Preparation process of wireless temperature sensor utilizing electromagnetic self-energizing

Abstract

The invention discloses a preparation process of a wireless temperature sensor utilizing electromagnetic self-energizing. The wireless temperature sensor includes a wireless temperature sensor body, an alloy band and an alloy band fixing structure, wherein the wireless temperature sensor body includes an upper cover, a lower cover, a shielding board and a PCB, two side walls of the upper cover areprovided with through grooves communicating with each other, an inner wall of the upper cover is provided with an upper cover slot, the lower cover is circumferentially provided with a pin matched with the upper slot, and the PCB is provided with an electronic component. The preparation process includes steps of coil framework winding, electronic component welding, assembling, glue injection andtesting. The preparation process is advantaged in that super-low power consumption and micro electromagnetic energy collection are achieved, cells and radio frequency communication are not needed, advantages of environmental friendliness, free maintenance, electrical complete isolation, convenient mounting, strong anti-interference capability, reliable work and small volume are further achieved, atemperature measurement problem in a high voltage state can be well solved, the acquired temperature can be transmitted to a monitoring terminal in real time through radio frequency communication, and intermittent and accurate measurement is achieved.

Description

Technical field [0001] The invention relates to the technical field of monitoring equipment preparation technology, in particular to a preparation technology of a wireless temperature sensor using electromagnetic self-power. Background technique [0002] In recent years, with the continuous growth of the economy, the demand for power has increased, which has enabled the power system to develop in the direction of large capacity, high voltage and intelligence, and the safe and efficient operation of the power system is closely related to the healthy development of the social economy and the people. Stability of life. [0003] In electrical equipment such as various high and low voltage switch cabinet contacts and contacts, knife switches, high voltage cable intermediate heads, dry-type transformers, low voltage high current cabinets and other electrical equipment, excessive temperature rise caused by factors such as material aging, poor contact, and current overload High and unsuit...

AI Technical Summary

Problems solved by technology

[0003] In various electrical equipment such as contacts and contacts of high and low voltage switchgear, knife switch, intermediate head of high voltage cable, dry type transformer, low voltage and high current cabinet, etc., the temperature rise caused by factors such as material aging, poor contact and current overload High and unsuitable for detection of hidden dangers of failure, the electrical equipment is easily damaged, when the electrical equipment fails to work, it will cause insufficient supply of electric energy demand, and the resulting economic losses will be immeasurable

At present, there are two kinds of temperature measurement technologies for the contact temperature of electrical equipment: manual measurement and wired detection; manual measurement is very dangerous, because these detected devices are high voltage and not easy to touch, it is easy to cause damage to the measurement personnel. damage, and manual detection cannot be operated in real time, and the detection temperature accuracy is low; wired detection means that the temperature detection sensor and the host are connected by wire

This method increases the difficulty of on-site wiring for engineers, the sensitivity of measurement is low, and the high and low voltage isolation is not complete, and the anti-interference performance is poor.

[0004] At present, various wireless temperature sensors have been developed, such as battery power supply and temperature difference power supply. These wireless temperature sensors generally require high power consumption, require frequent battery replacement, and are troublesome to maintain.

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