CN112747349A - Method and device for controlling direct-current range hood - Google Patents
Method and device for controlling direct-current range hood Download PDFInfo
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- CN112747349A CN112747349A CN201911055534.3A CN201911055534A CN112747349A CN 112747349 A CN112747349 A CN 112747349A CN 201911055534 A CN201911055534 A CN 201911055534A CN 112747349 A CN112747349 A CN 112747349A
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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
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- F24C15/20—Removing cooking fumes
- F24C15/2021—Arrangement or mounting of control or safety systems
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Abstract
The application relates to a method for controlling a direct current range hood, the direct current range hood comprising: the collection smoke chamber, with the fan of collection smoke chamber intercommunication to and set up in the outside chamber of holding together the cigarette of collection smoke chamber, hold together the cigarette chamber liftable, the method for controlling direct current lampblack absorber includes: determining the variation amplitude of the oil smoke concentration; when the change amplitude of the oil smoke concentration is larger than or equal to the threshold value, the height of the smoke collecting cavity is adjusted, and/or the rotating speed of the fan is adjusted. According to the method, the height of the smoke gathering cavity and/or the rotating speed of the fan are/is adjusted according to the comparison between the change range of the oil smoke concentration and the threshold value, so that the direct current range hood can be intelligently adjusted according to the oil smoke condition, and the smoke gathering and smoking effect is improved. The application also relates to a device for controlling the direct current range hood.
Description
Technical Field
The application relates to the technical field of range hoods, for example to a method and a device for controlling a direct-current range hood.
Background
The existing kitchen range hood increases the height of a high-rise building, the resistance of a flue and the high-altitude wind resistance are increased continuously, and the problems of unsmooth oil smoke absorption and smoke leakage caused by insufficient wind volume and wind pressure are often presented. In general, to overcome the above situation, the existing solutions are basically as follows: 1. the size of the fan of the range hood is increased or the rotating speed of the fan is increased, but the schemes bring negative effects, and the increase of the size of the whole fan can lead the volume of the whole machine to be correspondingly increased, the cost is increased and the structure is heavy; the improvement of the rotating speed can cause the noise of the whole machine to be increased to cause the use complaint of users, and meanwhile, the scheme can greatly increase the power consumption of the motor. 2. Auxiliary structures such as lifting baffles are added in the existing cigarette making machine, but the negative pressure areas of the schemes sink limitedly, so that the aim of completely sucking the oil smoke under various conditions is difficult to achieve.
Some proposals are that an air curtain air duct is arranged outside a smoke collection cavity of the range hood, so that the periphery of a smoke suction port forms an air curtain capable of gathering smoke. In the process of implementing the embodiments of the present disclosure, it is found that at least the following problems exist in the related art: the range hood can not adapt to various oil smoke conditions during operation, and has limited smoke collecting and smoking effects.
Disclosure of Invention
The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview nor is intended to identify key/critical elements or to delineate the scope of such embodiments but rather as a prelude to the more detailed description that is presented later.
The embodiment of the disclosure provides a method and a device for controlling a direct current range hood, and aims to solve the technical problems that the range hood cannot adapt to various oil smoke conditions during operation, and the smoke collecting and smoking effects are limited.
In some embodiments, a direct current range hood includes: the smoke collecting cavity is communicated with the fan and arranged outside the smoke collecting cavity, and the smoke collecting cavity can be lifted; the method for controlling the direct current range hood comprises the following steps: determining the variation amplitude of the oil smoke concentration; when the change amplitude of the oil smoke concentration is larger than or equal to the threshold value, the height of the smoke collecting cavity is adjusted, and/or the rotating speed of the fan is adjusted.
In some embodiments, an apparatus for controlling a direct current range hood includes: the control system comprises a processor and a memory storing program instructions, wherein the processor is configured to execute the method for controlling the direct current range hood provided by any one of the preceding embodiments when the program instructions are executed.
The embodiment of the disclosure provides a method and a device for controlling a direct current range hood, which can achieve the following technical effects: the direct-current range hood comprises a smoke collecting cavity and a smoke collecting cavity, wherein the smoke collecting cavity can absorb oil smoke, the smoke collecting cavity can form an air curtain at the periphery of a smoke suction port of the smoke collecting cavity, the whole effect of oil smoke suction is enhanced by combining smoking and smoke collecting, the smoke collecting cavity can be lifted along with the lifting of the smoke collecting cavity, and the smoke collecting and smoking effect of the direct-current range hood can be adjusted by adjusting the height of the smoke collecting cavity; according to the method, the height of the smoke gathering cavity and/or the rotating speed of the fan are/is adjusted according to the comparison between the change range of the oil smoke concentration and the threshold value, so that the direct current range hood can be intelligently adjusted according to the oil smoke condition, and the smoke gathering and smoking effect is improved.
The foregoing general description and the following description are exemplary and explanatory only and are not restrictive of the application.
Drawings
One or more embodiments are illustrated by way of example in the accompanying drawings, which correspond to the accompanying drawings and not in limitation thereof, in which elements having the same reference numeral designations are shown as like elements and not in limitation thereof, and wherein:
fig. 1 is a schematic flow chart of a method for controlling a direct current range hood provided by an embodiment of the present disclosure;
FIG. 2 is a schematic flow chart diagram of a method for controlling a direct current range hood provided by another disclosed embodiment;
fig. 3 is a schematic structural diagram of a device for controlling a direct current range hood provided by an embodiment of the present disclosure.
Detailed Description
So that the manner in which the features and elements of the disclosed embodiments can be understood in detail, a more particular description of the disclosed embodiments, briefly summarized above, may be had by reference to the embodiments, some of which are illustrated in the appended drawings. In the following description of the technology, for purposes of explanation, numerous details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may be practiced without these details. In other instances, well-known structures and devices may be shown in simplified form in order to simplify the drawing.
Fig. 1 is a schematic flow chart of a method for controlling a direct current range hood provided by an embodiment of the present disclosure. As shown in fig. 1, an embodiment of the present disclosure provides a method for controlling a direct current range hood, where the direct current range hood includes: the collection smoke chamber, with the fan of collection smoke chamber intercommunication to and set up in the outside chamber of holding together the cigarette of collection smoke chamber, hold together the cigarette chamber liftable, this a method for controlling direct current lampblack absorber includes:
s201, determining the change amplitude of the oil smoke concentration;
s202, judging whether the variation amplitude of the oil smoke concentration is larger than or equal to a threshold value, if not, executing a step S203, and if so, executing a step S204;
s203, keeping the height of the smoke collecting cavity and the rotating speed of the fan;
s204, adjusting the height of the smoke collecting cavity and/or adjusting the rotating speed of the fan.
The inlet of the smoke collection cavity faces the cooking bench, the outlet of the smoke collection cavity is communicated with the oil smoke channel, the smoke collection cavity is configured to suck oil smoke generated in the cooking process and send the oil smoke to the outside through the oil smoke channel under the action of the fan, and the fan is configured to generate suction force to suck the oil smoke into the smoke collection cavity. The smoke collecting cavity is configured to form an air curtain at the periphery of an inlet of the smoke collecting cavity so as to surround the oil smoke, and the oil smoke is prevented from diffusing to the periphery of the cooking bench to form an effect of collecting the oil smoke. The air outlet of the smoke gathering cavity is arranged at the periphery of the inlet of the smoke gathering cavity, so that the formed air curtain can achieve the effect of gathering the oil smoke. The smoke collecting cavity can be lifted, the closer the smoke collecting cavity is to the cooking bench, the stronger the smoke collecting effect is, but the too close smoke collecting cavity can block the sight of a user and influence the cooking action of the user; the farther from the cooktop, the weaker the smoke collection effect, but the larger the cooking space left for the user. In order to facilitate the operation of the lifting of the smoke collecting cavity, the volume of the smoke collecting cavity is smaller than that of a smoking part of a conventional range hood, and the volume of the smoke collecting cavity is reduced along with the volume of the smoke collecting cavity.
The oil smoke concentration can reflect the size of the oil smoke condition, and the oil smoke condition can be judged by determining the change amplitude of the oil smoke concentration. The oil smoke concentration is detected by arranging a smoke sensor. The smoke sensor may be located at or below the entrance to the smoke collection chamber.
The oil smoke diffusion path comprises a plurality of areas, namely a generation area, a rising area, a convergence area and a diffusion area from bottom to top, wherein the optimal smoking area convergence area converges to a height area which is about 400mm away from the cooking bench. The oil smoke can be collected in the convergence area before being diffused, and the oil smoke sucking degree can be obviously improved under the conditions of the same suction force and the smoke collecting cavity.
When the change amplitude of the oil smoke concentration is larger than or equal to the threshold value, the oil smoke concentration is changed violently; when the change range of oil smoke concentration is less than the threshold value, it shows that the oil smoke concentration change is little, at this moment, can keep holding together the height of cigarette chamber and the rotational speed of fan, can carry out effectual cigarette and smoking of holding together to the oil smoke that produces, satisfies the user to the demand of culinary art environment.
The cigarette gathering cavity is arranged outside the cigarette gathering cavity, the cigarette gathering cavity can be fixed outside the cigarette gathering cavity, and the cigarette gathering cavity is driven to lift by adjusting the lifting of the cigarette gathering cavity. The direct current range hood further comprises an oil smoke pipeline which is fixedly arranged, and the smoke collecting cavity is arranged at the lower part of the oil smoke pipeline, is sleeved with the oil smoke pipeline and can slide relative to the oil smoke pipeline. The specific lifting structure can be realized by adopting the existing structure for adjusting the relative position between the sleeves.
When the height of the smoke collecting cavity is larger, the smoke collecting cavity is farther away from the cooking bench, the formed air curtain is farther away from the oil smoke, and the smoke collecting effect is weaker; when the height of the smoke collecting cavity is smaller, the smoke collecting cavity is closer to the cooking bench, the formed air curtain is closer to the oil smoke, and the smoke collecting effect is stronger.
When the rotating speed of the fan is larger, the generated oil smoke suction force is stronger, and when the rotating speed is smaller, the oil smoke suction force is weaker. For smaller oil smoke concentration, the rotating speed can be set to be smaller, and for larger oil smoke concentration, the rotating speed can be set to be larger.
When oil smoke amplitude of change is great, according to the comparison of oil smoke concentration amplitude of change and threshold value, the height of cigarette chamber is held together in selective regulation, and/or, adjusts the rotational speed of fan, can be more intelligent to the regulation of straight-flow range hood, under the condition that satisfies user's user demand, promotes and holds together cigarette smoking effect, improves the culinary art environment.
In some embodiments, when the increase value of the oil smoke concentration is greater than or equal to the first threshold value, the height of the oil smoke collecting cavity is adjusted, and/or the rotating speed of the fan is adjusted; and when the reduction value of the oil smoke concentration is greater than or equal to the second threshold value, adjusting the height of the smoke collecting cavity, or adjusting the rotating speed of the fan.
When the oil smoke concentration changes, there are two kinds of circumstances, firstly oil smoke concentration increase, secondly oil smoke concentration reduces, distinguishes two kinds of situation of change, adjusts the height of holding together the cigarette chamber to the situation of change of difference, perhaps, adjusts the rotational speed of fan, makes the oil smoke circumstances that holds together cigarette and smoking intensity more accord with the reality, also can save the electric energy.
The method comprises the steps of setting a first threshold value and a second threshold value respectively by taking an increase value and a decrease value of the concentration of dense smoke as parameters for inspecting the change degree of the oil smoke, wherein the first threshold value is taken as a reference value of the increase value of the concentration of the oil smoke, the second threshold value is taken as a reference value of the decrease value of the concentration of the oil smoke, and selecting and adjusting the height of a smoke gathering cavity and/or adjusting the rotating speed of a fan according to the comparison condition of the increase value and the decrease value with the threshold values respectively, so that the control mode is more accurate, and the intensity of the smoke gathering and smoking accords with the change degree of the oil smoke.
Optionally, the first threshold is D1, and (D)max-Dmin)/20＜D1＜(Dmax-Dmin) /3 wherein DmaxMaximum value of soot concentration, DminIs the minimum value of the oil fume concentration. The maximum value of the oil smoke concentration is the statistical oil smoke concentration during the stir-frying. The oil smoke concentration can be measured by testing the current light transmittance through an infrared sensor, can also be measured in an image recognition mode or a VOC sensor or the like, and is not limited to the three testing modes. Thus, the increase condition of the oil smoke concentration can be judged. Alternatively, DmaxThe average value of the oil smoke concentration during stir-frying counted under various stir-frying modes. Alternatively, DminThe average value of the values measured for a plurality of times under the condition of no oil smoke. Thus, DmaxAnd DminMore precisely a little. Optionally, the second threshold is D2, (D)max-Dmin)/20＜D2＜(Dmax-Dmin) /3 wherein DmaxMaximum value of soot concentration, DminFor cooking fumesMinimum value of concentration. Thus, the reduction of the oil smoke concentration can be judged. Optionally, when the PM2.5 detector is adopted to detect the oil smoke concentration, DmaxIs 80mg/m3～100mg/m3，DminIs 0mg/m3～10mg/m3. Thus, can pass through DmaxAnd DminThe first threshold value and the second threshold value are calculated from the values of (A) and (B). Optionally, the PM2.5 detector is disposed in a central position of the smoke collecting cavity.
Optionally, when the increase value of the oil smoke concentration is greater than or equal to the first threshold, the following steps are executed: judging whether the increased oil smoke concentration is greater than or equal to a preset concentration, and if not, adjusting the rotating speed of the fan in a third mode or adjusting the height of the smoke collecting cavity in a fourth mode according to the current height of the smoke collecting cavity; if yes, the rotating speed of the fan is adjusted in a first mode, and the height of the cigarette collecting cavity is adjusted in a second mode.
And when the increase value of the oil smoke concentration is greater than or equal to the first threshold value, detecting the increased oil smoke concentration, and comparing the increased oil smoke concentration with a preset concentration. The preset concentration is the maximum oil smoke concentration, if the increased oil smoke concentration is smaller than the preset concentration, the increased oil smoke concentration does not reach a higher concentration, the current height of the smoke gathering cavity is combined, the rotating speed of the fan or the height of the smoke gathering cavity is further determined to be required to be adjusted, the control over the fan and the smoke gathering cavity can be more accurate, certain change is generated in the oil smoke concentration, the smoke absorption and the smoke gathering are achieved under the condition that the concentration value is not too high after the change, the cooking requirement of a user is met, and unnecessary device adjustment is reduced.
If the increased oil smoke concentration is greater than or equal to the preset concentration, the increased oil smoke concentration is higher. At the moment, the height of the smoke gathering cavity and the rotating speed of the fan need to be adjusted together, so that the smoking and smoke gathering effects of the oil smoke are enhanced, and the concentration of the oil smoke is reduced rapidly. If D is not less than DmaxWherein D is the concentration of oil smoke, DmaxIf the concentration is preset, the oil smoke concentration is very high, and at the moment, the range hood needs to be rotated at the maximum rotating speed NmaxRunning, and setting the height of the smoke-gathering cavity as the lowest value Hmin。
In some embodiments, when the height of the current cigarette collecting cavity is smaller than or equal to the first height, the rotating speed of the fan is adjusted in a third mode; or when the height of the current cigarette collecting cavity is larger than the first height, the height of the cigarette collecting cavity is adjusted in a fourth mode.
If the increased oil smoke concentration is smaller than the preset concentration, the increased oil smoke concentration is not very high, the distance between the smoke collecting cavity and the cooking bench is relatively short under the condition that the current height of the smoke collecting cavity is smaller than or equal to the first height, the height of the smoke collecting cavity is not suitable to be adjusted at the moment, otherwise, the distance between the smoke collecting cavity and the cooking bench is too short, and the cooking action of a user is influenced. Therefore, the rotating speed of the fan is adjusted in a third mode, the smoke absorption effect is improved and the oil smoke treatment capacity of the direct current range hood is enhanced through the change of the rotating speed of the fan.
Under the condition that the height of the current smoke gathering cavity is larger than the first height, the distance between the smoke gathering cavity and the cooking bench is not too close, the oil smoke environment can be improved by adjusting the height of the smoke gathering cavity, the smoke gathering effect is enhanced, and the cooking action of a user cannot be influenced. Therefore, the height of the smoke collecting cavity is adjusted in a fourth mode, the smoke collecting effect of the direct-current range hood is enhanced, and the oil smoke treatment capacity of the direct-current range hood is further enhanced.
In some embodiments, the third way is to increase the rotational speed of the fan. The rotating speed of the fan is increased to enable the direct-current range hood to have stronger suction force on oil smoke, and when the increase value of the concentration of the oil smoke is larger than or equal to the first threshold value, if the height of the current smoke gathering cavity is smaller than or equal to the first height, the rotating speed of the fan is increased, and the smoking effect is enhanced. As an example, if D < DmaxWherein D is the concentration of oil smoke, DmaxIf the maximum value of the oil fume concentration is reached, judging whether the height H of the current fume collecting cavity from the cooking bench is greater than Hmin+ Δ H1, where Δ H1 is the height turn down amplitude; if H is less than or equal to HminAnd + Δ H1, the smoke collecting cavity reaches the vicinity of the lowest height, and the smoking effect can be improved only by increasing the rotating speed of the fan. As an example, if the current fan speed N < NmaxAnd the rotating speed is regulated to be larger by the amplitude of minus delta N1 and minus delta N1, which indicates that the rotating speed of the range hood can be increased, and the rotating speed of the fan is increased by minus delta N1. If the current wind isThe machine rotating speed N is more than or equal to NmaxIf the rotating speed of the fan cannot be increased by delta N1, the rotating speed of the fan should be adjusted to N1maxThe range hood can reach the maximum oil smoke suction capacity of the range hood.
In some embodiments, the fourth way is to lower the height of the smoke-collecting chamber. The distance between the smoke collecting cavity and the cooking bench can be closer by reducing the height of the smoke collecting cavity, and when the increase value of the oil smoke concentration is larger than or equal to a first threshold value, if the current height of the smoke collecting cavity is larger than the first height, the height of the smoke collecting cavity is reduced, and the smoke collecting effect is enhanced. As an example, if D < DmaxWherein D is the concentration of oil smoke, DmaxIf the maximum value of the oil fume concentration is reached, judging whether the height H of the current fume collecting cavity from the cooking bench is greater than Hmin+ Δ H1, where Δ H1 is the height turn down amplitude; if H is not less than Hmin+ Δ H1, the smoke-collecting chamber runs down Δ H1.
In some embodiments, the first way is to adjust the rotational speed of the fan to a maximum rotational speed. If the increased oil smoke concentration is greater than or equal to the preset concentration, the increased oil smoke concentration is higher, the rotating speed of the fan is adjusted to the maximum rotating speed at the moment, the suction intensity of the fan reaches the highest, and the direct-current range hood operates in the strongest smoking state. Maximum rotation speed of NmaxIf the current fan rotating speed N is less than NmaxAnd the rotating speed is regulated to be larger by the amplitude of minus delta N1 and minus delta N1, which indicates that the rotating speed of the range hood can be increased, and the rotating speed of the fan is increased by minus delta N1. If the current fan rotating speed N is more than or equal to NmaxIf the rotating speed of the fan cannot be increased by delta N1, the rotating speed of the fan should be adjusted to N1maxThe range hood can reach the maximum oil smoke suction capacity of the range hood.
HminThe shortest distance between the smoke collecting cavity and the cooking bench. When the distance H between the smoke collecting cavity and the cooking bench is more than or equal to HminIn time, the following situations do not occur in the range hood: (1) the heat load efficiency of the gas stove is reduced by more than 3% due to the over-low air suction inlet; (2) the smoke collecting cavity and the smoke collecting cavity can shield the sight of a user due to the excessively low air suction inlet (the user is arranged according to the height of more than or equal to 1.55 meters, and the height of the cooking bench is arranged according to 0.8 meter); (3) the operator can not finish stir-frying, small-amplitude ladle tilting and taking and placing due to too low smoke collecting cavityPot cover, etc.
When the range hood is started, the smoke collecting cavity is lowered to the default height H by the lifting mechanism driven by the direct current motor0(height of smoke collecting cavity from cooking bench) and rotating at default speed N0And performing oil smoke suction work. H0According to the factors of oil smoke convergence height range, no shielding of the sight of a cooker, no influence on the operation of the cooker and the like, 350mm is determined<H0<550mm (traditional kitchen ventilator H)0Approximatively 700 mm). Alternatively, H0500 mm. In this way, the default height facilitates cooking by the user, as well as adjustment to various heights. Alternatively, HminIs 250mm<Hmin<550mm, and Hmin<H0. Thus, HminNot so small as to interfere with the user's various cooking operations. Alternatively, Hmin300 mm. When the height of the smoke collecting cavity is 300mm from the cooking bench, the smoke collecting cavity is suitable. Optionally, when the oil smoke concentration increases, the height of the smoke collecting cavity is adjusted downwards, and the amplitude of the downward adjustment is Δ H1 ═ H (H)0-Hmin)*ΔD/(Dmax-Dmin) (ii) a When the concentration of the oil smoke is reduced, the height of the smoke collecting cavity is increased upwards, and the increasing amplitude is delta H2 (H)max-H0)*ΔD/(Dmax-Dmin) Wherein H is0Default height for the chamber for holding tobacco together, HminThe shortest distance between the smoke collecting cavity and the cooking bench. Delta D is the range of change of oil fume concentration, DmaxMaximum value of soot concentration, DminIs the minimum value of the oil fume concentration. Thus, the action amplitude of the cigarette gathering cavity can be calculated.
Alternatively, when the concentration of soot increases and the rotation speed of the fan needs to be increased, the increase amplitude Δ N1 is (N)max-N0)*ΔD/(Dmax-Dmin) (ii) a When the concentration of the oil smoke is reduced and the rotating speed of the fan needs to be reduced, the reduction amplitude is delta N2 (N)0-Nmin)*ΔD/(Dmax-Dmin) In which N isminIs the lowest rotation speed of the fan, and Delta D is the change range of the oil smoke concentration, DmaxMaximum value of soot concentration, DminIs the minimum value of the soot concentration, N0Is the initial default rotating speed of the running of the fan. Alternatively, NminIs electricityAnd controlling the lowest rotation speed of the allowed fan. Therefore, the speed regulation amplitude of the fan can be calculated.
Exemplarily, Dmax＝100mg/m3，Dmin＝10mg/m3，H0＝500mm，Hmin＝250mm，Hmax＝700mm，Nmin＝750rpm，Nmax＝1500rpm，
N0The initial default rotating speed for the operation of the fan of the range hood is about 800-900 rpm generally, and 900rpm is taken in the example;
if the soot increase Δ D is 30mg/m3And Δ D > D threshold
Then Δ H1 ═ H (H)0-Hmin)*ΔD/(Dmax-Dmin)
＝(500-250)*30/90＝83mm。
Then Δ N1 ═ N (N)max-N0)*ΔD/(Dmax-Dmin)
＝(1500-900)*30/90＝200rpm。
In some embodiments, the second way is to adjust the height of the cigarette collecting cavity to the lowest height.
Under the condition that the increased oil smoke concentration is higher, the smoke collecting cavity is adjusted to the lowest height at the moment, the smoke collecting cavity is closest to the cooking bench, the formed air curtain has the strongest smoke collecting effect on the oil smoke, and the direct-current range hood is enabled to operate in the strongest smoke collecting state. The smoke collecting cavity is combined with the lowest height to adjust the fan to the maximum rotating speed, so that smoke can be effectively absorbed and collected for high-concentration oil smoke, and the cooking environment is improved.
Optionally, when the reduction value of the soot concentration is greater than or equal to a second threshold, performing the following steps:
judging whether the height of the current cigarette gathering cavity is larger than or equal to a preset height, and if not, increasing the height of the cigarette gathering cavity; and if so, reducing the rotating speed of the fan.
When the decrement value of oil smoke concentration is greater than or equal to the second threshold value, it shows that the oil smoke reduction degree is comparatively showing, and the user reduces the demand of pumping the oil smoke, and at this moment, combine the height of holding together the cigarette chamber at present to adjust, compares and directly reduces the wind speed or put forward the height of holding together the cigarette chamber, adjusts more accurately, accords with the oil smoke condition of reality more.
If the height of the current smoke gathering cavity is larger than or equal to the preset height, the fact that the smoke gathering cavity is far away from a cooking bench is shown, the effect of processing oil smoke is not changed greatly by adjusting the height of the smoke gathering cavity, the rotating speed of the fan is adjusted preferentially, the effect of processing the oil smoke (smoking and smoke gathering) which is obvious can be achieved by reducing the rotating speed, absorption of clean air of non-oil smoke is reduced, and energy is saved. If the height that gathers together the smoke chamber at present is less than predetermineeing the height, indicates that the distance between gathering together smoke chamber and the top of a kitchen range is nearer, in order to make work noise, the consumption of lampblack absorber minimum when guaranteeing the clean-up oil smoke, and increase user's culinary art space, then promote the height that gathers together the smoke chamber, also can realize the treatment effect to the oil smoke.
Optionally, whether the height H of the current smoke collecting cavity from the cooking bench is smaller than H or not is judgedmaxΔ H2, Δ H2 is the amplitude of the smoke-collecting cavity, if H < HmaxΔ H2, and the upward (away from the cooking bench) operation Δ H2 indicates that the smoke collecting cavity has reached the vicinity of the maximum height, and the height of the smoke collecting cavity should be raised to Hmax. In order to improve the user experience, whether the rotating speed N of the fan is greater than N is further judgedmin+ΔN2，NminAnd the delta N2 is the minimum rotating speed of the fan and is the amplitude of the reduction of the rotating speed of the fan. If N is less than or equal to Nmin+ Δ N2, it indicates that the fan speed has reached near the minimum value, the reduction cannot reach Δ N2, and the range hood speed should be adjusted to N at this timemin(ii) a If N > NminAnd + delta N2, the rotating speed of the fan is reduced by delta N2, and further the working noise and the power consumption of the range hood are reduced.
Exemplarily, as shown in fig. 2, the method for controlling the direct current range hood includes:
s301, starting up;
s302, the smoke collecting cavity of the range hood is operated downwards to reach a default height H0；
S303, judging whether the oil smoke concentration D is increased, if so, executing a step S304, otherwise, executing a step S314;
s304, judging whether the oil smoke concentration meets the condition that the increment value delta D is larger than or equal to D1, if so, executing the step S305, and if not, keeping the height of the smoke collecting cavity and the rotating speed of the fan;
s305, judging whether the oil smoke concentration D satisfies that D is less than DmaxIf yes, executing step S308, otherwise executing step S306; dmaxThe maximum value of the oil fume concentration;
s306, adjusting the rotating speed of the fan to Nmax；NmaxIs the maximum rotation speed;
s307, the smoke collecting cavity of the range hood moves downwards to the lowest height Hmin；HminIs the minimum height of the cigarette gathering cavity;
s308, judging whether the current height of the cigarette holding cavity meets the condition that H is more than HminA +. DELTA.H 1, if yes, go to step S309, otherwise, go to step S310; the delta H1 is the height adjustment amplitude of the cigarette-collecting cavity;
s309, operating a smoke collecting cavity of the range hood downwards by delta H1;
s310, judging whether the current rotating speed of the fan meets the condition that N is larger than NmaxΔ N1, if yes, go to step S311, if no, go to step S312;
s311, increasing the rotating speed of the fan by delta N1; the delta N1 is the amplitude of the fan rotating speed;
s312, adjusting the rotating speed of the fan to Nmax；
S313, judging whether the reduction value of the oil smoke concentration meets the condition that the delta D is more than or equal to D2, if so, executing the step S314, and if not, keeping the height of the smoke collecting cavity and the rotating speed of the fan;
s314, judging whether the current height of the cigarette holding cavity meets the condition that H is less than Hmax-. Δ H2, if yes, perform step S315, otherwise perform step S316; hmaxIs the maximum value of the height of the cigarette collecting cavity;
s315, adjusting the height of a smoke collecting cavity of the range hood upwards to delta H2;
s316, judging whether the current rotating speed of the fan meets the condition that N is larger than Nmin+ DELTAN 2, if yes, go to step S317, otherwise go to step S318;
s317, reducing the rotating speed of the fan by delta N2; delta N2 is the amplitude of the fan speed
S318, adjusting the rotating speed of the fan to Nmin；NminIs the minimum rotational speed.
When the range hood is started, the smoke collecting cavity structure is lowered to the default height H0(height from cooktop) and at a default speed N0And performing oil smoke suction work. H0According to the factors of oil smoke convergence height range, no shielding of the sight of a cooker, no influence on the operation of the cooker and the like, 350mm is determined<H0<550 mm. Alternatively, H0＝500mm。
When the oil smoke concentration D changes, if the oil smoke concentration increases, whether the change quantity delta D of the oil smoke concentration is in the set action threshold value D or not is judgedThreshold valueWithin the range. If the range of the delta D does not exceed the threshold range, the height of the cigarette collecting cavity is unchanged. And if the range of the delta D exceeds the threshold range, the height of the delta D is judged to carry out lifting action according to the next step.
Wherein the setting principle of the delta D is as follows: when the oil smoke changes suddenly or the change is accumulated to a certain degree, the height of the oil smoke can respond in time, and the working noise and the power consumption of the range hood are minimized while the oil smoke is ensured to be completely absorbed; meanwhile, the frequent action of the smoke collecting cavity height of the range hood is avoided, and the normal use and cooking experience of a user are influenced. Optionally, (D)max-Dmin)/20<DThreshold value<(Dmax-Dmin)/3. Alternatively, DThreshold value＝(Dmax-Dmin)/10. Wherein DmaxThe maximum oil smoke concentration is the statistical oil smoke concentration during stir-frying DminThe lowest oil smoke concentration. The oil smoke concentration D can be measured by testing the current light transmittance with an infrared sensor, and also can be measured in an image recognition mode or a VOC sensor mode, and is not limited to the above three test modes. And defining the average value of the values measured by the above specified certain detection modes under various stir-frying modes as the maximum oil smoke concentration calibration value DmaxTaking the average value of the values measured by a certain detection mode specified above under the condition of no oil smoke as the minimum oil smoke concentration calibration value Dmin。
If the oil smoke concentration is increased and the delta D is more than or equal to D1, judging whether the current oil smoke concentration D is less than the maximum oil smoke concentration D or notmax. If D is not less than DmaxIf the oil smoke concentration is very high, the range hood needs to rotate at the maximum speedNmaxRunning, and setting the height of the smoke-gathering cavity as the lowest value Hmin。
If D is<DmaxJudging whether the height H of the current smoke collecting cavity from the cooking bench is greater than Hmin+ Δ H1 if H>Hmin+ Δ H1, the smoke-collecting chamber is operated Δ H1 downward (close to the cooktop).
If D is<DmaxAnd H is less than or equal to HminAnd + Δ H1, the smoke collecting cavity reaches the vicinity of the lowest height, and the smoking effect can be improved only by increasing the rotating speed of the fan. If the current fan rotating speed N<NmaxAnd deltan 1, indicating that the fan speed can be increased, and increasing the fan speed by deltan 1. If the current fan rotating speed N is more than or equal to NmaxΔ N1, the fan speed is adjusted to a maximum speed Nmax。
Wherein N ismaxAt the maximum speed of operation of the fan, HminThe shortest distance between the smoke collecting cavity and the cooking bench. When the distance H between the smoke collecting cavity and the cooking bench is more than or equal to HminIn time, the following situations do not occur in the range hood: (1) the heat load efficiency of the gas stove is reduced by more than 3% due to the over-low air suction inlet; (2) the smoke collecting cavity shields the sight of a user due to the fact that the air suction opening is too low (the user is arranged according to the height of more than or equal to 1.55 m, and the height of the cooking bench is arranged according to 0.8 m); (3) due to the fact that the smoke collecting cavity is too low, an operator cannot finish conventional cooking actions such as stir-frying, small-amplitude spoon turning, pot cover taking and placing and the like.
If the oil smoke concentration is reduced and the reduction delta D is larger than or equal to D2, the requirement of the user for sucking the oil smoke is judged to be reduced. In order to ensure that the working noise and the power consumption of the range hood are minimum while the oil smoke is completely sucked, and the cooking space of a user is enlarged, the height of the smoke collecting cavity is increased.
Further judging whether the height H of the current smoke-collecting cavity from the cooking bench is less than HmaxΔ H2, if H < HmaxΔ H2, then Δ H2 is run up (away from the cooktop). If H is not less than HmaxAnd deltah 2, indicating that the smoke-collecting cavity has reached the vicinity of the maximum height, and the height cannot be further raised. In order to improve the user experience, whether the rotating speed N of the fan is greater than N is further judgedmin+ Δ N2. If N is less than or equal to Nmin+ Δ N2, it indicates that the fan speed has reached the lowest valueNearby, at the moment, the rotating speed of the fan is adjusted to Nmin(ii) a If N > NminAnd + delta N2, the rotating speed of the fan is reduced by delta N2, and further the working noise and the power consumption of the range hood are reduced.
The disclosed embodiment provides a device for controlling a direct current range hood, which comprises a processor and a memory stored with program instructions, wherein the processor is configured to execute the method for controlling the direct current range hood provided by any one of the foregoing embodiments when executing the program instructions. The device for controlling the direct-current range hood can adjust the height of the smoke collecting cavity of the range hood and the rotating speed of the fan according to the change condition of the oil smoke concentration by executing the method for controlling the direct-current range hood, so that the actual oil smoke condition is met, and unnecessary energy waste is saved.
In some embodiments, an apparatus for controlling a direct current range hood includes: at least one processor (processor)100, one processor 100 being exemplified in fig. 3; and a memory (memory)101, and may further include a Communication Interface (Communication Interface)102 and a bus 103. The processor 100, the communication interface 102, and the memory 101 may communicate with each other via a bus 103. The communication interface 102 may be used for information transfer. The processor 100 may call logic instructions in the memory 101 to perform the method for controlling the direct current range hood provided by the above embodiments.
In addition, the logic instructions in the memory 101 may be implemented in the form of software functional units and stored in a computer readable storage medium when the logic instructions are sold or used as independent products.
The memory 101, which is a computer-readable storage medium, may be used for storing software programs, computer-executable programs, such as program instructions/modules corresponding to the methods in the embodiments of the present disclosure. The processor 100 executes functional applications and data processing by running software programs, instructions and modules stored in the memory 101, that is, implements the method for controlling the direct current range hood in the above method embodiment.
The memory 101 may include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; the storage data area may store data created according to the use of the terminal device, and the like. In addition, the memory 101 may include a high-speed random access memory, and may also include a nonvolatile memory.
The disclosed embodiments provide a computer-readable storage medium storing computer-executable instructions configured to perform the above-described method for controlling a direct current range hood.
An embodiment of the present disclosure provides a computer program product, which includes a computer program stored on a computer-readable storage medium, the computer program including program instructions, which, when executed by a computer, cause the computer to execute the above method for controlling a direct current range hood.
The computer-readable storage medium described above may be a transitory computer-readable storage medium or a non-transitory computer-readable storage medium.
The technical solution of the embodiments of the present disclosure may be embodied in the form of a software product, where the computer software product is stored in a storage medium and includes one or more instructions to enable a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method of the embodiments of the present disclosure. And the aforementioned storage medium may be a non-transitory storage medium comprising: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes, and may also be a transient storage medium.
The above description and drawings sufficiently illustrate embodiments of the disclosure to enable those skilled in the art to practice them. Other embodiments may incorporate structural, logical, electrical, process, and other changes. The examples merely typify possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in or substituted for those of others. The scope of the disclosed embodiments includes the full ambit of the claims, as well as all available equivalents of the claims. As used in this application, although the terms "first," "second," etc. may be used in this application to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. For example, a first element could be termed a second element, and, similarly, a second element could be termed a first element, unless the meaning of the description changes, so long as all occurrences of the "first element" are renamed consistently and all occurrences of the "second element" are renamed consistently. The first and second elements are both elements, but may not be the same element. Furthermore, the words used in the specification are words of description only and are not intended to limit the claims. As used in the description of the embodiments and the claims, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. Similarly, the term "and/or" as used in this application is meant to encompass any and all possible combinations of one or more of the associated listed. Furthermore, the terms "comprises" and/or "comprising," when used in this application, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. Without further limitation, an element defined by the phrase "comprising an …" does not exclude the presence of other like elements in a process, method or apparatus that comprises the element. In this document, each embodiment may be described with emphasis on differences from other embodiments, and the same and similar parts between the respective embodiments may be referred to each other. For methods, products, etc. of the embodiment disclosures, reference may be made to the description of the method section for relevance if it corresponds to the method section of the embodiment disclosure.
Those of skill in the art would appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software may depend upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the disclosed embodiments. It can be clearly understood by the skilled person that, for convenience and brevity of description, the specific working processes of the system, the apparatus and the unit described above may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the embodiments disclosed herein, the disclosed methods, products (including but not limited to devices, apparatuses, etc.) may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units may be merely a logical division, and in actual implementation, there may be another division, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form. The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to implement the present embodiment. In addition, functional units in the embodiments of the present disclosure may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.
The flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to embodiments of the present disclosure. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). In some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. In the description corresponding to the flowcharts and block diagrams in the figures, operations or steps corresponding to different blocks may also occur in different orders than disclosed in the description, and sometimes there is no specific order between the different operations or steps. For example, two sequential operations or steps may in fact be executed substantially concurrently, or they may sometimes be executed in the reverse order, depending upon the functionality involved. Each block of the block diagrams and/or flowchart illustrations, and combinations of blocks in the block diagrams and/or flowchart illustrations, can be implemented by special purpose hardware-based systems that perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
The terms "upper", "lower", "inner", "outer", and the like herein indicate orientations or positional relationships based on those shown in the drawings, and are used for convenience in describing and simplifying the description, but do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention. In the description herein, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may include, for example, mechanical or electrical connections, communications between two elements, direct connections, and indirect connections via intermediary media, where the specific meaning of the terms is understood by those skilled in the art as appropriate. Herein, the term "and/or" is an associative relationship describing objects, meaning that three relationships may exist. For example, a and/or B, represents: a or B, or A and B.
Claims (10)
1. A method for controlling a direct current range hood, the direct current range hood comprising: the collection smoke chamber, with the fan of collection smoke chamber intercommunication to and set up in the outside cigarette chamber that holds together of collection smoke chamber, hold together the cigarette chamber liftable, its characterized in that, the method includes:
determining the variation amplitude of the oil smoke concentration;
when the change amplitude of the oil smoke concentration is larger than or equal to the threshold value, the height of the smoke collecting cavity is adjusted, and/or the rotating speed of the fan is adjusted.
2. The method of claim 1,
when the increase value of the oil smoke concentration is larger than or equal to the first threshold value, adjusting the height of the smoke collecting cavity and/or adjusting the rotating speed of the fan;
and when the reduction value of the oil smoke concentration is greater than or equal to the second threshold value, adjusting the height of the smoke collecting cavity, or adjusting the rotating speed of the fan.
3. The method of claim 2, wherein when the increase in soot concentration is greater than or equal to a first threshold:
if the increased oil smoke concentration is greater than or equal to the preset concentration, adjusting the rotating speed of the fan in a first mode, and adjusting the height of the smoke collecting cavity in a second mode;
and if the increased oil smoke concentration is less than the preset concentration, adjusting the rotating speed of the fan in a third mode or adjusting the height of the smoke collecting cavity in a fourth mode according to the current height of the smoke collecting cavity.
4. The method of claim 3,
when the height of the current smoke collecting cavity is smaller than or equal to the first height, the rotating speed of the fan is adjusted in a third mode; or the like, or, alternatively,
when the height of the current cigarette holding cavity is larger than the first height, the height of the cigarette holding cavity is adjusted in a fourth mode.
5. The method of claim 3, wherein the third manner is to increase the rotational speed of the fan.
6. A method according to claim 3, wherein the fourth way is to reduce the height of the smoke-collecting chamber.
7. A method according to any of claims 3 to 6, wherein the first way is to adjust the rotational speed of the fan to a maximum rotational speed.
8. A method according to any one of claims 3 to 6, wherein the second means is to adjust the height of the smoke-holding chamber to a minimum height.
9. The method according to any one of claims 2 to 6, characterized in that, when the reduction value of the soot concentration is greater than or equal to a second threshold value:
if the height of the current cigarette collecting cavity is smaller than the preset height, the height of the cigarette collecting cavity is increased;
and if the height of the current cigarette gathering cavity is greater than or equal to the preset height, reducing the rotating speed of the fan.
10. An apparatus for controlling a direct current range hood, comprising a processor and a memory having stored program instructions, characterized in that the processor is configured to perform the method of any of claims 1 to 9 when executing the program instructions.
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| CN112747349B (en) | 2022-12-20 |
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