公开(公告)号：US20240097504A1

公开(公告)日：2024-03-21

申请号：US18242567

申请日：2023-09-06

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Osamu Yamashita ,  Naoki Iwata ,  Shinjiro Saigusa ,  Sungmin Cho ,  Katsuya Kobayashi ,  Toshiya Hashimoto

IPC: H02J50/70 ,  H02J50/10 ,  H02J50/40

CPC classification number: H02J50/70 ,  H02J50/10 ,  H02J50/402

Abstract: A noncontact power supply apparatus includes a coil unit having a coil for transmitting electric power to a power supply target by noncontact and an electromagnetic shield for reducing a leakage magnetic field of the coil. The electromagnetic shield is the laminate body in which the metal plates are laminated. A lubricant having a predetermined viscosity is applied to a contacting surface between the metal plates.

公开(公告)号：US20240096549A1

公开(公告)日：2024-03-21

申请号：US18239498

申请日：2023-08-29

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Osamu Yamashita ,  Naoki Iwata ,  Shinjiro Saigusa ,  Sungmin Cho ,  Katsuya Kobayashi ,  Toshiya Hashimoto

IPC: H01F38/14 ,  H01F17/04 ,  H01F27/28

CPC classification number: H01F38/14 ,  H01F17/04 ,  H01F27/2804

Abstract: A power transmission coil unit provided with a board having at its back surface a component mounting part to which electronic components are mounted and a coil forming part at which a coil comprised of a conductor pattern is formed, a core arranged so as to abut against a back surface of the board and formed with a hole for housing the electronic components at a position facing the electronic components, and a protective member provided at a further front surface side of the power transmission coil unit than the component mounting part of the board and receiving a load applied to the power transmission coil unit. A space is formed on a back surface side of the facing portion of the protective member positioned at the location facing the component mounting part.

公开(公告)号：US20200185150A1

公开(公告)日：2020-06-11

申请号：US16687868

申请日：2019-11-19

Applicant: Toyota Jidosha Kabushiki Kaisha

Inventor： Naoki Iwata ,  Shinjiro Saigusa ,  Masafumi Suzuki ,  Minoru Nakamura

IPC: H01F41/02 ,  B22F3/02 ,  B22F3/24 ,  B22F5/00 ,  B22F1/00

Abstract: A method for manufacturing a powder core includes: making a mixed powder of a magnetic metal powder, a lubricant, and a glass powder; making a molded body by pressing the mixed powder; removing the lubricant from the molded body; and annealing the molded body from which the lubricant has been removed.

公开(公告)号：US20190221340A1

公开(公告)日：2019-07-18

申请号：US16244518

申请日：2019-01-10

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Naoki IWATA ,  Shinjiro Saigusa ,  Masafumi Suzuki ,  Masaaki Nishiyama ,  Jung Hwan Hwang ,  Masashi Ohtsubo

IPC: H01F1/147 ,  H01F1/153 ,  H01F41/02 ,  B22F3/02

CPC classification number: H01F1/1475 ,  B22F3/02 ,  B22F2003/023 ,  H01F1/15366 ,  H01F41/02

Abstract: A method of manufacturing a pressed powder magnetic core disclosed herein may include: mixing soft magnetic metal particles, low-melting-point glass particles and lubricant and heating a mixture of the soft magnetic metal particles, the low-melting-point glass particles and the lubricant at a temperature that is higher than a melting point of the lubricant and is lower than a softening point of the low-melting-point glass particles so as to obtain powder of coated metal particles in which surfaces of the soft magnetic metal particles are coated by the lubricant and the low-melting-point glass particles are distributed in coating layers of the lubricant; filling a mold with the powder; press-molding the powder in the mold; and annealing the press-molded powder. In the pressed powder magnetic core, an amount of the low-melting-point glass particles may be 0.1 wt % to 5.0 wt % relative to an amount of the soft magnetic metal particles.

公开(公告)号：US20160071636A1

公开(公告)日：2016-03-10

申请号：US14847497

申请日：2015-09-08

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Masashi OHTSUBO ,  Masaaki Tani ,  Takeshi Hattori ,  Junghwan Hwang ,  Masashi Hara ,  Shin Tajima ,  Shinjiro Saigusa ,  Kohei Ishii ,  Daisuke Okamoto ,  Toshimitsu Takahashi

IPC: H01F1/33 ,  C21D1/26 ,  B22F1/00 ,  B22F1/02 ,  H01F1/20 ,  C22C38/02 ,  B22F3/24 ,  B22F3/02 ,  H01F41/02 ,  C21D6/00 ,  C22C38/06

CPC classification number: H01F1/33 ,  B22F1/0003 ,  B22F1/02 ,  B22F3/02 ,  B22F3/24 ,  C21D1/26 ,  C21D6/008 ,  C22C38/02 ,  C22C38/06 ,  H01F1/20 ,  H01F1/24 ,  H01F1/26 ,  H01F41/02 ,  H01F41/0246

Abstract: A dust core includes soft magnetic particles, a first coating layer, a second coating layer, and a third coating layer. The first coating layer is made of aluminum oxide with which at least a part of surfaces of the soft magnetic particles are coated. The second coating layer is made of aluminum nitride with which at least a part of a surface of the first coating layer is coated. The third coating layer is made of low-melting-point glass with which at least a part of a surface of the second coating layer is coated. The low-melting-point glass has a softening point lower than an annealing temperature of the soft magnetic particles.

Abstract translation: 防尘芯包括软磁性颗粒，第一涂层，第二涂层和第三涂层。 第一涂层由氧化铝制成，软磁性颗粒的至少一部分表面被涂覆。 第二涂层由氮化铝制成，第一涂层的至少一部分表面被涂覆。 第三涂层由低熔点玻璃制成，第二涂层的至少一部分表面被涂覆。 低熔点玻璃的软化点低于软磁性粒子的退火温度。

公开(公告)号：US20240120773A1

公开(公告)日：2024-04-11

申请号：US18371484

申请日：2023-09-22

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Naoki Iwata ,  Osamu Yamashita ,  Shinjiro Saigusa ,  Toshiya Hashimoto ,  Katsuya Kobayashi ,  Sungmin Cho

IPC: H02J50/10 ,  H02J50/00 ,  H02J50/40

CPC classification number: H02J50/10 ,  H02J50/005 ,  H02J50/40

Abstract: A noncontact power supply device provided with one or more coil units and a cover housing the coil units inside of it. The cover is formed by joining a first sheet arranged at one surface sides of front and back surfaces of the coil units and a second sheet arranged at the other surface sides, the first sheet is a sheet covering the one surface sides of the coil units, the second sheet is a sheet having another surface part covering the other surface sides of the coil units and side surface parts covering side surfaces, the side surface parts of the second sheet are made to abut against side surfaces of the coil units by bending boundaries with the other surface part, and outer edge parts of the side surface parts of the second sheet and outer edge parts of the first sheet are joined.

公开(公告)号：US09941039B2

公开(公告)日：2018-04-10

申请号：US14737876

申请日：2015-06-12

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Daisuke Okamoto ,  Kiyotaka Onodera ,  Shinjiro Saigusa ,  Kohei Ishii ,  Masashi Ohtsubo ,  Junghwan Hwang ,  Masaaki Tani ,  Takeshi Hattori

IPC: H01F17/04 ,  H01F27/24 ,  H01F1/24 ,  H01F41/02 ,  H01F1/147 ,  H01F1/33 ,  B22F1/02 ,  C22C33/02 ,  H01F3/08 ,  H01F27/255

CPC classification number: H01F1/24 ,  B22F1/02 ,  B22F2998/10 ,  C22C33/0257 ,  C22C33/0264 ,  H01F1/14791 ,  H01F1/33 ,  H01F3/08 ,  H01F27/255 ,  H01F41/0246 ,  B22F2009/0828 ,  B22F9/08 ,  B22F9/04 ,  B22F3/02 ,  B22F3/10

Abstract: A soft magnetic member is formed such that, when a differential relative permeability in an applied magnetic field of 100 A/m is represented by a first differential relative permeability μ′L, and when a differential relative permeability in an applied magnetic field of 40 kA/m is represented by a second differential relative permeability μ′H, a ratio of the first differential relative permeability μ′L to the second differential relative permeability μ′H satisfies a relationship of μ′L/μ′H≤10, and a magnetic flux density in an applied magnetic field of 60 kA/m is 1.15 T or higher.