A fresh air system
By designing a fresh air system with multiple sets of circulating air inlets and fresh air outlets, the problem of low adaptability to the installation environment of existing equipment has been solved, enabling a more flexible installation method and reducing installation difficulty.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGDONG WONDERFUL ELECTRONIC THERMAL CONTROL TECH CO LTD
- Filing Date
- 2025-04-22
- Publication Date
- 2026-06-12
AI Technical Summary
Existing air purification equipment has a single type of air circulation outlet, resulting in low adaptability to the installation environment and high installation difficulty.
Design a fresh air system including a housing, a circulating air component and a fresh air component. The circulating air component is provided in at least two sets. By setting multiple circulating air vents and fresh air vents, multiple installation methods can be achieved, reducing the difficulty of installation.
This improves the adaptability of the fresh air system to different installation environments, reduces installation difficulty, and enhances installation flexibility and convenience.
Smart Images

Figure CN224353174U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of air treatment technology, specifically to a fresh air system. Background Technology
[0002] With rising living standards, energy and the environment have become increasingly important concerns. The growing demand for environmental protection and energy conservation has led to the installation of fresh air systems in most residential and public buildings. A fresh air system is an effective air purification device that circulates indoor air. It not only expels polluted indoor air but also introduces fresh outdoor air through sterilization, disinfection, and filtration, ensuring that the indoor air is always fresh and clean, thus achieving both indoor-outdoor air exchange and internal air circulation.
[0003] However, existing air purification equipment has a single circulating air outlet. During installation, it is necessary to select a fresh air unit that is compatible with the installation environment or to modify the installation environment. This results in low adaptability of existing equipment to the installation environment and makes the installation of fresh air units difficult. Utility Model Content
[0004] The purpose of this invention is to provide a fresh air system that solves the problem that existing equipment has a single circulating air outlet, resulting in low adaptability to the installation environment and high installation difficulty.
[0005] To achieve the above objectives, this utility model adopts the following technical solution: a fresh air system, comprising:
[0006] The housing is provided with an air outlet, a blower and an air supply duct, and the two ends of the air supply duct are respectively connected to the air outlet of the blower and the air outlet;
[0007] The circulating air assembly includes at least two sets, each set comprising a circulating air outlet, a circulating air valve, and a circulating air duct. The circulating air outlet and the circulating air valve are both mounted on the housing, and the circulating air valve is installed inside the housing. The air inlet of the circulating air valve is connected to the circulating air outlet, and the two ends of the circulating air duct are respectively connected to the air outlet of the circulating air valve and the air inlet of the blower.
[0008] The fresh air assembly includes a fresh air inlet, a fresh air valve, and a fresh air duct. The fresh air inlet and the fresh air valve are both installed on the housing. The fresh air valve is installed inside the housing. The air inlet of the fresh air valve is connected to the fresh air inlet. The two ends of the fresh air duct are connected to the air outlet of the fresh air valve and the air inlet of the blower, respectively.
[0009] According to one embodiment of the present invention, the fresh air assembly further includes a fresh air filter, which is detachably installed in the housing and located between the fresh air valve and the fresh air inlet.
[0010] According to one embodiment of the present invention, the housing is further provided with an exhaust assembly, which includes a return air inlet, an exhaust air outlet, an exhaust valve, an exhaust fan, and an exhaust duct. The exhaust valve and the exhaust fan are detachably installed inside the housing. The air outlet of the exhaust valve is connected to the exhaust fan, the air outlet of the exhaust fan is connected to the exhaust air outlet, and the two ends of the exhaust duct are respectively connected to the return air inlet and the air inlet of the exhaust valve.
[0011] According to one embodiment of the present invention, the exhaust assembly further includes an exhaust sensor, which is detachably installed inside the housing and located inside the exhaust duct.
[0012] According to one embodiment of the present invention, an adjustment component is further provided inside the housing. The adjustment component includes an evaporator and an air supply filter. The evaporator and the air supply filter are detachably installed inside the housing. The evaporator and the air supply filter are both located inside the air supply duct. The air supply filter is located between the evaporator and the blower.
[0013] According to one embodiment of the present invention, the regulating component further includes a total heat exchanger, which is detachably installed inside the housing, and the exhaust duct and the fresh air duct are intersected through the total heat exchanger.
[0014] According to one embodiment of the present invention, a bypass assembly is further provided inside the housing. The bypass assembly includes a bypass valve and a bypass channel. The air inlet end of the bypass valve is connected to the fresh air channel, and the two ends of the bypass channel are respectively connected to the air outlet end of the bypass valve and the air inlet end of the exhaust duct.
[0015] According to one embodiment of the present invention, the bypass assembly further includes a bypass sensor, which is detachably installed in the bypass channel.
[0016] According to one embodiment of the present invention, a controller is also provided inside the housing, and the circulating air valve, bypass valve, fresh air valve and exhaust air valve are all electrically connected to the controller.
[0017] According to one embodiment of the present invention, at least one set of the circulating air assembly is provided on the left and right sides of the housing.
[0018] Compared with existing technologies, the fresh air system of this utility model has the following advantages:
[0019] This utility model discloses a fresh air system. Through the arrangement of a housing, a circulating air assembly, and a fresh air assembly, at least two sets of circulating air vents are provided. During installation, the user only needs to expose the air supply vent and at least one set of circulating air vents to the indoor space. The fresh air vents are connected to the outside air. During use, the user opens the circulating air valve corresponding to the exposed circulating air vent, starts the air supply fan, and the fan generates airflow. Air passes sequentially through the circulating air vent, circulating air valve, circulating air duct, air supply fan, and air supply duct before being discharged from the air supply vent, thus achieving air circulation. When fresh air is needed indoors, the fresh air valve is opened, allowing outdoor fresh air to pass sequentially through the fresh air vent, fresh air valve, and fresh air duct, bringing outdoor air into the room. This allows the fresh air system to adapt to a wider range of installation environments, reducing installation difficulty. Attached Figure Description
[0020] To more clearly illustrate the specific embodiments of this utility model, the accompanying drawings used in the specific embodiments will be briefly described below. In all the drawings, the elements or parts are not necessarily drawn to scale.
[0021] Figure 1 This is a schematic diagram of the overall structure of a fresh air system according to the present invention.
[0022] Figure 2 This is a front view of a fresh air system according to the present invention.
[0023] Figure 3 This is a cross-sectional view of a fresh air system according to the present invention.
[0024] Figure 4 This is a bottom view of a fresh air system according to the present invention.
[0025] Figure 5 This is a top view of a fresh air system according to the present invention.
[0026] In the diagram: housing 10, air outlet 11, air supply fan 12, circulating air assembly 20, circulating air outlet 21, circulating air valve 22, fresh air assembly 30, fresh air inlet 31, fresh air valve 32, fresh air filter 33, exhaust assembly 40, return air outlet 41, exhaust outlet 42, exhaust valve 43, exhaust fan 44, exhaust sensor 45, regulating assembly 50, evaporator 51, air supply filter 52, total heat exchanger 53, bypass assembly 60, bypass valve 61, bypass sensor 62, controller 70.
[0027] The implementation and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation
[0028] The following drawings will disclose several embodiments of this utility model. For clarity, many practical details will be described in the following description. However, it should be understood that these practical details should not be used to limit this utility model. That is, in some embodiments of this utility model, these practical details are not essential. In addition, for the sake of simplicity, some conventional structures and components will be shown in the drawings in a simple schematic manner.
[0029] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.
[0030] Furthermore, in this utility model, the use of terms such as "first" and "second" is for descriptive purposes only and does not specifically refer to any order or sequence, nor is it intended to limit the utility model. They are merely used to distinguish components or operations described with the same technical terms and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of various embodiments can be combined with each other, but only if they are feasible for those skilled in the art. If a combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.
[0031] To further understand the content, features, and effects of this utility model, the following embodiments are provided, and detailed descriptions are given below in conjunction with the accompanying drawings:
[0032] Please see Figures 1 to 5 This utility model provides a fresh air system, including a housing 10, a circulating air component 20 and a fresh air component 30.
[0033] The housing 10 is provided with an air outlet 11, a blower 12, and an air supply duct. The two ends of the air supply duct are respectively connected to the air outlet of the blower 12 and the air outlet 11. When the blower 12 is started, the blower 12 sends air into the air supply duct and then discharges the air from the air outlet 11.
[0034] At least two sets of circulating air components 20 are provided. Each set of circulating air components 20 includes a circulating air outlet 21, a circulating air valve 22, and a circulating air duct. The circulating air outlet 21 and the circulating air valve 22 are both installed on the housing 10. The circulating air valve 22 is installed inside the housing 10, with its inlet end connected to the circulating air outlet 21. The two ends of the circulating air duct are connected to the outlet end of the circulating air valve 22 and the inlet end of the blower 12, respectively. In this embodiment, two sets of circulating air components 20 are provided. The first set of circulating air components 20 is installed on the left side of the housing 10, so that the circulating air outlet 21 of the first set is located on the left side of the housing 10. The second set of circulating air components 20 is installed on the right side of the housing 10, so that the circulating air outlet 21 of the second set is located on the right side of the housing 10. This allows workers to quickly and easily install the fresh air system by exposing only one set of circulating air outlets 21 during installation.
[0035] The fresh air assembly 30 includes a fresh air inlet 31, a fresh air valve 32, and a fresh air duct. Both the fresh air inlet 31 and the fresh air valve 32 are mounted on the housing 10. The fresh air valve 32 is installed inside the housing 10, with its inlet end connected to the fresh air inlet 31. The two ends of the fresh air duct are connected to the outlet end of the fresh air valve 32 and the inlet end of the blower 12, respectively. Through the arrangement of the fresh air assembly 30, outdoor fresh air is delivered into the room through the fresh air inlet 31, the fresh air valve 32, and the fresh air duct, ensuring fresh air indoors.
[0036] This invention, through the arrangement of the housing 10, the circulating air assembly 20, and the fresh air assembly 30, provides at least two sets of circulating air assemblies 20. During installation, the user only needs to expose the air supply vent 11 and at least one set of circulating air vents 21 to the indoor space, while the fresh air vent 31 is connected to the outside air. During use, the user opens the circulating air valve 22 corresponding to the exposed circulating air vent 21, starts the air supply fan 12, and the fan generates airflow. Air passes sequentially through the circulating air vent 21, the circulating air valve 22, the circulating air duct, the air supply fan 12, and the air supply duct before being discharged from the air supply vent 11, thus achieving air circulation. When fresh air is needed indoors, the fresh air valve 32 is opened, allowing outdoor fresh air to pass sequentially through the fresh air vent 31, the fresh air valve 32, and the fresh air duct, bringing outdoor air into the room. This allows the fresh air system to adapt to more installation environments and reduces installation difficulty.
[0037] Based on the above embodiments, please also refer to... Figure 1 and Figure 2The fresh air assembly 30 of this utility model also includes a fresh air filter 33, which is detachably installed inside the housing 10 and located between the fresh air valve 32 and the fresh air inlet 31. In this embodiment, the fresh air filter 33 is detachably installed inside the housing 10 by a snap-fit connection. By placing the fresh air filter 33 between the fresh air valve 32 and the fresh air inlet 31, the air entering the fresh air inlet 31 is filtered by the fresh air filter 33 during use, preventing pollutants from entering the room.
[0038] Based on the above embodiments, please also refer to... Figure 1 and Figure 4 The housing 10 of this utility model is further provided with an exhaust assembly 40, which includes a return air inlet 41, an exhaust air outlet 42, an exhaust valve 43, an exhaust fan 44, and an exhaust duct. Both the exhaust valve 43 and the exhaust fan 44 are detachably installed within the housing 10. The outlet end of the exhaust valve 43 is connected to the exhaust fan 44, and the outlet end of the exhaust fan 44 is connected to the exhaust air outlet 42. The two ends of the exhaust duct are respectively connected to the return air inlet 41 and the inlet end of the exhaust valve 43. In this embodiment, two return air inlets 41 are provided. The first return air inlet 41 is installed on the left side of the housing 10, and the second return air inlet 41 is installed on the right side of the housing 10. The two return air inlets 41 facilitate installation by personnel. With the exhaust assembly 40 in place, when the user turns on the exhaust fan 44 and exhaust valve 43, a suction force is generated at the return air inlet 41, causing the air entering the return air inlet 41 to pass through the exhaust duct, exhaust valve 43 and exhaust fan 44 in sequence, and then be discharged from the exhaust outlet 42, thus exhausting the indoor air to the outside.
[0039] Based on the above embodiments, please also refer to... Figure 1 and Figure 2 The exhaust assembly 40 of this utility model also includes an exhaust sensor 45, which is detachably installed inside the housing 10 and located within the exhaust duct. In this embodiment, the exhaust sensor 45 can detect humidity, temperature, and wind speed. The exhaust sensor 45 is detachably installed inside the housing 10 by screws. By providing the exhaust sensor 45, the user can easily monitor the air quality within the exhaust duct during use, thus allowing the user to understand the air conditions within the exhaust duct.
[0040] Based on the above embodiments, please also refer to... Figure 1 and Figure 2The housing 10 of this invention also includes an adjustment assembly 50, which comprises an evaporator 51 and an air supply filter 52. Both the evaporator 51 and the air supply filter 52 are detachably installed within the housing 10 and are located within the air supply duct. The air supply filter 52 is positioned between the evaporator 51 and the blower 12. In this embodiment, the evaporator 51 is detachably installed within the housing 10 by screws, and the air supply filter 52 is detachably installed within the housing 10 by snap-fit. The air supply filter 52 is a high-efficiency filter, capable of filtering at least PM2.5 and dust. During use, when air passes through the air supply filter 52, the air is filtered, and then the evaporator 51 cools or dehumidifies the air, thus achieving effective air treatment.
[0041] Based on the above embodiments, please also refer to... Figure 1 and Figure 3 The regulating component 50 of this utility model also includes a total heat exchanger 53, which is detachably installed inside the housing 10. The exhaust duct and the fresh air duct intersect through the total heat exchanger 53. In this embodiment, the total heat exchanger 53 is detachably installed inside the housing 10 by means of screws. During use, the air in the exhaust duct and the fresh air in the fresh air duct exchange heat within the total heat exchanger 53. In winter, heat from the high-temperature indoor air is transferred to the fresh air, providing initial heating and thus achieving energy recovery from the air in the exhaust duct, resulting in greater energy savings.
[0042] Based on the above embodiments, please also refer to... Figure 1 and Figure 2 The housing 10 of this utility model also includes a bypass component 60. The bypass component 60 includes a bypass valve 61 and a bypass channel. The air inlet of the bypass valve 61 is connected to the fresh air channel, and the two ends of the bypass channel are respectively connected to the air outlet of the bypass valve 61 and the air inlet of the exhaust duct. With the bypass component 60, when the user needs to replenish indoor air during exhaust, they can open the bypass valve 61, allowing air to enter from the fresh air inlet 31, pass through the bypass valve 61 and the bypass channel, and then enter the exhaust duct, thereby replenishing the air exhausted from the room and preventing a reduction in indoor air volume and the occurrence of negative pressure.
[0043] Based on the above embodiments, please also refer to... Figure 1 and Figure 2The bypass assembly 60 of this invention also includes a bypass sensor 62, which is detachably installed in the bypass channel. With the bypass sensor 62, after the user opens the bypass valve 61, the bypass sensor 62 can detect the temperature, humidity, and velocity of the air in the bypass channel, thus facilitating understanding of the air conditions within the bypass channel.
[0044] Based on the above embodiments, please also refer to... Figure 1 and Figure 2 The housing 10 of this utility model also includes a controller 70, and the circulating air valve 22, bypass valve 61, fresh air valve 32, and exhaust valve 43 are all electrically connected to the controller 70. Through the controller 70, the user can control the circulating air valve 22, bypass valve 61, fresh air valve 32, or exhaust valve 43 in a timely manner during use, facilitating the opening or closing of these valves.
[0045] Based on the above embodiments, please also refer to... Figure 1 and Figure 2 At least one set of circulating air components 20 is provided on the left and right sides of the housing 10 of this utility model. In this embodiment, a set of circulating air components 20 is provided on the left and right sides of the housing 10 respectively. During the installation process, the user can enter the circulating air through the left and right sides of the housing 10, thereby enabling better installation of the fresh air system, avoiding the influence of the installation environment on the fresh air system, and reducing the difficulty of installation.
[0046] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model.
Claims
1. A fresh air system, characterized in that, include: The housing (10) is provided with an air outlet (11), a blower (12) and an air supply duct. The two ends of the air supply duct are respectively connected to the air outlet of the blower (12) and the air outlet (11). A circulating air assembly (20) is provided, and at least two sets of the circulating air assembly (20) are provided. Each set of the circulating air assembly (20) includes a circulating air outlet (21), a circulating air valve (22) and a circulating air duct. The circulating air outlet (21) and the circulating air valve (22) are both installed on the housing (10). The circulating air valve (22) is installed inside the housing (10). The air inlet end of the circulating air valve (22) is connected to the circulating air outlet (21). The two ends of the circulating air duct are respectively connected to the air outlet end of the circulating air valve (22) and the air inlet end of the blower (12). The fresh air assembly (30) includes a fresh air inlet (31), a fresh air valve (32), and a fresh air channel. The fresh air inlet (31) and the fresh air valve (32) are both installed on the housing (10). The fresh air valve (32) is installed inside the housing (10). The air inlet end of the fresh air valve (32) is connected to the fresh air inlet (31). The two ends of the fresh air channel are respectively connected to the air outlet end of the fresh air valve (32) and the air inlet end of the blower (12).
2. The fresh air system according to claim 1, characterized in that, The fresh air assembly (30) also includes a fresh air filter (33), which is detachably installed in the housing (10) and is located between the fresh air valve (32) and the fresh air inlet (31).
3. The fresh air system according to claim 1, characterized in that, The housing (10) is also provided with an exhaust assembly (40), which includes a return air inlet (41), an exhaust air outlet (42), an exhaust valve (43), an exhaust fan (44), and an exhaust duct. The exhaust valve (43) and the exhaust fan (44) can be detachably installed inside the housing (10). The air outlet of the exhaust valve (43) is connected to the exhaust fan (44), the air outlet of the exhaust fan (44) is connected to the exhaust air outlet (42), and the two ends of the exhaust duct are connected to the return air inlet (41) and the air inlet of the exhaust valve (43), respectively.
4. The fresh air system according to claim 3, characterized in that, The exhaust assembly (40) also includes an exhaust sensor (45), which is detachably installed in the housing (10) and located in the exhaust duct.
5. The fresh air system according to claim 3, characterized in that, An adjustment assembly (50) is also provided inside the housing (10). The adjustment assembly (50) includes an evaporator (51) and an air supply filter (52). The evaporator (51) and the air supply filter (52) are detachably installed inside the housing (10). The evaporator (51) and the air supply filter (52) are both located in the air supply duct. The air supply filter (52) is located between the evaporator (51) and the blower (12).
6. The fresh air system according to claim 5, characterized in that, The regulating component (50) also includes a total heat exchanger (53), which is detachably installed inside the housing (10), and the exhaust duct and the fresh air duct are intersected through the total heat exchanger (53).
7. The fresh air system according to claim 3, characterized in that, The housing (10) is also provided with a bypass assembly (60), which includes a bypass valve (61) and a bypass channel. The air inlet of the bypass valve (61) is connected to the fresh air channel, and the two ends of the bypass channel are connected to the air outlet of the bypass valve (61) and the air inlet of the exhaust duct, respectively.
8. The fresh air system according to claim 7, characterized in that, The bypass assembly (60) also includes a bypass sensor (62), which is detachably mounted in the bypass channel.
9. The fresh air system according to claim 8, characterized in that, The housing (10) is also equipped with a controller (70), and the circulating air valve (22), bypass valve (61), fresh air valve (32) and exhaust valve (43) are all electrically connected to the controller (70).
10. The fresh air system according to any one of claims 1-9, characterized in that, At least one set of the circulating air assembly (20) is provided on the left and right sides of the housing (10).