Novel suspended type permanent magnetism velocity modulation electric engine structure

A technology of permanent magnet speed regulation and motor structure, applied in the electromechanical field, can solve the problems of belt winding safety hazards, reduced response speed, low transmission efficiency, etc., and achieve the effects of shortening the length of the main shaft, easy implementation, and good compatibility

Inactive Publication Date: 2012-06-27
苏州扬名机电有限公司 +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] 1. Belt friction and heating cause low transmission efficiency. 2. Belt slippage reduces reaction speed. 3. Belt wear brings dander pollution. 4. Belt looseness and tightness need to be adjusted frequently. 5. Belt scrapping and replacement cost more money. 6. Belt winding causes potential safety hazards

Method used

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  • Novel suspended type permanent magnetism velocity modulation electric engine structure
  • Novel suspended type permanent magnetism velocity modulation electric engine structure

Examples

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Effect test

Embodiment

[0023] Example: A new suspension type electric sewing machine cup-shaped permanent magnet motor structure

[0024] refer to figure 1 , its basic structure is similar to that of an ordinary external rotor motor, consisting of a stator (9), a stator core (10), a rotor (5), a rotor core or a yoke (11), a permanent magnet, and a bearing (7). In terms of mechanical structure, the biggest difference from the traditional motor is: the rotor has no shaft, the shaft is borrowed from the sewing machine shaft (3), and there is only one bearing, which is also borrowed from the sewing machine, so the motor is not guaranteed to work well before it is installed on the sewing machine It may need a special tooling for motor debugging and testing.

[0025] The shape of the rotor (5) is special, and there is a sleeve part, which can be inserted into the sewing machine shaft (3), and the torque is transmitted by the key (4); Consider, rotor right inner side is also designed with ventilation hol...

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PUM

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Abstract

The invention provides a novel suspended permanent magnet speed regulating motor structure with direct driving instead of conventional belt driving after studying the scheme of how to achieve optimal driving between a novel speed regulating motor and a work machine, which aims to design a novel suspended permanent magnet speed regulating motor compatible to the prior structure without couplings, convenient installation and debugging, good appearance and practical use. The technical scheme of the invention is characterized in that the motor has a short and thick structure, a stator iron core is directly arranged on a pedestal, only one bearing is arranged between a rotor and the pedestal to limit the degree of freedom in radial movement, the rotor is tightly sheathed on an input shaft of the working machine during operation of the motor, and the limitation in other degrees of freedom of the rotor can be achieved by using the shaft and the bearing of the work machine.

Description

Technical field: [0001] The invention belongs to the electromechanical field, and in particular relates to a new design of a structure scheme of a speed-regulating motor, in particular to a novel suspension type permanent magnet speed-regulating motor structure. Background technique: [0002] Speed-regulating motors have been used more and more in various occasions. The existing asynchronous motor frequency conversion speed-regulating system can meet the general requirements and is the most widely used in the field of speed-regulating motors. However, the system is expensive, the motor is heavy, the volume is large, and the power factor Low starting torque, slow response speed, high power consumption at light load, inconvenient transmission, wide range of speed regulation is not wide enough, and the desire for improvement is very urgent. [0003] With the development of technology, several motor speed control systems have been adopted, one is the brushless DC motor speed con...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K1/18H02K7/08H02K5/04H02K5/16
Inventor 朱正风
Owner 苏州扬名机电有限公司
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