EP1757864A2 - Hotte d'aspiration - Google Patents

Hotte d'aspiration Download PDF

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Publication number
EP1757864A2
EP1757864A2 EP06001335A EP06001335A EP1757864A2 EP 1757864 A2 EP1757864 A2 EP 1757864A2 EP 06001335 A EP06001335 A EP 06001335A EP 06001335 A EP06001335 A EP 06001335A EP 1757864 A2 EP1757864 A2 EP 1757864A2
Authority
EP
European Patent Office
Prior art keywords
air
curved shape
shape portion
nozzle
air supply
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.)
Granted
Application number
EP06001335A
Other languages
German (de)
English (en)
Other versions
EP1757864A3 (fr
EP1757864B1 (fr
Inventor
Seung-Jo Baek
Sang-Bum Sohn
Sung-Bae Song
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LG Electronics Inc
Original Assignee
LG Electronics Inc
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 claimed from KR1020050077011A external-priority patent/KR100664069B1/ko
Priority claimed from KR1020050077009A external-priority patent/KR100664067B1/ko
Application filed by LG Electronics Inc filed Critical LG Electronics Inc
Publication of EP1757864A2 publication Critical patent/EP1757864A2/fr
Publication of EP1757864A3 publication Critical patent/EP1757864A3/fr
Application granted granted Critical
Publication of EP1757864B1 publication Critical patent/EP1757864B1/fr
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B15/00—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area
    • B08B15/02—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area using chambers or hoods covering the area
    • 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
    • F24C15/2028—Removing cooking fumes using an air curtain

Definitions

  • the present invention relates to an exhaust hood, and particularly, to an exhaust hood having improved polluted-air collecting efficiency.
  • an exhaust hood is disposed above a cooker such as a gas range or a laboratory table that generate materials causing air pollution like smoke, smells and grease vapor.
  • FIG 1 is a side sectional view that illustrates one example of an exhaust hood according to the conventional art.
  • the conventional exhaust hood includes a canopy 21 installed above a cooker 10 having a plurality of burners 11 a and 11 b spaced at a predetermined distance therebetween, and an exhaust part 31 communicating with the canopy 21 and upwardly protruding from the canopy 21 to a predetermined height.
  • An inlet 23 is formed at the bottom of the canopy 21, through which the polluted air including pollutants like smoke, smells and grease vapor generated from the cooker 10 is drawn in. Also, a grease filter 24 that can collect pollutants is mounted at the inlet 23.
  • An exhaust path 33 is formed in the exhaust part 31, through which the polluted air having been introduced through the inlet 23 is exhausted to the outside.
  • An exhaust fan 34 for forcibly taking in the air is installed under the exhaust path 33.
  • the polluted air including smoke, smells and grease vapor generated as burners 11 a and 11 b of the cooker heat food items is in a buoyancy jet form and increases in width as it ascends.
  • a method of increasing a rotation rate of the exhaust fan 34 and thusly increasing an intake force may be used.
  • the rotation rate of the exhaust fan 34 is increased to increase the intake force, the intake performance is not improved in proportion to the increased rotation force. For this reason, only the intake force of the exhaust fan 34 used in such a method is not enough to guide the polluted air, which is moved to outside along the bottom surface of the canopy 21, to the inlet 23.
  • the conventional exhaust hood cannot prevent the polluted air from moving out from the canopy 21, polluting an upper region (A) of the front side of the canopy 21 and spreading to a room to thus pollute a surrounding environment.
  • FIG 2 is a side sectional view that illustrates another example of a conventional exhaust hood.
  • the conventional exhaust hood in accordance with another example includes a hood body 51 disposed above a cooker 10 at a predetermined distance therebetween, and a nozzle part 81 installed at a front region of the hood body 51 and downwardly discharging the air.
  • the hood body 51 includes a canopy 61 installed above the cooker 10, which has a plurality of burners 11a and 11 b, at a predetermined distance therebetween, and an exhaust part 71 communicating with the canopy 61 and upwardly protruding from the canopy 61 to a predetermined height.
  • the nozzle part 81 is formed at a front region of a bottom surface of the canopy 61 and discharges the air downwardly.
  • An air supply fan 83 for blowing the air to the nozzle part 81 is installed in the canopy 61.
  • a curve shape portion 85 having an arc shaped section which is convex downwardly is formed at a lower side of the front surface of the canopy 61, so that a portion of the air discharged through the nozzle part 81 can flow to a region of the inlet 63 by the so-called coanda effect.
  • the curved shape portion 85 the polluted air cannot be moved outside the canopy 61 but is guided to the inlet 63.
  • the nozzle part 81 is formed at a spot inwardly spaced apart from the front end of the canopy 61 at a predetermined distance.
  • the polluted air having ascended inside the canopy 61 can be guided to the inlet 63 by the air discharged through the nozzle part 81.
  • the method does not solve the problem that the polluted air ascending to the front end of the canopy 61 is moved out from the front end of the canopy 61 and pollutes an upper region (B).
  • an object of the present invention is to provide an exhaust hood having improved polluted-air collecting efficiency.
  • an exhaust hood including a hood body 110 including a canopy 111 provided with an inlet 123 and an exhaust part 141 communicating with the canopy 111 and provided with an exhaust path 143; and a nozzle unit 210 installed in front of the hood body 110 and including a first nozzle 211 through which the air is discharged, a first curved shape portion 213 having an arc shaped section which is convex outwardly and formed to allow the air discharged from the first nozzle 211 to flow along its outer circumferential surface, and a second curved shape portion 217 spaced apart from an inner circumferential surface of the first curved shape portion 213 at a constant interval and having a diameter smaller than that of the first curved shape portion 213, and a second nozzle 215 formed between the first curved shape portion 213 and the second curved shape portion 217, through which the air is discharged.
  • Figure 3 is a perspective view of an exhaust hood in accordance with a first embodiment of the present invention
  • Figure 4 is a sectional view taken along line IV-IV of Figure 3
  • Figure 5 is an enlarged view of part C of Figure 4.
  • the exhaust hood in accordance with the first embodiment of the present invention includes a hood body 110 and a nozzle unit 210 installed at a front side of the hood body 110 and discharging the air.
  • the arrows in the drawing represent the flow of the air.
  • the hood body 110 includes a canopy 111 installed above a cooker 10 (refer to Figure 1), which includes a plurality of burners 11a and 11b, at a predetermined distance, and an exhaust part 141 communicating with the canopy 111 and protruding from an upper surface 111a of the canopy 111 to a predetermined height.
  • the canopy 111 is formed as a quadrangular plate.
  • An inlet 123 for taking the air in is provided at the bottom 112b of the canopy 111, and a grease filter 124 for collecting a pollutant is mounted at the inlet 123.
  • an air supply fan 155 blowing the air to the nozzle unit 210 and an air supply motor 156 driving the air supply fan 155 are installed inside the canopy 111 .
  • An air supply flow path 157 for allowing the air to flow to the nozzle unit 210 is formed at the left side of the air supply fan 155.
  • An exhaust flow path 143 is formed at the exhaust part 141 and allows the air whose pollutant has been removed by the grease filter 124 to be discharged to the outside.
  • An exhaust fan 144 that can forcibly take the air in and an exhaust motor 145 that drives the fan 144 are mounted under the exhaust flow path 143.
  • the nozzle unit 210 includes a first nozzle 211 penetratingly formed at a front side of an upper surface 112a of the canopy 111 and extending long along a width direction so that the air can be discharged upwardly, a first curved shape portion 213 having an arc shaped section which is convex outwardly and formed to allow the air having discharged from the first nozzle 211 to flow along its outer circumferential surface, a second curved shape portion 217 spaced apart from an inner circumferential surface of the first curved shape portion 213 and having a smaller diameter than that of the first curved shape portion 213, and a second nozzle 215 formed between the first curved shape portion 213 and the second curved shape portion 217, through which the air is discharged.
  • An entrance of the first nozzle 211 has a width (d1) of 1.5 ⁇ 4mm.
  • the first nozzle 211 is formed at an upper surface 112a of the canopy 111 such that the air discharged through the first nozzle 211 is at a predetermined first angle ( ⁇ 1) to a horizontal center line (L H ) horizontally passing through the center (O) of the second curved shape portion 217.
  • the first angle ( ⁇ 1) is preferably within a range of 0 to 120 degrees to maximize the coanda effect.
  • a wind speed of the air discharged through the first nozzle 211 is preferably within a range of 3 to 5 m/sec to maximize the coanda effect.
  • the inlet of the second nozzle 215 has a width (d2) of 1.5 to 4mm.
  • the second nozzle 215 is formed at an end of a path (P) between the first curved shape portion 213 and the second curved shape portion 217 such that the air discharged through the second nozzle 215 is at a predetermined second angle ( ⁇ 2) to the horizontal center line (L H ) horizontally passing through the center (O) of the second curved shape portion 217.
  • the second angle ( ⁇ 2) is preferably within a range of 180 ⁇ 270 degrees to maximize the coanda effect.
  • the wind speed of the air discharged through the second nozzle 215 is preferably within a range of 3 to 5m/sec to maximize the coanda effect.
  • the air supply fan 155 rotates, a portion of the air whose pollutants have been removed is introduced to the intake flow path 152.
  • the air introduced in such a manner is discharged through the first nozzle 211 via the air supply path 157. Also, the introduced air is discharged through the second nozzle 215 via the air supply flow path 157 and the path (P) formed between the first curved shape portion 213 and the second curved shape portion 217.
  • the air discharged through the first nozzle 211 in the direction of the first angle ( ⁇ 1) moves along an outer circumferential surface of the first curved shape portion 213 by the so-called coanda effect.
  • the air moving along the outer circumferential surface forms a negative pressure region (S1) having negative (-) gauge pressure at the upper and front surfaces of the first curved shape portion 213.
  • the negative pressure region (S1) the polluted air having a tendency to escape from the exhaust hood is bent to the negative pressure region (S1) and then is introduced to the inlet 123 again. Accordingly, the polluted-air collecting efficiency of the exhaust hood is improved.
  • the air discharged through the second nozzle 215 in the direction of the second angle ( ⁇ 2) increases the momentum of the air flowing along the outer circumferential surface of the first curved shape portion 213, and thusly prevent separation of the air at a lower surface of the first curved shape portion 213. Therefore, the negative pressure region (S1) expands to the lower surface of the first curved shape portion 213, thereby improving the polluted-air collecting efficiency of the exhaust hood. Also, the diffusion of the polluted air is prevented by introducing directly to the inlet 123, the polluted air ascending from a cooker. Accordingly, the polluted-air collecting efficiency of the exhaust hood is improved.
  • Figure 6 is a perspective view of an exhaust hood in accordance with a second embodiment of the present invention
  • Figure 7 is a sectional view taken along line VII-VII of Figure 6
  • Figure 8 is an enlarged view of part D of Figure 7.
  • a nozzle unit 340 of the exhaust hood in accordance with the second embodiment is manufactured through single drawing instead of bending and welding using a board material.
  • the nozzle unit 340 includes a first curved shape portion 341 having an arc shaped section and disposed at the rear on the basis of a central region, a second curved shape portion 343 having an arc shaped section and disposed at the front on the basis of the central region such that one end of the second curved shape portion 343 is disposed inside one end of the first curved shape portion 341 at a predetermined interval therebetween so as to form a first nozzle 347, and its other end is disposed outside the other end of the first curved shape portion 341 at a predetermined interval so as to form a second nozzle 348, a partition wall 345 whose one end is connected to the first curved shape portion 341 and whose other end is connected to the second curved shape portion 343, and a pair of side plates 351 blocking both ends of the first curved shape portion 341 and the second curved shape portion 343.
  • the first nozzle 347 and the second nozzle 348 are disposed at positions illustrated in Figure 8 so that the air discharged from the first nozzle 347 and the second nozzle 348 is horizontally discharged to the front and the rear of the canopy 111, respectively.
  • first nozzle 347 and the second nozzle 348 may be disposed at positions illustrated in Figure 9 so that the air discharged from the first nozzle 347 and the second nozzle 348 can be slantly discharged to the front and rear of the canopy 111.
  • the first nozzle 347 and the second nozzle 348 are disposed at positions illustrated in Figure 10 so that the air discharged from the first nozzle 347 and the second nozzle 348 can be discharged upwardly and downwardly of the canopy 111. As described above, various dispositions thereof are possible.
  • a first guide portion 342 is formed at an end of the first curved shape portion 341. More specifically, the first guide portion 342 is formed at a lower end of the first curved shape portion 341 disposed inside the second curved shape portion 343, and is curved to have an arc shaped section for the purpose of smoothly guiding the air moving toward the second nozzle 348.
  • An upper plate 357 is coupled to an upper end of the first curved shape portion 341 and is disposed parallel to an upper surface 112a of the canopy 111. Also, a lower plate 358 is coupled to a lower end of the first curved shape portion 341 and disposed parallel to a lower surface 112b of the canopy 111.
  • a second guide portion 344 is formed at an end of the second curved shape portion 343. More specifically, the second guide portion 344 is formed at an upper end of the second curved shape portion 343 disposed inside the first curved shape portion 341, and is curved to have an arc shaped section for the purpose of smoothly guiding the air moving toward the first nozzle 347.
  • the partition wall 345 is a plate installed inside the first curved shape portion 341 and the second curved shaped portion 343 to control relative positions of the first curved shape portion 341 and the second curved shape portion 343 so that the first nozzle 347 and the second nozzle 348 are formed by the first curved shape portion 341 and the second curved shape portion 343.
  • an insertion groove 353 having a curved shape which is the same as the shapes of the first curved shape portion 341 and the second curved shape portion 343 is formed.
  • the side plate 351 is fixed to side surfaces of the first curved shape portion 341 and the second curved shape portion 343.
  • An inflow hole 352 is formed at the center of the side plate 351.
  • the inflow hole 352 is connected to an air supply pipe 355. Through such an air supply pipe 355 and an inflow hole 352, the air blowing by the air supply fan 155 (see Figure 7) can be introduced into the nozzle unit 340.
  • the aforementioned first curved shape portion 341, second curved shape portion 343 and partition wall 345 are formed as one body by a method of drawing a metal member such as aluminum.
  • the first curved shape portion 341 and the second curved shape portion 343 can have an accurate curved shape, and the first nozzle 347 and the second nozzle 348 can sustain a certain interval therebetween, thereby preventing deformation from occurring.
  • the air discharged through the first nozzle 347 moves along an outer circumferential surface of the second curved shape portion 343 by the so called coanda effect.
  • the air moving along the outer circumferential surface forms a negative pressure region (S1) having negative gauge pressure at upper and front surfaces of the second curved shape portion 343.
  • the polluted air having a tendency to escape from the exhaust hood is bent to the negative pressure region (S1) by the negative pressure region (S1) and then is introduced again to the inlet 123. Accordingly, the polluted-air collecting efficiency of the exhaust hood is improved.
  • the air discharged through the second nozzle 348 increases the momentum of the air flowing along the outer circumferential surface 343, thereby preventing separation of the air at a lower surface of the second curved shape portion 343.
  • the negative pressure region (S1) expands to the lower surface of the second curved shape portion 343, to thereby improve the polluted-air collecting efficiency of the exhaust hood.
  • the polluted air ascending from a cooker is directly guided to the inlet 123 to prevent the diffusion of the polluted air. Accordingly, the polluted-air collecting efficiency of the exhaust hood is improved.
  • Figure 13 is a side sectional view of an exhaust hood provided with an upper inlet in accordance with the third embodiment of the present invention.
  • the air introduced through the inlet 123 is not provided to the nozzle unit 210 but the air introduced through a grease filter 174 installed at an upper inlet 173 formed on an upper surface 112a of the canopy 111 is provided to be discharged through the nozzle unit 210.
  • Figure 14 is a side sectional view of an exhaust hood provided with a reflux flow path in accordance with the fourth embodiment of the present invention.
  • a reflux flow path 177 is formed inside the canopy 111 and the exhaust part 141.
  • one end of the reflux flow path 177 is connected to an exhaust flow path 143 and its other end is connected to an air supply flow path 157. Accordingly, the air supply fan 155 (see Figure 4) and the air supply motor 156 (see Figure 4) are no more required, and the cost therefor can be saved.
  • Figure 15 is a perspective view of an exhaust hood provided with a nozzle unit and an auxiliary nozzle unit in accordance with the fifth embodiment of the present invention.
  • the exhaust hood in accordance with the fifth embodiment includes a nozzle unit 210 that prevents the polluted air from flowing to the front of the canopy 111 as described in the first embodiment, and a pair of auxiliary nozzle units 240 that prevent the polluted air from flowing to both sides of the canopy 111.
  • the construction and operation of the nozzle unit 210 is the same as those described in the first embodiment, the description thereon will be omitted.
  • the auxiliary nozzle unit 240 includes a first auxiliary nozzle 241 penetratingly formed at a front side of an upper surface 112a of the canopy 111 and extending along a longitudinal direction so as to allow the air to be discharged upwardly, a first auxiliary curved shape portion 243 having an arc shaped section which is convex outwardly and allowing the air discharged from the first auxiliary nozzle to flow along its outer circumferential surface, a second auxiliary curved shape portion 247 spaced apart from an inner circumferential surface of the first auxiliary curved shape portion 243 and having a diameter smaller than that of the first auxiliary curved shape portion 243, and a second auxiliary nozzle 245 formed between the first auxiliary curved shape portion 243 and the second auxiliary curved shape portion 247, through which the air is discharged.
  • the construction and operation of the first auxiliary nozzle 241, the second auxiliary nozzle 245, the first auxiliary curved shape portion 243 and the second auxiliary curved shape portion 247 of the auxiliary nozzle unit 240 will be omitted because they are the same as those of the first nozzle 211, the second nozzle 215, the first curved shape portion 213 and the second curved shape portion 217.
  • the auxiliary nozzle unit 240 the polluted air escaping to both sides of the canopy 111 can be collected. Accordingly, entire collecting efficiency of the exhaust hood is increased.
  • the polluted air escaping to the front of the exhaust hood can be effectively introduced to an inlet and be collected. Accordingly, pleasant cooking and laboratory environments can be formed.
  • first curved shape portion, a second curved shape portion and a partition wall are formed as one body by a method of drawing a metallic member such as aluminum, the first curved shape portion and the second curved shape portion can have an accurate curved surface, and a first nozzle and a second nozzle can sustain a constant interval, thereby preventing deformation.
  • the polluted air escaping to both sides of the exhaust hood can also be guided to an inlet and then collected. Accordingly, more pleasant cooking and laboratory environments can be formed.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Ventilation (AREA)
EP20060001335 2005-08-22 2006-01-23 Hotte d'aspiration Expired - Fee Related EP1757864B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020050077011A KR100664069B1 (ko) 2005-08-22 2005-08-22 월젯모듈 및 이를 구비한 배기 후드
KR1020050077009A KR100664067B1 (ko) 2005-08-22 2005-08-22 배기 후드

Publications (3)

Publication Number Publication Date
EP1757864A2 true EP1757864A2 (fr) 2007-02-28
EP1757864A3 EP1757864A3 (fr) 2013-12-25
EP1757864B1 EP1757864B1 (fr) 2015-05-06

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP20060001335 Expired - Fee Related EP1757864B1 (fr) 2005-08-22 2006-01-23 Hotte d'aspiration

Country Status (1)

Country Link
EP (1) EP1757864B1 (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008113664A2 (fr) 2007-03-20 2008-09-25 BSH Bosch und Siemens Hausgeräte GmbH Hotte aspirante
WO2009024513A1 (fr) * 2007-08-22 2009-02-26 BSH Bosch und Siemens Hausgeräte GmbH Boîtier d'une hotte aspirante avec une fente de sortie d'air
WO2009024505A1 (fr) * 2007-08-22 2009-02-26 BSH Bosch und Siemens Hausgeräte GmbH Boîtier de hotte aspirante
CN106594831A (zh) * 2016-12-16 2017-04-26 美的集团股份有限公司 射流拢烟装置及排烟装置
CN106594830A (zh) * 2016-12-16 2017-04-26 美的集团股份有限公司 排烟装置
WO2018094784A1 (fr) * 2016-11-25 2018-05-31 广东威灵电机制造有限公司 Hotte de cuisine
CN108870480A (zh) * 2017-05-08 2018-11-23 青岛有屋科技有限公司 一种新式橱柜底板及其控制方法
CN110631106A (zh) * 2019-10-16 2019-12-31 曾堙堙 一种往复螺旋自吸式油烟机
WO2021031449A1 (fr) * 2019-08-22 2021-02-25 美的集团股份有限公司 Hotte

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10015666A1 (de) * 1999-12-14 2001-06-28 Georg Emanuel Koppenwallner Verfahren und Einrichtung zum Erfassen, Trennen und Absaugen von fluiden Medien unter Verwendung von Frontalwirbelgeneratoren
KR20020072760A (ko) * 2001-06-04 2002-09-18 주식회사 엑타 주방용 배기 후드
KR100664069B1 (ko) * 2005-08-22 2007-01-04 엘지전자 주식회사 월젯모듈 및 이를 구비한 배기 후드

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10015666A1 (de) * 1999-12-14 2001-06-28 Georg Emanuel Koppenwallner Verfahren und Einrichtung zum Erfassen, Trennen und Absaugen von fluiden Medien unter Verwendung von Frontalwirbelgeneratoren
KR20020072760A (ko) * 2001-06-04 2002-09-18 주식회사 엑타 주방용 배기 후드
KR100664069B1 (ko) * 2005-08-22 2007-01-04 엘지전자 주식회사 월젯모듈 및 이를 구비한 배기 후드

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008113664A2 (fr) 2007-03-20 2008-09-25 BSH Bosch und Siemens Hausgeräte GmbH Hotte aspirante
WO2008113664A3 (fr) * 2007-03-20 2009-08-20 Bsh Bosch Siemens Hausgeraete Hotte aspirante
CN101646904B (zh) * 2007-03-20 2011-09-07 Bsh博施及西门子家用器具有限公司 抽油烟机
WO2009024513A1 (fr) * 2007-08-22 2009-02-26 BSH Bosch und Siemens Hausgeräte GmbH Boîtier d'une hotte aspirante avec une fente de sortie d'air
WO2009024505A1 (fr) * 2007-08-22 2009-02-26 BSH Bosch und Siemens Hausgeräte GmbH Boîtier de hotte aspirante
WO2018094784A1 (fr) * 2016-11-25 2018-05-31 广东威灵电机制造有限公司 Hotte de cuisine
CN106594830A (zh) * 2016-12-16 2017-04-26 美的集团股份有限公司 排烟装置
CN106594831A (zh) * 2016-12-16 2017-04-26 美的集团股份有限公司 射流拢烟装置及排烟装置
CN106594830B (zh) * 2016-12-16 2019-04-30 美的集团股份有限公司 排烟装置
CN106594831B (zh) * 2016-12-16 2019-04-30 美的集团股份有限公司 射流拢烟装置及排烟装置
CN108870480A (zh) * 2017-05-08 2018-11-23 青岛有屋科技有限公司 一种新式橱柜底板及其控制方法
WO2021031449A1 (fr) * 2019-08-22 2021-02-25 美的集团股份有限公司 Hotte
CN110631106A (zh) * 2019-10-16 2019-12-31 曾堙堙 一种往复螺旋自吸式油烟机

Also Published As

Publication number Publication date
EP1757864A3 (fr) 2013-12-25
EP1757864B1 (fr) 2015-05-06

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