High-voltage wire harness connection protection device

By designing a high-voltage wire harness connection protection device in the test chamber, the high-voltage wire harness and wiring posts are achieved using magnetic suction parts and conductive parts, the problems of precise alignment and cumbersome connection in the prior art are solved, and the connection efficiency and operation convenience are improved.

CN222915290UActive Publication Date: 2025-05-27NINGDE BOFA ZHENGYU TESTING TECH CO LTD
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Patent Information

Application Number
CN202421838822.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-31
Publication Date
2025-05-27
Estimated Expiration
2034-07-31

AI Technical Summary

Technical Problem

The connection method between high-voltage wiring harness and terminals in existing test chambers requires precise alignment, which is cumbersome and difficult to operate.

Method used

A high-voltage wire harness connection protection device is designed, including an insulated housing, wiring posts, magnetic suction parts and conductive parts. A positioning groove is provided on the magnetic suction piece to quickly locate the connectors of the high-voltage wire harness. The conductive parts are electrically connected to the terminals through the magnetic suction piece to ensure the stable electrical connection between the high-voltage wire harness and the terminals.

Benefits of technology

Through the design of magnetic suction parts and conductive parts, the difficulty of connecting the high-voltage wire harness and wiring posts is reduced, and a fast and stable electrical connection is achieved, which is easy to operate and is suitable for one-handed operation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a high-voltage wire harness connection protection device, which comprises an insulating shell, a binding post, a magnetic attraction piece and a conductive piece, and is characterized in that the binding post is arranged in the insulating shell; a positioning groove matched with a connector of the high-voltage wire harness is formed in the magnetic attraction piece, and the positioning groove is used for containing the connector of the high-voltage wire harness; the conductive piece is arranged in the positioning groove and penetrates through the magnetic attraction piece to be electrically connected with the binding post; in the thickness direction of the conductive part, the conductive part protrudes out of the surface of the positioning groove, the part, protruding out of the surface of the positioning groove, of the conductive part has a first thickness, and the depth of the positioning groove is a second thickness; the first thickness is smaller than the second thickness. According to the utility model, the connection difficulty of the high-voltage wiring harness and the binding post can be reduced.
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Description

Technical Field

[0001] The utility model relates to the field of test chambers, in particular to a protection device for high-voltage wire harness connection. Background Art

[0002] Since various performance tests need to be carried out on batteries before leaving the factory, at present, in this field, the actual use environment of the battery is generally simulated through a test chamber to fully test the performance of the battery under different extreme environments. In order to fully test the battery performance, an insulating junction box is generally arranged outside the test chamber, and the test chamber is electrically connected to an external detection module through the insulating junction box to realize the performance detection of the battery. Specifically, before the battery performs the performance test, the detection module needs to be electrically connected to the insulating junction box on the outer wall of the test chamber, so that the detection module is electrically connected to the high-voltage wire harness of the test chamber, and then the detection module is electrically connected to the battery, so as to facilitate the detection of different performances of the battery. The insulating junction box arranged outside the existing test chamber generally uses fastening screws to connect the high-voltage wire harness to the terminal. When connecting the high-voltage wire harness each time, it is necessary to first align the hole positions of the high-voltage wire harness joint with the hole positions of the terminal, and then tighten the screws to sequentially pass through the above two hole positions and be threadedly connected to the terminal. This connection method must ensure that the two hole positions are completely aligned before the fastening screw can be connected to the terminal, that is, this connection method has high requirements for the alignment accuracy of the hole positions and there are many inconveniences in operation. Summary of the Utility Model

[0003] The technical problem to be solved by the utility model is: to provide a protection device for high-voltage wire harness connection, which reduces the connection strength between the high-voltage wire harness and the terminal.

[0004] In order to solve the above technical problem, the technical solution adopted by the utility model is:

[0005] A protection device for high-voltage wire harness connection includes an insulating housing and a terminal post. The terminal post is installed in the insulating housing, and further includes a magnetic attraction member and a conductive member;

[0006] The magnetic attraction member is provided with a positioning groove matching the joint of the high-voltage wire harness, and the positioning groove is used for accommodating the joint of the high-voltage wire harness;

[0007] The conductive member is arranged in the positioning groove and electrically connected to the terminal post through the magnetic attraction member;

[0008] In the thickness direction of the conductive member, the conductive member protrudes from the surface of the positioning groove, and the part of the conductive member protruding from the surface of the positioning groove has a first thickness, and the depth of the positioning groove is a second thickness;

[0009] The first thickness is less than the second thickness.

[0010] Furthermore, at least one end of the positioning groove has an opening for communicating with the external space, and the opening is for the connector of the high-voltage wire harness to be embedded.

[0011] Furthermore, at least three positioning grooves are provided;

[0012] All the positioning grooves are arranged in sequence along the length direction of the magnetic attraction member.

[0013] Furthermore, the positioning grooves are divided into a first positioning groove and a second positioning groove;

[0014] An angle less than 90° is formed between the distribution direction of the first positioning groove and the length direction of the magnetic attraction member;

[0015] The distribution direction of the second positioning groove is parallel to the length direction of the magnetic attraction member.

[0016] Furthermore, the magnetic attraction member includes a first magnetic attraction portion, a connecting portion, and a second magnetic attraction portion connected in sequence;

[0017] In the thickness direction of the conductive member, the first magnetic attraction portion and the second magnetic attraction portion are arranged in a staggered manner;

[0018] The first magnetic attraction portion, the connecting portion, and the second magnetic attraction portion form a stepped structure.

[0019] Furthermore, the magnetic attraction member is connected to the terminal.

[0020] Furthermore, the ratio of the first thickness to the second thickness is 0.1 to 0.4.

[0021] Furthermore, an insulating cavity is provided in the insulating housing;

[0022] A set of the terminals, the magnetic attraction member, and the conductive member is arranged in each insulating cavity;

[0023] In the width direction of the insulating cavity, an assembly channel for the high-voltage wire harness to pass through is provided between the magnetic attraction member and the side wall of the insulating cavity.

[0024] Furthermore, in the length direction of the insulating cavity, threading holes for the high-voltage wire harness to pass through are respectively provided at both ends of the insulating cavity.

[0025] The beneficial effects of the present utility model are as follows: By providing a magnetic attraction member on the terminal and providing a positioning groove on the magnetic attraction member, it is used for quickly positioning the connector of the high-voltage wire harness, reducing the connection difficulty between the fastening screw and the terminal. The provision of the conductive member is used to ensure that the connector of the high-voltage wire harness can be electrically connected to the terminal, ensuring the conduction of the circuit. The present utility model can reduce the positioning difficulty on the premise of ensuring the stable electrical connection between the high-voltage wire harness and the terminal, and even a single hand can complete the electrical connection between the wire harness and the terminal, reducing the assembly difficulty. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 FIG. is a partial structural schematic diagram of the high-voltage wire harness connection protection device in the present utility model;

[0027] Figure 2 is Figure 1 front view of;

[0028] Figure 3 FIG. is a structural schematic diagram of the magnetic attraction member and the conductive member in the present utility model;

[0029] Figure 4 is Figure 3 front view of;

[0030] Figure 5 is Figure 3 top view of.

[0031] Reference numeral description:

[0032] 1. Insulating housing; 11. Insulating cavity; 111. Wire passing hole;

[0033] 2. Terminal;

[0034] 3. Magnetic attraction member; 31. Positioning groove; 311. Opening; 312. First positioning groove; 313. Second positioning groove; 32. First magnetic attraction part; 33. Connecting part; 34. Second magnetic attraction part;

[0035] 4. Conductive member;

[0036] 5. High-voltage wire harness; 51. Connector;

[0037] 6. Fastening screw. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0038] To describe in detail the technical content, the achieved objectives and the effects of the present utility model, the following is described in conjunction with the embodiments and with reference to the accompanying drawings.

[0039] Please refer to Figures 1 - 5A high-voltage wire harness connection protection device comprises an insulating shell 1, a terminal 2, a magnetic member 3 and a conductive member 4, wherein the terminal 2 is installed in the insulating shell 1; a positioning groove 31 matching the connector 51 of the high-voltage wire harness 5 is provided on the magnetic member 3, and the positioning groove 31 is used to accommodate the connector 51 of the high-voltage wire harness 5; the conductive member 4 is arranged in the positioning groove 31, and passes through the magnetic member 3 to be electrically connected to the terminal 2; in the thickness direction of the conductive member 4, the conductive member 4 protrudes from the surface of the positioning groove 31, and the portion of the conductive member 4 protruding from the surface of the positioning groove 31 has a first thickness, and the depth of the positioning groove 31 is a second thickness; the first thickness is less than the second thickness. Among them, the connector 51 of the high-voltage wire harness 5 is a flat connector 51. Specifically, a plurality of wiring points are arranged on the terminal 2, and each wiring point is electrically connected only to the corresponding conductive member 4.

[0040] In some embodiments, at least one end of the positioning groove 31 has an opening 311 for communicating with the external space, and the opening 311 is used for the connector 51 of the high-voltage wire harness 5 to be embedded. Preferably, one end of the positioning groove 31 is provided with an opening 311, and the opening 311 is flush with the edge of the magnetic attraction member 3, so as to provide a clearance space for the connector 51 of the high-voltage wire harness 5.

[0041] Optionally, the ratio of the first thickness h to the second thickness w is 0.1-0.4. The larger the ratio, the shallower the depth of the high-voltage wire harness 5 connector 51 embedded in the positioning groove 31. If the ratio is too small, it may cause poor contact between the high-voltage wire harness 5 connector 51 and the conductive member 4. Preferably, the ratio of the first thickness to the second thickness is 0.25, which can ensure that the high-voltage wire harness 5 connector 51 is stably electrically connected to the conductive member 4 and that the high-voltage wire harness 5 connector 51 is stably embedded in the positioning groove 31.

[0042] In some embodiments, the magnetic attraction part 3 includes a first magnetic attraction part 32, a connecting part 33 and a second magnetic attraction part 34 connected in sequence; in the thickness direction of the conductive part 4, the first magnetic attraction part 32 and the second magnetic attraction part 34 are staggered; the first magnetic attraction part 32, the connecting part 33 and the second magnetic attraction part 34 form a stepped structure to realize the connection of the high-voltage wire harness 5 at multiple points.

[0043] In some embodiments, at least three positioning grooves 31 are provided, and all positioning grooves 31 are sequentially arranged along the length direction of the magnetic attraction member 3. Preferably, three positioning grooves 31 are provided, and the opening 311 of each positioning groove 31 faces different directions.

[0044] In some embodiments, the positioning groove 31 is divided into a first positioning groove 312 and a second positioning groove 313; the distribution direction of the first positioning groove 312 forms an angle less than 90° with the length direction of the magnetic suction member 3; the distribution direction of the second positioning groove 313 is parallel to the length direction of the magnetic suction member 3. Preferably, the angle is 45°. The first positioning groove 312 is tilted to provide a clearance space for the high-voltage wiring harness 5 connected to this point, thereby ensuring the accuracy of the connection point. Among them, a second positioning groove 313 is provided on the first magnetic suction portion 32, and a first positioning groove 312 and a second positioning groove 313 are provided on the second magnetic suction portion 34.

[0045] In some embodiments, the magnetic member 3 is connected to the terminal post 2 . Specifically, an insulating layer is sandwiched between the magnetic member 3 and the terminal post 2 to provide insulation between the magnetic member 3 and the terminal post 2 .

[0046] In some embodiments, an insulating shell 1 has an insulating cavity 11; each insulating cavity 11 is provided with a group of terminal posts 2, magnetic suction parts 3 and conductive parts 4; in the width direction of the insulating cavity 11, an assembly channel for the high-voltage wire harness 5 to pass through is provided between the magnetic suction parts 3 and the side walls of the insulating cavity 11. The formation of the assembly channel reserves an accommodation space for the high-voltage wire harness 5 so that the high-voltage wire harness 5 can be stored in the insulating cavity 11.

[0047] In some embodiments, in the length direction of the insulating cavity 11 , both ends of the insulating cavity 11 are provided with threading holes 111 for the high-voltage wire harness 5 to pass through, so that the high-voltage wire harness 5 can pass through the insulating box and connect with the corresponding conductive member 4 .

[0048] Embodiment 1 of the present utility model is:

[0049] A high-voltage wire harness 5 connection protection device includes an insulating shell 1, a terminal 2, a magnetic member 3 and a conductive member 4, wherein the terminal 2 is installed in the insulating shell 1; a positioning groove 31 matching the connector 51 of the high-voltage wire harness 5 is provided on the magnetic member 3, and the positioning groove 31 is used to accommodate the connector 51 of the high-voltage wire harness 5; the conductive member 4 is arranged in the positioning groove 31, and passes through the magnetic member 3 to be electrically connected to the terminal 2; in the thickness direction of the conductive member 4, the conductive member 4 protrudes from the surface of the positioning groove 31, and the portion of the conductive member 4 protruding from the surface of the positioning groove 31 has a first thickness, and the depth of the positioning groove 31 is a second thickness; the first thickness is less than the second thickness. Wherein, the connector 51 of the high-voltage wire harness 5 is a flat connector 51. Preferably, the ratio of the first thickness to the second thickness is 0.25.

[0050] In this embodiment, one end of the positioning groove 31 has an opening 311 for communicating with the external space. The opening 311 is used for the connector 51 of the high-voltage wire harness 5 to be embedded, and the opening 311 is flush with the edge of the magnetic attraction member 3 .

[0051] In this embodiment, the magnetic attraction member 3 includes a first magnetic attraction portion 32, a connecting portion 33, and a second magnetic attraction portion 34 that are connected in sequence; in the thickness direction of the conductive member 4, the first magnetic attraction portion 32 and the second magnetic attraction portion 34 are arranged in a staggered manner; the first magnetic attraction portion 32, the connecting portion 33, and the second magnetic attraction portion 34 form a stepped structure.

[0052] In this embodiment, three positioning grooves 31 are provided, and all the positioning grooves 31 are arranged in sequence along the length direction of the magnetic attraction member 3.

[0053] In this embodiment, the positioning grooves 31 are divided into a first positioning groove 312 and a second positioning groove 313; an angle equal to 45° is formed between the distribution direction of the first positioning groove 312 and the length direction of the magnetic attraction member 3; the distribution direction of the second positioning groove 313 is parallel to the length direction of the magnetic attraction member 3.

[0054] In this embodiment, one second positioning groove 313 is provided on the first magnetic attraction portion 32, and one first positioning groove 312 and one second positioning groove 313 are provided on the second magnetic attraction portion 34, and the openings 311 of the second positioning groove 313 on the first magnetic attraction portion 32 and the openings 311 of the second positioning groove 313 on the second magnetic attraction portion 34 face in completely opposite directions.

[0055] In this embodiment, the magnetic attraction member 3 is connected to the terminal 2. Specifically, an insulating layer is interposed between the magnetic attraction member 3 and the terminal 2.

[0056] In this embodiment, the insulating housing 1 has four mutually independent insulating cavities 11; a set of terminals 2, magnetic attraction members 3, and conductive members 4 are provided in each insulating cavity 11; in the width direction of the insulating cavity 11, an assembly channel for the high-voltage wire harness 5 to pass through is provided between the magnetic attraction member 3 and the side wall of the insulating cavity 11. In the length direction of the insulating cavity 11, wire passing holes 111 for the high-voltage wire harness 5 to pass through are respectively provided at both ends of the insulating cavity 11.

[0057] The working principle of the present utility model lies in:

[0058] The joint 51 of the high-voltage wire harness 5 is embedded into the corresponding positioning groove 31 for positioning, so that the joint 51 moves to a position completely fitted with the positioning groove 31, and the fastening screw 6 is passed through the conductive member 4 and threadedly connected to the terminal 2 to complete the electrical connection.

[0059] The above are only the embodiments of the present utility model, and do not limit the patent scope of the present utility model accordingly. All equivalent transformations made by using the content of the specification and drawings of the present utility model, or directly or indirectly applied in the relevant technical fields, are equally included in the patent protection scope of the present utility model.

Claims

1. A high-voltage wire harness connection protection device, comprising an insulating housing and a terminal, wherein the terminal is installed in the insulating housing, characterized in that: Also includes magnetic attraction parts and conductive parts; The magnetic attraction member is provided with a positioning groove matching the connector of the high-voltage wire harness, and the positioning groove is used to accommodate the connector of the high-voltage wire harness; The conductive member is disposed in the positioning groove and passes through the magnetic member to be electrically connected to the terminal; In the thickness direction of the conductive member, the conductive member protrudes from the surface of the positioning groove, and the portion of the conductive member protruding from the surface of the positioning groove has a first thickness, and the depth of the positioning groove is a second thickness; The first thickness is smaller than the second thickness.

2. A high voltage wire harness connection protection device according to claim 1, characterized in that: At least one end of the positioning groove has an opening for communicating with an external space, and the opening is used for inserting a connector of a high-voltage wire harness.

3. A high-voltage wire harness connection protection device according to claim 1, characterized in that: There are at least three positioning grooves; All of the positioning grooves are arranged in sequence along the length direction of the magnetic attraction component.

4. A high-voltage wire harness connection protection device according to claim 1, characterized in that: The positioning groove is divided into a first positioning groove and a second positioning groove; The distribution direction of the first positioning grooves and the length direction of the magnetic attraction member form an angle less than 90°; The distribution direction of the second positioning grooves is parallel to the length direction of the magnetic attraction component.

5. A high-voltage wire harness connection protection device according to any one of claims 1 to 4, characterized in that: The magnetic attraction member comprises a first magnetic attraction portion, a connecting portion and a second magnetic attraction portion which are connected in sequence; In the thickness direction of the conductive member, the first magnetic attraction portion and the second magnetic attraction portion are staggered; The first magnetic attraction portion, the connecting portion and the second magnetic attraction portion form a stepped structure.

6. A high-voltage wire harness connection protection device according to claim 1, characterized in that: The magnetic attraction member is connected to the terminal post.

7. A high voltage wire harness connection protection device according to claim 1, characterized in that: The ratio of the first thickness to the second thickness is 0.1-0.

4.

8. A high voltage wire harness connection protection device according to claim 1, characterized in that: The insulating housing has an insulating cavity therein; A group of the terminal posts, the magnetic attraction member and the conductive member are arranged in each of the insulating cavities; In the width direction of the insulating cavity, an assembly channel for the high-voltage wire harness to pass through is provided between the magnetic attraction component and the side wall of the insulating cavity.

9. A high voltage wire harness connection protection device according to claim 8, characterized in that: In the length direction of the insulating cavity, two ends of the insulating cavity are respectively provided with threading holes for the high-voltage wire harness to pass through.