CN108758752A - Kitchen ventilator and its control method - Google Patents
Kitchen ventilator and its control method Download PDFInfo
- Publication number
- CN108758752A CN108758752A CN201810975952.3A CN201810975952A CN108758752A CN 108758752 A CN108758752 A CN 108758752A CN 201810975952 A CN201810975952 A CN 201810975952A CN 108758752 A CN108758752 A CN 108758752A
- Authority
- CN
- China
- Prior art keywords
- baffle
- flow
- kitchen ventilator
- air
- wind deflector
- 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
- 238000000034 method Methods 0.000 title claims abstract description 11
- 238000007664 blowing Methods 0.000 claims abstract description 4
- 238000005192 partition Methods 0.000 claims description 30
- 239000000779 smoke Substances 0.000 claims description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 8
- 238000004140 cleaning Methods 0.000 abstract description 5
- 238000004026 adhesive bonding Methods 0.000 abstract description 3
- 239000003921 oil Substances 0.000 description 21
- 230000000694 effects Effects 0.000 description 7
- 238000001514 detection method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 239000012208 gear oil Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002000 scavenging effect Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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
-
- 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
- F24C15/2021—Arrangement or mounting of control or safety systems
Abstract
The invention discloses a kind of kitchen ventilator and its control methods.Kitchen ventilator includes shell, it is provided with air inlet on the shell, smog can enter the enclosure interior by the air inlet, wind deflector is formed on the kitchen ventilator, the wind deflector can carry out water conservancy diversion to smog, smog is made to flow to the air inlet, the kitchen ventilator further includes supply air system, the supply air system in the wind deflector for blowing, and to form air film in the wind deflector, the air film is for separating smog and the wind deflector.Kitchen ventilator provided by the invention, is provided with supply air system, is blown in wind deflector by supply air system and forms air film, and smog is isolated by air film, prevents smog from directly being contacted with wind deflector, so as to reduce the greasy dirt for gluing and paying in wind deflector.Enable kitchen ventilator to reduce the frequency and cleaning difficulty of cleaning, keeps user experience more preferable.
Description
Technical field
The present invention relates to air in kitchen processing equipment correlative technology field, especially a kind of kitchen ventilator and its control method.
Background technology
Side-suction type range hood have many advantages, such as not block vision, do not meet and discuss, favored in recent years by consumer, market part
Volume accounting is larger.The open-close type side-sucking oil smoke sucking machine that market was released in recent years has further promotion in terms of smoke absorption effect, opens
It is a grade oil smoke to close baffle main function, keeps the smoke discharging effect of kitchen ventilator more preferable.
But there is also a problems for folding baffle：It is opened at work since its inner surface plays the role of gear oil smoke
Closing the inner surface of baffle can directly contact with oil smoke, to keep inner surface greasy dirt relatively more.And since space inside is limited, and
Opening-closing plate can not be dismantled, or dismounting is inconvenient, makes it difficult to clean, and having oil droplet if having been grown such as scavenging period not in time falls, to use
Family brings very big worry.
Invention content
In view of this, an object of the present invention is to provide a kind of kitchen ventilator and its controlling party that can reduce by viscous pair of greasy dirt
Method.
In a first aspect, providing a kind of kitchen ventilator, including shell, air inlet is provided on the shell, smog can pass through
The air inlet enters the enclosure interior, is formed with wind deflector on the kitchen ventilator, the wind deflector can to smog into
Row water conservancy diversion makes smog flow to the air inlet,
The kitchen ventilator further includes supply air system, and the supply air system in the wind deflector for blowing, with described
Air film is formed in wind deflector, the air film is for separating smog and the wind deflector.
Preferably, baffle is provided on the shell, the baffle is movably disposed on the shell, the baffle
With the second position that will the air inlet closed first position and open the air inlet,
On the baffle wind deflector is constituted close to the first face of the shell.
Preferably, the supply air system includes wind turbine and first flow, outlet and the first flow of the wind turbine
First end is connected, and the second end of the first flow is blown in the wind deflector.
Preferably, on the assembling to the shell, the wind turbine is located at the top of the shell, the wind turbine
Entrance is upward.
Preferably, upward, air-flow flows up to form institute below the wind deflector for the outlet of the second end
State air film.
Preferably, the first flow is configured to flexible pipe, and the second end of the first flow is fixed on the baffle.
Preferably, the baffle interior forms cavity, and the cavity constitutes second flow channel, the second end of the first flow
It is connected to the upside of the baffle and is connected to the second flow channel,
The lower part setting of the baffle is formed with the air outlet being connected to the second flow channel, and the air outlet is towards upper
Side keeps the air-flow of the air outlet blowout dynamic along the first surface current of the baffle.
Preferably, partition board is provided on the baffle, the partition board is connected on the first face of the baffle, the partition board
Face far from the baffle constitutes the wind deflector, forms cavity between the partition board and the baffle, and the cavity constitutes the
Two runners, the supply air system are blown by the second flow channel in the wind deflector.
Preferably, between the edge on the downside of the partition board and the baffle there are gap, the gas in the second flow channel
Stream is flowed out by the gap, and flow-guiding structure is provided on the downside of the partition board, and the flow-guiding structure is used for described second
The air-flow of runner outflow is oriented to, and makes air-flow along the separator flow.
Preferably, the flow-guiding structure includes guide plate, and the one side edge of the guide plate is connected on the baffle, and with institute
State baffle formed at an angle setting, the gap between the partition board and the baffle between the guide plate and the baffle,
The air outlet of the second flow channel is formed between the guide plate and the partition board.
Preferably, the flow-guiding structure and the baffle are integrally formed.
Second aspect provides a kind of control method of above-mentioned kitchen ventilator, and the control method includes：
When the kitchen ventilator is opened, the supply air system is opened and is blown to the wind deflector, when the kitchen ventilator is closed,
The supply air system is closed.
Preferably, the air output of the supply air system is determined according to oil smoke concentration.
Kitchen ventilator provided by the invention, is provided with supply air system, is blown in wind deflector by supply air system and forms air film,
Smog is isolated by air film, prevents smog from directly being contacted with wind deflector, so as to reduce the greasy dirt for gluing and paying in wind deflector.Make
The frequency and cleaning difficulty of cleaning can be reduced by obtaining kitchen ventilator, keep user experience more preferable.
Description of the drawings
By referring to the drawings to the description of the embodiment of the present invention, the above and other purposes of the present invention, feature and
Advantage will be apparent from, in the accompanying drawings：
Fig. 1 shows the structural schematic diagram of kitchen ventilator provided by the invention；
Fig. 2 shows kitchen ventilator use state diagrams；
Fig. 3 shows the schematic cross-section of kitchen ventilator use state；
Fig. 4 shows baffle and the schematic cross-section of supply air system；
Fig. 5 shows baffle and the structural schematic diagram of supply air system；
Fig. 6 shows in Fig. 4 enlarged drawing at A.
Specific implementation mode
Below based on embodiment, present invention is described, but the present invention is not restricted to these embodiments.Ability
Domain it is to be appreciated by one skilled in the art that provided herein attached drawing be provided to explanation purpose, and attached drawing be not necessarily by than
What example was drawn.
Unless the context clearly requires otherwise, "include", "comprise" otherwise throughout the specification and claims etc. are similar
Word should be construed as the meaning for including rather than exclusive or exhaustive meaning；That is, being containing for " including but not limited to "
Justice.
In the description of the present invention, it is to be understood that, term " first ", " second " etc. are used for description purposes only, without
It can be interpreted as indicating or implying relative importance.In addition, in the description of the present invention, unless otherwise indicated, the meaning of " multiple "
It is two or more.
As shown in Figure 1, 2, kitchen ventilator provided by the invention includes shell 1, and baffle 2 and air draft are provided on the shell 1
Channel 3, is additionally provided with air inlet 11 on the shell 1, the baffle 2 be movably disposed on the shell 1 with it is described into
The opposite position in air port 11, and the baffle 2 has the first position (as shown in Figure 1) for blocking the air inlet 11, and
The second position (as shown in Figure 2) that the air inlet 11 is opened.Air duct is formed in the shell 1, the air duct is connected to institute
Air inlet 11 and the air exhaust passage 3 are stated, blower fan system is additionally provided with inside the air duct, the blower fan system is for providing drive
Power flows out after so that air-flow is then flowed through the air exhaust passage 3 from the inflow of the air inlet 11.The shell 3 further includes front
Plate 4, the front panel 4 are configured to when the baffle 2 is located at the first position, and the front panel 4 is located at the baffle 2
In same plane, also, the front panel 4 is located at the lower section of the baffle 2, i.e., the described front panel 4 is located at the air inlet 11
Lower section, can be arranged on the front panel 4 for realizing the component of the functions such as control, display.
As shown in figure 3, when the baffle 2 is located at the second position, the baffle 2 and 4 place of the front panel
Angle α is formed between plane, the value range of the angle α is 30-60 degree, it is preferable that the size of the angle α makes described
Plate washer 2 is too small to avoid the angle α in second position state in a vertical shape, causes windproof effect bad, alternatively, described
Angle α is excessive, and the baffle 2 is made to occupy excessive space.
As shown in Figure 3,4, the kitchen ventilator further includes supply air system 5, and the supply air system 5 can be used for the kitchen ventilator
On wind deflector up-draught, the wind deflector is configured to when the kitchen ventilator works, can to enter the air inlet 11 it
Preceding smoke flow carries out water conservancy diversion or carries out the face of barrier effect to smoke flow, and the wind deflector can be formed in the shell
On part-structure on body 1, for example, exhaust fume collecting hood inner wall, alternatively, the wind deflector is additionally formed in other structures, such as
In the present embodiment, the wind deflector is formed on the baffle 2 and (introduces in detail below).
When the kitchen ventilator works, the supply air system 5 works asynchronously to the wind deflector up-draught, so that in institute
It states and forms air film in wind deflector, the air film can separate smog and the wind deflector, to avoid oil smoke from keeping out the wind with described
Face is in direct contact, and then is avoided gluing in the wind deflector and paid greasy dirt, is also to ensure that the cleaning of the wind deflector, it is possible to reduce
Artificial clean number, or manually the wind deflector need not be cleaned.
As shown in Figure 4,5, in the present embodiment, the first face of the baffle 2 constitutes institute (i.e. close to the face of the shell 1)
Wind deflector is stated, the supply air system 5 is dried towards the first face of the baffle 2, and makes first surface current of the air-flow along the baffle 2
It is dynamic, so that forming air film on the first face of the baffle 2.The supply air system 5 includes first flow 51 and wind turbine 52,
The wind turbine 52 is arranged far from the position for generating oil smoke, such as is arranged at the top of the shell 1, to avoid the wind turbine
52 can suck the gas containing oil smoke.The outlet of the wind turbine 52 is connected with the entrance of the first flow 51, described first-class
The outlet in road 51 is on the first face of the baffle 2, and under the action of the wind turbine 52, the air-flow passes through described first-class
Road 51 is blown on the first face of the baffle 2, and dynamic along the first surface current of the baffle 2, in the first face of the baffle 2
The air film of oil smoke can be isolated by being formed, it is preferable that the outlet end of the first flow 51 is fixed on the baffle 2, further
Ground, the first flow 51 are configured to hose, can be deformed upon as the baffle 2 moves.Preferably, in order to make air-flow more
Adding uniformly, the outlet of the first flow 51 is set to elongated outlet, and is extended along the edge of the baffle 2, with
It allows the flow to flow along the entire surface in the first face of the baffle 2.Further, the outlet setting of the first flow 51
In the downside of the baffle 2, and outlet air upward, i.e., the first flow 51 outlet so that the baffle 2 the first face
On the gas flow direction of air film of formation be from lower toward flowing, to make the flow direction of the air film and the kitchen ventilator
Flowing to for the smog of sucking is identical, and then the air film is made also to have the function of water conservancy diversion, more conducively smog stream to the flowing of smog
To the air inlet 11.
Preferably, second flow channel 53, the second flow channel 53 and described first are provided on the first face of the baffle 2
Runner 51 is connected to, and the entrance of the second flow channel 53 is located at the upside of the baffle 2 so that the entrance of the second flow channel 53 and
The wind turbine 2 apart from smaller, so as to so that the first flow 51 length smaller, to make the supply air system 5 account for
With the space smaller in the kitchen ventilator.Partition board 531, the partition board 531 and the gear are provided on first face of the baffle 2
Setting spaced apart between plate 2, the space between the partition board 531 and the baffle 2 constitute the second flow channel 53, this
When, the partition board 531 constitutes the wind deflector.As shown in fig. 6, between the edge and the baffle 2 of 531 downside of the partition board
There are gap, the gap extends along the edge of the partition board 531, and the downside of the partition board 531 is provided with water conservancy diversion knot
Structure, the flow-guiding structure carry out water conservancy diversion to the outlet air of the second flow channel 53.The flow-guiding structure is preferably configured as guide plate 532,
The guide plate 532 extends along the edge of the partition board 531, and the one side edge of the guide plate 532 is connected on the baffle 2, and
The setting of angle is formed with the baffle 2.Gap between the partition board 531 and the baffle 2 is located at the guide plate 532 and institute
Between stating baffle 2, the guide plate 532 has lap with the partition board 531, and spaced apart between lap,
The setting of the guide plate 532 makes the air outlet that the second flow channel 53 is formed between the partition board 531 and the guide plate 532, and
And the air outlet of the second flow channel 53 is upward, and the air-flow of blowout is made to be flowed along the partition board 531.Preferably, described to lead
Plate 532 is configured to curved slab, so that water conservancy diversion effect is more preferable.Preferably at one, in embodiment, the guide plate 532 can be arranged
For the integral structure by being bent to form on the baffle 2.Further, between the partition board 531 and the baffle 2
And/or throat structure is formed between the partition board 531 and the guide plate 532, i.e., the spacing in exit reduces, to improve out wind pressure
Power, to make air velocity faster, the effect that smog is isolated is more preferable.
In other embodiments, the second flow channel 53 is additionally formed in inside the baffle 2, i.e., by the baffle 2
It is set as the structure of inner hollow, the space inside the baffle 2 constitutes the second flow channel 53, can make the oil smoke in this way
The overall structure of machine is simpler.
Preferably, the supply air system 5 is controlled by the control system of the kitchen ventilator, can be with kitchen ventilator
Blower fan system synchronous working.The specific control method of the kitchen ventilator includes：When the baffle 2 moves to the second position
When, the blower fan system of the kitchen ventilator is opened, and air draft is carried out, and the supply air system 5, which synchronizes, opens.Further, the oil smoke
Machine is provided with oil smoke detection device, and the oil smoke detection device can detect the concentration of oil smoke, and can transmit detection data
To the control system, the control system controls the blower fan system according to oil smoke concentration and/or the supply air system works,
For example, when oil smoke concentration is big, the rotation speed of fan for controlling the blower fan system improves, to improve exhaust air rate, i.e., in the unit interval
Exhaust air rate, while control the supply air system 5 wind turbine 52 rotating speed improve, to improve air output, i.e., in the unit interval
Air output；Alternatively, when oil smoke concentration is small, controlling the blower fan system rotation speed of fan reduces, while controlling the supply air system 5
52 rotating speed of wind turbine reduce；Alternatively, the air-supply system can also be controlled separately through the detection data of the oil smoke detection device
System 5, the blower fan system is by manually controlling.
Kitchen ventilator provided by the invention is by being arranged supply air system so that air film is formed in the wind deflector of kitchen ventilator, from
And oil smoke is avoided directly to be contacted with wind deflector, greasy dirt is viscous to be paid onto wind deflector to be reduced or avoided, and is reduced and is cleaned to kitchen ventilator
Workload.Also, water conservancy diversion can also be carried out to the flowing of oil smoke by air film, more conducively oil smoke is flowed into wind turbine, makes smoke evacuation
Effect is more preferable.
Those skilled in the art will readily recognize that under the premise of not conflicting, above-mentioned each preferred embodiment can be free
Ground combination, superposition.
It should be appreciated that above-mentioned embodiment is merely exemplary, and not restrictive, without departing from the basic of the present invention
In the case of principle, those skilled in the art can be directed to the various apparent or equivalent modification or replace that above-mentioned details be made
It changes, is all included in scope of the presently claimed invention.
Claims (13)
1. a kind of kitchen ventilator, which is characterized in that including shell, air inlet is provided on the shell, smog can be by described
Air inlet enters the enclosure interior, and wind deflector is formed on the kitchen ventilator, and the wind deflector can lead smog
Stream, makes smog flow to the air inlet,
The kitchen ventilator further includes supply air system, and the supply air system in the wind deflector for blowing, to keep out the wind described
Air film is formed on face, the air film is for separating smog and the wind deflector.
2. kitchen ventilator according to claim 1, which is characterized in that be provided with baffle on the shell, the baffle can live
It is arranged dynamicly on the housing, the baffle has the closed first position of the air inlet and opens the air inlet
The second position,
On the baffle wind deflector is constituted close to the first face of the shell.
3. kitchen ventilator according to claim 2, which is characterized in that the supply air system includes wind turbine and first flow, institute
The outlet for stating wind turbine is connected with the first end of the first flow, and the second end of the first flow is blown in the wind deflector
Gas.
4. kitchen ventilator according to claim 3, which is characterized in that on the assembling to the shell, the wind turbine
Positioned at the top of the shell, the entrance of the wind turbine is upward.
5. kitchen ventilator according to claim 3, which is characterized in that upward, air-flow is from institute for the outlet of the second end
It states and flows up to form the air film below wind deflector.
6. kitchen ventilator according to claim 3, which is characterized in that the first flow is configured to flexible pipe, and described first
The second end of runner is fixed on the baffle.
7. kitchen ventilator according to claim 3, which is characterized in that the baffle interior forms cavity, and the cavity is constituted
The second end of second flow channel, the first flow is connected to the upside of the baffle and is connected to the second flow channel,
The lower part setting of the baffle is formed with the air outlet being connected to the second flow channel, and the air outlet upward, makes
The air-flow of the air outlet blowout is dynamic along the first surface current of the baffle.
8. kitchen ventilator according to claim 2, which is characterized in that be provided with partition board, the partition board connection on the baffle
Onto the first face of the baffle, face of the partition board far from the baffle constitutes the wind deflector, the partition board and the gear
Form cavity between plate, the cavity constitutes second flow channel, and the supply air system is by the second flow channel to the wind deflector
Upper air blowing.
9. kitchen ventilator according to claim 8, which is characterized in that between the edge and the baffle on the downside of the partition board
There are gap, the air-flow in the second flow channel is flowed out by the gap, and flow-guiding structure is provided on the downside of the partition board,
The air-flow that the flow-guiding structure is used to flow out the second flow channel is oriented to, and makes air-flow along the separator flow.
10. kitchen ventilator according to claim 9, which is characterized in that the flow-guiding structure includes guide plate, and the one of the guide plate
Lateral edges are connected on the baffle, and with the baffle formed at an angle setting, between the partition board and the baffle between
Gap forms the air outlet of the second flow channel between the guide plate and the baffle between the guide plate and the partition board.
11. kitchen ventilator according to claim 9, which is characterized in that the flow-guiding structure is integrally formed with the baffle.
12. the control method of the kitchen ventilator described in a kind of one of claim 1-11, which is characterized in that the control method packet
It includes：
When the kitchen ventilator is opened, the supply air system is opened and is blown to the wind deflector, described when the kitchen ventilator is closed
Supply air system is closed.
13. control method according to claim 12, which is characterized in that the air output of the supply air system is dense according to oil smoke
Degree determines.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810975952.3A CN108758752A (en) | 2018-08-24 | 2018-08-24 | Kitchen ventilator and its control method |
| JP2020572814A JP7269966B2 (en) | 2018-08-24 | 2018-12-24 | Range hood and its control method |
| PCT/CN2018/123014 WO2020037911A1 (en) | 2018-08-24 | 2018-12-24 | Range hood and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810975952.3A CN108758752A (en) | 2018-08-24 | 2018-08-24 | Kitchen ventilator and its control method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108758752A true CN108758752A (en) | 2018-11-06 |
Family
ID=63966589
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810975952.3A Pending CN108758752A (en) | 2018-08-24 | 2018-08-24 | Kitchen ventilator and its control method |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP7269966B2 (en) |
| CN (1) | CN108758752A (en) |
| WO (1) | WO2020037911A1 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109654568A (en) * | 2019-01-26 | 2019-04-19 | 珠海格力电器股份有限公司 | A kind of smoke deflector, kitchen ventilator and its lead cigarette control method |
| WO2020037911A1 (en) * | 2018-08-24 | 2020-02-27 | 珠海格力电器股份有限公司 | Range hood and control method thereof |
| CN110887079A (en) * | 2019-11-07 | 2020-03-17 | 宁波方太厨具有限公司 | Fume exhaust fan |
| CN113883559A (en) * | 2021-09-30 | 2022-01-04 | 北京航空航天大学 | Active air film protection long-acting cleaning-free smoke exhaust ventilator |
| CN114593450A (en) * | 2022-05-09 | 2022-06-07 | 杭州老板电器股份有限公司 | Range hood curtain device, range hood and control method thereof |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114110690B (en) * | 2021-11-17 | 2024-04-05 | 河南中管环境科技研究院 | Lampblack catalytic decomposition processing apparatus |
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| CN208936224U (en) * | 2018-08-24 | 2019-06-04 | 珠海格力电器股份有限公司 | Kitchen ventilator |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2020037911A1 (en) * | 2018-08-24 | 2020-02-27 | 珠海格力电器股份有限公司 | Range hood and control method thereof |
| CN109654568A (en) * | 2019-01-26 | 2019-04-19 | 珠海格力电器股份有限公司 | A kind of smoke deflector, kitchen ventilator and its lead cigarette control method |
| CN110887079A (en) * | 2019-11-07 | 2020-03-17 | 宁波方太厨具有限公司 | Fume exhaust fan |
| CN113883559A (en) * | 2021-09-30 | 2022-01-04 | 北京航空航天大学 | Active air film protection long-acting cleaning-free smoke exhaust ventilator |
| CN114593450A (en) * | 2022-05-09 | 2022-06-07 | 杭州老板电器股份有限公司 | Range hood curtain device, range hood and control method thereof |
| CN114593450B (en) * | 2022-05-09 | 2022-08-16 | 杭州老板电器股份有限公司 | Range hood curtain device, range hood and control method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JP7269966B2 (en) | 2023-05-09 |
| WO2020037911A1 (en) | 2020-02-27 |
| JP2021530661A (en) | 2021-11-11 |
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