Patents by Inventor Nobuyuki Nishii
Nobuyuki Nishii 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: 9590462Abstract: An electric compressor includes a hermetic container 103, an electric motor drive circuit section 201, a through hole 120, a hermetic terminal 207, a conductive terminal 301, a connecting terminal 302, and a housing 300. The terminal connecting portion connects the conductive terminal 301 and the cluster terminal 302 to each other. The housing is composed of a plurality of structure bodies. A convexo-concave shape is provided between bonding surfaces of the plurality of structure bodies. The housing 300 is provided with a cylindrical structure 311 into which the conductive terminal 301 is inserted. A convex structure 316 which comes into contact with the wire 306 is formed on an inner surface of the wire-insertion hole 307.Type: GrantFiled: October 24, 2013Date of Patent: March 7, 2017Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Gento Kobayashi, Nobuyuki Nishii, Nobuaki Ogawa, Minoru Fukumoto
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Publication number: 20150214805Abstract: An electric compressor includes a hermetic container 103, an electric motor drive circuit section 201, a through hole 120, a hermetic terminal 207, a conductive terminal 301, a connecting terminal 302, and a housing 300. The terminal connecting portion connects the conductive terminal 301 and the cluster terminal 302 to each other. The housing is composed of a plurality of structure bodies. A convexo-concave shape is provided between bonding surfaces of the plurality of structure bodies. The housing 300 is provided with a cylindrical structure 311 into which the conductive terminal 301 is inserted. A convex structure 316 which comes into contact with the wire 306 is formed on an inner surface of the wire-insertion hole 307.Type: ApplicationFiled: October 24, 2013Publication date: July 30, 2015Applicant: Panasonic Intellectual Property Management Co. LtdInventors: Gento Kobayashi, Nobuyuki Nishii, Nobuaki Ogawa, Minoru Fukumoto
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Publication number: 20120308414Abstract: An inverter-integrated electric compressor is structured to include a suction refrigeration path (61) for intensively flowing a sucked refrigerant (30) therethrough, such that the suction refrigerant path (61) is provided only in the vicinity of a switching device module (105), which is a main heat source in an inverter device portion (101), so that the sucked refrigerant is concentrated in only the vicinity of the switching device module, which is the main heat source in the inverter device portion. This enables effectively cooling the inverter device portion, with the sucked refrigerant, without involving adjustments of operating conditions for a refrigeration cycle.Type: ApplicationFiled: September 14, 2011Publication date: December 6, 2012Applicant: PANASONIC CORPORATIONInventors: Nobuaki Ogawa, Naomi Goto, Toru Adachi, Minoru Kajitani, Nobuyuki Nishii
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Patent number: 8192178Abstract: An inverter-device built-in type electric compressor includes a compressor terminal and a direct-mounting connector, which connects the inverter-device to an external circuit, at an electric compressor side. The direct-mounting connector faces toward the electric compressor and is placed in parallel with a center axis of the electric compressor. A harness connector wired from a motor of the electric compressor is detachably and electrically connected to the compressor terminal, and the electric compressor is detachably and mechanically connected to the inverter-device.Type: GrantFiled: September 24, 2009Date of Patent: June 5, 2012Assignee: Panasonic CorporationInventors: Nobuyuki Nishii, Naomi Gotou
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Publication number: 20100077793Abstract: An inverter-device built-in type electric compressor includes a compressor terminal and a direct-mounting connector, which connects the inverter-device to an external circuit, at an electric compressor side. The direct-mounting connector faces toward the electric compressor and is placed in parallel with a center axis of the electric compressor. A harness connector wired from a motor of the electric compressor is detachably and electrically connected to the compressor terminal, and the electric compressor is detachably and mechanically connected to the inverter-device.Type: ApplicationFiled: September 24, 2009Publication date: April 1, 2010Inventors: Nobuyuki Nishii, Naomi Gotou
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Publication number: 20080095646Abstract: The electrically driven compressor integrally formed with an inverter device contains compression mechanism section (28); motor (31) as a power source of the compression mechanism section; metal housing (32) for accommodating the compression mechanism section and the motor; inverter device (20), which is disposed outside the metal housing, for supplying electricity to the motor; and electric connection terminal (8) for electrically connecting between an inside and an outside of the metal housing. The electric connection terminal has pin terminal (10) formed of a metal with low thermal conductivity and a metal with high thermal conductivity plated on the metal with low thermal conductivity. The pin terminal is electrically connected to the inverter device by solder (9).Type: ApplicationFiled: April 28, 2005Publication date: April 24, 2008Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.Inventors: Nobuyuki Nishii, Naomi Goto
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Patent number: 6820437Abstract: An air conditioner includes a direct-current (DC) power supply, a compressor, and a compressor driving device that converts a current supplied from the DC power supply into an alternate-current (AC) for driving the compressor. The DC power supply energizes the driving device through a center conductor and an outer conductor of a shield cable. This structure allows the driving device not to include a capacitor for smoothing a power current, and to suppress surge voltages and electromagnetic-wave radiation, thus providing an air-conditioner including a compact size and light-weighted compressor driving device.Type: GrantFiled: July 18, 2003Date of Patent: November 23, 2004Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Naomi Goto, Nobuyuki Nishii
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Patent number: 6779989Abstract: A plurality of connection terminals are covered with a housing so that the plurality of connection terminals are collectively treated by handling of the housing. The housing is put over and fitted to a case of a compressor while connecting the connection terminals to connection pins for external wiring through an opening of the housing. With a seal member arranged in between, the opening is pressed against an external face of the case to conduct sealing between them.Type: GrantFiled: March 13, 2002Date of Patent: August 24, 2004Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Masahiko Makino, Yoshifumi Abe, Nobuyuki Nishii, Ken Obata, Yoshihiko Konishi
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Publication number: 20040074255Abstract: An air conditioner includes a direct-current (DC) power supply, a compressor, and a compressor driving device that converts a current supplied from the DC power supply into an alternate-current (AC) for driving the compressor. The DC power supply energizes the driving device through a center conductor and an outer conductor of a shield cable. This structure allows the driving device not to include a capacitor for smoothing a power current, and to suppress surge voltages and electromagnetic-wave radiation, thus providing an air-conditioner including a compact size and light-weighted compressor driving device.Type: ApplicationFiled: July 18, 2003Publication date: April 22, 2004Inventors: Naomi Goto, Nobuyuki Nishii
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Patent number: 6665200Abstract: In an air conditioner including a control unit receiving a power from a switching power supply, the switching power supply is connected to a DC power source without passing through a switch device or power application device. The output of the switching power supply is connected to a capacitor via a diode. The control unit is able to operate even when the capacitor to be charged via the power application device is not charged. Accordingly, the motor-driven compressor may start to operate quickly.Type: GrantFiled: May 31, 2002Date of Patent: December 16, 2003Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Naomi Goto, Nobuyuki Nishii, Yasufumi Kurahashi
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Patent number: 6657408Abstract: In an air conditioner having a control unit receiving a power from a switching power supply, a supplied voltage for the control unit is reduced to a possible lowest voltage for the unit to operate. This arrangement provides the air conditioner with less electromagnetic wave noise of the switching power supply, with a quick check and repair, and with having a motor-driven compressor quick start.Type: GrantFiled: June 3, 2002Date of Patent: December 2, 2003Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Naomi Goto, Nobuyuki Nishii, Yasufumi Kurahashi
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Patent number: 6539739Abstract: An automobile air conditioner having a charging device for charging a power source capacitor preliminarily before driving a motor-driven compressor, which comprises a discharge circuit for discharging the electric charge in the capacitor through a power feeding device, and a controller for controlling the discharge by the discharge circuit. Further by comprising a cut-off detecting circuit for detecting when the battery is cut off, it is discharged automatically. Moreover, the voltage of the battery is converted, and supplied as a power source for the controller.Type: GrantFiled: February 14, 2002Date of Patent: April 1, 2003Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Naomi Goto, Nobuyuki Nishii, Yasufumi Kurahashi
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Publication number: 20030034761Abstract: In an air conditioner including a control unit receiving a power from a switching power supply, the switching power supply is connected to a DC power source without passing through a switch device or power application device. The output of the switching power supply is connected to a capacitor via a diode. The control unit is able to operate even when the capacitor to be charged via the power application device is not charged. Accordingly, the motor-driven compressor may start to operate quickly.Type: ApplicationFiled: May 31, 2002Publication date: February 20, 2003Inventors: Naomi Goto, Nobuyuki Nishii, Yasufumi Kurahashi
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Publication number: 20030006727Abstract: In an air conditioner having a control unit receiving a power from a switching power supply, a supplied voltage for the control unit is reduced to a possible lowest voltage for the unit to operate. This arrangement provides the conditioner with less electromagnetic wave noise of the switching power supply, with a quick check and repair, and with having a motor-driven compressor start quickly.Type: ApplicationFiled: June 3, 2002Publication date: January 9, 2003Inventors: Naomi Goto, Nobuyuki Nishii, Yasufumi Kurahashi
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Publication number: 20020148242Abstract: An automobile air conditioner having a charging device for charging a power source capacitor preliminarily before driving a motor-driven compressor, which comprises a discharge circuit for discharging the electric charge in the capacitor through a power feeding device, and a controller for controlling the discharge by the discharge circuit. Further by comprising a cut-off detecting circuit for detecting when the battery is cut off, it is discharged automatically. Moreover, the voltage of the battery is converted, and supplied as a power source for the controller.Type: ApplicationFiled: February 14, 2002Publication date: October 17, 2002Inventors: Naomi Goto, Nobuyuki Nishii, Yasufumi Kurahashi
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Publication number: 20020131869Abstract: A plurality of connection terminals are covered with a housing so that the plurality of connection terminals are collectively treated by handling of the housing. The housing is put over and fitted to a case of a compressor while connecting the connection terminals to connection pins for external wiring through an opening of the housing. With a seal member arranged in between, the opening is pressed against an external face of the case to conduct sealing between them.Type: ApplicationFiled: March 13, 2002Publication date: September 19, 2002Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., Ltd.Inventors: Masahiko Makino, Yoshifumi Abe, Nobuyuki Nishii, Ken Obata, Yoshihiko Konishi
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Patent number: 6441311Abstract: A motor-driven compressor is provided with a power supply terminal secured to a metallic housing and electrically connected to a power source. The power supply terminal includes a base secured to the metallic housing, a conductive element secured to the base, and an insulator for insulating the conductive element from the base. A portion of the conductive element and a portion of the insulator that are located inside the metallic housing are covered with an insulating resinous cover.Type: GrantFiled: December 21, 2000Date of Patent: August 27, 2002Assignees: Matsushita Electric Industrial Co., Ltd., Nissan Motor Co., Ltd.Inventors: Minoru Fukumoto, Nobuyuki Nishii, Makoto Yoshida
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Patent number: 6384558Abstract: A driving device for a motor-driven compressor including: (a) a motor-driven compressor for compressing a refrigerant; (b) a DC power supply serving as a power source of the compressor; (c) a capacitor connected in parallel with the DC power supply; (d) a switch provided between the DC power supply and the capacitor, and closed when the compressor is operated and opened when the compressor is stopped; (e) a driver for converting electric power supplied from the DC power supply via the switch and capacitor into driving power for the compressor, and for outputting the driving power thereto; (f) a controller for instructing the driver to operate or stop the compressor; and (g) a discharge control unit provided in the driver and controlling the driver so that the capacitor is discharged using the compressor as a medium, after the instruction to stop the compressor has been given.Type: GrantFiled: December 12, 2000Date of Patent: May 7, 2002Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Makoto Yoshida, Nobuyuki Nishii
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Patent number: 6315527Abstract: A motor-driven compressor is driven by a driving device via a single-circuit external wiring system. The motor-driven compressor includes a closed vessel, a compression mechanism accommodated in the closed vessel, and an electric motor accommodated in the closed vessel for driving the compression mechanism. The electric motor includes three-phase stator windings each having two parallel circuits.Type: GrantFiled: April 11, 2000Date of Patent: November 13, 2001Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Masahiko Makino, Minoru Fukumoto, Nobuyuki Nishii, Hitoshi Funami
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Publication number: 20010013761Abstract: A driving device for a motor-driven compressor including: (a) a motor-driven compressor for compressing a refrigerant; (b) a DC power supply serving as a power source of the compressor; (c) a capacitor connected in parallel with the DC power supply; (d) a switch provided between the DC power supply and the capacitor, and closed when the compressor is operated and opened when the compressor is stopped; (e) a driver for converting electric power supplied from the DC power supply via the switch and capacitor into driving power for the compressor, and for outputting the driving power thereto; (f) a controller for instructing the driver to operate or stop the compressor; and (g) a discharge control unit provided in the driver and controlling the driver so that the capacitor is discharged using the compressor as a medium, after the instruction to stop the compressor has been given.Type: ApplicationFiled: December 12, 2000Publication date: August 16, 2001Inventors: Makoto Yoshida, Nobuyuki Nishii