Water tank module and fan

Abstract

The application provides a water tank module and a fan. The water tank module comprises a shell, a mist guide barrel and an atomizer. The shell comprises a bottom wall and a side wall. The bottom wall comprises a middle part and an edge part connected to the outer periphery of the middle part. The middle part is outwardly recessed towards the water tank module. The atomizer is arranged in the mist guide barrel. The mist guide barrel is arranged in the shell and abuts against the middle part. The bottom part of the mist guide barrel is provided with a communication hole communicating with the shell. In the application, the middle part of the bottom wall of the shell is recessed. Thus, when the mist guide barrel abuts against the recessed middle part, the atomizer can be lowered to a lower position than in the related art, so as to consume the residual water in the shell and the mist guide barrel, reduce the residual water in the shell and the mist guide barrel, and improve the atomization time and atomization effect.

Description

Technical Field

[0001] This application belongs to the field of atomization technology, specifically relating to water tank modules and fans. Background Technology

[0002] The water tank module is mainly used to store water and relies on an internal atomizer to atomize the water into mist and deliver it outwards. The atomizer can move up and down with the water level. However, when the atomizer drops to a certain level, it will stop working. At this time, there will still be a lot of residual water in the water tank module that cannot be atomized, thus reducing the atomization time and failing to meet the user's needs. Utility Model Content

[0003] In view of this, the first aspect of this application provides a water tank module, the water tank module including a shell, a mist guide barrel, and an atomizer, the shell including a bottom wall and a side wall, the bottom wall including a middle portion and an edge portion connected to the outer periphery of the middle portion, the middle portion being recessed towards the outside of the water tank module, the atomizer being disposed inside the mist guide barrel, the mist guide barrel being disposed inside the shell and abutting the middle portion, and the bottom of the mist guide barrel having a connecting hole communicating with the inside of the shell.

[0004] The water tank module provided in the first aspect of this application has a recessed bottom wall in the outer shell. When the mist guide barrel abuts against the recessed middle, the atomizer can drop to a lower position than in the related art, thereby consuming the residual water in the outer shell and the mist guide barrel, reducing the residual water in the outer shell and the mist guide barrel, and improving the atomization time and atomization effect.

[0005] Based on this, the distance between the mist guide barrel and the edge is 5mm-15mm.

[0006] Based on this, the atomizer includes a housing, a first atomizing core, a second atomizing core, and a circuit board disposed within the housing, wherein the circuit board is electrically connected to the first atomizing core and the second atomizing core.

[0007] Based on this, the first atomizing core has a first atomizing surface, the second atomizing core has a second atomizing surface, and the first atomizing surface is higher than the second atomizing surface.

[0008] Based on this, the first atomizing core is higher than the second atomizing core, and the circuit board is set accordingly to the first atomizing core.

[0009] Based on this, the water tank module also includes a flow guide, which is disposed on the atomizer. The flow guide has a through hole. When the atomizer is working, it can agitate water into an upward spray of water. The water column can pass through the through hole and fall onto the flow guide, and then fall back into the mist guide barrel from the outer periphery of the flow guide.

[0010] Based on this, the mist guide barrel is provided with a first guide part along its axial direction, and the flow guide is provided with a second guide part, with the first guide part and the second guide part being in clearance fit.

[0011] A second aspect of this application provides a water tank module, the water tank module including a shell, a mist guide barrel, and an atomizer, the atomizer being disposed inside the mist guide barrel, the mist guide barrel being disposed inside the shell and abutting against the bottom wall of the shell, the bottom of the mist guide barrel having a connecting hole communicating with the shell, the atomizer including a first atomizing core and a second atomizing core, the first atomizing core having a first atomizing surface, the second atomizing core having a second atomizing surface, the first atomizing surface being higher than the second atomizing surface.

[0012] The water tank module provided in the second aspect of this application employs an atomizer composed of two atomizing cores, wherein the first atomizing surface of the first atomizing core is higher than the second atomizing surface of the second atomizing core. Therefore, when the first atomizing core with the higher atomizing surface stops working, the second atomizing core with the lower atomizing surface can continue to work, thereby continuing to consume the residual water in the outer shell and the mist guide can, reducing the amount of residual water in the outer shell and the mist guide can, and improving the atomization time and atomization effect.

[0013] Based on this, the bottom wall includes a central part and an edge part connected to the outer periphery of the central part, the central part is recessed towards the outside of the water tank module, and the mist guide barrel abuts against the central part.

[0014] A third aspect of this application provides a fan, which includes an air outlet module and a water tank module as provided in the first or second aspect of this application. The air outlet module is provided with a mist inlet and a mist outlet. The water tank module is detachably connected to the air outlet module, and the water mist in the water tank module can enter the mist inlet and be discharged from the mist outlet.

[0015] The fan provided in the third aspect of this application, by adopting the water tank module provided in the first or second aspect of this application, can further consume the residual water in the outer shell and the mist guide barrel, thereby reducing the residual water in the outer shell and the mist guide barrel and improving the atomization time and atomization effect. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the embodiments of this application will be described below.

[0017] Figure 1 This is a three-dimensional structural diagram of the water tank module in one embodiment of this application.

[0018] Figure 2 for Figure 1 The exploded view of the water tank module shown.

[0019] Figure 3 for Figure 2 An exploded view of the water tank module from another perspective.

[0020] Figure 4 for Figure 1 The diagram shows a cross-sectional view of the water tank module.

[0021] Figure 5 for Figure 1 A cross-sectional schematic diagram of the water tank module from another direction.

[0022] Figure 6 This is a three-dimensional structural diagram of the water tank module in another embodiment of this application.

[0023] Figure 7 for Figure 6 The diagram shows a cross-sectional view of the water tank module.

[0024] Figure 8 for Figure 6 The top view of the water tank module shown.

[0025] Figure 9 This is a three-dimensional structural diagram of the fan in one embodiment of this application.

[0026] Figure 10 for Figure 9 The exploded view of the fan shown.

[0027] Label Explanation:

[0028] Water tank module-1, air outlet module-2, mist inlet-2a, mist outlet-2b, fan-3, outer shell-10, side wall-11, bottom wall-12, middle part-121, edge part-122, mist guide barrel-20, connecting hole-200, first guide part-21, atomizer-30, shell-31, first atomizing core-32, first atomizing surface-320, second atomizing core-33, second atomizing surface-330, circuit board-34, air guide-40, through hole-400, second guide part-41. Detailed Implementation

[0029] The following are preferred embodiments of this application. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principles of this application, and these improvements and modifications are also considered to be within the scope of protection of this application.

[0030] Before introducing the technical solution of this application, let's go over the technical issues in related technologies in detail.

[0031] The water tank module primarily stores water and uses an internal atomizer to atomize it into mist for external dispensing. The atomizer can be a float-type atomizer or other types, and it moves up and down with the water level. The water tank module also features a Hall sensor to detect the atomizer's position. When the atomizer descends to a certain position, the Hall sensor detects this and sends a signal, causing the atomizer to stop working. However, at this point, the water in the tank module is not completely consumed; the remaining water is called residual water. Currently, there is a significant amount of residual water in the water tank module, which means the atomization time cannot meet user needs. Furthermore, users often find that adding water requires refilling even when there is still a considerable amount of residual water, which does not meet user expectations.

[0032] In view of this, in order to solve the above problems, this application provides a water tank module, which you can refer to. Figures 1-4 , Figure 1 This is a three-dimensional structural diagram of the water tank module in one embodiment of this application. Figure 2 for Figure 1 The exploded view of the water tank module shown. Figure 3 for Figure 2 An exploded view of the water tank module from another perspective. Figure 4 for Figure 1 The diagram shows a cross-sectional view of the water tank module. This embodiment provides a water tank module 1, which includes a shell 10, a mist guide barrel 20, and an atomizer 30. The shell 10 includes a bottom wall 12 and a side wall 11. The bottom wall 12 includes a central portion 121 and an edge portion 122 connected to the outer periphery of the central portion 121. The central portion 121 is recessed outward from the water tank module 1. The atomizer 30 is disposed inside the mist guide barrel 20. The mist guide barrel 20 is disposed inside the shell 10 and abuts against the central portion 121. The bottom of the mist guide barrel 20 is provided with a connecting hole 200 communicating with the interior of the shell 10.

[0033] The water tank module 1 is mainly used to store water and atomize the water into water mist and send it outward by relying on the internal atomizer 30. The water tank module 1 can be applied to various devices, such as medical devices, household devices, and industrial devices. This embodiment is only used to illustrate the application of the water tank module 1 to the fan 3.

[0034] The water tank module 1 mainly includes a shell 10, a mist guide barrel 20, and an atomizer 30. The shell 10 constitutes the exterior of the water tank module 1, and the interior of the shell 10 can be enclosed to form a receiving space. This receiving space can not only store water but also be used to install other components. The shell 10 is composed of a bottom wall 12 and a side wall 11 that is bent and connected to the bottom wall 12. The bottom wall 12 and the side wall 11 together enclose the receiving space. The mist guide barrel 20 is located inside the shell 10 and is mainly used to house the atomizer 30, restrict the position of the atomizer 30, and provide a guiding basis for the vertical movement of the atomizer 30. In addition, a connecting hole 200 is provided at the bottom of the mist guide barrel 20, which can connect to the interior of the shell 10. Therefore, water inside the shell 10 can flow into the mist guide barrel 20 and be atomized by the atomizer 30. Moreover, because of the connecting hole 200 at the bottom of the mist guide barrel 20, the water level of the entire water tank module 1 is uniform, and there will be no difference in water level inside and outside the mist guide barrel 20.

[0035] The atomizer 30 is a component that atomizes water into a mist. The atomizer 30 can be installed inside the mist guide barrel 20. The atomizer 30 can be a float-type atomizer or other types of atomizer, allowing it to move up and down with the water level. In related technologies, the bottom wall 12 of the outer casing 10 is usually flat, i.e., horizontal. When the atomizer 30 descends to a certain level, it is detected by a Hall sensor and stops working. Residual water will remain inside the outer casing 10 and the mist guide barrel 20. The height of the residual water is the height from the bottom wall 12 to the water surface, let's assume the height is A.

[0036] This embodiment modifies the originally flat bottom wall 12. For example, the bottom wall 12 can consist of a central portion 121 and an edge portion 122 connected to the outer periphery of the central portion 121. In this embodiment, the central portion 121 is recessed outward toward the water tank module 1, that is, the central portion 121 is recessed downward, forming a groove on the basis of the originally flat bottom wall 12. The mist guide 20 is placed at the recessed central portion 121. Therefore, the atomizer 30, which originally could only descend to the flat bottom wall 12, can now descend further due to the recessed central portion 121. Originally, the atomizer 30 stopped working after descending to a certain height, but now, with more space to descend, the atomizer 30 can descend further to a lower position than in related technologies, thereby further consuming the residual water in the outer shell 10 and the mist guide 20, reducing the residual water in the outer shell 10 and the mist guide 20, and improving the atomization time and atomization effect. At this point, the height from the edge 122 of the bottom wall 12 to the water surface can be B, where B is less than A. Furthermore, when adding water, users will notice a significant decrease in the residual water level, which better meets their expectations.

[0037] It is worth noting that although some residual water will be stored in the recessed area due to the indentation of the middle part 121, the size of the middle part 121 is much smaller than that of the bottom wall 12, and there is a mist guide barrel 20 and an atomizer 30 inside. Therefore, the amount of residual water in the recessed area is much smaller than that in related technologies. Overall, the amount of residual water is reduced and the water level is lowered compared to related technologies.

[0038] Please refer to Figure 5 As shown, Figure 5 for Figure 1 The diagram shows a cross-sectional view of the water tank module from another direction. In this embodiment, the distance between the mist guide barrel 20 and the edge portion 122 is 5mm-15mm.

[0039] This embodiment controls the distance between the mist guide canister 20 and the edge portion 122 to be 5mm-15mm. If the distance between the mist guide canister 20 and the edge portion 122 is too small, for example, less than 5mm, the mist guide canister 20 will be too close to the side wall 11 of the outer casing 10, increasing the difficulty of assembling the mist guide canister 20 into the outer casing 10. If the distance between the mist guide canister 20 and the edge portion 122 is too large, for example, greater than 15mm, too much water will accumulate in the recess, increasing the amount of residual water. At the same time, the size of the mist guide canister 20 will be too small, thus affecting the setting of the atomizer 30. Therefore, this embodiment, by keeping the distance between the mist guide canister 20 and the edge portion 122 at 5mm-15mm, can reduce residual water and facilitate assembly.

[0040] Optionally, the distance between the mist guide 20 and the edge 122 can be 5mm, 7mm, 9mm, 11mm, 13mm, or 15mm.

[0041] Please refer to this again. Figure 4 In this embodiment, the atomizer 30 includes a housing 31, a first atomizing core 32, a second atomizing core 33, and a circuit board 34 disposed within the housing 31. The circuit board 34 is electrically connected to the first atomizing core 32 and the second atomizing core 33.

[0042] The atomizer 30 comprises a housing 31, a first atomizing coil 32, a second atomizing coil 33, and a circuit board 34. The housing 31 is mainly used to install and protect the first atomizing coil 32, the second atomizing coil 33, and the circuit board 34. Both the first atomizing coil 32 and the second atomizing coil 33 can atomize independently; therefore, the atomizer 30 provided in this embodiment is a dual-head atomizer 30. The first atomizing coil 32 and the second atomizing coil 33 can be installed inside the housing 31, requiring only the atomizing surface to be exposed. The circuit board 34 is also located inside the housing 31 and electrically connects the first atomizing coil 32 and the second atomizing coil 33, thereby controlling the atomization parameters of the first atomizing coil 32 and the second atomizing coil 33 using the circuit board 34. This embodiment can use one circuit board 34 to simultaneously electrically connect the first atomizing coil 32 and the second atomizing coil 33, achieving a one-to-two connection and simplifying the structure of the atomizer 30.

[0043] In this embodiment, the first atomizing core 32 has a first atomizing surface 320, the second atomizing core 33 has a second atomizing surface 330, and the first atomizing surface 320 is higher than the second atomizing surface 330.

[0044] Each atomizing core has an atomizing surface on its upper surface. For example, the upper surface of the first atomizing core 32 is the first atomizing surface 320, and the upper surface of the second atomizing core 33 is the second atomizing surface 330. When water is placed on the first atomizing surface 320 and the second atomizing surface 330, it can be atomized into water mist. In this embodiment, the first atomizing surface 320 can be higher than the second atomizing surface 330. Under normal circumstances, both the first atomizing surface 320 and the second atomizing surface 330 can perform atomization. However, as water is continuously consumed, the water level gradually decreases, and the atomizer 30 also gradually descends. When the atomizer 30 descends to a certain level and is detected by the Hall sensor, the first atomizing core 32, which has a higher atomizing surface, stops working. However, since the atomizing surface of the second atomizing core 33 is lower, it can continue to work, thereby continuing to consume the residual water in the outer shell 10 and the mist guide canister 20, reducing the residual water in the outer shell 10 and the mist guide canister 20, and improving the atomization time and atomization effect.

[0045] In this embodiment, the first atomizing core 32 is higher than the second atomizing core 33, and the circuit board 34 is arranged corresponding to the first atomizing core 32.

[0046] As can be seen from the above, when the first atomizing surface 320 is higher than the second atomizing surface 330, the first atomizing core 32 is higher than the second atomizing core 33. At this time, the space inside the housing 31 corresponding to the lower second atomizing core 33 is smaller, while the space inside the housing 31 corresponding to the higher first atomizing core 32 is larger. Therefore, in this embodiment, the size of the circuit board 34 can be reduced, and the circuit board 34, which was originally located below the first atomizing core 32 and the second atomizing core 33, can be placed only below the first atomizing core 32, thereby realizing the installation of the circuit board 34.

[0047] In summary, this embodiment does not change the overall size of the atomizer 30, but only adjusts the position and size of the internal components to achieve atomizer 30 with staggered heights.

[0048] Please refer to this as well. Figures 6-7 , Figure 6 This is a three-dimensional structural diagram of the water tank module in another embodiment of this application. Figure 7 for Figure 6 The diagram shows a cross-sectional view of the water tank module. In this embodiment, the water tank module 1 further includes a flow guide 40, which is disposed on the atomizer 30. The flow guide 40 has a through hole 400. When the atomizer 30 is working, it can agitate water into an upward-spraying water column. The water column can pass through the through hole 400 and fall onto the flow guide 40, and then fall back from the outer periphery of the flow guide 40 into the mist guide barrel 20.

[0049] In addition to the aforementioned components, the water tank module 1 may also include a guide member 40. The guide member 40 is positioned above the atomizer 30 and has a through hole 400 for water mist and water column to pass through. When the atomizer core is working, besides atomizing water into mist, it also forms an upward-spraying water column. When the water column falls, it affects the subsequent mist output process, thus reducing the mist volume. In this embodiment, the guide member 40 is added above the atomizer 30, allowing the water column to pass through the through hole 400 and fall onto the guide member 40, i.e., onto the upper surface of the guide member 40, and then fall back from the outer periphery of the guide member 40 into the mist guide barrel 20. This embodiment, through the above arrangement, prevents the water column from falling back down its original path, reducing or even eliminating the impact of the water column on subsequent mist output, thereby increasing the mist volume. Actual product testing shows that it can increase the mist volume by 20%-30%, achieving a significant increase in mist output.

[0050] Optionally, the atomizing surface of the atomizing core in the atomizer 30 can be tilted to make it easier for the water column to fall onto the guide member 40.

[0051] Please refer to this as well. Figure 6 and Figure 8 , Figure 8 for Figure 6 The diagram shows a top view of the water tank module. In this embodiment, the mist guide barrel 20 has a first guide portion 21 along its axial direction, and the flow guide 40 has a second guide portion 41. The first guide portion 21 and the second guide portion 41 are in clearance fit.

[0052] The inner wall of the mist guide barrel 20 is provided with a first guide portion 21 along the axial direction (height direction) of the mist guide barrel 20, and the flow guide 40 is provided with a second guide portion 41. The first guide portion 21 can be a guide post or a guide groove, and the second guide portion 41 can be a guide groove or a guide portion. In this embodiment, only the first guide portion 21 is a guide post and the second guide portion 41 is a guide groove for illustrative purposes. First, the guide post set in the guide groove can serve as the guiding foundation for the lifting and lowering of the atomizer 30. Second, in this embodiment, the guide post and the guide groove can be fitted with a gap, that is, the guide post does not completely abut against the inner wall of the guide groove, but leaves a certain gap. The water mist generated therefrom can also spread upward from the gap, and the water falling on the flow guide 40 can also fall back into the mist guide barrel 20 from the gap.

[0053] Please refer to this again. Figures 1-8 This embodiment provides a water tank module 1, which includes a shell 10, a mist guide barrel 20, and an atomizer 30. The atomizer 30 is disposed inside the mist guide barrel 20, which is disposed inside the shell 10 and abuts against the bottom wall 12 of the shell 10. The bottom of the mist guide barrel 20 is provided with a connecting hole 200 that communicates with the inside of the shell 10. The atomizer 30 includes a first atomizing core 32 and a second atomizing core 33. The first atomizing core 32 has a first atomizing surface 320, and the second atomizing core 33 has a second atomizing surface 330. The first atomizing surface 320 is higher than the second atomizing surface 330.

[0054] The outer casing 10, the mist guide tank 20, the atomizer 30, the first atomizing core 32, and the second atomizing core 33 have been described in detail above, and will not be repeated here. In this embodiment, the first atomizing surface 320 is higher than the second atomizing surface 330. Normally, both the first atomizing surface 320 and the second atomizing surface 330 can atomize. However, as water is continuously consumed, the water level gradually decreases, and the atomizer 30 also gradually descends. When the atomizer 30 descends to a certain level and is detected by the Hall sensor, the first atomizing core 32, with its higher atomizing surface, stops working. However, because the second atomizing core 33 has a lower atomizing surface, it can continue to work, thereby continuing to consume the residual water in the outer casing 10 and the mist guide tank 20, reducing the residual water in the outer casing 10 and the mist guide tank 20, and improving the atomization time and atomization effect.

[0055] In this embodiment, the bottom wall 12 includes a central portion 121 and an edge portion 122 connected to the outer periphery of the central portion 121. The central portion 121 is recessed outward toward the water tank module 1, and the mist guide barrel 20 abuts against the central portion 121.

[0056] This embodiment modifies the originally flat bottom wall 12. For example, the bottom wall 12 can consist of a central portion 121 and an edge portion 122 connected to the outer periphery of the central portion 121. In this embodiment, the central portion 121 is recessed outward toward the water tank module 1, that is, the central portion 121 is recessed downward, forming a groove on the basis of the originally flat bottom wall 12. The mist guide 20 is placed at the recessed central portion 121. Therefore, the atomizer 30, which originally could only descend to the flat bottom wall 12, can now descend further due to the recessed central portion 121. Originally, the atomizer 30 stopped working after descending to a certain height, but now, with more space to descend, the atomizer 30 can descend further to a lower position than in related technologies, thereby further consuming the residual water in the outer shell 10 and the mist guide 20, reducing the residual water in the outer shell 10 and the mist guide 20, and improving the atomization time and atomization effect. Furthermore, users will notice a significant decrease in the residual water level when adding water, which better meets their expectations.

[0057] Furthermore, other embodiments described above in this application can also be applied to this solution, for example:

[0058] In this embodiment, the distance between the mist guide barrel 20 and the edge portion 122 is 5mm-15mm.

[0059] In this embodiment, the first atomizing core 32 is higher than the second atomizing core 33, and the circuit board 34 is arranged corresponding to the first atomizing core 32.

[0060] In this embodiment, the water tank module 1 further includes a flow guide 40, which is disposed on the atomizer 30. The flow guide 40 has a through hole 400. When the atomizer 30 is working, it can agitate water into an upward spray of water. The water column can pass through the through hole 400 and fall onto the flow guide 40, and then fall back from the outer periphery of the flow guide 40 into the mist guide barrel 20.

[0061] In this embodiment, the mist guide barrel 20 is provided with a first guide portion 21 along its axial direction, and the flow guide 40 is provided with a second guide portion 41. The first guide portion 21 and the second guide portion 41 are in clearance fit.

[0062] Please refer to this as well. Figures 9-10 , Figure 9 This is a three-dimensional structural diagram of the fan in one embodiment of this application. Figure 10 for Figure 9The image shows an exploded view of a fan. This embodiment provides a fan 3, which includes an air outlet module 2 and a water tank module 1 as provided in the above-described embodiment of this application. The air outlet module 2 is provided with a mist inlet 2a and a mist outlet 2b. The water tank module 1 is detachably connected to the air outlet module 2, and the water mist in the water tank module 1 can enter the mist inlet 2a and be discharged from the mist outlet 2b.

[0063] The fan 3 provided in this embodiment includes, but is not limited to, household fans and industrial fans in terms of usage scenarios, and includes, but is not limited to, desktop fans and tower fans in terms of type. This embodiment only uses a tower fan for illustrative purposes. The air outlet module 2 is mainly used for air outlet. The water tank module 1 is detachably connected to the air outlet module 2 to facilitate the addition of water and cleaning of the water tank module 1. The air outlet module 2 is provided with a mist inlet 2a and a mist outlet 2b. The water mist in the water tank module 1 can enter the mist inlet 2a and be discharged from the mist outlet 2b, and blown to a farther position with the cooperation of the air outlet module 2 to improve the cooling effect.

[0064] The fan 3 provided in this embodiment, by adopting the water tank module 1 provided in the above embodiment of this application, can further consume the residual water in the outer shell 10 and the mist guide barrel 20, thereby reducing the residual water in the outer shell 10 and the mist guide barrel 20 and improving the atomization time and atomization effect.

[0065] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0066] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise expressly specified. Moreover, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0067] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," "fixing," etc., should be interpreted broadly. For example, they can refer to a connection, a detachable connection, or an integral part. They can refer to a mechanical connection or an electrical connection. They can refer to a direct connection or an indirect connection through an intermediate medium, or the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0068] The foregoing has provided a detailed description of the embodiments of this application, elucidating and explaining the principles and implementation methods of this application. These descriptions are merely for the purpose of aiding understanding the method and core ideas of this application. However, the content of this specification should not be construed as a limitation of this application. Those skilled in the art can make various modifications and variations to this application without departing from its spirit and scope. These modifications and variations fall within the scope of the claims of this application and their equivalents.

Claims

1. A water tank module, characterized in that, The water tank module includes an outer shell, a mist guide barrel, and an atomizer. The outer shell includes a bottom wall and side walls. The bottom wall includes a middle portion and an edge portion connected to the outer periphery of the middle portion. The middle portion is recessed towards the outside of the water tank module. The atomizer is disposed inside the mist guide barrel. The mist guide barrel is disposed inside the outer shell and abuts against the middle portion. The bottom of the mist guide barrel is provided with a connecting hole that communicates with the inside of the outer shell.

2. The water tank module as described in claim 1, characterized in that, The distance between the mist guide barrel and the edge is 5mm-15mm.

3. The water tank module as described in claim 1, characterized in that, The atomizer includes a housing, a first atomizing core, a second atomizing core disposed within the housing, and a circuit board, wherein the circuit board is electrically connected to the first atomizing core and the second atomizing core.

4. The water tank module as described in claim 3, characterized in that, The first atomizing core has a first atomizing surface, and the second atomizing core has a second atomizing surface, wherein the first atomizing surface is higher than the second atomizing surface.

5. The water tank module as described in claim 4, characterized in that, The first atomizing core is higher than the second atomizing core, and the circuit board is set accordingly to the first atomizing core.

6. The water tank module as described in claim 1, characterized in that, The water tank module also includes a flow guide, which is disposed on the atomizer. The flow guide has a through hole. When the atomizer is working, it can agitate water into an upward spray of water. The water column can pass through the through hole and fall onto the flow guide, and then fall back from the outer periphery of the flow guide into the mist guide barrel.

7. The water tank module as described in claim 6, characterized in that, The mist guide barrel is provided with a first guide part along its axial direction, and the flow guide is provided with a second guide part, with the first guide part and the second guide part being in clearance fit.

8. A water tank module, characterized in that, The water tank module includes a shell, a mist guide barrel, and an atomizer. The atomizer is disposed inside the mist guide barrel, which is disposed inside the shell and abuts against the bottom wall of the shell. The bottom of the mist guide barrel has a connecting hole that connects to the inside of the shell. The atomizer includes a first atomizing core and a second atomizing core. The first atomizing core has a first atomizing surface, and the second atomizing core has a second atomizing surface. The first atomizing surface is higher than the second atomizing surface.

9. The water tank module as described in claim 8, characterized in that, The bottom wall includes a central portion and an edge portion connected to the outer periphery of the central portion. The central portion is recessed outward toward the water tank module, and the mist guide barrel abuts against the central portion.

10. A fan, characterized in that, The fan includes an air outlet module and a water tank module as described in any one of claims 1-9. The air outlet module is provided with a mist inlet and a mist outlet. The water tank module is detachably connected to the air outlet module, and the water mist in the water tank module can enter the mist inlet and be discharged from the mist outlet.

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