Magnetic steel group, rotor module and conveying line

Abstract

The utility model discloses a magnetic steel group, a rotor module and a conveyor line, the magnetic steel group comprises a permanent magnet array, the permanent magnet array comprises a plurality of permanent magnets arranged in sequence along a first preset direction, the length of each permanent magnet extends along a second preset direction, and the second preset direction is perpendicular to the first preset direction. The plurality of permanent magnets are arranged in a Halbach array, or the polarity arrangement period of the plurality of permanent magnets along the first preset direction is an NHSH period or an NHS period or an NS period, N represents the north pole, S represents the south pole, and H represents the Halbach array; the permanent magnets are provided with first end faces and second end faces which are oppositely arranged in the second preset direction, the magnetic field of the first end faces is larger than that of the second end faces, and the first end faces of at least part of adjacent permanent magnets are arranged in a stepped mode in the first preset direction. According to the technical scheme, the possibility that the magnetic steel group is collided during turning can be effectively reduced, so that the service life is ensured.

Description

Technical Field

[0001] The present application relates to the technical field of magnetic drive, and particularly relates to a magnetic steel group, a rotor module, and a wire body. Background Art

[0002] In a magnetic drive conveying system powered by magnetic force, an arc-shaped stator module is usually arranged at the bending part of the conveying line, and the rotor realizes commutation through the arc-shaped stator module.

[0003] In the related art, when the rotor passes through a bend through the arc-shaped stator module, when the length dimension of the magnetic steel group of the rotor is too large, it is easy to generate movement interference with the stator coil of the arc-shaped stator module, resulting in damage. Summary of the Utility Model

[0004] The embodiments of the present application provide a magnetic steel group, which can effectively reduce the possibility of the magnetic steel group being collided when passing through a bend, so as to ensure the service life.

[0005] In a first aspect, the embodiments of the present application provide a magnetic steel group, which includes a permanent magnet array. The permanent magnet array includes a plurality of permanent magnets arranged in sequence along a first preset direction. The length of each permanent magnet extends along a second preset direction, and the second preset direction is perpendicular to the first preset direction. And the plurality of permanent magnets are arranged in a Halbach array, or the polarity arrangement period of the plurality of permanent magnets along the first preset direction is an NHSH period or an NHS period or an NS period, where N represents the north pole, S represents the south pole, and H represents the Halbach array;

[0006] The permanent magnet has a first end face and a second end face which are oppositely arranged in the second preset direction. The magnetic field of the first end face is greater than that of the second end face, and at least part of the first end faces of the adjacent permanent magnets form a stepped arrangement along the first preset direction.

[0007] In some of the embodiments, in the first preset direction, with the central axis of the permanent magnet located in the center as the symmetry axis, the plurality of permanent magnets are symmetrically arranged with respect to the symmetry axis;

[0008] The second end faces of the plurality of permanent magnets are coplanar. In the second preset direction, at least part of the length values of the permanent magnets close to the symmetry axis are greater than the length values of the permanent magnets far from the symmetry axis.

[0009] In some of the embodiments, the permanent magnet array includes a plurality of magnetic blocks spliced in sequence along the first preset direction, and each magnetic block includes at least two permanent magnets;

[0010] Wherein, the lengths of the permanent magnets in each magnetic block in the second preset direction are the same, or the lengths of the permanent magnets in each magnetic block in the second preset direction are different.

[0011] In some of these embodiments, each of the magnetic blocks includes three permanent magnets. In the first preset direction, the polarities of the three permanent magnets of the nth magnetic block are arranged in the order of NHS, and the polarities of the three permanent magnets of the (n + 1)th magnetic block are arranged in the order of HXH, where N is a positive odd number, X is N or S, N represents the north pole, S represents the south pole, and H represents the Halbach array.

[0012] In some of these embodiments, the magnetic blocks located at both ends in the first preset direction are secondary magnetic blocks. The secondary magnetic blocks include at least two permanent magnets, and the polarities of the outermost permanent magnets are arranged as H, where H represents the Halbach array.

[0013] In some of these embodiments, in the first preset direction, the plurality of permanent magnets include secondary magnets located at opposite ends. The permanent magnets located in the middle have a first magnetic moment T1, and the secondary magnets have a second magnetic moment T2. The first magnetic moment T1 is greater than the second magnetic moment T2. The first magnetic moment T1 is the length of the permanent magnet along the second preset direction, and the second magnetic moment T2 is the length of the secondary magnet along the second preset direction.

[0014] In some of these embodiments, the coil of the arc-shaped stator module includes a first end and a second end that are oppositely arranged in the second preset direction. The second end is closer to the permanent magnet than the first end.

[0015] The maximum distance between at least part of the permanent magnet and the first end is less than half of the distance between the first end and the second end.

[0016] In a second aspect, the present application provides a mover module, including a mover body and the magnetic steel group as described in the first aspect. A through groove is provided on the mover body. The slot opening of the through groove allows the coil plate of the stator module to enter and exit. The magnetic steel group is arranged on the groove wall of the through groove, and the first end face of the magnetic steel group faces the slot opening of the through groove.

[0017] In the embodiments of the present application, the through groove includes a first groove wall and a second groove wall that are oppositely arranged. The permanent magnet array includes a first permanent magnet array and a second permanent magnet array. The first permanent magnet array is arranged on the first groove wall, and the second permanent magnet array is arranged on the second groove wall.

[0018] The first end faces of at least some of the adjacent permanent magnets of the first permanent magnet array form a stepped arrangement, and the first end faces of the plurality of permanent magnets of the second permanent magnet array are coplanar.

[0019] In an embodiment of the present application, in the second preset direction, the second end faces of the permanent magnets of the first permanent magnet array are coplanar with the second end faces of the permanent magnets of the second permanent magnet array, and the maximum distance between the first end face and the second end face of the permanent magnets of the first permanent magnet array is less than the distance between the first end face and the second end face of the permanent magnets of the second permanent magnet array.

[0020] In an embodiment of the present application, the mover module further includes at least one sliding member, the sliding member is connected to the outer surface of the mover body, and the sliding member is used for sliding connection with the guide rail of the arc-shaped stator module.

[0021] In a third aspect, the present application provides a conveyor line, including the mover module as described in the second aspect; an arc-shaped stator module; and a base, the arc-shaped stator module is installed on the base, the mover module can move relative to the base, and the mover module can move relative to the arc-shaped stator module on the base.

[0022] In the magnet steel group, mover module and conveyor line of the present application, by arranging the first end faces of the permanent magnets of the permanent magnet array in a stepped manner along the first preset direction, the spatial margin during turning is effectively increased. During the conveying process on a complex path, especially when passing through an arc section, the risk of physical interference between the permanent magnets and the arc-shaped stator module can be effectively reduced, ensuring that the mover module can stably and smoothly pass through the bend even when carrying a long permanent magnet array, significantly improving the reliability and operating efficiency to ensure the service life.

[0023] In addition, the multiple permanent magnets of the permanent magnet array also adopt the Halbach array or a specific NHSH cycle, NHS cycle polarity arrangement mode, significantly enhancing the uniformity and directivity of the magnetic field distribution to form a first end face with a larger magnetic field. Thus, this layout ensures that the most concentrated and effective part of the magnetic force lines can be directly coupled with the arc-shaped stator module, thereby maximizing the transfer of magnetic energy and converting it into a stronger and more efficient driving force. This design not only reduces the unnecessary dissipation of magnetic field energy but also significantly improves the utilization efficiency of the permanent magnet magnetic field, having significant advantages for reducing the overall energy consumption and improving the system energy efficiency. In summary, through its unique stepped arrangement and optimized magnetic field layout, the magnet steel group of the present invention not only solves the stability problem of the mover module of the conveyor line during operation on a complex path but also realizes the efficient utilization of magnetic field resources, providing important support for improving the performance and optimizing the cost of the conveyor line. Description of the Drawings

[0024] To more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on the structures shown in these drawings.

[0025] Figure 1 It is a schematic structural diagram of an embodiment of the magnet steel group of the present application;

[0026] Figure 2 It is a schematic structural diagram of an embodiment of the mover module of the present application;

[0027] Figure 3 It is a schematic structural diagram of another embodiment of the mover module of the present application;

[0028] Figure 4 It is a schematic side view structure diagram of another embodiment of the mover module of the present application.

[0029] Explanation of the reference numerals in the drawings:

[0030] 1000, mover module; 100, magnet steel group; 10, permanent magnet array; 10A, first permanent magnet array; 10B, second permanent magnet array; 11, magnetic block; 111, permanent magnet; 111a, secondary magnet; 1111, first end face; 1112, second end face; 11a, secondary magnetic block; 20, carrier; 200, mover body; 201, through groove; 201A, first groove wall; 201B, second groove wall; 2011, notch; 300, sliding member.

[0031] The realization of the purpose of the present application, functional features and advantages will be further described with reference to the embodiments and the drawings. Specific embodiments

[0032] To make the purpose, technical solutions and advantages of the present application clearer, the following will further describe the embodiments of the present application in detail with reference to the drawings.

[0033] When the following description involves the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. On the contrary, they are only examples of devices and methods that are consistent with some aspects of the present application as detailed in the appended claims.

[0034] In the description of the present application, it should be understood that the terms "first", "second", etc. are only used for descriptive purposes and cannot be construed as indicating or implying relative importance. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances. In addition, in the description of the present application, unless otherwise specified, "a plurality of" means two or more. "And / or" describes the association relationship of associated objects and indicates that three relationships may exist. For example, A and / or B may represent three situations: A exists alone, A and B exist simultaneously, and B exists alone. The character " / " generally indicates that the associated objects before and after are in an "or" relationship.

[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which this application belongs. The terms used in the description of this specification are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0036] In a magnetic drive conveying system powered by magnetic force, an arc-shaped stator module is usually provided at the turning point of the conveying system, and the mover realizes commutation through the arc-shaped stator module.

[0037] In the related art, when the magnetic steel group of the mover passes through the bend of the arc-shaped stator module, the magnetic steel group of the mover is likely to have kinematic interference with the stator coil of the arc-shaped stator module, resulting in a collision and damage.

[0038] To solve the above problems, please refer to Figure 1, a first aspect of the present application proposes a magnet group 100. In the embodiments of the present application, the magnet group 100 includes a permanent magnet array 10. The permanent magnet array 10 includes a plurality of permanent magnets 111, and the plurality of permanent magnets 111 are arranged along a first preset direction. The length of each permanent magnet 111 extends along a second preset direction, and the second preset direction is perpendicular to the first preset direction. It can be understood that the first direction can be along the conveying direction, and each permanent magnet 111 can be arranged in a rectangular block shape. It is easy to understand that the more the number of permanent magnets 111, the stronger the magnetism of the permanent magnet array 10. In this way, the driving force received by the permanent magnet array 10 is greater. By increasing or decreasing the number of permanent magnets 111 of the permanent magnet array 10, the driving force received by the permanent magnet array 10 can be reasonably distributed. It should be noted that the magnet group 100 may further include a carrier 20. The carrier 20 can serve as the base of the magnet group 100 to provide support and installation space for the permanent magnet array 10. At the same time, the carrier 20 can be formed by splicing multiple plate-like structures into a box-like structure with one side open, and the outer periphery of the carrier 20 is attached to the outer contour of the permanent magnet array 10 to reduce the occupied space of the magnet group 100 and improve the protection of the permanent magnet array 10 to ensure that it is not interfered or damaged by the outside during operation.

[0039] The plurality of permanent magnets 111 are arranged in a Halbach Array, and the polarity arrangement period of the plurality of permanent magnets 111 along the first preset direction is an NHSH period or an NHS period or an NS period, where N represents the north pole, S represents the south pole, and H represents the Halbach Array.

[0040] Specifically, the NHS period means that the plurality of permanent magnets 111 are arranged in sequence as N-pole permanent magnets, H array, and S-pole permanent magnets in the first preset direction. The NHSH period arrangement refers to the plurality of permanent magnets 111 arranged in sequence as N-pole permanent magnets, H array, S-pole permanent magnets, and H array in the first preset direction. The NS period arrangement refers to the plurality of permanent magnets 111 arranged in sequence as N-pole permanent magnets and S-pole permanent magnets in the first preset direction. It can be understood that the NS permanent magnets are used to couple with the coil to drive the movement of the mover module 10, and a plurality of NS permanent magnets can also be arranged in a periodic regular order to form a Halbach Array. The H array is a Halbach Array. It can be understood that the Halbach Array is a magnet structure that can generate a stronger magnetic field with a small number of permanent magnets 111. The Halbach Array can converge the magnetic field lines on one side of the magnet and weaken the magnetic field lines on the other side of the magnet, so that on the basis of the same number of permanent magnets 111 in the permanent magnet array 10, the intensity of the magnetic field generated by the permanent magnet array 10 is enhanced to obtain a more ideal unilateral magnetic field. The specific principle of the Halbach Array has been publicly known in the related art and will not be elaborated in this application.

[0041] Refer to Figure 1, while the permanent magnet 111 in the present application has a relatively arranged first end face 1111 and a second end face 1112 in the second preset direction, and the magnetic field of the first end face 1111 is greater than that of the second end face 1112, so that the first end face 1111 is the side where the magnetic force lines are the most concentrated, which is convenient for making the first end face 1111 close to the arc-shaped stator module during installation, conducive to further reducing the waste of the magnetic field of the permanent magnet 111, and further conducive to improving the utilization rate of the magnetic field of the permanent magnet 111.

[0042] In the magnet steel group 100, the mover module 1000 and the conveyor line of the present application, by arranging the first end faces 1111 of the permanent magnets 111 of the permanent magnet array 10 in a stepped manner along the first preset direction, the space margin during bending is effectively increased. During the conveying process of a complex path, especially when passing through the arc section, the physical interference risk between the permanent magnet 111 and the arc-shaped stator module can be effectively reduced, ensuring that the mover module 1000 can pass through the bend stably and smoothly even when carrying a long permanent magnet array 10, significantly improving the reliability and operation efficiency to ensure the service life.

[0043] In addition, multiple permanent magnets 111 of the permanent magnet array 10 also adopt the Halbach array or a specific NHSH cycle, NHS cycle polarity arrangement mode, significantly enhancing the uniformity and directivity of the magnetic field distribution to form a first end face 1111 with a larger magnetic field. Thus, this layout ensures that the most concentrated and effective part of the magnetic force lines can be directly coupled with the arc-shaped stator module, thereby maximizing the transfer of magnetic energy and converting it into a stronger and more efficient driving force. This design not only reduces the unnecessary dissipation of magnetic field energy but also significantly improves the utilization efficiency of the magnetic field of the permanent magnet 111, having significant advantages for reducing the overall energy consumption and improving the system energy efficiency. In summary, through its unique stepped arrangement and optimized magnetic field layout, the magnet steel group 100 of the present invention not only solves the stability problem of the mover module 1000 of the conveyor line during operation on a complex path but also realizes the efficient utilization of magnetic field resources, providing important support for the performance improvement and cost optimization of the conveyor line.

[0044] Furthermore, in the first preset direction, with the central axis of the permanent magnet 111 located at the center as the symmetry axis AA, multiple permanent magnets 111 are symmetrically arranged with respect to the symmetry axis AA, and the second end faces 1112 of the multiple permanent magnets 111 are coplanar. In the second preset direction, the length values of at least some of the permanent magnets 111 close to the symmetry axis AA are greater than those of the permanent magnets 111 far from the symmetry axis AA. It can be understood that during the bending process of the arc-shaped stator module, the spatial margin of the permanent magnet array 10 during bending is effectively increased, and the possibility of interference between the permanent magnet 111 and the arc-shaped stator module during turning can be effectively reduced. That is, in the embodiment of the present application, even if there is a long permanent magnet array 10, stable turning can be ensured, and it is not easily interfered by the arc-shaped stator module.

[0045] Further, the permanent magnet array 10 includes a plurality of magnetic blocks 11 spliced in sequence along the first preset direction, and each magnetic block 11 includes at least two permanent magnets 111. Among them, in some embodiments, the lengths of the permanent magnets 111 in each magnetic block 11 in the second preset direction are the same, thus significantly reducing the manufacturing cost because there is no need to customize different-length molds or production processes for different permanent magnets 111, thereby realizing the standardization and scale of the production process. Secondly, the permanent magnets 111 with the same length make the installation process simpler and faster, reduce the installation errors that may be caused by size differences, and improve the overall installation efficiency and quality. In some embodiments, the lengths of the permanent magnets 111 in each magnetic block 11 in the second preset direction are different. In this way, the distance between each adjacent permanent magnet 111 and the installation end in the direction away from the symmetry axis AA becomes larger and larger, thereby further effectively increasing the spatial margin of the permanent magnet array 10 during bending, thereby significantly reducing the risk of interference with the coil board, and ensuring the smooth operation and high efficiency of the mover module 1000 on the bending path.

[0046] Refer to Figure 1 , optionally, in the first preset direction, the multiple permanent magnets 111 include secondary magnets 111a located at opposite ends, the permanent magnets 111 in the middle have a first magnetic moment T1, the secondary magnets 111a have a second magnetic moment T2, the first magnetic moment T1 is greater than the second magnetic moment T2, the first magnetic moment T1 is the length of the permanent magnet 111 along the second preset direction, and the second magnetic moment T2 is the length of the secondary magnet 111a along the second preset direction. By reducing the magnetic moment T2 of the secondary magnet 111a and increasing the magnetic moment T1 of the middle permanent magnet 111, the end effect that may be generated at both ends of the magnet arrangement is effectively reduced. This differential design not only improves the working efficiency of the mover module 1000 but also enhances its stability and reliability in complex motions.

[0047] In some structural forms, the magnetic blocks 11 at both ends in the first preset direction are secondary magnetic blocks 11a. The secondary magnetic block 11a includes at least two permanent magnets 111, and the polarity arrangement of the outermost permanent magnet 111 is H, where H represents the Halbach array. It can be understood that the outermost permanent magnet 111 is the permanent magnet 111 farthest from the symmetry axis AA. By making the outermost permanent magnet 111 a Halbach array, since the Halbach array can enhance the magnetic field in a specific direction, the driving force on the mover module 1000 in the conveying direction can be significantly improved. Further, when the outermost permanent magnet 111 is set as the secondary magnet 111a and the Halbach array is applied, this setting not only enhances the driving force but also cleverly alleviates the influence of the end effect. The end effect, as a common negative phenomenon in magnet arrangement, usually leads to uneven magnetic field distribution and thus affects the overall performance. Through this special configuration of the secondary magnetic block 11a, the adverse effects brought by the end effect can be effectively reduced without sacrificing the overall efficiency, thereby further improving the overall driving efficiency and stability of the conveying system.

[0048] Referring to Figure 1 , in some structural forms, each magnetic block 11 includes three permanent magnets 111. In the first preset direction, the polarity arrangement of the three permanent magnets 111 of the nth magnetic block 11 is NHS in sequence, and the polarity arrangement of the three permanent magnets 111 of the (n + 1)th magnetic block 11 is HXH in sequence, where n is a positive odd number, X is N or S, N represents the north pole, S represents the south pole, and H represents the Halbach array. It can be understood that in the first preset direction, when n is 1, the polarity arrangement of the three permanent magnets 111 of the first magnetic block 11 is NHS in sequence, that is, on the side of the permanent magnet 111 facing the coil board, the three permanent magnets 111 are arranged in sequence as the N-pole permanent magnet 111, the H array, and the S-pole permanent magnet 111. The polarity arrangement of the three permanent magnets 111 of the second magnetic block 11 is HXH in sequence, that is, on the side of the permanent magnet 111 facing the coil board, the three permanent magnets 111 are arranged in sequence as the H array, the N-pole permanent magnet 111 or the S-pole permanent magnet 111, and the H array. This structural design can improve the driving force under the action of the Halbach array, but at the same time, it is not necessary to make all the permanent magnets 111 of all the magnetic blocks 11 be Halbach arrays to reduce costs. Therefore, this design can not only significantly improve the performance of the conveying system but also achieve a balance of cost-effectiveness technically and economically, providing a reliable and cost-effective solution for various applications.

[0049] Optionally, the coil of the arc-shaped stator module includes a first end and a second end that are oppositely arranged in a second preset direction, and the second end is arranged closer to the permanent magnet 111 than the first end. The maximum distance between at least part of the permanent magnet 111 and the first end is less than half of the distance between the first end and the second end. It should be noted that due to the non-linear characteristic of the magnetic field energy distribution, the magnetic field intensity generated at the center of the coil is the strongest and the magnetic flux is the largest. Such a layout in this application ensures that the permanent magnet 111 can approach the central region with the highest magnetic field intensity generated by the coil as much as possible, thereby maximizing the utilization of magnetic field energy. In this application, by setting the magnetic field coupling between the magnet and the center of the coil, it is ensured that on the basis of the avoidance of the permanent magnet 111, the mover body 200 still receives a relatively high driving force.

[0050] It should be noted that regarding the expression of "at least part of the permanent magnet 111", in the first preset direction, it can be only the permanent magnet 111 on the middle side. For the way of only the permanent magnet 111 on the middle side, the permanent magnets 111 on both sides in the first preset direction can play a role in avoidance to prevent the mover from directly contacting the coil plate during the movement process. On the other hand, "at least part of the magnets" can also be understood to include all the magnets, that is, all the magnets are involved in the magnetic field coupling with the coil and jointly contribute to the improvement of the driving force of the mover. In this case, the magnets on both sides not only avoid the coil but also enhance the overall driving force of the mover through the magnetic field generated by them. Compared with the design that only relies on the middle magnets, this way of full magnet participation can further improve the performance of the mover module 1000.

[0051] Referring to Figure 2 In a second aspect, the present application also proposes a mover module 1000, which includes a mover body 200 and the magnet assembly 100 as described in the first aspect. A through groove 201 is provided on the mover body 200, and the notch 2011 of the through groove 201 is for the coil plate of the arc-shaped stator module to enter and exit. The magnet assembly 100 is arranged on the groove wall of the through groove 201, and the first end face 1111 of the magnet assembly 100 faces the notch 2011 of the through groove 201. Such a setting makes the permanent magnet array 10 in an embedded state on the mover body 200, so that the structure of the magnet assembly 100 and the mover body 200 is relatively compact, and thus it is beneficial to meet the miniaturization requirement of the conveying module. At the same time, when the coil plate of the arc-shaped stator module is periodically energized, the magnet assembly 100 will cause the mover body 200 to continuously receive a driving force along the conveying direction due to the magnetic field generated by the coil plate. The mover module 1000 of the present application uses the magnet assembly 100 described in the first aspect, which is beneficial to reduce the possibility of being collided when turning, so as to ensure the service life.

[0052] Referring to Figure 3 and Figure 4, in some structural forms, the permanent magnet array 10 includes a first permanent magnet array 10A and a second permanent magnet array 10B. The first permanent magnet array 10A is disposed on the first slot wall 201A, and the second permanent magnet array 10B is disposed on the second slot wall 201B. In this way, the permanent magnet array 10 is arranged on both the first slot wall 201A and the second slot wall 201B, efficiently utilizing the space and significantly enhancing the magnetic force by increasing the number of permanent magnet arrays 10.

[0053] At least a part of the first end faces 1111 of the adjacent permanent magnets 1211 of the first permanent magnet array 10A are arranged in a stepped manner, and the first end faces 1111 of the multiple permanent magnets 1211 of the second permanent magnet array 10B are coplanar. In this way, the first permanent magnet array 10A forms an avoidance space, and a more regular layout is adopted for the second permanent magnet array 10B to ensure the smooth flow and maximum utilization of the magnetic flux. Thus, when the mover module passes through the stator module, when the boundary contours of the upper cover plate and the lower cover plate of the stator body of the stator module are inconsistent near the coil plate, for example, the boundary contour of the lower cover plate protrudes beyond the boundary contour of the upper cover plate, at this time, the lower cover plate is more likely to interfere during the movement process compared to the upper cover plate. By arranging the first permanent magnet array 10A close to the lower cover plate and using the avoidance space formed by its stepped structure, the movement interference caused by the protrusion of the lower cover plate boundary is significantly reduced. At the same time, the second permanent magnet array 10B can be arranged in a regular shape, not only maximizing the utilization of the limited space but also enhancing the effect of magnetic force transmission, ensuring that the mover module 10 can still maintain stable performance and reliable working conditions during high-speed and high-frequency dynamic operation.

[0054] Further, in the second preset direction, the second end faces 1112 of the permanent magnets 1211 of the first permanent magnet array 10A are coplanar with the second end faces 1112 of the permanent magnets 1211 of the second permanent magnet array 10B, and the maximum distance between the first end face 1111 and the second end face 1112 of the permanent magnets 1211 of the first permanent magnet array 10A is less than the distance between the first end face 1111 and the second end face 1112 of the permanent magnets 1211 of the second permanent magnet array 10B. In this way, the multiple permanent magnets 1211 of the first permanent magnet array 10A are more compact to further increase the avoidance space, thereby effectively reducing the movement interference that may be generated due to the movement of the mover module 10.

[0055] Refer to Figure 2, optionally, the mover module 1000 further includes at least one slider 300. The slider 300 is connected to the outer surface of the mover body 200 and is used for sliding connection with the guide rail of the arc-shaped stator module. Wherein, the guide rail extends along the conveying direction, and the mover body 200 is slidably connected to the guide rail through the slider 300, so as to provide support for the mover body 200 to improve the smoothness of movement and at the same time improve the stability of the movement of the mover body 200. Of course, a plurality of sliders 300 can be arranged on the mover body 200, and the plurality of sliders 300 are arranged along the conveying direction to further increase the smoothness of the operation of the mover body 200. Similarly, the number of guide rails can be one, two or more, and this application does not limit this. It should be noted that the slider 300 can be structures such as sliders, rollers or balls.

[0056] In a third aspect, the present application further provides a conveyor line, which includes a base, an arc-shaped stator module, and the mover module 1000 as described in the second aspect. The base is the base of the conveying system and is used to provide support and installation space for the arc-shaped stator module. The conveyor line of the present application uses the mover module 1000 described in the second aspect, which is beneficial to reduce the possibility of being collided during cornering to ensure the service life.

[0057] In the drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components; in the description of the present application, it should be understood that if there are terms such as "upper", "lower", "left", "right", etc. indicating the orientation or positional relationship, it is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the positional relationship in the drawings are only for illustrative purposes and cannot be construed as a limitation of this patent. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.

[0058] The above are only the preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A magnetic steel group (100) for magnetically coupling with an arc-shaped stator module of a conveyor line, characterized in that: The magnetic steel group (100) comprises: A permanent magnet array (10), the permanent magnet array (10) comprising a plurality of permanent magnets (111) arranged in sequence along a first preset direction, the length of each of the permanent magnets (111) extending along a second preset direction, the second preset direction being perpendicular to the first preset direction, and the plurality of permanent magnets (111) being arranged in a Halbach array, or the polarity arrangement period of the plurality of permanent magnets (111) along the first preset direction being an NHSH period or an NHS period or an NS period, N representing the North Pole, S representing the South Pole, and H representing the Halbach array; The permanent magnet (111) has a first end face (1111) and a second end face (1112) arranged opposite to each other in the second preset direction, the magnetic field of the first end face (1111) is greater than the magnetic field of the second end face (1112), and at least part of the first end faces (1111) of adjacent permanent magnets (111) are arranged in a stepped manner along the first preset direction.

2. The magnetic steel group (100) according to claim 1, characterized in that: In the first preset direction, the central axis of the permanent magnet (111) located at the center is used as a symmetry axis (AA), and a plurality of the permanent magnets (111) are symmetrically arranged about the symmetry axis (AA); The second end faces (1112) of the plurality of permanent magnets (111) are arranged in a coplanar manner, and in the second preset direction, the length of at least a portion of the permanent magnets (111) close to the symmetry axis (AA) is greater than the length of the permanent magnets (111) far from the symmetry axis (AA).

3. The magnetic steel group (100) according to claim 2, characterized in that: The permanent magnet array (10) comprises a plurality of magnetic blocks (11) sequentially spliced ​​along the first preset direction, and each of the magnetic blocks (11) comprises at least two permanent magnets (111); The lengths of the permanent magnets (111) in each of the magnetic blocks (11) in the second preset direction are the same, or the lengths of the permanent magnets (111) in each of the magnetic blocks (11) in the second preset direction are different.

4. The magnetic steel group (100) according to claim 3, characterized in that: Each of the magnetic blocks (11) comprises three permanent magnets (111), and in the first preset direction, the polarity arrangement of the three permanent magnets (111) of the nth magnetic block (11) is NHS, and the polarity arrangement of the three permanent magnets (111) of the n+1th magnetic block (11) is HXH, wherein N is a positive odd number, X is N or S, N represents the North Pole, S represents the South Pole, and H represents the Halbach array.

5. The magnetic steel group (100) according to claim 3, characterized in that: The magnetic blocks (11) located at both ends of the first preset direction are secondary magnetic blocks (11a), the secondary magnetic blocks (11a) include at least two permanent magnets (111), and the polarity arrangement of the permanent magnets (111) located on the outermost sides is H, where H represents a Halbach array.

6. The magnetic steel assembly (100) according to claim 1, characterized in that: In the first preset direction, the plurality of permanent magnets (111) include secondary magnets (111a) located at opposite ends, the permanent magnet (111) located in the middle has a first magnetic moment T1, and the secondary magnet (111a) has a second magnetic moment T2, the first magnetic moment T1 is greater than the second magnetic moment T2, the first magnetic moment T1 is the length of the permanent magnet (111) along the second preset direction, and the second magnetic moment T2 is the length of the secondary magnet (111a) along the second preset direction.

7. The magnetic steel group (100) according to claim 1, characterized in that: The coil of the arc-shaped stator module comprises a first end and a second end arranged opposite to each other in a second preset direction, wherein the second end is arranged closer to the permanent magnet (111) than the first end; The maximum distance between at least part of the permanent magnets (111) and the first end is less than half of the distance between the first end and the second end.

8. A mover module (1000), characterized in that: The mover module (1000) comprises a mover body (200) and a magnetic steel group (100) as described in any one of claims 1 to 7, wherein a through slot (201) is provided on the mover body (200), and a notch (2011) of the through slot (201) is provided for the coil plate of the arc-shaped stator module to enter and exit, and the magnetic steel group (100) is arranged on the slot wall of the through slot (201), and the first end face (1111) of the magnetic steel group (100) is arranged toward the notch (2011) of the through slot (201).

9. The mover module (1000) according to claim 8, characterized in that: The through slot (201) comprises a first slot wall (201A) and a second slot wall (201B) which are arranged opposite to each other, the permanent magnet array (10) comprises a first permanent magnet array (10A) and a second permanent magnet array (10B), the first permanent magnet array (10A) being arranged on the first slot wall (201A), and the second permanent magnet array (10B) being arranged on the second slot wall (201B); The first end faces (1111) of at least some adjacent permanent magnets (111) of the first permanent magnet array (10A) are arranged in a stepped manner, and the first end faces (1111) of the plurality of permanent magnets (111) of the second permanent magnet array (10B) are arranged coplanarly.

10. The mover module (1000) according to claim 9, characterized in that: In the second preset direction, the second end face (1112) of the permanent magnet (111) of the first permanent magnet array (10A) is coplanarly arranged with the second end face (1112) of the permanent magnet (111) of the second permanent magnet array (10B), and the maximum distance between the first end face (1111) and the second end face (1112) of the permanent magnet (111) of the first permanent magnet array (10A) is smaller than the distance between the first end face (1111) and the second end face (1112) of the permanent magnet (111) of the second permanent magnet array (10B).

11. A conveyor line, characterized in that: include: The mover module (1000) as claimed in any one of claims 8 to 10; Arc-shaped stator module; A base, the arc-shaped stator module is installed on the base, the movable module (1000) can move relative to the base, and the movable module (1000) can move relative to the arc-shaped stator module on the base.

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