Patent ID: 6748096
Filing Date: 2004-06-08
Classification: H04R

Abstract:
A bulb type speaker structure comprising a speaker, a circuit board, and a case body; whereinsaid speaker can receive signals transmitted from said circuit board and produce sound; said circuit board comprises an AD adaptor, a reception circuit, and an amplification circuit; said AD adaptor can transform the power supply of usual use into that used in the reception circuit and amplification circuit; said reception circuit can receive signals; said amplification circuit can enlarge the signals received and then transmit them to said speaker; said case body has a housing, a joint, and a safeguard; said housing is a case with hollow room for accommodating said circuit board and said speaker; the front end of said housing has an opening combined with said safeguard, which is established to be a board; on another end of said housing there established said joint, which has inside and outside conductors to form an analogue of bulb adapters; said circuit board is lodged inside of said housing; leads connect said inside conductor and said outside one of said joint to said AD adaptor respectively; said speaker is then set in the remaining space inside said housing and connected to said amplification circuit of said circuit board with leads; said safeguard is combined to the opening of said housing can seal and form the bulb type speaker structure.