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An external rotor motor

An external rotor motor and external rotor technology, applied in the direction of electromechanical devices, electrical components, electric components, etc., can solve the problems of poor insulation performance, poor waterproof and impurity resistance, motor wear, etc., to achieve light weight, prevent impurity wear, hair loss, etc. low calorie effect

Active Publication Date: 2020-02-07
POWERVISION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The outer rotor assembly of the outer rotor motor has multiple heat dissipation holes, and water and impurities are easy to enter. This outer rotor structure has many defects, such as poor waterproof and miscellaneous resistance, poor insulation performance, easy to rust and not dustproof, which is easy to cause Motor bearing wear or even motor stuck problem

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] see figure 1 and image 3 As shown, the outer rotor motor of the present invention includes a base 3, a stator assembly 2 fixed on the base 3 and an outer rotor assembly 1 rotatably buckled on the stator assembly 2, the lower edge of the outer rotor assembly 1 is connected to the base 3 Close to the arrangement, the stator assembly 2 includes an iron core and a coil winding 4 wound on the stator iron core 5, the surface of the stator iron core 5 and the coil winding 4 is covered with a sealing insulating layer, and the base 3 and the outer rotor assembly 1 is provided with a first dustproof pad 6 covering both the surface of the base 3 and the outer rotor assembly 1 . Because the surface of the stator iron core 5 and the coil winding 4 of the motor is covered with a sealed insulating layer, the complete insulation of the motor is suitable for use in water. Secondly, the structure gap of the outer rotor motor of the present invention is equipped with a first dust-proof ...

Embodiment 2

[0039] see figure 2 An implementation structure of the outer rotor motor of the present invention is shown, wherein the outer rotor motor includes an outer rotor assembly 1, the outer rotor assembly 1 is sleeved outside the stator assembly 2, and the outer rotor assembly 1 and the rotating shaft are connected together, The stator assembly 2 includes a stator core 5 and a coil winding 4, wherein the stator core 5 and the coil winding 4 are externally injected with an insulating shell or coated with a sealed insulating layer, and the stator is realized by injecting an insulating shell or coating a sealed insulating layer. The iron core 5 and the coil winding 4 are isolated from the outside world, so that the outer rotor motor of the present invention has good insulation, waterproof and corrosion resistance. Further, this embodiment also includes a base 3, and the stator assembly 2 is fixed on the base 3. The rotating shaft is supported and fixed on the base 3 through the bearin...

Embodiment 3

[0041] see image 3 Another implementation structure of the outer rotor motor shown in the present invention, the third embodiment has the same outer rotor assembly 1 and the stator assembly 2 as the second embodiment, the difference is that the structure of the base 3 and the mounting base 7 are different, in the third embodiment , the base 3 is a cylindrical structure or the bottom of the base 3 is a cylindrical structure, and the outer diameter of the cylindrical structure is not smaller than the outer diameter of the outer rotor assembly 1, and the lower edge of the outer rotor assembly 1 is arranged close to the circumference of the base 3 Correspondingly, the outer edge of the mounting seat 7 is provided with an annular side wall extending vertically upwards, and the annular side wall is higher than the lower edge of the outer rotor assembly 1. The height of the base 3 in this embodiment is higher than that of the first embodiment. If the setting is low, correspondingly,...

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PUM

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Abstract

An external rotor electric machine, comprising a base (3), a stator assembly (2) fixed on the base (3), and an external rotor assembly (1) rotatably clipped on the stator assembly (2). The lower edge of the external rotor assembly (1) is disposed close to the base (3). The stator assembly (2) comprises an iron core (5) and a coil winding (4) wound on the iron core (5). A sealing insulating layer covers the surface of the iron core (5) and the coil winding (4). A first dust-proof mat (6) covering both the base (3) and the surface of the external rotor assembly (1) is disposed in a gap between the base (3) and the external rotor assembly (1). The external rotor electric machine is applicable to underwater and other severe environments, has a good insulating effect, is not easy to rust, and can filter out impurities in water, so that the service life of the external rotor electric machine is greatly prolonged.

Description

technical field [0001] The invention relates to a motor, especially an outer rotor motor. Background technique [0002] At present, the stator structure in an external rotor motor includes an end cover, a stator core, a coil winding and an insulator. The coil winding is wound on the stator core, and an insulator is installed on the coil winding exposed at both ends of the stator core. Then cooperate with the end cover to press fit, and process a bearing chamber and screw holes on the end cover. The bearing chamber is used to support the rotation of the motor, and the screw holes are used to install and fix the stator components. The outer rotor assembly of the outer rotor motor has multiple heat dissipation holes, and water and impurities are easy to enter. This outer rotor structure has many defects, such as poor waterproof and miscellaneous resistance, poor insulation performance, easy to rust and not dustproof, which is easy to cause The problem of motor bearing wear or ...

Claims

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Application Information

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IPC IPC(8): H02K1/12H02K3/32H02K5/132
CPCH02K1/12H02K3/32H02K5/132
Inventor 郑卫锋其他发明人请求不公开姓名
Owner POWERVISION TECH