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Brushless DC motor

A brushed DC motor and rotor core technology, which is applied in the manufacture of motor generators, electric components, electrical components, etc., can solve problems such as distortion, improve performance, improve reliability, and prevent distortion.

Inactive Publication Date: 2012-08-22
SAMSUNG ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention is proposed to solve the above-mentioned problems. The object of the present invention is to provide a brushless DC motor capable of preventing the distortion phenomenon occurring in the maximum value part and the minimum value part of the induced voltage.

Method used

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Experimental program
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Embodiment Construction

[0034] Hereinafter, the present invention will be described in detail with reference to the drawings.

[0035] figure 1 A sectional view showing a schematic structure of a brushless DC motor according to an exemplary embodiment of the present invention, figure 2 for right figure 1 An enlarged cross-sectional view of the curved hole portion, image 3 for right figure 2 The magnified cross-sectional view of the inclined part.

[0036] The brushless DC motor 100 provided by the present invention includes a stator 110 , a rotor core 120 , an anti-leakage hole 140 , and a bending hole 150 .

[0037] Such as figure 1 As shown, the stator 110 provided according to the exemplary embodiment is substantially formed in a cylindrical shape by laminating magnetic steel sheets. The stator 110 is formed with a plurality of grooves 113 . The stator 110 further includes a yoke 111 , teeth T and a coil 117 .

[0038] Such as figure 1 As shown, the yoke 111 forms the outer shape of th...

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PUM

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Abstract

The invention discloses a brushless DC motor. According to the invention, the distortions of the maximum and minimum of the induction voltage can be prevented, therefore the performance of the motor can be improved. The brushless DC motor provided by the invention, comprises a stator forming multiple grooves and teeth, a rotator core arranged in the stator and forming a magnet embedding hole and a magnetic leak-proof hole, and a permanent magnet arranged in the magnet embedding hole, wherein the magnetic leak-proof hole is provided a hole curved from the periphery of the magnetic leak-proof hole to the inside of the rotator core along with the periphery of the rotator core and the periphery of the magnetic leak-proof hole separated from the periphery of the rotator core.

Description

technical field [0001] The invention relates to a brushless direct current motor, in particular to a brushless direct current motor with an improved anti-leakage magnetic hole structure. Background technique [0002] In general, driving devices are widely used in industrial fields such as the production of home appliances and industrial equipment. A typical example of such a drive device is an electric motor driven by electricity. [0003] There are many types of electric motors depending on their purpose of use. Among them, the brushless direct current motor (Brushless Direct Current Motor) has the following characteristics in particular: it does not have mechanical contact parts such as commutators and brushes, can reduce volume and weight, and can easily control speed. Therefore, it not only prevents electrical wear and mechanical wear and noise, but also has a relatively longer service life than a motor with brushes, so its application range is gradually expanding. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K29/00H02K1/27
CPCH02K1/165H02K29/03H02K1/2766H02K1/146H02K2213/03H02K2201/03
Inventor 金洪正
Owner SAMSUNG ELECTRONICS CO LTD