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Silicon-free steel sheet motor

A silicon steel sheet and coil layer technology is applied in the field of silicon-free steel sheet motors, which can solve the problems of many coils and magnetic blocks, low power conversion efficiency, low utilization rate, etc., and achieves thin stator thickness, reduced usage, and high magnetic permeability. Effect

Active Publication Date: 2018-05-11
江苏中科磁能科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The existing DC motor has low conversion efficiency of electric energy, more consumables for coils and magnetic blocks, and low utilization rate

Method used

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  • Silicon-free steel sheet motor
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  • Silicon-free steel sheet motor

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Experimental program
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Effect test

Embodiment Construction

[0027] Such as Figure 1-10 As shown, the silicon-free steel sheet motor of the present invention includes an annular casing 1, a stator 10 coaxially arranged in the casing, a rotor 12, a pair of bearing housings 7 matched with the rotating shaft 9 bearings of the rotor 12, and each bearing The seat 7 is fixed in the annular casing 1 through a corresponding cover plate, and each coil layer on the stator includes 18, 21, 24 or 27 sector-shaped planar coils 15 .

[0028] There are 2-20 permanent magnet blocks 3 on the rotor 12, distributed symmetrically with the center of the circle.

[0029] The coil layers are integrated by hot pressing of plastic composite materials, and the plastic contains 20wt% or 10wt% or 30wt% or 40wt% or 50wt% of magnetic powder. The magnetic powder is one or more of iron oxide magnetic powder, cobalt-iron oxide magnetic powder and chromium dioxide magnetic powder.

[0030] The outer side of the stator 10 is provided with a magnetically permeable cove...

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Abstract

The invention relates to a motor with no silicon steel sheet. The motor comprises a stator and a rotor. A plurality of permanent magnetic blocks are evenly distributed on the circumference of the rotor. Every two adjacent magnetic blocks are opposite in polarity. A Hall sensor is arranged on the inner side face of the stator. The motor with no silicon steel sheet is characterized in that coil layers are hot-pressed into a whole by adopting plastic composite materials which contain magnetic attracting powder. The multiple coil layers are hot pressed through the plastic composite materials to form the annular stator, and the composite materials contain the magnetic attracting powder and are magnetic conductive only when the coils are powered on and good in insulation performance. Accordingly, no magnetic leakage exists, the magnetic circuit impedance is small, and the magnetic permeability is high, so that the number of coil turns can be greatly reduced, and adopted copper wires are reduced. Compared with a traditional brushless permanent magnet motor, on the condition of the same power, the total number of the coil turns can be reduced by 1 / 3, and the number of adopted magnetic blocks is reduced by 1 / 2; on the condition of the same energy consumption, the motor output power is improved by 15-20%, and the effective power reaches 88%.

Description

technical field [0001] The invention relates to a silicon-free steel sheet motor. Background technique [0002] In the existing DC motor, the conversion efficiency of electric energy is on the low side, the consumables of the coil and the magnetic block are many, and the utilization rate is low. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a silicon-free steel sheet motor, which can greatly reduce the consumption of coils and magnetic blocks. [0004] In order to solve the above technical problems, the present invention provides a silicon-free steel sheet motor, which includes a coaxial and parallel stator and rotor; the stator includes: two or three coil layers distributed in parallel, and each coil layer consists of multiple The planar sector coils connected in series are evenly distributed around; the rotor is evenly distributed with multiple permanent magnet blocks on the same circumference, and the polar...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K3/02H02K3/28H02K1/27H02K29/06H02K16/04
CPCH02K1/145H02K1/2753H02K3/02H02K3/28
Inventor 陈国芳陈俊
Owner 江苏中科磁能科技有限公司
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