Abstract: A cooling system of an embodiment includes a container having a first wall and a second wall intersecting the first wall; a housing accommodated in the container and including a plurality of racks juxtaposed to one another in a first direction being away from the first wall; a plurality of modules that generates heat, and is supported by the corresponding racks and placed in a row in a second direction intersecting the first direction and along the second wall; an opening through which air for cooling the modules flows into the container; and an air injection passage and an air discharge passage extending between the housing and the second wall and between the housing and an opposite side. The housing is provided with an intermediate passage extending between the injection passage and the discharge passage. The opening is juxtaposed to the injection passage in the second direction.

Abstract: An induction motor includes a stator generating a magnetic field and a rotor driven by the magnetic field. Conductive bars are inserted into slots in a core on a rotating shaft. A first and second rings respectively are connected to one and the other ends of the conductive bars. Gaps are formed between the core and the first or second ring. The conductive bars are connected to the first or second ring across the gaps from the slots. A section of each conductive bar perpendicular to a longitudinal direction thereof is a polygon having a first surface on the outer circumference side of the rotor, a second surface on the inner circumference side thereof, side surfaces between the first and second surfaces, and inclined surfaces between the first surface and the side surfaces in the gaps and inclined with respect to the first surface and the side surfaces.

Abstract: According to an embodiment, a wiring board includes an insulating board including a heat transfer region made of silicon nitride and having a thickness in a range between 0.2 mm and 1 mm; and a wiring layer including a pad stacked on the heat transfer region and made of a metal material having a thickness of 1.5 mm or more.

Abstract: According to an embodiment, a liquid cooled electric motor includes a case; a rotator including a rotation shaft and a rotator core secured to the rotation shaft; a stator opposed to an outer circumference of the rotator core; a cooling portion provided around a stator core and configured to allow a liquid coolant to flow therein; a ventilation duct provided on an outer side of the case and configured to communicate first opening and second opening of the case with each other; a rotator fan mounted on the rotation shaft to be rotatable with the rotation shaft; a heat exchanger provided in the ventilation duct; and a cooling system configured to supply the liquid coolant to the cooling portion and the heat exchanger.

Abstract: According to one embodiment, a natural circulation type cooling apparatus includes a heat receiver with a heat receiving surface on which an exothermic body is mounted, and containing therein a coolant, a condenser on a horizontally lateral side of the heat receiver, a radiator on a horizontally lateral side of the heat receiver and on a vertically downward side of the condenser, a vapor conduit configured to feed vapor of the coolant to an inlet of the condenser, a condensed liquid conduit configured to feed a condensed coolant from an outlet of the condenser to an inlet of the heat receiver, a coolant conduit configured to feed the coolant to an inlet of the radiator, and a circulation conduit configured to feed the coolant from an outlet of the radiator to the inlet of the heat receiver.

Abstract: According to one embodiment, a vehicle drive apparatus configured to drive a vehicle includes a motor arranged on a bogie to drive a wheel, a cooling fan arranged to be rotatable integrally with a rotational shaft of the motor to cool the motor, a control device arranged under a floor of the body to face the bogie and configured to supply an electric power to the motor and control the motor, and a ventilation duct arranged between the motor and the control device and configured to guide a cooling wind blown by the cooling fan into the control device.

Abstract: An electric motor is disclosed that includes a first electric motor frame; a second electric motor frame positioned outside the first electric motor frame; a first ventilation path between the first frame and the second frame; and a first ventilation path fan installed within the first ventilation path. The first ventilation path fan can be integral with a shaft of the electric motor. The first ventilation path can be at least partially defined by the first and second electric motor frame. The electric motor of Claim 1 further comprising a control apparatus attached outside of the second frame. The electric motor can also include a second ventilation path between the control apparatus and the second frame wherein the second ventilation path is in communication with the first ventilation path. The electric motor can also include a second ventilation path fan located in the second ventilation path.

Abstract: A gas exhaust structure of a battery includes a rupture valve formed in a battery body, and a pipe unit composed by integrating a coupling pipe and an exhaust pipe with each other. A one-side opening of the coupling pipe is coupled to the rupture valve. The exhaust pipe is coupled to an other-side opening of the coupling pipe, guides gas that spouts out from an inside of the battery body through the rupture valve and the one-side opening of the coupling pipe, and exhausts the gas to an outside. The exhaust pipe is arranged to be offset with respect to the rupture valve without allowing an extended line that passes through a center of the rupture valve and a centerline of the exhaust pipe to be perpendicular to each other.

Abstract: A battery pack device of an embodiment includes a battery module, a casing, an air inlet, an air outlet, and a ventilation channel. In the battery module, a plurality of battery cells stacked one on another are disposed. The casing is installed while housing the battery module therein. The air inlet is provided in the casing and lets an outside air into the casing. The air outlet is provided in the casing, disposed at a position higher than a position of the air inlet, and lets the air out of the casing. The ventilation channel, in the casing, connects the air inlet and the air outlet, and inclines with respect to a horizontal direction.

Abstract: According to one embodiment, a vehicle drive apparatus configured to drive a vehicle includes a motor arranged on a bogie to drive a wheel, a cooling fan arranged to be rotatable integrally with a rotational shaft of the motor to cool the motor, a control device arranged under a floor of the body to face the bogie and configured to supply an electric power to the motor and control the motor, and a ventilation duct arranged between the motor and the control device and configured to guide a cooling wind blown by the cooling fan into the control device.

Abstract: A totally enclosed type main drive motor for a vehicle includes a stator core arranged on an inner circumference of an outer casing frame, a bracket arranged on one end of the outer casing frame to have a bearing built-in, a housing arranged on the other end of the outer casing frame to have a bearing built-in, a rotor shaft having its both ends supported by the respective bearings, a rotor core arranged on the rotor shaft, a fan arranged on one end of the rotor shaft, openings formed in both axial ends of a peripheral wall of the outer casing frame, connective air ducts arranged outside the peripheral wall so as to communicate with the openings and a cooler for connecting these connective air ducts with each other and also releasing heat of air flowing in the connective air ducts to outside air. The outer casing frame is attached to the vehicle so that a central axis of the outer casing frame extends horizontally and intersects with a traveling direction of the vehicle at right angles.

Abstract: A gas exhaust structure of a battery includes a rupture valve formed in a battery body, and a pipe unit composed by integrating a coupling pipe and an exhaust pipe with each other. A one-side opening of the coupling pipe is coupled to the rupture valve. The exhaust pipe is coupled to an other-side opening of the coupling pipe, guides gas that spouts out from an inside of the battery body through the rupture valve and the one-side opening of the coupling pipe, and exhausts the gas to an outside. The exhaust pipe is arranged to be offset with respect to the rupture valve without allowing an extended line that passes through a center of the rupture valve and a centerline of the exhaust pipe to be perpendicular to each other.

Abstract: There is provided a battery apparatus mounted in a vehicle that is not subjected to forced draft, the battery apparatus including a plurality of rectangular parallelepiped batteries stacked in a direction vertical to a traveling direction of the vehicle, a rectangular parallelepiped battery box that accommodates the plurality of rectangular parallelepiped batteries therein, and a heat equalizing plate that is brought into contact with the plurality of rectangular parallelepiped batteries.

Abstract: A conveyor apparatus is provided that is free of a pulsing motion in the circulating chains so as to provide a comfortable ride quality on its steps. The conveyor apparatus includes a step guide rail, a plurality of steps, a step chain, and a chain driving mechanism for driving the step chain. The chain driving mechanism includes a rotating and driving unit, a driving sprocket which is rotated by a driving force given by the rotating and driving unit, and a circulating chain for giving a thrust to the step chain. The circulating chain has chain links and hinges that are to be connected to the adjacent chain links. The chain link includes a placing surface on which the step roller is placed, and pressing surfaces that are in contact with step rollers.

Abstract: A battery module includes a plurality of batteries provided adjacent to one another. Each battery includes a case, which has a frame-shaped peripheral wall having open ends and a sidewall provided at one end of the peripheral wall, and a cell which is contained in the case and exposed at the other end of the peripheral wall. In two adjacent batteries of the batteries, the other end of a peripheral wall of one battery and one end of a peripheral wall of the other battery are opposed to each other.

Abstract: A battery pack provided with a battery module including a projection, a support which holds the respective projections of a plurality of the battery modules disposed so that the projections are arranged in a straight line, and a fixing member for fixing the support to the projections.

Abstract: A battery module provided with a cell which contains an electrode group and a non-aqueous electrolyte and a case including a cell containing portion which contains the cell and a hollow portion which communicates with the cell containing portion and configured so that an outlet is formed in each of a pair of sidewalls thereof which face each other with the hollow portion therebetween.

Abstract: There is provided a conveyor apparatus free of pulsing motion in circulating chains to provide a comfortable ride quality on steps. A conveyor apparatus 1 includes a step guide rail 3, a plurality of steps 5, a step chain 4, and a chain driving mechanism 10 for driving the step chain 4. The chain driving mechanism 10 includes a rotating and driving unit 11, a driving sprocket 12 which is rotated by a driving force given by the rotating and driving unit 11, and circulating chain 13 for giving a thrust to the step chain 4. The circulating chain 13 has chain links 13a and hinges 13b to be connected to the adjacent chain links 13a. The chain link 13a includes a placing surface 13c on which the step roller 4b is placed, and pressing surfaces 13d and 13d that are in contact with step rollers 4b.

Abstract: A totally enclosed type main drive motor for a vehicle includes a stator core arranged on an inner circumference of an outer casing frame, a bracket arranged on one end of the outer casing frame to have a bearing built-in, a housing arranged on the other end of the outer casing frame to have a bearing built-in, a rotor shaft having its both ends supported by the respective bearings, a rotor core arranged on the rotor shaft, a fan arranged on one end of the rotor shaft, openings formed in both axial ends of a peripheral wall of the outer casing frame, connective air ducts arranged outside the peripheral wall so as to communicate with the openings and a cooler for connecting these connective air ducts with each other and also releasing heat of air flowing in the connective air ducts to outside air. The outer casing frame is attached to the vehicle so that a central axis of the outer casing frame extends horizontally and intersects with a traveling direction of the vehicle at right angles.

Abstract: To provide an electric rolling stock driving apparatus allowing for an enhanced reliability of rolling stock system, a main motor 14 for driving an electric rolling stock, a VVVF inverter 13 for driving the main motor, and a brake controller 12 for controlling braking forces of wheels 16 are provided within a driving truck 9, allowing for an improvement in reliability of a rolling stock system that otherwise might have deficiencies such as an increased rolling stock manufacture term or an increased trouble restoration time by a complicated implementation of wiring due to an arrangement according to a relevant art in which, for driving a rolling stock, associated apparatuses are separately mounted to a car body and a truck.