An oil fume purification device and an extractor hood

Abstract

The utility model discloses a kind of oil fume purification device and range hood, range hood application equipment technical field, oil fume purification device includes the shell with cavity, air inlet and air outlet are configured on shell, by configuring oil fume suction unit, ozone purification unit, zeolite molecule filter unit and oil fume discharge unit in shell, utilize the characteristic function of ozone and zeolite molecule filtration, i.

Description

Technical Field

[0001] This utility model relates to the technical field of range hood application equipment, and in particular to an oil fume purification device and a range hood. Background Technology

[0002] The fume purifier in a range hood can purify harmful substances in cooking fumes, such as sulfides, ammonia, benzene, and bacteria, making the exhaust gas cleaner.

[0003] As a fume purifier in a range hood, it achieves its gas cleaning function mainly by using multiple filter layers / filter equipment, such as activated carbon filters or HEPA filters. However, when it is necessary to remove substances such as sulfides, ammonia, benzene, and bacteria in the fumes, it is difficult to remove them using only activated carbon filters or HEPA filters. This results in the fume purifier being too bulky, hindering its placement, and affecting the user experience.

[0004] Therefore, solutions to the above problems are urgently needed. Utility Model Content

[0005] The present invention aims to solve the technical problems mentioned in the background art. The purpose of the present invention is to provide an oil fume purification device and a range hood. By improving the filtration function device to use ozone and zeolite molecular sieves to purify oil fumes, the application of filtration equipment is reduced, thereby reducing the size / volume of the oil fume purification device.

[0006] As one aspect of this application, an oil fume purification device is provided, which is used in a range hood. The oil fume purification device includes a housing with a cavity, and the housing is provided with an air inlet and an air outlet, including:

[0007] A fume extraction unit is provided, which is located at the air inlet of the housing and is used to guide fumes into the cavity.

[0008] An ozone purification unit, wherein the ozone purification unit is mounted on the housing;

[0009] A zeolite molecular filter unit, wherein the zeolite molecular filter unit is mounted on the housing;

[0010] An oil fume emission unit is provided, which is located at the air outlet of the housing and is used to guide the purified oil fumes out of the cavity.

[0011] The system also includes a control circuit board mounted on the housing and electrically connected to the ozone purification unit. When the control circuit board receives a detection signal from the fume purification device, it sends a working command, and the ozone purification unit operates according to the working command.

[0012] Compared with the prior art, the present application discloses an oil fume purification device, which is applied in a range hood. The oil fume purification device includes a housing with a cavity, an air inlet and an air outlet. By arranging an oil fume intake unit, an ozone purification unit, a zeolite molecular filtration unit and an oil fume exhaust unit on the housing, the device utilizes the characteristic functions of ozone and zeolite molecular filtration. Specifically, the strong oxidizing property of ozone decomposes odorous gases such as ammonia, benzene, and hydrogen sulfide, while the zeolite molecular filtration adsorbs the odorous gases that have passed through ozone molecules. The combination of ozone and zeolite molecular filtration completes the filtration and cleaning of oil fumes, thereby reducing the overall size / volume of the oil fume purification device and making it easier for users to use.

[0013] Furthermore, the fume purification device includes:

[0014] A signal operating element, which is electrically connected to the control circuit board.

[0015] Furthermore, the signal operating element includes one or more of a wind speed sensor, a carbon monoxide sensor, and a methane sensor.

[0016] Furthermore, the fume intake unit, ozone purification unit, zeolite molecular filtration unit, and fume emission unit are arranged sequentially within the cavity according to the air inlet and outlet directions within the cavity;

[0017] The ozone purification unit is positioned on the flow path of the air inlet and the cavity constraining the flow of oil fumes into the cavity.

[0018] Furthermore, the zeolite molecular filtration unit includes:

[0019] Zeolite molecular sieve filtration;

[0020] The upper cover and lower cover of the molecular sieve are used to clamp and assemble the zeolite molecular sieve.

[0021] In this application, the housing is a square housing, and an obliquely arranged partition plate is provided inside the housing to divide the cavity of the housing into an installation space and a circulation space. The control circuit board is arranged in the installation space; the ozone purification unit is installed on the partition plate.

[0022] The fume intake unit, ozone purification unit, zeolite molecular filtration unit, and fume emission unit are arranged sequentially from left to right within the guiding direction of the circulation space.

[0023] Furthermore, the fume purification device includes:

[0024] A protective unit is arranged at the air outlet and located at the air inlet of the zeolite molecular filter unit.

[0025] Furthermore, the protective unit is a protective cover, and triangular supports are arranged on both sides of the protective cover;

[0026] After the zeolite molecular filter unit is assembled with the protective cover, the zeolite molecular filter unit is arranged obliquely by using a triangular support.

[0027] In this application, the air inlet and the air outlet are arranged on the upper and lower sides of the housing, and the zeolite molecular filter unit is installed on the upper part of the housing;

[0028] The housing is a square housing, and the ozone purification unit is installed inside the housing;

[0029] A control box is installed on one side of the housing, and the control circuit board is installed inside the control box;

[0030] The cavity of the shell is a flow space, and the oil fume intake unit, ozone purification unit, zeolite molecular filtration unit and oil fume emission unit are arranged sequentially from bottom to top according to the guiding direction of the flow space.

[0031] As a second aspect of this application, a range hood is provided, wherein the range hood uses the oil fume purification device as described above.

[0032] This application discloses a range hood that, by employing the aforementioned fume purification device, possesses all the beneficial effects of such a device. Specifically, the fume purification device includes a housing with a cavity, an air inlet and an air outlet. By arranging a fume intake unit, an ozone purification unit, a zeolite molecular filtration unit, and a fume exhaust unit within the housing, the device utilizes the characteristics of ozone and zeolite molecular filtration. Specifically, ozone's strong oxidizing properties decompose odorous gases such as ammonia, benzene, and hydrogen sulfide, while zeolite molecular filtration adsorbs the odorous gases that have passed through ozone molecules. This combination of ozone and zeolite molecular filtration achieves the filtration and cleaning of the fume, thereby reducing the overall size / volume of the fume purification device and making it easier for users to operate.

[0033] To better understand and implement this invention, the following detailed description is provided in conjunction with the accompanying drawings. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of the structure of an oil fume purification device in this embodiment;

[0035] Figure 2 This is a schematic diagram of one of the preferred layouts of an oil fume purification device in this embodiment;

[0036] Figure 3 This is a structural schematic diagram from another angle of one of the preferred layouts of an oil fume purification device in this embodiment;

[0037] Figure 4 This is an exploded view of one of the preferred layouts of an oil fume purification device in this embodiment;

[0038] Figure 5 This is a cross-sectional view of the ozone purification unit at one of the preferred layouts of an oil fume purification device in this embodiment.

[0039] Figure 6 This is a schematic diagram of a preferred layout of an oil fume purification device in this embodiment;

[0040] Figure 7 This is an exploded view of a preferred layout of an oil fume purification device in this embodiment;

[0041] Figure 8 This is a schematic diagram of a preferred layout of an oil fume purification device in this embodiment, applied to a range hood.

[0042] Figure 9 This is a schematic diagram of a preferred layout of an oil fume purification device in this embodiment, applied to a range hood.

[0043] Figure Descriptions: 10. Housing; 101. Air Inlet; 102. Air Outlet; 1. Fume Suction Unit; 2. Ozone Purification Unit; 3. Zeolite Molecular Filtration Unit; 4. Fume Emission Unit; 5. Control Circuit Board; 6. Signal Working Components; 31. Zeolite Molecular Filter; 32. Upper Cover of Molecular Filter; 33. Lower Cover of Molecular Filter; 103. Divider Plate; 7. Protective Unit; 71. Triangular Bracket; 104. Control Box; 100. Range Hood; 200. Fume Purification Device. Detailed Implementation

[0044] To better illustrate this utility model, a further detailed description of this utility model is provided below with reference to the accompanying drawings.

[0045] It should be understood that the described embodiments are merely some, not all, of the embodiments of this application. 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 the embodiments of this application.

[0046] The terminology used in the embodiments of this application is for the purpose of describing particular embodiments only and is not intended to limit the embodiments of this application. The singular forms “a,” “the,” and “the” used in the embodiments of this application are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any or all possible combinations of one or more associated listed items.

[0047] In the following description, when referring to the accompanying drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims. In the description of this application, it should be understood that the terms "first," "second," "third," etc., are used only to distinguish similar objects and are not necessarily used to describe a specific order or sequence, nor should they be construed as indicating or implying relative importance. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0048] Furthermore, in the description of this application, unless otherwise stated, "multiple" means two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, or B alone. The character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0049] Based on existing technology, the filtration system of existing fume purification devices treats fumes using a single method, meaning that each element in the fume is treated with a separate filtration layer. This results in an overly large overall structure for the fume purification device.

[0050] Traditional range hoods and their fume purifiers face technical challenges in handling harmful substances such as sulfides, ammonia, benzene, and bacteria in cooking fumes. Relying solely on traditional filtration methods like activated carbon filters or HEPA filters is insufficient to effectively remove these specific components. To achieve the desired purification effect, it is often necessary to increase the number or volume of filter layers, directly leading to an increase in the overall size of the fume purification device.

[0051] For example, consider a standard kitchen environment where cooking fumes contain a variety of complex chemicals and microorganisms. When these fumes are drawn into a purification device using traditional filtration technology, while particulate matter and some volatile organic compounds can be captured, the removal efficiency for small or polar molecules such as sulfides, ammonia, and benzene, as well as bacteria, is limited. To improve the purification capacity for these substances, designers may need to significantly increase the amount of activated carbon or other adsorbent materials, or layer multiple filter media. This makes the purification device much larger than ideal, affecting its integration and layout within the range hood.

[0052] Therefore, the main technical problem to be solved in this application is to integrate the filtration process, thereby reducing the size of the fume purification device.

[0053] The following is a specific example in this embodiment:

[0054] Firstly, such as Figure 1 As shown, an oil fume purification device is provided, which is used in a range hood. The oil fume purification device includes a housing 10 with a cavity, and an air inlet 101 and an air outlet 102 are disposed on the housing 10.

[0055] The fume extraction unit 1 is located at the air inlet 101 of the housing 10 and is used to guide the fumes into the cavity.

[0056] Ozone purification unit 2, which is mounted on housing 10;

[0057] Zeolite molecular filter unit 3, which is mounted on housing 10;

[0058] Oil fume emission unit 4 is located at the air outlet 102 of the housing 10 and is used to guide the purified oil fume to be discharged outside the cavity.

[0059] And a control circuit board 5, which is mounted on the housing 10 and is electrically connected to the ozone purification unit 2. When the control circuit board 5 receives the detection signal of the oil fume purification device, the control circuit board 5 sends a working command, and the ozone purification unit 2 works according to the working command.

[0060] The oil fume intake unit 1 is located at the air inlet 101 of the housing 10, used to guide oil fumes into the cavity, primarily to ensure that the oil fumes can effectively enter the device for treatment. The ozone purification unit 2 is installed inside the cavity of the housing 10, used to decompose harmful substances and bacteria in the oil fumes using the oxidizing properties of ozone. It can generate ozone through methods such as corona discharge or ultraviolet irradiation, primarily to address the problem of existing technologies being unable to remove specific harmful substances. The zeolite molecular filtration unit 3 is installed inside the cavity of the housing 10, used to further purify the gas using the adsorption and molecular sieving capabilities of zeolite materials. It can be in the form of zeolite particles or zeolite fibers, primarily to adsorb residues after ozone treatment, improving the purification effect. The oil fume exhaust unit 4 is located at the air outlet 102 of the housing 10, used to guide the purified oil fumes out of the cavity, primarily to ensure the safe and effective discharge of the treated gas from the device. The control circuit board 5 is mounted on the housing 10 and electrically connected to the ozone purification unit 2. When it receives the detection signal from the fume purification device, it sends a working command. The ozone purification unit 2 works according to the working command. It can be implemented using a microcontroller, sensor interface circuit and drive circuit. The main purpose is to realize intelligent control of the ozone purification unit 2, improve purification efficiency and save energy.

[0061] By combining the ozone purification unit 2 with the zeolite molecular filter unit 3 in the oil fume flow path, harmful substances such as sulfides, ammonia, benzene, and bacteria in the oil fume that are difficult to remove by traditional filtration can be effectively decomposed and adsorbed, thereby improving purification efficiency and effect, and may also help to optimize the size of the device.

[0062] Preferably, the ozone purification unit 2 can be an ozone generator, which is used to generate ozone inside the housing 10. The zeolite molecular filtration unit 3 can be a zeolite molecular filter sieve. The zeolite molecular sieve has a uniform pore size and is an ionic adsorbent. It can selectively adsorb according to the different sizes and polarities of molecules. It has strong adsorption capacity and still has adsorption capacity even when the gas composition concentration is very low.

[0063] Specifically, cooking fumes enter the housing 10 through the air inlet 101 and are guided into the cavity formed inside the housing 10 by the fume intake unit 1. Inside the cavity, the fumes first flow through the ozone purification unit 2, where harmful substances and bacteria are decomposed or inactivated by ozone. Subsequently, the ozone-treated gas continues to the zeolite molecular filter unit 3, where residual pollutants, decomposition products, or incompletely reacted substances are adsorbed or sieved away by the zeolite material. Finally, the gas, purified through these two stages, is guided through the fume emission unit 4 and discharged from the housing 10 through the air outlet 102. This series-connected purification process achieves multi-stage deep treatment of cooking fumes. The control circuit board 5 receives detection signals from the fume purification device (e.g., signals related to fume concentration) to determine whether the ozone purification unit 2 needs to be activated and how it should operate, thus achieving on-demand purification and optimizing the efficiency and effectiveness of the entire purification process.

[0064] In summary, it can be understood that the ozone purification unit 2 and the zeolite molecular filter unit 3 can completely purify the oil fumes in a household setting. Compared with existing purification equipment, the number of filter devices used in the purification application is reduced. While maintaining the compactness of the oil fume purification device, the oil fume purification device in this embodiment has a small size, making it convenient for users to use.

[0065] In addition, the introduction of control circuit board 5 enables intelligent control of ozone purification unit 2. Control circuit board 5 is mounted on the housing 10 of the device and electrically connected to ozone purification unit 2, thus enabling direct control of its operation. The entire control process is based on detection signals received by the fume purification device. When the device acquires signals reflecting the current fume condition or environmental parameters through its detection elements, these signals are sent to control circuit board 5. Control circuit board 5 analyzes and judges the received detection signals. If the detection signals indicate that the current environment requires ozone purification, control circuit board 5 generates and sends corresponding operating instructions to ozone purification unit 2. Ozone purification unit 2 will only start and operate according to the mode set by the instruction after receiving the instruction. With control circuit board 5, purification efficiency can be improved while meeting purification requirements, and this also provides a basis for achieving a smaller size for the fume purification device.

[0066] This embodiment discloses an oil fume purification device used in a range hood. The device includes a housing 10 with a cavity, an air inlet 101 and an air outlet 102. By arranging an oil fume intake unit 1, an ozone purification unit 2, a zeolite molecular filtration unit 3 and an oil fume emission unit 4 on the housing 10, the device utilizes the characteristic functions of ozone and zeolite molecular filtration. Specifically, ozone's strong oxidizing properties decompose odorous gases such as ammonia, benzene, and hydrogen sulfide, while zeolite molecular filtration adsorbs the odorous gases that have passed through ozone molecules. The combination of these two processes completes the filtration and cleaning of oil fumes, thereby reducing the overall size / volume of the oil fume purification device and making it easier for users to operate.

[0067] In this embodiment, the fume purification device includes a signal working element 6, which is electrically connected to the control circuit board 5. The signal working element 6 includes one or more of a wind speed sensor, a carbon monoxide sensor, and a methane sensor.

[0068] A wind speed sensor detects the flow rate of cooking fumes, a carbon monoxide sensor detects the carbon monoxide concentration, and a methane sensor detects the methane concentration. These sensors convert the detected parameters into electrical signals and send them to the control circuit board 5.

[0069] By utilizing various specific detection signals such as wind speed, carbon monoxide, and methane, the control circuit board 5 can more accurately assess the complex conditions of cooking fumes, thereby enabling on-demand and optimized control of the ozone purification unit 2. This control based on multi-dimensional and more targeted signals allows the ozone purification unit 2 to more effectively and specifically treat harmful components in cooking fumes, while avoiding unnecessary over-purification when the amount of cooking fumes is small or the concentration of harmful gases is low, thus improving the overall purification effect and reducing energy consumption. This approach, combined with the basic framework of the control circuit board 5 receiving detection signals and controlling the operation of the ozone purification unit 2, significantly improves the level of intelligence and the performance of the cooking fume purification device by providing richer and more accurate input information.

[0070] In this embodiment, the fume intake unit 1, ozone purification unit 2, zeolite molecular filtration unit 3, and fume emission unit 4 are arranged sequentially in the cavity according to the air inlet and outlet direction within the cavity;

[0071] The ozone purification unit 2 is positioned on the flow path of the air inlet 101 and the cavity constrains the flow of oil fumes into the cavity.

[0072] The phrase "arranged sequentially within the cavity according to the airflow direction" refers to the arrangement of the fume intake unit 1, ozone purification unit 2, zeolite molecular filtration unit 3, and fume exhaust unit 4 within the fume purification device, following the main flow direction of the fume within the cavity, from the end where the fume enters the cavity to the other end where it exits, in a specific order. This arrangement can be achieved by connecting the units in series along the cavity's axial direction or the main flow direction.

[0073] "The flow path of oil fumes entering the cavity is constrained by the air inlet 101 and the cavity" means that after the oil fumes enter the oil fume purification device, the spatial range and direction of their flow are restricted and guided by the structure of the air inlet 101 and the cavity, forming a relatively determined and non-random flow path.

[0074] As described above, the ozone purification unit 2 is positioned on the flow path, allowing it to come into direct contact with the oil fumes, thereby improving the utilization rate of the ozone purification unit 2. While ensuring the treatment effect of the ozone purification unit 2, the volume of the inner cavity of the housing 10 can be reduced, thus achieving a compact overall oil fume purification device with a smaller size.

[0075] The preferred structural layout in this embodiment is described below. First, in this embodiment, as shown... Figures 2 to 7 As shown, the zeolite molecular filtration unit 3 includes:

[0076] Zeolite filter molecular sieve 31;

[0077] The upper cover 32 and the lower cover 33 of the molecular sieve are used to clamp and combine the zeolite molecular sieve 31.

[0078] Based on the explanations in the existing technology, zeolite filter molecular sieve 31 refers to an adsorption or catalytic material with a microporous structure, used to capture or convert harmful components in oil fumes, and it can take the form of granules, powders or beads.

[0079] The design takes into account the use of the zeolite molecular sieve 31. The upper cover 32 and lower cover 33 of the molecular sieve effectively secure the zeolite molecular sieve 31, preventing it from scattering or shifting. The upper cover 32, lower cover 33, and zeolite molecular sieve 31 form a stable whole, facilitating installation and positioning within the cavity of the fume purification device. This ensures that the zeolite molecular sieve 31 operates stably during airflow and effectively purifies the fumes. This structure also improves the ease of manufacturing, installation, maintenance, and replacement of the filter unit.

[0080] One of the preferred structural layouts of the fume purification device in this embodiment is as follows: Figures 2 to 4As shown, the housing 10 is a square housing 10, and an obliquely arranged partition plate 103 is provided inside the housing 10. The partition plate 103 is used to divide the cavity of the housing 10 into an installation space and a circulation space. The control circuit board 5 is arranged in the installation space; the ozone purification unit 2 is installed on the partition plate 103.

[0081] In the diagram, the fume intake unit 1, ozone purification unit 2, zeolite molecular filtration unit 3, and fume emission unit 4 are arranged sequentially from left to right according to the guiding direction of the flow space.

[0082] Specifically, the fume purification device includes a housing 10 with a cavity, on which an air inlet 101 and an air outlet 102 are disposed. A fume intake unit 1 is located at the air inlet 101 of the housing 10, used to guide fumes into the cavity. A fume exhaust unit 4 is located at the air outlet 102 of the housing 10, used to guide the purified fumes out of the cavity. A control circuit board 5 is mounted on the housing 10 and electrically connected to an ozone purification unit 2. Upon receiving a detection signal from the fume purification device, the control circuit board 5 sends a working command, and the ozone purification unit 2 operates according to the working command. By designing the housing 10 as a square and providing an inclined partition 103 inside, the cavity of the housing 10 is divided into an installation space and a circulation space. The control circuit board 5 is arranged within the installation space, which is physically isolated from the circulation space where fumes flow. The ozone purification unit 2 is mounted on the partition 103, located within the circulation space. The fume intake unit 1, ozone purification unit 2, zeolite molecular filter unit 3, and fume exhaust unit 4 are arranged sequentially from left to right within the circulation space. Fumes enter through the air inlet 101, pass through the fume intake unit 1 into the circulation space, and then flow sequentially through the ozone purification unit 2 and the zeolite molecular filter unit 3 before finally being exhausted from the air outlet 102 via the fume exhaust unit 4. A partition plate 103 guides the fume flow along a preset path, ensuring that the fume air aligns with the output of the ozone purification unit 2.

[0083] In addition, in the current layout, the fume purification device includes a protective unit 7, which is arranged at the air outlet 102 and located at the air inlet of the zeolite molecular filter unit 3. Specifically, the protective unit 7 is a protective cover, and triangular supports 71 are arranged on both sides of the protective cover. After the zeolite molecular filter unit 3 is spliced ​​with the protective cover, the zeolite molecular filter unit 3 is arranged obliquely by utilizing the triangular supports 71.

[0084] The protective unit 7 is a structure installed in the oil fume flow path to intercept solid particles, droplets or other impurities in the oil fume. In this embodiment, the protective unit 7 is preferably a protective cover with triangular supports 71 on both sides. The triangular supports 71 are used to realize the oblique arrangement of the zeolite molecular filter unit 3, which can improve the utilization rate of the internal space of the housing 10, optimize the airflow path through the zeolite molecular filter unit 3, help improve the purification effect, and make the device structure more compact.

[0085] The second preferred structural layout of the fume purification device in this embodiment is as follows: Figures 5 to 6 As shown, the air inlet 101 and the air outlet 102 are arranged on the upper and lower sides of the housing 10, and the zeolite molecular filter unit 3 is installed on the upper part of the housing 10.

[0086] The housing 10 is a square housing 10, and the ozone purification unit 2 is installed inside the housing 10;

[0087] A control box 104 is installed on one side of the housing 10, and the control circuit board 5 is installed inside the control box 104;

[0088] The cavity of the housing 10 is a flow space, and the oil fume intake unit 1, ozone purification unit 2, zeolite molecular filtration unit 3 and oil fume emission unit 4 are arranged sequentially from bottom to top according to the guiding direction of the flow space.

[0089] Specifically, the cooking fumes enter through the air inlet 101 located below the housing 10 and are guided into the cavity inside the housing 10 by the fume extraction unit 1. The cavity is designed as a flow space, guiding the cooking fumes to flow vertically from bottom to top. Within this flow space, the fumes sequentially pass through the fume extraction unit 1, the ozone purification unit 2, the zeolite molecular filter unit 3, and the fume emission unit 4. First, the fumes pass through the ozone purification unit 2, where harmful substances and odors are oxidized and decomposed by ozone. Then, the ozone-treated gas continues to flow upwards and enters the zeolite molecular filter unit 3 located above the housing 10, where residual harmful gases and odors are adsorbed by the zeolite material, achieving deep purification. Finally, the purified gas is discharged through the air outlet 102 located above the housing 10 and guided out by the fume emission unit 4. The control circuit board 5 is installed in a control box 104 on one side of the housing 10, receiving detection signals and controlling the operation of the ozone purification unit 2. The control box 104 provides protection for the circuit board. This layout, with the air inlet 101 and outlet 102 positioned on the upper and lower sides and the purification units arranged vertically, creates a stable vertical oil fume flow path. This facilitates the separation of some oil droplets under gravity and ensures that the oil fume passes through each purification unit in an orderly and thorough manner, thus improving purification efficiency. Placing the zeolite molecular filter unit 3 at the end of the airflow path ensures the cleanliness of the final exhaust gas. The square housing 10 facilitates the installation of internal units and the utilization of space. The independent mounting position of the control circuit board 5 facilitates its maintenance and prevents oil fume corrosion. This specific structural layout, combined with the functions of each purification unit, forms a highly efficient and compact oil fume purification system.

[0090] In addition, in the current layout, the fume purification device also utilizes the protective unit 7, which is also a protective cover. The protective unit 7 is arranged at the air outlet 102 and is located at the air inlet end of the zeolite molecular filter unit 3. Since the air inlet 101 and air outlet 102 are arranged vertically, and the air inlet and outlet do not require guidance, no improvement is needed in the application function of the protective cover. Its original function is to improve air emission efficiency.

[0091] Secondly, such as Figures 8 to 9 As shown, a range hood is provided, wherein the range hood uses the oil fume purification device as described above.

[0092] Since the range hood 100 uses the oil fume purification device 200 as described above, the range hood 100 has all the beneficial effects of the oil fume purification device 200, which will not be described in detail here.

[0093] This application discloses a range hood that, by employing the aforementioned fume purification device, possesses all the beneficial effects of such a device. Specifically, the fume purification device includes a housing 10 with a cavity, on which an air inlet 101 and an air outlet 102 are disposed. By arranging a fume intake unit 1, an ozone purification unit 2, a zeolite molecular filtration unit 3, and a fume exhaust unit 4 within the housing 10, the unique functions of ozone and zeolite molecular filtration are utilized. Specifically, the strong oxidizing properties of ozone decompose odorous gases such as ammonia, benzene, and hydrogen sulfide, while the zeolite molecular filtration adsorbs the odorous gases that have passed through ozone molecules. The combination of these two processes completes the filtration and cleaning of the fume, thereby reducing the overall size / volume of the fume purification device and making it easier for users to operate.

[0094] Based on the disclosure and teachings of the above specification, those skilled in the art can make changes and modifications to the above embodiments. Therefore, this utility model is not limited to the specific embodiments disclosed and described above, and some modifications and changes to this utility model should also fall within the protection scope of the claims of this utility model. Furthermore, although some specific terms are used in this specification, these terms are only for convenience of explanation and do not constitute any limitation on this utility model.

Claims

1. An oil fume purification device, used in a range hood, the oil fume purification device comprising a housing having a cavity, the housing being provided with an air inlet and an air outlet, characterized in that, include: A fume extraction unit is provided, which is located at the air inlet of the housing and is used to guide fumes into the cavity. An ozone purification unit, wherein the ozone purification unit is mounted on the housing; A zeolite molecular filter unit, wherein the zeolite molecular filter unit is mounted on the housing; An oil fume emission unit is provided, which is located at the air outlet of the housing and is used to guide the purified oil fumes out of the cavity. The system also includes a control circuit board mounted on the housing and electrically connected to the ozone purification unit. When the control circuit board receives a detection signal from the fume purification device, it sends a working command, and the ozone purification unit operates according to the working command.

2. The oil fume purification device according to claim 1, characterized in that, The fume purification device includes a signal working element, which is electrically connected to the control circuit board.

3. The oil fume purification device according to claim 2, characterized in that: The signal operating element includes one or more of a wind speed sensor, a carbon monoxide sensor, and a methane sensor.

4. The oil fume purification device according to claim 1, characterized in that: The fume intake unit, ozone purification unit, zeolite molecular filtration unit, and fume exhaust unit are arranged sequentially within the cavity according to the air inlet and outlet directions within the cavity. The ozone purification unit is positioned on the flow path of the air inlet and the cavity constraining the flow of oil fumes into the cavity.

5. The oil fume purification device according to claim 1, characterized in that, The zeolite molecular filtration unit includes: Zeolite molecular sieve filtration; The upper cover and lower cover of the molecular sieve are used to clamp and assemble the zeolite molecular sieve.

6. The oil fume purification device according to claim 1, characterized in that: The housing is a square housing, and an obliquely arranged partition plate is provided inside the housing to divide the cavity of the housing into an installation space and a circulation space. The control circuit board is arranged in the installation space; the ozone purification unit is installed on the partition plate. The fume intake unit, ozone purification unit, zeolite molecular filtration unit, and fume emission unit are arranged sequentially from left to right according to the guiding direction of the circulation space.

7. The oil fume purification device according to claim 6, characterized in that, The fume purification device includes a protective unit, which is arranged at the air outlet and located at the air inlet of the zeolite molecular filter unit.

8. The oil fume purification device according to claim 7, characterized in that: The protective unit is a protective cover, and triangular supports are arranged on both sides of the protective cover. After the zeolite molecular filter unit is assembled with the protective cover, the zeolite molecular filter unit is arranged obliquely by using a triangular support.

9. The oil fume purification device according to claim 1, characterized in that: The air inlet and the air outlet are arranged on the upper and lower sides of the housing, and the zeolite molecular filter unit is installed on the upper part of the housing. The housing is a square housing, and the ozone purification unit is installed inside the housing; A control box is installed on one side of the housing, and the control circuit board is installed inside the control box; The cavity of the housing is a flow space, and the oil fume intake unit, ozone purification unit, zeolite molecular filtration unit and oil fume emission unit are arranged sequentially from bottom to top according to the guiding direction of the flow space.

10. A range hood, characterized in that, The range hood uses the oil fume purification device as described in any one of claims 1 to 9.

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