Connector of telephone

Abstract

The invention discloses a connector of a telephone, which belongs to the electronic field and comprises a socket, a plug, a metal casing cover, a printed circuit board (PCB) and a tail cover. A patch three-terminal electromagnetic interference (EMI) filter is arranged on the PCB and used for filtering signals of the telephone. The socket is arranged in the metal casing cover and detachably connected with a telephone casing. The tail cover is connected with the plug, and an electric conduction contact face of the tail cover is detachably and electrically connected with the telephone casing. The tail cover leads a shielding layer of a handle shielded cable and the socket to form electrical connection and to be grounded through the telephone casing. When the plug is inserted into the socket,the plug and the socket are totally wrapped by the tail cover, the PCB and the metal casing cover. By arranging the patch three-terminal EMI filter, electromagnetic signal radiation leakage of the telephone is reduced, and the detachable metal casing cover and the detachable tail cover facilitate installation and maintenance.

Description

technical field [0001] The invention relates to the field of electronics, in particular to a telephone connector. Background technique [0002] In the development course of the telecommunication industry, all kinds of fixed telephone sets play an important role. At the present stage, although the number of mobile phone users is constantly increasing, many users still use fixed phones for communication due to their own low radiation, high call quality, clear sound and many other advantages. [0003] In the process of realizing the present invention, the inventor finds that there are at least the following problems in the prior art: [0004] Most of the telephones in the prior art use the RJ9 socket to connect the telephone handle, and install a core-through three-terminal EMI filter on the metal shell of the telephone, and weld the handle wire on the core-through three-terminal EMI filter to connect the telephone handle , but the way of connecting the phone handle by weldin...

AI Technical Summary

Problems solved by technology

[0004] Most of the telephones in the prior art use the RJ9 socket to connect the telephone handle, and install a core-through three-terminal EMI filter on the metal shell of the telephone, and weld the handle wire on the core-through three-terminal EMI filter to connect the telephone handle , but the way of connecting the phone handle by welding obviously brings a lot of inconvenience in terms of installation and maintenance and there is noise or noise during the call

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