CN114824839A

CN114824839A - Liquid cooling terminal and rifle that charges

Info

Publication number: CN114824839A
Application number: CN202210468257.4A
Authority: CN
Inventors: 杜青林; 杨腾; 肖飞; 徐文军; 张强
Original assignee: Shenzhen Woer Heat Shrinkable Material Co Ltd; Shenzhen Woer New Energy Electric Technology Co Ltd
Current assignee: Shenzhen Woer New Energy Electric Technology Co Ltd
Priority date: 2022-04-29
Filing date: 2022-04-29
Publication date: 2022-07-29

Abstract

The invention discloses a liquid cooling terminal and a charging gun, wherein the liquid cooling terminal comprises: a sleeve having a first flow passage formed in an axial direction; the copper bar is arranged at one end of the sleeve; the cable is arranged in the sleeve and is connected with the copper bar; and the adapter is formed with a second flow channel, and the adapter is detachably arranged on the sleeve, so that the first flow channel is communicated with the second flow channel to form a flow channel for cooling liquid to flow. The invention provides a liquid cooling terminal and a charging gun, which solve the technical problem that the existing liquid cooling terminal is complex in structure.

Description

Liquid cooling terminal and rifle that charges

Technical Field

The invention relates to the technical field of electric automobile charging, in particular to a liquid cooling terminal and a charging gun.

Background

With the development of society and the improvement of environmental awareness of people, new energy automobiles are favored by more and more consumers, and the importance of charging accessories related to the new energy automobiles is gradually highlighted. When charging a new energy automobile, the charging terminal of the charging gun or the charging stand and the cable conductor generate heat due to their own resistance. For this reason, liquid-cooled terminals have been developed for dissipating heat from cable conductors. However, the existing liquid cooling terminal is complex in structure and not beneficial to popularization.

Disclosure of Invention

The invention mainly aims to provide a liquid cooling terminal and a charging gun, and aims to solve the technical problem that the existing liquid cooling terminal is complex in structure.

In order to achieve the above object, an embodiment of the present invention provides a liquid-cooling terminal, including:

a sleeve having a first flow passage formed in an axial direction;

the copper bar is arranged at one end of the sleeve;

the cable is arranged in the sleeve and is connected with the copper bar; and

the adapter is formed with the second runner, adapter detachable locates the sleeve makes first runner with the second runner intercommunication is in order to form the liquid flow channel that supplies the coolant liquid to flow.

Optionally, in an embodiment of the present invention, the liquid-cooling terminal further includes a locking portion, the locking portion has a third flow channel, one end of the locking portion movably penetrates through the adapter to be in threaded connection with the sleeve, and the locking portion moves toward a direction close to the sleeve by rotation of the locking portion, so that the other end of the locking portion abuts against a side surface of the adapter departing from the sleeve, so as to fix the sleeve and the adapter, and the first flow channel and the second flow channel are communicated through the third flow channel to form the liquid flow channel; or, the locking part moves towards the direction far away from the sleeve, so that the sleeve is separated from the adapter.

Optionally, in an embodiment of the present invention, the locking portion includes a head portion and a rod portion, the adapter is provided with a mounting hole penetrating through the adapter, the mounting hole is communicated with the second flow passage, the sleeve is provided with a threaded hole communicated with the first flow passage, one end of the rod portion is connected with the head portion, the head portion is used for abutting against a side surface of the adapter departing from the sleeve, the other end of the rod portion penetrates through the mounting hole and is in threaded connection with the threaded hole, and the third flow passage is disposed in the rod portion.

Optionally, in an embodiment of the present invention, the locking portion further includes a sealing ring, and a joint of the head portion and the mounting hole, and/or a joint of the rod portion and the threaded hole is provided with the sealing ring.

Optionally, in an embodiment of the present invention, the liquid-cooled terminal further includes a first liquid-cooled pipe, and the first liquid-cooled pipe is sleeved at the other end of the sleeve.

Optionally, in an embodiment of the present invention, the liquid cooling terminal further includes a fastening member, and the fastening member is sleeved outside the first liquid cooling pipe to lock and fix the first liquid cooling pipe and the sleeve.

Optionally, in an embodiment of the present invention, the other end of the sleeve is provided with a protruding portion, the protruding portion extends in a direction away from an outer wall of the sleeve, and the first liquid-cooled tube and the sleeve are in interference fit through the protruding portion.

Optionally, in an embodiment of the present invention, the liquid cooling terminal further includes a connecting pipe, which is disposed on the adapter and is communicated with the second flow channel; the liquid cooling terminal further comprises a second liquid cooling pipe which is sleeved outside the connecting pipe, and the second liquid cooling pipe, the liquid flow channel and the first liquid cooling pipe are communicated to form a cooling loop.

Optionally, in an embodiment of the present invention, the liquid cooling terminal further includes a nut, the connecting pipe includes a first section and a second section that are adjacent to each other, the first section is connected to the adapter, the first section is provided with an external thread, the second liquid cooling pipe is sleeved outside the second section, and the nut is sleeved on an outer circumferential surface of the second liquid cooling pipe and is in threaded connection with the first section, so as to lock the second liquid cooling pipe on an outer circumferential surface of the second section.

In order to achieve the above object, an embodiment of the present invention provides a charging gun, including the liquid cooling terminal according to any one of the above embodiments.

Compared with the prior art, according to the technical scheme provided by the invention, the electric connection between the cable and the copper bar is realized through the connection between the cable and the copper bar, and the copper bar can be connected with the plug-in terminal or the socket of the power supply component so as to realize the charging of the new energy electric vehicle. In addition, the arrangement of the inner core of the contact pin is omitted, the cable is directly electrically connected with the copper bar, the number of parts used for assembly is reduced, the production cost and the process complexity are reduced, and the overall structure is simpler. In addition, the copper bar sets up in telescopic one end, and the cable also is located the sleeve, when the coolant liquid flows in flow channel, can take away the heat on cable surface, and/or the heat of cable and copper bar junction to the realization is to the cooling of cable and copper bar simultaneously, improves the security of liquid cooling terminal piece when charging. Meanwhile, the connection of the liquid cooling pipe can be facilitated through the arranged adapter, and the liquid cooling pipe is communicated with the liquid flow channel. Moreover, the adapter and the sleeve are detachably connected, so that the adapter and the sleeve can be conveniently assembled, and the production process is further simplified. In addition, when the connector is repaired or replaced, only the damaged sleeve or adapter can be replaced, so that the repair cost is saved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

FIG. 1 is a first schematic structural diagram of a liquid-cooled terminal according to an embodiment of the present invention;

FIG. 2 is a second schematic structural view of a liquid-cooled terminal according to an embodiment of the present invention;

FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2;

fig. 4 is an exploded view of a liquid-cooled terminal according to an embodiment of the present invention.

The reference numbers illustrate:

reference numerals	Name (R)	Reference numerals	Name (R)
				100	Sleeve barrel	110	Projecting part
200	Copper bar	300	Adapter
				400	Locking part	410	Head part
420	Rod part	430	Sealing ring
				500	First liquid cooling pipe	600	Fastening piece
700	Second liquid cooling pipe	800	Connecting pipe
				900	Nut

The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments that can be obtained by a person skilled in the art based on the embodiments of the present invention without any inventive step belong to the scope of the embodiments of the present invention.

It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.

In addition, descriptions such as references to "first", "second", and the like in the embodiments of the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit ly indicating a number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the embodiments of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "connected", "fixed", and the like are to be understood broadly, for example, "fixed" may be a fixed connection, a detachable connection, or an integral body; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. Specific meanings of the above terms in the embodiments of the present invention can be understood by those of ordinary skill in the art according to specific situations.

In addition, the technical solutions in the embodiments of the present invention may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination of the technical solutions should not be considered to exist, and is not within the protection scope of the embodiments of the present invention.

With the development of the automobile industry, new energy automobiles are more and more popular in the market. In order to meet the endurance requirement of the new energy automobile, the new energy automobile is generally required to be charged in time. At present, a charging terminal is generally used for charging a new energy automobile, but the structure of the existing charging terminal is complex, the process is complex during production and assembly, and the improvement of the assembly efficiency is restricted.

In view of this, the embodiment of the present invention provides a liquid cooling terminal and a charging gun, in which a cable is directly connected to a copper bar, so that the arrangement of other unnecessary parts such as an inner core of a contact pin is eliminated, the number of parts used is reduced, the assembly process is simplified, and the overall structure is simpler. In addition, the detachable adapter is arranged on the sleeve, so that the liquid cooling pipe can be conveniently installed on one hand, and the maintenance cost can be saved on the other hand.

In order to better understand the technical scheme, the technical scheme is described in detail below with reference to the accompanying drawings.

As shown in fig. 1 to 4, a liquid-cooling terminal according to an embodiment of the present invention includes:

a sleeve 100 having a first flow passage formed in an axial direction;

a copper bar 200 provided at one end of the sleeve 100;

the cable is arranged in the sleeve 100 and is connected with the copper bar 200; and

the adapter 300 is provided with a second flow passage, and the adapter 300 is detachably arranged on the sleeve 100, so that the first flow passage and the second flow passage are communicated to form a flow passage for flowing cooling liquid.

In the technical scheme adopted by the embodiment, the electric connection between the cable and the copper bar 200 is realized through the connection between the cable and the copper bar 200, and the copper bar 200 can be connected with the plug-in terminal or the socket of the power supply component so as to charge the new energy electric vehicle. In addition, the arrangement of the inner core of the contact pin is omitted, the cable is directly electrically connected with the copper bar 200, the number of parts used for assembly is reduced, the production cost and the process complexity are reduced, and the overall structure is simpler. In addition, copper bar 200 sets up the one end at sleeve 100, and the cable also is located sleeve 100, and when the coolant liquid flowed in the flow channel, can take away the heat on cable surface, and/or the heat of cable and copper bar 200 junction to the realization is to the cooling of cable and copper bar 200 simultaneously, improves the security of liquid cooling terminal piece when charging. Meanwhile, the adapter 300 is arranged, so that the connection of the liquid cooling pipe can be facilitated, and the liquid cooling pipe is communicated with the liquid flow channel. Moreover, the adapter 300 is detachably connected with the sleeve 100, so that the adapter 300 and the sleeve 100 can be conveniently assembled, and the production process is further simplified. In addition, only the damaged sleeve 100 or adapter 300 may be replaced during repair or replacement, thereby saving repair costs.

Specifically, the liquid cooling terminal that provides in this embodiment can be applied to the socket that charges of new forms of energy electric motor car, is connected in order to realize charging with power supply unit's plug terminal or socket. The liquid cooling terminal in this embodiment may include a sleeve 100, a copper bar 200, and an adapter 300.

The sleeve 100 is mainly used for forming a liquid flow channel and accommodating a charging cable, the external shape of the sleeve 100 can be designed according to actual requirements, and the sleeve only needs to be matched with a corresponding socket, and most of the sleeve is cylindrical in practical application. The interior of the sleeve 100 is hollow to form a first flow passage extending in the axial direction of the sleeve 100, i.e., both ends of the sleeve 100 are open. It will be appreciated that the sleeve 100 has first and second opposite ends in the length direction, with the first flow passages extending from the first end toward the second end.

Copper bar 200 can set up the second end at sleeve 100, and the uncovered of shutoff second end, and copper bar 200 can with sleeve 100 integrated into one piece, so can improve the stability that copper bar 200 and sleeve 100 are connected. The copper bar 200 may be made of copper alloy or pure copper, and generally needs to be subjected to surface treatment such as nickel plating and silver plating, so that the conductivity is improved. The side of the copper bar 200 facing the sleeve 100 may be provided with a fixing hole for installing a cable to realize the electrical connection between the cable and the copper bar 200. The fixing hole may be a circular hole or a square hole, which is not limited herein. In practical application, the shape of the cable is matched. The opening direction of fixed orifices is towards the cavity of sleeve 100 (be first runner), and it can be understood that, when connecting cable and copper bar 200, stretch into sleeve 100 with the one end of cable earlier, along with the cable constantly deepening in sleeve 100, the one end of cable stretches into in the fixed orifices, can fix in the fixed orifices through the mode of crimping to electric connection between cable and the copper bar 200 has been realized. Through the mode that the cable is directly connected with copper bar 200, the setting of unnecessary spare part such as contact pin inner core has been cancelled, has reduced the spare part quantity that uses when cable is connected with copper bar 200, has simplified the equipment flow for overall structure is simpler, convenient and practical.

Adapter 300 is mainly used for forming the liquid flow passageway and installing the liquid cooling pipe, sets up the side at sleeve 100, has formed the second runner in adapter 300, and the second runner communicates with first runner to form the liquid flow passageway. The liquid flow channel is filled with the coolant liquid, and the coolant liquid can take away the heat on cable surface when flowing, can also cool off the hookup location of cable and copper bar 200 to realize the regional effective heat dissipation that generates heat, security when the guarantee liquid cooling terminal uses, increase of service life. In general, the cooling liquid in this embodiment may be an insulating liquid with good thermal conductivity, for example, any one of transformer oil, capacitor oil, cable oil, silicone oil or mineral oil may be used. In this embodiment, the adapter 300 may be a hollow structure and has two openings, and preferably, two openings are disposed on two adjacent sides of the adapter 300. One of the openings communicates with the first flow passage of the sleeve 100 and the other opening can be used to connect a liquid cooling tube, thereby conveniently forming a liquid flow passage. Generally, the adapter 300 may be a cylinder or a cube, which is not limited herein. The adapter 300 may be detachably connected to the sleeve 100 by means of a snap connection or a screw connection. Through the detachable connection of adapter 300 and sleeve 100, can carry out the pertinence replacement to the part that needs the maintenance, avoid replacing simultaneously because of other normal use's of integrative setting part to save the maintenance cost. It should be noted that a sealing ring 430 may be disposed at a position where the second flow passage of the adapter 300 communicates with the first flow passage of the sleeve 100, so as to improve the sealing performance of the connection between the adapter 300 and the sleeve 100 and prevent the coolant from leaking.

Further, referring to fig. 1 to 4, in an embodiment of the present invention, the liquid cooling terminal further includes a locking portion 400, the locking portion 400 has a third flow channel, one end of the locking portion 400 movably penetrates through the adapter 300 to be rotatably connected to the sleeve 100, and by rotation of the locking portion 400, the locking portion 400 moves toward a direction close to the sleeve 100, so that the other end of the locking portion 400 abuts against a side surface of the adapter 300 departing from the sleeve 100, so as to fix the sleeve 100 and the adapter 300, and the first flow channel and the second flow channel are communicated through the third flow channel to form a liquid flow channel; alternatively, the locking portion 400 may be moved away from the sleeve 100 to disengage the sleeve 100 and the adapter 300.

In the technical scheme that this embodiment adopted, in order to conveniently realize the dismantled connection of adapter 300 and sleeve 100, set up locking portion 400, adapter 300 is run through to the one end of locking portion 400, and rotates with adapter 300 to be connected. It can be understood that one end of adapter 300 can be with sleeve 100 threaded connection, when needs locking sleeve 100 and adapter 300, rotate locking portion 400 along first direction for locking portion 400 moves towards the direction that is close to sleeve 100, and until the other end of locking portion 400 and adapter 300 deviate from the side butt of sleeve 100, at this moment, adapter 300 presss from both sides tightly between the other end of sleeve 100 and locking portion 400, thereby realizes the fixed connection of adapter 300 and sleeve 100. Meanwhile, the third flow channel on the locking part 400 is used for connecting the first flow channel on the sleeve 100 and the second flow channel on the adapter 300, so that the conduction of the flow channel is realized, and the flowing of the cooling liquid is convenient. When it is necessary to replace or repair the adapter 300 or the sleeve 100, the locking portion 400 is rotated in the second direction, so that the locking portion 400 moves away from the sleeve 100 until the locking portion 400 is separated from the sleeve 100. In this embodiment, the locking portion 400 is screwed to the sleeve 100, so that the locking portion and the sleeve can be easily mounted and dismounted. It should be noted that the first direction may be a clockwise direction, and the second direction is a counterclockwise direction; the first direction may also be counterclockwise, in which case the second direction is clockwise.

Further, referring to fig. 4, in an embodiment of the present invention, the locking portion 400 includes a head portion 410 and a rod portion 420, a mounting hole penetrating through the adapter 300 is formed on the adapter 300, the mounting hole is communicated with the second flow passage, a threaded hole communicated with the first flow passage is formed on the sleeve 100, one end of the rod portion 420 is connected to the head portion 410, the head portion 410 is configured to abut against a side surface of the adapter 300 away from the sleeve 100, the other end of the rod portion 420 penetrates through the mounting hole to be in threaded connection with the threaded hole, and the third flow passage is formed in the rod portion 420.

In the solution adopted in this embodiment, the locking portion 400 may include a head portion 410 and a rod portion 420, and a cross-sectional area of the head portion 410 is larger than a cross-sectional area of the rod portion 420, so that after the rod portion 420 passes through the mounting hole, the head portion 410 is prevented from passing through the mounting hole, and the head portion 410 and the rod portion 420 are located on two sides of the adapter 300. The mounting hole may be formed using a portion of the second flow path, which may simplify the process flow and reduce the complexity of the structure. Of course, in other embodiments, the mounting hole may also be separately provided, and only needs to be communicated with the second flow channel, which is not limited herein. Meanwhile, in order to conveniently realize the threaded connection between the rod part 420 and the sleeve 100, a threaded hole is formed in the sleeve 100, the threaded hole is communicated with the first flow channel, one end, away from the head part 410, of the rod part 420 can be in threaded connection with the threaded hole, so that the rod part 420 can move towards the direction close to or away from the sleeve 100 by rotating the head part 410, and the adapter 300 and the sleeve 100 can be fixed or separated. Preferably, when adapter 300 and sleeve 100 are secured, the end of stem 420 remote from head 410 extends into the first flow passage, thus facilitating the flow of coolant between the first flow passage and the third flow passage. In this embodiment, pole portion 420 can be hollow structure to form uncovered at both ends, head 410 seals the uncovered of pole portion 420 one end, the uncovered and first runner intercommunication of pole portion 420 other end, has set up the play liquid hole that communicates with the hollow portion of pole portion 420 in the outer peripheral face of pole portion 420 simultaneously, goes out liquid hole and second runner intercommunication, so convenient realization the intercommunication of first runner and second runner, formed the liquid flow channel. In one embodiment, the shaft portion 420 and the head portion 410 can be formed by an integral molding process, which can simplify the manufacturing process and improve the overall strength of the locking portion 400.

Further, referring to fig. 4, in an embodiment of the present invention, the locking portion 400 further includes a sealing ring 430, and the joint of the head portion 410 and the mounting hole and/or the joint of the rod portion 420 and the threaded hole is provided with the sealing ring 430.

In the technical scheme adopted by the embodiment, the sealing ring 430 can realize sealing connection, so that the leakage of the cooling liquid is avoided. In general, the sealing ring 430 may be made of a rubber material having elasticity. In this embodiment, the sealing ring 430 may be disposed at a connection point between the head portion 410 and the mounting hole, a connection point between the rod portion 420 and the threaded hole, or both of them, which is not limited herein.

Further, referring to fig. 1 to 4, in an embodiment of the present invention, the liquid-cooled terminal further includes a first liquid-cooled tube 500, and the first liquid-cooled tube 500 is sleeved on the other end of the sleeve 100.

In the technical solution adopted in this embodiment, the first liquid-cooling pipe 500 is mainly used for inputting or outputting the cooling liquid, and may be made of a flexible material with good insulation, for example, a flexible rubber pipe or a flexible plastic pipe. The inner diameter of the first liquid-cooling pipe 500 is greater than or equal to the outer diameter of the sleeve 100, so that the first liquid-cooling pipe 500 can be sleeved on the outer circumferential surface of the sleeve 100. Through the mode that first liquid-cooling pipe 500 and sleeve 100 cup joint, can be simple and convenient the realization first liquid-cooling pipe 500 and sleeve 100 between be connected fixedly.

Further, referring to fig. 1 and 4, in an embodiment of the present invention, the liquid-cooled terminal further includes a fastening member 600, and the fastening member 600 is sleeved outside the first liquid-cooled pipe 500 to lock and fix the first liquid-cooled pipe 500 and the sleeve 100.

In the solution adopted in this embodiment, in order to improve the reliability of fixing the first liquid-cooled tube 500 and the sleeve 100, a fastener 600 is provided. The fastener 600 is sleeved outside the first liquid-cooling pipe 500, and may be a binding wire or a nut, so as to securely fix the first liquid-cooling pipe 500 and the sleeve 100. The fastener 600 may be a steel hoop, and the steel hoop may be sleeved on the outer circumferential surface of the first liquid-cooled tube 500, so as to tightly fix the first liquid-cooled tube 500 on the outer circumferential surface of the sleeve 100, so as to lock and fix the first liquid-cooled tube 500 and the sleeve 100. Through setting up the steel hoop, can realize the close fit between first liquid-cooled pipe 500 and the sleeve 100 to guarantee that the coolant liquid can not reveal. Moreover, the steel hoop has a simple structure, and the assembly process can be further simplified. In actual assembly, the steel hoop can be firstly sleeved on the outer peripheral surface of the first liquid-cooling pipe 500, then the first liquid-cooling pipe 500 is sleeved on the outer peripheral surface of the sleeve 100, and finally the steel hoop is tightly pressed, so that the first liquid-cooling pipe 500 and the sleeve 100 are reliably connected.

Further, referring to fig. 4, in an embodiment of the present invention, the other end of the sleeve 100 is provided with a protrusion 110, the protrusion 110 extends away from the outer wall of the sleeve 100, and the first liquid-cooled tube 500 is in interference fit with the sleeve 100 through the protrusion 110.

In the technical solution adopted in this embodiment, the protrusion 110 is provided to increase the outer diameter of the sleeve 100 at a part of the sleeve, so that the first liquid-cooling pipe 500 can be tightly connected with the sleeve 100, and the first liquid-cooling pipe 500 is prevented from falling off from the outer circumferential surface of the sleeve 100. In the present embodiment, the protrusion 110 may be integrally formed with the sleeve 100, so that the stable connection between the protrusion 110 and the sleeve 100 can be improved. In addition, a plurality of the protrusions 110 may be provided, and a plurality of the protrusions 110 may be staggered on the outer circumferential surface of the sleeve 100, so that the sleeve 100 and the first liquid-cooled tube 500 may be tightly connected at different positions of the sleeve 100. Of course, in other embodiments, the protrusion 110 may also surround the sleeve 100 once, and is not limited herein.

Further, referring to fig. 4, in an embodiment of the present invention, the liquid-cooling terminal further includes a connecting pipe 800 disposed on the adapter 300 and communicated with the second flow channel; the liquid-cooled terminal further includes a second liquid-cooled tube 700 sleeved outside the connection tube 800, and the second liquid-cooled tube 700, the liquid flow passage and the first liquid-cooled tube 500 are communicated to form a cooling loop.

In the technical solution adopted in this embodiment, the first liquid-cooling tube 500 is disposed at one end of the sleeve 100, the second liquid-cooling tube 700 is disposed at the adapter 300, and both the first liquid-cooling tube 500 and the second liquid-cooling tube 700 are communicated with the liquid flow passage. So configured, the first liquid cooling pipe 500, the second liquid cooling pipe 700 and the liquid flow passage together constitute a cooling circuit. When the cooling liquid flows in the cooling circuit, the heat on the surface of the cable can be taken away, and the connecting position of the cable and the copper bar 200 can be cooled, so that the effective heat dissipation of a heating area is realized, the safety of the liquid cooling terminal during use is guaranteed, and the service life is prolonged. In this embodiment, the cooling liquid may flow in from the first liquid-cooling pipe 500 while flowing out from the second liquid-cooling pipe 700; or from the second liquid-cooled tube 700 and out of the first liquid-cooled tube 500. It is understood that the flowing direction of the cooling liquid is not limited in this embodiment, and the flowing direction of the cooling liquid can be set according to the actual product requirement. In order to facilitate the connection between the second liquid cooling pipe 700 and the adapter 300, the connecting pipe 800 is provided, the connecting pipe 800 may be a hollow structure, and meanwhile, the adapter 300 is provided with a connecting hole communicated with the second liquid flow passage, and the connecting pipe 800 is connected with the connecting hole, so that the connection between the connecting pipe 800 and the adapter 300 may be realized. Of course, in other embodiments, the connection tube 800 may be integrally formed with the adapter 300, and is not limited herein.

Further, referring to fig. 1, fig. 3 and fig. 4, in an embodiment of the present invention, the liquid cooling terminal further includes a nut 900, the connecting pipe 800 includes a first section and a second section that are adjacent to each other, the first section is connected to the adapter 300, the first section has an external thread, the second liquid cooling pipe 700 is sleeved outside the second section, and the nut 900 is sleeved on an outer circumferential surface of the second liquid cooling pipe 700 and is in threaded connection with the first section, so as to lock the second liquid cooling pipe 700 on an outer circumferential surface of the second section.

In the technical scheme adopted in this embodiment, through the nut 900 that sets up, can realize the close fit between second liquid cooling pipe 700 and connecting pipe 800 to guarantee that the coolant liquid can not leak. During assembly, the second hydraulic cooling pipe 700 is firstly sleeved on the outer peripheral surface of the second section of the connecting pipe 800, the nut 900 is sleeved on the outer peripheral surface of the second hydraulic cooling pipe 700, the nut 900 is rotated to lock one end of the nut 900 with the thread on the first section of the connecting pipe 800, the other end of the nut 900 extrudes the second hydraulic cooling pipe 700, the second hydraulic cooling pipe 700 is made to cling to the outer peripheral surface of the second end of the connecting pipe 800, and therefore the reliable sealing effect is achieved.

The embodiment of the present invention further provides a charging gun, which includes the above liquid cooling terminal, and specifically, the specific structure of the liquid cooling terminal refers to the above embodiment, and since the charging gun adopts all technical solutions of the above embodiment, the charging gun at least has all beneficial effects brought by the technical solutions of the above embodiment, and details are not repeated herein.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the embodiments of the present invention, and all modifications and equivalents that can be made by using the contents of the description and drawings of the embodiments of the present invention or directly/indirectly applied to other related technical fields are included in the scope of the embodiments of the present invention.

Claims

1. A liquid cooling terminal, comprising:

a sleeve having a first flow passage formed in an axial direction;

the copper bar is arranged at one end of the sleeve;

the cable is arranged in the sleeve and is connected with the copper bar; and

2. The liquid cooling terminal of claim 1, further comprising a locking portion having a third flow passage, wherein one end of the locking portion movably penetrates the adapter to be in threaded connection with the sleeve, and the locking portion moves toward a direction close to the sleeve by rotation of the locking portion, so that the other end of the locking portion abuts against a side surface of the adapter facing away from the sleeve to fix the sleeve and the adapter, and the first flow passage and the second flow passage are communicated through the third flow passage to form the liquid flow passage; or, the locking part moves towards the direction far away from the sleeve, so that the sleeve is separated from the adapter.

3. The liquid cooled terminal of claim 2, wherein the locking portion includes a head portion and a shaft portion, the adapter includes a mounting hole extending therethrough, the mounting hole is in communication with the second channel, the sleeve includes a threaded hole in communication with the first channel, one end of the shaft portion is connected to the head portion, the head portion is adapted to abut against a side of the adapter facing away from the sleeve, the other end of the shaft portion extends through the mounting hole to be in threaded connection with the threaded hole, and the third channel is disposed in the shaft portion.

4. The liquid cooled terminal of claim 3, wherein the locking portion further comprises a sealing ring, and wherein the sealing ring is disposed at a connection of the head portion and the mounting hole, and/or at a connection of the stem portion and the threaded hole.

5. The liquid cooled terminal of any of claims 1-4, further comprising a first liquid cooled tube, wherein the first liquid cooled tube is sleeved over the other end of the sleeve.

6. The liquid cooled terminal of claim 5, further comprising a fastener, wherein the fastener is disposed on an exterior of the first liquid cooled tube to lock the first liquid cooled tube to the sleeve.

7. The liquid cooled terminal of claim 5, wherein the other end of the sleeve has a protrusion extending away from the outer wall of the sleeve, the first liquid cooled tube being in interference fit with the sleeve via the protrusion.

8. The liquid cooled terminal of claim 5, further comprising a connecting tube disposed at the adapter and in communication with the second fluid passage; the liquid cooling terminal further comprises a second liquid cooling pipe which is sleeved outside the connecting pipe, and the second liquid cooling pipe, the liquid flow channel and the first liquid cooling pipe are communicated to form a cooling loop.

9. The liquid cooling terminal of claim 8, further comprising a nut, wherein the connecting tube comprises a first section and a second section that are adjacent to each other, the first section is connected to the adapter, the first section has an external thread, the second liquid cooling tube is sleeved outside the second section, and the nut is sleeved on an outer circumferential surface of the second liquid cooling tube and is in threaded connection with the first section to lock the second liquid cooling tube on an outer circumferential surface of the second section.

10. A charging gun comprising a liquid cooled terminal as claimed in any one of claims 1 to 9.