Motor stator core cooling structure based on gas-liquid phase change, stator core, motor and motor cooling method
A motor stator and stator core technology, which is applied in the direction of cooling/ventilation devices, electrical components, electromechanical devices, etc., can solve the problems of low heat dissipation efficiency and poor cooling effect of motor stator core, etc., and achieve obvious cooling effect and solve The effect of reducing the efficiency of the motor and solving the damage of the equipment
Inactive Publication Date: 2020-02-11
XI AN JIAOTONG UNIV
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Problems solved by technology
[0004] The purpose of the present invention is to provide a motor stator core cooling structure based on gas-liquid phase change and the stator core, motor and motor cooling method to solve the problem of poor cooling effect and low heat dissipation efficiency of the motor stator core in the prior art. high problem
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Embodiment
[0042] The motor of this embodiment includes a stator core, an axial connector 4, a circumferential heat pipe 3 and an evaporation and condensation device 1, the circumferential heat pipe 3 surrounds the inside of the stator core body 2; the axial connector 4 is arranged on the stator core The bottom of the body 2 is connected to all the circumferential heat pipes 3 to avoid the problem of uneven heat dissipation caused by uneven heat distribution and tilting of the motor, resulting in different liquid levels in each heat pipe. The evaporating and condensing device 1 is above the motor frame, and all the circumferential heat pipes 3 are connected to the evaporating and condensing device 1 . The circumferential heat pipe 3 and the axial connector 4 jointly constitute a working pipeline, which contains a phase-change working fluid. The diameters of the plurality of circumferential heat pipes 3 are exactly the same, and they are evenly distributed along the axial direction of the...
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The invention discloses a motor stator core cooling structure based on gas-liquid phase change, a stator core, a motor and a motor cooling method. The cooling structure includes an axial communicationdevice, circumferential heat pipes, and an evaporation condensation device. A number of circumferential heat pipes surround the interior of the stator core body and are evenly distributed along the axial direction of the stator core body. An axial communication device is arranged below the interior of the stator core body and intersects with all the circumferential heat pipes. The evaporation condensation device is arranged above the motor frame, and the circumferential heat pipes are connected with the evaporation condensation device. The circumferential heat pipes and the axial communication device constitute a working pipeline together. The working pipeline is filled with a phase change working medium of certain mass and pressure. According to the invention, the heat inside the motor stator is transferred to the outside of the motor through the gas-liquid phase change of the phase change working medium, which can effectively solve the problems of uneven temperature and high temperature caused by insufficient heat dissipation of the motor stator, and improves the working life and efficiency of the motor.
Description
technical field [0001] The invention relates to the field of motor cooling, in particular to a motor stator core cooling structure based on gas-liquid phase transition, a stator core, a motor and a motor cooling method. Background technique [0002] The motor converts electrical energy into mechanical energy according to the law of electromagnetic induction, and can provide a power source for electrical appliances or various machinery. During the operation of the motor, various losses will inevitably occur, and most of these losses will eventually be converted into heat energy, which will heat up the motor, reduce the efficiency of the motor, and even damage the motor. [0003] At present, the commonly used motor cooling method is ventilation and cooling through the cooling fins on the motor frame and the fan driven by the motor shaft, which has the advantages of simple structure and easy processing. However, due to the low specific heat of the air, the forced convection as...
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Login to View More IPC IPC(8): H02K9/20
CPCH02K9/20
Inventor 刘向阳褚健淳赖添旺何茂刚张颖
Owner XI AN JIAOTONG UNIV