Synchronous motor assembly, pump and blower fan

A technology for synchronous motors and motor components, applied in electrical components, motor control, single-phase motor control, etc., can solve the problems of inability to adjust speed and motor inapplicability, and achieve the effect of improving reliability, stable speed, and reducing circuit costs.

Inactive Publication Date: 2018-05-01
JOHNSON ELECTRIC SHENZHEN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] During the start-up process of the synchronous motor, the electromagnet of the stator generates an alternating magnetic field, which is equivalent to a synthetic magnetic field with a forward rotation and a reverse magnetic field. This magnetic field drags the permanent magnet rotor to yaw and oscillate. , and eventually the rotor can be rapidly accelerated to rotate in a certain direction to synchronize with the alternating magnetic field of the stator. The application of traditional synchronous motors is limited to synchronous speed operation, and the speed cannot be adjusted, which makes the motor unsuitable for some applications that require speed adjustment.

Method used

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  • Synchronous motor assembly, pump and blower fan
  • Synchronous motor assembly, pump and blower fan
  • Synchronous motor assembly, pump and blower fan

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Embodiment Construction

[0030] The technical solutions and other beneficial effects of the present invention will be apparent through the detailed description of specific embodiments of the present invention below in conjunction with the accompanying drawings. It can be understood that the drawings are provided for reference and illustration only, and are not intended to limit the present invention. The dimensions shown in the drawings are only for the convenience of clear description, and do not limit the proportional relationship.

[0031] see Figure 1 to Figure 4 , the synchronous motor is preferably a single-phase permanent magnet synchronous motor, and the synchronous motor 10 includes a stator 20 and a rotor 40 that can rotate relative to the stator. The stator 20 includes a cylindrical casing 21 with one end open, a stator core 30 installed in the casing 21 , and a winding 39 wound on the stator core 30 . Wherein, the stator core 30 includes a plurality of tooth bodies 33 and pole pieces 35...

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Abstract

Provided is a synchronous motor assembly, comprising a motor , a motor driving circuit, and an adjusting unit which are in serial connection with two ends of an AC power supply. The motor driving circuit is used for driving the motor to run. Before the motor is started or during the starting and running process of the motor, the adjusting unit adjusts the motor to different stable voltage points so as to adjust the rotating speed of the motor. The invention is advantageous in that the synchronous motor assembly is simple in structure, stable in speed, and low in cost, and can drive the load toachieve wide-scope speed regulation; in the application of the blower fan and water pump, the rotating speed of fan blades or impellers can be adjusted through gearshift, so that user demand can be met.

Description

technical field [0001] The invention relates to the field of motor control, in particular to a synchronous motor assembly suitable for adjustable motor speed and a pump and fan using the synchronous motor. Background technique [0002] During the start-up process of the synchronous motor, the electromagnet of the stator generates an alternating magnetic field, which is equivalent to a synthetic magnetic field with a forward rotation and a reverse magnetic field. This magnetic field drags the permanent magnet rotor to yaw and oscillate. , and eventually the rotor can be rapidly accelerated to rotate in a certain direction to synchronize with the alternating magnetic field of the stator. The application of traditional synchronous motors is limited to synchronous speed operation, and the speed cannot be adjusted, which makes the motor unsuitable for some applications that require speed adjustment. Contents of the invention [0003] In view of this, an embodiment of the presen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02P25/022H02P25/04H02P25/24H02P27/02
CPCH02P25/04H02P25/24H02P27/02F04D13/06F04D15/0066F04D27/004H02P1/027H02P6/16H02P6/26F04D25/06F04D25/08H02P2207/05Y02B30/70H02P6/06H02P6/18
Inventor 李越周垂有易红亮张勇刚王勇
Owner JOHNSON ELECTRIC SHENZHEN
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