A fresh air system for doors and windows

By designing fresh air system modules in the doors and windows of the fresh air system to face directly into the room and eliminating the need for cover plates, combined with a detachable structure and insulation layer, the problem of low ventilation efficiency in existing fresh air systems is solved, achieving higher airflow intensity and overall performance improvement.

CN224432392UActive Publication Date: 2026-06-30XIAOXUAN TECHNOLOGY (GUANGDONG) CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
XIAOXUAN TECHNOLOGY (GUANGDONG) CO LTD
Filing Date
2025-06-17
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

Existing fresh air system designs result in low air blowing intensity and efficiency, and the presence of covers that affect ventilation performance.

Method used

Design a fresh air system door and window where the air outlet of the fresh air system module faces directly into the room, eliminating the need for a separate cover plate. It is connected to the frame through a detachable structure and combines heat insulation and barrier layers to improve ventilation efficiency and sealing.

Benefits of technology

It improves the strength and efficiency of air blowing, reduces manufacturing costs, enhances assembly efficiency and overall durability, and has good sound and heat insulation properties.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a fresh air system door and window, including a frame and a fresh air system module. The frame has an internal cavity with at least one air inlet on one side and an opening on the other side. The fresh air system module is installed into the cavity through the opening. The fresh air system module has an air inlet end and an air outlet end. The air inlet end communicates with the air inlet, and the air outlet end faces inwards. Outdoor air enters the room after passing through the air inlet, air inlet end, and air outlet end in sequence. When viewed from inside the room, at least a portion of the fresh air system module is exposed. This design eliminates the need for a separate cover plate, allowing the air outlet end of the fresh air system module to blow air directly into the room, improving the intensity and efficiency of the airflow. Furthermore, this structure offers higher integration, improving assembly efficiency and reducing overall manufacturing costs.
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Description

Technical Field

[0001] This utility model relates to the field of door and window technology, and in particular to a fresh air system door and window. Background Technology

[0002] As people's demands for the quality of their living environment increase, indoor air quality has become a growing concern. While traditional window ventilation can introduce fresh air, it faces numerous challenges in certain situations, such as noise pollution, cold winters, hot summers, dust intrusion, and safety hazards (such as the risks associated with opening windows in high-rise residential buildings). To address these challenges, fresh air systems have emerged and become an indispensable ventilation device in modern buildings.

[0003] However, current fresh air products on the market still have some design shortcomings. For example, in some designs, the fresh air system module is hidden inside the frame and sealed by a cover. This design forces the air blown out by the fresh air system to enter the room through the exhaust vents on the cover or frame, thus affecting the strength and efficiency of the airflow. Utility Model Content

[0004] In order to overcome the shortcomings of the existing technology, this utility model provides a fresh air system door and window with simple structure and strong wind power.

[0005] The technical solution adopted by this utility model to solve its technical problem is:

[0006] A fresh air system door and window includes a frame and a fresh air system module. The frame has an internal cavity, one side of which has at least one air inlet, and the other side of which has an opening. The fresh air system module is installed into the cavity through the opening. The fresh air system module has an air inlet end and an air outlet end. The air inlet end is connected to the air inlet, and the air outlet end faces the interior. Outdoor air enters the interior after passing through the air inlet, the air inlet end, and the air outlet end in sequence. When viewed from the interior to the exterior, at least a portion of the fresh air system module is exposed.

[0007] In some embodiments, the fresh air system module has a panel on the side facing the room. The panel is integrally formed with the fresh air system module, and the area of ​​the panel is larger than the area of ​​the opening when viewed from the room to the outside.

[0008] In some embodiments, the fresh air system module is connected to the frame via a detachable structure.

[0009] In some embodiments, the detachable structure includes a locking portion and a locked portion that mates with the locking portion. The locking portion is disposed on the fresh air system module, and the locked portion is disposed on the frame. The fresh air system module is locked and connected to the frame.

[0010] In some embodiments, the edge of the opening is provided with an outwardly extending flange, and the panel abuts against the flange.

[0011] In some embodiments, a seal is provided between the flange and the panel.

[0012] In some embodiments, the receiving cavity is provided with at least an air inlet layer and a partition layer, the partition layer is disposed between the opening and the air inlet layer, the partition layer is provided with a through channel, and the fresh air system module is disposed in the channel.

[0013] In some embodiments, the air intake layer has an open end facing the outside, and the open end is detachably connected to a rear cover via a snap-fit ​​structure, the rear cover having the air intake port.

[0014] In some embodiments, the rear cover has an inner locking arm and an outer locking arm extending toward the air intake layer on at least one side, a waterproof space is provided between the inner locking arm and the outer locking arm, and both the inner locking arm and the outer locking arm are provided with through air intakes.

[0015] In some embodiments, the separating layer includes a heat insulation layer and a barrier layer, the heat insulation layer being made of heat insulation material, the barrier layer being disposed adjacent to the heat insulation layer, and the number of the barrier layers being at least one.

[0016] The beneficial effects of this invention are: this design eliminates the need for a separate cover plate, allowing the air outlet of the fresh air system module to blow air directly into the room, thus improving the intensity and efficiency of the airflow. Furthermore, this structure offers higher integration, improving assembly efficiency and reducing overall manufacturing costs. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0018] Figure 1 This is a structural schematic diagram of a portion of the window frame according to Embodiment 1 of this utility model;

[0019] Figure 2 This is an exploded structural diagram of a portion of the window frame according to Embodiment 1 of this utility model;

[0020] Figure 3 This is a schematic diagram of a portion of the window frame of Embodiment 1 of this utility model, with the cover plate removed.

[0021] Figure 4 This is a schematic diagram of the structure of the back cover of Embodiment 1 of this utility model;

[0022] Figure 5This is a cross-sectional view of a portion of the window frame according to Embodiment 1 of this utility model;

[0023] Figure 6 This is an exploded structural diagram of a portion of the window frame according to Embodiment 2 of this utility model;

[0024] Figure 7 This is a cross-sectional view of a portion of the window frame according to Embodiment 2 of this utility model. Detailed Implementation

[0025] In the description of this utility model, 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., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0026] Example 1

[0027] Reference Figures 1 to 5 A window frame with a cover plate 7 includes a frame body 1, which is a single-frame, double-frame, or multi-frame shape. The frame body 1 can be integrally formed or spliced ​​together. The frame body 1 has a receiving cavity 2 inside, which can be one or more. The receiving cavity 2 can be located on the frame edge and / or the inner edge of the frame body 1. Preferably, the receiving cavity 2 is located on the inner edge of the frame body 1.

[0028] The fresh air system module 3 is installed within the receiving cavity 2. Preferably, the fresh air system module 3 is detachably installed within the receiving cavity 2, and can be installed by means of snap-fit, fitting, or screws. The fresh air system module 3 can also be considered an air purifier, used to purify outdoor air before releasing it into the room. Preferably, the fresh air system module 3 has a negative ion purification function.

[0029] At least one air inlet 4 is provided on one side of the receiving cavity 2, allowing air to enter the receiving cavity 2 through the air inlet 4. An opening 5 is provided on the other side of the receiving cavity 2, facing away from the air inlet 4, or in other words, facing towards the interior. At least one slot 6 is provided along the edge of the opening 5, extending from the interior of the receiving cavity 2 to the exterior of the frame 1. A cover plate 7 is detachably attached to the opening 5, and the slot 6 and the cover plate 7 together form an exhaust vent. The cover plate 7 is detachably connected to the frame 1 by means of snap-fit, screw locking, magnetic attraction, etc. This detachable connection of the cover plate 7 facilitates the installation and routine maintenance of the fresh air system module 3.

[0030] After the cover plate 7 is removed from the frame 1, the slot 6 is exposed when viewed from the inside to the outside. With this design, if it is necessary to clean the vent, simply remove the cover plate 7, and the slot 6 will be exposed. The user can directly use a cloth or brush to clean the slot 6, which not only makes cleaning more thorough but also improves cleaning efficiency and greatly reduces the difficulty of cleaning.

[0031] In some embodiments, the cover plate 7 and the frame 1 are connected by a snap-fit ​​structure. Specifically, the cover plate 7 is provided with a snap-fit ​​part 8, and the frame 1 is provided with a snap-fit ​​part 9 that mates with the snap-fit ​​part 8. The cover plate 7 and the frame 1 are snap-fitted together. At least one of the snap-fit ​​part 8 and the snap-fit ​​part 9 is elastically deformable. The cover plate 7 may also have a snap-fit ​​part 8 on only one side, with the other side connected by a limiting structure. The snap-fit ​​structure facilitates the assembly and disassembly of the cover plate 7 and eliminates the need for fasteners, reducing the number of parts.

[0032] In some embodiments, the edge of the opening 5 is provided with an outwardly extending flange 10, and the slot 6 is provided on the side of the flange 10 that contacts the cover plate 7. The outwardly extending flange 10 increases the structural strength around the opening 5, making it more resistant to external pressure or impact, avoiding damage caused by accidental collisions, and improving overall durability and reliability. Moreover, the design of the flange 10 can increase the contact area between the edge of the opening 5 and the cover plate 7, thereby improving the sealing performance.

[0033] In some embodiments, an exhaust port 11 is provided within the slot 6, intersecting the extending direction of the slot 6 and penetrating the flange 10. Preferably, the penetrating direction of the exhaust port 11 is perpendicular to the extending direction of the slot 6. This design increases the air exhaust path and improves ventilation efficiency.

[0034] In some embodiments, the receiving cavity 2 is provided with at least a separated air inlet layer 12 and an air outlet layer 13, and a partition layer disposed between the air inlet layer 12 and the air outlet layer 13. The partition layer is provided with a through channel 14, the air inlet layer 12 is provided with an air inlet 4 communicating with the outside, and the opening 5 is disposed in the air outlet layer 13. The fresh air system module 3 is installed in the channel 14 of the partition layer. It is understood that the fresh air system module 3 and the partition layer separate the air inlet layer 12 and the air outlet layer 13, and the air in the air inlet layer 12 needs to be purified by the fresh air system module 3 before entering the air outlet layer 13.

[0035] In some embodiments, the air intake layer 12 has an open end facing the outside, and the open end is detachably connected to the rear cover 15. Specifically, the open end is detachably connected to the rear cover 15 via a snap-fit ​​structure, and the rear cover 15 is provided with the air intake 4. When maintenance is required, the rear cover 15 can be removed for maintenance.

[0036] In some embodiments, the rear cover 15 has an inner locking arm 16 and an outer locking arm 17 extending toward the air intake layer 12 on at least one side. A waterproof space 19 is provided between the inner locking arm 16 and the outer locking arm 17, and both the inner locking arm 16 and the outer locking arm 17 are provided with through air inlets 4. The number of air inlets 4 is at least one, and preferably, the air inlets 4 of the inner locking arm 16 and the outer locking arm 17 are arranged opposite to each other. With this design, water entering from the air inlet 4 of the outer locking arm 17 will flow away through the waterproof space 19, and outdoor rainwater is less likely to enter the receiving cavity 2.

[0037] In some embodiments, the sidewall of the air intake layer 12 is provided with a latching protrusion 18 extending into the receiving cavity 2. In the direction from the air intake layer 12 to the air outlet layer 13, the latching protrusion 18 engages between the inner latching arm 16 and the outer latching arm 17. This design results in a tighter connection between the rear cover 15 and the frame 1, and better sealing.

[0038] In some embodiments, the rear cover 15 does not protrude from the frame 1. Preferably, the side of the rear cover 15 facing the outside is flush with the side of the frame 1 facing the outside. This prevents rainwater from entering the interior of the frame 1.

[0039] In some embodiments, the frame 1 partition layer includes a heat insulation layer 20 and a barrier layer 21. The heat insulation layer 20 is made of heat insulation material, and the barrier layer 21 is disposed adjacent to the heat insulation layer 20. At least one barrier layer 21 is present. The barrier layer 21 is used to block sound, improving the sound insulation performance of this embodiment. The heat insulation layer 20 is made of heat insulation material, which is a material with high strength and low thermal conductivity, such as PC, PEEK, PSU, PA, etc. The barrier layer 21 is disposed adjacent to the heat insulation layer 20, and at least one barrier layer 21 is present. Specifically, the barrier layer 21 can be disposed between the heat insulation layer 20 and the air inlet layer 12 / air outlet layer 13. This design gives this embodiment good sound insulation and heat insulation performance.

[0040] In some embodiments, the barrier layer 21 and / or the thermal insulation layer 20 are filled with a filler. The filler may be a polyurethane foam, polystyrene foam, phenolic foam, or other fillers with good thermal and sound insulation properties. This further improves the sound and thermal insulation performance of this embodiment.

[0041] Reference Figures 1 to 5 This utility model also discloses a fresh air system door and window, including the window frame with the cover plate 7 mentioned above, and a fresh air system module 3 disposed in the receiving cavity 2. The fresh air system module 3 has an air inlet end 32 and an air outlet end 33. The air inlet end 32 is connected to the air inlet 4, and the air outlet end 33 is connected to the exhaust port 11. Air enters the interior of the receiving cavity 2 from the air inlet 4, and then enters the interior of the fresh air system module 3 from the air inlet end 32. After purification, the air is discharged from the air outlet end 33 and enters the room from the exhaust port 11.

[0042] In some embodiments, the fresh air system doors and windows are also equipped with a control panel 34, which can be mechanical or touch-sensitive. Preferably, the control panel 34 is also equipped with a display screen. The control panel 34 can be installed in the window frame or outside the window frame, for example, by leading a wire to install the control panel 34 on the wall.

[0043] Example 2

[0044] The similarities between this embodiment and Embodiment 1 will not be repeated here.

[0045] Reference Figure 6 and Figure 7As shown, the fresh air system door and window of this embodiment includes a frame 1 and a fresh air system module 3. The frame 1 has an internal receiving cavity 2. At least one air inlet 4 is provided on one side of the receiving cavity 2, and an opening 5 is provided on the other side. The fresh air system module 3 is installed into the receiving cavity 2 through the opening 5. A power connector can be provided inside the receiving cavity 2, and the fresh air system module 3 can be electrically connected to the power connector 22 via a quick-connect coupling. This design facilitates user assembly and disassembly.

[0046] The fresh air system module 3 has an air inlet 32 ​​and an air outlet 33. The air inlet 32 ​​is connected to the air inlet 4, and the air outlet 33 faces the interior. Outdoor air enters the room after passing through the air inlet 4, the air inlet 32, and the air outlet 33 in sequence. Specifically, when viewed from the opening 5 towards the air inlet 4, or from the interior towards the exterior, at least a portion of the fresh air system module 3 is exposed. This design in this embodiment eliminates the need for a separate cover plate 7, allowing the air outlet 33 of the fresh air system module 3 to blow air directly into the room, improving the intensity and efficiency of the airflow. Furthermore, this structure offers higher integration, improving assembly efficiency and reducing overall manufacturing costs.

[0047] In some embodiments, a panel 24 is provided on the indoor-facing side of the fresh air system module 3. The panel 24 is integrally formed with the fresh air system module 3; specifically, the panel 24 is part of the fresh air system module 3 and is integrally molded with the outer shell of the fresh air system module 3. Viewed from indoors to outdoors, the area of ​​the panel 24 is larger than the area of ​​the opening 5. The panel 24 covers the opening 5. Preferably, the surface of the panel 24 away from the air inlet 32 ​​is flush with the adjacent surface of the frame 1; that is, the panel 24 does not protrude from the frame 1. This improves the smoothness and aesthetics of the outer surface of this embodiment.

[0048] In some embodiments, the control panel 34 is disposed on the panel 24.

[0049] In some embodiments, the fresh air system module 3 is connected to the frame 1 via a detachable structure. When maintenance is required, the fresh air system module 3 can be disassembled for maintenance, such as directly removing the fresh air system module 3 for cleaning, which is more convenient and efficient.

[0050] In some embodiments, the detachable structure includes a locking part 8 and a locked part 9 that mates with the locking part 8. The locking part 8 is disposed on the fresh air system module 3, and the locked part 9 is disposed on the frame 1. The fresh air system module 3 is locked and connected to the frame 1. Specifically, the locking part 8 is disposed on the panel 24 and extends toward the interior of the receiving cavity 2; the locked part 9 is disposed within the receiving cavity 2. This design allows the fresh air system module 3 to be installed without tools, improving installation efficiency and facilitating user assembly and disassembly of the fresh air system module 3.

[0051] In some embodiments, the edge of the opening 5 is provided with an outwardly extending flange 10, and the panel 24 abuts against the flange 10. Further, a sealing element 25 is provided between the flange 10 and the panel 24. Specifically, at least one of the flange 10 or the panel 24 is provided with a groove 26, the groove 26 being disposed along the length direction of the flange 10, and the sealing element 25 being disposed within the groove 26. This improves the sealing performance between the fresh air system module 3 and the frame 1 in this embodiment.

[0052] In some embodiments, the receiving cavity 2 is provided with at least an air intake layer 12 and a partition layer. The partition layer is disposed between the opening 5 and the air intake layer 12, and the partition layer is provided with a through channel 14. The fresh air system module 3 is disposed in the channel 14. It is understood that the fresh air system module 3 and the partition layer separate the air intake layer 12 from the opening 5, and the air in the air intake layer 12 needs to be purified by the fresh air system module 3 before entering the room.

[0053] In some embodiments, the partition layer includes a heat insulation layer 20 and a barrier layer 21. The heat insulation layer 20 is made of heat insulation material, and the barrier layer 21 is disposed adjacent to the heat insulation layer 20. At least one barrier layer 21 is provided. Specifically, the barrier layer 21 may be disposed between the heat insulation layer 20 and the air intake layer 12 / opening 5. This design gives this embodiment good sound insulation and heat insulation performance.

[0054] The above embodiments do not limit the scope of protection of this invention. All equivalent modifications and variations made by those skilled in the art without departing from the overall concept of this invention are still within the scope of this invention.

Claims

1. A type of door and window for a fresh air system, characterized in that, The system includes a frame and a fresh air system module. The frame has an internal cavity with at least one air inlet on one side and an opening on the other side. The fresh air system module is installed into the cavity through the opening. The fresh air system module has an air inlet and an air outlet. The air inlet is connected to the air inlet, and the air outlet faces the room. Outdoor air enters the room after passing through the air inlet, the air inlet, and the air outlet in sequence. When viewed from inside the room, at least a portion of the fresh air system module is exposed to the outside.

2. The fresh air system doors and windows according to claim 1, characterized in that, The fresh air system module has a panel on the side facing the room. The panel is integrated with the fresh air system module. When viewed from inside to outside, the area of ​​the panel is larger than the area of ​​the opening.

3. The fresh air system doors and windows according to claim 1, characterized in that, The fresh air system module is connected to the frame via a detachable structure.

4. The fresh air system doors and windows according to claim 3, characterized in that, The detachable structure includes a locking part and a locking part that mates with the locking part. The locking part is disposed on the fresh air system module, and the locking part is disposed on the frame. The fresh air system module is locked and connected to the frame.

5. The fresh air system doors and windows according to claim 2, characterized in that, The edge of the opening is provided with an outwardly extending flange, and the panel abuts against the flange.

6. The fresh air system doors and windows according to claim 5, characterized in that, A sealing element is provided between the flange and the panel.

7. The fresh air system doors and windows according to claim 1, characterized in that, The accommodating cavity is provided with at least an air inlet layer and a partition layer. The partition layer is disposed between the opening and the air inlet layer, and the partition layer is provided with a through channel. The fresh air system module is disposed in the channel.

8. The fresh air system doors and windows according to claim 7, characterized in that, The air intake layer has an open end facing the outside, and the open end is detachably connected to a rear cover via a snap-fit ​​structure. The rear cover has the air intake port.

9. The fresh air system doors and windows according to claim 8, characterized in that, The rear cover has an inner locking arm and an outer locking arm extending towards the air intake layer on at least one side. A waterproof space is provided between the inner locking arm and the outer locking arm, and both the inner locking arm and the outer locking arm are provided with through air intakes.

10. The fresh air system doors and windows according to claim 7, characterized in that, The separation layer includes a heat insulation layer and a barrier layer. The heat insulation layer is made of heat insulation material, and the barrier layer is disposed adjacent to the heat insulation layer. The number of the barrier layer is at least one.