Five-degree-of-freedom suspension supported vehicle-mounted energy storage device
An energy storage device and a technology with a degree of freedom, applied in the direction of electromechanical devices, control mechanical energy, electrical components, etc., can solve problems that are not suitable for high-integration vehicle applications, do not meet the low-cost goal, increase weight and volume, and achieve Enhance safety and reliability, meet cost-effective requirements, and stabilize axial suspension force
Active Publication Date: 2022-03-22
JIANGSU UNIV
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Problems solved by technology
[0005] In terms of cost performance: Generally, in order to meet the requirement of large system energy storage, flywheel materials are mostly made of high-toughness composite materials, but the price of such materials is uneconomical and does not meet the goal of low cost
In comparison, in order to achieve the same energy storage requirements, low-cost pure alloy steel materials can be used, but its weight and volume will double, which is not suitable for highly integrated vehicle applications
Method used
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Embodiment Construction
[0028] Such as Figure 1-4 As shown, the present invention includes a housing 1 , an auxiliary bearing 2 , a hybrid magnetic bearing 3 , a flywheel rotor 4 , a magnetic levitation switched reluctance motor 5 and a flywheel shaft 6 . Such as figure 1 As shown, an axial sensor hole 1111 is set on the cylindrical boss 111 of the upper end cover 11 of the casing, and four radial sensor holes 1112 arranged in a 90° circle are set in the circumferential direction, and the upper auxiliary bearing 2 is installed on the support frame 112 and In the slot where the shell 1 is fixed, the support frame 112 is connected with the shell by bolts. A hybrid magnetic bearing 3 , a flywheel rotor 4 , and a magnetic levitation switched reluctance motor 5 are successively installed on the flywheel rotating shaft 6 . The torsion stator 32 of the hybrid magnetic bearing is connected to the upper end cover 11 of the casing by bolts, the torsion rotor 33 is fixed to the rotating shaft, and the hybrid...
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The invention discloses a five-degree-of-freedom suspension supported vehicle-mounted energy storage device which comprises a shell 1, an auxiliary bearing 2, a hybrid magnetic bearing 3, a flywheel rotor 4, a magnetic suspension switch reluctance motor 5 and a flywheel rotating shaft 6. An axial sensor hole 1111 is formed in a cylindrical boss 111 of an upper end cover 11 of a shell 1, meanwhile, four radial sensor holes 1112 which are arranged in a 90-degree circumference mode are formed in the circumferential direction, an auxiliary bearing 2 is installed in a groove where a supporting frame 112 and the shell 1 are fixed, and the supporting frame 112 is connected with the shell through bolts. The hybrid magnetic bearing 3, the flywheel rotor 4 and the magnetic suspension switch reluctance motor 5 are sequentially sleeved on the flywheel rotating shaft 6, so that the safety problem caused by falling of the flywheel can be prevented, the safety and reliability of the system are enhanced, and stable axial suspension force can be provided.
Description
technical field [0001] The invention is a vehicle-mounted flywheel energy storage device (also called a flywheel battery) applied to an electric vehicle, in particular a vehicle-mounted energy storage device with a five-degree-of-freedom suspension support. Background technique [0002] Flywheel energy storage device is a highly mechatronic energy storage device, the main structure includes flywheel, support bearing, motor / generator, power electronic converter, vacuum chamber. Compared with other common energy storage technologies, flywheel energy storage has the advantages of high power density, high energy storage density, high efficiency, short response time, long service life, and environmental protection. It is one of the ideal power batteries for electric vehicles. However, the main challenges currently restricting the development of flywheel energy storage devices used in electric vehicles are that their space occupation rate is still large (large axial length), energ...
Claims
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IPC IPC(8): H02K7/02H02K7/09
CPCH02K7/025H02K7/09Y02E60/16
Inventor 范宜旭李凤祥袁野单琰
Owner JIANGSU UNIV