Synchronous air intake and exhaust architecture and fresh air device based on single-pipe internal compartment

Abstract

This utility model discloses a synchronous air intake and exhaust architecture and a fresh air device based on a single-pipe internal cavity, relating to the field of air purification equipment technology. It includes: an outer pipe body; an inner pipe body embedded inside the outer pipe body, with an independent exhaust cavity formed inside the inner pipe body, and an independent air intake cavity formed inside the outer pipe body corresponding to the outside of the inner pipe body, the exhaust cavity and the air intake cavity being arranged alternately inside the outer pipe body; and a wind-driven component with two wind output ends, the two wind output ends of the wind-driven component being arranged one-to-one with the output airflow direction in the exhaust cavity and the air intake cavity, respectively. This solves the technical problems of poor installation adaptability and low ventilation efficiency of existing fresh air units.

Description

Technical Field

[0001] This utility model relates to the field of air purification equipment technology, and more specifically, to a synchronous air intake and exhaust architecture and fresh air device based on a single-pipe internal cavity. Background Technology

[0002] Currently, in modern building environments, people have increasingly higher requirements for indoor air quality. Ventilation fans, exhaust fans, and fresh air systems, as key equipment for improving indoor air quality, are widely used in homes, offices, and other places. Especially in enclosed spaces, fresh air systems are needed to achieve the exchange of indoor and outdoor air.

[0003] In the existing technology, there are multiple technical approaches for fresh air systems, but there are still obvious drawbacks, as follows:

[0004] Firstly, traditional dual-pipe fixed total heat exchanger models use two independent pipes, requiring two holes to be drilled in the wall, which occupies relatively large wall space and has poor installation adaptability. In particular, it is difficult to install in small apartments because there is no place to drill holes or it may damage the decoration. In addition, the main unit is thick and cannot be concealed and integrated with the interior decoration.

[0005] Secondly, although the single-pipe bidirectional flow heat exchanger model only requires single-hole installation, it achieves alternating air intake and exhaust through the forward and reverse rotation of the motor, which cannot achieve synchronous air exchange. Furthermore, the alternating operation will cause air exchange interruption, resulting in low air exchange efficiency and easy formation of air pressure imbalance in the room.

[0006] The aforementioned deficiencies in the existing technology make it difficult for total heat exchange fresh air systems to meet the increasingly diverse functional needs of users in terms of installation adaptability and ventilation efficiency. Utility Model Content

[0007] To address this issue, this invention provides a synchronous air intake and exhaust architecture and a fresh air device based on a single-pipe internal cavity, in order to solve the technical problems of poor installation adaptability and low air exchange efficiency in existing fresh air units.

[0008] To achieve the above objectives, this utility model provides the following technical solution:

[0009] A duct-mounted, compartmentalized fresh air delivery architecture includes:

[0010] Outer tube body;

[0011] An inner tube is embedded inside the outer tube, and an independent exhaust cavity is formed inside the inner tube. An independent air inlet cavity is formed inside the outer tube corresponding to the outside of the inner tube. The exhaust cavity and the air inlet cavity are arranged alternately inside the outer tube.

[0012] The wind-driven assembly has two wind output ends, and the two wind output ends of the wind-driven assembly are respectively arranged in the exhaust cavity and the inlet cavity with the same output wind direction.

[0013] Based on the above technical solution, the present invention is further described as follows:

[0014] As a further embodiment of this utility model,

[0015] The outer tube and the inner tube are fixedly connected to a filter mounting cavity seat on the indoor side.

[0016] The filter mounting cavity is divided into sections, with one section connected to a first exhaust port and the other section connected to a second air inlet. The first exhaust port is connected to the air inlet cavity, and the second air inlet is connected to the exhaust cavity.

[0017] As a further aspect of this utility model, it also includes:

[0018] An air intake filter assembly includes a primary filter and an enhancement filter, wherein the primary filter and the enhancement filter are sequentially fixedly connected to the partition cavity that is connected to the air intake cavity of the filter mounting cavity.

[0019] An exhaust filtration assembly includes a primary filter screen, which is magnetically fixed to the inner cavity of the partition connecting the filter mounting cavity seat and the exhaust vent cavity.

[0020] As a further embodiment of this utility model, the wind-driven assembly includes:

[0021] The air intake motor has its base fixedly connected to the inner wall of the air intake cavity, and the air intake fan blades are driven and assembled at the kinetic energy output end of the air intake motor.

[0022] The exhaust fan motor has its base fixedly connected to the inner wall of the exhaust cavity, and the kinetic energy output end of the exhaust fan motor is equipped with exhaust fan blades.

[0023] As a further embodiment of this utility model,

[0024] The first exhaust vent is set facing upwards, and the second air inlet is set facing downwards, with the first exhaust vent and the second air inlet being set at 180° opposite to each other.

[0025] As a further embodiment of this utility model,

[0026] The vertical distance between the second air inlet and the first air outlet is not less than 50cm.

[0027] As a further embodiment of this utility model,

[0028] The air inlet cavity is connected to the outdoor side with a first air inlet;

[0029] The exhaust cavity is connected to the outdoor side and has a first exhaust port.

[0030] A fresh air device includes the aforementioned synchronous air intake and exhaust architecture based on a single-pipe internal chamber.

[0031] This utility model has the following beneficial effects:

[0032] This device solves the problems of limited installation space and synchronous air exchange through the single-channel design and chamber layout of the main body structure of the tube-in-tube structure, thereby improving installation adaptability and air exchange efficiency. At the same time, it can reduce wind resistance and energy consumption while ensuring purification effect by utilizing a graded filtration configuration, thus improving the overall functionality and practicality of the device. Attached Figure Description

[0033] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. The structures, proportions, sizes, etc., drawn in this specification are only used to complement the content disclosed in the specification, so that those skilled in the art can understand and read them. Any modifications to the structure, changes in the proportional relationships, or adjustments to the size, without affecting the effects and purposes that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0034] Figure 1 The schematic diagram of the overall internal structure of the synchronous air intake and exhaust architecture based on a single-pipe internal cavity provided in this embodiment of the present invention corresponds to one side.

[0035] Figure 2 The schematic diagram of the overall internal structure of the synchronous air intake and exhaust architecture based on a single-pipe internal cavity provided in the embodiment of this utility model corresponds to the other side.

[0036] The attached diagram lists the components represented by each number as follows:

[0037] 1. Outer pipe body; 11. Air inlet cavity; 12. First air inlet; 13. First air outlet;

[0038] Inner tube 2, exhaust cavity 21, second air inlet 22, second exhaust outlet 23;

[0039] 3. Inlet fan motor; 31. Inlet fan blades;

[0040] 4 exhaust fan motors, 41 exhaust fan blades;

[0041] Filter mounting chamber seat 5;

[0042] High-efficiency filter 6, primary filter 61, and high-efficiency filter 62. Detailed Implementation

[0043] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0044] The terms "upper," "lower," "left," "right," and "middle" used in this specification are merely for clarity of description and are not intended to limit the scope of implementation of this utility model. Any changes or adjustments to their relative relationships, without substantially altering the technical content, shall also be considered within the scope of implementation of this utility model.

[0045] like Figures 1 to 2 As shown, this utility model embodiment provides a synchronous air intake and exhaust architecture and fresh air device based on a single-pipe internal chamber design. It includes an outer duct body 1, an inner duct body 2, an intake motor 3, an exhaust motor 4, a multi-stage filter 6, and an electronic control module 7. The design effectively achieves synchronous air intake and exhaust based on a single channel through the partitioned chamber design of the outer and inner duct bodies 1. Simultaneously, it utilizes the multi-stage filter 6 to achieve graded filtration, improving the overall device's heat utilization rate, purification level, and functional practicality. The specific settings are as follows:

[0046] Please refer to Figure 1 and Figure 2 The outer tube 1 can be made of, but is not limited to, PP material. It can be fixed to the wall with expansion bolts and supports various installation methods such as ceiling mounting and wall hanging. The overall installation process is simple, time-saving, and low-cost, with minimal damage to the building structure and effective reduction of wall space occupation, making it suitable for various scenarios. The inner tube 2 can also be made of, but is not limited to, PP material. The inner tube 2 is embedded inside the outer tube 1 to form an independent exhaust cavity 21 inside the inner tube 2. At the same time, the outer tube 1 forms an independent air inlet cavity 11 corresponding to the outer space of the inner tube 2. The air inlet cavity 11 and the exhaust cavity 21 are completely sealed and isolated to avoid cross-contamination of airflow. This achieves synchronous air intake and exhaust under single-hole installation, effectively reducing space occupation and ensuring ventilation efficiency and cleanliness through independent airflow paths.

[0047] Specifically, the outer tube 1 and the inner tube 2 are fixedly connected to a filter mounting cavity 5 on one side of the room. The filter mounting cavity 5 has a partitioned internal cavity, and one partition of the filter mounting cavity 5 is connected to a first exhaust port 13. The other partition of the filter mounting cavity 5 is connected to a second air inlet 22. The first exhaust port 13 is connected to the air inlet cavity 11, and the second air inlet 22 is connected to the exhaust cavity 21. The first exhaust port 13 and the second air inlet 22 are arranged in opposite directions at 180°. The distance between the first exhaust port 13 and the second air inlet 22 is not less than 50cm to reduce the crossflow of indoor air intake and exhaust.

[0048] More specifically, the air inlet cavity 11 is connected to the outdoor side with a first air inlet 12, and the air outlet cavity 21 is connected to the outdoor side with a first air outlet 13; the inner wall of the air inlet cavity 11 is provided with a smooth surface with a roughness Ra≤0.8μm to reduce wind resistance and improve air intake efficiency; the first air outlet 13 is arranged facing upwards, and the air inlet cavity 11 is connected to the first air outlet 13 with a 30° guide grille to allow fresh air to diffuse upwards; the inner wall of the air outlet cavity 21 is provided with at least three axial guide ribs at intervals, and the second air inlet 22 of the air outlet cavity 21 is arranged facing downwards, with a vertical distance of not less than 50cm between the second air inlet 22 and the first air outlet 13 to further reduce crossflow between the air inlet and outlet, and improve the smoothness of air intake and exhaust.

[0049] The filter mounting cavity 5 has a built-in multi-stage filter 6 corresponding to its cavity section. The multi-stage filter 6 includes a pre-filter 61 and a booster filter 62. The pre-filter 61 is G4 grade, made of nylon mesh and non-woven fabric composite material, with an overall thickness of 5mm. It can intercept large particles such as dust, hair, and pollen larger than 5μm and can be repeatedly washed, extending the service life of the subsequent booster filter 62. The booster filter 62 is HEPA H13 grade, with a filtration efficiency of 99.97% for 0.3μm particles, effectively... It removes fine pollutants such as PM2.5, bacterial spores, and viral carriers. The filter mounting cavity 5 is connected to the inner cavity of the air inlet cavity 11 and magnetically fixed to the pre-filter 61 and the enhancement filter 62. The filter mounting cavity 5 is also connected to the inner cavity of the exhaust cavity 21 and magnetically fixed to the pre-filter 61. A Shore 40° sealing sponge is provided between the filter and the inner wall of the inner cavity of the filter mounting cavity 5 to prevent air leakage, so as to form a graded filtration to ensure the purification effect and reduce energy consumption in conjunction with the low resistance design.

[0050] In one optional implementation, the primary filter 6 adopts a modular pull-out structure. After opening the panel of the primary filter 6, the primary filter 61 and the enhancement filter 62 can be directly pulled out without disassembling the whole machine, reducing the operation steps by 60% and solving the problem of complex maintenance of traditional models.

[0051] In an optional implementation, the outer tube 1 and the inner tube 2 may also be made of PPH material, which is resistant to temperatures from -20℃ to 110℃ and is suitable for high-temperature areas; or UPVC material, which has excellent chemical resistance and is suitable for corrosive environments. Both meet the requirements of heat distortion temperature ≥80℃ and tensile strength ≥20MPa, in order to further expand the applicable environment range of the equipment and improve the overall functional adaptability and practicality.

[0052] The base of the intake motor 3 is fixedly connected to the inner wall of the intake cavity 11, and the kinetic energy output end of the intake motor 3 is equipped with an intake fan blade 31. The base of the exhaust motor 4 is fixedly connected to the inner wall of the exhaust cavity 21, and the kinetic energy output end of the exhaust motor 4 is equipped with an exhaust fan blade 41. This is to further effectively and controllably improve the operating efficiency of intake and exhaust through the drive of the motor fan blades. At the same time, it can switch between full-open mode and single exhaust or single intake mode, which enhances the flexibility of application scenarios.

[0053] Specifically, both the intake motor 3 and the exhaust motor 4 are permanent magnet DC inverter type. The overall operating power varies depending on the location and environment. Their operating noise also varies. Household motors typically have a power range of 5W-15W and an operating noise level of 30dB-50dB, offering superior noise control to meet the needs of households for low noise and low energy consumption. The coordinated operation of the two motors effectively ensures overall ventilation efficiency. Different motors with varying power are adapted to different scenarios to ensure suitability for various user needs.

[0054] This embodiment solves the installation compatibility problem through the innovative design of the pipe-in-pipe main structure, achieving synchronous and efficient air exchange; the staged filtration reduces wind resistance and energy consumption while ensuring purification effect and is easy to maintain; the dual-motor power collaborative architecture ensures stable indoor air pressure and ensures efficient operation of the equipment.

[0055] Although the present invention has been described in detail above with general descriptions and specific embodiments, some modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, all such modifications or improvements made without departing from the spirit of the present invention fall within the scope of protection claimed by the present invention.

Claims

1. A synchronous air intake and exhaust architecture based on a single-pipe internal cavity, characterized in that, include: Outer tube body; An inner tube is embedded inside the outer tube, and an independent exhaust cavity is formed inside the inner tube. An independent air inlet cavity is formed inside the outer tube corresponding to the outside of the inner tube. The exhaust cavity and the air inlet cavity are arranged alternately inside the outer tube. The wind-driven assembly has two wind output ends, and the two wind output ends of the wind-driven assembly are respectively arranged in the exhaust cavity and the inlet cavity with the same output wind direction.

2. The synchronous air intake and exhaust architecture based on a single-pipe internal cavity as described in claim 1, characterized in that, The outer tube and the inner tube are fixedly connected to a filter mounting cavity seat on the indoor side. The filter mounting cavity is divided into sections, with one section connected to a first exhaust port and the other section connected to a second air inlet. The first exhaust port is connected to the air inlet cavity, and the second air inlet is connected to the exhaust cavity.

3. The synchronous air intake and exhaust architecture based on a single-pipe internal cavity as described in claim 2, characterized in that, Also includes: An air intake filter assembly includes a primary filter and an enhancement filter, wherein the primary filter and the enhancement filter are sequentially fixedly connected to the partition cavity that is connected to the air intake cavity of the filter mounting cavity. An exhaust filtration assembly includes a primary filter screen, which is magnetically fixed to the inner cavity of the partition connecting the filter mounting cavity seat and the exhaust vent cavity.

4. The synchronous air intake and exhaust architecture based on single-pipe internal compartments as described in claim 1, characterized in that, The wind-driven component includes: The air intake motor has its base fixedly connected to the inner wall of the air intake cavity, and the air intake fan blades are driven and assembled at the kinetic energy output end of the air intake motor. The exhaust fan motor has its base fixedly connected to the inner wall of the exhaust cavity, and the kinetic energy output end of the exhaust fan motor is equipped with exhaust fan blades.

5. The synchronous air intake and exhaust architecture based on a single-pipe internal cavity as described in claim 2, characterized in that, The first exhaust vent is positioned upwards, and the second air inlet is positioned downwards, with the first exhaust vent and the second air inlet being 180° opposite each other.

6. The synchronous air intake and exhaust architecture based on a single-pipe internal cavity as described in claim 5, characterized in that, The vertical distance between the first exhaust vent and the second air inlet is not less than 50cm.

7. The synchronous air intake and exhaust architecture based on a single-pipe internal cavity as described in claim 2, characterized in that, The air inlet cavity is connected to the outdoor side with a first air inlet; The exhaust cavity is connected to the outdoor side and has a first exhaust port.

8. A fresh air device, characterized in that, Including the synchronous air intake and exhaust architecture based on a single-pipe internal compartment as described in any one of claims 1-7.

Images