Electromagnetic vibration energy collector

A vibration energy harvesting and energy harvester technology, applied in electrical components, electromechanical devices, etc., can solve the problems of low output power density, large randomness of vibration amplitude, frequency and direction, low vibration source frequency, etc. The effect of large random direction, strong adaptability to vibration environment and wide application range

Active Publication Date: 2016-11-23
SUZHOU UNIV
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  • Claims
  • Application Information

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Problems solved by technology

However, because the vibration sources in the environment generally have low frequencies and wide frequency bands, and the randomness of vibration amplitude, frequency and direction is large, the current resonant vibration energy harvesters generally have high operating frequencies (greater than 10 Hz) and often have narrow operating frequency bands. a...

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Embodiment Construction

[0026] As mentioned in the background technology section, due to the generally low frequency and wide frequency band of the vibration source in the environment, the randomness of the vibration amplitude, frequency and direction is large, the current resonant vibration energy harvester generally has a high operating frequency (greater than 10Hz), and often It has a narrow working frequency band and a single vibration direction, and poor environmental adaptability. The power output of the device is low in a low-frequency vibration environment less than 10 Hz, so the common problems are that the applicable vibration range is narrow and the output power density is low, which makes it difficult to meet the self-power supply requirements of wireless sensor nodes.

[0027] Aiming at the deficiencies in the prior art, the present invention provides an electromagnetic vibration energy harvester. By introducing the stator magnet and the rotor magnet, the mutual attraction between the mag...

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Abstract

The invention discloses an electromagnetic vibration energy collector. According to the electromagnetic vibration energy collector, a stator magnet and a rotor magnet are introduced, the rotor magnet rotates around the stator magnet and generates relative movement with electromagnetic coils which are circumferentially distributed through mutual attraction between the magnets under outside low-frequency random excitation, therefore, electric energy output is generated, and efficient energy collection is achieved. The electromagnetic vibration energy collector can be suitable for energy collection of multiple complex random vibration environments and is low in working frequency and wide in frequency band and application range.

Description

technical field [0001] The invention belongs to the technical field of electric energy collector design, and in particular relates to an electromagnetic vibration energy collector. Background technique [0002] Wireless sensor network technology has been widely used in military, intelligent transportation, environmental monitoring and so on. The complexity of the sensor node deployment environment and the particularity of the actual application requirements determine that the node power supply cannot be powered by the normal power system, and the battery power supply method has problems such as high cost, short life, and troublesome replacement. [0003] There are a variety of abundant energy sources in the natural environment. Energy harvesting technology is a technology that obtains energy from the external environment and converts it into electrical energy. It is a potential way to solve the power supply problem of wireless sensor nodes. Collecting environmental kinetic ...

Claims

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Application Information

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IPC IPC(8): H02K35/02
CPCH02K35/02
Inventor 刘会聪陈涛林佳宏孙立宁
Owner SUZHOU UNIV
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