CN103512065A - Ventilator and spiral case thereof - Google Patents
Ventilator and spiral case thereof Download PDFInfo
- Publication number
- CN103512065A CN103512065A CN201210210991.7A CN201210210991A CN103512065A CN 103512065 A CN103512065 A CN 103512065A CN 201210210991 A CN201210210991 A CN 201210210991A CN 103512065 A CN103512065 A CN 103512065A
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- spiral case
- line segment
- curve
- front apron
- coaming plate
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Abstract
The invention provides a ventilator and a spiral case thereof. The spiral case for the ventilator comprises an air outlet, a front baffle, a rear baffle and an enclosing plate, wherein the front baffle and the rear baffle are symmetrically arranged on both sides of the enclosing plate, the front baffle and/or the rear baffle is provided with an air inlet hole, the enclosing plate is provided with a volute tongue, the enclosing plate edge profile connected with the front baffle comprises a segment of curve CD adopting a logarithmic spiral structure, one end point D of the curve CD is connected with the air outlet, and the other end point C of the curve CD is connected with the volute tongue. With a lot of trials, results show that: with the spiral case structure, airflow is smooth, energy loss of the fan system can be significantly reduced so as to reduce noise to a certain extent, and air volume can be significantly increased.
Description
[technical field]
The present invention relates to smoke exhaust ventilator field, relate in particular to the spiral case for smoke exhaust ventilator.
[background technology]
Range hood claims again smoke exhaust ventilator, is a kind of kitchen appliance that purifies kitchen environment.It is arranged on the top of cooking stove in kitchen, the harmful oil smoke producing can be taken away rapidly in cooking process, purifies the air of a room, and has gas defence, explosion-proof safety guarantee effect.
A structural representation for the existing spiral case for smoke exhaust ventilator, as shown in Figure 2, this spiral case comprises front apron 4, backboard 3 and coaming plate 2.Front apron 4, backboard 3 and coaming plate 2 threes' top surrounds an air outlet 5 jointly, and these air outlet 5 places are provided with flange 6, and this flange 6 is for being fixed on described spiral case the housing of smoke exhaust ventilator.One impeller 1 is arranged in this spiral case.According to the situation of Chinese family kitchen heavy oil cigarette, in the urgent need to the smoke exhaust ventilator of Wind Volume and low noise.But the smoke exhaust ventilator of selling in the market, can only take in two indexs of Wind Volume and low noise mostly into account, cannot take into account these two important indexs of Wind Volume and low noise.In addition, in Fig. 2, the P place of coaming plate 2, is easy to occur energy loss, urgently improves.
Unless have sufficient evidence support, otherwise prior art described here not meaning that admitted that these prior aries those of ordinary skill for the field that the invention relates to before the application's the applying date is known.
[summary of the invention]
Main purpose of the present invention is for above-described at least one technical problem, proposes a kind of novel spiral case for smoke exhaust ventilator.
The spiral case for smoke exhaust ventilator that the present invention proposes, comprise air outlet, front apron, backboard and coaming plate, described front apron and backboard are symmetricly set in the both sides of described coaming plate, on described front apron and/or backboard, be provided with fresh air inlet, described coaming plate is provided with snail tongue, the edge contour being connected with described front apron of described coaming plate comprises one section of curve C D that adopts logatithmic spiral structure, and an end points D of described curve C D is connected in described air outlet.Through a large amount of tests, find, adopt this worm frame, air-flow is more smooth and easy, can significantly reduce the energy loss of blower fan system, and then can reduce to a certain extent noise.In addition, adopt this worm frame, also can enlarge markedly air quantity.What is particularly worth mentioning is that, adopt this worm frame, also can effectively overcome existing spiral case in the energy loss problem at P place.
Optionally, the edge contour being connected with described front apron of described snail tongue is a circular arc BC.Like this, contribute to make air-flow more smooth and easy.
Optionally, described curve C D and circular arc BC are tangential on a C.Like this, contribute to make air-flow more smooth and easy.
Optionally, another end points C of described curve C D is connected in described snail tongue.Through a large amount of tests, find, adopt this worm frame, air-flow is more smooth and easy, can significantly reduce the energy loss of blower fan system, and then can reduce to a certain extent noise.In addition, adopt this worm frame, can further increase air quantity.
Optionally, the edge contour being connected with described front apron of described coaming plate comprises a line segment AB, and a terminal A of described line segment AB is connected in described air outlet, and another terminal B of described line segment AB is connected in described snail tongue.
Optionally, between described line segment AB and horizontal line, be an angle α, 50 °≤α≤85 °.
Optionally, α=60 °.
Optionally, described line segment AB is parallel to the tangent line of crossing some D of described curve C D.Like this, contribute to make air-flow more smooth and easy.
Optionally, line segment AD is parallel to horizontal line.
Optionally, the edge contour being connected with described front apron of described coaming plate comprises a line segment AB, and a terminal A of described line segment AB is connected in described air outlet, and another terminal B of described line segment AB is connected in described snail tongue; Described line segment AB and circular arc BC are tangential on a B.Like this, contribute to make air-flow more smooth and easy.
The present invention also proposes a kind of smoke exhaust ventilator that is provided with the spiral case as described in above any one.Through a large amount of tests, find, adopt this worm frame, air-flow is more smooth and easy, can significantly reduce the energy loss of blower fan system, and then can reduce to a certain extent noise.In addition, adopt this worm frame, also can enlarge markedly air quantity.What is particularly worth mentioning is that, adopt this worm frame, also can effectively overcome existing spiral case in the energy loss problem at P place.
Foregoing invention content of the present invention is not for describing all possible embodiments of the present invention.Whole application Zhong， many places provide guidance by enumerating example, and these examples can be for various feasible combinations.
[accompanying drawing explanation]
The following drawings only schematically illustrates and explains the present invention, not delimit the scope of the invention, wherein:
Fig. 1 is the structural representation of the edge contour being connected with front apron of the coaming plate of the spiral case embodiment for smoke exhaust ventilator that proposes of the present invention;
Fig. 2 is a kind of structural representation of the existing spiral case for smoke exhaust ventilator.
[specific embodiment]
For making object of the present invention, scheme and beneficial effect more cheer and bright, below in conjunction with accompanying drawing and preferred embodiment, the invention will be further described.
A kind of spiral case embodiment for smoke exhaust ventilator that the present invention proposes, comprises front apron, backboard and coaming plate, and front apron and backboard are symmetricly set in the both sides of coaming plate, on front apron and backboard, are respectively arranged with fresh air inlet.Coaming plate is provided with snail tongue.Front apron, backboard and coaming plate three's top surrounds an air outlet jointly.Oil smoke, from fresh air inlet flows into, flows out from air outlet.
The edge contour being connected with front apron of coaming plate is as shown in solid line part in Fig. 1, and this edge contour is an inferior line segment AB, a circular arc BC and the one section of curve C D that adopts logatithmic spiral structure of comprising along clockwise direction.
An end points D of curve C D is connected in air outlet, and another end points C of curve C D is connected in snail tongue.Need to be explained, curve C D is only a part for above-mentioned logatithmic spiral, in figure, respectively from putting C and the level and smooth extended two sections of curves that are shown in broken lines of some D, is also the part of this logatithmic spiral.
In fact, the edge contour being connected with front apron of snail tongue is above-mentioned circular arc BC.Curve C D and circular arc BC are tangential on a C.
A terminal A of line segment AB is connected in air outlet, and another terminal B of line segment AB is connected in snail tongue.Line segment AB and circular arc BC are tangential on a B.Between line segment AB and horizontal line, be an angle α, α=60 °.
The line segment AD that an A and electric D be end points of take is parallel to horizontal line.
Because front apron and backboard are symmetricly set in the both sides of coaming plate, thereby the edge contour being connected with backboard of coaming plate and the edge contour being connected with front apron of above-mentioned coaming plate are symmetrical.
Below be only the preferred embodiments of the present invention, some technical characterictic is modified or replaced the embodiment that can also obtain other.As, can be also that fresh air inlet is only set on front apron, or fresh air inlet is only set on backboard.For another example, line segment AB also can be set to be parallel to the tangent line of crossing some D of curve C D.For another example, line segment AB also can replace with curve or other feasible lines.For another example, circular arc BC also can replace with other feasible lines.
Need annotatedly, the present invention should not be understood to only limit to embodiment described above, but should be understood to cover the claims in the present invention in conjunction with description disclosure definite all possible performance.Therefore, every content that does not depart from technical solution of the present invention, any simple modification, equivalent variations and the modification above embodiment done according to technical spirit of the present invention, all belong to the protection domain of technical solution of the present invention.Special needs to be pointed out is, based on any bad application that changes of the present invention, still belong to the protection domain of technical solution of the present invention.
Claims (11)
1. the spiral case for smoke exhaust ventilator, comprise air outlet, front apron, backboard and coaming plate, described front apron and backboard are symmetricly set in the both sides of described coaming plate, on described front apron and/or backboard, are provided with fresh air inlet, described coaming plate is provided with snail tongue, it is characterized in that:
The edge contour being connected with described front apron of described coaming plate comprises one section of curve C D that adopts logatithmic spiral structure, and an end points D of described curve C D is connected in described air outlet.
2. spiral case according to claim 1, is characterized in that:
The edge contour being connected with described front apron of described snail tongue is a circular arc BC.
3. spiral case according to claim 2, is characterized in that:
Described curve C D and circular arc BC are tangential on a C.
4. spiral case according to claim 1, is characterized in that:
Another end points C of described curve C D is connected in described snail tongue.
5. according to the spiral case described in any one in claim 1 to 4, it is characterized in that:
The edge contour being connected with described front apron of described coaming plate comprises a line segment AB, and a terminal A of described line segment AB is connected in described air outlet, and another terminal B of described line segment AB is connected in described snail tongue.
6. spiral case according to claim 5, is characterized in that:
Between described line segment AB and horizontal line, be an angle α, 50 °≤α≤85 °.
7. spiral case according to claim 6, is characterized in that:
α＝60°。
8. spiral case according to claim 5, is characterized in that:
Described line segment AB is parallel to the tangent line of crossing some D of described curve C D.
9. spiral case according to claim 5, is characterized in that:
Line segment AD is parallel to horizontal line.
10. spiral case according to claim 2, is characterized in that:
The edge contour being connected with described front apron of described coaming plate comprises a line segment AB, and a terminal A of described line segment AB is connected in described air outlet, and another terminal B of described line segment AB is connected in described snail tongue;
Described line segment AB and circular arc BC are tangential on a B.
11. 1 kinds of smoke exhaust ventilators that are provided with the spiral case as described in above any one claim.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210210991.7A CN103512065A (en) | 2012-06-21 | 2012-06-21 | Ventilator and spiral case thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210210991.7A CN103512065A (en) | 2012-06-21 | 2012-06-21 | Ventilator and spiral case thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103512065A true CN103512065A (en) | 2014-01-15 |
Family
ID=49895206
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210210991.7A Pending CN103512065A (en) | 2012-06-21 | 2012-06-21 | Ventilator and spiral case thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103512065A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104005996A (en) * | 2014-05-13 | 2014-08-27 | 珠海格力电器股份有限公司 | Volute, centrifugal fan volute and range hood |
| US20230151820A1 (en) * | 2020-10-20 | 2023-05-18 | Ningbo Fotile Kitchen Ware Co., Ltd. | Range hood |
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| CN1282844A (en) * | 1999-07-28 | 2001-02-07 | 三星电子株式会社 | Centrifugal blower |
| US20020025253A1 (en) * | 2000-08-04 | 2002-02-28 | Yukio Ozeki | Centrifugal multiblade blower |
| CN2491735Y (en) * | 2001-05-07 | 2002-05-15 | 宁波方太厨具有限公司 | Fan spiral casing structure of cooker hood |
| CN2874089Y (en) * | 2006-01-07 | 2007-02-28 | 海尔集团公司 | Fan volute of side sucking type fume exhaust fan |
| JP2008133761A (en) * | 2006-11-28 | 2008-06-12 | Daikin Ind Ltd | Centrifugal multi-blade blower |
| JP2008138643A (en) * | 2006-12-05 | 2008-06-19 | Valeo Thermal Systems Japan Corp | Blower unit |
| CN201202691Y (en) * | 2008-04-24 | 2009-03-04 | 宁波方太厨具有限公司 | Draught fan volute of cooking fume exhauster |
| US7632067B2 (en) * | 2004-11-15 | 2009-12-15 | Hoeffken Russell W | Blower housing and method of manufacture |
| US20100014965A1 (en) * | 2008-07-18 | 2010-01-21 | Denso Corporation | Centrifugal type blower |
| CN102182707A (en) * | 2011-05-09 | 2011-09-14 | 美的集团有限公司 | Centrifugal fan for range hood and volute profile generation method thereof |
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2012
- 2012-06-21 CN CN201210210991.7A patent/CN103512065A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1282844A (en) * | 1999-07-28 | 2001-02-07 | 三星电子株式会社 | Centrifugal blower |
| US20020025253A1 (en) * | 2000-08-04 | 2002-02-28 | Yukio Ozeki | Centrifugal multiblade blower |
| CN2491735Y (en) * | 2001-05-07 | 2002-05-15 | 宁波方太厨具有限公司 | Fan spiral casing structure of cooker hood |
| US7632067B2 (en) * | 2004-11-15 | 2009-12-15 | Hoeffken Russell W | Blower housing and method of manufacture |
| CN2874089Y (en) * | 2006-01-07 | 2007-02-28 | 海尔集团公司 | Fan volute of side sucking type fume exhaust fan |
| JP2008133761A (en) * | 2006-11-28 | 2008-06-12 | Daikin Ind Ltd | Centrifugal multi-blade blower |
| JP2008138643A (en) * | 2006-12-05 | 2008-06-19 | Valeo Thermal Systems Japan Corp | Blower unit |
| CN201202691Y (en) * | 2008-04-24 | 2009-03-04 | 宁波方太厨具有限公司 | Draught fan volute of cooking fume exhauster |
| US20100014965A1 (en) * | 2008-07-18 | 2010-01-21 | Denso Corporation | Centrifugal type blower |
| CN102182707A (en) * | 2011-05-09 | 2011-09-14 | 美的集团有限公司 | Centrifugal fan for range hood and volute profile generation method thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104005996A (en) * | 2014-05-13 | 2014-08-27 | 珠海格力电器股份有限公司 | Volute, centrifugal fan volute and range hood |
| US20230151820A1 (en) * | 2020-10-20 | 2023-05-18 | Ningbo Fotile Kitchen Ware Co., Ltd. | Range hood |
| US11835060B2 (en) * | 2020-10-20 | 2023-12-05 | Ningbo Fotile Kitchen Ware Co., Ltd. | Range hood |
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