A conducting arrangement comprises a first electrical conductor element having a first contact section with a first material and a second electrical conductor element having a second contact section welded to the first contact section. A side of the second contact section facing the first contact section has a predefined microstructure with a recess. The first material of the first contact section at least partially fills the recess of the predefined microstructure.

A flexible printed wiring board includes a flexible insulating layer, a conductor layer formed on a surface of the flexible insulating layer, and a metal body having a columnar shape and fitted in a hole penetrating through the flexible insulating layer and the conductor layer such that the metal body is formed of a welding base material and has an end portion formed to be joined to an electrode of a battery by welding. The welding base material of the metal body of the flexible printed wiring board includes the same material as the electrode of the battery.

An environmentally sealed connector for connecting a spring-loaded terminal to a flexible circuit includes a spring-loaded terminal and a connector cap having a terminal cavity receiving a portion of the spring-loaded terminal therein in order to electrically couple the spring-loaded terminal to the flexible circuit. A connector base is releasably coupled to the connector cap and covers the terminal cavity and the portion of the spring-loaded terminal therein. An elastic member is disposed between the connector cap and the connector base in sealing engagement therewith and surrounds the terminal cavity and the portion of the spring-loaded terminal.

An environmentally sealed connector for connecting a spring-loaded terminal to a flexible circuit includes a spring-loaded terminal and a connector cap having a terminal cavity receiving a portion of the spring-loaded terminal therein in order to electrically couple the spring-loaded terminal to the flexible circuit. A connector base is releasably coupled to the connector cap and covers the terminal cavity and the portion of the spring-loaded terminal therein. An elastic member is disposed between the connector cap and the connector base in sealing engagement therewith and surrounds the terminal cavity and the portion of the spring-loaded terminal.

A connecting method includes: arranging the connection terminal such that a rear surface of a base portion in a flat plate shape of the connection terminal comes into contact with a front surface of the flexible substrate; with a rising portion of the connection terminal extending from the rear surface side of the base portion toward the base portion and a tip end bending portion of the connection terminal extending from a tip end of the rising portion in a direction inclined with respect to the rising portion, displacing the rising portion toward the base portion so that the tip end bending portion protrudes from a front surface of the base portion; and holding a part of the flexible substrate between a pressing portion formed at the rising portion and a pressed portion formed at the base portion, whereby the conductive portion of the flexible substrate is electrically connected to at least one of the pressing portion and the pressed portion.

A connecting method includes: arranging the connection terminal such that a rear surface of a base portion in a flat plate shape of the connection terminal comes into contact with a front surface of the flexible substrate; with a rising portion of the connection terminal extending from the rear surface side of the base portion toward the base portion and a tip end bending portion of the connection terminal extending from a tip end of the rising portion in a direction inclined with respect to the rising portion, displacing the rising portion toward the base portion so that the tip end bending portion protrudes from a front surface of the base portion; and holding a part of the flexible substrate between a pressing portion formed at the rising portion and a pressed portion formed at the base portion, whereby the conductive portion of the flexible substrate is electrically connected to at least one of the pressing portion and the pressed portion.

A cable includes a cable core formed of an electrically conductive material and an insulation at least partially encasing the cable core. The cable core is exposed in a contact zone in which the cable contacts an electrical conductor. A surface of the contact zone is filled substantially flush with a cable surface of the insulation.

A battery connection module is adapted to connect a battery pack, the battery connection module comprises: a carrying tray; a plurality of busbars mounted on the carrying tray and adapted to electrically connect a plurality of batteries of the battery pack; a flexible circuit board mounted on the carrying tray and mechanically and electrically connected to the plurality of busbars, the flexible circuit board having a frame-shaped portion with an opening, a flexible mating portion being provided in the opening of the frame-shaped portion; and a battery management system mounted on the carrying tray, positioned above the flexible circuit board and comprising a flexible circuit board connector; the flexible mating portion extending into the opening and being reversely bent and mated with the flexible circuit board connector on the battery management system. These components are integrated to an integrated module that facilitates subsequent assembling and use.

A battery connection module is adapted to connect a battery pack, the battery connection module comprises: a carrying tray; a plurality of busbars mounted on the carrying tray and adapted to electrically connect a plurality of batteries of the battery pack; a flexible circuit board mounted on the carrying tray and mechanically and electrically connected to the plurality of busbars, the flexible circuit board having a frame-shaped portion with an opening, a flexible mating portion being provided in the opening of the frame-shaped portion; and a battery management system mounted on the carrying tray, positioned above the flexible circuit board and comprising a flexible circuit board connector; the flexible mating portion extending into the opening and being reversely bent and mated with the flexible circuit board connector on the battery management system. These components are integrated to an integrated module that facilitates subsequent assembling and use.

A connector assembly includes first and second connectors. Each connector includes a plurality of terminals A1 through An, n is an integer 2, sequentially arranged in a row. The connector assembly also includes a flat cable that includes a plurality of electrical conductors electrically connecting the terminals of the first and second connectors. For each i from 1 to n, terminal Ai of the first connector is electrically connected, via a different electrical conductor of the cable, to the terminal Ai of the second connector. The cable includes a bend greater than about 150 around at least two fold lines that extend across the entire width of the cable. Each of the first and second connectors is configured to mate with the same mating connector, such that when each of the first and second connectors mates with the same mating connector in a same plan view, the An terminals are both either on a left or a right side of the A1 terminals.