Contact piece structure for vehicle-mounted cigarette lighter socket

Abstract

The invention discloses a contact piece structure for a vehicle-mounted cigarette lighter socket. A contact shell is arranged on the inner wall of the vehicle-mounted cigarette lighter socket; the contact shell comprises a plurality of concave parts and convex parts arranged at intervals; a middle electrode for connecting an external plug is arranged at the bottom of the cigarette lighter socket;the concave parts and the convex parts both adopt rounded rectangle shapes; the transitional line between the concave parts and the convex parts is a smooth curve; the concave parts are consistent tothe shape of an elastic sheet on the edge of the external plug; and the maximum concave depth of the concave parts is slightly smaller than the extension distance of the elastic sheet from the external plug. By virtue of improvement of the matching structure of the existing vehicle-mounted cigarette lighter socket and the external plug, the contact surface is enlarged, the matching performance isimproved, possibility of electrical performance sudden change and attenuation is lowered, and stable cruising power and safety of vehicle-mounted electrical appliances are improved.

Description

technical field [0001] The invention belongs to the field of electrical components, in particular to a contact plate structure for a vehicle-mounted cigarette lighter socket. Background technique [0002] The contact piece is a commonly used electrical component, which can be used as a part of the connector or as a separate part to undertake the task of conducting electricity. At present, the contact area of ​​most contacts is point contact, resulting in high contact resistance, which limits its flow performance, and the connection corners formed by the secondary processing of conductive contacts make it have defects such as burrs, burrs, and poor flatness. , the consistency of the contact formed by it is poor, and it also has an adverse effect on the contact resistance, that is, it affects its electrical conductivity. [0003] The car cigarette lighter socket is connected to the shrapnel on the edge of the outer plug through the smooth contact surface of the inner wall. It...

AI Technical Summary

Problems solved by technology

At present, the contact area of ​​most contacts is point contact, resulting in high contact resistance, which limits its flow performance, and the connection corners formed by the secondary processing of conductive contacts make it have defects such as burrs, burrs, and poor flatness. , the consistency of the contact formed by it is poor, and it also has an ad

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