Setting method of notebook keyboard
By optimizing the stacked structure of Rubber Dome, support layer and lower membrane material of the notebook keyboard, the problems of cumbersome structure and poor exhaust are solved, and the high response speed and durability of the keys are achieved to meet the needs of lightweight and lightweight.
Patent Information
- Application Number
- CN202510291095.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-12
- Publication Date
- 2025-08-08
AI Technical Summary
The ‘sandwich structure’ of traditional laptop keyboards is difficult to meet the needs of lightweight and high integration due to the large number of layers, cumbersome manufacturing processes and poor exhaust.
Using a stacked structure of Rubber Dome, support layer and lower membrane material, a bowl-shaped elastomer conductive layer, key contacts and air escape holes are set up to form a continuous gas channel, optimize the layout of conductive contacts, and simplify the manufacturing process.
While reducing thickness, it improves button response speed and durability, simplifies production processes, improves yield, reserves functional expansion space, and reduces costs.
Smart Images

Figure CN120447682A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the field of notebook structure design, and in particular to a method for setting a notebook keyboard. Background Art
[0002] In the prior art, traditional notebook keyboards use a multi-layer stacking method known as a "sandwich structure." A typical approach involves sandwiching multiple functional layers, such as conductive circuits and insulating layers, between two upper and lower membrane materials, and then using mechanical components such as Rubber Dome or scissor feet to trigger the keys. However, as laptop computers continue to develop towards thinner and lighter materials with higher integration, the "sandwich structure" of traditional notebook keyboards has problems such as many layers (usually including upper / lower membrane materials, insulating layers, and conductive circuit layers), cumbersome manufacturing processes, and poor air ventilation, which results in a reduced key feel. As devices become thinner and lighter, existing structures face bottlenecks in terms of process cost, yield rate, and functional scalability. Therefore, a new notebook keyboard structure is currently needed to solve the above problems. Summary of the Invention
[0003] The present application provides a method for setting up a laptop keyboard, which solves the problems of the traditional laptop keyboard's "sandwich structure" having many layers (usually including upper / lower film materials, insulating interlayers and conductive circuit layers, etc.), complicated manufacturing process and poor air ventilation resulting in a decrease in key feel.
[0004] In order to solve the above problems, the present application provides a method for setting a laptop keyboard, comprising: stacking a Rubber Dome, a support layer, and a lower membrane material in order from top to bottom inside the laptop keyboard; The Rubber Dome is set to a bowl-shaped elastic structure, and a Rubber Dome conductive layer is set at the bottom of the bowl of the bowl-shaped elastic structure; X-axis key contacts and Y-axis key contacts are set on the surface of the lower film material; and multiple lower film material vent holes are set on the surface of the lower film material; A plurality of support layer air escape holes and a support layer key trigger window are provided on the support layer, and the position of the support layer key trigger window is set to correspond to the position of the X-axis key contact and the Y-axis key contact provided on the surface of the lower film material, so that the support layer key trigger window covers the upper part of the X-axis key contact and the Y-axis key contact; the position of each support layer air escape hole is set to correspond to the position of the corresponding air escape hole of the lower film material; Set the position of the Rubber Dome conductive layer to correspond to the positions of the X-axis key contacts and Y-axis key contacts set on the surface of the lower film material. Ensure that when the Rubber Dome is pressed, the Rubber Dome conductive layer is pressed down and connected to the X-axis key contacts and Y-axis key contacts to form a key trigger scanning circuit.
[0005] Furthermore, the above method may also include: setting a substrate at the bottom of the lower film material, and setting a plurality of substrate escape holes corresponding to the escape holes of the lower film material on the substrate, the shape and size of the support layer escape holes, the lower film material escape holes and the substrate escape holes are the same, and the positions of the support layer escape holes, the lower film material escape holes and the substrate escape holes overlap to form a continuous gas channel.
[0006] Furthermore, the above method may also include: setting an X-axis conductive circuit and a Y-axis conductive circuit corresponding to the X-axis key contact and the Y-axis key contact on the surface of the lower film material, and connecting the X-axis conductive circuit and the Y-axis conductive circuit to the external keyboard scanning circuit via the X-axis conductive circuit; wherein, the X-axis key contact is set to be electrically connected to the external keyboard scanning circuit through the X-axis circuit, and the Y-axis key contact is set to be electrically connected to the external keyboard scanning circuit through the Y-axis circuit, and the X-axis contact and the Y-axis contact are set to be adjacent and non-overlapping structures.
[0007] Furthermore, the above method may also include: setting the area of the window for triggering the window opening by the support layer button to be smaller than the area of the bowl mouth of the Rubber Dome, and larger than the area of the distribution area of the X-axis button contact and the Y-axis button contact.
[0008] Furthermore, the above method may also include: when the Rubber Dome is inverted on the supporting layer and the supporting layer button triggers the window to open, the bowl edge of the Rubber Dome covers multiple supporting layer air escape holes and the supporting layer button triggers the window to open, the bowl edge of the Rubber Dome is bonded to the supporting layer, and the supporting layer is bonded to the lower film material of the bonding substrate to form a keyboard stacked structure.
[0009] Furthermore, the above method may also include: arranging the substrate to be made of metal or composite material, and the substrate provides support and heat dissipation for the notebook keyboard.
[0010] Furthermore, the above method may also include: setting the material of the Rubber Dome to silicone or nitrile rubber, and fixing the conductive layer to the bottom of the Rubber Dome by printing, spraying, deposition, evaporation, sputtering, chemical vapor deposition, physical vapor deposition, hot melting, hot pressing, hot melting and hot pressing, or hot melting and hot pressing and hot curing.
[0011] Furthermore, the above method may also include: the X-axis key contacts, Y-axis key contacts, X-axis circuits and Y-axis circuits are made of conductive materials and are fixed on the lower film material by printing, spraying, deposition, evaporation, sputtering, chemical vapor deposition, physical vapor deposition, hot melting, hot pressing, hot melting and hot pressing or hot melting and hot pressing and hot curing.
[0012] Through the above scheme, a simplified structural scheme of a notebook keyboard of the present application is applied, and by optimizing the interlayer air escape channel and the layout of the conductive contacts, the key response speed and durability are improved while reducing the thickness. By simplifying the structure, the sensitivity and durability of the keys are improved while minimizing the overall thickness of the keyboard; the coordinated layout of the Rubber Dome, the single-layer film material, and the substrate is not only conducive to mass production, but also reserves space for the subsequent expansion of more functional modules (such as backlights and sensors, etc.), achieving the compatibility of high integration and flexibility; the cost is reduced and the product yield is improved. By simplifying the structure and process, the notebook keyboard of the present application significantly improves the reliability and functionality of the keyboard module while reducing production costs, and has broad market prospects. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings: Figure 1 Shown is a flow chart of the method for setting up the notebook keyboard of the present application; Figure 2 A schematic diagram of the stacked structure of a notebook keyboard; Figure 3 A schematic cross-sectional view of a stacked structure of a notebook keyboard; Figure 4 Schematic diagram of the support layer structure; Figure 5 Schematic diagram of the lower membrane material structure; Figure 6 Schematic diagram of the substrate structure. DETAILED DESCRIPTION
[0014] To make the purpose, technical solutions, and advantages of this application more clear, the technical solutions of this application will be clearly and completely described below in conjunction with the specific embodiments of this application and the corresponding drawings. Obviously, the embodiments described are only part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.
[0015] The following describes in detail the technical solutions provided by various embodiments of the present application in conjunction with the accompanying drawings.
[0016] The main concept of this application is to sequentially arrange a rubber dome, a support layer, a lower membrane material, and a base plate within the keyboard to create a laminated structure that combines stable support with efficient heat dissipation and exhaust. The rubber dome utilizes a bowl-shaped elastomer design, with air escape holes in the support layer, the lower membrane material, and the base plate, forming a complete air flow channel, effectively ensuring that the keys maintain a sensitive rebound and a comfortable tactile feel even with frequent key presses.
[0017] Among them, in this stacked structure, X-axis and Y-axis key contacts are set on the surface of the lower film material, and are connected to the external keyboard scanning circuit through a conductive circuit. The Rubber Dome conductive layer at the bottom of the Rubber Dome bowl is opposite to the key contacts set on the surface of the lower film material. When the Rubber Dome is pressed, the Rubber Dome conductive layer is pressed down and connects the X-axis and Y-axis key contacts, forming a key trigger scanning circuit. After releasing the key, the Rubber Dome is able to form a complete gas flow channel through the set support layer escape holes, the lower film material escape holes and the substrate escape holes. After the air is inhaled and rebounds quickly, the contact circuit is automatically disconnected, thereby completing a complete key scanning action.
[0018] The working principle of this application is to achieve smooth air discharge and recirculation when the key is triggered through the elastic deformation of the Rubber Dome and its supporting multi-layer stacked hole design. The close fit of the Rubber Dome conductive layer and the lower membrane key contacts ensures highly reliable on-off performance. The precise configuration of the supporting layer "windows" and vents avoids short circuits or air blockages in inactive areas and provides sufficient support for gas discharge and conductive functions. The substrate provides effective support and heat dissipation channels at the bottom layer, further enhancing the stability and durability of the overall structure.
[0019] The notebook keyboard solution of this application achieves structural simplification and process improvement while ensuring key functionality through layer optimization of Rubber Dome-support layer-lower membrane material-substrate, combined with a multi-level air vent design. The technical effects include: 1. The number of layers is reduced, which reduces the complexity of the bonding process; 2. The air escape channel improves the key rebound response speed and enhances the user experience; 3. The substrate heat dissipation design extends the service life of the contacts and improves the stability and durability of the overall structure; 4. The modular structure facilitates integration and reserves space for subsequent expansion of more functional modules (such as backlights and sensors), achieving compatibility between high integration and flexibility.
[0020] like Figure 1 The method for setting up the laptop keyboard of the present application includes the following steps: Step 110: stacking the Rubber Dome, the support layer, the lower film material, and the substrate in order from top to bottom inside the notebook keyboard; Multiple substrate vent holes are provided on the substrate, corresponding to the vent holes in the lower film material. The vent holes in the support layer, lower film material, and substrate material are all identical in shape and size (to ensure smooth exhaust), and their positions overlap to form a continuous gas channel. A multi-stage vent channel: The vent holes in the support layer, lower film material, and substrate material are coaxially aligned to form a continuous gas channel. This ensures rapid air discharge when pressing and rapid air return when releasing the key, significantly improving rebound speed and key feel. This effectively ensures that the key maintains sensitive rebound and a comfortable touch even with frequent presses, enhancing the user experience.
[0021] The base plate is made of metal or composite material, and provides support and heat dissipation for the notebook keyboard. By making the base plate from a variety of materials, the adaptability of the product can be improved and the production cost can be reduced.
[0022] Step 120: The Rubber Dome is configured as a bowl-shaped elastic structure, and a Rubber Dome conductive layer is disposed on the bottom of the bowl of the bowl-shaped elastic structure; X-axis key contacts and Y-axis key contacts are disposed on the surface of the lower film material; and a plurality of lower film material vent holes are disposed on the surface of the lower film material. The rubber dome is made of silicone or nitrile rubber, and the conductive layer is affixed to the bottom of the rubber dome by printing, spraying, deposition, evaporation, sputtering, chemical vapor deposition, physical vapor deposition, hot melting, hot pressing, hot melting and hot pressing, or hot melting and hot pressing and heat curing. By utilizing a variety of process methods and material options, production compatibility is improved, production costs are reduced, and large-scale production is facilitated.
[0023] The conductive material of the conductive layer can include silver paste, carbon or metal alloy. The diversity of conductive material selection can reduce production costs and facilitate large-scale production.
[0024] It also includes: an X-axis conductive circuit and a Y-axis conductive circuit corresponding to the X-axis key contact and the Y-axis key contact are also set on the surface of the lower film material, and are connected to the external keyboard scanning circuit via the X-axis conductive circuit, the Y-axis conductive circuit, and the external keyboard scanning circuit; wherein, the X-axis key contact is set to be electrically connected to the external keyboard scanning circuit through the X-axis circuit, and the Y-axis key contact is set to be electrically connected to the external keyboard scanning circuit through the Y-axis circuit, and the X-axis contact and the Y-axis contact are set to be adjacent and non-overlapping structures. The lower film material is directly integrated with the X-axis conductive circuit and the Y-axis conductive circuit, which reduces the middle layer, simplifies the structure, simplifies the process, and improves production efficiency.
[0025] The X-axis key contacts, Y-axis key contacts, X-axis circuits, and Y-axis circuits are made of conductive materials and are fixed to the lower film material by methods including but not limited to printing, spraying, deposition, evaporation, sputtering, chemical vapor deposition, physical vapor deposition, hot melt, hot pressing, hot melt hot pressing, or hot melt hot pressing and heat curing. This multi-process approach improves production compatibility and facilitates large-scale production.
[0026] The X-axis key contacts, Y-axis key contacts, X-axis circuits, and Y-axis circuits are made of conductive materials that may include silver paste, carbon, or metal alloys. The variety of conductive material options can reduce production costs and facilitate large-scale production.
[0027] Step 130: Dispose a plurality of support layer air escape holes and a support layer key trigger window on the support layer, and set the position of the support layer key trigger window to correspond to the position of the X-axis key contact and the Y-axis key contact provided on the surface of the lower film material, so that the support layer key trigger window covers the upper part of the X-axis key contact and the Y-axis key contact; and set the position of each support layer air escape hole to correspond to the position of the corresponding air escape hole of the lower film material; The system also includes: setting the area of the window for triggering the key in the support layer to be smaller than the area of the rubber dome's rim, and larger than the area of the distribution area of the X-axis key contacts and the Y-axis key contacts. Setting the X-axis contacts and the Y-axis contacts adjacent to each other without overlapping, the window for triggering the key in the support layer accurately covers the contact area, avoiding the risk of short circuits and improving the safety and stability of the device.
[0028] Step 140: Set the position of the Rubber Dome conductive layer to correspond to the positions of the X-axis key contact and the Y-axis key contact set on the surface of the lower film material. Ensure that after the Rubber Dome is pressed, the Rubber Dome conductive layer is pressed down and connected to the X-axis key contact and the Y-axis key contact to form a key trigger scanning circuit.
[0029] The key-activated window on the support layer is then covered by the Rubber Dome. The edge of the Rubber Dome covers the multiple air vents in the support layer and the key-activated window. The edge of the Rubber Dome adheres to the support layer, which in turn adheres to the lower film of the bonding substrate, forming a stacked keyboard structure. The key-activated window on the support layer precisely covers the contact area, preventing short circuit risks and improving device safety and stability.
[0030] Figure 2 This is an exploded diagram of the stacked structure of a notebook keyboard, showing the stacking relationship of Rubber Dome 1, support layer 3, lower film material 4, and substrate 5; wherein a Rubber Dome conductive layer 102 is set on Rubber Dome 1.
[0031] Figure 3 This is a cross-sectional diagram of a stacked structure of a notebook keyboard, showing the deformation of the Rubber Dome and the gas flow path when pressed; wherein, the Rubber Dome 1 includes a Rubber Dome conductive layer 102; the support layer 3 includes a support layer air escape hole 301 and a support layer key trigger window 302 ( Figure 3 (not shown); the lower film material 4 includes an X-axis key contact 401, a Y-axis key contact 402, an X-axis conductive circuit 403, a Y-axis conductive circuit 404 and a lower film material vent hole 405; the substrate 5 includes a substrate vent hole 501.
[0032] Figure 4 Schematic diagram of the support layer structure, marking the distribution of the support layer air escape holes 301 and the support layer button-triggered windows 302. Figure 5 Schematic diagram of the lower film structure, showing the layout of the X-axis contact 401 , the Y-axis contact 402 , the X-axis conductive circuit 403 , the Y-axis conductive circuit 404 and the lower film vent hole 405 .
[0033] Figure 6 Schematic diagram of the substrate structure, showing the array arrangement of the substrate vent holes 501 and the design of the heat dissipation channels.
[0034] The working process of the laptop keyboard of this application is as follows: When Rubber Dome 1 is pressed, it deforms, and the space inside the Rubber Dome 1 cavity shrinks. The Rubber Dome conductive layer 102 at the bottom of the Rubber Dome 1 bowl presses down on the X-axis key contact 401 and the Y-axis key contact 402 on the lower film material 4. The keyboard scanning electrical signal travels from the X-axis conductive circuit 403 to the X-axis key contact 401, passes through the Rubber Dome conductive layer 102 to the Y-axis key contact 402, and then passes through the Y-axis conductive circuit 404 to form a complete key trigger scanning action. The air inside the Rubber Dome 1 cavity is discharged through the support layer vent 301, the lower film vent 405, and the substrate vent 501 to form a conductive loop. When Rubber Dome 1 is released, Rubber Dome 1 returns to its original state, and the air inside Rubber Dome 1 is sucked in through the substrate escape hole 501, the lower film material escape hole 405 and the support layer escape hole 301, and the Rubber Dome conductive layer 102 at the bottom of the Rubber Dome 1 bowl returns to its original state; at the same time, the electrical signal circuit connecting the lower film material X-axis key contact 401 and the lower film material Y-axis key contact 402 is disconnected, and the key trigger scanning action ends.
[0035] In this application, each preferred solution only focuses on the differences from other preferred solutions. As long as the preferred solutions do not conflict, they can be combined arbitrarily. The embodiments formed by the combination are also within the scope disclosed in this specification. Considering the simplicity of the text, this article will no longer describe the embodiments formed by the combination separately.
[0036] The foregoing is merely an embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application should all be included within the scope of the claims of the present application.
[0037] In this document, each preferred solution only focuses on the differences from other preferred solutions. As long as the preferred solutions do not conflict, they can be combined arbitrarily. The embodiments formed by the combination are also within the scope disclosed in this specification. Considering the simplicity of the text, this document will no longer describe the embodiments formed by the combination separately.
[0038] The foregoing is merely an embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application should all be included within the scope of the claims of the present application.
Claims
1. A method for setting a notebook keyboard, characterized in that: include: Rubber Dome, support layer and lower membrane material are stacked in order from top to bottom inside the laptop keyboard; The Rubber Dome is set to a bowl-shaped elastic structure, and a Rubber Dome conductive layer is set at the bottom of the bowl of the bowl-shaped elastic structure; X-axis key contacts and Y-axis key contacts are set on the surface of the lower film material; and multiple lower film material vent holes are set on the surface of the lower film material; A plurality of support layer air escape holes and a support layer key trigger window are provided on the support layer, and the position of the support layer key trigger window is set to correspond to the position of the X-axis key contact and the Y-axis key contact provided on the surface of the lower film material, so that the support layer key trigger window covers the upper part of the X-axis key contact and the Y-axis key contact; the position of each support layer air escape hole is set to correspond to the position of the corresponding air escape hole of the lower film material; Set the position of the Rubber Dome conductive layer to correspond to the positions of the X-axis key contacts and Y-axis key contacts set on the surface of the lower film material. Ensure that when the Rubber Dome is pressed, the Rubber Dome conductive layer is pressed down and connected to the X-axis key contacts and Y-axis key contacts to form a key trigger scanning circuit.
2. The method for setting up a notebook keyboard according to claim 1, wherein: It also includes: setting a substrate at the bottom of the lower film material, and setting a plurality of substrate escape holes corresponding to the escape holes of the lower film material on the substrate, the shape and size of the support layer escape holes, the lower film material escape holes and the substrate escape holes are the same, and the positions of the support layer escape holes, the lower film material escape holes and the substrate escape holes overlap to form a continuous gas channel.
3. The method for setting up a notebook keyboard according to claim 2, wherein: It also includes: an X-axis conductive circuit and a Y-axis conductive circuit corresponding to the X-axis key contact and the Y-axis key contact are also set on the surface of the lower film material, and are connected to the external keyboard scanning circuit via the X-axis conductive circuit, the Y-axis conductive circuit, and the external keyboard scanning circuit; wherein, the X-axis key contact is set to be electrically connected to the external keyboard scanning circuit through the X-axis circuit, and the Y-axis key contact is set to be electrically connected to the external keyboard scanning circuit through the Y-axis circuit, and the X-axis contact and the Y-axis contact are set to be adjacent and non-overlapping structures.
4. The method for setting up a notebook keyboard according to claim 3, wherein: Also includes: The area of the window for triggering the opening of the window by the key on the support layer is set to be smaller than the area of the bowl mouth of the Rubber Dome, and larger than the area of the distribution area of the X-axis key contact and the Y-axis key contact.
5. The method for setting up a notebook keyboard according to claim 4, wherein: Also includes: When the Rubber Dome is inverted on the supporting layer and the supporting layer key triggers the window to open, the bowl edge of the Rubber Dome covers multiple supporting layer air escape holes and the supporting layer key trigger window to open. The bowl edge of the Rubber Dome is bonded to the supporting layer, and the supporting layer is bonded to the lower membrane material of the bonding substrate to form a keyboard stacked structure.
6. The method for setting up a notebook keyboard according to claim 5, wherein: Also includes: The substrate is made of metal or composite material, and provides support and heat dissipation for the notebook keyboard.
7. The method for setting up a notebook keyboard according to claim 6, wherein: Also includes: The material of the Rubber Dome is set to be silicone or nitrile rubber, and the conductive layer is fixed to the bottom of the Rubber Dome by printing, spraying, deposition, evaporation, sputtering, chemical vapor deposition, physical vapor deposition, hot melting, hot pressing, hot melting and hot pressing, or hot melting and hot pressing and hot curing.
8. The method for setting up a notebook keyboard according to claim 7, wherein: It also includes: the X-axis key contacts, Y-axis key contacts, X-axis circuits and Y-axis circuits are made of conductive materials and are fixed on the lower film material by printing, spraying, deposition, evaporation, sputtering, chemical vapor deposition, physical vapor deposition, hot melting, hot pressing, hot melting and hot pressing or hot melting and hot pressing and hot curing.