CN109425002B - Fume exhauster - Google Patents
Fume exhauster Download PDFInfo
- Publication number
- CN109425002B CN109425002B CN201710736770.6A CN201710736770A CN109425002B CN 109425002 B CN109425002 B CN 109425002B CN 201710736770 A CN201710736770 A CN 201710736770A CN 109425002 B CN109425002 B CN 109425002B
- Authority
- CN
- China
- Prior art keywords
- convex part
- lower convex
- guide plate
- oil
- smoke
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000003517 fume Substances 0.000 title claims abstract description 29
- 239000000779 smoke Substances 0.000 claims abstract description 50
- 230000007704 transition Effects 0.000 claims description 6
- 230000000694 effects Effects 0.000 abstract description 5
- 238000009792 diffusion process Methods 0.000 description 11
- 238000010521 absorption reaction Methods 0.000 description 3
- 235000019504 cigarettes Nutrition 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 238000010411 cooking Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C15/00—Details
- F24C15/20—Removing cooking fumes
- F24C15/2071—Removing cooking fumes mounting of cooking hood
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Ventilation (AREA)
Abstract
The utility model provides a range hood, includes the fan dustcoat, and the inside fan system that is equipped with of fan dustcoat is equipped with collection petticoat pipe and smoke guide plate below the fan dustcoat, is equipped with the oil filter screen in the smoke guide plate top, is equipped with the oil cup in the below of collection petticoat pipe rear side portion, its characterized in that: the bottom of the rear side of the fume collecting hood is provided with a lower convex part which is strip-shaped and distributed along the left and right directions, the oil cup is arranged at the bottom of the lower convex part, the fume guide plate is inclined downwards from front to back, the rear part of the fume guide plate is adjacent to the front side surface of the lower convex part, and the rear part of the fume guide plate is positioned above the oil cup. The invention has the advantages that: the range hood is matched with the inclined smoke guide plate through the lower convex part at the bottom of the rear side of the smoke collecting hood, under the condition of ensuring the smoke absorbing effect of the front side of the smoke collecting hood, a more effective rear-side reinforced type oil absorbing and guiding structure is formed, the air inlet quantity of the rear parts of the left side and the right side is increased, the escape of the smoke at the rear parts of the left side and the right side of the smoke collecting hood is reduced, and meanwhile, the surface condensate oil attached to the left corner and the right corner of the smoke collecting hood is led into an oil cup through the lower convex part.
Description
Technical Field
The invention relates to a range hood.
Background
The existing range hood is generally provided with a smoke guide plate, and the smoke guide plate is used for rectifying the oil smoke below the fume collecting hood, so that the fume absorbing effect of the range hood is improved. Various smoke guide plate structures of a range hood are disclosed in the prior art, such as a diffusion drainage device of a range hood disclosed in China patent application No. CN201310627395.3 (issued publication No. CN 103697511B), wherein a diffusion drainage plate (namely the smoke guide plate) of the diffusion drainage device has a concave structure with a high middle and a low periphery, so that the pressure distribution of the lower side and the edge of the range hood is improved and reconstructed, the negative pressure is externally expanded to the edge of the diffusion drainage plate due to the Venturi effect, the effective area for removing the smoke is enlarged by approximately 2 times, the smoke gas can quickly flow upwards after rising and contacting with the edge of the diffusion drainage plate, and meanwhile, the smoke gas flows inwards to the air inlet of a fan along the negative pressure channel formed by the diffusion drainage plate and the inner surface of a smoke collecting cavity at the upper part of the diffusion drainage plate. Although, for traditional top-draft range hood, this range hood's diffusion drainage device makes the negative pressure district have great external expansion through setting up indent region on the diffusion drainage flow control board, has greatly improved the problem of oil smoke diffusion, but it also has the following problem simultaneously: firstly, because the concave part is formed in the middle of the diffusion drainage plate, and the whole body is not inclined backwards or the inclination angle is very small, water vapor and oil smoke are easy to accumulate in the middle area of the back surface of the smoke guide plate in the long-time cooking process, and then drop to the periphery of the smoke guide plate; secondly, the oil smoke in the rear corner areas on the left side and the right side of the fume collecting hood is easy to escape, and oil marks are left on the rear wall surface of the fume collecting hood.
Disclosure of Invention
The invention aims to solve the technical problem of providing a range hood capable of reducing the escape of oil smoke in left and right rear corner areas of a fume collecting hood and smoothly guiding condensed oil on the rear side wall surface of the fume collecting hood into an oil cup.
The technical scheme adopted for solving the technical problems is as follows: this range hood includes the fan dustcoat, the inside fan system that is equipped with of fan dustcoat, fan dustcoat below is equipped with collection petticoat pipe and smoke guide plate be equipped with the oil filter screen above the smoke guide plate, be equipped with the oil cup in the below of collection petticoat pipe rear side portion, its characterized in that: the rear side bottom of collection petticoat pipe is equipped with down the convex part, down the convex part be the strip and along controlling to the distribution, the oil cup is installed down the bottom of convex part, the smoke guide plate is from preceding slant downward sloping backward, and the rear portion of smoke guide plate is adjacent the leading flank of convex part down, and the rear portion of smoke guide plate is located the top of oil cup.
In order to enable the lower convex part to smoothly guide oil, the inside of the lower convex part is hollow, an opening is formed at the top of the lower convex part, an oil dripping hole is formed at the bottom of the lower convex part, the vertical projection of the bottom of the rear side of the fume collecting hood falls into the opening of the lower convex part, and the vertical projection of the oil dripping hole falls into the oil cup.
In order to enable the condensed oil on the surface of the lower convex part to smoothly flow into the oil cup, the front side surface and the rear side surface of the lower convex part are vertical planes, the left side surface and the right side surface of the lower convex part are inclined surfaces which incline from top to bottom to the middle, and the vertical projections of the corner transition surfaces of the bottom surface and the left side surface of the lower convex part and the corner transition surfaces of the bottom surface and the right side surface of the lower convex part fall into the oil cup.
Further preferably, the left and right sides of the lower protrusion are each provided with a cut, and the oil flowing from the left and right sides can flow into the lower protrusion through the corresponding cut. Thus, the condensate oil on the left and right sides of the lower convex portion can smoothly flow into the lower convex portion through the cut-out.
Further preferably, the inclination angle of the left side surface and the right side surface of the lower protruding portion is 40 ° to 80 °.
In order to effectively increase the area of the air inlet at the rear side of the fume collecting hood, the inclination angle of the fume guide plate relative to the horizontal plane is 8-18 degrees.
In order to enable oil condensed on the smoke guide plate to smoothly flow into the oil cup, the rear side part of the smoke guide plate is provided with an oil leakage hole, and the vertical projection of the oil leakage hole falls into the oil cup.
Preferably, the fan used by the fan system is a centrifugal fan.
Further preferably, the lower protruding portion and the fume collecting hood are of an integrally formed structure.
Further preferably, the lower protruding portion and the fume collecting hood are of a split structure.
Compared with the prior art, the invention has the advantages that: this range hood forms banding lower convex part in the rear side bottom of collection petticoat pipe, this lower convex part cooperatees the back with the smoke guide plate of slope, under the circumstances of guaranteeing collection petticoat pipe front side oil absorption effect, forms more effectual rear side strenghthened type oil absorption cigarette and leads oily structure, has increased the intake of controlling the rear portion, reduces the fume escape of the rear portion about the collection petticoat pipe, promotes user experience greatly, simultaneously, can be with the surperficial condensate oil of attaching collection petticoat pipe left and right sides rear corner through lower convex part leading-in the oil cup.
Drawings
FIG. 1 is a schematic diagram of an embodiment of the present invention;
FIG. 2 is a cross-sectional view of an embodiment of the present invention;
FIG. 3 is an enlarged schematic view of portion A of FIG. 2;
fig. 4 is a schematic structural view of a lower protruding portion according to an embodiment of the present invention.
Detailed Description
The invention is described in further detail below with reference to the embodiments of the drawings.
As shown in fig. 1 to 4, the range hood in the present embodiment includes a blower housing 1, a blower system 2, a smoke collecting hood 3, a smoke guide plate 4, an oil filter 5, an oil cup 6, and the like. Wherein, fan system 2 installs in fan dustcoat 1 and adopts centrifugal fan, and collection petticoat pipe 3 and smoke guide plate 4 locate fan dustcoat 1 below, and oil filter screen 5 is installed on collection petticoat pipe 3 and is located smoke guide plate 4 top. The rear bottom of the fume collecting hood 3 is provided with a lower protruding part 7, in this embodiment, the lower protruding part 7 and the fume collecting hood 3 are in a split structure, the lower protruding part 7 is strip-shaped and distributed along the left and right directions, the oil cup 6 is detachably mounted at the bottom of the lower protruding part 7, the smoke guide plate 4 is inclined downwards from front to back, and the inclination angle of the smoke guide plate 4 relative to the horizontal plane is 8 degrees-18 degrees, preferably can be 12.5 degrees. The rear part of the smoke guide plate 4 is adjacent to the front side surface of the lower convex part 7, the rear part of the smoke guide plate 4 is positioned above the oil cup 6, and a plurality of oil leakage holes 41 are formed in the rear part of the smoke guide plate 4, and the vertical projection of the oil leakage holes 41 falls into the oil cup 6, so that the oil condensed on the smoke guide plate 4 can smoothly flow into the oil cup 6.
In this embodiment, the inside of the lower protruding portion 7 is hollow, the top of the lower protruding portion 7 forms an opening 71, the bottom of the lower protruding portion 7 is provided with an oil dropping hole 72, and the vertical projection of the bottom of the rear side of the fume collecting hood 3 falls into the opening 71 of the lower protruding portion 7, and the vertical projection of the oil dropping hole 72 falls into the oil cup 6. Thus, the oil smoke is condensed into oil droplets on the rear side wall surface of the fume collecting hood 3, and then smoothly flows into the lower protruding portion 7, and further flows into the oil cup 6 through the oil droplet hole 72.
In this embodiment, the front side and the rear side of the lower protruding portion 7 are vertical planes, the left side and the right side of the lower protruding portion 7 are inclined planes inclined from top to bottom to the middle, and the inclination angles of the left side and the right side are 40 ° to 80 °. In order to make the oil drops on the surface of the lower convex part 7 smoothly flow into the oil cup 6, vertical projections of the corner transition surface of the bottom surface of the lower convex part 7 and the left side surface and the corner transition surface of the bottom surface of the lower convex part and the right side surface fall into the oil cup 6. Further, the left and right side surfaces of the lower convex portion 7 are each provided with a cut-and-break 73, and the oil flowing in from the left and right side surfaces can flow into the inside of the lower convex portion 7 through the corresponding cut-and-break 73.
This range hood during operation, the lower convex part 7 of collection petticoat pipe 3 rear side cooperates the rear corner air intake structure of the left and right sides that forms with the smoke guide plate 4 of slope, has increased the air inlet area of collection petticoat pipe 3 left and right sides rear corner, forms more effectual rear side strenghthened type oil absorption cigarette oil guide structure under the circumstances of guaranteeing the front side effect for the flue gas that reaches about rear corner just is inhaled before touching collection petticoat pipe 3 lower plane, thereby increases the intake of left and right sides rear portion, reduces collection petticoat pipe 3 left and right sides rear portion's oil smoke escape, promotes user experience. At the same time, the surface condensate oil attached to the left and right rear corners of the fume collecting hood 3 is led into the oil cup 6 through the lower convex part 7.
While the above description is of the preferred embodiment of the present invention, it should be noted that it will be apparent to those skilled in the art that various modifications and improvements can be made to the present invention without departing from the principles of the present invention, for example, the lower protrusion 7 and the smoke collecting hood 3 can be integrally formed, which are considered to be within the scope of the present invention.
Claims (9)
1. The utility model provides a range hood, includes fan dustcoat (1), fan dustcoat (1) inside is equipped with fan system (2), and fan dustcoat (1) below is equipped with collection petticoat pipe (3) and smoke guide plate (4) be equipped with oil filter screen (5) above smoke guide plate (4), be equipped with oil cup (6) in the below of collection petticoat pipe (3) rear portion, its characterized in that: the rear bottom of the fume collecting hood (3) is provided with a lower protruding portion (7), the lower protruding portion (7) is strip-shaped and distributed along the left and right directions, the oil cup (6) is installed at the bottom of the lower protruding portion (7), the fume guide plate (4) is inclined downwards from front to back, the rear portion of the fume guide plate (4) is adjacent to the front side surface of the lower protruding portion (7), the rear portion of the fume guide plate (4) is located above the oil cup (6), and a fan adopted by the fan system (2) is a centrifugal fan.
2. The range hood of claim 1, wherein: the inside building of lower convex part (7) is empty, and opening (71) are formed at the top of lower convex part (7), and open the bottom of lower convex part (7) has oil drip hole (72), the vertical projection of collection petticoat pipe (3) rear side bottom falls into in opening (71) of lower convex part (7), the vertical projection of oil drip hole (72) fall into oil cup (6).
3. The range hood of claim 1, wherein: the front side and the rear side of the lower convex part (7) are vertical planes, the left side and the right side of the lower convex part (7) are inclined planes which incline from top to bottom to the middle, and vertical projections of a corner transition surface between the bottom surface of the lower convex part (7) and the left side and a corner transition surface between the bottom surface of the lower convex part (7) and the right side fall into the oil cup (6).
4. A range hood according to claim 3, wherein: the left side surface and the right side surface of the lower convex part (7) are respectively provided with a cutting opening (73), and oil flowing in from the left side surface and the right side surface can flow into the lower convex part (7) through the corresponding cutting openings (73).
5. A range hood according to claim 3, wherein: the inclination angle of the left side surface and the right side surface of the lower convex part (7) is 40-80 degrees.
6. The range hood of claim 1, wherein: the inclination angle of the smoke guide plate (4) relative to the horizontal plane is 8-18 degrees.
7. The range hood of claim 1, wherein: the rear part of the smoke guide plate (4) is provided with an oil leakage hole (41), and the vertical projection of the oil leakage hole (41) falls into the oil cup (6).
8. The range hood according to any one of claims 1 to 7, wherein: the lower convex part (7) and the fume collecting hood (3) are of an integrated structure.
9. The range hood according to any one of claims 1 to 7, wherein: the lower convex part (7) and the fume collecting hood (3) are of a split structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710736770.6A CN109425002B (en) | 2017-08-24 | 2017-08-24 | Fume exhauster |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710736770.6A CN109425002B (en) | 2017-08-24 | 2017-08-24 | Fume exhauster |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109425002A CN109425002A (en) | 2019-03-05 |
| CN109425002B true CN109425002B (en) | 2024-01-16 |
Family
ID=65500997
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710736770.6A Active CN109425002B (en) | 2017-08-24 | 2017-08-24 | Fume exhauster |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109425002B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110207228A (en) * | 2019-04-19 | 2019-09-06 | 华帝股份有限公司 | Range hood capable of independently adjusting left and right air inlet amount |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005188818A (en) * | 2003-12-25 | 2005-07-14 | Yamaha Livingtec Corp | Range hood |
| CN202303572U (en) * | 2011-10-31 | 2012-07-04 | 海尔集团公司 | Side-draught range hood |
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| CN203036721U (en) * | 2012-12-04 | 2013-07-03 | 广东万家乐燃气具有限公司 | Oil-way structure of extractor hood |
| CN203036722U (en) * | 2012-12-05 | 2013-07-03 | 广东万家乐燃气具有限公司 | Three-dimensional-air-incoming range hood |
| JP2013160442A (en) * | 2012-02-06 | 2013-08-19 | Panasonic Corp | Range hood |
| CN203231365U (en) * | 2013-03-29 | 2013-10-09 | 海尔集团公司 | Side suction range hood |
| CN203309971U (en) * | 2013-04-26 | 2013-11-27 | 美的集团股份有限公司 | Range hood |
| CN203628763U (en) * | 2013-11-30 | 2014-06-04 | 宁波方太厨具有限公司 | Range hood with flow guide plate |
| CN104141975A (en) * | 2013-05-09 | 2014-11-12 | 博西华电器（江苏）有限公司 | Side draft smoke ventilator shell and side draft smoke ventilator |
| CN206330188U (en) * | 2016-12-29 | 2017-07-14 | 宁波方太厨具有限公司 | A kind of intelligent range hood |
| CN206330191U (en) * | 2016-12-29 | 2017-07-14 | 宁波方太厨具有限公司 | A kind of range hood with smoke deflector |
| CN207162672U (en) * | 2017-08-24 | 2018-03-30 | 宁波方太厨具有限公司 | A kind of range hood |
-
2017
- 2017-08-24 CN CN201710736770.6A patent/CN109425002B/en active Active
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005188818A (en) * | 2003-12-25 | 2005-07-14 | Yamaha Livingtec Corp | Range hood |
| CN202303572U (en) * | 2011-10-31 | 2012-07-04 | 海尔集团公司 | Side-draught range hood |
| CN202419761U (en) * | 2011-12-30 | 2012-09-05 | 博西华电器（江苏）有限公司 | Side-draught range hood |
| JP2013160442A (en) * | 2012-02-06 | 2013-08-19 | Panasonic Corp | Range hood |
| CN203036721U (en) * | 2012-12-04 | 2013-07-03 | 广东万家乐燃气具有限公司 | Oil-way structure of extractor hood |
| CN203036722U (en) * | 2012-12-05 | 2013-07-03 | 广东万家乐燃气具有限公司 | Three-dimensional-air-incoming range hood |
| CN203231365U (en) * | 2013-03-29 | 2013-10-09 | 海尔集团公司 | Side suction range hood |
| CN203309971U (en) * | 2013-04-26 | 2013-11-27 | 美的集团股份有限公司 | Range hood |
| CN104141975A (en) * | 2013-05-09 | 2014-11-12 | 博西华电器（江苏）有限公司 | Side draft smoke ventilator shell and side draft smoke ventilator |
| CN203628763U (en) * | 2013-11-30 | 2014-06-04 | 宁波方太厨具有限公司 | Range hood with flow guide plate |
| CN206330188U (en) * | 2016-12-29 | 2017-07-14 | 宁波方太厨具有限公司 | A kind of intelligent range hood |
| CN206330191U (en) * | 2016-12-29 | 2017-07-14 | 宁波方太厨具有限公司 | A kind of range hood with smoke deflector |
| CN207162672U (en) * | 2017-08-24 | 2018-03-30 | 宁波方太厨具有限公司 | A kind of range hood |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109425002A (en) | 2019-03-05 |
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