A magnetic pole oscillating generator

Abstract

This invention relates to a magnetic pole oscillating generator, comprising a sway bar, an upper salient pole, a sway plate, a lower salient pole, a coil, a lower disk, an aluminum casing, a magnet, and an outer magnetic yoke. One end of the sway bar passes through the sway plate, and the upper salient pole is mounted on the lower part of the sway bar. The lower salient pole is mounted on the lower disk, with the upper and lower salient poles facing each other. A coil is sleeved around the lower salient pole. A magnet is sleeved around the coil and located on the lower disk. The outer magnetic yoke is sleeved around the coil and the upper salient pole and located on the magnet. The aluminum casing is sleeved around the magnet and the outer magnetic yoke and located below the sway plate. This invention uses wind oscillation to shift the upper and lower salient poles, changing their opposing positions and altering the area through which the magnetic flux passes between the poles. This changes the magnetic reluctance of the air gap, causing a change in the magnetic flux in the magnetic circuit.

Description

Technical Field

[0001] This invention relates to the field of pendulum wind turbines and magnetic pole swing power generation, and is mainly applied to generator structures that use natural wind energy, tidal energy, etc. to drive mechanical swing and convert it into electrical energy. Specifically, it is a magnetic pole swing generator. Background Technology

[0002] With the continuous development of the times, the demand for electricity is increasing day by day due to the widespread use of electronic products. Therefore, new generators that use natural wind, flowing water, vibration and other natural forces as power sources have broad application prospects.

[0003] The swing direction of a pendulum wind turbine is not directional, so the generator designed for it must also be adapted to this condition. Summary of the Invention

[0004] This invention aims to overcome the shortcomings of existing technologies and provide a magnetic pole oscillating generator. In its design, this invention takes into account that since the generator generates electricity through the kinetic energy of the non-directional oscillation of the wind-driven rod, and the amplitude of the oscillation is not constant, the oscillating vibration guide disk should be circular. In considering the self-stabilizing positioning of the wind-driven rod, inspired by the electromagnet self-stabilizing structure of maglev trains and maglev bearings, a structure utilizing two opposing circular salient poles was designed.

[0005] To solve the above-mentioned technical problems, the present invention is implemented as follows:

[0006] A magnetic pole oscillating generator is characterized by comprising a sway bar, an upper salient pole, a sway plate, a lower salient pole, a coil, a lower magnetic disk, an aluminum casing, a magnet, and an outer magnetic yoke. One end of the sway bar passes through the sway plate, and the upper salient pole is installed on the lower part of the sway bar. The lower salient pole is installed on the lower magnetic disk, with the upper and lower salient poles facing each other. A coil is sleeved around the lower salient pole. A magnet is sleeved around the coil and located on the lower magnetic disk. The outer magnetic yoke is sleeved around the coil and the upper salient pole and located on the magnet. The aluminum casing is sleeved around the magnet and the outer magnetic yoke and located below the sway plate. By oscillating the air, the upper and lower salient poles are offset, changing their opposing positions and altering the area through which the magnetic flux passes between the poles. This changes the magnetic reluctance of the air gap, causing a change in the magnetic flux in the magnetic circuit.

[0007] The magnetic pole oscillating generator is characterized in that: the magnet is a neodymium iron boron magnet.

[0008] The magnetic pole oscillating generator is characterized in that: the upper surface of the oscillating disk has a slope, the cross-sectional area of ​​the path through the oscillating disk and the upper and lower convex poles is equal, and the area through the upper and lower convex poles is also equal to the cross-sectional area through the outer magnetic yoke.

[0009] The beneficial effects of this invention are: This application utilizes a structure with two circular salient poles facing each other, and takes advantage of the principle that magnetic flux should take the path of least magnetic resistance to generate a self-stabilizing centripetal force, which can keep the two salient poles stably facing each other when the wind swing is not swaying; This application can not only position the wind bar, but also convert mechanical energy into electrical energy, which is relatively efficient. Attached Figure Description

[0010] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments:

[0011] Figure 1 This is a schematic diagram of the cross-sectional structure of this application.

[0012] Figure 2 This is a schematic diagram of magnetic flux change.

[0013] Figure 3 This is a schematic diagram of the change characteristic curve.

[0014] Figure 4 This is a top cross-sectional view of the entire motor.

[0015] Figure 5 This is an exploded view of the motor of the present invention. Detailed Implementation

[0016] like Figure 1 , 5 As shown: A magnetic pole oscillating generator includes a swing rod 1, an upper salient pole 2, a swing disk 3, a lower salient pole 4, a coil 5, a lower disk 6, an aluminum casing 7, a neodymium iron boron magnet 8, and an outer magnetic yoke 9. One end of the swing rod passes through the swing disk, and the upper salient pole is installed on the lower part of the swing rod. The lower salient pole is installed on the lower disk, and the upper and lower salient poles are arranged opposite each other. A coil is sleeved outside the lower salient pole. The neodymium iron boron magnet is sleeved outside the coil and located on the lower disk. The outer magnetic yoke is sleeved outside the coil and the upper salient pole and located on the neodymium iron boron magnet. The aluminum casing is sleeved outside the neodymium iron boron magnet and the outer magnetic yoke and located below the swing disk. By oscillating the air, the upper and lower salient poles are offset, changing the opposing positions of the salient poles, which changes the area through which the magnetic flux passes between the magnetic poles, thereby changing the magnetic reluctance of the air gap and causing a change in the magnetic flux in the magnetic circuit.

[0017] Structural principle:

[0018] like Figure 2 As shown: The mechanical force generated by the wind-driven swing causes the two salient poles to shift, changing their opposing positions and altering the area through which the magnetic flux passes between the poles. This changes the magnetic reluctance of the air gap, causing a change in the magnetic flux in the magnetic circuit. According to the principles of electromagnetism, when the magnetic flux (magnetic field strength) in the magnetic circuit changes in the coil surrounding the magnetic poles, an induced electromotive force will be generated: u = WS * dB / dt. Therefore, this structural design aims to maximize the change in magnetic flux.

[0019] from Figure 2 It can also be seen that when the upper salient pole moves relative to the lower magnetic pole, the relative area of ​​the magnetic poles changes. Besides the change in air gap reluctance, the magnetic flux in the air gap will become skewed, thus generating an electromagnetic restoring force. The trend is to restore the original stable relative state of the salient poles. As the salient poles shift, this restoring force changes with the decrease in the relative area of ​​the upper and lower salient poles. The restoring force T reaches its maximum when the relative area S is 3 / 4. As the relative area continues to decrease, the restoring force decreases significantly due to the increase in air gap reluctance causing a synchronous decrease in magnetic flux. This characteristic curve is detailed in [the provided text]. Figure 3 .

[0020] When the opposing surfaces of the upper and lower salient pole air gaps are not completely coincident, the air gap reluctance will reach its maximum, that is, the magnetic flux or magnetic density will be at its minimum. See details. Figure 2 (b).

[0021] Example 1:

[0022] To build a prototype experimental device, a neodymium iron boron magnetic ring was selected as the magnetomotive force source. Since the two salient poles are circular, the effect of changing the relative air gap area of ​​the magnetic poles is the same regardless of the direction in which the pendulum swings.

[0023] like Figure 4 As shown: The upper part of the pendulum is not a uniform cross-section. This is because the radius of the outer magnetic yoke is larger than that of the salient pole. In order to keep the cross-sectional area of ​​the magnetic flux passing through the pendulum approximately equal, the upper surface of the pendulum has a slope. The cross-sectional area of ​​the path of the magnetic flux through the pendulum and the upper and lower salient poles is approximately equal, and the area of ​​the magnetic flux passing through the salient pole is also approximately equal to the cross-sectional area of ​​the magnetic flux passing through the outer magnetic yoke.

[0024] When the upper and lower magnetic poles are symmetrical about their relative axes, the magnetic reluctance of the air gap is minimized, and the magnetic flux in the magnetic circuit is maximized (ideally, the magnetic flux density should reach over 1T). Increasing the amplitude of the increase or decrease in magnetic flux density during the maximum oscillation of the oscillating plate can yield a larger induced electromotive force (EMF) in the coil. The physical phenomenon observed when the oscillating plate is displaced is that the magnetic flux in the air gap will change. If an electromagnetic coil is placed around the salient pole, an induced EMF will be generated, and only a single toroidal coil is needed.

[0025] Therefore, this structural design can not only position the wind rod, but also convert mechanical energy into electrical energy, making it highly efficient.

Claims

1. A pole-wiggling electric generator characterized by: It includes a swing rod, an upper salient pole, a swing disc, a lower salient pole, a coil, a lower magnetic disc, an aluminum shell, a magnet and an outer magnetic yoke; one end of the swing rod penetrates through the swing disc, and the lower part of the swing rod is installed with the upper salient pole, the lower salient pole is installed on the lower magnetic disc, the upper salient pole and the lower salient pole are oppositely arranged, the coil is sleeved outside the lower salient pole, the magnet is sleeved outside the coil and located on the lower magnetic disc, the outer magnetic yoke is sleeved outside the coil and the upper salient pole and located on the magnet, and the aluminum shell is sleeved outside the magnet and the outer magnetic yoke and located below the swing disc; through the wind swing, the upper salient pole and the lower salient pole are offset, the facing positions of the salient poles are changed, the area through which the magnetic flux between the magnetic poles passes is changed, the magnetic resistance of the air gap is changed, and the magnetic flux in the magnetic circuit is also changed; The upper salient pole and the lower salient pole are circular salient poles. The upper surface of the swing disc has a slope, the path cross-sectional area through which the magnetic flux passes the swing disc and the upper and lower salient poles is equal, and the area through which the magnetic flux passes the upper and lower salient poles is also equal to the cross-sectional area through which the magnetic flux passes the outer magnetic yoke.

2. The pole-wiggling generator of claim 1, wherein: The magnet is a neodymium iron boron magnet.

Images