Abstract: A voltage detection unit includes a voltage detection terminal, a housing including a terminal accommodating concave and a cover to be attached to the housing and to cover the voltage detection terminal accommodated in the terminal accommodating concave. The cover includes an extension piece extending in a first direction. The housing includes an accommodating hole to accommodate the extension piece, and a guide portion including an inclined surface and a guide surface. The inclined surface has a first end in the first direction and a second end and is inclined with respect to the first direction such that the first end is provided closer to the accommodating hole than the second end in a second direction perpendicular to the first direction and being parallel to the housing. The guide surface is continuous with the inclined surface and an inner wall surface of the accommodating hole.

Abstract: A voltage detection unit includes a voltage detection terminal configured to be conductively connected to a detection target, an electric wire conductively connected to the voltage detection terminal and a housing having a plate shape and including a terminal accommodating concave configured to accommodate the voltage detection terminal, an electric wire accommodating concave defined by a first groove side wall, a second groove side wall and a groove bottom surface, and configured to accommodate the electric wire and to guide the electric wire out of the housing and an electric wire restricting portion configured to hold the electric wire between the electric wire restricting portion and the groove bottom surface and to prevent the electric wire from being displaced out of the electric wire accommodating concave.

Abstract: A busbar module includes a case to be attached to a battery assembly, busbars and electric wires having a connection end to be connected to the busbars. The case includes busbar accommodation portions to accommodate the busbars and an electric wire routing groove portion to accommodate the electric wires. The electric wire routing groove portion includes a connection end accommodation portion to accommodate the connection end, an accommodation portion cover and an electric wire lead-out portion configured such that the electric wires are drawn out from the connection end accommodation portion toward a direction. An outer surface of the accommodation portion cover is to form a bottom surface of a routing path configured such that the electric wires drawn out from the connection end accommodation portion extend in the routing path.

Abstract: An electric wire routing groove portion in which an electric wire is hosed includes a bottom portion; a pair of side wall portions that are erected from the bottom portion and are provided facing each other; and locking pieces that protrude from the side wall portions in directions in which the locking pieces approach each other and are formed with a gap through which the electric wire is passed between distal ends of the locking pieces. The side wall portion includes low edge portions formed on both sides of the locking pieces and provided closer to the bottom portion than a position of the locking piece on a bottom portion side.

Abstract: There is provided a plate for a battery stack including: a plate-shaped terminal to which an electric wire is connected; and a plate-shaped housing having an accommodating recess where the terminal is accommodated. The accommodating recess includes a retaining hole, and the terminal includes a connection portion that is electrically connected to a counterpart member, and a retaining piece that is inserted into the retaining hole and locked to the retaining hole.

Abstract: There are provided a plate for a buttery stack and battery stack including: a plate-shaped housing having a fitting groove provided in a recessed shape in a first plate side surface of the plate for the battery stack along a longitudinal direction thereof; a plurality of bottomed first recessed holes formed side by side in a direction orthogonal to a plate thickness direction of the plate for the battery stack, and extending from a second plate side surface opposite to the first plate side surface; and a plurality of second recessed holes formed side by side in the direction orthogonal to the plate thickness direction, and extending from a bottom portion of the fitting groove to be positioned between the two adjacent first recessed holes.

Abstract: A voltage detection unit includes a voltage detection terminal, a housing including a terminal accommodating concave and a cover to he attached to the housing and to cover the voltage detection terminal accommodated in the terminal accommodating concave. The cover includes an extension piece extending in a first direction. The housing includes an accommodating hole to accommodate the extension piece, and a guide portion including an inclined surface and a guide surface. The inclined surface has a first end in the first direction and a second end and is inclined with respect to the first direction such that the first end is provided closer to the accommodating hole than the second end in a second direction perpendicular to the first direction and being parallel to the housing. The guide surface is continuous with the inclined surface and an inner wall surface of the accommodating hole.

Abstract: A voltage detection unit includes a voltage detection terminal configured to be conductively connected to a detection target, an electric wire conductively connected to the voltage detection terminal and a housing having a plate shape and including a terminal accommodating concave configured to accommodate the voltage detection terminal, an electric wire accommodating concave defined by a first groove side wall, a second groove side wall and a groove bottom surface, and configured to accommodate the electric wire and to guide the electric wire out of the housing and an electric wire restricting portion configured to hold the electric wire between the electric wire restricting portion and the groove bottom surface and to prevent the electric wire from being displaced out of the electric wire accommodating concave.

Abstract: There are provided a plate for a battery stack configured to be sandwiched between a plurality of power storage modules, and a battery stack. The plate for the battery stack includes: a plate-shaped housing having a fitting groove provided in a recessed shape in a first plate side surface of the plate for a battery stack along a longitudinal direction thereof, the fitting groove being a groove configured to fit with a side edge portion of a conductive plate disposed between the plurality of stacked power storage modules; and a plurality of recessed holes formed side by side in a direction orthogonal to a plate thickness direction of the plate for a battery stack, and extending from a second plate side surface of the housing.

Abstract: A voltage detection unit includes a voltage detection terminal including a first portion configured to be conductively connected to a detection target and a second portion, a housing having a plate shape and including a terminal accommodating concave configured to accommodate the voltage detection terminal, a cover configured to be engaged with the housing at a temporary locking position at which the cover does not cover the first portion of the voltage detection terminal accommodated in the terminal accommodating concave and at a final locking position at which the cover covers the first portion and an electric wire conductively connected to the voltage detection terminal at the second portion and configured to, when the voltage detection terminal is accommodated in the terminal accommodating concave, be drawn out from the housing.

Abstract: A voltage detection unit includes a voltage detection terminal, a housing having an accommodating concave portion to accommodate the voltage detection terminal and a cover to be attached to the housing while covering the accommodating concave portion. The cover is locked to the housing at a temporary locking position at which the cover covers a part of the accommodating concave portion and at a final locking position at which the cover covers an entirety of the accommodating concave portion. The cover includes a main body portion including a locking portion, and a locking piece. The housing includes a locked portion to be locked to the locking portion, a locking hole to accommodate the locking piece and an extending portion formed by a part of an edge of the locking hole. The locking piece is accommodated in the locking hole when the cover is at the temporary locking position.

Abstract: An automotive bus bar module includes a flat plate-shaped bus bar arranged to extend over electrodes of two adjacent unit batteries of a plurality of linearly arranged unit batteries of a battery assembly to electrically connect the electrodes to each other, a plurality of electric wires arranged to extend along an arrangement direction of the unit batteries, one of the plurality of electric wires being connected to the bus bar and an electric wire holding plate made of resin and arranged to extend over an upper surface of the bus bar, the electric wire holding plate holding the plurality of electric wires in a state of being parallel to each other and arranged planarly such that the plurality of electric wires extend along the arrangement direction of the unit batteries.

Abstract: A bus bar module includes an insulating resin case mounted to an assembled battery and including a bus bar accommodating chamber, a conductive metal bus bar, and a voltage detection terminal. The assembled battery includes a plurality of cells in which a positive terminal and a negative terminal are alternately arranged. The positive terminal and the negative terminal are collectively disposed in the bus bar accommodating chamber. The conductive metal bus bar includes a plurality of terminal through holes corresponding to a number of the positive terminal and the negative terminal. The conductive metal bus bar is accommodated in the bus bar accommodating chamber.

Abstract: A bus bar includes a plurality of fastening holes in which a plurality of electrodes of a single cell is fastened with a nut, and a plurality of projections formed between the fastening holes and projecting in a direction away from the single cell. A case includes a bus bar hosing portion in which the bus bar is housed, and a support portion disposed in the projection of the bus bar housed in the bus bar housing portion and abutting against a back surface of the projection to support the bus bar. The support portion includes a base portion protruding in an arrangement direction of the fastening holes. At least a part of both side surfaces of the base portion overlaps with an inner side surface of the projection as viewed from a direction perpendicular to a fastening direction in which the bus bar is fastened to the electrode.

Abstract: A bus bar includes a plurality of fastening holes in which a plurality of electrodes of a single cell is fastened with a nut, and a plurality of projections formed between the fastening holes and projecting in a direction away from the single cell. A case includes a bus bar hosing portion in which the bus bar is housed, and a support portion disposed in the projection of the bus bar housed in the bus bar housing portion and abutting against a back surface of the projection to support the bus bar. The support portion has a width smaller than an interval between inner side surfaces of side plate portions of the projection.

Abstract: A bus bar module includes a case assembled to a battery assembly including single cells, a bus bar held in the case and fastened to electrodes of the single cells, a circuit body connected to the bus bar and is wired in the case, and a circuit board to which the circuit body is connected. The case includes a case main body including a board accommodation space, and a lid body attached to one side at which the board accommodation space in the case main body is open. The circuit body is led from an opening portion into the board accommodation space, the opening portion being formed on a surface of the other side opposite to the one side of the board accommodation space in the case main body. The circuit body is soldered to the circuit board from the one side.

Abstract: A busbar module includes a case to be attached to a battery assembly, busbars and electric wires having a connection end to be connected to the busbars. The case includes busbar accommodation portions to accommodate the busbars and an electric wire routing groove portion to accommodate the electric wires. The electric wire routing groove portion includes a connection end accommodation portion to accommodate the connection end, an accommodation portion cover and an electric wire lead-out portion configured such that the electric wires are drawn out from the connection end accommodation portion toward a direction. An outer surface of the accommodation portion cover is to form a bottom surface of a routing path configured such that the electric wires drawn out from the connection end accommodation portion extend in the routing path.

Abstract: A voltage detector of a battery module includes a flexible conductive member that is disposed for each of two electrode groups formed of electrodes arranged in a row of a battery module that is an aggregate of a battery cell provided with two equipotential portions each of which has a same potential with each of the two electrodes, and is electrically connected to the equipotential portion for each of the electrodes of each of the electrode groups serving as a disposition target. The flexible conductive member includes: a conductive portion for each of the equipotential portions having flexibility that is electrically connected to the equipotential portion and each of an arithmetic processing device of a battery monitoring unit that monitors a voltage of the battery cell; and an insulating portion having flexibility that electrically insulates the plurality of conductive portions from each other.

Abstract: A conductor includes a connection conductor that is directly connected to at least one of a plurality of electrode terminals of an electrode terminal group of a plurality of battery cells arranged in a same direction; a linear conductor that is connected to a battery monitoring unit configured to monitor a battery state of the battery cells; a fuse element that is indirectly connected between the connection conductor and the linear conductor, and that melts when overcurrent flows between the connection conductor and the linear conductor; and a resin mold member that has an insulation property and that includes the fuse element, a part of the connection conductor, and a part of a relay terminal.

Abstract: A conductor module for terminal includes a bus bar, a state detector including a detection conductor, and a fixing member fixing the state detector to the bus bar. The bus bar includes a connection surface to which the detection conductor is electrically connected, and two fixing holes formed with the placed state detector interposed therebetween. The fixing member includes a main body that the state detector is made contact with, and plastically deformable fixing legs. Each of the fixing legs is inserted in the fixing hole from the connection surface side and projects from the fixed surface. In a fixed state, when the fixing leg is seen from an axis direction of the fixing hole, a tip of the fixing leg is disposed on the outside in a radial direction than the fixing holes.