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Heating vacuum high-pressure immersion device and method for stator unit of servo motor

A technology of servo motor and hydraulic device, applied in electromechanical devices, electric components, manufacturing of motor generators, etc., can solve the problems of high insulation requirements and high tank full rate, and achieve good insulation protection, noise reduction, The effect of increasing the protection level

Active Publication Date: 2013-08-21
PHASE MOTION CONTROL NINGBO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The main part of the servo motor includes the servo motor stator unit and the rotor, both of which are directly related to the performance of the product. The servo motor stator unit has high insulation requirements during operation due to its high slot fill rate. The previous packaging method is to use The vacuum pump applies pressure to the immersion liquid, but the immersion liquid cannot fully penetrate the servo motor stator unit, so there are still some defects in the servo motor stator unit, which needs continuous improvement

Method used

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  • Heating vacuum high-pressure immersion device and method for stator unit of servo motor

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] First, the servo motor stator unit placed in the drying tank is heated through the heating system so that the temperature reaches 128°C. Next, take the servo motor stator unit out of the drying tank and put it into the immersion tank, and the vacuum pump unit will evacuate the immersion tank into a vacuum, so that the heated servo motor stator unit is in a vacuum state. Again, introduce the immersion liquid synthesized by the impregnation resin and thinner (R-510-4) for the inverter motor into the immersion tank through the liquid storage tank, and slowly reduce the vacuum state. Then, use an air compressor to pressurize the immersion tank, so that the pressure of immersion is increased to 1 atmosphere, and then draw out the immersion liquid. Finally, the servo motor stator unit immersed in the immersion liquid is put into the drying tank, heated and solidified and condensed by the heating system and ventilation system, and the immersion liquid is condensed.

Embodiment 2

[0027] First, the servo motor stator unit placed in the drying tank is heated through the heating system so that the temperature reaches 50°C. Next, take the servo motor stator unit out of the drying tank and put it into the immersion tank, and the vacuum pump unit will evacuate the immersion tank into a vacuum, so that the heated servo motor stator unit is in a vacuum state. Again, introduce the immersion liquid synthesized by the impregnation resin and thinner (R-510-4) for the inverter motor into the immersion tank through the liquid storage tank, and slowly reduce the vacuum state. Then, use an air compressor to pressurize the immersion liquid tank, so that the pressure of the immersion liquid is increased to 6 atmospheres, and then draw out the immersion liquid. Finally, the servo motor stator unit immersed in the immersion liquid is put into the drying tank, heated and solidified and condensed by the heating system and ventilation system, and the immersion liquid is cond...

Embodiment 3

[0029] First, the servo motor stator unit placed in the drying tank is heated through the heating system so that the temperature reaches 122°C. Next, take the servo motor stator unit out of the drying tank and put it into the immersion tank, and the vacuum pump unit will evacuate the immersion tank into a vacuum, so that the heated servo motor stator unit is in a vacuum state. Again, introduce the immersion liquid synthesized by the impregnation resin and thinner (R-510-4) for the inverter motor into the immersion tank through the liquid storage tank, and slowly reduce the vacuum state. Then, use an air compressor to pressurize the immersion liquid tank, so that the pressure of the immersion liquid is increased to 3 atmospheres, and then the immersion liquid is drawn out. Finally, the servo motor stator unit immersed in the immersion liquid is put into the drying tank, heated and solidified and condensed by the heating system and ventilation system, and the immersion liquid is...

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Abstract

The invention relates to a heating vacuum high-pressure immersion device for a stator unit of a servo motor. The device comprises a heating system, a ventilating system, a vacuum pump unit, a condenser, a fluid reservoir, a high-pressure air reservoir, an immersion liquid tank and a drying tank. A method for immersing the stator unit of the servo motor by using the device comprises the following steps of: (1) heating the stator unit; (2) putting the heated stator unit into the immersion liquid tank and keeping the stator unit in a vacuum state; (3) introducing immersion liquid into the immersion liquid tank from the fluid reservoir and slowly reducing the vacuum degree; (4) pressurizing the immersion liquid tank to increase the pressure of the immersion liquid by 1 to 6 atmospheric pressures; (5) after the immersion liquid is introduced, putting the stator unit immersed with the immersion liquid into the drying tank for heating, solidifying and condensing; and (6) condensing the immersion liquid in the fluid reservoir by using the condenser. The immersion liquid fully infiltrates gaps in the stator unit, so that good insulation protection effect is achieved, the noise source of the servo motor is reduced and protection level is improved.

Description

technical field [0001] The invention relates to the field of servo motor production and manufacturing, in particular to a heating, vacuum and high-pressure impregnation device and method for a servo motor stator unit. Background technique [0002] Servo motors, also known as executive motors, are used as actuators in automatic control systems to convert received electrical signals into angular displacement or angular velocity output on the motor shaft. Servo motors are divided into two categories: DC and AC servo motors. Their main characteristics are that there is no self-rotation when the signal voltage is zero, and the speed decreases with the increase of torque. [0003] Since the 1980s, with the development of integrated circuits, power electronics technology and AC variable speed drive technology, permanent magnet AC servo drive technology has achieved outstanding development. Famous electrical manufacturers in various countries have successively launched their own AC ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K15/12H02K15/10
Inventor 刘学娟邬池华包昉孟令伟董瑜堂
Owner PHASE MOTION CONTROL NINGBO