Manufacturing method of multi-layer piezoelectric loudspeaker oscillator and multi-layer piezoelectric loudspeaker oscillator

• Main Authors: ZHOU CHANGYIN, WEN LI, ZHONG YOULIANG, OU MING, JIANG ZHISHUI, TIAN WEI, ZHOU TAO
• Format: Patent
• Language: Chinese; English
• Published: 10.07.2013
• Subjects: DEAF-AID SETS; ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS; PERFORMING OPERATIONS; PUBLIC ADDRESS SYSTEMS; TRANSPORTING

The invention discloses a manufacturing method of a multi-layer piezoelectric loudspeaker oscillator and the multi-layer piezoelectric loudspeaker oscillator, and belongs to the field of piezoelectric elements. The manufacturing method of the multi-layer piezoelectric loudspeaker oscillator comprises the following steps of carrying out wet grinding on piezoelectric ceramic powder, adding adhesives into the piezoelectric ceramic powder after grinding, using a tape casting process to obtain tape casting blank pieces, using a lamination sintering process to process the tape casting blank pieces to obtain a single ceramic piece; using a mode of adhesion exudation electrode to prepare electrodes on two surfaces of the single ceramic piece so as to obtain a single piezoelectric plate; and using an adhesion process to bond N piezoelectric plates layer by layer according to a connecting method of external electrodes to obtain an N-layer piezoelectric plate, heating the N-layer piezoelectric plate to solidify the N-la