Magnetic damping mouse wheel

Abstract

The utility model discloses a magnetic damping mouse wheel which comprises a bottom plate. The roller bracket is arranged on the bottom plate; the roller assembly is movably mounted on the roller bracket; the roller assembly comprises a roller and permanent magnets, a plurality of mounting grooves are formed in the circumferential surface of the roller, each permanent magnet is arranged in the corresponding mounting groove, and the outward surfaces of the permanent magnets have the same polarity; the opposite-attraction magnet is arranged on the bottom plate and located under the roller assembly, and the opposite polarity of the opposite-attraction magnet is opposite to that of the permanent magnet; a Hall sensor is further arranged on the bottom plate and located on the side opposite to the opposite attraction magnet. When the roller assembly rotates, magnetic damping force is generated by the magnetic attraction force between the permanent magnet and the attraction magnet, the magnetic damping force forms damping force for rotation of the roller assembly, a user feels the damping effect through changes of the magnetic attraction force between the permanent magnet and the attraction magnet in the using process, and the user experience is good; and meanwhile, the rotating angle of the roller can be accurately sensed through the Hall sensor, and actual use is facilitated.

Description

Technical Field

[0001] This utility model relates to a mouse scroll wheel, and more particularly to a magnetically damped mouse scroll wheel. Background Technology

[0002] A mouse is a common input device for computer operation. It is used to position the cursor on the screen and to scroll through documents or web pages to the desired location by rapidly rotating the scroll wheel. Modern mice are typically optical mice. When the mouse wheel is scrolled, the metal shaft of the wheel drives the rotor of an encoder to rotate synchronously with the wheel, converting the rotational displacement into a digital signal to control the scrolling of the computer page.

[0003] The encoder rotor has 24 pole impellers evenly distributed along the circumference on one side of the circular surface. The positioning boss of the encoder's elastic positioning plate contacts the impeller. When the encoder rotor rotates, the positioning boss of the elastic plate sweeps between the crest and trough contour lines of the impeller. When sweeping from the crest to the trough, mechanical resistance is generated. The user can feel the change in the magnitude of the rotational resistance and perceive the rotation angle of the roller.

[0004] However, in actual use, it was found that the scrolling resistance mechanism of the mouse encoder is a mechanical contact type, which is not smooth to use, has weak tactile feedback, and wears down after long-term use, reducing resistance and tactile feedback. Users cannot easily perceive the rotation of the scroll wheel, resulting in a poor user experience in the long run. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of the prior art by providing a magnetically damped mouse wheel that can effectively prevent the resistance from weakening or even disappearing, allowing users to feel the change in resistance to sense the rotation angle of the wheel, resulting in a better user experience.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is: a magnetically damped mouse wheel, comprising:

[0007] Base plate;

[0008] The roller bracket is mounted on the base plate;

[0009] A roller assembly is movably mounted on the roller bracket; wherein the roller assembly includes a roller and a permanent magnet, the circumferential surface of the roller has multiple mounting slots, each mounting slot is provided with a permanent magnet, and the outer side of the permanent magnet has the same polarity;

[0010] A pair of magnets is disposed on the base plate and located directly below the roller assembly, the pair of magnets having opposite polarities to the permanent magnet;

[0011] When the roller assembly rotates, the magnetic attraction between the permanent magnet and the opposing magnet generates a magnetic damping force, which in turn dampens the rotation of the roller assembly.

[0012] Furthermore, a Hall sensor is also provided on the base plate and is located on the opposite side of the magnets. The detection center of the Hall sensor is located on the center circumference of the roller assembly and is used to sense the rotation angle of the roller assembly.

[0013] Furthermore, the number of permanent magnets is twenty-four, and the twenty-four permanent magnets are evenly distributed on the circumferential surface of the roller, and the magnetic angle between any two permanent magnets is the same.

[0014] Furthermore, a leather sleeve is also fitted around the outer circumference of the roller.

[0015] Furthermore, the roller has a bushing at its center; a metal shaft is installed inside the bushing, and the roller is fixed to the two roller supports by the bushing and the metal shaft.

[0016] Due to the application of the above technical solution, this utility model has the following advantages compared with the prior art:

[0017] This invention relates to a magnetically damped mouse scroll wheel. Multiple permanent magnets of the same polarity are arranged around the circumference of the scroll wheel, and opposite magnets with opposite polarity are arranged below the permanent magnets. When the scroll wheel assembly rotates, the magnetic attraction force generated between the permanent magnets and the opposite magnets varies between the maximum peak and the minimum trough, providing a damping effect. Users can feel the scroll wheel rolling, resulting in a better user experience.

[0018] Secondly, a Hall sensor is installed below the rotating roller. The detection center of the Hall sensor is located on the center circumference of the roller assembly. When the roller rotates, the Hall sensor outputs a change based on the detected magnetic induction intensity, thereby sensing the rotation angle of the roller, which is convenient for actual operation. Attached Figure Description

[0019] The technical solution of this utility model will be further described below with reference to the accompanying drawings:

[0020] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0021] Figure 2 This is a three-dimensional structural diagram of an embodiment of the present utility model;

[0022] The components are: 1. Base plate; 2. Roller bracket; 3. Roller assembly; 4. Adhesive magnet; 5. Hall sensor; 6. Leather sleeve; 7. Bushing; 8. Metal shaft; 30. Roller; 31. Permanent magnet; 32. Mounting slot. Detailed Implementation

[0023] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0024] This invention provides a magnetically damped mouse wheel to solve the problem that mechanical contact mice in the prior art suffer from wear and tear after long-term use, resulting in reduced resistance, decreased tactile feedback, and difficulty for users to perceive the scroll wheel's rotation, thus leading to a poor user experience.

[0025] For ease of understanding, the specific processes in the embodiments of this application are described below. Please refer to [link / reference]. Figures 1 to 2 A magnetically damped mouse scroll wheel according to an embodiment of this application includes a base plate 1, a scroll wheel bracket 2, a scroll wheel assembly 3, and a pair of magnets 4. The scroll wheel bracket 2 is disposed on the base plate 1. The scroll wheel assembly 3 is movably mounted on the scroll wheel bracket 2. The scroll wheel assembly 3 includes a scroll wheel 30 and a permanent magnet 31. The circumferential surface of the scroll wheel 30 has a plurality of mounting grooves 32, and each mounting groove 32 is provided with a permanent magnet 31, and the outer side of the permanent magnet 31 has the same polarity. The pair of magnets 4 is disposed on the base plate 1 and located directly below the scroll wheel assembly 3. The polarity of the pair of magnets 4 is opposite to the relative polarity of the permanent magnet 31.

[0026] In this invention, a magnetically damped mouse scroll wheel is designed so that when the scroll wheel 30 rotates, the permanent magnet 31 rotates synchronously with the scroll wheel 30. During the rotation of the permanent magnet 31, the magnetic attraction between the permanent magnet 31 and the opposing magnet 4 forms a magnetic damping force. This magnetic damping force creates a damping force on the rotation of the scroll wheel assembly 3, allowing the user to perceive the rotation state of the scroll wheel and providing a better user experience.

[0027] Furthermore, based on Figure 2 The number of permanent magnets 31 is twenty-four. The twenty-four permanent magnets 31 are evenly distributed on the circumferential surface of the roller 30. The magnetization direction of the twenty-four permanent magnets 31 is radially along the radius of the roller 30. The polarity of the outward-facing side is the same, which is either N polarity or S polarity.

[0028] Specifically, twenty-four permanent magnets 31 are arranged at equal angles on the circumference of the roller 30. The angle between the center of two adjacent permanent magnets 31 and the radius of the line connecting the center of the roller 30 and the center of the roller 30 is the magnetic angle. When the roller assembly 3 rotates, each permanent magnet on the roller 30 and the opposing magnet 4 on the base plate 1 will sequentially approach, face, and move away. During this movement, the magnetic attraction between the permanent magnet 31 and the opposing magnet 4 generates a magnetic damping force. This magnetic damping force will cause the rotational kinetic energy of the roller assembly 3 to decrease, thus creating resistance to the rotation of the roller assembly 3. The peak value of the magnetic damping force is generated when the permanent magnet 31 and the opposing magnet 4 face each other. The trough value of the magnetic damping force occurs when the gap between two connected permanent magnets 31 rotates to the position facing the opposing magnet 4. Every time the roller 30 rotates by a magnetic angle, the magnetic damping force will change from the peak value to the trough value and back to the peak value, so that the user can clearly feel the rolling state of the roller.

[0029] Furthermore, a leather sleeve 6 is also fitted on the outer circumference of the roller 30. When the leather sleeve 6 is fitted on the outer circumference of the roller 30, it serves to protect the permanent magnet 30 and the user's fingers and increase the friction of the fingers, thereby further enhancing the user experience.

[0030] Furthermore, the roller 30 has a bushing 7 at its center, and a metal shaft 8 is installed inside the bushing 7. The roller 30 is fixed to two roller brackets 2 by the bushing 7 and the metal shaft 8. The above installation method makes it easy to assemble and disassemble and convenient to use.

[0031] As a further preferred embodiment of this application, the base plate 1 is also provided with a Hall sensor 5, and the Hall sensor 5 is disposed on the opposite side of the magnet 4; the detection center of the Hall sensor 5 is located on the center circumference of the circumferential surface of the roller assembly 3, and is used to sense the rotation angle of the roller assembly 3.

[0032] Specifically, when the scroll wheel assembly 3 rotates, the permanent magnet 30 rotates to the position directly opposite the Hall sensor. At this time, the permanent magnet 30 is closest to the Hall sensor 5, and the magnetic induction intensity sensed by the Hall sensor 5 is at its maximum, exceeding its operating point, so the output is turned on and the output changes from high to low. When the scroll wheel assembly 3 rotates to the position between the two permanent magnets 30 and directly opposite the Hall sensor 5, the magnetic induction intensity weakens and falls below the release point, so the output is turned off and the output changes from low to high. When the next permanent magnet 30 rotates to be directly opposite the Hall sensor 5, its output level changes from low to high again. In this way, the scroll wheel 30 is sensed to have rotated a magnetic angle, which facilitates the mouse to perform the corresponding application.

[0033] In summary, the magnetically damped mouse wheel of this invention provides a superior user experience by constantly changing the magnetic attraction between the permanent magnet and the opposing magnet during scrolling. This change allows the user to perceive a damping effect. Furthermore, the Hall sensor accurately detects the rotation angle of the wheel, facilitating practical applications.

[0034] The above-described embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A magnetically damped mouse wheel, characterized in that, include: Base plate (1); Roller bracket (2) is mounted on the base plate (1); A roller assembly (3) is movably mounted on the roller bracket (2); wherein the roller assembly (3) includes a roller (30) and a permanent magnet (31), the roller (30) has a plurality of mounting slots (32) on its circumferential surface, each mounting slot (32) is provided with a permanent magnet (31), and the external sides of the plurality of permanent magnets (31) are of the same polarity; The opposing magnet (4) is disposed on the base plate (1) and located directly below the roller assembly (3), and the opposing magnet (4) has opposite polarity to the permanent magnet (31); When the roller assembly (3) rotates, the magnetic attraction between the permanent magnet (31) and the opposing magnet (4) generates a magnetic damping force, which forms a damping force on the rotation of the roller assembly (3).

2. The magnetically damped mouse wheel as described in claim 1, characterized in that: A Hall sensor (5) is also provided on the base plate (1) and is located on the opposite side of the magnet (4); wherein the detection center of the Hall sensor (5) is located on the center circumference of the roller assembly (3) and is used to sense the rotation angle of the roller assembly (3).

3. The magnetically damped mouse wheel as described in claim 1, characterized in that: The number of permanent magnets (31) is twenty-four. The twenty-four permanent magnets (31) are evenly distributed on the circumference of the roller (30), and the magnetic angle between any two permanent magnets (31) is the same.

4. The magnetically damped mouse wheel as described in claim 1, characterized in that: The outer circumference of the roller (30) is also fitted with a leather sleeve (6).

5. The magnetically damped mouse wheel as described in claim 1, characterized in that: The roller (30) has a bushing (7) at its center; a metal shaft (8) is installed inside the bushing (7); the roller (30) is fixed to the two roller supports (2) by the bushing (7) and the metal shaft (8).

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