Keyboard adhesive film with keys
By designing the key body structure of the keyboard membrane and the air groove exhaust and intake design, the problem of poor exhaust of the key body was solved, thereby improving the key response speed and user experience.
Patent Information
- Application Number
- CN202520238992.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-14
- Publication Date
- 2025-12-19
- Estimated Expiration
- 2035-02-14
AI Technical Summary
Existing keyboards, without air vents, suffer from poor air intake and exhaust of the key body, affecting the pressing response speed and user experience.
Design a keyboard membrane. The main body of the key includes a support cylinder, a pressing part and a trigger part. The bottom of the membrane body is provided with an annular protrusion and an air groove. When pressed, the air groove quickly exhausts air and when reset, it quickly introduces air. The support protrusion provides stable support. The main body of the key and the membrane body are integrally formed.
It improves button response speed and consistency, provides a good user experience, has moderate pressing resistance, and reduces the impact of gas intake and exhaust resistance.
Smart Images
Figure CN223693029U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to keyboard technical field, especially a keyboard adhesive film. BACKGROUND
[0002] The thin film keyboard mainly includes a shell, an adhesive film and a thin film circuit switch and the like structure, the adhesive film is provided with a key main body of silica gel material, the top of the key main body is provided with a key cap, the key cap and the shell are provided with an elastic support, the bottom of the key main body is provided with a thin film circuit switch. Figure 1 The shell of some existing keyboards has a first mounting plate 111, the adhesive film is located below the first mounting plate 111, and a hole position is formed in the first mounting plate 111, and the key main body 30 is located at the hole position.
[0003] When operating, the finger presses down the key cap to make the key main body deform downward, the trigger part on the key main body presses the thin film circuit switch to drive the electrode contact points in the thin film circuit switch to contact each other to realize conduction, so that information can be input to the computer through the keyboard; after canceling the key cap, the key main body is elastically reset and drives the key cap to reset.
[0004] Some keyboards with waterproof function do not have air holes on the key main body to avoid water and other liquids from the outside entering the keyboard. However, the key main body needs to exhaust inside when pressed, and needs to intake air when reset. For the above structure without air holes, since the key main body and the bottom of the adhesive film are usually closely arranged with the thin film circuit switch, the exhaust and intake of the key main body are not smooth, which will affect the pressing and reset, and the keyboard pressing reaction is slow, and the user's experience is poor. UTILITY MODEL CONTENTS
[0005] The utility model aims at providing a keyboard adhesive film with keys, which can facilitate the exhaust and intake of the key main body.
[0006] To achieve the above purpose, a keyboard adhesive film with keys is provided, which is arranged on the shell of the keyboard, the shell has a first mounting plate, the first mounting plate is provided with a first hole position, the keyboard adhesive film comprises: an adhesive film main body arranged below the first mounting plate and provided with a mounting hole; a key main body arranged at the mounting hole and inserted into the first hole position, the key main body comprises a supporting cylinder part, a pressing part and a trigger part, the lower end of the supporting cylinder part is connected with the adhesive film main body, the upper end is connected with the pressing part, and the trigger part is located on the inner side of the supporting cylinder part and connected with the bottom of the pressing part; the bottom of the adhesive film main body is provided with an annular boss around the mounting hole, the bottom surface of the boss is recessed with an air groove, one end of the air groove is communicated with the inner side wall of the boss, and the other end is communicated with the outer side wall of the boss.
[0007] According to the keyboard adhesive film with the keys, the bottom surface of the boss is concavely provided with a plurality of air grooves which are arranged in a radial manner.
[0008] According to the keyboard adhesive film with the keys, the bottom of the adhesive film body is further provided with a plurality of supporting convex parts at intervals.
[0009] According to the keyboard adhesive film with the keys, the bottom surface of the supporting convex part is higher than the bottom surface of the boss; the shell further has a second mounting plate located below the first mounting plate, the second mounting plate is provided with a second hole position, the boss is inserted into the second hole position, and the supporting convex part is located on the top surface of the second mounting plate.
[0010] According to the keyboard adhesive film with the keys, the opening height of the other end of the air groove is greater than the thickness of the second mounting plate.
[0011] According to the keyboard adhesive film with the keys, the key body and the adhesive film body are in an integral molding structure.
[0012] According to the keyboard adhesive film with the keys, the top surface of the pressing part is provided with a first groove, the bottom surface of the first groove is provided with a second groove, the second groove extends downward into the trigger part; the height difference between the bottom surface of the trigger part and the bottom surface of the boss is H1, the height difference between the top surface of the adhesive film body and the bottom surface of the boss is H2, and H1 < H2.
[0013] According to the keyboard adhesive film with the keys, the top of the adhesive film body is provided with a convex part.
[0014] Beneficial effects: as the above structure, when the key body is pressed, air can be quickly discharged through the air groove, air can be quickly introduced through the air groove after the pressing is cancelled, the air introduction and discharge of the key body is relatively convenient, so that the reaction speed of the key body can be improved; and the key resistance mainly comes from the elastic resistance of the deformation of the key body, and is less affected by the air introduction and discharge resistance, so that the pressing resistance of each key body is relatively consistent, the resistance size is appropriate, and the user's use experience is better.
[0015] Additional aspects and advantages of the present application will be described in part in the following description, and will become apparent from the description, or will be learned by practice of the present application. BRIEF DESCRIPTION OF DRAWINGS
[0016] The present application will be further described below in conjunction with the drawings and embodiments;
[0017] Figure 1 It is a schematic view of the cooperation between the keyboard adhesive film and the keyboard shell in the prior art.
[0018] Figure 2 The top view of the first embodiment of the present application;
[0019] Figure 3 For Figure 2 A-A sectional view of the present application;
[0020] Figure 4 For the cooperation between the key body and the keyboard shell of the first embodiment of the present application is shown schematically;
[0021] Figure 5 For the cooperation between the key body and the keyboard shell of the second embodiment of the present application is shown schematically;
[0022] Figure 6 For the sectional view of the key body and the adhesive film body of the third embodiment of the present application is shown schematically;
[0023] Figure 7 For the corresponding schematic diagram of the key body pressing force and stroke in the third embodiment of the present application is shown schematically. DETAILED DESCRIPTION
[0024] This part will describe the specific embodiments of the present application in detail, the preferred embodiments of the present application are shown in the drawings, the role of the drawings is to supplement the description of the text part with graphics, so that people can intuitively and visually understand each technical feature and the overall technical scheme of the present application, but it cannot be understood as the limitation of the protection scope of the present application.
[0025] In the description of the present application, it is understood that the orientation description, such as the orientation or position relationship indicated by up, down, front, back, left, right and the like based on the orientation or position relationship shown in the drawings, is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, therefore it cannot be understood as the limitation of the present application.
[0026] In the description of the present application, greater than, less than, more than and the like are understood as not including the number, above, below, within and the like are understood as including the number. If there is a description of the first, second, it is only for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the sequence of indicated technical features.
[0027] In the description of the present application, unless otherwise explicitly limited, the words such as setting, installing and connecting should be interpreted broadly, and the person skilled in the art can reasonably determine the specific meaning of the above words in the present application according to the specific content of the technical scheme.
[0028] Referring to Figures 2-4The utility model discloses a first embodiment, a keyboard adhesive film with key, it sets up on the shell of keyboard, the shell has first mounting plate 111, and first mounting plate 111 has seted up first hole position, and this keyboard adhesive film includes adhesive film main part 20 and key main part 30, and adhesive film main part 20 sets up below first mounting plate 111, and adhesive film main part 20 is provided with mounting hole 21, and key main part 30 sets up at mounting hole 21 and inserts in first hole position, and key main part 30 includes support cylinder part 31, press part 32 and trigger part 33, and the lower end of support cylinder part 31 is connected with adhesive film main part 20, and the upper end of support cylinder part 31 is connected with press part 32, and trigger part 33 is located inside support cylinder part 31 and is connected with the bottom of press part 32. Among them, the bottom of adhesive film main part 20 is provided with annular boss 22, and boss 22 is arranged around mounting hole 21, and the bottom surface of boss 22 is recessed with air groove 221, and one end of air groove 221 is communicated with the inner side wall of boss 22, and the other end is communicated with the outer side wall of boss 22.
[0029] When keyboard is assembled, the lower part of adhesive film main part 20 is provided with film circuit switch 12, and the bottom surface of boss 22 is attached with film circuit switch 12, and the top of press part 32 is provided with key cap. When keyboard is used, key cap is pressed to press key main part 30, support cylinder part 31 is elastically deformed, trigger part 33 is moved downward to press film circuit switch 12 to drive the electrode contact point 121 in film circuit switch 12 to contact each other to realize conduction, and after canceling pressing, trigger part 33 and key cap are moved upward to reset. When pressing key main part 30, the internal space of support cylinder part 31 is reduced, the air in the internal space can be quickly discharged through air groove 221, and the air is not discharged in time to increase the pressing resistance, and after canceling pressing, the internal space of support cylinder part 31 is increased, and the air can be quickly entered through air groove 221, so that key main part 30 can be quickly reset for the next pressing.
[0030] As the above structure, when pressing key main part 30, the air can be quickly discharged through air groove 221, and after canceling pressing, the air can be quickly entered through air groove 221, so that the air inlet and outlet of key main part 30 is more convenient, thereby the response speed of key main part 30 can be improved, and the pressing resistance of each key main part 30 is more consistent, and the resistance size is appropriate, and the user's use experience is better.
[0031] In the embodiment, the bottom surface of boss 22 is recessed with a plurality of air grooves 221, and the plurality of air grooves 221 are arranged in a radial manner. Through the plurality of air grooves 221 arranged in dispersion, the air inlet and outlet efficiency of key main part 30 can be improved.
[0032] In the embodiment, the bottom of the adhesive film body 20 is also provided with a plurality of support protrusions 23. The plurality of support protrusions 23 arranged in a dispersed manner can stably support the space below the adhesive film body 20 to form a ventilation space, which is communicated with the inside of the key body 30 through the air groove 221, so as to facilitate the air in the key body 30 to be discharged and entered.
[0033] In the embodiment, the key body 30 and the adhesive film body 20 are integrally formed. The key body 30 and the adhesive film body 20 are made of silica gel material and formed by a set of molds.
[0034] In the embodiment, the top of the adhesive film body 20 is provided with a protrusion 24. During assembly of the keyboard, the protrusion 24 is inserted into the first mounting plate 111 to accurately position the keyboard adhesive film and ensure that the key body 30 is aligned with the membrane circuit switch 12.
[0035] With reference to Figure 5 Compared with the foregoing embodiments, in the second embodiment of the utility model, the bottom surface of the support protrusion 23 is higher than the bottom surface of the boss 22. The shell further has a second mounting plate 112 below the first mounting plate 111, the second mounting plate 112 is provided with a second hole position, the boss 22 is inserted into the second hole position, and the support protrusion 23 is located on the top surface of the second mounting plate 112. Through the structure, the second mounting plate 112 provides a support surface for the support protrusion 23, a ventilation space is formed above the second mounting plate 112, and the adhesive film body 20 is stably supported; the boss 22 is inserted into the second hole position, which can further accurately position the keyboard adhesive film and ensure that the key body 30 is aligned with the membrane circuit switch 12.
[0036] In the embodiment, the opening height of the other end of the air groove 221 is greater than the thickness of the second mounting plate 112. Through the structure, the air groove 221 and the ventilation space can be ensured to be communicated, so as to facilitate the air to enter and discharge the key body 30.
[0037] With reference to Figures 6-7 Compared with the foregoing embodiments, in the third embodiment of the utility model, the top surface of the pressing portion 32 is provided with a first recess 34, the bottom surface of the first recess 34 is provided with a second recess 35, the second recess 35 extends downward into the trigger portion 33, the height difference between the bottom surface of the trigger portion 33 and the bottom surface of the boss 22 is H1, the height difference between the top surface of the adhesive film body 20 and the bottom surface of the boss 22 is H2, and H1
[0038] When a pressing force is applied to the button body 30, the pressing force undergoes a process of increasing, decreasing, and increasing as the travel increases. In this embodiment, by lengthening the trigger part 33, the trigger part 33 can drive the electrode contact points 121 in the thin-film circuit switch 12 to contact each other and achieve conduction before the pressing force of the button body 30 decreases to its minimum (corresponding to...). Figure 7 As shown, point FP corresponds to the travel and pressing force during the downward pressing process. Therefore, by lengthening the trigger part 33 to adjust the conduction distance, the trigger part 33 is brought closer to the membrane circuit switch 12, improving the keyboard's response speed. Furthermore, a relatively large pressing force is still required when the support cylinder part 31 deforms, which can prevent the membrane circuit switch 12 from being turned on with a light touch of the key body 30, thereby reducing oversensitivity. The hollow trigger part 33 has good deformation performance, making the pressing feel more comfortable.
[0039] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.
Claims
1. A keyboard adhesive film having a key provided on a housing of a keyboard, the housing having a first mounting plate, the first mounting plate having a first hole position, characterized in that, The keyboard adhesive film comprises: An adhesive film body is arranged below the first mounting plate and is provided with a mounting hole; A key body is arranged at the mounting hole and is inserted into the first hole position, the key body comprises a supporting cylinder part, a pressing part and a trigger part, the lower end of the supporting cylinder part is connected with the adhesive film body, the upper end is connected with the pressing part, and the trigger part is located inside the supporting cylinder part and is connected with the bottom of the pressing part; The bottom of the adhesive film body is provided with an annular boss around the mounting hole, the bottom surface of the boss is concavely provided with an air groove, one end of the air groove is communicated with the inner side wall of the boss, and the other end is communicated with the outer side wall of the boss.
2. The keypad film according to claim 1, wherein, The bottom surface of the boss is concavely provided with a plurality of air grooves, and the air grooves are arranged in a radial manner.
3. The keypad film according to claim 1 or 2, wherein The bottom of the adhesive film body is also provided with a plurality of supporting convex parts at intervals.
4. The keypad film of claim 3, wherein the adhesive layer is a pressure sensitive adhesive layer. The bottom surface of the supporting convex part is higher than the bottom surface of the boss; the shell further has a second mounting plate below the first mounting plate, the second mounting plate is provided with a second hole position, the boss is inserted into the second hole position, and the supporting convex part is located on the top surface of the second mounting plate.
5. The keypad film of claim 4, wherein the adhesive layer is a pressure sensitive adhesive layer. The opening height of the other end of the air groove is greater than the thickness of the second mounting plate.
6. The keypad film of claim 1, wherein the adhesive layer is a pressure sensitive adhesive layer. The key body and the adhesive film body are integrally formed.
7. The keypad film of claim 1, wherein the adhesive layer is a pressure sensitive adhesive layer. The top surface of the pressing part is provided with a first groove, the bottom surface of the first groove is provided with a second groove, the second groove extends downward into the trigger part; the height difference between the bottom surface of the trigger part and the bottom surface of the boss is H1, the height difference between the top surface of the adhesive film body and the bottom surface of the boss is H2, and H1 < H2.
8. The keypad film of claim 1, wherein, The top of the adhesive film body is provided with a convex part.