Middle plate noise reduction cushion layer structure for keyboard
By designing a noise-reducing pad structure with silicone pads and honeycomb cavities in the keyboard's middle plate, combined with a deflection rod and a buffer spring, the problem of bottoming-out noise in mechanical keyboard keys has been solved, achieving better shock absorption and noise reduction effects.
Patent Information
- Application Number
- CN202520463265.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-17
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-03-17
AI Technical Summary
The noise problem generated when the keys bottom out in existing mechanical keyboards has not been effectively solved, especially the lateral vibration noise when the keycaps deflect.
The keyboard adopts a noise-reducing pad structure in the middle plate, including silicone pads under the switches and honeycomb shock-absorbing cavities. Combined with deflection rods and buffer springs, the deflection force drives the deflection rods to rotate and absorb impact force through lateral vibration, limiting the vibration transmission path. When the keycaps are pressed, the polyurethane damping coating suppresses mechanical vibration noise.
It effectively absorbs the vertical and lateral impact force when the keycaps are pressed, reducing the noise of the mechanical keyboard and improving the stability and quietness of key operation.
Smart Images
Figure CN223927272U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of keyboards, and more particularly to a noise reduction pad structure for a keyboard midplate. Background Technology
[0002] Mechanical keyboards are widely used due to their superior tactile feedback, but the noise generated when the keys bottom out has remained a persistent problem. Existing noise reduction technologies mainly rely on a single Poron material switch pad or switch lubrication, which has the following drawbacks and limited noise reduction effect: traditional Poron material switch pads can only absorb part of the vertical impact force and cannot offset the lateral vibration noise when the keycaps deflect. Based on this, we propose a noise reduction pad structure for the middle plate of a keyboard. Utility Model Content
[0003] To address the technical problem of limited noise reduction effect of existing keyboard switch pads, this utility model provides a noise reduction pad structure for the middle plate of a keyboard.
[0004] This utility model is achieved by the following technical solution: a keyboard middle plate noise reduction pad structure, including the keyboard as a whole, the keyboard key surface, a shaft pad connected below the keyboard key surface, and a noise reduction mechanism connected between the shaft pads.
[0005] The noise reduction mechanism includes a deflection shaft, which extends outward to connect to a deflection rod. There are two sets of deflection rods, which are V-shaped. A fixing block is connected to the top of the deflection rod, and a through-shaft block is connected to the outside of the fixing block. A buffer spring is connected between the two sets of through-shaft blocks.
[0006] When pressed, the keyboard key surface drives the upper pad in the switch pad to press down. The deflection force of the upper pad drives the deflection rod to rotate around the deflection axis. The buffer spring vibrates laterally, absorbing the remaining impact force and limiting the vibration transmission path.
[0007] As a further optimization of this utility model, the switch pad is placed between the keyboard key surface and the keyboard board. The switch pad consists of an upper pad and a lower pad, which are connected by a noise reduction mechanism.
[0008] As a further optimization of this utility model, the lower pad is made of silicone, and a honeycomb-shaped shock-absorbing cavity is provided between the upper and lower pads; the honeycomb cavity between the upper and lower pads absorbs part of the vertical impact energy through compression deformation.
[0009] As a further optimization of this utility model, the deflection axis at the hinge of the two sets of deflection rods is provided with a polyurethane damping coating to suppress mechanical vibration noise.
[0010] As a further optimization of this utility model, the frame edges of the upper and lower pads are made of hard plastic sheet material, and the upper and lower pads are connected by a telescopic reset rod, which consists of two sets of rods; when the upper pad is pressed down, the telescopic reset rod is also compressed and reset simultaneously to ensure the stability of the upper and lower pads when pressed down.
[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0012] 1. This utility model uses a silicone pad for the lower shaft pad and a honeycomb-shaped shock-absorbing cavity between the upper and lower pads; the honeycomb cavity between the upper and lower pads absorbs part of the vertical impact energy through compression deformation, thereby achieving buffering and noise reduction.
[0013] 2. This utility model uses the deflection force of the upper pad to drive the deflection rod to rotate around the deflection axis, and the buffer spring to vibrate laterally, absorbing the remaining impact force and limiting the vibration transmission path, thus achieving better shock absorption and buffering. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall keyboard assembly and disassembly structure of this utility model;
[0015] Figure 2 This is a schematic diagram of the shaft under-shield connection structure of this utility model;
[0016] Figure 3 This utility model Figure 2 Enlarged schematic diagram of the structure of region A in the middle;
[0017] Figure 4 This is a schematic diagram of the telescopic reset rod connection structure of this utility model.
[0018] Explanation of key symbols:
[0019] 1. Keyboard as a whole; 2. Keyboard key surface; 3. Switch lower pad; 31. Upper pad; 32. Lower pad; 33. Telescopic reset lever; 4. Keyboard board; 5. Noise reduction mechanism; 51. Deflection switch; 52. Deflection rod; 54. Fixing block; 55. Through-spindle block; 56. Buffer spring. Detailed Implementation
[0020] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.
[0021] Example 1:
[0022] Please combine Figures 1-4This embodiment proposes a keyboard midplate noise reduction pad structure, including the keyboard body 1, the keyboard key surface 2, the key surface 2 is connected to the bottom of the key pad 3, and the key pad 3 is connected to the noise reduction mechanism 5.
[0023] It should be noted that the switch pad 3 is placed between the keyboard key surface 2 and the keyboard board 4. The switch pad 3 consists of an upper pad 31 and a lower pad 32, which are connected by a noise reduction mechanism 5.
[0024] The noise reduction mechanism 5 includes a deflection shaft 51, which extends outward and is connected to a deflection rod 52. There are two sets of deflection rods 52, which are V-shaped. A fixing block 54 is connected to the top of the deflection rod 52, and a through shaft block 55 is connected to the outside of the fixing block 54. A buffer spring 56 is connected between the two sets of through shaft blocks 55.
[0025] More specifically, when pressed, the keyboard key surface 2 drives the upper pad 31 in the lower pad 3 of the axis to press down. The deflection force of the upper pad 31 drives the deflection rod 52 to rotate around the deflection axis 51, and the buffer spring 56 vibrates laterally to absorb the remaining impact force and limit the vibration transmission path.
[0026] It should be noted that the deflection shaft 51 at the hinge of the two sets of deflection rods 52 is provided with a polyurethane damping coating to suppress mechanical vibration noise.
[0027] Furthermore, the frame edges of the upper pad 31 and the lower pad 32 are made of hard plastic sheet material. The upper pad 31 and the lower pad 32 are connected by a telescopic reset rod 33. The telescopic reset rod 33 is composed of two sets of rods. When the upper pad 31 is pressed down, the telescopic reset rod 33 is also compressed and reset simultaneously to ensure the stability of the upper pad 31 and the lower pad 32 when they are pressed down.
[0028] It should be noted that the lower shaft pad 3 is made of silicone, and a honeycomb-shaped shock-absorbing cavity is provided between the upper pad 31 and the lower pad 32; the honeycomb cavity between the upper pad 31 and the lower pad 32 absorbs part of the vertical impact energy through compression deformation.
[0029] Specific implementation steps of this utility model:
[0030] When the keycaps on the keyboard key surface 2 are pressed down, the impact force is transmitted through the keyboard key surface 2 to the switch pad 3;
[0031] Vertical vibration absorption: The honeycomb cavities of the upper pad 31 and the lower pad 32 absorb part of the vertical impact energy through compression deformation;
[0032] Lateral vibration dispersion: When pressed, the keyboard key surface 2 drives the upper pad 31 in the lower pad 3 of the axis to press down. The upper pad 31 and the lower pad 32 are connected by a telescopic reset rod 33. When the upper pad 31 is pressed down, the telescopic reset rod 33 is also compressed and reset simultaneously to ensure the stability of the upper pad 31 and the lower pad 32 when they are pressed down. The deflection force of the upper pad 31 drives the deflection rod 52 to rotate around the deflection axis 51. The buffer spring 56 vibrates laterally to absorb the remaining impact force and limit the vibration transmission path.
[0033] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.
Claims
1. A noise-reducing pad structure for a keyboard midplate, comprising an integral keyboard (1), characterized in that, Keyboard key surface (2), with a shaft pad (3) connected below the keyboard key surface (2), and a noise reduction mechanism (5) connected between the shaft pads (3); The noise reduction mechanism (5) includes a deflection shaft (51), which extends outward and is connected to a deflection rod (52). There are two sets of deflection rods (52), which are V-shaped. A fixing block (54) is connected to the top of the deflection rod (52), and a through shaft block (55) is connected to the outside of the fixing block (54). A buffer spring (56) is connected between the two sets of through shaft blocks (55).
2. The keyboard mid-plate noise reduction pad structure as described in claim 1, characterized in that, The shaft pad (3) is divided into an upper pad (31) and a lower pad (32), and the upper pad (31) and the lower pad (32) are connected by a noise reduction mechanism (5).
3. The keyboard mid-plate noise reduction pad structure as described in claim 1, characterized in that, The under-axis pad (3) is placed between the keyboard key surface (2) and the keyboard board (4).
4. The keyboard mid-plate noise reduction pad structure as described in claim 2, characterized in that, The lower shaft pad (3) is made of silicone pad material, and a honeycomb-shaped shock-absorbing cavity is provided between the upper pad (31) and the lower pad (32).
5. The keyboard mid-plate noise reduction pad structure as described in claim 1, characterized in that, The deflection axis (51) at the hinge of the two sets of deflection rods (52) is provided with a polyurethane damping coating to suppress mechanical vibration noise.
6. The keyboard mid-plate noise reduction pad structure as described in claim 2, characterized in that, The frame edges of the upper pad (31) and the lower pad (32) are made of hard plastic sheet material. The upper pad (31) and the lower pad (32) are connected by a telescopic reset rod (33), which consists of two sets of rods.