Terminal structure of charging gun assembled liquid cooling pipe

Abstract

The utility model discloses a terminal structure of a charging gun assembled liquid cooling pipe, which comprises a connecting terminal, a plug end and a joint end, the connecting terminal is transversely arranged, and the plug end and the joint end are respectively arranged at the left end and the right end of the connecting terminal in the axial direction; the liquid cooling device further comprises a liquid cooling pipe and a positioning piece, the liquid cooling pipe is inserted into the connecting terminal from the connector end, the positioning piece is arranged at the outer ring face inserting end of the liquid cooling pipe in a sleeving mode, and the positioning piece is used for fixing the liquid cooling pipe to a power terminal. According to the utility model, the positioning member is arranged at the joint of the left end of the outer ring surface of the liquid cooling pipe, so that the liquid cooling pipe can be fixed on the power supply terminal; connection is stable and not easy to fall off, and the power supply terminal and the liquid cooling pipe are convenient to assemble. The series connection end of the power supply terminal is filled with cooling liquid, the positioning piece is pressed to prevent leakage, cooling is achieved, and the service life is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of charging terminal technology, and mainly to a terminal structure for assembling a liquid cooling tube in a charging gun. Background Technology

[0002] Liquid-cooled charging guns typically use a cooling tube that extends from the conductor in the liquid-cooled cable. The conductor and terminal are crimped together, cooling the cable section and preventing accelerated aging caused by prolonged exposure to high temperatures, thus extending its lifespan. Currently, liquid-cooled charging guns use clamps to connect the power terminal and the liquid-cooling tube, securing them together. However, using clamps limits internal assembly space and makes operation inconvenient; uneven clamp contraction can also cause the liquid-cooling tube to detach from the terminal. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a terminal structure for assembling a liquid cooling tube in a charging gun. The technical problem it aims to solve is that the positioning component fixes the liquid cooling tube to the power terminal, ensuring a stable connection that is not easily detached; coolant is introduced into the three-way connection of the power terminal without leakage.

[0004] The technical problem to be solved by this utility model can be achieved by the following technical solution:

[0005] A terminal structure for assembling a liquid cooling tube in a charging gun includes a connecting terminal, a plug end, and a connector end. The connecting terminal is arranged laterally, and the plug end and connector end are respectively located at the left and right ends of the connecting terminal in the axial direction. The characteristic of this structure is that...

[0006] It also includes a liquid cooling tube and a positioning component. The liquid cooling tube is inserted into the interior of the connecting terminal from the connector end, and the positioning component is sleeved on the outer ring surface of the liquid cooling tube at the insertion end. The positioning component is used to fix the liquid cooling tube to the power terminal.

[0007] In a preferred embodiment of the present invention, a T-connector is vertically arranged in the middle of the outer ring surface of the connecting terminal, a power terminal is inserted inside the connecting terminal, and a series connector is arranged in the middle of the outer ring surface of the power terminal at the T-connector; the left end of the liquid cooling pipe is sleeved on the right end of the outer ring surface of the power terminal.

[0008] In a preferred embodiment of this utility model, the positioning element is a retaining ring, and a plurality of spring plates are arranged obliquely in a circumferential array on the left end face of the retaining ring, and the plurality of spring plates are inclined at 15-45 degrees toward the axial direction of the retaining ring.

[0009] In a preferred embodiment of this utility model, the angle at which the plurality of reeds are inclined toward the axis of the retaining ring is 30 degrees.

[0010] In a preferred embodiment of the present invention, the outer ring surface of the connecting terminal is provided with an external thread on the right end, and a nut is threadedly connected to the external thread of the connecting terminal, the nut being used to provide a fastening effect for the snap ring.

[0011] In a preferred embodiment of this utility model, a sealing ring is fitted on the outer circumferential surface of the liquid cooling pipe and at the left end of the retaining ring, and the sealing ring and the retaining ring are both located radially inside the nut.

[0012] In a preferred embodiment of the present invention, an annular step is provided at the right end of the outer ring surface of the power terminal, and the left end of the liquid cooling tube is sleeved on the annular step of the power terminal.

[0013] In a preferred embodiment of this utility model, a sealing ring groove and a retaining ring groove are sequentially provided on the annular step of the power terminal, and the positions of the sealing ring groove and the retaining ring groove correspond to the positions of the sealing ring and the retaining ring, respectively.

[0014] In a preferred embodiment of this utility model, a snap-fit ​​protrusion is radially provided on the left side of the outer annular surface of the connecting terminal, and the connecting terminal is connected to the charging gun body through the snap-fit ​​protrusion.

[0015] Compared with the prior art, the advantages of this utility model are: a terminal structure for assembling a liquid cooling tube in a charging gun, wherein a positioning element is provided at the connection point on the left end of the outer ring surface of the liquid cooling tube, so as to fix the liquid cooling tube on the power terminal; the connection is stable and not easy to fall off, and the assembly between the power terminal and the liquid cooling tube is convenient.

[0016] Coolant is introduced into the connection of the tee connector of the power terminal, and the positioning part is pressed to prevent leakage; at least two power terminals connected in series are cooled to prevent them from being exposed to high temperature for a long time, which will accelerate aging and improve service life.

[0017] The positioning component uses a snap ring. The snap ring's leaf is inclined towards the snap ring's axis, which can decompose the radial force and clamp the liquid cooling tube onto the outer ring surface of the power terminal. The snap ring is also easy to assemble and disassemble. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the terminal structure of a charging gun assembly liquid cooling tube according to the present invention.

[0019] Figure 2 This is a front view of the terminal structure of a charging gun assembly liquid cooling tube according to the present invention.

[0020] Figure 3 This is the utility model Figure 2 Sectional view of AA.

[0021] Figure label:

[0022] 10 Connection terminals: 11 Plug end, 12 T-connector; 13 Connector end, 14 External thread; 15 Snap-fit ​​ring.

[0023] 20 Power terminal; 30 Liquid cooling pipe; 41 Snap ring; 42 Spring leaf; 43 Sealing ring; 44 Nut. Detailed Implementation

[0024] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the following description, in conjunction with specific illustrations, further elaborates on this utility model.

[0025] See Figures 1 to 3 The figure shows a terminal structure for assembling a liquid cooling tube 30 in a charging gun, including a connecting terminal 10, a plug end 11, and a connector end 13. The connecting terminal 10 is arranged horizontally, with the plug end 11 and connector end 13 located at the left and right ends of the connecting terminal 10 in the axial direction, respectively. It also includes a liquid cooling tube 30 and a positioning element. The liquid cooling tube 30 is inserted into the connecting terminal 10 through the connector end 13, and the positioning element is fitted onto the insertion end of the outer ring surface of the liquid cooling tube 30. The positioning element is used to fix the liquid cooling tube 30 onto the power terminal 20. Specifically, the connecting terminal 10 is cylindrical.

[0026] In this preferred embodiment, a three-way connector 12 is vertically arranged in the middle of the outer ring surface of the connecting terminal 10, and a power terminal 20 is inserted inside the connecting terminal 10. A series connector is arranged in the middle of the outer ring surface of the power terminal 20 at the three-way connector 12. The left end of the liquid cooling pipe 30 is sleeved on the right end of the outer ring surface of the power terminal 20.

[0027] This invention features a positioning element at the left end of the connection point on the outer circumference of the liquid cooling pipe 30, which secures the liquid cooling pipe 30 to the power terminal 20. The connection is stable and not easily detached, and assembly between the power terminal 20 and the liquid cooling pipe 30 is convenient. Coolant flows through the connection point of the tee connector 12 of the power terminal 20 without leakage; at least two power terminals 20 connected in series are cooled, preventing accelerated aging due to prolonged exposure to high temperatures and extending service life.

[0028] In this preferred embodiment, the positioning element is a retaining ring 41. Several spring pieces 42 are arranged obliquely in a circumferential array on the left end face of the retaining ring 41, and the spring pieces 42 are inclined at 15-45 degrees toward the axis of the retaining ring 41.

[0029] Furthermore, the angle at which several reeds 42 are tilted toward the axis of the retaining ring 41 is 30 degrees.

[0030] The above positioning component uses a snap ring 41. The spring plate 42 of the snap ring 41 is inclined towards the axis of the snap ring 41, which can decompose the radial component force and clamp the liquid cooling tube 30 onto the outer ring surface of the power terminal 20. The snap ring 41 is also easy to assemble and disassemble.

[0031] In this preferred embodiment, an external thread 14 is provided on the right end of the outer ring surface of the connecting terminal 10, and a nut 44 is threadedly connected to the external thread 14 of the connecting terminal 10. The nut 44 is used to provide a fastening effect for the snap ring 41.

[0032] Furthermore, a sealing ring 43 is fitted on the outer ring surface of the liquid cooling pipe 30 and the left end of the retaining ring 41. The sealing ring 43 and the retaining ring 41 are both located on the radial inner side of the nut 44.

[0033] The liquid cooling tube 30 passes through the sealing ring 43 and is inserted into the terminal, providing excellent sealing performance. After the liquid cooling tube 30 is inserted into the tail end of the power terminal 20, the sealing performance is good and it is not easy to fall off. The positions of the sealing ring 43 and the retaining ring 41 correspond to the positions of the nut 44. Tightening the nut 44 can further compress the sealing ring 43 and the retaining ring 41. The entire assembly process is simple to operate, structurally stable, and quick and efficient.

[0034] In this preferred embodiment, an annular step is provided at the right end of the outer ring surface of the power terminal 20, and the left end of the liquid cooling pipe 30 is sleeved on the annular step of the power terminal 20.

[0035] Furthermore, a sealing ring 43 groove and a retaining ring 41 groove are sequentially provided on the annular step of the power terminal 20. The positions of the sealing ring 43 groove and the retaining ring 41 groove correspond to the positions of the sealing ring 43 and the retaining ring 41, respectively, to provide a snap-fit ​​positioning function during connection.

[0036] In this preferred embodiment, a snap-fit ​​protrusion 15 is radially provided on the left side of the outer ring surface of the connecting terminal 10, and the connecting terminal 10 is connected to the charging gun body through the snap-fit ​​protrusion 15; specifically, there are two snap-fit ​​protrusions 15, of which the right snap-fit ​​protrusion 15 is provided with a notch, which matches and connects with the charging gun body.

[0037] The basic working principle of this utility model is as follows:

[0038] First, fit the sealing ring 43 and the retaining ring 41 onto the outer ring surface of the power terminal 20 body, inserting them from right to left until they are fully inserted. Then, fit the nut 44 onto the outer ring surface of the liquid cooling pipe 30 from left to right. Next, pass the liquid cooling pipe 30 through the retaining ring 41 and the sealing ring 43, and then insert it into the outer ring surface of the power terminal 20 body; insert it to the bottom of the annular step, so that the left part of the liquid cooling pipe 30 passes through the sealing ring 43 and the retaining ring 41. Finally, tighten the nut 44 onto the right end external thread 14 of the connecting terminal 10, so that the retaining ring 41 clamps the liquid cooling pipe 30, while preventing the retaining ring 41 from retracting and causing the liquid cooling pipe 30 to retract as well.

[0039] The sealing ring 43 and the snap ring 41 can be first fitted onto the outer ring surface of the power terminal 20, and the nut 44 can be temporarily fitted onto the outer ring surface of the liquid cooling pipe 30; then they can be connected and assembled, which is quicker and more convenient.

[0040] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A terminal structure of a liquid cooling pipe assembled with a charging gun, comprising a connecting terminal, a plug end and a joint end, the connecting terminal is arranged horizontally, and the plug end and the joint end are arranged at the left end and the right end of the connecting terminal in the axial direction respectively; characterized in that, further comprising a liquid cooling pipe and a positioning member, the liquid cooling pipe is inserted into the inside of the connecting terminal through the joint end, and the positioning member is sleeved on the outer ring surface of the insertion end of the liquid cooling pipe, and the positioning member is used for fixing the liquid cooling pipe on the power terminal.

2. A terminal structure of a charging gun assembly liquid cooling pipe according to claim 1, characterized in that, A three-way joint is vertically arranged in the middle of the outer ring surface of the connecting terminal, a power terminal is arranged in the inside of the connecting terminal, a series joint is arranged at the three-way joint in the middle of the outer ring surface of the power terminal, and the left end of the liquid cooling pipe is sleeved on the right end of the outer ring surface of the power terminal.

3. The terminal structure of a liquid cooling pipe assembled with a charging gun according to claim 1, characterized in that, The positioning member is a clamping spring, a plurality of spring leaves are obliquely arranged on the left end surface of the clamping spring in a circumferential array, and the plurality of spring leaves are inclined to the axis of the clamping spring by 15-45 degrees.

4. The terminal structure of a liquid cooling pipe assembled to a charging gun according to claim 3, characterized in that, The angle of the plurality of spring leaves inclined to the axis of the clamping spring is 30 degrees.

5. The terminal structure of a liquid cooling pipe assembled to a charging gun according to claim 3, characterized in that, An external thread is arranged at the right end of the outer ring surface of the connecting terminal, a nut is threadedly connected to the external thread of the connecting terminal, and the nut is used for providing a fastening action to the clamping spring.

6. A terminal structure of a liquid cooling pipe assembled to a charging gun according to claim 5, characterized by, A sealing ring is sleeved on the left end of the clamping spring on the outer ring surface of the liquid cooling pipe, and the positions of the sealing ring and the clamping spring are located on the radial inner side of the nut.

7. The terminal structure of a liquid cooling pipe assembled with a charging gun according to claim 1, characterized in that, An annular step is arranged at the right end of the outer ring surface of the power terminal, and the left end of the liquid cooling pipe is sleeved on the annular step of the power terminal.

8. The terminal structure of a liquid cooling pipe assembled to a charging gun according to claim 6, characterized in that, A sealing ring groove and a clamping spring groove are sequentially arranged on the annular step of the power terminal, and the positions of the sealing ring groove and the clamping spring groove correspond to the positions of the sealing ring and the clamping spring respectively.

9. The terminal structure of a liquid cooling pipe assembled with a charging gun according to claim 1, characterized in that, A clamping convex ring is radially arranged in the left part of the outer ring surface of the connecting terminal, and the connecting terminal is connected with the charging gun body through the clamping convex ring.

Images