High-voltage terminal butt joint device

Abstract

The utility model discloses a high-voltage terminal butting device, and belongs to the technical field of wire harness connection of an automobile power battery system. The high-voltage wiring harness connector comprises an insulating shell, the insulating shell is provided with at least one inner cavity, a copper bar is arranged in the inner cavity, the copper bar is fixedly connected with a positioning piece used for being connected with a high-voltage wiring harness terminal, the side wall of the insulating shell is provided with a wiring harness channel where a high-voltage wiring harness can be routed, and the top end of the insulating shell is provided with an operation opening. The butt joint device effectively solves the problems that an existing connection mode is tedious in operation step and has electric shock risks in the later period, physical isolation is achieved through the insulation shell, high-voltage safety is guaranteed, meanwhile, use of an insulation rubber tape is avoided, consumables are reduced, and secondly, the butt joint device is simple in structure and convenient to use. And the positioning piece on the copper bar is connected with the terminal, so that the positioning and connecting reliability is good, and the operation is simple.

Description

Technical Field

[0001] The utility model relates to the technical field of wire harness connection of automotive power battery systems, and particularly relates to a high-voltage terminal docking device. Background Technique

[0002] At present, the high-voltage wire harness of the power battery system in the sample stage is mostly connected to the charging and discharging equipment by testers using bolts and nuts for fastening. The specific steps are as follows: First, do a good job in self-insulation protection, select a wrench that matches the bolts and nuts for fastening. After using a resistance test instrument to measure that the contact resistance is qualified, wind a high-voltage insulation tape around the connection for insulation protection. Finally, set up a high-voltage danger warning sign for area isolation. For additional high-power test requirements, parallel wire harness operations are also required, making the operation more cumbersome. It can be seen that the existing connection method has a complex operation, is difficult to operate after the operator wears high-voltage insulating gloves, cannot freely use tools for fastening, and requires insulation tape for protection during multiple connection processes, resulting in material consumption and increased costs. In addition, under the impact of high voltage and large current for a long time, the temperature rises, the protection performance of the insulation tape decreases, and it is easy to be damaged, which may lead to electric shock accidents. Content of the Utility Model

[0003] The purpose of the utility model is to overcome the defects existing in the prior art and provide a high-voltage terminal docking device for solving the problems of cumbersome operation steps and potential electric shock risks in the later stage of the existing connection method.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A high-voltage terminal docking device disclosed by the utility model includes:

[0006] An insulating housing having at least one inner cavity, a copper bar is installed in the inner cavity, a positioning member for connecting with a high-voltage wire harness terminal is fixedly connected to the copper bar, and a wire harness channel through which the high-voltage wire harness can pass is provided on the side wall of the insulating housing. Among them, an operation opening is provided at the top of the insulating housing for connecting the high-voltage wire harness terminal and the positioning member.

[0007] Further, two of the inner cavities are provided in the insulating housing.

[0008] Further, the number of the positioning members on the copper bar matches the number of the high-voltage wire harnesses, and the copper bar is in a T-shaped structure and connects multiple high-voltage wire harnesses in parallel.

[0009] Further, the cross-section of the insulating housing projects in a quadrilateral structure on the horizontal plane, and the wire harness channels are provided on the side walls of the quadrilateral structure.

[0010] Further, it further includes an insulating cover plate that can cover the operation port, and one end of the insulating cover plate is hinged to the insulating housing.

[0011] Further, the positioning member is a positioning bolt, and a fastening nut is threadedly connected above the terminal on the positioning bolt.

[0012] In the above technical solution, a high-voltage terminal docking device provided by the present utility model has the following beneficial effects:

[0013] For the high-voltage terminal docking device designed by the present utility model, its insulating housing is provided with a copper bar in the inner cavity, and a positioning member is fixedly connected to the copper bar for connecting with the high-voltage wire harness terminal. A wire harness channel is opened on the side wall of the insulating housing for the routing of the high-voltage wire harness, and an operation port is opened at the top of the insulating housing. This docking device effectively protects the connection position of the high-voltage wire harness terminal by using the insulating housing, realizes physical isolation, ensures high-voltage safety, and also avoids the use of insulating tape, reducing consumables. Secondly, the positioning member on the copper bar is used to connect with the terminal, and the positioning and connection reliability is good, and the operation is simple;

[0014] This docking device not only shortens the wire harness connection time but also can be compatible with the parallel mode connection under high-power modes. Moreover, the connection tool is simple, there is no consumption of insulating tape materials, and in subsequent long-term charge and discharge cycles, the high-voltage safety risks brought by the aging and damage of the insulating tape are eliminated. It can be extended to multiple platform projects for use in the future. In summary, this device has a simple structure, is easy to install, has strong applicability, low connection cost, and high safety factor, which is beneficial to reducing the test cost of the power battery system and improving the test efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present utility model, and those of ordinary skill in the art can also obtain other drawings based on these drawings.

[0016] Figure 1 is an axonometric view of a high-voltage terminal docking device disclosed by the present utility model;

[0017] Figure 2 is a front view of a high-voltage terminal docking device disclosed by the present utility model;

[0018] Figure 3 is a left view of a high-voltage terminal docking device disclosed by the present utility model;

[0019] Figure 4 is a top view of a high-voltage terminal docking device disclosed by the present utility model.

[0020] Description of the reference numerals:

[0021] 1. Insulating housing; 2. Fastening nut; 3. Positioning bolt; 4. Copper busbar; 5. Terminal; 6. Insulating cover plate; 7. Wiring harness channel; 8. Operation port. Detailed implementation mode

[0022] In order to enable those skilled in the art to better understand the technical solutions of the present utility model, the present utility model will be further described in detail below in conjunction with the accompanying drawings.

[0023] See Figures 1-4 as shown in

[0024] A high-voltage terminal docking device of the utility model includes: an insulating housing 1;

[0025] The insulating housing 1 has at least one inner cavity, in which a copper busbar 4 is installed. A positioning member for connecting with the high-voltage wiring harness terminal 5 is fixedly connected to the copper busbar 4. Preferably, the positioning member is a positioning bolt 3. A wiring harness channel 7 through which the high-voltage wiring harness can run is provided on the side wall of the insulating housing 1. Among them, an operation port 8 is provided at the top end of the insulating housing 1 for connecting the high-voltage wiring harness terminal 5 and the positioning member;

[0026] The high-voltage terminal docking device effectively protects the connection position of the high-voltage wiring harness terminal through the insulating housing 1, realizes physical isolation, ensures high-voltage safety, and at the same time avoids the use of insulating tape, reducing consumables. Secondly, the positioning bolt 3 on the copper busbar 4 is used to connect with the terminal 5, and the positioning and connection reliability is good, and the operation is simple;

[0027] See Figure 4 as shown in

[0028] Preferably, two inner cavities are provided in the insulating housing 1, and copper busbars 4 are fixedly connected to both inner cavities. The number of positioning members on the copper busbars 4 matches the number of high-voltage wiring harnesses. The copper busbars 4 are arranged in a T-shaped structure to parallelly connect multiple high-voltage wiring harnesses, and the wiring harnesses are arranged regularly. The insulating housing 1 is small in size. In this embodiment, the number of positioning members is three, and the number of positioning members can be set according to actual use requirements.

[0029] Preferably, the cross-section of the insulating housing 1 projects in a quadrilateral structure on the horizontal plane, and wiring harness channels 7 are provided on the side walls of the quadrilateral structure. This structure performs parallel positioning and installation operations by opening wiring harness channels 7 on the front, back, left, and right of the insulating housing body 1.

[0030] Preferably, the high-voltage terminal docking device further includes an insulating cover plate 6 that can cover the operation port 8. One end of the insulating cover plate 6 is hinged to the insulating housing 1, and the operation port 8 is opened and closed through the insulating cover plate 6, further improving the use safety of the high-voltage terminal docking device.

[0031] Preferably, a fastening nut 2 is threadedly connected above the positioning bolt 3. The terminal 5 is pressed by the fastening nut 2, and the terminal 5 and the positioning bolt 3 are fixedly connected to avoid loose connection.

[0032] In the above technical solution, a high-voltage terminal docking device provided by the present utility model has the following usage method: During installation, first confirm the positive and negative polarities of the high-voltage wire harness terminal 5 of the connected device. The operator wears high-voltage insulating gloves and places the positive pole of the wire harness of the charging and discharging device and the positive pole of the wire harness of the power battery system on the positioning bolt 3 of the copper bar 4, ensuring that there is no foreign matter mixed at the connection of the terminal 5. Then, use the fastening nut 2 and a ratchet wrench for fastening. After measuring that the contact resistance is qualified with a resistance testing instrument, finally close the upper cover of the insulating housing 1. The negative wire harness is connected in the same way as the positive wire harness. In this way, the quick connection of the copper nose terminal 5 of the high-voltage wire harness is achieved, and the insulation safety during subsequent charging and discharging processes is ensured.

[0033] In the above technical solution, a high-voltage terminal docking device provided by the present utility model not only shortens the wire harness connection time but also can be compatible with the parallel connection mode under high-power modes. Moreover, the connection tool is simple, there is no consumption of insulating tape materials, and during subsequent long-term charge and discharge cycles, the high-voltage safety risks brought by the aging and damage of the insulating tape are eliminated. It can be extended to multiple platform projects in the future. In summary, the device has a simple structure, is easy to install, has strong applicability, low connection cost, and high safety factor, which is beneficial to reducing the test cost of the power battery system and improving the test efficiency.

[0034] Only some exemplary embodiments of the present utility model have been described by way of illustration above. Undoubtedly, for those of ordinary skill in the art, the described embodiments can be modified in various different ways without departing from the spirit and scope of the present utility model. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the protection scope of the claims of the present utility model.

Claims

1. A high-voltage terminal docking device, characterized in that Comprising: An insulating housing (1) having at least one inner cavity in which a copper busbar (4) is installed. A positioning member for connecting to a high-voltage wire harness terminal (5) is fixedly connected to the copper busbar (4). A wire harness channel (7) through which the high-voltage wire harness can run is provided on the side wall of the insulating housing (1). Among them, an operation opening (8) is provided at the top of the insulating housing (1) for connecting the high-voltage wire harness terminal (5) and the positioning member.

2. The high-voltage terminal docking device according to claim 1, wherein ； Two of the inner cavities are provided in the insulating housing (1).

3. A high-voltage terminal docking device according to claim 1 or 2, It is characterized in that; The number of the positioning members on the copper busbar (4) matches the number of the high-voltage wire harnesses, and the copper busbar (4) is in a T-shaped structure and connects multiple high-voltage wire harnesses in parallel.

4. A high-voltage terminal docking device according to claim 3, characterized in that; The cross-section of the insulating housing (1) projects as a quadrilateral structure in the horizontal plane, and the wire harness channels (7) are provided on the side walls of the quadrilateral structure.

5. A high-voltage terminal docking device according to claim 1 or 2, characterized in that ； It further includes an insulating cover plate (6) that can cover the operation opening (8), and one end of the insulating cover plate (6) is hinged to the insulating housing (1).

6. The high-voltage terminal docking device according to claim 1 or 2, characterized in that ； The positioning member is a positioning bolt (3), and a fastening nut (2) is threadedly connected above the terminal (5) of the positioning bolt (3).

Images