# US 2014/0191605 A1 · Electric motor, in particular radiator fan motor

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- Number: US 2014/0191605 A1
- Document ID: US20140191605A1
- Status: Published application
- Kind: A1
- Application number: 14/206,187
- Filed: 2014-03-12
- Published: 2014-07-10
- Earliest claimed: 2011-09-12
- Assignees: Brose Fahrzeugteile GmbH & Co. Kommanditgesellschaft, Wuerzburg
- Applicants: Brose Fahrzeugteile GmbH & Co. Kommanditgesellschaft, Wuerzburg
- Inventors: FRANK MAUCH; TOBIAS OTT; THOMAS SCHENCK; ARTUR SCHMIDT; HERMANN SCHULZ; JAN GWOZDZ; THOMAS ZIEGLER; THOMAS HUSSY
- Web page: https://patentgrep.com/patent/US20140191605A1

## CPC

- H02K 5/10: with arrangements for protection from ingress, e.g. water or fingers
- F04D 13/0686: {Mechanical details of the pump control unit (pump control F04D15/00)}
- F04D 29/646: {Mounting or removal of fans}
- H02K 3/522: {for generally annular cores with salient poles}
- H02K 5/00: Casings; Enclosures; Supports
- H02K 5/02: Casings or enclosures characterised by the material thereof
- H02K 5/225: {Terminal boxes or connection arrangements (specially adapted for submersible motors H02K5/132)}
- H02K 7/14: Structural association with mechanical loads, e.g. with hand-held machine tools or fans (with fan or impeller for cooling the machine H02K9/06)
- H02K 11/33: Drive circuits, e.g. power electronics (H02K11/38 takes precedence)
- H02K: DYNAMO-ELECTRIC MACHINES (dynamo-electric relays H01H53/00; conversion of DC or AC input power into surge output power {H03K3/53})
- F04D: NON-POSITIVE-DISPLACEMENT PUMPS (engine fuel-injection pumps F02M; ion pumps H01J41/12; electrodynamic pumps H02K44/02)

## Abstract

An electric motor, in particular a radiator fan motor of a motor vehicle, has a rotor which is mounted such that it can rotate in relation to a stator, a motor mount which has an electronics compartment for accommodating a converter electronics system, and an electronics compartment cover. The electronics compartment cover has a peripheral sealing groove into which a peripheral edge of the electronics compartment engages by way of a corresponding sealing web in order to reliably seal off the electronics compartment.

## Claims

### Claim 1

An electric motor, comprising:
a stator;
a rotor mounted rotatably with respect to said stator; and
a motor mount containing an electronics compartment having a peripheral edge with a sealing web for accommodating a convertor electronics system, said motor mount further having an electronics compartment cover with a peripheral sealing groove with which said peripheral edge of said electronics compartment engages via said sealing web.

### Claim 2 (depends on 1)

The electric motor according to claim 1,
wherein said motor mount has ribs extending radially; and
further comprising at least two fixing clamps integrally molded on said electronics compartment cover on opposite sides and which pass over said ribs.

### Claim 3 (depends on 1)

The electric motor according to claim 1, wherein said electronics compartment cover has a number of spacing pawls for bearing against said sealing web of said electronics compartment and are molded into said peripheral sealing groove on a cover side.

### Claim 4 (depends on 1)

The electric motor according to claim 1, wherein said peripheral sealing groove on a cover side and said sealing web of said electronics compartment define a filling gap there-between for receiving a sealing material or adhesive.

### Claim 5 (depends on 1)

The electric motor according to claim 1, further comprising a plastic casing over-molding said stator;
wherein said motor mount has a plurality of fixing openings formed therein; and
further comprising a number of caulking nubs integrally formed on said plastic casing, said caulking nubs passing through said fixing openings and being deformed for joining said motor mount and said stator.

### Claim 6 (depends on 5)

The electric motor according to claim 5, wherein said stator has sealing elements and stator-side rotating-field windings with winding ends guided into said electronics compartment via said sealing elements.

### Claim 7 (depends on 6)

The electric motor according to claim 6, wherein:
said motor mount has sealing openings formed therein; and
said sealing elements have a comparatively hard supporting component and a comparatively soft sealing component sitting in a sealing manner in said sealing openings in said motor mount.

### Claim 8 (depends on 7)

The electric motor according to claim 7, wherein said comparatively soft sealing component of said sealing elements is formed as a labyrinth seal.

### Claim 9 (depends on 7)

The electric motor according to claim 7, wherein:
said plastic casing has a receiving pocket; and
said comparatively hard supporting component of said sealing components sit in said receiving pocket in said plastic casing.

### Claim 10 (depends on 7)

The electric motor according to claim 7, wherein:
said plastic casing having plug openings formed therein; and
said comparatively hard supporting component has least one plug pin engaging in a corresponding one of said plug openings in said plastic casing.

### Claim 11 (depends on 1)

The electric motor according to claim 1, wherein the electric motor is a radiator fan motor of a motor vehicle.

### Claim 12 (depends on 3)

The electric motor according to claim 3, wherein spacing pawls are molded into said peripheral sealing groove on an inner-side groove wall thereof facing said electronics compartment.

### Claim 13 (depends on 6)

The electric motor according to claim 6, wherein said sealing elements are formed of a two-component plastic.
