A type of household air conditioner fresh air unit

CN224284789UActive Publication Date: 2026-05-26JIANGYIN FUJI MASCH EQUIP CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGYIN FUJI MASCH EQUIP CO LTD
Filing Date
2025-06-13
Publication Date
2026-05-26

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Abstract

This utility model discloses a household air conditioner fresh air unit, including a device body containing an outer shell. The outer shell contains, in sequence, a coarse filter, a pre-filter, an activated carbon filter, a HEPA filter, and a total heat exchange core. An air inlet pipe is connected to the side of the outer shell, and a maintenance plate is located at the rear end. The maintenance plate contains a mounting groove, a first sound-absorbing cotton, and a second sound-absorbing cotton. The first and second sound-absorbing cottons have a U-shaped clip at their front end and a second U-shaped clip at their rear end. Screw holes are formed in the first and second U-shaped clips, and bolts are screwed into these holes. A mounting base is connected to the bottom of the outer shell. This device can absorb the mechanical noise generated during fan operation and the noise generated by airflow within the duct, improving user comfort and preventing noise interference with daily life and sleep, allowing people to relax and enjoy fresh air more comfortably indoors.
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Description

Technical Field

[0001] This utility model belongs to the field of purification equipment technology, specifically relating to a fresh air unit for household air conditioners. Background Technology

[0002] A household air conditioning fresh air system is a device that introduces fresh outdoor air into the room and simultaneously filters, purifies, and regulates the temperature and humidity of the air to improve indoor air quality and comfort.

[0003] The utility model patent with publication number CN 209991604 U in the prior art proposes an air conditioner fresh air unit. The device absorbs water droplets by setting a sponge board at the bottom of the unit and blows part of the airflow from the air supply pipe to the sponge board through the air guide plate. By increasing the airflow, the sponge board is dried in time, avoiding the sponge board from getting wet and moldy.

[0004] However, in actual use, it is inconvenient to reduce the noise generated by the device. The device will generate a certain amount of noise when it is running, especially in a quiet environment at night, which may affect sleep quality and reduce the comfort of the device. Therefore, we need to upgrade and modify it based on the existing technology. Utility Model Content

[0005] The purpose of this utility model is to provide a fresh air system for household air conditioners to solve the problems mentioned in the background art.

[0006] To solve the above problems, the following technical solutions are provided:

[0007] Design a household air conditioner fresh air unit, including a device body, the device body containing an outer shell, the outer shell containing a coarse filter, a pre-filter, an activated carbon filter, a HEPA filter and a total heat exchange core arranged sequentially, the outer shell having an air inlet pipe connected to its side and a maintenance plate at its rear end, the maintenance plate containing a mounting groove, a first sound-absorbing cotton and a second sound-absorbing cotton, the first and second sound-absorbing cottons having a U-shaped clamp at their front end and a second U-shaped clamp at their rear end, the first and second U-shaped clamps having screw holes, the screw holes for bolts to be screwed in, a mounting base connected to the bottom of the outer shell, an extension rod and a baffle plate below the mounting base, a rotating shaft inside the baffle plate, one end of the rotating shaft connected to a worm gear, the side of the worm gear meshing with a worm, and a motor connected to the worm.

[0008] Furthermore, the inspection plate is provided with positioning buckles, and four sets of positioning buckles are symmetrically arranged on the top and bottom. Both the positioning buckles and the outer shell are provided with mounting holes, and multiple sets of mounting holes are provided. Mounting posts are screwed into the mounting holes.

[0009] Furthermore, mounting buckles are fixedly provided on the outer walls of both the left and right ends of the outer casing, and multiple sets of mounting buckles are provided.

[0010] Furthermore, the inspection plate has an installation groove, in which a strong magnetic plate is fixedly installed. Both the first U-shaped clamp and the second U-shaped clamp are made of metal, and the strong magnetic plate is magnetically connected to the second U-shaped clamp.

[0011] Furthermore, an air outlet is provided inside the outer casing, and the air outlet is located above the wind deflector, which is an angled straight plate.

[0012] Furthermore, the extension rod and the wind deflector are connected by a rotating shaft, and the extension rod and the wind deflector are rotatably connected.

[0013] Furthermore, a fixing frame is provided on the worm gear and the motor, and one end of the fixing frame is fixedly connected to the extension rod.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] 1. This utility model, by setting up an installation groove, a strong magnetic plate, sound-absorbing cotton I, sound-absorbing cotton II, U-shaped clip I, U-shaped clip II, screw holes and bolts, can absorb the mechanical noise generated by the operation of the fan and the noise generated by the airflow in the duct, improve the user's comfort when using the air conditioner fresh air unit, avoid noise interference with life and sleep, and allow people to enjoy fresh air more relaxed and comfortably indoors.

[0016] 2. This utility model, by setting up a mounting base, extension rod, wind deflector, rotating shaft, worm gear, worm, motor and fixing frame, can adjust the angle of the wind deflector of the device, so that fresh air is blown out in different directions and angles, better meeting the ventilation needs of different areas of the room, optimizing airflow distribution, improving the flexibility of the device, and avoiding the wind blowing directly on the human body, thus avoiding physical discomfort.

[0017] Specific embodiments of the present invention are disclosed in detail with reference to the following description and accompanying drawings, indicating how the principles of the present invention can be employed. It should be understood that the embodiments of the present invention are not limited in scope. Within the spirit and scope of the appended claims, the embodiments of the present invention include many changes, modifications, and equivalents. Attached Figure Description

[0018] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0019] Figure 1This is a perspective view of the overall structure of a household air conditioner fresh air unit according to the present invention;

[0020] Figure 2 The internal structure diagram of a household air conditioner fresh air unit according to this utility model is shown.

[0021] Figure 3 This is an exploded view of the noise reduction structure of a household air conditioner fresh air unit according to this utility model;

[0022] Figure 4 This is a partial view of a noise reduction structure for a household air conditioner fresh air unit according to the present invention;

[0023] Figure 5 This is an exploded view of the adjustment structure of a household air conditioner fresh air unit according to the present invention.

[0024] In the diagram: 1. Device body; 2. Outer shell; 3. Air inlet pipe; 4. Mounting clip; 5. Inspection plate; 6. Positioning clip; 7. Mounting hole; 8. Mounting column; 9. Coarse filter screen;

[0025] 10. Pre-filter; 11. Activated carbon filter; 12. HEPA filter; 13. Heat exchange core; 14. Mounting slot; 15. Strong magnetic plate; 16. Sound-absorbing cotton 1; 17. Sound-absorbing cotton 2; 18. U-shaped clip 1; 19. U-shaped clip 2; 20. Screw hole; 21. Bolt; 22. Air outlet; 23. Mounting base; 24. Extension rod; 25. Baffle plate; 26. Rotating shaft; 27. Worm gear; 28. Worm; 29. ​​Motor; 30. Fixing bracket. Detailed Implementation

[0026] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0027] like Figure 1As shown in Figure 5, this embodiment provides a household air conditioner fresh air unit, including a device body 1. The device body 1 contains an outer shell 2. The outer shell 2 contains, in sequence, a coarse filter 9, a pre-filter 10, an activated carbon filter 11, a HEPA filter 12, and a total heat exchange core 13. An air inlet pipe 3 is connected to the side of the outer shell 2, and a maintenance plate 5 is provided at the rear end of the outer shell 2. The maintenance plate 5 contains a mounting groove 14, a sound-absorbing cotton 16, and a sound-absorbing cotton 17, which provides sound absorption. The front end of the cotton 16 and the silent cotton 217 is provided with a U-shaped clamp 18 and the rear end is provided with a U-shaped clamp 29. The U-shaped clamp 18 and the U-shaped clamp 29 are provided with screw holes 20, and bolts 21 are screwed into the screw holes 20. The lower part of the outer shell 2 is connected to the mounting base 23. The lower part of the mounting base 23 is provided with an extension rod 24 and a wind baffle 25. The wind baffle 25 is provided with a rotating shaft 26. One end of the rotating shaft 26 is connected to a worm gear 27. The worm gear 27 meshes with a worm 28 on its side. A motor 29 is connected to the worm 28.

[0028] Preferably, the inspection plate 5 is provided with positioning buckles 6, and four sets of positioning buckles 6 are symmetrically arranged vertically. Both the positioning buckles 6 and the outer shell 2 are provided with mounting holes 7, and multiple sets of mounting holes 7 are provided. Mounting posts 8 are screwed into the mounting holes 7. By setting the positioning buckles 6, the position of the inspection plate 5 can be limited. By setting the mounting holes 7 and mounting posts 8, the devices can be connected and fixed, which increases the stability of the device and ensures the safety of the device during use. Mounting buckles 4 are fixedly provided on the outer walls of both the left and right ends of the outer shell 2. Multiple sets of mounting buckles 4 are provided. By setting the mounting buckles 4, it is convenient for users to install and fix the device, which increases the practicality and convenience of the device.

[0029] Preferably, the inspection plate 5 has an installation groove 14, and a strong magnetic plate 15 is fixedly installed in the installation groove 14. Both the U-shaped clamp 18 and the U-shaped clamp 29 are made of metal. The strong magnetic plate 15 and the U-shaped clamp 29 are magnetically connected. By setting the strong magnetic plate 15, the devices can be connected and fixed, which is convenient for users to disassemble later and ensures the safety of the device during use. The outer shell 2 has an air outlet 22, which is located above the wind baffle 25. The wind baffle 25 is a straight plate with an angle. By setting the air outlet 22, the air generated by the device can be dispersed.

[0030] Preferably, the extension rod 24 and the wind deflector 25 are connected by a rotating shaft 26. The extension rod 24 and the wind deflector 25 are rotatably connected. By setting the rotating shaft 26, the devices can be connected, which facilitates the user's control and use of the devices. A fixing frame 30 is set on the worm gear 28 and the motor 29. One end of the fixing frame 30 is fixedly connected to the extension rod 24. By setting the fixing frame 30, the stability of the motor 29 and the worm gear 28 is increased, ensuring their safety during use.

[0031] The working principle and process of this utility model are as follows: In use, outdoor air is drawn in through the air inlet duct 3 and passes through a series of filtration devices, such as a coarse filter 9, a pre-filter 10, an activated carbon filter 11, and a HEPA filter 12, to remove dust, pollen, bacteria, and other impurities from the air. The air then undergoes heat exchange treatment through the total heat exchange core 13. While introducing fresh air, the heat or cold energy of the indoor exhaust air is transferred to the outdoor air, achieving energy recovery to reduce indoor temperature fluctuations and lower the energy consumption of the air conditioner. The treated fresh air is introduced into the room, while the stale air is expelled, creating air circulation and maintaining freshness and cleanliness. When noise reduction is required during use, the sound-absorbing cotton 16 and sound-absorbing cotton 27 are stacked in sequence. Then, U-shaped clip 18 is placed on sound-absorbing cotton 27, and then U-shaped clip 29 is placed on sound-absorbing cotton 16. The screw holes 20 of U-shaped clip 18 and U-shaped clip 29 are aligned. After alignment, the bolts 21 are screwed into the screw holes 20. Finally, the fixed device is connected to the maintenance equipment. The strong magnetic plate 15 in the mounting slot 14 of plate 5 is magnetically attracted, thereby realizing the connection between the devices. Then, the inspection plate 5 is installed on one end of the outer shell 2, and the positioning buckle 6 is fastened on the outer shell 2 and the inspection plate 5. Finally, it is fixed with the mounting column 8. It can absorb the mechanical noise generated by the fan during operation and the noise generated by the airflow in the duct, improve the user's comfort when using the air conditioner fresh air unit, avoid noise interference with life and sleep, and allow people to enjoy fresh air more relaxed and comfortably indoors. When it is necessary to adjust the angle of the baffle plate 25, the control... When the motor 29 is in operation, it drives the worm gear 28 to rotate. When the worm gear 28 rotates, it drives the worm wheel 27 that meshes with it to rotate. When the worm wheel 27 rotates, it drives the rotating shaft 26 to rotate. When the rotating shaft 26 rotates, it drives the wind deflector 25 that is fixedly connected to it to rotate until the wind deflector 25 rotates to a suitable angle. This allows the angle of the wind deflector 25 to be adjusted so that fresh air is blown out in different directions and angles, better meeting the ventilation needs of different areas indoors, optimizing airflow distribution, improving the flexibility of the device, and avoiding direct airflow onto the human body, which could cause discomfort.

[0032] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, 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. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0033] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0034] The present invention has been described above with reference to specific embodiments. However, those skilled in the art should understand that these descriptions are exemplary and not intended to limit the scope of protection of the present invention. Those skilled in the art can make various modifications and variations to the present invention based on its spirit and principles, and these modifications and variations are also within the scope of the present invention.

Claims

1. A new air machine for a household air conditioner, characterized by, The device includes a main body (1), which contains an outer shell (2). The outer shell (2) contains a coarse filter (9), a pre-filter (10), an activated carbon filter (11), a HEPA filter (12), and a total heat exchange core (13). The outer shell (2) is connected to an air inlet pipe (3) on its side and has a maintenance plate (5) at its rear end. The maintenance plate (5) contains an installation groove (14), a sound-absorbing cotton I (16), and a sound-absorbing cotton II (17). The front ends of the sound-absorbing cotton I (16) and the sound-absorbing cotton II (17) are U-shaped. A clamp (18) is provided at the rear end and a U-shaped clamp (19) is provided at the rear end. A screw hole (20) is provided in the U-shaped clamp (18) and the U-shaped clamp (19). A bolt (21) is screwed into the screw hole (20). A mounting base (23) is connected to the lower part of the outer shell (2). An extension rod (24) and a wind baffle (25) are provided below the mounting base (23). A rotating shaft (26) is provided inside the wind baffle (25). One end of the rotating shaft (26) is connected to a worm gear (27). The worm gear (27) meshes with a worm (28) on its side. A motor (29) is connected to the worm (28).

2. A household air conditioner fresh air unit according to claim 1, characterized in that, The inspection plate (5) is provided with a positioning buckle (6), and four sets of positioning buckles (6) are symmetrically arranged on the top and bottom. The positioning buckle (6) and the outer shell (2) are provided with mounting holes (7), and multiple sets of mounting holes (7) are provided. Mounting posts (8) are screwed into the mounting holes (7).

3. A household air conditioner fresh air unit according to claim 2, characterized in that, The outer walls of the outer shell (2) at both ends are fixedly provided with mounting buckles (4), and there are multiple sets of mounting buckles (4).

4. A household air conditioner fresh air unit according to claim 1, characterized in that, The inspection plate (5) has an installation groove (14) and a strong magnetic plate (15) is fixedly installed in the installation groove (14). The first U-shaped clamp (18) and the second U-shaped clamp (19) are both made of metal. The strong magnetic plate (15) and the second U-shaped clamp (19) are magnetically connected.

5. A household air conditioner fresh air unit according to claim 1, characterized in that, An air outlet (22) is provided inside the outer shell (2). The air outlet (22) is located above the wind baffle (25). The wind baffle (25) is a straight plate with an angle.

6. A household air conditioner fresh air unit according to claim 1, characterized in that, The extension rod (24) and the wind deflector (25) are connected by a rotating shaft (26), and the extension rod (24) and the wind deflector (25) are rotatably connected.

7. A household air conditioner fresh air unit according to claim 1, characterized in that, A fixing frame (30) is provided on the worm (28) and the motor (29), and one end of the fixing frame (30) is fixedly connected to the extension rod (24).