CN1789825A - Range hood - Google Patents

Range hood Download PDF

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Publication number
CN1789825A
CN1789825A CN 200510120260 CN200510120260A CN1789825A CN 1789825 A CN1789825 A CN 1789825A CN 200510120260 CN200510120260 CN 200510120260 CN 200510120260 A CN200510120260 A CN 200510120260A CN 1789825 A CN1789825 A CN 1789825A
Authority
CN
China
Prior art keywords
air
guider
smoke exhaust
cover
exhaust ventilator
Prior art date
Application number
CN 200510120260
Other languages
Chinese (zh)
Other versions
CN1789825B (en
Inventor
李制俊
宋圣培
孙尚范
白丞祚
Original Assignee
Lg电子株式会社
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority to KR1020040106349A priority Critical patent/KR100600731B1/en
Priority to KR1020040106349 priority
Priority to KR10-2004-0106349 priority
Application filed by Lg电子株式会社 filed Critical Lg电子株式会社
Publication of CN1789825A publication Critical patent/CN1789825A/en
Application granted granted Critical
Publication of CN1789825B publication Critical patent/CN1789825B/en

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24CDOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C15/00Details
    • F24C15/20Removing cooking fumes
    • F24C15/2028Removing cooking fumes using an air curtain
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/08Air-flow control members, e.g. louvres, grilles, flaps or guide plates
    • F24F13/081Air-flow control members, e.g. louvres, grilles, flaps or guide plates for guiding air around a curve
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F9/00Use of air currents for screening, e.g. air curtains
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2221/00Details or features not otherwise provided for
    • F24F2221/28Details or features not otherwise provided for using the Coanda effect

Abstract

Disclosed herein is an exhaust hood. The flow of air discharged from a nozzle unit of a hood body out of a kitchen is changed by a ring-shaped rod and a louver, which are disposed in the nozzle unit of the hood body. Consequently, the present invention has the effect of selectively accomplishing air-curtain effect of preventing contaminated air from diffusing in front of a cooking table and Coanda effect of collecting contaminated air away from an inlet port of the hood body.

Description

Smoke exhaust ventilator
Technical field
The present invention relates to a kind of smoke exhaust ventilator (exhaust hood), and be particularly related to the smoke exhaust ventilator of a kind of permission, be used for optionally realizing air curtain effect and Coanda effect, thereby promote the convenience of smoke exhaust ventilator according to user's situation change air-flow.
Background technology
Usually each kitchen is equipped with cooking table, and cooking table is provided with and is used for heating the heater of cooking (for example boil or bake) food, for example electric furnace or gas range to food.
When the high temperature that is produced by the heater that is arranged on the cooking table came cooking food, food can discharge smell.Smell produces by swimming in airborne oil particles and suspended particulate when the cooking food.Particularly in the kitchen of improper ventilation, thereby the smell that food produces may make the cook can't concentrate on causing thus injured.For this reason, smoke exhaust ventilator is arranged on the top of cooking table, is used to discharge smell and polluter.
Fig. 1 is the schematic diagram that culinary traditional smoke exhaust ventilator 10 is shown.
As shown in Figure 1, culinary traditional smoke exhaust ventilator 10 is arranged on cooking table 2 tops that are used for cooking food, is fixed to simultaneously wall 4 and ceiling 6 are installed.
Smoke exhaust ventilator 10 comprises: cover body 12, and it forms the outward appearance of smoke exhaust ventilator 10, and cover body 12 is provided with inlet 14 and outlet 16; Exhaust fan 18, it is used for air being sucked cover body 12 and air being drained into outside the kitchen; The motor (not shown), it is owing to drive exhaust fan 18; Filter 20, it is arranged in the inlet 14 of cover body 12, is used for 14 purifying air when sucking by entering the mouth at air; With the blast pipe (not shown), the outlet 16 that it is connected to smoke exhaust ventilator 12 is used for and will guides to outside the kitchen by exporting 16 air of discharging.
The operation that below description is had traditional smoke exhaust ventilator of said structure.
When smoke exhaust ventilator 10 turned round in the time of cooking food on cooking table 2, exhaust fan 18 rotated by motor.Therefore, the contaminated air that produces during cooking food, for example gas and oil smoke are introduced cover body 12 by inlet 14 under the suction of exhaust fan 18.
When the air that pollutes was introduced cover body 12 by inlet 14, the air of pollution passed the filter 20 that is used for filtering contaminants.Thereby, the air of purification by export 16 and blast pipe drain into outside the kitchen.
Yet when using traditional smoke exhaust ventilator, although the air of inlet 14 belows of cover body 12 can suck in the cover body 12 well, the air of enter the mouth 14 fronts or 14 both sides that enter the mouth fails to suck well in the cover body 12.Therefore, the air of pollution fills the air in the kitchen everywhere.
In order to address the above problem, cover body front at smoke exhaust ventilator is provided with other fan, be used for air is blown into the cooking table front, so that user and cooking table are isolated (air curtain effect (air-curtain effect)), perhaps change the cover body of smoke exhaust ventilator, make the front end bending of cover body, so that air is along the bent front ends mobile (Coanda effect) of cover body.The suction and the collection efficiency of smoke exhaust ventilator front like this, have just been improved.
Yet in this case, air curtain effect or Coanda effect are independent the uses, so the efficient of smoke exhaust ventilator is restricted.
Summary of the invention
Therefore, created the present invention in view of the above problems; The purpose of this invention is to provide a kind of smoke exhaust ventilator, the air that it can be collected in the pollution of the cooking table place generation in the kitchen effectively is used for antipollution air and fills the air around kitchen and other residential area.
According to the present invention, can realize above-mentioned and other purpose by a kind of smoke exhaust ventilator is provided, this smoke exhaust ventilator comprises: cover body, it is arranged on the top of the cooking table in the kitchen, and this cover body is provided with entrance and exit; Exhaust fan, the side that it is mounted in this cover body is used for by this inlet air being sucked in this cover body, and by this outlet air is drained into outside this kitchen; Auxiliary blower, it is mounted to the opposite side in this cover body; Spout device, the front portion that it is arranged on this cover body, the air that is used for blowing by this auxiliary blower enters in this kitchen; Guider, it is mounted to this spout device, and this guider has the bend that is used to guide air, so that this bend ambient air of this guider is mobile along this bend of this guider; With the air-flow modifier, it is arranged between this spout device and this guider, so that this air-flow modifier can be used to change the air-flow of discharging from this spout device along the bend rotation of this guider.
Preferably, this air-flow modifier comprises: wallboard, its be arranged in this spout device and with this guider preset distance of being separated by; This wallboard and this guider are limited to the floss hole between their wallboards together, so that air is discharged by this floss hole from this spout device.
Preferably, this air-flow modifier also comprises: the motor that is used to rotate this wallboard.
Preferably, this wallboard comprises: guide part, and it is used for steering current; And connecting portion, it is used to connect the two ends of this guide part, and described connecting portion connects the rotating shaft of this motor.
Preferably, this guider is the annular bar that is mounted to the bottom of this spout device.
Preferably, this annular rod becomes hollow shape, so that this motor is installed in this annular bar.
Preferably, this air-flow modifier is provided with the roller that at least one contacts with the bend rolling of this guider.
Preferably, described at least one roller comprises: be connected to a plurality of rollers of the bottom surface of this air-flow modifier, and described a plurality of roller is along the apart predetermined length of its length direction.
Preferably, described roller is rotationally attached to this air-flow modifier.
Preferably, this cover body is provided with the auxiliary entrance, and this auxiliary entrance is arranged on the top of this auxiliary blower, is used for allowing to make air pass this auxiliary entrance by this auxiliary blower and introduces in this cover body.
According to the present invention, the air-flow outside spout device drains into the kitchen is to change by guider in the spout device that is arranged on cover body and air-flow modifier.Therefore, the present invention has following effect: optionally realize being used to prevent contaminated air at cooking table air curtain effect of scattering previously and the air-polluting Coanda effect that is used to collect away from the inlet of cover body, thereby improved the convenience of smoke exhaust ventilator.
In addition, the revolution of auxiliary blower can change, thereby the revolution of increase auxiliary blower increases the speed of spout device with realization air curtain effect, and the revolution of minimizing auxiliary blower reduces the speed of spout device to realize Coanda effect.Therefore, the present invention has the effect that can more effectively realize air curtain effect and Coanda effect.
In addition, no matter the performance of scavenger fan how, can both be collected contaminated air.Therefore, the present invention has the effect of improving collection efficiency.
In addition, guider is the annular bar that is mounted to spout device, and the air-flow modifier comprises wallboard, this wallboard be arranged in the spout device and with the annular bar preset distance of being separated by, and this wallboard rotates by stepper motor.Therefore, the present invention has the effect that is easy to control the wallboard position and is easy to move wallboard.
And the air-flow modifier is provided with a plurality of rollers that roll and contact with the bend of guider.Therefore, the present invention has the effect that prevents to reduce the air-flow modifier, keeps air-flow modifier balance and reduce the friction between air-flow modifier and the guider.
Description of drawings
From detailed description with the accompanying drawing hereinafter, can more be expressly understood above and other objects of the present invention, feature and other advantage, in the accompanying drawings:
Fig. 1 is the schematic diagram that culinary traditional smoke exhaust ventilator is shown;
Fig. 2 illustrates the cutaway view of culinary smoke exhaust ventilator according to the preferred embodiment of the invention;
Fig. 3 is the air curtain effect schematic diagram of explanation culinary smoke exhaust ventilator according to the preferred embodiment of the invention shown in Figure 2; And
Fig. 4 is the Coanda effect schematic diagram of explanation culinary smoke exhaust ventilator according to the preferred embodiment of the invention shown in Figure 2.
The specific embodiment
Describe the preferred embodiments of the present invention in detail below with reference to accompanying drawing.
Fig. 2 illustrates the cutaway view of culinary smoke exhaust ventilator according to the preferred embodiment of the invention; Fig. 3 is the air curtain effect schematic diagram of explanation culinary smoke exhaust ventilator according to the preferred embodiment of the invention shown in Figure 2; Fig. 4 is the Coanda effect schematic diagram of explanation culinary smoke exhaust ventilator according to the preferred embodiment of the invention shown in Figure 2.
To shown in Figure 4, smoke exhaust ventilator according to the present invention comprises as Fig. 2: cover body 50, and it is arranged on the top of cooking table (not shown), and cover body 50 is provided with inlet 52 and outlet 54; Exhaust fan 56, the side that it is installed in the cover body 50 is used for air 52 is sucked cover bodies 12 and air is drained into outside the kitchen by exporting 54 by entering the mouth; Auxiliary blower 58, it is installed in the opposite side in the cover body 50; Spout device 60, the front portion that it is arranged on cover body 50 is used for the air that auxiliary blower 58 blows is drained in the kitchen; Guider, it is mounted to spout device 60, and this guider has the bend that is used to guide air, so that this bend ambient air of this guider is mobile along this bend of this guider; And air-flow modifier 70, it is arranged between spout device 60 and this guider, so that air-flow modifier 70 can be used to change the air-flow of discharging from spout device 60 along this bend rotation of this guider.
Filter 53 is installed at inlet in 52, it is used for 52 purifying air when sucking by entering the mouth at air.Outlet 54 is connected with the blast pipe (not shown), and it forms the passage that passes when draining into outside the kitchen for inhaled air.
The exhaust fan motor (not shown) that is used to drive exhaust fan 56 is installed in cover body 50.
Auxiliary blower 58 can be cross flow fan or slim centrifugal fan.Auxiliary blower 58 is configured to change the revolution of auxiliary blower 58.
On cover body 50, be formed with auxiliary entrance 64, be used to allow air to pass through this auxiliary entrance 64 and introduce cover body 50.Auxiliary entrance 64 is arranged on the top of auxiliary blower 58.
In the embodiment shown, although auxiliary blower 58 can be provided with this auxiliary entrance 64 by being installed in the filter 53 suction air in the inlet 52 and this air being blown to spout device 60 above auxiliary blower 58.
Guider is the annular bar 62 that is mounted to the bottom 61 of spout device 60.The top 63 of spout device 60 bends to predetermined length, so that the top 63 of spout device 60 is corresponding with the outer circumference surface of annular bar 62.
Air-flow modifier 70 comprises: wallboard (louver) 72, its be arranged in the spout device 60 and with annular bar 62 at a distance of preset distance; And motor 74, it is used to rotate this wallboard 72.
Between wallboard 72 and annular bar 62, be limited with floss hole 80, pass the air of spout device 60 by these floss hole 80 discharges from auxiliary blower 58.
Wallboard 72 comprises: be used for the guide part 82 and the connecting portion 84 that is connected to guide part 82 two ends of steering current, connecting portion 84 is connected to the rotating shaft 75 of motor 74.
Preferably, motor 74 is the stepping motors that can control the anglec of rotation of wallboard 72.
Annular bar 62 forms hollow shape, so that motor 74 is installed in the annular bar 62.The rotating shaft 75 of motor 74 is extended along the length direction of annular bar 62.
Connecting portion 84 bends to annular bar 62 from the two ends of guide part 82, so that connecting portion 84 is connected to the rotating shaft 75 of motor 74.
Wallboard 72 is provided with at least one roller (roller) 76 that contacts with the external peripheral surface rolling of annular bar 62.Preferably, the lower surface of wallboard 72 is connected with a plurality of rollers 76, and a plurality of roller 76 is along the length direction each interval predetermined length of wallboard 72.
Particularly, roller 76 is rotationally attached to the connector 78 that the lower surface that is formed at wallboard 72 and way roller 76 extend.On connector 78, be formed with a plurality of jacks that insert for the rotating shaft 77 of roller 76 respectively.
Below the operation that has the smoke exhaust ventilator of said structure according to of the present invention will be described.
When exhaust fan 56 turned round in the time of cooking food on cooking table, the contaminated air in the kitchen was introduced cover bodies 50 by inlet 52, is disposed to outside the kitchen by exporting 54 then.
At this moment, can move auxiliary blower 58, with the air-flow (air curtain effect) between blocking-up user and the cooking table, or steering current makes gas flow along annular bar 62, thereby improves the collection efficiency (Coanda effect) of outlet 52.
In order to realize the air curtain effect, operation motor 74 makes wallboard 72 be positioned at the front end of spout device 60 with rotation wallboard 72.
When operation motor 74, wallboard 72 rotates towards the front end of spout device 60 around the rotating shaft 75 of motor 74.
When wallboard 72 moves forward along annular bar 62 by roller 76, thereby when the upside of wallboard 72 was positioned at the end on top 63 of spout device 60, motor 74 shut down.
Therefore, be limited to floss hole 80 between wallboard 72 and the annular bar 62, thereby the air that is blowed by auxiliary blower 58 is discharged vertically downward towards cooking table by floss hole 80 by horizontal location.
At this moment, preferably increase the revolution of auxiliary blower 58, to increase the speed of spout device 60.
The air of discharging vertically downward from floss hole 80 is isolated user and cooking table, thereby prevents that the oil smoke or the smell that produce in the cooking process from spreading in the cooking table front.
In order to realize Coanda effect, operation motor 74 makes wallboard 72 be positioned at the top of annular bar 62 with rotation wallboard 72.
Therefore, the floss hole 80 that is limited between wallboard 72 and the annular bar 62 is positioned at the top of annular bar 62, thereby is drained into the end face of annular bar 62 obliquely by the air that auxiliary blower 58 blows.
At this moment, preferably reduce the revolution of auxiliary blower 58, so that the speed of spout device 60 is decreased to about 5m/s.
The air that drains into the end face of annular bar 62 obliquely flows along the external peripheral surface of annular bar 62.Therefore, around annular bar 62, produce negative pressure.
This fluid is called as Coanda effect along the phenomenon that curve flows, and it is because due to the viscosity of fluid.
When around annular bar 62 when producing negative pressure, be collected to inlet 52 along the bottom surface of annular bar 62 away from the air of cover body 50.
Particularly, be sucked into inlet 52, therefore improved collection efficiency (collection efficiency) away from the contaminated air of the inlet 52 of cover body 50.
As mentioned above, according to user's situation, optionally utilize air curtain effect and Coanda effect by the position that changes wallboard 72.
Clear as can be known by foregoing description, the air-flow that drains in the kitchen from spout device is to change by guider in the spout device that is arranged on cover body and air-flow modifier.Thereby the present invention has following effect: optionally realize preventing contaminated air at cooking table air curtain effect of scattering previously and the air-polluting Coanda effect of collecting away from the inlet of cover body, thereby improved the convenience of smoke exhaust ventilator.
In addition, the revolution of auxiliary blower can change, thereby the revolution of increase auxiliary blower increases the speed of spout device with realization air curtain effect, and the revolution of minimizing auxiliary blower reduces the speed of spout device to realize Coanda effect.Thereby the present invention has the effect that can more effectively realize air curtain effect and Coanda effect.
In addition, no matter the performance of scavenger fan how, can both be collected contaminated air.Thereby the present invention has the effect of improving collection efficiency.
In addition, guider is the annular bar that is mounted to spout device, and the air-flow modifier comprises wallboard, this wallboard be arranged in the spout device and with the annular bar preset distance of being separated by, and this bar rotates by stepper motor.Thereby the present invention has the effect that is easy to control the wallboard position and is easy to move wallboard.
And the air-flow modifier is provided with a plurality of rollers that roll and contact with the bend of guider.Therefore, the present invention has the effect that prevents to reduce the air-flow modifier, keeps air-flow modifier balance and reduce the friction between air-flow modifier and the guider.
Although disclosed the preferred embodiments of the present invention for illustrative purposes, but it should be appreciated by those skilled in the art that: under the situation that does not break away from the scope and spirit of the present invention that disclose as appended claims, can carry out various modifications, increase and replacement the present invention.

Claims (10)

1. smoke exhaust ventilator, it comprises:
Cover body, it is arranged on the top of the cooking table in the kitchen, and this cover body is provided with entrance and exit;
Exhaust fan, the side that it is mounted in this cover body is used for by this inlet air being sucked in this cover body, and by this outlet air is drained into outside this kitchen;
Auxiliary blower, it is mounted to the opposite side in this cover body;
Spout device, the front portion that it is arranged on this cover body, the air that is used for blowing by this auxiliary blower enters in this kitchen;
Guider, it is mounted to this spout device, and this guider has the bend that is used to guide air, so that this bend ambient air of this guider is mobile along this bend of this guider; And
The air-flow modifier, it is arranged between this spout device and this guider, so that this air-flow modifier can be used to change the air-flow of discharging from this spout device along this bend rotation of this guider.
2. smoke exhaust ventilator according to claim 1, wherein this air-flow modifier comprises:
Wallboard, its be arranged in this spout device and with this guider preset distance of being separated by;
This wallboard and this guider define the floss hole between this wallboard and this guider together, so that air is discharged by this floss hole from this spout device.
3. smoke exhaust ventilator according to claim 2, wherein this air-flow modifier also comprises: the motor that is used to rotate this wallboard.
4. smoke exhaust ventilator according to claim 3, wherein this wallboard comprises:
Guide part, it is used for steering current; And
Connecting portion, it is used to connect the two ends of this guide part, and described connecting portion is connected to the rotating shaft of this motor.
5. smoke exhaust ventilator according to claim 4, wherein this guider is the annular bar that is mounted to the bottom of this spout device.
6. smoke exhaust ventilator according to claim 5 wherein should become hollow shape by the annular rod, so that this motor is installed in this annular bar.
7. according to each described smoke exhaust ventilator in the claim 1 to 6, wherein this air-flow modifier is provided with the roller that at least one contacts with the bend rolling of this guider.
8. smoke exhaust ventilator according to claim 7, wherein said at least one roller comprises:
Be connected to a plurality of rollers of the bottom surface of this air-flow modifier, and described a plurality of roller is along the apart predetermined length of its length direction.
9. smoke exhaust ventilator according to claim 8, wherein said roller are rotationally attached to this air-flow modifier.
10. smoke exhaust ventilator according to claim 9, wherein this cover body is provided with the auxiliary entrance, and this auxiliary entrance is arranged on the top of this auxiliary blower, is used for allowing to make air pass this auxiliary entrance by this auxiliary blower and introduces in this cover body.
CN 200510120260 2004-12-15 2005-11-09 Range hood CN1789825B (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
KR1020040106349A KR100600731B1 (en) 2004-12-15 2004-12-15 Exhaust Hood
KR1020040106349 2004-12-15
KR10-2004-0106349 2004-12-15

Publications (2)

Publication Number Publication Date
CN1789825A true CN1789825A (en) 2006-06-21
CN1789825B CN1789825B (en) 2010-05-12

Family

ID=35999605

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 200510120260 CN1789825B (en) 2004-12-15 2005-11-09 Range hood

Country Status (4)

Country Link
EP (1) EP1674799B1 (en)
KR (1) KR100600731B1 (en)
CN (1) CN1789825B (en)
AU (1) AU2005220262B2 (en)

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CN101646904B (en) * 2007-03-20 2011-09-07 Bsh博施及西门子家用器具有限公司 Extractor hood

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CN102297464A (en) * 2010-06-25 2011-12-28 胡树标 Range hood
US9599351B2 (en) * 2013-10-24 2017-03-21 Whirlpool Corporation Modular vent hood blower kit for in-line or external application
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CN104896543B (en) * 2014-03-05 2018-01-09 海尔集团公司 Lampblack absorber
CN104896546B (en) * 2014-03-05 2018-02-16 海尔集团公司 Lampblack absorber
ES2646923B1 (en) * 2016-06-08 2018-10-15 Bsh Electrodomésticos España, S.A. Smoke extractor hood and procedure for the operation of a smoke extractor hood
KR20180055156A (en) * 2016-11-16 2018-05-25 삼성전자주식회사 Air conditioner
CN106824538B (en) * 2017-03-31 2018-11-13 广东美的厨房电器制造有限公司 Electrode plate, electrostatic ionization module and kitchen ventilator
KR102146057B1 (en) * 2018-07-18 2020-08-19 김지하 Local ventilator

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Also Published As

Publication number Publication date
KR20060067541A (en) 2006-06-20
AU2005220262A1 (en) 2006-06-29
EP1674799B1 (en) 2012-03-28
KR100600731B1 (en) 2006-07-18
AU2005220262B2 (en) 2007-07-26
CN1789825B (en) 2010-05-12
EP1674799A1 (en) 2006-06-28

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