A water dispensing device designed to prevent accidental touches

Abstract

This utility model discloses an anti-accidental touch water dispensing device, comprising a water dispensing device body, a capacitive touch switch, a photosensor, and a controller. The water dispensing device body is equipped with a solenoid valve; when the solenoid valve is open, water dispensing from the device body occurs; when the solenoid valve is closed, water dispensing from the device body stops. The capacitive touch switch is electrically connected to the controller and is configured to be triggered by human touch. The controller is electrically connected to the solenoid valve and controls the solenoid valve to open when the capacitive touch switch is triggered. The photosensor is electrically connected to the capacitive touch switch and only activates the capacitive touch switch when the photosensor is triggered. The photosensor is configured to be triggered when the brightness or color of the light in its sensing area changes to a predetermined range. This effectively prevents accidental water dispensing from the device body due to accidental touch of the capacitive touch switch when the photosensor is not triggered, thereby improving the safety and reliability of the water dispensing device.

Description

Technical Field

[0001] This utility model relates to the technical field of water dispensing devices, and in particular to a water dispensing device that prevents accidental touch. Background Technology

[0002] With the improvement of living standards, touch showerheads have become widely used in people's daily lives due to their intelligence and aesthetics. Touch faucet products are usually capacitive touch switches, which use capacitive sensors and utilize the capacitive characteristics of the human body. When a person touches the switch, the showerhead can be controlled to produce water for showering. 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 can also trigger the switch, resulting in the showerhead turning on and producing water after the user leaves. Utility Model Content

[0003] The purpose of this utility model is to provide a water dispensing device that prevents accidental touch. The technical problem to be solved is to provide a water dispensing device that can avoid accidental touch.

[0004] To achieve the above objectives, the solution of this utility model is as follows: a water dispensing device that prevents accidental touch, comprising a water dispensing device body, a capacitive touch switch, a photosensitive sensor and a controller, wherein a solenoid valve is provided in the water dispensing device body so that water is dispensed from the water dispensing device body when the solenoid valve is opened, and water dispensing from the water dispensing device body stops when the solenoid valve is closed.

[0005] The capacitive touch switch is electrically connected to the controller. The capacitive touch switch is configured to be triggered when touched by a human body. The controller is electrically connected to the solenoid valve and is used to control the opening of the solenoid valve when the capacitive touch switch is triggered.

[0006] The light sensor communicates with the capacitive touch switch, and only after the light sensor is triggered will the capacitive touch switch be in a triggerable state. The light sensor is configured to be triggered when the light brightness or color in its sensing area changes to a predetermined range.

[0007] Furthermore, the light sensor is triggered only when the light intensity in its sensing area changes to a predetermined range, and is configured to be triggered when any part of the human body blocks the sensing area.

[0008] Furthermore, the light sensor is triggered only when the color of its sensing area changes to a predetermined range, and is configured to be triggered when human skin color obscures the sensing area.

[0009] Furthermore, the main body of the water outlet device is a top spray shower head, which also includes a fixed frame that extends vertically. The top spray shower head is located on the top side of the fixed frame and has a downward-facing top spray outlet. A light sensor is located on the fixed frame and faces the human body so that when the human body is below the top spray outlet, the sensing area can be blocked, thus triggering the light sensor.

[0010] Furthermore, the main body of the water outlet is the faucet body, and the light sensor is located on the top side of the faucet outlet so that when a person uses the faucet body, the body part can block the sensing area, causing the light sensor to be triggered.

[0011] Furthermore, the water outlet device is a faucet body, and the light sensor is located on the outer side of the faucet body and below the faucet outlet, so that when a person uses the faucet body, their hand can block the sensing area, triggering the light sensor.

[0012] Furthermore, the light sensor is electrically connected to the controller so that it can communicate with the capacitive touch switch. The controller controls the capacitive touch switch to be powered on only when the light sensor is triggered, so that the capacitive touch switch is in a triggerable state.

[0013] Furthermore, it also includes a switching element, which is electrically connected to the capacitive touch switch and a power source respectively. When the switching element is turned on, the capacitive touch switch is connected to the power source and powered on. When the switching element is turned off, the capacitive touch switch is powered off. The photosensitive sensor is communicatively connected to the switching element. The switching element is turned on only when the photosensitive sensor is triggered, so that the capacitive touch switch is powered on.

[0014] Furthermore, the controller is used to control the solenoid valve to close. The controller is configured to control the solenoid valve to close after a certain period of time has elapsed since the sensing signal triggered by the light sensor is lost, thereby stopping the water outlet device from discharging water.

[0015] After adopting the above solution, the beneficial effects of this utility model are as follows:

[0016] (1) The light sensor and the capacitive touch switch are electrically connected to the controller. The capacitive touch switch can only be triggered when the light sensor is triggered. When the capacitive touch switch is triggered, the controller causes the water outlet device to dispense water. By using the light sensor and the capacitive touch switch together, it is ensured that the capacitive touch switch can only be activated under certain conditions, which reduces the risk of false triggering and the possibility of accidental water dispensing. This makes the device more reliable for users and avoids water loss caused by accidental water dispensing and other possible consequences.

[0017] (2) The conditions for triggering the light sensor can be caused by changes in light or color. It is flexible and widely applicable. Changes in light can be caused by the light source turning on or off, or by the light changing when a person approaches and blocks the light, or by the light changing when the person leaves the light source. It can also be triggered by color changes in a certain area of ​​the human body or color changes in a specific light source. Thus, it can be used for a variety of sensing methods.

[0018] (3) The combination of light sensor and capacitive touch switch can be used in a variety of scenarios. When used indoors, the light sensor can be triggered when the user enters the indoor area and the light sensor can be turned off when the user leaves. When used outdoors, the light sensor can be triggered by the change in light brightness or color caused by the user approaching the water outlet device. The light sensor can be turned off when the user leaves. The application is flexible. Attached Figure Description

[0019] Figure 1 This is one of the connection diagrams of this utility model.

[0020] Figure 2 This is one of the logic block diagrams of this utility model.

[0021] Figure 3 This is another logic block diagram of this utility model.

[0022] Figure 4 This is a schematic diagram of the first sensing range configuration method of this utility model.

[0023] Figure 5 This is a schematic diagram of the second sensing range configuration of this utility model.

[0024] Figure 6 This is a schematic diagram of the third sensing range configuration of this utility model.

[0025] Label Explanation:

[0026] 1-Water outlet device body, 2-Capacitive touch switch, 3-Photosensor, 4-Controller, 5-Solenoid valve, 6-Top spray shower head, 7-Top spray outlet, 8-Faucet body, 9-Faucet outlet. Detailed Implementation

[0027] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0028] Unless otherwise expressly defined, the use of directional terms such as "center," "lateral," "longitudinal," "horizontal," "vertical," "top," "bottom," "inner," "outer," "upper," "lower," "front," "rear," "left," "right," "clockwise," and "counterclockwise" in the claims, description, and accompanying drawings of this utility model is merely for the convenience of describing the 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. Therefore, it should not be construed as limiting the specific protection scope of this utility model.

[0029] like Figure 1-6As shown, this utility model provides an anti-accidental touch sensing water dispensing device, including a water dispensing device body 1, a capacitive touch switch 2, a photosensitive sensor 3, and a controller 4. The water dispensing device body 1 can be any device capable of dispensing water, such as a faucet, a shower head, etc., without specific limitations. The water dispensing device body 1 has a water outlet and a water inlet, and a water flow channel is formed inside it. The two ends of the water flow channel are respectively connected to the water outlet and the water inlet, so that the water flowing in from the water inlet can flow out from the water outlet through the water flow channel. The water dispensing device body 1 is equipped with a solenoid valve 5, which is set on the water flow channel. The opening and closing of the solenoid valve 5 realizes the opening and closing of the water flow channel, thereby causing the water dispensing device body 1 to dispense water or stop dispensing water. This is prior art and will not be described in detail.

[0030] In this specific embodiment, the capacitive touch switch 2 is electrically connected to the controller 4. The capacitive touch switch 2 is configured to be triggered when touched by a human body. The controller 4 is used to control the solenoid valve 5 to open when the capacitive touch switch 2 is triggered, so that water is discharged from the water outlet device body 1. The capacitive touch switch 2 can be any kind of electronic switch that is triggered by a change in capacitance, such as a single-point touch-controlled capacitive switch. When triggered, it can send a touch sensing signal to the controller 4.

[0031] In this specific embodiment, the light sensor 3 is configured to be triggered when the brightness or color of the light in its sensing area changes to a predetermined range. The light sensor 3 is communicatively connected to the capacitive touch switch 2, which can be wireless or wired. The capacitive touch switch 2 is only in a triggerable state when the light sensor 3 is triggered, to avoid accidental touch of the capacitive touch switch 2 when the light sensor 3 is not triggered. The light sensor 3 can be triggered by sensing a change in light intensity to a predetermined range through a photoelectric sensor. The change in light intensity can be caused by the change in light intensity generated when a human body approaches the water dispensing device 1, or it can be caused by the light at the water dispensing device 1. The light sensor 3 can be used in various scenarios due to variations in brightness. For example, when a light source is installed at the water outlet device 1, the light sensor 3 is triggered when the light source is turned on. Alternatively, it can be triggered at night when indoor lights are turned on, and the light sensor 3 is in an untriggered state when the indoor lights are turned off. In addition, the light sensor 3 can also be triggered by sensing color changes through a color sensor. The color change can be triggered when the sensing area detects human skin color or other specific colors when a human body approaches, or it can be triggered when different colored light sources are turned on. There are no specific limitations, and those skilled in the art can design it according to specific circumstances.

[0032] In this specific embodiment, there are many ways to configure the capacitive touch switch 2 to be in a triggerable state. It can be achieved by controlling the power supply to the capacitive touch switch 2, thus connecting or disconnecting it from the power source. Alternatively, it can be achieved by setting a signal blocker, controlling whether or not to receive touch signals sent by the capacitive touch switch 2. When the capacitive touch switch 2 is in a triggerable state (powered state), there are several ways to trigger it using the light sensor 3. One such way is... Figure 1 As shown, the photosensitive sensor 3 is electrically connected to the controller 4, thus enabling communication with the capacitive touch switch 2 via the controller 4. The controller 4 is configured to energize the capacitive touch switch 2 only when the photosensitive sensor 3 is triggered, putting the capacitive touch switch 2 into a triggerable state. Specifically, the controller 4 can be a microcontroller (MCU), with the capacitive touch switch 2 and the photosensitive sensor 3 connected to different input pins of the MCU, and a pre-edited logic control program input into the microcontroller to control the energization of the capacitive touch switch 2 according to the predetermined program. Alternatively, an electromagnetic relay can be used, with one end of the electromagnetic relay coil connected to a digital output pin of the MCU and the other end grounded. The normally open contact of the electromagnetic relay is connected to one port of the capacitive touch switch 2, the other port of the capacitive touch switch 2 is connected to the power supply, and the common contact of the electromagnetic relay is connected to another digital input pin of the MCU. In this way, after receiving the sensing signal from the photosensitive sensor 3, the controller 4 controls the electromagnetic relay to close, energizing the capacitive touch switch 2. Figure 2 As shown, the logic control process is as follows: only when the light sensor 3 is triggered, the light sensor 3 sends a sensing signal to the controller 4. After receiving the sensing signal, the controller 4 sends a control signal to put the capacitive touch switch 2 into the triggered state. Then, when a human touches the capacitive touch switch 2, the capacitive touch switch 2 is triggered, and the capacitive touch switch 2 sends a touch signal to the controller 4. After receiving the touch signal, the controller 4 controls the solenoid valve 5 to open, so that the water outlet device 1 can dispense water. After the human has finished using the water outlet device and leaves, the light sensor 3 cannot be triggered. After this state is maintained for a period of time, the controller 4 controls the solenoid valve to close, so that the water outlet device 1 stops dispensing water. Of course, it is also possible for the human to touch the capacitive touch switch 2 again, and after the controller 4 receives the touch signal again, it will shut off the water dispensing.

[0033] Furthermore, the method of energizing the capacitive touch switch 2 by triggering the photosensitive sensor 3 can also include a switching element (not shown in the figure). The switching element is electrically connected to both the capacitive touch switch 2 and a power supply. When the switching element is on, the capacitive touch switch 2 is energized by the power supply; when the switching element is off, the capacitive touch switch 2 is de-energized. The photosensitive sensor 3 is communicatively connected to the switching element, and the switching element is only activated when the photosensitive sensor 3 is triggered, energizing the capacitive touch switch 2. The switching element can be a transistor or a MOSFET; this is existing technology and will not be elaborated upon. Figure 3 As shown, the logic control process is as follows: the switching element is turned on only when the light sensor 3 is triggered, so that the capacitive touch switch 2 is in the triggered state. Then, when a human touches the capacitive touch switch 2, the capacitive touch switch 2 is triggered. The capacitive touch switch 2 sends a touch signal to the controller 4. After receiving the touch signal, the controller 4 controls the solenoid valve 5 to open, so that the water outlet device body 1 can dissipate water.

[0034] In this specific embodiment, the controller 4 is also used to control the solenoid valve 5 to close. The controller 4 is configured to control the solenoid valve 5 to close after the sensing signal triggered by the light sensor 3 disappears for a period of time, which can be set to 2S to 8S, and can also be set according to specific circumstances, so that the water outlet device body 1 stops discharging water.

[0035] It also includes a power supply, which supplies power to the light sensor 3, capacitive touch switch 2, controller 4 and solenoid valve 5. The power supply can be an externally connected power source or a battery, etc.

[0036] In this specific embodiment, the light sensor 3 is triggered only when the light brightness in its sensing area changes to a predetermined range, and is configured to be triggered when any part of the human body blocks the sensing area. Specifically, the light sensor 3 is a photoelectric sensor, and the predetermined range is a predetermined threshold range. The predetermined threshold range can be set to a light brightness decrease of 30% to 70%. Specifically, it can be an existing photoelectric sensor with a predetermined threshold range, such as a photoelectric sensor with a comparator built into a fixed reference voltage value, or the MCU can have a predetermined threshold range set. After receiving the touch signal from the photoelectric sensor, a threshold comparison is performed. When the light brightness is below the predetermined threshold range (this is prior art and will not be specifically described), when the human body approaches the water dispensing device body 1, it will cause a change in the light brightness in the area where the water dispensing device body 1 is located. When the light brightness change is below the threshold, it indicates that the human body has approached and blocked the light sensor 3, which is set as the trigger condition for the light sensor 3. After the human body leaves the water dispensing device body 1, the light brightness changes again, and the light brightness change is higher than the threshold. The light sensor 3 is no longer blocked and is set to a non-triggering state. Of course, in other embodiments, the light brightness change can also be triggered by turning the light source on and off as described above.

[0037] In this specific embodiment, the light sensor 3 can also be triggered only when the color of its sensing area changes to a predetermined range, and is configured to be triggered when the human skin color obscures the sensing area. Specifically, the light sensor 3 is a color sensor.

[0038] Key points combined Figure 4 As shown, the main body 1 of the water outlet device is a top spray shower head 6, which also includes a fixed frame that extends vertically. The top spray shower head 6 is located on the top side of the fixed frame and has a downward-facing top spray outlet 7. A light sensor 3 is located on the fixed frame and faces the human body so that when the human body is below the top spray shower head 6, it can block the sensing area, triggering the light sensor 3. In use, when the human body approaches the top spray shower head 6, the light in the sensing area of ​​the light sensor 3 dims. Specifically, this can be due to any part of the body blocking the light sensor 3, causing a change in light, or the light sensor 3 sensing the human skin color, triggering the light sensor 3 to touch the capacitive touch switch 2, and the top spray shower head 6 will spray water.

[0039] Key points combined Figure 5 As shown, the main body 1 of the water dispensing device is a faucet body 8. A faucet outlet 9 is provided on the bottom side of the faucet body 8. A light sensor 3 is provided on the faucet body 8 and located below the faucet outlet 9. The light sensor 3 is configured to be triggered when the hand moves below the faucet outlet 9. When the human body uses the main body of the water dispensing device, the hand can block the sensing area, so that the light in the sensing area of ​​the light sensor 3 changes to a predetermined range, or the skin color of the hand blocks the sensing area, so that the light sensor 3 is triggered.

[0040] Key points combined Figure 6 As shown, when the main body 1 of the water outlet device is the faucet body 8, the light sensor 3 is located on the top side of the faucet outlet 9. The light sensor 3 is configured to be triggered when the hand moves to the faucet outlet 9. When in use, when the human hand approaches the faucet outlet 9, since the light sensor 3 is located in front of the faucet outlet 9, when the hand is at the faucet outlet 9, the arm or upper part of the body blocks the sensing area, making the light darken, or the light sensor 3 senses the human skin color, the light sensor 3 is triggered, touches the capacitive touch switch 2, and water flows out of the faucet outlet 9.

[0041] In other embodiments, the light sensor 3 can also be set in other positions on the faucet body 8, such as the front end of the faucet body 8, or the side closer to the human body, etc., which will not be described in detail. Those skilled in the art can set it according to the specific situation.

[0042] The above description is only a preferred embodiment of this utility model and is not intended to limit 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 dispensing device designed to prevent accidental touch, characterized in that: The device includes a water outlet body (1), a capacitive touch switch (2), a light sensor (3) and a controller (4). A solenoid valve (5) is installed inside the water outlet body (1) so that when the solenoid valve (5) is opened, the water outlet body (1) dispenses water, and when the solenoid valve (5) is closed, the water outlet body (1) stops dispensing water. The capacitive touch switch (2) is electrically connected to the controller (4). The capacitive touch switch (2) is configured to be triggered when touched by a human body. The controller (4) is electrically connected to the solenoid valve (5) to control the solenoid valve (5) to open when the capacitive touch switch (2) is triggered. The light sensor (3) is connected to the capacitive touch switch (2) and the capacitive touch switch (2) is put into a triggerable state only after the light sensor (3) is triggered. The light sensor (3) is configured to be triggered when the light brightness or color of its sensing area changes to a predetermined range.

2. The anti-accidental touch water dispensing device according to claim 1, characterized in that: The light sensor (3) is triggered only when the light intensity in its sensing area changes to a predetermined range, and is configured to be triggered when any part of the human body blocks the sensing area.

3. The anti-accidental touch water dispensing device according to claim 1, characterized in that: The light sensor (3) is triggered only when the color of its sensing area changes to a predetermined range, and is configured to be triggered when the human skin color obscures the sensing area.

4. The anti-accidental touch water dispensing device according to claim 2, characterized in that: The main body (1) of the water outlet device is a top spray shower (6), and also includes a fixed frame. The fixed frame extends vertically, the top spray shower (6) is set on the top side of the fixed frame, and has a top spray outlet (7) that sprays water downward. The light sensor (3) is set on the fixed frame and faces the human body so that when the human body is below the top spray outlet (7), the sensing area can be blocked, so that the light sensor (3) is triggered.

5. The anti-accidental touch water dispensing device according to claim 2, characterized in that: The main body (1) of the water outlet device is the faucet body (8), and the light sensor (3) is set on the top side of the faucet outlet (9) so that when the human body uses the faucet body (8), the body part can block the sensing area so that the light sensor (3) is triggered.

6. The anti-accidental touch water dispensing device according to claim 2 or 3, characterized in that: The main body (1) of the water outlet device is the faucet body (8). The light sensor (3) is set on the outer side of the faucet body (8) and located below the faucet outlet (9) so that when the human body uses the faucet body (8), the hand can block the sensing area and trigger the light sensor (3).

7. The anti-accidental touch water dispensing device according to claim 1, characterized in that: The light sensor (3) is electrically connected to the controller (4) and is communicatively connected to the capacitive touch switch (2). The controller (4) is used to control the capacitive touch switch (2) to be powered on only when the light sensor (3) is triggered, so that the capacitive touch switch (2) is in a triggerable state.

8. The anti-accidental touch water dispensing device according to claim 1, characterized in that: It also includes a switching element, which is electrically connected to the capacitive touch switch (2) and a power source respectively. When the switching element is turned on, the capacitive touch switch (2) is connected to the power source and powered on. When the switching element is turned off, the capacitive touch switch (2) is de-energized. The photosensitive sensor (3) is connected to the switching element. The switching element is turned on only when the photosensitive sensor (3) is triggered, so that the capacitive touch switch (2) is powered on.

9. The anti-accidental touch water dispensing device according to claim 1, characterized in that: The controller (4) is used to control the solenoid valve (5) to close. The controller (4) is configured to control the solenoid valve (5) to close after the sensing signal triggered by the light sensor (3) disappears for a period of time, so that the water outlet device body (1) stops discharging water.

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