A magnetostrictive vibration generator
A technology of vibration power generation and magnetostriction, which is used in electromechanical devices, piezoelectric effect/electrostrictive or magnetostrictive motors, generators/motors, etc., to achieve the effect of convenient preload adjustment
Active Publication Date: 2016-06-08
SHENYANG POLYTECHNIC UNIV
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Problems solved by technology
[0005] Aiming at the shortcomings of the existing magnetostrictive vibration power generation technology, the present invention designs a giant magnetostrictive rod as the core component, uses a coil to provide a pre-magnetized magnetic field for the giant magnetostrictive rod, and uses another coil to pick up the generated Electric energy, with electric pure iron material as the yoke, the magnetostrictive power generation device that can work in the vertical direction and the horizontal direction, in order to achieve the purpose of the magnetostrictive power generation device to convert the external vibration into electric energy
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[0038] Embodiment: the size of the giant magnetostrictive rod 7 in the present embodiment is Φ8 * 60mm, the height and the number of turns of the pre-magnetization coil 14 are respectively 0.072m and 200 turns, and the outer diameter of the enameled wire strip of the pre-magnetization coil 14 is 0.86mm. The height and the number of turns of the induction coil 16 are 0.072m and 600 turns respectively, the outer diameter of the enameled wire tape of the induction coil 16 is 0.6mm, the disc spring 19 is an A series disc spring, and the Hall sensor 11 is a model produced by Honeywell. It is a SS496B linear Hall sensor with a sensitivity of 2.5mv / G. Figure 4 It is a schematic diagram of the experimental system, and the main parameters of the main components are as follows: (1) BP4620 high-speed power supply is selected, and the minimum adjustable current is ±0.001A. (2) Select the Tektronix MSO2000B oscilloscope. (3) JZK-20 exciter 46 is selected, its maximum output force is 200N...
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The invention relates to a magnetostrictive vibration power generation device, which belongs to the field of magnetostrictive power generation. The device uses a giant magnetostrictive rod as a core component, and the overall structure is an axisymmetric structure; the lower yoke is installed on the upper part of the bottom cover, and the main magnet The yoke is installed on the upper part of the lower yoke, the pre-magnetized coil bobbin wound with the pre-magnetized coil is installed in the inner cavity of the main yoke, the induction coil bobbin wound with the induction coil is installed in the inner hole of the pre-magnetized coil bobbin, and the lower magnetic block is installed In the inner hole of the induction coil frame, the giant magnetostrictive rod is installed in the circular groove of the lower magnetic block, the upper yoke is installed on the pre-magnetized coil frame and the induction coil frame, and the disc spring is installed on the vibration input shaft. At the upper surface of the , the preload cover passes through the upper part of the vibration input shaft. The magnetostrictive vibration power generation device of the present invention overcomes the shortcomings of the existing magnetostrictive vibration power generation technology, and can realize the power generation process of converting external vibration input into electric energy output, which is suitable for popularization and application.
Description
technical field [0001] The invention belongs to the field of magnetostrictive power generation, and in particular relates to a magnetostrictive power generation device which uses a giant magnetostrictive rod as a core element to generate electric energy by absorbing vibrations. Background technique [0002] In high-tech fields such as precision and ultra-precision machining, micro-machine manufacturing, and laser guidance, electronic devices such as distributed sensors, digital processors, and portable wireless communication systems play an important role. At present, the electrical energy required for the operation of these electronic devices is mainly provided by storage batteries or disposable chemical batteries. However, due to the limited capacity of the battery, it cannot meet the needs of the system for a long time, let alone the needs of the rapidly developing integrated circuits; moreover, the capacity of the battery is easily affected by temperature, which will cau...
Claims
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IPC IPC(8): H02K35/02H02N2/02
Inventor 刘慧芳何晓峰张禹王文国兰冰
Owner SHENYANG POLYTECHNIC UNIV