Patents by Inventor Hiroyuki Higashino

Hiroyuki Higashino 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: 11894793
    Abstract: A control device that can prevent the deterioration of temperature estimation accuracy in a rotating electric machine due to its aging deterioration is provided. The control device (10) includes a correction unit (13) to correct at least one of thermal resistance, heat generation, and thermal capacity, which are physical quantities to build a thermal circuit model (30-1) covering a thermal circuit of a rotating electric machine (1), wherein the correction unit (13) corrects at least one of the thermal resistance, the heat generation, and the thermal capacity at a measurement position by using measurement information including temperature (T31) or thermal flow (U32) measured by a sensing unit (8) at the measurement position in the rotating electric machine (1).
    Type: Grant
    Filed: March 15, 2019
    Date of Patent: February 6, 2024
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Shohei Fujikura, Taiga Komatsu, Hiroyuki Higashino, Yuki Hidaka
  • Patent number: 11855570
    Abstract: This motor device includes: a motor having components including a stator and a rotor; and a controlling circuitry to control the motor. The motor is provided with temperature sensors to detect a heat transfer amount and a transfer direction about the components. The controlling circuitry includes a temperature calculator to calculate a component temperature based on a thermal circuit network from thermal resistances and heat capacities given for the components. On the basis of actual measured values of the heat transfer amount and the transfer direction obtained by the temperature sensors, the temperature calculator corrects thermal resistances and heat capacities about the components obtained on the basis of the thermal circuit network, and estimates the temperature of each component during driving of the motor.
    Type: Grant
    Filed: June 3, 2019
    Date of Patent: December 26, 2023
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Kenji Kato, Hideaki Arita, Taiga Komatsu, Yuki Hidaka, Shohei Fujikura, Hiroyuki Higashino
  • Publication number: 20230113162
    Abstract: This rotary electric machine includes: an electric motor; a power supply unit including a heat-dissipation member, a power module, and a cover covering the heat-dissipation member and the power module; and a coolant path. A connection portion connecting the electric motor and the power supply unit is provided between the housing and the power supply unit. A cylindrical portion of the cover extends toward the one side in the axial direction and covers the connection portion from the radially outer side. The coolant path is provided at one or both of the heat-dissipation member and an area between the heat-dissipation member and the housing. The coolant path overlaps the power module as seen in the axial direction. The cylindrical portion of the cover has an opening through which a coolant passes, at a circumferential-direction position different from a circumferential-direction position on the radially outer side of the connection portion.
    Type: Application
    Filed: April 22, 2022
    Publication date: April 13, 2023
    Applicant: Mitsubishi Electric Corporation
    Inventors: Tadashi MURAKAMI, Hiroyuki Higashino, Jun Tahara, Shota Morikawa, Yoshinobu Utsumi, Yosuke Uno
  • Patent number: 11552525
    Abstract: A rotating electrical machine such that a power supply unit can be efficiently cooled, with no increase in size in an axial direction of the rotating electrical machine, is provided. A rotating electrical machine main body and a power supply unit are integrally fixed, and a refrigerant passage is provided on the rotating electrical machine main body side of a metal frame configuring the power supply unit. The refrigerant passage and a control part that controls power supplied to the rotating electrical machine main body are disposed in the same plane in an axial direction of the rotating electrical machine main body, and the refrigerant passage is disposed farther to a radial direction outer side of the rotating electrical machine main body than the control part.
    Type: Grant
    Filed: June 9, 2020
    Date of Patent: January 10, 2023
    Assignee: Mitsubishi Electric Corporation
    Inventors: Jun Tahara, Takashi Hashiba, Satoshi Mitsunaga, Hiroyuki Higashino, Mitsunori Ishizaki, Toshiaki Kashihara, Tadashi Murakami, Yoshinobu Utsumi
  • Patent number: 11532974
    Abstract: In order to obtain an electric rotating machine which can improve rotating machine efficiency by suppressing a harmonic component of rotor magnetomotive force and reducing harmonic core loss, a permanent magnet is furnished in some of inter-magnetic pole portions, the inter-magnetic pole portion being formed between a first claw-shaped magnetic pole portion and a second claw-shaped magnetic pole portion; the shapes of a first chamfered portion and a second chamfered portion, which are provided in the inter-magnetic pole portion where the permanent magnet is inserted, differ from those of a first chamfered portion and a second chamfered portion, which are provided in an inter-magnetic pole portion where the permanent magnet is not inserted; and/or the shapes of a first magnetic flux adjusting portion and a second magnetic flux adjusting portion, which are provided in the inter-magnetic pole portion where the permanent magnet is inserted, differ from those of a first magnetic flux adjusting portion and a second
    Type: Grant
    Filed: November 3, 2020
    Date of Patent: December 20, 2022
    Assignee: Mitsubishi Electric Corporation
    Inventors: Yuki Hidaka, Toshiyuki Yoshizawa, Naohide Maeda, Tadashi Murakami, Hiroyuki Higashino
  • Publication number: 20220385157
    Abstract: In an electric rotating machine which can improve rotating machine efficiency by suppressing a harmonic component of rotor magnetomotive force and reducing harmonic core loss, a permanent magnet is furnished in some of inter-magnetic pole portions, the inter-magnetic pole portion being formed between a first claw-shaped magnetic pole portion and a second such pole portion; the shapes of first and second chamfered portions provided in the inter-magnetic pole portion where the permanent magnet is inserted, differ from those of first and second chamfered portions provided in an inter-magnetic pole portion having no permanent magnet inserted; or the shapes of a first and second magnetic flux adjusting portions provided in the inter-magnetic pole portion where the permanent magnet is inserted, differ from those of first and second magnetic flux adjusting portions provided in the inter-magnetic pole portion where no permanent magnet is inserted.
    Type: Application
    Filed: August 9, 2022
    Publication date: December 1, 2022
    Applicant: Mitsubishi Electric Corporation
    Inventors: Yuki HIDAKA, Toshiyuki YOSHIZAWA, Naohide MAEDA, Tadashi MURAKAMI, Hiroyuki HIGASHINO
  • Publication number: 20220360145
    Abstract: With an object, of providing a rotating electric machine such that a reduction in size can be achieved, and a balance between a cooling performance and vibration resistance can be achieved, a multiple of connection portions formed of a first connection portion and a second connection portion that mechanically connect a rotating electric machine main body and a power converter are provided on a non-external device connection portion side bracket in the rotating electric machine main body and a heat dissipating member in the power converter, cross-sectional centers of the first connection portion and the second connection portion are caused to be positioned farther to an inner diameter side than an outer diameter of a stator, and a power module is disposed between two connection portions neighboring in a circumferential direction.
    Type: Application
    Filed: December 20, 2021
    Publication date: November 10, 2022
    Applicant: Mitsubishi Electric Corporation
    Inventors: Hiroyuki HIGASHINO, Yosuke UNO, Saburo TANAKA, Toshiaki KASHIHARA, Yoshinobu UTSUMI, Jun TAHARA, Hiroyuki YAHARA, Takaya MUTO, Shota MORIKAWA, Naohide MAEDA
  • Patent number: 11432437
    Abstract: A power conversion device includes: a main body including a substrate to which a power conversion unit and a coil are provided; and a first heat dissipation portion which holds the substrate and dissipates heat of the substrate, wherein the substrate is formed by one sheet, the coil is formed integrally with the substrate, the first heat dissipation portion is fixed to a substrate first surface of the substrate, a heat dissipation second surface of the first heat dissipation portion has a coil cooling portion opposed to and abutting on a part where the coil is formed, of the substrate.
    Type: Grant
    Filed: June 21, 2017
    Date of Patent: August 30, 2022
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Takaaki Takahara, Satoshi Murakami, Ryota Kondo, Hiroyasu Iwabuki, Hiroyuki Higashino
  • Publication number: 20220190670
    Abstract: In the rotating electrical machine with integrated control device provided with the drive unit and the inverter assembly, the brush holder that holds the brush is detachably attached to either the rear bracket side of the inverter assembly or the inverter assembly side of the rear bracket so that it is not necessary to provide a hole for incorporating the brush holder in the central part of the control module, and the radial dimension of the control module can be reduced.
    Type: Application
    Filed: September 27, 2021
    Publication date: June 16, 2022
    Applicant: Mitsubishi Electric Corporation
    Inventors: Yosuke UNO, Yoshinobu UTSUMI, Jun TAHARA, Hiroyuki HIGASHINO, Tatsuya FUKASE
  • Publication number: 20220173689
    Abstract: This motor device includes: a motor having components including a stator and a rotor; and a controlling circuitry to control the motor. The motor is provided with temperature sensors to detect a heat transfer amount and a transfer direction about the components. The controlling circuitry includes a temperature calculator to calculate a component temperature based on a thermal circuit network from thermal resistances and heat capacities given for the components. On the basis of actual measured values of the heat transfer amount and the transfer direction obtained by the temperature sensors, the temperature calculator corrects thermal resistances and heat capacities about the components obtained on the basis of the thermal circuit network, and estimates the temperature of each component during driving of the motor.
    Type: Application
    Filed: June 3, 2019
    Publication date: June 2, 2022
    Applicant: Mitsubishi Electric Corporation
    Inventors: Kenji KATO, Hideaki ARITA, Taiga KOMATSU, Yuki HIDAKA, Shohei FUJIKURA, Hiroyuki HIGASHINO
  • Publication number: 20220158582
    Abstract: A control device that can prevent the deterioration of temperature estimation accuracy in a rotating electric machine due to its aging deterioration is provided. The control device (10) includes a correction unit (13) to correct at least one of thermal resistance, heat generation, and thermal capacity, which are physical quantities to build a thermal circuit model (30-1) covering a thermal circuit of a rotating electric machine (1), wherein the correction unit (13) corrects at least one of the thermal resistance, the heat generation, and the thermal capacity at a measurement position by using measurement information including temperature (T31) or thermal flow (U32) measured by a sensing unit (8) at the measurement position in the rotating electric machine (1).
    Type: Application
    Filed: March 15, 2019
    Publication date: May 19, 2022
    Inventors: Shohei FUJIKURA, Taiga KOMATSU, Hiroyuki HIGASHINO, Yuki HIDAKA
  • Publication number: 20220082524
    Abstract: Provided is an electrophoresis device that, by electrophoresis, feeds a sample into capillaries and optically detects the sample, the electrophoresis device being provided with capillaries, a capillary head provided at the distal end of the capillaries, a phoretic medium-filled container used for electrophoresis and filled with a phoretic medium, a guide member that covers the side surface of the phoretic medium-filled container, a seal member that seals from below the phoretic medium filled in the phoretic medium-filled container, and a plunger that presses the seal member.
    Type: Application
    Filed: November 23, 2021
    Publication date: March 17, 2022
    Inventors: Ryusuke KIMURA, Motohiro YAMAZAKI, Hitoshi MIYATA, Hiroyuki HIGASHINO
  • Patent number: 11226307
    Abstract: Provided is an electrophoresis device that, by electrophoresis, feeds a sample into capillaries and optically detects the sample, the electrophoresis device being provided with capillaries, a capillary head provided at the distal end of the capillaries, a phoretic medium-filled container used for electrophoresis and filled with a phoretic medium, a guide member that covers the side surface of the phoretic medium-filled container, a seal member that seals from below the phoretic medium filled in the phoretic medium-filled container, and a plunger that presses the seal member.
    Type: Grant
    Filed: May 28, 2020
    Date of Patent: January 18, 2022
    Assignee: Hitachi High-Tech Corporation
    Inventors: Ryusuke Kimura, Motohiro Yamazaki, Hitoshi Miyata, Hiroyuki Higashino
  • Publication number: 20210355957
    Abstract: An air flow in an axial direction of a centrifugal fan is caused to increase. A centrifugal fan included in a rotating electrical machine or the like is configured of a main plate having a multiple of plate-form blades provided in a ring form in a periphery of an axis of rotation and formed in a range such that a diameter increases heading from a front to a rear in a direction of rotation. The blade is provided erected from an arm-form plate projecting on an outer diameter side of a flat face portion of the main plate, at least one of the multiple of blades has a curved portion in one portion of a face portion configuring the blade, and a region of the blade in which the curved portion is provided is formed in a form pushed down to the front in the direction of rotation.
    Type: Application
    Filed: March 24, 2021
    Publication date: November 18, 2021
    Applicant: Mitsubishi Electric Corporation
    Inventors: Keisuke TAKEISHI, Hiroyuki Higashino, Shungo Miyagi, Daisuke Sasaki
  • Publication number: 20210226506
    Abstract: A rotating electrical machine such that a power supply unit can be efficiently cooled, with no increase in size in an axial direction of the rotating electrical machine, is provided. A rotating electrical machine main body and a power supply unit are integrally fixed, and a refrigerant passage is provided on the rotating electrical machine main body side of a metal frame configuring the power supply unit. The refrigerant passage and a control part that controls power supplied to the rotating electrical machine main body are disposed in the same plane in an axial direction of the rotating electrical machine main body, and the refrigerant passage is disposed farther to a radial direction outer side of the rotating electrical machine main body than the control part.
    Type: Application
    Filed: June 9, 2020
    Publication date: July 22, 2021
    Applicant: Mitsubishi Electric Corporation
    Inventors: Jun TAHARA, Takashi HASHIBA, Satoshi MITSUNAGA, Hiroyuki HIGASHINO, Mitsunori ISHIZAKI, Toshiaki KASHIHARA, Tadashi MURAKAMI, Yoshinobu UTSUMI
  • Publication number: 20210184519
    Abstract: In order to obtain an electric rotating machine which can improve rotating machine efficiency by suppressing a harmonic component of rotor magnetomotive force and reducing harmonic core loss, a permanent magnet is furnished in some of inter-magnetic pole portions, the inter-magnetic pole portion being formed between a first claw-shaped magnetic pole portion and a second claw-shaped magnetic pole portion; the shapes of a first chamfered portion and a second chamfered portion, which are provided in the inter-magnetic pole portion where the permanent magnet is inserted, differ from those of a first chamfered portion and a second chamfered portion, which are provided in an inter-magnetic pole portion where the permanent magnet is not inserted; and/or the shapes of a first magnetic flux adjusting portion and a second magnetic flux adjusting portion, which are provided in the inter-magnetic pole portion where the permanent magnet is inserted, differ from those of a first magnetic flux adjusting portion and a second
    Type: Application
    Filed: November 3, 2020
    Publication date: June 17, 2021
    Applicant: Mitsubishi Electric Corporation
    Inventors: Yuki HIDAKA, Toshiyuki Yoshizawa, Naohide Maeda, Tadashi Murakami, Hiroyuki Higashino
  • Publication number: 20210184541
    Abstract: In order to provide an electric rotating machine which is inexpensive and miniaturized while improving cooling performance of a rotor, a power supply unit is fixed on the axial side of a shaft in a bracket and a permanent magnet is arranged adjacent to the advancing side in the rotation direction of a claw-shaped magnetic pole portion of a magnetic pole on the side where the power supply unit is provided.
    Type: Application
    Filed: November 3, 2020
    Publication date: June 17, 2021
    Applicant: Mitsubishi Electric Corporation
    Inventors: Tadashi MURAKAMI, Toshiyuki YOSHIZAWA, Naohide MAEDA, Jun TAHARA, Hiroyuki HIGASHINO, Yuki HIDAKA
  • Publication number: 20210067002
    Abstract: A heat-generating-component cooling flow passage and a bearing cooling flow passage are formed by mounting a flow passage cover to a rotor unit side of a rear bracket-cum-cooler. An arrangement region of the bearing cooling flow passage in an axial direction of the rotary shaft is arranged so as to overlap with at least a part of an arrangement region of a rear bearing in the axial direction of the rotary shaft. The heat-generating-component cooling flow passage is arranged so as to overlap with at least a part of an arrangement region of a heat generating component when viewed in the axial direction of the rotary shaft. A stator core is connected to the heat-generating-component cooling flow passage through the rear bracket-cum-cooler.
    Type: Application
    Filed: March 23, 2018
    Publication date: March 4, 2021
    Applicant: Mitsubishi Electric Corporation
    Inventors: Hiroyuki HIGASHINO, Jun TAHARA, Tatsuya FUKASE, Yoshinobu UTSUMI, Tomoaki SHIMANO
  • Patent number: 10811939
    Abstract: In order to efficiently cool a stator and rotor of a rotating electrical machine, cooling oil is supplied by a pump in a pressurized state to a first reservoir portion provided in an upper portion inside a housing, and after the cooling oil is ejected from the first reservoir portion, the cooling oil is guided to a stator coil end cooling structure, and to a rotor bearing and rotor core cooling structure, using the weight of the cooling oil itself.
    Type: Grant
    Filed: October 28, 2014
    Date of Patent: October 20, 2020
    Assignee: Mitsubishi Electric Corporation
    Inventors: Yoshiaki Kitta, Koichi Ojima, Katsunari Takagi, Masaya Inoue, Hiroyuki Higashino
  • Publication number: 20200292493
    Abstract: Provided is an electrophoresis device that, by electrophoresis, feeds a sample into capillaries and optically detects the sample, the electrophoresis device being provided with capillaries, a capillary head provided at the distal end of the capillaries, a phoretic medium-filled container used for electrophoresis and filled with a phoretic medium, a guide member that covers the side surface of the phoretic medium-filled container, a seal member that seals from below the phoretic medium filled in the phoretic medium-filled container, and a plunger that presses the seal member.
    Type: Application
    Filed: May 28, 2020
    Publication date: September 17, 2020
    Inventors: Ryusuke KIMURA, Motohiro YAMAZAKI, Hitoshi MIYATA, Hiroyuki HIGASHINO