Humidifier
By integrating a water level sensor and control valve into the humidifier, automatic water filling is achieved, solving the problems of limited water tank capacity and inconvenience in adding water, thus improving ease of use and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGBO DEYE DAILY APPLIANCE TECH CO LTD
- Filing Date
- 2025-07-09
- Publication Date
- 2026-06-26
AI Technical Summary
Common household humidifiers have limited water tank capacity, requiring frequent refilling, and the refilling process often results in water splashing out, leading to a poor user experience.
Design a humidifier with a water level sensor and a control valve to enable direct connection to an external water source and automatic water filling. The valve will automatically close based on the water level, avoiding manual water filling and overflow.
It achieves automatic water filling, reduces manual operation, improves the convenience and safety of use, and prevents the risk of overflow during the water filling process.
Smart Images

Figure CN224415297U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of humidification equipment technology, and in particular to a humidifier. Background Technology
[0002] As people's demands for comfort in their living and working environments continue to increase, humidifiers, especially large-capacity humidifiers that can run continuously for long periods of time, are being used more and more widely in homes, offices, supermarkets and other settings.
[0003] Common types of household humidifiers typically have small water tank capacities. Users need to remove the water tank from the humidifier unit, fill it with water from a water source, and then move it back to the unit. While this is acceptable for small-capacity humidifiers, the limited tank capacity necessitates frequent refills, making it unsuitable for long-term, uninterrupted humidification. Furthermore, the process of moving and inverting the tank during refilling can easily cause water to splash out, wetting the floor or the unit, resulting in a poor user experience. Utility Model Content
[0004] To address the aforementioned problems, this application provides a humidifier that avoids the cumbersome and inconvenient process of manually adding water.
[0005] To achieve the above objectives, the humidifier designed in this application includes a controller, a water tank, and a water level sensor for detecting the water level in the water tank. A water inlet is provided on the side or top wall of the water tank, and a water nozzle connector for connecting to an external water pipe is installed inside the water inlet. A control valve is installed in the water inlet channel of the water nozzle connector. Both the water level sensor and the control valve are electrically connected to the controller. When the water level sensor detects that the water level in the water tank has reached a preset height, the controller controls the control valve to close the water inlet channel.
[0006] Preferably, the water inlet is located in the upper part of the water tank, and the height of the water inlet is above the location of the water level sensor.
[0007] Preferably, the faucet connector is inclined relative to the vertical direction and the water inlet end of the faucet connector is inclined in a direction away from the inside of the water tank.
[0008] Preferably, the controller is electrically connected to a prompting device. When the water level sensor detects that the water level in the tank has reached a preset height, the controller controls the prompting device to issue a prompt signal.
[0009] Preferably, the prompting device includes a buzzer and / or an indicator light.
[0010] Preferably, the controller is also electrically connected to a wireless communication module, which is used to send water level status information in the water tank to an external mobile terminal.
[0011] Preferably, the faucet connector is a quick-connect structure, including a plug and a snap-fit sleeve that engages with the plug.
[0012] Preferably, the control valve is a solenoid valve, which includes a valve body, a valve core disposed in the valve body, and an electromagnetic coil for driving the valve core to move.
[0013] Preferably, the water level sensor is a float-type water level sensor or a capacitive water level sensor.
[0014] Preferably, the humidifier is equipped with casters at the bottom.
[0015] The humidifier designed in this application integrates a water inlet, control valve, and water level sensor on the water tank, enabling direct connection to an external water source and automatic water filling. This avoids frequent manual water filling operations. Furthermore, real-time water level monitoring and automatic valve closure effectively prevent the risk of overflow during water filling and improve the safety of use. Attached Figure Description
[0016] Figure 1 This is a cross-sectional view of the humidifier provided in the embodiment of this application.
[0017] The components include: humidifier 10, casters 11, water tank 20, water level sensor 30, water tap connector 40, and control valve 41. Detailed Implementation
[0018] The preferred embodiments of this application are described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit this application.
[0019] like Figure 1 As shown, the humidifier 10 described in this embodiment mainly includes a controller, a water tank 20, a water level sensor 30, a water tap connector 40 for connecting to an external water source, and a control valve 41. In this embodiment, the controller 20 can be a PCB main control board with an integrated microcontroller, which is installed inside the body of the humidifier 10.
[0020] Specifically, the water level sensor 30 is electrically connected to the controller and is installed inside the water tank 2 to detect the water level height inside the water tank 20. The water level sensor 30 can be a float-type water level sensor, a capacitive water level sensor, or an infrared photoelectric sensor.
[0021] A water inlet is provided on the side or top wall of the water tank 20. A faucet connector 40 is disposed inside the water inlet and connected to an external water pipe. A control valve 41 is disposed inside the water inlet channel of the faucet connector 40 and electrically connected to the controller. In this embodiment, the control valve 41 is a solenoid valve, which includes a valve body, a valve core disposed inside the valve body, and an electromagnetic coil for driving the valve core to move. The controller drives the valve core to move by controlling the energization and de-energization of the electromagnetic coil, thereby quickly opening or closing the water inlet channel. The faucet connector 40 is connected to a faucet through a water pipe, so that water can be automatically dispensed when the faucet is turned on.
[0022] When the water level sensor 30 detects that the water level in the water tank 20 has reached a preset height, the controller controls the control valve 41 to close the water inlet channel. Specifically, when the humidifier 10 is working and the water level drops to a preset lower limit due to evaporation, or when the water level is lower than the preset height in the initial state, the controller will control the control valve 41 to open, and water from the external water source will flow into the water tank 20 through the water inlet connector 40. When the water level sensor 30 detects that the water level has risen and reached the preset maximum safe water level, it will send a signal to the controller. After receiving the signal, the controller will immediately control the control valve 41 to close, thereby interrupting the water inlet. The entire process requires no manual intervention.
[0023] In some embodiments, such as Figure 1 As shown, the water inlet is located in the upper part of the water tank 20, and its height is above the position of the water level sensor 30. This ensures that when the water level sensor 30 detects that the water level is full and triggers the control valve 41 to close, the highest water level in the water tank 20 is still below the lower edge of the water inlet, preventing accidental overflow or leakage that may occur due to user operation or shaking during standby.
[0024] In some embodiments, such as Figure 1 As shown, the faucet connector 40 is inclined relative to the vertical direction, and the water inlet end of the faucet connector 40 is inclined away from the inside of the water tank 20. This design allows users to insert or remove the water pipe into or out of the faucet connector 40 at a more natural and comfortable angle when standing or slightly bending over, improving the user experience and reducing the horizontal space occupied by the whole machine. In this embodiment, the faucet connector 40 is a quick-connect structure, including a plug and a snap-fit sleeve that engages with the plug, making it convenient to use.
[0025] In some embodiments, such as Figure 1 As shown, the controller is electrically connected to a prompting device (not shown). When the water level sensor 30 detects that the water level in the water tank 20 has reached a preset height, the controller controls the prompting device to issue a prompt signal to clearly inform the user that the automatic water filling process is complete. Specifically, the prompting device includes a buzzer and / or an indicator light, providing intuitive auditory or visual cues.
[0026] In some embodiments, such as Figure 1 As shown, the controller is also electrically connected to a wireless communication module, which is used to send water level status information in the water tank 20 to an external mobile terminal. This wireless communication module can be a Wi-Fi module or a Bluetooth module, enabling the humidifier to connect to the internet or establish communication with the user's external mobile terminal (such as a smartphone). Through this wireless communication module, the controller can send water level status information such as "filling water," "full," and "low water alarm" to a dedicated application on the user's mobile phone. In this way, even when the user is not near the device, they can remotely monitor the humidifier's operating status, further enhancing ease of use.
[0027] In some embodiments, such as Figure 1 As shown, casters 11 are installed at the bottom of the humidifier 10. The casters 11 are preferably 360-degree swivel casters to improve the deployment flexibility and ease of use of the product.
[0028] The humidifier provided in this application integrates a water inlet, control valve, and water level sensor on the water tank, enabling direct connection to an external water source and automatic water filling. This avoids frequent manual water filling operations. Furthermore, real-time water level monitoring and automatic valve closure effectively prevent the risk of overflow during water filling and improve the safety of use.
[0029] In the description of this application, it should be noted that the terms "vertical", "up", "down", "horizontal", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not 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, they should not be construed as limitations on this application.
[0030] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.
[0031] Finally, it should be noted that the above descriptions are merely preferred embodiments of this application and are not intended to limit this application. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.
Claims
1. A humidifier comprising a controller, a water tank, and a water level sensor for detecting a water level in the water tank, characterized in that, The water tank has an inlet on its side wall or top wall, and a water inlet is provided with a water tap connector for connecting to an external water pipe. A control valve is provided in the water inlet channel of the water tap connector. The water level sensor and the control valve are both electrically connected to the controller. When the water level sensor detects that the water level in the water tank has reached a preset height, the controller controls the control valve to close the water inlet channel.
2. The humidifier according to claim 1, characterized in that, The water inlet is located in the upper part of the water tank, and the height of the water inlet is above the location of the water level sensor.
3. The humidifier according to claim 1, characterized in that, The faucet connector is inclined relative to the vertical direction, and the water inlet end of the faucet connector is inclined away from the inside of the water tank.
4. The humidifier according to claim 1, characterized in that, The controller is electrically connected to a prompting device. When the water level sensor detects that the water level in the tank has reached a preset height, the controller controls the prompting device to issue a prompt signal.
5. The humidifier according to claim 4, characterized in that, The prompting device includes a buzzer and / or an indicator light.
6. The humidifier according to claim 1, characterized in that, The controller is also electrically connected to a wireless communication module, which is used to send water level information in the water tank to an external mobile terminal.
7. The humidifier according to claim 1, characterized in that, The water tap connector is a quick-connect structure, including a plug and a snap-fit sleeve that engages with the plug.
8. The humidifier according to claim 1, characterized in that, The control valve is a solenoid valve, which includes a valve body, a valve core disposed within the valve body, and an electromagnetic coil for driving the valve core to move.
9. The humidifier according to claim 1, characterized in that, The water level sensor is either a float-type water level sensor or a capacitive water level sensor.
10. The humidifier according to claim 1, characterized in that, The humidifier is equipped with casters at the bottom.