Brake device for tubular motor and tubular motor

A brake device, tubular motor technology, applied in electromechanical devices, electrical components, electric components, etc., can solve problems such as poor braking effect

Pending Publication Date: 2021-04-27
ZHEJIANG JIECHANG LINEAR MOTION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the tubular motor includes a motor shaft and a motor casing. The braking structure of the tubular motor includes a magnet for fixing to the motor shaft and a magnetizer for fixing to the motor casing. The magnet and the magnetizer are magnetically connected. structure, the braking torque can be generated by the magnetic force between the magnet and the magnetic conductor to achieve braking, but the braking torque generated by the magnetic force between the magnet and the magnetic conductor is small, and the braking effect is poor

Method used

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  • Brake device for tubular motor and tubular motor
  • Brake device for tubular motor and tubular motor
  • Brake device for tubular motor and tubular motor

Examples

Experimental program
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Effect test

Embodiment 1

[0031] Such as Figure 1 to Figure 6 As shown, the preferred structure of the brake device for tubular motors in this embodiment includes a housing 1, a magnetically permeable rotor 3 for fixed connection with the motor shaft 2, a magnet 4 and an outer part for being located in the magnetic circuit of the magnet 4 The magnetizer 5, the magnetizer rotor 3 is a magnetizer 4, the magnet 4 is located outside the magnetizer rotor 3, and the magnet is along the radial direction of the magnetizer rotor 3 and between the magnetizer rotor 3 There is a gap between them, the external magnetizer 5 and the magnetizer rotor 3 are magnetically connected to the magnet 4 , and the magnet 4 is fixed relative to the housing 1 .

[0032] After adopting the above-mentioned structure, firstly, the brake device includes a casing 1, a magnetically conductive rotor 3 for fixed connection with the motor shaft 2, a magnet 4, and an external magnetically conductive body 5 for being located in the magneti...

Embodiment 2

[0044] The difference between this embodiment and Embodiment 1 is that in this embodiment, the external magnetizer 5 is in direct contact with the magnetic ring, and the closer the distance between the outer magnetizer 5 and the magnet 4, the greater the intensity of the magnetic field. With this structure, the contact between the external magnetic conductor 5 and the magnet 4 can maximize the strength of the magnetic field of the magnet 4, so that the torsional moment during braking is larger. This embodiment can also achieve the technical effect of the first embodiment.

Embodiment 3

[0046] The difference between this embodiment and Embodiment 1 is that in this embodiment, the magnet 4 is a bar magnet and includes at least two bar magnets, and the at least two bar magnets are evenly distributed along the circumferential direction of the motor shaft. distribution, this embodiment can also achieve the technical effect of the first embodiment.

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Abstract

The invention provides a brake device for a tubular motor, and belongs to the field of tubular motors. The brake device comprises a shell, a magnetic conductive rotor used for being fixedly connected with a motor shaft, a magnet and an external magnetizer used for being located in a magnetic circuit of the magnet; the magnetic conductive rotor is a magnetizer, the magnet is located outside the magnetic conductive rotor, and a gap exists between the magnet and the magnetic conductive rotor in the radial direction of the magnetic conductive rotor; the external magnetizer and the magnetic conductive rotor are both in magnetic connection with the magnet, the magnet is fixed relative to the shell, in addition, the invention further discloses a tubular motor adopting the brake device, and the tubular motor has the advantages that by adopting the structure, the brake torque can be enhanced, the brake effect can be improved, and the service life of the tubular motor can be prolonged. The brake device is used for braking the tubular motor.

Description

【Technical field】 [0001] The invention relates to a braking device for a tubular motor and the tubular motor, belonging to the field of tubular motors. 【Background technique】 [0002] As a driving device, the tubular motor is widely used in the fields of rolling shutter doors and windows, projection screens, etc. In order to ensure that the rolling shutter door stops running at the moment of power cut off and immediately stays in this position, so as to prevent the pulled up rolling shutter door from sliding due to its own weight To eliminate the inaccurate positioning caused by the inertial effect of the rotor after high-speed rotation, it is necessary to install a brake device in the tubular motor to improve the self-locking ability of the rolling shutter door and the safety of use. [0003] At present, the tubular motor includes a motor shaft and a motor casing. The braking structure of the tubular motor includes a magnet for fixing to the motor shaft and a magnetizer for...

Claims

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Application Information

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IPC IPC(8): H02K7/102H02K11/01
CPCH02K7/1025H02K2207/03H02K11/01
Inventor 刘文涛
Owner ZHEJIANG JIECHANG LINEAR MOTION TECH
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