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Network filter module and manufacturing method thereof

A technology of filter module and manufacturing method, applied in impedance network, multi-terminal pair network, electrical components and other directions, can solve the problems of many processes and long working hours, and achieve the elimination of network noise, high inductance and reduced winding process. Effect

Active Publication Date: 2018-12-11
FOXCONN (KUNSHAN) COMPUTER CONNECTOR CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The winding and arranging procedures of the four-pair wire W around the ring core C1 are numerous and the working hours are long

Method used

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  • Network filter module and manufacturing method thereof
  • Network filter module and manufacturing method thereof
  • Network filter module and manufacturing method thereof

Examples

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Embodiment Construction

[0019] Such as figure 1 Shown is a circuit diagram of a network filter module according to the present invention. The network filter module is provided with several signal transmission channels 11, each signal transmission channel 11 has a common mode choke coil 12 and an autotransformer 13 connected to each other, and each signal transmission channel does not have an isolation transformer. The autotransformer 13 is close to the network cable side 101 , and the common mode choke coil 12 is close to the chip side 102 . In addition, the positions of the autotransformer 13 and the common mode choke coil 12 relative to the wire side 101 and the chip side 102 may also be exchanged.

[0020] Such as figure 2 shown as figure 1 The one-channel circuit of the network filter module shown, image 3 for use figure 2 One-channel network filter module. The common mode choke coil 12 includes a first toroidal core 121 and two enameled wires 122 wound on the first toroidal core 121, ...

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Abstract

A network filter module is provided with a plurality of signal transmission channels. A common-mode choke and an autotransformer which are mutually connected are arranged in each signal transmission channel; no isolation transformer exists in each signal transmission channel; the common-mode choke comprises a first toroidal core and two enamel wires wound on the first toroidal core; and the autotransformer comprises a second toroidal core and two enamel wires wound on the second toroidal core. The network filter module of the invention is low in manufacturing cost and high in lightning protection level. The invention also discloses a method of manufacturing the network filter module.

Description

【Technical field】 [0001] The invention relates to a network filter module and its manufacturing method, in particular to the arrangement of magnetic core components in the network filter module. 【Background technique】 [0002] The RJ45 network connector and the RJ45 crystal head are sockets and plugs for each other, and the RJ45 crystal head is connected to the network cable. Since the network cable is often located outside the building, sometimes the network cable is struck by lightning, resulting in a large surge (surge) from the network cable. It is transmitted to the RJ45 network connector through the RJ45 crystal head. At this time, the center tap of the isolation transformer in the traditional RJ45 network connector is connected with resistors and capacitors. High surges may damage the resistors and capacitors and cannot be connected to the ground. , and at this time, the high surge will be coupled from the primary of the isolation transformer to the secondary of the i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H03H1/00H03H7/00
Inventor 徐勇春
Owner FOXCONN (KUNSHAN) COMPUTER CONNECTOR CO LTD
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