A fume hood and integrated cooker

Abstract

The utility model discloses a fume collecting hood, including casing and the fender board subassembly of setting on the casing, the casing includes the backboard and front plate of front and back interval, two respectively located backboard and front plate both sides and with both corresponding one side close and connect's side column, fender board subassembly sets up the position on the casing is suitable for making it and two side columns and the top edge of front plate formed the fume inlet of casing, the backplate is configured to be set to the top end forward inclination from its bottom, is suitable for forming the oil fume guide surface at its front, is used for guiding the oil fume that by fume inlet horizontal flow into the casing and impact backplate gently and obliquely downward flow guiding. The utility model discloses still has the integrated stove with this fume collecting hood. The utility model has the beneficial effect that can reduce the turbulence caused by oil fume impact, and effectively improve the efficiency of oil fume suction.

Description

Technical Field

[0001] This utility model relates to a fume hood and an integrated stove, which is an optimized design to improve the efficiency of fume extraction. Background Technology

[0002] Integrated cooktops have various structural types of fume hoods. One type features a fume inlet on the front, with a baffle plate at the top to prevent fumes from escaping upwards. The fumes entering the inlet flow downwards. However, before flowing horizontally into the fume hood and downwards, the fumes impact the back panel, creating turbulence. This results in greater flow resistance, poor fume extraction, and increased noise. Utility Model Content

[0003] The purpose of this invention is to provide a fume hood and integrated stove that can reduce turbulence caused by oil fume impact and effectively improve the efficiency of oil fume extraction.

[0004] This utility model is achieved through the following technical solution.

[0005] A smoke hood includes a housing and a smoke baffle assembly disposed on the housing. The housing includes a back plate and a front plate spaced apart front and rear, and two side posts located on both sides of the back plate and the front plate respectively and enclosing and connecting to the corresponding sides of the two. The smoke baffle assembly is disposed on the housing in a position suitable for forming a smoke inlet of the housing with the two side posts and the top edge of the front plate. The back plate is configured to be inclined forward from its bottom end to its top end, suitable for forming a smoke guiding surface on its front side, for guiding the smoke that flows horizontally into the housing from the smoke inlet and impacts the back plate to flow downward gently and obliquely.

[0006] As a further improvement of this utility model, the two sides of the smoke baffle assembly are respectively fixedly connected to the corresponding two side posts, and the smoke baffle assembly has a rear edge plate fixedly connected to the back plate.

[0007] As a further improvement of this utility model, the part of the back plate corresponding to the rear edge plate has at least one protrusion forming a protrusion towards the rear edge plate. The rear edge plate is vertically arranged, and the part corresponding to the protrusion has a positioning groove that allows the protrusion to be inserted. The protrusion and the positioning groove are tightened and fixedly connected by at least one fastener.

[0008] As a further improvement of this utility model, when the convex bulge and the positioning groove are not fixedly connected by fasteners, the end of the convex bulge away from the back plate at least partially abuts against the bottom surface of the positioning groove.

[0009] As a further improvement of this utility model, the diameter of the convex bulge gradually decreases from the root on the back plate to the end away from the back plate.

[0010] As a further improvement of this utility model, at least one auxiliary purification chamber is provided on the bottom surface of the smoke baffle assembly. The bottom of the purification chamber has an opening that allows oil fumes to flow in and out. Furthermore, a purification layer for purifying oil fumes is arranged inside the purification chamber.

[0011] As a further improvement of this utility model, the purification layer is set as an activated carbon purification layer.

[0012] As a further improvement of this utility model, the outer wall of the purification chamber bulges from its periphery to the center, and an opening is provided at the highest point of the bulge. The bulging outer wall of the purification chamber forms a smoke guiding surface for guiding oil fumes into the opening.

[0013] As a further improvement of this utility model, the included angle between the back plate and the horizontal plane is 75°-88°.

[0014] An integrated stove, including a smoke collection hood.

[0015] The beneficial effects of this utility model are:

[0016] By designing the back panel of the fume hood to slope forward from bottom to top, a fume guiding surface is formed. This causes the horizontally entering fumes to flow downwards after impacting the back panel, effectively reducing turbulence and flow resistance, and significantly improving fume extraction efficiency. Simultaneously, the inclined guiding flow reduces airflow collisions and lowers operating noise. The rear edge plate is connected to the back panel via a convex-positioning groove structure. The convex end pre-abuts the bottom of the groove for quick positioning, ensuring a tight fit after fasteners are tightened. This solves the assembly problem between non-parallel plates, enhancing connection reliability and sealing. The auxiliary purification chamber is located at the bottom of the baffle plate. Its raised outer wall forms a fume guiding surface, directing the fume flow to the highest opening. The purification layer inside the chamber pre-filters the incoming fumes, reducing pollutants entering the main flue and further reducing noise. By integrating the above structures, the integrated stove achieves multiple optimizations: efficient fume guidance, low-noise operation, and pre-purification. Attached Figure Description

[0017] The preferred embodiments of this utility model will be described in detail below with reference to the accompanying drawings to help understand the purpose and advantages of this utility model, wherein:

[0018] Figure 1 This is a schematic diagram of the smoke hood structure;

[0019] Figure 2 This is a structural diagram of the back panel and side columns;

[0020] Figure 3 This is a partial cross-sectional schematic diagram of the back panel and the rear edge panel;

[0021] Figure 4 This is a structural schematic diagram of the smoke baffle assembly;

[0022] Figure 5 This is a cross-sectional view of the back panel. Detailed Implementation

[0023] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0024] The directional terms such as up, down, left, right, front, back, front, back, top, and bottom mentioned or possibly used in this specification are defined relative to the construction shown in the accompanying drawings. The terms "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively. These are relative concepts and may therefore vary depending on their location and usage. Therefore, these or other directional terms should not be interpreted as restrictive.

[0025] Implementation method 1:

[0026] This embodiment illustrates a fume hood that can improve the fume extraction effect, referring to... Figures 1-5 The device includes a housing 1 and a smoke baffle assembly 2 mounted on the housing 1. The housing 1 is composed of a back plate 11 and a front plate 12 spaced apart from each other. Two side pillars 13 are located on the sides of the back plate 11 and the front plate 12, respectively, and are connected to each other to form a closed structure. The smoke baffle assembly 2 is positioned on the housing 1 in an optimized manner, so that it, together with the two side pillars 13 and the top edge of the front plate 12, forms the smoke inlet h of the housing 1. The back plate 11 is specially configured to be inclined forward from its bottom to its top, so that a smooth oil fume guiding surface r is formed on the front of the back plate 11. This guiding surface can effectively capture the oil fume flow that flows horizontally into the housing 1 from the smoke inlet h, and guide the oil fume to flow downward gently and obliquely when it impacts the back plate 11, avoiding the formation of sharp collision points. Due to this structural design, after the fumes enter through the inlet h, the impact force on the back plate 11 is reduced, and the fumes naturally flow downwards along the inclined guide surface. This significantly reduces turbulence and vortex phenomena caused by high-speed impact, reduces the resistance to the flow of fumes, and allows the fumes to be sucked in and discharged more smoothly, improving the overall fume extraction efficiency. At the same time, the smooth flow of fumes reduces hydrodynamic noise and reduces the howling or vibration noise caused by turbulent fumes during cooking, making the fume hood quieter and more comfortable to operate, especially suitable for noise-sensitive environments such as home kitchens.

[0027] In this embodiment, for the sake of secure connection, the two sides of the smoke baffle assembly 2 are fixedly connected to the corresponding two side posts 13 by fasteners (such as screws or bolts). The structure of the smoke baffle assembly 2 also includes a rear edge plate 21 fixedly connected to the back plate 11. The rear edge plate 21 is integrally formed or welded to the smoke baffle body to ensure overall rigidity and stability. Through this fixing method, the smoke baffle assembly 2 is not only firmly anchored to the side posts 13, but also connected to the back plate 11 through the rear edge plate 21, thereby dispersing the mechanical stress caused by the impact of oil fumes, enhancing the vibration resistance and durability of the entire smoke hood, preventing loosening or deformation caused by vibration during long-term use, ensuring that the smoke inlet h structure is always in the best working condition, and improving the user's safety and reliability.

[0028] In this embodiment, in order to further improve the reliability and assembly accuracy of the connection between the back plate 11 and the rear edge plate 21, the back plate 11 has at least one protrusion b1 that protrudes towards the rear edge plate 21 at the corresponding part. The protrusion b1 can be made by stamping process, and the protrusion height is designed according to the connection strength requirements. The rear edge plate 21 is configured to be vertically arranged, and a positioning groove b2 that allows the protrusion b1 to be inserted is machined at the corresponding part. The protrusion b1 and the positioning groove b2 are tightened and fixedly connected by at least one fastener (such as a bolt) to form a mechanical interlocking structure. Because the back plate 11 is tilted while the rear edge plate 21 of the smoke baffle assembly 2 remains vertical, a non-parallel angle is formed between them. This mechanism of the convex hull b1 inserting into the positioning groove b2 provides initial positioning before fastening. The tension applied by the fastener overcomes the assembly challenge caused by the angle difference, ensuring the high tensile and shear strength of the connection point and avoiding displacement caused by thermal expansion and contraction or impact. This greatly improves the firmness, reliability and service life of the connection, especially maintaining connection stability in the high-frequency vibration oil fume environment.

[0029] In this embodiment, based on optimizations in assembly convenience and pre-positioning, when the convex bulge b1 and the positioning groove b2 are not fixedly connected by fasteners, the end of the convex bulge b1 away from the back plate 11 at least partially abuts against the bottom surface of the positioning groove b2. This pre-contact design plays an initial positioning role during assembly, allowing operators to quickly align the convex bulge b1 and the positioning groove b2, reducing assembly time and tool requirements. At the same time, the abutting state limits the risk of component wobbling before fastening, avoids misalignment or skew, ensures uniform force distribution of subsequent fasteners, improves assembly efficiency and connection quality, and reduces the defect rate in the production process.

[0030] In this embodiment, to optimize the fitting accuracy and connection efficiency of the convex bulge b1 and the positioning groove b2, the diameter of the convex bulge b1 gradually decreases from its root on the back plate 11 to its end away from the back plate 11, forming a tapered structure. The root diameter is larger to provide strength support, while the end diameter is smaller to facilitate insertion into the positioning groove b2. This tapered design allows the convex bulge b1 to easily slide into the positioning groove b2 during assembly, reducing frictional resistance and jamming. At the same time, the tapered structure generates a self-centering effect during fastener tightening, automatically correcting minor deviations and ensuring a perfect fit between the convex bulge b1 and the positioning groove b2. This enhances the sealing and anti-loosening capabilities of the connection, especially maintaining connection stability under dynamic loads and improving overall structural performance.

[0031] In this embodiment, to further improve the oil fume purification effect and noise control, at least one auxiliary purification chamber 3 is provided on the bottom surface of the smoke baffle assembly 2. The auxiliary purification chamber 3 is fixed to the bottom of the smoke baffle by stamping or welding. The bottom of the auxiliary purification chamber 3 has an opening 31 that allows oil fumes to flow in and out. The size of the opening 31 is designed according to the oil fume flow rate. A purification layer for purifying oil fumes is arranged inside the auxiliary purification chamber 3, and the purification layer fills the cavity to form a filter channel. With this arrangement, some oil fumes will flow into the auxiliary purification chamber 3 through the opening 31 before entering the housing 1 through the smoke inlet h. After being adsorbed and filtered by the purification layer, they will flow out through the opening 31, achieving preliminary purification of oil fumes and reducing the entry of oil particles and harmful substances into the main housing 1. At the same time, the purification layer (such as a porous material) absorbs sound wave energy when the airflow passes through, reducing high-frequency noise in the flow of oil fumes, making the smoke collection hood operate more quietly, reducing the burden on the subsequent purification system, and improving the overall environmental performance.

[0032] In this embodiment, based on the optimization of purification effect and material selection, the purification layer is set as an activated carbon purification layer. The activated carbon is filled in the auxiliary purification chamber 3 in the form of granules or honeycomb, and has high specific surface area and strong adsorption properties. The porous structure of activated carbon can effectively capture grease, odor molecules and volatile organic compounds in oil fumes, improving purification efficiency; at the same time, its chemical stability ensures long-term operation in high-temperature oil fume environments, extending the maintenance cycle of the auxiliary purification chamber 3 and providing users with a healthier cooking environment.

[0033] In this embodiment, to promote the active inflow of oil fumes into the auxiliary purification chamber 3 and improve purification efficiency, the outer wall of the auxiliary purification chamber 3 bulges from its periphery to the center, forming a smooth curved surface. An opening 31 is provided at the highest point of the bulge. The bulging outer wall of the auxiliary purification chamber 3 forms a smoke guiding surface 3a for guiding oil fumes into the opening 31. The smoke guiding surface 3a adopts a streamlined design. When oil fumes flow past the bottom of the baffle plate, the smoke guiding surface 3a naturally guides the airflow to the opening 31 at the highest point of the bulge. This bulging structure utilizes the convergence effect of fluid dynamics to increase the speed and amount of oil fumes entering the chamber, reducing oil fume dispersion. At the same time, the opening 31, located at the highest point, avoids oil accumulation, ensuring the long-term efficient operation of the auxiliary purification chamber 3 and improving the utilization rate of the purification layer.

[0034] In this embodiment, based on the refined optimization of the fume diversion effect, the angle between the back panel 11 and the horizontal plane is adjustable within the range of 75°-88°, with the optimal angle being 86°. This angle was determined through experiments or simulations, and the precise angle setting can be achieved by adjusting the bracket during installation of the back panel 11. The optimal angle of 86° achieves the best balance in reducing turbulence and resistance, ensuring that the incident angle of the fume impacting the back panel 11 facilitates smooth downward diversion, avoiding flow separation or energy loss caused by excessively large or small angles, thus maximizing the fume extraction efficiency and noise reduction effect. At the same time, this angle range adapts to different kitchen space layouts, taking into account both structural compactness and performance stability.

[0035] Implementation Method 2:

[0036] This embodiment illustrates an integrated cooktop package, which includes the fume hood shown in Embodiment 1. This fume hood, as a core component, is integrated with the cooktop, fan, and other components to form an integrated cooktop. By integrating all the technical features of the aforementioned fume hood, this integrated cooktop possesses functions such as reduced turbulence, improved fume extraction, reduced noise, enhanced connectivity, and optimized purification. It achieves efficient fume treatment and overall operational reliability, improving the user's cooking experience and environmental performance.

[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent substitutions for some of the technical features. 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 smoke collection hood, characterized in that, The device includes a housing (1) and a smoke baffle assembly (2) disposed on the housing (1). The housing (1) includes a back plate (11) and a front plate (12) spaced apart front and rear, and two side posts (13) located on both sides of the back plate (11) and the front plate (12) respectively and enclosing and connecting the corresponding sides of the two. The smoke baffle assembly (2) is disposed on the housing (1) in a position suitable for forming the smoke inlet (h) of the housing (1) with the top edge of the two side posts (13) and the front plate (12). The back plate (11) is configured to be inclined forward from its bottom end to its top end, and is suitable to form a smoke guiding surface (r) on its front side for guiding the smoke that flows horizontally into the housing (1) from the smoke inlet (h) and impacts the back plate (11) to flow smoothly and obliquely downward.

2. The smoke collection hood according to claim 1, characterized in that, The smoke baffle assembly (2) is fixedly connected to the two corresponding side posts (13) on both sides, and the smoke baffle assembly (2) has a rear edge plate (21) fixedly connected to the back plate (11).

3. The smoke collection hood according to claim 2, characterized in that, The back plate (11) has at least one protrusion (b1) that protrudes toward the rear edge plate (21) at the part corresponding to the rear edge plate (21). The rear edge plate (21) is vertically arranged and has a positioning groove (b2) at the part corresponding to the protrusion (b1) that allows the protrusion (b1) to be inserted. The protrusion (b1) and the positioning groove (b2) are tightened and fixedly connected by at least one fastener.

4. The smoke collection hood according to claim 3, characterized in that, When the convex bulge (b1) and the positioning groove (b2) are not fixedly connected by fasteners, the end of the convex bulge (b1) away from the back plate (11) at least partially abuts against the bottom surface of the positioning groove (b2).

5. The smoke collection hood according to claim 3, characterized in that, The diameter of the convex bulge (b1) gradually decreases from the root located on the back plate (11) to the end away from the back plate (11).

6. The smoke collection hood according to claim 1, characterized in that, At least one auxiliary purification chamber (3) is provided on the bottom surface of the smoke baffle assembly (2). The bottom of the auxiliary purification chamber (3) has an opening (31) that allows oil fumes to flow in and out. Furthermore, a purification layer for purifying oil fumes is arranged inside the auxiliary purification chamber (3).

7. The smoke collection hood according to claim 6, characterized in that, The purification layer is set as an activated carbon purification layer.

8. The smoke collection hood according to claim 6, characterized in that, The outer wall of the auxiliary purification chamber (3) rises from its periphery to its center, and the opening (31) is provided at the highest point of the rise. The raised outer wall of the auxiliary purification chamber (3) forms a smoke guiding surface (3a) for guiding oil fumes into the opening (31).

9. The smoke hood according to any one of claims 1-8, characterized in that, The angle between the back plate (11) and the horizontal plane is 75°-88°.

10. An integrated stove, characterized in that, Includes the smoke hood as described in any one of claims 1-9.

Images