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Stator of electric motor with pole-changing arc length and phase-shifting

A technology for starting the motor and the length of the pole arc, which is used in asynchronous induction motors, electric components, electromechanical devices, etc. It can solve the problems of small additional torque and inability to achieve pole-changing speed change, so as to achieve small working current, improve motor efficiency, and improve Effect of terminal voltage

Active Publication Date: 2019-04-30
YANCHENG JIEJING MACHINERY MFG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to overcome the disadvantage that common single-phase asynchronous motors cannot achieve pole-changing and speed-changing if centralized windings are used, and to provide an additional method for the generation of tooth harmonic magnetic fields that is beneficial to the winding process of centralized windings and applied to single-phase asynchronous motors. Stator of pole-changing, arc-length, phase-shifting, single-phase asynchronous motors with small torque, centralized winding and pole-changing, variable-speed, and phase-shifting start

Method used

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  • Stator of electric motor with pole-changing arc length and phase-shifting
  • Stator of electric motor with pole-changing arc length and phase-shifting
  • Stator of electric motor with pole-changing arc length and phase-shifting

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Embodiment Construction

[0046] The present invention is further described below in conjunction with accompanying drawing.

[0047] refer to figure 1 , figure 2 , image 3 , the motor stator includes a stator core part and a stator yoke 8 . The stator core part includes a bobbin one 2 , a first outer coil 3 , a second bobbin 5 , a second outer coil 6 , an inner coil 7 , and a stator core 11 . Coil bobbin 1 2 , outer coil 1 3 , coil bobbin 2 5 , outer coil 2 6 , and inner coil 7 are installed on the stator core 11 , and the stator yoke 8 is installed on the radially outer side of the stator core 11 . The number of outer coil one 3, outer coil two 6, and inner coil 7 of the motor stator is the number of stator poles at low speed. The stator core 11 of the motor stator includes several iron core pole bodies 1 and iron core pole bodies 2 4, each iron core pole body 1 is equipped with a coil skeleton 1 2 and an outer coil 1 3 Wound on the coil frame 1 2, each iron core pole body 2 4 is equipped with ...

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Abstract

The invention relates to a motor stator, in particular, a pole arc length-variable phase-shift starting motor stator. The pole arc length-variable phase-shift starting motor stator comprises a statorcore component and a stator yoke. With the motor stator adopted, the number of coils connected in series of the working winding of a single-phase asynchronous motor during the starting state of the single-phase asynchronous motor can be decreased, namely, the terminal voltage of the working winding of the motor in the starting state can be increased, the power of the motor can be increased, and the starting torque of the motor can be increased; after the motor is started, the power source of a starting winding is cut off, and the wiring mode of the working winding is changed, and therefore, the pole arc length of the magnetic poles of the stator of the working winding during the operation state of the motor is increased, and the number of coils connected in series of the working winding isincreased, that is, the terminal voltage of the working winding during the operation state is lowered, and the working current of the working winding is lowered; and therefore, the motor is small inworking current, high in efficiency and large in output torque during the operation state. The motor stator can realize pole variation and speed variation when applied to the single-phase asynchronousmotor. The motor stator employs a concentrated winding.

Description

technical field [0001] The invention relates to a stator of a pole-arc length-changing phase-shift start motor, which relates to a motor stator, in particular to a motor stator wound with concentrated windings by changing the pole arc length of the stator and the wiring mode of the stator winding to achieve shifting. Phase start and pole shifting. Background technique [0002] The motor stator winding coil is divided into two structural types: distributed winding and concentrated winding. Most asynchronous motors use distributed windings, while brushless DC motors (BLDC) and permanent magnet synchronous motors (PMSM) use centralized windings. The processing technology of distributed winding is complicated, and the processing technology of centralized winding is simple. The interphase insulation strength of centralized winding is higher than that of distributed winding. The winding end length of the concentrated winding is shorter than that of the distributed winding. Sho...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K1/14H02K3/52H02K3/28H02K17/06H02K17/08
CPCH02K1/146H02K3/28H02K3/522H02K17/06H02K17/08
Inventor 赵晓东
Owner YANCHENG JIEJING MACHINERY MFG CO LTD
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