Keyboard with improved sounding function

Abstract

The utility model discloses an improved sounding keyboard, which comprises a shell and a keyboard liner, the keyboard liner comprises a PCB (printed circuit board), a plurality of keyboard switches are arranged on the PCB, and the keyboard liner further comprises a sound mixing board arranged below the PCB; the sound mixing plate is provided with a plurality of independent sound cavities; the independent sound cavities are in one-to-one correspondence with the keyboard switches; the independent sound cavities are connected through a connecting rod; the interior of the independent sound cavity is hollow to form a cavity body and at least comprises a sound cavity opening. Vibration generated when the keyboard switch is tapped is amplified through the independent sound cavity, instant feedback of key sound can be enhanced, and the effect of improving the sound production performance of the keyboard is achieved.

Description

Technical Field

[0001] The utility model relates to the field of keyboards, in particular to an improved sound-generating keyboard. Background Art

[0002] In current mechanical keyboards, there are many factors that affect the keyboard sound feedback, such as the filler material, the keyboard installation structure, and the design of the axis itself; among them, the thickness of the positioning plate cannot be changed. Due to the structural limitations of the axis, in terms of material, the positioning plates currently on the market have little room for development.

[0003] PCB thickness is currently a key factor affecting keyboard cladding noise. Due to hardware and user requirements, it's currently difficult to make motherboard PCBs thinner than 1.2mm. Even if this were achieved, the impact wouldn't be significant, and the PCB yield would be compromised, so there's little room for improvement in this area.

[0004] Keyboard casings are generally made of three main materials: metal, plastic, and wood. The material primarily affects the reflectivity and timbre of the sound. Since most keyboard kits tend to fill the cavity, the impact of the casing material is minimal. Filling methods also struggle to reduce aftershocks while also absorbing unwanted noise.

[0005] Optimizing sound performance can also start from cavity sound. In acoustics, the sound cavity can amplify and improve the sound effect (similar to the effect of the cavity in a musical instrument on the sound of the instrument). In the keyboard structure, the current kit can only utilize the cavity of the axis and keycap, and the impact of this part on the sound is relatively less significant, and is limited by the structure and function of the axis and keycap, so there is not much room for improvement. Utility Model Content

[0006] In view of the bottleneck in improving the timbre of current mechanical keyboard structures, the present invention provides a keyboard with improved sound, which can achieve the effect of improving keyboard sound feedback.

[0007] In order to achieve the above-mentioned purpose, the embodiments of the present invention adopt the following technical solutions:

[0008] A keyboard with improved sound production comprises a shell and a keyboard liner, wherein the keyboard liner comprises a PCB board, a plurality of keyboard switches are arranged on the PCB board, and the keyboard liner further comprises a mixing board arranged below the PCB board; the mixing board comprises a plurality of independent sound cavities; the independent sound cavities correspond one-to-one with the keyboard switches; the independent sound cavities are detachably fixed to the mixing board or are integrally formed with the mixing board; the independent sound cavities are hollow inside to form a cavity and include at least one sound cavity opening.

[0009] According to one aspect of the present utility model, a shock-absorbing plate is provided below the mixing sound plate; through holes are provided at positions corresponding to the independent sound cavities on the shock-absorbing plate.

[0010] According to one aspect of the present utility model, the independent sound cavity and the mixing sound plate are integrally formed, and adjacent independent sound cavities are connected by connecting rods.

[0011] According to one aspect of the present utility model, the opening of the sound cavity faces downward below the mixing sound plate.

[0012] According to one aspect of the present utility model, the independent sound cavity is in an inverted conical shape.

[0013] According to one aspect of the present utility model, the independent sound cavity is located directly below the keyboard switch.

[0014] According to one aspect of the present utility model, the upper part of the independent sound cavity is a resonance part; the thickness of the resonance part is not greater than the thickness of the side wall of the independent sound cavity.

[0015] According to one aspect of the present utility model, the shock-absorbing plate is a porous structure.

[0016] Advantages of the implementation of the present utility model:

[0017] By correspondingly arranging an independent sound cavity below the keyboard switch, through vibration conduction, the knocking vibration of the keyboard switch is amplified through the cavity, and it plays a role in improving the sound feedback; a shock-absorbing plate is also provided below the mixing sound plate, and the shock-absorbing plate is a porous structure, which is mainly used to absorb noise (cavity echo, friction and collision between various moving parts) and aftershocks, and can further optimize the sound feedback to obtain a more pure sound feedback; changing the shape and material of the independent sound cavity can obtain rich timbre changes to meet the needs of more users. Description of the Drawings

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required to be used in the embodiments. Obviously, the following described drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0019] Figure 1 It is a three-dimensional schematic diagram of a keyboard with improved sound production according to the present utility model;

[0020] Figure 2 It is a three-dimensional view of the mixing sound plate and the shock-absorbing plate according to the present utility model;

[0021] Figure 3 It is a cross-sectional schematic diagram of the mixing sound plate and the shock-absorbing plate according to the present utility model;

[0022] Figure 4 is Figure 3 a partial enlarged view of the part shown by reference numeral Ⅰ in the figure.

[0023] Legend: 1. Outer shell; 2. Keyboard inner liner; 3. Sound mixing board; 31. Independent sound cavity; 311. Sound cavity opening; 312. Resonating part; 4. Vibration damping board. Specific implementation manner

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0025] As Figure 1 , Figure 2 , Figure 3 and Figure 4 shown, an improved sound - emitting keyboard includes an outer shell 1 and a keyboard inner liner 2. The keyboard inner liner 2 includes a PCB board, and a plurality of keyboard switches are arranged on the PCB board. The keyboard inner liner 2 further includes a sound mixing board 3 arranged below the PCB board; a plurality of independent sound cavities 31 are arranged on the sound mixing board 3; the independent sound cavities 31 correspond to the keyboard switches one by one; the independent sound cavities 31 are detachably fixed on the sound mixing board 3 or are integrally formed with the sound mixing board 3; the inside of the independent sound cavity 31 is hollow to form a cavity and includes at least one sound cavity opening 311.

[0026] In practical applications, a vibration damping board 4 is further arranged below the sound mixing board 3. The vibration damping board 4 has a porous structure and is mainly used to absorb noise (cavity echo, friction and collision between various moving parts) and after - shock, further optimizing the sound feedback.

[0027] In practical applications, the independent sound cavity 31 can be selected as a relatively basic inverted cone shape, which plays a role similar to an amplifying horn. The vibration of the keyboard switch is amplified by the independent sound cavity 31 to strengthen the instant feedback of the key sound, achieving the effect of improving the sound - emitting performance of the keyboard; the material of the sound cavity can be selected as a metal material, which is easy to process, has high strength and can be made as thin as possible.

[0028] Furthermore, the shape and material of the independent sound cavity 31 can also be adjusted according to needs to produce a more rich sound effect, so as to meet the needs of more users (such as using materials such as plastic and composite materials, and using shapes such as hemispherical and ellipsoidal shapes).

[0029] The independent sound cavity 31 is detachably fixed on the mixed sound board 3, facilitating the user to replace the independent sound cavity 31 with different materials and shapes according to their own needs; when the independent sound cavity 31 and the mixed sound board 3 are integrally formed, the adjacent independent sound cavities 31 are connected by connecting rods, which can reduce the weight of the mixed sound board 3 and is also beneficial to the independent sound cavity 31 to conduct the vibration from the keyboard switch when it is struck.

[0030] To ensure that the independent sound cavity 31 can fully play its role, it is located directly below the keyboard switch, and the upper part of the independent sound cavity 31 opposite thereto is the resonance part 312; the thickness of the resonance part 312 is not greater than the thickness of the side wall of the independent sound cavity 31 (theoretically, the thinner this part is, the easier it is to be excited to generate vibration). Therefore, in actual application, the resonance part 312 and even the entire independent sound cavity 31 part should be made thin enough. When the keyboard is struck, the independent sound cavity 31 can play a role in amplifying the vibration and improving the tone quality.

[0031] The sound cavity opening 311 faces downward of the mixed sound board 3, which can take into account both the size and the sound optimization effect; in actual application, a shock-absorbing board 4 is also provided below the mixed sound board 3. The downward-facing sound cavity opening 311 is beneficial for the shock-absorbing board 4 to absorb noise (cavity echo, friction and collision between various moving parts) and aftershocks, which can further optimize the sound feedback and obtain a purer sound feedback.

[0032] Advantages of the implementation of the present utility model:

[0033] By correspondingly arranging an independent sound cavity below the keyboard switch, through vibration conduction, the knocking vibration of the keyboard switch is amplified through the cavity and plays a role in improving the sound feedback; a shock-absorbing board is also provided below the mixed sound board. The shock-absorbing board has a porous structure and is mainly used to absorb noise (cavity echo, friction and collision between various moving parts) and aftershocks, which can further optimize the sound feedback and obtain a purer sound feedback; changing the shape and material of the independent sound cavity can obtain rich tone color changes to meet the needs of more users.

[0034] The above is only the specific implementation manner of the present utility model, but the protection scope of the present utility model is not limited thereto. Any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed by the present utility model should be covered within the protection scope of the present utility model. Therefore, the protection scope of the present utility model should be subject to the protection scope of the claims.

Claims

1. An improved sound-emitting keyboard, comprising a housing and a keyboard inner housing, wherein the keyboard inner housing includes a PCB board, and a plurality of keyboard switches are arranged on the PCB board, characterized in that, The keyboard inner case further includes a sound mixing board disposed below the PCB board; the sound mixing board includes a plurality of independent sound cavities; the independent sound cavities correspond to the keyboard switches one by one; the independent sound cavities are detachably fixed on the sound mixing board or integrally formed with the sound mixing board; the inside of the independent sound cavity is hollow to form a cavity and includes at least one sound cavity opening.

2. The improved sound-emitting keyboard according to claim 1, wherein, A shock-absorbing board is disposed below the sound mixing board; through holes are provided at positions corresponding to the independent sound cavities on the shock-absorbing board.

3. The improved keyboard for sound production according to claim 1, characterized in that, The independent sound cavities are integrally formed with the sound mixing board, and adjacent independent sound cavities are connected by connecting rods.

4. The improved voice - emitting keyboard according to claim 1, wherein, The sound cavity opening faces downward the sound mixing board.

5. The improved sound - generating keyboard according to claim 4, wherein, The independent sound cavity is in an inverted conical shape.

6. The improved sound-generating keyboard according to claim 5, characterized in that, The independent sound cavity is located directly below the keyboard switch.

7. The improved sound-emitting keyboard according to claim 5, wherein, The upper part of the independent sound cavity is a resonance part; the thickness of the resonance part is not greater than the thickness of the side wall of the independent sound cavity.

8. The improved sound-generating keyboard according to claim 2, wherein, The shock-absorbing board is a porous structure.

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