CN104315578A - Ceiling extractor hood - Google Patents
Ceiling extractor hood Download PDFInfo
- Publication number
- CN104315578A CN104315578A CN201410543010.XA CN201410543010A CN104315578A CN 104315578 A CN104315578 A CN 104315578A CN 201410543010 A CN201410543010 A CN 201410543010A CN 104315578 A CN104315578 A CN 104315578A
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- China
- Prior art keywords
- cowling panel
- fume collecting
- exhaust fume
- collecting hood
- connecting rod
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Classifications
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- 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
- F24C15/2092—Removing cooking fumes movable extendable or pivotable
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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 invention relates to a ceiling extractor hood. The ceiling extractor hood comprises an exhaust fume collecting hood, a first rectification plate and a second rectification plate, wherein first and second air inlet passages are respectively formed between the first and second rectification plates and the inner cavity wall of the exhaust fume collecting hood; the first and second rectification plates are rotatably arranged on both sides of a mounting shaft; first and second driving mechanisms respectively drive the first and second rectification plates to rotate so as to adjust the area of the air inlets of the two air inlet passages; first and second temperature sensors capable of sensing the temperature of two air inlets are mounted on the exhaust fume collecting hood; the first and second driving mechanisms correspondingly drive the first rectification plate and the second rectification plate according to the temperature difference of the air inlets on both sides so that the area of the air inlet is matched with the temperature of the air inlet on the same side. The ceiling extractor hood has the advantages that the heating status of both sides is judged by sensing the distribution of temperature fields on the left and right sides by two temperature sensors, the possible direction of large and small smoke is prejudged, and the distribution of left and right negative pressure areas is adjusted by adjusting the area of the left and right air inlets by two driving mechanisms so as to improve the exhaust fume collecting effect.
Description
Technical field
The present invention relates to a kind of range hood, especially relate to a kind of top-sucking kitchen ventilator.
Background technology
At present, the many top-sucking kitchen ventilators on market are all provided with cowling panel, can improve smoke absorption effect by cowling panel, but existing cowling panel is once after installing, and the distance between itself and exhaust fume collecting hood is fixing.If the patent No. is " a kind of range hood with smoke deflector " disclosed in the Chinese invention patent of ZL200910096759.3 (Authorization Notice No. is CN 101514823B), this range hood has body, exhaust fume collecting hood and smoke deflector, exhaust fume collecting hood is provided with air inlet, smoke deflector (also known as cowling panel) just to this air inlet arrange and and exhaust fume collecting hood maintain predetermined spacing, thus the oil smoke passage passed through for oil smoke is formed therebetween at smoke deflector and exhaust fume collecting hood, smoke deflector in this patent is fixedly installed and can not moves, it exists following not enough: first, the integral installation of this top-sucking kitchen ventilator highly determines range hood distance, and to produce the pot of oil smoke distant, negative pressure loss is larger, oil extraction of cooker hood efficiency is caused to reduce, second, left and right incoming air area cannot adjust, for two kitchen range that general domestic consumer uses, if only use a pot to carry out cooking, or pot carries out cooking and another pot is cooked, the side that then there will be non-cooking or the side negative pressuren zone waste of cooking, and the negative pressuren zone that cooking side is wasted because utilizing opposite side, make the effect of its fume-exhausting also cannot be promoted.3rd, after range hood is installed, smoke deflector has certain height, and also needs during cleaning to stretch in narrow oil smoke passage to clean the smoke deflector back side, cleans very inconvenient.
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 103353137A), 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 203375507U), 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 201555288U), 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.
In addition, the top-sucking kitchen ventilator driving cowling panel to be elevated by motor is have also been disclosed, if application number is " top-sucking kitchen ventilator " disclosed in the Chinese invention patent application of 201310398663.9 (application publication number is CN 103486636A) in prior art.Although, this top-sucking kitchen ventilator drives cowling panel can be located at the air inlet of exhaust fume collecting hood up and down by motor, but range hood in use can not dynamic assignment negative pressuren zone, the negative pressuren zone distribution of adjustment left and right cannot be reached by regulating right and left air inlet area, thus smoke absorption effect needing to improve.
Summary of the invention
A technical problem to be solved by this invention is for above-mentioned prior art present situation, provides a kind of top-sucking kitchen ventilator 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 by this invention is for above-mentioned prior art present situation, provides and can adjust left and right negative pressuren zone distribution and the top-sucking kitchen ventilator of cowling panel easy to clean.
The present invention solves the problems of the technologies described above adopted technical scheme: this top-sucking kitchen ventilator, comprise blower rack, exhaust fume collecting hood, blower fan, cowling panel, described blower rack is located at exhaust fume collecting hood top, described blower fan is located in blower rack, it is characterized in that described cowling panel comprises the first cowling panel and the second cowling panel, the first air intake passage is formed between described first cowling panel and exhaust fume collecting hood inner cavity wall, form the second air intake passage between described second cowling panel and exhaust fume collecting hood inner cavity wall, described range hood also includes:
Installation shaft, the first described cowling panel and the second cowling panel are arranged on described installation shaft both sides rotationally;
First temperature sensor, the intake air temperature of perception first air intake passage;
Second temperature sensor, the intake air temperature of perception second air intake passage;
First driving mechanism, drives the first cowling panel to rotate with the air-admitting surface size regulating the first air intake passage around described installation shaft, matches to make the intake air temperature of this air-admitting surface and the first air intake passage; And
Second driving mechanism, drives the second cowling panel to rotate with the air-admitting surface size regulating the second air intake passage around described installation shaft, matches to make the intake air temperature of this air-admitting surface and the second air intake passage.
Preferably, the first described temperature sensor and the second temperature sensor are infrared sensor, and are arranged on the left and right sides of described exhaust fume collecting hood inner cavity respectively.
Installation shaft can have multiple fixed structure, and preferably, described installation shaft is located in the middle of exhaust fume collecting hood inner cavity and perpendicular to the front of exhaust fume collecting hood, installation shaft is fixed on exhaust fume collecting hood by installation shaft support.
Further preferably, the first described cowling panel is rectangle with the second cowling panel and size is identical, and the first cowling panel corresponds on the left of exhaust fume collecting hood inner cavity, and the second cowling panel corresponds on the right side of exhaust fume collecting hood inner cavity.Like this, during range hood work, negative pressuren zone can be made more reasonably to be distributed in around cowling panel after opening the first cowling panel and the second cowling panel, smoke absorption effect is better.
The first described driving mechanism and the second driving mechanism can adopt various structures, preferably, the first described driving mechanism comprises the first motor, first electric pushrod, first connecting rod and first connecting rod hitch, described first motor and the first electric pushrod are fixed on blower rack, first electric pushrod has the first external part making lifting moving under described first motor drives, the upper end thereof of first connecting rod is in the first external part bottom, lower end and the described first connecting rod hitch of first connecting rod are hinged, described first connecting rod hitch is fixed on the back side of the first cowling panel, the second described driving mechanism comprises the second motor, the second electric pushrod, second connecting rod and second connecting rod hitch, described second motor and the second electric pushrod are fixed on blower rack, second electric pushrod has the second external part making lifting moving under described second motor drives, the upper end thereof of second connecting rod is in the second external part bottom, lower end and the described second connecting rod hitch of second connecting rod are hinged, and described second connecting rod hitch is fixed on the back side of the second cowling panel.
In order to control the stroke up and down of electric pushrod external part, the first described electric pushrod and the second electric pushrod are all provided with the travel switch of the stroke up and down controlling respective external part.
The oil caught to make cowling panel can drain to lubricating cup smoothly, oil leaking hole is equipped with in the inner side of described first cowling panel and the inner side of the second cowling panel and near installation shaft place, in the below of described installation shaft, lubricating cup is installed, and described lubricating cup is positioned at the below of described oil leaking hole.
In order to prevent causing cowling panel to move down because of maloperation, described exhaust fume collecting hood is provided with the button that can drive described first motor and the second electric motor starting, above lubricating cup installation site, be provided with the light sensor that can open and close button, a control chip is connected with the signal output part of described light sensor and the control input end of described button.
The oil dripped to make blower fan system and the oil smoke of cowling panel own are separated through partial fluid the oil produced and can import to smoothly near installation shaft, under the state that described first cowling panel and the second cowling panel turn to air inlet closedown, first cowling panel and the second cowling panel tilt obliquely from Inside To Outside, and angle of inclination with respect to the horizontal plane is at least greater than 10 °.
In order to make cowling panel the short time can amass oil when catching the oil droplet that blower fan system drips, preventing long-pending oil from flowing down under cowling panel open mode, around described first cowling panel and the second cowling panel, being provided with a circle flange or a circle groove.
Compared with prior art, the invention has the advantages that: this top-sucking kitchen ventilator by being provided with the first temperature sensor and the second temperature sensor that can distinguish perception both sides intake air temperature on exhaust fume collecting hood, the heated condition of Double gas cooker kitchen range both sides is judged according to the thermo parameters method obtained, the little cigarette direction of the opium that may occur is prejudged by temperature regime, and under the driving of the first driving mechanism and the second driving mechanism, first cowling panel and the second cowling panel rotate and corresponding adjustment right and left air inlet size around installation shaft, the intake air temperature of air-admitting surface and homonymy is matched, and then adjust left and right negative pressuren zone distribution, final lifting smoke absorption effect, and the first cowling panel and the second cowling panel independently carry out rotating under corresponding driving mechanism drives and mutually do not link.In addition, range hood is under cleaning and dismounting state, and when taking off lubricating cup, two panels cowling panel all can be swung down to the position of maximum angle under each self-driven mechanism effect, cleans cowling panel to facilitate user.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention under the equal closed condition of two side fairings;
Fig. 2 is for removing the structural representation after exhaust fume collecting hood and blower rack panel under state shown in Fig. 1;
Fig. 3 is that the embodiment of the present invention is opened at a side fairing, structural representation under opposite side cowling panel closed condition;
Fig. 4 is for removing the structural representation after exhaust fume collecting hood and blower rack panel under state shown in Fig. 3;
Fig. 5 is the structural representation of the embodiment of the present invention under the equal open mode of two side fairings;
Fig. 6 is for removing the structural representation after exhaust fume collecting hood and blower rack panel under state shown in Fig. 5;
Fig. 7 is the enlarged diagram in A portion in Fig. 6;
Fig. 8 is that the embodiment of the present invention is at the structural representation cleaned and under dismounting state;
Fig. 9 is for removing the structural representation after exhaust fume collecting hood and blower rack panel under state shown in Fig. 8;
Figure 10 is the control flow chart of the controlling organization of the embodiment of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing embodiment, the present invention is described in further detail.
As shown in Figures 1 to 9, the top-sucking kitchen ventilator in the present embodiment comprises blower rack 1, exhaust fume collecting hood 2, blower fan 3, first cowling panel 41, second cowling panel 42, installation shaft 6, first temperature sensor 71, second temperature sensor 72, first driving mechanism 81, second driving mechanism 82 and controlling organization (not shown).Wherein, blower rack 1 is located at exhaust fume collecting hood 2 top, blower fan 3 is located in blower rack 1, installation shaft 6 to be located in the middle of exhaust fume collecting hood 2 inner chamber and perpendicular to the front of exhaust fume collecting hood 2, installation shaft 6 is fixed on exhaust fume collecting hood 2 by installation shaft support 11, first cowling panel 41 and the second cowling panel 42 all sized by identical rectangle and be located at the left and right sides of installation shaft 6 by hinge 13 rotationally, the first cowling panel 41 and the second cowling panel 42 form revolute pair by hinge 13 and installation shaft 6.First cowling panel 41 corresponds on the left of exhaust fume collecting hood 2 inner chamber, second cowling panel 42 corresponds on the right side of exhaust fume collecting hood 2 inner chamber, formed between first cowling panel 41 and exhaust fume collecting hood 2 internal chamber wall between the first air intake passage 51, second cowling panel 42 and exhaust fume collecting hood 2 internal chamber wall and form the second air intake passage 52.After cowling panel adopts above-mentioned symmetrical structure, during range hood work, open the first cowling panel 41 and the second cowling panel 42 can make negative pressuren zone more reasonably be distributed in around the first cowling panel 41 and the second cowling panel 42, thus obtain better smoke absorption effect.
First driving mechanism 81 is used for driving first cowling panel 41 and rotates around installation shaft 6, to regulate the air-admitting surface size of the first air intake passage 51, second driving mechanism 82 is used for driving second cowling panel 42 and rotates around installation shaft 6, to regulate the air-admitting surface size of the second air intake passage 52, further, the first cowling panel 41 and the second cowling panel 42 independently carry out rotating respectively and mutually do not link under the driving of the first driving mechanism 81 and the second driving mechanism 82.The left side on edge after first temperature sensor 71 is arranged on bottom exhaust fume collecting hood 2, is used for the intake air temperature of perception first air intake passage 51, and the second temperature sensor 72 is arranged on the right side on edge after bottom exhaust fume collecting hood, is used for the intake air temperature of perception second air intake passage 52.In the present embodiment, the first temperature sensor 71 and the second temperature sensor 72 all adopt infrared sensor.
The output of controlling organization and the first temperature sensor 71, the output of the second temperature sensor 72 and the input of the first driving mechanism 81 are connected with the input of the second driving mechanism 82, controlling organization can adopt existing microprocessor to be control chip, the temperature value that microcomputer reads first temperature sensor 71 exports and the temperature value that the second temperature sensor 72 exports, and come respective drive first driving mechanism 81 and the second driving mechanism 82 according to the difference of above-mentioned two temperatures value and both sides intake air temperature value, first driving mechanism 81 and the second driving mechanism 82 respective drive first cowling panel 41 and the second cowling panel 42 rotate, match to make the intake air temperature of air-admitting surface and homonymy.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:
Q
left in+ Q
right in=Q
out
Wherein v is cross section average speed, and A is air inlet area, and Q is volume flow.
Be the FB(flow block) of controlling organization in the present embodiment as shown in Figure 10, first hypothesis has following three conditions:
1) the first temperature sensor 71 and the second temperature sensor 72 temperature obtained of sampling uses T respectively
leftand T
rightrepresent.
2) the maximum open angle=θ (off-mode is 0 °, here in order to prevent from encountering lubricating cup and consider negative pressure distribution generally to arrange scope be 25-60 °, gets a particular value 30 °) of the first cowling panel 41 and the second cowling panel 42.
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), when temperature difference absolute value is less than or equal to this threshold value time, think after microprocessor judges that air flows the interference caused, first driving mechanism 81 is identical with the motion conditions of the second driving mechanism 82, now, first cowling panel 41 is identical with the open angle of the second cowling panel 42, and namely the air-admitting surface size of both sides is identical.
Electric power starting (user's start), when temperature difference absolute value is greater than this threshold value time, thinks after microprocessor judges that left and right sides culinary art situation is different, and is not only that air flows the thermal change caused.General family actual conditions may be exactly that quick-fried is being carried out in left side, and T, stewing slowly or cooking, is supposed in right side
left>T
right, and T
left-T
right>T
threshold, then left side driving mechanism is by this side fairing open angle to θ, and this side fairing open angle arrives by right side driving mechanism
otherwise, for T
right>T
leftsituation too, this no longer launch describe.As shown in above-mentioned formula, when side temperature is greater than other side absolute temperature more than one times time, can think do not open fire in low temperature side, the open angle of the corresponding cowling panel in this side is 0.
In microprocessor judges process, sample again after certain hour such as 10s the 3s time average judge under, and then drive the first driving mechanism 81 and the opening angle of the second driving mechanism 82 to the first cowling panel 41 and the second cowling panel 42 to adjust, and the intake air temperature of air-admitting surface and homonymy is finally made to match.
In the present embodiment, first driving mechanism 81 comprises the first motor 811, first electric pushrod 812, first connecting rod 813 and first connecting rod hitch 814, wherein, first motor 811 and the first electric pushrod 812 are fixed on blower rack 1 by fixed support 12, first electric pushrod 812 has the first external part 815 making lifting moving under the first motor 811 drives, the upper end thereof of first connecting rod 813 is in the first external part 815 bottom, lower end and the first connecting rod hitch 814 of first connecting rod 813 are hinged, first connecting rod hitch 814 is fixed on the back side of the first cowling panel 41.Second driving mechanism 82 comprises the second motor 821, second electric pushrod 822, second connecting rod 823 and second connecting rod hitch 824, wherein, second motor 821 and the second electric pushrod 822 are fixed on blower rack 1 by fixed support 12, second electric pushrod 822 has the second external part 825 making lifting moving under the second motor 821 drives, the upper end thereof of second connecting rod 823 is in the second external part 825 bottom, lower end and the second connecting rod hitch 824 of second connecting rod 823 are hinged, and second connecting rod hitch 824 is fixed on the back side of the second cowling panel 42.After adopting said structure, by first connecting rod 813, the rectilinear motion of 2 first external parts 815 is converted to the rotation of the first cowling panel 41, by second connecting rod 823, the rectilinear motion of the second external part 825 is converted to the rotation of the second cowling panel 42, and, first cowling panel 41 and the second cowling panel 42 are except inner side is hinged by hinge 13 and installation shaft 6, also distribute and obtain a fulcrum in addition, resistance to overturning is good more a lot of than directly rotating.In addition, electric pushrod 7 is provided with the first travel switch, the second travel switch and the third trip switch that control electric pushrod external part about 71 stroke, and these three travel switches all do not represent in the drawings.
Oil leaking hole 9 is equipped with near installation shaft 6 place in the inner side of the inner side of the first cowling panel 41 and the second cowling panel 42, in the below of installation shaft 6, lubricating cup 10 is installed, and lubricating cup 10 is positioned at the below of oil leaking hole 9, and, under the state that the first cowling panel 41 and the second cowling panel 42 turn to air inlet 13 closedown, first cowling panel 41 and the second cowling panel 42 tilt obliquely from Inside To Outside, and tilt angle alpha with respect to the horizontal plane is at least greater than 10 °.Like this, the oil of blower fan system drippage and the oil smoke of cowling panel own are separated through partial fluid the oil produced and can import near the installation shaft 6 smoothly, with the oil ensureing cowling panel lower end not directly lower, but are drained in lubricating cup 10 by oil leaking hole 9.
In addition, exhaust fume collecting hood 2 is provided with the button that described first motor 811 and the second motor 821 can be driven to start, above lubricating cup 10 installation site, be provided with the light sensor that can open and close button, control chip is connected with the signal output part of described light sensor and the control input end of described button.
Under the driving of the first driving mechanism 81 and the second driving mechanism 82, range hood in the present embodiment can at off-mode, switch between open state and clean these three states of (dismounting) state, and each state has a corresponding travel switch to control the stroke of electric pushrod external part.
As depicted in figs. 1 and 2, be the two side fairings state of all closing and off-mode.When range hood transfers off-mode to from using state, first motor 811 and the second motor 821 start, first external part 815 of the first electric pushrod 812 and the second external part 825 of the second electric pushrod 822 are all upwards regained, and by first connecting rod 813, second connecting rod 823 pulls respectively outside the first cowling panel 41 and the second cowling panel 42 and up rotates around installation shaft 6, under the first travel switch (not shown) controls, after first cowling panel 41 and the second cowling panel 42 are completely upwards packed up, the air inlet of both sides is closed, first motor 811 and the second motor 821 stop operating, first electric pushrod 812 and the second electric pushrod 822 stop motion.Further, if become the shape of whole exhaust fume collecting hood inner cavity by the first cowling panel 41 and the profile design of the second cowling panel 42, then the existence of user's imperceptible cowling panel in the power-offstate can be made.
As shown in Figure 3 and Figure 4, be that a side fairing is closed and the state opened of opposite side cowling panel.Now, because range hood integral fan performance is limited, for two kitchen range that current domestic consumer commonly uses, when only using a stove eye of kitchen range to carry out cooking, the first temperature sensor 71 and the second temperature sensor 72 that are positioned at exhaust fume collecting hood 2 left and right sides can measure left and right sides intake air temperature difference, and the temperature of cooking side can apparently higher than the temperature of opposite side.Now, first external part 815 of the first electric pushrod 812 moves downward, and drive the first cowling panel 41 upwards to rotate and the air-admitting surface of non-cooking side is turned down and even close, and, second external part 825 of the second electric pushrod 822 moves downward, and drive the second cowling panel 42 to rotate the air inlet of cooking side is opened further, the air-admitting surface of this side is increased and negative pressuren zone distribution more by force, thus realize best smoke absorption effect.In addition, after second cowling panel 42 rotates, the maximum height of its outer side edges is no more than lubricating cup 10 upper end, and, under the second travel switch (not shown) controls, before the second cowling panel 42 turns to and encounters lubricating cup 10 inside it, second motor 821 stops operating, the second electric pushrod 822 stop motion.In addition, owing to having a circle flange 43 around the first cowling panel 41 and the second cowling panel 42, under no matter which block cowling panel is in open mode, this cowling panel can short time long-pending oil when catching the oil droplet that blower fan system drips, and prevents long-pending oil from flowing down under cowling panel open mode downwards.
As shown in Figures 5 to 7, be the state that two side fairings are all opened.The opening procedure of the first cowling panel 41 and the second cowling panel 42 can be described above, no longer launches to describe at this.In addition, according to concrete use occasion, the first cowling panel 41 can be identical with the open angle of the second cowling panel 42, also can not be identical.
As shown in Figure 8 and Figure 9, be the clean of range hood and dismounting state.Its operation principle is: after lubricating cup 10 is loaded onto, because light is blocked by lubricating cup, light sensor can't detect the light below lubricating cup, by the control program that control chip is preset, even if now control chip receives the clean instruction (as the clean button pressed on exhaust fume collecting hood) of user, first motor 811 and the second motor 821 all can not work, and then the first electric pushrod 812 and the second electric pushrod 822 stop motion.After taking off lubricating cup, light sensor detects light, by the control program that control chip is preset, now control chip receives the clean instruction (as the clean button pressed on exhaust fume collecting hood) of user, under the control of third trip switch (not shown), first external part 815 of the first electric pushrod and the second external part 825 of the second electric pushrod all move downward until to bottom dead centre, and drive corresponding connecting rod and corresponding cowling panel to turn to maximum angle, thus facilitate user to clean cowling panel even disassembly, cleaning, to keep the clean of product.
The foregoing is only the preferred embodiment of the present invention; should be understood that; for those of ordinary skills; do not departing under principle prerequisite of the present invention; multiple remodeling or improvement can be carried out to the present invention; such as can replace light sensor with touch switch, touch switch to be arranged on above lubricating cup and to be triggered by the contact with lubricating cup, and these are all regarded as within protection scope of the present invention.
Claims (10)
1. a top-sucking kitchen ventilator, comprise blower rack (1), exhaust fume collecting hood (2), blower fan (3), cowling panel, described blower rack (1) is located at exhaust fume collecting hood (2) top, described blower fan (3) is located in blower rack (1), it is characterized in that described cowling panel comprises the first cowling panel (41) and the second cowling panel (42), the first air intake passage (51) is formed between described first cowling panel (41) and exhaust fume collecting hood (2) internal chamber wall, the second air intake passage (52) is formed between described second cowling panel (42) and exhaust fume collecting hood (2) internal chamber wall, described range hood also includes:
Installation shaft (6), described the first cowling panel (41) and the second cowling panel (42) are arranged on described installation shaft both sides rotationally;
First temperature sensor (71), the intake air temperature of perception first air intake passage;
Second temperature sensor (72), the intake air temperature of perception second air intake passage;
First driving mechanism (81), drive the first cowling panel (41) to rotate with the air-admitting surface size regulating the first air intake passage around described installation shaft (6), match to make the intake air temperature of this air-admitting surface and the first air intake passage; And
Second driving mechanism (82), drive the second cowling panel (42) to rotate with the air-admitting surface size regulating the second air intake passage around described installation shaft (6), match to make the intake air temperature of this air-admitting surface and the second air intake passage.
2. top-sucking kitchen ventilator according to claim 1, it is characterized in that: described the first temperature sensor (71) and the second temperature sensor (72) are infrared sensor, and are arranged on the left and right sides of described exhaust fume collecting hood (2) inner chamber respectively.
3. top-sucking kitchen ventilator according to claim 1, it is characterized in that: described installation shaft (6) is located in the middle of exhaust fume collecting hood (2) inner chamber and perpendicular to the front of exhaust fume collecting hood (2), installation shaft (6) is fixed on exhaust fume collecting hood (2) by installation shaft support (11).
4. top-sucking kitchen ventilator according to claim 3, described the first cowling panel (41) is rectangle with the second cowling panel (42) and size is identical, and the first cowling panel (41) is corresponding on the left of exhaust fume collecting hood (2) inner chamber, the second cowling panel (42) is corresponding on the right side of exhaust fume collecting hood (2) inner chamber.
5. top-sucking kitchen ventilator according to claim 1, it is characterized in that: described the first driving mechanism (81) comprises the first motor (811), first electric pushrod (812), first connecting rod (813) and first connecting rod hitch (814), described first motor (811) and the first electric pushrod (812) are fixed on blower rack (1), first electric pushrod (812) has the first external part (815) making lifting moving under described first motor (811) drives, the upper end thereof of first connecting rod (813) is in the first external part (815) bottom, lower end and the described first connecting rod hitch (814) of first connecting rod (813) are hinged, described first connecting rod hitch (814) is fixed on the back side of the first cowling panel (41), described the second driving mechanism (82) comprises the second motor (821), second electric pushrod (822), second connecting rod (823) and second connecting rod hitch (824), described second motor (821) and the second electric pushrod (822) are fixed on blower rack (1), second electric pushrod (822) has the second external part (825) making lifting moving under described second motor (821) drives, the upper end thereof of second connecting rod (823) is in the second external part (825) bottom, lower end and the described second connecting rod hitch (824) of second connecting rod (823) are hinged, described second connecting rod hitch (824) is fixed on the back side of the second cowling panel (42).
6. top-sucking kitchen ventilator according to claim 5, is characterized in that: the travel switch being all provided with the stroke up and down controlling respective external part on described the first electric pushrod (812) and the second electric pushrod (822).
7. top-sucking kitchen ventilator according to claim 5, it is characterized in that: be equipped with oil leaking hole (9) in the inner side of described first cowling panel (41) and the inner side of the second cowling panel (42) and near installation shaft (6) place, in the below of described installation shaft (6), lubricating cup (10) is installed, and described lubricating cup (10) is positioned at the below of described oil leaking hole (9).
8. top-sucking kitchen ventilator according to claim 7, it is characterized in that: on described exhaust fume collecting hood (2), be provided with the button that described first motor (811) and the second motor (821) can be driven to start, be provided with the light sensor that can open and close button in the top of lubricating cup (10) installation site, a control chip is connected with the signal output part of described light sensor and the control input end of described button.
9. top-sucking kitchen ventilator according to claim 1, it is characterized in that: under the state that described first cowling panel (41) and the second cowling panel (42) turn to air inlet closedown, first cowling panel (41) and the second cowling panel (42) tilt obliquely from Inside To Outside, and angle of inclination with respect to the horizontal plane is at least greater than 10 °.
10. the top-sucking kitchen ventilator according to claim arbitrary in claim 1 to 9, is characterized in that: around described first cowling panel (41) and the second cowling panel (42), be provided with a circle flange or a circle groove.
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| CN201410543010.XA CN104315578B (en) | 2014-10-13 | 2014-10-13 | Top-sucking kitchen ventilator |
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| CN201410543010.XA CN104315578B (en) | 2014-10-13 | 2014-10-13 | Top-sucking kitchen ventilator |
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| CN104315578B CN104315578B (en) | 2016-08-24 |
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