A vibration energy harvesting device

Abstract

The invention discloses a vibration energy collecting device comprising a shell, an upper transmission shaft, a lower transmission shaft, a coil support, an elastic mechanism, a magnet fixing frame, a strong magnet and an electric energy storage mechanism. The vibration energy collecting device is small in size and long in working life; through the connection of the elastic mechanism and the magnet fixing frame, electric energy is converted at the maximum efficiency, and energy is efficiently stored; in addition, the change rate of magnetic flow is increased by using the strong magnet, and the power output is increased through optimizing an electromagnetic structure under the condition that the output voltage index requirement is met. An energy storage module of the vibration energy collecting device has an automatic power-off detection function, and power can be automatically switched off after the electric quantity is stored to be full, so that the condition that service life shortening and safety threat caused by overhigh electric energy storage in the electric energy storage process of an electric energy storage device is avoided.

Description

technical field [0001] The invention relates to the technical field of vibration energy collection, in particular to a vibration energy collection device. Background technique [0002] With the development of the economy and the progress of society, new technologies are changing our lives with each passing day, but what comes with it is the continuous increase of people's demand for resources. Fossil energy, which has long been the main source of human energy, is constantly being consumed and depleted, and the energy crisis will continue to intensify. People are urgently seeking alternative energy sources. Vibration is the most common form of mechanical energy in the human living environment. Pedestrians walking, vehicles driving, physical exercise, etc., once there is a relative displacement between objects, vibration will occur. These vibrational energies are potentially available energies, and the collection of these vibrational energies can provide a feasible way to rel...

AI Technical Summary

Problems solved by technology

The more turns of the coil, the higher the output voltage will be obtained, but due to the limitation of the internal resistance of the coil, the more turns of the coil, the ability to form current to the outside will decrease

And from a mechanical point of view, when the speed is constant, the greater the mass of the object, the greater the kinetic energy. Therefore, when light objects such as springs and coils are connected, the maximum kinetic energy of the vibrating object cannot be collected, so the kinetic energy of the object is transformed into electrical energy. less effective

Images