Patents by Inventor Junya KAIDA
Junya KAIDA 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: 11611265Abstract: An electric compressor includes a compression part, an electric motor, an inverter device, and a housing. The inverter device includes an inverter circuit, a noise reduction unit, and a circuit board. The noise reduction unit includes a common mode choke coil and a smoothing capacitor. The common mode choke coil includes an annular core, a pair of winding wires, and an annular electrical conductor. The electrical conductor is split into a first metal plate and a second metal plate in a circumferential direction. The first metal plate is thermally coupled to the housing. The second metal plate is electrically connected to the first metal plate. An electrical resistance value of the first metal plate is larger than that of the second metal plate.Type: GrantFiled: April 6, 2021Date of Patent: March 21, 2023Assignee: KABUSHIKI KAISHA TOYOTA JIDOSHOKKIInventors: Kouki Yamamoto, Mikio Yoshida, Kenji Hayakawa, Takuya Sagawa, Yusuke Kinoshita, Shunsuke Ambo, Junya Kaida
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Patent number: 11519400Abstract: An in-vehicle motor-driven compressor includes a common mode choke coil including an annular core having a through-hole, a first winding and a second winding wound around the core, and an annular conductor. The second winding is opposed to the first winding while being spaced apart from the first winding. The conductor surrounds the first and second windings, and the core. The conductor includes sections opposed to each other with the through-hole in between. The core is symmetrical with respect to at least one symmetry axis when the through-hole is viewed from the front. The first winding is located on one side of the at least one symmetry axis, and the second winding is located on the other side of the symmetry axis, so that the at least one symmetry axis is located between the first and second windings. The core includes an exposed section not covered with the conductor.Type: GrantFiled: September 11, 2020Date of Patent: December 6, 2022Assignee: KABUSHIKI KAISHA TOYOTA JIDOSHOKKIInventors: Hiroshi Fukasaku, Yoshiki Nagata, Takashi Kawashima, Shunsuke Ambo, Junya Kaida
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Patent number: 11482962Abstract: An on-vehicle motor-driven compressor includes an inverter device having a noise reducer. The noise reducer includes a common mode choke coil. The common mode choke coil includes an annular core, first and second windings wound around the core, the second winding being spaced apart from and opposed to the first winding, an annular conductor that extends over the first winding and the second winding and covers the core, and an insulating layer located between an inner circumferential surface of the conductor and outer surfaces of the first winding and the second winding. The conductor is tubular and belt-shaped. The core includes an exposed portion that is not covered by the conductor. The insulating layer is tubular and belt-shaped. An entirety of the conductor is arranged within a range between opposite ends of the insulating layer.Type: GrantFiled: September 22, 2020Date of Patent: October 25, 2022Assignee: KABUSHIKI KAISHA TOYOTA JIDOSHOKKIInventors: Yoshiki Nagata, Hiroshi Fukasaku, Takashi Kawashima, Shunsuke Ambo, Junya Kaida
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Patent number: 11437181Abstract: A metal film includes portions that are opposed to each other and located away from each other between the first winding and the second winding. The metal film includes the first linear part that is thermally coupled to a housing. The average value of electric resistance per unit length in the peripheral direction of the first linear part of the metal film is greater than an average value of electric resistance per unit length of locations other than the first linear part.Type: GrantFiled: March 25, 2020Date of Patent: September 6, 2022Assignee: KABUSHIKI KAISHA TOYOTA JIDOSHOKKIInventors: Hiroshi Fukasaku, Shunsuke Ambo, Junya Kaida, Yoshiki Nagata, Takashi Kawashima, Kenji Hayakawa, Yoshikazu Hayashi, Atsushi Naito
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Publication number: 20210320566Abstract: An electric compressor includes a compression part, an electric motor, an inverter device, and a housing. The inverter device includes an inverter circuit, a noise reduction unit, and a circuit board. The noise reduction unit includes a common mode choke coil and a smoothing capacitor. The common mode choke coil includes an annular core, a pair of winding wires, and an annular electrical conductor. The electrical conductor is split into a first metal plate and a second metal plate in a circumferential direction. The first metal plate is thermally coupled to the housing. The second metal plate is electrically connected to the first metal plate. An electrical resistance value of the first metal plate is larger than that of the second metal plate.Type: ApplicationFiled: April 6, 2021Publication date: October 14, 2021Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKIInventors: Kouki YAMAMOTO, Mikio YOSHIDA, Kenji HAYAKAWA, Takuya SAGAWA, Yusuke KINOSHITA, Shunsuke AMBO, Junya KAIDA
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Publication number: 20210091699Abstract: An on-vehicle motor-driven compressor includes an inverter device having a noise reducer. The noise reducer includes a common mode choke coil. The common mode choke coil includes an annular core, first and second windings wound around the core, the second winding being spaced apart from and opposed to the first winding, an annular conductor that extends over the first winding and the second winding and covers the core, and an insulating layer located between an inner circumferential surface of the conductor and outer surfaces of the first winding and the second winding. The conductor is tubular and belt-shaped. The core includes an exposed portion that is not covered by the conductor. The insulating layer is tubular and belt-shaped. An entirety of the conductor is arranged within a range between opposite ends of the insulating layer.Type: ApplicationFiled: September 22, 2020Publication date: March 25, 2021Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKIInventors: Yoshiki NAGATA, Hiroshi FUKASAKU, Takashi KAWASHIMA, Shunsuke AMBO, Junya KAIDA
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Publication number: 20210088038Abstract: An in-vehicle motor-driven compressor includes a common mode choke coil including an annular core having a through-hole, a first winding and a second winding wound around the core, and an annular conductor. The second winding is opposed to the first winding while being spaced apart from the first winding. The conductor surrounds the first and second windings, and the core. The conductor includes sections opposed to each other with the through-hole in between. The core is symmetrical with respect to at least one symmetry axis when the through-hole is viewed from the front. The first winding is located on one side of the at least one symmetry axis, and the second winding is located on the other side of the symmetry axis, so that the at least one symmetry axis is located between the first and second windings. The core includes an exposed section not covered with the conductor.Type: ApplicationFiled: September 11, 2020Publication date: March 25, 2021Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKIInventors: Hiroshi FUKASAKU, Yoshiki NAGATA, Takashi KAWASHIMA, Shunsuke AMBO, Junya KAIDA
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Publication number: 20210090776Abstract: An in-vehicle motor-driven compressor includes a common mode choke coil. The common mode choke coil includes an annular core having a through-hole, a first winding and a second winding wound around the core, and a coated conductive wire. The second winding is opposed to the first winding while being spaced apart from the first winding. The coated conductive wire is wound around the core so as to surround the first winding, the second winding, and the core. The coated conductive wire has sections that are opposed to each other with the through-hole in between. An electric wire of the coated conductive wire is wound multiple turns around the core so as to at least partly overlap with the first and second windings. Both ends of the electric wire are electrically connected to each other. The core includes an exposed section that is not covered with the coated conductive wire.Type: ApplicationFiled: September 11, 2020Publication date: March 25, 2021Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKIInventors: Hiroshi FUKASAKU, Yoshiki NAGATA, Junya KAIDA, Shunsuke AMBO, Takashi KAWASHIMA
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Patent number: 10897183Abstract: An on-vehicle motor-driven compressor includes a compression unit, an electric motor, and an inverter device. The inverter device includes an inverter circuit and a noise reducer. The noise reducer includes a common-mode choke coil and a smoothing capacitor. The common-mode choke coil includes a loop-shaped core, a first winding wound around the core, a second winding wound around the core, the second winding being spaced apart from and opposed to the first winding, and a loop-shaped conductor that covers the core while extending over the first winding and the second winding. The core includes an exposed portion that is not covered with the conductor. Parts of the conductor that are opposed to each other between the first winding and the second winding are spaced apart from each other.Type: GrantFiled: March 27, 2019Date of Patent: January 19, 2021Assignee: KABUSHIKI KAISHA TOYOTA JIDOSHOKKIInventors: Shunsuke Ambo, Fumihiro Kagawa, Hiroshi Fukasaku, Yoshiki Nagata, Junya Kaida, Takashi Kawashima, Yoshikazu Hayashi, Hidehiro Kudo, Takahiro Okazaki, Takashi Yoshida
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Publication number: 20200312532Abstract: A metal film includes portions that are opposed to each other and located away from each other between the first winding and the second winding. The metal film includes the first linear part that is thermally coupled to a housing. The average value of electric resistance per unit length in the peripheral direction of the first linear part of the metal film is greater than an average value of electric resistance per unit length of locations other than the first linear part.Type: ApplicationFiled: March 25, 2020Publication date: October 1, 2020Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKIInventors: Hiroshi FUKASAKU, Shunsuke AMBO, Junya KAIDA, Yoshiki NAGATA, Takashi KAWASHIMA, Kenji HAYAKAWA, Yoshikazu HAYASHI, Atsushi NAITO
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Publication number: 20190305648Abstract: An on-vehicle motor-driven compressor includes a compression unit, an electric motor, and an inverter device. The inverter device includes an inverter circuit and a noise reducer. The noise reducer includes a common-mode choke coil and a smoothing capacitor. The common-mode choke coil includes a loop-shaped core, a first winding wound around the core, a second winding wound around the core, the second winding being spaced apart from and opposed to the first winding, and a loop-shaped conductor that covers the core while extending over the first winding and the second winding. The core includes an exposed portion that is not covered with the conductor. Parts of the conductor that are opposed to each other between the first winding and the second winding are spaced apart from each other.Type: ApplicationFiled: March 27, 2019Publication date: October 3, 2019Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKIInventors: Shunsuke AMBO, Fumihiro KAGAWA, Hiroshi FUKASAKU, Yoshiki NAGATA, Junya KAIDA, Takashi KAWASHIMA, Yoshikazu HAYASHI, Hidehiro KUDO, Takahiro OKAZAKI, Takashi YOSHIDA