Magnetic damping rotary structure and magnetic damping generation method

Abstract

The present application belongs to the technical field of electronic parts. Provided are a magnetic damping rotary structure and a magnetic damping generation method. The magnetic damping rotary structure comprises: a mounting base; a first annular magnetic shaft fixed to the mounting base, wherein several first grooves are evenly provided in at least one end face of the first annular magnetic shaft, and a first magnetic boss is formed between two adjacent first grooves; and at least one second annular magnetic shaft coaxially arranged with the first annular magnetic shaft, wherein several second grooves are evenly provided in the surface of the end of each second annular magnetic shaft facing the corresponding first magnetic boss, a second magnetic boss is formed between two adjacent second grooves, there is a gap between each first magnetic boss and the corresponding second magnetic boss, and the first magnetic bosses and the second magnetic bosses correspond on a one-to-one basis and generate an attractive magnetic force. When the second annular magnetic shaft rotates slowly, damping values resulting from the attraction between the first annular magnetic shaft and the second annular magnetic shaft change to generate tactile feedback with varying resistance, thereby effectively improving the damping effect. The present application can be applied in fields such as mice, keyboards, and automotive instrument panels.

Description

Magnetic damping rotating structure and method for generating magnetic damping TECHNICAL FIELD

[0001] The present application belongs to the technical field of electronic components, and particularly relates to a magnetic damping rotating structure and a method for generating magnetic damping. BACKGROUND

[0002] As the name implies, the magnetic damping rotating structure is a rotating structure that generates a magnetic damping effect through a magnetic material. Its application range is very wide, such as the scroll wheel of a keyboard or a mouse, the knob of a car machine, the control knob of a household appliance, and the like. The magnetic damping of the magnetic damping rotating structure is mainly used to control the rotation speed of the rotating structure or provide a damping effect. In this way, the user's hand feeling during use is improved, and the rotation of the rotating structure is more stable and controllable.

[0003] Taking the scroll wheel on a mouse as an example, the scroll wheel needs to have paragraph feedback and damping feedback when rotating, so that the user can better control the computer page. However, the magnetic damping mouse wheel of the present day is usually a damping generation wheel composed of a plurality of small magnets around the central shaft, which provides the mouse wheel with a damping feeling. The damping generation wheel structure composed of small magnets is complex, and the small magnets are prone to misalignment during production and assembly, resulting in rework, and ultimately leading to a high production cost of the magnetic damping mouse wheel.

[0004] Therefore, the above-mentioned technical defects need to be changed. SUMMARY

[0005] In view of the above-mentioned deficiencies of the prior art, the purpose of the present application is to provide a magnetic damping rotating structure and a method for generating magnetic damping, which aims to simplify the structure of the magnetic damping rotating structure and reduce the production cost of the magnetic damping rotating structure.

[0006] A technical solution adopted by the present application to solve the technical problem is as follows: a magnetic damping rotating structure and a method for generating magnetic damping, comprising:

[0007] a mounting base;

[0008] a first annular magnetic shaft, the first annular magnetic shaft being fixed on the mounting base, a plurality of first grooves being uniformly arranged on at least one end surface of the first annular magnetic shaft, and a first magnetic boss being formed between two adjacent first grooves;

[0009] and at least one second annular magnetic shaft, the second annular magnetic shaft being rotationally arranged on the mounting base and coaxially arranged with the first annular magnetic shaft, a plurality of second grooves being uniformly arranged on the surface of one end of the second annular magnetic shaft facing the first magnetic boss, and a second magnetic boss being formed between two adjacent second grooves;

[0010] The first magnetic boss and the second magnetic boss are arranged one by one and generate magnetic attraction.

[0011] The first boss and the second boss are arranged one by one and generate magnetic attraction.

[0012] The first boss and the second boss are arranged one by one and generate magnetic attraction.

[0013] The first boss and the second boss are arranged one by one and generate magnetic attraction.

[0014] The first boss and the second boss are arranged one by one and generate magnetic attraction.

[0015] The first boss and the second boss are arranged one by one and generate magnetic attraction.

[0016] The first boss and the second boss are arranged one by one and generate magnetic attraction.

[0017] The first boss and the second boss are arranged one by one and generate magnetic attraction.

[0018] The first boss and the second boss are arranged one by one and generate magnetic attraction.

[0019] The first boss and the second boss are arranged one by one and generate magnetic attraction.

[0020] The first boss and the second boss are arranged one by one and generate magnetic attraction.

[0021] The first boss and the second boss are arranged one by one and generate magnetic attraction.

[0022] The first boss and the second boss are arranged one by one and generate magnetic attraction.

[0023] The first boss and the second boss are arranged one by one and generate magnetic attraction.

[0024] Compared with the prior art, the application provides a magnetic damping rotating structure and a magnetic damping generation method, and the end face of the first annular magnetic shaft is spaced by the first grooves to form a plurality of first magnetic bosses around the central shaft, so that the magnetic intensity on the end face of the first annular magnetic shaft is uniformly distributed on the first magnetic bosses. Similarly, the magnetic intensity on the end face of the second annular magnetic shaft is uniformly distributed on the second magnetic bosses; when the second annular magnetic shaft rotates slowly, the light and heavy paragraph feedback of the hand feeling is generated due to the change of the damping value of the attraction between the first annular magnetic shaft and the second annular magnetic shaft, and the damping effect is effectively improved, which can be applied to the fields of mouse, keyboard, automobile instrument panel and the like. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order 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 needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0026] Fig. 1 is a schematic diagram of the overall structure of a magnetic damping rotating structure provided by the present embodiment;

[0027] Fig. 2 is a schematic diagram of the overall structure of a magnetic damping rotating structure provided by the present embodiment from another perspective;

[0028] Fig. 3 is an exploded schematic diagram of a magnetic damping rotating structure provided by the present embodiment;

[0029] Fig. 4 is an exploded schematic diagram of a magnetic damping rotating structure provided by the present embodiment from another perspective;

[0030] Fig. 5 is an exploded schematic diagram of the first annular magnetic shaft and the second annular magnetic shaft of a magnetic damping rotating structure provided by the present embodiment;

[0031] Fig. 6 is an exploded schematic diagram of the first annular magnetic shaft and the second annular magnetic shaft of a magnetic damping rotating structure provided by the present embodiment from another perspective;

[0032] Fig. 7 is a schematic diagram of the structure of the second annular magnetic shaft of a magnetic damping rotating structure provided by the present embodiment;

[0033] Fig. 8 is a schematic diagram of the overall structure of another embodiment of a magnetic damping rotating structure provided by the present embodiment;

[0034] Fig. 9 is an exploded schematic diagram of another embodiment of a magnetic damping rotating structure provided by the present embodiment;

[0035] Fig. 10 is an exploded schematic diagram of another embodiment of a magnetic damping rotating structure provided by the present embodiment.

[0036] In the figure: 1, mounting base; 11, connecting shaft; 2, first annular magnetic shaft; 21, first groove; 22, first magnetic boss; 3, outer ring; 31, grating clamping ring; 311, avoiding slot; 312, light hole; 32, outer ring; 4, second annular magnetic shaft; 41, second groove; 42, second magnetic boss; 43, positioning pin. DETAILED DESCRIPTION

[0037] The embodiments of the present application are described below in detail, examples of which are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only, for the purpose of explaining the present application, and should not be understood as a limitation of the present application.

[0038] In the description of the present application, it needs to be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the purpose of facilitating the description of the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise specified.

[0039] In the description of the present application, it needs to be explained that, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0040] In addition, the technical features involved in different embodiments of the present application described above can be combined with each other as long as there is no conflict between them.

[0041] The application provides a magnetic damping rotating structure as shown in FIG. 1, FIG. 2 and FIG. 3, which is a rotating structure generating magnetic damping effect through magnetic material. The application range is very wide, such as the scroll wheel of keyboard or mouse, the knob of car radio, the control knob of household appliance and the like. The magnetic damping of the magnetic damping rotating structure is mainly used for controlling the rotating speed of the rotating structure or providing damping effect. In this way, the hand feeling of user during use is improved, and the rotation of the rotating structure is more stable and controllable. The main structure of the application comprises: a mounting base 1, a first annular magnetic shaft 2 and at least one second annular magnetic shaft 4, the first annular magnetic shaft 2 is fixed on the mounting base 1, a plurality of first grooves 21 are uniformly arranged on at least one end surface of the first annular magnetic shaft 2, and a first magnetic boss 22 is formed between two adjacent first grooves 21; the second annular magnetic shaft 4 is rotationally arranged on the mounting base 1 and coaxially arranged with the first annular magnetic shaft 2, a plurality of second grooves 41 are uniformly arranged on the surface of one end of the second annular magnetic shaft 4 facing the first magnetic boss 22, and a second magnetic boss 42 is formed between two adjacent second grooves 41.

[0042] Wherein, the first magnetic boss 22 and the second magnetic boss 42 have a gap therebetween, and the first magnetic boss 22 and the second magnetic boss 42 are one-to-one corresponding and generate attractive magnetic force. In some embodiments, the first magnetic boss 22 and the second magnetic boss 42 are connected through a connecting shaft.

[0043] Specifically, the mounting base 1 is used for mounting and fixing various structural components, and different functional components such as rotary switches, photoelectric switches and the like can be arranged on the mounting base 1 according to the functional requirements. The mounting base 1 is provided with a connecting shaft 11, which is configured as a metal shaft in some embodiments to ensure the structural strength and durability of the rotating structure; a first annular magnetic shaft 2 is sleeved on the connecting shaft 11 and fixed on the mounting base 1, and a plurality of first grooves 21 are uniformly arranged on at least one of the two end faces of the first annular magnetic shaft 2, the first grooves 21 extend in a direction away from the axis of the first annular magnetic shaft 2, and a first magnetic boss 22 is formed between any two adjacent first grooves 21. The arrangement of the first grooves 21 can weaken the magnetism at the position. Therefore, the magnetic attraction force on the end face of the first annular magnetic shaft 2 can be uniformly distributed on the plurality of first magnetic bosses 22. An outer ring wheel 3 is sleeved on the connecting shaft 11; a second annular magnetic shaft 4 is arranged at the axis of the outer ring wheel 3 and located on the side of the first annular magnetic shaft 2, and a plurality of second grooves 41 are uniformly arranged on the surface of the end of the second annular magnetic shaft 4 close to the second annular magnetic shaft 4, the second grooves 41 extend in a direction away from the axis of the second annular magnetic shaft 4, and a second magnetic boss 42 is formed between any two adjacent second grooves 41; similarly, the arrangement of the second grooves 41 can weaken the magnetism at the position. Therefore, the magnetic attraction force on the end face of the second annular magnetic shaft 4 can be uniformly distributed on the plurality of second magnetic bosses 42. The first magnetic boss 22 and the second magnetic boss 42 are arranged one by one through magnetic attraction, and a gap is maintained between the first magnetic boss 22 and the second magnetic boss 42. In some embodiments, a shaft step is coaxially arranged on the connecting shaft 11, and the shaft step is located between the first magnetic boss 22 and the second magnetic boss 42. The first magnetic boss 22 and the second magnetic boss 42 are connected coaxially and maintained at a gap through the shaft step. In some embodiments, the shaft step is integrally formed with the connecting shaft 11, and the shaft step and the connecting shaft 11 are both non-magnetic material structures to avoid disturbing the magnetic field of the first magnetic boss 22 and the second magnetic boss 42.

[0044] As can be seen, the first annular magnetic shaft 2, the second annular magnetic shaft 4 and the outer ring wheel 3 are directly or indirectly sleeved on the connecting shaft 11. When the outer ring wheel 3 is rotated, the second annular magnetic shaft 4 is synchronously rotated. At this time, the magnetic attraction force between the two magnetic attraction surfaces of the second annular magnetic shaft 4 and the first annular magnetic shaft 2 close to each other will change in the axial direction. Further, the damping value changes when the outer ring wheel 3 is rotated to produce a light and heavy paragraph feedback of the hand feeling.

[0045] It should be noted that, taking the scroll wheel on the mouse as an example, the scroll wheel needs to have paragraph feedback and damping feedback when rotating, so that the user can better control the computer page. However, the magnetic damping mouse wheel is usually a damping generation wheel composed of a plurality of small magnets around the central shaft, which provides the mouse wheel with a damping feeling. The structure of the damping generation wheel composed of small magnets is complex, and the small magnets are prone to misalignment during production and assembly, resulting in rework, ultimately leading to high production cost of the magnetic damping mouse wheel.

[0046] The first end face of the first annular magnetic shaft 2 is spaced apart by the first grooves 21 to form a plurality of first magnetic bosses 22 around the central shaft, so that the magnetic intensity on the end face of the first annular magnetic shaft 2 is uniformly distributed on the plurality of first magnetic bosses 22. Similarly, the magnetic intensity on the end face of the second annular magnetic shaft 4 is uniformly distributed on the plurality of second magnetic bosses 42; when the second annular magnetic shaft 4 rotates slowly, the damping value changes due to the attraction between the first annular magnetic shaft 2 and the second annular magnetic shaft 4, thereby generating a light and heavy paragraph feedback of the hand feeling, effectively improving the damping effect. When the outer ring wheel 3 accelerates, the second annular magnetic shaft 4 can rotate rapidly by using the torque inertia, until the rotation speed of the outer ring wheel 3 and the second annular magnetic shaft 4 is reduced to the point that it cannot overcome the damping, and then the speed is reduced to stop.

[0047] In the second embodiment, the first annular magnetic shaft 2 and the two second annular magnetic shafts 4 are coaxially arranged on the connecting shaft 11, and the first annular magnetic shaft 2 and the connecting shaft 11 are fixedly connected with the mounting base 1. A plurality of first grooves 21 are uniformly formed on the two end faces of the first annular magnetic shaft 2, and a first magnetic boss 22 is formed between adjacent two first grooves 21. The two second annular magnetic shafts 4 are rotatably arranged on the mounting base 1, and a plurality of second grooves 41 are uniformly formed on the surface of one end of the second annular magnetic shaft 4 facing the first magnetic boss 22, and a second magnetic boss 42 is formed between adjacent two second grooves 41. The two second magnetic bosses 42 have a gap between the two ends of the first magnetic boss 22, and the first magnetic boss 22 and the second magnetic boss 42 are correspondingly arranged and generate an attractive magnetic force.

[0048] That is, the two second annular magnetic shafts 4 are arranged at the two ends of the first annular magnetic shaft 2, and the two second annular magnetic shafts 4 have a magnetic damping effect between the first annular magnetic shaft 2.

[0049] In practical applications, the double magnetic damping roller structure in the embodiment can ensure better magnetic damping effect when the roller rolls, and the structure design is more simple and compact, which can be applied to the roller control requirements of double-roller mice or car machines to realize more roller rolling functions. Further, as shown in FIGS. 6 and 7, the magnetic poles of the first magnetic boss 22 and the second magnetic boss 42 are opposite. It can be understood that the magnetic poles of the first magnetic boss 22 and the second magnetic boss 42 are opposite, which can attract each other. The magnetic damping effect generated between the two is better.

[0050] Further, as shown in FIGS. 6 and 7, the number of the first grooves 21 is the same as the number of the second grooves 41, the size of the first magnetic boss 22 is the same as the size of the second magnetic boss 42, and the shape of the first magnetic boss 22 is the same as the shape of the second magnetic boss 42.

[0051] It can be understood that, in order to make the click feedback of the magnetic damping rotation structure clearer when rotating, the number of the first grooves 21 is the same as the number of the second grooves 41, the size of the first magnetic boss 22 is the same as the size of the second magnetic boss 42, and the shape of the first magnetic boss 22 is the same as the shape of the second magnetic boss 42.

[0052] Further, as shown in FIGS. 5 and 6, the first grooves 21 and the second grooves 41 are V-shaped grooves. The V-shaped grooves can make the magnetic boss (the first magnetic boss 22 and the second magnetic boss 42) have a structure shape of wide at the bottom and narrow at the top. This structure design can make the magnetic attraction force on the magnetic attraction end surface of the annular magnetic shaft (the first annular magnetic shaft 2 and the second annular magnetic shaft 4) concentrate on the top of the magnetic boss (the first magnetic boss 22 and the second magnetic boss 42) along the slope of the V-shaped groove. The click feedback between the first annular magnetic shaft 2 and the second annular magnetic shaft 4 is more clear, and the magnetic damping effect generated between the two is better.

[0053] Further, the second annular magnetic shaft 4 is coaxially provided with the outer ring wheel 3, and the outer ring wheel 3 is detachably connected with the second annular magnetic shaft 4.

[0054] Further, as shown in FIGS. 3, 4 and 5, the second annular magnetic shaft 4 is provided with a plurality of positioning pins 43, and the second annular magnetic shaft 4 is fixedly connected with the outer ring wheel 3 through the positioning pins 43. The second annular magnetic shaft 4 is connected with the outer ring wheel 3 through the positioning pins 43, and slipping between the two can be avoided. In some embodiments, the second annular magnetic shaft 4 is detachably connected with the outer ring wheel 3.

[0055] Further, as shown in FIG. 3 and FIG. 4, the outer ring wheel 3 comprises a grating clamping ring 31 and an outer ring 32, the grating clamping ring 31 is coaxially arranged with the second annular magnetic shaft 4, a plurality of light transmission holes 312 are arranged in the circumferential direction of the grating clamping ring 31, and the extension direction of the light transmission hole 312 is parallel to the axial direction of the grating clamping ring 31; the outer ring 32 is sleeved on the outer sidewall of the grating clamping ring 31.

[0056] Further, as shown in FIG. 4, the axial center of the grating clamping ring 31 is provided with a relief groove 311, which is used to avoid the first annular magnetic shaft 2 and the second annular magnetic shaft 4. The first annular magnetic shaft 2 and the second annular magnetic shaft 4 are accommodated in the relief groove 311 at the axial center of the grating clamping ring 31, which can make the whole rotating wheel structure more compact and have higher integration. Moreover, the wheel structure composed of the first annular magnetic shaft 2, the second annular magnetic shaft 4 and the grating clamping ring 31 is more reasonable.

[0057] Further, the outer ring 32 is a metal ring. The mass of the metal ring is larger, so that the rotational inertia of the outer ring 32 is larger. Further, the rolling stroke is longer.

[0058] The second aspect of the present application provides a magnetic damping generation method based on the magnetic damping rotating structure of any one of the first aspect, the magnetic damping generation method comprising the following steps:

[0059] Step one, when the outer ring wheel 3 is rolled by the user, the outer ring wheel 3 drives the second annular magnetic shaft 4 to rotate;

[0060] Step two, the first magnetic boss 22 and the second magnetic boss 42 are offset by the rotation of the second annular magnetic shaft 4, wherein the first magnetic boss 22 and the second magnetic boss 42 are one-to-one corresponding, and the magnetic poles of the two are opposite, and the first magnetic boss 22 and the second magnetic boss 42 attract each other;

[0061] Step three, the magnetic attraction between the first magnetic boss 22 and the second magnetic boss 42 changes, so that the damping between the first magnetic boss 22 and the second magnetic boss 42 is generated.

[0062] The present application scheme can be applied to the fields of mouse, keyboard, automobile instrument panel, etc. In the field of mouse, as shown in FIG. 1, FIG. 2, FIG. 3 and FIG. 4, the magnetic damping rotating structure of the present application scheme is configured as the scroll wheel of the mouse. Among them, the scroll wheel of the mouse can be a single scroll wheel structure design, or a double scroll wheel structure design (the double scroll wheel structure design refers to the structure design of the above-mentioned embodiment two). In the field of keyboard and automobile instrument panel, as shown in FIG. 8, FIG. 9 and FIG. 10, the magnetic damping rotating structure of the present application scheme can be configured as the volume control scroll wheel (also can be a page scrolling control device) of the keyboard or the automobile instrument panel.

[0063] Therefore, the third aspect of the present application provides a mouse, which comprises a mouse shell, a circuit board and a magnetic damping rotation structure as described above, the mouse shell is provided with a plurality of keys; the circuit board is arranged in the mouse shell, the circuit board is provided with a light emitting element and a photosensitive receiving element; the magnetic damping rotation structure is arranged in the mouse shell; wherein the light emitting element and the photosensitive receiving element are arranged on both sides of the magnetic damping rotation structure respectively, and the light emitting element and the photosensitive receiving element are arranged at both ends of the light transmission hole 312 respectively.

[0064] In some embodiments, the light emitting element and the photosensitive receiving element are arranged at the same end of the light transmission hole 312. The other end of the light transmission hole 312 is provided with a light-reflecting plate, and the light-reflecting plate is used for reflecting the light irradiated from the light transmission hole 312 to the photosensitive receiving element. In this way, the technical effect of the scroll wheel rolling induction is achieved.

[0065] In summary, the present application provides a magnetic damping rotation structure and a magnetic damping generation method. The end face of the first annular magnetic shaft 2 is spaced apart from a plurality of first magnetic bosses 22 around the central shaft by the first groove 21, so that the magnetic intensity on the end face of the first annular magnetic shaft 2 is uniformly distributed on the plurality of first magnetic bosses 22. Similarly, the magnetic intensity on the end face of the second annular magnetic shaft 4 is uniformly distributed on a plurality of second magnetic bosses 42. When the second annular magnetic shaft 4 rotates slowly, the light and heavy paragraph feedback of the hand feeling is generated due to the change of the damping value of the attraction between the first annular magnetic shaft 2 and the second annular magnetic shaft 4, which effectively improves the damping effect and can be applied to the fields of mouse, keyboard, automobile instrument panel, etc.

[0066] Obviously, the above embodiments are only examples for clearly illustrating, and not limit the implementation. For those skilled in the art, on the basis of the above description, other different forms of changes or variations can also be made. Here, all the implementation is not required and cannot be exhausted. The obvious changes or variations derived therefrom are still within the protection scope of the present application.

Claims

1. A magnetic damping rotation structure, characterized in that: include: Install the base; a first annular magnetic shaft, the first annular magnetic shaft being fixed to the mounting base, a plurality of first grooves being evenly formed on at least one end surface of the first annular magnetic shaft, and a first magnetic boss being formed between two adjacent first grooves; and at least one second annular magnetic shaft, the second annular magnetic shaft being rotatably mounted on the mounting base and being coaxially disposed with the first annular magnetic shaft, a plurality of second grooves being uniformly formed on a surface of an end of the second annular magnetic shaft facing the first magnetic boss, a second magnetic boss being formed between two adjacent second grooves; There is a gap between the first magnetic boss and the second magnetic boss, and the first magnetic boss and the second magnetic boss are arranged in a one-to-one correspondence and generate a mutual attractive magnetic force.

2. The magnetic damping rotation structure according to claim 1, characterized in that: The number of the first grooves is the same as the number of the second grooves, the size of the first magnetic boss is the same as the size of the second magnetic boss, and the shape of the first magnetic boss is the same as the shape of the second magnetic boss.

3. The magnetic damping rotation structure according to claim 1, characterized in that: The first groove and the second groove are both V-shaped grooves.

4. The magnetic damping rotation structure according to claim 1, characterized in that: An outer ring wheel is coaxially arranged on the second annular magnetic shaft, and the outer ring wheel is detachably connected to the second annular magnetic shaft.

5. The magnetic damping rotation structure according to claim 4, characterized in that: The second annular magnetic shaft is provided with a plurality of positioning pins, and the second annular magnetic shaft is fixedly connected to the outer ring wheel through the positioning pins.

6. The magnetic damping rotation structure according to claim 4, characterized in that: The outer ring wheel comprises: a grating clamping ring, the grating clamping ring being coaxially arranged with the second annular magnetic shaft, the grating clamping ring being provided with a plurality of light-through holes in a circumferential direction thereof, the light-through holes extending in a direction parallel to the axis of the grating clamping ring; and an outer wheel ring, wherein the outer wheel ring is sleeved on the outer side wall of the grating clamp ring.

7. The magnetic damping rotation structure according to claim 6, characterized in that: An avoidance groove is provided at the axis center of the grating clamp ring, and the avoidance groove is used to avoid the first annular magnetic axis and the second annular magnetic axis.

8. The magnetic damping rotation structure according to claim 6, characterized in that: The outer rim is a metal rim.

9. A method for generating magnetic damping based on the magnetic damping rotating structure according to any one of claims 1 to 8, characterized in that: The magnetic damping generation method comprises the following steps: When the outer ring wheel is rolled by the user, the outer ring wheel drives the second annular magnetic shaft to rotate; The second annular magnetic shaft is rotated to cause an offset between the first magnetic boss and the second magnetic boss, wherein the first magnetic boss and the second magnetic boss correspond to each other and have opposite magnetic poles, and the first magnetic boss and the second magnetic boss attract each other; The magnetic attraction between the first magnetic boss and the second magnetic boss changes, so that damping is generated between the first magnetic boss and the second magnetic boss.

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