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Motor device

A magnet and spindle technology, applied in the direction of electromechanical devices, electrical components, electric components, etc., can solve the problems of small starting torque, affecting driving performance, power sag, etc., to achieve good torque balance, high magnetic density range widening Effect

Pending Publication Date: 2018-04-27
东莞市沃伦电子科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, small high-frequency vibration motors generally use cogging torque to achieve non-contact operation. Its resonance mechanism is advanced, its life is long, and its product performance is relatively good. However, due to its design limitations, as the load increases, it will appear Phenomena such as sudden power drop or small starting torque will seriously affect its driving performance

Method used

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Experimental program
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Effect test

Embodiment 1

[0030] see figure 1 as well as figure 2 , a motor device 100 provided in Embodiment 1 of the present invention. The motor device 100 includes a housing 10, a bracket 20 disposed in the housing 10, a main shaft 30, an iron core 40 disposed on the main shaft 30 and driving the main shaft 30 to rotate, surrounding the iron core 40 The set coil 50 and the magnet 60 fixed on the bracket 20, wherein:

[0031] In this embodiment, the housing 10 includes a cylinder body 11 and a front end cover 12 and a rear end cover 13 for covering both ends of the cylinder body 11. The front end cover 12 includes the same The shaft hole is arranged on the shaft, and the positioning hole coaxially arranged with the cylinder body 11 is arranged on the rear end cover 13 .

[0032] The bracket 20 is fixed on the inner wall of the barrel 11 for fixing the coil 50 and the magnet 60 . In this embodiment, the bracket 20 is provided with a hollow cavity inside, and the inner wall of the bracket 20 is p...

Embodiment 2

[0046] Please also refer to Figure 8 Another motor device 200 provided in Embodiment 2 of the present invention is basically the same in structure as the motor device 100 provided in Embodiment 1 above, including a housing, a bracket, a main shaft, an iron core, a coil, and a magnet. The difference lies in: Only one of the two first centerlines L3 of the first magnetic pair 61 coincides with the corresponding two second centerlines L4 of the second magnetic pair 62 , and the first distance D4 is smaller than the second distance D5 . Meanwhile, both the first distance D4 and the second distance D5 are smaller than the width D3 of the tongue 42 .

[0047] It can be understood that the arrangement positions of the first magnetic pair 61 and the second magnetic pair 62 are not limited to those shown in the figure, and can also be other, such as the second distance between the second magnetic pair 62 in the figure D5 is greater than the first distance D4 between the first magneti...

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Abstract

The invention provides a motor device which comprises a main shaft, an iron core, a coil and a magnet bodies. The iron core is arranged on the main shaft and drives the main shaft to rotate. The coilis arranged around the iron core. The magnet bodies surround the iron core and the coil in the extending direction of the main shaft and are arranged in segments. The magnet bodies comprise a first magnet body area and a second magnet body area. The first magnet body area comprises a number of spaced first magnetic pairs. The second magnet body area comprises a number of second magnetic pairs corresponding to the first magnetic pairs. Each first magnetic pair comprises two first magnet bodies which are arranged at a first interval. Each second magnetic pair comprises two second magnet bodies which are arranged at a second interval. The first interval and the second interval are not equal. The motor device provided by the invention has the advantages of simple structure, good balance of torque output, high utilization of magnetic flux density and the like.

Description

【Technical field】 [0001] The invention belongs to the technical field of personal care products, and in particular relates to a motor device used in care products. 【Background technique】 [0002] In the technical field of personal care products, such as electric toothbrushes, facial cleansers, massagers, etc., small high-frequency vibration motors are generally used as driving devices. At present, small high-frequency vibration motors generally use cogging torque to achieve non-contact operation. Its resonance mechanism is advanced, its life is long, and its product performance is relatively good. However, due to its design limitations, as the load increases, it will appear Phenomena such as sudden power drop or small starting torque will seriously affect its driving performance. 【Content of invention】 [0003] The purpose of the present invention is to provide a motor device with balanced torque output under heavy load. [0004] To achieve this goal, the present inventi...

Claims

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Application Information

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IPC IPC(8): H02K33/12H02K1/34
CPCH02K1/34H02K33/12H02K2213/03H02K2201/06
Inventor 林海群赵华志其他发明人请求不公开姓名
Owner 东莞市沃伦电子科技有限公司