Abstract: A soft magnetic powder including a first particle group including particles having a particle size of D50 or more and a second particle group including particles having a particle size of less than D50. An average value of circularities of the particles belonging to the first particle group is defined as a first average circularity C1, and an average value of circularities of the particles belonging to the second particle group is defined as a second average circularity C2, and C1<C2 is satisfied.

Abstract: A battery management system for electric vehicles includes electric vehicles each including a battery to supply electric power to a driving motor and an information processor to communicate with the electric vehicles. The electric vehicles each include a degradation state detector to detect a degradation state of the battery, and a usage state detector to detect a usage state of the battery. The information processor include a battery information storage to store information about the degradation state and the usage state of the battery, a degradation state estimator to estimate a future degradation state of the battery of a specific electric vehicle, based on the information stored in the battery information storage, and a vehicle control changer to change control of a certain electric vehicle to delay degradation of the battery if the future degradation state of the battery is estimated to deteriorate by a predetermined amount or greater.

Abstract: A heater apparatus includes a base member, a cover member supported by the base member, a cloth member provided between the base member and the cover member to hold a heater wire, and a heater temperature sensor brought into contact with the cloth member, covered on a base member side facing the base member and a cover member side facing the cover member with the cloth member, and configured to detect a temperature of the heater wire. The cover member has a cover recessed portion recessed towards the base member in an overlapping region where the cloth member on the base member side and the cloth member on the cover member side of the heater temperature sensor overlap.

Abstract: A battery management system for electric vehicles includes electric vehicles each including a battery to supply electric power to a driving motor and an information processor to communicate with the electric vehicles. The electric vehicles each include a degradation state detector to detect a degradation state of the battery, and a usage state detector to detect a usage state of the battery. The information processor include a battery information storage to store information about the degradation state and the usage state of the battery, a degradation state estimator to estimate a future degradation state of the battery of a specific electric vehicle, based on the information stored in the battery information storage, and a vehicle control changer to change control of a certain electric vehicle to delay degradation of the battery if the future degradation state of the battery is estimated to deteriorate by a predetermined amount or greater.

Abstract: A vehicle power supply apparatus includes a battery, a power supply line, a power control unit coupled to the battery via the power supply line, a first main switch provided on a positive power supply line, a second main switch provided on a negative power supply line, a precharge resistor and a resistor switch coupled together in series on a bypass line that bypasses the positive power supply line and the negative power supply line, and a service plug to be brought into either one of a power supply state in which electric power is supplied from the battery to the power control unit and an interrupted state in which the supply of the electric power is interrupted. When the service plug is brought into the interrupted state, the resistor switch is brought into conduction to cause a current to flow from the battery to the precharge resistor.

Abstract: A vehicle power supply apparatus includes a battery, a power supply line, a power control unit coupled to the battery via the power supply line, a first main switch provided on a positive power supply line, a second main switch provided on a negative power supply line, a precharge resistor and a resistor switch coupled together in series on a bypass line that bypasses the positive power supply line and the negative power supply line, and a service plug to be brought into either one of a power supply state in which electric power is supplied from the battery to the power control unit and an interrupted state in which the supply of the electric power is interrupted. When the service plug is brought into the interrupted state, the resistor switch is brought into conduction to cause a current to flow from the battery to the precharge resistor.

Abstract: A rotary electric machine comprises a rotor core and a plurality of permanent magnets embedded in the rotor core along a circumferential direction of the rotor core. The rotor core includes a magnetic pole portion disposed between two permanent magnets adjoining along the circumferential direction of the rotor core. The magnetic pole portion includes a circular arc surface whose cross-sectional shape in a direction perpendicular to an axial direction of the rotor core is a circular arc shape differing in curvature from an outer circumferential circle which is a circumference of a maximum outer diameter portion of the rotor core.

Abstract: A heater apparatus includes a base member, a cover member supported by the base member, a cloth member provided between the base member and the cover member to hold a heater wire, and a heater temperature sensor brought into contact with the cloth member, covered on a base member side facing the base member and a cover member side facing the cover member with the cloth member, and configured to detect a temperature of the heater wire. The cover member has a cover recessed portion recessed towards the base member in an overlapping region where the cloth member on the base member side and the cloth member on the cover member side of the heater temperature sensor overlap.

Abstract: A vehicle includes a secondary battery, a power receiver, a charger, a heat generator, and a battery temperature raising unit. The power receiver receives an electromagnetic wave to generate electric power. The charger charges the secondary battery by using the electric power generated by the power receiver. The heat generator receives the electromagnetic wave to generate heat. The battery temperature raising unit raises temperature of the secondary battery by using the heat generator as a heat source. A part of a heat generation band, which is a frequency band of the electromagnetic wave in which the heat generator has an increased heat generation efficiency, does not overlap a power generation band, which is a frequency band of the electromagnetic wave in which the power receiver has an increased power generation efficiency, and a part of the power generation band does not overlap the heat generation band.

Abstract: An IPM motor for a vacuum pump suitable for use as a motor for a small vacuum pump is provided. The IPM motor for a vacuum pump includes: a rotor core in which a rotor shaft of the vacuum pump is pressed and which also has magnets embedded therein; and a stator core which surrounds the rotor core and around which stator windings are wound. The magnets per pole embedded in the rotor core are each split into two pieces and inserted in respective magnet slots in the rotor core. A hole for stress concentration relaxation is provided at either end of each pair of magnet slots in which permanent magnets split into two pieces are embedded in each pole. The rotor core has a multilayer structure having a plurality of rotor core laminations stacked vertically in an axial direction of the rotor shaft. The rotor core laminations stacked vertically are positioned with a skew angle determined by using the holes for stress concentration relaxation.

Abstract: An onboard battery for a vehicle includes battery modules each including battery cells, an auxiliary device for charging, and a housing case housing the battery modules and auxiliary device. Cooling air is taken from air intake holes into the battery modules to cool the battery cells. A middle of a transversal direction of the battery modules is shifted to either left or right of a center of a transversal direction of a vehicle. The auxiliary device is disposed at an other end portion in the transversal direction. Each air intake hole is between a left and right end of each battery module and in a back of each battery module. A side opposite to a side of the auxiliary device has an air introducing port 55a that takes cooling air into the housing case.

Abstract: A synthetic resin plate (1) includes a plurality of accommodating parts (2) which accommodate at least one of bus bars, terminals, and electric wires which are connected to the terminals, hinges (7) which make first accommodating parts and second accommodating parts of the accommodating parts (2) connected and relatively movable, and projecting parts which are provided on the top surfaces of peripheral wall parts of the first accommodating parts, and which abut against parts of the second accommodating parts to restrict the movable ranges in the movable directions of the second accommodating parts relative to the first accommodating pans.

Abstract: An electricity storage device includes: a first battery stack (15) including a plurality of cells that are aligned in a first direction; a second battery stack (11 to 14) including a plurality of cells that are aligned in a second direction different from the first direction, the second battery stack being placed under the first battery stack; and a duct for coolant. The duct is disposed along the first battery stack and is positioned between the first battery stack and the second battery stack.

Abstract: A rotary electric machine comprises a rotor core and a plurality of permanent magnets embedded in the rotor core along a circumferential direction of the rotor core. The rotor core includes a magnetic pole portion disposed between two permanent magnets adjoining along the circumferential direction of the rotor core.

Abstract: An onboard battery includes an accommodation case that has a hollow cross section formed with multiple cavities 9a, and at least one battery module that has at least one battery cell and is accommodated in the accommodation case. At least one disposition depression that communicates with one of the multiple cavities and is opened upward is formed in a portion positioned below the at least one battery module in the accommodation case, and at least one heater that heats the at least one battery cell is disposed in the at least one disposition depression so as not to be in contact with the at least one battery cell.

Abstract: Provided are: a first-group accommodation part (21) and a second-group accommodation part (22) in each of which accommodation parts (2) each of which accommodates at least one of a bus bar (3), a terminal (4), and an electric wire (5) connected to the terminal (4) are arranged; a linkage part (8) linking the first-group accommodation part (21) and the second-group accommodation part (22) to each other; and an electric wire routing part (9) provided in the linkage part (8) and accommodating the electric wires (5).

Abstract: To provide a protective bearing, a bearing unit, and a vacuum pump that are configured to prevent a touchdown bearing from co-rotating with the rotation of a rotor that is supported in a levitated state and a non-contact state. Slits are formed in the radial direction at four sections on the inner side of a securing member. A pair of permanent magnets of the same polarity is fixed to the upper surface of each of the four regions partitioned by the slits. The inner rim of the securing member has projections that are formed circumferentially downward. An attractive force is generated between an outer ring and an inner ring. An attractive force is also generated between the projections projecting toward the inner end of the securing member and the inner ring. Due to this configuration, even when a rotational torque is applied to the inner ring of the touchdown bearing as a result the rotation of the rotating body, co-rotation of the inner ring does not occur due to a large holding torque.

Abstract: An onboard battery for a vehicle includes battery modules each including battery cells, an auxiliary device for charging, and a housing case housing the battery modules and auxiliary device. Cooling air is taken from air intake holes into the battery modules to cool the battery cells. A middle of a transversal direction of the battery modules is shifted to either left or right of a center of a transversal direction of a vehicle. The auxiliary device is disposed at an other end portion in the transversal direction. Each air intake hole is between a left and right end of each battery module and in a back of each battery module. A side opposite to a side of the auxiliary device has an air introducing port 55a that takes cooling air into the housing case.

Abstract: An onboard battery includes an accommodation case that has a hollow cross section formed with multiple cavities 9a, and at least one battery module that has at least one battery cell and is accommodated in the accommodation case. At least one disposition depression that communicates with one of the multiple cavities and is opened upward is formed in a portion positioned below the at least one battery module in the accommodation case, and at least one heater that heats the at least one battery cell is disposed in the at least one disposition depression so as not to be in contact with the at least one battery cell.

Abstract: Provided are: a first-group accommodation part (21) and a second-group accommodation part (22) in each of which accommodation parts (2) each of which accommodates at least one of a bus bar (3), a terminal (4), and an electric wire (5) connected to the terminal (4) are arranged; a linkage part (8) linking the first-group accommodation part (21) and the second-group accommodation part (22) to each other; and an electric wire routing part (9) provided in the linkage part (8) and accommodating the electric wires (5).