Patents by Inventor Rutunj Rai
Rutunj Rai 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).
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Patent number: 9615490Abstract: A coldplate for use with an inverter of an electric vehicle includes a coldplate member. The coldplate member includes a pocket configured to receive a DC link capacitor of the inverter therein. The pocket is sized to surround the DC link capacitor when the DC link capacitor is received within the pocket to thereby provide physical integration of the DC link capacitor in the coldplate member.Type: GrantFiled: July 22, 2015Date of Patent: April 4, 2017Assignee: Lear CorporationInventors: John N. Topolewski, Michael Scott Duco, Parminder Brar, Rutunj Rai
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Publication number: 20160270258Abstract: An assembly includes a cold plate enclosure and a flow directing baffle separable from the cold plate enclosure. The cold plate enclosure includes a cavity therein, an inlet for coolant ingress into the cavity, and an outlet for coolant egress out of the cavity. The baffle is attached to the enclosure within the cavity. The baffle includes flow directing features such that the baffle directs coolant flow through the cavity from the inlet to the outlet in a prescribed manner.Type: ApplicationFiled: March 13, 2015Publication date: September 15, 2016Inventors: Rutunj Rai, Parminder Brar, Michael Scott Duco, Jared Pieknik
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Publication number: 20160254085Abstract: The present disclosure includes an electrical power transformer that may include a core and a conductor pack. A conductor pack may include a conducting layer disposed around a portion of the core, a first planar insulating layer disposed on a first side of the conducting layer, and a second planar insulating layer disposed on a second side of the conducting layer. A cooling member may be disposed adjacent to the conductor pack. A method of manufacturing an electrical power transformer may include providing a core and providing a plurality of planar conductor packs. The planar conductor packs including a plurality of planar conducting layers and a plurality of planar insulating layers. The method may include inserting a cooling member between insulating layers of adjacent ones of the plurality of planar conductor packs.Type: ApplicationFiled: April 8, 2015Publication date: September 1, 2016Inventors: Rutunj Rai, Venkat Rao Yalamanchili, Parminder Brar, Michael Scott Duco
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Patent number: 9362040Abstract: A coldplate for use in cooling electrical components may include first and second coldplate members, each having a pocket and a secondary portion. The pocket of each member is configured to receive an electrical component and sized to substantially surround the component when received in the pocket to provide physical integration of the component in the coldplate member. The first and second coldplate members are adapted to be joined together to form a manifold therebetween for receiving a fluid for use in cooling the electrical components. The secondary portion of each coldplate member is arranged substantially opposite the pocket of the other coldplate member when the coldplate members are joined together.Type: GrantFiled: May 28, 2014Date of Patent: June 7, 2016Assignee: Lear CorporationInventors: Rutunj Rai, Venkat Yalamanchili, Parminder Brar, Michael Duco
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Publication number: 20150334874Abstract: A coldplate for use in cooling electrical components may include first and second coldplate members, each having a pocket and a secondary portion. The pocket of each member is configured to receive an electrical component and sized to substantially surround the component when received in the pocket to provide physical integration of the component in the coldplate member. The first and second coldplate members are adapted to be joined together to form a manifold therebetween for receiving a fluid for use in cooling the electrical components. The secondary portion of each coldplate member is arranged substantially opposite the pocket of the other coldplate member when the coldplate members are joined together.Type: ApplicationFiled: May 28, 2014Publication date: November 19, 2015Applicant: Lear CorporationInventors: Rutunj Rai, Venkat Yalamanchili, Parminder Brar, Michael Duco
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Publication number: 20150334875Abstract: A coldplate for use with an inverter of an electric vehicle includes a coldplate member. The coldplate member includes a pocket configured to receive a DC link capacitor of the inverter therein. The pocket is sized to surround the DC link capacitor when the DC link capacitor is received within the pocket to thereby provide physical integration of the DC link capacitor in the coldplate member.Type: ApplicationFiled: July 22, 2015Publication date: November 19, 2015Inventors: John N. Topolewski, Michael Scott Duco, Parminder Brar, Rutunj Rai
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Patent number: 9035597Abstract: A charger assembly is provided with a housing having a cavity with an opening. A cover is fastened to the housing for covering the opening. A heat transfer duct is mounted to the cover with an inlet end and an outlet end each extending through the cover. A plurality of heat sinks is mounted to the cover in contact with the heat transfer duct. A plurality of circuit board assemblies are each mounted to the cover in contact with the plurality of heat sinks.Type: GrantFiled: November 30, 2011Date of Patent: May 19, 2015Assignee: Lear CorporationInventors: Nadir Sharaf, Slobodan Pavlovic, Rutunj Rai, Dilip Daftuar, Juan Lopez, Reshma Rathod
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Publication number: 20150036292Abstract: An electrical device is described for use in an automotive vehicle. The device includes a printed circuit board (PCB) having first and second sides. The PCB is adapted for multiple electronic components to be mounted to the first side, including a first component at a first position and a second component at a second position. The second component is capable of substantially blocking airflow directed substantially across the first side from at least one direction toward the first component. The PCB defines a plurality of apertures formed in a region of the PCB including the first position such that airflow directed substantially across the second side of the PCB flows through the apertures, under the first component at the first position on the first side of the PCB, and on a portion of the first side of the PCB beyond the region of the PCB including the first position.Type: ApplicationFiled: August 1, 2013Publication date: February 5, 2015Applicant: Lear CorporationInventors: Rutunj Rai, Krzysztof Klesyk, Arthur L. Richards
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Patent number: 8902582Abstract: A coldplate for use with a transformer in an electric vehicle (EV) or a hybrid-electric vehicle (HEV). The coldplate includes a main portion having a recess formed therein, the recess having a floor configured for contacting a bottom surface of a transformer for dissipating heat generated by the transformer. The main portion includes a raised feature configured for contacting a winding of the transformer for dissipating heat generated by the transformer. The coldplate also includes a bracket member for use in securing the transformer in the recess of the main portion, the bracket member configured for contacting the main portion and the transformer for dissipating heat generated by the transformer. The bracket member includes a contact surface for contacting a top surface of the transformer, the contact surface having an area sufficient to contact substantially all of the top surface of the transformer.Type: GrantFiled: May 22, 2012Date of Patent: December 2, 2014Assignee: Lear CorporationInventors: Venkat Yalamanchili, Rutunj Rai
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Patent number: 8897013Abstract: A housing or other enclosure used to facilitate fluid cooling of a circuitry of a battery charger, such as but not limited to a battery charger of the type used to facilitate charging a high voltage vehicle battery with AC energy provided from a utility power grid. The housing may include a groove and seal arrangement operable to seal a fluid coolant chamber used to cool the circuitry from leaking fluid during use.Type: GrantFiled: February 17, 2011Date of Patent: November 25, 2014Assignee: Lear CorporationInventors: Nadir Sharaf, John M. Van Dyke, Richard J. Hampo, Slobodan Pavlovic, Rutunj Rai, Reinhard Pusch
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Patent number: 8848375Abstract: An apparatus includes a base plate including a plurality of depressions, and a power electronics printed circuit board including a plurality traces and a plurality of high voltage components. The plurality of high voltage components is located at a plurality of locations corresponding to the plurality of depressions in the base plate. A plurality of fasteners secures the printed circuit board to the base plate with the plurality of high voltage components received at the corresponding plurality of depressions. A thermally conductive and electrically isolating interface between the base plate and the printed circuit board is made of a gap filler material conforming to the base plate and to the plurality of depressions in the base plate, and conforming to the printed circuit board and to the plurality of high voltage components.Type: GrantFiled: September 20, 2010Date of Patent: September 30, 2014Assignee: Lear CorporationInventors: Rutunj Rai, Richard Hampo, John Mills
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Patent number: 8743556Abstract: In at least one embodiment, a vehicle power module comprises a first printed circuit board (PCB) including a first plurality of electrical components for providing a first voltage and a second voltage. The vehicle power module further comprises a second PCB including a second plurality of electrical components, the second PCB being spaced away from the first printed circuit board and a first connector assembly being coupled to the first PCB and to the second PCB for providing the first voltage to the second PCB. The vehicle power module further comprises a second connector assembly being coupled to the first PCB and to the second PCB for providing the second voltage to the second PCB. The first connector assembly provides the first voltage of up to 14V and the second connector assembly provides the second voltage of 200V or greater.Type: GrantFiled: April 19, 2013Date of Patent: June 3, 2014Assignee: Lear CorporationInventors: Richard J. Hampo, Slobodan Pavlovic, Nadir Sharaf, Rutunj Rai, Aftab Ali Khan
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Patent number: 8625284Abstract: An automotive power converter may include a cold plate, a printed circuit board spaced away from the cold plate and including at least one heat generating electrical component attached thereto, and another printed circuit board disposed between the cold plate and the printed circuit board spaced away from the cold plate. The converter may further include at least one thermally conductive element configured to provide a thermally conductive path from the at least one heat generating electrical component to the cold plate. The at least one thermally conductive element may pass through the printed circuit boards.Type: GrantFiled: April 14, 2011Date of Patent: January 7, 2014Assignee: Lear CorporationInventors: Rutunj Rai, Nadir Sharaf
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Publication number: 20130312930Abstract: A coldplate for use with a transformer in an electric vehicle (EV) or a hybrid-electric vehicle (HEV). The coldplate includes a main portion having a recess formed therein, the recess having a floor configured for contacting a bottom surface of a transformer for dissipating heat generated by the transformer. The main portion includes a raised feature configured for contacting a winding of the transformer for dissipating heat generated by the transformer. The coldplate also includes a bracket member for use in securing the transformer in the recess of the main portion, the bracket member configured for contacting the main portion and the transformer for dissipating heat generated by the transformer. The bracket member includes a contact surface for contacting a top surface of the transformer, the contact surface having an area sufficient to contact substantially all of the top surface of the transformer.Type: ApplicationFiled: May 22, 2012Publication date: November 28, 2013Applicant: LEAR CORPORATIONInventors: Venkat Yalamanchili, Rutunj Rai
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Publication number: 20130230991Abstract: In at least one embodiment, a vehicle power module comprises a first printed circuit board (PCB) including a first plurality of electrical components for providing a first voltage and a second voltage. The vehicle power module further comprises a second PCB including a second plurality of electrical components, the second PCB being spaced away from the first printed circuit board and a first connector assembly being coupled to the first PCB and to the second PCB for providing the first voltage to the second PCB. The vehicle power module further comprises a second connector assembly being coupled to the first PCB and to the second PCB for providing the second voltage to the second PCB. The first connector assembly provides the first voltage of up to 14V and the second connector assembly provides the second voltage of 200V or greater.Type: ApplicationFiled: April 19, 2013Publication date: September 5, 2013Applicant: Lear CorporationInventors: Richard J. Hampo, Slobodan Pavlovic, Nadir Sharaf, Rutunj Rai, Aftab Ali Khan
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Publication number: 20130134925Abstract: A charger assembly is provided with a housing having a cavity with an opening. A cover is fastened to the housing for covering the opening. A heat transfer duct is mounted to the cover with an inlet end and an outlet end each extending through the cover. A plurality of heat sinks is mounted to the cover in contact with the heat transfer duct. A plurality of circuit board assemblies are each mounted to the cover in contact with the plurality of heat sinks.Type: ApplicationFiled: November 30, 2011Publication date: May 30, 2013Applicant: LEAR CORPORATIONInventors: Nadir Sharaf, Slobodan Pavlovic, Rutunj Rai, Dilip Daftuar, Juan Lopez, Reshma Rathod
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Patent number: 8446733Abstract: In at least one embodiment, a vehicle power module comprises a first printed circuit board (PCB) including a first plurality of electrical components for providing a first voltage and a second voltage. The vehicle power module further comprises a second PCB including a second plurality of electrical components, the second PCB being spaced away from the first printed circuit board and a first connector assembly being coupled to the first PCB and to the second PCB for providing the first voltage to the second PCB. The vehicle power module further comprises a second connector assembly being coupled to the first PCB and to the second PCB for providing the second voltage to the second PCB. The first connector assembly provides the first voltage of up to 14V and the second connector assembly provides the second voltage of 200V or greater.Type: GrantFiled: August 15, 2011Date of Patent: May 21, 2013Assignee: Lear CorporationInventors: Richard J. Hampo, Slobodan Pavlovic, Nadir Sharaf, Rutunj Rai, Aftab Ali Khan
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Publication number: 20120212175Abstract: A housing or other enclosure used to facilitate fluid cooling of a circuitry of a battery charger, such as but not limited to a battery charger of the type used to facilitate charging a high voltage vehicle battery with AC energy provided from a utility power grid. The housing may include a groove and seal arrangement operable to seal a fluid coolant chamber used to cool the circuitry from leaking fluid during use.Type: ApplicationFiled: February 17, 2011Publication date: August 23, 2012Applicant: LEAR CORPORATIONInventors: Nadir Sharaf, John M. Van Dyke, Richard J. Hampo, Slobodan Pavlovic, Rutunj Rai, Reinhard Pusch
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Publication number: 20120129362Abstract: In at least one embodiment, a vehicle power module comprises a first printed circuit board (PCB) including a first plurality of electrical components for providing a first voltage and a second voltage. The vehicle power module further comprises a second PCB including a second plurality of electrical components, the second PCB being spaced away from the first printed circuit board and a first connector assembly being coupled to the first PCB and to the second PCB for providing the first voltage to the second PCB. The vehicle power module further comprises a second connector assembly being coupled to the first PCB and to the second PCB for providing the second voltage to the second PCB. The first connector assembly provides the first voltage of up to 14V and the second connector assembly provides the second voltage of 200V or greater.Type: ApplicationFiled: August 15, 2011Publication date: May 24, 2012Applicant: LEAR CORPORATIONInventors: Richard J. Hampo, Slobodan Pavlovic, Nadir Sharaf, Rutunj Rai, Aftab Ali Khan
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Publication number: 20110292615Abstract: An automotive power converter may include a cold plate, a printed circuit board spaced away from the cold plate and including at least one heat generating electrical component attached thereto, and another printed circuit board disposed between the cold plate and the printed circuit board spaced away from the cold plate. The converter may further include at least one thermally conductive element configured to provide a thermally conductive path from the at least one heat generating electrical component to the cold plate. The at least one thermally conductive element may pass through the printed circuit boards.Type: ApplicationFiled: April 14, 2011Publication date: December 1, 2011Applicant: LEAR CORPORATIONInventors: Rutunj Rai, Nadir Sharaf