A fresh air system
By introducing movable components, sound-absorbing cotton, and heat exchangers into the fresh air system, the problems of the system's immobility and noise have been solved, improving ease of use and comfort, and enabling the reuse of return air heat.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HEBEI GREEN BUILDING MATERIALS CO LTD
- Filing Date
- 2025-08-04
- Publication Date
- 2026-07-31
AI Technical Summary
Existing fresh air systems cannot be moved according to actual needs and generate noise, affecting user comfort.
Design a fresh air system comprising a fresh air and return air heat exchange chamber and a circulation chamber, and incorporate movable components, sound-absorbing cotton, and a heat exchanger to enable convenient system relocation and noise absorption, and to reuse the heat of fresh air and return air through the heat exchanger.
It enables convenient relocation and noise control of the fresh air system, improves ease of use and comfort, and also realizes the reuse of return air heat.
Smart Images

Figure CN224580390U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of fresh air technology, and in particular relates to a fresh air system. Background Technology
[0002] A fresh air system is an independent air handling system consisting of an air supply system and an exhaust system. It can be divided into two types: ducted fresh air systems and ductless fresh air systems.
[0003] The system works by using specialized equipment to supply fresh air into the sealed room from one side and exhaust it to the outside from the other side, creating a "fresh air flow field" within the room to meet the need for indoor ventilation.
[0004] Most existing fresh air systems are fixed and cannot be moved according to actual usage needs. They also generate considerable noise, affecting comfort during use.
[0005] Therefore, a fresh air system needs to be designed to solve the above problems. Utility Model Content
[0006] The purpose of this invention is to provide a fresh air system to solve the above-mentioned problems and improve the convenience and comfort of using the fresh air system.
[0007] To achieve the above objectives, this utility model provides the following solution: a fresh air system, comprising:
[0008] The outer shell has a partition fixedly connected inside, which divides the interior of the outer shell into a fresh air return air heat exchange chamber and a circulation chamber.
[0009] The fresh air and return air heat exchange chamber is equipped with a fresh air intake component and a return air outlet component. The fresh air intake component is used to input outdoor fresh air into the room, and the return air outlet component is used to input indoor return air into the outside. The fresh air and return air exchange heat in the heat exchanger.
[0010] The circulation chamber is equipped with a circulating air inlet assembly and a circulating air outlet assembly. Indoor air enters the heat exchanger through the circulating air inlet assembly for heat exchange and returns to the room through the circulating air outlet assembly.
[0011] Sound-absorbing cotton is fixedly installed on the inner side wall of the outer casing;
[0012] A base is fixedly installed at the bottom of the outer casing, and a movable component is provided at the bottom end of the base. The movable component is used to control the movement of the base and the outer casing.
[0013] According to this utility model, a fresh air system includes a fresh air intake assembly comprising a fresh air intake chamber and a fresh air outlet chamber. The fresh air intake chamber is connected to the fresh air inlet of the heat exchanger. A fresh air intake filter is provided on the top wall of the fresh air intake chamber. A first filter layer and a second filter layer are arranged sequentially from top to bottom inside the fresh air intake chamber. The fresh air outlet chamber is connected to the fresh air outlet of the heat exchanger. A fresh air outlet section is provided inside the fresh air outlet chamber, and the fresh air outlet section introduces the fresh air from the fresh air outlet chamber into the room.
[0014] According to the present invention, a fresh air system includes a fresh air duct, one end of which is located in the fresh air outlet cavity and is fixedly connected to a fresh air fan, and the other end of which is fixedly embedded in the side wall of the outer shell and has a fresh air outlet filter fixedly connected inside.
[0015] According to this utility model, a fresh air system includes a return air inlet chamber and a return air outlet chamber. The return air inlet chamber is connected to the return air inlet of the heat exchanger. A return air inlet section is provided inside the return air inlet chamber. The return air outlet chamber is connected to the return air outlet of the heat exchanger. A return air outlet filter and a return air fan are provided on the top wall of the return air outlet chamber. The return air fan inputs the return air in the return air outlet chamber to the outside.
[0016] According to the present invention, a fresh air system includes a return air inlet section comprising a return air duct, one end of which is fixedly embedded in the side wall of the outer casing and has a return air inlet filter screen fixedly connected inside, and the other end of which has a return air filter cotton fixedly embedded inside.
[0017] According to the present invention, a fresh air system is provided, wherein the fresh air inlet cavity and the return air outlet cavity are arranged side by side, the fresh air outlet cavity and the return air inlet cavity are arranged side by side, the fresh air inlet cavity is located above the return air inlet cavity, and the return air outlet cavity is located above the fresh air outlet cavity.
[0018] According to the present invention, a fresh air system is provided, wherein the circulating air intake component includes a circulating air intake chamber, the circulating air intake chamber is connected to the air inlet of the heat exchanger, a circulating air intake pipe is provided in the circulating air intake chamber, one end of the circulating air intake pipe is fixedly embedded in the side wall of the outer shell and a circulating air intake filter is fixedly connected inside, and the other end of the circulating air intake pipe is fixedly connected to a circulating air intake filter cotton.
[0019] According to the present invention, a fresh air system includes a circulating air outlet component comprising a circulating air outlet cavity, which is connected to the air outlet of the heat exchanger. A circulating air outlet duct is provided inside the circulating air outlet cavity. One end of the circulating air outlet duct is fixedly embedded in the side wall of the outer shell and a circulating air outlet filter is fixedly connected inside it. A circulating fan is fixedly connected to the other end of the circulating air outlet duct.
[0020] According to the present invention, a fresh air system includes a mobile component comprising a plurality of wheels, which are rotatably disposed in a groove formed at the bottom end of the base, wherein the bottom end of the wheels is lower than the bottom end of the base.
[0021] Compared with the prior art, the present invention has the following advantages and technical effects:
[0022] This invention allows the entire fresh air system to be moved via a movable component located at the bottom of the base, enabling it to be moved to the appropriate indoor space according to actual usage needs. The sound-absorbing cotton on the inner wall of the outer casing absorbs the noise generated during the operation of the fresh air system, preventing noise from spreading indoors and causing noise pollution. The fresh air and return air heat exchange chamber allows for heat exchange between the fresh air and return air, enabling the reuse of heat in the return air. The circulation chamber ensures continuous circulation of indoor air and guarantees good airflow. Attached Figure Description
[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly described below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0024] Figure 1 This is a schematic diagram of the structure of this utility model.
[0025] The components are as follows: 1. Outer shell; 2. Sound-absorbing cotton; 3. Partition; 4. Heat exchanger; 5. Fresh air inlet cavity; 6. Fresh air inlet filter; 7. First filter layer; 8. Second filter layer; 9. Fresh air outlet cavity; 10. Fresh air duct; 11. Fresh air outlet filter; 12. Fresh air fan; 13. Return air inlet cavity; 14. Return air duct; 15. Return air inlet filter; 16. Return air filter cotton; 17. Return air outlet cavity; 18. Return air outlet filter; 19. Return air fan; 20. Heat exchanger; 21. Circulating air inlet cavity; 22. Circulating air inlet duct; 23. Circulating air inlet filter; 24. Circulating air inlet filter cotton; 25. Circulating air outlet cavity; 26. Circulating air outlet duct; 27. Circulating air outlet filter; 28. Circulating fan; 29. Base; 30. Groove; 31. Casters. Detailed Implementation
[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0027] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.
[0028] Reference Figure 1 As shown, this utility model provides a fresh air system, including:
[0029] The outer shell 1 has a partition 3 fixedly connected inside, which divides the interior of the outer shell 1 into a fresh air return air heat exchange chamber and a circulation chamber.
[0030] The fresh air and return air heat exchange chamber is equipped with a fresh air intake component and a return air outlet component. The fresh air intake component is used to introduce outdoor fresh air into the room, and the return air outlet component is used to introduce indoor return air into the outside. The fresh air and return air exchange heat in the heat exchanger 4.
[0031] The circulation chamber is equipped with a circulating air inlet component and a circulating air outlet component. Indoor air enters the heat exchanger 20 through the circulating air inlet component for heat exchange and returns to the room through the circulating air outlet component.
[0032] Sound-absorbing cotton 2 is fixedly installed on the inner side wall of the outer casing 1;
[0033] The base 29 is fixedly installed at the bottom of the outer shell 1. A movable component is provided at the bottom of the base 29, which is used to control the movement of the base 29 and the outer shell 1.
[0034] Furthermore, the fresh air intake assembly includes a fresh air intake cavity 5 and a fresh air outlet cavity 9. The fresh air intake cavity 5 is connected to the fresh air inlet of the heat exchanger 4. A fresh air intake filter 6 is provided on the top wall of the fresh air intake cavity 5. A first filter layer 7 and a second filter layer 8 are arranged sequentially from top to bottom inside the fresh air intake cavity 5. The fresh air outlet cavity 9 is connected to the fresh air outlet of the heat exchanger 4. A fresh air outlet section is provided inside the fresh air outlet cavity 9, which introduces the fresh air in the fresh air outlet cavity 9 into the room.
[0035] Furthermore, the fresh air outlet includes a fresh air duct 10. One end of the fresh air duct 10 located inside the fresh air outlet cavity 9 is fixedly connected to a fresh air fan 12, and the other end of the fresh air duct 10 is fixedly embedded in the side wall of the outer casing 1 and has a fresh air outlet filter 11 fixedly connected inside.
[0036] Furthermore, the return air outlet assembly includes a return air inlet chamber 13 and a return air outlet chamber 17. The return air inlet chamber 13 is connected to the return air inlet of the heat exchanger 4. A return air inlet section is provided inside the return air inlet chamber 13. The return air outlet chamber 17 is connected to the return air outlet of the heat exchanger 4. A return air outlet filter 18 and a return air fan 19 are provided on the top wall of the return air outlet chamber 17. The return air fan 19 inputs the return air in the return air outlet chamber 17 to the outside.
[0037] Furthermore, the return air intake section includes a return air duct 14, one end of which is fixedly embedded in the side wall of the outer casing 1 and a return air intake filter 15 is fixedly connected inside, and the other end of the return air duct 14 is fixedly embedded with a return air filter cotton 16.
[0038] Furthermore, the fresh air inlet cavity 5 and the return air outlet cavity 17 are arranged side by side, and the fresh air outlet cavity 9 and the return air inlet cavity 13 are arranged side by side. The fresh air inlet cavity 5 is located above the return air inlet cavity 13, and the return air outlet cavity 17 is located above the fresh air outlet cavity 9.
[0039] Furthermore, the circulating air intake assembly includes a circulating air intake chamber 21, which is connected to the air inlet of the heat exchanger 20. A circulating air intake duct 22 is provided inside the circulating air intake chamber 21. One end of the circulating air intake duct 22 is fixedly embedded in the side wall of the outer shell 1 and a circulating air intake filter screen 23 is fixedly connected inside it. A circulating air intake filter cotton 24 is fixedly connected inside the other end of the circulating air intake duct 22.
[0040] Furthermore, the circulating air outlet assembly includes a circulating air outlet chamber 25, which is connected to the air outlet of the heat exchanger 20. A circulating air outlet duct 26 is provided inside the circulating air outlet chamber 25. One end of the circulating air outlet duct 26 is fixedly embedded in the side wall of the outer shell 1 and a circulating air outlet filter 27 is fixedly connected inside it. The other end of the circulating air outlet duct 26 is fixedly connected to a circulating fan 28.
[0041] Furthermore, the moving component includes a plurality of wheels 31, which are rotatably disposed in a groove 30 opened at the bottom end of the base 29, and the bottom end of the wheels 31 is lower than the bottom end of the base 29.
[0042] The working process of this utility model is as follows:
[0043] When exchanging fresh air and return air in the room where the system is located, the fresh air fan 12 and the return air fan 19 work simultaneously. Under the action of the fresh air fan 12, outdoor air enters the fresh air intake chamber 5 through the fresh air intake filter 6, then enters the fresh air duct 10 and finally enters the room. The outdoor air undergoes preliminary filtration when passing through the fresh air intake filter 6, and after entering the fresh air intake chamber 5, it undergoes further filtration by passing through the first filter layer 7 and the second filter layer 8. Under the action of the return air fan 19, the indoor air... The fresh air enters the return air inlet chamber 13 through the return air duct 14 in the form of return air, then enters the return air outlet chamber 17 through the heat exchanger 4, and is finally discharged to the outside. After the indoor air enters the return air duct 14, it is filtered by the return air inlet filter 15 and the return air filter cotton 16 in sequence. When the fresh air and the return air enter the heat exchanger 4 at the same time, heat exchange occurs, and the energy carried by the return air is recovered and utilized. After the heat exchange, the return air enters the return air outlet chamber 17 and is discharged to the outside under the action of the return air fan 19.
[0044] When the indoor air is circulated by the system, under the action of the circulating fan 28, the indoor air enters the circulating air inlet chamber 21 through the circulating air inlet duct 22, then enters the heat exchanger 20 for heat exchange, and after heat exchange, enters the circulating air outlet chamber 25 and finally returns to the room through the circulating air outlet duct 26.
[0045] The walking wheels 31 have a built-in braking function. After moving the fresh air system to the designated position, the walking wheels 31 can be locked by using the braking function.
[0046] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0047] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements to the technical solutions of the present utility model made by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope of the present utility model.
Claims
1. A fresh air system, characterized in that include: The outer shell (1) has a partition (3) fixedly connected inside, which divides the interior of the outer shell (1) into a fresh air return air heat exchange chamber and a circulation chamber; The fresh air and return air heat exchange chamber is provided with a fresh air intake component and a return air outlet component. The fresh air intake component is used to input outdoor fresh air into the room, and the return air outlet component is used to input indoor return air into the outside. The fresh air and return air exchange heat in the heat exchanger (4). The circulation chamber is equipped with a circulation air inlet assembly and a circulation air outlet assembly. Indoor air enters the heat exchanger (20) through the circulation air inlet assembly for heat exchange and returns to the room through the circulation air outlet assembly. Sound-absorbing cotton (2) is fixedly installed on the inner side wall of the outer shell (1); A base (29) is fixedly disposed at the bottom of the outer shell (1). A movable component is provided at the bottom end of the base (29), and the movable component is used to control the movement of the base (29) and the outer shell (1).
2. The fresh air system of claim 1, wherein, The fresh air intake assembly includes a fresh air intake cavity (5) and a fresh air outlet cavity (9). The fresh air intake cavity (5) is connected to the fresh air inlet of the heat exchanger (4). A fresh air intake filter (6) is provided on the top wall of the fresh air intake cavity (5). A first filter layer (7) and a second filter layer (8) are arranged sequentially from top to bottom inside the fresh air intake cavity (5). The fresh air outlet cavity (9) is connected to the fresh air outlet of the heat exchanger (4). A fresh air outlet section is provided inside the fresh air outlet cavity (9). The fresh air outlet section inputs the fresh air in the fresh air outlet cavity (9) into the room.
3. The fresh air system of claim 2, wherein, The fresh air outlet includes a fresh air duct (10). One end of the fresh air duct (10) located in the fresh air outlet cavity (9) is fixedly connected to a fresh air fan (12). The other end of the fresh air duct (10) is fixedly embedded in the side wall of the outer shell (1) and is fixedly connected to a fresh air outlet filter (11).
4. The fresh air system of claim 2, wherein, The return air outlet assembly includes a return air inlet chamber (13) and a return air outlet chamber (17). The return air inlet chamber (13) is connected to the return air inlet of the heat exchanger (4). A return air inlet section is provided inside the return air inlet chamber (13). The return air outlet chamber (17) is connected to the return air outlet of the heat exchanger (4). A return air outlet filter (18) and a return air fan (19) are provided on the top wall of the return air outlet chamber (17). The return air fan (19) inputs the return air in the return air outlet chamber (17) to the outside.
5. The fresh air system of claim 4, wherein, The return air intake section includes a return air duct (14), one end of which is fixedly embedded in the side wall of the outer shell (1) and a return air intake filter (15) is fixedly connected inside. The other end of the return air duct (14) is fixedly embedded with a return air filter cotton (16).
6. The fresh air system of claim 4, wherein, The fresh air inlet cavity (5) and the return air outlet cavity (17) are arranged side by side, the fresh air outlet cavity (9) and the return air inlet cavity (13) are arranged side by side, the fresh air inlet cavity (5) is located above the return air inlet cavity (13), and the return air outlet cavity (17) is located above the fresh air outlet cavity (9).
7. The fresh air system of claim 1, wherein, The circulating air intake assembly includes a circulating air intake chamber (21), which is connected to the air inlet of the heat exchanger (20). A circulating air intake pipe (22) is provided inside the circulating air intake chamber (21). One end of the circulating air intake pipe (22) is fixedly embedded in the side wall of the outer shell (1) and a circulating air intake filter (23) is fixedly connected inside. A circulating air intake filter cotton (24) is fixedly connected inside the other end of the circulating air intake pipe (22).
8. The fresh air system of claim 1, wherein, The circulating air outlet assembly includes a circulating air outlet chamber (25), which is connected to the air outlet of the heat exchanger (20). A circulating air outlet duct (26) is provided inside the circulating air outlet chamber (25). One end of the circulating air outlet duct (26) is fixedly embedded in the side wall of the outer shell (1) and a circulating air outlet filter (27) is fixedly connected inside. The other end of the circulating air outlet duct (26) is fixedly connected to a circulating fan (28).
9. The fresh air system of claim 1, wherein, The moving component includes a plurality of wheels (31), which are rotatably disposed in a groove (30) opened at the bottom end of the base (29), and the bottom end of the wheels (31) is lower than the bottom end of the base (29).