A kinetic energy collection sensor

Abstract

The invention discloses a kinetic energy collecting sensor, and belongs to the technical field of energy recovery and utilization. The kinetic energy collecting sensor comprises a base, a plurality ofelectromagnetic coils are uniformly arranged on the top of the base, the electromagnetic coils are connected with external electrical components through wires, an energy storage pendulum and an acceleration pendulum are rotatably connected with the top center of the base, and the fixed end of the energy storage pendulum and the fixed end of the acceleration pendulum are on the same axis center; An acceleration bearing is arranged near the fixed end of the energy storage pendulum and meshes with the fixed end of the energy storage pendulum and the acceleration pendulum, respectively. Two permanent magnets are arranged on the accelerating pendulum, and the two permanent magnets face the electromagnetic coil with different magnetic poles respectively. The kinetic energy collecting sensor isprovided with an accelerating pendulum and an accelerating bearing, so that when the rotational speed of the energy storage pendulum is low, the energy is transferred to the accelerating pendulum through the accelerating bearing, the rotational speed of the accelerating pendulum is increased, the speed of the magnet cutting coil is accelerated, and the energy collecting efficiency is higher.

Description

technical field [0001] The invention belongs to the technical field of energy recovery and utilization, and in particular relates to a kinetic energy collection sensor. Background technique [0002] Energy harvesters can pick up environmental energy (such as radiation, temperature difference, vibration, etc.) and convert it into electrical energy to power the system. Compared with traditional electrochemical batteries, energy harvesters have the advantages of being economical, environmentally friendly and theoretically unlimited in life, so they are in line with the future development trend of energy and are very suitable for providing electrical energy for emerging fields such as the Internet of Things and wearable devices. Solar energy, electromagnetic radiation, temperature difference, vibration, etc. are all environmental energy sources that can be picked up. Compared with other environmental energy sources, vibration is a widely distributed energy source. Therefore, vib...

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Problems solved by technology

[0003] However, because the vibration sources in the environment generally have low frequencies and wide frequency bands, and the randomness of vibration amplitude, frequency and direction is large, the current resonant vibration energy harvesters generally have high operating frequencies, and often have a narrow operating frequency band and a single vibration direction. , poor environmental adaptability

The power output of the device is low in a low-frequency vibration environment, so the common problems are low energy collection efficiency and low output power density

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