Overflowing fanning strip for strengthening cooling of motor stator

A motor stator and sector-shaped technology, which is applied to the shape/style/structure of the magnetic circuit and the static parts of the magnetic circuit, etc., can solve the problems affecting the reliability of the service life of the motor, the small radial size of the unit, and the high thermal load.

Inactive Publication Date: 2015-05-13
HARBIN ELECTRIC MASCH CO LTD
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  • Summary
  • Abstract
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Problems solved by technology

[0002] For large-capacity motors, the thermal load of the motor itself is very high. For tubular hydroelectric generators, pumped storage generator motors and some new motors, the thermal load of the motor itself is not very high, but due to the small radial size of the unit, various The heat dissipation area of ​​the part is small, and a large heat load or

Method used

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  • Overflowing fanning strip for strengthening cooling of motor stator
  • Overflowing fanning strip for strengthening cooling of motor stator
  • Overflowing fanning strip for strengthening cooling of motor stator

Examples

Experimental program
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Example Embodiment

[0012] Such as figure 1 , 2 , 3, an over-current fan-shaped plate to enhance the cooling of the motor stator, consisting of fan-shaped plate 1, a number of broken line channel steel 2, a number of long straight channel steel 3 and a number of short straight channel steel 4 Composition, the broken line channel steel 2, the long straight channel steel 3 and the short straight channel steel 4 are all fixed on the sector plate 1 by laser spot welding; they are arranged in a full circle between the stator core sections A stator ventilation groove is formed as a fluid flow passage, and the fluid flowing through the passage can cool the stator coil and the stator core.

[0013] The fan-shaped piece 1 is processed from a 0.65mm thick silicon steel sheet, and an integer number of the fan-shaped pieces 1 can be connected to form a ring.

[0014] A number of evenly distributed slots 5 are machined on the inner circle of the sector 1 for placing stator coils.

[0015] The yoke portion of the s...

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Abstract

The invention relates to an overflowing fanning strip for strengthening cooling of a motor stator. The novel overflowing fanning strip is arranged between stator core sections in a whole-circle way to form a stator ventilation channel, and fluid flowing through the stator ventilation channel can cool a stator coil and a stator core. The ventilation channel forms a plurality of overflowing areas with alternate compression and expansion at a tooth part through broken line overflowing channel steel. Local fluid whirl generated in the overflowing areas is utilized to strengthen the cooling effect of the stator coil and the stator core, the fluid can take away more consumed heat, and the temperature of each heating component is reduced. In addition, the broken line overflowing channel steel enables the wind resistance of the ventilation channel to be higher, so that the total wind volume declines, the ventilation consumption is reduced, and the efficiency of a motor is improved. Through improvement of the cooling effect, the cooling demand of the motor can be met greatly, and greater economic benefits are brought to users through the efficiency improvement.

Description

technical field [0001] The invention relates to an overcurrent fan-shaped sheet for strengthening the cooling of a motor stator. Background technique [0002] For large-capacity motors, the thermal load of the motor itself is very high. For tubular hydroelectric generators, pumped storage generator motors and some new motors, the thermal load of the motor itself is not very high, but due to the small radial size of the unit, various The heat dissipation area of ​​the part is small, and a large heat load or a small heat dissipation area will cause the temperature of each heating part of the motor to rise, which will directly affect the service life and reliability of the motor. Therefore, the research on the heating and cooling of the motor Become more and more important, the current research on the motor cooling system has become the core link of the motor design. [0003] In the process of designing the motor cooling system, the thermal load is an unchangeable parameter, a...

Claims

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Application Information

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IPC IPC(8): H02K1/20
CPCH02K1/20
Inventor 于涛刘宇王韧安志华秦光宇刑广刘双杨越韩荣娜刘维维张浩洋李明宇范吉松
Owner HARBIN ELECTRIC MASCH CO LTD
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