Crown spring structure

Abstract

The invention discloses a crown spring structure which is shaped as a waist drum. The crown spring structure comprises a first frame and a second frame. A plurality of springs are connected between the first frame and the second frame. A spacing slot is arranged between every two adjacent springs. Each spring includes a limit part, and a first contact part and a second contact part are respectively connected to two opposite sides of the limit part. The limit part, the first contact part and the second contact part of each spring are combined into a 'W' shape. A guide groove is formed in the inner hole wall of the crown spring. The limit parts protrude outward, and the first contact parts and the second contact parts protrude inward. By setting two contact positions, the contact performancebetween the crown spring and a plug is increased, and poor contact caused by installation is avoided. As the limit parts contact the inner hole wall of a socket, the deformation of the springs is limited, the springs are prevented from deforming permanently due to excessive deformation, and the service life of the springs is increased.

Description

Technical field [0001] The invention relates to the field of high-current jack connectors, in particular to a crown spring structure. Background technique [0002] The Chinese invention patent (application number: 201510884931.7) discloses a kind of crown spring contact piece, which is arranged in a waist drum shape and includes a crown spring base at both ends and a number of reeds connected between the crown spring base. Each of the leaf springs has a contact portion protruding toward the axial center of the crown spring contact piece, and the contact portion is further provided with a convex hull for abutting against the butting plug. [0003] Due to the existence of the convex hull, this structure will cause stress concentration when the plug is inserted, that is, large deformation stress will be generated around the convex hull, which will cause the crown spring contact to deform or reduce the elastic force after multiple insertions and unplug, which affects the contact perfor...

AI Technical Summary

Problems solved by technology

[0003] Due to the existence of the protrusion, the structure will cause stress concentration when the plug is inserted, that is, a large deformation stress will be generated around the protrusion, resulting in deformation or a decrease in the elastic force of the crown spring contact after repeated insertions and withdrawals, affecting the contact performance. , leading to the problem of poor contact

Moreover, when the plug is inserted obliquely, it may push against the convex hull, resulting in difficulty in insertion, and increases the friction between the plug and the crown spring contact, increasing the wear of the crown spring contact and the plug

Images