Patents by Inventor Jouni Ikäheimo
Jouni Ikäheimo 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).
-
Publication number: 20240271892Abstract: A first temperature value indicating a temperature near a heat source, a second temperature value indicating a temperature near an outer end of a cooling rib extending from the heat source, and a third temperature value indicating an ambient temperature in the location of the heat source are used to determine fouling status.Type: ApplicationFiled: February 13, 2024Publication date: August 15, 2024Inventors: Alex Danci, Jouni Ikäheimo
-
Publication number: 20240204567Abstract: An electric apparatus of an electric machine including a transformer, a primary coil of the transformer receiving electric energy from a harvesting electric circuit located within an electric machine and a secondary coil of the transformer receiving electric energy of the harvested electric energy from the primary coil inductively. The secondary coil outputs the received electric energy for a battery charger of a monitoring system of the electric machine.Type: ApplicationFiled: December 12, 2023Publication date: June 20, 2024Inventors: Alex Danci, Jouni Ikäheimo
-
Publication number: 20240162774Abstract: A stator for an electric machine including a stator core including an outer shell, a plurality of stator teeth and a plurality of stator slots, wherein the plurality of stator slots is adapted to receive a stator winding of the electric machine; at least one auxiliary coil located adjacent to the stator core, and adapted to generate an auxiliary coil voltage during operation of the electric machine. The at least one auxiliary coil is located around at least a portion of one of the plurality of stator teeth such that said at least a portion of one of the plurality of stator teeth extends inside the at least one auxiliary coil.Type: ApplicationFiled: November 9, 2023Publication date: May 16, 2024Inventors: Alex Danci, Jouni Ikäheimo
-
Patent number: 10790715Abstract: An end structure for a rotor of an electric machine is attachable to an end of the rotor. The end structure includes a ring arrangement, a rotational axis of which is parallel to that of the stacked rotor, and at least one reinforcing structure at least partly within the ring arrangement. A value of a tensile strength of the at least one reinforcing structure is higher than that of the ring arrangement.Type: GrantFiled: July 1, 2016Date of Patent: September 29, 2020Assignee: ABB Schweiz AGInventors: Jere Kolehmainen, Jouni Ikäheimo, Tero Känsäkangas
-
Patent number: 10707722Abstract: A protection arrangement of an electric machine which includes a plurality of solid elements layered one after another between a terminal box and a stator of the electric machine. Each of the solid elements includes a cable hole, and the cable holes are arranged to at least partially overlap with each other in order to have a cable channel of the successive cable holes through the solid elements. At least a part of the solid elements are adjustable in a radial direction of the cable channel for making a diameter of the cable channel equal to or smaller than a diameter of the electric cable input in the cable channel in response to adjustment in the radial direction. The protection arrangement comprises a locking mechanism which immobilizes the at least part of solid elements.Type: GrantFiled: November 11, 2019Date of Patent: July 7, 2020Assignee: ABB Schweiz AGInventors: Jouni Ikäheimo, Tero Känsäkangas
-
Patent number: 10686343Abstract: A stack of a rotor comprises a plurality of stack elements which include material of first magnetic conductance. The rotor includes sectorial sections distributed round a rotational axis of the rotor. Each of the stack elements has an aperture of second magnetic conductance in each of the sectorial sections. Outer ends of the apertures are located at a rim of the stack elements or at a bridge of the rim. The apertures form channels through the stack in a direction of a rotational axis of the rotor. At least two of the apertures of a common channel of the channels have the outer ends at different radial distances from the rotational axis of the rotor.Type: GrantFiled: July 1, 2016Date of Patent: June 16, 2020Assignee: ABB Schweiz AGInventors: Jouni Ikäheimo, Tero Känsäkangas, Jere Kolehmainen
-
Patent number: 10601267Abstract: The invention relates to a rotor for a synchronous reluctance electric machine. It includes a stack of consecutive magnetically conductive core elements; each core element includes at least two adjacent sectorial sections with flux barriers and a central area surrounding the rotational axis. A binding structure includes core end plates which form together with interconnection casts a unitary casted structure. The interconnection casts are casted into channels extending through the stack and which are located in an area defined by the flux barriers of the adjacent sectorial sections and the central area of each core element.Type: GrantFiled: January 2, 2019Date of Patent: March 24, 2020Assignee: ABB Schweiz AGInventors: Jere Kolehmainen, Jouni Ikäheimo, Kari Heikfolk, Tero Känsäkangas
-
Publication number: 20200076269Abstract: A protection arrangement of an electric machine which includes a plurality of solid elements layered one after another between a terminal box and a stator of the electric machine. Each of the solid elements includes a cable hole, and the cable holes are arranged to at least partially overlap with each other in order to have a cable channel of the successive cable holes through the solid elements. At least a part of the solid elements are adjustable in a radial direction of the cable channel for making a diameter of the cable channel equal to or smaller than a diameter of the electric cable input in the cable channel in response to adjustment in the radial direction. The protection arrangement comprises a locking mechanism which immobilizes the at least part of solid elements.Type: ApplicationFiled: November 11, 2019Publication date: March 5, 2020Inventors: Jouni Ikäheimo, Tero Känsäkangas
-
Publication number: 20190348880Abstract: An end structure for a rotor of an electric machine is attachable to an end of the rotor. The end structure includes a ring arrangement, a rotational axis of which is parallel to that of the stacked rotor, and at least one reinforcing structure at least partly within the ring arrangement. A value of a tensile strength of the at least one reinforcing structure is higher than that of the ring arrangement.Type: ApplicationFiled: July 1, 2016Publication date: November 14, 2019Inventors: Jere Kolehmainen, Jouni Ikäheimo, Tero Känsäkangas
-
Publication number: 20190157925Abstract: The invention relates to a rotor for a synchronous reluctance electric machine. It includes a stack of consecutive magnetically conductive core elements; each core element includes at least two adjacent sectorial sections with flux barriers and a central area surrounding the rotational axis. A binding structure includes core end plates which form together with interconnection casts a unitary casted structure. The interconnection casts are casted into channels extending through the stack and which are located in an area defined by the flux barriers of the adjacent sectorial sections and the central area of each core element.Type: ApplicationFiled: January 2, 2019Publication date: May 23, 2019Inventors: Jere Kolehmainen, Jouni Ikäheimo, Kari Heikfolk, Tero Känsäkangas
-
Patent number: 9755465Abstract: The present disclosure relates to rotating electric machines which may be used for industrial applications, to a method for manufacturing a rotor of a synchronous reluctance motor, a rotor of a synchronous reluctance motor, and a synchronous reluctance motor. A rotor of a synchronous reluctance motor according to the present disclosure has a cylindrical rotor body part casted from a superparamagnetic material, and ferromagnetic flux guides arranged inside the casted cylindrical rotor body part. The flux guides are arranged to go through from one side of the outer circumference of the cylindrical rotor part to the other side of the outer circumference of the cylindrical rotor part in the direction of the direct axis of the synchronous reluctance motor.Type: GrantFiled: October 2, 2014Date of Patent: September 5, 2017Assignee: ABB Schweiz AGInventors: Jouni Ikäheimo, Jere Kolehmainen
-
Publication number: 20150022033Abstract: The present disclosure relates to rotating electric machines which may be used for industrial applications, to a method for manufacturing a rotor of a synchronous reluctance motor, a rotor of a synchronous reluctance motor, and a synchronous reluctance motor. A rotor of a synchronous reluctance motor according to the present disclosure has a cylindrical rotor body part casted from a superparamagnetic material, and ferromagnetic flux guides arranged inside the casted cylindrical rotor body part. The flux guides are arranged to go through from one side of the outer circumference of the cylindrical rotor part to the other side of the outer circumference of the cylindrical rotor part in the direction of the direct axis of the synchronous reluctance motor.Type: ApplicationFiled: October 2, 2014Publication date: January 22, 2015Inventors: Jouni Ikäheimo, Jere Kolehmainen
-
Patent number: 8901799Abstract: A rotor disk for an electric motor including a shaft hole for receiving a shaft of the electric motor, a set of positioning holes around the shaft hole, each configured to receive a positioning pin. The shaft hole and the set of positioning holes are positioned in the rotor disk such that when the rotor disk is set to a rotated position with respect to another similar rotor disk, and the shaft and the positioning pins are penetrated to the respective holes of the two rotor disks, the disks cause a pressing force to the shaft.Type: GrantFiled: May 22, 2012Date of Patent: December 2, 2014Assignee: ABB Technology AGInventors: Jouni Ikäheimo, Jere Kolehmainen
-
Patent number: 8664810Abstract: An exemplary stator disk of an electric motor stator includes a set of recesses. Each recess being configured to receive a cooling pipe. The stator disk includes one or more positioning elements for aligning the stator disk with another stator disk. The one or more positioning elements being positioned to the stator disk such that when the stator disk is set to a rotated position with respect to the other stator disk in order to align the recesses of the disks for receiving of cooling pipes, the positioning elements of the two disks become only partly aligned with each other.Type: GrantFiled: May 22, 2012Date of Patent: March 4, 2014Assignee: ABB OyInventors: Jari Jäppinen, Jouni Ikäheimo, Jari Pekola
-
Publication number: 20130134808Abstract: An exemplary stator disk of an electric motor stator includes a set of recesses. Each recess being configured to receive a cooling pipe. The stator disk includes one or more positioning elements for aligning the stator disk with another stator disk. The one or more positioning elements being positioned to the stator disk such that when the stator disk is set to a rotated position with respect to the other stator disk in order to align the recesses of the disks for receiving of cooling pipes, the positioning elements of the two disks become only partly aligned with each other.Type: ApplicationFiled: May 22, 2012Publication date: May 30, 2013Applicant: ABB OyInventors: Jari Jäppinen, Jouni Ikäheimo, Jari Pekola
-
Publication number: 20120293038Abstract: A rotor disk for an electric motor including a shaft hole for receiving a shaft of the electric motor, a set of positioning holes around the shaft hole, each configured to receive a positioning pin. The shaft hole and the set of positioning holes are positioned in the rotor disk such that when the rotor disk is set to a rotated position with respect to another similar rotor disk, and the shaft and the positioning pins are penetrated to the respective holes of the two rotor disks, the disks cause a pressing force to the shaft.Type: ApplicationFiled: May 22, 2012Publication date: November 22, 2012Applicant: ABB OyInventors: Jouni IKÄHEIMO, Jere KOLEHMAINEN
-
Patent number: 8134261Abstract: A cooling arrangement is disclosed for an electrical machine in which the main cooling air circulation within the machine is arranged using a centrifugal blower in at least one of the ends of the machine, making the main cooling air circulation flow through at least an air space in the machine and the outer surface of the stator. A circulating fan is arranged in the immediate vicinity of the centrifugal fan for the purpose of generating a coil end circulation that circulates air at least in the area of the machine's coil ends.Type: GrantFiled: July 13, 2007Date of Patent: March 13, 2012Assignee: ABB OyInventors: Jouni Ikäheimo, Jere Kolehmainen, Jari Pekola, Tommi Ryyppö
-
Publication number: 20100133933Abstract: A cooling arrangement is disclosed for an electrical machine in which the main cooling air circulation within the machine is arranged using a centrifugal blower in at least one of the ends of the machine, making the main cooling air circulation flow through at least an air space in the machine and the outer surface of the stator. A circulating fan is arranged in the immediate vicinity of the centrifugal fan for the purpose of generating a coil end circulation that circulates air at least in the area of the machine's coil ends.Type: ApplicationFiled: July 13, 2007Publication date: June 3, 2010Applicant: ABB OYInventors: Jouni Ikäheimo, Jere Kolehmainen, Jari Pekola, Tommi Ryyppö
-
Patent number: 6555984Abstract: A system having an electric machine, memory device for storing information concerning the electric machine and is attached to the electric machine, and at least one control unit for controlling the operation of the electric machine. Furthermore, the system of the present invention has an interface between the memory device and the at least one control unit so that the at least one control unit reads the information stored in the memory device. The control unit processes the information read from the memory device such that the information becomes verified with default parameters of the system after read-out-thereof. In case the information includes parameters, which do not match in a predefined manner with the default parameters, the control unit is arranged to either automatically, adjust the system in accordance with the information received from the memory device or to prevent start-up of the electric machine or the entire system.Type: GrantFiled: February 23, 2001Date of Patent: April 29, 2003Assignee: ABB OyInventors: Erkki Rajala, Erkki Leskelä, Arto Makkonen, Jouni Ikäheimo