CN212084766U

CN212084766U - Improved contact resistor

Info

Publication number: CN212084766U
Application number: CN202021154727.2U
Authority: CN
Inventors: 张雷
Original assignee: Ruian Nanjing Electric Ltd By Share Ltd
Current assignee: Ruian Nanjing Electric Ltd By Share Ltd
Priority date: 2020-06-20
Filing date: 2020-06-20
Publication date: 2020-12-04
Anticipated expiration: 2030-06-20

Abstract

The utility model discloses an improved contact resistance, which comprises a male terminal and a female terminal which are mutually matched, wherein the male terminal comprises an axis body, the lower end of the axis body is a male terminal shaft, a plurality of groups of bushings are sleeved on the male terminal shaft, the bushing positioned at the lowest end is fixed through an insulating cap, and two adjacent bushings are positioned through a snap ring; and a plurality of concave parts and a plurality of convex parts are uniformly arranged on each group of the bushings, the concave parts and the convex parts are arranged at intervals, and when the male terminal is matched with the female terminal, the convex parts on the male terminal are in elastic surface contact with the inner side wall of the female terminal. The utility model discloses a bush on the male terminal realizes and female terminal's inside wall elastic surface contact, and male terminal is less with female terminal cooperation plug power, and male terminal easily processes, and product simple structure can realize exchanging with like product on the market.

Description

Improved contact resistor

Technical Field

The utility model relates to a resistance technical field, more specifically say, in particular to improved generation contact resistance.

Background

The improved contact resistor generally includes a male terminal and a female terminal, and the conduction is realized by inserting the male terminal into the female terminal. The problems with the current improved contact resistance are: 1. the male terminal and the female terminal have larger matching insertion force; 2. the male terminal has a complex structure and is not easy to process. For this reason, there is a need to develop an improved contact resistance.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an improved generation contact resistance to overcome the defect that prior art exists.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

an improved contact resistor comprises a male terminal and a female terminal which are matched with each other, wherein the male terminal comprises a shaft body, the lower end of the shaft body is a male terminal shaft, a plurality of groups of bushings are sleeved on the male terminal shaft, the bushing positioned at the lowermost end is fixed through an insulating cap, and two adjacent bushings are positioned through snap rings; and a plurality of concave parts and a plurality of convex parts are uniformly arranged on each group of the bushings, the concave parts and the convex parts are arranged at intervals, and when the male terminal is matched with the female terminal, the convex parts on the male terminal are in elastic surface contact with the inner side wall of the female terminal.

Furthermore, the bush adopts copper material to bend and form a plurality of recesses and a plurality of convex parts, and the joint of the bush is welded or fixed through a buckle.

Furthermore, steps are arranged on two side faces of the upper end of the shaft body, and through holes are formed in the steps.

Furthermore, a plurality of groups of clamping grooves are arranged on the male terminal shaft and matched with the clamping rings.

Further, the diameter of the male terminal shaft is smaller than that of the shaft body.

Further, the flexibility of the multiple groups of bushings of the male terminal is increased or decreased.

Compared with the prior art, the utility model has the advantages of: the utility model discloses an improved generation contact resistance, through the bush on the male terminal realize with the inside wall elastic surface contact of female terminal, male terminal is less with female terminal cooperation plug power, male terminal easily processes, product simple structure can realize exchanging with like product on the market.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a block diagram of an improved contact resistor according to the present invention;

fig. 2 is an exploded view of a male terminal in the improved contact resistor of the present invention.

Fig. 3 is a structural diagram of a bushing in an improved contact resistor according to the present invention.

In the figure: 1 male terminal, 2 female terminal, 10 shaft body, 11 male terminal shaft, 12 steps, 13 clamping grooves, 14 bushings, 15 buckles, 16 clamping rings, 17 insulating caps, 18 through holes, 141 convex parts, 142 concave parts and 143 connecting parts.

Detailed Description

Further embodiments of the present invention will be described in detail below with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making more clear and definite definitions of the protection scope of the present invention.

Referring to fig. 1-3, the utility model provides an improved generation contact resistance, including the public terminal 1 and the female terminal 2 of mutually supporting, public terminal 1 includes axis body 10, and the lower extreme of axis body 10 is public terminal axle 11, and public terminal axle 11 goes up the cover and is equipped with multiunit bush 14, and it is fixed that the bush that is located the bottommost passes through insulating cap 17, fixes a position through snap ring 16 between two adjacent bushes 14.

In this embodiment, a plurality of concave portions 141 and a plurality of convex portions 142 are uniformly arranged on each set of bushings 14, the concave portions 141 and the convex portions 142 are arranged at intervals, and when the male terminal 1 is mated with the female terminal 2, the convex portions 142 on the male terminal 1 and the inner side wall of the female terminal 2 form elastic surface contact. The number of the concave portions 141 and the convex portions 142 may be set according to the use requirement.

In this embodiment, the bushing 14 is made of a copper material (e.g., a silver-plated beryllium copper tape) with high elasticity and high conductivity by bending and forming a plurality of concave portions 141 and a plurality of convex portions 142, and is welded or fixed by a fastener 15 at a joint 143 of the bushing 14.

For example, one method of machining bushing 14: the edge of the pre-plated silver beryllium copper strip is beveled, then bent and formed, finally the joint is welded after being wrapped with a circle, and the joint 143 is fixed by the buckle 15 after being installed on the male terminal shaft 11.

In this embodiment, steps 12 are disposed on two side surfaces of the upper end of the shaft 10, and through holes 18 are disposed on the steps 12.

In this embodiment, a plurality of sets of slots 13 are disposed on the male terminal shaft 11, and the slots 13 are matched with the snap ring 16, so that the position of the bushing 14 on the male terminal shaft 11 is fixed.

In this embodiment, the diameter of the male terminal shaft 11 is smaller than that of the shaft body 10, and the inner side of the innermost bushing 14 may abut against a step between the male terminal shaft 11 and the shaft body 10.

The multiple groups of bushings 14 of the male terminal 1 can be flexibly increased and decreased to adapt to different overcurrent capacities.

The utility model discloses an improved generation contact resistance's processing method does: the main body part of the shaft body 10 is formed through machining, then the machined bushing 14 is preassembled on the male terminal shaft 11 and is positioned through the snap ring 16 and the insulating cap 17, the male terminal 1 is installed, and finally the male terminal 1 is inserted into the female terminal 2.

The utility model discloses a bush on the male terminal realizes and female terminal's inside wall elastic surface contact, and male terminal is less with female terminal cooperation plug power, and male terminal easily processes, and product simple structure can realize exchanging with like product on the market.

Although the embodiments of the present invention have been described with reference to the accompanying drawings, various changes and modifications can be made by the owner within the scope of the appended claims, and the protection scope of the present invention should not be exceeded by the claims.

Claims

1. The utility model provides an improved generation contact resistance, includes male terminal and the female terminal of mutually supporting, its characterized in that: the male terminal comprises a shaft body, a male terminal shaft is arranged at the lower end of the shaft body, a plurality of groups of bushings are sleeved on the male terminal shaft, the bushing positioned at the lowermost end is fixed through an insulating cap, and two adjacent bushings are positioned through clamping rings; and a plurality of concave parts and a plurality of convex parts are uniformly arranged on each group of the bushings, the concave parts and the convex parts are arranged at intervals, and when the male terminal is matched with the female terminal, the convex parts on the male terminal are in elastic surface contact with the inner side wall of the female terminal.

2. The improved contact resistance of claim 1, wherein: the bushing is formed by bending a plurality of concave parts and a plurality of convex parts by a copper material, and the joint of the bushing is welded or fixed by a buckle.

3. The improved contact resistance of claim 1, wherein: the two side surfaces of the upper end of the shaft body are provided with steps, and through holes are formed in the steps.

4. The improved contact resistance of claim 1, wherein: and a plurality of groups of clamping grooves are arranged on the male terminal shaft and matched with the clamping rings.

5. The improved contact resistance of claim 1, wherein: the diameter of the male terminal shaft is smaller than that of the shaft body.

6. The improved contact resistance of claim 1, wherein: and the flexibility of the multiple groups of bushings of the male terminal is increased or decreased.