Abstract: The present invention provides an electricity storage unit in which the influence of noise from a circuit portion can be suppressed, and the circuit portion and a power storage element can be consolidated. The electricity storage unit includes a circuit portion on which an electronic component is mounted, power storage elements, and a holding member that holds the power storage elements. The holding member includes an electrically conductive shield wall portion between the circuit portion and the power storage elements, and the shield wall portion shields noise generated by the circuit portion. The electricity storage unit may further have an electrically conductive heat dissipation member that dissipates heat from the circuit portion.

Abstract: A power supply device that includes a plurality of electricity storage elements each including lead terminals; a conductive connector connected to the lead terminals; a circuit board including a conductive path; a conductive relay terminal electrically connected to the conductive path, the connector being disposed so as to be in contact with the relay terminal; and a resin holder configured to hold the plurality of electricity storage elements, wherein the holder includes an electricity storage element holder configured to hold the electricity storage elements, a connecting member holder configured to hold the connector, and a fitting groove into which the lead terminals can be fitted, and the connecting member holder is formed so as to traverse the fitting groove.

Abstract: A power supply device that includes a plurality of capacitors including a plurality of lead terminals; a circuit board including a conductive path; a relay terminal configured to connect the lead terminals to the conductive path of the circuit board; and a cover configured to cover the plurality of lead terminals of the plurality of capacitors, wherein the plurality of capacitors are oriented such that the respective lead terminals are disposed on an inner side, and the relay terminal includes a plurality of pressure contacts configured to come into pressure contact with a plurality of lead terminals of the plurality of capacitors, the lead terminals having the same potential, and a board connector configured to be connected to the conductive path of the circuit board, a number of the board connector being smaller than a number of the plurality of pressure contacts.

Abstract: An electricity storage module includes: multiple electricity storage elements; and a holding member formed by aligning multiple cavities in which the multiple electricity storage elements are stored, wherein an outer wall of the holding member has outer wall opening portions through which the multiple cavities communicate with the exterior, and outer surfaces of the multiple electricity storage elements stored in the multiple cavities are exposed to the exterior from the outer wall through the outer wall opening portions, and the holding member has a first cavity column in which cavities among the multiple cavities are aligned in two levels in an alignment direction, and a second cavity column in which cavities among the multiple cavities are aligned in two levels in the alignment direction at positions shifted in a direction intersecting with the alignment direction.

Abstract: A power storage module includes: a heat sink that has a first bolt insertion hole; a frame that has a second bolt insertion hole through which a bolt is inserted; and a power storage unit that is stacked on the frame. The power storage unit includes a threaded portion that has a screw hole into which the bolt is screwed. The bolt is screwed into the screw hole of the threaded portion, with the bolt being inserted through the first bolt insertion hole and the second bolt insertion hole. A gap is formed between the heat sink and the frame.

Abstract: A circuit assembly includes a circuit board having an insulating board in which a conductive path is formed on an insulating plate and a plurality of busbars that are bonded to one side of the insulating board, an insulating layer that is printed to the plurality of busbars so as to couple adjacent ones of the plurality of busbars to each other, a heat dissipation member on which the insulating layer is placed and which is configured to dissipate heat conducted from the insulating layer, a fixing member that is configured to fix the circuit board and the heat dissipation member to each other in a state in which the insulating layer is sandwiched between the heat dissipation member and the plurality of busbars.

Abstract: A power storage unit includes a power storage module that has multiple power storage elements, a heat dissipation member that is overlaid on the power storage module, and stud bolts that electrically connected an external circuit and the power storage module. The stud bolts pass through the heat dissipation member and are arranged outside. It is therefore possible to improve efficiency in the operation of connecting the external circuit and the stud bolts.

Abstract: Provided is a circuit assembly that enables suppression of a decrease in heat dissipation properties. A circuit assembly includes a circuit board having a conductive path, a heat dissipation member on which the circuit board is placed, and an insulating layer that is interposed between the circuit board and the heat dissipation member. A surface of the heat dissipation member that faces the circuit board is a rough surface having protrusions and recessions, and the circuit board and the heat dissipation member are fixed to each other by the insulating layer penetrating the protrusions and recessions of the rough surface.

Abstract: A circuit assembly includes a circuit board having an insulating board in which a conductive path is formed on an insulating plate and a plurality of busbars that are bonded to one side of the insulating board, an insulating layer that is printed to the plurality of busbars so as to couple adjacent ones of the plurality of busbars to each other, a heat dissipation member on which the insulating layer is placed and which is configured to dissipate heat conducted from the insulating layer, a fixing member that is configured to fix the circuit board and the heat dissipation member to each other in a state in which the insulating layer is sandwiched between the heat dissipation member and the plurality of busbars.

Abstract: Provided is a circuit assembly that enables suppression of a decrease in heat dissipation properties. A circuit assembly includes a circuit board having a conductive path, a heat dissipation member on which the circuit board is placed, and an insulating layer that is interposed between the circuit board and the heat dissipation member. A surface of the heat dissipation member that faces the circuit board is a rough surface having protrusions and recessions, and the circuit board and the heat dissipation member are fixed to each other by the insulating layer penetrating the protrusions and recessions of the rough surface.

Abstract: The present invention provides an electricity storage unit in which the influence of noise from a circuit portion can be suppressed, and the circuit portion and a power storage element can be consolidated. The electricity storage unit includes a circuit portion on which an electronic component is mounted, power storage elements, and a holding member that holds the power storage elements. The holding member includes an electrically conductive shield wall portion between the circuit portion and the power storage elements, and the shield wall portion shields noise generated by the circuit portion. The electricity storage unit may further have an electrically conductive heat dissipation member that dissipates heat from the circuit portion.

Abstract: Provided is an electricity storage module including an electricity storage element group composed of multiple electricity storage elements having exhaust ports that discharge gas produced therein, and a cover attached to the electricity storage element group, wherein the electricity storage element group has exhaust surfaces on which the exhaust ports are arranged, and the cover is attached so as to cover the exhaust surfaces, guide walls that surround the exhaust ports in the form of loops are formed in the respective electricity storage elements, guide ribs that come into close contact with the guide portions and fit therein are formed on an opposing surface of the cover that opposes the exhaust surfaces, and the cover is provided with a duct that communicates with the exhaust ports and through which gas discharged from the exhaust ports passes.

Abstract: An electricity storage module includes: multiple electricity storage elements; and a holding member formed by aligning multiple cavities in which the multiple electricity storage elements are stored, wherein an outer wall of the holding member has outer wall opening portions through which the multiple cavities communicate with the exterior, and outer surfaces of the multiple electricity storage elements stored in the multiple cavities are exposed to the exterior from the outer wall through the outer wall opening portions, and the holding member has a first cavity column in which cavities among the multiple cavities are aligned in two levels in an alignment direction, and a second cavity column in which cavities among the multiple cavities are aligned in two levels in the alignment direction at positions shifted in a direction intersecting with the alignment direction.

Abstract: An electricity storage unit includes: an electricity storage device; a circuit portion on which an electronic component is mounted; a heat dissipation member that dissipates heat from the circuit portion; and a holding member that holds the electricity storage device in a state where the electricity storage device, the circuit portion, and the heat dissipation member are stacked, wherein the holding member is provided with a supporting portion that supports the electricity storage device and abuts against the heat dissipation member.

Abstract: An electric connection box includes an electronic circuit board having an electronic component, and a power circuit board having a power circuit, which are disposed upright in a casing. A vertically-extending component area for mounting a heat generating component is formed on the power circuit board, so as not to face the electronic circuit board. A partition wall for separating the component area from the electronic circuit board is provided in the casing, and thereby a first air passage for allowing air to flow vertically along the component area is formed in the casing. A first inlet port connected to the first air passage is formed on the casing, and a first outlet port connected to the first air passage and positioned above the first inlet port is formed on the casing.

Abstract: An electric connection box includes an electronic circuit board having an electronic component, and a power circuit board having a power circuit, which are disposed upright in a casing. A vertically-extending component area for mounting a heat generating component is formed on the power circuit board, so as not to face the electronic circuit board. A partition wall for separating the component area from the electronic circuit board is provided in the casing, and thereby a first air passage for allowing air to flow vertically along the component area is formed in the casing. A first inlet port connected to the first air passage is formed on the casing, and a first outlet port connected to the first air passage and positioned above the first inlet port is formed on the casing.

Abstract: An electric connection box includes an electronic circuit board having an electronic component, and a power circuit board having a power circuit, which are disposed upright in a casing. A vertically-extending component area for mounting a heat generating component is formed on the power circuit board, so as not to face the electronic circuit board. A partition wall for separating the component area from the electronic circuit board is provided in the casing, and thereby a first air passage for allowing air to flow vertically along the component area is formed in the casing. A first inlet port connected to the first air passage is formed on the casing, and a first outlet port connected to the first air passage and positioned above the first inlet port is formed on the casing.

Abstract: An electric connection box includes an electronic circuit board having an electronic component, and a power circuit board having a power circuit, which are disposed upright in a casing. A vertically-extending component area for mounting a heat generating component is formed on the power circuit board, so as not to face the electronic circuit board. A partition wall for separating the component area from the electronic circuit board is provided in the casing, and thereby a first air passage for allowing air to flow vertically along the component area is formed in the casing. A first inlet port connected to the first air passage is formed on the casing, and a first outlet port connected to the first air passage and positioned above the first inlet port is formed on the casing.

Abstract: An electrical junction box for a vehicle has a casing, and an electrical circuit comprising a fuse connection circuit, a relay connection circuit and a connector connection circuit. The casing has, at opposite sides, connector sockets for electrical connectors. In the casing is a connector module comprising a plurality of insulation substrates stacked one on another and parallel elongated bus bars on a first surface of each substrate and parallel flexible conductors on a second surface of the substrate, which extend orthogonally to said bus bars. Each said insulation substrate has apertures through it at which the bus bars and flexible conductors are connected to each other to provide desired circuit connections. The bus bars extend from the insulation substrates and provide tabs projecting into the connector sockets. A thin junction box is obtained.

Abstract: The present invention provides a junction box that is divided into a base circuit part connectable to an external circuit and fuse and/or relay connection circuit parts. The junction box includes a base module including the base circuit part, and a fuse module including the fuse connection circuit part and/or a relay module including the relay connection circuit, and the junction box is assembled by combining the modules. The base circuit part of the base module includes rectangular vertical bus bars that are aligned in parallel in an internal part of a case, and the case incorporates multiple terminal housing compartments into which terminals connectable to external wire terminals are inserted, each terminal incorporating pairs of grip ends of terminals that grip and connect to the vertical bus bars.