Abstract: Noise generated from some air leaking from a water drain hole formed in an exhaust duct is reduced. A first water drain hole for exhausting liquid that has collected within the exhaust duct to outside the exhaust duct is formed in a bottom face of the exhaust duct for exhausting air after cooling a battery stack and a second water drain hole for exhausting liquid, which was exhausted from the first water drain hole, to outside a lower case is formed in the lower case housing the battery stack and the exhaust duct, with the second water drain hole formed at a position not on a line extending from the direction of outflow of air leaking out from the first water drain hole.

Abstract: Noise generated by driving a relay provided on a battery pack is suppressed. A negative relay is fixed onto top of a bottom face and an inner side surface of a lower case of the battery pack via multiple mounting points formed on an L-shaped fixture. The center of gravity of the negative relay is located within a polygon having the mounting points as vertices.

Abstract: A battery pack has a battery stack built therein. A case for the battery pack includes an upper case and a lower case. The upper case is not flat, but forms an arch shape having a curved surface. The upper case has a chamber space formed above the built-in battery stack, and cooling air taken in through an air intake port is supplied to the chamber space. The upper case formed in the shape of an arch prevents deformation of the chamber space against a load applied from above, and adjusts the cooling properties of the battery stack.

Abstract: A battery pack to be mounted in a vehicle incorporates a battery stack and a cooling fan. An air intake is formed in a side face located in the vicinity of the cooling fan. In consideration of passengers entering and exiting the vehicle, the air intake is formed as well in a plane generated as a result of removal of a corner. A louver for preventing intrusion of extraneous matter is disposed at the front of the air intake. A decrease in the amount of cooling air induced by the louver is lessened by means of forming the air intake in the plane.

Abstract: A battery pack to be mounted on a vehicle. The battery pack has a battery stack. A cooling fan, a fan relay, and a main relay (?) are disposed on one side of the battery stack. A control module, a register, a main relay (+), and a pre-charge relay are disposed on the other side of the same. As a result of devices being disposed on both sides of the battery stack, the weight of the battery pack is adjusted to the neighborhood of the center of the battery pack.

Abstract: In a power source device including a battery pack, a safety switch is provided between a given pair of battery modules connected to each other. The safety switch connects and disconnects those battery modules by insertion and removal of a safety plug to/form a switch body. The power source device also includes an insertion prevention unit, such as a lock, for preventing the insertion of the safety plug to the switch body in such a manner that prevention of the insertion of the safety plug is releasable. A release operation unit is kept by a worker who removes the safety plug, so that safety of the worker against electric shock is ensured.

Abstract: A battery pack comprises a plurality of rectangular shaped batteries, wherein each of the plurality of rectangular shaped batteries is formed into a thin rectangular-parallelepiped shape, and wherein the plurality of rectangular shaped batteries are stacked side-by-side in a thickness direction, and a pair of pressurizing plates, wherein one of the pressurizing plates is located at each end of the stacked rectangular shaped batteries oriented in the thickness direction, wherein the pressurizing plates are elastically pushed against each other to pressurize the plurality rectangular shaped batteries.

Abstract: In a power source device including a battery pack, a safety switch is provided between a given pair of battery modules connected to each other. The safety switch connects and disconnects those battery modules by insertion and removal of a safety plug to/form a switch body. The power source device also includes an insertion prevention unit, such as a lock, for preventing the insertion of the safety plug to the switch body in such a manner that prevention of the insertion of the safety plug is releasable. A release operation unit is kept by a worker who removes the safety plug, so that safety of the worker against electric shock is ensured.

Abstract: A fan structure is provided, which includes: a fan case having an inlet and an outlet; a bladed wheel provided inside the fan case; a motor for rotating the bladed wheel; a circuit substrate for controlling the motor; and a scroll housing formed between the fan case and the bladed wheel. Rotation of the bladed wheel causes a fluid to enter the scroll housing from the inlet and to exit from the outlet. The circuit substrate and the motor are arranged inside the fan case. The fan structure further includes a waterproof member for dividing the motor and the circuit substrate from the scroll housing, and a cylindrical seal for sealing a hole formed in the waterproof member through which an output shaft of the motor extends. The fan structure is compact and prevents adhesion of salt, water, or dust to the built-in circuit substrate.

Abstract: The combined battery of the present invention includes two end plates and a plurality of general cells stacked adjacent each other and bound by two end plates. The general cells are provided with a battery container made of resin, and bound by two end plates with a binding force equal to or lower than a threshold value determined based on the number and the compressibility of the cells and the stiffness of the battery container, in such a manner that no more than a predetermined amount of irreversible deformation will be caused in the battery container.

Abstract: On the opposite end walls of a flat, prismatic battery case of a battery module where electrode terminals are attached, protruding components are formed such as to protrude further than the electrode terminals. Terminal holes are formed in the end walls in which the electrode terminals are fitted, and the thickness of the end walls of the integral battery case in the vicinity of the terminal holes is not the same on both sides of each of the terminal holes. Also, one or a plurality of vertical and horizontal ribs are formed on the end walls between the electrode terminals and the protruding components. Further, a sealing structure is included for a battery.

Abstract: The combined battery of the present invention includes two end plates and a plurality of general cells stacked adjacent each other and bound by two end plates. The general cells are provided with a battery container made of resin, and bound by two end plates with a binding force equal to or lower than a threshold value determined based on the number and the compressibility of the cells and the stiffness of the battery container, in such a manner that no more than a predetermined amount of irreversible deformation will be caused in the battery container.

Abstract: A battery pack includes a plurality of prismatic batteries including an electrode plate group and electrolyte housed in a prismatic battery case and being arranged in parallel and integrally bound. A metal plate is integrally embedded in the sidewall of the prismatic battery which is in parallel with the electrode plate group. A heat transfer part protruding from the prismatic battery case is provided at least one side of the metal plate. A heat exchanger is provided such that a heat exchanging surface of the heat exchanger is brought into contact with the heat transfer part protruding from the prismatic battery case of the prismatic battery. Then, the battery pack and the heat exchanger are fixed.

Abstract: The battery pack is constituted by arranging a plurality of prismatic battery modules adjacently in a condition with coolant passages formed between battery modules and with their side faces of large area being arranged in superimposed manner, and are integrated by tying end plates, arranged at both ends in the direction of arrangement of battery modules tightly together by restraining straps. A plurality of restraining straps are arranged at suitable intervals on the long side face of a battery pack and the restraining straps are constituted of at least one strip of rectangular cross-sectional shape or by round rods or pipe members of circular cross-sectional shape whose dimension in the direction perpendicular to the long side face of battery pack is larger than the dimension in the parallel direction.

Abstract: A plurality of prismatic cell cases having short lateral walls and long lateral walls are coupled together such that each of the short lateral walls of these cell cases is common to two adjacent cell cases as partitions, thereby constituting an integral battery case of a battery module. Each of the cell cases respectively accommodating therein elements for electromotive force, and electrode connecting terminals of positive and negative polarities are arranged at lengthwise opposite ends of the battery module. A large number of projections are formed dispersedly on both side faces of the battery module for forming coolant passages between two battery modules when butted with corresponding plurality of projections formed on both sides of an adjacent battery module. The height of the projections positioned opposite the partitions in the integral battery case is set lower than the height of the other projections.

Abstract: A battery pack includes a plurality of prismatic batteries including an electrode plate group and electrolyte housed in a prismatic battery case and being arranged in parallel and integrally bound. A metal plate is integrally embedded in the sidewall of the prismatic battery which is in parallel with the electrode plate group. A heat transfer part protruding from the prismatic battery case is provided at least one side of the metal plate. A heat exchanger is provided such that a heat exchanging surface of the heat exchanger is brought into contact with the heat transfer part protruding from the prismatic battery case of the prismatic battery. Then, the battery pack and the heat exchanger are fixed.

Abstract: A battery pack comprises a plurality of rectangular shaped batteries, wherein each of the plurality of rectangular shaped batteries is formed into a thin rectangular-parallelepiped shape, and wherein the plurality of rectangular shaped batteries are stacked side-by-side in a thickness direction, and a pair of pressurizing plates, wherein one of the pressurizing plates is located at each end of the stacked rectangular shaped batteries oriented in the thickness direction, wherein the pressurizing plates are elastically pushed against each other to pressurize the plurality rectangular shaped batteries.

Abstract: A battery pack is constructed with a plurality of battery modules. Each battery module comprises a plurality of prismatic cell cases having short lateral walls and long lateral walls and respectively accommodating elements for electromotive force, these cells being mutually coupled sharing their short lateral walls as partition walls, thereby constituting an integral battery case. Electrode terminals of positive and negative polarities are arranged at longitudinal opposite ends of the integral battery case. Projections and indentations for positioning the plurality of battery modules when coupling them together with their long side faces abutted each other to constitute the battery pack are formed substantially in the center of given cell cases positioned symmetrical with respect to the centerline in the lengthwise direction of the battery module.

Abstract: The combined battery of the present invention includes two end plates and a plurality of general cells stacked adjacent each other and bound by two end plates. The general cells are provided with a battery container made of resin, and bound by two end plates with a binding force equal to or lower than a threshold value determined based on the number and the compressibility of the cells and the stiffness of the battery container, in such a manner that no more than a predetermined amount of irreversible deformation will be caused in the battery container.

Abstract: A plurality of prismatic battery modules, each having a positive electrode connecting terminal and a negative electrode connecting terminal are arranged at opposite ends thereof, in a row such that the positive and negative electrode connecting terminals are directed alternately in opposite directions, thereby constituting a battery pack. A first and a second connection modules disposed at either end of the battery pack for connecting the battery modules in series are constituted by mutually linking, in a relatively displaceable manner, module connectors that comprise metal connection elements integrally held in a resin frame.