Actuator

• US 20150326089A1
• Filed: 12/12/2013
• Published: 11/12/2015
• Est. Priority Date: 12/14/2012
• Status: Active Grant

• Current Assignee: Vitesco Technologies GmbH (Continental AG)
• Original Assignee: Continental Automotive GmbH (Continental AG)
• Inventors: NEUNZIG, Dirk, FREY, Harald, KIORKTSIDIS, Charalampos, KREMINA, Vinzent, NOLL, Michael, KOHLEN, Peter, REIF, Jrg, OPRE, Calin
• Granted Patent: US 10,454,333 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: H02K 11/33 Drive circuits, e.g. power electronics H02K11/38 takes precedence
• CPC Class Codes: H02K 5/08 Insulating casings
• CPC Class Codes: H02K 7/116 with gears
• CPC Class Codes: H02K 9/223 Heat bridges
• CPC Class Codes: H02K 9/227 Heat sinks

Abstract

An actuator includes a metal housing that consists of multiple housing parts, an electric motor, an actuating member, a transmission mechanism that adapts the movement of the electric motor to the actuating member and an electronic system for controlling the electric motor. A heat sink is situated in a housing part consisting of plastic, said heat sink being connected to a metal housing part.

Claims

1-7. -7. (canceled)

8. An actuator comprising:

a housing having a plurality of housing parts, wherein at least one housing part is plastic and at least one housing part is plastic;

an electric motor arranged in the housing;

an actuating member;

a transmission mechanism configured to couple movement of the electric motor to the actuating member;

an electronics system configured to control the electric motor; and

a heat sink arranged in a region of the at least one housing part that is plastic, the heat sink being connected to a metal housing part.

9. The actuator as claimed in claim 8, wherein the at least one housing part is a plastic lid.

10. The actuator as claimed in claim 8, wherein the heat sink is a metal body.

11. The actuator as claimed in claim 10, wherein the metal body contains at least one metal having good thermal conductivity.

12. The actuator as claimed in claim 10, wherein the metal body is connected in one part to electrical conductor paths.

13. The actuator as claimed in claim 10, wherein the metal body has webs arranged in receptacles of the metal housing.

14. The actuator as claimed in claim 13, wherein the webs are formed such that they are arranged in the receptacles under preload.

15. The actuator as claimed in claim 11, wherein the at least one metal having good thermal conductivity is at least one of copper and aluminum.