Singl-leaf revolving double-curve crown-strip ring and its process thereof

Abstract

Convoluting the elasticity sheets metal punched forms the coronary straps jack contact element so that the manufacturing procedure is simple providing the advantages of low cost, good consistency and being suitable to mass production. The contact between jacks and pins is the contact mode of the multiaspect envelope so as to provide the features of steady dynamic contact resistance, shockproof, antivibration, small contact resistance etc. The structure of the contact element is simple without the front cover, back cover and inner housing, Thus, the size of the contact element is smaller and the wastage of copper material is reduced so as to save copper material as well as human resources.

Description

Technical field [0001] The invention belongs to a contact piece of an electrical connector, in particular to a single-leaf rotary hyperboloid crown ring. Background technique [0002] At present, the existing electrical connector contacts with good reliability and stability have single-leaf rotary hyperboloid wire spring jacks, which are evenly enveloped by a group of elastic metal wires arranged in a single-leaf rotary hyperboloid structure. On the surface of the pin inserted into it, it is a multi-line envelope contact. The socket contact with this wire spring structure is composed of four parts: an inner sleeve, an outer sleeve, a rear sleeve, and an elastic metal wire. A group of elastic metal wires arranged in a single-leaf rotary hyperboloid are coaxially installed in the inner sleeve, and each The two ends of a metal wire extend out of the two ports of the inner casing, and are bent back along the outer cylindrical surface of the inner casing. The bending part is cla...

AI Technical Summary

Problems solved by technology

[0003] This kind of wire spring structure has the following disadvantages: (1) the contact resistance of the sleeve method is large, and the tensile force is poor, and the front and rear sleeves are easily separated from the pressure point by the tension, resulting in connection failures and accidents; If there are too many, the volume cannot be further reduced, which is not conducive to the development of miniaturization and densification; (3) the processing technology is complicated and the precision requirements are high, resulting in low product qualification rate and high cost; (4) it is impossible for the elastic metal wire to It is very thick, making it difficult for each wire to withstand the impact of a large current; (5) The phenomenon of broken wires during use cannot be solved

When the pin is inserted into the crown band, the elastic metal strip is in contact with the surface of the pin at the waist circle. Because of structural limitations, it cannot be evenly wrapped on the surface of the pin like the wire spring wire in the wire spring structure. The elastic metal strip does not form a single-leaf hyperboloid of revolution, and its contact performance cannot be compared with the multi-line envelope contact method of the single-leaf hyperboloid of revolution

Images