Plug temperature measurement sensor

By setting multiple temperature sensors and power-collecting capacitors at different parts of the metal component of the plug temperature sensor, the problem of large single-point detection error in the existing technology is solved, realizing accurate measurement of the temperature of T-type cable joints and stable power supply, thus improving power grid safety.

CN224398842UActive Publication Date: 2026-06-23HENAN EPRI GAOKE GROUP CO LTD
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Patent Information

Application Number
CN202521792436.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-08-22
Publication Date
2026-06-23
Estimated Expiration
2035-08-22

AI Technical Summary

Technical Problem

Existing temperature measuring plugs can only perform single-point detection, resulting in large errors in the detection results. They cannot accurately reflect the actual temperature at the electrical connection point of the T-type cable joint, which poses a potential threat to the safe operation of the power grid.

Method used

Two temperature sensors are installed at different parts of the metal part of the end cap temperature sensor. The first and second temperature sensors are installed at the abutment ring and the threaded sleeve, respectively. A power-collecting capacitor is formed by the metal cover to provide a stable power supply. The sensor design optimizes the structure to reduce errors. The spherical temperature measuring part and the groove are designed to increase the contact area and stability.

Benefits of technology

This technology improves the accuracy of temperature detection at different locations on cable joints, reduces errors, provides a stable power supply, enhances the reliability and anti-interference capabilities of the sensor, and ensures the accuracy of temperature data and the safety of the power grid.

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Abstract

The utility model provides a plug temperature measurement sensor comprising a plug main body which is internally provided with an assembly cavity; the metal piece is assembled in the assembly cavity and comprises an abutting ring and a threaded sleeve which are respectively used for abutting against and fixing the cable joint; the metal cover and the metal piece form a power taking capacitor to supply power to the sensor; the circuit board is arranged between the metal cover and the metal piece; the first temperature sensor is electrically connected with the circuit board, and a first temperature measuring head of the first temperature sensor abuts against the abutting ring; the second temperature sensor is electrically connected with the circuit board, and a second temperature measuring head of the second temperature sensor abuts against the threaded sleeve. The two temperature sensors are arranged at different parts of the metal piece, temperatures of different positions of the cable joint can be detected, detection data are mutually referenced and verified, the detection accuracy is effectively improved, the problem of single-point detection errors is solved, the actual temperature of the electrical contact of the T-shaped cable joint can be reflected more accurately, and the detection accuracy is improved. Reliable temperature monitoring data are provided for safe operation of a power grid, the structure is optimized, and multiple functions are achieved in a limited space.
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