High-current toggle switch with electromagnetic shielding characteristic

Abstract

The invention provides a high-current toggle switch with an electromagnetic shielding characteristic. The high-current toggle switch comprises a handle, a shifting fork assembly, a movable contact piece assembly, a fixed contact piece assembly and a shielding cover. The shifting fork assembly, the movable contact piece assembly and the fixed contact piece assembly are installed in the shielding case to form a switch, and the handle penetrates through the top wall of the shielding case to be installed on the shifting fork assembly to form an action mechanism. According to the invention, the conductive part of the switch is wrapped by the shielding cover, so that the influence of external electromagnetic interference on the switch is effectively solved, and electromagnetic signals in the switch are prevented from diffusing outwards, thereby realizing an electromagnetic shielding function. Meanwhile, due to lead-out of the connecting wires, the ablation problem of the conductive pins is avoided, so that the environmental adaptability of the electromechanical element is effectively and greatly improved, and the equipment reliability is improved.

Description

technical field [0001] The invention relates to a high-current button switch with the characteristic of electromagnetic shielding. Background technique [0002] The button switch is an electromechanical component. It is a manual control switch. The switch is realized by manually pulling the button handle. It has the characteristics of small size, simple and convenient operation, high reliability, and good hand feeling. It is widely used in aviation, In the fields of aerospace, shipbuilding, weapons, electronics, etc., it plays the role of connecting and disconnecting circuits in electronic equipment and instruments. [0003] At present, higher requirements are put forward for the button switch of the traditional structure. It needs to have the ability to resist electromagnetic interference, that is, it needs to have the function of electromagnetic shielding to improve its reliability and safety. In the existing technology, the traditional button switch is The electromagneti...

AI Technical Summary

Problems solved by technology

[0003] At present, higher requirements are put forward for the button switch of the traditional structure. It needs to have the ability to resist electromagnetic interference, that is, it needs to have the function of electromagnetic shielding to improve its reliability and safety. In the existing technology, the traditional button switch is The electromagnetic shielding function was not considered in the design. The shell of the traditional button switch is formed by plastic molding, or the plastic base is riveted with the metal shell. The metal does not completely wrap the conductor, and the intercepting conductor is exposed outside, or There are large gaps between the exposed metals, so it does not have the function of electromagnetic shielding and cannot meet the needs of the current market

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