CN103542439B - Smoke exhaust ventilator and its control method - Google Patents
Smoke exhaust ventilator and its control method Download PDFInfo
- Publication number
- CN103542439B CN103542439B CN201210249079.2A CN201210249079A CN103542439B CN 103542439 B CN103542439 B CN 103542439B CN 201210249079 A CN201210249079 A CN 201210249079A CN 103542439 B CN103542439 B CN 103542439B
- Authority
- CN
- China
- Prior art keywords
- motor
- rotational frequency
- speed
- rated rotational
- actual speed
- 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.)
- Active
Links
Landscapes
- Control Of Electric Motors In General (AREA)
- Control Of Positive-Displacement Air Blowers (AREA)
- Ventilation (AREA)
Abstract
The present invention proposes a kind of smoke exhaust ventilator and its control method.Smoke exhaust ventilator proposed by the present invention, including motor and control device, the control device is used for the rotating speed for controlling the motor, in addition to speed detector, sent for detecting the actual speed of the motor under current gear, and by the actual speed to the control device；The control device internal memory contain each gear distinguish corresponding to motor rated rotational frequency；The control device, the rated rotational frequency corresponding to the actual speed and current gear received by comparison is additionally operable to, if actual speed is less than corresponding rated rotational frequency, heightens the rotating speed of the motor；If actual speed is more than corresponding rated rotational frequency, the rotating speed of the motor is turned down.So, the rotating speed of the motor is adjusted according to the difference condition between the rated rotational frequency corresponding to actual speed and current gear, the influence of specific use environment or foozle to the actual speed of fume exhauster motor can be overcome to a certain extent.
Description
【Technical field】
The present invention relates to smoke exhaust ventilator field.
【Background technology】
Range hood is also known as smoke exhaust ventilator, is a kind of kitchen appliance for purifying kitchen environment.It is arranged on cooking stove in kitchen
Top, caused harmful oil smoke in cooking process can be taken away rapidly, purify the air of a room, and have gas defence, anti-
Quick-fried safety guarantee effect.
The specifically used environmental difference of smoke exhaust ventilator is huge, such as the difference of the difference on air draft length of tube, for another example common flue
It is different, and for example difference of cleaning situation of screen pack etc..And the difference of use environment, the smoke exhaust ventilator of same model can be caused same
The rotating speed of corresponding motor is different in different use environments under one gear.Further, since various errors be present in manufacture link,
It will also result between the rated rotational frequency corresponding to actual speed and current gear of the smoke exhaust ventilator under a certain gear and deviation be present.
So-called rated rotational frequency, refer to the design speed that smoke exhaust ventilator should reach under commonly used environment under particular gears.Can be with
Say how to overcome the skill being had differences between actual speed and corresponding rated rotational frequency of the fume exhauster motor under a certain gear
Art problem, it is the problem urgently to be resolved hurrily of this area one.
Support that otherwise prior art described here is not an admission that these prior arts unless there are the evidence of abundance
Before the filing date of the present application for known in the those of ordinary skill of the field that the invention relates to.
【The content of the invention】
It is a primary object of the present invention to for above-described at least one technical problem, propose a kind of new oil pumping
Cigarette machine and its control method.
The present invention proposes a kind of smoke exhaust ventilator, including motor and control device, and the control device is used to control the electricity
The rotating speed of machine, in addition to speed detector, for detecting the actual speed of the motor under current gear, and by this actual turn
Speed is sent to the control device；The control device internal memory contain each gear distinguish corresponding to motor rated rotational frequency；Institute
Control device is stated, the rated rotational frequency corresponding to the actual speed and current gear received by comparison is additionally operable to, if actual speed
Less than corresponding rated rotational frequency, then the rotating speed of the motor is heightened；If actual speed is more than corresponding rated rotational frequency, institute is turned down
State the rotating speed of motor.So, adjusted according to the difference condition between the rated rotational frequency corresponding to actual speed and current gear
The rotating speed of the motor, the reality of specific use environment or foozle to fume exhauster motor can be overcome to a certain extent
The influence of border rotating speed, lift the intelligent level of smoke exhaust ventilator.Pay attention to, " rated rotational frequency corresponding to current gear " is referred to as
" corresponding rated rotational frequency ".
Optionally, the control device, it is additionally operable to, when actual speed is with corresponding rated rotational frequency difference, adjust the electricity
The rotating speed of machine, make up to corresponding rated rotational frequency.
Optionally, the control device internal memory contains pre-set threshold value；The control device, be additionally operable to when actual speed with it is right
When the rated rotational frequency the difference between the two answered exceedes the pre-set threshold value, the rotating speed of the motor is adjusted, is in the difference between the two
Within the pre-set threshold value." exceeding ", refer to be more than.
Optionally, the control device, it is additionally operable to when actual speed is less than corresponding rated rotational frequency, then heighten gear；
When actual speed is more than corresponding rated rotational frequency, then gear is turned down.
Optionally, the control device internal memory contains pre-set threshold value；The control device, it is additionally operable to when actual speed is less than
Corresponding rated rotational frequency and when the difference between the two exceedes the pre-set threshold value, heightens gear；When actual speed is more than corresponding standard
Rotating speed and when the difference between the two exceedes the pre-set threshold value, turns down gear.
Optionally, the control device internal memory contains pre-set threshold value；The control device, it is additionally operable to when actual speed is less than
Corresponding rated rotational frequency and when the difference between the two exceedes the pre-set threshold value, heightens the rotating speed of the motor；When actual speed is more than
Corresponding rated rotational frequency and when the difference between the two exceedes the pre-set threshold value, turns down the rotating speed of the motor.
Optionally, the speed detector includes magnet ring and Hall sensor；The magnet ring is arranged at the motor
On rotor.
Optionally, user's operation device is additionally provided with, for the pre-set threshold value to be set and/or repaiied for user
Change.
Optionally, display device is additionally provided with, for showing the actual speed of the motor under current gear.So, use
Family can easily know the actual speed of the motor, further lift the intelligent level of smoke exhaust ventilator.
The present invention also proposes a kind of smoke exhaust ventilator, including motor and control device, and the control device is used to controlling described
The rotating speed of motor, in addition to speed setting device, for setting motor speed for user, and the motor speed of the setting is sent
To the control device；The control device, it is additionally operable to after the motor speed of the setting is received, controls the motor to exist
Operated under the motor speed of the setting.This way it is possible to avoid specific use environment or manufacture under existing gear control model
Influence of the error to the actual speed of fume exhauster motor.
The present invention also proposes a kind of control method of smoke exhaust ventilator, and the smoke exhaust ventilator includes motor and control device, institute
The rotating speed that control device is used to control the motor is stated, is comprised the following steps：The reality for detecting the motor under current gear turns
Speed；Compare detected actual speed and the rated rotational frequency corresponding to the current gear being previously stored, if actual speed is less than
Corresponding rated rotational frequency, then heighten the rotating speed of the motor；If actual speed is more than corresponding rated rotational frequency, the electricity is turned down
The rotating speed of machine.So, described in being adjusted according to the difference condition between the rated rotational frequency corresponding to actual speed and current gear
The rotating speed of motor, specific use environment or foozle can be overcome to turn the reality of fume exhauster motor to a certain extent
The influence of speed, lift the intelligent level of smoke exhaust ventilator.
Optionally, it is further comprising the steps of：When actual speed is with corresponding rated rotational frequency difference, the motor is adjusted
Rotating speed, make up to corresponding rated rotational frequency.
Optionally, it is further comprising the steps of：It is previously stored when actual speed exceedes with corresponding rated rotational frequency the difference between the two
Pre-set threshold value when, adjust the rotating speed of the motor, the difference between the two is within pre-set threshold value.
Optionally, it is further comprising the steps of：When actual speed is less than corresponding rated rotational frequency, then gear is heightened；Work as reality
When border rotating speed is more than corresponding rated rotational frequency, then gear is turned down.
Optionally, it is further comprising the steps of：Rated rotational frequency and the difference between the two exceed prior corresponding to being less than when actual speed
During the pre-set threshold value of storage, gear is heightened；Rated rotational frequency and the difference between the two, which exceed, corresponding to being more than when actual speed is previously stored
Pre-set threshold value when, turn down gear.
Optionally, it is further comprising the steps of：Rated rotational frequency and the difference between the two exceed prior corresponding to being less than when actual speed
During the pre-set threshold value of storage, the rotating speed of the motor is heightened；When actual speed surpasses more than corresponding rated rotational frequency and the difference between the two
When crossing the pre-set threshold value being previously stored, the rotating speed of the motor is turned down.
The foregoing invention content of the present invention is not intended to all possible embodiments of the description present invention.Whole application
In, many places provide guidance by enumerating example, and these examples can be used for various feasible combinations.
【Brief description of the drawings】
The following drawings only makees schematic illustration and explanation to the present invention, not delimit the scope of the invention, wherein：
Fig. 1 is a kind of structural representation of the speed detector of smoke exhaust ventilator embodiment of the present invention；
Fig. 2 is the partial circuit schematic diagram of speed detector shown in Fig. 1；
Fig. 3 is the oscillogram that circuit shown in Fig. 2 is exported.
Explanation on reference in figure：
1- rotors, 2- magnet rings, 3- Hall sensors.
【Embodiment】
To make the purpose of the present invention, scheme and beneficial effect of greater clarity, below in conjunction with the accompanying drawings and it is preferable to carry out
The invention will be further described for example.Firstly the need of being explained, individual drawing figure may be not accurate enough, in such cases,
It should be defined by word description.
Embodiment 1
The present invention proposes a kind of smoke exhaust ventilator embodiment, and it includes motor, impeller, control device, GSS Gear Select Switch, use
Family operation device, display device and speed detector, control device are used for the rotating speed of controlled motor, and motor is then used for band movable vane
Wheel rotation.GSS Gear Select Switch, user's operation device, display device, speed detector are respectively connected to control dress
Put.
GSS Gear Select Switch, for for user carry out gear selection, and by the gear information selected by user send to
Control device.Control device, for after the gear information selected by user is received, then controlled motor to be transported under the gear
Turn.For the present embodiment, GSS Gear Select Switch is provided with low-grade, middle-grade and high-grade three gears, if user have selected middle-grade,
Then control device controlled motor operates under middle-grade.
Speed detector, sent for detecting the actual speed of motor under current gear, and by the actual speed to control
Device processed.The structural representation of speed detector is (Fig. 1 illustrate only the part-structure of speed detector) as shown in Figure 1,
It includes magnet ring 2 and Hall sensor 3；Magnet ring 2 is arranged on the rotor 1 of motor, is rotated with rotor 1；Hall sensor 3
Then it is fixedly installed.The partial circuit schematic diagram of speed detector is as shown in Fig. 2 when motor rotates, the output signal of the circuit
Waveform as shown in figure 3, when motor speed changes, the frequency of the output signal can also occur to change accordingly.Rotating speed is examined
Survey device and be based on the output signal, the actual speed of motor under current gear can be calculated.
Control device internal memory contain each gear distinguish corresponding to motor rated rotational frequency, specifically, low grade corresponding to electricity
The rated rotational frequency of machine is 800 revs/min, and the rated rotational frequency of motor corresponding to middle-grade is 1000 revs/min, motor corresponding to top grade
Rated rotational frequency be 1200 revs/min.Pre-set threshold value, i.e., 100 revs/min are also stored with control device.User's operation device,
For being modified for user to the pre-set threshold value.Control device, it is additionally operable to actual speed received by comparison and current
Rated rotational frequency corresponding to gear, if actual speed is less than corresponding rated rotational frequency, and actual speed and corresponding rated rotational frequency
When the difference between the two exceedes pre-set threshold value, then one step is heightened；If actual speed is more than corresponding rated rotational frequency, and actual speed
When exceeding pre-set threshold value with corresponding rated rotational frequency the difference between the two, then one step is turned down.For example user have selected low grade, then
Control device controlled motor operates under low grade, if the actual speed of motor is under the current gear that speed detector detects
680 revs/min, and the rated rotational frequency of motor corresponding to low grade is 800 revs/min, the actual speed under current gear with it is corresponding
Rated rotational frequency the difference between the two be 120 revs/min, the difference between the two has exceeded 100 revs/min of pre-set threshold value, then control device from
Dynamic to heighten one step, i.e. controlled motor operates under middle-grade；And if motor under the current gear that speed detector detects
Actual speed be 850 revs/min, and the rated rotational frequency of motor corresponding to low grade is 800 revs/min, the reality under current gear
Border rotating speed is 50 revs/min with corresponding rated rotational frequency the difference between the two, and the difference between the two is not above 100 revs/min of pre-set threshold value,
Then control device is not adjusted to gear, and motor continues to operate under low grade.
Display device, then the actual speed of motor under the current gear sent for receiving control device, and shown
Show.So, user can intuitively know the actual speed of motor under current gear.
It the above is only the preferred embodiments of the present invention, some technical characteristics, which are modified or replaced, can also obtain other
Embodiment.Such as, display device is directly connected also possible with speed detector.For another example, the quantity of gear, corresponding electricity
The rated rotational frequency of machine, pre-set threshold value are not limited with the present embodiment.
Embodiment 2
The present invention also proposes another smoke exhaust ventilator embodiment, including motor, impeller, display device, speed setting device
And control device.Control device is used for the rotating speed of controlled motor, and motor is then used for impeller and rotated.Speed setting device connects
In control device.Speed setting device, for setting motor speed for user, and the motor speed that user is set is sent to control
Device processed；Control device, it is additionally operable to after the motor speed of setting is received, controlled motor is transported under the motor speed of the setting
Turn.
The smoke exhaust ventilator is additionally provided with speed detector, for detecting the actual speed of motor, and by the actual speed
Send to control device.Control device, the motor speed for comparing actual speed and setting is additionally operable to, if actual speed and setting
Motor speed is different, then adjusts the rotating speed of motor, until the actual speed of the motor detected is identical with the motor speed set；
Hereafter, if actual speed and the motor speed of setting are different again, the rotating speed of motor is adjusted again, until the motor detected
Actual speed with set motor speed it is identical.
Display device, then it is used to receive and show the actual speed of motor.So, user can intuitively know motor
Actual speed.
It is that the present invention should not be construed as being limited to embodiment described above to need annotated, but
It should be understood that all possible performance for covering the claims in the present invention combination specification disclosure and determining.
Therefore, every content without departing from technical solution of the present invention, what the technical spirit according to the present invention was made to above example appoints
What simple modification equivalent variations and modification, belong to the protection domain of technical solution of the present invention.In particular, it is based on
Any protection domain for changing bad application, still falling within technical solution of the present invention of the present invention.
Claims (14)
1. a kind of smoke exhaust ventilator, including motor and control device, the control device is used for the rotating speed for controlling the motor, and it is special
Sign is：
Also include speed detector, sent out for detecting the actual speed of the motor under current gear, and by the actual speed
Deliver to the control device；
The control device internal memory contain each gear distinguish corresponding to motor rated rotational frequency；
The control device, the rated rotational frequency corresponding to the actual speed and current gear received by comparison is additionally operable to, if real
Border rotating speed is less than corresponding rated rotational frequency, then heightens the rotating speed of the motor；If actual speed is more than corresponding rated rotational frequency,
Turn down the rotating speed of the motor；
The control device, it is additionally operable to, when actual speed is with corresponding rated rotational frequency difference, adjust the rotating speed of the motor, make
Reach corresponding rated rotational frequency；If actual speed and corresponding rated rotational frequency are different again, the rotating speed of motor is adjusted again,
Until the actual speed of the motor detected is identical with corresponding rated rotational frequency.
2. smoke exhaust ventilator according to claim 1, it is characterised in that：
The control device internal memory contains pre-set threshold value；
The control device, it is additionally operable to when actual speed exceedes the pre-set threshold value with corresponding rated rotational frequency the difference between the two,
The rotating speed of the motor is adjusted, the difference between the two is within the pre-set threshold value.
3. smoke exhaust ventilator according to claim 1, it is characterised in that：
The control device, it is additionally operable to when actual speed is less than corresponding rated rotational frequency, then heighten gear；When actual speed is big
When corresponding rated rotational frequency, then gear is turned down.
4. smoke exhaust ventilator according to claim 1, it is characterised in that：
The control device internal memory contains pre-set threshold value；
The control device, it is additionally operable to when actual speed is less than corresponding rated rotational frequency and the difference between the two exceedes the pre-set threshold value
When, heighten gear；When actual speed is more than corresponding rated rotational frequency and the difference between the two exceedes the pre-set threshold value, shelves are turned down
Position.
5. smoke exhaust ventilator according to claim 1, it is characterised in that：
The control device internal memory contains pre-set threshold value；
The control device, it is additionally operable to when actual speed is less than corresponding rated rotational frequency and the difference between the two exceedes the pre-set threshold value
When, heighten the rotating speed of the motor；When actual speed exceedes the pre-set threshold value more than corresponding rated rotational frequency and the difference between the two
When, turn down the rotating speed of the motor.
6. smoke exhaust ventilator according to any one of claim 1 to 5, it is characterised in that：
The speed detector includes magnet ring (2) and Hall sensor (3)；
The magnet ring is arranged on the rotor (1) of the motor.
7. according to the smoke exhaust ventilator described in claim 2 or 4 or 5, it is characterised in that：
User's operation device is additionally provided with, for the pre-set threshold value to be set and/or changed for user.
8. smoke exhaust ventilator according to any one of claim 1 to 5, it is characterised in that：
Display device is additionally provided with, for showing the actual speed of the motor under current gear.
9. a kind of smoke exhaust ventilator, including motor and control device, the control device is used for the rotating speed for controlling the motor, and it is special
Sign is：
Also include speed setting device, for setting motor speed for user, and the motor speed of the setting is sent to described
Control device；
The control device, is additionally operable to after the motor speed of the setting is received, and controls the motor all the time in the setting
Motor speed under operate.
10. a kind of control method of smoke exhaust ventilator, the smoke exhaust ventilator includes motor and control device, and the control device is used for
Control the rotating speed of the motor, it is characterised in that comprise the following steps：
Detect the actual speed of the motor under current gear；
Compare detected actual speed and the rated rotational frequency corresponding to the current gear being previously stored, if actual speed is less than
Corresponding rated rotational frequency, then heighten the rotating speed of the motor；If actual speed is more than corresponding rated rotational frequency, the electricity is turned down
The rotating speed of machine；
When actual speed is with corresponding rated rotational frequency difference, the rotating speed of the motor is adjusted, corresponding standard is made up to and turns
Speed；If actual speed and corresponding rated rotational frequency are different again, the rotating speed of motor is adjusted again, until the motor detected
Actual speed is identical with corresponding rated rotational frequency.
11. the control method of smoke exhaust ventilator according to claim 10, it is characterised in that further comprising the steps of：
When actual speed exceedes the pre-set threshold value being previously stored with corresponding rated rotational frequency the difference between the two, the motor is adjusted
Rotating speed, the difference between the two is set to be within pre-set threshold value.
12. the control method of smoke exhaust ventilator according to claim 10, it is characterised in that further comprising the steps of：
When actual speed is less than corresponding rated rotational frequency, then gear is heightened；When actual speed is more than corresponding rated rotational frequency,
Then turn down gear.
13. the control method of smoke exhaust ventilator according to claim 10, it is characterised in that further comprising the steps of：
When actual speed is less than corresponding rated rotational frequency and the difference between the two exceedes the pre-set threshold value being previously stored, gear is heightened；
When actual speed is more than corresponding rated rotational frequency and the difference between the two exceedes the pre-set threshold value being previously stored, gear is turned down.
14. the control method of smoke exhaust ventilator according to claim 10, it is characterised in that further comprising the steps of：
When actual speed is less than corresponding rated rotational frequency and the difference between the two exceedes the pre-set threshold value being previously stored, the electricity is heightened
The rotating speed of machine；When actual speed is more than corresponding rated rotational frequency and the difference between the two exceedes the pre-set threshold value being previously stored, turn down
The rotating speed of the motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210249079.2A CN103542439B (en) | 2012-07-11 | 2012-07-11 | Smoke exhaust ventilator and its control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210249079.2A CN103542439B (en) | 2012-07-11 | 2012-07-11 | Smoke exhaust ventilator and its control method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103542439A CN103542439A (en) | 2014-01-29 |
| CN103542439B true CN103542439B (en) | 2018-01-09 |
Family
ID=49966155
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210249079.2A Active CN103542439B (en) | 2012-07-11 | 2012-07-11 | Smoke exhaust ventilator and its control method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103542439B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105465854A (en) * | 2014-08-28 | 2016-04-06 | 博西华电器（江苏）有限公司 | Smoke lampblack machine, controlling device, and controlling method for smoke lampblack machine |
| CN105674358B (en) * | 2014-11-19 | 2019-08-13 | 博西华电器（江苏）有限公司 | Control device, smoke exhaust ventilator and its control method for smoke exhaust ventilator |
| CN105674357B (en) * | 2014-11-19 | 2019-12-20 | 博西华电器（江苏）有限公司 | Range hood, control method thereof and control device for range hood |
| CN105674359B (en) * | 2014-11-19 | 2019-06-28 | 博西华电器（江苏）有限公司 | Smoke exhaust ventilator and its control system, control method |
| CN105138028B (en) * | 2015-09-18 | 2018-09-18 | 珠海格力电器股份有限公司 | The method for controlling number of revolution and device of range hood |
| CN110339053B (en) * | 2019-07-03 | 2022-01-14 | 厦门伊亚创新科技有限公司 | Intelligent speed regulation method and device of massage gun and massage gun |
| 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 |
| CN112087167B (en) * | 2020-08-12 | 2022-11-25 | 华帝股份有限公司 | Motor control method of variable-frequency range hood and variable-frequency range hood |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2309746A (en) * | 1996-02-05 | 1997-08-06 | Nuaire Ltd | Fan controller |
| EP1333231A2 (en) * | 2002-01-31 | 2003-08-06 | Diehl AKO Stiftung & Co. KG | Control of an electric fan motor of an exhaust hood |
| CN201555288U (en) * | 2009-11-30 | 2010-08-18 | 美的集团有限公司 | Range hood with automatic speed regulation function |
| CN101900364A (en) * | 2010-07-26 | 2010-12-01 | 江苏光芒厨卫太阳能科技有限公司 | DC frequency conversion range hood |
| CN102374561A (en) * | 2010-08-17 | 2012-03-14 | 博西华电器（江苏）有限公司 | Extractor hood having flue gas automatic test device and control method for extractor hood |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100555429C (en) * | 2006-04-27 | 2009-10-28 | 凌阳科技股份有限公司 | The revolution speed control device of CD burning device and CD burning control method |
| CN101510748B (en) * | 2008-02-15 | 2014-01-15 | 精工爱普生株式会社 | Power generator and motor device |
| CN201448154U (en) * | 2009-02-13 | 2010-05-05 | 长沙中联重工科技发展股份有限公司 | Automatic revolution speed control device of construction machinery engine |
-
2012
- 2012-07-11 CN CN201210249079.2A patent/CN103542439B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2309746A (en) * | 1996-02-05 | 1997-08-06 | Nuaire Ltd | Fan controller |
| EP1333231A2 (en) * | 2002-01-31 | 2003-08-06 | Diehl AKO Stiftung & Co. KG | Control of an electric fan motor of an exhaust hood |
| CN201555288U (en) * | 2009-11-30 | 2010-08-18 | 美的集团有限公司 | Range hood with automatic speed regulation function |
| CN101900364A (en) * | 2010-07-26 | 2010-12-01 | 江苏光芒厨卫太阳能科技有限公司 | DC frequency conversion range hood |
| CN102374561A (en) * | 2010-08-17 | 2012-03-14 | 博西华电器（江苏）有限公司 | Extractor hood having flue gas automatic test device and control method for extractor hood |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103542439A (en) | 2014-01-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103542439B (en) | Smoke exhaust ventilator and its control method | |
| EP3159622B1 (en) | Top cover of air treatment system | |
| CN104564754B (en) | fan detection control method and system | |
| RU2013108278A (en) | CONTROL METHOD FOR ENGINE CONTROL DEVICE | |
| RU2013105271A (en) | METHOD AND DEVICE FOR DETECTING ROTATING FLOW STOP IN A COMPRESSOR OF A GAS TURBINE ENGINE | |
| JP2016530447A (en) | Method for controlling the connection between a first machine and a second machine | |
| KR850004319A (en) | Operation control device of air conditioner | |
| CN104568698A (en) | Device and method for detecting state of filter screen in air conditioner | |
| CN106374787A (en) | Brushless motor controller and method of controlling brushless motor | |
| CN106123473A (en) | The control method of a kind of refrigerator, control device and refrigerator | |
| CN111043707A (en) | Compressor reverse rotation detection method and air conditioner | |
| CN104819498A (en) | Range hood control method capable of detecting air quality | |
| US20120161674A1 (en) | Dc motor speed controller of a range hood | |
| CN103968436B (en) | A kind of smoke exhaust ventilator permanent wind amount and permanent rotating speed method for handover control and its system | |
| JP2018196675A5 (en) | ||
| CN203880790U (en) | Constant air quantity and constant rotation speed switching control device for range hood | |
| CN108662636A (en) | Smoke exhaust ventilator and its control method | |
| KR101242618B1 (en) | Ventilation System Control Method | |
| CN204480083U (en) | A kind of induction type control system of cooking fume exhauster | |
| CN107091531A (en) | Type DC fan gas heater speed-adjusting and control system is taken out in one kind | |
| CN105674359A (en) | Range hood and control system and method thereof | |
| CN104734599A (en) | Air conditioner alternating-current motor control method and device and air conditioner | |
| JP6450216B2 (en) | Gas stove | |
| CN100501242C (en) | Coal fired boiler energy conserving control device | |
| CN108007839B (en) | Damping detector control method, computer readable storage medium and damping detector |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |