Self-service rotating dining table capable of automatically harvesting energy

Abstract

The invention provides a self-service rotating dining table capable of automatically harvesting energy. The self-service rotating dining table is used for self-service dining of many people; the self-service rotating dining table comprises an energy storage element, an energy collector and a rectifying circuit, wherein the energy storage element is used for storing energy, the energy collector isused for collecting the energy produced by vibration and storing the collected energy into the energy storage element; the rectifying circuit is used for converting unstable alternating current into stable current through the rectifying circuit and then transmitting the stable current into the energy storage element for storage. The self-service rotating dining table capable of automatically harvesting the energy has the advantages that when an external vibration frequency is not same as or close to an inherent frequency of an electrotransformation structure, a self-feedback structure of an energy converter can interact with a frequency modulation structure, so that the inherent frequency of the electrotransformation structure is close to the external vibration frequency, thereby being capable of greatly improving the efficiency of converting the vibration energy into electric energy and the use ratio of the vibration energy.

Description

technical field [0001] The invention relates to the technical field of sensor applications, in particular to a self-service rotating table with automatic energy capture. Background technique [0002] With the gradual increase of people's awareness of energy conservation, especially in the current situation that countries around the world are facing increasing energy shortages, the research field of piezoelectric materials has been paid more and more attention by people, and has become a new direction in the field of energy research. When the piezoelectric material vibrates back and forth, charges are generated on the upper and lower surfaces of the piezoelectric material, and the energy harvester is a device that can convert mechanical energy into electrical energy, and can collect the charges generated by the piezoelectric material. Large-scale revolving tables for buffets are driven by motors. During the operation of the motors, a certain degree of vibration will be genera...

AI Technical Summary

Problems solved by technology

Large revolving tables for buffets are driven by motors. During the operation of the motors, a certain degree of vibration will be generated, resulting in a lot of energy waste. People are beginning to try to install energy harvesters on this self-service revolving tables

However, piezoelectric materials usually appear as layered materials and are attached to a specific mechanical structure. The fixed mechanical structure usually has a fixed resonance frequency, so that is to say, the sensitive frequency of the piezoelectric energy harvester is usually fixed. Once If the external vibration deviates from this frequency, the piezoelectric collector will not work well

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