Superconducting power generation device and power generation method

Patent metadata

Field	Value
Publication number	US-12027952-B2
Application number	US-202117646376-A
Country	US
Kind code	B2
Filing date	Dec 29, 2021
Priority date	Nov 22, 2021
Publication date	Jul 2, 2024
Grant date	Jul 2, 2024

Abstract

The present disclosure provides a superconducting power generation device and a power generation method. The device includes a superconductor, a conductive coil, a permanent magnet and a cooling medium. When ambient temperature is lower than its superconducting critical temperature, the superconductor, made of the second-type superconducting material, is capable of generating a magnetic levitation force to an outer permanent magnet and levitate it. When an external force is applied to the permanent magnet, its position changes compared to the conductive coil, which affects the magnetic flux passing through the coil and induces the generation of electromotive force in the coil, thereby converting mechanical energy to electric energy. By using the device provided by the present disclosure, the conversion from the mechanical energy to the electric energy in an ultra-low temperature environment can be achieved, and thus, problems about energy sources on low-temperature celestial bodies in extrasolar systems are solved.

First claim

What is claimed is:

1. A power generation method, comprising the following steps:
providing a superconducting power generation device;
wherein the superconducting power generating device comprising:
a superconductor made of a second-type superconducting material; wherein the second-type super conducting material is YBa 2 Cu 3 O 7 , and the superconductor is manufactured by wrapping a YBa 2 Cu 3 O 7 strip with a length of 50 mm, a width of 10 mm and a thickness of 1 mm to form a cubic superconductor;
a conductive coil located above the superconductor; wherein the conductive coil is made of 0.1 mm enameled copper wire, and an inner diameter of the conductive coil is 5 mm, an outer diameter of the conductive coil is 50 mm, and the turn number of the conductive coil is 6000;
a permanent magnet located above the conductive coil; wherein the permanent magnet is an Nd—Fe—B permanent magnet with a weight of 165 g, a diameter of 50 mm, a thickens of 10 mm, and a surface magnetic intensity of 180 mT; and
a cooling medium used for cooling the superconductor until the temperature is lower than a superconducting critical temperature wherein the superconductor generates a magnetic levitation force after being cooled so as to levitate the permanent magnet; and
a container, wherein the superconductor and the conductive coil are both located in the container, the permanent magnet is located outside the container in which a cooling channel is further formed, and a cooling medium enters the container via the cooling channel and cools the superconductor,

introducing the cooling medium so that the superconductor is cooled to capture a magnetic flux and generate a magnetic levitation force to levitate the permanent magnet; and
applying an acting force to the permanent magnet to make the permanent magnet vibrate to change relative positions of the permanent magnet and a conductive coil, change the magnetic flux passing through the conductive coil and further generate an induced electromotive force by induction, so that conversion from mechanical energy to electric energy is achieved; wherein the acting force is provided by dropping a glass bead with weight of 10.4 g from a height of 20 cm.

2. The power generation method of claim 1 , wherein the cooling medium comprises any one of liquefied CF 4 , liquid nitrogen, liquid hydrogen and liquid helium.

3. The power generation method of claim 1 , wherein the container is further filled with thermal insulation material.

Assignees

• Univ Huazhong Science Tech

Inventors

• Su Bin
• Ma Zheng
• Yan Chunze
• Shi Yusheng

Classifications

• H02K9/19

  for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil · CPC title

• H02K5/20

  with channels or ducts for flow of cooling medium · CPC title

• Y02E40/60

  Superconducting electric elements or equipment; Power systems integrating superconducting elements or equipment · CPC title

• H02N15/00

  Holding or levitation devices using magnetic attraction or repulsion, not otherwise provided for (electric or magnetic devices for holding work on machine tools B23Q3/15 {; monorail vehicle propulsion or suspension B60L13/00}; sliding or levitation devices for railway systems B61B13/08; material handling devices associated with conveyors incorporating devices with electrostatic or magnetic grippers B65G47/92; separating thin or filamentary articles from piles using magnetic force B65H3/16; delivering thin or filamentary articles from magnetic holders by air blast or suction B65H29/24; bearings using magnetic or electric supporting means F16C32/04; relieving bearing loads using magnetic means F16C39/06; magnets H01F7/00; dynamo-electric clutches or brakes H02K49/00 {; electric furnaces with simultaneous levitation and heating H05B6/32}) · CPC title

• H02K35/02

  with moving magnets and stationary coil systems · CPC title