CN111520788A - Control method of range hood - Google Patents

Control method of range hood Download PDF

Info

Publication number
CN111520788A
CN111520788A CN202010477638.XA CN202010477638A CN111520788A CN 111520788 A CN111520788 A CN 111520788A CN 202010477638 A CN202010477638 A CN 202010477638A CN 111520788 A CN111520788 A CN 111520788A
Authority
CN
China
Prior art keywords
range hood
fan system
starting
temperature
control method
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.)
Granted
Application number
CN202010477638.XA
Other languages
Chinese (zh)
Other versions
CN111520788B (en
Inventor
王磊
左春洋
徐鑫
申志贤
徐政
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ningbo Fotile Kitchen Ware Co Ltd
Original Assignee
Ningbo Fotile Kitchen Ware Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Ningbo Fotile Kitchen Ware Co Ltd filed Critical Ningbo Fotile Kitchen Ware Co Ltd
Priority to CN202010477638.XA priority Critical patent/CN111520788B/en
Publication of CN111520788A publication Critical patent/CN111520788A/en
Application granted granted Critical
Publication of CN111520788B publication Critical patent/CN111520788B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

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
    • 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
    • F24C15/2078—Removing cooking fumes movable
    • F24C15/2085—Removing cooking fumes movable adjustable in height

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Ventilation (AREA)

Abstract

The invention discloses a control method of a range hood, which is characterized by comprising the following steps: the control method comprises the following steps: 1) starting the range hood, and detecting the real-time temperature T at the lower part of the range hood; 2) judging T > TmaxIf yes, entering step 3), and if not, entering step 5); t ismaxIs a preset upper temperature limit value; 3) blower system (starting, starting timing t for blower system starting timesCounting the current ith time t for starting the fan systemiJudgment of ts＜tmAnd t isi+N‑ti＞tcIf yes, entering step 4), if not, lifting the movable part of the range hood; t is tmTo allow T > TmaxHigh temperature duration of tcIn order to detect the interval duration, N is the number of times of starting the fan system in the detection interval, and i is 1,2,3 … …; 4) then judging that T is less than TsafeIf yes, entering step 5), if no, returning to step 3); t issafeIs a preset safe temperature, and Tsafe＜Tmax(ii) a 5) The fan system is turned off and the step 2) is returned to.

Description

Control method of range hood
Technical Field
The invention relates to an oil fume purification device, in particular to a control method of a range hood.
Background
The range hood has become one of the indispensable kitchen household electrical appliances in modern families. The range hood works by utilizing the fluid dynamics principle, sucks and exhausts oil smoke through a centrifugal fan arranged in the range hood, and filters partial grease particles by using a filter screen. The centrifugal fan comprises a volute, an impeller arranged in the volute and a motor driving the impeller to rotate. When the impeller rotates, negative pressure suction is generated in the center of the fan, oil smoke below the range hood is sucked into the fan, accelerated by the fan and then collected and guided by the volute to be discharged out of a room.
The range hood sold on the market at present mainly comprises a top suction type range hood and a side suction type range hood. According to the regulation of national standards, the height from the bottommost part of the top-suction range hood to the cooking bench is not less than 600mm, and the height from the bottommost part of the side-suction range hood to the cooking bench is not less than 350 mm. In order to suck away the oil smoke generated in the cooking process as much as possible and ensure strong suction, the power of the fan needs to be increased, so that the defects of high production cost, high use energy consumption and the like, high use noise and the like are caused.
In order to avoid these problems, there is also a lifting range hood, which can lower the negative pressure region and get closer to the smoke source, thereby improving the effect of absorbing the smoke. The range hood disclosed in the chinese patent with the application number of 201910791945.2 comprises a range hood main body, a lifting mechanism and a connecting rod mechanism, wherein the range hood main body is provided with a top suction air inlet, a smoke guide plate is arranged at the position of the top suction air inlet, a side suction smoke collection cavity is arranged below the rear of the range hood main body in a sliding manner, the lifting mechanism is arranged on the range hood main body, and the lifting mechanism is connected with the side suction smoke collection cavity and is used for driving the side suction smoke collection cavity to perform lifting motion.
The range hood of over-and-under type can change the air intake height according to the demand, has brought better customer experience. The reduction of height brings the promotion of oil absorption cigarette effect, nevertheless because the lampblack absorber is nearer apart from the cooking utensils, under the extreme condition such as cooking utensils dry combustion, can cause destruction to control element such as switch even other spare part.
For this reason, there is also a range hood which controls the corresponding operation by detecting the temperature. An automatic lifting range hood disclosed in the chinese patent with application number 02222821.7 comprises a range hood and an automatic lifting device, wherein the automatic lifting device comprises a roller seat, a guide rail, a transmission chain wheel, a transmission chain, a lifting motor and a control circuit board, and is further provided with an oil smoke concentration detector, a temperature detector and a human body induction detector, so that the control circuit board controls the operation of the lifting motor according to the actual conditions detected by the three detectors, wherein the temperature detector ensures that a gas stove is likely to damage the range hood when the gas stove is in idle burning, and once the temperature detector detects that the temperature is higher than 100 ℃, the range hood automatically rises to the highest point, thereby protecting household property.
However, the range hood directly rises when the temperature is too high, and the range hood has large rising action amplitude, so that the range hood can greatly affect the cooking operation of a user, is not friendly to the user and has poor cooking experience.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a control method of a range hood aiming at the defects of the prior art, which can ensure the safe use of the range hood, prolong the service life of the range hood and simultaneously reduce the influence on a user.
The technical scheme adopted by the invention for solving the technical problems is as follows: a control method of a range hood comprises a fan system and a movable component capable of lifting, wherein an air inlet is formed in the movable component, and the control method is characterized in that: the control method comprises the following steps:
1) starting the range hood, and detecting the real-time temperature T at the lower part of the range hood;
2) judging T > TmaxIf it is true, if so, go to step 3), if soIf not, entering step 5); t ismaxIs a preset upper temperature limit value;
3) blower system (starting, starting timing t for blower system starting timesCounting the current ith time t for starting the fan systemiJudgment of ts＜tmAnd t isi+N-ti＞tcIf yes, entering step 4), if not, lifting the movable part of the range hood; t is tmTo allow T > TmaxHigh temperature duration of tcIn order to detect the interval duration, N is the number of times of starting the fan system in the detection interval, and i is 1,2,3 … …;
4) then judging that T is less than TsafeIf yes, entering step 5), if no, returning to step 3); t issafeIs a preset safe temperature, and Tsafe＜Tmax；
5) The fan system is turned off and the step 2) is returned to.
Preferably, T is detected by a temperature sensor, which is arranged at the lower part of the extractor hood.
In order to facilitate automatic control, the range hood further comprises a lifting driving module for driving the movable component, and a processor capable of controlling the fan system and the lifting driving module according to the signal of the temperature sensor, the time signal and the N.
To facilitate the comparison and judgment between the variables, the respective temperature variables, time variables and N are set in advance in the processor before step 1).
Compared with the prior art, the invention has the advantages that: through the comparison of temperature signal and time signal and default, utilize the lift altitude ground of fan system and movable part to adjust and solve the problem of high temperature to avoid overheated damage to range hood, under the circumstances of guaranteeing safety, reduce the influence to the user as far as possible, obtain rationally balancing in the middle of the problem of solving and causing the puzzlement to the user.
Drawings
FIG. 1 is a schematic block diagram of the electrical connection of the components of the range hood of the present invention;
fig. 2 is a flowchart of a control method of the range hood of the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar functions.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present invention and to simplify the description, but are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and that the directional terms are used for purposes of illustration and are not to be construed as limiting, for example, because the disclosed embodiments of the present invention may be oriented in different directions, "lower" is not necessarily limited to a direction opposite to or coincident with the direction of gravity. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.
Referring to fig. 1, an electrical connection schematic block diagram of a range hood is a lifting range hood, which is a lifting structure in any form in the prior art, and for example, a movable part capable of lifting may be a smoke collecting hood or a side suction air inlet part of a commonly used L-shaped range hood, as long as an air inlet provided on the movable part can be lifted up and down.
The components include a temperature sensor 1, a lift driving module 2, and a fan system 3, all of which are electrically connected to a processor 4, and the processor 4 controls the lift driving module 2 and the fan system 3 by a signal according to the temperature sensor 1 and a time signal described below. The temperature sensor 1 can be arranged at the lower part of the whole range hood and is used for detecting the real-time temperature of the installation position. The lifting driving module 2 is generally a linear driving module for driving the movable member to lift.
Referring to fig. 2, in the control method of the range hood of the present invention, the movable component is in a descending state, and the fan system 3 does not operate. When the real-time temperature T exceeds the set value TmaxWhen the temperature is lower than the set value T, the fan system 3 is started and continuously detects the temperature, and when the real-time temperature T is lower than the set value TsafeAt this time, the fan system 3 is turned off. If at the set time length tmWithin the range, the real-time temperature T is not lower than TsafeThen the movable part of the range hood rises. If in the set time interval tcIn the range hood, if the fan system 3 is opened and closed due to the overhigh temperature for N times, the movable part of the range hood rises.
Specifically, the method comprises the following steps:
1) starting the range hood, operating the temperature sensor 1 and detecting the real-time temperature T;
2) the processor 4 judges that the real-time temperature T detected by the temperature sensor 1 is more than TmaxIf yes, entering step 3), and if not, entering step 5);
3) starting the fan system 3, and timing t for the starting time of the fan system 3sCounting the current ith time t for starting the fan system 3iJudgment of ts＜tmAnd t isi+N-ti＞tcIf yes, entering step 4), if not, lifting the movable part of the range hood;
4) then judging that T is less than TsafeIf yes, entering step 5), if no, returning to step 3);
5) the fan system 3 is turned off and returns to step 2).
The variables mentioned above may be set in the processor 4 before step 1): the current real-time temperature T detected by the probe of the temperature sensor 1 has an upper limit value TmaxSafe temperature of TsafeAllowing T > TmaxIs tmThe detection interval duration is tcDetecting intra-interval grantThe starting times of the fan system are N, and the ith starting time is ti(i ═ 1,2,3 … …) in which T and T arei(i-1, 2,3 … …) is the meaning of the set variable, Tmax、Tsafe、tm、tcN is the meaning and value of the set variables, and Tsafe＜Tmax。
Experimental tests show that when the lower end face of the range hood is about 450mm away from a kitchen range, a fan system of the range hood is closed, and the surface temperature of the range hood can reach 200 ℃ when double-range dry burning is carried out on the kitchen range without cooking equipment. When the fan system is started, the temperature can be reduced to about 60 ℃. When the distance between the lower end surface of the range hood and the kitchen range is higher than 700mm, the temperature can be greatly reduced.

Claims (4)

1. A control method of a range hood comprises a fan system (3) and a movable component capable of lifting, wherein an air inlet is formed in the movable component, and the control method is characterized in that: the control method comprises the following steps:
1) starting the range hood, and detecting the real-time temperature T at the lower part of the range hood;
2) judging T > TmaxIf yes, entering step 3), and if not, entering step 5); t ismaxIs a preset upper temperature limit value;
3) starting the fan system (3), and timing t for the starting time of the fan system (3)sCounting the current ith time t for starting the fan system (3)iJudgment of ts＜tmAnd t isi+N-ti＞tcIf yes, entering step 4), if not, lifting the movable part of the range hood; t is tmTo allow T > TmaxHigh temperature duration of tcIn order to detect the interval duration, N is the number of times of opening the fan system (3) in the detection interval, and i is 1,2 and 3 … …;
4) then judging that T is less than TsafeIf yes, entering step 5), if no, returning to step 3); t issafeIs a preset safe temperature, and Tsafe＜Tmax；
5) And (5) turning off the fan system (3) and returning to the step 2).
2. The control method of the range hood according to claim 1, characterized in that: and T is detected through a temperature sensor (1), and the temperature sensor (1) is arranged at the lower part of the range hood.
3. The control method of the range hood according to claim 2, characterized in that: the range hood further comprises a lifting driving module (2) for driving the movable component, and a processor (4) capable of controlling the fan system (3) and the lifting driving module (2) according to the signal, the time signal and the N of the temperature sensor (1).
4. The control method of the range hood according to claim 3, characterized in that: the temperature variables, the time variable and N are set in advance in the processor (4) before step 1).
CN202010477638.XA 2020-05-29 2020-05-29 Control method of range hood Active CN111520788B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010477638.XA CN111520788B (en) 2020-05-29 2020-05-29 Control method of range hood

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010477638.XA CN111520788B (en) 2020-05-29 2020-05-29 Control method of range hood

Publications (2)

Publication Number Publication Date
CN111520788A true CN111520788A (en) 2020-08-11
CN111520788B CN111520788B (en) 2022-08-02

Family

ID=71912841

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010477638.XA Active CN111520788B (en) 2020-05-29 2020-05-29 Control method of range hood

Country Status (1)

Country Link
CN (1) CN111520788B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113566248A (en) * 2021-04-06 2021-10-29 佛山市设际源电子有限公司 Smoke ventilator control circuit, control panel and control system thereof

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000217707A (en) * 1999-02-01 2000-08-08 Maruzen Co Ltd Gas range for cooking soup or the like
CN2775514Y (en) * 2005-03-16 2006-04-26 张宝财 Lifting type fume exhaust fan
CN203940496U (en) * 2014-07-11 2014-11-12 浙江德乐电器有限公司 A kind of range hood with infrared sensing thermometric
CN107965824A (en) * 2017-05-12 2018-04-27 宁波方太厨具有限公司 A kind of intelligent range hood and its operation control method
CN108278646A (en) * 2018-02-11 2018-07-13 傅学文 A kind of deformable smoke exhaust ventilator
CN208059006U (en) * 2018-03-30 2018-11-06 北京钛方科技有限责任公司 Smoke exhaust ventilator control device
CN109945260A (en) * 2019-03-14 2019-06-28 佛山市顺德区美的洗涤电器制造有限公司 For the control method of kitchen ventilator, controller, control device and kitchen ventilator
CN110345525A (en) * 2018-04-04 2019-10-18 宁波方太厨具有限公司 A kind of range hood
CN110345526A (en) * 2018-04-04 2019-10-18 宁波方太厨具有限公司 A kind of range hood
CN209782771U (en) * 2019-04-08 2019-12-13 朱斌 Safe energy-conserving lampblack absorber
CN209978113U (en) * 2018-12-12 2020-01-21 华帝股份有限公司 Oil net telescopic mechanism and range hood
CN210197375U (en) * 2018-12-12 2020-03-27 华帝股份有限公司 Ceiling type range hood

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000217707A (en) * 1999-02-01 2000-08-08 Maruzen Co Ltd Gas range for cooking soup or the like
CN2775514Y (en) * 2005-03-16 2006-04-26 张宝财 Lifting type fume exhaust fan
CN203940496U (en) * 2014-07-11 2014-11-12 浙江德乐电器有限公司 A kind of range hood with infrared sensing thermometric
CN107965824A (en) * 2017-05-12 2018-04-27 宁波方太厨具有限公司 A kind of intelligent range hood and its operation control method
CN108278646A (en) * 2018-02-11 2018-07-13 傅学文 A kind of deformable smoke exhaust ventilator
CN208059006U (en) * 2018-03-30 2018-11-06 北京钛方科技有限责任公司 Smoke exhaust ventilator control device
CN110345525A (en) * 2018-04-04 2019-10-18 宁波方太厨具有限公司 A kind of range hood
CN110345526A (en) * 2018-04-04 2019-10-18 宁波方太厨具有限公司 A kind of range hood
CN209978113U (en) * 2018-12-12 2020-01-21 华帝股份有限公司 Oil net telescopic mechanism and range hood
CN210197375U (en) * 2018-12-12 2020-03-27 华帝股份有限公司 Ceiling type range hood
CN109945260A (en) * 2019-03-14 2019-06-28 佛山市顺德区美的洗涤电器制造有限公司 For the control method of kitchen ventilator, controller, control device and kitchen ventilator
CN209782771U (en) * 2019-04-08 2019-12-13 朱斌 Safe energy-conserving lampblack absorber

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113566248A (en) * 2021-04-06 2021-10-29 佛山市设际源电子有限公司 Smoke ventilator control circuit, control panel and control system thereof

Also Published As

Publication number Publication date
CN111520788B (en) 2022-08-02

Similar Documents

Publication Publication Date Title
WO2021184864A1 (en) Range hood and control method therefor
CN112050270B (en) Control method of range hood
CN112254188B (en) Control method of cooking device
CN111306593B (en) Range hood and control method thereof
CN111336557B (en) Range hood and control method thereof
CN110906391B (en) Lighting device, range hood applying same and cooking device
CN105864861A (en) Intelligent range hood
CN111811009A (en) Range hood and control method thereof
CN111520788B (en) Control method of range hood
CN112856509B (en) Range hood and control method thereof
CN111578333B (en) Control method of cooking device
CN109425003B (en) Smoke machine
CN214249722U (en) Cooking device
CN112178722B (en) Control method of range hood
CN216079969U (en) Fume exhaust fan
CN114763915B (en) Range hood and control method thereof
CN113639293A (en) Range hood and control method thereof
CN112797462A (en) Range hood control method
CN113237107A (en) Control method of cooking device
CN113108347B (en) Side-wind prevention control method for range hood
CN216557283U (en) Fume exhaust fan
CN111853893B (en) Range hood and control method thereof
CN112747345A (en) Range hood, air inlet control method for range hood and storage medium
CN215570687U (en) Fume exhaust fan
CN105737225A (en) Range hood with CO monitoring and alarming function

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
GR01 Patent grant
GR01 Patent grant