CN201589321U - Novel range hood volute - Google Patents
Novel range hood volute Download PDFInfo
- Publication number
- CN201589321U CN201589321U CN2009202364327U CN200920236432U CN201589321U CN 201589321 U CN201589321 U CN 201589321U CN 2009202364327 U CN2009202364327 U CN 2009202364327U CN 200920236432 U CN200920236432 U CN 200920236432U CN 201589321 U CN201589321 U CN 201589321U
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- CN
- China
- Prior art keywords
- spiral case
- cigarette machine
- air outlet
- machine spiral
- noise reduction
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a novel range hood volute, which comprises a range hood volute body and a balanced noise-reducing board, wherein the balanced noise-reducing board is provided with two folding edges and a bottom board; the two folding edges and the bottom board form an angle of 90 degrees respectively; an air outlet of the range hood volute body is square; the balanced noise-reducing board is arranged in the air outlet of the range hood volute body; the two folding edges of the balanced noise-reducing board are fixedly with the air outlet of the range hood volute body respectively; and a certain included angle is formed between the bottom board of the balanced noise-reducing board and the air outlet of the range hood volute body. Compared with the prior art, the utility model can reduce the noise by two decibels, eliminate the original howling sound from the end and achieve better environment-friendly and energy-saving effects.
Description
Technical field
The utility model relates to the range hood field, specifically is a kind of cigarette machine spiral case.
Background technology
At present, the mode of its use of cigarette machine spiral case of China's range hood product manufacturing industry production has two kinds:
1, a transition arc that adopts multi-section circular arc to be spliced.Along the transition arc operation, because arc transition has some setbacks, the operation generation resistance to wind has influenced wind speed to wind, causes noise to strengthen in the spiral case wall.
2, adopt spiral of Archimedes.The wind speed operation is smooth and easy, but easily forms turbulent flow at air outlet, causes the traffic direction of wind inconsistent, noise occurs.
Through to the result of use analysis of above-mentioned cigarette machine spiral case: general cigarette machine spiral case air outlet blast is uneven, near the pressure minimum of snail tongue, is away from the regional blast of snail tongue and increases progressively state.Though can satisfy the GB requirement substantially, whole air quantity, blast, noise are still undesirable, for improving air quantity, blast, expanded motor horsepower, over-burden certainly will to cause motor, shortens motor service life, more increase noise, wasted energy, increased unsafe factor.The aggravation of noise has also endangered health, artificial pollution kitchen environment.
The utility model content
But the purpose of this utility model provides a kind of homogenize air-flow, effectively reduces the cigarette machine spiral case of noise.
The technical solution of the utility model is such: a kind of novel cigarette machine spiral case, comprise cigarette machine spiral case body, also comprise the balance and noise reduction plate, this balance and noise reduction plate is and has two flangings and base plate, this two flanging respectively therewith base plate become 90 °; The air outlet of above-mentioned cigarette machine spiral case body is a square, upper body 1 and balance noise reducing plate 2.
159 millimeters of balance and noise reduction plate 2 length overalls, wide 36 millimeters, be and have two flangings 21 and base plate 22, this two flanging 21 is 22 one-tenth 90 ° of base plates therewith respectively.Two flangings 21 are grown 8 millimeters, have the locating hole 211 of two φ 3.1.
The air outlet 11 of cigarette machine spiral case body 1 is a square, balance and noise reduction plate 2 is arranged in the air outlet 11 of cigarette machine spiral case body 1, two flangings 21 of balance and noise reduction plate 2 are spot-welded together by locating hole 211 respectively with the madial wall of cigarette machine spiral case air outlet 11, as shown in Figure 3, the base plate 22 of balance and noise reduction plate 2 becomes 89 ± 1 ° of inclinations angle with a side of the snail tongue 12 of the close cigarette machine spiral case body 1 of air outlet 11 horizontal planes of cigarette machine spiral case body 1.
After adopting such scheme, by balance and noise reduction plate 2 air outlet 11 blast of cigarette machine spiral case body 1 are divided into 2 zones in the utility model, original disorderly air-flow is adjusted into orderly arrangement, the blast in 2 zones is kept in balance, can be under the situation of nonintervention air-flow traffic direction, even distribution blast is at the condition decline low noise, the equilibrium partial pressure that guarantee suction.The utility model adopts gold angle homogenize air-flow, and balance and noise reduction plate 2 puts in the air outlet of cigarette machine spiral case body 1, by rectification, reaches airflow smooth, thereby reduces noise.Can make noise reduce by 2 decibels by the balance and noise reduction plate, eliminate original unusual howling, compared with prior art, the utility model can reach better environmental protection, energy-saving effect.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the structural representation of another angle of the utility model;
Fig. 3 is the partial sectional view of the air outlet vertical direction along cigarette machine spiral case body of the present utility model;
Fig. 4 is the structural representation of balance and noise reduction plate in the utility model.
The specific embodiment
A kind of novel cigarette machine spiral case of the present utility model, referring to figs. 1 to Fig. 4, it comprises cigarette machine spiral case body 1 and balance noise reducing plate 2.
159 millimeters of balance and noise reduction plate 2 length overalls, wide 36 millimeters, be and have two flangings 21 and base plate 22
Shape, this two flanging 21 be 22 one-tenth 90 ° of base plates therewith respectively.Two flangings 21 are grown 8 millimeters, have the locating hole 211 of two φ 3.1.
The air outlet 11 of cigarette machine spiral case body 1 is a square, balance and noise reduction plate 2 is arranged in the air outlet 11 of cigarette machine spiral case body 1, two flangings 21 of balance and noise reduction plate 2 are spot-welded together by locating hole 211 respectively with the madial wall of cigarette machine spiral case air outlet 11, as shown in Figure 3, the base plate 22 of balance and noise reduction plate 2 becomes 89 ± 1 ° of inclinations angle with a side of the snail tongue 12 of the close cigarette machine spiral case body 1 of air outlet 11 horizontal planes of cigarette machine spiral case body 1.
After adopting such scheme, by balance and noise reduction plate 2 air outlet 11 blast of cigarette machine spiral case body 1 are divided into 2 zones in the utility model, original disorderly air-flow is adjusted into orderly arrangement, the blast in 2 zones is kept in balance, can be under the situation of nonintervention air-flow traffic direction, even distribution blast is at the condition decline low noise, the equilibrium partial pressure that guarantee suction.The utility model adopts gold angle homogenize air-flow, and balance and noise reduction plate 2 puts in the air outlet of cigarette machine spiral case body 1, by rectification, reaches airflow smooth, thereby reduces noise.Can make noise reduce by 2 decibels by the balance and noise reduction plate, eliminate original unusual howling, compared with prior art, the utility model can reach better environmental protection, energy-saving effect.
Claims (3)
1. a novel cigarette machine spiral case comprises cigarette machine spiral case body, it is characterized in that: also comprise the balance and noise reduction plate, this balance and noise reduction plate is and has two flangings and base plate, this two flanging respectively therewith base plate become 90 °; The air outlet of above-mentioned cigarette machine spiral case body is a square, above-mentioned balance and noise reduction plate is arranged in the air outlet of above-mentioned cigarette machine spiral case body, two flangings of above-mentioned balance and noise reduction plate are fixed together with the air outlet of above-mentioned cigarette machine spiral case body respectively, and the air outlet horizontal plane of the base plate of above-mentioned balance and noise reduction plate and above-mentioned cigarette machine spiral case body has certain inclination angle.
2. a kind of novel cigarette machine spiral case according to claim 1, it is characterized in that: two flangings of above-mentioned balance and noise reduction plate offer locating hole respectively, and the air outlet of two flangings of above-mentioned balance and noise reduction plate and above-mentioned cigarette machine spiral case body is spot-welded together by this locating hole.
3. a kind of novel cigarette machine spiral case according to claim 1 is characterized in that: above-mentioned balance and noise reduction plate becomes 89 ± 1 ° of inclinations angle with a side of the snail tongue of the close above-mentioned cigarette machine spiral case body of air outlet horizontal plane of above-mentioned cigarette machine spiral case body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202364327U CN201589321U (en) | 2009-09-23 | 2009-09-23 | Novel range hood volute |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202364327U CN201589321U (en) | 2009-09-23 | 2009-09-23 | Novel range hood volute |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201589321U true CN201589321U (en) | 2010-09-22 |
Family
ID=42749105
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202364327U Expired - Fee Related CN201589321U (en) | 2009-09-23 | 2009-09-23 | Novel range hood volute |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201589321U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106524264A (en) * | 2016-12-27 | 2017-03-22 | 广东美的厨房电器制造有限公司 | Extractor hood |
-
2009
- 2009-09-23 CN CN2009202364327U patent/CN201589321U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100922 Termination date: 20140923 |
|
| EXPY | Termination of patent right or utility model |