High-voltage interlocking module of magnetic structure

Abstract

The utility model discloses a high-voltage interlocking module of a magnetic structure, which comprises a loop terminal assembly, a first magnet, a second magnet and a shell, the first magnet and the second magnet are arranged in the shell in a mutual exclusion mode, the loop terminal assembly is provided with a third magnet, and the third magnet is arranged in the shell. The loop terminal assembly is arranged in the shell, and the third magnet and the second magnet are arranged in a mutual exclusion mode. According to the utility model, the principle that like poles of the magnets repel each other is utilized, so that the second magnet can move in the shell, the repulsive force among the plurality of magnets drives the second magnet to be contacted with the male pin at a specific position and ensures reasonable contact force, the structure is simpler, and the problems of deformation and the like are not easy to occur after long-term work.

Description

Technical Field

[0001] The utility model belongs to the technical field of electrical connection, and in particular relates to a high-voltage interlocking module with a magnetic structure. Background Art

[0002] High Voltage Interlock (HVIL) is a safety design method that uses low-voltage signals to monitor the integrity of high-voltage circuits. In theory, the low-voltage monitoring circuit connects before the high-voltage circuit and disconnects after it, maintaining a necessary lead time. The duration can be determined based on project specifics, such as 150ms. The specific implementation of HVIL may vary from project to project. The monitoring target is electrical interface components such as high-voltage connectors that require manual operation to connect or disconnect the circuit.

[0003] Existing high-voltage interlock modules, such as those in patent CN202310345286.6, offer control switch functions. Elastic members allow the contact block to extend and retract within a limited length. The force differential between the mechanical key and the elastic member (i.e., the varying spring rates between the individual springs) forces the contact block to contact the male pin at a predetermined position while maintaining a reasonable contact force. However, existing high-voltage interlock modules have drawbacks: The elastic member can become loose over time, potentially affecting proper operation of the interlock module.

[0004] The information disclosed in this background technology section is only intended to increase the understanding of the overall background of the present invention, and should not be regarded as an admission or any form of suggestion that the information constitutes the prior art already known to those skilled in the art. Utility Model Content

[0005] The purpose of the utility model is to provide a high-voltage interlocking module with a magnetic structure, so as to overcome the defects in the above-mentioned prior art.

[0006] In order to achieve the above-mentioned purpose, the utility model provides a high-voltage interlocking module with a magnetic structure, including a loop terminal assembly, a first magnet, a second magnet and a shell, the first magnet and the second magnet are arranged in a mutually exclusive manner in the shell, and a third magnet is provided on the loop terminal assembly. The loop terminal assembly is arranged in the shell and the third magnet and the second magnet are arranged in a mutually exclusive manner.

[0007] Furthermore, preferably, a pair of positioning posts are provided in the housing, the first magnet is provided with a pair of first blind holes matching the positioning posts, and the second magnet is provided with a pair of second blind holes matching the first blind holes.

[0008] Further, preferably, the loop terminal assembly includes a terminal base and a loop terminal arranged on the terminal base, the third magnet is arranged on the terminal base, and the terminal base is arranged in the housing.

[0009] Furthermore, preferably, the loop terminal includes a pair of male pins, the terminal base is provided with a pair of through holes, the pair of male pins are located in the pair of through holes, and both ends of the male pins extend outside the terminal base respectively.

[0010] Further, preferably, one end of the pair of male needles corresponds to the second blind hole.

[0011] Further, preferably, the third magnet is arranged between a pair of through holes.

[0012] Furthermore, preferably, both ends of the first blind hole and the second blind hole are respectively provided with chamfered structures.

[0013] Furthermore, preferably, the loop terminal assembly is movably connected to the housing.

[0014] Furthermore, preferably, the end of the male pin away from the housing is connected to the cable.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The utility model utilizes the principle that like poles of magnets repel each other, so that the second magnet can move within the shell, and the repulsive force between the multiple magnets drives the second magnet to contact the male needle at a specific position and ensures a reasonable contact force. The structure is simpler and is not prone to deformation and other problems during long-term operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is an exploded schematic diagram of a high-voltage interlocking module with a magnetic structure according to the present invention;

[0018] Figure 2 This is a cross-sectional view of a high-voltage interlocking module with a magnetic structure according to the present invention;

[0019] Figure 3 It is a partially enlarged schematic diagram of a cross-sectional view of a high-voltage interlocking module with a magnetic structure according to the present invention;

[0020] Figure numerals: 1-loop terminal assembly, 101-terminal base, 102-male pin, 2-first magnet, 201-first blind hole, 3-second magnet, 301-second blind hole, 4-housing, 401-positioning column, 5-third magnet, 6-cable. DETAILED DESCRIPTION

[0021] The specific implementation methods of the present invention are described in detail below, but it should be understood that the protection scope of the present invention is not limited by the specific implementation methods.

[0022] The following is a brief summary of one or more aspects to provide a basic understanding of these aspects. This summary is not an exhaustive overview of all conceivable aspects and is neither intended to identify key or critical elements of all aspects nor to define the scope of any or all aspects. Its sole purpose is to present some concepts of one or more aspects in a simplified form as a prelude to the more detailed description that will be provided later.

[0023] like Figure 1-3 As shown, a high-voltage interlocking module with a magnetic structure includes a loop terminal assembly 1, a first magnet 2, a second magnet 3 and a shell 4, wherein the first magnet 2 and the second magnet 3 are arranged in a mutually exclusive manner in the shell 4, and a third magnet 5 is provided on the loop terminal assembly 1. The loop terminal assembly 1 is arranged in the shell 4 and the third magnet 5 and the second magnet 3 are arranged in a mutually exclusive manner.

[0024] In this embodiment, as a specific solution, the S pole of the second magnet 3 is in close contact with the S pole of the first magnet 2 , and the N pole of the third magnet 5 is in close contact with the N pole of the second magnet.

[0025] In this embodiment, as a specific solution, a pair of positioning posts 401 are provided in the housing 4, the first magnet 2 is provided with a pair of first blind holes 201 matching the positioning posts 401, and the second magnet 3 is provided with a pair of second blind holes 301 matching the first blind holes 201; the positioning posts 401 pass through the first blind holes 201 to position the first magnet 2.

[0026] In this embodiment, as a specific solution, the loop terminal assembly 1 includes a terminal base 101 and a loop terminal arranged on the terminal base 101 , the third magnet 5 is arranged on the terminal base 101 , and the terminal base 101 is arranged in the housing 4 .

[0027] In this embodiment, as a more specific solution, the loop terminal includes a pair of male pins 102, and the terminal base 101 is provided with a pair of through holes. The pair of male pins 102 are located in the pair of through holes, and both ends of the male pins 102 extend outside the terminal base 101 respectively.

[0028] In this embodiment, as a more specific solution, one end of the pair of male needles 102 corresponds to the second blind hole 301 .

[0029] In this embodiment, as a specific solution, the third magnet 5 is disposed between a pair of through holes, that is, located in the middle of a side of the terminal base 101 facing the second magnet 3 .

[0030] In this embodiment, as a specific solution, both ends of the first blind hole 201 and the second blind hole 301 are respectively provided with chamfered structures.

[0031] In this embodiment, as a specific solution, the loop terminal assembly 1 is movably connected to the housing 4 .

[0032] In this embodiment, as a specific solution, the end of the male pin 102 away from the housing 4 is connected to the cable 6 .

[0033] The working principle of the present invention is as follows: first, the male pin 102 connected to the cable 6 is assembled into the through hole of the terminal base 101, the first magnet 2 is installed in the housing 4, and the first magnet 2 is positioned by the positioning column 401. Then, the second magnet 3 and the terminal base 101 are installed in the housing in sequence, wherein the south pole of the first magnet 2 faces the south pole of the second magnet 3, and the north pole of the second magnet 3 faces the north pole of the third magnet 5 on the terminal base 101.

[0034] In the initial state, the male needle 102 and the second magnet 3 are separated. When the housing 4 is pressurized as the connector is engaged, the repulsion between the first magnet 2 and the second magnet 3 causes the second magnet 3 to move toward the male needle 102 and contact the male needle 102. The housing 4 continues to be pressurized to ensure the contact force between the second magnet 3 and the male needle 102. The function of the third magnet 5 is to keep the male needle 102 and the second magnet 3 in a non-contact state when the housing 4 is not under force.

[0035] The utility model utilizes the principle that like poles of magnets repel each other, so that the second magnet 3 can move within the housing 4. The repulsive force between the multiple magnets drives the second magnet 3 to contact the male needle 102 at a specific position and ensures a reasonable contact force. The structure is simpler and is less likely to cause problems such as deformation during long-term operation.

[0036] The foregoing descriptions of specific exemplary embodiments of the present invention are for purposes of illustration and description. These descriptions are not intended to limit the present invention to the precise forms disclosed, and it is apparent that many modifications and variations are possible in light of the foregoing teachings. The exemplary embodiments have been selected and described for the purpose of explaining the specific principles of the present invention and their practical application, thereby enabling those skilled in the art to realize and utilize a variety of exemplary embodiments of the present invention and various options and variations. The scope of the present invention is intended to be defined by the claims and their equivalents.

Claims

1. A high-voltage interlocking module with a magnetic structure, characterized by: The circuit terminal assembly comprises a first magnet, a second magnet and a shell. The first magnet and the second magnet are arranged in a mutually exclusive manner in the shell. The circuit terminal assembly is provided with a third magnet. The circuit terminal assembly is arranged in the shell and the third magnet and the second magnet are arranged in a mutually exclusive manner.

2. The high-voltage interlocking module with a magnetic structure according to claim 1, characterized in that: A pair of positioning posts are provided in the shell, the first magnet is provided with a pair of first blind holes matching the positioning posts, and the second magnet is provided with a pair of second blind holes matching the first blind holes.

3. The high-voltage interlocking module with a magnetic structure according to claim 2, characterized in that: The loop terminal assembly includes a terminal base and a loop terminal arranged on the terminal base. The third magnet is arranged on the terminal base, and the terminal base is arranged in a housing.

4. The high-voltage interlocking module with a magnetic structure according to claim 3, characterized in that: The loop terminal includes a pair of male pins. The terminal base is provided with a pair of through holes. The pair of male pins are located in the pair of through holes, and both ends of the male pins extend out of the terminal base respectively.

5. The high-voltage interlocking module with a magnetic structure according to claim 4, characterized in that: One end of the pair of male needles corresponds to the second blind hole.

6. The high-voltage interlocking module with a magnetic structure according to claim 4, characterized in that: The third magnet is disposed between a pair of through holes.

7. The high-voltage interlocking module with a magnetic structure according to claim 2, characterized in that: Both ends of the first blind hole and the second blind hole are respectively provided with chamfered structures.

8. The high-voltage interlocking module with a magnetic structure according to claim 1, characterized in that: The loop terminal assembly is movably connected to the shell.

9. The high-voltage interlocking module with a magnetic structure according to claim 4, characterized in that: The end of the male pin away from the housing is connected to the cable.

Images