Abstract: A bearing condition monitoring device is a bearing condition monitoring device for monitoring a condition of a thrust bearing for holding a rotational shaft in a thrust direction. The bearing condition monitoring device includes a first temperature sensor for measuring a temperature of the thrust bearing, and an arithmetic device for counting a frequency at which an evaluation index of a thrust load on the basis of a measurement value by the first temperature sensor exceeds an allowable value, and for outputting an abnormality in the condition of the thrust bearing if the counted frequency exceeds a threshold. The arithmetic device may count, as the frequency, only a case where a state in which the thrust load exceeds an upper limit load continues for not less than a predetermined time.

Abstract: A route information storage function having decreased data storage requirements is provided in a vehicle controller that includes a processor, a first storage unit, and a second storage unit and that stores route information indicating a route to a target point. The vehicle controller includes a traveling state acquiring unit that acquires route information on a vehicle, a short-term storage information processing unit that stores the route information in the first storage unit, as short-term storage information, the route information being acquired by the traveling state acquiring unit while the vehicle is traveling, and a long-term storage information processing unit that after the vehicle has reached the target point, determines long-term storage information from short-term storage information stored in the first storage unit, the long-term storage information processing unit storing the determined long-term storage information in the second storage unit.

Abstract: A route information storage function having decreased data storage requirements is provided in a vehicle controller that includes a processor, a first storage unit, and a second storage unit and that stores route information indicating a route to a target point. The vehicle controller includes a traveling state acquiring unit that acquires route information on a vehicle, a short-term storage information processing unit that stores the route information in the first storage unit, as short-term storage information, the route information being acquired by the traveling state acquiring unit while the vehicle is traveling, and a long-term storage information processing unit that after the vehicle has reached the target point, determines long-term storage information from short-term storage information stored in the first storage unit, the long-term storage information processing unit storing the determined long-term storage information in the second storage unit.

Abstract: An object is to reduce a current detection error of a current sensor while suppressing upsizing of a power conversion device equipped with the current sensor. A power conversion device includes a power conversion circuit; a conductor to transmit current to the circuit; and a coreless current sensor to detect the current. The coreless current sensor includes: a magnetic field detection portion; and a shield portion facing the magnetic field detection portion. The conductor includes: a first conductor portion that passes through a space between the magnetic field detection portion and shield portion; and a second conductor portion connected to the first conductor portion via a first bent portion, and the first bent portion is formed such that the space between the magnetic field detection portion and shield portion is not disposed in a direction perpendicular to a face of the second conductor portion closest to the shield portion.

Abstract: An object is to reduce a current detection error of a current sensor while suppressing upsizing of a power conversion device equipped with the current sensor. A power conversion device includes a power conversion circuit; a conductor to transmit current to the circuit; and a coreless current sensor to detect the current. The coreless current sensor includes: a magnetic field detection portion; and a shield portion facing the magnetic field detection portion. The conductor includes: a first conductor portion that passes through a space between the magnetic field detection portion and shield portion; and a second conductor portion connected to the first conductor portion via a first bent portion, and the first bent portion is formed such that the space between the magnetic field detection portion and shield portion is not disposed in a direction perpendicular to a face of the second conductor portion closest to the shield portion.

Abstract: A power converter (30) comprising components of a power converter circuit, the components including switching elements (31 to 36), smoothing capacitors (37 to 39), and circuit boards (66 and 67) on which drive circuit parts for driving the switching elements are mounted, wherein the components are housed in a case (65), input power is converted and output through high-voltage terminals (69 to 79), and the high-voltage terminals (69 to 79) and the circuit boards (66 and 67) are provided in a common plane area (E).

Abstract: A power converter (30) comprising components of a power converter circuit, the components including switching elements (31 to 36), smoothing capacitors (37 to 39), and circuit boards (66 and 67) on which drive circuit parts for driving the switching elements are mounted, wherein the components are housed in a case (65), input power is converted and output through high-voltage terminals (69 to 79), and the high-voltage terminals (69 to 79) and the circuit boards (66 and 67) are provided in a common plane area (E).

Abstract: A power converter configured to be mounted on an electrically driven vehicle comprises a control board that controls a power module including a semiconductor device, a connector provided on the control board so as to be connected to an external controller, a strong electric component arranged so as to overlap the control board, and a housing that houses the control board and the strong electric component. A bottom portion of the housing is formed to swell in a convex-shaped manner, a part of the strong electric component is housed in an area of the housing that swells in the convex-shaped manner, and the strong electric component is formed so that a projection area thereof to the overlappingly arranged control board is smaller than a surface area of the control board. The connector is arranged in an area of the control board broader than a projection plane of the overlappingly arranged strong electric component to the control board.

Abstract: An electronic component casing includes: an inclined portion that projects from an upper surface so as to increase in height gradually from one side; a step portion that descends as a continuation of an upper end of the inclined portion or descends via a plane connected to the upper end; and a planar portion connected to a lower end of the step portion.

Abstract: A power converter configured to be mounted on an electrically driven vehicle comprises a control board that controls a power module including a semiconductor device, a connector provided on the control board so as to be connected to an external controller, a strong electric component arranged so as to overlap the control board, and a housing that houses the control board and the strong electric component. A bottom portion of the housing is formed to swell in a convex-shaped manner, a part of the strong electric component is housed in an area of the housing that swells in the convex-shaped manner, and the strong electric component is formed so that a projection area thereof to the overlappingly arranged control board is smaller than a surface area of the control board. The connector is arranged in an area of the control board broader than a projection plane of the overlappingly arranged strong electric component to the control board.

Abstract: An electronic component casing includes: an inclined portion that projects from an upper surface so as to increase in height gradually from one side; a step portion that descends as a continuation of an upper end of the inclined portion or descends via a plane connected to the upper end; and a planar portion connected to a lower end of the step portion.

Abstract: The arc-type evaporator of the present invention includes an anode and a cathode for generating arc discharging, a trigger electrode and a gas supply pipe. The trigger electrode is contacted with the cathode to cause a first spark, and thereafter is separated from the cathode to occur the arc discharge between the anode and the cathode. The gas supply pipe is provided independently of the trigger electrode, and supplies the cathode a reactive gas which reacts with a substance forming the cathode to produce a chemical compound. The gas supply pipe includes a gas blow-out port formed in the neighborhood of the side portion or rear side portion of the cathode to face the cathode. The reactive gas is supplied from the gas blow-out port to an area including the front surface of the cathode.