Roller input device

Abstract

A roller input device comprises a base, a roller module, a second magnetic part and a movable part. The roller module is arranged on the base and comprises a roller and a plurality of first magnetic parts; the plurality of first magnetic parts are positioned on one side of the roller and are annularly arranged; the second magnetic part is fixed on the base and corresponds to one of the plurality of first magnetic parts. The second magnetic part and the corresponding first magnetic part are spaced and have magnetic attraction force. The movable piece is arranged on the base and can move between a first position and a second position, and the movable piece is provided with a third magnetic piece. When the movable part is located at the first position, the third magnetic part does not correspond to the second magnetic part, and when the movable part is located at the second position, the third magnetic part and the second magnetic part attract or repel each other to reduce the magnetic attraction force.

Description

Technical Field

[0001] The present invention relates to an input device, in particular to a roller input device. Background Art

[0002] Generally, computers are often equipped with a scroll wheel input device. For example, a scroll wheel input device may be provided on a keyboard or a mouse, so that actions such as dragging, scrolling pages up and down, or switching menus can be performed through the scroll wheel input device.

[0003] Common scroll wheel input devices currently available generally consist of a scroll wheel and an elastic member. The scroll wheel body is provided with a toothed surface, which the elastic member abuts against. This creates a tactile sensation when the scroll wheel is rotated. For example, the user experiences a pause each time the wheel rotates one notch, indicating that the screen page has been scrolled a predetermined distance. However, this type of scroll wheel input device still fails to meet certain usage scenarios, such as requiring prolonged or long-distance scrolling or requiring finer scrolling. Summary of the Invention

[0004] In view of the above, in one embodiment, a roller input device is provided, including a base, a roller module, a second magnetic part, and a movable part. The roller module is rotatably disposed on the base, and the roller module includes a roller and a plurality of first magnetic parts, wherein the first magnetic parts are located on one side of the roller and are arranged in a ring shape. The second magnetic part is fixed on the base and adjacent to the roller, and the second magnetic part corresponds to one of the first magnetic parts, and a space is maintained between the second magnetic part and the corresponding first magnetic part and has a magnetic attraction. The movable part is disposed on the base and can be moved between a first position and a second position relative to the base, and the movable part has a third magnetic part. Wherein, when the movable part is in the first position, the third magnetic part does not correspond to the second magnetic part, and when the movable part is in the second position, the third magnetic part and the second magnetic part attract or repel each other to reduce the above-mentioned magnetic attraction.

[0005] In one or more embodiments, when the movable member is in the second position, the third magnetic member is located in the separation space.

[0006] In one or more embodiments, when the movable member is in the second position, the distance between the third magnetic member and the second magnetic member is smaller than the distance between the second magnetic member and the corresponding first magnetic member. In one or more embodiments, the base has a guide member, and the movable member is slidably disposed on the guide member.

[0007] In one or more embodiments, the base has a pivotal member, the movable member has a pivotal portion, and the pivotal portion is pivotally disposed on the pivotal member.

[0008] In one or more embodiments, the movable member has an extension plate, the extension plate has a groove, the groove has an opening, when the movable member is in the second position, the opening of the groove faces the second magnetic member, and the third magnetic member is disposed in the groove.

[0009] In one or more embodiments, at least two of the sizes of each of the first magnetic component, the second magnetic component, and the third magnetic component are different.

[0010] In one or more embodiments, at least two of the magnetic forces of each first magnetic component, the magnetic forces of the second magnetic component, and the magnetic forces of the third magnetic component are different.

[0011] In one or more embodiments, the roller has a side surface, and a plurality of first magnetic members are annularly arranged on the side surface.

[0012] In one or more embodiments, the roller module has an extension member, which is located at one side of the roller and coaxially arranged with the roller, and a plurality of first magnetic members are arranged on the extension member.

[0013] In one or more embodiments, the scroll wheel input device further includes a shell, the base, the scroll wheel module, the second magnetic component and the movable component are arranged inside the shell, the shell has a through hole, and the movable component has a control part that is movably located in the through hole.

[0014] In one or more embodiments, the base has a roller seat, the roller seat has a bearing, the roller has a shaft, and the shaft is pivotally mounted on the bearing.

[0015] In summary, according to the scroll wheel input device of the embodiment of the present invention, the user can manipulate the movable member to move to the first position or the second position to switch between different operating modes. Specifically, when the movable member is in the first position, the third magnetic member does not correspond to the second magnetic member, and does not affect the magnetic attraction between the second magnetic member and the first magnetic member, so that when the scroll wheel rotates, the magnetic attraction between the second magnetic member and the plurality of first magnetic members can change to produce a segmented tactile feeling, thereby achieving the advantages of avoiding mechanical errors, reducing operating noise, and reducing friction losses. When the movable member is in the second position, the third magnetic member and the second magnetic member attract or repel each other to significantly reduce the magnetic attraction between the second magnetic member and the first magnetic member, so that the scroll wheel does not generate resistance when rotating and can perform fast rotation or more delicate operations, which is suitable for certain usage scenarios (for example, the scroll wheel needs to be rotated for a long time or a long distance, or a more delicate scrolling operation is required). BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 2 is a schematic diagram of an application of an embodiment of the roller input device of the present invention.

[0017] Figure 2 FIG. 2 is a schematic diagram of an application of another embodiment of the roller input device of the present invention.

[0018] Figure 3 It is a perspective view of the first embodiment of the roller input device of the present invention.

[0019] Figure 4 It is an exploded perspective view of the first embodiment of the roller input device of the present invention.

[0020] Figure 5 FIG1 is a cross-sectional view of the movable member of the first embodiment of the roller input device of the present invention at a first position.

[0021] Figure 6 FIG. 1 is a cross-sectional view of the movable member of the first embodiment of the roller input device of the present invention at the second position.

[0022] Figure 7 It is a perspective view of a second embodiment of the roller input device of the present invention.

[0023] Figure 8 It is an exploded perspective view of the second embodiment of the roller input device of the present invention.

[0024] Figure 9 FIG. 1 is a side view of the movable member of the second embodiment of the roller input device of the present invention in the first position.

[0025] Figure 10 FIG. 1 is a side view of the movable member of the second embodiment of the roller input device of the present invention in the second position.

[0026] Figure 11 yes Figure 10 Cross-sectional view along line segment 11-11.

[0027] Description of reference numerals:

[0028] 1, 2: Scroll wheel input device

[0029] 10: Base

[0030] 12: Guide

[0031] 121: Guide rail

[0032] 15: Pivot

[0033] 151: Pivot

[0034] 16: Roller seat

[0035] 161: Bearings

[0036] 162: Groove

[0037] 17: Carrier

[0038] 20: Roller module

[0039] 21: Scroll wheel

[0040] 211: Side

[0041] 212: Shaft

[0042] 22: Extension

[0043] 25: First magnetic part

[0044] 251: First surface

[0045] 30: Second magnetic piece

[0046] 301: Second surface

[0047] 40, 40A: moving parts

[0048] 401: Slider

[0049] 41: Pivot

[0050] 42: Control Department

[0051] 43: Extension plate

[0052] 431: Groove

[0053] 432: Opening

[0054] 45: The third magnetic part

[0055] 451: Third Surface

[0056] 50: Shell

[0057] 51: Through hole

[0058] S: Interval space

[0059] D, D1, D2: Spacing DETAILED DESCRIPTION

[0060] Various embodiments are described below in detail. However, these embodiments are intended for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, some elements are omitted from the drawings in the embodiments to clearly illustrate the technical features of the present invention. The same reference numerals will be used throughout the drawings to indicate the same or similar elements.

[0061] Figure 1 This is a schematic diagram of an application of an embodiment of the roller input device of the present invention. Figure 2 FIG. 1 is a schematic diagram showing another embodiment of the roller input device of the present invention. Figure 1 and Figure 2 As shown, the wheel input device 1 can be an input device of a computer, used to control the computer page to perform actions (such as dragging, scrolling up and down pages, or switching menus). Figure 1As shown, the wheel input device 1 can be a mouse, or Figure 2 As shown, the scroll wheel input device 2 may also be a keyboard, but this is not limited.

[0062] Figure 3 This is a perspective view of a first embodiment of the scroll wheel input device of the present invention. Figure 4 This is an exploded perspective view of the first embodiment of the scroll wheel input device of the present invention. Figure 5 is a cross-sectional view of the movable member of the first embodiment of the roller input device of the present invention in the first position, Figure 6 sectional view of the movable member of the first embodiment of the roller input device of the present invention in the second position. Figure 1 、 Figures 3 to 6 As shown, the scroll wheel input device 1 includes a base 10, a scroll wheel module 20, a second magnetic member 30, a movable member 40 and a housing 50, wherein the base 10, the scroll wheel module 20, the second magnetic member 30 and the movable member 40 can be disposed inside the housing 50 (e.g., Figure 1 shown).

[0063] like Figures 3 to 6 As shown, the roller module 20 is rotatably disposed on the base 10, that is, the roller module 20 can rotate relative to the base 10 when operated by the user. For example, in this embodiment, the roller module 20 includes a roller 21 and a plurality of first magnetic members 25. The base 10 has a roller seat 16. The roller seat 16 is a hollow shell and has a groove 162. A partial area of the roller 21 (here, the lower half area) is located in the groove 162. The axis of the roller 21 is pivotally mounted on the roller seat 16, so that the roller 21 can rotate relative to the base 10 and the roller seat 16 when operated. In addition, please refer to Figure 1 As shown, a partial area (here, the upper half area) of the scroll wheel 21 of the scroll wheel module 20 can be exposed from the housing 50 of the scroll wheel input device 1 for user manipulation.

[0064] like Figures 3 to 6 As shown, in this embodiment, the roller base 16 has at least one bearing 161 (here, two bearings 161, but this is not limited to one embodiment). The two bearings 161 are disposed on opposite sides of the roller base 16. The axis of the roller 21 includes a shaft 212, with both ends of the shaft 212 pivotally attached to the two bearings 161, thereby significantly reducing friction generated during the rotation of the roller 21. In some embodiments, the bearings 161 may be ball bearings, needle bearings, or roller bearings, but this is not limited to one embodiment.

[0065] like Figures 3 to 6As shown, multiple first magnetic members 25 are located on one side of the roller 21 and are arranged in a ring shape. The multiple first magnetic members 25 can be directly disposed on the surface of the roller 21 or on other components connected to the roller 21. For example, in this embodiment, the roller 21 has a side surface 211, and the multiple first magnetic members 25 are arranged in a ring shape around the side surface 211. The multiple first magnetic members 25 are spaced apart from each other and do not contact each other. In addition, a local area of each first magnetic member 25 can be embedded in the interior of the roller 21 from the side surface 211 to reduce the overall thickness of the roller module 20. The material of the side surface 211 of the roller 21 can be plastic or other non-magnetic materials.

[0066] like Figures 3 to 6 As shown, the second magnetic member 30 is fixed to the base 10 and is adjacent to one side of the plurality of first magnetic members 25 disposed on the roller 21, and the second magnetic member 30 corresponds to one of the plurality of first magnetic members 25. For example, in this embodiment, the base 10 has a carrier 17, which is located on the base 10, and the second magnetic member 30 is fixed to the carrier 17. However, this is not limiting, and the second magnetic member 30 can also be fixed to the base 10 in other ways. For example, the second magnetic member 30 can be directly fixed to the roller base 16 without the need for a separate carrier 17.

[0067] like Figures 3 to 6 As shown, a spacing S is maintained between the second magnetic member 30 and the corresponding first magnetic member 25, that is, the position of the second magnetic member 30 corresponds to the position of one of the first magnetic members 25, and there is a spacing D between the second magnetic member 30 and the corresponding first magnetic member 25 (as shown in FIG. Figure 5 As shown, for example, the spacing D can be 3 mm, 5 mm, or 7 mm, etc.), so that a spacing S is formed between the second magnetic member 30 and the corresponding first magnetic member 25. In addition, the above-mentioned spacing D can still maintain a magnetic attraction between the second magnetic member 30 and the corresponding first magnetic member 25. For example, one of each first magnetic member 25 and the second magnetic member 30 can be a permanent magnet (such as a neodymium iron boron magnet or an alnico magnet), and the other can be a block made of a magnetically conductive material or a composite material such as iron, cobalt, nickel, or silicon steel, so that a magnetic attraction can be maintained between the second magnetic member 30 and the corresponding first magnetic member 25. Alternatively, both the first magnetic member 25 and the second magnetic member 30 can be permanent magnets and still maintain the above-mentioned magnetic attraction.

[0068] By this, Figure 3 and Figure 6 As shown (where Figure 5 for Figure 3(Cross-sectional view along line segment 5-5), during the rotation of the roller 21 relative to the base 10 and the roller seat 16, when the position of the second magnetic member 30 corresponds to the position of each first magnetic member 25, there is a magnetic attraction between the second magnetic member 30 and the corresponding first magnetic member 25, and the user can feel the tactile sensation of a pause. When the position of the second magnetic member 30 and the position of each first magnetic member 25 are misaligned with each other, there is no magnetic attraction between the second magnetic member 30 and each first magnetic member 25. Therefore, during the rotation of the roller 21, the user can feel the tactile sensation of a paragraph through the change in the magnetic attraction between the multiple first magnetic members 25 and the second magnetic member 30. Compared with the previous method through the mechanism, the embodiment of the present invention can achieve the advantages of avoiding mechanical errors, reducing operating noise, and reducing friction losses.

[0069] like Figures 3 to 6 As shown, the movable member 40 is disposed on the base 10 and can move relative to the base 10 to a first position (eg, Figure 5 Position shown) and the second position (as shown Figure 6 The movable member 40 is positioned between the positions shown in the figure, and the movable member 40 has a third magnetic member 45. The movable member 40 can move linearly or rotationally. For example, in this embodiment, the base 10 has a guide member 12, the guide member 12 has at least one guide rail 121 (here, two guide rails 121 arranged in parallel), and the movable member 40 has at least one slider 401 (here, two sliders 401 arranged in parallel). The movable member 40 is slidably assembled on the guide rail 121 of the guide member 12 via the slider 401, so that the movable member 40 can move linearly relative to the guide member 12 and the base 10.

[0070] like Figure 5 As shown, when the movable member 40 moves to the first position, the third magnetic member 45 moves away from the second magnetic member 30 and the first magnetic member 25, so that the position of the third magnetic member 45 does not correspond to the position of the second magnetic member 30. Therefore, the third magnetic member 45 and the second magnetic member 30 will not produce an attraction or repulsion effect. When the user operates the roller 21 to rotate, the user can feel the segment tactile sensation through the change of the magnetic attraction force between the multiple first magnetic members 25 and the second magnetic members 30.

[0071] like Figure 6 As shown, when the movable member 40 is moved from the first position (as shown in FIG. Figure 5When the third magnetic member 45 is moved to the second position (shown in the figure), the position of the third magnetic member 45 corresponds to the position of the second magnetic member 30, resulting in attraction or repulsion. This attraction or repulsion between the third magnetic member 45 and the second magnetic member 30 can significantly reduce the magnetic attraction between the second magnetic member 30 and the corresponding first magnetic member 25, for example, reducing the magnetic attraction to less than 10% of its original value. Therefore, the user can rotate the scroll wheel 21 without feeling any resistance, enabling faster rotation or more precise operation, which is suitable for certain use cases (such as when scrolling the scroll wheel 21 for a long time or a long distance, or when more subtle scrolling is required).

[0072] For example Figure 6 As shown, when the movable part 40 is in the second position, the third magnetic part 45 of the movable part 40 can be located in the spacing space S between the second magnetic part 30 and the corresponding first magnetic part 25, so that the third magnetic part 45 is blocked between the second magnetic part 30 and the first magnetic part 25. In addition, when the movable part 40 is in the second position, there can be a spacing D1 between the third magnetic part 45 and the second magnetic part 30, and a spacing D2 between the third magnetic part 45 and the first magnetic part 25, and the spacing D1 is smaller than the spacing D2. For example, the spacing D1 can be 0.1mm, 0.3mm or 0.5mm, etc., or the spacing D1 can be 0 to form a contact between the third magnetic part 45 and the second magnetic part 30. Thereby, through the above-mentioned spacing configuration, it can be further ensured that the third magnetic part 45 and the second magnetic part 30 produce an attraction or repulsion effect on each other, so as to reduce the magnetic attraction force between the second magnetic part 30 and the first magnetic part 25. That is to say, the first magnetic part 25 and the second magnetic part 30 are in the second position (such as Figure 6 The magnetic attraction force generated when the movable member 40 is in the first position (as shown) is much smaller than that when the movable member 40 is in the first position (as shown Figure 5 As shown in FIG), the magnetic attraction generated during operation enables the roller 21 to rotate quickly. Figure 5 As shown, when the movable member 40 is moved from the second position (such as Figure 6 When the third magnetic member 45 moves to the first position, the third magnetic member 45 will move away from the spacing space S, so that the second magnetic member 30 and the corresponding first magnetic member 25 restore the original magnetic attraction, so the user can feel the segment tactile sensation when operating the scroll wheel 21 to rotate.

[0073] In some embodiments, when the movable part 40 is in the second position, the third magnetic part 45 may not be located in the spacing space S between the second magnetic part 30 and the corresponding first magnetic part 25. For example, the position of the third magnetic part 45 may be adjacent to or in contact with the side of the second magnetic part 30 away from the first magnetic part 25, and the third magnetic part 45 and the second magnetic part 30 can also achieve the effect of attracting or repelling each other.

[0074] In some embodiments, one of the second magnetic member 30 and the third magnetic member 45 can be a permanent magnet (e.g., a neodymium iron boron magnet or an alnico magnet), and the other can be a block made of a magnetically conductive material such as iron, cobalt, nickel, or silicon steel, or a composite material, so that the second magnetic member 30 and the third magnetic member 45 are attracted to each other. Alternatively, both the second magnetic member 30 and the third magnetic member 45 can be permanent magnets.

[0075] Thus, when the scroll wheel input device 1 is in use, the user can freely select the control feel of the scroll wheel 21 by controlling the movable member 40 to move to the first position or the second position. Figure 1 and Figure 3 As shown, in this embodiment, the housing 50 of the scroll wheel input device 1 has a through hole 51, and the movable member 40 has a control portion 42. The control portion 42 is movably located in the through hole 51, so that the user can control the movement of the movable member 40 through the control portion 42 to switch the operating feel of the scroll wheel 21.

[0076] In addition, the embodiment of the present invention switches the control feel of the scroll wheel 21 by the attraction or repulsion between the second magnetic member 30 and the third magnetic member 45, rather than the assembly and coordination between multiple mechanisms. Therefore, the scroll wheel input device 1 can tolerate larger errors during manufacturing or assembly, thereby improving the quality and yield of the scroll wheel input device 1.

[0077] like Figures 4 to 6 As shown, in this embodiment, the movable member 40 has an extension plate 43, the extension plate 43 has a groove 431, the groove 431 has an opening 432, and when the movable member 40 is in the second position (such as Figure 6 ), the extension plate 43 is located in the space S between the second magnetic member 30 and the corresponding first magnetic member 25, and the opening 432 of the groove 431 faces the second magnetic member 30. The third magnetic member 45 is disposed in the groove 431. Thus, when the movable member 40 is in the second position, the extension plate 43 of the movable member 40 can block the third magnetic member 45 and the first magnetic member 25. The second magnetic member 30 and the third magnetic member 45 are not blocked, making it easier for them to attract or repel each other.

[0078] In some embodiments, at least two of the sizes of the first magnetic member 25, the second magnetic member 30, and the third magnetic member 45 are different, so that the magnetic force of each of the first magnetic member 25, the second magnetic member 30, and the third magnetic member 45 can be adjusted by changing the sizes. Figures 4 to 6As shown, the first magnetic member 25 has a first surface 251 facing the second magnetic member 30, the second magnetic member 30 has a second surface 301 facing the first surface 251, and the third magnetic member 45 has a third surface 451 facing the second magnetic member 30, wherein the area of the second surface 301 may be larger than the area of the first surface 251, and the area of the third surface 451 may be larger than the area of the second surface 301. Alternatively, in some embodiments, if the first surface 251, the second surface 301, and the third surface 451 are all circular, the diameter of the third surface 451 may be larger than the diameter of the second surface 301, and the diameter of the second surface 301 may be larger than the diameter of the first surface 251, so that the area of the second surface 301 is larger than the area of the first surface 251, and the area of the third surface 451 is larger than the area of the second surface 301.

[0079] Alternatively, at least two of the volumes of each first magnetic member 25, the volume of the second magnetic member 30, and the volume of the third magnetic member 45 may differ from each other, so that the magnetic forces of each first magnetic member 25, the second magnetic member 30, and the third magnetic member 45 differ in magnitude. For example, in this embodiment, each of the first magnetic member 25, the second magnetic member 30, and the third magnetic member 45 is a cube, and the volume of the second magnetic member 30 is larger than the volume of the first magnetic member 25, resulting in the magnetic force of the second magnetic member 30 being greater than the magnetic force of the first magnetic member 25. The volume of the first magnetic member 25 is larger than the volume of the third magnetic member 45, resulting in the magnetic force of the first magnetic member 25 being greater than the magnetic force of the third magnetic member 45, but this is not limiting.

[0080] Thus, the embodiments of the present invention can adjust the sizes of the first magnetic member 25, the second magnetic member 30, and the third magnetic member 45 based on actual usage requirements (such as the required torque of the roller 21). For example, the size of the first magnetic member 25 can be larger than the size of the second magnetic member 30, and the size of the second magnetic member 30 can be larger than the size of the third magnetic member 45, so that the magnetic force of the first magnetic member 25 is greater than the magnetic force of the second magnetic member 30, and the magnetic force of the second magnetic member 30 is greater than the magnetic force of the third magnetic member 45. Thus, when the movable member 40 is in the first position, the user can produce different segmented tactile sensations when rotating the roller 21.

[0081] Figure 7 This is a perspective view of a second embodiment of the roller input device of the present invention. Figure 8 This is an exploded perspective view of a second embodiment of the scroll wheel input device of the present invention. Figure 9 FIG2 is a side view of the movable member of the second embodiment of the roller input device of the present invention in the first position. Figure 10 FIG2 is a side view of the movable member of the second embodiment of the roller input device of the present invention in the second position. Figure 11 for Figure 10 Cross-sectional view along line segment 11-11.

[0082] like Figures 7 to 10 As shown, the difference between this embodiment and the first embodiment is at least that the moving method of the movable member 40 is different and the setting position of the plurality of first magnetic members 25 is different. In this embodiment, the base 10 has a pivot member 15, the pivot member 15 has a pivot 151, and the movable member 40A has a pivot portion 41, which is pivotally arranged on the pivot 151 of the pivot member 15, so that the movable member 40A can swing relative to the pivot member 15 and the base 10 to the first position (as shown in FIG. Figure 9 Position shown) or a second position (as shown Figure 10 In addition, in this embodiment, the roller module 20 further includes an extension member 22. The extension member 22 is a circular plate and is smaller than the roller 21. The extension member 22 is connected to the side 211 of the roller 21 and is coaxially arranged with the roller 21. A plurality of first magnetic members 25 are annularly arranged around the extension member 22 rather than directly on the roller 21. Therefore, when the user controls the roller 21 to rotate, the extension member 22 can be driven to rotate synchronously.

[0083] By this, Figure 9 As shown, when the movable member 40A swings to the first position, the third magnetic member 45 can also be away from the second magnetic member 30 and the first magnetic member 25, so that the position of the third magnetic member 45 does not correspond to the position of the second magnetic member 30. Therefore, the third magnetic member 45 and the second magnetic member 30 will not produce an attraction or repulsion effect. When the user operates the roller 21 to rotate, the user can feel the segment tactile sensation through the change of the magnetic attraction between the multiple first magnetic members 25 and the second magnetic members 30. Figure 10 and Figure 11 As shown, when the movable member 40A swings from the first position to the second position, the third magnetic member 45 of the movable member 40A can also correspond to the position of the second magnetic member 30 to generate an attraction or repulsion effect. For example, the third magnetic member 45 and the second magnetic member 30 can contact each other or maintain the aforementioned distance D1 (such as 0.1mm, 0.3mm or 0.5mm, etc.), thereby greatly reducing the magnetic attraction force between the second magnetic member 30 and the corresponding first magnetic member 25, so that the user can feel no resistance when operating the roller 21 to rotate.

[0084] Although the technical contents of the present invention have been disclosed above in the form of preferred embodiments, they are not intended to limit the present invention. Any slight changes and modifications made by any person skilled in the art without departing from the spirit of the present invention should be included in the scope of the present invention. Therefore, the scope of protection of the present invention shall be based on the scope defined by the attached claims.

Claims

1. A scroll wheel input device, characterized in that: include: base; A roller module is rotatably disposed on the base, the roller module comprising a roller and a plurality of first magnetic members, wherein the plurality of first magnetic members are located on one side of the roller and are arranged in a ring shape; a second magnetic member fixed on the base and adjacent to the roller, the second magnetic member corresponding to one of the plurality of first magnetic members, the second magnetic member and the corresponding first magnetic member having a space therebetween and having magnetic attraction; and a movable member disposed on the base and selectively movable relative to the base between a first position and a second position, the movable member having a third magnetic member; When the movable member is in the first position, the third magnetic member does not correspond to the second magnetic member; when the movable member is in the second position, the third magnetic member and the second magnetic member attract or repel each other to reduce the magnetic attraction force.

2. The scroll wheel input device according to claim 1, wherein: When the movable member is at the second position, the third magnetic member is located in the separation space.

3. The scroll wheel input device according to claim 1, wherein: When the movable member is at the second position, the distance between the third magnetic member and the second magnetic member is smaller than the distance between the second magnetic member and the corresponding first magnetic member.

4. The scroll wheel input device according to claim 1, wherein: The base is provided with a guide member, and the movable member is slidably arranged on the guide member.

5. The scroll wheel input device according to claim 1, wherein: The base is provided with a pivotal member, the movable member is provided with a pivotal portion, and the pivotal portion is pivotally arranged on the pivotal member.

6. The scroll wheel input device according to claim 1, wherein: The movable member has an extension plate, the extension plate has a groove, the groove has an opening, when the movable member is in the second position, the opening of the groove faces the second magnetic member, and the third magnetic member is arranged in the groove.

7. The scroll wheel input device according to claim 1, wherein: At least two of the sizes of each of the first magnetic member, the second magnetic member, and the third magnetic member are different.

8. The scroll wheel input device according to claim 1, wherein: At least two of the magnetic forces of each of the first magnetic members, the magnetic forces of the second magnetic members, and the magnetic forces of the third magnetic members are different.

9. The scroll wheel input device according to claim 1, wherein: The roller has a side surface, and the plurality of first magnetic members are annularly arranged on the side surface.

10. The scroll wheel input device according to claim 1, wherein: The roller module has an extension piece, the extension piece is located at one side of the roller and is coaxially arranged with the roller, and the plurality of first magnetic pieces are arranged on the extension piece.

11. The scroll wheel input device according to claim 1, wherein The roller input device further includes a shell, the base, the roller module, the second magnetic member and the movable member are arranged inside the shell, the shell has a through hole, and the movable member has a control part, which is movably located in the through hole.

12. The scroll wheel input device according to claim 1, wherein: The base is provided with a roller seat, the roller seat is provided with a bearing, the roller is provided with a shaft rod, and the shaft rod is pivotally arranged on the bearing.

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