Double-flywheel battery

Abstract

The invention relates to an improved technique of a flywheel battery, in particular to a double-flywheel battery with high performance. The double-flywheel battery comprises a sealed outer enclosure arranged on an engine base, a rotating shaft, a bearing, a main motor rotor connected with the rotating shaft, a main motor stator arranged on the inner surface of the outer enclosure and correspondingto the main motor rotor, a vacuum nozzle and an electric power electron switching device. The double-flywheel battery is characterized in that two sides of the rotating shaft are provided with a flywheel component respectively, each flywheel component comprises a pair of flywheel bodies and support frames for mounting the flywheel bodies, and the support frames are fixedly connected with the rotating shaft. The double-flywheel battery not only can increase the accumulation energy of the flywheel, but also can improve the limit rotating speed of the flywheel, thereby having the advantages of large accumulation energy capacity, good effect, fast charging, low energy consumption, high efficacy, long service life and no pollution.

Description

(1) Technical field: [0001] The invention relates to an improved technology of a flywheel battery, in particular to a high-efficiency double flywheel battery. (two) background technology: [0002] At present, people use many types of batteries in production and life, such as lead-acid batteries, lithium batteries, fuel cells, superconducting energy storage batteries, etc. Among them, the most widely used energy storage batteries are undoubtedly chemical batteries, which convert electrical energy into Chemical energy storage, and then converted into electrical energy output, has the same disadvantages as other batteries: first, the energy storage density is small, and the power consumption time is short; second, the number of charge and discharge is limited, so the service life is short; third, the charging time is long, The use efficiency is low; the fourth is to cause secondary pollution to the environment, and the battery needs to be recycled after use. [0003] With the ...

AI Technical Summary

Problems solved by technology

[0002] At present, people use many types of batteries in production and life, such as lead-acid batteries, lithium batteries, fuel cells, superconducting energy storage batteries, etc. Among them, the most widely used energy storage batteries are undoubtedly chemical batteries, which convert electrical energy into Chemical energy storage, and then converted into electrical energy output, has the same disadvantages as other batteries: first, the energy storage density is small, and the power consumption time is short; second, the number of charge and discharge is limited, so the service life is short; third, the charging time is long, The use efficiency is low; the fourth is to cause secondary pollution to the environment, and the battery needs to be recycled after use

[0003] With the progress of society and the development of science and technology, people have higher and higher requirements for environmental protection and battery performance. Although the energy storage methods of fuel cells and superconducting energy storage batteries are more advanced and can meet people's requirements, fuel cells need Continuous maintenance, its application range is small, and the working environment of superconducting energy storage batteries is strictly limited, so people have gradually developed flywheel batteries that store energy mechanically

Flywheel battery is a new concept battery proposed in the 1990s in the world. It breaks through the limitations of chemical batteries and uses physical methods to realize energy storage. The existing flywheel battery is mainly composed of a flywheel body and a draggable flywheel body. The rotating motor is composed of a motor-generator and a power electronic conversion device. Its working principle is that the motor drives the flywheel to run when charging, and the flywheel stores kinetic energy (mechanical energy). When discharging, the flywheel drives the generator to run and converts kinetic energy into electrical energy. The disadvantage is that the torque acts on the axis, and the starting torque is large, which limits the speed of the flywheel, thus affecting the power and energy storage effect of the battery

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