CN204227496U - Near-suction type oil smoke suction machine - Google Patents

Near-suction type oil smoke suction machine Download PDF

Info

Publication number
CN204227496U
CN204227496U CN201420590102.9U CN201420590102U CN204227496U CN 204227496 U CN204227496 U CN 204227496U CN 201420590102 U CN201420590102 U CN 201420590102U CN 204227496 U CN204227496 U CN 204227496U
Authority
CN
China
Prior art keywords
filtering screen
spoiler
oil smoke
leading screw
temperature sensor
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.)
Expired - Fee Related
Application number
CN201420590102.9U
Other languages
Chinese (zh)
Inventor
何立博
茅忠群
诸永定
王军元
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 CN201420590102.9U priority Critical patent/CN204227496U/en
Application granted granted Critical
Publication of CN204227496U publication Critical patent/CN204227496U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

A kind of near-suction type oil smoke suction machine, comprises body, exhaust fume collecting hood and blower fan, exhaust fume collecting hood is provided with panel and filtering screen, it is characterized in that: air intake regional temperature on the left of the first temperature sensor perception filtering screen; Air intake regional temperature on the right side of second temperature sensor perception filtering screen; First spoiler and the second spoiler all install filtering screen dorsal part; Driving mechanism is arranged on filtering screen dorsal part and drives according to the temperature of perception the first spoiler and/or the second spoiler to do laterally to move left and right, and the temperature in the air-admitting surface of filtering screen both sides and homonymy air intake region is matched.The utility model has the advantage of: utilize temperature sensor perception filtering screen left and right sides thermo parameters method to judge both sides heated condition, and prejudge the little cigarette direction of the opium that may occur with this, driving mechanism drives the first spoiler and the second spoiler laterally to move left and right to regulate right and left air inlet area, and then the negative pressuren zone distribution of adjustment left and right, to promote smoke absorption effect.

Description

Near-suction type oil smoke suction machine
Technical field
The utility model relates to a kind of range hood, especially relates to a kind of near-suction type oil smoke suction machine.
Background technology
At present, European type cooker hood on market is divided into top-sucking kitchen ventilator and near-suction type oil smoke suction machine, in order to fully siphon away oil smoke, near-suction type oil smoke suction machine is usually drop-down exhaust fume collecting hood, region is produced, meanwhile, in order to make smoke absorption effect better closer to oil smoke, appearance smoke chamber is typically provided with, finally by suction wind mechanism outside oil smoke discharge chamber at exhaust fume collecting hood rear portion.
The panel of near-suction type oil smoke suction machine all includes filtering screen, and at present, oil smoke directly enters appearance smoke chamber without flow-disturbing behind the oil strain hole of filtering screen, and the air inlet size of filtering screen both sides also cannot regulate.In addition, the entire length of near-suction type oil smoke suction machine is generally all greater than the length of kitchen range, and during range hood work, after leaving air inlet one segment distance, negative pressure reduces immediately.Consider that general user family all uses Double gas cooker kitchen range, when two pans use simultaneously, such as side cooking and opposite side is cooked, the oil smoke that cooking side produces is more, side of cooking produces oil smoke hardly, and existing near-suction type oil smoke suction machine is owing to cannot adjust left and right negative pressure distribution by regulating the air inlet size of filtering screen both sides, thus there will be cooking side draught not oil-feed cigarette and the phenomenon of side negative pressure waste of cooking.Same principle, for when only using a pan, also can produce the phenomenon of the side negative pressure waste not using pan.
In addition, the multiple range hood being controlled motor speed by microprocessor has been disclosed in prior art, if application number is " a kind of range hood with air quantity regulatory function " disclosed in the Chinese invention patent application of 201310274056.1 (application publication number is CN 103353137 A), the feature of this range hood is that controller comprises central processing unit, sensor group is arranged on air inlet, the oil smoke of air inlet and vapour concentration when sensor group detects range hood work also feed back to central processing unit, after COMPREHENSIVE CALCULATING, obtain airflow value by central processing unit and control the rotating speed of direct current generator, air quantity is compensated by regulating motor speed, thus the permanent wind dose-effect obtaining being similar to fruit, guarantee smoke absorption effect is unaffected.And for example the patent No. is " a kind of range hood of air quantity regulatory function and the control system thereof " disclosed in the Chinese utility model patent of ZL 201320389581.3 (Authorization Notice No. is CN 203375507 U), this control system discloses a kind of control method, it comprises power module, motor drive module, system control module, system control module comprises main control chip, from control chip, sensor group, main control chip is connected with sensor group, motor drive module is by SPM, motor drive ic, sampling and protection circuit composition, sensor group detects range hood running status and is input to main control chip, main control chip controls motor drive module according to range hood running status, thus drive direct current generator work.And for example application number is " the having the range hood of automatic speed regulating function " disclosed in the Chinese utility model patent of 200920263606.9 (Authorization Notice No. is CN 201555288 U), this range hood comprises automatic speed regulation control circuit, display and key circuit, automatic speed regulation control circuit comprises power circuit, micro controller signal processing circuit, temperature sensing circuit, motor speed testing circuit and motor speed regulating circuit, the temperature sensor of temperature sensing circuit is arranged at above oil suction mouth, the temperature voltage signal collected is inputed to micro controller signal processing circuit, after A/D conversion and process being carried out to temperature voltage signal by micro controller signal processing circuit, obtain real time temperature and speed governing fiducial temperature, micro controller signal processing circuit is to real time temperature, speed governing fiducial temperature and motor actual speed carry out comprehensive calculation process, to control machine operation.
Utility model content
A technical problem to be solved in the utility model is for above-mentioned prior art present situation, provides a kind of near-suction type oil smoke suction machine distributed to adjust left and right negative pressuren zone by perception kitchen range left and right sides thermo parameters method.
Another technical problem to be solved in the utility model is for above-mentioned prior art present situation, provide a kind of by perception kitchen range left and right sides thermo parameters method to adjust the distribution of left and right negative pressuren zone and can the near-suction type oil smoke suction machine of right position after the large oil smoke ascension of auxiliary judgment in real time.
The utility model solves the problems of the technologies described above adopted technical scheme: this kind of near-suction type oil smoke suction machine, comprises body, exhaust fume collecting hood and blower fan, exhaust fume collecting hood is provided with panel and filtering screen, has characterized by further comprising:
First temperature sensor, is arranged on the center-left side position of described panel, and the temperature in air intake region on the left of perception filtering screen;
Second temperature sensor, is arranged on the center-right side position of described panel, and the temperature in air intake region on the right side of perception filtering screen;
First spoiler, is arranged on the dorsal part of described filtering screen;
Second spoiler, is arranged on the dorsal part of described filtering screen; And
Driving mechanism, be arranged on the dorsal part of described filtering screen and respective drive first spoiler and/or the second spoiler are done laterally to move left and right according to the temperature of the first temperature sensor and the second temperature sensor perception, and the temperature in the air-admitting surface of filtering screen both sides and homonymy air intake region is matched.
Preferably, the camera of the picture signal that can gather reflection filtering screen left and right sides oil smoke power is installed in the centre position of described panel, described driving mechanism according to the picture signal of described camera collection respective drive first spoiler and/or the second spoiler do laterally to move left and right, and it is more weak or without the side of oil smoke to make the first spoiler and/or the second spoiler shift to oil smoke.
Further preferably, described panel comprises top panel and lower panel, and described filtering screen is between top panel and lower panel, and the first described temperature sensor, the second temperature sensor and camera are installed in the top in described filtering screen front.
Temperature sensor can have multiple choices, and preferably, the first described temperature sensor and the second temperature sensor are infrared sensor.
In order to obtain good flow-disturbing effect, the width of described first spoiler and the second spoiler is all less than 1/2nd width of described filtering screen, and described first spoiler and the height of the second spoiler and the height of filtering screen match.
Driving mechanism can adopt various structures, preferably, described driving mechanism comprises the first motor, the first leading screw, the second motor, the second leading screw and guide post, described first motor is arranged on the left side at filtering screen back, described first leading screw is horizontally disposed with and is arranged on the output shaft of the first motor, described guide post and the first leading screw be arranged in parallel and lay respectively at the both sides up and down of described filtering screen, and the described first spoiler back side is provided with the first fairlead matched with the first leading screw and the second fairlead matched with guide post; Described second motor is arranged on the right side at filtering screen back, described second leading screw is horizontally disposed with and is arranged on the output shaft of the second motor, and this second leading screw is disposed adjacent with the first leading screw, the back side of described second spoiler is provided with the 3rd fairlead matched with described second leading screw and the 4th fairlead matched with guide post.
In order to support leading screw, be also provided with the leading screw supporting seat for supporting the first leading screw and the second leading screw at the dorsal part of filtering screen.
Preferred as above-mentioned either a program, described panel is provided with the smoke barrier that can overturn, described smoke barrier is positioned at the top of described filtering screen, under open state, smoke barrier upwards overturns and filtering screen is exposed, in the power-offstate, smoke barrier overturns downwards and covers filtering screen.
Compared with prior art, the utility model has the advantage of: this near-suction type oil smoke suction machine utilizes the first temperature sensor and the second temperature sensor perception filtering screen left and right sides thermo parameters method to judge both sides heated condition, and prejudge the little cigarette direction of the opium that may occur according to temperature regime, driving mechanism drives the first spoiler and the second spoiler laterally to move left and right to regulate right and left air inlet area, and then the negative pressuren zone distribution of adjustment left and right, to promote smoke absorption effect.In addition, the camera set up can the strong and weak situation of oil smoke of auxiliary judgment filtering screen both sides, and by driving the first spoiler and the second spoiler laterally to move left and right the smoke absorption effect improving range hood further.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model embodiment;
Fig. 2 is the structural representation after the utility model embodiment exhaust fume collecting hood side plate;
Fig. 3 be the utility model embodiment use eyes stove and both sides smoke which roughly the same time structural representation;
Fig. 4 be the utility model embodiment use eyes stove and both sides smoke which inconsistent time structural representation;
Structural representation when Fig. 5 is stove on the left of the utility model embodiment uses;
Structural representation when Fig. 6 is the utility model embodiment use single-hole range;
The structural representation of driving mechanism under state shown in Fig. 4 that Fig. 7 is the utility model embodiment;
The structural representation of driving mechanism under state shown in Fig. 6 that Fig. 8 is the utility model embodiment;
Fig. 9 is the control flow chart of the controlling organization of the utility model embodiment.
Detailed description of the invention
Below in conjunction with accompanying drawing embodiment, the utility model is described in further detail.
As depicted in figs. 1 and 2, the near-suction type oil smoke suction machine in the present embodiment comprises body 1, exhaust fume collecting hood 2, blower fan 3, panel, filtering screen 41 and smoke barrier 9.Wherein, exhaust fume collecting hood 2 is arranged on below body 1, and blower fan 3 is arranged in body 1 and part is positioned at exhaust fume collecting hood 2 dorsal part, and panel comprises top panel 42 and lower panel 43 and is arranged on the front of exhaust fume collecting hood 2, and filtering screen 41 is between top panel 42 and lower panel 43.Smoke barrier 9 is positioned at the top of filtering screen 41 and is arranged on top panel 42 turningly, and under open state, smoke barrier 9 is upwards dug and exposes filtering screen 41, and under off-mode, smoke barrier 9 overturns downwards and covers filtering screen 41.
With arrow C direction in Fig. 1 for dextrad, first temperature sensor 51 is arranged on the center-left side position of panel, and the temperature in air intake region on the left of perception filtering screen 41, second temperature sensor 52 is arranged on the center-right side position of panel, and the temperature in air intake region on the right side of perception filtering screen 41, particularly, first temperature sensor 51 and the second temperature sensor 52 are installed in the top in filtering screen 41 front, further, the first temperature sensor 51 and the second temperature sensor 52 all adopt infrared sensor.In addition, filtering screen 41 front top and between the first temperature sensor 51 and the second temperature sensor 52, camera 7 is also installed, camera 7 is used for the image of the right position after gathering oil smoke ascension and vision signal, the picture signal that such as camera 7 gathers can reflect the strong and weak situation of filtering screen 41 left and right sides oil smoke, judge which side oil smoke is obvious with this, and which side oil smoke is less or without oil smoke.
First spoiler 61 and the second spoiler 62 all install the dorsal part of filtering screen 41, the width of the first spoiler 61 and the second spoiler 62 is all less than 1/2nd width of filtering screen 41, and the first spoiler 61 and the height side of the second spoiler 62 match with the height of filtering screen 41.
As shown in Figure 7 and Figure 8, be provided with driving mechanism at filtering screen 41 dorsal part, this driving mechanism is used for driving first spoiler 61 and the second spoiler 62 and does laterally to move left and right.In the present embodiment, driving mechanism comprises the first motor 81, first leading screw 82, second motor 83, second leading screw 84, guide post 85 and leading screw supporting seat 86.Particularly, first motor 81 is reducing motor and is arranged on the left side at filtering screen 41 back, first leading screw 82 is horizontally disposed with and is arranged on the output shaft of the first motor 81, guide post 85 and the first leading screw 82 be arranged in parallel and lay respectively at the both sides up and down of filtering screen 41, and first spoiler 61 back side is provided with the first fairlead 611 matched with the first leading screw 82 and the second fairlead 612 matched with guide post 85; Second motor 83 is reducing motor and is arranged on the right side at filtering screen 41 back, second leading screw 84 is horizontally disposed with and is arranged on the output shaft of the second motor 83, and this second leading screw 84 is disposed adjacent with the first leading screw 82, the back side of the second spoiler 62 is provided with the 3rd fairlead 621 matched with the second leading screw 84 and the 4th fairlead 622 matched with guide post 85.First leading screw 82 and the second leading screw 84 pass the intermediate supports of leading screw supporting seat 86, first leading screw 82 and the second leading screw 84 on leading screw supporting seat 86 simultaneously, and the one end away from motor is arranged on bearing and forms revolute pair.
The operation principle of this near-suction type oil smoke suction machine is: controlling organization (not shown) is connected with the first temperature sensor 51 output, the second temperature sensor 52 output, the output of camera 7 and the input of driving mechanism, under controlling organization controls, according to the temperature contrast of the first temperature sensor 51 and the second temperature sensor 52 perception, driving mechanism respective drive first spoiler 61 and/or the second spoiler 62 are done laterally to move left and right, and match with the intake air temperature of the air-admitting surface and homonymy that make filtering screen 41 left and right sides.In addition, under controlling organization controls, the image that driving mechanism also gathers according to camera 7 and/or vision signal and respective drive first spoiler 61 and/or the second spoiler 62 are done laterally to move left and right.In addition, from the description of background technology, by microcomputer reads sensor signal and and then to control machine operation be prior art, the control section of controlling organization in the present embodiment, namely control chip controls driving mechanism according to the temperature value read from temperature sensor and carries out action and can adopt the prior art.
Fluid continuity equation gives the relation between the air-admitting surface of the left and right sides, cross section average speed and volume flow, specific as follows:
Wherein v is cross section average speed, and A is air-admitting surface, and Q is volume flow.
Be illustrated in figure 9 the FB(flow block) of controlling organization in the present embodiment, first hypothesis has following three conditions:
1) the first temperature sensor and the second temperature sensor and left and right infrared sensor are sampled the temperature T obtained leftand T rightrepresent.
2) the first spoiler and the second spoiler called after A plate and B plate respectively, largest motion distance is the half of filtering screen air inlet length L, i.e. L/2.Initial position A plate is in the leftmost side, and B plate is in the rightmost side.
3) temperature difference judgment threshold T is set threshold(get reference range 5-15K, get 10K temporarily at this).
Electric power starting (user's start), if time microprocessor detects that temperature difference absolute value is less than or equal to this threshold value, thinks that air flows the interference caused, adopts picture to judge cigarette source with reference to camera.Now, if cigarette source is in centre, A plate moves to the most left, and B plate moves to the rightest; If cigarette source is in both sides, A plate and B plate all move to centre.
If time microprocessor detects that temperature difference absolute value is greater than this threshold value, think that left and right sides culinary art situation is different, and be not only that air flows the thermal change caused.Suppose T left-T right>T threshold, simultaneously analyze whether Dou Youyan source, both sides according to camera collection.If only there is cigarette side, then judge that smokeless side is in without cooking status, then A plate and B plate all move to smokeless side; If there is cigarette both sides, A plate is toward middle mobile L/4, B plate toward middle mobile t right-T left>T thresholdsituation as T left-T right>T threshold, no longer launch to describe at this.
From above-mentioned motion process, because range hood integral fan performance is limited, only use side kitchen range cooking or both sides firepower comparison in difference large in, first temperature sensor 51 and the second temperature sensor 52 can measure left and right temperature contrast, when side temperature is apparently higher than other side temperature, the air inlet of less for temperature side can be turned down and even close, according to fluid continuity equation, the fluid velocity of cooking side and negative pressure increase, and the smoke absorption effect of this side significantly strengthens.Camera 7 is used for the right position after the large oil smoke ascension of real-time auxiliary judgment, if find that side oil smoke is obvious, and then corresponding spoiler can be driven to be turned down by other side air inlet toward motion in the other direction even close by the corresponding leading screw of electric machine rotation, thus the air-admitting surface of the obvious side of oil smoke is increased, siphon away oil smoke rapidly.
As Fig. 3 uses eyes stove and the roughly the same situation of both sides smoke which, now, the first spoiler 61 and the second spoiler 62 entirety are positioned at the centre position of filtering screen 41.
As Fig. 4 uses eyes stove and the inconsistent situation of both sides oil smoke, such as side cook and opposite side cooking time, because disturbing factor is many, the heat that both sides produce also not too can be consistent with oil smoke amount, first temperature sensor 51 and the second temperature sensor 52 can judge rapidly left and right sides Temperature Distribution, and by visual identity program, camera 7 can judge that there is large oil smoke which side, first motor 81 and the second motor 83 drive corresponding leading screw to make the right position dynamic conditioning of the first spoiler 61 and the second spoiler 62, with self adaptation oil smoke fluctuation situation, thus can ensure when total blast volume is certain, smoke absorption effect is better.
If Fig. 5 is the situation using left side stove, now, first temperature sensor 51 and the second temperature sensor 52 can judge rapidly that left side temperature is higher than right side temperature, and camera 7 can judge smokeless source, right side, first motor 81 and the second motor 83 drive corresponding leading screw and make the first spoiler 61 and the second spoiler 62 move on the right side of filtering screen 41, thus can ensure when total blast volume is certain, left side flow velocity is maximum and negative pressure is also maximum.
If Fig. 6 is the situation using simple eye kitchen range, because simple eye kitchen range are all positioned at centre position, thus the first motor 81 and the second motor 83 drive corresponding leading screw and make the first spoiler 61 and the second spoiler 62 move to filtering screen 41 the right and left, thus can ensure when total blast volume is certain, middle flow velocity is maximum and negative pressure is also maximum.

Claims (8)

1. a near-suction type oil smoke suction machine, comprises body (1), exhaust fume collecting hood (2) and blower fan (3), exhaust fume collecting hood (2) is provided with panel and filtering screen (41), has characterized by further comprising:
First temperature sensor (51), is arranged on the center-left side position of described panel, and the temperature in air intake region, perception filtering screen (41) left side;
Second temperature sensor (52), is arranged on the center-right side position of described panel, and the temperature in air intake region, perception filtering screen (41) right side;
First spoiler (61), is arranged on the dorsal part of described filtering screen (41);
Second spoiler (62), is arranged on the dorsal part of described filtering screen (41); And
Driving mechanism, be arranged on the dorsal part of described filtering screen (41) and respective drive first spoiler (61) and/or the second spoiler (62) are done laterally to move left and right according to the temperature of the first temperature sensor (51) and the second temperature sensor (52) perception, and the temperature in the air-admitting surface of filtering screen (41) both sides and homonymy air intake region is matched.
2. near-suction type oil smoke suction machine according to claim 1, it is characterized in that: the camera (7) being provided with the picture signal that can gather reflection filtering screen (41) left and right sides oil smoke power in the centre position of described panel (1), the picture signal that described driving mechanism gathers according to described camera (7) and respective drive first spoiler (61) and/or the second spoiler (62) are done laterally to move left and right, and it is more weak or without the side of oil smoke to make the first spoiler (61) and/or the second spoiler (62) shift to oil smoke.
3. near-suction type oil smoke suction machine according to claim 2, it is characterized in that: described panel comprises top panel (42) and lower panel (43), described filtering screen (41) is positioned between top panel (42) and lower panel (43), and described the first temperature sensor (51), the second temperature sensor (52) and camera (7) are installed in the top in described filtering screen (41) front.
4. near-suction type oil smoke suction machine according to claim 1, is characterized in that: described the first temperature sensor (51) and the second temperature sensor (52) are infrared sensor.
5. near-suction type oil smoke suction machine according to claim 1, it is characterized in that: the width of described first spoiler (61) and the second spoiler (62) is all less than 1/2nd width of described filtering screen (41), the height of described first spoiler (61) and the second spoiler (62) and the height of filtering screen (41) match.
6. near-suction type oil smoke suction machine according to claim 1, it is characterized in that: described driving mechanism comprises the first motor (81), first leading screw (82), second motor (83), second leading screw (84) and guide post (85), described first motor (81) is arranged on the left side at filtering screen (41) back, described first leading screw (82) is horizontally disposed with and is arranged on the output shaft of the first motor (81), described guide post (85) and the first leading screw (82) be arranged in parallel and lay respectively at the both sides up and down of described filtering screen (41), described first spoiler (61) back side is provided with the first fairlead (611) matched with the first leading screw (82) and the second fairlead (612) matched with guide post (85), described second motor (83) is arranged on the right side at filtering screen (41) back, described second leading screw (84) is horizontally disposed with and is arranged on the output shaft of the second motor (83), and this second leading screw (84) is disposed adjacent with the first leading screw (82), the back side of described second spoiler (62) is provided with the 3rd fairlead (621) matched with described second leading screw (84) and the 4th fairlead (622) matched with guide post (85).
7. near-suction type oil smoke suction machine according to claim 6, is characterized in that: be also provided with the leading screw supporting seat (86) for supporting the first leading screw (82) and the second leading screw (84) at the dorsal part of filtering screen (41).
8. the near-suction type oil smoke suction machine according to claim arbitrary in claim 1 to 7, it is characterized in that: the smoke barrier (9) that can overturn is installed on described panel (2), described smoke barrier (9) is positioned at the top of described filtering screen (41), under open state, smoke barrier (9) upwards overturns and filtering screen (41) is exposed, in the power-offstate, smoke barrier (9) overturns downwards and covers filtering screen (41).
CN201420590102.9U 2014-10-13 2014-10-13 Near-suction type oil smoke suction machine Expired - Fee Related CN204227496U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420590102.9U CN204227496U (en) 2014-10-13 2014-10-13 Near-suction type oil smoke suction machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420590102.9U CN204227496U (en) 2014-10-13 2014-10-13 Near-suction type oil smoke suction machine

Publications (1)

Publication Number Publication Date
CN204227496U true CN204227496U (en) 2015-03-25

Family

ID=52925584

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420590102.9U Expired - Fee Related CN204227496U (en) 2014-10-13 2014-10-13 Near-suction type oil smoke suction machine

Country Status (1)

Country Link
CN (1) CN204227496U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104329708A (en) * 2014-10-13 2015-02-04 宁波方太厨具有限公司 Near suction type range hood
CN106468454A (en) * 2015-08-20 2017-03-01 博西华电器(江苏)有限公司 Side-absorption type smoke exhaust ventilator
CN108006709A (en) * 2017-11-07 2018-05-08 佛山市云米电器科技有限公司 Adjustable visual response system and method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104329708A (en) * 2014-10-13 2015-02-04 宁波方太厨具有限公司 Near suction type range hood
CN106468454A (en) * 2015-08-20 2017-03-01 博西华电器(江苏)有限公司 Side-absorption type smoke exhaust ventilator
CN108006709A (en) * 2017-11-07 2018-05-08 佛山市云米电器科技有限公司 Adjustable visual response system and method

Similar Documents

Publication Publication Date Title
CN104329708B (en) Near-suction type oil smoke suction machine
CN204227496U (en) Near-suction type oil smoke suction machine
CN103353137B (en) A kind of range hood with air quantity regulatory function
CN104315578A (en) Ceiling extractor hood
CN203771504U (en) Smoke detection device of range hood
CN205560899U (en) A air speed and pressure sensor and range hood for range hood
CN106051875A (en) Extractor hood with automatically controlled gears
CN109323308A (en) Smoke exhaust ventilator and its control method
CN110260374B (en) Double-air-inlet range hood and control method thereof
CN204201982U (en) Top-sucking kitchen ventilator
CN105371328B (en) Range hood and control method with human body induction function
CN204421122U (en) The adjustable range hood of a kind of air-admitting surface
CN109990333A (en) The range hood of adjusting air inlet amount
CN110542133B (en) Automatic suction adjusting method for range hood and range hood
CN203869130U (en) Range hood with internal temperature probe
CN110230830B (en) Central flue system and target air volume control method thereof
CN206959054U (en) Speed governing range hood
CN208253672U (en) A kind of adjustable range hood of negative pressure area
CN206330191U (en) A kind of range hood with smoke deflector
CN107975844A (en) A kind of speed governing range hood
CN109882981A (en) A kind of fresh air system for kitchen use and its control method
CN206959053U (en) A kind of speed governing range hood
CN206959055U (en) A kind of range hood of adjustable suction effect
CN210772381U (en) Smoke machine
CN209655384U (en) A kind of kitchen ventilator with air guide structure

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20150325

Termination date: 20161013