Patents by Inventor Ko Kajita
Ko Kajita 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: 11894734Abstract: Provided is a device for manufacturing a stator, the device including a winding jig configured to wind a coil and to manufacture a winding coil, and an insertion jig configured to receive the winding coil from the winding jig and to insert the winding coil into a stator core, wherein the winding jig comprises a body extending along a longitudinal direction (L1), a power supply unit configured to make the body revolve around a central shaft of the body, and a protrusion formed on a surface of the body.Type: GrantFiled: March 28, 2022Date of Patent: February 6, 2024Assignees: HYUNDAI MOBIS CO., LTD., HAYASHI KOGYOSYO Co., Ltd.Inventors: Yong Ho Kim, Min Mo Koo, Ko Kajita
-
Publication number: 20240022147Abstract: Provided is a device for manufacturing a stator, the device including a winding jig configured to wind a coil and to manufacture a winding coil, and an insertion jig configured to receive the winding coil from the winding jig and to insert the winding coil into a stator core, wherein the winding jig comprises a body extending along a longitudinal direction (L1), a power supply unit configured to make the body revolve around a central shaft of the body, and a protrusion formed on a surface of the body.Type: ApplicationFiled: September 26, 2023Publication date: January 18, 2024Applicants: HYUNDAI MOBIS CO., LTD., HAYASHI KOGYOSYO Co., Ltd.Inventors: Yong Ho KIM, Min Mo KOO, Ko KAJITA
-
Publication number: 20230155457Abstract: Discloses is a method of manufacturing a stator and a jig for manufacturing a stator. An exemplary embodiment of the present disclosure provides a method of manufacturing a stator, the method including a preparation step of preparing a coil material and a stator core having a plurality of slots provided in a circumferential direction C, a winding step of manufacturing a winding coil by winding the coil material, and an insertion step of positioning the winding coil in upper regions of at least some of the plurality of slots and then dropping the winding coil into the slot.Type: ApplicationFiled: November 15, 2022Publication date: May 18, 2023Applicants: HYUNDAI MOBIS Co., Ltd., HAYASHI KOGYOSYO Co., Ltd.Inventors: Yong Ho KIM, Ko KAJITA
-
Publication number: 20230155460Abstract: Provided is a device for manufacturing a stator, the device including a winding jig configured to wind a coil and to manufacture a winding coil, and an insertion jig configured to receive the winding coil from the winding jig and to insert the winding coil into a stator core, wherein the winding jig comprises a body extending along a longitudinal direction (L1), a power supply unit configured to make the body revolve around a central shaft of the body, and a protrusion formed on a surface of the body.Type: ApplicationFiled: March 28, 2022Publication date: May 18, 2023Applicants: HYUNDAI MOBIS CO., LTD., HAYASHI KOGYOSYO Co., Ltd.Inventors: Yong Ho KIM, Min Mo KOO, Ko KAJITA
-
Patent number: 11362561Abstract: A stator wherein the lead wire portion includes a root portion connected to the slot housed portion, disposed in a same-phase region which overlaps the coil end portion of the coil of a same phase as seen in the center axis direction, and disposed on an axially inner side with respect to the coil end portion, and a draw-out portion that projects in the center axis direction from a power source portion-side end portion of the root portion toward an axially outer side with respect to the coil end portion in the same-phase region.Type: GrantFiled: September 19, 2018Date of Patent: June 14, 2022Assignees: AISIN CORPORATION, HAYASHI KOGYOSYO CO., LTD.Inventors: Toru Kuroyanagi, Takahiko Hobo, Hiroo Hayashi, Ko Kajita
-
Patent number: 10998791Abstract: A stator of the present invention includes a conductor wire. A portion of the conductor wire disposed adjacent to a coil winding center is connected to a power supply. A portion of the conductor wire disposed outwardly away from the coil winding center is connected to a neutral point.Type: GrantFiled: December 22, 2016Date of Patent: May 4, 2021Assignees: AISIN AW CO., LTD., HAYASHIKOGYOSYO CO., LTD.Inventors: Toru Kuroyanagi, Ko Kajita, Takahiko Hobo
-
Patent number: 10998786Abstract: A stator that includes an annular stator core having a plurality of slots each having a coil insertion opening that opens in a radial direction, and recesses formed in circumferential side walls and extending in an axial direction; a coil including slot accommodated portions accommodated in the plurality of slots; and a wedge containing a thermoplastic resin and engaged with the recesses so as to close at least a part of the coil insertion opening as viewed in the radial direction of the stator core.Type: GrantFiled: September 22, 2017Date of Patent: May 4, 2021Assignees: AISIN AW CO., LTD., HAYASHIKOGYOSYO CO., LTD.Inventors: Toru Kuroyanagi, Ko Kajita, Takahiko Hobo
-
Patent number: 10811921Abstract: An insulating member that includes an insulating member body including a first insulating sheet provided in an annular shape to cover a coil that includes a slot-held section and a coil end section, the slot-held section configured to be held in a slot of a stator core, the coil end section configured to protrude from an end surface of the stator core in a rotation axis direction, wherein the first insulating sheet includes a folded-back section that is provided in a portion corresponding to a bent section of the coil and in the portion the first insulating sheet is folded back a plurality of times such that layers of the first insulating sheet are stacked.Type: GrantFiled: March 30, 2017Date of Patent: October 20, 2020Assignees: AISIN AW CO., LTD., HAYASHIKOGYOSYO CO., LTD.Inventors: Toru Kuroyanagi, Ko Kajita, Takahiko Hobo
-
Publication number: 20200220417Abstract: A stator wherein the lead wire portion includes a root portion connected to the slot housed portion, disposed in a same-phase region which overlaps the coil end portion of the coil of a same phase as seen in the center axis direction, and disposed on an axially inner side with respect to the coil end portion, and a draw-out portion that projects in the center axis direction from a power source portion-side end portion of the root portion toward an axially outer side with respect to the coil end portion in the same-phase region.Type: ApplicationFiled: September 19, 2018Publication date: July 9, 2020Applicants: AISIN AW CO., LTD., HAYASHIKOGYOSYO CO., LTD.Inventors: Toru KUROYANAGI, Takahiko HOBO, Hiroo HAYASHI, Ko KAJITA
-
Publication number: 20190393748Abstract: A stator that includes an annular stator core having a plurality of slots each having a coil insertion opening that opens in a radial direction, and recesses formed in circumferential side walls and extending in an axial direction; a coil including slot accommodated portions accommodated in the plurality of slots; and a wedge containing a thermoplastic resin and engaged with the recesses so as to close at least a part of the coil insertion opening as viewed in the radial direction of the stator core.Type: ApplicationFiled: September 22, 2017Publication date: December 26, 2019Applicants: AISIN AW CO., LTD., HAYASHIKOGYOSYO CO., LTD.Inventors: Toru KUROYANAGI, Ko KAJITA, Takahiko HOBO
-
Patent number: 10516312Abstract: A stator coil that includes a first coil portion including a pair of first slot-housed portions respectively arranged on an outer side of a first slot of the stator core in a radial direction and on an outer side of a second slot of the stator core in the radial direction; a second coil portion including a pair of second slot-housed portions respectively arranged on an inner side of the first slot in the radial direction and on an inner side of a third slot in the radial direction, the third slot being arranged across the first slot from the second slot in a circumferential direction; and a third coil portion including a pair of third slot-housed portions respectively arranged on an inner side and on an outer side in the radial direction.Type: GrantFiled: August 26, 2016Date of Patent: December 24, 2019Assignees: AISIN AW CO., LTD., HAYASHIKOGYOSYO CO., LTD.Inventors: Toru Kuroyanagi, Ko Kajita, Takahiko Hobo
-
Patent number: 10447125Abstract: The present invention was contrived through attention being focused on the following in a prior-art distributed-winding coil: a “solenoid” configuration in which winding wires are to be wound is preserved when initially formed, but this configuration tends to be loosened during subsequent steps, and the initial winding sequence of the winding wires, or the position of the winding wires relative to each other, tends to be disrupted, and accordingly must be prevented, when a certain force is applied and the necessary bending or deformation is induced in coils with distributed winding in which the solenoid configuration is preserved, or when the coils are ultimately inserted into slots.Type: GrantFiled: March 8, 2016Date of Patent: October 15, 2019Assignee: Hayashi Industry Co., LTD.Inventors: Ko Kajita, Takahiko Hobo
-
Publication number: 20190207459Abstract: An insulating member that includes an insulating member body including a first insulating sheet provided in an annular shape to cover a coil that includes a slot-held section and a coil end section, the slot-held section configured to be held in a slot of a stator core, the coil end section configured to protrude from an end surface of the stator core in a rotation axis direction, wherein the first insulating sheet includes a folded-back section that is provided in a portion corresponding to a bent section of the coil and in the portion the first insulating sheet is folded back a plurality of times such that layers of the first insulating sheet are stacked.Type: ApplicationFiled: March 30, 2017Publication date: July 4, 2019Applicants: AISIN AW CO., LTD., HAYASHIKOGYOSYO CO., LTD.Inventors: Toru KUROYANAGI, Ko KAJITA, Takahiko HOBO
-
Publication number: 20190006903Abstract: A stator of the present invention includes a conductor wire. A portion of the conductor wire disposed adjacent to a coil winding center is connected to a power supply. A portion of the conductor wire disposed outwardly away from the coil winding center is connected to a neutral point.Type: ApplicationFiled: December 22, 2016Publication date: January 3, 2019Applicants: AISIN AW CO., LTD., HAYASHIKOGYOSYO CO., LTD.Inventors: Toru KUROYANAGI, Ko KAJITA, Takahiko HOBO
-
Patent number: 10170963Abstract: In each coil (10), between a first radial section formed by a winding-start section (10a) and a second radial section formed by a winding-end section (10b) of a winding (10A), the circumferential lengths of the winding lap sections formed by said winding change in a continuous or stepped manner. For a first coil, the sequences within two slots (22) of the winding constituting the first coil are reversed with respect to one another by a twisted section (10d) between a first coil end (12a) and a second coil end (12b) of the first coil. The first coil and next second coil form a lap winding in which the twisted sections of the first and second coils are three-dimensionally entwined. The lap winding of said twisted sections continues for the third and subsequent coils, and the first coil end and the second coil end of each coil are continuous without spaces at the end surfaces of a core (20).Type: GrantFiled: March 2, 2016Date of Patent: January 1, 2019Assignee: HAYASHI INDUSTRY CO., LTD.Inventors: Ko Kajita, Takahiko Hobo
-
Publication number: 20180351427Abstract: This rotating electrical machine includes a coil. The coil includes a first coil portion formed of a single-layer lap winding coil arranged on radially outer sides of slots, a second coil portion continuously connected to a first connecting wire portion continuously connected to the first coil portion, and formed of a single-layer lap winding coil arranged on radially inner sides of the slots, and a third coil portion group including a plurality of third coil portions each formed of a double-layer lap winding coil.Type: ApplicationFiled: December 22, 2016Publication date: December 6, 2018Applicants: AISIN AW CO., LTD., HAYASHIKOGYOSYO CO., LTD.Inventors: Toru KUROYANAGI, Ko KAJITA, Takahiko HOBO
-
Publication number: 20180205277Abstract: A stator coil that includes a first coil portion including a pair of first slot-housed portions respectively arranged on an outer side of a first slot of the stator core in a radial direction and on an outer side of a second slot of the stator core in the radial direction; a second coil portion including a pair of second slot-housed portions respectively arranged on an inner side of the first slot in the radial direction and on an inner side of a third slot in the radial direction, the third slot being arranged across the first slot from the second slot in a circumferential direction; and a third coil portion including a pair of third slot-housed portions respectively arranged on an inner side and on an outer side in the radial direction.Type: ApplicationFiled: August 26, 2016Publication date: July 19, 2018Applicants: AISIN AW CO., LTD., HAYASHIKOGYOSYO CO., LTD.Inventors: Toru KUROYANAGI, Ko KAJITA, Takahiko HOBO
-
Publication number: 20180198353Abstract: A method for manufacturing a stator that includes attaching a coil portion to slots by pivoting the coil portion about a connecting wire in a state in which a plurality of the coil portions are connected together by the connecting wire for each phase, the coil portions including a first coil portion that includes one first slot-housed portion to be arranged on a radially inner side of a first slot of a stator core and the other first slot-housed portion to be arranged on a radially outer side of a second slot provided at a position spaced away from the first slot in a circumferential direction, the other first slot-housed portion being spaced away from the one first slot-housed portion in the circumferential direction.Type: ApplicationFiled: August 26, 2016Publication date: July 12, 2018Applicants: AISIN AW CO., LTD, HAYASHIKOGYOSYO CO., LTD.Inventors: Toru KUROYANAGI, Ko KAJITA, Takahiko HOBO
-
Publication number: 20180166957Abstract: The present invention was contrived through attention being focused on the following in a prior-art distributed-winding coil: a “solenoid” configuration in which winding wires are to be wound is preserved when initially formed, but this configuration tends to be loosened during subsequent steps, and the initial winding sequence of the winding wires, or the position of the winding wires relative to each other, tends to be disrupted, and accordingly must be prevented, when a certain force is applied and the necessary bending or deformation is induced in coils with distributed winding in which the solenoid configuration is preserved, or when the coils are ultimately inserted into slots.Type: ApplicationFiled: March 8, 2016Publication date: June 14, 2018Inventors: Ko Kajita, Takahiko Hobo
-
Publication number: 20180166955Abstract: In each coil (10), between a first radial section formed by a winding-start section (10a) and a second radial section formed by a winding-end section (10b) of a winding (10A), the circumferential lengths of the winding lap sections formed by said winding change in a continuous or stepped manner. For a first coil, the sequences within two slots (22) of the winding constituting the first coil are reversed with respect to one another by a twisted section (10d) between a first coil end (12a) and a second coil end (12b) of the first coil. The first coil and next second coil form a lap winding in which the twisted sections of the first and second coils are three-dimensionally entwined. The lap winding of said twisted sections continues for the third and subsequent coils, and the first coil end and the second coil end of each coil are continuous without spaces at the end surfaces of a core (20).Type: ApplicationFiled: March 2, 2016Publication date: June 14, 2018Inventors: Ko Kajita, Takahiko Hobo