High efficiency air filter structure for medical devices
Patent Information
- Application Number
- CN202522286652.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-29
- Publication Date
- 2026-09-22
- Estimated Expiration
- 2035-10-29
AI Technical Summary
[0002]医疗设备对配套空气过滤装置的净化效率、稳定性及维护便捷性要求极高，现有医疗用空气过滤器多存在过滤层级单一、模块化程度低(维护时需整体拆解，操作繁琐)、过滤面积有限(易堵塞导致使用寿命短)等问题，无法满足医疗场景下对空气深度净化及长期稳定使用的需求
[0013]多级净化高效：通过除尘过滤网(滤除固体杂质)、活性炭过滤网(吸附异味与有害气体)、光催化剂板+紫外线灯(分解细菌与有机污染物)的协同作用，实现空气的深度净化与消毒，满足医疗场景需求；
Smart Images
Figure CN224777635U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of air purification equipment technology, and in particular to the structure of a high-efficiency air filter for medical equipment. Background Technology
[0002] Medical equipment demands extremely high purification efficiency, stability, and ease of maintenance from its accompanying air filtration devices. Existing medical air filters often suffer from problems such as single filtration levels, low modularity (requiring complete disassembly for maintenance, which is cumbersome), and limited filtration area (prone to clogging and resulting in short lifespan), failing to meet the demands for deep air purification and long-term stable use in medical settings. Therefore, a high-efficiency air filter structure for medical equipment is proposed. Utility Model Content
[0003] This invention aims to achieve multi-stage air purification through "dust removal, odor removal, and disinfection," while improving maintenance convenience through modular structure and extending service life through optimized filter structure.
[0004] The technical solution adopted by this utility model to solve the above problems is as follows:
[0005] A high-efficiency air filter structure for medical devices includes a housing, which is divided into an air inlet, a filter, and an exhaust section along the airflow direction. The air inlet, filter, and exhaust sections are fixedly connected by fasteners to form a detachable modular structure. The air inlet has an air inlet at the end away from the filter, and the exhaust section has an exhaust outlet at the end away from the filter. An intake fan is installed in the air inlet, and an exhaust fan is installed in the exhaust outlet. The filter section has at least one high-efficiency filter unit, which is arranged along the airflow direction and is sealed to the inner wall of the filter section. The intake fan and exhaust fan are configured to form a directional airflow channel from the air inlet to the exhaust outlet. The airflow channel flows sequentially through the air inlet, the high-efficiency filter unit in the filter section, and the exhaust section.
[0006] Furthermore, the high-efficiency filtration unit is a filtration layer provided inside the filtration section.
[0007] Furthermore, the filter layer near the air inlet is a dust removal filter, and the filter layer near the air outlet is an activated carbon filter.
[0008] Furthermore, the dust removal filter and activated carbon filter are rounded at the ends near the air outlet to increase the filtration area.
[0009] Furthermore, the filter section is also equipped with a photocatalyst plate, and multiple ultraviolet lamps are installed on the inner wall of the filter section.
[0010] Furthermore, the photocatalyst plate is a three-dimensional honeycomb ceramic mesh loaded with nano-titanium dioxide.
[0011] Furthermore, the fasteners are bolts and nuts.
[0012] Compared with the prior art, this utility model has the following advantages:
[0013] Multi-stage purification and high efficiency: Through the synergistic effect of dust filter (removing solid impurities), activated carbon filter (adsorbing odors and harmful gases), photocatalyst plate + ultraviolet lamp (decomposing bacteria and organic pollutants), deep air purification and disinfection are achieved to meet the needs of medical scenarios.
[0014] Easy maintenance: The air inlet, filter and exhaust sections are detachably connected by bolts and nuts to form a modular structure. The filter screen can be quickly disassembled and replaced or the UV lamp can be repaired without disassembling the whole equipment.
[0015] High durability: The arc-shaped design of the dust filter and activated carbon filter increases the filtration area, reduces the adhesion pressure of pollutants per unit area, delays clogging, and extends the service life of the filter. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the main body of this utility model.
[0017] Figure 2 This is a schematic diagram of the internal structure of this utility model.
[0018] The following are the labels in the diagram: 1. Housing; 2. Air inlet; 3. Filter; 4. Exhaust; 5. Fastener; 6. Air inlet; 7. Exhaust; 8. Inlet fan; 9. Exhaust fan; 10. Dust filter; 11. Activated carbon filter; 12. Photocatalyst plate; 13. Ultraviolet lamp. Detailed implementation method:
[0019] The following are specific embodiments of the present invention, and the technical solution of the present invention will be further described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.
[0020] like Figure 1-2As shown, the structure of the high-efficiency air filter for medical devices of this utility model includes a housing 1. The housing 1 is divided into an air inlet 2, a filter 3, and an exhaust 4 in sequence along the air flow direction. The air inlet 2, the filter 3, and the exhaust 4 are fixedly connected by fasteners 5 to form a detachable modular structure. The air inlet 2 has an air inlet 6 at the end away from the filter 3, and the exhaust 4 has an exhaust outlet 7 at the end away from the filter 3. An intake fan 8 is provided in the air inlet 6, and an exhaust fan 9 is provided in the exhaust outlet 7. The filter 3 has at least one high-efficiency filter unit. The high-efficiency filter unit is arranged along the air flow direction and is sealed to the inner wall of the filter 3. The intake fan 8 and the exhaust fan 9 are configured to form a directional airflow channel from the air inlet 6 to the exhaust outlet 7. The airflow channel flows sequentially through the air inlet 2, the high-efficiency filter unit in the filter 3, and the exhaust 4.
[0021] The core structure of the high-efficiency air filter for medical devices is a housing 1, which is divided into three functional areas according to the airflow direction: an air inlet 2, a filter 3, and an exhaust 4. These three areas are fixedly connected by fasteners 5, forming a detachable modular structure for easy maintenance or replacement of parts. The air inlet 2 has an air inlet 6 at the end away from the filter 3, and an air intake fan 8 is installed inside the air inlet 6. The exhaust 4 has an exhaust outlet 7 at the end away from the filter 3, and an exhaust fan 9 is installed inside the exhaust outlet 7. The filter 3 contains at least one high-efficiency filter unit. These high-efficiency filter units are arranged according to the airflow direction and are sealed to the inner wall of the filter 3 to prevent unfiltered air from leaking out of the gaps. Its function is to form a directional airflow channel from the air inlet 6 to the air outlet 7 inside the filter through the coordinated work of the intake fan 8 and the exhaust fan 9. This allows air to flow sequentially through the air inlet 2, the high-efficiency filter unit in the filter section 3, and the exhaust section 4. The high-efficiency filter unit intercepts and filters particles and impurities in the airflow to achieve air purification. The detachable modular structure makes it easy for staff to disassemble the equipment and replace or clean the high-efficiency filter unit, ensuring that the filter continuously and stably provides high-efficiency air filtration for medical equipment.
[0022] Preferably, the high-efficiency filtration unit here specifically refers to the layered filtration structure set inside the filtration section 3. This filtration structure is based on two layers of filters. The first layer of filters near the air inlet 2 is a dust removal filter 10, and the second layer of filters near the air outlet 4 is an activated carbon filter 11. The two layers of filters are arranged in sequence according to the order of air flow, and both are sealed to the inner wall of the filtration section 3 to ensure that the airflow can flow completely through the two layers of filters without leakage. Its function is to achieve graded filtration based on the different functions of the two layers of filters: when the airflow enters the filter section 3 from the air inlet 2, it will first flow through the first layer of dust removal filter 10. This filter removes solid particles, dust, hair and other impurities carried in the airflow through physical interception, completing the initial air purification; the airflow after the initial filtration then enters the second layer of activated carbon filter 11. Activated carbon, with its own porous structure and adsorption characteristics, adsorbs and removes residual odors, volatile harmful gases and other substances in the airflow, achieving deep air purification. Finally, the clean air filtered by the two layers of filters can smoothly enter the exhaust section 4 and then be discharged through the exhaust port 7, providing purified air with both "impurity removal" and "odor removal" effects for medical scenarios.
[0023] The dust filter 10 and activated carbon filter 11 are arc-shaped at the ends near the air outlet to increase the filtration area.
[0024] The dust filter 10 and activated carbon filter 11 feature a specific structural design: both have a rounded end near the air outlet, rather than a flat design. These two filters with rounded ends maintain a tight seal with the inner wall of the filter section 3, ensuring that airflow can fully contact the filter surface without leakage. The core function of this design is to increase the effective filtration area of the filters through the rounded ends. Compared to flat ends, the rounded structure allows for a larger surface area in contact with the airflow within the limited installation space of the filter section 3. This increases the amount of air filtered per unit time, giving impurities and harmful gases in the airflow more opportunities to come into contact with and be treated, further improving purification efficiency. Furthermore, the larger filtration area reduces the pollutant adhesion pressure per unit area of the filter, slowing down the clogging rate and extending the service life of both filters. This reduces the frequency of filter replacement in medical equipment, ensuring the long-term stable operation of the filtration system and continuously providing clean air to medical settings.
[0025] Structurally, in addition to the dust filter 10 and activated carbon filter 11, the filter section 3 also has an additional photocatalyst plate 12, which is a three-dimensional honeycomb ceramic mesh structure loaded with nano-titanium dioxide. At the same time, multiple ultraviolet lamps 13 are installed on the inner wall of the filter section 3. The fasteners 5 used to connect the three modular areas of the air inlet section 2, the filter section 3 and the exhaust section 4 are specifically a combination of bolts and nuts. In terms of its function, the photocatalyst plate 12 and the ultraviolet lamp 13 form a synergistic purification mechanism: after the airflow passes through the dust filter 10 and the activated carbon filter 11 to complete the initial removal of impurities and odors, multiple ultraviolet lamps 13 on the inner wall of the filter section 3 will be activated, and the emitted ultraviolet rays will irradiate the three-dimensional honeycomb ceramic mesh (i.e., the photocatalyst plate 12) loaded with nano-titanium dioxide, activating the nano-titanium dioxide to produce a photocatalytic reaction. This reaction can further decompose the bacteria, viruses and organic pollutants remaining in the airflow, achieving deep disinfection and purification of the air; while the bolts and nuts, as fasteners 5, can, on the one hand, tightly fix the air inlet section 2, the filter section 3 and the exhaust section 4 through threaded connection to ensure the structural stability of the entire filter housing 1, and on the other hand, ensure the sealing of the connection of each component to prevent unfiltered air from leaking from the gaps. At the same time, the detachable characteristics of the bolts and nuts are also compatible with the overall modular design, making it convenient to disassemble the equipment to replace the filter and photocatalyst plate 12, or to repair the ultraviolet lamp 13, ensuring the long-term stable operation of the medical equipment air filtration system.
[0026] The usage process of this utility model of a high-efficiency air filter structure for medical devices is as follows: After the device is started, the intake fan 8 and the exhaust fan 9 work together to form a directional airflow from the air inlet 6 to the exhaust outlet 7; the airflow first enters the filter section 3 through the air inlet 2, and passes through the dust removal filter 10 to remove solid impurities and the activated carbon filter 11 to adsorb odors and harmful gases. At the same time, the ultraviolet lamp 13 on the inner wall of the filter section 3 is activated to irradiate the three-dimensional honeycomb ceramic mesh (photocatalyst plate 12) loaded with nano-titanium dioxide, and decomposes residual bacteria and organic pollutants through photocatalytic reaction; finally, the purified air is discharged from the exhaust outlet 7 through the exhaust section 4. Later, it is necessary to remove the bolts and nuts to open the modular housing 1 and replace or repair the filter and photocatalyst plate 12 to maintain the filtration effect.
[0027] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.
Claims
1. A high-efficiency air filter structure for medical devices, comprising a housing (1), characterized in that: The housing (1) is divided into an air inlet (2), a filter (3) and an exhaust (4) in sequence along the air flow direction. The air inlet (2), the filter (3) and the exhaust (4) are fixedly connected by fasteners (5) to form a detachable modular structure. The air inlet (2) is provided with an air inlet (6) at the end away from the filter (3), and the exhaust (4) is provided with an exhaust outlet (7) at the end away from the filter (3). An air intake fan (8) is provided in the air inlet (6), and an exhaust fan (9) is provided in the exhaust outlet (7). At least one high-efficiency filter unit is provided in the filter (3). The high-efficiency filter unit is arranged along the air flow direction and is sealed to the inner wall of the filter (3). The air intake fan (8) and the exhaust fan (9) are configured to form a directional airflow channel from the air inlet (6) to the exhaust outlet (7). The airflow channel flows through the air inlet (2), the high-efficiency filter unit in the filter (3) and the exhaust (4) in sequence.
2. The high-efficiency air filter structure for medical devices according to claim 1, characterized in that: The high-efficiency filtration unit is a filtration layer provided inside the filtration section (3).
3. The high-efficiency air filter structure for medical devices according to claim 2, characterized in that: The filter layer near the air inlet (2) is a dust removal filter (10), and the filter layer near the air outlet (4) is an activated carbon filter (11).
4. The high-efficiency air filter structure for medical devices according to claim 3, characterized in that: The dust filter (10) and activated carbon filter (11) are arc-shaped at the end near the air outlet to increase the filtration area.
5. The high-efficiency air filter structure for medical devices according to claim 1, characterized in that: The filter section (3) is also provided with a photocatalyst plate (12), and multiple ultraviolet lamps (13) are provided on the inner wall of the filter section (3).
6. The high-efficiency air filter structure for medical devices according to claim 5, characterized in that: The photocatalyst plate (12) is a three-dimensional honeycomb ceramic mesh loaded with nano-titanium dioxide.
7. The high-efficiency air filter structure for medical devices according to claim 1, characterized in that: The fasteners (5) are bolts and nuts.