CN107101234A - A kind of adaptive Wind-Pressure Resistance system of range hood - Google Patents
A kind of adaptive Wind-Pressure Resistance system of range hood Download PDFInfo
- Publication number
- CN107101234A CN107101234A CN201710269056.0A CN201710269056A CN107101234A CN 107101234 A CN107101234 A CN 107101234A CN 201710269056 A CN201710269056 A CN 201710269056A CN 107101234 A CN107101234 A CN 107101234A
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- China
- Prior art keywords
- blower fan
- range hood
- controller
- electric current
- pressure resistance
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- 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.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C15/00—Details
- F24C15/20—Removing cooking fumes
- F24C15/2021—Arrangement or mounting of control or safety systems
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Ventilation (AREA)
Abstract
The present invention discloses a kind of adaptive Wind-Pressure Resistance system of range hood, including controller, the air-blower control connection of the controller and range hood, it is characterized in that, controller is corresponding with blower fan electric current by the operation range of range hood, each operation range one blower fan electric current of correspondence, when range hood, which is in a certain gear, to work, controller control blower fan electric current is constant on analog value.When there is external wind pressure, fans load lightens, and blower fan electric current diminishes, and controller improves the input voltage of blower fan automatically, to maintain the constant of electric current.So, with the difference of external wind pressure, the power of blower fan is also differed, and then rotation speed of fan is also differed, reach the effect of adaptive superpower Wind-Pressure Resistance, it is effective to ensure smoke exhaust efficiency, it is to avoid situations such as what external wind pressure occurred when changing do not discharge fume, oil smoke pours in down a chimney, cigarette machine is remained to normal smoke evacuation under the environment such as common flue, high blast passage.
Description
Technical field
The present invention relates to range hood control technology field, more particularly to a kind of adaptive Wind-Pressure Resistance system of range hood.
Background technology
Open kitchen becomes increasingly popular, and people require harsher to range hood smoking effect, but smoke exhaust pipe is installed
In the case where the external wind pressures such as common flue, high-storey are high, situations such as non-smoking, oil smoke are poured in down a chimney occurs often, oil smoke is influenceed
Emission effect, reduces Consumer's Experience effect.
Current range hood exhaust apparatus is excessively simple, blower fan fixed rotating speed, constant wind speed air draft.Send out in use
Existing, using original fixed rotating speed control mode, cigarette machine is in common flue and some skyscrapers and hyperbar cyclonic air flow region
Can occur non-smoking even oil smoke and pour in down a chimney phenomenon, it is impossible to meet user's request.
The content of the invention
The oil suction of air draft air force can be automatically adjusted according to outer gas stream pressure it is an object of the invention to provide a kind of
Cigarette machine Wind-Pressure Resistance system.
To achieve the above objectives, the present invention is adopted the following technical scheme that.
A kind of adaptive Wind-Pressure Resistance system of range hood, including controller, the blower fan control of the controller and range hood
System connection, it is characterised in that controller is corresponding with blower fan electric current by the operation range of range hood, each operation range correspondence
One blower fan electric current, when range hood, which is in a certain gear, to work, controller control blower fan electric current is constant on analog value.
As with improvement, the blower fan is to that should have rotating speed maximum, when rotation speed of fan exceedes rotating speed maximum and continues 5s,
Controller control blower fan is closed and sends blocking alarm signal.
As with improvement, the blower fan is to that should have rotating speed maximum to have power of fan determination, and controller passes through detection blower fan
Power judges whether rotation speed of fan exceeds rotating speed maximum.
The beneficial effects of the invention are as follows：
First, using current constant control mode, when there is external wind pressure, controller improves the input voltage of blower fan automatically, to tie up
Hold the constant of electric current.So, with the difference of external wind pressure, the power of blower fan is also differed, and then rotation speed of fan is also differed,
The effect of adaptive superpower Wind-Pressure Resistance is reached, effectively ensures smoke exhaust efficiency, it is to avoid what external wind pressure occurred when changing do not discharge fume,
Situations such as oil smoke pours in down a chimney, makes cigarette machine remain to normal smoke evacuation under the environment such as common flue, high blast passage.
2nd, due to being that electric current is constant, in external wind pressure rise, then exhaust blower wind speed raising；When external wind pressure is low, then arrange
Blower fan wind speed adaptively reduces wind speed, it is ensured that smoke discharging effect is in optimum state.
Brief description of the drawings
Fig. 1 show the adaptive Wind-Pressure Resistance system structure diagram of range hood that the present invention is provided.
Description of reference numerals：
1：Controller, 2：Blower fan.
Embodiment
The essence of the present invention is more fully understood for convenience of those skilled in the art, below in conjunction with the accompanying drawings to the specific of the present invention
Embodiment is described in detail.
As shown in figure 1, a kind of adaptive Wind-Pressure Resistance system of range hood, including controller 1, the controller 1 and oil suction
The control connection of blower fan 2 of cigarette machine, it is characterised in that controller 1 is corresponding with blower fan electric current by the operation range of range hood, each
One blower fan electric current of individual operation range correspondence, when range hood, which is in a certain gear, to work, the control blower fan electric current of controller 1 is permanent
It is scheduled on analog value, to reach the purpose of adaptive Wind-Pressure Resistance.
Concrete operating principle is：When external wind pressure rise, exhaust air rate reduction.Blower motor power meter formula：
N=(Q/3600) * P/ (1000* η) * K 1)
Wherein, Q is air quantity, and P is total head, and N is blower motor power, and η fan total efficiencies, K is capacity motor coefficient.
According to formula 1) and experiment test it can be seen from, when cigarette machine air outlet has downdraught or stopping state, go out wind resistance and become big,
Blower fan conveying air quantity is reduced, and causes the power drop of blower fan, therefore the smoke discharging effect of cigarette machine is deteriorated.
In order to improve raising smoke discharging effect, power of fan must be just improved, rotating speed is increased.
Blower motor electric current I calculating formulas：
I=(power of motor/voltage) * power factors 2)
According to formula 2) understand, when blower fan is by external influence (such as the situation for having downdraught), under the power of blower fan
Drop, blower fan electric current declines, and the electric current of present primary controller procedure control fan is compensated, and allows the electric current of blower fan to keep and just
State is the same during normal air draft.The power supply that Switching Power Supply provides fan is really the input voltage for controlling blower fan, is blocked up after blast only
The constant current controlling of blower fan could be realized by being improved the voltage of blower fan.The voltage of blower fan is increased, and electric current does not have change, and input power becomes
Greatly, so the rotating speed of blower fan increases, and then the ability that blower fan resists external resistance is increased.
Under system normal operation, one rotation speed of fan of each blower fan electric current correspondence.It is same negative when external wind pressure is too high
The corresponding blower fan electric current of lotus is remained unchanged, and input power becomes big, therefore rotation speed of fan is persistently raised.Rotation speed of fan exceedes normal shape
It is automatic to improve motor input voltage during state, to reach superpower Wind-Pressure Resistance purpose.Primary controller procedure is protection blower fan when dispatching from the factory
Maximum (top) speed limit value can be set.When the rotating speed threshold limit value that rotation speed of fan exceedes correspondence program setting continues 5s, then it is determined as wind
Pressure is blocked, and automatic alarm reminds user to check smoke exhaust pipe.
Thus reached adaptive active Wind-Pressure Resistance and external wind pressure it is too high or block judgement, so as to effectively ensure
Smoke exhaust efficiency, it is to avoid situations such as exhaust gas recirculation or down draught.
When complete machine is blocked, blower fan electric current declines, and when stifled wind pressure is bigger, DC fan electric current declines more, controller pair
DC fan electric current is compensated, and controller is adjusted by PWM, is improved speed electric and is maintained i1 and I equal, can be substantially improved stifled
DC motor speed during wind, lifts Wind-Pressure Resistance ability, when rotating speed is higher than the threshold limit value of program setting, the abnormal event of report blast
Barrier.
The essence of the present invention is described in detail above embodiment, but can not be come with this to the present invention's
Protection domain is limited.It should be evident that under the enlightenment of essence of the invention, the art those of ordinary skill can also enter
The many improvement of row and modification, it should be noted that these improve and modification all fall the present invention claims it
It is interior.
Claims (3)
1. a kind of adaptive Wind-Pressure Resistance system of range hood, including controller, the air-blower control of the controller and range hood
Connection, it is characterised in that controller is corresponding with blower fan electric current by the operation range of range hood, each operation range correspondence one
Individual blower fan electric current, when range hood, which is in a certain gear, to work, controller control blower fan electric current is constant on analog value.
2. a kind of adaptive Wind-Pressure Resistance system of range hood according to claim 1, it is characterised in that the blower fan correspondence
There is rotating speed maximum, when rotation speed of fan exceedes rotating speed maximum and continues 5s, controller control blower fan is closed and sends blocking report
Alert signal.
3. a kind of adaptive Wind-Pressure Resistance system of range hood according to claim 2, it is characterised in that the blower fan correspondence
There is rotating speed maximum to have power of fan determination, controller judges whether rotation speed of fan is maximum beyond rotating speed by detection blower fan power
Value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710269056.0A CN107101234A (en) | 2017-04-24 | 2017-04-24 | A kind of adaptive Wind-Pressure Resistance system of range hood |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710269056.0A CN107101234A (en) | 2017-04-24 | 2017-04-24 | A kind of adaptive Wind-Pressure Resistance system of range hood |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107101234A true CN107101234A (en) | 2017-08-29 |
Family
ID=59657098
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710269056.0A Pending CN107101234A (en) | 2017-04-24 | 2017-04-24 | A kind of adaptive Wind-Pressure Resistance system of range hood |
Country Status (1)
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| CN (1) | CN107101234A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107687659A (en) * | 2017-10-19 | 2018-02-13 | 江西拓宇实业有限公司 | A kind of negative pressure blast cap of automatic speed regulation |
| CN109838824A (en) * | 2017-11-28 | 2019-06-04 | 胡江海 | A kind of kitchen discharged lampblack equipment that can prompt air duct ventilation situation |
| CN110220228A (en) * | 2018-03-01 | 2019-09-10 | 青岛海尔智慧厨房电器有限公司 | A kind of smoke machine cruise boosting method and kitchen ventilator |
| CN111895465A (en) * | 2019-05-06 | 2020-11-06 | 宁波方太厨具有限公司 | Automatic speed regulation method for range hood |
| 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 |
| CN112087167A (en) * | 2020-08-12 | 2020-12-15 | 华帝股份有限公司 | Motor control method of variable-frequency range hood and variable-frequency range hood |
| CN112283770A (en) * | 2020-10-12 | 2021-01-29 | 青岛海尔智慧厨房电器有限公司 | Smoke machine control method and device, smoke machine and storage medium |
| WO2021062950A1 (en) * | 2019-09-30 | 2021-04-08 | 佛山市顺德区美的洗涤电器制造有限公司 | Control method for range hood and range hood |
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| JP2002186815A (en) * | 2000-12-19 | 2002-07-02 | Hitachi Hometec Ltd | Soot cleaning and discharge apparatus |
| CN103644583A (en) * | 2013-09-12 | 2014-03-19 | 中山华帝燃具股份有限公司 | Control device capable of monitoring running state of range hood in real time and control method thereof |
| CN103836691A (en) * | 2014-02-28 | 2014-06-04 | 广东威灵电机制造有限公司 | Range hood, and method and system for adjusting constant air volume of range hood |
| CN103968436A (en) * | 2014-04-24 | 2014-08-06 | 广东威灵电机制造有限公司 | Switching control method and system for constant air volume and constant rotate speed of smoke exhaust ventilator |
| CN105757994A (en) * | 2016-01-18 | 2016-07-13 | 广东万家乐燃气具有限公司 | Gas water heater self-adaption wind pressure resisting control method and system |
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Patent Citations (5)
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| JP2002186815A (en) * | 2000-12-19 | 2002-07-02 | Hitachi Hometec Ltd | Soot cleaning and discharge apparatus |
| CN103644583A (en) * | 2013-09-12 | 2014-03-19 | 中山华帝燃具股份有限公司 | Control device capable of monitoring running state of range hood in real time and control method thereof |
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| CN103968436A (en) * | 2014-04-24 | 2014-08-06 | 广东威灵电机制造有限公司 | Switching control method and system for constant air volume and constant rotate speed of smoke exhaust ventilator |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107687659A (en) * | 2017-10-19 | 2018-02-13 | 江西拓宇实业有限公司 | A kind of negative pressure blast cap of automatic speed regulation |
| CN109838824A (en) * | 2017-11-28 | 2019-06-04 | 胡江海 | A kind of kitchen discharged lampblack equipment that can prompt air duct ventilation situation |
| CN110220228A (en) * | 2018-03-01 | 2019-09-10 | 青岛海尔智慧厨房电器有限公司 | A kind of smoke machine cruise boosting method and kitchen ventilator |
| CN111895465A (en) * | 2019-05-06 | 2020-11-06 | 宁波方太厨具有限公司 | Automatic speed regulation method for range hood |
| WO2021062950A1 (en) * | 2019-09-30 | 2021-04-08 | 佛山市顺德区美的洗涤电器制造有限公司 | Control method for range hood and range hood |
| CN112087167A (en) * | 2020-08-12 | 2020-12-15 | 华帝股份有限公司 | Motor control method of variable-frequency range hood and variable-frequency range hood |
| 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 |
| CN112283770A (en) * | 2020-10-12 | 2021-01-29 | 青岛海尔智慧厨房电器有限公司 | Smoke machine control method and device, smoke machine and storage medium |
| CN112283770B (en) * | 2020-10-12 | 2023-01-13 | 青岛海尔智慧厨房电器有限公司 | Smoke ventilator control method and device, smoke ventilator and storage medium |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170829 |
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| RJ01 | Rejection of invention patent application after publication |