CN103717033A - Cabinet and temperature control device - Google Patents

Abstract

The embodiment of the present invention discloses a chassis and a temperature control device, wherein the realization of the chassis includes: a housing with a cavity, an air inlet, an air outlet, and a fan; the air inlet and the air outlet are arranged on the housing, and the fan is used to provide Air enters the inner cavity of the shell from the outside of the shell through the air inlet, and then exits the shell through the air outlet; it also includes: a ventilation duct and a controller; one end of the ventilation duct is airtightly connected to the air outlet, and the other end is airtightly connected to the air inlet; A switchable first ventilation window and a second ventilation window are respectively provided on the ventilation duct opposite to the air inlet and the air outlet; the controller is used to close the first ventilation window when the temperature of the target device is lower than the first predetermined temperature and the second ventilation window, opening the first ventilation window and the second ventilation window when the temperature of the target device is higher than the second predetermined temperature. It is used to improve the scope of application, reduce hardware consumption and reduce power consumption on the premise of solving the technical problem of local low temperature.

Description

A chassis, and temperature control equipment

technical field

The invention relates to the technical fields of electricity and machinery, in particular to a case and temperature control equipment.

Background technique

During the use of electronic products, many problems have been found in products in low temperature environments. Through comprehensive comparison and long-term verification, it is found that the problems in the low temperature environment caused by the device itself account for a key part. In order to solve this problem, it is usually necessary to replace high-reliability industrial-grade components, but this will greatly increase the cost.

At present, in order to solve a series of problems caused by local low temperature, some products add resistance to the cold area of the printed circuit board (English: printed circuit board, referred to as: PCB), and the heat generated by the resistance heats up the cold area, thereby ensuring the safety of the entire PCB. The temperature is relatively balanced.

The solution of adding resistors in the cold area of the PCB has the following limitations and technical problems: If the cold areas are scattered, more resistors need to be added, which not only complicates the hardware, but also increases the power consumption accordingly, so the solution of adding resistors is not necessary It is suitable for PCBs with scattered cold areas and requires increased hardware complexity. In addition, the size of the resistor package is relatively large, and the device density on the PCB is getting higher and higher, and it is difficult to have enough space for the resistor on the PCB. Thirdly, the resistor integrated on the PCB needs the power supply device to have sufficient power output due to its large power consumption, so the requirements for the power supply device are relatively high. To sum up, the solution of adding resistance in the cold area of the PCB has a narrow application range, more hardware consumption, and higher power consumption.

Contents of the invention

The embodiment of the present invention provides a chassis and a temperature control device, which are used to improve the scope of application, reduce hardware consumption, and reduce power consumption on the premise of solving the technical problem of local low temperature and achieving relatively balanced temperature of equipment in the chassis.

An embodiment of the present invention provides a case on the one hand, including: a casing with a cavity, an air inlet, an air outlet, and a fan; the air inlet and the air outlet are arranged on the casing, and the fan is used to provide air from the outside of the casing through the air inlet The power that enters the inner cavity of the casing and then exits the casing through the air outlet; also includes:

ventilation ducts and controls;

One end of the ventilation duct is airtightly connected to the air outlet, and the other end is airtightly connected to the air inlet;

A switchable first ventilation window and a second ventilation window are respectively arranged on the ventilation duct opposite to the air inlet and the air outlet;

The controller is configured to close the first ventilation window and the second ventilation window when the temperature of the target device is lower than a first predetermined temperature, and open the first ventilation window and the second ventilation window when the temperature of the target device is higher than the second predetermined temperature ; The first predetermined temperature is less than or equal to the second predetermined temperature.

In combination with the solution in one aspect, in a first possible solution, the chassis further includes:

An electric heating element arranged in the ventilation duct, the electric heating element is connected to a power supply through a relay;

The controller is also used to make the relay switch on the connection between the power supply and the electric heating element when the temperature of the target device is lower than the third predetermined temperature, so that the electric heating element heats the air flowing through the ventilation duct; when the temperature of the target device is higher than the third predetermined temperature 4. When the temperature is predetermined, the relay is disconnected from the power supply and the heating element, so that the heating element is in an idle state.

In combination with the first possible solution, in the second possible solution, the controller includes:

Temperature sensors and relays;

The temperature sensor is used to detect the temperature of the target device, and sends a first control signal to the relay; the first control signal is used to control the relay to switch on or off the connection between the heating element and the power supply;

The relay is used to receive the first control signal from the temperature sensor, and connect the electric heating element to the power supply when the temperature of the target device is lower than the third predetermined temperature, so that the electric heating element heats the air flowing through the ventilation duct; When the temperature of the device is higher than the fourth predetermined temperature, the connection between the electric heating element and the power supply is disconnected, so that the electric heating element is in an idle state.

With reference to the second possible solution, in the third possible solution, the controller further includes: at least two electromagnets, respectively arranged on the side of the first ventilation window and the side of the second ventilation window;

The temperature sensor is also used to send a second control signal to the electromagnet, and the second control signal is used to instruct the electromagnet to close or open the first ventilation window and the second ventilation window;

The electromagnet is used to receive the second control signal from the temperature sensor, close the first ventilation window and the second ventilation window when the temperature of the target device is lower than the first predetermined temperature, and open it when the temperature of the target device is higher than the second predetermined temperature First ventilation window and second ventilation window.

In combination with the solution in one aspect or the first possible solution, in a fourth possible solution, the controller includes:

a temperature sensor and at least two electromagnets, the at least two electromagnets are respectively arranged on the side of the first ventilation window and the side of the second ventilation window;

a temperature sensor, configured to send a second control signal to the electromagnet, and the second control signal is used to instruct the electromagnet to open or close the first ventilation window and the second ventilation window;

The electromagnet is used to receive the second control signal from the temperature sensor, close the first ventilation window and the second ventilation window when the temperature of the target device is lower than the first predetermined temperature, and open it when the temperature of the target device is higher than the second predetermined temperature First ventilation window and second ventilation window.

The second aspect of the embodiment of the present invention provides a temperature control device, including: a ventilation duct and a controller;

One end of the ventilation duct has an interface that is airtightly connected to the air outlet, and the other end has an interface that is airtightly connected to the air inlet; the air outlet and the air inlet are the air outlet and the air outlet of the chassis of the target device to be installed by the temperature control device air inlet;

A switchable first ventilation window and a second ventilation window are respectively arranged on the ventilation duct opposite to the air inlet and the air outlet;

The controller is configured to close the first ventilation window and the second ventilation window when the temperature of the target device is lower than a first predetermined temperature, and open the first ventilation window and the second ventilation window when the temperature of the target device is higher than the second predetermined temperature ; The first predetermined temperature is less than or equal to the second predetermined temperature.

Combining the solutions of the two aspects, in the first possible solution, the temperature control equipment further includes:

An electric heating element arranged in the ventilation duct, the electric heating element is connected to a power supply through a relay;

The controller is also used to make the relay switch on the connection between the power supply and the electric heating element when the temperature of the target device is lower than the third predetermined temperature, so that the electric heating element heats the air flowing through the ventilation duct; when the temperature of the target device is higher than the third predetermined temperature 4. When the temperature is predetermined, the relay is disconnected from the power supply and the heating element, so that the heating element is in an idle state.

In combination with the first possible solution, in the second possible solution, the controller includes:

Temperature sensors and relays;

The temperature sensor is used to detect the temperature of the target device, and sends a first control signal to the relay; the first control signal is used to control the relay to switch on or off the connection between the heating element and the power supply;

The relay is used to receive the first control signal from the temperature sensor, and connect the electric heating element to the power supply when the temperature of the target device is lower than the third predetermined temperature, so that the electric heating element heats the air flowing through the ventilation duct; When the temperature of the device is higher than the fourth predetermined temperature, the connection between the electric heating element and the power supply is disconnected, so that the electric heating element is in an idle state.

With reference to the second possible solution, in the third possible solution, the controller further includes: at least two electromagnets, respectively arranged on the side of the first ventilation window and the side of the second ventilation window;

The temperature sensor is also used to send a second control signal to the electromagnet, and the second control signal is used to instruct the electromagnet to close or open the first ventilation window and the second ventilation window;

The electromagnet is used to receive the second control signal from the temperature sensor, close the first ventilation window and the second ventilation window when the temperature of the target device is lower than the first predetermined temperature, and open it when the temperature of the target device is higher than the second predetermined temperature First ventilation window and second ventilation window.

In combination with the solution in one aspect or the first possible solution, in a fourth possible solution, the controller includes:

a temperature sensor and at least two electromagnets, the at least two electromagnets are respectively arranged on the side of the first ventilation window and the side of the second ventilation window;

a temperature sensor, configured to send a second control signal to the electromagnet, and the second control signal is used to instruct the electromagnet to open or close the first ventilation window and the second ventilation window;

The electromagnet is used to receive the second control signal from the temperature sensor, close the first ventilation window and the second ventilation window when the temperature of the target device is lower than the first predetermined temperature, and open it when the temperature of the target device is higher than the second predetermined temperature First ventilation window and second ventilation window.

It can be seen from the above technical solutions that the embodiment of the present invention has the following advantages: increase the ventilation duct and the controller, and the controller controls the opening of the ventilation windows to realize the heat dissipation function of the chassis; The function realizes the circulation and heating of the air in the box, and then realizes the overall temperature rise in the box. The function of heating up is not affected by whether the cold area of the equipment in the chassis is scattered or not. It does not need to increase the resistance, nor does it need to occupy the space of the equipment in the chassis. It can improve the temperature of the equipment in the chassis by solving the technical problem of local low temperature. Wider range of application, reduced hardware consumption, and reduced power consumption.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings that need to be used in the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention. For Those of ordinary skill in the art can also obtain other drawings based on these drawings without any creative effort.

Fig. 1 is a schematic structural diagram of a chassis according to an embodiment of the present invention;

Fig. 2 is a schematic structural diagram of a temperature control device according to an embodiment of the present invention;

FIG. 3 is a schematic diagram of a working mode of a temperature control device according to an embodiment of the present invention;

Fig. 4 is a schematic diagram of another working mode of the temperature control device according to the embodiment of the present invention.

Detailed ways

In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments . Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

An embodiment of the present invention provides a chassis, as shown in Figure 1 sectional view of the chassis, including: a housing 101 with a cavity, an air inlet 102, an air outlet 103 and a fan 104; the air inlet 102 and the air outlet 103 are arranged on the housing 101, the fan 104 is used to provide power for air to enter the inner cavity of the housing 101 from the outside of the housing 101 through the air inlet 102, and then exit the housing 101 through the air outlet 103;

Fan 104 can be the fan 104 of exhaust function also can be the fan 104 of blowing function, and fan 104 can be installed in the cavity in the shell, and the number of fan 104 also can have more than one, as long as fan 104 can provide air from shell 101 The outside enters the inner cavity of the housing 101 through the air inlet 102 , and then the power of the housing 101 exits through the air outlet 103 . Therefore, the embodiment of the present invention does not limit the type and location of the fan 104 .

The above-mentioned chassis also includes: ventilation ducts (101~104 and other structures other than 107) and a controller 107; one end of the above-mentioned ventilation ducts is airtightly connected with the air outlet 103, and the other end is airtightly connected with the air inlet 102; 102 and the position opposite to the air outlet 103 are respectively provided with a switchable first ventilation window 106 and a second ventilation window 105; the above-mentioned controller 107 is used to close the first ventilation window when the temperature of the target device is lower than the first predetermined temperature 106 and the second ventilation window 105, open the first ventilation window 106 and the second ventilation window 105 when the temperature of the target device is higher than the second predetermined temperature; the first predetermined temperature is less than or equal to the second predetermined temperature.

The above-mentioned monitoring solution for the temperature of the target device can be to directly measure the temperature of the target device; since there is a corresponding relationship between the temperature of the target device and other external locations (for example: the temperature in the ventilation duct, the temperature outside the chassis, etc.), the detection of the temperature of the target device The solution may also be to measure the temperature at other locations, and then calculate the temperature of the target device based on the temperature at other locations. The embodiment of the present invention does not limit the specific implementation of the target device temperature monitoring solution.

According to the above chassis structure, there are two working modes:

1. When the first ventilation window 106 and the second ventilation window 105 are closed, the heat circulation in the chassis is difficult to dissipate, which can play a role in heat preservation or temperature rise. The addition of electric heating elements 108 in subsequent embodiments can further play a role in temperature rise.

2. When the first ventilation window 106 and the second ventilation window 105 are opened, air can enter the inner cavity of the casing 101 from the outside of the case, and then exit the case, which can play a cooling role.

Subsequent embodiments will describe the above two working modes in more detail. The first predetermined temperature and the second predetermined temperature are used to control the switching states of the first ventilation window 106 and the second ventilation window 105 . According to the purpose of heat dissipation when the ventilation windows are all open, and the purpose of heat preservation or temperature rise when the ventilation windows are closed, those skilled in the art can understand that the two predetermined temperatures are determined according to the temperature requirements of the target equipment Yes, the specific values of the two predetermined temperatures are not limited in this embodiment of the present invention. If the first predetermined temperature is lower than the above-mentioned second predetermined temperature, the number of openings and closings of the first ventilation window 106 and the second ventilation window 105 may be reduced.

In the above embodiment, ventilation pipes and controllers are added, and the controller controls the opening of the ventilation windows to realize the heat dissipation function of the chassis; when the controller controls the ventilation windows to be closed, the function of the original fan is used to realize the circulation and heating of the air in the box, and then realize the cooling of the air in the box. Overall heating inside the case. The function of heating up is not affected by whether the cold area of the equipment in the chassis is scattered or not. It does not need to increase the resistance, nor does it need to occupy the space of the equipment in the chassis. It can improve the temperature of the equipment in the chassis by solving the technical problem of local low temperature. Wider range of application, reduced hardware consumption, and reduced power consumption.

The dotted line shown in FIG. 1 is the communication line for the controller 107 to send control-related signals to the first ventilation window 106 and the second ventilation window 105 , as well as the electric heating element 108 in the subsequent embodiments. The communication lines shown in the figure only represent the connection relationship of each part, and the specific physical location of the communication lines can be outside the ventilation duct as shown in Figure 1, or inside the ventilation duct.

Since the chassis may be used in a low temperature environment, even in an ultra-low temperature environment, in order to improve the adaptability of the chassis to the low temperature environment, the embodiment of the present invention also provides a stronger heating scheme, as shown in Figure 1, the above chassis also includes: setting The electric heating element 108 in the ventilation duct, the electric heating element 108 is connected to the power supply through a relay;

The above-mentioned controller 107 is also used to make the relay turn on the connection between the power supply and the heating element 108 when the temperature of the target device is lower than the third predetermined temperature, so that the heating element 108 heats the air flowing through the ventilation duct; When the fourth predetermined temperature is reached, the relay disconnects the connection between the power supply and the heating element 108, so that the heating element 108 is in an idle state.

The third predetermined temperature is less than or equal to the first predetermined temperature; the fourth predetermined temperature is greater than or equal to the third predetermined temperature and less than or equal to the first predetermined temperature.

The embodiment of the present invention also provides a specific implementation method for the controller 107 to control the working state of the electric heating element 108: the above-mentioned controller 107 includes: a temperature sensor and a relay;

The above-mentioned temperature sensor is used to detect the temperature of the target device, and sends a first control signal to the above-mentioned relay; the above-mentioned first control signal is used to control the relay to switch on or off the connection between the heating element 108 and the power supply.

The above-mentioned relay is used to receive the first control signal of the temperature sensor, and connect the connection between the heating element 108 and the power supply when the temperature of the target device is lower than the third predetermined temperature, so that the heating element 108 heats the air flowing through the ventilation duct; When the temperature of the target device is higher than the fourth predetermined temperature, the connection between the electric heating element 108 and the power supply is disconnected, so that the electric heating element 108 is in an idle state.

Those skilled in the art can understand that there are many ways for an entity with a control function to control the working state of the heating element, and it is not limited to the above-mentioned scheme of the controller 107. As a more economical and reliable implementation scheme, it should not be understood. To limit the embodiments of the present invention.

The embodiment of the present invention provides a specific implementation method for the controller 107 to control the switch state of the first ventilation window 106 and the second ventilation window 105: the above-mentioned controller 107 also includes: at least two electromagnets, respectively arranged on the first ventilation window 106 side and the second louver 105 side;

The above-mentioned temperature sensor is also used to send a second control signal to the above-mentioned electromagnet, and the above-mentioned second control signal is used to instruct the electromagnet to close or open the first ventilation window 106 and the second ventilation window 105;

The above-mentioned electromagnet is used to receive the second control signal from the temperature sensor, to close the first ventilation window 106 and the second ventilation window 105 when the temperature of the target device is lower than the first predetermined temperature, and to close the first ventilation window 106 and the second ventilation window 105 when the temperature of the target device is higher than the second predetermined temperature The first ventilation window 106 and the second ventilation window 105 are opened.

The embodiment of the present invention also provides a specific implementation manner in which the controller 107 controls the opening or closing of the first ventilation window 106 and the second ventilation window 105. The controller includes: a temperature sensor and at least two electromagnets, and the at least The two electromagnets are respectively arranged on the side of the first ventilation window 106 and the side of the second ventilation window 105;

The temperature sensor is used to send a second control signal to the electromagnet, and the second control signal is used to instruct the electromagnet to open or close the first ventilation window 106 and the second ventilation window 105;

The electromagnet is used to receive the second control signal from the temperature sensor, to close the first ventilation window 106 and the second ventilation window 105 when the temperature of the target device is lower than the first predetermined temperature, and to close the first ventilation window 106 and the second ventilation window 105 when the temperature of the target device is higher than the second predetermined temperature. At this time, the first ventilation window 106 and the second ventilation window 105 are opened.

It will be appreciated by those skilled in the art that there are many ways to realize the switching state of a hardware entity to control the ventilation window, and they are not limited to the use of electromagnets. Example limitations.

There are many optional schemes for the structure of the ventilation duct. The scheme of adding a cover 109 outside the casing 101 as shown in FIG. The above-mentioned ventilation duct includes: an airtight outer cover 109, a first ventilation window 106 and a second ventilation window 105;

The outer cover 109 is arranged on the outside of the outer shell 101 and there is a gap between the outer shell 101 and the outer cover 109 covers the outer shell 101 to form a closed space, and the air inlet 102 and the air outlet 103 are inside the closed space;

A switchable first ventilating window 106 and a second ventilating window 105 are respectively provided on the outer cover 109 opposite to the air inlet 102 and the air outlet 103 .

The embodiment of the present invention also provides a temperature control device, as shown in the sectional view of FIG. 2 , including: a ventilation duct (other structures than 204 and 205 in FIG. 2 ) and a controller 204;

One end of the ventilation duct has an interface 203 that is airtightly connected to the air outlet, and the other end has an interface 203 that is airtightly connected to the air inlet; Tuyere; the target device can refer to the structure of the chassis 101-104 in FIG. 1 .

A switchable first ventilation window 201 and a second ventilation window 202 are respectively provided on the ventilation duct opposite to the air inlet and the air outlet;

The controller 204 is configured to close the first ventilation window 201 and the second ventilation window 202 when the temperature of the target device is lower than the first predetermined temperature, and open the first ventilation window 201 and the second ventilation window 202 when the temperature of the target device is higher than the second predetermined temperature. Two ventilation windows 202; the above-mentioned first predetermined temperature is less than or equal to the above-mentioned second predetermined temperature.

According to the above structure, there are two working modes:

1. When the first ventilation window 201 and the second ventilation window 202 are closed, the heat circulation in the chassis is difficult to dissipate, which can play a role in keeping warm or heating up. In subsequent embodiments, adding an electric heating element 205 can further play a role in heating up.

2. When the first ventilation window 201 and the second ventilation window 202 are opened, the air can flow from the inside of the target device to the outside of the target device, which can play a cooling role.

Subsequent embodiments will describe the above two working modes in more detail. The above-mentioned first predetermined temperature and second predetermined temperature are used to control the opening and closing states of the first ventilation window 201 and the second ventilation window 202 . According to the purpose of heat dissipation when the ventilation windows are all open, and the purpose of heat preservation or temperature rise when the ventilation windows are closed, those skilled in the art can understand that the two predetermined temperatures are determined according to the temperature requirements of the target equipment Yes, the specific values of the two predetermined temperatures are not limited in this embodiment of the present invention. If the first predetermined temperature is lower than the above-mentioned second predetermined temperature, the number of opening and closing of the first ventilation window 201 and the second ventilation window 202 may be reduced.

In the above embodiment, ventilation pipes and controllers are added, and the controller controls the opening of the ventilation windows to realize the heat dissipation function of the chassis; when the controller controls the ventilation windows to be closed, the function of the original fan is used to realize the circulation and heating of the air in the box, and then realize the cooling of the air in the box. Overall heating inside the case. The function of heating up is not affected by whether the cold area of the equipment in the chassis is scattered or not. It does not need to increase the resistance, nor does it need to occupy the space of the equipment in the chassis. It can improve the temperature of the equipment in the chassis by solving the technical problem of local low temperature. Wider range of application, reduced hardware consumption, and reduced power consumption.

The dotted line among Fig. 2 is communication line, and the communication line shown in Fig. 2 only represents the connection relation of a part, and the position of this communication line can be shown in Fig. 2 outside ventilation duct, also can be the inside of ventilation duct, its The specific location is not limited in this embodiment of the present invention.

Since the target equipment may be used in a low temperature environment, or even an ultra-low temperature environment, in order to improve the adaptability of the target to the low temperature environment, the embodiment of the present invention also provides a stronger heating scheme, as shown in Figure 2, the above temperature control equipment, Also includes:

The electric heating element 205 arranged in the ventilation duct, the above electric heating element 205 is connected to the power supply through the relay;

The above-mentioned controller 204 is also used to make the relay switch on the connection between the power supply and the heating element 205 when the temperature of the target device is lower than the third predetermined temperature, so that the heating element 205 heats the air flowing through the ventilation duct; When the fourth predetermined temperature is reached, the relay disconnects the connection between the power supply and the heating element 205, so that the heating element 205 is in an idle state.

The third predetermined temperature is less than or equal to the first predetermined temperature; the fourth predetermined temperature is greater than or equal to the third predetermined temperature and less than or equal to the first predetermined temperature.

The embodiment of the present invention also provides a specific implementation method for the controller 201 to control the working state of the electric heating element 205: the above-mentioned controller 204 includes:

Temperature sensors and relays;

The above-mentioned temperature sensor is used to detect the temperature of the target device, and sends a first control signal to the above-mentioned relay; the above-mentioned first control signal is used to control the relay to switch on or off the connection between the heating element 205 and the power supply.

The above-mentioned relay is used to receive the first control signal of the temperature sensor, and connect the connection between the power supply and the heating element 205 when the temperature of the target device is lower than the third predetermined temperature, so that the heating element 205 heats the air flowing through the ventilation duct; When the temperature of the target device is higher than the fourth predetermined temperature, the connection between the power supply and the heating element 205 is disconnected, so that the heating element 205 is in an idle state.

Those skilled in the art can understand that there are many ways for an entity with a control function to control the working state of the electric heating element, and it is not limited to the above-mentioned scheme of the controller 204. As a more economical and reliable implementation scheme, it should not be understood. To limit the embodiments of the present invention.

The embodiment of the present invention provides a specific implementation method for the controller 204 to control the switch state of the first ventilation window 201 and the second ventilation window 202: the above-mentioned controller 204 also includes: at least two electromagnets, which are respectively arranged on the first ventilation window 201 side and the second louver 202 side;

The above-mentioned temperature sensor is also used to send a second control signal to the above-mentioned electromagnet, and the above-mentioned second control signal is used to instruct the electromagnet to close or open the first ventilation window 201 and the second ventilation window 202;

The above-mentioned electromagnet is used to receive the second control signal from the temperature sensor, to close the first ventilation window 201 and the second ventilation window 202 when the temperature of the target device is lower than the first predetermined temperature, and to close the first ventilation window 202 when the temperature of the target device is higher than the second predetermined temperature The first ventilation window 201 and the second ventilation window 202 are opened.

The embodiment of the present invention also provides a specific implementation manner in which the controller 201 controls the opening or closing of the first ventilation window 201 and the second ventilation window 202, the controller includes: a temperature sensor and at least two electromagnets, the at least The two electromagnets are respectively arranged on the side of the first ventilation window 201 and the side of the second ventilation window 202;

The temperature sensor is used to send a second control signal to the electromagnet, and the second control signal is used to instruct the electromagnet to open or close the first ventilation window 201 and the second ventilation window 202;

The electromagnet is used to receive the second control signal from the temperature sensor, close the first ventilation window 201 and the second ventilation window 202 when the temperature of the target device is lower than the first predetermined temperature, and close the first ventilation window 201 and the second ventilation window 202 when the temperature of the target device is higher than the second predetermined temperature. At this time, the first ventilation window 201 and the second ventilation window 202 are opened.

It will be appreciated by those skilled in the art that there are many ways to realize the switching state of a hardware entity to control the ventilation window, and they are not limited to the use of electromagnets. Example limitations.

There are many options for the ventilation duct structure of the temperature control equipment. It can be an independent structure as shown in Figure 2, or it can be as shown in Figure 1 (other structures except 101~104). The independent structure can be easily disassembled. Adopting the overall structure shown in Figure 1 can make the added temperature control equipment better match the target equipment. The temperature control equipment and the target equipment in the structure shown in Figure 1 share the pipe wall of the ventilation pipe inside the temperature control equipment, specifically: the above ventilation pipe Including: an airtight outer cover 206, a first ventilation window 201 and a second ventilation window 202;

The outer cover 206 is arranged on the outer side of the casing 101 of the chassis and there is a gap with the outer casing 101, the outer cover 206 covers the outer casing 101 to form a closed space, and the above-mentioned air inlet and air outlet are in the closed space;

A switchable first ventilating window 201 and a second ventilating window 202 are respectively provided on the outer cover 206 opposite to the positions of the air inlet and the air outlet.

As shown in Figure 3 and Figure 4, it is a schematic diagram of two working modes, wherein Figure 3 is a schematic diagram of heat preservation or heating operation, and Figure 4 is a schematic diagram of heat dissipation work.

In Figure 3, the ventilation windows of the temperature control equipment are all closed. Under the action of the fan 301, the air flow direction can refer to the direction of the dotted arrow in Figure 3, and the air forms a circulation inside the equipment and the temperature control equipment (inside the chassis). The electric heating device 302 can further heat the air, so as to realize the overall temperature rise of the equipment.

In Figure 4, the ventilation windows of the temperature control equipment are all open. Under the action of the fan 301, the air flow direction can refer to the direction of the dotted arrow in Figure 4. The cold air entering the equipment absorbs heat and is called hot air, and the hot air exits the equipment. Realize the cooling of the equipment and play the role of heat dissipation.

With the above solution, for products that have been deployed in harsh environments, protection devices can be quickly added to prevent corrosion and other phenomena without changing the original hardware facilities. And can improve the environmental specifications of the equipment.

The above are only preferred specific implementation modes of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed in the embodiments of the present invention. , should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be determined by the protection scope of the claims.

Claims (10)

1. a cabinet, comprising: shell, air intake vent, air outlet and the fan with cavity; Air intake vent and air outlet are arranged on shell, and fan, for providing air to enter enclosure cavity from the outside of shell through air intake vent, then goes out the power of shell through air outlet; It is characterized in that, also comprise:

Air pipe and controller;

One end of described air pipe is connected with air outlet is airtight, and the other end is connected with air intake vent is airtight;

On air pipe, the place relative with air intake vent and air outlet position is respectively arranged with the first ventilating window and the second ventilating window that can switch;

Described controller, for cut out the first ventilating window and the second ventilating window during lower than the first predetermined temperature in target device temperature, opens the first ventilating window and the second ventilating window during higher than the second predetermined temperature in target device temperature; Described the first predetermined temperature is less than or equal to described the second predetermined temperature.

2. cabinet according to claim 1, is characterized in that, also comprises:

Be arranged at the electric heating element in air pipe, described electric heating element is connected with power supply by relay;

Described controller, also in target device temperature, make during lower than the 3rd predetermined temperature relay switch on power with electric heating element between be connected, make the flow through air of air pipe of electric heating element heating; In target device temperature, make being connected between relay deenergization and electric heating element during higher than the 4th predetermined temperature, make electric heating element in idle condition.

3. cabinet according to claim 2, is characterized in that, described controller comprises:

Temperature sensor and relay;

Described temperature sensor, for detection of target device temperature, sends the first control signal to described relay; Described the first control signal is switched on or switched off being connected between electric heating element and power supply for control relay;

Described relay, for receiving the first control signal of temperature sensor, connects being connected between electric heating element and power supply during lower than the 3rd predetermined temperature in target device temperature, make the flow through air of air pipe of electric heating element heating; In target device temperature, disconnect being connected between electric heating element and power supply during higher than the 4th predetermined temperature, make electric heating element in idle condition.

4. cabinet according to claim 3, is characterized in that, described controller also comprises: at least two electromagnet, are arranged at respectively the first ventilation reveal and the second ventilation reveal;

Described temperature sensor, also, for sending the second control signal to described electromagnet, described the second control signal is used to indicate electromagnet and closes or open the first ventilating window and the second ventilating window;

Described electromagnet, for receiving the second control signal of temperature sensor, in target device temperature, close the first ventilating window and the second ventilating window during lower than the first predetermined temperature, in target device temperature, open the first ventilating window and the second ventilating window during higher than the second predetermined temperature.

5. according to cabinet described in claim 1 or 2, it is characterized in that, described controller comprises:

Temperature sensor and at least two electromagnet, described at least two electromagnet are arranged at respectively the first ventilation reveal and the second ventilation reveal;

Temperature sensor, for sending the second control signal to described electromagnet, described the second control signal is used to indicate electromagnet and opens or close the first ventilating window and the second ventilating window;

Described electromagnet, for receiving the second control signal of temperature sensor, in target device temperature, close the first ventilating window and the second ventilating window during lower than the first predetermined temperature, in target device temperature, open the first ventilating window and the second ventilating window during higher than the second predetermined temperature.

6. a temperature control device, is characterized in that, comprising: air pipe and controller;

One end of described air pipe has and the airtight interface being connected of air outlet, and the other end has and the airtight interface being connected of air intake vent; Described air outlet and air intake vent are air outlet and the air intake vent of the cabinet of the target device that will install of described temperature control device;

On air pipe, the place relative with air intake vent and air outlet position is respectively arranged with the first ventilating window and the second ventilating window that can switch;

Described controller, for cut out the first ventilating window and the second ventilating window during lower than the first predetermined temperature in target device temperature, opens the first ventilating window and the second ventilating window during higher than the second predetermined temperature in target device temperature; Described the first predetermined temperature is less than or equal to described the second predetermined temperature.

7. temperature control device according to claim 6, is characterized in that, also comprises:

Be arranged at the electric heating element in air pipe, described electric heating element is connected with power supply by relay;

Described controller, also in target device temperature, make during lower than the 3rd predetermined temperature relay switch on power with electric heating element between be connected, make the flow through air of air pipe of electric heating element heating; In target device temperature, make being connected between relay deenergization and electric heating element during higher than the 4th predetermined temperature, make electric heating element in idle condition.

8. temperature control device according to claim 7, is characterized in that, described controller comprises:

Temperature sensor and relay;

Described temperature sensor, for detection of target device temperature, sends the first control signal to described relay; Described the first control signal is switched on or switched off being connected between electric heating element and power supply for control relay;

Described relay, for receiving the first control signal of temperature sensor, connects being connected between electric heating element and power supply during lower than the 3rd predetermined temperature in target device temperature, make the flow through air of air pipe of electric heating element heating; In target device temperature, disconnect being connected between electric heating element and power supply during higher than the 4th predetermined temperature, make electric heating element in idle condition.

9. temperature control device according to claim 8, is characterized in that, described controller also comprises: at least two electromagnet, are arranged at respectively the first ventilation reveal and the second ventilation reveal;

Described temperature sensor, also, for sending the second control signal to described electromagnet, described the second control signal is used to indicate electromagnet and closes or open the first ventilating window and the second ventilating window;

Described electromagnet, for receiving the second control signal of temperature sensor, in target device temperature, close the first ventilating window and the second ventilating window during lower than the first predetermined temperature, in target device temperature, open the first ventilating window and the second ventilating window during higher than the second predetermined temperature.

10. according to temperature control device described in claim 6 or 7, it is characterized in that, described controller comprises:

Temperature sensor and at least two electromagnet, described at least two electromagnet are arranged at respectively the first ventilation reveal and the second ventilation reveal;

Temperature sensor, for sending the second control signal to described electromagnet, described the second control signal is used to indicate electromagnet and opens or close the first ventilating window and the second ventilating window;

Described electromagnet, for receiving the second control signal of temperature sensor, in target device temperature, close the first ventilating window and the second ventilating window during lower than the first predetermined temperature, in target device temperature, open the first ventilating window and the second ventilating window during higher than the second predetermined temperature.

Images