CN104676697A - Exhaust hood - Google Patents
Exhaust hood Download PDFInfo
- Publication number
- CN104676697A CN104676697A CN201510103328.0A CN201510103328A CN104676697A CN 104676697 A CN104676697 A CN 104676697A CN 201510103328 A CN201510103328 A CN 201510103328A CN 104676697 A CN104676697 A CN 104676697A
- Authority
- CN
- China
- Prior art keywords
- air
- converting interface
- range hood
- out converting
- opening
- 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.)
- Pending
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Classifications
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- 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
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Ventilation (AREA)
Abstract
The invention provides an exhaust hood which comprises an outer cover, a volute, a cross-flow fan and an air outlet adapter, wherein an air inlet is formed in the lower side of the outer cover; the volute is arranged in the outer cover; the cross-flow fan is arranged in the volute and close to the air inlet; the air outlet adapter adopts a hollow structure with openings in two ends, the opening in one end is larger than the opening in the other end, and the opening in the one end of the air outlet adapter is communicated with an air outlet port of the volute. According to the provided exhaust hood, the cross-flow fan is close to the air inlet, so that the resistance when oil fumes enter the cross-flow fan is reduced, and the oil fume exhaust effect of the exhaust hood is improved; the opening, connected with the volute, in the one end of the air outlet adapter is larger than the opening in the other end, accordingly, the fume exhaust capacity of the exhaust hood is improved, oil and fume separation is accelerated, and the oil fume exhaust effect of the exhaust hood is good.
Description
Technical field
The present invention relates to kitchen utensils field, more specifically, relate to a kind of range hood.
Background technology
The Core Feature of range hood is fume exhaust, and current most of range hood uses centrifugal blower, and not only aerodynamic noise is large, and can not all oil smoke of suction in complete set, causes fume exhaust weak effect.As: in prior art, during European T-shaped range hood work, oil smoke needs to be introduced in smoke collecting chamber, then discharged by centrifugal blower, smoke collecting chamber is in the side of centrifugal blower, and cigarette machine air inlet is below centrifugal blower, and both are no longer on straight line, this runner design causes the resistance that is subject in oil smoke flow process comparatively large, can not give full play to the efficiency of blower fan; Also there is a kind of range hood in prior art, adopt two fans fume exhaust, the cost of this range hood is higher, and cigarette machine is bulky, and noise is also very large; Also there is a kind of range hood in prior art, is provided with air curtain in exhaust fume collecting hood surrounding, and to stop oil smoke to external diffusion, this way likely can dispel oil smoke, does not play lampblack-pumped effect, can reduce the lampblack-pumped efficiency of exhauster for removing kitchen fumes on the contrary.
Summary of the invention
The present invention is intended at least to solve one of technical problem existed in prior art.
, the object of the invention is to for this reason, a kind of range hood reducing noise while ensureing smoking effect is provided.
For achieving the above object, The embodiment provides a kind of range hood, comprising: outer cover, the downside of described outer cover has air inlet; Spiral case, described spiral case is positioned at described outer cover; Blower fan, described blower fan is positioned at described spiral case; With air-out converting interface, be the hollow structure of both ends open, and the opening size of one end is greater than the opening size of the other end, the described opening of air-out converting interface one end is connected with the air-out port of described spiral case.
In the above embodiment of the present invention, be connected with the spiral case opening size of one end of air-out converting interface is larger, the opening size of the other end is less, identical according to the flow of oil smoke in the unit interval, after the channel cross-sectional area in air-out converting interface reduces, the flow velocity of oil smoke air-flow increases, namely oil smoke is when the other end of air-out converting interface flows out, its speed increases when comparatively flowing into air-out converting interface, makes oil smoke discharge air-out converting interface and range hood fast, improves the effect of range hood mist extractor.
Air-out converting interface not only increases the smoke evacuation ability of range hood, simultaneously, opening size due to air-out converting interface other end end is less than the opening size of its one end, therefore on air-out converting interface, there is the contraction structure that draught area reduces, this contraction structure can gather oil smoke, make a large amount of tiny oil droplets stick on the internal face of air-out converting interface, promote that oil smoke is separated further, prevent the oil smoke be not separated completely in a large number to be rejected to outdoor contaminated environment.
In addition, the range hood that the above embodiment of the present invention provides also has following additional technical feature:
According to one embodiment of present invention, from one end of described air-out converting interface to the other end, the side of described air-out converting interface slopes inwardly gradually.
According to one embodiment of present invention, the side of described air-out converting interface is plane or the cambered surface of inclination.
According to one embodiment of present invention, from one end of described air-out converting interface to the other end, the side of described air-out converting interface first slopes inwardly backward extending out.
According to one embodiment of present invention, the side of described air-out converting interface is arcwall face.
According to one embodiment of present invention, the air-out port of described spiral case and the opening of described air-out converting interface one end are all square; And/or the opening of the described air-out converting interface other end is rounded or square.
According to one embodiment of present invention, described air-out converting interface and described spiral case are integral type structure.
According to one embodiment of present invention, described blower fan is cross flow fan.
According to one embodiment of present invention, described blower fan is near described air inlet.
According to one embodiment of present invention, described range hood is T-shaped cigarette machine or turriform cigarette machine.
Additional aspect of the present invention and advantage become obvious by description part below, or are recognized by practice of the present invention.
Accompanying drawing explanation
Above-mentioned and/or additional aspect of the present invention and advantage will become obvious and easy understand from accompanying drawing below combining to the description of embodiment, wherein:
Fig. 1 is the partial schematic sectional view of the main TV structure of range hood according to one embodiment of the invention;
Fig. 2 is that sectional structure schematic diagram is looked on a left side for range hood shown in Fig. 1;
Fig. 3 is the assembly structure schematic diagram of tubular wine wheel in Fig. 1, spiral case and air-out converting interface;
Fig. 4 is the schematic front view of air-out converting interface in Fig. 3;
Fig. 5 is the structural representation of air-out converting interface described according to a further embodiment of the invention.
Wherein, the corresponding relation in Fig. 1 to Fig. 5 between Reference numeral and component names is:
1 range hood, 10 control panels, 11 cross flow fans, 12 motors, 13 spiral cases, 130 air intake ports, 131 air-out ports, 14 air-out converting interfaces, 15 lubricating cups, 16 screen packs, 17 deflectors, 18 outer covers, 180 air inlets.
Detailed description of the invention
In order to more clearly understand above-mentioned purpose of the present invention, feature and advantage, below in conjunction with the drawings and specific embodiments, the present invention is further described in detail.It should be noted that, when not conflicting, the feature in the embodiment of the application and embodiment can combine mutually.
Set forth a lot of detail in the following description so that fully understand the present invention; but; the present invention can also adopt other to be different from mode described here to implement, and therefore, protection scope of the present invention is not by the restriction of following public specific embodiment.
The range hood provided according to some embodiments of the invention is described with reference to the accompanying drawings.
As shown in Figure 1, Figure 2 and Figure 3, a kind of range hood 1 provided according to some embodiments of the invention, comprising: outer cover 18, blower fan, spiral case 13 and air-out converting interface 14.
Wherein, the downside of described outer cover 18 has air inlet 180, and described air inlet 180 place is provided with screen pack 16;
Described spiral case 13 is positioned at described outer cover 18, and described spiral case 13 has air intake port 130 and air-out port 131, and described air intake port 130 is towards the air inlet 180 of described outer cover 18;
Described blower fan 11 is positioned at described spiral case 13, and near described air inlet 180, namely blower fan 11 is near described screen pack 16, and described blower fan 11 is connected with motor 12, and motor 12 can drive wind wheel 11 to rotate;
Described air-out converting interface 14 is the hollow structure of both ends open, and the opening size of one end is greater than the opening size of the other end, and the opening of described air-out converting interface 14 one end is connected with the air-out port 131 of described spiral case 13.
In the above embodiment of the present invention, be connected with the spiral case opening size of one end of air-out converting interface is larger, the opening size of the other end is less, identical according to the flow of oil smoke in the unit interval, after the channel cross-sectional area in air-out converting interface reduces, the flow velocity of oil smoke air-flow increases, namely oil smoke is when the other end of air-out converting interface flows out, its speed increases when comparatively flowing into air-out converting interface, makes oil smoke discharge air-out converting interface and range hood fast, improves the effect of range hood mist extractor.
Air-out converting interface not only increases the smoke evacuation ability of range hood, simultaneously, opening size due to air-out converting interface other end end is less than the opening size of its one end, therefore on air-out converting interface, there is the contraction structure that draught area reduces, this contraction structure can gather oil smoke, make a large amount of tiny oil droplets stick on the internal face of air-out converting interface, promote that oil smoke is separated further, prevent the oil smoke be not separated completely in a large number to be rejected to outdoor contaminated environment.
In addition, blower fan is near screen pack, and such oil smoke can directly enter wind wheel impeller, is subject to resistance little, improves the smoke absorption effect of range hood.
Preferably, as depicted in figs. 1 and 2, described blower fan is cross flow fan 11.
Cross flow blower is advantageous in selection of dimension, and its suction power is even, noise is low.
It should be noted that, described blower fan also can be centrifugal blower.
In some embodiments of the invention, as shown in Figure 3 and Figure 4, from one end of described air-out converting interface 14 to the other end, the side of described air-out converting interface 14 slopes inwardly gradually.
Particularly, the side of described air-out converting interface 14 is plane (as shown in Figure 3 and Figure 4) or the cambered surface of inclination.
From one end of air-out converting interface to the other end, the side of air-out converting interface slopes inwardly gradually, namely along the flow direction of oil smoke, channel cross-sectional area in air-out converting interface reduces gradually, when such oil smoke air-flow flows in air-out converting interface, speed increases gradually, makes oil smoke can flow out air-out converting interface fast, and then make oil smoke discharge range hood fast, ensure that the speed of range hood mist extractor.In addition, because the side of air-out converting interface slopes inwardly gradually, oil smoke fully can be contacted with the internal face of air-out converting interface, make tiny oil droplets can stick on the internal face of air-out converting interface, promote that oil smoke is separated, prevent the oil smoke be not separated completely in a large number to be rejected to outdoor contaminated environment.
In other embodiments of the present invention, as shown in Figure 5, from one end of described air-out converting interface 14 to the other end, the side of described air-out converting interface 14 is first to inside contracting backward extending out.
Particularly, the side of described air-out converting interface 14 is arcwall face, and namely air-out converting interface is in the shape of approximate Lavalle spout.
From one end of air-out converting interface to the other end, the side of air-out converting interface is first to inside contracting backward extending out, namely along the flow direction of oil smoke, channel cross-sectional area in air-out converting interface first reduces gradually, after increase gradually, in the process of oil smoke airflow passes contraction section, speed increases gradually, and the tiny oil droplets in oil smoke air-flow can stick on the internal face of contraction section, promote that oil smoke is separated; Oil smoke air-flow is when flowing through expansion segment, speed reduces, part dynamic pressure is converted into static pressure, so both ensure that oil smoke has higher speed when flowing out air-out converting interface, so that oil smoke discharges range hood fast, oil smoke air-flow has larger static pressure simultaneously, be conducive to oil smoke and successfully discharge range hood, improve the operating efficiency of range hood, and the speed of oil smoke air-flow reduces, be conducive to the noise produced when reducing range hood work.
In some embodiments of the invention, as shown in Figure 3, the air-out port of described spiral case 13 and the opening of described air-out converting interface 14 one end are all square, and the opening shape of the two is suitable, and the two can airtightly be connected.
Further, as shown in Figure 3, the opening of described air-out converting interface 14 other end is rounded or square.
In the above embodiment of the present invention, rectangle air-out port suitable with cross flow fan on spiral case can be converted to circular or square air-out port by air-out converting interface, makes the shape of the shape of the air-out port of range hood (i.e. the air-out port of air-out converting interface) and smoke discharging pipe suitable.
In some embodiments of the invention, described air-out converting interface 14 is integral type structure with described spiral case 13, ensure that airtight connection of one end of air-out converting interface and spiral case air-out port, and the quantity of the integral structure parts that make range hood comprise reduces, simplify the structure of range hood, be convenient to assembling.
Certainly, also air-out converting interface can be become split-type structural with Volute Design.
Range hood 1 described in the above-mentioned any embodiment of the present invention can be European T-shaped cigarette machine (as depicted in figs. 1 and 2), also can be turriform cigarette machine.
Range hood 1 shown in Fig. 1 and Fig. 2 also comprises: control panel 10, lubricating cup 15 and deflector 17.
In sum, the range hood that the embodiment of the present invention provides, by arranging cross flow fan near screen pack, reducing resistance when oil smoke enters tubular wine wheel, improve the smoke absorption effect of range hood; Being greater than the opening size of the other end by arranging to be connected with the spiral case opening size of one end of air-out converting interface, improve the smoke evacuation ability of range hood, also promoting oil smoke simultaneously and be separated, make the effective of the fume exhaust of range hood.
In describing the invention, term " multiple " refers to two or more; Term " installation ", " connection ", " fixing " etc. all should be interpreted broadly, and such as, " connection " can be fixedly connected with, and also can be removably connect, or connects integratedly; Can be directly be connected, also indirectly can be connected by intermediary.For the ordinary skill in the art, above-mentioned term concrete meaning in the present invention can be understood as the case may be.
In describing the invention, it will be appreciated that, term "left", "right", " on ", the orientation of the instruction such as D score is based on orientation shown in the drawings, only the present invention for convenience of description and simplified characterization, instead of indicate or imply that the device of indication or element must have specific orientation, therefore can not be interpreted as limitation of the present invention.
In the description of this description, specific features, structure, material or feature that the description of term " embodiment ", " some embodiments ", " specific embodiment " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present invention or example.In this manual, identical embodiment or example are not necessarily referred to the schematic representation of above-mentioned term.And the specific features of description, structure, material or feature can combine in an appropriate manner in any one or more embodiment or example.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a range hood, is characterized in that, comprising:
Outer cover, the downside of described outer cover has air inlet;
Spiral case, described spiral case is positioned at described outer cover;
Blower fan, described blower fan is positioned at described spiral case; With
Air-out converting interface, described air-out converting interface is the hollow structure of both ends open, and the opening size of one end is greater than the opening size of the other end, and the described opening of air-out converting interface one end is connected with the air-out port of described spiral case.
2. range hood according to claim 1, is characterized in that,
From one end of described air-out converting interface to the other end, the side of described air-out converting interface slopes inwardly gradually.
3. range hood according to claim 2, is characterized in that,
The side of described air-out converting interface is plane or the cambered surface of inclination.
4. range hood according to claim 1, is characterized in that,
From one end of described air-out converting interface to the other end, the side of described air-out converting interface first slopes inwardly backward extending out.
5. range hood according to claim 4, is characterized in that,
The side of described air-out converting interface is arcwall face.
6. range hood according to claim 1, is characterized in that,
The air-out port of described spiral case and the opening of described air-out converting interface one end are all square; And/or
The opening of the described air-out converting interface other end is rounded or square.
7. range hood according to any one of claim 1 to 6, is characterized in that,
Described air-out converting interface and described spiral case are integral type structure.
8. range hood according to any one of claim 1 to 6, is characterized in that,
Described blower fan is cross flow fan.
9. range hood according to any one of claim 1 to 6, is characterized in that,
Described blower fan is near described air inlet.
10. range hood according to any one of claim 1 to 6, is characterized in that,
Described range hood is T-shaped cigarette machine or turriform cigarette machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510103328.0A CN104676697A (en) | 2015-03-09 | 2015-03-09 | Exhaust hood |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510103328.0A CN104676697A (en) | 2015-03-09 | 2015-03-09 | Exhaust hood |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104676697A true CN104676697A (en) | 2015-06-03 |
Family
ID=53312092
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510103328.0A Pending CN104676697A (en) | 2015-03-09 | 2015-03-09 | Exhaust hood |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104676697A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107781886A (en) * | 2017-11-27 | 2018-03-09 | 杨肇 | A kind of zero-sum formula low-carbon oil fume purifier and cleaning system |
| WO2022206483A1 (en) * | 2021-04-01 | 2022-10-06 | 芜湖美的厨卫电器制造有限公司 | Range hood |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3880062A (en) * | 1973-11-08 | 1975-04-29 | Aero Dyne Manufacturing Inc | Hood |
| CN102072515A (en) * | 2011-01-21 | 2011-05-25 | 宁波方太厨具有限公司 | Range hood with air-suction double-injection acceleration function |
| CN102207301A (en) * | 2011-06-28 | 2011-10-05 | 美的集团有限公司 | Smoke exhaust ventilator |
| CN103162323A (en) * | 2011-12-12 | 2013-06-19 | 上海市第一中学 | Range hood |
| EP2610556A2 (en) * | 2011-12-29 | 2013-07-03 | Indesit Company S.p.A. | Odour filter for a range hood, and related range hood |
| CN203771507U (en) * | 2014-03-25 | 2014-08-13 | 代颖堂 | Range hood and main engine structure thereof |
-
2015
- 2015-03-09 CN CN201510103328.0A patent/CN104676697A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3880062A (en) * | 1973-11-08 | 1975-04-29 | Aero Dyne Manufacturing Inc | Hood |
| CN102072515A (en) * | 2011-01-21 | 2011-05-25 | 宁波方太厨具有限公司 | Range hood with air-suction double-injection acceleration function |
| CN102207301A (en) * | 2011-06-28 | 2011-10-05 | 美的集团有限公司 | Smoke exhaust ventilator |
| CN103162323A (en) * | 2011-12-12 | 2013-06-19 | 上海市第一中学 | Range hood |
| EP2610556A2 (en) * | 2011-12-29 | 2013-07-03 | Indesit Company S.p.A. | Odour filter for a range hood, and related range hood |
| CN203771507U (en) * | 2014-03-25 | 2014-08-13 | 代颖堂 | Range hood and main engine structure thereof |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107781886A (en) * | 2017-11-27 | 2018-03-09 | 杨肇 | A kind of zero-sum formula low-carbon oil fume purifier and cleaning system |
| WO2019101022A1 (en) * | 2017-11-27 | 2019-05-31 | 杨肇 | Zero-sum low-carbon purifying smoke extractor and purification system |
| CN107781886B (en) * | 2017-11-27 | 2019-07-19 | 杨肇 | One kind zero and formula low-carbon oil fume purifier and purification system |
| US11460196B2 (en) | 2017-11-27 | 2022-10-04 | Zhongshan Calculus Science And Technology Ltd | Low-carbon self-balance cooking fume purifier |
| WO2022206483A1 (en) * | 2021-04-01 | 2022-10-06 | 芜湖美的厨卫电器制造有限公司 | Range hood |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150603 |