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Split plug-in type surface acoustic wave temperature sensor

A temperature sensor, surface acoustic wave technology, applied in thermometers, thermometers with physical/chemical changes, instruments, etc., can solve the problems of switch cabinet discharge, lower antenna height, sensor damage, etc., to achieve reasonable installation methods and tight fit , the effect of reducing the overall volume

Pending Publication Date: 2022-07-15
苏州光声纳米科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] In view of the above-mentioned defects of the prior art, the technical problem to be solved by the present invention is: when adopting the scheme of split installation, fixing by screws, and filling the installation gap with thermal pads, it is necessary to solve the problem of buckle-type and binding-type Due to the loose contact between the sensor and the moving contact caused by the installation method, the partial discharge of the switch cabinet and the damage of the sensor itself are induced; when the ceramic antenna is used to reduce the height of the antenna, it is necessary to solve the problem that the conventional surface acoustic wave temperature sensor cannot be used on the moving contact. header installation problem

Method used

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  • Split plug-in type surface acoustic wave temperature sensor

Examples

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Effect test

Embodiment 1

[0047] like figure 1 As shown in the figure, a separate plug-in type surface acoustic wave temperature sensor includes a surface acoustic wave temperature sensing chip 1, a ceramic antenna 2, a sensor shell 3, an arc-shaped upper bracket 4, a groove-type lower bracket 5, and a thermally conductive gasket 6. ; SAW temperature sensing chip 1, fixedly connected to the side of ceramic antenna 2; Ceramic antenna 2, arranged in sensor housing 3; Sensor housing 3, the interior space matches with ceramic antenna 2; Sensor housing 3 and ceramic antenna 2 are The arc-shaped upper bracket 4 is connected with screws and sealed with insulating glue; The thermal conductive gasket 6 is placed at the bottom of the groove-type lower bracket 5; the thermal conductive gasket 6 has an appropriate thickness; ensure that the arc-shaped upper bracket 4 and the groove-type lower bracket are in close contact with the metal part of the chrysanthemum head after installation. The arc-shaped upper bracke...

Embodiment 2

[0064] like Figure 8 As shown in the figure, a separate plug-in type surface acoustic wave temperature sensor includes a surface acoustic wave temperature sensing chip 1, a ceramic antenna 2, a sensor shell 3, an arc-shaped upper bracket 4, a groove-type lower bracket 5, and a thermally conductive gasket 6. , conductive film 7; surface acoustic wave temperature sensing chip 1, fixedly connected to the side of the ceramic antenna 2; ceramic antenna 2, arranged in the sensor housing 3; sensor housing 3, the internal space and ceramic antenna 2 match; ceramic antenna 2 and arc The conductive film 7 is filled between the upper brackets 4, and the outer cover reinforcement 3-2 on the top of the sensor shell 3 is pressed on the antenna radiating surface 2-1 of the ceramic antenna 2, and the ceramic antenna 2 is pressed by the elasticity of the conductive film 7. The top end face of the arc upper bracket 4 . The sensor shell is connected with the arc-shaped upper bracket 4 by screw...

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Abstract

The invention discloses a split plug-in type surface acoustic wave temperature sensor, which is characterized by comprising a surface acoustic wave temperature sensing chip, a ceramic antenna, a sensor shell, an arc-shaped upper bracket, a groove-shaped lower bracket and a heat-conducting gasket, the surface acoustic wave temperature sensing chip is fixedly connected to the side surface of the ceramic antenna; the ceramic antenna is arranged in the sensor shell; the internal space of the sensor shell is matched with the ceramic antenna; the ceramic antenna is fixed on the top surface of the arc-shaped upper support, the sensor shell, the arc-shaped upper support and the groove-shaped lower support are connected through screws, and the heat-conducting gasket is arranged at the bottom of the groove-shaped lower support. The ceramic antenna is used as a built-in antenna of the surface acoustic wave, the height of the antenna is greatly reduced, the sensor is only 10mm higher than the chrysanthemum head after being mounted, the mounting requirement of a moving contact is met, and an up-and-down double-clip type mounting method is adopted, so that the sensor is ensured to be in close contact with the chrysanthemum head at any time, keep equipotential and be not damaged by high voltage of the chrysanthemum head after being mounted. According to the invention, reliable temperature monitoring of the moving contact by the surface acoustic wave temperature sensor is realized.

Description

technical field [0001] The invention relates to the field of temperature sensors, in particular to a split plug-in type surface acoustic wave temperature sensor. Background technique [0002] Temperature is an important indicator of the health status of electrical equipment, and it is also the core content of electrical equipment status monitoring. For medium voltage switchgear, the joint part of dynamic and static contacts is the electrical channel for transmitting large current. Due to the existence of contact resistance, it is also the most serious part of heat generation in the switchgear. For the temperature monitoring of the switch cabinet, the monitoring of the moving and static contacts is the most preferred monitoring object. [0003] In comparison, the moving contact and the circuit breaker are a whole. After the handcart is pulled out, the temperature sensor can be installed. The construction is simple and convenient, so monitoring the temperature of the moving c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01K11/26
CPCG01K11/265
Inventor 张鹏飞刘婷
Owner 苏州光声纳米科技有限公司
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