Key structure of scissor-foot keyboard and scissor-foot keyboard

Abstract

The present application discloses a key structure of a scissor-foot keyboard and a scissor-foot keyboard, which relates to the technical field of scissor-foot keyboards and is invented to solve the problem of high maintenance cost of the key structure of the scissor-foot keyboard in the related art. The key structure of the scissor-foot keyboard includes a fixed plate assembly and a key assembly, and the key assembly includes a key cap, a key base, a scissor foot connected between the key cap and the key base, and an elastic member for applying a reset force to the key cap; a first clamping portion is provided at the edge of the key base, a second clamping portion is provided on the fixed plate assembly, and the second clamping portion is located at the edge of the key base, and the first clamping portion and the second clamping portion are detachably clamped so that the key assembly can be installed together or separated from the fixed plate assembly; a disassembly space is provided around the key assembly for a disassembly tool to extend into, and the first clamping portion and the second clamping portion are both located in the disassembly space. The present application can be used in communication devices such as notebooks, tablet computers and mobile phones.

Description

Technical Field

[0001] The present application relates to the technical field of scissor-foot keyboards, and in particular to a key structure of a scissor-foot keyboard and a scissor-foot keyboard. Background Art

[0002] Keyboards, as a common input device, are widely used in computers and various electronic devices. With the widespread use of electronic products, keyboards, as a means of human-computer communication, play a crucial role in the overall system. Currently, there are many keyboard designs, among which the scissor-type keyboard is a popular choice. Scissor-type keyboards are popular among consumers because they require less effort to type, are less tiring, and evenly distribute the force across the keycap, resulting in a more comfortable feel.

[0003] A related art scissor-keyboard has a keycap connected to a fixed plate assembly via a scissor foot. If a key structure in such a scissor-keyboard is damaged, such as if the scissor foot becomes stuck, the entire scissor-keyboard must be disassembled to replace the key structure components. This makes replacement and repair of the key structure components cumbersome, time-consuming, and labor-intensive, hindering maintenance costs. Summary of the Invention

[0004] The embodiments of the present application provide a key structure of a scissor-foot keyboard and a scissor-foot keyboard, which are used to solve the problem of high maintenance cost of the key structure of the scissor-foot keyboard in the related art.

[0005] To achieve the above-mentioned objectives, in the first aspect, an embodiment of the present application provides a key structure of a scissor-foot keyboard, including a fixed plate assembly and a key assembly, the key assembly including a key cap, a key base, a scissor foot connected between the key cap and the key base, and an elastic member for applying a reset force to the key cap; a first clamping portion is provided at the edge of the key base, a second clamping portion is provided on the fixed plate assembly, the second clamping portion is located at the edge of the key base, at least one of the first clamping portion and the second clamping portion is an elastic clamping portion, the first clamping portion and the second clamping portion are detachably clamped so that the key assembly can be installed together with or separated from the fixed plate assembly; a disassembly space is provided around the key assembly for a disassembly tool to extend into, and the first clamping portion and the second clamping portion are both located in the disassembly space.

[0006] In a second aspect, an embodiment of the present application provides a scissor-foot keyboard, comprising the key structure described in the first aspect.

[0007] The key structure and scissor-foot keyboard of the scissor-foot keyboard provided in the embodiment of the present application have a key structure and a scissor-foot keyboard. Since at least one of the first clamping portion and the second clamping portion is an elastic clamping portion, the first clamping portion and the second clamping portion are detachably clamped, and a disassembly space for a disassembly tool to extend into is provided around the key assembly. The first clamping portion and the second clamping portion are both located in the disassembly space. When disassembling the key assembly, the disassembly tool extends into the disassembly space and applies a force to the first clamping portion or the second clamping portion. Under the action of the disassembly tool, the first clamping portion or the second clamping portion undergoes elastic deformation, thereby disengaging the first clamping portion from the second clamping portion, and further detaching the key assembly from the fixed plate assembly. After disassembly is completed, a new key assembly is placed in the position of the old key assembly, so that the first clamping portion and the second clamping portion are clamped, thereby completing the installation of the new key assembly and the fixed plate assembly. Therefore, the key assembly and the fixed plate assembly can be separated by using a disassembly tool, so that there is no need to disassemble the main structure of the scissor foot keyboard when replacing the key assembly, which improves the replacement efficiency of the key assembly and helps reduce the maintenance cost of the scissor foot keyboard. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0009] Figure 1a This is a schematic structural diagram of a scissor-foot keyboard for a notebook in some embodiments of the present application;

[0010] Figure 1b for Figure 1a A partial enlarged view of the scissor-foot keyboard shown;

[0011] Figure 1c A partial top view of a row of keys of a scissor-keyboard in some embodiments of the present application;

[0012] Figure 2 AA sectional view of the key of FIG1 ;

[0013] Figure 3 BB sectional view of the key of FIG1;

[0014] Figure 4 for Figure 2 A stereoscopic view of the key assembly in one viewing angle;

[0015] Figure 5 for Figure 2 A stereoscopic view of the key assembly in another perspective;

[0016] Figure 6 for Figure 2 A perspective view of the fixing plate assembly in FIG.

[0017] Figure 7 for Figure 6 A top view of the mounting opening on the middle fixing plate;

[0018] Figure 8a This is a schematic diagram of the disassembly tool when removing the key assembly;

[0019] Figure 8b This is a schematic diagram of the disassembly tool after removing the key assembly;

[0020] Figure 9a for Figure 2 Schematic diagram of the structure of the button cap;

[0021] Figure 9b is a cross-sectional view of a button cap in some embodiments of the present application;

[0022] Figure 10 for Figure 4 A three-dimensional view of the key assembly with the key cap removed;

[0023] Figure 11 for Figure 10 Schematic diagram of the structure after removing the first connecting rod and the second connecting rod;

[0024] Figure 12 Shown are schematic diagrams of key structures in other embodiments of the present application;

[0025] Figure 13 Schematic diagram of the key structure in some other embodiments of the present application;

[0026] Figure 14 is a side view of a key structure in some other embodiments of the present application;

[0027] Figure 15 for Figure 14 main view. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0029] In the description of this application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0030] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "install", "connect", and "connect" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0031] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. Throughout this application, unless otherwise specified, "plurality" means two or more.

[0032] The key structure of the scissor-foot keyboard in the embodiment of the present application can be applied to laptop computers, tablet computers, and communication devices such as mobile phones, without any specific limitation here.

[0033] The following describes the key structure of a scissor keyboard used in a notebook computer as an example. The key structure of other types of scissor keyboards can be specifically configured with reference to the key structure of the scissor keyboard used in a notebook computer.

[0034] like Figure 1a and Figure 1b As shown, Figure 1a This is a schematic diagram of the structure of the scissor-foot keyboard of a notebook in some embodiments of the present application. Figure 1b for Figure 1a A partial enlarged view of a scissor keyboard is shown. The scissor keyboard is located on a notebook housing 300 and includes multiple rows of keys, each row comprising keys spaced laterally along the notebook housing 300. Key F is shown detached from the scissor keyboard.

[0035] Figure 1c 、 Figure 2 and Figure 3 As shown, Figure 1c This is a partial top view of a row of keys of a scissor-foot keyboard in some embodiments of the present application. Figure 2This is the AA cross-sectional view of a key in Figure 1. Figure 3 This is a BB cross-sectional view of a key in Figure 1. The key structure of this key includes a fixed plate assembly 1 and a key assembly 2. The key assembly 2 includes a key cap 3, a key base 4, a scissor leg 5 connected between the key cap 3 and the key base 4, and an elastic member 6 for applying a restoring force to the key cap 3.

[0036] like Figure 2 、 Figures 4 to 6 As shown, Figure 4 、 Figure 5 for Figure 2 The three-dimensional diagram of the key assembly 22 at different viewing angles, Figure 6 for Figure 2 A perspective view of the fixed plate assembly 1 in FIG. A first clamping portion 41 is provided at the edge of the key base 4, and a second clamping portion 12 is provided on the fixed plate assembly 1. The second clamping portion 12 is located at the edge of the key base 4. The first clamping portion 41 is an elastic clamping portion and is detachably engaged with the second clamping portion 12, so that the key assembly 2 can be installed together or separated from the fixed plate assembly 1.

[0037] Of course, in addition to setting the first clamping part 41 as an elastic clamping part, the second clamping part 12 can also be set as an elastic clamping part, or the first clamping part 41 and the second clamping part 12 can both be set as elastic clamping parts, so that the first clamping part 41 and the second clamping part 12 can also be detachably clamped.

[0038] like Figure 2 、 Figure 8a as well as Figure 8b As shown, Figure 8a This is a schematic diagram of the disassembly tool 200 disassembling the key assembly 2. Figure 8b This is a schematic diagram of the key assembly 2 after being removed by the removal tool 200. The key assembly 2 is surrounded by a removal space 7 into which the removal tool 200 can extend. The first engaging portion 41 and the second engaging portion 12 are both located within the removal space 7. The removal space 7 can be understood as the space between the key assembly 2 and surrounding components, such as the space between one key assembly 2 and an adjacent key assembly 2.

[0039] The key structure of the scissor foot 5 keyboard is as follows: Figure 2 、 Figure 8a as well as Figure 8bAs shown, since at least one of the first clamping portion 41 and the second clamping portion 12 is an elastic clamping portion, and the first clamping portion 41 and the second clamping portion 12 are detachably clamped, and the key assembly 2 is surrounded by a disassembly space 7 for the disassembly tool 200 to extend into, the first clamping portion 41 and the second clamping portion 12 are both located in the disassembly space 7. In this way, when disassembling the key assembly 2, the disassembly tool 200 extends into the disassembly space 7 and applies a force to the first clamping portion 41 or the second clamping portion 12. Under the action of the disassembly tool 200, the first clamping portion 41 or the second clamping portion 12 is elastically deformed, thereby disengaging the first clamping portion 41 from the second clamping portion 12, thereby detaching the key assembly 2 from the fixed plate assembly 1 (as shown in FIG. Figure 1b and Figure 8b After disassembly is complete, the new key assembly 2 is placed in the position of the old key assembly 2, so that the first engaging portion 41 engages with the second engaging portion 12, thereby completing the installation of the new key assembly 2 and the fixed plate assembly 1. Thus, the key assembly 2 and the fixed plate assembly 1 can be separated using the disassembly tool 200. This eliminates the need to disassemble the main structure of the scissor keyboard when replacing the key assembly 2, improving the efficiency of replacing the key assembly 2 and thereby reducing the maintenance cost of the scissor keyboard.

[0040] In some embodiments, as Figure 2 、 Figure 8a as well as Figure 8b As shown, the first clamping portion 41 includes two elastic clamping platforms 411 respectively provided at the two end edges of the key base 4 along the first direction Y. The first direction Y is a direction perpendicular to the thickness direction of the fixing plate assembly 1 .

[0041] The second engaging portion 12 includes two latches 121 located at either end of the key base 4 along the first direction Y. Each latch 121 defines a latching hole 122 extending through the latch 121 along the first direction Y. A removal tool clearance opening 123 is defined on the side of the latch 121 proximal to the key cap 3 and communicates with the latching hole 122. Two elastic latching platforms 411 extend into the latching holes 122 of the two latches 121, respectively, to removably engage the first engaging portion 41 with the second engaging portion 12.

[0042] By setting it in this way, on the one hand, the first clamping portion 41 and the second clamping portion 12 can be clamped more firmly, so that the key assembly 2 is more firmly installed on the fixed plate assembly 1. On the other hand, it is convenient to use the two ends of the disassembly tool 200 to clamp out the key assembly 2 during disassembly, that is: Figure 8a as well as Figure 8bAs shown, during disassembly, the two ends of the disassembly tool 200 extend into the disassembly space 7, and pass through the disassembly tool avoidance opening 123 to contact the two elastic clamping platforms 411, and then the two ends of the disassembly tool 200 are used to squeeze the two elastic clamping platforms 411 respectively, so that the two elastic clamping platforms 411 are elastically deformed in the first direction Y, that is, under the squeezing of the disassembly tool 200, the two elastic clamping platforms 411 shrink inward, thereby separating the two elastic clamping platforms 411 from the corresponding clamping holes 122 of the clamping ears 121, and finally under the clamping of the disassembly tool 200, the button assembly 2 is separated from the fixed plate assembly 1.

[0043] Of course, the positions of the elastic clamping platform 411 and the clamping hole 122 can also be swapped, that is, the first clamping portion 41 includes two clamping ears 121 respectively provided at the two end edges of the key base 4 along the first direction Y. The second clamping portion 12 includes two elastic clamping platforms 411 respectively located at the two ends of the key base 4 along the first direction Y. The two elastic clamping platforms 411 extend into the clamping holes 122 of the two clamping ears 121 in a one-to-one correspondence, so that the first clamping portion 41 and the second clamping portion 12 are detachably clamped. When disassembling the key assembly 2, the disassembly tool 200 can disengage the elastic clamping platform 411 from the clamping hole 122 by squeezing the elastic clamping platform 411 outward, and then the operator can apply force to the key cap 3 of the key assembly 2 through another tool (such as a suction cup), thereby detaching the key assembly 2 from the fixed assembly.

[0044] In some embodiments, as Figure 2 、 Figure 4 and Figure 6 The fixing plate assembly 1 includes a circuit board 13 and a fixing plate 14 stacked on the side of the circuit board 13 near the key cap 3. The fixing plate 14 defines a mounting opening 141, into which the key base 4 fits. Two latches 121 are disposed at the edges of the mounting opening 141 along the first direction Y.

[0045] In this embodiment, the key base 4 is fitted into the mounting opening 141 , so that the mounting opening 141 can limit the key base 4 , thereby reducing the shaking of the key base 4 .

[0046] In some embodiments, as Figure 5 and Figure 6As shown, the mounting opening 141 includes two first sidewalls 142 arranged along the second direction X. Positioning slots 143 are provided on each of the two first sidewalls 142. Positioning protrusions 42 are provided on the sidewalls on opposite sides of the key base 4 along the second direction X. Each positioning protrusion 42 engages with a corresponding positioning slot 143. The second direction X is perpendicular to the thickness of the fixing plate assembly 1. The second direction X can be parallel to or perpendicular to the first direction Y, without specific limitation. The figure illustrates the case where the second direction X is perpendicular to the first direction Y.

[0047] In this embodiment, the positioning protrusion 42 cooperates with the positioning groove 143 , which can further limit the key base 4 , thereby further reducing the shaking of the key base 4 in the installation opening 141 .

[0048] In some embodiments, as Figure 7 As shown, Figure 7 This is a top view of the mounting opening 141 on the fixing plate 14. The two positioning slots 143 are unequally spaced from the first plane 91, meaning L1 and L2 are unequal in the figure. The first plane 91 is the midplane of the mounting opening 141 along the third direction M, which is perpendicular to both the second direction X and the thickness of the fixing plate assembly 1.

[0049] By setting L1 and L2 to be unequal, a foolproof effect can be achieved, thereby preventing the key base 4 from being installed upside down in the second direction X.

[0050] Of course, the positioning protrusion 42 and the positioning groove 143 may also be positioned in opposite positions, that is, the positioning groove 143 is provided at the edge of the button base 4 , and the positioning protrusion 42 is provided on the first side wall 142 of the mounting opening 141 , and the specific arrangement may be determined according to actual conditions.

[0051] In some embodiments, as Figure 3 、 Figure 4 and Figure 5 As shown, a limiting protrusion 43 is provided on the side of the key base 4 near the key cap 3. The limiting protrusion 43 protrudes beyond the edge of the key base 4 and abuts against the surface of the fixing plate 14 near the key cap 3. In this way, in the direction Z perpendicular to the thickness of the fixing plate assembly 1, the limiting protrusion 43 can limit the key base 4 and prevent the key base 4 from sinking too much into the installation opening 141.

[0052] In some embodiments, as Figure 4 and Figure 5As shown, there are multiple limiting protrusions 43, which are spaced apart along the circumference of the key base 4. For example, there may be four limiting protrusions 43, which are arranged at the four corners of the key base 4. By providing multiple limiting protrusions 43, the key base 4 can be better limited and the key base 4 can be prevented from tilting in the installation opening 141.

[0053] In some embodiments, as Figure 2 and Figure 9a As shown, Figure 9a for Figure 2 Schematic diagram of the key cap 3 in FIG. The key cap 3 is provided with first hinge holes 31 and first slide slots 32 spaced apart along a third direction M. The third direction M is perpendicular to the thickness direction Z of the fixed plate assembly 1. The first hinge hole 31 has an expandable first notch 311 on the side adjacent to the key base 4. The first slide slot 32 extends along the third direction M with one end open and the other closed.

[0054] like Figure 2 、 Figure 10 and Figure 11 As shown, Figure 10 for Figure 4 A three-dimensional view of the key assembly 2 with the key cap 3 removed, Figure 11 for Figure 10 Schematic diagram of the structure after removing the first connecting rod 52 and the second connecting rod 53. The key base 4 is provided with a second hinge hole 44 and a second slide groove 45 spaced apart along the third direction M. The second hinge hole 44 has an expandable second notch 441 on the side near the key cap 3. The second slide groove 45 extends along the third direction M, with one end open and the other closed.

[0055] like Figure 2 、 Figure 10 and Figure 11 As shown, the scissor foot 5 includes a first connecting rod 52 and a second connecting rod 53 arranged crosswise; one end of the first connecting rod 52 cooperates with the first hinge hole 31 through a hinge shaft 54, and the other end cooperates with the second slide groove 45 through a hinge shaft 54; one end of the second connecting rod 53 cooperates with the second hinge hole 44 through a hinge shaft 54, and the other end cooperates with the first slide groove 32 through a hinge shaft 54.

[0056] When the button cap 3 is pressed, the end of the first connecting rod 52 connected to the second sliding groove 45 and the end of the second connecting rod 53 connected to the first sliding groove 32 slide along the third direction M, so that the opening angle θ (that is, Figure 2After the pressing is completed, the finger is released and the key cap 3 is reset under the action of the reset force of the elastic member 6. At the same time, the opening angle θ between the first connecting rod 52 and the second connecting rod 53 is reduced.

[0057] In this embodiment, since the first hinge hole 31 has an expandable first notch 311 on the side close to the key base 4, the first slide groove 32 extends along the third direction M, and is open at one end and closed at the other end, and the second hinge hole 44 has an expandable second notch 441 on the side close to the key cap 3, and the second slide groove 45 extends along the third direction M, and is open at one end and closed at the other end, this can facilitate the disassembly and assembly of the first connecting rod 52 and the second connecting rod 53, that is: through the first notch 311 of the first hinge hole 31 and the open end of the second slide groove 45, the hinge shafts 54 at both ends of the first connecting rod 52 can be easily disassembled from the first hinge hole 31 and the second slide groove 45; through the second notch 441 of the second hinge hole 44 and the open end of the first slide groove 32, the hinge shafts 54 at both ends of the second connecting rod 53 can be easily disassembled from the second hinge hole 44 and the first slide groove 32, thereby helping to reduce the maintenance cost of the scissor foot 5.

[0058] The middle parts of the first connecting rod 52 and the second connecting rod 53 may be hinged or not hinged, which is not specifically limited here. The elastic member 6 may be made of elastic material, or a spring, a spring sheet, etc., which is not specifically limited here.

[0059] Of course, the scissor legs 5 are not limited to the above structure. The scissor mechanism formed by the first connecting rod 52 and the second connecting rod 53 can also be replaced by a mechanism formed by a guide rod and a sleeve. For example, a sleeve is provided on the key base 4, and the extension direction of the sleeve is parallel to the thickness direction Z of the fixed plate assembly 1. A guide rod is provided on the key cap 3, and the guide rod and the sleeve are slidably matched.

[0060] In some embodiments, as Figure 2 、 Figure 9a and Figure 11 As shown, the first notch 311 is in a flared shape along the direction close to the key base 4 ; and the second notch 441 is in a flared shape along the direction close to the key cap 3 .

[0061] By setting the first notch 311 into a flared shape, the first notch 311 plays a guiding role, which can facilitate the smooth installation of the hinge shaft 54 ​​at one end of the first connecting rod 52 into the first hinge hole 31; by setting the second notch 441 into a flared shape, the second notch 441 plays a guiding role, which can facilitate the smooth installation of the hinge shaft 54 ​​at one end of the second connecting rod 53 into the second hinge hole 44.

[0062] In some embodiments, as Figure 2 、 Figure 9a and Figure 11 As shown, the closed end of the first chute 32 is disposed near the first hinge hole 31, and the open end of the first chute 32 is disposed away from the first hinge hole 31. The closed end of the second chute 45 is disposed near the second hinge hole 44, and the open end of the second chute 45 is disposed away from the second hinge hole 44.

[0063] By such arrangement, during the process of pressing or resetting the button cap 3, the hinge shaft 54 ​​at one end of the first connecting rod 52 is not easy to slide out from the open end of the second sliding groove 45, and the hinge shaft 54 ​​at one end of the second connecting rod 53 is not easy to slide out from the open end of the first sliding groove 32, thereby ensuring that the button cap 3 is pressed or reset smoothly.

[0064] In some embodiments, as Figure 3 、 Figure 10 and Figure 11 As shown, the first connecting rod 52 and the second connecting rod 53 are provided in two groups, and the two groups are respectively located on both sides of the mid-plane 92 of the key cap 3 along the second direction X. In this way, the two groups of first connecting rods 52 and second connecting rods 53 can better support the key cap 3, so that the force on the key cap 3 in the second direction X is balanced, thereby making the key cap 3 move more smoothly.

[0065] In some embodiments, as Figure 9b As shown, the keycap 3 includes an inner keycap wall 35 and an outer keycap wall 36 located outside the inner keycap wall 35. The outer keycap wall 36 is detachably connected to the inner keycap wall 35. In this way, when the outer keycap wall 36 is damaged, the outer keycap wall 36 can be removed and replaced without replacing the entire keycap 3, thereby reducing the maintenance cost of the keycap 3.

[0066] The outer keycap wall 36 and the inner keycap wall 35 may be detachably connected by snapping or bonding, which is not specifically limited here.

[0067] In some embodiments, as Figure 9b As shown, the outer keycap wall 36 is made of a material with a lower hardness than the inner keycap wall 35. By making the inner keycap wall 35 harder, it provides support for the outer keycap wall 36. By making the inner keycap wall 35 softer, the softer outer keycap wall 36 acts as a buffer when a user strikes the keycap 3, significantly reducing damage to the keycap 3.

[0068] The material of the inner keycap wall 35 can be hard plastic, such as ABS (Acrylonitrile Butadiene Styrene plastic), PC (Polycarbonate), etc., and the material of the outer keycap wall 36 can be soft rubber, such as silicone, TPU (Thermoplastic polyurethanes; thermoplastic polyurethane elastomer rubber), TPR (Thermo-Plastic-Rubber material; thermoplastic rubber material), etc.

[0069] The key structure for realizing key functions in the embodiments of the present application is not unique, and includes at least the following embodiments:

[0070] Figures 2 to 5 Figure 2 shows a schematic diagram of the key structure in some embodiments of the present application. A mounting hole 46 is defined in the key base 4. The key assembly 2 further includes a silicone key 81. One end of the silicone key 81 extends into the mounting hole 46 and is fixedly connected to the wall of the mounting hole 46. The other end of the silicone key 81 is connected to the inner wall of the key cap 3. The silicone key 81 is an elastic member 6.

[0071] A first contact (not shown in the figure) and a second contact (not shown in the figure) are provided on the area of ​​the fixed plate assembly 1 corresponding to the key base 4; the silicone key 81 is configured as follows: when the key cap 3 is pressed, the silicone key 81 can contact the first contact and the second contact to make the first contact and the second contact conductive, so that the electrical function of the key can be realized according to the change of the conductive and disconnected states of the first contact and the second contact.

[0072] One end of the silicone button 81 extending into the mounting hole 46 may be fixed by snapping or adhesively bonding with the hole wall of the mounting hole 46 , which is not specifically limited here.

[0073] The silicone key 81 can be connected to the key cap 3 through the following structure, such as Figure 3 , Figure 8 and Figure 10 As shown, a mounting sleeve 33 is provided in the central area of ​​the key cap 3 , and a mounting post 811 is provided at one end of the silicone key 81 close to the key cap 3 , and the mounting post 811 is inserted into the mounting sleeve 33 .

[0074] In this embodiment, since the silicone button 81 has a certain elasticity, that is, when the finger releases the button cap 3, the button cap 3 can be reset under the elasticity of the silicone button 81, then the silicone button 81 can be used as the elastic member 6, and there is no need to set up other elastic members, thereby making the structure of the button assembly 2 more compact.

[0075] Figure 12Schematic diagrams of key structures in other embodiments of the present application are shown. The key assembly 2 also includes a light shielding member 82 fixed to the inner wall of the key cap 3. A light shielding member avoidance hole 47 is formed in the key base 4 in an area corresponding to the light shielding member 82. The elastic member 6 is a spring disposed between the key cap 3 and the key base 4.

[0076] A photoelectric tube 11 is further provided on the area of ​​the fixing plate assembly 1 corresponding to the key base 4 . The photoelectric tube 11 includes a light-emitting tube 111 and a receiving tube 112 that are spaced apart.

[0077] The shading member 82 is configured as follows: when the key cap 3 is pressed, the shading member 82 can pass through the shading member avoidance hole 47 and extend between the light-emitting tube 111 and the receiving tube 112 to block the light emitted by the light-emitting tube 111. In this way, the receiving tube 112 cannot receive the light signal emitted by the light-emitting tube 111, and the signal output by the receiving tube 112 will undergo some changes. According to the changes in the signal output by the receiving tube 112, the electrical function of the key can be realized.

[0078] Among them, such as Figure 12 As shown, the photoelectric tube 11 can be arranged on a side of the circuit board 13 away from the key cap 3, and a light-shielding member avoidance opening 131 is opened on the circuit board 13. When the key cap 3 is pressed, the light-shielding member 82 can pass through the light-shielding member avoidance hole 47 and the light-shielding member avoidance opening 131 to extend between the light-emitting tube 111 and the receiving tube 112 to block the light emitted by the light-emitting tube 111.

[0079] The light shielding member 82 may be in the shape of a rod or a sheet, and is not specifically limited here.

[0080] In this embodiment, the photoelectric tube 11 is provided, that is, the electrical function of the key is realized through the photoelectric effect, which can make the response speed of the key faster when it is pressed, thereby improving the sensitivity of the key.

[0081] Figure 13 Schematic diagrams of the key structure in other embodiments of the present application are shown. The key assembly 2 also includes a magnetic member 83 fixed to the inner wall of the key cap 3. The key base 4 has a magnetic member avoidance hole 48 at a position corresponding to the magnetic member 83. The elastic member 6 is a spring disposed between the key cap 3 and the key base 4.

[0082] A Hull switch 16 is also provided on the area of ​​the fixing plate assembly 1 corresponding to the key base 4 .

[0083] The magnetic member 83 is configured as follows: when the key cap 3 is pressed, the magnetic member 83 can pass through the magnetic member avoidance hole 48 and be located within the maximum sensing area of ​​the Hull switch 16. At this time, a Hull effect is generated between the magnetic member 83 and the Hull switch 16, causing the state of the Hull switch 16 to change. According to the change in the state of the Hull switch 16, the electrical function of the key can be realized.

[0084] In this embodiment, by setting it as a Hull switch 16, that is, realizing the electrical function of the key through the Hull effect, the response speed of the key when being pressed can be made faster, thereby improving the sensitivity of the key.

[0085] The magnetic member 83 may be a permanent magnet or an electromagnet, which is not specifically limited here. Figure 12 As shown, the Hull switch 16 can be set on the side of the circuit board 13 away from the key cap 3. A magnetic component avoidance opening 132 is opened on the circuit board 13. When the key cap 3 is pressed, the magnetic component 83 can pass through the magnetic component avoidance hole 48 and extend into the magnetic component avoidance opening 132 to approach the Hull switch 16, thereby generating a Hull effect between the magnetic component 83 and the Hull switch 16.

[0086] Figure 14 and Figure 15 Schematic diagrams of key structures in other embodiments of the present application. The key assembly 2 further includes a push rod 84 fixed to the key cap 3, a contact avoidance hole 49 is formed on the key base 4, and the elastic member 6 is a spring disposed between the key cap 3 and the key base 4.

[0087] A first elastic contact 113 and a second elastic contact 114 are provided in an area of ​​the fixing plate assembly 1 corresponding to the key base 4 . The first elastic contact 113 and the second elastic contact 114 are passed through the contact avoidance hole 49 and abut against each other.

[0088] The push rod 84 is configured such that when the key cap 3 is pressed, one end of the push rod 84 can be inserted between the first elastic contact 113 and the second elastic contact 114, thereby disconnecting the first elastic contact 113 and the second elastic contact 114. In this way, the electrical function of the key can be realized according to the change in the conductive and disconnected states of the first elastic contact 113 and the second elastic contact 114.

[0089] In this embodiment, the change of the on and off states of the first elastic contact 113 and the second elastic contact 114 is achieved mechanically, which can increase the reliability of the key and eliminate the need for expensive switch devices, thereby helping to reduce the cost of the key.

[0090] In the description of this specification, specific features, structures, materials or characteristics may be combined in an appropriate manner in any one or more embodiments or examples.

[0091] The above are only specific embodiments of the present application, but the scope of protection of this application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

Claims

1. A key structure of a scissor-foot keyboard, characterized in that: The key assembly comprises a fixing plate assembly and a key assembly, wherein the key assembly comprises a key cap, a key base, a scissor leg connected between the key cap and the key base, and an elastic member for applying a restoring force to the key cap; The button cap forms a receiving space, and the scissor legs extend into the receiving space and are connected to the button cap; A first clamping portion is provided at the edge of the key base, and a second clamping portion is provided on the fixing plate assembly. The second clamping portion is located at the edge of the key base, and at least one of the first clamping portion and the second clamping portion is an elastic clamping portion. The first clamping portion and the second clamping portion are detachably connected to each other, so that the key assembly can be installed together with or separated from the fixing plate assembly. The button assembly is surrounded by a disassembly space into which a disassembly tool can be inserted, and the first clamping portion and the second clamping portion are both located in the disassembly space; The first clamping portion includes two elastic clamping platforms respectively provided at two end edges of the button base along a first direction, wherein the first direction is a direction perpendicular to the thickness direction of the fixing plate assembly; The second clamping portion includes two clamping ears respectively located at two ends of the key base along the first direction, each clamping ear having a clamping hole passing through the clamping ear along the first direction, and a disassembly tool avoidance opening formed on a side of the clamping ear close to the key cap, the disassembly tool avoidance opening being in communication with the clamping hole; The two elastic clamping platforms extend into the clamping holes of the two clamping ears in a one-to-one corresponding manner, so that the first clamping portion and the second clamping portion are detachably clamped.

2. The key structure of the scissor-foot keyboard according to claim 1, characterized in that: The fixing plate assembly includes a circuit board and a fixing plate stacked on a side of the circuit board close to the key cap; The fixing plate is provided with a mounting opening, and the button base is cooperatively arranged in the mounting opening.

3. The key structure of the scissor-foot keyboard according to claim 2, characterized in that: The mounting opening includes two first side walls arranged along a second direction, and the two first side walls are respectively provided with positioning grooves; the second direction is a direction perpendicular to the thickness direction of the fixing plate assembly; Along the second direction, two ends of the button base along the second direction are respectively provided with positioning protrusions, and each of the positioning protrusions is matched with the corresponding positioning groove.

4. The key structure of the scissor-foot keyboard according to claim 3, characterized in that: The distances between the positioning grooves on the two first side walls and the first plane are unequal; The first plane is a median plane of the mounting opening along the third direction, and the second direction, the third direction, and the thickness direction of the fixing plate assembly are perpendicular to each other.

5. The key structure of the scissor-foot keyboard according to claim 2, characterized in that: A limiting protrusion is provided on one side of the key base close to the key cap. The limiting protrusion protrudes out of the edge of the key base and abuts against a surface of one side of the fixing plate close to the key cap.

6. The key structure of the scissor-foot keyboard according to claim 1, characterized in that: The key cap includes an inner key cap wall and an outer key cap wall located outside the inner key cap wall, and the outer key cap wall is detachably connected to the inner key cap wall.

7. The key structure of the scissor-foot keyboard according to claim 6, characterized in that: The material hardness of the outer keycap wall is less than the material hardness of the inner keycap wall.

8. The key structure of the scissor-foot keyboard according to claim 1, characterized in that: The button assembly further includes one of a silicone button, a light shielding member, a magnetic member, and a push rod; When the key assembly includes the silicone key, a mounting through-hole is formed on the key base; one end of the silicone key extends into the mounting through-hole and is fixedly connected to the hole wall of the mounting through-hole, and the other end is connected to the inner wall of the key cap; the silicone key is the elastic member; a first contact and a second contact are formed on the region of the fixing plate assembly corresponding to the silicone key; the silicone key is configured such that when the key cap is pressed, the silicone key can contact the first contact and the second contact, so that the first contact and the second contact are conductively connected; When the key assembly includes the light shielding member, the light shielding member is fixed to the inner wall of the key cap, and a light shielding member avoidance hole is formed in the area of ​​the key base corresponding to the light shielding member; the fixing plate assembly is further provided with a photoelectric pair of tubes in the area corresponding to the key base, and the photoelectric pair of tubes includes a light emitting tube and a receiving tube that are spaced apart; the light shielding member is configured such that when the key cap is pressed, the light shielding member can pass through the light shielding member avoidance hole and extend between the light emitting tube and the receiving tube to block the light emitted by the light emitting tube; When the key assembly includes the magnetic member, the magnetic member is fixed to the inner wall of the key cap, and a magnetic member avoidance hole is formed at a position of the key base corresponding to the magnetic member; a Hull switch is further provided on an area of ​​the fixing plate assembly corresponding to the key base; and the magnetic member is configured such that when the key cap is pressed, the magnetic member can pass through the magnetic member avoidance hole and be located within the maximum sensing area of ​​the Hull switch; When the key assembly includes the push rod, the push rod is fixed on the inner wall of the key cap, and a contact avoidance hole is provided on the key base; the fixing plate assembly is provided with a second elastic contact of the first elastic contact in an area corresponding to the key base, and the first elastic contact and the second elastic contact are passed through the contact avoidance hole and abut against each other; the push rod is configured such that when the key cap is pressed, one end of the push rod can be inserted between the first elastic contact and the second elastic contact to disconnect the first elastic contact and the second elastic contact.

9. A scissor-foot keyboard, characterized in that: The invention comprises the key structure according to any one of claims 1 to 8.

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