Rolling wheel encoder and mouse with adjustable rolling feel

Abstract

The utility model discloses a kind of rolling wheel encoder of adjustable rolling hand feeling, positioning signal component includes positioning magnetic block and magnetic field sensor;Transmission mechanism includes a transmission plate, transmission plate is equipped with a obliquely extended guide groove;Magnetic frame body extends a connecting arm, the end of this connecting arm is equipped with the boss cooperation with guide groove;Driving assembly drives transmission plate movement, through the cooperation of guide groove and boss, the movement of transmission plate is converted into the axial sliding of magnetic frame body;The position change of positioning magnetic block relative to magnetic field sensor makes the magnetic field that magnetic field sensor receives change, and then output position signal.The positioning signal component structure of through magnetic field induction is more compact, without reserving specific space for optical path, so that overall structure design is more flexible, it is helpful to the miniaturization, thin type development of encoder even mouse product.User can set required damping hand feeling flexibly according to personal preference or different scene demand, greatly improve user experience.

Description

Technical Field

[0001] This utility model relates to the field of mouse scroll wheels, specifically to a scroll wheel encoder with adjustable scrolling feel. Background Technology

[0002] Existing roller feel adjustment solutions are mainly divided into two categories: contact and non-contact.

[0003] Contact-based solutions typically rely on the physical contact of mechanical components such as springs, pawls, and ratchet wheels to create damping and a tactile feedback. Their disadvantages include the tendency for these mechanical components to wear out over time, leading to changes in feel, noise, and even malfunction, resulting in poor durability.

[0004] Non-contact solutions, such as magnetic rollers, generate tactile feedback through magnetic field interaction, avoiding mechanical wear. However, the strength of the magnetic force (i.e., the intensity of the tactile feedback) in most existing magnetic rollers is fixed at the factory, preventing users from adjusting it according to personal preference or different usage scenarios (such as browsing the web and detailed drawing), thus lacking flexibility. Furthermore, some high-end adjustable rollers use optical sensors (such as photodiodes combined with light shields) to detect the position of the adjustment mechanism. This optical positioning method is sensitive to dust and oil, and its reliability may decrease with long-term use. Additionally, the structural layout requires reserved space for the optical path, increasing design complexity.

[0005] Therefore, it is necessary to provide a roller encoder that has both stepless adjustment capability for feel and adopts a more reliable and compact positioning feedback mechanism. Utility Model Content

[0006] To address the aforementioned problems, this invention aims to provide a roller encoder with adjustable rolling feel. This encoder employs a non-contact magnetic adjustment method and innovatively utilizes magnetic field induction for position positioning, thereby achieving flexible, reliable, and precise adjustment of the rolling feel.

[0007] To achieve this technical objective, the present invention provides a roller encoder with adjustable rolling feel, comprising a base, a roller, a magnetic frame, a drive assembly, a transmission mechanism, and a positioning signal assembly. The roller is rotatably mounted on the base and has a hollow annular cavity, the inner wall of which is provided with a magnetically conductive or magnetic structure. The magnetic frame is slidably mounted on the base, its sliding direction being parallel to the axial direction of the roller. The magnetic frame is provided with a magnetic action part for applying magnetic force to the roller. The drive assembly drives the magnetic frame to slide, thereby changing the magnetic action part relative to the roller. The relative distance between the rollers; the positioning signal component includes a positioning magnetic block and a magnetic field sensor; the transmission mechanism includes a transmission plate with an obliquely extending guide groove; the magnetic frame extends a connecting arm with a protrusion at its end that mates with the guide groove; the driving component drives the transmission plate to move, and through the engagement of the guide groove and the protrusion, converts the movement of the transmission plate into the axial sliding of the magnetic frame; the magnetic field sensor is fixed to the base, and the change in position of the positioning magnetic block relative to the magnetic field sensor causes a change in the magnetic field received by the magnetic field sensor, thereby outputting a position signal.

[0008] Preferably, the lower part of the transmission plate is provided with a transmission rack, and the drive assembly includes a motor and a gear set connected to the output shaft of the motor, the gear set meshing with the transmission rack.

[0009] Preferably, the transmission plate is connected to a mounting base, and the positioning magnetic block is installed in the mounting base.

[0010] Preferably, the mounting base is integrally formed with or fixedly connected to the transmission plate.

[0011] Preferably, the magnetic field sensor is a Hall sensor or a tunnel magnetoresistive sensor.

[0012] Preferably, the magnetic or conductive structure provided on the inner wall of the roller cavity is a ring structure, and the inner wall of the ring structure is provided with a number of grooves at intervals.

[0013] Preferably, the system also includes a sliding seat, which is fixedly mounted on the base, and the magnetic frame is slidably mounted on the sliding seat. The sliding trajectory of the magnetic frame on the sliding seat is along the axial direction of the roller.

[0014] This utility model also discloses a mouse, including a scroll wheel encoder with adjustable scroll feel as described in any of the preceding claims.

[0015] The beneficial effects of this invention are as follows: By applying a variable magnetic force to the scroll wheel through an adjustment component in a non-contact manner, the scrolling feel can be adjusted. The positioning signal component, which uses magnetic field sensing, has a more compact structure and does not require specific space for the optical path, making the overall structural design more flexible and contributing to the miniaturization and thinning of encoders and even mouse products. Users can flexibly set the desired damping feel through the drive component according to personal preferences or different scenario needs, greatly improving the user experience. Attached Figure Description

[0016] Figure 1 This is an exploded view of the present invention;

[0017] Figure 2 The state of the transmission mechanism of this utility model Figure 1 ;

[0018] Figure 3 The state of the transmission mechanism of this utility model Figure 2 ;

[0019] Figure 4 The state of the transmission mechanism of this utility model Figure 3 .

[0020] In the diagram: 1-base; 2-roller; 21-cavity; 22-magnetic ring; 3-magnetic frame; 31-magnetic block; 32-connecting arm; 33-protruding column; 4-transmission mechanism; 41-transmission plate; 411-guide groove; 412-transmission rack; 42-mounting seat; 421-positioning magnetic block; 5-drive assembly; 51-motor; 52-gear set; 6-Hall sensor; 7-circuit board. Detailed Implementation

[0021] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. To provide a clear and complete description of the technical solution, the following embodiments are selected for illustration; these embodiments are only some embodiments of the present invention; other embodiments obtained based on this application without creative effort are all within the scope of protection of the present invention.

[0022] In the following embodiments, it should be noted that the terms "upper," "lower," "left," "right," "inner," "outer," "top / bottom," etc., are all based on the orientation or positional relationship shown in the accompanying drawings and are only for the purpose of clearly describing this embodiment. They do not indicate or imply that the device or element referred to must have a specific orientation, and therefore should not be construed as a limitation of this application. At the same time, the terms "first" and "second" in the embodiments are only used for descriptive purposes and do not represent an indication or implication of relative importance.

[0023] like Figure 1-4As shown, a specific embodiment of this utility model is a roller encoder with adjustable rolling feel. It includes a base 1, a roller 2, a magnetic frame 3, a transmission mechanism 4, a drive assembly 5, and a positioning signal assembly 6.

[0024] The roller 2 is rotatably mounted on the base 1 via a pivot. The roller 2 has a hollow annular cavity 21 inside. A magnetic ring 22 is fixedly embedded in the inner wall of this cavity 21. The magnetic ring 22 is preferably a ring made of ferromagnetic material, and its inner ring wall has multiple evenly spaced arc-shaped grooves. In other embodiments, the magnetic ring 22 can also be replaced with a permanent magnet ring with similar grooves.

[0025] It also includes a sliding seat, which is fixedly mounted on the base. The magnetic frame 3 is slidably mounted on the sliding seat, and the sliding trajectory of the magnetic frame 3 on the sliding seat is in the axial direction of the roller. A row of magnetic blocks 31 serving as magnetic action parts are mounted on the magnetic frame 3. A connecting arm 32 extends from one side of the magnetic frame 3, and a cylindrical protrusion 33 is provided at the end of the connecting arm 32.

[0026] The transmission mechanism 4 includes a long, narrow transmission plate 41. A straight, obliquely extending guide groove 411 is formed in the upper middle part of the transmission plate 41. The protrusion 33 at the end of the connecting arm 32 of the magnetic frame 3 fits precisely into the guide groove 411 and can slide within it. A transmission rack 412 is integrally formed on the lower part of the transmission plate 41. A mounting base 42 is connected (e.g., integrally formed) to the top of the transmission plate 41. The mounting base 42 has a cavity inside for fixing and positioning the positioning magnet 421.

[0027] The drive assembly 5 includes a motor 51 and a gear set 52 consisting of multiple gears. The motor 51 is fixed to the base 1, and its output shaft eventually meshes with the transmission rack 412 at the lower part of the transmission plate 41 through the gear set 52.

[0028] The positioning signal component 6 includes a Hall sensor 6, which functions as a magnetic field sensor. It is fixedly mounted on the circuit board 7, positioned directly opposite the movement trajectory of the positioning magnetic block 421 within the mounting base 42. The Hall sensor 6 detects changes in magnetic field strength generated as the positioning magnetic block 421 moves. The magnetic field sensor can also be other magnetic sensing elements such as a TMR sensor. Changes in the position of the positioning magnetic block relative to the magnetic field sensor cause changes in the magnetic field experienced by the sensor, thereby outputting a position signal.

[0029] The specific working principle of this application is as follows:

[0030] When the user needs to adjust the scrolling feel via software or physical buttons, the control circuit sends a command to the motor 51. The motor 51 rotates, driving the transmission rack 412 through the gear set 52, thereby causing the entire transmission plate 41 to move horizontally in a straight line along its length. As the transmission plate 41 moves, the inclined guide groove 411 on it pushes the protrusion 33 embedded therein. Since the protrusion 33 is fixed to the magnetic frame 3, and the magnetic frame 3 is restricted to axial sliding, the horizontal linear motion of the transmission plate 41 is converted by the guide groove 411 into the linear motion of the magnetic frame 3 along the roller axis.

[0031] When the magnetic frame 3 slides toward the roller 2, the distance between the magnetic block 31 on the magnetic frame and the magnetic ring 22 in the roller cavity decreases, the magnetic attraction increases, the torque required to roll the roller 2 increases, and the feel becomes "heavier"; conversely, when the magnetic frame 3 moves away from the roller 2, the magnetic attraction decreases, and the feel becomes "lighter", thus achieving stepless adjustment of the feel.

[0032] During the synchronous movement of the transmission plate 41 driving the mounting base 42 and the positioning magnetic block 421, the fixed Hall sensor 6 continuously detects the magnetic field signal of the positioning magnetic block 421. The magnetic field strength has a definite correlation with the relative distance between the positioning magnetic block 421 and the sensor. The sensor converts the detected magnetic field change into an electrical signal (such as a voltage value) and outputs it to the main control chip. Based on the preset correlation, the main control chip can accurately determine the real-time position of the transmission plate 41 and the magnetic frame 3, thereby achieving closed-loop control of the adjustment state and ensuring the accuracy of the feel setting. When the detected position signal reaches the user-set target value, the control motor 51 stops rotating.

[0033] This application also provides an embodiment of a mouse, in which an adjustable scroll wheel encoder as described in the above embodiment is installed inside the mouse. The main control chip of the mouse is electrically connected to the encoder's drive component 5 and positioning signal component 6, receives the feel adjustment command issued by the user through the driver program or a dedicated button on the mouse, and controls the encoder to complete the corresponding adjustment action.

[0034] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any minor modifications, equivalent substitutions and improvements made to the above embodiments based on the technical essence of the present utility model should be included within the protection scope of the technical solution of the present utility model.

Claims

1. A roller encoder with adjustable rolling feel, comprising a base, a roller, a magnetic frame, a drive assembly, a transmission mechanism, and a positioning signal assembly; the roller is rotatably mounted on the base and has a hollow annular cavity, the inner wall of which is provided with a magnetic conductive or magnetic structure; the magnetic frame is slidably disposed on the base, its sliding direction being parallel to the axial direction of the roller, and the magnetic frame is provided with a magnetic action part for applying magnetic force to the roller; the drive assembly is used to drive the magnetic frame to slide, thereby changing the relative distance between the magnetic action part and the roller; characterized in that: The positioning signal component includes a positioning magnetic block and a magnetic field sensor; the transmission mechanism includes a transmission plate with an obliquely extending guide groove; the magnetic frame extends a connecting arm with a protrusion at its end that mates with the guide groove; the driving component drives the transmission plate to move, and through the engagement of the guide groove and the protrusion, converts the movement of the transmission plate into axial sliding of the magnetic frame; the magnetic field sensor is fixed to the base, and the change in position of the positioning magnetic block relative to the magnetic field sensor causes a change in the magnetic field received by the magnetic field sensor, thereby outputting a position signal.

2. The roller encoder with adjustable rolling feel according to claim 1, characterized in that: The lower part of the transmission plate is provided with a transmission rack, and the drive assembly includes a motor and a gear set connected to the output shaft of the motor, the gear set meshing with the transmission rack.

3. The roller encoder with adjustable rolling feel according to claim 2, characterized in that: The transmission plate is connected to a mounting base, and the positioning magnetic block is installed in the mounting base.

4. The roller encoder with adjustable rolling feel according to claim 3, characterized in that: The mounting base is integrally formed with or fixedly connected to the transmission plate.

5. The roller encoder with adjustable rolling feel according to claim 1, characterized in that: The magnetic field sensor is a Hall sensor or a tunnel magnetoresistive sensor.

6. The roller encoder with adjustable rolling feel according to claim 1, characterized in that: The inner wall of the roller cavity is provided with a ring-shaped magnetic or conductive structure, and the inner wall of the ring-shaped structure is provided with several grooves at intervals.

7. The roller encoder with adjustable rolling feel according to claim 1, characterized in that: It also includes a sliding seat, which is fixedly mounted on the base, and the magnetic frame is slidably mounted on the sliding seat. The sliding trajectory of the magnetic frame on the sliding seat is in the axial direction of the roller.

8. A mouse, characterized in that, Including a roller encoder with adjustable rolling feel as described in any one of claims 1-7.

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