CN110220228A - A kind of smoke machine cruise boosting method and kitchen ventilator - Google Patents
A kind of smoke machine cruise boosting method and kitchen ventilator Download PDFInfo
- Publication number
- CN110220228A CN110220228A CN201810172193.7A CN201810172193A CN110220228A CN 110220228 A CN110220228 A CN 110220228A CN 201810172193 A CN201810172193 A CN 201810172193A CN 110220228 A CN110220228 A CN 110220228A
- Authority
- CN
- China
- Prior art keywords
- smoke machine
- flue
- gear
- detection module
- current value
- 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
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)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Ventilation (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The present invention relates to a kind of smoke machine cruise boosting method and kitchen ventilators, belong to Kitchen Ventilator and Cooking Stove technical field, by the way that smoke machine to be built-in with to the current detection module with motor communication connection, the actual current value of the current detection module real-time detection smoke machine and the gear of smoke machine, and judge the jam situation of flue to be pressurized to smoke machine according to actual current value and corresponding gear.The revolving speed of smoke machine can not accurately be adjusted according to the stopping state of common flue in the prior art by avoiding, furthermore, the present embodiment realizes the cruise function of increasing pressure of smoke machine by using the method for smoke machine cruise pressurization, is not necessarily to user's multi-pass operation, has liberated the both hands of user.The accuracy for improving motor speed control has liberated control of the both hands on range hood and has improved the practical operation effect of user, the range hood of wisdom is brought for user.
Description
Technical field
The present invention relates to Kitchen Ventilator and Cooking Stove technical field more particularly to a kind of smoke machine cruise boosting methods and kitchen ventilator.
Background technique
Common flue refers to the vertical smokejack in house for kitchen discharge oil smoke and cooking exhaust gas.Built is big
Most residential quarters are the air draft ability for improving ventilation shaft, prevent dirty gas crossfire, are worn toilet and kitchen are all vertically arranged
The ventilation shaft of more each floor installs exhaust fan and smoke exhaust ventilator for the flue gas of each floor toilet and kitchen by resident oneself
After collection, discharge is concentrated.Flue reduces kitchen pollution harm, improves indoor sanitation condition for improving air quality in house
One of the important means of have important role, and improve indoor air quality.
Under shared gas-flue system, the number of number of users can bring very big influence to the unobstructed of common flue, especially
It is in the Morning Afternoon Evening meal period, the range hood that each family's large area is opened can bring very big influence, public cigarette to common flue
The increase of gas pressure be easy to cause certain family's range hood smoke discharging effect poor in road, or even occurs flowing backward the result of cigarette.
But if negatively influencing can be caused to family kitchen smoke discharging effect period common flue of cooking is obstructed.It is existing
The revolving speed that range hood adjusts motor in blower relies primarily on the subjective control of people, by manually adjusting speed switch.Artificial control
System speed regulation can not scientifically and accurately judge the stopping state in common flue.
Summary of the invention
It is an object of the invention to propose a kind of smoke machine cruise boosting method and kitchen ventilator, be able to solve in the prior art by
It is obstructed in common flue and lead to the technical issues of negatively influencing is caused to family kitchen smoke discharging effect.
To achieve this purpose, the present invention adopts the following technical scheme:
A kind of smoke machine cruise boosting method, smoke machine are built-in with the current detection module with motor communication connection, the electric current
The actual current value of detection module real-time detection smoke machine and the gear of smoke machine, and judged according to actual current value and corresponding gear
The jam situation of flue is to be pressurized smoke machine.
As optimal technical scheme, the actual current value of the current detection module real-time detection smoke machine, and according to reality
Current value and corresponding gear judge the jam situation of flue to be pressurized to smoke machine, comprising the following steps:
The actual current value of current detection module real-time detection smoke machine and the gear of smoke machine；
According to the gear of actual current value and smoke machine judge flue whether congestion；
When flue is in congestion status, current detection module controls smoke machine according to the congestion status of flue and improves to corresponding
Otherwise gear keeps original gear constant；
After smoke machine improves the gear predetermined time, current detection module detects the actual current value of motor whether when default
Persistently reach pre-set current value in long, if so, restoring otherwise to keep turning for existing gear to the corresponding revolving speed of original gear
Speed is constant.
As optimal technical scheme, smoke machine setting is including high, medium and low there are three gear, and each gear is corresponding with one
Current standard value.
As optimal technical scheme, the congestion status of flue includes three kinds: slight congestion status, congestion status and seriously being gathered around
Stifled state.
As optimal technical scheme, the congestion status of flue is judged according to actual current and corresponding gear, comprising:
Under smoke machine is in high-grade, in continuous duration, when actual current value is less than the 80% of high-grade current standard value, judgement
Heavy congestion state is in for flue；
Smoke machine is under middle-grade, in continuous duration, when actual current value is less than the 80% of the current standard value of middle-grade, and judgement
Flue is in moderate congestion status；
Under flue is in low-grade, in continuous duration, when actual current value is less than the 80% of low-grade current standard value, judgement
Flue is in slight congestion status.
As optimal technical scheme, when the flue is in slight congestion status, current detection module controls motor
Revolving speed improves revolving speed corresponding to middle-grade, to be pressurized to air duct.
As optimal technical scheme, when the flue is in moderate congestion status, current detection module controls motor
Revolving speed is improved to high-grade corresponding revolving speed, to be pressurized to air duct.
As optimal technical scheme, when the flue is in severity congestion status, current detection module controls motor
Revolving speed improve, to be pressurized to air duct.
As optimal technical scheme, the preset duration is 1min, and the predetermined time is 3min.
The present invention also provides a kind of kitchen ventilators, using above-mentioned smoke machine cruise boosting method.
Beneficial effects of the present invention:
The present invention provides a kind of smoke machine cruise boosting method and kitchen ventilator, smoke machine cruise boosting method passes through in smoke machine
It is built-in with the current detection module with motor communication connection, the actual current value of the current detection module real-time detection smoke machine,
To realize the cruise function to common flue, and judge the jam situation of flue with right according to actual current value and corresponding gear
Smoke machine is pressurized, to realize the cruise function of increasing pressure of smoke machine.Avoiding in the prior art can not be according to the stifled of common flue
Plug situation accurately adjusts the revolving speed of smoke machine, in addition, the present embodiment is realized by using the method for smoke machine cruise pressurization
The cruise function of increasing pressure of smoke machine is not necessarily to user's multi-pass operation, and improves the accuracy of motor speed control, has liberated both hands
Control on range hood and the practical operation effect of user is improved, the range hood of wisdom is brought for user.
Detailed description of the invention
Fig. 1 is the flow chart of smoke machine cruise boosting method provided by the invention；
Fig. 2 is the detailed flow chart of smoke machine cruise boosting method provided by the invention；
Fig. 3 is the flow chart for the congestion status that smoke machine provided by the invention judges flue.
Specific embodiment
In order to make those skilled in the art more fully understand technical solution of the present invention, with reference to the accompanying drawing and by specific
Embodiment to further illustrate the technical scheme of the present invention.
A kind of smoke machine cruise boosting method is present embodiments provided, as shown in Figure 1, smoke machine cruise boosting method includes:
Smoke machine is built-in with the current detection module with motor communication connection, the actual current of the current detection module real-time detection smoke machine
The gear of value and smoke machine, and judge the jam situation of flue to increase to smoke machine according to actual current value and corresponding gear
Pressure.
The present embodiment by smoke machine it is built-in can with the detection module of motor communication connection so that current detection module
Be capable of the actual current value of real-time detection smoke machine with realize smoke machine to the cruise function of common flue, and according to actual current value and
Corresponding gear judges the jam situation of flue, is pressurized to the air duct of smoke machine, and then realizes the cruise function of increasing pressure of smoke machine,
The revolving speed of smoke machine can not accurately be adjusted according to the stopping state of common flue in the prior art by avoiding, in addition, this
Embodiment is not necessarily to user's multi-pass operation by using the method for smoke machine cruise pressurization, has liberated the both hands of user.Improve motor
The accuracy of revolving speed control has liberated control of the both hands on range hood and has improved the practical operation effect of user, has been
User brings the range hood of wisdom.
Smoke machine cruise boosting method provided in this embodiment, as shown in Fig. 2, specifically includes the following steps:
Step 1: the actual current value of current detection module real-time detection smoke machine and the gear of smoke machine.
The present embodiment assesses the wind pressure in common flue by using the mode of real-time detection electric current, and controls cigarette
The revolving speed of machine, to avoid the congestion due to common flue and lead to the situation of the smoke discharging effect difference in kitchen.
Since smoke machine setting is there are three gear, including it is high, medium and low, each gear is corresponding with a current standard value,
Before the step 1, correcting current detection module is needed, the corresponding current standard value of each gear to adjust smoke machine, for after
The continuous judgement to smoke machine jam situation provides data sample.Since the smoke machine use environment of different user is different, common flue
Situation of discharging fume is also different, by increasing calibration function, so that smoke machine can adapt in different user environments.It needs to illustrate
It is that user needs the peak period cooked that is staggered to be corrected smoke machine, is assessed with improving smoke machine to the wind pressure of common flue
When accuracy；It requires to be corrected when in addition, not needing to current detection module and use smoke machine every time, ordinary circumstance
Under, only it is corrected before the first use of smoke machine.
Step 2: according to the gear of actual current value and smoke machine judge flue whether congestion；Wherein, the congestion status of flue
Including three kinds: slight congestion status, congestion status and heavy congestion state.
The present embodiment judges the congestion status of flue according to actual current and corresponding gear, as shown in figure 3, at smoke machine
Under top grade, when actual current value is less than the 80% of high-grade current standard value in continuous duration, it is judged as that flue is in serious
Congestion status；When smoke machine is under middle-grade, in continuous duration, when actual current value is less than the 80% of the current standard value of middle-grade,
Judge that flue is in moderate congestion status；Under flue is in low-grade, in continuous duration, actual current value is less than low-grade electric current
Standard value 80% when, judge that flue is in slight congestion status.When the actual current value of smoke machine does not meet above-mentioned three kinds of shapes
State, then it represents that flue not congestion, at this point, smoke machine keeps former gear constant, the corresponding revolving speed and wind speed of the blower in smoke machine are also protected
It holds constant.Above-mentioned continuous duration is set as 3s, accurately to detect the jam situation of flue, to be effectively prevented from due to public
Flue congestion and cause kitchen ventilator smoke evacuation difference situation, wherein the present embodiment is not construed as limiting continuous duration.
It should be noted that the congestion status of flue is not limited to slight congestion status, congestion status and heavy congestion state
These three states, can also increase or decrease the type of congestion status, and the present embodiment is not construed as limiting this.
Step 3: when flue is in congestion status, current detection module controls smoke machine according to the congestion status of flue and mentions
Otherwise up to corresponding gear keeps original gear constant.As shown in figure 3, when the flue is in slight congestion status, electricity
The revolving speed of stream detection module control motor improves revolving speed corresponding to middle-grade, increases wind speed, to be pressurized to air duct.Work as institute
When stating flue and being in moderate congestion status, the revolving speed of current detection module control motor is improved to high-grade corresponding revolving speed, makes wind
Speed increases, to be pressurized to air duct；When the flue is in severity congestion status, current detection module improves motor
Revolving speed increases wind speed, to be pressurized to air duct.The revolving speed that motor in blower is improved by the gear of raising smoke machine, from
And the wind pressure in flue is improved, and then improve the smoke discharging effect of smoke machine, the case where smoke machine flows backward cigarette can be effectively prevented from.
Step 4: after smoke machine improves the gear predetermined time, whether the actual current value of current detection module detection motor
Persistently reach pre-set current value in preset duration, if so, restoring otherwise to keep existing to the corresponding revolving speed of original gear
The revolving speed of gear is constant.Preset duration is set as 1min by the present embodiment, the predetermined time will be set as 3min, and be needed to illustrate
It is that the present embodiment is not construed as limiting preset duration and predetermined time, other numerical value can also be set as.Specifically, when electric current is examined
When survey module detects that the continuous 3s of the actual current value of motor is less than the 80% of corresponding gear current standard value, current detection module
Control smoke machine improves gear and is pressurized, and after smoke machine improves gear 3min, current detection module detects the actual current of motor
Whether value persistently reaches 80% or more of corresponding gear current standard value in 1min, if it is, restore to original gear,
Otherwise, keep existing gear constant.
After smoke machine enters boost mode, if each gear is manually operated, smoke machine exits automatic cruising boost mode, 3min
If detecting the condition for meeting pressurization afterwards, smoke machine is again introduced into automatic cruising boost mode.Wherein, the present embodiment is pre- by setting
It fixes time, avoids smoke machine frequent switching gear.
It should be noted that current detection module provided in this embodiment includes current detection circuit, current detecting electricity
Road is electrically connected with motor, in addition, the current detection circuit by current transformer detect electric motor loop electric current, by high current at
Ratio is converted into low current, in case single-chip microcontroller can acquire, and converts voltage signal for current signal；It is carried out by diode
Rectification, filtering have been also effectively prevented from high-pressure electrostatic or disturbing pulse destroy with smooth voltage；In addition, the current detection circuit
Metering function also is played to single-chip microcontroller.
The present embodiment additionally provides a kind of kitchen ventilator, and the kitchen ventilator is using above-mentioned smoke machine cruise boosting method.This implementation
Example is cruised boosting method by using above-mentioned smoke machine, the case where capable of accurately monitoring the wind pressure in common flue, and passes through tune
The wind speed for saving smoke machine, is pressurized the air duct of smoke machine.
Independent key had both can be set in the kitchen ventilator, to trigger the cruise function of increasing pressure of smoke machine, can also be not provided with by
Key.When independent key is arranged, after opening automatic cruising function, smoke machine can be increased automatically according to the jam situation of flue
Pressure, it should be noted that after smoke machine enters boost mode, if each gear is manually operated, smoke machine exits automatic cruising pressurization mould
Formula, after preset time, if detecting the condition for meeting pressurization, smoke machine is again introduced into automatic cruising boost mode, Ke Yiyou
The case where avoiding smoke machine frequent switching gear to effect；When being not provided with independent key, after opening smoke machine, smoke machine is automatically according to cigarette
The jam situation in road is pressurized.
Note that the above shows and describes the basic principles and main features of the present invention and the advantages of the present invention.The industry
Technical staff it should be appreciated that the present invention is not limited to the embodiments described above, described in above embodiment and specification
Merely illustrate the principles of the invention, without departing from the spirit and scope of the present invention, the present invention also have various change and
It improves, these changes and improvements all fall within the protetion scope of the claimed invention, and claimed range of the invention is by appended
Claims and its equivalent thereof.
Claims (10)
- The boosting method 1. a kind of smoke machine cruises, which is characterized in that smoke machine is built-in with the current detection module with motor communication connection, The actual current value of the current detection module real-time detection smoke machine and the gear of smoke machine, and according to actual current value and accordingly Gear judges the jam situation of flue to be pressurized to smoke machine.
- The boosting method 2. smoke machine according to claim 1 cruises, which is characterized in that the current detection module real-time detection The actual current value of smoke machine, and judge the jam situation of flue to increase to smoke machine according to actual current value and corresponding gear Pressure, comprising the following steps:The actual current value of current detection module real-time detection smoke machine and the gear of smoke machine；According to the gear of actual current value and smoke machine judge flue whether congestion；When flue is in congestion status, current detection module controls smoke machine according to the congestion status of flue and improves to corresponding shelves Position, otherwise, keeps original gear constant；After smoke machine improves the gear predetermined time, current detection module detects the actual current value of motor whether in preset duration Persistently reach pre-set current value, if so, restoring otherwise to keep the revolving speed of existing gear not to the corresponding revolving speed of original gear Become.
- The boosting method 3. smoke machine according to claim 2 cruises, which is characterized in that there are three gears for smoke machine setting, including High, medium and low, each gear is corresponding with a current standard value.
- The boosting method 4. smoke machine according to claim 3 cruises, which is characterized in that the congestion status of flue includes three kinds: Slight congestion status, congestion status and heavy congestion state.
- The boosting method 5. smoke machine according to claim 4 cruises, which is characterized in that according to actual current and corresponding gear Judge the congestion status of flue, comprising:Under smoke machine is in high-grade, in continuous duration, when actual current value is less than the 80% of high-grade current standard value, it is judged as cigarette Road is in heavy congestion state；Smoke machine is under middle-grade, in continuous duration, when actual current value is less than the 80% of the current standard value of middle-grade, judges flue In moderate congestion status；Under flue is in low-grade, in continuous duration, when actual current value is less than the 80% of low-grade current standard value, flue is judged In slight congestion status.
- The boosting method 6. smoke machine according to claim 5 cruises, which is characterized in that when the flue is in slight congestion shape When state, the revolving speed of current detection module control motor improves revolving speed corresponding to middle-grade, to be pressurized to air duct.
- The boosting method 7. smoke machine according to claim 5 cruises, which is characterized in that when the flue is in moderate congestion shape When state, the revolving speed of current detection module control motor is improved to high-grade corresponding revolving speed, to be pressurized to air duct.
- The boosting method 8. smoke machine according to claim 5 cruises, which is characterized in that when the flue is in severity congestion When state, the revolving speed that current detection module controls motor is improved, to be pressurized to air duct.
- The boosting method 9. smoke machine according to claim 2 cruises, which is characterized in that the preset duration is 1min, described Predetermined time is 3min.
- 10. a kind of kitchen ventilator, which is characterized in that using any smoke machine cruise boosting method of claim 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810172193.7A CN110220228A (en) | 2018-03-01 | 2018-03-01 | A kind of smoke machine cruise boosting method and kitchen ventilator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810172193.7A CN110220228A (en) | 2018-03-01 | 2018-03-01 | A kind of smoke machine cruise boosting method and kitchen ventilator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110220228A true CN110220228A (en) | 2019-09-10 |
Family
ID=67821828
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810172193.7A Pending CN110220228A (en) | 2018-03-01 | 2018-03-01 | A kind of smoke machine cruise boosting method and kitchen ventilator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110220228A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110529910A (en) * | 2019-09-30 | 2019-12-03 | 珠海格力电器股份有限公司 | A kind of range hood control method and range hood |
| CN110553297A (en) * | 2019-09-30 | 2019-12-10 | 佛山市顺德区美的洗涤电器制造有限公司 | Control method of range hood and range hood |
| CN110594825A (en) * | 2019-10-16 | 2019-12-20 | 珠海格力电器股份有限公司 | Range hood and control method thereof |
| CN111998413A (en) * | 2020-09-08 | 2020-11-27 | 华帝股份有限公司 | Control method for self-adaptive air volume adjustment and range hood applying control method |
| CN112377961A (en) * | 2020-10-20 | 2021-02-19 | 华帝股份有限公司 | Central flue air volume control method and system |
| CN112460814A (en) * | 2020-11-10 | 2021-03-09 | 华帝股份有限公司 | Control method for wind speed self-adaption of direct-current variable-frequency gas water heater |
| CN113357688A (en) * | 2021-07-27 | 2021-09-07 | 杭州老板电器股份有限公司 | Central range hood system control method and device and central range hood system |
| CN114234251A (en) * | 2021-12-17 | 2022-03-25 | 杭州老板电器股份有限公司 | Flue state identification method and device of range hood |
| WO2023093343A1 (en) * | 2021-11-29 | 2023-06-01 | 青岛海尔智慧厨房电器有限公司 | Control method and control system for range hood |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206338832U (en) * | 2016-11-18 | 2017-07-18 | 杭州老板电器股份有限公司 | A kind of blast detection automatic speed regulation circuit of lampblack absorber |
| CN107101234A (en) * | 2017-04-24 | 2017-08-29 | 广东万家乐燃气具有限公司 | A kind of adaptive Wind-Pressure Resistance system of range hood |
-
2018
- 2018-03-01 CN CN201810172193.7A patent/CN110220228A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206338832U (en) * | 2016-11-18 | 2017-07-18 | 杭州老板电器股份有限公司 | A kind of blast detection automatic speed regulation circuit of lampblack absorber |
| CN107101234A (en) * | 2017-04-24 | 2017-08-29 | 广东万家乐燃气具有限公司 | A kind of adaptive Wind-Pressure Resistance system of range hood |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110529910A (en) * | 2019-09-30 | 2019-12-03 | 珠海格力电器股份有限公司 | A kind of range hood control method and range hood |
| CN110553297A (en) * | 2019-09-30 | 2019-12-10 | 佛山市顺德区美的洗涤电器制造有限公司 | Control method of range hood and range hood |
| CN110594825A (en) * | 2019-10-16 | 2019-12-20 | 珠海格力电器股份有限公司 | Range hood and control method thereof |
| CN111998413A (en) * | 2020-09-08 | 2020-11-27 | 华帝股份有限公司 | Control method for self-adaptive air volume adjustment and range hood applying control method |
| CN112377961A (en) * | 2020-10-20 | 2021-02-19 | 华帝股份有限公司 | Central flue air volume control method and system |
| CN112377961B (en) * | 2020-10-20 | 2022-11-15 | 华帝股份有限公司 | Central flue air volume control method and system |
| CN112460814A (en) * | 2020-11-10 | 2021-03-09 | 华帝股份有限公司 | Control method for wind speed self-adaption of direct-current variable-frequency gas water heater |
| CN113357688A (en) * | 2021-07-27 | 2021-09-07 | 杭州老板电器股份有限公司 | Central range hood system control method and device and central range hood system |
| CN113357688B (en) * | 2021-07-27 | 2022-05-31 | 杭州老板电器股份有限公司 | Central range hood system control method and device and central range hood system |
| WO2023093343A1 (en) * | 2021-11-29 | 2023-06-01 | 青岛海尔智慧厨房电器有限公司 | Control method and control system for range hood |
| CN114234251A (en) * | 2021-12-17 | 2022-03-25 | 杭州老板电器股份有限公司 | Flue state identification method and device of range hood |
| CN114234251B (en) * | 2021-12-17 | 2023-07-25 | 杭州老板电器股份有限公司 | Flue state identification method and device of smoke machine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110220228A (en) | A kind of smoke machine cruise boosting method and kitchen ventilator | |
| CN110500625B (en) | Building outdoor auxiliary smoke discharging and purifying system and control method thereof | |
| CN103267328B (en) | A kind of intelligent air quality safeguards system and control method thereof | |
| CN209295231U (en) | A kind of central flue system | |
| CN203396006U (en) | Intelligent air quality assurance system | |
| CN104879842A (en) | Split air conditioner with fresh air purification intelligent control device | |
| CN105757909B (en) | A kind of air purifier autocontrol method | |
| CN111102613A (en) | Central flue system and air quantity adjusting method thereof | |
| CN106051875A (en) | Extractor hood with automatically controlled gears | |
| CN209295229U (en) | A kind of kitchen chimney flue system | |
| CN106287889B (en) | The rotation speed of fan Automatic adjustment method of range hood and the regulating device for realizing this method | |
| CN102589025A (en) | Fan speed adaptive regulation device of range hood and control method thereof | |
| CN207065682U (en) | Air port flow control system | |
| CN110375344B (en) | Building flue kitchen oil fume purification system and control method | |
| CN105546603A (en) | Range hood and wind speed and wind pressure sensor for range hood | |
| CN105351991A (en) | Monitoring device for oil fume sucking state of range hood and monitoring method for monitoring device | |
| CN113266857A (en) | Fresh air system capable of being intelligently linked with household range hood | |
| CN103697517A (en) | Intelligent variable-frequency range hood | |
| CN205227466U (en) | Wind pressure control type range hood | |
| CN204830170U (en) | Take new trend to purify intelligent control device's components of a whole that can function independently air conditioner | |
| CN204153923U (en) | A kind of Automatic Control stepless time adjustment New-air purifying system | |
| CN203349345U (en) | Control device for reducing cooking oil fume | |
| CN106149835B (en) | Ventilator and method for removing odor of ventilator | |
| CN105485742A (en) | Air speed and air pressure sensor for extractor hood and extractor hood | |
| CN210292022U (en) | Intelligent energy-concerving and environment-protective petticoat pipe |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190910 |