Thermal management system for vehicle and vehicle

Abstract

The utility model discloses a thermal management system for a vehicle and the vehicle, the thermal management system comprises an integration unit, the integration unit is provided with a first heat exchange part and a second heat exchange part; a refrigerant flow channel is formed in the first heat exchange component, and a water cooling flow channel suitable for exchanging heat with the refrigerant flow channel is formed in the second heat exchange component. And the discharging device is arranged on the integrated unit, a discharging opening communicating with the refrigerant flow channel is formed in the discharging device, and the discharging device is suitable for opening the discharging opening to discharge the refrigerant in the refrigerant flow channel when the vehicle collides. According to the heat management system, the first heat exchange component and the second heat exchange component are integrated into an integrated unit, the integration degree of the heat management system is improved, the volume of a refrigerant flow channel is reduced, the refrigerant filling amount is reduced, meanwhile, by arranging the discharging device, refrigerants are discharged to the outside in time to be diluted when vehicles collide, the refrigerants are prevented from being on fire, and the service life of the vehicle is prolonged. And the vehicle safety is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle thermal management, in particular to a thermal management system for a vehicle and the vehicle. Background Art

[0002] In the prior art, in the thermal management system of a vehicle, the layout of the various components is relatively scattered, and the connections between the various components are made by pipe connections, which increases the flow channel volume of the thermal management system and leads to an increase in the amount of refrigerant added. Since the refrigerant is flammable and explosive, a large amount of refrigerant added will cause safety hazards, and when the vehicle collides, the refrigerant in the refrigerant flow channel will catch fire, affecting the safety of the passengers. Therefore, how to optimize the structure of the vehicle thermal management system so that the refrigerant can be handled promptly and effectively when the vehicle collides to avoid refrigerant fire has become a problem that needs to be urgently solved in this field. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the utility model is to propose a thermal management system for a vehicle. The thermal management system of the utility model integrates a first heat exchange component and a second heat exchange component into an integrated unit, thereby improving the integration of the thermal management system, reducing the volume of the refrigerant flow channel, and reducing the amount of refrigerant added. At the same time, by providing a discharge device, the refrigerant is discharged to the outside in time for dilution when the vehicle collides, thereby avoiding refrigerant fire and improving vehicle safety.

[0004] The utility model also provides a vehicle with the thermal management system.

[0005] According to the utility model, a thermal management system for a vehicle comprises: an integrated unit, which is provided with a first heat exchange component and a second heat exchange component; wherein a refrigerant flow channel is formed inside the first heat exchange component, and a water-cooling flow channel suitable for exchanging heat with the refrigerant flow channel is formed inside the second heat exchange component; a discharge device, which is arranged in the integrated unit and has a discharge port connected to the refrigerant flow channel, and the discharge device is suitable for opening the discharge port to discharge the refrigerant in the refrigerant flow channel when a vehicle collision occurs.

[0006] According to the thermal management system for a vehicle of the utility model, the first heat exchange component and the second heat exchange component are integrated into an integrated unit, so that the refrigerant flow channel inside the integrated unit can be shortened, thereby reducing the refrigerant capacity in the refrigerant flow channel. Since the refrigerant is flammable and explosive, the length of the refrigerant flow channel is shortened, the refrigerant capacity is reduced, the layout and maintenance of the refrigerant flow channel are facilitated, the quality of the refrigerant flow channel is improved, and the risk of refrigerant leakage is reduced. In addition, a discharge device is provided on the integrated unit, and the discharge device can open the discharge port when the vehicle collides and discharge the refrigerant to the outside for dilution, thereby avoiding refrigerant combustion caused by vehicle collision and improving the safety of the entire vehicle.

[0007] According to some embodiments of the utility model, the thermal management system also includes: a collision detection device, which is arranged on the vehicle body and is suitable for sending a collision signal when the vehicle collides; wherein the exhaust device is electrically connected to the collision detection device and is suitable for opening the exhaust port after receiving the collision signal.

[0008] According to some embodiments of the present invention, the discharge device is arranged outside the integrated unit.

[0009] According to some embodiments of the utility model, the first heat exchange component includes: a compressor, a plate heat exchanger and a liquid reservoir, the plate heat exchanger and the liquid reservoir are integrally arranged and located on one side of the length direction of the compressor, the plate heat exchanger and the liquid reservoir form refrigerant flow channels that are connected to each other, and a return flow channel connected to the refrigerant flow channel is formed inside the compressor; the discharge device includes: a valve seat, the valve seat is arranged on one side of the width direction of the compressor, a discharge channel connected to the return flow channel is formed inside the valve seat, and the outlet of the discharge channel is constructed as the discharge port; a discharge valve, the discharge valve is arranged on the side of the valve seat away from the compressor and can be selectively opened to discharge the refrigerant from the discharge port.

[0010] According to some embodiments of the present utility model, the discharge device further includes: a discharge pipe, which is disposed on the valve seat, one end of which is connected to the discharge port, and the other end of which extends to the outside of the vehicle body.

[0011] According to some embodiments of the present invention, the discharge valve is configured as a solenoid valve.

[0012] According to some embodiments of the present invention, the second heat exchange component includes: a condenser, a subcooler and an evaporator, the condenser, the subcooler and the evaporator are arranged on the top of the plate heat exchanger and the liquid reservoir in sequence, and the condenser, the subcooler and the evaporator are integrated with the liquid reservoir.

[0013] According to some embodiments of the present invention, the thermal management system further includes: a refrigerant valve, the refrigerant valve is structured in multiple numbers and is respectively connected to the refrigerant flow channel, and the refrigerant valve is suitable for controlling the circulation of the refrigerant in the refrigerant flow channel.

[0014] According to some embodiments of the present invention, the thermal management system further includes: an integrated controller, which is electrically connected to the integrated unit and is suitable for controlling the opening or closing of the integrated unit.

[0015] The vehicle according to the present utility model is briefly described below.

[0016] The vehicle according to the utility model includes the thermal management system described in any one of the above-mentioned embodiments. Since the vehicle according to the utility model includes the thermal management system described in any one of the above-mentioned embodiments, the thermal management system in the vehicle of the utility model integrates the first heat exchange component and the second heat exchange component into an integrated unit, reducing the size of the thermal management system, shortening the volume of the refrigerant flow channel, and reducing the amount of refrigerant added. In addition, by providing an emission device, the refrigerant can be discharged to the outside in time for dilution when the vehicle collides, thereby avoiding vehicle fire and improving the safety performance of the vehicle.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0019] Figure 1 is a structural diagram of a thermal management system according to an embodiment of the utility model;

[0020] Figure 2 is a schematic diagram of the assembly of a thermal management system and a vehicle body according to an embodiment of the utility model;

[0021] Figure 3 It is a schematic diagram of a first return air passage and a second return air passage in a compressor in a thermal calendar system according to an embodiment of the utility model;

[0022] Figure 4 It is a schematic diagram of a refrigerant discharge route in a thermal management system according to an embodiment of the utility model.

[0023] Reference numerals:

[0024] Thermal management system 1;

[0025] Compressor 111, first return air passage 1111, second return air passage 1112, first protrusion 1113, second protrusion 1114, plate heat exchanger 112, liquid storage tank 113;

[0026] Discharge device 12, valve seat 121, discharge valve 122, discharge pipe 123;

[0027] Condenser 131, subcooler 132, evaporator 133;

[0028] A first refrigerant valve 141 and a second refrigerant valve 142;

[0029] Integrated controller 15 , high voltage connector 151 , low voltage connector 152 ; support frame 161 , buffer pad 162 . DETAILED DESCRIPTION

[0030] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0031] In the prior art, in the thermal management system of a vehicle, the layout of the various components is relatively scattered, and the connections between the various components are made by pipe connections, which increases the flow channel volume of the thermal management system and leads to an increase in the amount of refrigerant added. Since the refrigerant is flammable and explosive, a large amount of refrigerant added will cause safety hazards, and when the vehicle collides, the refrigerant in the refrigerant flow channel will catch fire, affecting the safety of the passengers. Therefore, how to optimize the structure of the vehicle thermal management system so that the refrigerant can be handled promptly and effectively when the vehicle collides to avoid refrigerant fire has become a problem that needs to be urgently solved in this field.

[0032] Reference below Figure 1-Figure 4 A thermal management system for a vehicle according to an embodiment of the present invention is described.

[0033] According to the utility model, a thermal management system 1 for a vehicle comprises: an integrated unit and a discharge device 12, wherein the integrated unit is provided with a first heat exchange component and a second heat exchange component; wherein a refrigerant flow channel is formed inside the first heat exchange component, and a water-cooling flow channel suitable for exchanging heat with the refrigerant flow channel is formed inside the second heat exchange component; the discharge device 12 is arranged in the integrated unit and is provided with a discharge port connected to the refrigerant flow channel, and the discharge device 12 is suitable for opening the discharge port to discharge the refrigerant in the refrigerant flow channel when a collision occurs in the vehicle.

[0034] Specifically, the thermal management system 1 for a vehicle of the utility model is mainly connected to the vehicle's electric drive system, battery system, and temperature control system or dehumidification system in the passenger compartment, and effective temperature control of the vehicle's electric drive system, battery system, and passenger compartment is achieved by utilizing the refrigerant in the thermal management system 1 for heat exchange.

[0035] Among them, the thermal management system 1 for a vehicle of the utility model includes an integrated unit, in which a first heat exchange component and a second heat exchange component are arranged, a refrigerant flow channel is formed inside the first heat exchange component, and a water-cooling flow channel is formed inside the second heat exchange component. The refrigerant realizes heat exchange by phase change. For example, the refrigerant is in a liquid state under low temperature and low pressure. After the liquid refrigerant absorbs heat, it gradually turns into a gaseous state, but it has not yet been completely vaporized at this time to form a gas-liquid mixture. After the liquid refrigerant absorbs heat in the air, its temperature and pressure will rise. At this time, the refrigerant begins to turn into a gaseous state. The gaseous refrigerant exchanges heat with air or water, releases heat and gradually cools to a liquid state. The refrigerant in the refrigerant flow channel absorbs or releases heat through phase change. A water-cooling flow channel suitable for heat exchange with the refrigerant in the refrigerant flow channel is formed inside the second heat exchange component. The water in the water-cooling flow channel realizes temperature regulation by heat exchange with the refrigerant flow channel, thereby realizing effective temperature control of the vehicle's electric drive system, battery system, and passenger compartment.

[0036] In the present application, the first heat exchange component and the second heat exchange component are integrated into an integrated unit, which is beneficial to reducing the size of the thermal management system 1 and achieving miniaturization. In addition, the first heat exchange component and the second heat exchange component are integrated into an integrated unit, so that the refrigerant flow channel inside the integrated unit can be shortened, thereby reducing the refrigerant capacity in the refrigerant flow channel. Since the refrigerant is flammable and explosive, the length of the refrigerant flow channel is shortened, the capacity of the refrigerant is reduced, the layout and maintenance of the refrigerant flow channel are facilitated, the quality of the refrigerant flow channel is improved, and the risk of refrigerant leakage is reduced. At the same time, the refrigerant filling amount can be greatly reduced and the structural strength of the integrated unit can be increased, thereby improving the safety of the thermal management system 1.

[0037] An exhaust device 12 is provided on the integrated unit, and the exhaust device 12 is connected to the refrigerant flow channel. A exhaust port suitable for discharging the refrigerant in the refrigerant flow channel is formed on the exhaust device 12. Since the refrigerant is flammable and explosive, when the vehicle collides, the refrigerant in the integrated unit is prone to catch fire and cause safety problems. Therefore, the exhaust device 12 is provided on the integrated unit, and the exhaust device 12 is connected to the refrigerant flow channel. When the vehicle collides, the exhaust device 12 can discharge the refrigerant from the exhaust port and discharge the refrigerant to the air flowing area outside the integrated unit. The refrigerant is mixed with the air outside the integrated unit, and is completely diluted by the outside air, thereby reducing the risk of combustion and explosion of the refrigerant inside the thermal management system 1 and improving the safety performance of the entire vehicle.

[0038] Among them, the discharge device 12 can guide the refrigerant to the outside of the vehicle body, and the air flow speed outside the vehicle body is faster, which is conducive to accelerating the dilution efficiency of the refrigerant. At the same time, when the vehicle collides, the integrated unit can be controlled to be closed. After closing the integrated unit, the refrigerant will not continue to circulate in the integrated unit for heat exchange, which is conducive to the concentrated discharge of the refrigerant in the refrigerant flow channel through the discharge device 12, thereby improving the discharge efficiency of the refrigerant and further ensuring the safety of the vehicle.

[0039] According to the thermal management system 1 for a vehicle of the utility model, the first heat exchange component and the second heat exchange component are integrated into an integrated unit, so that the refrigerant flow channel inside the integrated unit can be shortened, thereby reducing the refrigerant capacity in the refrigerant flow channel. Since the refrigerant is flammable and explosive, the length of the refrigerant flow channel is shortened, the refrigerant capacity is reduced, the arrangement and maintenance of the refrigerant flow channel are facilitated, the quality of the refrigerant flow channel is improved, and the risk of refrigerant leakage is reduced. In addition, a discharge device 12 is provided on the integrated unit. The discharge device 12 can open the discharge port when the vehicle collides and discharge the refrigerant to the outside for dilution, thereby avoiding refrigerant combustion caused by vehicle collision and improving the safety of the entire vehicle.

[0040] In some embodiments, a refrigerant temperature sensor and a pressure sensor can be installed on the integrated unit. The refrigerant temperature sensor and the pressure sensor are connected to the refrigerant flow channel and are suitable for monitoring the refrigerant pressure and temperature in the refrigerant flow channel. When the discharge device 12 is opened and the refrigerant is discharged, the refrigerant temperature sensor and the pressure sensor monitor the refrigerant status in real time. When it is detected that the temperature and pressure of the refrigerant reach the preset value, there is no need to continue to discharge the refrigerant. The discharge device 12 can be closed to avoid excessive discharge of the refrigerant and cause waste of the refrigerant.

[0041] According to some embodiments of the present invention, the thermal management system 1 also includes a collision detection device, which is arranged on the vehicle body and is suitable for sending a collision signal when the vehicle collides; wherein the exhaust device 12 is electrically connected to the collision detection device and is suitable for opening the exhaust port after receiving the collision signal.

[0042] Specifically, a collision detection device is provided on the vehicle body. When the vehicle collides head-on or sideways, or when the vehicle is about to collide, the collision detection device can promptly send out a collision signal, wherein the collision detection device is electrically connected to the discharge device 12. The discharge device 12 can open the discharge port to discharge the refrigerant upon receiving the collision signal sent by the collision detection device. By electrically connecting the discharge device 12 to the collision detection device, the discharge device 12 must open the discharge port to discharge the refrigerant only after receiving the collision signal, thereby ensuring that the discharge device 12 remains closed when the vehicle is in a normal state, and the discharge device 12 will not affect the operation of the integrated unit, thereby ensuring the working efficiency of the heat exchange system. Furthermore, by electrically connecting the discharge device 12 to the collision detection device, the response speed of the discharge device 12 can be accelerated, thereby realizing timely and rapid discharge of the refrigerant.

[0043] In some embodiments, the collision detection device can be constructed as an acceleration sensor and a collision sensor. The acceleration sensor and the collision sensor can send a collision signal when a vehicle collides, and can also judge the possibility of a collision when the vehicle is about to collide, and alert the people in the vehicle to improve vehicle safety.

[0044] According to some embodiments of the present invention, the discharge device 12 is disposed outside the integrated unit.

[0045] Specifically, the discharge device 12 is arranged on the outside of the integrated unit, and specifically can be the outside of the first heat exchange component, which is convenient for the arrangement and installation of the discharge device 12, and also convenient for the maintenance and inspection of the discharge device 12. The discharge device 12 is connected to the refrigerant flow channel. When the discharge device 12 is closed, the discharge device 12 will not affect the circulation of the refrigerant inside the integrated unit, thereby ensuring the stable operation of the integrated unit. When the discharge device 12 is turned on and the refrigerant is discharged, since the discharge device 12 is arranged outside the integrated unit, it is more convenient to drain and discharge the refrigerant to the outside of the vehicle body, thereby improving the discharge efficiency and dilution efficiency of the refrigerant.

[0046] According to some embodiments of the present invention, the first heat exchange component includes a compressor 111, a plate heat exchanger 112 and a liquid reservoir 113, the plate heat exchanger 112 and the liquid reservoir 113 are integrally arranged and located on one side of the length direction of the compressor 111, the plate heat exchanger 112 and the liquid reservoir 113 form refrigerant flow channels that are connected to each other, and the compressor 111 forms a return flow channel that is connected to the refrigerant flow channel; the discharge device 12 includes: a valve seat 121, the valve seat 121 is arranged on one side of the width direction of the compressor 111, the valve seat 121 forms a discharge channel that is connected to the return flow channel, and the outlet of the discharge channel is configured as a discharge port; the discharge valve 122, the discharge valve 122 is arranged on the side of the valve seat 121 away from the compressor 111 and can be selectively opened to discharge the refrigerant from the discharge port.

[0047] Specifically, the compressor 111 is mainly used to compress the low-pressure gaseous refrigerant into a high-pressure gaseous refrigerant, and the plate heat exchanger 112 and the liquid reservoir 113 are mainly used to realize temperature control. The plate heat exchanger 112 and the liquid reservoir 113 are arranged in one piece, and the plate heat exchanger 112 and the liquid reservoir 113 are placed on one side of the length direction of the compressor 111, which improves the integration and structural strength of the compressor 111, the plate heat exchanger 112 and the liquid reservoir 113, is conducive to improving the total volume of the refrigerant flow channel inside the compressor 111, the plate heat exchanger 112 and the liquid reservoir 113, and is convenient for reducing the refrigerant filling amount. Furthermore, by integrating the compressor 111, the plate heat exchanger 112 and the liquid reservoir 113 Integrating into a whole, that is, the compressor 111, the plate heat exchanger 112 and the liquid reservoir 113 are directly connected to realize the assembly of the thermal management system 1, that is, the connection of the internal refrigerant flow channel. Compared with using connecting pipes to connect various components, the number of connecting pipes is reduced, the integration of the thermal management system 1 is improved, and the total volume of the flow channel of the thermal management system 1 is reduced, the risk of refrigerant leakage is reduced, and the safety of the thermal management system 1 is improved. In addition, the compressor 111 is used as an integrated assembly, and the plate heat exchanger 112 and the liquid reservoir 113 are used as another integrated assembly. The integrated assembly between the two major assemblies can save the assembly time of the thermal management system 1 and meet the hierarchical assembly of the assembly line.

[0048] Refrigerant flow channels that are connected to each other are provided in the plate heat exchanger 112 and the liquid reservoir 113. The refrigerant flows into the refrigerant flow channels in the plate heat exchanger 112 and the liquid reservoir 113 from the compressor 111, and exchanges heat with the coolant in the water-cooled flow channels. After the heat exchange is completed, the refrigerant returns to the compressor 111, completing a cycle.

[0049] Among them, the plate heat exchanger 112 and the liquid reservoir 113 are stacked to improve the functional integration of the plate heat exchanger 112 and the liquid reservoir 113. By utilizing the structural characteristics of the plate heat exchanger 112, that is, the plates are closely arranged, the plate heat exchanger 112 occupies a smaller area and space than other types of heat exchangers. The liquid reservoir 113 and the plate heat exchanger 112 can be connected as a whole by, for example, integral brazing.

[0050] A return flow channel connected to the refrigerant flow channel is formed inside the compressor 111. The low-temperature and low-pressure gaseous refrigerant flows from the low-pressure side to the high-pressure side through the return flow channel to form a high-temperature and high-pressure gaseous refrigerant. The high-temperature and high-pressure gaseous refrigerant enters the plate heat exchanger 112 and the refrigerant flow channel in the liquid storage tank 113 through the compressor 111 for heat exchange to generate low-temperature and low-pressure gaseous refrigerant. The low-temperature and low-pressure gaseous refrigerant flows back to the compressor 111 through the return flow channel to complete a cycle.

[0051] In some embodiments, a connected high-pressure chamber and a low-pressure chamber are provided in the shell of the compressor 111 to form a return air flow passage. The high-pressure chamber is provided close to the plate heat exchanger 112 and the liquid reservoir 113 to ensure that the generated high-temperature and high-pressure gaseous refrigerant flows to the plate heat exchanger 112 and the liquid reservoir 113 in the shortest path, thereby reducing the loss of heat and pressure, and simplifying the flow path between the plate heat exchanger 112, the liquid reservoir 113 and the compressor 111.

[0052] The return air flow channel includes a first return air flow channel 1111 and a second return air flow channel 1112. Figure 3 As shown, a first protrusion 1113 is provided on the compressor 111, and a first return airflow duct 1111 is formed inside the first protrusion 1113. The first protrusion 1113 is used as a processing carrier of the first return airflow duct 1111, so that the first return airflow duct 1111 is connected to the low-pressure chamber to ensure the normal operation of the refrigeration and heating cycles. Compared with the use of connecting pipes to connect the plate heat exchanger, the liquid storage tank and the compressor 111, the number of connecting pipes is effectively reduced, the integration of the compressor 111 is improved, the occupied space is reduced, and at the same time, the reliable circulation of the refrigerant is ensured.

[0053] A second protrusion 1114 is also provided on the compressor 111, and a second return air flow duct 1112 connecting the high-pressure chamber and the low-pressure chamber is formed inside the second protrusion 1114. The second protrusion 1114 serves as a processing carrier of the second return air flow duct 1112 to form the second return air flow duct 1112 passing through the high-pressure chamber and the low-pressure chamber, which helps to improve the flow path integration inside the compressor 111, and can also cause another part of the refrigerant that has not reached high temperature and high pressure to re-circulate through the second return air flow duct 1112 when a part of the refrigerant flowing out of the high-pressure chamber flows toward the plate heat exchanger 112 and the liquid storage tank 113, which helps to increase the refrigerant flow rate flowing through the compressor 111 and improve the output power of the compressor 111.

[0054] In the solution of the utility model, the discharge device 12 is arranged on the housing of the compressor 111 and communicates with the first return flow passage 1111. The discharge device 12 discharges the refrigerant through a refrigerant discharge line such as Figure 4 shown.

[0055] According to some embodiments of the utility model, the discharge device 12 includes a valve seat 121 and a discharge valve 122. The valve seat 121 is arranged on one side of the compressor 111 in the width direction. A discharge channel connected to the return flow channel is formed inside the valve seat 121, and the outlet of the discharge channel is configured as a discharge port. The discharge valve 122 is arranged on the side of the valve seat 121 away from the compressor 111 and can be selectively opened to discharge the refrigerant from the discharge port.

[0056] like Figure 1As shown, a valve seat 121 is provided on the shell of the compressor 111, and a discharge channel connected to the return flow channel is formed inside the valve seat 121. The discharge valve 122 can be connected to the valve seat 121 through a thread and a sealing ring. The assembly is simple, and by setting a sealing ring, the sealing between the valve seat 121 and the discharge valve 122 can be ensured to avoid refrigerant leakage.

[0057] A discharge channel connected to the return flow channel is formed inside the valve seat 121, and the outlet of the discharge channel is constructed as a discharge port. The discharge valve 122 opens after receiving the collision signal, and controls the refrigerant to flow from the cooling flow channel into the discharge channel and be discharged to the outside through the discharge port, wherein the discharge port is arranged on the side of the valve seat 121, which is more conducive to the discharge of the refrigerant. The discharge valve 122 is arranged on the side of the valve seat 121 away from the compressor 111. The installation and disassembly of the discharge valve 122 will not affect the arrangement of the compressor 111, the plate heat exchanger 112 and the liquid reservoir 113, and the arrangement position of the discharge valve 122 is more reasonable.

[0058] According to some embodiments of the present invention, the discharge device 12 further includes a discharge pipe 123 , which is disposed on the valve seat 121 , one end of the discharge pipe 123 is connected to the discharge port, and the other end of the discharge pipe 123 extends to the outside of the vehicle body.

[0059] like Figure 1 and Figure 2 As shown, a discharge pipe 123 is provided at the discharge port of the valve seat 121. One end of the discharge pipe 123 is connected to the discharge port, and the other end is led out to the outside of the vehicle body. The refrigerant is guided by the discharge pipe 123, and the refrigerant is discharged to the outside of the vehicle body in conjunction with the discharge valve 122, thereby accelerating the dilution of the refrigerant, avoiding the refrigerant from being directly discharged into the thermal management system 1 and catching fire, and improving the safety of the entire vehicle.

[0060] According to some embodiments of the present invention, the discharge valve 122 is configured as a solenoid valve.

[0061] Specifically, compared with valve body structures of other structures, the solenoid valve can be electrically connected to the collision detection device to achieve automatic control. The solenoid valve has a simple structure, low price, and lower installation and maintenance costs. The solenoid valve has good sealing performance and fast switching. After the solenoid valve receives a collision command, it can open quickly and discharge the refrigerant to the outside to improve safety. The solenoid valve remains closed when no collision command is received to avoid refrigerant leakage. The solenoid valve can adjust parameters such as the flow rate and flow rate of the refrigerant, and the accuracy and flexibility of use can be guaranteed.

[0062] According to some embodiments of the present invention, the second heat exchange component includes a condenser 131, a subcooler 132 and an evaporator 133. The condenser 131, the subcooler 132 and the evaporator 133 are arranged on the top of the plate heat exchanger 112 and the liquid reservoir 113 in sequence. The condenser 131, the subcooler 132 and the evaporator 133 are integrated with the liquid reservoir 113.

[0063] Specifically, the second heat exchange component includes a condenser 131, a subcooler 132 and an evaporator 133. Figure 1 As shown, the liquid reservoir 113 is located between the condenser 131 and the evaporator 133. The refrigerant flowing out of the condenser 131 is in a gas-liquid mixed state. By utilizing the built-in flow channel of the liquid reservoir 113, the liquid refrigerant and the liquid refrigerant can be separated in the liquid reservoir 113, and then the liquid refrigerant flows out through the bottom corner hole of the liquid reservoir 113 and flows to the evaporator 133, thereby ensuring the evaporation amount of the evaporator 133, ensuring that the refrigerant expands in the evaporator 133 and fully absorbs the heat of the coolant, thereby improving the heat exchange efficiency between the refrigerant flow channel and the water-cooling flow channel.

[0064] The water-cooling channel flowing through the condenser 131 can be used to control the temperature and humidity in the passenger compartment, and the water-cooling channel flowing through the evaporator 133 can be used to control the temperature of the battery system and the temperature and humidity in the passenger compartment. The remaining water-cooling channels can be equipped with additional plate heat exchangers 112 or independent external radiators to control the temperature of the electric drive system so that the various functional systems of the vehicle can be in good operating condition, ensuring the driving and riding comfort of the driver and passengers, while also ensuring the stable and reliable operation of the vehicle.

[0065] Placing the liquid reservoir 113 between the condenser 131 and the evaporator 133, and rationally designing the flow paths between the liquid reservoir 113, the condenser 131 and the evaporator 133, and ensuring that the flow paths between the condenser 131 and the liquid reservoir 113, and between the liquid reservoir 113 and the evaporator 133 are as short as possible, helps to simplify the flow paths in the plate heat exchanger 112 and the liquid reservoir 113, avoid excessive loss of pressure and heat due to a too long flow path, and improve the flow smoothness of the refrigerant and the heat exchange efficiency with the corresponding coolant.

[0066] Among them, a liquid storage tank 113 is arranged between the subcooler 132 and the evaporator 133, or between the subcooler 132 and the condenser 131. The setting of the subcooler 132 can perform secondary heat exchange between the condensed saturated liquid and the coolant, further increasing the subcooling degree of the refrigerant and reducing the flash gas generated by the refrigerant during the throttling process, thereby helping to increase the evaporation amount of the evaporator 133 and improve the heat exchange efficiency.

[0067] According to some embodiments of the present invention, the thermal management system 1 further includes: a refrigerant valve, the refrigerant valve is structured in multiples and is respectively connected to the refrigerant flow channel, and the refrigerant valve is suitable for controlling the circulation of the refrigerant in the refrigerant flow channel.

[0068] Specifically, in order to achieve flow regulation of the refrigerant in the evaporator 133, a refrigerant valve is further provided in the thermal management system 1. The refrigerant valve is constructed in multiple structures, among which a first refrigerant valve 141 is provided at the inlet of the evaporator 133. On the one hand, the flow of the refrigerant entering the evaporator 133 is controlled to ensure that the refrigerant flowing out of the outlet of the evaporator 133 is in a gaseous state, thereby reducing the content of liquid refrigerant, thereby reducing the possibility of liquid hammer when the refrigerant enters the compressor 111, thereby ensuring the cooling capacity of the evaporator 133 and improving the heat exchange efficiency. On the other hand, the low-temperature and high-pressure liquid refrigerant can be throttled by the first refrigerant valve 141 to become a low-temperature and low-pressure mist liquid refrigerant, thereby meeting the evaporation conditions of the refrigerant and thereby improving the evaporation heat absorption efficiency.

[0069] In order to achieve flow regulation and pressure regulation of the refrigerant entering the low-pressure chamber from the return air flow duct, a second refrigerant valve 142 is provided on the compressor 111. The second refrigerant valve 142 is used to control the flow rate of the refrigerant from the return air flow duct to the low-pressure chamber, and to control the low-temperature and high-pressure refrigerant to become a low-temperature and low-pressure refrigerant.

[0070] Among them, when the vehicle collides, the collision detection device sends a collision signal, the compressor 111 stops working, and the first refrigerant valve 141 and the second refrigerant valve 142 are opened at the same time, so that the refrigerant can flow freely in the return flow channel and the refrigerant flow channel, and the discharge valve 122 discharges the refrigerant more efficiently.

[0071] According to some embodiments of the present invention, the thermal management system 1 further includes: an integrated controller 15 , which is electrically connected to the integrated unit and is suitable for controlling the opening or closing of the integrated unit.

[0072] Specifically, the integrated controller 15 is arranged on the side of the compressor 111 away from the plate heat exchanger 112. The integrated controller 15 is used to connect to the vehicle power supply and control the opening and closing of the compressor 111. The integrated controller 15 is arranged on the side of the compressor 111 away from the plate heat exchanger 112 and the liquid reservoir 113, and the installation space of the integrated unit is reasonably utilized, which can effectively reduce the space occupied by the thermal management system 1, free up space for the assembly of other components, and reduce interference.

[0073] A connector for connecting a power source is provided on the integrated controller 15 , and the connector includes a high-voltage connector 151 and a low-voltage connector 152 which are arranged at intervals from top to bottom.

[0074] In some embodiments, the thermal management system 1 of the present invention further includes a support component, such as Figure 1 and Figure 2 As shown, the support assembly is arranged at the bottom of the first heat exchange component and the second heat exchange component to support the first heat exchange component and the second heat exchange component, wherein the support assembly includes a support frame 161, a buffer pad 162 and other structures, the support frame 161 is arranged at the bottom of the first heat exchange component and the second heat exchange component, and the buffer pad 162 is arranged at one end of the support frame 161 away from the first heat exchange component and the second heat exchange component, so as to improve the overall support effect and vibration reduction effect.

[0075] The vehicle according to the present utility model is briefly described below.

[0076] The vehicle according to the utility model includes the thermal management system 1 described in any one of the above-mentioned embodiments. Since the vehicle according to the utility model includes the thermal management system 1 described in any one of the above-mentioned embodiments, the thermal management system 1 in the vehicle of the utility model integrates the first heat exchange component and the second heat exchange component into an integrated unit, reducing the size of the thermal management system 1, shortening the volume of the refrigerant flow channel, and reducing the amount of refrigerant added. In addition, by setting the discharge device 12, the refrigerant can be discharged to the outside in time for dilution when the vehicle collides, thereby avoiding vehicle fire, and the vehicle has better safety performance.

[0077] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0078] In the description of the present invention, "first feature" or "second feature" may include one or more of the features.

[0079] In the description of the present invention, "plurality" means two or more.

[0080] In the description of the present invention, a first feature being “above” or “below” a second feature may include that the first and second features are directly in contact with each other, or may include that the first and second features are not in direct contact but are in contact with each other via another feature therebetween.

[0081] In the description of the present invention, a first feature “above”, “over” and “above” a second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature.

[0082] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0083] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A thermal management system for a vehicle, characterized in that: include: An integrated unit, wherein the integrated unit is provided with a first heat exchange component and a second heat exchange component; in A refrigerant flow channel is formed inside the first heat exchange component, and a water cooling flow channel suitable for exchanging heat with the refrigerant flow channel is formed inside the second heat exchange component; A discharge device is provided in the integrated unit and is formed with a discharge port communicated with the refrigerant flow channel, and is suitable for opening the discharge port to discharge the refrigerant in the refrigerant flow channel when a vehicle collision occurs.

2. The thermal management system for a vehicle according to claim 1, characterized in that: Also includes: A collision detection device, the collision detection device being arranged on the vehicle body and being adapted to send out a collision signal when a collision occurs in the vehicle; Wherein, the discharge device is electrically connected to the collision detection device and is suitable for opening the discharge port after receiving a collision signal.

3. The thermal management system for a vehicle according to claim 2, characterized in that: The discharge device is arranged outside the integrated unit.

4. The thermal management system for a vehicle according to claim 1, characterized in that: The first heat exchange component includes: a compressor, a plate heat exchanger and a liquid reservoir. The plate heat exchanger and the liquid reservoir are integrally arranged and located on one side of the length direction of the compressor. The plate heat exchanger and the liquid reservoir form refrigerant flow channels that are connected to each other. The compressor forms a return flow channel that is connected to the refrigerant flow channel.

5. The thermal management system for a vehicle according to claim 4, characterized in that: The discharge device comprises: A valve seat, the valve seat being arranged at one side in the width direction of the compressor, a discharge channel communicating with the return flow channel being formed inside the valve seat, and an outlet of the discharge channel being configured as the discharge port; A discharge valve is arranged on a side of the valve seat away from the compressor and can be selectively opened to discharge the refrigerant from the discharge port.

6. The thermal management system for a vehicle according to claim 5, characterized in that: The discharge device further includes a discharge pipe, which is disposed on the valve seat, one end of which is communicated with the discharge port, and the other end of which extends to the outside of the vehicle body.

7. The thermal management system for a vehicle according to claim 5, characterized in that: The discharge valve is designed as a solenoid valve.

8. The thermal management system for a vehicle according to claim 4, characterized in that: The second heat exchange component includes: a condenser, a subcooler and an evaporator. The condenser, the subcooler and the evaporator are sequentially arranged on the top of the plate heat exchanger and the liquid reservoir. The condenser, the subcooler and the evaporator are integrally arranged with the liquid reservoir.

9. The thermal management system for a vehicle according to claim 1, characterized in that: Also includes: A refrigerant valve is structured in multiple numbers and is respectively connected to the refrigerant flow channel. The refrigerant valve is suitable for controlling the flow of refrigerant in the refrigerant flow channel.

10. The thermal management system for a vehicle according to claim 1, characterized in that: Also includes: An integrated controller is electrically connected to the integrated unit and is suitable for controlling the opening or closing of the integrated unit.

11. A vehicle, characterized in that: A thermal management system comprising any one of claims 1-10.

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