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Electric bicycle hub motor of permanent-magnet three-phase brushless fractional slot concentrated winding

A technology for electric bicycles and in-wheel motors is applied in the field of electric motors, permanent magnet three-phase brushless fractional slot concentrated winding electric bicycle in-wheel motors, and can solve the problems of poor manufacturability, uneven distribution of Hall elements, and uncompact arrangement of Hall elements. and other problems, to achieve the effect of convenient processing, completely consistent coil arrangement, and saving winding time

Inactive Publication Date: 2009-11-18
CHANGZHOU YUCHENG FUTONG MOTOR CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The distribution of Hall elements is so uneven, no doubt that the arrangement of Hall elements is not compact, and the manufacturability is poor

Method used

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  • Electric bicycle hub motor of permanent-magnet three-phase brushless fractional slot concentrated winding
  • Electric bicycle hub motor of permanent-magnet three-phase brushless fractional slot concentrated winding
  • Electric bicycle hub motor of permanent-magnet three-phase brushless fractional slot concentrated winding

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Embodiment Construction

[0030] The present invention will be further described below through the description of specific embodiments with reference to the accompanying drawings.

[0031] For specific implementation methods, please read the attached Figure 1~3 .

[0032] A permanent magnet three-phase brushless fractional slot concentrated winding electric bicycle hub motor, the inner diameter of the motor casing is about 228mm, and the outer diameter of the stator is about 198mm; it includes a rotor assembly 1, a stator assembly 2, an end cover 3, and a main shaft 4, and three Hall elements 5, and are assembled according to the usual structure. The number of rotor magnets is 40, and they are arranged along the inner circle of the hub; the number of stator slots is 45, and the electrical angle between the two slots is 160°; the number of coils in each phase of the three-phase winding is 15; each phase has 15 coils The same amount is divided into 5 partitions, and the three-phase windings are respec...

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Abstract

The invention discloses an electric bicycle hub motor of a permanent-magnet three-phase brushless fractional slot concentrated winding, which comprises a rotor component (1), a stator component (2), an end cover (3), a main shaft (4) and three Hall elements (5). The number of magnetic steels of a rotor is 40, and the magnetic steels are circumferentially arranged along an inner ring of a hub; the number of stator slots is 45, and an electrical angle between two slots is 160 degrees; the number of each phase of coils of the three-phase winding is 15, the coils are arranged in five subareas with equal number, and the three-phase windings are embedded in the stator slots in turn respectively to form five unit motors; the number of each phase of coils in each subarea is 3, and the number of the three-phase windings positioned in one subarea is 9; and the arrangement number of 15 coils of each phase of the three-phase windings is 3 in the five subareas, and the coils are arranged continuously along the stator slots as the main characteristics. The electric bicycle hub motor has the characteristics of reasonable structure, good processing property, good mechanical property, high motor efficiency, low noise, low production cost and good economic benefit, and the like.

Description

technical field [0001] The invention relates to a permanent magnet three-phase brushless fractional slot concentrated winding electric bicycle hub motor, which belongs to the motor technology. Background technique [0002] The electric bicycle hub motor of the present invention mainly refers to the electric bicycle hub motor whose inner diameter of the motor casing is about 228mm, and the outer diameter of the stator is about 198mm. The above-mentioned motors currently have a relatively large sales volume in the market. [0003] The structural parameters of the existing electric bicycle hub motor are that the number of rotor magnets is 46, the number of stator slots is 51, the electrical angle between the two slots is 162.253°, and 5 unit motors are composed of 5 partitions. Each phase coil The number is 17, and the number of coils per phase in each partition is 3.4. [0004] Since the number of coils in each phase cannot be a non-integer number, in order to make up an int...

Claims

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Application Information

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IPC IPC(8): H02K21/24H02K29/08
Inventor 沈迎邱国平何雪荣
Owner CHANGZHOU YUCHENG FUTONG MOTOR CO LTD
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