RECTIFIER AND ELECTRIC MACHINE COMPRISING SAID TYPE OF DEVICE

• US 20090167122A1
• Filed: 08/17/2005
• Published: 07/02/2009
• Est. Priority Date: 08/21/2004
• Status: Abandoned Application

• Current Assignee: ICI, Robert Bosch GmbH
• Original Assignee: ICI
• Inventors: Rangarao, Ramesh, Ballesteros, Guillermo, Schurig, Dieter
• Application Number:
  US11/571,065
• Publication Number:
  US 20090167122A1
• Time in Patent Office: Days
• US Class Current: 310/68.D
• CPC Class Codes: H02K 11/05 Rectifiers associated with casings, enclosures or brackets

Abstract

The invention relates to a rectifier unit comprising one plus cooling body (27) which supports at least one plus-diode (32), and one minus cooling body (28) which supports at least one minus diode (31). A spacer (29), which is made of an insulating material (70), electrically separates the plus cooling body (27) and the minus cooling body (28). A wiring plate (30) comprises at least one conductor element which enables the at least one plus-diode (32) and the at least one minus-diode (31) to be wired in a bridge rectifier circuit. Said conductor element is a flat webbed cable (33). According to the invention, the flat webbed cable (33) supports a bolt-like connection (48).

Claims

1. A rectifier unit with a positive heat sink (27) on which at least one positive diode (32) is mounted, and a negative heat sink (28) on which at least one negative diode (31) is mounted, with a spacer (29) made of an insulating material (70) which electrically separates the positive heat sink (27) from the negative heat sink (28), with a wiring plate (30) with at least one conductor element which enables the at least one positive diode (32) and the at least one negative diode (31) to be wired in a bridge rectifier circuit;

the conductor element is a flat webbed cable (33),

wherein

the flat webbed cable (33) has a bolt-like connector (48).

2. The rectifier unit as recited in claim 1,

wherein

the flat webbed cable (33) has a U-shaped bolt receptacle (50) on which the bolt-type connector (48) is accommodated.

3. The rectifier unit as recited in claim 2,

wherein

the bolt-type connector (48) has a receiving neck (50) which is inserted in the U-shaped bolt receptacle (50).

4. The rectifier unit as recited in claim 1, wherein

the bolt-type connector (48) has a bolt section (55) located after the receiving neck (53), and on which the U-shaped bolt receptacle (50) is mounted.

5. The rectifier unit as recited in claim 4,

wherein

the bolt section (55) located after the receiving neck (53) has a form-fit contour (58) on its outer circumference, and the at least one conductor element of the wiring plate (30) is enclosed by insulating material (70) which encloses the form-fit contour (58).

6. The rectifier unit as recited in claim 3,

wherein

a collar (60) is located at least directly after the receiving neck (53), the outer diameter of which is greater than that of the receiving neck (53) and/or that of the bolt section (55) located after the receiving neck (53).

7. The rectifier unit as recited in claim 1,

wherein

a screw thread (62) is part of the bolt-type connector (48) in the direction toward an end opposite to the U-shaped bolt receptacle (50).

8. The rectifier unit as recited in claim 1,

wherein

the flat webbed cable (33) is bonded with the bolt-type connector (48), via welding or soldering in particular.

9. An electric machine, particularly an alternator, with a rectifier unit (10) as recited in claim 1,

wherein

a protective cap (90) covers the rectifier unit (10), and the bolt-type connector (48) extends through an opening (92) in the protective cap (90).