Patents by Inventor Sachio KAWADA
Sachio KAWADA 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: 12051960Abstract: A rotating electrical machine case includes a case body having a cylindrical shape surrounding a rotating electrical machine and a side wall portion provided on at least one end side of the case body in a rotation axis direction. The side wall portion is provided with a plurality of ribs extending in a radial direction when viewed from the rotation axis direction of a rotating electrical machine and the plurality of ribs include ribs having different circumferential widths.Type: GrantFiled: June 29, 2020Date of Patent: July 30, 2024Assignees: HONDA MOTOR CO., LTD., HITACHI ASTEMO, LTD.Inventors: Atsushi Nishida, Keiichiro Kashiwabara, Akira Fujiwara, Sachio Kawada, Hideaki Noto, Shunsuke Isogai
-
Patent number: 11502581Abstract: Disclosed is a motor unit that includes: a rotary electrical machine that has a cylindrical stator, a rotor disposed coaxially with the stator, a shaft disposed coaxially with the rotor, and a cylindrical case that houses the stator and the rotor; and a drive unit that has a swell swelling toward the case and is fixed to a circumferential surface that is located in a radial direction of the rotor and is the case. The case has a recess that corresponds to the swell.Type: GrantFiled: March 10, 2020Date of Patent: November 15, 2022Assignees: HONDA MOTOR CO., LTD., Hitachi Automotive Systems, Ltd.Inventors: Manabu Yazaki, Keiichiro Kashiwabara, Tomoyuki Suzuki, Heisuke Kobayashi, Takeshi Hoshinoya, Sachio Kawada, Akira Fujiwara, Yasuyuki Saito, Hiroshi Hamano, Tsuyoshi Harada
-
Publication number: 20220247253Abstract: A rotating electrical machine case includes a case body having a cylindrical shape surrounding a rotating electrical machine and a side wall portion provided on at least one end side of the case body in a rotation axis direction. The side wall portion is provided with a plurality of ribs extending in a radial direction when viewed from the rotation axis direction of a rotating electrical machine and the plurality of ribs include ribs having different circumferential widths.Type: ApplicationFiled: June 29, 2020Publication date: August 4, 2022Applicants: HONDA MOTOR CO., LTD., HITACHI ASTEMO, LTD.Inventors: Atsushi NISHIDA, Keiichiro KASHIWABARA, Akira FUJIWARA, Sachio KAWADA, Hideaki NOTO, Shunsuke ISOGAI
-
Patent number: 11239735Abstract: A motor unit includes: a first rotating electric machine which includes a cylindrical first stator, a first rotor disposed coaxially with the first stator, a first shaft disposed coaxially with the first rotor, and a cylindrical first casing accommodating the first stator and the first rotor; a second rotating electric machine which includes a cylindrical second stator, a second rotor disposed coaxially with the second stator, a second shaft disposed coaxially with the second rotor, and a cylindrical second casing accommodating the second stator and the second rotor; a single drive device which is integrally fixed across a peripheral surface in a diameter direction of the first rotor in the first casing and a peripheral surface in a diameter direction of the second rotor in the second casing; and a surface-matching fixing portion which is fixed by a fixing member while an axial end surface of the first casing comes into contact with an axial end surface of the second casing.Type: GrantFiled: March 10, 2020Date of Patent: February 1, 2022Assignees: HONDA MOTOR CO., LTD., Hitachi Automotive Systems, Ltd.Inventors: Manabu Yazaki, Tomoyuki Suzuki, Sachio Kawada, Yasuyuki Saito, Hiroshi Hamano, Tsuyoshi Harada
-
Publication number: 20200295642Abstract: A motor unit includes: a first rotating electric machine which includes a cylindrical first stator, a first rotor disposed coaxially with the first stator, a first shaft disposed coaxially with the first rotor, and a cylindrical first casing accommodating the first stator and the first rotor; a second rotating electric machine which includes a cylindrical second stator, a second rotor disposed coaxially with the second stator, a second shaft disposed coaxially with the second rotor, and a cylindrical second casing accommodating the second stator and the second rotor; a single drive device which is integrally fixed across a peripheral surface in a diameter direction of the first rotor in the first casing and a peripheral surface in a diameter direction of the second rotor in the second casing; and a surface-matching fixing portion which is fixed by a fixing member while an axial end surface of the first casing comes into contact with an axial end surface of the second casing.Type: ApplicationFiled: March 10, 2020Publication date: September 17, 2020Inventors: Manabu Yazaki, Tomoyuki Suzuki, Sachio Kawada, Yasuyuki Saito, Hiroshi Hamano, Tsuyoshi Harada
-
Publication number: 20200295629Abstract: Disclosed is a motor unit that includes: a rotary electrical machine that has a cylindrical stator, a rotor disposed coaxially with the stator, a shaft disposed coaxially with the rotor, and a cylindrical case that houses the stator and the rotor; and a drive unit that has a swell swelling toward the case and is fixed to a circumferential surface that is located in a radial direction of the rotor and is the case. The case has a recess that corresponds to the swell.Type: ApplicationFiled: March 10, 2020Publication date: September 17, 2020Inventors: Manabu Yazaki, Keiichiro Kashiwabara, Tomoyuki Suzuki, Heisuke Kobayashi, Takeshi Hoshinoya, Sachio Kawada, Akira Fujiwara, Yasuyuki Saito, Hiroshi Hamano, Tsuyoshi Harada
-
Publication number: 20200295627Abstract: A rotating electric machine includes: a cylindrical stator core which includes a plurality of slots; a coil which includes a first coil end inserted into the slot and protruding toward one side of the stator core in an axial direction and a second coil end protruding toward the other side in the axial direction; a rotor which is disposed coaxially with the stator core; a shaft which is disposed coaxially with the rotor; and an end wall which is provided at an end side of the shaft and faces the first coil end in the axial direction. The end wall includes a refrigerant outlet which opens in the axial direction so that a refrigerant supplied from the outside is ejected toward the first coil end.Type: ApplicationFiled: March 11, 2020Publication date: September 17, 2020Inventors: Manabu Yazaki, Atsushi Nishida, Teruhito Niimi, Takuji Yano, Akira Kito, Sachio Kawada, Yasuyuki Saito, Hiroshi Hamano, Yuji Kobayashi
-
Patent number: 10505430Abstract: Provided is a rotor of a brushed motor capable of reducing the occurrence of contamination during press-fitting of a commutator onto a knurling and reducing defect factors due to rotor contamination to improve productivity. In a rotor of a brushed motor having a commutator press-fitted onto a knurling of a shaft, an inclined surface is provided on an inner circumferential side of the commutator, and an angle of the inclined surface is configured to be smaller than an angle of an axial end portion of the knurling. The knurling may be configured to be at a position different from a shaft stepped end surface of the shaft and the knurling may be configured to be positioned axially inward of the commutator from an end surface of the commutator.Type: GrantFiled: July 29, 2016Date of Patent: December 10, 2019Assignee: Hitachi Automotive Systems Engineering, Ltd.Inventors: Sachio Kawada, Kouichi Kuniyasu, Kazuhiro Saito
-
Publication number: 20180278131Abstract: Provided is a rotor of a brushed motor capable of reducing the occurrence of contamination during press-fitting of a commutator onto a knurling and reducing defect factors due to rotor contamination to improve productivity. In a rotor of a brushed motor having a commutator press-fitted onto a knurling of a shaft, an inclined surface is provided on an inner circumferential side of the commutator, and an angle of the inclined surface is configured to be smaller than an angle of an axial end portion of the knurling. The knurling may be configured to be at a position different from a shaft stepped end surface of the shaft and the knurling may be configured to be positioned axially inward of the commutator from an end surface of the commutator.Type: ApplicationFiled: July 29, 2016Publication date: September 27, 2018Inventors: Sachio KAWADA, Kouichi KUNIYASU, Kazuhiro SAITO