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公开(公告)号：US10008883B2
公开(公告)日：2018-06-26
申请号：US14897522
申请日：2014-06-23
Inventor： Osamu Ohashi , Tsuyoshi Nishio , Noriaki Asaoka , Masayoshi Koizumi
CPC classification number: H02J50/12 , B60L53/12 , B60L53/60 , B60L2270/147 , H02J7/025 , H02J50/80 , H02J50/90 , Y02T10/7005 , Y02T10/7072 , Y02T10/92 , Y02T90/121 , Y02T90/122 , Y02T90/128 , Y02T90/14 , Y02T90/163
Abstract: Power feed device (100) supplies power to storage battery (152) mounted on vehicle (150), through power receiving unit (154) of vehicle (150). Power supply unit (104) performs preliminary supply to power receiving unit (154) while sequentially changing a frequency, and performs main supply with power larger than in the preliminary supply. Power supply-side controller (103) acquires frequency characteristics associated with power supply coil (104a), and specifies a resonance frequency based on the acquired frequency characteristics. Power supply-side controller (103) determines whether or not to supply power to power reception coil (154a) based on a frequency difference between resonance frequencies.
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公开(公告)号：US09973040B2
公开(公告)日：2018-05-15
申请号：US14778425
申请日：2014-03-20
Inventor： Tsuyoshi Nishio , Osamu Ohashi , Noriaki Asaoka , Masayoshi Koizumi
CPC classification number: H02J50/12 , B60L11/182 , B60L11/1829 , H02J7/025 , H02J50/10 , H02J50/80 , H02J50/90 , Y02T10/7005 , Y02T10/7072 , Y02T90/12 , Y02T90/121 , Y02T90/122 , Y02T90/125 , Y02T90/14
Abstract: To minimize excessively high output or increases in magnetic-flux leakage by controlling power feeding on the power-feeding side if an unforeseen situation occurs. This power-feeding device (100) feeds power to an external power-receiving device (150) in a contactless manner. A power-feeding coil (103) uses electromagnetic power to feed electrical power to a power-receiving coil (154) in the power-receiving device (150). While power is being fed from said power-feeding coil (103), a power-feeding-side control unit (107) determines the amount of displacement of the power-feeding coil (103) and, on the basis of the determined displacement amount, controls the amount of electrical power being fed.
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公开(公告)号：US10576842B2
公开(公告)日：2020-03-03
申请号：US15880606
申请日：2018-01-26
Inventor： Masayoshi Koizumi , Osamu Ohashi , Tsuyoshi Nishio , Noriaki Asaoka
IPC: H02J50/12 , H02J50/60 , G05D1/02 , B60M7/00 , H01F27/02 , H01F38/14 , H02J5/00 , B60L53/126 , B60L53/124 , B60L53/12 , B60L53/36
Abstract: An electricity supply apparatus supplies electricity in a contactless manner to an electricity reception section provided in a vehicle, the apparatus including: an electricity supply coil configured to supply electricity to an electricity reception coil of the electricity reception section, the electricity supply coil having a ring shape, an in-edge, an out-edge, and a mid-point, the inn-edge being adjacent to a hollow portion of the ring shape in a radial direction of the electricity supply coil, the out-edge being outer than the inn-edge in the radial direction, and the mid-point being between the inn-edge and the out-edge in the radial direction; and a casing which houses the electricity supply coil, the casing having a first surface configured to face the electricity reception section and a second surface on which the electricity supply coil is located.
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公开(公告)号：US10170230B2
公开(公告)日：2019-01-01
申请号：US15871226
申请日：2018-01-15
Inventor： Toshiki Tatsuta , Osamu Ohashi , Tsuyoshi Nishio , Noriaki Asaoka , Masayoshi Koizumi
IPC: H01J7/00 , H01F27/02 , H02J50/12 , B60L11/18 , H02J5/00 , H02J7/02 , H01F38/14 , B60M7/00 , H02J7/00
Abstract: A power supply apparatus capable of appropriately supplying electrical power to a power transmission coil even if a foreign object is heated during power supply. The power supply apparatus (100) is provided with a power supply coil (103a) opposing a power-receiving unit (153) provided to a vehicle and supplying power to the power-receiving unit (153), and a casing (103b) accommodating the power supply coil (103a). In the casing (103b), a first cover (202) is formed on a surface of the casing (103b) opposing the power-receiving unit (153), and a second cover (203) opposing the first cover (202) is arranged between the first cover (202) and the power supply coil (103a).
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公开(公告)号：US20180147943A1
公开(公告)日：2018-05-31
申请号：US15880606
申请日：2018-01-26
Inventor： Masayoshi Koizumi , Osamu Ohashi , Tsuyoshi Nishio , Noriaki Asaoka
IPC: B60L11/18 , H02J5/00 , B60M7/00 , H02J7/02 , H01F27/02 , H01F38/14 , G05D1/02 , H02J50/60 , H02J50/12
Abstract: An electricity supply apparatus supplies electricity in a contactless manner to an electricity reception section provided in a vehicle, the apparatus including: an electricity supply coil configured to supply electricity to an electricity reception coil of the electricity reception section, the electricity supply coil having a ring shape, an in-edge, an out-edge, and a mid-point, the inn-edge being adjacent to a hollow portion of the ring shape in a radial direction of the electricity supply coil, the out-edge being outer than the inn-edge in the radial direction, and the mid-point being between the inn-edge and the out-edge in the radial direction; and a casing which houses the electricity supply coil, the casing having a first surface configured to face the electricity reception section and a second surface on which the electricity supply coil is located.
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Patent Agency Ranking
公开(公告)号：US09973043B2
公开(公告)日：2018-05-15
申请号：US14898706
申请日：2014-06-26
Inventor： Masayoshi Koizumi , Osamu Ohashi
IPC: B60L1/00 , H02J50/60 , H02J50/90 , H02J50/80 , B60L11/18 , B60M7/00 , H02J17/00 , H02J7/02 , H02J50/10 , H02J50/05 , H02J50/12
CPC classification number: H02J50/60 , B60L11/18 , B60L11/182 , B60L11/1824 , B60L11/1835 , B60M7/003 , H02J7/025 , H02J17/00 , H02J50/05 , H02J50/10 , H02J50/12 , H02J50/80 , H02J50/90 , Y02T10/7005 , Y02T10/7072 , Y02T90/12 , Y02T90/121 , Y02T90/122 , Y02T90/125 , Y02T90/14
Abstract: Disclosed is a contactless power supply device which supplies power in a contactless manner, and adopts a configuration including a power supply coil that generates an electromagnetic field and supplies power, a case that houses the power supply coil, a wire that dissolves at a temperature below a heat-resistant temperate of the case, a dissolution detection unit that detects dissolution of the wire, and a controller that performs control based on a detection result of the dissolution detection unit.
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公开(公告)号：US10766373B2
公开(公告)日：2020-09-08
申请号：US16456911
申请日：2019-06-28
Inventor： Tsuyoshi Nishio , Osamu Ohashi , Noriaki Asaoka , Masayoshi Koizumi
Abstract: To minimize excessively high output or increases in magnetic-flux leakage by controlling power feeding on the power-feeding side if an unforeseen situation occurs. This power-feeding device (100) feeds power to an external power-receiving device (150) in a contactless manner. A power-feeding coil (103) uses electromagnetic power to feed electrical power to a power-receiving coil (154) in the power-receiving device (150). While power is being fed from said power-feeding coil (103), a power-feeding-side control unit (107) determines the amount of displacement of the power-feeding coil (103) and, on the basis of the determined displacement amount, controls the amount of electrical power being fed.
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公开(公告)号：US10381885B2
公开(公告)日：2019-08-13
申请号：US15949476
申请日：2018-04-10
Inventor： Tsuyoshi Nishio , Osamu Ohashi , Noriaki Asaoka , Masayoshi Koizumi
Abstract: To minimize excessively high output or increases in magnetic-flux leakage by controlling power feeding on the power-feeding side if an unforeseen situation occurs. This power-feeding device (100) feeds power to an external power-receiving device (150) in a contactless manner. A power-feeding coil (103) uses electromagnetic power to feed electrical power to a power-receiving coil (154) in the power-receiving device (150). While power is being fed from said power-feeding coil (103), a power-feeding-side control unit (107) determines the amount of displacement of the power-feeding coil (103) and, on the basis of the determined displacement amount, controls the amount of electrical power being fed.
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公开(公告)号：US10279692B2
公开(公告)日：2019-05-07
申请号：US15830157
申请日：2017-12-04
Inventor： Noriaki Asaoka , Osamu Ohashi , Tsuyoshi Nishio , Masayoshi Koizumi
IPC: H02J5/00 , H02J7/02 , H01F38/14 , H02J50/10 , H02J50/12 , H02J50/70 , H02J50/80 , H02J50/90 , B60L11/18 , H02J17/00
Abstract: The electricity supply device (100) supplies electricity using electromagnetic force and opposes an external electricity reception coil (153a). An electricity supply coil (102a) has a hollow section (102b), and has a spiral shape. A reader (103) has an antenna disposed in the projected space resulting from projecting the hollow section (102b) in the central axial direction of the electricity supply coil (102a) and at a position more separated from the electricity reception coil (153a) than the opposing surface that opposes the electricity reception coil (153a) and is of the electricity supply coil (102a), and ID data transmitted by an RF tag (154) installed proximally to the electricity reception coil (153a) is received and detected by the antenna. An electricity-supply-side control unit (104) determines the presence/absence of an electricity reception coil (153a) on the basis of the ID data detected by the reader (103).
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公开(公告)号：US10076966B2
公开(公告)日：2018-09-18
申请号：US15301857
申请日：2015-04-01
Inventor： Masayoshi Koizumi , Osamu Ohashi , Tomohiro Ota , Takeshi Yamamoto
CPC classification number: B60L11/182 , B60L53/12 , B60L53/30 , H02J7/025 , H02J50/12 , H02J50/80 , Y02T10/7005 , Y02T10/7088 , Y02T90/12 , Y02T90/121 , Y02T90/122 , Y02T90/14
Abstract: This contactless power transmission device transmits power to a contactless power reception device having a reception-side coil and a reception-side resonator which resonates with the reception-side coil. The contactless power transmission device has a transmission unit including a transmission-side coil, a transmission-side resonator which resonates with the transmission-side coil, and an inverter for feeding power to the transmission-side resonator. The inductance value of the transmission-side coil and/or the capacitance value of the transmission-side resonator is set so that the frequency range in which the phase difference of a primary-side current flowing through the transmission unit relative to a primary-side voltage applied to the transmission unit is zero or above is wider than when the inductance value of the reception-side coil are equal to each other as are the capacitance value of the reception-side resonator and the capacitance value of the transmission-side resonator.
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