CN214741832U - Magnet control device based on magnetic wind oar - Google Patents

Abstract

The utility model provides a magnet control device based on a magnetic wind oar, which comprises a logic power supply and an electric control device; the electric control device is an electric control movement device, and a movement part of the electric control movement device is fixedly connected with a moving magnet; the electric control device comprises a reciprocating device and a rotating device, and a power supply control end of the electric control device is connected with a logic power supply; the magnet control device is used for controlling a magnetic wind propeller which is provided with a rotating shaft and at least two blades, and the outer edges of the blades are fixedly connected with rotating magnets; the electric control device is arranged adjacent to the rotating contour of the rotating magnet; the magnetic wind oar can be provided with a multilayer structure; the logic power supply comprises a power supply, a switch module, a control module and a signal sensor. The utility model discloses a control is moved the magnet and is close to or keep away from the commentaries on classics magnet that the paddle linked firmly, makes the rotational speed of magnetism oar controllable.

Description

Magnet control device based on magnetic wind oar

Technical Field

The utility model relates to a wind oar design field, concretely relates to magnet controlling means based on magnetism wind oar.

Background

The wind oar is a mechanical component related to wind power utilization, and wind power generation provides mechanical energy for the rotary generator through wind-driven rotation of the wind oar; in practical application, wind power is not evenly distributed along with time, and gusts are used as main characteristics, so that the power output of a wind power generation system is unstable, the wind power generation system can only sleep when no wind exists or the wind speed is too low, and the stable power output is at the cost of rear-end energy loss when the wind speed is too high. In order to solve the technical problem of unstable wind power output, the current mainstream technical direction is to configure a power storage base for a wind power generation system.

The wind power of nature is uncontrollable, but the rotational speed of wind oar can be controlled, for example for a type of wind oar that is provided with the permanent magnet on the wind oar, magnetic interaction can be used to make the wind oar keep a certain rotational speed lower limit in the weak wind environment, and can be decelerated in the strong wind environment, thereby avoiding the electric energy fluctuation of the output of the rear-end power generation system to be too large.

The application is mainly provided aiming at the practical requirements of the wind power generation scene.

SUMMERY OF THE UTILITY MODEL

The technical purpose of the utility model, mainly be to the unstable application defect of wind oar rotational speed in the gust provide a magnet controlling means for control one kind and set up the magnetism wind oar of permanent magnet at the wind oar, through the space relative position between the control permanent magnet, utilize magnetism interact to trade and get the wind oar steady speed relatively, the structure realizes easily.

In order to achieve the technical object, the utility model provides a magnet control device based on a magnetic wind oar, which comprises a logic power supply and an electric control device; the electric control device is an electric control motion device, and a motion part of the electric control motion device is fixedly connected with a moving magnet; the electric control device comprises a reciprocating device and a rotating device, and a power supply control end of the electric control device is connected with a logic power supply; the magnet control device is used for controlling a magnetic wind propeller which is provided with a rotating shaft and at least two blades, and the outer edges of the blades are fixedly connected with rotating magnets; the electric control device is arranged adjacent to the rotating contour of the rotating magnet.

The magnetic wind paddle can be used for replacing a common wind paddle for wind power generation, a base body of the magnetic wind paddle is made of a non-magnetic solid forming material, and the purpose of the magnet control device matched with the magnetic wind paddle is not limited to conversion control of mechanical energy; the materials of the moving magnet and the rotating magnet are permanent magnets known by technicians in the field, such as magnetic steel, neodymium iron boron and the like, and the crowns are called differently to distinguish the structural parts; the design goal of the electric control device is to make the moving magnet periodically adjacent to or far away from the rotating contour position of the rotating magnet on the paddle; the proximity or separation is a relative state, when the spacing is in the effective range of magnetic interaction, considered to be proximity, this effective range is commonly referred to in the art as a gap or air gap; when the spacing is large enough, there is theoretically no longer a magnetic interaction effect, and it is considered to be far away.

In the technical scheme, the permanent magnet of the reciprocating device is fixedly connected to the reciprocating connecting rod of the reciprocating device.

In the above technical scheme, the permanent magnet of the rotating device is fixedly connected to the rotor of the rotating device.

In the above technical scheme, the electric control device and the rotating circumference of the rotating magnet on the paddle are arranged adjacently, and the electric control device and the rotating circumference of the rotating magnet on the paddle are arranged in the normal direction of the rotating plane of the magnetic wind paddle or/and the rotating shaft direction of the magnetic wind paddle. The electric control device is arranged in the direction of the rotating shaft of the magnetic wind paddle and comprises any direction at two ends of the rotating shaft and the directions at two ends of the rotating shaft.

In the technical scheme, the magnetic wind paddles are arranged in multiple layers. The multilayer is more than two layers; when the magnetic wind oar is provided with a layer, a magnetic auxiliary device can be considered to be additionally arranged on the common wind oar; when the magnetism oar sets up the multilayer, can strengthen periodic magnet interact's technological effect, be favorable to reducing the space occupation of oar.

In the technical scheme, the logic power supply comprises a power supply, a switch module, a control module and a signal sensor; the power supply is connected with the switch module and the control module; the control module is internally stored with a power-on control program, and the logic control end of the control module is connected with the switch module; the power output end of the switch module is connected with the power control end of the electric control device; the signal sensor is arranged at the adjacent part of the rotating contour of the rotating magnet, and the signal output end of the signal sensor is connected with the signal input end of the control module. The electrical signal sensing form of the signal sensor is arbitrary.

The utility model discloses required mechanical frame spare in implementing under the prerequisite of effectively realizing mechanical fastening, support, the material and the structure of chooseing for use can be arbitrary.

The role of the wind oar in the wind power system is to convert wind power into rotary mechanical energy, and uncontrollable wind power is the root cause of unstable electric energy output. The technical idea of adding permanent magnets to the wind paddles is already available, but various technical problems exist in the practical application; the utility model discloses an application magnet controlling means controls the rotational speed of this type of magnetism wind oar, in the wind power generation field, how to control electric energy output more steadily is one of the target of trade long-term research, the utility model discloses to the stability control of electric energy output, be the wind oar stability control who looks at the system front end. In addition, magnetism oar is only a mechanical component, and its application is not limited to the mechanical energy conversion, cooperates the utility model provides a magnet controlling means also can implement and be out of shape into one type electric energy and the conversion equipment of rotating mechanical energy.

The utility model has the main advantages that: the magnet control device can effectively interact with the permanent magnet arranged on the paddle, so that the torque increment of the magnetic wind paddle is converted, the torque increment is superposed with the rotating mechanical energy of the magnetic wind paddle, the rotating speed of the magnetic wind paddle is controlled to operate in a set interval, and the design purpose of stable operation is achieved.

Drawings

FIG. 1 is a schematic structural view of the magnetic wind oar;

FIG. 2 is a schematic view of another structure of the magnetic wind oar;

FIG. 3 is a schematic structural view of a magnetic wind blade having a two-layer structure;

FIG. 4 is a schematic view of the reciprocating device in a relative state of operation in the normal direction of the magnetic wind oar;

FIG. 5 is a schematic view of a relative state of operation in which the rotating means is disposed in the direction of the axis of rotation of the magnetic paddles;

FIG. 6 is a partial schematic view of another operating condition of the example of FIG. 5;

FIG. 7 is a schematic diagram of the internal structure relationship and external control of a logic power supply;

fig. 8 is a schematic view of a magnetic interaction state of a magnetic paddle approaching an electric control device in operation.

The attached drawings are as follows:

1. blade 1a, rotating shaft 2, rotating magnet 2a and magnetic pole line

3. Rotor 5, normal 6, tangent 7, magnetic force line

8. Reference normal line 9, moving magnet m, gap N/S, magnetic pole

Detailed Description

The technical solution of the present invention will be further described in detail with reference to the accompanying drawings and examples.

The magnet control device is used for controlling a magnetic wind oar, and the structure difference between the magnetic wind oar and the common wind oar is that rotating magnets are arranged on blades 1, fig. 1 is a structural example of the magnetic wind oar, and the outer edge parts of two blades 1 are provided with rotating magnets 2 with magnetic pole lines 2a arranged along the direction of a normal line 5; the arrangement position of the rotating magnet on the paddle is a design choice, and is preferably arranged at the outer edge part far away from the rotating shaft 1 a; and the magnetic pole line is a connecting line determined by the N/S two magnetic poles of the permanent magnet and an extension line thereof. Fig. 2 is another structure example of a magnetic wind oar, and the magnetic pole line of the permanent magnet is arranged along the direction of the rotation tangent line 6 of the blade.

The arrangement direction of the magnetic pole wires on the blade is a typical structural characteristic, and the magnetic pole wires can be deflected by a certain angle to match the rotating speed of the wind blade in practical design. The paddle is provided with the permanent magnet for generating magnetic interaction with the magnet control device, the permanent magnet is preferably the same in shape, preferably a product with high magnetic flux density, and is not limited in shape on the premise of not influencing installation.

The magnetic wind paddle can be arranged in a multilayer structure, fig. 3 is an example of a two-layer structure, and a rotating magnet 2 with a magnetic pole line 2a along the direction of the rotating shaft 1a is arranged at the outer edge part far away from the rotating shaft 1 a. The technical goal of the wind paddle with the multilayer structure is to meet the design requirement of compactness by matching a plurality of magnet control devices.

The magnetic wind oar can arrange a mechanical fixing device between the blades, such as an annular mechanical fixing ring, and is used for fixing a plurality of blades with large mass; the magnetism oar also can select to set up the counter weight thing, and the purpose of increasing the counter weight thing is in order to increase rotary inertia, and this rotary inertia is little to the technical meaning of ordinary oar, nevertheless right the utility model discloses a magnetism oar has the technological effect that periodic magnetic energy effect brought.

The rotary magnet 2 rotates along with the paddle 1, and the running track of the rotary magnet is a closed circumferential line; the materials of the moving magnet 9 fixedly connected with the electric control device and the rotating magnet 2 fixedly connected with the paddle 1 are permanent magnets known by technical personnel in the field, such as magnetic steel, neodymium iron boron and the like, and the specification uses different designations and different marks of the moving magnet 9 and the rotating magnet 2 for the permanent magnets at different fixedly connected parts, so as to better explain the technical scheme and make the drawings clearer.

The electric control device is arranged adjacent to the rotating contour of the rotating magnet 2 fixedly connected with the paddle 1, the expression of the periodic magnetic interaction between the moving magnet 9 and the rotating magnet 2 is implied, and the design target is as follows: when the moving magnet 9 is adjacent to the rotating magnet 2, the gap between the two is m (magnetic interaction occurs); and when the moving magnet 9 is far from the rotating magnet 2, the gap is much larger than m (theoretically, magnetic interaction can be ignored); the gap m defines no mechanical contact and implies design requirements, the gap is a magnetic energy channel for interaction between magnets, the value of the gap is related to the magnetic flux density of the permanent magnet, the value of the gap m is generally set to be 1-2mm in a small device, and is generally set to be 2-20mm in a large and medium device.

The electric control device comprises all devices capable of realizing periodic motion, such as a reciprocating device and a rotating device; the electric control device can achieve the design goal only by enabling the moving magnet 9 fixedly connected with the electric control device and the rotating magnet 2 fixedly connected with the paddle 1 to generate magnetic interaction in a set mode at set time under the control of the logic power supply.

In the specific design, the electric control device can adopt a motor which moves in a linear reciprocating manner, for example, the moving magnet 9 is fixedly connected with a moving rod of the motor which moves in a reciprocating manner, and the reciprocating period of the moving rod is controlled by a logic power supply to achieve the design goal; fig. 4 is a schematic diagram of a relative operation state of the reciprocating device in the direction of the normal line 5 of the rotation plane of the magnetic wind propeller (the magnetic pole lines 2a of the rotating magnet are arranged along the direction of the rotation tangent 6 of the blade), the moving magnet 9 fixedly connected to the reciprocating device reciprocates in the direction of the rotating shaft 1a under the control of the logic power supply (the directions indicated by arrows ↓and ↓), and is periodically located at the positions a and B; the position a is a state where the moving magnet 9 is close to the rotating magnet 2, the gap in this state is m, and the position B is a state where the moving magnet 9 is far from the rotation circumference of the rotating magnet 2.

The rotating device can also adopt a rotating motor of an outer rotor, the moving magnet 9 is fixed on the outer rotor 3, and the design target can be achieved by controlling the rotating speed of the rotating motor. Fig. 5 and 6 are schematic diagrams of an operating state in which the rotating device is arranged in the direction of the rotating shaft 1a of the magnetic wind propeller (the magnetic pole lines 2a of the rotating magnets 2 on the propeller are arranged along the direction of the rotating shaft 1a), the moving magnet 9 fixedly connected to the rotating device rotates around the shaft under the control of the logic power supply, and the moving magnet is periodically adjacent to and away from the rotating magnet 2 fixedly connected to the propeller 1, wherein fig. 5 is a schematic diagram of a state in which the moving magnet 9 is adjacent to the rotating magnet 2, and a gap in this state is m; fig. 6 is a schematic view of the state where the moving magnet 9 is away from the rotation circumference of the rotary magnet 2.

The power supply control of a logic power supply is needed to ensure that the moving magnet 9 fixedly connected with the electric control device is periodically adjacent to and far away from the rotating magnet 2 on the paddle; the logic power supply is conventionally realized by adopting a logic digital technology and an arithmetic circuit, and the submodules of the logic power supply generally comprise: the logic interface circuit, microprocessor and signal input processing circuit which are internally stored with power-on control program, peripheral circuit, etc. can make correspondent D/A conversion by means of input signal and can output sequential current according to the control of set logic, and can be internally stored for programming. The market has more integrated module products, can satisfy the operational requirement through programming generally. When the integrated module cannot meet the high-power output, the discrete switch module can be matched with the control module to meet specific requirements, and a main functional module circuit structure and a logic control relation of the logic power supply are shown in fig. 7.

The logic power supply needs to provide a position signal of the rotary magnet 2 on the blade 1, which is provided by a signal sensor; the signal sensor preferably adopts a magnetoelectric induction mode, a periodical pulsating magnetic field is provided for the external space due to the rotation of the rotating magnet 2 along with the wind oar, and the pulsating magnetic field can be converted into a position electric signal through a magnetoelectric induction coil; the signal sensor can also adopt a photoelectric device, for example, a light source is designed on a magnet control device or a wind oar, and the signal sensor can also realize the function of collecting the position signal of the rotary magnet 2 on the blade 1 by matching with a light collecting and converting device.

The magnet control device of the utility model is preferably matched with the application of the magnetic wind oar to realize the control of the rotating speed of the magnetic wind oar, when the propeller speed is insufficient in the weak wind environment or too high in the strong wind environment, the rotating magnet body 2 which is operated to the adjacent propeller blade by the brake magnet body 9 can be controlled at a proper time, and the magnetic wind oar can be accelerated or decelerated by utilizing the magnetic interaction; when the magnetic wind oar normally operates or the rotor magnet 2 is rotated according to different state positions of the rotor magnet 2 on the oar blade, the rotor magnet 9 is controlled to be far away from the motion contour of the rotor magnet 2; through the control of the magnetic interaction, the magnetic wind paddles can obtain relatively uniform speed, and the magnetic wind paddles can be used for wind power generation to avoid overlarge fluctuation of electric energy output by the power generation at the rear ends of the wind paddles.

The acceleration or deceleration obtained by the magnetic paddles depends on the nature of the magnetic interaction between the rotating magnet 2 and the moving magnet 9, the technical principle of which is known to those skilled in the art as like-pole repulsion and opposite-pole attraction: fig. 8 is a schematic view of a magnetic interaction state of a magnetic wind paddle approaching an electric control device during operation, wherein the rotating magnet 2 operates in a state approaching a reference normal line 8 (a connecting line formed by a wind paddle rotating shaft 1a and a moving magnet 9 on the electric control device), at this time, the moving magnet 9 is controlled to operate to a rotation contour line adjacent to the rotating magnet 2, the magnetic polarities of the rotating magnet 2 and the moving magnet 9 in opposite directions are opposite, so that a magnetic attraction acting force is generated, the direction 7 of the magnetic attraction acting force can be decomposed into a normal line 5 direction and a tangential line 6 direction, and the magnetic attraction force component in the tangential line 6 direction can accelerate the wind paddle. In the relative motion model, if the rotating magnet 2 and the moving magnet 9 have the same magnetic polarity, the wind paddle can be decelerated. If the distance between the rotating magnet body 2 and the moving magnet body 9 is too far away, no magnetic interaction exists, so the design of the relative running state and the clearance m of the rotating magnet body 2 and the moving magnet body 9 is very important to the design of the utility model; when the rotating magnet 2 moves to the position of the reference normal line 8, the magnetic interaction with the moving magnet 9 only has normal component force and no tangential component force, and the preferred design principle is to use more tangential component force of the magnetic interaction and do more useful work.

The following examples are merely recommended, and several technical solutions may be partially used, and other well-established techniques may be used together.

Examples 1,

A magnet control device with a magnetic paddle as a control object is designed, and comprises a logic power supply and an electric control device. The magnetic wind propeller is provided with two blades 1, the shape of each blade is similar to that of a common wind propeller, the length of each blade is 12 meters, the two blades are arranged at intervals of 180 degrees, the outer edge far away from a rotating shaft 1a is fixedly connected with 1 rotating magnet 2 with the same width as the outer edge, the length of each permanent magnet along the direction of the rotating shaft 1a is 0.3 meter, and a magnetic pole line 2a is arranged along the direction of a rotating tangent line 6.

The electric control device adopts a reciprocating device which is an electric motor making linear reciprocating motion, a reciprocating moving rod of the reciprocating device is fixedly connected with 1 box-shaped moving magnet 9, and the moving magnet 9 can make linear reciprocating motion by controlling the reciprocating motion of the moving rod; the reciprocating device is fixedly arranged at the position adjacent to the rotating circumference of the rotating magnet 2 fixedly connected with the paddle 1 along the normal direction of the magnetic wind propeller, and the reciprocating motion direction is towards the rotating shaft 1a of the magnetic wind propeller, as shown in figure 4.

The logic power supply comprises a power supply, a switch module, a control module and a signal sensor; the power supply is connected with the switch module and the control module; the logic control end of the control module is connected with the switch module; the power output end of the switch module is connected with the power control end of the electric control device; the signal sensor is arranged at the position adjacent to the rotating contour of the rotating magnet 2 of the paddle 1, and the signal output end of the signal sensor is connected with the signal input end of the control module.

The signal sensor adopts a magnetoelectric induction device and is made of a strip-shaped magnetic core and a coil surrounding the magnetic core, the magnetic core adopts a rare earth material with high magnetic permeability, and the number of turns of a coil winding is determined according to the precision of the signal sensor; the control module is stored with a processing function and a power-on control program for converting the analog current provided by the signal sensor into a digital control signal; the main circuit structure and logic control relationship of the logic power supply are shown in fig. 7.

In the embodiment, the paddle 1 is periodically opposite to the reciprocating device (coinciding with the reference normal line 8) in the rotating operation, and the magnetic pole direction of the moving magnet 9 fixedly connected with the moving rod of the reciprocating device is closely related to the set working state; when the speed of the magnetic wind oar is not enough in the weak wind environment and needs to be accelerated, the logic power supply controls the brake magnet 9 to move to the rotating magnet 2 fixedly connected with the adjacent paddle 1, and two technical schemes can be selected for the acceleration scheme of the magnetic wind oar:

1) the opposite magnetic polarities of the moving magnet 9 and the rotating magnet 2 are opposite, the logic power supply controls the moving magnet 9 to move to a position adjacent to the rotation circumference of the rotating magnet 2 in a state that the paddle 1 approaches a reference normal line 8, and the relative state is as shown in fig. 8, so that the moving magnet 9 and the rotating magnet 2 are subjected to magnetic attraction to accelerate the paddle; and when the paddle 1 approaches to a state of being overlapped with the reference normal line 8, the moving magnet 9 is controlled to be away from the rotation circumference of the rotating magnet 2.

2) The opposite magnetic polarities of the moving magnet 9 and the rotating magnet 2 are the same, the logic power supply controls the moving magnet 9 to move to a position adjacent to the rotating circumference of the rotating magnet 2 in a state that the paddle 1 just crosses the reference normal line 8, and the moving magnet 9 and the rotating magnet 2 generate magnetic repulsion to accelerate the paddle; and in the time interval when the moving magnet 9 and the rotating magnet 2 on the blade 1 complete the magnetic interaction, the logic power supply controls the moving magnet 9 to be far away from the rotating contour of the rotating magnet 2.

The two technical schemes can ensure that the wind oar keeps a certain lower limit of the rotating speed in the weak wind environment.

Similarly, the magnetic wind oar has the same technical principle that the oar speed is too high and needs to be decelerated in the strong wind environment: in the step 1), the opposite magnetic polarities of the moving magnet 9 and the rotating magnet 2 are changed to be the same, and the magnetic wind oar deceleration can be realized through the magnetic repulsion action of the moving magnet 9 and the rotating magnet 2; in the above 2), the opposite magnetic polarities of the moving magnet 9 and the rotating magnet 2 are changed to be opposite, and the magnetic paddle deceleration can be realized by the magnetic attraction effect of the moving magnet 9 and the rotating magnet 2.

The magnetic wind paddle controlled by the magnet control device is used for replacing a common wind paddle, the rotating speed of the magnetic wind paddle can be effectively controlled in a set running interval, the phenomenon that the rotating mechanical energy output by the rotating shaft 1a of the magnetic wind paddle fluctuates too much is avoided, and the magnetic wind paddle is used for a linkage rotating power generation system to realize stable output of electric energy.

Examples 2,

The technical scheme that the magnetic wind propeller provided with the two blades 1 in the embodiment 1 is changed into a double-layer structure, each layer of the magnetic wind propeller is provided with the two blades 1, and the blades 1 are provided with permanent magnets is similar to the embodiment 1.

In the magnet control device, two reciprocating devices similar to those in embodiment 1 are adopted, the technical scheme of fixedly connecting the movable magnet 9 is similar, and the two reciprocating devices are respectively arranged at the adjacent positions of the rotating contour of the rotating magnet 2 corresponding to the two layers of blades; the method comprises the steps that a logic power supply comprising a power supply, a control module and two switch modules is arranged, the technical principle of the circuit structure is similar to that of embodiment 1, and the difference is that the power supply is connected with the two switch modules, the logic control end of the control module is connected with the two switch modules, and the power supply output ends of the two switch modules are connected with the power supply control ends of the two reciprocating devices; the arrangement of the signal sensor is similar to that of embodiment 1.

The embodiment is more favorable for exerting the technical advantage of arranging the rotating magnet on the paddle and is favorable for shortening the length of the wind paddle. In the magnet control device of the present embodiment and the foregoing embodiments, if the magnetic wind paddles are used to cooperate with wind power generation, the power source may be obtained from the power generation device at the rear end of the system instead.

Examples 3,

On the basis of embodiment 1, the reciprocating device is converted into a rotating device, the rotating device is a rotating motor in the form of an outer rotor, and a moving magnet 9 is fixed on a rotor 3 of the rotating motor; the rotating device is fixedly arranged at the adjacent position of the rotating contour of the rotating magnet 2 fixedly connected with the paddle 1 along the direction of the rotating shaft 1a of the magnetic wind oar, the rotating speed of the rotating motor is controlled by a logic power supply, and the design target that the moving magnet 9 fixedly connected with the rotor is periodically adjacent to and far away from the rotating contour of the rotating magnet 2 can also be achieved; fig. 5 shows a state where the moving magnet 9 is adjacent to the rotating magnet 2, and fig. 6 shows a state where the moving magnet is distant from the rotating circumference of the rotating magnet 2.

Claims (6)

1. A magnet control device based on a magnetic wind paddle is characterized by comprising a logic power supply and an electric control device; the electric control device is an electric control motion device, and a motion part of the electric control motion device is fixedly connected with a movable magnet (9); the electric control device comprises a reciprocating device and a rotating device, and a power supply control end of the electric control device is connected with a logic power supply; the magnet control device is used for controlling a magnetic wind propeller, the magnetic wind propeller is provided with a rotating shaft (1a) and at least two blades (1), and the outer edges of the blades (1) are fixedly connected with rotating magnets (2); the electric control device is arranged adjacent to the rotation contour of the rotating magnet body (2).

2. A magnet control device as claimed in claim 1, characterized in that the moving magnet (9) is attached to a reciprocating link of the reciprocating means.

3. A magnet control device as claimed in claim 1 or 2, characterized in that the moving magnet (9) is attached to the rotor (3) of the rotating device.

4. The magnet control device according to claim 1, characterized in that the electric control device is arranged adjacent to the rotation contour of the rotary magnet (2) on the blade (1), including in the direction of the normal (5) of the rotation plane of the magnetic wind paddle or/and in the direction of the rotation axis (1a) of the magnetic wind paddle.

5. The magnet control device of claim 1, wherein the magnetic paddles are provided in multiple layers.

6. The magnet control device of claim 1, wherein the logic power supply comprises a power supply, a switch module, a control module and a signal sensor; the power supply is connected with the switch module and the control module; the control module is internally stored with a power-on control program, and the logic control end of the control module is connected with the switch module; the power output end of the switch module is connected with the power control end of the electric control device; the signal sensor is arranged at the adjacent part of the rotating contour of the rotating magnet (2), and the signal output end of the signal sensor is connected with the signal input end of the control module.

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