Piezoelectric vibration power generation device and manufacturing method thereof

Abstract

The invention discloses a manufacturing method of a piezoelectric vibration power generation device, which includes: (1) Obtaining piezoelectric component subunits in batches through laser welding, and installing piezoelectric sheets and free vibrators on each piezoelectric component subunit to obtain piezoelectric components. component; (2) Provide a base with a hollow structure, and the hollow structure of the base forms a receiving cavity; (3) Provide at least two piezoelectric components, install the piezoelectric components on the base parallel to each other, and make the piezoelectric components The free vibrator of the component is accommodated in the accommodation cavity; (4) Provide a bottom cover, and set the corresponding covers of the bottom cover on both ends of the base; (5) Provide at least two conductive soldering pins, conductive soldering pins and piezoelectric components Connect and pass through one of the bottom covers to form a conductive electrode. Since laser welding is used to obtain piezoelectric component subunits in batches, precise alignment is facilitated during the assembly and production process, thereby improving assembly accuracy. Mass production greatly improves production efficiency, thereby reducing production costs. In addition, the invention also discloses a piezoelectric vibration power generation device.

Description

Technical field [0001] The invention relates to the field of micro-energy technology, in particular to a piezoelectric vibration power generation device and a manufacturing method thereof. Background technique [0002] With the rapid development and application of micro-nano electromechanical systems (MEMS, NEMS) technology, it has driven the development of wireless sensor network technology, and has gradually realized commercial applications in the fields of industry, aerospace, communications, commerce, consumption and military. Still facing a very serious problem, that is, how to ensure the power supply of these wireless sensor units and mobile communication devices. The traditional method is to use batteries. However, due to the large number of unit devices constituting wireless sensor networks and mobile communication equipment, their small size and scattered locations, this requires their power supply devices to be small in size, high in efficiency, easy to integrate, unatt...

AI Technical Summary

Problems solved by technology

Existing micro power generation devices generally include piezoelectric vibration power generation devices, magnetoelectric vibration power generation devices or electrostatic vibration power generation devices. No matter what kind of micro power generation devices, it is a common method to use adhesives for assembly and production. Problems of poor precision, unstable quality and high assembly cost

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