12-slot 10-pole permanent-magnetic brushless motor

A permanent magnet brushless motor and slot number technology, which is applied to magnetic circuits, electric components, electrical components, etc., can solve the problems affecting the constant power operation range of the motor, reduce the life of the motor, and damage the magnetic steel, and achieve protection against demagnetization. Ability, Increased Possibilities, Effect of Protecting Magnets

Inactive Publication Date: 2016-12-21
XUZHOU HONGRUNDA ELECTRIC VEHICLE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the permanent magnet motors used in electric tricycles in the market are mostly in the form of 12 slots and 8 poles. The rotor is embedded in the surface. In the gas

Method used

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  • 12-slot 10-pole permanent-magnetic brushless motor
  • 12-slot 10-pole permanent-magnetic brushless motor
  • 12-slot 10-pole permanent-magnetic brushless motor

Examples

Experimental program
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Embodiment Construction

[0014] The present invention will be further explained below in conjunction with the accompanying drawings.

[0015] like figure 1 Shown is the top view of the brushless DC motor stator of the present invention, the number of slots in the stator is 12 slots, the rotor adopts a phase angle of 120 degrees, and the concentrated winding form.

[0016] like figure 2 As shown, the rotor adopts the form of 10 poles. The rotor is equipped with 20 slot wedges, and 20 magnetic steel sheets are installed between the slot wedges. The magnetic steel sheets are V-shaped embedded, and each V-shaped unit is composed of two adjacent magnetic steel sheets. 10 V-shaped units are evenly distributed around the rotor. like image 3 As shown, the magnetic isolation groove 1 is set at the end of the slot wedge, and its function is to limit the magnetic flux leakage at the end of the magnetic steel and stabilize the magnetic field under the working state of the motor. Steel sheet, apply magnetic ...

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PUM

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Abstract

The invention provides a 12-slot 10-pole permanent-magnetic brushless motor. A rotor is provided with 20 slot wedges. 20 magnetic steel sheets are installed among the slot wedges. Each of the magnetic steel sheets is of a V-type embedded structure. Each V-type unit is formed by two adjacent magnetic steel sheets. 10 V-type units are uniformly distributed around the rotor. Polarity of two faces, arranged in the corresponding V-type opening, of the magnetic steel sheets is the same and each V-type opening is towards the surface of the rotor. The polarity of the opening of each V-type unit is different from that of openings of adjacent two V-type units. The thickness of each magnetic steel sheet is 3.0+/- 0.01mm. According to the invention, steel faces can be protected; demagnetizing resisting ability of the brushless motor is improved; stable operation life of the motor is prolonged; high-speed performance of the motor is improved; flux weakening ability of the motor is effectively improved; and constant-power operation range of the motor is extended.

Description

technical field [0001] The invention relates to a permanent magnet brushless motor used in an electric tricycle, in particular to a permanent magnet brushless motor with 12 slots and 10 poles embedded in rotor magnetic steel. Background technique [0002] At present, the permanent magnet motors used in electric tricycles in the market are mostly in the form of 12 slots and 8 poles. The rotor is embedded in the surface. In the gas field, it is easy to demagnetize, which reduces the life of the motor during long-term operation, and is likely to cause damage to the magnetic steel, which limits the high-speed operation capability; this structure has insufficient magnetic field weakening capability, which affects the constant power operation range of the motor. Contents of the invention [0003] Purpose of the invention: In view of the shortcomings of the brushless motor with 12 slots and 8 poles, a permanent magnet brushless motor with 12 slots and 10 poles is proposed. The st...

Claims

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Application Information

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IPC IPC(8): H02K1/16H02K1/27H02K1/24H02K3/28
CPCH02K1/165H02K1/24H02K1/276H02K3/28
Inventor 赵世维
Owner XUZHOU HONGRUNDA ELECTRIC VEHICLE
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