Moving magnet type mouse wheel mechanism

Abstract

The embodiment of the utility model provides a moving magnet type mouse wheel mechanism, which comprises a bearing unit, a wheel and a magnetic conductive piece, the bearing unit is provided with a first mounting piece and at least one second mounting piece, the wheel is arranged on the first mounting piece and can rotate, a plurality of magnetic poles are radially and sequentially distributed on the circumference of the wheel, and the polarities of the adjacent magnetic poles are opposite to each other; the magnetic conductive part is arranged on the second installation part, the magnetic conductive part faces the rolling wheel and is separated from the rolling wheel by a certain distance, the magnetic conductive part faces the magnetic poles in a non-contact mode, the size of a body of the magnetic conductive part is smaller than the size of two adjacent magnetic poles, and when the rolling wheel rotates, intermittent strong and weak magnetic restoring force can be generated between the magnetic poles and the magnetic conductive part. The joint of two adjacent magnetic poles of the roller is located at the extending position of the center line of the magnetic conductive piece.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of mouse, in particular to a dynamic magnetic mouse scroll wheel mechanism. BACKGROUND

[0002] Mouse is used to control the cursor on the screen, and cooperate with the computer to perform corresponding operation. In addition to the basic left and right keys as input, some mice also have auxiliary control scroll wheel. The scroll wheel is rotated to quickly browse the webpage or assist the operation of the cursor. In order to increase the accuracy of the scroll wheel rotation, the mouse is provided with a mechanical spring sheet to generate resistance to the scroll wheel, so that the scroll wheel generates intermittent strong and weak gear feeling when rotating. However, such structure of the scroll wheel usually only provides one operation mode, for example, it can only be used for line by line browsing. During the process, the scroll wheel is limited to be rotated at equal angles and small angles. If the user has other operation modes, the mechanical spring sheet design cannot meet the requirements. For example, if the user wants to quickly browse the webpage, the scroll wheel must be rotated by half a circle or at a large angle. Or in the fast sliding of electronic sports, the scroll wheel must be rotated fast, at a large angle or more than one circle, which is called flywheel rotation. In order to meet the above two operation modes, other electric control and additional mechanical components must be used, which makes the internal structure of the mouse complex and increases the cost. In order to solve the above problems, the present application designs a non-contact dynamic magnetic mouse scroll wheel mechanism, so that the operator can adjust the scroll wheel according to different operation modes. CONTENT OF THE UTILITY MODEL

[0003] The main purpose of the present application is to provide a dynamic magnetic mouse scroll wheel mechanism, in particular a non-contact scroll wheel braking mode. When the plurality of magnetic poles distributed around the circumference of the scroll wheel move relative to the magnetic guide, the magnetic restoring force is generated. The magnetic restoring force is converted into intermittent resistance when the scroll wheel rotates. At the same time, the influence of the magnetic force on the rotation of the scroll wheel is reduced. Under the condition that the operator corresponds to different operation modes, the scroll wheel meets the required rotation mode, and the convenience of operation is improved.

[0004] In order to achieve the above purpose, the present application adopts the following technical scheme:

[0005] The present application is a dynamic magnetic mouse scroll wheel mechanism, which comprises a bearing unit, a scroll wheel and a magnetic guide. The bearing unit is provided with a first mounting member and at least one second mounting member. The scroll wheel is arranged on the first mounting member and can rotate. The circumference of the scroll wheel is radially distributed with a plurality of magnetic poles, and the adjacent magnetic poles are opposite in polarity. The magnetic guide is arranged on the second mounting member. The magnetic guide faces the scroll wheel and is separated by a distance, so that the magnetic guide faces the magnetic pole in a non-contact manner. The size of the body of the magnetic guide is smaller than the total size of two adjacent magnetic poles. When the scroll wheel rotates, intermittent strong and weak magnetic restoring force can be generated between the magnetic pole and the magnetic guide. In the state that the scroll wheel stops without external force, the intersection of the two adjacent magnetic poles of the scroll wheel is located at the extension position of the center line of the magnetic guide.

[0006] As one of the preferred embodiments, the roller further comprises a ring-shaped magnet member, which is arranged on the circumferential periphery of the roller, and the ring-shaped magnet member has a plurality of magnetic poles with a radial polarity distribution, and adjacent magnetic poles have opposite polarities.

[0007] As one of the preferred embodiments, the second mounting member is located in the radial direction of the roller, so that the magnetic conducting member faces the magnetic poles on the circumferential periphery of the roller in a non-contact manner.

[0008] As one of the preferred embodiments, the roller further comprises a ring-shaped magnet member, which is arranged on the axial side wall of the circumferential periphery of the roller, and the ring-shaped magnet member has a plurality of magnetic poles with an axial polarity distribution, and adjacent magnetic poles have opposite polarities.

[0009] As one of the preferred embodiments, the second mounting member fixes the magnetic conducting member, so that the magnetic conducting member is arranged in parallel with the axial direction of the roller and faces the magnetic poles distributed on the axial side wall in a non-contact manner.

[0010] As one of the preferred embodiments, the roller is provided with the ring-shaped magnet member on both of the opposite axial side walls, and the two second mounting members respectively fix the magnetic conducting members and vertically support the bearing unit, so that the two magnetic conducting members are symmetrically distributed on both sides of the axial direction of the roller and face the magnetic poles in a non-contact manner.

[0011] Compared with the prior art, the application provides a non-contact moving-magnet type mouse roller mechanism, which uses a plurality of magnetic poles distributed on the circumferential periphery of the roller to cooperate with the magnetic conducting member in a non-contact manner, so that when the operator rotates the roller, the intermittent strong and weak magnetic restoring force between the magnetic poles and the magnetic conducting member allows the operator to feel the intermittent tight and loose gear feeling or the semi-flywheel feeling of fast rotation for several rounds, thereby meeting the diverse choices of the operator in using the mouse. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is a perspective view of the first embodiment of the application.

[0013] Figure 2 It is a side view of the first embodiment of the application.

[0014] Figure 3 It is a force action schematic diagram when the first embodiment of the application operates.

[0015] Figure 4 It is a perspective view of the second embodiment of the application.

[0016] Figure 5 It is a top view of the second embodiment of the application.

[0017] BRIEF DESCRIPTION OF DRAWINGS:

[0018] 10: roller;

[0019] 11: magnetic pole;

[0020] 12: ring-shaped magnet piece;

[0021] 13: axial side wall;

[0022] 20: magnetic conducting piece;

[0023] 30: bearing unit;

[0024] 31: first mounting piece;

[0025] 311: support frame;

[0026] 312: rotating shaft;

[0027] 32: second mounting piece;

[0028] A: body size;

[0029] B: magnetic pole size;

[0030] N: magnetic pole;

[0031] S: magnetic pole;

[0032] τ: resisting torque;

[0033] μ: dynamic friction coefficient of shaft-bearing;

[0034] Fz: magnetic restoring force;

[0035] Fy: magnetic attraction force;

[0036] γ1: radius of shaft; γ2: radius of roller. DETAILED DESCRIPTION

[0037] The technical solutions of the present application will be described clearly and completely in combination with specific embodiments and drawings. It should be noted that when a component is referred to as "mounted on or fixed on" another component, it means that it can be directly on the other component or there can be a middle component. When a component is referred to as "connected to" another component, it means that it can be directly connected to the other component or there can be a middle component. In the shown embodiments, the directions such as up, down, left, right, front and back are relative, and are used to explain the structure and movement of different components. When the components are in the positions shown in the drawings, these directions are appropriate. However, if the positions of the components change, it is considered that these directions will also change accordingly.

[0038] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0039] Most of the mouse currently is provided with a scroll wheel for the operator to touch, in order to quickly browse the web page or move in a large range, the moving magnetic mouse scroll wheel mechanism of the present application is such structure, because the design of the present application focuses on providing the operator with a variety of different operating feelings, such as [gear feeling], [half flywheel feeling] and [flywheel feeling], therefore the subsequent description focuses on the structural characteristics and why such feelings can be produced, the internal electric control or sensing method of the mouse, because the prior art is adopted, therefore this part is not described much.

[0040] Then the terms used herein are explained: [gear feeling]: when the operator touches the mouse scroll wheel, the operator feels the intermittent tightness of the touch. [Flywheel feeling]: when the operator touches the mouse scroll wheel, the scroll wheel can rotate according to its inertia and without resistance, so that the operator feels the fast rotation of several circles. [Half flywheel feeling]: when the operator pushes the mouse scroll wheel, the front scroll wheel rotates half a circle or 1-3 circles according to its inertia, and then stops immediately due to force balance.

[0041] As shown in Figure 1 and Figure 2 , it is the perspective view and side view of the first embodiment of the present application. The moving magnetic mouse scroll wheel mechanism of the present application comprises a scroll wheel 10, a magnetic guide 20 and a bearing unit 30, the bearing unit 30 is provided with a first mounting part 31 and at least one second mounting part 32, the scroll wheel 10 is arranged on the first mounting part 31 and can rotate, the circumference of the scroll wheel 10 is radially distributed with a plurality of magnetic poles 11, and the adjacent magnetic poles are opposite in polarity; the magnetic guide 20 is arranged on the second mounting part 32, so that the magnetic guide 20 faces the scroll wheel 10 with a distance, the magnetic guide 20 faces the magnetic poles 11 on the circumference of the scroll wheel 10 without contact, the size A of the body of the magnetic guide 20 must be smaller than the total of the size B of two adjacent magnetic poles, that is, A<2*B, when the scroll wheel 10 rotates, the magnetic poles 11 and the magnetic guide 20 can generate intermittent strong and weak magnetic restoring force, thereby allowing the operator to feel the gear feeling or half flywheel feeling.

[0042] Then the structure of each component is described in detail:

[0043] The scroll wheel 10 is exposed to the outside of the mouse structure, and the scroll wheel 10 has a plurality of magnetic poles 11 radially distributed on the circumference thereof. In the embodiment, an annular magnet piece 12 is arranged on the circumference of the scroll wheel 10. The annular magnet piece 12 is pressed into a required annular size by a specific material, and is magnetized in a radial direction, so that the annular magnet piece 12 has a plurality of magnetic poles 11 with polarities radially distributed. Therefore, the scroll wheel 10 has the N or S pole with the strongest magnetism at the position of the magnetic pole 11 on the inner or outer ring surface thereof, and the adjacent magnetic poles 11 have opposite polarities. In addition, the scroll wheel 10 has a plurality of magnetic poles 11 on the circumference thereof, and a plurality of magnets can also be arranged on the circumference of the scroll wheel 10 to form a plurality of magnetic poles. In addition, a soft rubber layer can be additionally arranged on the circumference of the scroll wheel 10 to make the scroll wheel 10 more comfortable to touch and rotate. However, the soft rubber layer will not weaken the magnetic force or the magnetic restoring force.

[0044] The bearing unit 30 is responsible for mounting the scroll wheel 10 and the magnetic guide piece 20 and keeping a distance between them, so that the magnetic guide piece 20 faces the magnetic pole 11 without contacting the magnetic pole 11. The bearing unit 30 is used to bear the scroll wheel 10 by the first mounting piece 31, which is a bearing support set in the embodiment. The first mounting piece 31 includes a support frame 311 arranged on the bearing unit 30 and a rotating shaft 312 arranged on the support frame 311. The rotating shaft 312 is mounted on the bearing at the center of the scroll wheel 10, so that the scroll wheel 10 can rotate smoothly. The magnetic guide piece 20 is fixed on the second mounting piece 32 in a sheet shape, and the second mounting piece 32 is vertically arranged on the bearing unit 30, so that the center line of the magnetic guide piece 20 is at the same height as the center line of the scroll wheel 10. Therefore, the magnetic guide piece 20 is also located in the radial direction of the scroll wheel 10.

[0045] The application uses the magnetic poles 11 of the scroll wheel 10 and the magnetic guide piece 20 to generate intermittent magnetic restoring force during rotation, so that the operator can feel the gear feeling or half flywheel feeling during the rotation of the scroll wheel 10. Therefore, the size A of the body of the magnetic guide piece 20 must be smaller than the total of the size B of two magnetic poles, that is, A < 2*B. In the state of the scroll wheel 10 without external force, the magnetic guide piece 20 is affected by the balance of the magnetic restoring force, so that the center line of the magnetic guide piece 20 is located at the intersection of two adjacent magnetic poles 11. During the rotation of the scroll wheel 10, the magnetic pole 11 generates a magnetic restoring force in the opposite direction to the magnetic guide piece 20. The magnetic restoring force is the resistance, so that the operator can feel the gear feeling or half flywheel feeling.

[0046] In the above embodiment, because the polarities of the adjacent magnetic poles 11 are opposite to each other, the adjacent magnetic attraction forces can even cancel each other to become zero. At this time, the scroll wheel 10 can roll under the condition of zero positive force and maximum magnetic restoring force, so that the best user experience is obtained. The subsequent embodiments are based on the above embodiment, and the operation principle of the application is described as follows:

[0047] For example, the scroll wheel 10 is rotated in the clockwise direction, and the magnetic pole 11 on the left side of the scroll wheel 10 is the N pole. The magnetic guide piece 20 is attracted to the N pole, so that the magnetic guide piece 20 is located at the intersection of the N pole and the S pole on the right side of the scroll wheel 10. At this time, the magnetic guide piece 20 is affected by the balance of the magnetic restoring force, so that the center line of the magnetic guide piece 20 is located at the intersection of the N pole and the S pole. During the rotation of the scroll wheel 10, the magnetic pole 11 generates a magnetic restoring force in the opposite direction to the magnetic guide piece 20. The magnetic restoring force is the resistance, so that the operator can feel the gear feeling or half flywheel feeling. Figure 3As shown, in the moving magnet mouse scroll wheel mechanism of the present application, the magnetic poles 11 of the annular magnet 12 will generate a magnetic restoring force Fz and a magnetic attraction force Fy on the magnetic conducting member 20. The magnetic attraction force Fy will generate a friction force μFy on the rotating shaft. According to the following formula, the resisting torque τ formed by the magnetic restoring force and the friction force when the scroll wheel 10 rotates can be calculated as follows:

[0048] τ = μFy.γ1 + Fz.γ2 ≒ Fz.γ2.

[0049] Wherein, τ represents the resisting torque; μ represents the dynamic friction coefficient of the shaft-bearing; Fy represents the magnetic attraction force, i.e. the magnetic attraction force of the magnet member on the magnetic conducting member; Fz represents the magnetic restoring force; γ1 represents the radius of the shaft; and γ2 represents the radius of the scroll wheel.

[0050] When the scroll wheel 10 rotates, the magnetic restoring force Fz and the friction force μFy generated by the magnetic attraction force Fy will jointly form the resisting torque τ. The design of the present application can minimize the magnetic attraction force between the magnetic conducting member 20 and the annular magnet 12, and increase the magnetic restoring force Fz. As the magnetic attraction force Fy is small, the friction force when the scroll wheel 10 rotates is also small. The magnetic restoring force Fz is large, and the relative rotating resistance is also increased. Therefore, the gear feeling of the operator when rotating the scroll wheel 10 is very clear. That is, the design of the present device can produce a very clear gear feeling under the condition of very small friction force. In addition, due to the small friction force, when a certain torque is applied, the rotating angle of the scroll wheel 10 can reach half a circle or a large angle, so that the required half flywheel feeling is easily generated. The present application can provide two different operating feelings under a single structure, which is also the focus of the present application.

[0051] As shown in FIGS. Figure 4 and Figure 5 are the perspective view and top view of the second embodiment of the present application. The present embodiment still includes the scroll wheel 10, the magnetic conducting member 20 and the bearing unit 30. The difference is that the plurality of magnetic poles 11 are distributed in a radial manner along the circumference of the scroll wheel 10, but the plurality of magnetic poles 11 are distributed in a ring shape on the axial side wall 13 of the circumference. The scroll wheel 10 still includes an annular magnet 12, but the annular magnet 12 is arranged on the axial side wall 13 of the circumference of the scroll wheel 10. The annular magnet 12 is made of a specific material into a ring of a required size, and is axially magnetized so that the annular magnet 12 has a plurality of magnetic poles 11 with polarities in the axial direction in a radial distribution. Therefore, the magnetic poles 11 on the two axial end surfaces of the annular magnet 12 are the N poles or S poles with the strongest magnetism, and the adjacent magnetic poles 11 have opposite polarities.

[0052] In the present embodiment, the roller 10 is provided with annular magnet members 12 on both axially opposite side walls 13, and the bearing unit 30 is also provided with two second mounting members 32, which respectively fix the magnetic conductive members 20, so that the two magnetic conductive members 20 are symmetrically distributed on both axially opposite sides of the roller 10 and face the magnetic poles 11 in a non-contact manner. In this way, the body size of the magnetic conductive member 20 must be smaller than the total size of the two magnetic poles. Thus, the moving-magnetic mouse roller mechanism of the present application can form a resistance and a thrust when the operator rotates the roller 10, so that the operator can feel the gear feeling or half-flying wheel feeling transmitted by the roller 10.

[0053] In summary, the moving-magnetic mouse roller mechanism of the present application forms a plurality of magnetic poles 11 in a radial manner by the annular magnet members 12 on the circumference of the roller 10, and makes the magnetic conductive members 20 face the magnetic poles 11 of the roller 10 at a distance. In this way, the intermittent strong and weak magnetic recovery can be generated when the roller rotates, so that the operator can feel different strong and weak gear feeling or half-gear feeling when rotating the roller 10.

[0054] The above description is only the preferred embodiment of the present application, and is not intended to limit the scope of the present application. Any equivalent changes and modifications made within the scope of the present application are also covered by the present application.

Claims

1. A moving magnet mouse wheel mechanism, characterized by, Comprising: a bearing unit, a roller, and a magnetic guide, the bearing unit is provided with a first mounting member and at least a second mounting member, the roller is arranged on the first mounting member and can rotate, the circumference of the roller is radially arranged with a plurality of magnetic poles, and adjacent magnetic poles have opposite polarities; the magnetic guide is arranged on the second mounting member, so that the magnetic guide faces the roller with a distance, the magnetic guide faces the magnetic poles in a non-contact manner, the size of the body of the magnetic guide is smaller than the total size of two adjacent magnetic poles, and the magnetic recovery force between the magnetic poles and the magnetic guide can be generated intermittently when the roller rotates, and in the state of stopping of the roller without external force, the intersection of two adjacent magnetic poles of the roller is located at the extension position of the center line of the magnetic guide.

2. The moving-magnet mouse wheel mechanism of claim 1, wherein The roller further comprises: a ring-shaped magnetic member, the ring-shaped magnetic member is arranged on the outer periphery of the circumference of the roller, the ring-shaped magnetic member has a plurality of magnetic poles with radial polarity distribution, and adjacent magnetic poles have opposite polarities.

3. The moving-magnet mouse wheel mechanism of claim 1, wherein The second mounting member is located in the radial direction of the roller, so that the magnetic guide faces the magnetic poles on the circumference of the roller in a non-contact manner.

4. The moving-magnet mouse wheel mechanism of claim 1, wherein The roller further comprises: a ring-shaped magnetic member, the ring-shaped magnetic member is arranged on the axial side wall of the circumference of the roller, the ring-shaped magnetic member has a plurality of magnetic poles with axial polarity distribution, and adjacent magnetic poles have opposite polarities.

5. The moving-magnet mouse wheel mechanism of claim 4, wherein, The second mounting member fixes the magnetic guide, so that the magnetic guide is arranged in parallel with the axial direction of the roller and faces the magnetic poles distributed on the axial side wall in a non-contact manner.

6. The moving-magnet mouse wheel mechanism of claim 4, wherein, The roller is provided with the ring-shaped magnetic member on the two opposite axial side walls, the two second mounting members respectively fix the magnetic guide and stand the bearing unit, so that the two magnetic guides are symmetrically distributed on the two sides of the axial direction of the roller and face the magnetic poles in a non-contact manner.

Images