Heat exchange assembly, battery pack and electric device

Abstract

The utility model discloses a heat exchange subassembly, battery pack and electric equipment, the heat exchange subassembly includes: heat exchange spare and connecting piece, the heat exchange spare is formed with heat exchange runner inside, the connecting piece is equipped with first runner and second runner, first runner with second runner is intercommunication with heat exchange runner respectively, and the connecting piece is suitable for being connected with external connector. Therefore, make heat exchange spare and external connector can communicate through single connecting piece, can simplify the structure of heat exchange subassembly, has reduced the processing difficulty of heat exchange subassembly, and is favorable to simplifying assembly step, improves assembly efficiency, solved the dismounting installation problem in the production after -sale process.

Description

Technical Field

[0001] This utility model relates to the field of battery technology, and in particular to a heat exchange component, a battery pack, and an electrical device. Background Technology

[0002] In related technologies, battery packs are typically cooled by a cold plate housed within a tray. The tray has an external connector with inlet and outlet channels, which are connected to the cold plate via a connecting structure. External piping supplies refrigerant to the cold plate through this connector. However, due to inherent manufacturing errors in the connecting structure itself, and positioning errors between the two connecting structures, the manufacturing requirements for the connecting structure are high, making it difficult to manufacture and leaving room for improvement. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a heat exchange component that simplifies its structure, reduces its processing difficulty, and facilitates simplified assembly steps and improved assembly efficiency.

[0004] A heat exchange component according to an embodiment of the present invention includes: a heat exchange element having a heat exchange channel formed therein; a connector having a first channel and a second channel, the first channel and the second channel being respectively connected to the heat exchange channel, and the connector being adapted to be connected to an external connector.

[0005] According to the embodiment of the present utility model, the heat exchange component is provided with a first flow channel and a second flow channel by setting a connector, so that the heat exchange component and the external connector can be connected through a single connector. This simplifies the structure of the heat exchange component, reduces the processing difficulty of the heat exchange component, and facilitates the simplification of assembly steps, improves assembly efficiency, and solves the disassembly and installation problems in the production and after-sales process.

[0006] According to some embodiments of the present invention, in a heat exchange assembly, the second flow channel is arranged around the first flow channel; and / or, the first flow channel and the second flow channel are arranged coaxially.

[0007] According to some embodiments of the present invention, the heat exchange assembly includes a first tube portion and a second tube portion, the first tube portion defining the first flow channel, the second tube portion being sleeved on the outside of the first tube portion, and the second tube portion and the first tube portion jointly defining the second flow channel.

[0008] According to some embodiments of the present invention, in the heat exchange assembly, the second tube is connected to the first tube by a support rib; or, at least one axial end of the first tube protrudes from the axial end of the second tube.

[0009] According to some embodiments of the present invention, the diameter of the first flow channel is greater than or equal to 6 mm; and / or, the minimum wall thickness of the first tube is greater than or equal to 1.5 mm; and / or, the minimum wall thickness of the second tube is greater than or equal to 1.5 mm.

[0010] According to some embodiments of the present invention, in the heat exchange assembly, the first flow channel is an inlet flow channel, and the flow area of ​​the first flow channel is smaller than the flow area of ​​the second flow channel; and / or, the connector is plugged into the heat exchange component and the external connector.

[0011] According to some embodiments of the present invention, the heat exchange component includes a heat exchange body and a connector. The heat exchange body defines the heat exchange channel. The connector is connected to the heat exchange body and has an installation port. The connector is inserted into the installation port to connect with the connector. The connector is used to connect the heat exchange channel to the first channel and the second channel respectively.

[0012] According to some embodiments of the present invention, in a heat exchange assembly, one of the heat exchange element and the external connector is provided with a connection hole; the connector includes a first tube portion and a second tube portion, the connection hole includes a first hole segment and a second hole segment arranged in sequence, the second hole segment is located at the open end of the connection hole, the diameter of the second hole segment is larger than the diameter of the first hole segment, the end of the first tube portion extends into the first hole segment and is sealed with the inner peripheral wall of the first hole segment, and the second tube portion extends into the second hole segment and is sealed with the inner peripheral wall of the second hole segment.

[0013] According to some embodiments of the present invention, in the heat exchange assembly, the end of the first tube and the end of the first orifice are spaced apart to define a slow-flow cavity.

[0014] According to some embodiments of the present invention, in the heat exchange assembly, the outer peripheral wall of the first tube and / or the second tube is provided with a receiving groove, the receiving groove being used to receive a sealing ring, the sealing ring being used to seal against the inner peripheral wall of the connecting hole; or, the outer peripheral wall of the first tube and / or the second tube is provided with a receiving groove, the receiving groove being used to receive a sealing ring, the sealing ring being used to seal against the inner peripheral wall of the connecting hole, and the depth of the receiving groove being greater than or equal to 2 mm.

[0015] According to some embodiments of the present invention, the heat exchange assembly of the external connector is provided with a third flow channel and a fourth flow channel, the third flow channel being used to communicate with the first flow channel and the fourth flow channel being used to communicate with the second flow channel; the external connector is provided with a through-hole communication channel, the communication channel being provided with a waterproof and breathable valve, and the communication channel exchanging heat with at least one of the third flow channel and the fourth flow channel.

[0016] According to some embodiments of the present invention, the heat exchange component is used for heat exchange with an electrical module, the electrical module including at least one of a power distribution module, a control module, and a power conversion module.

[0017] This utility model also proposes a battery pack.

[0018] The battery pack according to an embodiment of the present invention includes the heat exchange component described in any of the above embodiments.

[0019] According to the embodiments of the present invention, the heat exchange component of the battery pack has a simple structure, low processing difficulty, and high assembly efficiency, which can reduce the production cost of the battery pack.

[0020] The battery pack according to some embodiments of the present invention further includes: a battery cell and an electrical module, the battery pack having a first receiving cavity and a second receiving cavity, the battery cell being received in the first receiving cavity, the electrical module being received in the second receiving cavity, and a heat exchanger being used for heat exchange with the electrical module, the heat exchanger being detachably installed in the second receiving cavity.

[0021] This utility model also proposes an electrical device.

[0022] The electrical equipment according to the embodiments of the present invention includes the battery pack described in any of the above embodiments.

[0023] According to the embodiments of the present invention, the heat exchange component of the electrical equipment has a simple structure, low processing difficulty, and high assembly efficiency, which can reduce the production cost of the battery pack and improve the product competitiveness of the electrical equipment.

[0024] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0025] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a schematic diagram of a heat exchange assembly according to an embodiment of the present utility model; Figure 2 This is a partial cross-sectional view of a heat exchange component according to an embodiment of the present utility model; Figure 3 yes Figure 2 A magnified view of a section at point A in the middle; Figure 4 This is a schematic diagram of the connector according to an embodiment of the present utility model; Figure 5This is a schematic diagram of a battery pack according to an embodiment of the present utility model; Figure 6 This is a top view of the integrated controller according to an embodiment of the present utility model; Figure 7 This is a top view of a portion of the structure of the integrated controller according to an embodiment of the present utility model; Figure 8 yes Figure 7 A partial schematic diagram at point B in the middle; Figure 9 This is an isometric view of the integrated controller according to an embodiment of the present utility model; Figure 10 This is a schematic diagram of a power distribution module according to an embodiment of the present utility model; Figure 11 This is a schematic diagram of the control module according to an embodiment of the present utility model; Figure 12 yes Figure 9 A magnified view of a section at point C.

[0026] Figure label: Battery pack 1000; Heat exchange component 100; Heat exchanger 1; Heat exchanger body 11; Adapter 12; Main body 121; Connecting part 122; Connector 2; First tube section 21; Second tube section 22; Support rib 23; First flow channel 24; Second flow channel 25; Receiving groove 26; External connector 3; Third flow channel 31; Fourth flow channel 32; Connecting hole 33; First hole section 331; Second hole section 332; Slow flow cavity 34; Connecting channel 35; Sealing ring 4; Bottom cover 200; First receiving cavity 201; Second receiving cavity 202; Battery cell 300; Integrated controller 400; mounting bracket 410; base 411; Electrical module 420; power distribution module 421; first battery connection terminal 4211; second battery connection terminal 4212; first DC charging connection terminal 4213; second DC charging connection terminal 4214; first control module connection terminal 4215; second control module connection terminal 4216; housing 4217; first opening 42171; Control module 422; capacitor assembly 4221; first power conversion connection part 4222; second power conversion connection part 4223; first fuse element 4224; first electrical connector 4225; second electrical connector 4226; first power distribution connection terminal 4227; second power distribution connection terminal 4228; Power conversion module 423; first control module connection part 4231; second control module connection part 4232; Connector assembly 43; DC charging connector 431; low-voltage connector 432. Detailed Implementation

[0027] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0028] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, 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, and therefore should not be construed as a limitation of this utility model. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more. In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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 mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0029] Hereinafter, with reference to the accompanying drawings, a heat exchange assembly 100 according to an embodiment of the present invention will be described.

[0030] like Figures 1-12 As shown, the heat exchange assembly 100 according to an embodiment of the present utility model includes: a heat exchange component 1, a connector 2, and an external connector 3. The connector 2 is provided with a first flow channel 24 and a second flow channel 25. The first flow channel 24 and the second flow channel 25 are respectively connected to the heat exchange flow channel. The connector 2 is adapted to be connected to the external connector 3.

[0031] For example, refer to Figures 1-5As shown, the battery pack 1000 is provided with a heat exchange assembly 100, which includes a heat exchange element 1, a connector 2, and an external connector 3. The heat exchange element 1 is located inside the battery pack 1000 and has a heat exchange channel formed therein. The heat exchange channel is used to flow a refrigerant, such as Freon, carbon dioxide, water, or oil. The heat exchange element 1 is used to cool or heat relevant components inside the battery pack 1000 (such as the electrical module 420 described below).

[0032] The connector 2 has a first flow channel 24 and a second flow channel 25, which are not connected to each other. One end of the connector 2 is fixed to the heat exchanger 1 so that the first flow channel 24 and the second flow channel 25 are respectively connected to the two ends of the heat exchange flow channel. The external connector 3 is connected to the external pipeline and has a third flow channel 31 and a fourth flow channel 32. The other end of the connector 2 is fixed to the external connector 3. The third flow channel 31 is used to connect with the first flow channel 24, and the fourth flow channel 32 is used to connect with the second flow channel 25. The refrigerant in the external pipeline can flow into the heat exchange flow channel from one of the third flow channel 31 and the fourth flow channel 32, and the refrigerant in the heat exchange flow channel can flow out into the external pipeline from the other of the third flow channel 31 and the fourth flow channel 32.

[0033] For example, the refrigerant in the external pipeline can be configured to flow through the third flow channel 31 and the first flow channel 24 into the heat exchange flow channel. The refrigerant flows along the heat exchange flow channel to exchange heat with the relevant components. After heat exchange, the refrigerant flows through the second flow channel 25 and the fourth flow channel 32 back into the external pipeline.

[0034] It is understandable that by setting the heat exchanger 1 and the external connector 3 to be connected through a single connector 2, compared to the case where the heat exchanger 1 and the external connector 3 are connected through two connection structures, the structure of the heat exchange assembly 100 is simplified. This makes it easier to control the processing error, reduces the processing difficulty of the heat exchange assembly 100, simplifies the assembly steps, improves assembly efficiency, solves the problem of after-sales disassembly and installation, and also reduces the amount of materials used, saving material costs.

[0035] According to the embodiment of the present utility model, the heat exchange component 100 is provided with a first flow channel 24 and a second flow channel 25 by setting the connector 2, so that the heat exchange component 1 and the external connector 3 can be connected through a single connector 2. This simplifies the structure of the heat exchange component 100, reduces the processing difficulty of the heat exchange component 100, and facilitates the simplification of assembly steps, improves assembly efficiency, and solves the disassembly and installation problems in the production and after-sales process.

[0036] In some embodiments of this utility model, such as Figure 4 As shown, the second flow channel 25 can be arranged around the first flow channel 24. This makes full use of space and reduces the difficulty of positioning and forming the first flow channel 24 and the second flow channel 25, which in turn reduces the processing difficulty of the connector 2.

[0037] In some embodiments of this utility model, such as Figure 4 As shown, the first flow channel 24 and the second flow channel 25 can be coaxially arranged. This makes the connector 2 more uniform overall, which is beneficial to improving the structural stability of the connector 2, and can also reduce the processing difficulty of the heat exchange component 1 and the external connector 3, thereby improving the practicality of the heat exchange assembly 100.

[0038] In some embodiments of this utility model, such as Figure 4 As shown, the connector 2 includes a first tube portion 21 and a second tube portion 22. The first tube portion 21 defines a first flow channel 24, and the second tube portion 22 is sleeved on the outside of the first tube portion 21 and fixedly connected to the first tube portion 21. The second tube portion 22 and the first tube portion 21 together define a second flow channel 25. This simplifies the structure of the connector 2 and improves its practicality.

[0039] In some embodiments of this utility model, such as Figure 4 As shown, the second tube section 22 can be connected to the first tube section 21 via a support rib 23. This reduces the molding difficulty of the connector 2, improves the structural stability of the first flow channel 24 and the second flow channel 25, and enhances the reliability of the connector 2.

[0040] In some embodiments of this utility model, such as Figure 4 As shown, multiple support ribs 23 can be provided, and multiple support ribs 23 are arranged around the first tube 21 at intervals. Multiple support ribs 23 are used to divide the second flow channel 25 into multiple sub-flow channels.

[0041] The above configuration can improve the connection stability between the first pipe section 21 and the second pipe section 22, improve the overall structural strength of the connector 2, and make the refrigerant distribution in the second flow channel 25 more uniform, thereby improving the flow stability of the refrigerant.

[0042] In some embodiments of this utility model, such as Figure 4 As shown, at least one axial end of the first tube 21 protrudes from the axial end of the second tube 22.

[0043] For example, the first tube portion 21 may be configured such that one end of the first tube portion 21 protrudes axially toward the heat exchanger 1 and extends beyond the axial end of the second tube portion 22; or, the first tube portion 21 may be configured such that one end of the first tube portion 21 protrudes axially toward the external connector 3 and extends beyond the axial end of the second tube portion 22; or, both axial ends of the first tube portion 21 may protrude beyond the axial ends of the second tube portion 22.

[0044] With the above arrangement, the ends of the first flow channel 24 and the second flow channel 25 can be staggered along the axial direction of the connector 2, so that the first flow channel 24 and the second flow channel 25 are less likely to be connected, thereby improving the sealing performance of the first flow channel 24 and the second flow channel 25 and enhancing the reliability of the connector 2.

[0045] In some embodiments of this utility model, the diameter of the first flow channel 24 can be greater than or equal to 6 mm, such as 6 mm, 7 mm, 8 mm, 9 mm, 10 mm, etc. It should be noted that when the refrigerant is a gas flow, the diameter of the first flow channel 24 should be a smaller value; while when the refrigerant is a liquid, the diameter of the first flow channel 24 should be a larger value.

[0046] The above settings ensure sufficient refrigerant flow, guaranteeing the heat exchange efficiency of the heat exchange component 100 and improving its practicality.

[0047] In some embodiments of this utility model, the minimum wall thickness of the first tube 21 can be set to be greater than or equal to 1.5 mm, such as 1.5 mm, 2 mm, 2.5 mm, 3 mm, etc. This ensures the structural strength of the first tube 21, improves the overall structural stability of the connector 2, and enhances the reliability of the heat exchange assembly 100.

[0048] In some embodiments of this utility model, the minimum wall thickness of the second tube 22 can be set to be greater than or equal to 1.5 mm, such as 1.5 mm, 2 mm, 2.5 mm, 3 mm, etc. This ensures the structural strength of the second tube 22, improves the overall structural stability of the connector 2, and enhances the reliability of the heat exchange assembly 100.

[0049] In some embodiments of this utility model, the first flow channel 24 is an inlet flow channel, through which the refrigerant in the external pipeline can flow into the heat exchange flow channel. The flow area of ​​the first flow channel 24 is smaller than that of the second flow channel 25. Of course, the second flow channel 25 can also be set as an inlet flow channel, which will not be elaborated here.

[0050] By setting the above, the pressure in the second flow channel 25 can be reduced, so that the refrigerant in the heat exchange channel can flow out of the heat exchange channel more quickly, thereby improving the circulation efficiency of the refrigerant and improving the heat exchange efficiency of the heat exchange component 100.

[0051] In some embodiments of this utility model, such as Figures 1-3 As shown, the connector 2 can be plugged into the heat exchanger 1. Alternatively, the connector 2 can be plugged into the external connector 3; this invention does not limit this arrangement. This reduces the installation difficulty of the connector 2, improves its installation stability, and enhances the reliability of the heat exchange assembly 100.

[0052] In some embodiments of this utility model, such as Figure 3 As shown, the heat exchanger 1 includes a heat exchange body 11 and a connector 12. The heat exchange body 11 defines a heat exchange flow channel. The connector 12 is connected to the heat exchange body 11 and has an installation port. The connector 2 is inserted into the installation port to connect with the connector 12. The connector 12 is used to connect the heat exchange flow channel to the first flow channel 24 and the second flow channel 25 respectively.

[0053] For example, refer to Figures 1-3 As shown, the heat exchanger 1 includes a heat exchange body 11 and a connector 12. The heat exchange body 11 defines a heat exchange flow channel. The connector 12 includes a main body 121 and a connecting part 122. The two ends of the main body 121 along the length direction are respectively connected to the connecting part 122. The two connecting parts 122 are respectively supported on the heat exchange body 11 to connect with the heat exchange body 11. An installation port is formed on the main body 121. The connector 2 is matched with the installation port and can be inserted into the installation port to connect with the main body 121. The connector 12 is provided with a first connecting flow channel and a second connecting flow channel. The first connecting flow channel is used to connect the first flow channel 24 to one end of the heat exchange flow channel, and the second connecting flow channel is used to connect the second flow channel 25 to the other end of the heat exchange flow channel.

[0054] The above settings allow for more flexible relative positions between the heat exchange channel and the connector 2, which helps to meet design requirements and improves the practicality of the heat exchange assembly 100.

[0055] In some embodiments of this utility model, both the heat exchange body 11 and the adapter 12 are metal parts, and the heat exchange body 11 and the adapter 12 are welded together, such as by brazing. This improves the connection strength between the heat exchange body 11 and the adapter 12, enhances the sealing of the heat exchange channel, and improves the reliability of the heat exchange assembly 100.

[0056] In some embodiments of this utility model, both the connector 2 and the adapter 12 are metal parts, and the adapter 12 is welded to the connector 2, such as by brazing. This improves the connection strength between the adapter 12 and the connector 2, and also improves the sealing performance of the heat exchange channel with the first channel 24 and the second channel 25, thereby enhancing the reliability of the heat exchange assembly 100.

[0057] In some embodiments of this utility model, such as Figures 2-3As shown, one of the heat exchanger 1 and the external connector 3 is provided with a connection hole 33; the connection hole 33 includes a first hole section 331 and a second hole section 332 arranged in sequence. The second hole section 332 is located at the open end of the connection hole 33. The diameter of the second hole section 332 is larger than the diameter of the first hole section 331. The end of the first tube section 21 extends into the first hole section 331 and is sealed with the inner peripheral wall of the first hole section 331. The second tube section 22 extends into the second hole section 332 and is sealed with the inner peripheral wall of the second hole section 332.

[0058] For example, the first tube section 21 can be configured such that one end of the first tube section 21 protrudes axially toward the external connector 3 from the axial end of the second tube section 22, and the external connector 3 is provided with a connection hole 33, with the end of the connector 2 facing the external connector 3 extending into the connection hole 33; or, the first tube section 21 can be configured such that one end of the first tube section 21 protrudes axially toward the heat exchanger 1 from the axial end of the second tube section 22, and the heat exchanger 1 is provided with a connection hole 33, with the end of the connector 2 facing the heat exchanger 1 extending into the connection hole 33; or, both ends of the first tube section 21 can be configured such that both axial ends protrude axially toward the axial end of the second tube section 22, and both the external connector 3 and the heat exchanger 1 are provided with connection holes 33, with both ends of the connector 2 extending into the connection hole 33 of the external connector 3 and the connection hole 33 of the heat exchanger 1, respectively.

[0059] The above settings can improve the sealing performance of the first flow channel 24 and the second flow channel 25, which helps prevent refrigerant leakage and improves the reliability of the heat exchange assembly 100.

[0060] In some embodiments of this utility model, the end of the first tube 21 is spaced apart from the end of the first hole section 331 to define a slow flow cavity 34, which is connected to the third flow channel 31 or the heat exchange flow channel.

[0061] For example, such as Figure 3 As shown, the first tube section 21 can be configured such that one end of the first tube section 21 protrudes axially toward the external connector 3 from the axial end of the second tube section 22. The external connector 3 is provided with a connecting hole 33. The end of the first tube section 21 extends into the first hole section 331 of the connecting hole 33. A space is provided between the end of the first tube section 21 and the bottom wall of the first hole section 331 to define a slow-flow cavity 34. The slow-flow cavity 34 communicates with the third flow channel 31. The refrigerant in the third flow channel 31 can flow through the slow-flow cavity 34 to flow into the first flow channel. Alternatively, the first tube 21 can be provided with one end protruding axially toward the heat exchanger 1 from the axial end of the second tube 22. The heat exchanger 1 is provided with a connecting hole 33. The end of the first tube 21 extends into the first hole section 331 of the connecting hole 33. The end of the first tube 21 and the bottom wall of the first hole section 331 are spaced apart to define a slow flow cavity 34. The slow flow cavity 34 is connected to the heat exchange channel. The refrigerant in the first channel 24 can flow through the slow flow cavity 34 to flow into the heat exchange channel.

[0062] The above settings can reserve buffer space for the refrigerant, thereby improving the flow stability of the refrigerant when it flows into (or out of) the first flow channel 24, increasing the flow velocity of the refrigerant, and thus improving the heat exchange efficiency of the heat exchange component 100.

[0063] In some embodiments of this utility model, such as Figure 4 As shown, a receiving groove 26 may be provided on the outer peripheral wall of the first tube section 21 and / or the second tube section 22. The receiving groove 26 is used to receive the sealing ring 4, and the sealing ring 4 is used to seal against the inner peripheral wall of the connecting hole 33. It should be noted that the sealing ring 4 may be made of elastic materials such as silicone rubber or fluororubber.

[0064] Specifically, a receiving groove 26 can be provided on the outer peripheral wall of the first tube section 21, and the receiving groove 26 can accommodate a sealing ring 4. The sealing ring 4 provided on the first tube section 21 is used to seal against the inner peripheral wall of the first hole section 331; or, a receiving groove 26 can be provided on the outer peripheral wall of the second tube section 22, and the receiving groove 26 can accommodate a sealing ring 4. The sealing ring 4 provided on the second tube section 22 is used to seal against the inner peripheral wall of the second hole section 332; or, receiving grooves 26 can be provided on the outer peripheral walls of the first tube section 21 and the second tube section 22 respectively.

[0065] The above settings can improve the sealing performance of the first flow channel 24 and the second flow channel 25, which helps prevent refrigerant leakage and improves the reliability of the heat exchange assembly 100.

[0066] In some embodiments of this utility model, such as Figure 4 As shown, a plurality of receiving grooves 26 can be provided on the outer peripheral wall of the first tube section 21. The plurality of receiving grooves 26 are spaced apart along the axial direction of the first tube section 21 and accommodate sealing rings 4. The plurality of sealing rings 4 are used to seal against the inner peripheral wall of the first hole section 331 respectively. As a result, the sealing performance between the first tube section 21 and the inner peripheral wall of the first hole section 331 can be improved.

[0067] In some embodiments of this utility model, such as Figure 4 As shown, the outer peripheral wall of the second tube section 22 can be provided with multiple receiving grooves 26. The multiple receiving grooves 26 are spaced apart along the axial direction of the second tube section 22 and accommodate sealing rings 4. The multiple sealing rings 4 are used to seal against the inner peripheral wall of the second hole section 332 respectively. This can improve the sealing performance between the inner peripheral walls of the second tube section 22 and the second hole section 332.

[0068] In some embodiments of this invention, the depth of the receiving groove 26 can be greater than or equal to 2mm, such as 2mm, 3mm, 4mm, etc. This improves the installation stability of the sealing ring 4 and enhances the sealing performance of the first flow channel 24 and the second flow channel 25.

[0069] In some embodiments of this utility model, such as Figure 3 As shown, the external connector 3 is provided with a through-channel 35, which is used to connect the internal space of the battery pack 1000 with the external space. The through-channel 35 is provided with a waterproof and breathable valve, which is used to selectively connect the internal space of the battery pack 1000 with the external space to balance the air pressure inside the battery pack 1000. The through-channel 35 also exchanges heat with at least one of the third flow channel 31 and the fourth flow channel 32.

[0070] For example, when the heat exchanger 1 is used for cooling and the third flow channel 31 is the inlet flow channel, the connecting channel 35 and the third flow channel 31 can be exchanged so that the refrigerant can cool the airflow in the connecting channel 35; or, when the heat exchanger 1 is used for cooling and the fourth flow channel 32 is the inlet flow channel, the connecting channel 35 and the fourth flow channel 32 can be exchanged so that the refrigerant can cool the airflow in the connecting channel 35.

[0071] It is understandable that by cooling the airflow in the connecting channel 35, the moisture carried by the airflow can be condensed out. In this way, when the airflow in the connecting channel 35 flows into the interior of the battery pack 1000, the waterproof and breathable valve can effectively filter out the moisture in the airflow, so as to prevent the airflow from carrying moisture into the battery pack 1000 and causing water accumulation in the internal space of the battery pack 1000, thus ensuring the safety of the battery pack 1000.

[0072] In some embodiments of this utility model, such as Figure 3 As shown, the third flow channel 31 is used for heat exchange with the connecting channel 35, and a portion of the third flow channel 31 is arranged around the connecting channel 35. This increases the heat exchange area between the third flow channel 31 and the connecting channel 35, which helps improve condensation efficiency and ensures the safety of the battery pack 1000.

[0073] In some embodiments of this utility model, such as Figures 5-6 As shown, the battery pack 1000 of this embodiment of the present invention further includes an integrated controller 400. The integrated controller 400 includes a mounting frame 410 and an electrical module 420. The electrical module 420 is mounted on the mounting frame 410. The electrical module 420 includes at least one of a power distribution module 421, a control module 422, and a power conversion module 423. Both the power distribution module 421 and the power conversion module 423 are electrically connected to the control module 422. The power distribution module 421, the control module 422, and the power conversion module 423 are arranged along a first direction F1, and the control module 422 is located between the power distribution module 421 and the power conversion module 423.

[0074] Through the above technical solution, since the power distribution module 421, control module 422 and power conversion module 423 are all installed on the mounting bracket 410, the power distribution module 421, control module 422 and power conversion module 423 can be integrated together to form a whole, constituting a multi-integrated controller 400, which has a high overall compactness.

[0075] Compared to the technical solution where the power distribution module 421, control module 422, and power conversion module 423 are arranged independently and separately, this utility model provides an integrated controller 400 that integrates the power distribution module 421, control module 422, and power conversion module 423 together. On the one hand, this helps to reduce the space occupied by the power distribution module 421, control module 422, and power conversion module 423 in the battery pack 1000 and / or vehicle when they are arranged independently and separately. Furthermore, the integrated power distribution module 421, control module 422, and power conversion module 423 occupy less space overall, making it easier to arrange in the limited space of the battery pack 1000 and / or vehicle. On the other hand, the integrated controller 400 provided by this utility model integrates the power distribution module 421, control module 422, and power conversion module 423 together. During vehicle assembly, the integrated controller 400 only needs to be installed as a whole, simplifying the assembly process complexity caused by the independent assembly of the power distribution module 421, control module 422, and power conversion module 423.

[0076] Furthermore, since the control module 422 is located between the power distribution module 421 and the power conversion module 423 in the first direction F1, and both the power distribution module 421 and the power conversion module 423 are electrically connected to the control module 422, on the one hand, the control and / or signal communication of the power distribution module 421 and the control and / or signal communication of the power conversion module 423 can be controlled and / or transferred by the control module 422; on the other hand, the power distribution module 421 and the power conversion module 423 are both close to the control module 422, which facilitates the electrical connection between the power distribution module 421 and the power conversion module 423 and the control module 422. For example, the power distribution module 421 and the power conversion module 423, which are relatively close to the control module 422, can be electrically connected to the control module 422 with only short electrical connectors (such as wire harnesses and / or connectors and / or connectors). This can effectively avoid the problems of difficult wiring, complicated installation procedures, and difficulty in inspection and maintenance caused by excessively long electrical connectors and complex structures, and can also reduce wiring costs.

[0077] The aforementioned power distribution module 421 refers to a power distribution unit (PDU), whose main function is to manage and distribute power in the vehicle's high-voltage system. For example, it provides functions such as charging and discharging control, high-voltage component power-on control, circuit overload and short-circuit protection, high-voltage sampling, and low-voltage control for the entire vehicle, protecting and monitoring the operation of the high-voltage system. It should be noted that the power distribution module 421 may include all or some of the components contained in the power distribution unit; this invention does not limit this.

[0078] Control module 422 refers to a module that can realize control functions, such as controlling equipment such as motors and compressors.

[0079] Power conversion module 423 refers to a module used to achieve voltage (e.g., high voltage and low voltage) conversion, and / or DC and AC conversion.

[0080] The heat exchanger 1 is used for heat exchange with the electrical module 420, which includes at least one of a power distribution module 421, a control module 422, and a power conversion module 423. Exemplarily, the heat exchanger 1 can be configured to exchange heat with the power distribution module 421; alternatively, the heat exchanger 1 can be configured to exchange heat with the power distribution module 421, the control module 422, and the power conversion module 423 respectively, and this invention does not impose any limitations on this. This reduces the operating temperature of the integrated controller 400 and improves the reliability of the battery pack 1000.

[0081] In some embodiments of this utility model, such as Figures 6-9 As shown, the mounting bracket 410 includes a base 411, the electrical module 420 is mounted on the base 411, the heat exchanger 1 includes at least a portion of the base 411, the base 411 is provided with a flow channel for the cooling medium to flow through, the heat exchanger 1 includes the flow channel, and the electrical module 420 is able to exchange heat with the cooling medium in the flow channel.

[0082] With the above configuration, the electrical module 420 can be directly installed on the heat exchanger 1, which helps to improve the heat exchange efficiency between the heat exchanger 1 and the electrical module 420, reduces the operating temperature of the electrical module 420, and improves the practicality of the heat exchange assembly 100.

[0083] In some embodiments of this utility model, the flow channel includes a first heat exchange flow channel, which is configured to exchange heat with the electrical module 420. It should be noted that the first heat exchange flow channel is an inlet flow channel. Therefore, the electrical module 420 exchanging heat with the first heat exchange flow channel can be efficiently cooled, which helps prevent excessively high local temperatures in the electrical module 420 and improves the design rationality of the heat exchange component 100.

[0084] In some embodiments of this utility model, the flow channel includes a second heat exchange flow channel, which is configured to exchange heat with the electrical module 420. It should be noted that the second heat exchange flow channel is an outflow channel. Therefore, the cooling medium can be fully utilized, which helps to improve the heat exchange efficiency of the heat exchange element 1 and enhances the design rationality of the heat exchange assembly 100.

[0085] To achieve the electrical connection between the power distribution module 421 and the control module 422, optionally, as follows: Figures 7-11 As shown, the power distribution module 421 has a first control module connection terminal 4215 and a second control module connection terminal 4216 on the side near the control module 422. The control module 422 includes a capacitor assembly 4221. The capacitor assembly 4221 has a first power distribution connection terminal 4227 and a second power distribution connection terminal 4228 on the side near the power distribution module 421. The first control module connection terminal 4215 is electrically connected to the first power distribution connection terminal 4227, and the second control module connection terminal 4216 is electrically connected to the second power distribution connection terminal 4228.

[0086] The capacitor assembly 4221 can function to smooth the DC bus voltage and filter and reduce noise in the current. For example, when the control module 422 is used to control motor operation, the capacitor assembly 4221 can absorb the energy fed back from the motor during acceleration and deceleration, preventing damage to circuit components due to excessive voltage. During motor startup, the capacitor assembly 4221 can also provide a large instantaneous current to meet the motor's starting requirements. Furthermore, the capacitor assembly 4221 can improve the power factor of the control module 422, reduce reactive power losses, and improve energy utilization efficiency.

[0087] Because the first control module connection terminal 4215 and the second control module connection terminal 4216 of the power distribution module 421 are located close to the control module 422, and the first power distribution connection terminal 4227 and the second power distribution connection terminal 4228 on the capacitor assembly 4221 are located close to the power distribution module 421, that is, the first control module connection terminal 4215 and the second control module connection terminal 4216 are adjacent to the first power distribution connection terminal 4227 and the second power distribution connection terminal 4228, and the adjacent first control module connection terminal 4215 and the second control module connection terminal 4216 are adjacent to the first power distribution connection terminal 4227 and the second power distribution connection terminal 4228. The short distance between the connection terminals 4228 shortens the connection path between the first control module connection terminal 4215 and the second control module connection terminal 4216 and the first power distribution connection terminal 4227 and the second power distribution connection terminal 4228, facilitating electrical connection between the first control module connection terminal 4215 and the second control module connection terminal 4216 and the first power distribution connection terminal 4227 and the second power distribution connection terminal 4228, thereby reducing the wiring complexity between the first control module connection terminal 4215 and the second control module connection terminal 4216 and the first power distribution connection terminal 4227 and the second power distribution connection terminal 4228.

[0088] Since the first control module connection terminal 4215 and the second control module connection terminal 4216 are adjacent to the first power distribution connection terminal 4227 and the second power distribution connection terminal 4228, the first control module connection terminal 4215 and the second control module connection terminal 4216 can be electrically connected to the first power distribution connection terminal 4227 and the second power distribution connection terminal 4228 using short wire harnesses and / or connecting strips. The first control module connection terminal 4215 and the second control module connection terminal 4216 can also be directly electrically connected to the first power distribution connection terminal 4227 and the second power distribution connection terminal 4228 by overlapping. This helps to simplify the wiring between the power distribution module 421 and the control module 422, and further improves the compactness and space utilization of the integrated controller 400, making it easier for the integrated controller 400 to be arranged in the space-constrained battery pack 1000 and / or vehicle.

[0089] As one implementation method, such as Figure 10 As shown, the first control module connection terminal 4215 and the second control module connection terminal 4216 both extend along the first direction F1, the first power distribution connection terminal 4227 and the second power distribution connection terminal 4228 both extend along the first direction F1, the first control module connection terminal 4215 overlaps with the first power distribution connection terminal 4227, and the second control module connection terminal 4216 overlaps with the second power distribution connection terminal 4228.

[0090] The aforementioned overlap between the first control module connection terminal 4215 and the first power distribution connection terminal 4227 means that at least a portion of the first control module connection terminal 4215 and the first power distribution connection terminal 4227 overlap each other, and the electrical connection between the first power distribution connection terminal 4227 and the first control module connection terminal 4215 is achieved through the overlapping contact portion.

[0091] The aforementioned overlap between the second control module connection terminal 4216 and the second power distribution connection terminal 4228 means that at least a portion of the second control module connection terminal 4216 and the second power distribution connection terminal 4228 overlap each other, and the electrical connection between the second power distribution connection terminal 4228 and the second control module connection terminal 4216 is achieved through the overlapping contact portion.

[0092] On the one hand, the first control module connection terminal 4215 overlaps with the first power distribution connection terminal 4227, and the second control module connection terminal 4216 overlaps with the second power distribution connection terminal 4228. This avoids problems such as complex wiring and tangled wires within the integrated controller 400 caused by connecting the first control module connection terminal 4215 and the second control module connection terminal 4216 with the first power distribution connection terminal 4227 and the second power distribution connection terminal 4228 through wire harnesses or connectors. On the other hand, the overlapping connection between the first control module connection terminal 4215 and the first power distribution connection terminal 4227, and between the second control module connection terminal 4216 and the second power distribution connection terminal 4228, allows for a larger contact area, thereby meeting the current carrying requirements of the power distribution module 421 and the control module 422.

[0093] Optionally, such as Figure 10 As shown, the integrated controller 400 may further include a housing 4217, with the first control module connection terminal 4215 and the second control module connection terminal 4216 both located inside the housing 4217. The housing 4217 has a first opening 42171 on the side near the control module 422, with the first power distribution connection terminal 4227 and the second power distribution connection terminal 4228 passing through the first opening 42171. At least a portion of the first power distribution connection terminal 4227 and at least a portion of the second power distribution connection terminal 4228 are located inside the housing 4217.

[0094] Thus, when the power distribution module 421 is electrically connected to the control module 422, the first control module connection terminal 4215, the second control module connection terminal 4216, and at least some of the first power distribution connection terminals 4227 and 4228 on the control module 422 can all be shielded by the housing 4217. The housing 4217 can provide electrical isolation for the first control module connection terminal 4215, the second control module connection terminal 4216, the first power distribution connection terminal 4227, and the second power distribution connection terminal 4228, effectively preventing the first control module connection terminal 4215, the first power distribution connection terminal 4227, the second control module connection terminal 4216, and the second power distribution connection terminal 4228 from being exposed, which would affect the normal use of the power distribution module 421 and / or the control module 422, and is beneficial to improving the stability and reliability of the integrated controller 400.

[0095] In addition, the housing 4217 can also protect the first control module connection terminal 4215, the second control module connection terminal 4216, the first power distribution connection terminal 4227, and the second power distribution connection terminal 4228.

[0096] Optionally, the power distribution module 421 may also include a power distribution body, which is disposed inside the housing 4217. The power distribution body may include devices such as copper busbars and contactors.

[0097] It should be noted that the housing 4217 mentioned above and below can be the housing 4217 of the power distribution module 421. That is, the power distribution module 421 is an integral structure including the housing 4217 and encapsulated by the housing 4217, and this integral structure is mounted on the mounting bracket 410. The housing 4217 mentioned above and below can also be a housing 4217 integrally formed on the mounting bracket 410 or independently mounted on the mounting bracket 410, and the power distribution module 421 can be installed inside the housing 4217.

[0098] To facilitate the connection of the power distribution module 421 to the battery cell 300 of the battery pack 1000, optionally, such as Figure 11 As shown, the power distribution module 421 may also have a battery connection terminal group, which includes a first battery connection terminal 4211 and a second battery connection terminal 4212. The first battery connection terminal 4211 and the second battery connection terminal 4212 are located on the side of the power distribution module 421 close to the battery cell 300. The first battery connection terminal 4211 is used to electrically connect to the first busbar of the battery cell 300, and the second battery connection terminal 4212 is used to electrically connect to the second busbar of the battery cell 300.

[0099] The short distance between the adjacent first battery connection terminal 4211, second battery connection terminal 4212, first busbar and second busbar allows them to be connected by, for example, overlapping or butt joints. This simplifies the wiring between the power distribution module 421 and the battery cells 300 of the battery pack 1000, and further improves the compactness and space utilization of the battery pack 1000 with the integrated controller 400, making it easier to arrange in vehicles with limited space.

[0100] In some embodiments of this utility model, such as Figure 6 As shown, the integrated controller 400 also includes a connector assembly 43, which includes a DC charging connector 431 having a first connector terminal and a second connector terminal.

[0101] Among them, such as Figure 10 As shown, the power distribution module 421 also has a DC charging connection terminal group on the side near the DC charging connector 431. The DC charging connection terminal group includes a first DC charging connection terminal 4213 and a second DC charging connection terminal 4214. The first DC charging connection terminal 4213 is electrically connected to the first connector terminal, and the second connector terminal is electrically connected to the second DC charging connection terminal 4214.

[0102] The DC charging connector 431 is located on the side of the integrated controller 400 near the power distribution module 421, which allows for a shorter distance between the first connector terminal and the second connector terminal of the DC charging connector 431 and the first DC charging connection terminal 4213 and the second DC charging connection terminal 4214 of the power distribution module 421, thereby facilitating wiring.

[0103] Understandably, by integrating the DC charging connector 431 into the integrated controller 400, the integrated controller 400 is installed as a whole during the vehicle assembly stage, and the DC charging connector 431 is already electrically connected to the power distribution module 421. This simplifies the assembly process and saves assembly time.

[0104] Optionally, such as Figure 6 As shown, the first DC charging connection terminal 4213 is connected to the first connector terminal, and the second connector terminal is connected to the second DC charging connection terminal 4214.

[0105] By connecting the first connector terminal, the second connector terminal, the first DC charging connection terminal 4213, and the second DC charging connection terminal 4214 in an overlapping manner, it is possible to eliminate the need for wiring harnesses and / or connector strips between the power distribution module 421 and the DC charging connector 431. This simplifies the wiring between the power distribution module 421 and the DC charging connector 431 and effectively avoids problems such as complex wiring, wire harness tangling, and inconvenient disassembly and assembly caused by wiring harnesses and / or connector strips crossing the power distribution module 421.

[0106] In some embodiments of this utility model, such as Figure 6 As shown, the integrated controller 400 also includes a connector assembly 43, which includes a low-voltage connector 432. The low-voltage connector 432 is adjacent to and electrically connected to the power distribution module 421. The low-voltage connector 432 can be connected to an external power supply device, for example, an external 12V power supply device, thereby enabling 12V power supply to the control board of the power distribution module 421 and meeting the power supply requirements of the power distribution module 421.

[0107] Since the low-voltage connector 432 is adjacent to the power distribution module 421, and there is a short distance between them, the electrical connection between the low-voltage connector 432 and the power distribution module 421 can be achieved with only a short wire harness and / or connector strip. This facilitates the wiring between the low-voltage connector 432 and the power distribution module 421 and reduces wiring costs.

[0108] In some embodiments of this utility model, such as Figure 6 , Figure 11 and Figure 12 As shown, the control module 422 includes a capacitor assembly 4221, a first power conversion connection part 4222, and a second power conversion connection part 4223. The first power conversion connection part 4222 and the second power conversion connection part 4223 are electrically connected to the power distribution module 421. The first power conversion connection part 4222 and the second power conversion connection part 4223 are located on the side of the capacitor assembly 4221 near the power conversion module 423. The power conversion module 423 is provided with a first control module connection part 4231 and a second control module connection part 4232 on the side near the control module 422. The first power conversion connection part 4222 is electrically connected to the first control module connection part 4231, and the second power conversion connection part 4223 is electrically connected to the second control module connection part 4232.

[0109] In other words, the first power conversion connection part 4222 and the second power conversion connection part 4223 are arranged adjacent to the first control module connection part 4231 and the second control module connection part 4232. The distance between the adjacent first power conversion connection part 4222 and the second power conversion connection part 4223 and the first control module connection part 4231 and the second control module connection part 4232 is short. Only a short wire harness and / or connector is needed to realize the electrical connection between the first power conversion connection part 4222 and the second power conversion connection part 4223 and the first control module connection part 4231 and the second control module connection part 4232. This helps to simplify the wiring between the control module 422 and the power conversion module 423, reduce the wiring length, avoid problems such as messy and tangled wire harnesses caused by excessively long wiring, and reduce wiring costs.

[0110] It should be noted that this utility model does not limit the specific electrical connection method between the control module 422 and the power conversion module 423. As one embodiment of this utility model, the control module 422 and the power conversion module 423 can be electrically connected by a flexible wire. The flexible wire can have a certain deformation capability while meeting the current flow area requirements, thereby further facilitating the wiring between the control module 422 and the power conversion module 423.

[0111] To improve the security of the integrated controller 400, optionally, such as Figure 11 As shown, the control module 422 also includes a first fuse element 4224, a first electrical connector 4225, and a second electrical connector 4226. The first electrical connector 4225 and the second electrical connector 4226 are located in the power conversion module 423 and are electrically connected to the power distribution module 421. The first fuse element 4224 is located in the power conversion module 423. The first end of the first fuse element 4224 is electrically connected to the first electrical connector 4225. The first power conversion connection part 4222 is disposed on the second end of the first fuse element 4224, and the second power conversion connection part 4223 is disposed on the second electrical connector 4226.

[0112] By setting a first fuse element 4224 and placing it in the circuit between the power distribution module 421 and the power conversion module 423, when current flows through the first fuse element 4224, if an abnormal current occurs, such as a short circuit in one of the power distribution module 421 and / or the power conversion module 423 causing the current to significantly exceed the normal range, the first fuse element 4224 can quickly disconnect the electrical connection between the power distribution module 421 and the power conversion module 423, preventing equipment damage and fire risks caused by abnormal current, thus improving the safety of the integrated controller 400.

[0113] Furthermore, since the first fuse element 4224 is located in the power conversion module 423, the first fuse element 4224 can also have a shorter distance from the power conversion module 423, which facilitates wiring and shortens the length of the wire harness and / or connector.

[0114] In addition, the first fuse element 4224 located in the power conversion module 423 can make reasonable use of the space within the integrated controller 400, and is also conducive to further improving the compactness of the integrated controller 400.

[0115] Optionally, such as Figures 6-10 As shown, the power conversion module 423 includes a DC-DC converter module and / or an on-board charger (OBC). Alternatively, the power conversion module 423 includes an integrated DC-DC converter and an OBC module.

[0116] The DC-DC converter module can convert high-voltage DC to low-voltage DC. The charging module can convert the AC power input from the external charging equipment into DC power and regulate the voltage to meet the charging requirements of the 300 cells in the 1000 battery pack. At the same time, it can invert the high-voltage DC power from the 300 cells into AC power and output it to external AC power equipment.

[0117] Furthermore, regarding the implementation of the power conversion module 423, which includes a DC-DC converter and an OBC integrated module, it is understood that the DC-DC converter module and the charging module are integrated into one module. The integration of the DC-DC converter module and the charging module into one module has a high degree of integration, which is beneficial to improving the integration and space utilization of the entire power conversion module 423.

[0118] Optionally, the DC-DC and OBC integrated module may include components such as a DC-DC converter, an OBC power board, a power transformer, an OBC inductor, a MOSFET clamping strip, and a MOSFET ceramic pad. In one implementation, the OBC power board, power transformer, OBC inductor, MOSFET clamping strip, and MOSFET ceramic pad can be arranged sequentially along a vertical direction (i.e., the third direction mentioned below).

[0119] This utility model also proposes a battery pack 1000.

[0120] like Figure 5 As shown, the battery pack 1000 according to an embodiment of the present invention includes a heat exchange assembly 100 according to any of the above embodiments.

[0121] According to the embodiment of the present utility model, the heat exchange component 100 of the battery pack 1000 has a simple structure, low processing difficulty, and high assembly efficiency, which can reduce the production cost of the battery pack 1000.

[0122] In some embodiments of the present invention, the battery pack 1000 of the present invention further includes: a battery cell 300 and an electrical module 420. The battery pack 1000 has a first receiving cavity 201 and a second receiving cavity 202. The battery cell 300 is received in the first receiving cavity 201, the electrical module 420 is received in the second receiving cavity 202, and a heat exchanger 1 is used to exchange heat with the electrical module 420. The heat exchanger 1 is detachably installed in the second receiving cavity 202.

[0123] For example, refer to Figure 5 As shown, the battery pack 1000 includes a bottom cover 200, a battery cell 300, and an electrical module 420. The bottom cover 200 has a first receiving cavity 201 and a second receiving cavity 202, which are spaced apart. The battery cell 300 is disposed in the first receiving cavity 201, and the electrical module 420 is disposed in the second receiving cavity 202.

[0124] The electrical module 420 is electrically connected to the battery cell 300. The electrical module 420 is used to control the selective charging and discharging of the battery cell 300. The heat exchanger 1 is plate-shaped and is detachably installed in the second receiving cavity 202. The heat exchanger 1 is used to exchange heat with the electrical module 420. The external connector 3 is connected to the heat exchanger 1 through the connector 2. The external connector 3 penetrates the side wall of the bottom cover 200 to extend to the outside of the bottom cover 200 and is connected to the external pipeline.

[0125] For example, the refrigerant in the external pipeline can flow through the third channel 31 and the first channel 24 to flow into the heat exchange channel. The refrigerant flows along the heat exchange channel and exchanges heat with the electrical module 420 to cool the electrical module 420. After heat exchange, the refrigerant flows through the second channel 25 and the fourth channel 32 to flow back into the external pipeline.

[0126] With the above settings, the electrical module 420 can be cooled efficiently, so that the battery pack 1000 can work normally and the reliability of the battery pack 1000 can be improved.

[0127] In some embodiments of this utility model, such as Figure 3 and Figure 5 As shown, the external connector 3 forms a connecting channel 35, which connects the second receiving cavity 202 with the external space of the bottom cover 200. The connecting channel 35 is provided with a waterproof and breathable valve, and the connecting channel 35 exchanges heat with at least one of the third flow channel 31 and the fourth flow channel 32.

[0128] For example, when the third flow channel 31 is an inlet flow channel, the third flow channel 31 can be exchanged with the connecting channel 35 so that the refrigerant in the third flow channel 31 can cool the airflow in the connecting channel 35; or, when the fourth flow channel 32 is an inlet flow channel, the fourth flow channel 32 can be exchanged with the connecting channel 35 so that the refrigerant in the fourth flow channel 32 can cool the airflow in the connecting channel 35.

[0129] It is understandable that by cooling the airflow in the connecting channel 35, the moisture carried by the airflow can be condensed out. In this way, when the airflow in the connecting channel 35 flows into the interior of the battery pack 1000, the waterproof and breathable valve can effectively filter out the moisture in the airflow, so as to prevent the airflow from carrying moisture into the battery pack 1000 and causing water accumulation in the internal space of the battery pack 1000, thus ensuring the safety of the battery pack 1000.

[0130] In some embodiments of this utility model, the external connector 3 can be fixedly connected to the bottom cover 200, such as by welding the external connector 3 to the bottom cover 200. This improves the installation stability of the external connector 3, enhances the fit stability between the heat exchanger 1 and the external connector 3, reduces the probability of refrigerant leakage, and improves the overall sealing performance of the battery pack 1000, thereby increasing the reliability of the battery pack 1000.

[0131] In some embodiments of this utility model, the heat exchanger 1 can be detachably connected to the bottom cover 200. For example, the heat exchanger 1 can be provided with mounting holes, and fasteners can pass through these holes and be connected to the bottom cover 200, thereby detachably mounting the heat exchanger 1 onto the bottom cover 200. This improves the installation stability of the heat exchanger 1, enhances the fit stability between the heat exchanger 1 and the external connector 3, reduces the probability of refrigerant leakage, and improves the reliability of the battery pack 1000.

[0132] This utility model also proposes an electrical device.

[0133] The electrical device according to an embodiment of the present invention includes a battery pack 1000 according to any of the above embodiments. It should be noted that the electrical device can be any of the following: a pure electric vehicle, a hybrid vehicle, or a drone.

[0134] According to the embodiments of the present invention, the heat exchange component 100 of the electrical equipment has a simple structure, low processing difficulty, and high assembly efficiency, which can reduce the production cost of the battery pack 1000 and improve the product competitiveness of the electrical equipment.

[0135] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0136] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A heat exchange assembly (100), characterized in that, include: Heat exchanger (1), wherein a heat exchange flow channel is formed inside the heat exchanger (1); The connector (2) is provided with a first flow channel (24) and a second flow channel (25), the first flow channel (24) and the second flow channel (25) are respectively connected to the heat exchange flow channel, and the connector (2) is adapted to be connected to an external connector (3).

2. The heat exchange assembly (100) according to claim 1, characterized in that, The second flow channel (25) is disposed around the first flow channel (24); and / or, The first flow channel (24) and the second flow channel (25) are coaxially arranged.

3. The heat exchange assembly (100) according to claim 2, characterized in that, The connector (2) includes a first tube (21) and a second tube (22). The first tube (21) defines the first flow channel (24), and the second tube (22) is sleeved on the outside of the first tube (21). The second tube (22) and the first tube (21) together define the second flow channel (25).

4. The heat exchange assembly (100) according to claim 3, characterized in that, The second tube (22) is connected to the first tube (21) via a supporting rib (23); or, At least one axial end of the first tube (21) protrudes from the axial end of the second tube (22).

5. The heat exchange assembly (100) according to claim 3, characterized in that, The diameter of the first flow channel (24) is greater than or equal to 6 mm; and / or the minimum wall thickness of the first tube (21) is greater than or equal to 1.5 mm; and / or the minimum wall thickness of the second tube (22) is greater than or equal to 1.5 mm.

6. The heat exchange assembly (100) according to claim 1, characterized in that, The first flow channel (24) is an inlet flow channel, and the flow area of ​​the first flow channel (24) is smaller than the flow area of ​​the second flow channel (25); and / or, The connector (2) is inserted into the heat exchanger (1).

7. The heat exchange assembly (100) according to claim 1, characterized in that, The heat exchanger (1) includes a heat exchange body (11) and a connector (12). The heat exchange body (11) defines the heat exchange channel. The connector (12) is connected to the heat exchange body (11). The connector (12) has an installation port. The connector (2) is inserted into the installation port to connect with the connector (12). The connector (12) is used to connect the heat exchange channel to the first channel (24) and the second channel (25) respectively.

8. The heat exchange assembly (100) according to claim 1, characterized in that, One of the heat exchanger (1) and the external connector (3) is provided with a connection hole (33). The connector (2) includes a first tube (21) and a second tube (22). The connecting hole (33) includes a first hole segment (331) and a second hole segment (332) arranged in sequence. The second hole segment (332) is located at the open end of the connecting hole (33). The diameter of the second hole segment (332) is larger than the diameter of the first hole segment (331). The end of the first tube (21) extends into the first hole segment (331) and is sealed with the inner peripheral wall of the first hole segment (331). The second tube (22) extends into the second hole segment (332) and is sealed with the inner peripheral wall of the second hole segment (332).

9. The heat exchange assembly (100) according to claim 8, characterized in that, The end of the first tube (21) is spaced apart from the end of the first hole section (331) to define a slow-flow cavity (34).

10. The heat exchange assembly (100) according to claim 8, characterized in that, The outer peripheral wall of the first tube section (21) and / or the second tube section (22) is provided with a receiving groove (26), the receiving groove (26) is used to receive a sealing ring (4), the sealing ring (4) is used to seal against the inner peripheral wall of the connecting hole (33); or, The outer peripheral wall of the first tube (21) and / or the second tube (22) is provided with a receiving groove (26), the receiving groove (26) is used to receive a sealing ring (4), the sealing ring (4) is used to seal against the inner peripheral wall of the connecting hole (33), and the depth of the receiving groove (26) is greater than or equal to 2 mm.

11. The heat exchange assembly (100) according to claim 1, characterized in that, The external connector (3) is provided with a third flow channel (31) and a fourth flow channel (32). The third flow channel (31) is used to communicate with the first flow channel (24), and the fourth flow channel (32) is used to communicate with the second flow channel (25). The external connector (3) is provided with a through channel (35) that passes through it. The through channel (35) is provided with a waterproof and breathable valve. The through channel (35) exchanges heat with at least one of the third flow channel (31) and the fourth flow channel (32).

12. The heat exchange assembly (100) according to any one of claims 1-11, characterized in that, The heat exchanger (1) is used to exchange heat with the electrical module (420), which includes at least one of the power distribution module (421), the control module (422), and the power conversion module (423).

13. A battery pack (1000), characterized in that, Includes the heat exchange assembly (100) according to any one of claims 1-12.

14. The battery pack (1000) according to claim 13, characterized in that, Also includes: The battery pack (1000) has a first receiving cavity (201) and a second receiving cavity (202), wherein the battery cell (300) is received in the first receiving cavity (201) and the electrical module (420) is received in the second receiving cavity (202), and a heat exchanger (1) is used to exchange heat with the electrical module (420), and the heat exchanger (1) is detachably installed in the second receiving cavity (202).

15. An electrical appliance, characterized in that, Includes the battery pack (1000) according to claim 13 or 14.

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