CN220358373U

CN220358373U - Spring contact finger for electric connection

Info

Publication number: CN220358373U
Application number: CN202322061513.0U
Authority: CN
Inventors: 孙征; 韩双玉; 李瑞利; 曹峰; 周敏; 邓李
Original assignee: Kaifeng Daqing Electric Appliance Co ltd
Current assignee: Kaifeng Daqing Electric Appliance Co ltd
Priority date: 2023-08-02
Filing date: 2023-08-02
Publication date: 2024-01-16
Anticipated expiration: 2033-08-02

Abstract

The utility model relates to the technical field of electric contact, and discloses a spring contact finger for electric connection, which comprises a moving contact and a fixed contact, wherein one end of the moving contact is inserted into the fixed contact, and a conductive spring is arranged between the moving contact and the fixed contact. The static contact of the utility model has only two parts of the conductive seat and the conductive spring, thereby greatly reducing the workload of parts and assembly, lowering the cost, simplifying the processing and mounting requirements, being more suitable for general popularization, and the inclined ring spring can transmit strong current in a small space, thereby being suitable for being used in various static or dynamic medium-high pressure environments.

Description

Spring contact finger for electric connection

Technical Field

The utility model relates to the technical field of electric contact, in particular to a spring contact finger for electric connection.

Background

In the direct-acting isolating switch, the fixed contact is mainly used for fixing and supporting the moving contact and plays a role in electric power communication. The traditional static contact adopts a closed cup-shaped structure, a channel is reserved on the end face of the static contact, which is close to the moving contact, and the other end of the static contact is completely closed.

At present, the most commonly used moving and static contacts are plum blossom contacts, so that the plum blossom contacts are more in parts and relatively complex in structure, the contact fingers are extruded or stamped, the size dispersion of the parts is large, the requirements on the skills of processing and assembling personnel are high, and the use is troublesome.

We have therefore proposed a spring finger for electrical connection in order to solve the problems set out above.

Disclosure of Invention

Technical problem to be solved

In view of the above-mentioned shortcomings of the prior art, the present utility model is directed to providing a spring contact finger for electrical connection, so as to solve the above-mentioned problems.

In order to achieve the above purpose, the utility model is realized by the following technical scheme:

the spring contact finger for electric connection comprises a moving contact and a fixed contact, wherein one end of the moving contact is inserted into the fixed contact, and a conductive spring is arranged between the moving contact and the fixed contact.

Furthermore, a plug hole matched with the movable contact is formed in one end of the fixed contact.

Furthermore, an annular clamping groove matched with the conductive spring is formed in the side wall of the plug hole, and the conductive spring is clamped in the annular clamping groove.

Preferably, the conductive spring is a canted coil spring.

Preferably, finger grooves are formed in the outer portions of the moving contact and the fixed contact.

Compared with the prior art, the utility model has the beneficial effects that:

the static contact has only two parts of the conductive seat and the conductive spring, thereby greatly reducing the workload of parts and assembly, reducing the cost, simplifying the processing and mounting requirements, being more suitable for universal popularization, and the inclined ring spring can transmit strong current in a small space, thereby being suitable for being used in various static or dynamic medium-high pressure environments. The size of the spring fingers and the independent number of spring turns make the spring adaptable to a variety of electrical contact designs, each coil will independently compensate for contact and surface variations, which allows for wider tolerances between fittings.

Drawings

FIG. 1 is a schematic view of the overall structure of a spring contact finger for electrical connection according to the present utility model;

FIG. 2 is a schematic view of a split structure of a spring contact finger for electrical connection according to the present utility model;

fig. 3 is a schematic cross-sectional view of a spring contact finger for electrical connection according to the present utility model.

In the figure: a moving contact 1, a fixed contact 2, a conductive spring 3 and a finger groove 4.

Description of the embodiments

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. It should be noted that the words "front", "back", "left", "right", "upper" and "lower" used in the following description refer to directions in the drawings, and the words "bottom" and "top", "inner" and "outer" refer to directions toward or away from, respectively, the geometric center of a particular component. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-3, the utility model provides a spring contact finger for electric connection, which comprises a moving contact 1 and a fixed contact 2, wherein one end of the fixed contact 2 is provided with a plug hole matched with the moving contact 1, one end of the moving contact 1 is plugged into the fixed contact 2, a conductive spring 3 is arranged between the moving contact 1 and the fixed contact 2, and the conductive spring 3 is preferably an oblique ring spring.

The utility model reduces the parts and assembly workload greatly, reduces the cost, simplifies the processing and installation requirements, and the inclined ring spring can transmit strong current in a small space, thereby being suitable for being used in various static or dynamic medium-high pressure environments. The size of the spring fingers and the independent number of spring turns make the spring adaptable to a variety of electrical contact designs, each coil will independently compensate for contact and surface variations, which allows for wider tolerances between fittings, multiple contact points increase electrical conductivity, and at the same time it is less useful and operates at a lower temperature, and therefore longer life.

As a preferred technical scheme of the utility model: finger grooves 4 are formed in the outer portions of the moving contact 1 and the fixed contact 2, so that assembly of workers is facilitated.

What is not described in detail in this specification is all that is known to those skilled in the art.

Although the utility model has been described in detail with reference to the foregoing embodiments, it should be noted that, unless explicitly stated and limited otherwise, the terms "disposed," "mounted," "connected," "secured," and the like are intended to be broadly interpreted as either a fixed connection or a removable connection, for example; or may be indirectly connected through an intervening medium.

The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances; it should be understood that those skilled in the art may still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features, and any modification, equivalent substitution, improvement, etc. that are within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. The spring contact finger for electric connection comprises a moving contact (1) and a fixed contact (2), and is characterized in that one end of the moving contact (1) is inserted into the fixed contact (2), and a conductive spring (3) is arranged between the moving contact (1) and the fixed contact (2).

2. The spring contact finger for electric connection according to claim 1, wherein an insertion hole matched with the movable contact (1) is formed at one end of the fixed contact (2).

3. The spring contact finger for electric connection according to claim 2, wherein the side wall of the insertion hole is provided with an annular clamping groove matched with the conductive spring (3), and the conductive spring (3) is clamped in the annular clamping groove.

4. A spring contact finger for electrical connection according to claim 3, characterized in that the conductive spring (3) is a canted coil spring.

5. The spring contact finger for electric connection according to claim 1, wherein finger grooves (4) are formed in the outer parts of the movable contact (1) and the fixed contact (2).