Automobile air conditioner filter for air purification

Abstract

The invention provides an automobile air conditioner filter for air purification and relates to the technical field of filters, the automobile air conditioner filter for air purification comprises an outer frame, a mounting plate is slidably connected to the interior of the outer frame, and a filter plate is fixedly connected to the surface of the side, away from the outer frame, of the mounting plate; an air bag is fixedly connected to the interior of the outer frame, a reset spring is fixedly connected to the interior of the air bag, a sliding block is slidably connected to the interior of the mounting plate, a cleaning mechanism is arranged on the side face of the sliding block and comprises a supporting rod, and a brush is fixedly connected to the bottom of the supporting rod; the filter plate deforms under the action of air pressure when being blocked, at the moment, the trigger mechanism starts to work, the cleaning mechanism is driven by the sliding plate to circularly clean the surface of the filter plate, impurities on the surface of the filter plate are pushed and swept to the two sides of the filter plate, and therefore the purposes that ventilation in the center of the filter plate can be kept smooth; and the smooth ventilation effect of the air conditioner filter is maintained.

Description

Technical Field

[0001] This invention relates to the field of filter technology, and more particularly to an automotive air conditioning filter for air purification. Background Technology

[0002] The car air conditioning filter is a key component for ensuring the air quality inside the car. Its core function is to filter dust, pollen, PM2.5 and other particulate matter from the air entering the car.

[0003] However, existing filters generally have the following problems: during long-term use, a large amount of dust and debris will accumulate on the filter surface, especially in spring and autumn. Larger pieces of material such as leaves and willow catkins are prone to clogging the filter, resulting in a decrease in air intake and a reduction in the efficiency of air conditioning cooling or heating. When traditional filters are clogged, car owners or maintenance personnel need to manually disassemble, clean or replace them. They do not have an automatic cleaning function and cannot remove the blockages on the filter surface in real time during normal vehicle operation, resulting in a continuous decline in their filtration performance. Summary of the Invention

[0004] This invention solves the problems mentioned in the background art by automatically cleaning and ensuring smooth ventilation.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: an automotive air conditioning filter for air purification, comprising an outer frame, an mounting plate slidably connected inside the outer frame, a filter plate fixedly connected to the surface of the mounting plate away from the outer frame, an airbag fixedly connected inside the outer frame, a return spring fixedly connected inside the airbag, a slider slidably connected inside the mounting plate, and a cleaning mechanism provided on the side of the slider; The cleaning mechanism includes a support rod, a brush is fixedly connected to the bottom of the support rod, a connecting block is fixedly connected to the end of the support rod, a rotating shaft is rotatably connected to the side wall of the connecting block, and a cutting block is fixedly connected to the surface of the rotating shaft.

[0006] Preferably, the mounting plate has a movable cavity on the surface away from the filter plate, a triggering mechanism is provided inside the movable cavity, an air groove is provided on the side of the mounting plate near the movable cavity, a telescopic bladder is fixedly connected to the side wall of the slider, and a dustproof plate is fixedly connected to the side of the slider away from the telescopic bladder.

[0007] Preferably, the triggering mechanism includes a movable block, an air pump is fixedly connected to the center of the movable block, an air hole is opened inside the movable block, a one-way air valve is rotatably connected inside the air hole, an ejector spring is fixedly connected to the bottom of the movable block, and a pressure switch is fixedly connected to the surface of the movable cavity near the movable block.

[0008] Preferably, the filter plate has two layers, upper and lower, and the filter plate has a folded structure that is bent vertically. A single filter plate is a combination of multiple filter screens. The outer frame is a square frame with a hollow center, and the two sides of the filter plate are fixedly connected to the inner surface of the outer frame.

[0009] Preferably, the inner ends of the outer frame are provided with T-shaped grooves, the mounting plate is a T-shaped block, the airbag is located inside the outer frame, and the end away from the inner side wall of the outer frame is fixedly connected to the side wall surface of the mounting plate, and the two ends of the reset spring are fixedly connected to the inner side wall of the outer frame and the side wall of the mounting plate, respectively.

[0010] Preferably, the support rod is a curved V-shaped rod, the curvature of which is the same as the curvature of the protruding part of the filter plate, and the brush is attached to the surface of the filter plate and is made of nylon.

[0011] Preferably, the connecting block is fixedly connected to the surfaces at both ends of the support rod, and both ends of the rotating shaft are rotatably connected to the connecting block, so that the support rods on both sides are linked and located on the same vertical plane.

[0012] Preferably, the movable cavity is in communication with the interior of the airbag, and the end of the movable cavity away from the airbag is in communication with the air groove.

[0013] Preferably, the two ends of the air hole are respectively connected to the air bladder and the air groove, and the one-way air valve faces the side of the air bladder, and the air groove is connected to the telescopic bladder.

[0014] Preferably, the mounting plate has an internal power supply, one end of the pressure switch is connected to the power supply, and the other end is connected to the air pump via a wire.

[0015] Compared with the prior art, the advantages and positive effects of the present invention are as follows: 1. In this invention, when the filter plate becomes clogged, it deforms under air pressure. At this time, the triggering mechanism starts working and drives the cleaning mechanism through the sliding plate to clean the surface of the filter plate repeatedly. This pushes the impurities on the surface of the filter plate to both sides of the filter plate, thereby maintaining smooth ventilation in the center of the filter plate and ensuring smooth ventilation of the air conditioning filter. This high-tech solution forms a self-powered, self-sensing, and purely mechanical cleaning structure that can accurately sense the actual clogging state of the filter element and complete efficient cleaning using its own energy only in this state. The filter element clogging state is directly converted into driving force, realizing on-demand cleaning, avoiding ineffective operation and energy waste. It also uses the air pressure potential energy generated by the fan itself as an energy source, achieving energy self-sufficiency and internal circulation. The whole structure forms an integrated structure with high reliability and low cost.

[0016] 2. In this invention, the support rod in the cleaning mechanism is designed in a V-shape to match the curvature of the filter plate, ensuring that the brush can closely fit the surface of the filter plate. The cutting block on the rotating shaft can effectively break up larger flaky blockages such as leaves. It effectively targets the complex geometry of the folded filter element, achieving simultaneous cleaning of the plane and the gaps. The effect is far superior to that of a single brush, thereby ensuring that the air conditioning system always works at its best efficiency, reducing energy waste, significantly extending the service life of the filter, and reducing the frequency and cost of disassembling, cleaning, and replacing the filter for users. Attached Figure Description

[0017] Figure 1 This invention provides a frontal perspective view of the overall structure of a device used in an automotive air conditioning filter for air purification. Figure 2 This invention provides a frontal perspective view of the filter plate and cleaning mechanism in an automotive air conditioning filter for air purification. Figure 3 This invention provides a cross-sectional planar structural diagram of a filter plate and a cleaning mechanism in an automotive air conditioning filter for air purification. Figure 4 This invention provides a frontal three-dimensional structural diagram of the end of the outer frame in an automotive air conditioning filter for air purification. Figure 5 This invention proposes a filter for use in automotive air conditioning filters for air purification. Figure 3 A magnified structural diagram at point A; Figure 6 This invention provides a frontal perspective view of a cleaning mechanism for use in an automotive air conditioning filter for air purification. Figure 7 This invention provides a planar front view of the filter plate and cleaning mechanism in an automotive air conditioning filter for air purification. Figure 8 This invention provides a front cross-sectional planar structural diagram of the outer frame and triggering mechanism in an automotive air conditioning filter for air purification. Figure 9 This invention provides a front sectional plan view of a triggering mechanism for use in an automotive air conditioning filter for air purification. Figure 10 This invention proposes a filter for use in automotive air conditioning filters for air purification. Figure 9 A magnified structural diagram at point B.

[0018] Legend: 1. Outer frame; 2. Mounting plate; 3. Filter plate; 4. Airbag; 5. Return spring; 6. Slider; 7. Cleaning mechanism; 701. Support rod; 702. Brush; 703. Connecting block; 704. Rotating shaft; 705. Cutting block; 8. Movable chamber; 9. Triggering mechanism; 901. Movable block; 902. Air pump; 903. Air hole; 904. One-way air valve; 905. Ejection spring; 906. Pressure switch; 10. Air groove; 11. Telescopic bladder; 12. Dustproof plate. Detailed Implementation

[0019] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be further described below in conjunction with the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0020] Numerous specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways than those described herein, and therefore the invention is not limited to the specific embodiments disclosed in the following specification.

[0021] The overall technical solution provides a device for cleaning complex folded filter screens within a limited space. This device requires no external power, automatically triggers based on the degree of clogging, and can deeply clean the folded seams. Figure 1-2 As shown, an automotive air conditioning filter for air purification includes an outer frame 1, an mounting plate 2 slidably connected inside the outer frame 1, and a filter plate 3 fixedly connected to the surface of the mounting plate 2 away from the outer frame 1. The filter plate 3 has two layers, upper and lower, and is a folded structure with up and down bending. Each filter plate 3 is a multi-layer filter combination. The outer frame 1 is a hollow square frame. The two sides of the filter plate 3 are fixedly connected to the inner surface of the outer frame 1. Activated carbon is sandwiched in the middle of the multi-layer filter of the filter plate 3, which can filter the air blown by the air conditioner and adsorb impurities in the air. like Figure 3-4 As shown, an airbag 4 is fixedly connected inside the outer frame 1, such as... Figure 4 As shown, a return spring 5 is fixedly connected inside the airbag 4. T-shaped grooves are opened inside both ends of the outer frame 1. The mounting plate 2 is a T-shaped block. The airbag 4 is located inside the outer frame 1, and one end away from the inner side wall of the outer frame 1 is fixedly connected to the side wall surface of the mounting plate 2. The two ends of the return spring 5 are fixedly connected to the inner side wall of the outer frame 1 and the side wall of the mounting plate 2 respectively, so that the mounting plate 2 can slide inside the outer frame 1. The length and width of the mounting plate 2 are the same as the length and width of the inner groove of the outer frame 1. The air blown out by the air conditioner needs to be filtered by the filter plate 3 and will not flow out from the gap between the two. While the mounting plate 2 slides inside the groove, it needs to overcome the elastic force of the return spring 5 and will press the airbag 4. like Figure 3As shown in the figure, a slider 6 is slidably connected inside the mounting plate 2. A cleaning mechanism 7 is provided on the side of the slider 6, so that the cleaning mechanism 7 can slide along the surface of the mounting plate 2 under the action of the slider 6.

[0022] like Figure 5-6 As shown, the cleaning mechanism 7 includes a support rod 701, a brush 702 is fixedly connected to the bottom of the support rod 701, and a connecting block 703 is fixedly connected to the end of the support rod 701. The support rod 701 is a bent V-shaped rod, and the curvature of the support rod 701 is the same as the curvature of the protruding part of the filter plate 3. The brush 702 is attached to the surface of the filter plate 3 and is made of nylon. When the support rod 701 slides under the action of the slider 6, the brush 702 cleans the dirt stuck on the surface of the filter plate 3. like Figure 5 As shown, the side wall of the connecting block 703 is rotatably connected to the rotating shaft 704. The connecting block 703 is fixedly connected to the surfaces at both ends of the support rod 701. Both ends of the rotating shaft 704 are rotatably connected to the connecting block 703, so that the support rods 701 on both sides are linked and located on the same vertical plane. The filter plate 3 has a curved and folded structure, and multiple support rods 701 with the same curvature are located on the surface of the filter plate 3. Multiple support rods 701 are combined into an integral structure through the connection of the connecting block 703 and the rotating shaft 704. At this time, the support rods 701 move together to clean the entire surface of the filter plate 3. like Figure 6-7 As shown, a cutting block 705 is fixedly connected to the surface of the rotating shaft 704. The cutting block 705 can crush larger pieces of material located in the folded gap of the filter plate 3 when the support rod 701 moves. When leafy debris or other flaky objects from the outside enter the filter along with the blower mechanism, they will block the surface of the filter plate 3 and affect the air intake effect. At this time, the cutting block 705 decomposes and crushes the flaky objects, and pushes the crushed debris to both sides of the filter through the brush 702 to keep the air in the center of the filter unobstructed.

[0023] like Figure 8 As shown, a movable cavity 8 is provided on the surface of the mounting plate 2 away from the filter plate 3. A triggering mechanism 9 is provided inside the movable cavity 8. The triggering mechanism 9 includes a movable block 901. The movable cavity 8 is a T-shaped groove, and the movable block 901 is a T-shaped block. The diameter of the movable block 901 is the same as the diameter of the movable cavity 8, so that the movable block 901 can block the movable cavity 8 and prevent the air inside the airbag 4 from flowing directly into the air groove 10. like Figure 9-10As shown, an air pump 902 is fixedly connected to the center of the movable block 901. An air hole 903 is opened inside the movable block 901. A one-way air valve 904 is rotatably connected inside the air hole 903. The two ends of the air hole 903 are respectively connected to the air bag 4 and the air groove 10. The one-way air valve 904 faces the side of the air bag 4. The air groove 10 is connected to the telescopic bag 11. The air inside the telescopic bag 11 can enter the interior of the air hole 903 through the air groove 10 and enter the interior of the air bag 4 through the one-way air valve 904, realizing the one-way flow of air from the telescopic bag 11 to the air bag 4. like Figure 10 As shown, a push-out spring 905 is fixedly connected to the bottom of the movable block 901, and a pressure switch 906 is fixedly connected to the surface of the movable cavity 8 near the movable block 901. An internal power supply is provided inside the mounting plate 2. One end of the pressure switch 906 is connected to the power supply, and the other end is connected to the air pump 902 through a wire. When the pressure inside the airbag 4 increases, the air pressure inside the movable block 901 is less than the air pressure inside the airbag 4. At this time, the movable block 901 moves towards the bottom of the movable cavity 8 under the action of air pressure and presses the pressure switch 906 at the bottom. At this time, the air pump 902 starts to work, inputting the air inside the airbag 4 into the air groove 10, and then inputting it into the interior of the telescopic bladder 11 through the air groove 10. like Figure 9 As shown, the mounting plate 2 has an air groove 10 on the side near the movable cavity 8. The movable cavity 8 is connected to the interior of the airbag 4. The end of the movable cavity 8 away from the airbag 4 is connected to the air groove 10. The air groove 10 is connected to the telescopic bladder 11, so that the air in the air groove 10 can flow into the interior of the telescopic bladder 11. When the telescopic bladder 11 is pressed, the air inside the telescopic bladder 11 can re-enter the interior of the airbag 4 through the air groove 10. like Figure 9 As shown, a telescopic bladder 11 is fixedly connected to the side wall of the slider 6, and a dustproof plate 12 is fixedly connected to the side of the slider 6 away from the telescopic bladder 11. There are two telescopic bladders 11, which are fixedly connected to both sides of the slider 6 respectively. The slider 6 slides by the extension and retraction of the telescopic bladder 11.

[0024] Working principle: When the surface of filter plate 3 becomes clogged, filter plate 3 deforms under air pressure, pushing the mounting plates 2 on both sides. The mounting plates 2 are pushed into the outer frame 1. At this time, the mounting plates 2 (or, in a preferred embodiment, a sensitive differential pressure sensing diaphragm is installed on the mounting plates 2) activate when the pressure difference across the filter reaches a set threshold, triggering a microswitch to start the air pump 902. That is, when the pressure difference across the filter plate 3 reaches the preset threshold, the differential pressure sensing diaphragm will deform. The deformation of the differential pressure sensing diaphragm can directly push a built-in microswitch... After the switch is turned on, the air pump 902 is directly started to press the airbag 4. The air pressure inside the airbag 4 increases. At this time, the amount of air inside the telescopic bladder 11 on the right side of the slider 6 is small, and the air pressure inside the air groove 10 is small. The right movable block 901 moves under the action of the air pressure of the airbag 4, slides into the interior of the movable cavity 8, and presses the pressure switch 906 at the bottom. The air pump 902 starts to work, drawing the air inside the airbag 4 into the air groove 10 on the right side and into the telescopic bladder 11. The telescopic bladder 11 on the right side expands, pushing the slider 6 to move to the left. A support rod 701 is fixedly connected to the side wall of the slider 6. The brush 702 at the bottom of the support rod 701 cleans the surface of the filter plate 3. The cutting block 705 on the surface of the rotating shaft 704 breaks the leaf fragments on the surface of the filter plate 3, thereby cleaning the surface of the filter plate 3 and sweeping the impurities on the surface of the filter plate 3 to both sides of the filter plate 3, keeping the center of the surface of the filter plate 3 breathable. When slider 6 moves to the left, the air pressure inside the right telescopic bladder 11 is equal to the air pressure inside the air bladder 4. Because the left telescopic bladder 11 is compressed, air enters the air hole 903 through the air groove 10 and enters the air bladder 4 through the one-way air valve 904. At this time, the air pressure inside the left telescopic bladder 11 decreases, the left movable block 901 is pressed, the pressure switch 906 is pressed, the left air pump 902 starts to work, inflating the left telescopic bladder 11, and slider 6 moves to the right, thus realizing the left and right reciprocating motion of slider 6. The support rod 701 reciprocates on the surface of the filter plate 3. Through the repeated cleaning of the brush 702, the surface of the filter plate 3 is cleaned, avoiding the filter plate 3 from being blocked, and the air can flow smoothly. When the air flows smoothly, the filter plate 3 returns to its original state, the mounting plate 2 does not press the air bladder 4, and the cleaning mechanism 7 also stops working.

[0025] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the protection scope of the present invention.

Claims

1. A car air conditioning filter for air purification, characterized in that: Includes an outer frame (1), an installation plate (2) is slidably connected inside the outer frame (1), a filter plate (3) is fixedly connected to the surface of the installation plate (2) away from the outer frame (1), an air bag (4) is fixedly connected inside the outer frame (1), a return spring (5) is fixedly connected inside the air bag (4), a slider (6) is slidably connected inside the installation plate (2), and a cleaning mechanism (7) is provided on the side of the slider (6). The cleaning mechanism (7) includes a support rod (701), a brush (702) is fixedly connected to the bottom of the support rod (701), a connecting block (703) is fixedly connected to the end of the support rod (701), a rotating shaft (704) is rotatably connected to the side wall of the connecting block (703), and a cutting block (705) is fixedly connected to the surface of the rotating shaft (704).

2. The automotive air conditioning filter for air purification according to claim 1, characterized in that: The mounting plate (2) has an active cavity (8) on the side away from the filter plate (3). The active cavity (8) is equipped with a triggering mechanism (9). The mounting plate (2) has an air groove (10) on the side near the active cavity (8). The slider (6) has a telescopic bladder (11) fixedly connected to its side wall. The slider (6) has a dustproof plate (12) fixedly connected to the side away from the telescopic bladder (11).

3. The automotive air conditioning filter for air purification according to claim 2, characterized in that: The triggering mechanism (9) includes a movable block (901), an air pump (902) is fixedly connected to the center of the movable block (901), an air hole (903) is opened inside the movable block (901), a one-way air valve (904) is rotatably connected inside the air hole (903), an ejector spring (905) is fixedly connected to the bottom of the movable block (901), and a pressure switch (906) is fixedly connected to the surface of the movable cavity (8) near the movable block (901).

4. The automotive air conditioning filter for air purification according to claim 2, characterized in that: The filter plate (3) has two layers, and the filter plate (3) is a folded structure that is bent up and down. A single filter plate (3) is a multi-layer filter screen combination. The outer frame (1) is a square frame with a hollow center. The two sides of the filter plate (3) are fixedly connected to the inner surface of the outer frame (1).

5. The automotive air conditioning filter for air purification according to claim 1, characterized in that: The outer frame (1) has T-shaped grooves inside both ends. The mounting plate (2) is a T-shaped block. The airbag (4) is located inside the outer frame (1), and one end away from the inner side wall of the outer frame (1) is fixedly connected to the side wall surface of the mounting plate (2). The two ends of the reset spring (5) are fixedly connected to the inner side wall of the outer frame (1) and the side wall of the mounting plate (2) respectively.

6. The automotive air conditioning filter for air purification according to claim 2, characterized in that: The support rod (701) is a bent V-shaped rod. The curvature of the support rod (701) is the same as the curvature of the protruding part of the filter plate (3). The brush (702) is attached to the surface of the filter plate (3) and is made of nylon.

7. The automotive air conditioning filter for air purification according to claim 2, characterized in that: The connecting block (703) is fixedly connected to the surfaces at both ends of the support rod (701), and the two ends of the rotating shaft (704) are rotatably connected to the connecting block (703), so that the support rods (701) on both sides are linked and located on the same vertical plane.

8. The automotive air conditioning filter for air purification according to claim 3, characterized in that: The active cavity (8) is connected to the interior of the airbag (4), and the end of the active cavity (8) away from the airbag (4) is connected to the air groove (10).

9. The automotive air conditioning filter for air purification according to claim 3, characterized in that: The two ends of the air hole (903) are connected to the air bag (4) and the air groove (10) respectively, and the one-way air valve (904) faces the side of the air bag (4). The air groove (10) is connected to the telescopic bag (11).

10. The automotive air conditioning filter for air purification according to claim 3, characterized in that: The mounting plate (2) is equipped with an internal power supply. One end of the pressure switch (906) is connected to the power supply, and the other end is connected to the air pump (902) via a wire.

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