CN200943901Y - Improved oil smoke absorber spiral casing and oil smoke absorber installed with same - Google Patents
Improved oil smoke absorber spiral casing and oil smoke absorber installed with same Download PDFInfo
- Publication number
- CN200943901Y CN200943901Y CN 200620120872 CN200620120872U CN200943901Y CN 200943901 Y CN200943901 Y CN 200943901Y CN 200620120872 CN200620120872 CN 200620120872 CN 200620120872 U CN200620120872 U CN 200620120872U CN 200943901 Y CN200943901 Y CN 200943901Y
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- China
- Prior art keywords
- spiral case
- guide vane
- lampblack absorber
- volute body
- air outlet
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Abstract
The utility model discloses an improved volute shell of the range hood and a range hood arranged with the volute shell. The volute shell comprises a volute shell body, a volute tongue, an air outlet and an air inlet; wherein, the volute shell body is of a spire-shaped tray and is arranged with an suction orifice at the side, the volute tongue is positioned at the beginning place of the spire of the volute shell body, the air outlet is positioned at the ending place of the spire of the volute shell body. The utility model is characterized in that at least a guide vane which corresponds to the curved surface of the spire of the volute shell body is positioned within the range of 30 degrees of the ending place of the spire of the volute shell body. The utility model has the advantages of low degree of the noise, large volume of the air and high efficiency.
Description
Technical field
The utility model relates to a kind of spiral case, particularly relates to a kind of deep kitchen ventilator spiral case.
The utility model also relates to a kind of lampblack absorber that this lampblack absorber spiral case is installed.
Background technology
The lampblack absorber spiral case comprises volute body, snail tongue, air outlet and inlet scoop at present.Volute body is a spiral helicine disk body, and volute body is to be that the volute body wrapper sheet and the left side plate of helical curve constitutes by the cross section, and left side plate is installed in volute body wrapper sheet both sides and forms the helical form disk body.The volute body side is provided with the inlet scoop, is provided with impeller in volute body inside with corresponding position, position, inlet scoop, and the snail tongue is to be positioned at volute body spiral original position, and air outlet is the opening that is positioned at place, volute body spiral ultimate position.Like this, when rotating under the effect of impeller at motor, the air in the volute body is got rid of outside the volute body by impeller, and in the inner negative pressure that forms of volute body, oil smoke is got rid of outdoor under the effect of impeller after entering the inlet scoop under the effect of negative pressure.The weak point of the spiral case of such lampblack absorber is that the noise of gas in spiral case is bigger, air outlet flue gas velocity skewness, and the exhaust air rate potentiality are performance not, can make that also the interior noise of spiral case is higher.
In addition, because the noise of spiral case is bigger, thereby the lampblack absorber overall noise that such spiral case is installed is also bigger.
The utility model content
Technical problem to be solved in the utility model is to eliminate above-mentioned the deficiencies in the prior art, and a kind of improved lampblack absorber spiral case that can effectively reduce noise is provided.
Another technical problem to be solved of the present utility model provides that a kind of noise is lower, air quantity is bigger, the range hood of high efficiency.
A kind of improved lampblack absorber spiral case of the present utility model, comprise volute body, snail tongue, air outlet and air inlet, described volute body is the helical form disk body, described volute body side is provided with the inlet scoop, described snail tongue is positioned at described volute body spiral original position, and described air outlet is positioned at place, described volute body spiral ultimate position, it is characterized in that, be provided with a slice guide vane at least in 30 ° of scopes of described volute body spiral end of a period, described guide vane is corresponding with described volute body spiral camber position.
The utility model also has following additional technical characterictic:
Lampblack absorber spiral case of the present utility model can also be that described guide vane is the arc guide vane, and described guide vane radian is 50 °～80 °.
Lampblack absorber spiral case of the present utility model, also to be that described guide vane is that an end is a round end, an end is a fine stern.
Lampblack absorber spiral case of the present utility model can also be that an end of described guide vane round end is vertical with described air outlet, and an end of described guide vane fine stern is parallel with described air outlet direction.
Lampblack absorber spiral case of the present utility model can also be that described guide vane cross section is circular arc or hyperbola or parabola shaped or half elliptic.
Lampblack absorber spiral case of the present utility model can also be to be provided with columnar projections in the initial 45 ° of scopes of described spiral case.
Lampblack absorber spiral case of the present utility model, the cross section that can also be described projection are circular arc or hyperbola or parabola shaped or half elliptic.
Lampblack absorber spiral case of the present utility model can also be that described protruding start angle is 5 °～10 °, and described protruding end of a period angle is 35 °～40 °, and the height of described projection is 5～12mm.
A kind of lampblack absorber that provides according to another technical problem of the present utility model, comprise frame, power supply, switching device and fan assembly, described fan assembly includes motor, impeller, spiral case and air channel, described impeller is positioned at described spiral case, comprise volute body, the snail tongue, air outlet and air inlet, described volute body is the helical form disk body, described volute body side is provided with the inlet scoop, described snail tongue is positioned at described volute body spiral original position, described air outlet is positioned at place, described volute body spiral ultimate position, it is characterized in that, be provided with a slice guide vane at least in 30 ° of scopes of described volute body spiral end of a period, described guide vane is corresponding with described volute body spiral camber position.
Lampblack absorber spiral case of the present utility model has the following advantages with respect to prior art: owing to be provided with guide vane in spiral case, make that mean wind speed improves, wind speed uneven distribution degree descends, reduce noise.And being provided with of volute body projection can reduce the hydrodynamic noise of air-flow in volute body.
Lampblack absorber of the present utility model has with respect to prior art that noise is low, the advantage of high efficiency.
Description of drawings
Streamline schematic diagram in Fig. 1 prior art lampblack absorber spiral case
Fig. 2 the utility model lampblack absorber spiral case specific embodiment band guide vane streamline schematic diagram
Fig. 3 the utility model lampblack absorber spiral case water conservancy diversion fan blade schematic diagram
Another embodiment lampblack absorber spiral case front view of Fig. 4 the utility model
Another embodiment lampblack absorber spiral case right view of Fig. 5 the utility model
The another embodiment lampblack absorber of Fig. 6 the utility model spiral case front view
The another embodiment lampblack absorber of Fig. 7 the utility model spiral case upward view
The figure number explanation
1----volute body 2----snail tongue 3----inlet scoop
4----air outlet 5----projection 6----guide vane
The 7----oil smoke flows to
The specific embodiment
Specific embodiment one
A kind of improved lampblack absorber spiral case of the present utility model comprises volute body 1, snail tongue 2, air outlet 4 and inlet scoop 3.Volute body 1 is a spiral helicine thick disk body, and volute body 1 is to be that volute body 1 wrapper sheet and the left side plate of helical curve constitutes by the cross section, and left side plate is installed in volute body 1 wrapper sheet both sides and forms the helical form disk body.Volute body 1 side is provided with inlet scoop 3, and snail tongue 2 is to be positioned at volute body 1 spiral original position, and air outlet 4 is the openings that are positioned at place, volute body 1 spiral ultimate position.Volute body 1 also can be the helical form disk body of once-forming.At least the guide vane 6 of a slice circular arc is set in the inside of volute body 1, and guide vane 6 is positioned at the 30 ° of scopes in volute body 1 spiral ultimate position, and the shape of guide vane 6 is corresponding with volute body 1 spiral camber position.Because can changing oil smoke, guide vane 6 flows to 7 or air flow, make the mean wind speed of air outlet 4 bring up to 7.89 meter per seconds from 7.25 meter per seconds, wind speed uneven distribution degree is reduced to 0.06 from 0.075, like this, because even oil smoke is discharged the VELOCITY DISTRIBUTION of air outlet 4, reach the effect of certain reduction noise, determine to reduce at least noise 1 card through testing, improve exhaust air rate simultaneously, and then improved the lampblack absorber operating efficiency.Guide vane 6 can be multiple, can also be two, three or multi-disc more, and effect is more obvious like this.Wherein the spiral case air outlet 4 among Fig. 4 and Fig. 5 does not turn at place, spiral ultimate position, and the air outlet 4 of spiral case turns to 90 ° at place, helix ultimate position among Fig. 6 and Fig. 7, the lampblack absorber spiral case that the user can select diverse location air outlet 4 according to the position and the shape in air channel in actual applications, applicability is strong.
Improved lampblack absorber spiral case of the present utility model, guide vane 6 is the arc guide vane.The cross section of guide vane 6 is circular arc or parabola shaped or half elliptic or hyperbola, and the advantage of the guide vane 6 of arc is to make the better effects if that simple, even oil smoke is discharged air outlet 4.Wherein most preferred mode is to adopt circular arc.The radian measure beta of guide vane 6 is 50 °～80 °, and preferred radian measure beta is 65 °, and promptly an end of guide vane 6 is air outlet 4 initial 15 °, and the other end of guide vane 6 is air outlet 4 initial 80 °, and the effect of water conservancy diversion is best like this.One end of guide vane 6 is a round end, and the other end is a fine stern, and the advantage of this spline structure is accurate streamlined, and resistance is little.One end of water conservancy diversion fan blade round end is vertical with air outlet 4 directions, and an end of fine stern is parallel with air outlet 4 directions, discharges air outlet 4 after inlet scoop 3 enters oil smoke the spiral case flows to fine stern along an end of the round end of guide vane 6 a end.Oil smoke is evenly discharged spiral case under the effect of arc water conservancy diversion fan blade, reduced noise, has increased exhaust air rate.The consistency of thickness of the width of circular arc guide vane 6 and volute body 1, the guide vane 6 of She Zhiing can not produce the slit because of guide vane 6 width and volute body 1 variable thickness cause like this, reduces the effect of water conservancy diversion, does not reach even oil smoke and reduces the effect of noise.
Improved lampblack absorber spiral case of the present utility model can also be in volute body 1 spiral initial period Φ angle a projection 5 to be set, and the scope of Φ is arbitrarily angled in 0 °～45 ° scopes, and such projection 5 can reduce the mobile noise of air-flow in volute body 1.Oil smoke 3 enters in the volute body 1 and finally discharges outdoorly from the inlet scoop like this, but also can reduce noise.And to be in circular arc, hyperbola, parabola and the half elliptic any one all can in projection 5 cross section, so long as the cross section of projection 5 is that streamlined cross-section gets final product, fusiform design makes needs the oil smoke of discharge or the surperficial contact resistance minimum of air and streamlined projection 5, reduces power consumption.The position of the projection 5 preferably start angle of projection 5 is 5 °～10 °, and the end of a period angle of projection 5 is 35 °～40 °.In such position projection 5 is set, determines under the situation that does not improve power of motor through overtesting, the effect that reduces noise is best.Further preferred construction is that projection 5 height is 5～12mm, hole and bubble will occur if projection 5 is excessive, and it is bigger consume energy, if but protruding 5 little, then reduce the DeGrain of noise.Definite through testing, the height of projection 5 is in 5～12mm scope, and is best in the prerequisite decline low noise effect that does not have too big power consumption.
Lampblack absorber of the present utility model comprises frame, power supply, switching device and fan assembly.Fan assembly includes motor, impeller, spiral case and air channel, and impeller is positioned at spiral case, and the axle of impeller and motor is fixed together and rotates with the motor shaft rotation, and fan assembly is installed in the annex framework.Spiral case adopts the spiral case of said structure.Because the existence of guide vane 6 makes the exhaust air rate of lampblack absorber improve in the volute body 1, and then has reduced noise in the operating efficiency that has improved lampblack absorber.Because spiral case projection 5 is simple in structure, can effectively reduce noise, makes the operating noise of whole lampblack absorber reduce.
Claims (10)
1. improved lampblack absorber spiral case, comprise volute body, snail tongue, air outlet and air inlet, described volute body is the helical form disk body, described volute body side is provided with the inlet scoop, described snail tongue is positioned at described volute body spiral original position, and described air outlet is positioned at place, described volute body spiral ultimate position, it is characterized in that, be provided with a slice guide vane at least in 30 ° of scopes of described volute body spiral end of a period, described guide vane is corresponding with described volute body spiral camber position.
2. improved lampblack absorber spiral case according to claim 1 is characterized in that: described guide vane is the arc guide vane, and described guide vane radian is 50 °～80 °.
3. improved lampblack absorber spiral case according to claim 1 and 2 is characterized in that: an end of described guide vane is a round end, and the other end is a fine stern.
4. improved lampblack absorber spiral case according to claim 3 is characterized in that: an end of described guide vane round end is vertical with described air outlet direction, and an end of described guide vane fine stern is parallel with described air outlet direction.
5. improved lampblack absorber spiral case according to claim 1 and 2 is characterized in that: described guide vane cross section is circular arc or hyperbola or parabola shaped or half elliptic.
6. improved lampblack absorber spiral case according to claim 5 is characterized in that: the width of described circular arc guide vane and the consistency of thickness of described volute body.
7. improved lampblack absorber spiral case according to claim 1 and 2 is characterized in that: be provided with columnar projections in the initial 45 ° of scopes of described volute body.
8. improved lampblack absorber spiral case according to claim 7 is characterized in that: the cross section of described projection is circular arc or hyperbola or parabola shaped or half elliptic.
9. improved lampblack absorber spiral case according to claim 7 is characterized in that: described protruding start angle is 5 °～10 °, and described protruding end of a period angle is 35 °～40 °, and the height of described projection is 5～12mm.
10. lampblack absorber, comprise frame, power supply, switching device and fan assembly, described fan assembly includes motor, impeller, spiral case and air channel, and described impeller is positioned at described spiral case, it is characterized in that: described spiral case is the described spiral case of aforementioned any claim.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620120872 CN200943901Y (en) | 2006-07-05 | 2006-07-05 | Improved oil smoke absorber spiral casing and oil smoke absorber installed with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620120872 CN200943901Y (en) | 2006-07-05 | 2006-07-05 | Improved oil smoke absorber spiral casing and oil smoke absorber installed with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200943901Y true CN200943901Y (en) | 2007-09-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620120872 Expired - Fee Related CN200943901Y (en) | 2006-07-05 | 2006-07-05 | Improved oil smoke absorber spiral casing and oil smoke absorber installed with same |
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| CN (1) | CN200943901Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101457946B (en) * | 2007-12-11 | 2010-11-24 | 宁波方太厨具有限公司 | Bionic micropore noise reduction structure for smoke exhaust system |
| CN106524264A (en) * | 2016-12-27 | 2017-03-22 | 广东美的厨房电器制造有限公司 | Extractor hood |
| CN107270354A (en) * | 2017-07-31 | 2017-10-20 | 广东美的厨房电器制造有限公司 | Fan assembly and range hood |
| CN110608194A (en) * | 2019-09-16 | 2019-12-24 | 华中科技大学 | Centrifugal fan turns to spiral case |
| CN112354309A (en) * | 2020-10-16 | 2021-02-12 | 宁波方太厨具有限公司 | Oil smoke separator and range hood applying same |
-
2006
- 2006-07-05 CN CN 200620120872 patent/CN200943901Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101457946B (en) * | 2007-12-11 | 2010-11-24 | 宁波方太厨具有限公司 | Bionic micropore noise reduction structure for smoke exhaust system |
| CN106524264A (en) * | 2016-12-27 | 2017-03-22 | 广东美的厨房电器制造有限公司 | Extractor hood |
| CN109779976A (en) * | 2016-12-27 | 2019-05-21 | 广东美的厨房电器制造有限公司 | Spiral case and range hood |
| CN107270354A (en) * | 2017-07-31 | 2017-10-20 | 广东美的厨房电器制造有限公司 | Fan assembly and range hood |
| CN110608194A (en) * | 2019-09-16 | 2019-12-24 | 华中科技大学 | Centrifugal fan turns to spiral case |
| CN110608194B (en) * | 2019-09-16 | 2020-10-16 | 华中科技大学 | Centrifugal fan turns to spiral case |
| CN112354309A (en) * | 2020-10-16 | 2021-02-12 | 宁波方太厨具有限公司 | Oil smoke separator and range hood applying same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070905 Termination date: 20130705 |