Metal elastic contact

Abstract

The invention relates to a metal elastic contact, which comprises an elastic contact, wherein the elastic contact is formed by bending a metal sheet; the elastic contact comprises an elastic contact surface, elastic support surfaces and fixed support surfaces, which are sequentially arranged from top to bottom; at least two edges of the elastic contact surface are provided with the elastic support surfaces respectively; and the fixed support surfaces are fixed at the lower ends of the elastic support surfaces respectively. The elastic support surfaces of the metal elastic contact are at least supported by two fixed support surfaces, so that the elastic support surfaces are located in a relatively balanced state. Meanwhile, the elastic contact is formed by bending the metal sheet, namely various parts are integrated, so that the condition of poor contact among various parts is avoided, so that the metal elastic contact has the advantages of being low in cost, easy to process, reliable to work, long in lifetime and the like.

Description

technical field [0001] The invention relates to a conductive elastic contact, in particular to a metal elastic contact. Background technique [0002] Existing conductive elastic contacts for electronic products or power facilities can be found in Chinese Patent Announcement No. 202585849U, which disclosed a lithium battery conductive group structure for a handheld device on December 5, 2012, including: a conductive cylinder seat, and the inner end surface of the bottom plate Punch a positioning hole to fix the power supply position of the existing hand-held device circuit (that is, the bottom of the torch holder is used for fixed connection with the circuit), and roll a lip ring on the other end opening; a conductive cap, the open end slides in the conductive cylinder holder , the other end of the pressure contact is connected with a shoulder; one extension spring, one end is placed in the pressure contact of the conductive cap, and the other end is placed in the positioning...

AI Technical Summary

Problems solved by technology

The conductive group in this structure is the conductive elastic contact, which is composed of a conductive cylinder seat, a conductive cap and an extension spring. Its structure is complex and the cost is high

In addition, due to the sliding fit between the conductive cap and the inner cavity of the conductive cylinder seat, when dirt accumulates in the gap between the two, it is easy to get stuck; or, when the conductive group is applied to other high-power electric facilities, the conductive cap and the conductive cylinder seat The fit gap is prone to sparking and melting, which makes the two connected together, loses elasticity, reduces the compression degree when it contacts with other conductive contacts, and weakens the conductive effect

Furthermore, because the conductive group is in a closed structure, its heat dissipation effect is poor, so that the temperature rise of the conductive group is serious

In addition, the sliding fit between the conductive cap and the conductive cylinder seat causes irregular shaking of the stretching spring during telescopic movement. Therefore, after the conductive group is used for a long time, the mating surface between the conductive cap and the conductive cylinder seat has irregular wear , so that the matching gap between the conductive cap and the conductive cylinder seat increases, so that the conductive effect is weakened; in addition, although the conduction between the conductive cap and the conductive cylinder seat can be conducted through the stretch spring, the conductivity of the metal material for the stretch spring is not good. Good, the corrosion of the conductive coating on the surface of the stretch spring makes the conductivity of the conductive group weaken quickly, especially in the field of high-power (strong current) electric power, and occasions that require long-term opening and closing work, which can reflect the above The conductive group has a shorter service life

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