Mitsubishi Electric Corporation

Mitsubishi Denki Kabushiki Kaisha

Mitsubishi Electric Cornoration

Shell Internationale Research Maatschappij, B.v.

Masaya Inoue

Hiroyuki Akita

Moriyuki Hazeyama

Shinji Nishimura

Atsushi Sakaue

Toshiyuki Yoshizawa

Hironori Tsuiki

Shogo Okamoto

Masashi Nakamura

Masao Morita

Yoshiaki Kitta

Akira Hashimoto

Hideaki Arita

Yoshihiro Miyama

Tatsuro Hino

Tadashi Murakami

Akihiro Yamamura

Shinichiro Yoshida

Yoshihito Asao

Takeshi Mori

Kazunori Tanaka

Haruyuki Kometani

Kouichi Ojima

Masahiko Fujita

Takahiro Urakabe

Masahiro Iezawa

Yuki Yamamoto

Kenzo Makino

Akihiro Daikoku

Toshihiko Miyake

Yoshinori Miyamoto

Naoki Ohashi

Nobuhiro Kihara

Hiroshi Okuda

Hiroshi Araki

Masatsugu Nakano

Kazuhiko Baba

Hayato Yoshino

Wataru Tsujita

Tatsuya Okuda

Hitoshi Isoda

Yoshiharu Hayashi

Yoshitsugu Sawa

Takayoshi Nagai

Shigeki Harada

Hitoshi Kawaguchi

Naohide Maeda

Fumito Uemura

Hiroyuki Higashino

Mitsuharu Hashiba

Kenta Kaneko

Kanji Shinkawa

Koichi Ojima

Ryuichi Shimomura

Ryuji Kitamura

Shinsuke Kayano

Masaki Horii

Katsunari Takagi

Manabu Yoshinori

Kouki Naka

Kazuyuki Iwamoto

Norihiro Murata

Tomohiro Bessho

Shinkichi Sawa

Ken Nishikawa

Ryuichi Kitora

Yutaka Ikura

Yoshiki Kuwahara

Fumitaka Totsuka

Hiroshi Mitsuda

Yutaro Shirai

Yoichi Kuroda

Yoshiko Obiraki

Shuichi Tamura

Junji Hori

Tatsuya Kitamura

Tomoya Tachibana

Takuma Sasai

Tsunenobu Yamamoto

Kota Katsuragi

Yukitaka Sakata

Shinichi Okada

Sachiko Kawasaki

Hiroki Shiota

Naoki Itoi

Kohei Egashira

Akihiro Shimada

Hirohisa Yokota

Tatsuo Nishimura

Keiichi Ito

Soichi Sato

Takuto Yano

Tomohira Takahashi

Motoaki Kimura

Yuuya Tanaka

Daisuke Shijo

Kosho Yamane

Tetsuya Yokogawa

Koji Nishizawa

Masayoshi Maeda

Provided is a rotating electric machine. This rotating electric machine includes a stator and a rotor, and the rotor includes: a rotor core having formed therein a magnet insertion hole group; and a permanent magnet group. In the rotor core, a first magnetic slit and a second magnetic slit are formed. In the second magnetic slit, a first magnet magnetic flux guide path connecting a first q-axis magnetic path and a second q-axis magnetic path is arranged. When an angle between a straight line passing through a first intersecting point and a radial center point and a straight line passing through a second intersecting point and the radial center point is set as θ, the number of pole pairs is set as P, a natural number is set as m, and nis set as a natural number smaller than m, the following expression: θ=2π×n÷{P×(2m−1)} [rad] is satisfied.

Rotating electric machine

The rotating electric machine includes: a rotor; and a stator, wherein the rotor includes: a rotor core having a magnet insertion hole group including a plurality of magnet insertion holes; and a permanent magnet group including a plurality of permanent magnets inserted in the plurality of magnet insertion holes of the magnet insertion hole group, respectively, wherein the plurality of magnet insertion holes are arranged side by side in a shape convex toward a center of the rotor from a radially-outer side surface of the rotor core, wherein the permanent magnet group forms one magnetic pole, wherein, in a part of the rotor core between the radially-outer side surface and the magnet insertion hole group, a magnetic slit is formed to extend in a shape convex toward the center of the rotor from the radially-outer side surface, and wherein the magnet insertion hole group includes three magnet insertion holes.

Rotating electric machine with magnet insertion hole arrangement

Provided is a rotating electric machine () including a stator () and a rotor (). The rotor () includes a plurality of stages of rotor units (and) stacked in an axial direction. Each of the rotor units (and) includes a pair of permanent magnets () and slits (and) arranged in one or more rows. The slits (and) has an arc-like shape. Both ends of the arc-like shape are located on an outer periphery side of the rotor (). When an angle formed between two straight lines that connect positions of both ends of the arc-like shape and a rotation axis center of the rotor () is defined as an arc angle, at least one of the arc angle of the slit () and the number of rows of the slits is different between at least two rotor units (and).

Provided is a rotating electric machine capable of reducing oscillations and noise generated in the rotating electric machine. The rotating electric machine includes a stator, a rotor, and a frame. The rotor includes: a rotor core; and a plurality of permanent magnets, and the rotor is divided into a plurality of blocks. The plurality of blocks include: a skew-angle-increasing pair of blocks; and a skew-angle-decreasing pair of blocks. The frame includes: a body portion configured to hold the stator; and a flange portion, which projects outward from the body portion, and the body portion has a thickness that changes from one end to another end of the body portion in an axial direction thereof.

A temperature detection device includes: a detection processing unit configured to transmit a transmission radio wave, simultaneously receive a response radio wave corresponding to the transmission radio wave, and detect whether a temperature of an object to be measured is normal or abnormal based on the response radio wave; and a temperature sensing unit configured to receive the transmission radio wave and transmit the response radio wave responding to the transmission radio wave. The detection processing unit calculates, from the response radio wave received via a second antenna, an amplitude, a phase, or a quadrature phase amplitude of the response radio wave and compares the temperature of the object to be measured to a temperature determined in advance based on a result of the calculation.

Temperature detection device and temperature detection method

In a rotary electric machine, each of coils includes coil terminals led out from a coil main body. The coil terminals are connected to bus bars. When a diameter of each of the bus bars is defined as D, a diameter of a cross section of a coil wire is defined as 'd', a Young's modulus of the coil wire is defined as E, a linear expansion coefficient of a material of the bus bars is defined as &#x3b1;1, a linear expansion coefficient of a material of a stator core is defined as &#x3b1;2, and an estimated temperature difference between a room temperature and a use environment temperature is defined as &#x394;T, a length L of at least one of the coil terminals from an end on the coil main body side to a connecting portion to the bus bar satisfies the following expression:&#x2265;((3&#x3c0;(&#x3b1;1&#x2212;&#x3b1;2)&#x394;10)/10.

Rotary electric machine

A rotation angle detection device, including: a rotor; a stator including one bias magnetic field generation portion (BMFGP) and magnetic detection elements; and a rotation angle calculation processor calculating a rotation angle of the rotor from detection signals of the detection elements, wherein a surface of the rotor has convex and concave portions (CCPs), which change in 'x' ('x'&#x2265;1) cycles for a mechanical angle of 360, and a shape of the CCPs make the detection elements possible to obtain a sine wave, and wherein &#x201c;a&#x201d; (&#x201c;a&#x201d;&#x2265;2) detection elements are arranged along a circumferential direction of the stator at equal intervals for one cycle of the CCPs&#x2014;so as to be opposed to the surface of the rotor, and the BMFGP extends in the circumferential direction for one cycle of the CCPs so as to overlap with the &#x201c;a&#x201d; detection elements.

Rotation angle detection device and rotation angle detection method

According to the present invention, provided is a rotary electric machine, which is to be connected to at least one of a first torque input/output shaft and a second torque input/output shaft, and includes a stator and a rotor. The rotor of the rotary electric machine includes: a rotor core; a torque transmitting portion, which is connected to at least one of the first torque input/output shaft and the second torque input/output shaft, and is formed of a plate-shaped member; and a rotor core retaining portion, which is retained on the torque transmitting portion, is configured to retain the rotor core, and is formed of a plate-shaped member.

Rotary electric machine having torque transmitting portion and rotor core retaining portion

A rotating electrical machine includes a rotor; a stator having a core annularly arranged facing the outer peripheral surface of the rotor, a coil wound around the core and having a coil end formed protruding from an end surface in the axial direction of the core, and an insulator formed on the end surface in the axial direction of the core and insulating the core and the coil; a bus bar arranged on the outer peripheral side of the coil end of the stator; and a terminal block installed on the outer peripheral side of the bus bar for introducing an electric current from an external power source to the stator, and the insulator has a groove portion in which the bus bar is held, and a terminal block housing portion in which the terminal block is held.

Rotating electrical machine

A rotating electrical machine includes: an oil reception part that has an opening opposed to an injection hole designed to inject ATF into the atmospheric pressure inside a housing; and an oil reservoir that communicates with the oil reception part via a communicating hole provided in a wall part and communicates with a rotor cooling oil channel of a shaft via a cooling oil lead-in hole provided in the wall part. Since ATF having flowed out of the oil reception part flows along an inner face of the wall part of a second housing by gravity and reaches a bearing, one ATF supply route can be used both for cooling a rotor and lubricating a bearing, whereby the ATF supply route can be simplified.

A rotating electric machine includes a rotor, a stator, and a case, wherein each of the sub stator cores has a first insulated bobbin, a stator iron core, a second insulated bobbin, and a coil, and the coil is disposed in teeth parts of the first insulated bobbin, the stator iron core, and the second insulated bobbin, all of which are stacked in layers, and the first insulated bobbin has three ring holding parts which are formed in a core back part and extend to a circumferential direction, and the bus rings are separately inserted into the ring holding parts formed in the first insulated bobbin, and the first insulated bobbin, the stator iron core, and the second insulated bobbin each has a convex part formed at one side face of the core back part and a concave part formed at the other side face of the core back part.

A rotating electric machine apparatus including: a rotating electric machine (REM) including a rotor and a stator; an inverter device including an inverter circuit (IC) for driving the REM and an inverter control unit (ICU) for controlling the IC; a detector, in which a first antenna is connected to a resonance circuitry, which is mounted to the REM and has a resonance characteristic that changes depending on a change in a physical quantity; and a detection processor receiving a response radio wave indicating a detection result of the change in the physical quantity from the first antenna while transmitting a transmission radio wave at a set carrier frequency from a second antenna, and comparing the detection result and the set value, to thereby obtain an abnormal state in the REM. The ICU controls output of the IC in accordance with an abnormal state signal from the detection processor.

Rotating electric machine device and rotating electric machine device control method

This method includes: a coil assembly step of combining a plurality of coil units to form a coil basket; a core insertion step of inserting inner cores of in the radial direction to the coil basket; and a fixation member insertion step of inserting a fixation member to the outer circumference of the inner core. In the core insertion step, the radial-direction position of the coil basket is retained at a core insertion time position shifted outward in the radial direction relative to a normal position after armature completion, and the inner cores are inserted in the radial direction to the coil basket. After the core insertion step, the radial-direction positions of the coil basket and the inner cores are moved inward in the radial direction to the normal position after armature completion.

Method for producing armature, method for producing dynamo-electric machine, armature, dynamo-electric machine, and device for producing armature

Obtain a rotary electric machine in which attachment of a sensor stator to a case having a cylindrical shape is not required, and a stator is inserted to the case having a cylindrical shape, whereby the sensor stator can be easily arranged at the inside of the case having a cylindrical shape. The rotary electric machine includes a rotor and a sensor rotor, which are maintained to a rotary shaft and are arranged in a shaft direction of the rotary shaft; a stator which is faced to the rotor and is arranged at the inside of a case having a cylindrical shape; and a sensor stator which is supported to sensor supporting components which are provided at end portions in a shaft direction of the stator, and is faced to the sensor rotor and is arranged.

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.

Growing community of inventors

Tokyo, Japan

Masaya Inoue