Motor with electromagnetic brake

A technology of electromagnetic brake and electric motor, applied in the field of electric motor

Active Publication Date: 2017-07-18
TOYOTA JIDOSHA KK +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, a motor with a non-excitation electromagnetic brake is not suitable for use as a driving force source for a vehicle.

Method used

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  • Motor with electromagnetic brake
  • Motor with electromagnetic brake
  • Motor with electromagnetic brake

Examples

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Embodiment Construction

[0023] The present invention will be specifically described with reference to the drawings. figure 1 An example of a motor with an electromagnetic brake to which the present invention is applied is shown in . figure 1 The shown electric motor 1 with an electromagnetic brake includes a drive motor 2 , an electromagnetic brake 3 , a case 4 housing the drive motor 2 and electromagnetic brake 3 , a thrust generating mechanism 5 , and a brake motor 6 as main components.

[0024] The driving motor 2 is supposed to be used mainly as a driving force source of the vehicle, and is constituted by, for example, a permanent magnet synchronous motor (PM) or an induction motor (IM). The driving motor 2 includes a stator 7 , a rotor 8 , and a motor shaft 9 . The stator 7 is fixed to the casing 4 . The rotor 8 is relatively rotatable with respect to the stator 7 , and is fixed to the motor shaft 9 so as to rotate integrally with the motor shaft 9 . The motor shaft 9 is a rotating shaft (out...

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PUM

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Abstract

A motor having an electromagnetic brake is provided to ensure a braking torque even when power is off. The motor with electromagnetic brake (1) comprises a drive motor (2) and an electromagnetic brake (3). The electromagnetic brake (3) is provided with a brake rotor (12), a brake stator (13) and a brake solenoid (14). The brake rotor (12) and a motor shaft (9) rotate integrally. The motor with electromagnetic brake (1) is provided with a thrust generating mechanism (5) and a brake motor (6). The thrust generating mechanism (5) can translates rotational motion to linear motion to generate thrust force to move forward the brake stator (13) toward the brake rotor (12), and maintain brake state of the motor shaft (9). The rake motor (6) applies torque used to generate thrust on an actuator (5).

Description

technical field [0001] The present invention relates to an electric motor mounted on a vehicle as a driving force source, and more particularly to an electric motor equipped with an electromagnetic brake of an excitation operation type that brakes a motor shaft (output shaft) by using an electromagnetic force generated during energization. move. Background technique [0002] Patent Document 1 describes an invention related to a motor with an electromagnetic brake. In the motor with an electromagnetic brake described in Patent Document 1, a brake rotor of the electromagnetic brake is fixed to one end of a motor shaft (an output shaft of the motor). The electromagnetic brake is composed of a brake rotor having a cylindrical portion fixed to the motor shaft with a set screw and a disc portion on which a friction plate is mounted, and a brake stator having an armature, a spring, and an electromagnet. The armature is capable of approaching and moving away from the friction plat...

Claims

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Application Information

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Patent Type & AuthorityApplications(China)
IPC IPC(8): H02K7/102
CPCH02K7/1023B60L3/0076B60L7/26H02K7/1025F16D55/22B60T13/748F16D65/18F16D2121/20Y02T10/64B60L7/24F16D55/02H02K7/006H02K7/106
Inventor矶野宏杉谷伸芳久保爱三
OwnerTOYOTA JIDOSHA KK