Drive device

• US 8,373,322 B2
• Filed: 05/09/2008
• Issued: 02/12/2013
• Est. Priority Date: 07/09/2007
• Status: Active Grant

• Current Assignee: Robert Bosch GmbH
• Original Assignee: Robert Bosch GmbH
• Inventors: Wegner, Nobert, Mueller, Andreas
• Primary Examiner(s): LE, DANG D
• Application Number:
  US12/668,490
• Publication Number:
  US 20100186548A1
• Time in Patent Office: 1,740 Days
• Field of Search: 310/83, 310/89, 746/06.R
• US Class Current: 310/83
• 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: F16H 57/027 characterised by means for venting gearboxes, e.g. air breathers
• CPC Class Codes: H02K 2205/09 Machines characterised by drain passages or by venting, breathing or pressure compensating means
• CPC Class Codes: H02K 5/10 with arrangements for protection from ingress, e.g. water or fingers
• 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

The invention relates to a drive device (1), in particular for window wiping devices in motor vehicles, having a motor housing (2) which is fixed to a gearbox housing (3) which has a housing upper side (7), and having an air-permeable diaphragm (14) which closes off an opening (15) which is provided in the gearbox housing (3), said diaphragm (14) having the purpose of equalizing pressure when fluctuations in temperature occur. The invention provides that the diaphragm (14) is arranged on a housing side section (16) which runs at an angle to a housing upper side (7). In addition, the invention relates to a motor vehicle having a mounted drive device (1).

Claims

1. A drive device, having a motor housing (2) which is fixed to a gearing housing (3) which has a housing upper side (7), and having an air-permeable diaphragm (14), which closes off an opening (15) provided in the gearing housing (3), characterized in that the diaphragm (14) is arranged on a housing side section (16) which runs at an angle with respect to a housing upper side (7), characterized in that at least one section (30) of the diaphragm (14) is covered by the motor housing (2), such that an air gap (17) remains.

2. The drive device as claimed in claim 1, characterized in that the housing side section (16) runs at least approximately at right angles to the housing upper side (7).

3. The drive device as claimed in claim 1, characterized in that the diaphragm (14) is arranged in a plane which runs at least approximately perpendicular to the housing upper side (7).

4. The drive device as claimed in claim 1, characterized in that the housing upper side (7) is defined by a housing lid surface (6) of a housing lid (5) having a collar (8) which runs at right angles to the housing lid surface (6).

5. The drive device as claimed in claim 4, characterized in that the housing side section (16) which holds the diaphragm (14) is formed by the collar (8).

6. The drive device as claimed in claim 1, characterized in that the motor housing (2) adjoins a housing side (12) which contains the housing side section (16).

7. The drive device as claimed in claim 1, characterized in that the diaphragm (14) is one of adhesively bonded and welded to the housing side section (16).

8. The drive device as claimed in claim 7, characterized in that the diaphragm (14) is ultrasound-welded to the housing side section (16).

9. The drive device as claimed in claim 1, characterized in that the diaphragm (14) is arranged in an injection-molded frame (26) which is composed of plastic and which is fixed to the housing side section (16).

10. The drive device as claimed in claim 9, characterized in that the frame (26) is fixed in a positively locking manner to the housing side section (16).

11. The drive device as claimed in claim 10, characterized in that the frame (26) is fixed by latching to the housing side section (16).

12. The drive device as claimed in claim 9, characterized in that the injection-molded frame (26) is fixed to the housing side section (16) by being injection-molded in the housing side section (16).

13. The drive device as claimed in claim 1, characterized in that the diaphragm (14) is arranged so as to close off at least two spaced-apart openings (15) which are connected to one another by means of a duct (31) which is arranged on the outer side of the housing side section (16) between the housing side section (16) and the diaphragm (14).

14. A motor vehicle having a windscreen wiper system and a drive device (1) connected to the windscreen wiper system, the drive device having a motor housing (2) which is fixed to a gearing housing (3) which has a housing upper side (7), and having an air-permeable diaphragm (14), which closes off an opening (15) provided in the gearing housing (3), characterized in that the diaphragm (14) is arranged on a housing side section (16) which runs at an angle with respect to a housing upper side (7), characterized in that at least one section (30) of the diaphragm (14) is covered by the motor housing (2), such that an air gap (17) remains.

15. The motor vehicle as claimed in claim 14, characterized in that the diaphragm (14) is arranged in an at least approximately vertical plane.

16. A drive device, for a windscreen wiper system in a motor vehicle, having a motor housing (2) which is fixed to a gearing housing (3) which has a housing upper side (7), and having an air-permeable diaphragm (14), which closes off an opening (15) provided in the gearing housing (3), characterized in that the diaphragm (14) is arranged on a housing side section (16) which runs at an angle with respect to a housing upper side (7), and in that the diaphragm (14) is arranged in an injection-molded frame (26) which is composed of plastic and which is fixed to the housing side section (16) by being injection-molded in the housing side section (16).

17. The drive device as claimed in claim 16, characterized in that the diaphragm (14) is arranged in a plane which runs at least approximately perpendicular to the housing upper side (7).

18. The drive device as claimed in claim 16, characterized in that the housing upper side (7) is defined by a housing lid surface (6) of a housing lid (5) having a collar (8) which runs at right angles to the housing lid surface (6).

19. The drive device as claimed in claim 18, characterized in that the housing side section (16) which holds the diaphragm (14) is formed by the collar (8).

20. The drive device as claimed in claim 16, characterized in that the motor housing (2) adjoins a housing side (12) which contains the housing side section (16).

21. The drive device as claimed in claim 16, characterized in that at least one section (30) of the diaphragm (14) is covered by the motor housing (2), such that an air gap (17) remains.