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motor

A component and permanent magnet technology, applied in the direction of electromechanical devices, electrical components, electric components, etc., can solve the problems of increasing the rotational load of the motor, reducing the working efficiency of the motor, and reducing the stability of the rotor assembly of the motor

Active Publication Date: 2020-10-23
ZHUHAI PANLEI INTELLIGENT TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the magnetic field strength between the permanent magnet and the teeth of the motor is relatively concentrated, which reduces the stability of the rotor assembly of the motor, increases the rotational load of the motor, and reduces the working efficiency of the motor.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0029] Such as figure 1 As shown, the motor 100 includes a rotor assembly 101 and a stator assembly 102 . The stator assembly 102 has a winding 103 and a magnetically permeable element 1021 , the magnetically permeable element 1021 is provided with a tooth 104 , and a crown 105 is formed on one end of the tooth 104 close to the permanent magnet. Along the radial direction of the motor 100 , the magnetic pole array 106 is equipped with a predetermined number of permanent magnets 1061 , and the permanent magnets 1061 of the magnetic pole array 106 are surface-attached on the inner surface of the rotor bracket 1011 of the rotor assembly 101 . Along the width direction of the permanent magnet 1061 , the thickness of the middle part of the permanent magnet 1061 is greater than the thickness of the two ends of the permanent magnet. The magnetic pole array 106 is located outside the tooth crown 105 , the working surface 107 of the permanent magnet 1061 close to the tooth crown 105 i...

no. 2 example

[0039] This embodiment is basically the same as the first embodiment, the difference lies in the number of winding arrays of the stator assembly and the number of magnetic pole arrays of the rotor assembly.

[0040] Such as Figure 8 As shown, the motor 200 is a dual-rotor motor, including a first magnetic pole array 201 , a second magnetic pole array 202 and a magnetically permeable element 203 of the stator assembly. The air gap between the permanent magnets of the first magnetic pole array 201 and the outer tooth crown 2031 of the magnetic permeable element 203, and the air gap between the permanent magnets of the second magnetic pole array 202 and the inner tooth crown 2032 of the magnetic permeable element 203 are all in waves The shape is evenly distributed along the circumference of the motor.

[0041] The motor can also be a double stator motor. Such as Figure 9 As shown, it includes a first magnetically permeable element 301 , a second magnetically permeable eleme...

no. 3 example

[0044] This embodiment is basically the same as the first embodiment, the difference is that teeth of different shapes are formed on the magnetic permeable element.

[0045] Such as Figure 11 , Figure 12 As shown, the magnetic permeable element 500 includes a tooth 501 , a crown 502 and a yoke 503 . The tooth width of the tooth 501 near the tooth crown 502 is greater than the tooth width of the tooth 501 near the yoke 503 . The tooth height of the tooth 501 close to the permanent magnet 504 is smaller than the tooth height of the tooth 501 close to the yoke 503 . At the same time, ensure that the cross-sectional area of ​​the part of the tooth 501 between the tooth crown 502 and the yoke 503 is equivalent. It is beneficial to expand the slot width of the magnetic permeable element 500, to increase the conductive cross-sectional area of ​​the winding, to increase the slot fullness rate, to increase the effective side length, to reduce resistance, to reduce copper consumpti...

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Abstract

The invention provides a motor. The motor comprises a stator and a rotor, wherein the stator comprises windings and teeth, the rotor comprises permanent magnets, and air gaps are formed between coronas of the teeth and the permanent magnets, and are distributed in wavy shapes in the circumferential direction of the motor. When the permanent magnets and the teeth relatively move, large transition force can be created between the permanent magnets and the teeth through the wavy air gaps, transition is stable, and the working efficiency of the motor is improved.

Description

technical field [0001] The invention relates to the field of motors, in particular to a motor with a novel magnetic circuit structure. Background technique [0002] A motor is a common driving device in daily life, which can convert electrical energy into mechanical energy. The motor includes a stator assembly and a rotor assembly, and the rotation of the rotor assembly relative to the stator assembly is realized by means of electromagnetic transformation, and the rotor assembly outputs power through a rotating shaft. However, the magnetic field strength between the permanent magnet and the teeth of the motor is relatively concentrated, which reduces the stability of the rotor assembly of the motor, increases the rotational load of the motor, and reduces the working efficiency of the motor. Contents of the invention [0003] The invention provides a motor with high working efficiency. [0004] To achieve the above object, the present invention provides a motor with a nov...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K21/22H02K21/16H02K1/27
CPCH02K1/278H02K1/2786H02K21/16H02K21/22H02K2201/03
Inventor 何春旺
Owner ZHUHAI PANLEI INTELLIGENT TECH CO LTD
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