Drop-out fuse with wireless passive temperature sensing device

Abstract

The invention provides a drop-out fuse with a wireless passive temperature sensing device. The drop-out fuse comprises a drop-out fuse body and a clamping sleeve mounted on the drop-out fuse body; a temperature sensor is mounted on the clamping sleeve; the temperature sensor comprises a metal casing, an RFID tag antenna and an RFID temperature measuring chip; the RFID tag antenna is mounted in themetal casing; the RFID temperature measuring chip is mounted on the metal casing and penetrates through the RFID tag antenna; the RFID tag antenna is internally provided with a mounting cavity; a metal inner ring is mounted in the mounting cavity; a plurality of sponge pads are arranged on the side, close to the RFID tag antenna, of the metal inner ring; the sponge pads are in contact with the RFID tag antenna; the metal inner ring is internally filled with a sponge filling layer; a metal rod is mounted in the metal inner ring; and a support plate is connected between the metal rod and the RFID tag antenna. According to the device, the recognition distance between a tag and an external reader is improved, the detection stability is good, and the detection data is reliable.

Description

technical field [0001] The invention relates to the technical field of maintenance and operation tools for electric equipment, in particular to a ring with a wireless passive temperature sensing device. Background technique [0002] Linker is the insurance between the 10 / 35kv high voltage in the power distribution room and the switchboard or transformer, also called drop-out insurance and drop-out fuse. Generally, three are installed, and it forms a 45-degree angle with the ground when the switch is closed. Once the fuse inside is blown, it will be in an upside-down state, which can be seen from a long distance, so it can be found during maintenance. The structure of the gram is complex, there are many metal parts, and the space between the parts is narrow. The conventional temperature measuring device cannot be successfully installed, and the stability after installation is poor. In actual use, the temperature of the gram needs to be monitored. During the measurement, the ...

AI Technical Summary

Problems solved by technology

The structure of the gram is complex, there are many metal parts, and the space between the parts is narrow. The conventional temperature measuring device cannot be successfully installed, and the stability after installation is poor. In actual use, the temperature of the gram needs to be monitored. During the measurement, the conventional temperature measuring device is installed on the ring. Due to the poor installation stability and the low signal transmission efficiency of the conventional temperature measuring device, the accuracy of the temperature measurement data is poor and cannot meet the needs of actual use. Therefore, it is urgent to develop A kind of linker with wireless passive temperature sensing device to solve the problems in the prior art

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