Self power generation apparatus based on reciprocating type movement mechanism

Abstract

The invention discloses a self power generation apparatus based on a reciprocating type movement mechanism. The self power generation apparatus comprises an armoured shell main body (1), a power generation and electricity storage module, and a pre-tightening force regulation module, wherein the armoured shell main body (1) is mounted on the reciprocating type movement mechanism and can perform reciprocating movement alongwith; the power generation and electricity storage module comprises permanent magnets (3) arranged on the periphery of corresponding guiding shafts (14) and coils (4) which are coaxially arranged on the periphery of the corresponding permanent magnets; the permanent magnets (3) are driven by the reciprocating movement of the armoured shell main body (1) to generate relative movement with the corresponding coils (4) so as to generate alternating current; and the pre-tightening force regulation module is arranged on the guiding shafts (14) and can regulate the frequency and amplitude of the reciprocating movement of the permanent magnets (3) on the corresponding guiding shafts (14). The self power generation apparatus not only can supply electric energy for a sensor of the reciprocating type movement mechanism in a long-term and effective manner, but also can adjust the response frequency of the apparatus according to the working frequency of the reciprocating type movement mechanism in real time, so as to utilize the reciprocating movement process to generate electricity at the highest efficiency.

Description

technical field [0001] The invention relates to the technical field of electronic measurement and sensing, in particular to a self-generating device based on a reciprocating motion mechanism. Background technique [0002] The temperature and pressure measurement of reciprocating mechanisms such as internal combustion engine pistons is crucial to monitoring the reliability and life of moving components, but it is difficult to achieve wired measurement for high-speed reciprocating components. Therefore, the sensing measurement of moving components usually adopts wireless measurement technology or storage measurement technology, and the power supply of sensors is a major difficulty in this technical field. [0003] At present, most of the sensing measurements of reciprocating mechanisms are powered by batteries, and the long-term work of the sensors is realized by frequently replacing the batteries. Battery power supply has a lifespan problem, and frequent battery replacement ...

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Problems solved by technology

[0005] (1) The wireless temperature sensor collects energy through the piezoelectric ceramic vibration power generation piece and the current induction power generation module to supply power to the entire sensor. This power supply method is difficult to apply to the high-speed reciprocating internal combustion engine piston, and the scope of application is limited;

[0006] (2) The wireless temperature sensor does not have the function of adaptively adjusting the power generation capacity according to the working frequency of the measured object, so its power generation efficiency is relatively low, and it does not have good adaptability

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