Patents by Inventor Isao Sonoda
Isao Sonoda 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).
-
Publication number: 20160006324Abstract: In a rotary electric machine having an integrated drive control device, a motor housing joined to a mounting housing, which is a cast member, is made of a steel material. Therefore, an outer diameter is reduced and strength for retaining a stator core is satisfactorily ensured even under high-temperature environments.Type: ApplicationFiled: October 4, 2012Publication date: January 7, 2016Inventors: Satoru AKUTSU, Isao SONODA, Yoshihito ASAO
-
Publication number: 20150333600Abstract: Provided is an electric drive apparatus in which a detected portion (10) of a rotation angle sensor is disposed at an end of a shaft (7) of a motor, and a sensor portion (300) as a detection portion of the rotation angle sensor is disposed coaxially with the rotating axis of the shaft. In a control unit (200), an inverter circuit portion with a drive element (SW) for driving the motor, and a control substrate (17) which is separate from the sensor portion and controls the output of the inverter circuit portion are disposed. The sensor portion and the control substrate are electrically connected, with the control substrate disposed along a plane perpendicular to the rotating axis of the shaft.Type: ApplicationFiled: October 1, 2012Publication date: November 19, 2015Applicant: Mitsubishi Electric CorporationInventors: Masatsugu NAKANO, Satoru AKUTSU, Isao SONODA, Kohei USHIO, Yoshihito ASAO
-
Patent number: 9118236Abstract: Provided is a motor for electric power steering, which prevents a foreign substance from entering the interior of a controller. The motor for electric power steering includes a resolver structure provided between a housing for separating the controller and a resolver from each other and an insulator opposed to the housing so as to surround a fixing portion for fixing base end portions of terminals electrically connected to distal end portions of conductors of coils, the resolver structure preventing a foreign substance from passing between the housing and the insulator to enter the interior of the controller.Type: GrantFiled: November 12, 2010Date of Patent: August 25, 2015Assignee: Mitsubishi Electric CorporationInventors: Hideya Nishikawa, Isao Sonoda
-
Publication number: 20150171709Abstract: Provided is an electric driving device including an electric motor (1), and a control device (20) arranged on an axis line of a rotation shaft (2) of the electric motor, for controlling the electric motor. The electric motor includes a motor terminal (13) extending toward the control device in parallel to a direction of the axis line of the rotation shaft, and a slit (13a) is formed at an end portion of the motor terminal on the control device side. The control device includes a motor connection terminal (34) formed on an extension line of the motor terminal and connected to the motor terminal. The slit of the motor terminal is press-fitted and fixed to the motor connection terminal, and an insulating member (33) for holding the motor connection terminal is fixed to the heat sink (35).Type: ApplicationFiled: August 28, 2012Publication date: June 18, 2015Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Shinichi Ito, Isao Sonoda, Tadayuki Fujimoto
-
Patent number: 8924081Abstract: An electric power steering apparatus and control device integrated-type electric motor includes an electric motor driving circuit constituted by a plurality of semiconductor power elements and controlling electric power supplied to an armature winding of an electric motor, a switch device for opening and closing a connection between an input terminal of the electric motor driving circuit and an external power source, and another switch device for opening and closing the armature winding, wherein at least one of both the switch devices is constituted by a semiconductor switch element, and the power elements and the semiconductor switch element are mounted on a board attached to a metallic case.Type: GrantFiled: July 16, 2008Date of Patent: December 30, 2014Assignee: Mitsubishi Electric CorporationInventors: Isao Sonoda, Yoshihito Asao
-
Publication number: 20140145548Abstract: A material of the stator core is different from a material of the housings, in a state where one end portion in the axis direction of the stator core is contacted to the first housing, and the other end portion in the axis direction of the stator core is contacted to the second housing; and a neighboring portion of a contact portion, at which the first housing is contacted to the stator core, and another neighboring portion of a contact portion, at which the second housing is contacted to the stator core, are connected by a connecting component in the axis direction, of which material is the same as a material of the stator core, whereby the first housing and the second housing are connected each other; and the first housing and the second housing face each other in a state where a gap intervenes between both housings.Type: ApplicationFiled: October 6, 2011Publication date: May 29, 2014Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Yoshihito Asao, Isao Sonoda, Kohei Ushio, Satoru Akutsu
-
Publication number: 20140028130Abstract: A rotary electric machine according to the present invention includes a stator having a connection member forming a three phase delta connection by coil windings.Type: ApplicationFiled: August 29, 2011Publication date: January 30, 2014Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Isao Sonoda, Atsushi Sakaue, Satoru Akutsu
-
Publication number: 20130334906Abstract: To obtain a drive unit integrated rotating electrical machine that makes it easier to connect power circuits and achieves not only excellent vibration resistance but also excellent heat releasing properties. Means for Solution A drive unit integrated rotating electrical machine has a motor, a drive unit driving the motor under control and provided with power switching elements and conductors passing a current to the power switching elements, and a heat sink cooling the drive unit, which are combined into one unit. The drive unit integrated rotating electrical machine is characterized in that: the power switching elements are molded and formed into mold modules in a state in which terminals thereof are exposed; the conductors are insert-molded in a frame in a state in which terminals thereof are exposed; and the exposed terminals of the mold modules are connected to the exposed terminals of the insert-molded conductors and the mold modules are firmly fixed to the heat sink.Type: ApplicationFiled: May 20, 2011Publication date: December 19, 2013Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Isao Sonoda, Yoshihito Asao, Mamoru Watanabe, Katsuhiko Omae, Tetsushi Watanabe
-
Publication number: 20130300235Abstract: There is provided a drive-device-integrated rotating electrical machine, in which a radially protruding portion (35,39) is provided radially on at least one of a housing (17) and a heat sink (29) which constitute a storing section (22) of the drive device (8); an opening portion (36) is formed on at least one of the radially protruding portion (35); a connector section (34) is attachably/detachably attached onto the opening portion (36); and a connector-connecting portion (46) for electrically connecting the connector section with the drive device is provided in the vicinity of the opening portion.Type: ApplicationFiled: April 6, 2011Publication date: November 14, 2013Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Satoru Akutsu, Isao Sonoda, Yoshihito Asao
-
Publication number: 20130257185Abstract: A rotary electric machine according to the present invention is a rotary electric machine including: a heat sink mounted with a power circuit; a housing for containing incorporated components; and a frame for containing a rotor and a stator core; the heat sink, the housing, and the frame being coaxially and integrally configured. In the rotary electric machine, there are included a lead frame connected to a power circuit, and a connector portion connected to the lead frame and being for connecting to the outside; the heat sink is made of metal; and the housing is made of resin.Type: ApplicationFiled: April 20, 2011Publication date: October 3, 2013Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Satoru Akutsu, Isao Sonoda, Yoshihito Asao
-
Publication number: 20130249356Abstract: A motor drive control apparatus 30, on which a switching element 73 for performing drive control of the motor 10 is mounted, includes: a heat sink 50 placed on the front side or rear side of the motor; and a housing 40 that is coupled to the heat sink and couples the heat sink to the frame or that covers the switching element mounted on the heat sink, and wherein an abutment surface 110 between the housing and the heat sink is located on a single plane intersecting with the direction of the rotation axis of the motor, and screw holes 42 and 52 for coupling the frame, the heat sink and the housing to each other are provided such that the positions in the circumferential direction of the screw holes 42 and 52 correspond to each other.Type: ApplicationFiled: March 4, 2011Publication date: September 26, 2013Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Masatsugu Nakano, Yoshihito Asao, Isao Sonoda
-
Publication number: 20130221776Abstract: An electric power steering electric motor apparatus includes: an electric motor including: a motor housing; a stator; a rotor; and a power supplying portion that supplies electric power to the stator; and a controlling unit including a driving circuit that supplies electric power to the electric motor; a connecting portion; a controlling circuit; and a case that covers the driving circuit and the controlling circuit, the electric motor and the controlling unit being mounted coaxially onto a gear housing that reduces rotational speed of the electric motor so as to position the controlling unit on a side near the gear housing, and the connecting portion being connected to the power supplying portion inside the case through an opening portion formed on the case, and being positioned and held by an insulating member so as to be insulated from the case and the motor housing.Type: ApplicationFiled: May 30, 2011Publication date: August 29, 2013Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Atsushi Sakaue, Yoshihito Asao, Satoru Akutsu, Isao Sonoda, Kazuhisa Takashima
-
Publication number: 20130134841Abstract: Provided is a motor for electric power steering, which prevents a foreign substance from entering the interior of a controller. The motor for electric power steering includes a resolver structure provided between a housing for separating the controller and a resolver from each other and an insulator opposed to the housing so as to surround a fixing portion for fixing base end portions of terminals electrically connected to distal end portions of conductors of coils, the resolver structure preventing a foreign substance from passing between the housing and the insulator to enter the interior of the controller.Type: ApplicationFiled: November 12, 2010Publication date: May 30, 2013Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Hideya Nishikawa, Isao Sonoda
-
Patent number: 8446111Abstract: A motor for an electric power steering device with an integrated controller (1) includes a motor (2) and a controller (15) which controls driving of the motor (2) and has a metal case, the motor and the controller being formed integrally with each other. The motor (1) is attached to a speed reduction mechanism (23). The motor (2), the controller (15), and the speed reduction mechanism (23) are arranged in this order, in an axial direction, and in substantially coaxial relation with each other. The heat emitted from a driving substrate and the motor can be efficiently transmitted to the speed reduction mechanism.Type: GrantFiled: July 16, 2008Date of Patent: May 21, 2013Assignee: Mitsubishi Electric CorporationInventors: Isao Sonoda, Yoshihito Asao, Satoru Akutsu
-
Patent number: 8304944Abstract: A first end region of a rotating shaft of a rotor of a brushless motor is inserted through a control apparatus housing space, and is supported by a first bearing that is held by a first bearing box that is disposed on a first surface side of a base portion of a first housing that configures the control apparatus housing space, and a second end is supported by a second bearing that is held by a second bearing box that is disposed in a motor frame that configures a motor housing space. A control apparatus is disposed inside the control apparatus housing space, and an end portion of the rotating shaft that projects out through the first bearing constitutes a coupling portion.Type: GrantFiled: March 23, 2010Date of Patent: November 6, 2012Assignee: Mitsubishi Electric CorporationInventors: Isao Sonoda, Yoshihito Asao
-
Patent number: 7932651Abstract: An apparatus is provided for obtaining a compact and inexpensive motor for controller integrated electric power steering apparatus capable of reducing a component for connection and the number of man-hours of assembly, and an electric power steering apparatus. A driving substrate having a power element is arranged in the side of a speed reduction mechanism of the inside of a case of a controller and a control substrate for controlling driving of the driving substrate is arranged in the side of a motor of the inside of the case and a resolver and a lead frame having connection wiring are arranged between a motor shaft direction of the control substrate and the driving substrate and an input-output terminal of the resolver is electrically connected to the control substrate. It is placed substantially coaxially in order of a motor, the controller and a speed reduction mechanism in the motor shaft direction.Type: GrantFiled: December 24, 2008Date of Patent: April 26, 2011Assignee: Mitsubishi Electric CorporationInventors: Kengo Fujimoto, Yoshihito Asao, Satoru Akutsu, Isao Sonoda, Kazuhisa Takashima
-
Publication number: 20110067945Abstract: A first end region of a rotating shaft of a rotor of a brushless motor is inserted through a control apparatus housing space, and is supported by a first bearing that is held by a first bearing box that is disposed on a first surface side of a base portion of a first housing that configures the control apparatus housing space, and a second end is supported by a second bearing that is held by a second bearing box that is disposed in a motor frame that configures a motor housing space. A control apparatus is disposed inside the control apparatus housing space, and an end portion of the rotating shaft that projects out through the first bearing constitutes a coupling portion.Type: ApplicationFiled: March 23, 2010Publication date: March 24, 2011Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Isao Sonoda, Yoshihito Asao
-
Publication number: 20110066332Abstract: An electric power steering apparatus and control device integrated-type electric motor includes an electric motor driving circuit constituted by a plurality of semiconductor power elements and controlling electric power supplied to an armature winding of an electric motor, a switch device for opening and closing a connection between an input terminal of the electric motor driving circuit and an external power source, and another switch device for opening and closing the armature winding, wherein at least one of both the switch devices is constituted by a semiconductor switch element, and the power elements and the semiconductor switch element are mounted on a board attached to a metallic case.Type: ApplicationFiled: July 16, 2008Publication date: March 17, 2011Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Isao Sonoda, Yoshihito Asao
-
Publication number: 20100288577Abstract: A motor for an electric power steering device with an integrated controller (1) includes a motor (2) and a controller (15) which controls driving of the motor (2) and has a metal case, the motor and the controller being formed integrally with each other. The motor (1) is attached to a speed reduction mechanism (23). The motor (2), the controller (15), and the speed reduction mechanism (23) are arranged in this order, in an axial direction, and in substantially coaxial relation with each other. The heat emitted from a driving substrate and the motor can be efficiently transmitted to the speed reduction mechanism.Type: ApplicationFiled: July 16, 2008Publication date: November 18, 2010Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Isao Sonoda, Yoshihito Asao, Satoru Akutsu
-
Patent number: D664565Type: GrantFiled: April 7, 2011Date of Patent: July 31, 2012Assignee: Mitsubishi Electric CorporationInventors: Isao Sonoda, Yoshihito Asao, Katsuhiko Omae, Satoru Akutsu, Mamoru Watanabe