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Pressure sensor

A pressure sensor, humidity sensing technology, applied in the direction of instruments, chemical instruments and methods, force/torque/power measuring instruments, etc., can solve the problems of increased damage rate of the device, the shell cannot be made completely sealed, and influence, so as to avoid high temperature Damaged effect

Inactive Publication Date: 2020-05-01
嘉善海宏电子组件厂
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Retrieve the Chinese patent No. CN209470797U to propose a pressure sensor. The device adopts PA polyamide material to prevent corrosion and rust of the shell, but the shell cannot be made into a completely sealed state, otherwise it will affect the data collected by the sensor, and the air humidity will be relatively high. Larger size will also affect the internal vitality of the pressure sensor, and at the same time, the moisture in the air will cause condensation on the surface of the parts, resulting in an increase in the damage rate of the device

Method used

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Embodiment 1

[0022] see Figure 1-3 , a pressure sensor, including a pressure sensor, including a box 1, the box 1 is symmetrically provided with partitions 16, wherein one partition 16 and one side wall of the box 1 form the first installation cavity 2, and the other The partition plate 16 and the side wall of the box body 1 form the second installation cavity 12, and the first baffle plate 13 is arranged between the two partition plates 16, and the sensor component 5 is fixedly connected to the side wall of the box body 1. A power supply 3 is fixedly connected to the side wall of the first installation chamber 2, and a humidity sensing device is embedded on a partition 16 on one side of the first installation chamber 2. The humidity sensing device includes a sleeve 4, and an annular Blocking shoulder 21, one side of annular blocking shoulder 21 is provided with slide plate 19, and one side side wall of slide plate 19 is fixedly connected with push rod 18, is provided with external thread...

Embodiment 2

[0024] Based on Example 1, such as figure 2 The side wall of the third installation cavity 10 is provided with a bimetal 14, the side wall of the first installation cavity 2 is fixedly connected with a second switch 15, and the second switch 15 and the first switch 17 form a double Control switch, through the set bimetal 14 and double control switch, you can feel the temperature in the environment in time. When the heating temperature is too high, the bimetal 14 bends, and then squeezes the second switch 15 to turn off the heating in time The power supply 3 of the resistance wire 11 prevents the continuous operation of the heating resistance wire 11 from causing high temperature damage.

[0025] Working principle: When the humidity in the sensor is relatively high, the expansive soil 24 will absorb water vapor through the filter 25, and the expansive soil 24 after absorbing water will expand, and then push the push plate 23 to move forward, and the push plate 23 will pass thr...

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Abstract

The invention relates to the technical field of mining instruments, and discloses a pressure sensor. The pressure sensor comprises a box body, partition plates are symmetrically arranged in the box body, one partition plate and one side wall of the box body form a first mounting cavity, the other partition plate and one side wall of the box body form a second mounting cavity, and a first baffle isarranged between the two partition plates; a sensor component is fixedly connected to the side wall of one side of the box body, a power source is fixedly connected to the side wall of the first mounting cavity, a humidity sensing device is embedded in the partition plate on one side of the second mounting cavity, and a first switch is arranged on the side wall of one side of the first mounting cavity; and a third mounting cavity is formed between the first baffle and the side wall of the box body. According to the pressure sensor, the humidity of the environment can be sensed, and water vapor in the sensor can be taken away through evaporation.

Description

technical field [0001] The invention relates to the technical field of mine instruments, in particular to a pressure sensor. Background technique [0002] The pressure sensor is an automatic monitoring device that integrates microcomputer technology and computer technology for automatic measurement and transmission of the force change of the bolt and cable in the coal mine. Retrieve the Chinese patent No. CN209470797U to propose a pressure sensor. The device adopts PA polyamide material to prevent corrosion and rust of the shell, but the shell cannot be made into a completely sealed state, otherwise it will affect the data collected by the sensor, and the air humidity will be relatively high. A large amount will also affect the internal vitality of the pressure sensor, and the moisture in the air will cause condensation on the surface of the parts, resulting in an increase in the damage rate of the device. Contents of the invention [0003] (1) Solved technical problems ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01L5/00B01D53/26
CPCB01D53/26B01D2257/80G01L5/0028
Inventor 吴学超
Owner 嘉善海宏电子组件厂