Cleaning unit, filter plate unit cleaning assembly, oil smoke separation cleaning device and range hood

Abstract

The utility model relates to the technical field of range hoods, in particular to a cleaning unit which comprises one or more cleaning subunits, each cleaning subunit comprises a retaining strip made of a first material and a front scraping part and / or a rear scraping part which are fixed relative to the retaining strip and made of a second material, the front scraping part is used for being coupled with the air inlet side surface of each layer of filter plate, the rear scraping part is used for being coupled with the rear side surface of each layer of filter plate, the hardness of the first material is larger than that of the second material, and the hardness of the second material is smaller than that of the filter plate. By adopting the scheme, the rigidity effect of the cleaning subunits can be improved, the fitting degree of one or more cleaning subunits and the filter plate is ensured, and the cleaning effect is ensured. The utility model further provides a filter plate unit cleaning assembly of the cleaning unit and a range hood.

Description

TECHNICAL FIELD

[0001] The utility model relates to range hood technical field, concretely relates to clean unit, filter plate unit cleaning assembly oil fume separation cleaning device and smoke machine. BACKGROUND

[0002] The prior patent CN210373595U of the inventor of the present application discloses a cleaning device of an oil fume purification system, which comprises a cleaning structure installed on a range hood, the cleaning structure is composed of a lower purification combined structure, an upper purification combined structure and an oil scraping structure, an oil scraping sheet is designed according to the shape of the purification device, and the oil scraping sheet can be pushed to push oil to an oil cup to realize cleaning during cleaning.

[0003] The inventor finds through tests that the cleaning scheme does not need to disassemble the smoke separator, the oil scraping sheet has poor adhesion with the filter plate during use, which affects the scraping cleaning effect and user experience.

[0004] On the other hand, the manual pushing of the oil scraping sheet is not convenient to operate, and a device capable of realizing automatic cleaning needs to be developed. UTILITY MODEL CONTENTS

[0005] One object of the utility model is to overcome the problem that the cleaning unit in the prior art has poor adhesion with the filter plate during use, which affects the scraping cleaning effect and user experience.

[0006] According to various embodiments, the present application discloses a cleaning unit comprising one or more cleaning sub-units, each cleaning sub-unit comprising a holding strip constructed of a first material, and a front scraping part and / or a rear scraping part fixed opposite to the holding strip and constructed of a second material, the front scraping part being used to couple with the filter plate air inlet side surface, and the rear scraping part being used to couple with the filter plate rear side surface, wherein the hardness of the first material is greater than the hardness of the second material, and the hardness of the second material is less than the hardness of the filter plate.

[0007] The above-mentioned scheme can improve the rigidity effect of the cleaning sub-unit, ensure good contact between the scraping part and the filter plate during cleaning, clean efficiently and comprehensively, the hardness of the front scraping part and the rear scraping part is less than the material of the filter plate, the adhesion of the one or more cleaning sub-units and the filter plate is ensured, oil stains can be effectively removed without scratching the filter plate, the integrity and service life of the filter plate are protected, the filtering performance is ensured, and the cleaning effect is ensured. Multiple cleaning sub-units can simultaneously or selectively clean multiple layers of filter plates, improve cleaning efficiency, reduce cost, and ensure stable operation of the filtering system.

[0008] In various embodiments, the second material coats the retaining strip and is integrally formed with the front and rear scraping portions, which can enhance the overall stability and reliability of the cleaning subunit, reduce the risk of component loosening and displacement, and improve the reliability and durability; optimize the scraping performance, ensure uniformity of the angle and force of the front and rear scraping portions in contact with the filter plate, more effectively remove dirt, avoid uneven scraping, and improve the cleanliness of the filter plate.

[0009] In various embodiments, the second material is formed by a mold to coat the retaining strip and integrally form the front and rear scraping portions. The above scheme can ensure consistency and standardization, strong adaptability, uniform material distribution, stable structure, reduced damage risk, high production efficiency, low cost, good cleaning effect, and high reliability.

[0010] In various embodiments, the second material is silica gel and is formed by a mold to coat the retaining strip and integrally form the front and rear scraping portions. The silica gel as the second material is molded to coat and integrally form the front and rear scraping portions, which has cleaning and protection functions. It has good flexibility, tightly fits the filter plate to efficiently remove dirt, and prevents scratching the filter plate; mold forming ensures precision and consistency, making the cleaning effect stable; silica gel has low cost, high production efficiency combined with molds, is economical and practical, strong chemical stability, suitable for various working conditions, good durability, and effectively ensures the stable operation of the filtration system.

[0011] In various embodiments, the retaining strip is in a sheet shape with the width extension direction being the same as that of the one or more cleaning subunits. The above scheme can improve the rigidity of the one or more cleaning subunits.

[0012] In various embodiments, the retaining strip is in a metal sheet shape with the width extension direction being the same as that of the one or more cleaning subunits. The metal sheet has high strength and the same width extension direction as the cleaning subunits, which can provide strong lateral support, maintain structural stability, and maintain efficient cleaning; when encountering uneven external force, the metal sheet retaining strip can evenly disperse the force, and the continuous sheet shape and same direction layout can avoid stress concentration, prolong the service life of the component, and reduce maintenance; in the case of heated cleaning or high-temperature environment, the good thermal conductivity of the metal can prevent local overheating, stabilize the material quality, and improve the cleaning reliability.

[0013] In various embodiments, the front and rear scraping portions extend along the length direction of the cleaning sub-unit. With the above structure, a longer contact line with the filter plate surface can be formed during cleaning, increasing the coverage area of a single scraping and thus improving the cleaning efficiency and reducing the time and number of operations required for cleaning the filter plate. Meanwhile, extending along the length direction makes the scraping portions more evenly stressed during operation, reducing the differences in scraping effect or uneven pressure on the filter plate caused by uneven local stress. This helps to stabilize the working state of the cleaning unit, reduce vibration and shaking, and thus reduce the noise during equipment operation.

[0014] In various embodiments, the front and rear scraping portions are respectively configured on the upper and lower edges of the same side of the cleaning sub-unit. The front and rear scraping portions are placed on the upper and lower edges of the same side of the cleaning sub-unit, allowing for synchronous cleaning on both sides and improving efficiency.

[0015] In various embodiments, the front and rear scraping portions are respectively configured on the upper and lower edges of the same side of the cleaning sub-unit, and the two ends of the front and rear scraping portions are connected in opposite directions. In use, the connection of the ends enhances the overall structural strength, effectively disperses the stress, greatly prevents damage to the ends of the scraping portions caused by stress concentration, and ensures the integrity and durability of the cleaning unit.

[0016] According to various embodiments, the present application also discloses a filter plate unit cleaning assembly, comprising: a filter plate, a cleaning unit, and one or more first connecting members; the filter plate is configured with a plurality of filter channels and one or more first channels extending to the edges near both ends; the cleaning unit comprises a first cleaning sub-unit and a second cleaning sub-unit, which are arranged on the front side and the rear side of the first filter plate perpendicular to the extension direction of the first channel; and the one or more first connecting members connect the first and second cleaning sub-units through the first channel.

[0017] In various embodiments, further comprising one or more second connecting members, which are fixedly arranged on the second cleaning sub-unit and extend in the direction of the air flow.

[0018] According to various embodiments, the present application also discloses an oil fume separation and cleaning device, comprising: two filter plate units, two cleaning units, and a driving mechanism; the two filter plate units are arranged apart from each other, and each filter plate unit comprises one or more layers of filter plates; the two cleaning units are laterally extended and movable to cooperate with the two filter plate units, and each cleaning unit is configured with at least a front scraping portion coupled to the air inlet side surface of each layer of filter plates; the driving mechanism comprises a driver and a rigid transmission member connecting the two cleaning units and the driver, and the driver is at least partially installed between the two filter plate units; the driver drives the two filter plate units to scrape at least one side surface of each layer of filter plates to achieve automatic cleaning of the oil fume separation device.

[0019] The oil fume separation and cleaning device disclosed in this application is equipped with two filter plate units, each containing one or more filter plates. The drive unit is at least partially installed between the two filter plate units, optimizing space utilization and making the overall structure more compact. The design of the two cleaning units allows for effective cleaning of the filter plate surfaces. The drive mechanism design enables the drive to drive the two cleaning units synchronously via a rigid transmission component, achieving automatic scraping and cleaning of at least the air inlet side surface of each filter plate layer. The modular design facilitates the upgrading and replacement of the oil fume separation and cleaning device, enabling technological advancements. The multi-layer design of the filter plate units significantly enhances the oil fume separation effect, effectively blocking and filtering particulate matter and grease in the oil fumes.

[0020] According to various embodiments, this application also discloses a range hood, comprising: a smoke collection section, a wind box section, and an oil fume separation and cleaning device; the smoke collection section has a planar adsorption panel, the adsorption panel having two horizontally arranged outer oil filtration areas, a partition between the two outer oil filtration areas, and a driver installed on the rear side of the partition. The wind box section is connected to the smoke collection section and is equipped with a fan assembly for generating adsorption airflow; the oil fume separation and cleaning device is installed inside the adsorption panel, and two filter plate units are respectively installed inside the corresponding outer oil filtration areas; the cleaning unit has a rear scraping part for cleaning the rear surface of the outer oil filtration areas. Attached Figure Description

[0021] Figure 1 This is a 3D schematic diagram of the cleaning unit.

[0022] Figure 2 This is a three-dimensional schematic diagram of the filter plate unit viewed in section along the axis of the first connecting member.

[0023] Figure 3 This is a 3D diagram of the cleaning unit from another angle.

[0024] Figure 4 This is a three-dimensional schematic diagram of two cleaning sub-units and filter plates.

[0025] Figure 5 This is a three-dimensional schematic diagram of the two cleaning sub-units and the rear angle of the filter plate.

[0026] Figure 6 This is a three-dimensional schematic diagram of the two cleaning sub-units and the filter plate from another angle.

[0027] Figure 7 This is a three-dimensional cross-sectional view of the two cleaning sub-units and the filter plate along the water surface section of the first connecting member.

[0028] Figure 8 This is a perspective view of an oil fume separation and cleaning device according to another embodiment of this application.

[0029] Figure 9 is a perspective view of the oil fume separating and cleaning device of another embodiment of the present application from another angle

[0030] Figure 10 is Figure 9 is a perspective view along the axis of symmetry

[0031] Figure 11 is a partial exploded view of the oil fume separating and cleaning device of another embodiment of the present application

[0032] Figure 12 is a perspective view of the oil fume separating and cleaning device of another embodiment of the present application from another position

[0033] Figure 13 is a perspective view of the oil fume separating and cleaning device of another embodiment of the present application assembled in a panel member

[0034] Figure 14 is a perspective view of the oil fume separating and cleaning device of another embodiment of the present application assembled in a panel member from another angle

[0035] Figure 15 is an exploded view of the oil fume separating and cleaning device of another embodiment of the present application with a panel member Figure 1

[0036] Figure 16 is an exploded view of the oil fume separating and cleaning device of another embodiment of the present application with a panel member Figure 2

[0037] Figure 17 is a perspective view of the first fume collecting shell assembly and the oil fume separating and cleaning device

[0038] Figure 18 is a perspective view of the first fume collecting shell assembly and the oil fume separating and cleaning device from another angle

[0039] Figure 19 is a perspective view of the first fume collecting shell assembly and the oil fume separating and cleaning device

[0040] Figure 20 is a perspective view of the drive mechanism

[0041] Figure 21 is an exploded view of the drive mechanism

[0042] Figure 22 is a sectional view of the drive mechanism along the axis of symmetry

[0043] Figure 23 is a perspective view of the filter plate unit and the cleaning unit of another embodiment

[0044] Figure 24Fig. 6 is a perspective view of the filter plate unit and cleaning unit of another embodiment from another angle

[0045] Figure 25 Fig. 7 is a perspective view of the filter plate unit and cleaning unit of another embodiment along the first connecting member axis

[0046] Figure 26 Fig. 8 is an exploded view of the filter plate unit of another embodiment

[0047] Figure 27 Fig. 9 is an exploded view of the filter plate unit of another embodiment from the rear side angle

[0048] Figure 28 Fig. 10 is a perspective view of an embodiment of the range hood of the present application DETAILED DESCRIPTION

[0049] The technical solutions of the present application will be described below in conjunction with the drawings and specific embodiments.

[0050] The present application generally relates to a cleaning unit, a filter plate unit cleaning assembly, an oil fume separation and cleaning device, a filter plate unit, a smoke collection portion, and a range hood. The "front side" and "rear side" of the present application generally refer to the side of the range hood facing the panel on the direction of the airflow of the oil fume separation and cleaning device, and the back side is the rear side. Of course, the front and rear sides can be defined by the specific orientation in a certain component.

[0051] Referring to Figures 1 to 4 The cleaning unit 3 provided by the present application includes one or more cleaning sub-units 3.1, 3.2, each cleaning sub-unit includes a retaining strip 3.11, 3.12 constructed of a first material, and a front scraping portion 301 fixed opposite the retaining strip 3.11, 3.12 and constructed of a second material, the front scraping portion 301 is used to couple with the air inlet side surface of each layer of filter plate 2.1, 2.2, wherein the hardness of the first material is greater than the hardness of the second material, and the hardness of the second material is less than the hardness of the filter plate 2.1, 2.2.

[0052] Each cleaning sub-unit can also be provided with only a rear scraping portion 302 fixed opposite the retaining strip 3.11, 3.12 and constructed of a second material, the rear scraping portion 302 is used to couple with the rear side surface of each layer of filter plate 2.1, 2.2. With the above scheme, the rear side of each layer of filter plate 2.1, 2.2 can be cleaned at the same time, and the cleaning effect is improved.

[0053] In a preferred embodiment, each cleaning sub-unit is provided with a front scraping portion 301 and a rear scraping portion 302 at the same time, and the air inlet side surface and the rear side surface of the corresponding filter plate 2.1, 2.2 can be cleaned at the same time.

[0054] One or more cleaning sub-units 3.1, 3.2 of the present application, which are configured with holding strips 3.11, 3.12, can improve the rigidity of the cleaning sub-units 3.1, 3.2, ensure good contact between the front and rear scraping parts 301, 302 and the corresponding surface of the filter plate during cleaning, clean efficiently and comprehensively, and at the same time, the hardness of the front and rear scraping parts 301, 302 is less than that of the material of the filter plate 2.1, 2.2, which ensures the fit of the one or more cleaning sub-units 3.1, 3.2 with the filter plate 2.1, 2.2, effectively removes oil stains and avoids scratching the filter plate 2.1, 2.2, protects the integrity and service life of the filter plate 2.1, 2.2, ensures the filtering performance, and guarantees the cleaning effect. Multiple cleaning sub-units 3.1, 3.2 can simultaneously or selectively clean multiple layers of filter plates 2.1, 2.2, improve cleaning efficiency, reduce costs, and ensure stable operation of the filtration system.

[0055] In various embodiments, the second material covers the holding strips 3.11, 3.12 and is integrally formed with the front and rear scraping parts 301, 302. The above scheme can enhance the integrity and stability of the cleaning sub-units 3.1, 3.2, reduce problems such as loose displacement of parts, improve reliability and durability, optimize scraping performance, ensure uniformity of the angle and force of contact between the front and rear scraping parts 301, 302 and the filter plate 3.1, 3.2, more effectively remove dirt, avoid uneven scraping, and improve the cleanliness of the filter plate 2.1, 2.2.

[0056] In various embodiments, the second material covers the holding strips 3.11, 3.12 by mold forming. The second material can be, for example, silica gel or other commonly known suitable plastics, resins, etc. The above scheme can ensure consistency and standardization, strong adaptability, uniform material distribution, stable structure, reduced damage risk, high production efficiency, low cost, one-piece forming to avoid assembly errors, good cleaning effect, and high reliability.

[0057] In preferred embodiments, the second material is silica gel and covers the holding strips 3.11, 3.12 by mold forming and integrally forms the front and rear scraping parts 301, 302. Silica gel as the second material covers and integrally forms the scraping parts 301, 302 by mold forming, combining cleaning and protection functions. It has good flexibility, tightly fits the filter plate to efficiently remove dirt, and prevents scratching the filter plate 2.1, 2.2; mold forming ensures precision and consistency, making the cleaning effect stable; silica gel has low cost, high production efficiency combined with mold, is economical and practical; has strong chemical stability, adapts to various working conditions, has good durability, and effectively ensures the continuous and stable operation of the filtration system.

[0058] The holding strips 3.11, 3.12 are metal sheets, such as steel sheets, and can also be other materials that meet the requirements.

[0059] In various embodiments, the retaining strips 3.11, 3.12 are metal sheets with the width extension direction identical to that of the one or more cleaning sub-units 3.1, 3.2. The metal sheet has high strength, the width is in the same direction as that of the one or more cleaning sub-units 3.1, 3.2, can provide strong lateral support for the one or more cleaning sub-units 3.1, 3.2, maintain structural stability, and maintain high cleaning efficiency. When encountering uneven external force, the metal sheet-shaped retaining strip can uniformly disperse the force, and the continuous sheet shape and the same direction layout can avoid stress concentration, prolong the service life of the component, and reduce maintenance. In the case of heating cleaning or high-temperature environment, the good thermal conductivity of the metal can prevent local overheating, maintain material stability, and improve cleaning reliability.

[0060] The front wiping part 301 and the rear wiping part 302 extend along the length direction of the cleaning sub-unit 3.1, 3.2. This structure can form a longer contact line with the surface of the filter plate 2.1, 2.2 during cleaning, increase the coverage area of a single wiping, and thus improve the cleaning efficiency and reduce the time and operation frequency required for cleaning the filter plate. At the same time, extending along the length direction makes the front wiping part 301 and the rear wiping part 302 more uniformly stressed during work, reducing the difference in wiping effect caused by uneven local stress or uneven pressure on the filter plate 2.1, 2.2. This helps to stabilize the working state of the cleaning unit, reduce vibration and shaking, and thus reduce the noise during equipment operation.

[0061] The front wiping part 301 and the rear wiping part 302 are respectively configured on the upper edge and the lower edge of the same side of the cleaning sub-unit. When the one or more cleaning sub-units 3.1, 3.2 move for cleaning, the same part can be wiped twice, and the efficiency can be improved.

[0062] In various embodiments, the front wiping part 301 and the rear wiping part 302 are respectively configured on the upper edge and the lower edge of the same side of the cleaning sub-unit, and the two end parts of the front wiping part 301 and the rear wiping part 302 are connected in opposite directions. In use, the connection of the end parts enhances the overall structural strength, effectively disperses the stress, greatly prevents the end parts of the wiping part from being damaged due to stress concentration, and ensures the integrity and durability of the cleaning unit 3.

[0063] Referring to Figures 1 to 3 In the embodiment shown, each cleaning unit 3 includes a first cleaning sub-unit 3.1 and a second cleaning sub-unit 3.2 arranged on the front side of the first filter plate 2.1 and the second filter plate 2.2. The first cleaning sub-unit 3.1 is provided with a first front wiping part 301a for cleaning the front side of the first filter plate 2.1, and the second cleaning sub-unit 3.2 is provided with a second front wiping part 301b for cleaning the front side of the second filter plate 2.2.

[0064] Referring to Figures 1 to 7In another aspect, the filter plate unit cleaning assembly comprises a first filter plate 2.1, a cleaning unit 3, and one or more first connecting members 3.3. The filter plate 2.1 is configured with a plurality of filter channels 2.1' and one or more first channels 2.10 extending close to the edge; the cleaning unit 3 comprises a first cleaning subunit 3.1 and a second cleaning subunit 3.2, which are arranged on the front side and the back side of the first filter plate 2.1 perpendicular to the extension direction of the first channel 2.10; and the one or more first connecting members 3.3 connect the first cleaning subunit 3.1 and the second cleaning subunit 3.2 through the first channel 2.10. This design integrates the first filter plate 2.1 and the two cleaning units 3.1, 3.2 into an assembly, facilitating assembly and maintenance, and ensuring cleaning effect.

[0065] In some improvements, one or more second connecting members 3.4 are further included, which are fixedly arranged on the second cleaning subunit 3.2 and extend in the direction of the air flow. The second connecting member 3.4 is used to connect a rigid transmission member 4.2, such as through a threaded fitting connection, such as that the second connecting member 3.4 is provided with a threaded part, and the rigid transmission member 4.2 is provided with a connecting hole, through which the second connecting member 3.4 is fixedly connected through a nut.

[0066] Referring to Figures 8 to 13 , Figures 23 to 27 In one embodiment of the oil fume separation and cleaning device a, two filter plate units 2, two cleaning units 3, and a driving mechanism 4 are included. The two filter plate units 2 are arranged apart from each other, and each filter plate unit 2 comprises a first filter plate 2.1 and a second filter plate 2.2. The two cleaning units 3 extend transversely and are movable to cooperate with the two filter plate units 2, and each cleaning unit 3 is configured with at least a front scraping part 301 coupled to the air inlet side surface of each layer of filter plates. The driving mechanism 4 comprises a driver 4.1 and a rigid transmission member 4.2 connecting the two cleaning units 3 and the driver 4.1, and the driver 4.1 is at least partially mounted between the two filter plate units 2. The driver 4.1 drives the two filter plate units 2 to scrape at least the air inlet side surface of each layer of filter plates, thereby achieving automatic cleaning of the oil fume separation device. In other embodiments, the filter plate unit 2 can comprise only one filter plate or three or more filter plates, which can be selected according to the cleaning effect.

[0067] The oil fume separation and cleaning device a of the present application is provided with two filter plate units 2, each of which comprises one or more filter plates, and a driver 4.1 is at least partially mounted between the two filter plate units 2, thereby optimizing the space utilization and making the overall structure more compact, and the design of the two cleaning units 3 can effectively clean the surface of the filter plate. The design of the driving mechanism 4 enables the driver 4.1 to drive the two cleaning units 3 to work synchronously through the rigid transmission member 4.2, thereby realizing automatic scraping and cleaning of at least the air inlet side surface of each layer of filter plate, and the modular design can facilitate the upgrading of the oil fume separation and cleaning device a and realize technical upgrading. The multi-layer design of the filter plate unit 2 can significantly enhance the oil fume separation effect and effectively block and filter particulate matter and oil in the oil fume.

[0068] Referring to Figures 8 to 22 , the driver 4.1 can include a motor 4.11 and a screw nut mechanism 4.12, the nut member 4.121 of the screw nut mechanism 4.12 is connected with the rigid transmission member 4.2, and the screw rod 4.122 of the screw nut mechanism 4.12 is mounted between the two filter plate units 2 along the length direction. Due to the arrangement of the two filter plate units 2 of the present application, a compartment is formed between them, and the arrangement and mounting position of the driver 4.1 make the product structure compact and the driving connection more reliable.

[0069] In order to facilitate installation and provide a movable channel for the rigid transmission member 4.2, the driving mechanism 4 is provided with a driving base 4.13, the motor 4.11 is mounted on the upper part of the driving base 4.13, the screw rod 4.122 of the screw nut mechanism 4.12 is mounted along the length direction of the driving base 4.13, the driving base 4.13 is at least partially mounted between the two filter plate units 2, and the two ends of the driving base 4.13 are provided with driving mounting parts 4.14. The use of the screw nut mechanism 4.12 for driving integrates the motor 4.11 and the screw nut mechanism 4.12 in the driving base 4.13, thereby providing a movable space for the rigid transmission member 4.2 and ensuring smooth movement thereof, which not only simplifies the structure, improves the space utilization, but also ensures the accuracy and reliability of the transmission.

[0070] The transmission between the motor 4.11 and the screw rod 4.122 can be achieved through a worm gear, of course, other coupling methods can also be used, such as fixed connection between the motor output shaft and the screw rod 4.122. In addition, other known connection methods can also be used to achieve transmission coupling.

[0071] Referring to Figures 8 to 12 , the rigid transmission member 4.2 is of an integral structure, the middle part thereof is transmissionally coupled with the driver 4.1, the two ends thereof extend to the two sides of the filter plate unit 2, and the rigid transmission member 4.2 is arranged at the rear side of the two filter plate units 2.

[0072] The rigid transmission member 4.2 is formed by sheet metal processing in one embodiment, such as by bending the long sides on both sides to increase structural strength. Of course, in other embodiments, the rigid transmission member 4.2 can also be processed by other existing processes, such as die casting, extrusion molding, etc., and materials such as steel, aluminum alloy, etc.

[0073] Referring to Figures 17 to 20 , the middle part of the rigid transmission member 4.2 is coupled with the driver 4.1, and the two ends extend to both sides of the filter plate support 1. The rigid transmission member 4.2 is arranged at the rear side of the two filter plate units 2, and the rigid transmission member 4.2 is provided with a guide mechanism 4.3 on both sides of the filter plate support 1. The guide mechanism 4.3 can ensure stable transmission and realize efficient synchronous operation of the two cleaning units 3. Transmission coupling refers to the connection of the middle part of the rigid transmission member 4.2 with the output part of the driver 4.1, so that the driver 4.1 can drive the rigid transmission member 4.2 to move when the driver 4.1 works. For example, when the driver 4.1 adopts a motor and a screw nut mechanism, the rigid transmission member 4.2 is connected with the nut of the screw nut mechanism; when the driver 4.1 adopts a linear motor or the like, the rigid transmission member 4.2 is connected with the conveying end.

[0074] Referring to Figure 8 , Figure 11 and Figure 16 , the guide mechanism 4.3 includes one or more guide wheels 4.31 mounted at both ends of the rigid transmission member 4.2, and guide rails 4.32 fixedly arranged on the side parts of the two filter plate units 2.

[0075] Referring to Figures 1 to 3 , Figures 23 to 27 In some embodiments, the filter plate unit 2 can include one layer of filter plates (2.1, 2.2), and each cleaning unit 3 includes a cleaning subunit (3.1, 3.2) arranged on the front side of each layer of filter plates (2.1, 2.2). The cleaning subunit (3.1, 3.2) is configured with a front scraping part 301 for scraping the air inlet side of each layer of filter plates (2.1, 2.2). The shape of the front scraping part 301 is adapted to the shape of the front side of the corresponding filter plate (2.1, 2.2) to ensure the cleaning effect.

[0076] In the preferred embodiment of the present application, each filter plate unit 2 comprises two or more filter plates (2.1, 2.2), which can improve the filtering efficiency. The cleaning unit 3 is equipped with a cleaning subunit (3.1, 3.2) corresponding to each layer of filter plates (2.1, 2.2), ensuring that the filter plates (2.1, 2.2) are thoroughly cleaned. The cleaning subunits (3.1, 3.2) are connected by one or more first connecting members 3.3, and the filter plate (2.1) between the two cleaning subunits (3.1, 3.2) is connected by one or more first channels 2.10 that avoid the first connecting members 3.3, ensuring structural stability and facilitating cleaning operations. The cleaning unit 3 is configured with one or more second connecting members 3.4 that pass through one or more second channels 2.20 of the last side filter plate 2.2, and the rigid transmission member 4.2 is connected to the cleaning unit 3 through the second connecting members 3.4, allowing the rigid transmission member 4.2 to be firmly connected to the cleaning unit and combining the transmission and cleaning functions.

[0077] Specifically, referring to Figures 1 to 3 , Figures 23 to 27 , a specific embodiment of the filter plate unit 2 and the cleaning unit 3 is shown, the filter plate unit 2 includes two layers of filter plates, i.e., a first filter plate 2.1 and a second filter plate 2.2 arranged along the airflow direction, and each cleaning unit 3 includes a first cleaning subunit 3.1 and a second cleaning subunit 3.2 arranged on the front side of the first filter plate 2.1 and the second filter plate 2.2. The first cleaning subunit 3.1 is provided with a first front wiping part 301a for cleaning the front side of the first filter plate 2.1, and the second cleaning subunit 3.2 is provided with a second front wiping part 301b for cleaning the front side of the second filter plate 2.2.

[0078] The first cleaning subunit 3.1 and the second cleaning subunit 3.2 are connected by one or more first connecting members 3.3, and the first filter plate 2.1 between the first cleaning subunit 3.1 and the second cleaning subunit 3.2 is configured with one or more first channels 2.10 that avoid the first connecting members 3.3. The cleaning unit 3 is configured with one or more second connecting members 3.4 that pass through one or more second channels 2.20 of the last side second filter plate 2.2, and the rigid transmission member 4.2 is connected to the cleaning unit 3 through the second connecting members 3.4.

[0079] Attached Figures 1 to 7 In the embodiment shown, the first cleaning subunit 3.1 and the second cleaning subunit 3.2 are connected by the first connecting member 3.3, and the first filter plate 2.1 between the two first cleaning subunits 3.1 and the second cleaning subunit 3.2 is configured with the first channel 2.10 that avoids the first connecting member 3.3. The second filter plate 2.2 is configured with the second channel 2.20, the second cleaning subunit 3.2 is configured with the second connecting member 3.4 that passes through the second channel 2.20, and the rigid transmission member 4.2 is connected to the cleaning unit 3 through the second connecting member 3.4.

[0080] The first connecting piece 3.3 is arranged in two groups, and the first channel 2.10 is correspondingly arranged in two lines. Figures 20 to 24 In the embodiment shown, the second filter plate 2.2 is configured with two second channels 2.20, and the second cleaning sub-unit 3.2 is configured with a second connecting piece 3.4 passing through the two second channels 2.20, and the rigid transmission member 4.2 is connected with the cleaning unit 3 through the second connecting piece 3.4.

[0081] In other embodiments, the first connecting piece 3.3 can be arranged in three or more, and the first channel 2.10 is correspondingly arranged in three or more, and the second filter plate 2.2 is configured with three or more second channels 2.20, and the second cleaning sub-unit 3.2 is configured with a second connecting piece 3.4 passing through each second channel 2.20. Specifically, the first connecting piece 3.3 is arranged in three groups, which can make the first cleaning sub-unit 3.1 and the second cleaning sub-unit 3.2 more stable. Correspondingly, the second channel 2.20 can be arranged in three, and the second connecting piece 3.4 is correspondingly arranged in three. Figure 7 In the embodiment shown in 23 to

[0082] , the first connecting piece 3.3 is a bolt assembly, and the first connecting piece 3.3 is arranged with a connecting hole on the two first cleaning sub-units 3.1 and the second cleaning sub-unit 3.2. Figures 1 to 3 Figure 27 In other embodiments, the first connecting piece 3.3 can be a screw and a nut, wherein the nut is installed on the first cleaning sub-unit 3.1, such as inlaid fixation, mold forming fixation, and a corresponding connecting hole is configured on the second cleaning sub-unit 3.2, and the screw is connected with the nut through the second cleaning sub-unit 3.2 and the first channel 2.10, thereby connecting the first cleaning sub-unit 3.1, the first filter plate 2.1 and the second cleaning sub-unit 3.2 into one assembly.

[0083] Of course, in other embodiments, the first connecting piece 3.3 can also be a double-headed bolt, and the two first cleaning sub-units 3.1 and the second cleaning sub-unit 3.2 are both configured with a nut.

[0084] In order to ensure the cleaning effect, the first front wiping part 301a is in contact with the front side of the first filter plate 2.1, and similarly, the second front wiping part 301b is in contact with the front side of the second filter plate 2.2.

[0085] In other embodiments, the first connecting piece 3.3 can be arranged in three or more, and the first channel 2.10 is correspondingly arranged in three or more, and the second filter plate 2.2 is configured with three or more second channels 2.20, and the second cleaning sub-unit 3.2 is configured with a second connecting piece 3.4 passing through each second channel 2.20. Specifically, the first connecting piece 3.3 is arranged in three groups, which can make the first cleaning sub-unit 3.1 and the second cleaning sub-unit 3.2 more stable. Correspondingly, the second channel 2.20 can be arranged in three, and the second connecting piece 3.4 is correspondingly arranged in three.

[0086] In other embodiments, the first connecting piece 3.3 can be arranged in three or more, and the first channel 2.10 is correspondingly arranged in three or more, and the second filter plate 2.2 is configured with three or more second channels 2.20, and the second cleaning sub-unit 3.2 is configured with a second connecting piece 3.4 passing through each second channel 2.20. Specifically, the first connecting piece 3.3 is arranged in three groups, which can make the first cleaning sub-unit 3.1 and the second cleaning sub-unit 3.2 more stable. Correspondingly, the second channel 2.20 can be arranged in three, and the second connecting piece 3.4 is correspondingly arranged in three. Figures 1 to 3 Figure 27 ​​, the front scraping part 301 is adapted to the shape of the scraped surface, as shown in the embodiment, the second filter plate 2.2 is configured with a plurality of arc-shaped blocking parts 2.21', and the filter channels 2.2' of the second filter plate 2.2 are configured between adjacent blocking parts 2.21', which can be spaced as shown in the drawing (in order to increase the structural strength), or can be continuous. The second front scraping part 301b is configured with a plurality of arc-shaped protrusions which are adapted to the shape thereof.

[0087] As shown in the embodiments of Figure 13 , Figure 21 and Figures 25 to 27 , the main body part (i.e. the filtering part) of the first filter plate 2.1 is in a planar structure as a whole, and the filter channels 2.1' of the first filter plate 2.1 are in a plurality of rows of spaced-apart holes, such as circular holes, and of course in other embodiments they can be in other shapes, such as square holes, long strip-shaped holes, etc., and the side parts of the filter channels 2.1' are in planar blocking parts 2.11'. Figures 4 to 7 As shown in the embodiment of ,

[0088] the filter channels 2.1' of the first filter plate 2.1 are in square holes. Figures 4 to 7 As shown in the embodiment of ,

[0089] the first filter plate 2.1 can be designed with a bending part 2.11 at at least one opposite edge thereof, the bending part 2.11 is engaged with the air inlet side of the second filter plate 2.2, and the above-mentioned bending part 2.11 can improve the structural strength of the first filter plate 2.1 while keeping the main body part (i.e. the filtering part) of the first filter plate 2.1 at a certain distance from the air inlet side of the second filter plate 2.2.

[0090] It should be emphasized that the filter channels 2.1' of the first filter plate 2.1 are staggered with the filter channels 2.2' of the second filter plate 2.2, i.e. the filter channels 2.1' correspond to the arc-shaped blocking parts 2.21' of the second filter plate 2.2, and the blocking parts 2.11' correspond to the filter openings 2.2', so that the oil fume can be blocked multiple times to improve the separation effect.

[0091] The first filter plate 2.1 of the present application is preferably processed by cold plate processing, i.e. processed at room temperature to form, including hole processing, such as laser cutting, high precision, low cost, small deformation, and of course in other embodiments it can also be punched.

[0092] In other embodiments, the second filter plate 2.2 can also be processed by cold plate processing, in which case the main body part (i.e. the filtering part) is in a planar structure.

[0093] In some embodiments, one or more front sides of the cleaning sub-units (3.1, 3.2) are configured with rear scraping parts 302 for cleaning the rear surface of the filter plate 2.1 located on the front side.

[0094] Referring to Figures 1 to 3 , 23 to Figure 27 In the embodiment shown, the front side of the first cleaning subunit 3.1 is configured with a first rear wiping part 302a for cleaning the rear side of the outer oil filtering area 6.10' of the adsorption panel 6.1', and the front side of the second cleaning subunit 3.2 is configured with a second rear wiping part 302b for cleaning the rear side of the first filter panel 2.1. The rear wiping part 302 is flexible, which can ensure the cleaning effect. The above scheme can more comprehensively clean the oil accumulation on the rear side surface of the corresponding filter panel.

[0095] In other embodiments, the filter panel unit 2 can include three or more filter panels, and the cleaning unit 3 is configured with three or more cleaning subunits arranged at the air inlet side of each filter panel, and the adjacent cleaning subunits are connected by one or more first connecting parts 3.3.

[0096] Referring to Figures 13 to 20 , the oil fume separation and cleaning component of the present application comprises: two laterally arranged outer oil filtering areas 6.10' and an oil fume separation and cleaning device, the outer oil filtering area 6.10' is configured in the planar adsorption panel 6.1', and a partition 6.11' is configured between the two outer oil filtering areas 6.10'; the outer oil filtering area 6.10' driver 4.1 is at least partially installed at the rear side of the partition 6.11'; the driver 4.1 drives the two filter panel units 2 to wipe at least the air inlet side surface of each filter panel and the outer oil filtering area 6.10' to realize automatic cleaning of the oil fume separation component. The filter channel of the outer oil filtering area 6.10' can be a grid-shaped strip hole as shown in the drawings, or other shapes such as a circular hole, a square hole, etc.

[0097] Specifically in Figures 13 to 19 In the embodiment shown, the filter panel unit 2 includes two filter panels, i.e. the first filter panel 2.1 and the second filter panel 2.2, and each cleaning unit 3 includes a first cleaning subunit 3.1 and a second cleaning subunit 3.2 arranged at the front side of the first filter panel 2.1 and the second filter panel 2.2; the first cleaning subunit 3.1 is configured with a first front wiping part 301a for cleaning the front side of the first filter panel 2.1, the second cleaning subunit 3.2 is configured with a second front wiping part 301b for cleaning the front side of the second filter panel 2.2, the front side of the first cleaning subunit 3.1 is configured with a first rear wiping part 302a for cleaning the rear side of the outer oil filtering area 6.10' of the adsorption panel 6.1', and the front side of the second cleaning subunit 3.2 is configured with a second rear wiping part 302b for cleaning the rear side of the first filter panel 2.1. The rear wiping part 302 is flexible, which can ensure the cleaning effect. The above scheme can more comprehensively clean the oil accumulation on the rear side surface of the corresponding filter panel.

[0098] Referring to Figures 14 to 19, shows the assembly state diagram of the first smoke collecting shell assembly 6.1 (or part) of the smoke collecting part 6 and the oil fume separating and cleaning device a, the first smoke collecting shell assembly 6.1 includes a panel shell piece 6.11' configured as the front side shell of the first smoke collecting shell assembly 6.1 and a first smoke collecting shell side wall shell piece configured at the edge of the panel shell piece 6.11', the adsorption panel 6.1' is formed at the front side of the panel shell piece 6.11', and the panel shell piece 6.11' can be formed by stamping of hardware.

[0099] In an embodiment, the adsorption panel 6.1' is preferably processed by cold plate processing, including hole processing such as laser cutting, which has high precision, low cost and small deformation, and of course can also be punched in other embodiments.

[0100] In an embodiment, the panel shell piece 6.11' is formed by stamping of hardware, and the filter channel of the outer oil filtering area 6.10' is processed by laser cutting or stamping.

[0101] In an embodiment, the planar panel shell piece 6.11' is a thin plate piece, which is economical, and a separation connecting part 10 is installed inside the separation part 6.11', which can strengthen the adsorption panel 6.1'.

[0102] In an embodiment, the separation connecting part 10 is a sheet metal bending piece, which can be fixed inside the adsorption panel 6.1' by welding (such as spot welding), and of course can also be connected by other known methods such as screws and rivets. The two ends of the driving base 4.13 are installed outside the separation connecting part 10 through the driving mounting part 4.14, and of course the driving mounting part 4.14 can be connected with the separation connecting part 10 or can be installed on the panel shell piece 6.11', which can be fixed by connecting pieces such as screws.

[0103] In an embodiment, the lower side of the two outer oil filtering areas 6.10' is configured with a bottom mounting piece 1.1, which can be configured by welding, connecting pieces, riveting, etc., and the lower side of the filter plate unit 2 is installed on the bottom mounting piece 1.1, and specifically, the lower side of the filter plate unit 2 and the bottom mounting piece 1.1 can be fixed by positioning structure, such as configuring positioning protrusions on the lower side of the filter plate unit 2 and configuring positioning holes on the bottom mounting piece 1.1, and when the filter plate unit 2 is assembled, the positioning protrusions are inserted into the corresponding positioning holes.

[0104] The upper side of the filter plate unit 2 can be fixed by the upper mounting piece 1.3, such as pressing the upper side of the filter plate unit 2 by the upper mounting piece 1.3, and the upper mounting piece 1.3 is connected with the panel shell piece 6.11' by connecting pieces such as screws.

[0105] In one embodiment, the outer side of the two outer oil filtering areas 6.10' is configured with a side wall member 1.2, and the filter plate mounting area 100 for mounting the filter plate unit 2 is formed between the side wall member 1.2 and the partition connecting part 10.

[0106] In other embodiments, the upper mounting part 1.3 is fixedly mounted with the panel shell part 6.11', such as assembled by welding, connecting part, riveting, etc., and the filter plate upper connecting part is configured on the upper part of the filter plate unit 2, and the filter plate upper connecting part is connected with the upper mounting part 1.3 through a connecting part such as a screw. This kind of connection method is convenient and fast.

[0107] The bottom mounting part 1.1, the upper mounting part 1.3, the side wall member 1.2 and the partition connecting part 10 of the present application have a reinforcing effect on the panel shell part 6.11'.

[0108] Referring to Figures 8 to 19 It also includes a guide mechanism 4.3, which includes one or more guide wheels 4.31 mounted at both ends of the rigid transmission member 4.2, and guide rails 4.32 fixedly arranged on the sides of the two filter plate units 2.

[0109] Specifically, the guide mechanism 4.3 can include one or more guide wheels 4.31 mounted at both ends of the rigid transmission member 4.2, and guide rails 4.32 configured on both sides of the filter plate support 1. The cooperation structure of the guide wheel 4.31 and the guide rail 4.32 is simple and stable, and is not easy to be stuck.

[0110] One scheme of the guide rail 4.32 is a planar guide rail, and the guide wheel 4.31 cooperates with the planar guide rail.

[0111] One scheme of the guide rail 4.32 is formed on the side wall member 1.2, such as a planar guide rail formed by sheet metal processing. Specifically, the side wall member 1.2 is processed into a U shape, and the bottom of the two side walls is a planar guide rail.

[0112] In other embodiments, the guide wheels 4.31 are arranged laterally, and the side surface of the side wall member 1.2 is configured with a guide rail 4.32.

[0113] The guide wheel 4.31 can be connected to both ends of the rigid transmission member 4.2 through the guide wheel support 4.321, and this structure is convenient to manufacture, install and maintain.

[0114] In some embodiments, two pairs of guide wheels 4.31 are mounted on each guide wheel support 4.321, which can increase the contact points of both ends of the rigid transmission member 4.2 and the filter plate support 1, and can maintain the stability of the force when the cleaning unit 3 encounters oil accumulation with larger resistance.

[0115] Of course in an embodiment, the guiding mechanism 4.3 can be a linear sliding guide mechanism, such as a slide rail installed on both sides of the filter plate support 1, and a sliding block installed on the outer side of the filter plate unit 2.

[0116] Referring to Figures 13 to 19 and Figure 28 , another aspect of the present application provides a range hood, comprising: a smoke collecting part 6, a wind box part 7 and an oil fume separating and cleaning device; the smoke collecting part 6 comprises a first smoke collecting shell assembly 6.1 and a second smoke shell assembly 6.2, the lower part of the first smoke collecting shell assembly 6.1 is connected to the second smoke shell assembly 6.2 through a hinge mechanism h, and the upper part of the first smoke collecting shell assembly 6.1 is detachably connected to the second smoke shell assembly 6.2; a planar adsorption panel 6.1' is arranged on the front side of the first smoke collecting shell assembly 6.1, and the adsorption panel 6.1' is provided with two outer layer oil filtering areas 6.10' arranged transversely. The wind box part 7 is connected to the second smoke shell assembly 6.2 and is provided with a fan assembly for generating an adsorption air flow. The oil fume separating and cleaning device is installed inside the adsorption panel 6.1', and two filter plate units 2 are respectively installed inside the corresponding outer layer oil filtering areas 6.10'; the cleaning unit 3 is provided with a rear scraping part 302 for scraping the rear side surface of the outer layer oil filtering area 6.10'. With the above scheme, the first smoke collecting shell assembly 6.1 can be opened by turning over the upper part after being detached, thereby facilitating the maintenance of the oil fume separating and cleaning device.

[0117] A control panel e1 of the range hood is arranged on the front side of the upper part of the first smoke collecting shell assembly 6.1. The control panel e1 is integrated in the first smoke collecting shell assembly 6.1, which simplifies the structure of the second smoke shell assembly 6.2 and makes it easier to maintain the control panel e1.

[0118] The wiring port 4.15 of the driver 4.1 is electrically connected to the control circuit (not shown) of the range hood, and the control circuit is provided with a program for controlling the driver 4.1. The principle of the program for controlling the action of the driver 4.1 is known, and the present application applies it to the automatic cleaning of the separating device of the range hood.

[0119] In other embodiments, the cleaning unit 3 is further provided with a cleaning subunit for cleaning the outer surface of the adsorption panel 6.1', and the cleaning subunit is provided with a scraping part for scraping the outer surface of the adsorption panel 6.1'.

[0120] Of course, the cleaning subunit can be connected to the first cleaning subunit 3.1 through a third connecting piece, and the adsorption panel 6.1' is provided with a third channel for avoiding the third connecting piece. With the above scheme, the separating system can be more comprehensively cleaned.

[0121] A control panel e1 of the range hood is arranged on the front side of the upper part of the first smoke collecting shell assembly 6.1. The control panel e1 is integrated in the first smoke collecting shell assembly 6.1, which simplifies the structure of the second smoke shell assembly 6.2 and makes it easier to maintain the control panel e1.

[0122] The wiring port 4.15 of the driver 4.1 is electrically connected with the control circuit (not shown) of the range hood, and the principle of the program configured in the control circuit for controlling the driver 4.1 to act is known, and the application is applied to the automatic cleaning of the range hood separating device. Specifically, the control panel e1 can be configured with a control for starting the driver 4.1. Of course, according to the needs, the control circuit of the range hood can be configured to automatically start cleaning when the range hood is used and then turned off, or a certain period of automatic operation cleaning can be designed once.

[0123] According to the disclosure and teaching of the above description, those skilled in the art of the present application can also change and modify the above embodiments, and the present application is not limited to the specific embodiments disclosed and described above. Some modifications and changes of the present application should also fall within the protection scope of the claims of the present application.

Claims

1. Cleaning unit, characterized in that The cleaning unit comprises one or more cleaning sub-units (3.1, 3.2), each cleaning sub-unit (3.1, 3.2) comprises a holding strip (3.11, 3.12) made of a first material, and a front wiping part (301) and / or a rear wiping part (302) fixed opposite to the holding strip (3.11, 3.12) and made of a second material, the front wiping part (301) is used to couple with the air inlet side surface of the filter plate (2.1, 2.2), and the rear wiping part (302) is used to couple with the rear side surface of the filter plate (2.1, 2.2), wherein the hardness of the first material is greater than the hardness of the second material, and the hardness of the second material is less than the hardness of the filter plate (2.1, 2.2).

2. The cleaning unit according to claim 1, characterized in that The second material covers the holding strip (3.11, 3.12) and is integrally formed with the front wiping part (301) or / and the rear wiping part (302).

3. The cleaning unit of claim 2, wherein, The second material is formed by a mold to cover the holding strip (3.11, 3.12) and integrally form the front wiping part (301) or / and the rear wiping part (302); Or, the second material is silica gel and is formed by a mold to cover the holding strip (3.11, 3.12) and integrally form the front wiping part (301) or / and the rear wiping part (302).

4. The cleaning unit according to any one of claims 1 to 3, characterized in that The holding strip (3.11, 3.12) is in a sheet shape with the width extension direction being the same as the width extension direction of the one or more cleaning sub-units (3.1, 3.2); Or, the holding strip (3.11, 3.12) is in a metal sheet shape with the width extension direction being the same as the width extension direction of the one or more cleaning sub-units (3.1, 3.2).

5. The cleaning unit according to any one of claims 1 to 3, characterized in that The front wiping part (301) and the rear wiping part (302) extend along the length direction of the cleaning sub-unit.

6. The cleaning unit of claim 5, wherein, The front wiping part (301) and the rear wiping part (302) are respectively arranged on the upper edge and the lower edge of the same side of the cleaning sub-unit; Or, the front wiping part (301) and the rear wiping part (302) are respectively arranged on the upper edge and the lower edge of the same side of the cleaning sub-unit, and the two ends of the front wiping part (301) and the rear wiping part (302) are connected in opposite directions.

7. A filter plate unit cleaning assembly characterized by, Comprise: The filter plate (2.1) is configured with a plurality of filter channels (2.1') and one or more first channels (2.10) extending to both ends near the edge; The cleaning unit according to any one of claims 1 to 6, comprising a first cleaning sub-unit (3.1) and a second cleaning sub-unit (3.2), the first cleaning sub-unit (3.1) and the second cleaning sub-unit (3.2) are arranged on the front side and the rear side of the first filter plate (2.1) perpendicular to the extension direction of the first channel (2.10); One or more first connecting members (3.3) connect the first cleaning sub-unit (3.1) and the second cleaning sub-unit (3.2) through the first channel (2.10).

8. The filter plate unit cleaning assembly of claim 7, wherein, Further comprising one or more second connecting members (3.4), the one or more second connecting members (3.4) are fixedly arranged on the second cleaning sub-unit (3.2) and extend in the air flow direction.

9. An oil fume separating and cleaning device, characterized in that, Comprise: Two filter plate units (2) are arranged apart from each other, each filter plate unit (2) comprises one or more filter plates (2.1, 2.2); Two cleaning units (3) according to any one of claims 1 to 6, respectively extending transversely and movably cooperating with two filter plate units (2), each cleaning unit (3) being configured with at least the front scraping part (301) coupled with the air inlet side surface of each layer of filter plates (2.1, 2.2); A driving mechanism (4) comprising a driver (4.1) and a rigid transmission member (4.2) connecting the two cleaning units (3) and the driver (4.1), the driver (4.1) being at least partially mounted between the two filter plate units (2); The driver (4.1) drives the two filter plate units (2) to scrape at least one side surface of each layer of filter plates to achieve automatic cleaning of the oil fume separation device.

10. A range hood, characterized by Comprising: A smoke collecting part (6) configured with a planar adsorption panel (6.1'), the adsorption panel (6.1') being configured with two transversely arranged outer oil filtering areas (6.10'), a partition (6.11') being configured between the two outer oil filtering areas (6.10'), and the driver (4.1) being mounted at the rear side of the partition (6.11'); A wind box part (7) connected with the smoke collecting part (6) and configured with a fan assembly for generating an adsorption airflow; The oil fume separation and cleaning device according to claim 9, the driver (4.1) being mounted inside the adsorption panel (6.1'), and the two filter plate units (2) being respectively mounted inside the corresponding outer oil filtering areas (6.10'); the cleaning unit (3) being configured with a rear scraping part (302) for scraping the rear side surface of the outer oil filtering area (6.10').

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