Electric machine having a mounting flange

Patent metadata

Field	Value
Publication number	US-2016294249-A1
Application number	US-201415034192-A
Country	US
Kind code	A1
Filing date	Oct 24, 2014
Priority date	Nov 5, 2013
Publication date	Oct 6, 2016
Grant date	—

Abstract

The invention relates to an electric machine ( 12 ) having a mounting flange ( 10 ) and to a method for producing an electric machine ( 12 ) of this kind having a mounting flange ( 10 ) of this type. Said mounting flange is arranged on a—preferably cylindrical—housing part ( 14 ) of said electric machine ( 12 ) in such a way that the mounting flange ( 10 ) at least in portions surrounds the housing part ( 14 ) in the circumferential direction ( 16 ) of said housing part ( 14 ), the mounting flange ( 10 ) and/or the housing part ( 14 ) being coated. The invention is characterized in that the mounting flange ( 10 ) has an at least radially directed raised portion ( 18 ) abutting the housing part ( 14 ), the mounting flange ( 10 ) being mounted on the housing part ( 14 ) by a welding process.

First claim

1 . An electric machine ( 12 ) having a mounting flange ( 10 ), wherein the mounting flange ( 10 ) is arranged on a housing part ( 14 ) of the electric machine ( 12 ) in such a way that the mounting flange ( 10 ) at least in portions surrounds the housing part ( 14 ) in a peripheral direction ( 16 ) of the housing part ( 14 ), wherein at least one of the mounting flange ( 10 ) and the housing part ( 14 ) is coated, characterized in that the mounting flange ( 10 ) has at least one radially directed raised portion ( 18 ), which abuts the housing part ( 14 ), wherein the mounting flange ( 10 ) is mounted on the housing part ( 14 ) by a welding process.

2 . The electric machine ( 12 ) as claimed in claim 1 , characterized in that the raised portion ( 18 ) of the mounting flange ( 10 ) extends axially along the housing part ( 14 ).

3 . The electric machine ( 12 ) as claimed in claim 1 , characterized in that the mounting flange ( 10 ) is produced from a sheet metal part, wherein the raised portion ( 18 ) is formed in one piece from the sheet metal part.

4 . The electric machine ( 12 ) as claimed in claim 1 , characterized in that the housing part ( 14 ) has a raised portion, which extends axially along the housing part ( 14 ) and which abuts the mounting flange ( 10 ).

5 . The electric machine ( 12 ) as claimed in claim 1 , characterized in that the mounting flange ( 10 ) has a circular collar ( 20 ), which surrounds the housing part ( 14 ) in the peripheral direction ( 16 ), wherein the collar ( 20 ) extends at least in portions axially along the housing ( 14 ), and the raised portion ( 18 ) is formed from the collar ( 20 ), and in that a radial gap ( 19 ) is formed between the collar ( 20 ) and the housing part ( 14 ), wherein the gap ( 19 ) extends in the peripheral direction ( 16 ) and in the axial direction ( 17 ).

6 . The electric machine ( 12 ) as claimed in claim 1 , characterized in that a stamping burr ( 49 ) is integrally molded on an axial end ( 24 ) of the collar ( 20 ), to which stamping burr a weld seam ( 22 ) is applied by laser welding, whereby the mounting flange ( 10 ) is mounted on the housing part ( 14 ).

7 . The electric machine ( 12 ) as claimed in claim 1 , characterized in that the mounting flange ( 10 ) is mounted on the housing part ( 14 ) by at least one lap weld seam ( 26 ), which is applied to a raised portion ( 18 ).

8 . The electric machine ( 12 ) as claimed in claim 7 , characterized in that the collar ( 20 ) has at least two raised portions ( 18 ) separated from one another in the peripheral direction ( 16 ) by an angle ( 28 ), and the weld seam ( 22 ) extends between the two raised portions ( 18 ) at an axial end ( 24 ) of the collar ( 20 ).

9 . The electric machine ( 12 ) as claimed in claim 1 , characterized in that the mounting flange ( 10 ) has, radially inwardly at one end ( 24 ) of the collar ( 20 ), a radius ( 21 ) or a chamfer-shaped flattening.

10 . The electric machine ( 12 ) as claimed in claim 1 , characterized in that the mounting flange ( 10 ) has, at a first end ( 25 ), at least one radially outwardly extending extension ( 48 ), such that the extension ( 48 ) is arranged transversely to the collar ( 20 ), wherein the extension ( 48 ) has receptacles ( 44 ) for connection elements.

11 . (canceled)

12 . A method for producing an electric machine ( 12 ) having a mounting flange ( 10 ), the method comprising
Positioning the mounting flange ( 10 ) on a peripheral wall ( 11 ) of the electric machine ( 12 ), such that a collar ( 20 ) of the mounting flange ( 10 ) abuts a peripheral wall ( 11 ) radially by means of raised portions ( 18 ), and Applying at least one weld seam ( 22 , 38 , 42 ) to at least one axial end ( 23 , 24 , 52 ) of the collar ( 20 ).

13 . The method as claimed in claim 12 , characterized in that the mounting flange ( 10 ) is mounted on a housing part ( 14 ) of the electric machine ( 12 ) by laser welding, and the weld seam ( 22 ) is formed in a peripheral direction ( 17 ) at an axial end ( 23 , 24 , 25 ) of the collar ( 20 ).

14 . The method as claimed in claim 12 , characterized in that the weld seam ( 22 ) is at least one of the following: a butt joint seam ( 42 ), which is welded on at an axial end ( 24 ) of the collar ( 20 ); a fillet seam ( 38 ), which is welded on at an axial end ( 24 ) of the collar ( 20 ); and a lap weld seam ( 26 ), which is welded on at an overlapping region of the collar ( 20 ) and of the housing part ( 14 ).

15 . The method as claimed in claim 13 , characterized in that, for the laser welding, a laser ( 30 ) encloses a welding angle ( 32 ) from 10° to 80°, relative to a motor axis ( 34 ) which extends in the axial direction ( 17 ).

16 . The method as claimed in claim 12 , characterized in that the mounting flange ( 10 ) is a cold-formed sheet metal part, which is produced by a deep drawing method, wherein at least one raised portion ( 18 ) is formed in one piece with the mounting flange ( 10 ), wherein at least one of the mounting flange ( 10 ) and the housing part ( 14 ) has a coating which contains tin, zinc, nickel, chromium or copper.

17 . The electric machine ( 12 ) as claimed in claim 1 , characterized in that the raised portion ( 18 ) of the mounting flange ( 10 ) extends axially along the housing part ( 14 ), and in that the raised portion ( 18 ) abuts the housing part ( 14 ) approximately linearly.

18 . The electric machine ( 12 ) as claimed in claim 1 , characterized in that the mounting flange ( 10 ) is produced from a sheet metal part, which is cold-formed, wherein the raised portion ( 18 ) is formed in one piece from the sheet metal part.

19 . The electric machine ( 12 ) as claimed in claim 1 , characterized in that the housing part ( 14 ) has a raised portion, which extends axially along the housing part ( 14 ) and which abuts the mounting flange ( 10 ), and in that the raised portion ( 18 ) abuts the mounting flange ( 10 ) approximately linearly.

20 . The electric machine ( 12 ) as claimed in claim 1 , characterized in that the mounting flange ( 10 ) is mounted on the housing part ( 14 ) by means of at least one lap weld seam ( 26 ), which is applied to a raised portion ( 18 ) radially from the outside.

21 . The electric machine ( 12 ) as claimed in claim 1 , characterized in that characterized in that the collar ( 20 ) has at least two raised portions ( 18 ) separated from one another in the peripheral direction ( 16 ) by an angle ( 28 ), and the weld seam ( 22 ) extends between the two raised portions ( 18 ) at an axial end ( 24 ) of the collar ( 20 ), and the weld seam ( 22 ) closed in the peripheral direction ( 16 ).

22 . The electric machine ( 12 ) as claimed in claim 1 , characterized in that a housing ( 15 ) of the electric machine ( 12 ) has, on a radially outer edge ( 13 ), a radius or a chamfer-shaped flattening, which serve as axial insertion aids.

23 . The electric machine ( 12 ) as claimed in claim 1 , characterized in that the mounting flange ( 10 ) has, at the first end ( 25 ), at least one radially outwardly extending extension ( 44 ), such that the extension ( 48 ) is arranged transversely to the collar ( 20 ), wherein the extension ( 48 ) has receptacles ( 44 ) for connection elements, wherein a band ( 46 ) is arranged between the collar ( 20 ) and extension ( 48 ), and the band ( 46 ) and the extension ( 48 ) lie in two different axial planes, wherein the extension ( 48 ) is offset.

24 . The method as c

Assignees

• Bosch Gmbh Robert

Inventors

• Keller Thomas
• Bauer Christian

Classifications

• H02K15/14

  Casings; Enclosures; Supports · CPC title

• B23K26/28

  of curved planar seams · CPC title

• B23K2201/36

  Operations & Transport · mapped topic

• H02K5/26 Primary

  Means for adjusting casings relative to their supports · CPC title

• H02K5/00 Primary

  Casings; Enclosures; Supports · CPC title