An energy-saving fresh air unit structure

By introducing a cleaning mechanism consisting of a vacuum cleaner and a rotating air duct assembly into the fresh air unit, the problem of filter clogging is solved, achieving low energy consumption and high-efficiency air purification, and simplifying the maintenance process.

CN224580393UActive Publication Date: 2026-07-31BEIJING ZHONGYI COMMUNICATIONS GROUP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
BEIJING ZHONGYI COMMUNICATIONS GROUP CO LTD
Filing Date
2025-09-15
Publication Date
2026-07-31

AI Technical Summary

Technical Problem

The filter components of existing fresh air units are prone to clogging, leading to increased ventilation resistance and energy consumption, as well as high cleaning and maintenance costs.

Method used

A cleaning mechanism including a vacuum cleaner is designed to periodically clean the inner wall of the filter cartridge through a suction hood and a rotating air tube assembly. The suction hood is in close contact with the inner wall of the filter cartridge, and with the help of a rotating motor, it ensures that pollutants are evenly removed and are directly discharged to the outside of the main unit.

Benefits of technology

It effectively avoids increased ventilation resistance caused by pollutant accumulation in the filter cartridge, reduces the additional energy consumption of the blower, achieves low-energy and stable operation of the main unit, simplifies maintenance operations, and avoids secondary pollution.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to the technical field of fresh air systems for base station equipment rooms, specifically, to an energy-saving fresh air unit structure, including a housing. An air inlet is located at the top rear side of the housing, and an air outlet is located at the bottom front side of the housing. A partition is fixedly connected inside the housing, and a filter cartridge is fixedly inserted through the partition. A blower is installed inside the housing and below the filter cartridge, and the blower is used to exhaust the air entering through the air inlet from the air outlet. A cleaning mechanism is provided on the partition, including a vacuum cleaner, the exhaust end of which extends to the outside of the housing. This utility model, through the regular cleaning of the inner wall of the filter cartridge by the cleaning mechanism, can effectively avoid the problem of increased ventilation resistance caused by the accumulation of pollutants in the filter cartridge, reduce the extra energy consumption required by the blower to maintain airflow, and achieve long-term stable low-energy operation of the main unit.
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Description

Technical Field

[0001] This utility model relates to the technical field of fresh air systems for base station equipment rooms, and more specifically, to an energy-saving fresh air unit structure. Background Technology

[0002] With increasing demands for indoor air quality, fresh air systems, as crucial equipment for improving indoor air quality, are widely used in residential, office, and commercial buildings. The fresh air unit, as the core component of a fresh air system, primarily functions to filter and purify outdoor air before introducing it into the room, while expelling stale indoor air, thus achieving air circulation and exchange between indoors and outdoors.

[0003] In existing technologies, fresh air systems typically include a casing, air inlet, air outlet, filter components, and a blower. Outdoor air enters the casing through the air inlet, passes through the filter components to remove particulate matter, odors, and other pollutants, and is then delivered into the room through the air outlet by the blower. However, over long-term use, dust, impurities, and other pollutants easily accumulate on the surface of the filter components, leading to increased ventilation resistance. This forces the blower to consume more energy to maintain the rated airflow, increasing energy consumption and reducing filtration efficiency and lifespan. Utility Model Content

[0004] This utility model addresses the technical problems existing in the prior art by providing an energy-saving fresh air host structure, which solves the problems of easy clogging of the filter components, high cleaning and maintenance costs, and increased energy consumption in existing fresh air host systems.

[0005] To achieve the above objectives, this utility model provides an energy-saving fresh air unit structure, including a housing, an air inlet at the top rear side of the housing, an air outlet at the bottom front side of the housing, a partition fixedly connected inside the housing, a filter cartridge fixedly passing through the partition, a blower installed inside the housing and below the filter cartridge, the blower being used to exhaust the air entering through the air inlet from the air outlet, a cleaning mechanism provided on the partition, the cleaning mechanism including a vacuum cleaner, the exhaust end of the vacuum cleaner extending to the outside of the housing.

[0006] Based on the above technical solution, the present invention can be further improved as follows.

[0007] Preferably, the cleaning mechanism also includes a booster frame fixedly installed on the top of the partition, a vacuum cleaner fixedly installed on the booster frame, an air pipe assembly provided at the suction end of the vacuum cleaner, and a suction hood connected to the end of the air pipe assembly away from the vacuum cleaner, with the opening end of the suction hood abutting against the inner wall of the filter cartridge.

[0008] Preferably, the air tube assembly includes a connecting hose, a connecting rigid tube, and bronchial tubes. One end of the connecting hose is connected to the suction end of the vacuum cleaner, and the other end is connected to the top opening of the connecting rigid tube. Multiple bronchial tubes are provided and connected to the connecting rigid tube. The end of the bronchial tube away from the connecting rigid tube is connected to the suction hood.

[0009] Preferably, the connecting rigid tube is rotatably inserted into the riser frame, the connecting rigid tube is rotatably connected to the connecting flexible tube, the connecting rigid tube is rotatably connected to the bottom end of the inner wall of the filter cartridge, and a connecting frame is fixedly connected between the connecting rigid tube and the suction hood.

[0010] Preferably, the riser frame is equipped with a drive assembly for driving the rotation of the connecting rigid tube. The drive assembly includes a rotary motor and a pulley set. The rotary motor is fixedly mounted on the riser frame, and the output end of the rotary motor is connected to the connecting rigid tube via the pulley set.

[0011] Preferably, a horizontally arranged bracket is fixedly connected to the inner wall of the housing, and the top of the bracket is fixedly connected to the bottom of the filter cartridge.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: Regular cleaning of the inner wall of the filter cartridge by the cleaning mechanism can effectively avoid the problem of increased ventilation resistance caused by the accumulation of pollutants in the filter cartridge, reduce the extra energy consumption required by the blower to maintain the air volume, and achieve long-term stable low-energy operation of the main unit. The drive unit rotates the connecting rigid tube and suction hood along the inner wall of the filter cartridge. With the help of multiple sets of branch tubes to disperse the suction force, the suction hood can fully cover the inner wall of the filter cartridge, ensuring that pollutants are evenly removed. The tight contact design between the suction hood and the inner wall of the filter cartridge further improves the pollutant adsorption efficiency and reduces cleaning dead corners. The vacuum cleaner's exhaust end extends directly to the outside of the casing, allowing collected contaminants to be discharged directly from the main unit. This eliminates the need for frequent disassembly of the casing to clean internal buildup, preventing secondary pollution caused by contaminants scattering inside the casing and simplifying daily maintenance. Attached Figure Description

[0013] Figure 1 This is an isometric view of one side of the overall structure of this utility model; Figure 2 This is a schematic diagram of the left-side cross-sectional structure of this utility model; Figure 3 This is a schematic diagram of the structure of the vacuum cleaner of this utility model; Figure 4 This is a front cross-sectional view of the present invention.

[0014] The meanings of the labels in the diagram are as follows: 1. Housing; 101. Bracket; 102. Air inlet; 103. Air outlet; 2. Partition; 201. Filter cartridge; 3. Blower; 4. Cleaning mechanism; 401. Vacuum cleaner; 402. Elevator; 403. Rotary motor; 404. Pulley assembly; 405. Connecting hose; 406. Connecting rigid pipe; 407. Connecting frame; 408. Branch pipe; 409. Suction hood. Detailed Implementation

[0015] 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.

[0016] Please see Figures 1-4 As shown, this embodiment provides an energy-saving fresh air unit structure, including a housing 1. The housing 1 serves as the supporting frame for the entire unit, providing installation space for internal components and forming an air circulation cavity. An air inlet 102 is provided at the top rear side of the housing 1 for introducing outdoor air to be treated; an air outlet 103 is provided at the bottom front side of the housing 1 for delivering purified air into the room. A partition 2 is fixedly connected inside the housing 1, dividing the interior of the housing 1 into upper and lower functional areas, and providing a mounting base for the filter components and cleaning mechanism 4.

[0017] A filter cartridge 201 is fixedly inserted through the partition 2. The filter cartridge 201 serves as the core purification component, used to intercept pollutants such as particulate matter and dust in the air, thereby achieving air purification. Inside the housing 1 and below the filter cartridge 201, a blower 3 is installed. The blower 3 drives airflow by generating negative pressure, specifically used to purify the air entering through the air inlet 102 by passing it through the filter cartridge 201 and then expelling it from the air outlet 103, thus completing the circulation and replacement of indoor and outdoor air.

[0018] To prevent increased energy consumption due to clogging of the filter cartridge 201 after long-term use, a cleaning mechanism 4 is provided on the partition 2. The cleaning mechanism 4 includes a vacuum cleaner 401, which provides negative pressure suction as a power source to remove pollutants attached to the inner wall of the filter cartridge 201. The exhaust end of the vacuum cleaner 401 extends to the outside of the housing 1, which can directly discharge the collected pollutants into the main unit, avoiding the accumulation of pollutants in the housing 1 and causing secondary pollution.

[0019] In summary, the improvement of this embodiment is that by regularly cleaning the inner wall of the filter cartridge 201 through the cleaning mechanism 4, the problem of increased ventilation resistance caused by the accumulation of pollutants in the filter cartridge 201 can be effectively avoided, the extra energy consumption required by the blower 3 to maintain the air volume can be reduced, and the main unit can achieve long-term stable low-energy operation.

[0020] Based on the above, other structures also need to be disclosed in detail, such as: Furthermore, the cleaning mechanism 4 also includes a booster frame 402 fixedly installed on the top of the partition 2. The booster frame 402 is used to raise the installation height of the vacuum cleaner 401, making its relative position with the filter cartridge 201 more reasonable, and at the same time providing support for the air hose assembly and drive assembly. The vacuum cleaner 401 is fixedly installed on the booster frame 402. The suction end of the vacuum cleaner 401 is provided with an air hose assembly, which serves as an airflow channel for transporting contaminants from the inner wall of the filter cartridge 201 to the vacuum cleaner 401. The end of the air hose assembly away from the vacuum cleaner 401 is connected to a suction hood 409. The open end of the suction hood 409 abuts against the inner wall of the filter cartridge 201. By increasing the contact area with the inner wall of the filter cartridge 201, the suction hood 409 improves the adsorption efficiency of contaminants.

[0021] Specifically, the air duct assembly includes a connecting hose 405, a connecting rigid tube 406, and bronchial tubes 408. One end of the connecting hose 405 is connected to the suction end of the vacuum cleaner 401, and the other end is connected to the top opening of the connecting rigid tube 406. The connecting hose 405 is flexible and can adapt to the rotation of the connecting rigid tube 406. The connecting rigid tube 406 serves as a rigid support structure for the air duct assembly, used to fix the bronchial tubes 408 and transmit rotational power. Multiple bronchial tubes 408 are provided and connected to the connecting rigid tube 406. The bronchial tubes 408 are used to distribute the suction power to multiple suction hoods 409 to achieve multi-point cleaning. The end of the bronchial tube 408 away from the connecting rigid tube 406 is connected to the suction hood 409 to ensure stable suction power of the suction hood 409.

[0022] To achieve thorough cleaning of the inner wall of the filter cartridge 201, a connecting rigid tube 406 is rotatably inserted through the riser frame 402. The connecting rigid tube 406 is rotatably connected to the connecting flexible tube 405, and the connecting rigid tube 406 is rotatably connected to the bottom end of the inner wall of the filter cartridge 201. The above-mentioned rotatable connection structure allows the connecting rigid tube 406 to rotate around its own axis. A connecting frame 407 is fixedly connected between the connecting rigid tube 406 and the suction hood 409. The connecting frame 407 is used to transmit the rotational power of the connecting rigid tube 406 to the suction hood 409, causing the suction hood 409 to move circumferentially along the inner wall of the filter cartridge 201.

[0023] The riser frame 402 is equipped with a drive assembly for driving the rotation of the connecting rigid tube 406. The drive assembly includes a rotary motor 403 and a pulley set 404. The rotary motor 403 is fixedly mounted on the riser frame 402 to provide power for the rotation of the connecting rigid tube 406. The output end of the rotary motor 403 is connected to the connecting rigid tube 406 through the pulley set 404. The pulley set 404 transmits power through friction to ensure that the connecting rigid tube 406 rotates smoothly.

[0024] In addition, a horizontally arranged bracket 101 is fixedly connected to the inner wall of the housing 1. The top end of the bracket 101 is fixedly connected to the bottom end of the filter cartridge 201. The bracket 101 is used to assist in supporting the filter cartridge 201, enhance the stability of the filter cartridge 201 during operation, and prevent the filter cartridge 201 from shaking due to airflow impact or the action of the cleaning mechanism 4.

[0025] In summary, the working principle of this solution is as follows: After the blower 3 is started, a negative pressure is formed inside the casing 1. Outdoor air enters the upper chamber from the air inlet 102 at the top rear side of the casing 1, and then flows into the filter cartridge 201. As the air passes through the filter cartridge 201, particles, dust and other contaminants are intercepted and purified by the filter screen. The purified air flows out from the bottom of the filter cartridge 201 and enters the lower chamber of the casing 1. Finally, driven by the blower 3, it is sent into the room from the air outlet 103.

[0026] Filter cartridge 201 cleaning process: When the rotary motor 403 is powered on, it drives the connecting rigid pipe 406 to rotate around its own axis via the pulley group 404. The connecting rigid pipe 406 drives the suction hood 409 to move in a circular motion along the inner wall of the filter cylinder 201 through the connecting frame 407, and the suction hood 409 is always in close contact with the inner wall. At the same time, the vacuum cleaner 401 starts up and generates negative pressure suction. Dust and impurities attached to the inner wall of the filter cartridge 201 enter the bronchus 408 through the suction hood 409 and are sucked into the vacuum cleaner 401 through the connecting rigid tube 406 and the connecting flexible tube 405. The pollutants collected by the vacuum cleaner 401 are directly discharged to the outside through the pipe connected to its discharge end. After cleaning is completed (if it lasts for 1-2 minutes), the rotary motor 403 and the vacuum cleaner 401 stop working, the suction hood 409 returns to its initial position, and the main unit resumes normal air purification operation.

[0027] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An energy-saving fresh air host structure, comprising a casing (1), characterized in that: An air inlet (102) is provided on the top rear side of the housing (1), and an air outlet (103) is provided on the bottom front side of the housing (1). A partition (2) is fixedly connected inside the housing (1), and a filter cartridge (201) is fixedly passed through the partition (2). A blower (3) is installed inside the housing (1) and below the filter cartridge (201). The blower (3) is used to discharge the air entering through the air inlet (102) from the air outlet (103). A cleaning mechanism (4) is provided on the partition (2). The cleaning mechanism (4) includes a vacuum cleaner (401), and the discharge end of the vacuum cleaner (401) extends to the outside of the housing (1).

2. The energy-saving fresh air main unit structure according to claim 1, characterized in that: The cleaning mechanism (4) also includes a booster frame (402) fixedly installed on the top of the partition (2). The vacuum cleaner (401) is fixedly installed on the booster frame (402). The suction end of the vacuum cleaner (401) is provided with an air pipe assembly. The end of the air pipe assembly away from the vacuum cleaner (401) is connected to a suction hood (409). The opening end of the suction hood (409) abuts against the inner wall of the filter cartridge (201).

3. The energy-saving fresh air main unit structure according to claim 2, characterized in that: The airway assembly includes a connecting hose (405), a connecting rigid tube (406), and bronchus tubes (408). One end of the connecting hose (405) is connected to the suction end of the vacuum cleaner (401), and the other end is connected to the top opening of the connecting rigid tube (406). Multiple bronchus tubes (408) are provided and connected to the connecting rigid tube (406). The end of the bronchus tube (408) away from the connecting rigid tube (406) is connected to the suction hood (409).

4. The energy-saving fresh air main unit structure according to claim 3, characterized in that: The connecting rigid tube (406) is rotatably installed on the riser (402), the connecting rigid tube (406) is rotatably connected to the connecting flexible tube (405), the connecting rigid tube (406) is rotatably connected to the bottom end of the inner wall of the filter cylinder (201), and a connecting frame (407) is fixedly connected between the connecting rigid tube (406) and the suction hood (409).

5. The energy-saving fresh air main unit structure according to claim 4, characterized in that: The riser frame (402) is provided with a drive assembly for driving the connecting rigid tube (406) to rotate. The drive assembly includes a rotary motor (403) and a pulley set (404). The rotary motor (403) is fixedly installed on the riser frame (402), and the output end of the rotary motor (403) is connected to the connecting rigid tube (406) through the pulley set (404).

6. The energy-saving fresh air main unit structure according to claim 1, characterized in that: The inner wall of the housing (1) is fixedly connected to a horizontally arranged bracket (101), and the top end of the bracket (101) is fixedly connected to the bottom end of the filter cylinder (201).