Liquid-cooled connection member and charging gun

Abstract

The utility model discloses a liquid cooling connecting component and charging gun relates to new energy charging technical field, the liquid cooling connecting component includes the plug -in terminal, the connecting terminal and liquid cooling wire, the plug -in terminal is equipped with the first cavity and the first liquid inlet and the first liquid outlet of intercommunication first cavity, the connecting terminal is equipped with the second cavity and the second liquid inlet and the second liquid outlet of intercommunication second cavity, the liquid cooling wire is equipped with the cooling channel, and the both ends of liquid cooling wire are connected with plug -in terminal and connecting terminal respectively, make the both ends of cooling channel communicate with first liquid outlet and second liquid inlet respectively to form cooling flow channel, wherein, first liquid inlet is used for the cooling medium in -flow of cooling flow channel, and second liquid outlet is used for the cooling medium out -flow in cooling flow channel. The utility model provides technical scheme to reduce the temperature of terminal connecting place, guarantees the connection efficiency of terminal.

Description

Technical Field

[0001] This utility model relates to the field of new energy charging technology, and in particular to a liquid-cooled connecting component and a charging gun. Background Technology

[0002] With the continuous expansion of the electric vehicle market, high-power charging guns have become the focus of attention for related companies and customers in the industry due to their high efficiency and speed. Developing safe and efficient high-power charging guns has become a core technical issue in the industry.

[0003] Currently, however, during the transmission of large currents, a large amount of heat is generated at the terminal connection, which reduces the cooling efficiency and conductivity of the connection terminals, thus hindering the transmission of large currents. Utility Model Content

[0004] The main purpose of this invention is to provide a liquid-cooled connection component and a charging gun, which aims to reduce the temperature at the terminal connection and ensure the connection efficiency of the terminals.

[0005] To achieve the above objectives, this utility model proposes a liquid-cooled connecting component, which includes:

[0006] A plug-in terminal, wherein the plug-in terminal is provided with a first cavity and a first liquid inlet and a first liquid outlet communicating with the first cavity;

[0007] The connecting terminal is provided with a second cavity and a second liquid inlet and a second liquid outlet communicating with the second cavity; and

[0008] The liquid-cooled wire has a cooling channel, and its two ends are respectively connected to the plug-in terminal and the connection terminal, so that the two ends of the cooling channel are respectively connected to the first liquid outlet and the second liquid inlet to form a cooling flow channel; wherein, the first liquid inlet is used for the cooling medium in the cooling flow channel to flow in, and the second liquid outlet is used for the cooling medium in the cooling flow channel to flow out.

[0009] In one embodiment, the plug-in terminal includes a plug-in portion and a connecting portion. The plug-in portion has a plug-in end. The connecting portion is detachably connected to one end of the plug-in portion away from the plug-in end and surrounds the plug-in portion to form the first cavity. The connecting portion has a first liquid inlet and a first liquid outlet.

[0010] In one embodiment, the connecting portion includes:

[0011] The connecting body has a slot, the plug-in part is connected to the connecting body and covers the opening of the slot to form the first cavity, and the end of the connecting body away from the plug-in part is provided with a first connecting tube, and the first connecting tube is provided with a first liquid outlet.

[0012] The liquid inlet connector has a first through hole on the periphery of the connecting body that communicates with the empty groove. The liquid inlet connector is connected to the connecting body and communicates with the first cavity through the first through hole. The liquid inlet connector has a first liquid inlet.

[0013] In one embodiment, the connecting part further includes a locking member, the connecting body is provided with a connecting post, the connecting post is disposed adjacent to the first through hole, and the connecting post is provided with a threaded hole;

[0014] One end of the liquid inlet connector is provided with a connecting boss, the connecting boss is provided with a connecting hole, the locking member passes through the connecting hole and is threadedly engaged with the threaded hole;

[0015] And / or, a sealing ring is provided between the connecting body and the liquid inlet connector, and the sealing ring is arranged around the first through hole.

[0016] In one embodiment, the liquid inlet connector includes a first segment and a second segment connected at an angle. The first segment is connected to the connecting body, and the end of the second segment away from the first segment is provided with the first liquid inlet. The extension direction of the second segment is parallel to the extension direction of the connecting body.

[0017] In one embodiment, the plug-in portion includes a connecting platform and a connecting block. The connecting block and the plug-in end are respectively connected to both sides of the connecting platform. The connecting platform covers the opening of the slot and is connected to the connecting body. The connecting block is located in the first cavity and is connected to the liquid-cooled wire.

[0018] In one embodiment, the connecting terminal includes a main body and a liquid outlet connector. The main body is provided with a second cavity, and a second connecting pipe is provided at one end of the main body. The second connecting pipe is provided with a second liquid inlet. A second through hole is provided on the periphery of the main body. The liquid outlet connector is connected to the main body and communicates with the second cavity through the second through hole. The liquid outlet connector is provided with a second liquid inlet.

[0019] In one embodiment, the liquid-cooled conductor includes an insulating sleeve and a conductor core. The conductor core is inserted into the insulating sleeve, and a cooling channel is provided between the conductor core and the insulating sleeve. The two ends of the insulating sleeve are respectively fitted onto the first connecting tube and the second connecting tube. One end of the conductor core extends into the first cavity through the first connecting tube and is connected to the connecting block. The other end of the conductor core extends into the second cavity through the second connecting tube and is connected to the main body.

[0020] In one embodiment, the liquid-cooled wires include multiple wires, and the plug-in terminal is provided with multiple first liquid outlets, each of which corresponds to one of the liquid-cooled wires.

[0021] This utility model also proposes a charging gun, which includes a gun head and the liquid-cooled connecting component described above, wherein the liquid-cooled connecting component is connected to the gun head.

[0022] The technical solution of this utility model connects the plug-in terminal and the connecting terminal via a liquid-cooled wire, utilizing the liquid-cooled wire to achieve electrical transmission. The plug-in terminal is used to connect to an external electrical connection device. During electrical transmission between the plug-in terminal and the electrical connection device, a large amount of heat is generated, reducing the electrical transmission efficiency. Therefore, the plug-in terminal, the connecting wire, and the connecting terminal form a cooling channel, within which a cooling medium flows. The cooling medium effectively reduces the operating temperature of the plug-in terminal, the connecting wire, and the connecting terminal, ensuring electrical transmission efficiency. Specifically, the plug-in terminal has a first cavity, the connecting terminal has a second cavity, and the liquid-cooled wire has a cooling channel. One end of the cooling channel is connected to the first cavity through a first liquid outlet, and the other end of the cooling channel is connected to the second cavity through a second liquid inlet. The cooling medium flows into the first cavity through the first liquid inlet connected to the first cavity, flows to the cooling channel through the first liquid outlet, then flows into the second cavity through the second liquid inlet from the cooling channel, and finally flows out through the second liquid outlet, forming a complete cooling channel. The cooling medium does not pass through a heat source before flowing into the cooling channel through the first inlet, thus maintaining a low temperature before flowing into the cooling channel, thereby effectively cooling the plug-in terminals, liquid-cooled wires and connecting terminals. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0024] Figure 1 A schematic diagram of the charging gun in one embodiment of this utility model;

[0025] Figure 2 An exploded view of the liquid-cooled connecting component in one embodiment of this utility model;

[0026] Figure 3 A schematic diagram of the structure of the plug-in terminal in one embodiment of this utility model;

[0027] Figure 4 This is a cross-sectional structural diagram of the plug-in terminal in one embodiment of the present invention.

[0028] Explanation of icon numbers:

[0029] 100. Liquid-cooled connecting component; 1. Plug-in terminal; 11. First cavity; 12. First liquid inlet; 13. First liquid outlet; 14. Plug-in part; 141. Connecting platform; 142. Connecting block; 15. Connecting part; 151. Connecting body; 1511. First through hole; 1512. Hole; 1513. Connecting post; 1514. Threaded hole; 1515. First connecting pipe; 152. Liquid inlet connector; 1521. Connecting boss; 1522. First section; 1523. Second section; 16. Sealing ring; 2. Connecting terminal; 21. Second liquid inlet; 22. Second liquid outlet; 23. Body part; 231. Second through hole; 232. Second connecting pipe; 24. Liquid outlet connector; 3. Liquid-cooled wire; 31. Insulating sleeve; 32. Wire core; 200. Charging gun;

[0030] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0032] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0033] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0034] Please refer to the reference. Figures 1 to 4 As shown, this utility model proposes a liquid-cooled connecting component 100, which includes a plug-in terminal 1, a connecting terminal 2, and a liquid-cooled wire 3. The plug-in terminal 1 is provided with a first cavity 11 and a first liquid inlet 12 and a first liquid outlet 13 communicating with the first cavity 11. The connecting terminal 2 is provided with a second cavity and a second liquid inlet 21 and a second liquid outlet 22 communicating with the second cavity. The liquid-cooled wire 3 is provided with a cooling channel, and the two ends of the liquid-cooled wire 3 are respectively connected to the plug-in terminal 1 and the connecting terminal 2, so that the two ends of the cooling channel are respectively connected to the first liquid outlet 13 and the second liquid inlet 21 to form a cooling flow channel. The first liquid inlet 12 is used to allow the cooling medium in the cooling flow channel to flow in, and the second liquid outlet 22 is used to allow the cooling medium in the cooling flow channel to flow out.

[0035] In this embodiment, the plug terminal 1 and the connecting terminal 2 are connected by a liquid-cooled wire 3, which enables electrical transmission. The plug terminal 1 is used to connect to an external electrical connection device. During electrical transmission between the plug terminal 1 and the electrical connection device, a large amount of heat is generated, reducing the electrical transmission efficiency. Therefore, the plug terminal 1, the connecting wire, and the connecting terminal 2 form a cooling channel, in which a cooling medium flows. The cooling medium can effectively reduce the operating temperature of the plug terminal 1, the connecting wire, and the connecting terminal 2, ensuring electrical transmission efficiency. The connector 1 has a first cavity 11, the connector 2 has a second cavity, and the liquid-cooled wire 3 has a cooling channel. One end of the cooling channel is connected to the first cavity 11 through a first outlet 13, and the other end is connected to the second cavity through a second inlet 21. The cooling medium flows into the first cavity 11 through the first inlet 12, flows to the cooling channel through the first outlet 13, then flows into the second cavity through the second inlet 21, and finally flows out through the second outlet 22, forming a complete cooling channel. The cooling medium does not pass through a heat source before flowing into the cooling channel through the first inlet 12, thus maintaining a low temperature before flowing into the cooling channel, thereby effectively cooling the connector 1, the liquid-cooled wire 3, and the connector 2. Figure 4 The middle arrow indicates the flow direction of the cooling medium.

[0036] Understandably, the first inlet 12 and the second outlet 22 can be connected to the outlet and inlet of the circulating pump respectively through the cooling medium transmission pipe. The circulating pump continuously pumps the cooling medium to ensure that the cooling medium flows within the cooling channel for continuous heat dissipation. Optionally, the electrical connection device connected to the plug-in terminal 1 can be a charging socket or charging gun, etc. The cooling medium can be an insulating coolant.

[0037] In embodiments of this utility model, such as Figures 2 to 4 As shown, the plug-in terminal 1 includes a plug-in part 14 and a connecting part 15. The plug-in part 14 is provided with a plug-in end. The connecting part 15 is detachably connected to the end of the plug-in part 14 away from the plug-in end and surrounds the plug-in part 14 to form a first cavity 11. The connecting part 15 is provided with a first liquid inlet 12 and a first liquid outlet 13.

[0038] In this embodiment, one end of the plug-in portion 14 is provided with a plug-in end that mates with an external electrical connector. This plug-in end is frequently plugged and unplugged with the electrical connector during use, making it prone to wear. The other end of the plug-in portion 14 is detachably connected to the connecting portion 15. This allows the plug-in portion 14 to be replaced directly when the plug-in end is damaged, without needing to replace the entire plug-in terminal 1, thus reducing replacement costs. Furthermore, both the first liquid inlet 12 and the first liquid outlet 13 are located on the connecting portion 15. Therefore, replacing the plug-in portion 14 will not significantly affect the cooling channel configuration, eliminating the need to reconfigure the cooling channel and reducing replacement steps, thereby improving replacement efficiency.

[0039] Optionally, the plug-in end can be a pin structure or a socket structure. Optionally, the plug-in part 14 and the connecting part 15 can be detachably connected by a structure such as screws or clips.

[0040] In embodiments of this utility model, such as Figures 2 to 4 As shown, the connecting part 15 includes a connecting body 151 and a liquid inlet connector 152. The connecting body 151 is provided with a slot 1512. The plug-in part 14 is connected to the connecting body 151 and covers the opening of the slot 1512 to form a first cavity 11. The end of the connecting body 151 away from the plug-in part 14 is provided with a first connecting pipe 1515. The first connecting pipe 1515 is provided with a first liquid outlet 13. The periphery of the connecting body 151 is provided with a first through hole 1511 communicating with the slot 1512. The liquid inlet connector 152 is connected to the connecting body 151 and communicates with the first cavity 11 through the first through hole 1511. The liquid inlet connector 152 is provided with a first liquid inlet 12.

[0041] In this embodiment, the connecting body 151 is provided with a slot 1512. When the plug part 14 is connected to the connecting part 15, the plug part 14 covers the opening of the slot 1512 to form a first cavity 11. When the cooling medium enters through the first liquid inlet 12, it can directly cool the plug part 14 and the connecting part 15, reducing the temperature at the connection point between the plug part 14 and the external connector, and at the connection point between the plug terminal 1 and the liquid-cooled wire 3. The liquid-cooled wire 3 is connected to the connecting body 151 through the first connecting pipe 1515, and the cooling channel communicates with the first cavity 11 through the first liquid outlet 13 of the first connecting pipe 1515. The first connecting pipe 1515 reduces the difficulty of connecting the liquid-cooled wire 3 and facilitates the stable connection of the liquid-cooled wire 3 to the connecting body 151. The liquid inlet connector 152 is connected to the first through hole 1511 of the connecting body 151. The liquid inlet connector 152 communicates with the first cavity 11 through the first through hole 1511. The end of the liquid inlet connector 152 away from the first through hole 1511 is provided with a first liquid inlet 12. The cooling medium transmission pipe can be connected to the liquid inlet connector 152 and communicate with the cooling flow channel through the first liquid inlet 12. The first through hole 1511 is set on the periphery of the connecting body 151 so that the axis of the first through hole 1511 is set at an angle to the axis of the first liquid outlet 13. During the process of the cooling medium entering the first cavity 11 from the first through hole 1511 and flowing out of the first cavity 11 from the first liquid outlet 13, it can fully flow through the first cavity 11 and fully dissipate heat to the plug-in terminal 1.

[0042] Optionally, the connecting body 151 and the first connecting pipe 1515 are integrally formed. In actual implementation, the external cooling medium is transmitted to the liquid inlet connector 152 through the transmission pipe. The cooling medium transmission pipe can be sleeved on the liquid inlet connector 152 and fixed by a clamp.

[0043] In embodiments of this utility model, such as Figures 2 to 4 As shown, the connecting part 15 also includes a locking member. The connecting body 151 is provided with a connecting post 1513, which is located adjacent to the first through hole 1511. The connecting post 1513 is provided with a threaded hole 1514. One end of the liquid inlet connector 152 is provided with a connecting boss 1521, which is provided with a connecting hole. The locking member passes through the connecting hole and is threadedly engaged with the threaded hole 1514.

[0044] In this embodiment, the liquid inlet connector 152 is detachably connected to the connecting body 151 via a locking member, which facilitates future maintenance or replacement of the liquid inlet connector 152 or the connecting body 151. A connecting post 1513 protrudes from the outside of the connecting body 151, and the connecting post 1513 has a threaded hole 1514 to avoid directly opening the threaded hole 1514 on the periphery of the connecting body 151, which would affect the cavity wall thickness of the first cavity 11 and prevent a reduction in the strength of the connecting body 151. A connecting boss 1521 protrudes outward from one end of the liquid inlet connector 152 that communicates with the first through hole 1511. The position of the connecting boss 1521 corresponds to the position of the connecting post 1513. During connection, the connecting boss 1521 abuts against the connecting post 1513, and one end of the locking member passes through the connecting hole of the connecting boss 1521 and connects to the threaded hole 1514.

[0045] In actual implementation, multiple sets of connecting posts 1513 and connecting holes can be correspondingly provided. Correspondingly, multiple locking components are also included, with each locking component, connecting hole, and connecting post 1513 arranged in a one-to-one correspondence. This ensures the uniformity of force on the liquid inlet connector 152, improves the connection strength between the liquid inlet connector 152 and the connecting body 151, and prevents leakage between the liquid inlet connector 152 and the connecting body 151. Optionally, the locking component can be a screw or bolt, etc.

[0046] Optionally, a sealing ring is provided between the connecting body 151 and the liquid inlet connector 152, and the sealing ring surrounds the first through hole 1511. This effectively ensures the sealing performance between the liquid inlet connector 152 and the connecting body 151. Optionally, a limiting groove is provided around the first through hole 1511, and the sealing ring is limited to the sealing groove to prevent the sealing ring from moving and affecting the sealing performance.

[0047] In embodiments of this utility model, such as Figures 2 to 4 As shown, the liquid inlet connector 152 includes a first section 1522 and a second section 1523 connected at an angle. The first section 1522 is connected to the connecting body 151. The second section 1523 has a first liquid inlet 12 at one end away from the first section 1522. The extension direction of the second section 1523 is parallel to the extension direction of the connecting body 151.

[0048] In this embodiment, the first end is connected to the connecting body 151 and communicates with the first cavity 11 through the first through hole 1511. The end of the second segment 1523 away from the first segment 1522 is used to connect to the transmission pipe of the cooling medium. The extension direction of the second segment 1523 is parallel to the extension direction of the connecting body 151. In this way, the transmission pipe and the liquid cooling wire 3 can be arranged in parallel, which is beneficial to the spatial layout of the transmission pipe and the liquid cooling wire 3 and saves the installation space of the transmission pipe and the liquid cooling wire 3.

[0049] In embodiments of this utility model, such as Figures 2 to 4 As shown, the plug-in part 14 includes a connecting platform 141 and a connecting block 142. The connecting block 142 and the plug-in end are respectively connected to the two sides of the connecting platform 141. The connecting platform 141 covers the opening of the slot 1512 and is connected to the connecting body 151. The connecting block 142 is located in the first cavity 11 and is connected to the liquid cooling wire 3.

[0050] In this embodiment, the connecting platform 141 has a plug-in end on one side and a connecting block 142 on the other side. When the plug-in part 14 is connected to the connecting body 151, the connecting platform 141 covers the opening of the slot 1512 to seal the slot 1512 and form a first cavity 11. At the same time, the connecting block 142 extends into the first cavity 11, which facilitates the connection of the liquid-cooled wire 3 and realizes the electrical connection between the liquid-cooled wire 3 and the plug-in terminal 1.

[0051] Optionally, the connecting body 151 is provided with a connecting ring platform surrounding the opening of the slot 1512. When the connecting platform 141 covers the opening of the slot 1512, the connecting platform 141 abuts against the connecting ring platform, so that the connecting body 151 and the insertion part 14 have sufficient connection area, which is beneficial to the stability of the connection between the connecting body 151 and the insertion part 14. A sealing ring 16 is provided between the connecting platform 141 and the connecting ring platform, and the sealing ring 16 is arranged around the opening of the slot 1512 to ensure the sealing between the connecting platform 141 and the connecting ring platform. The connecting platform 141 and the connecting ring platform can be detachably connected by a structure such as a snap or screw. The connecting platform 141 and the connecting ring platform can also be provided with positioning holes and positioning protrusions to facilitate the positioning and installation of the connecting platform 141 and the connecting ring platform, thereby improving the reliability of the connection between the insertion part 14 and the connecting body 151.

[0052] In embodiments of this utility model, such as Figure 2 As shown, the connecting terminal 2 includes a main body 23 and a liquid outlet connector 24. The main body 23 is provided with a second cavity. One end of the main body 23 is provided with a second connecting pipe 232. The second connecting pipe 232 is provided with a second liquid inlet 21. The periphery of the main body 23 is provided with a second through hole 231. The liquid outlet connector 24 is connected to the main body 23 and communicates with the second cavity through the second through hole 231. The liquid outlet connector 24 is provided with a second liquid inlet 21.

[0053] In this embodiment, when the cooling medium enters through the second inlet 21, it can directly cool the connection between the liquid-cooled wire 3 and the main body 23, preventing overheating at the connection and affecting the electrical transmission efficiency of the liquid-cooled wire 3 and the main body 23. The liquid-cooled wire 3 is connected to the main body 23 through the second connecting pipe 232, and the cooling channel is connected to the second cavity through the second inlet 21 of the second connecting pipe 232. The second connecting pipe 232 reduces the difficulty of connecting the liquid-cooled wire 3 and facilitates a stable connection of the liquid-cooled wire 3 to the main body 23. The outlet connector 24 is connected to the second through hole 231 of the connecting body 151. The outlet connector 24 is connected to the second cavity through the second through hole 231. The end of the inlet connector 152 away from the second through hole 231 is provided with a second outlet 22. The transmission pipe of the cooling medium can be connected to the outlet connector 24 and connected to the cooling channel through the second outlet 22. The second through hole 231 is provided on the periphery of the connecting body 151 so that the axis of the second through hole 231 is set at an angle to the axis of the second liquid inlet 21. During the process of the cooling medium flowing into the second cavity from the second liquid inlet 21 and then flowing out of the second cavity from the second through hole 231, it can fully flow through the second cavity and fully dissipate heat from the connecting terminal 2.

[0054] In actual implementation, the external cooling medium flows out to the transmission pipe through the outlet connector 24. The transmission pipe of the cooling medium can be sleeved on the outlet connector 24 and fixed by a clamp. Optionally, a copper busbar is provided at the end of the main body 23 opposite to the second connecting pipe 232. The copper busbar has a connection hole for connecting to the power cable.

[0055] In embodiments of this utility model, such as Figure 2 As shown, the liquid-cooled conductor 3 includes an insulating sleeve 31 and a conductor 32. The conductor 32 passes through the insulating sleeve 31, and a cooling channel is provided between the conductor 32 and the insulating sleeve 31. The two ends of the insulating sleeve 31 are respectively fitted onto the first connecting pipe 1515 and the second connecting pipe 232. One end of the conductor 32 extends into the first cavity 11 through the first connecting pipe 1515 and is connected to the connecting block 142. The other end of the conductor 32 extends into the second cavity through the second connecting pipe 232 and is connected to the main body 23.

[0056] In this embodiment, the insulating sleeves 31 of the liquid-cooled wire 3 are respectively fitted onto the first connecting pipe 1515 and the second connecting pipe 232, and are both tightened and fixed by clamps to prevent leakage at the connection of the insulating sleeves 31. The two ends of the wire core 32 extend into the first cavity 11 and the second cavity through the first liquid outlet 13 and the second liquid inlet 21, respectively, to abut against the connecting block 142 and the main body 23, so that the plug terminal 1 is electrically connected to the connecting terminal 2 through the liquid-cooled wire 3.

[0057] In actual implementation, an abutment block can be provided at one end of the wire core 32 connected to the connecting block 142. The abutment block can be connected by welding or screw connection. The main body 23 is also provided with a crimping hole, which is part of the second cavity. The other end of the wire core 32 passes through the second cavity and the crimping hole at the same time. The wire core 32 is pressed through the crimping hole to realize the connection between the wire core 32 and the main body 23.

[0058] In embodiments of this utility model, such as Figure 2 As shown, the liquid cooling wire 3 includes multiple wires, and the plug-in terminal 1 is provided with multiple first liquid outlets 13, with each first liquid outlet 13 corresponding to a liquid cooling wire 3.

[0059] In this embodiment, the liquid-cooled wire 3 comprises multiple wires to increase the number of connecting conductors between the plug terminal 1 and the connecting terminal 2, thereby increasing the cross-sectional area of ​​the connecting conductors and improving the stability of electrical transmission. Furthermore, it increases the number of cooling channels and the contact area between the cooling channels and the wire core 32, further enhancing the heat dissipation effect of the cooling medium on the plug terminal 1, liquid-cooled wire 3, and connecting terminal 2, and improving the stability of electrical transmission between the plug terminal 1, liquid-cooled wire 3, and connecting terminal 2. Moreover, when one of the multiple liquid-cooled wires 3 fails, the plug terminal 1 can still transmit electricity to the connecting terminal 2 through the other liquid-cooled wires 3, improving the reliability of electrical transmission in the connecting components.

[0060] Optionally, the liquid cooling wires 3 and the connecting terminals 2 can be configured one-to-one to ensure the flow rate of the cooling medium in the cooling channel. Specifically, one plug-in terminal 1 can connect two liquid cooling wires 3, each cooling wire is connected to one connecting terminal 2, and the two connecting terminals 2 corresponding to the same plug-in terminal 1 are connected to the same power cable.

[0061] This utility model also proposes a charging gun 200, which includes a gun head and a liquid-cooled connecting component 100. The specific structure of the liquid-cooled connecting component 100 is as described in the above embodiments. Since this charging gun 200 adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0062] In this embodiment, the gun head includes an inner shell, an outer shell, and a support frame. The inner shell has a through cavity and a partition plate. The partition plate divides the through cavity into a first cavity and a second cavity. The partition plate has a third through hole connecting the first cavity and the second cavity. The plug-in terminal 1 is disposed on the support frame. The support frame is connected to the inner shell and located in the second cavity. The plug-in terminal 1 extends to the first cavity through the third through hole. The first cavity is used for inserting the charging socket. A sealing ring is provided between the plug-in terminal 1 and the hole wall of the third through hole. The outer shell is fitted onto the inner shell, and a sealing ring is also provided between the outer shell and the inner shell.

[0063] Optionally, the support frame is detachably connected to the inner shell by means of screws or clips, and the support frame is provided with two sets of liquid-cooled connecting components 100, which correspond to two power terminals respectively. The outer shell can also be detachably connected to the inner shell by means of screws or clips, so as to facilitate the later maintenance and replacement of parts of the charging gun.

[0064] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A liquid-cooled connecting component, characterized in that, The liquid-cooled connection component includes: A plug-in terminal, wherein the plug-in terminal is provided with a first cavity and a first liquid inlet and a first liquid outlet communicating with the first cavity; The connecting terminal is provided with a second cavity and a second liquid inlet and a second liquid outlet communicating with the second cavity; and The liquid-cooled wire has a cooling channel, and its two ends are respectively connected to the plug-in terminal and the connection terminal, so that the two ends of the cooling channel are respectively connected to the first liquid outlet and the second liquid inlet to form a cooling flow channel; wherein, the first liquid inlet is used for the cooling medium in the cooling flow channel to flow in, and the second liquid outlet is used for the cooling medium in the cooling flow channel to flow out.

2. The liquid-cooled connecting component as described in claim 1, characterized in that, The plug-in terminal includes a plug-in part and a connecting part. The plug-in part is provided with a plug end. The connecting part is detachably connected to the end of the plug-in part away from the plug end and surrounds the plug-in part to form the first cavity. The connecting part is provided with a first liquid inlet and a first liquid outlet.

3. The liquid-cooled connecting component as described in claim 2, characterized in that, The connecting part includes: The connecting body has a slot, the plug-in part is connected to the connecting body and covers the opening of the slot to form the first cavity, and the end of the connecting body away from the plug-in part is provided with a first connecting tube, and the first connecting tube is provided with a first liquid outlet. The liquid inlet connector has a first through hole on the periphery of the connecting body that communicates with the empty groove. The liquid inlet connector is connected to the connecting body and communicates with the first cavity through the first through hole. The liquid inlet connector has a first liquid inlet.

4. The liquid-cooled connecting component as described in claim 3, characterized in that, The connecting part further includes a locking member, the connecting body is provided with a connecting post, the connecting post is disposed adjacent to the first through hole, and the connecting post is provided with a threaded hole; One end of the liquid inlet connector is provided with a connecting boss, the connecting boss is provided with a connecting hole, the locking member passes through the connecting hole and is threadedly engaged with the threaded hole; And / or, a sealing ring is provided between the connecting body and the liquid inlet connector, and the sealing ring is arranged around the first through hole.

5. The liquid-cooled connecting component as described in claim 3, characterized in that, The liquid inlet connector includes a first section and a second section connected at an angle. The first section is connected to the connecting body, and the second section has the first liquid inlet at the end away from the first section. The extension direction of the second section is parallel to the extension direction of the connecting body.

6. The liquid-cooled connecting component as described in claim 3, characterized in that, The plug-in portion includes a connecting platform and a connecting block. The connecting block and the plug-in end are respectively connected to both sides of the connecting platform. The connecting platform covers the opening of the slot and is connected to the connecting body. The connecting block is located in the first cavity and is connected to the liquid cooling wire.

7. The liquid-cooled connecting component as described in claim 6, characterized in that, The connection terminal includes a main body and a liquid outlet connector. The main body is provided with a second cavity. One end of the main body is provided with a second connecting pipe. The second connecting pipe is provided with a second liquid inlet. The periphery of the main body is provided with a second through hole. The liquid outlet connector is connected to the main body and communicates with the second cavity through the second through hole. The liquid outlet connector is provided with a second liquid inlet.

8. The liquid-cooled connecting component as described in claim 7, characterized in that, The liquid-cooled conductor includes an insulating sleeve and a conductor core. The conductor core is inserted inside the insulating sleeve, and a cooling channel is provided between the conductor core and the insulating sleeve. The two ends of the insulating sleeve are respectively fitted onto the first connecting tube and the second connecting tube. One end of the conductor core extends into the first cavity through the first connecting tube and is connected to the connecting block. The other end of the conductor core extends into the second cavity through the second connecting tube and is connected to the main body.

9. The liquid-cooled connecting member as described in any one of claims 1 to 8, characterized in that, The liquid-cooled wires include multiple wires, and the plug-in terminal is provided with multiple first liquid outlets, each of which corresponds to one of the liquid-cooled wires.

10. A charging gun, characterized in that, The charging gun includes a gun head and a liquid-cooled connection member as claimed in any one of claims 1 to 9, the liquid-cooled connection member being connected to the gun head.

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