Rail vibration energy collection device

Abstract

The invention discloses a rail vibration energy collection device, comprising a shell, a vibration pickup mechanism, a coil skeleton, an induction coil, a permanent magnet unit, an ultra-magnetostriction rod unit and a pedestal. The shell is placed between gravels and a rail; the vibration pickup mechanism is placed at the top of the shell and the lower end is a spherical structure; the coil skeleton is placed in the shell; the induction coil is wound on the coil skeleton and is externally connected to a circuit through the shell; the permanent magnet unit includes three segments of cylindrical permanent magnets which are vertically arranged in the coil skeleton; the ultra-magnetostriction rod unit comprises two segments of cylindrical ultra-magnetostriction rods which are vertically arranged in the coil skeleton and among the cylindrical permanent magnets and separate the three segments of cylindrical permanent magnets; a disc spring is located at the upper side of the spherical structure of the vibration pickup mechanism and is fixed to the vibration pickup mechanism; and the pedestal is located at the bottom of the shell. The rail vibration energy collection device provided by the invention can collect vibration energy generated by the rail and convert the vibration energy into electric energy.

Description

technical field [0001] The invention relates to the technical field of self-harvesting energy collection, in particular to a rail vibration energy collection device. Background technique [0002] With the expansion of the scope of railway construction in our country, it is necessary to build tunnels in areas with complex terrain. At present, wired circuits and mobile terminals are mainly used at home and abroad to display the situation in railway tunnels. The circuits are easily affected by the outside world and cause monitoring blind spots in the tunnel, which brings safety hazards to trains. For most railway tunnels with complex terrain and remote areas, the problems of many detection nodes, difficult cable erection and high maintenance costs are difficult to solve through traditional energy supply systems. In this context, the collection of rail vibration energy has become a domestic A hot topic of research by foreign scholars. Existing vibration energy power generation...

AI Technical Summary

Problems solved by technology

However, the piezoelectric type has a short service life and low conversion efficiency, the electromagnetic type has a large size, and the electrostatic type needs to provide an external power supply. The above three types are not suitable for rail vibration energy collection.

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