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energy storage flywheel

An energy storage flywheel and sleeve technology, applied in the field of energy storage flywheel, can solve the problems of large radial thickness, flywheel rotor damage, carbon fiber separation, etc., to achieve the effect of preventing separation, increasing safety performance, and improving energy storage density

Active Publication Date: 2022-05-17
HUACHI KINETIC ENERGY (BEIJING) TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

And the radial thickness is large, which will lead to the separation of carbon fiber radial layers, resulting in damage to the flywheel rotor, which not only does not improve the energy storage density of the energy storage flywheel, but also reduces the safety of the energy storage flywheel

Method used

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Embodiment Construction

[0030] Embodiments of the invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0031] The energy storage flywheel of the embodiment of the present invention will be described below with reference to the accompanying drawings.

[0032] Such as Figure 1-6 As shown, the energy storage flywheel of the embodiment of the present invention includes a casing 1 , a rotor assembly 2 and a motor assembly 3 .

[0033] The housing 1 has a vacuum chamber 11 .

[0034] The rotor assembly 2 is rotatably arranged in the vacuum chamber 11. The rotor assembly 2 includes a body 21 whose cross-sectional area gradually decreases from the inside to the outside. The body 21 is formed by winding carbon fibers 212. 21 height directions (eg figure 1 shown in the...

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Abstract

The invention discloses an energy storage flywheel. The energy storage flywheel includes a casing, a rotor assembly and a motor assembly. The casing has a vacuum chamber, and the rotor assembly is rotatably arranged in the vacuum chamber. The rotor assembly includes a body, and the cross section of the body is The area gradually decreases from the inside to the outside. The body is made of carbon fiber winding. The winding angle of the carbon fiber is at an angle to the height direction of the body. The motor assembly is located in the vacuum chamber. The motor assembly includes the motor rotor and the motor stator. The motor rotor and the rotor assembly connected, the motor rotor is installed in the motor stator, the outer peripheral surface of the motor rotor and the inner peripheral surface of the motor stator are arranged at intervals along the inner and outer directions, and the energy storage flywheel has a first state and a second state. In the first state, the motor assembly discharges with The rotor assembly is driven to rotate, and in the second state, the rotor assembly drives the motor assembly to generate electricity. The energy storage flywheel of the invention has the advantages of simple structure, high energy storage density, low cost and the like.

Description

technical field [0001] The invention relates to the field of energy storage, in particular to an energy storage flywheel. Background technique [0002] Flywheel energy storage is the storage and release of electrical energy by increasing and decreasing the rotation speed of the composite flywheel. When the electrical energy is excessive, the motor is used to increase the rotation speed of the composite flywheel, thereby storing electrical energy in the form of kinetic energy in the composite flywheel. Among them, when the electric energy is insufficient, the rotation speed of the composite flywheel is reduced to drive the generator to work, and the kinetic energy stored in the composite flywheel is converted into electric energy. [0003] In related technologies, due to the large difference in modulus elasticity between carbon fiber composite materials and metal materials. The carbon fiber in the energy storage flywheel is prone to separation from the rotor hub. Because th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K7/02H02K5/04H02K5/02H02K7/09H02N15/00
CPCH02K7/025H02K5/04H02K5/02H02K7/09H02N15/00Y02E60/16
Inventor 王志强苏森韩坤陈胜林卜庆瑞
Owner HUACHI KINETIC ENERGY (BEIJING) TECH CO LTD