Abstract: The present invention discloses a multi-functional battery box, belonging to the field of power supply devices; a multi-functional battery box, comprising: a case, having an accommodating cavity; a printed circuit board, located in the accommodating cavity and permanently connected with the case; a power source, located in the accommodating cavity and in contact with the printed circuit board; an electro-acoustic transducer, permanently arranged on the printed circuit board and electrically connected with the printed circuit board; a spring piece, arranged on the case and in contact with the printed circuit board; a change-over switch, flexibly connected with the printed circuit board; the present invention has two switching modes that can be flexibly switched, making the battery box easier and more flexible to use, reducing the loss to the switch and prolonging the life of the battery box.

Abstract: Disclosed is a luminous necklace structure. The present invention adopts the following technical solution: a luminous necklace structure, comprising a battery case; a chain rope with both ends connected with the battery case; pendant(s), at least one of which is connected with the chain rope, so that the battery case can supply power to the chain rope and make the pendant(s) luminous. The beneficial effects of the present invention are as follows: the chain rope and the light shade adopt diversified connecting methods which are more flexible and convenient for use, the movable connection between the light holder and the light shade makes the luminophor changeable, thus prolonging the service life of the luminous necklace and meanwhile saving the costs, and the same luminous necklace is allowed to be provided with either luminous or non-luminous light shade, thus enhancing the luminous effect of the necklace.

Abstract: The present invention relates to as battery box comprising a housing and a power supply component mounted within the housing. Through holes are provided respectively on both ends of the housing to lead a wire into the housing to connect with the power supply component. The power supply includes a circuit hoard and a battery. The housing includes an upper housing body and lower housing body which are detachably connected with each other. The upper housing body and the lower housing body could be engaged with each other to form a receiving cavity to receive the power supply component. A contact is provided on the circuit board to be in communication with the battery and correspondingly, a flexible sheet is provided on the upper housing body to press the contact. The present invention further relates to a necklace provided with the said battery box.

Abstract: The present invention relates to as battery box comprising a housing and a power supply component mounted within the housing. Through holes are provided respectively on both ends of the housing to lead a wire into the housing to connect with the power supply component. The power supply includes a circuit hoard and a battery. The housing includes an upper housing body and lower housing body which are detachably connected with each other. The upper housing body and the lower housing body could be engaged with each other to form a receiving cavity to receive the power supply component. A contact is provided on the circuit board to be in communication with the battery and correspondingly, a flexible sheet is provided on the upper housing body to press the contact. The present invention further relates to a necklace provided with the said battery box.