Key and electronic device

Abstract

The application discloses a key and an electronic device. The key comprises a first support, a second support, a switch and a rolling piece. The rolling piece comprises a rolling wheel and a rotating shaft. The rotating shaft is rotatably connected to the second support, and the rolling wheel is fixedly connected to the rotating shaft. The switch is arranged between the first support and the second support. The second support is movably connected to the first support and is provided with a containing groove for containing the rolling wheel. The second support has a first end and a second end which are oppositely arranged along the axial direction of the rotating shaft. During pressing the rolling wheel, the moving stroke of the second support at the second end is greater than that at the first end. The key provided by the application can reliably and stably trigger the switch, and the moving stroke and the moving track of the key can be ensured to be stable when the user presses the rolling piece, and the human-computer operation experience is improved.

Description

Technical Field

[0001] This application relates to the technical field of adjustment keys, and more particularly to a key and an electronic device. Background Technology

[0002] In existing scroll adjustment buttons, the two ends of the movable bracket move in the same direction relative to the fixed bracket. This makes it easy for the movable bracket to move like a seesaw when the user presses the scroll adjustment button, resulting in a stiff and difficult pressing experience for the user and reducing the human-computer interaction experience. Utility Model Content

[0003] In view of this, one objective of this application is to provide a button and electronic device to solve the technical problem that in the prior art, the two ends of the movable bracket of the scroll adjustment button move in the same way relative to the fixed bracket, which makes the movable bracket prone to seesaw movement when the user presses the scroll adjustment button, resulting in a stiff and difficult pressing feel for the user and reducing the human-computer operation experience.

[0004] In a first aspect, embodiments of this application provide a button, including a first bracket, a second bracket, a switch, and a scroll member; the scroll member includes a roller and a rotating shaft, the rotating shaft is rotatably connected to the second bracket, and the roller is fixedly connected to the rotating shaft; the switch is disposed between the first bracket and the second bracket; the second bracket is movably connected to the first bracket and is provided with a receiving groove for receiving the roller; the first bracket has a first end and a second end disposed opposite to each other along the axial direction of the rotating shaft, and during the pressing of the roller, the travel distance of the second bracket at the second end is greater than the travel distance at the first end.

[0005] In one possible implementation, the second bracket is rotatably connected to the first bracket at the first end, and the second bracket is movably connected to the first bracket at the second end.

[0006] In one possible implementation, the first bracket is provided with a first limiting part, and the second bracket is provided with a second limiting part at the second end. The first limiting part and the second limiting part slide in cooperation and are used to limit the travel of the second bracket relative to the first bracket.

[0007] In one possible implementation, the button further includes a first damping element disposed at the second end and located between the first bracket and the second bracket. When the first damping element is in a pressed state, the first damping element elastically abuts against the second bracket and the first bracket in the direction of movement of the second bracket.

[0008] In one possible implementation, the first damping element is configured as an O-ring, and the first damping element abuts against the first bracket and the second bracket radially.

[0009] In one possible implementation, the button further includes a connecting shaft connected to the second bracket, wherein the first damping element is sleeved on the outside of the connecting shaft and connected to the second bracket via the connecting shaft.

[0010] In one possible implementation, the button further includes at least one second damping element, each second damping element being sleeved on the outside of the second limiting portion or the first limiting portion, and each second damping element elastically abutting between the second bracket and the first bracket.

[0011] In one possible implementation, the second damping element is configured as an O-ring, and the second damping element abuts against the first bracket or the second bracket along the axial direction of the second damping element.

[0012] In one possible implementation, the first bracket is provided with a movable slot, and the second bracket and the switch are movably embedded in the movable slot.

[0013] In one possible implementation, one of the first bracket and the second bracket is provided with a guide groove, and the other of the first bracket and the second bracket is provided with a slide rail that slides in cooperation with the guide groove, wherein the extension direction of the guide groove is the movement direction of the second bracket.

[0014] In one possible implementation, the switch further includes an encoder and a circuit board, the encoder being rotatably connected to the rotating shaft, and the circuit board being electrically connected to the switch and the encoder.

[0015] In a first aspect, embodiments of this application provide an electronic device, including a housing and a button as described above. The housing has a mounting groove, and the side wall of the housing has a through hole communicating with the mounting groove. The button is mounted in the mounting groove, and the scroll member of the button is rotatably disposed through the through hole and protrudes relative to the housing.

[0016] The button and electronic device provided in this application are based on the fact that during the pressing of the scroll wheel, the travel of the second bracket at the second end is greater than that at the first end, thereby reducing the risk of the second bracket forming a seesaw motion during its movement relative to the first bracket. This enables the second bracket to reliably and stably trigger the switch, and ensures that the user can press the scroll wheel to guarantee the stability of the button's travel and trajectory, and improves the human-machine interface experience. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of a partial structure of the electronic device provided in the embodiments of this application.

[0019] Figure 2 yes Figure 1 A first exploded diagram of the buttons on an electronic device.

[0020] Figure 3 yes Figure 1 A cross-sectional view of the buttons on an electronic device.

[0021] Figure 4 yes Figure 1 A side view of a partial structure of an electronic device.

[0022] Figure 5 yes Figure 4 A partial structural view of the electronic device along section AA.

[0023] Figure 6 yes Figure 1 A second exploded view of the buttons on an electronic device.

[0024] Figure 7 yes Figure 4 A partial structural view of the electronic device along BB.

[0025] Key reference numerals: Electronic equipment - 100; Housing-1; Mounting groove-101; Through hole-102; Mounting end wall-11; Mounting side wall-12; Press button -2; First bracket-20; movable groove-201; guide groove-202; stepped groove-203; mating part-23; first limiting part-24; pressing protrusion-25; Second bracket-30; receiving groove-301; slide rail-302; first shaft hole-303; second shaft hole-304; limiting groove-305; connecting hole-306; positioning groove-307; first end-310; second end-320; connecting part-31; second limiting part-32; Switch-40; Fixed contact part-41; Movable contact part-42; Rolling element-50; Roller-51; First rolling part-511; Second fixed part-512; Rotating shaft-52; First limiting block-521; Second limiting block-522; Anti-rotation rod-523; Encoder-60; Mounting part-61; Encoding part-62; Anti-rotation hole-601; First damping component - 71; Abutment surface - 7101; Connecting shaft - 72; Second damping component - 73; Third damping component - 74; Circuit board - 80; First circuit board - 81; Second circuit board - 82; Third circuit board - 83; First direction - X; Second direction - Y; Third direction - Z.

[0026] The following detailed description, in conjunction with the accompanying drawings, will further illustrate this application. Detailed Implementation

[0027] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0028] It is understood that the terminology in the specification, claims, and accompanying drawings of this application is for describing specific embodiments only and is not intended to limit this application. The terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish different objects, not to describe a specific order. Unless the context clearly states otherwise, the singular forms "a" and "described" are also intended to include the plural forms. The term "comprising," and any variations thereof, are intended to cover non-exclusive inclusion. Furthermore, this application can be implemented in many different forms and is not limited to the embodiments described herein. The purpose of providing the following specific embodiments is to facilitate a clearer and more thorough understanding of the disclosure of this application, wherein words indicating orientation such as up, down, left, and right refer only to the position of the illustrated structure in the corresponding drawings. In the description of this application, it should be noted that unless otherwise explicitly specified and limited, the terms "installed," "connected," "linked," and "set on" should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral connection; it can refer to a mechanical connection; it can refer to a direct connection or an indirect connection through an intermediate medium; it can refer to the internal communication between two elements. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0029] The following description provides preferred embodiments for carrying out this application; however, this description is for the purpose of illustrating the general principles of this application and is not intended to limit the scope of this application. The scope of protection of this application shall be determined by the appended claims.

[0030] Please refer to the following: Figure 1 and Figure 2 , Figure 1 This is a schematic diagram of a partial structure of the electronic device 100 provided in an embodiment of this application; Figure 2 yes Figure 1 The first exploded view shows the button 2 of the electronic device 100. The electronic device 100 includes a housing 1 and a button 2. A mounting groove 101 is provided inside the housing 1. A through hole 102 communicating with the mounting groove 101 is provided on the side wall of the housing 1. The button 2 is installed in the mounting groove 101. The scroll member 50 of the button 2 is rotatably disposed through the through hole 102 and protrudes relative to the housing 1. Thus, the rotation direction of the scroll member 50 is perpendicular to the plane where the housing 1 and the part rotatably connected to the scroll member 50 are located, and a small part of the structure of the scroll member 50 protrudes from the housing 1 for user operation, thereby improving the human-machine interface experience and enhancing the aesthetics of the product.

[0031] Electronic device 100 can be, but is not limited to, headphones, earphone cases, TWS earphones, OWS earphones, watches, tablets, mobile phones, digital cameras, multimedia players, e-book readers, laptops, and other devices with knobs. Understandably, to enable those skilled in the art to better understand electronic device 100, this application uses headphones as an example for detailed description. It should be noted that using headphones as an example is for illustrative purposes only, and this application does not impose specific limitations. For example, the product type of electronic device 100 can be set according to actual needs.

[0032] Understandably, when the electronic device 100 is configured as an earphone case, the button 2 can be located on the outer surface of the earphone case housing 1. Specifically, the button 2 can be located within a mounting groove 101 located at a corner of the housing 1; or, it can be located on a side wall of the housing 1 parallel to the thickness direction of the earphone case. For example, when the electronic device 100 is a mobile phone, the button 2 can be configured as a side button, i.e., the button 2 is mounted on a side wall of the phone case parallel to the thickness direction of the phone. The setting method and setting method of the button 2 can be configured according to the product type of the electronic device 100, and this application embodiment does not impose specific limitations.

[0033] The electronic device 100 also includes functional modules. Button 2 is used to adjust the operating parameters and / or status parameters of the functional module. For example, the scroll bar 50 can be configured as, but is not limited to, a parameter adjustment structure, a selection structure, or a switching structure. The parameter adjustment structure can be, but is not limited to, a volume adjustment structure, a brightness adjustment structure, a temperature adjustment structure, a playback speed adjustment structure, or other structures used to adjust the magnitude and / or intensity of functional parameters. The selection structure can be, but is not limited to, a menu selection structure, a channel selection structure, etc. For example, a menu selection structure can be used to select a target song. The switching structure can be, but is not limited to, a working mode switching structure; for example, a switching structure can be used to switch song loop modes. The function of the scroll bar 50 can be set according to the product type of the electronic device 100, and this embodiment does not impose specific limitations.

[0034] Exemplarily, in this embodiment, the housing 1 includes a mounting end wall 11 and a mounting side wall 12. The mounting end wall 11 is connected to one end of the mounting side wall 12 in the third direction Z. The mounting side wall 12 is configured as an annular structure. The mounting end wall 11 and the mounting side wall 12 are connected to form a mounting groove 101. The housing 1 is part of the casing of the electronic device 100. For example, the housing 1 is the mid-frame of the electronic device 100. Specifically, the casing of the electronic device 100 may also include a front casing and a rear casing, with the housing 1 connected between the front casing and the rear casing. The housing 1 and the front casing and rear casing may be integrally formed or separately formed.

[0035] Of course, in some embodiments, the housing 1 can be the entire casing of the electronic device 100; or, the mounting end wall 11 can be omitted, that is, the housing 1 only includes the mounting side wall 12. In other words, the mounting side wall 12 is provided in a ring to form a mounting groove 101. The shape and structure of the housing 1 can be set according to the type of electronic product, and the embodiments of this application do not make specific limitations.

[0036] For example, in this embodiment, the housing 1 has a through hole 102 on a side wall parallel to the second direction Y. Of course, in some embodiments, the housing 1 has a through hole 102 on a side wall parallel to the first direction X. The opening direction of the through hole 102 is perpendicular to the direction in which the functional area of ​​the electronic device 100 points to the user, thereby improving the human-machine operation experience and enhancing the aesthetics of the electronic device 100.

[0037] It should be noted that the functional area of ​​electronic device 100 refers to the area of ​​electronic device 100 facing the user during use. For example, when electronic device 100 is a pair of headphones, the functional area of ​​electronic device 100 is the sound outlet area of ​​the headphones, that is, the area pointing towards the user's ear when the headphones are worn. When electronic device 100 is a watch, the functional area of ​​electronic device 100 is the watch face area, that is, the area where the hands of the watch face face the user's eyes when the watch is worn on the user's wrist. When electronic device 100 is a mobile phone, the functional area of ​​electronic device 100 is the display area corresponding to the mobile phone's screen, that is, the area where electronic device 100 points from the display area towards the user's eyes. The functional area of ​​electronic device 100 can be set according to the actual product of electronic device 100, and this application embodiment does not make specific limitations.

[0038] It should be noted that, Figure 1 The purpose is merely to illustrate the arrangement between housing 1 and button 2, and is not to make specific limitations on the connection positions, connection relationships and specific structures of each component. Figure 1 The structure of the electronic device 100 illustrated in this application embodiment is merely a structural representation and does not constitute a specific limitation on the electronic device 100. In other embodiments of this application, the electronic device 100 may include... Figure 1 The electronic device 100 may include, but is not limited to, earmuffs, speakers, and transceivers, etc., more or fewer components, or combinations of certain components, or different components.

[0039] Please refer to the following: Figures 1 to 3 , Figure 3 yes Figure 1 A cross-sectional view of a button 2 in an electronic device 100. The button 2 includes a first bracket 20, a second bracket 30, a switch 40, and a roller 50. The roller 50 includes a roller 51 and a rotating shaft 52. The roller 51 is fixedly connected to the rotating shaft 52. The switch 40 and the second bracket 30 are disposed between the first bracket 20 and the second bracket 30. The second bracket 30 is movably connected to the first bracket 20 and is provided with a receiving groove 301. The receiving groove 301 is used to receive the roller 51. The first bracket 20 has a first end 310 and a second end 320 disposed opposite each other along the axial direction of the rotating shaft 52. During the pressing of the roller 51, the travel distance of the second bracket 30 at the second end 320 is greater than the travel distance at the first end 310.

[0040] The button 2 provided in this application is based on the fact that during the pressing of the scroll wheel 51, the travel of the second support 30 at the second end 320 is greater than the travel of the first end 310. This reduces the risk of the second support 30 forming a seesaw motion during its movement relative to the first support 20, thereby enabling the second support 30 to reliably and stably trigger the switch 40, and ensuring that the user can press the scroll wheel 50 to ensure the stability of the travel and trajectory of the button 2, and improving the human-machine operation experience.

[0041] In related technologies, such buttons typically have foam or similar materials filling the gap between the button and the body at both ends, allowing both ends to move. However, if the button is relatively long or has a large pressing area, the foam's hardness may change after aging or becoming soiled with sweat or other dirt. Alternatively, if the user does not press the button from the center, a seesaw effect may occur. Since switches are generally located in the center, this can lead to a poor tactile feel, or even if one end is pressed, the button may not be activated due to the seesaw effect, severely impacting the user experience.

[0042] Especially in wearable products like headphones and watches, particularly headphones, the human eye cannot provide auxiliary judgment, and the screen or other modules cannot reflect whether a press was successful. For example, headphones often have double-tap to switch and triple-tap to switch gestures; if a button fails to trigger, it will affect the user experience. For instance, a triple tap for "next track" becomes a double tap for "previous track"; or a single tap to answer and a double tap to hang up. When a double tap is recognized as a single tap, it greatly deviates from the user's actual intention.

[0043] For the sake of accuracy, all references to direction in this article should be expressed in terms of direction. Figure 1For reference, "first direction X" refers to the direction of movement of the second bracket 30, i.e., the left-right direction (where the positive X-axis is to the right); the term "second direction Y" refers to the direction parallel to the rotation axis of the roller 51, i.e., the front-back direction (where the positive Y-axis is to the back); the term "third direction Z" refers to the thickness direction of the housing 1 of the electronic device 100, i.e., the up-down direction (where the positive Z-axis is to the up). The first direction X, the second direction Y, and the third direction Z together constitute the three orthogonal directions of the electronic device 100. The first direction X, the second direction Y, and the third direction Z of the electronic device 100 can be customized according to the specific structure of the product and the perspective presented in the accompanying drawings; this application does not impose specific limitations. For ease of description, the directions such as up, down, left, and right in this application are relative positions and do not constitute a limitation on implementation. It should be noted that the travel distance of the first bracket 20 at the first end 310 is greater than or equal to zero, and the travel distance of the second bracket 30 at the second end 320 is greater than zero. For example, in this embodiment, the travel distance of the first bracket 20 at the first end 310 is equal to zero. Of course, in some embodiments, the travel distance of the second support 30 at the first end 310 is greater than zero and less than a preset threshold, so that the first support 20 at the first end 310 only experiences a small travel distance. It should be noted that the preset threshold can be set according to factors such as the installation error and tolerance gap between the first support 20 at the first end 310 and the second support 30, and this application embodiment does not impose a specific limitation.

[0044] Of course, in some embodiments, the first bracket 20 can be integrally formed with the housing 1, that is, the first bracket 20 and the housing 1 are an integral structure, thereby improving the connection strength between the first bracket 20 and the housing 1, and improving assembly efficiency. For example, in this embodiment, the first bracket 20 and the housing 1 can be independently set and fixedly connected. In other words, the first bracket 20 and the housing 1 are separate structures, thereby reducing the manufacturing difficulty of the first bracket 20 being integrated with the housing 1.

[0045] For example, in this embodiment, the second bracket 30 is rotatably connected to the first bracket 20 at the first end 310, and the second bracket 30 is movably connected to the first bracket 20 at the second end 320. In other words, the second bracket 30 and the first bracket 20 are fixedly disposed at the connection position at the first end 310, and the second bracket 30 and the first bracket 20 are movably disposed at the connection position at the second end 320. Therefore, on the one hand, the first end 310 of the first bracket 20 can serve as the fulcrum for the rotation of the second bracket 30 relative to the first bracket 20, so that the entire second bracket 30 acts as a lever, and the linear displacement generated by the second end 320 will directly act on the switch. Thus, when the roller 51 and the second bracket 30 are subjected to force, they will rotate around a predetermined axis (i.e., the hinge axis between the second bracket 30 and the first bracket 20 at the first end 310), instead of unpredictable wobbling or translation, thereby improving the precise control and stability of the rotation of the second bracket 30 relative to the first bracket 20. On the other hand, during the assembly process of the button 2, the second bracket 30 and the first bracket 20 are coarsely positioned at the second end 320 and finely positioned at the first end 310, reducing the assembly difficulty and realizing the confirmation, selection, or mode switching functions of the switch 40. Of course, in some embodiments, the connection position of the second bracket 30 and the first bracket 20 at the first end 310 can also be movably set.

[0046] The first support 20 is provided with a mating part 23. The second support 30 is provided with a connecting part 31 at its first end 310, which rotatably engages with the mating part 23. Therefore, by setting the travel of the second support 30 at its first end 310 to zero, the second support 30 can rotate around the center of the connecting part 31, avoiding unnecessary twisting, thereby providing the user with a clean, smooth, and directional operating feel when pressing the rolling element 50.

[0047] In some embodiments, the first bracket 20 is provided with a first limiting portion 24. The second bracket 30 is provided with a second limiting portion 32 at its second end 320. The first limiting portion 24 and the second limiting portion 32 are slidably engaged and used to limit the travel of the second bracket 30 relative to the first bracket 20. Thus, on the one hand, the provision of the first limiting portion 24 can limit the maximum travel of the second bracket 30 relative to the first bracket 20, thereby preventing the push switch 40 from being damaged, improving the safety of the button 2, and extending the service life of the button 2; on the other hand, the slidable engagement of the first limiting portion 24 and the second limiting portion 32 provides good guidance for the movement of the second bracket 30 relative to the first bracket 20, so that the swing trajectory of the second bracket is strictly limited to a preset direction, avoiding unnecessary twisting, thereby providing the user with a clean, smooth, and directional operating feel.

[0048] For example, in this embodiment, the number of mating parts 23 and the number of first limiting parts 24 are each set to two. The two mating parts 23 are respectively disposed at the top and bottom of the first bracket 20, and the two first limiting parts 24 are also respectively disposed at the top and bottom of the first bracket 20. The number of connecting parts 31 is the same as the number of mating parts 23, and they are arranged in a one-to-one correspondence. The number of second limiting parts 32 is the same as the number of first limiting parts 24, and they are arranged in a one-to-one correspondence.

[0049] For example, in this embodiment, the connecting portion 31 and the second limiting portion 32 can both be columnar protrusions, and the mating portion 23 and the first limiting portion 24 can both be configured as through holes, with the columnar protrusions passing through the through holes. Specifically, the mating portion 23 is a circular through hole provided on the first bracket 20, and the first limiting portion is an oblong through hole provided on the first bracket 20. The connecting portion 31 is a columnar protrusion provided on the second bracket 30, and the columnar protrusion is rotatably engaged with the circular through hole. The second limiting portion 32 is also a columnar protrusion provided on the second bracket 30, and the columnar protrusion is slidably engaged with the oblong through hole. Thus, the four corners of the second bracket 30 are connected to the first bracket 20, thereby providing reliability and stability to the connection between the first bracket 20 and the second bracket 30. Of course, in some embodiments, the number of mating portions 23, the number of first limiting portions 24, the number of connecting portions 31, and the number of second limiting portions 32 can each be set to one. Of course, in some embodiments, the connecting part 31 and the second limiting part 32 may both be through holes, and the mating part 23 and the first limiting part 24 may both be configured as columnar protrusions, with the columnar protrusions passing through the through holes.

[0050] In some embodiments, the button 2 further includes a first damping member 71. The first damping member 71 is disposed at the second end 320 and located between the first bracket 20 and the second bracket 30. When the first damping member 71 is in a pressed state, the first damping member 71 elastically abuts against the second bracket 30 and the first bracket 20 in the direction of movement of the second bracket 30. Therefore, on the one hand, when the user applies a preset torque force to the rolling element 50, the rolling element 50 can roll relative to the second bracket 30. The reaction force of the rolling element 50 on the second bracket 30 can drive the second bracket 30 to move the switch 40 closer to the first bracket 20. When the switch 40 is stopped by the first bracket 20, the switch 40 triggers the press confirmation function. At this time, the first damping element 71 undergoes elastic deformation, thereby enabling the rolling element 50 to perform the corresponding function adjustment. This avoids the problem of incorrect adjustment caused by the user's misoperation of the roller 51 and the roller 51 not reaching the preset torque force, thus improving the precise control performance of the electronic device 100. Furthermore, the first damping element 71 generates a continuous and gentle frictional resistance between the second bracket 30 and the first bracket 20. This resistance makes the user feel that the rolling element 50 is no longer light and loose, but rather smooth yet stable and delicate. The resistance and the ability of the first damping element 71 to absorb the impact energy between the second bracket 30 and the first bracket 20 improve the human-machine operation experience. On the other hand, when the user stops applying the preset torque force to the rolling element 50, the first damping element 71 restores its elastic deformation. As a result, the second bracket 30 is driven by the elastic force of the first damping element 71 to move the switch 40 away from the first bracket 20, thereby realizing the reset function of the rolling element 50. This facilitates the next adjustment of the rolling element 50 and avoids damage caused by the switch 40 being in a pressed state for a long time. Furthermore, the first damping element 71 can also eliminate the assembly gap between the first bracket 20 and the second bracket 30, preventing the second bracket 30 from shaking. This ensures that the roller 51 is in a pre-tightened state regardless of whether the user is operating it, improving the user's operating feel.

[0051] The first damping element 71 provides a damping force to the second support 30, moving it away from the first support 20, thereby enabling the first damping element 71 to reset the second support 30. The first damping element 71 can be configured as at least one of a plastic structure, a rubber structure, or a thermoplastic elastomer structure. The first damping element 71 is a ring-shaped structure. Exemplarily, in this embodiment, the first damping element 71 is configured as a rubber ring. Of course, in some embodiments, the first damping element 71 can also be configured as an elastic element such as a spring, a sheet, or a sponge.

[0052] The first damping element 71 is configured as an O-ring. The first damping element 71 abuts against the first support 20 and the second support 30 radially. Understandably, the existing first damping element is configured as a sponge. The sponge is very soft in the initial stage, and the force increases slowly. However, when the sponge is compressed to a certain extent, most of the internal pores are flattened, and the material density increases sharply. The reaction force will suddenly increase, so that the curve of reaction force versus compression displacement is non-linear. As a result, when the button 2 is pressed all the way down, the user may feel a hard impact, like hitting a wall, and the sponge's rebound will be weak and sluggish. Therefore, in this embodiment, the first damping element 71 is configured as an O-ring. On the one hand, when the first damping element 71 is subjected to an external force, the O-ring will undergo continuous and smooth elastic deformation, and the reaction force generated by the O-ring and the curve of compression displacement usually have a good linear or near-linear relationship, so that the button 2 has a smooth and responsive feel, and the force of the button 2 increases evenly during the pressing process without any abruptness. After reaching the trigger point, the rebound is also rapid and linear. On the other hand, the O-ring can be secured or inserted into the groove by its own elastic tension. The installation position of the O-ring is precise and the installation is secure, avoiding the problems of increased cost and easy displacement or detachment caused by the existing foam that needs to be glued and fixed with adhesive. Furthermore, the O-ring is usually made of silicone or intersecting materials to give it good fatigue resistance and aging resistance. Thus, the O-ring will not undergo plastic deformation or breakage after repeated compression and rebound, avoiding the problem that the internal pore structure of the foam will gradually break and collapse under repeated compression, leading to permanent compression deformation.

[0053] The first damping element 71 has an abutment surface 7101 that abuts against the first bracket 20. The abutment surface 7101 is an arc-shaped surface that protrudes outward from the first damping element 71 toward the first bracket 20. Understandably, when the abutment surface 7101 is flat, the contact area and friction between the first damping element 71 and the first bracket 20 are unstable, thereby reducing the user's operating feel. Furthermore, the edge of the flat damping surface generates a large static friction force with the contact surface of the first bracket 20 when the movement begins or changes direction, resulting in a large force required when initially pressing the rolling element 50, and it is easy to apply too much force, causing over-adjustment and resulting in a lack of responsiveness. Therefore, when the second support 30 swings relative to the first support 20, the contact between the arc-shaped contact surface 7101 of the first damping member 71 and the first support 20 changes from point contact or extremely narrow line / surface contact to a wider area contact. On the one hand, this makes the relationship between the deformation and reaction force of the first damping member 71 under pressure (i.e., the force-displacement curve) more linear and predictable. That is, the degree of deformation of the first damping member 71 changes with the magnitude of the force in a gradient manner. Consequently, the user will feel a uniform and stable damping force throughout the entire operating stroke of the rolling member 50, without abrupt changes, thus improving the user's operating feel. On the other hand, the arc-shaped contact surface 7101 has no sharp edges, and the contact point moves continuously and smoothly, improving the timeliness and precise control of the rolling member 50. Exemplarily, in this embodiment, the first damping member 71 is a cylindrical annular body. For example, the shape of the first damping member 71 is a swimming ring or a donut. Specifically, the longitudinal cross-sectional area of ​​the first damping member 71 is circular or elliptical. The first damping element 71 has a circular cross-sectional area.

[0054] Button 2 also includes a connecting shaft 72. The connecting shaft 72 is connected to the second bracket 30, and the first damping element 71 is sleeved on the outside of the connecting shaft 72 and connected to the second bracket 30 through the connecting shaft 72. Thus, by setting the first damping element 71 to be sleeved on the outside of the connecting shaft 72, the stability of the damping force generated by the first damping element 71 and the consistency of the feel are improved, and the problems of abnormal friction, accelerated wear, or even functional failure caused by the first damping element 71 shaking, rolling, or twisting on the second bracket 30 are avoided, thereby achieving precise positioning and stable fixation of the first damping element 71.

[0055] The second bracket 30 has a limiting groove 305 on its outer side wall facing away from the encoder 60. The second bracket 30 also has a connecting hole 306 communicating with the limiting groove 305. A first damping element 71 is disposed within the limiting groove 305. A connecting shaft 72 passes through the connecting hole 306 and the first damping element 71. Thus, the limiting groove 305 and the connecting shaft 72 can limit the installation position of the first damping element 71 on the second bracket 30. On the one hand, this improves the reliability of the connection between the first damping element 71 and the second bracket 30, allowing the first damping element 71 to provide reliable reset force to the second bracket 30. On the other hand, the first damping element 71 has buffering and shock absorption functions; when the user rotates the roller 51 quickly or forcefully, the first damping element 71 absorbs the impact and vibration generated by the second bracket 30, reducing the noise generated when the rolling element 50 rotates relative to the second bracket 30. Furthermore, the first damping element 71 is detachably connected to the second bracket 30 via the connecting shaft 72, thereby improving assembly convenience and reliability, and facilitating the maintenance of the first damping element 71.

[0056] In some embodiments, the button 2 further includes at least one second damping element 73. Each second damping element 73 is disposed at the end of the second bracket 30 away from the encoder 60, and at the top and / or bottom of the second bracket 30, and each second damping element 73 elastically abuts against the second bracket 30 and the first bracket 20. Specifically, each second damping element 73 is located between the second bracket 30 and the first bracket 20 in the third direction Z, which is perpendicular to the first direction X and the second direction Y. Therefore, by setting at least one of the second damping elements 73 on the third direction Z of the second bracket 30 and the first bracket 20, wobbling during assembly between the second bracket 30 and the first bracket 20 is prevented, improving the reliability and stability of the connection between the second bracket 30 and the first bracket 20. On the other hand, the second damping element 73 has the function of buffering and shock absorption. When the user rotates the roller 51 quickly or forcefully, the second damping element 73 absorbs the impact and vibration generated by the second bracket 30, reducing the noise generated when the roller 50 rotates relative to the second bracket 30. Furthermore, the setting of the second damping element 73 can compensate for the assembly tolerance between the first bracket 20 and the second bracket 30, so that the various parts of the button 2 can obtain a consistent and compact feel after assembly, and reduce the extreme requirements for the machining accuracy of the parts, improving the production yield and product consistency. Exemplarily, in this embodiment, the number of second damping elements 73 is set to two, and the two second damping elements 73 are respectively sleeved on the two second limiting parts 32 provided on the second bracket 30. Of course, in some embodiments, the number of second damping elements 73 may be set to one or more, and this application does not specifically limit the number of second damping elements 73.

[0057] The second damping element 73 can be configured as at least one of a plastic structure, a rubber structure, or a thermoplastic elastomer structure. The second damping element 73 has a ring-shaped structure. Exemplarily, in this embodiment, the second damping element 73 is a rubber ring. The structure of the second damping element 73 is similar to that of the first damping element 71, and will not be described again here.

[0058] Each second damping element 73 is sleeved on the outside of the second limiting portion 32 or the first limiting portion 24. Exemplarily, in this embodiment, each second damping element 73 is sleeved on the outside of the second limiting portion 32. Therefore, by sleeved on the outside of the second limiting portion 32, the second damping element 73 can continuously provide damping force throughout the entire stroke of the second bracket 30 rotating relative to the first bracket 20. Furthermore, when the second bracket 30 moves to its limit position, the second damping element 73 can buffer the hard impact between the ends of the second and first limiting portions, improving the tactile feel and the overall compactness of the button 2. Of course, in some embodiments, the second damping element 73 can also be independently disposed from the second limiting portion 32 or the first limiting portion 24, that is, the second damping element 73 can also be spaced apart from the second limiting portion 32 or the first limiting portion 24. For example, the second damping element 73 can be fixed to the first bracket 20 or the second bracket 30 by snap-fit ​​or adhesive bonding; this application does not impose specific limitations.

[0059] The second damping element 73 is configured as an O-ring, and the second damping element 73 abuts against the first bracket 20 or the second bracket 30 along its axial direction. Therefore, in this embodiment, the second damping element 73 is configured as an O-ring, and the second damping element 73 abuts against the first bracket 20 or the second bracket 30 along its axial direction. This allows a soft frictional force to be formed between the second damping element 73 and the first bracket 20 and the second bracket 30, parallel to the radial direction of the second damping element 73. Consequently, when the second limiting part 32 moves within the first limiting part 24, the second damping element 73 can isolate the hard friction between the first bracket 20 and the second bracket 30, thereby eliminating abnormal noise and reducing wear. Furthermore, the second damping element 73 provides a damped feel, thus optimizing the tactile experience and improving the perceived quality.

[0060] For example, in this embodiment, the first bracket 20 is provided with a movable slot 201. The second bracket 30 and the switch 40 are movably embedded in the movable slot 201. Thus, the second bracket 30 and the first bracket 20 are at least partially nested, which on the one hand improves the structural compactness of the button 2 and realizes the miniaturization design of the button 2; on the other hand, the switch 40 is hidden in the movable slot 201, thereby avoiding the problem of the switch 40 interfering with the housing 1 or other components when the second bracket 30 moves relative to the first bracket 20 in the first direction X, and avoiding the problem of the switch 40 being contaminated by the external environment, thus extending the service life of the switch 40.

[0061] The second bracket 30 is also provided with a first shaft hole 303 and a second shaft hole 304. The two ends of the rotating shaft 52 are rotatably disposed in the first shaft hole 303 and the second shaft hole 304, respectively. The first shaft hole 303 and the second shaft hole 304 are connected to the movable groove 201. In this embodiment, the first shaft hole 303 is configured as a circular hole, and the second shaft hole 304 is configured as a semi-circular hole, thereby facilitating the assembly of the rotating shaft with the second bracket 30. Of course, in some embodiments, both the first shaft hole 303 and the second shaft hole 304 can be configured as circular holes or semi-circular holes; this application does not specifically limit this.

[0062] One of the first bracket 20 and the second bracket 30 is provided with a guide groove 202. The other of the first bracket 20 and the second bracket 30 is provided with a slide rail 302 that slides in conjunction with the guide groove 202. The extension direction of the guide groove 202 is the direction of movement of the second bracket 30. Thus, the sliding engagement of the guide groove 202 and the slide rail 302 improves the stability and reliability of the movement of the second bracket 30 relative to the first bracket 20, thereby improving the accuracy and reliability of the trigger position of the switch 40.

[0063] Exemplarily, in this embodiment, the guide groove 202 is disposed on the inner sidewall of the first support 20 and communicates with the movable groove 201. The slide rail 302 is disposed on the outer sidewall of the second support 30. Specifically, the first support 20 has guide grooves 202 disposed on its two inner sidewalls in the second direction Y, and the second support 30 has two slide rails 302 disposed on its two outer sidewalls in the second direction Y, thereby avoiding interference between the slide rails 302 and the guide grooves 202 and the roller 51 during rotation. Of course, in some embodiments, the slide rails 302 are disposed on the inner sidewall of the first support 20 and communicate with the movable groove 201. The guide grooves 202 are disposed on the outer sidewall of the second support 30. The first support 20 has at least one guide groove 202 disposed on at least one inner sidewall in the third direction Z, and the second support 30 has at least one slide rail 302 disposed on at least one outer sidewall in the second direction Y. The number and placement of the guide grooves 202 and the slide rails 302 can be set according to actual conditions, and this embodiment does not impose specific limitations.

[0064] Please refer to the following: Figure 2 and Figure 4 , Figure 4 yes Figure 1 A side view of a partial structure of the electronic device 100 in the device; Figure 5 yes Figure 4 A partial structural view of the electronic device 100 along AA. In some embodiments, the button 2 further includes a third damping member 74. The third damping member 74 is sleeved on the outside of the rotating shaft 52 and located between the roller 51 and the encoder 60. Therefore, on the one hand, the third damping element 74 has the function of buffering and shock absorption. When the user rotates the roller 51 quickly or forcefully, the third damping element 74 absorbs the impact and vibration generated by the rolling element 50, thereby preventing these rough forces from being directly transmitted to the delicate and fragile internal encoder 60 springs and electrical contacts, thus extending the service life of the encoder 60. On the other hand, the third damping element 74 can filter out the high-frequency vibrations generated by slight hand tremors or small gaps in the mechanism, thereby preventing these small vibrations from being misread as valid rotation signals by the encoder 60. Furthermore, the third damping element 74 helps stabilize the rotation speed of the roller 51, preventing the roller 51 from sliding freely for too long due to inertia, so that the encoder 60 can record each rotation signal more clearly and accurately, thereby improving the signal quality of the encoder 60, enhancing the fine adjustment function of the rolling element 50, and reducing the noise generated by the roller 51 during rotation. The third damping element 74 can be configured as at least one of a plastic structure, a rubber structure, or a thermoplastic elastomer structure. The third damping element 74 has a ring-shaped structure. For example, in this embodiment, the third damping element 74 is configured as a rubber ring.

[0065] In some embodiments, a first limiting block 521 is provided on the rotating shaft 52, and a third damping member 74 is sandwiched between the first limiting block 521 and the encoder 60, thereby preventing the third damping member 74 from shifting and thus improving the damping effect of the third damping member 74.

[0066] For example, in this embodiment, a second limiting block 522 is also provided on the rotating shaft 52, and the second bracket 30 is limited between the first limiting block 521 and the second limiting block 522 in the second direction Y, thereby preventing the second bracket 30 from shaking relative to the first bracket 20 in the second direction Y and reducing noise. The first limiting block 521 and the second limiting block 522 are detachably connected to the rotating shaft 52, thereby facilitating the assembly and disassembly of the rotating shaft 52 and the second bracket 30.

[0067] In some embodiments, an anti-rotation rod 523 is also provided on the side of the rotating shaft 52 near the encoder 60. The encoder 60 includes a mounting part 61 and an encoding part 62. The mounting part 61 is fixedly disposed relative to the second bracket 30, and the encoding part 62 is rotatably connected to the mounting part 61 and is provided with an anti-rotation hole 601 that cooperates with the anti-rotation rod 523. Thus, the encoding part 62 of the encoder 60 can rotate with the rotation of the rotating shaft, thereby facilitating the encoder 60 to identify and confirm the adjustment parameters corresponding to the rolling element 50, thereby realizing the adjustment functions of the button 2 for volume / song switching / mode change, etc., and improving the assembly and disassembly efficiency of the rotating shaft 52 and the encoder 60. Of course, in some embodiments, the rotating shaft 52 and the encoding part 62 can be fixedly connected together by a threaded connection or mounting structure, and this application embodiment does not make specific limitations.

[0068] In some embodiments, the first bracket 20 is further provided with a stepped groove 203 that communicates with the movable groove 201, and the encoder 60 is disposed in the stepped groove 203. Thus, the first bracket 20, the second bracket 30, the rolling element 50, the switch 40 and the encoder 60 are connected to form an integral structure, thereby realizing the modular design of the button 2, improving the overall structural compactness of the electronic device 100, and facilitating the maintenance, replacement and other operations of the button 2.

[0069] Please refer to the following: Figure 2 , Figure 6 and Figure 7 , Figure 6 yes Figure 1 A second exploded view of button 2 of electronic device 100. Figure 7 yes Figure 4 The partial structure of the electronic device 100 is shown in a cross-sectional view along BB. The switch 40 includes a fixed contact portion 41 and a movable contact portion 42. The fixed contact portion 41 is connected to the encoder 60 and mounted on the second bracket 30. The movable contact portion 42 is located on the side of the fixed contact portion 41 facing the first bracket 20. When the travel distance of the second bracket 30 relative to the first bracket 20 is greater than or equal to a preset travel distance, the first bracket 20 presses against the movable contact portion 42; when the travel distance of the second bracket 30 relative to the first bracket 20 is less than the preset travel distance, the first bracket 20 disengages from pressing against the movable contact portion 42. Thus, on the one hand, the switch 40 can switch between a pressed state and a non-pressed state, thereby avoiding damage caused by the switch 40 being in a pressed state for a long time, improving the reliability and service life of the switch 40; on the other hand, the second bracket 30 can move the switch 40 away from or closer to the first bracket 20, thereby binding the mechanical position of the switch 40 with the electronic signal to achieve automatic detection of the switch 40's state and function switching, simplifying the structure of the button 2 and saving space.

[0070] In some embodiments, a pressing protrusion 25 is provided on the first bracket 20 at the position corresponding to the switch 40. When the second bracket 30 moves relative to the first bracket 20 to the first position, the pressing protrusion 25 presses against the switch 40; when the second bracket 30 moves relative to the first bracket 20 to the second position, the pressing protrusion 25 disengages from the switch 40. Therefore, based on the fact that a pressing protrusion 25 is provided at the position of the first bracket 20 corresponding to the switch 40, on the one hand, the pressing protrusion 25 can accurately apply pressure to the center position of the switch 40 contact when pressing the switch 40, thereby improving the accuracy and consistency of the triggering action of the switch 40; on the other hand, the pressing protrusion 25 shortens the travel of the second bracket 30 relative to the first bracket 20, thereby efficiently converting the movement of the second bracket 30 into vertical pressure on the switch 40. Even if there is a slight error in the total travel of the second bracket 30, the pressing protrusion 25 can compensate by early contact and concentrated pressure, improving the reliability of the switch 40 being triggered; furthermore, because the contact area of ​​the pressing protrusion 25 is small, it has a certain degree of self-adaptability. Even if there is a slight deviation in the assembly angle, the arc surface of the pressing protrusion 25 can fit well with the surface of the switch 40, ensuring that the pressure is concentrated at one point, thereby reducing the stringent requirements for the alignment and assembly accuracy of the first bracket 20 and the second bracket 30 and improving the yield rate.

[0071] In some embodiments, the pressure protrusion 25 may be configured as an arc-shaped protrusion; or, the surface of the pressure protrusion 25 and / or the surface of the switch 40 may be provided with a friction-resistant coating, thereby reducing the friction between the pressure protrusion 25 and the switch 40 and extending the service life of the switch 40.

[0072] In some embodiments, the second bracket 30 is provided with a positioning groove 307 on its outer side wall in the direction of movement, and the switch 40 is installed in the positioning groove 307. Thus, the positioning groove can define the installation position of the switch 40 on the second bracket 30, improving assembly efficiency and the overall compactness of the button 2.

[0073] Please refer to it again. Figure 2 and Figure 5For example, in this embodiment, the rolling element 50 includes a first rolling portion 511 and two second rolling portions. The two second rolling portions are smoothly connected to both ends of the first rolling portion 511 in the second direction Y. The area of ​​the outer contour of the radial cross-section of the first rolling portion 511 remains constant along the second direction Y, while the area of ​​the outer contour of the radial cross-section of each second rolling portion gradually decreases along the second direction Y in a direction away from the first rolling portion 511. Thus, on the one hand, the first rolling portion 511 provides a bearing area for user operation, improving the tactile feedback between the user and the rolling element 50 and enhancing the user experience; on the other hand, the second rolling portions at both ends of the first rolling portion 511 are arranged in a frustum-shaped configuration, thereby enabling the rolling element 50 to automatically center and correct its deviation relative to the rotation axis 52, reducing the risk of impact and edge wear on the roller 51, and extending the service life of the roller 51. Of course, in some embodiments, the rolling element 50 can also be configured as a cylindrical or prismatic structure; this application does not specifically limit this.

[0074] In some embodiments, the button 2 further includes an encoder 60 and a circuit board 80. The circuit board 80 is electrically connected to the switch 40 and the encoder 60. Therefore, by electrically connecting the circuit board 80 to the switch 40 and the encoder 60, the reliability of the electrical connection between the switch 40, the encoder 60 and the circuit board 80 is improved, as is the flexibility of adjusting the installation position of the switch 40 and the encoder 60. This simplifies the structure and assembly process of the button 2 and improves production efficiency.

[0075] One end of the rotating shaft 52 is rotatably connected to the second bracket 30, and the other end of the rotating shaft 52 is rotatably connected to the encoder 60. Thus, when the user presses the scroll 50, most of the pressing force is guided to the second end 320, away from the encoder 60. The roller 51, after being pressed, can drive the second bracket 30 to trigger the switch 40. This causes the scroll 50 to move relative to the second bracket 30, moving the second bracket 30 and the switch 40 towards the side closer to the first bracket 20, thereby triggering the press confirmation function of the switch 40. This achieves mechanical decoupling of the rotation and pressing functions of the button 2, and avoids incorrect adjustment caused by user misoperation of the roller 51. It improves the precise control performance of the electronic device 100 and enhances the reliability and lifespan of the encoder 60.

[0076] Switch 40 is used to acquire pressing information and send it to circuit board 80 when the scroll member 50 is pressed. Upon receiving the pressing information, circuit board 80 generates a corresponding instruction and sends the instruction to the earpiece of electronic device 100. The pressing information may include pressing duration, number of presses, etc.

[0077] In some embodiments, when the circuit board 80 receives the press information, it sends a corresponding audio playback state control command to the headphones of the electronic device 100, so that the headphones of the electronic device 100 control the audio playback state based on the audio playback state control command. For example, when audio is currently playing, a short press of the scroll bar 50 once stops the audio playback; when the current audio is paused, a short press of the scroll bar 50 once resumes the audio playback; a short press of the scroll bar 50 twice switches the headphones to the next audio; a short press of the scroll bar 50 three times switches the headphones to the previous audio; a long press of the scroll bar 50 for a first duration switches the noise control of the headphones, such as switching between noise reduction mode, transparency mode, and noise-off mode, where the first duration includes multiple durations corresponding to noise reduction mode, transparency mode, and noise-off mode respectively; a long press of the scroll bar 50 for a second duration switches the current audio playback effect.

[0078] The encoder 60 is used to acquire rotation information of the rolling element 50 as it rotates and send it to the circuit board 80. Upon receiving the rotation information, the circuit board 80 generates a corresponding instruction and sends the instruction to the earpiece of the electronic device 100. The rotation information may include rotation angle, rotation speed, rotation direction, etc.

[0079] In some embodiments, when the circuit board 80 receives the rotation information, it sends a volume adjustment command to the headset of the electronic device 100, causing the headset of the electronic device 100 to adjust the audio or call volume based on the volume adjustment command. For example, rotating the scroll member 50 clockwise decreases the volume, and rotating it counterclockwise increases the volume; the amount of volume decrease and increase is related to the rotation angle.

[0080] In some embodiments, the encoder 60 may be an incremental encoder, an absolute encoder, a magnetic encoder, a photoelectric encoder, etc.

[0081] It should be noted that the circuit board 80 can set the instructions of the function modules for controlling electronic devices according to actual needs, such as rotation information or pressing information.

[0082] Exemplarily, in this embodiment, the circuit board 80 is configured as a flexible circuit board. The circuit board 80 includes a first circuit board 81, a second circuit board 82, and a third circuit board 83. The first circuit board 81 is electrically connected to the switch 40. The second circuit board 82 is electrically connected to the encoder 60 and the first circuit board 81, and is bent relative to the first circuit board 81. One end of the third connecting portion is connected to at least one of the first circuit board 81 and the second circuit board 82, and the other end of the third connecting portion is connected to the main circuit board of the electronic device 100. The first bracket 20 has a wiring hole on its side wall in the second direction Y, and the third circuit board 83 of the flexible circuit board 80 passes through the wiring hole. Of course, in some embodiments, the third circuit board 83 of the flexible circuit board 80 may be omitted, that is, the flexible circuit board 80 includes the first circuit board 81 and the second circuit board 82, which will not be described again in this embodiment.

[0083] Understandably, in this embodiment, since the switch 40 and encoder 60 are separately disposed at different positions on the second bracket 30, and the button 2 is small in size, when the electronic device 100 such as the earphone case or mobile phone uses the button 2 of this embodiment, the miniaturization design of the electronic device 100 can be achieved, and the problems of seesaw motion and weak perception of the movement difference of the button are easily encountered during the user's pressing and adjustment process. In addition, the problem of insensitive or low accuracy of the sensing function caused by the small size of the button 2 is avoided, thus improving the hot-lifting operation experience.

[0084] The embodiments of this application have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A button, characterized in that, include: First bracket, second bracket, switch and rolling element; The rolling element includes a roller and a rotating shaft, the rotating shaft being rotatably connected to the second bracket, and the roller being fixedly connected to the rotating shaft; The switch is disposed between the first bracket and the second bracket; The second bracket is movably connected to the first bracket and is provided with a receiving groove for accommodating the roller; The second bracket has a first end and a second end that are axially opposite each other along the rotation axis. During the pressing of the roller, the travel of the second bracket at the second end is greater than the travel at the first end.

2. The button as described in claim 1, characterized in that, The second bracket is rotatably connected to the first bracket at the first end, and the second bracket is movably connected to the first bracket at the second end.

3. The button as described in claim 1, characterized in that, The first bracket is provided with a first limiting part, and the second bracket is provided with a second limiting part at the second end. The first limiting part and the second limiting part slide together and are used to limit the movement stroke of the second bracket relative to the first bracket.

4. The button as described in claim 1, characterized in that, The button further includes a first damping element, which is disposed at the second end and located between the first bracket and the second bracket. When the first damping element is in a pressed state, the first damping element elastically abuts against the second bracket and the first bracket in the direction of movement of the second bracket.

5. The button as described in claim 4, characterized in that, The first damping element is configured as an O-ring, and the first damping element abuts against the first bracket and the second bracket along the radial direction of the first damping element.

6. The button as described in claim 4, characterized in that, The button also includes a connecting shaft, which is connected to the second bracket. The first damping element is sleeved on the outside of the connecting shaft and connected to the second bracket through the connecting shaft.

7. The button as described in claim 3, characterized in that, The button further includes at least one second damping element, each second damping element being sleeved on the outside of the second limiting portion or the first limiting portion, and each second damping element elastically abutting between the second bracket and the first bracket.

8. The button as described in claim 7, characterized in that, The second damping element is configured as an O-ring, and the second damping element abuts against the first bracket or the second bracket along the axial direction of the second damping element.

9. The button as described in any one of claims 1-8, characterized in that, The first bracket is provided with a movable groove, and the second bracket and the switch are movably embedded in the movable groove.

10. The button as described in any one of claims 1-8, characterized in that, One of the first bracket and the second bracket is provided with a guide groove, and the other of the first bracket and the second bracket is provided with a slide rail that slides in cooperation with the guide groove. The extension direction of the guide groove is the movement direction of the second bracket.

11. The button as described in any one of claims 1-8, characterized in that, The button also includes an encoder and a circuit board. The encoder is rotatably connected to the rotating shaft, and the circuit board is electrically connected to the switch and the encoder.

12. An electronic device, characterized in that, The device includes a housing and a button as described in any one of claims 1-11. The housing has a mounting groove, and the side wall of the housing has a through hole communicating with the mounting groove. The button is mounted in the mounting groove, and the rolling element of the button is rotatably disposed through the through hole and protrudes relative to the housing.

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