CN114001190B - Touch type tap - Google Patents
Touch type tap Download PDFInfo
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- CN114001190B CN114001190B CN202010733578.3A CN202010733578A CN114001190B CN 114001190 B CN114001190 B CN 114001190B CN 202010733578 A CN202010733578 A CN 202010733578A CN 114001190 B CN114001190 B CN 114001190B
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- China
- Prior art keywords
- faucet body
- faucet
- electric signal
- closed
- opened
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03C—DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
- E03C1/00—Domestic plumbing installations for fresh water or waste water; Sinks
- E03C1/02—Plumbing installations for fresh water
- E03C1/05—Arrangements of devices on wash-basins, baths, sinks, or the like for remote control of taps
- E03C1/055—Electrical control devices, e.g. with push buttons, control panels or the like
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Domestic Plumbing Installations (AREA)
Abstract
The touch faucet provided by the embodiment of the application is powered by a battery and comprises a faucet body and a circuit board provided with a control circuit, wherein the control circuit comprises a controller, a main electrode, a plurality of monitoring electrodes and a reference ground, the controller is connected with the main electrode, the monitoring electrodes and the reference ground, and the main electrode is connected with the faucet body. Wherein, the controller is used for: and acquiring a first electric signal between the tap body and the reference ground, acquiring a second electric signal between the monitoring electrode and the reference ground, and controlling the tap body to be opened or closed according to the first electric signal and the second electric signal. The controller can determine whether external interference occurs or not according to the first electric signal and the second electric signal, if yes, the faucet body is not controlled, and if not, the faucet body is controlled to be opened or closed, so that the problem that the touch faucet is in misoperation due to the external interference can be solved, and the reliability of the touch faucet is improved.
Description
Technical Field
The application relates to the technical field of touch control, in particular to a touch faucet.
Background
At present, part of touch type water taps are powered by batteries, so that the touch type water taps can work normally when no mains supply exists, and the use experience of a user is enhanced. However, in general, since the negative electrode of the battery is set to be the ground, the touch faucet is easily subject to external disturbances, such as malfunctions caused by the touch faucet reaching a water outlet condition when subject to external disturbances, wherein the external disturbances include artificial external disturbances and natural external disturbances, the artificial external disturbances include touching of a control box, a battery connection line, a battery box, etc., and the natural external disturbances include touching of a battery connection line to a wall, etc.
Disclosure of Invention
Based on the above, the embodiment of the application provides a touch faucet, which solves the problem that the touch faucet malfunctions due to external interference.
The touch type water tap provided by the embodiment of the application is powered by a battery, and comprises a water tap body and a circuit board provided with a control circuit, wherein the control circuit comprises a controller, a main electrode, a plurality of monitoring electrodes and a reference ground, the controller is connected with the main electrode, the monitoring electrodes and the reference ground, and the main electrode is connected with the water tap body;
the controller is used for: and acquiring a first electric signal between the tap body and the reference ground, acquiring a second electric signal between the monitoring electrode and the reference ground, and controlling the tap body to be opened or closed according to the first electric signal and the second electric signal.
Optionally, the monitoring electrode is disposed beside the main electrode, and both the monitoring electrode and the main electrode are disposed in the copper-laying area of the reference ground.
Optionally, the monitoring electrode is disposed around the main electrode, and both the monitoring electrode and the main electrode are disposed in the copper-laying area of the reference ground.
Optionally, the controlling the faucet body to be opened or closed according to the first electrical signal and the second electrical signal includes:
and if the current signal intensity value of the first electric signal reaches a preset first threshold value and the current signal intensity value of the second electric signal does not reach the first threshold value, controlling the faucet body to be opened or closed.
Optionally, the controlling the faucet body to be opened or closed according to the first electrical signal and each of the second electrical signals includes:
and if the current signal intensity value of the first electric signal reaches a preset first threshold value and the current signal intensity value of the second electric signal does not reach a preset second threshold value, controlling the faucet body to be opened or closed, wherein the first threshold value is larger than the second threshold value.
Optionally, the controlling the faucet body to be opened or closed according to the first electrical signal and the second electrical signal includes:
and if the current signal intensity value of the first electric signal reaches a preset first threshold value and is kept for a preset first time length, controlling the faucet body to be opened or closed according to the second electric signal.
Optionally, the controlling the faucet body to be opened or closed according to the second electrical signal includes:
and if the current signal intensity of the second electric signal does not reach the first threshold or a preset second threshold, controlling the faucet body to be opened or closed.
Optionally, the controlling the faucet body to be opened or closed includes:
and sending a corresponding control instruction to the tap body according to the current state of the tap body so as to control the tap body to be opened or closed.
Optionally, the sending a corresponding control instruction to the faucet body according to the current state of the faucet body to control the faucet body to be opened or closed includes:
if the current state of the faucet body is a closed state, sending an opening instruction to the faucet body so as to control the faucet body to be opened;
and if the current state of the faucet body is an open state, sending a closing instruction to the faucet body so as to control the faucet body to be closed.
Optionally, after controlling the faucet body to open, the method further comprises:
if the closing instruction is not sent to the faucet body after the preset second time length, the closing instruction is sent to the faucet body so as to control the faucet body to be closed.
The touch faucet provided by the embodiment of the application is powered by a battery and comprises a faucet body and a circuit board provided with a control circuit, wherein the control circuit comprises a controller, a main electrode, a plurality of monitoring electrodes and a reference ground, the controller is connected with the main electrode, the monitoring electrodes and the reference ground, and the main electrode is connected with the faucet body. Wherein, the controller is used for: and acquiring a first electric signal between the tap body and the reference ground, acquiring a second electric signal between the monitoring electrode and the reference ground, and controlling the tap body to be opened or closed according to the first electric signal and the second electric signal. The controller can determine whether external interference occurs or not according to the first electric signal and the second electric signal, if yes, the faucet body is not controlled, and if not, the faucet body is controlled to be opened or closed, so that the problem that the touch faucet is in misoperation due to the external interference can be solved, and the reliability of the touch faucet is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a circuit diagram of a touch faucet according to an embodiment of the present application;
FIG. 2 is a circuit diagram of a control circuit according to an embodiment of the present application;
FIG. 3 is a diagram of another circuit configuration of a control circuit according to an embodiment of the present application;
fig. 4 is a signal waveform diagram of a first electrical signal and a second electrical signal in the implementation of the present application.
Detailed Description
The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
It is to be understood that the terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this specification and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
It should be further understood that the terms "first," "second," "third," "fourth," and the like in the description, in the claims, or in the above-described figures, if any, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order, and are not to be interpreted as indicating or implying a relative importance or an implicit indication of the number of features indicated.
It should be further understood that the term "and/or" as used in the present specification and the appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes such combinations.
As shown in fig. 1, the touch faucet provided by the embodiment of the application comprises a battery 10, a faucet body 20 and a circuit board 40 provided with a control circuit 30. In some embodiments, the battery 10 may be a dry cell battery, a button cell battery, a rechargeable lithium cell battery, a lead acid cell battery, etc., for providing operating power to the touch faucet. In some embodiments, faucet body 20 may include an electronically controlled valve, such as a solenoid valve, and control circuit 30 may control the opening or closing of faucet body 20 by controlling the electronically controlled valve in faucet body 20.
As shown in fig. 2, the control circuit 30 includes a controller 301, a main electrode 302, a number of monitor electrodes 303, and a reference ground 304. Wherein the controller 301 is connected to the main electrode 302, the plurality of monitor electrodes 303, and the reference ground 304, it is understood that the controller 301 is connected to the faucet body 20 through the main electrode 302. In some embodiments, reference ground 304 may be connected to the negative electrode of battery 10. Based on this, the controller 301 may acquire a first electrical signal between the faucet body 20 and the reference ground 304, and the controller 301 may also acquire a second electrical signal between the monitor electrode 303 and the reference ground 304. It should be noted that the number of the monitor electrodes 303 may be set reasonably, for example, according to the size of the circuit board 40, and only two are shown in the drawings.
Based on this, the controller 301 may control the faucet body 20 to be opened or closed according to the first and second electrical signals. Specifically, the first electrical signal is affected by the reference ground, but in the prior art, when external interference occurs, the reference ground is affected, i.e. the first electrical signal is affected, for example, the signal strength of the first electrical signal is increased to a set water outlet threshold, so that the controller sends a control command to the faucet body to control the faucet body to open, resulting in malfunction. In the present application, both the first electrical signal and the second electrical signal obtained by the controller 301 are affected by the reference ground 304, so that the controller 301 can determine whether external interference occurs according to the first electrical signal and the second electrical signal, if so, the faucet body 20 is not controlled, and if not, the faucet body 20 is controlled to be opened or closed. Therefore, the embodiment of the application can solve the problem that the touch faucet has misoperation due to external interference, and improves the reliability of the touch faucet.
In some embodiments, as shown in fig. 2, monitor electrode 303 may be disposed beside main electrode 302, with both monitor electrode 303 and main electrode 302 disposed within the copper-plated region of reference ground 304.
In some embodiments, as shown in fig. 3, monitor electrode 303 may be disposed around main electrode 302, with both monitor electrode 303 and main electrode 302 disposed within the copper-plated region of reference ground 304.
Specifically, in order to affect both the first electrical signal and the second electrical signal when external interference occurs, one or more monitor electrodes 303 may be disposed beside the main electrode 302, or one or more monitor electrodes 303 may be disposed around the main electrode 302, and all monitor electrodes 303 and the main electrode 302 are disposed in the copper-plated region of the reference ground 304. In this way, the reference ground 304 is affected when external disturbances occur, thereby affecting both the main electrode 302 and the monitor electrode 303, and thus affecting both the first electrical signal and the second electrical signal when external disturbances occur. Therefore, the controller 301 can determine whether external interference occurs according to the first electrical signal and the second electrical signal, if so, the faucet body 20 is not controlled, and if not, the faucet body 20 is controlled to be opened or closed, thereby improving the reliability of the touch faucet. Note that, the copper-plated area of the reference ground 304 is shown as an area a in fig. 2 or 3, and the copper-plated area of the reference ground 304 has no direct electrical connection relationship with the monitor electrode 303 and the main electrode 302.
In some embodiments, the controller 301 is to: if the current signal strength value of the first electric signal reaches the preset first threshold value and the current signal strength value of the second electric signal does not reach the first threshold value, the faucet body 20 is controlled to be opened or closed. The first threshold in the embodiment of the present application may be set as follows: under normal conditions, the faucet body 20 is manually touched for a plurality of times, a plurality of signal intensity values of the first electric signals are obtained, and a first threshold value is set according to the signal intensity values, for example, a first threshold value is set according to an average value of the signal intensity values.
When a person touches the tap body 20 or an external disturbance occurs, the signal intensity value of the first electric signal may be greater than or equal to the first threshold value, and thus it is necessary to determine the cause of the change in the signal intensity of the first electric signal. Specifically, since the first electrical signal and the second electrical signal are affected simultaneously when external interference occurs, the controller 301 may determine whether the current signal strength value of the first electrical signal reaches the first threshold value or not, and whether the current signal strength value of the second electrical signal reaches the first threshold value or not. In some embodiments, as shown in fig. 4, if the current signal intensity value of the first electrical signal reaches the first threshold value and the current signal intensity value of the second electrical signal does not reach the first threshold value, it may be determined that the reason for causing the signal intensity change of the first electrical signal is that a person touches the tap body 20, and thus the controller 301 may control the tap body 20 to be opened or closed. In some embodiments, if the current signal strength value of the first electrical signal reaches the first threshold value and the current signal strength value of the second electrical signal also reaches the first threshold value, it may be determined that the reason for the change in the signal strength of the first electrical signal is external interference, so the controller 301 does not have to control the faucet body 20 to be opened or closed. Therefore, the faucet body 20 is controlled to be opened or closed according to the first electric signal and the second electric signal, so that the problem of malfunction of the touch faucet due to external interference can be solved, and the reliability of the touch faucet is improved. It should be noted that, the controller 501 may detect the first electrical signal and the second electrical signal at the same time, or may detect the first electrical signal and the second electrical signal at different times, but the detection time interval should be set reasonably when detecting at different times.
In some embodiments, the controller 301 is to: if the current signal strength value of the first electrical signal reaches a preset first threshold value and the current signal strength value of the second electrical signal does not reach a preset second threshold value, the faucet body 20 is controlled to be opened or closed, wherein the first threshold value is larger than the second threshold value. The second threshold in the embodiment of the present application may be set as follows: under the condition of multiple times of artificial external interference, signal intensity values of multiple second electric signals are acquired, and a second threshold value is set according to the signal intensity values, for example, the second threshold value is set according to an average value of the signal intensity values.
When a person touches the tap body 20 or an external disturbance occurs, the signal intensity value of the first electric signal may be greater than or equal to the first threshold value, and thus it is necessary to determine the cause of the change in the signal intensity of the first electric signal. Specifically, since the first electrical signal and the second electrical signal are affected simultaneously when external interference occurs, the controller 301 may determine whether the current signal strength value of the first electrical signal reaches the first threshold value and whether the current signal strength value of the second electrical signal reaches the second threshold value. In some embodiments, as shown in fig. 4, if the current signal intensity value of the first electrical signal reaches the first threshold value and the current signal intensity value of the second electrical signal does not reach the second threshold value, it may be determined that the reason for causing the signal intensity change of the first electrical signal is that a person touches the tap body 20, and thus the controller 301 may control the tap body 20 to be opened or closed. In some embodiments, if the current signal strength value of the first electrical signal reaches the first threshold value and the current signal strength value of the second electrical signal reaches the second threshold value, it may be determined that the reason for the change in the signal strength of the first electrical signal is external interference, so the controller 301 does not have to control the faucet body 20 to be opened or closed. Therefore, the faucet body 20 is controlled to be opened or closed according to the first electric signal and the second electric signal, so that the problem of malfunction of the touch faucet due to external interference can be solved, and the reliability of the touch faucet is improved. It should be noted that, the controller 501 may detect the first electrical signal and the second electrical signal at the same time, or may detect the first electrical signal and the second electrical signal at different times, but the detection time interval should be set reasonably when detecting at different times.
In some embodiments, the controller 301 is to: if the current signal intensity value of the first electric signal reaches a preset first threshold value and is kept for a preset first time length, the faucet body is controlled to be opened or closed according to the second electric signal. In some embodiments, controlling the faucet body to open or close according to the second electrical signal includes: and if the current signal strength of the second electric signal does not reach the first threshold or a preset second threshold, controlling the faucet body to be opened or closed.
When a person swipes through the faucet body 20, the signal intensity of the first electrical signal is briefly greater than or equal to the first threshold, which results in malfunction of the touch faucet. Therefore, to solve the malfunction problem of the touch faucet in such a case, the controller 301 may determine whether the current signal strength value of the first electrical signal reaches the first threshold value and maintain the first time period, where the first time period may be reasonably set, for example, 0.8 seconds, 1 second, and so on. In some embodiments, if the current signal strength value of the first electrical signal reaches the first threshold value, but fails to remain for the first time period, the controller 301 does not have to control the faucet body 20 to open or close. In some embodiments, as shown in fig. 4, if the current signal strength value of the first electrical signal reaches the first threshold value and can be maintained for the first time period, the controller 301 needs to further determine the reason for the change of the signal strength of the first electrical signal, in other words, needs to control the faucet body to be opened or closed according to the second electrical signal.
Since the first electrical signal and the second electrical signal are affected simultaneously when external interference occurs, the controller 301 may determine whether the current signal strength value of the second electrical signal reaches the first threshold or the second threshold based on the current signal strength value of the first electrical signal having reached the first threshold and maintained for the first time period. In some embodiments, as shown in fig. 4, if the current signal intensity value of the second electrical signal does not reach the first threshold value or the second threshold value, it may be determined that the reason for causing the signal intensity change of the first electrical signal is that a person touches the tap body 20, and thus the controller 301 may control the tap body 20 to be turned on or off. In some embodiments, if the current signal strength value of the second electrical signal reaches the first threshold value or the second threshold value, it may be determined that the reason for causing the change in the signal strength of the first electrical signal is external interference, so the controller 301 does not have to control the faucet body 20 to be opened or closed. Therefore, the faucet body 20 is controlled to be opened or closed according to the first electric signal and the second electric signal, so that the problem of malfunction of the touch faucet due to external interference can be solved, and the reliability of the touch faucet is improved.
In some embodiments, the controller 301 is to: corresponding control instructions are sent to the faucet body 20 according to the current state of the faucet body 20 to control the faucet body 20 to be opened or closed. In some embodiments, sending corresponding control instructions to faucet body 20 to control faucet body 20 to open or close according to the current state of faucet body 20 includes: if the current state of the tap body 20 is the closed state, an opening instruction is sent to the tap body to control the tap body 20 to be opened; if the current state of the faucet body 20 is an open state, a closing command is sent to the faucet body 20 to control the faucet body 20 to close.
Specifically, the controller 301 may send a control instruction to the faucet body 20, so as to control the faucet body 20. Accordingly, a corresponding control command may be sent according to the current state of the faucet body 20, for example, if the current state of the faucet body 20 is a closed state, an open command is sent, and if the current state is a closed state, an open command is sent.
In some embodiments, the controller 301 is to: after controlling the faucet body 20 to be opened, if a closing instruction is not sent to the faucet body 20 after a preset second time period, a closing instruction is sent to the faucet body 20 to control the faucet body 20 to be closed.
After the user turns on the touch faucet, the user may forget to turn off the touch faucet for some reasons, so the controller 301 sends a turn-off instruction to the faucet body 20 to control the faucet body 20 to turn off if the turn-off instruction is not sent to the faucet body 20 for a second period of time after controlling the faucet body 20 to turn on.
While the application has been described with reference to certain preferred embodiments, it will be understood by those skilled in the art that various changes and substitutions of equivalents may be made and equivalents will be apparent to those skilled in the art without departing from the scope of the application. Therefore, the protection scope of the application is subject to the protection scope of the claims.
Claims (9)
1. The touch type faucet is characterized by being powered by a battery, and comprises a faucet body and a circuit board provided with a control circuit, wherein the control circuit comprises a controller, a main electrode, a plurality of monitoring electrodes and a reference ground, the controller is connected with the main electrode, the monitoring electrodes and the reference ground, and the main electrode is connected with the faucet body;
the controller is used for: acquiring a first electric signal between the tap body and the reference ground, acquiring a second electric signal between the monitoring electrode and the reference ground, and controlling the tap body to be opened or closed according to the first electric signal and the second electric signal;
the controlling the faucet body to be opened or closed according to the first electric signal and the second electric signal comprises the following steps: and if the current signal intensity value of the first electric signal reaches a preset first threshold value and the current signal intensity value of the second electric signal does not reach the first threshold value, controlling the faucet body to be opened or closed.
2. The touch faucet of claim 1, wherein the monitor electrode is disposed beside the main electrode, both the monitor electrode and the main electrode being disposed within the copper-plated area of the reference ground.
3. The touch faucet of claim 1, wherein the monitor electrode is disposed around the main electrode, both the monitor electrode and the main electrode being disposed within the copper-plated area of the reference ground.
4. The touch faucet of any of claims 1-3, wherein the controlling the faucet body to open or close according to the first electrical signal and each of the second electrical signals further comprises:
and if the current signal intensity value of the first electric signal reaches a preset first threshold value and the current signal intensity value of the second electric signal does not reach a preset second threshold value, controlling the faucet body to be opened or closed, wherein the first threshold value is larger than the second threshold value.
5. The touch faucet of any of claims 1-3, wherein the controlling the faucet body to open or close according to the first electrical signal and the second electrical signal further comprises:
and if the current signal intensity value of the first electric signal reaches a preset first threshold value and is kept for a preset first time length, controlling the faucet body to be opened or closed according to the second electric signal.
6. The touch faucet of claim 5, wherein the controlling the faucet body to open or close according to the second electrical signal further comprises:
and if the current signal intensity of the second electric signal does not reach the first threshold or a preset second threshold, controlling the faucet body to be opened or closed.
7. The touch faucet of claim 1, wherein the controlling the faucet body to open or close comprises:
and sending a corresponding control instruction to the tap body according to the current state of the tap body so as to control the tap body to be opened or closed.
8. The touch faucet of claim 7, wherein the sending a corresponding control command to the faucet body to control the faucet body to open or close according to the current state of the faucet body comprises:
if the current state of the faucet body is a closed state, sending an opening instruction to the faucet body so as to control the faucet body to be opened;
and if the current state of the faucet body is an open state, sending a closing instruction to the faucet body so as to control the faucet body to be closed.
9. The touch faucet of claim 8, further comprising, after controlling the faucet body to open:
if the closing instruction is not sent to the faucet body after the preset second time length, the closing instruction is sent to the faucet body so as to control the faucet body to be closed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010733578.3A CN114001190B (en) | 2020-07-27 | 2020-07-27 | Touch type tap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010733578.3A CN114001190B (en) | 2020-07-27 | 2020-07-27 | Touch type tap |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114001190A CN114001190A (en) | 2022-02-01 |
| CN114001190B true CN114001190B (en) | 2023-08-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010733578.3A Active CN114001190B (en) | 2020-07-27 | 2020-07-27 | Touch type tap |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114001190B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104595552A (en) * | 2015-01-28 | 2015-05-06 | 玉环联帮洁具制造有限公司 | Touch control water faucet |
| CN105370976A (en) * | 2015-09-17 | 2016-03-02 | 九牧厨卫股份有限公司 | False-touch-preventing touch type pull-draw type faucet |
| CN105422962A (en) * | 2013-11-08 | 2016-03-23 | 广州海鸥卫浴用品股份有限公司 | Tap general capacitive touch induction switch assembly |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2235272A1 (en) * | 2007-12-11 | 2010-10-06 | Masco Corporation Of Indiana | Capacitive coupling arrangement for a faucet |
| US8482409B2 (en) * | 2009-11-19 | 2013-07-09 | Masco Corporation Of Indiana | System and method for conveying status information regarding an electronic faucet |
| US8973612B2 (en) * | 2011-06-16 | 2015-03-10 | Masco Corporation Of Indiana | Capacitive sensing electronic faucet including differential measurements |
| US9958418B2 (en) * | 2015-07-01 | 2018-05-01 | Toto Ltd. | Touch detection device used in water handling equipment, and faucet apparatus including the same |
-
2020
- 2020-07-27 CN CN202010733578.3A patent/CN114001190B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105422962A (en) * | 2013-11-08 | 2016-03-23 | 广州海鸥卫浴用品股份有限公司 | Tap general capacitive touch induction switch assembly |
| CN104595552A (en) * | 2015-01-28 | 2015-05-06 | 玉环联帮洁具制造有限公司 | Touch control water faucet |
| CN105370976A (en) * | 2015-09-17 | 2016-03-02 | 九牧厨卫股份有限公司 | False-touch-preventing touch type pull-draw type faucet |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114001190A (en) | 2022-02-01 |
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