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CN-121993649-A - Touch faucet and using method thereof

CN121993649ACN 121993649 ACN121993649 ACN 121993649ACN-121993649-A

Abstract

A touch faucet and a using method thereof are provided, a faucet body of the touch faucet is mounted on a basin, a capacitive touch unit is electrically connected with a touch end and a reference potential end and used for collecting real-time capacitance values between the touch end and the reference potential end, the touch end is used for being touched by a person to change the real-time capacitance values between the touch end and the reference potential end, an electromagnetic valve is arranged between a water inlet and a water source, a controller is used for receiving the real-time capacitance values collected by the capacitive touch unit and controlling the electromagnetic valve to switch on or off the water inlet to be communicated with the water source according to whether the real-time capacitance values reach a trigger threshold value or not, a detection electrode is electrically connected with the controller and used for being in contact with the basin, and the controller is configured to detect conductivity of the basin through the detection electrode and adjust the conductivity of the basin to different trigger thresholds according to the conductivity values so that the real-time capacitance values can reach the trigger threshold value only when the touch end is touched by the person. Thereby improving the compatibility of the insulating basin and the conductive basin.

Inventors

  • CHEN JUNMIN
  • PENG SHIJIE
  • CHEN YONGSHAN

Assignees

  • 福州锐洁源电子科技有限公司

Dates

Publication Date
20260508
Application Date
20251208

Claims (8)

  1. 1. The touch tap is characterized by comprising a tap body (1), a capacitive touch unit (2), an electromagnetic valve (3), a controller (4) and a detection electrode (5); The faucet body (1) is used for being mounted on the counter basin (6) and is provided with a water inlet and a water outlet (8), and the water inlet is communicated with a water source; the capacitive touch control unit (2) is electrically connected with a touch control end (9) and a reference potential end (10) and is used for collecting a real-time capacitance value between the touch control end (9) and the reference potential end (10), and the touch control end (9) is used for being touched by a person so as to change the real-time capacitance value between the touch control end (9) and the reference potential end (10); a solenoid valve (3) arranged between the water inlet and the water source; The controller (4) is in signal connection with the capacitive touch control unit (2) and the electromagnetic valve (3) and is used for receiving the real-time capacitance value acquired by the capacitive touch control unit (2) and controlling the electromagnetic valve (3) to switch to open or close the water inlet to be communicated with a water source according to whether the real-time capacitance value reaches a trigger threshold value or not; The detection electrode (5) is electrically connected to the controller (4) and is used for being in contact with the counter basin (6), and the controller (4) is configured to detect the conductivity of the counter basin (6) through the detection electrode (5) and adjust different trigger thresholds according to the conductivity, so that the real-time capacitance value can reach the trigger threshold only when the touch control end (9) is touched by a person.
  2. 2. A touch tap as claimed in claim 1, wherein the surface of the tap body (1) is at least partially of an electrically conductive material, and the touch end (9) is an electrically conductive portion of the surface of the tap body (1).
  3. 3. A touch tap according to claim 1, wherein said reference potential end (10) is grounded.
  4. 4. A touch tap as claimed in claim 1, characterised in that the detection electrode (5) extends to a mounting surface (12) of the tap body (1) for mounting with the counter basin (6) to bring the detection electrode (5) into abutting contact with the counter basin (6) after the tap body (1) is mounted to the counter basin (6).
  5. 5. A touch tap according to claim 1, wherein the controller (4) is configured to detect whether the basin (6) is electrically conductive via the detection electrode (5), switch to a high trigger threshold when the detection electrode (5) detects that the basin (6) is electrically conductive, and switch to a low trigger threshold when the detection electrode (5) detects that the basin (6) is electrically insulating.
  6. 6. A touch tap as claimed in claim 1, wherein the controller (4) has a detection pin (13), the detection pin (13) is at a high level when the controller (4) is powered on, the detection pin (13) is electrically connected with the detection electrode (5), the high level of the detection pin (13) is pulled down to a low level when the detection electrode (5) contacts the basin (6) made of conductive material, and the controller (4) switches different trigger thresholds according to whether the detection pin (13) is at the high level or not.
  7. 7. A touch tap as claimed in claim 1, further comprising a power supply for supplying power to the capacitive touch unit (2), the solenoid valve (3) and the controller (4).
  8. 8. A touch tap using method as claimed in any one of claims 1-8, characterized in that after the tap body (1) is mounted on the counter basin (6), the detection electrode (5) is kept in contact with the counter basin (6), the controller (4) detects the conductivity of the current counter basin (6) through the detection electrode (5), the higher conductivity counter basin is adjusted to a larger trigger threshold, and a user controls the water outlet (8) of the tap body (1) to switch water by touching the touch end (9) by hand.

Description

Touch faucet and using method thereof Technical Field The invention relates to the technical field of bathroom products, in particular to a touch faucet and a using method thereof. Background The capacitive sensing tap realizes sensing triggering through a capacitive touch control unit (a capacitive sensor), and the core principle is based on monitoring capacitance change. When a human body (serving as a conductor) approaches or touches the touch end of the capacitive touch unit on the surface of the faucet, the capacitance values of the touch end and the reference potential end (usually ground) of the capacitive touch unit are changed. The capacitive touch control unit monitors the change of the capacitance, and when the change exceeds a trigger threshold, a control circuit is triggered, so that an electromagnetic valve or a motor is driven to open or close water flow. Conventional capacitive sensing faucets typically preset a fixed trigger threshold. However, when the faucet is mounted to a conductive counter basin, such as a conventional stainless steel counter basin, the parasitic capacitance between the touch end and the reference potential end of the capacitive touch unit of the capacitive sensing faucet increases significantly, resulting in an initial baseline capacitance value of the system that is much higher than that of an environment mounted to an insulating counter basin (such as a conventional ceramic counter basin). If the fixed trigger threshold is adopted, the traditional capacitive sensing tap is easier to cause false touch under the condition of non-actual triggering such as environmental change when the traditional capacitive sensing tap is installed on the conductive basin and the insulating basin, compared with the traditional capacitive sensing tap installed on the insulating basin. Disclosure of Invention The invention aims to provide a touch faucet and a using method thereof, which solve the technical problem of how to enable a capacitive sensing faucet to improve compatibility of two installation main bodies of an insulating basin and a conductive basin. To achieve the above object, the solution of the present invention is: A touch tap comprises a tap body, a capacitive touch unit, an electromagnetic valve, a controller and a detection electrode; the faucet body is used for being mounted on the counter basin and provided with a water inlet and a water outlet, and the water inlet is communicated with a water source; The capacitive touch control unit is electrically connected with a touch control end and a reference potential end and is used for collecting a real-time capacitance value between the touch control end and the reference potential end, and the touch control end is used for being touched by a person so as to change the real-time capacitance value between the touch control end and the reference potential end; the electromagnetic valve is arranged between the water inlet and the water source; The controller is in signal connection with the capacitive touch control unit and the electromagnetic valve, and is used for receiving the real-time capacitance value acquired by the capacitive touch control unit and controlling the electromagnetic valve to switch to open or close the water inlet to be communicated with a water source according to whether the real-time capacitance value reaches a trigger threshold; The detection electrode is electrically connected with the controller and is used for being in contact with the counter basin, and the controller is configured to detect the conductivity of the counter basin through the detection electrode and adjust the counter basin to different trigger thresholds according to the conductivity, so that the real-time capacitance value can reach the trigger threshold only when the touch control end is touched by a person. Further, the surface of the faucet body is at least partially made of conductive materials, and the touch end is a conductive part of the surface of the faucet body. Further, the reference potential is grounded. Further, the detection electrode extends to a mounting surface of the faucet body for mounting with the counter basin, so that the detection electrode is abutted and contacted with the counter basin after the faucet body is mounted to the counter basin. Further, the controller is configured to detect whether the basin has conductivity by the detection electrode, switch to a high trigger threshold when the detection electrode detects that the basin is of a conductive material, and switch to a low trigger threshold when the detection electrode detects that the basin is of an insulating material. Further, the controller is provided with a detection pin, when the controller is electrified, the detection pin is in a high level, the detection pin is electrically connected with the detection electrode, when the detection electrode contacts the counter basin made of the conductive material, the high level of the detection pi