Motor arrangement

• US 8,339,088 B2
• Filed: 03/20/2008
• Issued: 12/25/2012
• Est. Priority Date: 03/29/2007
• Status: Active Grant

• Current Assignee: Robert Bosch GmbH
• Original Assignee: Robert Bosch GmbH
• Inventors: Kunkel, Helmut, Bodner, Rudolf
• Primary Examiner(s): Ip, Paul
• Application Number:
  US12/593,839
• Publication Number:
  US 20100072931A1
• Time in Patent Office: 1,741 Days
• Field of Search: 318 30- 40, 318 80- 90, 318/568.22, 318/611, 318/474, 700/278, 700/19, 700/278.19
• US Class Current: 318/474
• 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

a plurality of sensor devices (8, 14, 16) which are arranged on the motor (4) and each directly connected to the transmitter device (6) via a respective sensor connection line (9, 11, 13), for detecting at least one physical property of the motor, and emitting a signal characterizing said physical property and transmitting the signal directly to the transmitter device (6), wherein the transmitter device (6) is connected to the regulating device (2), and transmits an output signal representative of the physical property to the regulating device (2);

wherein the motor line comprises;

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);

a ground line (40) extending within the exterior shielding (32), and

a control line (42) extending within the exterior shielding (32), the control line containing-two control wires (44, 46) arranged therein, the control wires (44, 46) being-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 motor line, which communicates with the second electric shielding in an electrically conducting manner.

2. The electric connection line according to claim 1, 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.

3. The electric connection line according to claim 2, 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.

4. A motor arrangement (1) comprising:

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

a regulating device (2) spatially separated from the motor and in communication with the motor (4);

a motor line (10) connecting the regulating device (2) and the motor (4) to facilitate control of motor movement by the regulating device (2), the motor line including;

an exterior shielding (32);

at least three power lines (34, 36, 38) extending within the exterior shielding, each being surrounded by an electrically insulating sheathing (35, 37, 39);

a ground line (40); and

a control line (42) extending within the exterior shielding (32), the control line containing two control wires (44, 46), each surrounded by a second shielding (45), wherein the second shielding (45) and the exterior shielding (32) are insulated against each other, and

an electric contact device (49) arranged on the second shielding (45) on at least one end of the motor line, for communicating with the second electric shielding in an electrically conducting manner; and

at least one sensor device (8) arranged on the motor (4) and in direct communication (9) with the transmitter device (6), for detecting at least one physical property of the motor, emitting a signal characterizing said physical property and transmitting the signal directly to the transmitter device (6),

wherein the transmitter device (6) connects with the regulating device (2), and transmits an output signal representative of the physical property to the regulating device.

5. The motor arrangement according to claim 4, the transmitter device (6) comprising a processor for processing the characteristic signal from the sensor device and determining the representative output signal.

6. The motor arrangement according to claim 4, the at least one sensor device comprising a plurality of sensor devices (8, 14, 16), each directly connected to the transmitter device (6) via a respective sensor connection line (9, 11, 13).

7. The motor arrangement according to claim 6, wherein at least one of the plurality of sensor devices (8, 14, 16) communicates bi-directionally with the transmitter device (6).

8. The motor arrangement according to claim 4, the sensor device being selected from the group consisting essentially of:

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

9. The motor arrangement according to claim 4, further comprising a braking device (18) in communication with the transmitter device.

10. In a motor arrangement having a motor housed with a transmitter and at least one sensor, the improvement comprising:

a motor line (10) connecting the motor (4) with a regulating device (2), the motor line having;

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);

a ground line (40) extending within the exterior shielding (32), and

a control line (42) extending within the exterior shielding (32), the control line containing two control wires (44, 46) arranged therein, the control wires (44, 46) being 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 motor line, which communicates with the second electric shielding in an electrically conducting manner.