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Method for detecting motor winding temperature

A winding temperature, motor technology, applied in the field of electronics, can solve the problems of poor temperature accuracy inside the motor, and achieve the effect of reducing costs and accurate test results

Inactive Publication Date: 2017-05-31
SICHUAN CHANGHONG ELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the deficiencies in the prior art, the purpose of the present invention is to provide a method for detecting the temperature of the motor windings, which solves the technical problem that the temperature sensor is used to detect the internal temperature of the motor in the air conditioner with poor accuracy

Method used

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  • Method for detecting motor winding temperature

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Embodiment

[0030] Such as Figure 1 ~ Figure 3 As shown, a method for detecting the temperature of a motor winding includes a first determination module 201 and a second determination module 202. The first determination module 201 is used to determine the rate of change of magnetic flux and the rate of change of resistance corresponding to the motor. The first determination The module 201 includes a magnetic flux detection module and a resistance detection module, the magnetic flux detection module is used to detect the real-time magnetic flux of the motor, the resistance detection module is used to detect the real-time resistance value of the motor, and the second determination module 202 is used to calculate and determine the current temperature of the motor value;

[0031] Such as figure 1 As shown, the first step (S11) of the present invention is to determine the rate of change of magnetic flux and the rate of change of resistance value in the air conditioner, and then the second st...

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Abstract

The invention discloses a method for detecting motor winding temperature. The method for detecting the motor winding temperature uses a device which comprises a first confirmation module and a second confirmation module, wherein the first confirmation module is used for confirming magnetic flux variation rate and resistance variation rate, corresponding to a motor, the interior of the first confirmation module comprises a magnetic flux detection module and a resistance detection module, the magnetic flux detection module is used for detecting real-time magnetic flux of the motor, the resistance detection module is used for detecting real-time resistance value of the motor, and the second confirmation module is used for calculating and confirming current temperature value of the motor. The method for detecting the motor winding temperature solves the technical problem that accuracy is poor when a temperature sensor is used for detecting inner temperature of the motor in an air conditioning device.

Description

technical field [0001] The invention relates to the field of electronic technology, in particular to a method for detecting the temperature of a motor winding. Background technique [0002] With the advancement of science and technology, more and more electronic products have entered people's daily life, improving people's quality of life. Among them, the air conditioner is an adjustment device that can process the temperature, purity, and air velocity of the air in a closed space. The air conditioner sucks low-temperature and low-pressure refrigerant gas from the suction pipe through the compressor, drives the piston to compress it through the operation of the motor, and discharges high-temperature and high-pressure refrigerant gas to the exhaust pipe to provide power for the refrigeration cycle. [0003] In practical applications, with the operation of the compressor, the temperature of the motor continues to increase gradually. Therefore, in order to ensure the normal op...

Claims

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Application Information

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IPC IPC(8): G01K7/00G01R31/34
CPCG01K7/00G01R31/346
Inventor 阳丹刘东高向军李越峰
Owner SICHUAN CHANGHONG ELECTRIC CO LTD