Structure increasing cast aluminum rotor iron core ventilation area

A technology of iron core ventilation and rotor iron core, which is applied in the shape/style/structure of the magnetic circuit, rotating parts of the magnetic circuit, etc., can solve the problems of poor heat dissipation effect, and improve the heat dissipation capacity, performance parameters and force performance index guarantee. , The effect of increasing the working air volume

Inactive Publication Date: 2014-04-23
CHONGQING ELECTRIC MACHINE FEDERATION
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Problems solved by technology

[0003] The invention provides a structure for increasing the ventilation area of ​​the cast aluminum rotor core to solve the problem of poor heat dissipation effect of the existing cast aluminum rotor core

Method used

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  • Structure increasing cast aluminum rotor iron core ventilation area

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Embodiment Construction

[0008] Below in conjunction with accompanying drawing and specific embodiment the present invention will be described in further detail:

[0009] Such as figure 1 The shown structure for increasing the ventilation area of ​​the cast aluminum rotor core includes a plurality of stator core segments 1 arranged at intervals and a plurality of rotor core segments 2 arranged at intervals, and the stator core segments 1 and rotor core segments 2 are arranged opposite to each other. The two ends of the rotor core section 2 far away from the stator core section 1 are provided with an air inlet channel 3, and an air channel is provided between each stator core section and each rotor core section, and the air inlet channel 3 is arranged between each stator core section and each rotor core section. Wind pressure elements 6 are arranged on the air passage, and the width of the radial air passage 4 between each rotor core segment is greater than the width of the radial air passage 5 between...

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Abstract

The invention discloses a structure increasing cast aluminum rotor iron core ventilation area so that a problem that existing cast aluminum rotor iron cores are poor in heat-radiating effect is solved. The structure comprises multiple stator iron core segments which are arranged in a spacing way and multiple rotor iron core segments which are arranged in the spacing way. The stator iron core segments and the rotor iron core segments are oppositely arranged. One side, which is away from the stator iron cores, of the rotor iron cores is provided with air inlet channels. The structure is characterized in that width of each radial air channel between the rotor iron core segments is greater than width of each radial air channel between the stator iron core segments. Advantages of the air path structure of a conventional symmetrical radial ventilation motor are maintained, and width of the rotor radial air channels aligning with the stator iron core air channels is increased under the situation of maintaining effective length of the stator iron cores and the number of the radial air channels so that motor performance parameters and force and energy indexes are profoundly guaranteed.

Description

technical field [0001] The invention relates to motor technology, in particular to a structure for increasing the ventilation area of ​​a cast aluminum rotor core. Background technique [0002] For a motor with a symmetrical radial ventilation system, the highest temperature of the winding and core will occur in the middle of the motor, that is, the motor core. The heat converted from the copper loss in the middle of the stator winding of the motor and the aluminum loss of the rotor guide bar will be dissipated into the effective air path of the motor through the radial air ducts on the stator and rotor cores, and then taken away by the air pressure components of the motor, so that The motor operates within a stable temperature rise limit for a long time under rated conditions. The squirrel cage rotor motor with cast aluminum rotor core is affected by the material characteristics and manufacturing process of the cast aluminum rotor. Compared with the copper row rotor, th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K1/32
Inventor 汪同斌陈昌琼孙建军袁飞雁杜宾
Owner CHONGQING ELECTRIC MACHINE FEDERATION
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