Filter circuit of RJ-45 connector

A RJ-45, filter circuit technology, applied in electrical components, impedance networks, multi-terminal pair networks, etc., can solve the problems of not meeting the requirements of use, low anti-surge ability, etc., to improve the ability of anti-surge impulse voltage, Stable product quality and the effect of expanding the scope of application

CN104135246AInactive Publication Date: 2014-11-05WUHAN XINSENHUA TECH IND DEVCO
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2014-11-05
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention provides a filter circuit of an RJ-45 connector. The filter circuit comprises at least one signal transmission channel, wherein each signal transmission channel comprises a chip capacitor C1, a chip resistor R1, a parallel large magnetic ring winding L1 and a series chip inductor L2, and at least one signal transmission channel is jointly connected to a ground capacitor C; a nonlinear resistor R2 is connected between a circuit, which is connected to each chip inductor L2, of a cable side pin of the filter circuit of the RJ-45 connector and a ground potential, and the nonlinear resistor R2 is connected to the ground capacitor C in parallel. An inductance component in the filter circuit of the RJ-45 connector is formed by one large magnetic ring winding L1 and one chip inductor L2, so that full-automatic welding can be implemented to facilitate improving precision of an inductance value, guaranteeing stability of product quality and reducing labor cost. According to the filter circuit of the RJ-45 connector provided by the invention, the nonlinear resistor R2 is added on the cable side pin of the RJ-45, so that the surge impact voltage resistance of the RJ-45 connector is improved, and the application range of the RJ-45 under the extremely harsh work condition is expanded.
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Description

Technical field

[0001] The invention relates to the field of connectors, in particular to an RJ-45 connector filter circuit.

Background technique

[0002] The structure of the existing RJ-45 connector mainly includes a built-in filter, an upper terminal, a lower terminal, a rubber core and a main body. Wherein, the filter is installed on the PCB board, and is connected with each terminal through the PCB board, and the PCB board and the filter are placed in the installation groove of the rubber core, and silica gel is injected into the groove to fix it. The upper terminal and the lower terminal are assembled on the rubber core, and the rubber core is installed on the main body. The main body can also be wrapped with a shell.

[0003] In the existing RJ-45 connector with this structure, the inductance element in the filter is generally composed of a large magnetic surrounding group and a small magnetic surrounding group. From the perspective of processing technology, la...

Examples

Embodiment Construction

[0020] In order to better understand the present invention, the present invention will be described in detail below in conjunction with the accompanying drawings and specific examples.

[0021] In order to overcome the above-mentioned defects of the prior art, the present invention proposes a new RJ-45 connector filter circuit. see figure 1 , the RJ-45 connector filter circuit provided by the first preferred embodiment of the present invention is an integrated RJ-45 with 10 pins (X1-X10) on the equipment side and 8 pins (Y1-Y8) on the cable side Connector filter circuit. Wherein, the filter circuit is composed of inductance elements and capacitance elements.

[0022] exist figure 1 The shown RJ-45 connector filter circuit contains 4 complete sub-filter circuits (4 signal transmission channels). In other preferred embodiments, some RJ-45 connectors may also have 2 or other number of sub-filter circuits (signal transmission channels). Here, only an RJ-45 connector including...