Air filtering device

Abstract

The utility model discloses an air filtering device which comprises a shell, an air inlet, an air outlet, an air inlet and an air outlet. The drawer is slidably arranged in the mounting cavity, a first air inlet is formed in the drawer, and the first air inlet communicates with the opening; the filtering assembly is arranged in the drawer; the door holder switch is arranged on the bottom wall, opposite to the opening, in the mounting cavity, and the door holder switch has a locking state and an unlocking state; the buckle is arranged on one side, close to the door holder switch, of the drawer; in the locking state, the door holder switch clamps the buckle to fix the drawer; in the unlocking state, the door holder switch releases the buckle and pops up the drawer towards the opening. According to the technical scheme, the technical problem that a filter material of an existing air purifier is inconvenient to disassemble and assemble is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of air purification, and particularly relates to an air filtering device. Background Art

[0002] In the existing structure of air purifiers, the filter media are often directly installed inside the air purifier and fixed by means such as snap connection. This structure makes it necessary to disassemble the purifier when replacing the filter media, and the replacement process is very inconvenient. Content of the Utility Model

[0003] The main purpose of the utility model is to provide an air filtering device, aiming to solve the technical problem of inconvenient disassembly of the filter media of the existing air purifiers.

[0004] To achieve the above purpose, an air filtering device proposed by the utility model includes:

[0005] A housing, having an installation cavity with a side opening and an air outlet communicating with the installation cavity;

[0006] A drawer, slidably disposed in the installation cavity, the drawer being provided with a first air inlet, and the first air inlet communicating with the opening;

[0007] A filtering assembly, disposed in the drawer;

[0008] A door latch switch, disposed on the bottom wall of the installation cavity opposite to the opening, the door latch switch having a locked state and an unlocked state;

[0009] A buckle, disposed on one side of the drawer close to the door latch switch;

[0010] Wherein, in the locked state, the door latch switch clamps the buckle to fix the drawer; in the unlocked state, the door latch switch releases the buckle and ejects the drawer towards the opening.

[0011] Optionally, a second air inlet is provided on the bottom wall of the installation cavity, and a third air inlet is provided on one side of the drawer close to the bottom wall, and the second air inlet communicates with the third air inlet, so that external air flows into the installation cavity from the first air inlet and the second air inlet respectively.

[0012] Optionally, the filtering assembly includes:

[0013] A sterilizer, disposed in the drawer and close to the third air inlet;

[0014] An activated carbon filter medium, disposed in the drawer and close to the first air inlet;

[0015] A HEPA filter material is provided between the sterilizer and the activated carbon filter material, so that external air flow enters the HEPA filter material after passing through the sterilizer and the activated carbon filter material respectively.

[0016] Optionally, the sterilizer has a contact, and the air filtration device further includes an elastic electrode, the elastic electrode is arranged on the bottom wall, and the elastic electrode elastically abuts against and is electrically connected to the contact.

[0017] Optionally, a first support rib protrudes from the side wall and / or the bottom wall of the drawer, the first support rib extends along the sliding direction of the drawer, and the first support rib is slidably connected to the inner wall of the installation cavity.

[0018] Optionally, the sterilizer is an ultraviolet sterilizer, and a plurality of light-shielding bodies protrude inside the drawer, the plurality of light-shielding bodies are arranged between the sterilizer and the HEPA filter material and are spaced apart from each other, and the light-shielding bodies are used to block ultraviolet rays.

[0019] Optionally, a second support rib protrudes inside the drawer, and the second support rib is used for clamping and fixing the filter assembly.

[0020] Optionally, the air filtration device further includes a fan, and the fan is arranged in the installation cavity and on the side of the drawer facing the air outlet.

[0021] Optionally, the air filtration device further includes a filter screen, and the filter screen is provided at at least one of the first air inlet, the second air inlet and the air outlet.

[0022] Optionally, the air filtration device further includes:

[0023] A power supply;

[0024] A normally open switch, the normally open switch is arranged in the installation cavity, and the normally open switch is electrically connected to the power supply;

[0025] An abutting body protrudes from the side wall of the drawer; wherein, in the locked state, the abutting body abuts against and closes the normally open switch to turn on the power supply; in the unlocked state, the abutting body disengages from and opens the normally open switch to turn off the power supply.

[0026] Compared with the prior art, in the technical solution of the present utility model, the air filtration device includes a housing having an installation cavity with a side opening, and the housing is further provided with an air outlet communicating with the installation cavity. In addition, a drawer is slidably provided in the installation cavity, and the drawer has a first air inlet communicating with the opening, so that external air can enter the installation cavity through the first air inlet and be discharged from the air outlet. In addition, a filtration component is provided in the drawer to filter the air entering the installation cavity and then discharge it from the air outlet to complete the air purification process. In addition, a door latch switch is further provided in the installation cavity, and the door latch switch is disposed on the bottom wall of the installation cavity opposite to the opening. The door latch switch has a locked state and an unlocked state. In addition, a buckle is provided on one side of the drawer close to the door latch switch. In the locked state, the door latch switch is locked and fixed with the buckle, and at this time the drawer is fixed, and the air filtration device can perform normal filtration. In the unlocked state, the door latch switch can release the buckle and push the drawer towards the opening direction, and at this time the drawer can be taken out of the installation cavity, which is convenient for replacing the filtration component. In this technical solution, the sliding setting of the drawer facilitates the removal of the filtration component. In addition, the cooperation of the buckle and the door latch switch facilitates the fixing and removal of the drawer, making the replacement of the filtration component more convenient and improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0028] Figure 1 is a schematic structural diagram of the air filtration device of the present utility model;

[0029] Figure 2 is another schematic structural diagram of the air filtration device of the present utility model;

[0030] Figure 3 is still another schematic structural diagram of the air filtration device of the present utility model;

[0031] Figure 4 is still another schematic structural diagram of the air filtration device of the present utility model.

[0032] DESCRIPTION OF THE REFERENCE NUMERALS IN THE DRAWINGS:

[0033]

[0034] The realization of the purpose, functional features and advantages of the present utility model will be further described with reference to the embodiments and the drawings. Detailed implementation mode

[0035] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the protection scope of the present utility model.

[0036] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present utility model are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If this specific posture changes, the directional indication will also change accordingly.

[0037] In the present utility model, unless otherwise clearly defined and limited, terms such as "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0038] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present utility model, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" can explicitly or implicitly include at least one of such features. In addition, the meaning of "and / or" appearing throughout the text includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or the solution where A and B are satisfied simultaneously. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present utility model.

[0039] In order to solve the technical problem of inconvenient replacement of the filter material of the existing air purifier, the present technical solution proposes an air filtering device, including:

[0040] A housing 100 having an installation cavity with a side opening and an air outlet communicating with the installation cavity;

[0041] The drawer 200 is slidably disposed in the installation cavity. The drawer 200 is provided with a first air inlet, and the first air inlet is communicated with the opening.

[0042] The filter assembly 300 is disposed in the drawer 200.

[0043] The door latch switch 400 is disposed on the bottom wall of the installation cavity opposite to the opening. The door latch switch 400 has a locked state and an unlocked state.

[0044] The buckle 500 is disposed on one side of the drawer 200 close to the door latch switch 400.

[0045] Wherein, in the locked state, the door latch switch 400 clamps the buckle 500 to fix the drawer 200; in the unlocked state, the door latch switch 400 releases the buckle 500 and ejects the drawer 200 towards the opening.

[0046] Compared with the prior art, in the technical solution of the present utility model, the air filtering device includes a housing 100. The housing 100 has an installation cavity with an opening on the side. The housing 100 is further provided with an air outlet communicated with the installation cavity. In addition, a drawer 200 is slidably disposed in the installation cavity. The drawer 200 has a first air inlet, and the first air inlet is communicated with the opening, so that external air can enter the installation cavity through the first air inlet and be discharged from the air outlet. In addition, a filter assembly 300 is disposed in the drawer 200. The filter assembly 300 filters the air entering the installation cavity and then discharges it from the air outlet to complete the air purification process. In addition, a door latch switch 400 is further disposed in the installation cavity. The door latch switch 400 is disposed on the bottom wall of the installation cavity opposite to the opening. The door latch switch 400 has a locked state and an unlocked state. In addition, a buckle 500 is disposed on one side of the drawer 200 close to the door latch switch 400. In the locked state, the door latch switch 400 is locked and fixed with the buckle 500. At this time, the drawer 200 is fixed, and the air filtering device can perform normal filtering. In the unlocked state, the door latch switch 400 can release the buckle 500 and push the drawer 200 towards the opening direction. At this time, the drawer 200 can be taken out of the installation cavity, which is convenient for replacing the filter assembly 300. In this technical solution, the sliding setting of the drawer 200 facilitates the removal of the filter assembly 300. In addition, the cooperation between the buckle 500 and the door latch switch 400 facilitates the fixing of the drawer 200 and the removal of the drawer 200, making the replacement of the filter assembly 300 more convenient and improving the user experience.

[0047] Specifically, as shown in the figure, the air filtration device in this solution can be used as a vehicle air filter or a desktop air filter. The air filtration device includes a housing 100 with a hollow interior forming an installation cavity. An opening is provided on the side of the housing 100, and an air outlet communicating with the installation cavity is provided on the top of the housing 100. The air filtration device further includes a drawer 200 which is in a box structure. The outer dimensions of the drawer 200 are adapted to the installation cavity. The drawer 200 is slidably arranged in the installation cavity and can be pulled out or inserted into the installation cavity. In addition, a first air inlet is provided on the side wall of the drawer 200 facing the opening, and the first air inlet communicates with the interior of the drawer 200. External air can enter the installation cavity through the first air inlet and be discharged from the air outlet. In order to achieve air purification, a filtration component 300 is provided in the drawer 200. The filtration component 300 can be conventional filter materials such as activated carbon or HEPA cotton. After the external air enters the installation cavity, it is filtered by the filtration component 300 to achieve air purification. In addition, a door latch switch 400 is provided on the bottom wall of the installation cavity opposite to the opening. The door latch switch 400 is a common switch model on the market that is locked or opened by pressing. In addition, a buckle 500 protrudes from the side wall of the drawer 200 close to the door latch switch 400. The door latch switch 400 has a locked state and an unlocked state. When the drawer 200 is inserted into the installation cavity, by pushing the drawer 200, the buckle 500 presses the door latch switch 400 to achieve the clamping between the door latch switch 400 and the buckle 500. At this time, the drawer 200 is fixed, and this state is the locked state. When the drawer 200 needs to be pulled out, push the drawer 200 so that the buckle 500 presses the door latch switch 400 again. At this time, the door latch switch 400 is in the open unlocked state, and the door latch switch 400 will exert a reaction force on the buckle 500 to eject the drawer 200 from the opening. In the structure of this air filtration device, the replacement of the filter material only requires pulling out the drawer 200, and the opening and closing of the drawer 200 can be achieved through the cooperation of the buckle 500 and the door latch switch 400, which facilitates the removal of the drawer 200 and the replacement of the filter material, and is beneficial to improving the user experience.

[0048] Further, a second air inlet is provided on the bottom wall of the installation cavity, and a third air inlet is provided on the side of the drawer 200 close to the bottom wall. The second air inlet communicates with the third air inlet so that external air flows into the installation cavity from the first air inlet and the second air inlet respectively.

[0049] In order to improve the efficiency of air purification, a second air inlet can be provided on the bottom wall of the installation cavity, and a third air inlet communicating with the second air inlet can be provided on the side wall of the drawer 200 close to the bottom wall. In this way, external air flow can not only enter the installation cavity through the first air inlet, but also enter the installation cavity through the second air inlet for filtration, increasing the flow rate of the air flow of this air filtration device, thereby improving the efficiency of air purification.

[0050] Furthermore, the filtering component 300 includes:

[0051] A sterilizer 310, which is disposed in the drawer 200 and is close to the third air inlet;

[0052] An activated carbon filter medium 320, which is disposed in the drawer 200 and is close to the first air inlet;

[0053] A HEPA filter medium 330, which is disposed between the sterilizer 310 and the activated carbon filter medium 320, so that the external air flow enters the HEPA filter medium 330 after passing through the sterilizer 310 and the activated carbon filter medium 320 respectively.

[0054] As shown in the figure, in this solution, the filtering component 300 includes a sterilizer 310, an activated carbon filter medium 320, and a HEPA filter medium 330. Among them, the sterilizer 310 is close to the third air inlet, the activated carbon filter medium 320 is close to the first air inlet, and the HEPA filter medium 330 is disposed between the sterilizer 310 and the activated carbon filter medium 320. The air entering from the second air inlet can be sterilized by the sterilizer 310 and then filtered by the HEPA filter medium 330, while the air entering from the first air inlet can be deodorized by the activated carbon filter medium 320 and then filtered by the HEPA filter medium 330. In this way, while improving the air purification efficiency, the sterilization and deodorization of the air are also achieved.

[0055] Furthermore, the sterilizer 310 has contacts, and the air filtering device further includes an elastic electrode 800. The elastic electrode 800 is disposed on the bottom wall and is elastically abutted against and electrically connected to the contacts. A contact structure is provided on the side of the sterilizer 310 facing the third air inlet. The contact can be a metal electrode for connecting to an external power supply to supply power to the sterilizer 310. In addition, the air filtering device further includes an elastic electrode 800. The elastic electrode 800 is disposed on the bottom wall of the installation cavity. The elastic electrode 800 can be a pogo pin or a metal spring sheet structure. When the drawer 200 is inserted into the installation cavity, the elastic electrode 800 can be elastically abutted against and electrically connected to the contacts. In this way, a stable connection between the elastic electrode 800 and the contacts can be ensured, preventing the sterilizer 310 from losing power due to the shaking of the air filter. In addition, when the drawer 200 needs to be taken out, the elastic electrode 800 can apply a force towards the opening direction to the drawer 200, making the drawer 200 easier to pop out and facilitating the removal of the drawer 200.

[0056] Further, a first support rib 210 protrudes from the side wall and / or the bottom wall of the drawer 200. The first support rib 210 extends along the sliding direction of the drawer 200, and the first support rib 210 is slidably connected to the inner wall of the installation cavity. To facilitate the pulling of the drawer 200, the first support rib 210 structure can protrude from both the side wall and the bottom wall of the drawer 200. The first support rib 210 can extend along the sliding direction of the drawer 200, and the first support rib 210 is slidably connected to the inner wall of the installation cavity. In this way, the side wall and the bottom wall of the drawer 200 can be disengaged from the inner wall of the installation cavity, thereby reducing the friction when the drawer 200 is pulled, making the drawer 200 easier to pull.

[0057] Further, the sterilizer 310 is an ultraviolet sterilizer. A plurality of light-shielding bodies 230 protrude from the inside of the drawer 200. The plurality of light-shielding bodies 230 are arranged between the sterilizer 310 and the HEPA filter 330 and are spaced apart from each other. The light-shielding bodies 230 are used to block ultraviolet rays. As shown in the figure, in this solution, the sterilizer 310 is an ultraviolet sterilizer. Using such a sterilizer 310 can make the air entering the second air inlet fully exposed to ultraviolet rays, making the sterilization more thorough. In addition, a light-shielding body 230 also protrudes from the inside of the drawer 200. The light-shielding body 230 can be a ribbed plate structure. The light-shielding body 230 is arranged between the sterilizer 310 and the HEPA filter 330. A plurality of light-shielding bodies 230 can be provided, and the plurality of light-shielding bodies 230 are spaced apart from each other. In this way, the ultraviolet rays irradiating the HEPA filter 330 can be blocked by the plurality of light-shielding bodies 230, preventing the HEPA filter 330 from aging due to ultraviolet irradiation, which is beneficial to extending the service life of the HEPA filter 330. In addition, the light-shielding bodies 230 being spaced apart from each other also ensures that air can smoothly enter the HEPA filter 330 from the sterilizer 310, ensuring the filtration efficiency.

[0058] Further, a second support rib 220 protrudes from the inside of the drawer 200. The second support rib 220 is used to clamp and fix the filter assembly 300. To facilitate the installation and fixation of the filter assembly 300, the second support rib 220 can protrude from the inner wall of the drawer 200. The second support rib 220 can protrude from all the bottom walls of the inner cavity of the drawer 200. When the filter assembly 300 is placed in the drawer 200, the second support rib 220 can clamp the side wall of the filter assembly 300 to fix the filter assembly 300. In addition, the second support rib 220 can also provide support for the filter assembly 300 to ensure that the position of the filter assembly 300 is fixed after it is installed in the drawer 200.

[0059] Further, the air filtering device further includes a fan 600 disposed in the installation cavity and on the side of the drawer 200 facing the air outlet. As shown in the figure, a fan 600 is also provided in the installation cavity. The fan 600 can be disposed on the side of the drawer 200 facing the air outlet. The fan 600 can generate an air flow toward the air outlet. By providing the fan 600, the air flow rate in the installation cavity can be increased, thereby improving the air filtering efficiency.

[0060] Further, the air filtering device further includes a filter screen 700, and at least one of the first air inlet, the second air inlet, and the air outlet is provided with the filter screen 700. As shown in the figure, in this solution, the filter screen 700 can be provided at the first air inlet, the second air inlet, and the air outlet. The filter screen 700 can be made of a metal material and can be fixed by an adhesive bonding method. The setting of the filter screen 700 can block larger foreign objects outside from entering the installation cavity, prevent the internal filter assembly 300 from being blocked, and also prevent people from inserting their hands into the installation cavity, realizing the protection of personnel.

[0061] Further, the air filtering device further includes:

[0062] A power supply;

[0063] A normally open switch disposed in the installation cavity and electrically connected to the power supply;

[0064] An abutting body 240 protruding from the side wall of the drawer 200; wherein, in the locked state, the abutting body 240 abuts against and closes the normally open switch to turn on the power supply; in the unlocked state, the abutting body 240 disengages from and opens the normally open switch to turn off the power supply.

[0065] Specifically, as shown in the figure, in order to improve the use safety of the air filtering device, the air filtering device further includes a power supply, which can be electrically connected to internal electronic devices such as the fan 600 and the sterilizer 310 through a power cord. A normally open switch is also provided in the installation cavity. The normally open switch can adopt common specifications and models on the market and is electrically connected to the power supply. When the normally open switch is in the open state, the circuit between the power supply and the electronic devices in the air filtering device will be opened, and at this time, the air filtering device is in a power-off state. Only when the normally open switch is closed can the power supply supply power to the internal electronic devices, and at this time, the air filtering device can work normally; in addition, the air filtering device further includes an abutting body 240 protruding from the side wall of the drawer 200. When in the locked state, the drawer 200 is inserted into the installation cavity. At this time, the abutting body 240 abuts against and closes the normally open switch, and the air filtering device works normally. When the filter material needs to be replaced, the drawer 200 is pulled out. At this time, the abutting body 240 disengages from the normally open switch, the normally open switch is opened, and the air filtering device is powered off. In this way, it can be ensured that the air filtering device is always in a power-off state when the drawer 200 is pulled out, improving the use safety of the air filtering device.

[0066] The above are only optional embodiments of the present utility model, and do not limit the patent scope of the present utility model accordingly. Any equivalent structural transformation made by using the content of the specification and drawings of the present utility model under the inventive concept of the present utility model, or any direct / indirect application in other related technical fields shall be included within the patent protection scope of the present utility model.

Claims

1. An air filter device, characterized in that: include: A housing having a mounting cavity with a side opening and an air outlet communicating with the mounting cavity; A drawer is slidably disposed in the installation cavity, the drawer is provided with a first air inlet, and the first air inlet is communicated with the opening; A filter assembly is arranged in the drawer; A door catch switch is arranged on a bottom wall of the installation cavity opposite to the opening, and the door catch switch has a locked state and an unlocked state; A buckle, arranged on a side of the drawer close to the door buckle switch; Wherein, in the locked state, the door buckle switch clamps the buckle to fix the drawer; in the unlocked state, the door buckle switch releases the buckle and pops the drawer toward the opening.

2. The air filter device according to claim 1, characterized in that: A second air inlet is provided on the bottom wall of the installation cavity, and a third air inlet is provided on a side of the drawer close to the bottom wall. The second air inlet is connected to the third air inlet so that external air flows into the installation cavity from the first air inlet and the second air inlet respectively.

3. The air filter device according to claim 2, characterized in that: The filter assembly comprises: A sterilizer, disposed in the drawer and close to the third air inlet; An activated carbon filter material is disposed in the drawer and close to the first air inlet; The HEPA filter material is arranged between the sterilizer and the activated carbon filter material, so that the external airflow passes through the sterilizer and the activated carbon filter material respectively and then enters the HEPA filter material.

4. The air filter device according to claim 3, characterized in that: The sterilizer has a contact, and the air filter device further comprises an elastic electrode, which is arranged on the bottom wall and elastically abuts against the contact and is conductively connected thereto.

5. The air filter device according to claim 1, characterized in that: A first supporting rib is protrudingly provided on the side wall of the drawer and / or the bottom wall of the drawer. The first supporting rib extends along the sliding direction of the drawer, and the first supporting rib is slidably connected to the inner wall of the installation cavity.

6. The air filter device according to claim 3, characterized in that: The sterilizer is an ultraviolet sterilizer. A plurality of light shielding bodies are protrudingly provided in the drawer. The plurality of light shielding bodies are arranged between the sterilizer and the HEPA filter material and are arranged at intervals from each other. The light shielding bodies are used to block ultraviolet rays.

7. The air filter device according to claim 1, characterized in that: A second supporting rib is protrudingly provided in the drawer, and the second supporting rib is used for clamping and fixing the filter assembly.

8. The air filter device according to claim 1, characterized in that: The air filtering device further comprises a fan, which is arranged in the installation cavity and located on a side of the drawer facing the air outlet.

9. The air filter device according to claim 2, characterized in that: The air filter device further comprises a filter screen, and at least one of the first air inlet, the second air inlet and the air outlet is provided with the filter screen.

10. The air filter device according to claim 1, characterized in that: The air filter device also includes: power supply; A normally open switch, the normally open switch is disposed in the mounting cavity, and the normally open switch is electrically connected to the power supply; An abutment body is protruding from the side wall of the drawer; wherein, in the locked state, the abutment body abuts against and closes the normally open switch to turn on the power supply; in the unlocked state, the abutment body disengages from and opens the normally open switch to turn off the power supply.

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