Smoke collection device and range hood

Abstract

This invention provides a smoke collection device and a range hood, relating to the technical field of kitchen appliances. The smoke collection device provided by this invention includes: a smoke collection hood, a panel, and a cable conduit; the panel is hinged to the smoke collection hood; the back of the panel is used to install electrical components, the electrical components having cables; the smoke collection hood is provided with a through hole connecting its interior and exterior; one end of the cable conduit is connected to the panel, and the other end passes through the through hole and is located inside the smoke collection hood, so that the distal end of the cable passes through the cable conduit from the outside to the inside and is located inside the smoke collection hood.

Description

Technical Field

[0001] This invention relates to the field of kitchen appliance technology, and in particular to a smoke collection device and a range hood. Background Technology

[0002] With the continuous advancement of technology, the overall structure of range hoods is becoming increasingly diverse.

[0003] While ensuring the performance of range hoods, the main unit components are increasingly being designed with a top-mounted orientation. To further enhance user experience, the design of the casing focuses on smaller size and a slimmer profile. Therefore, the control panel typically uses a smart opening and closing mechanism. When the control panel is open, more negative pressure zones are created to ensure that cooking fumes are effectively drawn in and expelled outdoors. In this configuration, the optimal location for the control switch is generally on the back of the control panel, a position that, according to ergonomic principles, facilitates easy identification and operation by the user.

[0004] Therefore, the electronic components such as switches on the back of the panel must be connected to the machine's control power board via cables. Because the panel needs to be opened and closed, the cables are exposed when the panel is open. On the one hand, the cables will be contaminated by oil. On the other hand, when the cables pass through the through holes on the fume hood, they will inevitably rub against the edges of the through holes. Over time, this friction will cause wear and tear on the outer wall of the cables. Summary of the Invention

[0005] The purpose of this invention is to provide a smoke collection device and a range hood to alleviate the technical problems of existing electronic devices on the back of the panel being easily contaminated by oil fumes and the outer wall of the cables being worn.

[0006] In a first aspect, the present invention provides a smoke collection device, comprising: a smoke collection hood, a panel, and a cable conduit;

[0007] The panel is hinged to the smoke hood; the back of the panel is used to mount electrical components, which have cables.

[0008] The smoke hood is provided with through holes that connect its interior and exterior.

[0009] One end of the cable conduit is connected to the panel, and the other end passes through the through hole and is located inside the smoke hood, so that the far end of the cable passes through the cable conduit from the outside to the inside and is located inside the smoke hood.

[0010] Furthermore, the protective tube is hinged to the panel; the smoke hood is provided with a first guide slope located below the protective tube, and the protective tube slides in contact with the first guide slope;

[0011] The panel has an open state and a closed state. When switching from the open state to the closed state, the swing angle of the panel is b, and the swing angle of the protective tube is a. From the outside to the inside, the first guide slope is tilted upward so that a is less than b.

[0012] Furthermore, when the panel is in the open or closed state, the end of the protective conduit furthest from the panel is inside the smoke hood.

[0013] Furthermore, an arc-shaped chamfer is provided between the end face of the cable outlet and its inner wall.

[0014] Furthermore, the smoke collection device also includes a first cable tray, which is located between the electrical components and the cable conduit. The first cable tray covers the back of the panel and forms a first cable passage for the cable to pass through.

[0015] Furthermore, a back cover is provided on the back of the panel, and the back cover and the panel form a cavity, in which electrical components are located; the outlet of the cavity is connected to the inlet of the first wire passage.

[0016] And / or, the panel is provided with a hinge frame and a second cable guard groove, the panel is hinged to the smoke hood through the hinge frame; the second cable guard groove is provided between the first cable guard groove and the hinge frame, and the second cable guard groove is used to prevent the cable from contacting the hinge frame.

[0017] And / or, the outlet of the first cable passage is oriented perpendicular to the swing plane of the conduit, so that the cable enters the conduit after turning 90° from the first cable passage.

[0018] Furthermore, the cable protection tube includes a trough and a trough cover; the outer end of the trough is hinged to the panel; the trough cover includes a top plate and a frame located at the inner end of the top plate, the top plate covers the opening of the trough, and the two form a tubular structure; the frame is located at the inner end of the trough, and the frame forms the cable outlet of the cable protection tube.

[0019] Furthermore, the top plate is provided with buckles extending toward the bottom of the tank, and the tank wall is provided with snap holes that engage with the buckles.

[0020] Furthermore, the smoke collection device also includes: a detection component installed inside the smoke collection hood;

[0021] The front panel of the smoke hood is equipped with a smoke inlet;

[0022] A panel is rotatably connected to the front panel of the fume hood; a decorative strip is also connected to the front panel of the fume hood, located in front of the smoke inlet; a second light-transmitting hole is provided on the decorative strip, and the detection component detects the cooking environment through the second light-transmitting hole;

[0023] The panel does not obstruct the second light-transmitting hole when it is in the open or closed state.

[0024] Furthermore, the smoke collection device also includes a lower cover, which is connected to the bottom of the smoke collection hood;

[0025] The lower cover includes a front panel extending vertically, which is located below the decorative strip and there is a vertical gap between them. The front edge of the bottom end face of the decorative strip is higher than its rear edge so that oil stains on the surface of the decorative strip are directed to the inner wall of the front panel.

[0026] Furthermore, the lower cover also includes a base plate, which is connected to the bottom of the front plate; the base plate is provided with smoke inlet holes;

[0027] An oil cup is connected to the bottom of the base plate, and an inlet connecting the inside and outside is provided on the side wall of the oil cup; the interior of the lower cover has an oil fume channel; from the outside to the inside, the inlet, the smoke inlet hole and the oil fume channel are connected in sequence to form the bottom smoke inlet channel;

[0028] An oil guiding structure is provided on the back of the front panel. The oil guiding structure has an oil discharge end. The oil guiding structure is used to guide the oil on the back of the front panel and discharge it from the oil discharge end. The downward projection of the oil discharge end is completely misaligned with the smoke inlet hole.

[0029] Furthermore, the smoke collection device also includes oil guide strips and an installation structure arranged sequentially from top to bottom, the installation structure being used to install the detection components;

[0030] Oil guide strips are installed on both the left and right sides above the mounting structure. Along the left and right direction, the end of the oil guide strip closer to the mounting structure is higher than the end of the oil guide strip farther away from the mounting structure. The oil guide strips are used to guide the oil flowing down from top to bottom to the left and right sides of the mounting structure.

[0031] Furthermore, the smoke collection device also includes a bellows, which is connected to the top of the smoke collection hood;

[0032] The bottom of the bellows is provided with a skirt that connects to the smoke collection hood. Below the front edge of the skirt is a downward-extending folded edge. From top to bottom, the folded edge slopes backward, and the lower edge of the folded edge is higher at the end closer to the mounting structure than at the end farther away from the mounting structure.

[0033] The inner wall of the front panel of the smoke hood has inwardly protruding strip-shaped ribs.

[0034] The lower edge of the folded edge and the end of the strip rib closest to the mounting structure are both higher than the end furthest from the mounting structure;

[0035] The downward projection of the lower edge of the folded edge, away from the mounting structure, falls on the strip rib, so that the oil droplets flowing down from the lower edge of the folded edge, away from the mounting structure, can fall on the strip rib.

[0036] Secondly, the present invention provides a range hood that includes the aforementioned smoke collection device.

[0037] This invention has at least the following advantages or beneficial effects:

[0038] The smoke collection device provided by the present invention includes: a smoke collection hood, a panel, and a cable conduit; the panel is hinged to the smoke collection hood; the back of the panel is used to install electrical components, which have cables; the smoke collection hood is provided with a through hole connecting its inside and outside; one end of the cable conduit is connected to the panel, and the other end passes through the through hole and is located inside the smoke collection hood, so that the distal end of the cable passes through the cable conduit from the outside to the inside and is located inside the smoke collection hood.

[0039] The cable tray behind the panel moves relative to the fume hood as the panel rotates, concealing and protecting the electrical cables. When the panel is opened, the cable tray is exposed, further shielding the cables and reducing the impact of oil on them. Furthermore, protected by the cable tray, the cables no longer come into contact with the through-holes in the fume hood, thus reducing wear and tear on the cable's outer surface and extending its service life.

[0040] The range hood provided by this invention includes the aforementioned smoke collection device. Because the range hood provided by this invention utilizes the aforementioned smoke collection device, it also possesses the advantages of a smoke collection device. Attached Figure Description

[0041] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0042] Figure 1 A schematic diagram of a smoke collection device provided in an embodiment of the present invention;

[0043] Figure 2 A cross-sectional view of the smoke collection device provided in an embodiment of the present invention;

[0044] Figure 3 A schematic diagram of the back of the panel of the smoke collection device provided in an embodiment of the present invention;

[0045] Figure 4 for Figure 3 A magnified view of a portion of position A in the middle;

[0046] Figure 5 Wiring diagram of the panel of the smoke collection device provided in the embodiment of the present invention;

[0047] Figure 6 A cross-sectional view of the smoke collection device provided in an embodiment of the present invention;

[0048] Figure 7 This is a cross-sectional view of the smoke collection device provided in an embodiment of the present invention after the panel is closed;

[0049] Figure 8 This is a simulation diagram of the detection of the smoke collection device provided in an embodiment of the present invention;

[0050] Figure 9 This is a front view of the smoke collection device provided in an embodiment of the present invention;

[0051] Figure 10 This is an assembly diagram of the detection component of the smoke collection device provided in an embodiment of the present invention;

[0052] Figure 11 This is a cross-sectional view of the decorative strip position of the smoke collection device provided in an embodiment of the present invention;

[0053] Figure 12 This is a schematic diagram of the smoke collection device provided in an embodiment of the present invention after the oil screen has been removed;

[0054] Figure 13 This is a rear view schematic diagram of the internal structure of the smoke collection device provided in an embodiment of the present invention;

[0055] Figure 14 for Figure 13 A magnified view of a portion of position B in the middle;

[0056] Figure 15 This is an oil circuit diagram of the smoke collection device provided in an embodiment of the present invention;

[0057] Figure 16 This is a cross-sectional view of the location of the detection component of the smoke collection device provided in an embodiment of the present invention;

[0058] Figure 17 for Figure 16 A magnified view of the area at position C in the middle;

[0059] Figure 18 for Figure 16 A magnified view of the area at position D in the middle;

[0060] Figure 19 A schematic diagram showing the lower cover and oil cup positions of the smoke collection device provided in an embodiment of the present invention;

[0061] Figure 20 for Figure 19 A magnified view of the area at position E in the middle;

[0062] Figure 21 A schematic diagram of the front panel of the smoke collection device provided in an embodiment of the present invention;

[0063] Figure 22 for Figure 21 A magnified view of the middle F position;

[0064] Figure 23A top view of the front panel of the smoke collection device provided in an embodiment of the present invention;

[0065] Figure 24 A schematic diagram showing one perspective of the smoke collection device provided in an embodiment of the present invention after the front plate and the bottom plate are connected;

[0066] Figure 25 for Figure 24 A magnified view of the area at position G in the middle;

[0067] Figure 26 This is a schematic diagram showing another perspective of the smoke collection device provided in an embodiment of the present invention after the front plate and the bottom plate are connected;

[0068] Figure 27 This is a schematic diagram of the bottom structure of the smoke collection device provided in an embodiment of the present invention;

[0069] Figure 28 for Figure 27 A magnified view of the area at position H in the middle;

[0070] Figure 29 This is a cross-sectional view of the lower cover of the smoke collection device provided in an embodiment of the present invention.

[0071] Icons: 1 - Smoke hood; 11 - First light-transmitting hole; 12 - Second flange; 13 - Mounting groove; 14 - Recessed platform; 15 - Bellows; 151 - Skirt; 152 - Folded edge; 16 - Oil mesh; 171 - First flange; 172 - First protrusion; 173 - Oil drain; 174 - Oil guide groove; 175 - Second protrusion; 18 - First strip; 19 - Second strip; 2 - Panel; 21 - Through hole; 22 - Back cover; 23 - First cable protection groove; 24 - First lifting lug; 25 - Second cable protection groove; 3 - Cable protection tube; 31 - First guide slope; 32 - Chamfered corner; 33 - Groove; 331 - Snap hole; 34 - Groove cover; 342 - Buckle; 341 - Frame ; 35 - Second connecting seat; 36 - First connecting seat; 4 - Cable; 5 - Push rod module; 6 - Detection component; 7 - Decorative strip; 71 - Second light-transmitting hole; 8 - Lower cover; 81 - Front panel; 82 - Vertical gap; 83 - Outer panel; 84 - Back panel; 841 - Connecting rib; 842 - Connecting part; 8421 - Second oil leakage hole; 843 - First inclined wall; 844 - Second inclined wall; 85 - Bottom plate; 851 - Smoke inlet; 8511 - Third flange; 852 - Bottom wall; 853 - Front wall; 854 - Upper wall; 86 - Bottom connecting plate; 861 - Second guide slope; 862 - Smoke guide hole; 87 - First oil leakage hole; 9 - Oil cup; 91 - Inlet. Detailed Implementation

[0072] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0073] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0074] 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.

[0075] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this invention is in use. They are only for the convenience of describing this invention 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 invention. In addition, the terms "first," "second," "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0076] Furthermore, terms such as "horizontal" and "vertical" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0077] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0078] like Figure 1As shown, the smoke collection device provided by the present invention includes: a smoke hood 1, a panel 2, and a cable conduit 3. The panel 2 is hinged to the smoke hood 1, and the panel 2 can rotate relative to the smoke hood 1 to an open state and a closed state. In the open state, the panel 2 forms a smoke-gathering structure to reduce the escape of oil fumes; in the closed state, the panel 2 can block the smoke inlet of the smoke hood 1 to prevent the panel 2 from interfering with other activities of the user.

[0079] The back of panel 2 is used to install electrical components, which include a cable 4. The outer end of cable 4 connects to the main controller of the range hood. Specifically, the electrical components may include a touch module, lighting, etc. For example, a touch screen can be installed on panel 2, and a touch circuit board electrically connected to the touch screen can be installed on the back of panel 2. Of course, in other feasible solutions, the electrical components can also be devices with other functions.

[0080] like Figure 2 As shown, the front panel of the smoke hood 1 has a through hole 21 connecting its interior and exterior. One end of the cable protector 3 is connected to the panel 2, and the other end passes through the through hole 21 and is located inside the smoke hood 1. The cable 4 leading out from the electrical components is introduced from the outer end of the cable protector 3 and then led out from the inner end of the cable protector 3. The cable protector 3 serves to shield and protect the cable 4. When the panel 2 is in its fully open state and when the panel 2 is in its closed state, the inner end of the cable protector 3 is located inside the smoke hood 1, and the cable protector 3 always protects the cable 4. Furthermore, the inner end of the cable protector 3 is in a free state and is not connected to any component, allowing for greater flexibility in movement.

[0081] The cable guard tube 3 on the rear side of panel 2 can move relative to the fume hood 1 as panel 2 rotates, placing the electrical cables 4 inside the cable guard tube 3, which serves to shield and protect the cables 4. When panel 2 is opened, the cable guard tube 3 is exposed, further shielding the electrical cables 4 and reducing the impact of oil on the cables 4. Furthermore, under the protection of the cable guard tube 3, the cables 4 no longer come into contact with the through holes 21 on the fume hood 1; therefore, the outer wall of the cables 4 is less prone to wear and tear, resulting in a longer service life.

[0082] like Figure 2 , Figure 6 and Figure 7 As shown, the protective tube 3 is hinged to the panel 2; the smoke hood 1 has a first guide slope 31 located below the protective tube 3 inside, and the protective tube 3 slides in contact with the first guide slope 31; the panel 2 has an open state and a closed state, and when switching from the open state to the closed state, the swing angle of the panel 2 is b, and the swing angle of the protective tube 3 is a. From the outside to the inside, the first guide slope 31 is inclined upward so that a is less than b.

[0083] When panel 2 switches between open and closed states, the first guide slope 31 can support and guide the rotation of the cable guard tube 3, preventing it from tilting downwards under gravity, thereby reducing the bending angle of cable 4 and preventing cable 4 from breaking due to bending. The smaller the bend angle formed at the turning point when cable 4 bends, the easier it is for the internal connecting wires of cable 4 to break. Therefore, in this embodiment, by supporting the cable guard tube 3 and increasing the bend angle, the cable harness will not break even when bending within a certain angle.

[0084] like Figure 2 As shown, the smoke collection device also includes a push rod module 5, such as a push rod motor. The push rod module 5 passes through the through hole 21 and is hinged to the smoke collection hood 1 and the panel 2 respectively via the first connecting seat 36. A partition is provided inside the through hole 21, which separates the push rod module 5 and the cable protection tube 3 and supports the cable protection tube 3. The upper surface of the partition forms a first guide slope 31.

[0085] like Figure 4 As shown, an arc-shaped chamfer 32 is provided between the end face of the cable outlet of the protective tube 3 and its inner tube wall. When the cable 4 is led out from the cable outlet of the protective tube 3, the outer wall of the cable 4 will rub against the port of the cable outlet. The arc-shaped chamfer 32 can reduce the friction and reduce the wear on the outer sheath of the cable 4.

[0086] Specifically, the cable conduit 3 includes a channel body 33 and a channel cover 34, which can be connected by a snap fastener 342. The outer end of the channel body 33 is hinged to the panel 2. The channel cover 34 includes a top plate and a frame 341 located at the inner end of the top plate. The top plate covers the opening of the channel body 33, and the two form a tubular structure for the cable 4 to pass through. The frame 341 is located at the inner end of the channel body 33 and forms the outlet of the cable conduit 3. The inner and outer edges of the frame 341 are provided with arc-shaped chamfers 32 to reduce the friction between the frame and the cable 4.

[0087] The top plate is provided with a buckle 342 extending toward the bottom of the groove 33. Buckles 342 are provided on both the left and right sides of the top plate. The two groove walls of the corresponding groove 33 are provided with locking holes 331 that engage with the buckles 342. The top plate is inserted from top to bottom along the opening direction of the groove 33, and the buckles 342 of the top plate engage with the locking holes 331.

[0088] The materials of the protective tube 3 and the first guide slope 31 can both be plastic, which will generate less noise when sliding relative to each other.

[0089] The back of panel 2 is also provided with a second connecting seat 35 that is hinged to the groove 33. The second connecting seat 35 can be connected to the first lifting lug 24, which is used to connect panel 2 to smoke hood 1. The two groove walls of the second connecting seat 35 are connected to the two groove walls of the groove 33 by hinge shafts.

[0090] like Figure 3 As shown, a back cover 22 is provided on the back of panel 2. The back cover 22 is roughly box-shaped and is fastened to the back of panel 2. The back cover 22 and panel 2 form a cavity, and the electrical components are located inside the cavity, thus protecting the electrical components.

[0091] like Figure 4 As shown, a first cable protection groove 23 extending in the left and right direction can also be provided between the back cover 22 and the cable protection tube 3. The first cable protection groove 23 covers the back of the panel 2 and forms a first cable passage for the cable 4 to pass through with the panel 2. The outlet of the cavity is connected to the inlet of the first cable passage for the cable 4 to pass through.

[0092] like Figure 3 - Figure 5 As shown, panel 2 is hinged to smoke hood 1 via a hinge frame. The hinge frame may include two first lifting lugs 24 located on the left and right sides of panel 2, respectively. Two second lifting lugs are provided on the left and right sides of smoke hood 1. The first lifting lugs 24 and the second lifting lugs are connected by a connecting rod to realize the rotation opening and closing of panel 2. The first lifting lugs 24 are close to the cable protection tube 3. To avoid interference between the cable 4 outside the cable inlet end of the cable protection tube 3 and the first lifting lug 24 when rotating, a second cable protection groove 25 is provided on panel 2. The second cable protection groove 25 is located between the first cable protection groove 23 and the first lifting lug 24. The second cable protection groove 25 is U-shaped, with its opening facing the cable protection tube 3. The two groove walls of the second cable protection groove 25 are spaced apart in the left and right direction, and a wire hole communicating with the outlet of the first cable passage is provided on the groove wall of the second cable protection groove 25 for the cable 4 to pass through. The groove wall in the second cable protection groove 25, which is far from the first cable passage, is used to prevent the cable 4 from contacting the first lifting lug 24, thus protecting the cable 4.

[0093] like Figure 4 As shown, the second connecting seat 35 is located below the first lifting lug 24, and the first connecting seat 36 is located below the second connecting seat 35. The three are arranged close to each other and do not interfere with each other. The groove wall of the groove body 33 is provided with a clearance recess 332, which is used to avoid the hinge shaft between the first lifting lug 24 and the connecting rod when the panel 2 is in the open state.

[0094] The first cable tray 23 is a U-shaped tray with a width ≥ 3 * cable outer diameter and a depth ≥ 1.5 * cable outer diameter. The cable runs within the tray. The first cable tray 23 is secured to the panel 2 by several locking slots into several semi-convex bumps on the back of the panel 2. The first cable tray 23 is installed at a 90° angle to the long side of the panel 2 and the back cover 22. The cable sheath 3 has a width ≥ 3 * cable outer diameter and a depth ≥ 1.5 * cable outer diameter. The cable sheath 3 is designed at a 90° angle to the long side of the panel 2 and the back cover 22, and also at a 90° angle to the length of the first cable tray 23. The second cable tray 25 has a U-shaped tray structure with a width ≥ 3 * cable outer diameter and a depth ≥ 1.5 * cable outer diameter. The cable sheath 3 forms a 90° angle with the second cable tray 25; therefore, the angle of the cable 4 here is greater than 3 * cable outer diameter. The outer side of the bend of cable 4 is protected by a second cable guard groove 25, which can prevent contact with the first lifting lug 24 and prevent wear on the outer ring of cable 4.

[0095] like Figure 8 - Figure 10 As shown, the smoke collection device also includes: a detection component 6 disposed inside the smoke collection hood 1; a smoke inlet is provided on the front panel of the smoke collection hood 1; a panel 2 is rotatably connected to the front panel of the smoke collection hood 1; a decorative strip 7 located in front of the smoke inlet is also connected to the front panel of the smoke collection hood 1; a second light-transmitting hole 71 is provided on the decorative strip 7, and the detection component 6 detects the cooking environment through the second light-transmitting hole 71; the panel 2 does not block the second light-transmitting hole 71 when it is in the open or closed state.

[0096] like Figure 10 As shown, the detection component 6 is installed inside the smoke hood 1. A first light-transmitting hole 11 can be provided on the front panel of the smoke hood 1. The first light-transmitting hole 11 and a second light-transmitting hole 71 are aligned front to back, allowing the detection component 6 to detect the cooking environment through the first light-transmitting hole 11 and the second light-transmitting hole 71. Because the panel 2 does not block the second light-transmitting hole 71 when it is open or closed, the detection process of the detection component 6 is not affected by the opening or closing of the panel 2, facilitating the use of the detection component 6 at any time.

[0097] The decorative strip 7 is located below the panel 2, and can be coplanar with the panel 2 when the panel 2 is closed. Because the detection component 6 is positioned close to the smoke inlet and at a higher elevation, it has a better field of view and effectively ensures the detection range of the detection component 6.

[0098] like Figure 18 As shown, the edge of the first light-transmitting hole 11 has a second flange 12 extending inward. The second flange 12 can prevent oil stains on the inner surface of the smoke hood 1 from flowing out through the first light-transmitting hole 11, which helps to keep the outer surface of the range hood clean and reduces the difficulty for users to clean the range hood.

[0099] like Figure 11 As shown, the detection component 6 can directly detect the cooking environment through the first light-transmitting hole 11 and the second light-transmitting hole 71. When the panel 2 is closed, the outer wall of the panel 2 and the outer wall of the decorative strip 7 are coplanar. Both the panel 2 and the decorative strip 7 can be made of glass, with the entire glass flap designed in segments: the upper segment is the panel 2, and the lower segment is the decorative strip 7. The decorative strip 7 can also be made of metal, while the panel 2 is made of glass. The detection component 6 can detect the cooking environment through the decorative strip 7, ensuring that the detection process of the detection component 6 is not affected by the opening or closing of the panel 2. This allows the detection head of the detection component 6 to directly detect temperature on the outer surface of the range hood, facilitating the immediate use of the detection component 6.

[0100] The front panel of the smoke hood 1 is inclined relative to the vertical, that is, the front panel of the smoke hood 1 faces downward and forward, and the outer wall of the decorative strip 7 on it also faces downward and forward, thereby making the detection range wider.

[0101] In addition, the above-described embodiments make the decorative strip 7 and the panel 2 appear as one piece when the panel 2 is closed, resulting in a more aesthetically pleasing appearance.

[0102] like Figure 10 As shown, the front panel of the smoke hood 1 is stretched in the middle to form an outwardly protruding mounting groove 13 between the two smoke inlets. The detection component 6 is installed in the mounting groove 13 to reduce the inward protrusion of the detection component 6 and avoid affecting the airflow direction inside the smoke hood 1.

[0103] The smoke collection device also includes a lower hood 8, which is connected to the lower part of the smoke collection hood 1 so that the smoke collection hood 1 and the lower hood 8 form a "7"-shaped structure. For example... Figure 11 As shown, the lower cover 8 includes a front plate 81 extending in a vertical direction. The front plate 81 is located below the decorative strip 7, and there is a vertical gap 82 between the two. The front edge of the bottom end face of the decorative strip 7 is higher than its rear edge, so that oil stains on the surface of the decorative strip 7 are guided to the inner wall of the front plate 81.

[0104] During use, oil stains on the outer surface of the decorative strip 7 flow from top to bottom, then to its bottom end face. Guided by the inclined bottom end face, the oil is directed into the inner surface of the front panel 81, and then flows into the lower cover 8. Finally, it flows into the oil cup 9 through the internal oil passage, effectively preventing oil stains on the surface of the decorative strip 7 from flowing directly to the outer surface of the front panel 81. The bottom end face of the decorative strip 7 can be an inclined plane or an inclined curved surface.

[0105] like Figure 12 and Figure 13As shown, the smoke collection device also includes oil guide strips and an installation structure arranged sequentially from top to bottom. The installation structure is used to install the detection component 6. The oil guide strip can be a continuous structure, meaning the oil travels uninterruptedly on the oil guide strip until it is completely detached; or it can be an intermittent structure, meaning the oil travels on one part of the oil guide strip and then drips onto another part to continue its journey.

[0106] Oil guide strips are installed on both the left and right sides above the mounting structure. Along the left and right direction, the end of the oil guide strip closer to the mounting structure is higher than the end farther away from the mounting structure. The oil guide strips on both sides are symmetrically arranged with respect to the middle mounting structure, forming an "eight" shape. The oil guide strips are used to guide the oil flowing down from top to bottom to the left and right sides of the mounting structure.

[0107] An inclined oil guide strip is installed above the mounting structure to guide the oil flowing down from top to the left and right sides of the mounting structure, thereby reducing the impact of the oil flowing down from above on the detection component 6, reducing the oil pollution around the detection component 6, and improving its service life.

[0108] like Figure 13 and Figure 15 As shown, the oil guide strip located on one side of the mounting structure includes at least a first strip 18 and a second strip 19 arranged intermittently in a vertical direction. The end of the first strip 18 and the second strip 19 closer to the mounting structure is higher than the end away from the mounting structure. That is, the first strip 18 and the second strip 19 have the same inclination direction. The first strip 18 and the second strip 19 can be arranged in parallel or not in parallel.

[0109] The downward projection of the end of the first strip 18 away from the mounting structure falls onto the second strip 19, so that the oil droplets flowing down from the end of the first strip 18 away from the mounting structure can fall onto the second strip 19. The first strip 18 and the second strip 19 are staggered to increase the oil receiving area. Part of the oil flowing down from top to bottom falls onto the first strip 18 and part falls onto the second strip 19. The oil droplets falling onto the first strip 18 will then fall onto the second strip 19 under the guidance of the inclined first strip 18, and finally be discharged from the left and right sides into the oil cup 9.

[0110] like Figure 13 , Figure 15 - Figure 17As shown, in this embodiment, the smoke collection device includes a bellows 15, which is connected to the top of the smoke hood 1. A duct system is installed inside the bellows 15. A first strip 18 is mounted on the bellows 15, and a second strip 19 and the mounting structure are both mounted on the back of the front panel 81 of the smoke hood 1. The oil flowing down the inner wall of the bellows 15 first falls onto the first strip 18, and then drips down onto the second strip 19 of the smoke hood 1. Starting from the bellows 15, the oil path is regulated, thereby guiding the oil to travel in a preset direction. The separately configured oil guide strips can more comprehensively cover the inner walls of the bellows 15 and the smoke hood 1, reducing dead corners.

[0111] Specifically, such as Figure 17 As shown, the top of the fume hood 1 is provided with an assembly port, and the bottom of the air box 15 is provided with a skirt 151 connected to the assembly port. Below the front edge of the skirt 151, there is a downwardly extending folded edge 152. From top to bottom, the folded edge 152 slopes backward, thereby guiding the oil to flow to the rear. At the same time, the lower edge of the folded edge 152 is designed to be inclined with reduced material, that is, the end of the lower edge closer to the mounting structure is higher than the end farther away from the mounting structure, so that the lower edge of the folded edge 152 forms the first strip 18.

[0112] like Figure 13 As shown, the second strip 19 is formed by a strip-shaped rib protruding inward from the inner wall of the front plate 81 of the smoke hood 1. The rib is integrally formed with the inner wall of the front plate 81 of the smoke hood 1. Of course, a split design can also be adopted, that is, the second strip 19 is an independent component relative to the smoke hood 1, and is connected to the smoke hood 1 by means of adhesive bonding or other connection methods.

[0113] like Figure 14 As shown, the edge of the smoke inlet of the smoke collection device is provided with a first flange 171 that folds inward. The first flange 171 can be perpendicular to the front panel of the smoke collection hood 1. The smoke inlet is roughly rectangular. The upper edge of the first flange 171 is located below the end of the oil guide strip away from the mounting structure, that is, below the second strip 19, to receive the oil flowing down from the oil guide strip. In other words, the oil flowing down from the oil guide strip will first drip onto the upper edge of the first flange 171, and then flow outward and fall into the oil cup 9.

[0114] To prevent oil stains on the upper edge of the first flange 171 from flowing toward the detection component 6, the upper edge of the first flange 171 is provided with an upward protrusion 172. In the left-right direction, the first protrusion 172 is located between the end of the corresponding oil guide strip away from the installation structure and the installation structure, so as to block the oil.

[0115] To further prevent oil from flowing into the detection component 6 from the upper edge of the first flange 171, an oil drain 173 is provided on the upper edge of the first flange 171. The oil drain 173 is located between the first protrusion 172 and the mounting structure in the left-right direction. Even if a small amount of oil passes over the first protrusion 172, it will fall from the oil drain 173 onto the oil mesh 16. The oil in the oil mesh 16 will eventually flow into the oil cup 9.

[0116] An oil guide groove 174 can also be provided at the oil leak 173. The upper end of the oil guide groove 174 is connected to the oil leak 173, and the lower end is located behind the oil mesh 16. The oil guide groove 174 and the first protrusion 172 can be connected together, as in this embodiment; in other feasible embodiments, they can also be spaced apart in the left-right direction. The oil guide groove 174 can also be provided with a through hole 21 for connecting to the oil mesh 16, so that the oil mesh 16 and the oil guide groove 174 can be connected by screws. A symmetrical second protrusion 175 can be provided on the other side of the oil guide groove 174 opposite to the first protrusion 172. When the oil guide groove 174 is blocked, the second protrusion 175 can increase the overflow oil level in the oil guide groove 174, slowing down the flow of oil across the oil guide groove 174 towards the detection component 6.

[0117] like Figure 16 As shown, the front panel of the smoke hood 1 has an inclined surface located on the recessed platform 14, with an angle A5° between the inclined surface and the horizontal plane. A5° is between 7° and 15°, which is beneficial for guiding oil droplets. The second strip 19 is set on the inclined surface, which is located directly below the folded edge 152.

[0118] Specifically, such as Figure 21 As shown, the front panel 81 includes an outer trim panel 83 and a back panel 84. The outer trim panel 83 can be made of glass, and the back panel 84 can be made of metal. The back panel 84 can be attached to the back of the outer trim panel 83 with adhesive, and the decorative strip 7 guides the oil stains on it to the back panel 84.

[0119] like Figure 19 and Figure 20 As shown, the lower cover 8 also includes a base plate 85, which is connected to the lower part of the front plate 81. The base plate 85 is provided with multiple smoke inlets 851, which are spaced apart in the left-right direction.

[0120] An oil cup 9 is connected below the base plate 85. The oil cup 9 and the base plate 85 can be connected by a hanging foot and a hook. An inlet 91 communicating with the inside and outside is provided on the side wall of the oil cup 9. In this embodiment, the inlet 91 is provided on the front side of the oil cup 9. In other feasible solutions, the inlet 91 can also be provided on other surfaces, such as the left side and the right side.

[0121] The lower hood 8 has an internal fume duct that connects to a fan assembly. When the fan assembly is working, a negative pressure is created inside the fume duct. From the outside in, the inlet 91, the smoke inlet 851, and the fume duct are connected in sequence to form the bottom smoke inlet duct. The fumes pass through the inlet 91, then through the smoke inlet 851, and enter the interior of the fume duct before being discharged by the fan assembly.

[0122] An oil guiding structure is provided on the back of the front panel 81 to guide the oil condensation on the back of the front panel 81. The oil guiding structure has an oil discharge end. The oil guiding structure guides the oil on the back of the front panel 81 to flow toward the oil discharge end and finally leave from the oil discharge end. The downward projection of the oil discharge end is completely misaligned with the smoke inlet 851.

[0123] After the range hood starts working, the fumes first enter the inlet 91 of the oil cup 9, and then pass through the smoke inlet 851 before entering the fume duct inside the lower hood 8. Through the bottom smoke inlet duct, the fumes are drawn in from the bottom of the lower hood 8, increasing the coverage area of ​​the range hood and reducing blind spots. Furthermore, as the fumes pass through the fume duct, some fumes condense on the back of the front panel 81 and flow downwards. The oil guiding structure can collect the oil flowing down from the back of the front panel 81 and guide it in a fixed direction. Under the guidance of the oil guiding structure, the oil on the back of the front panel 81 will be discharged from the oil outlet of the oil guiding structure and detach from the back of the front panel 81. The downward projection of the oil outlet is completely misaligned with the smoke inlet 851, preventing the oil detached from the back of the front panel 81 from passing through the smoke inlet 851 and falling onto the stovetop.

[0124] like Figure 21 and Figure 22 As shown, a connecting part 842 is provided below the back plate 84. The connecting part 842 is plate-shaped and roughly "L"-shaped with the back plate 84. The connecting part 842 is located above the bottom plate 85 and behind the smoke inlet 851. The connecting part 842 is connected to the bottom plate 85 by a first locking member. The connecting part 842 and the oil drain end of the back plate 84 are connected by a connecting rib 841. From front to back, the connecting rib 841 slopes downward. The downward projection of the connecting rib 841 is completely misaligned with the smoke inlet 851.

[0125] The back plate 84, connecting rib 841, and connecting part 842 can be an integral structure. The connecting part 842 is connected to the base plate 85 by a first locking element, such as a screw and nut. Then, the outer trim panel 83 is glued to the back plate 84 to improve the stability of the back plate 84. Furthermore, in order to avoid obstructing the smoke inlet 851, the connecting part 842 and the back plate 84 are connected by connecting rib 841. There can be multiple connecting ribs 841, which are arranged at intervals in the left and right direction. The gap between two adjacent connecting ribs 841 is used for the passage of oil fumes. In addition, the inclined connecting rib 841 can play the purpose of guiding oil. The oil flowing out of the oil discharge end of the oil guiding structure flows onto the connecting rib 841, and then the oil flows backward along the inclined connecting rib 841 and enters the connecting part 842 from above the smoke inlet 851. Furthermore, since the downward projection of the connecting rib 841 is completely misaligned with the smoke inlet 851, even if some oil drips from the connecting rib 841, it will not pass directly through the smoke inlet 851, but will fall onto the base plate 85.

[0126] like Figure 23 As shown, the width of different connecting ribs 841 can be set to different values. For example, connecting ribs 841 with widths of L2 and L1 can be set.

[0127] like Figure 29 As shown, the rear edge of the connecting part 842 can be located approximately above the second oil leakage hole 8421 of the bottom plate 85. That is, the oil flowing to the connecting part 842 can then flow backward and fall onto the bottom wall 852 of the protrusion of the bottom plate 85, and then flow into the oil cup 9 from the second oil leakage hole 8421 on the bottom wall 852.

[0128] like Figure 22 As shown, the lower end face of the back plate 84 has an upwardly extending notch, which includes a first inclined wall 843 and a second inclined wall 844 set at an angle. From top to bottom, the distance between the first inclined wall 843 and the second inclined wall 844 gradually increases; the lower ends of the first inclined wall 843 and the second inclined wall 844 both form oil drain ends.

[0129] Specifically, the notch can be formed by cutting the back plate 84. The notch includes a first inclined wall 843 and a second inclined wall 844 set at an angle. The first inclined wall 843 and the second inclined wall 844 are inverted "V" shape. The lower ends of the first inclined wall 843 and the second inclined wall 844 form oil discharge ends. When the oil flowing down from above comes into contact with the first inclined wall 843 or the second inclined wall 844, it will flow along the corresponding inclined wall.

[0130] Specifically, in this embodiment, there are multiple notches. In two adjacent notches, the first inclined wall 843 of one notch and the second inclined wall 844 of the other notch are connected to the connecting part 842 by the same connecting rib 841. That is, the two notches guide the oil stains to one connecting rib 841, reducing the number of connecting ribs 841 and reducing the resistance of the connecting ribs 841 to the oil fumes.

[0131] like Figure 24 - Figure 27 As shown, the smoke collection device also includes a bottom connecting plate 86, which is located above the connecting part 842. The left and right ends of the bottom connecting plate 86 are respectively connected to the left and right outer walls of the lower cover 8. The bottom connecting plate 86 is connected to the bottom plate 85 through a second locking member. The bottom connecting plate 86 has a second guide slope 861, which slopes downward from front to back. A smoke guide hole 862 aligned with the smoke inlet hole 851 is provided on the second guide slope 861.

[0132] like Figure 27 - Figure 29 As shown, the bottom connecting plate 86 connects the left and right outer walls of the lower cover 8, increasing the overall stability of the lower cover 8. Furthermore, the bottom connecting plate 86 and the base plate 85 are connected together by a second locking element, such as screws and nuts, further increasing the stability of the base plate 85. Oil fumes passing through the gaps between the connecting ribs 841 will eventually enter the fan assembly through the oil guide holes of the second guide slope 861. The smoke guide holes 862 on the inclined second guide slope 861 prevent oil stains on the upper surface of the bottom connecting plate 86 from dripping from the oil guide holes. The oil stains will flow backward along the second guide slope 861 and eventually fall into the oil cup 9 through the first oil leakage hole 87 on the rear side of the bottom connecting plate 86. The inclination angle F of the second guide slope 861 is approximately 10°. Figure 9 and Figure 10 As shown, let the diameter of the smoke guide hole 862 be L6 and the diameter of the smoke inlet hole 851 be L3-1. Then L6 > L3-1, so as to avoid the smoke guide hole 862 blocking the smoke inlet hole 851.

[0133] like Figure 20 and Figure 26 As shown, a downwardly protruding part is provided on the outer wall of the base plate 85. The protrusion is formed by stretching. Along the left-right direction, the cross-sectional shape of the protrusion is approximately an inverted trapezoid, and its length in the left-right direction is L4. The length of the oil cup 9 inlet 91 is L5, where L5 > L4, so that the oil cup 9 can completely cover the protrusion without obstructing the smoke inlet 851. The protrusion includes a bottom wall 852 and a front wall 853 connected to each other. The bottom wall 852 is arranged in the horizontal direction and has a second oil leakage hole 8421. The downward projection of the second oil leakage hole 8421 falls inside the oil cup 9.

[0134] like Figure 20As shown, from front to back, the front wall 853 slopes downward, the smoke inlet 851 is set on the front wall 853, and the projection of the lowest point of the front wall 853 downward falls into the oil cup 9. The oil stains on the outer side of the front wall 853 can flow downward along its outer side and fall into the oil cup 9 at the lowest position, while the oil stains on the inner side of the front wall 853 will flow onto the bottom wall 852 and then flow out from the second oil leakage hole 8421.

[0135] like Figure 20 As shown, the base plate 85 also includes an upper wall 854 connected to and located above the front wall 853. The upper wall 854 is vertically arranged, and the front wall 853 and the upper wall 854 are arranged at an angle. The upper wall 854 extends in the left and right direction, and its left and right ends can be flush with the outer trim panel 83 and fit against the lower outer wall of the outer trim panel 83. The upper wall 854 can cover the lower edge of the outer trim panel 83. Oil stains on the outer trim panel 83 can flow into the upper wall 854, and then flow down and up into the front wall 853, and finally fall into the oil cup 9.

[0136] like Figure 29 As shown, in order to prevent oil stains dripping onto the front wall 853 from flowing out of the smoke inlet 851, a third flange 8511 protruding inward is provided on the inner opening edge of the smoke inlet 851. The third flange 8511 has a certain height, thereby preventing oil stains from entering the smoke inlet 851.

[0137] The range hood provided by this invention includes the aforementioned smoke collection device. Because the range hood provided by this invention utilizes the aforementioned smoke collection device, it also possesses the advantages of a smoke collection device.

[0138] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A fume extraction device, characterized in that, The utility model relates to a smoke collecting device, which comprises a smoke hood (1), a panel (2) and a wire protection tube (3). The panel (2) is hinged to the smoke hood (1), and the back of the panel (2) is used for mounting electrical components with cables (4). The smoke hood (1) is provided with a through hole (21) for communication between the inside and outside of the smoke hood (1). One end of the wire protection tube (3) is connected to the panel (2), and the other end penetrates through the through hole (21) and is located inside the smoke hood (1), so that the distal end of the cable (4) passes through the wire protection tube (3) from outside to inside and is located inside the smoke hood (1). The wire protection tube (3) is hinged to the panel (2), and the smoke hood (1) is provided with a first guide inclined surface (31) located below the wire protection tube (3), and the wire protection tube (3) is in sliding contact with the first guide inclined surface (31).

2. The smoke device of claim 1, wherein, The panel (2) has an open state and a closed state, and when the panel (2) is switched from the open state to the closed state, the swing angle of the panel (2) is b, the swing angle of the wire protection tube (3) is a, and from outside to inside, the first guide inclined surface (31) is inclined upward, so that a is less than b. When the panel (2) is in the open state and the closed state, the end of the wire protection tube (3) away from the panel (2) is inside the smoke hood (1).

3. The air management device of claim 1, wherein, An arc-shaped chamfer (32) is arranged between the end face of the wire outlet end of the wire protection tube (3) and the inner tube wall thereof.

4. The air management device of claim 1, wherein, The smoke collecting device further comprises a first wire protection groove (23) located between the electrical components and the wire protection tube (3), the first wire protection groove (23) is buckled on the back of the panel (2) and surrounds the panel (2) to form a first wire passing channel for the cable (4).

5. The air management device of claim 1, wherein, The back of the panel (2) is provided with a rear cover (22), the rear cover (22) surrounds a cavity with the panel (2), and the electrical components are located in the cavity; the wire outlet of the cavity is in communication with the wire inlet of the first wire passing channel; 6. The air management device of claim 5, wherein, And / or, the panel (2) is provided with a hinge frame and a second wire protection groove (25), the panel (2) is hinged to the smoke hood (1) through the hinge frame; the second wire protection groove (25) is arranged between the first wire protection groove (23) and the hinge frame, and the second wire protection groove (25) is used for preventing the cable (4) from contacting the hinge frame; And / or, the wire outlet of the first wire passing channel is perpendicular to the swing plane of the wire protection tube (3), so that the cable (4) enters the wire protection tube (3) after a 90° turn from the first wire passing channel. The wire protection tube (3) comprises a groove body (33) and a groove cover (34); the outer end of the groove body (33) is hinged to the panel (2); the groove cover (34) comprises a top plate and a frame (341) located at the inner end of the top plate, the top plate covers the opening of the groove body (33), and the two form a tubular structure; the frame (341) is located at the inner end of the groove body (33), and the frame (341) forms the wire outlet of the wire protection tube (3).

7. The air management device of claim 1, wherein, ​ 8. The air management device of claim 7, wherein, The top plate is provided with a buckle (342) extending toward the bottom of the groove (33), and the groove wall of the groove (33) is provided with a buckle hole (331) that engages with the buckle (342).

9. The fume hood of any one of claims 1-8, wherein the fume hood further comprises a light source positioned to direct light onto the work surface. The smoke collection device further includes a detection component (6) disposed inside the smoke collection hood (1); The front panel of the smoke hood (1) is provided with a smoke inlet; The panel (2) is rotatably connected to the front panel of the smoke hood (1); a decorative strip (7) located in front of the smoke inlet is also connected to the front panel of the smoke hood (1); a second light-transmitting hole (71) is provided on the decorative strip (7), and the detection component (6) detects the cooking environment through the second light-transmitting hole (71); When the panel (2) is in the open state or the closed state, the panel (2) does not block the second light-transmitting hole (71).

10. The smoke device of claim 9, wherein, The smoke collection device also includes a lower cover (8), which is connected below the smoke collection hood (1); The lower cover (8) includes a front panel (81) extending in a vertical direction. The front panel (81) is located below the decorative strip (7) and there is a vertical gap (82) between them. The front edge of the bottom end face of the decorative strip (7) is higher than its rear edge so that the oil stains on the surface of the decorative strip (7) are directed to the inner wall of the front panel (81).

11. The air management device of claim 10, wherein, The lower cover (8) also includes a bottom plate (85), which is connected to the bottom of the front plate (81); the bottom plate (85) is provided with a smoke inlet (851); An oil cup (9) is connected below the bottom plate (85), and an inlet (91) connecting the inside and outside is provided on the side wall of the oil cup (9); the lower cover (8) has an oil fume channel inside; from the outside to the inside, the inlet (91), the smoke inlet hole (851) and the oil fume channel are connected in sequence to form a bottom smoke inlet channel; The back of the front plate (81) is provided with an oil guiding structure, which has an oil discharge end. The oil guiding structure is used to guide the oil on the back of the front plate (81) and discharge it from the oil discharge end. The downward projection of the oil discharge end is completely misaligned with the smoke inlet (851).

12. The fume hood of any one of claims 1-8, wherein, The smoke collection device also includes oil guide strips and an installation structure arranged sequentially from top to bottom, the installation structure being used to install the detection components; The oil guide strips are provided on both the left and right sides above the mounting structure. Along the left and right direction, the end of the oil guide strip closer to the mounting structure is higher than the end of the oil guide strip farther away from the mounting structure. The oil guide strips are used to guide the oil flowing down from top to bottom to the left and right sides of the mounting structure.

13. The air management device of claim 12, wherein, The smoke collection device also includes a bellows (15), which is connected to the top of the smoke collection hood (1); The bottom of the bellows (15) is provided with a skirt (151) connected to the smoke hood (1). The lower edge of the skirt (151) is provided with a downwardly extending folded edge (152). From top to bottom, the folded edge (152) is inclined backward. The lower edge of the folded edge (152) is higher at the end closer to the mounting structure than at the end farther away from the mounting structure. The smoke hood (1) has a strip-shaped rib protruding inward from the inner wall of the front plate (81); The lower edge of the folded edge (152) and the end of the strip rib near the mounting structure are both higher than the end away from the mounting structure; The projection of the lower edge of the folded edge (152) away from the mounting structure downwards falls on the strip rib, so that the oil droplets flowing down from the lower edge of the folded edge (152) away from the mounting structure can fall on the strip rib.

14. A range hood characterized by Includes the smoke collection device according to any one of claims 1-13.

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