ELECTROMAGNETIC BRAKING DEVICE

WIPO Patent Application WO/2022/034859

A1

An electromagnetic braking device 1 according to the present invention comprises a brake disc 400, a fixed disc 500, an armature 300, a biasing member 200 that biases the armature, and a stator 100 that attracts the armature. A stator magnetic path member 105 has a U shape including a first yoke 110, a permanent magnet 130, and a second yoke 120 arranged in the stated order from one end to the other end of the U shape. In a rotatable state and a rotationally braked state, coil energization is turned off to maintain the rotatable state and the rotationally braked state, respectively. The present invention is configured to: shift to the rotationally braked state when a current of a predetermined magnitude in a first direction is caused to flow to a coil 150 in the rotatable state; and shift to the rotatable state when a current of a predetermined magnitude is caused to flow to the coil 150 in a second direction in the rotationally braked state.　According to the present invention, the electromagnetic braking device 1 saves power while stably exerting a strong braking force.

JPH06261570

INVERTER DEVICE

HASEBE YOICHI (JP)
NAKAMURA TADASHI (JP)
DOI OSAMU (JP)

PCT/JP2021/029262

February 17, 2022

August 06, 2021

Click for automatic bibliography generation  

TOKYO MOTRONICS CO LTD (JP)

H02K7/102; F16D55/28; F16D65/16; H01F7/122; H01F7/16; F16D121/20

WO2019199354A1

2019-10-17

JP2018507363A	2018-03-15
US5185542A	1993-02-09
JP2007051694A	2007-03-01
US20150292911A1	2015-10-15

MEBUKI IP LAW FIRM et al. (JP)

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