Humidifier air duct structure and humidifier

Abstract

The invention relates to a humidifier air duct structure which comprises a humidifier machine shell, an air inlet is formed in the surface of the humidifier machine shell, and an inner cavity of the humidifier machine shell communicates with the outside through the air inlet; the rotating wheel assembly is rotatably installed at the position of an inner cavity of the humidifier machine shell, a hollow cavity is formed in the rotating wheel assembly, and a plurality of ventilation gaps for communicating the outer space of the rotating wheel assembly with the hollow cavity are formed in the circumferential direction of the rotating wheel assembly; the fan is arranged on one side of the hollow cavity of the rotating wheel assembly, and an air inducing opening of the fan is communicated with the hollow cavity; the humidifier is reasonable in design, air outside the humidifier sequentially passes through the air inlet of the humidifier shell, the ventilation gaps, the hollow cavity of the rotating wheel assembly, the draught fan and the air outlet of the draught fan in an air inducing mode to form a surrounding type air channel, and therefore air can evenly pass through each ventilation gap in the rotating wheel assembly, and the ventilation effect is improved. And the evaporation area is effectively increased, the humidification amount is multiplied, meanwhile, effective utilization of the rotating wheel assembly is guaranteed, and the humidification efficiency is remarkably improved.

Description

Technical Field

[0001] The present application relates to the technical field of humidifiers, and in particular to a humidifier air duct structure and a humidifier. Background Art

[0002] A humidifier is a household appliance used to increase the humidity in a room or specific space by adding moisture to the air, raising the humidity level, thereby creating a more comfortable and healthier environment for the occupants.

[0003] A Chinese invention patent with application number CN202311498009.5 discloses a high-efficiency humidifier, which includes a water storage part and a humidifying part, wherein the humidifying part is arranged in the water storage part and can rotate in the water storage part; a first air inlet, wherein the first air inlet is opened in the humidifying part, and the first air inlet is used to allow wind to enter from the middle of the humidifying part and diffuse toward the edge of the humidifying part.

[0004] The above scheme still has certain defects in actual use, mainly because when the wind blows from the middle to the edge, due to the characteristics of the fan blades, the air volume of the rotor outside the humidification rotor assembly is very small, so there is still a problem that the wind cannot fully cover the humidification rotor. If the humidification amount is to be increased, it is necessary to increase the size of the fan blades and increase the number of humidification rotors, which will increase the size of the humidifier, make the machine bulky, and be inconvenient for users to use. In addition, although the humidification part (i.e., the rotor) rotates in the water storage part (i.e., the water receiving tray), the water in the water receiving tray can be brought out during the rotation of the rotor, and then the humid air is blown out of the humidifier under the action of wind to achieve the effect of indoor humidification. However, since the water in the water receiving tray is constantly brought out, the amount of water inside the water receiving tray will be reduced, and the user cannot know the amount of water in the water receiving tray, nor can he add water in time, resulting in insufficient water carrying capacity of the rotor and poor humidification effect. In addition, when the humidifier is idle, a certain amount of water will remain inside the water tray. If this residual water is not used for a long time, it will become moldy, bacteria will grow, and produce odor, thereby affecting environmental hygiene when the humidifier continues to work and greatly reducing the user's experience of the humidifier. Summary of the invention

[0005] In order to solve the problems raised in the above background technology that the wind of the existing humidifier cannot fully cover the humidification wheel, resulting in low wheel air volume, and the water receiving tray cannot be replenished with water in time, and the residual water when idle is prone to cause mold, bacteria growth and odor, the present application provides a humidifier air duct structure and a humidifier.

[0006] The humidifier air duct structure and humidifier provided in this application adopt the following technical solutions: The humidifier air duct structure includes: The humidifier casing has an air inlet on its surface, and the air inlet connects the inner cavity of the humidifier casing with the outside world; A rotor assembly is rotatably mounted in the inner cavity of the humidifier housing, has a hollow cavity inside, and has a plurality of ventilation gaps in the circumferential direction for connecting the outer space of the rotor assembly with the hollow cavity; The fan is arranged at one side of the hollow cavity of the rotor assembly, the air inlet of the fan is connected to the hollow cavity, and the air outlet is close to the top of the humidifier housing; The fan draws air along the edge of the humidifier casing into the inner cavity thereof, and enters the hollow cavity from the ventilation gap of the rotor assembly, and is finally discharged from the air outlet of the fan.

[0007] By adopting the above technical solution, the fan is arranged on one side of the rotor assembly, and the external air of the humidifier is guided through the air inlet of the humidifier casing, the ventilation gap of the rotor assembly, the hollow cavity of the rotor assembly, the fan and the air outlet of the fan in sequence by means of induced draft, so that wind can pass through each ventilation gap on the rotor assembly evenly, effectively increasing the evaporation area, doubling the humidification amount, and also ensuring the effective utilization of the rotor assembly, and significantly improving the humidification efficiency.

[0008] Optionally, the air inlet is opened at at least one position of the left wall, right wall, and top wall of the humidifier housing.

[0009] By adopting the above technical solution, during actual operation, air can pass through the humidifier casing and enter the interior of the humidifier casing, and then directly enter the ventilation gap of the wheel assembly, thereby reducing air volume loss.

[0010] When the air inlet is arranged on the left side wall of the humidifier housing, the wind enters the humidifier from the air inlet, and then evenly passes through each annular rotating disk of the rotating wheel assembly from the left side and the upper left position of the rotating wheel assembly; When the air inlet is arranged on the right side wall of the humidifier housing, the wind enters the humidifier from the air inlet, and then evenly passes through each annular rotating disk of the rotating wheel assembly from the right side and the upper right position of the rotating wheel assembly; When the air inlet is arranged at the top of the humidifier housing, the wind enters the humidifier from the air inlet, and then diffuses from above the humidification wheel, passing through each annular rotating disk evenly vertically and circumferentially; It is preferred to set air inlets at the above three positions at the same time, so that the wind can enter the humidifier and pass through the rotor assembly in a 360° surround manner. The wind flows from the periphery of the rotor assembly to the center, and then disperses from the air outlet, ensuring that the effective evaporation area of ​​each annular turntable is the largest, the air volume is the largest, and the humidification efficiency is the best. The humidification efficiency of a single rotor assembly is equally improved, and the air volume is evenly distributed.

[0011] Optionally, the wheel assembly includes a plurality of annular turntables that are coaxially and synchronously rotatably connected, and the ventilation gap is located between two adjacent annular turntables.

[0012] By adopting the above technical solution, the annular turntable can facilitate the rotation of the wheel assembly inside the humidifier casing, and facilitate the air to quickly enter the ventilation gap between two adjacent annular turntables; and because the wind enters the middle from all four sides of the wheel assembly, the wind resistance is small, and the wind flows from the edge to the center of each annular turntable, the effective evaporation area is increased, the utilization rate of the wind is increased, and the humidification amount is effectively improved.

[0013] Optionally, the annular turntable at one end away from the fan is a centrally closed structure, and an outer surface of the annular turntable at one end away from the fan has a gripping handle protruding outward.

[0014] By adopting the above technical solution, the closed structure can prevent air from entering the hollow cavity without passing through the ventilation gap, that is, it can ensure that the air can only enter the hollow cavity after passing through the ventilation gap, which can increase the evaporation area and improve the humidification amount; The provided holding buckle can improve convenience by holding the holding buckle when installing and positioning the rotating wheel assembly, so as to improve the flexibility of the wheel assembly during assembly, while also avoiding the problem of inaccurate positioning caused by interference of gears inside the rotating wheel assembly, and also facilitating subsequent disassembly and improving the efficiency of disassembly and assembly.

[0015] Optionally, the fan includes: A housing, wherein the housing has an air outlet passage extending upward, and the cross-sectional width of the air outlet passage is gradually increased from bottom to top; The impeller is located outside one end of the hollow cavity, and the impeller is arranged outside the hollow cavity, and the air inlet is located at one end of the impeller close to the rotor assembly.

[0016] By adopting the above technical solution, the cross-sectional width of the air outlet channel is gradually increased from bottom to top, so that the humid air can be quickly diffused into the air, expanding the humidification range; the setting of the impeller position makes the fan closer to the hollow cavity, so as to improve the compactness of the overall structure of the equipment, and also reduce the air volume loss, so that the humidification process has the characteristics of fast wind speed and large air volume, which is conducive to improving the humidification effect; The present application also provides a humidifier, comprising the humidifier air duct structure as described above.

[0017] By adopting the above technical solution, Optionally, also include: A water receiving tray is installed inside the humidifier housing, and support members for supporting and rotating the rotating wheel assembly are provided on the left and right sides of the water receiving tray. The rotating wheel assembly is installed on the water receiving tray and contacts the support members; A water tank, which is mounted on the humidifier housing; A water outlet pipeline is connected to the water tank and the water receiving tray, and is configured to guide the liquid in the water tank to the water receiving tray; A water return pipeline is connected to the water tank and the water receiving tray, and is configured to guide the liquid in the water receiving tray into the water tank; Among them, when the liquid amount in the water receiving tray is lower than the threshold, the liquid in the water tank can enter the water receiving tray through the water outlet pipe to replenish the liquid amount in the water receiving tray. When the humidifier is idle, the liquid can be introduced from the water receiving tray into the water tank.

[0018] By adopting the above technical solution, a water tank is added to facilitate timely replenishment of water when the water level in the water receiving tray decreases, so as to avoid the problem of insufficient water carrying and poor humidification effect during the rotation of the internal wheel of the humidifier; in addition, when the humidifier is idle, the water in the water receiving tray can be reintroduced into the water tank through the return pipe, so as to avoid the problem of residual water in the water receiving tray becoming moldy, bacterial growth and odor due to the humidifier not being used for a long time, which is beneficial to improving the hygiene inside the humidifier.

[0019] Among them, the water level in the water tank can be controlled according to demand, making the machine more intelligent. It can not only control the humidification efficiency by controlling the air volume of the fan, but also control the humidification efficiency by controlling the water volume in the bottom water tank, making the humidification amount more accurate.

[0020] Optionally, a concave water receiving groove is provided inside the humidifier housing, and one end of the root of the water receiving groove extends toward the water tank, so that liquid can be introduced into the water tank from the water receiving groove; The top of the humidifier housing is provided with a concave water inlet, which is communicated with the water receiving tank.

[0021] By adopting the above technical scheme, during the process of returning water or adding water, the water can be placed in the water receiving trough first, and then flow from the water receiving trough to the water tank, so as to avoid the problem of poor water adding or returning water caused by the water inlet of the water tank being too small; the setting of the water inlet is used to facilitate the user to pour water directly at the water inlet when adding water to the water tank, so that the water can enter the water receiving trough and then flow to the water tank, thereby improving the convenience of adding water.

[0022] Optionally, a pumping member is provided at one end of the return water pipeline close to the water receiving tray, and the pumping member is rotatably installed above the water receiving tray; the other end of the return water pipeline is connected to the inner cavity of the water tank; The pumping element includes a rotating shaft, which is rotatably mounted on a mounting bracket fixed inside the humidifier, and a torsion spring is sleeved on the rotating shaft, so that the pumping element always turns in a specified direction when no external force is applied; The pumping member also includes a water suction pipe fixed at one end of the rotating shaft and perpendicular to the rotating shaft. The end of the rotating shaft has a joint connected to the water suction pipe, and the joint is connected to the end of the return pipe. A first limit rod and a second limit rod extending along its radial direction are arranged on the outside of the rotating shaft.

[0023] By adopting the above technical scheme, the torsion spring can be used to drive the water pumping member to always rotate to the specified position, and when an external force acts on the water pumping member, the elastic force of the torsion spring can be overcome to make the water pumping member rotate, so as to meet the change of working state when pumping or not pumping water; wherein, by immersing the water suction pipe into the water of the water receiving tray, water can enter the water suction pipe when pumping water, and then enter the return water pipeline through the structure; the first limit rod and the second limit rod mainly play the effect of limiting the rotation of the shaft, and the first limit rod and the second limit rod form a V-shaped structure. When the humidifier wheel is placed in the water receiving tray, the wheel can drive the water pumping member to rotate so that the water suction pipe is immersed in the water. When the humidifier wheel is taken out of the water receiving tray, since the water pumping member is not subjected to external force, the torsion spring can drive the water pumping member to rotate to the specified position. The specified position is the state where the water suction pipe port is above the outside of the water receiving tray, which can facilitate the removal of the water receiving tray from the inside of the humidifier to prevent interference.

[0024] Optionally, a visual window is provided on the outer surface of the water tank; A liquid level sensor is installed inside the water receiving tray.

[0025] By adopting the above technical solution, the visual window can facilitate users to observe the water level in the water tank, so as to replenish the water tank in time; the liquid level sensor is used to monitor the water level in the water tray in real time, and when the liquid level drops, the signal can be transmitted to the control system of the humidifier, so as to achieve the effect of replenishing water in time. In summary, the present application includes at least one of the following beneficial technical effects: 1. The design structure of the present invention is reasonable. It adopts the method of inducing wind to let the external air of the humidifier pass through the air inlet of the humidifier casing, the ventilation gap, the hollow cavity of the rotor assembly, the fan and the air outlet of the fan in sequence to form a surrounding air duct, so that wind can pass through each ventilation gap on the rotor assembly evenly, effectively increasing the evaporation area, doubling the humidification amount, and also ensuring the effective use of the rotor assembly, and significantly improving the humidification efficiency.

[0026] 2. The air intake method of the present invention can effectively control the humidification amount by simply controlling the air volume of the fan, and the control of the humidification amount is more accurate and convenient. In addition, the humidification effect is improved by improving the air intake and outlet methods, avoiding the problem of increasing the size of the fan impeller to improve the humidification efficiency, thereby increasing the fuselage, improving efficiency while reducing energy consumption, making the humidifier more exquisite.

[0027] 3. In addition to the water receiving tray of the traditional humidifier, the present invention adds a water tank to effectively control the water level in the water receiving tray, so that when the humidifier is working, there is always enough water in the water receiving tray, ensuring that the water carrying capacity of the humidifier's rotor is always in a sufficient state, thereby improving the humidification efficiency.

[0028] 4. The present invention can redirect the residual water in the water receiving tray into the water tank when the humidifier is in an idle state, thereby avoiding the problem of mold and odor inside the humidifier due to the presence of residual water and improving sanitary conditions.

[0029] 5. The present invention arranges a rotatable pumping member above the water receiving tray to pump water. The water suction pipe of the pumping member can be placed inside the water receiving tray during the pumping process, and the water suction pipe of the pumping member can be automatically rotated to above the water receiving tray when the rotating wheel is taken out, thereby meeting the purpose of quickly taking out the water receiving tray. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 is a three-dimensional diagram of a humidifier of the present invention; Figure 2 is a cutaway perspective view of a humidifier of the present invention; Figure 3 is an exploded view of the present invention; Figure 4 It is the internal structure diagram of the present invention; Figure 5 is an exploded view of the fan of the present invention; Figure 6 is a cross-sectional view of the fan of the present invention; Figure 7 The three-dimensional structure of the rotating wheel assembly of the present invention Figure 1 ; Figure 8 The three-dimensional structure of the rotating wheel assembly of the present invention Figure 2 ; Fig. 9 is a cross-sectional view of a runner assembly of the present invention; Fig.10 is a three-dimensional diagram of the annular turntable of the present invention; Fig.11 The present invention is a three-dimensional pipe connection between the water tank, the water receiving tray and the humidifier housing. Figure 1 ; Fig.12 The present invention is a three-dimensional pipe connection between the water tank, the water receiving tray and the humidifier housing. Figure 2 ; Fig.13 It is an exploded view of the management connection of the water tank, the water receiving tray and the humidifier housing of the present invention; Fig.14 It is an assembly structure diagram of the pumping member, the torsion spring and the mounting bracket of the present invention; Fig.15 It is an exploded view of the assembly of the pumping member, the torsion spring and the mounting bracket of the present invention; Fig.16 is a cross-sectional view of the pumping member, the torsion spring and the mounting bracket of the present invention; Fig.17 It is a three-dimensional diagram of the support member of the present invention.

[0031] Description of reference numerals: 1. Humidifier housing; 101. air inlet; 102. water tank; 103. water inlet; 2. Rotating wheel assembly; 201. Rotating disk; 2011. Through hole; 2012. Protruding ring; 202. Hollow cavity; 203. Connecting rod; 204. Grip handle; 205. Ventilation gap; 3. Fan; 301. Impeller; 302. Casing; 303. Motor; 304. Air inlet; 305. Air outlet; 306. Air outlet channel.

[0032] 4. Water tank; 401. Water outlet; 5. water tray; 501. support member; 6. Water outlet pump; 7. Water outlet pipeline; 8. Return water pump; 9. Return pipe; 10. Pumping member; 1001. Suction pipe; 1002. Rotating shaft; 1003. First limiting rod; 1004. Joint; 1005. Second limiting rod; 11. Install the bracket; 12. Torsion spring. DETAILED DESCRIPTION

[0033] The present application is further described in detail below in conjunction with the accompanying drawings.

[0034] As shown in the figure, the embodiment of the present application discloses a humidifier air duct structure, including: The humidifier casing 1 has an air inlet 101 on its surface, and the air inlet 101 connects the inner cavity of the humidifier casing 1 with the outside, wherein the air inlet 101 is provided at at least one position of the left wall, the right wall, and the top wall of the humidifier casing 1, so that air can pass through the humidifier casing 1 and enter the humidifier. In this example, the air inlet 101 is provided at the above three positions, so that the wind can enter the humidifier in a 360° surround manner and pass through the rotor assembly 2, and the wind flows from the periphery of the rotor assembly 2 to the center, and then disperses from the air outlet 305, ensuring that each annular turntable 201 has the largest effective evaporation area, the largest amount of air flow, and the best humidification efficiency, and the humidification efficiency of a single annular turntable 201 is equally improved, and the air volume is evenly distributed; In one embodiment, the air inlet is arranged on the left side wall of the humidifier housing, and the wind enters the humidifier from the air inlet, and then evenly passes through each annular rotating disk of the rotating wheel assembly from the left side and the upper left position of the rotating wheel assembly; In one embodiment, the air inlet is arranged on the right side wall of the humidifier housing, and the wind enters the humidifier from the air inlet, and then evenly passes through each annular rotating disk of the rotating wheel assembly from the right side and the upper right position of the rotating wheel assembly; In one embodiment, the air inlet is arranged at the top of the humidifier housing, and the wind enters the humidifier from the air inlet, and then diffuses from above the humidification wheel, and evenly passes through each annular rotating disk vertically and circumferentially; In addition, in one embodiment, the air inlet may also be arranged at any two of the above three positions; It is preferred to set air inlets at the above three positions at the same time, so that the wind can enter the humidifier in a 360° surrounding manner and pass through the rotor assembly. The wind flows from the periphery of the rotor assembly to the center, and then disperses from the air outlet, ensuring that the effective evaporation area of ​​each annular turntable is the largest, the air volume is the largest, and the humidification efficiency is the best. The humidification efficiency of a single rotor assembly is improved equally, and the air volume is also evenly distributed. The wheel assembly 2 is rotatably mounted in the inner cavity of the humidifier housing 1, and has a hollow cavity 202 inside. In the circumferential direction, there are a plurality of ventilation gaps 205 connecting the outer space of the wheel assembly 2 with the hollow cavity 202. The hollow cavity 202 and the ventilation gaps 205 are provided to facilitate air to enter the hollow cavity 202 from the ventilation gaps 205. Since the air passes through the ventilation gaps 205, and the wheel assembly 2 has a water tank 4 below, during its rotation, the wet air can be concentrated in the hollow cavity 202 and then discharged to the outside, thereby achieving the effect of air humidification. The fan 3 is arranged at one side of the hollow cavity 202 of the rotor assembly 2, and its air inlet 304 is connected with the hollow cavity 202, and the air outlet 305 is close to the top of the humidifier housing 1. The air outlet 305 opens at one side of the top surface of the humidifier, and has the advantages of a wide wind dispersion angle and a large air volume, which can accelerate the circulation of indoor air and can efficiently humidify the indoor environment; The fan 3 draws air into the inner cavity of the humidifier housing 1 along the edge thereof, and enters the hollow cavity 202 from the ventilation gap 205 of the wheel assembly 2 , and is finally discharged from the air outlet 305 of the fan 3 .

[0035] Specifically, the wheel assembly 2 includes a plurality of coaxial and synchronously rotatably connected annular turntables 201, and the ventilation gap 205 is located between two adjacent annular turntables 201. In this example, the surface of the annular turntable 201 has through holes 2011 evenly distributed around its center. After the through holes 2011 on all the annular turntables 201 correspond one to one, the connecting rod 203 is installed to achieve synchronous rotation connection of multiple annular turntables 201. The end of the connecting rod 203 can be axially positioned by a buckle or a nut to avoid axial movement between the annular turntables 201. In addition, the edge of the through hole 2011 of the annular turntable 201 has a convex ring 2012 protruding along its axial direction. When assembling two adjacent annular turntables 201, the end faces of the convex ring 2012 contact each other, so that the ventilation gap 205 is formed between the two adjacent annular turntables 201.

[0036] Among them, the wheel assembly 2 also includes a mechanism for realizing the rotation of the wheel assembly 2, including a ring gear that is coaxial and fixedly connected to the wheel assembly 2, and a gear located inside the humidifier housing 1 and meshing with the ring gear. When the gear is driven by a power source such as an electric motor, the rotation of the wheel assembly 2 can be realized. The structure and principle of this part belong to conventional technical means in the prior art and will not be elaborated here.

[0037] Specifically, the annular rotating disk 201 at one end away from the fan 3 is a centrally closed structure. Figure 8 As shown, the middle of an annular turntable 201 at the outermost portion of the wheel assembly 2 is in a closed state, so as to prevent air from entering the hollow cavity 202 from the middle position of the annular turntable 201 .

[0038] Specifically, the outer surface of the annular rotating disk 201 away from the end of the fan 3 has a gripping handle 204 protruding outward. Figure 8 As shown, in this example, the gripping handle 204 is integrally connected to the outermost annular turntable 201, and is configured to facilitate the movement of the rotating wheel assembly 2, thereby facilitating disassembly and assembly.

[0039] Specifically, the fan 3 includes an impeller 301, which is located at an external position at one end of the hollow cavity 202. More specifically, the axis of the impeller 301 may coincide with or not coincide with the axis of the hollow cavity 202, and the impeller 301 is arranged at a position outside the hollow cavity 202, that is, a suction (or induced wind) method is adopted, so that the direction of the wind can be controlled; the air inlet 304 is located at one end of the impeller 301 close to the rotor assembly 2, and also includes a motor 303, which can drive the impeller 301 to rotate, thereby realizing the flow of air.

[0040] Specifically, the fan 3 includes a shell 302, and the shell 302 has an upwardly extending air outlet channel 306 inside, wherein the air outlet 305 of the fan 3 is located at the end of the air outlet channel 306, and the cross-sectional width of the air outlet channel 306 is gradually increased from bottom to top, so as to quickly diffuse the humid air to the outside.

[0041] This humidifier air duct structure, when working, the fan 3 as a power source can make air enter the humidifier from both sides of the humidifier housing 1. At the same time, the wetted annular turntable 201 rotates inside the humidifier housing 1, and the air can flow from the ventilation gap 205 between the annular turntables 201 to the central hollow cavity 202, so that the air becomes humid air. The humid air finally passes through the impeller 301 of the fan 3 and is guided upward from the air outlet channel 306 and discharged from the air outlet 305 to achieve the humidification effect of the environment. During the humidification process, the ventilation gap 205 between each two adjacent annular turntables 201 can be made to have wind passing evenly, the effective evaporation area is increased, and the humidification amount is doubled. At the same time, the humidification amount only needs to be controlled by controlling the air volume of the fan 3. The ventilation gap 205 between the two adjacent annular turntables 201 is small, so the wind speed is fast. Regardless of the air volume, the air volume passing through each ventilation gap 205 is uniform, which ensures the effective use of the humidification wheel and significantly improves the humidification efficiency.

[0042] The embodiment of the present application also discloses a humidifier, including the above-mentioned air duct structure, and further including a water receiving tray 5, which is installed inside the humidifier casing 1, and the left and right sides of the water receiving tray 5 are provided with support members 501 for supporting and rotating the wheel assembly 2, and the wheel assembly 2 is installed on the water receiving tray 5 and in contact with the support members 501. Specifically, both ends of the support member 501 have flange-like structures, so that the wheel assembly 2 is located between the two flange structures, thereby avoiding the wheel assembly 2 from getting stuck during rotation. In this example, the water receiving tray 5 is a box-like structure with an upper opening, and a certain amount of water can be stored inside it. The lower part of the wheel of the humidifier can be immersed in water. In this way, when the wheel rotates, the water can be brought up, and the humid air can be blown into the outside of the humidifier (indoors) under the action of wind, thereby achieving a humidification effect. This humidification principle, the installation structure and principle of the wheel are all conventional means in the prior art, and will not be elaborated here.

[0043] In addition, the water circulation system of the humidifier further includes a water tank 4, a water outlet pipe 7 and a water return pipe 9, wherein: The water outlet pipe 7 is connected to the water tank 4 and the water receiving tray 5 and is configured to guide the liquid in the water tank 4 to the water receiving tray 5; The water return pipe 9 is connected to the water tank 4 and the water receiving tray 5 and is configured to guide the liquid in the water receiving tray 5 into the water tank 4; Specifically, water pumps are installed on the return pipe 9 and the outlet pipe 7. Figure 12-13 As shown, the water pump in the middle of the water outlet pipe 7 is the water outlet pump 6, and the water pump in the middle of the water return pipe 9 is the water return pump 8. The two water pumps can work independently under the control of the humidifier control system, thereby achieving different effects of water in the water tank 4 flowing to the water receiving tray 5, and water in the water receiving tray 5 flowing to the water tank 4. More specifically, one end of the water outlet pipe 7 close to the water tank 4 is connected to the water outlet 401 below the water tank 4, and after passing through the water outlet pump 6, the other end is placed above the water receiving tray 5; the return water pipe 9 also connects the internal cavity of the water tank 4 and the internal cavity of the water receiving tray 5. Specifically, a pumping component 10 is installed at one end of the return water pipe 9, and the water suction pipe 1001 of the pumping component 10 can be immersed in the water of the water receiving tray 5. The other end of the return water pipe 9 is connected to the humidifier housing 1, and its internal cavity is connected to the internal cavity of the water receiving tank 102 on the humidifier housing 1. Since the water receiving tank 102 is connected to the internal cavity of the water tank 4, the effect of being connected to the internal cavity of the water tank 4 is achieved.

[0044] When the amount of liquid in the water receiving tray 5 is lower than a threshold value, the liquid in the water tank 4 can enter the water receiving tray 5 through the water outlet pipe 7 to replenish the amount of liquid in the water receiving tray 5 .

[0045] Specifically, it also includes a humidifier casing 1, the water receiving tray 5 is located inside the humidifier casing 1, and the water tank 4 is fixed on the humidifier casing 1. In this example, the water receiving tray 5 is installed near the bottom of the humidifier casing 1, and the water tank 4 is arranged outside the humidifier casing 1, and a visible window is arranged on the outer surface of the water tank 4. In this example, the casing near the outside of the water tank 4 is arranged as a transparent structure, or the entire water tank 4 is made of transparent material, so that the user can observe the changes in the water level in the water tank 4 and replenish the water in the water tank 4 in time.

[0046] Specifically, a concave water receiving groove 102 is provided inside the humidifier casing 1, and one end of the root of the water receiving groove 102 extends toward the direction of the water tank 4, and the liquid is introduced into the water tank 4 from the water receiving groove 102. In this example, since the overall width of the water tank 4 is relatively small, the opening of the water tank 4 is relatively small (this is to save space and make the humidifier structure more compact). Therefore, a water receiving groove 102 with a width greater than the width of the water tank 4 is designed on the humidifier casing 1 above the opening of the water tank 4, so that the water in the water adding and returning process can first enter the water receiving groove 102, and then flow into the water tank 4.

[0047] Specifically, the top of the humidifier housing 1 has a concave water inlet 103, which is connected to the water receiving tank 102, so that the user can add water easily.

[0048] The return water pipe 9 is provided with a pumping member 10 at one end close to the water receiving tray 5 , and the pumping member 10 is rotatably installed above the water receiving tray 5 ; the other end of the return water pipe 9 is communicated with the inner cavity of the water tank 4 .

[0049] Specifically, the pumping member 10 includes a rotating shaft 1002, which is rotatably mounted on a mounting bracket 11 fixed inside the humidifier. A torsion spring 12 is sleeved on the rotating shaft 1002, so that the pumping member 10 always flips in a specified direction when not affected by external force.

[0050] More specifically, the pumping member 10 also includes a water suction pipe 1001 fixedly mounted at one end of the rotating shaft 1002 and perpendicular to the rotating shaft 1002, the end of the rotating shaft 1002 has a joint 1004 connected to the water suction pipe 1001, the joint 1004 is connected to the end of the return pipe 9, and a first limiting rod 1003 and a second limiting rod 1005 extending in the radial direction thereof are arranged outside the rotating shaft 1002, wherein the first limiting rod 1003 and the second limiting rod 1005 are mainly used to limit the rotation stroke of the rotating shaft 1002, in this state, the water suction pipe 1001 can be connected to the water receiving portion 1002 when the water is received. The inside of the tray 5 is in a certain tilted state, so even if the water suction pipe 1001 is a hose, it can prevent it from bending or folding, and will not affect the water absorption effect. In this state, the water suction pipe 1001 can touch the lowest point inside the water receiving tray 5, thereby draining the water in the water receiving tray 5 without any residual water. When the rotating shaft 1002 rotates forward to the limit state, the first limit rod 1003 can contact the inner wall of the humidifier casing 1 to achieve limiting. When the rotating shaft 1002 rotates reversely to the limit state, the second limit rod 1005 can contact the inner wall of the water receiving tray 5 to achieve a limiting effect.

[0051] In this example, the mounting bracket 11 is fixed on the humidifier housing 1 and is located above the water receiving tray 5. In the natural state, that is, when the pumping member 10 is only subjected to the force of the torsion spring 12, the water suction pipe 1001 of the pumping member 10 can be turned over to the position above the water receiving tray 5, that is, the water suction pipe 1001 is in a state roughly parallel to the horizontal plane. In this state, there is no interference from other parts around the water receiving tray 5, which can facilitate users to disassemble or install the water receiving tray 5. When the pumping member 10 is turned over by external force, that is, after the rotary wheel is installed inside the water receiving tray 5, the rotary wheel can apply force to the pumping member 10, so that the water suction pipe 1001 of the pumping member 10 is in an inclined state, and the end of the water suction pipe 1001 is immersed in the water. In this way, after the return water pump 8 is started, the water in the water receiving tray 5 can be introduced into the water tank 4 through the water suction pipe 1001 and the return water pipeline 9.

[0052] Specifically, a liquid level sensor (not shown in the figure) is installed inside the water receiving tray 5 to monitor the water level in the water receiving tray 5 in real time. The liquid level sensor is electrically connected to the control system of the humidifier and can send a signal when the water level is lower than a certain threshold. Then the control system controls the water outlet pump 6 to work and timely introduce the water in the water tank 4 into the water receiving tray 5 through the water outlet pipe 7 to achieve the effect of water replenishment. The structure and principle of the electrical connection of the liquid level sensor, the humidifier control system and the water outlet pump 6 belong to the conventional means for realizing electrical control in the prior art, and will not be described in detail here.

[0053] Since the humidifier of this embodiment is equipped with a water tank 4, the water level of the water tank 4 can be controlled according to demand, making the machine more intelligent. It can control the humidification efficiency not only by controlling the air volume of the fan, but also by controlling the water volume of the bottom water tank 4, making the humidification amount more accurate; specifically, when the water volume of the water receiving tray 5 is insufficient, the water in the water tank 4 can be replenished into the water receiving tray 5 in time, so that there is always enough water in the water receiving tray 5, so that the wheel can carry enough water when rotating, thereby improving the humidification effect. And when the humidifier is not used for a long time, the water in the water receiving tray 5 can be introduced into the water tank 4, so that there is no residual water in the water receiving tray 5, which can avoid the situation that the inside of the humidifier becomes moldy and smelly due to residual water.

[0054] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. The humidifier air duct structure is characterized by: include: A humidifier casing (1) has an air inlet (101) on its surface, and the air inlet (101) connects the inner cavity of the humidifier casing (1) with the outside; A rotor assembly (2) rotatably mounted in the inner cavity of the humidifier housing (1), having a hollow cavity (202) therein and a plurality of ventilation gaps (205) in the circumferential direction thereof for connecting the outer space of the rotor assembly (2) with the hollow cavity (202) therein; The fan (3) is arranged at one side of the hollow cavity (202) of the rotor assembly (2), the air inlet (304) of the fan is connected to the hollow cavity (202), and the air outlet (305) is close to the top of the humidifier housing (1); The fan (3) draws air along the edge of the humidifier housing (1) into its inner cavity, and enters the hollow cavity (202) from the ventilation gap (205) of the wheel assembly (2), and is finally discharged from the air outlet (305) of the fan (3).

2. The humidifier air duct structure according to claim 1, characterized in that: The air inlet (101) is provided at at least one position of the left wall, the right wall, and the top wall of the humidifier housing (1).

3. The humidifier air duct structure according to claim 1, characterized in that: The wheel assembly (2) comprises a plurality of coaxial annular rotating disks (201) connected to each other in synchronous rotation, and the ventilation gap (205) is located between two adjacent annular rotating disks (201).

4. The humidifier air duct structure according to claim 3, characterized in that: The annular rotating disk (201) at one end away from the fan (3) is a centrally closed structure, and a gripping handle (204) protruding outwards is provided on the outer surface of the annular rotating disk (201) at one end away from the fan (3).

5. The humidifier air duct structure according to claim 1, characterized in that: The fan (3) comprises: A housing (302), wherein the housing (302) has an air outlet channel (306) extending upwards, and the cross-sectional width of the air outlet channel (306) is gradually increased from bottom to top; An impeller (301), the impeller (301) is located outside one end of the hollow cavity (202), and the impeller (301) is arranged outside the hollow cavity (202), and the air inlet (304) is located at one end of the impeller (301) close to the rotor assembly (2).

6. A humidifier, characterized in that: It comprises the humidifier air duct structure as described in any one of claims 1-5.

7. The humidifier according to claim 6, characterized in that Also includes: A water receiving tray (5) is installed inside the humidifier housing (1), and support members (501) for supporting the rotating wheel assembly (2) and capable of rotating are provided on the left and right sides of the water receiving tray (5), and the rotating wheel assembly (2) is installed on the water receiving tray (5) and is in contact with the support members (501); A water tank (4) mounted on the humidifier housing (1); A water outlet pipeline (7) connected to the water tank (4) and the water receiving tray (5), and configured to guide the liquid in the water tank (4) into the water receiving tray (5); A water return pipeline (9), connected to the water tank (4) and the water receiving tray (5), and configured to guide the liquid in the water receiving tray (5) into the water tank (4); When the amount of liquid in the water receiving tray (5) is lower than a threshold value, the liquid in the water tank (4) can enter the water receiving tray (5) through the water outlet pipe (7) to replenish the amount of liquid in the water receiving tray (5); when the humidifier is idle, the liquid can be introduced from the water receiving tray (5) into the water tank (4).

8. The humidifier according to claim 7, characterized in that: The humidifier housing (1) is provided with a concave water receiving groove (102) inside, and one end of the root of the water receiving groove (102) extends in the direction of the water tank (4), so that liquid can be introduced from the water receiving groove (102) into the water tank (4); The top of the humidifier housing (1) is provided with a concave water inlet (103), and the water inlet (103) is connected to the water receiving tank (102).

9. The humidifier according to claim 7, characterized in that: A pumping member (10) is provided at one end of the water return pipe (9) close to the water receiving tray (5), and the pumping member (10) is rotatably mounted above the water receiving tray (5); the other end of the water return pipe (9) is in communication with the inner cavity of the water tank (4); The water pumping member (10) comprises a rotating shaft (1002), the rotating shaft (1002) being rotatably mounted on a mounting bracket (11) fixedly arranged inside the humidifier, and a torsion spring (12) being sleeved on the rotating shaft (1002) so that the water pumping member (10) always turns in a specified direction when no external force is applied; The pumping member (10) further comprises a water suction pipe (1001) fixedly mounted at one end of the rotating shaft (1002) and perpendicular to the rotating shaft (1002); the end of the rotating shaft (1002) comprises a joint (1004) connected to the water suction pipe (1001); the joint (1004) is connected to the end of the return water pipeline (9); and a first limiting rod (1003) and a second limiting rod (1005) extending in a radial direction of the rotating shaft (1002) are arranged outside the rotating shaft (1002).

10. The humidifier according to claim 7, characterized in that The outer surface of the water tank (4) is provided with a visual window; A liquid level sensor is installed inside the water receiving tray (5).

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