Fresh air tuyere device and fresh air system

Abstract

The application discloses a fresh air air port device and a fresh air system, which mainly comprises a main shell, a return air panel, a return air filter screen, a fresh air filter screen, an outdoor rainproof cap and a device air inlet and the like. The main shell is directly embedded and installed in a wall body, the return air filter screen and the fresh air filter screen are compactly installed in the shell, a square or circular return air panel is covered above, the return air volume can be freely adjusted through the return air louvers, the fresh air filter screen is provided with a conical structure, the stress point of inward extraction is greatly fixed, the danger of high-altitude outdoor maintenance of the traditional device is overcome, the user only needs to disassemble the indoor return air panel, and all filter screen extraction and replacement operations can be easily completed indoors, outdoor operation is not needed, and the technical effects of fresh air introduction, return air circulation, multifunctional integration and simple maintenance are considered.

Description

Technical Field

[0001] This invention relates to the field of fresh air equipment technology, and in particular to a fresh air vent device and a fresh air system. Background Technology

[0002] With the development of indoor air purification and building ventilation technologies, fresh air system technology has emerged. The main feature of this technology is its ability to filter fresh outdoor air and introduce it indoors in real time, accelerating air circulation and effectively improving indoor air quality. As the public's demands for healthy living environments increase, fresh air equipment is gradually expanding from the pre-installation market in new homes to the post-installation market after renovations are completed, leading to the current common use of through-wall fresh air vents or traditional ventilation outlets.

[0003] In traditional technology, the common practice for introducing fresh air into a building involves creating openings in the building walls and installing external air vents to connect the indoor and outdoor spaces. To ensure the cleanliness of the introduced air, these devices or the connected fresh air ducts are typically equipped with purification and protection components such as insect screens, water baffles, and filters. In traditional system layouts, the introduction of fresh air and the return of indoor air are often independent, requiring separate ductwork and independent vent terminals. Regarding installation and routine maintenance, outdoor installation and maintenance are commonly used in China, requiring personnel to access the exterior of the building to secure, clean, or replace materials at the vents.

[0004] However, current through-wall fresh air vents or traditional ventilation devices suffer from cumbersome construction and extremely difficult and dangerous maintenance. Firstly, for the aftermarket, the traditional single-function design means that to simultaneously achieve fresh and return air, multiple holes need to be drilled in the wall. This significantly increases construction difficulty and cost, and easily damages the user's original interior wall decoration. Secondly, the maintenance of traditional devices is very troublesome, especially when replacing filters, which often requires operators to go outdoors. In high-rise buildings, this outdoor high-altitude work is not only extremely difficult but also highly dangerous, seriously threatening the personal safety of maintenance personnel. Even if some vents are installed indoors, their internal structure remains complex, and the process of removing and installing filter consumables is very cumbersome. Therefore, the current market urgently needs a new type of vent that can adapt to the aftermarket, is easy to install, and integrates return and fresh air functions with just one hole. Simultaneously, the internal design of this device must allow users to safely and conveniently replace all filters entirely indoors. Summary of the Invention

[0005] Therefore, it is necessary to provide a fresh air outlet device and a fresh air system to address the above problems.

[0006] This application provides a fresh air vent device, including a main housing, a return air panel and a filter assembly. The main housing is inserted into an opening in the wall, and an indoor air vent is provided on one end of the main housing that extends into the room. The return air panel is detachably installed on the indoor air vent, and the filter assembly is disposed in the cavity formed by the main housing and the return air panel.

[0007] The main housing is provided with a fresh air inlet and an equipment air inlet at one of its outdoor ends. The equipment air inlet is used to connect to the air inlet of the fresh air equipment, and the fresh air inlet is used to connect to the outside to introduce fresh air.

[0008] Optionally, the filtration assembly includes a return air filter and a fresh air filter. The return air filter is located between the return air panel and the main housing and is used to filter indoor return air. The fresh air filter is located inside the main housing near the fresh air inlet and is used to filter the introduced fresh air.

[0009] Optionally, the outer diameter of one end of the fresh air filter is adapted to the inner diameter of the fresh air vent, and the other end extends toward the indoor vent, while the outer diameter of the other end tapers toward the indoor vent to form a raised structure that is easy to remove.

[0010] Optionally, the axis of the fresh air vent and the axis of the indoor air vent are arranged collinearly.

[0011] Optionally, the axis of the fresh air inlet and the axis of the equipment air inlet are set at an angle.

[0012] Optionally, the fresh air vent is provided with a rain cap, the top of which extends away from the main housing to form an opening towards the ground.

[0013] Optionally, the return air panel is provided with return air louvers on the side facing the room, and the return air louvers are rotatably connected to the return air panel; The return air louver has a closed state that covers the return air panel to reduce the return air volume, and an open state that is perpendicular to the return air panel to increase the return air volume. Under the action of external force, the return air louver rotates and switches between the closed state and the open state.

[0014] Optionally, the fresh air vent and the indoor air vent have the same diameter, the main housing is provided with a pull-out assembly, the pull-out assembly is slidably disposed in the cavity corresponding to the fresh air vent and the indoor air vent, and the filter assembly is detachably disposed on the pull-out assembly.

[0015] Optionally, the fresh air vent is equipped with an insect-proof net.

[0016] This application also provides a fresh air system, including the aforementioned fresh air vent device.

[0017] Compared with the prior art, the technical solution provided in this application has the following advantages: In the aforementioned fresh air vent device, during construction and installation, the main housing is inserted into an opening in the wall. This means that only one hole needs to be drilled in the wall to complete the embedding of the main structure, greatly simplifying the construction process and reducing damage to the wall. An indoor air vent is located on the end of the main housing extending into the room, while the return air panel is detachably installed on the indoor air vent. The filter assembly is housed within the cavity formed by the main housing and the return air panel. This design allows operators to directly access and maintain the internal components from inside the room simply by removing the indoor return air panel, eliminating the need to operate outdoors and significantly improving the convenience of daily maintenance. Furthermore, the outdoor end of the main housing has both a fresh air vent and an equipment air inlet. The equipment air inlet is specifically for connecting to the air intake of the indoor fresh air equipment, while the fresh air vent connects to the outside to introduce outdoor fresh air, effectively integrating the fresh air introduction function. Attached Figure Description

[0018] Figure 1 A structural sectional view of the fresh air vent device provided in this application in its wall-mounted state; Figure 2 A structural schematic diagram of the main casing and the distribution of each air outlet channel provided in this application; Figure 3 A front view schematic diagram of the structure of the fresh air filter and the rain cap provided in this application; Figure 4 A cross-sectional view of the air vent device containing a pull-out assembly provided for this application; Figure 5 A cross-sectional view of the air outlet device for fresh air using the same sheet filter structure as provided in this application.

[0019] Explanation of reference numerals in the attached figures: 1. Main casing; 11. Indoor air outlet; 12. Fresh air outlet; 13. Equipment air inlet; 2. Return air panel; 3. Filter assembly; 31. Return air filter; 32. Fresh air filter; 4. Wall; 5. Rain cap; 6. Pull-out assembly. Detailed Implementation

[0020] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0021] See Figure 1 and Figure 2 An embodiment of the present invention provides a fresh air vent device, including a main housing 1, a return air panel 2, and a filter assembly 3. The main housing 1 is inserted into an opening in a wall 4. An indoor air vent 11 is provided on the end of the main housing 1 extending into the room. The return air panel 2 is detachably installed on the indoor air vent 11. The filter assembly 3 is disposed within the cavity formed by the main housing 1 and the return air panel 2. A fresh air vent 12 and an equipment air inlet 13 are provided on the outdoor end of the main housing 1. The equipment air inlet 13 is used to connect to the air inlet of the fresh air equipment, and the fresh air vent 12 is used to connect to the outside to introduce fresh air. In the specific construction and installation process of the fresh air vent device provided in this embodiment, the main housing 1 is inserted into the opening in the wall 4, which means that only one hole needs to be made in the wall 4 to complete the embedded installation of the main structure, greatly simplifying the construction process and reducing the degree of damage to the wall 4. An indoor air vent 11 is provided on the end of the main housing 1 extending into the room, and the return air panel 2 is detachably installed on the indoor air vent 11. The filter assembly 3 is housed within the cavity formed by the main housing 1 and the return air panel 2. This design allows operators to directly access and maintain the internal components from indoors simply by removing the indoor return air panel 2, eliminating the need to operate outdoors and significantly improving the convenience of daily maintenance. Furthermore, the main housing 1 has a fresh air inlet 12 and an equipment air inlet 13 on its outdoor end. The equipment air inlet 13 is specifically designed to connect to the air intake of the indoor fresh air system, while the fresh air inlet 12 connects to the outdoor environment to introduce outdoor fresh air, effectively integrating the fresh air introduction function.

[0022] See Figure 1 In one embodiment, the filter assembly 3 includes a return air filter 31 and a fresh air filter 32. The return air filter 31 is located between the return air panel 2 and the main housing 1, and is used to filter indoor return air. The fresh air filter 32 is located inside the main housing 1 near the fresh air inlet 12, and is used to filter the introduced fresh air. This embodiment further defines the specific structure of the filter assembly 3 based on the above embodiments. The filter assembly 3 specifically includes two core filter components: the return air filter 31 and the fresh air filter 32. In terms of positional arrangement, the return air filter 31 is located between the return air panel 2 and the main housing 1. This arrangement is mainly used to perform preliminary impurity filtration on indoor air before it is drawn back into the system, ensuring the cleanliness of the return air. At the same time, the fresh air filter 32 is located inside the main housing 1 near the fresh air inlet 12, and its main function is to intercept and filter dust and particulate matter carried in the fresh air introduced from the outside. By setting up independent filtration structures for return air and fresh air respectively, the device can simultaneously purify indoor air circulation and filter outdoor fresh air circulation. Both filters are located inside the housing, making it convenient to replace and clean them indoors.

[0023] See Figure 1In one embodiment, the outer diameter of one end of the fresh air filter 32 is adapted to the inner diameter of the fresh air vent 12, while the other end extends towards the indoor air vent 11, and its outer diameter tapers towards the indoor air vent 11 to form a protruding structure that is easy to remove. To facilitate filter replacement, this embodiment structurally optimizes the physical form of the fresh air filter 32. Specifically, the outer diameter of one end of the fresh air filter 32 is adapted to the inner diameter of the fresh air vent 12 to ensure that fresh air entering from the outside is completely purified by the filter. More ingeniously, the other end of the fresh air filter 32 extends towards the indoor air vent 11, and its outer diameter gradually tapers towards the indoor air vent 11, thus forming a protruding structure that is easy to remove, resembling a cone shape. This converging protrusion structure brings significant technical benefits. When the user removes the return air panel 2 indoors to replace the filter, this inwardly protruding part can serve as an excellent force point, greatly conforming to the habit of human hand gripping, allowing the user to easily and effortlessly pull out the fresh air filter 32, which is deeply embedded inside the main housing 1, towards the indoor side.

[0024] See Figure 1 and Figure 2 In one embodiment, the axis of the fresh air vent 12 and the axis of the indoor air vent 11 are collinear. In embodiments that further optimize the duct structure and extraction experience, this solution specifies that the axis of the fresh air vent 12 and the axis of the indoor air vent 11 are collinear. This collinear design means that a relatively straight through-flow channel is formed inside the main housing 1 from the outdoor fresh air vent 12 to the indoor air vent 11. The most direct effect of this technical feature is a significant reduction in local resistance during airflow, making the flow of fresh and return air smoother. At the same time, the straight-through cavity structure also provides an unobstructed straight path for the installation and extraction of the aforementioned fresh air filter 32. When the user pulls the filter outward from the indoor air vent 11 end, the filter can be smoothly pulled out along the collinear axis direction, completely avoiding the jamming problem caused by cavity bending, and further realizing the design intention of easily completing maintenance entirely indoors.

[0025] See Figure 1 and Figure 2In one embodiment, the axis of the fresh air vent 12 and the axis of the equipment inlet 13 are set at an angle. To rationally plan the airflow direction inside the main housing 1 and accommodate the connection requirements of the fresh air equipment, this embodiment designs the axis of the fresh air vent 12 and the axis of the equipment inlet 13 to be set at an angle. In this structural layout, the equipment inlet 13 is no longer on the same straight line as the fresh air vent 12, but forms a certain deflection angle. Since the equipment inlet 13 needs to connect to the fresh air equipment, this angled, non-collinear design can effectively separate the flow direction of the outdoor fresh air entering the main housing 1 from the flow direction drawn away by the fresh air equipment, allowing the airflow drawn by the equipment to enter the duct of the fresh air equipment more smoothly under the action of an angled guiding surface. At the same time, this layout also reserves sufficient space inside the main housing 1 to accommodate the fresh air filter 32 and the return air assembly, avoiding physical interference between the interfaces in a confined space.

[0026] See Figure 1 In one embodiment, a rain cap 5 is provided on the fresh air vent 12. The top of the rain cap 5 extends outward from the main housing 1 to form an opening towards the ground. Considering the weather resistance and safety of the fresh air vent device in outdoor environments, this embodiment adds a rain cap 5 to the fresh air vent 12 at the outdoor end of the main housing 1. Specifically, the top of the rain cap 5 is designed to extend outward from the main housing 1, and due to this extension and shielding, a unified opening towards the ground is naturally formed. This design with a rain cap 5 having a downward opening produces a very intuitive technical effect: in rainy or snowy weather, gravity and the top shielding effectively prevent rainwater or snowmelt from being blown back into the main housing 1. This not only protects the internal filter components 3 from moisture damage but also prevents outdoor moisture from flowing into the room along the main housing 1 or damaging the connected fresh air equipment, greatly enhancing the reliability of the entire device under harsh weather conditions.

[0027] See Figure 1In one embodiment, a return air louver is provided on the indoor-facing side of the return air panel 2, and the return air louver is rotatably connected to the return air panel 2. The return air louver has a closed state that covers the return air panel 2 to reduce the return air volume, and an open state that is perpendicular to the return air panel 2 to increase the return air volume. Under the action of external force, the return air louver rotates and switches between the closed and open states. This embodiment aims to provide a control structure that can flexibly adjust the return air volume. To this end, a return air louver is provided on the indoor-facing side of the return air panel 2, and the return air louver is combined with the return air panel 2 by a rotatable connection. During use, the return air louver has two extreme working states: one is the closed state that covers the surface of the return air panel 2, in which the louver blades block most of the return air channel, thereby significantly reducing the indoor return air volume; the other is the open state that rotates to be perpendicular to the return air panel 2, in which the channel reaches its maximum cross-sectional area, which can effectively increase the return air volume. Users can apply external force to move the louvers according to their actual ventilation needs or perceived indoor temperature, allowing them to switch between closed and open states steplessly, thus enabling free adjustment of the indoor return air intensity.

[0028] See Figure 4 and Figure 5 In one embodiment, the fresh air vent 12 and the indoor air vent 11 have the same diameter. A pull-out assembly 6 is provided inside the main housing 1. The pull-out assembly 6 is slidably disposed within the corresponding cavities of the fresh air vent 12 and the indoor air vent 11. The filter assembly 3 is detachably disposed on the pull-out assembly 6. Based on the aforementioned embodiment where the fresh air vent 12 and the indoor air vent 11 are collinear, this embodiment, to maximize the advantage of convenient filter replacement indoors, further limits the inner diameter of the fresh air vent 12 and the indoor air vent 11 to equal dimensions. Furthermore, a pull-out assembly 6 is added inside the main housing 1. This pull-out assembly 6 is slidably disposed within the through-cavities corresponding to the equal-diameter fresh air vent 12 and the indoor air vent 11, while the filter assembly 3 is detachably fixed to this pull-out assembly 6. Thanks to the equal-diameter cavity channel design, the pull-out assembly 6 is not hindered by changes in aperture during sliding. When replacement or maintenance is required, users can simply pull out the entire filter assembly 3 by grasping the indoor end of the pull-out component 6, just like pulling out a drawer. This modular pull-out design further reduces the difficulty of maintenance for users.

[0029] See Figure 5Based on the above embodiment including the pull-out assembly 6, in order to further simplify the filter manufacturing process and improve the versatility of later maintenance, this embodiment structurally replaces and optimizes the specific form of the filter assembly 3. Specifically, in the scheme using the pull-out assembly 6, the fresh air filter 32 no longer uses the aforementioned constricted protrusion or conical shape, but is designed as a sheet structure exactly the same as the return air filter 31, and both are compactly embedded in the preset slot or receiving frame of the pull-out assembly 6. When the pull-out assembly 6 is pushed into the main housing 1, these sheet filters can be stably intercepted on their respective corresponding airflow channel cross-sections. When both the fresh air filter 32 and the return air filter 31 adopt the same sheet structure and are embedded in the pull-out assembly 6, this design achieves standardization of the core consumables, greatly reducing the cost for manufacturers in the filter mold opening, manufacturing, and stocking stages. Secondly, during routine maintenance, since the fresh air filter 32 and the return air filter 31 are identical in size and shape, users do not need to carefully distinguish between their models or purchase different consumables separately. During operation, users simply pull out the pull-out assembly 6 as if opening a drawer, remove the old sheet filter, replace it with a new sheet filter of the same specification, and then push it back into place. This design, which flatly embeds the sheet filter into the pull-out assembly 6, not only maximizes the use of the internal space of the main housing 1 but also makes the filter installation and removal as simple and intuitive as inserting and removing a card, further enhancing the convenience and error-proofing of indoor filter replacement to a whole new level.

[0030] See Figure 3 In one embodiment, an insect screen is provided on the fresh air vent 12. To further improve the fresh air vent device's ability to defend against outdoor environmental debris, this embodiment specifically sets up an insect screen on the fresh air vent 12. The insect screen is usually tightly attached to the air intake section of the fresh air vent 12. It can act as an external physical defense line for the system, effectively intercepting large outdoor debris such as mosquitoes, flies, and other flying insects before outdoor air is drawn into the main housing 1. This not only ensures the relative cleanliness of the air entering the equipment from the source, but more importantly, it greatly reduces the filtration burden on the internal fresh air filter 32, avoiding the problem of reduced ventilation efficiency caused by large flying insects quickly clogging the filter, and ensuring the smooth operation of the vent device.

[0031] See Figure 1To further enhance the aesthetics and compatibility of the fresh air vent device within the indoor environment, in one embodiment, the shape of the exposed components is flexibly designed. Specifically, the return air panel 2 installed on the indoor vent 11 can be square or round. This diverse choice of panel shape produces a very intuitive and practical technical effect. In the face of a complex and ever-changing aftermarket, users' interior decoration styles, wall structures, and ceiling designs often vary. Designing the return air panel 2 as square or round greatly facilitates installation personnel in perfectly matching the actual interior decoration lines or visual requirements. For example, a square panel fits well with a modern minimalist decoration style with straight geometric lines, while a round panel blends more naturally into a relatively soft or traditional interior design. This design not only improves the product's aesthetic compatibility, allowing the entire vent device to efficiently achieve the integrated function of fresh air and return air without abruptly disrupting the overall aesthetics of the room, but also further broadens the market application range of this device in various residential or commercial office environments.

[0032] See Figures 1 to 5 This invention also provides a fresh air system, including the aforementioned fresh air vent device. This embodiment discloses a fresh air system whose core feature is that it fully incorporates the aforementioned integrated fresh air vent device. Due to the inclusion of the highly integrated, simple-to-install, and extremely convenient-to-maintain vent device, the entire fresh air system exhibits significant advantages in practical applications. During the construction phase, the main components can be installed by simply drilling a hole in the wall 4. During the user's daily usage lifespan, since filter replacement is completely moved indoors, users can independently perform regular maintenance on the entire fresh air system, completely eliminating the reliance on high-altitude exterior wall work in the traditional aftermarket. Therefore, this fresh air system using the integrated fresh air vent device not only greatly facilitates application in the aftermarket but also makes subsequent filter replacement safer and more convenient.

[0033] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0034] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. A fresh air vent device, characterized in that, The system includes a main housing (1), a return air panel (2), and a filter assembly (3). The main housing (1) is installed through an opening in the wall (4). An indoor air vent (11) is provided on one end of the main housing (1) that extends into the room. The return air panel (2) is detachably installed on the indoor air vent (11). The filter assembly (3) is disposed in the cavity formed by the main housing (1) and the return air panel (2). The main housing (1) is provided with a fresh air inlet (12) and an equipment air inlet (13) at one end outdoors. The equipment air inlet (13) is used to connect to the air inlet of the fresh air equipment, and the fresh air inlet (12) is used to connect to the outside to introduce fresh air.

2. The fresh air vent device according to claim 1, characterized in that, The filter assembly (3) includes a return air filter (31) and a fresh air filter (32). The return air filter (31) is located between the return air panel (2) and the main housing (1) and is used to filter the indoor return air. The fresh air filter (32) is located inside the main housing (1) near the fresh air inlet (12) and is used to filter the introduced fresh air.

3. The fresh air vent device according to claim 1, characterized in that, The outer diameter of one end of the fresh air filter (32) is adapted to the inner diameter of the fresh air vent (12), and the other end extends toward the indoor vent (11), and the outer diameter of the other end converges toward the indoor vent (11) to form a protruding structure that is easy to extract.

4. The fresh air vent device according to claim 1, characterized in that, The axis of the fresh air vent (12) and the axis of the indoor air vent (11) are set collinearly.

5. The fresh air vent device according to claim 1, characterized in that, The axis of the fresh air inlet (12) and the axis of the equipment air inlet (13) are set at an angle.

6. The fresh air vent device according to claim 1, characterized in that, The fresh air vent (12) is provided with a rain cap (5), the top of which extends away from the main housing (1) to form an opening toward the ground.

7. The fresh air vent device according to claim 1, characterized in that, The return air panel (2) is provided with return air louvers on the side facing the room, and the return air louvers are rotatably connected to the return air panel (2). The return air louver has a closed state that covers the return air panel (2) to reduce the return air volume, and an open state that is perpendicular to the return air panel (2) to increase the return air volume. Under the action of external force, the return air louver rotates and switches between the closed state and the open state.

8. The fresh air vent device according to claim 4, characterized in that, The fresh air vent (12) and the indoor air vent (11) have the same diameter. The main housing (1) is provided with a pull-out assembly (6). The pull-out assembly (6) is slidably disposed in the corresponding cavities of the fresh air vent (12) and the indoor air vent (11). The filter assembly (3) is detachably disposed on the pull-out assembly (6).

9. The fresh air vent device according to claim 1, characterized in that, The fresh air vent (12) is equipped with an insect-proof net.

10. A fresh air system, characterized in that, An air vent device comprising any one of claims 1-9.

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