CN216619932U - Fume exhaust fan - Google Patents

Abstract

The utility model discloses a range hood, relates to the technical field of kitchen ware, and aims to solve the problem that the energy loss is large in the oil fume flowing process of the existing range hood, so that the oil fume suction efficiency is reduced. The range hood comprises a box body, a smoke collection shell and a smoke collection cavity, wherein a fan is arranged in the box body; the cigarette collecting shell is arranged on the lower side of the box body, and a cigarette inlet is formed in the lower side of the cigarette collecting shell; the collection smoke chamber form in inside the collection smoke shell, the collection smoke chamber includes along vertical section and leads the cigarette section, the top of vertical section with the air intake intercommunication of fan, the vertical downwardly extending of vertical section and with lead the cigarette section intercommunication, lead the cigarette section with advance the mouth intercommunication. The utility model is used for the range hood.

Description

Fume exhaust fan

Technical Field

The utility model relates to the technical field of kitchen ware, in particular to a range hood.

Background

A range hood is a common kitchen appliance in daily life. At present, the common range hood is divided into a top suction type range hood and a side suction type range hood, wherein the top suction type range hood has a higher smoke inlet and a limited smoking effect; the smoke collecting cavity of the side-suction range hood extends downwards, so that the smoke inlet is closer to a cooking bench, and the side-suction range hood has a better smoke suction effect compared with a top-suction range hood.

For example, the application number 201910623568.1, which is named as a chinese invention patent application of a range hood, as shown in fig. 1 and fig. 2, the range hood disclosed in this scheme includes a housing 1 and a fan system 2 disposed in the housing, wherein a smoke inlet 11 extending vertically is disposed at a lower portion of the housing 1, a smoke inlet 111 communicating with the smoke inlet 11 is disposed on a front side wall of the lower portion of the housing 1, a smoke collecting chamber 12 communicating with the smoke inlet 11 is disposed at an upper portion of the housing 1, a first oblique edge 113 disposed near a first side wall 112 of the smoke inlet 11 and a second oblique edge 115 disposed near a second side wall 114 are disposed in the smoke inlet 11, the first oblique edge 113 is gradually inclined toward the first side wall 113 of the smoke inlet 11 from top to bottom, the second oblique edge 115 is gradually inclined toward the second side wall 114 of the smoke inlet 11 from top to bottom, a first flow guiding structure 100 is formed by the first oblique edge 113 and the second oblique edge 115, so that oil smoke is gradually gathered along the first flow guiding structure 100 and is sucked into the smoke collecting chamber 12, thereby improving the efficiency of absorbing the oil smoke.

However, in the above-described configuration, the flow distance of the soot flowing along the first oblique side 113 and the second oblique side 115 is long, which causes a large energy loss of the soot flow, and thus, the efficiency of soot suction is reduced.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model provides a range hood, which can reduce the oblique flowing distance of oil smoke and reduce the energy loss of oil smoke flowing, thereby improving the efficiency of oil smoke absorption.

In order to achieve the above purpose, the embodiment of the utility model adopts the following technical scheme:

the embodiment of the utility model provides a range hood, which comprises:

a box body, inside which a fan is arranged;

the smoke collection shell is arranged on the lower side of the box body, and a smoke inlet is formed in the lower side of the smoke collection shell;

the collection smoke chamber, form in inside the collection smoke shell, the collection smoke chamber includes along vertical section and leads the cigarette section, the top of vertical section with the air intake intercommunication of fan, the vertical downwardly extending of vertical section and with lead cigarette section intercommunication, lead the cigarette section with advance the mouth intercommunication.

According to the range hood provided by the embodiment of the utility model, the smoke collection cavity is formed into the vertical section and the smoke guide section, and the vertical section extends downwards so as to reduce the length of the smoke guide section, so that oil smoke can pass through the smoke guide section and enter the vertical section as soon as possible, and is discharged through the fan finally, and therefore, the energy loss of the oil smoke in the flowing process can be reduced.

In some embodiments of the present invention, the smoke collecting cavity further includes a transition section disposed between the smoke guiding section and the vertical section, and the transition section is configured to gradually change the flow direction of the oil smoke to a vertical upward flow.

In some embodiments of the utility model, the width of the smoke guiding section in the vertical direction is gradually reduced from bottom to top.

In some embodiments of the present invention, two smoke collecting plates are disposed in the smoke collecting shell, the two smoke collecting plates are symmetrically disposed on two sides of the smoke collecting shell along the width direction, and the two smoke collecting plates, the front wall and the rear wall of the smoke collecting shell enclose the smoke collecting cavity.

In some embodiments of the utility model, the smoke collection plate comprises:

the vertical section is formed between the two vertical plates;

the swash plate, two form between the swash plate lead the cigarette section, the swash plate set up in the lower limb of riser.

In some embodiments of the utility model, the smoke collection plate further comprises:

the arc plate, set up in the riser with between the swash plate, the axis of arc plate with the back wall of collection cigarette shell is perpendicular, just the axis of arc plate set up in outside the collection cigarette chamber, the last border of arc plate with the lower border of riser is connected, the lower border of arc plate with the last border of swash plate is connected, two form between the arc plate the changeover portion.

In some embodiments of the present invention, the two sloping plates are gradually close to each other from bottom to top along the vertical direction.

In some embodiments of the utility model, the vertical plates have a length of 60mm to 80m in the vertical direction.

In some embodiments of the present invention, the angle between the inclined plate and the horizontal direction is 45 ° to 60 °.

In some embodiments of the present invention, the length of the swash plate ranges from 210mm to 230 mm.

Drawings

FIG. 1 is a block diagram of a range hood of the prior art;

FIG. 2 is a structural diagram of a smoke inlet chamber of a range hood in the prior art;

fig. 3 is a structural diagram of a range hood according to an embodiment of the present invention;

fig. 4 is a structural diagram of a smoke collection shell of the range hood provided by the embodiment of the utility model;

FIG. 5 is a block diagram of a smoke collection chamber within a smoke collection housing provided by an embodiment of the present invention;

FIG. 6 is an enlarged view of the structure of area A of FIG. 5;

FIG. 7 is a block diagram of a smoke collection panel provided by an embodiment of the present invention;

FIG. 8 is an enlarged view of area B of FIG. 7;

fig. 9 is a front view of a smoke trap provided in an embodiment of the present invention.

Reference numerals: 100. a box body; 110. a fan; 200. collecting the cigarette shell; 210. a smoke collection cavity; 211. a vertical section; 212. a smoke guiding section; 213. a transition section; 220. a smoke collecting plate; 221. a vertical plate; 222. a sloping plate; 223. a circular arc plate; 230. a smoke inlet.

Detailed Description

The following describes a range hood according to an embodiment of the present invention in detail with reference to the accompanying drawings.

In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 3 and 4, the range hood according to the embodiment of the present invention includes a box 100 and a smoke collection shell 200, wherein a fan 110 is disposed in the box 100, the smoke collection shell 200 is disposed at a lower side of the box 100, a smoke inlet 230 is disposed at a lower side of the smoke collection shell 200, and a smoke collection cavity 210 is formed therein.

As shown in fig. 3 and 4, when a user needs to use the range hood, the power switch is turned on to control the fan 110 to start, and the fan 110 sucks generated oil smoke into the smoke inlet 230, and discharges the oil smoke to a common flue or the outside through the smoke collection cavity 210 and the air duct inside the box 100, thereby implementing an oil smoke suction function of the range hood.

On the basis, in order to provide the efficiency of absorbing the oil smoke, as shown in fig. 5, the smoke collection cavity 210 of the range hood provided in the embodiment of the present invention includes a vertical section 211 and a smoke guide section 212, a top end of the vertical section 211 is communicated with the air inlet of the fan 110, the vertical section 211 extends downward and is communicated with the smoke guide section 212, and the smoke guide section 212 is communicated with the smoke inlet 230.

According to the range hood provided by the embodiment of the utility model, the smoke collection cavity 210 is arranged into the vertical section 211 and the smoke guide section 212, and the vertical section 211 extends downwards to reduce the length of the smoke guide section 212, so that the oil smoke passes through the smoke guide section 212 as soon as possible, enters the vertical section 211 and is finally discharged through the fan 110, and therefore, the energy loss of the oil smoke in the flowing process can be reduced.

In order to further improve the efficiency of absorbing the oil smoke, as shown in fig. 5 and 6, the smoke collection cavity 210 of the range hood according to the embodiment of the present invention further includes a transition section 213, the transition section 213 is disposed between the smoke guide section 212 and the vertical section 211, and the transition section 213 is used for gradually changing the flow direction of the oil smoke into a vertical upward flow. The flowing direction of the oil smoke flowing along the inner wall of the smoke guiding section 212 is gradually changed through the transition section 213, so that the oil smoke flowing vertically upwards in the middle of the smoke collecting cavity 210 and the oil smoke flowing along the inside of the smoke guiding section 212 can be prevented from directly converging to generate a vortex, and the oil smoke flows unsmoothly.

In some embodiments, as shown in fig. 5 and 6, in the smoke guide section 212 of the range hood provided by the present application, the width of the smoke guide section 212 is gradually reduced from bottom to top along the vertical direction. Because the lower end of the smoke guiding section 212 is communicated with the smoke inlet 230, and the smoke inlet 230 of the range hood needs to correspond to the position of the cooking range below, the width of the smoke inlet 230 is large, that is, the width of the lower end of the smoke guiding section 212 is large, so that after the oil smoke enters the smoke collecting cavity 210 from the smoke inlet 230, the oil smoke firstly passes through the smoke guiding section 212, the oil smoke gradually flows upwards, the width of the smoke guiding section 212 is gradually reduced, the oil smoke is gradually gathered in the middle of the smoke collecting cavity 210, and the oil smoke is convenient to rapidly flow upwards under the action of negative pressure generated by the fan 110, thereby being beneficial to improving the efficiency of absorbing the oil smoke.

Moreover, since the width of the smoke guide section 212 is gradually reduced, the negative pressure state formed by the fan 110 is not weakened at both sides of the lower end of the smoke guide section 212, so that the oil smoke at both sides of the lower end of the smoke guide section 212 can rapidly flow upward along the smoke guide section 212.

In some embodiments, as shown in fig. 5 and 6, two smoke collecting plates 220 are disposed in the smoke collecting shell 200 provided by the present application, the two smoke collecting plates 220 are symmetrically disposed on two sides of the smoke collecting shell 200 along the width direction, and the two smoke collecting plates 220, the front wall and the rear wall of the smoke collecting shell 200 enclose the smoke collecting cavity 210. Through two smoke collecting plates 220 symmetrically arranged in the smoke collecting shell 200, the smoke collecting cavity 210 can be formed, the structure is simple, and cost reduction is facilitated.

In some embodiments, as shown in fig. 5 and 7, the smoke collecting plate 220 provided herein includes vertical plates 221 and inclined plates 222, a vertical section 211 of the smoke collecting cavity 210 is formed between the two vertical plates 221, a smoke guiding section 212 of the smoke collecting cavity 210 is formed between the two inclined plates 222, and the inclined plates 222 are disposed at lower edges of the vertical plates 221. Through setting up smoke collecting plate 220 into riser 221 and swash plate 222 two parts to form the vertical section 211 and the smoke guide section 212 of smoke collecting cavity 210, the oil smoke that gets into smoke inlet 230 flows along swash plate 222, makes the oil smoke gather together to smoke collecting cavity 210's middle part gradually, and swash plate 222 can not block the negative pressure environment of fan 110's formation, consequently, the oil smoke homoenergetic that gets into the air intake can upwards flow under the negative pressure effect that fan 110 produced.

In some embodiments, as shown in fig. 7 and 8, the smoke collecting plate 220 provided by the present application further includes an arc plate 223, the arc plate 223 is disposed between the vertical plate 221 and the inclined plate 222, an axis of the arc plate 223 is perpendicular to the rear wall of the smoke collecting shell 200, an axis of the arc plate 223 is disposed outside the smoke collecting cavity 210, an upper edge of the arc plate 223 is connected with a lower edge of the vertical plate 221, a lower edge of the arc plate 223 is connected with an upper edge of the inclined plate 222, and as shown in fig. 5 and 6, a transition section 213 is formed between the two arc plates 223. That is to say, when the oil smoke flows to the circular arc plate 223 along the sloping plate 222, the oil smoke can flow around the axis along the surface of the circular arc plate 223, so, when the oil smoke flowing obliquely upwards along the sloping plate 222 reaches the circular arc plate 223, the flowing direction can be gradually changed along the surface of the circular arc plate 223, after the oil smoke crosses the circular arc plate 223, the flowing direction is changed into vertical upward flowing, so that the flowing direction of the oil smoke is gradually changed, the occurrence of the condition of generating vortex when the oil smoke converges with the middle part of the smoke collection cavity 210 is avoided, and the efficiency of absorbing the oil smoke is improved.

In some embodiments, the vertical plate 221, the circular arc plate 223 and the inclined plate 222 provided by the present application may be three mutually independent plates, and the smoke collecting plate 220 is formed after splicing and fixing; the vertical plate 221, the arc plate 223 and the sloping plate 222 can also be of an integrated structure, namely the smoke collecting plate 220 is bent to form the vertical plate 221, the arc plate 223 and the sloping plate 222, so that the overall strength is improved, and therefore, the specific structural form of the smoke collecting plate 220 is not limited.

In some embodiments, the bottom end of the sloping plate 222 provided herein may extend directly to the smoke inlet 230, so that the oil smoke entering the smoke inlet 230 gradually gathers directly along the sloping plate 222; or a certain distance may be left between the oil smoke inlet 230 and the oil smoke, that is, after entering the oil smoke inlet 230, the oil smoke flows vertically upwards, then contacts the inclined plate 222, flows along the inclined plate 222 and gradually gathers together.

In some embodiments, as shown in fig. 5 and 7, the two sloping plates 222 provided herein gradually approach each other from bottom to top in the vertical direction. The two inclined plates 222 are close to each other, so that the width of the smoke guiding section 212 between the two inclined plates 222 is gradually reduced, that is, the oil smoke entering the smoke inlet 230 can be gradually gathered to the middle position, thereby improving the oil smoke suction efficiency.

Moreover, because two smoke collecting plates 220 that this application provided are symmetrical each other sets up, two swash plate 222's inclination is the same promptly, consequently, the suction that the oil smoke that flows along two swash plate 222 received is also the same to can keep the oil smoke on both sides to flow upwards with the same flow velocity, the suction of avoiding receiving is different, leads to the oil smoke flow velocity difference, and then the condition of production vortex takes place.

On the basis, in order to prevent the vertical section 211 of the smoke collecting cavity 210 from being too long, as shown in fig. 9, the length of the vertical plate 221 provided by the embodiment of the utility model along the vertical direction is L, and the length range of L is 60mm to 80 mm. Repeated experiments show that the oil smoke absorption effect is better when the length L of the vertical plate 221 is within the range.

In addition, in order to prevent the smoke guide effect of the smoke guide section 212 from being poor due to the too large or too small inclination angle of the inclined plate 222, as shown in fig. 9, an included angle between the inclined plate 222 and the horizontal direction provided by the embodiment of the present invention is a, and the angle a ranges from 45 ° to 60 °. Repeated experiments show that when the inclination angle a of the inclined plate 222 is within the range, the smoke guiding effect of the inclined plate 222 is better.

In addition, in order to prevent the energy loss in the oil smoke flowing process from being large due to the excessively long length of the inclined plate 222, as shown in fig. 9, the length of the inclined plate 222 provided by the embodiment of the present invention is H, and the length range of H is 210mm to 230 mm. Repeated experiments show that when the length H of the sloping plate 222 is within the range, the sloping plate 222 can ensure the smoke guiding effect, and meanwhile, the excessive energy loss during the oil smoke flowing can not be caused, so that the smoke guiding effect is further improved.

It should be noted that the length of the vertical plate 221, the inclination angle of the sloping plate 222 and the length of the sloping plate 222 provided in the present application are designed and determined according to actual conditions, which refer to specific dimensions of products, application scenarios, and the like.

In the description herein, particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.

Claims (10)

1. A range hood, comprising:

a box body, inside which a fan is arranged;

the smoke collection shell is arranged on the lower side of the box body, and a smoke inlet is formed in the lower side of the smoke collection shell;

the collection smoke chamber, form in inside the collection smoke shell, the collection smoke chamber includes along vertical section and leads the cigarette section, the top of vertical section with the air intake intercommunication of fan, the vertical downwardly extending of vertical section and with lead cigarette section intercommunication, lead the cigarette section with advance the mouth intercommunication.

2. The range hood of claim 1, wherein the smoke collection chamber further comprises a transition section, the transition section is disposed between the smoke guide section and the vertical section, and the transition section is configured to gradually change a flow direction of the oil smoke into a vertical upward flow.

3. The range hood of claim 2, wherein the width of the smoke guiding section is gradually reduced from bottom to top along the vertical direction.

4. The range hood according to claim 2 or 3, wherein two smoke collecting plates are disposed in the smoke collecting shell, the two smoke collecting plates are symmetrically disposed on two sides of the smoke collecting shell along the width direction, and the two smoke collecting plates and the front wall and the rear wall of the smoke collecting shell enclose the smoke collecting cavity.

5. The range hood of claim 4, wherein the smoke collection plate comprises:

the vertical section is formed between the two vertical plates;

the swash plate, two form between the swash plate lead the cigarette section, the swash plate set up in the lower limb of riser.

6. The range hood of claim 5, wherein the smoke collection plate further comprises:

the arc plate, set up in the riser with between the swash plate, the axis of arc plate with the back wall of collection cigarette shell is perpendicular, just the axis of arc plate set up in outside the collection cigarette chamber, the last border of arc plate with the lower border of riser is connected, the lower border of arc plate with the last border of swash plate is connected, two form between the arc plate the changeover portion.

7. The range hood of claim 5, wherein the two sloping plates gradually approach each other from bottom to top along the vertical direction.

8. The range hood of any one of claims 5 to 7, wherein the length of the vertical plate in the vertical direction is 60mm to 80 mm.

9. The range hood of any one of claims 5 to 7, wherein an included angle between the inclined plate and the horizontal direction is 45 ° to 60 °.

10. The range hood of any one of claims 5 to 7, wherein the length of the sloping plate ranges from 210mm to 230 mm.

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