Electromechanical arrangement for driving and/or braking a shaft
IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0143356
(2010-01-29)
|
등록번호 |
US-8618705
(2013-12-31)
|
우선권정보 |
DE-10 2009 001 014 (2009-02-19) |
국제출원번호 |
PCT/EP2010/051047
(2010-01-29)
|
§371/§102 date |
20110706
(20110706)
|
국제공개번호 |
WO2010/094544
(2010-08-26)
|
발명자
/ 주소 |
- Wolf, Daniel
- Munster, Martin
|
출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
0 인용 특허 :
9 |
초록
▼
An electromechanical device for driving and/or braking a shaft (1) includes an electric motor having a rotor (2) that is rotationally fixed to the shaft (1), and a stator (4) supported in a housing (3) around the shaft (1) with a rotational degree of freedom in the peripheral direction in the direct
An electromechanical device for driving and/or braking a shaft (1) includes an electric motor having a rotor (2) that is rotationally fixed to the shaft (1), and a stator (4) supported in a housing (3) around the shaft (1) with a rotational degree of freedom in the peripheral direction in the direction of brake actuation. The stator (4) is operatively connected to the brake pad (7) by a device (5) that converts rotational movement of the stator (4) into axial movement of at least one brake pad (7) that is supported in an axially movable fashion such that, when the electric motor is operated as a generator, the stator (4) is rotated relative to the housing (3) by torque arising between the rotor (2) and the stator (4), such that the brake pad (7) is pressed by the device (5) against the brake disc (8).
대표청구항
▼
1. An electromechanical device for at least one of driving and braking a shaft (1), the electromechanical device comprising: an electric motor having a rotor (2) that is fixedly connected to the shaft (1), anda stator (4) being supported in a housing (3) around the shaft (1) with a rotational degree
1. An electromechanical device for at least one of driving and braking a shaft (1), the electromechanical device comprising: an electric motor having a rotor (2) that is fixedly connected to the shaft (1), anda stator (4) being supported in a housing (3) around the shaft (1) with a rotational degree of freedom in a peripheral direction in a direction of brake actuation,the stator (4) being operatively connected to the brake pad (7) by a device (5) that converts rotational movement of the stator (4) into axial movement of at least one brake pad (7) that is supported in an axially movable fashion such that, when the electric motor is operated as a generator, the stator (4) is rotated relative to the housing (3) by torque arising between the rotor (2) and the stator (4), the brake pad (7) is biased by the device (5) against the brake disc (8). 2. The electromechanical device for at least one of driving and braking the shaft (1) according to claim 1, wherein the device (5) is a lead screw (5) designed as one of a ball screw spindle and a ball ramp that is operatively connected to the stator (4) on one side and at least one brake pad (7) on the other side. 3. The electromechanical device for at least one of driving and braking the shaft (1) according to claim 2, wherein the stator (4) is axially fixed to the housing such that rotation of the stator (4), upon actuation of the brake, causes the lead screw (5) to shift axially relative to the fixed housing (3), and axial movement of the lead screw (5) being transferred, via a support (6) for decoupling the rotational movement to at least one axially movable brake pad (7) supported in the housing (3). 4. The electromechanical device for at least one of driving and braking the shaft (1) according to claim 3, wherein the electric motor being operable as a motor to generate drive torque that is braced against a stop in the peripheral direction of the stator (4) such that the drive torque is transferred via the rotor (2) to the shaft (1). 5. The electromechanical device for at least one of driving and braking the shaft (1) according to claim 2, wherein the stator (4) is fixedly connected to the lead screw (5) and is axially movable depending on rotational movement of the stator (4), with the lead screw (5) being supported in the housing (3) and connected to the brake pad (7) in an axial direction in a keyed fit. 6. The electromechanical device for at least one of driving and braking the shaft (1) according to claim 1, wherein the electric motor is operable as a motor to generate drive torque that is braced against an axial housing stop such that drive torque is transferred to the shaft (1) via the rotor (2). 7. The electromechanical device for at least one of driving and braking the shaft (1) according to claim 2, wherein a transmission is provided between the stator (4) of the electric motor and the lead screw (5). 8. The electromechanical device for at least one of driving and braking the shaft (1) according to claim 7, wherein the transmission is a planetary gear set (9). 9. The electromechanical device for at least one of driving and braking the shaft (1) according to claim 8, wherein the stator (4) is fixedly connected to a sun gear of the planetary gear set (9), a ring gear of the planetary gear set (9) is coupled to the housing (3), and the lead screw (5) is connected to a carrier of the planetary gear set (9). 10. The electromechanical device for at least one of driving and braking the shaft (1) according to claim 2, wherein the device further comprises a clutch (10) which, when actuated, causes the brake to be actuated such that the brake is prevented from malfunctioning due to a failure of the electric motor. 11. The electromechanical device for at least one of driving and braking the shaft (1) according to claim 10, wherein the clutch, when engaged, connects the stator (4) to the shaft (1) to be braked, and causes rotation of the stator (4) and thus actuation of the brake. 12. The electromechanical device for at least one of driving and braking the shaft (1) according to claim 11, wherein the clutch (10) is disengaged electromagnetically. 13. The electromechanical device for at least one of driving and braking the shaft (1) according to claim 11, wherein a least one friction surface (12) is pressed by a force of at least one spring (13) against a disc (14) that is non-rotatably connected to the shaft (1) to be braked such that the clutch (10), and thus the stator (4) connected to the clutch (10), rotate which causes the brake to be actuated, and an electromagnetic device is actuated to disengage the clutch (10) and move the friction surfaces (12) in a disengaging direction of the clutch (10) against the force of the spring (13). 14. The electromechanical device for at least one of driving and braking the shaft (1) according to claim 10, wherein the clutch is a single-surface magnetic clutch.
이 특허에 인용된 특허 (9)
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Olschewski, Armin Herbert Emil August; Kapaan, Hendrikus Jan; Druet, Clair; Fucks, Thomas Wilhelm; Antensteiner, Manfred; Rinsma, Andries Christian; Gurka, Jiri; De Vries, Alexander Jan Carel, Actuator having a central support, and brake calliper comprising such actuator.
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Yoshino, Tsutomu; Oku, Koichi, Brake structure for wheel rotating device.
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Nakazeki, Tsugito, Electric direct-acting actuator and electric brake device.
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Holding Keith Lawrence,GBX, Electrically-operated disc brake assemblies for vehicles.
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Bill Karlheinz,DEX ; Balz Jurgen,DEX ; Dusil Vladimir,DEX, Electromechanical disc brake.
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Schumann Frank,DEX, Electromechanically actuatable brake.
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Boris Koth DE; Kurt Mohr DE; Salvatore Oliveri DE, Electromechanically actuatable disk brake.
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Hendrikus Jan Kapaan NL; Jacobus Zwarts NL; Andries Christian Rinsma NL; Johannes Albertus Van Winden DE; Clair Druet FR; Alexander Jan Carel De Vries NL; Armin Herbert Emil August Olschewski , Modular actuator, and brake caliper comprising such actuator.
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Hunnicutt Harry A. (Ann Arbor MI) Buckley James A. V. (Whitefish Bay WI), Self-adjusting caliper.
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