Touchpad with noise reduction function

Abstract

The application discloses a touchpad with a noise reduction function, which comprises a bottom plate for detachable connection with a notebook surface shell, a touchpad assembly and a first noise reduction piece. The touchpad assembly is arranged between the bottom plate and the surface shell. The touchpad assembly comprises a touch screen module, a trigger plate and a touch piece. The touch piece is electrically connected with the touch screen module and can be triggered by contacting the trigger plate and / or the bottom plate. The first noise reduction piece is arranged between the trigger plate and the touch piece and is used for relieving the impact between the touch piece and the trigger plate and / or the bottom plate. The application effectively reduces the noise generated by the impact of the entire touchpad during use, and improves the user experience satisfaction.

Description

Technical Field

[0001] This application relates to the technical field of electronic products, and more specifically, to a touchpad with noise reduction function. Background Technology

[0002] In recent years, electronic products have not only pursued better performance in their main functions, but have also given much consideration to the user experience. For people using laptops in quiet places, loud touchpad button noise can disturb the user and those around them.

[0003] In the prior art, a touchpad includes a base plate, a touchpad spaced apart from the base plate, an electronic board located between the base plate and the touchpad and connected to the touchpad, a touch element, and a metal trigger plate disposed on the electronic board and protruding toward the base plate. The user can press the touchpad to cause the electronic board to deflect toward the base plate, thereby causing the metal trigger plate to drive the touch element to press against the base plate. However, pressing the touchpad causes the impact between the touch element and the metal trigger plate to generate obvious noise, causing noise interference to the outside world and resulting in a poor user experience. Utility Model Content

[0004] This application provides a touchpad with noise reduction function, which can effectively reduce the noise generated by the entire touchpad due to impact during use and improve user experience satisfaction.

[0005] This application provides a touchpad with noise reduction function, which adopts the following technical solution:

[0006] A touchpad with noise reduction function includes:

[0007] The base plate is used for detachable connection to the laptop's front cover;

[0008] A touchpad assembly is disposed between the base plate and the front shell. The touchpad assembly includes a touch screen module, a trigger plate, and a touch element. The touch element is electrically connected to the touch screen module and can be triggered by contacting the trigger plate and / or the base plate.

[0009] A first noise reduction component is disposed between the trigger plate and the actuating component, and the first noise reduction component is used to mitigate the impact between the actuating component and the trigger plate and / or the base plate.

[0010] Optionally, the touchpad further includes a second noise reduction component, which is disposed between the touch element and the touch screen module. The second noise reduction component is used to mitigate the impact between the touch screen module and the touch element.

[0011] Optionally, the first noise reduction component is fixedly disposed on the end face of the touch component facing the trigger plate, and the first noise reduction component is disposed corresponding to the touch component.

[0012] Optionally, the touch screen module includes a touch substrate, an electronic substrate, and a mounting bracket. The electronic substrate is disposed on the touch substrate and located between the touch substrate and the mounting bracket. The touch substrate is fixed to the mounting bracket, and the actuating element is electrically connected to the electronic substrate.

[0013] Optionally, the second noise reduction component is fixedly disposed on the end face of the touch component facing the electronic substrate.

[0014] Optionally, the touchpad further includes a third noise reduction component, which is disposed between the trigger plate and the base plate to mitigate the impact between the trigger plate and the base plate.

[0015] Optionally, the trigger plate includes a trigger part and two elastic parts. The actuating element is disposed corresponding to the central area of ​​the trigger part. The trigger part is parallel to the base plate. The two elastic parts are respectively disposed on both sides of the trigger part, and the elastic parts are fixedly connected to the trigger part.

[0016] The end of the elastic part away from the trigger part is fixedly connected to the fixing frame, and the distance between the end of the elastic part away from the trigger part and the base plate is greater than the distance between the end of the elastic part near the trigger part and the base plate.

[0017] Optionally, the touchpad further includes a fourth noise reduction component, which is disposed between the mounting bracket and the faceplate to mitigate the impact between the mounting bracket and the faceplate.

[0018] Optionally, the fixing frame has multiple protrusions on its outer edge, and the fourth noise reduction component is fixedly disposed on the end face of the protrusion facing the shell.

[0019] Optionally, the first noise reduction component and the second noise reduction component are one of the following: cushioning sponge, conductive cloth, soft rubber, and silicone.

[0020] As can be seen from the above technical solutions, the embodiments of this application have the following advantages:

[0021] When a force is applied to the touchscreen module while the base plate remains stationary, the touchscreen module transmits the force to the trigger plate. The touch element can be triggered by contacting the trigger plate and / or the base plate, thus achieving the effect of touch operation. At the same time, due to the inclusion of a first noise reduction component, the impact between the touch element and the trigger plate and / or the base plate is mitigated, thereby effectively reducing the noise generated by the touchscreen during use. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments recorded in this application. For those skilled in the art, other drawings can be obtained based on these drawings.

[0023] Figure 1 This is an exploded view of the structure of a touchpad with noise reduction function disclosed in this application;

[0024] Figure 2 This is a schematic diagram of a touchpad with noise reduction function installed on a front shell, as disclosed in this application.

[0025] Figure 3 This is a schematic diagram of the structure of a touchpad with noise reduction function installed on the front shell from another perspective, as disclosed in this application.

[0026] Figure 4 This is a front view of a touchpad with noise reduction function disclosed in this application;

[0027] Figure 5 This is a rear view of a touchpad with noise reduction function hidden base plate disclosed in this application.

[0028] Explanation of reference numerals in the attached figures:

[0029] 1. Touchpad; 11. Base plate; 12. Touchpad assembly; 121. Touch screen module; 1211. Touch substrate; 1212. Electronic substrate; 1213. Fixing bracket; 1214. Bump; 122. Trigger plate; 1221. Trigger part; 1222. Elastic part; 123. Actuator; 13. First noise reduction component; 14. Second noise reduction component; 15. Third noise reduction component; 16. Fourth noise reduction component; 2. Faceplate. Detailed Implementation

[0030] The present application will be further described in detail below with reference to the accompanying drawings.

[0031] This application provides a touchpad with noise reduction function, which can effectively reduce the noise generated by the entire touchpad due to impact during use and improve user experience satisfaction.

[0032] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present application, and not all of them. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present application. Furthermore, the technical solutions of various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by the present application.

[0033] The terms "first," "second," "third," "fourth," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments described herein can be implemented in a sequence other than that illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0034] Please see Figures 1 to 3This is an embodiment of the touchpad 1 with noise reduction function in this application. The touchpad 1 includes a base plate 11 and a touchpad 1 assembly. The base plate 11 is detachably connected to the laptop front cover 2. The touchpad 1 assembly is disposed between the base plate 11 and the front cover 2. The touchpad 1 assembly includes a touch screen module 121, a trigger plate 122, and a touch element 123. The touch element 123 is disposed on the touch screen module 121 and electrically connected to the touch screen module 121. One end of the touch element 123 away from the touch screen module 121 is spaced apart from the base plate 11. The touch element 123 can be triggered by contacting the trigger plate 122 and / or the base plate 11. Understandably, when a force is applied to the touchscreen module 121, the base plate 11 remains stationary, and the touchscreen module 121 transmits the force to the trigger plate 122. Simultaneously, the touchscreen module 121 drives the touch element 123 to move towards the trigger plate 122 and the base plate 11. The touch element 123 can be triggered by contacting the trigger plate 122 and / or the base plate 11, thereby achieving the effect of touch operation of the touchpad 1. When the force applied to the touchscreen module 121 is removed, the touchscreen module 121 can drive the touch element 123 to move synchronously away from the trigger plate 122 and the base plate 11, and then the touch element 123 resets, realizing the separation of the touch element 123 from the trigger plate 122 and the base plate 11.

[0035] In some embodiments, the trigger plate 122 and the base plate 11 are assembled together by screws, and the two can be regarded as one unit after assembly. The trigger element 123 is triggered by contacting the trigger plate 122. In other embodiments, the part of the touch plate 122 corresponding to the trigger element 123 is hollowed out, and the trigger element 123 is triggered by contacting the base plate 11.

[0036] Please see Figure 1 and Figure 3 The base plate 11 is provided with multiple through holes for bolts to pass through. The bolts pass through the through holes to fix the base plate 11 to the laptop front cover 2, thereby realizing the installation and removal of the entire touchpad 1. When the touchpad 1 malfunctions, the entire touchpad 1 can be removed from the laptop front cover 2 by removing the bolts. The detachable connection between the base plate 11 and the front cover 2 facilitates the disassembly, assembly, and replacement of the entire touchpad 1.

[0037] In this embodiment, the trigger 123 is preferably a dome switch. Dome switches are cost-effective and are made of ultra-thin and high-hardness stainless steel (typically 0.05mm to 0.1mm thick). Their hardness ranges from HV480 to HV550, which can maintain high reliability and is not easily damaged, far exceeding that of some other common triggers 123. Secondly, dome switches have good conductivity, which can achieve fast and reliable signal transmission, reduce the possibility of accidental touch, and further enhance the practicality of the product.

[0038] Please continue reading. Figure 1 Because the impact generated when the touchpad 1 is pressed, causing the touch element 123 to come into contact with the trigger plate 122 and / or the base plate 11, will generate obvious noise, causing noise interference to the outside world and resulting in a poor user experience. In order to effectively reduce the noise generated by the impact when the touchpad 1 is in use, the touchpad 1 also includes a first noise reduction element 13. The first noise reduction element 13 is disposed between the trigger plate 122 and the touch element 123. The first noise reduction element 13 is used to alleviate the impact between the touch element 123 and the trigger plate 122 and / or the base plate 11. It is understandable that when a force is applied to the touch screen module 121, the touch element 123 moves synchronously with the touch screen module 121 toward the trigger plate 122 and the base plate 11. The touch element 123 is triggered upon contact with the trigger plate 122 and / or the base plate 11. At the same time, since the first noise reduction element 13 is located between the trigger plate 122 and the touch element 123, the first noise reduction element 13 can alleviate the impact of the touch element 123 on the trigger plate 122 and / or the base plate 11, thereby reducing the noise when the touch element 123 is triggered.

[0039] Please see Figure 1 , Figure 4 and Figure 5 The touch screen module 121 includes a touch substrate 1211, an electronic substrate 1212, and a mounting bracket 1213. The electronic substrate 1212 is disposed on the touch substrate 1211 and located between the touch substrate 1211 and the mounting bracket 1213. The touch substrate 1211 is fixed to the mounting bracket 1213. The trigger 123 is electrically connected to the electronic substrate 1212. In this embodiment, the mounting bracket 1213 is arranged in a frame configuration, and the trigger plate 122 is fixedly disposed on the side of the mounting bracket 1213 away from the touch screen module 121.

[0040] Furthermore, the touchpad 1 also includes a second noise reduction component 14, which is disposed between the touch element 123 and the touch screen module 121. The second noise reduction component 14 is used to mitigate the impact between the touch screen module 121 and the touch element 123. Specifically, the second noise reduction component 14 is fixedly disposed on the end face of the touch element 123 facing the electronic substrate 1212 to reduce the impact between the touch element 123 and the electronic substrate 1212. It can be understood that when a force is applied to the touch substrate 1211, the electronic substrate 1212 moves synchronously under the drive of the touch substrate 1211, and the electronic substrate 1212 presses against the touch element 123. The second noise reduction component 14 can mitigate the impact of the electronic substrate 1212 on the touch element 123, thereby reducing the noise between the electronic substrate 1212 and the touch element 123. Under the premise of the first noise reduction component 13, the second noise reduction component 14 can further reduce the generation of noise. The first noise reduction component 13 and the second noise reduction component 14 focus on suppressing the sound resonance phenomenon caused by external physical vibration to the trigger component 123, thereby achieving the purpose of quieting down while protecting the internal precision components from damage.

[0041] In this embodiment, the first noise reduction component 13 is fixedly disposed on the end face of the touch component 123 facing the trigger plate 122, which facilitates assembly. Since the second noise reduction component 14 is fixedly disposed on the end face of the touch component 123 facing the electronic substrate 1212, the second noise reduction component 14 ensures electrical connection between the touch component 123 and the electronic substrate 1212 while maintaining a constant correspondence with the touch component 123, thereby achieving the noise reduction effect of the second noise reduction component 14.

[0042] The first noise-reducing component 13 and the second noise-reducing component 14 are respectively glued to the two ends of the actuator 123. The first noise-reducing component 13 and the second noise-reducing component 14 are circularly arranged to fit the shape of the actuator 123. The first noise-reducing component 13 and the second noise-reducing component 14 are one of the following: cushioning sponge, conductive cloth, soft rubber, and silicone. Among them, conductive cloth and cushioning sponge have elastic characteristics and moderate softness, and their porous structure helps to dissipate impact force; secondly, due to the low density of the material itself, they are lightweight and convenient for installation and deployment without adding too much burden to the entire device system.

[0043] To reduce the noise generated between the trigger plate 122 and the base plate 11, the touch panel 1 further includes a third noise reduction component 15. The third noise reduction component 15 is disposed between the trigger plate 122 and the base plate 11 to mitigate the impact between them. In this embodiment, the third noise reduction component 15 is a flat, block-shaped component, fixedly connected to the end face of the trigger plate 122 facing the base plate 11. Two third noise reduction components 15 are provided, each overlapping one of the two sides of the trigger plate 122 along its width. It is understood that when a force is applied to the touch substrate 1211, the touch substrate 1211 transmits the force to the fixing frame 1213. The fixing frame 1213 drives the trigger plate 122 to move towards the base plate 11. The third noise reduction component 15 can mitigate the impact of the trigger plate 122 on the base plate 11 when it moves towards the base plate 11, thereby reducing the noise generated between the trigger plate 122 and the base plate 11 when pressure is applied.

[0044] Please see Figure 1 and Figure 4The trigger plate 122 includes a trigger part 1221 and two elastic parts 1222. An actuating element 123 is disposed corresponding to the central area of ​​the trigger part 1221. The trigger part 1221 is parallel to the base plate 11 and provides a trigger base for the actuating element 123 to achieve the touch control effect. The two elastic parts 1222 are respectively disposed on both sides of the trigger part 1221 and are fixedly connected to the trigger part 1221. The elastic parts 1222 are used to allow the fixing frame 1213 to spring back and reset after being subjected to force, thereby driving the actuating element 123 to reset. It should be emphasized that the end of the elastic part 1222 away from the trigger part 1221 is fixedly connected to the fixing frame 1213, and the distance between the end of the elastic part 1222 away from the trigger part 1221 and the base plate 11 is greater than the distance between the end of the elastic part 1222 closer to the trigger part 1221 and the base plate 11.

[0045] Understandably, when a force is applied to the touch substrate 1211, the force is transmitted through the frame structure of the fixing bracket 1213 to the edge of the trigger plate 122, that is, the end of the elastic part 1222 away from the trigger part 1221. The end of the elastic part 1222 away from the trigger part 1221 deforms under the pressure of the fixing bracket 1213 to store energy. At this time, the touch element 123 moves toward the trigger part 1221 and contacts the trigger part 1221 to be triggered. When the force applied to the touch screen module 121 is removed, the fixing bracket 1213 releases the pressure on the end of the elastic part 1222 away from the trigger part 1221. Due to the existence of elastic potential energy, the elastic part 1222 rebounds and simultaneously drives the trigger part 1221 and the fixing bracket 1213 to move upward to reset, so that the touch element 123 is reset as a whole, realizing the separation between the touch element 123 and the trigger plate 122.

[0046] Please see Figure 1 , Figure 4 and Figure 5Furthermore, during the reset process of the touch element 123, the elastic part 1222 synchronously drives the fixing frame 1213 to reset. To reduce the noise generated by the fixing frame 1213 impacting the face shell 2 during the reset process, the touch panel 1 also includes a fourth noise reduction element 16. The fourth noise reduction element 16 is disposed between the fixing frame 1213 and the face shell 2 to alleviate the impact between the fixing frame 1213 and the face shell 2. Specifically, multiple protrusions 1214 are provided on the outer edge of the fixing frame 1213. The protrusions 1214 are located in the lower area of ​​the face shell 2. The fourth noise reduction element 16 is fixedly disposed on the end face of the protrusion 1214 facing the face shell. The number of fourth noise reduction elements 16 is the same as the number of protrusions 1214. In this embodiment, six protrusions 1214 are provided, of which four protrusions 1214 are respectively disposed at the four corners of the fixing frame 1213, and the other two protrusions 1214 are disposed on both sides of the fixing frame 1213 along the length direction. Understandably, when the force applied to the touch screen module 121 is removed, the fixing bracket 1213 releases the force applied to the trigger plate 122. Under the action of the elastic part 1222, the fixing bracket 1213 moves upward to reset. The fourth noise reduction component 16 between the fixing bracket 1213 and the face shell 2 can alleviate the impact of the fixing bracket 1213 on the face shell 2 during the reset process, thereby reducing the noise generated between the face shell 2 and the fixing bracket 1213.

[0047] The above-described embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A touchpad with noise reduction function, characterized in that, include: The base plate is used for detachable connection to the laptop's front cover; A touchpad assembly is disposed between the base plate and the front shell. The touchpad assembly includes a touch screen module, a trigger plate, and a touch element. The touch element is electrically connected to the touch screen module and can be triggered by contacting the trigger plate and / or the base plate. A first noise reduction component is disposed between the trigger plate and the actuating component, and the first noise reduction component is used to mitigate the impact between the actuating component and the trigger plate and / or the base plate.

2. The touchpad with noise reduction function according to claim 1, characterized in that, The touchpad also includes a second noise reduction component, which is disposed between the touch element and the touch screen module. The second noise reduction component is used to mitigate the impact between the touch screen module and the touch element.

3. The touchpad with noise reduction function according to claim 1, characterized in that, The first noise reduction component is fixedly disposed on the end face of the touch component facing the trigger plate.

4. The touchpad with noise reduction function according to claim 2, characterized in that, The touch screen module includes a touch substrate, an electronic substrate, and a mounting bracket. The electronic substrate is disposed on the touch substrate and located between the touch substrate and the mounting bracket. The touch substrate is fixed to the mounting bracket, and the actuating element is electrically connected to the electronic substrate.

5. The touchpad with noise reduction function according to claim 4, characterized in that, The second noise reduction component is fixedly disposed on the end face of the touch component facing the electronic substrate.

6. The touchpad with noise reduction function according to claim 5, characterized in that, The touchpad also includes a third noise reduction component, which is disposed between the trigger plate and the base plate to mitigate the impact between the trigger plate and the base plate.

7. The touchpad with noise reduction function according to claim 4, characterized in that, The trigger plate includes a trigger part and two elastic parts. The actuating element is disposed corresponding to the central area of ​​the trigger part. The trigger part is parallel to the base plate. The two elastic parts are respectively disposed on both sides of the trigger part and are fixedly connected to the trigger part. The end of the elastic part away from the trigger part is fixedly connected to the fixing frame, and the distance between the end of the elastic part away from the trigger part and the base plate is greater than the distance between the end of the elastic part near the trigger part and the base plate.

8. The touchpad with noise reduction function according to claim 4, characterized in that, The touchpad also includes a fourth noise reduction component, which is disposed between the fixing frame and the face shell to mitigate the impact between the fixing frame and the face shell.

9. The touchpad with noise reduction function according to claim 8, characterized in that, The fixing frame has multiple protrusions on its outer edge, and the fourth noise reduction component is fixedly mounted on the end face of the protrusion facing the shell.

10. The touchpad with noise reduction function according to claim 2, characterized in that, The first noise reduction component and the second noise reduction component are one of the following: cushioning sponge, conductive cloth, soft rubber, and silicone.

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