Seat heating control system and vehicle

Abstract

The utility model provides a seat heating control system which is applied to a vehicle provided with a seat and comprises an air conditioner circulation branch and a heat pump circulation branch, the air conditioner circulation branch comprises an evaporator, a compressor and a condenser, the compressor is provided with an outlet and used for compressing low-pressure gas into high-pressure gas, and the condenser is provided with a heat pump. The condenser is used for converting high-pressure gas into high-pressure liquid, and the evaporator is used for evaporating the high-pressure liquid into low-pressure gas; the heat pump circulation branch is located between the compressor and the condenser, communicates with the compressor and comprises a first electronic throttle valve and a heat exchanger, and the first electronic throttle valve is located between the outlet and the heat exchanger and used for controlling communication or separation of the compressor and the heat exchanger; when the compressor is communicated with the heat exchanger, one part of high-pressure gas output through the outlet flows into the heat exchanger for heat exchange to generate heat to heat the seat, and the other part of the high-pressure gas is converted into high-pressure liquid through the condenser and evaporated into low-pressure gas through the evaporator. In addition, the utility model further provides a vehicle.

Description

Technical Field

[0001] The present application relates to the field of vehicle technology, and in particular to a seat heating control system and a vehicle. Background Art

[0002] In winter, the temperature is low, and the seats in the passenger compartment are affected by the ambient temperature, and the surface temperature will be relatively low, which will affect the riding comfort of the driver or passengers. At present, many high-end cars use seat heating control systems to improve the riding comfort of the seats. This type of seat heating control system generally uses electric heating wires to heat the seats. However, using electric heating wires to heat the seats will increase the power consumption of the vehicle, resulting in an increase in the load and power consumption of the vehicle's generator, thereby increasing the vehicle's fuel consumption or power consumption, which is not conducive to the vehicle's economy, power and environmental protection. Utility Model Content

[0003] In view of this, it is necessary to provide a seat heating control system and a vehicle, so as to reduce the energy consumption of the vehicle by heating the seat through the gas in the air conditioning circulation of the vehicle.

[0004] In a first aspect, an embodiment of the present application provides a seat heating control system, which is applied to a vehicle equipped with the seat, and the seat heating control system includes an air conditioning circulation branch and a heat pump circulation branch. The air conditioning circulation branch is used to realize the conversion of low-pressure gas and high-pressure gas, and includes an evaporator, a compressor and a condenser connected in sequence. The compressor is provided with an outlet, and the compressor is used to compress the low-pressure gas into the high-pressure gas and output it to the condenser through the outlet. The condenser is used to convert the high-pressure gas into a high-pressure liquid and output it to the evaporator. The evaporator is used to evaporate the high-pressure liquid into the low-pressure gas. and outputs it to the compressor; a heat pump circulation branch is located between the compressor and the condenser, the heat pump circulation branch is connected to the compressor, and includes a first electronic throttle valve and a heat exchanger arranged on the seat, the first electronic throttle valve is located between the outlet and the heat exchanger, and is used to control the connection or isolation between the compressor and the heat exchanger; when the compressor is connected to the heat exchanger, a part of the high-pressure gas output through the outlet flows into the heat exchanger for heat exchange to generate heat to heat the seat, and the other part is converted into the high-pressure liquid through the condenser and evaporated into the low-pressure gas through the evaporator.

[0005] Preferably, the air conditioning circulation branch also includes an expansion valve, the condenser is connected to the evaporator through the expansion valve, the expansion valve is used to adjust the flow rate of the high-pressure liquid and expand the high-pressure liquid into a low-pressure liquid, and the low-pressure liquid evaporates into the low-pressure gas through the evaporator.

[0006] Preferably, the air-conditioning circulation branch also includes a second electronic throttle valve, the outlet is connected to the condenser through the second electronic throttle valve, and the second electronic throttle valve is used to control the connection or isolation between the compressor and the condenser; when the compressor is connected to the heat exchanger, another part of the high-pressure gas output through the outlet flows into the condenser.

[0007] Preferably, the heat exchanger includes an upper heat exchange layer, a lower heat exchange layer, and a first water chamber and a second water chamber connected to both sides of the upper heat exchange layer and the lower heat exchange layer, respectively. The upper heat exchange layer and the lower heat exchange layer are respectively provided with a plurality of heat exchange tubes at intervals. The first water chamber and the second water chamber are used to input heat exchange medium into the heat exchange tubes to exchange heat with the high-pressure gas. The first water chamber is provided with a heat exchanger inlet, and the second water chamber is provided with a heat exchanger outlet.

[0008] Preferably, the upper heat exchange layer is close to the seat, and the outlet is also connected to the heat exchanger inlet through the first electronic throttle valve.

[0009] Preferably, the upper heat exchange layer and the lower heat exchange layer are arranged in parallel, and each heat exchange tube is vertically arranged between the first water chamber and the second water chamber.

[0010] Preferably, the first water chamber and the second water chamber are respectively provided with a first input port and a second input port for inputting the heat exchange medium, the first input port and the heat exchanger inlet are located on the same side of the first water chamber, and the second input port and the heat exchanger outlet are located on the same side of the second water chamber.

[0011] Preferably, the heat exchanger outlet is located between the condenser and the expansion valve, so that the high-pressure gas in the heat exchanger flows out from the heat exchanger outlet and then flows into the evaporator through the expansion valve to evaporate into the low-pressure gas.

[0012] Preferably, the vehicle has a plurality of seats, and each seat is provided with a corresponding heat exchanger and a first electronic throttle valve to control the connection or isolation between the corresponding heat exchanger and the compressor.

[0013] In a second aspect, an embodiment of the present application provides a vehicle, wherein the vehicle is provided with seats, and the vehicle includes a body, and the above-mentioned seat heating control system arranged on the body.

[0014] The above-mentioned seat heating control system and vehicle use the high-pressure gas compressed by the compressor of the air-conditioning circulation branch, and control the first electronic throttle valve that can connect the air-conditioning circulation branch and the heat pump circulation branch to allow part of the high-pressure gas to flow into the heat exchanger, and then heat the seat by heat exchange in the heat exchanger. When the high-pressure gas flowing into the heat exchanger flows out of the heat exchanger, it can flow back into the compressor through the air-conditioning circulation branch and the heat pump circulation branch to form high-pressure gas to realize the circulation of the gas in the air-conditioning circulation branch, and realize heating when the seat surface temperature is low without increasing the additional consumption for heating, thereby improving the economy, power and environmental protection of the vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0016] Figure 1 This is a schematic diagram of the internal structure of the seat heating control system provided in the first embodiment of the present application.

[0017] Figure 2 A three-dimensional diagram of a heat exchanger provided in an embodiment of the present application.

[0018] Figure 3 This is a front view of the heat exchanger provided in an embodiment of the present application.

[0019] Figure 4 A top view of a heat exchanger provided in an embodiment of the present application.

[0020] Figure 5 A schematic diagram of the internal structure of a seat heating control system provided in the second embodiment of the present application.

[0021] Figure 6 This is a schematic diagram of the internal structure of the seat heating control system provided in the third embodiment of the present application.

[0022] Figure 7 A schematic diagram of a vehicle provided in accordance with an embodiment of the present application.

[0023] Component number

[0024] Vehicle 1000 Second input port 321

[0025] Seat heating control system 100, 100', upper heat exchange layer 33

[0026] 100”, 100”'

[0027] Heat pump circulation branch 10 upper heat exchange tube 331

[0028] Air conditioning circulation branch 20 Lower heat exchange layer 34

[0029] Body 30 Lower heat exchange tube 341

[0030] Seat 40 First water chamber 35

[0031] Temperature sensor 1 Second water chamber 36

[0032] Compressor 2 First electronic throttle valve 4

[0033] Inlet 21 Second electronic throttle valve 4'

[0034] Exit 22 Controller 5

[0035] Heat exchanger 3 Condenser 6

[0036] Heat exchanger inlet 31 Expansion valve 7

[0037] First input port 311 Evaporator 8

[0038] Heat exchanger outlet 32

[0039] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0040] In the description of the present invention, it needs to be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" indicate directions or positional relationships based on the directions or positional relationships described in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0041] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implying the number of technical features indicated by the term. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the feature. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0042] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0043] In order to make the content of the utility model more clearly and more accurately understood, it will now be described in detail with reference to the accompanying drawings. The accompanying drawings in the specification illustrate examples of embodiments of the utility model, wherein the same reference numerals represent the same elements. It is understood that the scales shown in the accompanying drawings in the specification are not the scales of the actual implementation of the utility model, which are only for the purpose of illustration and are not drawn according to the original size.

[0044] Please see Figure 1 , which is a schematic diagram of the internal structure of the seat heating control system provided in the first embodiment of the present application. The present application provides a seat heating control system 100. The seat heating control system 100 is applied to a vehicle provided with seats. Vehicles include but are not limited to fuel vehicles, pure electric vehicles, hybrid vehicles, etc. In the present application, the seat heating control system 100 utilizes the circulation of the vehicle's refrigerant (refrigerant) in different forms in the vehicle to achieve seat heating and complete the refrigerant circulation, thereby improving the economy, power and environmental protection of the vehicle. The specific features of each component in the seat heating control system 100 will be specifically described below.

[0045] like Figure 1 As shown, the seat heating control system 100 includes an air conditioning circulation branch 20 and a heat pump circulation branch 10. Among them, the air conditioning circulation branch 20 stores refrigerant. The air conditioning circulation branch 20 is used to realize the conversion of low-pressure gas and high-pressure gas, and then realize the conversion of refrigerant in the air conditioning circulation branch 20 to release heat or absorb heat. Among them, low-pressure gas and high-pressure gas are different forms of refrigerant in the air conditioning circulation branch 20. In addition, the refrigerant can also exist in the form of high-pressure liquid and / or low-pressure liquid according to the position of the pipeline in the air conditioning circulation branch 20 and the position of the component where it is located, so as to release a large amount of heat, or absorb a large amount of heat from the vehicle. The specific features of each component in the air conditioning circulation branch 20 will be described in detail below.

[0046] In the first embodiment, the air conditioning circulation branch 20 includes an evaporator 8, a compressor 2 and a condenser 6 which are connected in sequence. Among them, the compressor 2 is provided with an inlet 21 and an outlet 22. The compressor 2 is used to compress the low-pressure gas into a high-pressure gas and output it to the condenser 6 through the outlet 22. At the same time, the low-pressure gas will also form a high-temperature gas after being compressed by the compressor 2, that is, the high-pressure gas output by the compressor 2 also has the characteristic of high temperature. The condenser 6 is used to convert the high-pressure gas into a high-pressure liquid and output it to the evaporator 8. The evaporator 8 is used to evaporate the high-pressure liquid into a low-pressure gas and output it to the compressor 2. The present application heats the seat by diverting the high-pressure gas through the heat pump circulation branch 10. The specific features of each component in the heat pump circulation branch 10 will be specifically described below.

[0047] In the first embodiment, the heat pump circulation branch 10 is located between the compressor 2 and the condenser 6. The heat pump circulation branch 10 is connected to the compressor 2 to divert the high-pressure gas, and then combined with the refrigerant circulation of the air-conditioning circulation branch 20 to achieve seat heating. In the present application, the heat pump circulation branch 10 includes a first electronic throttle valve 4 and a heat exchanger 3 arranged on the seat. Among them, the first electronic throttle valve 4 is located between the outlet 22 and the heat exchanger 3. The first electronic throttle valve 4 is used to control the connection or isolation between the compressor 2 and the heat exchanger 3. Specifically, the heat exchanger 3 is provided with a heat exchanger inlet 31 and a heat exchanger outlet 32, and the first electronic throttle valve 4 is used to connect or isolate the outlet 22 and the heat exchanger inlet 31. When the compressor 2 is connected to the heat exchanger 3, part of the high-pressure gas output through the outlet 22 flows into the heat exchanger 3 for heat exchange to generate heat to heat the seat, and the other part is converted into high-pressure liquid through the condenser 6 and evaporated into low-pressure gas through the evaporator 8, so as to heat the seat while facilitating the circulation of the refrigerant in the air conditioning circulation branch 20 in the gas form. In addition, when the high-pressure gas output through the outlet 22 does not flow into the heat exchanger 3 for heat exchange, it can also be input into the condenser 6 to achieve that the high-pressure gas that does not flow into the heat exchanger 3 can still flow into the heat exchanger 3 for heat exchange after passing through the air conditioning circulation branch 20, thereby improving the utilization rate of the vehicle refrigerant. When the compressor 2 is isolated from the heat exchanger 3, all the high-pressure gas output through the outlet 22 is converted into high-pressure liquid through the condenser 6 and evaporated into low-pressure gas through the evaporator 8 to keep the refrigerant in the air conditioning circulation branch 20 to complete the circulation. The specific features of the heat exchanger 3 will be described in detail below.

[0048] Furthermore, the air conditioning circulation branch 20 also includes an expansion valve 7. The condenser 6 is connected to the evaporator 8 through the expansion valve 7. The expansion valve 7 is used to adjust the flow rate of the high-pressure liquid and expand the high-pressure liquid into a low-pressure liquid. The low-pressure liquid evaporates into a low-pressure gas through the evaporator 8.

[0049] In the first embodiment, the air conditioning circulation branch 20 further includes a second electronic throttle valve 4'. The outlet 22 is connected to the condenser 6 through the second electronic throttle valve 4'. The second electronic throttle valve 4' is used to control whether the compressor 2 is connected or disconnected from the condenser 6. Specifically, when the compressor 2 is connected to the condenser 6, another part of the high-pressure gas output through the outlet 22 flows into the condenser 6 and is converted into a high-pressure liquid. When the compressor 2 is disconnected from the condenser 6, all the high-pressure gas output through the outlet 22 flows into the heat exchanger 3. The specific features of the heat exchanger 3 will be described in detail below.

[0050] Please see Figure 2-Figure 4 , Figure 2 A three-dimensional diagram of a heat exchanger provided in an embodiment of the present application, Figure 3 This is a front view of the heat exchanger provided in the embodiment of the present application. Figure 4 A top view of a heat exchanger provided in an embodiment of the present application.

[0051] like Figure 2-Figure 4 As shown, the heat exchanger 3 is roughly rectangular. The heat exchanger 3 includes an upper heat exchange layer 33, a lower heat exchange layer 34, and a first water chamber 35 and a second water chamber 36 connected to both sides of the upper heat exchange layer 33 and the lower heat exchange layer 34, respectively. Among them, the upper heat exchange layer 33 and the lower heat exchange layer 34 are respectively provided with a plurality of heat exchange tubes, that is, the upper heat exchange layer 33 includes a plurality of upper heat exchange tubes 331, and the lower heat exchange layer 34 includes a plurality of lower heat exchange tubes 341. The first water chamber 35 and the second water chamber 36 are used to input heat exchange medium into the heat exchange tube to exchange heat with the high-pressure gas. Among them, the heat exchange medium at least includes water to improve the heat transfer effect of the high-pressure gas to the storage part 35 of the heat exchanger 3. The heat exchange medium can also be other media with good heat absorption effect, such as steam, air, etc., which will not be repeated here. The first water chamber 35 is provided with a heat exchanger inlet 31. The second water chamber 36 is provided with a heat exchanger outlet 32. The upper heat exchange layer 33 is close to the seat. The outlet 22 is also connected to the heat exchanger inlet 31 through the first electronic throttle valve 4 .

[0052] It can be understood that when high-pressure gas flows into the heat exchanger 3 through the heat exchanger inlet 31, heat exchange can be performed simultaneously in the upper heat exchange layer 33 and the lower heat exchange layer 34, so as to prevent the upper heat exchange layer 33 close to the seat from overheating the seat when the temperature of the high-pressure gas is too high, thereby preventing damage to the seat. In addition, the upper heat exchange tube 331 and the lower heat exchange tube 341 are not provided with fins, which can reduce damage to the seat and reduce the heat loss of the high-pressure gas entering from the heat exchanger inlet 31 of the first water chamber 35 due to the fins enhancing the heat transfer between the heat exchange tubes, thereby further improving the heating effect of the heat exchanger 3 on the seat.

[0053] In the first embodiment, the upper heat exchange layer 33 and the lower heat exchange layer 34 are arranged in parallel. Each heat exchange tube is vertically arranged between the first water chamber 35 and the second water chamber 36. The heat exchanger 3 is lower in the middle and higher on both sides to match the shape of the seat and is arranged on the seat, thereby improving the heating efficiency of the heat exchanger 3 on the seat as a whole. In the present application, the upper heat exchange tube 331 and the lower heat exchange tube 341 are heat exchange tubes of the same specifications. The first water chamber 35 and the second water chamber 36 are water chambers of the same specifications.

[0054] Furthermore, the first water chamber 35 and the second water chamber 36 are respectively provided with a first input port 311 and a second input port 321 for inputting heat exchange medium. The first input port 311 and the heat exchanger inlet 31 are located on the same side of the first water chamber 35. The second input port 321 and the heat exchanger outlet 32 ​​are located on the same side of the second water chamber 36.

[0055] In the first embodiment, the heat exchanger outlet 32 ​​is located between the condenser 6 and the expansion valve 7, so that the high-pressure gas flows out from the heat exchanger outlet 32 ​​and flows into the evaporator 8 through the expansion valve 7 to evaporate into a low-pressure gas, and then flows back into the compressor 2 through the inlet 21 to be recompressed into a high-pressure gas and flow into the heat exchanger 3 for heat exchange, thereby improving the environmental friendliness of the seat heating.

[0056] Please see Figure 5 , which is a schematic diagram of the structure of a seat heating control system provided in the second embodiment of the present application.

[0057] like Figure 5 As shown, the difference between the seat heating control system 100' provided in the second embodiment and the seat heating control system 100 provided in the first embodiment is that the seat heating control system 100' provided in the second embodiment controls the opening or closing of the first electronic throttle valve 4 by the surface temperature of the seat, thereby controllably connecting or disconnecting the compressor 2 and the heat exchanger 3. Specifically, the seat heating control system 100' provided in the second embodiment senses the surface temperature of the seat through the temperature sensor 1. The temperature sensor 1 can be set at a corresponding position of the vehicle according to the sensing needs, such as the seat surface, under the seat, etc.

[0058] In the second embodiment, the seat heating control system 100' controls the first electronic throttle valve 4 to perform different operations, such as opening, increasing (decreasing) the gas flow, closing, etc., through the controller 5. Specifically, the controller 5 includes a judgment unit and a control unit (the judgment unit and the control unit are not shown). The judgment unit is used to judge whether the surface temperature is lower than the preset heating temperature. When it is judged that the surface temperature is lower than the preset heating temperature, the control unit is used to control the first electronic throttle valve 4 to open so that the high-pressure gas in the compressor 2 enters the heat exchanger 3 to achieve heat exchange and temperature rise to heat the seat, that is, the controller 5 can be used to control the first electronic throttle valve 4 to conduct when the seat needs to be heated so that the high-pressure gas enters the heat exchanger 3, thereby starting the heating process of the seat. When it is judged that the surface temperature reaches the preset cut-off temperature, the control unit is used to control the first electronic throttle valve 4 to close, so that the high-pressure gas in the compressor 2 cannot enter the heat exchanger 3, thereby closing the heating process of the seat.

[0059] Further, when the judgment unit judges that the surface temperature of the seat is greater than the preset heating temperature and less than the preset cut-off temperature, the control unit is also used to control the first electronic throttle valve 4 to adjust the flow of the high-pressure gas flowing into the heat exchanger 3. Specifically, when it is judged that the surface temperature is greater than the preset adjustment temperature and less than the preset cut-off temperature, the control unit controls the first electronic throttle valve 4 to reduce the flow so as to reduce the flow of the high-pressure gas flowing into the heat exchanger 3. Among them, the preset heating temperature, the preset adjustment temperature and the preset cut-off temperature are all used to adjust the temperature of the first electronic throttle valve 4, that is, the first electronic throttle valve 4 can perform operations such as opening and increasing the flow, reducing the flow, and closing according to the different measured surface temperatures, thereby adjusting the heating of the seat. Among them, the preset heating temperature is the temperature that needs to be heated to improve the comfort of the seat when the surface temperature of the seat is too low. The preset cut-off temperature is the temperature at which the seat temperature is high enough and overheating needs to be avoided. The preset adjustment temperature is greater than the preset heating temperature and less than the preset cut-off temperature.

[0060] For example, the preset heating temperature, the preset adjustment temperature and the preset cut-off temperature are set to 10°C, 20°C and 30°C respectively. When the judgment unit judges that the surface temperature sensed by the temperature sensor 1 is lower than 10°C, the temperature sensor 1 transmits the working signal to the controller 5. After the controller 5 receives the working signal, the control unit controls the first electronic throttle valve 4 to open, so that the high-pressure gas flows through the heat exchanger 3, thereby heating the seat. When the judgment unit judges that the surface temperature sensed by the temperature sensor 1 rises to 20°C, the control unit controls the first electronic throttle valve 4 to reduce the flow of the high-pressure gas flowing into the heat exchanger 3 to prevent the seat from being overheated. When the judgment unit judges that the surface temperature sensed by the temperature sensor 1 rises to 30°C, the controller 5 controls the first electronic throttle valve 4 to close, so that the high-pressure gas cannot flow into the heat exchanger 3, thereby stopping the heating of the seat to ensure the comfort of the seat.

[0061] In the above embodiment, the heat pump circulation branch 10 is controlled by the controller 5. The vehicle has multiple seats. The seat heating control system 100 provided in the present application can also realize heating of multiple seats. The following will explain how to realize heating of multiple seats through specific embodiments.

[0062] Please see Figure 6 , which is a schematic diagram of the structure of a seat heating control system provided in the third embodiment of the present application.

[0063] like Figure 6 As shown, the difference between the seat heating control system 100" provided in the third embodiment and the seat heating control system 100' provided in the second embodiment is that the seat heating control system 100" provided in the third embodiment includes an air conditioning circulation branch 20 and a plurality of heat pump circulation branches 10. Specifically, each seat is provided with a corresponding heat exchanger 3, a first electronic throttle valve 4 and a temperature sensor 1. Each temperature sensor 1 senses the surface temperature of the corresponding seat. Each first electronic throttle valve 4 controls the connection or isolation of the corresponding heat exchanger 3 with the compressor 2. At the same time, the controller 5 can also adjust the flow rate of the high-pressure gas flowing into the corresponding heat exchanger 3 through each first electronic throttle valve 4 according to the surface temperature of each seat, and then adjust the heating process of each seat to be heated according to the different surface temperatures of different seats.

[0064] Please see Figure 7 , which is a schematic diagram of a vehicle provided in an embodiment of the present application. The present application also provides a vehicle 1000. The vehicle 1000 is provided with a seat 40. The vehicle 1000 includes a vehicle body 30, and a seat heating control system 100'' arranged on the vehicle body 30. The seat heating control system 100'' is at least the same as one or more of the seat heating control system 100, the seat heating control system 100', and the seat heating control system 100" of the above embodiments, and will not be described in detail here.

[0065] In the above embodiment, the high-pressure gas is compressed by the compressor of the air-conditioning circulation branch, and a part of the high-pressure gas is allowed to flow into the heat exchanger by controlling the first electronic throttle valve that can connect the air-conditioning circulation branch and the heat pump circulation branch, and then the seat is heated by heat exchange in the heat exchanger. When the high-pressure gas that flows into the heat exchanger flows out of the heat exchanger, it can flow back into the compressor through the air-conditioning circulation branch and the heat pump circulation branch to form high-pressure gas to realize the circulation of the gas in the air-conditioning circulation branch, and heating can be achieved when the surface temperature of the seat is low without increasing the additional consumption for heating, thereby improving the economy, power and environmental protection of the vehicle.

[0066] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

[0067] The above examples are only preferred embodiments of the present invention, and certainly cannot be used to limit the scope of the present invention. Therefore, equivalent changes made according to the claims of the present invention still fall within the scope covered by the present invention.

Claims

1. A seat heating control system, applied to a vehicle equipped with the seat, characterized in that: The seat heating control system comprises: An air conditioning circulation branch, used for realizing the conversion between low-pressure gas and high-pressure gas, comprising an evaporator, a compressor and a condenser connected in sequence, wherein the compressor is provided with an outlet, the compressor is used for compressing the low-pressure gas into the high-pressure gas and outputting it to the condenser through the outlet, the condenser is used for converting the high-pressure gas into a high-pressure liquid and outputting it to the evaporator, and the evaporator is used for evaporating the high-pressure liquid into the low-pressure gas and outputting it to the compressor; A heat pump circulation branch is located between the compressor and the condenser. The heat pump circulation branch is connected to the compressor and includes a first electronic throttle valve and a heat exchanger arranged on the seat. The first electronic throttle valve is located between the outlet and the heat exchanger and is used to control the connection or isolation between the compressor and the heat exchanger. When the compressor is connected to the heat exchanger, a part of the high-pressure gas output through the outlet flows into the heat exchanger for heat exchange to generate heat to heat the seat, and the other part is converted into the high-pressure liquid through the condenser and evaporated into the low-pressure gas through the evaporator.

2. The seat heating control system according to claim 1, characterized in that: The air conditioning circulation branch also includes an expansion valve, and the condenser is connected to the evaporator through the expansion valve. The expansion valve is used to adjust the flow rate of the high-pressure liquid and expand the high-pressure liquid into a low-pressure liquid. The low-pressure liquid evaporates into the low-pressure gas through the evaporator.

3. The seat heating control system according to claim 2, characterized in that: The air-conditioning circulation branch also includes a second electronic throttle valve, and the outlet is connected to the condenser through the second electronic throttle valve. The second electronic throttle valve is used to control the connection or isolation between the compressor and the condenser; when the compressor is connected to the heat exchanger, another part of the high-pressure gas output through the outlet flows into the condenser.

4. The seat heating control system according to claim 3, characterized in that: The heat exchanger includes an upper heat exchange layer, a lower heat exchange layer, and a first water chamber and a second water chamber connected to both sides of the upper heat exchange layer and the lower heat exchange layer, respectively. The upper heat exchange layer and the lower heat exchange layer are respectively provided with a plurality of heat exchange tubes at intervals. The first water chamber and the second water chamber are used to input heat exchange medium into the heat exchange tubes to exchange heat with the high-pressure gas. The first water chamber is provided with a heat exchanger inlet, and the second water chamber is provided with a heat exchanger outlet.

5. The seat heating control system according to claim 4, characterized in that: The upper heat exchange layer is close to the seat, and the outlet is also connected to the heat exchanger inlet through the first electronic throttle valve.

6. The seat heating control system according to claim 4, characterized in that: The upper heat exchange layer and the lower heat exchange layer are arranged in parallel, and each heat exchange tube is vertically arranged between the first water chamber and the second water chamber.

7. The seat heating control system according to claim 4, characterized in that: The first water chamber and the second water chamber are respectively provided with a first input port and a second input port for inputting the heat exchange medium, the first input port and the heat exchanger inlet are located on the same side of the first water chamber, and the second input port and the heat exchanger outlet are located on the same side of the second water chamber.

8. The seat heating control system according to claim 4, characterized in that: The heat exchanger outlet is located between the condenser and the expansion valve, so that the high-pressure gas in the heat exchanger flows out from the heat exchanger outlet and then passes through the expansion valve into the evaporator to evaporate into the low-pressure gas.

9. The seat heating control system according to any one of claims 1 to 8, characterized in that: The vehicle has a plurality of seats, and each seat is provided with a corresponding heat exchanger and a first electronic throttle valve to control the corresponding heat exchanger to be connected to or disconnected from the compressor.

10. A vehicle, provided with a seat, characterized in that: The vehicle comprises: body; and The seat heating control system according to claim 9 is provided on the vehicle body.

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