Patents by Inventor Taichi KOSHIJI
Taichi KOSHIJI 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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Publication number: 20240240840Abstract: An electric component unit of a refrigeration cycle apparatus, includes: a first electric board; a second electric board; a mounting member having a first surface on which the first electric board is disposed, and a second surface on which the second electric board is disposed; and an electric component casing having a maintenance opening. The mounting member is coupled to the electric component casing via a coupling portion. The electric component unit switches between a first state and a second state by rotation of the mounting member about the coupling portion. In the first state, the second electric board is accessible through the maintenance opening, and the first electric board, the second electric board, and the mounting member are all housed in the electric component casing. In the second state, the first electric board is accessible through the maintenance opening.Type: ApplicationFiled: March 28, 2024Publication date: July 18, 2024Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Daiki Hirawa, Katsutoshi Sakurai, Makoto Takayanagi, Taichi Koshiji, Hiroaki Matsuda
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Patent number: 11994352Abstract: A heat exchanger includes: a first heat transfer tube; a second heat transfer tube; and a branching tube having a first end connected to an end of the first heat transfer tube, a second end connected to an end of the second heat transfer tube, and a third end, and connecting the first end, the second end, and the third end to each other. The first heat transfer tube is larger in heat exchange quantity than the second heat transfer tube. The branching tube has a first flow path connecting the first end with the third end, and a second flow path connecting the second end with the third end. The first flow path is shorter than the second flow path. The branching tube includes: a U portion; and an inflow portion having an end connected to the U portion.Type: GrantFiled: July 17, 2023Date of Patent: May 28, 2024Assignee: DAIKIN INDUSTRIES, LTD.Inventors: Takehiro Naoi, Taichi Koshiji
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Publication number: 20240003555Abstract: An electric component unit in an outdoor unit of a refrigeration apparatus, includes: a first electric component; a first chamber that houses the first electric component; a second electric component; and a second chamber that houses the second electric component. The first chamber has a higher degree of hermetic sealing than the second chamber.Type: ApplicationFiled: September 14, 2023Publication date: January 4, 2024Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Daiki Hirawa, Katsutoshi Sakurai, Makoto Takayanagi, Taichi Koshiji, Hiroaki Matsuda
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Publication number: 20230400265Abstract: A heat exchanger includes: a first heat transfer tube; a second heat transfer tube; and a branching tube having a first end connected to an end of the first heat transfer tube, a second end connected to an end of the second heat transfer tube, and a third end, and connecting the first end, the second end, and the third end to each other. The first heat transfer tube is larger in heat exchange quantity than the second heat transfer tube. The branching tube has a first flow path connecting the first end with the third end, and a second flow path connecting the second end with the third end. The first flow path is shorter than the second flow path. The branching tube includes: a U portion; and an inflow portion having an end connected to the U portion.Type: ApplicationFiled: July 17, 2023Publication date: December 14, 2023Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Takehiro Naoi, Taichi Koshiji
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Patent number: 11493213Abstract: Provided is an outdoor unit for a refrigeration apparatus, the outdoor unit being capable of suppressing decrease in reliability. An outdoor unit (10) includes: a compressor (12); an outdoor fan (18) configured to provide outdoor air flows (AF), the outdoor fan (18) being higher in heightwise position than the compressor (12); a high-heat generating electric component (65) configured to control the compressor (12); a fan controlling electric component (66) configured to control the outdoor fan (18); a board unit (75) including a compressor controlling electric component mount portion (75a) and a fan controlling electric component mount portion (75b); a first cooling unit (80); and an outdoor unit casing (40). The outdoor air flows (AF) flow from below upward in the outdoor unit casing (40), and flow out of the outdoor unit casing (40) through a blow-out port (402).Type: GrantFiled: August 6, 2018Date of Patent: November 8, 2022Assignee: DAIKIN INDUSTRIES, LTD.Inventors: Miho Kurokawa, Shigeki Kamitani, Taichi Koshiji
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Patent number: 11391472Abstract: A heat exchange unit includes a heat exchanger, a structure supporting the heat exchanger, an insulating member electrically insulating the heat exchanger from the structure, a compressor electrically connected to the heat exchanger and the structure, and a connection member attached to the heat exchanger. The connection member electrically connects the heat exchanger and the structure. The connection member is provided separately from a first conductive path that electrically connects the compressor and the heat exchanger, and a second conductive path that electrically connects the compressor and the structure.Type: GrantFiled: December 11, 2020Date of Patent: July 19, 2022Assignee: Daikin Industries, Ltd.Inventors: Hiroshi Fuchikami, Makoto Takayanagi, Taichi Koshiji, Takahiro Matsui, Hirotaka Doi, Yoshitsugu Koyama, Yukio Akita
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Patent number: 11209175Abstract: An outdoor unit for a refrigeration apparatus includes: a casing that houses a plurality of devices including a first device and a second device; a plurality of electric components including a first electric component and a second electric component; an electric component box disposed in the casing and that houses the plurality of electric components; a first wire that carries a first voltage or current between the first electric component and the first device; a second wire that carries a second voltage or current between the second electric component and the second device; and a cover part that suppresses entry of liquid into the electric component box. The second voltage or current is lower than the first voltage or current.Type: GrantFiled: August 6, 2018Date of Patent: December 28, 2021Assignee: DAIKIN INDUSTRIES, LTD.Inventors: Miho Kurokawa, Shigeki Kamitani, Taichi Koshiji
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Publication number: 20210207894Abstract: An outdoor unit for a refrigeration apparatus includes: a fan that provides an air flow; a casing that houses the fan and that includes a blow-out port through which the air flow is blown; a first heat generating component that generates heat when being energized; a first board on which the first heat generating component is mounted; an electric component box that houses the first board; and a first cooler that cools the first heat generating component and that includes: a heat pipe in which a coolant is sealed and that is thermally connected to the first heat generating component; first heat radiating fins on a flow path of the air flow and that exchange heat with the air flow; and a main body interposed between the heat pipe and the first heat radiating fins to thermally connect the heat pipe to the first heat radiating fins.Type: ApplicationFiled: August 6, 2018Publication date: July 8, 2021Inventors: Miho KUROKAWA, Shigeki KAMITANI, Taichi KOSHIJI, Shougo OHTA, Hirotaka DOI
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Publication number: 20210095871Abstract: A heat exchange unit includes a heat exchanger, a structure supporting the heat exchanger, an insulating member electrically insulating the heat exchanger from the structure, a compressor electrically connected to the heat exchanger and the structure, and a connection member attached to the heat exchanger. The connection member electrically connects the heat exchanger and the structure. The connection member is provided separately from a first conductive path that electrically connects the compressor and the heat exchanger, and a second conductive path that electrically connects the compressor and the structure.Type: ApplicationFiled: December 11, 2020Publication date: April 1, 2021Inventors: Hiroshi FUCHIKAMI, Makoto TAKAYANAGI, Taichi KOSHIJI, Takahiro MATSUI, Hirotaka DOI, Yoshitsugu KOYAMA, Yukio AKITA
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Patent number: 10753640Abstract: A bottom frame (50) which constitutes a bottom surface of a casing (40) is divided into a main bottom frame (51) where a first compressor (11) is to be provided and a sub bottom frame (55) where a second compressor (21) is to be provided. The main bottom frame (51) is further divided into a first bottom frame (52) and a second bottom frame (53). The first compressor (11) is to be provided on the first bottom frame (52). A refrigerant circuit component (47) to be replaced or added in accordance with a capability or a function is to be provided on the second bottom frame (53).Type: GrantFiled: July 24, 2017Date of Patent: August 25, 2020Assignee: DAIKIN INDUSTRIES, LTD.Inventors: Fumiaki Koike, Shigeki Kamitani, Takuya Horita, Daiki Hirawa, Yuusuke Tanaka, Taichi Koshiji
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Publication number: 20200182491Abstract: Provided is an outdoor unit for a refrigeration apparatus, the outdoor unit being capable of suppressing decrease in reliability. An outdoor unit (10) includes: a compressor (12); an outdoor fan (18) configured to provide outdoor air flows (AF), the outdoor fan (18) being higher in heightwise position than the compressor (12); a high-heat generating electric component (65) configured to control the compressor (12); a fan controlling electric component (66) configured to control the outdoor fan (18); a board unit (75) including a compressor controlling electric component mount portion (75a) and a fan controlling electric component mount portion (75b); a first cooling unit (80); and an outdoor unit casing (40). The outdoor air flows (AF) flow from below upward in the outdoor unit casing (40), and flow out of the outdoor unit casing (40) through a blow-out port (402).Type: ApplicationFiled: August 6, 2018Publication date: June 11, 2020Inventors: Miho KUROKAWA, Shigeki KAMITANI, Taichi KOSHIJI
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Publication number: 20200158354Abstract: An outdoor unit for a refrigeration apparatus includes: a casing that houses a plurality of devices including a first device and a second device; a plurality of electric components including a first electric component and a second electric component; an electric component box disposed in the casing and that houses the plurality of electric components; a first wire that carries a first voltage or current between the first electric component and the first device; a second wire that carries a second voltage or current between the second electric component and the second device; and a cover part that suppresses entry of liquid into the electric component box. The second voltage or current is lower than the first voltage or current.Type: ApplicationFiled: August 6, 2018Publication date: May 21, 2020Inventors: Miho KUROKAWA, Shigeki KAMITANI, Taichi KOSHIJI
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Publication number: 20190338985Abstract: A bottom frame (50) which constitutes a bottom surface of a casing (40) is divided into a main bottom frame (51) where a first compressor (11) is to be provided and a sub bottom frame (55) where a second compressor (21) is to be provided. The main bottom frame (51) is further divided into a first bottom frame (52) and a second bottom frame (53). The first compressor (11) is to be provided on the first bottom frame (52). A refrigerant circuit component (47) to be replaced or added in accordance with a capability or a function is to be provided on the second bottom frame (53).Type: ApplicationFiled: July 24, 2017Publication date: November 7, 2019Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Fumiaki KOIKE, Shigeki KAMITANI, Takuya HORITA, Daiki HIRAWA, Yuusuke TANAKA, Taichi KOSHIJI