Range hood

Abstract

The application discloses an oil fume extractor, and relates to the technical field of kitchen household appliances. The oil fume extractor comprises a filter assembly and an oil scraping assembly, the oil fume extractor forms an air inlet, the filter assembly is arranged at the air inlet, and the filter assembly comprises two filter screens arranged in parallel. The at least two filter screens at least partially overlap, the filter screens can be moved in a first direction to adjust the area of the overlapping part, the oil scraping assembly comprises a support and an oil scraping part arranged on the support, the two filter screens are in abutment with the oil scraping part, and the oil scraping part slides relative to the filter screens when the filter screens are moved in the first direction. The oil fume extractor provided by the application can conveniently clean the filter screens, thereby facilitating the oil fume extractor to maintain a better oil fume extraction effect. Moreover, the air inlet can be opened by moving the filter screens, thereby facilitating a user to maintain or clean the air inlet.

Description

Technical Field

[0001] This application relates to the field of kitchen appliance technology, and more specifically, to a range hood. Background Technology

[0002] The filters in related range hoods need to be removed and cleaned after a period of use; otherwise, the mesh will become clogged with grease, affecting the smoke extraction effect. Some filters are even fixed and cannot be disassembled, requiring only a cloth to clean the outer surface. After a period of use, the filter surface accumulates a lot of dirt, breeding bacteria and affecting the kitchen environment. Therefore, the filters in these range hoods are not easy to clean. Utility Model Content

[0003] The purpose of this application is to provide a range hood that allows for easy cleaning of the filter, thereby maintaining a good smoke extraction effect.

[0004] The embodiments of this application can be implemented as follows: This application provides a range hood, including a filter assembly and an oil scraping assembly. The range hood has an air inlet, and the filter assembly is disposed at the air inlet. The filter assembly includes at least two parallel filter screens, which at least partially overlap. The filter screens are movable in a first direction to adjust the area of ​​the overlapping portion. The oil scraping assembly includes a bracket and an oil scraping part disposed on the bracket. The filter screens abut against the oil scraping part. When the filter screens move in the first direction, the oil scraping part moves relative to the filter screens.

[0005] In an optional embodiment, the oil scraping assembly is disposed between the overlapping portions of the two filters. The oil scraping assembly includes at least two oil scraping parts, which are disposed on opposite sides of the bracket and respectively abut against the two filters.

[0006] In an optional embodiment, both the bracket and the oil scraper are strip-shaped and extend along a second direction, which is perpendicular to the first direction and parallel to the filter screen. The two ends of the bracket are connected to the air inlet on opposite sides in the second direction.

[0007] In an optional embodiment, the air inlet is provided with two slide rails extending along the first direction on opposite sides of the second direction, the second direction being perpendicular to the first direction and parallel to the filter screen; both ends of the filter screen in the second direction are slidably engaged with the slide rails.

[0008] In an optional implementation, the slide rail forms a groove, and the filter screen is embedded in the groove; Alternatively, the slide rail forms a strip-shaped protrusion, the filter screen has a frame with a groove, and the strip-shaped protrusion of the slide rail is embedded in the groove of the frame.

[0009] In an optional embodiment, the opposite two edges of the air inlet in the second direction are bent inward to form a first flange and a second flange, respectively. The two ends of the bracket in the second direction are connected to the first flange and the second flange, respectively. The second direction is perpendicular to the first direction and parallel to the filter.

[0010] In an optional embodiment, the material of the oil scraper is rubber.

[0011] In an alternative embodiment, the range hood includes multiple oil-scraping components, with each filter screen held by at least two oil-scraping components.

[0012] In an optional implementation, each filter screen is provided with a handle structure; Alternatively, the range hood includes a drive unit for driving the filter to move in a first direction.

[0013] In an optional implementation, the two filters have an expansion limit position with minimal overlap area, and when the two filters are in the expansion limit position, the air inlet is covered by the two filters.

[0014] The beneficial effects of the range hood provided in this application embodiment include: The range hood provided in this application includes a filter assembly and an oil scraping assembly. The range hood has an air inlet, and the filter assembly is disposed at the air inlet. The filter assembly includes at least two parallel filter screens. The at least two filter screens at least partially overlap, and the filter screens can move in a first direction to adjust the area of ​​the overlapping portion. The oil scraping assembly includes a bracket and an oil scraping part disposed on the bracket. Each filter screen abuts against the oil scraping part. When the filter screen moves in the first direction, the oil scraping part moves relative to the filter screen. When it is necessary to remove accumulated oil stains from the filter screen, simply move the filter screen along the first direction, causing the oil scraping part to move on the filter screen and scrape off the oil stains. This eliminates the need to remove the filter screen for cleaning, and also eliminates the need for the user to use additional cleaning items (such as a rag) to clean the filter screen, achieving self-cleaning of the range hood. Therefore, the range hood provided in this application embodiment facilitates filter screen cleaning, thereby helping the range hood maintain a good oil fume extraction effect. Furthermore, because the filter assembly uses at least two partially overlapping filter screens, when one screen moves and increases the overlapping area, not only can oil and dirt be scraped off, but the screen can also remain within the air inlet area without taking up extra space due to movement, thus improving the compactness of the equipment. Moreover, by moving the filter screen, the air inlet can be opened, making it convenient for users to maintain or clean the air inlet. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of a range hood in one embodiment of this application; Figure 2 This is a cross-sectional view of a range hood in one embodiment of this application; Figure 3 for Figure 2 Enlarged view of section III in the middle.

[0017] Icons: 100-Fume hood; 110-Second inner slide rail; 120-Second outer slide rail; 200-Main unit; 300-Exhaust pipe; 400-Filter assembly; 410-Filter screen; 411-Inner filter screen; 412-Outer filter screen; 420-Handle structure; 500-Oil scraper assembly; 510-Bracket; 520-Oil scraper; 600-Oil cup; 700-Panel assembly; 800-Control assembly. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0019] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0020] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0021] In the description of this application, it should be noted that if terms such as "upper," "lower," "inner," or "outer" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in during use, they are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0022] Furthermore, the terms "first" and "second" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0023] It should be noted that, where there is no conflict, the features in the embodiments of this application can be combined with each other.

[0024] In related technologies, when a large amount of grease accumulates on the filter of a range hood, the user needs to remove the filter for cleaning; or, without removing the filter, other cleaning tools (such as a cloth) can be used to clean the filter directly on the range hood. Both of these methods suffer from poor convenience and low cleaning efficiency.

[0025] To address the shortcomings of the aforementioned related technologies, this application provides a range hood that, by incorporating an oil scraping component and a movable filter, allows the oil scraping component and the filter to move relative to each other, thereby scraping away oil stains on the filter and achieving the purpose of cleaning the filter. This saves manpower and has high cleaning efficiency.

[0026] Figure 1 This is a schematic diagram of a range hood in one embodiment of this application; Figure 2 This is a cross-sectional view of a range hood in one embodiment of this application; Figure 3 for Figure 2 A magnified view of section III in the middle. (See image below.) Figures 1 to 3 As shown, the range hood provided in this embodiment includes a smoke collection hood 100, a main unit housing 200, an exhaust pipe 300, a filter assembly 400, and an oil scraping assembly 500. The smoke collection hood 100 forms an air inlet, the main unit housing 200 is connected above the smoke collection hood 100, and the exhaust pipe 300 passes through the main unit housing 200 and communicates with the smoke collection hood 100. A fan (not shown in the figure) is installed inside the main unit housing 200. The fan provides suction power so that air containing oil fumes can enter from the air inlet of the smoke collection hood 100 and be exhausted to the outside through the exhaust pipe 300. The filter assembly 400 is disposed at the air inlet and is used to filter the airflow entering the air inlet. The filter assembly 400 can prevent foreign objects from entering the range hood and can collect oil stains in the airflow. In other optional embodiments, the air inlet can be formed not only on the smoke collection hood 100 but also on other components of the range hood.

[0027] In this embodiment, the range hood further includes an oil cup 600, which is disposed below the air inlet and the filter assembly 400. The oil cup 600 is used to collect oil droplets from the filter assembly 400. Optionally, the range hood also includes a panel assembly 700, which can be controlled to move relative to the smoke collection hood 100, thereby opening or closing the air inlet. When the range hood is not in use, the panel assembly 700 can be used to close the air inlet, obscuring the air inlet and the filter assembly 400 to improve the aesthetics of the range hood. In other optional embodiments, the panel assembly 700 may be omitted.

[0028] Optionally, the fume hood 100 is also equipped with a control component 800, which allows users to control the range hood to perform related operations, such as turning on the power, turning off the power, switching modes, and adjusting the airflow. The control component 800 may include buttons or a touch screen.

[0029] In this embodiment, the filter assembly 400 includes at least two parallel filter screens 410, with at least partial overlap between the two screens. The filter screens 410 are movable relative to the fume hood 100 in a first direction to adjust the area of ​​the overlapping portion. The oil scraping assembly 500 includes a support 510 and an oil scraping portion 520 disposed on the support 510. Each filter screen 410 abuts against the oil scraping portion 520. When the filter screen 410 moves in the first direction, the oil scraping portion 520 moves relative to the filter screen 410. In other words, when the filter screen 410 moves in the first direction, the oil scraping portion 520 remains in contact with the filter screen 410 and slides relative to the filter screen 410 to scrape away oil stains on the filter screen 410. Figure 2 In this context, the first direction refers to the left-right direction, which is parallel to the filter 410. It should be understood that at least two filters 410 at least partially overlap means that at least a portion of the projection of any one filter 410 in its thickness direction can fall onto at least one other filter 410. In this embodiment, the number of filters 410 is two; in other embodiments, the filter assembly 400 may include more filters 410, such as three filters 410, where any one of the three filters 410 can at least partially overlap with another (or two) filters 410. In this embodiment, the filters 410 in the filter assembly 400 are arranged parallel and spaced apart.

[0030] In this embodiment, the two filters 410 can be close to each other, or one filter 410 can be close to the other filter 410, to increase the overlapping area and open the air inlet; the two filters 410 can also be far apart, or one filter 410 can be far apart from the other filter 410, to allow the filter assembly 410 to unfold. In this embodiment, the two filters 410 have an unfolding limit position with the smallest overlapping area. When the two filters 410 are in the unfolding limit position, the air inlet is covered by the two filters 410. Therefore, the length of the filter 410 in the first direction should be greater than 1 / 2 of the size of the air inlet in the first direction. Figure 1 and Figure 2 This demonstrates the state when the two filters 410 are in their extended limit positions. In this embodiment, by setting two partially overlapping and movable filters 410, the air inlet can be opened without disassembling the filters 410, thus facilitating the cleaning and maintenance of the inside of the smoke hood 100.

[0031] In this embodiment, the oil-scraping assembly 500 is disposed between the overlapping portions of the two filter screens 410. The oil-scraping assembly 500 includes at least two oil-scraping parts 520, which are disposed on opposite sides of the bracket 510 and respectively abut against the two filter screens 410. By disposing of the oil-scraping assembly 500 between the two filter screens 410, one oil-scraping assembly 500 can perform oil-scraping operations on both filter screens 410, saving the number of oil-scraping assemblies 500 and reducing the space occupied by the oil-scraping assembly 500. In this embodiment, the oil-scraping assembly 500 includes two oil-scraping parts 520, which are respectively disposed on opposite sides of the bracket 510; in other embodiments, more than two oil-scraping parts 520 may be disposed on either side of the opposite sides of the bracket 510. It should be understood that in other optional embodiments, more oil-scraping components 500 can be provided, with the two filters 410 abutting against different oil-scraping components 500 to achieve oil scraping; for example, an oil-scraping component 500 can be provided on each side of the two filters 410 that are facing away from each other to abut against the filters 410. In other optional embodiments, the range hood may include multiple oil-scraping components 500, with each filter 410 being held by at least two oil-scraping components 500. This ensures that both the inner and outer surfaces of the filter 410 can be scraped of oil by the oil-scraping components 500, improving the cleaning effect.

[0032] In this embodiment, both the bracket 510 and the oil scraper 520 are strip-shaped and extend along a second direction, which is perpendicular to the first direction and parallel to the filter 410. The two ends of the bracket 510 are connected to opposite sides of the air inlet in the second direction. Figure 1 In the middle, the second direction is the up and down direction. Optionally, the oil scraper 520 is made of rubber. Rubber has a certain structural strength to ensure the force of scraping off oil stains; at the same time, the rubber oil scraper 520 is not easy to scratch the filter screen 410.

[0033] Optionally, the opposite edges of the air inlet in the second direction are bent inward to form a first flange and a second flange, respectively. The bracket 510 is connected to the first flange and the second flange at both ends in the second direction, respectively. When the range hood is in use, the second direction is the vertical direction, the first flange is located at the upper edge of the air inlet, and the second flange is located at the lower edge of the air inlet. In this embodiment, the end of the bracket 510 can be connected to the first flange and the second flange by means of insertion, welding, screwing, etc.; for example, the first flange is provided with a through hole, the second flange is provided with a screw hole, the lower end of the bracket 510 is screwed to the second flange, and the upper end of the bracket 510 is inserted to the first flange.

[0034] Optionally, the air inlet has two slide rails extending along the first direction on its opposite sides in the second direction, and both ends of the filter 410 in the second direction are slidably engaged with the slide rails. The slide rails support the filter 410 and guide its movement. In this embodiment, there are four slide rails in total, two of which are located on the first flange and two on the second flange; the two slide rails on the first flange are used to slidably engage with one end of the two filters 410 in the second direction, and the two slide rails on the second flange are used to slidably engage with the other end of the two filters 410 in the second direction.

[0035] For ease of description, in this embodiment, the filter 410 closer to the inner side of the air inlet is named the inner filter 411, and the filter 410 closer to the outer side of the air inlet is named the outer filter 412; the two slide rails on the first flange are the first inner slide rail and the first outer slide rail, and the two slide rails on the second flange are the second inner slide rail 110 and the second outer slide rail 120. Figure 3 The image shows how the inner filter 411 and the outer filter 412 engage with the two slide rails on the second flange, as follows: Figure 3 As shown, the lower end of the inner filter 411 is slidably engaged with the second inner slide rail 110, and the lower end of the outer filter 412 is slidably engaged with the second outer slide rail 120. Correspondingly, the upper end of the inner filter 411 is slidably engaged with the first inner slide rail, and the upper end of the outer filter 412 is slidably engaged with the first outer slide rail.

[0036] In this embodiment, each slide rail forms a groove, and the filter screen 410 is embedded in the groove and can slide along the groove. In other optional embodiments, the slide rail can also form a strip-shaped boss, and the edge of the filter screen 410 can be provided with a frame, the frame is provided with a groove, the strip-shaped boss of the slide rail is embedded in the groove of the frame, and the strip-shaped boss and the groove can slide relative to each other.

[0037] In this embodiment, each filter screen 410 is provided with a handle structure 420. By providing the handle structure 420, it is convenient for the user to grasp the handle structure 420 and then pull the filter screen 410 to move it, thereby allowing the oil stains on the filter screen 410 to be scraped off by the oil scraping component 500. In this embodiment, the handle structure 420 is a gripping hole, allowing the user to insert their fingers into the gripping hole and pull the filter screen 410. Setting the handle structure 420 as a gripping hole reduces the space occupied by the handle structure 420 and makes it easy to clean. In other embodiments, the handle structure 420 can also be a handle, gripping groove, boss, or other structures that are convenient for the user to grip.

[0038] In alternative embodiments, the range hood includes a drive unit for moving the filter 410 in a first direction. By providing a drive unit, labor can be saved. The transmission method between the drive unit and the filter 410 includes, but is not limited to, gear and rack transmission, belt transmission, and lead screw and nut transmission.

[0039] In summary, this application provides a range hood. The range hood includes a filter assembly 400 and an oil scraping assembly 500. The range hood has an air inlet, and the filter assembly 400 is disposed at the air inlet. The filter assembly 400 includes at least two parallel filter screens 410. The at least two filter screens 410 at least partially overlap, and the filter screens 410 are movable in a first direction to adjust the area of ​​the overlapping portion. The oil scraping assembly 500 includes a bracket 510 and an oil scraping part 520 disposed on the bracket 510. The filter screens 410 abut against the oil scraping part 520. When the filter screens 410 move in the first direction, the oil scraping part 520 slides relative to the filter screens 410. When it is necessary to remove the accumulated oil stains on the filter screen 410, simply move the filter screen 410 along the first direction, allowing the oil scraper 520 to slide on the filter screen 410 and scrape off the oil stains. This eliminates the need to remove the filter screen 410 for cleaning, and also eliminates the need for the user to use additional cleaning items (such as a rag) to clean the filter screen 410. Therefore, the range hood provided in this embodiment allows for convenient cleaning of the filter screen 410, which helps maintain a good smoke extraction effect. Furthermore, since the filter assembly 400 uses two partially overlapping filters 410, when one filter screen 410 moves and the overlapping area increases, not only can the oil stains on the filter screen 410 be scraped off, but the filter screen 410 can also remain within the air inlet range, without occupying extra space due to movement, thus improving the compactness of the device. In addition, by moving the filter screen 410, the air inlet can be opened, making it convenient for the user to maintain or clean the inside of the smoke collection hood 100.

[0040] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application.

Claims

1. A range hood, characterized in that, The range hood includes a filter assembly (400) and an oil scraping assembly (500). The range hood has an air inlet. The filter assembly (400) is disposed at the air inlet. The filter assembly (400) includes at least two parallel filter screens (410). The at least two filter screens (410) overlap at least partially. The filter screens (410) are movable in a first direction to adjust the area of ​​the overlapping portion. The oil scraping assembly (500) includes a bracket (510) and an oil scraping part (520) disposed on the bracket (510). The filter screens (410) all abut against the oil scraping part (520). When the filter screens (410) move in the first direction, the oil scraping part (520) moves relative to the filter screens (410).

2. The range hood according to claim 1, characterized in that, The oil scraping assembly (500) is disposed between the overlapping portions of the two filters (410). The oil scraping assembly (500) includes at least two oil scraping parts (520), which are disposed on opposite sides of the bracket (510) and respectively abut against the two filters (410).

3. The range hood according to claim 1, characterized in that, Both the bracket (510) and the oil scraper (520) are strip-shaped and extend along a second direction, which is perpendicular to the first direction and parallel to the filter (410). The two ends of the bracket (510) are connected to the two opposite sides of the air inlet in the second direction.

4. The range hood according to claim 1, characterized in that, The air inlet has two slide rails extending along the first direction on its opposite sides in the second direction. The second direction is perpendicular to the first direction and parallel to the filter (410). Both ends of the filter (410) in the second direction are slidably engaged with the slide rails.

5. The range hood according to claim 4, characterized in that, The slide rail forms a groove, and the filter screen (410) is embedded in the groove; Alternatively, the slide rail forms a strip-shaped protrusion, the filter screen (410) has a frame with a groove, and the strip-shaped protrusion of the slide rail is embedded in the groove of the frame.

6. The range hood according to claim 1, characterized in that, The air inlet has its opposite two edges bent inward in the second direction to form a first flange and a second flange, respectively. The bracket (510) is connected to the first flange and the second flange at both ends in the second direction, which is perpendicular to the first direction and parallel to the filter (410).

7. The range hood according to claim 1, characterized in that, The material of the oil scraper (520) is rubber.

8. The range hood according to claim 1, characterized in that, The range hood includes a plurality of the oil scraping components (500), and each of the filters (410) is held by at least two of the oil scraping components (500).

9. The range hood according to claim 1, characterized in that, Each of the filter screens (410) is provided with a handle structure (420). Alternatively, the range hood may include a drive unit for driving the filter (410) to move in the first direction.

10. The range hood according to claim 1, characterized in that, The two filters (410) have an expansion limit position with the smallest overlap area. When the two filters (410) are in the expansion limit position, the air inlet is covered by the two filters (410).

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