Liquid-cooled terminal assembly, connector assembly, charging gun, charging device, and vehicle

Abstract

The application discloses a liquid cooling terminal assembly, a connector assembly, a charging gun, a charging device and a vehicle, relates to the technical field of vehicles, and aims to solve the problem of poor cooling effect of the liquid cooling terminal assembly during charging. The liquid cooling terminal assembly comprises a shell and a conductive terminal. At least part of the conductive terminal is arranged in the shell, and the interior of the shell is divided into a first cooling cavity and a second cooling cavity which are independent of each other, the first cooling cavity is suitable for the inlet of a cooling medium, and the second cooling cavity is suitable for the outlet of the cooling medium.

Description

Technical Field

[0001] This invention relates to the field of vehicle technology, and more particularly to liquid-cooled terminal assemblies, connector assemblies, charging guns, charging equipment, and vehicles. Background Technology

[0002] With the increasing popularity of new energy vehicles, the importance of charging equipment related to these vehicles has become increasingly apparent. In order to shorten charging time and increase charging power, charging equipment typically generates a large charging current and heat due to current loss.

[0003] In related technologies, when using a liquid-cooled charging gun to charge a vehicle, the liquid-cooled terminal assembly in the charging gun can conduct current and cool the cables simultaneously to ensure the safety of the charging process. However, existing liquid-cooled terminal assemblies have poor cooling performance during charging. Summary of the Invention

[0004] The purpose of this invention is to provide a liquid-cooled terminal assembly, a connector assembly, a charging gun, a charging device, and a vehicle, in order to solve the problem of poor cooling effect of the liquid-cooled terminal assembly during charging.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] This application provides a liquid-cooled terminal assembly, which includes a housing and conductive terminals. At least a portion of the conductive terminals are disposed within the housing, dividing the internal space of the housing into a first cooling chamber and a second cooling chamber, which are independent of each other. The first cooling chamber is adapted to receive a cooling medium, and the second cooling chamber is adapted to discharge the cooling medium.

[0007] The liquid-cooled terminal assembly provided in this application has a portion of the housing where the conductive terminals are located, dividing the housing into a first cooling cavity and a second cooling cavity. The opposite sides of the conductive terminals can respectively contact the cooling medium in the first cooling cavity and the second cooling cavity, so that the cooling medium can fully cool the conductive terminals, thereby improving the cooling effect of the liquid-cooled terminal assembly and ensuring the safety of the charging process.

[0008] In some embodiments of this application, the liquid-cooled terminal assembly further includes a wire body, which includes a conductive core and a cooling connecting pipe. The conductive core is electrically connected to the conductive terminal, and the cooling connecting pipe covers at least a portion of the conductive core and is capable of connecting a first cooling cavity and a second cooling cavity.

[0009] In some embodiments of this application, a cooling channel is formed between the inner wall surface of the cooling connecting pipe and the outer wall surface of the conductive core, and the cooling channel connects the first cooling cavity and the second cooling cavity, and / or a cooling channel is formed between the inner wall surface of the cooling connecting pipe and the outer wall surface of the cooling connecting pipe, and the cooling channel connects the first cooling cavity and the second cooling cavity.

[0010] In some embodiments of this application, the portion of the conductive terminal located within the housing includes a first wiring segment. The first wiring segment has a first wiring surface and a second wiring surface facing away from each other. The first wiring surface faces the first cooling cavity, and the second wiring surface faces the second cooling cavity. The wire body includes a first wire body and a second wire body. The first wire body is connected to the first wiring surface, and the second wire body is connected to the second wiring surface.

[0011] In some embodiments of this application, the first wire includes a first conductive core and a first cooling connecting pipe, and the second wire includes a second conductive core and a second cooling connecting pipe, wherein the first cooling connecting pipe is connected to the second cooling connecting pipe.

[0012] In some embodiments of this application, the portion of the conductive terminal located inside the housing further includes a heat dissipation section, which is connected to the first wiring section and contacts the cooling medium inside the first cooling cavity and the second cooling cavity.

[0013] In some embodiments of this application, the heat dissipation segment includes a heat dissipation substrate and a plurality of heat dissipation fins. The heat dissipation substrate is connected to the first wiring segment, and the heat dissipation substrate has a first heat dissipation surface and a second heat dissipation surface facing away from each other, the first heat dissipation surface facing the first cooling cavity, and the second heat dissipation surface facing the second cooling cavity. The plurality of heat dissipation fins are disposed on at least the first heat dissipation surface and / or the second heat dissipation surface, and the plurality of heat dissipation fins are spaced apart.

[0014] In some embodiments of this application, the portion of the conductive terminal located inside the housing further includes a sealing section, which is connected to the end of the heat dissipation section away from the first wiring section. The housing body corresponds to the periphery of the sealing section, the heat dissipation section, and the first wiring section, and the outer peripheral wall of the sealing section is sealed to the inner peripheral wall of the side wall to seal one end of the first cooling cavity and the second cooling cavity.

[0015] In some embodiments of this application, the conductive terminal further includes a second wiring segment connected to the end of the sealing segment away from the heat dissipation segment, and at least a portion of the second wiring segment is located outside the housing, suitable for connection to a power source.

[0016] In some embodiments of this application, the conductive terminal is a copper busbar, and the first wiring segment, heat dissipation segment, sealing segment, and second wiring segment are integrally formed.

[0017] In some embodiments of this application, the housing further includes a housing tail plate, which is detachably connected to the housing body and closes the other end of the first cooling cavity and the second cooling cavity.

[0018] In some embodiments of this application, a connecting pipe is provided on the side of the tail plate of the housing opposite to the housing body. A conductive core passes through the inner cavity of the connecting pipe, and a cooling connecting pipe is sleeved on the outer wall of the connecting pipe.

[0019] In some embodiments of this application, the liquid-cooled terminal assembly further includes a fastening sleeve disposed around the cooling connecting pipe for applying a clamping force toward the connecting pipe to the cooling connecting pipe.

[0020] In some embodiments of this application, the liquid-cooled terminal assembly further includes an inlet pipe and an outlet pipe, one end of the inlet pipe being connected to a first cooling chamber and the other end being adapted to allow the introduction of a cooling medium, and the outlet pipe being connected to a second cooling chamber.

[0021] In some embodiments of this application, the inlet pipe is detachably connected to the housing, and the outlet pipe is detachably connected to the housing.

[0022] This application also provides a connector assembly including at least one liquid-cooled terminal assembly, wherein at least one of the liquid-cooled terminal assemblies is the liquid-cooled terminal assembly described above.

[0023] In some embodiments of this application, at least one liquid-cooled terminal assembly includes a first liquid-cooled terminal assembly and a second liquid-cooled terminal assembly, wherein the first liquid-cooled terminal assembly and / or the second liquid-cooled terminal assembly are as described above. The conductive terminals in the first liquid-cooled terminal assembly are adapted to connect to the positive terminal of a power supply, and the wires in the first liquid-cooled terminal assembly are adapted to connect to the positive terminal of the device to be charged. The conductive terminals in the second liquid-cooled terminal assembly are adapted to connect to the negative terminal of a power supply, and the wires in the second liquid-cooled terminal assembly are adapted to connect to the negative terminal of the device to be charged.

[0024] This application also provides a charging gun, which includes the liquid-cooled terminal assembly described above and / or the connector assembly described above.

[0025] This application also provides a charging device, which includes the liquid-cooled terminal assembly and / or the connector assembly and charging gun described above.

[0026] This application also provides a vehicle that includes the liquid-cooled terminal assembly described above and / or the connector assembly described above. Attached Figure Description

[0027] 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.

[0028] Figure 1 This is a schematic diagram of the vehicle structure provided in an embodiment of this application;

[0029] Figure 2 This is a schematic diagram of the structure of the liquid-cooled terminal assembly provided in the embodiments of this application;

[0030] Figure 3 for Figure 2 A schematic diagram of the cross-sectional structure at location AA;

[0031] Figure 4 This is an exploded structural diagram of the liquid-cooled terminal assembly provided in an embodiment of this application.

[0032] Figure label:

[0033] 1000. Vehicle; 101. Power battery; 102. Drive wheel; 103. Vehicle body;

[0034] 100. Liquid-cooled terminal assembly;

[0035] 10. Shell; 11. First cooling chamber; 12. Second cooling chamber; 13. Shell body; 14. Shell tail plate; 15. Connecting pipe;

[0036] 20. Conductive terminal; 21. First wiring segment; 211. First wiring surface; 212. Second wiring surface; 22. Heat dissipation segment; 221. Heat dissipation substrate; 222. Heat dissipation fins; 23. Sealing segment; 24. Second wiring segment;

[0037] 30. Wire body; 31. Conductive core; 32. Cooling connecting pipe; 33. First wire body; 331. First conductive core; 332. First cooling connecting pipe; 34. Second wire body; 341. Second conductive core; 342. Second cooling connecting pipe;

[0038] 41. Fastening sleeve; 42. Liquid inlet pipe; 43. Liquid outlet pipe; 44. Sealing ring. Detailed Implementation

[0039] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0040] Figure 1 This is a schematic diagram of the vehicle structure provided in the embodiments of this application. Figure 1 The vehicle in this application can be a pure electric vehicle or a hybrid vehicle. The vehicle 1000 includes a power battery 101, drive wheels 102 and a body 103. The power battery 101 can provide power to the drive wheels 102, so that the drive wheels 102 drive the body 103 to move relative to the road surface.

[0041] To enable fast charging of vehicle 1000 and improve the user experience, this application also provides a charging device. The charging device may include a charging pile and a charging gun. The charging gun may include a charging gun body and a connector assembly disposed on the charging gun body. One end of the connector assembly is connected to the power source in the charging pile, and the other end can be connected to the device to be charged (such as the power battery in a vehicle or power tool). The connector assembly can convert the AC power of the power source into DC power and store it in the power battery, thereby completing the charging process.

[0042] Because the current flowing through the connector assembly is large during fast charging, the heat generated by current loss is also significant, causing the charging gun's temperature to gradually rise. To ensure the safety of the fast charging process, the connector assembly provided in this application may include at least one liquid-cooled terminal assembly. This liquid-cooled terminal assembly can effectively cool the current while conducting it, thereby ensuring safety during fast charging. The specific structure of the liquid-cooled terminal assembly in this application will be described in detail below with reference to the accompanying drawings.

[0043] Figure 2 This is a schematic diagram of the structure of the liquid-cooled terminal assembly provided in the embodiments of this application. Figure 3 for Figure 2 A cross-sectional structural diagram at location AA, in conjunction with reference. Figure 2 and Figure 3This application provides a liquid-cooled terminal assembly 100, which includes a housing 10, conductive terminals 20, and a wire 30. At least a portion of the conductive terminals 20 is disposed within the housing 10, dividing the internal space of the housing 10 into a first cooling chamber 11 and a second cooling chamber 12, which are independent of each other. The first cooling chamber 11 is adapted to receive a cooling medium, and the second cooling chamber 12 is adapted to discharge the cooling medium. The wire 30 is electrically connected to the portion of the conductive terminals 20 located within the housing 10, and the wire 30 can communicate with the first cooling chamber 11 and the second cooling chamber 12.

[0044] Understandably, the portion of the conductive terminal 20 located within the housing 10 divides the housing 10 into a first cooling chamber 11 and a second cooling chamber 12, and the wire 30 is electrically connected to the portion of the conductive terminal 20 located within the housing 10. In this way, the connection between the conductive terminal 20 and the wire 30 can contact the first cooling chamber 11 and the second cooling chamber 12, allowing the cooling medium within the first cooling chamber 11 and the second cooling chamber 12 to cool the connection between the conductive terminal 20 and the wire 30, thereby improving the cooling effect of the liquid-cooled terminal assembly 100 and ensuring the safety of the charging process.

[0045] In related technologies, because the conductive terminal 20 and the wire 30 are connected by a crimping method, the connection part cannot come into contact with the cooling medium, resulting in poor cooling effect of the liquid-cooled terminal assembly 100. At the same time, the continuous heat generated by the connection part causes the temperature in the vicinity to rise, which can easily lead to safety problems.

[0046] It should be noted that the above-mentioned cooling medium is an insulating cooling medium, and its specific physical form can be gaseous, liquid, or gas-liquid mixture, such as deionized water, hydrocarbon, organosilicon coolant, and fluorocarbon coolant.

[0047] Figure 4 This is an exploded view of the liquid-cooled terminal assembly provided in the embodiments of this application, in conjunction with reference to... Figure 3 and Figure 4 In some embodiments of this application, the wire body 30 includes a conductive core 31 and a cooling connecting pipe 32. The conductive core 31 is electrically connected to the conductive terminal 20, and the cooling connecting pipe 32 covers at least a portion of the conductive core 31 and is capable of connecting the first cooling cavity 11 and the second cooling cavity 12.

[0048] In this way, current can be transmitted through the conductive core 31, and the cooling medium can flow from the first cooling cavity 11 to the second cooling cavity 12 through the cooling connecting pipe 32, and can cool the conductive core 31 located inside the cooling connecting pipe 32 during the flow process.

[0049] In some embodiments of this application, the conductive core 31 is welded to the conductive terminal 20.

[0050] Understandably, this application uses welding to connect the conductive core 31 and the conductive terminal 20, which can reduce the resistance at the connection point, thus reducing the heat loss during current transmission and reducing the need for heat dissipation and cooling, as well as the current loss during transmission.

[0051] See also Figure 3 and Figure 4 In some embodiments of this application, a cooling channel is formed between the inner wall surface of the cooling connecting pipe 32 and the outer wall surface of the conductive core 31, and the cooling channel connects the first cooling cavity 11 and the second cooling cavity 12. Alternatively, a cooling channel is formed between the inner wall surface of the cooling connecting pipe 32 and the outer wall surface of the cooling connecting pipe 32, and the cooling channel connects the first cooling cavity 11 and the second cooling cavity 12.

[0052] See also Figure 3 and Figure 4 In some embodiments of this application, the portion of the conductive terminal 20 located within the housing 10 includes a first wiring segment 21. The first wiring segment 21 has a first wiring surface 211 and a second wiring surface 212 facing away from each other. The first wiring surface 211 faces the first cooling cavity 11, and the second wiring surface 212 faces the second cooling cavity 12. The wire 30 includes a first wire 33 and a second wire 34. The first wire 33 is connected to the first wiring surface 211, and the second wire 34 is connected to the second wiring surface 212.

[0053] Understandably, this application divides the wire 30 into two strands, which are respectively welded to the upper and lower surfaces of the first connecting segment 21. The connection position of the first wire 33 and the first connecting segment 21 can contact the first cooling cavity 11, and the connection position of the second wire 34 and the first connecting segment 21 can contact the second cooling cavity 12.

[0054] In this way, on the one hand, the contact area between the connection part of the wire body 30 and the first connecting segment 21 and the first cooling cavity 11 and the second cooling cavity 12 can be increased, thereby improving the cooling effect; on the other hand, the radial dimension of the wire body 30 can be reduced, making the wire body 30 relatively easy to bend and convenient for user operation.

[0055] See also Figure 3 and Figure 4 In some embodiments of this application, the first wire 33 includes a first conductive core 331 and a first cooling connecting pipe 332, and the second wire 34 includes a second conductive core 341 and a second cooling connecting pipe 342, wherein the first cooling connecting pipe 332 is connected to the second cooling connecting pipe 342.

[0056] In this way, the cooling medium in the first cooling chamber 11 can enter the receiving cavity in the charging gun body through the first cooling connecting pipe 332, and then enter the second cooling chamber 12 through the second cooling connecting pipe 342 from the receiving cavity, so that the length of the cooling flow path can match the transmission length of the current, ensuring the cooling effect of the current during transmission.

[0057] See also Figure 3 and Figure 4 In some embodiments of this application, the portion of the conductive terminal 20 located inside the housing 10 further includes a heat dissipation section 22. The heat dissipation section 22 is connected to the first wiring section 21. The heat dissipation section 22 is in contact with the cooling medium in the first cooling cavity 11 and the second cooling cavity 12, and the heat dissipation section 22 is thermally connected to the first wiring section 21.

[0058] In this way, the heat generated at the connection between the first terminal segment 21 and the wire body 30 can be conducted to the heat dissipation segment 22 first, and then dissipated to the cooling medium in the first cooling cavity 11 and the second cooling cavity 12, thereby improving the cooling effect of the conductive terminal 20.

[0059] Continue reading Figure 4 In some embodiments of this application, the heat dissipation section 22 includes a heat dissipation substrate 221 and a plurality of heat dissipation fins 222. The heat dissipation substrate 221 is connected to the first wiring section 21. The heat dissipation substrate 221 has a first heat dissipation surface and a second heat dissipation surface facing away from each other. The first heat dissipation surface faces the first cooling cavity 11, and the second heat dissipation surface faces the second cooling cavity 12. The plurality of heat dissipation fins 222 are provided on at least the first heat dissipation surface and / or the second heat dissipation surface, and the plurality of heat dissipation fins 222 are spaced apart.

[0060] In this way, the contact area between the heat dissipation section 22 and the first cooling cavity 11 and the second cooling cavity 12 can be increased by multiple heat dissipation fins 222, thereby further improving the cooling effect.

[0061] See also Figure 3 and Figure 4 In some embodiments of this application, the portion of the conductive terminal 20 located within the housing 10 further includes a sealing section 23, which is connected to the end of the heat dissipation section 22 away from the first wiring section 21. The housing 10 includes a housing body 13, which corresponds to the periphery of the sealing section 23, the heat dissipation section 22, and the first wiring section 21. The outer peripheral wall of the sealing section 23 is sealed to the inner peripheral wall of the side wall to seal one end of the first cooling cavity 11 and the second cooling cavity 12.

[0062] In this way, after the sealing section 23 is sealed and connected to the housing 10, a first cooling cavity 11 and a second cooling cavity 12 are formed. The end face of the sealing section 23, the heat dissipation section 22 and the first wiring section 21 can all be immersed in the first cooling cavity 11 and the second cooling cavity 12 to ensure the cooling effect.

[0063] See also Figure 3 and Figure 4 In some embodiments of this application, the conductive terminal 20 further includes a second wiring segment 24, which is connected to the end of the sealing segment 23 away from the heat dissipation segment 22, and a portion of the second wiring segment 24 is located outside the housing 10, suitable for connection to a power source. In this way, the current from the power source can be transmitted sequentially through the second wiring segment 24, the sealing segment 23, the heat dissipation segment 22, the first wiring segment 21, and the wire 30 to the device to be charged.

[0064] In some embodiments of this application, the conductive terminal 20 is a copper busbar, and the first wiring segment 21, the heat dissipation segment 22, the sealing segment 23, and the second wiring segment 24 are integrally formed. This ensures the structural strength of the conductive terminal 20 and improves assembly efficiency.

[0065] See also Figure 3 and Figure 4 In some embodiments of this application, the housing 10 further includes a housing tail plate 14, which is detachably connected to the housing body 13. Thus, the assembler can first solder the wire 30 to the conductive terminal 20, then place the conductive terminal 20 into the housing body 13, and finally connect the housing tail plate 14 to the housing body 13.

[0066] It should be noted that the connection between the housing body 13 and the housing tail plate 14 and the sealing section 23 can be a threaded connection or a snap-fit ​​connection, as long as it can be detached and easy to assemble.

[0067] See also Figure 3 and Figure 4 In some embodiments of this application, a connecting pipe 15 is provided on the side of the housing tail plate 14 opposite to the housing body 13. The conductive core 31 passes through the inner cavity of the connecting pipe 15, and the cooling connecting pipe 32 is sleeved on the outer wall of the connecting pipe 15. In this way, the wire 30 can be limited and fixed by the connecting pipe 15, and the cooling medium can enter the cooling connecting pipe 32 from the first cooling cavity 11 through the gap between the connecting pipe 15 and the conductive core 31, or enter the second cooling cavity 12 from the cooling connecting pipe 32.

[0068] Continue reading Figure 4In some embodiments of this application, the liquid-cooled terminal assembly 100 further includes a fastening sleeve 41, which is disposed around the cooling connecting pipe 32 and is used to apply a clamping force to the cooling connecting pipe 32 pointing towards the connecting pipe 15, so that the cooling connecting pipe 32 and the connecting pipe 15 are stably connected, and to avoid the cooling connecting pipe 32 and the connecting pipe 15 from separating due to the high pressure of the cooling medium.

[0069] See also Figure 3 and Figure 4 In some embodiments of this application, the liquid-cooled terminal assembly 100 further includes an inlet pipe 42 and an outlet pipe 43. One end of the inlet pipe 42 is connected to the first cooling chamber 11, and the other end is adapted to introduce a cooling medium. The outlet pipe 43 is connected to the second cooling chamber 12.

[0070] See also Figure 3 and Figure 4 In some embodiments of this application, the inlet pipe 42 is detachably connected to the housing 10, and the outlet pipe 43 is detachably connected to the housing 10. For example, a threaded hole is provided on the housing 10, and the inlet pipe 42 and the outlet pipe 43 are respectively provided with external threads so that quick assembly or disassembly can be achieved through threaded connection, making it convenient for users to assemble during use and disassemble and store after use.

[0071] It should be noted that sealing rings 44 are provided between the housing body 13 and the housing tail plate 14, the sealing section 23, the liquid inlet pipe 42 and the liquid outlet pipe 43 to prevent leakage of the cooling medium during the flow process.

[0072] In some embodiments of this application, the connector assembly may include a first liquid-cooled terminal assembly and a second liquid-cooled terminal assembly, both of which are the liquid-cooled terminal assembly 100 described above. Specifically, the conductive terminal 20 in the first liquid-cooled terminal assembly is adapted to connect to the positive terminal of a power supply, and the wire 30 in the first liquid-cooled terminal assembly is adapted to connect to the positive terminal of the device to be charged. The conductive terminal 20 in the second liquid-cooled terminal assembly is adapted to connect to the negative terminal of a power supply, and the wire 30 in the second liquid-cooled terminal assembly is adapted to connect to the negative terminal of the device to be charged.

[0073] Understandably, the cooling medium in the first liquid-cooled terminal assembly and the cooling medium in the second liquid-cooled terminal assembly are not electrically connected, allowing for separate cooling of the positive and negative electrodes. This avoids the risk of a fire caused by a short circuit between the positive and negative electrodes in the event of cooling medium failure.

[0074] In some other embodiments of this application, the connector assembly may further include a third liquid-cooled terminal, which is also the liquid-cooled terminal assembly 100 described above. Specifically, the conductive terminal 20 in the first liquid-cooled terminal assembly is adapted to connect to the U phase of a three-phase power supply, the conductive terminal 20 in the second liquid-cooled terminal assembly is adapted to connect to the V phase of a three-phase power supply, and the conductive terminal 20 in the third liquid-cooled terminal assembly is adapted to connect to the W phase of a three-phase power supply. Thus, the connector assembly of this application can be used with three-phase power, thereby improving the current transmission efficiency and stability during fast charging.

[0075] In the description of this invention, 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 the invention and for 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. Therefore, they should not be construed as limitations on the invention. Unless otherwise specified, the above-described orientation can be flexibly set in practical applications, provided that the relative positional relationship shown in the accompanying drawings is satisfied.

[0076] 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. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0077] In the description of this invention, it should be noted that, unless otherwise explicitly 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 communication between the internal components of two elements. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0078] In embodiments of the invention, 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.

[0079] In embodiments of the present invention, the terms "exemplary" or "for example" are used to indicate that something is an example, illustration, or description. Any embodiment or design described as "exemplary" or "for example" in embodiments of the present invention should not be construed as being more preferred or advantageous than other embodiments or designs. Rather, the use of the terms "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.

[0080] 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.

[0081] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A liquid-cooled terminal assembly, characterized in that, include: Shell (10); as well as A conductive terminal (20) is provided at least in the housing (10) and divides the internal space of the housing (10) into a first cooling chamber (11) and a second cooling chamber (12) that are independent of each other. The first cooling chamber (11) is adapted to be conditioned into a cooling medium and the second cooling chamber (12) is adapted to be conditioned out of a cooling medium.

2. The liquid-cooled terminal assembly according to claim 1, characterized in that, The liquid-cooled terminal assembly also includes a wire body (30), which comprises: A conductive core (31) electrically connected to the conductive terminal (20); and A cooling connecting pipe (32) is provided, which covers at least a portion of the conductive core (31) and is capable of connecting the first cooling cavity (11) and the second cooling cavity (12).

3. The liquid-cooled terminal assembly according to claim 2, characterized in that, A cooling channel is formed between the inner wall surface of the cooling connecting pipe (32) and the outer wall surface of the conductive core (31), and the cooling channel connects the first cooling cavity (11) and the second cooling cavity (12); And / or, a cooling channel is formed between the inner wall surface of the cooling connecting pipe (32) and the outer wall surface of the cooling connecting pipe (32), and the cooling channel connects the first cooling cavity (11) and the second cooling cavity (12).

4. The liquid-cooled terminal assembly according to claim 2, characterized in that, The portion of the conductive terminal (20) located within the housing (10) includes a first wiring segment (21), the first wiring segment (21) having a first wiring surface (211) and a second wiring surface (212) facing away from each other, the first wiring surface (211) facing the first cooling cavity (11), and the second wiring surface (212) facing the second cooling cavity (12); the wire (30) includes: The first wire (33) is connected to the first wiring surface (211); and The second wire (34) is connected to the second wiring surface (212).

5. The liquid-cooled terminal assembly according to claim 4, characterized in that, The first wire (33) includes a first conductive core (331) and a first cooling connecting pipe (332); the second wire (34) includes a second conductive core (341) and a second cooling connecting pipe (342); the first cooling connecting pipe (332) is connected to the second cooling connecting pipe (342).

6. The liquid-cooled terminal assembly according to claim 4, characterized in that, The portion of the conductive terminal (20) located within the housing (10) further includes: The heat dissipation section (22) is connected to the first wiring section (21) and the heat dissipation section (22) is in contact with the cooling medium in the first cooling cavity (11) and the second cooling cavity (12).

7. The liquid-cooled terminal assembly according to claim 6, characterized in that, The heat dissipation section (22) includes: A heat dissipation substrate (221) is connected to the first wiring segment (21). The heat dissipation substrate (221) has a first heat dissipation surface and a second heat dissipation surface facing each other. The first heat dissipation surface faces the first cooling cavity (11), and the second heat dissipation surface faces the second cooling cavity (12). Multiple heat dissipation fins (222) are provided at least on the first heat dissipation surface and / or the second heat dissipation surface, and the multiple heat dissipation fins (222) are spaced apart.

8. The liquid-cooled terminal assembly according to claim 6, characterized in that, The portion of the conductive terminal (20) located inside the housing (10) also includes a sealing section (23), which is connected to the end of the heat dissipation section (22) away from the first wiring section (21); The housing (10) includes a housing body (13), which corresponds to the periphery of the sealing section (23), the heat dissipation section (22) and the first wiring section (21). The outer peripheral wall of the sealing section (23) is sealed to the inner peripheral wall of the housing body (13) to close one end of the first cooling cavity (11) and the second cooling cavity (12).

9. The liquid-cooled terminal assembly according to claim 8, characterized in that, The conductive terminal (20) further includes: The second wiring segment (24) is connected to the end of the sealing segment (23) away from the heat dissipation segment (22), and the second wiring segment (24) is at least partially located outside the housing (10) and is adapted to be connected to a power source.

10. The liquid-cooled terminal assembly according to claim 9, characterized in that, The conductive terminal (20) is a copper busbar, and the first wiring segment (21), the heat dissipation segment (22), the sealing segment (23) and the second wiring segment (24) are integrally formed.

11. The liquid-cooled terminal assembly according to any one of claims 8-10, characterized in that, The housing (10) further includes: The housing tail plate (14) is detachably connected to the housing body (13) and the housing tail plate (14) closes the other end of the first cooling cavity (11) and the second cooling cavity (12).

12. The liquid-cooled terminal assembly according to claim 11, characterized in that, The tail plate (14) of the shell is provided with a connecting pipe (15) on the side opposite to the shell body (13); The conductive core (31) is inserted into the inner cavity of the connecting pipe (15), and the cooling connecting pipe (32) is sleeved on the outer wall of the connecting pipe (15).

13. The liquid-cooled terminal assembly according to claim 12, characterized in that, Also includes: A fastening sleeve (41) is provided on the periphery of the cooling connecting pipe (32) and is used to apply a clamping force to the cooling connecting pipe (32) pointing towards the connecting pipe (15).

14. The liquid-cooled terminal assembly according to claim 1, characterized in that, Also includes: Liquid inlet pipe (42), one end of which is connected to the first cooling chamber (11), and the other end is adapted to introduce cooling medium; as well as Liquid outlet pipe (43) is connected to the second cooling chamber (12).

15. The liquid-cooled terminal assembly according to claim 14, characterized in that, The inlet pipe (42) is detachably connected to the housing (10), and the outlet pipe (43) is detachably connected to the housing (10).

16. A connector assembly, characterized in that, It includes at least one liquid-cooled terminal assembly (100), at least one of which is the liquid-cooled terminal assembly (100) according to any one of claims 1-15.

17. The connector assembly according to claim 16, characterized in that, The at least one liquid-cooled terminal assembly (100) includes a first liquid-cooled terminal assembly and a second liquid-cooled terminal assembly, wherein the first liquid-cooled terminal assembly and / or the second liquid-cooled terminal assembly is the liquid-cooled terminal assembly (100) according to any one of claims 1-15; The conductive terminal (20) in the first liquid-cooled terminal assembly is adapted to connect to the positive terminal of the power supply, and the wire (30) in the first liquid-cooled terminal assembly is adapted to connect to the positive terminal of the device to be charged; The conductive terminal (20) in the second liquid-cooled terminal assembly is adapted to connect to the negative terminal of the power supply, and the wire (30) in the second liquid-cooled terminal assembly is adapted to connect to the negative terminal of the device to be charged.

18. A charging gun, characterized in that, The charging gun includes the liquid-cooled terminal assembly (100) according to any one of claims 1-15 and / or the connector assembly according to any one of claims 16-17.

19. A charging device, characterized in that, Includes the liquid-cooled terminal assembly (100) as described in any one of claims 1-15 and / or the connector assembly as described in any one of claims 16-17 and the charging gun as described in claim 18.

20. A vehicle, characterized in that, The vehicle includes a liquid-cooled terminal assembly (100) as described in any one of claims 1-15 and / or a connector assembly as described in any one of claims 16-17.

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