Magnetic power delivery system

Abstract

The utility model discloses a kind of magnetic power conveying systems, magnetic power conveying system includes stator module and rotor module, stator module includes excitation part, excitation part includes the propulsion coil being set to bottom and the levitation coil being set to side portion;Rotor module includes rotor body and the permanent magnet array being set on rotor body, and the drive cavity and the accommodating cavity are formed by the interval of rotor body, permanent magnet array is located in drive cavity and is oppositely arranged with propulsion coil and levitation coil, and the side of accommodating cavity away from drive cavity is provided with cavity mouth. By setting propulsion coil and levitation coil in excitation part, levitation coil is used to drive the up-down movement of rotor module, propulsion coil is used to drive the advance of rotor module, by combining the up-down movement and advance movement of rotor module in space, without external mechanism, the pick-and-place of workpiece can be realized.

Description

Technical Field

[0001] This utility model relates to the field of transportation equipment technology, and in particular to a magnetic power conveying system. Background Technology

[0002] With the development of society, logistics conveyor lines are widely used in various industries. Magnetic levitation conveyor lines usually include a mover and a stator. The mover is used to carry the workpiece to transport the workpiece or move the workpiece to different workstations for processing.

[0003] In related technologies, during the loading and unloading of workpieces, after the mover is transported to the designated position, an external mechanism is needed to clamp the workpiece to place it on or remove it from the mover. The clamping process of the external mechanism will take a lot of time and reduce the efficiency of workpiece transfer. Utility Model Content

[0004] This application provides a magnetic power conveying system that controls the spatial movement of a moving module to enable the moving module to pick up and place workpieces, thereby improving the workpiece transfer efficiency.

[0005] This application provides a magnetic power conveying system, which includes a stator module and a mover module. The stator module includes an excitation unit, which includes a propulsion coil disposed at the bottom and a suspension coil disposed on the side. The mover module includes a mover body and a permanent magnet array disposed on the mover body. The mover body is separated into a driving cavity and a receiving cavity. The permanent magnet array is located in the driving cavity and is disposed opposite to the propulsion coil and the suspension coil. The receiving cavity has an opening on the side away from the driving cavity.

[0006] In some embodiments, the stator module includes a guide groove disposed in the excitation section; the mover module includes a roller disposed in the mover body and located in the drive cavity, and the guide groove is used to limit the engagement with the roller.

[0007] In some embodiments, the stator module further includes a connecting portion connected to the excitation section. The excitation section includes a connecting surface and a placement surface that are adjacent to each other. The connecting portion is disposed on the connecting surface, and the levitation coil and the propulsion coil are disposed on the placement surface.

[0008] In some embodiments, a guide groove is disposed on the connecting surface.

[0009] In some embodiments, both the propulsion coil and the suspension coil are formed by arranging multiple sub-coils, and the stator module also includes multiple power amplifiers, each of which is electrically connected to a portion of the sub-coils to independently control the on / off state of the sub-coils.

[0010] In some embodiments, the permanent magnet array includes a driving permanent magnet array and a suspending permanent magnet array. The driving permanent magnet array is arranged along the conveying direction and is positioned opposite to the propulsion coil, while the suspending permanent magnet array is arranged along the conveying direction and is positioned opposite to the propulsion coil.

[0011] In some embodiments, the width of the drive coil is not less than 1.2 times the width of the driving permanent magnet array along the width direction; or, the width of the driving permanent magnet array is not less than 1.2 times the width of the drive coil along the width direction.

[0012] In some embodiments, multiple suspended permanent magnet arrays are spaced apart along the height direction, and the width of the magnetic field range formed by the multiple suspended permanent magnet arrays is not less than 1.2 times the width of the magnetic field range formed by the suspended coil.

[0013] In some embodiments, the width of each levitated permanent magnet array along the height direction is not less than 0.25 times the width of the levitated coil.

[0014] In some embodiments, the mover body includes a first profile, a second profile, and a third profile that are sequentially adjacent to each other, a levitation permanent magnet array is disposed on the first profile, and a driving permanent magnet array is disposed on the second profile; wherein the first profile and the second profile form a driving cavity, the second profile and the third profile form a receiving cavity, and the opening of the receiving cavity is opened in the third profile.

[0015] Based on the embodiments of this application, by setting a propulsion coil and a suspension coil in the excitation section, the suspension coil is used to drive the moving module to move up and down, and the propulsion coil is used to drive the moving module to move forward. By combining the up-and-down movement and forward movement of the moving module in space, the picking and placing of workpieces can be achieved without external mechanisms. The moving module can pick and place workpieces through spatial movement, avoiding the need for external actuators, thereby improving the efficiency of workpiece picking and placing, reducing the cost of setting up external actuators, and improving the overall conveying efficiency. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of a magnetic power conveying system provided in some embodiments of this application; Figure 2 This is a schematic diagram of the structure of a stator module provided in some embodiments of this application; Figure 3This is a schematic diagram of the structure of the moving module provided in some embodiments of this application.

[0018] Explanation of icon numbers: 1. Magnetic power conveying system; 2. Stator module; 21. Excitation unit; 211. Propulsion coil; 212. Suspension coil; 213. Connecting surface; 214. Placement surface; 22. Guide groove; 23. Connecting part; 3. Mover module; 31. Mover body; 311. Drive cavity; 312. Receiving cavity; 313. First profile; 314. Second profile; 315. Third profile; 32. Permanent magnet array; 321. Drive permanent magnet array; 322. Suspension permanent magnet array; 33. Roller; 4. Workpiece; X, conveying direction; Y, width direction; Z, height direction.

[0019] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0020] To make the objectives, technical solutions and advantages of this utility model clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings.

[0021] Where the following description relates to the accompanying drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this invention. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this invention as detailed in the appended claims.

[0022] In the description of this utility model, it should be understood that the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Those skilled in the art can understand the specific meaning of these terms in this utility model based on the specific circumstances. Furthermore, in the description of this utility model, unless otherwise stated, "multiple" refers to two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. The character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0024] In related technologies, when the position of the workpiece on the mover shifts, an external mechanism is required to make secondary adjustments to achieve stable processing of the workpiece. However, the secondary adjustments by the external mechanism will increase the response time and programming difficulty, affecting processing and conveying efficiency.

[0025] To solve the above problem, please refer to Figures 1 to 3 This application provides a magnetic power conveying system 1, which includes a stator module 2 and a mover module 3. The stator module 2 includes an excitation part 21, which includes a propulsion coil 211 disposed at the bottom and a suspension coil 212 disposed at the side. The mover module 3 includes a mover body 31 and a permanent magnet array 32 disposed on the mover body 31. The mover body 31 is separated to form a driving cavity 311 and a receiving cavity 312. The permanent magnet array 32 is located in the driving cavity 311 and is disposed opposite to the propulsion coil 211 and the suspension coil 212. The receiving cavity 312 has an opening on the side away from the driving cavity 311.

[0026] In this embodiment, coils are provided at the bottom and side of the excitation section 21. The propulsion coil 211 at the bottom interacts with the permanent magnet array 32 to provide power for the forward movement of the mover module 3 along the conveying direction X, and can also provide auxiliary power for the up-and-down floating of the mover module 3. The suspension coil 212 provided on the side interacts with the permanent magnet array 32 to realize the up-and-down floating of the mover module 3, and can provide auxiliary power for the forward movement of the mover module 3.

[0027] Furthermore, the mover body 31 is provided with a drive cavity 311 and a receiving cavity 312, and the permanent magnet array 32 is located within the drive cavity 311. That is, in this embodiment of the application, by setting the propulsion coil 211, the levitation coil 212, and the permanent magnet array 32 within the drive cavity 311, stable transport and vertical floating of the mover module 3 can be achieved within the drive cavity 311. During the transport process, the interacting drive sources of the mover module 3 are always in a relatively closed environment, which can reduce the influence of external environmental factors on the drive sources and keep the drive sources in a relatively clean environment. The receiving cavity 312 is used to receive the workpiece 4. In this embodiment, the workpiece 4 is placed in the receiving cavity 312. During the process of the moving module 3 carrying the workpiece 4, when the unloaded moving module 3 runs to the designated station in front of the workpiece 4, the suspension coil 212 is energized to make the moving module 3 sink, so that the moving module 3 moves downward, so that the orthogonal projection of the workpiece 4 is located in the receiving cavity 312 along the conveying direction X. Then the propulsion coil 211 is energized to drive the moving module 3 to move forward. At this time, the workpiece 4 is in the receiving cavity 312. Then the suspension coil 212 is energized to make the moving module 3 rise, so that the moving module 3 moves upward. The moving body 31 abuts against the workpiece 4 to support the workpiece 4, thereby stably placing the workpiece 4 in the receiving cavity 312. Then the moving module 3 realizes the conveying of the workpiece 4. Furthermore, when the moving module 3 places the workpiece 4, the moving module 3 is directly above the workpiece 4 placement station. Then, the suspension coil 212 is energized to cause the moving module 3 to sink, that is, the moving module 3 descends, so as to stably place the workpiece 4 in the designated position. Then, the suspension coil 212 is further energized to cause the moving module 3 to descend, so as to release the support of the moving body 31 on the workpiece 4, until the moving body 31 separates from the workpiece 4. Then, the propulsion coil 211 is energized to drive the moving module 3 to move forward until the workpiece 4 is outside the receiving cavity 312. When the station is outside the receiving cavity 312, the suspension coil 212 is energized to cause the moving module 3 to rise, so as to achieve stable conveying of the moving module 3.

[0028] It is understandable that the rising and falling process of the moving module 3 can be achieved together with the forward movement of the moving module 3, so as to further improve the picking and placing efficiency of the workpiece 4.

[0029] Furthermore, along the conveying direction X, the permanent magnet array 32 on the mover body 31 is symmetrically arranged on both sides of the excitation part 21 so that the mover module 3 is subjected to consistent forces on both sides during movement, thereby improving the conveying stability of the mover module 3; and the symmetrical arrangement makes the mover module 3 more stable during rising and falling.

[0030] In this embodiment, a propulsion coil 211 and a suspension coil 212 are provided in the excitation section 21. The suspension coil 212 is used to drive the moving module 3 to move up and down, and the propulsion coil 211 is used to drive the moving module 3 to move forward. By combining the up-and-down movement and forward movement of the moving module 3 in space, the picking and placing of the workpiece 4 can be achieved without external mechanisms. The moving module 3 can pick up and place the workpiece 4 by moving in space, avoiding the need for external actuators, thereby improving the picking and placing efficiency of the workpiece 4, reducing the cost of setting up external actuators, and improving the overall conveying efficiency.

[0031] It is understood that in this embodiment, the propulsion coil 211 is disposed at the bottom of the excitation section 21 to provide the main power for the movement of the mover; after the propulsion coil 211 is energized, it generates an attractive magnetic force with the permanent magnet array 32, and the magnitude of this attractive force can be used to assist in the up-and-down floating of the mover module 3. The suspension coil 212 is disposed on both sides of the excitation section 21. By changing the magnitude and position of the magnetic field of the suspension coil 212, the up-and-down floating of the mover module 3 can be achieved, and during the movement of the mover module 3, the suspension coil 212 can provide auxiliary power for the forward movement of the mover module 3.

[0032] Furthermore, when there are differences in the pick-up and place-down positions of workpiece 4, the translation of the moving module 3 in the width direction Y can also be achieved by changing the magnetic field positions of the levitation coil 212 and the propulsion coil 211. During the process of the moving module 3 picking up and placing workpiece 4, the pick-up and place-down positions of workpiece 4 can be changed by changing the movement direction of the moving module 3 in the width direction Y, thereby improving the conveying versatility of the magnetic power conveying system 1.

[0033] In some embodiments, please refer to Figures 1 to 3 The stator module 2 includes a guide groove 22, which is disposed in the excitation section 21; the mover module 3 includes a roller 33, which is disposed in the mover body 31 and located in the drive cavity 311, and the roller 33 is used to limit the engagement with the guide groove 22.

[0034] In this embodiment, a roller 33 is provided, with its extension direction aligned with the moving part's conveying direction X. The stator module 2 is provided with a guide groove 22 that rolls along the groove wall of the roller 33. The cooperation between the guide groove 22 and the roller 33 limits the conveying direction X of the moving part module 3, preventing it from tipping over or deviating from its conveying direction X due to uneven force on its left and right sides. It is understood that in this embodiment, the roller 33 is placed within the drive cavity 311 to make reasonable use of the cavity space, improving the space utilization rate of the drive cavity 311 and achieving miniaturization of the magnetic power conveying system 1.

[0035] In some embodiments, the guide groove 22 is used for rolling connection with the bottom of the roller 33, and the depth of the roller 33 is less than the diameter of the guide groove 22. Firstly, the guide groove 22 can roll to the bottom of the roller 33, providing support for the moving module 3, thereby reducing the levitation force requirements of the propulsion coil 211 and the suspension coil 212 on the moving module 3. When the moving module 3 carries the workpiece 4, the guide groove 22 directly contacts the bottom of the roller 33, providing support for the moving module 3, thereby increasing the load-bearing capacity of the moving module 3. Secondly, the guide groove 22 can roll to the bottom of the roller 33, providing support for the moving module 3, providing support against lateral tilting of the moving module 3, preventing excessive tilting of the moving module 3, and improving the stability of the moving module 3's transport. Thirdly, when the moving module 3 moves along the height direction Z, the guide groove 22 can cooperate with the roller 33 for limiting, that is, the levitation force pushes the moving module 3 to cooperate with the bottom of the groove of the roller 33, so as to realize the stable conveying of the moving module 3 in the roller 33.

[0036] In other embodiments, the guide groove 22 is used for rolling connection with the groove wall of the roller 33, and the width of the roller 33 is greater than the diameter of the guide groove 22. That is, the moving module 3 can move left and right, and the groove wall of the roller 33 and the guide groove 22 are rolled together to limit the maximum stroke of the moving module 3 in the left and right directions. It is understood that when the moving module 3 is at the maximum stroke of the left and right direction, the forces on the left and right sides of the moving module 3 may be different due to the different spacing between the permanent magnet array 32 and the levitation coil 212 on the left and right sides of the moving module 3. In this embodiment, by setting the width of the roller 33 to be greater than the diameter of the guide groove 22, the moving module 3 still receives a better guiding effect at the maximum stroke position of the left and right direction, so as to reduce the side tilting or tilting of the moving module 3 caused by the different forces on the left and right sides, or to reduce the adverse effects of the X-direction deviation of the moving module 3 caused by the different forces on the left and right sides.

[0037] Reference Figures 1 to 2 The stator module 2 also includes a connecting part 23 connected to the excitation part 21. The excitation part 21 includes a connecting surface 213 and a placement surface 214 that are adjacent to each other. The connecting part 23 is disposed on the connecting surface 213, and the levitation coil 212 and the propulsion coil 211 are disposed on the placement surface 214.

[0038] The connecting part 23 is used to fix the excitation part 21. By fixing the connecting part 23 to the frame, the stator module 2 is stably fixed, improving the conveying stability of the magnetic power conveying system 1. In this embodiment, the connecting surface 213 is adjacent to the placement surface 214 to achieve miniaturization of the stator module 2. The suspension coil 212 and the propulsion coil 211 can be set on different placement surfaces 214 to drive the mover module 3 independently.

[0039] Furthermore, the guide groove 22 is disposed on the connecting surface 213 to improve the utilization rate of the connecting surface 213 and realize the miniaturization of the magnetic power conveying system 1.

[0040] In some embodiments, the propulsion coil 211 and the suspension coil 212 are both formed by a plurality of sub-coils, and the stator module 2 also includes a plurality of power amplifiers, each of which is electrically connected to a portion of the sub-coils to independently control the power on and off of the sub-coils.

[0041] Understandably, the multiple sub-coils within the propulsion coil 211 are electrically connected to different power amplifiers, so that during the forward movement of the moving module 3 along the conveying direction X, the sub-coils at different positions are sequentially energized to provide a stable driving force for the moving module 3, and to reduce power consumption. Similarly, the multiple sub-coils within the suspension coil 212 are electrically connected to different power amplifiers, so that along the height direction Z, the sub-coils at different positions of the suspension coil 212 can be independently energized to achieve the vertical movement of the moving module 3. In some embodiments, along the width direction Y, the multiple sub-coils within the propulsion coil 211 are electrically connected to different power amplifiers to achieve the movement of the moving module 3 in the width direction Y.

[0042] Furthermore, in this embodiment, the movement of the moving module 3 is achieved by energizing the sub-coil. The moving module 3 is a passive device. When the moving module 3 fails, the failure of the moving module 3 does not affect the normal transport of the stator module 2, which is suitable for transport in semiconductor factories.

[0043] Furthermore, the permanent magnet array 32 includes a driving permanent magnet array 321 and a levitation permanent magnet array 322. The driving permanent magnet array 321 is arranged along the conveying direction X and is positioned opposite to the propulsion coil 211. The levitation permanent magnet array 322 is arranged along the conveying direction X and is positioned opposite to the propulsion coil 211.

[0044] Since the main functions of the propulsion coil 211 and the levitation coil 212 differ, in this embodiment, the permanent magnet array 32 is divided into a driving permanent magnet array 321 and a levitation permanent magnet array 322. The driving permanent magnet array 321 is used to couple with the propulsion coil 211 to provide a more stable driving force for the mover module 3. For example, the driving permanent magnet array 321 can have a higher magnetic field strength and magnetic field width to improve the driving force and levitation force on the mover module 3. The levitation permanent magnet array 322 is used to couple with the levitation coil 212 to provide a more stable lift for the mover module 3. For example, the levitation permanent magnet array 322 has a narrower magnetic field width and a higher magnetic field strength so that the mover module 3 can be more accurately coupled with the levitation permanent magnet array 322 and positioned at a specific height during the lifting and lowering process.

[0045] Furthermore, along the width direction Y, the width of the drive coil 211 is not less than 1.2 times the width of the drive permanent magnet array 321, or along the width direction Y, the width of the drive permanent magnet array 321 is not less than 1.2 times the width of the drive coil 211.

[0046] That is, when the propulsion coil 211 is wider than the driving permanent magnet array 321, the propulsion coil 211 can generate a larger magnetic field, improving the transport stability of the mover module 3. When the driving permanent magnet array 321 is wider than the propulsion coil 211, the mover module 3 can maintain better coupling between the driving permanent magnet array 321 and the propulsion coil 211 when moving in the width direction Y, improving the stability of the mover module 3 moving in the width direction Y.

[0047] In some embodiments, a plurality of levitated permanent magnet arrays 322 are spaced apart, and the width of the magnetic field range formed by the plurality of levitated permanent magnet arrays 322 is not less than 1.2 times the width of the magnetic field range formed by the levitated coil 212.

[0048] When the moving module 3 floats up and down under the drive of the levitation coil 212, on the one hand, this embodiment of the application sets up multiple levitation permanent magnet arrays 322 at intervals, so that the moving module 3 can achieve the best coupling relationship with a certain levitation permanent magnet array 322 when it moves up and down, thereby providing a high levitation force for the moving module 3 to maintain a certain height, improving the positioning accuracy and lifting stability of the moving module 3 during the lifting process. On the other hand, the width of the magnetic field range formed by the multiple levitation permanent magnet arrays 322 is not less than 1.2 times the width of the magnetic field range formed by the levitation coil 212, so that the levitation permanent magnet arrays 322 can always maintain a good coupling relationship with the levitation coil 212 during the lifting process, improving the lifting stability of the moving module 3 and providing a stable lift force for the moving module 3 during the lifting process.

[0049] Furthermore, along the height direction Z, the width of each levitation permanent magnet array 322 is not less than 0.25 times the width of the levitation coil 212. This ensures that each levitation permanent magnet array 322 has a higher magnetic field strength, i.e., a wider coupling area, thereby improving the positioning accuracy of the mover module 3 levitation in the height direction Z.

[0050] Please refer to Figure 1 and Figure 3 In some embodiments, the mover body 31 includes a first profile 313, a second profile 314 and a third profile 315 that are sequentially adjacent to each other. A levitation permanent magnet array 322 is disposed on the first profile 313 and a driving permanent magnet array 321 is disposed on the second profile 314. The first profile 313 and the second profile 314 form a driving cavity 311, and the second profile 314 and the third profile 315 form a receiving cavity 312. The opening of the receiving cavity 312 is opened on the third profile 315.

[0051] A suspended permanent magnet array 322 is disposed on the first profile 313 to change the height direction Z of the mover module 3; a driving permanent magnet array 321 is disposed on the second profile 314 to move the mover module 3 along the conveying direction X. The first profile 313 and the second profile 314 together form a driving cavity 311 to improve the airtightness of the driving cavity 311, reduce the probability of external particles entering the driving cavity 311, and thus improve the cleanliness of the conveying environment. The second profile 314 and the third profile 315 together form a receiving cavity 312, the opening of which is located on the third profile 315 to achieve stable support for the workpiece 4.

[0052] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this utility model. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0053] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A magnetic power conveying system, characterized in that, The magnetic power transmission system includes a stator module and a mover module. The stator module includes an excitation unit, which includes a propulsion coil disposed at the bottom and a suspension coil disposed on the side. The mover module includes a mover body and a permanent magnet array disposed on the mover body. The mover body is separated into a driving cavity and a receiving cavity. The permanent magnet array is located in the driving cavity and is disposed opposite to the propulsion coil and the suspension coil. The receiving cavity has an opening on the side away from the driving cavity.

2. The magnetic power conveying system as described in claim 1, characterized in that, The stator module includes a guide groove disposed in the excitation section; the mover module includes a roller disposed in the mover body and located in the drive cavity, and the guide groove is used to limit the movement of the roller.

3. The magnetic power conveying system as described in claim 2, characterized in that, The stator module further includes a connecting part connected to the excitation part. The excitation part includes a connecting surface and a placement surface that are adjacent to each other. The connecting part is disposed on the connecting surface, and the levitation coil and the propulsion coil are disposed on the placement surface.

4. The magnetic power conveying system as described in claim 3, characterized in that, The guide groove is disposed on the connecting surface.

5. The magnetic power conveying system as described in claim 1, characterized in that, Both the propulsion coil and the suspension coil are formed by arranging multiple sub-coils. The stator module also includes multiple power amplifiers, each of which is electrically connected to a portion of the sub-coils to independently control the power supply to the sub-coils.

6. The magnetic power conveying system as described in claim 5, characterized in that, The permanent magnet array includes a driving permanent magnet array and a suspending permanent magnet array. The driving permanent magnet array is arranged along the conveying direction and is opposite to the propulsion coil. The suspending permanent magnet array is arranged along the conveying direction and is opposite to the propulsion coil.

7. The magnetic power conveying system as described in claim 6, characterized in that, Along the width direction, the width of the propulsion coil is not less than 1.2 times the width of the driving permanent magnet array; or, along the width direction, the width of the driving permanent magnet array is not less than 1.2 times the width of the propulsion coil.

8. The magnetic power conveying system as described in claim 6, characterized in that, Along the height direction, multiple suspended permanent magnet arrays are spaced apart, and the width of the magnetic field range formed by the multiple suspended permanent magnet arrays is not less than 1.2 times the width of the magnetic field range formed by the suspended coil.

9. The magnetic power conveying system as described in claim 8, characterized in that, Along the height direction, the width of each of the levitated permanent magnet arrays is not less than 0.25 times the width of the levitated coil.

10. The magnetic power conveying system as described in claim 6, characterized in that, The moving body includes a first profile, a second profile, and a third profile that are sequentially adjacent to each other. The levitation permanent magnet array is disposed on the first profile, and the driving permanent magnet array is disposed on the second profile. The first profile and the second profile form the driving cavity, and the second profile and the third profile form the receiving cavity. The opening of the receiving cavity is opened on the third profile.

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