A wireless vibration sensor capable of self-recovering device vibration energy

By integrating a piezoelectric array and coil into the vibration sensor, the energy generated by the vibration of the substrate is used to charge the energy storage module, solving the problem of power supply difficulties in traditional vibration sensors and achieving efficient self-powering capability and long-term stable operation.

CN224353928UActive Publication Date: 2026-06-12GUANWEI MONITORING TECH WUXI CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANWEI MONITORING TECH WUXI CO LTD
Filing Date
2025-07-22
Publication Date
2026-06-12

AI Technical Summary

⚠Technical Problem

Existing vibration sensors face the problem of power supply difficulties. Traditional wired power supply is costly and difficult to apply to mobile devices or complex structures, while battery power supply has a limited lifespan, high replacement and maintenance costs, and poses an environmental pollution risk.

⚗Method used

Design a wireless vibration sensor that can self-recover the vibration energy of a device. By setting a piezoelectric array and coil on a substrate, the energy generated by the vibration of the substrate is used to charge the energy storage module. Combined with the parallel structure of the electromagnetic unit and the energy storage module, the synchronous excitation of multiple generator mechanisms can be realized, thereby improving the energy harvesting efficiency and providing a stable power supply.

🎯Benefits of technology

It improves the device's battery life and self-sufficiency reliability, reduces battery replacement frequency, lowers maintenance costs, is suitable for complex structures and mobile devices, and enables long-term maintenance-free operation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to industrial equipment state monitoring and internet of things sensing technical field discloses a kind of wireless vibration sensors that can self-recovery equipment vibration energy, including vibration energy acquisition module, energy storage module and vibration sensing unit;Vibration energy acquisition module, including electromagnetic unit and substrate, substrate is passed in electromagnetic unit and is arranged in laminated with electromagnetic unit, piezoelectric array is provided on substrate, coil is also wound on substrate, electromagnetic unit is used to generate the magnetic field covering coil;Energy storage module is respectively and piezoelectric array and coil electrically connected by parallel connection mode, when substrate produces vibration, piezoelectric array is based on the electric energy generated by vibration and charges energy storage module, coil generates electric energy by cutting magnetic induction line and charges energy storage module;Vibration sensing unit is connected with energy storage module, for obtaining operating electric energy by energy storage module and collecting vibration signal. The utility model solves the technical problem that existing vibration sensor itself power supply is difficult.
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