Mouse encoder and mouse

Abstract

Disclosed in the present application are a mouse encoder and a mouse. The mouse encoder comprises: a shell, which is provided with a mounting cavity; a rolling bearing component, wherein the rolling bearing component is arranged in the mounting cavity, and an outer ring of the rolling bearing component is fixed to an inner wall surface of the mounting cavity; a grating component, wherein the grating component comprises a rotating cylinder and a grating disk, which is sleeved outside the rotating cylinder, the grating disk is provided with a plurality of light-transmitting slots, which are circumferentially distributed at intervals, and an inner ring of the rolling bearing component is sleeved and fixed on the rotating cylinder; and a circuit board, which is provided with an optical emitter and an optical receiver and is electrically connected to a mouse mainboard, wherein the optical emitter and the optical receiver are in communication with each other so as to form an optical path therebetween, and when the rotating cylinder rotates, the optical path can be blocked or exposed by means of the grating disk. In the mouse encoder provided in the present application, the grating component is fixed on the inner ring of the rolling bearing component, and thus pushes the rolling bearing component to rotate, thereby achieving a synchronous rotational speed with the rolling bearing component, such that the coefficient of friction is optimized and a silent effect is achieved.

Description

Mouse encoder and mouse Technical Field

[0001] The present application relates to the field of mice, and in particular to a mouse encoder and a mouse. Background Art

[0002] With the widespread use of computers, the mouse, a crucial input device, has become a staple of modern computers. Its basic form is a combination of left and right buttons, with a central scroll wheel for scrolling pages. The scroll wheel is connected to a mouse encoder, which drives its rotation. Currently, there are two types of mouse encoders: optical encoders and mechanical encoders.

[0003] The grating encoder uses infrared rays to send and receive signals, and there is no substantial contact when the scroll wheel is working, so it has good stability and long life. However, due to its certain requirements for mouse master programming, only a few people use grating scroll wheels at present.

[0004] The other is the mechanical encoder, which is currently widely used on mice. Compared with the grating structure scroll wheel, the mechanical encoder has the advantages of good mechanical scale feel, simple structure, and easy main control programming. Therefore, most mice currently use mechanical encoder structure to make mouse encoders.

[0005] However, with the emergence of a wide variety of mouse types, the emergence of the shuttle wheel (a form of mouse encoder) has enabled the mouse to perform more and more functions. However, due to its complex structure and high cost, it can only be used on high-end mice. Mechanical encoders cannot achieve the same fast rotation as the shuttle due to the limitations of their working principles.

[0006] Since the grating encoder uses a contactless working principle, it can theoretically achieve rapid rotation of the scroll wheel. However, the grating encoder is subject to the limitations of the encoder's own structure and space, and cannot overcome the friction between the grating and surrounding parts. As a result, the mouse encoder cannot achieve an undamped and silent scrolling effect, which directly affects the user experience. Application Contents

[0007] The primary purpose of this application is to provide a mouse encoder that cleverly combines rolling bearings with a grating encoder to create a simple structure, excellent stability, long service life, low damping, and quiet operation. This grating encoder is comparable to the feel and service life of high-end mouse shuttles, greatly satisfying the needs of computer mouse users. It also addresses the technical issues of high damping and high scrolling noise associated with grating encoders.

[0008] To achieve the above objectives, the present application proposes a mouse encoder comprising:

[0009] A housing, wherein the housing is provided with a mounting cavity, and an end surface of the housing is provided with a connecting hole for connecting to a rotating shaft of a mouse wheel, wherein the connecting hole is in communication with the mounting cavity;

[0010] A rolling bearing component, wherein the rolling bearing component is disposed in the mounting cavity and an outer ring of the rolling bearing component is fixed to an inner wall surface of the mounting cavity;

[0011] A grating component, comprising a rotating cylinder and a grating disk sleeved on the outside of the rotating cylinder, the grating disk having a plurality of light-transmitting grooves spaced apart along the circumference, the rolling bearing component sleeved and fixed on the rotating cylinder, the axis of the connecting hole, the axis of the rotating cylinder, and the axis of the rolling bearing component all lying on the same straight line;

[0012] A circuit board is provided in the housing, the circuit board is electrically connected to a light emitter and a light receiver, and the circuit board is used to be electrically connected to the mainboard of the mouse. The light emitter and the light receiver are electrically connected to form a light path. When the rotating cylinder rotates, the grating disk is driven by the rotating cylinder and can block or expose the light path.

[0013] In some embodiments, the grating component further includes a connecting platform arranged radially outward from the outer wall of the rotating cylinder, the connecting platform is close to the side wall of the rolling bearing component and is in contact with the end face of the inner ring of the rolling bearing component, the connecting platform is away from the side wall of the rolling bearing component and is connected to the grating disk, and the diameter of the connecting platform is larger than the outer diameter of the inner ring of the rolling bearing component and smaller than the inner diameter of the outer ring of the rolling bearing component, so as to ensure that the grating component is only fixed on the inner ring of the rolling bearing component and does not contact the outer ring of the rolling bearing component and other assembly parts.

[0014] In some embodiments, the shell includes a mounting shell and a fixed shell arranged at intervals, the mounting shell includes a mounting plate, the mounting plate is provided with a mounting portion protruding in a direction away from the fixed shell, the mounting cavity is provided in the mounting portion, and the connecting hole is provided on the end surface of the mounting portion away from the fixed shell.

[0015] In some embodiments, the mounting shell further comprises buckles provided on both sides and / or the bottom of the mounting shell, the buckles being engaged with corresponding bosses on the fixing shell; and / or,

[0016] The housing further comprises an assembly cavity communicated with the installation cavity. The grating disk is located in the assembly cavity. A portion of the rotating cylinder is located in the assembly cavity, and another portion is located in the installation cavity.

[0017] In some embodiments, a rotating space is formed inside the fixed shell, and the grating disk is rotatably disposed in the rotating space; a light-transmitting cavity is formed at the lower part of the fixed shell, and the light-transmitting cavity is communicated with the rotating space, and the light emitter and the light receiver are both disposed in the light-transmitting cavity and on both sides of the light-transmitting groove.

[0018] In some embodiments, a communicating hole is provided on an end surface of the fixed shell facing away from the mounting shell, the communicating hole is connected to the rotating space, and the communicating hole is concentrically arranged with the connecting hole.

[0019] In some embodiments, the mounting shell is provided with a mounting hole, and the side wall of the fixed shell facing the mounting shell is provided with a mounting post adapted to the mounting hole;

[0020] And / or, the light-transmitting cavity is connected to the connecting hole.

[0021] In some embodiments, the radial dimension of the connecting hole is greater than or equal to the radial dimension of the inner ring of the rolling bearing component, so that the mounting portion avoids the end face of the inner ring facing away from the fixed shell; the radial dimension of the connecting hole is less than or equal to the radial dimension of the outer ring of the rolling bearing component, so that the end face of the outer ring adjacent to the connecting hole abuts against the inner side wall of the mounting cavity.

[0022] In some embodiments, the grating disk includes a connecting disk and a transparent disk, wherein the connecting disk is disposed on the rotating cylinder and can rotate with the rotating cylinder, the transparent disk extends axially from the outer edge of the connecting disk in a direction away from the rolling bearing component, and the transparent grooves are arranged at intervals on the transparent disk;

[0023] And / or, the rotating cylinder is detachably connected to the grating disk.

[0024] In some embodiments, the mouse encoder also includes a fixing plate, which is arranged parallel to the shell, and the circuit board is arranged between the shell and the fixing plate. The fixing plate is fastened to the shell to clamp at least part of the circuit board between the two.

[0025] In some embodiments, the optical transmitter and the optical receiver are disposed on a surface of the circuit board facing the housing;

[0026] The shell has a rotating space for the grating disk to rotate. A avoidance hole is opened on the side wall of the shell where the circuit board is installed. The avoidance hole is connected to the rotating space. The light emitter and the light receiver cooperate with the grating disk through the avoidance hole.

[0027] In some embodiments, the circuit board is a complete board, and the circuit board blocks the avoidance hole; or,

[0028] A first through hole is opened on the circuit board, the circuit board covers the avoidance hole, and the fixing plate blocks the first through hole.

[0029] In some embodiments, a first through hole is provided on the circuit board, and a second through hole is provided on the fixed plate corresponding to the first through hole. The first through hole and the second through hole are connected to the rotating space and the mounting cavity through the avoidance hole, so that the rotating axis of the mouse wheel can be connected to the end of the rotating cylinder away from the connecting hole through the first through hole, the second through hole, and the avoidance hole.

[0030] In some embodiments, the circuit board is a flexible circuit board, which includes a board body and a flexible wire array connected to the board body. The end of the flexible wire array away from the board body is used to plug into the main board, and the board body is clamped between the fixed plate and the shell.

[0031] In some embodiments, the plate body has a first plate surface facing the housing and a second plate surface facing the fixing plate, the first plate surface is in contact with the surface of the housing, and the second plate surface is in contact with the plate surface of the fixing plate; and / or,

[0032] One end of the flexible wire array is connected to the connecting end of the plate body, and a relief notch is provided on the fixing plate at a position corresponding to the connecting end, and the relief notch is used for allowing the flexible wire array to pass through.

[0033] In some embodiments, fasteners are provided on both sides of the fixing plate, and locking protrusions are provided on both sides of the shell corresponding to the fasteners, and the fasteners are engaged with the locking protrusions.

[0034] In some embodiments, the housing includes a mounting shell and a fixing shell spaced apart from each other, the mounting shell further including buckles provided on both sides of the mounting shell, the buckles being engaged with corresponding bosses on the fixing shell;

[0035] The locking protrusions and the bosses are arranged along the height direction of the fixing shell, and the buckling positions and the fasteners are staggered.

[0036] In some embodiments, a first guiding slope is formed on a side of the boss facing the mounting shell, and the first guiding slope is used to guide the buckle position to buckle with the boss; and / or,

[0037] A second guiding slope is formed on one side of the locking convex surface facing the fixing plate, and the second guiding slope is used to guide the fastener to engage with the locking convex surface; and / or,

[0038] Two sides of the fixed shell are formed with recessed grooves, the latching protrusions are located in the recessed grooves, and the fasteners are received in the recessed grooves after being engaged with the latching protrusions; the mounting shell includes a mounting plate and a covering side wall extending from the mounting plate to the fixed shell, the latching position is formed on the covering side wall; after the latching position is engaged with the boss, the covering side wall covers both sides of the fixed shell and covers the recessed grooves.

[0039] In some embodiments, a positioning column is provided on the side of the shell facing the circuit board, a first positioning hole is formed on the circuit board corresponding to the positioning column, and a second positioning hole is formed on the fixing plate corresponding to the positioning column, and the first positioning hole and the second positioning hole are sleeved on the positioning column.

[0040] In addition, the present application also provides a mouse, comprising a mouse encoder as in any of the above embodiments.

[0041] In the technical solution of the present application, in a mouse assembly embodiment, one end of the mouse wheel shaft is inserted into the rotating cylinder of the grating component of the new mouse encoder, and the mouse wheel is manually turned to generate a force to drive the grating component to rotate (because the rotating shaft of the mouse wheel is plugged into the rotating cylinder). Since the grating component is fixedly connected to the inner ring of the rolling bearing component, the inner ring of the rolling bearing component is pushed to rotate synchronously with the grating disk, thereby greatly reducing the friction force that needs to be overcome when the mouse wheel is scrolled. While achieving a synchronous rotation speed of the grating component and the mouse wheel, it reduces the friction coefficient of the mouse wheel rolling and achieves a silent effect, allowing the user to experience the rapid rotation of the mouse wheel without damping. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0043] FIG1 is a schematic structural diagram of a mouse encoder according to an embodiment of the present application;

[0044] FIG2 is a schematic structural diagram of a mouse encoder according to an embodiment of the present application from another perspective;

[0045] FIG3 is a schematic diagram of an exploded structure of an embodiment of the mouse encoder in FIG1 ;

[0046] FIG4 is a schematic structural diagram of FIG3 from another perspective;

[0047] FIG5 is a schematic structural diagram of an embodiment of a fixed housing of a mouse encoder of the present application;

[0048] FIG6 is a schematic diagram of the internal structure of an embodiment of the mouse encoder in FIG1 ;

[0049] FIG7 is a schematic structural diagram of another embodiment of the mouse encoder of the present application;

[0050] FIG8 is a schematic structural diagram of FIG7 from another perspective;

[0051] FIG9 is a schematic diagram of an exploded structure of an embodiment of the mouse encoder in FIG7 ;

[0052] FIG10 is a schematic structural diagram of FIG9 from another perspective;

[0053] FIG. 11 is a schematic diagram of the internal structure of an embodiment of the mouse encoder in FIG. 7 .

[0054] Explanation of the accompanying symbols: 10, shell; 11, mounting shell; 111, mounting plate; 112, mounting portion; 113, mounting cavity; 114, buckle position; 115, mounting hole; 116, covering side wall; 12, fixed shell; 121, rotating space; 122, light-transmitting cavity; 123, boss; 125, connecting hole; 126, mounting column; 127, positioning column; 128, card convex; 129, supporting portion; 12a, fixing foot; 12b, plug-in structure; 12c, supporting structure; 12d, avoidance hole; 12e, first guide slope; 12f, second guide slope; 12g, sink; 13, connecting hole; 20, rolling Bearing component; 21. Outer ring; 22. Inner ring; 30. Grating component; 31. Rotating cylinder; 32. Grating disk; 321. Connecting disk; 322. Transparent optical disk; 33. Transparent slot; 34. Connecting platform; 40. Circuit board; 41. Light emitter; 42. Light receiver; 44. First positioning hole; 43. Board body; 431. First board surface; 432. Second board surface; 45. Flexible wire array; 46. First through hole; 100. Mouse encoder; 200. Mouse wheel; 210. Rotating shaft; 500. Fixing plate; 510. Second through hole; 520. Avoidance gap; 530. Fastener; 550. Second positioning hole.

[0055] The realization of the objectives, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0056] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0057] It should be noted that all directional indications in the embodiments of the present application (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0058] In addition, the terms "first," "second," and so on, used in this application are for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly specifying the number of the technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0059] Moreover, the technical solutions between the various embodiments of the present application can be combined with each other, but they must be based on the fact that ordinary technicians in this field can implement them. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0060] The present application provides a mouse encoder 100 .

[0061] As shown in Figures 1-6, the mouse encoder 100 provided in the embodiment of the present application includes a housing 10, the housing 10 having a mounting cavity 113, and an end surface of the housing 10 having a connecting hole 13 for connecting to the rotating shaft 210 of the mouse wheel 200, the connecting hole 13 being in communication with the mounting cavity 113;

[0062] The rolling bearing component 20 is disposed in the mounting cavity 113, and the outer ring 21 of the rolling bearing component 20 is fixed to the inner wall surface of the mounting cavity 113; the outer wall surface of the outer ring 21 is in contact with the inner wall surface of the mounting cavity 113, and the outer ring 21 is fixed in the mounting cavity 113;

[0063] The grating component 30 includes a rotating cylinder 31 and a grating disk 32 sleeved on the outside of the rotating cylinder 31. The grating disk 32 has a plurality of light-transmitting slots 33 spaced apart along the circumference. The inner ring 22 of the rolling bearing component 20 is sleeved and fixed on the rotating cylinder 31. The axis of the connecting hole 13, the axis of the rotating cylinder 31, and the axis of the rolling bearing component 20 are all located on the same straight line.

[0064] A circuit board 40 is covered on the mounting seat. The circuit board 40 is provided with a light emitter 41 and a light receiver 42. The circuit board 40 is used to be electrically connected to the mouse motherboard. The light emitter 41 and the light receiver 42 are connected to form a light path. When the rotating cylinder 31 rotates, the grating disk 32 is driven by the rotating cylinder 31 and can block or expose the light path.

[0065] In this embodiment, by manually turning the mouse wheel 200, a force is generated to drive the grating component 30 to rotate (because the rotating shaft 210 of the mouse wheel 200 is plugged into the rotating cylinder 31). Since the grating component 30 is fixedly connected to the inner ring 22 of the rolling bearing component 20, the inner ring 22 of the rolling bearing component 20 is pushed to rotate synchronously with the grating disk 32, thereby greatly reducing the friction force that needs to be overcome when the mouse wheel 200 is rolled. While achieving a synchronous rotation speed of the grating component 30 and the mouse wheel 200, it also reduces the friction coefficient of the mouse wheel 200 and achieves a silent effect, allowing the user to experience the undamped and rapid rotation of the mouse wheel 200.

[0066] Bearings are a vital component in modern machinery. Their primary function is to support rotating parts, reduce friction during movement, and ensure rotational accuracy. Bearings are broadly classified into three categories: plain bearings, spherical plain bearings, and rolling bearings. Rolling bearings generally consist of an outer ring, an inner ring, rolling elements, and a cage. Based on the shape of the rolling elements, rolling bearings are divided into ball bearings and roller bearings.

[0067] In the present application, the rolling bearing component 20 takes the deep groove ball bearing, which is the most representative of rolling bearings, as an example. Compared with other types of bearings of the same size, this type of bearing has a low friction coefficient, a high maximum speed, a simple structure, a low manufacturing cost, high precision, and does not require frequent maintenance. In addition, it has a wide range of sizes and a variety of forms, making it the most widely used type of bearing. It mainly bears radial loads and can also withstand certain axial loads. When it only bears radial loads, the contact angle is zero. Based on the above characteristics, deep groove ball bearings are very suitable for application in the technical solution of the present application. It is worth noting that the present application is not limited to deep groove ball bearings, and other types of rolling bearings can also be applied to the technical solution of the present application.

[0068] The circuit board is connected to the mouse motherboard to achieve a conductive state, and then the rotating shaft 210 of the mouse wheel 200 is inserted into the rotating cylinder 31 from the connecting hole 13. At this time, the mouse wheel 200, the bearing component 20, and the grating component 30 are in a coaxial state.

[0069] Therefore, when the mouse wheel 200 is driven forward by the user, the mouse wheel 200 can drive the grating disk 32 connected to it to rotate synchronously via the rotating shaft 210. At this time, the grating disk 32 can first block the light path formed between the light emitter 41 and the light receiver 42 and then re-open the light path. The circuit board 40 can detect the first change in the light signal of the light path, and then recognize the forward scrolling of the mouse wheel 200, so that the mouse can complete the corresponding command input according to the forward scrolling of the mouse wheel 200. It is worth noting that in some embodiments, the light receiver 42 can be composed of two units integrated into the same component, namely a first receiving unit and a second receiving unit, wherein the first receiving unit corresponds to "forward" and the second receiving unit corresponds to "backward". When the mouse wheel 200 is driven backward by the user, the mouse wheel 200 can drive the grating disk 32 connected to it to rotate synchronously. At this time, the grating disk 32 can first block the optical path formed between the light emitter 41 and the second light receiver 42 and then re-open the optical path. The circuit board 40 can detect that the optical signal of the second optical path has changed first, thereby recognizing the backward scrolling of the mouse wheel 200, so that the mouse can complete the corresponding command input according to the backward scrolling of the mouse wheel 200. In the present application, since the outer portion of the rotating cylinder 31 is fixed to the inner ring of the rolling bearing component 20, the rotating cylinder 31 has a synchronized rotation speed with the rolling bearing component 20 during rotation, so that the mouse wheel 200 has the same friction coefficient and quiet effect as the rolling bearing component 20 when rolling back and forth.

[0070] The housing 10 can be made of plastic, metal, or a combination of plastic and metal. A plastic housing 10 is relatively lightweight, which helps reduce the overall size of the mouse and facilitates user convenience. A metal housing 10 is relatively strong, which helps extend the life of the housing 10. Therefore, in some embodiments, the housing 10 may be partially metal and partially plastic.

[0071] The light emitter 41 and the light receiver 42 can be fixed to the circuit board 40 by welding so as to achieve both mechanical and electrical connection. Of course, in some embodiments, the light emitter 41 and the light receiver 42 can also be fixedly connected to the circuit board 40 by plugging.

[0072] Referring to Figures 3 to 6 , the grating component 30 further includes a connecting platform 34 radially outwardly disposed from the outer wall of the rotating cylinder 31. The connecting platform 34, located proximal to the sidewall of the rolling bearing component 20, contacts and connects with the end face of the inner ring 22 of the rolling bearing component 20. The connecting platform 34, located distal to the sidewall of the rolling bearing component 20, connects to the grating disk 32. In this embodiment, the outer wall of the rotating cylinder 31 is tightly fitted into the bore of the inner ring 22 of the rolling bearing component 20. Simultaneously, the connecting platform 34 is flush with the side surface of the inner ring 22 of the rolling bearing component 20, ensuring synchronous rotation of the rotating cylinder 31 and the rolling bearing component 20. Furthermore, the inner ring of the rolling bearing component 20 does not contact the housing, eliminating frictional interference.

[0073] The diameter of the connecting platform 34 is larger than the outer diameter of the inner ring 22 of the rolling bearing component 20, but smaller than the inner diameter of the outer ring 21 of the rolling bearing component 20. This ensures that the grating component 30 is fixed only to the inner ring 22 of the rolling bearing component 20 and does not come into contact with the outer ring 21 of the rolling bearing component 20 or other assembly parts. This significantly improves the smoothness of the inner ring rotation of the rolling bearing component 20.

[0074] Further, referring to Figures 4 to 7 , the rotating cylinder 31 and the grating disk 32 can be integrally formed. In other embodiments, the rotating cylinder 31 and the grating disk 32 can also be detachably connected, which can facilitate the replacement of the grating disk 32 with different numbers of light-transmitting slots 33. It is worth noting that the connecting platform 34 can be formed on the outer wall of the rotating cylinder 31 or in the middle of the grating disk 32. When the rotating cylinder 31 and the grating disk 32 are integrally formed, the connecting platform 34 connects the rotating cylinder 31 and the grating disk 32; when the rotating cylinder 31 and the grating disk 32 are separate, the connecting platform 34 can be located on the rotating cylinder 31 or the grating disk 32. Of course, in some embodiments, both the rotating cylinder 31 and the grating disk 32 can have a portion of the connecting platform 34.

[0075] Referring to Figures 4 to 6 , the housing 10 includes a mounting shell 11 and a fixed shell 12, spaced apart from each other. The mounting shell 11 includes a mounting plate 111, which has a mounting portion 112 protruding away from the fixed shell 12. The mounting cavity 113 is provided in the mounting portion 112, and the connection hole 13 is provided on the end surface of the mounting portion 112 facing away from the fixed shell 12. In this embodiment, the mounting portion 112 is formed by stretching the mounting shell 11 to form the mounting cavity 113. In other words, the mounting portion 112 and the mounting plate 111 are integrally formed. The overall shape of the mounting cavity 113 is consistent with that of the rolling bearing component 20. The rolling bearing component 20 is riveted into the mounting cavity 113 (the outer peripheral wall of the outer ring 21 tightly fits the inner wall of the mounting cavity 113). The end surface of the rolling bearing component 20 is flush with the inner surface of the mounting portion 112, thereby achieving the goal of both securing the rolling bearing component 20 and allowing the inner ring 22 of the rolling bearing component 20 to rotate freely. Specifically, the radial dimension of the connecting hole 13 is greater than or equal to the radial dimension of the inner ring 22 of the rolling bearing component 20, so that the mounting portion 113 avoids the end face of the inner ring 22 facing away from the fixed shell 12; the radial dimension of the connecting hole 13 is less than or equal to the radial dimension of the outer ring 21 of the rolling bearing component 20, so that the end face of the outer ring 21 facing away from the fixed shell 12 abuts against the inner side wall of the mounting cavity 113 (that is, the end face of the outer ring 22 of the bearing component 20 adjacent to the connecting hole 13 abuts against the inner side wall of the mounting cavity 113, that is, abuts against the inner side wall forming the connecting hole 13). Because the rolling bearing component 20 is coaxially arranged with the connecting hole 13, when the radial dimension of the connecting hole is greater than or equal to the radial dimension of the inner ring 22 of the rolling bearing component 20, the end surface of the inner ring 22 facing away from the stationary housing 12 does not contact the mounting portion 113 and is exposed through the connecting hole 13. This prevents the inner ring 22 from encountering any damping from the mounting portion 113 during rotation, facilitating smooth rotation of the inner ring 22 and the rotating cylinder 31. Furthermore, when the radial dimension of the connecting hole 13 is less than or equal to the radial dimension of the outer ring 21 of the rolling bearing component 20, the end surface of the outer ring 22 facing away from the stationary housing 12 abuts against the inner sidewall of the mounting cavity 113. In other words, the mounting portion 112 acts as a position limiter for the outer ring 21. This improves the installation stability of the rolling bearing component 20 and facilitates convenient and accurate installation of the rolling bearing component 20 into the predetermined position. (When the rolling bearing component 20 is installed in the mounting cavity 113, the rolling bearing component 20 is in place when one end surface of the outer ring 21 abuts the mounting portion 112.) At the same time, the contact between the end face of the outer ring 22 and the inner wall of the mounting portion prevents external dust, mosquitoes, etc. from entering the encoder through the fitting between the outer ring 21 and the mounting portion 112 .

[0076] The housing 10 also has an assembly cavity connected to the mounting cavity 113. The grating disk 32 is located in the assembly cavity. A portion of the rotating cylinder 31 is located in the assembly cavity, while another portion is located in the mounting cavity 113. The assembly cavity is enclosed by the fixed shell 12 and the mounting shell 11. A rotating space 121 is formed within the fixed shell 12, which can be part of the assembly cavity. The grating disk 32 is rotatably mounted within the rotating space 121.

[0077] The fixed housing can take various forms. In some embodiments, it can include a light-transmitting cavity 122 for accommodating or housing the light emitter 41 and light receiver 42. In some embodiments, the fixed housing 12 can include, in addition to the light-transmitting cavity 122, a connecting hole 125. The connecting hole 125 is concentrically arranged with the connecting hole 13, allowing the mouse's rotation axis to connect to the rotating cylinder through the connecting hole 125. Furthermore, in some embodiments, the light-transmitting cavity 122 and the connecting hole 125 can be connected to form a large space, which can serve as part or all of the avoidance hole described in later embodiments. Based on the above, the following detailed description will be provided.

[0078] The fixed housing 12 defines a rotating space 121 within which the grating disk 32 is rotatably mounted. A light-transmitting cavity 122 is formed at the bottom of the fixed housing 12, communicating with the rotating space 121. The light emitter 41 and the light receiver 42 are both located within the light-transmitting cavity 122 and positioned on either side of the light-transmitting slot 33. A connecting hole 125 is provided on the end surface of the fixed housing 12 facing away from the mounting housing 11. This connecting hole 125 is concentric with the connecting hole 13. The provision of the connecting hole 125 allows the rotation axis 210 of the mouse wheel 200 to be connected to the rotating cylinder 31 from two different directions, depending on actual needs. The grating disk 32 can rotate within the rotating space 121 under the action of the rotating cylinder 31. When the circuit board 40 is mounted on the fixed housing 12, the light emitter 41 and light receiver 42 on the circuit board 40 are both located within the light-transmitting cavity 122 of the fixed housing 12. The light-transmitting cavity 122 communicates with the rotating space 121. This allows the circuit board 40 to be positioned outside the housing 10, with the light emitter 41 and light receiver 42 engaging with the grating disk 32 through the light-transmitting cavity 122.

[0079] 3 and 4 , the grating disk 32 includes a connecting disk 321 and a transparent optical disk 322 . The connecting disk 321 is rotatably mounted on the rotating cylinder 31 . The transparent optical disk 322 extends axially from the outer edge of the connecting disk 321 in a direction away from the rolling bearing component 20 . The transparent slots 33 are spaced apart on the transparent optical disk 322 . The light emitter 41 and the light receiver 42 are located on the inner and outer sides of the transparent optical disk 322 , respectively. Therefore, when the grating disk 32 rotates, the light path between the light emitter 41 and the light receiver 42 can be blocked or exposed.

[0080] Among them, since the connecting platform 34 is connected between the end face of the inner ring 22 of the rolling bearing component 20 and the connecting plate 321, there is a gap between the connecting plate 321 and the rolling bearing component 20. Therefore, it can ensure that the grating disk 32 only contacts and cooperates with the inner ring 22 of the rotating part of the rolling bearing component 20, and can also maintain a certain gap between the grating disk 32 and the inner wall surface of the housing 10, thereby achieving a speed, service life and quiet effect synchronized with the rolling bearing component 20.

[0081] 3 to 6 , there are many ways to match the mounting shell 11 and the fixing shell 12 , such as fixing the two by fasteners such as screws, connecting them by snap fastening, etc., which will be described in detail below with examples.

[0082] The mounting shell 11 is provided with a mounting hole 115, and the side wall of the fixed shell 12 facing the mounting shell 11 is provided with a mounting post 126 that mates with the mounting hole 115. In this embodiment, the mounting post 126 on the fixed shell 12 mates with the mounting hole 115 on the mounting shell 11 to enable a detachable connection between the fixed shell 12 and the mounting shell 11. In some embodiments, the mating between the mounting post and the mounting hole can also be a positioning fit (i.e., achieving accurate positioning of the mounting shell and the fixed shell), or the connection between the mounting shell and the fixed shell can be achieved by the engagement of a snap fit with a boss. Specifically, the mounting shell 11 also includes snap fits 114 provided on both sides and / or the bottom of the mounting shell 11, which snap fit with corresponding bosses on the fixed shell 12. The snap fits can take various forms, such as snap slots, snap holes, etc. In this embodiment, the snap fits protrude from both sides of the mounting shell 11 toward the fixed shell 12, and the protruding portions have snap holes. When the mounting shell 11 and the fixed shell 12 are mated, they are first accurately positioned by the mating of the mounting holes 115 and the mounting posts 126, and then secured by the engagement of the buckle 114 and the boss. In some embodiments, a buckle 114 is further provided at the bottom of the mounting shell 11. The bottom buckle 114 extends from the bottom of the mounting shell 11 to the bottom of the fixed shell 12. A notch is formed at the bottom of the fixed shell 12, and a boss is provided within the notch to engage with the buckle 114. This allows the bottom buckle 114 to engage with the boss, and the engaged buckle 114 can be stored in the notch, thereby concealing the bottom buckle 114. In some embodiments, the positions of the buckle 114 and the boss in the above embodiments are interchangeable.

[0083] It is worth noting that the fixed shell 12 and the mounting shell 11 can be made of many materials, such as a plastic shell or a metal shell. The mounting shell 11 also includes a fixed foot 12a connected to the motherboard of the mouse and a support portion 129 that abuts against the motherboard. There are two fixed feet 12a, and the support portion 129 is located between the two fixed feet 12a. The fixed foot 12a includes a support structure 12c and a plug-in structure 12b, and the plug-in structure 12b is used to plug into the motherboard. The bottom of the support structure 12c is flush with the bottom of the support portion 129, and after assembly, they both abut against the surface of the motherboard. The buckle position 114 at the bottom of the mounting shell 11 can be formed by partially bending the support portion 129 (the metal support portion 129 is formed by stamping or other processes to form the buckle position 114 bent toward the mounting shell 11, and the support portion 129 after the bent buckle position 114 is formed has a process opening consistent with the shape of the buckle position 114).

[0084] 7 to 11 , there are many possible positions and installation forms for the circuit board 40 , which are described in detail below with examples.

[0085] The mouse encoder 100 also includes a fixing plate 500, which is arranged in parallel with the shell 10. The circuit board 40 is arranged between the shell 10 and the fixing plate 500. The fixing plate 500 is fastened to the shell 10 to clamp at least part of the circuit board 40 therebetween.

[0086] Specifically, in this embodiment, the fixing plate 500 can take many forms, such as a plastic fixing plate 500 or a metal fixing plate 500, without particular limitation. A metal fixing plate 500 is used as an example. The metal fixing plate 500 can be made thinner while ensuring its load-bearing capacity. "Parallel" the fixing plate 500 to the housing 10 means that the surface of the fixing plate 500 is roughly parallel to the housing 10, with the overall shape of the housing 10 being flat. This significantly increases the area of ​​the circuit board 40 held between the fixing plate 500 and the housing 10, thereby significantly enhancing the stability and reliability of the installation. Furthermore, by arranging the circuit board 40 outside the housing 10, it does not occupy space within the housing 10, thereby making the structural arrangement within the housing 10 (including the rolling bearing component 20, the rotating cylinder 31, and the grating disk 32) more compact. There are many ways to connect the fixing plate 500 and the housing 10, such as connecting through fasteners such as screws, connecting through snap fastening, etc., which are not particularly limited here.

[0087] In this embodiment, by setting a fixing plate 500 and setting the fixing plate 500 parallel to the shell 10, when the circuit board 40 is set in parallel between the fixing plate 500 and the shell 10, by fastening the fixing plate 500 to the shell 10, the circuit board 40 can be clamped between the fixing plate 500 and the shell 10, so that the circuit board 40 can be stably and reliably installed on the outside of the shell 10, and is set adjacent to the grating disk 32 in the shell 10, so that the grating disk 32 can be conveniently matched with the light emitter 41 and the light receiver 42. In this way, the stability of the installation of the circuit board 40 and the compactness of the structure of the mouse encoder 10 are greatly improved.

[0088] It is worth noting that there are many ways to electrically connect the light emitter 41 and the light receiver 42 to the circuit board 40. For example, the two can be directly welded or plugged into the circuit board 40. In some embodiments, the light emitter 41 and the light receiver 42 can also be electrically connected to the circuit board 40 through electrical connectors such as wires.

[0089] On this basis, in order to further improve the structural compactness of the mouse encoder 100, the light emitter 41 and the light receiver 42 are arranged on the board surface of the circuit board 40 facing the shell 10; the shell 10 has a rotating space 121 for the grating disk 32 to be rotated, and an avoidance hole 12d is opened on the side wall of the shell 10 on which the circuit board 40 is installed. The avoidance hole 12d is connected to the rotating space 121, and the light emitter 41 and the light receiver 42 cooperate with the grating disk 32 through the avoidance hole 12d.

[0090] Specifically, in this embodiment, the light emitter 41 and light receiver 42 are mounted directly on the surface of the circuit board 40, simplifying the circuitry connecting the light emitter 41 and light receiver 42 to the circuit board 40. The clearance hole 12d can have a variety of shapes, including circular, elliptical, square, triangular, and other shapes, without particular limitation. The clearance hole 12d primarily serves to clear the light emitter 41 and light receiver 42. Therefore, the clearance hole 12d must at least ensure that the light emitter 41 and light receiver 42 can enter the rotating space 121 and mate with the grating disk 32. Of course, in some embodiments, the clearance hole 12d can also clear the mouse's rotation axis 210 (when the rotation axis 210 is inserted into the rotating drum from the fixed plate 500). In this case, the shape and position of the clearance hole 12d must take into account the installation of the rotation axis 210. In this embodiment, for ease of processing, the clearance hole 12d is configured as a circular hole, coaxial with the rotating space (the rotating space is exemplified as a cylindrical shape). In this embodiment, by setting the avoidance hole 12d, the light emitter 41 and the light receiver 42 installed on the circuit board 40 can enter the rotating space 121 nearby, thereby achieving cooperation with the grating disk 32. In this way, the structure of the mouse encoder 100 is greatly simplified, which is conducive to improving the compactness of the structure inside the shell 10 and the encoder 100.

[0091] The circuit board 40 can take many forms, such as a traditional printed circuit board 40 or a flexible circuit board 40. In this embodiment, the circuit board 40 is exemplified by a flexible circuit board 40. Specifically, the circuit board 40 is a flexible circuit board 40, comprising a board body 43 and a flexible cable bus 45 connected to the board body 43. The end of the flexible cable bus 45, distal from the board body 43, is configured to plug into the mainboard. The board body 43 is clamped between the fixing plate 500 and the housing 10. Compared to a traditional printed circuit board 40, the board body 43 exhibits a certain degree of elasticity. Its main material may be a hard colloid, and the circuit structure is embedded within the board body 43. When clamped, the board body 43 undergoes a certain degree of elastic deformation, thereby improving the fit between the board body 43 and the fixing plate 500 and the housing 10. This allows the optical transmitter 41 and optical receiver 42 disposed thereon to better cooperate with the optical disc 322, while also improving the stability of the clamping of the board body 43. The flexible cable 45 is a flexible conductor. A plug connector is located on the end away from the board body 43. This plug connector can be directly plugged into the power port on the mouse motherboard. To disassemble the cable, simply unplug the plug connector from the power port. Compared to a conventional printed circuit board 40, the flexible circuit board 40 in this embodiment provides a very convenient and reliable connection to the mouse motherboard. It also avoids the reliability issues and risks associated with soldering and other processes, significantly simplifying the electrical connection process between the encoder 100 and the mouse motherboard.

[0092] In some embodiments, to further improve the installation stability of the circuit board 40, the board body 43 has a first board surface 431 facing the housing 10 and a second board surface 432 facing the fixing plate 500. The first board surface 431 is in contact with the surface of the housing 10, and the second board surface 432 is in contact with the surface of the fixing plate 500. In this embodiment, the first board surface 431 of the board body 43 facing the housing 10 is flat or quasi-flat, allowing the first board surface 431 to contact the outer surface of the housing 10, thereby improving the fit between the board body 43 and the housing 10. The second board surface 432 facing the fixing plate 500 is flat or quasi-flat, allowing the second board surface 432 to contact the surface of the fixing plate 500, thereby improving the fit between the board body 43 and the fixing plate 500. This helps the fixing plate 500 better press the circuit board 40 against the surface of the housing 10.

[0093] In some embodiments, to improve the operational stability of the flexible cable 45 and enhance the compactness of the encoder 100, one end of the flexible cable 45 is connected to the connection end of the plate body 43. A clearance notch 520 is provided on the fixed plate 500 at a position corresponding to the connection end. This clearance notch 520 is used to allow the flexible cable 45 to pass through. Specifically, in this embodiment, the plate body 43 is rectangular in shape. The plate body 43 and the fixed plate 500 are arranged parallel to each other, with the end of the plate body 43 adjacent to the mouse motherboard serving as the connection end. The clearance notch 520 is provided at the end of the fixed plate 500 adjacent to the mouse motherboard. The clearance notch 520 corresponds to the connection location between the flexible cable 45 and the plate body 43, allowing the flexible cable to pass through the fixed plate 500 without being squeezed by the fixed plate 500. This reduces the risk of damage to the flexible cable 45 from being squeezed. Furthermore, because the clearance notch 520 is located adjacent to the mouse motherboard, the flexible cable 45 can extend directly to the wiring port on the motherboard without excessive detours. When the encoder 100 is mounted on the motherboard, the clearance notch 520 and the mouse motherboard enclose a space for the flexible cable 45, which helps improve the installation stability of the flexible cable 45. It is worth noting that in some embodiments, the installation position of the flexible circuit board 40 can be different. For example, if it is installed on the side where the rolling bearing component 20 is located, the flexible cable 45 can extend from the side where the mounting plate 111 is located. After extending from the clearance notch 520, the flexible cable 45 can be directly plugged into the motherboard. In some embodiments, it can also be inserted through the through-holes in the support portion 129 before being plugged in. In other embodiments, the flexible cable 45 can also be directly inserted through the through-holes in the support portion 129 without passing through the clearance notch 520.

[0094] The connection between the fixing plate 500 and the housing 10 is described in detail below with reference to an example.

[0095] The housing 10 is provided with a positioning post 127 on the side facing the circuit board 40. A first positioning hole is formed on the circuit board 40 corresponding to the positioning post 127, and a second positioning hole 550 is formed on the fixing plate 500 corresponding to the positioning post 127. The first positioning hole and the second positioning hole 550 are sleeved onto the positioning post 127. Specifically, in this embodiment, the number of positioning posts 127 can vary, such as two, three, or four. In this embodiment, four positioning posts 127 are used as an example, and the four positioning posts 127 are respectively provided at the four corners of the side of the housing 10. The number of the first positioning holes and the second positioning holes 550 corresponds to the number of the positioning posts 127. When there are four positioning posts 127, the number of the first positioning holes and the second positioning holes 550 is also four. During the installation of the circuit board 40, the circuit board 40 first engages with the positioning post 127 through the first positioning hole, and then the fixing plate 500 engages with the positioning post 127 through the second positioning hole 550. In some embodiments, the positioning posts 127 may not only perform a positioning function but also participate in a fixing operation. For example, the positioning posts 127 may be threaded posts with external threads, and a nut may cooperate with the positioning posts 127 to fasten the fixing plate 500 and the circuit board 40 to the housing 10. In some embodiments, the positioning posts 127 may simply perform a positioning function, while the fixing plate 500 and the housing 10 are connected by other structures, such as screws, snaps, etc., as illustrated below.

[0096] The fixing plate 500 is provided with fasteners 530 on both sides, and the housing 10 is provided with latching protrusions 128 on both sides corresponding to the fasteners 530. The fasteners 530 and the latching protrusions 128 are engaged with each other. In some embodiments, the positions of the fasteners 530 and the latching protrusions 128 are interchangeable, that is, the fasteners 530 are provided on both sides of the housing 10, and the latching protrusions 128 are formed on both sides of the fixing plate 500. The fasteners 530 can take many forms, such as having latch holes, latch slots, etc. The fasteners 530 protrude from both sides of the fixing plate 500 toward the housing 10. The latching protrusions 128 protrude from both sides of the housing 10 and can take many forms, such as bumps. The fasteners 530 and the latching protrusions 128 engage and press the fixing plate 500 and the housing 10 together, achieving a removable and secure connection between them. When the fixing plate 500 and the housing 10 are mated, the circuit board 40 is clamped between them.

[0097] In some embodiments, to improve the compactness of the mouse encoder 100, the housing 10 includes a mounting shell 11 and a fixed shell 12, which are spaced apart. The mounting shell 11 also includes latches 114 on both sides of the mounting shell 11, which engage with corresponding bosses 123 on the fixed shell 12. The latches 128 and bosses 123 are arranged along the height of the fixed shell 12, and the latches 114 and the fasteners 530 are staggered. Specifically, in this embodiment, the latches 128 and bosses 123 are both provided on the fixed shell 12 and spaced apart along the height of the fixed shell 12. Regarding the specific arrangement order, in some embodiments, the bosses 123 can be located at the top of the fixed shell 12, and the latches 128 can be located at the bottom of the fixed shell 12. In this case, the fastener 530 that engages with the latches 128 is located at the bottom of the fixed plate 500, and the latches 114 that engage with the bosses 123 are located at the top of the mounting shell 11. In other embodiments, the latching protrusion 128 may be located at the top of the fixed shell 12, and the boss 123 may be located at the bottom of the fixed shell 12. In this case, the fastener 530 that engages with the latching protrusion 128 is located at the top of the fixed plate 500, and the buckle 114 that engages with the boss 123 is located at the bottom of the mounting shell 11. In this manner, by arranging the latching protrusion 128 and the boss 123 along the height of the fixed shell 12, both the fixed plate 500 and the mounting shell 11 can engage with the fixed shell 12, thereby fully utilizing the upper and lower spaces on both sides of the fixed shell 12 (to engage with the fastener 530 and the buckle 114, respectively). This ensures stable assembly of the fixed plate 500, the fixed shell 12, and the mounting shell 11 while also making rational use of space, thereby improving space efficiency and the compactness of the mouse encoder 100.

[0098] In some embodiments, in order to improve the convenience of assembling the mouse editor. For example, in order to improve the convenience of assembling the mounting shell 11 and the fixed shell 12, the boss 123 is formed with a first guide bevel 12e on the side facing the mounting shell 11, and the first guide bevel 12e is used to guide the buckle position 114 to buckle with the boss 123. Through the provision of the first guide bevel 12e, the buckle position 114 can move along the first guide bevel 12e to the buckle position during the assembly process, which is beneficial to improving the efficiency of assembly. In order to improve the convenience of assembling the fixing plate 500 and the fixed shell 12, the locking protrusion 128 is formed with a second guide bevel 12f on the side facing the fixing plate 500, and the second guide bevel 12f is used to guide the fastener 530 to buckle with the locking protrusion 128. Through the provision of the second guide bevel 12f, the fastener 530 can move along the second guide bevel 12f to the buckle position of the locking protrusion 128 during the assembly process, which is beneficial to improving the efficiency of assembly.

[0099] It is worth noting that, during the assembly process, there can be various forms of the order in which the buckle position 114 and the boss 123 are fastened together, and the fastener 530 and the latch 128 are fastened together. For example, the buckle position 114 and the boss 123 are fastened together first, and then the fastener 530 and the latch 128 are fastened together. At this time, the fastener 530 can cover the extended side wall forming the buckle position 114.

[0100] In some embodiments, the fastener 530 may be fastened to the latch 128 first, and then the fastening position 114 may be fastened to the boss 123. In this embodiment, a recess 12g is formed at the location where the latch 128 is provided, and the latch 128 is formed at the bottom of the recess 12g. The fastener 530 is in the shape of a lug, and when the fastener 530 is fastened to the latch 128, the fastener 530 is accommodated in the recess 12g. The fastener position 114 is formed on the covering side wall 116 of the fixed shell 12, and the covering side wall 116 extends from the edge of the mounting plate 111 toward the fixed shell 12. At this time, the fastener position 114 is fastened to the boss 123 again, and the covering side wall 116 covers both sides of the fixed shell 12, and the covering side wall 116 covers the mating position of the fastener 530 and the latch 128. At the same time, due to the setting of the groove 12g, the covering side wall 116 can be fitted with the side wall of the fixed shell 12 (the fastening of the fastener 530 and the protrusion 128 is hidden in the groove 12g). In this way, the overall width of the encoder 100 is greatly reduced, and it is beneficial to improve the structural compactness of the encoder 100.

[0101] There are many possible forms of the fixing plate 500, such as a fully enclosed plate or a plate with through holes, which will be described in detail below with examples.

[0102] The fully enclosed state of the fixing plate 500 can be divided into two operating conditions: one in which the circuit board 40 has the first via 46, and the other in which the circuit board 40 is a complete plate and does not have the first via 46. Specifically, the circuit board 40 is a complete plate and blocks the avoidance hole 12d; alternatively, the circuit board 40 has the first via 46, the circuit board 40 covers the avoidance hole 12d, and the fixing plate 500 blocks the first via 46. That is, in this embodiment, the fixing plate 500 is a complete plate, and the area corresponding to the avoidance hole 12d does not have a hole structure such as the second via 510. Based on this, the circuit board 40 can have the first via 46 or not. When the circuit board 40 has a first through-hole 46, it is positioned corresponding to the avoidance hole 12d, and the fixing plate 500 blocks the first through-hole 46, thereby sealing the side of the housing 10 facing the fixing plate 500. This prevents dust, insects, water, and the like from entering the housing 10. It is worth noting that this circuit board 40 can be used not only with a mouse encoder 100 in this operating condition (where the rotation shaft 210 of the mouse wheel 200 can only be inserted into the rotating cylinder 31 through the connecting hole 13), but can also be used in conditions where the rotation shaft 210 can be inserted from both sides of the mouse encoder 100. This significantly improves the adaptability of the circuit board 40. When the circuit board 40 does not have a first through-hole 46, the circuit board 40 blocks the avoidance hole 12d, and the fixing plate 500 presses against the circuit board 40, also sealing the side of the housing 10 facing the fixing plate 500.

[0103] When the fixing plate 500 is in a non-fully enclosed state, a first through hole 46 is provided on the circuit board 40, and a second through hole 510 is provided on the fixing plate 500 corresponding to the first through hole 46. The first through hole 46 and the second through hole 510 are connected to the rotating space 121 and the mounting cavity 113 through the avoidance hole 12d, so that the rotating shaft 210 of the mouse wheel 200 can be connected to the rolling bearing component 20 through the first through hole 46, the second through hole 510, the avoidance hole 12d and the rotating space 121. In this embodiment, the arrangement of the first through-hole 46 and the second through-hole 510 allows the space inside the housing 10 to communicate with the external environment via the avoidance hole 12d, the first through-hole 46, and the second through-hole 510. This allows the rotating shaft 210 to extend into the housing 10 and engage with the rotating cylinder 31. Alternatively, the end of the rotating cylinder 31 away from the connecting hole 13 can extend to the avoidance hole 12d, the first through-hole 46, and the second through-hole 510 to accommodate the rotating shaft 210. In this case, both sides of the mouse encoder 100 can be connected to the rotating shaft 210, making the mouse encoder 100 applicable to a wider range of working conditions and significantly improving the adaptability of the mouse encoder 100.

[0104] Referring to Figure 8 , the present application also provides a mouse, which includes a mouse encoder 100 and a mouse wheel 200. Because the mouse includes the encoder 100, it utilizes all of the technical solutions of all of the aforementioned embodiments of the encoder 100, and thus possesses at least all of the beneficial effects of the technical solutions of the aforementioned embodiments, which will not be detailed here. It is understood that the mouse also includes other components, such as a housing.

[0105] The above description is only a preferred embodiment of the present application and does not limit the patent scope of the present application. All equivalent structural transformations made based on the contents of the present application specification and drawings, or direct / indirect application in other related technical fields, are included in the patent protection scope of the present application.

Claims

1. A mouse encoder, wherein: include: A housing, wherein the housing is provided with a mounting cavity, and an end surface of the housing is provided with a connecting hole for connecting with a rotating shaft of a mouse wheel, and the connecting hole is in communication with the mounting cavity; A rolling bearing component, wherein the rolling bearing component is disposed in the mounting cavity and an outer ring of the rolling bearing component is fixed to an inner wall surface of the mounting cavity; A grating component, the grating component comprises a rotating cylinder and a grating disk sleeved on the outside of the rotating cylinder, the grating disk has a plurality of light-transmitting grooves spaced apart along the circumferential direction, the rolling bearing component is sleeved and fixed on the rotating cylinder, and the axis of the connecting hole, the axis of the rotating cylinder and the axis of the rolling bearing component are all located on the same straight line; A circuit board is arranged in the shell, the circuit board is electrically connected with a light emitter and a light receiver, the circuit board is used to be electrically connected to the main board of the mouse, the light emitter and the light receiver are connected to form a light path, when the rotating cylinder rotates, the grating disk is driven by the rotating cylinder and can block or expose the light path.

2. The mouse encoder according to claim 1, wherein: The grating component also includes a connecting platform arranged radially outward from the outer wall surface of the rotating cylinder, the connecting platform is close to the side wall of the rolling bearing component and is in contact with the inner ring end surface of the rolling bearing component, the connecting platform is away from the side wall of the rolling bearing component and is connected to the grating disk, and the diameter of the connecting platform is larger than the outer diameter of the inner ring of the rolling bearing component and smaller than the inner diameter of the outer ring of the rolling bearing component, so as to ensure that the grating component is only fixed on the inner ring of the rolling bearing component and does not contact the outer ring of the rolling bearing component and other assembly parts.

3. The mouse encoder according to claim 1, wherein: The shell includes a mounting shell and a fixed shell arranged at intervals, the mounting shell includes a mounting plate, the mounting plate is provided with a mounting portion protruding in a direction away from the fixed shell, the mounting cavity is provided in the mounting portion, and the connecting hole is provided on the end surface of the mounting portion away from the fixed shell.

4. The mouse encoder according to claim 3, wherein: The mounting shell further comprises buckles arranged on both sides and / or the bottom of the mounting shell, and the buckles are buckled with corresponding bosses on the fixed shell; and / or the shell further comprises an assembly cavity connected to the mounting cavity, the grating disk is located in the assembly cavity, a part of the rotating cylinder is located in the assembly cavity, and another part is located in the mounting cavity.

5. The mouse encoder according to claim 3, wherein: A rotating space is formed inside the fixed shell, and the grating disk is rotatably arranged in the rotating space; a light-transmitting cavity is formed at the lower part of the fixed shell, and the light-transmitting cavity is connected with the rotating space, and the light transmitter and the light receiver are both arranged in the light-transmitting cavity and on both sides of the light-transmitting groove.

6. The mouse encoder according to claim 5, wherein: A communicating hole is provided on the end surface of the fixed shell which is away from the mounting shell. The communicating hole is communicated with the rotating space, and the communicating hole is concentrically arranged with the connecting hole.

7. The mouse encoder according to claim 6, wherein: The installation shell is provided with an installation hole, and the side wall of the fixed shell facing the installation shell is provided with an installation column adapted to the installation hole; And / or, the light-transmitting cavity is connected to the connecting hole.

8. The mouse encoder according to claim 1, wherein: The radial dimension of the connecting hole is greater than or equal to the radial dimension of the inner ring of the rolling bearing component, so that the mounting portion avoids the end face of the inner ring facing away from the fixed shell; the radial dimension of the connecting hole is less than or equal to the radial dimension of the outer ring of the rolling bearing component, so that the end face of the outer ring adjacent to the connecting hole abuts against the inner wall of the mounting cavity.

9. The mouse encoder according to any one of claims 1, wherein: The grating disk includes a connecting disk and a transparent disk, wherein the connecting disk is arranged on the rotating cylinder and can rotate with the rotating cylinder, the transparent disk extends from the outer edge of the connecting disk in the axial direction away from the rolling bearing component, and the transparent grooves are arranged at intervals on the transparent disk; And / or, the rotating cylinder is detachably connected to the grating disk.

10. The mouse encoder according to claim 1, wherein: The mouse encoder also includes a fixing plate, which is arranged in parallel with the shell, and the circuit board is arranged between the shell and the fixing plate. The fixing plate is tightly connected to the shell to clamp at least part of the circuit board therebetween.

11. The mouse encoder according to claim 10, wherein: The optical transmitter and the optical receiver are arranged on a board surface of the circuit board facing the housing; The shell has a rotating space for the grating disk to rotate, and a side wall of the shell on which the circuit board is installed is provided with an avoidance hole, which is connected to the rotating space, and the light transmitter and the light receiver cooperate with the grating disk through the avoidance hole.

12. The mouse encoder according to claim 11, wherein: The circuit board is a complete board, and the circuit board blocks the avoidance hole; or, The circuit board is provided with a first through hole, the circuit board covers the avoidance hole, and the fixing plate blocks the first through hole.

13. The mouse encoder according to claim 11, wherein: A first through hole is provided on the circuit board, and a second through hole is provided on the fixed plate corresponding to the first through hole. The first through hole and the second through hole are connected to the rotating space and the mounting cavity through the avoidance hole, so that the rotating axis of the mouse wheel can be connected to the end of the rotating cylinder away from the connecting hole through the first through hole, the second through hole, and the avoidance hole.

14. The mouse encoder according to claim 10, wherein: The circuit board is a flexible circuit board, which includes a board body and a flexible wire array connected to the board body. One end of the flexible wire array away from the board body is used for plugging with the main board. The board body is clamped between the fixing plate and the shell.

15. The mouse encoder according to claim 14, wherein: The plate body has a first plate surface facing the shell, and a second plate surface facing the fixed plate, the first plate surface is in contact with the surface of the shell, and the second plate surface is in contact with the plate surface of the fixed plate; and / or, One end of the flexible wire array is connected to the connecting end of the plate body, and a relief gap is provided on the fixing plate at a position corresponding to the connecting end, and the relief gap is used for allowing the flexible wire array to pass through.

16. The mouse encoder according to claim 10, wherein: Fasteners are arranged on both sides of the fixing plate, and clamping protrusions are arranged on both sides of the shell corresponding to the fasteners, and the fasteners are buckled with the clamping protrusions.

17. The mouse encoder according to claim 16, wherein: The housing comprises a mounting shell and a fixing shell which are arranged at intervals, and the mounting shell further comprises buckles arranged on both sides of the mounting shell, and the buckles are buckled with corresponding bosses on the fixing shell; The locking protrusions and the bosses are arranged along the height direction of the fixing shell, and the buckling positions and the buckles are staggered.

18. The mouse encoder according to claim 17, wherein: A first guiding slope is formed on one side of the boss facing the mounting shell, and the first guiding slope is used to guide the buckle position to buckle with the boss; and / or, A second guiding slope is formed on one side of the locking convex surface facing the fixing plate, and the second guiding slope is used to guide the fastener to engage with the locking convex surface; and / or, The fixing shell is formed with recessed grooves on both sides, the latching protrusions are located in the recessed grooves, and the fasteners are received in the recessed grooves after being engaged with the latching protrusions; the mounting shell comprises a mounting plate and a covering side wall extending from the mounting plate to the fixing shell, and the latching position is formed on the covering side wall; after the latching position is engaged with the boss, the covering side wall covers both sides of the fixing shell and covers the recessed grooves.

19. The mouse encoder according to claim 10, wherein: A positioning column is arranged on one side of the shell facing the circuit board, a first positioning hole is formed on the circuit board corresponding to the positioning column, a second positioning hole is formed on the fixing plate corresponding to the positioning column, and the first positioning hole and the second positioning hole are sleeved on the positioning column.

20. A mouse, wherein: It comprises a main board and a mouse encoder according to claim 1, wherein the mouse encoder is mounted on the main board.

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