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Rotor of variable reluctance dynamo

A magnetoresistive, rotor technology, applied in the direction of magnetic circuit rotating parts, magnetic circuit shape/style/structure, electrical components, etc., can solve the problem of resin molding part melting, inability to fully dissipate heat, and thick resin molding part. And other issues

Inactive Publication Date: 2008-11-19
LG ELECTRONICS (TIANJIN) APPLIANCES CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, for the rotor of the conventional switched reluctance type motor as described above, since the resin molded part (131) is in the shape of an arc, this arc has a certain diameter (D1), and it is relative to the rotor core ( 121) is located on the same circumference as the rotor core (121), so there is a problem that the thickness (t1) of the resin molded part (131) is large, so it cannot rotate the rotor core (121) The heat generated during the process is fully dissipated, and thus the rotor core (121) accumulates too much heat, causing the resin molding part (131) to deform, and in severe cases, the resin molding part (131) may even be melted

Method used

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  • Rotor of variable reluctance dynamo
  • Rotor of variable reluctance dynamo
  • Rotor of variable reluctance dynamo

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Embodiment Construction

[0025] Such as Figure 4 , 5 , shown in 6, the rotor of the switched reluctance motor of the present invention comprises the following parts, namely the rotating shaft (11); the rotor iron core (21), its center forms the shaft hole that can make the above-mentioned rotating shaft (11) insert (22) has a plurality of teeth (23) on its outer ring, and these teeth (23) protrude outward along the radial direction, and are spaced apart from each other along the circumferential direction; the resin molding part (31), which is on the teeth The space between (23) is filled with synthetic resin, and its central area is depressed toward the center of the above-mentioned rotor core (21).

[0026] The rotor core (21) is made of a plurality of steel plates insulated and superimposed. These steel plates have the following structure, that is, in order to allow the rotation shaft (11) to be inserted, a through shaft hole (22) is formed at the center of them, and a shaft hole (22) is formed on...

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Abstract

The disclosed rotor includes rotation axis, rotor core and resin molding part. Axle hole is formed in center of the rotor core for rotation axis to be inserted. There are multiple teeth parts on outside of the rotor core. The teeth parts are extruded out along radius direction, and there is a certain interval along circumferential direction between teeth parts. Synthetic resin is filled between teeth parts. Comparing with adjacent teeth part, the synthetic resin is depressed towards center. The structure in favor of heat elimination prevents distortion of resin caused by accumulation of excess quantity of heat.

Description

technical field [0001] The invention relates to a rotor of a switched reluctance motor. Background technique [0002] Compared with ordinary motors, switched reluctance motors (Switched Reluctance Motors; SRM) have the advantages of simple structure, low price, high torque density and high efficiency, but they also have the disadvantage of large vibration noise due to torque ripple . [0003] This switched reluctance motor is characterized in that both its stator and rotor have several magnetic poles or teeth, the stator has coils (windings), and the rotor has no coils or magnets. The coils of the stator facing the teeth are connected in series, which can detect the position of the rotor to control the current on (On) or off (Off) of each phase, so that the rotor rotates. [0004] Such as figure 1 , 2 , 3, the rotor of the transformed reluctance motor has the following structure, that is, the rotating shaft (111); the rotor core (121), which has several teeth (123), and ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K29/00H02K1/22
Inventor 金昌涉
Owner LG ELECTRONICS (TIANJIN) APPLIANCES CO LTD