A circuit structure includes a signal substrate having a signal trace formed thereon and a microstrip substrate disposed above the signal substrate that includes a microstrip trace formed thereon and a hole passing through it. The circuit structure also includes a conductor passing through and substantially filling the hole passing through the microstrip substrate and electrically contacting the signal trace on the signal substrate and a flat wire connector electrically connecting the microstrip trace to a first end of the conductor, the flat wire connector being arranged such that a gap is formed between the flat wire connector and a top surface of the microstrip substrate.

An electronic apparatus includes a wiring board. The wiring board includes a wiring and a through-hole and is provided by dividing a multi-board providing board into the wiring board. The electronic apparatus further includes a circuit component having a surface mounting structure, mounted to the wiring board, and electrically connected to the wiring. A side wall of the wiring board has a cut portion that is provided when cutting and dividing the multi-board providing board. In the wiring board, the through-hole is formed adjacent to the cut portion without arranging the circuit component between the cut portion and the through-hole.

The present disclosure relates to a battery module comprising: a plurality of single cells arranged in sequence; a sampling circuit board disposed opposite to a top of the single cells and provided with a conductive hole and a conductive sleeve disposed in the conductive hole; and a busbar having a connecting plate and a conductive post extending from the connecting plate, and the connecting plate being connected to the single cells, wherein the busbar is electrically connected to the sampling circuit board by insertion of the conductive post into the conductive sleeve. The battery module according to embodiments of the present disclosure includes a busbar and a sampling circuit board electrically connected with each other, which have a stable and reliable connection and a high impact resistance ability, thereby improving an operational reliability and safety of the battery module.

A conductive terminal includes a holding portion, a positioning portion and a welding portion. The positioning portion is connected to the holding portion and includes two positioning branches separated by a first trench. The welding portion is connected to the positioning portion and the positioning portion is located between the holding portion and the welding portion. The welding portion includes two welding branches separated by a second trench, wherein the first trench is communicated with the second trench and each of the welding branches is connected to one of the positioning branches. The positioning portion has a first outer diameter, and a second outer diameter on at least part of the welding portion is greater than the first outer diameter. An electrical connecting structure is further provided.

A conductive terminal includes a holding portion, a positioning portion and a welding portion. The positioning portion is connected to the holding portion and includes two positioning branches separated by a first trench. The welding portion is connected to the positioning portion and the positioning portion is located between the holding portion and the welding portion. The welding portion includes two welding branches separated by a second trench, wherein the first trench is communicated with the second trench and each of the welding branches is connected to one of the positioning branches. The positioning portion has a first outer diameter, and a second outer diameter on at least part of the welding portion is greater than the first outer diameter. An electrical connecting structure is further provided.

An electric motor includes an assembly for connection to a printed circuit having a conductive insert through which connection holes pass, and a coil assembly having electrical connections terminated by connection plugs. The motor further includes connection pieces comprising a rod, the outer cross-section of which matches the cross-section of the connection holes, the connection piece having, at the proximal end thereof, a shoulder with a cross-section greater than the cross-section of the connection holes, the opposite end having a slot extending up to the shoulder, and including an opening on the distal end with a width greater than or equal to the cross-section of the connection plugs and at least one narrowing with a width less than the cross-section of the connection plugs, in order to ensure the expansion of the collar of the connection piece engaged in the hole of the printed circuit insert.

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.

Printed circuit boards (PCBs) may include a heat sink configured to draw heat from a surface-mounted component through the PCB toward a side of the PCB opposite a side having the surface-mounted component. The heat sinks may be single piece components that extend at least partially through the PCB. In some embodiments, the PCB may include connectors that interface between the PCB and a heat sink, or possibly other components.

A preformed solder-in-pin system for use with electrical connectors. The preformed solder-in-pin system generally includes a connector pin having an open cavity at one end, into which a preformed solder member can be first inserted and then pressed, rather than melted, in place, such that voids and air spaces within the cavity are eliminated. The preformed solder-in-pin system can be assembled in high quantities, where the preformed solder members are placed in a fixture and the fixture is placed on a shaker table, so that large numbers of connector pins, pre-installed in connector grommets, can be inserted largely simultaneously.

A circuit board that includes a substrate that has an upper surface on which a circuit pattern is formed, and a lower surface to which a plurality of bus bars that are spaced apart are fixed; a placement through hole that extends through the upper surface and the lower surface and faces a bus bar of the plurality of bus bars and in which an electronic component is placed; and a terminal conductor foil that protrudes inward into the placement through hole from the lower surface and to which a terminal of the electronic component is connected.