An Outer Rotor Brushless Motor

A technology of brushless motors and external rotors, applied in the direction of electromechanical devices, electrical components, electric components, etc., can solve the problems of magnet falling off, magnet and fixed sleeve separation, unable to meet the requirements of reliable connection, etc., to improve reliability and not easily The effect of deflection and guarantee of concentricity

Active Publication Date: 2020-05-29
GOERTEK ROBTICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In motors with high torque output, the strength of the existing structural glue cannot meet the requirements of reliable connection
During the working process of the motor, the magnet is easy to fall off from the fixing sleeve, causing the magnet to separate from the fixing sleeve
In particular, the selection and proportion of structural adhesives are secrets in the industry, and the production method of structural adhesives that meets the requirements cannot be obtained.

Method used

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  • An Outer Rotor Brushless Motor
  • An Outer Rotor Brushless Motor
  • An Outer Rotor Brushless Motor

Examples

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Embodiment Construction

[0026] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that the relative arrangements of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.

[0027] The following description of at least one exemplary embodiment is merely illustrative in nature and in no way taken as limiting the invention, its application or uses.

[0028] Techniques, methods and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such techniques, methods and devices should be considered part of the description.

[0029] In all examples shown and discussed herein, any specific values ​​should be construed as exemplary only, and not as limitations. Therefore, other instances of the exemplary embodiment may have dif...

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PUM

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Abstract

The invention discloses an outer-rotor brushless motor which includes a stator and a rotor. The stator includes a core, bearings, and a fixing shaft fixedly connecting the core and the bearings. The rotor is rotationally connected with the stator through the bearings, and includes end covers and magnets. Each end cover includes a top part and a side part connected with the top part. The end covers consist of a first end cover and a second end cover. The two top parts of the first end cover and the second end cover respectively sleeve the two axial ends of the fixing shaft. The two side parts of the first end cover and the second end cover extend to each other from the two axial ends to form clamp slots for fixing the magnets so that the magnets are directly fixed to the end covers. The first end cover, the second end cover and the magnets form an accommodating cavity for accommodating the core. The magnets and the core are oppositely arranged inside and outside in the radial direction perpendicular to the axial direction. One of the technical problems to be solved in the invention is that the magnets of the existing motor with large torque output are easy to fall off.

Description

technical field [0001] The present invention relates to the technical field of motors, and more specifically, the present invention relates to an outer rotor brushless motor. Background technique [0002] In large model aircraft, the motor is required to have a large output torque. At present, in the external-rotor brushless motors for aircraft models, the rotor generally includes a stator, a rotating shaft and a rotor. A stator typically consists of end caps, magnets and a retaining sleeve. The fixed sleeve is fixedly connected to the end cover, and the magnet and the protective sleeve are mainly fixedly connected together by structural glue. [0003] In motors with high torque output, the strength of existing structural adhesives cannot meet the requirements for reliable connection. During the working process of the motor, the magnet is easy to fall off from the fixing sleeve, causing the magnet to be separated from the fixing sleeve. In particular, the selection of ty...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K29/00H02K5/04H02K1/27
CPCH02K1/2786H02K5/04H02K29/00
Inventor 伍旺贤其他发明人请求不公开姓名
Owner GOERTEK ROBTICS CO LTD
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