Electromagnetic type vibration energy collector based on Halbach array

Abstract

The invention discloses an electromagnetic type vibration energy collector based on a Halbach array. The electromagnetic type vibration energy collector based on the Halbach array comprises a fixed fastening base I, a movable fastening base II, a cantilever beam I, a cantilever beam II, the Halbach array, a square frame and an electromagnetic transducer, wherein the fastening base I and the fastening base II are correspondingly arranged; one end of the cantilever beam I is arranged on the fastening base I, and the other end of the cantilever beam I is provided with the square frame; the Halbach array is arranged in the square frame; one end of the cantilever beam II is arranged on the fastening base II, and the other end of the cantilever beam II is provided with the electromagnetic transducer; the electromagnetic transducer is located in a magnetic field of the Halbach array. The electromagnetic type vibration energy collector has the advantages of being simple in structure, sensitive in induction, small in overall size, high in induced voltage and output power and the like.

Description

technical field [0001] The invention belongs to the technical field of energy collection, and in particular relates to an electromagnetic vibration energy collector based on a Halbach array. Background technique [0002] With the rapid development of Internet of Things technology and microelectronics technology, wireless sensor networks have been widely used in environmental monitoring, data transmission and other fields. In recent years, China's high-speed rail technology has developed rapidly, and sensors in the railway network have played a key role in the safety and stability of trains. At present, sensors in sensor networks mainly rely on traditional batteries to power them. However, traditional batteries have limited storage capacity, short service life, and great environmental hazards, which hinder the further development of wireless sensor networks. [0003] Vibration energy is ubiquitous in the environment. Compared with solar energy, wind energy and other energy s...

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Problems solved by technology

Among them, the electrostatic vibration energy harvester needs to be driven by an external voltage, and its own power management circuit is complex, and the energy collected is often unable to meet the consumption of the circuit of the management power supply itself; the piezoelectric vibration energy harvester does not need an external voltage, and the output voltage is high, but The output current is small and the output power is low, such as Chinese invention patents: CN103840710A, CN103516257; the electromagnetic vibration energy harvester does not need external voltage, and the output power is high, such as Chinese invention patent: CN102983781A, but its volume is large, which is not conducive to actual use

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