Keyboard vibration and noise reduction structure

Abstract

The utility model discloses a keyboard vibration and noise reduction structure which comprises a plurality of first noise reduction parts and a plurality of second noise reduction parts, each first noise reduction part is of an O-shaped or U-shaped structure and is detachably and fixedly arranged on one side wall of a key guide plate, and the bottom end and the top end of each first noise reduction part abut against a bottom shell and a face shell respectively. And each second silencing part is detachably and fixedly arranged between the bottom shell and the circuit board. According to the utility model, the edge of the key guide plate is provided with the plurality of first silencing parts, so that the moving speed of the key guide plate can be slowed down and the moving distance can be limited when the key is knocked by external force, and the purposes of reducing key knocking noise and circuit board vibration can be achieved; the second silencing part is arranged between the circuit board and the bottom shell, so that the space below the circuit board can be filled, sound generated when the keys hit the circuit board is absorbed, and vibration of the circuit board is further relieved; the first silencing part is matched with the second silencing part, and the good vibration and noise reduction effect can be achieved.

Description

Technical Field

[0001] This utility model relates to the field of mechanical keyboard technology, and in particular to a keyboard vibration reduction and noise reduction structure. Background Technology

[0002] Keyboards are essential tools for people's daily study and work, and are used very frequently, but the continuous typing action will produce continuous noise.

[0003] In current keyboard designs, to reduce or eliminate noise interference, most keyboards incorporate sound-dampening components between the key guide plate and the circuit board to isolate them, thereby achieving vibration reduction and noise reduction. However, the addition of these components not only increases the manufacturing and assembly costs of the keyboard but may also reduce the tactile feel of the keys. Utility Model Content

[0004] To address the problems existing in the prior art, this utility model provides a keyboard vibration reduction and noise reduction structure, which can slow down the movement speed of the key guide plate and limit its movement distance when the key is struck by external force, thereby reducing key strike noise and circuit board vibration. It can also fill the space under the circuit board, absorb the sound of the key striking the circuit board and further reduce the vibration of the circuit board, thus having a good vibration reduction and noise reduction effect.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] A keyboard vibration damping and noise reduction structure is disclosed. The keyboard includes a bottom shell, a circuit board, a key guide plate, and a top shell. The circuit board is mounted on the bottom shell, the key guide plate is mounted on the circuit board, and one or more keys are mounted on the key guide plate. The top shell is fitted onto the upper end of the bottom shell.

[0007] The bottom shell has a U-shaped structure, and the button guide plate is installed between its two opposite inner walls;

[0008] The vibration reduction and noise reduction structure includes several first noise reduction components and several second noise reduction components. Each first noise reduction component is an O-shaped or U-shaped structure and is detachably fixed on one side wall of the key guide plate. Its bottom end and top end abut against the bottom shell and the top shell, respectively. Each second noise reduction component is detachably fixed between the bottom shell and the circuit board.

[0009] As a further explanation of the above technical solution:

[0010] In the above technical solution, the two opposite ends of the button guide plate are provided with two or more sets of positioning members, and each set of positioning members is matched with a first silencing component.

[0011] In the above technical solution, each group of positioning components includes one or more slots penetrating the upper and lower ends of the button guide plate. The width of each slot is greater than the wall thickness of the first silencing component, and the length of each slot is equal to or less than the width of the first silencing component.

[0012] In the above technical solution, several support plates are provided on the inner walls of the two opposite side walls of the bottom shell at the lower end of each of the first noise-reducing components, and the upper end profile of each support plate extends to the outside of the lower end profile of a first noise-reducing component.

[0013] In the above technical solution, each of the support plates is a hollow frame structure, and a number of reinforcing ribs are formed between its inner walls.

[0014] In the above technical solution, each of the first noise-reducing components is an integral elastic noise-reducing washer, with a through groove in its center that matches the thickness of the edge of the button guide plate.

[0015] In the above technical solution, a limiting plate is detachably fixed on the end of the circuit board facing the bottom shell. The limiting plate is provided with a plurality of clearance grooves, and a second noise-reducing component is installed in each of the plurality of clearance grooves. The thickness of each second noise-reducing component is greater than the thickness of the limiting plate, and its bottom end abuts against the inner wall of the bottom shell.

[0016] In the above technical solution, each of the second sound-absorbing components is sound-absorbing cotton.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows: by installing several first noise-absorbing components on the edge of the key guide plate, the moving speed of the key guide plate can be slowed down and its moving distance can be limited when the key is struck by external force, thereby reducing the noise of key striking and reducing the vibration of the circuit board; by setting a second noise-absorbing component between the circuit board and the bottom shell, the space under the circuit board can be filled, absorbing the sound of the key striking the circuit board and further reducing the vibration of the circuit board; the first noise-absorbing component and the second noise-absorbing component work together to achieve a better vibration reduction and noise reduction effect. Attached Figure Description

[0018] Figure 1 This is a cross-sectional structural diagram of this embodiment (only a portion of the shell is shown);

[0019] Figure 2 This is an exploded structural diagram of this embodiment (the faceplate is not shown);

[0020] Figure 3 yes Figure 2 Enlarged view of section A in the middle;

[0021] Figure 4 This is a schematic diagram of the button guide plate in this embodiment;

[0022] Figure 5 This is a schematic diagram of the structure of the first noise reduction component in this embodiment;

[0023] Figure 6 This is a schematic diagram of the structure of another first noise reduction component in this embodiment.

[0024] In the diagram: 10, bottom shell; 11, support plate; 12, reinforcing rib; 20, circuit board; 30, button guide plate; 31, positioning component; 40, front shell; 50, limiting plate; 1, first silencing component; 2, second silencing component; 3, slot; 4, clearance slot; 5, through slot. Detailed Implementation

[0025] The present invention will now be described in further detail with reference to the accompanying drawings.

[0026] The embodiments described with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application. In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, 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, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting this application. Furthermore, 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 indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "several" or "more than" means two or more, unless otherwise explicitly specified. In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances. In this application, unless otherwise expressly specified and limited, "above" or "below" a second feature can include direct contact between the first and second features, or it can include contact between the first and second features through another feature between them. Moreover, "above," "over," and "on top" of a second feature include the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" of a second feature include the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0027] like Figure 1-2 A keyboard vibration damping and noise reduction structure is disclosed. The keyboard includes a bottom shell 10, a circuit board 20, a key guide plate 30, and a front shell 40. The circuit board 20 is mounted on the bottom shell 10, the key guide plate 30 is mounted on the circuit board 20, and one or more keys are mounted on the key guide plate 30. The front shell 40 is mounted on the upper end of the bottom shell 10.

[0028] The bottom shell 10 has a U-shaped structure, and a button guide plate 30 is installed between its two opposing inner walls;

[0029] The vibration reduction and noise reduction structure includes several first noise reduction components 1 and several second noise reduction components 2. Each first noise reduction component 1 is an O-shaped or U-shaped structure and is detachably fixed on one side wall of the key guide plate 30. Its bottom end and top end abut against the bottom shell 10 and the top shell 40, respectively. Each second noise reduction component 2 is detachably fixed between the bottom shell 10 and the circuit board 20.

[0030] like Figure 2 The circuit board 20 is detachably fixed with a limiting plate 50 at the end facing the bottom shell 10. The limiting plate 50 is provided with several clearance grooves 4. Each clearance groove 4 is equipped with a second noise reduction component 2. The thickness of each second noise reduction component 2 is greater than the thickness of the limiting plate 50 and its bottom end abuts against the inner wall of the bottom shell 10.

[0031] like Figure 3 The bottom shell 10 has several support plates 11 on the inner walls of its two opposite sidewalls at the lower end of each first noise-reducing component 1. The upper end profile of each support plate 11 extends to the outer side of the lower end profile of a first noise-reducing component 1. In this embodiment, each support plate 11 is a hollow frame structure, and several reinforcing ribs 12 are formed between its inner walls.

[0032] Understandably, the hollow support plate 11 can reduce the material cost and weight of the bottom shell 10, and reduce its contact area with the first noise reduction component 1, providing a certain deformation space for the first noise reduction component 1 and extending the service life of the first noise reduction component 1.

[0033] like Figure 4 The button guide plate 30 is provided with two or more sets of positioning members 31 at both opposite ends, and a first silencing component is matched and installed on each set of positioning members 31; each set of positioning members 31 includes one or more slots 3 that penetrate the upper and lower ends of the button guide plate 30, the width of each slot 3 is greater than the wall thickness of a first silencing component 1, and the length of each slot 3 is equal to or less than the width of a first silencing component 1.

[0034] like Figure 5-6 Each of the first noise-absorbing components 1 is an integral elastic noise-absorbing washer with a through groove 5 in the center that matches the thickness of the outline edge of the button guide plate 30, and each of the second noise-absorbing components 2 is sound-absorbing cotton.

[0035] Figure 5 and Figure 6The diagrams show the structural schematics of the first noise-reducing component 1 with either an O-shaped or U-shaped structure in this embodiment. In use, the U-shaped first noise-reducing component 1 is embedded in a slot 3 on the key guide plate 30, or the O-shaped first noise-reducing component is embedded in two adjacent slots 3 on the key guide plate 30. When the key is struck, the key guide plate 30 is pushed towards the circuit board 20. Several first noise-reducing components 1 slow down the movement speed of the key guide plate 30 and limit its movement distance, thereby reducing key strike noise and vibration of the circuit board 20. The second noise-reducing component 2 fills the space below the circuit board 20 and the limiting plate 50, absorbing the sound emitted by the key striking the circuit board 20 and further reducing the vibration of the circuit board 20. The first noise-reducing component 1 and the second noise-reducing component 2 work together to achieve a good vibration reduction and noise reduction effect.

[0036] The above does not limit the technical scope of this utility model. Any modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of this utility model shall still fall within the scope of the technical solution of this utility model.

Claims

1. A keyboard vibration damping and noise reduction structure, the keyboard comprising a bottom shell, a circuit board, a key guide plate, and a top shell, the circuit board being mounted on the bottom shell, the key guide plate being mounted on the circuit board, the key guide plate having one or more keys mounted on it, and the top shell being fitted onto the upper end of the bottom shell; characterized in that, The bottom shell has a U-shaped structure, and the button guide plate is installed between its two opposite inner walls; The vibration reduction and noise reduction structure includes several first noise reduction components and several second noise reduction components. Each first noise reduction component is an O-shaped or U-shaped structure and is detachably fixed on one side wall of the key guide plate. Its bottom end and top end abut against the bottom shell and the top shell, respectively. Each second noise reduction component is detachably fixed between the bottom shell and the circuit board.

2. The keyboard vibration damping and noise reduction structure according to claim 1, characterized in that, The button guide plate has two or more sets of positioning members at its two opposite ends, and each set of positioning members is equipped with one of the first noise-reducing components.

3. The keyboard vibration damping and noise reduction structure according to claim 2, characterized in that, Each of the positioning components includes one or more slots extending through the upper and lower ends of the button guide plate. The width of each slot is greater than the wall thickness of the first silencing component, and the length of each slot is equal to or less than the width of the first silencing component.

4. The keyboard vibration damping and noise reduction structure according to claim 1, characterized in that, On the inner walls of the two opposite sidewalls of the bottom shell, there are several support plates at the lower end of each of the first noise-reducing components, and the upper end profile of each support plate extends to the outside of the lower end profile of the first noise-reducing component.

5. The keyboard vibration damping and noise reduction structure according to claim 4, characterized in that, Each of the support plates is a hollow frame structure, and several reinforcing ribs are formed between its inner walls.

6. A keyboard vibration damping and noise reduction structure according to any one of claims 1-5, characterized in that, Each of the first noise-reducing components is an integral elastic noise-reducing washer with a through groove at its center that matches the thickness of the edge of the button guide plate.

7. The keyboard vibration damping and noise reduction structure according to claim 1, characterized in that, A limiting plate is detachably fixed to the end of the circuit board facing the bottom shell. The limiting plate is provided with several clearance grooves. Each of the clearance grooves is equipped with a second noise-reducing component. The thickness of each second noise-reducing component is greater than the thickness of the limiting plate, and its bottom end abuts against the inner wall of the bottom shell.

8. The keyboard vibration damping and noise reduction structure according to claim 1, characterized in that, Each of the second sound-absorbing components is made of sound-absorbing cotton.

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