Magnetic ring type mouse wheel state switching device

Abstract

Disclosed in the present invention is a magnetic ring type mouse wheel state switching device, comprising a housing, a wheel, a magnetic ring, a magnetic conductive block unit, and a driving device. The wheel is rotatably mounted on the housing, and the magnetic ring is fixedly connected to and coaxial with the wheel. The N poles and S poles are alternately distributed in the circumferential direction of the magnetic ring. The magnetic conductive block unit comprises a magnetic conductive block, at least part of the magnetic conductive block is located inside of the magnetic ring, and the side of the magnetic conductive block facing the inner side surface of the magnetic ring is toothed. The driving device is used for driving the magnetic conductive block unit to move, so as to adjust the distance between the magnetic conductive block unit and the magnetic ring. In the present invention, by means of the design where the magnetic poles are alternately distributed in the circumferential direction of the magnetic ring, a magnetic field varying in the circumferential direction is formed near the magnetic ring, and the magnetic conductive block unit is driven to move by the driving device, so as to adjust the positional relationship between the magnetic conductive block unit and the magnetic ring, thereby realizing the switching between a ratchet state and a flywheel state. The above process does not involve increasing the friction force of the wheel, and thus does not affect the service life of the wheel.

Description

Magnetic ring mouse wheel state switching device Technical Field

[0001] This invention relates to the field of mouse technology, and in particular to a magnetic ring type mouse wheel state switching device. Background Technology

[0002] The mouse wheel produces a jerky feel when scrolling pages. When users want to scroll quickly, this jerky feeling makes the wheel rotate slowly and the angle it turns small with each stroke, hindering faster page turning. Current technology typically uses a lever to switch the scroll wheel's state. The drawback of this solution is that in ratchet mode, the lever is always in contact with the scroll wheel and under some pressure. When the scroll wheel rotates, sliding friction occurs between the lever and the scroll wheel, limiting the scroll wheel's lifespan.

[0003] Summary of the Invention

[0004] The purpose of this invention is to provide a magnetic ring type mouse scroll wheel state switching device that can adjust the scroll wheel rotation feel without affecting the scroll wheel's service life.

[0005] To achieve the above objectives, the present invention provides the following solution:

[0006] This invention provides a magnetic ring type mouse wheel state switching device, comprising:

[0007] case;

[0008] A roller, which is rotatably mounted on the housing;

[0009] A magnetic ring is fixedly connected to the roller and coaxial with it; the magnetic ring has N poles and S poles alternately distributed along its circumference.

[0010] A magnetic block unit, the magnetic block unit including a magnetic block, at least a portion of the magnetic block being located inside the magnetic ring, the magnetic block having a toothed shape on the side facing the inner side of the magnetic ring;

[0011] A driving device is provided to drive the magnetic block unit to move, thereby adjusting the distance between the magnetic block unit and the magnetic ring.

[0012] Preferably, the driving device is used to drive the magnetic block unit to move along the axial direction of the magnetic ring.

[0013] Preferably, the driving device includes a screw, a first guide rod, and a screw driving unit; the screw is rotatably mounted on the housing, the screw is parallel to the axis of the magnetic ring, and the screw driving unit is used to drive the screw to rotate; the screw is threadedly connected to the magnetic block unit; the first guide rod is mounted on the housing, the first guide rod is parallel to the screw, and the first guide rod passes through the magnetic block unit.

[0014] Preferably, the screw drive unit includes a first motor, a worm gear, and a worm wheel. The first motor drives the worm gear to rotate, and the worm gear cooperates with the worm wheel to drive the screw gear to rotate.

[0015] Preferably, the magnetic block unit further includes a nut, which is fixedly connected to the magnetic block; the nut is threadedly connected to the screw, and the first guide rod passes through the nut.

[0016] Preferably, the driving device is used to drive the magnetic block unit to move radially along the magnetic ring.

[0017] Preferably, the driving device includes a second guide rod, a swing block, and a swing block driving unit; the second guide rod is mounted on the housing; the second guide rod passes through the magnetic block unit and is slidably engaged with the magnetic block unit; the swing block is rotatably mounted on the housing, and the swing block driving unit is used to drive the swing block to swing; the swing block is slidably inserted into the magnetic block unit.

[0018] Preferably, the pendulum block has a sliding groove, and the magnetic block unit has a plug rod, which is slidably installed in the sliding groove so as to move the magnetic block unit by the pendulum block.

[0019] Preferably, the pendulum drive unit includes a second motor, a first gear, and a second gear; the second motor drives the first gear to rotate, the first gear meshes with the second gear, the diameter of the first gear is smaller than the diameter of the second gear; the second gear meshes with the pendulum block.

[0020] Preferably, the magnetic block unit further includes a slider, which is fixedly connected to the magnetic block; the second guide rod passes through the slider and slides with the slider.

[0021] The present invention achieves the following technical effects compared to the prior art:

[0022] This invention utilizes a design where magnetic poles of the magnetic ring are alternately distributed along its circumference, creating a circumferentially varying magnetic field near the ring. By moving the magnetically conductive block unit through a driving device, the positional relationship between the block unit and the magnetic ring is adjusted, thereby switching between ratchet and flywheel states. This process does not increase the friction of the rollers, thus not affecting their lifespan. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 is a schematic diagram of the magnetic ring mouse wheel state switching device in the ratchet state according to an embodiment of the present invention;

[0025] Figure 2 is a schematic diagram of the magnetic ring mouse wheel state switching device in the flywheel state according to an embodiment of the present invention;

[0026] Figure 3 is a schematic diagram of the magnetic ring mouse wheel state switching device corresponding to Example 1;

[0027] Figure 4 is a schematic diagram of the omitted part of the structure in Figure 3;

[0028] Figure 5 is another schematic diagram of the omitted part of the structure in Figure 3;

[0029] Figure 6 is a schematic diagram of the magnetic ring mouse wheel state switching device corresponding to Example 2;

[0030] Figure 7 is a schematic diagram of the omitted part of the structure in Figure 6;

[0031] Figure 8 is another schematic diagram of the omitted part of the structure in Figure 6;

[0032] In the picture:

[0033] 10-Magnetic ring type mouse wheel state switching device;

[0034] 1-Housing; 2-Roller; 3-Magnetic ring; 4-Magnetic guide block unit; 5-Drive device; 6-Roller shaft;

[0035] 31-Axis of the magnetic ring; 41-Magnetic guide block; 42-Nut; 43-Slider; 51-Screw; 52-First guide rod; 53-Screw drive unit; 54-Second guide rod; 55-Swing block; 56-Swing block drive unit;

[0036] 531-First motor; 532-Worm; 533-Worm wheel; 561-Plug; 562-Slide groove; 563-Second motor; 564-First gear; 565-Second gear. Detailed Implementation

[0037] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0038] The purpose of this invention is to provide a magnetic ring type mouse scroll wheel state switching device that can adjust the scroll wheel rotation feel without affecting the scroll wheel's service life.

[0039] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0040] Referring to Figures 1 to 8, this embodiment provides a magnetic ring type mouse scroll wheel state switching device, including a housing 1, a scroll wheel 2, a magnetic ring 3, a magnetic block unit 4, and a driving device 5.

[0041] Roller 2 is rotatably mounted on housing 1, and magnetic ring 3 is fixedly connected to roller 2 and coaxial. N and S poles are alternately distributed along the circumference of magnetic ring 3. Magnetic block unit 4 includes magnetic block 41, at least a portion of which is located inside magnetic ring 3, and the side of magnetic block 41 facing the inner surface of magnetic ring 3 has teeth. Driving device 5 is used to drive magnetic block unit 4 to move, thereby adjusting the distance between magnetic block unit 4 and magnetic ring 3. Magnetic block 41 can be obtained by stacking silicon steel sheets, or it can be a magnet or other ferromagnetic material.

[0042] The working principle of the magnetic ring mouse wheel state switching device in this embodiment is as follows:

[0043] Figure 1 shows the ratchet state. The magnetic ring 3 and the magnetic block unit 4 are very close. The teeth of the magnetic block unit 4 are in the magnetic field formed by the magnetic ring 3. A certain attraction or repulsion force will be generated between the two. When the roller 2 rotates, the magnetic field facing the teeth of the magnetic block unit 4 will change. Each change will produce a jerking sensation.

[0044] Figure 2 shows the flywheel state, where the magnetic ring 3 is far from the magnetic block unit 4 (compared to the position in Figure 1), the tooth profile of the magnetic block unit 4 is not within the magnetic field formed by the magnetic ring 3, and the roller 2 has no stuttering points during rotation.

[0045] In Figures 1 and 2, the radial position change of the magnetic block unit 4 is achieved by the drive device 5. In fact, the drive device 5 can also switch between ratchet and flywheel states by changing the axial position of the magnetic block unit 4, or by a combination of radial and axial position changes.

[0046] Example 1

[0047] Referring to Figures 3 to 5, the drive device 5 is used to drive the magnetic block unit 4 to move along the axis 31 parallel to the magnetic ring. There are various types of drive devices 5 capable of axial drive, and those skilled in the art can select one according to the actual situation.

[0048] For example, the driving device 5 includes a screw 51, a first guide rod 52, and a screw driving unit 53. The screw 51 is rotatably mounted on the housing 1, and the screw 51 is parallel to the axis 31 of the magnetic ring. The screw driving unit 53 is used to drive the screw 51 to rotate. The screw 51 is threadedly connected to the magnetic block unit 4. The first guide rod 52 is mounted on the housing 1, and the first guide rod 52 is parallel to the screw 51. The first guide rod 52 passes through the magnetic block unit 4.

[0049] When the screw 51 rotates, the screw 51's rotational motion is converted into linear motion of the magnetic block unit 4 parallel to the axis 31 of the magnetic ring through the threaded connection between the screw 51 and the magnetic block unit 4. Due to the limiting effect of the first guide rod 52, the magnetic block unit 4 can only translate and cannot rotate. The more teeth of the magnetic block 41 are located inside the magnetic ring 3, the stronger the jerking sensation when the roller 2 rotates.

[0050] For example, the screw drive unit 53 includes a first motor 531, a worm 532, and a worm wheel 533. The first motor 531 drives the worm 532 to rotate. The worm 532 cooperates with the worm wheel 533, which drives the screw 51 to rotate. The cooperation between the worm wheel 533 and the worm 532 reduces the rotational speed, thereby improving the control accuracy of the position of the magnetic block 41.

[0051] For example, the magnetic block unit 4 also includes a nut 42, which is fixedly connected to the magnetic block 41. The nut 42 is threadedly connected to the screw 51, and the first guide rod 52 passes through the nut 42. The nut 42 can be made of easily machinable materials such as plastic, thereby reducing the machining difficulty of the threaded hole used to match the screw 51 and the through hole used to match the first guide rod 52.

[0052] Example 2

[0053] Referring to Figures 6-8, the driving device 5 is used to drive the magnetic block unit 4 to move radially along the magnetic ring 3. There are various types of driving devices 5 capable of radial driving, and those skilled in the art can select one according to the actual situation.

[0054] For example, the driving device 5 includes a second guide rod 54, a swing block 55, and a swing block driving unit 56. The second guide rod 54 is mounted on the housing 1 and is perpendicular to the axis 31 of the magnetic ring. The second guide rod 54 passes through the magnetic guide block unit 4 and is slidably engaged with the magnetic guide block unit 4. The swing block 55 is rotatably mounted on the housing 1, and the swing block driving unit 56 is used to drive the swing block 55 to swing. The swing block 55 is slidably inserted into the magnetic guide block unit 4.

[0055] When the swing block 55 swings, through the sliding engagement between the swing block 55 and the magnetic block unit 4, the swing block 55 will move the magnetic block unit 4, causing the magnetic block unit 4 to slide along the second guide rod 54, thereby adjusting the position of the magnetic block unit 4 radially along the magnetic ring 3. The closer the teeth of the magnetic block 41 are to the magnetic ring 3, the stronger the jerking sensation when the roller 2 rotates.

[0056] For example, the swing block 55 has a groove 562, and the magnetic block unit 4 has a rod 561. The rod 561 is slidably installed in the groove 562 so that the magnetic block unit 4 can be moved by the swing block 55. In fact, the positions of the rod 561 and the groove 562 can also be interchanged, that is, the groove 562 is on the magnetic block unit 4, and the rod 561 is on the swing block 55, which can also achieve the effect of moving the magnetic block unit 4 by the swing block 55.

[0057] For example, the pendulum drive unit 56 includes a second motor 563, a first gear 564, and a second gear 565. The second motor 563 drives the first gear 564 to rotate, and the first gear 564 meshes with the second gear 565. The diameter of the first gear 564 is smaller than the diameter of the second gear 565. The second gear 565 meshes with the pendulum block 55. The engagement of the first gear 564 and the second gear 565 reduces the rotational speed, thereby improving the control accuracy of the position of the magnetic block 41. Since the pendulum block 55 does not need to rotate one revolution, the tooth profile on the edge of the pendulum block 55 only needs to be set for a certain segment, that is, the pendulum block 55 is an incomplete gear.

[0058] For example, the magnetic block unit 4 also includes a slider 43, which is fixedly connected to the magnetic block 41. The second guide rod 54 passes through the slider 43 and slides in engagement with it. The slider 43 can be made of easily machinable material such as plastic, thereby reducing the machining difficulty of the through hole used to match the second guide rod 54.

[0059] For example, there are two magnetic block units 4. The rotation axis of the swing block 55 is the axis 31 of the magnetic ring, and the two ends of the swing block 55 are used to actuate the two magnetic block units 4 respectively.

[0060] Specific examples have been used to illustrate the principles and implementation methods of this invention. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this invention. Furthermore, those skilled in the art will recognize that, based on the ideas of this invention, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of this invention.

Claims

1. A magnetic ring type mouse scroll wheel state switching device, characterized in that, include: case; A roller, which is rotatably mounted on the housing; A magnetic ring is fixedly connected to the roller and coaxial with it; the magnetic ring has N poles and S poles alternately distributed along its circumference. A magnetic block unit, the magnetic block unit including a magnetic block, at least a portion of the magnetic block being located inside the magnetic ring, the magnetic block having a toothed shape on the side facing the inner side of the magnetic ring; A driving device is provided to drive the magnetic block unit to move, thereby adjusting the distance between the magnetic block unit and the magnetic ring.

2. The magnetic ring type mouse scroll wheel state switching device according to claim 1, characterized in that: The driving device is used to drive the magnetic block unit to move along the axial direction of the magnetic ring.

3. The magnetic ring type mouse scroll wheel state switching device according to claim 2, characterized in that: The driving device includes a screw, a first guide rod, and a screw driving unit; the screw is rotatably mounted on the housing, the screw is parallel to the axis of the magnetic ring, and the screw driving unit is used to drive the screw to rotate; the screw is threadedly connected to the magnetic block unit; the first guide rod is mounted on the housing, the first guide rod is parallel to the screw, and the first guide rod passes through the magnetic block unit.

4. The magnetic ring type mouse scroll wheel state switching device according to claim 3, characterized in that: The screw drive unit includes a first motor, a worm gear, and a worm wheel. The first motor drives the worm gear to rotate, and the worm gear cooperates with the worm wheel to drive the screw gear to rotate.

5. The magnetic ring type mouse scroll wheel state switching device according to claim 3, characterized in that: The magnetic block unit also includes a nut, which is fixedly connected to the magnetic block; the nut is threadedly connected to the screw, and the first guide rod passes through the nut.

6. The magnetic ring type mouse scroll wheel state switching device according to claim 1, characterized in that: The driving device is used to drive the magnetic block unit to move radially along the magnetic ring.

7. The magnetic ring type mouse scroll wheel state switching device according to claim 6, characterized in that: The driving device includes a second guide rod, a swing block, and a swing block driving unit; the second guide rod is mounted on the housing; the second guide rod passes through the magnetic block unit and is slidably engaged with the magnetic block unit; the swing block is rotatably mounted on the housing, and the swing block driving unit is used to drive the swing block to swing; the swing block is slidably inserted into the magnetic block unit.

8. The magnetic ring type mouse scroll wheel state switching device according to claim 7, characterized in that: The pendulum block has a sliding groove, and the magnetic block unit has a plug rod. The plug rod is slidably installed in the sliding groove so that the magnetic block unit can be moved by the pendulum block.

9. The magnetic ring type mouse scroll wheel state switching device according to claim 7, characterized in that: The swing block driving unit includes a second motor, a first gear, and a second gear; the second motor is used to drive the first gear to rotate, the first gear meshes with the second gear, and the diameter of the first gear is smaller than the diameter of the second gear; The second gear meshes with the pendulum block.

10. The magnetic ring type mouse scroll wheel state switching device according to claim 7, characterized in that: The magnetic block unit also includes a slider, which is fixedly connected to the magnetic block; the second guide rod passes through the slider and slides with the slider.

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