A water outlet device
By combining an infrared sensor and a capacitive touch switch, the problem of water dispensing caused by accidental touch of the capacitive touch switch is solved, and the water dispensing device can automatically shut off the water after the human body leaves, thus improving the reliability and safety of use.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FUJIAN RUIJIEYUAN INTELLIGENT KITCHEN & BATHROOM CO LTD
- Filing Date
- 2025-06-23
- Publication Date
- 2026-06-26
AI Technical Summary
Existing capacitive touch switch water dispensing devices are prone to the problem of water continuing to flow from faucets or shower heads after the user leaves due to accidental touch.
By combining an infrared sensor and a capacitive touch switch, the infrared sensor detects the range of human activity and controls the power-on state of the capacitive touch switch. The capacitive touch switch is only effective when the human body is within the sensing range, thereby controlling the opening and closing of the switch valve.
This effectively prevents the water dispenser from dispensing water when no one is present due to accidental activation, thus improving the reliability and safety of its use.
Smart Images

Figure CN224414466U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of water outlet devices, and in particular to a water outlet device. Background Technology
[0002] With the improvement of living standards, touch switches are widely used in water outlet devices such as faucets and shower heads. Due to their convenience and aesthetics, they can be seen everywhere in public places such as libraries and shopping malls. Touch switches are usually capacitive touch switches, which use capacitive sensors. By utilizing the capacitance characteristics of the human body, the water outlet of the faucet can be controlled when a person touches the switch. They are convenient to use, but there is a problem of accidental touch. For example, if water hits the switch instantly or remains on the capacitive touch switch, it will also trigger the switch. As a result, the faucet or shower head may turn on and turn on when no one is around due to accidental touch. Utility Model Content
[0003] The purpose of this utility model is to provide a water dispensing device, and the technical problem to be solved is to provide a water dispensing device that can avoid accidental activation.
[0004] To achieve the above objectives, the solution of this utility model is a water outlet device, including a water outlet device body, a capacitive touch switch and an infrared sensor. A switch valve is provided inside the water outlet device body so that when the switch valve is open, the water outlet device body dispenses water, and when the switch valve is closed, the water outlet device body shuts off the water.
[0005] The capacitive touch switch is electrically connected to the switching valve. The capacitive touch switch is configured to be triggered when touched by a human body to open the switching valve.
[0006] An infrared sensor is electrically connected to a capacitive touch switch, which is activated only after the infrared sensor is triggered. The infrared sensor's trigger range is configured to match the range of human movement when using the water dispensing device.
[0007] Furthermore, it also includes a controller, with the infrared sensor and the capacitive touch switch electrically connected to the controller. The controller is configured to power on the capacitive touch switch only when the infrared sensor is triggered, so that the capacitive touch switch is in a triggerable state.
[0008] Furthermore, the controller is electrically connected to the switching valve, and the controller is configured to open the switching valve when the infrared sensor is triggered and the capacitive touch switch is also triggered, so that water can be discharged from the water outlet device.
[0009] Furthermore, it also includes a power supply. A normally open switch is installed between the power supply and the capacitive touch switch. The normally open switch is electrically connected to the controller. When the infrared sensor is triggered, the controller controls the normally open switch to close, so that the capacitive touch switch is powered on. When the infrared sensor is not triggered, the controller controls the normally open switch to open, so that the capacitive touch switch is powered off.
[0010] Furthermore, the main body of the water outlet device is a faucet body, and the faucet body has a faucet outlet on the bottom side. The sensing range of the infrared sensor is configured to be the range of human hand movement to the faucet outlet.
[0011] Furthermore, the main body of the water outlet device is the faucet body, and the infrared sensor is set on the outer side of the faucet body. Its sensing range is configured to be the range of human hand movement when approaching the faucet body from the side.
[0012] Furthermore, the main body of the water outlet device is a top spray shower body, which has a top spray outlet. An infrared sensor is located below the top spray outlet, and its sensing range is configured to be below the top spray outlet.
[0013] Furthermore, the sensing range of the infrared sensor is configured to match the operating range of a human hand touching a capacitive touch switch.
[0014] Furthermore, the water outlet device itself can be either a faucet or an overhead shower head.
[0015] Furthermore, the controller is used to control the shut-off valve to close. The controller is configured to close the shut-off valve after the sensing signal triggered by the infrared sensor disappears for a certain period of time, thereby shutting off the water supply to the main body of the water outlet device.
[0016] The beneficial effects of this utility model after adopting the above solution are as follows: When a human body is using the water dispensing device, it is within the sensing range of the infrared sensor. At this time, the infrared sensor is triggered, thereby putting the capacitive touch switch into a triggerable state. That is, only in this state is touching the capacitive touch switch effective and triggerable. In addition, the capacitive touch switch is electrically connected to the switch valve. The triggering of the capacitive touch switch can control the switch valve to open, so that the water dispensing device dispenses water. Therefore, it can effectively avoid the problem of water dispensing from the water dispensing device due to accidental touch when the human body is not within the sensing range of the infrared sensor, thus avoiding accidental touch. Attached Figure Description
[0017] Figure 1 This is a connection diagram of this utility model.
[0018] Figure 2 This is a schematic diagram of the first sensing range configuration method of this utility model.
[0019] Figure 3This is a schematic diagram of the second sensing range configuration of this utility model.
[0020] Figure 4 This is a schematic diagram of the third sensing range configuration of this utility model.
[0021] Figure 5 This is a schematic diagram of the fourth sensing range configuration of this utility model. Figure 1 .
[0022] Figure 6 This is a schematic diagram of the fourth sensing range configuration of this utility model. Figure 2 .
[0023] Label Explanation:
[0024] 100-Water outlet device body, 200-Capacitive touch switch, 300-Infrared sensor, 400-Switch valve, 500-Controller, 600-Normally open switch, 1-Faucet body, 2-Faucet outlet, 3-Overhead shower body, 4-Overhead shower outlet. Detailed Implementation
[0025] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
[0026] Unless otherwise expressly defined, in the claims, description and accompanying drawings of this utility model, the use of directional terms such as "center", "lateral", "longitudinal", "horizontal", "vertical", "top", "bottom", "inner", "outer", "upper", "lower", "front", "rear", "left", "right", "clockwise", "counterclockwise" to indicate orientation or positional relationship is only for the convenience of describing this utility model and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the specific protection scope of this utility model.
[0027] like Figure 1As shown, this utility model provides a water outlet device, including a water outlet device body 100, a capacitive touch switch 200, and an infrared sensor 300. A switch valve 400 is installed inside the water outlet device body 100, so that water is discharged from the water outlet device body 100 when the switch valve 400 is open, and the water is turned off when the switch valve 400 is closed. The water outlet device body 100 can be any device capable of discharging water, such as a faucet, a shower head, etc., without specific limitations. The water outlet device body 100 has an outlet and an inlet, and a water flow channel is formed inside it. The two ends of the water flow channel are respectively connected to the outlet and the inlet, allowing water flowing in from the inlet to flow out from the outlet through the water flow channel. The switch valve 400 is installed on the water flow channel, and the opening and closing of the switch valve 400 realizes the opening and closing of the water flow channel, thereby controlling the water outlet device body 100 to discharge or turn off the water. This is prior art and will not be described in detail.
[0028] In this specific embodiment, the capacitive touch switch 200 is triggered by sending a first sensing signal when a human touch signal is detected, and the infrared sensor 300 is triggered by continuously sending a second sensing signal when a human body is detected within its sensing range. The capacitive touch switch 200 is electrically connected to the switching valve 400 and is configured to be triggered when touched by a human body to open the switching valve 400. Simultaneously, the infrared sensor 300 is electrically connected to the capacitive touch switch 200 and is configured to be triggered when a human body is within its sensing range. Furthermore, the capacitive touch switch 200 is only in a triggerable state after the infrared sensor 300 is triggered. The sensing trigger range of the infrared sensor 300 is configured to be the range of human body movement when using the water dispensing device body 100. It can sense the range of movement of the hand or the movement of a part of the torso. Different settings of the infrared sensor 300 can be adjusted to change different sensing ranges according to specific circumstances, thereby achieving sensing of different parts of the human body. The infrared sensor 300 can be any existing infrared sensor capable of actively sensing objects, having an infrared transmitter and an infrared receiver, capable of emitting infrared light and receiving it when it encounters an object. The capacitive touch switch 200 has a capacitive sensor. The structures of the infrared sensor 300 and the capacitive touch switch 200 are existing and will not be described in detail. In addition, there are many specific ways to set the capacitive touch switch 200 to be in a triggerable state. It can be done by controlling the power supply of the capacitive touch switch 200 to connect or disconnect it from the power supply. It can also be done by setting a signal blocker and controlling the signal blocker to determine whether to receive the second sensing signal sent by the capacitive touch switch 200. Alternatively, the infrared sensor 300 can be placed between the power supply and the capacitive touch switch 200, and an on / off circuit can be set at the infrared sensor 300 so that the capacitive touch switch 200 can only connect to the power supply when the infrared sensor 300 is triggered. Of course, there are other implementation methods, and those skilled in the art can design according to specific circumstances.
[0029] Preferably, the device also includes a controller 500, with an infrared sensor 300 and a capacitive touch switch 200 electrically connected to the controller 500. When the infrared sensor 300 is triggered, it continuously sends a second sensing signal to the controller 500. The controller 500 is configured to energize the capacitive touch switch 200 only when the infrared sensor 300 is triggered, putting the capacitive touch switch 200 in a triggerable state. That is, the controller 500 will only energize the capacitive touch switch 200 after receiving the second sensing signal, thus controlling the water dispensing device 100 to dispense water. In this state, the capacitive touch switch 200 will only be triggered when touched by a human body. Effective triggering is achieved by a normally open switch 600 between the power supply and the capacitive touch switch 200. The normally open switch 600 is electrically connected to the controller 500. When the infrared sensor 300 is triggered, the controller 500 controls the normally open switch 600 to close, energizing the capacitive touch switch 200. When the infrared sensor 300 is not triggered, the controller 500 controls the normally open switch 600 to open, de-energizing the capacitive touch switch 200. The normally open switch 600 is preferably an electromagnetic relay. In this way, the capacitive touch switch 200 does not require power supply when the power is off, and is only powered when it is in the triggered state, thus saving power and avoiding power consumption caused by the capacitive touch switch 200 being in standby mode for a long time.
[0030] Preferably, the controller 500 is also electrically connected to the switching valve 400, and the capacitive touch switch 200 is electrically connected to the switching valve 400 through the controller 500. The controller 500 is configured to cause water to flow from the water outlet body 100 when the infrared sensor 300 is triggered and the capacitive touch switch 200 is also triggered. When the capacitive touch switch 200 is triggered, it sends a first sensing signal to the controller 500. When the controller 500 receives the first sensing signal, it controls the switching valve 400 to open, thereby controlling the opening or closing of the switching valve 400. The controller 500 is a microcontroller (MCU), such as an ESP series, STM32 series, or 8051 series microcontroller. The switching valve 400 can be a solenoid valve or an electric switching valve. The microcontroller can be programmed with a pre-edited logic control program and controlled according to a predetermined program to activate the capacitive touch switch 200. 0. Powering on or controlling the switching valve. Specifically, the MCU has multiple input terminals and multiple output terminals. The input terminals are used to receive signals, and the output terminals are used to output control signals. The output terminals of the infrared sensor 300 and the capacitive touch switch 200 are respectively connected to different input terminals of the MCU. The switching valve 400 and the normally open switch 600 are respectively connected to different output pins of the MCU. The normally open switch 600 uses an electromagnetic relay. The MCU outputs different control signals through different input signals to control the working state of each component. This is existing technology and will not be elaborated on in detail. During operation, when the infrared sensor 300 is triggered, it inputs a second sensing signal to the MCU. After receiving the second sensing signal, the MCU controls the electromagnetic relay to close, and the capacitive touch switch 200 is activated. When a human touches the capacitive touch switch 200, the MCU receives the first sensing signal and controls the switching valve 400 to open.
[0031] It also includes a power supply, which supplies power to the infrared sensor 300, capacitive touch switch 200, controller 500 and switching valve 400. The power supply can be an externally connected power source or a battery, etc.
[0032] The placement of the infrared sensor 300 and the capacitive touch switch 200 is not specifically limited. They can be placed on the water outlet device body 100 or outside the water outlet device body 100, spaced apart from it, such as on the sink or on the wall. The placement can be designed according to specific circumstances.
[0033] Furthermore, the controller 500 is used to control the switch valve 400 to close. The controller 500 is configured to control the switch valve 400 to close after the sensing signal triggered by the infrared sensor 300 disappears for a certain period of time, that is, after the second sensing signal has been missing for a certain period of time, so that the water outlet body 100 shuts off the water, thus preventing the water outlet from continuing to flow after the human body leaves the effective sensing range. The duration of the disappearance of the second sensing signal can be 2S to 8S, or longer, and can be set according to specific circumstances without specific limitations.
[0034] Key points combined Figure 2 As shown, the main body 100 of the water outlet device is the faucet body 1. The faucet body 1 has a faucet outlet 2 on its bottom side. The sensing range of the infrared sensor 300 is configured to be the range of human hand movement to the faucet outlet 2. The capacitive touch switch 200 and the infrared sensor 300 are arranged adjacent to each other. When in use, the infrared sensor 300 is triggered when the hand moves to the faucet outlet 2, and the capacitive touch switch 200 is turned on. When the capacitive touch switch 200 is touched, water flows out of the faucet outlet 2.
[0035] Key points combined Figure 3 As shown, the water outlet device body 100 is the faucet body 1. The infrared sensor 300 is located on the outer side of the faucet body 1. Its sensing range is configured to be the range of human hand movement as it approaches the faucet body 1 from the side. During use, as the hand moves to the side of the faucet body 1, the infrared sensor 300 is triggered, and the capacitive touch switch 200 is turned on. Touching the capacitive touch switch 200 causes water to flow from the faucet outlet 2. Specifically, the capacitive touch switch 200 can be set adjacent to the infrared sensor 300. In other embodiments, the capacitive touch switch 200 can also be set on the wall and located behind the infrared sensor 300. In this way, during use, the movement trajectory of the hand first passes through the infrared sensor 300, triggering the infrared sensor 300 to turn on the capacitive touch switch 200, and then touching the capacitive touch switch 200 causes water to flow from the faucet outlet 2.
[0036] Key points combined Figure 4 As shown, the water outlet device body 100 is a top-spray shower body 3, which has a top-spray water outlet 4. An infrared sensor 3 is located below the top-spray water outlet 4, and its sensing range is configured to be below the top-spray water outlet 4. A capacitive touch switch 200 is arranged adjacent to the infrared sensor 3. When showering, the person needs to stand below the top-spray water outlet 4 to trigger the infrared sensor 3, and then touch the capacitive touch switch 200 to make the top-spray water outlet 4 produce water. In other embodiments, such as... Figure 6As shown, the capacitive touch switch 200 can also be installed on the wall. When a person stands below the top spray nozzle 4, the infrared sensor 3 is triggered to turn on the capacitive touch switch 200. Then, the capacitive touch switch 200 is touched, and water comes out of the top spray nozzle 4.
[0037] Key points combined Figure 5 As shown, the water outlet device body 100 is a faucet body 1, which is installed on the washbasin. The infrared sensor 300 and the capacitive touch switch 200 are arranged adjacent to each other and are located on the front side of the washbasin for the convenience of people with disabilities. The sensing range is configured to be the range of motion of a human hand touching the capacitive touch switch 200. In other embodiments, the water outlet device body 100 is a top spray shower body 2, with the infrared sensor 300 and the capacitive touch switch 200 arranged adjacent to each other and installed on the wall. When a hand touches the capacitive touch switch 200, the infrared sensor 300 is triggered first, turning on the capacitive touch switch 200. Then, when the capacitive touch switch 200 is touched, water flows out of the top spray outlet 4.
[0038] The above description is only a preferred embodiment of this utility model and is not a limitation on the design of this case. All equivalent changes made based on the key design of this case shall fall within the protection scope of this case.
Claims
1. A water outlet device, characterized in that: The device includes a water outlet body (100), a capacitive touch switch (200), and an infrared sensor (300). The water outlet body (100) is equipped with a switch valve (400) so that when the switch valve (400) is open, the water outlet body (100) dispenses water, and when the switch valve (400) is closed, the water outlet body (100) shuts off the water. A capacitive touch switch (200) is electrically connected to a switching valve (400). The capacitive touch switch (200) is configured to be triggered when touched by a human body, thereby opening the switching valve (400). An infrared sensor (300) is electrically connected to a capacitive touch switch (200) so that the capacitive touch switch (200) is in a triggerable state only after the infrared sensor (300) is triggered. The sensing trigger range of the infrared sensor (300) is configured to be the range of human body activity when the human body uses the water dispensing device body (100).
2. The water outlet device according to claim 1, characterized in that: It also includes a controller (500), an infrared sensor (300) and a capacitive touch switch (200) which are electrically connected to the controller (500). The controller (500) is configured to power on the capacitive touch switch (200) only when the infrared sensor (300) is triggered, so that the capacitive touch switch (200) is in a triggerable state.
3. The water outlet device according to claim 2, characterized in that: The controller (500) is electrically connected to the switching valve (400). The controller (500) is configured to control the switching valve (400) to open when the infrared sensor (300) is triggered and the capacitive touch switch (200) is also triggered, so that water is discharged from the water outlet body (100).
4. The water outlet device according to claim 2, characterized in that: It also includes a power supply, and a normally open switch (600) is provided between the power supply and the capacitive touch switch (200). The normally open switch (600) is electrically connected to the controller (500). When the infrared sensor (300) is triggered, the controller (500) controls the normally open switch (600) to close, so that the capacitive touch switch (200) is powered on. When the infrared sensor (300) is not triggered, the controller (500) controls the normally open switch (600) to open, so that the capacitive touch switch (200) is powered off.
5. The water outlet device according to claim 1, characterized in that: The main body (100) of the water outlet device is a faucet body (1), and a faucet outlet (2) is provided on the bottom side of the faucet body (1). The sensing range of the infrared sensor (300) is configured to be the range of human hand movement to the faucet outlet (2).
6. The water outlet device according to claim 1, characterized in that: The main body (100) of the water outlet device is the faucet body (1), and the infrared sensor (300) is set on the outer side of the faucet body (1). Its sensing range is configured to be the range of human hand movement when approaching the faucet body (1) from the side.
7. The water outlet device according to claim 1, characterized in that: The main body (100) of the water outlet device is the top spray shower body (3), the top spray shower body (3) has a top spray outlet (4), and an infrared sensor (300) is set below the top spray outlet (4), and its sensing range is configured to be below the top spray outlet (4).
8. The water outlet device according to claim 1, characterized in that: The infrared sensor (300) is positioned adjacent to the capacitive touch switch (200), and its sensing range is configured to be the range of motion of a human hand touching the capacitive touch switch (200).
9. The water outlet device according to claim 8, characterized in that: The water outlet device body (100) is a faucet body (1) or a top spray shower body (3).
10. The water outlet device according to claim 2, characterized in that: The controller (500) is used to control the switch valve (400) to close. The controller (500) is configured to control the switch valve (400) to close after the sensing signal triggered by the infrared sensor (300) disappears for a period of time, so that the water outlet device body (100) shuts off the water.