CN107294348A - Magnetic driving method, magnetic driving device and generator using same - Google Patents

Abstract

The invention discloses a magnetic driving method, a magnetic driving device and a generator using the magnetic driving device. The fixing unit includes a fixing disk and a plurality of first magnets, wherein the first magnets are disposed on the fixing disk at intervals along a center of the fixing disk. The rotating unit comprises a rotating shaft, a rotating seat and a plurality of second magnets, wherein the rotating shaft is fixed at the center of the rotating seat, a plurality of fins are arranged at intervals around the rotating seat, the fins incline to a specific angle relative to the fixed disk, the second magnets are respectively arranged on the fins, the first magnets and the second magnets are respectively provided with first magnetic pole faces and second magnetic pole faces which are opposite to each other, and the first magnetic pole faces and the second magnetic pole faces have the same polarity, and therefore, the repulsive force between the first magnets and the second magnets drives the rotating seat and the rotating shaft connected with the rotating seat to rotate. A generator using the magnetic driving device and a magnetic driving method are also provided.

Description

Magnetic drive method, magnetic drive device and generator using same

technical field

The invention relates to a magnetic drive technology; in particular, it relates to a magnetic drive method, a magnetic drive device and a generator using the device.

Background technique

In recent years, due to the increasing scarcity of global resources and the seriousness of global warming, how to effectively develop and save limited resources has become the focus of international attention.

The magnetic drive device can use non-polluting magnetic force to drive the mechanism, thereby achieving the purpose of energy saving and carbon reduction, so it is one of the development priorities of the industry today.

Generally speaking, the driving principle of the existing magnetic driving device is that the magnetic poles of the two magnets are the same to generate a repulsive force, or the magnetic poles are opposite to generate a mutual attractive force. However, most of the existing magnetic drive devices still need to rely on external energy sources (such as using a power source to generate magnetic force in the electromagnetic coil) to complete their functions, and the power generation efficiency of the generator using the existing magnetic drive device still needs to be improved.

Contents of the invention

In view of the aforementioned existing problems, the object of the present invention is to provide a magnetic drive device that can complete its function without external energy, thereby improving the power generation efficiency of a generator using the magnetic drive device.

An embodiment of the present invention provides a magnetic driving device, which includes a fixing unit and a rotating unit. The aforementioned fixing unit includes a fixing disc and a plurality of first magnets, wherein the first magnets are arranged on the fixing disc at intervals along the center of the fixing disc. The aforementioned rotating unit includes a rotating shaft, a rotating base and a plurality of second magnets, wherein the aforementioned rotating shaft is fixed at the center of the rotating base, a plurality of fins are arranged at intervals around the rotating base, and the aforementioned fins are inclined relative to the fixed disk a specific angle, and the aforementioned second magnets are respectively arranged on the fins, wherein the aforementioned first and second magnets respectively have first and second magnetic pole surfaces opposite to each other, and the first and second magnetic pole surfaces have the same polarity , whereby the repulsive force between the first and second magnets drives the rotating base and the rotating shaft connected with the rotating base to rotate.

In one embodiment, the aforementioned fins are inclined at an angle of 45 degrees relative to the fixed disk.

In one embodiment, the first magnets are disposed on the fixed disk at intervals along the center of the fixed disk according to a first angle, and the first angle is determined by the number of the first magnets.

In one embodiment, the aforementioned fins and the second magnets are formed around the rotating seat at intervals according to a second angle, and the second angle is determined by the number of the fins and the second magnets.

In one embodiment, the number of the first magnet, the second magnet and the fins is the same, and the first angle is equal to the second angle.

In one embodiment, the first magnet, the second magnet and the fins are arranged in such a way that the rotation of the rotating seat and the rotating shaft does not stop.

In one embodiment, the aforesaid fixed disc includes a first part and a second part which are separated, and the aforesaid first magnet is arranged on the first part, wherein the distance between the first part and the second part is adjustable, thereby In order to control the magnitude of the repulsive force between the first and second magnets.

In one embodiment, an adjustment element is arranged between the first part and the second part of the aforementioned fixed disk to adjust the distance between the first part and the second part.

In one embodiment, the aforementioned adjusting element is a hand turn screw.

In one embodiment, the aforementioned magnetic driving device further includes a plurality of aforementioned fixing units and rotating units connected in series.

Another embodiment of the present invention also provides a generator, including the aforementioned magnetic driving device and a power generating device connected to the rotating shaft of the magnetic driving device.

An embodiment of the present invention also provides a magnetic driving method, including: providing a magnetic driving device, including a plurality of fixed units and rotating units connected in series, the aforementioned fixing units and rotating units are arranged in pairs, wherein each A fixed unit includes a fixed disc and a plurality of first magnets, the first magnets are arranged on the fixed disc at intervals along the center of the fixed disc, and the aforementioned rotating units have a common rotating shaft, and each rotating unit It includes a rotating seat and a plurality of second magnets, the rotating shaft is fixed at the center of the rotating seat, a plurality of fins are arranged at intervals around the rotating seat, and the fins are inclined at a specific angle relative to the fixed disc, and The aforementioned second magnets are respectively arranged on the fins, wherein the first and second magnets in each pair of the fixed unit and the rotating unit respectively have first and second magnetic pole surfaces opposite to each other, and the aforementioned first and second magnetic pole surfaces have The same polarity, whereby the repulsive force between the aforementioned first and second magnets drives the aforementioned rotating base and the rotating shaft connected to the rotating base to rotate; so that a fixed unit located between the two rotating units in the aforementioned fixed unit includes a separate A first part and a second part, and the first magnet of the aforementioned fixing unit is arranged on the first part, wherein the distance between the first part and the second part is adjustable, so as to control the aforementioned first and second magnets The magnitude of the repulsive force between them, or make the above-mentioned rotating seat and the rotating shaft connected with the rotating seat stop rotating.

In one embodiment, the aforesaid magnetic force driving method further includes: making the arrangement of the first and second magnets in the aforesaid different pairs of adjacent fixed units and rotating units opposite; The distance between the first part and the second part of a fixed unit between the rotating units is such that an attractive force is generated between the first magnet of the aforementioned fixed unit and the second magnets of adjacent different pairs of rotating units, thereby causing the aforementioned The rotating base and the rotating shaft connected with the rotating base stop rotating.

The beneficial effect of the present invention is that the magnetic driving device proposed by the present invention can complete its function without external energy, so the power generation efficiency of the generator using the magnetic driving device can also be improved.

In order to make the above-mentioned objects, features, and advantages of the present invention more comprehensible, preferred embodiments are specifically cited below and described in detail with the accompanying drawings.

Description of drawings

FIG. 1 shows a schematic diagram of a magnetic drive device according to an embodiment of the present invention.

FIG. 2 shows a schematic top view of the fixing unit in FIG. 1 .

3A and 3B are top and side views of the rotating base of the rotating unit in FIG. 1 and the second magnet thereon.

FIG. 4 shows a schematic diagram of the driving mechanism of the magnetic driving device of the present invention.

FIG. 5 shows a schematic diagram of a magnetic drive device according to another embodiment of the present invention.

FIG. 6 shows a cross-sectional view of the magnetic drive device in FIG. 5 .

FIG. 7 shows a partial schematic diagram of a magnetic drive device according to another embodiment of the present invention.

FIG. 8 shows a schematic diagram of the magnetic driving mechanism and the closing mechanism of the magnetic driving device in FIG. 7 .

FIG. 9 shows a schematic diagram of a power system according to another embodiment of the present invention.

Wherein, the reference signs are explained as follows:

1 Magnetic drive

2 Magnetic drive

2’ magnetic drive

3 Magnetic drive

4 power generation device

10 fixed units

10’ fixed unit

20 rotating unit

20’ swivel unit

100 fixed discs

100A groove

100B part one

100C Part II

102 first magnet

102A First pole face

200 spindles

202 swivel seat

202A fins

203 Groove

204 second magnet

204A Second pole face

A angle

B bearing

C clamping element

D spacing

E power system

F Tangential force

G generator

I attraction

L Repulsion

F1 horizontal force component

F2 vertical force component

O1 opening

O2 opening

P lock

R power storage device

S base

T adjustment element

α first angle

β Second angle.

detailed description

Preferred embodiments of the present invention are described below. The purpose of this description is to provide a general concept of the present invention and not to limit the scope of the present invention.

In the following drawings or descriptions in the specification, the same symbols are used for similar or identical parts. In addition, in the drawings, the shape or thickness of the embodiments may be exaggerated to simplify or facilitate labeling.

Please refer to FIGS. 1 to 3B first, wherein FIG. 1 shows a schematic diagram of a magnetic drive device 1 according to an embodiment of the present invention, FIG. 2 shows a schematic diagram of a top view of the fixing unit 10 in FIG. 1 , and FIG. The top and side views of the rotating base of the rotating unit 20 in 1 and the second magnet on it. As shown in FIGS. 1 to 3B , the magnetic driving device 1 includes a fixing unit 10 and a rotating unit 20 .

In this embodiment, the aforementioned fixing unit 10 includes a fixing disk 100 and a plurality of first magnets 102 . The aforementioned fixed disk 100 is fixed on a stationary base S, and a plurality of grooves 100A may be formed on the surface of the fixed disk 100 for accommodating the aforementioned first magnet 102 . It is worth mentioning that, in this embodiment, the groove 100A and the first magnet 102 are arranged at intervals along the center of the fixed disk 100 . In some embodiments, the first magnet 102 can also be directly fixed on the surface of the fixed disk 100 .

In this embodiment, the aforementioned rotating unit 20 includes a rotating shaft 200 , a rotating base 202 and a plurality of second magnets 204 . The rotating shaft 200 is fixed at the center of the ring-shaped rotating base 202 and can rotate around its own axis (as shown by the arrow in FIG. 1 ). More specifically, the rotating shaft 200 can pass through the opening O2 located at the center of the rotating seat 202, and is fixedly clamped by a plurality of clamping elements C (such as a C-type fixture in FIG. 1 ). On the opposite side of the opening O2 of the rotating base 202 , at the same time, the rotating shaft 200 can also pass through the opening O1 located at the center of the fixed disk 100 and be supported by the bearing B surrounding the opening O1 . A plurality of fins 202A are arranged at intervals around the rotating seat 202, wherein each fin 202A is inclined at the same and specific angle A ( FIG. 3B ) relative to the fixed disk 100 of the aforementioned fixing unit 10 , for example, 45 degrees. (but the present invention is not limited thereto), and the aforementioned second magnets 204 are respectively fixed on the plurality of fins 202A. In addition, a groove 203 can be formed on each fin 202A ( FIG. 3A , FIG. 3B ), and the second magnet 204 can be fixed in the plurality of grooves 203 by, for example, sticking.

In this embodiment, the aforementioned first magnet 102 and second magnet 204 can be permanent magnets, and respectively have first and second magnetic pole surfaces 102A and 204A ( FIG. 1 ) opposite to each other, wherein the first and second magnetic pole surfaces 102A and 204A have the same polarity, for example N pole. In some embodiments, both the first and second magnetic pole surfaces 102A and 204A can also be S poles.

In addition, the first magnets 102 are arranged on the fixed disk 100 at intervals along the center of the fixed disk 100 according to a first angle α ( FIG. 2 ), and the first angle α is determined by the number of the first magnets 102 . For example, the number of the first magnets 102 in this embodiment is 7, so each first magnet 102 can be along the center of the fixed disc 100 at a first angle α of about 360/7 degrees. are arranged on the fixed disc 100 at intervals. Similarly, the aforementioned second magnets 204 (with the fins 202A) are formed at intervals around the rotating base 202 according to a second angle β ( FIG. 3A ), and the second angle β is formed by the second magnets 204 (with the fins 202A) determined by the quantity. For example, the number of second magnets 204 (and fins 202A) in this embodiment is also 7, so each second magnet 204 (and fins 202A) can also have an angle of about 360/7 degrees The second angle β is formed at intervals around the rotating seat 202 .

Next, please refer to FIG. 1 , FIG. 3A and FIG. 4 together, wherein FIG. 4 shows a schematic diagram of the driving mechanism of the aforementioned magnetic driving device 1 . Through the above structural design, when the first magnet 102 and the second magnet 204 of the magnetic drive device 1 reach an appropriate distance, the repel force (repel force) between the first and second magnets 102 and 204 can generate a rotational torque , so as to drive the rotating seat 202 and the second magnet 204 on it to rotate (as shown by the arrow in FIG. 1 ).

More specifically, as shown in FIG. 4 , each second magnet 204 can be controlled by the corresponding first magnet 102 and the horizontal component force of the repulsive force (including a horizontal component force F1 and a vertical component force F2 ) therebetween. F1 drives to move in the horizontal direction, and when each second magnet 204 is far away from the original corresponding first magnet 102, it can also be continued by the next corresponding first magnet 102 and the horizontal component force F1 of the repulsive force therebetween Driven to move in the horizontal direction (the aforementioned horizontal component force F1 is equivalent to the tangential force F in FIG. 3A ), so as to achieve the effect of making the rotating base 202 and the second magnet 204 on it continue to rotate. In addition, since the rotating seat 202 is driven, the rotating shaft 200 connected thereto can also be driven to rotate (as shown by the arrow in FIG. 1 ). Thereby, the aforementioned magnetic drive device 1 can realize the purpose of the magnetic drive mechanism without external energy source (such as power supply).

It is worth mentioning that, in the aforementioned magnetic drive device 1, the number of the first magnet 102, the second magnet 204 and the fins 202A are the same, and the first angle α is equal to the second angle β, but the present invention does not rely on this As a limitation, it is only necessary to arrange the first magnet 102 , the second magnet 204 and the fins 202A in such a way that the rotation of the rotating seat 202 and the rotating shaft 200 does not stop. For example, the number of first magnets 102 and second magnets 204 (and fins 202A) may also be greater than or less than seven, or the number of first magnets 102 and second magnets 204 (and fins 202A) may also be different. same.

Next, please refer to FIGS. 5 and 6 , wherein FIG. 5 shows a schematic diagram of a magnetic driving device 2 according to another embodiment of the present invention, and FIG. 6 shows a cross-sectional view of the magnetic driving device 2 in FIG. 5 . It should be understood that the difference between the magnetic drive device 2 of this embodiment and the magnetic drive device 1 ( FIG. 1 ) of the previous embodiment is that it also includes a plurality of fixed units 10 and rotating units 20 connected in series (for example, 4 The fixed unit 10 and the rotating unit 20, but the present invention is not limited thereto, wherein the number of the fixed unit 10 and the rotating unit 20 connected in series can be determined as required). Specifically, in this embodiment, a plurality of fixing units 10 can be locked together by using a plurality of fasteners P and fixed on opposite sides of a stationary base S, while a plurality of rotating units 20 have a common The rotating shaft 200 of the rotating unit 20 corresponds to the position of the fixing unit 10 respectively. Accordingly, the magnetic drive device 2 of this embodiment includes multiple sets of magnetic drive components (the fixed unit 10 and the rotating unit 20 ), thereby generating greater rotational torque to drive the rotating seat 202 and the rotating shaft 200 of the rotating unit 20 to rotate.

In addition, as shown in Fig. 5 and Fig. 6, the fixed disk 100 of the aforementioned fixed unit 10 also includes a separate first part 100B and a second part 100C, wherein a plurality of first magnets 102 are fixed to a plurality of recesses on the first part 100B. In the slot 100A, the distance D between the first part 100B and the second part 100C can be adjusted by an adjustment element (such as a hand turns screw) T arranged between the two, and then the fixing unit can be controlled. The magnitude of the repulsive force between the first magnet 102 of 10 and the second magnet 204 of the rotating unit 20 even controls the magnetic drive switch of the magnetic drive device 2 .

For example, when the magnetic drive device 2 is in the state shown in Fig. 5 and Fig. 6, the distance between the first magnet 102 of its fixed unit 10 and the second magnet 204 of the rotating unit 20 is relatively large, resulting in the first, The repulsive force between the second magnets 102 and 204 is relatively small, and cannot drive the rotating seat 202 and the rotating shaft 200 to rotate (that is, the magnetic drive of the magnetic drive device 2 is in an OFF state); and when the aforementioned adjustment element T is subjected to a When an external force acts and rotates around the fixed disc 100 (as shown by the arrow in FIG. 5 ), the distance D between the first part 100B and the second part 100C can be adjusted (for example, larger), so that the fixed unit 10 The distance between the first magnet 102 and the second magnet 204 of the rotating unit 20 can be reduced, and the repulsive force between the first and second magnets 102 and 204 thus becomes larger, thereby driving the rotating base 202 and the rotating shaft 200 to rotate (also That is, the magnetic driving of the magnetic driving device 2 is in an activated (ON) state).

Next, please refer to FIGS. 7 and 8, wherein FIG. 7 shows a partial schematic diagram of a magnetic drive device 2' according to another embodiment of the present invention, and FIG. 8 shows the magnetic drive mechanism and closing mechanism of the magnetic drive device 2' in FIG. 7 schematic diagram. It should be understood that the difference between the magnetic drive device 2' (FIG. 7 and FIG. 8) of this embodiment and the magnetic drive device 2 (FIG. 5) of the previous embodiment lies in that two pairs of fixed The arrangement of the first magnet 102 and the second magnet 204 in the unit 10, 10' and the rotating unit 20, 20' is opposite (relatively, in the magnetic drive device 2 of FIG. The arrangement of the first magnet 102 and the second magnet 204 in the two pairs of the fixed unit 10 and the rotating unit 20 is the same). Specifically, in this embodiment, the corresponding first and second magnetic pole surfaces 102A and 204A of the fixed unit 10 located below (closer to the base S) and the rotating unit 20 are both N poles, while the ones located above The corresponding first and second magnetic pole surfaces 102A and 204A of the fixed unit 10 ′ and the rotating unit 20 ′ (farther from the base S) are S poles.

It should be noted that, with this structural design, the magnetic driving device 2' of this embodiment can also pass between the first magnet 102 and the second magnet 204 in the multiple fixed units 10, 10' and the rotating units 20, 20'. Repulsive force L to achieve magnetic drive (the magnetic drive shown in the left part of Figure 8 is the ON state). It should be understood that, in the left part of FIG. 8 , the first and second magnets 102 and 204 located above correspond to the first and second magnets 102 in the fixed unit 10 ′ and the rotating unit 20 ′ in FIG. 7 and 204 , and the first and second magnets 102 and 204 located below correspond to the first and second magnets 102 and 204 in the fixed unit 10 and the rotating unit 20 in FIG. 7 .

In addition, when the adjustment element T (refer to FIG. 7 ) is subjected to an external force and rotates around the fixed disc 100 of the fixed unit 10 ′ located above (further away from the base S), and makes the fixed unit located above 10' (that is, the fixed unit between the two rotating units 20 and 20') and the distance between the first magnet 102 and the second magnet 204 in the rotating unit 20' becomes larger (as shown in the right part in Figure 8 Shown), the repulsive force between the first and second magnets 102 and 204 can be reduced, and the rotating seat 202 and the rotating shaft 200 cannot be driven to continue to rotate (that is, the magnetic driving of the magnetic driving device 2' is closed (OFF) state). It is worth mentioning that when the distance between the first magnet 102 and the second magnet 204 in the above fixed unit 10' and the rotating unit 20' becomes larger, the first magnet 102 and the lower (closer) The distance between the second magnets 204 of the rotating unit 20 of the base S becomes relatively smaller, and an attractive force (impel force) I can be generated, wherein the attractive force I can be greater than or equal to the one below (closer to the base) S) the repulsive force L between the first magnet 102 and the second magnet 204 in the fixed unit 10 and the rotating unit 20, thus making the rotating seat 202 and the rotating shaft 200 of the rotating unit 20 located below also stop rotating (originally pushing the rotating seat 202 and the horizontal component force F1 of the repulsive force L of the rotating shaft 200 have been offset by the attractive force I). Therefore, in the present embodiment (Fig. 7, Fig. 8), it is only necessary to adjust the central magnets (in the present embodiment, the magnets of the stationary unit 10) that are positioned at the aforementioned two pairs of fixed units 10, 10' and rotating units 20, 20'. The position of the first magnet 102) can control the ON and OFF states of the magnetic drive of the magnetic drive device 2'.

Next, please refer to FIG. 9 , which shows a schematic diagram of a power system E according to another embodiment of the present invention. As shown in Fig. 9, the power system E includes a generator G and a power storage device R, wherein the generator G includes a magnetic drive device 3 (for example, the magnetic drive device 1, 2 or 2' of the aforementioned embodiment) and is connected to A generating device 4 of the rotating shaft of the magnetic drive device 3 (as shown in Fig. 1 and Fig. 5, a rotating shaft 200) can be used to generate an AC power (AC power), and the storage device R is, for example, a battery device, which can be used to AC power is converted into DC power and stored for convenience. It is worth mentioning that the magnetic drive device of the embodiment of the present invention can complete its function without external energy sources (such as power supply), so the power generation efficiency of the generator G using the magnetic drive device can also be improved.

In some embodiments, the power storage device R in the power system E can also be omitted. In addition, since the power generating device 4 and the power storage device R (battery device) used to convert the mechanical energy provided by the rotating shaft of the magnetic drive device 3 into electrical energy are prior art in the field, no further description is given here.

Although the present invention is disclosed by the aforementioned embodiments, they are not intended to limit the present invention. Those skilled in the technical field of the present invention may make some changes and modifications without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention should be determined by the appended claims.

Claims (13)

1. A magnetic drive, comprising: A fixing unit comprising a fixed disc and a plurality of first magnets, wherein the plurality of first magnets are arranged on the fixed disc at intervals along the center of the fixed disc; and A rotating unit includes a rotating shaft, a rotating seat and a plurality of second magnets, wherein the rotating shaft is fixed at the center of the rotating seat, a plurality of fins are arranged at intervals around the rotating seat, and the plurality of fins An angle is inclined relative to the fixed disc, and the plurality of second magnets are respectively arranged on the plurality of fins, wherein the plurality of first and second magnets respectively have first and second magnetic poles opposite to each other surface, and the plurality of first and second magnetic pole surfaces have the same polarity, whereby the repulsive force between the plurality of first and second magnets drives the rotating base and the rotating shaft connected to the rotating base turn. 2. The magnetic drive device as claimed in claim 1, wherein the angle is 45 degrees. 3. The magnetic drive device as claimed in claim 1, wherein the plurality of first magnets are arranged on the fixed disk at intervals along the center of the fixed disk according to a first angle, and the first angle is determined by The number of the plurality of first magnets is determined. 4. The magnetic driving device as claimed in claim 3, wherein the plurality of fins and the plurality of second magnets are formed around the rotating seat at intervals according to a second angle, and the second angle is defined by the The number of the plurality of fins and the plurality of second magnets is determined. 5. The magnetic driving device as claimed in claim 4, wherein the number of the plurality of first magnets, the plurality of second magnets and the plurality of fins is the same, and the first angle is equal to the second angle. 6. The magnetic driving device as claimed in claim 5, wherein said plurality of first magnets, said plurality of second magnets and said plurality of fins do not stop due to rotation of said rotating seat and said rotating shaft mode configuration. 7. The magnetic drive device as claimed in claim 1, wherein the fixed disc comprises a first part and a second part which are separated, and the plurality of first magnets are arranged on the first part, wherein the first part and the second part The distance between the second parts is adjustable, so as to control the magnitude of the repulsive force between the first and second magnets. 8 . The magnetic drive device as claimed in claim 7 , wherein an adjustment element is disposed between the first portion and the second portion of the fixed disc to adjust the distance between the first portion and the second portion. 9. The magnetic driving device as claimed in claim 8, wherein the adjusting element is a thumb screw. 10. The magnetic drive device according to claim 1, further comprising a plurality of fixed units and rotating units connected in series. 11. A generator comprising: A magnetic drive device as claimed in any one of claims 1 to 10; and A power generating device is connected with the rotating shaft of the magnetic driving device. 12. A magnetic drive method comprising: A magnetic drive device is provided, comprising a plurality of fixed units and rotating units connected in series, the plurality of fixed units and the plurality of rotating units are arranged in pairs, wherein each of the plurality of fixed units includes a A fixed disc and a plurality of first magnets, the plurality of first magnets are arranged on the fixed disc at intervals along the center of the fixed disc, and the plurality of rotating units have a common rotating shaft, and each One of the plurality of rotating units includes a rotating base and a plurality of second magnets, the rotating shaft is fixed at the center of the rotating base, a plurality of fins are arranged at intervals around the rotating base, and the plurality of fins are opposite to each other. The plurality of fixed disks are inclined at a specific angle, and the plurality of second magnets are respectively arranged on the plurality of fins, wherein each pair of the fixed unit and the plurality of first magnets in the rotating unit 1. The second magnets respectively have first and second magnetic pole surfaces opposite to each other, and the plurality of first and second magnetic pole surfaces have the same polarity, whereby the plurality of first and second magnetic pole surfaces have the same polarity. The repulsive force drives the plurality of rotating seats and the rotating shaft connected with the plurality of rotating seats to rotate; and A fixed unit located between two rotating units among the plurality of fixed units includes a first part and a second part separated, and the plurality of first magnets of the fixed unit are arranged on the first part, Wherein the distance between the first part and the second part is adjustable, so as to control the magnitude of the repulsive force between the first and second magnets, or make the plurality of rotating seats and the The rotating shaft connected by a plurality of rotating seats stops rotating. 13. The magnetic driving method as claimed in claim 12, further comprising: so that the arrangement of the plurality of first and second magnets in the plurality of adjacent fixed units and the plurality of rotating units is opposite; and Adjusting the distance between the first part and the second part of the fixed unit located between the two rotating units among the plurality of fixed units, so that the plurality of first magnets of the fixed unit and the adjacent different pairs of An attractive force is generated between the plurality of second magnets of the rotating unit, thereby stopping the rotation of the plurality of rotating seats and the rotating shaft connected with the plurality of rotating seats.