Compressor, thermal management system and vehicle

Abstract

A compressor, a thermal management system and a vehicle. The compressor comprises a shell, a compression component and a heat insulation assembly, the shell accommodates the compression component, the heat insulation assembly is arranged on the peripheral face of the shell in a surrounding mode, a first cavity is formed in the heat insulation assembly, and the first cavity surrounds the peripheral face of the shell. The first cavity is arranged outside the shell of the compressor, the compressor can be cooled by inputting heat exchange fluid into the first cavity, the cooling efficiency of the compressor can be improved, and the reliability and the energy utilization rate of the heat management system are effectively improved.

Description

Technical Field

[0001] The present application relates to the technical field of vehicles, and particularly relates to a compressor, a thermal management system and a vehicle. Background Art

[0002] In recent years, with the rapid development of economy and technology, energy crisis and environmental pollution are becoming important issues affecting the survival and development of mankind, and energy conservation and environmental protection have gradually become the mainstream. In the case of high-temperature refrigeration working conditions, the temperature of the traditional compressor itself, the IPM temperature, etc. will become higher, thereby passively restricting the rotational speed of the compressor and reducing the reliability of the thermal management system. Summary of the Utility Model

[0003] The purpose of the present application is to provide a compressor, a thermal management system and a vehicle to solve the problem of compressor heat dissipation.

[0004] In a first aspect, the present application provides a compressor, which includes a housing, a compression component and a heat insulation component. The housing houses the compression component, and the heat insulation component is disposed around the outer peripheral surface of the housing. The heat insulation component forms a first chamber, and the first chamber surrounds the outer peripheral surface of the housing.

[0005] In combination with the first aspect, in a possible implementation manner, the heat insulation component further forms a second chamber, the second chamber surrounds the first chamber, and the first chamber and the second chamber are not communicated with each other.

[0006] In combination with the first aspect, in a possible implementation manner, when the compressor is in communication with the refrigeration branch, both the first chamber and the second chamber are filled with a heat-exchanging fluid; and / or when the compressor is in communication with the heating branch, the second chamber is filled with a heat-exchanging fluid.

[0007] In combination with the first aspect, in a possible implementation manner, the heat insulation component includes a first enclosure and a second enclosure. The first enclosure and the second enclosure are sequentially and spaced apart around the outer peripheral surface of the housing. The first enclosure and the outer peripheral surface of the housing form the first chamber, and the second enclosure and the surface of the first enclosure facing away from the housing form the second chamber.

[0008] In a second aspect, the present application provides a thermal management system, which includes a cooling water circuit, a refrigeration branch and a compressor provided in any implementation manner of the first aspect. Both the cooling water circuit and the refrigeration branch are connected to the compressor; when the refrigeration branch is in communication with the compressor, the cooling water circuit is in communication with the first chamber of the compressor and is used to cool the fluid input into the first chamber.

[0009] In combination with the second aspect, in a possible implementation, it further includes a heating water circuit and a heating branch, both the heating water circuit and the heating branch are connected to the compressor; the heat insulation assembly further forms a second chamber that surrounds the first chamber, and the first chamber and the second chamber are not in communication with each other; when the heating branch is in communication with the compressor, the heating water circuit is in communication with the second chamber so that the fluid output from the second chamber exchanges heat with the refrigerant in the heating branch.

[0010] In combination with the second aspect, in a possible implementation, when the refrigeration branch is in communication with the compressor, the cooling water circuit is also in communication with the second chamber of the compressor to cool the fluid input into the second chamber.

[0011] In combination with the second aspect, in a possible implementation, the cooling water circuit is provided with a radiator, and the radiator is used to cool the fluid entering the first chamber and / or the second chamber of the compressor.

[0012] In combination with the second aspect, in a possible implementation, the refrigeration branch includes an evaporator, a first heat exchanger, and a first electronic expansion valve, and the compressor, the first heat exchanger, the first electronic expansion valve, and the evaporator are connected in sequence to form a refrigeration circuit.

[0013] In combination with the second aspect, in a possible implementation, the heating branch is provided with a second heat exchanger, and the second heat exchanger is connected to both the cooling water circuit and the heating water circuit; when the heating branch is in communication with the compressor, the fluid in the heating water circuit is adapted to exchange heat with the refrigerant in the heating branch through the second heat exchanger.

[0014] In combination with the second aspect, in a possible implementation, the heating branch further includes an in-vehicle condenser and a second electronic expansion valve, and the compressor, the in-vehicle condenser, the second electronic expansion valve, and the second heat exchanger are connected in sequence to form a heating circuit.

[0015] In a third aspect, the present application provides a vehicle, which includes a compressor provided in any implementation manner of the first aspect, or a thermal management system provided in any implementation manner of the second aspect.

[0016] In this application, by arranging a first chamber outside the housing of the compressor, heat dissipation of the compressor can be achieved by inputting a cooled fluid into the first chamber, which is beneficial to improving the heat dissipation efficiency of the compressor. When operating in a high-temperature environment, the limitation on the rotational speed of the compressor can be reduced, which is beneficial to improving the reliability of the thermal management system. In addition, introducing the fluid into the first chamber can also reduce the noise during the operation of the compressor, improve the comfort of the vehicle's noise, vibration, and harshness (NVH), and enhance the customer experience. Description of the Drawings

[0017] To more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0018] Figure 1 Schematic structural diagram of a vehicle provided by an embodiment of the present application;

[0019] Figure 2 Schematic diagram of the thermal management system in the refrigeration mode provided by an embodiment of the present application;

[0020] Figure 3 Schematic diagram of the thermal management system in the heating mode provided by an embodiment of the present application;

[0021] Figure 4 Schematic three-dimensional structure diagram of a compressor provided by an embodiment of the present application;

[0022] Figure 5 For Figure 4 Schematic cross-sectional view of the compressor shown along line IV-IV;

[0023] Figure 6 For Figure 5 Front view of the compressor shown.

[0024] Explanation of the reference numerals:

[0025] 10 - Compressor, 11 - Housing, 12 - Compression Component, 13 - Thermal Insulation Assembly, 131 - First Chamber, 132 - Second Chamber, 133 - First Enclosure, 134 - Second Enclosure, 20a - Cooling Water Circuit, 20b - Heating Water Circuit, 21 - Radiator, 22a - Water Pump, 22b - Auxiliary Water Tank, 23 - High - Pressure System, 24 - Five - Way Valve, 25 - First Ball Valve, 26 - Second Ball Valve, 40 - Refrigeration Branch, 41 - Evaporator, 42 - First Heat Exchanger, 43 - First Electronic Expansion Valve, 44 - Third Solenoid Valve, 45 - Fourth Solenoid Valve, 46 - Check Valve, 50 - Heating Branch, 51 - Second Heat Exchanger, 52 - First Solenoid Valve, 53 - Second Solenoid Valve, 54 - Second Electronic Expansion Valve, 60 - In - Vehicle Condenser, 70 - Gas - Liquid Separator, 80a - High - Pressure Filling Port, 80b - Low - Pressure Filling Port, 90a - Barometer, 90b - Thermometer, 90c - Barometric Thermometer, 90d - Water Thermometer, 100 - Thermal Management System, 200 - Vehicle Body, 1000 - Vehicle. Detailed Embodiments

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the scope of protection of the present application.

[0027] It should be noted that when a component is referred to as being "fixed to" another component, it can be directly on the other component or there may also be an intermediate component. When a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be an intermediate component at the same time.

[0028] Unless otherwise defined, all technical and scientific terms used in the present application have the same meaning as commonly understood by those skilled in the technical field to which the present application belongs. The terms used in the present application in the specification are only for the purpose of describing specific embodiments and are not intended to limit the present application. The term "and / or" used in the present application includes any and all combinations of one or more of the related listed items.

[0029] The following will describe in detail some embodiments of the present application with reference to the accompanying drawings. Without conflict, the following embodiments and the features in the embodiments can be combined with each other.

[0030] Please refer to Figure 1 , Figure 1Schematic diagram of the structure of vehicle 1000 provided by an embodiment of the present application. The present application provides a vehicle 1000, which includes a thermal management system 100 and a vehicle body 200 provided by the present application, and the thermal management system 100 is mounted on the vehicle body 200. The vehicle 1000 can be a pure electric vehicle, a hybrid vehicle, an extended-range electric vehicle, a fuel vehicle, etc. The thermal management system 100 can be different air-conditioning systems such as a heat pump direct cooling and direct heating air-conditioning system, a heat pump liquid cooling and liquid heating air-conditioning system, etc.

[0031] Please refer to Figure 2 and Figure 3 , Figure 2 Schematic diagram of the thermal management system 100 in the refrigeration mode provided by an embodiment of the present application; Figure 3 Schematic diagram of the thermal management system 100 in the heating mode provided by an embodiment of the present application. The thermal management system 100 includes a compressor 10, a cooling water circuit 20a, a heating water circuit 20b, a refrigeration branch 40, and a heating branch 50 provided by any embodiment of the present application. The cooling water circuit 20a, the heating water circuit 20b, the refrigeration branch 40, and the heating branch 50 are all connected to the compressor 10.

[0032] Please refer to Figure 4 and Figure 5 , Figure 4 Stereoscopic structure diagram of the compressor 10 provided by an embodiment of the present application; Figure 5 is Figure 4 Cross-sectional view of the compressor 10 shown along line IV-IV. Among them, the compressor 10 can be a scroll compressor 10. The compressor 10 includes a housing 11, a compression component 12, and a heat insulation component 13. The housing 11 houses the compression component 12. The heat insulation component 13 surrounds the outer peripheral surface of the housing 11, and the heat insulation component 13 forms a first chamber 131. The first chamber 131 surrounds the outer peripheral surface of the housing 11, and both the housing 11 and the compression component 12 are in the first chamber 131. When the refrigeration branch 40 is in communication with the compressor 10, the cooling water circuit 20a is in communication with the first chamber 131 of the compressor 10 and is used for heat exchange of the fluid input into the first chamber 131; when the heating branch 50 is in communication with the compressor 10, the heating water circuit 20b is in communication with the first chamber 131 and is used for heat exchange between the fluid output from the first chamber 131 and the refrigerant in the heating branch 50.

[0033] It should be noted that the fluid in the heating water circuit 20b does not need to be cooled. After the fluid in the heating water circuit 20b is input into the first chamber 131, it takes away the heat generated by the compressor 10. The heat in the fluid is exchanged with the refrigerant in the heating branch 50, effectively increasing the temperature of the refrigerant in the heating branch 50 and effectively improving the heating effect of the compressor 10.

[0034] The first chamber 131 is used to pass a heat exchange fluid (such as liquid water), and the fluid carries the heat generated by the compressor 10 away from the first chamber 131, thereby achieving heat dissipation of the compressor 10, or recycling the heat generated by the compressor 10 to improve the heating efficiency of the compressor 10.

[0035] In the present application, by setting a first chamber 131 outside the shell 11 of the compressor 10, the compressor 10 can be cooled by inputting heat exchange fluid into the first chamber 131, which is beneficial to improving the heat dissipation efficiency of the compressor 10. When working in a high temperature environment, the limit on the rotation speed of the compressor 10 can be reduced, which is beneficial to improving the refrigeration capacity of the thermal management system 100. The large amount of heat generated by the compressor 10 under low temperature heating conditions can be heat exchanged with the fluid in the first chamber 131, and the heat is taken away by the fluid for effective recycling, avoiding the shell 11 of the compressor 10 directly exposed to the air to cause heat loss. The fluid after heat exchange is reused, and the reliability and energy utilization rate of the thermal management system 100 are effectively improved. At the same time, the heating effect of the compressor 10 is effectively improved, and the problem of low superheat causing liquid hammer and high viscosity of lubricating oil when the compressor 10 is running in a low temperature environment can also be effectively improved. In addition, the introduction of fluid into the first chamber 131 can also reduce the noise of the compressor 10 when it is working, and reduce the impact of noise on the comfort of the NVH of the whole vehicle and environmental pollution.

[0036] For example, when the passenger compartment adopts the cooling mode, that is, when the refrigeration branch 40 is connected to the compressor 10, the cooling water path 20a is connected to the first chamber 131, and the cooling water path 20a inputs circulating fluid into the first chamber 131, so that the circulating fluid passes through the first chamber 131 and the heat generated by the operation of the compressor 10 is taken away by the circulating fluid, thereby improving the heat dissipation efficiency of the compressor 10 and the refrigeration capacity of the thermal management system 100, and can also effectively reduce the overtemperature and overpressure of the compressor 10.

[0037] When the passenger compartment adopts the heating mode, that is, when the heating branch 50 is connected to the compressor 10, the heating water circuit 20b is connected to the first chamber 131, and the heating water circuit 20b inputs uncooled circulating fluid into the first chamber 131. The circulating fluid in the first chamber 131 effectively blocks the heat generated by the compressor 10 from being directly dissipated from the compressor 10. The circulating fluid in the first chamber 131 exchanges the heat generated by the compressor 10 with the refrigerant in the heating branch 50 through the heating water circuit 20b, effectively increasing the temperature of the refrigerant in the heating branch 50, thereby improving the heating effect of the compressor 10.

[0038] Please combine Figure 4 and Figure 6 , Figure 6 for Figure 5Front view of the compressor 10 shown. In another embodiment, the heat insulation component 13 is further formed with a second chamber 132 that surrounds the first chamber 131, and the second chamber 132 is not in communication with the first chamber 131. Wherein, when the refrigeration branch 40 is in communication with the compressor 10, the cooling water circuit 20a is also in communication with the second chamber 132 and is used to cool the fluid input into the second chamber 132. When the heating branch 50 is in communication with the compressor 10, the heating water circuit 20b can be in communication only with the second chamber 132 so that the fluid output from the second chamber 132 exchanges heat with the refrigerant in the heating branch 50. Wherein, the refrigeration branch 40 and the heating branch 50 can be selectively communicated with the compressor 10, and the cooling water circuit 20a and the heating water circuit 20b can be selectively communicated with the first chamber 131 and / or the second chamber 132.

[0039] Specifically, a second chamber 132 is additionally provided outside the first chamber 131. When the refrigeration branch 40 is in communication with the compressor 10, heat-exchanging fluids are introduced into both the first chamber 131 and the second chamber 132. The heat dissipation efficiency of the compressor 10 is further enhanced by the fluids in the first chamber 131 and the second chamber 132, effectively preventing the housing 11 from directly contacting the air in the passenger compartment and further reducing the noise generated when the compressor 10 operates. When the heating branch 50 is in communication with the compressor 10, no fluid is introduced into the first chamber 131, and a cooled circulating fluid is introduced into the second chamber 132. In this way, the heat generated during the operation of the compressor 10 is conducted through the first chamber 131 to the circulating fluid in the second chamber 132, and the circulating fluid in the second chamber 132 absorbs the dissipated heat, which can effectively reduce the heat dissipation from the compressor 10 itself. While ensuring that the compressor 10 is within a working temperature range conducive to heating, the energy utilization rate is improved. By reusing the fluid output from the second chamber 132, the heat generated during the operation of the compressor 10 can be effectively recovered and utilized, preventing heat loss caused by the direct exposure of the housing 11 to the air when the compressor 10 operates and enhancing the heating effect of the compressor 10. In addition, the additional second chamber 132 further reduces the noise generated when the compressor 10 operates and improves the NVH comfort of the whole vehicle.

[0040] In one embodiment, the heat insulation component 13 includes a first enclosing plate 133 that surrounds the outer peripheral surface of the housing 11 and forms a first chamber 131 with the outer peripheral surface of the housing 11.

[0041] In another embodiment, the heat insulation component 13 further includes a second enclosing plate 134. The first enclosing plate 133 and the second enclosing plate 134 are sequentially and spacedly arranged around the outer peripheral surface of the housing 11, and the second enclosing plate 134 forms a second chamber 132 with the side of the first enclosing plate 133 facing away from the housing 11.

[0042] For example, along the arrangement direction of the shell 11 and the first enclosure 133, the sizes of the first chamber 131 and the second chamber 132 may be the same or different. For example, along the arrangement direction of the shell 11 and the first enclosure 133, the sizes of the first chamber 131 and the second chamber 132 are the same, such as the size of the first chamber 131 is 5 mm, which can effectively reduce the size of the compressor 10.

[0043] For example, the cooling water circuit 20a is provided with a radiator 21, and the radiator 21 is used to cool the fluid input into the first chamber 131 and / or the second chamber 132. When the cooling water circuit 20a inputs fluid only into the first chamber 131, the radiator 21 is used to cool the fluid input into the first chamber 131. When the cooling water circuit 20a inputs fluid into the first chamber 131 and the second chamber 132, the radiator 21 is used to cool the fluid input into the first chamber 131 and the second chamber 132.

[0044] The refrigeration branch 40 includes an evaporator 41, a first heat exchanger 42 and a first electronic expansion valve 43. The compressor 10, the first heat exchanger 42, the first electronic expansion valve 43 and the evaporator 41 are sequentially connected to form a refrigeration circuit, wherein the first heat exchanger 42 is an off-vehicle heat exchanger.

[0045] The heating branch 50 is provided with a second heat exchanger 51, and the second heat exchanger 51 is connected to both the cooling water path 20a and the heating water path 20b.

[0046] When the heating branch 50 is connected to the compressor 10, the fluid in the heating water circuit 20b is suitable for heat exchange with the refrigerant in the heating branch 50 through the second heat exchanger 51; the first solenoid valve 52 and the second solenoid valve 53 jointly control the heating branch 50 to disconnect or connect the heating branch 50 to the compressor 10. The second heat exchanger 51 can be a plate heat exchanger. When the second heat exchanger 51 is connected to the cooling water circuit 20a, the second heat exchanger 51 can also be used to cool the fluid output from the first chamber 131 and the second chamber 132 for recycling. When the second heat exchanger 51 is connected to the heating water circuit 20b, the refrigerant in the refrigeration branch 40 exchanges heat with the fluid with a higher temperature in the second heat exchanger 51, effectively raising the temperature of the refrigerant and improving the heating effect of the compressor 10. Among them, the first solenoid valve 52 is used to control the second heat exchanger 51 to be connected to the output end of the compressor 10, and the second solenoid valve 53 is used to control the input end of the compressor 10 to be connected to the second heat exchanger 51.

[0047] The heating branch 50 further includes an in-vehicle condenser 60 and a second electronic expansion valve 54 . The compressor 10 , the in-vehicle condenser 60 , the second electronic expansion valve 54 and the second heat exchanger 51 are sequentially connected to form a heating circuit.

[0048] The heating branch 50 further includes a third solenoid valve 44, and the third solenoid valve 44 is adapted to disconnect or connect the in-vehicle condenser 60 and the refrigeration branch 40. When the in-vehicle condenser 60 is connected to the refrigeration branch 40, the in-vehicle condenser 60 is adapted to cool the passenger compartment. When the in-vehicle condenser 60 is disconnected from the refrigeration branch 40, the in-vehicle condenser 60 is connected to the heating branch 50, and the in-vehicle condenser 60 is adapted to heat the passenger compartment. It should be noted that the in-vehicle condenser 60, the third solenoid valve 44, and the fifth solenoid are common parts of the heating branch 50 and the refrigeration branch 40. The third solenoid valve 44 and the second electronic expansion valve 54 can be two single valves or integrated into the same valve.

[0049] Exemplarily, the thermal management system 100 may further include a fourth solenoid valve 45, and the fourth solenoid valve 45 is used to control the connection between the refrigeration branch 40 and the first heat exchanger 42, so as to control the heat exchange between the refrigerant in the refrigeration branch 40 and the air in the passenger compartment.

[0050] In this application, the thermal management system 100 further includes a water pump 22a, a secondary water tank 22b, a high-pressure system 23, a check valve 46, a five-way valve 24, a first ball valve 25, a second ball valve 26, and a gas-liquid separator 70. The water pump 22a is used to provide water sources for the cooling water circuit 20a and the heating water circuit 20b, and the water pump 22a and the high-pressure system 23 are arranged in the common part of the cooling water circuit 20a and the heating water circuit 20b. The secondary water tank 22b can provide an additional water source for the water pump 22a. The secondary water tank 22b can also exhaust the high-pressure system 23. The check valve 46 is arranged between the input end of the first heat exchanger 42 and the second heat exchanger 51, and the check valve 46 is used to control the refrigerant flow direction of the refrigeration branch 40. The first ball valve 25 is used to control the connection or disconnection between the cooling water circuit 20a and the input side of the second chamber 132. The second ball valve 26 is used to control the connection or disconnection between the cooling water circuit 20a and the output side of the second chamber 132. The gas-liquid separator 70 is arranged between the evaporator 41 and the compressor 10.

[0051] The control method of the thermal management system 100 will be described in detail below taking the compressor 10 including the first chamber 131 and the second chamber 132 as an example.

[0052] Please refer to Figure 2 and Figure 3, In one embodiment, the output end of the compressor 10 is connected to the input end of the in-vehicle condenser 60. A high-pressure charging port 80a, a third solenoid valve 44, a second electronic expansion valve 54, a fourth solenoid valve 45, a first heat exchanger 42, a first solenoid valve 52, and a second heat exchanger 51 are successively provided at the output end of the in-vehicle condenser 60. Among them, the fourth solenoid valve 45 is connected in series with the first heat exchanger 42, the first solenoid valve 52 and the second heat exchanger 51 are connected in series, and the fourth solenoid valve 45 and the first heat exchanger 42 as a whole are connected in parallel with the first solenoid valve 52 and the second heat exchanger 51 as a whole. A second solenoid valve 53, a first electronic expansion valve 43, and an evaporator 41 are provided at the output ends of the first heat exchanger 42 and the second heat exchanger 51. Among them, the first electronic expansion valve 43 and the evaporator 41 are connected in series, and the first electronic expansion valve 43 and the evaporator 41 as a whole are connected in parallel with the second solenoid valve 53 between the output end of the first heat exchanger 42 and the input end of the gas-liquid separator 70. The output end of the gas-liquid separator 70 is connected to the input end of the compressor 10. Among them, a low-pressure charging port 80b may be provided at the input end of the gas-liquid separator 70.

[0053] Exemplarily, a barometer 90a and a thermometer 90b may be provided between the output end of the compressor 10 and the input end of the in-vehicle condenser 60. A barometric thermometer 90c is provided between the evaporator 41 and the low-pressure charging port 80b, and the barometric thermometer 90c can measure the air pressure and temperature simultaneously. It can be understood that a barometer 90a and a thermometer 90b may be respectively provided between the evaporator 41 and the low-pressure charging port 80b; a barometric thermometer 90c may be provided between the output end of the compressor 10 and the input end of the in-vehicle condenser 60.

[0054] In the occupant compartment refrigeration mode, the refrigeration branch 40 is: compressor 10 - in-vehicle condenser 60 - third solenoid valve 44 - first heat exchanger 42 - check valve 46 - first electronic expansion valve 43 - evaporator 41 - gas-liquid separator 70 - compressor 10, where the refrigerant flow direction of the refrigeration branch 40 is as Figure 2 shown by the solid arrow in. The cooling water circuit 20a is: water pump 22a - high-pressure system 23 - radiator 21 - five-way valve 24 (for example, the valve port A of the five-way valve 24 - the valve port B of the five-way valve 24) - first chamber 131 and second chamber 132 - five-way valve 24 (for example: the valve port C of the five-way valve 24 - the valve port D of the five-way valve 24) - second heat exchanger 51 - water pump 22a, where the flow direction of the circulating fluid in the cooling water circuit 20a is as Figure 2 shown by the dashed arrow in. Among them, a water thermometer 90d may be provided between the water pump 22a and the second heat exchanger 51, and the water thermometer 90d is used to monitor the water temperature of the circulating fluid after flowing through the second heat exchanger 51.

[0055] Among them, the cold and warm air doors of the thermal management system 100 default to the full cold mode. The compressor 10 performs PID control according to the deviation between the target channel temperature (i.e., the target cooling temperature set for the passenger compartment) and the actual channel temperature (the ambient temperature in the passenger compartment). The first electronic expansion valve 43 is controlled according to the superheat at the outlet of the evaporator 41. The heat source mode of the thermal management system 100 is that the residual heat is invalid, wherein, when the residual heat is invalid, the circulating fluid dissipates heat through the radiator 21. The cooling water circuit 20a is in a large circulation, that is, the cooling water circuit 20a is connected to the first chamber 131 and the second chamber 132. At this time, the water pump 22a, the first ball valve 25 and the second ball valve 26 are all in the open state, and the circulating fluid passes through the first chamber 131 and the second chamber 132, which improves the heat dissipation efficiency of the compressor 10 and the refrigeration capacity of the thermal management system 100, and can also effectively reduce the overheating and overpressure of the compressor 10. In addition, the housing 11 of the compressor 10 is prevented from directly contacting the air in the passenger compartment, and the fluid in the first chamber 131 and the second chamber 132 can effectively absorb the operating noise of the compressor 10, thereby improving the NVH comfort of the entire vehicle. Since the heat dissipation performance of the compressor 10 is improved, the heat load of the condenser 60 in the vehicle is reduced, the volume of the condenser 60 in the vehicle and the air volume of the electronic fan can be appropriately reduced, thereby reducing the high-voltage heat dissipation energy consumption of the entire vehicle.

[0056] In the passenger compartment heating mode, the heating branch 50 is: compressor 10 - vehicle condenser 60 - second electronic expansion valve 54 - first solenoid valve 52 - second heat exchanger 51 - second solenoid valve 53 - gas-liquid separator 70 - compressor 10, wherein the refrigerant flow direction of the heating branch 50 is as follows: Figure 3 The heating water circuit 20b is as follows: water pump 22a - high pressure system 23 - five-way valve 24 (for example, valve port E of five-way valve 24 - valve port B of five-way valve 24) - second chamber 132 - five-way valve 24 (for example, valve port C of five-way valve 24 - valve port D of five-way valve 24) - second heat exchanger 51 - water pump 22a, wherein the flow direction of the circulating fluid in the heating water circuit 20b is as follows: Figure 3 As shown by the dotted arrow.

[0057] Among them, the cold and warm air doors of the thermal management system 100 default to the full heating mode. The compressor 10 performs PID control according to the deviation between the target channel temperature and the actual channel temperature. The second solenoid valve 53 is controlled according to the exhaust temperature of the compressor 10. The heat source modes of the thermal management system 100 are waste heat utilization and waste heat compensation, wherein waste heat utilization is heating through the waste heat of the circulating fluid; waste heat compensation is that the temperature of the circulating fluid is too low and requires additional heating. The cooling water circuit 20a is in a small circulation, that is, the heating water circuit 20b is connected to the second chamber 132. At this time, the water pump 22a and is in an open state, the first ball valve 25 and the second ball valve 26 are in a closed state, there is no circulating fluid in the first chamber 131, and there is circulating fluid passing through the second chamber 132. The heat generated by the compressor 10 is transferred to the fluid in the second chamber 132 through the first chamber 131. The circulating fluid in the second chamber 132 can effectively recover the heat generated by the compressor 10, and at the same time, the waste heat of the motor and the system is utilized to improve the heating effect of the compressor 10. It can also effectively improve the problems of liquid hammer and high viscosity of lubricating oil caused by low superheat when the compressor 10 moves in a low temperature environment. Similarly, the fluid in the second chamber 132 can effectively absorb the noise of the compressor 10, reduce the noise of the compressor 10 when it is working, and help improve the NVH comfort of the whole vehicle.

[0058] In the description of the embodiments of the present application, it should be noted that the orientation or positional relationship of terms such as "center", "up", "down", "left", "right", "vertical", "horizontal", "inside" and "outside" are based on the orientation or positional relationship described in the accompanying drawings, and are only for the convenience of describing the present application 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 cannot be understood as a limitation on the present application.

[0059] What is disclosed above is only a preferred embodiment of the present application, and it certainly cannot be used to limit the scope of rights of the present application. Ordinary technicians in this field can understand that all or part of the processes of implementing the above embodiment and equivalent changes made according to the claims of the present application are still within the scope covered by the present application.

Claims

1. A compressor, characterized in that, It includes a housing, a compression component, and a heat insulation assembly. The housing houses the compression component, and the heat insulation assembly surrounds the outer peripheral surface of the housing. The heat insulation assembly forms a first chamber, and the first chamber surrounds the outer peripheral surface of the housing.

2. The compressor according to claim 1, wherein, The heat insulation assembly further forms a second chamber, and the second chamber surrounds the first chamber. The first chamber and the second chamber are not in communication with each other.

3. The compressor according to claim 2, characterized in that, When the compressor is in communication with the refrigeration branch, heat-exchanging fluid is introduced into both the first chamber and the second chamber; and / or, When the compressor is in communication with the heating branch, heat-exchanging fluid is introduced into the second chamber.

4. The compressor according to claim 2, characterized in that, The heat insulation assembly includes a first enclosing plate and a second enclosing plate. The first enclosing plate and the second enclosing plate are sequentially and spaced apart to surround the outer peripheral surface of the housing. The first enclosing plate and the outer peripheral surface of the housing form the first chamber, and the second enclosing plate and the side of the first enclosing plate facing away from the housing form the second chamber.

5. A thermal management system, characterized in that, It includes a cooling water circuit, a refrigeration branch, and a compressor according to any one of claims 1-4. Both the cooling water circuit and the refrigeration branch are connected to the compressor; When the refrigeration branch is in communication with the compressor, the cooling water circuit is in communication with the first chamber of the compressor and is used to cool the fluid introduced into the first chamber.

6. The thermal management system according to claim 5, wherein, It further includes a heating water circuit and a heating branch. Both the heating water circuit and the heating branch are connected to the compressor; The heat insulation assembly further forms a second chamber, and the second chamber surrounds the first chamber. The first chamber and the second chamber are not in communication with each other; When the heating branch is in communication with the compressor, the heating water circuit is in communication with the second chamber so that the fluid output from the second chamber exchanges heat with the refrigerant in the heating branch.

7. The thermal management system according to claim 5, characterized in that When the refrigeration branch is in communication with the compressor, the cooling water circuit is also in communication with the second chamber of the compressor to cool the fluid introduced into the second chamber.

8. The thermal management system according to claim 5, characterized in that, The cooling water circuit is provided with a radiator, and the radiator is used to cool the fluid entering the first chamber and / or the second chamber.

9. The thermal management system according to claim 5, characterized in that, The refrigeration branch includes an evaporator, a first heat exchanger, and a first electronic expansion valve. The compressor, the first heat exchanger, the first electronic expansion valve, and the evaporator are sequentially connected to form a refrigeration cycle.

10. The thermal management system according to claim 6, characterized in that, The heating branch is provided with a second heat exchanger, and the second heat exchanger is connected to both the cooling water circuit and the heating water circuit. When the heating branch is in communication with the compressor, the fluid in the heating water circuit is adapted to exchange heat with the refrigerant in the heating branch through the second heat exchanger.

11. The thermal management system according to claim 10, wherein, The heating branch further includes an in-vehicle condenser and a second electronic expansion valve. The compressor, the in-vehicle condenser, the second electronic expansion valve, and the second heat exchanger are sequentially connected to form a heating cycle.

12. A vehicle, characterized in that, It includes a compressor according to any one of claims 1-4 or a thermal management system according to any one of claims 5-11.

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