Range hood

Abstract

The utility model provides a range hood and relates to the technical field of kitchen equipment. The range hood comprises an exhaust fume collecting hood, flow guide plates and a driving device, the exhaust fume collecting hood comprises an exhaust fume collecting cavity and an air inlet plate, an air inlet is formed in the air inlet plate and communicated with the exhaust fume collecting cavity and the outside, the flow guide plates are arranged close to the air inlet, one end of each flow guide plate is rotationally connected to the air inlet plate, and the flow guide plates comprise the first flow guide plate and the second flow guide plate. The smoke collecting cavity is divided into a left cavity and a right cavity in the length direction of the smoke collecting cover, the first flow guide plate is arranged in the left cavity, the second flow guide plate is arranged in the right cavity, and the driving device drives the first flow guide plate and the second flow guide plate to rotate, so that the opening and closing angles of the first flow guide plate and the second flow guide plate can be controlled, the air inlet pressure is changed, and the air volume is adjusted. The range hood adapts to different cooking scenes and improves the cooking fume suction effect.

Description

Technical Field

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

[0002] In order to prevent oil smoke from escaping and improve the oil smoke absorption effect, the range hoods currently on the market usually adopt a smoke collection cavity shape, but the design and manufacturing of the smoke collection cavity shape is relatively complex. In addition, the oil smoke absorption effect can also be improved by adding an external smoke collection plate or an air curtain, but the addition of an external smoke collection plate will cause the oil smoke to condense on the surface, which is not conducive to daily cleaning. At the same time, it will take up space and cause users to bump their heads. Adding an air curtain will increase costs and generate noise during use. In order to separate the oil smoke and prevent oil droplets from dripping directly, the range hood currently mainly uses an oil net to control it, but a sparse oil net will make the oil smoke separation unclean, and an overly dense oil net will increase the resistance of the air inlet, which is not conducive to the oil smoke absorption effect.

[0003] In the actual cooking process, the double-burner gas stove works on one side most of the time or cooks and stir-fries at the same time, and the amount of oil smoke produced above each burner is different. The range hood usually controls the opening and closing angle of the external smoke baffle to adjust the size of the air inlet on both sides. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a range hood in order to overcome the defect of poor smoke extraction effect of the range hood in the prior art.

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

[0006] The utility model provides a range hood, which comprises: a smoke collecting hood, a guide plate and a driving device;

[0007] The smoke collecting hood comprises a smoke collecting chamber and an air inlet plate, the air inlet plate is provided with an air inlet, and the air inlet connects the smoke collecting chamber and the outside;

[0008] The guide plate is arranged close to the air inlet, one end of the guide plate is rotatably connected to the air inlet plate, and the guide plate includes a first guide plate and a second guide plate;

[0009] The smoke collecting chamber is divided into a left cavity and a right cavity along the length direction of the smoke collecting hood, the first guide plate is arranged in the left cavity, and the second guide plate is arranged in the right cavity;

[0010] The driving device drives the first guide plate and the second guide plate to rotate respectively.

[0011] In this solution, the smoke collecting chamber of the range hood is provided with a guide plate near the air inlet, so as to guide the oil smoke. The smoke collecting chamber is divided into a left cavity and a right cavity along the length direction of the smoke collecting hood. The first guide plate and the second guide plate are respectively arranged in the left cavity and the right cavity. The driving device can drive the first guide plate and the second guide plate to rotate respectively, so as to control the opening and closing angles of the first guide plate and the second guide plate respectively, change the air inlet pressure to adjust the air volume, adapt to different cooking scenes, and improve the oil smoke absorption effect. Since the driving device controls the first guide plate and the second guide plate respectively, when the left gas stove is used, only the first guide plate is controlled to be opened, and when the right gas stove is used, only the second guide plate is controlled to be opened. When the gas stoves on both sides are used at the same time, the two guide plates are opened at the same time to improve the oil smoke absorption efficiency. When the oil smoke enters the smoke collecting chamber, it will first contact the guide plate, so that the oil droplets can be gathered downward along the guide plate, and the oil smoke is effectively collected. When the guide plate is closed, mosquitoes and dust can be prevented from entering the smoke collecting chamber, and the oil smoke can also be prevented from flowing back.

[0012] Preferably, the driving device comprises a motor shaft and a connecting rod;

[0013] The motor shaft drives the connecting rod to rotate, and the connecting rod is connected to the guide plate.

[0014] In this solution, the motor shaft can drive the connecting rod to rotate, and the connecting rod is connected to the guide plate, so that the connecting rod drives the guide plate to rotate to guide the oil smoke.

[0015] Preferably, the range hood further comprises a body and a fan;

[0016] The fan is arranged inside the fuselage;

[0017] The guide plate is provided with a protrusion at a portion close to the fan, and the protrusion at least partially extends into the interior of the fuselage.

[0018] In this solution, the fan is arranged inside the machine body, and the protrusion of the guide plate at least partially extends into the inside of the machine body, so that the oil smoke can be better directed to the fan, so that the smoke extraction effect of the range hood is better.

[0019] Preferably, the guide plate comprises a main body and a lower flange provided on a side of the main body close to the air inlet plate;

[0020] The lower flange extends toward the air inlet plate.

[0021] In the present solution, the above-mentioned structural form is adopted, so that the lower flange is conducive to guiding the oil droplets condensed from the oil smoke toward the air inlet plate, which is more conducive to the oil droplets gathering on the air inlet plate, and the oil droplets can be collected more effectively.

[0022] Preferably, the air inlet plate is inclined downward from the front side of the range hood to the rear side of the range hood;

[0023] The smoke collecting hood further includes an upper surface, and the included angle between the upper surface and the air inlet plate is θ1, where 10° < θ1 < 45°; and / or,

[0024] The included angle between the upper surface and the main body is θ2, where 0° < θ2 < 45°.

[0025] In this solution, the air inlet plate is inclined obliquely downward from the front side to the rear side of the range hood, so that the oil droplets can slide down along the air inlet plate into the oil cup. θ1 > 10° can ensure that the oil droplets can flow, and θ1 < 45° can prevent the air inlet plate from having too large an inclination angle, resulting in interference between the air inlet plate and the cooking range or cookware. At the same time, it can also prevent bumping when in use and the phenomenon of oil dripping from the air inlet plate due to too large an angle. 0° < θ2 < 45° can ensure that the deflector plate is inclined backward, and can guide the oil fume backward into the fan, improving the oil fume extraction effect.

[0026] Preferably, the width of the main body is w2, the width of the downward turned edge is w3, the smoke collecting hood further includes an upper surface, the minimum height between the air inlet plate and the upper surface is h1, the width of the air inlet is d, the included angle between the upper surface and the air inlet plate is θ1, and the included angle between the upper surface and the main body is θ2;

[0027] w2 > (dcosθ1 / cosθ2) and 0 < w3 < 0.5h1 / cosθ1.

[0028] In this solution, w2 > (dcosθ1 / cosθ2) and 0 < w3 < 0.5h1 / cosθ1, so as to ensure that the bending position of the downward turned edge is outside the air inlet, prevent the bending part of the deflector plate from being directly above the air inlet, and avoid oil droplets from dripping from the air inlet.

[0029] Preferably, the width of the main body is w2, the smoke collecting hood further includes an upper surface, the minimum height between the motor shaft and the upper surface is h2, and the included angle between the upper surface and the main body is θ2;

[0030] w2 < (h2 / sinθ2).

[0031] In this solution, w2 < (h2 / sinθ2), so as to ensure that the deflector plate can be placed in the smoke collecting cavity and ensure that the deflector plate does not interfere with the upper surface of the smoke collecting hood.

[0032] Preferably, the deflector plate includes a main body and an upward turned edge provided on the side of the main body close to the fan;

[0033] The upward turned edge extends in the direction of the fan.

[0034] In this solution, adopting the above structural form is beneficial to guiding the oil fume in the direction of the fan, making the smoking effect of the range hood better.

[0035] Preferably, the guide plate comprises a main body and a side flange provided on a side of the main body;

[0036] The side flange is connected to the connecting rod, and the side flange extends toward the air inlet plate.

[0037] In this solution, the guide plate is provided with a side flange, which is used to connect with the connecting rod. At the same time, the side flange extends toward the air inlet plate, which can better guide the smoke and also help guide the oil droplets condensed from the smoke toward the air inlet plate, which is more conducive to the collection of oil droplets on the air inlet plate.

[0038] Preferably, the main body is a curved surface or an inverted V-shaped inclined surface.

[0039] In this solution, the above-mentioned structural form is adopted, which is more conducive to collecting smoke and gathering oil droplets, so that the oil droplets flow along the arc surface or the inverted V-shaped slope to the air inlet plate.

[0040] The positive and progressive effects of the utility model are:

[0041] The utility model provides a range hood, wherein a smoke collecting chamber of the range hood is provided with a guide plate near an air inlet, so as to guide the oil smoke, and the smoke collecting chamber is divided into a left cavity and a right cavity along the length direction of the smoke collecting hood, and a first guide plate and a second guide plate are respectively provided in the left cavity and the right cavity, and a driving device can drive the first guide plate and the second guide plate to rotate respectively, so as to control the opening and closing angles of the first guide plate and the second guide plate respectively, change the air inlet pressure to adjust the air volume, adapt to different cooking scenes, and improve the oil smoke absorption effect. Since the driving device controls the first guide plate and the second guide plate respectively, when the left gas stove is used, only the first guide plate is controlled to be opened, and when the right gas stove is used, only the second guide plate is controlled to be opened, and when the gas stoves on the left and right sides are used at the same time, the two guide plates are opened at the same time, so as to improve the oil smoke absorption efficiency. When the oil smoke enters the smoke collecting chamber, it will first contact the guide plate, so that the oil droplets can be gathered downward along the guide plate, and the oil smoke is effectively collected. When the guide plate is closed, it can prevent mosquitoes and dust from entering the smoke collecting chamber and also prevent the backflow of oil smoke. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 It is a schematic diagram of the three-dimensional structure of a range hood according to an embodiment of the utility model.

[0043] Figure 2 It is a schematic cross-sectional structure diagram of a range hood according to an embodiment of the utility model.

[0044] Figure 3 for Figure 2 An enlarged schematic diagram of part A.

[0045] Figure 4It is a bottom view of the structure of a range hood according to an embodiment of the utility model.

[0046] Figure 5 It is a schematic diagram of the three-dimensional structure of the smoke collecting chamber according to an embodiment of the utility model.

[0047] Figure 6 It is a schematic diagram of the three-dimensional structure of a guide plate and a driving device according to an embodiment of the utility model.

[0048] Figure 7 It is a schematic diagram of the three-dimensional structure of a guide plate according to an embodiment of the utility model.

[0049] Description of reference numerals:

[0050] Range hood 100

[0051] Fume hood 200

[0052] Smoke chamber 210

[0053] Left cavity 211

[0054] Right cavity 212

[0055] Air inlet plate 220

[0056] Air Inlet 221

[0057] Upper surface 230

[0058] Deflector 300

[0059] First guide plate 310

[0060] Second guide plate 320

[0061] Main body 330

[0062] Protrusion 340

[0063] Bottom flange 350

[0064] 360 degree upper flange

[0065] Side Flanging 370

[0066] Drive device 400

[0067] Motor shaft 410

[0068] Connecting rod 420

[0069] Body 500

[0070] Fan 510

[0071] Front side 610

[0072] Rear side 620 DETAILED DESCRIPTION

[0073] The present invention is further described below by way of embodiments, but the present invention is not limited to the scope of the embodiments.

[0074] like Figure 1-Figure 7 As shown, this embodiment provides a range hood 100 , which includes: a fume collecting hood 200 , a body 500 , a fan 510 , a guide plate 300 and a driving device 400 , wherein the fan 510 is disposed inside the body 500 .

[0075] The smoke hood 200 includes a smoke collecting chamber 210, an upper surface 230 and an air inlet plate 220. The air inlet plate 220 is provided with an air inlet 221, which connects the smoke collecting chamber 210 with the outside. The air inlet 221 can be one, two or more. In this embodiment, the air inlet 221 is in a strip shape. In other embodiments, other shapes of air inlets 221 that are considered appropriate by those skilled in the art may also be selected. In this embodiment, two air inlets 221 are arranged in parallel and spaced apart at the left and right parts of the air inlet plate 220. In other embodiments, other positions of the air inlet plate 220 that are considered appropriate by those skilled in the art may also be adopted.

[0076] The guide plate 300 is arranged near the air inlet 221, and the guide plate 300 can guide the oil smoke. One end of the guide plate 300 is rotatably connected to the air inlet plate 220, and the guide plate 300 includes a first guide plate 310 and a second guide plate 320. The smoke collecting chamber 210 is divided into a left cavity 211 and a right cavity 212 along the length direction of the smoke collecting hood 200. The first guide plate 310 is arranged in the left cavity 211, and the second guide plate 320 is arranged in the right cavity 212. The driving device 400 drives the first guide plate 310 and the second guide plate 320 to rotate respectively, so as to control the opening and closing angles of the first guide plate 310 and the second guide plate 320 respectively, adjust the air intake size of the range hood 100, adapt to different cooking scenes, and improve the oil smoke extraction effect. Since the driving device 400 controls the first guide plate 310 and the second guide plate 320 respectively, when the left gas stove is used, only the first guide plate 310 is controlled to be opened, and when the right gas stove is used, only the second guide plate 320 is controlled to be opened. When the gas stoves on both sides are used at the same time, the two guide plates 300 are opened at the same time to improve the efficiency of oil fume absorption. When the oil fume enters the smoke collecting chamber 210, it will first contact the guide plate 300, so that the oil droplets can be gathered downward along the guide plate 300, effectively collecting the oil fume. When the guide plate 300 is closed, it can prevent mosquitoes and dust from entering the smoke collecting chamber 210, and can also prevent the oil fume from flowing back.

[0077] like Figure 6As shown, the driving device 400 includes a motor shaft 410 and a connecting rod 420. The motor shaft 410 drives the connecting rod 420 to rotate. The connecting rod 420 is connected to the guide plate 300, so that the connecting rod 420 drives the guide plate 300 to rotate to guide the oil smoke. In this embodiment, the guide plate 300 is connected to the connecting rod 420 by bolts. In other embodiments, plug-in or hinged connection can also be adopted, and other connection methods of the guide plate 300 and the connecting rod 420 that are deemed appropriate by those skilled in the art can also be selected.

[0078] like Figure 7 As shown, the guide plate 300 is provided with a protrusion 340 near the fan 510, and the protrusion 340 at least partially extends into the interior of the body 500, so as to better guide the oil smoke to the fan 510, so that the smoke extraction effect of the range hood 100 is better.

[0079] The guide plate 300 includes a main body 330 and a lower flange 350 provided on the side of the main body 330 close to the air inlet plate 220. The main body 330 is an arc surface or an inverted V-shaped slope, which is more conducive to collecting smoke and gathering oil droplets, so that the oil droplets flow along the arc surface or the inverted V-shaped slope to the air inlet plate 220. Other shapes of the main body 330 deemed appropriate by technicians in this field may also be adopted.

[0080] The lower flange 350 extends toward the air inlet plate 220 , so that the lower flange 350 can guide the oil droplets condensed from the oil smoke toward the air inlet plate 220 , which is more conducive to the oil droplets gathering on the air inlet plate 220 and can collect the oil droplets more effectively.

[0081] The guide plate 300 further includes an upper flange 360 ​​disposed on the side of the main body 330 close to the fan 510 . The upper flange 360 ​​extends toward the fan 510 , which is beneficial for guiding the oil smoke toward the fan 510 , thereby improving the smoke extraction effect of the range hood 100 .

[0082] The guide plate 300 also includes a side flange 370 arranged on the side of the main body 330, and the side flange 370 is connected to the connecting rod 420. At the same time, the side flange 370 extends toward the air inlet plate 220, which can better guide the smoke and also help to guide the oil droplets condensed from the smoke toward the air inlet plate 220, which is more conducive to the oil droplets gathering on the air inlet plate 220.

[0083] The air inlet plate 220 is inclined downward from the front side 610 of the range hood 100 to the rear side 620 of the range hood 100. Figure 2 As shown, the front side 610 refers to the side where the user is located, and the side opposite thereto is the rear side 620 .

[0084] The included angle between the upper surface 230 of the range hood 100 and the air inlet plate 220 is θ1, 10°<θ1<45°, and the included angle between the upper surface 230 and the main body 330 is θ2, 0°<θ2<45°.

[0085] The air inlet plate 220 is inclined obliquely downward from the front side 610 to the rear side 620 of the range hood 100, so that the oil droplets can slide down along the air inlet plate 220 and enter the oil cup. θ1>10° can ensure that the oil droplets can flow, and it can be specifically determined according to different oil amounts and the surface material of the air inlet plate 220. θ1<45° can avoid interference between the air inlet plate 220 and the stove or cookware due to too large an inclination angle of the air inlet plate 220, and at the same time, it can also prevent bumping when in use and the oil dripping phenomenon of the air inlet plate 220 due to too large an angle. 0°<θ2<45° can ensure that the deflector 300 is inclined backward to the rear side 620, and can guide the cooking fumes to the rear side 620 and into the fan 510, improving the fume extraction effect.

[0086] The width of the main body 330 is w2, the width of the downward turned edge 350 is w3, the minimum height of the air inlet plate 220 and the upper surface 230 is h1, the minimum height of the motor shaft 410 and the upper surface 230 is h2, and the width of the air inlet 221 is d. w2>(dcosθ1 / cosθ2) and 0<w3<0.5h1 / cosθ1, so as to ensure that the bending position of the downward turned edge 350 is outside the air inlet 221, prevent the bending part of the deflector 300 from being directly above the air inlet 221, and avoid oil droplets dripping from the air inlet 221. At the same time, w2<(h2 / sinθ2), so as to ensure that the deflector 300 can be placed in the smoke collecting cavity 210 and ensure that the deflector 300 does not interfere with the upper surface 230 of the smoke collecting hood 200.

[0087] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is the orientation of the device or component in normal use, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation at any time, and therefore cannot be construed as a limitation of the present invention in this regard.

[0088] Although the specific implementation manners of the present invention have been described above, those skilled in the art should understand that this is only an example, and the protection scope of the present invention is defined by the appended claims. Without departing from the principle and essence of the present invention, those skilled in the art can make various changes or modifications to these implementation manners, but these changes and modifications all fall within the protection scope of the present invention.

Claims

1. A range hood, characterized in that: It includes: a smoke hood, a guide plate and a driving device; The smoke collecting hood comprises a smoke collecting chamber and an air inlet plate, the air inlet plate is provided with an air inlet, and the air inlet connects the smoke collecting chamber and the outside; The guide plate is arranged close to the air inlet, one end of the guide plate is rotatably connected to the air inlet plate, and the guide plate includes a first guide plate and a second guide plate; The smoke collecting chamber is divided into a left cavity and a right cavity along the length direction of the smoke collecting hood, the first guide plate is arranged in the left cavity, and the second guide plate is arranged in the right cavity; The driving device drives the first guide plate and the second guide plate to rotate respectively; The range hood also includes a body and a fan; The fan is arranged inside the fuselage; The guide plate is provided with a protrusion at a portion close to the fan, and the protrusion at least partially extends into the interior of the fuselage.

2. The range hood according to claim 1, characterized in that: The driving device comprises a motor shaft and a connecting rod; The motor shaft drives the connecting rod to rotate, and the connecting rod is connected to the guide plate.

3. The range hood according to claim 2, characterized in that: The deflector comprises a main body and a lower flange provided on a side of the main body close to the air inlet plate; The lower flange extends toward the air inlet plate.

4. The range hood according to claim 3, characterized in that: The air inlet plate is inclined downward from the front side of the range hood to the rear side of the range hood; The smoke collecting hood further comprises an upper surface, and an angle between the upper surface and the air inlet plate is θ1, 10°<θ1<45°; and / or, The included angle between the upper surface and the main body is θ2, 0°<θ2<45°.

5. The range hood according to claim 3, characterized in that: The width of the main body is w2, the width of the lower flange is w3, the smoke hood further comprises an upper surface, the minimum height between the air inlet plate and the upper surface is h1, the width of the air inlet is d, the angle between the upper surface and the air inlet plate is θ1, and the angle between the upper surface and the main body is θ2; w2>(dcosθ1 / cosθ2) and 0 <w3<0.5h1 / cosθ1。 6. The range hood according to claim 3, characterized in that: The width of the main body is w2, the smoke collecting hood further comprises an upper surface, the minimum height between the motor shaft and the upper surface is h2, and the angle between the upper surface and the main body is θ2; w2<(h2 / sinθ2).

7. The range hood according to claim 2, characterized in that: The guide plate comprises a main body and an upper flange provided on a side of the main body close to the fan; The upper flange extends toward the fan.

8. The range hood according to claim 2, characterized in that: The guide plate comprises a main body and a side flange arranged on the side of the main body; The side flange is connected to the connecting rod, and the side flange extends toward the air inlet plate.

9. The range hood according to claim 3, characterized in that: The main body is a curved surface or an inverted V-shaped inclined surface.

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