An electromagnetic foot vibration energy harvester with gear mechanism with variable speed function

Abstract

The invention discloses a gear mechanism electromagnetic foot vibration energy harvester with the function of speed change, which comprises a box body, a first rack that passes through the bottom surface of the box body is arranged at one corner of the box body, and the box body starts from the first rack One side is provided with a first rotating shaft and a second rotating shaft in sequence, and the ends of the two rotating shafts are connected to the box body in rotation, and the box body is provided with a second rack and a driving gear laterally on one side of the second rotating shaft; One side of the rack is attached to the inner wall of the box, and the other side is provided with tooth lines and meshed with the driving gear; the driving gear is connected to the box through the third rotating shaft, and the top surface of the driving gear is provided with anti-symmetrical ratchets. claw; the top of the third rotating shaft is rotatably connected with a ratchet; the outer periphery of the ratchet is fixedly provided with a magnet, and the inner wall of the box is fixedly provided with a coil of the same height as the magnet corresponding to the magnet. The invention aims to provide an electromagnetic foot vibration energy harvester with variable speed adjustment function.

Description

technical field [0001] The invention relates to the technical field of vibration energy collection, in particular to a gear mechanism electromagnetic foot vibration energy collector with a speed changing function. Background technique [0002] With the improvement of living standards, people pay more and more attention to their own health. At the same time, the plantar sensor network that monitors the health and movement of the body has also attracted much attention. At present, these devices are driven by batteries, but the battery life is limited and needs to be replaced regularly, so it is impossible to achieve a "permanent" long-term operation mode. The foot sensor network integrated with vibration energy harvesting technology can realize long-term, maintenance-free and real-time condition monitoring. Vibration energy harvesting technology uses piezoelectric, electromagnetic, friction and other conversion mechanisms to convert vibration energy into electrical energy to ...

AI Technical Summary

Problems solved by technology

[0003] The existing electromagnetic foot harvester mainly has the following problems: under low-frequency excitation, such as when the user walks slowly, the output power is not high, the energy utilization rate is low, and because the structure cannot be changed, the output power under different excitations cannot be adjusted. In order to adapt to different loads, it cannot meet the actual needs. Therefore, there is an urgent need for an electromagnetic plantar vibration energy harvester with variable speed adjustment function.

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