A multi-layer multi-degree-of-freedom piezoelectric-electromagnetic composite vibration energy harvesting device
An electromagnetic composite, degree-of-freedom technology, applied in piezoelectric/electrostrictive or magnetostrictive motors, electromechanical devices, generators/motors, etc., can solve the problems of limited vibration energy collection and conversion efficiency, and improve Energy conversion efficiency and energy capture effect, high environmental adaptability effect
Active Publication Date: 2020-12-29
NINGBO UNIV
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Problems solved by technology
However, there is also the problem that vibration energy harvesting devices based on a single conversion mechanism have limited collection and conversion efficiency of vibration energy in the environment.
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[0024] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.
[0025] refer to Figure 1 to Figure 5 As shown, a multi-layer multi-degree-of-freedom piezoelectric-electromagnetic composite vibration energy harvesting device in an embodiment provided by the present invention includes a bracket on which a longitudinal energy harvesting mechanism and a plane energy harvesting mechanism are stacked. The energy mechanism includes the first layer of piezoelectric-electromagnetic composite vibration energy-harvesting branch, the third layer of piezoelectric-electromagnetic composite vibration energy-harvesting branch and column 9, the first layer of piezoelectric-electromagnetic composite vibration energy-harvesting branch and the third layer of piezoelectric The electromagnetic composite vibration energy harvesting branch is respectively arranged on the upper end and the lower end of the column 9, and the planar energy...
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The invention discloses a multilayer multi-degree-of-freedom piezoelectric-electromagnetic composite vibration energy harvesting device including a support, longitudinal energy harvesting mechanisms and planar energy harvesting mechanisms are arranged on the support in a laminated mode. The longitudinal energy harvesting mechanism comprises a first layer of voltage electromagnetic composite vibration energy harvesting branch; the planar energy harvesting mechanism comprises a second layer of voltage electromagnetic composite vibration energy harvesting branch, the longitudinal energy harvesting mechanism is used for capturing vertical longitudinal vibration energy, and the second layer of voltage electromagnetic composite vibration energy harvesting branch is used for capturing vibration energy on a plane perpendicular to the vertical longitudinal direction. Multi-degree-of-freedom vibration energy conversion and energy harvesting are achieved, the energy conversion efficiency and theenergy harvesting effect are improved, and higher environmental adaptability is achieved.
Description
technical field [0001] The invention relates to the technical field of energy collection, in particular to a multi-layer multi-degree-of-freedom piezoelectric-electromagnetic composite vibration energy harvesting device. Background technique [0002] In recent years, the rapid development of science and technology has promoted the rapid development of micro-electromechanical systems (MEMS), system-on-chip (SOC), wireless sensor networks (WSN) and low-power embedded technologies, and low power consumption, distributed, The advantages of low cost and self-organization have brought technological changes to traditional information perception technology. However, the conventional chemical battery power supply method is not suitable for the rapid development of information innovation technology due to its short life, frequent and regular replacement, and easy environmental pollution. The self-supply method, which can convert the vibration excitation in the environment into usable...
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IPC IPC(8): H02K35/02H02N2/18
CPCH02K35/02H02N2/181H02N2/186
Inventor 顾霆娄军强黄珏皓杨浩崔玉国马剑强
Owner NINGBO UNIV