Flow guide assembly, smoke collecting device and range hood

Abstract

The utility model provides a flow guide assembly, a smoke collecting device and a range hood, and relates to the technical field of kitchen appliances, the flow guide assembly provided by the embodiment of the utility model comprises a left flow guide part and a right flow guide part, the left flow guide part is used for being mounted on the left side in a smoke collecting hood, and the right flow guide part is used for being mounted on the right side in the smoke collecting hood; the left flow guide part and the right flow guide part are arranged at intervals in the left-right direction; the left flow guide piece comprises a first left flow guide surface, an arc-shaped left flow guide surface and a second left flow guide surface which are sequentially connected in the oil smoke flowing direction; the right flow guide piece comprises a first right flow guide surface, an arc-shaped right flow guide surface and a second right flow guide surface which are sequentially connected in the oil fume flowing direction; the distance between the first left flow guide surface and the first right flow guide surface is gradually reduced in the direction perpendicular to the plane where the smoke inlet of the smoke collecting hood is located and from outside to inside; and the distance between the second left flow guide surface and the second right flow guide surface is gradually reduced from inside to outside in the direction perpendicular to the plane where the smoke outlet of the smoke collecting hood is located.

Description

Technical Field

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

[0002] The smoke hood is equipped with a flow guiding component, which guides the airflow into the smoke hood and upwards into the fan assembly, so that the oil fumes are absorbed by the fan assembly and discharged from the check valve.

[0003] Existing airflow guiding components have sharp edges, which cause airflow to encounter resistance and reduce airflow speed. Utility Model Content

[0004] The purpose of this invention is to provide a flow guiding component, a smoke collection device, and a range hood to alleviate the technical problem of existing flow guiding components obstructing airflow.

[0005] In a first aspect, the present utility model provides a flow guiding component, including: a left flow guiding component and a right flow guiding component, wherein the left flow guiding component is used to be installed on the inside left side of the smoke collection hood, and the right flow guiding component is used to be installed on the inside right side of the smoke collection hood, and the left flow guiding component and the right flow guiding component are spaced apart in the left-right direction;

[0006] The left guide component includes a first left guide surface, an arc-shaped left guide surface, and a second left guide surface connected in sequence along the direction of oil fume flow; the right guide component includes a first right guide surface, an arc-shaped right guide surface, and a second right guide surface connected in sequence along the direction of oil fume flow.

[0007] Along the plane perpendicular to the smoke inlet of the smoke hood, and from the outside to the inside, the distance between the first left guide surface and the first right guide surface gradually decreases; along the plane perpendicular to the smoke outlet of the smoke hood, and from the inside to the outside, the distance between the second left guide surface and the second right guide surface gradually decreases.

[0008] Furthermore, both the left and right guide vanes are provided with porous structures that penetrate their respective surfaces; noise reduction components are provided on the surfaces of the left and right guide vanes that face away from each other.

[0009] The present invention provides a smoke collection device, including a smoke collection hood and the aforementioned flow guiding component.

[0010] Furthermore, the left guide is connected to the inner wall of the smoke hood, and the side of the left guide facing away from the right guide and the inner wall of the smoke hood form a left cavity.

[0011] The right guide is connected to the inner wall of the smoke hood, and the side of the right guide facing away from the left guide and the inner wall of the smoke hood form a right cavity.

[0012] A fume channel is formed between the left and right guide components, but the fume channel is not connected to the left and right cavities.

[0013] Furthermore, the smoke hood includes a back panel, a top panel, and a front panel connected in sequence from end to end;

[0014] The front parts of the left and right air guides are connected to the front panel; the tops of the left and right air guides are connected to the top plate; and the backs of the left and right air guides are connected to the back plate.

[0015] Furthermore, the smoke hood is rotatably connected to a baffle that opens and closes the smoke inlet;

[0016] The smoke collection device also includes a drive unit with one end connected to the smoke collection hood and the other end connected to the baffle. A part of the drive unit is located in the left cavity and / or the right cavity and is connected to the smoke collection hood; the other part of the drive unit passes through the front panel and is connected to the baffle.

[0017] Furthermore, the top plate has a left connecting plate surface and a right connecting plate surface corresponding to the left cavity and the right cavity respectively, and assembly holes are provided on both the left connecting plate surface and the right connecting plate surface;

[0018] The smoke collection device also includes a left cover plate and a right cover plate. The left cover plate is used to connect with the smoke collection hood and covers the top of the left connecting plate to seal the upper part of the left cavity. The right cover plate is used to connect with the smoke collection hood and covers the top of the right connecting plate to seal the upper part of the right cavity.

[0019] Furthermore, the top panel is parallel to the horizontal plane; the back panel is parallel to the vertical plane; and the front panel is inclined to both the horizontal and vertical planes.

[0020] Furthermore, the front panel of the smoke hood has an inwardly recessed platform, and the bottom surface of the platform has a smoke inlet.

[0021] The smoke collection device also includes an oil mesh, which is laid flat inside the settling platform and covers the smoke inlet.

[0022] Thirdly, the present invention provides a range hood that includes the aforementioned smoke collection device.

[0023] The flow guiding component provided in this embodiment of the utility model includes: a left flow guiding component and a right flow guiding component. The left flow guiding component is used to be installed on the inner left side of the smoke collection hood, and the right flow guiding component is used to be installed on the inner right side of the smoke collection hood. The left flow guiding component and the right flow guiding component are spaced apart in the left-right direction. The left flow guiding component includes a first left flow guiding surface, an arc-shaped left flow guiding surface and a second left flow guiding surface connected in sequence along the direction of smoke flow. The right flow guiding component includes a first right flow guiding surface, an arc-shaped right flow guiding surface and a second right flow guiding surface connected in sequence along the direction of smoke flow. Along the plane perpendicular to the smoke inlet of the smoke collection hood and from the outside to the inside, the distance between the first left flow guiding surface and the first right flow guiding surface gradually decreases. Along the plane perpendicular to the smoke outlet of the smoke collection hood and from the inside to the outside, the distance between the second left flow guiding surface and the second right flow guiding surface gradually decreases.

[0024] The left and right guide vanes, positioned on either side of the fume hood, form a guide channel in the center of the hood corresponding to the smoke inlet. Along a plane perpendicular to the smoke inlet of the hood, from the outside in, the distance between the first left and right guide vanes gradually decreases, forming the first conical guide area. Similarly, along a plane perpendicular to the smoke outlet of the hood, from the inside out, the distance between the second left and right guide vanes gradually decreases, forming the second conical guide area. Negative pressure diffusion and fume gathering occur through this channel. Specifically, the negative pressure generated by the fan inside the fan box passes sequentially through the second and first conical guide areas before diffusing outwards, creating a uniform negative pressure area above the stove after passing through the smoke inlet of the hood, which is more conducive to smoke collection. Conversely, the fumes, from the outside in, pass sequentially through the first and second conical guide areas before gathering towards the fan, which is more conducive to fume aggregation. Furthermore, in this design, the first left guide surface and the second left guide surface transition through an arc-shaped left guide surface, and the first right guide surface and the second right guide surface transition through an arc-shaped right guide surface. This reduces the obstruction to airflow and is more conducive to increasing fluid velocity than sharp edges, thus improving smoke extraction efficiency. Attached Figure Description

[0025] To more clearly illustrate the specific embodiments of this utility model 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 this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0026] Figure 1 A schematic diagram of a range hood provided for an embodiment of this utility model;

[0027] Figure 2 A schematic diagram of the smoke collection device provided in an embodiment of this utility model;

[0028] Figure 3 A schematic diagram of the left guide member of the guide assembly provided in an embodiment of this utility model;

[0029] Figure 4 A schematic diagram of the right guide member of the guide assembly provided in an embodiment of this utility model;

[0030] Figure 5 A schematic diagram of the range hood without the left and right cover plates provided in this embodiment of the utility model;

[0031] Figure 6 A schematic diagram of the assembly of the left and right cover plates of the range hood provided in this embodiment of the utility model;

[0032] Figure 7 A schematic diagram of the assembly of the detection components of the range hood provided in this embodiment of the utility model;

[0033] Figure 8 A cross-sectional view of the decorative strip position of a range hood provided in an embodiment of this utility model.

[0034] Icons: 100 - Left guide vane; 110 - First left guide surface; 120 - Arc-shaped left guide surface; 130 - Second left guide surface;

[0035] 200 – Right guide vane; 210 – First right guide surface; 220 – Arc-shaped right guide surface; 230 – Second right guide surface;

[0036] 300 – Smoke hood; 310 – Back panel; 320 – Top panel; 330 – Front panel; 331 – First stretching surface; 332 – Second stretching surface; 333 – Third stretching surface;

[0037] 400 - Porous structure;

[0038] 510 - Baffle; 520 - Drive component;

[0039] 610 - Left connecting plate; 620 - Right connecting plate; 630 - Left cover plate; 640 - Right cover plate;

[0040] 700 - Bellows;

[0041] 810 – Detection component; 820 – First light-transmitting hole; 830 – Second flange; 840 – Second light-transmitting hole; 850 – Decorative strip; 860 – Vertical gap; 870 – Front panel. Detailed Implementation

[0042] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0043] like Figure 1 As shown, the flow guiding component provided in this embodiment of the utility model is used to be installed inside the smoke collection hood 300 of the range hood to guide the oil fumes flowing from the outside to the inside, thereby guiding the oil fumes into the fan assembly above the smoke collection hood 300.

[0044] like Figure 2 - Figure 4 As shown, the flow guiding assembly includes a left flow guiding component 100 and a right flow guiding component 200. The left flow guiding component 100 is installed on the inside left side of the smoke collection hood 300, and the right flow guiding component 200 is installed on the inside right side of the smoke collection hood 300. The left flow guiding component 100 and the right flow guiding component 200 are spaced apart in the left-right direction, and the area between them forms a flow guiding channel. The oil fumes flowing in from the smoke inlet are guided upward by the flow guiding channel and enter the fan assembly inside the air box 700 through the smoke outlet of the smoke collection hood 300.

[0045] The left guide 100 includes a first left guide surface 110, an arc-shaped left guide surface 120, and a second left guide surface 130 connected in sequence along the direction of oil fume flow. Correspondingly, the right guide 200 includes a first right guide surface 210, an arc-shaped right guide surface 220, and a second right guide surface 230 connected in sequence along the direction of oil fume flow.

[0046] The left guide 100 and the right guide 200 can be set symmetrically, or there may be some differences that result in them not being symmetrical.

[0047] Along the plane perpendicular to the smoke inlet of the smoke hood 300 and from the outside in, the distance between the first left guide surface 110 and the first right guide surface 210 gradually decreases, forming a conical structure. Along the plane perpendicular to the smoke outlet of the smoke hood 300 and from the inside out, the distance between the second left guide surface 130 and the second right guide surface 230 gradually decreases, also forming a conical structure.

[0048] The left guide member 100 and right guide member 200, located on the left and right sides of the smoke hood 300, can form a guide channel in the middle of the smoke hood 300 corresponding to the smoke inlet. Along the plane perpendicular to the smoke inlet of the smoke hood 300 and from the outside to the inside, the distance between the first left guide surface 110 and the first right guide surface 210 gradually decreases, forming a first conical guide area; along the plane perpendicular to the smoke outlet of the smoke hood 300 and from the inside to the outside, the distance between the second left guide surface 130 and the second right guide surface 230 gradually decreases, forming a second conical guide area. Negative pressure diffusion and fume gathering occur through this channel. Specifically, the negative pressure generated by the fan inside the air box 700 flows outward through the second and first conical guide areas, then diffuses through the smoke inlet of the fume hood 300 and forms a uniform negative pressure area above the stove, which is more conducive to fume gathering. Conversely, the fumes flow inward through the first and second conical guide areas and gather towards the fan, which is more conducive to fume aggregation. Furthermore, in this design, the first left guide surface 110 and the second left guide surface 130 transition through the arc-shaped left guide surface 120, and the first right guide surface 210 and the second right guide surface 230 transition through the arc-shaped right guide surface 220, which reduces airflow obstruction and is more conducive to increasing fluid velocity than sharp edges, thus improving smoke extraction efficiency.

[0049] The first left guide surface 110 and the second left guide surface 130 can be tangent to the arc-shaped left guide surface 120 respectively. Similarly, the first right guide surface 210 and the second right guide surface 230 are tangent to the arc-shaped right guide surface 220, thereby making the various surfaces on the left guide component 100 and the right guide component 200 transition smoothly.

[0050] like Figure 3 and Figure 4 As shown, both the left guide 100 and the right guide 200 are provided with a porous structure 400 that penetrates their respective surfaces; noise reduction components are provided on the surfaces of the left guide 100 and the right guide 200 that face away from each other. The noise reduction components can be sound-absorbing cotton. The noise reduction components absorb noise through the porous structure 400, thereby reducing the noise generated inside the smoke hood 300.

[0051] The smoke collection device provided by this utility model includes a smoke collection hood 300 and the aforementioned flow guiding component.

[0052] The left guide 100 is connected to the inner wall of the smoke hood 300, and the side of the left guide 100 facing away from the right guide 200 and the inner wall of the smoke hood 300 form a left cavity; the right guide 200 is connected to the inner wall of the smoke hood 300, and the side of the right guide 200 facing away from the left guide 100 and the inner wall of the smoke hood 300 form a right cavity; an oil fume channel is formed between the left guide 100 and the right guide 200, and the oil fume channel is not connected to the left cavity and the right cavity.

[0053] The left guide 100 and right guide 200, located on the left and right sides inside the fume hood 300, divide the internal space of the fume hood 300 into a left cavity, a fume duct, and a right cavity arranged sequentially from left to right, and the fume duct is not connected to the left and right cavities. Electrical components can be arranged in the left and right cavities, which can reduce the pollution of electrical components by fumes. The noise reduction components located on the back of the left guide 100 and right guide 200 are located in the left and right cavities respectively, which can reduce the contamination of the noise reduction components by grease.

[0054] Specifically, such as Figure 1 , Figure 2 and Figure 5 As shown, the smoke hood 300 includes a back plate 310, a top plate 320, and a front panel 330 connected end to end. The smoke outlet is located on the top plate 320. The top plate 320 is parallel to the horizontal plane, the back plate 310 is parallel to the vertical plane, and the front panel 330 is inclined to both the horizontal and vertical planes. The back plate 310, top plate 320, and front panel 330 roughly form a triangular structure. The front panel 330 has an inclined irregular design, and the top front view of the smoke hood 300 has an angled design.

[0055] The front parts of the left guide vane 100 and the right guide vane 200 are both connected to the front panel 330 and secured with screws; the tops of the left guide vane 100 and the right guide vane 200 are both connected to the top plate 320 and secured with screws; the backs of the left guide vane 100 and the right guide vane 200 are both connected to the back plate 310 and secured with screws. The connection between the left guide vane 100 and the right guide vane 200 to the front panel 330 at the front, to the back plate 310 at the back, and to the top plate 320 at the top, forms a stable triangular structure, which enhances the overall strength and stability of the machine, improving its safety performance.

[0056] like Figure 1 As shown, a baffle 510 for opening and closing the smoke inlet is rotatably connected to the smoke hood 300; the smoke collection device also includes a drive member 520 with one end connected to the smoke hood 300 and the other end connected to the baffle 510. A part of the drive member 520 is located in the left or right cavity and is connected to the smoke hood 300; the other part of the drive member 520 passes through the front panel 330 and is connected to the baffle 510.

[0057] The driving component 520 includes an electric push rod. The top of the baffle 510 is fixed to the smoke hood 300 via a pivot. The opening and closing of the baffle 510 is controlled by the extension and retraction of the electric push rod. In this embodiment, the electric push rod is installed on the left side of the smoke hood 300, with its rear end fastened to the back plate 310 and the top plate 320, and its front end fixed to the baffle 510. The left cavity contains electrical components such as wiring terminals for installing the electric push rod and connecting wires. The design of the left and right guide components 200 can isolate the oil fumes from the electrical components inside this sealed space, effectively protecting the safety and durability of the electrical components and improving the safety of the entire machine. In other feasible solutions, the electric push rod can also be installed on the right side of the smoke hood 300, i.e., the right cavity contains electrical components such as wiring terminals for installing the electric push rod and connecting wires; or electric push rods can be provided on both the left and right sides, i.e., the left and right cavities contain electrical components such as wiring terminals for installing the electric push rod and connecting wires, with the two electric push rods pushing the baffle 510 from the left and right sides. The left guide 100 and the right guide 200 can divide the fume hood 300 into three independent parts horizontally (left and right direction). The middle part is the oil fume path. The middle part is independent of the left and right cavities on the left and right sides. In other words, the oil fumes in the middle part cannot enter the left and right cavities. This ensures that the electrical components such as the electric push rod and the wiring terminals of the connecting wires set in the left and right cavities are not contaminated by oil fumes, improves the cleanliness of the environment around the electrical components, and extends their service life.

[0058] like Figure 5 and Figure 6 As shown, the top plate 320 has a left connecting plate surface 610 and a right connecting plate surface 620 corresponding to the left and right cavities, respectively. Both the left and right connecting plate surfaces 610 and 620 are provided with mounting holes for wiring installation. The smoke collection device also includes a left cover plate 630 and a right cover plate 640. The left cover plate 630 is used to connect to the smoke collection hood 300 and covers the left connecting plate surface 610 to seal the upper part of the left cavity. The right cover plate 640 is used to connect to the smoke collection hood 300 and covers the right connecting plate surface 620 to seal the upper part of the right cavity. This prevents oil fumes from the external air from entering the left and right cavities through the mounting holes, thus forming a relatively closed cavity between the left and right cavities.

[0059] like Figure 2 As shown, the front panel 330 of the smoke hood 300 has an inwardly recessed platform, and the bottom surface of the platform has a smoke inlet; the smoke collection device also includes an oil mesh ( Figure 2(Not shown) The oil mesh is laid flat inside the recessed platform and covers the flue gas inlet. The oil mesh can be flush with the front panel 330 for easy wiping and a more aesthetically pleasing appearance. In this embodiment, there are two recessed platforms, corresponding to the left and right burners. Each recessed platform is equipped with a flue gas inlet and an oil mesh. The recessed platform on the front panel 330 is formed by multiple stretching processes, resulting in a first stretching surface 331, a second stretching surface 332, and a third stretching surface 333. The second stretching surface 332 forms the recessed platform, and the third stretching surface 333 is located between the two flue gas inlets, separating them. The first stretching surface 331 is located on the left and right sides of the two flue gas inlets.

[0060] like Figure 1 and Figure 7 As shown, a detection component 810 is installed inside the fume hood 300; a smoke inlet is provided on the front panel of the fume hood 300. A baffle 510 is rotatably connected to the front panel of the fume hood 300; a decorative strip 850 located in front of the smoke inlet is also connected to the front panel of the fume hood 300; a second light-transmitting hole 840 is provided on the decorative strip 850, through which the detection component 810 detects the cooking environment; when the baffle 510 is in the open or closed state, the baffle 510 does not block the second light-transmitting hole 840.

[0061] The detection component 810 is disposed inside the fume hood 300. A first light-transmitting hole 820 may be provided on the front panel of the fume hood 300. The first light-transmitting hole 820 and a second light-transmitting hole 840 are aligned front to back, allowing the detection component 810 to detect the cooking environment through the first light-transmitting hole 820 and the second light-transmitting hole 840. Because the baffle 510 does not obstruct the second light-transmitting hole 840 when it is open or closed, the detection process of the detection component 810 is not affected by the opening or closing of the baffle 510, facilitating the use of the detection component 810 at any time.

[0062] The decorative strip 850 is located below the baffle 510. When the baffle 510 is in the closed state, the decorative strip 850 can be coplanar with the baffle 510. Since the detection component 810 is set close to the smoke inlet, its position is relatively high, providing a better detection field of view and effectively ensuring the detection range of the detection component 810.

[0063] The edge of the first light-transmitting hole 820 has a second flange 830 extending inward. The second flange 830 can prevent oil stains on the inner surface of the fume hood 300 from flowing out through the first light-transmitting hole 820, which helps to keep the outer surface of the range hood clean and reduces the difficulty for users to clean the range hood.

[0064] The detection component 810 can directly detect the cooking environment through the first light-transmitting hole 820 and the second light-transmitting hole 840. When the baffle 510 is closed, the outer wall of the baffle 510 is coplanar with the outer wall of the decorative strip 850. Both the baffle 510 and the decorative strip 850 can be made of glass, with the entire glass flap designed in segments: the upper segment is the baffle 510, and the lower segment is the decorative strip 850. The decorative strip 850 can also be made of sheet metal, while the baffle 510 is made of glass. The detection component 810 can detect the cooking environment through the decorative strip 850, ensuring that the detection process of the detection component 810 is not affected by the opening and closing of the baffle 510. This allows the detection head of the detection component 810 to directly detect temperature on the outer surface of the range hood, facilitating its immediate use.

[0065] The front panel of the smoke hood 300 is inclined relative to the vertical, that is, the front panel of the smoke hood 300 faces downward and forward, and the outer wall of the decorative strip 850 on it also faces downward and forward, thereby making the detection range wider.

[0066] In addition, the above-described embodiments make the decorative strip 850 and the baffle 510 appear as one piece when the baffle 510 is closed, resulting in a more aesthetically pleasing appearance.

[0067] like Figure 8 As shown, a lower hood is connected below the smoke hood 300, and the smoke hood 300 and the lower hood form a "7"-shaped structure. The lower hood includes a front panel 870 extending vertically, which is located below the decorative strip 850, with a vertical gap 860 between them. The front edge of the bottom end face of the decorative strip 850 is higher than its rear edge, so that oil stains on the surface of the decorative strip 850 are guided to the inner wall of the front panel 870.

[0068] During use, oil stains on the outer surface of the decorative strip 850 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 870, flowing into the lower cover body and ultimately into the oil cup through internal oil channels. This effectively prevents oil stains on the surface of the decorative strip 850 from flowing directly to the outer surface of the front panel 870. The bottom end face of the decorative strip 850 can be an inclined flat surface or an inclined curved surface.

[0069] The range hood provided by this utility model includes the above-mentioned smoke collection device. The range hood includes a wind box 700, and a fan assembly is installed inside the wind box 700.

[0070] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model 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 therein. Such 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 this utility model.

Claims

1. A flow guiding component, characterized in that, include: A left guide (100) and a right guide (200) are provided, wherein the left guide (100) is installed on the inside left side of the smoke hood (300), and the right guide (200) is installed on the inside right side of the smoke hood (300), and the left guide (100) and the right guide (200) are spaced apart in the left-right direction; The left guide (100) includes a first left guide surface (110), an arc-shaped left guide surface (120), and a second left guide surface (130) connected sequentially along the direction of oil fume flow; the right guide (200) includes a first right guide surface (210), an arc-shaped right guide surface (220), and a second right guide surface (230) connected sequentially along the direction of oil fume flow. Along the plane perpendicular to the smoke inlet of the smoke hood (300) and from the outside in, the distance between the first left guide surface (110) and the first right guide surface (210) gradually decreases; along the plane perpendicular to the smoke outlet of the smoke hood (300) and from the inside out, the distance between the second left guide surface (130) and the second right guide surface (230) gradually decreases.

2. The flow guiding component according to claim 1, characterized in that, Both the left guide (100) and the right guide (200) are provided with a porous structure (400) that penetrates their respective surfaces; noise reduction components are provided on the surfaces of the left guide (100) and the right guide (200) that face away from each other.

3. A smoke collection device, characterized in that, It includes a smoke hood (300) and a flow guiding component as described in any one of claims 1-2.

4. The smoke collection device according to claim 3, characterized in that, The left guide (100) is connected to the inner wall of the smoke hood (300), and the side of the left guide (100) facing away from the right guide (200) and the inner wall of the smoke hood (300) form a left cavity; The right guide (200) is connected to the inner wall of the smoke hood (300), and the side of the right guide (200) facing away from the left guide (100) and the inner wall of the smoke hood (300) form a right cavity; An oil fume channel is formed between the left guide (100) and the right guide (200), and the oil fume channel is not connected to the left cavity and the right cavity.

5. The smoke collection device according to claim 4, characterized in that, The smoke hood (300) includes a back plate (310), a top plate (320), and a front plate (330) connected from end to end; The front of the left guide (100) and the front of the right guide (200) are both connected to the front panel (330); the top of the left guide (100) and the top of the right guide (200) are both connected to the top plate (320); and the back of the left guide (100) and the back of the right guide (200) are both connected to the back plate (310).

6. The smoke collection device according to claim 5, characterized in that, A baffle (510) for opening and closing the smoke inlet is rotatably connected to the smoke collection hood (300); The smoke collection device further includes a drive member (520) with one end connected to the smoke collection hood (300) and the other end connected to the baffle (510). A portion of the drive member (520) is located in the left cavity and / or the right cavity and is connected to the smoke collection hood (300). Another portion of the drive member (520) passes through the front panel (330) and is connected to the baffle (510).

7. The smoke collection device according to claim 5, characterized in that, The top plate (320) has a left connecting plate surface (610) and a right connecting plate surface (620) corresponding to the left cavity and the right cavity respectively, and both the left connecting plate surface (610) and the right connecting plate surface (620) are provided with assembly holes; The smoke collection device further includes a left cover plate (630) and a right cover plate (640). The left cover plate (630) is used to connect with the smoke collection hood (300) and covers the upper part of the left connecting plate (610) to seal the upper part of the left cavity. The right cover plate (640) is used to connect with the smoke collection hood (300) and covers the upper part of the right connecting plate (620) to seal the upper part of the right cavity.

8. The smoke collection device according to claim 5, characterized in that, The top plate (320) is parallel to the horizontal plane; the back plate (310) is parallel to the vertical plane; and the front plate (330) is inclined to the horizontal plane and the vertical plane respectively.

9. The smoke collection device according to claim 3, characterized in that, The front panel (330) of the smoke hood (300) has an inwardly recessed platform, and the bottom surface of the platform has a smoke inlet. The smoke collection device also includes an oil mesh, which is laid flat inside the settling platform and covers the smoke inlet.

10. A range hood, characterized in that, Includes the smoke collection device according to any one of claims 3-9.

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