Key structure

Abstract

The present application discloses a key structure, which comprises a seat body and a linkage mechanism. The linkage mechanism comprises a plurality of links movably coupled relative to each other, and the plurality of links at least comprises two links rotatably positioned on the seat body. When a pressing force is applied to the linkage mechanism, the plurality of links are connected to each other to limit the range of rotation of the plurality of links relative to the seat body. The key structure of the present application can reduce the abnormal sound generated by the pressing operation while further providing the segmental feeling of the pressing operation.

Description

[0001] Cross-reference to related applications

[0002] This application claims priority to Chinese Patent Application No. 202110718782.2, filed on June 28, 2021, entitled "Button Structure", the entire contents of which are incorporated herein by reference. Technical Field

[0003] This invention relates to a button structure, and more specifically, to a mute button structure. Background Technology

[0004] The tactile feel of buttons can generally be categorized as either tactile or non-tactile. Besides the tactile feel, the sound of the buttons is also a significant factor affecting the user experience. Currently, the demand for quiet buttons is often unmet in the market. One reason is that silent switches are not very effective at quieting, and often, achieving silence comes at the expense of tactile feedback. This is because producing tactile feedback on buttons inevitably generates noise.

[0005] Furthermore, most current button silent designs achieve their effect by using cushioning materials (such as soft materials) to stop the noise at the point of contact. However, even with cushioning materials, sound can still be generated due to contact or impact. Summary of the Invention

[0006] In view of the problems in the prior art, the present invention provides a button structure to solve the above problems.

[0007] Therefore, the technical problem to be solved by the present invention is to provide a button structure, the button structure comprising: a base; and a linkage mechanism comprising a plurality of links, the plurality of links being movably coupled relative to each other, the plurality of links including at least two links, the at least two links being rotatably positioned on the base, wherein, when a pressing force is applied to the linkage mechanism, the plurality of links are linked to each other to limit the range of rotation of the plurality of links relative to the base.

[0008] As an optional technical solution, the plurality of links includes a first link and a second link. The first link includes a first pivot portion, which is coupled to the seat body to form a first rotating shaft. The second link includes a second pivot portion, which is coupled to the seat body to form a second rotating shaft. The first link and the second link are coupled to form a coupling shaft. When the pressing force is applied to the first link, the first link rotates about the first rotating shaft in a first direction and drives the coupling shaft to move relative to the seat body, so that the second link rotates about the second rotating shaft in a second direction. The first direction is the same as or opposite to the second direction.

[0009] As an optional technical solution, the first connecting portion is connected to the first pivoting portion and is located at one end of the first connecting rod, the second connecting portion is connected to the second pivoting portion and is located at one end of the second connecting rod, and the first connecting portion and the second connecting portion are sleeved with each other to form the coupling shaft.

[0010] As an optional technical solution, the first connecting portion includes two first connecting segments, the two first connecting segments are arranged at opposite ends of the first pivoting portion along the first rotation axis, the second connecting portion includes two second connecting segments, the two second connecting segments are arranged at opposite ends of the second pivoting portion along the second rotation axis, the two second connecting segments are respectively coupled to the corresponding two first connecting segments, and at least one of the two first connecting segments and the two second connecting segments is elastically deformed when the first connecting rod drives the second connecting rod to move.

[0011] As an optional technical solution, the second connecting rod further includes a hand feeling actuating portion, the hand feeling actuating portion is connected to the second pivoting portion and is movably coupled to the first pivoting portion, and the hand feeling actuating portion moves relative to the first pivoting portion when the first connecting rod drives the second connecting rod to move.

[0012] As an optional technical solution, the hand feeling actuating portion has a protruding portion, the protruding portion is arranged corresponding to the first pivoting portion, and the protruding portion interferes with the first pivoting portion when the hand feeling actuating portion moves relative to the first pivoting portion.

[0013] As an optional technical solution, the key structure further includes a reset member, the reset member is arranged in the seat body, wherein when the pressing force is released, the reset member provides a restoring force, so that the plurality of connecting rods are connected to each other to return to the position before pressing.

[0014] As an optional technical solution, the reset member includes an elastic member, the elastic member has a positioning portion and an acting portion, the positioning portion is positioned in the seat body, and the acting portion extends corresponding to one of the plurality of connecting rods, and when the pressing force is applied to the connecting rod mechanism, the connecting rod mechanism presses against the acting portion to drive the acting portion to move relative to the positioning portion.

[0015] As an optional technical solution, the key structure further includes a magnetic unit, wherein the magnetic unit includes a first magnetic member and a second magnetic member, the first magnetic member is arranged in the connecting rod mechanism, and the second magnetic member is arranged corresponding to the first magnetic member to generate a magnetic attraction force, when the pressing force is applied to the connecting rod mechanism, the connecting rod mechanism drives the first magnetic member to move away from the second magnetic member, and when the pressing force is released, the magnetic attraction force causes the connecting rod mechanism to drive the first magnetic member to move close to the second magnetic member to return to the position before pressing.

[0016] As an optional technical solution, the key structure further comprises a switch unit, which is arranged corresponding to the linkage mechanism. When the pressing force is applied to the linkage mechanism, the linkage mechanism moves relative to the seat body to trigger the switch unit.

[0017] The present application also provides a key structure, which comprises a seat body, a movable member rotatably arranged in the seat body, and a magnetic unit comprising a first magnetic member and a second magnetic member. The first magnetic member is arranged in the movable member, and the second magnetic member is arranged corresponding to the first magnetic member to generate a magnetic attraction force. When a pressing force is applied to the movable member, the movable member drives the first magnetic member to move away from the second magnetic member. When the pressing force is released, the magnetic attraction force makes the movable member drive the first magnetic member to move close to the second magnetic member to return to the position before pressing.

[0018] As an optional technical solution, the magnetic unit further comprises a third magnetic member arranged along the movement path of the movable member with the second magnetic member. When the pressing force is applied to the movable member, the movable member drives the first magnetic member to move, so that the first magnetic member moves away from the second magnetic member and approaches the third magnetic member.

[0019] As an optional technical solution, the key structure further comprises a reset member arranged in the seat body. When the pressing force is released, the reset member provides a restoring force to make the movable member drive the first magnetic member to return to the position before pressing.

[0020] Compared with the prior art, the key structure of the present application comprises a seat body and a linkage mechanism, wherein the linkage mechanism comprises a plurality of links which are movably coupled relative to each other, and the plurality of links at least comprises two links which are rotatably positioned in the seat body, respectively. When a pressing force is applied to the linkage mechanism, the plurality of links are connected to each other to limit the range of rotation of the plurality of links relative to the seat body. The key structure of the present application can reduce the abnormal sound generated by pressing operation and further provide the feeling of segmental operation.

[0021] The present application is described in detail below in conjunction with the drawings and specific embodiments, but is not limited to the present application. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figures 1A-1C The exploded view, the partial exploded view and the assembly view of the key structure of the first embodiment of the present application, respectively.

[0023] Figures 2A-2C The operation schematic diagram of the key structure of the present application. Figure 1C The operation schematic diagram of the key structure of the present application. Figures 2A-2C The key structure is shown in the unpressed state, the pressing transition state and the pressing end point state, respectively.

[0024] Figure 3Display Figure 1C The deformation schematic view of the linkage mechanism of the key structure of the present application in the un-pressed state, the transition state and the pressed end point state.

[0025] Figures 4A-4C The exploded view, the partial exploded view and the assembly view of the key structure of the second embodiment of the present application respectively.

[0026] Figures 5A-5C The operation schematic view of the key structure of the present application. Figure 4C The un-pressed state, the transition state and the pressed end point state of the key structure respectively. Figures 5A-5C The un-pressed state, the transition state and the pressed end point state of the key structure respectively.

[0027] Figure 6A The exploded view and the assembly view of the key structure of the present application. Figure 6B

[0028] The operation schematic view of the key structure of the present application. Figure 7A The un-pressed state and the pressed end point state of the key structure respectively. Figure 7B The un-pressed state and the pressed end point state of the key structure respectively. Figure 6B The operation schematic view of the key structure of the present application. Figure 7A The un-pressed state and the pressed end point state of the key structure respectively. 7B The un-pressed state and the pressed end point state of the key structure respectively.

[0029] Figure 8A The exploded view and the assembly view of the key structure of the present application. Figure 8B

[0030] The operation schematic view of the key structure of the present application. Figures 9A-9C The un-pressed state, the transition state and the pressed end point state of the key structure respectively. Figure 8B The un-pressed state, the transition state and the pressed end point state of the key structure respectively. Figures 9A-9C The un-pressed state, the transition state and the pressed end point state of the key structure respectively.

[0031] Figures 10A-10D The exploded view, the assembly view, the bottom view and the sectional view of the key structure of the fifth embodiment of the present application respectively.

[0032] Figure 11A The operation schematic view of the key structure of the present application. Figure 11B The un-pressed state and the pressed end point state of the key structure respectively. Figure 8A The un-pressed state and the pressed end point state of the key structure respectively. Figure 11A The un-pressed state and the pressed end point state of the key structure respectively. Figure 11B The un-pressed state and the pressed end point state of the key structure respectively.

[0033] Figure 12A The exploded view and the assembly view of the key structure of the sixth embodiment of the present application respectively. Figure 12B

[0034] The operation schematic view of the key structure of the present application. Figure 13A The un-pressed state and the pressed end point state of the key structure respectively. Figure 13B The un-pressed state and the pressed end point state of the key structure respectively. Figure 12B The un-pressed state and the pressed end point state of the key structure respectively.Figure 13A and Figure 13B The button structure is displayed in the unpressed state and the pressed-off state, respectively.

[0035] Figure 14 for Figure 12B A schematic diagram illustrating variations in the button structure.

[0036] Figure 15A and Figure 15B for Figure 14 A schematic diagram of the button structure, in which... Figure 15A and Figure 15B The button structure is displayed in the unpressed state and the pressed-off state, respectively.

[0037] Figure 16A and Figure 16B These are exploded views and combined views of the button structure according to the seventh embodiment of the present invention.

[0038] Figure 17A and Figure 17B for Figure 16B The diagram illustrates the operation of the button structure, in which... Figure 17A and Figure 17B The button structure is displayed in the unpressed state and the pressed-off state, respectively.

[0039] Figure 18A and Figure 18B These are schematic diagrams of the housing of the button structure according to an embodiment of the present invention from different perspectives.

[0040] Figure 19A and Figure 19B They are respectively Figure 18A and Figure 18B An exploded view of the housing with a button structure. Detailed Implementation

[0041] To provide a further understanding of the purpose, structure, features, and functions of the present invention, detailed descriptions are provided below with reference to specific embodiments.

[0042] The button structure of the present invention can be applied to any press-type input device (e.g., mouse, keyboard, etc.) or integrated into any suitable electronic device (e.g., buttons on portable electronic devices) to reduce noise generated by pressing operations and further provide a tactile feedback during pressing. The structure and operation of each component of the button structure according to embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0043] Figures 1A-1C These are exploded views, partial exploded views, and combined views of the button structure 1 according to the first embodiment of the present invention. Figures 1A-1CAs shown, in this embodiment, the key structure 1 comprises a housing 10 and a linkage mechanism 20. The linkage mechanism 20 comprises a plurality of links, wherein the plurality of links are movably coupled relative to each other, and the plurality of links comprises at least two links (e.g. a first link 210 and a second link 220) respectively rotatably disposed in the housing 10. When a pressing force is applied to the linkage mechanism 20 (e.g. the first link 210), the plurality of links are interconnected to limit the range of rotation of the plurality of links relative to the housing 10.

[0044] In particular, the base 10 is a component of the positioning linkage 20, and the base 10 has a structure coupled with a plurality of linkages, such that at least two linkages of the plurality of linkages are rotatably positioned in the base 10, respectively. As shown, the base 10 can have a first coupling portion 110 and a second coupling portion 120, and the first coupling portion 110 and the second coupling portion 120 are used to rotatably couple with a first linkage 210 and a second linkage 220, respectively. For example, the base 10 and each linkage (e.g., the first linkage 210 or the second linkage 220) can be rotatably coupled by a coupling structure of a shaft portion and a shaft hole. In other words, one of the base 10 and the linkage (e.g., the first linkage 210 or the second linkage 220) can have a shaft portion structure, and the other of the base 10 and the linkage (e.g., the first linkage 210 or the second linkage 220) can have a shaft hole structure, such that the base 10 and the linkage (e.g., the first linkage 210 or the second linkage 220) are rotatably coupled. In this embodiment, the first coupling portion 110 and the second coupling portion 120 are taken as an example of having a coupling structure of a shaft hole (e.g., 112, 122), and the linkages (e.g., the first linkage 210 and the second linkage 220) can have a corresponding coupling structure of a shaft portion, but are not limited thereto. In other embodiments, the positions of the shaft hole and the shaft portion can be interchanged, such that the first coupling portion 110 and the second coupling portion 120 can have a coupling structure of a shaft portion, and the linkages (the first linkage 210 or the second linkage 220) have a corresponding coupling structure of a shaft hole. In this embodiment, the first coupling portion 110 and the second coupling portion 120 are spaced apart along the Y-axis direction. The first coupling portion 110 includes two shaft holes 112 spaced apart along the X-axis direction, such that the first coupling portion 110 forms an accommodation space 142 between the two shaft holes 112. The second coupling portion 120 includes two shaft holes 122 spaced apart along the X-axis direction, such that the second coupling portion 120 forms a positioning space 124 between the two shaft holes 122. The height of the first coupling portion 110 extending upward from the bottom of the base 10 (i.e., the distance between the shaft hole 112 and the bottom of the base 10) is preferably greater than the height of the second coupling portion 120 extending upward from the bottom of the base 10 (i.e., the distance between the shaft hole 122 and the bottom of the base 10), i.e., the height of the first coupling portion 110 in the Z-axis direction is greater than that of the second coupling portion 120. Furthermore, the bottom of the base 10 can have an opening 130 to allow part of the linkage 20 (e.g., the first linkage 210) to extend in. In addition, corresponding to the arrangement of the return member 30 (to be described later), the base 10 can further have a positioning mechanism corresponding to the return member 30, such as the accommodation space 142, the positioning hole 144 (shown in Figure 2A ), for accommodating / positioning the return member 30.

[0045] In this embodiment, the links of the link mechanism 20 can include a first link 210 and a second link 220, and the first link 210 and the second link 220 are rotatably positioned on the base 10, but not limited thereto. In other embodiments, the link mechanism 20 can include more than two links, and at least two of the links are rotatably positioned on the base 10, so that the links can be connected to each other in response to the pressing force, thereby limiting the range of movement or rotation of the links relative to the base. For example, corresponding to the first coupling portion 110 and the second coupling portion 120 of the base 10, the first link 210 can include a first pivot portion 212, and the second link 220 can include a second pivot portion 222. The first link 210 is coupled to the base 10 (e.g., the first coupling portion 110) by the first pivot portion 212 to form a first rotation axis 101, and the second link 220 is coupled to the base 10 (e.g., the second coupling portion 120) by the second pivot portion 212 to form a second rotation axis 102. In this way, the first link 210 and the second link 220 are rotatably positioned or engaged on the base 10, and are rotatable about the first rotation axis 101 and the second rotation axis 102, respectively. As described above, the height of the first coupling portion 110 in the Z-axis direction is preferably greater than that of the second coupling portion 120, so that the height of the first rotation axis 101 in the Z-axis direction is greater than that of the second rotation axis 102. Furthermore, in this embodiment, the adjacent ends of the first link 210 and the second link 220 are coupled to each other to form a coupling axis 201, so that the first link 210 can drive the second link 220 to move. In the connection direction of the first link 210 and the second link 220 (e.g., the Y-axis direction), the coupling axis 201 is located between the first rotation axis 101 and the second rotation axis 201, so that when the first link 210 moves (or rotates) relative to the base 10, the first link 210 can drive the second link 220 to move (or rotate) in the opposite direction relative to the base 10, and the coupling axis 201 can move (e.g., move up / down) relative to the base 10 in response to the rotation of the first link 210 and the second link 220, but not limited thereto. Depending on the actual application, the coupling position of the two links can be changed so that the two links can move in the same direction relative to the base 10 (e.g., as shown in the embodiment of Figure 12A ). Furthermore, the coupling position of the links is not limited to being between the two rotation axes (e.g., the first rotation axis 101 and the second rotation axis 201) (e.g., as shown in the embodiment of Figure 12A ), and depending on the pressing position, the coupling axis 201 can move towards or away from the base 10 after pressing.

[0046] Specifically, the first link 210 includes a first connecting portion 214, and the second link 220 includes a second connecting portion 224. The first link 210 and the second link 220 are movably coupled by the first connecting portion 214 and the second connecting portion 224 to form the link mechanism 20. For example, the first connecting portion 214 and the second connecting portion 224 are adjacent end portions of the first link 210 and the second link 220, and the first link 210 and the second link 220 can be movably coupled by a coupling structure of a shaft portion and a hole portion. In other words, one of the first link 210 and the second link 220 can have a shaft portion structure, and the other of the first link 210 and the second link 220 can have a hole portion structure, so that the first link 210 and the second link 220 are movably coupled. In this embodiment, the first connecting portion 214 is taken as an example of a shaft portion, and the second connecting portion 224 can include a corresponding hole portion, and the first connecting portion 214 and the second connecting portion 224 are mutually sleeved to form a coupling shaft 201, but the present disclosure is not limited thereto. In other embodiments, the positions of the shaft portion and the hole portion can be interchanged according to actual application, so that the first connecting portion 214 has a hole portion, and the second connecting portion 224 can have a corresponding shaft portion.

[0047] As Figures 1A-1CAs shown, the first connecting portion 214 of the first link 210 connects the first pivot portion 212 and is located at one end (e.g., the right end) of the first link 210, and the second connecting portion 224 of the second link 220 connects the second pivot portion 222 and is located at one end (e.g., the left end) of the second link 220, such that the second connecting portion 224 is opposite to the first connecting portion 214 of the first link 210. That is, the first link 210 and the second link 220 are movably coupled to each other by the first connecting portion 214 and the second connecting portion 224 located at the adjacent ends of the first link 210 and the second link 220. Specifically, the first pivot portion 212 of the first link 210 is a pivot shaft arranged along the X-axis direction, and the first connecting portion 214 includes a first connecting segment 214a and a shaft portion 214b. For example, two first connecting segments 214a are arranged at opposite ends of the first pivot portion 212 along the X-axis direction (i.e., the two first connecting segments 214a are arranged at intervals along the first rotation axis 101), and the two first connecting segments 214a extend from the first pivot portion 212 along the Y-axis direction by a predetermined distance. The shaft portion 214b is arranged at the end of each first connecting segment 214a and away from the first pivot portion 212. In this embodiment, the two shaft portions 214b extend along the X-axis direction towards the outside of the first connecting segment 214a, such that the extension directions of the two shaft portions 214b are opposite to each other, but the disclosure is not limited thereto. According to actual application, the two shaft portions 214b can extend along the X-axis direction towards the inside of the first connecting segment 214a, such that the extension directions of the two shaft portions 214b are towards each other; or the two shaft portions 214b can extend along the X-axis direction towards the inside and the outside of the first connecting segment 214a, respectively, such that the two shaft portions 214b extend in the same direction. In an embodiment, the first connecting portion 214 preferably extends obliquely relative to the first pivot portion 212. For example, the first connecting segment 214a of the first connecting portion 214 extends obliquely downward from the first pivot portion 212, such that the extension direction of the first connecting portion 214 and the extension direction of the first pivot portion 212 are not coplanar.

[0048] Furthermore, the first link 210 can serve as an actuating rod for triggering the switch unit (e.g., 40) in response to a pressing force. Specifically, the first link 210 can include an actuating portion 216, and the first link 210 can move the actuating portion 216 to trigger the switch unit when the first link 210 moves relative to the base 10. For example, the actuating portion 216 can be disposed on the other side of the first pivot portion 212 relative to the first connecting portion 214, and the actuating portion 216 preferably extends downward relative to the first pivot portion 212. In other words, the actuating portion 216 and the first connecting portion 214 are respectively located on opposite sides of the first pivot portion 212 in the Y-axis direction; or the actuating portion 216, the first pivot portion 212, and the first connecting portion 214 are sequentially disposed in the Y-axis direction. When the first link 210 rotates about the first rotation axis 101 formed by the first pivot portion 212 as the rotation axis, the actuating portion 216 and the first connecting portion 214 can move in opposite directions relative to the base 10. For example, relative to the first pivot portion 214, when a pressing force is applied to the side of the first link 210 on which the actuating portion 216 is disposed, the actuating portion 216 moves downward to approach the base 10, and the first connecting portion 214 moves upward to move away from the base 10. In addition, the first link 210 can optionally further include a positioning portion 218 for defining the position of the pressing force. In this embodiment, the positioning portion 218 can be a protruding rib or a protruding point protruding from the surface of the first link 210, and the positioning portion 218 has a predetermined distance from the first pivot portion 212 to define the position of the operating member 50 (shown in Figure 2A ) that applies the pressing force, but the disclosure is not limited thereto. In other embodiments (not shown), the positioning portion 218 can be a clamping slot formed in the first link 210, so that the operating member 50 can be positioned in the clamping slot.

[0049] Corresponding to the shape of the first connecting portion 214 of the first link 210, the second link 220 can include second connecting segments 224a and hole portions 224b. For example, two second connecting segments 224a are disposed at opposite ends of the second pivot portion 222 in the X-axis direction (i.e., the two second connecting segments 224a are spaced apart along the second rotation axis 102), and the two second connecting segments 224a extend from the second pivot portion 222 a predetermined distance in the Y-axis direction. The hole portions 224b are disposed at the ends of each second connecting segment 224a and away from the second pivot portion 222, and the two hole portions 224 are preferably aligned with each other in the X-axis direction. By sleeving the shaft portion 214b through the hole portions 224b, the two second connecting segments 224a are respectively coupled to the corresponding first connecting segments 214a, so that the first connecting portion 214 is movably coupled to the second connecting portion 224. In this embodiment, the second connecting segments 224a are preferably curved segments, so that when the first link 210 drives the second link 220 to move, the second connecting segments 224a can elastically deform. Furthermore, the second link 220 can optionally have a limiting portion 226, and the limiting portion 226 can be a column or block protruding from the second pivot portion 222. For example, the limiting portion 226 can be located between the two second connecting segments 224a and protrude from the second pivot portion 222 to correspond to the positioning space 124 of the seat body 10.

[0050] Furthermore, the key structure 1 can further include a reset member 30 and a switch unit 40, wherein the reset member 30 is used to provide a restoring force to make the link mechanism 20 return to the position before being pressed, and the switch unit 40 can generate a trigger signal when triggered. Specifically, the reset member 30 is disposed on the seat body 10, and when the pressing force is released, the reset member 30 provides a restoring force so that the plurality of links (e.g., the first link 210 and the second link 220) move relative to each other to return to the position before being pressed (i.e., the unpressed position). In one embodiment, the reset member 30 can be implemented as a resilient member having a positioning portion 312 and an acting portion 314. The positioning portion 312 is positioned on the seat body 10, and the acting portion 314 extends corresponding to one of the plurality of links (e.g., the first link 210). For example, the reset member 30 can be implemented as a torsion spring, and one end of the torsion spring serves as the positioning portion 312, and the other end of the torsion spring serves as the acting portion 314. In other words, the positioning portion 312 and the acting portion 314 are rod bodies extending from opposite ends of a torsion spring body 316. The acting portion 314 preferably extends away from the first connecting portion 214, so that the acting portion 314 can abut against one side of the first link 210 provided with the acting portion 216, for example, against the bottom surface 213 of the first link 210, and the acting portion 216 extends downward from the bottom surface 213. When a pressing force is applied to the first link 210, the first link 210 (e.g., the bottom surface 213) presses against the acting portion 314 to drive the acting portion 314 to move relative to the positioning portion 312.

[0051] In one embodiment, the switch unit 40 can be implemented as an optical switch, and the switch unit 40 is arranged corresponding to the link mechanism 20 (e.g. the first link 210). When a pressing force is applied to the link mechanism 20 (e.g. the first link 210), the first link 210 moves relative to the base 10 to trigger the switch unit 40. Specifically, the switch unit 40 includes a light emitter 410 and a light receiver 420, and the light emitter 410 and the light receiver 420 are electrically connected to a circuit board (not shown) to generate a trigger signal by changing the amount of light received by the light receiver 420 from the light emitter 410 when the first link 210 moves relative to the base 10. Corresponding to the optical switch type of the switch unit 40, the base 10 preferably has a light passage 150, so that the light emitter 410 and the light receiver 420 can be arranged on opposite sides of the light passage 150. The extension direction of the light passage 150 (e.g. the X-axis direction) is preferably intersected with the connection direction of the first pivot portion 212 and the first connecting portion 214 (e.g. the Y-axis direction), so that the actuating portion 216 can selectively shield the light passage 150 when the first link 210 is actuated to change the amount of light received by the light receiver 420 from the light emitter 410, thereby triggering the switch unit 40. It should be noted that the key structure 1 is described by taking the optical switch type of the switch unit 40 as an example, but is not limited thereto. In other embodiments, the key structure 1 can use other forms of switch components to selectively generate a trigger signal in response to the movement of the first link 210 (e.g. the actuating portion 216). For example, according to actual needs, the switch unit can include an electrode module or a thin film switch layer or a micro switch or a magnetic switch (Hall effect switch) or the like to trigger in response to the movement of the first link 210 (e.g. the actuating portion 216). In addition, in this embodiment, the actuating portion 216 of the first link 210 is taken as an example to trigger the switch unit 40, but is not limited thereto. In other embodiments, according to actual applications, the switch unit 40 can be triggered by other components of the key structure 1, such as any suitable component (e.g. the actuating portion 216 of the first link 210 shown in the embodiment of Figure 14 .

[0052] As Figures 1A-1C and Figure 2AAs shown, when the key structure 1 is assembled, the positioning portion 312 of the reset member 30 is inserted into the positioning hole 144 of the seat body 10, the torsion spring body 316 is disposed in the accommodation space 142 between the two shaft holes 112 of the first coupling portion 110 of the seat body 10 to be located below the first pivot portion 212 of the first link 210, and the acting portion 314 extends towards the direction away from the first connecting portion 214 to abut against the bottom surface 213 of the first link 210. The first connecting portion 214 of the first link 210 and the second connecting portion 224 of the second link 220 are mutually sleeved (the shaft portion 214b and the hole portion 224b are sleeved), and the first pivot portion 212 of the first link 210 and the shaft hole 112 of the first coupling portion 110 of the seat body 10 are rotatably engaged to form the first rotation shaft 101, so that the acting portion 216 of the first link 210 is disposed corresponding to the opening 130 of the seat body 10. The second pivot portion 222 of the second link 220 and the shaft hole 122 of the second coupling portion 120 of the seat body 10 are rotatably engaged to form the second rotation shaft 102, and the limiting portion 226 of the second link 220 is located in the positioning space 124 between the two shaft holes 122 of the second coupling portion 120 to limit the lateral (for example, the X-axis direction) displacement of the second link 220.

[0053] In the following reference Figures 2A-2C The operation of the key structure 1 is described, wherein Figures 2A-2C The key structure 1 in the unpressed state, the transition state and the pressed end point state is respectively shown. As shown in Figure 2A As shown, when no pressing force is applied to the link mechanism 20 (for example, the first link 210), the link mechanism 20 is in the unpressed state by the pre-force provided by the reset member 30. When the key structure 1 is in the unpressed state, the coupling shaft 201 formed by the coupling of the first connecting portion 214 and the second connecting portion 224 of the first link 210 and the second link 220 is located at the unpressed position L1. The operating member 50 can abut against the positioning portion 218 of the first link 210, and the acting portion 216 of the first link 210 does not shield the light channel 150, so that the light signal received by the light receiver 420 from the light emitter 410 is strong (for example, more light is received).

[0054] As shown in Figure 2BAs shown, when the operating member 50 applies pressure to the first link 210 of the linkage mechanism 20, the first link 210 rotates about the first pivot 101 in a first direction (e.g., counterclockwise) and drives the coupling shaft 201 to move relative to the seat 10, causing the second link 220 to rotate about the second pivot 102 in a second direction (e.g., clockwise). Specifically, when the first link 210 rotates about the first pivot 101 and the actuating part 216 rotates in a counterclockwise direction close to the seat 10, the first link 210 presses against the actuating part 314 of the reset member 30 by the bottom surface 213, causing the actuating part 314 to move relative to the positioning part 312 and deform relative to the positioning part 312. The actuating unit 216 rotates with the first link 210 and moves to a position that can block the light channel 150, so that the light receiver 420 receives a weak light signal (e.g., less light) or no light signal from the light emitter 410, thereby triggering the switching unit 40 to generate a trigger signal. At this time, the first connecting part 214 of the first link 210 rotates counterclockwise away from the base 10 (i.e., the coupling shaft 201 moves upward to the transition position L2), and drives the second connecting part 224 of the second link 220 to move upward, so that the second link 220 rotates clockwise around the second rotating shaft 102. In other words, when pressure is applied to the first link 210, the first link 210 drives the second link 220 to move, causing the first link 210 and the second link 220 to rotate in opposite directions relative to the seat 10. For example, the first link 210 rotates counterclockwise to move the actuator 216 toward the seat 10, while driving the second link 220 to rotate clockwise to move the second connecting part 224 away from the seat 10.

[0055] like Figure 2C As shown, when the first link 210 drives the second link 220 to rotate in the opposite direction relative to the base 10 until the coupling shaft 201 can no longer move upward relative to the base 10, the coupling shaft 201 reaches the pressing stop position L3. Specifically, the button structure 1, through the linkage mechanism of the first link 210 and the second link 220, can mutually restrain each other and limit the rotation range of the first link 210 and the second link 220 relative to the base 10, thereby achieving a non-collision pressing stop. That is, the button structure 1 can achieve the limiting effect without stopping due to mutual collision between components, effectively reducing the generation of abnormal noise. It should be noted that the pressing stop position L3 of the coupling shaft 201 can vary according to the tilt angle of the first connecting part 214 relative to the first pivot part 212, the length of the first connecting segment 214a, the length of the second connecting segment 224a, etc. That is, the pressing stop position L3 of the coupling shaft 201 can depend on the relative positions between the first rotating shaft 101, the coupling shaft 201 and the second rotating shaft 102.

[0056] When the pressing force is released, the restoring member 30 provides a restoring force, so that the acting portion 314 pushes against the bottom surface 213 of the first link 210 to drive the first link 210 to rotate clockwise, and then drives the second link 220 to rotate counterclockwise via the first connecting portion 214, so that the key structure 1 is restored from the pressing end position L3 to the transition state L2, and then to the pre-pressing position (i.e. the non-pressing position) L1. Figure 2C Figure 2B Figure 2A

[0057] Furthermore, please refer to Figure 3 , Figure 3 show Figure 1C the deformation schematic diagram of the coupling shaft 201 of the key structure 1 in the non-pressing position L1, the transition position L2, and the pressing end position L3. As shown in the partial enlarged view of Figure 3 , when the pressing force is applied to the first link 210, since the first link 210 and the second link 220 do not substantially relatively displace in the Y-axis direction (i.e. the positions of the first pivot portion 212 and the second pivot portion 222 are substantially fixed, or the positions of the first rotating shaft 101 and the second rotating shaft 102 are substantially fixed), but are pressed against each other, the second connecting segment 224a can be elastically deformed, so that the user feels the pressing deformation of the link mechanism 20 from the non-pressing position L1 to the pressing end position L3, and further improves the pressing feeling of the key structure 1. In other words, the key structure 1 not only can use the limiting mechanism of the link mechanism 20 to reduce the abnormal sound generated by the collision of the key components, but also can generate the paragraph feeling by the pressing deformation of the link mechanism 20, so that the user has a quiet and clear operation experience. It should be noted that in this embodiment, the second connecting segment 224a of the second link 220 is taken as an example to illustrate the elastically deformable, but it is not limited thereto. In other embodiments, the design of the first link and the second link can be changed according to the actual application, so that when the first link 210 drives the second link 220 to move, at least one of the first connecting segment 214a and the second connecting segment 224a can be elastically deformed to provide the pressing deformation to generate the paragraph feeling.

[0058] Figures 4A-4C are respectively the exploded view, the partial exploded view, and the combined view of the key structure 1A of the second embodiment of the present application. The key structure 1A comprises a seat body 10 and a link mechanism 20A, and the link mechanism 20A comprises a first link 210A and a second link 220A. In this embodiment, the seat body 10 has a similar structure to Figure 1A , and the link mechanism 20A can have a similar structure to Figure 1A ​​​The linkage mechanism 20 has a similar linkage limiting mechanism. For example, the mechanism by which the first link 210A and the second link 220A of the linkage mechanism 20A are rotatably coupled to the base 10, the structure and function of the reset member 30 and the switch unit 40 can be referred to the relevant description in the first embodiment, and will not be repeated here. Furthermore, the first link 210A of the linkage mechanism 20A has a first pivot portion 212, an actuating portion 216, a positioning portion 218 and a bottom surface 213 similar to those in the first embodiment, while the second link 220A has a second pivot portion 222 similar to those in the first embodiment. The differences between the linkage mechanism 20A and the linkage mechanism 20 will be emphasized hereafter.

[0059] like Figures 4A-4C As shown, the first connecting portion 214A of the first connecting rod 210A and the second connecting portion 224A of the second connecting rod 220A are connected to each other by a shaft portion and a hole portion to form a coupling shaft 201. Specifically, the first connecting portion 214A extends downward at an angle from the middle section of the first pivot portion 212 to form a shaft portion extending in the X-axis direction at its end, while the second connecting portion 224A extends from the middle section of the second pivot portion 222 toward the first connecting rod 210A to form a corresponding hole portion at its end.

[0060] In this embodiment, the second link 220A further includes a tactile actuation part 225. The tactile actuation part 225 is connected to the second pivot part 222 and movably coupled to the first pivot part 212. When the first link 210A drives the second link 220A to move, the tactile actuation part 225 moves relative to the first pivot part 212, causing the tactile actuation part 225 to interfere with the first pivot part 212. Specifically, the tactile actuation part 225 has a protrusion 228, and the protrusion 228 is disposed corresponding to the first pivot part 212. When the tactile actuation part 225 moves relative to the first pivot part 212, the protrusion 228 interferes with the first pivot part 212. For example, the end of the tactile actuation part 225 is connected to the second pivot part 222 and extends toward the first pivot part 212. In this embodiment, the tactile actuation part 225 can be implemented as a fan-shaped or angular tactile actuation part 225, with the apex of the fan-shaped or angular part connecting to the second pivot part 222, such that the arc edge of the fan-shaped part or the bottom edge of the angular part corresponds to the first pivot part 212 and forms a groove 227. The protrusion 228 is disposed on one side of the groove 227 corresponding to the first pivot part 212, and is preferably located in the middle of the groove 227 and protrudes towards the groove 227. When the tactile actuation part 225 moves relative to the first pivot part 212, the first pivot part 212 preferably moves from one end of the groove 227 to the other end of the groove 227 and interferes with the protrusion 228 during the movement.

[0061] like Figures 4A-4C and Figure 5AAs shown, when the key structure 1A is assembled, the positioning portion 312 of the reset member 30 is inserted into the positioning hole 144 of the seat body 10, the torsion spring body 316 is disposed in the accommodation space 142 between the two shaft holes 112 of the first coupling portion 110 of the seat body 10 so that the torsion spring body 316 is located below the first pivot portion 212, and the acting portion 314 extends towards the direction away from the first connecting portion 214A to abut against the bottom surface 213 of the first link rod 210A. The first connecting portion 214A of the first link rod 210A and the second connecting portion 224A of the second link rod 220A are mutually sleeved (the shaft portion and the hole portion are sleeved), and the first pivot portion 212 of the first link rod 210A is rotatably clamped with the shaft hole 112 of the first coupling portion 110 of the seat body 10 to form the first rotation shaft 101, so that the acting portion 216 of the first link rod 210A is disposed corresponding to the opening 130 of the seat body 10. The second pivot portion 222 of the second link rod 220A is rotatably clamped with the shaft hole 122 of the second coupling portion 120 of the seat body 10 to form the second rotation shaft 102, and the second connecting portion 224A of the second link rod 220A is located between the two shaft holes 122 of the second coupling portion 120 (for example, in the aforementioned positioning space 124 of the embodiment), so as to limit the lateral (for example, the X-axis direction) displacement of the second link rod 220A. The hand feeling acting portion 225 is coupled with the first pivot portion 212, for example, one end of the first pivot portion 212 is inserted into the sliding groove 227, so that one end of the first pivot portion 212 is located at the upper end of the sliding groove 227, and the hand feeling acting portion 225 is located outside the shaft hole 112 of the first coupling portion 110.

[0062] Reference is made to the following drawings Figures 5A-5C The operation of the key structure 1A is described, wherein Figures 5A-5C The key structure 1A is shown in the unpressed state, the transition state and the pressed end point state, respectively. As shown in the unpressed state of the key structure 1A, Figure 5A As shown, when no pressing force is applied to the link mechanism 20A, the link mechanism 20A is in the unpressed state by the pre-tightening force provided by the reset member 30. When the key structure 1A is in the unpressed state, the coupling shaft 201 formed by the coupling of the first connecting portion 214A and the second connecting portion 224A of the first link rod 210A and the second link rod 220A is located at the unpressed position L1, and one end of the first pivot portion 212 is located at the upper end of the sliding groove 227 of the hand feeling acting portion 225. The operating member 50 can abut against the positioning portion 218 of the first link rod 210A, and the acting portion 216 of the first link rod 210A does not shield the light channel 150, so that the light signal received by the light receiver 420 from the light emitter 410 is strong (for example, a larger amount of light is received).

[0063] As shown in the transition state of the key structure 1A, Figure 5BAs shown, when a pressing force is applied to the linkage mechanism 20A (e.g. the first linkage 210A) by the operation member 50, the positions of the first pivot 101 and the second pivot 102 relative to the base 10 remain substantially unchanged, and the first linkage 210A and the second linkage 220A are connected to each other to limit the range of rotation of the first linkage 210A and the second linkage 220A relative to the base 10. For example, the first linkage 210A rotates in a clockwise direction (i.e. a first direction) about the first pivot 101 and moves the coupling shaft 201 away from the base 10, such that the second linkage 220A rotates in a counterclockwise direction (i.e. a second direction) about the second pivot 102, and the hand- feeling actuating portion 225 moves upward relative to the first pivot portion 212. Specifically, when the first linkage 210A rotates the actuating portion 216 in a clockwise direction about the first pivot 101 toward the base 10, the first linkage 210A presses the acting portion 314 of the restoring member 30 by the bottom surface 213, such that the acting portion 314 moves downward relative to the positioning portion 312 to deform the acting portion 314 relative to the positioning portion 312. The actuating portion 216 rotates with the first linkage 210A and moves to a position that can block the light passage 150, such that the light receiver 420 receives a weak light signal (e.g. a small amount of light) or no light signal from the light emitter 410 to trigger the switch unit 40 to generate a trigger signal. At this time, the first connecting portion 214A of the first linkage 210A rotates in a clockwise direction away from the base 10 (i.e. the coupling shaft 201 moves upward to the transition position L2), and drives the second connecting portion 224A of the second linkage 220A and the hand- feeling actuating portion 225 to move upward, such that the second linkage 220A rotates in a counterclockwise direction about the second pivot 102. In other words, when a pressing force is applied to the first linkage 210A, the first linkage 210A drives the second linkage 220A to rotate relative to the base 10, for example, the first linkage 210A rotates in a clockwise direction to drive the actuating portion 216 to rotate toward the base 10, and drives the second linkage 220A to rotate in a counterclockwise direction to drive the second connecting portion 224A and the hand- feeling actuating portion 225 to rotate away from the base 10. When the hand- feeling actuating portion 225 moves upward such that the protruding portion 228 passes through the first pivot portion 212, the protruding portion 228 interferes with the first pivot portion 212, and the protruding portion 228 is elastically deformed by the pushing of the first pivot portion 212 to pass through the first pivot portion 212. In other words, when the first pivot portion 212 moves from the upper end of the sliding groove 227 to the lower end of the sliding groove 227 relative to the hand- feeling actuating portion 225 to pass through the protruding portion 228, the first pivot portion 212 presses the protruding portion 228 to deform the protruding portion 228 away from the sliding groove 227 to continue to move to the lower end of the sliding groove 227.

[0064] As Figure 5CAs shown, when the first link 210A drives the second link 220A to rotate relative to the base 10 to the position where the coupling shaft 201 can no longer move upward relative to the base 10, i.e., the first link 210A and the second link 220A are connected to each other to limit the range of rotation of the first link 210A and the second link 220A relative to the base 10, the coupling shaft 201 reaches the pressing stop position L3. Specifically, the key structure 1A can be mutually restrained by the linkage mechanism of the first link 210A and the second link 220A to reach the pressing stop position, i.e., without the mutual collision between elements to stop, the limiting effect can be achieved, effectively reducing the generation of abnormal sound. It should be noted that the pressing stop position L3 of the coupling shaft 201 can be changed according to the inclination angle of the first connecting portion 214A relative to the first pivot portion 212, the length of the first connecting portion 214A, the length of the second connecting portion 224A, and the length of the sliding groove 227. That is, the pressing stop position L3 of the coupling shaft 201 can depend on the relative position between the first rotating shaft 101, the coupling shaft 201, and the second rotating shaft 102, as well as the top angle of the fan-shaped or angular feeler 225 (or the length of the sliding groove 227).

[0065] When the pressing force is released, the restoring member 30 provides a restoring force, so that the acting portion 314 pushes against the bottom surface 213 of the first link 210A to drive the first link 210A to rotate counterclockwise, and then the first connecting portion 214A drives the second link 220 to rotate clockwise, so that the key structure 1A experiences the transition state from the pressing stop position L3 to the unpressing position L1. Figure 5C Figure 5B Figure 5A

[0066] In the second embodiment, during the movement of the key structure 1A using the linkage mechanism 20A, the first pivot portion 212 of the first link 210A moves relative to the feeler 225 in the sliding groove 227 to press the protruding portion 228, and the paragraph feeling is generated by the elastic deformation of the protruding portion 228, so that the key structure 1A provides a quiet and paragraph feeling pressing feel. It should be noted that in this embodiment, the feeler 225 is coupled to the first pivot shaft 212 in the form of a fan-shaped or angular coupling rod, but it is not limited thereto. In other embodiments, the shape of the feeler 225 can be changed according to actual application.

[0067] Figure 6A and 6B ​​​These are exploded and assembled views of the button structure 1B according to the third embodiment of the present invention. The button structure 1B includes a base 10 and a linkage mechanism 20B, and the linkage mechanism 20B includes a first link 210B and a second link 220B. In this embodiment, the base 10 has a structure similar to that of the first embodiment, and the linkage mechanism 20B may have a linkage limiting mechanism similar to that of the linkage mechanism 20 or 20A in the aforementioned embodiments. For example, the mechanism by which the first link 210B and the second link 220B of the linkage mechanism 20B are rotatably coupled to the base 10, the structure and function of the reset member 30 and the switch unit 40 can be referred to the relevant description of the first embodiment, and will not be repeated here. Furthermore, the first link 210B of the linkage mechanism 20B has an actuating part 216, a positioning part 218 and a bottom surface 213 similar to those in the first embodiment, and the first link 210B of the linkage mechanism 20B has a first connecting part 214B similar to that in the second embodiment. The second link 220A has a second pivot portion 222 and a second connecting portion 224B similar to those in the second embodiment. The differences between the link mechanism 20B and the link mechanisms 20 or 20A of the aforementioned embodiments will be described in detail below.

[0068] like Figure 6A and 6B As shown, the first pivot portion 212B of the first connecting rod 210B can be implemented as two shaft portions extending along the X-axis and spaced apart. In this embodiment, the two shaft portions of the first pivot portion 212B preferably extend in the same direction, such that one shaft portion is coupled to one of the holes 112 of the first coupling portion 110 from the outside to the inside, while the other shaft portion is coupled to the other hole 112 of the first coupling portion 110 from the inside to the outside, but this is not a limitation. The first connecting portion 214B extends downwardly at one end of one of the shaft portions of the first pivot portion 212, and the first connecting portion 214B is preferably located between the two shaft portions to couple to the second connecting portion 224B of the second connecting rod 220B. In other words, the first connecting portion 214B and the second connecting portion 224B are connected to each other by a shaft portion and a hole portion to form a coupling shaft 201.

[0069] For reference later Figure 7A and Figure 7B Explain the operation of button structure 1B, where Figure 7A and Figure 7B This displays the button structure 1B in the unpressed state and the pressed-off state, respectively. For example... Figure 7AAs shown, when no pressing force is applied to the linkage mechanism 20B (e.g. the first linkage 210B), the pre-tension provided by the restoring member 30 causes the key structure 1B to be in the un-pressed position. When the key structure 1B is in the un-pressed state, the coupling shaft 201 formed by the coupling of the first linkage 210B and the second linkage 220B via the first connecting portion 214B and the second connecting portion 224B is located at the un-pressed position L1. The operating member 50 abuts against the positioning portion 218 of the first linkage 210B, and the actuating portion 216 of the first linkage 210B does not block the light passage 150, so that the light receiver 420 receives a stronger light signal (e.g. receives more light) from the light emitter 410.

[0070] As shown, when no pressing force is applied to the linkage mechanism 20B (e.g. the first linkage 210B), the pre-tension provided by the restoring member 30 causes the key structure 1B to be in the un-pressed position. When the key structure 1B is in the un-pressed state, the coupling shaft 201 formed by the coupling of the first linkage 210B and the second linkage 220B via the first connecting portion 214B and the second connecting portion 224B is located at the un-pressed position L1. The operating member 50 abuts against the positioning portion 218 of the first linkage 210B, and the actuating portion 216 of the first linkage 210B does not block the light passage 150, so that the light receiver 420 receives a stronger light signal (e.g. receives more light) from the light emitter 410. Figure 7B As shown, when a pressing force is applied to the first linkage 210B of the linkage mechanism 20B via the operating member 50, the first linkage 210B rotates about the first pivot axis 101 in the first direction (e.g. counterclockwise) and causes the coupling shaft 201 to move relative to the base 10, so that the second linkage 220B rotates about the second pivot axis 102 in the second direction (e.g. clockwise), and the first linkage 210B and the second linkage 220B restrict the range of rotation of the first linkage 210B and the second linkage 220B relative to the base 10 via the linkage mechanism therebetween, so that the coupling shaft 201 moves to the pressed end position L3. Specifically, when the first linkage 210B rotates the actuating portion 216 about the first pivot axis 101 in the counterclockwise direction towards the base 10, the first linkage 210B presses against the acting portion 314 of the restoring member 30 via the bottom surface 213, so that the acting portion 314 moves downward relative to the positioning portion 312 and deforms relative to the positioning portion 312. The actuating portion 216 rotates and moves to a position that can block the light passage 150 as the first linkage 210B rotates, so that the light receiver 420 receives a weaker light signal (e.g. less light) or no light signal from the light emitter 410, to trigger the switch unit 40 to generate a trigger signal. At this time, the first connecting portion 214B of the first linkage 210B rotates in the counterclockwise direction away from the base 10 (i.e. the coupling shaft 201 moves upward to the pressed end position L3), and causes the second connecting portion 224B of the second linkage 220B to move upward, so that the second linkage 220B rotates about the second pivot axis 102 in the clockwise direction. In other words, when a pressing force is applied to the first linkage 210B, the first linkage 210B causes the second linkage 220B to move, so that the first linkage 210B and the second linkage 220B rotate in opposite directions relative to the base 10, e.g. the first linkage 210B rotates in the counterclockwise direction to cause the actuating portion 216 to move towards the base 10, and causes the second linkage 220B to rotate in the clockwise direction to cause the second connecting portion 224B to move away from the base 10.

[0071] When the pressure is released, the reset member 30 provides a restoring force, causing the actuating part 314 to push against the bottom surface 213 of the first connecting rod 210B, thereby causing the first connecting rod 210B to rotate clockwise. This, in turn, causes the second connecting rod 220B to rotate counterclockwise via the first connecting part 214B, thus causing the button structure 1B to... Figure 7B The press stop position is restored to Figure 7A The unpressed position. Specifically, the button structure 1B can reach the pressing stop point by mutual restraint through the linkage mechanism of the first link 210B and the second link 220B. That is, the limiting effect can be achieved without the need for the components to collide and stop, effectively reducing the generation of abnormal noise.

[0072] Figure 8A and 8B The images shown are exploded views and combined views of the button structure 1B' according to the fourth embodiment of the present invention. Figure 8A The button structure 1B' is Figure 6A This is a variation of the button structure 1B. Therefore, the details and functions of each component of the button structure 1B' can be found in the relevant descriptions of the foregoing embodiments, and will not be repeated here. Figure 8A and Figure 8B As shown, the button structure 1B' may include a magnetic unit 60 as a reset element, without the need for a magnetic unit 60. Figure 6A The torsion spring type reset member 30. The magnetic unit 60 includes a first magnetic element 610 and a second magnetic element 620. The first magnetic element 610 and the second magnetic element 620 may be implemented as both being magnets or a combination of magnets and ferromagnetic materials. The first magnetic element 610 is disposed on the linkage mechanism 20B, and the second magnetic element 620 is disposed corresponding to the first magnetic element 610 to generate magnetic attraction. Specifically, the first magnetic element 610 may be disposed at any suitable position on the first link 210B (or movable element) of the linkage mechanism 20B, and the first magnetic element 610 is preferably located on the same side as the actuating part 216 relative to the first pivot 212B. Corresponding to the placement of the first magnetic element 610, the first link 210B has a receiving portion 215 for receiving the first magnetic element 610. In this embodiment, the receiving portion 215 may be a groove formed in the first link 210B, such that the first magnetic element 610 is at least partially received in the groove, but is not limited thereto. In other embodiments, the receiving portion 215 may be the surface space of the first connecting rod 210B, allowing the first magnetic element 610 to connect to the first connecting rod 210B by means of snapping or bonding. Thus, when the first connecting rod 210B moves relative to the base 10, the first magnetic element 610 can move along with the first connecting rod 210B. The second magnetic element 620 is preferably disposed corresponding to the first magnetic element 610, so that a magnetic attraction force can be generated between the first magnetic element 610 and the second magnetic element 620, thereby supporting the button structure 1B' in the unpressed position. For example, the second magnetic element 620 may be disposed on, for example, other components of the base 10 or the button structure 1B' (e.g.,Figure 18A (The cover 70, but not limited to this).

[0073] For reference later Figures 9A-9C Explain the operation of button structure 1B', where Figures 9A-9C This displays the button structure 1B' in the unpressed state, the transition state, and the pressed-off state, respectively. For example... Figure 9A As shown, when no pressing force is applied to the linkage mechanism 20B (e.g., the first linkage 210B), the linkage mechanism 20B, through the pre-force provided by the reset member (e.g., the magnetic attraction between the first magnetic member 610 and the second magnetic member 620), keeps the button structure 1B' in an unpressed state. That is, when the button structure 1B' is in the unpressed state, the coupling shaft 201 formed by the coupling of the first linkage 210B and the second linkage 220B through the first connecting part 214B and the second connecting part 224B is located in the unpressed position L1. The operating member 50 reliably abuts against the positioning part 218 of the first linkage 210B, and the actuating part 216 of the first linkage 210B does not block the light channel 150, so that the light receiver 410 receives a stronger light signal from the light emitter 420 (e.g., receives more light).

[0074] like Figure 9B and Figure 9C As shown, when a pressing force is applied to the first link 210B of the linkage mechanism 20B, the first link 210B causes the first magnetic element 610 to move away from the second magnetic element 620. Specifically, when a pressing force is applied to the first link 210B by the operating member 50, the first link 210B rotates the actuating part 216 in a counterclockwise direction (i.e., the first direction) towards the seat 10 with the first rotating shaft 101 as the center, and the first magnetic element 610 also moves away from the second magnetic element 620 as the first link 210B moves downward. At the same time, the first connecting part 214B of the first link 210B rotates counterclockwise away from the seat 10 (i.e., the coupling shaft 201 moves upward through the transition position L2 and then to the pressing stop position L3), and causes the second connecting part 224B of the second link 220B to move upward, so that the second link 220B rotates clockwise (i.e., the second direction) with the second rotating shaft 102 as the center. Furthermore, the actuator 216 rotates and moves with the first link 210B to a position that can block the light channel 150, so that the light receiver 420 receives a weaker light signal (e.g., less light) or no light signal from the light emitter 410, thereby triggering the switch unit 40 to generate a trigger signal.

[0075] When the pressing force is released, the magnetic attraction between the first magnetic member 610 and the second magnetic member 620 causes the first link 210B to move the first magnetic member 610 closer to the second magnetic member 620 (or the first magnetic member 610 to move the first link 210B closer to the second magnetic member 620) to return to the pre-pressing position (i.e. the un-pressed position). Specifically, when the pressing force is released, the magnetic attraction between the first magnetic member 610 and the second magnetic member 620 causes the first magnetic member 610 to move in the direction of the second magnetic member 620 (i.e. upwardly), and causes the first link 210B to rotate clockwise, and in turn causes the second link 220B to rotate counterclockwise via the first connecting portion 214B, so that the key structure 1B' experiences a transition position from the pressing end position to the un-pressed position. Figure 9C Figure 9B Figure 9A

[0076] The key structure 1B' can limit the range of rotation of the first link 210B and the second link 220B relative to the base 10 via the linkage mechanism of the first link 210B and the second link 220B, so as to reach the pressing end position, i.e. without the need to stop via mutual collision between elements to achieve the limiting effect, effectively reducing the generation of abnormal sound. Furthermore, the key structure 1B' can generate a paragraph feeling via the magnetic attraction between the first magnetic member 610 and the second magnetic member 620. In other words, the key structure 1B' can not only use the magnetic unit 60 to replace the torsion spring of the key structure 1 as a return member to cause the first link 210B to cause the second link 220B to return to the pre-pressing position via magnetic attraction (i.e. return force), but also can provide a paragraph feeling via the magnetic attraction provided by the magnetic unit 60, but not limited thereto. In other embodiments (e.g. the embodiment of the key structure 1B), the key structure can include a torsion spring as a return member 30, and include a magnetic unit 60 as a component for providing a paragraph feeling, so that the key structure can provide a non-collision type of silent effect and a non-contact type (e.g. magnetic attraction type) of paragraph feeling. Figure 6A Figure 10A

[0077] Figures 10A-10D are respectively an exploded view, an assembled view, a bottom view and a cross-sectional view of the key structure 1B" of the fifth embodiment of the present application. Figure 10A Figure 6A Figure 8A The key structure 1B" of the present embodiment is a variation of the key structure 1B, 1B' of the first embodiment and the second embodiment, and the details and functions of the elements of the key structure 1B" can be referred to the relevant descriptions of the foregoing embodiments, which will not be described herein. In the present embodiment, the key structure 1B" not only includes a torsion spring type return member 30 similar to the key structure 1B of the first embodiment, but further includes a magnetic unit 60 similar to the key structure 1B' of the second embodiment. Furthermore, the key structure 1B" can provide a paragraph feeling via the magnetic unit 60, and can provide a non-collision type of silent effect. Figure 6A Figure 8A Figure 10C and​​​​​​​​​Figure 10D As shown, the first link 210B of the linkage mechanism 20B preferably has a positioning slot 217 for positioning the acting portion 314 of the corresponding return member 30. In this embodiment, the positioning slot 217 can be disposed on the bottom of the first link 210B adjacent to the acting portion 216, such that the bottom of the positioning slot 217 can serve as the bottom surface 213 of the first link 210B against which the acting portion 314 abuts in the aforementioned embodiment. When the return member 30 is disposed in the seat body 10, the torsion spring body 316 is located in the accommodating space, and the positioning portion 312 is inserted into the positioning hole 144 of the seat body 10, such that the acting portion 314 is at least partially inserted into the positioning slot 217 and abuts against the bottom surface 213, thereby enhancing the positioning of the acting portion 314 of the return member 30 and the first link 210B in linkage, but not limited thereto. In addition, in this embodiment, the seat body 10 can further include a positioning mechanism 115 to facilitate the positioning of the key structure 1B” and other components (such as a circuit board or a support component). For example, the positioning mechanism 115 can be implemented as a protruding post from the bottom of the seat body 10, but not limited thereto. In other embodiments, the positioning mechanism 115 can be implemented as a hole or a groove formed on the bottom of the seat body 10.

[0078] In this embodiment, the operation of the key structure 1B” is similar to Figure 7A and 7B or Figures 9A-9C . As Figure 10DAs shown, when no pressing force is applied to the linkage mechanism 20B (e.g. the first linkage 210B), the pre-tension provided by the restoring member 30 and the magnetic attraction between the first magnetic member 610 and the second magnetic member 620 cause the key structure 1B" to be in the un-pressed state. When the key structure 1B" is in the un-pressed state, the actuating portion 216 of the first linkage 210B does not block the light passage 150, so that the light receiver 420 receives a strong light signal (e.g. receives a large amount of light) from the light emitter 410. When a pressing force is applied to the first linkage 210B of the linkage mechanism 20B, the first linkage 210B rotates in the first direction (e.g. counterclockwise direction) about the first rotation axis 101, the first linkage 210B moves the first magnetic member 610 away from the second magnetic member 620, and the first linkage 210B presses the bottom surface 213 against the acting portion 314 of the restoring member 30, so that the acting portion 314 elastically deforms relative to the positioning portion 312. At the same time, the first connecting portion 214B of the first linkage 210B rotates in the counterclockwise direction away from the seat body 10 (i.e. the coupling shaft 201 moves upward to the pressing stop position), and the second connecting portion 224B of the second linkage 220B moves upward, so that the second linkage 220B rotates in the clockwise direction (i.e. the second direction) about the second rotation axis 102. The linkage mechanism 20B limits the range of rotation of the first linkage 210B and the second linkage 220B relative to the seat body 10 by the linkage mechanism, i.e. the coupling shaft 201 moves to the pressing stop position and cannot move further. Furthermore, the actuating portion 216 rotates with the first linkage 210B and moves to a position that can block the light passage 150, so that the light receiver 420 receives a weak light signal (e.g. a small amount of light) or no light signal from the light emitter 410, to trigger the switch unit 40 to generate a trigger signal.

[0079] When the pressing force is released, the restoring member 30 provides a restoring force and the magnetic attraction between the first magnetic member 610 and the second magnetic member 620, so that the acting portion 314 pushes against the bottom surface 213 of the first linkage 210B to cause the first linkage 210B to rotate in the clockwise direction, thereby causing the second linkage 220B to rotate in the counterclockwise direction by the first connecting portion 214B, and the first linkage 210B moves the first magnetic member 610 close to the second magnetic member 620 to cause the key structure 1B" to return to the un-pressed position. Specifically, the key structure 1B" not only has a pressing stop position by the linkage mechanism of the first linkage 210B and the second linkage 220B, but also has a paragraph feeling by the magnetic attraction provided by the magnetic unit 60, so that the key structure 1B" can stop without colliding with other elements, effectively reducing the generation of abnormal sound.

[0080] In the aforementioned embodiments, the operation of button structures 1, 1A, 1B, 1B', 1B'' is achieved by the operating member 50 applying pressure to the first connecting rods 210, 210A, 210B. The pressure applied by the operating member 50 is located on a different side from the first connecting portions 214, 214A, 214B relative to the first rotating shaft 101, causing the coupling shaft 201 to move away from the seat 10 after pressing, but this is not a limitation. Figures 11A-11B As shown, Figure 11A and 11B They are respectively Figure 8A A schematic diagram of an operational variation example of the button structure 1B', wherein the position where the pressing force is applied to the first link 210B is on the same side relative to the first rotating shaft 101 and the first connecting part 210B, so that after pressing, the coupling shaft 201 moves toward the seat 10. Specifically, as shown in the diagram... Figure 11A As shown, when no pressing force is applied to the first link 210B, the linkage mechanism uses the magnetic attraction between the first magnetic element 610 and the second magnetic element 620 to keep the button structure 1B' in an unpressed state. That is, the coupling shaft 201 is located in the unpressed position L1, and the actuating part 216 of the first link 210B at least partially blocks the light channel 150, so that the light receiver 410 receives a weak light signal (e.g., receives less light) or no light signal from the light emitter 420. Figure 11B As shown, when a pressing force is applied to the right side of the first link 210B (i.e., the same side relative to the first pivot 101 and the first connecting part 214B) by the operating member 50, the first link 210B rotates the actuating part 216 in a clockwise direction (i.e., the second direction) away from the seat 10 with the first pivot 101 as the center, and the first magnetic member 610 also moves away from the second magnetic member 620 as the first link 210B moves upward. At the same time, the first connecting part 214B of the first link 210B rotates clockwise and approaches the seat 10 (i.e., the coupling shaft 201 moves downward to the pressing stop position L3), and drives the second connecting part 224B of the second link 220B to move downward, so that the second link 220B rotates counterclockwise (i.e., the second direction) with the second pivot 102 as the center. Furthermore, the actuator 216 rotates and moves with the first link 210B to a position where the optical channel 150 can be opened, so that the optical signal received by the optical receiver 420 from the optical transmitter 410 is stronger (e.g., more light), thereby triggering the switching unit to generate a trigger signal.

[0081] Figure 12A and 12B These are exploded and assembled views of the button structure according to the sixth embodiment of the present invention. In this embodiment, by changing the design of the linkage mechanism, the position of the coupling shaft can be made not between the two rotating shafts. Figure 12A and Figure 12BAs shown, the key structure 1C comprises the linkage mechanism 20C and the seat body 10, wherein the key structure 1C differs from the key structure 1B’ in that the first link 210C of the linkage mechanism 20C has the first connecting portion 214C, such that the coupling position of the first link 210C and the second link 220B is changed, and the structures and functions of the remaining components of the key structure 1C can refer to the related descriptions of the foregoing embodiments, which will not be described here in detail. Specifically, the first connecting portion 214C of the first link 210C comprises a first connecting segment 214a’ extending from the first pivot portion 212, wherein the first connecting segment 214a’ preferably extends beyond the second coupling portion 120 of the seat body 10, and forms an axle portion 214b extending along the X-axis direction at the end portion. Thus, when the linkage mechanism 20C is arranged in the seat body 10, the first link 210C is coupled with the first coupling portion 110 of the seat body 10 through the first pivot portion 212 to form the first rotation shaft 101, the second link 220B is coupled with the second coupling portion 120 of the seat body 10 through the second pivot portion 222 to form the second rotation shaft 102, and the first connecting portion 214C of the first link 210C extends across the second rotation shaft 102 to be sleeved with the second connecting portion 224B of the second link 220B to form the coupling shaft 201, such that the coupling shaft 201 is located outside the first rotation shaft 101 and the second rotation shaft 102, i.e., the first rotation shaft 101, the second rotation shaft 102 and the coupling shaft 201 are sequentially arranged along the Y-axis direction. Corresponding to the design change of the first link 210C, the seat body 10 further has an activity space 190 to allow the linkage mechanism 20C (e.g., the second link 220B) to move therein. For example, the activity space 190 can be an opening formed in the seat body 10 corresponding to the coupling shaft 201, such that an open space communicating with the outside is formed between the two shaft holes 122 of the second coupling portion 120, but the disclosure is not limited thereto.

[0082] In the following reference Figure 13A and Figure 13B The operation of the key structure 1C is described. Figure 13A and 13B respectively show the key structure 1C in the unpressed state and the pressed end point state. As shown Figure 13A When no pressing force is applied to the linkage mechanism 20C (e.g., the first link 210C), the linkage mechanism 20C is in the unpressed state by the magnetic attraction force provided by the first magnetic member 610 and the second magnetic member 620. When the key structure 1C is in the unpressed state, the coupling shaft 201 formed by the coupling of the first link 210C and the second link 220B through the first connecting portion 214C and the second connecting portion 224B is located at the unpressed position L1, and the actuating portion 216 of the first link 210C does not shield the light channel 150, such that the light signal received by the light receiver 420 from the light emitter 410 is strong (e.g., more light is received).

[0083] AsFigure 13B As shown, when a pressing force is applied to the first link 210C by the operation member 50, the first link 210C rotates the actuating portion 216 in a counterclockwise direction (i.e., the first direction) about the first rotation axis 101 toward the seat body 10, and the first magnetic member 610 also moves downward away from the second magnetic member 620 as the first link 210C rotates. At the same time, the first connecting portion 214C of the first link 210C moves away from the seat body 10 (i.e., the coupling axis 201 moves upward to the pressing stop position L3) as it rotates in the counterclockwise direction, and the second connecting portion 224B of the second link 220B moves upward, causing the second link 220B to rotate in the counterclockwise direction (i.e., the second direction) in the active space 190 about the second rotation axis 102. That is, by changing the coupling design of the plurality of links, the first link 210C can cause the second link 220B to rotate in the same direction (i.e., the first direction and the second direction are the same). Furthermore, the actuating portion 216 rotates and moves to a position that can block the light passage 150 as the first link 210C rotates, causing the light receiver 420 to receive a weak (e.g., less light amount) or no light signal from the light emitter 410 to trigger the switch unit 40 to generate a trigger signal.

[0084] Furthermore, Figure 14 To Figure 12B is a schematic diagram of a variation of the key structure. In this embodiment, the key structure 1C’ differs from the key structure 1C in that the position of the switch unit 40 is different, such that the switch unit 40 can be triggered by the second link 220B. Specifically, in this embodiment, the light emitter 410 and the light receiver 420 of the switch unit 40 are arranged on one side of the seat body 10 corresponding to the second link 220B, for example, the position of the coupling axis 201, to trigger the switch unit 40 by the second link 220B. The operation of the key structure 1C’ is described below with reference to Figure 15A and Figure 15B The key structure 1C’ is in the unpressed state and the pressing stop state, respectively. As shown in Figure 15A and 15B The key structure 1C’ is in the unpressed state and the pressing stop state, respectively. As shown in Figure 15A When no pressing force is applied to the link mechanism 20C (e.g., the first link 210C), the link mechanism 20C is in the unpressed state by the magnetic attraction force provided by the first magnetic member 610 and the second magnetic member 620. When the key structure 1C’ is in the unpressed state, the coupling axis 201 formed by the coupling of the first connecting portion 214C and the second connecting portion 224B of the first link 210C and the second link 220B is located at the unpressed position L1, and the second link 220B (e.g., the second connecting portion 224B) is located at a position that does not block or blocks less light signals, such that the light receiver 420 receives a strong (e.g., receives more light amount) light signal from the light emitter 410.

[0085] like Figure 15B As shown, when pressure is applied to the first link 210C by the operating member 50, the first link 210C rotates the actuating part 216 counterclockwise towards the seat 10 with the first rotating shaft 101 as the center, and the first magnetic member 610 also moves downward away from the second magnetic member 620 as the first link 210C moves downward. At the same time, the first connecting part 214C of the first link 210C rotates counterclockwise away from the seat 10 (i.e., the coupling shaft 201 moves upward to the pressing stop position L3), and drives the second connecting part 224B of the second link 220B to move upward, so that the second link 220B rotates counterclockwise in the active space 190 with the second rotating shaft 102 as the center and is in a position that can block more light signals, so that the light receiver 420 receives a weaker light signal (e.g., less light) or no light signal from the light emitter 410, thereby triggering the switching unit 40 to generate a trigger signal.

[0086] Figure 16A and 16B These are exploded and combined views of the button structure 1D according to the seventh embodiment of the present invention. In this embodiment, the button structure 1D includes a base 10, a movable member (e.g., a first connecting rod 210B), and a magnetic unit 60. The movable member is rotatably disposed on the base 10. The magnetic unit 60 includes a first magnetic element 610 and a second magnetic element 620. The first magnetic element 610 is disposed on the movable member, and the second magnetic element 620 is disposed corresponding to the first magnetic element 610 to generate a magnetic attraction force. When a pressing force is applied to the movable member, the movable member drives the first magnetic element 610 to move away from the second magnetic element 620, and when the pressing force is released, the magnetic attraction force between the first magnetic element 610 and the second magnetic element 620 causes the movable member to drive the first magnetic element 610 to move closer to the second magnetic element 620 and return to the position before pressing.

[0087] Specifically, Figure 16A The button structure 1D is Figure 6A , Figure 8A and Figure 10A Examples of variations in button structures 1B, 1B', and 1B”, where button structure 1D includes... Figure 6A and Figure 10A A similar torsion spring type reset element 30, and includes... Figure 8A and Figure 10A A similar magnetic unit 60. In this embodiment, the button structure 1D may only include the first link 210B as the moving part, without requiring Figure 6A , 8Aor the second link 220B of the 10A. Further, the magnetic unit 60 can further include a third magnetic member 630. In this embodiment, the first magnetic member 610, the second magnetic member 620 and the third magnetic member 630 of the magnetic unit 60 can be implemented as all magnets or a combination of magnets and ferromagnetic materials, such that the first magnetic member 610 can generate magnetic attraction force with the second magnetic member 620 and the third magnetic member 630. The third magnetic member 630 and the second magnetic member 620 are disposed along the moving path of the movable member (i.e., the first link 210B). When a pressing force is applied to the movable member, the movable member drives the first magnetic member 610 to move away from the second magnetic member 620 and approach the third magnetic member 630. Specifically, the second magnetic member 620 and the third magnetic member 630 can be disposed along the Z-axis direction, and the third magnetic member 630 and the first magnetic member 610 can generate magnetic attraction force therebetween.

[0088] In the following reference Figure 17A and Figure 17B The operation of the key structure 1D is described, in which Figure 17A and Figure 17B respectively show the key structure 1D in the un-pressed state and the pressed end-point state. As shown in Figure 17A , when no pressing force is applied to the movable member (e.g., the first link 210B), the link mechanism 20B is provided with the pre-force by the restoring member 30 and the magnetic attraction force between the first magnetic member 610 and the second magnetic member 620, such that the key structure 1D is in the un-pressed state. When the key structure 1D is in the un-pressed state, the operating member 50 can abut against the positioning portion 218 of the first link 210B, and the actuating portion 216 of the first link 210B does not shield the light passage 150, such that the light signal received by the light receiver 420 from the light emitter 410 is strong (e.g., more light quantity is received).

[0089] As shown in Figure 17BAs shown, when a pressing force is applied to the first link 210B, the first link 210B drives the first magnetic member 610 to move away from the second magnetic member 620 and approach the third magnetic member 630. Specifically, when the pressing force is applied to the first link 210B by the operation member 50, the first link 210B rotates (e.g., counterclockwise rotation) about the first pivot 101 in a first direction, and the first link 210 presses the acting portion 314 of the reset member 30 against the locating portion 312 by the bottom surface 213, so that the acting portion 314 moves relative to the locating portion 312 to deform the acting portion 314 relative to the locating portion 312. The first magnetic member 610 moves downward away from the second magnetic member 620 and approaches the third magnetic member 630, so as to define the pressing stop point of the key structure ID by the magnetic attraction force between the third magnetic member 630 and the first magnetic member 610. Further, the actuating portion 216 rotates and moves to a position that can shield the light channel 150, so that the light receiver 420 receives a weak (e.g., less light amount) or no light signal from the light emitter 410 to trigger the switch unit 40 to generate a trigger signal.

[0090] When the pressing force is released, the reset member 30 provides a restoring force, so that the acting portion 314 pushes against the bottom surface 213 of the first link 210 to drive the first link 210 to rotate clockwise, thereby driving the first magnetic member 610 to move upward away from the third magnetic member 630 and approach the second magnetic member 620, so that the key structure ID returns from the pressing stop point position of the key structure ID to the pre-pressing position (i.e., the un-pressed position) of the key structure ID. Figure 17B Figure 17A Specifically, the key structure ID is positioned in the un-pressed position by the magnetic attraction force between the first magnetic member 610 and the second magnetic member 620.

[0091] The key structure ID is positioned in the un-pressed position or the pressing stop point position by the magnetic attraction force selectively generated by the first magnetic member 610 and the second magnetic member 620 or the third magnetic member 630 in the magnetic unit 60, so as to provide a limiting effect without stopping by mutual collision between elements, effectively reducing the generation of abnormal sound. Further, the key structure ID can generate a paragraph feeling by the magnetic attraction force selectively generated by the first magnetic member 610 and the second magnetic member 620 or the third magnetic member 630. In other words, the key structure ID not only can provide a limiting mechanism by the magnetic unit 60, but also can have a paragraph feeling by the magnetic attraction force provided by the magnetic unit 60, so that the key structure ID can provide a non-collision type silent effect and a non-contact type (magnetic attraction type) paragraph feeling.

[0092] As shown in FIG. 1A, the key structure ID is in the un-pressed position. Figures 18A-19B ​As shown, in the above embodiments, the key structure 1, 1A, 1B, 1B', 1B", 1C or 1D can further comprise a cover 70 to form a housing with the base 10. Specifically, the cover 70 has a shape corresponding to the base 10, such as a rectangular cap, and the cover 70 and the base 10 can be coupled with each other by a coupling mechanism, such as a hook and a coupling hole. For example, the base 10 can have a hook 160 on the opposite side of the Y-axis direction, and the cover 70 has a corresponding coupling hole 710. By the mutual coupling of the hook 160 and the coupling hole 710, the cover 70 and the base 10 can be coupled into a housing to protect the components arranged therein. Furthermore, the cover 70 and the base 10 can have an alignment mechanism therebetween, so that the cover 70 can be easily and correctly coupled with the base 10. For example, the cover 70 can have a protrusion 740, and the base 10 has a corresponding recess 170, so that the cover 70 and the base 10 can be easily aligned by the protrusion 740 aligning with the recess 170. It should be noted that the positions of the coupling mechanism (such as the hook and the coupling hole) and the alignment mechanism (such as the protrusion and the recess) between the cover 70 and the base 10 can be interchanged, and are not limited to the embodiments shown.

[0093] The cover 70 further has an operation hole 730 to allow the operation member 50 to move in the operation hole 730 relative to the cover 70. The operation member 50 preferably has a limiting portion 52 to prevent the operation member 50 from disengaging from the cover 70 when moving in the operation hole 730. For example, the limiting portion 52 can be wings arranged on both sides of the lower end of the operation member 50, and the distance between the two wings is preferably greater than the corresponding width of the operation hole 730, so that when the operation member 50 is inserted into the operation hole 730 from below the cover 70 and moves upward, the limiting portion 52 can interfere with the cover 70 to prevent the operation member 50 from disengaging from above the cover 70. Furthermore, corresponding to the arrangement of the magnetic unit 60, the cover 70 can have an opening 720 for the second magnetic member 620 (and the third magnetic member 630) to correspond to the first magnetic member 610 through the opening 720. For example, the second magnetic member 620 (and the third magnetic member 630) can be arranged in or near the opening 720 of the cover 70 corresponding to the first magnetic member 610.

[0094] As can be seen from the above embodiments, the key structure of the present application can use a linkage mechanism or a magnetic unit to generate a non-collision limiting mechanism to reduce the abnormal sound generated by the collision of the key components in motion. Furthermore, by the arrangement of the linkage mechanism or the magnetic unit, the key structure of the present application can generate a paragraph feeling to provide a clear operation experience with both quiet and pressing feeling.

[0095] The present application has been described by the above embodiments, however, the above embodiments are for illustrative purposes only and not for limiting. Those skilled in the art should know that the embodiments specifically described herein can have other modifications of the illustrative embodiments without departing from the spirit of the present application. Therefore, the scope of the present application also encompasses such modifications and is only limited by the appended claims.

Claims

1. A key structure characterized by Comprising, a seat body; and a linkage mechanism comprising a plurality of links movably coupled relative to each other, the plurality of links comprising at least two links each rotatably positioned at the seat body, the plurality of links comprising a first link and a second link, the first link comprising a first connecting portion, the second link comprising a second connecting portion, the first connecting portion comprising two first connecting segments, the second connecting portion comprising two second connecting segments, the first link comprising a first pivot portion, the first link coupled with the seat body via the first pivot portion to form a first pivot axis, the second link comprising a second pivot portion, the second link coupled with the seat body via the second pivot portion to form a second pivot axis, the first connecting portion connecting the first pivot portion and located at one end of the first link, the second connecting portion connecting the second pivot portion and located at one end of the second link; wherein, when a pressing force is applied to the linkage mechanism, the plurality of links are connected to limit a range of rotation of the plurality of links relative to the seat body, the two first connecting segments are disposed along the first pivot axis at opposite ends of the first pivot portion, the two second connecting segments are disposed along the second pivot axis at opposite ends of the second pivot portion, the two second connecting segments each coupled with a corresponding one of the two first connecting segments, at least one of the two first connecting segments and the two second connecting segments elastically deformed to provide a pressing segment feeling.

2. The key structure according to claim 1, wherein The first link and the second link are coupled to form a coupling axis, when the pressing force is applied to the first link, the first link rotates along a first direction with the first pivot axis as a center and drives the coupling axis to move relative to the seat body, so that the second link rotates along a second direction with the second pivot axis as a center, wherein the first direction is the same as or opposite to the second direction.

3. The key structure according to claim 2, wherein The first connecting portion and the second connecting portion are mutually sleeved to form the coupling axis.

4. The key structure according to claim 3, wherein The second link further comprises a hand feeling actuating portion connected to the second pivot portion and movably coupled to the first pivot portion, when the first link drives the second link to move, the hand feeling actuating portion moves relative to the first pivot portion.

5. The key structure according to claim 4, wherein The hand feeling actuating portion has a protruding portion corresponding to the first pivot portion, when the hand feeling actuating portion moves relative to the first pivot portion, the protruding portion interferes with the first pivot portion.

6. The key structure of claim 1, wherein The key structure further comprises a reset member disposed at the seat body, wherein, when the pressing force is released, the reset member provides a restoring force, so that the plurality of links are connected to return to a position before pressing.

7. The key structure according to claim 6, wherein The reset member comprises an elastic member having a positioning portion and an acting portion, the positioning portion is positioned at the seat body, and the acting portion extends corresponding to one of the plurality of links, when the pressing force is applied to the linkage mechanism, the linkage mechanism presses against the acting portion to drive the acting portion to move relative to the positioning portion.

8. The key structure according to claim 1, 6 or 7, wherein The key structure further comprises a magnetic unit, wherein the magnetic unit comprises a first magnetic member and a second magnetic member, the first magnetic member is arranged on the linkage mechanism, and the second magnetic member is arranged corresponding to the first magnetic member to generate a magnetic attraction force, when the pressing force is applied to the linkage mechanism, the linkage mechanism drives the first magnetic member to move away from the second magnetic member, and when the pressing force is released, the magnetic attraction force makes the linkage mechanism drive the first magnetic member to move close to the second magnetic member to return to the position before pressing.

9. The key structure according to any one of claims 1 to 3, wherein The key structure further comprises a switch unit, the switch unit is arranged corresponding to the linkage mechanism, when the pressing force is applied to the linkage mechanism, the linkage mechanism moves relative to the seat body to trigger the switch unit.

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