# US 12,215,713 B2 · Electric-motor radiator fan of a motor vehicle > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,215,713 B2 - Document ID: US12215713B2 - Status: Granted - Kind: B2 - Application number: 17/631,942 - Filed: 2020-07-29 - Published: 2022-09-01 - Granted: 2025-02-04 - Earliest claimed: 2019-08-01 - Assignees: Brose Fahrzeugteile GmbH & Co. Kommanditgesellschaft, Wuerzburg - Applicants: Brose Fahrzeugteile SE & Co. Kommanditgesellschaft, Wuerzburg - Inventors: Bernd Maurer - Web page: https://patentgrep.com/patent/US12215713B2 ## CPC - F04D 29/5853: {heat insulation or conduction} - F04D 25/06: the pump being electrically driven (F04D25/08 takes precedence) - F04D 29/522: {especially adapted for elastic fluid pumps} - F04D 29/541: {Specially adapted for elastic fluid pumps (F04D29/56 takes precedence)} - F04D 29/545: {Ducts} - F04D 29/644: {especially adapted for elastic fluid pumps} - F05D 2240/15: Heat shield - F05D 2260/33: with a bayonet coupling - F04D: NON-POSITIVE-DISPLACEMENT PUMPS (engine fuel-injection pumps F02M; ion pumps H01J41/12; electrodynamic pumps H02K44/02) - F05D: INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS ## Abstract An electric-motor radiator fan of a motor vehicle has a fan shroud with a motor holder. An electric motor is inserted in the motor holder. A heat shield plate is arranged on the end side of the electric motor. The heat shield plate is placed onto a projection of the motor holder by way of a cut-out, and the heat shield plate is pivoted around the projection, which forms an axis of rotation, in such a way that the heat shield plate is forced at least in sections into at least one holding contour of the motor holder in a positive locking and/or friction-locking manner. ## Claims ### Claim 1 An electric-motor radiator fan of a motor vehicle, the radiator fan comprising: a fan shroud with a motor holder, said motor holder being formed with at least one holding contour and with an axially protruding projection; an electric motor inserted in said motor holder; and a heat protection plate arranged on an end side of said electric motor; said heat protection plate being formed with a cutout for placement on said axially protruding projection of said motor holder; and said heat protection plate, with said axially protruding projection in said cutout, being pivotable about an axis of rotation defined by said axially protruding projection and said axis of rotation being parallel to an axis of rotation of the electric-motor, to rotate said heat protection plate, at least in certain portions thereof, into said at least one holding contour of said motor holder with at least one of a form-fit or a force-fit. ### Claim 2 (depends on 1) The radiator fan according to claim 1, wherein said at least one of a form-fit or force-fit is a bayonet connection. ### Claim 3 (depends on 1) The radiator fan according to claim 1, wherein said heat protection plate is mechanically prestressed upon being rotated into said holding contour. ### Claim 4 (depends on 1) The radiator fan according to claim 1, wherein, after having been rotated into said holding contour, said heat protection plate is force-fittingly fixed on said motor support by a single screw connection. ### Claim 5 (depends on 1) The radiator fan according to claim 1, wherein said at least one holding contour is configured as a hook and is arranged on said motor support in a tangential orientation. ### Claim 6 (depends on 1) The radiator fan according to claim 1, wherein said at least one holding contour is formed with a ramp guide, and said ramp guide is configured such that, when said heat protection plate is rotated into said at least one holding contour, said heat protection plate slides, at least in certain portions, axially on said ramp guide to produce inner mechanical prestressing. ### Claim 7 (depends on 1) The radiator fan according to claim 1, wherein said heat protection plate is formed with at least one radially directed and axially angled lug. ### Claim 8 (depends on 7) The radiator fan according to claim 7, wherein said at least one lug has a radially projecting lug extension which, upon a rotation of said heat protection plate, said lug extension is rotated into said holding contour. ### Claim 9 (depends on 7) The radiator fan according to claim 7, wherein: said at least one lug is one of three circumferentially distributed lugs on said heat protection plate; a first lug of said three lugs is formed with said cutout; a second lug of said three lugs is formed with a screw opening for guiding through a fastening screw; and a third lug of said three lugs has a radial lug extension. ### Claim 10 A heat protection plate for a radiator fan having a fan shroud with a motor holder the motor holder being formed with at least one holding contour and with an axially protruding projection, and an electric motor inserted in the motor holder, wherein the heat protection plate: is configured to be arranged on an end side of the electric motor and is formed with a cutout to be placed on the axially protruding projection of the motor holder; and with the axially protruding projection being inserted in the cutout, being pivotable about an axis of rotation defined by the axially protruding projection and the axis of rotation being parallel to an axis of rotation of the electric-motor, to rotate the heat protection plate, at least in certain portions thereof, into the at least one holding contour of the motor holder with at least one of a form-fit or a force-fit.