Temperature measurement type composite nut

Abstract

The invention provides a temperature measurement type composite nut, and the nut comprises a main cylinder, a supporting ring and a sleeve; the main cylinder comprises a first internal thread and a thread section; the rotation direction of the thread section is opposite to that of the first internal thread, the main cylinder and the supporting ring are made of wave absorbing materials, the sleevecomprises an inner cylinder body and an outer cylinder body, and the inner cylinder body is made of first long fibers and second long fibers; the first section of one part of the first long fiber forms a second internal thread, the first section of the other part of the first long fiber forms a first external thread, the second long fiber surrounds between the second internal thread and the firstexternal thread along the circumferential direction, the second section of the first long fiber forms a third internal thread, and the outer side of the third internal thread is wound with a main antenna; the main antenna is connected with a passive temperature measurement chip, a containing cavity is formed in the outer cylinder, a radiation ring is arranged in the containing cavity and electrically coupled with the main antenna, and a thermal expansion medium is arranged between the radiation ring and the containing cavity. The nut has the advantages of being convenient to install and high in anti-jamming capability.

Description

technical field [0001] The invention relates to the technical field of temperature measurement, in particular to a temperature measurement type composite nut. Background technique [0002] As the key nodes of electrical equipment such as ring network cabinets and high-voltage cable branch boxes, joints are prone to failures such as aging, poor contact, or overloading, which will cause excessive heat generation at the joints, and even cause the cables to catch fire and damage electrical equipment. In order to prevent electrical equipment from being damaged, it is necessary to warn the fire risk of the cable, and monitoring the temperature change of the joint is an effective method. [0003] The traditional cable temperature detection method uses a hand-held thermometer to detect the temperature of the joint at regular intervals. This method is inefficient and does not have real-time performance. Human error, in addition, high-voltage lines have a certain degree of danger to ...

AI Technical Summary

Problems solved by technology

[0003] The traditional cable temperature detection method uses a hand-held thermometer to detect the temperature of the joint at regular intervals. This method is inefficient and does not have real-time performance. Human error, in addition, the high-voltage line has a certain danger to the people close to it

Most of the existing cable temperature detection equipment adopts the method of electric sensing, which can detect the temperature change of the joint in real time, and send the measured data to the background through the electric signal, which solves the problems of efficiency and real-time performance. However, this type of cable temperature detection equipment has disadvantages such as inconvenient installation and weak anti-interference ability.

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