Efficient air filtering device for after-sales market refitting

Abstract

The utility model relates to an efficient air filtering device for after-sales market refitting, which comprises an upper shell, a lower shell and a filter element, the upper shell is fixedly connected with the lower shell, a fixing groove is arranged on the lower shell, and the fixing groove is used for placing the filter element. An air inlet is formed in the upper shell, and the air inlet is connected with a dirty air opening of a vehicle water blocking groove and used for introducing external air into the device; the lower shell is provided with an air outlet and a flange face and used for conveying filtered air into a vehicle-mounted air conditioner. The flange face is used for installing the efficient air filtering device on a vehicle, and a sealing rubber strip and an auxiliary strip are arranged on the filter element. Compared with the prior art, the device is simple in structural design, and can be additionally arranged on the basis of the replacement design of an original vehicle boundary air inlet on the basis of not damaging and modifying original vehicle parts. A sealing structure is formed by the sealing rubber strip and the side edge of the fixing groove, so that the leakage rate of the side face of the filter element is reduced, and the filtering efficiency of the air filtering device on particles smaller than PM1 is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of air filtration, in particular to a high-efficiency air filtration device for aftermarket modification. Background Art

[0002] The content of particulate pollutants in the air is the most important health indicator of air quality. Solid or liquid particles suspended in the air (regardless of long-term or short-term) are called particulate pollution because they are harmful to biological and human health. The natural sources of these particles can be caused by ground dust (dust raised by strong winds or other natural effects); earthquake ash and forest fire ash produced by volcanic eruptions; foam and sea salt particles splashed by waves; meteorite dust from the universe and biological particles such as pollen and bubbles. The man-made sources of particulate pollutants are mainly produced during production, construction and transportation, as well as during fuel combustion. For example, solid particles emitted during various industrial production processes are usually called dust; solid particles generated during fuel combustion are usually called solid particles, such as soot, fly ash, etc.; particles formed by the condensation of lead halides discharged from automobile exhaust, and secondary particles such as sulfate particles converted by artificially emitted SO2 under certain conditions.

[0003] Industrial dust refers to solid particles that can float in the air. A large amount of dust is generated in the production of many industrial sectors such as metallurgy, machinery, building materials, light industry, and electricity. The sources of dust are mainly the following: 1. Mechanical crushing and grinding of solid materials, such as the ore crushing process and various grinding processes in mineral processing and refractory workshops; 2. Mixing, screening, packaging and transportation of powdered materials, such as the production and transportation process of cement, flour, etc.; 3. Combustion of substances, such as smoke generated by coal combustion; 4. Oxidation and condensation of steam generated when substances are heated in the air, such as zinc vapor generated in ore sintering, metal smelting, etc., which will condense when cooled in the air and oxidize into solid particles of zinc oxide.

[0004] Whether it is from natural or human activities, particulate matter will cause harm to the health of animals, plants and humans. Particulate matter that falls on plant branches and leaves can cause mechanical burns and reduce the photosynthetic intensity of leaves, causing damage to plants; particulate matter dissolved in water enters plant tissues with water and causes damage; heavy metal particulate matter deposited on vegetables or feed plants enters the human or animal body through the food chain. Particles with a particle size of 3.5μm can be inhaled into the human trachea and lungs, causing respiratory diseases. Therefore, many countries have established atmospheric environmental quality standards for particulate matter to protect the health of animals, plants and humans.

[0005] Particle pollutants mainly have a greater impact on the human respiratory system. Particle pollutants of 10μm: generally blocked by the cilia in the nasal cavity and throat, they will not enter the human body, but they can cause upper respiratory tract diseases. They affect the sunshine time and ground visibility, and change the microclimate conditions in local areas. Since particle pollutants are mostly porous structures, they have a certain adsorption effect on gaseous pollution in the atmosphere, so they can migrate together with gaseous pollutants, expanding the pollution range and residence time of gaseous pollutants.

[0006] Generally speaking, particles with a size of 7 to 10 microns can enter the nasal cavity, and particles with a size of 4.7 to 7 microns can enter the throat. This stage is reversible and the human body can cough them out. However, when the particle size is 3.3 to 4.7 microns, the particles enter the trachea and bronchi; at 2.1 to 3.3 microns, the particles can enter the middle bronchi; at 1.1 to 2.1 microns, the particles enter the terminal bronchus; and below 1 micron, that is, PM1, enters the alveolar blood, which has a great impact on human health.

[0007] PM1 is a general term for solid particles or liquid droplets in the air with a diameter less than or equal to 1 micron, also known as respirable particulate matter. PM1 has a small particle size, is rich in a large number of toxic and harmful substances, and has a long residence time in the atmosphere and a long transportation distance, so it has a greater impact on human health and the quality of the atmospheric environment. The main sources of PM1 are: residues emitted through combustion during daily power generation, industrial production, and emissions, most of which contain toxic substances such as heavy metals. Generally speaking, coarse particles with a particle size of 2.5 microns to 10 microns mainly come from road dust, etc.; fine particles below 2.5 microns, PM1, mainly come from the combustion of fossil fuels.

[0008] The filter elements currently installed in vehicles on the market have a maximum filtration efficiency of 95% for PM2.5 particles, while the filtration efficiency of general filter elements is around 50%. Moreover, these filter elements have a filtration efficiency of 20%-30% for particles smaller than PM1. In addition, due to the problem of sealing, the filtering devices in the prior art cannot effectively filter harmful substances in the air entering the vehicle through the air-conditioning system.

[0009] Based on the current situation, there is an urgent need to research a high-efficiency air filter device for aftermarket modification to effectively filter harmful particles larger than 0.3 microns in the air and improve the filtration efficiency. Utility Model Content

[0010] The purpose of the utility model is to overcome the defects of the above-mentioned prior art and to provide a high-efficiency air filter device for after-sales market modification. A sealing structure is formed by a sealing strip and the side of the fixing groove to reduce the leakage on the side of the filter element. At the same time, air outlet sealing strips are provided around the flange surface, which effectively increases the filtration efficiency of the air filter device for particulate matter smaller than PM1.

[0011] The purpose of the utility model can be achieved through the following technical solutions:

[0012] The utility model provides a high-efficiency air filter device for aftermarket modification, comprising an upper shell, a lower shell and a filter element;

[0013] The upper shell is fixedly connected to the lower shell, and a fixing groove is provided on the lower shell, and the fixing groove is used to place the filter element;

[0014] The upper shell is provided with an air inlet, which is connected to the dirty air port of the vehicle water retaining tank and is used to introduce external air into the device;

[0015] The lower shell is provided with an air outlet and a flange surface, the air outlet is used to deliver filtered air to the vehicle air conditioner, the flange surface is provided with an air outlet sealing strip around it, the flange surface is used to install the high-efficiency air filter device on the vehicle; the air outlet sealing strip is used to increase the sealing performance when installed on the vehicle;

[0016] The filter element is provided with a sealing strip and an auxiliary strip, and the sealing strip forms a sealing structure with the side of the fixing groove to reduce leakage on the side of the filter element and ensure filtering efficiency.

[0017] Furthermore, the bottom of the upper shell is provided with a wedge-shaped mounting boss, and the top is provided with a screw mounting hole; the bottom of the lower shell is provided with an assembly groove, and the top is provided with a screw mounting boss;

[0018] The wedge-shaped mounting boss is cooperatively connected with the assembly groove, and the screw mounting boss is connected with the screw mounting hole through the assembly screw, so as to realize the fixing of the upper shell and the lower shell.

[0019] Furthermore, a fixing rib is provided at the bottom of the upper shell, and the fixing rib is used to guide the filter element, assist the filter element to be installed in the fixing groove, and at the same time prevent the filter element from moving after being fixed.

[0020] Furthermore, a plurality of the fixing ribs are equidistantly arranged at the bottom edge of the upper shell.

[0021] Furthermore, the auxiliary strip is arranged on one side of the filter element to facilitate replacement of the filter element.

[0022] Furthermore, the sealing strip is arranged around the filter element.

[0023] Furthermore, two fixing blocks are arranged on the flange surface, each of the two fixing blocks is provided with a mounting hole, and the fixing blocks are arranged diagonally.

[0024] Furthermore, the upper shell and the lower shell are both irregularly shaped, and the air inlet is arranged at the top of the upper shell.

[0025] Furthermore, the upper shell and the lower shell are both irregularly shaped, and the air inlet is arranged at the top of the upper shell.

[0026] Furthermore, the screw mounting boss is arranged on the fixing groove.

[0027] Compared with the prior art, the utility model has the following advantages and beneficial effects:

[0028] 1. The utility model has a simple structural design, which reduces the complexity of installing the device on the vehicle. It can be installed based on the replacement design of the boundary air inlet of the original vehicle without damaging or modifying the original vehicle parts, thereby improving customer recognition and the feasibility of system installation.

[0029] 2. The utility model has a simple structure and low unit manufacturing cost, which effectively improves the competitiveness of the product in the after-sales market.

[0030] 3. The filter element replacement method in the utility model is more convenient, which reduces the working hours and operating costs of filter element replacement; in addition, the sealing strip and the side of the fixing groove form a sealing structure to reduce the leakage on the side of the filter element. At the same time, air outlet sealing strips are provided around the flange surface, which effectively increases the filtration efficiency of the air filter device for particulate matter smaller than PM1. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 is a schematic front view of a high efficiency air filter device for aftermarket modification;

[0032] Figure 2 is a schematic side view of a high efficiency air filter device for aftermarket modification;

[0033] Figure 3 is a rear view schematic diagram of a high efficiency air filter device for aftermarket modification;

[0034] Figure 4 A schematic cross-sectional view and air flow diagram of a high-efficiency air filter device for aftermarket modification;

[0035] Figure 5 It is a schematic diagram of the structure of a high-efficiency air filter device for aftermarket modification;

[0036] Figure 6 Schematic diagram of the structure of the filter element in Example 1;

[0037] Figure 7 It is a structural schematic diagram of the upper housing in Example 1;

[0038] Figure 8 This is a schematic diagram of the structure of the lower shell in Example 1.

[0039] Figure 1 Description of the mark in:

[0040] 1- upper shell;

[0041] Figure 2 Description of the mark in:

[0042] 1-upper shell, 2-lower shell, 4-air outlet sealing strip;

[0043] Figure 3 Description of the mark in:

[0044] 3-Filter element;

[0045] Figure 4 Description of the mark in:

[0046] 12-system air inlet, 13-system air outlet, 14-fixing slot;

[0047] Figure 5 Description of the mark in:

[0048] 9-assembly screw, 12-system air inlet, 13-system air outlet;

[0049] Figure 6 Description of the mark in:

[0050] 10-sealing strip, 11-auxiliary strip;

[0051] Figure 7 Description of the mark in:

[0052] 5-wedge-shaped mounting boss, 7-screw mounting hole, 15-fixing rib;

[0053] Figure 8 Description of the mark in:

[0054] 6-assembly groove, 8-screw mounting boss, 14-fixing groove, 16-flange surface. DETAILED DESCRIPTION

[0055] The specific implementation methods of the utility model are described in detail below through examples. These examples are implemented on the premise of the scheme described in the utility model, and provide detailed implementation methods and specific operating processes, but the protection scope of the utility model is not limited to the following examples.

[0056] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments. Any features such as component models, material names, connection structures, preparation methods, materials, structures or composition ratios not clearly described in this technical solution are deemed to be common technical features disclosed in the prior art.

[0057] Example 1

[0058] This embodiment provides a high-efficiency air filter device for aftermarket modification, such as Figures 1 to 3 As shown, it includes an upper shell 1, a lower shell 2 and a filter element 3. The upper shell 1 is fixedly connected to the lower shell 2, and the lower shell 2 is provided with a fixing groove 14, and the fixing groove 14 is used to place the filter element 3; the upper shell 1 is provided with an air inlet 12, and the air inlet 12 is connected to the dirty air port of the vehicle water retaining groove, and is used to introduce external air into the device, as shown in FIG. Figure 4 and Figure 5 As shown;

[0059] like Figure 7 As shown, the bottom of the upper shell 1 is provided with a wedge-shaped mounting boss, and the top is provided with a screw mounting hole; the bottom of the lower shell 2 is provided with an assembly groove 6, and the top is provided with a screw mounting boss 8. The wedge-shaped mounting boss is connected with the assembly groove 6, and the screw mounting boss 8 is connected with the screw mounting hole through the assembly screw 9, so as to achieve the fixation of the upper shell 1 and the lower shell 2. The bottom of the upper shell 1 is also provided with a fixing rib 15, which is used to guide the filter element 3, assist the filter element 3 to be installed in the fixing groove 14, and at the same time prevent the filter element 3 from moving after the filter element 3 is fixed. Several fixing ribs 15 are equidistantly arranged at the bottom edge of the upper shell 1. The upper shell 1 and the lower shell 2 are both irregularly shaped, and the air inlet is arranged at the top of the upper shell 1. The screw mounting boss 8 is arranged on the fixing groove 14.

[0060] like Figure 8 As shown, the lower housing 2 is provided with an air outlet 13 and a flange surface 16. The air outlet 13 is used to deliver the filtered air to the vehicle air conditioner, and then the air conditioning system delivers the air into the vehicle after adjusting the temperature. The flange surface 16 is provided with an air outlet sealing strip 4 around it, and the air outlet sealing strip 4 is used to increase the sealing performance when installed on the vehicle. The flange surface 16 is used to install the high-efficiency air filter on the vehicle; the flange surface 16 is provided with two fixing blocks, each of which is provided with a mounting hole, and the fixing blocks are arranged diagonally.

[0061] The filter element 3 is provided with a sealing strip 10 and a disassembly auxiliary strip 11. Figure 6As shown, the sealing strip 10 forms a sealing structure with the side of the fixing groove 14 to reduce the leakage on the side of the filter element 3 and ensure the filtering efficiency. The disassembly auxiliary strip 11 is arranged on one side of the filter element 3 to facilitate the replacement of the filter element 3. The sealing strip 10 is arranged around the filter element 3. The filter element 3 can be customized with different resistances and different filtering efficiencies according to needs, and multiple filter elements 3 can be provided.

[0062] By filtering the air circulating outside the air conditioner, harmful particles entering the air in the car are controlled, the air quality in the car is improved, and the harm of harmful substances in the air to the driver and his passengers is reduced. The high-efficiency air filter device in this embodiment can effectively filter harmful particles in the external air by using a filter element 3 with integrated nano-filter material to solve the problem of low filtering efficiency of particles smaller than PM1 in the air conditioning system of vehicles on the market, and provide sealing strips around the docking interface of the device and the filter element 3 to reduce the leakage on the side of the filter element. At the same time, an air outlet sealing strip 4 is provided around the flange surface 16, thereby reducing the problem of decreased filtering efficiency due to leakage and improving the filtering efficiency of particles smaller than PM1.

[0063] The utility model has a simple structural design, which reduces the complexity of the installation of the device on the vehicle. It can be installed based on the replacement design of the original vehicle boundary air inlet without damaging or modifying the original vehicle parts, thereby improving customer recognition and the feasibility of system installation. The manufacturing cost of a single piece is low, which effectively improves the competitiveness of the product in the aftermarket.

[0064] The above description of the embodiments is to facilitate the understanding and use of the utility model by those skilled in the art. It is obvious that those familiar with the art can easily make various modifications to these embodiments and apply the general principles described herein to other embodiments without creative work. Therefore, the utility model is not limited to the above embodiments, and improvements and modifications made by those skilled in the art based on the disclosure of the utility model without departing from the scope of the utility model should be within the scope of protection of the utility model.

Claims

1. A high efficiency air filter device for aftermarket modification, characterized in that: It comprises an upper shell (1), a lower shell (2) and a filter element (3); The upper shell (1) is fixedly connected to the lower shell (2); a fixing groove (14) is provided on the lower shell (2); the fixing groove (14) is used to place the filter element (3); The upper shell (1) is provided with an air inlet (12), and the air inlet (12) is connected to the dirty air outlet of the water retaining groove of the vehicle, and is used to introduce external air into the device; The lower housing (2) is provided with an air outlet (13) and a flange surface (16), the air outlet (13) being used to deliver filtered air to the vehicle air conditioner, the flange surface (16) being provided with an air outlet sealing strip (4) around it, and the flange surface (16) being used to install the high-efficiency air filter device on the vehicle; The filter element (3) is provided with a sealing strip (10) and an auxiliary strip (11), and the sealing strip (10) forms a sealing structure with the side edge of the fixing groove (14) to reduce leakage from the side of the filter element (3) and ensure filtering efficiency.

2. A high efficiency air filter device for aftermarket modification according to claim 1, characterized in that: The bottom of the upper shell (1) is provided with a wedge-shaped mounting boss, and the top is provided with a screw mounting hole; the bottom of the lower shell (2) is provided with a mounting groove (6), and the top is provided with a screw mounting boss (8); The wedge-shaped mounting boss is cooperatively connected with the assembly groove (6), and the screw mounting boss (8) is connected with the screw mounting hole via the assembly screw (9), thereby achieving the fixation of the upper shell (1) and the lower shell (2).

3. A high efficiency air filter device for aftermarket modification according to claim 1, characterized in that: The bottom of the upper shell (1) is also provided with a fixing rib (15), the fixing rib (15) being used to guide the filter element (3), assisting the filter element (3) in being installed in the fixing groove (14), and at the same time preventing the filter element (3) from moving after the filter element (3) is fixed.

4. A high efficiency air filter device for aftermarket modification according to claim 3, characterized in that: A plurality of the fixing ribs (15) are equidistantly arranged at the bottom edge of the upper shell (1).

5. A high efficiency air filter device for aftermarket modification according to claim 1, characterized in that: The auxiliary strip (11) is arranged on one side of the filter element (3) to facilitate replacement of the filter element (3).

6. A high efficiency air filter device for aftermarket modification according to claim 1, characterized in that: The sealing rubber strip (10) is arranged around the filter element (3).

7. A high efficiency air filter device for aftermarket modification according to claim 1, characterized in that: Two fixing blocks are provided on the flange surface (16), each of the two fixing blocks is provided with a mounting hole, and the fixing blocks are arranged diagonally.

8. The high efficiency air filter device for aftermarket modification according to claim 1, characterized in that: The upper shell (1) and the lower shell (2) are both irregularly shaped, and the air inlet is arranged at the top of the upper shell (1).

9. A high efficiency air filter device for aftermarket modification according to claim 2, characterized in that: The screw mounting boss (8) is arranged on the fixing groove (14).

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