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A test method for liquid-cooled motor

A technology of liquid-cooled motor and test method, applied in the direction of motor-generator testing, etc., can solve the problems of damage to the liquid-cooled casing, cooling pipeline, motor stator, motor rotor, etc., and achieve the effect of meeting product-related performance testing requirements.

Active Publication Date: 2017-10-17
JINCHENG NANJING ELECTROMECHANICAL HYDRAULIC PRESSURE ENG RES CENT AVIATION IND OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

After the performance test, the cooling medium needs to be discharged, and the motor should be disassembled after removing the cooling pipeline. The disassembly process may also damage the liquid cooling shell and cooling pipeline, especially the motor stator and rotor.

Method used

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  • A test method for liquid-cooled motor

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] The outer diameter of the stator of a certain type of motor is 158mm, the length of the stator core of the motor is 57mm, and the rated output power is 22kW; the parameters of the designed motor shell are as follows:

[0017] The small diameter of the motor rear housing flange is 156mm; the major diameter of the motor rear housing flange is 158.5mm; the distance from the motor rear housing flange to the opening is 56mm; the outer diameter of the motor rear housing is 166mm; the inner edge of the motor front housing opening is 154mm; the opening of the water tank installation hole is 167mm.

[0018] The ambient temperature is 25°C, the cooling water temperature is 22°C, and the motor works at 22kW output power for 10 minutes after starting. The measured motor stator winding temperature is 95°C, which meets the product function test requirements.

Embodiment 2

[0020] The outer diameter of the stator of a certain type of motor is 100mm, the length of the stator core of the motor is 80mm, and the rated output power is 9kW; the parameters of the designed motor shell are as follows:

[0021] The small diameter of the motor rear housing flange is 98mm, the major diameter of the motor rear housing flange is 100.4mm, the distance from the motor rear housing flange to the opening is 78mm, the outer diameter of the motor rear housing is 108mm, and the inner edge of the motor front housing opening is 95mm, the tank mounting hole opening is 109mm.

[0022] The ambient temperature is 22°C, the cooling water temperature is 20°C, and the motor works at an output power of 9kW for 10 minutes after starting. The measured motor stator winding temperature is 82°C, which meets the product function test requirements.

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Abstract

The present invention designs a test method for liquid-cooled motors, which is used for rapid test detection of liquid-cooled motors designed for mechatronics, and adopts a simple external cooling method to replace the complex cooling structure and liquid-cooled circulation system of the original liquid-cooled motors, reducing the number of motors. The risk of damage caused by disassembly and assembly can meet the short-term high-power cooling requirements of the motor.

Description

technical field [0001] The invention discloses a liquid-cooled motor test method, which is suitable for rapid test and detection of a liquid-cooled motor stator and a motor rotor with electromechanical integration design. Background technique [0002] Due to its high power density and high heat generation during operation, the liquid-cooled motor designed for mechatronics cannot complete performance testing without corresponding cooling conditions. The conventional design of liquid-cooled test fixtures requires the design of liquid-cooled housings and cooling pipe joints. Circulating water system. Before the performance test, put the motor into the liquid-cooled housing, install the corresponding cooling pipeline, and feed the cooling medium. After the performance test, the cooling medium needs to be discharged, and the motor should be disassembled after removing the cooling pipeline. The disassembly process may also damage the liquid cooling shell and cooling pipeline, esp...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/34
Inventor 周利华刘娅如
Owner JINCHENG NANJING ELECTROMECHANICAL HYDRAULIC PRESSURE ENG RES CENT AVIATION IND OF CHINA
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