High-thrust piezoelectric driving device

• Main Authors: WANG ZHENHUA, GONG WEI, PENG RENQIANG, LIU RUDE
• Format: Patent
• Language: Chinese; English
• Published: 04.10.2022
• Subjects: CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; GENERATION

The invention provides a high-thrust piezoelectric driving device, and the device comprises an outer housing which is provided with a first accommodation cavity, and the first accommodation cavity is provided with a first cavity wall and a second cavity wall; the inner shell is detachably arranged in the first accommodating cavity and is provided with a second accommodating cavity, the inner shell comprises a first elastic part and a second elastic part, the first cavity wall and the first elastic part form a first mounting space, and the second cavity wall and the second elastic part form a second mounting space; the piezoelectric driving part is arranged in the second accommodating cavity and comprises a first piezoelectric stack group, a second piezoelectric stack group and a rotor, and the first piezoelectric stack group and the second piezoelectric stack group are connected with the first elastic part and the second elastic part respectively; and at least two magnetic pre-tightening assemblies, at least