A honeycomb-like permanent magnet yoke structure

Abstract

The application discloses a kind of honeycomb-like permanent magnet magnetic throttle structure.The structure includes magnetic throttle bottom plate surface, magnetic throttle frame and elastic anti-collision device.Magnetic throttle bottom plate surface is provided with magnetic throttle bottom plate bolt hole, for being coupled with rotor bottom plate or stator bottom plate;Magnetic throttle frame is provided with honeycomb-like structure, which is composed of magnetic throttle column with symmetric convex letter shape cross section, magnetic throttle column through hole is provided on the column for installing four-cell device, column corner and four-cell device bottom corner completely fit to eliminate gap;Radial elastic anti-collision device is provided outside magnetic throttle end.The structure is made of diamagnetic material, and light weight and high strength are realized through honeycomb-like porous characteristics, with good impact resistance and damping property;Open modular design can be expanded, and radial and axial expansion can be realized according to actual needs to achieve serialized production.The application effectively reduces weight while ensuring structural strength, improves transmission efficiency, reduces vibration and noise, and is suitable for non-contact transmission, contact transmission and traditional transmission system.

Description

Technical Field

[0001] This application relates to the field of transmission system technology, and in particular to a honeycomb-like permanent magnet yoke structure. Background Technology

[0002] In the field of non-contact transmission, honeycomb-like structures have attracted much attention due to their unique mechanical properties and lightweight characteristics. Currently, there are relatively few articles in the field of non-contact transmission specifically addressing non-contact transmission and honeycomb-like structures. For example, one non-contact transmission mechanism based on permanent magnet transmission only touches on the non-contact aspect; this mechanism simply adjusts the position of the disk to change the speed of the output device, without addressing lightweighting. Another method for manufacturing a high-performance cardboard box with a multi-layer honeycomb structure proposes that, due to its honeycomb structure, it not only achieves lightweighting but, more importantly, achieves 30-40% higher mechanical performance than commercially available products. Despite the relatively good development of both non-contact transmission and honeycomb structures, no honeycomb-like sub-components have yet appeared in the field of non-contact transmission. Summary of the Invention

[0003] This invention provides a honeycomb-like permanent magnet yoke structure, comprising: The magnetic yoke base plate 2 is provided with a plurality of magnetic yoke base plate bolt holes 1 for connecting with the rotor base plate 12 or the stator base plate 13. The magnetic yoke frame 9 has a honeycomb-like structure, which is composed of multiple honeycomb-like magnetic yoke columns. The cross-section of the magnetic yoke column is a symmetrical convex-shaped structure. The protruding part 18 of the convex-shaped structure is used to withstand the lateral impact during rotation and reduce the gap between adjacent magnet mounting devices. The magnetic yoke column is provided with a magnetic yoke column through hole 4 for installing the quadcell device 14; The corner 19 of the magnetic yoke column is fully fitted with the corner 15 at the bottom of the quadcell device 14 to eliminate the gap between the magnetic steel cell and the magnetic yoke. An elastic anti-collision device 8 is disposed on the outer side of the end of the magnetic yoke to protect against radial rigid collisions between the magnetic yokes in extreme cases.

[0004] In some embodiments, the bottom of the magnetic yoke base plate 2 is provided with a raised positioning portion 7, which fully engages with the recessed portion of the base plate to ensure that each layer of magnetic yoke is installed at the same center.

[0005] In some embodiments, the honeycomb-like structure is provided with a transverse partition 5, which is located between two upper and lower quad-cell devices 14, and is used to withstand radial impact and improve magnetic shielding efficiency, and prevent magnetic interaction between adjacent magnet mounting devices.

[0006] In some embodiments, the bottom 21 of the magnetic yoke post has the same bottom radius as the four-cell device 14, the two side slopes 20 of the post cooperate with the bottom corner slope 16 of the four-cell device 14, and the front and rear sides 17 of the four-cell device 14 cooperate with the upper and lower surfaces 6 of the through hole 4 of the magnetic yoke post to ensure the adhesion requirements.

[0007] In some embodiments, the magnetic yoke column through holes 4 are arranged axially, with a total of 10 holes on both sides, to improve structural strength and ensure the safe fixation of the quadrupole device 14 after installation.

[0008] In some embodiments, the elastic anti-collision device 8 includes an iron ring 22 and a rubber ring 23, the rubber ring 23 being sleeved on the magnetic yoke 9, and the iron ring 22 being sleeved on the outside of the rubber ring 23.

[0009] In some embodiments, the magnetic yoke is made of a non-magnetic material to constrain the direction of the magnetic circuit and also serves as a carrier for the quadcell device 14.

[0010] In some embodiments, the magnetic yoke employs a forged or precision-cast integral structure.

[0011] In some embodiments, the magnetic yoke structure adopts a scalable open modular design, and the number of magnetic yoke layers can be expanded or reduced in the radial direction as needed to achieve radial modular management. The number of magnets can be increased in the axial direction as needed, and axial expansion can be achieved by increasing the length of the magnets and the thickness of the spacing between adjacent magnets.

[0012] In some embodiments, during radial expansion, the radii of each layer of magnetic yoke are set according to the following rules: Set the inner radius of the innermost magnetic yoke of the rotor to be The thickness of the magnet is The stator and rotor are arranged alternately, with a gap between them of [missing information]. Then the radius of the first layer magnetic yoke of the stator is The radius of the second layer magnetic yoke of the rotor is The radius of the second layer magnetic yoke of the stator is And so on, the radius of the nth magnetic yoke is ; During axial expansion, a gap thickness is provided between the first and second magnet cells. If you need to add If there are multiple magnets, then the length of the magnets needs to be increased plus the thickness between each magnet. ,Right now ,in This refers to the axial length of a single magnet after installation.

[0013] This invention employs a honeycomb-like structure, which, through its inherent properties, ensures strength while reducing weight. It also disperses and absorbs energy during impacts, minimizing structural damage. Furthermore, the honeycomb structure provides excellent impact resistance and vibration damping, effectively absorbing and reducing vibrations to protect the component and the mounted magnet quadcell device from impacts and vibrations. A scalable, open, modular design allows for device serialization. Radial elastic anti-collision devices are used at the ends of the magnetic yokes to protect against rigid radial collisions between the magnetic yokes during extreme impacts. This results in easier manufacturing and more stable and reliable performance. Attached Figure Description

[0014] The accompanying drawings illustrate, by way of example and not limitation, the various embodiments discussed herein.

[0015] Figure 1 This is a schematic diagram of a honeycomb-like magnetic yoke component structure; Figure 2 Schematic diagram of permanent magnet thrust bearing installation; Figure 3 This is a schematic diagram of the structure of a quadcell device (magnet mounting device); Figure 4 A schematic diagram of the cross-sectional structure of a honeycomb-like magnetic yoke column; Figure 5 This is a schematic diagram of the cross-sectional structure of the elastic anti-collision device; Figure 6 A schematic diagram of the radial expansion of the cross-section of a permanent magnet thrust bearing device; Figure 7 This is a schematic diagram of the axial expansion of a permanent magnet thrust bearing device.

[0016] Symbol explanation: 1. Magnetic yoke base plate bolt holes; 2. Magnetic yoke base plate surface; 3. Magnetic yoke honeycomb-like starting point; 4. Magnetic yoke column through hole; 5. Magnetic yoke honeycomb-like transverse partition; 6. Upper and lower surfaces of the magnetic yoke hole; 7. Protrusion positioning; 8. Elastic anti-collision device; 9. Magnetic yoke frame; 10. Cross-section of the honeycomb-like magnetic yoke column; 11. Magnetic yoke structure; 12. Rotor base plate; 13. Stator base plate; 14. Quadcell device; 15. Corner at the bottom of the quadcell; 16. Beveled surface at the bottom corner; 17. Front and rear surfaces of the quadcell; 18. Protruding part of the magnetic yoke column; 19. Column corner; 20. Beveled surfaces on both sides of the column; 21. Bottom of the column; 22. Iron ring; 23. Rubber ring. Detailed Implementation

[0017] In order to gain a more detailed understanding of the features and technical content of the embodiments of this application, the implementation of the embodiments of this application will be described in detail below with reference to the accompanying drawings. The accompanying drawings are for reference and illustration only and are not intended to limit the embodiments of this application.

[0018] In the embodiments described in this application, it should be noted that, unless otherwise stated and limited, the term "connection" should be interpreted broadly. For example, it can be an electrical connection, or a connection between two internal components. It can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above term according to the specific circumstances.

[0019] It should be noted that the terms "first," "second," and "third" used in the embodiments of this application are merely used to distinguish similar objects and do not represent a specific ordering of objects. It is understood that "first," "second," and "third" can be interchanged in a specific order or sequence where permitted. It should be understood that the objects distinguished by "first," "second," and "third" can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in an order other than those illustrated or described herein.

[0020] This invention provides a honeycomb-like permanent magnet yoke structure 11, such as... Figure 1 As shown, it consists of a magnetic yoke base plate 2, a magnetic yoke frame 9, and an elastic anti-collision device 8. The bottom of this structure has 24 magnetic yoke base plate bolt holes 1 for connection with the rotor base plate 12 or the stator base plate 13, wherein... Figure 2 The raised positioning part 7 ensures that the magnetic yoke is installed in the correct position. The rotor and stator are the collective components of this mechanical transmission device. The thickness of the magnetic yoke base plate 2 should reach a certain thickness to ensure that it meets the strength requirements during rotation. In this case, the thickness is 10mm. In the honeycomb-like structure 5, it is the transverse partition of the upper and lower four-cell devices 14. On the one hand, it bears the radial impact, and on the other hand (in this case) it improves the magnetic isolation efficiency and prevents the interaction of the magnetic forces. In the overall structure, its installation method is as follows: Figure 2 As shown in the figure above, the installed quadcell devices 14 should be aligned in pairs, where the quadcell devices 14 are as follows: Figure 3 As shown, due to the alignment constraint, the starting point 3 of the magnetic yoke-like honeycomb structure needs to be at a sufficient distance from the magnetic yoke base plate 2 to ensure that the four cells 14 are aligned radially in the stator and rotor. The most important structure of this magnetic yoke structure 11 is its honeycomb-like structure, with the pillars forming the core of this structure. Figure 4The cross-section of this structure is symmetrical, with an overall convex shape. The protruding part 18 serves two purposes: firstly, it withstands the lateral impact during rotation; secondly, it reduces the gaps between the four-cell units 14, improving the overall structural strength. Through holes 4 are drilled on both sides of the protrusion to facilitate the installation of the four-cell unit 14 onto the magnetic yoke. The corner 19 of the column next to the through hole perfectly fits the corner 15 at the bottom of the four-cell unit, eliminating the gap between the magnetic steel cell and the magnetic yoke structure 11, thereby reducing fatigue wear caused by back-and-forth impacts. The bottom 21 of the column should have the same radius as the bottom of the four-cell unit to reduce processing costs. The inclined surfaces 20 on both sides of the column should match the inclined surface 16 at the bottom corner of the four-cell unit, while the front and rear surfaces 17 of the four-cell unit should also fit into the inclined surface 16 at the bottom corner. Figure 1 The upper and lower six surfaces of the central magnetic yoke hole cooperate with each other to ensure the required adhesive force. Figure 1 In the middle, the magnetic yoke column through holes 4 are arranged axially, with a total of 10 on both sides, to improve structural strength and ensure that the quadrupole 14 can be safely fixed after installation, preventing the magnetic yoke device from breaking or the bolts from breaking during rotation. A radial elastic anti-collision device 8 is designed on the outer side of the magnetic yoke end. Figure 5 As shown, the iron ring 22 is fitted onto the magnetic yoke frame 9 on the basis of the rubber ring 23 to protect against the radial rigid collision between the magnetic yokes under extreme impact.

[0021] Since the rotor's magnetic yoke is located at the innermost layer, the inner radius of the innermost magnetic yoke is set to be... The thickness of the magnet is Furthermore, the stator and rotor are arranged alternately, with a gap between them of [missing information]. Then, for the first layer of the stator magnetic yoke, the radius (inner radius) is... The radius of the second layer magnetic yoke of the rotor is The radius of the second layer magnetic yoke of the stator is ...and so on. If the stator or rotor radius of the device is large enough, then the radius of its magnetic yoke is... Therefore, the magnetic yoke can be expanded or reduced according to actual needs, thereby achieving radial modular management.

[0022] Meanwhile, in the axial direction, due to the distance between the first magnet cell and the second magnet cell... The thickness is such that if it is necessary to extend outwards and increase the number of magnets, it is only necessary to increase the length of the magnets plus the thickness between each magnet. ,Right now ,in This refers to the axial length of the magnet after installation. This refers to the number of magnets that need to be added. Of course, when adding magnets, it is essential to ensure that the magnets mounted on the alternating magnetic yokes are aligned with each other to guarantee that the permanent magnet thrust can function properly. A schematic diagram of this structure is shown below. Figure 7As shown.

[0023] The magnetic yoke employs a near-honeycomb structure, with its main body made of non-magnetic material to constrain the magnetic circuit direction. It also serves as the support for the near-honeycomb four-cell magnet mounting device (hereinafter referred to as the magnet mounting device). The protruding part at the bottom of the magnetic yoke must fully mate with the recessed part of the base plate to ensure that each layer of magnetic yokes is aligned with the same center during installation. The magnetic yoke uses a forged or precision-cast integrated structure. The radial thickness of the magnetic yoke mounting device can be adjusted according to application requirements, for example, 30mm. The bottom thickness of the magnetic yoke should meet strength requirements, for example, 10mm. M6 bolts are used to connect the magnetic yoke to the base plate. The holes in the magnetic yoke and the four sides of the magnet mounting device should mate to achieve the required adhesion strength. The overall construction of the magnetic yoke column should also meet high precision requirements. Elastic pads are required during installation of the magnet mounting device and the magnetic yoke to ensure connection strength, using M3 bolts. A radial elastic anti-collision device is designed on the outer side of the magnetic yoke end to protect against rigid radial collisions between magnetic yokes under extreme impacts.

[0024] This invention provides a honeycomb-like permanent magnet yoke structure, such as... Figures 1 to 5 As shown, it includes: The magnetic yoke base plate 2 has multiple magnetic yoke base plate bolt holes 1 for connecting with the rotor base plate 12 or the stator base plate 13.

[0025] The magnetic yoke frame 9 has a honeycomb-like structure, which is composed of multiple honeycomb-like magnetic yoke columns. The cross-section of the magnetic yoke column is a symmetrical convex-shaped structure. The protruding part 18 of the convex-shaped structure is used to withstand the lateral impact during rotation and reduce the gap between adjacent magnetic steel installation devices.

[0026] The magnetic yoke column is provided with a magnetic yoke column through hole 4 for installing the quadcell device 14.

[0027] The corner 19 of the magnetic yoke column is fully fitted with the corner 15 at the bottom of the quadcell device 14 to eliminate the gap between the magnetic steel cell and the magnetic yoke.

[0028] The elastic anti-collision device 8 is located on the outer side of the end of the magnetic yoke and is used to protect against radial rigid collisions between the magnetic yokes in extreme cases.

[0029] In some embodiments, the bottom of the magnetic yoke base plate 2 is provided with a raised positioning portion 7, which fully engages with the recessed portion of the base plate to ensure that each layer of magnetic yoke is installed at the same center.

[0030] In some embodiments, a transverse partition 5 is provided in the honeycomb-like structure. The transverse partition 5 is located between the upper and lower quad-cell devices 14 to withstand radial impact and improve magnetic shielding efficiency, and to prevent magnetic interaction between adjacent magnet mounting devices.

[0031] In some embodiments, the bottom 21 of the magnetic yoke post has the same bottom radius as the quadrupole device 14, the two side slopes 20 of the post cooperate with the bottom corner slope 16 of the quadrupole device 14, and the front and rear sides 17 of the quadrupole device 14 cooperate with the upper and lower sides 6 of the through hole 4 of the magnetic yoke post to ensure the required adhesion force.

[0032] In some embodiments, the magnetic yoke column through holes 4 are arranged axially, with a total of 10 holes on both sides, to improve structural strength and ensure the safe fixation of the quadrupole device 14 after installation.

[0033] In some embodiments, the elastic anti-collision device 8 includes an iron ring 22 and a rubber ring 23, with the rubber ring 23 sleeved on the magnetic yoke 9 and the iron ring 22 sleeved on the outside of the rubber ring 23.

[0034] In some embodiments, the magnetic yoke is made of a non-magnetic material to constrain the direction of the magnetic circuit and also serves as a carrier for the quadcell device 14.

[0035] In some embodiments, the magnetic yoke employs a forged or precision-cast integral structure.

[0036] In some embodiments, the magnetic yoke structure employs a scalable, open, modular design, allowing the number of magnetic yoke layers to be expanded or reduced radially as needed to achieve radial modular management.

[0037] The number of magnets can be increased in the axial direction as needed, and axial expansion can be achieved by increasing the length of the magnets and the thickness of the spacing between adjacent magnets.

[0038] In some embodiments, during radial expansion, the radii of each layer of magnetic yoke are set according to the following rules: Set the inner radius of the innermost magnetic yoke of the rotor to be The thickness of the magnet is The stator and rotor are arranged alternately, with a gap between them of [missing information]. Then the radius of the first layer magnetic yoke of the stator is The radius of the second layer magnetic yoke of the rotor is The radius of the second layer magnetic yoke of the stator is And so on, the radius of the nth magnetic yoke is .

[0039] During axial expansion, a gap thickness is provided between the first and second magnet cells. If you need to add If there are multiple magnets, then the length of the magnets needs to be increased plus the thickness between each magnet. ,Right now ,in This refers to the axial length of a single magnet after installation.

[0040] The technical solutions described in the embodiments of this application can be combined arbitrarily without conflict.

[0041] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A honeycomb-like permanent magnet yoke structure, characterized in that, include: The magnetic yoke base plate surface (2) is provided with a plurality of magnetic yoke base plate bolt holes (1) for connecting with the rotor base plate (12) or the stator base plate (13); The magnetic yoke frame (9) is provided with a honeycomb-like structure. The honeycomb-like structure is composed of multiple honeycomb-like magnetic yoke columns. The cross-section of the magnetic yoke column is a symmetrical convex-shaped structure. The protruding part (18) of the convex-shaped structure is used to withstand the lateral impact during rotation and reduce the gap between adjacent magnetic steel installation devices. The magnetic yoke column is provided with a magnetic yoke column through hole (4) for installing a quad-cell device (14). The corner (19) of the magnetic yoke column is completely fitted with the corner (15) at the bottom of the quadcell device (14) to eliminate the gap between the magnetic steel cell and the magnetic yoke. An elastic anti-collision device (8) is provided on the outer side of the end of the magnetic yoke to protect against radial rigid collisions between the magnetic yokes in extreme cases.

2. The honeycomb-like permanent magnet yoke structure according to claim 1, characterized in that, The bottom of the magnetic yoke base plate (2) is provided with a raised positioning part (7), which is fully engaged with the recessed part of the base plate to ensure that each layer of magnetic yoke is installed at the same center.

3. The honeycomb-like permanent magnet yoke structure according to claim 1, characterized in that, The honeycomb-like structure is provided with a transverse partition (5), which is located between two upper and lower quad-cell devices (14) to withstand radial impact and improve magnetic shielding efficiency, and to prevent magnetic interaction between adjacent magnet mounting devices.

4. The honeycomb-like permanent magnet yoke structure according to claim 1, characterized in that, The bottom (21) of the magnetic yoke column has the same radius as the bottom of the quadrupole device (14). The two inclined surfaces (20) on both sides of the column cooperate with the bottom corner inclined surface (16) of the quadrupole device (14). The front and back (17) of the quadrupole device (14) cooperate with the upper and lower surfaces (6) of the through hole (4) of the magnetic yoke column to ensure the adhesion requirements.

5. The honeycomb-like permanent magnet yoke structure according to claim 1, characterized in that, The magnetic yoke column through holes (4) are arranged axially, with a total of 10 holes on both sides, which are used to improve the structural strength and ensure the safe fixation of the quadrupole device (14) after installation.

6. The honeycomb-like permanent magnet yoke structure according to claim 1, characterized in that, The elastic anti-collision device (8) includes an iron ring (22) and a rubber ring (23). The rubber ring (23) is fitted on the magnetic yoke frame (9), and the iron ring (22) is fitted on the outside of the rubber ring (23).

7. The honeycomb-like permanent magnet yoke structure according to claim 1, characterized in that, The magnetic yoke is made of non-magnetic material and is used to constrain the direction of the magnetic circuit, while also serving as the carrier of the quadcell device (14).

8. The honeycomb-like permanent magnet yoke structure according to claim 1, characterized in that, The magnetic yoke adopts an integrated structure that is forged or precision cast.

9. The honeycomb-like permanent magnet yoke structure according to claim 1, characterized in that, The magnetic yoke structure adopts a scalable open modular design, and the number of magnetic yoke layers can be expanded or reduced in the radial direction according to actual needs to achieve radial modular management. The number of magnets can be increased in the axial direction as needed, and axial expansion can be achieved by increasing the length of the magnets and the thickness of the spacing between adjacent magnets.

10. The honeycomb-like permanent magnet yoke structure according to claim 9, characterized in that, During radial expansion, the radii of each layer of magnetic yokes are set according to the following rules: Set the inner radius of the innermost magnetic yoke of the rotor to be The thickness of the magnet is The stator and rotor are arranged alternately, with a gap between them of [missing information]. Then the radius of the first layer magnetic yoke of the stator is The radius of the second layer magnetic yoke of the rotor is The radius of the second layer magnetic yoke of the stator is And so on, the radius of the nth magnetic yoke is ; During axial expansion, a gap thickness is provided between the first and second magnet cells. If you need to add If there are multiple magnets, then the length of the magnets needs to be increased plus the thickness between each magnet. ,Right now ,in This refers to the axial length of a single magnet after installation.

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