CN213692416U

CN213692416U - Composite jack contact element with elastic wrap spring

Info

Publication number: CN213692416U
Application number: CN202022694884.9U
Authority: CN
Inventors: 冉茂涛; 陈昱
Original assignee: Shenzhen Jinyongfeng Precision Technology Co ltd
Current assignee: Shenzhen Jinyongfeng Precision Technology Co ltd
Priority date: 2020-11-20
Filing date: 2020-11-20
Publication date: 2021-07-13
Anticipated expiration: 2030-11-20

Abstract

The utility model discloses a composite jack contact element with an elastic wrap spring, which comprises a pipe body, a jack arranged at one end of the pipe body, and a leaf spring or a crown spring positioned in the pipe body, wherein the outer side of the pipe body is provided with a ring groove which is positioned at one end of the pipe body close to the jack; the annular groove is embedded with an elastic wrap spring, and the outer wall of the leaf spring jack is provided with an elastic structure, so that the elastic structure of the composite jack can be more firm, and the defects of insufficient stability and durability of a common leaf spring are effectively overcome.

Description

Composite jack contact element with elastic wrap spring

Technical Field

The utility model relates to a take compound jack contact technical field of elasticity package spring especially relates to a take compound jack contact of elasticity package spring.

Background

The jack contact element of the existing power supply electric connector mainly adopts a leaf spring, a crown spring and a composite structure thereof, wherein the contact reliability of the crown spring jack is higher, but the assembly structure is more complex, the cost is higher, and the jack contact element is generally applied to occasions with higher requirements; the leaf spring structure jack is widely applied to high-voltage and low-voltage power interfaces of equipment due to large current carrying capacity, simple structure and low cost.

The conventional process of the leaf spring jack is stamping forming or machining forming, wherein the stamping forming is generally used in the occasions with low pressure and low environmental stress, and the machining (turning and milling) forming can be used in the occasions with high pressure, large current and high environmental stress. The common leaf spring jack formed by machining (turning and milling) generally adopts copper alloy (wire or rod) turning outer-shape inner holes, slotting and closing-up forming, and is used as an electric connector jack contact element after being electroplated.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, one of the purposes of the utility model is to provide a take compound jack contact of elasticity package spring increases elastic structure at leaf spring jack outer wall for compound jack elastic structure is more can be solid, has effectively solved the stability of ordinary leaf spring and the not enough disadvantage of durability.

The utility model discloses an one of the purpose adopts following technical scheme to realize: a composite jack contact element with an elastic wrap spring comprises a pipe body, a jack arranged at one end of the pipe body, and a leaf spring or a crown spring positioned in the pipe body, wherein an annular groove is formed in the outer side of the pipe body and is positioned at one end, close to the jack, of the pipe body;

and an elastic wrap spring is embedded in the annular groove.

Furthermore, the elastic wrap spring comprises a spring body in an annular structure and an opening formed in the side face of the spring body, and the opening extends from one end of the spring body to the other end of the spring body.

Further, the cross section of the opening is in an ㄣ -shaped structure.

Furthermore, the outer side of the pipe body is of a round table-shaped structure, and the cross section of the bottom surface of the annular groove is parallel to the cross section of the outer side of the pipe body.

Further, the axial length of the elastic wrap spring is smaller than that of the annular groove.

Compared with the prior art, the beneficial effects of the utility model reside in that:

1. the advantages of the common leaf spring, namely large effective contact length, large bearing current, simple structure and low cost, are kept, the defects of insufficient stability and durability of the common leaf spring are effectively solved, and the service life and the reliability of the common leaf spring are improved. The composite jack structure leaves a ring groove with proper size on the outer wall of a leaf spring jack, and the ring groove is formed by slotting and closing up, and is used as a part of a composite jack contact element for standby after electroplating, an elastic wrap spring is sleeved into the outer wall of the jack contact element through a tool or special equipment and is sent into the ring groove, the size and the insertion and extraction force are stabilized through a pre-insertion process, and the elastic wrap spring is used as the jack contact element of a connector after natural aging;

2. the device can be popularized and applied to occasions needing electric energy transmission connection, such as new energy automobiles, ship power equipment, photovoltaic electric energy equipment, nuclear energy equipment, communication base station power equipment and the like.

The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the present invention may be implemented according to the content of the description, and in order to make the above and other objects, features, and advantages of the present invention more obvious and understandable, the following preferred embodiments are described in detail with reference to the accompanying drawings.

Drawings

FIG. 1 is a schematic structural diagram of the present embodiment;

FIG. 2 is a schematic view of the structure of the elastic wrap spring in the present embodiment;

fig. 3 is a sectional view of the pipe body in this embodiment.

In the figure: 1. a pipe body; 2. a jack; 3. an annular groove; 4. an elastic wrap spring; 5. and (4) opening.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that the embodiments or technical features described below can be arbitrarily combined to form a new embodiment without conflict.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1 to 3, a composite jack 2 contact (applicable to BNC connector) with an elastic wrap spring 4 includes a tube 1, a jack 2 disposed at one end of the tube 1, and a leaf spring or a crown spring disposed in the tube 1. in order to improve the durability and stability of the embodiment, an annular groove 3 is disposed outside the tube 1, the annular groove 3 is disposed at one end of the tube 1 close to the jack 2, i.e., one side of an embedded leaf spring, and is realized by embedding the elastic wrap spring 4 in the annular groove 3.

The design of the elastic wrap spring 4 comprises a spring body in an annular structure and an opening 5 arranged on the side surface of the spring body, wherein the opening 5 extends from one end of the spring body to the other end of the spring body. The spring body has the effect of radially expanding from inside to outside, and can be restored through the characteristic that the metal material of the spring body has elasticity.

In order to design the opening 5 and ensure the structural strength of the elastic wrap spring 4 and control the elastic force, the opening 5 is designed to have a structure with a section shaped like the letter "ㄣ" in the embodiment, so that the wrapping performance is strong.

Because the outside of body 1 is round platform column structure, consequently, the cross section of this embodiment annular groove 3 bottom surface is parallel with the cross section in the body 1 outside, when convenient the assembly, has also guaranteed the inseparable of structure two department complex.

And the axial length of the elastic wrap spring 4 is less than that of the annular groove 3, so that an axial space and a gap are reserved for the elastic wrap spring 4 during installation and use, the elastic wrap spring is convenient to sleeve, and a sufficient radial elastic deformation space is provided.

In the embodiment, the elastic wrap spring 4 is attached to the inner wall of the annular groove 3 of the tube body 1 by the elasticity of the elastic wrap spring 4 to form elastic contact, and the groove width limits the elastic contact to be flexible and movable in a limited axial space; when the contact pin is pulled out, the elastic wrap spring 4 and the tube body 1 recover to the original shape and size under the action of elasticity.

The elastic wrap spring 4 can be formed by punching a beryllium bronze material or a stainless steel material.

From figure 1, because the structure in the middle of opening 5 is parallel relatively with two terminal surfaces of elasticity package spring 4, consequently when being strutted or the crimple by elasticity, can keep self shape, open-ended both sides wall can keep relative spacing, like conflict, laminating, when electroplating or vibration dish goes up automatic feeding like this, the structure of this department can not twine together, influences normal production processing or use.

The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention cannot be limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are all within the protection scope of the present invention.

Claims

1. The utility model provides a take compound jack contact of elasticity package spring, includes the body, set up in the jack of body one end and be located body inner leaf spring or guan reed, its characterized in that: the outer side of the pipe body is provided with an annular groove, and the annular groove is positioned at one end of the pipe body close to the jack;

and an elastic wrap spring is embedded in the annular groove.

2. The sprung composite receptacle contact of claim 1, wherein: the elastic wrap spring comprises a spring body in an annular structure and an opening formed in the side face of the spring body, and the opening extends from one end of the spring body to the other end of the spring body.

3. The sprung composite receptacle contact of claim 2, wherein: the cross section of the opening is in a structure of ㄣ.

4. The sprung composite receptacle contact of claim 2, wherein: the outer side of the pipe body is of a round table-shaped structure, and the cross section of the bottom surface of the annular groove is parallel to the cross section of the outer side of the pipe body.

5. A sprung composite receptacle contact according to claim 3, wherein: the axial length of the elastic wrap spring is smaller than that of the annular groove.