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Electromagnetic brake device

An electromagnetic braking, electromagnetic technology, applied in the direction of brakes, brake components, brake types, etc., can solve the problem of excessive heating of the armature

Active Publication Date: 2021-04-09
TOYOTA JIDOSHA KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, it is difficult for the heat of the armature to conduct to the torque receiving member, and the armature tends to heat up excessively, so the above-mentioned situation is likely to occur.

Method used

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  • Electromagnetic brake device
  • Electromagnetic brake device

Examples

Experimental program
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Embodiment Construction

[0036] Embodiments of the present invention will be described in detail below with reference to the drawings.

[0037] The illustrated electromagnetic brake device 10 is configured as a part of a brake drive device 12 that generates driving force and braking force for a vehicle (not shown), and is integrated with an electromagnetic drive device 14 . In addition, the brake drive device 12 is provided corresponding to each drive wheel of the vehicle, and when the vehicle includes driven wheels, only the electromagnetic brake device 10 is provided on the driven wheels. The brake drive device 12 includes a rotation shaft 20 connected to a wheel 18 which is a member to be braked and driven via a reduction mechanism 16 , and the rotation shaft 20 rotates about an axis 22 in conjunction with the wheel 18 . Therefore, as will be described in detail later, the braking drive device 12 is configured to apply a driving force and a braking force to the wheels 18 via the rotating shaft 20 a...

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PUM

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Abstract

An electromagnetic brake device (10) presses a pressing plate (42) against a brake rotor (40) along an axis (22) via a friction piece (50) by the electromagnetic force of an electromagnetic actuator (44). The electromagnetic brake device (10) includes a support member (56) that is disposed on the opposite side of the pressing plate to the brake rotor and that is supported by a housing (48) so as to be displaceable along the axis and non-rotatable around the axis, and a shaft member (58) that transmits a force in the direction along the axis between the pressing plate and the support member. An electromagnetic coil (74) and an armature (76) of the electromagnetic actuator are spaced apart from the pressing plate between the pressing plate and the support member, the electromagnetic coil is supported by the housing, and the armature is supported by the support member.

Description

technical field [0001] The invention relates to an electromagnetic braking device. Background technique [0002] The electromagnetic braking device presses the friction component against the rotating component by electromagnetic force instead of oil pressure, and generates braking force through the friction force between the rotating component and the friction component. For example, Patent Document 1 below describes a brake drive device suitable for a vehicle such as an electric vehicle, in which an electromagnetic brake device generating a braking force and an electromagnetic drive device generating a driving force are integrally formed. [0003] The existing electromagnetic braking device includes: a brake rotor, which rotates around the axis in conjunction with a rotating part that should be braked, such as a wheel; a friction part; The rotor is pressed. The friction member is supported by the housing so as to be capable of reciprocating movement along the axis but is ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16D65/16F16D66/00F16D121/20
CPCF16D65/16F16D66/00F16D2121/20B60T13/748F16D65/186F16D63/002B60T13/741F16D2066/005F16D2127/02F16D65/567F16D2125/40F16D65/18F16D2129/04B60T1/065B60T13/746F16D2121/24F16D2065/386F16D55/02
Inventor 矶野宏
Owner TOYOTA JIDOSHA KK