CN218957591U - Capacitive touch switch with three conductive layers stacked to form electrode - Google Patents
Capacitive touch switch with three conductive layers stacked to form electrode Download PDFInfo
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- CN218957591U CN218957591U CN202223462701.6U CN202223462701U CN218957591U CN 218957591 U CN218957591 U CN 218957591U CN 202223462701 U CN202223462701 U CN 202223462701U CN 218957591 U CN218957591 U CN 218957591U
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Abstract
The utility model relates to a capacitive touch switch with three conductive layers stacked as electrodes, which comprises an acrylic substrate, a ground color ink layer, ground glue, an insulating ink layer, a silver paste layer, a carbon paste layer and transparent conductive ink; the transparent conductive ink comprises an acrylic substrate, a ground color ink layer, an insulating ink layer, a silver paste layer, a carbon paste layer and transparent conductive ink in sequence from top to bottom; after the insulating ink layer, the silver paste layer, the carbon paste layer and the transparent conductive ink are combined, a plurality of frames for installing keys are reserved on the insulating ink layer, the silver paste layer, the carbon paste layer and the transparent conductive ink layer, and the keys are printed on the ground color ink layer; the primer is sprayed on the primer ink layer, and a distance is reserved between the primer and the insulating ink layer; the primer and the insulating ink layer are positioned on the same layer. The transparent conductive ink is adopted in the utility model, so that the functional stability of the press can be met, and meanwhile, the patterns can be kept transparent under the condition of backlight. According to the utility model, through increasing the insulating ink layer and the distance between the keys, the insulating impedance between the keys of the product is large, and the quality of the product is ensured.
Description
Technical Field
The utility model relates to a capacitive touch switch, in particular to a capacitive touch switch which adopts transparent conductive ink to ensure that the function of keys is stable, and simultaneously, patterns can be kept transparent under the condition of backlight; meanwhile, through the arrangement of increasing the distance between the insulating ink layer and the key, three conductive layers with increased insulating impedance between the key and the product are overlapped into the capacitive touch switch of the electrode.
Background
The design requirements of customers on the user interface are continuously changed and improved, the design requirements are not only limited to the realization of functions, but also fashionable in appearance requirements, novel in touch feeling, high in requirements on key service life and durability, and the like. The thin film switch adopts a capacitive touch control induction technology as a novel input mode, and has the advantages. However, the current capacitive touch switch has certain limitations:
(1) is not suitable for use in a work environment with a metal covering.
(2) When the anti-interference device is used in a radiation or noise environment, the anti-interference performance is poor, and special software is needed.
(3) In the presence of water or other contaminants, key sensing functions are poor.
(4) In the working environment where gloves need to be worn, the sensing effect of a standard capacitive touch system is poor.
Disclosure of Invention
Aiming at the problems, the main purpose of the utility model is to provide a transparent conductive ink which can meet the function stability of keys and can keep patterns transparent under the condition of backlight; meanwhile, through the arrangement of increasing the distance between the insulating ink layer and the key, three conductive layers with increased insulating impedance between the key and the product are overlapped into the capacitive touch switch of the electrode.
The utility model solves the technical problems by the following technical proposal: the capacitive touch switch with three conductive layers stacked to be electrodes adopts silver paste, carbon paste and transparent conductive ink, wherein the capacitive touch switch with three conductive layers stacked to be electrodes comprises: acrylic base material, ground color ink layer, ground glue, insulating ink layer, silver paste layer, carbon paste layer and transparent conductive ink.
The transparent conductive ink comprises an acrylic substrate, a ground color ink layer, an insulating ink layer, a silver paste layer, a carbon paste layer and transparent conductive ink in sequence from top to bottom; and after the insulating ink layer, the silver paste layer, the carbon paste layer and the transparent conductive ink are combined, a plurality of frames for installing keys are reserved on the insulating ink layer, the silver paste layer, the carbon paste layer and the transparent conductive ink layer, and the keys are printed on the ground color ink layer.
The primer is sprayed on the primer ink layer, and a distance is reserved between the primer and the insulating ink layer; the primer and the insulating ink layer are positioned on the same layer, and the thicknesses of the primer and the insulating ink layer are equal.
The primer is double-sided adhesive, is stuck on the primer ink layer and is arranged at a part except a plurality of frames for installing keys; the thickness range of the transparent conductive ink is as follows: 4-8um.
In a specific embodiment of the present utility model, the insulating ink layer has an epitaxial dimension 1.5-2.5mm wider than the silver paste layer and an epitaxial dimension 2.8-3.5mm wider than the carbon paste layer.
In a specific embodiment of the present utility model, the thickness range of the base ink layer is: 4-8um.
In a specific embodiment of the present utility model, the thickness range of the insulating ink layer is: 4-8um.
In a specific embodiment of the present utility model, the acrylic substrate has a thickness in the range of: 0.2-0.4mm.
In a specific embodiment of the present utility model, the thickness range of the silver paste layer is: 5-10um.
In a specific embodiment of the present utility model, the thickness range of the carbon paste layer is: 5-10um.
In a specific embodiment of the present utility model, a distance range between adjacent frames in a plurality of frames in which the key is installed is: 5-10mm.
The utility model has the positive progress effects that: the capacitive touch switch with three conductive layers stacked as the electrodes provided by the utility model adopts the transparent conductive ink, so that the press function is stable, and meanwhile, the patterns can be kept transparent under the condition of backlight.
The capacitive switch with high insulation performance between keys is characterized in that a silver paste layer and a carbon paste layer are printed on the surface of a base material, a ground color ink layer and an insulating ink layer are arranged between the silver paste layer and the carbon paste layer, and insulation resistance between a product key and the key is enabled to be larger than 50 megaohms by increasing the distance between the insulating ink layer and the key, so that the product quality is ensured.
Drawings
Fig. 1 is an interlayer structure diagram of a schematic structure of the present utility model.
Fig. 2 is a rear view of a schematic structural diagram of the present utility model.
Fig. 3 is a front view of a schematic structural diagram of the present utility model.
The following are names corresponding to the reference numerals in the present utility model:
1 of an acrylic substrate, 2 of a ground color ink layer, 3 of ground glue, 4 of an insulating ink layer, 5 of a silver paste layer, 6 of a carbon paste layer, 7 of transparent conductive ink and 8 of a key.
Detailed Description
The following description of the preferred embodiments of the present utility model is given with reference to the accompanying drawings, so as to explain the technical scheme of the present utility model in detail.
Fig. 1 is an interlayer structure diagram of a structure diagram of the present utility model, fig. 2 is a back view of the structure diagram of the present utility model, and fig. 3 is a front view of the structure diagram of the present utility model. As shown in the above figures, the capacitive touch switch provided by the utility model, in which three conductive layers are stacked as electrodes, adopts silver paste, carbon paste and transparent conductive ink, and the capacitive touch switch in which three conductive layers are stacked as electrodes comprises: an acrylic substrate 1, a ground color ink layer 2, ground glue 3, an insulating ink layer 4, a silver paste layer 5, a carbon paste layer 6 and transparent conductive ink 7; the transparent conductive ink comprises an acrylic substrate 1, a ground color ink layer 2, an insulating ink layer 3, a silver paste layer 4, a carbon paste layer 5 and transparent conductive ink 6 in sequence from top to bottom; after the insulating ink layer 2, the silver paste layer 5, the carbon paste layer 6 and the transparent conductive ink 7 are combined, a plurality of frames for installing keys are reserved on the insulating ink layer, and the keys are printed on the ground color ink layer; the primer is sprayed on the primer ink layer, and a distance is reserved between the primer and the insulating ink layer; in a specific printing process, each layer is tightly adhered together. The primer and the insulating ink layer are positioned on the same layer, and the thicknesses of the primer and the insulating ink layer are equal; the primer is double-sided adhesive, is attached to the primer ink layer and is attached to the parts except the frames on which the keys 8 are mounted.
In a specific implementation of the present utility model, the thickness range of the transparent conductive ink in the present utility model may be selected as follows: the epitaxial size of the insulating ink layer is 1.5-2.5mm wider than that of the silver paste layer, and the epitaxial size of the insulating ink layer is 2.8-3.5mm wider than that of the carbon paste layer; the thickness range of the ground color ink layer is as follows: 4-8um; the thickness range of the insulating ink layer can be selected as follows: 4-8um; the thickness range of the acrylic substrate can be selected as follows: 0.2-0.4mm; the thickness range of the silver paste layer can be selected as follows: 5-10um; the thickness range of the carbon paste layer can be selected as follows: 5-10um.
The distance between the keys and the adjacent frames in the plurality of frames for installing the keys can be selected as follows: 5-10mm.
The above parameters are selected according to specific requirements, and other parameters may be selected in specific implementation processes.
According to the utility model, through increasing the insulating ink layer and the distance between the keys, the insulating impedance between the keys of the product is large and 50 megaohms, so that the quality of the product is ensured.
According to the utility model, the silver paste layer 5 and the carbon paste layer 6 are printed on the surface of the acrylic substrate, and the ground color ink layer 2 and the insulating ink layer 4 are arranged between the silver paste layer 5 and the carbon paste layer 6, so that the insulating impedance between the keys of a product is more than 50 megaohms by increasing the distance between the insulating ink layer 4 and the keys, and the quality of the product is ensured.
The transparent conductive ink can meet the function stability of keys, and can keep patterns transparent under the condition of backlight.
The foregoing has shown and described the basic principles and main features of the present utility model and the advantages of the present utility model. It will be understood by those skilled in the art that the present utility model is not limited to the foregoing embodiments, which have been described in the foregoing embodiments and description merely illustrates the principles of the utility model, and that various changes and modifications may be effected therein without departing from the spirit and scope of the utility model as defined in the appended claims and their equivalents.
Claims (8)
1. The capacitive touch switch with three conductive layers stacked as electrodes is characterized in that: the capacitive touch switch adopts silver paste, carbon paste and transparent conductive ink, wherein three conductive layers are overlapped to form an electrode, and the capacitive touch switch with the three conductive layers overlapped to form the electrode comprises: an acrylic substrate, a ground color ink layer, ground glue, an insulating ink layer, a silver paste layer, a carbon paste layer and transparent conductive ink;
the transparent conductive ink comprises an acrylic substrate, a ground color ink layer, an insulating ink layer, a silver paste layer, a carbon paste layer and transparent conductive ink in sequence from top to bottom; after the insulating ink layer, the silver paste layer, the carbon paste layer and the transparent conductive ink are combined, a plurality of frames for installing keys are reserved on the insulating ink layer, the silver paste layer, the carbon paste layer and the transparent conductive ink layer, and the keys are printed on the ground color ink layer;
the primer is sprayed on the primer ink layer, and a distance is reserved between the primer and the insulating ink layer; the primer and the insulating ink layer are positioned on the same layer, and the thicknesses of the primer and the insulating ink layer are equal;
the primer is double-sided adhesive, is stuck on the primer ink layer and is arranged at a part except a plurality of frames for installing keys;
the thickness range of the transparent conductive ink is as follows: 4-8um.
2. The capacitive touch switch with three conductive layers superimposed as electrodes according to claim 1, wherein: the epitaxial size of the insulating ink layer is 1.5-2.5mm wider than the silver paste layer, and the epitaxial size of the insulating ink layer is 2.8-3.5mm wider than the carbon paste layer.
3. The capacitive touch switch with three conductive layers superimposed as electrodes according to claim 1, wherein: the thickness range of the ground color ink layer is as follows: 4-8um.
4. The capacitive touch switch with three conductive layers superimposed as electrodes according to claim 2, wherein: the thickness range of the insulating ink layer is as follows: 4-8um.
5. The capacitive touch switch with three conductive layers superimposed as electrodes according to claim 1, wherein: the thickness range of the acrylic substrate is as follows: 0.2-0.4mm.
6. The capacitive touch switch with three conductive layers superimposed as electrodes according to claim 1, wherein: the thickness range of the silver paste layer is as follows: 5-10um.
7. The capacitive touch switch with three conductive layers superimposed as electrodes according to claim 1, wherein: the thickness range of the carbon slurry layer is as follows: 5-10um.
8. The capacitive touch switch with three conductive layers superimposed as electrodes according to claim 1, wherein: the distance range between adjacent frames in a plurality of frames for installing keys is as follows: 5-10mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223462701.6U CN218957591U (en) | 2022-12-24 | 2022-12-24 | Capacitive touch switch with three conductive layers stacked to form electrode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223462701.6U CN218957591U (en) | 2022-12-24 | 2022-12-24 | Capacitive touch switch with three conductive layers stacked to form electrode |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218957591U true CN218957591U (en) | 2023-05-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223462701.6U Active CN218957591U (en) | 2022-12-24 | 2022-12-24 | Capacitive touch switch with three conductive layers stacked to form electrode |
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| CN (1) | CN218957591U (en) |
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- 2022-12-24 CN CN202223462701.6U patent/CN218957591U/en active Active
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