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Title:
ELECTROMAGNETIC BRAKE CONTROL APPARATUS
Document Type and Number:
WIPO Patent Application WO/2021/175059
Kind Code:
A1
Abstract:
Disclosed is an electromagnetic brake control apparatus, comprising: a power supply management module (1), a first switch module (2), a flyback diode (D1), and a first control output end (COIL -) and a second control output end (COIL +) for connecting to an electromagnetic coil, wherein the power supply management module (1) comprises a first output end (Vout), a second output end (VCC) and a power supply input end for connecting to an external power supply; an input end and an output end of the first switch module (2) are connected to the first output end (Vout) and the first control output end (COIL -), and the first switch module (2) is configured with a pulse width modulation function; a cathode and an anode of the flyback diode (D1) are respectively connected to the second output end (VCC) and the first control output end (COIL -); the second output end (VCC) is connected to the second control output end (COIL +); and the pulse width modulation function is performing pulse width modulation on the basis of a preset maintaining voltage/current value, and the maintaining voltage/current value is a voltage/current value for maintaining armature pickup. The electromagnetic brake control apparatus controls the voltage of the electromagnetic coil by means of pulse width modulation, such that the heating of a brake can be reduced, thereby improving the safety thereof.

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WO/2019/042319DISC BRAKE AND VEHICLE
WO/1994/012758WINDOW SHADE DRIVE
Inventors:
XU XIAOWEI (CN)
LU CHA (CN)
Application Number:
PCT/CN2021/074569
Publication Date:
September 10, 2021
Filing Date:
January 31, 2021
Export Citation:
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Assignee:
ALTRA IND MOTION SHENZHEN CO LTD (CN)
International Classes:
F16D65/16; G05F1/567; F16D121/20
Foreign References:
CN2406321Y2000-11-15
CN211951275U2020-11-17
CN111425540A2020-07-17
CN105715709A2016-06-29
CN201318406Y2009-09-30
CN202188050U2012-04-11
CN201433763Y2010-03-31
JP2003292257A2003-10-15
JP2017089679A2017-05-25
US20110094837A12011-04-28
US20070199775A12007-08-30
Other References:
See also references of EP 4053427A4
Attorney, Agent or Firm:
SHENZHEN JISEN INTELLECTUAL PROPERTY AGENCY CO., LTD (CN)
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