The electrical connection box includes a case, a frame that is made of a synthetic resin and whose position is fixed relative to the case, fixed terminals that are fixed to the frame and can be connected to external terminals, a fuse having terminals that are put over the fixed terminals, stud bolts for fastening the external terminals, the fixed terminals, and the terminals of the fuse together, and a holding member that holds the stud bolts. The frame includes an attached portion to which the holding member is attached.

In a terminal temporary holding structure, a terminal fitting includes a cable connecting part, an electrical contact part fastened to the busbar terminal, and a connecting part connecting the electrical contact part and the cable connecting part. A terminal step part is formed in the terminal fitting at a position at which the connecting part and the electrical contact part are connected to each other. A housing in this structure includes a drop-in recess accommodating the electrical contact part and a suppressing part disposed over the cable connecting part and/or the cable. An engagement step part configured to engage to the terminal step part is formed in a step of a periphery of the drop-in recess so as to temporarily hold the terminal fitting in cooperation with the suppressing part before the electrical contact part is fastened to the busbar terminal by the fastening member.

A communication module includes a plug connector provided with upper connection pins and lower connection pins. The upper connection pins and the lower connection pins include signal pins each connected to a signal line arranged in a module board, and ground pins each connected to a ground line arranged in the module board. An opposing interval between a terminal end of a rear end portion of each of the ground pins included in the upper connection pins, and a terminal end of a rear end portion of each of the ground pins included in the lower connection pins is longer than an opposing interval between a terminal end of a rear end portion of each of the signal pins included in the upper connection pins and a terminal end of a rear end portion of each of the signal pins included in the lower connection pins.

An electrical unit includes a thermally conductive housing, an electrically insulating frame disposed in the thermally conductive housing, a plurality of bus bars disposed at least partially between a base wall of the thermally conductive housing and a first side of the electrically insulating frame, and a plurality of electrical components connected to a second side of the electrically insulating frame. At least one bus bar of the plurality of bus bars may be connected to the electrically insulating frame via one or more plastic rivets. Thermally conductive material may be disposed between at least one bus bar of the plurality of bus bars and a wall of the housing.

In a terminal temporary holding structure, a terminal fitting includes a cable connecting part, an electrical contact part fastened to the busbar terminal, and a connecting part connecting the electrical contact part and the cable connecting part. A terminal step part is formed in the terminal fitting at a position at which the connecting part and the electrical contact part are connected to each other. A housing in this structure includes a drop-in recess accommodating the electrical contact part and a suppressing part disposed over the cable connecting part and/or the cable. An engagement step part configured to engage to the terminal step part is formed in a step of a periphery of the drop-in recess so as to temporarily hold the terminal fitting in cooperation with the suppressing part before the electrical contact part is fastened to the busbar terminal by the fastening member.

A modular power distribution assembly includes a first power module having a power input, a first aperture extending therethrough, and a first bus bar connector at the first aperture and a set of second power modules having a respective power switch, a second aperture extending therethrough, and a second bus bar connector at the aperture, wherein the first power module and the set of second power modules have an attachment interface adapted to physically secure the first power module to the set of second power modules.

A measuring and/or control system (1), to control for example a machine tool, comprises at least a first and a second unit, each comprising a casing with a front wall, electronic circuits and at least one socket. The system further comprises a bridge connector (11) having a first multipolar connector (11A) and a second multipolar connector (11B), each of which can be coupled to one of the sockets in order to electrically connect the first and the second unit. In each of the first unit and second unit, the socket is positioned on the respective front wall and comprises planar electrical contacts. The first and the second multipolar connectors of the bridge connector are directed in the same direction so as to face the front wall of the first unit and the second unit and each comprise retractable contacts. The bridge connector comprises fastening elements for fastening the bridge connector to the front wall of the first unit and of the second unit.

A battery pack includes a bus bar, a first module, and a second module. The bus bar extends in a predetermined direction and includes a first region, a second region and an intermediate region. The first module includes a plurality of cells each including a negative electrode terminal connected to the first region. The second module includes a plurality of cells each including a positive electrode terminal connected to the second region. The negative electrode terminals are arranged in the predetermined direction in the first region. The positive electrode terminals are arranged in the predetermined direction in the second region. In a cross section perpendicular to the predetermined direction, a cross-sectional area of the intermediate region is greater than a cross-sectional area of at least a part of the first region and is greater than a cross-sectional area of at least a part of the second region.

A terminal accommodating body includes a terminal accommodating chamber for each coupling terminal capable of accommodating a coupling terminal capable of being electrically connected to a terminal of an electronic component, and a terminal holding portion that holds the coupling terminal. In all the terminal accommodating chambers, in a plurality of common accommodating chambers in which the coupling terminal and one terminal portion in a one plate-like bus bar having a plurality of terminal portions electrically connectable to the terminal of the electronic component are capable of being replaced and accommodated, and a partition wall between the adjacent common accommodating chambers has an inter-chamber inserting portion into which the coupling portion is inserted in an accommodated state of the terminal portion to the common accommodating chamber, in order to accommodate a coupling portion in the common accommodating chamber.

This motor drive device includes a first motor driving unit, a first terminal block 11 attached to the first motor driving unit, a second motor driving unit, a second terminal block attached to the motor driving unit, a first short bar whose one end portion is attached to the first terminal block so that the first short bar can be rotated around a first axis line, and a second short bar whose one end portion is attached to the first terminal block so that the second short bar can be rotated around a second axis line, the other end sides thereof can be placed at a connection position so that the other end sides can be connected to the second terminal block, and at a retract position which is distant from the second terminal block by rotation of the first and the second short bars.