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Instability detection sensor and packaging method

A technology for detecting sensors and metal inner shells, applied in the field of sensors, can solve problems such as low withstand voltage and poor anti-interference performance, and achieve the effects of improving AC withstand voltage performance, improving electromagnetic compatibility, and improving anti-interference performance.

Active Publication Date: 2020-02-28
MT MICROSYST
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Problems solved by technology

[0004] The purpose of the present invention is to provide an instability detection sensor and a packaging method, aiming at solving the problems of poor anti-interference performance and low withstand voltage of the existing instability detection sensor

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  • Instability detection sensor and packaging method
  • Instability detection sensor and packaging method

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Embodiment Construction

[0040] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer, 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, not to limit the present invention.

[0041] Please also refer to Figure 1 to Figure 3 , an instability detection sensor provided by the present invention will now be described. The instability detection sensor includes a metal shell 1, a metal inner shell 2, and a circuit unit 5, wherein a side of the metal shell 1 is provided with a first opening 13 and the side is connected with a socket for encapsulating the first opening 13.

[0042]The first cover 11; the metal inner shell 2 is arranged inside the metal outer shell 1, and there is a preset gap between the metal inner shell 2 and the metal outer...

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Abstract

The invention provides an instability detection sensor and a packaging method, which belong to the technical field of sensors. The instability detection sensor comprises a metal outer shell, a metal inner shell and a circuit unit, wherein a first opening is formed in one side surface of the metal outer shell, and the side surface is connected with a first sealing cover used for packaging the firstopening; the metal inner shell is arranged in the metal outer shell, and a preset gap is formed between the metal inner shell and the metal outer shell; a second opening is formed in the side surface, facing the first sealing cover, of the metal inner shell, and the side surface is connected with a second sealing cover used for packaging the second opening; the circuit unit is fixedly connected to the inner wall of the metal inner shell and provided with a signal cable sequentially penetrating through the side wall of the metal inner shell and the side wall of the metal outer shell outwards,and the signal cable is used for being electrically connected with a signal processor; and when the second sealing cover packages the second opening and the first opening is upward, the preset gap isfilled with liquid first silicone rubber, and the first silicone rubber is used for completely wrapping the metal inner shell and supporting the metal inner shell in the metal outer shell in an insulating mode after being cured.

Description

technical field [0001] The invention belongs to the technical field of sensors, and more specifically relates to an instability detection sensor and a packaging method. Background technique [0002] With the rapid development of high-speed railway transportation and the continuous improvement of its speed, the real-time monitoring of its operation safety and comfort has become the primary task. Due to the complex structure of the rail vehicle, the harsh working environment, and the complex electromagnetic environment, it is necessary to design a system that can work reliably in a complex environment to monitor the running status of the vehicle safely; due to the particularity of the structure of the rail vehicle, the monitoring of the rail vehicle is the most It is important to monitor the state of the bogie in real time. [0003] The detection quality of the bogie instability detection device and its dependence on the reliability of the instability detection sensor. Howev...

Claims

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Application Information

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IPC IPC(8): G01D11/00G01D11/24G01D11/26
CPCG01D11/00G01D11/245G01D11/26
Inventor 郑七龙张永胜杨拥军吝海锋卞玉民
Owner MT MICROSYST
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