Abstract: Provided is a rotating electric machine in which the coolant is efficiently circulated, thus having improved cooling performance. A rotating electric machine has a coolant pump-up mechanism provided with a motive-power transmission mechanism for transmitting rotational motive power of a rotor and an impeller which rotates via the motive-power transmission mechanism and efficiently pumps up a coolant. The motive-power transmission mechanism is provided at one end of a first shaft forming a rotation axis of the rotor and one end of a second shaft forming a rotation axis of the impeller and crossing the axial-length direction of the first shaft. In the coolant pump-up mechanism, a heat exchanger for cooling a coolant is provided at a lower part of the impeller, and through rotation of the rotor, the impeller supplies the coolant cooled by the heat exchanger to the first shaft side, thereby cooling a stator and the rotor.

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.

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.

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

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.

Abstract: An object of the present invention is to provide a PVA-based resin having a degree of saponification obtained in the middle stage of the reaction, that is, an average degree of saponification of 68 mol % to 85 mol %, a narrow degree of saponification distribution, and excellent dispersion stability. The present invention relates to a polyvinyl alcohol-based resin having an average degree of saponification of 68 mol % to 85 mol %, and a ¼ value width of 7.0 minutes or less in a degree of saponification distribution obtained by high performance liquid chromatogram measured under specific conditions.

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.

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

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.

Abstract: A rotating electrical machine cooling structure such that a cooling medium is supplied by a pump to a stator and rotor of a rotating electrical machine, thereby cooling the stator and rotor, includes a first passage that supplies the cooling medium from the pump to the stator, a second passage that supplies the cooling medium from the pump to the rotor, and a valve that regulates a flow of the cooling medium of the first passage and a flow of the cooling medium of the second passage, wherein a cooling state of the stator and a cooling state of the rotor are controlled by the valve.

Abstract: A plurality of core blocks that are arranged into an annular shape are inserted into and fixed to a cylindrical frame, and are disposed inside the frame, a bolt passage member that is produced as a solid body and that has a bolt passage aperture that passes through in a longitudinal direction is fixed by welding to an outer circumferential surface of the frame such that the longitudinal direction thereof is oriented in the axial direction of the frame, and a stator is held on the housing by fastening a bolt that is passed through the bolt passage aperture into a fixing portion that is formed on the housing.

Abstract: While lamination of steel sheets to be included in a stator core having a plurality of tooth portions is performed through swaging at yoke portions and through swaging at tooth portions, the stator core is formed in such a way as to include the tooth portion having a portion that is pressed into another steel sheet through swaging and the tooth portion having no portion that is pressed into another steel sheet through swaging.

Abstract: A sensor device includes a radio wave sensor and a signal processor. The signal processor includes an identifier and a noise remover configured to remove, from a second sensor signal, at least one frequency component determined as a noise component by the identifier. The identifier compares a signal intensity of each of the frequency components with one or more signal intensities of other frequency components. When a signal intensity of a first frequency component is greater than signal intensities of one or more second frequency components located in the vicinity of the first frequency component by an extent exceeding a threshold range, the identifier determines the first frequency component as the noise component.

Abstract: An illumination system includes a plurality of lighting fixtures, a plurality of slave devices, and an information communication terminal. Each of the plurality of slave devices includes: first wireless communication circuitry configured to receive, from each of the plurality of lighting fixtures, a signal including a MAC address of the lighting fixture, and to measure a received signal strength indication (RSSI) of the signal received; and a first controller that causes the first wireless communication circuitry to transmit the MAC address and RSSI information indicating the RSSI measured. The information communication terminal includes a second controller that makes associations between positions and MAC addresses of the plurality of lighting fixtures based on the RSSI information and position information stored in a storage.

Abstract: A luminaire includes a radio wave sensor and a luminaire body. The luminaire body includes a first plate to be attached to a building surface and a second plate facing each other forming an internal space. The luminaire body holds the radio wave sensor between the first plate and the second plate. The radio wave sensor includes an antenna for transmitting and receiving the radio waves. The luminaire body includes an opening and a limiter. The opening is formed in the second plate to allow radio waves transmitted from the antenna to exit to an outside of the luminaire body. The limiter is provided between the antenna and the opening to limit a radiation area of the radio waves transmitted from the antenna.

Abstract: Provided is a fixing structure for fixing a wire connection plate including a busbar (9) having an annular shape, and a wire connection plate holder (10) for holding the busbar (9). The fixing structure includes a frame (5) having a cylindrical shape, for accommodating the wire connection plate therein, and a sheet metal member (12) for fixing the wire connection plate. One end of the sheet metal member (12) is fixed on a flange (4) of the frame (5), and another end of the sheet metal member (12) presses an end surface of the wire connection plate in an axial direction of the frame (5), to thereby fix the wire connection plate. The wire connection plate is fixed by elasticity of the sheet metal member (12), and hence the wire connection plate can be held even under application of impact load.

Abstract: An illumination system includes a plurality of lighting fixtures, a plurality of slave devices, and an information communication terminal. Each of the plurality of slave devices includes: first wireless communication circuitry configured to receive, from each of the plurality of lighting fixtures, a signal including a MAC address of the lighting fixture, and to measure a received signal strength indication (RSSI) of the signal received; and a first controller that causes the first wireless communication circuitry to transmit the MAC address and RSSI information indicating the RSSI measured. The information communication terminal includes a second controller that makes associations between positions and MAC addresses of the plurality of lighting fixtures based on the RSSI information and position information stored in a storage.

Abstract: An electric rotating machine that can raise the utilization efficiency of cooling oil is obtained. In an rotation axle, there are provided an oil flow path having a predetermined length from an end of the rotation axle and a flow path hole that communicates with the oil flow path and has an opening toward the inside of the electric rotating machine; a supporting member includes a cylinder section and a disk section that partitions the cylinder section in the axis direction, and a discharging hole is provided at an end of the cylinder section; between the flow path hole and the discharging hole, there is provided a partition plate that encloses a space formed by the supporting member and the rotation axle and guides cooling oil traveling from the flow path hole to the inside of the electric rotating machine to the discharging hole.

Abstract: Provided is an electric motor capable of cooling a stator without being increased in size with a small number of components and even with simple work. The electric motor includes ring-shaped sealing members (34) having flexibility and being arranged on an inner diameter side of a stator coil (22) so as to surround inner diameter portions of coil ends. Cooling oil flowing from an upper part of a housing into the housing flows downward through coil end oil paths (37, 38) formed by the sealing members (34), coil end covers (32, 33), and the coil ends.

Abstract: A rotating electrical machine cooling structure such that a cooling medium is supplied by a pump to a stator and rotor of a rotating electrical machine, thereby cooling the stator and rotor, includes a first passage that supplies the cooling medium from the pump to the stator, a second passage that supplies the cooling medium from the pump to the rotor, and a valve that regulates a flow of the cooling medium of the first passage and a flow of the cooling medium of the second passage, wherein a cooling state of the stator and a cooling state of the rotor are controlled by the valve.