Humidifying and purifying all-in-one machine

Abstract

The humidification and purification all-in-one machine comprises a shell, and an air outlet cavity, an air duct, a filtering cavity and a mounting cavity are sequentially communicated in the shell from top to bottom; wherein a filter element is arranged in the filter cavity, the filter element is in an annular shape and is arranged in the center of the filter cavity, an air inlet is formed in the side wall of the filter cavity, the air outlet cavity is provided with a first air outlet and a second air outlet, the first air outlet is located in the peripheral side of the air outlet cavity, and the second air outlet is located in the upper side of the air outlet cavity. A first air hole is communicated between the air channel and the air outlet cavity, an atomization device is arranged in the mounting cavity, an outlet of the atomization device is communicated with a fixed pipe, the fixed pipe penetrates through an inner ring of the filter element and extends into the air channel, an extension pipe is arranged in the air channel, and the extension pipe is arranged on the fixed pipe in a vertically movable and sleeving manner and is communicated with the fixed pipe; the extension pipe can move upwards to sequentially penetrate through the first air hole and the second air outlet, and the outer side wall of the extension pipe can abut against the inner side wall of the first air hole and the inner side wall of the second air outlet in a sealed mode.

Description

Technical Field

[0001] This invention specifically relates to an integrated humidifier and purifier. Background Technology

[0002] As living standards improve, users have increasingly higher requirements for indoor air quality, and all-in-one air purifiers that combine air purification and humidification functions are gradually becoming mainstream products in the market.

[0003] Existing humidifier-purifier combos mostly use a single air outlet structure, which cannot flexibly switch the air outlet mode according to the usage scenario, making it difficult to meet the needs of both large-area purification and targeted humidification. At the same time, the existing purification structure using ring-shaped filter elements often leaves the central area of ​​the filter element unused, resulting in extremely low space utilization of the entire machine. Furthermore, the setting of the atomization channel often interferes with the purification air duct, which not only increases the purification air resistance and operating noise, but also leads to uneven mixing of the purified airflow and atomized water vapor, easily causing problems such as water carried by the air outlet, rapid water mist settling, and a small humidification range. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the technical problem to be solved by the present invention is to provide a humidifier and purifier integrated machine.

[0005] A humidifier and air purifier integrated unit includes a housing. Within the housing, from top to bottom, an air outlet chamber, an air duct, a filter chamber, and a mounting chamber are sequentially connected. The filter chamber contains a filter element, which is annular in shape and positioned at the center of the filter chamber. An air inlet is located on the side wall of the filter chamber. The air outlet chamber has a first air outlet and a second air outlet, with the first air outlet located on the periphery of the air outlet chamber and the second air outlet located on the upper side of the air outlet chamber. A first air hole connects the air duct to the air outlet chamber. An atomizing device is provided within the mounting chamber. The device includes an outlet connected to a fixed tube, which extends through the inner ring of the filter element into the air duct. An extension tube is installed in the air duct, which is movably fitted onto the fixed tube and connected to it. The extension tube can move upward and pass through the first air hole and the second air outlet in sequence. The outer wall of the extension tube can seal against the inner walls of the first air hole and the second air outlet, respectively. A first driving component that can drive the extension tube to move is provided in the air duct. An exhaust fan is provided in the air duct above the filter chamber.

[0006] In one embodiment, a second air hole is connected between the air duct and the air outlet cavity. The air duct is rotatably provided with a cover ring that can block the second air hole. A third air hole that can communicate with the second air hole is opened through the cover ring. When the third air hole is disengaged from the second air hole as the cover ring rotates, the cover ring is in a connected state that closes the second air hole. A transmission structure is provided between the extension tube and the cover ring. The transmission structure can drive the cover ring to rotate synchronously while the extension tube is displaced. The opening and closing of the second air hole is realized by the rotation of the cover ring.

[0007] In one embodiment, the transmission structure includes a second driving member, a pin, a spring, and a guide groove. The guide groove is formed on the cover ring and includes an inclined groove and a straight groove that are connected sequentially from top to bottom. The lower end of the straight groove passes through the cover ring to form a lower opening for the pin to pass through. The pin is rotatably disposed on the periphery of the extension tube. The second driving member is disposed on the extension tube to drive the pin to rotate relative to the extension tube. When the pin is in a horizontal state, the pin can move upward with the extension tube and move sequentially to abut against the straight groove and the inclined groove. The spring abuts between the cover ring and the air duct, so that when the pin is disengaged from the guide groove, the straight groove is kept directly above the pin.

[0008] In one embodiment, the second driving component includes an electric telescopic rod and a lifting ring. The extension tube has a flange on its outer side, the electric telescopic rod is disposed on the flange, and the lifting ring is movably sleeved on the outer side of the extension tube and located below the axle pin. The lifting ring is connected to the drive shaft of the electric telescopic rod, and the lifting ring can be driven by the electric telescopic rod to press upward against the axle pin, thereby causing the axle pin to rotate.

[0009] In one embodiment, a cover plate capable of sealing a second air outlet is rotatably mounted on the housing via a rotating shaft. The cover plate is fixedly placed on the second air outlet by an electromagnet. The lower side of the cover plate extends through the second air outlet into the air outlet cavity and has an abutment portion. An inductive switch electrically connected to the electromagnet is provided on the lower side of the cover plate. An inductive part capable of sensing and cooperating with the inductive switch is provided on the extension tube. When the inductive part contacts the inductive switch, the electromagnet can be de-energized by the controller, and at the same time, the extension tube can be displaced to press against the abutment portion, causing the cover plate to flip.

[0010] In one embodiment, the first driving member includes a motor disposed on one side of the air duct and a gear disposed on the motor drive shaft, and a rack is fixedly disposed on one side of the extension tube along its axial direction, the rack meshing with the gear.

[0011] In one embodiment, the atomizing device includes a water tank body, a water tank cover, an ultrasonic atomizing module, a mist guide tube, a liquid level sensor, and a one-way valve. The water tank body is detachably snapped into the inner cavity of the mounting chamber, and the water tank cover is sealed to the top opening of the water tank body. The ultrasonic atomizing module is fixedly installed at the bottom of the inner cavity of the water tank body, with its atomizing surface facing upwards. The lower end of the mist guide tube penetrates the water tank cover and extends to the upper part of the inner cavity of the water tank body, and the upper end of the mist guide tube forms the outlet of the atomizing device. The upper end of the mist guide tube is coaxially and sealed with the lower end of the fixed tube. The one-way valve is located at the lower end of the mist guide tube to prevent water vapor and condensate from flowing back into the water tank body. The liquid level sensor is fixedly installed on the inner wall of the water tank body, and the signal output terminal of the liquid level sensor is electrically connected to the controller of the whole machine.

[0012] In summary, the advantages of this invention over the prior art are:

[0013] This invention achieves a coaxial integrated design of the purification air duct and the humidification atomization channel by connecting the air outlet cavity, air duct, filter cavity and installation cavity in sequence from top to bottom, together with the centrally located annular filter element, and the fixed tube passing through the inner ring of the filter element and the extension tube that can be lifted and sleeved on the fixed tube. It makes full use of the central idle space of the annular filter element, greatly reduces the overall size of the machine, simplifies the overall structure, and reduces the assembly difficulty and production cost.

[0014] Furthermore, by adjusting the lifting and lowering displacement of a single extension tube, the extension of the atomization channel, the on / off control of the first air hole, and the opening and closing control of the second air outlet can be achieved simultaneously. There is no need to set up an additional independent air valve and drive mechanism. The air duct can be completely isolated and blocked simply by the sealing contact structure between the extension tube and the first air hole and the second air outlet.

[0015] Furthermore, through the lifting and lowering control of the extension tube, combined with the switching of the folding or horizontal state of the shaft pin, it can stably achieve precise switching between three working modes: pure humidification mode, purification mode, and composite mode combining purification and humidification. Moreover, the air ducts of the three modes are completely independent and isolated: the purification air duct is completely closed in the pure humidification mode, the atomization channel is completely closed in the purification mode, and the purification air duct and humidification channel are completely separated and work in parallel in the composite mode. This completely solves the problems of airflow interference, water in the air outlet, and unstable mode switching in the existing technology, and fully adapts to different usage scenarios.

[0016] Furthermore, through the design of the transmission structure, the linkage and decoupling of the extension tube lifting action and the cover ring rotation action can be realized simply by switching the state of the shaft pin. There is no need to set up an additional independent drive element to control the opening and closing of the second air hole, which further simplifies the overall structure and reduces the control difficulty. Through the inclined groove and straight groove guiding design of the guide groove, combined with the spring reset structure, the accuracy of the cover ring rotation and reset is ensured, effectively avoiding jamming problems and improving the stability of the mechanism operation. Attached Figure Description

[0017] Figure 1 This is one of the cross-sectional views of a humidifier and purifier integrated machine according to one embodiment of the present invention;

[0018] Figure 2 This is a second cross-sectional view of a humidifier and purifier integrated machine according to one embodiment of the present invention;

[0019] Figure 3 This is a third cross-sectional view of a humidifier and purifier integrated machine according to one embodiment of the present invention;

[0020] Figure 4 This is an exploded view of a humidifier and purifier integrated machine according to one embodiment of the present invention;

[0021] Figure 5 This is a fourth cross-sectional view of a humidifier and purifier integrated machine according to one embodiment of the present invention;

[0022] Figure 6 This is a perspective view of a humidifier and purifier integrated machine according to one embodiment of the present invention. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:

[0024] like Figures 1 to 6 The present invention preferably provides a humidifier and purifier integrated machine, including a housing 1. The housing 1 has, from top to bottom, a vent chamber 2, a duct 3, a filter chamber 4, and a mounting chamber 5 connected sequentially. The filter chamber 4 contains a filter element 6, which is annular in shape and located at the center of the filter chamber 4. The side wall of the filter chamber 4 has an air inlet 7. The vent chamber 2 has a first air outlet 8 and a second air outlet 9. The first air outlet 8 is located on the periphery of the vent chamber 2, and the second air outlet 9 is located on the upper side of the vent chamber 2. A first air hole 10 connects the duct 3 and the vent chamber 2. The mounting chamber 5 contains a misting system. The atomizing device 11 has an outlet connected to a fixed tube 12. The fixed tube 12 extends through the inner ring of the filter element 6 into the air duct 3. An extension tube 13 is provided in the air duct 3. The extension tube 13 is movably sleeved on the fixed tube 12 and connected to the fixed tube 12. The extension tube 13 can move upward and pass through the first air hole 10 and the second air outlet 9 in sequence. The outer side wall of the extension tube 13 can seal and abut against the inner side wall of the first air hole 10 and the second air outlet 9 respectively. A first driving component 14 that can drive the extension tube 13 to move is provided in the air duct 3. An exhaust fan 15 is provided in the air duct 3 above the filter chamber 4.

[0025] Specifically, the air outlet chamber, air duct, filter chamber, and mounting chamber are coaxially connected from top to bottom inside the housing, forming the only main airflow path for the entire unit. Outside air can only enter the unit through the air inlet on the side wall of the filter chamber and must pass through the annular filter element before entering the air duct, completely avoiding airflow short-circuiting and ensuring that all purified air is completely filtered.

[0026] The annular filter element is coaxially fixed to the center of the filter chamber, and its inner ring forms a hollow installation channel. The fixing tube is coaxially inserted into this channel, integrating the atomization delivery channel and the purification filtration structure coaxially. This fully utilizes the unused central space of the annular filter element and significantly reduces the radial volume of the entire unit. At the same time, the annular filter surface of the filter element can achieve 360° uniform air intake. The filtered clean airflow can enter the annular air duct between the inner ring of the filter element and the fixing tube evenly, without the problems of excessive local wind resistance or uneven airflow.

[0027] The first air vent serves as the basic connecting channel between the air duct and the air outlet cavity; the first air outlet on the periphery is used for 360° surround airflow, adapting to the needs of large-scale air circulation and purification; the second air outlet on the upper side is used for directional high-level mist output, adapting to humidification needs, and avoiding water mist from directly settling and causing slippery floors and damp furniture.

[0028] The extension tube is coaxially sleeved on the fixed tube, and the two are always internally connected to form a retractable atomization delivery channel. The core working logic is divided into two core stations: Lower station: The extension tube is located entirely inside the air duct, not extending into the first air hole and the second air outlet. The first air hole is fully open, and a normal airflow path can be achieved between the air duct and the air outlet cavity; Upper station: The extension tube moves upward and passes through the first air hole and the second air outlet in sequence. Its outer wall forms an interference seal with the inner wall of the first air hole, completely blocking the airflow path between the air duct and the air outlet cavity through the first air hole. At the same time, its outer wall forms an interference seal with the inner wall of the second air outlet, blocking the inner ring gap between the air outlet cavity and the second air outlet, leaving only the atomization channel inside the extension tube directly connected to the outside.

[0029] The first driving component, as the power source for the displacement of the extension tube, can receive instructions from the controller to drive the extension tube to achieve precise vertical linear displacement along the axis of the fixed tube within the air duct. It can precisely control the extension tube to stay at the two core positions of the lower limit position and the upper limit position, thereby achieving synchronous control of the air duct opening and closing and the extension of the atomization channel.

[0030] As the power source for purifying airflow, the exhaust fan creates a continuous negative pressure in the duct after startup, driving outside air into the filter chamber through the air inlet, filtering it through the filter element, entering the duct, and then through the air outlet through the vents, finally being sent out from the first air outlet, thus achieving indoor air circulation and purification.

[0031] In summary, when operating in purification mode: the extension tube is at the lower limit position, the first air hole is fully open, the exhaust fan starts, the atomizing device stops, and the clean airflow is sent out through the first air hole, the air outlet, and the first air outlet to achieve air purification;

[0032] When operating in pure humidification mode: the extension tube is at its upper limit position, the first air vent is completely blocked, the atomizing device is activated, the exhaust fan can be started and stopped as needed, and the atomized water vapor is sent out through the fixed tube, the extension tube, and the second air outlet to achieve air humidification.

[0033] Furthermore, a second air hole 16 is connected between the air duct 3 and the air outlet cavity 2. The air duct 3 is rotatably provided with a cover ring 17 that can block the second air hole 16. A third air hole 18 is provided through the cover ring 17 that can communicate with the second air hole 16. When the third air hole 18 is disengaged from the second air hole 16 as the cover ring 17 rotates, the cover ring 17 is in a closed connection state of the second air hole 16. A transmission structure 19 is provided between the extension tube 13 and the cover ring 17. The transmission structure 19 can drive the cover ring 17 to rotate simultaneously while the extension tube 13 is displaced. The opening and closing of the second air hole 16 is realized by the rotation of the cover ring 17.

[0034] Specifically, the second air hole is an independent backup connection channel added between the air duct and the air outlet cavity, which is independent of the first air hole and does not interfere with each other; the cover ring is coaxially rotatably set on the top end face of the air duct. In the initial state, the solid area of ​​the cover ring completely covers the second air hole, realizing the closure of the second air hole; when the cover ring rotates to the point where the third air hole is coaxially aligned with the second air hole, the second air hole is fully open, and an independent airflow path can be formed between the air duct and the air outlet cavity through the second air hole.

[0035] The transmission structure is a power transmission mechanism between the extension tube and the cover ring, which establishes a linkage between the linear lifting displacement of the extension tube and the rotational motion of the cover ring, realizing the function of "synchronous control of the extension tube displacement to open and close the second air hole". There is no need to set a separate drive element for the second air hole, which greatly simplifies the overall structure and control logic.

[0036] Furthermore, when the extension tube is at the upper limit position and the first air hole is blocked, the cover ring can be driven to rotate through the transmission structure to open the second air hole, allowing the purified airflow to enter the air outlet cavity through the second air hole and finally be sent out from the first air outlet, realizing the synchronous and independent operation of purification and humidification, and providing a structural basis for the purification and humidification composite mode.

[0037] Further, the transmission structure 19 includes a second driving component 20, a shaft pin 21, a spring 22, and a guide groove. The guide groove is formed on the cover ring 17 and includes an inclined groove 23 and a straight groove 24 connected sequentially from top to bottom. The lower end of the straight groove 24 passes through the cover ring 17 to form a lower opening for the shaft pin 21 to pass through. The shaft pin 21 is rotatably disposed on the periphery of the extension tube 13. The second driving component 20 is disposed on the extension tube 13 to drive the shaft pin 21 to rotate relative to the extension tube 13. When the shaft pin 21 is in a horizontal state, the shaft pin 21 can move upward with the extension tube 13 and move sequentially to abut against the straight groove 24 and the inclined groove 23. The spring 22 abuts against the cover ring 17 and the air duct 3. The spring 22 ensures that when the shaft pin 21 is disengaged from the guide groove, the straight groove 24 is positioned directly above the shaft pin 21.

[0038] Specifically, the guide groove is a guiding transmission structure on the cover ring; the straight groove is a vertical guide section used for the initial insertion and positioning of the shaft pin to avoid insertion deviation; the inclined groove is an inclined guide section used to convert the linear lifting motion of the shaft pin into the rotational motion of the cover ring; the spring is the reset and limiting element of the cover ring, which always applies a preset rotational preload to the cover ring. When the shaft pin is not inserted into the guide groove, it limits the rotation angle of the cover ring, so that the lower opening of the straight groove is always directly above the shaft pin, ensuring that when the shaft pin moves upward in a horizontal state, it can be accurately inserted into the guide groove and avoid jamming.

[0039] The shaft pin is the core of the linkage and decoupling mechanism of the transmission structure. Its rotation state is controlled by the second driving component, realizing flexible switching between linkage and decoupling, and precisely corresponding to the two core operating scenarios of the whole machine:

[0040] Vertical folding state: The shaft pin rotates to an angle that is nearly parallel to the axis of the extension tube. When the extension tube moves up and down, it will not come into contact with the cover ring or guide groove. The transmission structure is in a decoupled state. The displacement of the extension tube will not trigger the rotation of the cover ring. The second air hole always remains closed, perfectly meeting the operation requirements of the pure humidification mode.

[0041] Horizontal unfolded state: The shaft pin rotates to be perpendicular to the axis of the extension tube, and its outer end exceeds the outer diameter of the extension tube. When the extension tube moves upward, it can be accurately inserted into the lower opening of the guide groove. The transmission structure is in a linked state. The upward displacement of the extension tube can drive the cover ring to rotate and open the second air hole through the cooperation of the shaft pin and the guide groove, perfectly meeting the operation requirements of the purification and humidification composite mode.

[0042] When the pin is in a horizontally extended state and the extension tube moves upward, the pin first enters the straight groove and moves vertically upward along the groove to complete the initial positioning. It continues to move upward into the inclined groove, and the outer end of the pin slides along the inclined inner wall of the groove, applying a horizontal component force to the inner wall of the groove. This forces the cover ring to overcome the preload of the spring and rotate around the axis, gradually aligning the third air hole on the cover ring with the second air hole. When the extension tube reaches the upper limit position, the third air hole and the second air hole are completely coaxially connected, and the second air hole is fully open.

[0043] When the extension tube moves downward, the shaft pin moves downward along the inclined groove and the straight groove, the driving force on the cover ring disappears, and the cover ring rotates in the opposite direction to reset under the preload of the spring. The third air hole and the second air hole are completely misaligned, and the second air hole is closed again. The shaft pin continues to move downward with the extension tube and completely disengages from the guide groove. Under the limiting action of the spring, the cover ring maintains the initial angle with the straight groove directly above the shaft pin, waiting for the next linkage trigger.

[0044] Furthermore, the second driving component 20 includes an electric telescopic rod 25 and a lifting ring 26. The extension tube 13 has a flange on its outer side, and the electric telescopic rod 25 is disposed on the flange. The lifting ring 26 is movably sleeved on the outer side of the extension tube 13 and located below the shaft pin 21. The lifting ring 26 is connected to the drive shaft of the electric telescopic rod 25. The lifting ring 26 can be driven by the electric telescopic rod 25 to press upward against the shaft pin 21, thereby causing the shaft pin 21 to rotate.

[0045] Specifically, the flange on the outside of the extension tube provides a stable mounting position for the electric telescopic rod. The axis of the electric telescopic rod is parallel to the axis of the extension tube, ensuring stable transmission of driving force in the vertical direction. The lifting ring is coaxially sleeved on the outside of the extension tube and can slide freely along the axis of the extension tube. Its upper end face is directly opposite the lower side of the rotating end of the pin, providing uniform pressure support for the rotation of the pin. When the controller needs to trigger the linkage of the transmission structure, it sends an extension command to the electric telescopic rod. The drive axis of the electric telescopic rod extends upward, driving the lifting ring to slide upward along the extension tube. The upper end face of the lifting ring presses upward against the lower side of the pin, applying an upward driving force to the pin, causing the pin to rotate upward around its axis, from a vertically folded state to a horizontally unfolded state, completing the linkage preparation.

[0046] When the controller needs to decouple the transmission structure, it sends a retraction command to the electric telescopic rod. The drive shaft of the electric telescopic rod retracts downward, causing the lifting ring to slide down and reset along the extension tube. The resistance of the lifting ring to the shaft pin disappears. Under its own gravity, the shaft pin rotates downward around its pivot and automatically resets to the vertical folded state, thus completing the decoupling.

[0047] Furthermore, a cover plate 27 that can cover the second air outlet 9 is rotatably provided on the housing 1 via a rotating shaft. The cover plate 27 is fixedly placed on the second air outlet 9 by an electromagnet (not shown in the figure). The lower side of the cover plate 27 extends through the second air outlet 9 into the air outlet cavity 2 and is provided with an abutment part 28. The lower side of the cover plate 27 is provided with an induction switch (not shown in the figure) that is electrically connected to the electromagnet (not shown in the figure). The extension tube 13 is provided with a sensing part (not shown in the figure) that can sense and cooperate with the induction switch (not shown in the figure). When the sensing part (not shown in the figure) contacts the induction switch (not shown in the figure), the electromagnet (not shown in the figure) can be de-energized by the controller, and at the same time, the extension tube 13 can be displaced to press against the abutment part 28, so that the cover plate 27 flips over.

[0048] When the machine is in a non-working state or purification mode, the controller controls the electromagnet to be continuously energized. The magnetic force generated by the electromagnet attracts and fixes the cover plate, so that the cover plate is stably covered on the second air outlet, completely sealing the second air outlet. This effectively prevents dust and debris from entering the machine through the second air outlet, improving the cleanliness of the machine and extending the service life of the equipment.

[0049] When the extension tube moves upward to the preset trigger position, the sensing part on the extension tube contacts the induction switch on the lower side of the cover plate. The induction switch immediately sends a trigger signal to the controller. After receiving the signal, the controller immediately controls the electromagnet to de-energize, the magnetic attraction disappears, and the adhesion to the cover plate is released. The extension tube continues to move upward, and its top end face directly presses against the abutment part on the lower side of the cover plate, applying an upward thrust to the cover plate and driving the cover plate to rotate upward around the axis, fully opening the second air outlet, so that the upper outlet of the extension tube can be directly exposed to the outside of the whole machine, realizing the smooth delivery of atomized water vapor.

[0050] When the mode operation ends and the extension tube moves downward to reset, the top end face of the extension tube separates from the contact part of the cover plate, and the pushing force on the cover plate disappears. Under its own gravity, the cover plate rotates downward to reset and re-covers the second air outlet. At the same time, the sensing part on the extension tube disengages from the sensing switch, and the controller immediately controls the electromagnet to be energized again, generating magnetic attraction to fix the cover plate, so that the cover plate stably closes the second air outlet and completes the reset.

[0051] Furthermore, the first driving component 14 includes a motor 29 disposed on one side of the air duct 3 and a gear 30 disposed on the drive shaft of the motor 29. A rack 31 is fixedly disposed on one side of the extension tube 13 along its axial direction, and the rack 31 meshes with the gear 30.

[0052] Specifically, there are vertical guide grooves recessed on the inner sides of both sides of the air duct, and guide flanges protruding on both sides of the extension pipe to cooperate with the vertical guide grooves, so as to realize the vertical guide displacement of the extension pipe.

[0053] When upward control is required: The controller sends a forward operation command to the motor, the motor drive shaft rotates in the forward direction, which drives the gear to rotate in the forward direction synchronously. Through the meshing transmission of the gear and rack, the rack is driven to move upward in the vertical direction, which in turn drives the extension tube to move upward coaxially along the fixed tube, and precisely controls the extension tube to reach the upper limit position.

[0054] When descent control is required: The controller sends a reverse rotation command to the motor, the motor's drive shaft rotates in the reverse direction, which drives the gear to rotate in the reverse direction synchronously. Through the meshing transmission of the gear and rack, the rack is driven to move downward in the vertical direction, which in turn drives the extension tube to move downward coaxially along the fixed tube, and precisely controls the extension tube to reset to the lower limit position.

[0055] Furthermore, the atomizing device 11 includes a water tank body, a water tank cover, an ultrasonic atomizing module, a mist guide tube, a liquid level sensor, and a one-way valve; the water tank body is detachably snapped into the inner cavity of the mounting cavity, and the water tank cover is sealed to the top opening of the water tank body; the ultrasonic atomizing module is fixedly installed at the bottom of the inner cavity of the water tank body, with the atomizing surface of the ultrasonic atomizing module facing upwards; the lower end of the mist guide tube penetrates through the water tank cover and extends to the upper part of the inner cavity of the water tank body, the upper end of the mist guide tube forms the outlet of the atomizing device, and the upper end of the mist guide tube is coaxially and sealed with the lower end of the fixed tube; the one-way valve is located at the lower end port of the mist guide tube to prevent water vapor and condensate from flowing back into the water tank body; the liquid level sensor is fixedly installed on the inner wall of the water tank body, and the signal output terminal of the liquid level sensor is electrically connected to the controller of the whole machine.

[0056] Specifically, the atomizing device is a relatively mature existing technology, and its structure is equivalent to that of the atomizing humidification device disclosed in Chinese Patent Publication No. CN202792358U.

[0057] Preferably, a fan is installed inside the extension pipe, and the water tank body serves as the storage container for atomized water. It employs a detachable snap-fit ​​installation method, allowing for quick removal from the installation cavity, facilitating water addition and cleaning of scale and impurities inside the tank. The water tank lid and the top opening of the water tank body are sealed together to prevent leakage when the tank is tilted. This also provides a fixed mounting position for the mist guide pipe, ensuring a coaxial, sealed connection between the mist guide pipe and the fixed pipe, preventing mist loss due to leakage of atomized water vapor. The ultrasonic atomizing module is the core of atomized water vapor generation. After receiving the controller's start command, it disperses the liquid water inside the water tank body into 1-5μm ultrafine water mist particles through high-frequency resonance of the piezoelectric ceramic sheet. This process requires no heating, consumes little energy, and has high atomization efficiency. The generated cold mist avoids water quality deterioration and air dryness problems caused by heating, making it suitable for indoor humidification needs. The ultra-fine water mist generated by the ultrasonic atomizing module, driven by natural buoyancy and the airflow from the fan, gathers upward in the upper part of the inner cavity of the water tank body. It is then transported upward through the mist guide tube to the fixed tube, and then sent out through the atomization channel formed by the extension tube. The one-way valve at the lower end of the mist guide tube has a one-way conduction structure, which only allows the water mist to flow from the inside of the water tank body to the mist guide tube in one direction, completely blocking the backflow of external condensate, debris, and dust into the water tank body, avoiding water quality pollution in the water tank, and preventing the backflow of condensate in the pipe when the atomizing module stops, which could cause short circuit damage to the atomizing module.

[0058] The liquid level sensor monitors the water level in the tank in real time. When the water level is higher than the preset safety threshold, the liquid level sensor sends a normal signal to the controller and the anti-dry-burning protector, and the ultrasonic atomizing module can start and operate normally. When the water level is lower than the preset safety threshold, the liquid level sensor immediately sends a trigger signal. After receiving the signal, the anti-dry-burning protector immediately cuts off the power supply circuit of the ultrasonic atomizing module, forcing the atomizing module to stop, thus completely avoiding the problem of dry burning and damage to the atomizing module in the absence of water. At the same time, the controller issues a low liquid level reminder to the user, improving the overall safety and service life of the machine.

[0059] The foregoing has shown and described the basic principles and main features of the present invention, as well as its advantages. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the present invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A humidifier and purifier integrated machine, comprising a housing (1), characterized in that: The housing (1) is connected from top to bottom to an air outlet cavity (2), an air duct (3), a filter cavity (4), and an installation cavity (5); wherein, the filter cavity (4) is provided with a filter element (6), and the filter element (6) is annular in shape and located at the center of the filter cavity (4); the side wall of the filter cavity (4) is provided with an air inlet (7); the air outlet cavity (2) is provided with a first air outlet (8) and a second air outlet (9), the first air outlet (8) is located on the periphery of the air outlet cavity (2), and the second air outlet (9) is located on the upper side of the air outlet cavity (2); the air duct (3) and the air outlet cavity (2) are connected by a first air hole (10); the installation cavity (5) is provided with an atomizing device (11); the atomizing device (11) is provided with a first air hole (10) connecting the air duct (3) and the air outlet cavity (2); the installation cavity (5) is provided with an atomizing device (11); the atomizing device (11) is provided with a first air hole (10) connecting the air duct (3) and the air outlet cavity (2). 1) The outlet is connected to a fixed pipe (12), which extends through the inner ring of the filter element (6) into the air duct (3). An extension pipe (13) is provided in the air duct (3). The extension pipe (13) is movably sleeved on the fixed pipe (12) and connected to the fixed pipe (12). The extension pipe (13) can move upward and pass through the first air hole (10) and the second air outlet (9) in sequence. The outer wall of the extension pipe (13) can seal and abut against the inner wall of the first air hole (10) and the second air outlet (9) respectively. A first driving component (14) that can drive the extension pipe (13) to move is provided in the air duct (3). An exhaust fan (15) is provided in the air duct (3) above the filter chamber (4).

2. The humidifier and purifier integrated machine according to claim 1, characterized in that: A second air hole (16) is connected between the air duct (3) and the air outlet (2). The air duct (3) is rotatably provided with a cover ring (17) that can block the second air hole (16). A third air hole (18) that can be connected to the second air hole (16) is opened through the cover ring (17). When the third air hole (18) is disengaged from the second air hole (16) as the cover ring (17) rotates, the cover ring (17) is in a closed connection state of the second air hole (16). A transmission structure (19) is provided between the extension tube (13) and the cover ring (17). The transmission structure (19) can drive the cover ring (17) to rotate synchronously while the extension tube (13) is displaced. The second air hole (16) can be opened and closed by rotating the cover ring (17).

3. The humidifier and purifier integrated machine according to claim 2, characterized in that: The transmission structure (19) includes a second driving member (20), a shaft pin (21), a spring (22), and a guide groove. The guide groove is formed on the cover ring (17) and includes an inclined groove (23) and a straight groove (24) connected sequentially from top to bottom. The lower end of the straight groove (24) passes through the cover ring (17) to form a lower opening for the shaft pin (21) to pass through. The shaft pin (21) is rotatably disposed on the periphery of the extension tube (13). The second driving member (20) is disposed on the extension tube (13). The extension tube (13) provides a drive pin (21) to rotate relative to the extension tube (13). When the pin (21) is in a horizontal state, the pin (21) can move upward with the extension tube (13) and move in sequence to abut against the straight groove (24) and the inclined groove (23). The spring (22) abuts between the cover ring (17) and the air duct (3). The spring (22) ensures that when the pin (21) is disengaged from the guide groove, the straight groove (24) is positioned directly above the pin (21).

4. The humidifier and purifier integrated machine according to claim 3, characterized in that: The second driving component (20) includes an electric telescopic rod (25) and a lifting ring (26). The extension tube (13) has a flange on its outer side. The electric telescopic rod (25) is mounted on the flange. The lifting ring (26) is movably sleeved on the outer side of the extension tube (13) and located below the shaft pin (21). The lifting ring (26) is connected to the drive shaft of the electric telescopic rod (25). The lifting ring (26) can be driven by the electric telescopic rod (25) to press upward against the shaft pin (21) so that the shaft pin (21) rotates.

5. A humidifier and purifier integrated machine according to claim 1, characterized in that: The housing (1) is provided with a cover plate (27) that can cover the second air outlet (9) by rotating a pivot. The cover plate (27) is fixedly placed on the second air outlet (9) by an electromagnet. The lower side of the cover plate (27) extends through the second air outlet (9) into the air outlet cavity (2) and is provided with an abutment part (28). The lower side of the cover plate (27) is provided with an induction switch that is electrically connected to the electromagnet. The extension tube (13) is provided with an induction part that can cooperate with the induction switch. When the induction part contacts the induction switch, the electromagnet can be de-energized by the controller, and at the same time the extension tube (13) can be displaced and pressed against the abutment part (28) so that the cover plate (27) flips over.

6. The humidifier and purifier integrated machine according to claim 1, characterized in that: The first driving component (14) includes a motor (29) disposed on one side of the air duct (3) and a gear (30) disposed on the drive shaft of the motor (29). A rack (31) is fixedly disposed on one side of the extension tube (13) along its axial direction, and the rack (31) meshes with the gear (30).

7. The humidifier and purifier integrated machine according to claim 1, characterized in that: The atomizing device (11) includes a water tank body, a water tank cover, an ultrasonic atomizing module, a mist guide tube, a liquid level sensor, and a one-way valve. The water tank body is detachably snapped into the inner cavity of the mounting cavity, and the water tank cover is sealed to the top opening of the water tank body. The ultrasonic atomizing module is fixedly installed at the bottom of the inner cavity of the water tank body, with the atomizing surface of the ultrasonic atomizing module facing upwards. The lower end of the mist guide tube penetrates the water tank cover and extends to the upper part of the inner cavity of the water tank body. The upper end of the mist guide tube forms the outlet of the atomizing device, and the upper end of the mist guide tube is coaxially and sealed with the lower end of the fixed tube. The one-way valve is located at the lower end port of the mist guide tube to prevent water vapor and condensate from flowing back into the water tank body. The liquid level sensor is fixedly installed on the inner wall of the water tank body, and the signal output terminal of the liquid level sensor is electrically connected to the controller of the whole machine.

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