Automobile activated carbon air conditioner filter

Abstract

The utility model discloses a kind of automobile activated carbon air conditioner filter, belong to air purification technical field.Filter cleaner includes shell, and the layered filtering mechanism, self-cleaning mechanism and supply mechanism being set in shell.Layered filtering mechanism is scraped by self-cleaning mechanism through the gear of motor drive and rack engagement, drive the scraping plate slidingly connected with brush layer, automatically scrape the impurity of filter screen on layered filtering mechanism and make it fall into dust collecting groove.Supply mechanism is opened and closed by rotating runner control valve core, so that activated carbon in supply bin is replenished to the activated carbon filter layer of layered filtering mechanism through guide pipe.The utility model integrates self-cleaning and supply function in filter cleaner, solve the problem that filter screen is easy to block in prior art, activated carbon is easy to saturate and must be frequently manually disassembled and replaced, realize the automatic cleaning of filter screen and the online replenishment of activated carbon filter material, effectively prolong the overall service life of filter cleaner, and significantly reduce maintenance cost.

Description

Technical Field

[0001] This utility model relates to the field of air purification technology, and in particular to an activated carbon air conditioning filter for automobiles. Background Technology

[0002] As a key component of the car's air conditioning and ventilation system, the automotive cabin air filter is primarily responsible for filtering the air entering the vehicle's interior. It effectively intercepts dust, pollen, smoke, and other solid particles from the air. Simultaneously, its internal activated carbon filter layer adsorbs odors and volatile harmful gases such as formaldehyde and benzene, aiming to provide a clean and healthy driving environment for occupants.

[0003] In practical use, existing automotive activated carbon cabin air filters generally suffer from fixed structures and limited functionality. Their filtration performance relies primarily on the physical filter screen and activated carbon filter layer. Over time, the filter screen gradually becomes clogged due to the continuous trapping of impurities, leading to increased airflow resistance in the air conditioning system and decreased cooling or heating efficiency.

[0004] At the same time, the adsorption capacity of activated carbon filter layers is limited. Once activated carbon reaches adsorption saturation, it will lose its ability to purify harmful gases and can no longer provide effective protection.

[0005] Whether it's a clogged filter or activated carbon failure, the only solution with current technology is to remove the entire cabin air filter from the vehicle and replace it entirely. This not only leads to high maintenance costs but also requires frequent manual disassembly and reassembly by the owner, which is inconvenient and cannot meet the needs for long-term, low-maintenance use.

[0006] Therefore, this utility model proposes an activated carbon air conditioning filter for automobiles to overcome the shortcomings of the prior art. Summary of the Invention

[0007] In view of the problems of existing automotive activated carbon air conditioning filters, such as easy clogging of the filter screen and easy adsorption saturation of the activated carbon filter layer, which leads to a decrease in filtration effect and the need for frequent manual disassembly and replacement, resulting in inconvenient maintenance and high cost, this utility model aims to provide an automotive activated carbon air conditioning filter with an improved structure that can effectively solve the above problems.

[0008] This utility model provides an activated carbon air conditioning filter for automobiles, comprising: a housing; a layered filtration mechanism installed inside the housing, the layered filtration mechanism including an activated carbon filter layer and a filter screen; This utility model also includes a self-cleaning mechanism and a replenishment mechanism.

[0009] The self-cleaning mechanism includes a scraper, a brush layer, a dust discharge port, a dust collection trough, and a drive assembly. The scraper is slidably connected to the inner groove of the outer casing, the brush layer is fixedly connected to the scraper and adheres to the filter screen, the dust discharge port is opened at the bottom of the outer casing, and the dust collection trough is pivotally connected to the outer casing and communicates with the dust discharge port. The drive assembly includes a rack fixed to the inner side of the outer casing, a motor fixedly connected to the scraper, and a gear rotatably connected to the scraper. The motor drives the gear to rotate, and the gear meshes with the rack, causing the scraper to slide along the inner groove.

[0010] The replenishment mechanism includes a replenishment chamber, a guide tube, a valve body, a valve core, and a rotary wheel. The replenishment chamber is connected to the activated carbon filter layer through the guide tube. The valve body is fixed in the middle of the guide tube, the valve core is rotatably installed in the valve body, and the rotary wheel is coaxially connected to the valve core to control the opening and closing of the replenishment mechanism.

[0011] Preferably, the layered filtration mechanism further includes filter paper; the filter paper and activated carbon filter layer are disposed inside the housing, and the filter screen is embedded and fixed to the housing through the mounting port of the housing to form a complete filtration unit.

[0012] Preferably, the filter paper, activated carbon filter layer, and filter screen are arranged sequentially along the path of the outside air flowing into the outer casing; this step-by-step filtration structure allows the air to first be intercepted by the filter paper to block large particles, then by the activated carbon filter layer to adsorb harmful gases, and finally by the filter screen to filter fine particles, thereby improving the filtration efficiency and the number of filtration stages.

[0013] Preferably, the dust collection trough is an openable and closable structure; the dust collection trough is pivotally connected to the bottom of the outer casing, which facilitates periodic opening to empty the impurities collected by the self-cleaning mechanism.

[0014] Preferably, the rotor of the replenishment mechanism is exposed outside the valve body; this configuration allows the user to operate the rotor directly from the outside without disassembling the filter to control the opening and closing of the valve core and replenish the activated carbon.

[0015] Preferably, the valve core has a through hole that matches the guide tube; the rotation of the valve core is used to control the connection or disconnection between the through hole and the guide tube, thereby precisely controlling the fall of activated carbon in the replenishment chamber.

[0016] Preferably, when the scraper slides along the inner groove, the brush layer scrapes away the impurities from the filter screen, and the impurities fall into the dust collection tank through the ash discharge port under the action of gravity; the path design ensures that the cleaned impurities can be effectively collected, avoiding secondary pollution.

[0017] Preferably, the rack of the drive assembly is fixed to one side of the inner groove; this arrangement ensures that the gear rotatably connected to the scraper can maintain stable engagement with the rack throughout the entire sliding process of the scraper, thus ensuring the reliability of the self-cleaning mechanism transmission.

[0018] This utility model has the following beneficial effects: 1. This utility model, by setting a self-cleaning mechanism, uses a motor to drive a gear and a rack to mesh, which drives a scraper with a fixed brush layer to slide along a groove, automatically scraping off and collecting impurities on the filter screen; it solves the problems of easy clogging of the filter screen, the need for manual disassembly and cleaning, and inconvenient maintenance in the prior art; it achieves the technical effects of automatic cleaning, prevention of clogging, and extension of the filter's service life.

[0019] This invention, by setting up a replenishment mechanism, utilizes a replenishment chamber, a guide tube, and a controllable valve core and valve body structure; it solves the problems in the prior art where activated carbon filter layers fail after adsorption saturation, requiring complete replacement of the filter element and resulting in high operating costs; it achieves the technical effect of online replenishment of activated carbon, extending the service life of the filter layer, and avoiding frequent replacements.

[0020] This invention, by setting up a layered filtration mechanism, allows air to pass through filter paper, activated carbon filter layer and filter screen in sequence, and makes the mechanism work in conjunction with the self-cleaning mechanism and the replenishment mechanism; it solves the problems of single function and unclear filtration levels in the prior art; and achieves the technical effects of step-by-step fine filtration, high degree of integration and guaranteed continuous filtration effect. Attached Figure Description

[0021] Figure 1 This is a three-dimensional schematic diagram of an activated carbon air conditioning filter for automobiles proposed in this utility model; Figure 2 This is a schematic diagram of the scraper structure of an activated carbon air conditioning filter for automobiles proposed in this utility model; Figure 3 This is a schematic diagram of the structure of the filter screen of an automotive activated carbon air conditioning filter proposed in this utility model; Figure 4 This is a schematic diagram of the valve core of an automotive activated carbon air conditioning filter proposed in this utility model; Figure 5 for Figure 2 Enlarged view of point A in the middle.

[0022] Legend: 1. Outer shell; 2. Self-cleaning mechanism; 21. Scraper; 22. Brush layer; 23. Dust discharge port; 24. Dust collection trough; 25. Drive assembly; 251. Gear; 252. Rack; 253. Motor; 3. Supply mechanism; 31. Guide tube; 32. Supply bin; 33. Valve body; 34. Valve core; 35. Rotary wheel; 4. Layered filtration mechanism; 41. Filter paper; 42. Activated carbon filter layer; 43. Filter screen. Detailed Implementation

[0023] Example: Reference Figures 1 to 5 This utility model provides an activated carbon air conditioning filter for automobiles, which aims to solve the problems of filter screen blockage, reduced filtration effect and frequent manual disassembly and replacement after activated carbon filter layer adsorption saturation in automobile air conditioning filters.

[0024] like Figure 1 As shown, the automotive activated carbon air conditioning filter includes a housing 1, which serves as a mounting base. A layered filtration mechanism 4 is installed inside the housing 1. The layered filtration mechanism 4 includes an activated carbon filter layer 42 and a filter screen 43. The filter also integrates a self-cleaning mechanism 2 and a replenishment mechanism 3. The self-cleaning mechanism 2 works in conjunction with the layered filtration mechanism 4 to achieve automatic cleaning, and the replenishment mechanism 3 communicates with the layered filtration mechanism 4 to replenish the filter media. Reference Figure 1 , Figure 2 and Figure 5 The self-cleaning mechanism 2 includes a scraper 21, a brush layer 22, a dust discharge port 23, a dust collection trough 24, and a drive assembly 25. The scraper 21 is slidably connected to the inner groove of the outer casing 1. The brush layer 22 is fixedly connected to the scraper 21 and makes it adhere to the surface of the filter screen 43. The dust discharge port 23 is opened at the bottom of the outer casing 1. The dust collection trough 24 is pivotally connected to the outer casing 1 and communicates with the dust discharge port 23 to collect impurities. The drive assembly 25 is used to drive the scraper 21 to slide back and forth. The drive assembly 25 includes a rack 252 fixed to the inner side of the outer casing 1, a motor 253, and a gear 251. The motor 253 is fixedly connected to the scraper 21. The gear 251 is rotatably connected to the scraper 21. The motor 253 drives the gear 251 to rotate. When the gear 251 rotates, it meshes with the rack 252, thereby driving the scraper 21 to slide along the inner groove.

[0025] Reference Figure 1 and Figure 4 The replenishment mechanism 3 is described in detail below. It replenishes the activated carbon filter layer 42 after it becomes saturated with adsorption. The replenishment mechanism 3 includes a replenishment chamber 32, a guide tube 31, a valve body 33, a valve core 34, and a rotating wheel 35. The replenishment chamber 32 stores new activated carbon particles and is connected to the activated carbon filter layer 42 of the layered filtration mechanism 4 via the guide tube 31. The valve body 33 is fixed to the middle of the guide tube 31, and the valve core 34 is rotatably disposed inside the valve body 33. The valve core 34 has a through hole adapted to the guide tube 31. The rotating wheel 35 is coaxially connected to the valve core 34 and is exposed outside the valve body 33. When replenishment is needed, rotating the rotating wheel 35 drives the valve core 34 to rotate, controlling the connection or disconnection between the through hole on the valve core 34 and the guide tube 31, allowing the activated carbon in the replenishment chamber 32 to fall into the activated carbon filter layer 42. Reference Figure 1 and Figure 3The layered filtration mechanism 4 is described below. The layered filtration mechanism 4 includes filter paper 41, activated carbon filter layer 42, and filter screen 43. Filter paper 41 and activated carbon filter layer 42 are disposed inside the outer casing 1. Filter screen 43 is embedded and installed on the outer casing 1 through the mounting opening. The filter paper 41, activated carbon filter layer 42, and filter screen 43 are arranged sequentially along the path of outside air flowing into the outer casing 1. Air first passes through the filter paper 41 to filter large particulate impurities, then passes through the activated carbon filter layer 42 to adsorb harmful gases, and finally passes through the filter screen 43 to filter fine particles and bacteria. In a preferred embodiment, the dust collection trough 24 is an openable and closable structure, which is pivotally connected to the outer casing 1, making it easy to open and empty the impurities falling in through the ash discharge port 23. When the self-cleaning mechanism 2 is working, the motor 253 drives the gear 251 to rotate. The gear 251 meshes with the rack 252, causing the scraper 21 to slide along the inner groove. The brush layer 22 fixed on the scraper 21 moves accordingly and scrapes off the impurities on the surface of the filter screen 43. Under the action of gravity, the impurities fall into the dust collection tank 24 through the ash discharge port 23. To ensure stable transmission, the rack 252 is fixed to one side of the inner groove.

[0026] As a preferred embodiment, please refer to Figure 1 and Figure 3 In order to achieve progressively fine filtration, the layered filtration mechanism 4 also includes filter paper 41. Filter paper 41 and activated carbon filter layer 42 are disposed inside the housing 1. Filter screen 43 is embedded in the housing 1 through the mounting port of the housing 1. Filter paper 41, activated carbon filter layer 42 and filter screen 43 are arranged sequentially along the path of outside air flowing into the housing 1, with air passing through filter paper 41 preferentially.

[0027] As a preferred embodiment, in order to facilitate the cleaning of collected impurities, the dust collection tank 24 is an openable and closable structure, which is pivotally connected to the bottom of the housing 1, allowing it to be opened and closed.

[0028] As a preferred embodiment, please refer to Figure 1 and Figure 4 To facilitate operation of the supply mechanism 3, the rotary wheel 35 is designed to be exposed outside the valve body 33, allowing the user to rotate it directly from the outside.

[0029] In a preferred embodiment, in order to realize the opening and closing control of the supply chamber 32, the valve core 34 has a through hole adapted to the guide tube 31. The rotation of the valve core 34 controls the connection or disconnection between the through hole and the guide tube 31, thereby precisely controlling the falling of activated carbon.

[0030] In a preferred embodiment, in order to ensure effective collection of cleaning impurities, when the scraper 21 slides along the inner groove, the brush layer 22 scrapes off the impurities from the filter screen 43, and the impurities fall into the dust collection tank 24 along the path of the ash discharge port 23 under the action of gravity.

[0031] In a preferred embodiment, to ensure the stability of the drive assembly 25 transmission engagement, the rack 252 is fixed to one side of the inner slide groove, so that the gear 251 always maintains engagement with the rack 252 during reciprocating motion.

[0032] The working principle is as follows: When outside air enters the outer casing 1, the air is arranged along the path of outside air flowing into the outer casing 1. In the layered filtration mechanism 4, the air first passes through the filter paper 41, which intercepts large particles of impurities such as sand and gravel. The airflow then passes through the activated carbon filter layer 42, which adsorbs harmful gases. Finally, the airflow passes through the filter screen 43, which filters fine particles and bacteria. The purified air then enters the vehicle.

[0033] When too many impurities accumulate on the surface of the filter screen 43, the self-cleaning mechanism 2 is activated, the drive assembly 25 operates, and the motor 253 fixed to the scraper 21 drives the gear 251 to rotate. Since the gear 251 meshes with the rack 252 fixed to the inside of the housing 1, the rotation of the gear 251 drives the scraper 21 and the brush layer 22 fixed thereon to slide along the inner groove. During the sliding process, the brush layer 22 adheres to and scrapes away the impurities on the surface of the filter screen 43. Under the action of gravity, the impurities fall into the dust collection tank 24 through the ash discharge port 23 opened at the bottom of the housing 1. The dust collection tank 24 can be opened and closed for easy emptying.

[0034] When the adsorption capacity of the activated carbon filter layer 42 decreases and needs to be replenished, the operator rotates the wheel 35 exposed on the valve body 33. The wheel 35 coaxially drives the valve core 34 to rotate inside the valve body 33. The through hole inside the valve core 34 is aligned with the guide tube 31, and the replenishment mechanism 3 is opened. The new activated carbon stored in the replenishment chamber 32 falls into the activated carbon filter layer 42 through the guide tube 31 and the through hole of the valve core 34, completing the replenishment.

Claims

1. An automotive activated carbon air conditioning filter, comprising: Outer shell (1); A layered filtration mechanism (4) is installed inside the housing (1). The layered filtration mechanism (4) includes an activated carbon filter layer (42) and a filter screen (43). Its characteristic is that it further includes: The self-cleaning mechanism (2) includes a scraper (21), a brush layer (22), a dust discharge port (23), a dust collection tank (24), and a drive assembly (25). The scraper (21) is slidably connected to the inner groove of the outer shell (1). The brush layer (22) is fixedly connected to the scraper (21) and adheres to the filter screen (43). The dust discharge port (23) is opened at the bottom of the outer shell (1). The dust collection tank (24) is pivotally connected to the outer shell (1) and communicates with the dust discharge port (23). The drive assembly (25) includes a rack (252) fixed to the inner side of the outer shell (1), a motor (253) fixedly connected to the scraper (21), and a gear (251) rotatably connected to the scraper (21). The motor (253) drives the gear (251) to rotate. The gear (251) meshes with the rack (252). The replenishment mechanism (3) includes a replenishment chamber (32), a guide tube (31), a valve body (33), a valve core (34), and a rotating wheel (35). The replenishment chamber (32) is connected to the activated carbon filter layer (42) through the guide tube (31). The valve body (33) is fixed in the middle of the guide tube (31). The valve core (34) is rotatably disposed in the valve body (33). The rotating wheel (35) is coaxially connected to the valve core (34).

2. The automotive activated carbon air conditioning filter according to claim 1, characterized in that, The layered filtration mechanism (4) further includes filter paper (41); the filter paper (41) and the activated carbon filter layer (42) are disposed inside the outer shell (1), and the filter screen (43) is embedded in the outer shell (1) through the mounting port of the outer shell (1).

3. The automotive activated carbon air conditioning filter according to claim 2, characterized in that, The filter paper (41), the activated carbon filter layer (42), and the filter screen (43) are arranged sequentially along the path through which outside air flows into the outer shell (1).

4. The automotive activated carbon air conditioning filter according to claim 1, characterized in that, The dust collection trough (24) is an openable and closable structure.

5. The automotive activated carbon air conditioning filter according to claim 1, characterized in that, The impeller (35) is exposed outside the valve body (33).

6. The automotive activated carbon air conditioning filter according to claim 1 or 5, characterized in that, The valve core (34) has a through hole that matches the guide tube (31). The valve core (34) rotates to control the connection or disconnection between the through hole and the guide tube (31).

7. The automotive activated carbon air conditioning filter according to claim 1, characterized in that, When the scraper (21) slides along the inner groove, the brush layer (22) scrapes off the impurities of the filter screen (43), and the impurities fall into the dust collection tank (24) through the ash discharge port (23) under the action of gravity.

8. The automotive activated carbon air conditioning filter according to claim 1, characterized in that, The rack (252) is fixed to one side of the inner groove.

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