Supercharge Your Innovation With Domain-Expert AI Agents!

Electromagnetic brake with stable electromagnetic force and motor

An electromagnetic brake and electromagnetic force technology, applied in the direction of brake type, brake actuator, axial brake, etc., can solve the problems of motor temperature rise, electromagnetic force reduction, brake abnormality, etc., and achieve stable loop current value, The effect of reducing resistance fluctuation and stabilizing electromagnetic force

Active Publication Date: 2020-04-03
GREE ELECTRIC APPLIANCES INC +1
View PDF13 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] When the motor is working, due to the existence of load and loss, the temperature of the motor rises; and the coil is generally made of copper wire, by R=R 0 (1+αT) It can be seen that the increase of temperature T will increase the resistance R. In the case of a certain external 24V, it can be known from I=U / R that when the resistance R decreases, the coil current will also decrease, and finally the electromagnetic force Reduced risk of malfunctioning brakes

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Electromagnetic brake with stable electromagnetic force and motor
  • Electromagnetic brake with stable electromagnetic force and motor
  • Electromagnetic brake with stable electromagnetic force and motor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] like figure 1 As shown, an electromagnetic brake with stable electromagnetic force in this embodiment includes a brake stator 1, a coil winding 2, a column sleeve 3, a spring 4, an armature 5, a friction plate 6 and a limit plate 7. The coil winding 2 is fixed in the brake stator 1, the column sleeve 3 is fixed on the brake stator 1, the spring 4 is placed on the coil winding 2, and the armature 5 is provided with a through hole, so The armature 5 passes through the column sleeve 3 and is fixed on the brake stator 1, the friction plate 6 is placed on the armature 5, the limiting plate 7 is fixed above the friction plate 6, the The coil winding 2 includes a group of electromagnetic force generation modules K, the electromagnetic force generation modules include at least two groups of enameled coils, and at least one group of the enameled coils in the electromagnetic force generation modules is an enameled coil of negative temperature coefficient material.

[0030] The b...

Embodiment 2

[0048] like image 3 As shown, the difference between this embodiment and Embodiment 1 is that the electromagnetic force generating module K of this embodiment includes a first enameled coil R1, a second enameled coil R2 and a third enameled coil R3, and the second enameled wire The coil R2 and the third enameled coil R3 are connected in series, and the first enameled coil R1 and the second enameled coil R2 are connected in parallel. The first enameled coil R1 is an enameled coil of NTC material, and the second enameled coil R2 and the third enameled coil R3 are enameled coils of PTC material.

[0049] In this embodiment, a control element T1 and T2 are respectively connected in series on the first enameled coil R1 and the second enameled coil R2, and the control element may be one of a temperature sensing controller, a voltage sensing controller, and a current sensing controller. Temperature triggering can be realized by a temperature sensing controller, voltage triggering c...

Embodiment 3

[0070] like Figure 4 or Figure 5 As shown, an electromagnetic brake with stable electromagnetic force in this embodiment includes n electromagnetic force generating units K, and each electromagnetic force generating unit K is connected in series or in parallel, and each electromagnetic force generating unit K is affected by The control of the switching element T will be described below by taking three electromagnetic force generating units K as an example.

[0071] The control elements in the three electromagnetic force generating units K are temperature sensing controllers, voltage sensing controllers and current sensing controllers. When the three electromagnetic force generating units K are connected in series, only the temperature, current and voltage can reach three The brake can only work when the control element is required; when the three electromagnetic force generating units K are connected in parallel, and any one of the conditions of temperature, current and vol...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses an electromagnetic brake with stable electromagnetic force and a motor. The electromagnetic brake comprises a brake stator and a coil winding which is fixed in the brake stator, wherein the coil winding comprises at least one group of electromagnetic force generating modules; each group of the electromagnetic force generating modules comprises at least two groups of enameled coils; and at least one group of the enameled coils in the electromagnetic force generating modules are negative-temperature coefficient material enameled coils. The coil winding is formed by connecting the enameled coils of different materials; while the temperature of the enameled coils of different materials changes, the resistance value of one kind of enameled coils is increased while the resistance value of the other kind of enameled coils is reduced, so that resistance value hedging is realized, and resistance value fluctuation is reduced; and fluctuation of the resistance value is reduced, so that a loop current value is more stable, electromagnetic force is more stable, and reliability of the brake is improved; and the electromagnetic brake is low in resistance fluctuation, is stable in electromagnetic force, can be used at a high temperature, and is high in reliability.

Description

technical field [0001] The invention relates to the technical field of motors, in particular to an electromagnetic brake and a motor with stable electromagnetic force. Background technique [0002] The brake is one of the commonly used parts of the servo motor. It is mainly used to lock the rotor shaft of the servo motor after power failure to prevent sudden power failure. The vertical load will drive the motor to rotate and slide due to gravity, resulting in danger. [0003] The brake generally uses the electromagnetic coil and the spring to work together, and controls the friction coefficient between the friction plate, the armature and the plate by controlling the gap state of the friction plate in the brake; when the motor is running normally, the brake does not work, and the friction plate is in the brake. The brake is in a free state in the axial direction, and the friction coefficient is approximately 0 at this time; when the motor is powered off or the position is ma...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): F16D55/02F16D65/18H02K3/04F16D121/20
CPCF16D55/02F16D65/18F16D2055/0079F16D2121/20H02K3/04
Inventor 王瑞东李峰岩吉扬宏黄积光王周叶黄侠昌
Owner GREE ELECTRIC APPLIANCES INC
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com