CN202789739U - Fan of range hood - Google Patents
Fan of range hood Download PDFInfo
- Publication number
- CN202789739U CN202789739U CN 201220382016 CN201220382016U CN202789739U CN 202789739 U CN202789739 U CN 202789739U CN 201220382016 CN201220382016 CN 201220382016 CN 201220382016 U CN201220382016 U CN 201220382016U CN 202789739 U CN202789739 U CN 202789739U
- Authority
- CN
- China
- Prior art keywords
- volute
- spiral case
- snail tongue
- cooking
- impeller
- 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 - Lifetime
Links
- 241000237858 Gastropoda Species 0.000 claims description 18
- 239000003517 fume Substances 0.000 claims description 12
- 238000009434 installation Methods 0.000 description 4
- 230000007423 decrease Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 210000005182 tip of the tongue Anatomy 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses a range hood fan, its characterized in that: the volute comprises a volute, wherein an impeller is arranged in the volute, and a V-shaped volute tongue is arranged at an air outlet of the volute. The fan of the range hood is characterized in that the volute casings on two sides of the air outlet are respectively provided with a connecting mounting hole, two ends of the V-shaped volute tongue are respectively provided with an assembling hole, and the V-shaped volute tongue is fixed on the volute casings through screws arranged in the mounting holes and the assembling holes. The utility model aims at overcoming the weak point among the prior art, provide a simple structure, can keep effective noise reduction's range hood fan under the prerequisite of former pressure, efficiency and the amount of wind.
Description
Technical field
The utility model relates to a kind of cooking-fume exhauster blower.
Background technique
Existing forward multiple wing leaf centrifugal blower is because volume is little, and cost is low and be widely used among the household electric appliance.And at present household appliances most crucial be exactly energy consumption problem, this is just so that cigarette machine product pursuit blower fan under development realizes that as far as possible size is little, air quantity is large, noise is low, therefore its operation point is all designed mostly about the fan performance curve flex point, forms the state of fan delivery and noise balanced development.
The model utility content
The purpose of this utility model is in order to overcome deficiency of the prior art, to provide a kind of simple in structure, can keep effectively reducing under the prerequisite of former pressure, efficient and air quantity the cooking-fume exhauster blower of noise.
In order to achieve the above object, the utility model adopts following scheme:
A kind of cooking-fume exhauster blower is characterized in that: include spiral case, be provided with impeller in described spiral case, be provided with V-type snail tongue at the exhaust outlet place of described spiral case.
Aforesaid a kind of cooking-fume exhauster blower, it is characterized in that being respectively equipped with the connection hole at the spiral case of described exhaust outlet both sides, be respectively equipped with pilot hole at described V-type snail tongue two ends, described V-type snail tongue is fixed on the spiral case by the screw that is arranged in mounting hole and the pilot hole.
Aforesaid a kind of cooking-fume exhauster blower is characterized in that the effective length L of described V-type snail tongue equates with respect to impeller axial dimension L1 with described exhaust outlet.
Aforesaid a kind of cooking-fume exhauster blower, the Effective face width M1 that it is characterized in that described V-type snail tongue are that described exhaust outlet is with respect to 1/4th of impeller radial width.
In sum, the utility model with respect to its beneficial effect of prior art is:
The utility model is simple in structure, and cost is low; Fabrication and installation are convenient, need not former fan impeller structure is made amendment.After Experimental Comparison found that former design blower fan uses this V-type snail tongue spill or convex installation, blast, air quantity, efficient all can keep former design objective, and the blower fan sound quality is obviously improved, the about 1dB. of noise decline
Description of drawings
Fig. 1 is one of schematic representation of the present utility model;
Fig. 2 is two of schematic representation of the present utility model;
Fig. 3 is three of schematic representation of the present utility model:
Embodiment
Below in conjunction with description of drawings and embodiment the utility model is further described:
A kind of cooking-fume exhauster blower as shown in Figures 1 to 3 includes spiral case 1, is provided with impeller 2 in described spiral case 1, is provided with V-type snail tongue 4 at exhaust outlet 3 places of described spiral case 1.
The effective length L of the snail of V-type described in the utility model tongue 4 equates with respect to impeller 2 axial dimension L1 with described exhaust outlet 3.The Effective face width M1 of described V-type snail tongue 4 is that described exhaust outlet 3 is with respect to 1/4th of impeller 2 radial width.Snail the tip of the tongue end radius R 1 is 1:3 with the ratio of large end radius R 2, and the middle part is by the smoothed curve transition, and the ratio at two tilt angle on V-type limit is about 0.6078.
The utility model is simple in structure, and cost is low; Fabrication and installation are convenient, need not former fan impeller structure is made amendment.After Experimental Comparison found that former design blower fan uses this V-type snail tongue spill or convex installation, blast, air quantity, efficient all can keep former design objective, and the blower fan sound quality is obviously improved, the about 1dB of noise decline.
Claims (4)
1. a cooking-fume exhauster blower is characterized in that: include spiral case (1), be provided with impeller (2) in described spiral case (1), locate to be provided with V-type snail tongue (4) at the exhaust outlet (3) of described spiral case (1).
2. a kind of cooking-fume exhauster blower according to claim 1, it is characterized in that being respectively equipped with connection hole (5) at the spiral case (1) of described exhaust outlet (3) both sides, be respectively equipped with pilot hole (6) at described V-type snail tongue (4) two ends, described V-type snail tongue (4) is fixed on the spiral case (1) by the screw that is arranged in mounting hole (5) and the pilot hole (6).
3. a kind of cooking-fume exhauster blower according to claim 1 is characterized in that the effective length L of described V-type snail tongue (4) equates with respect to impeller (2) axial dimension L1 with described exhaust outlet (3).
4. a kind of cooking-fume exhauster blower according to claim 1, the Effective face width M1 that it is characterized in that described V-type snail tongue (4) is that described exhaust outlet (3) is with respect to 1/4th of impeller (2) radial width.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220382016 CN202789739U (en) | 2012-08-02 | 2012-08-02 | Fan of range hood |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220382016 CN202789739U (en) | 2012-08-02 | 2012-08-02 | Fan of range hood |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202789739U true CN202789739U (en) | 2013-03-13 |
Family
ID=47817007
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220382016 Expired - Lifetime CN202789739U (en) | 2012-08-02 | 2012-08-02 | Fan of range hood |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202789739U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104454647A (en) * | 2013-09-18 | 2015-03-25 | 广东美的厨房电器制造有限公司 | Fan used for range hood and range hood with same |
| CN106855062A (en) * | 2016-12-15 | 2017-06-16 | 东华大学 | A kind of varying depth noise reduction spiral tougue and multi-wing centrifugal fan |
| CN108612674A (en) * | 2018-03-22 | 2018-10-02 | 海信科龙电器股份有限公司 | Centrifugal fan and air conditioner |
| CN109973433A (en) * | 2019-02-27 | 2019-07-05 | 华中科技大学 | A kind of spiral case with concave incline tongue structure |
| CN110067775A (en) * | 2018-01-24 | 2019-07-30 | 青岛海尔智慧厨房电器有限公司 | Volute tongue structure, fan volute and range hood |
| CN110273861A (en) * | 2019-05-24 | 2019-09-24 | 浙江工业大学 | A kind of auxiliary thermal of centrifugal blower volute tongue used for range hood |
-
2012
- 2012-08-02 CN CN 201220382016 patent/CN202789739U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104454647A (en) * | 2013-09-18 | 2015-03-25 | 广东美的厨房电器制造有限公司 | Fan used for range hood and range hood with same |
| CN104454647B (en) * | 2013-09-18 | 2017-08-04 | 广东美的厨房电器制造有限公司 | For the blower fan of range hood and the range hood with it |
| CN106855062A (en) * | 2016-12-15 | 2017-06-16 | 东华大学 | A kind of varying depth noise reduction spiral tougue and multi-wing centrifugal fan |
| CN110067775A (en) * | 2018-01-24 | 2019-07-30 | 青岛海尔智慧厨房电器有限公司 | Volute tongue structure, fan volute and range hood |
| CN108612674A (en) * | 2018-03-22 | 2018-10-02 | 海信科龙电器股份有限公司 | Centrifugal fan and air conditioner |
| CN109973433A (en) * | 2019-02-27 | 2019-07-05 | 华中科技大学 | A kind of spiral case with concave incline tongue structure |
| CN110273861A (en) * | 2019-05-24 | 2019-09-24 | 浙江工业大学 | A kind of auxiliary thermal of centrifugal blower volute tongue used for range hood |
| CN110273861B (en) * | 2019-05-24 | 2024-05-07 | 浙江工业大学 | Centrifugal fan volute tongue auxiliary heating device for range hood |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: VATTI CO., LTD. Free format text: FORMER NAME: ZHONGSHAN CITY HUADI COMBUSTION UTENSILS CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 528400 Guangdong Province, Zhongshan City Xiaolan Industrial Avenue South Road No. 1 Patentee after: VATTI Co.,Ltd. Address before: 528400 Guangdong Province, Zhongshan City Xiaolan Industrial Avenue South Road No. 1 Patentee before: ZHONGSHAN VATTI GAS APPLIANCE STOCK Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130313 |