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CN115195406B - Distributed air conditioning assembly, vehicle and indirect heat pump air conditioning system - Google Patents

Distributed air conditioning assembly, vehicle and indirect heat pump air conditioning system

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Publication number
CN115195406B
CN115195406B CN202211048607.8A CN202211048607A CN115195406B CN 115195406 B CN115195406 B CN 115195406B CN 202211048607 A CN202211048607 A CN 202211048607A CN 115195406 B CN115195406 B CN 115195406B
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China
Prior art keywords
air
valve
regulating valve
mode
intermediate medium
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Active
Application number
CN202211048607.8A
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Chinese (zh)
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CN115195406A (en
Inventor
覃峰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Songz Automobile Air Conditioning Co Ltd
Original Assignee
Songz Automobile Air Conditioning Co Ltd
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Priority to CN202211048607.8A priority Critical patent/CN115195406B/en
Publication of CN115195406A publication Critical patent/CN115195406A/en
Application granted granted Critical
Publication of CN115195406B publication Critical patent/CN115195406B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/00007—Combined heating, ventilating, or cooling devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/00007—Combined heating, ventilating, or cooling devices
    • B60H1/00021—Air flow details of HVAC devices
    • B60H1/00064—Air flow details of HVAC devices for sending air streams of different temperatures into the passenger compartment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H3/00—Other air-treating devices
    • B60H3/06—Filtering
    • B60H3/0608—Filter arrangements in the air stream

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Air-Conditioning For Vehicles (AREA)

Abstract

The invention discloses a distributed air conditioning assembly, a vehicle and an indirect heat pump air conditioning system, belongs to the technical field of heat pump air conditioning systems, and is designed for solving the problems of poor temperature and humidity effects and the like of the conventional air conditioning assembly in a partition mode. The invention discloses a distributed air conditioning assembly which comprises an air inlet module, an air conditioning box module and an air distribution module. The distributed air conditioning assembly, the vehicle, the indirect heat pump air conditioning system and the control method of the indirect heat pump air conditioning system form the configuration of various temperature partitions and various mode control of the passenger cabin in a modularized splicing mode, so that the functions and arrangement requirements of different vehicle types on the air conditioning system are met. The internal structure is reasonable, the flow resistance is small, the power consumption of the air conditioning system is low, and the arrangement is flexible.

Description

Distributed air conditioning assembly, vehicle and indirect heat pump air conditioning system
Technical Field
The invention relates to the technical field of heat pump air conditioning systems, in particular to a distributed air conditioning assembly, a vehicle, an indirect heat pump air conditioning system and a control method of the indirect heat pump air conditioning system.
Background
In order to adjust parameters such as temperature and humidity in a vehicle, an air conditioning system is generally provided in the vehicle. The air conditioning system generally comprises a fan, an evaporation core and a heating core, wherein the fan is used for generating air flow, the air flow is cooled into cold air after being blown through the evaporation core and used for uniformly cooling or dehumidifying the interior of the vehicle, and the air flow is heated into hot air after being blown through the heating core and used for uniformly heating the interior of the vehicle.
Air conditioning systems are usually designed to accommodate the maximum load of a full passenger, but automobiles are not fully loaded for most of the time of use, resulting in wasted energy. The air outlet grille is arranged on part of the vehicles, and after the air outlet grille is closed, air supply to the empty seats can be stopped, so that independent control of partition is realized.
In addition, the centralized air conditioning system further comprises the following defects that the independent adjustment range of the temperature, the air quantity and the like of each temperature area is very limited, the personalized requirements of each passenger on air conditioning cannot be completely met, the special functions of one-seat refrigeration, the other Xi Zhi heat and the like which require larger partition temperature difference cannot be realized, the appearance profile is higher, the centralized air conditioning system is usually placed below an instrument desk of a passenger cabin, the instrument desk protrudes outwards, the space occupied by passengers and stored objects in the cabin is occupied by the instrument desk, the internal structure is compact and complex, the flow resistance is higher, and the requirements on the pressure head and the power consumption of an air conditioning fan are high.
Disclosure of Invention
The invention aims to provide a distributed air conditioning assembly, a vehicle, an indirect heat pump air conditioning system and a control method of the indirect heat pump air conditioning system, which can completely and independently control parameters such as passenger cabin temperature/humidity, air quantity, mode and the like according to actual personnel carrying conditions, thereby meeting individual requirements of energy conservation and environmental comfort of the whole vehicle.
In order to achieve the purpose, on one hand, the invention adopts the following technical scheme:
The distributed air conditioning assembly comprises an air inlet module, an air conditioning box module and a defrosting air conditioner foot, wherein the air inlet module comprises an air inlet shell, a filter arranged on the air inlet of the air inlet shell, and a fresh air/circulating air door arranged on the outer side of the air inlet shell, a fresh air port is formed between the fresh air/circulating air door and the air inlet of the air inlet shell when the fresh air/circulating air door is in a first position, a circulating air port is formed between the fresh air/circulating air door and the air inlet of the air inlet shell when the fresh air/circulating air door is in a second position, the air conditioning box module at least comprises a first air conditioning box module, the first air conditioning box module comprises a first air conditioning box shell, the air inlet of the first air conditioning box shell is connected to an air outlet of the air inlet shell, a first air inlet of the first air conditioning box shell is sequentially provided with a first air blower, a first cold air core, a first temperature air door and a first warm air core along the air flow direction, and an air distribution sub-module at least comprises a first air distribution sub-module, the air inlet of the first air distribution sub-module is connected to the air outlet of the first air box shell, the first air conditioning box module is provided with a first air inlet of the first air conditioner foot, the first air conditioner foot is provided with a first air conditioner foot and a first air port, the first air conditioner foot is used for controlling the first air door and the first air door to defrost the first air door, and the first air door is provided with a first air door and the first air conditioner foot.
In one preferred embodiment, the air conditioning box module further comprises a second air conditioning box module, the second air conditioning box module comprises a second air conditioning box shell, an air inlet of the second air conditioning box shell is connected to the other air outlet of the air inlet shell, and a second blower, a second cold air core, a second temperature air door and a second warm air core are sequentially arranged in the second air conditioning box shell along the air flow direction.
In one preferred embodiment, the air distribution module further comprises a second air distribution sub-module, the second air distribution sub-module comprises a second air distribution shell, an air inlet of the second air distribution shell is connected to an air outlet of the second air conditioning box shell, a second air blowing surface air opening, a second foot blowing air opening and a second defrosting air opening which are mutually independent are formed in the second air distribution shell, a second air blowing surface air door for controlling the opening and the closing of the second air blowing surface air opening is arranged on the second air blowing surface air opening, a second foot blowing air door for controlling the opening and the closing of the second foot blowing air opening is arranged on the second foot blowing air opening, and a second defrosting air door for controlling the opening and the closing of the second defrosting air opening is arranged on the second defrosting air opening.
On the other hand, the invention adopts the following technical scheme:
The vehicle comprises a vehicle body, wherein a firewall is arranged on the front side of the vehicle body, a front cabin is arranged on the front side of the firewall in the vehicle body, a passenger cabin is arranged on the rear side of the firewall, the vehicle further comprises the distributed air conditioning assembly, the air inlet module and the air conditioning box module are arranged in the front cabin, and the air distribution module is arranged in the passenger cabin.
In one preferred embodiment, the distributed air conditioning assembly includes a first air distribution sub-module and a second air distribution sub-module, one of the first air distribution sub-module and the second air distribution sub-module is used for supplying air to the main driving seat and the peripheral area, and the other one of the first air distribution sub-module and the second air distribution sub-module is used for supplying air to the auxiliary driving seat and the peripheral area.
In one preferred embodiment, a group of distributed air conditioning assemblies are further arranged at the parking space of the vehicle body, and each distributed air conditioning assembly comprises a rear air inlet module, a rear air conditioning box module and two rear air distribution modules, wherein the two rear air distribution modules respectively supply air to the left and right seats and the surrounding area of the rear seat.
In yet another aspect, the present invention employs the following technical scheme:
An indirect heat pump air conditioning system comprises the distributed air conditioning assembly, a water pump valve group module, a heating and refrigerating module and a front-end cooling module, wherein the water pump valve group module is connected to the distributed air conditioning assembly and used for conveying an intermediate medium to the distributed air conditioning assembly, the heating and refrigerating module is connected to the water pump valve group module and used for exchanging heat with the intermediate medium in the water pump valve group module, and the front-end cooling module is connected to the water pump valve group module and is configured to enable the intermediate medium in the water pump valve group module to exchange heat with air.
In one preferred embodiment, the water pump valve group module comprises a hot side liquid distribution multi-way, a hot side liquid return distribution multi-way, a cold side liquid inlet distribution multi-way, a first mode regulating valve and a second mode regulating valve, wherein the hot side liquid inlet distribution multi-way, the hot side liquid return distribution multi-way, the cold side liquid return distribution multi-way and the cold side liquid inlet distribution multi-way are respectively connected to the distributed air regulating assembly through the first mode regulating valve and the second mode regulating valve, the hot side liquid return distribution multi-way is connected to a hot side liquid return tee joint, the hot side liquid return tee joint is respectively connected to a hot side medium pump and a liquid return tee joint valve, the hot side liquid inlet tee joint is respectively connected to a liquid inlet tee joint valve and the hot side liquid inlet distribution multi-way, the liquid inlet tee joint valve is respectively connected to a cold side liquid return tee joint and a flow regulating valve for regulating the flow of an intermediate medium, the flow regulating valve is respectively connected to the front side liquid inlet distribution multi-way and the cold side three-way valve, the cold side liquid return distribution multi-way valve is respectively connected to the cold side medium distribution multi-way valve, and the cold side medium distribution module is respectively.
In one preferred embodiment, the heating and refrigerating module comprises an electric compressor, an intermediate medium heater, an electronic expansion valve and an intermediate medium cooler which are sequentially connected to form a ring, a pipeline between the hot side medium pump and the hot side liquid return tee is connected with the intermediate medium heater to realize heat exchange, and a pipeline between the cold side liquid return tee and the cold side medium pump is connected with the intermediate medium cooler to realize heat exchange.
In one preferred embodiment, the front-end cooling module comprises a radiator, a fan assembly and an expansion kettle for exhausting gas in an intermediate medium, wherein the radiator is arranged in the blowing range of the fan assembly, one end of the expansion kettle is connected to the liquid return three-way valve, the other end of the expansion kettle is connected to the radiator, and the radiator is connected to the flow regulating valve.
In one preferred embodiment, the first mode regulating valve and the second mode regulating valve are of an integrated design, the first mode regulating valve and the second mode regulating valve respectively comprise a valve body, a valve core and an intermediate medium interface, eight intermediate medium interfaces are arranged on the valve body and are sequentially numbered as a-h, an internal flow passage is arranged on the valve core and is used for communicating the designated intermediate medium interfaces in each mode, five working modes are respectively arranged on the first mode regulating valve and the second mode regulating valve according to different valve core positions, wherein the valve core is in an intermediate position, a-h, b-c, d-e and g-f of the intermediate medium interfaces are respectively communicated, the rest interfaces are not communicated, the valve core rotates clockwise for a certain angle at the position of the mode 1, b-c and g-f of the intermediate medium interfaces are respectively communicated, the rest interfaces are not communicated, the valve core continues rotating clockwise for a certain angle at the position of the mode 2, the rest interfaces a-b-c and g-f of the intermediate medium interfaces are respectively communicated, the rest interfaces are respectively rotated anticlockwise, the valve core continues rotating for a certain angle at the position of the mode 4, and the rest interfaces are respectively communicated at the positions of the intermediate medium interfaces are not communicated, and the rest interfaces are respectively rotated anticlockwise.
In another aspect, the present invention adopts the following technical scheme:
The control method of the indirect heat pump air conditioning system is based on the indirect heat pump air conditioning system, and comprises the following steps:
The conventional refrigeration mode is that the a-h interface, the d-e interface and the b-c interface and the g-f interface of the first mode regulating valve and the second mode regulating valve are communicated, and the b-c interface and the g-f interface are disconnected; the low-temperature intermediate medium in the intermediate medium cooler completely enters the cold side liquid inlet distribution multi-way after passing through the cold side medium pump and the cold side liquid inlet tee joint, and flows into the first mode regulating valve and the second mode regulating valve respectively after passing through the cold side liquid inlet distribution multi-way; the low-temperature intermediate medium of the first branch flows into the first cold air core, and after the air inlet of the first air conditioning box module is cooled, the low-temperature intermediate medium returns to the first mode regulating valve and enters the cold side liquid return distribution multi-way; the low-temperature intermediate medium in the intermediate medium heater flows into the liquid inlet three-way valve through the hot side medium pump, the electric heater and the hot side liquid inlet three-way valve, the high-temperature intermediate medium enters the radiator through the flow regulating valve, the high-temperature intermediate medium dissipates heat to the ambient air in the radiator, and then sequentially returns to the intermediate medium heater through the expansion kettle, the liquid return three-way valve and the hot side liquid return three-way valve, the first temperature air door and the second temperature air door are both positioned at the fully closed positions, and the air inlet is respectively cooled through the first cold air core and the second cold air core;
The maximum refrigeration mode is that the liquid inlet three-way valve and the liquid return three-way valve are communicated through the b-c interfaces, and the first mode regulating valve and the second mode regulating valve are communicated through the a-b, d-e and g-h interfaces; the low-temperature intermediate medium in the intermediate medium cooler completely enters the cold side liquid inlet distribution multi-way after passing through the cold side medium pump and the cold side liquid inlet tee joint, and flows into the first mode regulating valve and the second mode regulating valve respectively after passing through the cold side liquid inlet distribution multi-way; the high-temperature intermediate medium in the intermediate medium heater flows to the liquid inlet three-way valve after passing through the hot side medium pump, the electric heater and the hot side liquid inlet three-way valve; the high-temperature intermediate medium enters a radiator through a flow regulating valve, radiates heat to ambient air in the radiator, then sequentially passes through an expansion kettle, a liquid return three-way valve and a hot side liquid return three-way valve and returns to the intermediate medium heater, the low-temperature intermediate medium in the first mode regulating valve flows into a first warm air core, then flows into a first cold air core through the first mode regulating valve, then returns to the first mode regulating valve and flows out, the low-temperature intermediate medium in the second mode regulating valve flows into a second warm air core, then flows into a second cold air core through the second mode regulating valve, then returns to the second mode regulating valve and flows out, the first temperature air door and the second temperature air door are both positioned at the full-open position, the air inlet of the first air conditioning box module sequentially passes through the first cold air core and the cooling of the first warm air core, and the air inlet of the second air conditioning box sequentially passes through the second cold air core and the cooling of the second warm air core;
The low-temperature intermediate medium in the intermediate medium cooler flows into a first warm core body after passing through a cold side medium pump and a cold side liquid inlet tee joint, absorbs heat from ambient air in a radiator through a flow regulating valve at a full-open position, then sequentially passes through an expansion kettle, a liquid return tee joint and a cold side liquid return tee joint and returns to the intermediate medium cooler, and then flows into a hot side liquid distribution multi-way branch through a hot side medium pump, an electric heater and the hot side liquid inlet tee joint, and flows into the first warm core body through the first mode regulating valve, then enters into a second warm core body through the first mode regulating valve and enters into a hot side air core body through the second air core body, and then flows into the second warm core body through the second air core body through the full-open position;
The maximum heating/defrosting mode is that the liquid inlet three-way valve and the liquid return three-way valve are communicated through an a-c interface; the b-c, e-f and g-h interfaces of the first mode regulating valve and the second mode regulating valve are communicated; the low-temperature intermediate medium in the intermediate medium cooler flows to the liquid inlet three-way valve after passing through the cold side medium pump and the cold side liquid inlet three-way valve; the high-temperature medium in the intermediate medium heater flows into the hot side liquid inlet three-way through the hot side medium pump, the electric heater and the hot side liquid inlet three-way and then all flows into the hot side liquid distribution multi-way branch and respectively flows into the first mode regulating valve and the second mode regulating valve, the high-temperature medium in the first mode regulating valve flows into the first warm air core, then flows into the first cold air core through the first mode regulating valve, then returns to the first mode regulating valve and flows out, and then flows into the second warm air core through the second mode regulating valve, and then flows into the second cold air core through the second mode regulating valve;
The refrigerating and dehumidifying mode includes that the liquid inlet three-way valve and the liquid return three-way valve are communicated through b-c interfaces, the first mode regulating valve and the second mode regulating valve are communicated through a-h interface, a-c interface, a-e interface and a-f-g interface, low-temperature intermediate medium in the intermediate medium cooler is completely fed into a cold side liquid inlet distribution multi-way through a cold side medium pump and a cold side liquid inlet three-way, the low-temperature intermediate medium respectively flows into a first mode regulating valve and a second mode regulating valve after passing through the cold side liquid inlet distribution multi-way, the low-temperature intermediate medium respectively flows into the first cold air core and the second cold air core through the first mode regulating valve and the second mode regulating valve, respectively flows into the hot side three-way through the hot side medium pump, the electric heater and the hot side liquid three-way, the first branch flows into the hot side liquid distribution multi-way through the first mode regulating valve and the second mode regulating valve, respectively flows into the first heat-return three-way, flows into the heat-way through the first mode regulating valve and the heat-return three-way, the heat medium in the heat-medium heater flows into the first branch, the heat-medium heater and the heat-side liquid three-way, and the heat-way, the heat-medium flows into the heat-insulating medium heater and flows into the first three-way, and flows into the heat-way, and flows into two branches respectively, returning to the intermediate medium cooler; the flow regulating valve regulates the flow of the high-temperature intermediate medium flowing through the radiator to a set value; the first temperature air door and the second temperature air door are opened to set positions according to the air outlet temperature requirement of the system, and the air inlet is respectively cooled by the first cold air core and the second cold air core and then is respectively heated by the first warm air core and the second warm air core;
The heating and dehumidifying mode is that the inlet three-way valve is communicated with an a-c interface of the return three-way valve, the a-h, b-c, d-e and f-g interfaces of the first mode regulating valve and the second mode regulating valve are communicated, high-temperature intermediate medium in the intermediate medium heater flows into the hot side inlet three-way valve through the hot side medium pump, the electric heater and the hot side inlet three-way valve and then flows into the hot side inlet liquid distribution multi-way and branches respectively, the high-temperature intermediate medium flows into the first warm air core and the second warm air core through the first mode regulating valve and the second mode regulating valve respectively, the low-temperature intermediate medium in the intermediate medium cooler flows into two branches after passing through the cold side medium pump and the cold side inlet three-way valve, the first branch flows into the cold side inlet liquid distribution multi-way valve through the first mode regulating valve and the second mode regulating valve respectively, then flows into the first cold air core and the second cold air core through the first mode regulating valve and the second mode regulating valve respectively, the high-temperature intermediate medium flows into the cold side inlet three-way valve and the cold side three-way valve and then flows into the cold side three-way valve and the cold side medium is absorbed, the heat medium flows into the environment after the heat medium is sequentially and the cold medium is absorbed, the air inlet is cooled through a first cold air core and a second cold air core respectively, the humidity is reduced, and then the air inlet is heated through a first warm air core and a second warm air core respectively;
A demisting mode, wherein all interfaces of the liquid inlet three-way valve and the liquid return three-way valve are not communicated; the low-temperature intermediate medium in the intermediate medium cooler is collected and discharged in the cold side liquid return distribution multi-way after passing through the cold side medium pump and the cold side liquid inlet tee joint, and then all enters the cold side liquid distribution multi-way, the low-temperature intermediate medium respectively flows into the first mode regulating valve and the second mode regulating valve after passing through the cold side liquid inlet distribution multi-way, flows into the first cold air core and the second cold air core respectively through the first mode regulating valve and the second mode regulating valve, flows into the first cold air core and the second cold air core respectively after passing through the first mode regulating valve and the second mode regulating valve, flows into the first air core and the second air core respectively after passing through the cold side liquid return distribution multi-way, and returns to the intermediate medium cooler after passing through the cold side liquid return tee joint;
The two-temperature zone area control is carried out, and the interfaces a-h, b-c, d-e and f-g of the first mode regulating valve and the second mode regulating valve are all communicated; the low-temperature intermediate medium flows into a first cold air core body and a second cold air core body through the first mode regulating valve and the second mode regulating valve respectively; the high-temperature intermediate medium flows into the first warm air core body and the second warm air core body through the first mode regulating valve and the second mode regulating valve respectively; when the heating function is executed, the interfaces of the liquid inlet three-way valve and the liquid return three-way valve are not communicated when the heating function is executed and the heating power completely depends on the compression work of a compressor, and the interfaces of the liquid inlet three-way valve and the liquid return three-way valve are not communicated, so that the high-temperature intermediate medium and the low-temperature intermediate medium do not enter the radiator;
The total cooling and total heating partition control is realized, the interfaces a-b, d-e and g-h of the first mode regulating valve are communicated, the first temperature air door is in a full-open position, so that the first air conditioning box module is in a maximum refrigerating mode with two cores connected in series, the interfaces b-c, e-f and g-h of the second mode regulating valve are communicated, the second temperature air door is in a full-open position, so that the second air conditioning box module is in a maximum heating mode with two cores connected in series, and/or,
The ice melting mode is that the b-c interfaces of the liquid inlet three-way valve and the liquid return three-way valve are communicated, and the a-h, b-c, d-e and f-g interfaces of the first mode regulating valve and the second mode regulating valve are communicated; the low-temperature intermediate medium in the intermediate medium cooler completely enters the cold side liquid inlet distribution multi-way after passing through the cold side medium pump and the cold side liquid inlet tee joint, and flows into the first mode regulating valve and the second mode regulating valve respectively after passing through the cold side liquid inlet distribution multi-way; the low-temperature intermediate medium flows into the first cold air core and the second cold air core through the first mode regulating valve and the second mode regulating valve respectively, the high-temperature intermediate medium in the intermediate medium heater is divided into two branches after passing through the hot side medium pump, the electric heater and the hot side liquid inlet tee joint, the first branch flows into the hot side liquid inlet distribution tee joint, then flows into the first hot air core and the second hot air core through the first mode regulating valve and the second mode regulating valve respectively, then returns to the first mode regulating valve and the second mode regulating valve respectively, the intermediate medium in the first mode regulating valve and the second mode regulating valve respectively enters the hot side liquid return distribution tee joint and flows into the hot side liquid return tee joint after being converged, the second branch flows into the liquid inlet tee joint valve, ambient air is cooled in the radiator after passing through the flow regulating valve, the fan assembly is not opened, then flows into the hot side liquid return tee joint through the expansion kettle and the liquid return tee joint in sequence, the two paths of medium flow into the hot side liquid return joint in the hot side liquid return tee joint, the intermediate medium is converged in the hot side liquid return joint, the intermediate medium flows into the heat radiator to a set value after being converged, and flows into the intermediate medium flow through the high-temperature regulating valve.
The distributed air conditioning assembly comprises an air inlet module, an air conditioning box module and an air distribution module, and the configuration of various temperature partitions and various mode control of the passenger cabin is formed in a modular splicing mode, so that the functions and arrangement requirements of different vehicle types on an air conditioning system are met. The internal structure is reasonable, the flow resistance is small, the power consumption of the air conditioning system is low, and the arrangement is flexible.
The vehicle disclosed by the invention comprises the distributed air conditioning assembly, the indirect heat pump air conditioning system disclosed by the invention comprises the distributed air conditioning assembly, the control method of the indirect heat pump air conditioning system disclosed by the invention is based on the indirect heat pump air conditioning system, the parameters such as passenger cabin temperature/humidity, air quantity, mode and the like can be completely and independently controlled in a partition mode according to actual personnel carrying conditions, so that the individual requirements of energy conservation and environmental comfort of the whole vehicle are met. Meanwhile, the distributed air conditioning assembly is provided with independent modularized air conditioning boxes for each passenger seat, and the overall size of a single air conditioning box module is obviously reduced, so that the distributed air conditioning assembly is conveniently arranged in a front cabin, the occupation of the passenger cabin space is reduced, the arrangement flexibility of the air conditioning assembly on the whole vehicle is improved, and the matching difficulty of key parts such as fans is reduced.
Drawings
FIG. 1 is a schematic diagram of a distributed air conditioning assembly according to an embodiment of the present invention;
FIG. 2 is a side view of a dual temperature zone air conditioner according to an embodiment of the present invention;
FIG. 3 is a top view of a dual temperature zone air conditioner according to an embodiment of the present invention;
FIG. 4 is a side view of a single temperature zone air conditioner provided in an embodiment of the present invention;
fig. 5 is a plan view of a single temperature zone air conditioner according to an embodiment of the present invention;
FIG. 6 is a side view of a four temperature zone air conditioner provided in accordance with an embodiment of the present invention;
FIG. 7 is a top view of a four temperature zone air conditioner according to an embodiment of the present invention;
FIG. 8 is a side view of a three temperature zone air conditioner provided in an embodiment of the present invention;
Fig. 9 is a top view of a three-temperature zone air conditioner according to an embodiment of the present invention;
FIG. 10 is a schematic diagram of an indirect heat pump air conditioning system using a distributed air conditioning assembly according to an embodiment of the present invention;
FIG. 11 is a schematic diagram of an integrated mode control valve according to an embodiment of the present invention;
FIG. 12 is a schematic diagram of an operating mode of an integrated mode regulator valve according to an embodiment of the present invention;
FIG. 13 is a schematic view of a conventional heat pump air conditioning system during cooling according to an embodiment of the present invention;
FIG. 14 is a schematic view of a heat pump air conditioning system with maximum cooling according to an embodiment of the present invention;
fig. 15 is a schematic structural diagram of a conventional heat pump air conditioning system for heating according to an embodiment of the present invention;
FIG. 16 is a schematic view of a heat pump air conditioning system for maximum heating/defrosting according to an embodiment of the present invention;
FIG. 17 is a schematic diagram of a heat pump air conditioning system during refrigeration and dehumidification according to an embodiment of the present invention;
FIG. 18 is a schematic diagram of a heat pump air conditioning system for heating and dehumidifying according to an embodiment of the present invention;
FIG. 19 is a schematic view of a demisting heat pump air conditioning system according to an embodiment of the present invention;
FIG. 20 is a schematic diagram of a heat pump air conditioning system during a dual temperature zone control according to an embodiment of the present invention;
FIG. 21 is a schematic diagram of a heat pump air conditioning system during total cooling and total heating zone control according to an embodiment of the present invention;
fig. 22 is a schematic structural diagram of a heat pump air conditioning system for ice melting according to an embodiment of the present invention.
Detailed Description
In order that the above objects, features and advantages of the invention will be readily understood, a more particular description of the invention will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The invention may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit or scope of the invention, which is therefore not limited to the specific embodiments disclosed below.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed, mechanically connected, electrically connected, directly connected, indirectly connected through an intervening medium, or in communication between two elements or in an interaction relationship between two elements, unless otherwise explicitly specified. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present invention, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.
The present embodiment discloses a distributed air conditioning assembly, as shown in fig. 1, comprising an air intake module 1, an air conditioning box module 14 and an air distribution module 16. The air inlet module 1 comprises an air inlet shell 6, a filter 5 arranged on an air inlet of the air inlet shell 6, and a fresh air/circulating air door 3 arranged on the outer side of the air inlet shell 6, wherein a fresh air port 2 is formed between the fresh air/circulating air door 3 and the air inlet of the air inlet shell 6 when the fresh air/circulating air door 3 is positioned at a first position, and a circulating air port 4 is formed between the fresh air/circulating air door 3 and the air inlet of the air inlet shell 6 when the fresh air/circulating air door is positioned at a second position. The air conditioning box module 14 comprises at least a first air conditioning box module 13, the first air conditioning box module 13 comprises a first air conditioning box shell 12, an air inlet of the first air conditioning box shell 12 is connected to an air outlet of the air inlet shell 6, and a first blower 8, a first cold air core 9, a first temperature air door 10 and a first warm air core 11 are sequentially arranged in the first air conditioning box shell 12 along the air flow direction. The air distribution module 16 at least comprises a first air distribution sub-module 24, the first air distribution sub-module 24 comprises a first air distribution shell 17, an air inlet of the first air distribution shell 17 is connected to an air outlet of the first air conditioning box shell 12, a first air blowing surface air opening 19, a first air blowing foot air opening 21 and a first defrosting air opening 23 which are mutually independent are formed in the first air distribution shell 17, a first air blowing surface air door 18 for controlling the opening and the closing of the first air blowing surface air opening 19 is arranged, a first air blowing foot air door 20 for controlling the opening and the closing of the first air blowing foot air opening 21 is arranged, and a first defrosting air door 22 for controlling the opening and the closing of the first defrosting air opening 23 is arranged.
On the basis of the above structure, the air conditioning case module 14 further includes a second air conditioning case module 39, the second air conditioning case module 39 includes a second air conditioning case housing 34, an air inlet of the second air conditioning case housing 34 is connected to another air outlet of the air intake housing 6, and a second blower 38, a second cool air core 37, a second temperature damper 36, and a second warm air core 35 are sequentially disposed in the second air conditioning case housing 34 along the air flow direction. The air distribution module 16 further comprises a second air distribution sub-module 32, the second air distribution sub-module 32 comprises a second air distribution shell 31, an air inlet of the second air distribution shell 31 is connected to an air outlet of a second air conditioning box shell 34, a second air blowing surface air opening 25, a second air blowing foot air opening 27 and a second defrosting air opening 29 which are mutually independent are formed in the second air distribution shell 31, a second air blowing surface air door 26 for controlling the opening and the closing of the second air blowing surface air opening 25 is arranged on the second air blowing surface air opening 25, a second air blowing foot air door 28 for controlling the opening and the closing of the second air blowing foot air opening 27 is arranged on the second air blowing foot air opening 27, and a second defrosting air door 30 for controlling the opening and the closing of the second air blowing foot air opening 29 is arranged on the second air distribution shell 29.
In the distributed air conditioning assembly, the first blower 8 and the second blower 38 are used as power sources, and air is sucked from the air inlet module 1, pushed to flow in the air conditioning box module 14 and discharged from the air distribution module 16. The intake housing 6 forms an intake runner, and the fresh air/circulation damper 3 opens/closes the fresh air port 2 or the circulation air port 4 by translation or rotation, thereby controlling the source and proportion of intake air flowing into the intake module 1. The intake air is purified by the filter 5 along the intake runner and then split into one or more flows into the corresponding air conditioning box modules.
As shown in fig. 1, the air flow flowing into the air conditioning box module 14 is branched into two branches, a first air conditioning box module 13 and a first air distribution sub-module 24 constituting a first branch, and a second air conditioning box module 39 and a second air distribution sub-module 32 constituting a second branch. The air intake module 1 is connected to the first air conditioning case module 13 at the first air conditioning case air inlet 7, and the air intake module 1 is connected to the second air conditioning case module 39 at the second air conditioning case air inlet 40. In the first branch, the first air-conditioning case 12 forms a first air-conditioning case inner flow passage, and the air quantity flowing through the first branch can be regulated by changing the rotation speed of the first blower 8. The air flow discharged from the first blower 8 entirely enters the first cool air core 9 and radiates heat to the low-temperature intermediate medium in the core, so that the temperature of the intake air is reduced, the humidity is reduced, and then flows through the first temperature damper 10. The first temperature damper 10 changes its position according to a control signal, introduces a part of the low temperature air flow into the first warm air core 11, and absorbs heat from the high temperature intermediate medium in the core, thereby raising the temperature of the part of the air flow. This portion of the intermediate temperature air flow is then mixed with the low temperature intake air bypassed by the first temperature damper 10 and then conditioned to the desired temperature and humidity before flowing into the first air distribution sub-module 24.
The first air conditioning box module 13 is connected to the first air distribution sub-module 24 at a first air conditioning box-air distribution sub-module interface 15. The air flow with the temperature and humidity adjusted flows out from the first blowing face air port 19, the first foot blowing air port 21 and the first defrosting air port 23 along the first air distribution flow path formed by the first air distribution housing 17. The first face-blowing damper 18, the first foot-blowing damper 20, and the first defroster damper 22 control the flow rate of the air flow from the air ports by adjusting the positions of the respective dampers.
Similarly, in the second leg, the second air box housing 34 defines a second air box interior flow path, and the amount of air flowing through the second leg can be adjusted by varying the speed of the second blower 38. The air flow discharged from the second blower 38 entirely enters the second cool air core 37 and radiates heat to the low temperature intermediate medium in the core, so that the temperature of the intake air is reduced, the humidity is reduced, and then flows through the second temperature damper 36. The second temperature damper 36 is adapted to change its position in response to a control signal, to introduce a portion of the low temperature air stream into the second warm air core 35 and absorb heat from the high temperature intermediate medium in the core, thereby raising the temperature of the portion of the air stream. This portion of the intermediate temperature air flow is then mixed with the low temperature intake air bypassed by the second temperature damper 36 and adjusted to the desired temperature and humidity before flowing into the second air distribution sub-module 32. The second air conditioning case module 39 is connected to the second air distribution sub-module 32 at a second air conditioning case-air distribution sub-module interface 33. The air flow with the temperature and humidity adjusted flows out of the second blowing face air port 25, the second foot air port 27 and the second defrost air port 29 along the second air distribution flow path formed by the second air distribution housing 31. The second face-blowing damper 26, the second foot-blowing damper 28, and the second defroster damper 30 control the flow rate of the air flow from the air ports by adjusting the positions of the respective dampers.
The distributed air conditioning assembly can form the configuration of various temperature partitions and various mode control of the passenger cabin in a modularized splicing mode, so that the functions and arrangement requirements of different vehicle types on an air conditioning system are met.
As shown in fig. 2 to 9, the vehicle includes a vehicle body, a firewall 42 is provided on a front side of the vehicle body, a front cabin 41 is provided on a front side of the firewall 42 in the vehicle body, a passenger cabin 43 is provided on a rear side of the firewall 42, the air intake module 1 and the air conditioning box module 14 are provided in the front cabin 41, and the air distribution module 16 is provided in the passenger cabin 43.
An air conditioning assembly configuration that provides dual temperature zone control for the passenger compartment is shown in fig. 2 and 3. The air intake module 1, the air conditioning box module 14 are arranged inside the front cabin 41 in front of the firewall 42, and the air distribution module 16 is arranged inside the passenger cabin 43 behind the firewall 42. The air conditioning box module 14 includes a first air conditioning box module 13 and a second air conditioning box module 39, and the air distribution module 16 includes a first air distribution sub-module 24 and a second air distribution sub-module 32. The fresh air of the environment of the vehicle head or the return air at the front part of the vehicle interior enters the air conditioning assembly from the air inlet module 1 and is divided into two paths, one path sequentially passes through the first air conditioning box module 13 and the first air distribution sub-module 24 to supply air to the main driving seat 44 and the peripheral area thereof, and the other path sequentially passes through the second air conditioning box module 39 and the second air distribution sub-module 32 to supply air to the auxiliary driving seat 45 and the peripheral area thereof. The first air conditioning box module 13 and the second air conditioning box module 39 independently adjust the air quantity, the temperature and the humidity of the flowing air by means of fans, heat exchange cores and temperature air doors in the modules according to the requirements of passengers, the first air distribution sub-module 24 and the second air distribution sub-module 32 independently adjust the air supply mode by means of the internal air doors according to the requirements of the passengers, and therefore the air conditioning functions of double temperature partition and independent modes, wherein the air supply temperature/humidity, the air quantity and the air supply mode of the main driving and the auxiliary driving can be independently adjusted, are achieved on the whole vehicle.
An air conditioning assembly configuration that provides single temperature zone control for the passenger compartment is shown in fig. 4 and 5. The arrangement is similar to that of the dual-temperature zone air conditioner, but the air conditioning box module 14 only comprises the first air conditioning box module 13, the air distribution module 16 can comprise one or two air distribution sub-modules, in the embodiment, the air distribution module 16 comprises the first air distribution sub-module 24 and the second air distribution sub-module 32, so that the air supply temperature/humidity and the air quantity of the main driving seat 44 and the auxiliary driving seat 45 can not be independently regulated, and the mode can realize the single-temperature zone air conditioning function of independent or independent regulation according to the configuration.
An air conditioning assembly configuration that provides four temperature zone control for the passenger compartment is shown in fig. 6 and 7. The arrangement mode of the front cabin and the front row of air conditioning assemblies is the same as that of the double-temperature-zone air conditioner, and meanwhile, a single set of air conditioning assemblies is added at the tail part of the vehicle body, and the front cabin and the front row of air conditioning assemblies comprise a rear air inlet module 49, a rear air conditioning box module 48 and a rear air distribution module 47. Rear air conditioning case module 48 includes a first rear air conditioning case module 51 and a second rear air conditioning case module 53, and rear air distribution module 47 includes a first rear air distribution sub-module 50 and a second rear air distribution sub-module 52. The ambient fresh air at the rear of the vehicle body or the return air at the rear of the vehicle enters the air conditioning assembly from the rear air inlet module 49 and is then divided into two paths, one path sequentially passes through the first rear air conditioning box module 51 and the first rear air distribution sub-module 50 to supply air to the left seat of the rear seat 46 and the peripheral area thereof, and the other path sequentially passes through the second rear air conditioning box module 53 and the second rear air distribution sub-module 52 to supply air to the right seat of the rear seat 46 and the peripheral area thereof. The first rear air conditioning box module 51 and the second rear air conditioning box module 53 independently adjust the air quantity, temperature and humidity of the flowing air by means of fans, heat exchange cores and temperature air doors in the modules according to the requirements of passengers, the first rear air distribution sub-module 50 and the second rear air distribution sub-module 52 independently adjust the air supply mode by means of the internal air doors according to the requirements of the passengers, and therefore the air conditioning functions of four temperature partitions and independent modes, wherein the air supply temperature/humidity, the air quantity and the air supply modes of front row main driving and auxiliary driving and rear row left mat and right mat can be independently adjusted, are achieved on the whole vehicle.
An air conditioning assembly configuration that provides three temperature zone control for the passenger compartment is shown in fig. 8 and 9. The arrangement is similar to that of a four-temperature zone air conditioner, but the rear air conditioning box module 48 only comprises one air conditioning box module, and the rear air distribution module 47 can comprise one or two air distribution sub-modules, so that the air supply temperature/humidity and air quantity of the left mat and the right mat of the rear seat 46 can not be independently regulated, and the mode can realize the function of independent or independent regulation according to the configuration. And the front-row double-temperature-zone air conditioner assembly is combined, so that the air conditioning functions of three-temperature partition and independent modes, wherein the temperature/humidity, the air quantity and the mode of air supply of the main drive, the auxiliary drive and the rear row can be independently regulated, are realized on the whole vehicle.
The air conditioning assembly and the air conditioning system can completely and independently control parameters such as temperature/humidity, air quantity, mode and the like of the passenger cabin according to actual personnel carrying conditions, thereby meeting individual requirements of energy conservation and environmental comfort of the whole vehicle. Meanwhile, the distributed air conditioning assembly is provided with independent modularized air conditioning boxes for each passenger seat, and the overall size of a single air conditioning box module is obviously reduced, so that the distributed air conditioning assembly is conveniently arranged in a front cabin, the occupation of the passenger cabin space is reduced, the arrangement flexibility of the air conditioning assembly on the whole vehicle is improved, and the matching difficulty of key parts such as fans is reduced.
As shown in fig. 10, the indirect heat pump air conditioning system includes a distributed air conditioning assembly, a water pump valve block 73, a heating and cooling module 57, and a front end cooling module 54, and an intermediate medium with a suitable temperature is provided to an air conditioning box module 14 including one or more air conditioning box modules in the distributed air conditioning assembly by the three functional modules of the water pump valve block 73, the heating and cooling module 57, and the front end cooling module 54.
Wherein the water pump valve group module 73 is connected to the distributed air conditioning assembly and delivers an intermediate medium to the distributed air conditioning assembly, the heating and cooling module 57 is connected to the water pump valve group module 73 and exchanges heat with the intermediate medium in the water pump valve group module 73, the front end cooling module 54 is connected to the water pump valve group module 73, and the front end cooling module 54 is configured to enable the intermediate medium in the water pump valve group module 73 to exchange heat with air.
The water pump valve block 73 comprises a hot side liquid distribution multi-way 69, a hot side liquid return distribution multi-way 70, a cold side liquid return distribution multi-way 74, a cold side liquid inlet distribution multi-way 75, a first mode regulating valve 72 and a second mode regulating valve 71, wherein the hot side liquid inlet distribution multi-way 69, the hot side liquid return distribution multi-way 70, the cold side liquid return distribution multi-way 74 and the cold side liquid inlet distribution multi-way 75 are respectively connected to the distributed air regulating assembly through the first mode regulating valve 72 and the second mode regulating valve 71, the hot side liquid return distribution multi-way 70 is connected to the hot side liquid return tee 68, the hot side liquid return tee 68 is respectively connected to the hot side medium pump 63 and the liquid return tee 67, the hot side medium pump 63 is connected to the hot side liquid inlet tee 64 through the electric heater 65, the hot side liquid inlet tee 64 is respectively connected to the liquid inlet tee 62 and the hot side liquid inlet distribution multi-way 69, the liquid inlet tee 62 is respectively connected to the cold side liquid tee 78 and the flow regulating valve 77 for regulating the flow rate of an intermediate medium, the flow regulating valve 77 is connected to the front end cooling module 54, the cold side liquid inlet distribution multi-way 78 and the cold side liquid return medium distribution multi-way 67 is respectively connected to the cold side three-way valve 66, the cold side medium pump 66 is respectively connected to the cold side three-way valve 79, and the cold side medium return three-way valve 67 is respectively, and the hot side medium pump 63 is connected to the hot side liquid inlet three-way 64 is respectively, and the hot side liquid inlet three-way 6 is respectively.
The heating and refrigerating module 57 includes an electric compressor 60, an intermediate medium heater 61, an electronic expansion valve 59, and an intermediate medium cooler 58 which are connected in this order through pipes, and a pipe between a hot side medium pump 63 and a hot side return tee 68 is connected to the intermediate medium heater 61 to effect heat exchange, and a pipe between a cold side return tee 66 and a cold side medium pump 79 is connected to the intermediate medium cooler 58 to effect heat exchange.
The front-end cooling module 54 includes a radiator 55, a fan assembly 56, and an expansion kettle 76 for exhausting air in an intermediate medium, the radiator 55 is disposed in a blowing range of the fan assembly 56, one end of the expansion kettle 76 is connected to a liquid return three-way valve 67, the other end is connected to the radiator 55, and the radiator 55 is connected to a flow rate regulating valve 77.
The refrigerant of the indirect heat pump air conditioning system circulates through the components and refrigerant lines of the heating and cooling module 57. According to the system requirement, the refrigerant can be selected from conventional refrigerants such as R134a, R1234yf, R407c, R410a and the like, can also be selected from high-performance and high-environmental-protection refrigerants such as R290, R744 and the like, and can also be selected from other phase-change refrigerants capable of meeting the requirement.
The intermediate medium of the indirect heat pump air conditioning system circulates in the front end cooling module 54, the heating and cooling module 57, the water pump valve block module 73, the components of the air conditioning case module 14 and the intermediate medium pipeline. According to the system requirement, the intermediate medium can be selected from, but not limited to, pure water, a mixture of water and alcohols such as glycol or glycerol, a solution of water and inorganic salts, alcohols, oils and other liquid mediums.
In the indirect heat pump air conditioning system, three intermediate medium interfaces are arranged on valve bodies of a liquid inlet three-way valve 62 and a liquid return three-way valve 67, and are sequentially numbered as a-c. The three-way valve 62 and the three-way valve 67 have three working modes, namely, mode 1, the intermediate medium interfaces a-c are communicated and the other interfaces are not communicated, mode 2, the intermediate medium interfaces b-c are communicated and the other interfaces are not communicated, and mode 3, the intermediate medium interfaces are not communicated. The intermediate medium inlet 62-a of the inlet three-way valve 62 is connected with the cold side inlet three-way valve 78, the intermediate medium inlet 62-b is connected with the hot side inlet three-way valve 64, and the intermediate medium outlet 62-c is connected with the flow regulating valve 77. The intermediate medium outlet 67-a of the return three-way valve 67 is connected with the cold side return three-way 66, the intermediate medium outlet 67-b is connected with the hot side return three-way 68, and the intermediate medium inlet 67-c is connected with the expansion kettle 76.
The first mode adjustment valve 72 and the second mode adjustment valve 71 are used to control the flow direction of the intermediate medium, thereby realizing different system operation modes. As shown in FIG. 11, the mode regulator valve is preferably of an integrated design, including a valve body 80, a valve spool 81 and an intermediate medium port 82. Eight intermediate medium interfaces 82 are arranged on the valve body 80 and are numbered a-h in sequence, and a specially designed internal flow passage is arranged on the valve core 81 and is used for communicating the designated intermediate medium interfaces 82 in each mode. By rotating the valve core 81 to different positions, different media interface communication modes can be realized, so that the flow direction of media is changed, and different system operation modes are realized.
As shown in FIG. 12, the mode control valve has five typical operation modes, namely, a mode 1, a valve core 81 is in an intermediate position, a-h, b-c, d-e and g-f of an intermediate medium interface 82 are respectively communicated and the rest of the interfaces are not communicated, a mode 2, a valve core 81 rotates clockwise by a certain angle at the position of the mode 1, b-c and g-f of the intermediate medium interface 82 are respectively communicated and the rest of the interfaces are not communicated, a mode 3, a valve core 81 continues to rotate clockwise by a certain angle at the position of the mode 2, a-b, d-e and g-h of the intermediate medium interface 82 are respectively communicated and the rest of the interfaces are not communicated, a mode 4, a valve core 81 rotates anticlockwise by a certain angle at the position of the mode 1, a-h, d-e and g-h of the intermediate medium interface 82 are respectively communicated and the rest of the interfaces are not communicated, and a mode 5, a valve core 81 continues to rotate anticlockwise by a certain angle at the position of the mode 4.
Of course, the function of the mode adjustment valve may be implemented by a combination of a plurality of two-way valves, three-way valves, or four-way valves.
The mode regulating valve is connected with other parts of the heat pump air conditioning system in the following manner that an interface 72-a of a first mode regulating valve 72 is connected with a cold side liquid inlet distribution multi-way 75, an interface 72-b is connected with an inlet of a first warm air core 11, an interface 72-c is connected with a hot side liquid inlet distribution multi-way 69, an interface 72-d is connected with a cold side liquid return distribution multi-way 74, an interface 72-e is connected with an outlet of the first cold air core 9, an interface 72-f is connected with the hot side liquid return distribution multi-way 70, an interface 72-g is connected with an outlet of the first warm air core 11, and an interface 72-h is connected with an inlet of the first cold air core 9. The interface 71-a of the second mode regulating valve 71 is connected with the cold side liquid inlet distribution manifold 75, the interface 71-b is connected with the inlet of the second warm air core 35, the interface 71-c is connected with the hot side liquid inlet distribution manifold 69, the interface 71-d is connected with the cold side liquid return distribution manifold 74, the interface 71-e is connected with the outlet of the second cold air core 37, the interface 71-f is connected with the hot side liquid return distribution manifold 70, the interface 71-g is connected with the outlet of the second warm air core 35, and the interface 71-h is connected with the inlet of the second cold air core 37.
Based on the above structure, the cold side liquid inlet distribution manifold 75 and the hot side liquid inlet distribution manifold 69 are both of one-inlet and one-outlet structure, and the number of outlet branches is equal to the number of hollow box modules in the system. The cold side liquid return distribution manifold 74 and the hot side liquid return distribution manifold 70 are all of a multiple-in-one-out structure, and the number of inlet branches is equal to the number of hollow box modules in the system. The flow regulating valve 77 regulates the flow of the intermediate medium through the branch by changing its own path.
The refrigerant circulation path is that the compressor 60 sucks low-temperature low-pressure gaseous refrigerant from an inlet, compresses it into high-temperature high-pressure gaseous refrigerant, and discharges it. The high-temperature and high-pressure gaseous refrigerant flows into the intermediate medium heater 61, exchanges heat with the intermediate medium having a low temperature in the interior thereof, and is liquefied into a medium-temperature and high-pressure liquid refrigerant by heat release. The liquid refrigerant then flows into the electronic expansion valve 59 and throttles expansion, converting to a two-phase fluid at low temperature and low pressure. The two-phase refrigerant then flows into the intermediate medium cooler 58 where it exchanges heat with the higher temperature intermediate medium and is gasified by heat absorption to a medium temperature low pressure gaseous refrigerant. The low temperature low pressure gaseous refrigerant eventually flows back to the inlet of the compressor 60.
The intermediate medium circulation path is that the intermediate medium exchanges heat with the refrigerant in the intermediate medium cooler 58 and is cooled into low-temperature intermediate medium, and the low-temperature intermediate medium is pumped by the cold side medium pump 79 and is conveyed to the cold side liquid inlet tee 78, and then the low-temperature intermediate medium circulation path is divided into two paths, namely one path flows to the cold side liquid inlet distribution tee 75, and the other path flows to the liquid inlet tee valve 62. The intermediate medium exchanges heat with the refrigerant in the intermediate medium heater 61 and is heated into a high-temperature intermediate medium, and the intermediate medium is pumped by the hot side medium pump 63, is conveyed to the hot side liquid inlet tee 64 through the electric heater 65 and is divided into two paths, wherein one path flows to the hot side liquid inlet distribution multi-way 69, and the other path also flows to the liquid inlet tee valve 62.
The low-temperature intermediate medium is divided into a plurality of branches again through the cold side liquid distribution manifold 75 and flows into the mode regulating valves respectively, and the high-temperature intermediate medium is divided into a plurality of branches again through the hot side liquid distribution manifold 69 and flows into the mode regulating valves respectively. The first branch is that the low-temperature intermediate medium flows into the valve body from the 72-a interface of the first mode regulating valve 72, flows out of the valve body from the 72-d interface and enters the cold side liquid return distribution multi-way 74, and the high-temperature intermediate medium flows into the valve body from the 72-c interface of the first mode regulating valve 72, flows out of the valve body from the 72-f interface and enters the hot side liquid return distribution multi-way 70. The intermediate medium entering the valve body flows into the first cold air core 9 through 72-h to exchange heat with air flowing through the core, and then returns to the first mode regulating valve 72 from the 72-e interface, and flows into the first warm air core 11 through 72-b to exchange heat with air flowing through the core, and then returns to the first mode regulating valve 72 from the 72-g interface. The second branch is that the low-temperature intermediate medium flows into the valve body from the 71-a interface of the second mode regulating valve 71, flows out of the valve body from the 71-d interface and enters the cold side liquid return distribution multi-way 74, and the high-temperature intermediate medium flows into the valve body from the 71-c interface of the second mode regulating valve 71, flows out of the valve body from the 71-f interface and enters the hot side liquid return distribution multi-way 70. The intermediate medium entering the valve body flows into the second cold air core 37 through the interface 71-h, exchanges heat with the air flowing through the core, and then returns to the second mode regulating valve 71 from the interface 71-e. If there are more branches, the flow of each branch is identical to that described above. The mode regulating valves are in corresponding working modes according to the control signals, so that the interface communication mode is controlled.
The liquid inlet three-way valve 62 is in a corresponding working mode according to the control signal, and selectively allows the high-temperature intermediate medium or the low-temperature intermediate medium to flow into the flow regulating valve 77, continuously flows into the radiator 55, exchanges heat with the surrounding environment, passes through the expansion kettle 76, discharges the entrained gas, and then enters the liquid return three-way valve 67. The fan assembly 56 operates in response to the control signal to drive ambient air through the radiator and exchange heat with an intermediate medium within the radiator 55. The three-way return valve 67 is in a corresponding operating mode according to the control signal, and selectively allows the intermediate medium passing through the cooling module 54 to enter the hot-side three-way return valve 68 or the cold-side three-way return valve 66.
The intermediate medium having entered the cold-side return liquid distribution manifold 74 and having a temperature increased passes through the cold-side return liquid tee 66 and is mixed with the intermediate medium flowing back from the return liquid tee valve 67, and is returned to the intermediate medium cooler 58. The intermediate medium having entered the hot-side return liquid distribution manifold 70 and having a reduced temperature passes through the hot-side return liquid tee 68 and is mixed with the intermediate medium flowing back from the return liquid tee valve 67, and is returned to the intermediate medium heater 61.
The indirect heat pump air conditioning system has various working modes, and typical working modes of the system comprise various working modes such as conventional refrigeration (single core), maximum refrigeration (serial connection of two cores), conventional heating (single core), maximum heating/defrosting (serial connection of two cores), refrigeration and dehumidification, heating and dehumidification, defogging, partition control (double temperature area), partition control (total cooling and total heating), and/or ice melting mode. The meaning of "and/or" is that the indirect heat pump air conditioning system may perform one, several or all of the above-described modes of operation, and does not require that all modes of operation be available.
Fig. 13 shows a system operation mode-normal cooling (single-body) mode. The three-way valve 62 and the three-way valve 67 are both in mode 2, and the b-c interfaces of the three-way valves are communicated. The first mode regulating valve 72 and the second mode regulating valve 71 are both in the mode 4, the interfaces a-h and d-e of the mode regulating valves are communicated, so that intermediate media flow through the first cold air core 9 and the second cold air core 37, the interfaces b-c and g-f of the mode regulating valves are disconnected, and no intermediate media flow through the first warm air core 11 and the second warm air core 35.
The low-temperature intermediate medium in the intermediate medium cooler 58 passes through the cold side medium pump 79 and the cold side liquid feed tee 78, then enters the cold side liquid feed distribution manifold 75 and branches, and then flows into the first mode adjustment valve 72 and the second mode adjustment valve 71, respectively. The low-temperature intermediate medium of the first branch flows into the first cold air core 9 to cool the air intake of the first air conditioning box module 13, then flows into the cold side liquid return distribution manifold 74 from the return first mode adjusting valve 72, and the low-temperature intermediate medium of the second branch flows into the second cold air core 37 to cool the air intake of the second air conditioning box module 39, then flows back into the second mode adjusting valve 71 to enter the cold side liquid return distribution manifold 74. The multiple intermediate media are collected and discharged in a cold side return distribution manifold 74, through a cold side return tee 66, and back to the intermediate media cooler 58.
The high-temperature intermediate medium in the intermediate medium heater 61 flows to the liquid inlet three-way valve 62 after passing through the hot side medium pump 63, the electric heater 65 and the hot side liquid inlet three-way 64, and the electric heater 65 does not work in this mode. The high-temperature intermediate medium passes through a flow regulating valve 77 at a fully opened position, dissipates heat from ambient air in the radiator 55, and then sequentially passes through an expansion kettle 76, a liquid return three-way valve 67 and a hot side liquid return three-way valve 68 to return to the intermediate medium heater 61. The fan assembly 56 may be turned on as needed to ensure ambient air flow through the radiator 55.
The first temperature air door 10 in the first air conditioning box module 13 and the second temperature air door 36 in the second air conditioning box module 39 are positioned at the fully closed position, and the air intake passes through the first cold air core 9 and the second cold air core 37 and is cooled, so that the conventional refrigeration function is realized.
Fig. 14 shows a second mode of system operation, maximum refrigeration (two cores in series). The three-way valve 62 and the three-way valve 67 are both in mode 2, and the b-c interfaces of the three-way valves are communicated. The first mode regulating valve 72 and the second mode regulating valve 71 are in the mode 3, and the a-b, d-e and g-h interfaces of the mode regulating valves are communicated, so that intermediate media flow through the first cold air core 9, the first warm air core 11, the second cold air core 37 and the second warm air core 35.
The flow of the high and low temperature intermediate medium in this mode is identical to that in the single-body normal cooling mode (i.e., mode one) before the first mode adjustment valve 72 and the second mode adjustment valve 71. After the first mode control valve 72, the low-temperature intermediate medium first flows into the first warm air core 11, cools the downstream intake air of the first air conditioning box module 13, then passes through the first mode control valve 72, flows into the first cold air core 9, cools the upstream intake air of the first air conditioning box module 13, and finally returns to the first mode control valve 72 and flows out. After the second mode adjustment valve 71, the low temperature intermediate medium first flows into the second warm air core 35, cools the downstream intake air of the second air conditioning case module 39, then passes through the second mode adjustment valve 71, flows into the second cool air core 37, cools the upstream intake air of the second air conditioning case module 39, and finally returns to the second mode adjustment valve 71 and flows out.
The first temperature damper 10 in the first air conditioning case module 13 and the second temperature damper 36 in the second air conditioning case module 39 are both in the fully open position. The intake air of the first air conditioning box module 13 sequentially passes through the cooling of the first cold air core 9 and the first warm air core 11, and the intake air of the second air conditioning box module 39 sequentially passes through the cooling of the second cold air core 37 and the second warm air core 35. Because the air inlet of the air conditioner box is cooled twice, the refrigerating power and the efficiency of the system are improved compared with the conventional refrigeration of a single-core body.
Fig. 15 shows a third mode of system operation, a conventional heating (single-chip) mode. The three-way valve 62 and the three-way valve 67 are both in mode 1, and the a-c ports of the three-way valves are communicated. The first mode regulating valve 72 and the second mode regulating valve 71 are both in the mode 2, the b-c interface and the f-g interface of the mode regulating valves are communicated, so that intermediate media flow through the first warm air core 11 and the second warm air core 35, the a-h interface and the d-e interface of the mode regulating valves are disconnected, and no intermediate media flow through the first cold air core 9 and the second cold air core 37.
The low-temperature intermediate medium in the intermediate medium cooler 58 passes through the cold side medium pump 79 and the cold side liquid inlet three-way valve 78, and then flows to the liquid inlet three-way valve 62. The low temperature intermediate medium absorbs heat from the ambient air in the radiator 55 through the flow regulating valve 77 in the fully open position, and then sequentially passes through the expansion kettle 76, the return three-way valve 67, the cold side return three-way 66, and returns to the intermediate medium cooler 58. The fan assembly 56 may be turned on as needed to ensure ambient air flow through the radiator 55.
After passing through the hot side medium pump 63, the electric heater 65, and the hot side liquid inlet tee 64, the high temperature intermediate medium in the intermediate medium heater 61 flows all the way to the hot side liquid inlet distribution manifold 69 and branches, and then flows into the first mode control valve 72 and the second mode control valve 71, respectively. In this mode the electric heater 65 may be turned on to supplement heat to the high temperature intermediate medium according to system requirements. The high temperature intermediate medium of the first branch flows into the first warm air core 11 to heat the air intake of the first air conditioning box module 13, then flows into the hot side liquid return distribution manifold 70 from the return first mode adjusting valve 72, and the high temperature intermediate medium of the second branch flows into the second warm air core 35 to heat the air intake of the second air conditioning box module 39, then flows into the second mode adjusting valve 71, and then flows into the hot side liquid return distribution manifold 70. The multiple intermediate media are collected in a hot side return distribution manifold 70 and exit through a hot side return tee 68 to the intermediate media cooler 61.
The first temperature air door 10 in the first air conditioning box module 13 and the second temperature air door 36 in the second air conditioning box module 39 are all positioned at the full open position, and the air intake passes through the first warm air core 11 and the second warm air core 35 and is heated, so that the conventional heating function is realized.
Figure 16 shows a fourth mode of system operation, maximum heating/defrost (two cores in series) mode. The three-way valve 62 and the three-way valve 67 are both in mode 1, and the a-c ports of the three-way valves are communicated. The first mode regulating valve 72 and the second mode regulating valve 71 are in the mode 5, and the b-c, e-f and g-h interfaces of the mode regulating valves are communicated, so that intermediate media flow through the first cold air core 9, the first warm air core 11, the second cold air core 37 and the second warm air core 35.
The flow of the high and low temperature intermediate medium in this mode is identical to that in the single-body conventional heating mode (i.e., mode three) before the first mode adjustment valve 72 and the second mode adjustment valve 71. After the first mode control valve 72, the high temperature intermediate medium first flows into the first warm air core 11, heats the downstream intake air of the first air conditioning box module 13, then passes through the first mode control valve 72, flows into the first cold air core 9, heats the upstream intake air of the first air conditioning box module 13, and finally returns to the first mode control valve 72 and flows out. After the second mode control valve 71, the high temperature intermediate medium first flows into the second warm air core 35 to heat the downstream intake air of the second air conditioning case module 39, then flows through the second mode control valve 71, flows into the second cool air core 37 again to heat the upstream intake air of the second air conditioning case module 39, and finally returns to the second mode control valve 71 and flows out.
The first temperature damper 10 in the first air conditioning case module 13 and the second temperature damper 36 in the second air conditioning case module 39 are both in the fully open position. The intake air of the first air conditioning box module 13 sequentially passes through the heating of the first cold air core 9 and the first warm air core 11, and the intake air of the second air conditioning box module 39 sequentially passes through the heating of the second cold air core 37 and the second warm air core 35. Because the air inlet of the air conditioner box is heated twice, the heating power and efficiency of the system are improved compared with the mode III, namely the conventional heating (single-core body).
Fig. 17 shows a fifth mode of system operation, a cooling and dehumidifying mode. The three-way valve 62 and the three-way valve 67 are both in mode 2, and the b-c interfaces of the three-way valves are communicated. The first mode regulating valve 72 and the second mode regulating valve 71 are in the mode 1, and the a-h, b-c, d-e and f-g interfaces of the mode regulating valves are communicated, so that intermediate media flow through the first cold air core 9, the first warm air core 11, the second cold air core 37 and the second warm air core 35.
The flow of the low-temperature intermediate medium in the mode is identical to that of the single-body normal refrigeration mode (namely mode one), and the low-temperature intermediate medium flows into the first cold air core 9 and the second cold air core 37 respectively through the first mode regulating valve 72 and the second mode regulating valve 71 to cool the upstream air intake of the first air conditioning box module 13 and the second air conditioning box module 39.
After passing through the hot side medium pump 63, the electric heater 65 and the hot side liquid inlet tee 64, the high temperature intermediate medium in the intermediate medium heater 61 is divided into two branches, wherein the first branch flows to the hot side liquid inlet distribution manifold 69, flows into the first warm air core 11 and the second warm air core 35 respectively through the first mode regulating valve 72 and the second mode regulating valve 71, heats the downstream air inlet of the first air conditioning box module 13 and the second air conditioning box module 39, returns to the two mode regulating valves, enters the hot side liquid return distribution manifold 70 and flows into the hot side liquid return tee 68. The second branch flows to the inlet three-way valve 62, dissipates heat from ambient air in the radiator 55 through the flow regulating valve 77, and then flows into the hot side return three-way 68 through the expansion kettle 76 and the return three-way valve 67 in sequence. The two media are collected in the hot side return tee 68 and flow out to the intermediate media cooler 61. The fan assembly 56 may be turned on as needed to ensure ambient air flow through the radiator 55.
In this mode the electric heater 65 is not operated. The flow rate adjusting valve 77 adjusts the flow rate of the high-temperature intermediate medium flowing through the radiator 55 by changing its own path according to the system demand, thereby adjusting the heating power of the first and second heater cores 11 and 35.
The first temperature air door 10 in the first air conditioning box module 13 and the second temperature air door 36 in the second air conditioning box module 39 are positioned at a certain middle position according to the air outlet temperature requirement of the system, the air inlet in the two air conditioning box modules respectively passes through the first cold air core 9 and the second cold air core 37 and is cooled, the humidity is reduced, and then respectively passes through the first warm air core 11 and the second warm air core 35 and is heated, and the temperature is raised to the system requirement. In the mode, the refrigerating power of the cold air core is obviously higher than the heating power of the warm air core, and the air outlet temperature is lower than the air inlet temperature, so that the refrigerating and dehumidifying functions are realized.
FIG. 18 shows a system operation mode six, heating and dehumidifying mode. The three-way valve 62 and the three-way valve 67 are both in mode 1, and the a-c ports of the three-way valves are communicated. The first mode regulating valve 72 and the second mode regulating valve 71 are in the mode 1, and the a-h, b-c, d-e and f-g interfaces of the mode regulating valves are communicated, so that intermediate media flow through the first cold air core 9, the first warm air core 11, the second cold air core 37 and the second warm air core 35.
The flow of the high-temperature intermediate medium in the mode is completely the same as that of the single-core conventional heating mode (namely, mode three), and the high-temperature intermediate medium flows into the first warm air core 11 and the second warm air core 35 respectively through the first mode regulating valve 72 and the second mode regulating valve 71 to heat the downstream air intake of the first air conditioning case module 13 and the second air conditioning case module 39.
The low-temperature intermediate medium in the intermediate medium cooler 58 is divided into two branches after passing through the cold side medium pump 79 and the cold side liquid inlet tee 78, wherein the first branch flows to the cold side liquid distribution manifold 75, then flows into the first cold air core 9 and the second cold air core 37 through the first mode regulating valve 72 and the second mode regulating valve 71 respectively, cools the upstream air inlet of the first air conditioning box module 13 and the second air conditioning box module 39, returns to the two mode regulating valves, enters the cold side liquid return distribution manifold 74 and flows into the cold side liquid return tee 66. The second branch flows to the inlet three-way valve 62, through the flow regulating valve 77, absorbs ambient air heat in the radiator 55, and then sequentially passes through the expansion kettle 76, the return three-way valve 67, and flows into the cold-side return three-way 66. The two-way medium merges in the cold side return tee 66 and exits back into the intermediate medium cooler 58. The fan assembly 56 may be turned on as needed to ensure ambient air flow through the radiator 55.
In this mode the electric heater 65 may be turned on to supplement heat to the high temperature intermediate medium according to system requirements. The flow rate adjusting valve 77 adjusts the flow rate of the low-temperature intermediate medium flowing through the radiator 55 by changing its own path according to the system demand, thereby adjusting the cooling power of the first cooling air core 9 and the second cooling air core 37.
The first temperature air door 10 in the first air conditioning box module 13 and the second temperature air door 36 in the second air conditioning box module 39 are in the fully opened positions, the air inlet in the two air conditioning box modules respectively passes through the first cold air core 9 and the second cold air core 37 and is cooled, the humidity is reduced, and then respectively passes through the first warm air core 11 and the second warm air core 35 and is heated, and the temperature is raised back to the system requirement. In the mode, the refrigerating power of the cold air core is obviously lower than the heating power of the warm air core, and the air outlet temperature is higher than the air inlet temperature, so that the heating and dehumidifying functions are realized.
FIG. 19 shows a seventh mode of system operation, demisting mode. The three-way valve 62 and the three-way valve 67 are in mode 3, and all interfaces of the three-way valves are not communicated. The first mode regulating valve 72 and the second mode regulating valve 71 are in the mode 1, and the a-h, b-c, d-e and f-g interfaces of the mode regulating valves are communicated, so that intermediate media flow through the first cold air core 9, the first warm air core 11, the second cold air core 37 and the second warm air core 35.
The flow of the low-temperature intermediate medium in the mode is identical to that of the single-body normal refrigeration mode (namely, the system working mode I), and the low-temperature intermediate medium flows into the first cold air core 9 and the second cold air core 37 respectively through the first mode regulating valve 72 and the second mode regulating valve 71 to cool the upstream air inflow of the first air conditioning box module 13 and the second air conditioning box module 39. The flow of the high-temperature intermediate medium is completely the same as that of the single-core conventional heating mode (namely, the system working mode III), and the high-temperature intermediate medium flows into the first warm air core 11 and the second warm air core 35 respectively through the first mode regulating valve 72 and the second mode regulating valve 71 to heat the downstream air intake of the first air conditioning box module 13 and the second air conditioning box module 39. No intermediate medium flows through the front end cooling module 54 and the fan assembly 56 is not operating.
The first temperature air door 10 in the first air conditioning box module 13 and the second temperature air door 36 in the second air conditioning box module 39 are in the fully opened positions, the air inlet in the two air conditioning box modules respectively passes through the first cold air core 9 and the second cold air core 37 and is cooled, the humidity is reduced, and then respectively passes through the first warm air core 11 and the second warm air core 35 and is heated, and the temperature is raised. In the mode, the heating power of the warm air core is equal to the sum of the refrigerating power of the cold air core and the work done by the compressor on the refrigerant, the air outlet temperature is slightly higher than the air inlet temperature, and the relative humidity is obviously reduced compared with the air inlet temperature.
In the air distribution module 16 of the distributed air conditioning assembly, the first defrosting air door 22 and the second defrosting air door 30 of the first air distribution sub-module 24 and the second air distribution sub-module 32 are opened to guide the air outlet to the front window and the side window glass, thereby realizing the defogging function.
Fig. 20 shows the system operation mode eight, zone control (dual temperature zone). The modes of the liquid inlet three-way valve 62 and the liquid return three-way valve 67 are determined by the working conditions of the system, and the modes 1-3 can be switched. The first mode regulating valve 72 and the second mode regulating valve 71 are in the mode 1, and the a-h, b-c, d-e and f-g interfaces of the mode regulating valves are communicated.
The low-temperature intermediate medium flows into the first cold air core 9 and the second cold air core 37 through the first mode adjusting valve 72 and the second mode adjusting valve 71, respectively, and cools the upstream intake air of the first air conditioning box module 13 and the second air conditioning box module 39. The high-temperature intermediate medium flows into the first and second heater cores 11 and 35 through the first and second mode adjustment valves 72 and 71, respectively, and heats the downstream intake air of the first and second air conditioning case modules 13 and 39. The first temperature air door 10 in the first air conditioning box module 13 and the second temperature air door 36 in the second air conditioning box module 39 are positioned at different intermediate positions according to control signals, so that the air flow which is led into the first warm air core 11 and the second warm air core 35 and heated is different, and further different air outlet temperatures are generated after mixing, and the zonal temperature control effect of the double-temperature-zone air conditioner is achieved.
Based on the heat distribution condition of the whole system, the liquid inlet three-way valve 62 and the liquid return three-way valve 67 are in modes 1-3. Specifically, if the air conditioning assembly has an obvious heating function on the whole, the heat pump air conditioning system needs to absorb heat from the outside, at the moment, the liquid inlet three-way valve 62 and the liquid return three-way valve 67 are in a mode 1, the a-c interfaces of the three-way valves are communicated, and the low-temperature intermediate medium branches out of a part of flow rate at the cold side liquid inlet three-way valve 78 to enter the radiator 55, and returns to the intermediate medium cooler 58 after absorbing the heat of the ambient air. If the air conditioning assembly has a refrigerating function as a whole, the heat pump air conditioning system needs to release heat to the outside, at the moment, the liquid inlet three-way valve 62 and the liquid return three-way valve 67 are in a mode 2, the b-c interfaces of the three-way valves are communicated, and the high-temperature intermediate medium branches off from the hot side liquid inlet three-way valve 64 to a part of flow into the radiator 55, releases heat to the ambient air and returns to the intermediate medium heater 61. If the air conditioning assembly has a heating function as a whole, but the heating power can be satisfied by the compression work of the compressor without heat exchange between the system and the external environment, the liquid inlet three-way valve 62 and the liquid return three-way valve 67 are in the mode 3, and no medium in high and low temperature enters the radiator 55. The flow control valve 77 controls the flow of medium to the branching portion, and the fan assembly 56 may be turned on as needed.
Figure 21 shows the system operation mode nine, partition control (total cooling and total heating). This is the limit state of the zone control, the first air conditioning case module 13 is in a fully cold state and the second air conditioning case module 39 is in a fully hot state.
The modes of the liquid inlet three-way valve 62 and the liquid return three-way valve 67 are determined by the working conditions of the system, and the modes 1-3 can be switched. The first mode adjustment valve 72 is in mode 3 and the first temperature damper 10 is in the fully open position such that the first air conditioning case module 13 is in the maximum cooling mode with two cores in series, and the second mode adjustment valve 71 is in mode 5 and the second temperature damper 36 is in the fully open position such that the second air conditioning case module 39 is in the maximum heating mode with two cores in series.
Similar to the double temperature zone control (i.e., system operation mode eight), the inlet three-way valve 62 and the return three-way valve 67 are selected from modes 1-3 based on the heat distribution of the whole system.
Figure 22 shows a system operating mode ten for deicing. When the radiator is in a heating working condition for a long time and the ambient humidity is high, icing can occur on the surface of the radiator, and heat exchange is affected. This mode is entered at this time. The three-way valve 62 and the three-way valve 67 are both in mode 2, and the b-c interfaces of the three-way valves are communicated. The first mode regulating valve 72 and the second mode regulating valve 71 are in the mode 1, and the a-h, b-c, d-e and f-g interfaces of the mode regulating valves are communicated, so that intermediate media flow through the first cold air core 9, the first warm air core 11, the second cold air core 37 and the second warm air core 35.
The flow mode of the intermediate medium is completely the same as that of the refrigeration and dehumidification mode (namely, the system working mode five), and a part of high-temperature intermediate medium flows into the radiator 55 through the liquid inlet three-way valve 62 and the flow regulating valve 77. At this time, the fan assembly 56 is not turned on, and the air volume flowing through the radiator is small, so most of the heat emitted by the high-temperature medium is absorbed by the ice on the surface of the radiator 55, and the ice is melted. The electric heater 65 is operable in this mode to raise the medium temperature and accelerate the ice-making speed.
The first temperature air door 10 and the second temperature air door 36 are in the fully opened positions, and the first air blower 8 and the second air blower 38 are operated at low speed, so that the ice melting working condition is ensured not to obviously influence the temperature of the passenger cabin.
Note that the above is only a preferred embodiment of the present invention and the technical principle applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, and that various obvious changes, modifications and substitutions may be made therein without departing from the scope of the invention. Therefore, while the invention has been described in connection with the above embodiments, the invention is not limited to the above embodiments, but may be embodied in many other equivalent forms without departing from the spirit of the invention, the scope of which is set forth in the appended claims.

Claims (11)

1. An indirect heat pump air conditioning system, comprising:
a distributed air conditioning assembly;
a water pump valve block module (73) connected to the distributed air conditioning assembly and delivering an intermediate medium to the distributed air conditioning assembly;
A heating and cooling module (57) connected to the water pump valve group module (73) and exchanging heat with the intermediate medium in the water pump valve group module (73), and
-A front-end cooling module (54) connected to the water pump valve block module (73), the front-end cooling module (54) being configured to enable heat exchange of the intermediate medium within the water pump valve block module (73) with air;
The water pump valve group module (73) comprises a hot side liquid return distribution multi-way (69), a hot side liquid return distribution multi-way (70), a cold side liquid return distribution multi-way (74), a cold side liquid return distribution multi-way (75), a first mode regulating valve (72) and a second mode regulating valve (71), wherein the hot side liquid return distribution multi-way (69), the hot side liquid return distribution multi-way (70), the cold side liquid return distribution multi-way (74) and the cold side liquid return distribution multi-way (75) are respectively connected to the distributed air regulating assembly through the first mode regulating valve (72) and the second mode regulating valve (71), the hot side liquid return distribution multi-way (70) is connected to a hot side liquid return tee (68), the hot side liquid return tee (68) is respectively connected to a hot side medium pump (63) and a liquid return tee (67), the hot side medium pump (63) is respectively connected to a hot side liquid inlet tee (64) through an electric heater (65), the side liquid inlet tee (64) is respectively connected to the cold side three-way valve (62) and the cold side liquid return three-way valve (62) is respectively connected to the cold side three-way valve (77), the medium flow rate of the cold side three-way valve (62) is respectively connected to the medium three-way valve (77), the cold side liquid inlet tee joint (78) is respectively connected with the cold side medium pump (79) and the cold side liquid inlet distribution multi-way (75), the cold side medium pump (79) is connected to the cold side liquid return tee joint (66), the cold side liquid return tee joint (66) is respectively connected to the liquid return tee joint valve (67) and the cold side liquid return distribution multi-way (74), and a third end of the liquid return tee joint valve (67) is connected to the front end cooling module (54).
2. An indirect heat pump air conditioning system according to claim 1, characterized in that the heating and refrigerating module (57) comprises an electric compressor (60), an intermediate medium heater (61), an electronic expansion valve (59) and an intermediate medium cooler (58) which are connected in sequence, the pipeline between the hot side medium pump (63) and the hot side return tee (68) being connected to the intermediate medium heater (61) for heat exchange, the pipeline between the cold side return tee (66) and the cold side medium pump (79) being connected to the intermediate medium cooler (58) for heat exchange.
3. An indirect heat pump air conditioning system according to claim 2, characterized in that the front-end cooling module (54) comprises a radiator (55), a fan assembly (56) and an expansion kettle (76) for exhausting air in an intermediate medium, the radiator (55) being arranged in the blowing range of the fan assembly (56), the expansion kettle (76) being connected to the return three-way valve (67) at one end and to the radiator (55) at the other end, the radiator (55) being connected to the flow regulating valve (77).
4. The indirect heat pump air conditioning system according to claim 1, characterized in that the first mode control valve (72) and the second mode control valve (71) are of integrated design, the first mode control valve (72) and the second mode control valve (71) respectively comprise a valve body (80), a valve core (81) and an intermediate medium interface (82), eight intermediate medium interfaces (82) are arranged on the valve body (80), the eight intermediate medium interfaces (82) are numbered a-h in sequence, an internal flow passage is arranged on the valve core (81) and used for communicating the designated intermediate medium interfaces (82) in each mode, five working modes are respectively provided for the first mode control valve (72) and the second mode control valve (71) according to the difference of the positions of the valve core (81), the valve core (81) is in an intermediate position, a-h, b-c, d-e, g-f of the intermediate medium interfaces (82) are respectively communicated, the rest interfaces are not communicated, 2 are respectively communicated in the rest interfaces, the valve core (81) is rotated in a-h, b-c, d-f of the intermediate medium interfaces (82) are respectively communicated in a-d-c, and d-f of the intermediate medium interfaces (2) are respectively rotated in a-h, c-c, d-f, and d-f of the intermediate medium interfaces are respectively g-h are respectively communicated, other interfaces are not communicated, the valve core (81) rotates anticlockwise at the position of the mode 1 for a certain angle, a-h and d-e of the intermediate medium interface (82) are communicated, the other interfaces are not communicated, the valve core (81) continues to rotate anticlockwise at the position of the mode 4 for a certain angle, b-c, e-f and g-h of the intermediate medium interface (82) are respectively communicated, and the other interfaces are not communicated.
5. The indirect heat pump air conditioning system of claim 1, wherein the distributed air conditioning assembly comprises:
The air inlet module (1) comprises an air inlet shell (6), a filter (5) arranged on an air inlet of the air inlet shell (6) and a fresh air/circulating air door (3) arranged on the outer side of the air inlet shell (6), wherein a fresh air port (2) is formed between the fresh air/circulating air door (3) and the air inlet of the air inlet shell (6) when the fresh air/circulating air door (3) is positioned at a first position, and a circulating air port (4) is formed between the fresh air/circulating air door (3) and the air inlet of the air inlet shell (6) when the fresh air/circulating air door is positioned at a second position;
The air conditioning box module (14) at least comprises a first air conditioning box module (13), the first air conditioning box module (13) comprises a first air conditioning box shell (12), an air inlet of the first air conditioning box shell (12) is connected to an air outlet of the air inlet shell (6), a first air blower (8), a first cold air core (9), a first temperature air door (10) and a first warm air core (11) are sequentially arranged in the first air conditioning box shell (12) along the air flow direction, and
The air distribution module (16) at least comprises a first air distribution sub-module (24), the first air distribution sub-module (24) comprises a first air distribution shell (17), an air inlet of the first air distribution shell (17) is connected to an air outlet of the first air conditioning box shell (12), a first air blowing surface air inlet (19), a first air blowing foot air inlet (21) and a first defrosting air inlet (23) which are mutually independent are formed in the first air distribution shell (17), a first air blowing surface air door (18) for controlling the opening and the closing of the first air blowing surface air inlet (19) is arranged, a first air blowing foot air door (20) for controlling the opening and the closing of the first air blowing foot air inlet (21) is arranged on the first defrosting air inlet (23), and a first defrosting air door (22) for controlling the opening and the closing of the first air blowing foot air inlet (23) is arranged on the first defrosting air inlet.
6. The indirect heat pump air conditioning system according to claim 5, wherein the air conditioning box module (14) further comprises a second air conditioning box module (39), the second air conditioning box module (39) comprises a second air conditioning box housing (34), an air inlet of the second air conditioning box housing (34) is connected to another air outlet of the air inlet housing (6), and a second blower (38), a second cold air core (37), a second temperature air door (36) and a second warm air core (35) are sequentially arranged in the second air conditioning box housing (34) along the air flow direction.
7. The indirect heat pump air conditioning system according to claim 6, wherein the air distribution module (16) further comprises a second air distribution sub-module (32), the second air distribution sub-module (32) comprises a second air distribution shell (31), an air inlet of the second air distribution shell (31) is connected to an air outlet of the second air conditioning box shell (34), a second air blowing surface air port (25), a second air blowing foot air port (27) and a second defrosting air port (29) which are mutually independent are formed in the second air distribution shell (31), a second air blowing surface air port (26) for controlling the opening and closing of the second air blowing surface air port is arranged on the second air blowing foot air port (25), a second air blowing foot air port (28) for controlling the opening and closing of the second air blowing foot air port is arranged on the second air blowing foot air port (27), and a second defrosting air port (30) for controlling the opening and closing of the second defrosting air port (29) is arranged on the second air blowing foot air port.
8. Vehicle comprising a vehicle body, the front side of which is provided with a firewall (42), the front cabin (41) of which is located in front of the firewall (42) and the passenger cabin (43) of which is located at the rear of the firewall (42) in the vehicle body, characterized by further comprising an indirect heat pump air conditioning system according to any one of claims 5 to 7, the air intake module (1) and the air conditioning box module (14) being arranged in the front cabin (41), the air distribution module (16) being located in the passenger cabin (43).
9. The vehicle of claim 8, characterized in that the distributed air conditioning assembly comprises a first air distribution sub-module (24) and a second air distribution sub-module (32), one of the first air distribution sub-module (24) and the second air distribution sub-module (32) being a primary drive seat (44) and a peripheral zone air supply, the other of the two being a secondary drive seat (45) and a peripheral zone air supply.
10. The vehicle according to claim 9, characterized in that a set of distributed air conditioning assemblies is further provided at the parking space of the vehicle body, the distributed air conditioning assemblies comprising a rear air intake module (49), a rear air conditioning box module (48) and two rear air distribution modules (47), the two rear air distribution modules (47) respectively supplying air to the left and right seats and the surrounding area of the rear seat (46).
11. A control method of an indirect heat pump air conditioning system based on the indirect heat pump air conditioning system according to claim 3, characterized in that the control method comprises:
In a normal refrigeration mode, the first mode regulating valve (72) is communicated with the a-h interface, the d-e interface and the b-c interface and the g-f interface of the second mode regulating valve (71) are disconnected, low-temperature intermediate medium in the intermediate medium cooler (58) passes through a cold side medium pump (79) and a cold side liquid inlet tee joint (78) and then all enters a cold side liquid distribution multi-way (75), the low-temperature intermediate medium respectively flows into the first mode regulating valve (72) and the second mode regulating valve (71) after passing through the cold side liquid inlet multi-way (75), the low-temperature intermediate medium of the first branch flows into a first cold air core (9), the low-temperature intermediate medium of the first air conditioning box module (13) is cooled and then flows into the cold side liquid return multi-way (74) from the first mode regulating valve (72), the low-temperature intermediate medium of the second branch flows into the second cold side liquid inlet core (37), the air inlet multi-way valve (71) of the second air conditioning box module (39) is cooled, the low-temperature intermediate medium flows into the cold side liquid return multi-way (74), the low-temperature intermediate medium flows into the cold side liquid return multi-way (66) after passing through the cold side liquid return valve (58), and then flows out of the intermediate medium through the three-way valve (61) of the intermediate medium cooler (63), the high-temperature intermediate medium enters the radiator (55) through the flow regulating valve (77), dissipates heat to ambient air in the radiator (55), and then returns to the intermediate medium heater (61) through the expansion kettle (76), the liquid return three-way valve (67) and the hot side liquid return three-way valve (68) in sequence, wherein the first temperature air door (10) and the second temperature air door (36) are positioned at the fully closed positions;
The maximum refrigeration mode is that the inlet three-way valve (62) and the return three-way valve (67) are communicated with each other through a b-c interface, the first mode regulating valve (72) and the second mode regulating valve (71) are communicated with each other through an a-b interface, a d-e interface and a g-h interface, a low-temperature intermediate medium in the intermediate medium cooler (58) passes through a cold side medium pump (79) and a cold side inlet three-way (78) and then all enters a cold side liquid distribution multi-way (75), the low-temperature intermediate medium passes through the cold side liquid distribution multi-way (75) and then flows into a first mode regulating valve (72) and a second mode regulating valve (71) respectively, the high-temperature intermediate medium in the intermediate medium heater (61) passes through a hot side medium pump (63), an electric heater (65) and a hot side inlet three-way (64) and then all flows to the inlet three-way valve (62), the high-temperature intermediate medium passes through a flow regulating valve (77) and then enters a radiator (55) to cool side liquid distribution multi-way (75) after passing through a cold side medium pump (79) and a cold side liquid inlet three-way (78), the low-way valve (7) and then flows into a first cold air return medium (11) through a first mode regulating valve (72) and a third medium heater (61), the low-temperature intermediate medium in the second mode regulating valve (71) flows into the second warm air core (35), then flows into the second cold air core (37) through the second mode regulating valve (71), then returns to the second mode regulating valve (71) and flows out, the first temperature air door (10) and the second temperature air door (36) are both positioned at the full open position, the air inlet of the first air conditioning box module (13) sequentially passes through the cooling of the first cold air core (9) and the cooling of the first warm air core (11), and the air inlet of the second air conditioning box module (39) sequentially passes through the cooling of the second cold air core (37) and the cooling of the second warm air core (35);
The three-way valve (62) and the three-way valve (67) are connected through an a-c interface, the first mode regulating valve (72) and the second mode regulating valve (71) are connected through a b-c interface and an f-g interface, the a-h interface and the d-e interface are disconnected, low-temperature medium in the medium cooler (58) flows to the three-way valve (62) after passing through a cold side medium pump (79) and a cold side liquid inlet tee (78), the low-temperature medium flows to the three-way valve (62) after passing through a flow regulating valve (77) at a full open position, absorbs heat from ambient air in a radiator (55) and then returns to the medium cooler (58) after passing through an expansion kettle (76), the three-way valve (67) and the three-way valve (66), high-temperature medium in the medium heater (61) flows to a multi-way valve (69) after passing through a hot side medium pump (63), an electric heater (65) and the three-way valve (64) and flows to a first multi-way valve (70) after passing through a hot side medium distribution valve (70), the high-temperature medium flows to a second multi-way valve (70) after passing through a first multi-way valve (35), then the air enters a hot side liquid return distribution multi-way (70) through the second mode regulating valve (71), multiple paths of intermediate mediums are converged in the hot side liquid return distribution multi-way (70) and flow out, the intermediate mediums return to the intermediate medium cooler (61) through the hot side liquid return tee joint (68), the first temperature air door (10) and the second temperature air door (36) are positioned at full open positions, and air inlet passes through the first warm air core (11) and the second warm air core (35) respectively and is heated;
The maximum heating/defrosting mode is realized by the three-way valve (62) and the three-way valve (67) being communicated with each other through an interface a-c, the first mode regulating valve (72) and the second mode regulating valve (71) being communicated with each other through interfaces b-c, e-f and g-h, the low temperature intermediate medium in the intermediate medium cooler (58) passing through the cold side medium pump (79) and the cold side liquid inlet tee (78) and then all flowing to the three-way valve (62), the low temperature intermediate medium passing through the flow regulating valve (77) at the full open position, absorbing heat from the ambient air in the radiator (55) and then sequentially passing through the expansion kettle (76), the three-way valve (67) and the cold side liquid return tee (66) and then returning to the intermediate medium cooler (58), the high temperature intermediate medium in the intermediate medium heater (61) passing through the hot side medium pump (63), the electric heater (65) and the hot side liquid inlet (64) and then all flowing to the three-way valve (69) after passing through the cold side medium pump and the cold side liquid inlet tee (78), the low temperature intermediate medium passing through the flow regulating valve (77) at the full open position, the cold side liquid inlet valve (72) and then flowing into the first air inlet valve (72) in the first mode (72), and then the high-temperature medium in the second mode regulating valve (71) flows into the second warm air core (35), then flows into the second cold air core (37) through the second mode regulating valve (71), and then returns to the second mode regulating valve (71) and flows out, wherein the first temperature air door (10) and the second temperature air door (36) are both positioned at the full open position;
The refrigerating and dehumidifying mode is characterized in that the inlet three-way valve (62) and the return three-way valve (67) are respectively communicated with a b-c interface, the first mode regulating valve (72) and the second mode regulating valve (71) are respectively communicated with an a-h interface, a b-c interface, a d-e interface and a f-g interface, a low-temperature intermediate medium in the intermediate medium cooler (58) completely enters a cold side liquid inlet distribution multi-way (75) after passing through a cold side medium pump (79) and a cold side liquid inlet three-way (78), the low-temperature intermediate medium respectively flows into a first mode regulating valve (72) and a second mode regulating valve (71) after passing through the cold side liquid inlet distribution multi-way (75), the low-temperature intermediate medium respectively flows into the first cold air core (9) and the second cold air core (37) through the first mode regulating valve (72) and the second mode regulating valve (71), the high-temperature intermediate medium in the intermediate medium heater (61) respectively flows into the first cold air core (9) and the second air core (37) through the first cold side medium pump (63), the electric heater (65) and the side liquid inlet three-way (78) respectively, the low-temperature intermediate medium respectively flows into the first mode regulating valve (72) and the second air inlet three-way (71) respectively, and then flows into the first mode regulating valve (71) through the second air inlet three-way valve (11) respectively, the first mode regulating valve (72) and the second mode regulating valve (71) are respectively connected with a hot side liquid return distribution multi-way valve (70), and flow into a hot side liquid return tee joint (68), a second branch flows into a liquid inlet three-way valve (62), radiates ambient air in a radiator (55) after passing through a flow regulating valve (77), then flows into the hot side liquid return tee joint (68) through an expansion kettle (76) and a liquid return three-way valve (67), two paths of media are converged in the hot side liquid return three-way valve (68) and flow out, and return to the medium cooler (61), the flow of the high-temperature medium flowing through the radiator (55) is regulated to a set value by the flow regulating valve (77), a first temperature air door (10) and a second temperature air door (36) are opened to set positions according to the air outlet temperature requirements of the system, and air inlet is respectively cooled through a first cold air core (9) and a second cold air core (37) and then heated through the first warm air core (11) and the second warm air core (35);
The heating and dehumidifying mode is characterized in that the inlet three-way valve (62) is communicated with an a-c interface of the return three-way valve (67), the first mode regulating valve (72) is communicated with an a-h interface, a b-c interface, a d-e interface and an f-g interface of the second mode regulating valve (71), a high-temperature intermediate medium in the intermediate medium heater (61) flows to a hot side liquid inlet distribution multi-way (69) through a hot side medium pump (63), an electric heater (65) and a hot side liquid inlet three-way (64) and branches after passing through the hot side medium pump, flows into the first mode regulating valve (72) and the second mode regulating valve (71) respectively, the high-temperature intermediate medium flows into the first warm air core (11) and the second warm air core (35) through the first mode regulating valve (72) and the second mode regulating valve (71) respectively, the low-temperature intermediate medium in the intermediate medium cooler (58) is divided into two branches after passing through a cold side medium pump (79) and a cold side liquid inlet three-way (78), the first branch flows to the multi-way liquid distribution multi-way (69) and flows into the first cold side liquid distribution multi-way valve (72) and the second mode regulating valve (71) respectively, and then flows into the cold air core (37) through the first mode regulating valve (72) and the second mode regulating valve (71), the air-cooling type air conditioner is characterized by further comprising a cold-side liquid return tee joint (66), a second branch flow inlet three-way valve (62), an expansion kettle (76) and a liquid return three-way valve (67), a medium return medium cooler (58), a flow regulating valve (77) and a first temperature air door (10) and a second temperature air door (36) which are all in the fully-opened positions, wherein the air-cooling type air conditioner absorbs ambient air heat in a radiator (55) after passing through a flow regulating valve (77), then flows into the cold-side liquid return three-way valve (66) through the expansion kettle (76) and the liquid return three-way valve (67), the two mediums are converged in the cold-side liquid return three-way valve (66) and flow out of the cold-side liquid return three-way valve, the medium is returned to the medium cooler (58), the flow of the high-temperature medium through the radiator (55) is regulated to a set value by the flow regulating valve (77), the air-cooling type air conditioner is cooled and the humidity of the air is reduced by a first cold air core (9) and a second cold air core (37), and a second warm air core (35), respectively, and the air is heated by the first warm air core (11) and the air core, and the air is respectively;
The system comprises a demisting mode, all interfaces of the liquid inlet three-way valve (62) and the liquid return three-way valve (67) are not communicated, the interfaces a-h, b-c, d-e and f-g of the first mode regulating valve (72) and the second mode regulating valve (71) are communicated, low-temperature intermediate media in the intermediate medium cooler (58) pass through a cold side medium pump (79) and a cold side liquid inlet three-way valve (78) and then all enter a cold side liquid distribution multi-way valve (75), the low-temperature intermediate media pass through the cold side liquid inlet distribution multi-way valve (75) and then flow into a first mode regulating valve (72) and a second mode regulating valve (71) respectively, the low-temperature intermediate media pass through the first mode regulating valve (72) and the second mode regulating valve (71) and then flow into a first cold air core (9) and a second cold air core (37) respectively, multi-way intermediate media pass through the first mode regulating valve (72) and the second mode regulating valve (71) and then all enter the cold side liquid return distribution multi-way valve (74) and flow into the heat exchanger (64) and then all the intermediate media flow into the heat exchanger (64) and then flow into the heat exchanger (64) through the high-side three-way valve (64) after passing through the first mode regulating valve (72) and the intermediate medium cooling three-way valve (64), the air flows into the first mode regulating valve (72) and the second mode regulating valve (71) respectively, then flows into the first warm air core (11) and the second warm air core (35) respectively, the first temperature air door (10) and the second temperature air door (36) are both in the full-open position, the air inlet is cooled and the humidity is reduced through the first cold air core (9) and the second cold air core (37) respectively, then is heated through the first warm air core (11) and the second warm air core (35) respectively, and the first defrosting air door (22) and the second defrosting air door (30) in the first air distribution sub-module (24) and the second air distribution sub-module (32) are both opened;
the dual temperature zone control is carried out, the interfaces of a-h, b-c, d-e and f-g of the first mode regulating valve (72) and the second mode regulating valve (71) are communicated, low temperature intermediate medium flows into the first cold air core (9) and the second cold air core (37) through the first mode regulating valve (72) and the second mode regulating valve (71) respectively, high temperature intermediate medium flows into the first warm air core (11) and the second warm air core (35) through the first mode regulating valve (72) and the second mode regulating valve (71) respectively, the first temperature air door (10) and the second temperature air door (36) are opened to set angles, so that the flow rates of the heated air which is led into the first warm air core (11) and the second warm air core (35) are different, different air outlet temperatures are generated after the low temperature intermediate medium is mixed, when a heating function is carried out, the inlet three-way valve (62) and the three-way valve (67) a-c interface of the high temperature intermediate medium flows into the first warm air core (11) and the second warm air core (35) respectively, the low temperature air door (10) and the second temperature air door (36) are communicated, when the intermediate medium is led into the three-way valve (55) at the side of the low temperature intermediate medium is partially, the three-way medium is cooled down, and the medium is cooled down by the three-way medium is partially cooled down by the intermediate medium (55) and the medium (55) respectively, when the heating function is executed and the heating power completely depends on the compression work of the compressor, the interfaces of the liquid inlet three-way valve (62) and the liquid return three-way valve (67) are not communicated, and the high-temperature intermediate medium and the low-temperature intermediate medium do not enter the radiator (55);
The total cooling and total heating partition control is realized, the interfaces a-b, d-e and g-h of the first mode regulating valve (72) are communicated, the first temperature air door (10) is in a full-open position, so that the first air conditioning box module (13) is in a maximum refrigerating mode with two cores connected in series, the interfaces b-c, e-f and g-h of the second mode regulating valve (71) are communicated, the second temperature air door (36) is in a full-open position, so that the second air conditioning box module (39) is in a maximum heating mode with two cores connected in series, and/or,
In the deicing mode, a liquid inlet three-way valve (62) is communicated with a b-c interface of a liquid return three-way valve (67), a first mode regulating valve (72) is communicated with an a-h interface, a b-c interface, a d-e interface and an f-g interface of a second mode regulating valve (71), a low-temperature intermediate medium in an intermediate medium cooler (58) is completely fed into a cold side liquid distribution multi-way valve (75) after passing through a cold side medium pump (79) and a cold side liquid inlet three-way valve (78), the low-temperature intermediate medium respectively flows into a first mode regulating valve (72) and a second mode regulating valve (71) after passing through the cold side liquid inlet multi-way valve (75), the low-temperature intermediate medium respectively flows into a first cold air core (9) and a second cold air core (37) through the first mode regulating valve (72) and the second mode regulating valve (71), a high-temperature intermediate medium in an intermediate medium heater (61) respectively flows into a hot side medium pump (63), an electric heater (65) and a side liquid inlet three-way valve (64) after passing through the cold side liquid inlet three-way valve (69), the low-temperature intermediate medium respectively flows into the first mode regulating valve (72) and the second mode regulating valve (71) respectively, and then flows into the first mode regulating valve (71) and the second mode regulating valve (71), the medium in the first mode regulating valve (72) and the medium in the second mode regulating valve (71) respectively enter a hot side liquid return distribution multi-way (70), flow into a hot side liquid return tee joint (68) after being converged, the second branch flows to a liquid inlet three-way valve (62), ambient air is radiated in a radiator (55) after passing through a flow regulating valve (77), a fan assembly (56) is not started, then flows into the hot side liquid return tee joint (68) through an expansion kettle (76) and a liquid return three-way valve (67) in sequence, the two media are converged and flow out in the hot side liquid return tee joint (68) and return to the medium cooler (61), and the flow of the high-temperature medium flowing through the radiator (55) is regulated to a set value by the flow regulating valve (77).
CN202211048607.8A 2022-08-29 2022-08-29 Distributed air conditioning assembly, vehicle and indirect heat pump air conditioning system Active CN115195406B (en)

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