Plug-in for vehicle-mounted subrack and vehicle-mounted subrack

A plug-in and box-in technology, which is applied in the field of railway train electronic equipment, can solve the problems of electromagnetic interference of circuit performance and poor protection effect, and achieve the effects of signal isolation, strong versatility, and improved electromagnetic shielding effect

Pending Publication Date: 2021-01-08
CRSC RESEARCH & DESIGN INSTITUTE GROUP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This makes the circuit performance of the plug-in itself and the circuit performance of other plug-ins inside the vehicle plug-in box have unpredictable electromagnetic interference effects
It can be seen that the existing vehicle-mounted box has the problem of poor EMC protection effect

Method used

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  • Plug-in for vehicle-mounted subrack and vehicle-mounted subrack
  • Plug-in for vehicle-mounted subrack and vehicle-mounted subrack
  • Plug-in for vehicle-mounted subrack and vehicle-mounted subrack

Examples

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Embodiment Construction

[0029] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, but not to limit the present invention. In addition, it should be noted that, for the convenience of description, only some structures related to the present invention are shown in the drawings but not all structures.

[0030] An embodiment of the present invention provides a plug-in for a vehicle-mounted box. figure 1 It is a schematic structural diagram of a plug-in for a vehicle-mounted box provided by an embodiment of the present invention, figure 2 for figure 1 Schematic diagram of the internal structure of the electromagnetic shielding structure in, image 3 for figure 1 Schematic diagram of the structure after removing the electromagnetic shielding structure, Figure 4 for image 3 Schematic diagram of the enlarged s...

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PUM

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Abstract

The embodiment of the invention discloses a plug-in for a vehicle-mounted subrack and the vehicle-mounted subrack. The plug-in for the vehicle-mounted plug-in box comprises a circuit board and an electromagnetic shielding structure; the circuit board comprises at least two radio frequency circuit areas, radio frequency circuits are arranged in the radio frequency circuit areas, and the radio frequency circuits are low-frequency radio frequency circuits with the frequency smaller than 100 MHz; at least one radio frequency circuit area is provided with an electromagnetic shielding circuit, and the electromagnetic shielding circuit is used for weakening electromagnetic interference of the radio frequency circuit; a shielding circuit surrounding the radio frequency circuit area is arranged corresponding to at least one radio frequency circuit area; the electromagnetic shielding structure is located at the side, provided with the shielding circuit, of the circuit board; the electromagneticshielding structure comprises a cover body and an isolation part arranged on the cover body, and the isolation part is in direct contact with the shielding circuit. Compared with the prior art, the EMC protection effect of the vehicle-mounted subrack is improved.

Description

technical field [0001] Embodiments of the present invention relate to the technical field of railway train electronic equipment, and in particular to a plug-in for a vehicle-mounted box and a vehicle-mounted box. Background technique [0002] Vehicle-mounted plug-in box, also known as vehicle-mounted plug-in box, is an important type of vehicle-mounted equipment in railway trains. According to different functional requirements, corresponding plug-ins can be configured in the vehicle-mounted plug-in box. In the prior art, in order to meet the electromagnetic shielding (Electromagnetic Compatibility, EMC) protection requirements of the vehicle equipment, the plug-in and the vehicle sub-box are usually combined to form a self-enclosed EMC protection system. In other words, the focus of EMC protection is on the overall protection of the plug-in box + plug-in, so as to avoid the mutual electromagnetic interference (Electromagnetic Interference, EMI) between the vehicle-mounted s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05K9/00
CPCH05K9/00H05K9/0007
Inventor 朱勇赵君伟柴忠勇
Owner CRSC RESEARCH & DESIGN INSTITUTE GROUP CO LTD
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