Mounting structure for electric contact terminal

Abstract

The present invention discloses a mounting structure for an electrical contact terminal, and more particularly discloses a technique that enables reliable mounting of an electrical contact terminal atan electrical contact portion provided to a metal casing. An accommodation groove is integrally formed in the electrical contact portion of the surface of the metal casing, and the electrical contactterminal is forcibly inserted into the accommodation groove to be physically coupled to the accommodation groove, and gap portions between a main body and the casing are fused and joined to each other by welding at the entrance of the accommodating groove, so that the gap portions between the main body and the casing is mechanically coupled and electrically coupled.

Description

technical field [0001] The present invention relates to an installation structure of an electrical contact terminal, in particular to a technology capable of reliably installing an electrical contact terminal on an electrical contact part equipped with a metal shell. Background technique [0002] Metal casings of electronic communication equipment represented by mobile phones can be made of non-ferrous metals such as aluminum or aluminum alloys and magnesium or magnesium alloys due to light weight, low price, and easy processing. [0003] As a result, the metal shell is susceptible to corrosion in the atmosphere or as the environment changes, resulting in a large and uneven electrical resistance, resulting in a large electrical contact resistance with the opposite conductive object, especially for RF applications or When used as an antenna, its RF performance or transmission and reception performance is degraded. [0004] In addition, since the mechanical strength of the su...

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Problems solved by technology

[0003] As a result, the metal shell is susceptible to corrosion in the atmosphere or as the environment changes, resulting in a large and uneven electrical resistance, resulting in a large electrical contact resistance with the opposite conductive object, especially for RF applications or When the antenna is used, its RF performance or transceiver performance is degraded

[0004] In addition, since the mechanical strength of the surface of the metal shell is relatively small, when an elastic metal clip (clip) mounted on a circuit board or the like with high mechanical strength mechanically repeatedly contacts the surface of the metal shell, the contact part is easily worn or worn. bad, making it difficult to continue to provide reliable electrical contact

[0005] In order to solve such problems, the surface of the shell can be coated or plated with metal to prevent corrosion and improve mechanical strength, but this surface treatment has the disadvantage of increasing the resistance of the shell surface

[0006] Therefore, although the surface-treated part of the housing that is in contact with the metal clip mounted on the circuit board is peeled off by post-processing such as grinding to reduce resistance, the electrical contact part that is peeled off by grinding will eventually be exposed to the external, so corrosion can still occur

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