Range hood and dust collection device thereof
By designing a dust collection device in the range hood, dust is deposited within the deposition component, solving the problem of dust accumulation affecting the lifespan of the range hood and achieving the effects of extending the lifespan of the range hood and reducing noise.
Patent Information
- Application Number
- CN202422969355.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-03
- Publication Date
- 2025-11-14
- Estimated Expiration
- 2034-12-03
AI Technical Summary
During operation, dust easily accumulates on the suction fan and motor of a range hood, which can affect its lifespan over time.
Design a dust collection device, including a dust collection pipe, a deposition component and a dust collection fan. Dust enters the dust collection pipe through the dust inlet and is deposited in the deposition component. The dust in the dust collection chamber is cleaned regularly to reduce the amount of dust entering the range hood.
Extend the lifespan of the range hood, reduce noise, improve the absorption of cooking fumes, and reduce the frequency of cleaning.
Smart Images
Figure CN223550510U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of range hood technology, and in particular to range hoods and their dust collection devices. Background Technology
[0002] During operation, range hoods typically use a rotating suction fan to draw in cooking fumes. However, in addition to fumes, the increased airflow also draws in dust such as fly ash, dander, and hair. Furthermore, flour produced during cooking also generates dust, which is similarly drawn into the range hood.
[0003] Dust that enters the range hood easily sticks to the suction fan and motor, and long-term accumulation can affect the lifespan of the range hood. Utility Model Content
[0004] Therefore, it is necessary to provide a range hood and its dust collection device to address the problem that dust entering the range hood easily sticks to the dust collection fan and motor, and that long-term accumulation will affect the lifespan of the range hood.
[0005] A dust collection device is disposed on the body of a range hood, the dust collection device comprising:
[0006] A vacuum pipe, one end of which has a vacuum port;
[0007] A deposition component, disposed within the suction duct, defines a dust collection chamber together with the sidewall of the suction duct. The deposition component is used to deposit dust entering the suction duct into the dust collection chamber.
[0008] A vacuum fan is installed inside the vacuum duct and located on the side of the deposition assembly away from the vacuum port.
[0009] In one embodiment, the deposition assembly includes a dust collection hood, which has a first port at one end near the dust collection port and a second port at the other end away from the dust collection port; the outline area of the second port is smaller than that of the first port.
[0010] The end of the dust collection hood with the first port is connected to the inner circumferential surface of the dust collection pipe;
[0011] The dust collection hood defines the bottom of the dust collection chamber.
[0012] In one embodiment, the inner cavity of the dust hood gradually narrows along the direction from the first port to the second port.
[0013] In one embodiment, the deposition assembly includes a first filter located on the side of the dust hood near the dust collector fan, the first filter defining the top wall of the dust collection chamber.
[0014] In one embodiment, the first filter has a first recessed cavity facing the suction port side, and the cross-sectional profile of the first recessed cavity gradually increases along the direction from the suction port to the suction fan.
[0015] In one embodiment, the deposition assembly includes a second filter located on the side of the first filter away from the dust hood, the second filter having a larger mesh size than the first filter.
[0016] In one embodiment, the second filter has a second recessed cavity facing the side of the first filter, and the cross-sectional profile of the second recessed cavity gradually increases along the direction from the suction port to the suction fan.
[0017] In one embodiment, the suction duct has a dust inlet, the deposition assembly includes a baffle, and the dust inlet is located on the side of the suction hood near the dust inlet;
[0018] When the vacuum fan is turned off, the baffle blocks the dust inlet;
[0019] When the vacuum fan is started, the baffle releases the dust inlet.
[0020] In one embodiment, the baffle is an elastic baffle, one end of which is connected to the inner circumferential surface of the suction pipe, and the elastic baffle can undergo elastic deformation under the suction force of the suction fan;
[0021] When the dust collector is started, the elastic baffle undergoes elastic deformation, and the dust inlet opens.
[0022] When the vacuum fan is turned off, the elastic baffle returns to its original shape, and the dust inlet closes.
[0023] In one embodiment, the vacuuming device includes a controller and a smoke sensor. The smoke sensor is disposed at the vacuum inlet. The smoke sensor and the vacuum fan are respectively signal-connected to the controller. The smoke sensor is used to detect the amount of smoke at the vacuum inlet. The controller is used to control the opening and closing of the vacuum fan according to the amount of smoke detected by the smoke sensor.
[0024] In one embodiment, the vacuuming device includes a push plate that is signal-connected to the controller. The push plate is capable of extending and retracting within the vacuuming duct along a first direction perpendicular to the extension direction of the vacuuming duct. The controller controls the extension and retraction of the push plate based on the amount of smoke detected by the smoke sensor, thereby changing the air inlet area of the vacuuming duct through the push plate.
[0025] In one embodiment, the other end of the suction pipe away from the suction port is an air outlet, the air outlet is provided with a third filter, and the suction fan is located in the suction pipe near the air outlet. The suction fan is used to install on the ceiling.
[0026] A range hood includes a range hood body and a dust collection device, wherein the dust collection device is provided on at least one side of the range hood body.
[0027] In one embodiment, the suction port of the suction pipe is positioned lower than the smoke inlet of the range hood body.
[0028] The aforementioned range hood and its vacuuming device allow for simultaneous activation of the vacuum fan within the vacuum duct during operation. This fan draws dust from the suction port into the vacuum duct. Since the vacuum fan is positioned on the side of the dust collection chamber furthest from the suction port, dust can be drawn from the suction port onto the deposition component, where it settles within the dust collection chamber. Regular cleaning of the dust collection chamber is then sufficient. This vacuuming device reduces the amount of dust entering the range hood, thus extending its lifespan. Furthermore, the vacuum duct, located on at least one side of the smoke collection box, can also draw in fumes that the range hood cannot reach, improving fume absorption. For the same amount of fumes, since the portion near the vacuum duct or that escapes is drawn in, it is easier to lower the range hood's speed setting and reduce noise during use. Attached Figure Description
[0029] Figure 1 This is a schematic diagram of the structure of a range hood in one embodiment.
[0030] Figure 2 This is a schematic diagram of the deposition component in one embodiment.
[0031] Reference numerals: 10, Range hood; 11, Housing; 12, Range hood body; 20, Ceiling; 30, Dust collection device; 31, Dust collection duct; 311, Dust collection port; 312, Air outlet; 313, Dust inlet; 32, Deposition component; 321, Dust collection hood; 3211, First port; 3212, Second port; 322, First filter; 3221, First cavity; 323, Second filter; 3231, Second cavity; 324, Baffle; 33, Dust collection chamber; 331, Dust removal port; 34, Dust collection fan; 35, Hose; 37, Smoke sensor; 38, Third filter; 391, Dust collection motor; 392, Push plate; 393, Controller. Detailed Implementation
[0032] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.
[0033] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and 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.
[0034] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0035] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or a signal connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0036] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0037] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.
[0038] See Figure 1 and Figure 2 This application discloses a dust collection device 30, which is disposed in the range hood body 12. The dust collection device 30 includes a dust collection pipe 31, a deposition component 32, and a dust collection fan 34. One end of the dust collection pipe 31 has a dust inlet 311. The deposition component 32 is disposed inside the dust collection pipe 31, and the deposition component 32 and the side wall of the dust collection pipe 31 together define a dust collection chamber 33. The deposition component 32 is used to deposit dust entering the dust collection pipe 31 from the dust inlet 311 into the dust collection chamber 33. The dust collection fan 34 is disposed inside the dust collection pipe 31 and is located on the side of the deposition component 32 away from the dust inlet 311.
[0039] Thus, when the range hood body 12 is operating, the suction fan 34 inside the suction duct 31 can be turned on simultaneously, drawing dust from the suction port 311 into the suction duct 31. Simultaneously, the suction fan 34 is positioned on the side of the dust collection chamber 33 away from the suction port 311, allowing dust to be drawn from the suction port 311 onto the deposition component 32. Under the action of the deposition component 32, the dust is deposited in the dust collection chamber 33, which can then be cleaned periodically. In other words, the suction device 30 reduces the amount of dust entering the range hood body 12, thereby extending the lifespan of the range hood body 12 and reducing its cleaning frequency.
[0040] Furthermore, the dust extraction device 30 is installed on the range hood body 12, which can also extract some of the oil fumes that the range hood body 12 cannot cover, thus improving the oil fume absorption effect. Moreover, for the same amount of oil fumes, since some oil fumes near the dust extraction duct 31 or those that have escaped can be sucked in by the dust extraction duct 31, it is easier to lower the speed setting of the range hood body 12 during use, thereby reducing the noise of the range hood body 12.
[0041] Furthermore, the deposition component 32 includes a dust collection hood 321, which defines the bottom of the dust collection chamber 33. The dust collection hood 321 has a first port 3211 and a second port 3212 that are interconnected. The outline area of the first port 3211 is larger than the outline area of the second port 3212. The first port 3211 is located on the side of the second port 3212 that is close to the dust inlet 311. One end of the dust collection hood 321 with the first port 3211 is connected to the inner circumferential surface of the dust collection pipe 31.
[0042] With this configuration, dust enters the dust collection hood 321 from the first port 3211 and, guided by the side wall of the dust collection hood 321, moves to the second port 3212, and finally moves from the second port 3212 to the outside of the dust collection hood 321. Because the outline area of the second port 3212 is small, dust is not easily dropped back into the suction pipe 31 from the second port 3212 through the dust collection hood 321; instead, it accumulates on the dust collection hood 321, that is, accumulates in the dust collection chamber 33.
[0043] Specifically, along the direction from the first port 3211 to the second port 3212, the inner cavity of the dust hood 321 gradually narrows.
[0044] For example, the dust hood 321 is funnel-shaped, with the first port 3211 considered as the wide end of the funnel and the second port 3212 as the narrow end. Alternatively, the dust hood 321 can also be a hemispherical or bowl-shaped structure.
[0045] In other embodiments, along the direction from the first port 3211 to the second port 3212, the outline area of the dust hood 321 can remain unchanged and then gradually shrink, which can also suck dust into the dust collection chamber 33.
[0046] In some embodiments of this application, the deposition assembly 32 includes a first filter 322 located on the side of the dust hood 321 near the dust collector 34, and the first filter 322 defines the top wall of the dust collection chamber 33.
[0047] In this way, the dust passing through the dust hood 321 can fall onto the dust hood 321 under the blocking action of the first filter 322, and then slide down along the outer wall of the dust hood 321 to the inner wall between the dust hood 321 and the dust collection pipe 31, and finally be deposited in the dust collection chamber 33.
[0048] Furthermore, the first filter 322 has a first recess 3221 recessed towards the side of the dust hood 321, and the cross-sectional profile of the first recess 3221 gradually increases along the direction from the dust inlet 311 to the dust blower 34.
[0049] Specifically, the end of the first filter 322 furthest from the dust hood 321 is connected to the inner circumferential surface of the suction pipe 31. The first filter 322 has an arc-shaped, conical, or frustum-shaped structure, such that the cross-sectional profile of the first cavity 3221 of the first filter 322 gradually increases along the direction from the dust inlet 311 to the suction fan 34. Compared to a planar filter, the first filter 322 of this application has an arc-shaped, conical, or frustum-shaped structure to increase the filtration area of the first filter 322, thereby improving the filtration effect. Specifically, taking the frustum-shaped structure as an example, the smaller end of the first filter 322 is closer to the dust hood 321 than the larger end, and the larger end of the first filter 322 is used to connect to the inner wall of the suction pipe 31 to prevent dust from passing between the first filter 322 and the suction pipe 31.
[0050] In some embodiments of this application, the deposition component 32 includes a second filter 323 located on the side of the first filter 322 away from the dust hood 321, and the mesh size of the second filter 323 is greater than that of the first filter 322.
[0051] That is, the first filter 322 is a coarse filter and the second filter 323 is a fine filter. The dust entering the dust collection chamber 33 first passes through the first filter 322 to filter out larger dust particles, so that the larger dust particles fall into the dust collection chamber 33. Then, it passes through the second filter 323 to filter out smaller dust particles, so that the smaller dust particles fall into the dust collection chamber 33.
[0052] Furthermore, the second filter 323 has a second recess 3231 that is recessed toward the first filter 322, and the cross-sectional profile of the second recess 3231 gradually increases along the direction from the suction port 311 to the suction fan 34.
[0053] The end of the second filter 323 furthest from the first filter 322 is connected to the inner circumferential surface of the suction pipe 31. The second filter 323 has an arc-shaped, conical, or frustum-shaped structure, so that the cross-sectional profile of the second cavity 3231 gradually increases along the direction from the suction port 311 to the suction fan 34, which also increases the filtration area of the first filter 322, thereby improving the filtration effect.
[0054] Specifically, the first filter 322 has a frustum-shaped structure, and the second filter 323 has a conical structure. The second filter 323 is fitted inside the first filter 322.
[0055] Furthermore, a dust removal port 331 is provided on the outer wall of the dust collection chamber 33. When there is a lot of dust accumulated on the dust suction hood 321, the dust removal port 331 can be opened to remove the dust in the dust collection chamber 33. Specifically, the dust removal port 331 is provided with a cover plate, which is connected to the dust suction pipe 31 by screws. When cleaning is required, the cover plate is removed.
[0056] In some embodiments of this application, a dust inlet 313 is provided in the dust suction pipe 31, and the deposition component 32 includes a baffle 324. The dust inlet 313 is located at one end of the dust suction hood 321 near the dust suction port 311. The baffle 324 is used to block or release the dust inlet 313. When the dust suction fan 34 is turned off, the baffle 324 blocks the dust inlet 313. When the dust suction fan 34 is started, the baffle 324 releases the dust inlet 313.
[0057] With this configuration, when the vacuum cleaner fan 34 is started, the baffle 324 can release the dust inlet 313, allowing dust to enter the deposition component 32 through the dust inlet 313 and be deposited in the dust collection chamber 33 under the action of the dust hood 321 and the first filter 322. When the vacuum cleaner fan 34 is turned off, the baffle 324 blocks the vacuum pipe 31. Since the baffle 324 is located at the end of the dust hood 321 near the dust inlet 311, when the suction disappears, the dust on the dust hood 321 can fall back onto the dust hood 321, and the dust under the dust hood 321 can fall back onto the baffle 324. This prevents the dust sucked into the vacuum pipe 31 from returning to the external environment when the vacuum cleaner fan 34 is turned off.
[0058] In some embodiments, the baffle 324 is an elastic baffle, one end of which is connected to the dust collection pipe 31. The elastic baffle can undergo elastic deformation under the suction force of the dust collection fan 34. When the dust collection fan 34 is started, the elastic baffle undergoes elastic deformation and the dust inlet 313 opens. When the dust collection fan 34 is turned off, the elastic baffle returns to its original shape and the dust inlet 313 closes.
[0059] The baffle 324 is an elastic baffle. When the vacuum cleaner fan 34 is started, the elastic baffle can bend and deform under the action of the vacuum cleaner fan 34, thereby opening the dust inlet 313. When the vacuum cleaner fan 34 is turned off, the elastic baffle can spring back to its initial state and close the dust inlet 313. Specifically, the elastic baffle includes a connecting part and a deformable part. The connecting part is connected to the inner wall of the vacuum cleaner pipe 31. When there is no suction, the connecting part and the deformable part are on the same plane, and the elastic baffle blocks the vacuum cleaner pipe 31. Under the suction of the vacuum cleaner fan 34, the deformable part can bend relative to the connecting part, thereby opening the dust inlet 313.
[0060] In some other embodiments, the middle part of the baffle 324 may be rotatably connected to the inner wall of the suction pipe 31. When the suction fan 34 is started, one side of the baffle 324 rotates upward and the other side rotates downward, so that the baffle 324 stands inside the suction pipe 31, that is, the suction pipe 31 is opened; when the suction fan 34 is turned off, the baffle 324 returns to the horizontal position, thereby blocking the suction pipe 31.
[0061] Most gas stoves on the market are two-burner gas stoves. Since there are two burners, the range hood body 12 is usually fixed on the two burners. However, when only one burner is used, the suction power of the range hood body 12 is not good enough.
[0062] In one embodiment of this application, the vacuuming device 30 includes a controller 393 and a smoke sensor 37. The smoke sensor 37 is disposed at the suction port 311. The smoke sensor 37 and the vacuuming fan 34 are respectively connected to the controller 393 via signal. The smoke sensor 37 is used to detect the amount of smoke at the suction port 311. The controller 393 is used to control the opening and closing of the vacuuming fan 34 according to the amount of smoke detected by the smoke sensor 37.
[0063] Thus, a smoke sensor 37 is installed at the suction port 311. When the smoke sensor 37 detects a large amount of smoke, it simultaneously controls the suction fan 34 to start, thereby sucking in the smoke through the suction pipe 31 and improving the smoke suction effect.
[0064] The vacuuming device 30 includes a push plate 392, which is signal-connected to the controller 393. The push plate 392 can extend and retract within the vacuuming duct 31 along a first direction, which is perpendicular to the extension direction of the vacuuming duct 31. The controller 393 controls the extension and retraction of the push plate 392 according to the amount of smoke detected by the smoke sensor 37, so as to change the air inlet area of the vacuuming duct 31 through the push plate 392.
[0065] With this configuration, the push plate 392 can extend and retract in the first direction, thereby controlling the air inlet area within the suction duct 31 and thus the airflow within the suction duct 31. Specifically, when the smoke sensor 37 detects a large amount of smoke, the controller 393 controls the push plate 392 to retract, reducing the area obstructed by the suction duct 31, increasing the air inlet, and improving the airflow so that the fumes are sucked away quickly. When the smoke sensor 37 detects a small amount of smoke, the controller 393 controls the push plate 392 to extend, increasing the area obstructed by the suction duct 31, reducing the air inlet, and decreasing the airflow.
[0066] Specifically, the vacuuming device 30 also includes a vacuum motor 391, which drives the push plate 392 to extend and retract. The controller is connected to the motor via a signal. The vacuum motor 391 is used to receive signals from the controller 393 to control the extension and retraction of the push plate 392.
[0067] In some embodiments, the other end of the suction pipe 31 away from the suction port 311 is the air outlet 312, the air outlet 312 is provided with a third filter 38, and the suction fan 34 is provided in the suction pipe 31 near the air outlet 312. The suction fan 34 is used to be installed on the ceiling 20.
[0068] In actual operation, when the vacuum cleaner 30 is started, the vacuum fan 34 turns on, the baffle 324 opens, and a negative pressure is formed at the suction port 311. Dust enters from the suction port 311 and passes through the suction hood 321. Larger dust particles are blocked by the first filter 322 and deposited in the dust collection chamber 33. Smaller dust particles pass through the first filter 322 and are blocked by the second filter 323, also depositing in the dust collection chamber 33. A dust removal port 331 is provided on the side wall of the dust collection chamber 33, through which dust can be swept out of the dust collection chamber 33. A small amount of oil fumes enters the vacuum pipe 31 through the suction port 311 and can be filtered by the third filter 38 installed at the air outlet 312 before being discharged from the air outlet 312.
[0069] This application also discloses a range hood 10, including a range hood body 12 and a dust collection device 30, wherein the dust collection device 30 is provided on at least one side of the range hood body 12.
[0070] Specifically, a dust collection device 30 is installed on each side of the smoke collection box along the direction of the burner arrangement. For example, if two burners are arranged in a left-right direction, a dust collection device 30 is installed on each side of the smoke collection box in the left-right direction. The two dust collection devices 30 can be controlled independently. When using the left burner, the left dust collection device 30 is turned on, which can suck up the fumes escaping from the left, improving the fume extraction effect. At the same time, since the left dust collection device 30 can directly suck up the fumes escaping from the left, the airflow of the range hood body 12 can be appropriately reduced, thereby reducing noise. Similarly, when using the right burner, the right dust collection device 30 is turned on, which can suck up the fumes escaping from the right, improving the fume extraction effect and reducing noise. In addition, the suction fan 34 of the dust collection device 30 is installed on the ceiling 20, which can isolate most of the noise of the suction fan 34, thereby reducing the overall noise of the range hood body 12.
[0071] Furthermore, the suction port 311 of the suction pipe 31 is positioned lower than the smoke inlet of the range hood body 12.
[0072] The suction pipe 31 can absorb both oil fumes and dust. Therefore, the suction port 311 of the suction pipe 31 is positioned lower than the smoke inlet of the smoke collection box so that dust can enter the suction pipe 31 through the suction port 311, thereby reducing the amount of dust entering the range hood body 12 and extending the service life of the range hood body 12.
[0073] In some embodiments, the range hood 10 includes a housing 11, and a dust extraction duct 31 is formed between the range hood body 12 and the housing 11.
[0074] In some other embodiments, the range hood 10 includes a housing 11, a dust extraction pipe 31 disposed inside the housing 11, the dust extraction pipe 31 includes a hose 35, the hose 35 is located at the bottom of the baffle 324, and the dust extraction port 311 is located at the end of the hose 35.
[0075] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0076] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.
Claims
1. A dust collection device, disposed on the body of a range hood, characterized in that, The vacuuming device includes: A vacuum pipe, one end of which has a vacuum port; A deposition component, disposed within the suction duct, defines a dust collection chamber together with the sidewall of the suction duct. The deposition component is used to deposit dust entering the suction duct into the dust collection chamber. A vacuum fan is installed inside the vacuum duct and located on the side of the deposition assembly away from the vacuum port.
2. The vacuuming device according to claim 1, characterized in that, The deposition assembly includes a dust collection hood, with a first port at one end near the dust collection port and a second port at the other end away from the dust collection port; the outline area of the second port is smaller than that of the first port. The end of the dust collection hood with the first port is connected to the inner circumferential surface of the dust collection pipe; The dust collection hood defines the bottom of the dust collection chamber.
3. The vacuuming device according to claim 2, characterized in that, Along the direction from the first port to the second port, the inner cavity of the vacuum hood gradually narrows.
4. The vacuuming device according to claim 2, characterized in that, The deposition assembly includes a first filter located on the side of the dust hood near the dust collector fan, the first filter defining the top wall of the dust collection chamber.
5. The vacuuming device according to claim 4, characterized in that, The first filter has a first recessed cavity facing the suction port side, and the cross-sectional profile of the first recessed cavity gradually increases along the direction from the suction port to the suction fan.
6. The vacuuming device according to claim 4, characterized in that, The deposition assembly includes a second filter located on the side of the first filter away from the dust hood, and the second filter has a larger mesh size than the first filter.
7. The vacuuming device according to claim 6, characterized in that, The second filter has a second recessed cavity facing the side of the first filter, and the cross-sectional profile of the second recessed cavity gradually increases along the direction from the suction port to the suction fan.
8. The vacuuming device according to claim 2, characterized in that, The suction pipe has a dust inlet, the deposition assembly includes a baffle, and the dust inlet is located on the side of the suction hood near the dust inlet; When the vacuum fan is turned off, the baffle blocks the dust inlet; When the vacuum fan is started, the baffle releases the dust inlet.
9. The vacuuming device according to claim 8, characterized in that, The baffle is an elastic baffle, one end of which is connected to the inner circumferential surface of the dust collection pipe. The elastic baffle can undergo elastic deformation under the suction force of the dust collection fan. When the dust collector is started, the elastic baffle undergoes elastic deformation, and the dust inlet opens. When the vacuum fan is turned off, the elastic baffle returns to its original shape, and the dust inlet closes.
10. The vacuuming device according to claim 1, characterized in that, The vacuuming device includes a controller and a smoke sensor. The smoke sensor is located at the suction port. The smoke sensor and the vacuum fan are respectively connected to the controller via signals. The smoke sensor is used to detect the amount of smoke at the suction port. The controller is used to control the opening and closing of the vacuum fan based on the amount of smoke detected by the smoke sensor.
11. The vacuuming device according to claim 10, characterized in that, The vacuuming device includes a push plate, which is signal-connected to the controller. The push plate is capable of extending and retracting within the vacuuming duct along a first direction, which is perpendicular to the extension direction of the vacuuming duct. The controller controls the extension and retraction of the push plate based on the amount of smoke detected by the smoke sensor, thereby changing the air inlet area of the vacuuming duct through the push plate.
12. The vacuuming device according to claim 1, characterized in that, The other end of the suction pipe away from the suction port is the air outlet, which is equipped with a third filter. The suction fan is located at the end of the suction pipe near the air outlet and is used to install on the ceiling.
13. A range hood, characterized in that, The range hood includes a range hood body and a dust collection device as described in any one of claims 1-12, wherein the dust collection device is provided on at least one side of the range hood body.
14. The range hood according to claim 13, characterized in that, The suction port of the suction pipe is positioned lower than the smoke inlet of the range hood body.