Jack assembly with composite coating, electric connector and electroplating method thereof

Abstract

The invention provides a jack assembly with a composite coating. The jack assembly comprises a jack and a contact spring coil, a blind hole is arranged at the butt joint end of the jack, and the contact spring coil is arranged in the blind hole. The contact spring coil is fixed in the blind hole by closing an opening of the blind hole, the contact spring coil is provided with a plurality of elastic spring claws, and the coating of the contact spring coil is a gold-graphene composite coating, and the plating layer of the jack is a gold plating layer or a gold-graphene composite plating layer. An electric connector is provided with the jack assembly. According to the jack assembly with the composite coating, the electric connector and an electroplating method of the jack assembly, the gold-graphene composite plating layer is electroplated on the contact spring coil, and the spring claw structure is optimized, so that the mechanical life of the jack assembly is prolonged, and the mechanical life of the electric connector is further prolonged.

Description

technical field [0001] The invention belongs to the technical field of electrical connectors, and in particular relates to a socket fitting with a composite plating layer, an electrical connector and an electroplating method thereof. Background technique [0002] In order to ensure good electrical contact performance of the electrical connector, the contact position between the socket and the pin needs to meet a certain positive pressure, so wear is inevitable when plugging and unplugging, and in order to ensure good electrical conductivity, usually in the contact The surface of the workpiece is gold-plated, but because the hardness of gold itself is relatively soft, elements such as nickel and cobalt are usually added to the plating solution to enhance the hardness of the gold coating to improve the hardness and wear resistance of the gold coating, but factors such as corrosion resistance need to control the pores of the coating rate, the proportion of dopant elements added...

AI Technical Summary

Problems solved by technology

[0002] In order to ensure good electrical contact performance of the electrical connector, the contact position between the socket and the pin needs to meet a certain positive pressure, so wear is inevitable when plugging and unplugging, and in order to ensure good electrical conductivity, usually in the contact The surface of the workpiece is gold-plated, but because the hardness of gold itself is relatively soft, elements such as nickel and cobalt are usually added to the plating solution to enhance the hardness of the gold coating to improve the hardness and wear resistance of the gold coating, but factors such as corrosion resistance need to control the pores of the coating rate, the proportion of dopant elements added is limited, and the contact piece, as the core part of the electrical connector, has a direct impact on the mechanical life and reliability of the electrical connector, so that the mechanical life index of the electrical connector in the prior art is limited to 500 At the second level, with the development of military weapons and equipment, higher requirements are placed on the mechanical life of components. The conventional 500-time mechanical life of electrical connectors can no longer meet the long-life requirements proposed in more and more occasions. In addition, the elastic structure of the socket also affects the mechanical life. For example, the Chinese patent with the publication number CN104319495A provides a kind of spring claw. During the process, the claws are repeatedly expanded and retracted, and the root of the cantilever end of the claws is susceptible to concentrated stress, resulting in cracking and affecting the mechanical life

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