A magnetic damping rotation structure and a magnetic damping generation method

Abstract

The present application belongs to the technical field of electronic components, and provides a magnetic damping rotation structure and a magnetic damping generation method, including: a mounting base; a first annular magnetic shaft, which is fixed on the mounting base, and a plurality of first grooves are evenly opened on at least one end face of the first annular magnetic shaft, and a first magnetic boss is formed between two adjacent first grooves; at least one second annular magnetic shaft is coaxially arranged with the first annular magnetic shaft, and a plurality of second grooves are evenly opened on the surface of one end facing the first magnetic boss, and a second magnetic boss is formed between two adjacent second grooves; there is a gap between the first magnetic boss and the second magnetic boss, and the two correspond to each other one by one and generate a magnetic force of attraction. When the second annular magnetic shaft rotates slowly, the damping value of the attraction between the first annular magnetic shaft and the second annular magnetic shaft changes to generate a light and heavy segment feedback of the hand feel, which effectively improves the damping effect, and can be applied to the fields of mouse, keyboard, car dashboard, etc.

Description

Technical Field

[0001] The present application belongs to the technical field of electronic components, and in particular relates to a magnetic damping rotation structure and a magnetic damping generation method. Background Art

[0002] As the name implies, a magnetic damping rotating structure is a rotating structure that produces a magnetic damping effect through magnetic materials. Its application range is very wide, such as the scroll wheel of a keyboard or mouse, the knob of a car computer, the control knob of a household appliance, etc. 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. This improves the user's feel when using it and makes the rotation of the rotating structure more stable and controllable.

[0003] Take the mouse wheel as an example. When the mouse wheel rotates, it needs to have paragraph feedback and damping feedback so that the user can better control the computer page. However, today's magnetic damping mouse wheels are usually made of a damping wheel composed of multiple small magnets around the central axis to provide a damping feeling to the mouse wheel. This damping wheel composed of small magnets has a complex structure. During production and assembly, the small magnets are easily misaligned and cause rework, which ultimately leads to a high production cost for the magnetic damping mouse wheel.

[0004] Therefore, the above-mentioned technical defects need to be changed urgently. Summary of the invention

[0005] In view of the above-mentioned deficiencies in the prior art, the purpose of the present application is to provide a magnetic damping rotation structure and a magnetic damping generation method, aiming to simplify the structure of the magnetic damping rotation structure and reduce the production cost of the magnetic damping rotation structure.

[0006] A technical solution adopted by the present application to solve the technical problem is as follows: a magnetic damping rotation structure and a magnetic damping generation method, which include:

[0007] Install the base;

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

[0009] and at least one second annular magnetic shaft, which is rotatably disposed on the mounting base and is coaxially disposed with the first annular magnetic shaft, and a plurality of second grooves are evenly formed on the surface of one end of the second annular magnetic shaft facing the first magnetic boss, and a second magnetic boss is formed between two adjacent second grooves;

[0010] 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 one-to-one correspondence and generate a magnetic force of attraction.

[0011] This embodiment is further configured such 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.

[0012] This embodiment is further configured such that both the first groove and the second groove are V-shaped grooves.

[0013] This embodiment is further configured such 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.

[0014] This embodiment is further configured such that a plurality of positioning pins are provided on the second annular magnetic shaft, and the second annular magnetic shaft is fixedly connected to the outer ring wheel via the positioning pins.

[0015] This embodiment is further configured that the outer ring wheel includes:

[0016] A grating clamp ring, the grating clamp ring is coaxially arranged with the second annular magnetic axis, a plurality of light holes are opened in the circumferential direction of the grating clamp ring, and the extending direction of the light holes is parallel to the axial direction of the grating clamp ring;

[0017] And an outer wheel ring, which is sleeved on the outer side wall of the grating clamping ring.

[0018] This embodiment is further configured such 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.

[0019] This embodiment is further configured such that the outer rim is a metal rim.

[0020] A second aspect of the present application provides a method for generating magnetic damping based on the magnetic damping rotating structure according to any one of the first aspects, the method for generating magnetic damping comprising the following steps:

[0021] When the outer ring wheel is rolled by the user, the outer ring wheel drives the second annular magnetic shaft to rotate;

[0022] The second annular magnetic shaft is rotated to cause a displacement 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;

[0023] 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.

[0024] Compared with the prior art, the present application provides a magnetic damping rotation structure and a method for generating magnetic damping. The present solution uses a first groove to separate the end face of the first annular magnetic shaft into a plurality of first magnetic bosses around the central axis, so that the magnetic strength on the end face of the first annular magnetic shaft is evenly distributed on a plurality of first magnetic bosses. Similarly, the magnetic strength on the end face of the second annular magnetic shaft is evenly distributed on a plurality of second magnetic bosses; when the second annular magnetic shaft rotates slowly, the damping value of the attraction between the first annular magnetic shaft and the second annular magnetic shaft changes, generating a light and heavy segment feedback of the hand feel, effectively improving the damping effect, and can be applied to the fields of mouse, keyboard, and car dashboard. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 is a schematic diagram of the overall structure of a magnetic damping rotation structure provided in this embodiment;

[0027] Figure 2 is a schematic diagram of the overall structure of a magnetic damping rotation structure provided in this embodiment from another perspective;

[0028] Figure 3 is an exploded schematic diagram of a magnetic damping rotation structure provided in this embodiment;

[0029] Figure 4 is an exploded schematic diagram of another perspective of a magnetic damping rotation structure provided in this embodiment;

[0030] Figure 5 is an exploded schematic diagram of a first annular magnetic shaft and a second annular magnetic shaft of a magnetic damping rotation structure provided in this embodiment;

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

[0032] Figure 7 is a schematic structural diagram of a second annular magnetic shaft of a magnetic damping rotation structure provided in this embodiment;

[0033] Figure 8 is a schematic diagram of the overall structure of another embodiment of a magnetic damping rotation structure provided in this embodiment;

[0034] Fig. 9is an exploded schematic diagram of another embodiment of a magnetic damping rotation structure provided in this embodiment;

[0035] Fig.10 It is an exploded schematic diagram of another embodiment of a magnetic damping rotation structure provided in this 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 wheel; 31, grating clamp ring; 311, avoidance groove; 312, light hole; 32, outer wheel 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 in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0038] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are 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, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise specified, "multiple" means two or more.

[0039] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0040] In addition, the technical features involved in the different embodiments of the present invention described above can be combined with each other as long as they do not conflict with each other.

[0041] The present invention provides Figure 1 , Figure 2 and Figure 3 As shown, a magnetic damping rotating structure is a rotating structure that produces a magnetic damping effect through magnetic materials. Its application range is very wide, such as the scroll wheel of a keyboard or mouse, the knob of a car machine, the control knob of a household appliance, etc. 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 feel when using it is improved, and the rotation of the rotating structure is more stable and controllable. The main structure of the present invention includes: 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, and a plurality of first grooves 21 are evenly opened on at least one end face 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 rotatably set on the mounting base 1 and is coaxially set with the first annular magnetic shaft 2, and a plurality of second grooves 41 are evenly opened 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] There is a gap between the first magnetic boss 22 and the second magnetic boss 42, and the first magnetic boss 22 and the second magnetic boss 42 are arranged one by one and generate a magnetic force of attraction. In some embodiments, a connecting shaft is passed between the first magnetic boss 22 and the second magnetic boss 42.

[0043] Specifically, the mounting base 1 is used to install and fix various structural components. Different functional components, such as a rotary switch, a photoelectric switch, etc., can be arranged on the mounting base 1 according to functional requirements. A connecting shaft 11 is arranged on the mounting base 1. In some embodiments, the connecting shaft 11 is configured as a metal shaft to ensure the structural strength and durability of the rotating structure; the first annular magnetic shaft 2 is sleeved on the connecting shaft 11 and fixed on the mounting base 1. A plurality of first grooves 21 are evenly opened on at least one end face of the two end faces of the first annular magnetic shaft 2. The plurality of first grooves 21 extend in the axial direction away from the first annular magnetic shaft 2, and a first magnetic boss 22 is formed between two adjacent first grooves 21. The opening of the first groove 21 can weaken the magnetism at this position. Therefore, the magnetic attraction on the end face of the first annular magnetic shaft 2 can be evenly distributed on the plurality of first magnetic bosses 22. The outer ring wheel 3 is sleeved on the connecting shaft 11; the second annular magnetic shaft 4 is arranged at the axis center of the outer ring wheel 3 and is located on the side of the first annular magnetic shaft 2. The surface of the second annular magnetic shaft 4 close to one end of the second annular magnetic shaft 4 is evenly provided with a plurality of second grooves 41, and the second grooves 41 extend in the axis direction away from the second annular magnetic shaft 4, and a second magnetic boss 42 is formed between two adjacent second grooves 41; similarly, the opening of the second grooves 41 can weaken the magnetism at this position. Therefore, the magnetic attraction force on the end face of the second annular magnetic shaft 4 can be evenly distributed on a plurality of second magnetic bosses 42. Among them, the first magnetic boss 22 and the second magnetic boss 42 are arranged one by one by the magnetic attraction force, and a gap is maintained between the first magnetic boss 22 and the second magnetic boss 42. In some embodiments, an axial step is coaxially arranged on the connecting shaft 11, and the axial 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 kept gap and coaxially connected by the axial step. In some embodiments, the shaft step and the connecting shaft 11 are integrally formed, and both the shaft step and the connecting shaft 11 are made of non-magnetic materials to avoid disrupting the magnetic fields of the first magnetic boss 22 and the second magnetic boss 42 .

[0044] It can be seen that 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 rotates synchronously. At this time, the magnetic attraction between the two magnetic attraction surfaces of the second annular magnetic shaft 4 and the first annular magnetic shaft 2 in the axial direction will change. Then, the damping value of the outer ring wheel 3 changes when it rotates, and the light and heavy segment feedback of the hand feeling is generated.

[0045] It should be noted that, taking the mouse wheel as an example, the mouse wheel needs to have paragraph feedback and damping feedback when it rotates, so that the user can better control the computer page. However, today's magnetic damping mouse wheels are usually made of a damping wheel spliced ​​around a central axis by multiple small magnets to provide a damping feeling to the mouse wheel. This damping wheel made of small magnets has a complex structure, and the small magnets are easily misaligned during production and assembly, resulting in rework, which ultimately leads to a high production cost for the magnetic damping mouse wheel.

[0046] In this solution, the end face of the first annular magnetic shaft 2 is separated into a plurality of first magnetic bosses 22 around the central axis by the first groove 21, so that the magnetic strength on the end face of the first annular magnetic shaft 2 is evenly distributed on a plurality of first magnetic bosses 22. Similarly, the magnetic strength on the end face of the second annular magnetic shaft 4 is evenly distributed on a plurality of second magnetic bosses 42; when the second annular magnetic shaft 4 rotates slowly, the damping value of the first annular magnetic shaft 2 and the second annular magnetic shaft 4 attract each other, and the feedback of the light and heavy sections of the hand feeling is generated, which effectively improves the damping effect. When the outer ring wheel 3 accelerates, the torque inertia can be used to make the second annular magnetic shaft 4 rotate rapidly until the speed of the outer ring wheel 3 and the second annular magnetic shaft 4 is reduced to a speed that cannot overcome the damping and decelerates to a stop.

[0047] In the second embodiment, a first annular magnetic shaft 2 and 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 to the mounting base 1, and a plurality of first grooves 21 are evenly provided on both end surfaces of the first annular magnetic shaft 2, and a first magnetic boss 22 is formed between two adjacent first grooves 21; the two second annular magnetic shafts 4 are respectively rotatably arranged on the mounting base 1, and a plurality of second grooves 41 are evenly provided 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; wherein, the two second magnetic bosses 42 respectively have gaps between the two ends of the first magnetic boss 22, and the first magnetic boss 22 and the second magnetic boss 42 are arranged one-to-one and generate attractive magnetic forces.

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

[0049] In practical applications, the dual magnetic damping roller structure in this embodiment can ensure a better magnetic damping effect when the roller is rolling, and the structural design is simpler and more compact, and can be applied to the roller control requirements of dual-wheel mice or car computers to achieve more roller rolling functions. Figure 6 and Figure 7As shown, 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, so that the two can attract each other, so that the magnetic damping effect generated between the two is better.

[0050] Further, such as Figure 6 and Figure 7 As shown, 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 segment feedback of the magnetic damping rotation structure during rotation clearer, the number of first grooves 21 needs to be the same as the number of second grooves 41, the size of the first magnetic boss 22 needs to be the same as the size of the second magnetic boss 42, and the shape of the first magnetic boss 22 needs to be the same as the shape of the second magnetic boss 42.

[0052] Further, such as Figure 5 and Figure 6 As shown, the first groove 21 and the second groove 41 are both V-shaped grooves. The setting of the V-shaped groove can make the magnetic boss (the first magnetic boss 22 and the second magnetic boss 42) present a structural form that is wide at the bottom and narrow at the top. This structural design allows the magnetic attraction force on the magnetic end surface of the annular magnetic shaft (the first annular magnetic shaft 2 and the second annular magnetic shaft 4) to be concentrated 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 segment feedback between the first annular magnetic shaft 2 and the second annular magnetic shaft 4 is made clearer, and the magnetic damping effect generated between the two is better.

[0053] Furthermore, an outer ring wheel 3 is coaxially arranged on the second annular magnetic shaft 4 , and the outer ring wheel 3 is detachably connected to the second annular magnetic shaft 4 .

[0054] Further, such as Figure 3 , Figure 4 and Figure 5 As shown, a plurality of locating pins 43 are provided on the second annular magnetic shaft 4, and the second annular magnetic shaft 4 is fixedly connected to the outer ring wheel 3 through the locating pins 43. The second annular magnetic shaft 4 is connected to the outer ring wheel 3 through the locating pins 43, and slipping between the two can be avoided through the locating pins 43. In some embodiments, the second annular magnetic shaft 4 is detachably connected to the outer ring wheel 3.

[0055] Further, such as Figure 3 , Figure 4As shown, the outer ring wheel 3 includes: a grating clamping ring 31 and an outer wheel ring 32. The grating clamping ring 31 is coaxially arranged with the second annular magnetic shaft 4. A plurality of light holes 312 are opened in the circumferential direction of the grating clamping ring 31. The extension direction of the light holes 312 is parallel to the axial direction of the grating clamping ring 31. The outer wheel ring 32 is sleeved on the outer side wall of the grating clamping ring 31.

[0056] Further, such as Figure 4 As shown, a clearance groove 311 is provided at the axis center of the grating clamp ring 31, and the clearance groove 311 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 clearance groove 311 at the axis center of the grating clamp ring 31, which can make the entire rotating wheel structure more compact and more integrated. Moreover, the wheel structure composed of the first annular magnetic shaft 2, the second annular magnetic shaft 4 and the grating clamp ring 31 is more reasonable.

[0057] Further, the outer wheel rim 32 is a metal wheel rim. The metal wheel rim has a larger mass, which makes the rotational inertia of the outer wheel rim 32 larger, thereby making the rolling stroke longer.

[0058] A second aspect of the present application provides a method for generating magnetic damping based on the magnetic damping rotating structure according to any one of the first aspects, the method for generating magnetic damping comprising the following steps:

[0059] Step 1: 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 2: The first magnetic boss 22 and the second magnetic boss 42 are offset by rotating the second annular magnetic shaft 4, wherein the first magnetic boss 22 and the second magnetic boss 42 correspond to each other and have opposite magnetic poles, and the first magnetic boss 22 and the second magnetic boss 42 attract each other;

[0061] Step three: damping is generated between the first magnetic boss 22 and the second magnetic boss 42 by changing the magnetic attraction between the first magnetic boss 22 and the second magnetic boss 42 .

[0062] The present application scheme can be applied to the fields of mouse, keyboard, car dashboard, etc. In the field of mouse, for example Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the magnetic damping rotation structure of the present application is configured as a mouse wheel. The mouse wheel can be a single wheel structure design or a double wheel structure design (the double wheel structure design refers to the structure design of the above-mentioned embodiment 2). In the field of keyboards and car dashboards, for example Figure 8 , Fig. 9 and Fig.10As shown, the magnetic damping rotation structure of the present application solution can be configured as a volume control wheel of a keyboard or a car dashboard (it can also be a page scrolling control device).

[0063] Therefore, the third aspect of the present application provides a mouse, which includes: a mouse housing, a circuit board and the magnetic damping rotation structure as described above, wherein a plurality of buttons are arranged on the mouse housing; the circuit board is arranged in the mouse housing, and a light-emitting component and a photosensitive receiving element are arranged on the circuit board; the magnetic damping rotation structure is arranged in the mouse housing; wherein the light-emitting component and the photosensitive receiving element are respectively arranged on both sides of the magnetic damping rotation structure, and the light-emitting component and the photosensitive receiving element are respectively arranged corresponding to the two ends of the light-through hole 312.

[0064] In some embodiments, the light emitting element and the photosensitive receiving element are arranged at the same end of the light through hole 312. A reflector is arranged at the other end of the light through hole 312, and the light emitting plate is used to reflect the light irradiated from the light through hole 312 so that the light is reflected onto the photosensitive receiving element, thereby achieving the technical effect of roller rolling sensing.

[0065] In summary, the present application provides a magnetic damping rotation structure and a method for generating magnetic damping. In this solution, a plurality of first magnetic bosses 22 surrounding the central axis are separated from the end face of the first annular magnetic shaft 2 by a first groove 21, so that the magnetic strength on the end face of the first annular magnetic shaft 2 is evenly distributed on a plurality of first magnetic bosses 22. Similarly, the magnetic strength on the end face of the second annular magnetic shaft 4 is evenly distributed on a plurality of second magnetic bosses 42; when the second annular magnetic shaft 4 rotates slowly, the damping value of the attraction between the first annular magnetic shaft 2 and the second annular magnetic shaft 4 changes, generating a light and heavy segment feedback of the hand feel, effectively improving the damping effect, and can be applied to the fields of mouse, keyboard, and automobile dashboard.

[0066] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention.

Claims

1. A magnetic damping rotation structure, characterized in that: include: Install the base; A first annular magnetic shaft, the first annular magnetic shaft is fixed on the mounting base, a plurality of first grooves are evenly formed on at least one end surface 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, the second annular magnetic shaft is rotatably disposed on the mounting base and is coaxially disposed with the first annular magnetic shaft, a plurality of second grooves are evenly formed on the surface of one end of the second annular magnetic shaft facing the first magnetic boss, and a second magnetic boss is 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 magnetic force of attraction.

2. A 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. A 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 via the positioning pins.

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

7. A 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 wheel rim is a metal wheel rim.

9. A method for generating magnetic damping based on the magnetic damping rotating structure according to any one of claims 4 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 a displacement 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.

Images