A damping-adjustable roller structure and a damping adjustment method

Abstract

The application belongs to the technical field of electronic components, and provides a damping-adjustable roller structure and a damping adjustment method, which comprise: a mounting base; a first annular shaft fixed on the mounting base, the end surface of the first annular shaft being uniformly provided with a plurality of first bosses; a second annular shaft rotationally arranged on the mounting base and coaxially arranged with the first annular shaft, the surface of one end of the second annular shaft facing the first bosses being uniformly provided with second bosses; a magnetic field coil being arranged on the first annular shaft, the magnetic field coil being used for adjusting the magnetic intensity of the first annular shaft, the first bosses and the second bosses having a gap therebetween, and the first bosses and the second bosses being arranged in one-to-one correspondence. The magnetic field intensity of the first annular shaft is changed by adjusting the current size and direction of the magnetic field coil, the magnetic attraction force between the first bosses and the second bosses is adjusted, and the damping of the second annular shaft during rotation is adjustable. Meanwhile, the magnetic field coil can convert the kinetic energy of the second annular shaft into electric energy to achieve the technical effect of electric energy collection.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of electronic components, and particularly relates to a damping-adjustable roller structure and a damping adjustment method. BACKGROUND

[0002] The magnetic damping roller structure is a rotating structure that generates a magnetic damping effect through a magnetic material. It can be applied to fields such as the roller of a keyboard or a mouse, the knob of an automobile instrument, the control knob of a household appliance, etc. The magnetic damping of the magnetic damping roller structure is mainly used to control the rotation speed of the rotating structure or provide a damping effect. The magnetic damping effect is used to improve the hand feeling when a user rolls the roller structure, so that the rotation of the rotating structure is more stable and controllable. Compared with the traditional encoder roller that contacts and rubs through a metal sheet, the magnetic damping effect without contact and friction makes the roller knob have a longer service life. For example, a mouse commonly used by us has a roller. In order to improve the hand feeling and controllability of the page of the computer when a user rolls the mouse roller, the mouse roller needs to have paragraph feedback and damping feedback.

[0003] However, taking the mouse roller as an example, the internal structure and magnetic strength of the current magnetic damping mouse roller are fixed, so the paragraph feeling and damping feeling of the current magnetic damping mouse roller during rotation are usually fixed and cannot be adjusted. The user cannot adjust the size of the damping feedback of the roller according to his own preference.

[0004] Therefore, the above-mentioned technical defects need to be changed. SUMMARY

[0005] In view of the above-mentioned deficiencies of the prior art, the purpose of the present application is to provide a damping-adjustable roller structure and a damping adjustment method, which aims to adjust the damping size and paragraph feeling intensity of the roller during rotation, and further realize the adjustment of the hand feeling. At the same time, the technology effect of converting kinetic energy into electrical energy to realize electrical energy collection during the rotation of the roller can also be achieved.

[0006] A technical scheme adopted by the present application to solve the technical problem is as follows: a damping-adjustable roller structure and a damping adjustment method, which comprise:

[0007] a mounting base;

[0008] a first annular shaft, the first annular shaft being fixed on the mounting base, a plurality of first grooves being uniformly arranged on at least one end surface of the first annular shaft, and a first protrusion being formed between two adjacent first grooves;

[0009] and at least one second annular shaft, the second annular shaft being rotationally arranged on the mounting base and coaxially arranged with the first annular shaft, a plurality of second grooves being uniformly arranged on the surface of one end of the second annular shaft facing the first protrusion, and a second protrusion being formed between two adjacent second grooves;

[0010] The first annular shaft is provided with at least one magnetic field coil, the magnetic field coil is used for adjusting the magnetic intensity of the first annular shaft, the magnetic field coil is provided with at least two electrodes, the electrodes are used for connecting an external circuit, the first boss and the second boss have a gap, the first boss and the second boss are one-to-one corresponding and generate an attractive magnetic force.

[0011] The embodiment is further provided that at least one of the first annular shaft and the second annular shaft is a magnetic annular shaft.

[0012] The embodiment is further provided that the second annular shaft is a magnetic annular shaft, the magnetic field coil is used for adjusting the magnetic intensity of the first annular shaft, or cutting the magnetic induction lines of the second annular shaft in a rotating state to generate electric energy.

[0013] The embodiment is further provided that an annular groove is formed in the outer periphery of the first annular shaft, and the magnetic field coil is wound in the annular groove in the circumferential direction of the first annular shaft.

[0014] The embodiment is further provided that the magnetic field coil is a copper coil.

[0015] The embodiment is further provided that the number of the first grooves is the same as the number of the second grooves, the size of the first boss is the same as the size of the second boss, and the shape of the first boss is the same as the shape of the second boss.

[0016] The embodiment is further provided that the first groove and the second groove are both U-shaped grooves.

[0017] The embodiment is further provided that the second annular shaft is coaxially provided with an outer ring on the second annular shaft, the outer ring is detachably connected with the second annular shaft, the outer ring is a metal wheel, a plurality of positioning pins are arranged on the second annular shaft, and the second annular shaft is fixedly connected with the outer ring through the positioning pins.

[0018] The embodiment is further provided that the outer ring comprises:

[0019] A grating clamping ring is coaxially arranged on the second annular shaft, a plurality of light transmission holes are formed in the circumferential direction of the grating clamping ring, and the extension direction of the light transmission hole is parallel to the axial direction of the grating clamping ring.

[0020] And an outer wheel is sleeved on the outer side wall of the grating clamping ring.

[0021] The axial center of the grating clamping ring is provided with a clearance groove for avoiding the first annular shaft and the second annular shaft.

[0022] The second aspect of the application provides a damping adjustment method of the damping-adjustable roller structure according to any one of the first aspect.

[0023] Adjust the current size and direction of the magnetic field coil on the first annular shaft according to the adjustment instruction of the two electrode receiving circuits of the magnetic field coil, change the magnetic attraction between the first annular shaft and the second annular shaft according to the adjustment instruction, and then change the damping between the first boss and the second boss; wherein the second annular shaft is driven to rotate by the outer ring wheel, the first boss is arranged on the first annular shaft, and the second boss is arranged on the second annular shaft;

[0024] When the outer ring wheel is rolled by the user, the outer ring wheel drives the second annular shaft to rotate;

[0025] The first boss on the first annular shaft and the second boss on the second annular shaft are offset by the rotation of the second annular shaft, wherein the first boss and the second boss are one-to-one corresponding, and the first boss and the second boss attract each other;

[0026] The magnetic attraction between the first boss and the second boss is changed, so that the damping between the first boss and the second boss is generated;

[0027] Adjust the current size and direction of the magnetic field coil on the first annular shaft, so as to increase or decrease the magnetic attraction of the first annular shaft, and then increase or decrease the damping between the first boss and the second boss.

[0028] Compared with the prior art, the application provides a damping-adjustable roller structure and a damping adjustment method. The magnetic field strength of the first annular shaft can be changed by adjusting the current size and direction of the magnetic field coil, and then the magnetic attraction between the first boss and the second boss is adjusted, so that the damping size of the second annular shaft during rotation is adjustable. Specifically, when the second annular shaft is rotated, the damping value of the attraction between the first annular shaft and the second annular shaft changes to produce a feedback of light and heavy paragraphs of hand feeling. At the same time, the magnetic field coil can also cut the magnetic induction line to convert the kinetic energy of the second annular shaft into electrical energy, so as to realize the technical effect of electrical energy collection. It can be applied to the fields of mouse, keyboard, automobile instrument panel and the like. BRIEF DESCRIPTION OF DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creative labor.

[0030] Figure 1 It is a whole structure schematic diagram of a damping-adjustable roller structure provided by the present embodiment;

[0031] Figure 2is another overall structure schematic view of the damper-adjustable roller structure provided in the embodiment;

[0032] Figure 3 is an exploded schematic view of the damper-adjustable roller structure provided in the embodiment;

[0033] Figure 4 is another exploded schematic view of the damper-adjustable roller structure provided in the embodiment;

[0034] Figure 5 is an exploded schematic view of the first annular shaft and the second annular shaft of the damper-adjustable roller structure provided in the embodiment;

[0035] Figure 6 is another exploded schematic view of the first annular shaft and the second annular shaft of the damper-adjustable roller structure provided in the embodiment;

[0036] Figure 7 is a structure schematic view of the first annular shaft of the damper-adjustable roller structure provided in the embodiment;

[0037] Figure 8 is a structure schematic view of the second annular shaft of the damper-adjustable roller structure provided in the embodiment;

[0038] Figure 9 is an overall structure schematic view of another embodiment of the damper-adjustable roller structure provided in the embodiment;

[0039] Figure 10 is an exploded schematic view of another embodiment of the damper-adjustable roller structure provided in the embodiment;

[0040] Figure 11 is an exploded schematic view of another embodiment of the damper-adjustable roller structure provided in the embodiment.

[0041] In the figure: 1, mounting base; 11, connecting shaft; 2, first annular shaft; 21, first groove; 22, first boss; 23, annular groove; 24, magnetic field coil; 241, electrode; 3, outer ring; 31, grating clamping member ring; 311, avoiding groove; 312, light hole; 32, outer ring; 4, second annular shaft; 41, second groove; 42, second boss; 43, positioning pin. DETAILED DESCRIPTION

[0042] The embodiments of the present application are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only, for the purpose of explanation, and are not to be understood as a limitation of the present application.

[0043] In the description of the application, it needs to be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the application. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined with "first", "second" can be explicitly or implicitly included one or more. In the description of the application, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0044] In the description of the application, it needs to be understood that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the application can be understood according to the specific circumstances.

[0045] In addition, the technical features involved in the different embodiments of the application described above can be combined with each other as long as there is no conflict.

[0046] The application provides a method for preparing a compound as shown in the specification. Figure 1 、 Figure 2 、 Figure 3 and Figure 4As shown, a damping adjustable roller structure is a rotating structure that generates magnetic damping effect through magnetic material combined with magnetic field coil 24. It is applied to fields such as the roller of keyboard or mouse, the knob of automobile instrument, the control knob of household appliance, etc. The magnetic damping of the roller structure is mainly used to control the rotation speed of the rotating structure or provide damping effect. In this way, the user's hand feeling is improved, and the rotation of the rotating structure is more stable and controllable. The main structure of the present application comprises: mounting base 1, first annular shaft 2 and at least one second annular shaft 4; first annular shaft 2 is fixed on mounting base 1, and a plurality of first grooves 21 are uniformly arranged on at least one end surface of first annular shaft 2, and a first boss 22 is formed between two adjacent first grooves 21; second annular shaft 4 is rotatably arranged on mounting base 1 and coaxially arranged with first annular shaft 2, and a plurality of second grooves 41 are uniformly arranged on the surface of the end of second annular shaft 4 facing first boss 22, and a second boss 42 is formed between two adjacent second grooves 41; wherein at least one magnetic field coil 24 is arranged on first annular shaft 2, and magnetic field coil 24 is used to adjust the magnetic intensity of first annular shaft 2. As shown Figure 6 and Figure 7 As shown, at least two electrodes 241 are arranged on magnetic field coil 24, electrode 241 is used to connect external circuit, first boss 22 and second boss 42 have gap, first boss 22 and second boss 42 are arranged one by one and generate attractive magnetic force. Mounting base 1 is used to fix first annular shaft 2, so that first annular shaft 2 acts as a stator, second annular shaft 4 is coaxially connected with first annular shaft 2, and second annular shaft 4 acts as a rotor. First annular shaft 2 and second annular shaft 4 can be magnetic material shaft or magnetic shaft with magnetic field intensity. When magnetic field coil 24 is powered on, the magnetic attraction strength between first annular shaft 2 and second annular shaft 4 will change, so as to adjust the damping size when first annular shaft 2 and second annular shaft 4 rotate.

[0047] Specifically, mounting base 1 is used to install and fix each structural component, and different functional components such as rotary switch, photoelectric switch, etc. can be arranged on mounting base 1 according to the needs of function. Connecting shaft 11 is arranged on mounting base 1, and in some embodiments, connecting shaft 11 is configured as metal shaft to ensure the structural strength and durability of the rotating structure; first annular shaft 2 is sleeved on connecting shaft 11 and fixed on mounting base 1, and a plurality of first grooves 21 are uniformly arranged on at least one end surface of first annular shaft 2, and a plurality of first grooves 21 extend in the direction away from the axis of first annular shaft 2, and a first boss 22 is formed between two adjacent first grooves 21.

[0048] It needs to be explained that taking the mouse scroll wheel as an example, the magnetic damping mouse scroll wheel nowadays has fixed internal structure and magnetic strength, and the scroll wheel has fixed and unadjustable paragraph feeling and damping feeling during rotation. Users cannot adjust the damping feedback size of the scroll wheel according to their own preferences.

[0049] The scheme can change the magnetic field strength of the first annular shaft 2 by adjusting the current size and direction of the magnetic field coil 24, and then adjust the magnetic attraction force size between the first boss 22 and the second boss 42, so that the damping size of the second annular shaft 4 during rotation is adjustable. Specifically, when the second annular shaft 4 is rotated, the damping value of the attraction between the first annular shaft 2 and the second annular shaft 4 changes to produce the light and heavy paragraph feedback of the hand feeling. At the same time, the kinetic energy of the first annular shaft 2 during rotation can be converted into electrical energy to realize the technical effect of collecting and generating electrical energy. It can be applied to the fields of mouse, keyboard, automobile instrument panel, etc. When the outer ring wheel 3 accelerates rotation, the second annular shaft 4 can be made to rotate rapidly by using torque inertia, until the rotation speed of the outer ring wheel 3 and the second annular shaft 4 is reduced to the point that it cannot overcome the damping, and then the speed is reduced to stop.

[0050] Further, as shown in Figure 1 、 Figure 3 At least one of the first annular shaft 2 and the second annular shaft 4 is a ring-shaped shaft with magnetic attraction. In this way, the first boss 22 and the second boss 42 are attracted due to the magnetic attraction. In actual implementation, embodiment one, the first annular shaft 2 is a ring-shaped shaft with magnetic attraction, and the second annular shaft 4 is a metal shaft that can be magnetically attracted. Embodiment two, the second annular shaft 4 is a ring-shaped shaft with magnetic attraction; the first annular shaft 2 is a metal shaft that can be magnetically attracted. Embodiment three, the first annular shaft 2 and the second annular shaft 4 are both ring-shaped shafts with magnetic attraction.

[0051] In embodiment one, the first annular shaft 2 is a ring-shaped shaft with magnetic attraction, and the second annular shaft 4 is a metal shaft that can be magnetically attracted. Since the first annular shaft 2 is a ring-shaped shaft with magnetic attraction, the first boss 22 with magnetic attraction can magnetically attract the second boss 42. When the magnetic field coil 24 is powered, the magnetic attraction of the first annular shaft 2 is suppressed or enhanced. In turn, the magnetic attraction between the first boss 22 and the second boss 42 changes, thereby realizing the adjustment of the damping size and paragraph feeling intensity of the scroll wheel during rotation, and further realizing the adjustment of the hand feeling lightness and heaviness. At the same time, the kinetic energy of the scroll wheel during rotation can be converted into electrical energy to realize the technical effect of collecting electrical energy.

[0052] In the second embodiment, the second ring-shaped shaft 4 is a ring-shaped shaft with magnetic attraction, and the first ring-shaped shaft 2 is a metal shaft that can be magnetically attracted. Because the second ring-shaped shaft 4 is a ring-shaped shaft with magnetic attraction, the second boss 42 with magnetic attraction can still magnetically attract the first boss 22 without the magnetic field coil 24 being powered. When the magnetic field coil 24 is powered, the magnetic attraction of the first ring-shaped shaft 2 is inhibited or enhanced. In turn, the magnetic attraction between the first boss 22 and the second boss 42 changes, so that the damping size and paragraph feeling intensity of the roller when rotating can be adjusted, and in turn the lightness or heaviness of the hand feeling is adjusted. In addition, it needs to be emphasized that because the second ring-shaped shaft 4 has magnetism, when the second ring-shaped shaft 4 rotates, the magnetic field coil 24 on the first ring-shaped shaft 2 can cut the magnetic induction lines of the second ring-shaped shaft 4, and in turn the magnetic field coil 24 generates electric energy and is collected into the power storage device of the mouse, realizing the technical effect of converting kinetic energy into electric energy.

[0053] In the third embodiment, because the first ring-shaped shaft 2 and the second ring-shaped shaft 4 are both ring-shaped shafts with magnetic attraction, the first boss 22 and the second boss 42 are attracted to each other under the action of magnetic attraction without the magnetic field coil 24 being powered, and when the second ring-shaped shaft 4 rotates, a large magnetic damping effect can be generated. When the magnetic field coil 24 is powered, the magnetic attraction of the first ring-shaped shaft 2 is inhibited or enhanced. In turn, the magnetic attraction between the first boss 22 and the second boss 42 changes, so that the damping size and paragraph feeling intensity of the roller when rotating can be adjusted, and in turn the lightness or heaviness of the hand feeling is adjusted. As in the second embodiment, because the second ring-shaped shaft 4 has magnetism, when the second ring-shaped shaft 4 rotates, the magnetic field coil 24 on the first ring-shaped shaft 2 can cut the magnetic induction lines of the second ring-shaped shaft 4, and in turn the magnetic field coil 24 generates electric energy and is collected into the power storage device of the mouse, realizing the technical effect of converting kinetic energy into electric energy.

[0054] In the above fact examples one and three, the first groove 21 can weaken the magnetic properties at the position. Therefore, the magnetic attraction on the end surface of the first annular shaft 2 can be evenly distributed on the plurality of first bosses 22. The outer ring wheel 3 is sleeved on the connecting shaft 11; the second annular shaft 4 is arranged at the shaft center of the outer ring wheel 3 and located at the side of the first annular shaft 2. The surface near one end of the second annular shaft 4 is evenly provided with a plurality of second grooves 41 extending away from the shaft center of the second annular shaft 4. The second grooves 41 are formed with second bosses 42 between adjacent two second grooves 41. Similarly, the second groove 41 can weaken the magnetic properties at the position. Therefore, the magnetic attraction on the end surface of the second annular shaft 4 can be evenly distributed on the plurality of second bosses 42. The first boss 22 and the second boss 42 are arranged in one-to-one correspondence by magnetic attraction, and the first boss 22 and the second boss 42 maintain a gap. In some embodiments, the connecting shaft 11 is coaxially provided with a shaft step between the first boss 22 and the second boss 42. The first boss 22 and the second boss 42 maintain a gap and are coaxially connected through the shaft step. In some embodiments, the shaft step is integrally formed with the connecting shaft 11. The shaft step and the connecting shaft 11 are both non-magnetic material structures, which avoid disturbing the magnetic field of the first boss 22 and the second boss 42.

[0055] It can be seen that the first annular shaft 2, the second annular shaft 4 and the outer ring wheel 3 are directly or indirectly sleeved on the connecting shaft 11. When the outer ring wheel 3 is rotated, the second annular shaft 4 is synchronously rotated. At this time, the magnetic attraction between the two magnetic surfaces of the second annular shaft 4 and the first annular shaft 2 close to each other changes in the axial direction. Further, the damping value changes when the outer ring wheel 3 is rotated, thereby producing the light and heavy paragraph feedback of the hand feeling.

[0056] In some embodiments, the connecting shaft 11 is coaxially provided with the first annular shaft 2 and the two second annular shafts 4, and the first annular shaft 2 and the connecting shaft 11 are fixedly connected with the mounting base 1. The two end surfaces of the first annular shaft 2 are evenly provided with a plurality of first grooves 21, and the two first grooves 21 are formed with a first boss 22 therebetween. The two second annular shafts 4 are rotatably arranged on the mounting base 1. The surface of one end of the second annular shaft 4 facing the first boss 22 is evenly provided with a plurality of second grooves 41, and the two second grooves 41 are formed with a second boss 42 therebetween. The two second bosses 42 have a gap between the two ends of the first boss 22, and the first boss 22 and the second boss 42 are arranged in one-to-one correspondence and generate attractive magnetic force.

[0057] Further, the magnetic poles of the first boss 22 and the second boss 42 are opposite. It can be understood that the magnetic poles of the first boss 22 and the second boss 42 are opposite, which can attract each other. The magnetic damping effect between the two is better.

[0058] Further, asFigure 1 , Figure 3 As shown, the second annular shaft 4 is an annular shaft with magnetic attraction. The magnetic field coil 24 is used to adjust the magnetic strength of the first annular shaft 2, or to cut the magnetic induction lines of the second annular shaft 4 in the rotating state, thereby generating electrical energy. This is specifically as described in Embodiments 2 and 3 above.

[0059] Furthermore, such as Figure 3 , Figure 7 As shown, an annular groove 23 is formed on the outer periphery of the first annular shaft 2, and the magnetic field coil 24 is wound around the annular groove 23 in the circumferential direction of the first annular shaft 2. In this embodiment, the annular groove 23 is formed on the outer periphery of the first annular shaft 2, so that the magnetic field coil 24 can be wound in the annular groove 23, and ultimately the outer wall of the first annular shaft 2 can be kept flush, making the overall roller structure more compact and beautiful.

[0060] Furthermore, the magnetic field coil 24 is a copper coil. It is understood that copper coils have excellent conductivity, enabling efficient current transmission and reducing energy loss (such as heat generation). Copper coils can generate strong magnetic fields and are sensitive to electromagnetic interference. They can efficiently cut the magnetic induction lines of the second annular shaft 4.

[0061] Furthermore, such as Figure 5 , Figure 6 and Figure 8 As shown, the number of first grooves 21 is the same as the number of second grooves 41, the size of the first boss 22 is the same as the size of the second boss 42, and the shape of the first boss 22 is the same as the shape of the second boss 42.

[0062] Understandably, in order to make the feedback of the rotation of the damped adjustable roller structure clearer, the number of the first groove 21 is the same as the number of the second groove 41, the size of the first boss 22 is the same as the size of the second boss 42, and the shape of the first boss 22 is the same as the shape of the second boss 42.

[0063] Furthermore, such as Figure 5 , Figure 6 As shown, both the first groove 21 and the second groove 41 are U-shaped grooves.

[0064] In some more preferable embodiments, the first groove 21 and the second groove 41 are both U-shaped grooves. In some other embodiments, the first groove 21 and the second groove 41 can also be configured as V-shaped grooves. Among them, the V-shaped groove can make the boss (the first boss 22 and the second boss 42) present a structure form of wide at the bottom and narrow at the top. This structure design can make the magnetic attraction force on the magnetic attraction end face of the annular shaft (the first annular shaft 2 and the second annular shaft 4) concentrate on the top of the boss (the first boss 22 and the second boss 42) along the slope of the V-shaped groove. Make the feedback between the first annular shaft 2 and the second annular shaft 4 more clear, and the magnetic damping effect between the two is better.

[0065] Further, as shown in Figure 3 、 Figure 4 , the second annular shaft 4 is coaxially provided with an outer ring wheel 3, the outer ring wheel 3 is detachably connected with the second annular shaft 4, the outer ring wheel 3 is a metal wheel, the second annular shaft 4 is provided with a plurality of positioning pins 43, and the second annular shaft 4 is fixedly connected with the outer ring wheel 3 through the positioning pins 43. It can be understood that the mass of the metal wheel is larger, so that the moment of inertia of the outer wheel 32 is larger. Further, the rolling stroke is longer. The second annular shaft 4 is connected with the outer ring wheel 3 through the positioning pins 43, and slipping between the two can be avoided. In some embodiments, the second annular shaft 4 and the outer ring wheel 3 are detachably connected.

[0066] Further, as shown in Figure 3 、 Figure 4 , the outer ring wheel 3 comprises: a grating clamping ring 31 and an outer wheel 32, the grating clamping ring 31 is coaxially arranged with the second annular shaft 4, a plurality of light transmission holes 312 are arranged in the circumferential direction of the grating clamping ring 31, and the extension direction of the light transmission hole 312 is parallel to the axial direction of the grating clamping ring 31; the outer wheel 32 is sleeved on the outer side wall of the grating clamping ring 31; wherein, the grating clamping ring 31 is provided with an avoiding groove 311 at the axial center, and the avoiding groove 311 is used for avoiding the first annular shaft 2 and the second annular shaft 4. The first annular shaft 2 and the second annular shaft 4 are accommodated in the avoiding groove 311 at the axial center of the grating clamping ring 31, which can make the whole rotating wheel structure more compact and have higher integration. Moreover, the wheel structure composed of the first annular shaft 2, the second annular shaft 4 and the grating clamping ring 31 is more reasonable.

[0067] The second aspect of the present application provides a damping adjustment method of the damping adjustable roller structure according to any one of the first aspect, the damping adjustment method comprising the following steps:

[0068] Step one, receiving adjustment instructions of the circuit through two electrodes 241 of the magnetic field coil 24, adjusting the current size and direction of the magnetic field coil 24 on the first annular shaft 2 according to the adjustment instructions, so as to change the magnetic attraction between the first annular shaft 2 and the second annular shaft 4, and further change the damping between the first boss 22 and the second boss 42; wherein the second annular shaft 4 rotates by the driving of the outer ring wheel 3, the first boss 22 is arranged on the first annular shaft 2, and the second boss 42 is arranged on the second annular shaft 4;

[0069] Step two, when the outer ring wheel 3 is rolled by the user, the outer ring wheel 3 drives the second annular shaft 4 to rotate;

[0070] Step three, the first boss 22 on the first annular shaft 2 and the second boss 42 on the second annular shaft 4 are offset by the rotation of the second annular shaft 4, wherein the first boss 22 and the second boss 42 correspond to each other, and the first boss 22 and the second boss 42 attract each other;

[0071] Step four, the magnetic attraction between the first boss 22 and the second boss 42 changes, so that the damping between the first boss 22 and the second boss 42 is generated;

[0072] Step five, adjusting the current size of the magnetic field coil 24 on the first annular shaft 2, so as to increase or decrease the magnetic attraction of the first annular shaft 2, and further increase or decrease the damping between the first boss 22 and the second boss 42. For details, please refer to the above embodiment one, embodiment two and embodiment three.

[0073] The application scheme can be applied to the fields of mouse, keyboard, automobile instrument panel, etc. In the field of mouse, as shown in Figure 1 , Figure 2 , Figure 3 and Figure 4 , the damping-adjustable roller structure of the application scheme is configured as the roller of the mouse. In the fields of keyboard and automobile instrument panel, as shown in Figure 9 , Figure 10 and Figure 11 , the damping-adjustable roller structure of the application scheme can be configured as the volume control roller (also can be the page scrolling control device) of the keyboard or the automobile instrument panel.

[0074] Therefore, the third aspect of the application provides a mouse, which comprises a mouse shell, a circuit board and a damping-adjustable roller structure as described above, a plurality of keys are arranged on the mouse shell; the circuit board is arranged in the mouse shell, and a light emitting element and a light sensitive receiving element are arranged on the circuit board; the damping-adjustable roller structure is arranged in the mouse shell; wherein the light emitting element and the light sensitive receiving element are respectively arranged on both sides of the damping-adjustable roller structure, and correspond to both ends of the light transmission hole 312.

[0075] In some embodiments, the light emitting piece and the light sensitive receiving element are arranged at the same end of the light transmission hole 312. The other end of the light transmission hole 312 is provided with a light reflecting plate, and the light emitting plate is used to reflect the light radiating from the light transmission hole 312 to the light sensitive receiving element. In this way, the technical effect of the roller rolling induction is achieved.

[0076] In summary, the application provides a damping adjustable roller structure and a damping adjustment method. The magnetic field strength of the first annular shaft 2 can be changed by adjusting the current size and direction of the magnetic field coil 24, and then the magnetic attraction force between the first boss 22 and the second boss 42 is adjusted, so that the damping size of the second annular shaft 4 can be adjusted. Specifically, when the second annular shaft 4 is rotated, the damping value of the first annular shaft 2 and the second annular shaft 4 is changed, and the feedback of the light and heavy paragraphs of the hand feeling is generated. At the same time, the kinetic energy of the second annular shaft 4 can be converted into electric energy by cutting the magnetic induction line through the magnetic field coil 24, so as to realize the technical effect of electric energy collection and power generation. It can be applied to the fields of mouse, keyboard, automobile instrument panel, etc.

[0077] Obviously, the above embodiments are only examples for clear illustration, and are not limitations to the embodiments. Based on the above description, other different forms of changes or variations can be made by those skilled in the art. Here, all the embodiments do not need to be exhausted, and the obvious changes or variations still fall within the protection scope of the application.

Claims

1. A damping adjustable roller structure, characterized in that, include: Mounting base; A first annular shaft is fixed on the mounting base. At least one end face of the first annular shaft is provided with a plurality of first grooves, and a first boss is formed between two adjacent first grooves. And at least one second annular shaft, the second annular shaft is rotatably disposed on the mounting base and coaxially disposed with the first annular shaft, and a plurality of second grooves are evenly formed on the surface of the end of the second annular shaft facing the first boss, and a second boss is formed between two adjacent second grooves; The first annular shaft is provided with at least one magnetic field coil, which is used to adjust the magnetic strength of the first annular shaft. The magnetic field coil is provided with at least two electrodes, which are electrically connected to a power storage device. The electrodes are connected to an external circuit through the power storage device. There is a gap between the first protrusion and the second protrusion. The first protrusion and the second protrusion are arranged in a one-to-one correspondence and generate a magnetic attraction force. The second annular shaft is an annular shaft with magnetic attraction force. The magnetic induction lines of the second annular shaft in the rotating state are cut to generate electrical energy, which is collected in the power storage device of the mouse. The first annular shaft has an annular groove on its outer circumference. The magnetic field coil is wound around the annular groove in the circumferential direction of the first annular shaft. An outer ring wheel is coaxially arranged on the second annular shaft. The outer ring wheel is detachably connected to the second annular shaft. The outer ring wheel is a metal rim. The second annular shaft is provided with a plurality of positioning pins. The second annular shaft is fixedly connected to the outer ring wheel through the positioning pins. When the outer ring wheel is rolled by the user, the outer ring wheel drives the second annular shaft to rotate.

2. The damping adjustable roller structure according to claim 1, characterized in that, At least one of the first annular shaft and the second annular shaft is an annular shaft with magnetic attraction.

3. The adjustable damping roller structure according to claim 1, characterized in that, The magnetic field coil is a copper coil.

4. The damping adjustable roller structure according to claim 1, characterized in that, The number of the first groove is the same as the number of the second groove, the size of the first boss is the same as the size of the second boss, and the shape of the first boss is the same as the shape of the second boss.

5. The damping adjustable roller structure according to claim 1, characterized in that, Both the first groove and the second groove are U-shaped grooves.

6. The damping adjustable roller structure according to claim 1, characterized in that, The outer ring wheel includes: A grating clip ring is coaxially arranged with the second annular shaft. The grating clip ring has a plurality of light-transmitting holes in its circumferential direction, and the extending direction of the light-transmitting holes is parallel to the axial direction of the grating clip ring. And an outer ring, which is fitted onto the outer side wall of the grating clip ring; The grating clip ring has a clearance groove at its center, which is used to avoid the first annular shaft and the second annular shaft.

7. A damping adjustment method based on the damping-adjustable roller structure according to any one of claims 1-6, characterized in that, The damping adjustment method includes the following steps: The adjustment command is received by the two electrodes of the magnetic field coil. The magnitude and direction of the current in the magnetic field coil on the first annular shaft are adjusted according to the adjustment command to change the magnetic attraction between the first annular shaft and the second annular shaft, thereby changing the damping between the first boss and the second boss. The second annular shaft is rotated by the drive of the outer ring wheel. The first boss is set on the first annular shaft and the second boss is set on the second annular shaft. When the outer ring wheel is rolled by the user, the outer ring wheel drives the second annular shaft to rotate; The rotation of the second annular shaft causes an offset between the first boss on the first annular shaft and the second boss on the second annular shaft, wherein the first boss and the second boss correspond one-to-one and attract each other. By changing the magnetic attraction between the first boss and the second boss, damping is generated between the first boss and the second boss. Adjusting the magnitude and direction of the current in the magnetic field coil on the first annular shaft increases or decreases the magnetic attraction force of the first annular shaft, thereby increasing or decreasing the damping between the first boss and the second boss.

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