sill panel
By designing a window sill fan that combines a fan and a misting system, indoor and outdoor air exchange, humidification, and cooling are achieved. This solves the problems of existing fans having limited functionality and inconvenient installation, and provides convenience and safety for use in multiple situations.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 张小军
- Filing Date
- 2025-06-17
- Publication Date
- 2026-06-26
AI Technical Summary
Existing fans are difficult to achieve indoor and outdoor air exchange, floor-standing humidifier fans are bulky and inconvenient to move, and traditional exhaust fans are fixed in installation and have limited functions, making it difficult to meet the needs of multiple occasions.
Design a window sill fan that combines a fan system and a misting system. It uses a detachable water tank and atomizing module, and the fan blades drive the mist diffusion to achieve indoor and outdoor air exchange, humidification and cooling. It is equipped with a multi-functional electrical component to control and protect the system safety.
It achieves rapid exchange and uniform humidification of indoor and outdoor air, has a simple structure, is easy to use, is suitable for multiple occasions, and has high safety. It integrates indoor and outdoor air exchange and humidification functions into one unit.
Smart Images

Figure CN224415270U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electric fans, and in particular to a window sill fan that can be hung or fixed on a windowsill, can spray humidification, and can push outdoor air into the room for convection exchange. Background Technology
[0002] Existing fans (such as electric fans, bladeless fans, circulating fans, humidifying fans, etc.) use motors to drive the blades or airflow multipliers to accelerate the local circulation of indoor air, creating an artificial breeze to enhance human comfort. However, current fans of this type are limited to indoor air circulation and have difficulty exchanging air with the outside. Mist fans with humidification functions and cooling fans that use water curtains for cooling are all floor-standing and bulky, making them inconvenient to use. Furthermore, household exhaust fans (i.e., ventilation fans that draw in fresh air for ventilation) are available in ceiling-mounted, wall-mounted, or window-mounted types. They are installed by drilling holes in the ceiling, wall, or window glass and then embedding them in the wall. These exhaust fans are fixed, making them difficult to move and clean! Additionally, traditional exhaust fans focus on dehumidification and exhaust, lacking humidification capabilities.
[0003] As can be seen from the above, the various types of fans or exhaust fans mentioned above either have the disadvantages of being inconvenient to use, unsuitable for the occasion, or having a relatively limited range of functions. Summary of the Invention
[0004] The purpose of this invention is to address the shortcomings of existing fans in terms of some functions and structure, and to provide a window sill fan that is convenient and safe to use, and integrates the functions of promoting indoor and outdoor air exchange and indoor humidification and cooling.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A window sash includes a housing, a fan system, a misting system, and an electrical component, wherein:
[0007] The upper middle part of the housing is provided with an air duct formed by a communicating air inlet and air outlet; a motor mounting base is provided in the air duct; and disassembly plates are provided on both sides of the housing for easy water addition, replacement and maintenance.
[0008] The fan system includes a front grille anti-detachment component, a front grille, a front grille mounting component, fan blades, a motor, and a rear grille. The motor is housed in the motor mounting base, and its motor shaft is connected to the fan blades. The front grille is rotatably fitted over the rotating sleeve of the front grille mounting component and positioned by the front grille anti-detachment component. The front grille mounting component is mounted on the motor mounting base of the housing. The rear grille is located in the air inlet and does not protrude laterally from the rear wall of the housing.
[0009] The spray system includes a water tank, an atomizing chamber, an atomizing module, a mist flow pipe, a fan, a mist guide box, a connecting pipe, and a water pump. The water tank and the atomizing chamber are located inside the bottom of the housing and are detachably connected via a connecting pipe equipped with a water pump and a shut-off valve. The atomizing module is located in the atomizing chamber. The mist atomized by the atomizing module enters the mist flow pipe and is then pushed by the fan to the mist guide box. The mist guide box is connected to the front mesh cover mounting component. Multiple mist nozzles are provided on the mist guide box.
[0010] The electrical components are connected to the fan system and the spray system, and are also connected to the function operation key group located on the housing; the function operation key group includes a fan mode operation key group and a misting mode operation key group.
[0011] In the improved version of the above-mentioned window sill sash, multiple hanging holes are provided on the housing.
[0012] In the improved version of the above-mentioned window sill sash, the wall of the air inlet is a flared bevel, and the diameter of its widest point is 20% to 50% larger than that of the air outlet.
[0013] In the improved version of the above-mentioned window sill, an anti-tipping switch device is included in the electrical part.
[0014] In the improved version of the aforementioned window sill fan, the electrical component includes an intelligent temperature control protection device for the atomization chamber.
[0015] In the above-mentioned improvement scheme for the window sill, the electrical part includes a water storage tank capacitor level device; a vacuum breaker valve is installed on the side wall of the main body of the water storage tank.
[0016] In the improved version of the above-mentioned window sill fan, the electrical part includes an atomizing chamber capacitor level device.
[0017] In the improved version of the above-mentioned window sill fan, the electrical part includes an air humidity detection and control system; the housing is provided with an air humidity detector connected to the air humidity detection and control system at its air inlet.
[0018] In the above-mentioned improved window sill fan design, the fan mode operation key group includes a fan speed key and a fan timer key, and the atomization mode operation key group includes an atomization speed key and an atomization timer key.
[0019] In the improved design of the above-mentioned window sill fan, a water receiving box is provided below the mist guide box and connected to the mist guide box; a vacuum breaking valve is provided on the side wall of the atomization chamber, and an exhaust valve is provided on the top of the atomization chamber; a shut-off valve is provided near the fan end of the mist flow pipe; and a vacuum breaking valve is installed on the side wall of the atomization chamber.
[0020] Compared with existing fan technology, the advantages of this invention are as follows: Because it includes a housing, a fan system, a spray system, and electrical components, and the housing is designed in a shape similar to a traditional fan, it occupies little space. It can be easily carried and placed by one person on a windowsill or vent where there is a separation between indoors and outdoors, blowing air inwards to encourage outdoor air to flow into the room and accelerate the exchange of indoor and outdoor air. Furthermore, since the fan system and spray system can work together, the airflow from the fan promotes more even and rapid diffusion of the mist sprayed by the spray system within the room, thus simultaneously achieving humidification and rapid exchange of indoor and outdoor air. Adding or changing water is easily done by opening the disassembly plate on one side of the water tank and unscrewing the water tank's sealing cap. Therefore, this invention has a simple structure, is easy to use, and is superior in promoting indoor and outdoor air exchange and cooling the room. Thus, this invention is convenient and safe to use, combining the promotion of indoor and outdoor air exchange with indoor humidification and cooling in one integrated unit.
[0021] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments: Attached Figure Description
[0022] Figure 1 This is a perspective view of an embodiment of the present utility model;
[0023] Figure 2 This is a rear view of an embodiment of the present utility model;
[0024] Figure 3 This is a three-dimensional schematic diagram of a half-cut embodiment of the present invention;
[0025] Figure 4 This is a schematic diagram of the structure of an embodiment of the present utility model. Figure 1 ;
[0026] Figure 5 This is a schematic diagram of the structure of an embodiment of the present utility model. Figure 2 ;
[0027] Figure 6 This is an assembly diagram of an embodiment of the present invention. Figure 1 ;
[0028] Figure 7 This is an assembly diagram of an embodiment of the present invention. Figure 2 . Detailed Implementation
[0029] This utility model is a window sill fan, such as Figures 1 to 7 As shown, it includes a housing 1, a fan system 2, a spray system 3, and an electrical component 4, wherein:
[0030] An air duct formed by an air inlet 11 and an air outlet 12 is provided in the upper middle part of the housing 1; a motor mounting base 13 is provided in the air duct; and disassembly plates 14 for easy water addition, replacement and maintenance are provided on both sides of the housing 1.
[0031] The fan system 2 includes a front grille anti-detachment component 21, a front grille 22, a front grille mounting component 23, fan blades 24, a motor 25, and a rear grille 26. The motor 25 is located in the motor mounting base 13, and its motor shaft is connected to the fan blades 24. The front grille 22 is rotatably fitted over the rotating sleeve 231 of the front grille mounting component 23 and positioned by the front grille anti-detachment component 21. The front grille mounting component 23 is installed on the motor mounting base 13 of the housing 1. The rear grille 26 is located in the air inlet 11 and does not protrude from the rear wall of the housing 1 from the side. In this way, when the air inlet 11 faces the outside of the window, it helps to draw outdoor air (because there is no side air intake) into the room, accelerating the exchange and flow of indoor and outdoor air and cooling.
[0032] The spray system 3 includes a water tank 31, an atomizing chamber 32, an atomizing module 33, a mist flow pipe 34, a fan 35, a mist guide box 36, a connecting pipe 37, and a water pump 38. The water tank 31 and the atomizing chamber 32 are located inside the bottom of the housing 1 and are detachably connected by the water pump 38 and the connecting pipe 37 with a shut-off valve 371. The atomizing module 33 is located in the atomizing chamber 32. The mist atomized by the atomizing module 33 enters the mist flow pipe 34 and is then blown by the fan 35. 5. The mist is pushed into the mist guide box 36; the mist guide box 36 is connected to the mounting part 23, and the guide box is provided with multiple mist nozzles 361; there is a water receiving box 362 below the mist guide box 36, which is connected to the mist guide box; there is an exhaust valve 321 on the top of the atomizing chamber 32; the water storage tank 31 and the side wall of the atomizing chamber 32 are respectively provided with a vacuum breaking valve 313 and a vacuum breaking valve 322; the mist flow pipe 34 is provided with a shut-off valve 341 at the end near the fan 35.
[0033] The electrical component 4 is connected to the fan system 2 and the spray system 3, and is also connected to the function operation key group 5 located on the housing 1. The function operation key group 5 includes a fan mode operation key group 51 and a misting mode operation key group 52. The electrical component 4 includes an anti-tipping switch protection system, an intelligent temperature control protection system for the misting chamber, a water tank capacitor level system, a misting chamber capacitor level system, and an air humidity detection and control system. For safety, the electrical component 4 is usually housed in a box that is waterproof and allows for heat dissipation.
[0034] This utility model is usually hung and fixed on a window or stood upright on a windowsill, with its air inlet facing outwards from the windowsill; of course, it can also be placed in windows or vents that separate the indoor and outdoor spaces. There are two functional modes during use: one is to activate only the fan mode: operate the fan mode operation key group 51 of the function operation key group 5 to make the fan system 2 work, which will draw outdoor air into the room; the other is to activate both the fan mode and the atomization mode simultaneously: operate the fan mode operation key group 51 and the atomization mode operation key group 52 of the function operation key group 5 to make the fan system 2 and the atomization system 3 work simultaneously. In this case: on the one hand, the motor 25 drives the fan blades 24 to rotate and draw outdoor air into the room; on the other hand, the atomization module 33 works, atomizing the water in the atomization chamber 32 into water mist, which is then drawn by the fan 35 through the mist flow pipe 34 to the mist guide box 36, and then sprayed out by multiple mist nozzles 361 of the mist guide box 36. At this time, the wind generated by the working fan blades 24 promotes the rapid and even diffusion of the sprayed mist in the room, thereby simultaneously realizing spray humidification and rapid exchange of indoor and outdoor air, and thus quickly cooling the room.
[0035] As can be seen from the above, because the shell 1 is designed in a shape similar to a lucky fan, it occupies little space and can be carried and placed by one person on a windowsill or vent where there is a separation between the indoor and outdoor areas, blowing air in a directional direction to the indoors, promoting the flow of outdoor air into the room and accelerating the convection and exchange of indoor and outdoor air; in addition, since the fan system 2 and the spray system 3 can work together, the wind generated by the fan blades 24 can make the mist sprayed by the mist nozzle 361 spread more quickly and evenly in the room, thereby simultaneously achieving mist humidification and rapid exchange of indoor and outdoor air; when it is necessary to add water to the water tank 31 or change the water, it can be done by opening the disassembly plate 14 on one side of the water tank 31 and unscrewing the water tank cap 312; therefore, the indoor and outdoor air exchange and indoor cooling effect of this utility model are better.
[0036] In this embodiment, the housing 1 includes a main housing 17 and a rear cover 18. For example... Figure 1 , 5 As shown in Figure 6, since the housing 1 is provided with disassembly plates 14 on both sides for easy water addition and maintenance, when it is necessary to add or change water or maintain the fan system 2, spray system 3 or electrical components 4 inside the housing, the disassembly plates 14 can be opened or removed first. The housing 1 is provided with multiple hanging holes 15, which, combined with commonly available universal metal cable ties and adjustable window frame clamps or telescopic rods, allow the window sash to be suspended and fixed at the ventilation opening of the window or wall, thus broadening the applicability of the window sash.
[0037] In this embodiment, as Figure 1 , 2As shown, a plurality of support feet 16 are provided at the bottom of the housing 1; ventilation holes are provided on the bottom plate of the housing 1, which can form a passage with the holes of the side disassembly plates 14, which facilitates heat dissipation, ventilation and drying of the space where the water tank 31, atomizing chamber 32 and electrical parts are located, and prevents water accumulation.
[0038] Preferably, such as Figure 3 , Figures 5 to 7 As shown, the wall of the air inlet 11 is a flared slope, and its widest diameter is 20% to 50% larger than that of the air outlet 12, in order to facilitate the intake of air and the rapid flow of air, thereby further promoting ventilation, cooling and uniform humidification in the room.
[0039] Preferably, the housing 1 is provided with an external air humidity detector 6 at its air inlet 11, which is connected to the air humidity detection and control system of the electrical part 4; when it detects that the outdoor air humidity is greater than the set value, it can control the spray system 3 through the electrical part 4 to make it automatically stop working.
[0040] In this embodiment, as Figure 5 , 6 As shown, the water storage tank 31 includes a tank body 311 and a tank cover 312 with a sealing ring, which is screwed onto the opening of the tank body 311. A vacuum breaker valve 313 is installed on the side wall of the tank body 311 at a position 2cm above the highest water level line. It can quickly and effectively replenish air and prevent leakage. When the water storage tank 31 supplies water to the atomizing chamber 32, air is introduced into the water tank through the vacuum breaker valve 313 to maintain the air pressure balance inside and outside the water tank. At the same time, even if the window sash is tilted, the water in the tank will not flow out.
[0041] Preferably, the top of the atomizing chamber 32 is provided with an exhaust valve 321; when the atomizing chamber 32 is replenished with water, the exhaust valve 321 can quickly exhaust the water; the side wall of the atomizing chamber 32 is provided with a vacuum breaker valve 322, which can quickly and effectively replenish air when the fan 35 is running.
[0042] In this embodiment, the electrical component 4 includes an anti-tipping switch protection device. When the window sash tipps over, the power can be cut off immediately, causing the fan system and the atomizing system to stop working simultaneously. At the same time, the shut-off valve 341 closes immediately, so that there is no risk of water or mist leakage in the atomizing chamber 32.
[0043] Preferably, the electrical component 4 includes an intelligent temperature control protection device for the atomizing chamber. When the water temperature in the atomizing chamber is detected to exceed a threshold, the power supply to the atomizing module 33 is immediately cut off, the atomizing operation is stopped, and an LED light (not shown in the figure) is used to indicate that the water temperature is too high. Only when the water temperature drops below a certain threshold range (e.g., 45°C) will the atomizing module 33 automatically restart. The electrical component 4 also includes a capacitor leveling device for the water storage tank. When the water level in the storage tank is detected to be below a set threshold, the power supply to the water pump 38 is immediately cut off. The LED indicator (not shown in the figure) reminds users to add water. The electrical part 4 includes a capacitor level device for the atomizing chamber. When the atomizing chamber 32 is detected to have reached the low water level threshold and the water level in the water tank 31 is higher than the set low water level threshold, the water pump 38 is turned on (the water pump 38 is controlled by the water tank capacitor level system, which has a higher priority than the atomizing chamber capacitor level system) and the second shut-off valve 371 to add water. When the water level in the atomizing chamber 32 reaches the highest water level threshold, the water pump 38 and the second shut-off valve 371 are turned off to stop adding water.
[0044] Anti-tipping switch protection devices, intelligent temperature control protection devices for atomizing chambers, capacitor level devices for water storage tanks and capacitor level devices for atomizing chambers are commonly used in current floor-standing water fans, and will not be described in detail here.
[0045] Preferably, the mist guide box 36 is semi-circular and has multiple upward-sloping mist nozzles 361 distributed thereon; a water receiving box 362 is located below the guide box 36 to collect water droplets falling from the mist nozzles 361.
[0046] In this embodiment, the fan mode operation key group 51 includes a fan speed key and a fan timer key, and the atomization mode operation key group 52 includes an atomization speed key and an atomization timer key, to meet the usage needs of different periods and occasions.
[0047] The electrical components of the spray system 3 (including water pump, atomizing module, fan, shut-off valve, level switch, relay, etc.) are all powered by low-voltage DC power (usually 24V DC or below). The electrical part 4 converts 220V AC to 24V DC through a switching power supply, and then provides the corresponding voltage after voltage conversion between low-voltage circuits.
[0048] In the description of this utility model, it should be understood that terms such as "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" 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 utility model 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 utility model.
[0049] Although the present invention has been described in detail with reference to the above embodiments, it will be apparent to those skilled in the art that various changes or modifications can be made to the present invention without departing from the principles and spirit of the present invention as defined by the claims. Therefore, the detailed description of the embodiments in this disclosure is for explanation only and not for limiting the present invention, but rather the scope of protection is defined by the content of the claims.
Claims
1. A window sash, characterized by, Includes housing, fan system, spray system and electrical components, among which: An air duct formed by a communicating air inlet and air outlet is provided in the upper middle part of the housing; a motor mounting base is provided in the air duct; and disassembly plates for easy water addition, replacement and maintenance are provided on both sides of the housing. The fan system includes a front grille anti-detachment component, a front grille, a front grille mounting component, fan blades, a motor, and a rear grille. The motor is housed in the motor mounting base, and its motor shaft is connected to the fan blades. The front grille is rotatably fitted over the rotating sleeve of the front grille mounting component and positioned by the front grille anti-detachment component. The front grille mounting component is mounted on the motor mounting base of the housing. The rear grille is located in the air inlet and does not protrude laterally from the rear wall of the housing. The spray system includes a water tank, an atomizing chamber, an atomizing module, a mist flow pipe, a fan, a mist guide box, a connecting pipe, and a water pump. The water tank and the atomizing chamber are located inside the bottom of the housing and are detachably connected via a connecting pipe equipped with a water pump and a shut-off valve. The atomizing module is located in the atomizing chamber. The mist atomized by the atomizing module enters the mist flow pipe and is then pushed by the fan to the mist guide box. The mist guide box is connected to the front mesh cover mounting component. Multiple mist nozzles are provided on the mist guide box. The electrical components are connected to the fan system and the spray system, and are also connected to the function operation key group located on the housing; the function operation key group includes a fan mode operation key group and a misting mode operation key group.
2. The window sash of claim 1, wherein, The housing has multiple hanging holes.
3. The sash of claim 1, wherein, The wall of the air inlet is a flared, beveled surface, and the diameter at its widest point is 20% to 50% larger than that of the air outlet.
4. The window sash according to claim 1, characterized in that, The electrical component includes an anti-tipping switch device.
5. The window sash according to claim 1, characterized in that, The electrical components include an intelligent temperature control protection device for the atomization chamber.
6. The window sash according to claim 1, characterized in that, The electrical components include a water tank capacitor level device; a vacuum breaker valve is installed on the side wall of the main body of the water tank.
7. The window sash according to claim 1, characterized in that, The electrical components include atomizing chamber capacitor level device.
8. The window sash according to claim 1, characterized in that, The electrical components include an air humidity detection and control system; the housing has an air humidity detector connected to the air humidity detection and control system at its air inlet.
9. The window sash according to claim 1, characterized in that, The fan mode operation key group includes a fan speed key and a fan timer key, and the atomization mode operation key group includes an atomization speed key and an atomization timer key.
10. The window sash according to claim 1, characterized in that, A water collection box is provided below the mist guide box and connected to the mist guide box; a vacuum breaking valve is provided on the side wall of the atomization chamber, and an exhaust valve is provided on the top of the atomization chamber; a shut-off valve is provided near the fan end of the mist flow pipe; and a vacuum breaking valve is installed on the side wall of the atomization chamber.