Ultra-thin keyboard switch balancing stand elastic piece reset structure

Abstract

The utility model discloses an ultra-thin keyboard switch balancing stand elastic sheet reset structure. Comprising a base plate, a first balancing frame rotationally arranged on the base plate, a second balancing frame rotationally arranged on the base plate, an upper cover arranged on the first balancing frame and the second balancing frame, and a reset elastic body arranged between the first balancing frame and the second balancing frame. The first balancing frame and the second balancing frame are mutually crossed and can be pivoted together in an overlapping manner, the reset elastic body is an elastic sheet, the whole elastic sheet is V-shaped, the two ends of the elastic sheet respectively extend upwards in an inclined manner and abut against the upper cover, and the lower part of the reset elastic body is fixed on the base plate. The ultrathin keyboard switch balancing stand spring reset structure provided by the utility model is convenient to install, accurate and smooth in reset and good in reset effect, ensures the pressing hand feeling, can meet the light and thin use requirements, and is beneficial to use.

Description

Technical Field

[0001] The utility model relates to the technical field of key switches, in particular to a reset structure of a shrapnel for a balance bracket of an ultra-thin keyboard switch. Background Art

[0002] A keyboard is an instruction and data input device for operating a device, and also refers to a set of function keys arranged through a system to operate a machine or device. The keyboard is the most commonly used and main input device. Through the keyboard, English letters, numbers, punctuation marks, etc. can be input into a computer, so as to issue commands to the computer, input data, etc.

[0003] Conventionally, mechanical keys using a balance bracket usually use a compression spring to provide the elastic force for resetting. However, the compression spring requires a large stroke to achieve a suitable pressing touch feeling, which makes the overall thickness of the key large and unable to achieve thin and light portability, not meeting the contemporary usage requirements for thin and light notebooks. Content of the Utility Model

[0004] Aiming at the above deficiencies, the purpose of the utility model is to provide a reset structure of a shrapnel for a balance bracket of an ultra-thin keyboard switch, which is convenient to install, has precise and smooth reset, good reset effect, ensures the pressing feel and can meet the thin and light usage requirements, and is beneficial to use.

[0005] The technical solution adopted by the utility model to achieve the above purpose is: a reset structure of a shrapnel for a balance bracket of an ultra-thin keyboard switch, including a substrate, a first balance bracket rotatably arranged on the substrate, a second balance bracket rotatably arranged on the substrate, an upper cover arranged on the first balance bracket and the second balance bracket, and a reset elastic body arranged between the first balance bracket and the second balance bracket. The first balance bracket and the second balance bracket cross each other and are pivotally connected together in a superposable manner. The reset elastic body is a shrapnel, the shrapnel is integrally V-shaped, its two ends respectively extend obliquely upward and are pressed against the upper cover, and the lower part of the reset elastic body is fixed on the substrate.

[0006] As a further improvement of the utility model, a pressing portion bent outward and downward is respectively formed on the tops of the two upward-extending ends of the reset elastic body, and the topmost end of the pressing portion is pressed against the upper cover.

[0007] As a further improvement of the utility model, the pressing portion at one end of the reset elastic body close to the second balance bracket is exactly located above the second balance bracket.

[0008] As a further improvement of the utility model, second upper limit blocks embedded in the second balance bracket are respectively arranged on both sides of one end of the upper cover, and second upper limit holes for the second upper limit blocks to be embedded and rotated are respectively formed on both sides of one end of the second balance bracket.

[0009] As a further improvement of the present utility model, the second balance bracket includes a second plate body rotatably disposed on the substrate, and a second extension plate formed at one end of the second plate body and extending upward. The second upper limit hole is disposed at one end of the second plate body, or on the second extension plate, or at the connection between the second plate body and the second extension plate.

[0010] As a further improvement of the present utility model, the second upper limit block is integrally L-shaped, and its horizontal part is hooked on the second upper limit hole.

[0011] As a further improvement of the present utility model, first upper limit holes for the first balance bracket to be embedded are respectively formed on both sides of the other end of the upper cover, and first upper limit blocks for rotating and being embedded in the first upper limit holes are respectively formed on both sides of one end of the first balance bracket.

[0012] As a further improvement of the present utility model, second lower limit blocks for rotating and being embedded in the substrate are respectively formed on both sides of the other end of the second balance bracket, and a second lower limit hole for the second lower limit block to be embedded and rotate is formed at one end of the substrate.

[0013] As a further improvement of the present utility model, first lower limit blocks for rotating and being embedded in the substrate are respectively formed on both sides of the other end of the first balance bracket, and a first lower limit hole for the first lower limit block to be embedded and rotate is formed at the other end of the substrate.

[0014] The beneficial effects of the present utility model are as follows:

[0015] By setting the reset structure to include a substrate, a first balance bracket rotatably disposed on the substrate, a second balance bracket rotatably disposed on the substrate, an upper cover disposed on the first balance bracket and the second balance bracket, and a reset elastic body disposed between the first balance bracket and the second balance bracket, the first balance bracket and the second balance bracket cross each other and are pivotally connected together in a superposable manner. The reset elastic body is a spring piece, the spring piece is integrally V-shaped, its two ends respectively extend obliquely upward and press against the upper cover, and the lower part of the reset elastic body is fixed on the substrate. When an external force presses down the upper cover, the upper cover presses against the first balance bracket and the second balance bracket, thereby pressing down the first balance bracket and the second balance bracket. At the same time, the upper cover also presses against the reset elastic body, causing the reset elastic body to be pressed and deformed. After the external force is removed from the upper cover, the reset elastic body performs a reset rebound under its own elastic restoring force, thereby lifting the upper cover, and by means of the first balance bracket and the second balance bracket being disposed on the upper cover, the first balance bracket and the second balance bracket are lifted and reset, completing the reset action of the key switch. The whole process is accurate and smooth in reset, and the reset effect is good.

[0016] By setting the reset elastomer as a shrapnel, the shrapnel has good elastic potential energy and can quickly return to its original state after being stressed, thus effectively improving the reset efficiency of the balance bracket, and further improving the reset efficiency of the key switch. The shrapnel is inexpensive, effectively reducing the production cost of this reset structure. The overall height of the shrapnel can be set according to the actual situation, and a process with a low height but large elasticity can be achieved, ensuring a good pressing feel while also meeting the lightweight usage requirements, which is beneficial for use.

[0017] By setting the shrapnel as a V shape, with its two ends respectively pressing against the lower end face of the upper cover, the conduction effect of the pressure transmitted by the upper cover is better, and no matter which part of the upper cover is pressed, the shrapnel can be stressed, thus deforming to achieve reset, improving the reset efficiency of this reset structure, improving the reset accuracy of this reset structure, and ensuring the reset effect of this reset structure.

[0018] The above is an overview of the technical solution of the utility model. The following will further illustrate the present utility model in conjunction with the accompanying drawings and specific embodiments. Brief Description of the Drawings

[0019] Figure 1 Is the overall schematic diagram of the present utility model;

[0020] Figure 2 Is the structural schematic diagram of the present utility model without the upper cover;

[0021] Figure 3 Is the schematic diagram of the shrapnel pressing against the upper cover;

[0022] Figure 4 Is the schematic diagram of the second upper limit block hooked in the second upper limit hole;

[0023] Figure 5 Is the structural schematic diagram of the upper cover;

[0024] Figure 6 Is the structural schematic diagram of the second balance bracket;

[0025] Figure 7 Is the structural schematic diagram of the first balance bracket;

[0026] Figure 8 Is the structural schematic diagram of the substrate;

[0027] Figure 9 Is the side schematic diagram of the present utility model;

[0028] In the figure: 1. Substrate; 11. Second lower limit hole; 12. First lower limit hole; 2. First balance bracket; 21. First upper limit block; 22. First lower limit block; 3. Second balance bracket; 31. Second upper limit hole; 32. Second plate body; 33. Second extension plate; 34. Second lower limit block; 4. Upper cover; 41. Second upper limit block; 42. First upper limit hole; 5. Reset elastic body; 51. Pressing part. Detailed implementation mode

[0029] In order to further elaborate on the technical means and effects adopted by the present invention to achieve the predetermined purpose, the following is a detailed description of the specific implementation mode of the present invention in combination with the attached drawings and preferred embodiments.

[0030] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0031] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, "a plurality" means two or more unless otherwise specifically defined.

[0032] In the present invention, unless otherwise clearly defined and limited, the terms "installation", "connection", "connection", "fixation", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] Please refer to Figures 1 to 9, an embodiment of the present utility model provides a reset structure for the elastic sheet of an ultra-thin keyboard switch balance bracket, which includes a substrate 1, a first balance bracket 2 rotatably arranged on the substrate 1, a second balance bracket 3 rotatably arranged on the substrate 1, an upper cover 4 arranged on the first balance bracket 2 and the second balance bracket 3, and a reset elastic body 5 arranged between the first balance bracket 2 and the second balance bracket 3. The first balance bracket 2 and the second balance bracket 3 cross each other and are pivotally connected together in a superposable manner. The reset elastic body 5 is an elastic sheet, and the elastic sheet is integrally V-shaped, with its two ends respectively extending obliquely upward and pressing against the upper cover 4, and the lower part of the reset elastic body 5 is fixed on the substrate 1.

[0034] When an external force presses down the upper cover 4, the upper cover 4 presses against the first balance bracket 2 and the second balance bracket 3, thereby pressing down the first balance bracket 2 and the second balance bracket 3. At the same time, the upper cover 4 also presses against the reset elastic body 5, causing the reset elastic body 5 to be pressed and deformed. After the external force is removed from the upper cover 4, the reset elastic body 5 rebounds under its own elastic restoring force, thereby lifting the upper cover 4, and through the first balance bracket 2 and the second balance bracket 3 arranged on the upper cover 4, the first balance bracket 2 and the second balance bracket 3 are lifted and reset, completing the reset action of the key switch. The entire process has precise and smooth reset, and the reset effect is good.

[0035] By setting the reset elastic body as an elastic sheet, the elastic sheet has good elastic potential energy and can quickly return to its original state after being stressed, thereby effectively improving the reset efficiency of the balance bracket, and further improving the reset efficiency of the key switch. The cost of the elastic sheet is low, effectively reducing the production cost of this reset structure. The overall height of the elastic sheet can be set according to the actual situation, and a process with a low height but large elasticity can be achieved, ensuring the pressing feel while also meeting the lightweight use requirements, which is beneficial for use.

[0036] By setting the elastic sheet as a V shape, its two ends respectively press against the lower end surface of the upper cover 4, so that the pressure conduction effect of the upper cover 4 is better, and no matter which part of the upper cover 4 is pressed, the elastic sheet can be stressed, thereby deforming and resetting, improving the reset efficiency of this reset structure, improving the reset accuracy of this reset structure, and ensuring the reset effect of this reset structure.

[0037] Regarding the specific manner in which the reset elastic body 5 is fixed to the substrate 1, the lower part of the reset elastic body 5 can be welded to the substrate 1, or it can be a structure integrally formed with the substrate 1, or there are limiting plates on both sides of the substrate 1 to limit the reset elastic body 5, as long as the reset elastic body 5 can be fixed to the substrate 1, so no specific limitation is made in this embodiment.

[0038] Preferably, as Figures 2 to 3As shown, on the top of the two upwardly extending ends of the reset elastomer 5, there are respectively formed a pressing portion 51 that bends outward and downward. The topmost end of the pressing portion 51 presses against the upper cover 4. The bent structure makes the upper end of the reset elastomer 5 relatively rounded, so that the upper cover 4 will not be damaged during the pressing process of the reset elastomer 5, and it is also beneficial to the pressing operation of the reset elastomer, thereby ensuring the service life of this reset structure and improving the reset accuracy of this reset structure.

[0039] Preferably, as Figure 2 shown, the pressing portion 51 at one end of the reset elastomer 5 close to the second balance bracket 3 is exactly above the second balance bracket 3. Thus, when the upper cover 4 presses on the pressing portion 51, the pressing portion 51 can also press on the second balance bracket 3, thereby synchronously pressing the first balance bracket 2 pivotally connected to the second balance bracket 3, and the conduction component in the key switch is turned on.

[0040] Preferably, the pressing portion 51 at one end of the reset elastomer 5 close to the first balance bracket 2 is exactly above the first balance bracket 2. Thus, when the upper cover 4 presses on the pressing portion 51, the pressing portion 51 can also press on the first balance bracket 2, thereby synchronously pressing the second balance bracket 3 pivotally connected to the first balance bracket 2, and the conduction component in the key switch is turned on.

[0041] For the specific way of fixedly installing the upper cover 4, as Figures 4 to 6 shown, on both sides of one end of the upper cover 4, there are respectively provided second upper limit blocks 41 that are embedded in the second balance bracket 3. On both sides of one end of the second balance bracket 3, there are respectively formed second upper limit holes 31 for the second upper limit blocks 41 to be embedded and rotated. The substrate 1 is installed on the circuit board of the keyboard. When an external force presses the upper cover 4, the second upper limit blocks 41 on the upper cover 4 are embedded in the second upper limit holes 31, thereby driving the second balance bracket 3 to move downward. Since the first balance bracket 2 and the second balance bracket 3 are pivotally connected to each other in a crossed and superposable manner, the second balance bracket 3 synchronously drives the first balance bracket 2 to move downward, and presses down the reset elastomer 5 to cause deformation. After achieving the purpose of the key switch moving downward in multiple angles and aspects in a balanced manner, the conduction component in the key switch is turned on to output a signal outward, which is beneficial to the cooperation between various components. When the external force is removed from the upper cover 4, the reset elastomer 5 is reset under its own elastic restoring force. The reset elastomer 5 rebounds to push the upper cover 4 up for reset, so that the conduction between the conduction components is disconnected, waiting for the next use. The whole process is smooth, the structure is simple, which is beneficial to production and use, and the reset is accurate and smooth with a good reset effect.

[0042] For the specific structural setting of the above-mentioned conduction component, the conduction component can be a mechanical elastic sheet conduction, light conduction, magnetic axis conduction, magnetic induction conduction and other conduction structures. These conduction structures are all conventional technical means in this field, so no specific description is made in this embodiment.

[0043] Regarding the specific structural setting of the second upper limit hole 31, as Figures 4 to 6 shown, the second balance bracket 3 includes a second plate body 32 rotatably arranged on the substrate 1, and a second extension plate 33 formed at one end of the second plate body 32 and extending upward. The second upper limit hole 31 is arranged at one end of the second plate body 32 or on the second extension plate 33 or at the connection between the second plate body 32 and the second extension plate 33, and its specific setting can be adjusted according to the actual situation, so no specific limitation is made in this embodiment.

[0044] Regarding the specific structural setting of the second upper limit block 41, as Figures 4 to 6 shown, the second upper limit block 41 is generally L-shaped, and its horizontal part is hooked on the second upper limit hole 31, so that the upper cover 4 can be hooked on the second upper limit hole 31 through the second upper limit block 41 to drive the second balance bracket 3 to press down and rise and reset. The L-shaped structure only requires the horizontal part of the second upper limit block 41 to pass through the second upper limit hole 31 during assembly. Its overall structure is simple, the installation is convenient, which is beneficial to production, the reset is accurate and smooth, and the reset effect is good. The second hook plate and the second lower limit block 34 are arranged on the second plate body 32.

[0045] When an external force presses the upper cover 4, the upper cover 4 moves downward and presses against the second extension plate 33, driving the second extension plate 33 to move downward, thereby driving the second balance bracket 3 to move downward. When the external force is removed from the upper cover 4, the reset elastic body 5 performs elastic reset under its own elastic restoring force. The second upper limit block 41 on the upper cover 4 presses against the upper end surface of the second upper limit hole 31, thereby lifting and resetting the second balance bracket 3, driving the first balance bracket 2 and the second balance bracket 3 to move upward and reset, thereby improving the reset efficiency of this installation structure.

[0046] Regarding the specific manner in which the upper cover 4 is arranged on the first balance bracket 2, as Figures 1 to 5 and Figure 7 and Figure 9 shown, first upper limit holes 42 for the first balance bracket 2 to be embedded are respectively formed on both sides of the other end of the upper cover 4, and first upper limit blocks 21 that rotate by being embedded in the first upper limit holes 42 are respectively formed on both sides of one end of the first balance bracket 2. During assembly, only the first upper limit blocks 21 need to be aligned with the first upper limit holes 42 and embedded. Its overall structure is simple, the installation is convenient, which is beneficial to production.

[0047] When an external force presses on the upper cover 4, the upper cover 4 drives the second balance bracket 3 to press downwards, and the upper cover 4 presses down the first upper limit block 21 through the first upper limit hole 42. At the same time, the first upper limit block 21 rotates on the first upper limit hole 42, so that the upper cover 4 drives the first balance bracket 2 to move downwards normally. The first balance bracket 2 and the second balance bracket 3 cooperate with each other, so that no matter which position of the upper cover 4 the external force presses on, the key switch can perform a uniform downward movement, thereby realizing the conduction of the conduction component in the key switch and completing the signal output. When the external force is removed from the upper cover 4, the reset elastic body 5 resets under its own elastic restoring force. The reset elastic body 5 pulls up the first balance bracket 2 and the second balance bracket 3, and the first upper limit block 21 rotates on the first upper limit hole 42. The cooperation of several components jacks up the upper cover 4 to reset, disconnecting the conduction between the conduction components and waiting for the next use. The whole process of reset is precise and smooth, and the reset effect is good.

[0048] For the specific manner in which the second balance bracket 3 is rotatably arranged on the substrate 1, such as Figures 1 to 4 , Figure 5 and Figure 8 and Figure 9 shown, both sides of the other end of the second balance bracket 3 are respectively formed with second lower limit blocks 34 that are embedded in the substrate 1 for rotation, and one end of the substrate 1 is formed with second lower limit holes 11 for the second lower limit blocks 34 to be embedded and rotated. When assembly is required, only need to align the second lower limit blocks 34 with the second lower limit holes 11 and embed them. Its overall structure is simple, the installation is convenient, which is beneficial to production. The substrate 1 is arranged on the circuit board of the keyboard, so that the second balance bracket 3 is restricted on the substrate 1 to ensure the normal operation of the second balance bracket 3. And the second balance bracket 3 rotates in the second lower limit holes 11 during the process of moving downwards or resetting upwards, so as to ensure the flexibility of the second balance bracket 3. The whole process of reset is precise and smooth, and the reset effect is good.

[0049] For the specific manner in which the first balance bracket 2 is arranged on the substrate 1, such as Figures 1 to 5 and Figure 7 and Figure 9As shown in the figure, on both sides of the other end of the first balance bracket 2, first lower limit blocks 22 that rotate by being embedded in the substrate 1 are respectively formed. At the other end of the substrate 1, a first lower limit hole 12 for the first lower limit blocks 22 to be embedded and rotate is formed. When assembly is required, only by aligning the first lower limit blocks 22 with the first lower limit holes 12 and embedding them can the assembly be completed. Its overall structure is simple, the installation is convenient, which is beneficial to production. The substrate 1 is arranged on the circuit board of the keyboard, so that the first balance bracket 2 is restricted on the substrate 1, ensuring the normal operation of the first balance bracket 2. And during the process of the first balance bracket 2 moving downward or moving upward and resetting, it rotates in the first lower limit holes 12, thus ensuring the flexibility of the first balance bracket 2. The whole reset process is accurate and smooth, and the reset effect is good.

[0050] It should be noted here that the ultra-thin keyboard switch balance bracket elastic sheet reset structure disclosed in the present invention is an improvement on the specific structure, and the specific control method is not the innovation point of the present invention. For the circuit board, keyboard, conduction components and other components involved in the present invention, they can be common standard components or components known to those skilled in the art. Their structures, principles and control methods are all known to those skilled in the art through technical manuals or obtained through conventional experimental methods.

[0051] The above are only the preferred embodiments of the present invention, and do not impose any limitation on the technical scope of the present invention. Therefore, other structures obtained by adopting the same or similar technical features as those of the above embodiments of the present invention are all within the protection scope of the present invention.

Claims

1. An elastic reset structure for an ultra-thin keyboard switch balance bracket, comprising a substrate, a first balance bracket rotatably arranged on the substrate, a second balance bracket rotatably arranged on the substrate, an upper cover arranged on the first balance bracket and the second balance bracket, and a reset elastic body arranged between the first balance bracket and the second balance bracket. The first balance bracket and the second balance bracket cross each other and are pivotally connected together in a superposable manner, and it is characterized in that: The reset elastic body is a shrapnel. The shrapnel is generally V-shaped as a whole, and its two ends respectively extend obliquely upward and press against the upper cover, and the lower part of the reset elastic body is fixed on the substrate.

2. The reset structure of the elastic piece of the ultra-thin keyboard switch balance bracket according to claim 1, wherein: One pressing portion that bends outward and downward is respectively formed on the tops of the two ends of the reset elastic body that extend upward, and the topmost end of the pressing portion presses against the upper cover.

3. The reset structure of the elastic piece of the ultra-thin keyboard switch balance bracket according to claim 2, characterized in that: The pressing portion of the end of the reset elastic body close to the second balance bracket is exactly above the second balance bracket.

4. The reset structure of the shrapnel of the ultra-thin keyboard switch balance bracket according to claim 1, wherein: Two second upper limit blocks that are embedded in the second balance bracket are respectively arranged on both sides of one end of the upper cover, and two second upper limit holes for the second upper limit blocks to be embedded and rotate are respectively formed on both sides of one end of the second balance bracket.

5. The reset structure of the elastic piece of the ultra-thin keyboard switch balance bracket according to claim 4, characterized in that: The second balance bracket includes a second plate body rotatably arranged on the substrate and a second extension plate formed at one end of the second plate body and extending upward, and the second upper limit hole is arranged at one end of the second plate body or on the second extension plate or at the connection between the second plate body and the second extension plate.

6. The reset structure of the elastic piece of the ultra-thin keyboard switch balance bracket according to claim 4, characterized in that: The second upper limit block is generally L-shaped as a whole, and its horizontal part is hooked on the second upper limit hole.

7. The elastic sheet reset structure of the ultra-thin keyboard switch balance bracket according to claim 1, wherein: Two first upper limit holes for the first balance bracket to be embedded are respectively formed on both sides of the other end of the upper cover, and two first upper limit blocks that are embedded in the first upper limit holes and rotate are respectively formed on both sides of one end of the first balance bracket.

8. The snapback structure of the balance frame elastic piece of the ultra-thin keyboard switch according to claim 1, wherein: Two second lower limit blocks that are embedded in the substrate and rotate are respectively formed on both sides of the other end of the second balance bracket, and a second lower limit hole for the second lower limit block to be embedded and rotate is formed at one end of the substrate.

9. The reset structure of the elastic piece of the ultra-thin keyboard switch balance bracket according to claim 1, wherein: Two first lower limit blocks that are embedded in the substrate and rotate are respectively formed on both sides of the other end of the first balance bracket, and a first lower limit hole for the first lower limit block to be embedded and rotate is formed at the other end of the substrate.

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