Controller and rectifier for an electrical machine, and electrical machine

• US 6,954,013 B2
• Filed: 12/07/2002
• Issued: 10/11/2005
• Est. Priority Date: 03/28/2002
• Status: Expired due to Fees

• Current Assignee: Robert Bosch GmbH
• Original Assignee: Robert Bosch GmbH
• Inventors: Balszunat, Dirk, Henkel, Achim, Milich, Reinhard
• Primary Examiner(s): Schuberg, Darren
• Assistant Examiner(s): PHAM, LEDA T
• Application Number:
  US10/493,007
• Publication Number:
  US 20050007708A1
• Time in Patent Office: 1,039 Days
• Field of Search: 310/68.D, 310/54, 310/58, 310/64, 310/52, 310/71, 310/68.C, 310/239, 310/68.R, 363/145, 29596-589
• US Class Current: 310/68.00D
• CPC Class Codes: H01L 2224/291 with a principal constituent of the material being a metal or a metalloid, e.g. boron [B], silicon [Si], germanium [Ge], arsenic [As], antimony [Sb], tellurium [Te] and polonium [Po], and alloys thereof
• CPC Class Codes: H01L 2224/32245 the item being metallic
• CPC Class Codes: H01L 2224/33181 On opposite sides of the body
• CPC Class Codes: H01L 2924/014 Solder alloys
• CPC Class Codes: H02K 11/05 Rectifiers associated with casings, enclosures or brackets
• CPC Class Codes: H02K 19/36 Structural association of synchronous generators with auxiliary electric devices influencing the characteristic of the generator or controlling the generator, e.g. with impedances or switches
• CPC Class Codes: H05K 1/0289 having a matrix lay-out, i.e. having selectively interconnectable sets of X-conductors and Y-conductors in different planes
• CPC Class Codes: H05K 1/185 Components encapsulated in the insulating substrate of the printed circuit or incorporated in internal layers of a multilayer circuit semiconductor chips encapsulated by interconnect and support structures H01L23/5389, H01L24/00
• CPC Class Codes: H05K 3/202 using self-supporting metal foil pattern

Abstract

A controller and rectifier for an electrical machine, in particular a three-phase generator for motor vehicles, is proposed in which the controller (13) and the rectifier (16) are embodied as an one-piece module (10).

Claims

1. A controller and rectifier for an electrical machine the form of a rotary current generator for motor vehicles, wherein the controller (13) and the rectifier (16) are embodied as a one-piece module (10), wherein a first conductor track (25) and a second conductor track (28) between them receive a rectifier element (46), and wherein the rectifier element (46) is soldered by a first side to the first conductor track (25) and by a second side the second conductor track (28).

2. The controller and rectifier of claim 1, wherein the rectifier (16) and the controller (18) are extrusion coated or surrounded with a substance (52) that protects against corrosion.

3. The controller and rectifier of claim 2, wherein substance (52) has openings (55), in the surroundings of the rectifier elements (46), for cooling the rectifier elements (46).

4. The controller and rectifier of claim 3, wherein the openings (55) in the substance (52) leave the first and/or the second conductor track (25 and 28, respectively) partly uncovered by the substance (52).

5. The controller and rectifier of claim 4, wherein a heat sink (58) thermally conductively contacts at least one conductor track (25 or 28) at the openings (55) that are uncovered by the substance (52).

6. The controller and rectifier of claim 1, wherein a controller chip on a conductor track that contacts a negative terminal (B−

) is electrically conductively secured to that conductor track.

7. The controller and rectifier of claim 1, wherein a brush holder (37) is jointly integrated with the one-piece module (10).

8. The controller and rectifier of claim 1, wherein the at least one rectifier element (46) is a passively or actively rectifying electrical element.

9. An electrical machine, wherein the controller and rectifier are embodied in accordance with claim 1.