An electric connector includes a socket connector, a plug connector having a bar shape for connecting an electric circuit, the plug connector capable of insertion into and removed from the socket connector and to be rotatable between unlocked and locked positions about an axis thereof, a pair of detection terminals opposing across the plug connector, and a conductive member for providing electric conduction between the pair of detection terminals in the locked position of the plug connector. The conductive member includes a pair of pressed pieces arranged between the pair of detection terminals and the plug connector, spaced away from the detection terminals in the unlocked position of the plug connector, but pressed by an outer surface of the plug connector in the locked position of the plug connector to bring contact portions thereof into contact with the detection terminals and a coupling piece coupling the pair of pressed pieces.

A rotary connector apparatus includes: a ring-shaped fixed member; a ring-shaped rotating member rotatably fitted to the fixed member; a flexible flat cable housed in a housing space formed by the fixed member and the rotating member, the flexible flat cable having a plurality of wires, one end of the flexible flat cable being fixed to the fixed member and another end thereof being fixed to the rotating member, wherein a first connector housing attached to the fixed member accommodates a plurality of electrically conductive paths that respectively connect a plurality of first terminals to the plurality of wires at said one end of the flexible flat cable, and at least one of the plurality of electrically conductive paths is configured to removably receive a protection device so as to protect the path from overcurrent.

A rotary connector apparatus includes: a ring-shaped fixed member; a ring-shaped rotating member rotatably fitted to the fixed member; a flexible flat cable housed in a housing space formed by the fixed member and the rotating member, the flexible flat cable having a plurality of wires, one end of the flexible flat cable being fixed to the fixed member and another end thereof being fixed to the rotating member, wherein a first connector housing attached to the fixed member accommodates a plurality of electrically conductive paths that respectively connect a plurality of first terminals to the plurality of wires at said one end of the flexible flat cable, and at least one of the plurality of electrically conductive paths is configured to removably receive a protection device so as to protect the path from overcurrent.

The present invention provides a multiple fuse device capable of charging a battery with a configuration simpler than the conventional art, and a method for charging a battery using the multiple fuse device. A multiple fuse device 400 includes a bus bar 100 including an input terminal 110, a plurality of external terminals 120, and fusible portions 113 provided between the input terminal 110 and the external terminals 120, and a housing 200 configured to cover the bus bar 100, wherein an opening 230 is provided in a part of the housing 200, and part of the bus bar 100 is exposed through the opening 230 in a state where the multiple fuse device 400 is mounted in a fuse box 700.

A connecting-conductor is disclosed. The connecting-conductor may have a first conductor-element and a second conductor-element. Each conductor-element has a first end that is mechanically-connected and electrically-conductively connected to a resistor-element. The resistor-element has an electrical-insulating substrate, and a resistive material annularly disposed on at least part of the electrical-insulating substrate. The first end of each conductor-element is electrically-conductively connected to the resistive material. The first conductor does not touch the second conductor, and an electrical pathway is created via the resistive material from one of the conductor-elements to the other of the conductor-elements.

Devices, methods, and systems are provided that incorporate and support a number of physical fusible links arranged in a terminal of a battery cell. The fusible links are configured as legs connecting a raised platform of a battery cell cap to a conductive base portion of the battery cell cap. Each of the fusible link legs is sized and shaped to function as a fusible link. The fusible link legs include a controlled cross-sectional area disposed along a length of the material making up the fusible link leg. In an overcurrent situation, the connection between an electrical system and a battery cell having the integrated fusible link legs is severed by the overcurrent melting the legs.

An electric connector includes a socket connector, a plug connector having a bar shape for connecting an electric circuit, the plug connector capable of insertion into and removed from the socket connector and to be rotatable between unlocked and locked positions about an axis thereof, a pair of detection terminals opposing across the plug connector, and a conductive member for providing electric conduction between the pair of detection terminals in the locked position of the plug connector. The conductive member includes a pair of pressed pieces arranged between the pair of detection terminals and the plug connector, spaced away from the detection terminals in the unlocked position of the plug connector, but pressed by an outer surface of the plug connector in the locked position of the plug connector to bring contact portions thereof into contact with the detection terminals and a coupling piece coupling the pair of pressed pieces.

An electric connector includes a socket connector, a bar-like plug connector to be inserted/withdrawn to/from the socket connector and a fuse. When the plug connector is inserted to the socket connector, electric conduction is established in the electric circuit via the fuse. The fuse is attached to the socket connector.

A fuse unit includes a bus bar and a housing. The bus bar includes a power source-side connection section, an output-side connection section, and a fusible body. A terminal configured to be connected to the output-side connection section includes a bent section and protrusion sections. The housing includes a terminal accommodation section for accommodating the output-side connection. The accommodation space is enclosed with side walls standing upright on both sides of the output-side connection section in an insertion direction of the terminal and on a deep side thereof in the insertion direction of the terminal. The terminal accommodation section includes terminal insertion start-side movement restricting walls and a height-direction and terminal insertion start-side movement restricting wall.

A fuse unit includes a bus bar and a housing. The bus bar includes a power source-side connection section, an output-side connection section, and a fusible body. A terminal configured to be connected to the output-side connection section includes a bent section and protrusion sections. The housing includes a terminal accommodation section for accommodating the output-side connection. The accommodation space is enclosed with side walls standing upright on both sides of the output-side connection section in an insertion direction of the terminal and on a deep side thereof in the insertion direction of the terminal. The terminal accommodation section includes terminal insertion start-side movement restricting walls and a height-direction and terminal insertion start-side movement restricting wall.