Terminal for liquid-cooled high-power charging device, liquid-cooled cable and charging device

Abstract

The utility model discloses a terminal for a liquid-cooled high-power charging device, a liquid-cooled cable and a charging device. According to the technical scheme, the power terminal comprises a power terminal body, the power terminal body is provided with an axially-through liquid cooling channel, a first liquid cooling pipeline joint and a second liquid cooling pipeline joint which are communicated with the liquid cooling channel are integrally formed at the two ends of the power terminal body respectively, and a wiring part is integrally formed on the second liquid cooling pipeline joint. And the wiring part is provided with a welding surface. The power terminal has the advantages of high power, simple and small structure, good cooling effect and the like by arranging the axially through liquid cooling channel on the power terminal body and integrally forming the first liquid cooling pipeline joint, the second liquid cooling pipeline joint and the wiring part.

Description

Technical Field

[0001] The utility model belongs to the field of new energy vehicles, and in particular relates to a terminal for an electric device. Background Art

[0002] In existing charging technologies, although the method of increasing the cross-sectional area of ​​the cable has been adopted to increase the charging current and control the temperature rise, this inevitably brings about the problem of bulky product size and increased weight, causing troubles for users in terms of operational convenience and storage convenience.

[0003] In addition, the terminals and cables inside the charging and discharging devices are mostly connected by riveting, which has limitations including high contact resistance, which reduces the power transmission efficiency; insufficient connection strength, which is prone to pull-off; and poor corrosion resistance, which affects long-term reliability and safety. These factors together point to the urgent need for innovation and optimization of existing charging and discharging technologies. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a terminal for a liquid-cooled high-power charging device, a liquid-cooled cable and a charging device.

[0005] In order to solve the above problems, the technical solution adopted by the utility model includes: a power terminal body, characterized in that: the power terminal body is provided with an axially penetrating liquid cooling channel, and the first liquid cooling pipe joint and the second liquid cooling pipe joint connected to the liquid cooling channel are integrally formed at both ends, and the second liquid cooling pipe joint is integrally formed with a wiring portion, and the wiring portion has a welding surface.

[0006] The terminal for a liquid-cooled high-power charging device is characterized in that a fixing screw hole is integrally formed on one side of the power terminal body.

[0007] The terminal for liquid-cooled high-power charging device is characterized in that a fastening bolt is provided in the fixing screw hole of the power terminal body.

[0008] The terminal for liquid-cooled high-power charging device is characterized in that: a first stop tooth is provided on the circumferential surface of the first liquid-cooling pipe joint, and a second stop tooth is provided on the circumferential surface of the second liquid-cooling pipe joint.

[0009] A liquid-cooled cable, implemented according to the terminal for a liquid-cooled high-power charging device as described in any of the above items, characterized in that it includes a wire, a first liquid-cooling pipe and a second liquid-cooling pipe, the first liquid-cooling pipe is connected to the first liquid-cooling pipe joint, the second liquid-cooling pipe is connected to the second liquid-cooling pipe joint, and the wire passes through the first liquid-cooling pipe and the first liquid-cooling pipe joint and is welded to the wiring portion.

[0010] The liquid cooling cable is characterized in that there are four conductors, and every two conductors form a group.

[0011] The liquid cooling cable is characterized in that the conductor is provided with an outer insulating layer.

[0012] A charging device, characterized in that: the charging device is provided with any of the liquid cooling cables described above.

[0013] The terminal, liquid-cooled cable and charging device for a liquid-cooled high-power charging device of the utility model have the following advantages: 1. By providing an axially penetrating liquid-cooling channel on the power terminal body and integrally forming a first liquid-cooling pipe joint, a second liquid-cooling pipe joint and a wiring part, it has the advantages of high power, simple and compact structure and good cooling effect; 2. By connecting the first liquid-cooling pipe joint and the second liquid-cooling pipe joint at both ends of the power terminal body, and then passing the wire through the first liquid-cooling pipe and the first liquid-cooling pipe joint and welding them to the wiring part, an integrated and modular application can be realized, which is convenient for the application and promotion of liquid cooling devices.

[0014] The utility model is further described below in conjunction with the accompanying drawings of the specification. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is an exploded view of the terminal for the liquid-cooled high-power charging device of the utility model;

[0016] Figure 2 It is a cross-sectional view of a terminal for a liquid-cooled high-power charging device of the utility model;

[0017] Figure 3 It is a structural schematic diagram of the liquid cooling cable of the utility model;

[0018] Figure 4 It is a schematic diagram of the coolant circulation of the liquid-cooled cable of the utility model. DETAILED DESCRIPTION Embodiment 1:

[0019] Reference Figure 1-Figure 2 As shown, the terminal for cold high-power charging device of the utility model comprises a power terminal body 1, the power terminal body 1 is made of metal, the center of the power terminal body 1 is provided with an axially penetrating liquid cooling channel 2, and the two ends of the power terminal body 1 are respectively integrally formed with a first liquid cooling pipe joint 3 and a second liquid cooling pipe joint 4 connected with the liquid cooling channel 2, and the second liquid cooling pipe joint 4 is integrally formed with a wiring part 5. The upper end of the wiring part 5 is provided with a welding surface 14. This terminal structure can be used as an individual, and can also be combined by multiple individuals into a set of circulating liquid flow system, such as one terminal structure individual as a liquid inlet and another terminal structure individual as a liquid outlet.

[0020] Preferably, a fixing screw hole 9 is integrally formed on one side of the power terminal body 1. A fastening bolt 12 is arranged in the fixing screw hole 9 of the power terminal body 1. The power terminal body 1 can be expanded as a terminal joint to be fastened to a copper busbar or other terminals to achieve energy transmission.

[0021] Preferably, a first stop tooth 10 having an interference fit with the insulating liquid cooling pipe is provided on the circumferential surface of the first liquid cooling pipe joint 3, and a second stop tooth 11 having an interference fit with the insulating liquid cooling pipe is provided on the circumferential surface of the second liquid cooling pipe joint 4, so as to improve the reliability of the connection with the insulating liquid cooling pipe. Embodiment 2:

[0022] Reference Figure 3-Figure 4 As shown, the liquid-cooled cable of the utility model is implemented according to the terminal for the liquid-cooled high-power charging device described in Example 1, including a wire 6, a first liquid-cooling pipe 7 and a second liquid-cooling pipe 8, the first liquid-cooling pipe 7 is connected to the first liquid-cooling pipe joint 3, the second liquid-cooling pipe 8 is connected to the second liquid-cooling pipe joint 4, and the wire 6 passes through the first liquid-cooling pipe 7 and the first liquid-cooling pipe joint 3 and is welded to the wiring portion 5.

[0023] Preferably, there are four conductors 6, and two conductors form a group, so as to form a double-inlet and double-outlet casing circulation liquid flow system structure to improve the interception amount and cooling effect.

[0024] Preferably, the wire 6 is provided with an outer insulating layer 13 to insulate and protect the wire 6 . Embodiment 3:

[0025] Reference Figure 3-Figure 4 As shown, the charging device of the utility model (such as a new energy vehicle charging gun) is provided with the liquid cooling cable described in Example 2. The specific connection method between the liquid cooling cables is a well-known technology and will not be described here.

[0026] The above does not impose any formal limitation on the utility model. Although the utility model has been disclosed as a preferred implementation case as above, it is not used to limit the utility model. Any technician familiar with this profession can make some changes or modifications to the equivalent implementation cases of equivalent changes by using the structure and technical content disclosed above without departing from the scope of the technical solution of the utility model. However, any simple modification, equivalent change and modification made to the above implementation cases based on the technical essence of the utility model without departing from the content of the technical solution of the utility model are still within the scope of the technical solution of the utility model.

Claims

1. A terminal for a liquid-cooled high-power charging device, comprising a power terminal body (1), characterized in that: The power terminal body (1) is provided with an axially penetrating liquid cooling channel (2), and has a first liquid cooling pipe joint (3) and a second liquid cooling pipe joint (4) integrally formed at both ends thereof, the first liquid cooling pipe joint (3) and the second liquid cooling pipe joint (4) being connected to the liquid cooling channel (2), the second liquid cooling pipe joint (4) being integrally formed with a wiring portion (5), the wiring portion (5) having a welding surface (14).

2. The terminal for a liquid-cooled high-power charging device according to claim 1, characterized in that: A fixing screw hole (9) is integrally formed on one side of the power terminal body (1).

3. The terminal for a liquid-cooled high-power charging device according to claim 2, characterized in that: A fastening bolt (12) is provided in the fixing screw hole (9) of the power terminal body (1).

4. The terminal for a liquid-cooled high-power charging device according to claim 1, characterized in that: A first back-stopping tooth (10) is provided on the circumferential surface of the first liquid cooling pipe joint (3), and a second back-stopping tooth (11) is provided on the circumferential surface of the second liquid cooling pipe joint (4).

5. A liquid-cooled cable, implemented according to the terminal for a liquid-cooled high-power charging device according to any one of claims 1 to 4, characterized in that: The invention comprises a wire (6), a first liquid cooling pipe (7) and a second liquid cooling pipe (8), wherein the first liquid cooling pipe (7) is connected to the first liquid cooling pipe joint (3), the second liquid cooling pipe (8) is connected to the second liquid cooling pipe joint (4), and the wire (6) passes through the first liquid cooling pipe (7) and the first liquid cooling pipe joint (3) and is welded to the connection portion (5).

6. The liquid cooling cable according to claim 5, characterized in that: There are four conductors (6), and two conductors form a group.

7. The liquid cooling cable according to claim 6, characterized in that: The conductive wire (6) is provided with an outer insulating layer (13).

8. A charging device, characterized in that: The charging device is provided with the liquid cooling cable described in any one of claims 5-7.

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