Two-phase brushless direct current motor and sine stator

A brushed DC motor and stator technology, which is applied in the direction of electrical components, electromechanical devices, magnetic circuit static parts, etc., to achieve the effect of reducing the intensity of manual operation and simplifying the embedding of wires

Inactive Publication Date: 2014-10-01
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Changed the current permanent magnet synchronous motor stator one pole needs more cogging to achieve the sinusoidal waveform of the magnetic potential

Method used

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  • Two-phase brushless direct current motor and sine stator
  • Two-phase brushless direct current motor and sine stator
  • Two-phase brushless direct current motor and sine stator

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Embodiment Construction

[0044] The specific implementation manners of the present invention will be described in further detail below in conjunction with the accompanying drawings.

[0045] Please refer to figure 1 , Figure 1B , figure 2 , a two-phase brushless DC motor and a sinusoidal stator, including a stator 9, a rotor permanent magnetic pole 10 and the like. Among them, a Hall position sensor is installed on one side of the inner circle of the iron core of the stator 9 and the permanent magnetic pole of the rotor 10 to form a signal sampling part in the two-phase electronic commutation circuit device.

[0046] Please refer to Figure 1A , the described four-pole model of a two-phase brushless DC motor and a sinusoidal stator has sixteen teeth and sixteen slots, and the material is a high-permeability silicon steel sheet or a silicon steel sheet.

[0047] The sixteen slots are divided into eight A-phase slots 6 and eight B-phase slots 7 with equal slot areas, and A-phase windings 1 and B-p...

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Abstract

The invention discloses a two-phase brushless direct current motor and a sine stator. A plurality of teeth 5 and a plurality of teeth 4 are distributed at intervals in a circumferential mode, and the width of tooth bodies of the teeth 5 is two times or more than two times that of tooth bodies of the teeth 4. Iron core poles are formed by arranging the teeth 5, as the main part, and the left teeth 4 and the right teeth 4, as the auxiliary part, and the pole cambered surfaces of the three types of teeth are distributed in a sinusoidal mode. According to the characteristic that the teeth 4 are shared by phases and phase poles, the function of integration and connection of the phases and a phase pole magnetic field is achieved, the effect similar to the effect of a circular rotating field is generated, and therefore the pulsation phenomenon of the motor is further lowered, the motor can be started stably, the manufacturing cost is lowered, the noise is lowered, the energy consumption is lowered, the efficiency is improved, and the torque is increased.

Description

technical field [0001] The technology relates to the field of motors, in particular to an electronically commutated two-phase brushless DC motor. Background technique [0002] The existing two-phase brushless DC motor is a branch of the permanent magnet synchronous motor. The motor stator iron core circle is provided with convex teeth, and a single convex tooth is wound into a pole, and the salient poles are evenly distributed on the circle. The magnetic poles of one phase are radially paired. Generally, the rotor has 4 salient poles, the stator has 2 double salient poles, and the two-phase brushless DC motor has permanent magnetic poles on the rotor. In order to improve the starting effect, some also use eccentric rotors. When energized, each phase coil on the stator is energized one by one through the position sensor and the electronic commutator, and a two-phase symmetrical rotating magnetic field is generated on the stator core, which drives the rotor to rotate respect...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K29/06H02K1/27H02K1/14H02K1/16
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