# US 12,224,630 B2 · Electric actuator

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- Number: US 12,224,630 B2
- Document ID: US12224630B2
- Status: Granted
- Kind: B2
- Application number: 15/733,916
- Filed: 2019-03-06
- Published: 2021-09-02
- Granted: 2025-02-11
- Earliest claimed: 2018-06-04
- Assignees: Hanon Systems Efp Deutschland GmbH
- Applicants: Hanon Systems Efp Deutschland GmbH
- Inventors: Karl Prinzhorn; Alexander Prophet
- Web page: https://patentgrep.com/patent/US12224630B2

## CPC

- H02K 11/33: Drive circuits, e.g. power electronics (H02K11/38 takes precedence)
- H02K 1/18: Means for mounting or fastening magnetic stationary parts on to, or to, the stator structures
- H02K 5/02: Casings or enclosures characterised by the material thereof
- H02K 5/04: Casings or enclosures characterised by the shape, form or construction thereof
- H02K 5/10: with arrangements for protection from ingress, e.g. water or fingers
- H02K 5/16: Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields (magnetic bearings H02K7/09)
- H02K 7/083: {radially supporting the rotary shaft at both ends of the rotor (H02K7/086, H02K7/09 take precedence)}
- H02K 7/116: with gears
- H02K 5/1732: {radially supporting the rotary shaft at both ends of the rotor (H02K5/1737 takes precedence)}
- H02K 2203/03: Machines characterised by the wiring boards, i.e. printed circuit boards or similar structures for connecting the winding terminations
- H02K: DYNAMO-ELECTRIC MACHINES (dynamo-electric relays H01H53/00; conversion of DC or AC input power into surge output power {H03K3/53})

## Abstract

The disclosure relates to an electric actuator having an electric motor comprising a rotor which is arranged such that it can rotate about an axis of rotation in a stator housing having an axial installation length. To simplify accommodating the electric actuator in a limited axial installation space, the stator housing is arranged with an axial end in a controller housing and is fastened within the controller housing.

## Claims

### Claim 1

An electric actuator having an electric motor comprising a rotor which is arranged such that it rotates about an axis of rotation in a stator housing having an axial installation length, wherein the stator housing is arranged with an axial end in a controller housing and is fastened within the controller housing,
wherein the stator housing comprises a stator pot including a flange region and a pot base, wherein the pot base is positioned on a side facing away from the flange region, the stator housing is arranged in the controller housing at the axial end and in a transmission housing at an opposite axial end, the stator housing is arranged entirely within a cavity which is delimited by a recess of the controller housing and a recess of the transmission housing such that the stator pot is encapsulated within the cavity, wherein the electric actuator further comprises a first bearing for a rotor shaft of the rotor, the first bearing being positioned in the pot base.

### Claim 2 (depends on 1)

The electric actuator according to claim 1, wherein the stator pot is made of a metal material and the stator housing is crimped inside the controller housing.

### Claim 3 (depends on 1)

The electric actuator according to claim 1, wherein the stator housing is crimped with a plastic housing body of the controller housing at at least two crimping points.

### Claim 4 (depends on 1)

The electric actuator according to claim 1, wherein the controller housing comprises an annular body with which the controller housing abuts against an end face of the transmission housing.

### Claim 5 (depends on 1)

The electric actuator according to claim 1, wherein radially outside the stator housing a sealing device is arranged between the controller housing and the transmission housing.

### Claim 6 (depends on 1)

The electric actuator according to claim 1, wherein a second bearing for the rotor shaft is arranged inside the controller housing.

### Claim 7 (depends on 1)

The electric motor, stator, stator housing, rotor, rotor shaft, bearing, transmission housing and/or sealing device for an electric actuator according to claim 1.