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Motor

A motor and rotor core technology, applied in the field of motors, can solve the problems of motor quality degradation, motor cogging torque increase, deflection angle distortion, etc.

Pending Publication Date: 2021-04-23
LG INNOTEK CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, when the shaft is press fit to the rotor, there is a problem with deflection angle distortion
Therefore, the cogging torque of the motor increases and thus there is a problem that the mass of the motor decreases

Method used

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Embodiment Construction

[0048] Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0049] However, the technical spirit of the present invention is not limited to some embodiments to be described, and can be implemented using various other embodiments, and within the scope of the technical spirit, at least one component in the embodiments can be selectively coupled, replaced And it is used to realize the spirit of technology.

[0050] In addition, unless otherwise clearly and specifically defined by the context, all terms (including technical terms and scientific terms) used herein may be interpreted as having customary meanings for those skilled in the art, and commonly used terms, The meanings of terms such as those defined in commonly used dictionaries will be interpreted by considering the contextual meaning of related technologies.

[0051] In addition, terms used in the embodiments of the present invention are c...

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PUM

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Abstract

An embodiment relates to a motor comprising: a shaft; a rotor connected to the shaft; and a stator disposed outside the rotor, wherein the rotor includes N rotor cores, and the number of holes formed through each of the N rotor cores is at least 2N. Accordingly, the motor allows the rotor to have a skew angle by using the multiple holes formed through the rotor cores.

Description

technical field [0001] This invention relates to motors. Background technique [0002] A motor is a device configured to convert electrical energy into mechanical energy to obtain rotational force, and the motor is widely used in vehicles, home appliances, industrial machinery, and the like. [0003] The motor may include a housing, a shaft, a stator disposed in the housing, a rotor mounted on an outer peripheral surface of the shaft, and the like. In this case, there is an electrical interaction between the stator and the rotor, causing the rotor to rotate. In addition, the shaft also rotates according to the rotation of the rotor. [0004] In particular, the motor can be used in a device for ensuring steering stability of a vehicle. For example, the motor may be used as a motor in an Electronic Power Steering (EPS) system for a vehicle or the like. [0005] The rotor may be formed by stacking a plurality of unit rotors. [0006] In this case, the rotors are formed suc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K1/22
CPCH02K21/16H02K1/278H02K2213/03H02K7/04H02K2201/09H02K2201/06H02K1/22
Inventor 李中揆
Owner LG INNOTEK CO LTD