CN105545771A - Centrifugal fan module used for range hood - Google Patents
Centrifugal fan module used for range hood Download PDFInfo
- Publication number
- CN105545771A CN105545771A CN201610063352.0A CN201610063352A CN105545771A CN 105545771 A CN105545771 A CN 105545771A CN 201610063352 A CN201610063352 A CN 201610063352A CN 105545771 A CN105545771 A CN 105545771A
- Authority
- CN
- China
- Prior art keywords
- volute
- centrifugal fan
- fan module
- upper volute
- smoke
- 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.)
- Pending
Links
- 239000000779 smoke Substances 0.000 claims abstract description 34
- 230000000391 smoking effect Effects 0.000 claims description 24
- 230000008878 coupling Effects 0.000 claims description 11
- 238000010168 coupling process Methods 0.000 claims description 11
- 238000005859 coupling reaction Methods 0.000 claims description 11
- 239000004568 cement Substances 0.000 claims description 6
- 210000002435 tendon Anatomy 0.000 claims description 6
- 238000000465 moulding Methods 0.000 claims description 4
- 239000011324 bead Substances 0.000 claims description 3
- 238000005452 bending Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 4
- 239000003517 fume Substances 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000010411 cooking Methods 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000002955 isolation Methods 0.000 abstract 4
- 210000001503 joint Anatomy 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 13
- 238000000034 method Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 2
- 238000005119 centrifugation Methods 0.000 description 2
- 235000019504 cigarettes Nutrition 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 239000000295 fuel oil Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 241000883990 Flabellum Species 0.000 description 1
- 230000037237 body shape Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000035807 sensation Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/06—Units comprising pumps and their driving means the pump being electrically driven
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
- F04D29/4226—Fan casings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/44—Fluid-guiding means, e.g. diffusers
- F04D29/441—Fluid-guiding means, e.g. diffusers especially adapted for elastic fluid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/60—Mounting; Assembling; Disassembling
- F04D29/62—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps
- F04D29/624—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
- F04D29/626—Mounting or removal of fans
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C15/00—Details
- F24C15/20—Removing cooking fumes
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Ventilation (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
A centrifugal fan module used for a range hood comprises an upper volute and a lower volute which are connected in a butt joint manner and installed together in a buckled manner. A smoke outlet is formed in the top end of the upper volute. A smoke suction opening is formed in the lower end of the lower volute. A support is arranged at the smoke outlet of the upper volute and provided with a drive motor. A smoke suction turbine is installed on a main shaft of the drive motor. An isolation cover is arranged in the upper volute. The isolation cover is connected with the upper volute through a plurality of connection ribs on the outer surface of the isolation cover. An air guide way is formed between the isolation cover and the upper volute. The air guide way penetrates the smoke outlet and the lower volute. The centrifugal fan module has the beneficial effects that the structure is simple, assembling is convenient, the production cost is low, and the market competitiveness is improved; a turbine fan is adopted for providing drive power, the smoke suction amount is large, and the working noise is small; by means of the unique volute design, the smoke suction opening and the smoke outlet can be located on the same axis, coaxial smoke discharge is achieved, and the centrifugal fan module can be conveniently assembled with the ceiling range hood for use; and a good oil removal effect can be achieved when cooking fume strikes the volutes after being thrown out of the turbine, and the oil content in discharged smoke is ensured.
Description
Technical field
The present invention relates to a kind of range hood, specifically a kind of centrifugal fan module of kitchen ventilator.
Background technique
At present, conventional extraction hood that is that every household uses and that sell on the market is all centrifugal cooking fume exhausters, and namely air-flow " is thrown out " through centrifugal blade radial direction.Like this, air-flow has impact in spiral case, especially traditional cross flow fan formula range hood, and permeate gas stream impeller flows in spiral case, and repeat impact impeller, flue or spiral case, therefore air-flow causes larger noise in spiral case.Have again, the noise of motor rotation and parts vibrations noise superposition after, overall noise reach self more than 80 decibels, this is higher than the NBS 68 decibels of China's range hood noise, therefore this also can the normal life of severe jamming user and user's surrounding neighbours, makes troubles to the life of people.In addition, in cross flow fan formula range hood, because air-flow is forced to turn back in spiral case, therefore loss of pressure head is comparatively large, and efficiency is lower, and flow is little.
Simultaneously, existing kitchen ventilator divides by type can be divided into top sucking type and side-extract type, its moulding thousand times without exception, larger improvement is not had through long-term development successor, therefore its appearance and modeling has been difficult to the sensation of finding everything fresh and new to people, and how createing novel surface structure becomes the key factor that numerous manufacturer promotes the market competitiveness.In addition, existing spiral case body shape is roughly in " 6 " font, and therefore this spiral case is when being applicable to top range hood, and the smoke exhaust port of spiral case is all generally the eccentric occlusion position being arranged on kitchen ventilator top, cause the smoke-ejecting pipe of kitchen ventilator to be installed to bother very much, be difficult to assemble with the equipment such as cabinet use.And current when being applicable to side-suction type range hood, the air sucking mouth of spiral case is that inclination installing is put, and makes kitchen ventilator can not directly act on oil smoke in use, causes its smoking ability to have certain reduction, is therefore necessary to be improved further existing kitchen ventilator.
summary of the invention
The object of the invention is the shortcoming existed to overcome prior art, provide a kind of structure simple, operating noise is low, the centrifugal fan module of a kind of kitchen ventilator that smoking ability is strong.
The present invention seeks to realize with the following methods: a kind of centrifugal fan module of kitchen ventilator, it is characterized in that: it comprises upper volute and lower spiral case, upper and lower spiral case mutually docks fastening and is installed together, the top of upper volute is provided with smoke exhaust port, the lower end of lower spiral case is provided with smoking port, the smoke exhaust port of upper volute be provided with support and drive motor be installed thereon, the main shaft of drive motor is provided with smoking turbine, the inside of upper volute is provided with shielding can, shielding can is connected with upper volute by some connecting tendons of its outer surface, wind guide channel is formed between shielding can and upper volute, the through smoke exhaust port of wind guide channel and lower spiral case.
The upper lever stopper of described smoking turbine and the mutually concordant setting of lower bead of shielding can.
The upper-end surface of described smoking turbine is provided with connecting sleeve, in being axially provided with some grades of locating fasteners on the cylinder of connecting sleeve, is arranged on boss holding on drive motor main shaft at this locating fastener internal fixtion.
The internal surface of described connecting sleeve arranges bossed shaft coupling block, in shaft coupling block interts and is arranged on electric machine main shaft shaft coupling groove.
Described upper volute and lower spiral case entirety are in hemispherical, overall by plastic cement material molding and forming.
Described connecting tendon is plastic cement thin plate, and its main body is bending in " C " font to be arranged between shielding can and upper volute.
Detachable on described smoking port oil cleaner screen is installed.
The invention has the beneficial effects as follows: 1, structure is simple, and easy to assembly, cost of production is low, improve the market competitiveness.2, adopt turbine fan as driving power, smoking capacity is large, and operating noise is little.3, unique Volute Design, can make smoking port and smoke exhaust port be positioned on same axis, realizes coaxially discharging fume, and is convenient to assemble with top sucking type kitchen ventilator use.4, after oil smoke throws away in turbine, good oil removing effect when clashing into spiral case, can be played, ensure that discharging cigarette plays middle oil content.
Accompanying drawing explanation
Fig. 1,2 is general assembly design sketch of the present invention.
Fig. 3,4 is Standard figure of the present invention.
Fig. 5 is upper volute structural representation in the present invention.
Fig. 6,7 is the total assembling structure sectional view of the present invention.
Embodiment
Below in conjunction with accompanying drawing, concrete further instruction is done to the present invention.A kind of centrifugal fan module of kitchen ventilator, it is characterized in that: it comprises upper volute 1 and lower spiral case 2, upper and lower spiral case mutually docks fastening and is installed together, the top of upper volute 1 is provided with smoke exhaust port 3, the lower end of lower spiral case 2 is provided with smoking port 4, the smoke exhaust port 3 of upper volute 1 is provided with support 5 and drive motor 6 is installed thereon, the main shaft of drive motor 6 is provided with smoking turbine 7, can also descend on spiral case 2 and support is set, drive motor and smoking turbine being inverted is arranged on the support of lower spiral case, the inside of upper volute 1 is provided with shielding can 8, shielding can 8 is connected with upper volute 1 by some connecting tendons 81 of its outer surface, wind guide channel 9 is formed between shielding can 8 and upper volute 1, the through smoke exhaust port of wind guide channel 93 and lower spiral case 2.
The upper lever stopper 71 of described smoking turbine 7 and the mutually concordant setting of lower bead 82 of shielding can 8.
The upper-end surface of described smoking turbine 7 is provided with connecting sleeve 72, in being axially provided with some grades of locating fasteners 73 on the cylinder of connecting sleeve 72, is arranged on boss 61 holding on drive motor main shaft at this locating fastener 73 internal fixtion.
The internal surface of described connecting sleeve 72 arranges bossed shaft coupling block 74, in shaft coupling block 74 interts and is arranged on electric machine main shaft shaft coupling groove 62.
Described upper volute 1 and lower spiral case 2 entirety are in hemispherical, overall by plastic cement material molding and forming.
Described connecting tendon 81 is plastic cement thin plate, and its main body is bending in " C " font to be arranged between shielding can 8 and upper volute 1.
Detachable on described smoking port 4 oil cleaner screen 91 is installed.
Working principle: adopt in this case and mutually fasten composition in hemispheric upper and lower spiral case, screw can be adopted between two spiral cases to connect, and the linkage structures such as buckle connection are fixed as one.When the use of reality, this blower fan module entirety is fixed on kitchen ventilator body interior.When kitchen ventilator works, drive motor drives smoking turbine quick rotation, and form negative pressure at the smoking port place of lower spiral case, oil smoke sucks from the middle part of air draught turbine under the effect of atmospheric pressure, is then vertically discharged.Oil smoke is in the process of colliding with turbine, and first the grease in oil smoke is attached on turbine, plays the first heavy oil smoke centrifugation.Then, oil smoke, with the contact process of upper volute, plays the second heavy oil cigarette centrifugation.After oil smoke contacts with the first spiral case, be subject to internal surface guiding and the restriction of shielding can of spiral case, oil smoke goes out upwards discharge from forming wind guide channel 9 between shielding can 8 and upper volute 1.The smoke exhaust port 3 arranged eventually through upper volute 1 top is discharged.
Compared with traditional figure six body spiral case turbine structure, after in this case, adopt unique spherical worm frame, add the wind guide channel that in upper volute, shielding can is formed, the smoking port of oil smoke and smoke exhaust port are in and are same as on axis, thus realize the effect of axial flow smoke evacuation.When this module is assembled with kitchen ventilator, smoke-ejecting pipe can be in the center position of kitchen ventilator body, and convenient assembling with cabinet etc. uses.
Wherein it should be noted that: adopt turbine fan as power in this case, it is compared with traditional axial-flow blower, and it is larger that it has suction air volume, the advantages such as operating noise is less.Meanwhile, the upper-end surface of smoking turbine 7 is provided with connecting sleeve 72, in being axially provided with some grades of locating fasteners 73 on the cylinder of connecting sleeve 72, is arranged on boss 61 holding on drive motor main shaft at this locating fastener 73 internal fixtion.When user needs dismounting turbine to carry out greasy dirt cleaning, only need firmly to pull out turbine fan, locating fastener and boss are departed from.And after having cleaned, as long as the internal surface of connecting sleeve 72 is arranged bossed shaft coupling block 74 intert be arranged on electric machine main shaft shaft coupling groove 62 in realize axle and connect, and make boss 61 holding at locating fastener 73 internal fixtion, thus realize the functions such as turbine flabellum tool-free quick disassembly and assembly.
More than show and describe basic principle of the present invention and major character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and specification just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.
Claims (7)
1. the centrifugal fan module of a kitchen ventilator, it is characterized in that: it comprises upper volute (1) and lower spiral case (2), upper and lower spiral case mutually docks fastening and is installed together, the top of upper volute (1) is provided with smoke exhaust port (3), the lower end of lower spiral case (2) is provided with smoking port (4), the smoke exhaust port (3) of upper volute (1) is provided with support (5) and drive motor (6) is installed thereon, the main shaft of drive motor (6) is provided with smoking turbine (7), the inside of upper volute (1) is provided with shielding can (8), shielding can (8) is connected with upper volute (1) by some connecting tendons (81) of its outer surface, wind guide channel (9) is formed between shielding can (8) and upper volute (1), wind guide channel (9) through smoke exhaust port (3) and lower spiral case (2).
2. the centrifugal fan module of a kind of kitchen ventilator according to claim 1, is characterized in that: the upper lever stopper (71) of described smoking turbine (7) and lower bead (82) the mutually concordant setting of shielding can (8).
3. the centrifugal fan module of a kind of kitchen ventilator according to claim 1, it is characterized in that: the upper-end surface of described smoking turbine (7) is provided with connecting sleeve (72), in being axially provided with some grades of locating fasteners (73) on the cylinder of connecting sleeve (72), be arranged on boss (61) holding on drive motor main shaft at this locating fastener (73) internal fixtion.
4. the centrifugal fan module of a kind of kitchen ventilator according to claim 3, it is characterized in that: the internal surface of described connecting sleeve (72) arranges bossed shaft coupling block (74), in shaft coupling block (74) interts and is arranged on electric machine main shaft shaft coupling groove (62).
5. the centrifugal fan module of a kind of kitchen ventilator according to claim 1, is characterized in that: described upper volute (1) and lower spiral case (2) entirety are in hemispherical, overall by plastic cement material molding and forming.
6. the centrifugal fan module of a kind of kitchen ventilator according to claim 1, is characterized in that: described connecting tendon (81) is plastic cement thin plate, and its main body is bending in " C " font to be arranged between shielding can (8) and upper volute (1).
7. the centrifugal fan module of a kind of kitchen ventilator according to claim 1, is characterized in that: described smoking port (4) is above detachable is provided with oil cleaner screen (91).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610063352.0A CN105545771A (en) | 2016-01-31 | 2016-01-31 | Centrifugal fan module used for range hood |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610063352.0A CN105545771A (en) | 2016-01-31 | 2016-01-31 | Centrifugal fan module used for range hood |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105545771A true CN105545771A (en) | 2016-05-04 |
Family
ID=55825215
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610063352.0A Pending CN105545771A (en) | 2016-01-31 | 2016-01-31 | Centrifugal fan module used for range hood |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105545771A (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106439955A (en) * | 2016-07-27 | 2017-02-22 | 佛山市顺德区合捷电器实业有限公司 | Full filter lampblack purifier |
| CN106594826A (en) * | 2016-12-02 | 2017-04-26 | 宁波方太厨具有限公司 | Rotary suction type extractor hood |
| CN107741046A (en) * | 2017-11-27 | 2018-02-27 | 佛山市云米电器科技有限公司 | A kind of multiple duct smoke exhaust ventilator |
| CN107781884A (en) * | 2017-11-27 | 2018-03-09 | 佛山市云米电器科技有限公司 | One kind can part detachable without cover body structure smoke exhaust ventilator |
| CN107781882A (en) * | 2017-11-27 | 2018-03-09 | 佛山市云米电器科技有限公司 | A kind of non-planar smoke exhaust ventilator based on Coanda effect |
| CN107796033A (en) * | 2017-11-27 | 2018-03-13 | 佛山市云米电器科技有限公司 | A kind of smoke exhaust ventilator for preventing blower interior from polluting |
| CN107806660A (en) * | 2017-11-27 | 2018-03-16 | 佛山市云米电器科技有限公司 | It is a kind of with filtering function without cover body formula smoke exhaust ventilator |
| WO2018050719A1 (en) * | 2016-09-16 | 2018-03-22 | Berling Aero IP UG (haftungsbeschränkt) | Extractor device with air intake |
| CN108224525A (en) * | 2018-03-07 | 2018-06-29 | 佛山市云米电器科技有限公司 | A kind of kitchen ventilator by speed governing and generation vortex oil removing |
| CN108895038A (en) * | 2018-05-21 | 2018-11-27 | 佛山市顺德区美的洗涤电器制造有限公司 | Blower and range hood |
| CN109611351A (en) * | 2018-12-26 | 2019-04-12 | 南京航空航天大学 | A centrifugal/axial flow hybrid fan and a range hood composed thereof |
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| CN104454634A (en) * | 2013-09-13 | 2015-03-25 | 博西华电器（江苏）有限公司 | Range hood and fan system thereof |
| CN205503495U (en) * | 2016-01-31 | 2016-08-24 | 佛山市顺德区合捷电器实业有限公司 | Centrifugal fan module that lampblack absorber was used |
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2016
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| WO2012130437A1 (en) * | 2011-03-28 | 2012-10-04 | Berling Gmbh | Extractor hood with improved air mixing |
| CN103574717A (en) * | 2012-07-18 | 2014-02-12 | 佛山市顺德区合捷电器实业有限公司 | Range hood ventilation module and its assembling method |
| CN104454634A (en) * | 2013-09-13 | 2015-03-25 | 博西华电器（江苏）有限公司 | Range hood and fan system thereof |
| CN205503495U (en) * | 2016-01-31 | 2016-08-24 | 佛山市顺德区合捷电器实业有限公司 | Centrifugal fan module that lampblack absorber was used |
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106439955B (en) * | 2016-07-27 | 2023-09-15 | 广东合捷电器股份有限公司 | A fully filtered oil fume purifier |
| CN106439955A (en) * | 2016-07-27 | 2017-02-22 | 佛山市顺德区合捷电器实业有限公司 | Full filter lampblack purifier |
| WO2018050719A1 (en) * | 2016-09-16 | 2018-03-22 | Berling Aero IP UG (haftungsbeschränkt) | Extractor device with air intake |
| US11054144B2 (en) | 2016-09-16 | 2021-07-06 | Inovvida Aero Ip Ug | Extractor device with air intake |
| CN110088534A (en) * | 2016-09-16 | 2019-08-02 | 贝林格航空有限责任公司 | Extractor unit with air inlet |
| CN106594826A (en) * | 2016-12-02 | 2017-04-26 | 宁波方太厨具有限公司 | Rotary suction type extractor hood |
| CN107781882A (en) * | 2017-11-27 | 2018-03-09 | 佛山市云米电器科技有限公司 | A kind of non-planar smoke exhaust ventilator based on Coanda effect |
| CN107806660A (en) * | 2017-11-27 | 2018-03-16 | 佛山市云米电器科技有限公司 | It is a kind of with filtering function without cover body formula smoke exhaust ventilator |
| CN107796033A (en) * | 2017-11-27 | 2018-03-13 | 佛山市云米电器科技有限公司 | A kind of smoke exhaust ventilator for preventing blower interior from polluting |
| CN107781884A (en) * | 2017-11-27 | 2018-03-09 | 佛山市云米电器科技有限公司 | One kind can part detachable without cover body structure smoke exhaust ventilator |
| CN107806660B (en) * | 2017-11-27 | 2022-12-30 | 佛山市云米电器科技有限公司 | Hood-free type smoke exhaust ventilator with filtering function |
| CN107781882B (en) * | 2017-11-27 | 2022-12-30 | 佛山市云米电器科技有限公司 | Non-planar smoke ventilator based on kang da effect |
| CN107796033B (en) * | 2017-11-27 | 2022-12-30 | 佛山市云米电器科技有限公司 | Range hood capable of preventing fan from being polluted inside |
| CN107741046B (en) * | 2017-11-27 | 2023-01-03 | 佛山市云米电器科技有限公司 | Multi-air-duct range hood |
| CN107741046A (en) * | 2017-11-27 | 2018-02-27 | 佛山市云米电器科技有限公司 | A kind of multiple duct smoke exhaust ventilator |
| CN108224525A (en) * | 2018-03-07 | 2018-06-29 | 佛山市云米电器科技有限公司 | A kind of kitchen ventilator by speed governing and generation vortex oil removing |
| CN108224525B (en) * | 2018-03-07 | 2022-12-30 | 佛山市云米电器科技有限公司 | Range hood capable of removing oil by means of speed regulation and vortex generation |
| CN108895038A (en) * | 2018-05-21 | 2018-11-27 | 佛山市顺德区美的洗涤电器制造有限公司 | Blower and range hood |
| CN109611351A (en) * | 2018-12-26 | 2019-04-12 | 南京航空航天大学 | A centrifugal/axial flow hybrid fan and a range hood composed thereof |
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