Filtering device, disassembling method thereof and range hood

Abstract

The invention provides a filtering device and a disassembling method thereof and a range hood, and the filtering device comprises a first shell which forms a containing cavity with a first opening; the filtering assembly is detachably arranged in the accommodating cavity and divides the accommodating cavity into a first cavity body and a second cavity body communicated with the first opening; the filtering assembly is configured to filter fluid entering the second cavity from the first opening into the first cavity; the second shell and the first shell are arranged in a sliding mode, and the second shell is provided with a second opening; when the second shell, the filtering assembly and the first shell are in an assembled state, the second opening is communicated with the first opening, and at least part of the second shell extends into the second cavity and abuts against the side, facing the second cavity, of the filtering assembly. The filter assembly can be detached and cleaned, and the technical problem that in the prior art, the cleaning effect on the filter assembly is poor is solved.

Description

Filter devices and their disassembly methods, range hoods Technical Field

[0001] This application relates to the field of grease filtration technology, specifically to a filtration device and its disassembly method, and a range hood. Background Technology

[0002] Filtering devices for grease filtration are used to separate grease from gas, or to separate grease from impurities in fluids. During grease filtration, gas in the fluid can pass through the filter element, while grease adheres to it; alternatively, grease can pass through the filter element, while impurities adhere to it. In related technologies, the design of the filtering device prevents direct contact with all areas of the filter element during cleaning, hindering thorough cleaning and resulting in poor cleaning effectiveness. Summary of the Invention

[0003] In view of the above problems, this application provides a filtration device and its disassembly method, as well as a range hood, to solve the technical problem of poor cleaning effect of the filtration components in the prior art.

[0004] To solve the above-mentioned technical problems, the technical solution adopted in this application is conceived as follows:

[0005] In a first aspect, this application provides a filtering device, comprising: a first housing forming a receiving cavity with a first opening; a filtering assembly detachably disposed within the receiving cavity, dividing the receiving cavity into a first chamber and a second chamber communicating with the first opening; the filtering assembly being configured to filter fluid entering the second chamber from the first opening into the first chamber; a second housing slidably disposed with the first housing, and the second housing having a second opening; when the second housing, the filtering assembly, and the first housing are in an assembled state, the second opening communicates with the first opening, and the second housing at least partially extends into the second chamber and abuts against the side of the filtering assembly facing the second chamber.

[0006] The sliding direction between the second housing and the first housing is perpendicular to the arrangement direction of the receiving cavity and the first opening.

[0007] Wherein, the size of the filter assembly along the first direction is smaller than the size of the first opening along the first direction, and the size of the filter assembly along the second direction perpendicular to the first direction is smaller than the size of the first opening along the second direction; wherein, both the first direction and the second direction are perpendicular to the arrangement direction of the receiving cavity and the first opening.

[0008] Wherein, along the arrangement direction of the receiving cavity and the first opening, the end of the second opening is located on top of the end of the first opening, and the end of the second opening covers the end of the first opening and the end of the filter assembly facing the first opening.

[0009] The first housing has a first opening at its top and a slide rail or a slide groove extending in the sliding direction at one end of the first sidewall of the first housing near the first opening. The second housing has a second opening at its top and a slide rail or a slide groove extending in the sliding direction at one end of the second sidewall of the second housing near the second opening. The slide rail and slide groove are slidably connected to realize the loading and unloading between the second housing and the first housing.

[0010] The slide groove penetrates the end face and side face of the first side wall, and the included angle between the two groove walls along the sliding direction is an acute angle; the slide groove penetrates at least one third side wall of the first housing, and the third side wall is adjacent to the first side wall; the slide rail has two guide surfaces that are respectively matched with the two groove walls.

[0011] The connection between the first sidewall and the third sidewall is chamfered.

[0012] The first housing has a mounting portion on the third sidewall facing the receiving cavity. When the second housing and the first housing are assembled, the filter assembly is installed in the mounting portion.

[0013] The third sidewall of the first housing has a groove that connects the receiving cavity and the first opening. The side of the groove has a mounting platform facing the first opening. The mounting platform serves as a mounting part to support the filter assembly.

[0014] The filter assembly includes two filter elements, which are spaced apart and symmetrically arranged along a second direction. The second direction is perpendicular to the sliding direction and the arrangement direction of the receiving cavity and the first opening. The distance between the ends of the two filter elements near the first opening is greater than the distance between the ends of the two filter elements away from the first opening. The two second sidewalls of the second housing extending along the sliding direction are respectively provided with first through holes, which correspond to the filter elements. The outer edge of the filter element is sealed to the outer peripheral area of ​​the corresponding first through hole.

[0015] The second housing also has a bottom wall connected to one end of the two second side walls away from the second opening, and the bottom wall has a second through hole communicating with the second opening.

[0016] One of the first sidewalls is provided with a ventilation hole that communicates with the receiving cavity, and the bottom of the ventilation hole protrudes from the bottom of the first housing towards the first opening, for forming a liquid collection cavity at the bottom of the first housing.

[0017] The end of the second opening is provided with a sliding marking section.

[0018] Secondly, this application provides a method for disassembling a filter device, which includes: separating the second housing from the first housing along a sliding direction to detach the second housing from the first housing; and removing the filter assembly from the receiving cavity through a first opening.

[0019] Thirdly, this application provides a range hood that includes the aforementioned filter device, or a method for disassembling the aforementioned filter device.

[0020] The advantages of the embodiments of this application, which differ from the prior art, are as follows: This application provides a filtering device and its disassembly method, as well as a range hood. The filtering device includes a first housing, a filtering assembly, and a second housing. The first housing forms a receiving cavity with a first opening. The filtering assembly is detachably disposed in the receiving cavity and divides the receiving cavity into a first cavity and a second cavity communicating with the first opening. The filtering assembly is configured to filter fluid entering the second cavity from the first opening into the first cavity. The second housing is slidably disposed with respect to the first housing, and the second housing has a second opening. When the second housing, the filtering assembly, and the first housing are in an assembled state, the second opening communicates with the first opening, and the second housing extends at least partially into the second cavity and abuts against the side of the filtering assembly facing the second cavity. By detachably housing the filter assembly within the receiving cavity, and slidably aligning the second housing with the first housing, and when the second housing, filter assembly, and first housing are assembled, the second housing extends at least partially into the second cavity and abuts against the side of the filter assembly facing the second cavity. On one hand, the second housing secures the filter assembly, reducing the risk of displacement, deformation, or detachment due to airflow impact or vibration, and preventing unfiltered fumes from entering the first cavity. This not only improves the stability and filtration effect of the filter assembly but also reduces the risk of abnormal noise caused by displacement, deformation, or detachment, thereby enhancing the quietness and reliability of the filtration device and improving the user experience. On the other hand, when cleaning the filter assembly is required, the second housing can be detached from the first housing along the sliding direction, allowing the filter assembly to be removed from the receiving cavity through the first opening. This facilitates thorough cleaning of the filter assembly, improving its cleaning effect and thus solving the technical problem of poor cleaning performance. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, wherein:

[0022] Figure 1 is a schematic diagram of an embodiment of the filtration device provided in this application;

[0023] Figure 2 is an exploded structural diagram of the first housing and the filter assembly in the filter device provided in this application;

[0024] Figure 3 is a schematic diagram of the structure of the first housing and the filter assembly in the filter device provided in this application;

[0025] Figure 4 is a schematic diagram of an embodiment of the filtration device provided in this application in which the first housing and the second housing cooperate;

[0026] Figure 5 is a side view of an embodiment of the filtering device provided in this application;

[0027] Figure 6 is a top view of an embodiment of the filtering device provided in this application. Detailed Implementation

[0028] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. It is understood that the specific embodiments described herein are only for explaining this application and not for limiting it. Furthermore, it should be noted that, for ease of description, only the parts related to this application are shown in the accompanying drawings, not all structures. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0029] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0030] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0031] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0032] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0033] Please refer to Figure 1, which is a schematic diagram of an embodiment of the filtration device provided in this application. This application provides a filtration device 100. The filtration device 100 can be applied to grease filtration equipment, which includes edible oil filtration equipment, grease separators, oil-water separators, grease dewaxing and refining machines, range hoods, etc., but is not limited to these. The following description uses the application of grease filtration equipment in a range hood as an example.

[0034] The filter device 100 can be applied to a range hood, which filters oil fumes and other fluids. The fluids include liquids such as rice water and vegetable soup, solids such as grease and dust, and / or gases. The range hood is designed to at least purify the kitchen environment. During use, grease, dust, and other solids adhere to the filter assembly 20, while gases and liquids can pass through. The filter device 100 has a drive mechanism on its ventilation holes 12a and / or exhaust channels, which directs the gases and liquids out of the kitchen through the ventilation holes 12a and exhaust channels. This drive mechanism can be a fan, exhaust fan, or electric pump, but is not limited to these. Separating oil fumes and other fluids through the filter assembly 20 not only prevents grease, dust, and other solids from adhering to the inner walls of the ventilation holes 12a and exhaust channels and / or the drive mechanism, or from clogging the ventilation holes 12a and / or exhaust channels, thereby improving the range hood's suction efficiency and lifespan, but also prevents grease leakage and reduces pollution.

[0035] Range hoods include, but are not limited to, downdraft range hoods, top-mounted range hoods, side-mounted range hoods, and dual-suction (top and side) range hoods. Downdraft range hoods are installed below the cooktop and can be concealed within cabinets, effectively saving kitchen space. Top-mounted range hoods are installed above the cooktop and have excellent smoke collection capabilities. Side-mounted range hoods are installed above and to the side of the cooktop. Dual-suction range hoods combine the advantages of both top-mounted and side-mounted range hoods, and are installed both above and to the side of the cooktop. This application describes a downdraft range hood as an example.

[0036] Please refer to Figures 2 to 4 together. Figure 2 is an exploded structural diagram of the first housing and the filter assembly in the filter device provided in this application; Figure 3 is a structural diagram of the first housing and the filter assembly in the filter device provided in this application; Figure 4 is a structural diagram of an embodiment of the first housing and the second housing in the filter device provided in this application. In some embodiments, the filtration device 100 includes a first housing 10, a filter assembly 20, and a second housing 30. The first housing 10 forms a receiving cavity 11 with a first opening 10a. The filter assembly 20 is detachably disposed in the receiving cavity 11 and divides the receiving cavity 11 into a first cavity 111 and a second cavity 112 communicating with the first opening 10a. The filter assembly 20 is configured to filter fluid entering the second cavity 112 from the first opening 10a into the first cavity 111. The second housing 30 is slidably disposed with the first housing 10 and has a second opening 30a. When the second housing 30, the filter assembly 20, and the first housing 10 are in an assembled state, the second opening 30a communicates with the first opening 10a, and the second housing 30 extends at least partially into the second cavity 112 and abuts against the side of the filter assembly 20 facing the second cavity 112.

[0037] The first housing 10 can serve as the basic carrier of the filter device 100, and play a role in supporting and protecting components such as the filter assembly 20 and the second housing 30.

[0038] The filter assembly 20 and the second housing 30 are detachably and sequentially disposed within the receiving cavity 11 formed by the first housing 10. The filter assembly 20 is disposed within the receiving cavity 11 through the first opening 10a, dividing the receiving cavity 11 into a first cavity 111 and a second cavity 112, with the first opening 10a, the second cavity 112, and the first cavity 111 sequentially connected. The filter assembly 20 is used to separate fluids such as oil fumes. The second housing 30 is disposed on the side of the filter assembly 20 facing the first opening 10a, which can restrict the displacement of the filter assembly 20 in the direction of the first opening 10a and can serve to fix the filter assembly 20.

[0039] The first opening 10a can be the air inlet of the filter device 100. The air inlet is used to draw in oil fumes and other fluids from the environment where the range hood is located. For example, when the range hood is installed in the kitchen, the air inlet is used to draw in oil fumes and other fluids from the kitchen. Alternatively, grease and other fluids flowing in from above the filter device 100 can enter the first opening 10a under the action of gravity or negative pressure.

[0040] The filter assembly 20 includes at least one of a metal filter, an activated carbon filter, and an electrostatic precipitator. In some embodiments, the filter assembly 20 includes a metal filter and an activated carbon filter stacked together. The metal filter can intercept solids such as grease and dust, while the activated carbon in the activated carbon filter has a porous structure that can adsorb harmful gases and odors in the fumes. This allows the filter assembly 20 to filter out visible solid impurities and invisible substances in the fumes, effectively improving the filtration effect of the filter assembly 20 and thus better improving the kitchen environment. In other embodiments, the filter assembly 20 includes an electrostatic precipitator and an activated carbon filter stacked together. The electrostatic precipitator can adsorb solids such as grease and dust in the fumes through electrostatic adsorption, and in conjunction with the activated carbon filter, it can improve the filtration effect of the filter assembly 20. In still other embodiments, the filter assembly 20 includes a metal filter, an activated carbon filter, and an electrostatic precipitator stacked together.

[0041] In this embodiment, the second housing 30 and the first housing 10 are slidably disposed, meaning that one of the second housing 30 and the first housing 10 remains relatively stationary, while the other of the second housing 30 and the first housing 10 can slide relative to the first housing 10. In some embodiments, the end of the first housing 10 with the first opening 10a is slidably disposed on the second housing 30. In other embodiments, the second housing 30 is slidably disposed on the end of the first housing 10 with the first opening 10a. This application describes an example where the second housing 30 is slidably disposed on the end of the first housing 10 with the first opening 10a.

[0042] The second housing 30 can be slidably assembled onto the first housing 10 along the sliding direction, or the second housing 30 can be slidably separated from the first housing 10 along the sliding direction. The direction in which the second housing 30 is assembled onto the first housing 10 can be opposite to the direction in which the second housing 30 is separated from the first housing 10. Of course, the direction in which the second housing 30 is assembled onto the first housing 10 can also be the same as the direction in which the second housing 30 is separated from the first housing 10. When the second housing 30, the filter assembly 20 and the first housing 10 are assembled, the second opening 30a and the first opening 10a are overlapped in the arrangement direction of the receiving cavity 11 and the first opening 10a, and the second opening 30a, the first opening 10a, the second cavity 112 and the first cavity 111 are sequentially connected in the arrangement direction of the receiving cavity 11 and the first opening 10a. The second housing 30 extends at least partially into the second cavity 112 and abuts against the side of the filter assembly 20 facing the second cavity 112. The outer edge region of the second opening 30a at least partially covers the end of the filter assembly 20 near the first opening 10a, so as to limit the displacement of the filter assembly 20 along the direction of the first opening 10a and prevent the filter assembly 20 from coming out of the first opening 10a.

[0043] By detachably housing the filter assembly 20 within the receiving cavity 11, and slidably arranging the second housing 30 and the first housing 10, and when the second housing 30, the filter assembly 20, and the first housing 10 are in an assembled state, the second housing 30 extends at least partially into the second cavity 112 and abuts against the side of the filter assembly 20 facing the second cavity 112. On one hand, the second housing 30 can fix the filter assembly 20, reducing the risk of displacement, deformation, or detachment of the filter assembly 20 due to airflow impact or vibration, and preventing oil fumes from entering the first cavity 111 without being filtered by the filter assembly 20. This not only improves the stability of the filter assembly 20, but also... This not only improves the filtration efficiency and effectiveness, but also reduces the risk of abnormal noise caused by displacement, deformation, or detachment of the filter component 20, thereby improving the quietness and reliability of the filter device 100 and enhancing the user experience. On the other hand, when it is necessary to clean the filter component 20, the second housing 30 can be separated from the first housing 10 along the sliding direction, and the filter component 20 can be taken out from the receiving cavity 11 through the first opening 10a, which provides convenience for cleaning the filter component 20 and facilitates a thorough cleaning of the filter component 20, thereby improving the cleaning effect of the filter component 20 and solving the technical problem of poor cleaning effect of the filter component 20.

[0044] During the cleaning of the filter assembly 20, the first housing 10 and the second housing 30 can be cleaned simultaneously, improving the cleaning effect of the first housing 10 and the second housing 30. After cleaning, the filter assembly 20 can be placed in the receiving cavity 11 through the first opening 10a, and the second housing 30 can be slidably assembled onto the first housing 10 along the sliding direction, thus combining the first housing 10, the filter assembly 20, and the second housing 30 into a whole, resulting in high assembly efficiency of the filter device 100.

[0045] Please also refer to Figure 5, which is a side view of an embodiment of the filtering device provided in this application. In some embodiments, the sliding direction between the second housing 30 and the first housing 10 is perpendicular to the arrangement direction of the receiving cavity 11 and the first opening 10a.

[0046] The arrangement direction of the filter assembly 20 and the second housing 30 is parallel to the arrangement direction of the receiving cavity 11 and the first opening 10a, and the sliding direction between the second housing 30 and the first housing 10 is perpendicular to the arrangement direction of the filter assembly 20 and the second housing 30.

[0047] In some embodiments, the size of the filter assembly 20 along the first direction XX is smaller than the size of the first opening 10a along the first direction XX, and the size of the filter assembly 20 along the second direction YY, which is perpendicular to the first direction XX, is smaller than the size of the first opening 10a along the second direction YY; wherein the first direction XX and the second direction YY are both perpendicular to the arrangement direction of the receiving cavity 11 and the first opening 10a.

[0048] The plane containing the first opening 10a is parallel to the first direction XX and the second direction YY. By making the dimension of the filter assembly 20 along the first direction XX smaller than the dimension of the first opening 10a along the first direction XX, and the dimension of the filter assembly 20 along the second direction YY perpendicular to the first direction XX smaller than the dimension of the first opening 10a along the second direction YY, it is convenient to disassemble or assemble the filter assembly 20 into the receiving cavity 11 through the first opening 10a. This improves the efficiency of disassembly and assembly of the filter assembly 20, shortens the cleaning time of the filter assembly 20, and makes the cleaning of the filter assembly 20 simple and quick. This increases the frequency of cleaning the filter assembly 20 by the user, reduces the risk of malfunction of the filter device 100 due to blockage of the filter assembly 20 by grease, dust and other solids, and enables the filter device 100 to maintain a good working condition for a long time, thus extending the service life of the filter device 100.

[0049] In some embodiments, the sliding direction between the second housing 30 and the first housing 10 may be parallel to the first direction XX. The second housing 30 may be slidably mounted on the first housing 10 along the first direction XX, or the second housing 30 may be slidably separated from the first housing 10 along the first direction XX.

[0050] In some embodiments, along the arrangement direction of the receiving cavity 11 and the first opening 10a, the end of the second opening 30a is located on top of the end of the first opening 10a, and the end of the second opening 30a covers the end of the first opening 10a and the end of the filter assembly 20 facing the first opening 10a.

[0051] The end of the second opening 30a is disposed around the periphery of the first opening 10a, and the end of the first opening 10a is disposed around the periphery of the first opening 10a. The end of the second opening 30a is slidably supported on the top of the end of the first opening 10a. The second opening 30a can be the air inlet of the filter device 100.

[0052] By covering the end of the first opening 10a and the end of the filter assembly 20 facing the first opening 10a with the end of the second opening 30a, the gap between the end of the filter assembly 20 near the first opening 10a and the surface of the first housing 10 facing the receiving cavity 11 can be sealed. This prevents oil fumes from entering the second cavity 112 through the second opening 30a and directly entering the first cavity 111 through the gap between the filter assembly 20 and the surface of the first housing 10 facing the receiving cavity 11 without being filtered by the filter assembly 20. This ensures that all oil fumes can be filtered by the filter assembly 20, thereby improving the filtration effect of the oil fumes.

[0053] In some embodiments, the top of the first housing 10 is provided with a first opening 10a, and the first sidewall 12 of the first housing 10 is provided with one of a slide rail 32 and a slide groove 13 extending in the sliding direction at one end near the first opening 10a. The top of the second housing 30 is provided with a second opening 30a, and the second sidewall 31 of the second housing 30 is provided with the other of a slide rail 32 and a slide groove 13 extending in the sliding direction at one end near the second opening 30a. The slide rail 32 and the slide groove 13 are slidably connected to realize the loading and unloading between the second housing 30 and the first housing 10.

[0054] The first housing 10 includes two first sidewalls 12 spaced apart along a second direction YY, and both first sidewalls 12 extend along a first direction XX. A first opening 10a is formed at one end of the two first sidewalls 12 near the top of the first housing 10. Each end of the two first sidewalls 12 near the first opening 10a is provided with one of a slide rail 32 and a slide groove 13 extending along the first direction XX.

[0055] The second housing 30 includes two second sidewalls 31 spaced apart along a second direction YY, both of which extend along the second direction YY. A second opening 30a is formed at one end of each of the two second sidewalls 31 near the top of the second housing 30. At the end of each of the two second sidewalls 31 near the second opening 30a, there is one of a slide rail 32 extending along a first direction XX and a slide groove 13.

[0056] In some embodiments, please continue referring to Figures 2 to 4, the two first sidewalls 12 of the first housing 10 are each provided with a slide rail 32 extending along the first direction XX, and the two second sidewalls 31 of the second housing 30 are each provided with a slide groove 13 extending along the first direction XX; or, the two first sidewalls 12 of the first housing 10 are each provided with a slide groove 13 extending along the first direction XX, and the two second sidewalls 31 of the second housing 30 are each provided with a slide rail 32 extending along the first direction XX. This embodiment of the application is described using the example of the two first sidewalls 12 of the first housing 10 being provided with a slide groove 13 extending along the first direction XX, and the two second sidewalls 31 of the second housing 30 being provided with a slide rail 32 extending along the first direction XX.

[0057] The slide grooves 13 on the two first sidewalls 12 of the first housing 10 are arranged opposite each other along the second direction YY, and the slide rails 32 on the two second sidewalls 31 of the second housing 30 are arranged opposite each other along the second direction YY. In some embodiments, the slide rails 32 of the second housing 30 can be inserted into the slide grooves 13 along the first direction XX. When the end of the second opening 30a completely covers the end of the first opening 10a and the end of the filter assembly 20 facing the first opening 10a, it is indicated that the second housing 30 is assembled. The second housing 30 can also slide in the direction opposite to the insertion to disconnect it from the first housing 10, thereby realizing the detachable installation of the second housing 30 on the first housing 10.

[0058] In some embodiments, one of the first housing 10 and the second housing 30 is provided with a slot (not shown), and the other of the first housing 10 and the second housing 30 is provided with a buckle (not shown). During the assembly process of the second housing 30, when the second housing 30 is assembled in place, the slot and the buckle engage to restrict the sliding of the second housing 30.

[0059] In some embodiments, the slide groove 13 is integrally formed with the first sidewall 12, and / or the slide rail 32 is integrally formed with the second sidewall 31. Thus, the integrally formed structure not only ensures the structural stability between the slide groove 13 and the first sidewall 12 and / or between the slide rail 32 and the second sidewall 31, but also simplifies the structure, reduces the number of parts, and improves the assembly efficiency between the first housing 10 and the second housing 30. Furthermore, the integrally formed structure makes the connection area between the slide groove 13 and the first sidewall 12 and / or the connection area between the slide rail 32 and the second sidewall 31 smooth and easy to clean.

[0060] In some embodiments, the slide groove 13 may be fixedly connected to the first sidewall 12, and / or the slide rail 32 may be fixedly connected to the second sidewall 31. There are no particular restrictions on the method of fixing the slide groove 13 to the first sidewall 12, and / or the method of fixing the slide rail 32 to the second sidewall 31, as long as the slide groove 13 and the first sidewall 12 and / or the slide rail 32 and the second sidewall 31 can always maintain a fixed connection. The slide groove 13 and the first sidewall 12 and / or the slide rail 32 and the second sidewall 31 can be connected by welding, riveting, bolting, or gluing, but are not limited to these methods.

[0061] In some embodiments, the slide 13 and slide rail 32 may be made of hydrophobic material, or the surface of the slide 13 and slide rail 32 may be coated with a hydrophobic material to improve the hydrophobic effect of the surface of the slide 13 and slide rail 32, so that the adhesion of liquid on the slide 13 and slide rail 32 is minimal, and the liquid can roll on the surface of the slide 13 and slide rail 32 and carry away the dust or dirt on the surface of the slide 13 and slide rail 32, which can effectively improve the cleaning effect of the slide 13 and slide rail 32.

[0062] In some embodiments, referring to Figures 2 to 4, the slide groove 13 extends through the end face and side face of the first sidewall 12. The included angle between the two groove walls 131 of the slide groove 13 along the sliding direction is an acute angle. The slide rail 32 has two guide surfaces that are respectively matched with the two groove walls 131.

[0063] The end face of the first sidewall 12 through which the chute 13 penetrates is located at the edge of the first sidewall 12 near the first opening 10a, and the side of the first sidewall 12 through which the chute 13 penetrates is located on the side of the first sidewall 12 facing away from the receiving cavity 11. The chute 13 has two connected groove walls 131. One of the two groove walls 131 is located on the side of the chute 13 near the first opening 10a, and the other of the two groove walls 131 is located on the side of the chute 13 away from the first opening 10a. Both groove walls 131 extend obliquely away from the first opening 10a, and the orthographic projection of the groove wall 131 on the side of the slide 13 near the first opening 10a along the arrangement direction of the receiving cavity 11 and the first opening 10a toward the bottom of the first housing 10 is at least partially located on the side of the slide 13 away from the first opening 10a, so as to cover at least part of the slide 13 and at least part of the groove wall 131 on the side of the slide 13 away from the first opening 10a, such that the included angle between the two groove walls 131 is set at an acute angle.

[0064] The slide rail 32 has two connected guide surfaces. One of the guide surfaces is located on the side of the slide rail 32 closer to the second opening 30a, and the other guide surface is located on the side of the slide rail 32 away from the second opening 30a. The planes containing the two guide surfaces are set at an acute angle and respectively match the two groove walls 131 of the slide groove 13. That is, the guide surface on the side of the slide rail 32 closer to the second opening 30a matches the groove wall 131 on the side of the slide groove 13 closer to the first opening 10a, and the guide surface on the side of the slide rail 32 away from the second opening 30a matches the groove wall 131 on the side of the slide groove 13 away from the first opening 10a.

[0065] By setting the included angle between the two groove walls 131 of the slide groove 13 along the sliding direction to an acute angle, and matching the two guide surfaces of the slide rail 32 with the two groove walls 131 of the slide groove 13 respectively, on the one hand, the sliding trajectory of the second housing 30 can be better defined, reducing the risk of deviation or shaking of the second housing 30 during sliding, thereby improving the stability of the second housing 30 during sliding; on the other hand, the design of the acute-angle slide groove 13 can reduce the contact area between the inner wall of the slide groove 13 and the guide surface of the slide rail 32, thereby not only reducing the friction between the slide groove 13 and the slide rail 32, improving the smoothness of the second housing 30 during sliding, and reducing friction loss, but also reducing sliding noise and improving the quietness effect, thereby improving the user experience.

[0066] In some embodiments, the slide 13 passes through at least one third sidewall 14 of the first housing 10, and the third sidewall 14 is disposed adjacent to the first sidewall 12.

[0067] The first housing 10 includes two third sidewalls 14 disposed opposite to each other along a first direction XX. One of the two third sidewalls 14 is connected to one end of the two first sidewalls 12 along the first direction XX and is located between the two first sidewalls 12, and the other of the two third sidewalls 14 is connected to the other end of the two first sidewalls 12 along the first direction XX and is located between the two first sidewalls 12.

[0068] In some embodiments, the slide groove 13 penetrates both third sidewalls 14 of the first housing 10. Each of the two third sidewalls 14 has a third opening 14a communicating with the second cavity 112. One end of the second housing 30 can be inserted into the third opening 14a and the slide groove 13 from the side of one third sidewall 14 facing away from the second cavity 112, and slide along the slide groove 13 toward the other first sidewall 12 to be assembled onto the first housing 10. When disassembling the second housing 30, one end of the second housing 30 can slide along the slide groove 13 in the direction facing away from one third sidewall 14, and pass through the third opening 14a of the other third sidewall 14 and the penetration point of the slide groove 13 to separate from the first housing 10; or the other end of the second housing 30 can slide along the slide groove 13 in the direction facing away from the other third sidewall 14, and pass through the third opening 14a of one third sidewall 14 and the penetration point of the slide groove 13 to separate from the first housing 10.

[0069] In some embodiments, the groove 13 penetrates one of the two third sidewalls 14 of the first housing 10. One of the two third sidewalls 14 has a third opening 14a communicating with the second cavity 112. One end of the second housing 30 can be inserted into the third opening 14a and the groove 13 from the side of one of the two third sidewalls 14 facing away from the second cavity 112, and slide along the groove 13 toward the other of the two third sidewalls 14 to be assembled onto the first housing 10. When disassembling the second housing 30, the other end of the second housing 30 can slide along the groove 13 toward the other of the two third sidewalls 14, and pass through the third opening 14a of one of the two third sidewalls 14 and the penetration of the groove 13 to separate from the first housing 10.

[0070] In some embodiments, the connection between the first sidewall 12 and the third sidewall 14 is chamfered.

[0071] By chamfering the connection between the first sidewall 12 and the third sidewall 14, not only can the burrs on the first housing 10 be reduced, preventing the risk of sharp corners damaging other components and thus improving the safety of the filter device 100, but stress concentration can also be reduced, avoiding the risk of cracking in the connection area between the first sidewall 12 and the third sidewall 14 due to stress concentration during use, thereby improving the service life of the filter device 100.

[0072] In some embodiments, the third sidewall 14 of the first housing 10 is provided with a mounting portion 15 on the side facing the receiving cavity 11, and the filter assembly 20 is mounted on the mounting portion 15 when the second housing 30 and the first housing 10 are in an assembled state.

[0073] The first housing 10 has mounting portions 15 on both third sidewalls 14 facing the receiving cavity 11, and the mounting portions 15 on the two third sidewalls 14 are arranged opposite each other along the first direction XX. The filter assembly 20 is mounted on the mounting portion 15 on one third side and on the mounting portion 15 on the other third side, which is arranged opposite each other along the first direction XX.

[0074] By installing the filter assembly 20 on the mounting part 15, and having the portion of the second housing 30 extending into the second cavity 112 abut against the side of the filter assembly 20 facing the second cavity 112, on the one hand, the filter assembly 20 can be effectively limited, preventing it from shaking under the action of airflow, thereby improving the structural strength and stability of the filter assembly 20; on the other hand, the sealing between the filter assembly 20 and the first housing 10 can be enhanced, reducing the possibility of oil fumes leaking directly from the gap between the filter assembly 20 and the first housing 10 without being filtered by the filter assembly 20, thus effectively preventing oil fumes from escaping.

[0075] In some embodiments, the third sidewall 14 of the first housing 10 is formed with a groove 151 communicating with the receiving cavity 11 and the first opening 10a. The side of the groove 151 is formed with a mounting platform 152 facing the first opening 10a. The mounting platform 152 serves as a mounting part 15 for supporting the filter assembly 20.

[0076] In this design, grooves 151 are formed on the two third sidewalls 14 of the first housing 10 facing the receiving cavity 11, and the grooves 151 on the third sidewalls 14 are arranged opposite each other along the first direction XX. A mounting platform 152 is formed on the side of the groove 151, and the mounting platform 152 is arranged facing the first opening 10a. The mounting platform 152 can be used to support the filter assembly 20 to improve the stability of the filter assembly 20.

[0077] In some embodiments, the mounting platform 152 includes a first mounting platform 1521 and a second mounting platform 1522 spaced apart and symmetrically arranged along a second direction YY. A limiting wall 153 is formed at the bottom of the groove 151, connecting the first mounting platform 1521 and the second mounting platform 1522. The plane containing the limiting wall 153 may be perpendicular to the arrangement direction of the receiving cavity 11 and the first opening 10a, and the extending directions of the first mounting platform 1521 and the second mounting platform 1522 may be inclined relative to the arrangement direction of the receiving cavity 11 and the first opening 10a. The distance between the first mounting platform 1521 and the second mounting platform 1522 gradually decreases from the end near the opening to the end near the limiting wall 153.

[0078] In some embodiments, the filter assembly 20 includes two filter elements 21, which are spaced apart and symmetrically arranged along a second direction YY. The distance between the ends of the two filter elements 21 near the first opening 10a is greater than the distance between the ends of the two filter elements 21 away from the first opening 10a. The distance between the two filter elements 21 gradually decreases from the end near the first opening 10a to the end away from the first opening 10a. One of the two filter elements 21 slides along the first mounting platform 1521 from the end near the first opening 10a to the end of the first mounting platform 1521 near the limiting wall 153 via the first opening 10a, and the other of the two filter elements 21 slides along the first mounting platform 1521 from the end near the first opening 10a of the second mounting platform 1522 to the end of the first mounting platform 1521 near the limiting wall 153 via the first opening 10a. When the filter element 21 abuts against the limiting wall 153, it indicates that the filter element 21 is assembled.

[0079] The limiting wall 153 protrudes from the bottom of the first housing 10 in the arrangement direction of the receiving cavity 11 and the first opening 10a, preventing the ends of the two filter elements 21 away from the first opening 10a from contacting the bottom of the first housing 10, thereby reducing the risk of the ends of the two filter elements 21 away from the first opening 10a coming into contact with liquids or other fluids entering the first cavity 111.

[0080] By gradually decreasing the distance between the two filter elements 21 from the end closer to the first opening 10a to the end farther from the first opening 10a, on the one hand, the filter elements 21 can guide and collect oil fumes, reducing the possibility of oil fumes escaping from the filter device 100, thereby improving the oil fume capture efficiency of the filter device 100; on the other hand, the oil fumes have a longer flow path at the filter elements 21, which can increase the contact time and contact area between the oil fumes and the filter elements 21, thereby improving the filtration effect of the filter device 100.

[0081] In some embodiments, the two second sidewalls 31 of the second housing 30 extending along the sliding direction are respectively provided with first through holes 31a, which correspond to the filter element 21. Oil fumes entering the second cavity 112 from the first opening 10a can contact the filter element 21 through the first through holes 31a, facilitating filtration of the oil fumes by the filter element 21. The area of ​​the first through hole 31a can be equal to the area of ​​the effective filtration area of ​​the filter element 21, or the area of ​​the first through hole 31a can be slightly larger than the area of ​​the effective filtration area of ​​the filter element 21, thereby increasing the contact area between the oil fumes and the filter element 21 and effectively improving the filtration efficiency and filtration effect of the filter device 100.

[0082] The outer periphery of the first through hole 31a abuts against the outer edge of the filter element 21 facing the second housing 30. The sealing arrangement between the outer edge of the filter element 21 and the corresponding outer periphery of the first through hole 31a not only improves the limiting effect of the second housing 30 on the second filter element 21 and enhances the structural stability of the filter element 21, but also prevents oil fumes from entering the first cavity 111 without being filtered by the filter element 21, thereby improving the filtration effect of the filter element 21 on oil fumes.

[0083] In some embodiments, please continue to refer to FIG3. A stop portion 154 is provided on the limiting wall surface 153. One side of the stop portion 154 along the second direction YY is used to abut against the end of one of the two filter elements 21 away from the first opening 10a. The other side of the stop portion 154 along the second direction YY is used to abut against the end of the other of the two filter elements 21 away from the first opening 10a, so that a gap 20a is formed between the ends of the two filter elements 21 away from the first opening 10a.

[0084] In some embodiments, please refer to FIG6, which is a top view of an embodiment of the filtering device provided in this application. The second housing 30 is also provided with a bottom wall 33 connected to the two second side walls 31 at the end opposite to the second opening 30a. The bottom wall 33 is correspondingly disposed to the gap 20a and is located on the side of the gap 20a facing the second opening 30a. The side of the bottom wall 33 facing away from the second opening 30a can be in sealing contact with the two filter elements 21 to seal the gap 20a and prevent oil fumes from entering the first cavity 111 through the gap 20a between the bottom wall 33 and the filter element 21 without being filtered by the filter element 21.

[0085] The bottom wall 33 is provided with a second through hole 33a that communicates with the second opening 30a. The second through hole 33a connects the first cavity 111 and the second cavity 112, and connects to the exhaust channel of the range hood through the second cavity 112. The setting of the second through hole 33a helps to disperse the flow of oil fumes, so that the filtered oil fumes enter the exhaust channel more evenly, thereby improving the exhaust efficiency.

[0086] In some embodiments, a filter screen (not shown) is provided on the second through hole 33a to intercept solids such as grease and dust, which can effectively improve the smoke exhaust effect.

[0087] In some embodiments, a first sidewall 12 is provided with a ventilation hole 12a communicating with the receiving cavity 11. That is, one of the two first sidewalls 12 is provided with a ventilation hole 12a communicating with the receiving cavity 11, and the other of the two first sidewalls 12 may not be provided with a ventilation hole 12a. The ventilation hole 12a is used to connect to the smoke exhaust channel. The bottom of the ventilation hole 12a protrudes from the bottom of the first housing 10 towards the first opening 10a, and is used to form a liquid collection cavity 16 at the bottom of the first housing 10, the liquid collection cavity 16 being used to collect liquid.

[0088] Since the filter device 100 is located below the stove, if the user spills rice water, vegetable soup, or other liquids during cooking, the liquid will enter the receiving cavity 11 through the first opening 10a. By setting up the liquid collection cavity 16 to collect the liquid, the risk of the inner wall of the exhaust duct and the components inside the exhaust duct becoming damp and sticky due to the liquid entering the exhaust duct can be reduced. This can lead to the growth of bacteria or the adhesion of other impurities on the inner wall of the exhaust duct and the components inside the exhaust duct. This can improve the cleanliness of the exhaust duct and thus effectively improve the quality of the air discharged from the exhaust duct.

[0089] In some embodiments, a sliding marking portion 34 is provided at the end of the second opening 30a. The sliding marking portion 34 is used to indicate the disassembly method and disassembly direction of the second housing 30, and can guide the disassembly of the second housing 30, thereby improving the disassembly efficiency of the second housing 30. The sliding marking portion 34 may include an arrow pointing to the assembly direction of the second housing 30; and / or an arrow pointing to the disassembly direction of the second housing 30.

[0090] This application also provides a method for disassembling a filter device 100. The method for disassembling the filter device 100 is used in any of the above embodiments. The disassembly method includes: separating the second housing 30 from the first housing 10 along a sliding direction to detach the second housing 30 from the first housing 10; and removing the filter assembly 20 from the receiving cavity 11 through the first opening 10a.

[0091] When the filter assembly 20 needs to be cleaned, the second housing 30 is separated from the first housing 10 along the sliding direction to disassemble the second housing 30 from the first housing 10. The filter assembly 20 can then be taken out from the receiving cavity 11 through the first opening 10a, which facilitates cleaning the filter assembly 20 and makes it easier to perform a thorough cleaning of the filter assembly 20. This improves the cleaning effect of the filter assembly 20 and solves the technical problem of poor cleaning effect of the filter assembly 20.

[0092] This application also provides a range hood. The range hood includes the filter device 100 in any of the above embodiments, or a method for disassembling the filter device 100 in any of the above embodiments.

[0093] The range hood provided in this application adopts all the technical solutions of the above-described filtration device 100 embodiments, and therefore has at least all the technical effects brought about by the technical solutions of the above-described filtration device 100 embodiments, which will not be described in detail here.

[0094] This application provides a filtering device and its disassembly method, as well as a range hood. The filtering device includes: a first housing forming a receiving cavity with a first opening; a filter assembly detachably disposed within the receiving cavity, dividing the receiving cavity into a first chamber and a second chamber communicating with the first opening; the filter assembly is configured to filter fluid entering the second chamber from the first opening into the first chamber; a second housing slidably disposed with the first housing, and the second housing having a second opening; when the second housing, the filter assembly, and the first housing are in an assembled state, the second opening communicates with the first opening, and the second housing at least partially extends into the second chamber and abuts against the side of the filter assembly facing the second chamber. This application enables the disassembly and cleaning of the filter assembly, solving the technical problem of poor cleaning effect of the filter assembly in the prior art.

[0095] The above description is merely an embodiment of this application and does not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A filtration device, characterized in that, include: The first housing forms a receiving cavity with a first opening; A filter assembly is detachably disposed within the receiving cavity, dividing the receiving cavity into a first cavity and a second cavity communicating with the first opening; the filter assembly is configured to filter fluid entering the second cavity from the first opening into the first cavity; a second housing is slidably disposed with the first housing, and the second housing has a second opening; when the second housing, the filter assembly, and the first housing are in an assembled state, the second opening communicates with the first opening, and the second housing at least partially extends into the second cavity and abuts against the side of the filter assembly facing the second cavity.

2. The filtration device according to claim 1, characterized in that, The sliding direction between the second housing and the first housing is perpendicular to the arrangement direction of the receiving cavity and the first opening.

3. The filtration device according to claim 1, characterized in that, The size of the filter assembly along the first direction is smaller than the size of the first opening along the first direction, and the size of the filter assembly along the second direction perpendicular to the first direction is smaller than the size of the first opening along the second direction; wherein, both the first direction and the second direction are perpendicular to the arrangement direction of the receiving cavity and the first opening.

4. The filtration device according to claim 3, characterized in that, Along the arrangement direction of the receiving cavity and the first opening, the end of the second opening is located on top of the end of the first opening, and the end of the second opening covers the end of the first opening and the end of the filter assembly facing the first opening.

5. The filtration device according to claim 2, characterized in that, The first housing has a first opening at its top, and one of a slide rail and a slide groove extending along the sliding direction is provided on the end of the first sidewall of the first housing near the first opening. The second housing has a second opening at its top, and the other of the slide rail and the slide groove extending along the sliding direction is provided on the end of the second sidewall of the second housing near the second opening. The slide rail and the slide groove are slidably connected to realize the loading and unloading between the second housing and the first housing.

6. The filtration device according to claim 5, characterized in that, The chute penetrates the end face and side face of the first sidewall, and the included angle between the two chute walls along the sliding direction is an acute angle; the chute penetrates at least one third sidewall of the first housing, and the third sidewall is adjacent to the first sidewall; the slide rail has two guide surfaces that are respectively matched with the two chute walls.

7. The filtration device according to claim 6, characterized in that, The connection between the first sidewall and the third sidewall is chamfered.

8. The filtration device according to claim 6, characterized in that, The third sidewall of the first housing is provided with a mounting portion facing the receiving cavity. When the second housing and the first housing are in an assembled state, the filter assembly is mounted on the mounting portion.

9. The filtration device according to claim 8, characterized in that, The third sidewall of the first housing is formed with a groove that connects the receiving cavity and the first opening. A mounting platform is formed on the side of the groove facing the first opening. The mounting platform serves as the mounting part for supporting the filter assembly.

10. The filtration device according to any one of claims 1 to 9, characterized in that, The filter assembly includes two filter elements, which are spaced apart and symmetrically arranged along a second direction. The second direction is perpendicular to the sliding direction and the arrangement direction of the receiving cavity and the first opening. The distance between the ends of the two filter elements near the first opening is greater than the distance between the ends of the two filter elements away from the first opening. The two second sidewalls of the second housing extending along the sliding direction are respectively provided with first through holes. The first through holes correspond to the filter elements, and the outer edge of the filter element is sealed to the outer peripheral area of ​​the corresponding first through hole.

11. The filtration device according to claim 10, characterized in that, The second housing is further provided with a bottom wall connected to one end of the two second side walls away from the second opening, and the bottom wall is provided with a second through hole communicating with the second opening.

12. The filtration device according to any one of claims 5 to 9, characterized in that, The first sidewall is provided with a ventilation hole communicating with the receiving cavity, and the bottom of the ventilation hole protrudes from the bottom of the first housing towards the first opening, for forming a liquid collection cavity at the bottom of the first housing.

13. The filtration device according to any one of claims 1 to 9, characterized in that, The end of the second opening is provided with a sliding marking section.

14. A method for disassembling a filter device, characterized in that, For a filtration device as described in any one of claims 1 to 13, the disassembly method includes: separating the second housing from the first housing in a sliding direction to disassemble the second housing from the first housing; and removing the filter assembly from the receiving cavity via the first opening.

15. A range hood, characterized in that, The range hood includes a filtration device as described in any one of claims 1 to 13.

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