Electric connector and contact piece thereof

Abstract

The invention discloses an electric connector and a contact piece thereof, and the electric connector comprises a sleeve body which is formed by the winding of a single conductive wire and is providedwith an annular structure for the insertion of a pin; the manufacturing process for winding the sleeve body by utilizing the conductive wire is simple, but the structure of the sleeve body is not limited by the manufacturing process of the conductive wire, so that the sleeve body is convenient to miniaturize and can be suitable for micro electric connection. The sleeve body comprises at least twocontact parts which are connected in sequence, direct connection of the contact parts is achieved, the connecting angles of the two connecting edges of each contact part and the connecting angle between any two adjacent contact parts directly abut against a corresponding jack, other parts are prevented from being additionally arranged, contact resistance is reduced, and the electric connector canbe suitable for large-current transmission. Any contact part comprises two connecting edges, one ends of the connecting edges are connected, the connecting edges are inclined relative to the center line of the sleeve body, each connecting edge is inclined relative to the center line of the sleeve body, the connecting angle abuts against the jack, stability of retention force is guaranteed, and the plugging and unplugging service life is prolonged.

Description

technical field [0001] The invention relates to the technical field of electrical connection, in particular to an electrical connector and a contact piece thereof. Background technique [0002] The electrical connector is a basic device widely used in electrical equipment. The quality of the contacts set in the electrical connector is a key factor affecting the reliability of the electrical connector connection, and the quality of the contacts is related to its structure, so optimize the structure of the contacts appears to be particularly necessary. [0003] The contacts of the existing electrical connector mainly include two types of wire spring sockets and crown spring sockets. [0004] The wire spring socket utilizes a plurality of elastic metal wires arranged in a single-leaf rotary hyperboloid to evenly wrap around the outer peripheral surface of the pin to form an envelope contact. Each elastic metal wire is set separately, so that a single elastic metal wire is very...

AI Technical Summary

Problems solved by technology

[0004] The wire spring socket utilizes a plurality of elastic metal wires arranged in a single-leaf rotary hyperboloid to evenly wrap around the outer peripheral surface of the pin to form an envelope contact. Each elastic metal wire is set separately, so that a single elastic metal wire is very easy to Damage or breakage due to frequent insertion and removal of pins, resulting in weakened holding force between contacts and pins, affecting plugging life; at the same time, the contact resistance between a single elastic metal wire and pins is too large, resulting in contact points The temperature rise is too fast, it is difficult to adapt to large current transmission

In addition, the processing technology of the wire spring socket is relatively high, and the structure is relatively complicated, so it is difficult to adapt to the micro electrical connection.

[0005] The crown spring socket consists of several elastic metal sheets divided by stamping process. All the elastic metal sheets are evenly distributed in a ring shape and the middle sections are bent and gathered towards the center line. Interference sleeves are used between the pins and the crown spring socket. Then, after repeated insertion and extraction of the pin, the holding force at the single contact point formed by a single elastic metal sheet and the pin decreases, which affects the plug-in life

The surface of the elastic metal sheet is very easy to produce burrs due to the stamping process, causing the burrs to offset the inserted pins, making the contact resistance too large, and it is also difficult to adapt to large current transmission

The structure of the crown spring socket is limited by the stamping process, making it also difficult to adapt to miniature electrical connections

[0006] It can be seen that the contacts of existing electrical connectors have relatively low plug-in and pull-out life, and are difficult to adapt to large current transmission and miniature electrical connections. These problems are technical problems to be solved by those skilled in the art

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