DRIVING DEVICE FOR VEHICLE UNITS

• US 20110030162A1
• Filed: 04/22/2009
• Published: 02/10/2011
• Est. Priority Date: 04/24/2008
• Status: Active Grant

• Current Assignee: Robert Bosch GmbH
• Original Assignee: Robert Bosch GmbH
• Inventors: Lauk, Detlef
• Granted Patent: US 8,410,651 B2
• Time in Patent Office: Days
• US Class Current: 15/250.3
• CPC Class Codes: B60S 1/166 characterised by the combination of a motor-reduction unit and a mechanism for converting rotary into oscillatory movement
• CPC Class Codes: H02K 11/0141 Shields associated with casings, enclosures or brackets
• CPC Class Codes: H02K 11/026 Suppressors associated with brushes, brush holders or their supports
• CPC Class Codes: H02K 11/38 Control circuits or drive circuits associated with geared commutator motors of the worm-and-wheel type
• CPC Class Codes: H02K 7/1166 comprising worm and worm-wheel structural association with bearings specially adapted for worm gear drives H02K7/081
• CPC Class Codes: Y10T 74/2186 Gear casings

Abstract

Disclosed is a driving device for a vehicle unit. Said driving device (10) comprises a pole housing (12) in which at least a portion of the driving motor (14) is arranged as well as a transmission housing (16) in which a transmission device (18) is arranged that can be driven by the driving motor (14). Said driving device (10) is characterized in that at least a portion of or essentially the entire pole housing (12) and/or transmission housing (16) has/have a metal shield.

Claims

1. A driving device for a vehicle unit, with the driving device (10) having a pole housing (12) in which at least a portion of the drive motor (14) is arranged, and a gear mechanism housing (16) in which a gear mechanism device (18) is arranged, it being possible for said gear mechanism device to be driven by means of the drive motor (14), characterized in that at least a portion of the pole housing (12) and/or gear mechanism housing (16) has a metal shield.

2. The driving device as claimed in claim 1, characterized in that the drive motor (14) is an electric motor which has a brush holder (34) and brush elements.

3. The driving device as claimed in claim 2, characterized in that the brush holder (34) and the brush elements are arranged in a receptacle (36) in the gear mechanism housing (16), with the receptacle (36) being in the form of a metal shield.

4. The driving device as claimed in claim 3, characterized in that an upper face and/or lower face of the receptacle (36) is covered by a covering element (42) which contains metal or a metal alloy.

5. The driving device as claimed in claim 1, characterized in that the gear mechanism housing (16) is covered by a gear mechanism cover (30), with the gear mechanism cover (30) containing metal, a metal alloy or plastic.

6. The driving device as claimed in claim 5, characterized in that the gear mechanism cover (30) has a receptacle (46) for accommodating a printed circuit board (48).

7. The driving device as claimed in claim 5, characterized in that the gear mechanism cover (30) has at least one plug connection and/or socket connection.

8. The driving device as claimed in claim 1, characterized in that the gear mechanism housing (16) has a receptacle for the gear mechanism device (18).

9. The driving device as claimed in claim 2, characterized in that the brush holder (34) and the brush elements are arranged in the pole housing (12).

10. The driving device as claimed in claim 1, characterized in that the driving device (10) drives a front windshield wiper device and/or a rear windscreen wiper device of the vehicle unit.

11. A driving device as claimed in claim 1, wherein substantially the entire pole housing (12) and/or gear mechanism housing (16) has a metal shield.

12. The driving device as claimed in claim 2, wherein the brush holder (34) has one or more electronic components (44).

13. The driving device as claimed in claim 12, wherein the electronic components (44) include an inductor and/or a capacitor.

14. The driving device as claimed in claim 4, wherein the covering element (42) has at least one or more electronic components (44).

15. The driving device as claimed in claim 14, wherein the electronic components (44) include a feed-through capacitor.

16. The driving device as claimed in claim 6, wherein the drive motor (14) has a brush holder (34) and brush elements, and wherein the printed circuit board (48) extends at least partially over the brush holder (34) and the brush elements.

17. The driving device as claimed in claim 16, wherein the covering element (42) is arranged between the printed circuit board (48) and the brush holder (34) and the brush elements.

18. The driving device as claimed in claim 8, wherein the receptacle and/or substantially the entire gear mechanism housing (16) contains metal or a metal alloy.

19. The driving device as claimed in claim 9, wherein the brush holder (34) and the brush elements are arranged in a stator casing (50) of the drive motor (14).

20. The driving device as claimed in claim 6, characterized in that the gear mechanism cover (30) has at least one plug connection and/or socket connection.