Abstract: A battery pack includes: a plurality of battery cells; a case main body provided with an opening; a cover that is attached to the case main body so as to close the opening and that forms, together with the case main body, a space for accommodating the plurality of battery cells; and a plate member having a first portion and a second portion, the first portion being disposed between each of the plurality of battery cells and the cover in the space, the second portion being provided at a peripheral edge of the first portion, the second portion being sandwiched by the case main body and the cover, the plate member being composed of a metal or ceramic.

Abstract: A battery pack includes: a cover that is attached to a case main body and that forms a space accommodating a plurality of battery cells; a plate member disposed between the plurality of battery cells and the cover; and a gasket sandwiched by the case main body and the cover. The plurality of battery cells are disposed in a frame to form a cell assembly, the frame having a rectangular shape in which a second direction corresponds to a long-side direction and a third direction corresponds to a short-side direction when viewed in a first direction orthogonal to a top surface of an exterior package facing the plate member. The plate member has an inclined portion, the inclined portion being inclined such that a distance between the top surface and the inclined portion is decreased in a direction toward an end portion of the cell assembly in the third direction.

Abstract: A battery pack includes a plurality of battery modules, and a case body forming a space where the plurality of battery modules are housed. The case body includes a bottom portion, a side portion erected from the bottom portion and surrounding the space, a boss portion joined to the side portion outside of the space and used to fasten the case body, and a rib portion extending between the plurality of battery modules adjacent to each other and joined to the side portion in the space. The boss portion and the rib portion are opposite to each other with the side portion interposed therebetween.

Abstract: A power supply device disposes an end plate at each end of a battery stack in a stacked direction of the battery stack, and couples a binding bar to the end plate, so as to fix battery cells. The binding bar includes a plate-shaped bar that extends in the stacked direction of the battery stack, and an engagement block that is fixed to the plate-shaped bar and protrudes as a face opposing an outer peripheral face of the end plate. The End plate includes a fitting part to which the engagement block is guided, and a stopper. The fitting part is disposed on the outer peripheral face of the end plate. The stopper is disposed closer to the battery stack with respect to the fitting part, and abuts the engagement block.

Abstract: Power supply device includes a plurality of secondary battery cells having a flat rectangular parallelepiped shape, a pair of end plates covering both end faces of battery stack having the plurality of secondary battery cells stacked on each other, and a plurality of fastening members for fastening end plates to each other. Each of the plurality of fastening members has a plate shape extending along the stacking direction of the plurality of secondary battery cells and is disposed on a corresponding one of opposite surfaces of battery stack. Through holes are formed in both ends of each plate shape. Each of the pair of end plates includes pipe portions inserted into the through holes of a pair of fastening members disposed on opposite surfaces of battery stack among the plurality of fastening members.

Abstract: A power supply device includes: a plurality of secondary battery cells; a pair of end plates disposed on end surfaces of a battery stack obtained by connecting the plurality of secondary battery cells to sandwich the battery stack; and a fastening member for fixing the end plates to each other. The end plate includes a first band body protruding from a main surface of the end plate on an upper end side of the end plate and second a band body protruding from the main surface of the end plate in a middle of the end plate. A space is formed in the second band body between the second band body and the main surface of the end plate.

Abstract: A power supply device includes: a battery stack body that includes a plurality of secondary battery cells that are stacked; a pair of end plates disposed on both end surfaces of the battery stack body, respectively; and binding bars that are disposed on both the end surfaces of the battery stack body, respectively, and bind the pair of end plates. Each of the binding bars includes engaging steps that are opposite the pair of end plates, respectively. Each of the engaging steps extends in a direction intersecting with a stack direction of the battery stack body. Each of the pair of end plates includes engaging protrusions that are opposite the binding bars, respectively. The engaging protrusions engage with engaging steps. Consequently, rigidity that binds the battery stack body together is increased without changing a material and a thickness of the binding bars.

Abstract: A power supply device disposes an end plate at each end of a battery stack in a stacked direction of the battery stack, and couples a binding bar to the end plate, so as to fix battery cells. The binding bar includes a plate-shaped bar that extends in the stacked direction, and an engagement block that is provided on a plate-shaped bar and protrudes toward an outer peripheral face of the end plate. The engagement block is inserted into a fixing hole provided in the plate-shaped bar and fixed to an inner peripheral face of the fixing hole. The end plate includes a fitting part, to which the engagement block is guided, on the outer peripheral face of the end plate, and includes a stopper that is disposed closer to the battery stack with respect to the fitting part and abuts the engagement block.

Abstract: A pair of end plates of a battery module are disposed respectively at end faces of a battery stack. Each of the end plates includes a first metal sheet, a second metal sheet, and a metal rod. The first metal sheet includes a plate part corresponding to a shape of each of the end faces of the battery stack, and a bent side piece provided at each of widthwise sides of the plate part. The second metal sheet includes a parallel plate part stacked on and fixed to the plate part of the first metal sheet, and a bending ridge that connects with each of sides of the parallel plate part and extends along widths of the end plates. A tubular reinforcement is defined on an inner side of the bending ridge. A metal rod is disposed in the tubular reinforcement and has ends connected to the bind bar.

Abstract: A battery module includes a battery stack that includes a plurality of prismatic battery cells stacked in a direction along their thicknesses, the pair of end plates disposed respectively at end faces of the battery stack that face in a stacked direction, bind bars that are disposed respectively on side faces of the battery stack and bind the pair of end plates together, and a plurality of securing pins fixing the bind bars over sides of each of the end plates. A pair of the plurality of securing pins are fixed respectively to the sides of each of the end plate to face each other and are coaxial with each other. Each of the end plate includes a horizontal rib extending coaxially with each of the plurality of securing pins.

Abstract: A power supply device includes: a plurality of secondary battery cells; a pair of end plates disposed on end surfaces of a battery stack obtained by connecting the plurality of secondary battery cells to sandwich the battery stack; and a fastening member for fixing the end plates to each other. The end plate includes a first band body protruding from a main surface of the end plate on an upper end side of the end plate and second a band body protruding from the main surface of the end plate in a middle of the end plate. A space is formed in the second band body between the second band body and the main surface of the end plate.

Abstract: Power supply device includes a plurality of secondary battery cells having a flat rectangular parallelepiped shape, a pair of end plates covering both end faces of battery stack having the plurality of secondary battery cells stacked on each other, and a plurality of fastening members for fastening end plates to each other. Each of the plurality of fastening members has a plate shape extending along the stacking direction of the plurality of secondary battery cells and is disposed on a corresponding one of opposite surfaces of battery stack. Through holes are formed in both ends of each plate shape. Each of the pair of end plates includes pipe portions inserted into the through holes of a pair of fastening members disposed on opposite surfaces of battery stack among the plurality of fastening members.

Abstract: A pair of end plates of a battery module are disposed respectively at end faces of a battery stack. Each of the end plates includes a first metal sheet, a second metal sheet, and a metal rod. The first metal sheet includes a plate part corresponding to a shape of each of the end faces of the battery stack, and a bent side piece provided at each of widthwise sides of the plate part. The second metal sheet includes a parallel plate part stacked on and fixed to the plate part of the first metal sheet, and a bending ridge that connects with each of sides of the parallel plate part and extends along widths of the end plates. A tubular reinforcement is defined on an inner side of the bending ridge. A metal rod is disposed in the tubular reinforcement and has ends connected to the bind bar.

Abstract: A power supply device disposes an end plate at each end of a battery stack in a stacked direction of the battery stack, and couples a binding bar to the end plate, so as to fix battery cells. The binding bar includes a plate-shaped bar that extends in the stacked direction of the battery stack, and an engagement block that is fixed to the plate-shaped bar and protrudes as a face opposing an outer peripheral face of the end plate. The End plate includes a fitting part to which the engagement block is guided, and a stopper. The fitting part is disposed on the outer peripheral face of the end plate. The stopper is disposed closer to the battery stack with respect to the fitting part, and abuts the engagement block.

Abstract: In a power supply device, both ends of a bind bar are coupled to a pair of end plates disposed at both ends of the battery stack in a stacking direction formed by stacking battery cells, a cooling plate made of metal different from metal of the bind bar is disposed on a surface of the battery stack in a themally coupled state, and a cooling plate is fixed to the battery stack via bolts disposed in a longitudinal direction of the battery stack. In the power supply device, length (L) of a fixed region formed by fixing the bind bar to the cooling plate with the bolts is set to less than or equal to 70% of total length of the bind bar, and a non-fixed region that is not fixed to cooling plate via the bolts is provided at an end of the bind bar.

Abstract: A power supply device disposes an end plate at each end of a battery stack in a stacked direction of the battery stack, and couples a binding bar to the end plate, so as to fix battery cells. The binding bar includes a plate-shaped bar that extends in the stacked direction, and an engagement block that is provided on a plate-shaped bar and protrudes as a face opposing an outer peripheral face of the end plate. The engagement block is inserted into a fixing hole provided in the plate-shaped bar and fixed to an inner peripheral face of the fixing hole. The end plate includes a fitting part, to which the engagement block is guided, on the outer peripheral face of the end plate, and includes a stopper that is disposed closer to the battery stack with respect to the fitting part and abuts the engagement block.

Abstract: A battery module includes a battery stack that includes a plurality of prismatic battery cells stacked in a direction along their thicknesses, the pair of end plates disposed respectively at end faces of the battery stack that face in a stacked direction, bind bars that are disposed respectively on side faces of the battery stack and bind the pair of end plates together, and a plurality of securing pins fixing the bind bars over sides of each of the end plates. A pair of the plurality of securing pins are fixed respectively to the sides of each of the end plate to face each other and are coaxial with each other. Each of the end plate includes a horizontal rib extending coaxially with each of the plurality of securing pins.

Abstract: A power supply device includes: a battery stack body that includes a plurality of secondary battery cells that are stacked; a pair of end plates disposed on both end surfaces of the battery stack body, respectively; and binding bars that are disposed on both the end surfaces of the battery stack body, respectively, and bind the pair of end plates. Each of the binding bars includes engaging steps that are opposite the pair of end plates, respectively. Each of the engaging steps extends in a direction intersecting with a stack direction of the battery stack body. Each of the pair of end plates includes engaging protrusions that are opposite the binding bars, respectively. The engaging protrusions engage with engaging steps. Consequently, rigidity that binds the battery stack body together is increased without changing a material and a thickness of the binding bars.

Abstract: A baffle plate structure includes an oil pan, an oil pump, a baffle plate, and a resin oil strainer. The baffle plate is to separate an interior of the oil pan into a crank case side and a oil chamber side. The resin oil strainer includes an inlet portion and a parallel portion. The inlet portion extends toward a bottom surface of the oil pan. The inlet portion has an inlet port for lubricant at a lower part of the inlet portion. The parallel portion extends from the inlet portion in a direction substantially parallel to the baffle plate to introduce the lubricant from the inlet portion to the oil pump. The baffle plate has an opening corresponding to the parallel portion of the resin oil strainer. The parallel portion of the resin oil strainer is disposed so as to close the opening.

Abstract: A baffle plate structure includes an oil pan, an oil pump, a baffle plate, and a resin oil strainer. The baffle plate is to separate an interior of the oil pan into a crank case side and a oil chamber side. The resin oil strainer includes an inlet portion and a parallel portion. The inlet portion extends toward a bottom surface of the oil pan. The inlet portion has an inlet port for lubricant at a lower part of the inlet portion. The parallel portion extends from the inlet portion in a direction substantially parallel to the baffle plate to introduce the lubricant from the inlet portion to the oil pump. The baffle plate has an opening corresponding to the parallel portion of the resin oil strainer. The parallel portion of the resin oil strainer is disposed so as to close the opening.