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WO2018138950A1 - Unité de climatisation - Google Patents

Unité de climatisation Download PDF

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Publication number
WO2018138950A1
WO2018138950A1 PCT/JP2017/030421 JP2017030421W WO2018138950A1 WO 2018138950 A1 WO2018138950 A1 WO 2018138950A1 JP 2017030421 W JP2017030421 W JP 2017030421W WO 2018138950 A1 WO2018138950 A1 WO 2018138950A1
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WO
WIPO (PCT)
Prior art keywords
door
air
air conditioning
case
slide door
Prior art date
Application number
PCT/JP2017/030421
Other languages
English (en)
Japanese (ja)
Inventor
洋一郎 松浦
Original Assignee
株式会社デンソー
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 株式会社デンソー filed Critical 株式会社デンソー
Priority to JP2018564096A priority Critical patent/JP6702441B2/ja
Publication of WO2018138950A1 publication Critical patent/WO2018138950A1/fr

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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

Definitions

  • This disclosure relates to an air conditioning unit for a vehicle that blows air-conditioned air into a vehicle interior.
  • the air conditioning unit described in Patent Document 1 includes a rotary door that rotates in an air conditioning case.
  • the rotary door opens and closes a plurality of air outlets formed in the air conditioning case as the rotary door rotates.
  • the door provided in the air conditioning unit of Patent Document 1 is a rotary door, but depending on the specifications of the air conditioning unit, a sliding door that slides may be provided instead of the rotary door.
  • Some air conditioning units having such a sliding door are provided with an insertion port into which the sliding door is inserted at one end of a door guide portion that guides the movement of the sliding door for structural reasons.
  • the air conditioning unit as a finished product has a structure in which the insertion port of the door guide part is left open in the air conditioning case of the air conditioning unit, a part of the air flowing in the air conditioning case is inserted into the insertion port. There was a possibility that the air that flowed in freely leaked around the sliding door. As a result of detailed studies by the inventor, the above has been found.
  • an object of the present disclosure to provide an air conditioning unit capable of preventing air from flowing through an insertion port of a door guide portion and preventing a slide door from dropping off in an air conditioning unit assembly process.
  • an air conditioning unit includes: An air conditioning unit for a vehicle that blows conditioned air into a passenger compartment, An air conditioning case in which an upstream air passage through which air flows and a downstream air passage through which air flows and is provided downstream of the upstream air passage; A sliding door that opens and closes between the upstream air passage and the downstream air passage by sliding in a predetermined door movement direction in the air conditioning case; A cover member housed in the air conditioning case and fixed to the air conditioning case,
  • the air conditioning case has a door guide part that guides the movement of the sliding door by inserting the sliding door, The door guide portion has one end on one side in the door movement direction, and at one end thereof, an insertion port is formed when the slide door is inserted into the door guide. The insertion port opens to the upstream air passage, The cover member covers the insertion port.
  • the cover member covers the insertion port of the door guide portion, it is possible to prevent air from flowing through the insertion port. Further, even if the slide door tries to come out of the door guide part by its own weight in the assembly process of the air conditioning unit, it can be stopped by the cover member. In short, it is possible to prevent the sliding door from falling off during the assembly process.
  • FIG. 2 is a partial detail view showing an upper air mix door and a configuration around the upper air mix door in the cross-sectional view showing the II-II cross section of FIG. 1.
  • FIG. 3 is a view showing a single upper air mix door shown in FIG. 2 in the same direction as in FIG. 2.
  • FIG. 4 is a partial detailed view showing a cover member and a configuration around the cover member in the cross-sectional view showing the IV-IV cross section of FIG. 2. It is the perspective view which showed the cover member alone in 1st Embodiment, Comprising: It is the figure which looked at the cover member from the evaporator side.
  • FIG. 3 is a cross-sectional view showing a II-II cross section of FIG. 1 in a modification of the first embodiment, corresponding to FIG.
  • FIG. 10 is a cross-sectional view showing the XX cross section of FIG. 9 in the modified example, which corresponds to FIG. 4. It is the figure which showed the state which the upper side air mix door was located in the lower moving end of a slide movement in the same cross section as FIG.
  • the ventilation system of the vehicle air conditioner is roughly divided into two parts, a blower unit (not shown) and the air conditioning unit 10 shown in FIG.
  • the blower unit is arranged offset from the center portion to the passenger seat side in the lower portion of the instrument panel in the passenger compartment.
  • the air conditioning unit 10 is disposed at a substantially central portion in the vehicle left-right direction DR3 in the lower portion of the instrument panel in the vehicle interior.
  • FIG. 1 is a schematic diagram in which the illustration is simplified, and therefore, in FIG. 1, the illustrated shapes of the respective components may be slightly different from those in FIG.
  • each arrow DR1, DR2 of FIG. 1 and arrow DR3 of FIG. 2 show the direction in the vehicle mounting state in which the air conditioning unit 10 is mounted on the vehicle. That is, the double-ended arrow DR1 in FIG. 1 indicates the vehicle longitudinal direction DR1, the double-ended arrow DR2 indicates the vehicle vertical direction DR2, and the double-ended arrow DR3 in FIG. 2 indicates the vehicle left-right direction DR3 (that is, the vehicle width direction DR3).
  • These directions DR1, DR2, and DR3 are directions that intersect with each other, and strictly speaking, are directions that are orthogonal to each other.
  • the blower unit includes an inside / outside air switching box and a blower that sucks air through the inside / outside air switching box and blows air.
  • the inside / outside air switching box is formed with an outside air introduction port for introducing outside air that is air outside the vehicle compartment and an inside air introduction port for introducing inside air that is air inside the vehicle compartment. Both these inlets are opened and closed by an inside / outside air switching door.
  • the inside / outside air switching door is driven by, for example, an electric actuator.
  • the blower unit supplies air sucked from the inside air introduction port or the outside air introduction port to the air conditioning unit 10.
  • the air conditioning unit 10 adjusts the temperature of the air from the blower unit, and blows out the conditioned air, which is the temperature-adjusted air, into the passenger compartment.
  • the air conditioning unit 10 includes an air conditioning case 11, an evaporator 12, a heater core 13, an electric heater 16, a face door 28 as a first slide door, an upper air mix door 18 as a second slide door, and an upper side.
  • the material 42, the lower cushion material 44, and the foot door are accommodated in the air conditioning case 11.
  • the air conditioning case 11 is configured as an outer shell of the air conditioning unit 10, and an air passage in the case through which air flows is formed in the air conditioning case 11.
  • This in-case air passage is the entire air passage formed in the air conditioning case 11, and the in-case air passage includes a plurality of air passages 11a, 11d, 11e, 11g, 11h, 14, 15, 24, 25, 50, 52 are included.
  • the air conditioning case 11 is formed of a resin molded product such as polypropylene, for example. Specifically, the air conditioning case 11 has a plurality of case members 111 and 112. The air conditioning case 11 is configured by fixing the plurality of case members 111 and 112 integrally with each other.
  • the plurality of case members 111 and 112 are the first case member 111 and the second case member 112 arranged on the rear side in the vehicle front-rear direction DR1 with respect to the first case member 111.
  • the plurality of case members 111 and 112 are integrally coupled by fastening members such as metal spring clips and screws after housing the devices such as the evaporator 12 and the heater core 13.
  • a boundary line SPc represented by a two-dot chain line is a boundary between the first case member 111 and the second case member 112. Therefore, in the air conditioning case 11, the vehicle front side with respect to the boundary line SPc is the first case member 111, and the vehicle rear side with respect to the boundary line SPc is the second case member 112.
  • the first case member 111 is formed with an inlet ventilation path 11a, which will be described later.
  • the second case member 112 includes a partition plate 113 described later, guide walls 301 and 302 for the upper air mix door 18, a door guide portion 32 for the face door 28, and the like.
  • the second case member 112 is formed with a plurality of guide grooves 11b, 11c, and 32a, a plurality of air mixing spaces 11g and 11h, a defroster air passage 24, a face air passage 25, and the like, which will be described later.
  • an inlet ventilation path 11 a into which air from the blower unit flows is formed at the most front portion of the vehicle.
  • the evaporator 12 is arrange
  • the evaporator arrangement space 11e in which the evaporator 12 is arranged in the air passage in the case of the air conditioning case 11 is arranged on the downstream side of the air flow with respect to the inlet ventilation path 11a.
  • the evaporator 12 is disposed in the air conditioning case 11 so as to extend substantially in the vehicle vertical direction DR2.
  • the evaporator 12 is disposed on the vehicle rear side with respect to the inlet ventilation path 11a. Accordingly, the air passing through the evaporator 12 flows from the vehicle front side to the vehicle rear side.
  • the width dimension of the evaporator 12 in the vehicle width direction DR3 is designed to be approximately the same as the width dimension inside the air conditioning case 11.
  • the evaporator 12 is a cooling heat exchanger that cools the air by heat exchange between the refrigerant in the refrigeration cycle and the air passing through the evaporator 12.
  • the evaporator 12 includes an upper header tank 121 disposed at the upper end portion of the evaporator 12, a lower header tank 122 disposed at the lower end portion of the evaporator 12, and the upper header tank 121 and the lower header tank 122. And a core portion 123 for heat exchange provided between the two.
  • the core part 123 is a part for exchanging heat between the air passing through the evaporator 12 and the refrigerant of the refrigeration cycle, and a plurality of flat tubes in which the refrigerant flows and a plurality of flat tubes joined to the plurality of flat tubes.
  • the plurality of flat tubes are connected to an upper header tank 121 and a lower header tank 122, respectively, and the upper header tank 121 and the lower header tank 122 distribute or collect refrigerant to the plurality of flat tubes.
  • the air conditioning case 11 has a partition plate 113 in the air conditioning case 11.
  • the partition plate 113 divides the air passage on the downstream side of the air flow with respect to the evaporator 12 in the vehicle vertical direction DR2.
  • an upper air passage 14 is formed on the vehicle upper side with respect to the partition plate 113
  • a lower air passage 15 is formed on the vehicle lower side with respect to the partition plate 113. That is, the evaporator arrangement space 11 e is arranged on the upstream side of the air flow with respect to each of the upper air passage 14 and the lower air passage 15.
  • the upper air passage 14 and the lower air passage 15 are provided in parallel, and the upstream end of the upper air passage 14 and the upstream end of the lower air passage 15 are open toward the evaporator 12, respectively. Therefore, the air that has flowed out of the evaporator 12 flows into the upper air passage 14 and the lower air passage 15.
  • the heater core 13 is disposed on the downstream side of the air flow with respect to the evaporator 12 (in other words, on the vehicle rear side) with a space between the heater core 13 and the evaporator 12.
  • the width dimension of the heater core 13 in the vehicle width direction DR3 is designed to be substantially the same as the width dimension inside the air conditioning case 11.
  • the heater core 13 is a heat exchanger for heating that heats the cold air that has passed through the evaporator 12.
  • the heater core 13 includes a core part 131 for heat exchange, and air passing through the core part 131 is heated.
  • the core portion 131 of the heater core 13 is composed of, for example, a plurality of flat tubes through which engine cooling water as a high-temperature heat medium flows and a plurality of corrugated fins joined thereto.
  • the core portion 131 of the heater core 13 is disposed so as to penetrate a through hole provided in the partition plate 113.
  • the upper portion of the core portion 131 is positioned in the upper air passage 14 and the lower portion is positioned in the lower air passage 15.
  • the upper part of the core part 131 heats the air flowing through the upper air passage 14 as indicated by the arrow F5, and the lower part of the core part 131 flows through the lower air passage 15 as indicated by the arrow F6. Heat.
  • the electric heater 16 has a positive resistance temperature characteristic in which the electric resistance value increases as the temperature increases, and is configured by an electric resistor whose electric resistance value increases rapidly when a predetermined temperature is exceeded. That is, the electric heater 16 is, for example, a PTC heater.
  • the electric heater 16 is disposed in the lower air passage 15.
  • the electric heater 16 is disposed on the downstream side of the air flow with respect to the heater core 13. Accordingly, when the electric heater 16 is energized, the lower air passage 15 heats the air that has passed through the core portion 131 of the heater core 13.
  • An upper door opening / closing port 141 that is opened and closed by the upper air mix door 18 is formed in an upper portion of the upper air passage 14 with respect to the heater core 13. That is, the upper door opening / closing port 141 is provided as a part of the upper air passage 14, and the upper air mixing door 18 functions as an opening / closing door that opens and closes the upper door opening / closing port 141.
  • the upper door opening / closing port 141 is open, cold air flows through the upper door opening / closing port 141 by bypassing the heater core 13 as indicated by an arrow F3.
  • a lower door opening / closing port 151 that is opened and closed by the lower air mix door 20 is formed in a portion of the lower air passage 15 below the heater core 13.
  • the lower door opening / closing port 151 is provided as a part of the lower air passage 15. When the lower door opening / closing port 151 is open, cold air flows through the lower door opening / closing port 151 by bypassing the heater core 13 as indicated by an arrow F4.
  • upper and lower air mix doors 18, 20 that constitute a temperature adjustment device are disposed at a portion between the heater core 13 and the evaporator 12.
  • the upper air mix door 18 has an air volume of hot air heated at the top of the core portion 131 of the heater core 13 as indicated by an arrow F5 and cold air that bypasses the heater core 13 through the upper door opening / closing port 141 as indicated by an arrow F3. Adjust the percentage.
  • the hot air F5 from the upper part of the core part 131 of the heater core 13 and the cold air F3 from the upper door opening / closing port 141 are mixed in the first air mixing space 11g to become air having a desired temperature.
  • the first air mixing space 11 g is included in an in-case air passage formed in the air conditioning case 11.
  • the first air mixing space 11g is on the downstream side of the air flow with respect to the upper air passage 14, that is, on the downstream side of the air flow with respect to each of the upper door opening / closing port 141 and the portion of the heater core 13 disposed in the upper air passage 14. Has been placed.
  • the lower air mix door 20 includes hot air heated at the lower portion of the core portion 131 of the heater core 13 as indicated by an arrow F6, and cold air that bypasses the heater core 13 through the lower door opening / closing port 151 as indicated by an arrow F4. Adjust the air volume ratio.
  • the hot air F6 from the lower part of the core 131 of the heater core 13 and the cold air F4 from the lower door opening / closing port 151 are mixed in the second air mixing space 11h to become air of a desired temperature.
  • the second air mixing space 11 h is included in an in-case air passage formed in the air conditioning case 11.
  • the second air mixing space 11h has an air flow downstream of the lower air passage 15, that is, an air flow with respect to each of the lower door opening / closing port 151 and a portion of the heater core 13 disposed in the lower air passage 15. It is arranged downstream.
  • the upper air mix door 18, the lower air mix door 20, and the face door 28 are provided in the air conditioning case 11 as separate and independent doors.
  • Each of the upper air mix door 18 and the lower air mix door 20 is a plate-like slide door that slides substantially parallel to the front surface of the heater core 13.
  • the upper air mix door 18 is provided in the air conditioning case 11. And the upper air mix door 18 has the plate-shaped door main-body part 181 and a pair of rack 182 as shown in FIG.
  • the pair of racks 182 are provided on one surface of the door main body 181, specifically, on the upstream surface of the door main body 181.
  • the pair of racks 182 of the upper air mix door 18 mesh with a pair of pinions 191 included in the upper geared shaft 19. Therefore, the upper air mix door 18 as the second slide door slides in the predetermined second door moving direction Db with the rotation of the upper geared shaft 19 that is driven to rotate by an electric actuator (not shown).
  • FIG. 2 the illustration of the evaporator 12 and the upper geared shaft 19 is omitted for easy viewing.
  • the upper air mix door 18 is illustrated in a state where it is located at the upper moving end of the sliding movement, that is, in a state where the upper door opening / closing port 141 is fully closed.
  • the upper moving end is, in other words, the moving end on one side in the second door moving direction Db.
  • the door main body portion 181 of the upper air mix door 18 is a portion that covers the upper door opening / closing port 141 and has a pair of guided portions 183.
  • the pair of guided portions 183 are disposed at both ends of the upper air mix door 18 in the vehicle width direction DR3.
  • the pair of guided portions 183 are disposed on both outer sides of the pair of racks 182 in the vehicle width direction DR3.
  • the pair of guided portions 183 are fitted in guide grooves 11b formed in the air conditioning case 11 and extending in the second door movement direction Db. Thereby, the upper air mix door 18 is guided so as to slide in the second door movement direction Db. Since the guided portions 183 fitted into the guide groove 11b form a pair along the vehicle width direction DR3, similarly, the guide groove 11b forms a pair along the vehicle width direction DR3.
  • each guide groove 11 b of the air conditioning case 11 is formed between two guide walls 301 and 302 included in the air conditioning case 11.
  • the two guide walls 301 and 302 are arranged with the guided portion 183 of the upper air mix door 18 in between. With this arrangement, the two guide walls 301 and 302 guide the sliding movement of the upper air mix door 18 along the second door movement direction Db.
  • the two guide walls 301 and 302 are the one surface side guide wall 301 arrange
  • One surface side of the upper air mix door 18 is the air flow downstream side of the upper air mix door 18 in the present embodiment, and the other surface side of the upper air mix door 18 is opposite to the one surface side of the upper air mix door 18. Side, that is, upstream of the air flow.
  • a guide groove for the upper air mix door 18 includes a facing surface that faces the other surface side guide wall 302 in the one surface side guide wall 301 and a facing surface that faces the first surface side guide wall 301 in the other surface side guide wall 302.
  • 11b is a groove side surface.
  • a guided portion 183 as a sliding portion of the upper air mix door 18 slides on the groove side surface of the guide groove 11b formed by the one-surface-side guide wall 301 and the other-surface-side guide wall 302. .
  • the two guide walls 301 and 302 on which the guided portions 183 slide are also It arrange
  • An upper door opening / closing port 141 is formed between the pair of one-surface-side guide walls 301 aligned in the vehicle width direction DR3.
  • two upper air mix doors 18 are provided side by side in the vehicle width direction DR ⁇ b> 3 in the air conditioning case 11.
  • the two upper air mix doors 18 are symmetrical with each other in the vehicle width direction DR3, for example.
  • the lower air mix door 20 has the same structure as the upper air mix door 18. That is, the lower air mix door 20 includes a plate-shaped door main body 201 and a pair of racks 202 that mesh with a pair of pinions 211 included in the lower geared shaft 21. Then, the lower air mix door 20 as the third slide door slides in the predetermined third door movement direction Dc. Further, both end portions in the vehicle width direction DR3 of the door main body portion 201 of the lower air mix door 20 are respectively fitted in guide grooves 11c formed in the air conditioning case 11 and extending in the third door movement direction Dc. Thereby, the lower air mix door 20 is guided so as to slide in the third door movement direction Dc. Similarly to the guide groove 11b for the upper air mix door 18, the guide groove 11c for the lower air mix door 20 forms a pair side by side in the vehicle width direction DR3.
  • the second door movement direction Db and the third door movement direction Dc are directions intersecting the vehicle width direction DR3 (strictly speaking, orthogonal directions). Accordingly, the door width direction of the upper air mix door 18 that is one of the directions along the upper air mix door 18 and the lower air mix door 20 that is one of the directions along the lower air mix door 20.
  • the door width direction is the vehicle width direction DR3. That is, each door width direction of the air mix doors 18 and 20 is a normal direction of the paper surface in FIG.
  • each of the upper geared shaft 19 and the lower geared shaft 21 extends in the vehicle width direction DR3 and is rotatably supported by the air conditioning case 11. Further, in the present embodiment, two lower air mix doors 20 are also provided side by side in the vehicle width direction DR3 in the air conditioning case 11 in the same manner as the upper air mix door 18 described above.
  • a defroster outlet 241 and a face outlet 251 are formed on the upper surface portion of the air conditioning case 11.
  • a defroster duct (not shown) is connected to the defroster outlet 241.
  • the defroster outlet 241 blows air toward the inner surface of the vehicle front window glass through the defroster duct.
  • the defroster outlet 241 is an open end formed as an air flow downstream end of the defroster air passage 24.
  • the defroster air passage 24 is included in an in-case air passage formed in the air conditioning case 11, and is disposed on the downstream side of the air flow with respect to the first air mixing space 11g.
  • a defroster door 26 is provided as a rotating door that is operated by an electric actuator (not shown).
  • the defroster door 26 opens and closes the defroster outlet 241 by its rotation.
  • the face outlet 251 is provided on the vehicle rear side with respect to the defroster outlet 241.
  • a face duct (not shown) is connected to the face air outlet 251, and the face air outlet 251 blows out air toward the head or chest of the passenger seated in the front seat of the passenger compartment through the face duct. .
  • the face outlet 251 is an open end formed as an air flow downstream end of the face air passage 25.
  • the face air passage 25 is included in an in-case air passage formed in the air conditioning case 11, and is disposed on the downstream side of the air flow with respect to the first air mixing space 11g.
  • a foot air outlet (not shown) that communicates with the second air mixing space 11h is formed in a portion of the air conditioning case 11 on the vehicle rear side and the lower side, and the foot air outlet is opened and closed by a foot door (not shown).
  • a foot duct (not shown) is connected to the foot air outlet, and the foot air outlet blows air toward a foot portion of an occupant seated in the front seat of the vehicle interior via the foot duct.
  • a mixed space communication port 11d is formed between the first air mixed space 11g and the second air mixed space 11h.
  • the mixing space communication port 11d is an air passage that communicates the first air mixing space 11g and the second air mixing space 11h in the air passage in the case.
  • the mixing space communication port 11d is opened and closed by a communication port door 27 as a rotating door driven by an electric actuator (not shown).
  • the face door 28 is a sliding door that slides in the air conditioning case 11 in a predetermined first door moving direction Da.
  • the face door 28 opens and closes between the upstream air passage 50 and the downstream air passage 52 by sliding in the first door movement direction Da.
  • the upstream air passage 50 is an air passage provided on the upstream side of the air flow in the case air passage with respect to the face door 28, and the downstream air passage 52 is in the case air passage with respect to the face door 28. It is an air passage provided on the downstream side of the air flow. Accordingly, the downstream air passage 52 is provided on the downstream side of the air flow with respect to the upstream air passage 50.
  • the upstream air passage 50 includes an inlet air passage 11a, a mixing space communication port 11d, an evaporator arrangement space 11e, a first air mixing space 11g, a second air mixing space 11h, an upper air passage 14, and a lower air.
  • a passage 15 is included.
  • the downstream air passage 52 includes a defroster air passage 24 as a first air passage and a face air passage 25 as a second air passage.
  • the first door moving direction Da of the face door 28 is a direction along the upstream end of the air flow of the defroster air passage 24 and the upstream end of the air flow of the face air passage 25.
  • the face door 28 opens and closes the defroster air passage 24 and the face air passage 25, respectively. Specifically, the face door 28 slides so as to close the face air passage 25 as the defroster air passage 24 is opened.
  • the face door 28 is a slide door having a structure that is approximately the same as that of the upper air mix door 18. Therefore, the face door 28 has a plate shape along the first door movement direction Da as a whole.
  • the face door 28 has a plate-like door main body 281 and a rack 282.
  • the door main body 281 of the face door 28 is a portion that covers the air flow upstream end of the defroster air passage 24 and the air flow upstream end of the face air passage 25.
  • Two racks 282 of the face door 28 are provided on one side of the door body 281, specifically, on the upstream side of the air flow of the door body 281.
  • the two racks 282 are arranged to form a pair in the door width direction of the face door 28 that coincides with the vehicle width direction DR3.
  • the door width direction of the face door 28 is one of the directions along the plate-like face door 28, and is the normal direction of the paper surface in FIG. Therefore, the door width direction of the face door 28 is a direction intersecting the first door movement direction Da (strictly speaking, a direction orthogonal to each other).
  • the pair of racks 282 of the face door 28 mesh with the pair of pinions 291 included in the face door geared shaft 29. Therefore, the face door 28 as the first sliding door slides in the first door moving direction Da with the rotation of the face door geared shaft 29 that is rotationally driven by an electric actuator (not shown).
  • the heater core 13, the upper geared shaft 19, the defroster door 26, and the face door geared shaft 29 are not shown.
  • the upper air mix door 18 is illustrated in a state of being located at the upper moving end of the sliding movement, as in FIG.
  • the face door geared shaft 29 extends in the vehicle width direction DR3 and is rotatably supported by the air conditioning case 11 in the same manner as the geared shafts 19 and 21 described above.
  • the air conditioning case 11 has a door guide portion 32 into which the face door 28 is inserted and guides the movement of the face door 28.
  • the door guide portion 32 for the face door 28 has one end 321 on one side in the first door movement direction Da and the other end 322 on the other side in the first door movement direction Da.
  • the one end portion 321 of the door guide portion 32 is formed with an insertion port 321a when the face door 28 is inserted into the door guide portion 32 from one side in the first door movement direction Da.
  • the face door 28 is inserted into the door guide portion 32 from the insertion port 321a in the assembly process of the air conditioning unit 10 or the like.
  • the insertion port 321 a of the door guide portion 32 is open to the upper air passage 14 in the upstream air passage 50.
  • the insertion port 321a opens in a direction facing the evaporator 12. That is, the evaporator 12 is a heat exchanger that is disposed in the upstream air passage 50 on the upstream side of the air flow from the insertion port 321a.
  • the upper door opening / closing port 141 is provided in the upstream air passage 50 on the downstream side of the air flow from the insertion port 321a. More specifically, the insertion port 321 a is open to the upstream air passage 50 on the upstream side of the air flow with respect to the upper air mix door 18.
  • the door guide portion 32 has guide grooves 32a formed at both ends in the vehicle width direction DR3.
  • the guide grooves 32a form a pair opposite to each other in the vehicle width direction DR3, and extend from one end 321 to the other end 322 of the door guide portion 32 along the first door movement direction Da.
  • the door body 281 of the face door 28 has a pair of guided portions as both ends of the face door 28 in the vehicle width direction DR3.
  • the arrangement of the pair of guided portions of the face door 28 is the same as that of the pair of guided portions 183 of the upper air mix door 18 shown in FIG.
  • the pair of guided portions of the face door 28 are fitted into the pair of guide grooves 32a for the face door 28, respectively.
  • the face door 28 is guided to slide in the first door movement direction Da.
  • the pair of guided portions of the face door 28 are disposed on both outer sides of the pair of racks 282 in the vehicle width direction DR3, for example, similarly to the upper air mix door 18.
  • each of the pair of guide grooves 32a of the door guide portion 32 has one end on one side in the first door movement direction Da.
  • the above-mentioned insertion port 321a of the door guide part 32 is comprised from the area
  • two face doors 28 are provided side by side in the vehicle width direction DR3 in the air conditioning case 11 in the same manner as the upper air mix door 18 described above. Accordingly, since the door guide portion 32 for the face door 28 is provided for each face door 28, two door guide portions 32 are provided side by side in the vehicle width direction DR3.
  • the cover member 40 is fixed to the air conditioning case 11 and covers the insertion port 321 a of the door guide portion 32.
  • the cover member 40 is configured as a member different from the air conditioning case 11, and is fixed to the second case member 112 in the air conditioning case 11.
  • the cover member 40 includes a lid portion 401 serving as a cover body that covers the insertion port 321a, and a plurality of extending portions 402 extending from the lid portion 401.
  • the lid 401 is formed in a plate shape having a thickness in the first door movement direction Da and extending in the vehicle width direction DR3.
  • the lid portion 401 has a groove or a protrusion on the one end portion 321 side of the door guide portion 32, for example. It is fixed by press-fitting.
  • the plurality of extending portions 402 extend substantially downward from the lid portion 401 and are arranged at an interval in the vehicle width direction DR3.
  • the extended portion 402 is provided as a door pressing portion that presses the upper air mix door 18.
  • the cover member 40 covers the insertion port 321 a between the evaporator 12 and the insertion port 321 a of the door guide part 32. Specifically, the cover 401 of the cover member 40 is sandwiched between the upper header tank 121 of the evaporator 12 and the one end 321 of the door guide 32.
  • the lid portion 401 has a support portion 401 a for supporting the evaporator 12 on the side opposite to the one end portion 321 side of the door guide portion 32.
  • the support portion 401a is composed of a plurality of support ribs arranged in the vehicle width direction DR3 with the vehicle width direction DR3 as the thickness direction.
  • an upper cushion material 42 made of urethane foam or the like is attached to the surface of the upper header tank 121 between the support portion 401 a and the upper header tank 121 of the evaporator 12.
  • the upper cushion material 42 is elastically compressed. Therefore, the lid 401 of the cover member 40 is pressed toward the one end 321 of the door guide 32 by the upper header tank 121.
  • the cover member 40 is disposed between the one end 321 of the door guide portion 32 and the evaporator 12, and is pressed against the one end 321 of the door guide portion 32 by the evaporator 12.
  • the first case member 111 includes a first case side support portion 111 a, a second case side support portion 111 b, and a third case side support portion 111 c for supporting the evaporator 12.
  • the first case side support portion 111a, the second case side support portion 111b, and the third case side support portion 111c are respectively in the vehicle width direction DR3 with the vehicle width direction DR3 as the thickness direction, similarly to the support portion 401a of the cover member 40. It comprises a plurality of support ribs arranged in a row.
  • the evaporator 12 is supported in the air conditioning case 11 by the first case member 111 and the cover member 40.
  • the upper cushion material 42 is provided between the first case side support portion 111a and the upper header tank 121 of the evaporator 12, and between the support portion 401a of the cover member 40 and the upper header tank 121.
  • Each is interposed and elastically compressed.
  • the lower cushion material 44 is between the second case side support 111b and the lower header tank 122 of the evaporator 12, and between the third case side support 111c and the lower header tank 122. Are respectively elastically compressed.
  • the evaporator 12 is supported by the first case side support portion 111a and the support portion 401a of the cover member 40 in the upper header tank 121, and the second case side support portion 111b and the third case in the lower header tank 122. It is supported by the side support part 111c.
  • the second case member 112 indirectly supports the evaporator 12 via the cover member 40. That is, the air conditioning case 11 has a structure in which the evaporator 12 is held in the air conditioning case 11 by the first case member 111 and the second case member 112.
  • the insertion port 321 a of the door guide portion 32 is opened upstream of the upper door opening / closing port 141 in the air flow direction. Therefore, if there is no cover member 40 and the insertion port 321a remains open, air freely flows into the insertion port 321a.
  • the air flowing into the insertion port 321a bypasses the upper door opening / closing port 141 and flows downstream from the upper door opening / closing port 141. For example, the air that has flowed into the insertion port 321a flows into one or each of the defroster air passage 24, the face air passage 25, and the first air mixing space 11g.
  • the cover member 40 covers the insertion port 321a, thereby preventing the air flow that bypasses the upper door opening / closing port 141 via the insertion port 321a.
  • the cover member 40 covers the entire insertion port 321a of the door guide portion 32 from one side in the first door movement direction Da.
  • the cover member 40 covers one end portion 321 of the door guide portion 32 with an area wider than that of the insertion port 321a.
  • the upper air mix door 18 shown in FIG. 2 and FIG. 4 is located at a moving end (in other words, a stroke end) on one side in the second door moving direction Db in the sliding movement of the upper air mix door 18. .
  • the extended portion 402 of the cover member 40 is formed from the other surface side of the upper air mix door 18 when the upper air mix door 18 is located at the moving end on one side thereof.
  • the upper air mix door 18 is urged so as to be pressed against the one-surface guide wall 301. At this time, since the extending portion 402 is elastically deformed, the urging force against the upper air mix door 18 is exhibited by the elastic deformation.
  • the extending portion 402 of the cover member 40 is provided so that the upper air mix door 18 is moved to the other side in the second door moving direction Db by a predetermined distance DS from the moving end on the one side. 18 is urged so as to press against the one-side guide wall 301.
  • the door main body 181 of the upper air mix door 18 has a contact rib 184 whose thickness direction is the vehicle width direction DR ⁇ b> 3 and a portion where the extended portion 402 of the cover member 40 contacts.
  • the extended portion 402 is urged while being in contact with the end edge of the abutment rib 184.
  • the abutment rib 184 slides with respect to the extending portion 402 of the cover member 40 along with the sliding movement.
  • the extended portion 402 of the cover member 40 has a pair of one-side guide walls arranged in the vehicle width direction DR3 when the upper air mix door 18 is urged from the other side.
  • the upper air mix door 18 is abutted between the 301.
  • a pair of racks 182 of the upper air mix door 18 are disposed between the pair of one-side guide walls 301 in the vehicle width direction DR3 as shown in FIG.
  • the pair of racks 182 are arranged in the vehicle width direction DR3, and the extending portion 402 of the cover member 40 contacts the upper air mix door 18 between the pair of racks 182.
  • a total of four extending portions 402 of the cover member 40 are provided, and a total of two upper air mix doors 18 are provided as described above. Accordingly, for each upper air mix door 18, the two extending portions 402 bias the upper air mix door 18.
  • the cover member 40 fixed in the air conditioning case 11 covers the insertion port 321 a of the door guide portion 32. Therefore, it is possible to prevent air from flowing through the insertion port 321a.
  • the cover member 40 covers the insertion port 321a, thereby preventing the air flow that bypasses the upper door opening / closing port 141 through the insertion port 321a. Therefore, it is possible to prevent an unnecessary air flow that bypasses the upper door opening / closing port 141. Therefore, it is possible to appropriately obtain an operational effect obtained by opening and closing the upper door opening / closing port 141, for example, an operational effect of adjusting the temperature of the conditioned air blown from the defroster outlet 241 or the face outlet 251.
  • the face door geared shaft 29 is freely rotated before the servo module including the electric actuator for rotating the shaft 29 is assembled. Therefore, when the face door 28 is in a posture in which one side of the first door movement direction Da is directed downward before the servo module is assembled, the face door 28 falls out of the insertion port 321a due to its own weight. Can do.
  • the cover member 40 covers the insertion port 321a as described above. Therefore, even if the face door 28 tries to come out of the door guide portion 32 by its own weight in the assembly process of the air conditioning unit 10. It can be stopped by the cover member 40. In short, it is possible to prevent the face door 28 from falling off during the assembly process.
  • the air conditioning unit 10 includes the evaporator 12 as a heat exchanger arranged on the upstream side of the air flow 50 from the insertion port 321a of the door guide portion 32 in the upstream side air passage 50. .
  • the cover member 40 covers the insertion port 321a between the evaporator 12 and the insertion port 321a. Therefore, it is possible to prevent the cover member 40 fixed to the air conditioning case 11 from dropping from the air conditioning case 11 using the evaporator 12. In short, the evaporator 12 can hold the cover member 40 in a state where the insertion port 321a is covered.
  • the cover member 40 is disposed between the one end 321 of the door guide portion 32 and the evaporator 12, and is pressed against the one end 321 of the door guide portion 32 by the evaporator 12. Yes. Therefore, for example, compared with the case where the cover member 40 is not pressed against the one end 321 of the door guide portion 32, it is possible to obtain a higher function of preventing the cover member 40 from falling off the air conditioning case 11.
  • the air-conditioning case 11 has the 1st case member 111 and the 2nd case member 112, and the 1st case member 111 and the 2nd case member 112 are fixed integrally. It is comprised by.
  • the door guide portion 32 is included in the second case member 112 of the air conditioning case 11, and the cover member 40 is fixed to the second case member 112.
  • the evaporator 12 is supported in the air conditioning case 11 by the first case member 111 and the cover member 40. Therefore, the second case member 112 can indirectly support the evaporator 12 via the cover member 40.
  • the air conditioning unit 10 often employs various evaporators 12 having different shapes.
  • the holding shape for the evaporator 12 is the shape of the case side support portions 111a, 111b, 111c and the support portion 401a of the cover member 40 in FIG.
  • the second case member 112 is replaced if one or both of the first case member 111 and the cover member 40 are replaced. It is possible to deal with various evaporators 12 without any problems. In short, it is possible to establish the air conditioning unit 10 that can handle various evaporators 12 by using the second case member 112 as a common component.
  • the air conditioning unit 10 includes a plate-like upper air mix door 18 as a second slide door, and the upper air mix door 18 is a predetermined second door moving direction in the air conditioning case 11.
  • the cover member 40 includes a lid portion 401 that covers the insertion port 321 a of the door guide portion 32, and an extending portion 402 that extends from the lid portion 401. As the upper air mix door 18 slides toward one side in the second door movement direction Db, the opening degree of the upper door opening / closing port 141 is reduced and the lid portion 401 of the cover member 40 is approached.
  • the extended portion 402 of the cover member 40 is arranged such that when the upper air mix door 18 is located at one moving end in the second door moving direction Db in the sliding movement of the upper air mix door 18, the upper air mix door 18 is located.
  • the upper air mix door 18 is urged so as to be pressed against the one-surface guide wall 301 from the other surface side.
  • the upper door opening / closing port 141 is closed by the upper air mix door 18, so that the upper air mix door 18 has the wind pressure. May cause vibration.
  • the extension part 402 of the cover member 40 urges the upper air mix door 18 as described above, it is possible to suppress vibration of the upper air mix door 18 due to the air flow.
  • the extended portion 402 of the cover member 40 is configured such that the upper air mix door 18 is predetermined from the moving end on one side to the other side opposite to the one side in the second door moving direction Db.
  • the upper air mix door 18 is urged so as to be pressed against the one-surface guide wall 301 until the distance DS moves.
  • the vibration of the upper air mix door 18 is not limited to the case where the upper air mix door 18 is located at the moving end on one side in the second door moving direction Db, but the upper air mix door 18 is moved to the upper door opening / closing port. It may also occur when 141 is opened slightly.
  • the extended portion 402 of the cover member 40 urges the upper air mix door 18 until the upper air mix door 18 moves by a predetermined distance DS as described above, which is caused by the air flow. The vibration of the upper air mix door 18 can be more sufficiently suppressed.
  • a plurality of one-surface-side guide walls 301 that guide the sliding movement of the upper air mix door 18 are provided, and a pair is arranged side by side in the door width direction of the upper air mix door 18 that matches the vehicle width direction DR3. It is what constitutes.
  • a guided portion 183 as a sliding portion of the upper air mix door 18 slides on each of the pair of one-surface-side guide walls 301.
  • the extending portion 402 of the cover member 40 serves as a second slide door between the pair of one-surface guide walls 301 in the vehicle width direction DR3. Abut against.
  • the insertion port 321a of the door guide portion 32 is disposed on the downstream side of the air flow with respect to the evaporator 12, but this is an example.
  • the door guide portion 32 may be formed so that the insertion port 321a is disposed on the upstream side of the air flow with respect to the evaporator 12.
  • the extending portion 402 as a door pressing portion that presses the upper air mix door 18 is provided as a part of the cover member 40.
  • the extended portion 402 may be provided as a part of the air conditioning case 11, or may be configured as a component different from the cover member 40 and the air conditioning case 11.
  • the extension portion 402 as another component may be configured as an attachment attached to the cover member 40 or the air conditioning case 11.
  • the extension part 402 has comprised plate shape in FIG. 2 and FIG. 4, the shape of the extension part 402 is not limited.
  • the extending portion 402 as the door pressing portion may be formed to extend from the air conditioning case 11 as shown in FIGS. 9 and 10 instead of a part of the cover member 40.
  • the extending portion 402 is integrally formed with the air conditioning case 11.
  • the air conditioning unit 10 has the second door pressing portion 114 in addition to the extension portion 402 serving as the first door pressing portion.
  • the upper air mix door 18 has a pair of contact ribs 184 similar to the contact ribs 184 (see FIG. 3) provided on the upper side as well as the upper side as shown in FIG. ing.
  • the second door pressing portion 114 is formed so as to extend from the air conditioning case 11 similarly to the first door pressing portion 402, and the upper air mixing door 18.
  • the upper air mix door 18 is pressed by the lower abutment rib 184 of the.
  • the second door pressing portion 114 is provided on the side opposite to the first door pressing portion 402 side in the second door movement direction Db.
  • a configuration in which one of the first door pressing portion 402 and the second door pressing portion 114 is not provided can be assumed.
  • one side of the second door movement direction Db is set to the upper side and the other side is set to the lower side.
  • one side of the second door movement direction Db is the lower side and the other side is the upper side.
  • the upper air mix door 18 slides toward one side (specifically, the lower side) in the second door movement direction Db, and the upper air
  • the opening degree of the second door opening / closing port 142 included in the passage 14 is reduced.
  • the second door opening / closing port 142 is disposed below the upper door opening / closing port 141 serving as the first door opening / closing port, and serves as an inlet of an air passage in which the heater core 13 is disposed.
  • the one-surface-side guide walls 301 are paired in the vehicle width direction DR3, and the guided portion 183 (see FIG. 3) of the upper air mix door 18 slides.
  • a lower guide portion 301 a for guiding the upper air mix door 18 is provided below the second door opening / closing port 142.
  • the second door pressing portion 114 may be configured as a component different from the air conditioning case 11, similarly to the first door pressing portion 402 described above.
  • the illustration of the evaporator 12 and the upper geared shaft 19 is omitted in FIG. 9. 10 and 11, the heater core 13, the upper geared shaft 19, the face door 28, and the face door geared shaft 29 are not shown.
  • the upper air mix door 18 is illustrated in a state of being located at the upper moving end of the slide movement.
  • the upper air mix door 18 is illustrated as the lower moving end of the slide movement. It is illustrated in a state of being located at the position.
  • this indication is not limited to the above-mentioned embodiment, It can implement by changing variously. Further, in the above-described embodiment, it is needless to say that elements constituting the embodiment are not necessarily indispensable except for the case where it is clearly indicated that the element is essential and the case where the element is clearly considered to be essential in principle. .
  • an air-conditioning case has a door guide part which a slide door is inserted and guides the movement of a slide door.
  • the door guide portion has one end portion on one side in the door moving direction, and an insertion opening for inserting the slide door into the door guide portion is formed at the one end portion.
  • the cover member housed in the air conditioning case and fixed to the air conditioning case covers the insertion port.
  • the air conditioning unit includes a heat exchanger disposed on the upstream side of the air flow from the insertion port in the upstream side air passage.
  • the cover member covers the insertion port between the heat exchanger and the insertion port. Therefore, it is possible to prevent the cover member fixed to the air conditioning case from falling off the air conditioning case using the heat exchanger. In short, it is possible to hold the cover member with the insertion port covered with the heat exchanger.
  • the cover member is disposed between one end portion of the door guide portion and the heat exchanger, and is pressed against the one end portion of the door guide portion by the heat exchanger. Therefore, for example, compared with the case where the cover member is not pressed against the one end part of the door guide part, it is possible to obtain a higher function for preventing the cover member from dropping from the air conditioning case.
  • the air conditioning case includes a first case member and a second case member, and the first case member and the second case member are integrally fixed.
  • the door guide part is included in the second case member of the air conditioning case, and the cover member is fixed to the second case member of the air conditioning case.
  • the heat exchanger is supported in the air conditioning case by the first case member and the cover member. Therefore, the second case member can indirectly support the heat exchanger via the cover member. Therefore, when various heat exchangers having different shapes are adopted, if one or both of the first case member and the cover member are replaced, the various heat exchanges are performed without replacing the second case member. It is possible to correspond to a vessel. In short, it is possible to provide an air conditioning unit that can handle various heat exchangers using the second case member as a common component.
  • the air conditioning unit includes an opening / closing door that opens and closes a door opening / closing opening provided on the downstream side of the air flow from the insertion opening in the upstream air passage.
  • a cover member prevents the air flow which detours a door opening-and-closing port through the insertion port by covering an insertion port. Therefore, it is possible to prevent an unnecessary air flow that bypasses the door opening / closing port. Therefore, it is possible to appropriately obtain an operational effect obtained by opening and closing the door opening and closing, for example, an operational effect of adjusting the temperature of the conditioned air.
  • the air conditioning unit includes a plate-like second sliding door that slides in a predetermined second door moving direction within the air conditioning case.
  • the cover member includes a lid portion that covers the insertion port, and a door pressing portion that extends from the lid portion.
  • the opening degree of the door opening / closing port included in the air passage in the case is reduced and the cover member is closer to the cover portion.
  • the door opening / closing port is closed by the second sliding door, so that the second sliding door does not generate wind pressure. May cause vibration.
  • the door pressing portion biases the second slide door as in the sixth aspect, it is possible to suppress the vibration of the second slide door caused by the air flow.
  • the air conditioning unit includes a plate-like second slide door that slides in a predetermined second door movement direction in the air conditioning case, and a door presser provided in the air conditioning case.
  • a plate-like second slide door that slides in a predetermined second door movement direction in the air conditioning case, and a door presser provided in the air conditioning case.
  • the opening degree of the door opening / closing port included in the air passage in the case is reduced.
  • the door pressing portion is opposite to the one surface side of the second slide door.
  • the second slide door is urged from the other surface side so as to be pressed against the one surface side guide wall. Therefore, similarly to the sixth aspect, it is possible to suppress the vibration of the second slide door due to the air flow.
  • the door pressing portion is moved from the moving end on the one side to the other side opposite to the one side in the second door moving direction until the second sliding door moves a predetermined distance.
  • the second sliding door is urged so as to be pressed against the one-side guide wall.
  • the vibration of the second sliding door described above is not only when the second sliding door is positioned at the moving end on one side in the second door moving direction, but the second sliding door slightly opens the door opening / closing port. It can also happen.
  • the door pressing portion urges the second slide door as in the eighth aspect, it is possible to further sufficiently suppress the vibration of the second slide door caused by the air flow.
  • a plurality of one-side guide walls are provided side by side in the door width direction to form a pair, and each of the pair of one-side guide walls includes a slide of the second slide door.
  • the moving part slides.
  • the door pressing portion abuts against the second slide door between the pair of one-side guide walls in the door width direction when the second slide door is urged from the other surface side. Therefore, when vibration of the second slide door occurs due to the air flow, it is possible to effectively reduce the vibration amplitude of the vibration at the door pressing portion.

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

Abstract

Selon la présente invention, dans un boîtier de climatisation (11), il est ménagé un passage d'air côté amont (50) par lequel circule de l'air et un passage d'air côté aval (52) qui est disposé sur un côté aval de circulation d'air du passage d'air côté amont et par lequel circule de l'air. Une porte coulissante (28) s'ouvre ou se ferme entre le passage d'air côté amont et le passage d'air côté aval en se déplaçant de manière coulissante dans une direction de déplacement de porte prédéterminée (Da) dans le boîtier de climatisation. Un élément couvercle (40) est logé dans le boîtier de climatisation et est fixé au boîtier de climatisation. Le boîtier de climatisation comporte une partie de guidage de porte (32) dans laquelle la porte coulissante est insérée et qui guide le déplacement de la porte coulissante. La partie de guidage de porte a une section d'extrémité (321) sur un côté dans la direction de déplacement de porte, et une ouverture d'insertion (321a) par laquelle la porte coulissante est insérée dans la partie de guidage de porte est formée au niveau de la section d'extrémité. L'ouverture d'insertion est ouverte vers le passage d'air côté amont. L'élément couvercle ferme l'ouverture d'insertion.
PCT/JP2017/030421 2017-01-26 2017-08-24 Unité de climatisation WO2018138950A1 (fr)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113993729A (zh) * 2019-06-07 2022-01-28 翰昂汽车零部件有限公司 用于hvac模块的滑动温度门结构

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10205872A (ja) * 1997-01-16 1998-08-04 Denso Corp 空調装置
JP2009051486A (ja) * 2007-07-30 2009-03-12 Denso Corp 空気通路開閉装置
JP2015081059A (ja) * 2013-10-24 2015-04-27 株式会社デンソー 空調装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10205872A (ja) * 1997-01-16 1998-08-04 Denso Corp 空調装置
JP2009051486A (ja) * 2007-07-30 2009-03-12 Denso Corp 空気通路開閉装置
JP2015081059A (ja) * 2013-10-24 2015-04-27 株式会社デンソー 空調装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113993729A (zh) * 2019-06-07 2022-01-28 翰昂汽车零部件有限公司 用于hvac模块的滑动温度门结构

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JPWO2018138950A1 (ja) 2019-08-08

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