Motor Arrangement

• US 20100072931A1
• Filed: 03/20/2008
• Published: 03/25/2010
• Est. Priority Date: 03/29/2007
• Status: Active Grant

• Current Assignee: Robert Bosch GmbH
• Original Assignee: Robert Bosch GmbH
• Inventors: Kunkel, Helmut, Bodner, Rudolf
• Granted Patent: US 8,339,088 B2
• Time in Patent Office: Days
• US Class Current: 318/445
• CPC Class Codes: H01B 9/003 including electrical control or communication wires
• CPC Class Codes: H02K 11/20 for measuring, monitoring, testing, protecting or switching rectifiers H02K11/04; power electronics H02K11/33
• CPC Class Codes: H02K 11/33 Drive circuits, e.g. power electronics H02K11/38 takes precedence
• CPC Class Codes: H02P 29/00 Arrangements for regulating or controlling electric motors, appropriate for both AC and DC motors arrangements for starting electric motors H02P1/00; arrangements for stopping or slowing electric motors H02P3/00; control of motors that can be connected to two or more different electric power supplies H02P4/00; regulating or controlling the speed or torque of two or more electric motors H02P5/00; vector control H02P21/00

Abstract

The invention relates to a motor arrangement (1) comprising a motor (4) on which a transmitter device (6) is arranged, a regulating device (2) which is spatially separated from the motor, communicates with the motor (4) via at least one motor line/connection line (10), and controls the movement of the motor, and at least one sensor device (8) which is arranged on the motor (4), detects at least one physical property of the motor, and emits a signal characterising said physical property, the transmitter device (6) being connected to the regulating device (2) via the connection line. According to the invention, there is a direct communication connection (9) between the sensor device (8) and the transmitter device (6), by which means the sensor device (8) transmits the characteristic signal directly to the transmitter device (6).

Claims

1. A motor arrangement (1) comprising:

a motor (4), on which a transmitter device (6) is arranged;

a regulating device (2) which is spatially separated from the motor, in communication with the motor (4) via at least one motor line (10), and controlling the movement of the motor, and

at least one sensor device (8) which is arranged on the motor (4), for detecting at least one physical property of the motor and emitting a signal characterizing said physical property, wherein the transmitter device (6) is connected to the regulating device (2), the motor arrangement characterized in that there is a direct communication connection (9) between the sensor device (8) and the transmitter device (6), by means of which the sensor device (8) transmits the characteristic signal directly to the transmitter device (6).

2. The motor arrangement according to claim 1, characterized in that the transmitter device has a processor device being configured such that an output signal is transmitted to the regulating device (2) in response to the characteristic signal transmitted by the sensor device.

3. The motor arrangement according to claim 1, characterized in that the motor arrangement (1) comprises a plurality of sensor devices (8, 14, 16), wherein the individual sensor devices are each connected to the transmitter device (6) via sensor connection lines (9, 11, 13).

4. The motor arrangement according to claim 1, characterized in that the sensor device is selected from a group of sensor devices comprising:

temperature sensor devices, position sensor devices, speed sensor devices, power sensor devices, acceleration sensor devices, combinations thereof, and the like.

5. The motor arrangement according to claim 1, characterized in that at least one sensor device (8, 14, 16) communicates bi-directionally with the transmitter device (6).

6. The motor arrangement according to claim 3, characterized in that at least one sensor device (8, 14, 16) communicates bi-directionally with the transmitter device (6).

7. The motor arrangement according to claim 1, characterized in that the motor arrangement comprises a braking device (18), which communicates with the transmitter device.

11. The motor arrangement according to claim 5, characterized in that the motor arrangement comprises a braking device (18), which communicates with the transmitter device.

12. The motor arrangement according to claim 6, characterized in that the motor arrangement comprises a braking device (18), which communicates with the transmitter device.

13. The motor arrangement according to claim 1, characterized in that the motor line comprises three power lines (34, 36, 38), one ground line (40), and two control lines.

8. An electric connection line (10) for connecting a motor with a regulating device (2) controlling the motor, comprising:

an exterior shielding (32);

at least three power lines (34, 36, 38) extending within said exterior shielding, which are surrounded by an electrically insulating sheathing (35, 37, 39), comprising a ground line (40), and comprising a control line (42) extending within the exterior shielding (32),

characterized in that two control wires (44, 46) are arranged within the control line, which are surrounded by a second shielding (45), wherein the second shielding (45) and the exterior shielding (32) are insulated against each other, and wherein an electric contact device (49) is arranged on the second shielding (45) on at least one end of the electric connection line, which communicates with the second electric shielding in an electrically conducting manner.

9. The electric connection line according to claim 8, characterized in that the cross-section of at least one sheathing (35, 37, 39, 41, 47) is configured in an asymmetric manner at least on one end of the connection line.

10. The electric connection line according to claim 9, characterized in that the cross-section of at least one sheathing (35, 37, 39, 41, 47) comprises a protrusion that protrudes toward the exterior with regard to the sheathing.