A mouse scroll wheel mechanism

Abstract

The utility model provides a mouse scroll wheel mechanism, include: a scroll wheel pedestal, a scroll wheel body and a fixed seat, the scroll wheel body sets up in the scroll wheel pedestal and is with vertical type rotation, the scroll wheel body centrality has a accommodation space, the scroll wheel body has a plurality of guide grooves that is radially distributed, is equipped with at least one magnetic member in each guide groove, the magnetic member is with close or far from the scroll wheel body center direction in the guide groove moves, the fixed seat is fixed in the scroll wheel pedestal and is located in the accommodation space, the fixed seat is equipped with at least one magnet piece and is with the non -contact way to the guide groove, therefore operator dials the scroll wheel body, with the change of rotational speed rise and fall changes the magnet piece to the magnetic force intensity of the magnetic member, can feel the intermittent gear feeling of strong and weak or the flywheel feeling of no external force constraint.

Description

Technical Field

[0001] This utility model relates to the field of mouse technology, and in particular to a mouse scroll wheel mechanism. Background Technology

[0002] A mouse is used to control the cursor on the screen and perform corresponding operations with the computer. In addition to the basic left and right buttons for input, some mice also have a scroll wheel for auxiliary control. Scrolling the wheel allows for quick web browsing or assists with cursor operation. To increase the precision of the scroll wheel, these mice usually have a mechanical spring inside that creates resistance, producing an intermittent, varying gear-like feel when the wheel rotates; this is called a flicking mode. Additionally, some users who want to browse web pages quickly have a release mechanism inside their mice. When the lock is released, the scroll wheel can be rotated rapidly, such as by a large angle in one go or by more than one full rotation; this is called a flywheel mode.

[0003] Some mice, to facilitate switching between scroll wheel and scroll wheel modes, incorporate internal electronic components and mechanical linkages to drive a mechanical spring away from its original locking position, thus achieving the purpose of switching between different operating modes. Therefore, during operation, the finger must first move to the trigger button, and after pressing it, the finger must return to the scroll wheel to continue using the different operating modes. This method is not very convenient for the user.

[0004] Therefore, some manufacturers have designed a smart mouse that uses an internal electronic control circuit to directly drive a release mechanism when it detects rapid scroll wheel rotation, switching the original gear-like scrolling mode to a flywheel mode. If the scroll wheel speed drops to a set value during this process, the internal electronic control circuit reverts to the original scrolling mode. However, this type of smart mouse still requires an internal electronic control circuit and switching mechanism, resulting in high costs. Furthermore, the brief time required for the electronic control circuit to drive the release mechanism during the switching process can cause the scroll wheel to become sluggish and unresponsive. This invention seeks to solve this problem. Utility Model Content

[0005] The main objective of this invention is to provide a mouse scroll wheel mechanism, specifically one that uses centrifugal force to change the distance between components as the scroll wheel rotates, thereby changing the strength of the magnetic influence and achieving the purpose of switching between a scroll wheel mode and a flywheel mode. This mechanism does not require an additional electrical control circuit and provides a mouse structure that automatically switches between modes by rotating the scroll wheel and has the lowest cost.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] This utility model relates to a mouse scroll wheel mechanism, comprising: a scroll wheel base, a scroll wheel body, and a fixed base. The scroll wheel body is disposed on the scroll wheel base and is capable of rotating vertically relative to the scroll wheel base. The scroll wheel body is partially annular and has a central accommodating space. The scroll wheel body has multiple radially distributed guide grooves, each guide groove containing at least one magnetic conductor. The magnetic conductor moves within the guide groove in a direction close to or away from the center of the scroll wheel body. The fixed base is fixed to the scroll wheel base and located within the accommodating space. The fixed base has at least one magnet, which faces the guide groove in a non-contact manner. A higher rotational speed of the scroll wheel body corresponds to a lower magnetic force exerted by the magnet on the magnetic conductor, and vice versa.

[0008] As one of the preferred embodiments, a plurality of guide grooves are equally spaced on the roller body, and the guide grooves are radially distributed according to the roller body.

[0009] As one of the preferred embodiments, the guide groove has an opening facing the center of the roller body. Although the magnetic component moves within the guide groove, it can still protrude partially through the opening but will not detach from the guide groove.

[0010] As one of the preferred embodiments, the guide groove has a guide groove radial width and a guide groove axial width, the magnetic conductor has a magnetic conductor diameter and a magnetic conductor axial width, the opening has an opening radial width, the guide groove axial width is greater than the magnetic conductor axial width, and the magnetic conductor diameter is smaller than the guide groove radial width but larger than the opening radial width.

[0011] As one of the preferred embodiments, the magnetic conductive element is made of a metal or magnetic material that can be attracted by a magnet, and is cylindrical, strip-shaped, spherical or tubular.

[0012] As one of the preferred embodiments, the fixing base is fixed with a plurality of magnets at intervals and facing the guide groove, and the plurality of magnets are spaced at the same distance from the edge of the guide groove.

[0013] As one of the preferred embodiments, the fixing base is an arc-shaped body that fixes multiple magnets.

[0014] As one of the preferred embodiments, there is also a first included angle between two adjacent guide grooves. The fixing seat is fixed with multiple magnets at equal intervals and facing the guide groove. Two adjacent magnets have a second included angle. The angles of the first included angle and the second included angle are the same.

[0015] In one preferred embodiment, when the magnetic guide moves within the guide groove in a direction close to or away from the center of the roller body, the distance between the magnet and the magnetic guide varies within a first distance range, and the magnetic force between the magnet and the magnetic guide varies within a first magnetic force range. Specifically, when the magnetic guide is located at one end of the guide groove close to the center of the roller body, the distance between the magnet and the magnetic guide is the minimum value within the first distance range, and the magnetic force between the magnet and the magnetic guide is the maximum value within the first magnetic force range. When the magnetic guide is located at one end of the guide groove away from the center of the roller body, the distance between the magnet and the magnetic guide is the maximum value within the first distance range, and the magnetic force between the magnet and the magnetic guide is the minimum value within the first magnetic force range.

[0016] Compared with existing technologies, the mouse scroll wheel mechanism of this invention utilizes the magnet to generate magnetic force on the partially spaced magnetic guides when the scroll wheel body rotates at low speed. This allows the operator to feel intermittent gear-like sensations in the scrolling mode. When the operator wants to switch to flywheel mode, they quickly scroll the scroll wheel body, and centrifugal force causes the magnetic guides to move within the guide groove and away from the magnet. With no magnetic force between them, the scroll wheel body can rotate quickly and enter flywheel mode. This makes mouse operation easier and faster. Compared with conventional mice that require electronic control circuits and release mechanisms, the structure of this invention has lower costs and the product is more competitive in the market. Attached Figure Description

[0017] Figure 1 This is a perspective view of the present utility model;

[0018] Figure 2 This is an exploded view of the present invention;

[0019] Figure 3 This is an exploded view of the roller body of this utility model;

[0020] Figure 4 This is a partial cross-sectional view of the roller body of this utility model along the axial direction;

[0021] Figure 5 This is a partial cross-sectional view of the radial direction of the roller body of this utility model;

[0022] Figure 6 This is a schematic diagram showing the relative positions of the roller body and the fixed base of this utility model;

[0023] Figure 7 This is a schematic diagram of the structure of the present invention during operation in the toggle mode;

[0024] Figure 8 This is a diagram showing the torque change during the process of rotating the roller body of this utility model by 15 degrees.

[0025] Figure 9 This is a schematic diagram of the structure of the flywheel mode of this utility model;

[0026] Figure 10 This is a schematic diagram of the angular velocity and linear velocity of the components in the flywheel mode of this utility model.

[0027] Explanation of reference numerals in the attached figures:

[0028] 10: Roller base;

[0029] 11: Shaft hole;

[0030] 12: Support column;

[0031] 20: Roller body;

[0032] 21: Storage space;

[0033] 211: Upper half of the region;

[0034] 22: Guide groove;

[0035] 221: Opening;

[0036] 23: Magnetic conductive component;

[0037] 24: Raster disk;

[0038] 25: Axis;

[0039] 26: Installation area;

[0040] 30: Fixed base;

[0041] 31: Magnetic components;

[0042] 32: Support component;

[0043] 33: Assembly hole;

[0044] H: Radial depth of the guide groove;

[0045] W: Axial width of the guide groove;

[0046] S: Radial width of the guide groove;

[0047] D: Diameter of the magnetic conductor;

[0048] L: Axial width of the magnetic conductor;

[0049] T: Opening radial width;

[0050] First included angle;

[0051] The second included angle. Detailed Implementation

[0052] The technical solution of this utility model will now be clearly and completely described in conjunction with specific embodiments and accompanying drawings. It should be noted that when a component is referred to as being "mounted to or fixed to" another component, it means that it can be directly on the other component or that an intermediate component may be present. When a component is considered to be "connected to" another component, it means that it can be directly connected to the other component or that an intermediate component may be present simultaneously. In the illustrated embodiments, directions such as up, down, left, right, front, and back are relative and are used to explain the relative structure and movement of different components in this invention. These representations are appropriate when the components are in the positions shown in the figures. However, if the description of the component positions changes, then these representations are also considered to change accordingly.

[0053] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0054] Next, let's explain the terms used in this article: [Gear feel]: This refers to the intermittent tightening and loosening sensation felt by the operator when clicking the mouse wheel. [Flywheel feel]: This refers to the feeling of the mouse wheel rotating rapidly without resistance due to its own inertia when the operator clicks it, giving the operator the sensation of multiple rapid rotations.

[0055] like Figure 1 and Figure 2The diagram shows a perspective view and an exploded view of the mouse scroll wheel mechanism of this utility model. This utility model is a mouse scroll wheel mechanism, comprising: a scroll wheel base 10, a scroll wheel body 20, and a fixing seat 30. The scroll wheel body 20 is disposed on the scroll wheel base 10 and is capable of rotating vertically relative to the scroll wheel base 10. The scroll wheel body 20 has a central accommodating space 21 and a plurality of radially distributed guide grooves 22. Each guide groove 22 contains at least one magnetic element 23, which moves within the guide groove 22 in a direction close to or away from the center of the scroll wheel body 20. The fixing seat 30 is fixed to the scroll wheel base 10 and located within the accommodating space 21. The fixing seat 30 has at least one magnet 31, which faces the guide groove 22 in a non-contact manner. When the magnetic conductor 23 is located within the guide groove 22 closest to the center of the roller body 20, the distance between the magnetic conductor 23 and the magnet 31 is shortest, and the magnetic force is strongest. Conversely, when the magnetic conductor 23 is located within the guide groove 22 furthest from the center of the roller body 20, the distance between the magnetic conductor 23 and the magnet 31 is greatest, and the magnetic force is zero, indicating a deactivated state. Therefore, by rotating the roller body 20, the centrifugal force is used to adjust the distance between the magnetic conductor 23 and the magnet 31. The distance between 1 and 2 corresponds to the following: a higher rotation speed of the roller body 20 corresponds to a lower magnetic force of the magnet 31 on the magnetic conductor 23, and vice versa. Therefore, by changing the strength of the magnetic force of the magnet 31 on a portion of the magnetic conductor 23, the operator can easily switch between the toggle mode and the flywheel mode. In the toggle mode, the operator can feel a gear-like sensation with varying strengths and weaknesses, while in the flywheel mode, the operator can feel the sensation of one or more rotations of the flywheel.

[0056] Next, a detailed explanation of the structure of each component will be given:

[0057] like Figure 2As shown, the scroll wheel base 10 supports the scroll wheel body 20 and the mounting base 30. The scroll wheel body 20 is pivotally connected to the scroll wheel base 10, allowing it to rotate freely in an upright position. The mounting base 30 secures the scroll wheel base 10 and is located within the accommodating space 21. Its purpose is to ensure that the side with the magnet 31 faces the guide groove 22. The magnet 31 can be placed at any angle on the mounting base 30. Due to the magnetic force, the magnetic guide 23 near the magnet 31 will stop at the opening 221 of the guide groove 22. The scroll wheel base 10 must be able to fit into the internal support structure of the mouse; therefore, the scroll wheel base 10 can be adjusted to various different forms to fit the corresponding support structure, and is not limited to the shape shown in the figure. In this embodiment, the roller base 10 is shaped like a rectangular frame and has multiple horizontally penetrating shaft holes 11. Bearings can be installed at the shaft holes 11 so that the roller body 20 can be pivotally connected thereto. A plurality of protruding support columns 12 are also provided on one side wall of the roller base 10, and the support columns 12 are used for mounting the fixing seat 30 thereto.

[0058] like Figure 2 and Figure 3 As shown, the scroll wheel body 20 is partially annular and has an open accommodating space 21 in the center. In this embodiment, the area above the center of the scroll wheel body 20 within the accommodating space 21 is defined as the upper half region 211. The scroll wheel body 20 has a plurality of radially distributed guide grooves 22. In this embodiment, a grating disk 24 is also attached to one side of the scroll wheel body 20. The grating disk 24 has a plurality of holes, which is a common structure for mice. Together with other electronic control components, it is used to accurately calculate the rotation angle of the scroll wheel body 20 for mouse control. In this embodiment, a shaft 25 is provided at the center of the grating disk 24. The shaft 25 also serves as the central axis of the scroll wheel body 20. During assembly, the scroll wheel body 20 is first placed in the rectangular frame of the scroll wheel base 10. The shaft 25 passes through the shaft hole 11, allowing the scroll wheel body 20 to rotate freely in an upright position at the scroll wheel base 10.

[0059] Multiple guide grooves 22 are equally spaced on the roller body 20. To facilitate the installation of the magnetic guide 23 within the guide grooves 22, in this embodiment, as follows: Figure 2 As shown, the roller body 20 closes the guide groove 22 on one axial side, as... Figure 3The other side shown is an unclosed mounting area 26. The magnetic component 23 is placed into the guide groove 22 through this mounting area 26. During assembly, the grating disk 24 is also glued and fixed to the mounting area 26, so that the guide groove 22 is closed on both sides of the roller body 20 axially. The magnetic component 23 is made of metal or magnetic material that can be attracted by a magnet, and its shape can be cylindrical, strip-shaped, spherical, or hollow tubular. In this embodiment, the roller body 20 is made of non-magnetic material, so there is a non-magnetic material separating two adjacent magnetic components 23.

[0060] In order for the magnetic conductor 23 to move within the guide groove 22, such as Figure 4 and Figure 5 As shown, the guide groove 22 extends radially along the roller body 20. The guide groove 22 has a radial depth H, a radial width S, and an axial width W. The magnetic conductor 23 has a diameter D and an axial width L. The axial width W of the guide groove is greater than the axial width L. The guide groove 22 has an opening 221 facing the center of the roller body 20. The opening 221 has a radial width T. The diameter D of the magnetic conductor is smaller than the radial width S of the guide groove but larger than the radial width T of the opening. This allows the magnetic conductor 23 to move radially within the guide groove 22, and even partially protrude through the opening 221, without detaching from the guide groove 22. Furthermore, multiple guide grooves 22 are equally spaced on the roller body 20, so the centerlines of adjacent guide grooves 22 form a first included angle.

[0061] like Figure 2 and Figure 6 The fixing seat 30 is mainly used to fix multiple magnets 31 facing the guide groove 22, so as to generate magnetic force on the magnetic conductor 23 in the guide groove 22. Therefore, in this embodiment, the fixing seat 30 is arc-shaped, so that the distance between the multiple magnets 31 and the corresponding edge of the guide groove 22 is the same. In addition, the center lines of two adjacent magnets 31 have a second included angle. In this embodiment, the first included angle is equal to the second included angle. In this embodiment, both the first included angle and the second included angle are 15 degrees, but not limited to this. In order to facilitate the fixing seat 30 to be combined with the roller base 10, in this embodiment, the fixing seat 30 is connected to a support member 32. The support member 32 has multiple assembly holes 33. During assembly, the support post 12 is inserted into the assembly hole 33 and locked with adhesive or screws, so that the fixing seat 30 can be fixed to the roller base 10 and located in the upper half region 211 of the accommodating space 21 (e.g., Figure 1 (As shown).

[0062] Next, the actual operating state of this utility model will be described. For ease of explanation, Figure 7 and Figure 9 The main drawing shows the relative positions of the magnetic conductor 23 and the magnet 31 during operation:

[0063] When the magnetic guide element 23 moves within the guide groove 22 in a direction close to or away from the center of the roller body 20, the distance between the magnet 31 and the magnetic guide element 23 varies within a first distance range, and the magnetic force between the magnet 31 and the magnetic guide element 23 varies within a first magnetic force range. Specifically, when the magnetic guide element 23 is located at one end of the guide groove 22 close to the center of the roller body 20, the distance between the magnet 31 and the magnetic guide element 23 is the minimum value within the first distance range, and the magnetic force between the magnet 31 and the magnetic guide element 23 is the maximum value within the first magnetic force range. When the magnetic guide element 23 is located at one end of the guide groove 22 away from the center of the roller body 20, the distance between the magnet 31 and the magnetic guide element 23 is the maximum value within the first distance range, and the magnetic force between the magnet 31 and the magnetic guide element 23 is the minimum value within the first magnetic force range. The specific operating states are as follows:

[0064] Figure 7 The diagram illustrates the toggle mode. The magnet 31 can be placed at any angle on the fixed base 30. Due to the magnetic force, the magnetically conductive elements 23 near the magnet 31 will stop at the opening 221 of the guide groove 22. In this embodiment, if the magnet 31 is placed directly above the fixed base 30, each cylindrical magnetically conductive element 23 will be arranged in a first distribution shape within the roller body 20. In this first distribution shape, the multiple magnetically conductive elements 23, due to the magnetic force, will be positioned at the opening 221. At this time, the magnet 31 and the cylindrical magnetically conductive elements 23 are very close and have a strong magnetic force interaction. When the roller body 20 rotates, the magnetically conductive elements 23 near the magnet 31 and spaced apart are affected by the magnetic force of the magnet 31, generating periodic magnetic restoring forces (such as...). Figure 8 As shown in the figure, this periodic magnetic restoring force will form a periodic resisting torque, which will make the operator feel a gear-like sensation with distinct intervals of strength when rotating the roller body 20.

[0065] Figure 9The diagram illustrates the flywheel mode. When the roller body 20 rotates at high speed, the multiple cylindrical magnetic conductors 23 are primarily subjected to centrifugal force. Since each magnetic conductor 23 moves freely radially within the guide groove 22, as the rotational speed increases, the multiple magnetic conductors 23 eventually arrange themselves into a second distribution shape within the roller body 20. In this second distribution shape, due to centrifugal force, all the cylindrical magnetic conductors 23 on the roller body 20 are positioned at the outermost position within the guide groove 22, furthest from the center of the roller body 20. At this point, the distance between the magnet 31 and the magnetic conductors 23 is very large, and there is no magnetic force between them. Because no resisting torque occurs, the roller body 20 can therefore rotate rapidly, entering flywheel mode. The critical rotational speed at which the multiple magnetic conductors 23 form the second distribution shape can be calculated using the following formula. Therefore, the operator only needs to ensure that the rotational speed of the roller body 20 exceeds the critical speed to activate the flywheel function.

[0066] Please refer to the reference. Figure 10 and the following formulas:

[0067] ;

[0068] ;

[0069] ;

[0070] ;

[0071] ;

[0072] in Linear velocity. : The distance from the center point of the roller body to the center point of the magnetic conductor. Angular velocity. Critical linear velocity. Critical angular velocity. : Weight of the magnetic conductive component. :gravity. Critical speed.

[0073] In summary, the mouse scroll wheel mechanism of this invention uses the rotational speed of the scroll wheel body 20 to switch operating modes. The scroll wheel body can correspond to the scrolling mode and flywheel mode at different rotational speeds. For example, when the speed is slow, the distance between the magnet 31 and part of the magnetic conductor 23 is the shortest, and the magnetic force between them is strongest, allowing the operator to feel a clear gear-like sensation when scrolling the scroll wheel body 20. When the speed exceeds a critical speed, the distance between the magnetic conductor 23 and the magnet 31 after centrifugal force movement is very large, and there is no magnetic force between them. The scroll wheel body 20 can then quickly rotate to achieve flywheel mode, and the process is very smooth, without the brief pause that always occurs when switching using conventional electronic control mechanisms. This invention makes mouse operation more convenient and faster for users. Furthermore, because this invention does not require additional electronic control circuits and linkage mechanisms, the overall manufacturing cost can be reduced, making the product more competitive in the market.

[0074] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the scope of the embodiments of the present utility model. All equivalent variations and modifications made within the scope of the claims of the present utility model are covered by the patent scope of the present utility model.

Claims

1. A mouse scroll wheel mechanism, characterized in that, include: The system comprises a roller base, a roller body, and a fixed base. The roller body is disposed on the roller base and is capable of rotating vertically relative to the roller base. The roller body is partially annular and has a central accommodating space. The roller body has multiple radially distributed guide grooves, each guide groove containing at least one magnetic conductor. The magnetic conductor moves within the guide groove in a direction approaching or away from the center of the roller body. The fixed base is fixed to the roller base and located within the accommodating space. The fixed base has at least one magnet facing the guide groove in a non-contact manner. A higher rotational speed of the roller body corresponds to a lower magnetic force exerted by the magnet on the magnetic conductor, and vice versa.

2. The mouse scroll wheel mechanism according to claim 1, characterized in that, The guide grooves are arranged at equal intervals on the roller body, and the guide grooves are distributed radially along the roller body.

3. The mouse scroll wheel mechanism according to claim 1, characterized in that, The guide groove has an opening facing the center of the roller body. Although the magnetic component moves within the guide groove, it can still protrude partially through the opening but will not detach from the guide groove.

4. The mouse scroll wheel mechanism according to claim 3, characterized in that, The guide groove has a radial width and an axial width, the magnetic conductor has a diameter and an axial width, the opening has a radial width, the axial width of the guide groove is greater than the axial width of the magnetic conductor, and the diameter of the magnetic conductor is smaller than the radial width of the guide groove but larger than the radial width of the opening.

5. The mouse scroll wheel mechanism according to claim 1, characterized in that, The magnetic conductive element is made of a metal or magnetically conductive material that can be attracted by a magnet, and the magnetic conductive element is cylindrical, strip-shaped, spherical, or tubular.

6. The mouse scroll wheel mechanism according to claim 1, characterized in that, The mounting base has multiple magnets fixed at intervals and facing the guide groove, and the multiple magnets are spaced at the same distance from the edge of the guide groove.

7. The mouse scroll wheel mechanism according to claim 6, characterized in that, The fixed base is arc-shaped and has multiple magnets fixed at equal intervals.

8. The mouse scroll wheel mechanism according to claim 1, characterized in that, There is also a first included angle between two adjacent guide slots. The fixing base is fixed with multiple magnets at equal intervals and facing the guide slots. Two adjacent magnets have a second included angle. The first included angle and the second included angle are the same.

9. The mouse scroll wheel mechanism according to claim 1, characterized in that, When the magnetic guide moves within the guide groove in a direction approaching or moving away from the center of the roller body, the distance between the magnet and the magnetic guide varies within a first distance range, and the magnetic force between the magnet and the magnetic guide varies within a first magnetic force range. Specifically, when the magnetic guide is located at one end of the guide groove closer to the center of the roller body, the distance between the magnet and the magnetic guide is the minimum value within the first distance range, and the magnetic force between the magnet and the magnetic guide is the maximum value within the first magnetic force range. When the magnetic guide is located at one end of the guide groove away from the center of the roller body, the distance between the magnet and the magnetic guide is the maximum value within the first distance range, and the magnetic force between the magnet and the magnetic guide is the minimum value within the first magnetic force range.

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