Contact piece and connector

Abstract

The invention provides a contact piece and a connector. The contact piece comprises a body, two circles of supporting thorns are arranged on the outer wall of the body at intervals, the supporting thorns surround the outer wall of the body by a circle to form a complete and continuous whole, and when the contact piece is installed in a base of the connector, the supporting thorns are in elastic interference fit with the base. The contact piece and the connector have a certain effect of preventing radial rotation of the contact piece, have a function of blocking flow of an organic solvent, protect a butt joint end from being polluted, and ensure reliability of electric connection.

Description

technical field [0001] The invention belongs to the technical field of connectors, and in particular relates to a contact piece and a connector. Background technique [0002] Electrical connectors are widely used in aviation, aerospace and other fields as necessary components for inter-connection and internal interconnection of model equipment. With the continuous improvement of the reliability of space model applications, the design of connectors is low-cost and resistant to organic solvents during use. Pollution, vibration and shock resistance and other performance requirements also put forward higher requirements, requiring connector elastic contacts to achieve simplified structure, light insertion and withdrawal force, and easy and reliable assembly and use. In the prior art, the elastic socket contact often adopts the structure of protective tube, pin and contact ring. For example, the Chinese patent with publication number CN109149206A provides a miniaturized crown spr...

AI Technical Summary

Problems solved by technology

In the prior art, the elastic socket contact often adopts the structure of protective tube, pin and contact ring. For example, the Chinese patent with publication number CN109149206A provides a miniaturized crown spring type socket assembly, including protective tube, The pin and the crown spring contact ring, the contact ring is installed in the protective tube, the pin is set on the rear end of the protective tube and the contact ring, the protective tube and the pin are assembled with an interference fit segment structure, the socket fits and the connection The base of the device is fixed by the transitional step structure in the stamping process, and the structure of a single thorn is used to realize the radial anti-rotation function of the socket fitting in the base. In this technology, the two parts of the protective tube and the pin are mechanically The interference fit is fixed together, the number of part structures is large, the structure and its assembly process are relatively complex, and due to the height and size limit of the jack contact, the height of the mating surface of the protective tube and the pin is generally not more than 1mm, so that there is a problem at the mating surface. The risk of physical gaps, in the process of welding and use, or the amount of organic solvents such as flux is large, or the process protection is improper, there is a risk of excess contamination, resulting in poor contact

The radial structural strength of the mating surface of the protective tube and the pin is also affected by the wall thickness and material of the protective tube. If it is subjected to radial mechanical stress during assembly or use, the matching structure may be loosened. Here, the contact point of the signal transmission channel Reduced, increased risk of excess contamination and poor signal transmission

[0003] The Chinese patent with the publication number CN210006971U provides a one-piece crown spring socket assembly, including the socket and the crown spring contact ring. The structure is designed with a circle of limit arc-shaped protrusions on the inner wall of the socket to carry out the contact ring The fixing of the socket fitting is fixed through the transition step structure of the stamping process, and the radial anti-rotation function of the socket fitting in the base is realized by processing the flattened surface on the inclined surface of the tail end of the socket. The structure cannot avoid the matching gap between the socket contact and the radial mating circle of the connector insulator, and liquids such as organic solvents are also likely to flow from the tail end of the connector to the butt end through this channel to cause pollution, and there is a greater impact on the orientation of the socket fitting. Products with high requirements for terminal connection (such as bent-insert printed board type), the effectiveness of cutting and positioning is insufficient

[0004] At the same time, the jack contact is an important part of the connector, and its structure and performance reliability are the key to determining the basic functions of the connector. In the prior art, there is a flow channel between the tail welding point and the butt end, and the welding process is difficult to control. It is even more difficult to realize automatic welding, which greatly restricts the processing, quality cost and production cycle of large-core connectors.

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