Motor speed detection and feedback device and motor with motor speed detection and feedback device

A feedback device and rotor shaft technology, applied in the direction of magnetic circuit shape/style/structure, magnetic circuit rotating parts, etc., can solve the problems of low production efficiency, high production cost, increased materials and the use of assembly tools, etc., to improve production Efficiency, high structural reliability, and the effect of reducing production costs

Active Publication Date: 2014-09-03
FOSHAN WEILING WASHER MOTOR MFG
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the magnet assembly in the speed measurement feedback device of the mainstream home appliance motor in the market, the magnet assembly is locked on the rotor shaft by screws, which restricts the axial movement and rotation of the magnet assembly, and realizes the synchronous rotation of the magnet assembly and the rotor shaft; such The design requires the use of screws, which increases the use of materials and assembly tools, and requires machining threaded holes on the rotor shaft, which increases the difficulty of processing the rotor shaft, high production costs, and low production efficiency

Method used

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  • Motor speed detection and feedback device and motor with motor speed detection and feedback device

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Embodiment Construction

[0026] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0027] It should be noted that when an element is referred to as being “fixed on” or “disposed on” another element, it may be directly on the other element or there may be an intervening element at the same time. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present.

[0028] It should also be noted that the orientation terms such as left, right, up, and down in this embodiment are only relative concepts or refer to the normal use state of the product, and should not be regarded as limiti...

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Abstract

The invention is suitable for the technical field of motors and discloses a motor speed detection and feedback device and a motor with the motor speed detection and feedback device. The motor speed detection and feedback device comprises a rotor shaft and a magnet assembly. The magnet assembly comprises a bracket and a magnet. The bracket sleeves the rotor shaft. An axial spacing structure and a radial spacing structure are arranged between the bracket and the rotor shaft. The axial spacing structure contains a clamping part arranged on the bracket and an annular groove disposed in the rotor shaft. The radial spacing structure contains a raised part disposed on the bracket and a vertical groove arranged in the rotor shaft. The motor has the above motor speed detection and feedback device. According to the motor speed detection and feedback device and the motor with the motor speed detection and feedback device provided by the invention, relative circumferential rotation between the magnet assembly and the rotor shaft can be effectively prevented by the arrangement of the axial spacing structure and the radial spacing structure.

Description

technical field [0001] The invention belongs to the technical field of motors, and in particular relates to a motor speed measurement feedback device and a motor provided with the motor speed measurement feedback device. Background technique [0002] At present, the magnet assembly in the speed measurement feedback device of the mainstream home appliance motor in the market, the magnet assembly is locked on the rotor shaft by screws, which restricts the axial movement and rotation of the magnet assembly, and realizes the synchronous rotation of the magnet assembly and the rotor shaft; such The design requires the use of screws, which increases the use of materials and assembly tools, and requires machining threaded holes on the rotor shaft, increasing the difficulty of processing the rotor shaft, resulting in high production costs and low production efficiency. Contents of the invention [0003] The purpose of the present invention is to overcome the shortcomings of the ab...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K1/28
Inventor 宋财福王喜
Owner FOSHAN WEILING WASHER MOTOR MFG
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