WO2017020845A1 - 永磁动力系统 - Google Patents

永磁动力系统 Download PDF

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Publication number
WO2017020845A1
WO2017020845A1 PCT/CN2016/093180 CN2016093180W WO2017020845A1 WO 2017020845 A1 WO2017020845 A1 WO 2017020845A1 CN 2016093180 W CN2016093180 W CN 2016093180W WO 2017020845 A1 WO2017020845 A1 WO 2017020845A1
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Prior art keywords
magnet
magnetic shield
magnetic
power system
disposed
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PCT/CN2016/093180
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English (en)
French (fr)
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霍科阳
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霍科阳
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Publication of WO2017020845A1 publication Critical patent/WO2017020845A1/zh

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
    • H02N11/00—Generators or motors not provided for elsewhere; Alleged perpetua mobilia obtained by electric or magnetic means

Definitions

  • the invention relates to the technical field of power equipment, in particular to a permanent magnet power system.
  • An electric motor or an internal combustion engine is a familiar power output device, which mainly converts thermal energy, electric energy, and the like into mechanical energy to power various load devices.
  • Most of the current power systems use carbonaceous fuel or electricity as the main energy source.
  • non-renewable resources such as gasoline and diesel
  • the power system using gasoline and diesel as energy sources will be eliminated.
  • the present invention provides a permanent magnet power system with simple structure, low energy consumption, high magnetic energy utilization rate, low cost, and convenient speed regulation.
  • a permanent magnet power system includes a first magnet and a second magnet fixedly disposed, a third magnet slidably disposed between the first magnet and the second magnet, a first magnetic shield, a second magnetic shield, and a magnetic shield a driving device; the third magnet and the first magnet, the third magnet and the second magnet are mutually repulsively disposed; The first magnetic shield is disposed between the third magnet and the first magnet, and the second magnetic shield is disposed between the third magnet and the second magnet; the magnetic shield driving device is configured to drive the first magnetic The shield and the second magnetic shield are moved in/out between the third magnet and the first and second magnets.
  • a first limiting member and a second limiting member are respectively disposed on two sides of the third magnet; the first limiting member is disposed between the third magnet and the first magnetic shielding member; The limiting member is disposed between the third magnet and the second magnetic shielding member.
  • the first limiting member and the second limiting member are both non-magnetic materials.
  • the first magnetic shield and the second magnetic shield comprise an intermediate non-magnetic conductive layer and two magnetically conductive layers.
  • the non-magnetic conductive layer is a copper, aluminum, bakelite or gaseous medium, and may also be other materials having non-magnetic properties.
  • the magnetic conductive layer is preferably iron, and may be other materials having magnetic permeability.
  • the magnetic permeability of the magnetic conductive layers on both sides of the non-magnetic conductive layer should be physically separated, and the size and thickness of the magnetic shielding member are adjusted correspondingly according to the characteristics of the magnet.
  • the magnetic shield driving device includes a first cylinder and a second cylinder, the first cylinder is connected to the first magnetic shield by a cylinder piston, and the second cylinder is connected to the second magnetic shield by a cylinder piston.
  • the third magnet is fixed on the slider, and the slider is disposed on the slide rail.
  • the third magnet is directly connected to the load to drive the load to reciprocate.
  • the load can be a flat screen device, a linear generator, or the like.
  • the third magnet is connected to the load through a crankshaft linkage mechanism, and the crankshaft mechanism pushes the load to perform a circular motion.
  • the first magnet, the second magnet and the third magnet are in a single group, a double group or a plurality of groups, thereby adjusting the size of the power source.
  • the system is placed in a closed vacuum environment to reduce drag and environmental impact. Reduce energy consumption.
  • the magnetic shield driving device drives the first magnetic shield and the second magnetic shield to move between the third magnet and the first and second magnets, the third magnet and the first magnet, the third magnet and the third
  • the two magnets are in a shielded isolation state, and the third magnet is adjacent to the first magnetic shield.
  • the third magnet is adjacent to the first limiting member.
  • Motion state 1 When the magnetic shield driving device drives the first magnetic shield to move out between the third magnet and the first magnet, the second magnetic shield does not move.
  • the third magnet repels the first magnet to push the third magnet to move toward the second magnet; preferably, the third magnet attracts the magnetic conductive layer of the second magnetic shield, along with the third magnet and the second magnetic shield The closer the distance is, the greater the suction force, and the third magnet quickly approaches the second magnet until the third magnet is close to the second limit member.
  • Motion state 2 When the magnetic shield driving device drives the second magnetic shield to move out between the third magnet and the second magnet, the first magnetic shield is reset.
  • the third magnet repels the second magnet and urges the third magnet to move toward the first magnet; preferably, the third magnet attracts the magnetic conductive layer of the first magnetic shield, along with the third magnet and the first magnetic shield The closer the distance is, the greater the suction force, and the third magnet quickly approaches the first magnet until the third magnet is close to the first limit member.
  • the magnetic shield driving device drives the first magnetic shield and the second magnetic shield to move in/out between the third magnet and the first and second magnets, and the motion state 1 and the motion state 2 can be repeated.
  • the invention utilizes the principle of attracting and repulsing the magnets, and the thrust and the suction force of the third magnet are superimposed on each other to perform work and reciprocate.
  • the third magnet can be directly connected to the load to drive the load to reciprocate.
  • the third magnet can also push the load through the crankshaft mechanism to make a circular motion for a wider range of applications.
  • the magnitude of the repulsion and suction of the magnet can be effectively controlled to achieve the purpose of controlling the moving speed of the third magnet.
  • Magnetic screen When the moving speed of the shielding member is fast, the third magnet receives a large repulsive force, and the third magnet moves at a high speed; when the magnetic shielding member moves out at a slow speed, the third magnet moves at a slow speed.
  • the third magnet When the magnetic shield is removed from the area (such as all removed), the third magnet receives a large repulsive force, and the third magnet moves at a high speed; the magnetic shield removes a small area (such as moving half and the other half for shielding), The three magnets receive a small repulsive force and the third magnet moves slowly.
  • the invention has simple structure and reasonable design, and drives the first magnetic shield and the second magnetic shield to move in/out between the third magnet and the first and second magnets through the magnetic shield driving device, and controls the third magnet to The first magnet and the second magnet reciprocate.
  • the invention utilizes the magnet attracting repulsive principle to obtain the mechanical energy of the third magnet with large reciprocating motion through the small mechanical energy of the magnetic shield, the energy consumption is small, the magnetic energy utilization rate is high, and when the magnet is demagnetized or the magnetic property is weakened to a certain extent At the same time, it is also possible to re-magnetically re-use the magnet, which is low in cost and suitable for popularization and application.
  • the speed regulation of the invention is convenient. By controlling the speed at which the magnetic shield member drives the magnetic shield to move out and the area to be removed, the repulsion and suction force of the magnet can be effectively controlled to achieve the purpose of controlling the moving speed of the third magnet.
  • FIG. 1 is a schematic structural view showing an initial (stationary) state of a permanent magnet power system according to the present invention
  • FIG. 2 is a schematic structural view of a motion state of a permanent magnet power system according to the present invention
  • FIG. 3 is a schematic structural view showing the end of the motion state of a permanent magnet power system according to the present invention.
  • FIG. 4 is a schematic structural view of a second state of motion of a permanent magnet power system according to the present invention.
  • FIG. 5 is a schematic structural view of a magnetic shield of a permanent magnet power system according to the present invention.
  • Figure 6 is a schematic structural view of a permanent magnet power system of the present invention.
  • Figure 7 is a schematic illustration of the application of the invention in an engine.
  • a permanent magnet power system includes a first magnet 1 and a second magnet 2 fixedly disposed, a third magnet 3 slidably disposed between the first magnet 1 and the second magnet 2, and a first magnet.
  • the shield 4, the second magnetic shield 5 and the magnetic shield drive.
  • the third magnet 3 and the first magnet 1, the third magnet 3, and the second magnet 2 are repulsively disposed.
  • the first magnetic shield 4 is disposed between the third magnet 3 and the first magnet 1
  • the second magnetic shield 5 is disposed between the third magnet 3 and the second magnet 1.
  • the magnetic shield driving device is configured to drive the first magnetic shield 4 and the second magnetic shield 5 to move in/out between the third magnet 3 and the first and second magnets 1, 2.
  • the first limiting member 6 and the second limiting member 7 are respectively disposed on two sides of the third magnet 3.
  • the first limiting member 6 is disposed between the third magnet 3 and the first magnetic shield 4, and the second limiting member 7 is disposed between the third magnet 3 and the second magnetic shield 5.
  • the first limiting member 6 and the second limiting member 7 are both non-magnetic materials.
  • the first magnetic shield 4 and the second magnetic shield 5 include an intermediate non-magnetic conductive layer 11 and two side magnetic conductive layers 12, 13.
  • the non-magnetic conductive layer 11 is preferably copper, aluminum, bakelite or a gas medium, and may be other materials having non-magnetic properties.
  • the magnetic permeability layers 12 and 13 are preferably iron, and may be other materials having magnetic permeability. The magnetic permeability of the magnetic conductive layer 12 and the magnetic conductive layer 13 are physically separated, and the size and thickness of the magnetic shield are adjusted correspondingly according to the characteristics of the magnet.
  • the magnetic shield driving device includes a first cylinder 8 and a second cylinder 9, the first cylinder 8 is connected to the first magnetic shield 4 through the cylinder piston, and the second cylinder 9 is connected through the cylinder piston.
  • Two magnetic shields 5 5.
  • the third magnet 3 is fixed on the slider, and the slider is disposed on the slide rail, so that the third magnet 3 slides back and forth between the first magnet 1 and the second magnet 2 to reduce the resistance. .
  • the third magnet 3 is directly connected to the load to drive the load to reciprocate.
  • the load can be a flat screen device, a linear generator, or the like.
  • the third magnet 3 is connected to the load through the crankshaft link mechanism 10, and the crankshaft mechanism 10 pushes the load to perform a circular motion, which can be used for the engine.
  • the first magnet 1, the second magnet 2, and the third magnet 3 may be a single group, a double group, or a plurality of groups, thereby adjusting the size of the power source.
  • the permanent magnet power system of the present invention is placed in a closed vacuum environment.
  • the first cylinder 8 and the second cylinder 9 respectively drive the first magnetic shield 4 and the second magnetic shield 5 into the third magnet 3 and the first and second magnets 1, 2 Meanwhile, the third magnet 3 and the first magnet 1, the third magnet 3 and the second magnet 2 are in a shield isolation state, and the third magnet 3 is in close proximity to the first stopper 6.
  • Motion state 1 As shown in FIG. 2, when the first cylinder 8 drives the first magnetic shield 4 to move out between the third magnet 3 and the first magnet 1, the second magnetic shield 5 does not move.
  • the third magnet 3 repels the first magnet 1 and the repulsive force urges the third magnet 3 to move in the direction of the second magnet 2.
  • the third magnet 3 is attracted to the left magnetic conductive layer of the second magnetic shield 5, and the closer the third magnet 3 is to the second magnetic shield 5, the greater the suction force, and the third magnet 3 is quickly moved to the second
  • the magnet 2 is close until the third magnet 3 is close to the second stopper 7, as shown in FIG.
  • Motion state 2 As shown in FIG. 4, when the second cylinder 9 drives the second magnetic shield 5 to move out between the third magnet 3 and the second magnet 2, the first magnetic shield 4 is reset.
  • the third magnet 3 and the second magnet 2 repel each other, and the repulsive force urges the third magnet 3 to move in the direction of the first magnet 1.
  • the third magnet 3 is attracted to the right magnetic conductive layer of the first magnetic shield 4, and the closer the third magnet 3 is to the first magnetic shield 4, the greater the suction force is.
  • the three magnets 3 quickly approach the first magnet 1 until the third magnet 3 is close to the first stopper 6.
  • the first cylinder 8 and the second cylinder 9 drive the first magnetic shield 4 and the second magnetic shield 5 to move in/out between the third magnet 3 and the first and second magnets 1, 2, and the above-mentioned motion state can be repeated.
  • the invention utilizes the magnet attracting repulsive principle, and forms a thrust and a suction force on the third magnet 3 to superimpose the whole work to make it reciprocate.
  • the third magnet 3 can be directly connected to the load to drive the load to reciprocate.
  • the third magnet 3 can also be moved by the crankshaft mechanism 10 to perform a circular motion for a wider range of applications, such as in an engine, see Fig. 7.
  • the magnitude of the repulsion and suction of the magnet can be effectively controlled to achieve the purpose of controlling the moving speed of the third magnet 3.
  • the third magnet receives a large repulsive force, and the third magnet moves at a high speed; when the magnetic shielding member moves out at a slow speed, the third magnet moves at a slow speed.
  • the third magnet When the magnetic shield is removed from the area (such as all removed), the third magnet receives a large repulsive force, and the third magnet moves at a high speed; the magnetic shield removes a small area (such as moving half and the other half for shielding), The three magnets receive a small repulsive force and the third magnet moves slowly. In addition, by moving the magnetic shields 4, 5 out of an appropriate area, the third magnet can be decelerated or even stopped.
  • the invention has simple structure and reasonable design, and drives the first magnetic shield and the second magnetic shield to move in/out between the third magnet and the first and second magnets through the magnetic shield driving device, and controls the third magnet to The first magnet and the second magnet reciprocate.
  • the invention utilizes the magnet attracting repulsive principle to obtain the mechanical energy of the third magnet with large reciprocating motion through the small mechanical energy of the magnetic shield, the energy consumption is small, the magnetic energy utilization rate is high, and when the magnet is demagnetized or the magnetic property is weakened to a certain extent At the same time, it is also possible to re-magnetically re-use the magnet, which is low in cost and suitable for pushing Wide application.
  • the speed regulation of the invention is convenient. By controlling the speed at which the magnetic shield member drives the magnetic shield to move out and the area to be removed, the repulsion and suction force of the magnet can be effectively controlled to achieve the purpose of controlling the moving speed of the third magnet.

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Abstract

一种永磁动力系统，包括固定设置的第一磁铁（1）与第二磁铁（2）、滑动设置于第一磁铁（1）与第二磁铁（2）之间的第三磁铁（3）、第一磁屏蔽件（4）、第二磁屏蔽件（5）和磁屏蔽件驱动装置；第三磁铁（3）与第一磁铁（1）、第三磁铁（3）与第二磁铁（2）均为相斥设置；第一磁屏蔽件（4）设置在第三磁铁（3）与第一磁铁（1）之间，第二磁屏蔽件（5）设置在第三磁铁（3）与第二磁铁（2）之间；磁屏蔽件驱动装置用于驱动第一磁屏蔽件（4）与第二磁屏蔽件（5）在第三磁铁（3）与第一、二磁铁（1,2）之间移入/移出。该永磁动力系统利用磁铁相吸相斥原理，对第三磁铁（3）形成推力和吸力相互叠加全程做功，使之往复运动。该永磁动力系统结构简单、设计合理、能耗小、磁能利用率高、便于调速、磁铁可重复充磁利用、成本低，适于推广应用。

Description

永磁动力系统 技术领域
本发明涉及动力设备技术领域，具体地说是一种永磁动力系统。
背景技术
电动机或内燃机是人们熟悉的动力输出设备，其主要是把热能、电能等变为机械能，为各种负载设备提供动力。目前的动力系统大都以碳质燃料或电作为主要能源，随着汽油、柴油等不可再生资源的日益紧张，利用汽油、柴油等作为能源的动力系统必将淘汰。
为解决能源短缺问题，市场上出现了各式各样利用磁力作为动力源的动力系统。这些动力系统大多是利用电能在电机定子表面或转子表面形成旋转磁场，旋转磁场推动或拉动转子旋转并对外做功。这些动力系统存在以下不足：(1)结构复杂、能源消耗大、磁能利用率低，导致成本过高，无法推广应用；(2)调速困难。
因此，开发一种结构简单、能耗低、磁能利用率高、成本低、调速方便的永磁动力系统势在必行。
发明内容
针对上述存在的问题，本发明提供了一种结构简单、能耗低、磁能利用率高、成本低、便于调速的永磁动力系统。
本发明为实现上述目的，采取以下技术方案予以实现：
一种永磁动力系统，包括固定设置的第一磁铁与第二磁铁、滑动设置于第一磁铁与第二磁铁之间的第三磁铁、第一磁屏蔽件、第二磁屏蔽件和磁屏蔽件驱动装置；所述第三磁铁与第一磁铁、第三磁铁与第二磁铁均为相斥设置；所 述第一磁屏蔽件设置在第三磁铁与第一磁铁之间，所述第二磁屏蔽件设置在第三磁铁与第二磁铁之间；所述磁屏蔽件驱动装置用于驱动第一磁屏蔽件与第二磁屏蔽件在第三磁铁与第一、二磁铁之间移入/移出。
优选地，所述第三磁铁两侧分别设有第一限位件与第二限位件；所述第一限位件设置在第三磁铁与第一磁屏蔽件之间；所述第二限位件设置在第三磁铁与第二磁屏蔽件之间。第一限位件和第二限位件均为非导磁材料。
优选地，所述第一磁屏蔽件与第二磁屏蔽件包括中间非导磁层和两侧导磁层。
优选地，所述非导磁层为铜、铝、电木或气体介质，还可以是其他具备非导磁性能的材料。所述导磁层优选为铁，还可以是其他具备导磁性能的材料。
非导磁层两侧导磁层的导磁性能要物理分开，磁屏蔽件的大小尺寸和厚度根据磁铁特性做相应的调整。
优选地，所述磁屏蔽件驱动装置包括第一气缸与第二气缸，所述第一气缸通过气缸活塞连接第一磁屏蔽件，所述第二气缸通过气缸活塞连接第二磁屏蔽件。
优选地，所述第三磁铁固定在滑块上，所述滑块设置在滑轨上。
优选地，所述第三磁铁直接连接负载，带动负载做往复运动。负载可以是平面筛网设备、直线发电机等。
优选地，所述第三磁铁通过曲轴连杆机构连接负载，通过曲轴杆机构推动负载做圆周运动。
优选地，所述第一磁铁、第二磁铁和第三磁铁为单组、双组或多组，从而调整动力源的大小。
优选地，所述系统置于密闭的真空环境中，可以减少阻力和环境的影响， 降低能耗。
本发明的工作原理如下：
起始(静止)状态：磁屏蔽件驱动装置驱动第一磁屏蔽件与第二磁屏蔽件移入第三磁铁与第一、二磁铁之间，第三磁铁与第一磁铁、第三磁铁与第二磁铁之间均处于屏蔽隔离状态，第三磁铁靠近第一磁屏蔽件，优选地，第三磁铁贴近第一限位件。
运动状态一：当磁屏蔽件驱动装置驱动第一磁屏蔽件移出第三磁铁与第一磁铁之间，第二磁屏蔽件不动。第三磁铁与第一磁铁相斥，推动第三磁铁向第二磁铁方向移动；优选地，第三磁铁与第二磁屏蔽件的导磁层相吸，随着第三磁铁与第二磁屏蔽件距离越近吸力越大，第三磁铁迅速往第二磁铁靠近，直至第三磁铁贴近第二限位件。
运动状态二：当磁屏蔽件驱动装置驱动第二磁屏蔽件移出第三磁铁与第二磁铁之间，第一磁屏蔽件复位。第三磁铁与第二磁铁相斥，推动第三磁铁向第一磁铁方向移动；优选地，第三磁铁与第一磁屏蔽件的导磁层相吸，随着第三磁铁与第一磁屏蔽件距离越近吸力越大，第三磁铁迅速往第一磁铁靠近，直至第三磁铁贴近第一限位件。
磁屏蔽件驱动装置驱动第一磁屏蔽件与第二磁屏蔽件在第三磁铁与第一、二磁铁之间移入/移出，可重复上述运动状态一和运动状态二。本发明利用磁铁相吸相斥原理，对第三磁铁形成推力和吸力相互叠加全程做功，使之往复运动。
第三磁铁可以直接连接负载，带动负载做往复运动。第三磁铁还可以通过曲轴杆机构推动负载做圆周运动，达到更广泛的用途。
通过控制磁屏蔽件驱动装置驱动磁屏蔽件移出的速度和移出的面积，可以有效控制磁铁斥力和吸力的大小，达到控制第三磁铁的移动速度的目的。磁屏 蔽件移出的速度快，则第三磁铁受到的瞬间斥力大，第三磁铁移动速度快；磁屏蔽件移出的速度慢，则第三磁铁移动速度慢。磁屏蔽件移出的面积大(如全部移出)，则第三磁铁受到的斥力大，第三磁铁移动速度快；磁屏蔽件移出的面积小(如移动一半，另一半用于屏蔽)，则第三磁铁受到的斥力小，第三磁铁移动速度慢。
与现有技术相比，本发明的有益效果如下：
(1)本发明结构简单、设计合理，通过磁屏蔽件驱动装置驱动第一磁屏蔽件与第二磁屏蔽件在第三磁铁与第一、二磁铁之间移入/移出，控制第三磁铁在第一磁铁与第二磁铁之间往复运动。
(2)本发明利用磁铁相吸相斥原理，通过磁屏蔽件较小的机械能，得到第三磁铁较大往复运动机械能，能源消耗小、磁能利用率高，且当磁铁消磁或磁性减弱到一定程度时，还可以重新注磁，实现磁铁重复利用，成本低，适于推广应用。
(3)本发明调速方便，通过控制磁屏蔽件驱动装置驱动磁屏蔽件移出的速度和移出的面积，可以有效控制磁铁斥力和吸力的大小，达到控制第三磁铁的移动速度的目的。
附图说明
图1是本发明一种永磁动力系统的起始(静止)状态的结构示意图；
图2是本发明一种永磁动力系统的运动状态一的结构示意图；
图3是本发明一种永磁动力系统的运动状态一结束的结构示意图；
图4是本发明一种永磁动力系统的运动状态二的结构示意图；
图5是本发明一种永磁动力系统磁屏蔽件的结构示意图；
图6是本发明一种永磁动力系统的结构示意图；
图7是本发明在发动机中的应用示意图。
具体实施方式
以下结合具体实施例来对本发明作进一步的说明。
参见图1～6：一种永磁动力系统，包括固定设置的第一磁铁1与第二磁铁2、滑动设置于第一磁铁1与第二磁铁2之间的第三磁铁3、第一磁屏蔽件4、第二磁屏蔽件5和磁屏蔽件驱动装置。第三磁铁3与第一磁铁1、第三磁铁3与第二磁铁2之间均为相斥设置。第一磁屏蔽件4设置在第三磁铁3与第一磁铁1之间，第二磁屏蔽件5设置在第三磁铁3与第二磁铁1之间。磁屏蔽件驱动装置用于驱动第一磁屏蔽件4与第二磁屏蔽件5在第三磁铁3与第一、二磁铁1、2之间移入/移出。
第三磁铁3两侧分别设有第一限位件6与第二限位件7。第一限位件6设置在第三磁铁3与第一磁屏蔽件4之间，第二限位件7设置在第三磁铁3与第二磁屏蔽件5之间。第一限位件6和第二限位件7均为非导磁材料。
第一磁屏蔽件4与第二磁屏蔽件5包括中间非导磁层11和两侧导磁层12、13。其中，非导磁层11优选为铜、铝、电木或气体介质，还可以是其他具备非导磁性能的材料。导磁层12、13优选为铁，还可以是其他具备导磁性能的材料。导磁层12和导磁层13的导磁性能要物理分开，磁屏蔽件的大小尺寸和厚度根据磁铁特性做相应的调整。
作为本实施例的优选方案之一：磁屏蔽件驱动装置包括第一气缸8与第二气缸9，第一气缸8通过气缸活塞连接第一磁屏蔽件4，第二气缸9通过气缸活塞连接第二磁屏蔽件5。
作为本实施例的优选方案之一：第三磁铁3固定在滑块上，滑块设置在滑轨上，便于第三磁铁3在第一磁铁1和第二磁铁2之间来回滑动，减少阻力。
第三磁铁3直接连接负载，带动负载做往复运动。负载可以是平面筛网设备、直线发电机等。
如图6所示，第三磁铁3通过曲轴连杆机构10连接负载，通过曲轴杆机构10推动负载做圆周运动，可以用于发动机。
实际使用中，第一磁铁1、第二磁铁2和第三磁铁3可以为单组、双组或多组，从而调整动力源的大小。
为了减少阻力和环境的影响，降低能耗，本发明的永磁动力系统置于密闭的真空环境中。
本发明的工作原理如下：
起始(静止)状态：如图1，第一气缸8与第二气缸9分别驱动第一磁屏蔽件4与第二磁屏蔽件5移入第三磁铁3与第一、二磁铁1、2之间，第三磁铁3与第一磁铁1、第三磁铁3与第二磁铁2之间均处于屏蔽隔离状态，第三磁铁3贴近第一限位件6。
运动状态一：如图2，当第一气缸8驱动第一磁屏蔽件4移出第三磁铁3与第一磁铁1之间，第二磁屏蔽件5不动。第三磁铁3与第一磁铁1相斥，相斥力推动第三磁铁3向第二磁铁2方向移动。另外，第三磁铁3与第二磁屏蔽件5的左侧导磁层相吸，随着第三磁铁3与第二磁屏蔽件5距离越近吸力越大，第三磁铁3迅速往第二磁铁2靠近，直至第三磁铁3贴近第二限位件7，如图3所示。
运动状态二：如图4，当第二气缸9驱动第二磁屏蔽件5移出第三磁铁3与第二磁铁2之间，第一磁屏蔽件4复位。第三磁铁3与第二磁铁2相斥，相斥力推动第三磁铁3向第一磁铁1方向移动。另外，第三磁铁3与第一磁屏蔽件4的右侧导磁层相吸，随着第三磁铁3与第一磁屏蔽件4距离越近吸力越大，第 三磁铁3迅速往第一磁铁1靠近，直至第三磁铁3贴近第一限位件6。
第一气缸8与第二气缸9驱动第一磁屏蔽件4与第二磁屏蔽件5在第三磁铁3与第一、二磁铁1、2之间移入/移出，可重复上述运动状态一和运动状态二。本发明利用磁铁相吸相斥原理，对第三磁铁3形成推力和吸力相互叠加全程做功，使之往复运动。
第三磁铁3可以直接连接负载，带动负载做往复运动。
如图6所示，第三磁铁3还可以通过曲轴杆机构10推动负载做圆周运动，达到更广泛的用途，如应用于发动机中，见图7。
通过控制第一气缸8与第二气缸9驱动磁屏蔽件4、5移出的速度和移出的面积，可以有效控制磁铁斥力和吸力的大小，达到控制第三磁铁3的移动速度的目的。磁屏蔽件移出的速度快，则第三磁铁受到的瞬间斥力大，第三磁铁移动速度快；磁屏蔽件移出的速度慢，则第三磁铁移动速度慢。磁屏蔽件移出的面积大(如全部移出)，则第三磁铁受到的斥力大，第三磁铁移动速度快；磁屏蔽件移出的面积小(如移动一半，另一半用于屏蔽)，则第三磁铁受到的斥力小，第三磁铁移动速度慢。另外，对磁屏蔽件4、5移出适当的面积，可以使第三磁铁减速甚至停止运动。
与现有技术相比，本发明的有益效果如下：
(1)本发明结构简单、设计合理，通过磁屏蔽件驱动装置驱动第一磁屏蔽件与第二磁屏蔽件在第三磁铁与第一、二磁铁之间移入/移出，控制第三磁铁在第一磁铁与第二磁铁之间往复运动。
(2)本发明利用磁铁相吸相斥原理，通过磁屏蔽件较小的机械能，得到第三磁铁较大往复运动机械能，能源消耗小、磁能利用率高，且当磁铁消磁或磁性减弱到一定程度时，还可以重新注磁，实现磁铁重复利用，成本低，适于推 广应用。
(3)本发明调速方便，通过控制磁屏蔽件驱动装置驱动磁屏蔽件移出的速度和移出的面积，可以有效控制磁铁斥力和吸力的大小，达到控制第三磁铁的移动速度的目的。
以上对本发明实施例所提供的技术方案进行了详细介绍，本文中应用了具体个例对本发明实施例的原理以及实施方式进行了阐述，以上实施例的说明只适用于帮助理解本发明实施例的原理；同时，对于本领域的一般技术人员，依据本发明实施例，在具体实施方式以及应用范围上均会有改变之处，综上所述，本说明书内容不应理解为对本发明的限制。

Claims (10)

  1. 一种永磁动力系统，其特征在于，包括固定设置的第一磁铁与第二磁铁、滑动设置于第一磁铁与第二磁铁之间的第三磁铁、第一磁屏蔽件、第二磁屏蔽件和磁屏蔽件驱动装置；所述第三磁铁与第一磁铁、第三磁铁与第二磁铁均为相斥设置；所述第一磁屏蔽件设置在第三磁铁与第一磁铁之间，所述第二磁屏蔽件设置在第三磁铁与第二磁铁之间；所述磁屏蔽件驱动装置用于驱动第一磁屏蔽件与第二磁屏蔽件在第三磁铁与第一、二磁铁之间移入/移出。
  2. 根据权利要求1所述的一种永磁动力系统，其特征在于，所述第三磁铁两侧分别设有第一限位件与第二限位件；所述第一限位件设置在第三磁铁与第一磁屏蔽件之间；所述第二限位件设置在第三磁铁与第二磁屏蔽件之间。
  3. 根据权利要求1所述的一种永磁动力系统，其特征在于，所述第一磁屏蔽件与第二磁屏蔽件包括中间非导磁层和两侧导磁层。
  4. 根据权利要求1所述的一种永磁动力系统，其特征在于，所述非导磁层为铜、铝、电木或气体介质；所述导磁层为铁。
  5. 根据权利要求1所述的一种永磁动力系统，其特征在于，所述磁屏蔽件驱动装置包括第一气缸与第二气缸，所述第一气缸通过气缸活塞连接第一磁屏蔽件，所述第二气缸通过气缸活塞连接第二磁屏蔽件。
  6. 根据权利要求1所述的一种永磁动力系统，其特征在于，所述第三磁铁固定在滑块上，所述滑块设置在滑轨上。
  7. 根据权利要求1所述的一种永磁动力系统，其特征在于，所述第三磁铁直接连接负载。
  8. 根据权利要求1所述的一种永磁动力系统，其特征在于，所述第三磁铁通过曲轴连杆机构连接负载。
  9. 根据权利要求1所述的一种永磁动力系统，其特征在于，所述第一磁铁、 第二磁铁和第三磁铁为单组、双组或多组。
  10. 根据权利要求1所述的一种永磁动力系统，其特征在于，所述系统置于密闭的真空环境中。
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