# US 2014/0191598 A1 · Electric motor, in particular a radiator fan motor, and a contact > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0191598 A1 - Document ID: US20140191598A1 - Status: Published application - Kind: A1 - Application number: 14/206,307 - 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: GEORG WINHEIM; THOMAS ZIEGLER; STEFAN ZICK; JAN GWOZDZ; MAIK RUEMMLER - Web page: https://patentgrep.com/patent/US20140191598A1 ## CPC - H02K 11/0141: {Shields associated with casings, enclosures or brackets} - H01R 4/242: the contact members being plates having a single slot - H01R 4/2425: Flat plates, e.g. multi-layered flat plates - H01R 12/63: connecting to another shape cable - H01R 12/675: {with contacts having at least a slotted plate for penetration of cable insulation, e.g. insulation displacement contacts for round conductor flat cables} - H02K 3/50: Fastening of winding heads, equalising connectors, or connections thereto - H02K 11/00: Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection (casings, enclosures or supports H02K5/00) - H02K 11/33: Drive circuits, e.g. power electronics (H02K11/38 takes precedence) - H02K 5/225: {Terminal boxes or connection arrangements (specially adapted for submersible motors H02K5/132)} - H02K 2211/03: Machines characterised by circuit boards, e.g. pcb - H02K: DYNAMO-ELECTRIC MACHINES (dynamo-electric relays H01H53/00; conversion of DC or AC input power into surge output power {H03K3/53}) - H01R: ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS ## Abstract An electric motor, in particular a radiator fan motor of a motor vehicle, has a stator which is fitted with a rotating-field winding, and a rotor which is mounted such that it can rotate in relation to the stator. A converter electronics system is provided, wherein a number of contact elements for insulation-free or enamel-insulated connection contacts of at least one component of the converter electronics system and/or for enamel-insulated winding ends of the rotating-field winding are mounted on a printed circuit board. The contact elements are in the form of clamping contacts or insulation-displacement terminal contacts. ## Claims ### Claim 1 An electric motor, comprising: a stator having a rotating-field winding with enamel-insulated winding ends; a permanent-magnet rotor mounted such that said permanent-magnet rotor can rotate in relation to said stator; and a converter electronics system having: at least one component having insulation-free connection contacts or enamel-insulated connection contacts; a printed circuit board; and a number of contact elements for said insulation-free connection contacts or said enamel-insulated connection contacts of said at least one component and/or for said enamel-insulated winding ends of said rotating-field winding, said contact elements mounted on said printed circuit board and being in a form of clamping contacts or insulation-displacement contacts. ### Claim 2 (depends on 1) The electric motor according to claim 1, wherein: said number of contact elements are insulation-displacement contacts; and said at least one component is an interference-suppression inductor with said enamel-insulated connection contacts with which clamping contact is made in said insulation-displacement contacts. ### Claim 3 (depends on 1) The electric motor according to claim 1, wherein: said at least one component includes a plurality of charging capacitors connected in parallel and have said insulation-free connection contacts; and said converter electronics system has a pair of busbars with a number of clamping contacts corresponding to a number of said insulation-free connection contacts. ### Claim 4 (depends on 3) The electric motor according to claim 3, wherein: said pair of busbars have corresponding insertion points; and said printed circuit board has a number of insertion slots formed therein and/or insertion holes formed therein into which said pair of busbars are inserted by way of said corresponding insertion points. ### Claim 5 (depends on 4) The electric motor according to claim 4, wherein at least one of said insertion points, which corresponds to one of said insertion holes, of at least one busbar of said pair of busbars is in a form of a press-in pin. ### Claim 6 (depends on 3) The electric motor according to claim 3, wherein one of said two busbars of said pair of busbars has a number of recesses formed therein and corresponding to a number of said charging capacitors, said insulation-free connection contacts of said charging capacitors, with which connection contact clamping contact is made by said other busbar, being guided by means of said recesses without contact. ### Claim 7 (depends on 4) The electric motor according to claim 4, wherein said printed circuit board has a number of slot-shaped recesses formed therein, which run parallel to said busbars, said slot-shaped recesses are formed between said insertion slots or said insertion holes which are associated with said two busbars of said pair of busbars. ### Claim 8 (depends on 1) The electric motor according to claim 1, wherein said contact elements are insulation-displacement contacts having a contact base and two insulation-displacement limbs defining an insulation-displacement gap between said two insulation-displacement limbs, said insulation-displacement gap extends in an insulation-displacement direction from an insertion zone to said contact base and said insulation-displacement limbs each having a pre-cutting zone which adjoins the insertion zone and has a, sharp-edged, cutting edge. ### Claim 9 (depends on 8) The electric motor according to claim 8, wherein said contact elements each having an obliquely running, abrasion zone with an obliquely running, abrasion edge for said enamel-insulation connection contacts and adjoins said pre-cutting zone of said insulation-displacement gap in the insulation-displacement direction. ### Claim 10 (depends on 8) The electric motor according to claim 8, wherein said insulation-displacement gap has a rounded, clamping zone, which expediently adjoins the abrasion zone and has a rounded edge, for slowly increasing a clamping force in the insulation-displacement direction. ### 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 An insulation-displacement contact, comprising: a contact base; and two insulation-displacement limbs defining an insulation-displacement gap disposed between said two insulation-displacement limbs and extending in an insulation-displacement direction from an insertion zone to said contact base, said two insulation-displacement limbs having a pre-cutting zone adjoining the insertion zone and having a sharp-edged, cutting edge. ### Claim 13 (depends on 11) The insulation-displacement contact according to claim 11, wherein said two insulation-displacement limbs define an abrasion zone which adjoins said pre-cutting zone in the insulation-displacement direction and has an obliquely running, abrasion edge within said insulation-displacement gap for an enamel-insulated connection contact or solid wire, and/or having a clamping zone which adjoins the abrasion zone in the insulation-displacement direction and has a round edge for slowly increasing a clamping force within said insulation-displacement gap.