CN201463047U - Air duct of range hood - Google Patents
Air duct of range hood Download PDFInfo
- Publication number
- CN201463047U CN201463047U CN2009201199271U CN200920119927U CN201463047U CN 201463047 U CN201463047 U CN 201463047U CN 2009201199271 U CN2009201199271 U CN 2009201199271U CN 200920119927 U CN200920119927 U CN 200920119927U CN 201463047 U CN201463047 U CN 201463047U
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- CN
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- Prior art keywords
- range hood
- air outlet
- air
- duct
- noise
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- 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.)
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Abstract
The utility model relates to an air duct of a range hood, which belongs to a component of a range hood. At present, an air duct of a range hood which is fine in exhaust and absorption effect and generates relatively low noise during exhaust and absorption processes dose not exist. The air duct comprises a volute casing, an air outlet duct and a volute tongue are arranged inside the volute casing, the air outlet duct is located inside the volute casing, and the volute tongue is located at the edge of an air outlet of the air outlet duct. The air duct of a range hood is characterized by further comprising a noise reduction board, and the noise reduction board is fixed on the inner wall of the air outlet of the air outlet duct and located opposite to the volute tongue. When the air duct operates, air flow can be outputted from the air outlet smoothly, thereby greatly improving properties of the range hood. The air duct of a range hood is reasonable in structural design, high in working efficiency and low in noise when outputting airflow.
Description
Technical field
The utility model relates to a kind of range hood air channel, relates in particular to the range hood air channel that road junction, a kind of exhaust passage inwall is provided with noise reducing plate, belongs to parts in the range hood.
Background technology
The function of suction is realized in range hood range hood air channel commonly used at present, and spiral case is the critical piece in the range hood air channel, usually the spiral case in the range hood air channel comprises volute body, snail tongue, exhaust passage, air outlet and inlet scoop, volute body is the helical form disk body, the volute body side is provided with the inlet scoop, the exhaust passage is positioned at volute body, and the snail tongue is positioned at volute body spiral original position, and just the snail tongue is positioned on the limit of air outlet.This class range hood is when operation, after air-flow enters in the exhaust passage from the inlet scoop, export from air outlet again, because the snail tongue is positioned on the air outlet limit, when air-flow tends to send bigger noise when air outlet is exported, especially when the air-flow transporting velocity was very fast, the noise that air-flow produces when air outlet is exported was bigger, thereby reduced the overall performance of range hood, influenced people's normal life.
At present also there are some to be used to reduce the air channel of range hood noise, as the day for announcing be on 07 18th, 2007, notification number is in the Chinese patent of CN2924364, disclose a kind of range hood spiral case and the range hood of this spiral case has been installed, reduce the noise that spiral case produces by the mode that in 45 ° of scopes of volute body spiral initial period, is provided with projection in this patent, but this method brings certain difficulty not only for the manufacturing of spiral case, and because bossing is in volute body inside, and the noise that volute body produced mainly is the air outlet in the air channel, so this patent does not reach the effect of good reduction noise.
The device that also has at present some to be used to reduce the noise that air-flow produced when discharging the range hood air outlet, but the structure of these devices is comparatively complicated usually, makes that the production cost of range hood is higher.
The utility model content
The purpose of this utility model is to overcome above shortcomings in the prior art, and a kind of reasonable in design is provided, high efficiency, the range hood air channel of low noise during air-flow output.
The technical scheme in the invention for solving the above technical problem is: this range hood air channel comprises volute body, be provided with exhaust passage and snail tongue in the described volute body, described exhaust passage is positioned at volute body, described snail tongue is positioned on the air outlet limit of exhaust passage, its characteristics are: also comprise noise reducing plate, described noise reducing plate is fixed on the air outlet inwall of exhaust passage, and this noise reducing plate is positioned at the opposite of snail tongue.Make the utility model in when operation thus, air-flow can be swimmingly from air outlet output, and do not have noise to produce substantially during air-flow output, has promoted the performance of range hood greatly.
Noise reducing plate described in the utility model be shaped as the V font.The noise that makes generation when the utility model can better be eliminated air-flow output thus.
The air outlet of exhaust passage described in the utility model is shaped as square.
The utility model compared with prior art, have the following advantages and effect: the air outlet inwall of the utility model exhaust passage is fixed with noise reducing plate, noise reducing plate is positioned at the opposite of snail tongue, not only can improve operating efficiency of the present utility model, and can eliminate the noise that air-flow produced that transfers out from air outlet greatly, thereby promoted the overall performance of range hood.
The utility model is simple in structure, by the noise that the air outlet inwall on snail tongue opposite is produced when fixedly the mode of noise reducing plate reduces the discharge air-flow, has simplified the structure of denoising device greatly, has reduced production cost.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment;
Fig. 2 is the structural representation after the A-A face is analysed and observe among Fig. 1.
The specific embodiment
The utility model is described in further detail below in conjunction with accompanying drawing and by embodiment.
Embodiment:
Referring to Fig. 1 and Fig. 2, the range hood air channel in the present embodiment comprises volute body 1 and noise reducing plate 2, wherein volute body 1 be shaped as the helical form disk body, in volute body 1, be provided with snail tongue 3 and exhaust passage 4.
Range hood air channel in the present embodiment normally is installed in the range hood uses, and outer gas stream enters in the exhaust passage 4 from air inlet 5, discharges from air outlet 6 again.Because noise reducing plate 2 is fixed on the inwall of air outlet 6, and noise reducing plate 2 and snail tongue 3 lay respectively at the both sides of air outlet 6, makes that the range hood air road in the present embodiment has the function that reduces noise, thereby improved the performance in range hood air channel greatly.
The utility model can reduce process air outlet 6 and the noise that air-flow produced of discharge greatly, has promoted the overall performance in range hood air channel.The utility model is simple in structure, and production cost is low, high efficiency, and market prospects are wide.
Above content described in this specification only is to the explanation of the utility model structure example.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment; only otherwise depart from structure of the present utility model or surmount the defined scope of these claims, all should belong to protection domain of the present utility model.
Claims (3)
1. range hood air channel, comprise volute body, be provided with exhaust passage and snail tongue in the described volute body, described exhaust passage is positioned at volute body, described snail tongue is positioned on the air outlet limit of exhaust passage, it is characterized in that: also comprise noise reducing plate, described noise reducing plate is fixed on the air outlet inwall of exhaust passage, and this noise reducing plate is positioned at the opposite of snail tongue.
2. range hood according to claim 1 air channel is characterized in that: described noise reducing plate be shaped as the V font.
3. range hood according to claim 1 and 2 air channel is characterized in that: the air outlet of described exhaust passage is shaped as square.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201199271U CN201463047U (en) | 2009-05-18 | 2009-05-18 | Air duct of range hood |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201199271U CN201463047U (en) | 2009-05-18 | 2009-05-18 | Air duct of range hood |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201463047U true CN201463047U (en) | 2010-05-12 |
Family
ID=42390398
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201199271U Expired - Fee Related CN201463047U (en) | 2009-05-18 | 2009-05-18 | Air duct of range hood |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201463047U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108240649A (en) * | 2017-10-31 | 2018-07-03 | 宁波方太厨具有限公司 | A kind of frequency conversion noise reduction outlet housing of range hood |
| CN108240650A (en) * | 2017-10-31 | 2018-07-03 | 宁波方太厨具有限公司 | A kind of frequency conversion noise reduction outlet housing of range hood |
-
2009
- 2009-05-18 CN CN2009201199271U patent/CN201463047U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108240649A (en) * | 2017-10-31 | 2018-07-03 | 宁波方太厨具有限公司 | A kind of frequency conversion noise reduction outlet housing of range hood |
| CN108240650A (en) * | 2017-10-31 | 2018-07-03 | 宁波方太厨具有限公司 | A kind of frequency conversion noise reduction outlet housing of range hood |
| CN108240649B (en) * | 2017-10-31 | 2024-01-16 | 宁波方太厨具有限公司 | Variable-frequency noise-reduction air outlet cover of range hood |
| CN108240650B (en) * | 2017-10-31 | 2024-01-16 | 宁波方太厨具有限公司 | Variable-frequency noise-reduction air outlet cover of 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: 20100512 Termination date: 20170518 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |