A false alarm prevention humidifier

Abstract

The utility model discloses a false alarm prevention humidifier belongs to humidifier field, has solved the problem of fault false report among the prior art, the technical scheme that solves this problem includes the body with atomizing cavity, and the body still includes controller, current detection device, control switch and communication module, and current detection device sets up in the power supply circuit of atomizer, is used for detecting the working current of atomizer, and control switch is connected in the power supply circuit of atomizer, is used for controlling the on-off of power supply circuit, and the input of controller is connected with current detection device, and the output of controller is connected with control switch and communication module, and is equipped with the protection circuit for triggering automatic restart when detecting current is lower than setting threshold value in the controller, and is configured as still detecting low current after restart, and the communication module is outputted to external mobile terminal through communication module alarm signal to outside mobile terminal to the failure, and control switch is opened power supply circuit. The utility model reduces false report.

Description

Technical Field

[0001] This utility model relates to the field of humidifiers, and in particular to a humidifier that prevents false alarms. Background Technology

[0002] In various settings such as pharmaceutical warehousing, archive and library paper document preservation, museum artifact management, data center server room operation environment control, and agricultural greenhouse cultivation, strict requirements for environmental temperature and humidity necessitate the use of humidification equipment to maintain suitable conditions. Currently, atomizing humidifiers are widely used in these locations to achieve efficient and uniform humidification. To ensure stable equipment operation, existing technologies typically include fault detection devices that trigger alarms when anomalies occur, alerting maintenance personnel for timely intervention. However, due to factors such as dust, high humidity, electrostatic interference, water quality changes, and instantaneous mechanical fluctuations in the actual working environment, humidifier sensors or detection circuits often misjudge, leading to frequent false alarms. Such false alarms not only cause maintenance personnel to repeatedly and ineffectively report incidents, wasting manpower and time, but may also delay responses to real faults, reduce system reliability, and even cause users to lose trust in the alarm system, seriously affecting the environmental stability and operational efficiency of critical locations. Utility Model Content

[0003] The purpose of this invention is to provide a humidifier that prevents false alarms, thereby solving the problem of false alarms in the prior art and reducing false alarms.

[0004] To achieve the above objectives, this utility model adopts the following technical solution: a false alarm humidifier, comprising a body having an atomizing chamber, wherein the atomizing chamber is equipped with an atomizer, the body having an air inlet, a mist outlet, a water inlet, a water outlet, and an overflow outlet communicating with the atomizing chamber, the air inlet being equipped with a fan, the body further comprising a controller, a current detection device, a control switch, and a communication module, the current detection device being disposed in the power supply circuit of the atomizer for detecting the operating current of the atomizer, the control switch being connected in series in the power supply circuit of the atomizer for controlling the on / off state of the power supply circuit, the input terminal of the controller being connected to the current detection device, the output terminal of the controller being connected to the control switch and the communication module, and the controller having a protection circuit for triggering automatic restart when the detected current is lower than a set threshold.

[0005] By adopting the above technical solution, this utility model has the following advantages: By setting a current detection device in the power supply circuit of the atomizer, the changes in its operating current are monitored in real time, serving as the core basis for judging the operating status of the device. Since the atomizer needs to maintain a stable power input during normal operation, its operating current is closely related to the load status. Once dry burning, scaling of the atomizing plate, electrode aging, or abnormality of the drive circuit occurs, the load capacity decreases, and the operating current will decrease significantly. Therefore, monitoring current changes can directly and sensitively reflect the internal physical and electrical state of the atomizer. The controller judges the low current signal through its built-in protection circuit, without immediately triggering an alarm. When the detected current is lower than the set threshold, it triggers an automatic restart. During the restart process, the system is re-powered and initialized, which can eliminate abnormal states caused by temporary electrical interference such as instantaneous voltage drops, static electricity accumulation, control signal disorder, or drive circuit lock-up as much as possible. Most temporary interferences are eliminated after restarting, and the device can resume normal operation. After restarting, a second test is performed. If the current detection device continues to report a low current signal, it indicates that the fault is persistent and unrecoverable, thus determining it as a real fault. The controller then sends an alarm signal through the communication module and cuts off the power supply circuit. This helps improve the accuracy of fault identification, minimizes false alarms caused by temporary interference, ensures the alarm signal is as real and reliable as possible, reduces maintenance costs, and improves the stability of equipment operation.

[0006] Furthermore, the protection circuit is equipped with a timing unit for controlling the time interval between two adjacent restart operations.

[0007] By adopting the aforementioned technical solution and setting a reasonable delay period, sufficient electrical and physical recovery time is ensured after the initial detection of a low current anomaly and the execution of a restart. This time interval allows for the recovery of the undervoltage state caused by a momentary drop in power supply voltage, the full discharge of accumulated static electricity, the reset of control signals, and the release of the drive circuit from temporary lock-up or latch-up states before a second detection is performed. This effectively eliminates these transient effects and minimizes the possibility of them being misjudged as permanent faults.

[0008] Furthermore, the current detection device is a current sensor, a current transformer, a sampling resistor, or a Hall sensor.

[0009] The aforementioned technical solution features a simpler sampling resistor structure, faster response speed, and suitability for low-voltage DC systems; the current transformer offers better isolation, making it suitable for AC power supply scenarios; and the Hall sensor and current sensor enable non-contact measurement, offering high isolation, wide dynamic range, and strong anti-interference capabilities. By providing multiple optional solutions, the applicability and feasibility of this invention are enhanced under different humidifier power supply types, power levels, and cost control requirements, facilitating flexible configuration according to actual applications while ensuring the accuracy and stability of current detection as much as possible.

[0010] Furthermore, the main body also includes a humidity detector for detecting the humidity of the external environment and converting it into an electrical signal to be sent to the controller. The controller controls the start-up, shutdown, and operation status of the atomizer and the fan according to the received humidity signal.

[0011] By adopting the aforementioned technical solution, more precise and independent closed-loop feedback control of the humidification process can be achieved by collecting ambient humidity data in real time. The controller can automatically start and stop the atomizer and fan according to the set humidity threshold or target range, so as to avoid over-humidification or under-humidification as much as possible, thereby ensuring that the ambient humidity is stable within the required range.

[0012] Furthermore, the atomizing chamber is also equipped with a liquid level sensor for detecting the water level of the atomizer and converting it into an electrical signal to be sent to the controller. The water inlet is equipped with a water inlet valve electrically connected to the controller, and the water outlet is equipped with a water outlet valve electrically connected to the controller. The controller controls the opening and closing of the water inlet valve and the water outlet valve according to the received water level signal.

[0013] The above technical solution achieves closed-loop control of water supply and drainage by real-time monitoring of the water level in the atomization chamber. When the water level is too low, the controller opens the inlet valve to replenish water, minimizing the risk of the atomizer burning dry. When the water level is too high or the equipment stops, the drain valve is opened promptly to drain the remaining water, preventing the accumulation of water from breeding bacteria, scaling, or freezing and damaging the equipment in winter.

[0014] Furthermore, the controller is equipped with a timing unit for determining the duration of the abnormal water level signal. When the duration of the abnormal water level signal exceeds a preset threshold, the controller triggers an automatic restart through a protection circuit.

[0015] By introducing a time-based judgment mechanism, the controller no longer triggers actions solely based on instantaneous water level signals, but rather makes a comprehensive judgment based on the duration of the signal. When the duration of an abnormal water level signal does not exceed a preset threshold, it is considered a brief fluctuation or interference, and the system does not activate an alarm. Only when the abnormality persists for more than the set time is it recognized as a real and stable water level fault, which then triggers an automatic restart through the protection circuit. This minimizes misjudgments caused by non-continuous factors such as water inlet delay, water wave disturbance, and instantaneous sensor drift. At the same time, the restart mechanism can cope with temporary water supply interruptions or drainage problems, improving self-recovery capabilities.

[0016] Furthermore, the atomizing chamber is also equipped with a temperature detector for detecting the water temperature of the atomizer and converting it into an electrical signal to be sent to the controller. The controller controls the on / off state of the control switch based on the received water temperature signal.

[0017] By employing the above technical solution, the water temperature inside the atomizing chamber is monitored in real time to prevent abnormal equipment operation caused by excessively high or low water temperatures. When the water temperature exceeds the set upper limit, if overheating occurs due to prolonged operation, the controller will promptly disconnect the control switch and cut off the power supply circuit to minimize the risk of damage to the atomizing plate from overheating, uneven water vaporization, or dry burning. When the water temperature is too low, such as approaching the freezing point, humidification should be prevented from starting to avoid freezing, which could lead to structural damage or atomization failure.

[0018] Furthermore, the main body is provided with an alarm indicator light, the control terminal of which is electrically connected to the output terminal of the controller, so as to illuminate when the controller outputs an alarm signal.

[0019] By using the above technical solution, an intuitive visual prompt device is set on the main body. When the controller confirms a real fault and issues an alarm signal, the indicator light will light up simultaneously, clearly indicating that the humidifier is in an abnormal operating state. This makes it easy for inspection personnel to quickly locate the problematic equipment, which is of great practical value, especially in scenarios where multiple devices are running in parallel or where there is no remote monitoring coverage.

[0020] Furthermore, the alarm indicator light is a multi-color light, and the controller controls the alarm indicator light to display different colors according to the fault type.

[0021] The above technical solution uses color-coded indicators to visually differentiate fault types. For example, red indicates serious faults such as persistent low current, yellow indicates warning issues such as abnormal water levels or excessive temperature, and blue indicates system status such as communication interruptions. During inspections, on-site personnel do not need to read specific data or logs; they can quickly determine the nature of the fault simply by observing the indicator light colors, significantly improving fault identification efficiency and handling accuracy. Compared to single-color indicator lights, multi-color displays provide richer status information, enhance local human-machine interaction capabilities, and are particularly suitable for scenarios without displays or with remote monitoring delays, further improving the convenience and response speed of equipment maintenance.

[0022] Furthermore, the main body is also equipped with a digital tube or display screen to display the working status of the atomizer, and the digital tube or display screen is electrically connected to the controller.

[0023] The above technical solution integrates a visualization display unit onto the main unit, presenting real-time equipment operating information such as current humidity, water level, operating mode, fault codes, and running time. On-site personnel can directly read key parameters without external equipment, facilitating quick understanding of equipment operation and improving the intuitiveness of operation and maintenance. When a fault occurs, the display clearly indicates the specific fault type, such as E1: water shortage, E2: abnormal current, etc. Compared to relying solely on flashing indicator lights or remote alarms, the information is clearer and more accurate, reducing misjudgments and troubleshooting time. Simultaneously, this display function supports the entire process of equipment debugging, parameter setting, and operation monitoring, enhancing human-machine interaction capabilities and improving the system's intelligence level and on-site operation and maintenance efficiency. Attached Figure Description

[0024] The present invention will be further described below with reference to the accompanying drawings:

[0025] Figure 1 This is a schematic diagram of the structure of the humidifier for preventing false alarms in this utility model;

[0026] Figure 2 This is a cross-sectional view of the humidifier for preventing false alarms in this utility model;

[0027] Figure 3 This is the control circuit diagram of the false alarm humidifier in this utility model;

[0028] In the diagram, 10 is the main body; 11 is the atomizing chamber; 12 is the atomizer; 13 is the air inlet; 14 is the fan; 15 is the mist outlet; 16 is the mist outlet pipe; 17 is the liquid level sensor; 171 is the high liquid level sensor; 172 is the low liquid level sensor; 18 is the water inlet; 19 is the water outlet; 20 is the overflow outlet; 21 is the controller; 22 is the temperature sensor; 23 is the humidity detector; 24 is the current transformer; 25 is the water inlet valve; 26 is the drain valve; and 27 is the air inlet channel. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments.

[0030] The terms "first," "second," "third," "fourth," etc. (if present) in the specification, claims, and accompanying drawings of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that embodiments of the utility model described herein can be implemented in orders other than those illustrated or described herein.

[0031] It should be understood that in the various embodiments of this utility model, the number of each process does not imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this utility model.

[0032] It should be understood that in this invention, "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product or device.

[0033] It should be understood that in this utility model, "multiple" refers to two or more. "And / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, X and / or Y can represent: X alone, X and Y simultaneously, or Y alone. The character " / " generally indicates that the preceding and following related objects are in an "or" relationship. "Contains X, Y, and Z", "Contains X, Y, and Z" means that all three X, Y, and Z are contained; "Contains X, Y, or Z" means that one of X, Y, and Z is contained; "Contains X, Y, and / or Z" means that any one, two, or three of X, Y, and Z are contained.

[0034] The technical solution of this utility model will be described in detail below with specific embodiments. The following specific embodiments can be selected to be combined or substituted with each other according to the actual situation, and the same or similar concepts or processes may not be described again in some embodiments.

[0035] like Figures 1 to 3 As shown, this utility model provides a humidifier with false alarm prevention, including a body 10 with an atomizing chamber 11, an atomizer 12 in the atomizing chamber 11, an air inlet 13, a mist outlet 15, a water inlet 18, a water outlet 19, and an overflow outlet 20 communicating with the atomizing chamber 11, the air inlet 13 being equipped with a fan 14, the body 10 also including a controller 21, a current detection device, a control switch, and a communication module, the current detection device being set in the power supply circuit of the atomizer 12 for detecting the operating current of the atomizer 12, the control switch being connected in series in the power supply circuit of the atomizer 12 for controlling the on / off of the power supply circuit, the input terminal of the controller 21 being connected to the current detection device, the output terminal of the controller 21 being connected to the control switch and the communication module, the controller 21 having a protection circuit for triggering automatic restart when the detected current is lower than a set threshold, and configured to output a fault alarm signal to an external mobile terminal through the communication module and control the control switch to disconnect the power supply circuit when a low current is still detected after restarting.

[0036] A current detection device is installed in the power supply circuit of atomizer 12 to monitor its operating current changes in real time, serving as the core basis for judging the device's operating status. Since atomizer 12 needs to maintain a stable power input during normal operation, its operating current is closely related to the load condition. If dry burning, scaling of the atomizing plate, electrode aging, or abnormal drive circuit occurs, the load capacity decreases, and the operating current will drop significantly. Therefore, monitoring current changes can directly and sensitively reflect the internal physical and electrical state of atomizer 12. Controller 21 uses a built-in protection circuit to judge low current signals, without immediately triggering an alarm. When the detected current falls below a set threshold, it triggers an automatic restart. During the restart process, the system is powered on again and initialized, minimizing abnormal states caused by temporary electrical interference such as instantaneous voltage drops, static electricity accumulation, control signal malfunctions, or drive circuit lock-up. Most temporary interferences are eliminated after restarting, and the device can resume normal operation. After restarting, a second test is performed. If the current detection device continues to report a low current signal, it indicates that the fault is persistent and unrecoverable, thus determining it as a real fault. The controller 21 sends an alarm signal through the communication module and cuts off the power supply circuit. This helps improve the accuracy of fault identification, avoids false alarms caused by temporary interference as much as possible, ensures that the alarm signal is real and reliable, reduces maintenance costs, and improves the stability of equipment operation.

[0037] It should be noted that the overflow outlet 20 remains open. The atomizer 12 includes an ultrasonic atomizing plate, which can be set to one or more depending on humidification needs to adjust the atomization volume. The fan 14 is driven by a low-power, high-efficiency motor, such as a DC motor with a rated power of 15W, which can provide stable and continuous airflow power with low energy consumption. In particular, compared with the existing technology that uses a large 1.1KW fan built into the air conditioner for humidification, the energy-saving effect is more significant. Moreover, when using a large fan for humidification, the air volume of the ultrasonic humidifier will be too large. The high-speed airflow will cause the newly generated tiny mist droplets to collide violently and coalesce, forming larger water droplets. These water droplets cannot be effectively suspended and diffused. They will not only spray out from the mist outlet 15 and drip onto goods or air conditioning equipment, causing pollution, corrosion, or water accumulation, but also reduce the actual mist output, significantly decrease the humidification efficiency, and affect the use effect. The humidifier uses purified water as its source, which is introduced into the atomizing chamber 11 through the water inlet 18. Under the high-frequency vibration of the ultrasonic atomizing plate, the purified water is broken into extremely fine mist particles with a particle size of 1 to 5 micrometers. These tiny mist particles are rapidly diffused by the airflow introduced by the fan 14 and delivered to the external environment through the mist outlet 15, achieving a highly efficient and clean humidification effect.

[0038] It should be noted that in this solution, the humidifier and the air conditioning unit are integrated into the same housing to form an integrated structure. The mist outlet 15 is connected to the mist outlet pipe 16. The mist outlet pipe 16 includes an inlet connected to the mist outlet 15 and an outlet connected to the external environment. The mist outlet pipe 16 is inclined upward from the mist outlet 15, that is, the outlet is higher than the inlet, so that the condensate of the mist outlet pipe 16 can flow back to the atomization chamber 11 under the action of gravity, and the condensate is recycled and reused. This significantly reduces the water waste caused by condensate drainage in traditional humidification methods, realizes the closed-loop utilization of water resources, greatly improves the water efficiency of the humidification process, and has outstanding water-saving benefits.

[0039] It should be noted that, in one embodiment, the air inlet 13 is connected to the external environment through an air inlet channel 27. A fan 14 is disposed within the air inlet channel 27. Air is driven by the fan 14 and enters the atomizing chamber 11 through the air inlet channel 27 and the air inlet 13. The air inlet channel 27 guides the airflow, reducing flow resistance and improving air intake efficiency. In another embodiment, the air inlet is directly connected to the external environment, and the fan is located within the air inlet. Air is driven by the fan and enters the atomizing chamber from the air inlet. This structure simplifies the duct design and helps to reduce the size of the equipment.

[0040] The current detection device is a current transformer 24, which is installed in the power supply circuit of the atomizer 12. It uses the principle of electromagnetic induction to achieve non-contact detection of the operating current. Specifically, the wire of the power supply circuit passes through the center of the magnetic core of the current transformer 24, serving as the primary winding. When the operating current of the atomizer 12 passes through this circuit, an alternating magnetic field is generated in the magnetic core, which in turn induces a secondary current in the secondary winding of the current transformer 24 that is proportional to the primary current. This secondary current is converted into a voltage signal by a sampling resistor and then input to the controller 21. The controller 21 can calculate the actual operating current of the atomizer 12 by detecting the magnitude of this voltage signal. Because the current transformer 24 provides electrical isolation between the detection circuit and the power supply circuit, it minimizes the impact of high-voltage interference, common-mode noise, or grounding problems on the control system, improving the stability of signal acquisition and system safety. At the same time, this method does not require additional series resistors in the power supply circuit, does not generate additional power consumption, and has a rapid response and high linearity, accurately reflecting load changes and providing a reliable basis for subsequent low-current anomaly identification and false alarm prevention control.

[0041] It should be noted that the protection circuit is integrated inside the controller 21, including a signal comparison module, a restart counter module, and a fault determination module. The signal comparison module receives feedback signals from the current detection device and compares them with a preset threshold. When the detected operating current is lower than the set value, an anomaly determination is triggered. The restart counter module records the number of restarts after an anomaly occurs and controls the automatic restart operation. If a low current signal is still detected after at least two consecutive restarts, the fault determination module confirms a persistent fault, generates a fault alarm command, and controls the power supply circuit to disconnect. Through the coordinated operation of these modules, automatic reset of abnormal states and accurate identification of actual faults are achieved, improving the stability and reliability of system operation.

[0042] The protection circuit includes a timing unit to control the time interval between two consecutive restart operations. By setting a reasonable delay period, it ensures that the system has sufficient electrical and physical recovery time after the initial detection of a low current anomaly and the execution of a restart. This time interval allows for the recovery of undervoltage conditions caused by a momentary drop in power supply voltage, sufficient discharge of accumulated static electricity, reset of control signals, and release of the drive circuit from temporary lock-up or latch-up states before a second detection is performed. This effectively eliminates these transient effects and minimizes the possibility of misdiagnosing them as permanent faults. Only if a low current is still detected at this point can it be determined as a persistent fault that cannot be recovered from by a restart.

[0043] Furthermore, the main body 10 also includes a humidity detector 23 for detecting the external ambient humidity and converting it into an electrical signal to be sent to the controller 21. The controller 21 controls the start-up and shutdown and operation status of the atomizer 12 and the fan 14 based on the received humidity signal. By collecting ambient humidity data in real time, a more precise and independent closed-loop feedback control of the humidification process is achieved. The controller 21 can automatically start and stop the atomizer 12 and the fan 14 according to the set humidity threshold or target range, so as to avoid over-humidification or under-humidification as much as possible, thereby ensuring that the ambient humidity is stable within the required range, improving environmental comfort and the stability of the production process.

[0044] Furthermore, the atomizing chamber 11 is also equipped with a liquid level sensor 17 for detecting the water level of the atomizer 12 and converting it into an electrical signal to be sent to the controller 21. The water inlet 18 is equipped with a water inlet valve 25 electrically connected to the controller 21, and the water outlet 19 is equipped with a drain valve 26 electrically connected to the controller 21. The controller 21 controls the opening and closing of the water inlet valve 25 and the drain valve 26 according to the received water level signal. When the water level in the atomizing chamber 11 is lower than the set lower limit, the controller 21 opens the water inlet valve 25 to replenish water into the atomizing chamber 11, so as to prevent the atomizer 12 from burning dry due to lack of water as much as possible. When the water level in the atomizing chamber 11 reaches the set upper limit, the controller 21 closes the water inlet valve 25 to stop water intake. When the water level rises abnormally and exceeds the safety upper limit, for example, when the water inlet valve 25 cannot be closed due to malfunction, in addition to draining water through the overflow port 20, the controller 21 can also activate the drain valve 26 to drain excess water, so as to prevent overflow or equipment damage as much as possible and realize the safety protection function. In addition, when the equipment is shut down, under maintenance or cleaning conditions, the controller 21 can actively open the drain valve 26 to drain the water stored in the atomizing chamber 11, so as to prevent bacterial growth, scale deposition, or damage to the equipment due to freezing in low temperature environments.

[0045] Furthermore, the controller 21 is equipped with a timing unit for determining the duration of abnormal water level signals. When the duration of the abnormal water level signal exceeds a preset threshold, the controller 21 triggers an automatic restart via the protection circuit. By introducing a time-dimensional judgment mechanism, the controller 21 no longer triggers actions solely based on instantaneous water level signals, but rather makes a comprehensive judgment based on the duration. When the duration of the abnormal water level signal does not exceed the preset threshold, it is considered a brief fluctuation or interference, and the protection circuit does not restart. Only when the abnormality lasts for more than the set time is it recognized as a real and stable water level fault, and then an automatic restart is triggered via the protection circuit. This minimizes the possibility of misjudgments caused by non-continuous factors such as water inlet delay, water wave disturbance, and instantaneous sensor drift. At the same time, the restart mechanism can cope with temporary water supply interruptions or drainage problems, improving self-recovery capabilities.

[0046] Furthermore, the atomizing chamber 11 is also equipped with a temperature detector for detecting the water temperature of the atomizer 12 and converting it into an electrical signal, which is then sent to the controller 21. The controller 21 controls the on / off state of the control switch based on the received water temperature signal. This is to prevent abnormal operation of the equipment due to excessively high or low water temperatures. When the water temperature exceeds the set upper limit, such as due to overheating caused by prolonged operation, the controller 21 promptly disconnects the control switch, cutting off the power supply circuit, to avoid damage to the atomizing plate from overheating, uneven water vaporization, or the risk of dry burning. When the water temperature is too low, such as approaching the freezing point, the controller prevents the humidification from starting, thereby avoiding structural damage or atomization failure caused by freezing.

[0047] To facilitate timely location of faulty equipment by inspection personnel, an alarm indicator light is provided on the main body 10. The control terminal of the alarm indicator light is electrically connected to the output terminal of the controller 21 so that it illuminates when the controller 21 outputs an alarm signal. When the controller 21 confirms a real fault and issues an alarm signal, the indicator light illuminates simultaneously, clearly indicating that the humidifier is in an abnormal operating state. This makes it easier for inspection personnel to quickly locate faulty equipment, which is of great practical value, especially in scenarios where multiple devices are operating in parallel or where there is no remote monitoring coverage.

[0048] Because the humidifier has multiple fault detection functions, the alarm indicator lights are multi-colored to facilitate quick differentiation of various faults. The controller 21 controls the alarm indicator lights to display different colors according to the fault type. This color differentiation enables visual differentiation of fault types. For example, red indicates serious faults such as continuous low current, yellow indicates warning issues such as abnormal water level or excessive temperature, and blue indicates system status such as communication interruption. During inspections, on-site personnel do not need to read specific data or logs; they can quickly determine the nature of the fault simply by observing the indicator light colors, significantly improving fault identification efficiency and handling accuracy. Compared to single-color indicator lights, multi-color displays provide richer status information, enhance local human-machine interaction capabilities, and are especially suitable for scenarios without displays or with remote monitoring delays, further improving the convenience and response speed of equipment maintenance.

[0049] The humidifier's water tank is equipped with two sets of liquid level sensors 17: a high-level sensor 171 and a low-level sensor 172, used to detect high and low water levels respectively. The high water level is set to, for example, 9cm, and the low water level to, for example, 6cm, allowing real-time monitoring of water level changes in the atomizing chamber 11. The water supply pipe connects the water source to the inlet 18. Both the inlet valve 25 and the drain valve 26 are solenoid valves, automatically controlled by the controller 21 based on the water level signal.

[0050] The system's operating logic is as follows:

[0051] After the equipment is powered on, the fan 14 starts running first. When there is a humidification requirement, the controller 21 opens the water inlet valve 25 to start replenishing water. When the water level in the atomizing chamber 11 rises to between the low level sensor 172 and the high level sensor 171, for example, 8cm, the water inlet valve 25 closes to stop replenishing water, and the atomizer 12 starts working at the same time.

[0052] During atomization, the water level gradually decreases. When the water level drops to the lower limit, such as 6cm, the low-level sensor 172 detects the low water level, and the controller 21 controls the water inlet valve 25 to reopen to replenish water, maintaining the water level within a reasonable range of 7cm to 8cm. During this process, the atomizer 12 continues to operate to ensure that the atomization surface always has an appropriate amount of water for stable humidification, while avoiding excessive water replenishment and water waste as much as possible.

[0053] When the low water level sensor 172 detects a low water level and the inlet valve 25 is open, the timing unit starts timing. If the water level does not rise for more than 5 minutes, a low water level alarm is triggered, and the controller 21 determines that the water supply is abnormal or the water source is interrupted. Subsequently, the controller 21 performs an automatic restart operation through the protection circuit. If the low water level sensor 172 still detects a low water level after restarting, the atomizer 12 completely stops working.

[0054] Similarly, after the high-level sensor 171 detects a high water level signal, the controller closes the inlet valve 25 and drains water through the overflow port 20. When the water level returns to the normal range, the fault is automatically cleared and the system returns to normal operation. If the high-level sensor 171 is continuously triggered for more than a set time, such as one minute, the controller 21 determines that the water level abnormality has not been resolved and triggers an automatic restart through the protection circuit. If the high-level sensor 171 still detects a high water level signal after restarting, the atomizer 12 completely stops working.

[0055] When the humidity detector 23 detects that the humidity of the desired humidification environment has reached the set value, the atomizer 12 first stops working, the fan 14 continues to work for a period of time to dry the internal pipes of the humidifier, and finally the fan 14 stops.

[0056] Temperature monitoring and overheat protection: A temperature sensor 22 is installed inside the atomizing chamber 11 at the bottom of the ultrasonic atomizing plate to monitor the water temperature in real time. During operation, the ultrasonic atomizing plate generates heat, causing the water temperature to rise. For example, when the temperature sensor 22 detects that the water temperature exceeds the set threshold of 55°C, the controller 21 determines that there is an overheating risk, automatically stops the atomization operation, and activates the protection mechanism, causing the atomizer 12 to stop working for a period of time, such as 30 seconds, before attempting to restart. If the water temperature is still above 55°C after restarting, the atomizer 12 will completely stop operating. The set threshold can be set as a single value or a temperature range according to the actual application scenario.

[0057] Current anomaly protection mechanism: Current transformer 24 continuously monitors the operating current of atomizer 12. If the operating current is detected to be lower than the set value for one minute, controller 21 determines that the current is abnormal, triggers the protection circuit to automatically restart, and atomizer 12 stops working. Atomizer 12 restarts again after one minute. If the current transformer 24 still detects that the operating current is lower than the set value after restarting, it outputs a fault alarm signal to the external mobile terminal through the communication module and controls the control switch to disconnect the power supply circuit. If the current detected by current transformer 24 is not lower than the set value after restarting, atomizer 12 resumes normal operation.

[0058] It should be noted that the current anomaly protection mechanism not only triggers an alarm when the atomizer 12 itself malfunctions, but also responds to abnormal signals detected by external sensors such as low water level, high water level, or abnormal water temperature, generating corresponding alarm information to remind maintenance personnel to handle the situation promptly. When the above-mentioned anomalies occur, the device's communication module will immediately send a fault alarm signal to an external mobile terminal, allowing the user to obtain and record the operating status of the atomizer 12 in real time. Considering that some anomalies may be intermittent, the system will not immediately shut down, but will continue to monitor; only when the anomaly persists and becomes the norm, causing the actual operating status of the atomizer 12 to be abnormal, will the current anomaly protection mechanism determine it as a serious fault, thereby cutting off the device's operation and issuing a maintenance prompt. Through this multi-protection and remote communication mechanism, even if the device is deployed in an unattended remote location, efficient and timely remote monitoring and operation and maintenance management can be achieved.

[0059] For troubleshooting, use outlet 19 and drain valve 26 to release the water stored in atomizing chamber 11 and perform maintenance.

[0060] It should be noted that mobile terminals include mobile phones, tablets, laptops, and desktop computers. With technological advancements, other smart devices with information receiving capabilities are also included.

[0061] Understandably, in other embodiments, the current detection device can also be a current sensor, a sampling resistor, or a Hall sensor. Sampling resistors have a simpler structure and faster response speed, making them suitable for humidifiers with low-voltage DC systems. Hall sensors and current sensors enable non-contact measurement, offering high isolation, a wide dynamic range, and strong anti-interference capabilities. By providing multiple options, the applicability and feasibility of this invention are enhanced under different humidifier power supply types, power levels, and cost control requirements, facilitating flexible configuration according to actual applications while ensuring the accuracy and stability of current detection as much as possible.

[0062] Understandably, in other embodiments, the main body also includes a digital tube or display screen to show the atomizer's operating status, which is electrically connected to the controller. By integrating a visualization display unit on the main body, real-time equipment operating information, such as current humidity, water level, operating mode, fault codes, or running time, is presented. On-site personnel can directly read key parameters without the need for external equipment, facilitating a quick understanding of the equipment's operating status and improving the intuitiveness of operation and maintenance. When a fault occurs, the display screen can clearly indicate the specific fault type, such as E1: water shortage, E2: abnormal current, etc. Compared to relying solely on flashing indicator lights or remote alarms, the information is presented more clearly and accurately, reducing misjudgment and troubleshooting time. Simultaneously, this display function supports the entire process of equipment debugging, parameter setting, and operation monitoring, enhancing human-machine interaction capabilities and improving the system's intelligence level and on-site operation and maintenance efficiency.

[0063] In addition to the preferred embodiments described above, there are other embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection claimed by this utility model.

Claims

1. A false alarm humidifier, comprising a body having an atomizing chamber, the atomizing chamber being equipped with an atomizer, the body being provided with an air inlet, a mist outlet, a water inlet, a water outlet, and an overflow outlet communicating with the atomizing chamber, the air inlet being equipped with a fan, characterized in that, The main body also includes a controller, a current detection device, a control switch, and a communication module. The current detection device is set in the atomizer power supply circuit to detect the working current of the atomizer. The control switch is connected in series in the atomizer power supply circuit to control the on / off state of the power supply circuit. The input terminal of the controller is connected to the current detection device, and the output terminal of the controller is connected to the control switch and the communication module. The controller has a protection circuit for triggering automatic restart when the detected current is lower than a set threshold.

2. The humidifier with false alarm prevention according to claim 1, characterized in that, The protection circuit is equipped with a timing unit to control the time interval between two adjacent restart operations.

3. The humidifier with false alarm prevention according to claim 1, characterized in that, The current detection device is a current sensor, a current transformer, a sampling resistor, or a Hall sensor.

4. The humidifier with false alarm prevention according to claim 1, characterized in that, The main body also includes a humidity detector for detecting the humidity of the external environment and converting it into an electrical signal to be sent to the controller. The controller controls the start-up, shutdown and operation status of the atomizer and the fan according to the received humidity signal.

5. The humidifier with false alarm prevention according to claim 1, characterized in that, The atomizing chamber is also equipped with a liquid level sensor for detecting the water level of the atomizer and converting it into an electrical signal to be sent to the controller. The water inlet is equipped with a water inlet valve electrically connected to the controller, and the water outlet is equipped with a water outlet valve electrically connected to the controller. The controller controls the opening and closing of the water inlet valve and the water outlet valve according to the received water level signal.

6. The humidifier with false alarm prevention according to claim 1, characterized in that, The controller is equipped with a timing unit for determining the duration of the abnormal water level signal. When the duration of the abnormal water level signal exceeds a preset threshold, the controller triggers an automatic restart through the protection circuit.

7. The humidifier with false alarm prevention according to claim 1, characterized in that, The atomizing chamber is also equipped with a temperature detector for detecting the water temperature of the atomizer and converting it into an electrical signal to be sent to the controller. The controller controls the on / off state of the control switch based on the received water temperature signal.

8. The humidifier with false alarm prevention according to claim 1, characterized in that, The main body is equipped with an alarm indicator light, the control terminal of which is electrically connected to the output terminal of the controller, so as to illuminate when the controller outputs an alarm signal.

9. The humidifier with false alarm prevention according to claim 8, characterized in that, The alarm indicator light is a multi-color light, and the controller controls the alarm indicator light to display different colors according to the fault type.

10. The humidifier with false alarm prevention according to claim 1, characterized in that, The main body is also equipped with a digital tube or display screen to display the working status of the atomizer, and the digital tube or display screen is electrically connected to the controller.

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