Controlling device integrated rotating electric machine

Patent metadata

Field	Value
Publication number	US-10170957-B2
Application number	US-201615132350-A
Country	US
Kind code	B2
Filing date	Apr 19, 2016
Priority date	Nov 6, 2015
Publication date	Jan 1, 2019
Grant date	Jan 1, 2019

Abstract

A controlling device integrated rotating electric machine including a rotating electric machine's main body having a rotor winding and a stator winding, a power converter circuit connected to the rotor winding and the stator winding and having a control board and a power module and a smoothing condenser, a heat sink having a container portion swelling out towards a front side and attached to a rear side of the rotating electric machine's main body, a case, containing the control board and the power module, formed of a power supply wiring and a grounding wiring connected to a battery placed outside, and fixed to a rear side of the heat sink, and a sealing resin body sealing the control board and the power module contained in the case, wherein the smoothing condenser is joined with the power supply wiring and the grounding wiring, and is contained in the container portion.

First claim

What is claimed is:

1. A controlling device integrated rotating electric machine comprising:
a rotating electric machine's main body having a rotor winding and a stator winding,
a power converter circuit connected to the rotor winding and the stator winding and having a control board, a power module and a smoothing condenser,
a heat sink attached to a rear side of the rotating electric machine's main body and having heat radiating fins formed on a front side,
a case fixed to the rear side of the heat sink, the case containing the control board and the power module of the power converter circuit,
a container portion extending outward towards a front side from the case, and
a sealing resin body sealing the control board and the power module contained in the case,
wherein the smoothing condenser of the power converter circuit is contained in the container portion.

2. The controlling device integrated rotating electric machine as set forth in claim 1 , wherein the heat sink has the container portion.

3. The controlling device integrated rotating electric machine as set forth in claim 2 , wherein the case has a power supply wiring and a grounding wiring connected to a battery placed outside, and the smoothing condenser is joined with the power supply wiring and the grounding wiring.

4. The controlling device integrated rotating electric machine as set forth in claim 2 ,
wherein an enclosing bund member made of a resin is provided to the case to surround the smoothing condenser.

5. The controlling device integrated rotating electric machine as set forth in claim 2 , wherein a through hole is formed on a bottom face of the container portion of the heat sink.

6. The controlling device integrated rotating electric machine as set forth in claim 5 , wherein the bottom face of the container portion is slanted.

7. The controlling device integrated rotating electric machine as set forth in claim 2 , wherein a through hole is formed on a side face of the container portion of the heat sink.

8. The controlling device integrated rotating electric machine as set forth in claim 5 , wherein the through hole is closed with a filter.

9. The controlling device integrated rotating electric machine as set forth in claim 1 , further comprising a cover attached to the front side of the heat sink, the cover having the container portion,
wherein the heat sink has an opening portion formed at a location corresponding to the container portion of the cover.

10. The controlling device integrated rotating electric machine as set forth in claim 2 , further comprising a module substrate formed of a power supply wiring and a grounding wiring connected to a battery placed outside,
wherein the case has an opening portion formed at a location corresponding to the container portion which the heat sink has and closes the opening portion formed to the case.

11. The controlling device integrated rotating electric machine as set forth in claim 2 , wherein the case has a groove portion formed of a power supply wiring and a grounding wiring connected to a battery placed outside.

12. The controlling device integrated rotating electric machine as set forth in claim 11 , wherein the groove portion of the case is closed with a lid.

13. The controlling device integrated rotating electric machine as set forth in claim 12 , wherein a chimney like structure is provided to the lid to penetrate through the sealing resin body.

14. The controlling device integrated rotating electric machine as set forth in claim 2 , further comprising a module substrate formed of a power supply wiring and a grounding wiring connected to a battery placed outside,
wherein the case has an opening portion formed at a location corresponding to the container portion which the heat sink has and closes the opening portion formed to the case.

15. The controlling device integrated rotating electric machine as set forth in claim 14 ,
wherein the groove portion which the module substrate has is closed with a lid.

16. The controlling device integrated rotating electric machine as set forth in claim 1 , further comprising
a cover having a brim portion and the container portion, the brim portion fixed to the case or the heat sink with an adhesive, and
a module substrate formed of a power supply wiring and a grounding wiring connected to a battery placed outside and covering the cover,
wherein the heat sink has a first opening portion, the case has a second opening portion and
the container portion, which the cover has, penetrates through the first opening portion and the second opening portion.

17. The controlling device integrated rotating electric machine as set forth in claim 16 ,
wherein a chimney like structure is provided to the module substrate to penetrate through the sealing resin body.

18. The controlling device integrated rotating electric machine as set forth in claim 1 , further comprising
a cover having a brim portion and the container portion, the brim portion fixed to the case or the heat sink with an adhesive,
a module substrate having a second brim portion and a groove portion, the second brim portion attached to the first brim portion which the cover has and the groove portion formed of a power supply wiring and a grounding wiring connected a the battery placed outside, and
wherein the heat sink has a first opening portion,
the case has a second opening portion formed at the same location with the first opening portion which the heat sink has,
the container portion, which the cover has, penetrates through the first opening portion and the second opening portion.

19. The controlling device integrated rotating electric machine as set forth in claim 18 , wherein the groove portion, which the module substrate has, is closed with a lid.

20. The controlling device integrated rotating electric machine as set forth in claim 1 , further comprising
a cover having the container portion, and
a module substrate formed of a power supply wiring and a grounding wiring connected to the battery placed outside,
wherein the heat sink has an opening portion formed at a location corresponding to the container portion which the cover has, and
the module substrate is fixed to a front side of the case.

21. The controlling device integrated rotating electric machine as set forth in claim 1 , further comprising
a cover having the container portion, and
a module substrate having a brim portion and a groove portion, the brim portion fixed to a front side of the case and the groove portion formed of a power supply wiring and a grounding wiring connected to a battery placed outside,
wherein the heat sink has an opening portion formed at a location corresponding to the container portion which the cover has.

22. The controlling device integrated rotating electric machine as set forth in claim 7 , wherein the through hole is closed with a filter.

Assignees

• Mitsubishi Electric Corp

Inventors

• Ishizaki Mitsunori
• Shimano Tomoaki
• Uno Yosuke
• Kurita Tomohiro
• Fujita Masahiko

Classifications

• H02K11/05

  Rectifiers associated with casings, enclosures or brackets · CPC title

• H02K11/40

  Structural association with grounding devices · CPC title

• H02K5/24

  specially adapted for suppression or reduction of noise or vibrations · CPC title

• H02K11/33

  Drive circuits, e.g. power electronics (H02K11/38 takes precedence) · CPC title

• H02K5/10 Primary

  with arrangements for protection from ingress, e.g. water or fingers · CPC title