CN102571059A - Water-pouring-preventing capacitive touch button - Google Patents
Water-pouring-preventing capacitive touch button Download PDFInfo
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- CN102571059A CN102571059A CN2012100027293A CN201210002729A CN102571059A CN 102571059 A CN102571059 A CN 102571059A CN 2012100027293 A CN2012100027293 A CN 2012100027293A CN 201210002729 A CN201210002729 A CN 201210002729A CN 102571059 A CN102571059 A CN 102571059A
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Abstract
The invention discloses a capacitive touch button, and particularly relates to a water-pouring-preventing capacitive touch button. The water-pouring-preventing capacitive touch button comprises a single chip microcomputer or a capacitance detection circuit, one or more touch sensing electrodes and an insulated case, wherein the touch sensing electrodes are respectively connected with the single chip microcomputer or the capacitance detection circuit, the touch sensing electrodes are tightly adhered to the inner surface of the insulated case, at least a reference sensing electrode is arranged at the periphery of each touch sensing electrode or the periphery of a touch sensing electrode set consisting of a plurality of adjacent touch sensing electrodes, and each reference sensing electrode is respectively connected with the single chip microcomputer or the capacitance detection circuit and tightly adhered to the inner surface of the insulated case; and when water pouring is carried out on the surface of the insulated case, the reference sensing electrodes and the touch sensing electrodes on the surface of the insulated case successively sense the capacitance change, and the single chip microcomputer can judge that signals sensed by the touch sensing electrodes are jamming signal formed by water pouring rather than normal button signals in view of the above, thereby removing the jamming signal formed by the water pouring.
Description
Technical field
The present invention relates to a kind of capacitance touch button, especially a kind of waterproof pouring type capacitance touch button.
Background technology
Whether the capacitance touch button is to change through people's finger and the insulation crust formed capacitance of touch sensible electrode behind to discern button and be triggered; The touch sensible electrode can be insulated shell fully and wrap up; Thereby the capacitance touch button has extraordinary water resistance; Be particularly suitable for having water and infiltrate the inner occasion of product, infiltrate the inner occasion of product having water certainly, the insulation crust surface just might occur that condensation, the globule, water spatter, water overflows, the phenomenon of water logging, water pouring; Because light water conducts electricity; During the insulation crust surface occurs that condensation, the globule, water spatter, water overflows, water logging, water are drenched phenomenon, the variation that insulation crust touch sensible electrode behind equally can the inductance capacitance capacity, thus misoperation appears.Now existing producer develops the capacitance touch button chip of anti-water logging; Contain the QT1698 cake core of Science and Technology Ltd. like Ningbo spring; It is under the moderate prerequisite of sensitivity, and water spatters, water overflows, the water logging touching induction region all can misoperation, and can carry out normal touch operation; But when water drenched touch-sensitive area, the touch sensible electrode still misoperation can occur.
Summary of the invention
The technical problem that the present invention will solve is to overcome deficiency of the prior art, can not occur the waterproof pouring type capacitance touch button of misoperation when providing a kind of touching induction region of touch sensible electrode insulation case surface to be drenched by water.
In order to solve above technical problem; First kind of technical scheme that the present invention adopted is: a kind of waterproof pouring type capacitance touch button; It comprises single-chip microcomputer or capacitance testing circuit, one or more touch sensible electrode, insulation crust; The touch sensible electrode is connected with single-chip microcomputer or capacitance testing circuit respectively, and the touch sensible electrode is close to the inner surface of insulation crust, has one at least with reference to induction electrode around each described touch sensible electrode; Each is connected with single-chip microcomputer or capacitance testing circuit respectively with reference to induction electrode, and each is close to the inner surface of insulation crust with reference to induction electrode.
Second kind of technical scheme that the present invention adopted is: a kind of waterproof pouring type capacitance touch button; It comprises single-chip microcomputer or capacitance testing circuit, one or more touch sensible electrode, insulation crust; The touch sensible electrode is connected with single-chip microcomputer or capacitance testing circuit respectively; The touch sensible electrode is close to the inner surface of insulation crust, it is characterized in that: adjacent described touch sensible electrode is formed touch sensible electrode group, has one at least with reference to induction electrode around each touch sensible electrode group; Each is connected with single-chip microcomputer or capacitance testing circuit respectively with reference to induction electrode, and each is close to the inner surface of insulation crust with reference to induction electrode.
Adopt the beneficial effect of technique scheme to be: the touch sensible electrode misoperation can not occur when the touching induction region on the insulation crust surface of touch sensible electrode had water to drench.
Description of drawings
Fig. 1 is the sketch map of first embodiment of waterproof pouring type capacitance touch button,
Fig. 2 is the sketch map of second embodiment of waterproof pouring type capacitance touch button.
Fig. 3 is the sketch map of the 3rd embodiment of waterproof pouring type capacitance touch button.
Fig. 4 is the sketch map of the 4th embodiment of waterproof pouring type capacitance touch button.
Fig. 5 is the sketch map of the 5th embodiment of waterproof pouring type capacitance touch button.
Fig. 6 is the sketch map of the 6th embodiment of waterproof pouring type capacitance touch button.
Fig. 7 is the sketch map of the 7th embodiment of waterproof pouring type capacitance touch button.
Fig. 8 is the sketch map of the 8th embodiment of waterproof pouring type capacitance touch button.
Fig. 9 is the sketch map of the 9th embodiment of waterproof pouring type capacitance touch button.
Figure 10 is the sketch map of the tenth embodiment of waterproof pouring type capacitance touch button.
Figure 11 is the sketch map of the 11 embodiment of waterproof pouring type capacitance touch button.
Figure 12 is the sketch map of the 12 embodiment of waterproof pouring type capacitance touch button.
Figure 13 is the sketch map of the 13 embodiment of waterproof pouring type capacitance touch button.
Figure 14 is the sketch map of the 14 embodiment of waterproof pouring type capacitance touch button.
Figure 15 is the sketch map of the 15 embodiment of waterproof pouring type capacitance touch button.
Figure 16 is the sketch map of the 16 embodiment of waterproof pouring type capacitance touch button.
Figure 17 is the sketch map of the 17 embodiment of waterproof pouring type capacitance touch button.
Figure 18 is the sketch map of the 18 embodiment of waterproof pouring type capacitance touch button.
Figure 19 is the sketch map of waterproof pouring type capacitance touch button nineteen embodiment.
Figure 20 is the sketch map of the 20 embodiment of waterproof pouring type capacitance touch button.
Figure 21 is the sketch map of the 21 embodiment of waterproof pouring type capacitance touch button.
Figure 22 is the sketch map of the 22 embodiment of waterproof pouring type capacitance touch button.
Figure 23 is the sketch map of the 23 embodiment of waterproof pouring type capacitance touch button.
Solid line institute area surrounded is represented the touch sensible electrode among the figure, representes with A; The area surrounded representative of dotted line institute is represented with a with reference to induction electrode, has been omitted single-chip microcomputer or capacitance testing circuit and insulation crust among the figure.
Embodiment
Below in conjunction with accompanying drawing the present invention is described in further detail.
Fig. 1 is the sketch map of first embodiment of waterproof pouring type capacitance touch button; Touch sensible electrode A top has one with reference to induction electrode a; The touch sensible electrode A, be connected with single-chip microcomputer or capacitance testing circuit respectively with reference to induction electrode a; And be close to the inner surface of insulation crust, omitted single-chip microcomputer or capacitance testing circuit and insulation crust among the figure.When water drenched the insulation crust surface from top to down; The variation that the reference induction electrode a of insulation crust inner surface, touch sensible electrode A are successively sensed capacitance at short notice; Single-chip microcomputer or subsequent conditioning circuit can be judged the touch sensible electrode A in view of the above and sense the interference signal that signal is water pouring formation; Rather than normal push button signalling, the variation of sensing capacitance separately after having only the touch sensible electrode A by human body touch, single-chip microcomputer or subsequent conditioning circuit are just thought normal push button signalling.If should place the below of touch sensible electrode A with reference to induction electrode a; Can dewater equally and drench the interference signal that forms; If water drenched the insulation crust surface from the right side, a left side or from a left side, the right side, then should place the left side or the right side of touch sensible electrode A with reference to induction electrode a, do not draw among the figure.
Fig. 2 is the sketch map of second embodiment of waterproof pouring type capacitance touch button, and different with first embodiment is: have one with reference to induction electrode a around the touch sensible electrode A, and surround the touch sensible electrode A.When water is surperficial from any direction spray process insulation crust; The variation that the reference induction electrode a of insulation crust inner surface, touch sensible electrode A are successively sensed capacitance at short notice; It is that water drenches the interference signal that forms that single-chip microcomputer or subsequent conditioning circuit can be judged in view of the above; Rather than normal push button signalling, have only the touch sensible electrode A to sense the variation of capacitance separately, single-chip microcomputer or subsequent conditioning circuit are just thought normal push button signalling; Even when one thin water column at first sprays to insulation crust touch sensible electrode A at the back from any direction after, flow to again with reference to induction electrode a; Single-chip microcomputer or subsequent conditioning circuit also can be judged the touch sensible electrode A and sense the interference signal that signal is water pouring formation, rather than normal push button signalling.
Fig. 3 is the sketch map of the 3rd embodiment of waterproof pouring type capacitance touch button, and different with second embodiment is: have two with reference to induction electrode a around the touch sensible electrode A, and surround the touch sensible electrode A.Sense the variation of capacitance when two with reference among the induction electrode a any; Single-chip microcomputer or subsequent conditioning circuit can be judged the touch sensible electrode A and sense the interference signal that signal is water pouring formation; Rather than normal push button signalling, thereby improved the ability that water drenches the interference signal that forms of removing.
Fig. 4 is the sketch map of the 4th embodiment of waterproof pouring type capacitance touch button, and different with the 3rd embodiment is: have four with reference to induction electrode a around the touch sensible electrode A, and surround the touch sensible electrode A.Sense the variation of capacitance when four with reference among the induction electrode a any; Single-chip microcomputer or subsequent conditioning circuit can be judged the touch sensible electrode A and sense the interference signal that signal is water pouring formation; Rather than normal push button signalling, thereby further improved the ability that water drenches the interference signal that forms of removing.
Fig. 5 is the sketch map of the 5th embodiment of waterproof pouring type capacitance touch button, is with reference to using side by side about induction electrode a, touch sensible electrode A, with the occasion of two touch key-presss of satisfying the demand with one group among second embodiment.Sense the variation of capacitance with reference among the induction electrode a any for two; Single-chip microcomputer or subsequent conditioning circuit can be judged the touch sensible electrode A and sense the interference signal that signal is water pouring formation; Rather than normal push button signalling, thereby further improved the ability that water drenches the interference signal that forms of removing.Equally, need the occasion of a plurality of touch key-presss, can one group among second embodiment used together and get final product with reference to induction electrode a, the many groups of touch sensible electrode A, do not draw among the figure.
Fig. 6 is the sketch map of the 6th embodiment of waterproof pouring type capacitance touch button; Different with the 5th embodiment is: one group among second embodiment is used up and down with reference to induction electrode a, touch sensible electrode A side by side, with the occasion of two touch key-presss of satisfying the demand.When water drenched insulation crust when surface from top to down, can flow through successively with reference to induction electrode a, touch sensible electrode A, with reference to induction electrode a, thereby further improve the ability that water drenches the interference signal that forms of removing again.Equally, need the occasion of a plurality of touch key-presss, can one group among second embodiment used side by side up and down and get final product with reference to induction electrode a, the many groups of touch sensible electrode A, do not draw among the figure.
Fig. 7 is the sketch map of the 7th embodiment of waterproof pouring type capacitance touch button; Arranged side by side about two adjacent touch sensible electrode A; Form a touch sensible electrode group, shared above it one with reference to induction electrode a, the same with first embodiment; When water drenched the insulation crust surface from top to down; Can flow through reference induction electrode a, the touch sensible electrode A of insulation crust inner surface successively, can remove water equally and drench the interference signal that forms, can also be positioned at the left and right or below of touch sensible electrode with reference to induction electrode a.Certainly about plural adjacent touch sensible electrode A, arranged side by side up and down, forms a touch sensible electrode group, above that, descend or left and right side also shared one with reference to induction electrode a, do not draw among the figure.
Fig. 8 is the sketch map of the 8th embodiment of waterproof pouring type capacitance touch button; Arranged side by side about two adjacent touch sensible electrode A; Form a touch sensible electrode group, around it, have one, and surround two adjacent touch sensible electrode A with reference to induction electrode a.When water is surperficial from any direction spray process insulation crust; The variation that the reference induction electrode a of insulation crust inner surface, touch sensible electrode A can successively be sensed capacitance at short notice; Single-chip microcomputer or subsequent conditioning circuit can be judged the touch sensible electrode A and sense the interference signal that signal is water pouring formation; Rather than normal push button signalling, can remove water equally and drench the interference signal that forms.
Fig. 9 is the sketch map of the 9th embodiment of waterproof pouring type capacitance touch button; Different with the 8th embodiment is: about two adjacent touch sensible electrode A side by side; Form a touch sensible electrode group, around it, have two, and surround the touch sensible electrode A with reference to induction electrode a.Sense the variation of capacitance when two with reference among the induction electrode a any; Single-chip microcomputer or subsequent conditioning circuit can be judged the touch sensible electrode A and sense the interference signal that signal is water pouring formation; Rather than normal push button signalling, thereby improved the ability that water drenches the interference signal that forms of removing.
Figure 10 is the sketch map of the tenth embodiment of waterproof pouring type capacitance touch button, and different with the 9th embodiment is: around touch sensible electrode group, have four with reference to induction electrode a, and surround the touch sensible electrode A.As long as four are sensed the variation of capacitance with reference among the induction electrode a any, it is that water drenches the interference signal that forms that single-chip microcomputer or subsequent conditioning circuit can be judged, thereby has further improved the ability that water drenches the interference signal that forms of removing.
Figure 11 is the sketch map of the 11 embodiment of waterproof pouring type capacitance touch button, and different with the 8th embodiment is: side by side, form a touch sensible electrode group about three adjacent touch sensible electrode A.Around it, there is one, and surrounds touch sensible electrode group with reference to induction electrode a.The principle that removal water drenches the interference signal that forms is identical with the 8th embodiment.
Figure 12 is the sketch map of the 12 embodiment of waterproof pouring type capacitance touch button, and different with the 9th embodiment is: side by side, form a touch sensible electrode group about three adjacent touch sensible electrode A.Around it, there are two, and surround touch sensible electrode group with reference to induction electrode a.The principle that removal water drenches the interference signal that forms is identical with the 9th embodiment.
Figure 13 is the sketch map of the 13 embodiment of waterproof pouring type capacitance touch button, and different with the 11 embodiment is: four adjacent touch sensible electrode A are arranged side by side up and down, form a touch sensible electrode group.Around it, there is one, and surrounds touch sensible electrode group with reference to induction electrode a.The principle that removal water drenches the interference signal that forms is identical with the 8th embodiment.
Figure 14 is the sketch map of the 14 embodiment of waterproof pouring type capacitance touch button; Different with the 13 embodiment is: around the touch sensible electrode group of being made up of four adjacent touch sensible electrode A, have four with reference to induction electrode a, and surround touch sensible electrode group.The principle that removal water drenches the interference signal that forms is identical with the tenth embodiment.
Figure 15 is the sketch map of the 15 embodiment of waterproof pouring type capacitance touch button; Different with the 14 embodiment is: around the touch sensible electrode group of being made up of four adjacent touch sensible electrode A, be uniformly distributed with eight with reference to induction electrode a, and surround touch sensible electrode group.The principle that removal water drenches the interference signal that forms is identical with the tenth embodiment, thereby has further improved the ability that water drenches the interference signal of formation of removing.
Figure 16 is the sketch map of the 16 embodiment of waterproof pouring type capacitance touch button; Different with the 15 embodiment is: around the touch sensible electrode group of being made up of four adjacent touch sensible electrode A, be uniformly distributed with 12 with reference to induction electrode a, and surround touch sensible electrode group.Removing water, to drench the principle of the interference signal that forms identical with the 15 embodiment, from and further improved the ability that water drenches the interference signal of formation of removing.
Figure 17 is the sketch map of the 17 embodiment of waterproof pouring type capacitance touch button, and different with the 12 embodiment is: touch sensible electrode group is made up of nine adjacent touch sensible electrode A up and down side by side.The principle that removal water drenches the interference signal that forms is identical with the 12 embodiment.
Figure 18 is the sketch map of the 18 embodiment of waterproof pouring type capacitance touch button; Different with the 15 embodiment is: touch sensible electrode group is made up of nine adjacent touch sensible electrode A up and down side by side; Be uniformly distributed with 12 with reference to induction electrode a around the touch sensible electrode group, and surround touch sensible electrode group.The principle that removal water drenches the interference signal that forms is identical with the 15 embodiment.
Figure 19 is the sketch map of waterproof pouring type capacitance touch button nineteen embodiment, and different with the 18 embodiment is: be uniformly distributed with 16 with reference to induction electrode a around the touch sensible electrode group, and surround touch sensible electrode group.The principle that removal water drenches the interference signal that forms is identical with the 16 embodiment.
Figure 20 is the sketch map of the 20 embodiment of waterproof pouring type capacitance touch button, in the middle of two touch sensible electrode A shared one with reference to induction electrode a.
Figure 21 is the sketch map of the 21 embodiment of waterproof pouring type capacitance touch button, and different with the 20 embodiment is: two touch sensible electrode A up and down each shared one with reference to induction electrode a.
More than from 21 embodiment of the 5th embodiment to the; If single-chip microcomputer or subsequent conditioning circuit successively are triggered detecting two or more touch sensible electrode A at short notice; Also can judge it is that water drenches the interference signal that forms; Rather than normal push button signalling, remove the ability that water drenches the interference signal that forms thereby further improved, but the function of at this moment utilizing two or more touch key-presss to form Macintosh just can not realize.
Figure 22 is the sketch map of the 22 embodiment of waterproof pouring type capacitance touch button, and different with second embodiment is: the touch sensible electrode A is round, is the outer square of interior circle with reference to induction electrode a.
Figure 23 is the sketch map of the 23 embodiment of waterproof pouring type capacitance touch button; Different with second embodiment is: the touch sensible electrode A is round; With reference to induction electrode a is circular ring type, simultaneously two touch sensible electrode A, with reference to about induction electrode a group side by side.
The touch sensible electrode A is except square, the circle among the above embodiment, can also be rectangle, triangle, trapezoidal etc.; The quantity of touch sensible electrode A can be any.
Claims (2)
1. waterproof pouring type capacitance touch button; It comprises single-chip microcomputer or capacitance testing circuit, one or more touch sensible electrode, insulation crust; The touch sensible electrode is connected with single-chip microcomputer or capacitance testing circuit respectively; The touch sensible electrode is close to the inner surface of insulation crust; It is characterized in that: have one at least with reference to induction electrode around each described touch sensible electrode, each is connected with single-chip microcomputer or capacitance testing circuit respectively with reference to induction electrode, and each is close to the inner surface of insulation crust with reference to induction electrode.
2. waterproof pouring type capacitance touch button; It comprises single-chip microcomputer or capacitance testing circuit, one or more touch sensible electrode, insulation crust; The touch sensible electrode is connected with single-chip microcomputer or capacitance testing circuit respectively; The touch sensible electrode is close to the inner surface of insulation crust, it is characterized in that: adjacent described touch sensible electrode is formed touch sensible electrode group, has one at least with reference to induction electrode around each touch sensible electrode group; Each is connected with single-chip microcomputer or capacitance testing circuit respectively with reference to induction electrode, and each is close to the inner surface of insulation crust with reference to induction electrode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100027293A CN102571059A (en) | 2012-01-06 | 2012-01-06 | Water-pouring-preventing capacitive touch button |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100027293A CN102571059A (en) | 2012-01-06 | 2012-01-06 | Water-pouring-preventing capacitive touch button |
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| CN102571059A true CN102571059A (en) | 2012-07-11 |
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| CN2012100027293A Pending CN102571059A (en) | 2012-01-06 | 2012-01-06 | Water-pouring-preventing capacitive touch button |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103366138A (en) * | 2013-01-31 | 2013-10-23 | 广东欧珀移动通信有限公司 | Method of automatic power down protection during contact of terminal mobile with liquid and terminal mobile |
| CN106549658A (en) * | 2015-09-21 | 2017-03-29 | 佛山市顺德区美的电热电器制造有限公司 | A kind of control panel and its button crosstalk prevention method |
| CN108092657A (en) * | 2018-01-04 | 2018-05-29 | 无锡市瀚为科技有限公司 | A kind of capacitor type touch switch and its triggering method of touch electrode structuring |
| CN109450426A (en) * | 2018-10-31 | 2019-03-08 | 西安中颖电子有限公司 | A method of it is realized using more induction electrodes and is touched every sky |
| CN111431521A (en) * | 2019-01-09 | 2020-07-17 | 杭州登虹科技有限公司 | Waterproof key signal detection method and false touch prevention method for intelligent camera |
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| CN201859425U (en) * | 2010-06-24 | 2011-06-08 | 天马微电子股份有限公司 | Capacitive touch-sensitive electrode area and CTS applying same |
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| US6373265B1 (en) * | 1999-02-02 | 2002-04-16 | Nitta Corporation | Electrostatic capacitive touch sensor |
| CN201662772U (en) * | 2009-12-29 | 2010-12-01 | 汉王科技股份有限公司 | Capacitive touch type keyboard |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103366138A (en) * | 2013-01-31 | 2013-10-23 | 广东欧珀移动通信有限公司 | Method of automatic power down protection during contact of terminal mobile with liquid and terminal mobile |
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| CN106549658A (en) * | 2015-09-21 | 2017-03-29 | 佛山市顺德区美的电热电器制造有限公司 | A kind of control panel and its button crosstalk prevention method |
| CN108092657A (en) * | 2018-01-04 | 2018-05-29 | 无锡市瀚为科技有限公司 | A kind of capacitor type touch switch and its triggering method of touch electrode structuring |
| CN108092657B (en) * | 2018-01-04 | 2021-09-03 | 无锡市瀚为科技有限公司 | Capacitive touch switch with structured touch electrode and triggering method thereof |
| CN109450426A (en) * | 2018-10-31 | 2019-03-08 | 西安中颖电子有限公司 | A method of it is realized using more induction electrodes and is touched every sky |
| CN111431521A (en) * | 2019-01-09 | 2020-07-17 | 杭州登虹科技有限公司 | Waterproof key signal detection method and false touch prevention method for intelligent camera |
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Application publication date: 20120711 |