Low-wind-loss fresh air equipment

Abstract

The utility model discloses a kind of low wind loss fresh air equipment, it is characterized by: the backboard is equipped with air inlet, at least one side fence is equipped with mesh, the shell is equipped with fan with air inlet butt joint in;The fan includes motor, several guide vanes rotated by motor drive and barrel wall arranged around guide vane;Several spiral arranged air outlet holes are opened on the barrel wall;The utility model adopts the integrated airflow path design of "linear suction and spiral export", reduces wind loss from the root;Fresh air does not need to pass through complex pipeline, directly from the wall through-hole into fan through backplate air inlet, substantially reduce pipeline along-path resistance;Centrifugal force generated by guide vane rotation and barrel wall spiral air outlet hole trajectory accurate matching, make airflow along spiral path smoothly discharge, avoid local resistance loss caused by airflow direction mutation, finally under the same air volume demand, can reduce motor power consumption, significantly improve equipment operating efficiency.

Description

Technical Field

[0001] This utility model relates to the field of fresh air equipment technology, specifically to a low-wind-loss fresh air equipment. Background Technology

[0002] With increasing emphasis on indoor air quality, fresh air systems have become a core component for improving indoor air quality. However, existing fresh air systems still suffer from several technical challenges in practical applications: First, traditional fresh air systems often rely on complex ductwork connecting the outdoors and indoors. This ductwork suffers from high resistance and is prone to leaks at the joints, leading to significant air pressure loss. This not only reduces ventilation efficiency but also requires higher-powered motors to meet airflow demands, resulting in energy waste. Second, while some ductless fresh air systems simplify installation, their poorly designed intake paths can cause localized turbulence due to sudden changes in airflow direction, further exacerbating air loss. Additionally, their outlet structures are often direct-ventilation, resulting in uneven airflow and noise from airflow impacts. Third, insufficient sealing between the system and the wall during installation can allow unfiltered outdoor air to seep in through gaps or leaked fresh air, affecting indoor air quality and system stability. Therefore, a low-air-loss fresh air system is proposed. Summary of the Invention

[0003] The purpose of this invention is to provide a low-wind-loss fresh air device to solve the above problems.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a low-wind-loss fresh air device, comprising a shell that fits against a wall, the shell comprising a back plate that fits against the wall, a front plate disposed opposite to the back plate, and a plurality of surrounding plates connecting the back plate and the front plate; characterized in that: the back plate is provided with an air inlet, at least one of the surrounding plates is provided with a mesh for air outlet, and the shell is provided with a fan that connects to the air inlet; the fan comprises a motor, a plurality of guide blades driven to rotate by the motor, and a barrel wall disposed around the guide blades; the barrel wall is provided with a plurality of spirally arranged air outlet holes for guiding the airflow to be smoothly discharged along a trajectory adapted to the rotation direction of the guide blades.

[0005] Preferably, the enclosure is provided with wall mounts for fixing the equipment to the wall.

[0006] Preferably, the front panel is equipped with a control panel for controlling the operation of the equipment.

[0007] The beneficial effects of this utility model are as follows: This equipment adopts an integrated airflow path design of "straight-line intake and spiral exhaust", which reduces wind loss at the source; fresh air does not need to go through complicated pipes, but directly enters the fan from the wall through the air inlet of the back plate, which greatly reduces the resistance along the pipe; the centrifugal force generated by the rotation of the guide vanes is precisely matched with the trajectory of the air outlet hole on the barrel wall, so that the airflow is smoothly discharged along the spiral path, avoiding the local resistance loss caused by the sudden change of airflow direction. Ultimately, under the same air volume requirement, the power consumption of the motor can be reduced, and the operating efficiency of the equipment can be significantly improved. Attached Figure Description

[0008] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the overall structure of this utility model from another perspective; Figure 3 This is a schematic diagram of the fan structure of this utility model.

[0009] Legend: 1. Shell; 11. Back panel; 12. Front panel; 13. Enclosure; 2. Air inlet; 3. Mesh; 4. Fan; 41. Motor; 42. Guide vane; 43. Barrel wall; 431. Air outlet; 5. Wall mount; 6. Control panel. Detailed Implementation

[0010] The low-wind-loss fresh air device of this utility model will be further described below with reference to the accompanying drawings.

[0011] It should be noted that all directional indications in the embodiments of the present invention, such as up, down, left, right, front, back, etc., are only used to explain the relative positional relationship and movement of the components in a specific posture as shown in the attached figure. If the specific posture changes, the directional indication will also change accordingly.

[0012] See appendix Figure 1-3As shown, this embodiment of a low-wind-loss fresh air device includes a housing 1 that is attached to a wall. The housing 1 includes a back plate 11 that is attached to the wall, a front plate 12 that is opposite to the back plate 11, and a plurality of surrounding plates 13 that connect the back plate 11 and the front plate 12. The back plate 11 has an air inlet 2, and at least one of the surrounding plates 13 has a mesh 3 for air outlet. The housing 1 contains a fan 4 that connects to the air inlet 2. The fan 4 includes a motor 41 and a plurality of guide tubes driven by the motor 41 to rotate. The guide vane 42 and the barrel wall 43 surrounding the guide vane 42 are provided with a plurality of spirally arranged air outlet holes 431 for guiding the airflow to be smoothly discharged along a trajectory adapted to the rotation direction of the guide vane 42; the wall can be a concrete wall, a brick wall, a glass wall or a glass window, adaptable to different building wall types; the front plate 12, the back plate 11 and the surrounding plate 13 can be bolted together to form a shell 1, the shell 1 can be made of engineering plastic or metal sheet, combining lightweight and structural strength.

[0013] To further improve the sealing performance between the equipment and the wall and the efficiency of airflow introduction, a through hole matching the size of the air inlet 2 needs to be pre-set on the wall. A pipe fitting can be added in the through hole. The pipe fitting is preferably made of PVC material or rubber sealing pipe. One end of the pipe fitting is sealed to the air inlet 2 through a sealing ring, and the other end extends to the outside and can be connected to an outdoor air filter. This design can prevent air from leaking from the gaps in the wall or the connection between the wall through hole and the air inlet 2 of the back panel 11, while ensuring that all air entering the equipment is filtered.

[0014] After the back panel 11 of the housing 1 is installed flush with the wall, the equipment can form an efficient air circulation path: the filtered outdoor fresh air, driven by the fan 4, passes through the outdoor filter, pipe fittings, and wall openings in sequence and enters the air inlet 2 on the back panel 11; the air entering the housing 1 is subjected to centrifugal force to form an orderly airflow as the guide vanes 42 are rotated by the motor 41, and flows towards the barrel wall 43 along the rotation trajectory of the guide vanes 42; then, the airflow is smoothly discharged through the air outlet 431 on the barrel wall 43, which is precisely matched with the rotation direction of the guide vanes 42, and finally diffuses evenly into the indoor space through the mesh 3 on the enclosure 13, avoiding the impact of airflow from direct exhaust.

[0015] This equipment adopts an integrated airflow path design of "straight-line intake and spiral exhaust" to reduce wind loss at the source. Fresh air does not need to go through complicated pipes and enters the fan 4 directly from the wall through the air inlet 2 of the back plate 11, which greatly reduces the resistance along the pipe. The centrifugal force generated by the rotation of the guide vane 42 is precisely matched with the trajectory of the air outlet 431 of the barrel wall 43, so that the airflow is smoothly discharged along the spiral path, avoiding local resistance loss caused by sudden changes in airflow direction. Ultimately, under the same air volume requirement, the power consumption of the motor 41 can be reduced, and the operating efficiency of the equipment can be significantly improved.

[0016] See appendix Figure 1-3 As shown, the enclosure 13 is provided with wall-mounted brackets 5 for fixing the equipment to the wall; the housing 1 is connected to the wall by the wall-mounted brackets 5 on the enclosure 13 and expansion bolts, and the back plate 11 of the housing 1 can fit tightly against the wall after installation; this design not only ensures the overall installation firmness of the equipment, but also provides a structural basis for the sealed connection between the air inlet 2 and the through hole in the wall, effectively avoiding airflow leakage or slight shaking of the equipment during operation due to installation gaps.

[0017] See appendix Figure 1-2 As shown, a control panel 6 for controlling the operation of the equipment is installed on the front panel 12. Users can control the equipment by starting and stopping, adjusting the fan speed, setting a timer to shut down, and switching modes through the control panel 6. The control panel 6 can also display the equipment's operating status in real time, enabling convenient control of the operating parameters of the fresh air equipment and improving the intuitiveness of operation and user experience.

[0018] In use, this invention requires pre-drilling through holes matching the size of the air inlet 2 on the target wall and inserting pipe fittings into these holes. The outdoor end of the pipe fitting connects to the air filter, and the indoor end connects to the air inlet 2 of the back panel 11. If the wall is made of glass, a sealing ring can be installed at the end of the air inlet 2 to increase the sealing performance between the end of the air inlet 2 and the wall. Then, the housing 1 is fixed to the wall using the wall-mounted fittings 5 ​​on the enclosure 13 and expansion bolts, ensuring a tight fit between the back panel 11 and the wall. Fresh air can enter the fan simply by passing through the wall, shortening the airflow path. The user starts the device via the control panel 6 on the front panel 12. The motor 41 drives the guide vanes 42 to rotate at high speed. After being filtered by the filter, the fresh outdoor air enters the fan 4 through the wall opening or the pipe fitting installed in the opening and through the air inlet 2 on the back panel 11. During the rotation of the guide vanes 42, centrifugal force is generated, and the rotation direction of the guide vanes 42 is precisely matched with the trajectory of the air outlet 431 on the barrel wall 43. The air is discharged along the spiral trajectory through the air outlet 431 on the barrel wall 43 and finally diffused evenly into the room through the mesh 3 of the enclosure 13, achieving efficient replacement of indoor air and thus significantly improving indoor air quality.

[0019] The above embodiments are illustrative of the present invention and are not intended to limit the present invention. Any simple modifications to the present invention are within the protection scope of the present invention.

Claims

1. A low-wind-loss fresh air equipment, comprising a shell (1) attached to a wall, the shell (1) comprising a back plate (11) attached to the wall, a front plate (12) arranged opposite to the back plate (11), and a plurality of surrounding plates (13) connecting the back plate (11) and the front plate (12); characterized in that: The back plate (11) is provided with an air inlet (2), and at least one side panel (13) is provided with a mesh (3) for air outlet. The housing (1) is provided with a fan (4) that is connected to the air inlet (2). The fan (4) includes a motor (41), a number of guide blades (42) driven to rotate by the motor (41), and a barrel wall (43) arranged around the guide blades (42). The barrel wall (43) is provided with a number of spirally arranged air outlet holes (431) for guiding the airflow to be smoothly discharged along a trajectory that is adapted to the rotation direction of the guide blades (42).

2. The low-wind-loss fresh air device according to claim 1, characterized in that: The enclosure (13) is provided with wall mounts (5) for fixing the equipment to the wall.

3. The low-wind-loss fresh air device according to claim 1, characterized in that: The front panel (12) is equipped with a control panel (6) for controlling the operation of the equipment.

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