CN211062026U - Touch panel with noise reduction function - Google Patents
Touch panel with noise reduction function Download PDFInfo
- Publication number
- CN211062026U CN211062026U CN202020349986.4U CN202020349986U CN211062026U CN 211062026 U CN211062026 U CN 211062026U CN 202020349986 U CN202020349986 U CN 202020349986U CN 211062026 U CN211062026 U CN 211062026U
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- touch
- noise reduction
- substrate
- elastic sheet
- metal elastic
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Abstract
A touch pad with a noise reduction function comprises a touch substrate, a circuit module and a frame module. The circuit module comprises a circuit substrate connected with the touch substrate, a metal elastic sheet arranged on the circuit substrate, and a noise reduction film covering the metal elastic sheet. The metal elastic sheet is arc-shaped and protrudes from the circuit substrate. The metal elastic sheet is provided with a central part and a bending part surrounding the central part. The noise reduction film is made of a cushioning material and has a noise reduction hole at a position corresponding to the central portion. The frame module is used for mounting the touch substrate and the circuit module. The circuit module can bias towards the frame module to enable the metal elastic sheet to flex and generate a pressing signal for detecting a pressing action. The utility model discloses a noise reduction membrane reduces the vibration that the air current brought to produce noise reduction's effect.
Description
Technical Field
The utility model relates to a signal switch especially relates to a touch pad of utensil noise reduction function.
Background
An existing touch pad comprises a bottom plate, a touch substrate spaced from the bottom plate, an electronic substrate located between the bottom plate and the touch substrate and connected to the touch substrate, and a metal elastic sheet arranged on the electronic substrate and protruding towards the bottom plate. The user can press the touch substrate to drive the electronic substrate to bias towards the bottom plate, so that the metal elastic sheet is abutted against the bottom plate and bends. The metal elastic sheet can generate a pressing signal for detecting the pressing action after being bent, so that the function of detecting the pressing action of a user is achieved. However, the vibration generated when the metal spring plate and the bottom plate contact each other can generate noise, which results in poor user experience. Therefore, how to effectively reduce the noise becomes a problem worthy of investigation.
Disclosure of Invention
An object of the utility model is to provide a touch pad of utensil noise reduction function of effective noise reduction.
The utility model discloses utensil noise reduction function's touch pad contains touch substrate, circuit module, and frame module.
The touch substrate comprises a touch surface for touch control. The circuit module comprises a circuit substrate, a metal elastic sheet and a noise reduction film, wherein the circuit substrate is connected with the touch substrate and is positioned on one side opposite to the touch surface, the metal elastic sheet is arranged on the circuit substrate, and the noise reduction film covers the metal elastic sheet. The metal elastic sheet is arc-shaped and protrudes from the circuit substrate to one side opposite to the touch substrate. The metal elastic sheet is provided with a central part and a bending part surrounding the central part. The noise reduction film is made of a cushioning material and has a noise reduction hole at a position corresponding to the central portion. The frame module is used for mounting the touch substrate and the circuit module. The frame module comprises a touch part which is arranged on one side of the circuit substrate opposite to the touch substrate and is separated from the circuit substrate. The circuit module can bias towards the touch part to enable the central part of the metal elastic sheet to be abutted against the touch part, so that the flexible part is bent, and a pressing signal for detecting pressing action is generated.
The utility model discloses utensil noise reduction function's touch pad, circuit module's circuit substrate has the pin joint portion that sets up in one of them one end, and set up on the contrary in pressing the splenium of the one end of pin joint portion, the frame module is still including supplying the installation department of pin joint portion pin joint, touch the portion set up on the contrary in the one end of installation department and corresponding to press the splenium, pin joint portion can wind the installation department deflects and makes press the splenium to be close touch the portion.
The utility model discloses utensil noise reduction function's touch pad, the central part of metal shrapnel is relative to the flexure court the portion of touching of frame module is relief.
The beneficial effects of the utility model reside in that: the noise reduction film is made of a buffer material and guides the air flow when pressed through the noise reduction holes to reduce vibration caused by the air flow, thereby generating an effect of reducing noise.
Drawings
Fig. 1 is a perspective combination view of an embodiment of a touch panel with noise reduction of the present invention;
FIG. 2 is a perspective assembly view of another perspective of the embodiment;
FIG. 3 is an exploded perspective view of this embodiment;
FIG. 4 is a bottom view of one circuit module of the embodiment;
FIG. 5 is a cross-sectional view of the embodiment taken along line V-V in FIG. 4;
FIG. 6 is an enlarged partial view of FIG. 5 showing the circuit module in a default position; and
fig. 7 is a partial enlarged view similar to fig. 6 showing the circuit module in a pressed position.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and examples.
Referring to fig. 1, 2 and 3, an embodiment of a touch panel with noise reduction function according to the present invention includes a touch substrate 1, a circuit module 2, and a frame module 3.
The touch substrate 1 includes a touch surface 11 for touch control.
Referring to fig. 3, 4, 5 and 6, the circuit module 2 includes a circuit substrate 21 connected to the touch substrate 1 and located on a side opposite to the touch surface 11, a metal spring 22 disposed on the circuit substrate 21, and a noise reduction film 23 covering the metal spring 22.
The circuit board 21 has a pivot portion 211 disposed at one end thereof, and a pressing portion 212 disposed at an end opposite to the pivot portion 211. The metal dome 22 is arc-shaped and protrudes from the circuit substrate 21 to a side opposite to the touch substrate 1. The metal dome 22 has a central portion 221 and a flexible portion 222 surrounding the central portion 221. The central portion 221 is embossed toward the touch portion 31 of the frame module 3 with respect to the flexure portion 222. The noise reduction film 23 is made of a cushioning material and has a noise reduction hole 231 at a position corresponding to the center portion 221.
The frame module 3 is used for mounting the touch substrate 1 and the circuit module 2. The frame module 3 includes a touch portion 31 disposed on a side of the circuit substrate 21 opposite to the touch substrate 1 and spaced apart from the circuit substrate 21, and an installation portion 32 for pivotally connecting the pivot portion 211. The touching portion 31 is disposed at an end opposite to the mounting portion 32 and corresponds to the pressing portion 212.
Referring to fig. 5, 6 and 7, the circuit module 2 can move between a default position and a pressing position relative to the frame module 3. In the default position, the pressing portion 212 of the circuit module 2 is far away from the touching portion 31 of the frame module 3, so the metal dome 22 will not be bent. The user can press the touch substrate 1 to drive the circuit module 2 to move to the pressing position. In the moving process, the pivot portion 211 of the circuit module 2 deflects around the mounting portion 32 to make the pressing portion 212 approach the touch portion 31, and the central portion 221 of the metal dome 22 abuts against the touch portion 31, so that the metal dome 22 is deflected. In detail, in the pressing position, the pressing portion 212 is adjacent to the touch portion 31 of the frame module 3, and the central portion 221 abuts against the touch portion 31 and bends the flexible portion 222, so that the central portion 221 contacts with the circuit substrate 21 to generate a pressing signal for detecting a pressing operation.
It should be noted that the metal dome 22 itself vibrates when flexing and disturbs the surrounding airflow to generate noise. However, in the present embodiment, the disturbed airflow is guided by the noise reduction hole 231 and repeatedly oscillates in the noise reduction hole 231. And because the noise reduction membrane 23 is made of a buffer material (such as sponge or silica gel), the vibration caused by the airflow oscillation can be effectively absorbed, and the vibration of the metal elastic sheet 22 can also be absorbed, so that the effect of reducing the noise is effectively generated.
To sum up, the utility model discloses utensil noise reduction function's touch pad adopts buffer material and guides the air current in order to reduce the vibration that the air current brought when pressing through this noise reduction membrane 23 through this noise reduction hole 231 to produce noise reduction's effect, so can reach the purpose of the utility model with the cost really.
Claims (3)
1. The utility model provides a touch pad of utensil noise reduction function, contains touch substrate, circuit module, and frame module, its characterized in that:
the touch substrate comprises a touch surface for touch control;
the circuit module comprises a circuit substrate, a metal elastic sheet and a noise reduction film, wherein the circuit substrate is connected with the touch substrate and is positioned on one side opposite to the touch surface, the metal elastic sheet is arranged on the circuit substrate, the noise reduction film covers the metal elastic sheet, the metal elastic sheet is arc-shaped and protrudes towards one side opposite to the touch substrate from the circuit substrate, the metal elastic sheet is provided with a central part and a bending part surrounding the central part, the noise reduction film is made of a buffer material and is provided with a noise reduction hole, and the position of the noise reduction hole corresponds to that of the central part; and
the frame module is used for installing the touch substrate and the circuit module, the frame module comprises a touch part which is arranged on one side of the circuit substrate opposite to the touch substrate and is separated from the circuit substrate, the circuit module can bias towards the touch part to enable the central part of the metal elastic sheet to be abutted against the touch part, and further the flexible part is made to flex, so that a pressing signal for detecting a pressing action is generated.
2. A touch panel with a noise reduction function according to claim 1, characterized in that: the frame module also comprises a mounting part for the pivot connection of the pivot connection part, the touch part is arranged at one end opposite to the mounting part and corresponds to the pressing part, and the pivot connection part can deflect around the mounting part to enable the pressing part to approach the touch part.
3. A touch panel with a noise reduction function according to claim 1, characterized in that: the central part of the metal elastic sheet is in relief towards the touch part of the frame module relative to the deflection part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020349986.4U CN211062026U (en) | 2020-03-19 | 2020-03-19 | Touch panel with noise reduction function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020349986.4U CN211062026U (en) | 2020-03-19 | 2020-03-19 | Touch panel with noise reduction function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211062026U true CN211062026U (en) | 2020-07-21 |
Family
ID=71587867
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020349986.4U Active CN211062026U (en) | 2020-03-19 | 2020-03-19 | Touch panel with noise reduction function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211062026U (en) |
-
2020
- 2020-03-19 CN CN202020349986.4U patent/CN211062026U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |