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Motor, power device, and unmanned aerial vehicle using the power device

A technology of unmanned aerial vehicle and power device, applied in the field of unmanned aerial vehicle, can solve the problems of high vibration and noise, unstable operation of brushless motor, etc.

Inactive Publication Date: 2018-08-14
SZ DJI OSMO TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the inherent radial clearance of the bearing, when the stator and the rotor rotate relative to each other, there will be a small amount of radial movement, resulting in relatively unstable operation of the brushless motor and large vibration noise

Method used

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  • Motor, power device, and unmanned aerial vehicle using the power device
  • Motor, power device, and unmanned aerial vehicle using the power device
  • Motor, power device, and unmanned aerial vehicle using the power device

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Embodiment Construction

[0057] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0058] It should be noted that when a component is said to be "fixed to" another component, it can be directly on the other component or a central component may also exist. When a component is considered to be "connected" to another component, it can be directly connected to another component or there may be a centered component at the same time. When a component is considered to be "installed on" another component, it can be directly in...

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Abstract

The invention relates to a motor, a power device using the motor, and an unmanned aerial vehicle. The unmanned aerial vehicle comprises an aircraft body, a motor arranged on the aircraft body, and anairscrew arranged on the motor; the motor comprises a base, a rotor, a rotating shaft and a bearing; the rotor is rotatably covered on the external of the base, one end of the rotating shaft is fixedly arranged on the rotor, and the other end is rotatably connected with the base through the bearing; the airscrew is connected with the rotating shaft; the bearing comprises an inner ring, an outer ring and a roller; the inner ring is fixedly sleeved on the rotating shaft, the outer ring is fixedly arranged on the base and surrounds the external of the inner ring, and the roller can be movably arranged between the inner ring and outer ring; and the outer ring and the base are connected through interference fit. The operation noise of each of the above unmanned aerial vehicle and the motor thereof is relatively small.

Description

Technical field [0001] The invention relates to a motor, a power device using the motor, and an unmanned aerial vehicle using the power device. Background technique [0002] Brushless motors are widely used in the field of mechatronics applications because of their advantages of low loss, low noise, smooth operation and long life. Generally, a brushless motor includes a base, a stator provided on the base, and a rotor rotatably provided on the stator. A bearing is usually arranged between the stator and the rotor to reduce friction between the stator and the rotor during relative rotation. Due to the inherent radial clearance of the bearing, when the stator and the rotor rotate relative to each other, they will be accompanied by a slight radial movement, resulting in relatively unstable operation of the brushless motor and high vibration noise. Summary of the invention [0003] In view of the above situation, it is necessary to provide a motor with relatively low operating noise...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K5/173
CPCB64C27/14H02K5/1732B64U50/19B64U2101/30B64U10/10F16C43/08H02K1/22H02K5/16
Inventor 耶方明
Owner SZ DJI OSMO TECH CO LTD
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