A fail proof electrical connector apparatus offers a unique structure for solar photovoltaic (PV) system installations. The apparatus includes a compact connector enclosure that can be installed at flexible locations of a solar module. The tabs of the connector enclosure connect to various solar cells of the module. The insertion pins of the tabs are mounted inside plugs of a pin connector, which connects to a cable. The cable comprises a one-plug end and a multiple-plug end with a wire connecting both. Of the two or more plugs of the multiple-plug end, only one active plug is electrically connected to the wire. The cable is connected to the module with the active plug being inserted to a center plug of the pin connector, and the one-plug end connected to an outer plug of the pin connector of an adjacent module, thus, achieving fail proof, reliable installations while saving labor hours.

A fail proof electrical connector apparatus offers a unique structure for solar photovoltaic (PV) system installations. The apparatus includes a compact connector enclosure that can be installed at flexible locations of a solar module. The tabs of the connector enclosure connect to various solar cells of the module. The insertion pins of the tabs are mounted inside plugs of a pin connector, which connects to a cable. The cable comprises a one-plug end and a multiple-plug end with a wire connecting both. Of the two or more plugs of the multiple-plug end, only one active plug is electrically connected to the wire. The cable is connected to the module with the active plug being inserted to a center plug of the pin connector, and the one-plug end connected to an outer plug of the pin connector of an adjacent module, thus, achieving fail proof, reliable installations while saving labor hours.

Provided is an electrical junction box (100) including a housing (30) that houses a substrate (21) to which a fixed fuse (10) is soldered. The housing (30) includes a checking opening (33) for checking whether or not the fixed fuse (10) has been blown out.

Provided is an electrical junction box (100) including a housing (30) that houses a substrate (21) to which a fixed fuse (10) is soldered. The housing (30) includes a checking opening (33) for checking whether or not the fixed fuse (10) has been blown out.

An in-vehicle electric component-internal circuit unit has a novel structure that can reduce the number of in-vehicle electric component-side work processes and reduce in-vehicle electric component size. An in-vehicle electric component-internal circuit unit includes: an insulative holder that holds circuit members; a wire harness that includes a coated wire, a circuit-side connection portion that is provided on an end portion on one side of the coated wire, a connector that is provided on an end portion on the other side of the coated wire, and a grommet through which the coated wire passes; a plate wall portion for covering a housing through-hole provided in a housing of an in-vehicle electric component; and a seal member that is provided on a first surface, which is a surface of the plate wall portion to be attached to the housing and that comes into contact with the rim of the housing through-hole.

An in-vehicle electric component-internal circuit unit has a novel structure that can reduce the number of in-vehicle electric component-side work processes and reduce in-vehicle electric component size. An in-vehicle electric component-internal circuit unit includes: an insulative holder that holds circuit members; a wire harness that includes a coated wire, a circuit-side connection portion that is provided on an end portion on one side of the coated wire, a connector that is provided on an end portion on the other side of the coated wire, and a grommet through which the coated wire passes; a plate wall portion for covering a housing through-hole provided in a housing of an in-vehicle electric component; and a seal member that is provided on a first surface, which is a surface of the plate wall portion to be attached to the housing and that comes into contact with the rim of the housing through-hole.

A circuit structure includes a first busbar constituted by a cladding material, a second busbar, an insulating member including an insulating portion located between the first busbar and the second busbar, and an electronic component provided on the first busbar and the second busbar so as to straddle the insulating portion. The electronic component has a connection terminal bonded to the first busbar.

A circuit structure includes a first busbar constituted by a cladding material, a second busbar, an insulating member including an insulating portion located between the first busbar and the second busbar, and an electronic component provided on the first busbar and the second busbar so as to straddle the insulating portion. The electronic component has a connection terminal bonded to the first busbar.

A connector module that is provided with an input port and an output port that are configured to be connected to an external member, and is to be mounted on a substrate, the connector module including: a bus bar that is separated from the substrate and connects a terminal of the input port and a terminal of the output port to each other; and an insulating member that is interposed between the bus bar and the substrate.

A connector module that is provided with an input port and an output port that are configured to be connected to an external member, and is to be mounted on a substrate, the connector module including: a bus bar that is separated from the substrate and connects a terminal of the input port and a terminal of the output port to each other; and an insulating member that is interposed between the bus bar and the substrate.