Magnetic ring type mouse wheel state switching device

Abstract

The utility model discloses a magnetic ring type mouse wheel state switching device which comprises a shell, a wheel, a magnetic ring, a magnetic conductive block unit and a driving device. The rolling wheel is rotatably installed on the shell, and the magnetic ring and the rolling wheel are fixedly connected and coaxial. N poles and S poles are alternately distributed on the magnetic ring in the circumferential direction of the magnetic ring. The magnetic block unit comprises a magnetic block, at least part of the magnetic block is located on the inner side of the magnetic ring, and the side, right facing the inner side face of the magnetic ring, of the magnetic block is in a tooth shape. 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. By means of the design that the magnetic poles of the magnetic rings are alternately distributed in the circumferential direction of the magnetic rings, a magnetic field changing in the circumferential direction is formed near the magnetic rings, the position relation between the magnetic conduction block units and the magnetic rings is adjusted by moving the magnetic conduction block units through the driving device, and therefore switching between the ratchet wheel state and the flywheel state is achieved. The process does not involve increasing the friction force of the roller, so that the service life of the roller is not influenced.

Description

Technical Field

[0001] The utility model relates to the technical field of mice, in particular to a magnetic ring type mouse wheel state switching device. Background Art

[0002] The mouse wheel has a sense of jerkiness when scrolling and turning pages. When the user wants to turn pages quickly, the jerkiness of the wheel makes the wheel turn slowly and at a small angle each time, which hinders the improvement of the page turning speed. The prior art generally switches the state of the wheel by adjusting the position of the lever. The disadvantage of this solution is that in the ratchet state, the lever is always in contact with the wheel and there is a certain amount of pressure. When the wheel rotates, the lever and the wheel slide and rub, and the life of the wheel is limited to a certain extent. Utility Model Content

[0003] The utility model aims to provide a magnetic ring type mouse wheel state switching device, which can adjust the sense of frustration of the wheel rotation without affecting the service life of the wheel.

[0004] To achieve the above purpose, the utility model provides the following solutions:

[0005] The utility model provides a magnetic ring type mouse wheel state switching device, comprising:

[0006] case;

[0007] A roller, the roller being rotatably mounted on the housing;

[0008] A magnetic ring, the magnetic ring is fixedly connected to the roller and is coaxial with the roller; the magnetic ring is alternately distributed with N poles and S poles along its circumference;

[0009] A magnetic conductive block unit, the magnetic conductive block unit comprising a magnetic conductive block, at least a portion of the magnetic conductive block is located inside the magnetic ring, and a side of the magnetic conductive block facing the inner side of the magnetic ring has a tooth shape;

[0010] A driving device is used to drive the magnetic conductive block unit to move so as to adjust the distance between the magnetic conductive block unit and the magnetic ring.

[0011] Preferably, the driving device is used to drive the magnetic conductive block unit to move along the axial direction of the magnetic ring.

[0012] Preferably, the driving device includes a screw, a first guide rod and a screw driving unit; the screw is rotatably mounted on the shell, 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 shell, the first guide rod is parallel to the screw, and the first guide rod passes through the magnetic block unit.

[0013] Preferably, the screw drive unit comprises a first motor, a worm and a worm wheel, the first motor is used to drive the worm to rotate, the worm cooperates with the worm wheel, and the worm wheel is used to drive the screw to rotate.

[0014] Preferably, the magnetic conductive block unit further includes a nut, which is fixedly connected to the magnetic conductive block; the nut is threadedly connected to the screw rod, and the first guide rod passes through the nut.

[0015] Preferably, the driving device is used to drive the magnetic conductive block unit to move along the radial direction of the magnetic ring.

[0016] Preferably, the driving device includes a second guide rod, a pendulum block and a pendulum block driving unit; the second guide rod is installed on the shell; the second guide rod passes through the magnetic block unit and slidingly cooperates with the magnetic block unit; the pendulum block is rotatably installed on the shell, and the pendulum block driving unit is used to drive the pendulum block to swing; the pendulum block is slidingly plugged into the magnetic block unit.

[0017] Preferably, the swing block has a slide groove, and the magnetic block unit has an insertion rod, and the insertion rod is slidably installed in the slide groove so as to move the magnetic block unit through the swing block.

[0018] Preferably, the pendulum 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 is meshed with the second gear, and the diameter of the first gear is smaller than the diameter of the second gear; the second gear is meshed with the pendulum block.

[0019] Preferably, the magnetic conductive block unit further comprises a slider, and the slider is fixedly connected to the magnetic conductive block; the second guide rod passes through the slider and is slidably matched with the slider.

[0020] Compared with the prior art, the utility model has achieved the following technical effects:

[0021] The utility model forms a magnetic field changing in the circumferential direction near the magnetic ring by designing that the magnetic poles of the magnetic ring are alternately distributed along the circumferential direction of the magnetic ring, and adjusts the positional relationship between the magnetic block unit and the magnetic ring by moving the magnetic block unit through the driving device, thereby realizing the switching between the ratchet state and the flywheel state. The above process does not involve increasing the friction of the roller, and thus does not affect the service life of the roller. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 This is a schematic diagram of the magnetic ring type mouse wheel state switching device in the ratchet state according to the embodiment of the utility model;

[0024] Figure 2 This is a schematic diagram of the magnetic ring type mouse wheel state switching device in the flywheel state according to the embodiment of the utility model;

[0025] Figure 3 A schematic diagram of a magnetic ring type mouse wheel state switching device corresponding to Example 1;

[0026] Figure 4 for Figure 3 The schematic diagram of the structure omitting some of the structures;

[0027] Figure 5 for Figure 3 Another schematic diagram of the structure omitting part of the structure;

[0028] Figure 6 A schematic diagram of a magnetic ring type mouse wheel state switching device corresponding to Example 2;

[0029] Figure 7 for Figure 6 The schematic diagram of the structure omitting some of the structures;

[0030] Figure 8 for Figure 6 Another schematic diagram of the structure omitting part of the structure;

[0031] In the figure:

[0032] 10- Magnetic ring type mouse wheel state switching device;

[0033] 1-housing; 2-roller; 3-magnetic ring; 4-magnetic block unit; 5-driving device; 6-roller shaft;

[0034] 31-axis of magnetic ring; 41-magnetic conductive 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;

[0035] 531 - first motor; 532 - worm; 533 - worm wheel; 561 - rod; 562 - slide slot; 563 - second motor; 564 - first gear; 565 - second gear. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0037] The utility model aims to provide a magnetic ring type mouse wheel state switching device, which can adjust the sense of frustration of the wheel rotation without affecting the service life of the wheel.

[0038] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0039] Reference Figures 1 to 8 The present embodiment provides a magnetic ring type mouse wheel state switching device, comprising a housing 1, a wheel 2, a magnetic ring 3, a magnetic conductive block unit 4 and a driving device 5.

[0040] The roller 2 is rotatably mounted on the housing 1, and the magnetic ring 3 is fixedly connected to the roller 2 and coaxially. The magnetic ring 3 has N poles and S poles alternately distributed along its own circumferential direction. The magnetic conductive block unit 4 includes a magnetic conductive block 41, at least part of which is located on the inner side of the magnetic ring 3, and the side of the magnetic conductive block 41 facing the inner side of the magnetic ring 3 has a tooth shape. The driving device 5 is used to drive the magnetic conductive block unit 4 to move so as to adjust the distance between the magnetic conductive block unit 4 and the magnetic ring 3. The magnetic conductive block 41 can be obtained by stacking silicon steel sheets, or it can be a magnet or other ferromagnetic material.

[0041] The working principle of the magnetic ring type mouse wheel state switching device of this embodiment is as follows:

[0042] Figure 1 In the ratchet state, the distance between the magnetic ring 3 and the magnetic block unit 4 is very close. The tooth shape of the magnetic block unit 4 is in the magnetic field formed by the magnetic ring 3, and a certain attraction or repulsion force will be generated between the two. When the roller 2 rotates, the magnetic field facing the tooth shape of the magnetic block unit 4 will change, and each change will produce a sense of frustration.

[0043] Figure 2 In the flywheel state, the distance between the magnetic ring 3 and the magnetic block unit 4 is relatively far (compared to Figure 1 The tooth shape of the magnetic conductive block unit 4 is not within the magnetic field formed by the magnetic ring 3, and the roller 2 has no setback point during the rotation process.

[0044] Figure 1 and Figure 2In the embodiment, the radial position change of the magnetic conductive block unit 4 is realized by the driving device 5. In fact, the driving device 5 can also realize the switching between the ratchet state and the flywheel state by changing the axial position of the magnetic conductive block unit 4, or by combining the radial and axial position changes.

[0045] Example 1:

[0046] Reference Figure 3 to Figure 5 The driving device 5 is used to drive the magnetic block unit 4 to move in a direction parallel to the axis 31 of the magnetic ring. There are many types of driving devices 5 that can achieve axial drive, and those skilled in the art can choose according to actual conditions.

[0047] Exemplarily, 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, the screw 51 is parallel to the axis 31 of the magnetic ring, and the screw driving unit 53 is used to drive the screw 51 to rotate. The screw 51 is threadedly connected to the magnetic conductive block unit 4. The first guide rod 52 is mounted on the housing 1, the first guide rod 52 is parallel to the screw 51, and the first guide rod 52 passes through the magnetic conductive block unit 4.

[0048] When the screw 51 rotates, the screw 51 is threadedly connected to the magnetic block unit 4, and the rotational motion of the screw 51 is converted into a linear motion of the magnetic block unit 4 parallel to the axis 31 of the magnetic ring. Due to the limiting effect of the first guide rod 52, the magnetic block unit 4 can only translate but not rotate. The more the tooth profile of the magnetic block 41 is located on the inner side of the magnetic ring 3, the stronger the sense of frustration when the roller 2 rotates.

[0049] Exemplarily, the screw drive unit 53 includes a first motor 531, a worm 532 and a worm wheel 533. The first motor 531 is used to drive the worm 532 to rotate. The worm 532 cooperates with the worm wheel 533. The worm wheel 533 is used to drive the screw 51 to rotate. The cooperation between the worm wheel 533 and the worm 532 can reduce the rotation speed, thereby improving the control accuracy of the position of the magnetic block 41.

[0050] Exemplarily, the magnetic conductive block unit 4 further includes a nut 42, which is fixedly connected to the magnetic conductive block 41. The nut 42 is threadedly connected to the screw rod 51, and the first guide rod 52 passes through the nut 42. The nut 42 can be made of an easy-to-process material such as plastic, thereby reducing the difficulty of processing the threaded hole for matching the screw rod 51 and the through hole for matching the first guide rod 52.

[0051] Example 2:

[0052] Reference Figure 6 to Figure 8 The driving device 5 is used to drive the magnetic block unit 4 to move radially along the magnetic ring 3. There are many types of driving devices 5 that can achieve radial driving, and those skilled in the art can choose according to actual conditions.

[0053] Exemplarily, the driving device 5 includes a second guide rod 54, a pendulum block 55 and a pendulum block driving unit 56. The second guide rod 54 is mounted on the housing 1, and the second guide rod 54 is perpendicular to the axis 31 of the magnetic ring. The second guide rod 54 passes through the magnetic conductive block unit 4 and slidably cooperates with the magnetic conductive block unit 4. The pendulum block 55 is rotatably mounted on the housing 1, and the pendulum block driving unit 56 is used to drive the pendulum block 55 to swing. The pendulum block 55 is slidably plugged into the magnetic conductive block unit 4.

[0054] When the swing block 55 swings, the swing block 55 slides and engages with the magnetic block unit 4, so that the magnetic block unit 4 slides along the second guide rod 54, thereby adjusting the position of the magnetic block unit 4 along the radial direction of the magnetic ring 3. The closer the tooth shape of the magnetic block 41 is to the magnetic ring 3, the stronger the sense of frustration when the roller 2 rotates.

[0055] Exemplarily, the swing block 55 has a slide groove 562, and the magnetic block unit 4 has an insertion rod 561, and the insertion rod 561 is slidably installed in the slide groove 562 to move the magnetic block unit 4 through the swing block 55. In fact, the insertion rod 561 and the slide groove 562 can also be swapped, that is, the slide groove 562 is located on the magnetic block unit 4, and the insertion rod 561 is located on the swing block 55, which can also achieve the effect of moving the magnetic block unit 4 through the swing block 55.

[0056] Exemplarily, the pendulum block driving unit 56 includes a second motor 563, a first gear 564 and a second gear 565. The second motor 563 is used to drive the first gear 564 to rotate, and the first gear 564 is meshed with the second gear 565, and the diameter of the first gear 564 is smaller than the diameter of the second gear 565. The second gear 565 is meshed with the pendulum block 55. The cooperation between the first gear 564 and the second gear 565 is used to reduce the rotation speed, thereby improving the control accuracy of the position of the magnetic conductive block 41. Since the pendulum block 55 does not need to rotate one circle, the tooth shape of the edge of the pendulum block 55 only needs to be set to one section, that is, the pendulum block 55 is an incomplete gear.

[0057] Exemplarily, the magnetic conductive block unit 4 further includes a slider 43, which is fixedly connected to the magnetic conductive block 41. The second guide rod 54 passes through the slider 43 and slidably cooperates with the slider 43. The slider 43 can be made of an easy-to-process material such as plastic, thereby reducing the difficulty of processing the through hole for matching the second guide rod 54.

[0058] Exemplarily, there are two magnetic conductive 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 move the two magnetic conductive block units 4 respectively.

[0059] The present invention uses specific examples to illustrate the principle and implementation of the present invention. The above examples are only used to help understand the method and core idea of ​​the present invention. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A magnetic ring type mouse wheel state switching device, characterized in that: include: case; A roller, the roller being rotatably mounted on the housing; A magnetic ring, the magnetic ring is fixedly connected to the roller and is coaxial with the roller; the magnetic ring is alternately distributed with N poles and S poles along its circumference; A magnetic conductive block unit, the magnetic conductive block unit comprising a magnetic conductive block, at least a portion of the magnetic conductive block is located inside the magnetic ring, and a side of the magnetic conductive block facing the inner side of the magnetic ring has a tooth shape; A driving device is used to drive the magnetic conductive block unit to move so as to adjust the distance between the magnetic conductive block unit and the magnetic ring.

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

3. The magnetic ring type mouse 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 installed on the shell, 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 installed on the shell, 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 wheel state switching device according to claim 3, characterized in that: The screw drive unit includes a first motor, a worm and a worm wheel. The first motor is used to drive the worm to rotate. The worm cooperates with the worm wheel, and the worm wheel is used to drive the screw to rotate.

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

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

7. The magnetic ring type mouse wheel state switching device according to claim 6, characterized in that: The driving device includes a second guide rod, a pendulum block and a pendulum block driving unit; the second guide rod is installed on the shell; the second guide rod passes through the magnetic block unit and slidably cooperates with the magnetic block unit; the pendulum block is rotatably installed on the shell, and the pendulum block driving unit is used to drive the pendulum block to swing; the pendulum block and the magnetic block unit are slidably plugged into each other.

8. The magnetic ring type mouse wheel state switching device according to claim 7, characterized in that: The swing block has a slide groove, and the magnetic block unit has an insertion rod. The insertion rod is slidably installed in the slide groove so as to move the magnetic block unit through the swing block.

9. The magnetic ring type mouse wheel state switching device according to claim 7, characterized in that: The pendulum 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 is meshed with the second gear, and the diameter of the first gear is smaller than the diameter of the second gear; The second gear is meshed with the pendulum block.

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

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