Abstract: Proposed is a gas preheating torch that projects a flame. A hollow adaptor module is connectable to a portable gas container. A gas valve body module has a gas flow path to discharge gas introduced from the portable gas container. A gas temperature change module includes a gas inlet pipe connected to the gas valve body module, a bent gas pipe connected to the gas inlet pipe, and a gas outlet pipe connected to the bent gas pipe and the gas valve body module. A heat exchange promotion module enables heat exchange between gas flowing through the gas inlet pipe and gas flowing through the gas outlet pipe. A burner module is connected to the gas valve body module and located behind the bent gas pipe to spray gas discharged from the gas valve body module, project a flame, and heat the bent gas pipe.

Abstract: A battery pack includes unit cells disposed side-by-side, a connection board connecting the unit cells in series and/or in parallel, the connection board including position fixing portions on a first surface, a protection circuit module electrically connected to the connection board, and a first connecting tap and a second connecting tap disposed on the connection board to electrically connect the unit cells and the connection board. At least one of the first connecting tap and the second connecting tap includes one end connected to the unit cells and an other end, the other end including a plurality of bridges at a lower side thereof. The bridges are inserted into the position fixing portions.

Abstract: A battery pack includes unit cells disposed side-by-side, a connection board connecting the unit cells in series and/or in parallel, the connection board including position fixing portions on a first surface, a protection circuit module electrically connected to the connection board, and a first connecting tap and a second connecting tap disposed on the connection board to electrically connect the unit cells and the connection board. At least one of the first connecting tap and the second connecting tap includes one end connected to the unit cells and an other end, the other end including a plurality of bridges at a lower side thereof The bridges are inserted into the position fixing portions.