Range hood

Abstract

The utility model discloses a range hood, include: range hood main part, range hood main part has the inner wind box of suction panel and the inboard of suction panel, and the suction panel is set up with the air inlet, and the inner wind box is equipped with the smoke collecting cavity and the overflow port, and the overflow port communicates the smoke collecting cavity with the air inlet, the air inlet and the overflow port are narrow and long, and the overflow port sets up around the air inlet to avoid the air inlet, the side of overflow port is equipped with the flow -guiding spare, and the flow -guiding spare sets up around the overflow port, and the flow -guiding spare is used for guiding the wind and / or guiding the oil. The utility model discloses a range hood solves the problem that the flow -guiding spare, suction panel and inner wind box three assembly difficulties are big and the assembly process is complicated in traditional range hood. Through the flow -guiding spare is directly set up in the side of overflow port, and makes it set up around the overflow port, has realized the integration design of flow -guiding spare and inner wind box. This design has simplified the assembly process, has reduced the number of independent parts, and has reduced the assembly difficulty.

Description

Technical Field

[0001] This utility model relates to the field of smoke hood technology, and in particular to a smoke hood. Background Technology

[0002] In existing technology, the range hood's air intake panel has an air intake, and the edge of the air intake has a guide component for guiding oil or airflow, such as... Figure 1 and Figure 2 As shown, the air guide is usually machined separately and then connected to the air intake panel, which makes the assembly of the air guide, air intake panel and inner air box more difficult and the assembly process more complicated. Utility Model Content

[0003] The main purpose of this utility model is to propose a smoke hood that aims to solve the above-mentioned technical problems.

[0004] To achieve the above objectives, the smoke hood proposed in this utility model includes: The main body of the range hood has an air intake panel and an inner air box located inside the air intake panel. The air intake panel has an air intake port, and the inner air box has a smoke collection chamber and an outlet. The outlet connects the smoke collection chamber to the air intake port. The air intake and the flow outlet are narrow and long. The flow outlet is arranged around the air intake to avoid it. A guide is provided on the side of the flow outlet, which is arranged around the flow outlet. The guide is used to guide air and / or oil.

[0005] According to one embodiment of the present invention, the guide member includes an oil-blocking part, which is connected to the side of the flow port and surrounds the air intake. The oil-blocking part is formed into a constricted shape that gradually narrows from the side close to the air intake panel to the side away from the air intake panel.

[0006] According to one embodiment of the present invention, the edge of the air intake is provided with a flange, the flange is located on the inner side of the air intake panel, the flange is arranged around the air intake, and the flange forms a tapered shape that gradually narrows from the side close to the air intake panel to the side away from the air intake panel. An oil guide groove is formed between the oil blocking part and the flange, and the oil guide groove is arranged around the air intake.

[0007] According to one embodiment of the present invention, the oil baffle is provided with an oil guide hole, which is connected to the oil guide groove to allow the oil in the oil guide groove to flow out.

[0008] According to one embodiment of the present invention, the main body of the range hood is provided with an oil dripping hole, through which the oil in the smoke collection chamber is discharged. The oil dripping hole is located on the rear side of the air intake, and an oil guide hole is provided on the oil-blocking part located between the air intake and the oil dripping hole.

[0009] According to one embodiment of the present invention, the suction panel is inclined downward from front to back, the position of the oil drip hole is lower than the position of the oil guide hole, and the rear part of the oil guide groove is lower than the front part of the oil guide groove.

[0010] According to one embodiment of the present invention, the guide member further includes an air guide portion, which is connected to at least one side of the oil baffle portion away from the air intake panel, and the air guide portion extends obliquely in a direction away from the air intake.

[0011] According to one embodiment of the present invention, the two long sides of the oil baffle away from the suction panel are connected to air guides, and the edges of the air guides on both sides away from the suction panel are far apart to form an flared shape.

[0012] According to one embodiment of the present invention, the guide member further includes an extension portion, which is connected to the side of each air guide portion away from the oil baffle portion, and the extension portions on both sides extend in a direction away from each other.

[0013] According to one embodiment of the present invention, the oil baffle, the air guide, the extension and the inner air box are integrally formed.

[0014] This utility model of a range hood solves the problem of difficult and cumbersome assembly of the air guide, suction panel, and inner air box in traditional range hoods. By directly placing the air guide on the side of the inlet and making it bypass the inlet, an integrated design of the air guide and inner air box is achieved. This design significantly simplifies the assembly process, reduces the number of independent parts, and lowers the assembly difficulty. At the same time, since the air guide is part of the inner air box structure, the stability and sealing of the overall structure are improved, reducing the risk of oil fume escape. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0016] Figure 1 This is a cross-sectional view of the structure of a smoke machine in the prior art; Figure 2 This is a schematic diagram of the structure of a flow guide in the prior art; Figure 3 This is a schematic diagram of the structure of the smoke hood of this utility model; Figure 4 This is a cross-sectional view of the structure of the smoke machine of this utility model; Figure 5 for Figure 4 A magnified view of a portion of point A in the middle.

[0017] Explanation of icon numbers: The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0020] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text is to include three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution that simultaneously satisfies A and B. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0021] This utility model proposes a smoke hood.

[0022] In the embodiments of this utility model, such as Figures 3 to 5 As shown, the range hood includes: a range hood body 10, the range hood body 10 having an air intake panel 11 and an inner air box 12 located inside the air intake panel 11, the air intake panel 11 having an air intake 111, the inner air box 12 having a smoke collection chamber 121 and an outlet, the outlet connecting the smoke collection chamber 121 to the air intake 111; the air intake 111 and the outlet are narrow and long, the outlet is arranged around the air intake 111 to avoid the air intake 111; a guide 20 is provided on the side of the outlet, the guide 20 is arranged around the outlet, and the guide 20 is used for guiding air and / or guiding oil.

[0023] In this embodiment, the main body 10 of the range hood integrates an air intake panel 11 and an inner air box 12 to form an overall frame. The air intake panel 11 refers to the panel component located on the front side of the main body 10 of the range hood. Specifically, it can be a metal plate with a stamped air intake 111. The air intake panel 11 serves as the carrier for the airflow inlet, and its inner side is directly connected to the inner air box 12, avoiding the need for additional installation structures. The inner air box 12 refers to the guide box located inside the air intake panel 11. Specifically, it can be connected to the air intake panel 11 by welding or fasteners. The inner air box 12 forms a continuous airflow channel through the smoke collection chamber 121 and the flow outlet, achieving physical integration with the air intake panel 11. The air intake 111 refers to the air inlet opened on the air intake panel 11. Specifically, it can be a rectangular or elliptical narrow and elongated hole structure. The narrow and elongated shape of the air intake 111 ensures the smoke extraction area. The flow passage refers to the opening on the inner air box 12 that connects to the air intake 111. Specifically, it can be an annular gap surrounding the edge of the air intake 111. The flow passage, through its surrounding layout, avoids the main area of ​​the air intake 111, providing side installation space for the guide component 20. The guide component 20 refers to the flow guiding structure set on the side of the flow passage. Specifically, it can be a bent metal plate or an injection molded part. The guide component 20 is directly fixed to the side of the inner air box 12 by bypassing the flow passage, without the need for a separate connection to the air intake panel 11, thus reducing assembly steps.

[0024] By coordinating the spatial layout of the air intake 111 and the flow outlet, the guide component 20 is integrated into the side of the inner air box 12. Utilizing the surrounding avoidance design of the flow outlet, the installation position of the guide component 20 is moved from the air intake panel 11 to the side of the flow outlet of the inner air box 12, realizing the integrated assembly of the guide component 20 and the inner air box 12. This eliminates the multiple assembly steps required in the traditional solution where the guide component 20 needs to be connected to both the air intake panel 11 and the inner air box 12.

[0025] The flow outlet is arranged around the air intake 111, a layout that allows the flow outlet to avoid the air intake 111, reserving space for the installation of the guide component 20. The guide component 20 is directly set on the side of the flow outlet and arranged circumferentially around the outlet. The main function of the guide component 20 is to guide air and / or oil, improving the working efficiency of the range hood by changing the airflow direction or guiding the oil flow. The surrounding design of the flow outlet provides a continuous mounting base for the guide component 20, allowing it to be seamlessly set around the air intake 111. This not only simplifies the installation of the guide component 20 but also ensures the continuity and uniformity of the guiding function. In the prior art, the guide component 20 usually needs to be processed separately before being matched with the air intake panel 11, while in this embodiment, the guide component 20 is directly set on the side of the flow outlet, using the structure of the inner air box 12 as the mounting carrier. This integrated design significantly simplifies the assembly process and reduces the number of independent parts.

[0026] During operation, the oily fumes first flow through the air intake 111 and the outlet, and then are guided into the smoke collection chamber 121 by the guide member 20. At the same time, the oil flows along a specific path under the guidance of the guide member 20, preventing oil from accumulating in improper locations or flowing back.

[0027] Through the above solution, this application solves the problem of high assembly difficulty and cumbersome assembly process of the three components—the guide vane 20, the suction panel 11, and the inner air box 12—in traditional range hoods. By directly placing the guide vane 20 on the side of the inlet and making it bypass the inlet, an integrated design of the guide vane 20 and the inner air box 12 is achieved. This design significantly simplifies the assembly process, reduces the number of independent parts, and lowers the assembly difficulty. At the same time, since the guide vane 20 becomes part of the structure of the inner air box 12, the stability and sealing of the overall structure are improved, reducing the risk of oil fume escape.

[0028] The smoke hood of this utility model, such as Figure 4 and Figure 5 As shown, the flow guide 20 includes an oil-blocking portion 21, which is connected to the side of the flow port and surrounds the air intake 111. The oil-blocking portion 21 forms a constricted shape that gradually narrows from the side near the air intake panel 11 to the side away from the air intake panel 11. The oil-blocking portion 21 can be made of metal and has a trumpet-shaped cross-section, with a larger opening on the side near the air intake panel 11 and a smaller opening on the side away from the air intake panel 11. The oil-blocking portion 21 is connected to the side of the flow port by continuous welding or integral stamping. When the oil-blocking portion 21 forms a continuous closed structure around the air intake 111, its conical surface can guide the oil to slide down the slope to the vicinity of the flow guide 20.

[0029] By setting the oil-blocking part 21 and connecting it to the side of the flow port, oil leakage from the gap between the air intake 111 and the flow port can be effectively prevented. The oil-blocking part 21 is arranged around the air intake 111, forming a closed oil guiding channel to prevent oil from splashing everywhere. The tapered shape design of the oil-blocking part 21 can guide the oil to flow in a specific direction, reducing the adhesion and retention of oil on the surface of the oil-blocking part 21. At the same time, the oil-blocking part 21 is directly connected to the side of the flow port, reducing the adjustment requirements during assembly through structural integration, simplifying the fitting process between the guide component 20 and the inner air box 12, and improving assembly efficiency. In addition, the tapered structure also enhances the constraint effect of the oil-blocking part 21 on the airflow, making the flow rate of oil fumes more uniform when entering the smoke collection chamber 121, and improving the smoke collection efficiency.

[0030] The smoke hood of this utility model, such as Figure 4 and Figure 5As shown, the edge of the air intake 111 is provided with a flange 112. The flange 112 is located on the inner side of the air intake panel 11 and is arranged around the air intake 111. The flange 112 forms a tapered shape that gradually narrows from the side close to the air intake panel 11 to the side away from the air intake panel 11. An oil guide groove 113 is formed between the oil baffle 21 and the flange 112 and is arranged around the air intake 111.

[0031] The flange 112 can be made of metal and processed by stamping. The height of the flange 112 can be adjusted according to actual needs. The flange 112 forms a gradually narrowing opening through a continuous structure surrounding the air intake 111, and the gap between the oil baffle 21 and the flange 112 forms a continuous oil guiding path, allowing oil to flow into the oil guiding groove 113 along the narrowing slope of the flange 112.

[0032] The oil guide groove 113 formed by the flange 112 and the oil-blocking part 21 provides an effective collection channel for oil, preventing oil from dripping directly onto the air intake 111. The constricted shape of the flange 112 guides the oil to flow into the oil guide groove 113, preventing oil from adhering to the edge of the air intake 111. The surrounding oil guide groove 113 ensures that oil can be collected from all directions, preventing oil from stagnating in local areas. This structural design improves the oil collection efficiency, reduces the risk of oil dripping out of the air intake 111, thereby improving the user experience and cleaning and maintenance of the range hood.

[0033] If the oil in the oil guide groove 113 cannot be drained in time, it will accumulate in the oil guide groove 113, affecting the cleanliness of the inside of the range hood and increasing the difficulty of maintenance.

[0034] The smoke hood of this utility model, such as Figure 4 and Figure 5 As shown, the oil-blocking part 21 has an oil guide hole 211, which communicates with the oil guide groove 113 to allow oil in the oil guide groove 113 to flow out. The communication between the oil guide hole 211 and the oil guide groove 113 can be a through hole directly penetrating the oil-blocking part 21, or it can guide the oil to flow to a specific area through an inclined channel. The number and distribution density of the oil guide holes 211 can be adjusted according to the volume of the oil guide groove 113 and the oil flow rate, for example, by increasing the density of the oil guide holes 211 in the low-lying areas of the oil guide groove 113.

[0035] As the oil flows within the oil guide groove 113, it converges towards lower areas due to gravity and is discharged into the smoke collection chamber 121 through the oil guide hole 211. The oil guide hole 211 ensures that the oil in the oil guide groove 113 can be discharged in a timely manner, preventing the oil from remaining in the oil guide groove 113 for an extended period. This design not only improves the cleanliness of the range hood but also reduces maintenance difficulty.

[0036] The smoke hood of this utility model, such as Figure 4 and Figure 5As shown, the main body 10 of the range hood is provided with an oil drip hole, and the oil in the smoke collection chamber 121 is discharged through the oil drip hole. The oil drip hole is located on the rear side of the air intake 111, and an oil guide hole 211 is provided on the oil blocking part 21 located between the air intake 111 and the oil drip hole.

[0037] When the oil enters the oil guide groove 113, it flows backward along the groove under the action of gravity and flows out through the oil guide hole 211 in the oil blocking part 21. Since the oil drip hole is located behind the air intake 111 and is lower than the oil guide hole 211, the oil flows directly into the flow path of the oil drip hole after being discharged from the oil guide hole 211, and will not stagnate on the surface of the oil blocking part 21. A directional flow channel is formed inside the main body 10 of the range hood, from the oil guide groove 113 to the oil guide hole 211, and then to the oil drip hole.

[0038] The above technical solution optimizes the discharge path of oil from the oil guide groove 113 to the smoke collection chamber 121. The design of the oil drip hole located behind the air intake 111 allows the oil to flow naturally towards it under gravity. The oil guide hole 211 is positioned on the oil-blocking part 21 between the air intake 111 and the oil drip hole, ensuring that the oil in the oil guide groove 113 flows directly into the oil drip hole after passing through the oil guide hole 211, preventing oil from stagnating or flowing back on the surface of the oil-blocking part 21. This layout forms a unidirectional flow channel from the oil guide groove 113 to the oil guide hole 211, and then out through the oil drip hole, solving the problem of secondary oil accumulation and reducing the difficulty of cleaning and maintaining the inside of the range hood.

[0039] The smoke hood of this utility model, such as Figure 4 and Figure 5 As shown, the suction panel 11 is inclined downward from front to back, the position of the oil drip hole is lower than the position of the oil guide hole 211, and the rear part of the oil guide groove 113 is lower than the front part of the oil guide groove 113.

[0040] The downward tilt of the suction panel 11 from front to back causes the oil to be subjected to a double gravitational force within the oil guide groove 113: on the one hand, the overall tilt of the suction panel 11 causes the oil to flow backward along the panel surface; on the other hand, the rear part of the oil guide groove 113 is lower than the front part, creating a height difference within the groove, which further pushes the oil towards the dripping hole. Because the rear part of the groove is at a lower position, the oil automatically gathers towards the rear under gravity and flows out of the oil guide groove 113 through the oil guide hole 211. Since the dripping hole is lower than the oil guide hole 211, after flowing out of the oil guide hole 211, the oil can continue to flow towards the dripping hole under gravity, and finally be discharged from the smoke collection chamber 121 through the dripping hole.

[0041] By utilizing the inclined design of the suction panel 11 and the height difference of the oil guide groove 113, the flow of oil from the oil guide hole 211 to the oil drip hole is promoted. This prevents oil from stagnating in the oil guide groove 113, improving oil discharge efficiency. Furthermore, this design simplifies the oil discharge path, reduces oil accumulation, helps maintain the cleanliness of the range hood's interior, and lowers maintenance difficulty.

[0042] The smoke hood of this utility model, such as Figure 4 and Figure 5 As shown, the guide member 20 also includes an air guide section 22, which is connected to at least one side of the oil baffle 21 away from the suction panel 11, and the air guide section 22 extends obliquely in a direction away from the suction port 111.

[0043] The air guide section 22 can be connected to a single long side or two long sides of the oil baffle section 21 away from the suction panel 11, and the tilt angle relative to the plane direction of the suction panel 11 can be 30° to 60°. When the air guide section 22 is provided on both sides, the tilt directions of the air guide sections 22 on both sides can be symmetrically distributed to form an outwardly expanding guide surface.

[0044] During the operation of the range hood, the airflow entering the inlet is first guided by the oil-blocking part 21 to form a gradually narrowing flow path, and then contacts the inclined surface of the air guide part 22. The air guide part 22 changes the direction of airflow through its inclined extension structure, causing the airflow to diffuse outward along the surface of the air guide part 22.

[0045] By adding a guide section 22 to the oil-blocking section 21, the airflow path is optimized. The guide section 22 is connected to the side of the oil-blocking section 21 away from the suction panel 11. Its inclined extension structure forms an angle with the suction port 111, which can guide the airflow entering the outlet outward, avoiding the airflow directly impacting the suction port 111 and causing turbulence. The setting of the guide section 22 expands the functional range of the guide member 20, allowing the airflow to diffuse smoothly along the inclined guide section 22, improving the airflow stability in the smoke collection chamber 121. The shape of the guide section 22 extending away from the suction port 111 reduces the possibility of airflow swirling and enhances the overall airflow efficiency of the range hood. This design retains the oil-blocking function of the oil-blocking section 21 while improving airflow, thereby improving the smoke extraction efficiency of the range hood.

[0046] The smoke hood of this utility model, such as Figure 4 and Figure 5 As shown, the oil baffle 21 has air guides 22 connected to the two long sides away from the suction panel 11. The air guides 22 on both sides are far apart from the edges of the suction panel 11 to form an flared shape.

[0047] When the air guide section 22 is positioned on both sides of the oil-blocking section 21, the inclined air guide section 22 forms a funnel-shaped flow channel, evenly dispersing the airflow originally concentrated in front of the air intake 111 to the lateral areas. This diffusion effect reduces the velocity gradient of the airflow near the air intake 111, making the pressure distribution within the smoke collection chamber 121 more uniform. The combined structure of the air guide section 22 and the oil-blocking section 21 maintains the oil flow guiding function while allowing for controllable deflection of the airflow direction, effectively preventing vortex phenomena generated at the edge of the air intake 111. The inclined extended air guide section 22 also increases the effective guiding area of ​​the airflow, allowing more peripheral air to be orderly introduced into the smoke collection chamber 121, improving the overall smoke extraction efficiency.

[0048] The smoke hood of this utility model, such as Figure 4 and Figure 5 As shown, the guide member 20 also includes an extension 23, which is connected to the side of each air guide 22 away from the oil baffle 21, and the extensions 23 on both sides extend in a direction away from each other.

[0049] A continuous transition structure is formed between the extension 23 and the guide section 22. The extension direction of the extension 23 forms an angle with the tilt direction of the guide section 22. The two extension sections 23 extend horizontally in directions away from each other, further expanding the airflow path outward from the flared opening. As the airflow diffuses outward through the guide section 22, the extension section 23 continues to guide the airflow along its extension direction. Because the two extension sections 23 extend in directions away from each other, the diffusion path of the airflow is lengthened. The expansion angle of the extension section 23 causes secondary diffusion of the airflow, effectively reducing the local velocity peak.

[0050] Through the above technical solution, the airflow guidance range can be further expanded from the flared area of ​​the air guide section 22 to the outward expansion area of ​​the extension section 23, enhancing the uniformity of airflow diffusion in the direction away from the air intake 111 and avoiding turbulence caused by excessively high local flow velocities. The continuous extension structure of the extension section 23 and the air guide section 22 improves the deformation resistance of the guide member 20, ensuring a stable guiding shape under the impact of high-speed airflow, thereby optimizing the flow trajectory of oil fumes in the smoke collection chamber 121 and improving the adsorption efficiency of oil mist particles.

[0051] The smoke hood of this utility model, such as Figure 4 and Figure 5 As shown, the oil baffle 21, air guide 22, extension 23, and inner air box 12 are integrally formed. This reduces the processing steps and assembly steps of independent components, avoiding the risk of oil leakage at the joints. The integral forming process enhances the connection strength between the air guide 20 and the inner air box 12, preventing relative displacement under vibration conditions during the operation of the range hood, ensuring the alignment accuracy of the oil guide groove 113 and the oil guide hole 211, and extending the service life of the oil guiding system.

[0052] The above description is only an optional embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

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