Cooling terminal and charging gun

Abstract

The utility model belongs to the technical field of charging guns, and particularly relates to a cooling terminal and a charging gun, and the cooling terminal comprises a cable, a charging terminal, a switching cylinder, and an outer tube. A column body is arranged on the charging terminal, and the internal thread and the external thread which are in threaded connection with the adapter sleeve are sleeved on the column body; the outer pipe is connected with the adapter cylinder, and a first inner hole of the adapter cylinder is communicated with a second inner hole of the outer pipe; an extension part extending into the first inner hole is arranged on the column body, and one end of the cable penetrates through the second inner hole and the first inner hole and then is electrically connected with the extension part; the charging terminal is also provided with a first cooling channel communicated with the first inner hole. According to the utility model, the extension part and the cable can be subjected to ultrasonic welding, so that the connection strength between the cable and the charging terminal is ensured, and the accident of separation between the cable and the charging terminal is not easy to occur. In addition, the cooling terminal is simple in structure, low in manufacturing cost and convenient to disassemble and assemble.

Description

Technical Field

[0001] The utility model belongs to the technical field of charging guns, and in particular relates to a cooling terminal and a charging gun. Background Art

[0002] With the development of society and the rise of environmental awareness, new energy vehicles (NEVs) have become increasingly popular among consumers, and the charging equipment associated with them is increasingly present in people's lives. When charging a NEV, the charging terminals and cable conductors of the charging gun or charging cradle generate heat due to their inherent resistance. To ensure charging performance and safety, the charging terminals and cables require cooling.

[0003] Liquid-cooled terminals can cool both the charging terminal and the cable, and are increasingly being used in charging guns and charging docks. However, existing cooling terminals have limited internal space, and the cable and charging terminal are electrically connected via a plug-in structure. This creates technical issues such as an unstable connection and the risk of falling off. Utility Model Content

[0004] The utility model solves the technical problems in the prior art such as unstable connection and easy falling off between the cable and the charging terminal, and provides a cooling terminal and a charging gun.

[0005] In view of the above problems, an embodiment of the present invention provides a cooling terminal, including a cable, a charging terminal, a transfer tube and an outer tube;

[0006] The charging terminal is provided with a column, which is provided with an external thread, and the adapter tube is provided with an internal thread adapted to the external thread, and the internal thread and the external thread of the adapter tube sleeve are threadably connected and sleeved on the column; the outer tube is connected to the adapter tube, and the first inner hole of the adapter tube is connected to the second inner hole of the outer tube;

[0007] The column is provided with an extension portion extending into the first inner hole, and one end of the cable passes through the second inner hole and the first inner hole and is electrically connected to the extension portion;

[0008] The charging terminal is also provided with a first cooling channel connected to the first inner hole.

[0009] Optionally, the adapter cylinder includes a first cylinder, a second cylinder, and a third cylinder coaxially connected in sequence, the first inner hole passes through the first cylinder, the second cylinder, and the third cylinder, and the internal thread is provided on the inner wall of the first cylinder; the outer diameter of the first cylinder is larger than the outer diameter of the second cylinder, and the outer diameter of the second cylinder is larger than the outer diameter of the third cylinder;

[0010] The cooling terminal also includes a first adapter provided with a third inner hole. The first adapter is sleeved on the second cylinder through the third inner hole. The outer tube is sleeved on the third cylinder, and the inner wall of the adapter tube abuts against the outer wall of the outer tube.

[0011] Optionally, the cooling terminal further includes a cooling pipe connected to the charging terminal, and a fourth inner hole of the cooling pipe is connected to the first cooling channel.

[0012] Optionally, the cooling terminal further includes an adapter seat provided with a second cooling channel, the adapter seat is mounted on the charging terminal, the cooling pipe is connected to the adapter seat, and the fourth inner hole is connected to the first cooling channel through the second cooling channel.

[0013] Optionally, a first cut surface is provided on the outer wall of the adapter tube, and a second cut surface connected to the first cut surface is provided on the adapter seat.

[0014] Optionally, an annular groove is provided on the first cut surface; the cooling terminal further comprises a first sealing ring installed in the annular groove, and the first sealing ring abuts against the first cut surface.

[0015] Optionally, the adapter is provided with a plug-in portion, and the cooling pipe is sleeved on the plug-in portion;

[0016] The cooling terminal further includes a second adapter provided with a fifth inner hole. The second adapter is sleeved on the plug-in portion through the fifth inner hole, and the inner wall of the second adapter abuts against the outer wall of the cooling tube.

[0017] Optionally, the adapter and the charging terminal are integrally formed.

[0018] Optionally, the cooling terminal further includes a second sealing ring sleeved on the column, and the second sealing ring abuts against the inner wall of the adapter cylinder.

[0019] Another embodiment of the present invention further provides a charging gun, characterized in that it includes the above-mentioned cooling terminal.

[0020] In the present invention, a column is provided on the charging terminal, and the column is provided with an external thread. The adapter tube is provided with an internal thread adapted to the external thread. The internal and external threads of the adapter tube sleeve are threadedly connected and sleeved on the column. The column is provided with an extension portion extending into the first inner hole. One end of the cable passes through the second inner hole and the first inner hole and is electrically connected to the extension portion. The adapter tube is sleeved on the column via a threaded structure. The column does not occupy too much space in the first inner hole, so that the extension portion can be ultrasonically welded to the cable, ensuring the connection strength between the cable and the charging terminal. The cable and the charging terminal are not easily separated. In addition, the cooling terminal has a simple structure, low manufacturing cost, and convenient assembly and disassembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] Figure 1 A schematic structural diagram of a cooling terminal provided in the first embodiment of the present utility model;

[0023] Figure 2 A cross-sectional view of a cooling terminal provided in a first embodiment of the present utility model;

[0024] Figure 3 A schematic structural diagram of a cooling terminal provided in a second embodiment of the present invention;

[0025] Figure 4 A schematic structural diagram of a charging terminal of a cooling terminal provided in one embodiment of the present utility model;

[0026] Figure 5 A schematic structural diagram of an adapter tube of a cooling terminal provided in one embodiment of the present utility model;

[0027] Figure 6 This is a schematic structural diagram of the adapter seat of the cooling terminal provided in the second embodiment of the present utility model.

[0028] The reference numerals in the specification are as follows:

[0029] 1. Charging terminal; 11. Cylinder; 12. Extension; 13. First cooling channel; 14. First section; 15. Annular groove; 2. Adapter tube; 21. First inner hole; 22. First cylinder; 23. Second cylinder; 24. Third cylinder; 3. Outer tube; 31. Second inner hole; 4. First adapter; 5. Cooling tube; 51. Fourth inner hole; 6. Adapter seat; 61. Second cooling channel; 62. Second section; 63. Connecting part; 7. First sealing ring; 8. Second adapter. DETAILED DESCRIPTION

[0030] In order to make the technical problems, technical solutions and beneficial effects solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0031] It should be understood that the terms "upper", "lower", "left", "right", "front", "back", "middle", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention.

[0032] like Figures 1 to 4 As shown, an embodiment of the present invention provides a cooling terminal, including a cable (not shown in the figure), a charging terminal 1, a transfer tube 2 and an outer tube 3;

[0033] The charging terminal 1 is provided with a column 11, and the column 11 is provided with an external thread (not shown in the figure), and the adapter tube 2 is provided with an internal thread (not shown in the figure) adapted to the external thread, and the internal thread and the external thread of the adapter tube 2 are threadedly connected and sleeved on the column 11; the outer tube 3 is connected to the adapter tube 2, and the first inner hole 21 of the adapter tube 2 is connected to the second inner hole 31 of the outer tube 3; it can be understood that the outer tube 3 includes but is not limited to a hose, etc.

[0034] The column 11 is provided with an extension portion 12 that extends into the first inner hole 21. One end of the cable passes through the second inner hole 31 and the first inner hole 21 and is electrically connected to the extension portion 12. The charging terminal 1 is also provided with a first cooling channel 13 that communicates with the first inner hole 21. It is understood that the second inner hole 31 communicates with the first cooling channel 13 through the first inner hole 21.

[0035] Specifically, the outlet of the external liquid supply device is connected to the first end of the first cooling channel 13 away from the first inner hole 21, and the inlet of the external liquid supply device is connected to the end of the second inner hole 31 away from the first inner hole 21; the external liquid supply device can input the coolant into the first cooling channel 13, and the first cooling channel 13 flows back to the inlet of the external liquid supply device through the first inner hole 21 and the second inner hole 31; in the process of the coolant flowing in the first cooling channel 13, the first inner hole 21 and the second inner hole 31, it can cool the charging terminal 1 and the cable.

[0036] In the present invention, the charging terminal 1 is provided with a column 11, which is provided with an external thread, and the adapter tube 2 is provided with an internal thread adapted to the external thread. The internal thread and the external thread of the adapter tube 2 are threadedly connected and sleeved on the column 11. The column 11 is provided with an extension portion 12 extending into the first inner hole 21. One end of the cable passes through the second inner hole 31 and the first inner hole 21 and is electrically connected to the extension portion 12. The adapter tube 2 is sleeved on the column 11 through a threaded structure. The column 11 does not occupy too much space in the first inner hole 21, so that the extension portion 12 can be ultrasonically welded to the cable, thereby ensuring the connection strength between the cable and the charging terminal 1. The cable and the charging terminal 1 are not prone to detachment accidents. In addition, the cooling terminal has a simple structure, low manufacturing cost, and convenient assembly and disassembly operation.

[0037] In one embodiment, if Figure 2 and Figure 5 As shown, the adapter cylinder 2 includes a first cylinder 22, a second cylinder 23 and a third cylinder 24 coaxially connected in sequence, the first inner hole 21 passes through the first cylinder 22, the second cylinder 23 and the third cylinder 24, and the internal thread is arranged on the inner wall of the first cylinder 22; the outer diameter of the first cylinder 22 is greater than the outer diameter of the second cylinder 23, and the outer diameter of the second cylinder 23 is greater than the outer diameter of the third cylinder 24; it can be understood that the first cylinder 22, the second cylinder 23 and the third cylinder 24 are an integrally formed part; preferably, the cross section of the first cylinder 22 is a polyhedron.

[0038] The cooling terminal also includes a first adapter 4 having a third inner hole. The first adapter 4 is sleeved onto the second barrel 23 through the third inner hole. The outer tube 3 is sleeved onto the third barrel 24, with the inner wall of the adapter barrel 2 abutting against the outer wall of the outer tube 3. It is understood that the first adapter 4 abuts against the end surface of the first barrel 22 facing the second barrel 23; the first adapter 4 can be sleeved onto the second barrel 23 via a threaded structure, a snap-fit structure, or the like. An annular snap-fit groove is provided between the first adapter 4 and the third barrel 24, into which one end of the outer tube 3 is inserted.

[0039] In this embodiment, the outer tube 3 is connected to the adapter tube 2 via the first adapter 4 , and the adapter tube 2 is mounted on the charging terminal 1 via a threaded structure. The assembly and disassembly operation of the cooling terminal is simple.

[0040] In one embodiment, if Figure 1As shown, the cooling terminal further includes a cooling tube 5 connected to the charging terminal 1. The fourth inner hole 51 of the cooling tube 5 communicates with the first cooling channel 13. It is understood that an external liquid supply device is connected to the end of the cooling tube 5 away from the charging terminal 1, so that the outlet of the external liquid supply device communicates with the first cooling channel 13 through the fourth inner hole 51. In this embodiment, the design of the liquid cooling tube 5 and the external tube 3 facilitates assembly and disassembly of the cooling terminal and the external liquid supply device.

[0041] In one embodiment, if Figure 1 As shown, the cooling terminal further includes an adapter 6 having a second cooling channel 61. The adapter 6 is mounted on the charging terminal 1, the cooling tube 5 is connected to the adapter 6, and the fourth inner hole 51 communicates with the first cooling channel 13 via the second cooling channel 61. It is understood that the adapter 6 can be mounted on the charging terminal 1 using fasteners such as screws and bolts. The design of the adapter 6 being separate from the charging terminal 1 reduces the manufacturing difficulty and cost of the cooling terminal.

[0042] In one embodiment, if Figure 3 、 Figure 4 as well as Figure 6 As shown, the outer wall of the adapter tube 2 is provided with a first cut surface 14, and the adapter seat 6 is provided with a second cut surface 62 connected to the first cut surface 14. It can be understood that the first cut surface 14 and the second cut surface 62 are both planes, and the adapter seat 6 is mounted on the charging terminal 1 via the interconnected first cut surface 14 and the second cut surface 62, ensuring the stability of the adapter seat 6 mounted on the charging terminal 1.

[0043] In one embodiment, if Figure 4 As shown, an annular groove 15 is provided on the first cut surface 14; the cooling terminal further includes a first sealing ring 7 mounted in the annular groove 15, with the first sealing ring 7 abutting the first cut surface 14. It is understood that the annular groove 15 is provided around the inlet of the first cooling channel 13, and the first sealing ring 7 can seal the connection between the first cooling channel 13 and the second cooling channel 61, ensuring the tightness of the adapter 6 when mounted on the charging terminal 1.

[0044] In one embodiment, if Figure 3 and Figure 6As shown, the adapter 6 is provided with a plug-in portion 63, and the cooling pipe 5 is sleeved on the plug-in portion 63; preferably, a tapered guide portion is provided on the outer wall of the plug-in portion 63, and the cooling pipe 5 is plugged into the plug-in portion 63, and the tapered guide portion abuts against the inner wall of the cooling pipe 5, thereby ensuring the stability of the cooling pipe 5 plugged into the plug-in portion 63.

[0045] The cooling terminal also includes a second adapter 8 having a fifth inner hole. The second adapter 8 is sleeved onto the insert portion 63 through the fifth inner hole, with the inner wall of the second adapter 8 abutting the outer wall of the cooling tube 5. It is understood that the second adapter 8 can be sleeved onto the insert portion 63 using a threaded structure or a snap-fit structure. An annular snap-fit groove is defined between the second adapter 8 and the insert portion 63, into which one end of the cooling tube 5 is inserted.

[0046] In this embodiment, the cooling pipe 5 is fixedly connected to the adapter seat 6 via the second adapter 8, so that the assembly and disassembly operation between the cooling pipe 5 and the adapter seat 6 is simple.

[0047] In one embodiment, if Figure 1 As shown, the adapter 6 and the charging terminal 1 are integrally formed, thereby ensuring the strength and rigidity of the cooling terminal.

[0048] In one embodiment, the cooling terminal further includes a second sealing ring (not shown) sleeved on the column 11, which abuts against the inner wall of the adapter tube 2. It is understood that the number of second sealing rings can be increased based on actual needs, for example, two or three second sealing rings can be provided; the second sealing ring can seal the gap between the adapter tube and the column 11.

[0049] Preferably, an annular accommodating groove is provided on the outer wall of the column 11, and the second sealing ring is installed in the annular accommodating groove.

[0050] Another embodiment of the present invention further provides a charging gun, comprising the above-mentioned cooling terminal.

[0051] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A cooling terminal, characterized in that: Including cables, charging terminals, adapter tubes and outer tubes; The charging terminal is provided with a column, which is provided with an external thread, and the adapter tube is provided with an internal thread adapted to the external thread, and the internal thread and the external thread of the adapter tube sleeve are threadably connected and sleeved on the column; the outer tube is connected to the adapter tube, and the first inner hole of the adapter tube is connected to the second inner hole of the outer tube; The column is provided with an extension portion extending into the first inner hole, and one end of the cable passes through the second inner hole and the first inner hole and is electrically connected to the extension portion; The charging terminal is also provided with a first cooling channel connected to the first inner hole.

2. The cooling terminal according to claim 1, characterized in that: The adapter tube includes a first tube body, a second tube body, and a third tube body coaxially connected in sequence, the first inner hole passes through the first tube body, the second tube body, and the third tube body, and the internal thread is provided on the inner wall of the first tube body; the outer diameter of the first tube body is larger than the outer diameter of the second tube body, and the outer diameter of the second tube body is larger than the outer diameter of the third tube body; The cooling terminal also includes a first adapter provided with a third inner hole. The first adapter is sleeved on the second cylinder through the third inner hole. The outer tube is sleeved on the third cylinder, and the inner wall of the adapter tube abuts against the outer wall of the outer tube.

3. The cooling terminal according to claim 1, characterized in that: The cooling terminal further includes a cooling pipe connected to the charging terminal, and a fourth inner hole of the cooling pipe is connected to the first cooling channel.

4. The cooling terminal according to claim 3, characterized in that: The cooling terminal also includes an adapter seat provided with a second cooling channel, the adapter seat is installed on the charging terminal, the cooling pipe is connected to the adapter seat, and the fourth inner hole is connected to the first cooling channel through the second cooling channel.

5. The cooling terminal according to claim 4, characterized in that: A first cut surface is provided on the outer wall of the adapter tube, and a second cut surface connected to the first cut surface is provided on the adapter seat.

6. The cooling terminal according to claim 5, characterized in that: An annular groove is provided on the first cut surface; the cooling terminal further comprises a first sealing ring installed in the annular groove, and the first sealing ring abuts against the first cut surface.

7. The cooling terminal according to claim 4, characterized in that: The adapter is provided with a plug-in portion, and the cooling pipe is sleeved on the plug-in portion; The cooling terminal further includes a second adapter provided with a fifth inner hole. The second adapter is sleeved on the plug-in portion through the fifth inner hole, and the inner wall of the second adapter abuts against the outer wall of the cooling tube.

8. The cooling terminal according to claim 4, characterized in that: The adapter and the charging terminal are integrally formed.

9. The cooling terminal according to claim 1, characterized in that: The cooling terminal further includes a second sealing ring sleeved on the column, and the second sealing ring abuts against the inner wall of the adapter cylinder.

10. A charging gun, characterized in that: Comprising the cooling terminal according to any one of claims 1 to 9.

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