Upward blowing type warm air drying device

By embedding a blower-type warm air drying device inside the window opening, and combining the heating equipment with the fan and curtains to form a closed drying space, the problems of bathroom heaters taking up space and being unsightly are solved, and efficient use of heat energy and rapid drying are achieved.

CN224201762UActive Publication Date: 2026-05-05SHENZHEN ZIZHOU SMART HOME CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHENZHEN ZIZHOU SMART HOME CO LTD
Filing Date
2025-05-16
Publication Date
2026-05-05

AI Technical Summary

Technical Problem

The existing low-mounted installation of bathroom heaters takes up space and is unsightly, resulting in insufficient heat utilization and affecting comfort.

Method used

Design an upward-blowing warm air drying device that utilizes window openings and window frames for embedded installation. Combine heating equipment with a fan, curtains, and window openings to form a towel rack and drying box, achieving uniform supply of hot air from a low position, and forming a closed drying space through inner and outer curtains.

Benefits of technology

By making full use of the space within the window frame, heat energy utilization is improved, materials and costs are saved, and comfortable warm air and rapid drying effects are provided, while not taking up extra space and improving aesthetics.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224201762U_ABST
    Figure CN224201762U_ABST
Patent Text Reader

Abstract

The utility model discloses an upward blowing type warm air drying device which comprises a window frame and glass, the window frame comprises a window frame lower body, a lower air inlet is formed in the outer side of the window frame lower body, a heating element and a warm air fan are arranged in the window frame lower body, an upward blowing air supply outlet communicated with the warm air fan is formed in the inner side of the window frame lower body, and a rolled inner side blind is arranged on the inner side of the window frame. And the inner side blind is close to the inner side relative to the upper blowing air outlet. The window has the beneficial effects that the blind on the inner side of the window opening and the glass on the outer side of the window opening form a closed space, the drying chamber is formed in the window opening, stable heat energy and blowing of the draught fan can be obtained more easily in the drying chamber, warm air is provided for the interior of the room, drying can be achieved at the same time, a half of a heating main machine is saved, supporting facilities are also obviously saved, and the cost is reduced. Materials are saved, and cost is reduced by about half.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This application belongs to the field of household appliance technology, specifically relating to an upward-blowing type warm air drying device. Background Technology

[0002] Currently, most bathroom heaters on the market use either radiant or forced-air heating, but they all share the common feature of being ceiling-mounted, providing heat from top to bottom. This top-down heating method goes against the natural upward movement of hot air. This results in a warmer upper area and a colder lower area in the bathroom, preventing the effective utilization of a large amount of heat energy. As a result, taller people feel that their heads are too hot, their bodies are too cold, and their lower bodies are cold. It is even more difficult for shorter people and children to keep warm, and they may even catch a cold from the cold, making it very inconvenient to use.

[0003] Therefore, more and more bathroom heaters are adopting a low-mounted installation structure to optimize the flow path of hot air and ensure a more even indoor air temperature. However, low-mounted bathroom heaters occupy wall and corner space, reducing the space available for people to move around and use, and do not provide a comfortable experience. Moreover, bathroom heaters that protrude from the wall or corner are not aesthetically pleasing. Utility Model Content

[0004] The purpose of this application is to provide an upward-blowing warm air drying device, which solves the problems of existing low-position bathroom heaters occupying space and being unsightly. At the same time, by utilizing the heating element and fan of the heating equipment in conjunction with windows, curtains, and window openings, a towel drying rack and drying box can be formed according to local conditions, with almost no additional components, to achieve the function of drying towels and clothes.

[0005] The objective of this application is achieved through the following technical solution:

[0006] An upward-blowing warm air drying device includes a window frame and glass. The window frame includes a lower part of the window frame, with a lower air inlet on the outer side of the lower part of the window frame. A heating element and a warm air fan are provided inside the lower part of the window frame. An upward-blowing air outlet connected to the warm air fan is provided on the inner side of the lower part of the window frame. A retractable inner curtain is provided on the inner side of the window frame, with the inner curtain closer to the inner side relative to the upward-blowing air outlet.

[0007] Furthermore, the window frame also includes an upper window frame body, with an upper air vent in the middle of the upper window frame body, an exhaust fan inside the upper window frame body, and an upper air outlet on the outer side of the upper window frame body.

[0008] Furthermore, the lower air inlet is equipped with louvers, and the upper air outlet is also equipped with louvers.

[0009] Furthermore, the heating element is a thermostatic ceramic.

[0010] Furthermore, the upper air vent is equipped with louvers, and the upper air outlet is equipped with louvers.

[0011] Furthermore, the inner side of the window frame glass is provided with a retractable outer curtain.

[0012] Furthermore, a drying rod is provided in the middle of the window frame.

[0013] Furthermore, the aforementioned drying racks are arranged in a stepped manner.

[0014] Furthermore, one end of the drying rod is hinged to the window frame along the vertical axis, and the other end of the drying rod is hung on the window frame.

[0015] Furthermore, both ends of the drying rod are hung on the window frame.

[0016] Furthermore, the window frame also includes a window frame side body, a window frame top body, and an extended cover plate forming an inverted U-shaped structure on the window frame side body.

[0017] Furthermore, the extended cover is removably mounted on the upper body and side body of the window frame.

[0018] The beneficial effects of this application are:

[0019] (1) The device is embedded in the window opening and window frame to achieve hot air supply at a low position, making full use of the internal space of the window frame without occupying other space, ensuring the space utilization rate of the room, ensuring the comfort of the device, and also significantly reducing the wind noise caused by the high-power fan based on the window opening.

[0020] (2) The inner curtain of the window opening and the glass on the outside of the window opening form a closed space, forming a drying room inside the window opening. The drying room is more likely to obtain stable heat energy and blow air from the fan, providing warm air to the room while achieving drying. This saves half of the heating unit, and the supporting facilities are also significantly reduced, saving materials and reducing costs by about half.

[0021] (3) The relatively enclosed drying space avoids the problem of excessive heat loss in open towel racks, making overall drying more energy-efficient and allowing towels and clothes to dry faster. The additional extension cover expands the internal space, creating a larger drying volume.

[0022] The aforementioned main solution and its various further alternatives can be freely combined to form multiple solutions, all of which are solutions that can be adopted and are claimed in this application; furthermore, the (non-conflicting alternatives) can also be freely combined with each other and with other alternatives. Those skilled in the art, after understanding this solution, will realize from the prior art and common general knowledge that there are many combinations, all of which are technical solutions to be protected in this application, and will not be exhaustively listed here. Attached Figure Description

[0023] Figure 1 This is the main view of the structure of this application.

[0024] Figure 2 This is a side view of the structure of this application.

[0025] In the diagram: 1-Window opening, 2-Window frame, 3-Glass, 4-Upper part of window frame, 5-Lower part of window frame, 6-Lower air inlet, 7-Heating element, 8-Warm air fan, 13-Upper air outlet, 14-Upper exhaust outlet, 15-Exhaust fan, 16-Upper air outlet, 17-Inner curtain, 18-Outer curtain, 19-Drying rod. Detailed Implementation

[0026] The present application will be further described below with reference to specific embodiments and accompanying drawings.

[0027] Example

[0028] refer to Figure 1 and Figure 2 As shown, an upward-blowing warm air drying device includes a window frame 2, glass 3, upper window frame 4, lower window frame 5, lower air inlet 6, heating element 7, warm air fan 8, upward air outlet 13, upper air outlet 14, exhaust fan 15, upper air outlet 16, inner curtain 17, outer curtain 18, and drying rod 19.

[0029] Window opening 1 is a pre-reserved opening in the wall for installing a window. The warm air drying device is installed in the window opening. This achieves two goals: first, it enables the low-level installation of the warm air drying device, which is conducive to the low-level supply of warm air; second, it avoids the problem of the warm air drying device occupying indoor space when installed on the wall, and avoids the additional introduction of the warm air drying device affecting comfort.

[0030] Window opening 1 contains a window frame 2 and glass 3. The window frame 2 is made of aluminum alloy and is glued and fixed inside the window opening, providing a base for the glass 3 and the warm air drying device. The glass 3 is installed on the window frame 2 and serves as a transparent partition, allowing light to pass through and providing a sense of separation. The glass 3 can be fixed to the window frame 2 and cannot be opened or closed (only for light transmission and partitioning), or it can be made to open and close freely using a hinge structure (also for ventilation).

[0031] The window frame 2 includes an upper part 4 and a lower part 5. The upper part 4 is the horizontal upper section of the window frame 2, which houses the ventilation device. The lower part 5 is the horizontal lower section of the window frame 2, which houses the heating and drying device. The window frame 2 also includes side sections, which are the vertical sections on both sides of the window frame 2.

[0032] Since the warm air drying device is based on the lower part 5 of the window frame 2, and the exhaust device is based on the upper part 4 of the window frame 2, and the window frame 2 is based on the window opening in the wall, the fan installation is relatively more stable, which can reduce the vibration and noise generated by the fan operation.

[0033] A lower air inlet 6 is provided on the outer side of the lower part 5 of the window frame. The lower air inlet 6 can be located indoors for internal circulation, or it can be located outdoors to supply outdoor air into the lower part 5 of the window frame. A heating element 7 and a warm air fan 8 are installed inside the lower part 5 of the window frame. The heating element 7 heats the air, and the warm air fan 8 provides air pressure to force outdoor or indoor air into the room, thus supplying fresh air and warm air. Without turning on the heat source, turning on the fan provides a cooling effect.

[0034] The inner side of the lower part 5 of the window frame is provided with an upward air supply vent 13 that is connected to the heater fan 8. The upward air supply vent 13 is located indoors, that is, air is supplied to the room through the upward air supply vent 13. The upward air supply vent 13 is a duct structure that blows air obliquely upward or vertically downward, so as to realize the hot air is delivered from a low position and optimize the uniformity of heating.

[0035] The inner side of the window frame 2 is equipped with a retractable inner curtain 17. Specifically, the inner curtain 17 is located on the upper part of the inner side of the window frame. The retractable inner curtain 17 can be lowered to block the view, or rolled up to allow light and ventilation. The inner curtain 17 is close to the inner side of the upward air outlet 13, so that when the inner curtain 17 is lowered, it can seal the window opening, forming a closed drying chamber with the outer glass. The upward air outlet 13 sends hot air into the drying chamber to dry the items inside, thus achieving multiple uses in one machine and saving costs.

[0036] An upper air vent 14 is located in the middle of the upper part of the window frame 4, inside the room, and supplies air from the room or the drying room into the upper part of the window frame 4. An upper air outlet 16 is located on the outside of the upper part of the window frame 4, outside the room, and supplies air from inside the upper part of the window frame 4 to the outside. An exhaust fan 15 is installed inside the upper part of the window frame 4. The exhaust fan 15 provides air pressure to force air from the room or the drying room to the outside for dehumidification and odor removal. During drying, the exhaust fan can be turned on simultaneously to expel humid air.

[0037] Water splashing onto window frame surfaces is a common occurrence. Therefore, the heating element, fan, and power cord are installed away from the bottom plate of the window frame, instead using inverted or inner-side mounting methods. The components are designed with water shields above them, and if water gets into the window frame, it will flow out through the lower exhaust vent. A cross-flow fan is typically used, with a long, rectangular shape that matches the window frame. The heating element is preferably a PTC thermostatic ceramic heating element, also preferably with a long, rectangular shape that matches the frame. A safe DC voltage is preferred to power the fan and PTC thermostatic ceramic heating element for enhanced safety. The transformer assembly is preferably placed inside the ceiling, with the safety power cord routed through the frame.

[0038] Louvers are installed at the lower air inlets (6) and the upper air outlets (13) to ensure even airflow and to shield the interior of the lower window frame (5) from external objects that could damage the equipment. The heating element (7) is a thermostatic ceramic element used to provide the heat source. In addition to the lower air inlets located on the outside of the lower window frame, indoor air inlets can also be installed on the side of the window frame. These inlets at different locations can be controlled by switches to achieve optimal performance.

[0039] Louvers are installed at the upper exhaust vent 14 and the upper air outlet 16 to achieve uniform airflow and to block the interior of the upper part of the window frame 4, preventing other objects from entering and causing damage to the equipment.

[0040] The window frame 2 has a retractable outer curtain 18 on the inside of the glass. Specifically, the outer curtain 18 is placed on the upper part of the inside of the glass of the window frame side body. The retractable outer curtain 18 can be lowered to block the view, or it can be rolled up to allow light and ventilation.

[0041] A drying rod 19 is provided in the middle of the window frame 2. The drying rod 19 facilitates the hanging of towels and clothes, promoting drying and airing. Preferably, the drying rod 19 is movable or detachable from the window frame 2, allowing it to be installed in place when in use and moved away when not in use to avoid obstructing lighting or ventilation. Several drying rods 19 are arranged in a stepped pattern, allowing for the arrangement of multiple items in a tiered manner, which is conducive to the full blowing of hot air and ensures thorough drying. Because the drying rods 19 are movable or detachable, their positions can be flexibly changed.

[0042] One end of the drying rod 19 is hinged to the window frame 2 along the vertical axis, and the other end of the drying rod 19 is hung on the window frame 2, thus realizing the movable hinge of the drying rod 19 to the window frame 2 and enabling the horizontal flipping movement of the drying rod 19. When in use, the drying rod 19 is flipped so that it lies horizontally inside the window frame 2, with the end supported by the hanging bracket for hanging clothes. When not in use, the drying rod 19 is flipped so that it returns to the interior, without affecting lighting and ventilation.

[0043] Both ends of the drying rod 19 are hung on the window frame 2, meaning both ends of the drying rod 19 are attached to the hanging brackets on the window frame 2, allowing for detachable installation. When in use, the drying rod 19 is hung in place, and then clothes are hung. It can be removed when not in use.

[0044] The upper part 4 and the side part of the window frame are provided with an extended cover plate 20 forming an inverted U-shape. The extended cover plate 20 is used to expand the drying space and can form a larger drying volume. In addition, the inverted U-shape forms a downward heating air supply form, which is conducive to the low-level supply of hot air.

[0045] The extension cover 20 is retractably mounted on the upper body 4 and the side body of the window frame. Preferably, the extension cover 20 consists of two side panels corresponding to the side body of the window frame and a top panel corresponding to the upper body 4 of the window frame. It is installed on the corresponding window frame using a pull-out sliding structure. When extension is needed, the panel is pulled out to form an inverted U-shape. When not in use, the panel is pushed back. Preferably, the inner curtain 17 is arranged on the top panel of the extension cover 20, so that the inner curtain 17 can provide limited closure synchronously with the extension.

[0046] The foregoing basic examples and their further alternative examples can be freely combined to form multiple embodiments, all of which are embodiments that can be adopted and claimed in this application. In the scheme of this application, each alternative example can be arbitrarily combined with any other basic example and alternative example.

[0047] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A top-blowing type warm air drying device, comprising a window frame (2) and glass (3), characterized in that: The window frame (2) includes a lower window frame body (5), with a lower air inlet (6) on the outside of the lower window frame body (5), a heating element (7) and a warm air fan (8) inside the lower window frame body (5), an upper air outlet (13) connected to the warm air fan (8) on the inside of the lower window frame body (5), and a retractable inner curtain (17) on the inside of the window frame (2), with the inner curtain (17) being closer to the inside than the upper air outlet (13).

2. The top-blowing warm air drying device according to claim 1, characterized in that: The window frame (2) also includes a window frame upper body (4), with an upper air vent (14) in the middle of the window of the window frame upper body (4), an exhaust fan (15) inside the window frame upper body (4), and an upper air outlet (16) on the outside of the window frame upper body (4).

3. The top-blowing type warm air drying device according to claim 1, characterized in that: The lower air inlet (6) is provided with a louvered plate, and the upper air outlet (13) is provided with a louvered plate; the heating element (7) is a constant temperature ceramic.

4. The top-blowing type warm air drying device according to claim 2, characterized in that: The upper air vent (14) is provided with a louvered plate, and the upper air outlet (16) is provided with a louvered plate.

5. The top-blowing type warm air drying device according to claim 1 or 2, characterized in that: The window frame (2) is provided with a retractable outer curtain (18) on the inner side of the glass.

6. The top-blowing type warm air drying device according to claim 1, characterized in that: The window frame (2) is provided with a drying rod (19) in the middle.

7. The top-blowing type warm air drying device according to claim 6, characterized in that: The aforementioned drying rods (19) are arranged in a stepped manner.

8. The top-blowing type warm air drying device according to claim 6 or 7, characterized in that: One end of the drying rod (19) is hinged to the window frame (2) along the vertical axis, and the other end of the drying rod (19) is hung on the window frame (2); both ends of the drying rod (19) are hung on the window frame (2).

9. The top-blowing warm air drying device according to claim 1 or 3, characterized in that: The window frame (2) also includes a window frame side body, a window frame top body (4), and an extension cover plate (20) forming an inverted U-shaped structure on the window frame side body.

10. The top-blowing type warm air drying device according to claim 9, characterized in that: The extended cover (20) is removably mounted on the upper body (4) of the window frame and the side body of the window frame.