CN111227671A

CN111227671A - Steam control method of food processor and food processor

Info

Publication number: CN111227671A
Application number: CN202010221958.9A
Authority: CN
Inventors: 王旭宁; 胡望伟; 毛树海; 林小财
Original assignee: Joyoung Co Ltd
Current assignee: Joyoung Co Ltd
Priority date: 2020-03-26
Filing date: 2020-03-26
Publication date: 2020-06-05

Abstract

The invention discloses a steam control method of a food processor and the food processor, the food processor comprises a boiler, a steam outlet channel with a steam outlet, a cavity, a heating pipe and a fan, the steam generated by the boiler flows to the cavity through the steam outlet channel, the method comprises the following steps: detecting a processing mode of the food processor; when the processing mode is the steaming function mode, in the final steam exhaust stage of the steaming function mode, the steam output is stopped, and the fan is started to exhaust steam so as to reduce the steam amount in the cavity. The steam control method of the food processor and the food processor can reduce water accumulation in the cavity and reduce influence on the experience of condensed water dropping on food.

Description

Steam control method of food processor and food processor

Technical Field

The invention relates to the field of kitchen appliances, in particular to a steam control method of a food processor and the food processor.

Background

At present, most food processors including steam air fryer and the like have a steaming function mode, wherein the steaming function mode refers to that the food processor can generate steam during processing.

However, food preparation machine evaporates the functional mode in the use area, and first area evaporates functional mode in the cavity have steam and temperature higher for the user is scalded by the steam when uncapping very easily, and when normal use, need cool off the product earlier, just can normally open with the operation, corresponding extension process time, and, after the product cooling, eat the material and also can cool off, influence the taste of eating the material of processing. Secondly, when the steam-carrying function is used, because the hot steam rises, the water vapor can be continuously gathered in the upper space, and although the exhaust channel is arranged, all the rising water vapor can not be discharged. Especially, in the pure steaming mode, the steam volume is very big, and a large amount of steam can condense on the structure of upper space, forms the drop of water and drips on food to the greasy dirt on the structure is being adulterated, and the drop of water drips on food and leads to food preparation effect poor, can lead to the bottom of a boiler ponding too much to flood food even, influences user experience.

Disclosure of Invention

In a first aspect, the present application provides a steam control method for a food processor, the food processor comprising a boiler, a steam outlet channel provided with a steam outlet, a cavity, a heating pipe and a fan, steam generated by the boiler flowing through the steam outlet channel to the cavity, the method comprising:

detecting a processing mode of the food processor;

and when the processing mode is the steaming functional mode, stopping steam output and starting the fan to exhaust steam in the final steam exhaust stage of the steaming functional mode so as to reduce the steam amount in the cavity.

Optionally, when the processing mode is a steaming function mode, the method further includes:

before the final steam discharging stage of the steaming function mode, judging the specific mode of the steaming function mode, such as a pure steaming function mode, a steaming and baking function mode or a pure steaming mode at 110 ℃;

and controlling the fan to exhaust steam at full power or preset power according to the judgment result, wherein the preset power is less than the full power.

Optionally, the controlling the fan to exhaust steam at full power or preset power according to the determination result includes:

and when the judgment result shows that the steaming functional mode is the pure steaming functional mode, controlling the fan to exhaust steam at the preset power, and controlling the output of the steam according to the temperature change in the cavity.

and when the judgment result shows that the mode with the steaming function is the steaming and baking function mode, controlling the fan to exhaust steam at full power, and controlling the output quantity of the steam to be smaller than a preset threshold value.

and when the judgment result shows that the mode with the steam function is a pure steam mode at 110 ℃, controlling the fan to exhaust steam at the preset power, controlling the output quantity of the steam to be greater than a preset threshold value, and controlling the heating pipe to heat according to a preset frequency.

Optionally, when the heating pipe is controlled to heat according to a preset frequency, the method further includes:

and controlling the fan to exhaust steam at full power within a second preset time before the heating pipe is started.

Optionally, the value range of the second preset time is 5-10S.

Optionally, the value range of the steam exhaust stage is 1-2 min, and the preset power is half power.

In a second aspect, the present application provides a food processor comprising: the steam-heating boiler comprises a boiler, a steam outlet channel provided with a steam outlet, a cavity, a heating pipe, a hot air fan for exhausting steam and a heat-radiating fan for radiating heat, wherein steam generated by the boiler flows to the cavity through the steam outlet channel;

the food processor further comprises a main control chip for performing the steam control method of the food processor according to any of the embodiments of the first aspect;

the food processor further comprises: and the control circuit is used for controlling the hot air fan to exhaust steam at half power or full power.

Optionally, the control circuit includes two driving circuits, wherein an output end of one of the driving circuits is connected in series with the first diode and then connected to a driving end of the fan, so as to drive the hot air fan to exhaust steam at half power; the output end of the other driving circuit is directly connected to the driving end of the fan and used for driving the hot air fan to exhaust steam at full power, wherein:

each of the drive circuits includes: the collector C pole of the triode is communicated with the anode of the diode, the cathode of the diode is communicated with the input end of the relay, and the output end of the relay is communicated with the driving end of the fan.

Compared with the prior art, the steam control method of the food processor and the food processor provided by at least one embodiment of the application have the following beneficial effects: through the processing mode that detects food preparation machine, when using the area to evaporate the function, set up the steam extraction stage in (1 ~ 2min) the preset time before the work is ended, open hot-blast fan at the steam extraction stage to quick steam extraction reduces the steam volume in the cavity, reduces the steam scald risk of uncapping.

In some embodiments of the present application, when the processing mode is the steaming function mode, the following effects can also be achieved:

1. for traditional air fryer, this application has further increased the steam module for the product still has the function of evaporating outside the function of barbecue, still can with barbecue looks structure, realize the multiple function of drying by fire and evaporating and combining together. The steam function is judged by detection, the steam output is stopped firstly, then the fan is started to exhaust, the steam in the cavity is actively and quickly exhausted, the steam does not need to be naturally cooled and condensed, and the processing and waiting time of the product is greatly shortened. Through the specific mode of judging the area and evaporating the function mode, for example further judge that it is the pure mode of evaporating function, evaporate roast function mode or 110 ℃ pure mode of evaporating to control hot-blast fan and carry out the steam extraction with full power or predetermineeing power, half power or full power open hot-blast fan will be favorable to steam at cavity inner loop, reduce steam and gather at the inner chamber top, thereby reduce steam and condense, reduce the cavity ponding, reduce the condensate water and drip and influence on food and experience.

2. During the working process of the pure steaming functional mode, the hot air fan is started at half power, a certain amount of pressure is added in the cavity, steam is discharged, and firstly, water accumulation in the cavity can be reduced, and food is prevented from being submerged; secondly, the higher heat of the cavity can be maintained, and the cooking speed of food is accelerated.

3. In the functional mode working process of steaming and baking, the hot air fan is started at full power, steam can be continuously conveyed to food after being heated by the heating pipe, a heating circulation channel of the steam is provided, the uniformity of the temperature of the cavity is guaranteed, the food heating and cooking speed is facilitated, the circulation of high-temperature steam can be promoted, and the food is more cooked.

4. In the working process of the pure steaming mode at 110 ℃, the hot air fan is started at full power, so that high-temperature steam circulation can be promoted, and food is easier to cook. And secondly, the high-temperature steam can expel excessive oil in the food, so that the freshness of the food is kept, and the absorption of calories is reduced. Thirdly, high-temperature steam is easier to penetrate through food, the nutrition of the food is kept, and the taste of the food is improved.

5. In the 110 ℃ pure steam functional mode, the full-power hot air fan is started to exhaust steam before the heating pipe is started, so that the risk of elastic cover can be reduced, and the service life of the machine is ensured.

In some embodiments of the present application, the following effects can also be achieved:

1. be provided with radiator fan in the aircraft nose upper cover space, establish the wind channel through radiator fan, give aircraft nose upper cover space in the circuit control panel radiating while, can prevent that steam from wafting to the top circuit control panel when revealing, reduce circuit control panel and advance steam risk, increase machine reliability.

2. Through the control circuit that the relay constitutes, can realize hot-blast fan half power or full power output exhaust, make food preparation machine's steam discharge diversified.

Additional features and advantages of the application will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the application. Other advantages of the present application may be realized and attained by the instrumentalities and combinations particularly pointed out in the specification and the drawings.

Drawings

The accompanying drawings are included to provide an understanding of the present disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the examples serve to explain the principles of the disclosure and not to limit the disclosure.

FIG. 1 is a schematic structural diagram of a clamshell type food processor according to an embodiment of the present invention;

FIG. 2 is a cross-sectional view of FIG. 1;

FIG. 3 is a schematic flow diagram of steam provided by the first embodiment of the present invention;

FIG. 4 is a schematic flow diagram of steam provided by the second embodiment of the present invention;

FIG. 5 is a flowchart of a steam control method of a food processor according to an embodiment of the present invention;

FIG. 6 is a flowchart illustrating a steam control method of a food processor according to a second embodiment of the present invention;

fig. 7 is a schematic structural diagram of a control circuit according to an embodiment of the present invention.

Detailed Description

The present application describes embodiments, but the description is illustrative rather than limiting and it will be apparent to those of ordinary skill in the art that many more embodiments and implementations are possible within the scope of the embodiments described herein. Although many possible combinations of features are shown in the drawings and discussed in the detailed description, many other combinations of the disclosed features are possible. Any feature or element of any embodiment may be used in combination with or instead of any other feature or element in any other embodiment, unless expressly limited otherwise.

The present application includes and contemplates combinations of features and elements known to those of ordinary skill in the art. The embodiments, features and elements disclosed in this application may also be combined with any conventional features or elements to form a unique inventive concept as defined by the claims. Any feature or element of any embodiment may also be combined with features or elements from other inventive aspects to form yet another unique inventive aspect, as defined by the claims. Thus, it should be understood that any of the features shown and/or discussed in this application may be implemented alone or in any suitable combination. Accordingly, the embodiments are not limited except as by the appended claims and their equivalents. Furthermore, various modifications and changes may be made within the scope of the appended claims.

Further, in describing representative embodiments, the specification may have presented the method and/or process as a particular sequence of steps. However, to the extent that the method or process does not rely on the particular order of steps set forth herein, the method or process should not be limited to the particular sequence of steps described. Other orders of steps are possible as will be understood by those of ordinary skill in the art. Therefore, the particular order of the steps set forth in the specification should not be construed as limitations on the claims. Further, the claims directed to the method and/or process should not be limited to the performance of their steps in the order written, and one skilled in the art can readily appreciate that the sequences may be varied and still remain within the spirit and scope of the embodiments of the present application.

An embodiment of the present invention provides a food processor, fig. 1 is a schematic structural diagram of a flip-type food processor according to an embodiment of the present invention, fig. 2 is a cross-sectional view of fig. 1, as shown in fig. 1 and fig. 2, the food processor according to an embodiment of the present invention may include: the steam-water heater comprises a boiler, a steam outlet channel 1 provided with a steam outlet, a cavity 2, a heating pipe 3 and a hot air fan 4 for exhausting steam.

In this embodiment, steam generated by the boiler flows to the cavity 2 through the steam outlet channel 1, specifically, fig. 3 is a schematic flow diagram of the steam provided in the first embodiment of the present invention, as shown in fig. 3, steam outlets (not shown) may be distributed around the steam outlet channel 1, the steam is heated by a bottom boiler (not shown in the figure) to generate water steam, and the steam is sprayed to the periphery of the cavity 2 through the steam outlet channel 1. When the hot air fan is turned on, the air duct draws air from both sides of the cavity 2 and blows out air from the middle of the cavity 2 as shown in fig. 3.

Further, in practical applications, the circuit control board of the flip-type food processor is generally set in the cavity of the upper cover of the handpiece, and due to long-time work or aging of the machine, the sealing performance is not enough, so that when the food processor with a steaming function is used, water vapor is likely to rise, water is condensed on the circuit control board, and the circuit control board is short-circuited.

To solve the above problem, as shown in fig. 2, the food processor provided in this embodiment may further include: the heat radiation fan can be arranged in the circuit control panel space of the upper cover of the handpiece. Specifically, fig. 4 is a schematic flow diagram of steam provided in the second embodiment of the present invention, and as shown in fig. 4, a heat dissipation fan 10 is added in a space of the circuit control board of the handpiece upper cover 12 to create an air duct for discharging steam leaked to the circuit control board of the handpiece upper cover 12, and at the same time, provide a heat dissipation effect for the circuit control board of the handpiece upper cover 12. The food processor that this embodiment provided is provided with radiator fan in the aircraft nose upper cover space, establishes the wind channel through radiator fan, gives the aircraft nose upper cover in-space circuit control panel radiating the time, if have steam to leak to top circuit control panel space when evaporating the function, can effectively get rid of steam. And steam can be prevented from floating to the top circuit control board when being leaked, the risk of water vapor entering the circuit control board is reduced, and the reliability of the machine is improved.

As shown in fig. 1-4, the food processor provided in this embodiment may include a machine head 11 and a machine head upper cover 12, a control board may be disposed in the machine head upper cover 12, and the control board is provided with a heating pipe 3, a hot air fan 4, a display board 5 and a motor 6, and optionally, the machine head upper cover 12 may further include a steam exhaust hole 7, a steam exhaust pipe 8 and a steam exhaust port 9.

In this embodiment, the food processor may further include a main control chip, and the main control chip is used to execute the steam control method of the food processor provided by the present invention, and the specific execution process of the main control chip can be seen in the following embodiments. Optionally, the main control chip may be a single chip microcomputer (MCU for short).

Based on the food processor shown in fig. 1-4, an embodiment of the present invention further provides a steam control method of a food processor, fig. 5 is a flowchart of a steam control method of a food processor according to an embodiment of the present invention, and as shown in fig. 5, an execution main body of the steam control method of a food processor according to an embodiment of the present invention may be a main control chip, and specific steps thereof may include:

s501: a processing mode of the food processor is detected.

In this embodiment, when the food processor is operating, the processing mode of the food processor is detected to determine whether the food processor is in the steaming mode.

The steaming function mode can comprise a pure steaming function mode, a steaming and baking function mode and a 110 ℃ pure steaming mode. In the pure steam function mode, only steam is discharged from the boiler, and the heating pipe is not heated. When in the steaming and baking functional mode, the heating pipe carries out temperature control heating according to the set temperature, and the boiler discharges a small amount of steam. When the pure steam mode is at 110 ℃, a large amount of steam is output by the full power of the boiler, and the heating pipe heats at a certain frequency to increase the steam temperature.

Wherein, food processor can be including having the air that evaporates the function and frying pan, electric rice cooker and broken wall cooking machine etc. in this embodiment.

S502: when the processing mode is the steaming function mode, in the final steam exhaust stage of the steaming function mode, the steam output is stopped, and the fan is started to exhaust steam so as to reduce the steam amount in the cavity.

Optionally, the value range of the steam exhaust stage may be, but is not limited to, 1-2 min, and the specific value of the steam exhaust stage may be preset according to practical application or experience of a person skilled in the art.

In practical application, when the food processor uses the belt steaming function, steam can be generated in the cavity, the temperature is high, and the flip structure is very easy to be scalded by the steam when the cover is opened.

In order to solve the above problems, in this embodiment, when the processing mode of the food processor is the steaming mode, the steam output is stopped during the last 1-2 min of the steaming mode, the hot air fan is turned on to exhaust steam, so as to reduce the amount of steam in the cavity, thereby effectively preventing the risk that the user is scalded due to the steam escaping when the flip-type food processor is opened.

When the fan is started to exhaust steam, the fan can be controlled to exhaust steam at high power, and the power value of the high power is 90% -100% of the full power. Optionally, the fan may be controlled to exhaust steam at full power to accelerate evaporation of the amount of steam in the cavity.

According to the steam control method of the food processor, provided by the embodiment of the invention, by detecting the processing mode of the food processor, when the food processor with the steam function is used, the full-power output of the hot air fan is utilized within the preset time (1-2 min) before the work is finished, the steam is quickly exhausted, the steam amount in the cavity is reduced, and the risk of scalding caused by steam when the cover is opened is reduced.

Further, in the above embodiment, when the processing mode is the mode with steaming function, the steam control method of the food processor according to the embodiment of the present invention may further include:

before the final steam exhaust stage of the steaming functional mode, determining whether the steaming functional mode is a pure steaming functional mode, a steaming and baking functional mode or a pure steaming mode at 110 ℃; and controlling the fan to exhaust steam at full power or preset power according to the judgment result, wherein the preset power is less than the full power.

In practical applications, when the food processor is used with a steaming function, the hot steam rises and the water vapor is continuously collected in the upper space, and the rising water vapor cannot be exhausted though the exhaust passage is provided. Especially, in the pure steaming mode, the steam volume is very big, and a large amount of steam can condense on the structure of upper space, forms the drop of water and drips on food to the greasy dirt on the structure is being adulterated, and the drop of water drips on food and leads to food preparation effect poor, can lead to the bottom of a boiler ponding too much to flood food even, influences user experience.

In order to solve the above problems, in this embodiment, when the food processing machine is in the steaming function mode, in the working process of the food processing machine, according to the specific function of the steaming function mode, that is, by determining whether the steaming function mode is the pure steaming function mode, the steaming and baking function mode or the pure steaming mode at 110 ℃, the hot air fan is controlled to exhaust steam at full power or preset power, and the hot air fan is turned on at half power or full power, so that steam is favorably circulated in the cavity, the accumulation of the steam at the top of the inner cavity is reduced, the condensation of the steam is reduced, the accumulated water in the cavity is reduced, and the influence of the condensed water dropping on the food on the experience is reduced.

Wherein the preset power may be half power, i.e. half the full power of the food processor.

Specifically, controlling the fan to exhaust steam at full power or preset power according to the determination result may include the following three implementation manners:

the first implementation mode comprises the following steps: and when the judgment result shows that the steaming functional mode is the pure steaming functional mode, controlling the fan to exhaust steam at preset power, and controlling the output of the steam according to the temperature change in the cavity.

In practical application, when the food processor is in a pure steaming functional mode, firstly, the steam outlet is large, the steam outlet is small, a large amount of steam is condensed into water in the cavity, and food can be submerged by excessive accumulated water. Secondly, in the pure steaming function (heating without a heating pipe), after steam generated by heating water in the boiler enters the cavity, the steam has no place to absorb energy (except absorbing heat from newly sprayed steam), namely the 'old steam' staying in the cavity continuously absorbs the energy of the 'new steam' to achieve heat balance, so that if a large amount of 'old steam' remains in the cavity, the heat in the inner cavity can be reduced, and the food is not ripe.

In order to solve the above problems, in the embodiment, during the operation in the pure steam function mode, the boiler continuously outputs steam, and simultaneously, the hot air fan is turned on at half power, the hot air fan operates at a low rotation speed, a certain amount of pressure is added in the cavity, so that steam exhaust is facilitated, and firstly, the water vapor condensation can be reduced, so that accumulated water is reduced; secondly, the 'old steam' can be prevented from gathering on the top of the cavity and continuously absorbing heat.

According to the steam control method of the food processor provided by the embodiment of the invention, in the working process of the pure steaming function mode, the hot air fan is started at half power, a certain amount of pressure is added in the cavity, steam is discharged, and firstly, water accumulation in the cavity can be reduced, and food is prevented from being flooded; secondly, the higher heat of the cavity can be maintained, and the cooking speed of food is accelerated.

The second implementation mode comprises the following steps: and when the judgment result shows that the mode with the steam function is the steaming and baking function mode, controlling the fan to exhaust steam at full power, and controlling the output quantity of the steam to be smaller than a preset threshold value.

In practical application, when the food processor is in a steaming and baking functional mode, after steam generated by heating water in the boiler enters the cavity, the steam has no place to absorb energy (except for absorbing heat from newly sprayed steam), that is, the 'old steam' staying in the cavity continuously absorbs the energy of the 'new steam' to reach heat balance, so that if a large amount of 'old steam' remains in the cavity, the heat in the cavity can be reduced, and the food processor is not beneficial to the maturity.

In order to solve the above problems, in this embodiment, in the working process of the steaming and baking function mode, when the boiler discharges a small amount of steam, the hot air fan is turned on at full power, and the hot air fan operates at a high rotation speed, so that the steam can be continuously conveyed to food after being heated by the heating pipe, a heating circulation channel of the steam is provided, the uniformity of the temperature of the cavity is ensured, and the heating and cooking speed of the food is facilitated.

According to the steam control method of the food processor provided by the embodiment of the invention, in the working process of the steaming and baking function mode, the hot air fan is started at full power, steam can be continuously conveyed to food after being heated by the heating pipe, a heating circulation channel of the steam is provided, the uniformity of the temperature of the cavity is ensured, the food heating and cooking speed is facilitated, the high-temperature steam circulation can be promoted, and the food is easier to cook.

The third implementation mode comprises the following steps: and when the judgment result shows that the mode with the steam function is the pure steam mode at 110 ℃, controlling the fan to exhaust steam at preset power, controlling the output quantity of the steam to be greater than a preset threshold value, and controlling the heating pipe to heat according to preset frequency.

In practical application, when the food processor is in a pure steaming mode at 110 ℃, after steam generated by heating water in the boiler enters the cavity, the steam has no place to absorb energy (except for absorbing heat from newly sprayed steam), that is, the 'old steam' staying in the cavity continuously absorbs the energy of the 'new steam' to reach heat balance, so that if a large amount of 'old steam' remains in the cavity, the heat in the cavity can be reduced, and the food is not beneficial to maturity.

In order to solve the above problems, in this embodiment, in the working process of the pure steam mode at 110 ℃, while the boiler continuously produces steam, the hot air fan is turned on at half power, and the hot air fan works at a low rotation speed, so that firstly, the steam can be continuously conveyed to food after being heated by the heating pipe, a heating circulation channel of the steam is provided, the uniformity of the temperature of the cavity is ensured, the food heating and cooking speed is facilitated, the circulation of the high-temperature steam can be promoted, and the food is more cooked. And secondly, the high-temperature steam can expel excessive oil in the food, so that the freshness of the food is kept, and the absorption of calories is reduced. Thirdly, high-temperature steam is easier to penetrate through food, the nutrition of the food is kept, and the taste of the food is improved.

Optionally, when the heating pipe is controlled to heat according to the preset frequency, the method may further include: and controlling the fan to exhaust steam at full power within a second preset time before the heating pipe is started.

And the value range of the second preset time is 5-10S.

In practical application, food preparation machine 110 ℃ pure steaming mode, a large amount of steam that goes out promptly to open heating pipe (for example halogen tube) at the course of the work intermittent type, promote the steam temperature in the cavity, when being full of steam in the cavity, if open the heating pipe, because heating pipe heating efficiency is very high, pressure can rise in the twinkling of an eye in the cavity, if close lid buckle not hard up this moment can cause the bullet lid phenomenon, and the long-time reduction machine life that the action of pressure boost in twinkling of an eye can be very big in the cavity.

In this embodiment, during the operation process in the pure steam mode at 110 ℃, the heating pipe can be controlled to heat at a preset frequency. And in 5-10S before the heating pipe is opened, the hot air fan outputs exhaust steam at full power, the steam quantity in the cavity is reduced, the pressure in the cavity is reduced, and the elastic cover caused by overlarge pressure in the cavity at the moment of opening the heating pipe is avoided.

In the embodiment, when the heating pipe is heated according to the preset frequency, the hot air fan continues to output and exhaust steam according to half power after the heating of the heating pipe is stopped, so that firstly, the water accumulation in the cavity can be reduced, and the food can be prevented from being flooded; secondly, the higher heat of the cavity can be maintained, and the cooking speed of food is accelerated.

According to the steam control method of the food processor provided by the embodiment of the invention, the hot air fan is started at full power in the working process of the pure steaming mode at 110 ℃, so that high-temperature steam circulation can be promoted, and food is easier to cook. And secondly, the high-temperature steam can expel excessive oil in the food, so that the freshness of the food is kept, and the absorption of calories is reduced. Thirdly, high-temperature steam is easier to penetrate through food, the nutrition of the food is kept, and the taste of the food is improved.

In addition, in the 110 ℃ pure steam function mode, the full-power hot air fan is started to exhaust steam before the heating pipe is started, so that the risk of elastic cover can be reduced, and the service life of the machine is ensured.

For example, in this embodiment, taking the food processor as a steam-air fryer, the value of the steam discharging stage is 2min, and the value of the second preset time is 10S as an example, specifically, fig. 6 is a flowchart of a steam control method of the food processor provided in the second embodiment of the present invention, as shown in fig. 6, which may specifically include:

s601: a processing mode of the food processor is detected. Executing S602 when the processing mode is a pure steaming functional mode; executing S605 when the processing mode is a steaming and baking functional mode; when the processing mode is the pure steam mode at 110 ℃, S607 is executed.

S602: judge whether last 2 min. If yes, executing S603; otherwise, S604 is performed.

S603: and stopping steam output, and exhausting steam by the full-power working of the hot air fan.

In the embodiment, the steam output is stopped 1-2 min before the pure steam functional mode is finished, the hot air fan is in full power output, namely, the hot air fan works at a high rotating speed, so that steam is quickly exhausted, the steam quantity in the cavity is reduced, and the risk of scalding a user after the cover is opened is reduced.

S604: the hot air fan outputs half power, and the steam is output along with the temperature change of the cavity.

In the embodiment, in the working process of the pure steaming function mode, the boiler continuously outputs steam, and the hot air fan works at half power output, namely low rotating speed, so that the accumulated water in the cavity can be reduced, and food can be prevented from being submerged; secondly, the higher heat of the cavity can be maintained, and the cooking speed of food is accelerated.

S605: judge whether last 2 min. If yes, executing S603; otherwise, S606 is performed.

In this embodiment, steam output is stopped 1-2 min before the operation of the steaming and baking functional mode is finished, and the hot air fan continues to output full power, namely, work at a high rotating speed, so as to exhaust steam quickly, reduce the amount of steam in the cavity, and reduce the risk of scalding users after the cover is opened.

S606: the hot air fan outputs full power, and a small amount of steam is always discharged from the boiler.

In this embodiment, in the functional mode working process of steaming and baking, hot-blast fan is always according to full power output, high rotational speed work promptly, and the boiler goes out steam a small amount, can promote high-temperature steam circulation, makes food more ripe.

S607: judge whether last 2 min. If yes, executing S603; otherwise, S608 is performed.

In the embodiment, the steam output is stopped 1-2 min before the 110 ℃ pure steam mode is finished, and the hot air fan is in full power output, namely, works at a high rotating speed, so that steam is quickly exhausted, the steam quantity in the cavity is reduced, and the risk of scalding a user after the cover is opened is reduced.

S608: the heating pipe heats according to a certain frequency, and the boiler always produces a large amount of steam.

S609: and judging whether the heating pipe is opened for 10 s. If yes, go to S610; otherwise, S611 is performed.

S610: the hot air fan outputs full power to reduce the steam pressure.

In this embodiment, when the heating pipe is operated in the pure steam mode at 110 ℃, the hot air fan discharges steam at full power 5-10S before the heating pipe is opened, so that the steam amount in the cavity is reduced, the pressure in the cavity is reduced, and the elastic cover caused by overlarge pressure in the cavity at the moment of opening the heating pipe is avoided.

When the heating pipe is heated according to the preset frequency, after the heating of the heating pipe is stopped, the hot air fan continues to output and exhaust steam according to half power, so that the accumulated water in the cavity can be reduced, and food can be prevented from being submerged; secondly, the higher heat of the cavity can be maintained, and the cooking speed of food is accelerated.

S611: and (4) outputting the half power of the hot air fan.

In this embodiment, in the pure mode working process that evaporates of 110 ℃, the boiler is when constantly giving out steam, and hot-blast fan is according to half power output, low rotational speed work promptly to quick steam extraction reduces the steam volume in the cavity, reduces and finishes uncapping scald user's risk.

The steam control method of the food processor provided by the embodiment of the invention has the following beneficial effects: 1. can prevent the scald caused by the water vapor when the cover is opened. 2. The water accumulation of the cavity can be reduced. 3. The risk of the influence on the cooking effect of the food caused by the condensation and dripping of the water vapor can be reduced. 4. The influence of instant pressurization on the service life of the machine when the heating pipe is started in a pure steaming mode at 110 ℃ can be prevented. 5. The risk of the circuit control board entering water vapor is reduced.

Further, in the above embodiment, the hot air fan can exhaust steam at half power or full power by the following two implementation manners:

the first implementation mode comprises the following steps: the food processor provided by the embodiment of the invention can also comprise: and the control circuit can be used for controlling the hot air fan to exhaust steam at half power or full power.

Specifically, fig. 7 is a schematic structural diagram of a control circuit according to an embodiment of the present invention, as shown IN fig. 7, the control circuit may include two driving circuits, where an output end of one of the driving circuits is connected IN series with a first diode (D2 IN fig. 7) and then connected to a driving end ACL _ IN of the fan, so as to drive the hot air fan to exhaust steam at half power; the output end of the other driving circuit is directly connected to the driving end ACL _ IN of the fan and used for driving the hot air fan to exhaust steam at full power, wherein:

each of the drive circuits includes: the fan comprises a relay (JD 1 or JD2 in FIG. 7), a second diode (D1 or D3 in FIG. 7) and a triode (Q1 or Q2 in FIG. 7), wherein the collector C pole of the triode is communicated with the anode of the diode, the cathode of the diode is communicated with the input end of the relay, and the outlet end of the relay is communicated with the driving end of the fan.

In this embodiment, taking a fan as an example of a hot air fan, as shown in fig. 7, a control circuit of the hot air fan may be composed of two driving circuits JD1 and JD2, where one driving circuit (for example, JD1) controls full power output and one driving circuit (for example, JD2) controls half power output.

As shown in fig. 7, R1 and R3 are current limiting resistors that provide base currents for transistors Q1 and Q2, respectively. R2 and R4 are base pull-down resistors for preventing the relay from being started by mistake. D1 and D3 are free wheel diodes to prevent the reverse electromotive force from breaking through the triode when the relay is closed.

In this embodiment, the principle that JD1 controls the full power output of the hot air fan is as follows: when the hot air FAN needs to be started at full power, the P _ FAN port can be gated through the main control chip, the P _ FAN _ HALF port is closed, the relay JD1 is used for suction, and the hot air FAN outputs at full power.

In this embodiment, the principle that JD2 controls half power output of the hot air fan is as follows: when the FAN needs to be started at HALF power, the P _ FAN _ HALF port can be gated through the main control chip, the P _ FAN port is closed, the relay JD2 is used for attracting, and due to the unidirectional conduction effect of the D2, the load only has HALF-wave output power, so that HALF-power output of the hot air FAN is achieved.

Wherein CN1 in fig. 7 denotes a connector, such as a socket.

In the embodiment, the control circuit formed by the relay can realize half-power or full-power output steam discharge of the hot air fan, so that the steam discharge of the food processor is diversified.

The second implementation mode comprises the following steps: the mode of intermittently starting the hot air fan is adopted to realize that the fan exhausts steam at full power or preset power, and the preset power is less than the full power.

In this embodiment, when the power of the hot air fan is not adjustable and only full power is output, the hot air fan can be intermittently turned on by the main control chip in order to achieve the purpose of turning on the hot air fan at low power in the working process.

In the embodiment, the mode of intermittently starting the hot air fan is adopted to realize that the fan exhausts steam at full power or preset power, a circuit of a half-power relay or a silicon-controlled circuit is not needed, and the cost is low.

It will be understood by those of ordinary skill in the art that all or some of the steps of the methods, systems, functional modules/units in the devices disclosed above may be implemented as software, firmware, hardware, and suitable combinations thereof. In a hardware implementation, the division between functional modules/units mentioned in the above description does not necessarily correspond to the division of physical components; for example, one physical component may have multiple functions, or one function or step may be performed by several physical components in cooperation. Some or all of the components may be implemented as software executed by a processor, such as a digital signal processor or microprocessor, or as hardware, or as an integrated circuit, such as an application specific integrated circuit. Such software may be distributed on computer readable media, which may include computer storage media (or non-transitory media) and communication media (or transitory media). The term computer storage media includes volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data, as is well known to those of ordinary skill in the art. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, Digital Versatile Disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other medium which can be used to store the desired information and which can accessed by a computer. In addition, communication media typically embodies computer readable instructions, data structures, program modules or other data in a modulated data signal such as a carrier wave or other transport mechanism and includes any information delivery media as known to those skilled in the art.

Claims

1. A steam control method for a food processor, the food processor comprising a boiler, a steam outlet channel provided with a steam outlet, a cavity, a heating pipe and a fan, steam generated by the boiler flowing through the steam outlet channel to the cavity, the method comprising:

detecting a processing mode of the food processor;

2. The method of claim 1, wherein when the processing mode is a steaming function mode, the method further comprises:

before the final steam discharging stage of the steaming functional mode, judging the specific mode of the steaming functional mode;

3. The method according to claim 2, wherein the controlling the fan to exhaust steam at full power or preset power according to the determination result comprises:

4. The method according to claim 2, wherein the controlling the fan to exhaust steam at full power or preset power according to the determination result comprises:

5. The method according to claim 2, wherein the controlling the fan to exhaust steam at full power or preset power according to the determination result comprises:

6. The method of claim 5, wherein when the heating tube is controlled to heat at a predetermined frequency, the method further comprises:

7. The method according to claim 6, wherein the second preset time is 5-10S.

8. The method according to any one of claims 2 to 7, wherein the time of the steam discharging stage is in the range of 1-2 min, and the preset power is half power.

9. A food processor, comprising: the steam-heating boiler comprises a boiler, a steam outlet channel provided with a steam outlet, a cavity, a heating pipe, a hot air fan for exhausting steam and a heat-radiating fan for radiating heat, wherein steam generated by the boiler flows to the cavity through the steam outlet channel;

the food processor further comprising a master control chip for performing the steam control method of the food processor of any of claims 1-8;

10. The food processor of claim 9, wherein the control circuit includes two drive circuits, wherein one of the drive circuits has an output connected in series with a first diode to the drive of the fan for driving the hot air fan to discharge steam at half power; the output end of the other driving circuit is directly connected to the driving end of the fan and used for driving the hot air fan to exhaust steam at full power, wherein: