Thermal management system and vehicle

Abstract

The application provides a heat management system and a vehicle, relates to the technical field of vehicle-mounted equipment, and is used for solving the problems of unstable cooling effect and low cooling reliability of the electric control part of the motor. The heat management system comprises a compressor, a compression unit and a cooling unit. The compressor comprises a compression chamber and a cooling flow channel which are isolated from each other. The compression unit is connected with the compression chamber. The cooling unit is connected with the cooling flow channel. The heat management system can be used for temperature management.

Description

Technical Field

[0001] This application relates to the field of vehicle-mounted equipment technology, and in particular to thermal management systems and vehicles. Background Technology

[0002] With the improvement of living standards, cars have become the main means of transportation for families. Cars generally include a thermal management system. The compressor is a crucial component of this system, compressing the refrigerant to a high-temperature, high-pressure state to facilitate subsequent heat exchange.

[0003] A compressor typically consists of a motor and electronic control unit, as well as a compressor pump. The motor and electronic control unit requires cooling to ensure proper compressor operation. Currently, cooling of this unit is generally achieved through refrigerant, which passes through the motor and electronic control unit before entering the compressor pump for compression. However, in practical applications, the cooling of the motor and electronic control unit suffers from unstable cooling performance and low reliability. Summary of the Invention

[0004] This application provides a thermal management system and vehicle to solve the problems of unstable cooling effect and low cooling reliability in the motor and electronic control parts.

[0005] To solve the above-mentioned technical problems, this application adopts the following technical solution:

[0006] In a first aspect, embodiments of this application provide a thermal management system, including a compressor, a compression unit, and a cooling unit. The compressor includes a compression chamber and a cooling channel that are isolated from each other. The compression unit is connected to the compression chamber. The cooling unit is connected to the cooling channel.

[0007] The compressor provided in this application embodiment has a compression unit connected to a compression chamber. Refrigerant can flow through the compression unit, and the compressor compresses the refrigerant. Since the cooling unit is connected to a cooling channel, cooling water can flow through the cooling unit, dissipating heat from the compressor and carrying away the heat generated by the compressor's electric drive assembly. Because the flow rate in the cooling unit is relatively fixed, the cooling effect on the electric drive assembly can be guaranteed, creating stable cooling conditions.

[0008] In some embodiments, the compressor includes a housing assembly. A compression chamber and a cooling channel are located within the housing assembly, which has a cooling inlet and a cooling outlet connected to the cooling channel.

[0009] In some embodiments, the cooling unit includes a first heat exchanger. The two ends of the first heat exchanger are connected to a cooling inlet and a cooling outlet, respectively.

[0010] In some embodiments, the cooling unit includes a cooling pump. The two ends of the cooling pump are connected to one end of the first heat exchanger and a cooling outlet, respectively. Alternatively, the two ends of the cooling pump are connected to the other end of the first heat exchanger and a cooling inlet, respectively.

[0011] In some embodiments, the cooling unit includes a cooling pump, a first three-way valve, a second three-way valve, and a second heat exchanger. The cooling pump is connected to one end of the first heat exchanger. The first three-way valve has a first port, a second port, and a third port. The first port is connected to one end of the cooling pump, and the second port is connected to a cooling outlet. The other end of the cooling pump is connected to one end of the first heat exchanger. The second three-way valve has a fourth port, a fifth port, and a sixth port. The fourth port is connected to the other end of the first heat exchanger. The fifth port is connected to a cooling inlet. One end of the second heat exchanger is connected to the third port, and the other end is connected to the sixth port.

[0012] In some embodiments, the first heat exchanger includes a plurality of sub-heat exchangers. The plurality of sub-heat exchangers are connected in series.

[0013] In some embodiments, the thermal management system further includes multiple cooling fans. One cooling fan is located on one side of a sub-heat exchanger and is used to dissipate heat from the sub-heat exchanger.

[0014] In some embodiments, the compressor includes an electric drive assembly. Cooling channels are provided corresponding to the electric drive assembly. The cooling channels are used to circulate coolant to cool the electric drive assembly.

[0015] In some embodiments, the housing assembly includes a housing and a partition. A cavity is formed inside the housing. The partition is connected to the housing and divides the cavity into an electronically controlled chamber and a compression chamber.

[0016] In some embodiments, cooling channels are formed inside the cavity wall of the housing.

[0017] In some embodiments, the housing includes a first housing and a second housing. The first housing forms an electrically controlled chamber with a first opening. The second housing forms a compression chamber with a second opening. The second opening is disposed opposite to the first opening. A partition is located between the first housing and the second housing, connected to the first housing and the second housing, and covers the first opening and the second opening.

[0018] In some embodiments, the partition is located inside the housing and connected to the housing.

[0019] In some embodiments, cooling channels are formed inside the cavity wall of the first housing. Cooling inlets and cooling outlets are provided on the first housing.

[0020] In some embodiments, a shaft hole is provided in the partition. The compressor includes an electric drive assembly and a pump assembly. The electric drive assembly is disposed in the electronic control chamber and has an output shaft. The output shaft passes through the shaft hole. The pump assembly is disposed in the compression chamber and is connected to the output shaft.

[0021] In some embodiments, a groove is formed on the surface of the partition near the pump assembly. A protrusion is formed on the other side of the partition. A shaft hole is formed at the bottom of the groove. The compressor also includes a bearing. The bearing is disposed within the groove and sleeved around the periphery of the output shaft.

[0022] In some embodiments, the compressor further includes a shaft seal. The shaft seal is sleeved around the output shaft, located on the side of the bearing near the electric drive assembly. The inner wall of the shaft seal fits against the output shaft. The outer wall of the shaft seal fits against the inner wall of the groove.

[0023] In some embodiments, the compressor further includes a retaining ring. The retaining ring is located between the shaft seal and the bearing. The retaining ring is elastic and is interference-fitted with the inner wall of the groove, abutting against each other.

[0024] In some embodiments, the groove is stepped. The size of the groove gradually decreases along the direction near the bottom. The bottom of the groove includes a first stepped surface, a second stepped surface, and a third stepped surface. The second stepped surface is located on the side of the first stepped surface near the pump body assembly and is located on the periphery of the first stepped surface. A retaining ring is disposed on the second stepped surface, and a shaft seal is disposed on the first stepped surface. The third stepped surface is located on the side of the second stepped surface near the pump body assembly and is located on the periphery of the second stepped surface. A bearing is disposed on the third stepped surface.

[0025] In some embodiments, the partition separates the cavity into a compression chamber and an electrical control chamber. The partition also has a first flow hole and a second flow hole. The first flow hole allows airflow to balance the air pressure in the first and second cavities. The second flow hole allows compressor oil to flow through.

[0026] In some embodiments, the diameter of the first flow hole is 1mm-5mm.

[0027] In some embodiments, the diameter of the second flow hole is 1mm-5mm.

[0028] In some embodiments, the second housing is provided with a compression inlet and a compression outlet. The compression inlet and compression outlet are respectively connected to the compression chamber. The compression unit includes a condenser, an expansion valve, and an evaporator. One end of the condenser is connected to the compression outlet. One end of the expansion valve is connected to the other end of the condenser. One end of the evaporator is connected to the other end of the expansion valve, and the other end is connected to the compression inlet.

[0029] Secondly, embodiments of this application provide a vehicle including any of the thermal management systems described in the first aspect.

[0030] Since the vehicle provided in this application embodiment includes any of the thermal management systems in the first aspect, it can achieve the same technical effect and solve the same technical problem as the thermal management system, and will not be described in detail here. Attached Figure Description

[0031] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0032] Figure 1 This is a schematic diagram of the structure of a thermal management system provided in an embodiment of this application;

[0033] Figure 2 This is a schematic diagram of another thermal management system provided in an embodiment of this application;

[0034] Figure 3 A schematic diagram of the structure of a compressor provided in an embodiment of this application;

[0035] Figure 4 A cross-sectional view of a compressor provided in an embodiment of this application;

[0036] Figure 5 A cross-sectional view of another compressor provided in an embodiment of this application;

[0037] Figure 6 This is a partial structural schematic diagram of a compressor provided in an embodiment of this application;

[0038] Figure 7 for Figure 6 A sectional view;

[0039] Figure 8 This is a schematic diagram of the structure of a motor housing provided in an embodiment of this application;

[0040] Figure 9 This is a schematic diagram of the structure of an electronic control housing provided in an embodiment of this application;

[0041] Figure 10 An exploded view of a compressor section structure provided in an embodiment of this application;

[0042] Figure 11 for Figure 10 A schematic diagram showing the flow direction of the coolant corresponding to the structure shown;

[0043] Figure 12 This is a schematic diagram of another electrical control housing provided in an embodiment of this application;

[0044] Figure 13 An exploded view of another compressor component structure provided in an embodiment of this application;

[0045] Figure 14 for Figure 13 A schematic diagram showing the flow direction of the coolant corresponding to the structure shown;

[0046] Figure 15 This is one of the schematic diagrams illustrating the flow direction of coolant provided in an embodiment of this application;

[0047] Figure 16 A second schematic diagram illustrating the flow direction of coolant provided in an embodiment of this application;

[0048] Figure 17 This is a schematic diagram of the structure of a partition provided in an embodiment of this application;

[0049] Figure 18 This is a schematic diagram of another cooling system provided in an embodiment of this application;

[0050] Figure 19 This is a schematic diagram of another cooling system provided in an embodiment of this application.

[0051] Explanation of reference numerals in the attached figures:

[0052] 1000 - Cooling system; 100 - Compressor; 10 - Housing assembly; 11 - Housing; 111 - First housing; 1111 - Cooling inlet; 1112 - Cooling outlet; 1113 - Electrical control housing; 11131 - Second cooling channel; 11132 - Flow groove; 11133 - Mounting groove; 1114 - Motor housing; 11141 - First cooling channel; 1115 - Cooling channel; 1116 - First sealing ring; 1117 - Second sealing ring; 1118 - Third sealing ring; 112 - Second housing; 1121 - Compression inlet; 1122 - Compression outlet; 113 - Compression chamber; 114-Electrically controlled chamber; 12-Baffle; 121-Shaft hole; 122-Groove; 20-Electric drive assembly; 21-Drive motor; 211-Output shaft; 22-Electrically controlled components; 30-Pump body assembly; 40-Bearing; 41-Shaft seal; 42-Retaining ring; 200-Compression unit; 201-Condenser; 202-Expansion valve; 203-Evaporator; 300-Cooling unit; 301-Cooling pump; 302-First three-way valve; 303-First heat exchanger; 3031-Sub-heat exchanger; 3032-Radiation fan; 304-Second three-way valve; 305-Second heat exchanger. Detailed Implementation

[0053] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0054] In the description of this application, it should be understood that the terms "upper," "lower," "left," "right," "front," "rear," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or relative positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and for simplification, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Unless otherwise specified, the above-mentioned orientational descriptions can be flexibly set in practical applications, provided that the relative positional relationships shown in the accompanying drawings are satisfied.

[0055] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0056] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "communication" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection. They can refer to a direct connection or an indirect connection through an intermediate medium, or a connection within two components. For another example, a connection or communication between two components can be a connection or communication to achieve fluid flow; the two components can be directly connected or connected to achieve fluid flow, or they can be connected or connected through pipes to achieve fluid flow. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0057] In embodiments of this application, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, article, or apparatus that includes that element.

[0058] In the embodiments of this application, the terms "exemplary" or "for example" are used to indicate that something is an example, illustration, or description. Any embodiment or design that is described as "exemplary" or "for example" in the embodiments of this application should not be construed as being more preferred or advantageous than other embodiments or design. Specifically, the use of the terms "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.

[0059] In the description of this specification, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.

[0060] To manage the heat of various components in a car, a thermal management system is typically included. The compressor is a crucial component of this system, responsible for compressing the refrigerant and enabling it to continuously absorb and release heat during its circulation.

[0061] In related technologies, compressors typically have a refrigerant inlet and a refrigerant outlet, connected to the two ends of the refrigerant flow path, respectively. The motor and electronic control unit inside the compressor utilize the refrigerant for heat dissipation. After entering the compressor, the refrigerant flows through the back of the motor and control board, undergoes heat exchange, and then enters the compressor pump body for compression.

[0062] However, the flow rate in the refrigerant path adjusts according to vehicle conditions, and this variation range is quite wide. Therefore, when the refrigerant flow rate is low, the above-mentioned method for cooling the compressor's motor and electronic control system may result in insufficient cooling, posing a risk of overheating and ultimately causing the motor and electronic control system to fail due to high temperatures.

[0063] In addition, the low-temperature, low-pressure refrigerant entering the compressor has a lower temperature (usually around 0°C) and better cooling capacity, while the temperature of the motor and electronic control is generally higher (usually around 100°C). Using this refrigerant to cool the motor and electronic control will result in a significant loss of cooling capacity, leading to a large waste of energy utilization.

[0064] Based on this, this application provides a vehicle, the type of which is not specifically limited. For example, the vehicle can be a new energy vehicle or a gasoline-powered vehicle.

[0065] It is understandable that, in order to achieve the basic functions of a vehicle, the vehicle may include basic components such as a body and a drive mechanism, which will not be further explained here.

[0066] To achieve the vehicle's cooling function, the vehicle provided in this application embodiment may further include a thermal management system that can dissipate heat from the vehicle's components.

[0067] For example, the thermal management system can regulate the temperature of the passenger compartment. When the vehicle includes a battery pack, the thermal management system can also perform thermal management of the battery pack, enabling the battery pack to be charged or discharged within a preset temperature range.

[0068] The thermal management system provided in the embodiments of this application will now be described in detail. Figure 1 and Figure 2 As shown, Figure 1 This is a schematic diagram of the structure of a thermal management system 1000 provided in an embodiment of this application. Figure 2 This is a schematic diagram of another thermal management system 1000 provided in an embodiment of this application. The thermal management system 1000 provided in this embodiment of the application may include a compressor 100. The compressor 100 can compress the refrigerant, compressing the low-temperature, low-pressure refrigerant into a high-temperature, high-pressure refrigerant.

[0069] In some embodiments, such as Figure 1 and Figure 2 As shown, the thermal management system 1000 may further include a compression unit 200 and a cooling unit 300. The cooling unit 300 is used to circulate coolant, which is used to cool other components. The coolant can circulate within the cooling unit 300. The compression unit 200 is used to circulate refrigerant, which is used to cool other components. The refrigerant can circulate within the compression unit 200.

[0070] For example, the refrigerant in the compression unit 200 can be a refrigerant that can switch between liquid and gaseous states at different temperatures. The coolant in the cooling unit 300 can be a mixture of water and antifreeze.

[0071] The compressor 100 can be connected to the compression unit 200 and the cooling unit 300. The cooling unit 300 cools the relevant components of the compressor 100, and the compressor 100 can also compress the refrigerant in the compression unit 200.

[0072] Therefore, in order to achieve the above functions, in some embodiments, such as Figure 3 As shown, Figure 3 This is a schematic diagram of the structure of a compressor 100 provided in an embodiment of this application. The compressor 100 may include mutually isolated compression chambers 113. Figure 4 ) and cooling channel 1115 ( Figure 7 The compression unit 200 is connected to the compression chamber 113, and the cooling unit 300 is connected to the cooling channel 1115.

[0073] Therefore, the compressor 100 provided in this embodiment of the application has a compression unit 200 connected to a compression chamber 113. Refrigerant can circulate within the compression unit 200, and the compressor 100 compresses the refrigerant. Since the cooling unit 300 is connected to the cooling channel 1115, cooling water can circulate within the cooling unit 300, and the cooling water dissipates heat from the compressor 100, thus cooling the electric drive assembly 20 of the compressor 100. Figure 4 The heat generated is carried away. Since the flow rate in the cooling unit 300 is relatively fixed, the cooling effect of the electric drive assembly 20 can be guaranteed, creating stable cooling conditions.

[0074] In some embodiments, such as Figure 3 As shown, the compressor 100 may include a housing assembly 10, a compression chamber 113, and a cooling passage 1115. Figure 7 It is located inside the housing assembly 10. The housing assembly 10 is provided with a cooling inlet 1111 and a cooling outlet 1112. The cooling inlet 1111 and the cooling outlet 1112 are respectively connected to the cooling flow channel 1115.

[0075] Therefore, by providing a cooling channel 1115 inside the housing assembly 10, and by providing a cooling inlet 1111 and a cooling outlet 1112 on the housing assembly 10, the two ends of the cooling unit 300 can be connected to the cooling inlet 1111 and the cooling outlet 1112 respectively. Cooling water can flow through the interior of the housing assembly 10, thereby better transferring the heat from the housing assembly 10.

[0076] Correspondingly, such as Figure 3 As shown, the housing assembly 10 is also provided with a compression inlet 1121 and a compression outlet 1122. The compression inlet 1121 and the compression outlet 1122 are respectively connected to the compression chamber 113 ( Figure 4 (connected)

[0077] The compression unit 200 can be connected to a compression inlet 1121 and a compression outlet 1122 at its two ends, respectively. The cooling unit 300 can be connected to a cooling inlet 1111 and a cooling outlet 1112 at its two ends, respectively. In this way, the refrigerant in the compression unit 200 can enter the compression chamber 113 through the compression inlet 1121 and flow out from the compression outlet 1122.

[0078] In some embodiments, the housing assembly 10 may include a housing 11 and a partition 12. The housing 11 has an interior cavity that divides the cavity into a compression chamber 113 and an electronic control chamber 114. For example, as... Figure 4 As shown, the cavity on the right side of the partition 12 is a compression chamber 113, and the cavity on the left side of the partition 12 is also a compression chamber 113.

[0079] like Figure 4 As shown, Figure 4This is a cross-sectional view of a compressor 100 provided in an embodiment of this application. The compressor 100 may include an electric drive assembly 20 and a pump assembly 30. The electric drive assembly 20 is disposed in an electronic control chamber 114, and the pump assembly 30 is disposed in a compression chamber 113.

[0080] During the process of coolant flowing from cooling inlet 1111 to cooling outlet 1112, the coolant can dissipate heat and cool the electric drive assembly 20 in the electronic control chamber 114, carrying away the heat generated by the electric drive assembly 20. Simultaneously, after entering the compression inlet 1121, the refrigerant can flow into the pump assembly 30, where it can be compressed into high-temperature, high-pressure refrigerant before flowing out from the compression outlet 1122, facilitating subsequent heat release and absorption in circulation. Furthermore, since the partition 12 divides the cavity into the electronic control chamber 114 and the compression chamber 113, the refrigerant does not need to pass through the electric drive assembly 20, reducing cooling energy consumption.

[0081] It is understood that the specific structures of the electric drive assembly 20 and the pump assembly 30 provided in the embodiments of this application can be selected according to the actual situation, as long as the electric drive assembly 20 can control the compressor 100 and the pump assembly 30 can compress the refrigerant.

[0082] The specific structure of the pump assembly 30 can be selected according to actual conditions. For example, the pump assembly 30 may include a fixed scroll and a moving scroll. The fixed scroll can be fixed within the compression chamber 113. The moving scroll can move relative to the fixed scroll. When the moving scroll moves around the fixed scroll along a predetermined track, the volume of the space between them gradually decreases, thereby compressing the gas entering these spaces. As the moving scroll moves, the gas is gradually pushed from the larger outer space into the increasingly smaller inner space until finally the compressed gas is discharged.

[0083] To facilitate better heat exchange between the coolant and the electric drive assembly 20, in some embodiments, a cooling channel 1115 may be provided corresponding to the electric drive assembly 20. The cooling channel 1115 can be used to circulate coolant and cool the electric drive assembly 20. In this way, the coolant in the cooling channel 1115 can better remove heat from the electric drive assembly 20.

[0084] It is understood that the partition 12 can be connected to the housing in different ways to divide the cavity inside the housing 11 into an electrically controlled chamber 114 and a compression chamber 113. In some embodiments, such as Figure 4As shown, the outer casing 11 includes a first casing 111 and a second casing 112. The first casing 111 forms an electronically controlled chamber 114 with a first opening. The second casing 112 forms a compression chamber 113 with a second opening. The second opening is disposed opposite to the first opening. A partition 12 is located between the first casing 111 and the second casing 112, connected to the first casing 111 and the second casing 112, and covers the first opening and the second opening.

[0085] Thus, by placing the partition 12 between the first housing 111 and the second housing 112 to cover the first opening and the second opening, the cavity of the outer shell 11 can be divided into the aforementioned electronically controlled chamber 114 and the compression chamber 113, thereby enabling separate flow of coolant and refrigerant.

[0086] Based on the above scheme, in some embodiments, the cooling channel 1115 is formed inside the cavity wall of the first housing 111. The cooling inlet 1111 and the cooling outlet 1112 can be disposed on the first housing 111. In this way, the coolant in the cooling channel 1115 can flow through the cavity wall of the first housing 111. As can be seen from the above, the first housing 111 forms an electronically controlled chamber 114, and the electric drive assembly 20 is disposed within the electronically controlled chamber 114 of the first housing 111, facilitating the removal of heat from the electric drive assembly 20 by the coolant.

[0087] In some embodiments, such as Figure 5 As shown, Figure 5 This is a cross-sectional view of another compressor 100 provided in an embodiment of this application. The partition 12 is located inside the housing 11 and is connected to the housing 11. In this case, by placing the partition 12 inside the housing 11, the internal cavity of the housing 11 can be directly divided into an electronic control chamber 114 and a compression chamber 113, and the refrigerant and coolant can also flow separately.

[0088] In addition, such as Figure 6 As shown, Figure 6 This is a partial structural diagram of a compressor 100 provided in an embodiment of this application. The first housing 111 may include an electronic control housing 1113 and a motor housing 1114 that are connected to each other. The motor housing 1114 and the electronic control housing 1113 are internally interconnected to form the aforementioned electronic control chamber 114.

[0089] At the same time, such as Figure 7 As shown, Figure 7 for Figure 6The cross-sectional view shows that the electric drive assembly 20 may include a drive motor 21 and an electronic control component 22. The drive motor 21 may be disposed inside the motor housing 1114, and the electronic control component 22 may be disposed inside the electronic control housing 1113. A partition 12 may be located on the side of the motor housing 1114 away from the electronic control housing 1113 and connected to the motor housing 1114.

[0090] In order to isolate the compression chamber 113 from the cooling channel 1115, in some embodiments, the cooling channel 1115 can be formed inside the cavity wall of the outer casing 11. In this way, the cooling channel 1115 can be isolated from the compression chamber 113, so that the cooling water in the cooling channel 1115 will not flow into the compression chamber 113.

[0091] Accordingly, one end of the cooling channel 1115 can be connected to a cooling inlet 1111, and the other end can be connected to a cooling outlet 1112. For example, as shown... Figure 7 As shown, the electronic control housing 1113 and the motor housing 1114 can jointly form the aforementioned cooling channel 1115.

[0092] To enable the coolant to better dissipate heat from the electric drive assembly 20 within the cooling channels, in some embodiments, such as... Figure 7 As shown, the outer casing 11 ( Figure 5 Cooling channels 1115 are formed inside the cavity wall of the electrically controlled chamber 114.

[0093] In this way, the coolant can flow inside the housing 11 without flowing into the electronic control chamber 114, preventing the coolant from directly contacting the electric drive assembly 20 and thus avoiding electrical conductivity issues. The heat generated by the electric drive assembly 20 can be transferred to the coolant through the housing 11, and the heat is carried away by the flow of the coolant.

[0094] In other embodiments, the cooling inlet 1111 and cooling outlet 1112 may also be connected to the electronic control chamber 114. In this case, the housing assembly 10 may also include a heat-conducting element (not shown in the figure). The heat-conducting element may be disposed in the electronic control chamber 114, with its two ends connected to the cooling inlet 1111 and cooling outlet 1112, respectively.

[0095] In this way, heat can be transferred to the coolant through the heat-conducting component, and then carried away by the flow of the coolant. Simultaneously, the heat-conducting component acts as an insulator, preventing the coolant from directly contacting the electric drive assembly 20. For example, the heat-conducting component can be a heat pipe.

[0096] In some embodiments, the cooling channel 1115 includes a first cooling channel 11141 and a second cooling channel 11131.

[0097] based on Figure 7The scheme shown is designed to form cooling channel 1115, as follows: Figure 8 As shown, Figure 8 This is a schematic diagram of the structure of a motor housing 1114 provided in an embodiment of this application. The motor housing 1114 has a cooling outlet 1112 and can be annular. The motor housing 1114 has a first cooling channel 11141, which extends along the axial direction of the motor housing 1114 and communicates with the cooling outlet 1112.

[0098] At the same time, such as Figure 9 As shown, Figure 9 This is a schematic diagram of the structure of an electronic control housing 1113 provided in an embodiment of this application. A second cooling channel 11131 can be formed on the electronic control housing 1113, and one end of the second cooling channel 11131 is connected to the cooling inlet 1111. Figure 7 Connect.

[0099] The other end of the second cooling channel 11131 can be connected to one end of the first cooling channel 11141. Thus, the coolant flows from the cooling inlet 1111 through the second cooling channel 1113 inside the electronic control housing 1113, then through the first cooling channel 11141 inside the motor housing 1114, and finally exits through the cooling outlet 1112. During the flow through the first cooling channel 11141 and the second cooling channel 11131, heat is carried away, achieving a heat dissipation effect.

[0100] It is understandable that the specific location and structure of the cooling channel 1115 can be designed according to actual conditions. For example, such as... Figure 8 As shown, there can be multiple first cooling channels 11141, which are spaced apart circumferentially along the motor housing 1114. These multiple first cooling channels 11141 can be interconnected.

[0101] At this time, as Figure 10 As shown, Figure 10 This is an exploded view of a portion of the structure of a compressor 100 provided in an embodiment of this application. The coolant can flow along... Figure 10 As shown by the dashed arrow, after flowing out from the second cooling channel 11131 of the electronic control housing 1113, it enters the motor housing 1114, flows back and forth circumferentially along multiple first cooling channels 11141 of the motor housing 1114, and finally flows out from the motor housing 1114. Specifically, as... Figure 11 As shown, Figure 11 for Figure 10 The diagram shows the flow direction of the coolant corresponding to the structure shown. The coolant has a relatively long flow path, which allows for sufficient heat exchange and cooling.

[0102] In some embodiments, such as Figure 12 As shown, Figure 12 This is a schematic diagram of another electronic control housing 1113 provided in an embodiment of this application. Multiple flow grooves 11132 may be formed on the electronic control housing 1113.

[0103] Each of the multiple flow channels 11132 can be connected to one end of a second cooling channel 11131. Thus, as... Figure 13 As shown, Figure 13 This is an exploded view of another compressor 100 partial structure provided in an embodiment of this application, showing that the coolant can flow along... Figure 13 As shown by the dashed arrow, after flowing out from the second cooling channel 11131 of the electronic control housing 1113, it enters the motor housing 1114, flows back and forth circumferentially along multiple first cooling channels 11141 between the motor housing 1114 and the electronic control housing 1113, and finally flows out from the motor housing 1114. Specifically, as... Figure 14 As shown, Figure 14 for Figure 13 The diagram shows the flow direction of the coolant corresponding to the structure shown. The coolant has a relatively long flow path, which allows for sufficient heat exchange and cooling.

[0104] Understandably, the specific path of the coolant can be designed according to actual conditions, as long as the corresponding cooling channel 1115 is designed according to the required flow path. For example, as... Figure 15 and Figure 16 As shown, Figure 15 This is one of the schematic diagrams illustrating the flow direction of coolant provided in this application embodiment. Figure 16 This is a second schematic diagram illustrating the flow direction of coolant provided in an embodiment of this application. Figure 15 and Figure 16 The flow directions shown all allow the coolant to exchange heat effectively, resulting in good heat dissipation.

[0105] In some embodiments, such as Figure 12 As shown, the electrical control housing 1113 can be formed with a mounting groove 11133. A second cooling channel 11131 can be formed on the wall of the mounting groove 11133. The cooling inlet 1111 (… Figure 10 It can communicate with the mounting slot 11133. In this case, to avoid direct contact between the coolant and the components located within the mounting slot 11133, such as... Figure 10 As shown, housing assembly 10 ( Figure 5 It may also include a first sealing ring 1116 and a second sealing ring 1117.

[0106] The first sealing ring 1116 can be located within the mounting groove 11133, forming a clearance hole. This clearance hole controls the flow direction of the coolant, allowing it to flow along its extension direction. The second sealing ring 1117 is located on the side of the first sealing ring 1116 away from the bottom of the mounting groove 11133, covering the clearance hole. Thus, the first sealing ring 1116 and the second sealing ring 1117 can form a closed flow channel within the mounting groove 11133, allowing the coolant to flow within this channel and enter the second cooling channel 11131.

[0107] Of course, in some other embodiments, the second cooling channel 11131 can also be directly connected to the cooling inlet 1111. In this case, the coolant will not flow into the interior of the mounting groove 11133, thereby avoiding direct contact with other components. In this case, it is not necessary to provide the first sealing ring 1116 and the second sealing ring 1117.

[0108] In addition, such as Figure 10 As shown, the housing assembly 10 may further include two third sealing rings 1118. One third sealing ring 1118 may be located between the electronic control housing 1113 and the motor housing 1114, serving to seal the connection between the two. The other third sealing ring 1118 may be located between the motor housing 1114 and the partition 12, serving to seal the connection between the partition 12 and the motor housing 1114.

[0109] like Figure 4 As shown, the electric drive assembly 20 has an output shaft 211. The output shaft 211 can be connected to the pump body assembly 30 to provide a power source for the pump body. For example, the drive motor 21 may have an output shaft 211.

[0110] Therefore, in order to facilitate the connection between the output shaft 211 and the pump body assembly 30, in some embodiments, such as Figure 17 As shown, Figure 17 This is a schematic diagram of the structure of a partition 12 provided in an embodiment of this application. The partition 12 has a shaft hole 121.

[0111] Therefore, the shaft hole 121 allows the output shaft 211 of the drive motor 21 of the compressor 100 to pass through, and the output shaft 211 can be installed inside the shaft hole 121. In this way, by providing the shaft hole 121, the connection between the output shaft 211 and the pump body assembly 30 can be realized.

[0112] In some embodiments, a groove 122 is formed on one side of the surface of the partition 12. For example... Figure 13 As shown, the baffle 12 is close to the pump body assembly 30 ( Figure 5 A groove 122 is formed on one side of the partition plate 12. A protrusion is formed on the other side of the groove 122. A shaft hole 121 is provided at the bottom of the groove 122. Figure 17 ).

[0113] At the same time, refer to Figure 4 The compressor 100 may also include a bearing 40. The bearing 40 is disposed in a recess 122 ( Figure 13 The bearing 40 is fitted inside the partition plate 12 and around the output shaft 211. Therefore, since the partition plate 12 has a groove 122, the groove 122 provides an installation position for the bearing 40, which can be easily installed within the groove 122. At the same time, by installing the bearing 40, the friction of the output shaft 211 can be reduced, allowing the output shaft 211 to rotate smoothly and efficiently.

[0114] To ensure a better sealing effect of the partition 12, in some embodiments, such as... Figure 4 As shown, the compressor 100 may further include a shaft seal 41. The shaft seal 41 is sleeved around the output shaft 211, located on the side of the bearing 40 near the electric drive assembly 20. The inner wall of the shaft seal 41 fits against the output shaft 211. The outer wall of the shaft seal 41 and the groove 122 ( Figure 13 The inner wall of the shaft seal 41 is fitted to the shaft 211. Therefore, by setting the shaft seal 41 so that the inner wall of the shaft seal 41 fits against the output shaft 211, the position of the shaft hole 121 can be well sealed, reducing the probability of refrigerant and coolant flowing into each other through the shaft hole 121.

[0115] In some embodiments, in order to ensure that the shaft seal 41 can be better fixed within the groove 122, such as... Figure 4 As shown, the compressor 100 may further include a retaining ring 42. The retaining ring 42 is located between the shaft seal 41 and the bearing 40. The retaining ring 42 is elastic and has an interference fit with the inner wall of the groove 122, abutting against each other. Due to the interference fit between the retaining ring 42 and the inner wall of the groove 122, the retaining ring 42 can be relatively stably fixed in the groove 122. Since the retaining ring 42 is located between the shaft seal 41 and the bearing 40, it can block the shaft seal 41 and prevent the shaft seal 41 from falling out of the groove 122.

[0116] In some embodiments, the groove 122 is stepped. The size of the groove 122 gradually decreases along the direction near the bottom of the groove 122. In this way, since the groove 122 is stepped, the bearing 40, the shaft seal 41, and the retaining ring 42 can be disposed at different positions in the groove 122, which allows for better arrangement of the bearing 40, the shaft seal 41, and the retaining ring 42.

[0117] For example, the bottom of the groove 122 includes a first stepped surface, a second stepped surface, and a third stepped surface. The second stepped surface is located on the side of the first stepped surface near the pump body assembly 30 and is located on the periphery of the first stepped surface. The retaining ring 42 is disposed on the second stepped surface, and the shaft seal 41 is disposed on the first stepped surface. The third stepped surface is located on the side of the second stepped surface near the pump body assembly 30 and is located on the periphery of the second stepped surface. The bearing 40 is disposed on the third stepped surface. Thus, through the aforementioned first stepped surface, second stepped surface, and third stepped surface, the shaft seal 41, retaining ring 42, and bearing 40 can be disposed at different positions in the groove 122, and the three can be better disposed within the groove 122.

[0118] In some embodiments, the partition 12 is further provided with a first flow hole and a second flow hole. The first flow hole is used to allow airflow to balance the air pressure in the electronic control chamber 114 and the compression chamber 113. The second flow hole is used to allow oil from the compressor 100 to flow. Thus, by providing the first flow hole, the airflow in the electronic control chamber 114 and the compression chamber 113 can be kept in balance. And by using the second flow hole, oil recovery can be achieved.

[0119] For example, there can be multiple first flow holes and multiple second flow holes. These multiple first flow holes and multiple second flow holes can be spaced apart circumferentially along the partition 12. Furthermore, in practical applications, the second flow holes can be located at the lower part of the partition 12, and the first flow holes can be located at the higher part of the partition 12. This allows the oil to flow from a lower position through the second flow holes, making flow more convenient.

[0120] In some embodiments, the diameter of the first flow-through hole is 1mm-5mm. When the diameter of the first flow-through hole is within the above range, the diameter of the first flow-through hole is appropriate and can ensure the flow of air.

[0121] For example, the diameter of the first flow hole can be 1mm, 3mm, or 5mm, and the specific choice can be made according to the actual situation. Of course, the diameter of the first flow hole can also be other values. For example, the diameter of the first flow hole can be greater than 5mm, or the diameter of the first flow hole can be less than 1mm.

[0122] In some embodiments, the diameter of the second flow orifice is 1mm-5mm. Similarly, when the diameter of the first flow orifice is within the above range, the diameter of the second flow orifice is appropriate to ensure the flow of oil.

[0123] For example, the diameter of the second flow orifice can be 1mm, 3mm, or 5mm, and the specific choice can be made according to the actual situation. Of course, the diameter of the second flow orifice can also be other values. For example, the diameter of the second flow orifice can be greater than 5mm, or the diameter of the second flow orifice can be less than 1mm.

[0124] As mentioned above, the thermal management system 1000 provided in this application embodiment includes a cooling unit 300. In some embodiments, such as... Figure 1 As shown, the cooling unit 300 may include a first heat exchanger 303. The two ends of the first heat exchanger 303 are connected to a cooling inlet 1111 and a cooling outlet 1112, respectively. Thus, when the coolant flows through the cooling channel 1115, it carries away the heat generated by the compressor 100, and the heated coolant can flow through the first heat exchanger 303. At this time, the first heat exchanger 303 can exchange heat with the external airflow, carrying away the heat carried by the coolant, thereby achieving cooling and temperature reduction of the coolant.

[0125] In some embodiments, such as Figure 18 As shown, Figure 18 This is a schematic diagram of another cooling system 1000 provided in an embodiment of this application. The cooling unit 300 may also include a cooling pump 301.

[0126] The two ends of the cooling pump 301 can be connected to one end of the first heat exchanger 303 and the cooling outlet 1112, respectively. Alternatively, the two ends of the cooling pump 301 can be connected to the other end of the first heat exchanger 303 and the cooling inlet 1111, respectively. In this way, the cooling pump 301 can provide power so that the coolant can circulate smoothly within the cooling channel 1115 and the first heat exchanger 303.

[0127] Continue to refer to Figure 1 In some embodiments, the cooling unit 300 may further include a cooling pump 301, a first three-way valve 302, a second three-way valve 304, and a second heat exchanger 305. The first three-way valve 302 has a first port, a second port, and a third port. The first port is connected to one end of the cooling pump 301, and the second port is connected to the cooling outlet 1112. One end of the first heat exchanger 303 is connected to the other end of the cooling pump 301. The second three-way valve 304 has a fourth port, a fifth port, and a sixth port.

[0128] The fourth port is connected to the other end of the first heat exchanger 303. The fifth port is connected to the cooling inlet 1111.

[0129] One end of the second heat exchanger 305 is connected to the third port, and the other end is connected to the sixth port.

[0130] Therefore, as Figure 1As shown, when the second and third ports of the first three-way valve 302 are both connected to the first port, and the fourth and sixth ports of the second three-way valve 304 are both connected to the fifth port, the coolant in the second heat exchanger 305 and the coolant in the compressor 100 can both flow through the first three-way valve 302 to the first heat exchanger 303. The cooling water cooled after the first heat exchanger 303 can flow through the second three-way valve 304 to the second heat exchanger 305 and the compressor 100 respectively. The cooling water at the second heat exchanger 305 can be used to cool other heat-generating components of the vehicle.

[0131] It is understandable that the connection positions of the cooling inlet 1111 and the cooling outlet 1112 in the cooling unit 300 may differ. For example, as Figure 2 As shown, in some embodiments, the cooling inlet 1111 can be connected to the second port of the first three-way valve 302, and the cooling outlet 1112 can be connected to the fifth port of the second three-way valve 304.

[0132] In some embodiments, the first three-way valve 302 and the second three-way valve 304 can be proportional three-way valves. In this way, by adjusting the ratio of the connection size of each port of the first three-way valve 302 and the second three-way valve 304, the flow rate can be controlled.

[0133] In some embodiments, such as Figure 2 As shown, the first heat exchanger 303 includes multiple sub-heat exchangers 3031. These multiple sub-heat exchangers 3031 are connected in series. Therefore, the heat exchange efficiency of the first heat exchanger 303 can be improved through the multiple sub-heat exchangers 3031.

[0134] Or, such as Figure 19 As shown, Figure 19 This is a schematic diagram of another cooling system provided in the embodiments of this application. In some embodiments, the first heat exchanger 303 may also include only one first sub-heat exchanger 3031, which can be selected according to the actual situation.

[0135] In some embodiments, such as Figure 2 As shown, the thermal management system 1000 may also include multiple cooling fans 3032. One cooling fan 3032 is located on one side of a sub-heat exchanger 3031 and is used to dissipate heat from the sub-heat exchanger 3031. In this way, the airflow velocity near the sub-heat exchanger 3031 can be increased by the cooling fan 3032, thereby improving the heat exchange effect of the sub-heat exchanger 3031.

[0136] In addition, such as Figure 19As shown, a cooling fan 3032 can also be provided on one side of the second heat exchanger 305. In this way, the airflow velocity near the second heat exchanger 305 can be increased by the cooling fan 3032, thereby improving the heat exchange effect of the second heat exchanger 305.

[0137] As mentioned above, the thermal management system 1000 provided in this application embodiment includes a compression unit 200. In some embodiments, such as... Figure 1 As shown, the compression unit 200 may include a condenser 201, an expansion valve 202, and an evaporator 203 connected in sequence. One end of the condenser 201 is connected to the compression outlet 1122, one end of the expansion valve 202 is connected to the other end of the condenser 201, and one end of the evaporator 203 is connected to the other end of the expansion valve 202, while the other end is connected to the compression inlet 1121. In this way, the refrigerant in the compression unit 200 can enter the compression chamber 113 and be compressed by the pump assembly 30 within the compression chamber 113, becoming a high-temperature, high-pressure refrigerant.

[0138] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A thermal management system, characterized in that, include: The compressor (100) includes mutually isolated compression chambers (113) and cooling channels (1115); A compression unit (200) connected to the compression chamber (113); and, Cooling unit (300) is connected to the cooling channel.

2. The thermal management system according to claim 1, characterized in that, The compressor includes a housing assembly (10), the compression chamber (113) and the cooling channel (1115) are located inside the housing assembly (10), the housing assembly (10) is provided with a cooling inlet (1111) and a cooling outlet (1112), the cooling inlet (1111) and the cooling outlet (1112) are respectively connected to the cooling channel (1115).

3. The thermal management system according to claim 2, characterized in that, The cooling unit (300) includes a first heat exchanger (303), the two ends of which are connected to the cooling inlet (1111) and the cooling outlet (1112), respectively.

4. The thermal management system according to claim 3, characterized in that, The cooling unit also includes: A cooling pump, the two ends of which are respectively connected to one end of the first heat exchanger (303) and the cooling outlet (1112), or the two ends of which are respectively connected to the other end of the first heat exchanger (303) and the cooling inlet (1111).

5. The thermal management system according to claim 3, characterized in that, The cooling unit also includes: Cooling pump; The first three-way valve (302) has a first port, a second port and a third port; the first port is connected to one end of the cooling pump (301); the second port is connected to the cooling outlet (1112); and the other end of the cooling pump is connected to one end of the first heat exchanger (303). The second three-way valve (304) has a fourth port, a fifth port, and a sixth port; the fourth port is connected to the other end of the first heat exchanger (303); the fifth port is connected to the cooling inlet (1111); and, The second heat exchanger (305) has one end connected to the third port and the other end connected to the sixth port.

6. The thermal management system according to claim 5, characterized in that, The first heat exchanger (303) includes: Multiple sub-heat exchangers (3031) are connected in series with each other.

7. The thermal management system according to claim 6, characterized in that, The thermal management system (1000) also includes: Multiple cooling fans (3032), one of the cooling fans (3032) is located on one side of one of the sub-heat exchangers (3031) for cooling the sub-heat exchanger (3031).

8. The thermal management system according to claim 1, characterized in that, The compressor includes an electric drive assembly (20), and the cooling channel is correspondingly provided with the electric drive assembly (20). The cooling channel is used to circulate coolant to cool the electric drive assembly (20).

9. The thermal management system according to claim 2, characterized in that, The housing assembly (10) includes: The outer shell (11) has a cavity formed inside it; A partition (12) is connected to the outer shell (11) to divide the cavity into an electrically controlled chamber (114) and a compression chamber (113).

10. The thermal management system according to claim 9, characterized in that, The cooling channels (1115) are formed inside the cavity wall of the outer shell (11).

11. The thermal management system according to claim 9, characterized in that, The outer casing (11) includes: A first housing (111) forms the electrically controlled chamber having a first opening; and, A second housing (112) is formed to form the compression chamber (113) having a second opening; the second opening is disposed opposite to the first opening; The partition (12) is located between the first housing (111) and the second housing (112), is connected to the first housing (111) and the second housing (112), and covers the first opening and the second opening.

12. The thermal management system according to claim 11, characterized in that, The cooling channel (1115) is formed inside the cavity wall of the first housing (111), and the cooling inlet (1111) and the cooling outlet (1112) are disposed on the first housing (111).

13. The thermal management system according to claim 9, characterized in that, The partition (12) is located inside the outer shell (11) and is connected to the outer shell (11).

14. The thermal management system according to claim 9, characterized in that, The partition (12) has a shaft hole (121); the compressor (100) also includes: An electric drive assembly (20), disposed within the electronically controlled chamber (114), has an output shaft (211); the output shaft (211) passes through the shaft hole (121); and, The pump assembly (30) is located in the compression chamber (113) and connected to the output shaft (211).

15. The thermal management system according to claim 14, characterized in that, The partition plate (12) has a groove (122) formed on the surface of the side near the pump body assembly (30); the groove (122) has a protrusion on the other side of the partition plate (12); the shaft hole (121) is provided at the bottom of the groove (122); The compressor (100) also includes: The bearing (40) is disposed in the groove (122) and sleeved around the output shaft (211).

16. The thermal management system according to claim 15, characterized in that, The compressor (100) also includes: A shaft seal (41) is sleeved around the output shaft (211) and located on the side of the bearing (40) near the electric drive assembly (20). The inner wall of the shaft seal (41) fits against the output shaft (211), and the outer wall of the shaft seal (41) fits against the inner wall of the groove (122).

17. The thermal management system according to claim 16, characterized in that, The compressor (100) also includes: A retaining ring (42) is located between the shaft seal (41) and the bearing (40). The retaining ring (42) is elastic and is interference-fitted with the inner wall of the groove (122) to abut against each other.

18. The thermal management system according to claim 17, characterized in that, The groove (122) is stepped, and the size of the groove (122) gradually decreases along the direction close to the bottom of the groove (122); The groove (122) has a first stepped surface, a second stepped surface and a third stepped surface at its bottom. The second stepped surface is located on the side of the first stepped surface near the pump body assembly (30) and is located on the periphery of the first stepped surface. The retaining ring (42) is disposed on the second stepped surface and the shaft seal (41) is disposed on the first stepped surface. The third stepped surface is located on the side of the second stepped surface near the pump body assembly (30) and is located on the periphery of the second stepped surface; the bearing (40) is disposed on the third stepped surface.

19. The thermal management system according to claim 11, characterized in that, The second housing (112) is provided with a compression inlet (1121) and a compression outlet (1122), the compression inlet (1121) and the compression outlet (1122) are respectively connected to the compression chamber (113), and the compression unit (200) includes: A condenser (201), one end of which is connected to the compression outlet (1122); An expansion valve (202) is connected at one end to the other end of the condenser (201); and, Evaporator (203), one end of which is connected to the other end of the expansion valve (202), and the other end is connected to the compression inlet (1121).

20. A vehicle, characterized in that, The thermal management system (1000) includes any one of claims 1-19.

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