CN202013952U

CN202013952U - Pin for main line of current shunting

Info

Publication number: CN202013952U
Application number: CN2011200764816U
Authority: CN
Inventors: 臧一锋
Original assignee: SHENZHEN ZHENQIN ELECTRONIC TECHNOLOGY CO LTD
Current assignee: SHENZHEN ZHENQIN ELECTRONIC TECHNOLOGY CO LTD
Priority date: 2011-03-22
Filing date: 2011-03-22
Publication date: 2011-10-19
Anticipated expiration: 2021-03-22

Abstract

The utility model relates to a pin for a main line of current shunting, which comprises a cylindrical pin body (1) and a base (2). The bottom of the pin body (1) is connected to the base (2), and a plurality of equilateral pyramid-shaped or semi-spherical annular sawtooth-like protuberances (4) are integrally formed on the side where the base (2) and the pin body (1) are connected. The plurality of annular sawtooth-like protuberances (4) are distributed in a circle around a central axis (8) of the pin and closely connected and next to each other, and no gap exists at the joint. The joint between the bottom of the pin body (1) and the base (2) is recessed inwards, and the radius of a cross section of the joint is smaller than that of the pin body (1). An annular recessed zone (7) is formed between the plurality of annular sawtooth-like protuberances (6) and the recessed joint. Due to the fact that a gap caused by scratching of barbs is removed, the pin and a copper plate are enabled to be in seamless riveting, mechanical and electrical properties of the pin are enhanced, and reliability of connection between the pin and the copper plate is improved.

Description

Electric current shunting main line contact pin

Technical field

The utility model relates to a kind of electric current shunting main line contact pin, belongs to electronic information field.

Background technology

Electric current shunting main line is the tendency solution that present information electron trade solves big electric current, the distribution of high reliability electric current.The contact pin that electric current shunting main line is used is a critical component of electric current being shunted connection, and exigent tightness can guarantee that like this product contact pin in long use keeps good mechanical to contact with electricity with copper coin.Present contact pin adopts the design of projection hangnail type, as shown in Figure 1, contact pin has hangnail 3 by second end place design of needle body 1, base 2 and needle body 1, the thorn point direction of hangnail 3 down, therefore the contact-making surface of copper coin 4 inwalls is lived by the thorn pinnacle of hangnail 3 in the back in being riveted to copper coin 4, thereby prevents that contact pin from withdrawing from outward.But this contact pin has corresponding drawback, and the contact surface at contact pin and copper produces cut in the process of riveted joint at first easily, and next causes contact-making surface empty the connection to occur after contact pin inserts as shown in Figure 1, is unfavorable for the fastening of contact pin and electrically contacts.Especially the phenomenon that occurs the loosening and poor electric contact of contact pin in the long-term use of product easily.

The utility model content

The purpose of utility model has provided a kind of electric current shunting main line contact pin, and traditional contact pin is transformed, and changes hangnail of the prior art into upright circular saw island, effectively solves problems such as hangnail scratch copper sheet and generation space.

In order to reach above-mentioned utility model purpose, the technical scheme that the utility model adopted is:

A kind of electric current shunting main line contact pin comprises cylinder bodily form needle body and base, and needle body is connected to each other in bottom and base, and the one side that is connected with needle body at base is one-body molded a plurality of equilateral pyramid shapes or hemispherical circular saw island.

Preferably, above-mentioned a plurality of circular saws island is with the circular distribution in the axis of contact pin, adjacent each other connection, junction tight.

Preferably, the junction between above-mentioned needle body bottom and the described base caves inward, and junction cross section radius is less than the cross section radius of needle body.

Preferably, form the annular recess band between the junction of above-mentioned a plurality of circular saws island and described depression.

Compared with prior art, the contact pin that the utility model provides has been removed because the space that the scratch of hangnail causes makes contact pin and copper coin produce seamless riveted, has improved the mechanics and the electric property of contact pin, has increased the reliability that contact pin is connected with copper coin.

Description of drawings

Fig. 1 is the prior art structural representation;

Fig. 2 uses schematic diagram for prior art;

Fig. 3 is the utility model structural representation;

Fig. 4 uses schematic diagram for the utility model.

Reference numeral: 1-needle body; The 2-base; The 3-hangnail; The 4-copper coin; The 5-space; 6-circular saw island; The 7-hollow zone; The 8-axis.

Embodiment

Understand and enforcement the utility model for the ease of those of ordinary skills, the utility model is described in further detail below in conjunction with the drawings and the specific embodiments.

As shown in Figure 3, the electric current shunting main line contact pin that the utility model provides, comprise cylinder bodily form needle body 1 and base 2, needle body 1 is connected to each other in bottom and base 2, and the one side that is connected with needle body 1 at base 2 is one-body molded a plurality of equilateral pyramid shapes or hemispherical circular saw island 4.A plurality of circular saws island 4 is with the axis 8 circular distributions of contact pin, adjacent each other connection, junction tight.Junction between needle body 1 bottom and the described base 2 caves inward, and junction cross section radius is less than the cross section radius of needle body 1.Form annular recess band 7 between the junction of a plurality of circular saws island 6 and described depression.

Compare with prior art such as Fig. 1 and 2, the contact pin that the utility model provides has at first removed hangnail 3, has increased circular saw island 4 and hollow zone 5.In concrete use, as shown in Figure 4, circular saw island 4 embeds in the copper coin 2 in the process that presses, fixing plug pin can not rotate it, secondly, and when circular saw island 4 enters in the copper coin 2, can push copper coin, make copper towards the place distortion of having vacant position, will fill hollow zone 3 very naturally like this, make whole contact pin and copper coin the tight riveted occur.The effect of hollow zone is fixing plug pin, makes it produce displacement along self long axis direction.

The contact pin that the utility model provides, traditional contact pin is improved, removed hangnail, increased the circular saw island that tip is directed upwardly, and between the root of sawtooth island and contact pin main body, be formed with hollow zone, insert in the process of copper sheet in reality, filled in hollow zone by the copper sheet part of circular saw island pointed nose extruding, thereby reach the purpose of fixedly inserting and can not form space and scratch copper sheet.

The above, only be in order to concrete case study on implementation of the present utility model to be described, but be not in order to limit practical range of the present utility model, such as those skilled in the art must be covered by the scope of the utility model claim not breaking away from all equivalence changes of being finished under indicated spirit of the utility model and the principle or modifying.

Claims

1. an electric current is shunted the main line contact pin, comprise cylinder bodily form needle body (1) and base (2), needle body (1) is connected to each other in bottom and base (2), it is characterized in that: the one side that is connected with needle body (1) at base (2) is one-body molded a plurality of equilateral pyramid shapes or hemispherical circular saw island (4).

2. electric current shunting main line contact pin as claimed in claim 1, it is characterized in that: described a plurality of circular saws islands (4) are with the circular distribution in axis (8) of contact pin, adjacent each other connection, junction tight.

3. electric current shunting main line contact pin as claimed in claim 1 or 2, it is characterized in that: the junction between described needle body (1) bottom and the described base (2) caves inward, and junction cross section radius is less than the cross section radius of needle body (1).

4. electric current shunting main line contact pin as claimed in claim 3 is characterized in that: form annular recess band (7) between the junction of described a plurality of circular saws islands (6) and described depression.