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Light motor

A kind of electric motor, light and handy technology, applied in the field of electric motor, can solve the problems such as unfavorable vehicle miniaturization, simplification, increase of material and assembly cost, easy to be stained with dust of the motor, and achieve the reduction of material cost, simple structure, and reduction of production and maintenance costs Effect

Active Publication Date: 2012-12-26
YINGFANDI BEIJING SCI & TECH LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] 1. The structure is very complicated. Whether it is chain drive, gear drive or friction drive, the motor and the wheel are separated. Therefore, various parts must be combined, which increases the cost of materials and assembly
[0007] 2. Low efficiency, high noise, high failure rate and inconvenient maintenance
[0008] 3. The separation of the motor and the wheels is not conducive to the miniaturization and simplification of the vehicle model
And the exposed motor is easy to be stained with dust, and it is easy to cause damage to the motor due to oxidation

Method used

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Embodiment Construction

[0038] see figure 1 , figure 2 As shown, it is a preferred embodiment of the lightweight motor 1 of the present invention, including a stator 2, a rotor 3 and left and right side covers 4, 4'.

[0039] The stator 2 includes a silicon steel sheet group 21 and an inner bushing 22 . The silicon steel sheet group 21 is formed by stacking a plurality of silicon steel sheets. The left and right sides of the silicon steel sheet group 21 are respectively provided with insulating sheets 211 to sandwich the silicon steel sheet group 21 therein. A plurality of slots 212 are annularly provided on the periphery of the silicon steel sheet group 21 , and a rib 213 is formed between each adjacent slot 212 for the winding of the coil group 23 . Moreover, the silicon steel sheet group 21 is provided with a central hole 214 , and a plurality of grooves are annularly arranged on the periphery of the central hole 214 , and the grooves are used as the first embedding portion 215 .

[0040] The ...

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PUM

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Abstract

The invention provides a light motor which comprises a stator, wherein a silicon steel sheet group of the stator is provided with a center hole for sleeving an inner bushing, and the inner bushing is provided with a shaft hole for coupling a motor shaft, thereby lowering the material cost and reducing the weight. A rotor is sleeved on the stator and is annularly provided with a plurality of magnets, and a left cover and a right cover are respectively positioned at two sides of the stator and rotor. Thus, after the current flows through a coil group of the stator, the electromagnetic force can be generated to drive the rotor to rotate; and because a left inner cavity is formed at the left side of the inner bushing, a right inner cavity is formed at the right side of the inner bushing and the left inner cavity and the right inner cavity are mutually communicated, the heat can be dissipated effectively, thereby prolonging the service life of the motor.

Description

technical field [0001] The invention relates to a motor, especially a lightweight motor in which the motor shaft and the hollow inner bushing are fixed together with the silicon steel sheet to effectively dissipate heat, reduce material cost, and reduce weight to reduce power consumption. Background technique [0002] Various common electric motors on the market all include a stator and a rotor provided with magnets structurally, wherein the stator is mainly composed of a plurality of overlapping silicon steel sheets and coil groups wound around the periphery of the silicon steel sheets. After electrification, let the current flow through the coil group of the stator, and generate electromagnetic force to drive the rotor to rotate. [0003] During the manufacture of the above-mentioned silicon steel sheet, in addition to forming a plurality of coil-winding areas on the plate surface, only one shaft hole is reserved for the shaft of the power supply to pass through. In this ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K21/12H02K21/02H02K1/12H02K1/27
Inventor 黄文弘
Owner YINGFANDI BEIJING SCI & TECH LTD
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