Range hood

Abstract

The utility model provides a range hood and relates to the technical field of kitchen appliances. The range hood comprises the air inlet face and the side face, the side face is connected to the air inlet face and extends upwards from the air inlet face, the air inlet face and the side face are connected through the curved face with the continuous curvature, the side face is of a curved face structure with the continuous curvature, the phenomenon that vortexes are generated on the side face due to pressure sudden change is avoided, oil smoke escape is restrained, and the smoke suction efficiency of the range hood is improved. Meanwhile, the curved surface structure is smooth in surface, so that the range hood is less affected by airflow, and noise generated by vibration is reduced. The curved surface structure increases the strength and rigidity of the range hood, can also avoid the collision phenomenon, is beneficial to removal of adhered oil drops, is convenient to clean, increases the area of a smoke gathering cavity of the range hood and improves the smoke gathering amount of the range hood in unit time except for potential safety hazards, and cleaning dead corners are avoided. The curved surface structure is adopted, so that the convection heat exchange area between the outer surface of the range hood and the environment is increased, and the heat dissipation capability of the panel is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of kitchen appliances, in particular to a range hood. Background Art

[0002] At present, the sides and bottoms of range hoods on the market are usually connected at right angles, which will have a great impact on the airflow and the smoke extraction effect. At the right-angle turn, due to the discontinuous and large difference in curvature, a vortex will form on the side of the range hood, and the pressure at this place will be reduced.

[0003] The air inlet of the range hood is usually set at the bottom of the range hood. When a large amount of oil smoke rises to near the bottom of the range hood, the resistance becomes instantaneous. At this time, the pressure at the vortex formed is the smallest, and the surrounding airflow will flow towards the vortex. The oil smoke that should have been sucked into the range hood from the air inlet at the bottom will also flow towards the vortex, causing the oil smoke to escape. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a range hood to overcome the defect that the air inlet surface and the side surface of the range hood in the prior art are connected at right angles, which easily causes the escape of oil smoke.

[0005] The utility model solves the above technical problems through the following technical solutions:

[0006] The utility model provides a range hood, which comprises an air inlet surface and a side surface, wherein the side surface is connected to the air inlet surface and extends upward from the air inlet surface, the air inlet surface and the side surface are connected by a curved surface with continuous curvature, and the side surface is a curved surface structure with continuous curvature.

[0007] In this solution, the side and air inlet surface of the range hood are connected by a curved surface with continuous curvature. The side surface is a curved surface structure with continuous curvature. The airflow passing through the curved surface structure with continuous curvature will not rotate sharply to produce vortices. The pressure changes smoothly and the pressure gradient is small. The phenomenon of vortices produced on the side due to sudden pressure changes is avoided, the escape of oil smoke is suppressed, and the smoke extraction efficiency of the range hood is improved. At the same time, the surface of the curved structure is smooth, so that the range hood is less affected by the airflow and the noise caused by vibration is reduced. The curved structure increases the strength and rigidity of the range hood and can also avoid bumps. In addition to potential safety hazards, it avoids cleaning dead corners, is conducive to the removal of adhered oil droplets, is convenient for maintenance, increases the area of ​​the range hood's smoke collection cavity, and increases the amount of smoke collected by the range hood per unit time. The use of a curved structure will increase the convection heat exchange area between the outer surface of the range hood and the environment, and increase the heat dissipation capacity of the panel.

[0008] Preferably, the curvature of the side surface is continuous with the curvature of the curved surface between the air inlet surface and the side surface.

[0009] In this solution, the curvature of the side surface is continuous with the curvature of the curved surface between the air inlet surface and the side surface, so that the curved surface of the side surface and the curved surface between the side surface and the air inlet surface can form a curved surface with continuous curvature, making the outer surface of the range hood smoother, better avoiding the generation of vortices on the side of the range hood, better preventing the escape of oil smoke, and further improving the suction efficiency of the range hood. At the same time, the smoother outer surface makes the oil smoke less affected by the airflow, further reduces the vibration noise, and also makes the outer surface of the range hood more beautiful and easier to clean.

[0010] Preferably, the side surface comprises a first side surface along the length direction of the range hood and a second side surface along the width direction of the range hood, and the first side surface and the second side surface are connected by a curved surface with continuous curvature.

[0011] In the present solution, the first side surface and the second side surface are connected by a curved surface with continuous curvature, so that the connection between the sides of the range hood in different directions is smoother. The use of arc corners here can better prevent the escape of oil smoke, further reduce vibration noise, and avoid bumps by users at the connection between the first side surface and the second side surface, thereby improving the safety of the range hood. The outer surface of the range hood is also more beautiful and easier to clean.

[0012] Preferably, the curvature of the curved surface between the first side surface and the second side surface is continuous with the curvature of the curved surface between the air inlet surface and the side surface.

[0013] In this solution, the curvature of the curved surface between the first side surface and the second side surface is continuous with the curvature of the curved surface between the air inlet surface and the side surface, so that the connection between the side connection of the range hood and the air inlet surface is smoother, the effect of preventing oil smoke from escaping is better, and the suction efficiency of the range hood is further improved. At the same time, the smoother outer surface makes the oil smoke less affected by the airflow, further reduces the vibration noise, and also makes the outer surface of the range hood more beautiful and easier to clean.

[0014] Preferably, the range hood further comprises an upper surface, one end of the side surface away from the air inlet surface is connected to the upper surface, and the side surface and the upper surface are connected by a curved surface with continuous curvature.

[0015] In this solution, the side surface and the upper surface are connected by a curved surface with continuous curvature, which makes the outer surface of the range hood smoother and better prevents oil smoke from escaping, further improves the smoke extraction efficiency of the range hood, further reduces vibration noise, and avoids bumps by users at the connection between the side surface and the upper surface, thereby improving the safety of the range hood. The outer surface of the range hood is also more beautiful and easier to clean.

[0016] Preferably, the range hood comprises a fume hood and a curved hood body, the curved hood body is arranged outside the fume hood, and the air inlet surface and the side surface are arranged on the curved hood body;

[0017] Alternatively, the range hood comprises a fume collecting hood, and the air inlet surface and the side surface are arranged on the fume collecting hood.

[0018] In this solution, the air inlet surface and the side surface can be arranged on the curved cover body or on the fume hood, that is, the curved surface structure of the outer surface of the range hood can be structurally integrated with the fume hood, or can form a curved cover body separately and then be combined with the fume hood as an assembly. The curved surface structure is flexible in assembly, and being structurally integrated with the fume hood can save materials and reduce costs, and being combined with the fume hood as an assembly is convenient for assembly and later maintenance and replacement.

[0019] Preferably, the air inlet surface is sunken toward the interior of the range hood to form a groove, the groove comprises a side wall and a top wall, and the side wall and the top wall are connected by a curved surface with continuous curvature.

[0020] In this solution, the side wall and the top wall are connected by a curved surface with continuous curvature, making the connection between the side wall and the top wall smoother, which is more conducive to guiding the oil smoke into the air intake port, improving the oil smoke extraction effect of the range hood, and making the outer surface of the range hood more beautiful and easier to clean.

[0021] Preferably, the side wall comprises a first side wall along the length direction of the range hood and a second side wall along the width direction of the range hood, and the first side wall and the second side wall are connected by a curved surface with continuous curvature.

[0022] In this solution, the first side wall and the second side wall are connected by a curved surface with continuous curvature, which can make the connection between the side walls in different directions smoother, thereby making it more conducive to guiding the oil smoke into the air intake port, improving the oil smoke extraction effect of the range hood, and making the outer surface of the range hood more beautiful and easier to clean.

[0023] Preferably, the air inlet surface further includes an edge portion located at the periphery of the groove, and the edge portion is connected to the side wall of the groove by a curved surface with continuous curvature.

[0024] In this solution, the edge and the side wall of the groove are connected by a curved surface with continuous curvature, so that the edge and the side wall of the groove are smoother, so that the oil smoke rising from the bottom to the bottom plate can enter the groove more smoothly, and then be sucked into the interior of the range hood by the air intake port, which has a better effect of preventing oil smoke from escaping and further improves the extraction efficiency of the range hood. At the same time, the smoother outer surface makes the oil smoke less affected by the air flow, further reduces vibration noise, and also makes the outer surface of the range hood more beautiful and easier to clean.

[0025] Preferably, the curved surface is a semi-cylindrical curved surface.

[0026] In this solution, the curved surface is a semi-cylindrical curved surface. Compared with other curved surfaces, the semi-cylindrical curved surface has a more uniform change and a better effect in preventing oil smoke from escaping, which further improves the exhaust efficiency of the range hood. The use of the semi-cylindrical curved surface also makes the outer surface of the range hood more beautiful.

[0027] The positive and progressive effects of the utility model are:

[0028] The utility model provides a range hood, wherein the side surface and the air inlet surface of the range hood are connected by a curved surface with continuous curvature. The side surface is a curved surface structure with continuous curvature. When the airflow flows through the curved surface structure with continuous curvature, it will not rotate sharply to generate vortices. The pressure changes smoothly and the pressure gradient is small. The phenomenon of vortices generated on the side due to sudden pressure changes is avoided, the escape of oil smoke is suppressed, and the smoke extraction efficiency of the range hood is improved. At the same time, the surface of the curved surface structure is smooth, so that the range hood is less affected by the airflow, and the noise generated by vibration is reduced. The curved surface structure increases the strength and rigidity of the range hood, and can also avoid bumps. In addition to potential safety hazards, it avoids cleaning dead corners, is conducive to the removal of adhered oil droplets, is convenient for maintenance, increases the area of ​​the smoke collection chamber of the range hood, and increases the smoke collection volume of the range hood per unit time. The curved surface structure increases the convection heat exchange area between the outer surface of the range hood and the environment, and increases the heat dissipation capacity of the panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the three-dimensional structure of a range hood according to an embodiment of the utility model.

[0030] Figure 2 FIG. 2 is another schematic diagram of the three-dimensional structure of a range hood according to an embodiment of the utility model.

[0031] Figure 3 It is a bottom view of a range hood according to an embodiment of the utility model.

[0032] Description of reference numerals:

[0033] Range hood 100

[0034] Fume hood 110

[0035] Air inlet 200

[0036] Groove 210

[0037] Top wall 220

[0038] Side wall 230

[0039] First side wall 231

[0040] Second side wall 232

[0041] Edge 240

[0042] Air Inlet 250

[0043] Side 300

[0044] First side surface 310

[0045] Second side 320

[0046] Upper surface 400

[0047] Fixed surface 500 DETAILED DESCRIPTION

[0048] The present invention is further described below by way of embodiments, but the present invention is not limited to the scope of the embodiments.

[0049] like Figure 1-Figure 3 As shown, this embodiment provides a range hood 100, which is fixed to a wall via a fixing surface 500. The range hood 100 further includes an air inlet surface 200 and a side surface 300, wherein the air inlet surface 200 is provided with an air inlet 250, and the air inlet 250 is used to absorb oil smoke into the interior of the range hood 100.

[0050] In this embodiment, the range hood 100 includes a fume hood 110, and the air inlet surface 200 and the side surface 300 are arranged on the fume hood 110. In other embodiments, the range hood 100 includes a fume hood 110 and a curved cover body, the curved cover body is arranged outside the fume hood 110, and the air inlet surface 200 and the side surface 300 are arranged on the curved cover body.

[0051] The air inlet surface 200 and the side surface 300 can be provided on the curved cover body or on the fume hood 110, that is, the curved surface structure of the outer surface of the range hood 100 can be structurally integrated with the fume hood 110, or can be formed into a curved cover body separately and then assembled with the fume hood 110. The curved surface structure has a flexible assembly method, and being structurally integrated with the fume hood 110 can save materials and reduce costs, and being assembled with the fume hood 110 as an assembly is convenient for assembly and later maintenance and replacement.

[0052] The side surface 300 is connected to the air inlet surface 200 and extends upward from the air inlet surface 200. The air inlet surface 200 and the side surface 300 are connected by a curved surface with continuous curvature. The side surface 300 is a curved surface structure with continuous curvature. The airflow flowing through the curved surface structure with continuous curvature will not rotate sharply to generate vortices. The pressure changes smoothly and the pressure gradient is small. The phenomenon of vortices generated by sudden pressure changes on the side surface 300 is avoided, the escape of oil smoke is suppressed, and the smoke extraction efficiency of the range hood 100 is improved. At the same time, the surface of the curved surface structure is smooth, so that the range hood 100 is less affected by the airflow, and the noise generated by vibration is reduced. The curved surface structure increases the strength and rigidity of the range hood, and can also avoid bumps. In addition to potential safety hazards, it avoids cleaning dead corners, is conducive to the removal of adhered oil droplets, is convenient for maintenance, increases the area of ​​the smoke collection cavity of the range hood 100, and increases the smoke collection volume of the range hood per unit time. The curved surface structure increases the convection heat exchange area between the outer surface of the range hood and the environment, and increases the heat dissipation capacity of the panel.

[0053] The curvature of the side surface 300 is continuous with the curvature of the curved surface between the air inlet surface 200 and the side surface 300, so that the curved surface of the side surface 300 and the curved surface between the side surface 300 and the air inlet surface 200 can form a curved surface with continuous curvature, making the outer surface of the range hood 100 smoother, better avoiding the generation of vortices on the side surface 300 of the range hood 100, better preventing the escape of oil smoke, and further improving the suction efficiency of the range hood 100. At the same time, the smoother outer surface makes the oil smoke less affected by the airflow, further reduces vibration noise, and also makes the outer surface of the range hood 100 more beautiful and easier to clean.

[0054] The side surface 300 includes a first side surface 310 along the length direction of the range hood 100 and a second side surface 320 along the width direction of the range hood 100. The first side surface 310 and the second side surface 320 are connected by a curved surface with continuous curvature, so that the connection between the side surfaces 300 in different directions of the range hood 100 is smoother. The use of arc corners here can better prevent the escape of oil smoke, further reduce vibration noise, and avoid users from bumping at the connection between the first side surface 310 and the second side surface 320, thereby improving the safety of the range hood 100. The outer surface of the range hood 100 is also more beautiful and easier to clean.

[0055] The curvature of the curved surface between the first side surface 310 and the second side surface 320 is continuous with the curvature of the curved surface between the air inlet surface 200 and the side surface 300, so that the connection between the side surface 300 of the range hood 100 and the air inlet surface 200 is smoother, the effect of preventing oil smoke from escaping is better, and the suction efficiency of the range hood 100 is further improved. At the same time, the smoother outer surface makes the oil smoke less affected by the airflow, further reduces the vibration noise, and also makes the outer surface of the range hood 100 more beautiful and easier to clean.

[0056] The range hood 100 also includes an upper surface 400, and one end of the side surface 300 away from the air inlet surface 200 is connected to the upper surface 400. The side surface 300 and the upper surface 400 are connected by a curved surface with continuous curvature, so that the outer surface of the range hood 100 is smoother and the effect of preventing oil smoke from escaping is better, thereby further improving the suction efficiency of the range hood 100, further reducing vibration noise, and preventing users from bumping at the connection between the side surface 300 and the upper surface 400, thereby improving the safety of the range hood 100. The outer surface of the range hood 100 is also more beautiful and easier to clean.

[0057] The air inlet surface 200 is recessed toward the interior of the range hood 100 to form a groove 210, and the groove 210 includes a side wall 230 and a top wall 220. The side wall 230 and the top wall 220 are connected by a curved surface with continuous curvature, so that the connection between the side wall 230 and the top wall 220 is smoother, which is more conducive to guiding the oil smoke into the air intake port, improving the oil smoke absorption effect of the range hood 100, and also making the outer surface of the range hood 100 more beautiful and easier to clean.

[0058] The side wall 230 includes a first side wall 231 along the length direction of the range hood 100 and a second side wall 232 along the width direction of the range hood 100. The first side wall 231 and the second side wall 232 are connected by a curved surface with continuous curvature, which can make the connection between the side walls 230 in different directions smoother, thereby making it more conducive to guiding the oil smoke into the air intake port, improving the oil smoke absorption effect of the range hood 100, and making the outer surface of the range hood 100 more beautiful and easier to clean.

[0059] The air inlet surface 200 further includes an edge portion 240 located around the groove 210. In this embodiment, the edge portion 240 is connected to the side wall 230 of the groove 210 by a broken line. In other embodiments, the edge portion 240 is connected to the side wall 230 of the groove 210 by a curved surface with a continuous curvature, so that the edge portion 240 and the side wall 230 of the groove 210 are smoother, so that the oil smoke rising from the bottom plate can enter the groove 210 more smoothly, and then be sucked into the interior of the range hood 100 by the air intake port, so that the effect of preventing the oil smoke from escaping is better, and the suction efficiency of the range hood 100 is further improved. At the same time, the smoother outer surface makes the oil smoke less affected by the air flow, further reduces the vibration noise, and also makes the outer surface of the range hood 100 more beautiful and easier to clean.

[0060] In this embodiment, the curved surface is a semi-cylindrical curved surface. Compared with other curved surfaces, the semi-cylindrical surface has a more uniform change, has a better effect of preventing oil smoke from escaping, and further improves the extraction efficiency of the range hood 100. The use of the semi-cylindrical curved surface also makes the outer surface of the range hood 100 more beautiful. In this embodiment, the radius R of the semi-cylindrical curved surface can be within a certain range, that is, 20 mm ≤ R ≤ 80 mm, and other radius sizes deemed appropriate by those skilled in the art can also be selected.

[0061] In other embodiments, the curved surface may also adopt other types of curved surface structures, such as an elliptical curved surface, a parabolic curved surface, or other curved surface structures deemed appropriate by those skilled in the art.

[0062] In this embodiment, the manufacturing method of the curved surface structure may be sheet metal shelling, welding and flanging. In other embodiments, other manufacturing methods of the curved surface structure deemed appropriate by those skilled in the art may also be adopted.

[0063] In the description of the present invention, it is necessary to understand that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. indicate the orientation or positional relationship of the device or component in normal use, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or component referred to must have a specific orientation, be constructed and operate in a specific orientation at any time, and therefore cannot be understood as a limitation on the present invention in this regard.

[0064] Although the specific implementations of the utility model are described above, those skilled in the art should understand that this is only an example, and the protection scope of the utility model is defined by the attached claims. Those skilled in the art can make various changes or modifications to these implementations without departing from the principle and essence of the utility model, but these changes and modifications fall within the protection scope of the utility model.

Claims

1. A range hood, characterized in that: The range hood comprises an air inlet surface and a side surface, wherein the side surface is connected to the air inlet surface and extends upward from the air inlet surface, the air inlet surface and the side surface are connected by a curved surface with continuous curvature, and the side surface is a curved surface structure with continuous curvature.

2. The range hood according to claim 1, characterized in that: The curvature of the side surface is continuous with the curvature of the curved surface between the air inlet surface and the side surface.

3. The range hood according to claim 1, characterized in that: The side surfaces include a first side surface along the length direction of the range hood and a second side surface along the width direction of the range hood, and the first side surface and the second side surface are connected by a curved surface with continuous curvature.

4. The range hood according to claim 3, characterized in that: The curvature of the curved surface between the first side surface and the second side surface is continuous with the curvature of the curved surface between the air inlet surface and the side surface.

5. The range hood according to claim 1, characterized in that: The range hood further comprises an upper surface, one end of the side surface away from the air inlet surface is connected to the upper surface, and the side surface and the upper surface are connected by a curved surface with continuous curvature.

6. The range hood according to claim 1, characterized in that: The range hood comprises a fume hood and a curved hood body, wherein the curved hood body is arranged outside the fume hood, and the air inlet surface and the side surface are arranged on the curved hood body; Alternatively, the range hood comprises a fume collecting hood, and the air inlet surface and the side surface are arranged on the fume collecting hood.

7. The range hood according to claim 1, characterized in that: The air inlet surface is sunken toward the interior of the range hood to form a groove, and the groove includes a side wall and a top wall, and the side wall and the top wall are connected by a curved surface with continuous curvature.

8. The range hood according to claim 7, characterized in that: The side wall comprises a first side wall along the length direction of the range hood and a second side wall along the width direction of the range hood, and the first side wall and the second side wall are connected by a curved surface with continuous curvature.

9. The range hood according to claim 7, characterized in that: The air inlet surface also includes an edge portion located around the groove, and the edge portion is connected to the side wall of the groove by a curved surface with continuous curvature.

10. The range hood according to any one of claims 1 to 9, characterized in that: The curved surface is a semi-cylindrical curved surface.

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