39results about How to "Stable energy output" patented technology

The invention discloses phase change material microcapsules encapsulated by microtubules and a preparation method thereof. The phase change material microcapsules consist of a phase change material, curtal microtubules and polymer, wherein the curtal microtubules are obtained by cutting a hollow tubular natural fiber into fibers sections with a length of 0.1mm-5cm; the diameter of the hollow tubular natural fiber is 0.1-1,000 mu m; and the phase change material is encapsulated in the curtal microtubules, and the curtal microtubules are enwrapped in the polymer. The adopted encapsulating pipe is a natural microtubule with low cost and high availability; the large hollowness of the microtubule ensures large energy storage density of the microtubule, so the encapsulation structure ensures stable energy output; and fine nanometer tubular structure ensures quick heat transfer, and the heat and chemical stability contribute to long-term use.

An energy storing device is disclosed. In the energy storing device of the present invention, energy from an energy generating unit is stored in the form of spring torsion and then is output steadily. The energy storing device of the present invention includes a plurality of cog-wheels, a plurality of torsion magnitude limiting units, a plurality of single-directional input bearings, a plurality of energy storing units and a plurality of speed enhancing cog-wheels. Each of the energy storing units includes at least two end rotational disc portions, which are connected with each other co-axially. A leaf spring unit is provided between each pair of rotational disc portions and one end of the leaf spring unit is bent in an opposite direction. In addition, the energy storing units may be connected in series or in parallel to increase the efficiencies in energy storage and energy output.

The invention provides a frequency conversion control method and device of a wireless charging system and a storage medium. The wireless charging system comprises a transmitting end and a receiving end, wherein the transmitting end is provided with a phase-shift full-bridge control circuit. The method comprises the following steps: obtaining a phase-shift angle of the transmitting end in real timewhen the wireless charging system is in a stable charging state; and when the phase shift angle is greater than a first preset phase shift angle, adjusting the current resonant frequency of the transmitting end, and increasing the frequency difference between the current resonant frequency of the transmitting end and the preset resonant frequency; by detecting phase shift angle parameter of the transmitting end and a charging current parameter of a receiving end, deducing the distance between the current transmitting coil and the receiving coil; when the distance between the transmitting coiland the receiving coil is too short, adjusting the current working frequency to be far away from the optimal resonant frequency; and when the distance between the transmitting coil and the receivingcoil is too long, adjusting the current working frequency to be close to the optimal resonant frequency, thereby expanding the application range of the distance between the transmitting end and the receiving end in the wireless charging system.