An adjustable air volume register device for use in a wall recess
The adjustable airflow ventilation port device, with its multi-layer filter module and diffused air duct design, solves the air filtration and comfort problems of traditional ventilation ports, achieving efficient purification and comfortable air delivery, thus improving air quality and user experience.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SOUTHEAST UNIV
- Filing Date
- 2025-07-24
- Publication Date
- 2026-07-07
AI Technical Summary
Traditional air vents are inadequate in terms of air filtration performance and user comfort. They cannot effectively intercept fine particulate matter and gaseous pollutants, and the direct blowing of cold air reduces thermal comfort.
It adopts a detachable multi-layer filter module and a diffused air duct design, including an activated carbon filter, an allergen filter and a negative ion sheet, combined with an airflow regulation mechanism to achieve efficient composite air purification and comfortable air delivery.
It achieves efficient filtration of particulate matter such as pollen and PM2.5, as well as harmful gases, alleviates the discomfort of direct cold air blowing, improves air quality and user comfort, and simplifies the maintenance process.
Smart Images

Figure CN224470387U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building ventilation equipment technology, and in particular to an adjustable air volume ventilation port device for embedded installation on an exterior wall. Background Technology
[0002] With modern buildings placing increasingly higher demands on indoor air quality (IAQ) and building energy efficiency, ventilation vents installed on exterior walls have become an indispensable component of building ventilation systems. The core function of these devices is to introduce fresh outdoor air and expel stale indoor air to maintain a healthy and comfortable indoor environment. Currently, common traditional ventilation vents on the market typically employ a simple structure, including a basic shell and a simple filter, primarily used to prevent insects or large dust particles from entering the room.
[0003] However, during the research and practical process, it was found that the aforementioned existing technologies have significant technical shortcomings in practical applications, especially when dealing with increasingly complex air environments and refined comfort requirements, where their limitations are particularly prominent. Specifically:
[0004] Firstly, in terms of air filtration performance, traditional air exchange vents generally use single-layer coarse filters, which have very limited filtration precision. They are almost ineffective at intercepting or purifying fine particulate matter such as pollen (approximately 30μm in diameter), PM2.5, and gaseous pollutants such as nitrogen oxides (NOx) and sulfur dioxide (SO2) generated by traffic and industrial emissions. This results in the introduction of a large amount of allergens and pollutants along with outdoor air, failing to meet modern people's demand for high-quality, healthy air.
[0005] Secondly, in terms of user comfort, the design of traditional ventilation vents does not fully consider aerodynamics. In winter or seasons with large temperature differences between indoors and outdoors, cold outdoor air will blow directly into the room through the ventilation vents in the form of concentrated airflow, creating a noticeable "cold wind feeling" and seriously affecting the thermal comfort of the residents.
[0006] Therefore, how to provide a new type of ventilation device that can achieve efficient filtration of multiple pollutants such as pollen and air pollutants while ensuring effective ventilation, and effectively alleviate the discomfort caused by direct cold air blowing, has become a specific technical problem that urgently needs to be solved in this field. Utility Model Content
[0007] The purpose of this utility model is to overcome the shortcomings of the prior art and provide an adjustable air volume ventilation port device for embedded installation on the exterior wall. By integrating the detachable and replaceable filter module with the internal diffusion air duct into an integrated structure design, it can effectively reduce the intrusion of cold air while ensuring efficient composite purification of air and greatly facilitate subsequent maintenance.
[0008] To achieve the above objectives, this utility model provides an adjustable air volume ventilation port device for embedded installation in an exterior wall. The device is suitable for embedding in the exterior wall of a building and includes:
[0009] Main body, outer shell;
[0010] The outer casing panel is detachably disposed at the front end of the main outer casing; a diffuser air duct for diffusing air is formed between the main outer casing and the outer casing panel;
[0011] An air duct opening is located on the upper part of the main outer shell, and the air duct opening is attached to the outer shell panel.
[0012] A snap-fit connection is used to secure the outer casing panel to the main outer casing.
[0013] The filter module has an internal cavity inside the main housing for accommodating the filter module;
[0014] Outside air enters the room through the filter module and the internal diffuser duct.
[0015] Furthermore, the filter module includes at least one activated carbon filter and at least one allergen filter.
[0016] Furthermore, the filter module includes an activated carbon filter and two allergen filters.
[0017] Furthermore, the allergen filter is made of high-density fiber PET material.
[0018] Furthermore, it also includes a negative ion sheet, and the end face of the outer shell panel facing the filter module is provided with a slot for fixing the negative ion sheet, and the negative ion sheet is disposed in the slot.
[0019] Furthermore, the negative ion sheet includes a metal alloy electrode and an ABS substrate.
[0020] Furthermore, the filter module also includes a filter module housing panel, which is located on the filter module, and the contact surface between the filter module housing panel and the main housing is provided with a rubber gasket.
[0021] Furthermore, the internal diffusion duct is equipped with a guide plate or a honeycomb structure.
[0022] Furthermore, it also includes an air volume regulating mechanism, which is used to control the air exchange volume by adjusting the motor speed or the damper opening.
[0023] Compared with the prior art, the beneficial effects achieved by this utility model are as follows:
[0024] (1) This utility model integrates a detachable outer panel, a replaceable filter module, and an internal diffuser duct into one unit. Compared with the complex or non-removable filter structure of traditional air vents, the snap-fit panel design makes it extremely easy to replace the internal filter module. At the same time, the internal diffuser duct design effectively solves the problem of decreased comfort caused by direct cold air blowing from traditional air vents.
[0025] (2) This utility model adopts a multi-layer composite filtration system, which integrates an allergen filter that can intercept particulate matter such as pollen, an activated carbon filter that can adsorb harmful gases, and a negative ion sheet that can settle dust through electrostatic sedimentation. Compared with the existing technology that relies on a single layer of coarse filter for purification, this device can purify particulate matter, gaseous pollutants and suspended particles in a coordinated manner, achieving dual purification and significantly improving the air quality entering the room.
[0026] (3) This utility model has a multi-level air volume adjustment function. According to different seasons or space requirements, the air exchange volume can be controlled by adjusting the motor speed or the damper opening. This overcomes the shortcomings of traditional air exchange ports having a single function and lack of flexibility, enabling the equipment to operate efficiently and energy-savingly, and enhancing the equipment's adaptability to different usage scenarios.
[0027] (4) By setting a rubber gasket on the filter module, this utility model serves as a buffer component to prevent the module from being damaged by friction with the main structure during disassembly and assembly, thus extending the service life of the device. On the other hand, it enhances the airtightness after installation, preventing air from bypassing through gaps and solving the energy loss problem caused by poor airtightness in the prior art. Attached Figure Description
[0028] Figure 1 A schematic diagram of the adjustable air volume ventilation port device for embedded installation on an exterior wall, provided in an embodiment of this utility model.
[0029] Figure 2 A cross-sectional schematic diagram of an adjustable air volume ventilation port device for embedded installation on an exterior wall, provided as an embodiment of this utility model.
[0030] Figure 3 A schematic diagram of the filter module structure provided in this embodiment of the utility model;
[0031] Figure 4 A cross-sectional schematic diagram of the filter module provided in an embodiment of this utility model;
[0032] Labeling Explanation: 1. Negative ion sheet; 2. Activated carbon filter; 3. Allergen filter; 4. Outer panel; 5. Diffuser duct; 6. Air duct outlet; 7. Rubber gasket; 8. Filter module outer panel. Detailed Implementation
[0033] The present invention will be further described below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and should not be used to limit the scope of protection of the present invention.
[0034] In the description of this utility model, it should be understood that the terms "upper," "lower," "horizontal," etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.
[0035] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0036] like Figures 1-4 As shown, this embodiment provides an adjustable air volume ventilation port device for embedded installation in an exterior wall. The device is suitable for embedding in the exterior wall of a building and includes:
[0037] Main body, outer shell;
[0038] The outer casing panel 4 is detachably located at the front of the main casing. The outer casing panel 4 can be opened by releasing the top clips to allow for the replacement of the negative ion filter and filter module.
[0039] Air duct 6 is located on the upper part of the main body shell, and air duct 6 is snapped to the shell panel 4 to fix the shell panel 4 to the main body shell;
[0040] The filter module, featuring a modular, integrated design, is replaceably located inside the main housing, at the rear of panel 4. The replacement cycle is approximately six months. Replacement is achieved by pressing a button on the side of the housing, sliding out the old module, and inserting the new one. This module includes:
[0041] At least one activated carbon filter 2 and at least one allergen filter 3. Specifically, this device includes one activated carbon filter 2 and two allergen filters 3;
[0042] Activated carbon filter 2: Removes air pollutants such as NOx and SO2, as well as odors, through physical and chemical adsorption.
[0043] Allergen Filter 3: Made of high-density fiber PET material, it can mechanically filter out ≥90% of pollen (approximately 30μm in diameter) and similar particulate matter. Test data shows that this device can remove 90% of cedar pollen.
[0044] The filter module housing panel 8 and the rubber gasket 7 located on the rear side of the filter module housing panel 8 can serve as buffer components to prevent friction damage between the filter module housing panel and the main structure.
[0045] The internal diffuser duct 5 is located inside the main housing and on the air outlet side of the filter module. The duct is equipped with a guide plate or honeycomb structure to suppress turbulence and disperse the cold air entering the room, avoiding localized low temperatures and a direct feeling of cold air blowing in due to concentrated airflow.
[0046] The negative ion plate 1, located in a slot at the rear of the outer casing panel 4, is composed of a metal alloy electrode and an ABS substrate. This negative ion plate 1 can release negative ions at a concentration of up to 3,000 ions / cm³. Through electrostatic sedimentation, it combines with positively charged suspended particles (such as dust and bacteria) in the air, causing them to settle and thus purifying the air. To ensure discharge efficiency, it is recommended to wipe its surface with a dry cloth every six months.
[0047] The airflow regulation mechanism controls the air exchange volume by adjusting the motor speed or the damper opening. This device features multiple airflow adjustment levels; for example, level 1 has an airflow of 6.1 m³ / h, while level 2 can reach 15.1 m³ / h, suitable for the high-efficiency ventilation needs of large spaces.
[0048] When in operation, outside air enters through the ventilation duct connected to the device, and is purified by passing through the negative ion sheet 1, activated carbon filter 2 and allergen filter 3 in sequence. After intercepting most of PM2.5, pollen, allergens and some harmful gases, the clean air then flows into the room through the internal diffuser duct 5 and duct opening 6.
[0049] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.
Claims
1. An adjustable air volume ventilation port device for embedded installation in an exterior wall, the device being suitable for embedded installation in the exterior wall of a building, characterized in that, include: Main body, outer shell; The outer casing panel (4) is detachably disposed at the front end of the main body outer casing. An internal diffusion duct (5) for diffusing air is formed between the main outer shell and the outer shell panel (4); An air duct (6) is provided on the upper part of the main body shell, and the air duct (6) is snapped to the shell panel (4) to fix the shell panel (4) to the main body shell; The filter module has an internal cavity within its main housing for accommodating the filter module. Outside air enters the room through the filter module and the internal diffuser duct (5).
2. The adjustable air volume ventilation port device for embedded installation on an exterior wall according to claim 1, characterized in that, The filter module includes at least one activated carbon filter (2) and at least one allergen filter (3).
3. The adjustable air volume ventilation port device for embedded installation on an exterior wall according to claim 1, characterized in that, The filter module includes an activated carbon filter (2) and two allergen filters (3).
4. The adjustable air volume ventilation port device for embedded installation on an exterior wall according to claim 2, characterized in that, The allergen filter (3) is made of high-density fiber PET material.
5. The adjustable air volume ventilation port device for embedded installation on an exterior wall according to claim 1, characterized in that, It also includes a negative ion sheet (1), and the outer shell panel (4) has a slot for fixing the negative ion sheet (1) on one end face facing the filter module.
6. The adjustable air volume ventilation port device for embedded installation on an exterior wall according to claim 5, characterized in that, The negative ion sheet (1) includes a metal alloy electrode and an ABS substrate.
7. The adjustable air volume ventilation port device for embedded installation on an exterior wall according to claim 1, characterized in that, The filter module also includes a filter module housing panel (8), which is located on the filter module. The contact surface between the filter module housing panel (8) and the main housing is provided with a rubber gasket (7).
8. The adjustable air volume ventilation port device for embedded installation on an exterior wall according to claim 1, characterized in that, The internal diffusion duct (5) is equipped with a guide plate or a honeycomb structure.
9. The adjustable air volume ventilation port device for embedded installation on an exterior wall according to claim 1, characterized in that, It also includes an air volume regulation mechanism, which is used to control the air exchange volume by adjusting the motor speed or the damper opening.