CN107763690A - Range hood and control method thereof - Google Patents
Range hood and control method thereof Download PDFInfo
- Publication number
- CN107763690A CN107763690A CN201710899219.3A CN201710899219A CN107763690A CN 107763690 A CN107763690 A CN 107763690A CN 201710899219 A CN201710899219 A CN 201710899219A CN 107763690 A CN107763690 A CN 107763690A
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- China
- Prior art keywords
- control device
- blower fan
- range hood
- detection means
- concentration
- 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 17
- 238000001514 detection method Methods 0.000 claims abstract description 72
- 239000000779 smoke Substances 0.000 claims abstract description 42
- 238000007599 discharging Methods 0.000 claims description 10
- 238000012935 Averaging Methods 0.000 claims description 3
- 238000012360 testing method Methods 0.000 claims description 3
- 230000000052 comparative effect Effects 0.000 claims description 2
- 238000010304 firing Methods 0.000 claims description 2
- 239000007789 gas Substances 0.000 description 6
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 3
- 230000001960 triggered effect Effects 0.000 description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- 239000006096 absorbing agent Substances 0.000 description 2
- 235000019504 cigarettes Nutrition 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003546 flue gas Substances 0.000 description 2
- 239000003517 fume Substances 0.000 description 2
- 239000006233 lamp black Substances 0.000 description 2
- 241000628997 Flos Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010411 cooking Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000009790 rate-determining step (RDS) Methods 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
- F24C15/2021—Arrangement or mounting of control or safety systems
Landscapes
- Engineering & Computer Science (AREA)
- Ventilation (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
Abstract
The invention provides a range hood and a control method thereof, wherein the range hood comprises an indoor flue, a control device and a fan, wherein the indoor flue is internally provided with a detection device connected with the control device, and the control device is used for controlling the fan according to the detection result of the detection device when the fan is in a shutdown state. The range hood and the control method can effectively prevent smoke in the public flue from flowing back into the indoor flue, prevent peculiar smell and oil smoke in a kitchen, ensure fresh and natural air in the kitchen and improve user experience.
Description
Technical field
The present invention relates to machine for kitchen use field, and in particular to a kind of range hood and its control method.
Background technology
Kitchen fume can have undesirable effect to the body of people, and range hood can be effectively improved kitchen fume problem.
Existing range hood is in order to prevent from oil smoke from pouring in down a chimney being typically provided with twice defence line, first, range hood stops itself with air-out
Inverse valve；Second, install droop check (non-return) valve additional in exit flue mouth.
Nonetheless, the situation of taint of odour still occurs in kitchen, main cause is the air-out check (non-return) valve of lampblack absorber oneself
All it is to open valve block by the wind-force effect of range hood with the droop check (non-return) valve of floss hole is arranged on, utilizes valve block itself
Deadweight or installation elastic component close valve block.In order to ensure that the wind-force of range hood can blow valve block open, the weight of valve block or
The elastic force of elastic component can not be excessive.Therefore, range hood is present because valve block closing forces are smaller, causes situation about being not closed completely.By
It is operated in range hood full of in the environment of greasy dirt, valve block is influenceed after being sticked together by greasy dirt, opens not in place cause
Air draft is not smooth during fume-exhausting, and closing is not in place easily to cause common flue oil smoke to pour in down a chimney.
In addition, the air-out check (non-return) valve that existing range hood carries has a circumferential weld between valve block and valve body, the circumferential weld class
The gap like existing under door closure state at the hinge, when the neighbours around user open range hood work, common flue
Interior local pressure increases, and oil smoke pours in down a chimney into user family from circumferential weld nearby, causes even if kitchen of not cooking also to have in user family
Oil smoke taste, Consumer's Experience are bad.
The content of the invention
In view of this, an object of the present invention be to provide it is a kind of can eliminate oil smoke pour in down a chimney problem range hood and
Its control method.
To reach above-mentioned purpose, on the one hand, the present invention uses following technical scheme：
A kind of range hood, the range hood includes internal flue, control device and blower fan, in the internal flue
The detection means being connected with the control device is provided with, the control device is used for the root when the blower fan is in stopped status
The blower fan is controlled according to the testing result of the detection means.
Preferably, the internal flue includes the smoke discharging structure of tubular, and the smoke discharging structure connects with common flue, described
Detection means is arranged on the inwall of the smoke discharging structure.
Preferably, the detection means includes flow detection unit, and the flow detection unit is used to detect the interior
Air flow rate in flue.
Preferably, the control device includes storage element, and preset flow value, the control are stored in the storage element
Device processed is used for when the air flow rate of flow detection unit detection is more than or equal to the preset flow value described in control
Blower fan is opened.
Preferably, the control device also includes computing unit and timing unit, and the computing unit is used for pre- to first
The air flow rate of flow detection unit detection is averaged in the range of fixing time, the control device by the average value with
The preset flow value is compared to be controlled to the blower fan.
Preferably, the detection means includes concentration detecting unit, and the concentration detecting unit is used to detect the interior
Oil smoke concentration in flue.
For the above-mentioned purpose, on the other hand, the present invention uses following technical scheme：
A kind of control method being controlled to range hood as described above, shutdown shape is in the blower fan of range hood
During state, the detection means is detected, when the parameter value of detection means detection is more than or equal to preset value, the control
Device processed controls the blower fan to open.
Preferably, the blower fan is opened and after continuous firing scheduled duration, and the control device controls the blower fan to close.
Preferably, the detection means includes flow detection unit, and the control device is according to the flow detection unit
The air flow rate of detection is controlled to the blower fan.
Preferably, the control device carries out calculating of averaging to the air flow rate that the flow detection unit detects,
By obtained average value compared with the preset flow value being pre-stored in the control device, and according to comparative result to described
Blower fan is controlled.
Preferably, the detection means includes concentration detecting unit, and the control device is according to the concentration detecting unit
The oil smoke concentration of detection is controlled to the blower fan.
Preferably, the oil smoke concentration and be pre-stored in the control that the control device detects the concentration detecting unit
Preset concentration in device is compared, when the oil smoke concentration is more than or equal to the preset concentration, the control device
The blower fan is controlled to open.
Preferably, after the control device controls the blower fan to open, the control device is examined according to the detection means
The size of the parameter value of survey controls the rotating speed of the blower fan.
Beneficial effect：Range hood and control method in the present invention can effectively prevent the flue gas in common flue from pouring in down a chimney
Enter in internal flue, avoid kitchen from peculiar smell and oil smoke occur, ensure with fresh air naturally, lifting Consumer's Experience in kitchen.
Brief description of the drawings
By the description to the embodiment of the present invention referring to the drawings, above-mentioned and other purpose of the invention, feature and
Advantage will be apparent from.
Fig. 1 is structural representation of the range hood of specific embodiment of the invention offer in the case where flue gas pours in down a chimney state；
Fig. 2 is the flow chart that the specific embodiment of the invention provides control method.
In figure：
1st, wind cabinet；2nd, blower fan；3rd, smoke discharging structure；4th, detection means；5th, control device；6th, check (non-return) valve.
Embodiment
Below based on embodiment, present invention is described, it should be understood by one skilled in the art that provided herein
Accompanying drawing is provided to the purpose of explanation, and accompanying drawing is not necessarily drawn to scale.
Unless the context clearly requires otherwise, otherwise entire disclosure is similar with the " comprising " in claims, "comprising" etc.
Word should be construed to the implication included rather than exclusive or exhaustive implication；That is, it is containing for " including but is not limited to "
Justice.
Range hood in the application includes the detection means being disposed in the interior in flue, detection means and control device phase
Even, detection means detects when blower fan is in stopped status to the gaseous state in internal flue, and control device is according to inspection
Survey result to be controlled blower fan, to prevent the gas in common flue from pouring in down a chimney in internal flue.At blower fan in the application
Two kinds of situations are included in stopped status, are not worked although a kind of situation is range hood blower fan, other parts are still working,
For example the lamp of range hood is opened.During second of situation, control device and the detection means work of range hood, remainder is not
Work, this situation range hood are in holding state, it is generally the case that it is believed that the holding state is closed mode.
As shown in figure 1, be range hood disclosed in the present application, including wind cabinet 1, blower fan 2, blower fan 2 are provided with wind cabinet 1
It is connected with control device 5, control device 5 can control blower fan to open and rotate or shut down, and can control the rotating speed of blower fan 2.
The smoke discharging structure 3 of wind cabinet 1 and tubular is collectively forming the internal flue of range hood, and smoke discharging structure 3 is connected with common flue, smoke evacuation
Droop check (non-return) valve 6 is provided between structure 3 and common flue, check (non-return) valve 6 is used to separate common flue and internal flue.In room
Detection means 4 is provided with inner flue, detection means 4 is connected with control device 5, and detection means 4 is used to detect in internal flue
Oil smoke concentration in the state of gas, such as the temperature of the flow of gas, gas, gas etc., and the parameter value detected is passed
Control device 5 is defeated by, control device 5 is controlled according to the parameter value that detection means 4 detects to blower fan 2.Shown in Fig. 1
In embodiment, detection means 4 is arranged on the inwall of smoke discharging structure 3, and control device 5 is arranged on the top of wind cabinet 1.
Further, detection means includes flow detection unit, and flow detection unit is used to detect the gas in internal flue
Flow is flowed, when blower fan is in stopped status, control device control detection means detects the air flow rate in internal flue in real time,
The air flow rate value that control device receiving detection device detects.It is single that control device includes computing unit, timing unit and storage
Member, after timing unit starts first scheduled time of timing, computing unit is asked once the air flow rate that detection means detects
Average value, obtain flow average value.When flow average value is more than or equal to the preset flow value in storage element, illustrate public cigarette
Oil smoke in road has poured in down a chimney in internal flue, and now, control device control blower fan is opened, and the oil smoke in internal flue is carried out
Remove.Detection means is preferably flowmeter or airspeedometer in the above-described embodiment, preset flow value 0.8-1.2m3/ min,
First scheduled time was 15s -25s.Because oil smoke circulates in common flue and internal flue throughout the year, therefore flue indoors
With substantial amounts of greasy dirt has been gathered in common flue, even if not producing oil smoke pours in down a chimney phenomenon, also had in internal flue diffusion it is fuel-displaced
Smoke road, influences Consumer's Experience.Therefore, as long as air is indoors in flue and when flow exceedes preset flow value, oil will be allowed
The diffusion of smoke road is purged, it is necessary to open blower fan to greasy smell, and oil smoke is that mixing is aerial, therefore detection means detects
Be air in internal flue flow.
Detection means also includes concentration detecting unit, and concentration detecting unit is used to detect the oil smoke concentration in internal flue,
Under fan parking state, detection means is detected in real time, and control is stored in when the oil smoke concentration in internal flue is more than or equal to
During preset concentration in the storage element of device processed, control device control blower fan is opened, specifically, preset concentration 0.08mg/
m3—0.12mg/m3.Preferably, the first preset concentration and the second preset concentration can also be preset in storage device, when indoor cigarette
When oil smoke concentration in road is more than the first preset concentration, control device controls blower fan with the first rotary speed working, when in internal flue
Oil smoke concentration when being more than the second preset concentration, control device controls blower fan with the second rotary speed working.Concentration detecting unit detects
The essence of oil smoke concentration in internal flue be detect internal flue in PM2.5 numerical value, selection can detect formaldehyde or
PM2.5 detector.
Preferably, detection means detects oil smoke concentration and air flow rate in internal flue simultaneously, on one of both meets
When stating the condition that can open blower fan, control device control blower fan is opened.After blower fan opens operation scheduled duration, control device control
Fan parking processed.
As a kind of preferably embodiment, functional switch is provided with range hood, when functional switch is triggered,
Control device default user is wanted unlatching implementation monitoring function and poured in down a chimney with preventing oil smoke, then, range hood is in standby
Fan parking under state, control device control detection means are detected in real time.If functional switch is not triggered, then inhales
Lampblack absorber is in real closed mode, i.e., no any part is operated, then control device and detection means will not
Detected in real time.
As shown in Fig. 2 disclosed herein as well is a kind of range hood control method, above-mentioned range hood is controlled.
Specific rate-determining steps are as follows：
S01, functional switch are triggered
S02, control device judge whether blower fan is closed
If the determination result is YES, then S03 is performed, if it is not, then control device continues to judge.
S03, control device control flow detection unit detect the air flow rate in internal flue in real time
S04, control device are averaged to air flow rate, obtain flow average value
In a specific embodiment, control device detects for the detection means in the range of first scheduled time
Air flow rate averaged
S05, control device judge whether flow average value is more than or equal to preset flow value
If so, S06 is then performed, if it is not, then control device control flow detection unit continues to detect in real time.
S06, control device control blower fan open operation scheduled duration
S07, control device control fan parking
For those skilled in the art it is easily understood that on the premise of not conflicting, above-mentioned each preferred scheme can be free
Ground combination, superposition.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for those skilled in the art
For, the present invention can have various changes and change.All any modifications made within spirit and principles of the present invention, it is equal
Replace, improve etc., it should be included in the scope of the protection.
Claims (13)
1. a kind of range hood, it is characterised in that the range hood includes internal flue, control device and blower fan, described
The detection means being connected with the control device is provided with internal flue, the control device, which is used to be in the blower fan, to stop
The blower fan is controlled according to the testing result of the detection means during machine state.
2. range hood according to claim 1, it is characterised in that the internal flue includes the smoke discharging structure of tubular,
The smoke discharging structure is connected with common flue, and the detection means is arranged on the inwall of the smoke discharging structure.
3. range hood according to claim 1, it is characterised in that the detection means includes flow detection unit, institute
Flow detection unit is stated to be used to detect the air flow rate in the internal flue.
4. range hood according to claim 3, it is characterised in that the control device includes storage element, the storage
Preset flow value is stored in memory cell, the control device is used for when the air flow rate of flow detection unit detection is more than
Or the blower fan is controlled to open during equal to the preset flow value.
5. range hood according to claim 4, it is characterised in that the control device also includes computing unit and timing
Unit, the computing unit are used to be averaging the air flow rate of the flow detection unit detection in the range of first scheduled time
Value, the control device is by the average value to be controlled to the blower fan compared with the preset flow value.
6. range hood according to claim 1, it is characterised in that the detection means includes concentration detecting unit, institute
Concentration detecting unit is stated to be used to detect the oil smoke concentration in the internal flue.
A kind of 7. control method that range hood to as described in any one of claim 1 to 6 is controlled, it is characterised in that
When the blower fan of range hood is in off-mode, the detection means is detected, when the parameter of detection means detection
When value is more than or equal to preset value, the control device controls the blower fan to open.
8. control method according to claim 7, it is characterised in that the blower fan is opened and continuous firing scheduled duration
Afterwards, the control device controls the blower fan to close.
9. control method according to claim 8, it is characterised in that the detection means includes flow detection unit, institute
Control device is stated to be controlled the blower fan according to the air flow rate that the flow detection unit detects.
10. control method according to claim 9, it is characterised in that the control device is to the flow detection unit
The air flow rate of detection carries out calculating of averaging, by obtained average value and the preset flow being pre-stored in the control device
Value is compared, and the blower fan is controlled according to comparative result.
11. the control method according to claim 7 or 8, it is characterised in that the detection means includes Concentration Testing list
Member, the control device are controlled according to the oil smoke concentration that the concentration detecting unit detects to the blower fan.
12. control method according to claim 11, it is characterised in that the control device is by the concentration detecting unit
The oil smoke concentration detected be more than compared with the preset concentration being pre-stored in the control device, when the oil smoke concentration or
During equal to the preset concentration, the control device controls the blower fan to open.
13. the control method according to claim 7 or 8, it is characterised in that the control device controls the blower fan to open
Afterwards, the size for the parameter value that the control device detects according to the detection means controls the rotating speed of the blower fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710899219.3A CN107763690A (en) | 2017-09-28 | 2017-09-28 | Range hood and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710899219.3A CN107763690A (en) | 2017-09-28 | 2017-09-28 | Range hood and control method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107763690A true CN107763690A (en) | 2018-03-06 |
Family
ID=61267340
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710899219.3A Pending CN107763690A (en) | 2017-09-28 | 2017-09-28 | Range hood and control method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107763690A (en) |
Cited By (7)
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|---|---|---|---|---|
| CN109780601A (en) * | 2017-11-13 | 2019-05-21 | 博西华电器（江苏）有限公司 | A kind of kitchen ventilator and its control method |
| CN109855139A (en) * | 2019-02-25 | 2019-06-07 | 珠海格力电器股份有限公司 | Range hood control method and system |
| CN110186089A (en) * | 2019-05-19 | 2019-08-30 | 宁波方太厨具有限公司 | A kind of series connection two fans type range hood and its flow control methods |
| CN110186088A (en) * | 2019-05-19 | 2019-08-30 | 宁波方太厨具有限公司 | A kind of series connection two fans type range hood and its flow control methods |
| CN111207421A (en) * | 2018-11-21 | 2020-05-29 | 宁波方太厨具有限公司 | Preset angle control method for flue check valve of high-rise building |
| CN112612313A (en) * | 2020-12-22 | 2021-04-06 | 青岛海尔空调器有限总公司 | Control method and device for air conditioning equipment, electronic equipment and storage medium |
| CN117387111A (en) * | 2023-12-04 | 2024-01-12 | 佛山净微科技有限公司 | PM2.5 detection module and have its cigarette machine |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109780601A (en) * | 2017-11-13 | 2019-05-21 | 博西华电器（江苏）有限公司 | A kind of kitchen ventilator and its control method |
| CN109780601B (en) * | 2017-11-13 | 2021-05-04 | 博西华电器（江苏）有限公司 | Range hood and control method thereof |
| CN111207421A (en) * | 2018-11-21 | 2020-05-29 | 宁波方太厨具有限公司 | Preset angle control method for flue check valve of high-rise building |
| CN111207421B (en) * | 2018-11-21 | 2022-03-18 | 宁波方太厨具有限公司 | Preset angle control method for flue check valve of high-rise building |
| CN109855139A (en) * | 2019-02-25 | 2019-06-07 | 珠海格力电器股份有限公司 | Range hood control method and system |
| CN110186089A (en) * | 2019-05-19 | 2019-08-30 | 宁波方太厨具有限公司 | A kind of series connection two fans type range hood and its flow control methods |
| CN110186088A (en) * | 2019-05-19 | 2019-08-30 | 宁波方太厨具有限公司 | A kind of series connection two fans type range hood and its flow control methods |
| CN110186089B (en) * | 2019-05-19 | 2024-02-20 | 宁波方太厨具有限公司 | Series double-fan type range hood and flow control method thereof |
| CN110186088B (en) * | 2019-05-19 | 2024-02-20 | 宁波方太厨具有限公司 | Series double-fan type range hood and flow control method thereof |
| CN112612313A (en) * | 2020-12-22 | 2021-04-06 | 青岛海尔空调器有限总公司 | Control method and device for air conditioning equipment, electronic equipment and storage medium |
| CN117387111A (en) * | 2023-12-04 | 2024-01-12 | 佛山净微科技有限公司 | PM2.5 detection module and have its cigarette machine |
| CN117387111B (en) * | 2023-12-04 | 2024-03-22 | 佛山净微科技有限公司 | PM2.5 detection module and have its cigarette machine |
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