A piezoelectric assembly, comprising: at least two piezoelectric components , each of the at least two piezoelectric components comprising: a main body portion having a set edge , a first surface , and a second surface opposite the first surface, main body portions of the at least two piezoelectric components being stacked, and a connecting portion protruding from the set edge of the main body portion and having a first surface and a second surface opposite the first surface ; the first surface of the main body portion and the first surface of the connecting portion being a positive electrode of each of the at least two piezoelectric components , the second surface of the main body portion and the second surface of the connecting portion being a negative electrode of each of the at least two piezoelectric components , first surfaces of connecting portions of the at least two piezoelectric components face a same direction; the connection portions of the at least two piezoelectric components are staggered along the set edge , characterized in that a positive circuit board is coupled to the positive electrode of each of the at least two piezoelectric components , wherein the positive circuit board is coupled to the first surface of the connecting portion ; and in that a negative circuit board is coupled to the negative electrode of each of the at least two piezoelectric components , wherein the negative circuit board is coupled to the second surface of the connecting portion . at least two piezoelectric components , each of the at least two piezoelectric components comprising: a main body portion having a set edge , a first surface , and a second surface opposite the first surface, main body portions of the at least two piezoelectric components being stacked, and a connecting portion protruding from the set edge of the main body portion and having a first surface and a second surface opposite the first surface ; the first surface of the main body portion and the first surface of the connecting portion being a positive electrode of each of the at least two piezoelectric components , the second surface of the main body portion and the second surface of the connecting portion being a negative electrode of each of the at least two piezoelectric components , first surfaces of connecting portions of the at least two piezoelectric components face a same direction; the connection portions of the at least two piezoelectric components are staggered along the set edge , characterized in that a main body portion having a set edge , a first surface , and a second surface opposite the first surface, main body portions of the at least two piezoelectric components being stacked, and a connecting portion protruding from the set edge of the main body portion and having a first surface and a second surface opposite the first surface ; the first surface of the main body portion and the first surface of the connecting portion being a positive electrode of each of the at least two piezoelectric components , the second surface of the main body portion and the second surface of the connecting portion being a negative electrode of each of the at least two piezoelectric components , first surfaces of connecting portions of the at least two piezoelectric components face a same direction; the connection portions of the at least two piezoelectric components are staggered along the set edge , characterized in that a positive circuit board is coupled to the positive electrode of each of the at least two piezoelectric components , wherein the positive circuit board is coupled to the first surface of the connecting portion ; and in that a negative circuit board is coupled to the negative electrode of each of the at least two piezoelectric components , wherein the negative circuit board is coupled to the second surface of the connecting portion . <EOS>