Keyboard positioning disc structure

Abstract

A keyboard positioning disc structure comprises a bottom shell, an upper shell fixedly installed at the top end of the bottom shell, a positioning disc arranged between the bottom shell and the upper shell, and a plurality of keys installed through the positioning disc and exposed out of the upper shell. A plurality of grooves are formed in the edge of the positioning disc at intervals in the circumferential direction, and an elastic piece is arranged in each groove; the elastic piece comprises a second arc-shaped part located in the middle and protruding downwards and a pair of first arc-shaped parts symmetrically connected to the two ends of the second arc-shaped part, the first arc-shaped parts protrude upwards, the first arc-shaped parts and the second arc-shaped part form a continuous curved surface structure, and the lowest point of the second arc-shaped part is located below the positioning disc. And on the basis of the scientifically designed curvature radius and structure of the elastic sheet, linear and comfortable feedback is given to the key, a user can practically feel clear and stable hand feeling when typing, and the input efficiency and comfort are remarkably improved.

Description

Technical Field

[0001] This utility model relates to the field of keyboard technology, specifically a keyboard positioning disk structure. Background Technology

[0002] In today's digital office and entertainment environment, the keyboard, as a key input device for human-computer interaction, directly affects the user's operating experience and work efficiency. As users' demands for keyboard performance continue to rise, the limitations of traditional keyboard layouts are becoming increasingly apparent.

[0003] From an office perspective, the frequent and prolonged text input demands users place high demands on the stability and comfort of key feel. Traditional keyboards, due to design flaws in their elastic components, often suffer from inconsistent key feedback. For example, during rapid, continuous keystrokes, some keys may exhibit feedback that is too light or too heavy, leading to frequent errors and requiring repeated checking and corrections, significantly reducing work efficiency. Furthermore, with prolonged use, the key feel can deteriorate, with previously clear feedback becoming blurred, further exacerbating user fatigue.

[0004] In gaming and other entertainment scenarios, players have extremely high demands for keyboard responsiveness and key stability. Traditional keyboard layouts suffer from significant elasticity imbalances when dealing with high-speed, complex key presses. For example, in intense esports games, players need to quickly and accurately press multiple keys to execute combos. However, traditional layouts may experience delayed response or accidental triggering of some keys due to differences in key elasticity, causing players to miss crucial opportunities and severely impacting their gaming experience.

[0005] From a durability perspective, the drawbacks of traditional keyboard layouts become increasingly apparent as keyboards are used over time. Frequent key presses subject elastic components to significant stress over extended periods, leading to wear and deformation. This is especially true in densely populated key areas, where wear is more severe due to higher usage frequency, resulting in key jamming, key failure to rebound, and other malfunctions. This significantly shortens the keyboard's lifespan and increases replacement costs for users. Utility Model Content

[0006] In view of the above situation and to overcome the defects of the prior art, this utility model provides a keyboard positioning disk structure, which effectively solves the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: This utility model includes:

[0008] A bottom shell, an upper shell fixedly installed on the top of the bottom shell, a positioning plate disposed between the bottom shell and the upper shell, and multiple buttons installed through the positioning plate and exposed from the upper shell;

[0009] The positioning disk has several grooves spaced circumferentially along its edge, and each groove contains an elastic sheet.

[0010] The elastic sheet includes a second arc-shaped portion that protrudes downward in the middle and a pair of first arc-shaped portions that are symmetrically connected to both ends of the second arc-shaped portion. The first arc-shaped portions protrude upward and form a continuous curved surface structure with the second arc-shaped portion, and the lowest point of the second arc-shaped portion is located below the positioning disk.

[0011] Preferably, the elastic sheet and the positioning disk are integrally formed using a polymer material through injection molding.

[0012] Preferably, the radius of curvature of the first arc-shaped portion is smaller than the radius of curvature of the second arc-shaped portion, and the ratio of their radii of curvature is 1:1.5-1:3.

[0013] Preferably, in its natural state, the lowest point of the second arcuate portion of the elastic sheet maintains a pre-compression gap of 0.1-0.5 mm with the inner surface of the bottom shell.

[0014] Preferably, a stress dispersion groove is provided at the connection between the first arc-shaped portion and the second arc-shaped portion, and the depth of the stress dispersion groove is 10-20% of the thickness of the elastic sheet.

[0015] Preferably, the surface of the elastic sheet is provided with a nano-scale oleophobic coating.

[0016] Beneficial effects: Superior key feel: Based on the scientifically designed elastic plate curvature radius and structure, the keys provide linear and comfortable feedback, allowing users to truly feel a clear and stable typing experience, significantly improving input efficiency and comfort.

[0017] High stability and reliability: The elastic sheet and positioning plate are integrally molded, and the stress dispersion groove design greatly enhances the structural stability and durability, effectively reducing the risk of damage caused by frequent key operation and extending the service life of the keyboard.

[0018] Easy to clean and maintain: The application of a nano-level oleophobic coating makes the surface of the elastic sheet less prone to grease and dirt. Simple daily wiping can keep it clean and reduce keyboard maintenance costs.

[0019] Uniform feel and modular advantages: The central support on the bottom cover ensures a uniform operating feel, avoiding localized differences in feel. The modular design enhances the synergy between components, improves overall performance, and facilitates future maintenance and replacement. Attached Figure Description

[0020] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0021] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the exploded structure of this utility model;

[0023] Figure 3 This is a utility model Figure 2 A schematic diagram of the structure of A in the middle;

[0024] The following are the labels in the diagram: 1. Bottom shell; 2. Top shell; 3. Positioning plate; 31. Groove; 32. Elastic sheet; 321. First arc-shaped part; 322. Second arc-shaped part; 4. Button. Detailed Implementation

[0025] The following is in conjunction with the appendix Figure 1-3 The specific embodiments of this utility model will be described in further detail.

[0026] Example 1, by Figure 1-3 This utility model provides a keyboard positioning disk structure, including: a bottom shell 1, an upper shell 2, a positioning disk 3, keys 4, a groove 31, an elastic sheet 32, a first arc-shaped portion 321, and a second arc-shaped portion 322.

[0027] The bottom shell 1, the upper shell 2 fixedly installed on the top of the bottom shell 1, the positioning plate 3 disposed between the bottom shell 1 and the upper shell 2, and a plurality of buttons 4 installed through the positioning plate 3 and exposed from the upper shell 2;

[0028] The positioning disk 3 has a plurality of grooves 31 spaced around its edge in the circumferential direction, and each groove 31 is provided with an elastic sheet 32.

[0029] The elastic sheet 32 ​​includes a second arc-shaped portion 322 that protrudes downward in the middle and a pair of first arc-shaped portions 321 that are symmetrically connected to both ends of the second arc-shaped portion 322. The first arc-shaped portions 321 protrude upward and form a continuous curved surface structure with the second arc-shaped portion 322, and the lowest point of the second arc-shaped portion 322 is located below the positioning disk 3.

[0030] Overall Structure: The entire keyboard positioning structure consists of a bottom shell 1, an upper shell 2 securely mounted on top of the bottom shell 1, a positioning plate 3 sandwiched between the bottom shell 1 and the upper shell 2, and numerous keys 4 mounted via the positioning plate 3 and protruding from the upper shell 2. The bottom shell 1 provides the basic support, and the upper shell 2 works together to build the external frame of the keyboard. The positioning plate 3 serves as the key hub connecting the keys 4 to the frame.

[0031] Positioning disc 3 and elastic sheet 32: The positioning disc 3 has several grooves 31 spaced circumferentially along its edge, and each groove 31 is fitted with an elastic sheet 32. The elastic sheet 32 ​​is the core of the structure, having a second arc-shaped portion 322 that protrudes downward in the middle, and a pair of first arc-shaped portions 321 that symmetrically connect to the two ends of the second arc-shaped portion 322 and protrude upward. Together, they form a continuous curved surface structure, and the lowest point of the second arc-shaped portion 322 is located below the positioning disc 3.

[0032] Materials and Molding Process: The elastic sheet 32 ​​and the positioning plate 3 are made of polymer material and integrally molded using an injection molding process. This process ensures a tight connection between the elastic sheet and the positioning plate, greatly enhancing the structural stability and reliability. The excellent elasticity and durability of the polymer material itself also meet the needs of long-term, high-frequency use of the keyboard.

[0033] Curvature radius design: The radius of curvature of the first arc portion 321 is smaller than that of the second arc portion 322, and the ratio of their radii of curvature is between 1:1.5 and 1:3. This design makes the elastic plate feedback more reasonable during button operation. In the initial stage of button pressing, the first arc portion 321 deforms first, providing initial resistance; as the pressure deepens, the second arc portion 322 gradually participates in deformation, continuously increasing the resistance, providing the user with linear and comfortable button feedback.

[0034] Pre-compression gap: When the elastic sheet 32 ​​is in its natural state, a pre-compression gap of 0.1-0.5mm is reserved between the lowest point of the second arc-shaped part 322 and the inner surface of the bottom shell 1. This gap maintains the stability of the elastic sheet when it is not under force, and also provides sufficient space for the deformation of the elastic sheet 32 ​​when the button is pressed down, ensuring the elastic support effect of the button 4.

[0035] Stress dispersion groove: A stress dispersion groove is specially provided at the connection between the first arc-shaped part 321 and the second arc-shaped part 322. The groove depth is 10-20% of the thickness of the elastic sheet 32. Since the force is concentrated at this point when the button is operated, the stress dispersion groove can effectively disperse the stress, prevent the elastic sheet from breaking due to long-term stress accumulation, and significantly extend the service life of the elastic sheet.

[0036] Oleophobic coating: The surface of the elastic sheet 32 ​​is coated with a nano-level oleophobic coating, which can effectively reduce the oil and stains left by fingers during operation, making it easier to clean the button surface, while improving the smoothness of button operation and further optimizing the user experience.

[0037] Overall Support and Modularization: This innovative structure adds a support in the middle of the bottom shell 1, overcoming the shortcomings of traditional structures where the middle is suspended and the feel is uneven, effectively ensuring the uniformity of the keyboard's operation feel. Furthermore, the middle plate is constructed as a whole, forming a modular concept. Specifically, the keycaps, the main body of the middle plate, and the main middle plate are tightly integrated, with an inherent elastic structure between the middle plate and the bottom plate, achieving efficient collaboration among the components and significantly improving structural stability and performance.

[0038] Working principle: When the user presses button 4, the pressure is immediately transmitted to the elastic plate 32 at the corresponding position on the positioning plate 3. The first arc-shaped part 321 deforms first under pressure. As the button continues to be pressed down, the second arc-shaped part 322 also begins to deform, and the entire elastic plate bends downward. The lowest point of the second arc-shaped part 322 gradually approaches the inner surface of the bottom shell 1, but due to the pre-compression gap, it does not directly touch the bottom shell 1. During this process, the deformation of the elastic plate 32 generates an upward reaction force, giving the user clear button feedback. When the user releases the button, the elastic plate 32 returns to its original position due to its elasticity. The stress dispersion groove stabilizes and disperses the stress at the connection point during the deformation of the elastic plate, ensuring the normal operation of the elastic plate. The oleophobic coating keeps the surface of the elastic plate clean and smooth throughout the process, without affecting the smoothness of button operation. The middle support of the bottom cover and the modular structure ensure that the entire keyboard is evenly stressed and has a consistent feel during the key press.

[0039] Beneficial effects: Superior key feel: Based on the scientifically designed elastic sheet with a 32-degree curvature radius and structure, the keys provide linear and comfortable feedback, allowing users to truly feel a clear and stable typing experience, significantly improving input efficiency and comfort.

[0040] High stability and reliability: The elastic sheet 32 ​​and the positioning plate 3 are integrally molded and combined with the stress dispersion groove design, which greatly enhances the structural stability and durability, effectively reduces the risk of damage caused by frequent key operation, and extends the service life of the keyboard.

[0041] Easy to clean and maintain: The application of a nano-level oleophobic coating makes the surface of the elastic sheet less prone to grease and dirt. Simple daily wiping can keep it clean and reduce keyboard maintenance costs.

[0042] Uniform feel and modular advantages: The central support on the bottom cover ensures a uniform operating feel, avoiding localized differences in feel. The modular design enhances the synergy between components, improves overall performance, and facilitates future maintenance and replacement.

[0043] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A keyboard positioning disk structure, characterized in that, include: The bottom shell (1), the upper shell (2) fixedly installed on the top of the bottom shell (1), the positioning plate (3) disposed between the bottom shell (1) and the upper shell (2), and a plurality of buttons (4) installed through the positioning plate (3) and exposed from the upper shell (2); The positioning disk (3) has several grooves (31) spaced around its edge in the circumferential direction, and each groove (31) contains an elastic sheet (32). The elastic sheet (32) includes a second arc-shaped portion (322) that protrudes downward in the middle and a pair of first arc-shaped portions (321) symmetrically connected at both ends of the second arc-shaped portion (322). The first arc-shaped portions (321) protrude upward and form a continuous curved surface structure with the second arc-shaped portion (322), and the lowest point of the second arc-shaped portion (322) is located below the positioning disk (3).

2. A keyboard tray structure as defined in claim 1, wherein: The elastic sheet (32) and the positioning disk (3) are integrally formed by injection molding using polymer materials.

3. The keyboard positioning disk structure according to claim 2, characterized in that: The radius of curvature of the first arc-shaped part (321) is smaller than that of the second arc-shaped part (322), and the ratio of their radii of curvature is 1:1.5-1:

3.

4. A keyboard tray structure as defined in claim 3, wherein: In its natural state, the lowest point of the second arc-shaped portion (322) of the elastic sheet (32) maintains a pre-compression gap of 0.1-0.5 mm with the inner surface of the bottom shell (1).

5. A keyboard tray structure as recited in claim 4, wherein: A stress dispersion groove is provided at the connection between the first arc-shaped part (321) and the second arc-shaped part (322), and the depth of the stress dispersion groove is 10-20% of the thickness of the elastic sheet (32).

6. A keyboard tray structure as recited in claim 5, wherein: The surface of the elastic sheet (32) is provided with a nano-level oleophobic coating.

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