Patents by Inventor Peter WÜRFEL
Peter WÜRFEL has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Patent number: 11935680Abstract: A stator for an electric motor is provided, the stator comprising a hollow cylindrical stator yoke and comprising a stator star arranged within the stator yoke and including a plurality of radially outwardly extending stator teeth having tips contacting, in the assembled state, corresponding connection positions on the inner circumference of the stator yoke, wherein the stator yoke and the stator star are each formed by a laminated metal sheet pack, wherein the metal sheet pack of the stator star comprises sheet metal layers of stator sheets, closed in the circumferential direction, comprising stator teeth connected with each other via pole shoe bridges and sheet metal layers of individual stator teeth spaced with respect to each other in the circumferential direction. Each of the pole shoe bridges may have at least one material recess extending in the radial direction.Type: GrantFiled: October 13, 2021Date of Patent: March 19, 2024Assignee: Minebea Mitsumi Inc.Inventors: Karl-Heinz Glatz, Peter Würfel, Vladimir Popov, Mark Kempa, Peter Borsai
-
Publication number: 20220115174Abstract: A stator for an electric motor is provided, the stator comprising a hollow cylindrical stator yoke and comprising a stator star arranged within the stator yoke and including a plurality of radially outwardly extending stator teeth having tips contacting, in the assembled state, corresponding connection positions on the inner circumference of the stator yoke, wherein the stator yoke and the stator star are each formed by a laminated metal sheet pack, wherein the metal sheet pack of the stator star comprises sheet metal layers of stator sheets, closed in the circumferential direction, comprising stator teeth connected with each other via pole shoe bridges and sheet metal layers of individual stator teeth spaced with respect to each other in the circumferential direction. Each of the pole shoe bridges may have at least one material recess extending in the radial direction.Type: ApplicationFiled: October 13, 2021Publication date: April 14, 2022Inventors: Karl-Heinz GLATZ, Peter WÜRFEL, Vladimir POPOV, Mark KEMPA, Peter BORSAI
-
Patent number: 7015603Abstract: In order to construct a brushless electric motor comprising a housing, comprising a rotor and comprising a stator, each stator unit including pole shoes, formed as claw poles, as well as a coil positioned following the rotor in the direction of the rotor axis, by means of which the pole shoes can be magnetized, at the lowest possible cost and as simply as possible, it is proposed that the stator unit has two pole shoe elements of which a first pole shoe element has a first pole shoe carrier as well as first pole shoes formed integrally onto this carrier and of which a second pole shoe element has a second pole shoe carrier as well as the second pole shoes formed integrally onto this carrier and that a bearing support made of plastics is molded onto the second pole shoe carrier of the stator unit and is thereby secured to it.Type: GrantFiled: November 14, 2003Date of Patent: March 21, 2006Assignee: Minebea Co., Ltd.Inventors: Guenther Barrho, Peter Wuerfel
-
Patent number: 6965179Abstract: In order, in an electric motor having a housing including a housing sleeve and a housing cover disposed at the end of the housing sleeve, a rotor mounted rotatably about a rotor axis in the housing, a stator disposed in the housing and having a least one motor winding and having an electrical connection unit disposed on the housing, to lead a feed line to the motor winding in the most favorable way possible in terms of assembly, it is proposed that at least one feed line leading from the electrical connection unit to the motor winding runs within the housing sleeve.Type: GrantFiled: November 14, 2003Date of Patent: November 15, 2005Assignee: Minebea Co., Ltd.Inventors: Martin Willmer, Peter Wuerfel
-
Patent number: 6891289Abstract: In order to design an electric motor with a housing, with a rotor and with a stator, each stator unit including pole shoes, formed as claw poles, as well as a coil positioned following the rotor in the direction of the rotor axis, by means of which the pole shoes can be magnetized, at low cost, it is proposed that the stator unit has two pole shoe elements of which a first pole shoe element has a first pole shoe carrier as well as first pole shoes formed integrally onto this carrier and of which a second pole shoe element has a second pole shoe carrier as well as second pole shoes formed integrally onto this carrier, and that the first pole shoe carrier carries a connecting element which establishes a magnetic circuit between the pole shoe carriers and which is fixedly connected to at least the second pole shoe carrier.Type: GrantFiled: November 14, 2003Date of Patent: May 10, 2005Assignee: Minebea Co., Ltd.Inventors: Guenther Barrho, Peter Wuerfel
-
Publication number: 20040145269Abstract: In order to design an electric motor with a housing, with a rotor and with a stator, each stator unit including pole shoes, formed as claw poles, as well as a coil positioned following the rotor in the direction of the rotor axis, by means of which the pole shoes can be magnetized, at low cost, it is proposed that the stator unit has two pole shoe elements of which a first pole shoe element has a first pole shoe carrier as well as first pole shoes formed integrally onto this carrier and of which a second pole shoe element has a second pole shoe carrier as well as second pole shoes formed integrally onto this carrier, and that the first pole shoe carrier carries a connecting element which establishes a magnetic circuit between the pole shoe carriers and which is fixedly connected to at least the second pole shoe carrier.Type: ApplicationFiled: November 14, 2003Publication date: July 29, 2004Applicant: Minebea Co., Ltd.Inventors: Guenther Barrho, Peter Wuerfel
-
Publication number: 20040140730Abstract: In order to construct a brushless electric motor comprising a housing, comprising a rotor and comprising a stator, each stator unit including pole shoes, formed as claw poles, as well as a coil positioned following the rotor in the direction of the rotor axis, by means of which the pole shoes can be magnetized, at the lowest possible cost and as simply as possible, it is proposed that the stator unit has two pole shoe elements of which a first pole shoe element has a first pole shoe carrier as well as first pole shoes formed integrally onto this carrier and of which a second pole shoe element has a second pole shoe carrier as well as the second pole shoes formed integrally onto this carrier and that a bearing support made of plastics is molded onto the second pole shoe carrier of the stator unit and is thereby secured to it.Type: ApplicationFiled: November 14, 2003Publication date: July 22, 2004Applicant: Minebea Co., Ltd.Inventors: Guenther Barrho, Peter Wuerfel
-
Publication number: 20040141286Abstract: In order, in an electric motor having a housing including a housing sleeve and a housing cover disposed at the end of the housing sleeve, a rotor mounted rotatably about a rotor axis in the housing, a stator disposed in the housing and having a least one motor winding and having an electrical connection unit disposed on the housing, to lead a feed line to the motor winding in the most favorable way possible in terms of assembly, it is proposed that at least one feed line leading from the electrical connection unit to the motor winding runs within the housing sleeve.Type: ApplicationFiled: November 14, 2003Publication date: July 22, 2004Applicant: Minebea Co., Ltd.Inventors: Martin Willmer, Peter Wuerfel