CN114504246A

CN114504246A - Air pump control method of food processing machine for extraction

Info

Publication number: CN114504246A
Application number: CN202210308783.4A
Authority: CN
Inventors: 朱泽春; 杜春年; 王宁
Original assignee: Hangzhou Joyoung Household Electrical Appliances Co Ltd
Current assignee: Hangzhou Joyoung Household Electrical Appliances Co Ltd
Priority date: 2022-03-28
Filing date: 2022-03-28
Publication date: 2022-05-17

Abstract

The application provides a food preparation machine air pump control method for extraction is applied to food extraction processing, and the food preparation machine of this application realizes through the intermittent type work of control air pump mainly, air pump control method includes: in the air inflation stage, the air pump is controlled by the control module to pump air and pressurize the outer space between the extraction cavity and the cup body, liquid is pressed downwards to form circulating water quantity, and the circulating water quantity enters the inner space from the filter holes; in the intermittent stage, the air pump is controlled to stop pumping air, air is led out through the pressure relief module, the air pressure is restored to be in a balanced state, and the circulating water quantity is guided to flow back from the inner space to the outer space under the action of the self gravity; and in the circulating process, the air pump is controlled to circulate to carry out an air charging stage and an intermittent stage, and the extraction materials in the extraction cavity are extracted in a reciprocating manner through the circulating water quantity. This application only inflates the air pump through a one-way, and the control air pump circulates in turn and carries out the pump gas and realize cold extraction, has simplified cup structure and control procedure greatly.

Description

Air pump control method of food processing machine for extraction

Technical Field

The invention relates to the technical field of food processing, in particular to an extraction method for a food processing machine.

Background

Along with the improvement of the living standard of people, tea drinks become an indispensable part in daily life gradually, and in order to improve brewing efficiency, products such as tea extraction cups gradually appear on the market.

In the prior art, in order to improve extraction efficiency, often adopt the air pump to guide rivers reciprocal in a plurality of appearance chambeies in order to reach the extraction purpose, for example, the patent that application number is 201910036675.4 discloses a method of infusing of extraction beverage, and this scheme is whole to be provided with a plurality of kettles, is provided with level sensor at the corresponding position of every kettle courage, discerns the water level state through level sensor, through controlling air pump air exhaust and inflation work in turn, drives rivers reciprocating motion between a plurality of kettles, extracts the material in infusing thing placing chamber.

Although above-mentioned scheme can realize the extraction to making the bubble thing, overall structure is relatively complicated, and the air pump need possess simultaneously and bleed and aerify two kinds of mode for the air pump is at the control procedure loaded down with trivial details under bleeding and the inflation state, need carry out the liquid exchange through a plurality of pot courage cavities, makes the complete machine volume relatively great, and the user of being not convenient for uses. In the working process, in order to prevent the air pump from sucking water into the pump in the air pumping process, a water level detection device is required to be arranged, and the application cost of the product is greatly increased.

Therefore, how to arrange a portable cup tea extraction structure and simplify the control method of air pump extraction is a difficult problem to solve urgently.

Disclosure of Invention

The invention aims to provide an extraction method for a food processor, which can realize the extraction function only by matching a single air pump and a single cup body with an extraction cavity, simplify the overall structure of the food processor, realize the extraction function of the food processor only by controlling the inflation of the air pump and have higher practicability.

The technical problem of the invention is mainly solved by the following technical scheme:

the food processor comprises a host and a cup body arranged on the host, an air pump is arranged inside the host, an extraction cavity in sealing connection is arranged at the cup mouth of the cup body, the cup body space is divided into an inner space and an outer space through the extraction cavity and is communicated through a filter hole below the extraction cavity, a pressure relief module is arranged above the outer space, a control module for controlling the air pump is arranged in the host, and the air pump control method comprises the following steps:

in the air inflation stage, the control module controls an air pump to pump air to an outer space between the extraction cavity and the cup body for pressurization, liquid is pressed downwards to form a circulating water quantity, and the circulating water quantity enters the inner space from the filtering hole;

in the intermittent stage, the air pump is controlled to stop pumping air, air is led out outwards through the pressure relief module, the air pressure is restored to be in a balanced state, and the circulating water quantity is guided to flow back from the inner space to the outer space under the action of the self gravity;

and a circulating process, wherein the air pump is controlled to circulate to carry out an inflation stage and an intermittent stage, and the extraction materials in the extraction cavity are extracted in a reciprocating manner through the circulating water quantity.

Further, the air pump control method includes:

in the inflation stage, controlling an air pump to inflate T1, inflating and pressurizing the inner space of the cup body, and guiding liquid into an extraction cavity, wherein T1 is more than or equal to 3s and less than or equal to 10 s;

and in the intermittent stage, controlling the air pump to stop inflating for T2 time, and waiting for the circulating water to flow out of the extraction chamber, wherein T1 is more than or equal to 4s and less than or equal to 10 s.

Further, the air pump control method further includes:

the working time of the inflation phase and the intermittent phase of the air pump is equal, namely T1= T2.

Further, the cyclic process comprises:

controlling the air pump to work for a period t, wherein t is more than or equal to 10min and less than or equal to 40 min;

or the inflation stage and the intermittent stage are circularly carried out for n times, wherein n is more than or equal to 30 and less than or equal to 342.

Further, before the inflation phase, the air pump control method further includes:

a water inlet stage: the water in the cup body is added to the liquid level in advance, so that the filtering holes and the extraction materials below the extraction cavity can be covered.

Further, when the inflation stage is performed, the controlling module controls the air pump to pump air further includes:

and (3) voltage stabilization: the real-time voltage of the air pump in the working process is obtained, the real-time duty ratio is adjusted through the control module, the air pump outputs at constant power in the air pumping process, and the circulating water quantity values in the extraction cavity are ensured to be approximately consistent in each circulation process.

Further, still be equipped with the driving motor through control module control on the host computer and with the stirring piece of driving motor drive connection, still include at the in-process that the air pump stopped the pump gas:

and in the stirring stage, the control module controls and drives the stirring piece to stir and mix the circulating water flowing out of the extraction cavity.

Further, the circulation process further includes:

after at least 1 aeration phase and batch phase, a corresponding 1 agitation phase will be performed.

Further, the air pump control method further includes:

the working time of the inflation phase is

The working time of the intermittent stage is

The working time of the stirring stage is

Wherein, in the step (A),

。

further, the food processor further comprises a temperature sensor, and the cycle further comprises:

and further determining the times n of the aeration stage and the intermittent stage which need to be circularly carried out by a control module according to the liquid water temperature value and/or the type of the extraction material detected by the temperature sensor.

Compared with the prior art, the beneficial effect of this application is:

1. the application provides a control method of an air pump of a food processor for extraction. In the working process, the control module controls the air pump to work, pressure change between the inner space and the outer space is adjusted, and liquid is guided to flow between the inner space and the outer space in a reciprocating mode. In the inflation stage, because the inner top of the outer space is a closed space, the gas can be gradually accumulated at the top of the outer space in the process of pumping the gas by the gas pump, and the lower pressure liquid level starts to flow to the inner space along with the increase of the gas pressure; in the intermittent stage, the control module correspondingly controls the air pump to stop pumping air, the pressure relief module gradually guides air out of the cup body, the pressure in the outer space is released to be in an atmospheric pressure stable state, and meanwhile, the liquid level falls back to be in an initial state; the control module controls the air pump to circularly carry out an inflation stage and an intermittent stage, so that the reciprocating turbulence of the liquid level is realized, and the extraction efficiency of the material in the extraction cavity is accelerated.

2. In the single circulation process of the air pump work of the food processor, the control module controls the air pump to pump air for T1, wherein T1 is more than or equal to 3s and less than or equal to 10s, if the time is less than 2s, the time is too short, the tea leaves are not completely soaked in the water, and the tea extraction effect cannot be achieved; if the time is more than 10s, the single aeration time is too long, the extraction times in unit time are too small, and the lifting times of the liquid level during tea extraction can not be ensured. The control module controls the air pump to stop pumping for T2, wherein T1 is more than or equal to 4s and less than or equal to 10s, if the time is less than 4s, the time is too short, and the next time of inflation can be started again when the tea water level can not drop completely; if the time is more than 10s, the tea water level is lowered and then kept still for a long time, and the cold tea extraction effect cannot be achieved. Furthermore, the working time of the inflation stage and the intermittent stage of the air pump is controlled to be equal, so that the uniform reciprocating motion of the circulating water quantity is ensured, and the effect of full extraction is achieved.

3. Based on the type of the material required to be extracted at present and the current water temperature, the optimal number of times of circulating extraction or the total working time of the air pump can be further determined. The tea polyphenol content and the extraction difficulty degree contained in different tea types are different, the circulation times of the aeration stage and the intermittent stage and the extraction time are controlled to ensure that the cold extraction taste can be kept optimal, and the use experience of a user is improved.

4. The extraction control method of the food processor also comprises a water inlet stage, before the food processor enters the air charging stage, the liquid level in the cup body needs to be added to be above a standard prompt value in advance, namely the water quantity needing to be added can completely cover the filtering hole below the extraction cavity and the extraction material, an accommodating space for storing air is formed by surrounding the liquid level and the outer space, and the air pump can be ensured to effectively regulate and control the liquid to flow back and forth in the working process so as to achieve the purpose of cold extraction.

5. The extraction control method of the food processor further comprises a voltage stabilization stage, when each inflation stage is carried out, the control module needs to acquire the real-time voltage of the air pump in the working process, the corresponding real-time duty ratio is adjusted through the control module, so that the air pump can output the constant power value in the process of circulating pump air every time, the circulating water value in the extraction cavity can be close to the same value in each circulation, and the problem that the circulating extraction effect is weaker and weaker due to the voltage attenuation of the air pump in the working process and the whole cold extraction efficiency is influenced is avoided.

6. Food preparation machine's extraction control method still includes the stirring stage, still be provided with driving motor on food preparation machine's the host computer and with the stirring piece of driving connection of driving motor, after the air pump stops the pump gas, along with the circulation water yield of high concentration flows outward from the inner space gradually, the corresponding control of control module stirs the piece and begins to stir for mutual solution between outside low concentration liquid and the circulation water yield, make nutrient substance such as tea polyphenol that follow the extraction material in the cup can evenly dissolve, promote user's taste.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.

FIG. 1 is a schematic diagram of a food processor for extraction according to an embodiment of the present application;

FIG. 2 is a schematic diagram illustrating steps of a method for controlling an air pump of a food processor according to an embodiment of the present application;

FIG. 3 is a schematic diagram illustrating a pressure stabilizing step of an air pump of a food processor according to an embodiment of the present application;

FIG. 4 is a schematic diagram of the step of the air pump blending stage of the food processor according to one embodiment of the present application.

Icon: 1-a main machine, 2-a cup body, 3-an air pump, 4-an extraction cavity, 5-a driving motor and 6-a stirring piece;

41-inner space, 42-outer space, 43-filter hole and 44-pressure relief module.

Detailed Description

In the description of the present application, it should be noted that the terms "inside", "outside", "left", "right", "upper", "lower", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings or orientations or positional relationships that are conventionally arranged when products of the application are used, and are used only for convenience in describing the application and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the application.

In the description of the present application, unless expressly stated or limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may for example be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements.

The technical solution of the present application will be clearly and completely described below with reference to the accompanying drawings.

Please refer to fig. 1, which is a schematic structural diagram of a food processor for extraction according to an embodiment of the present application. The food processing machine can be a tea extracting cup, which comprises a main machine 1 arranged below and a cup body 2 arranged on the main machine 1, wherein an air pump 3 is arranged inside the main machine 1, the inside of the cup body 2 is divided into an inner space 41 and an outer space 42 through an extraction cavity 4, and the inner space 41 and the outer space 42 are communicated with each other through a filter hole 43 at the bottom of the extraction cavity 4.

Wherein, the extraction chamber 4 is sealed at the rim of a cup of the cup body 2, so that the top of the outer space 42 forms a closed space, and is communicated with the outside through the pressure relief module 44, and it is easy to understand that the pressure relief module 44 can be arranged at the top of the outer space 42 and is directly communicated with the outside of the cup body 2, or is communicated with the inner space 41 and then is communicated with the outside of the cup body 2.

Please refer to fig. 2, which is a schematic diagram illustrating steps of a method for controlling an air pump of a food processor according to an embodiment of the present application. The inside control module that still is provided with of host computer 1 can control the operating condition of air pump 3, realizes the regulation and control to the liquid reciprocating motion in the cup 2 through aerifing or stopping aerifing. The control method of the air pump 3 includes S101 to S103:

s101, in an inflation stage, the air pump 3 is controlled by the control module to pump air to an outer space 42 between the extraction cavity 4 and the cup body 2 for pressurization, liquid is pressed down to form a circulating water quantity, and the circulating water quantity enters the inner space 41 from the filter hole 43;

s102, in an intermittent stage, controlling the air pump 3 to stop pumping air, leading out air through the pressure relief module 44, recovering air pressure to a balanced state, and leading the circulating water quantity to flow back from the inner space 41 to the outer space 42 under the action of self gravity;

and S103, a circulation process, namely controlling the air pump 3 to circularly perform an inflation stage S101 and an intermittent stage S102, and performing reciprocating extraction on the extraction material in the extraction cavity 4 through the circulating water quantity.

In one embodiment, in the inflation stage S101, the air pump 3 is controlled to inflate T1 to inflate and pressurize the inner space 41 of the cup body 2, and the liquid is introduced into the extraction chamber, wherein T1 is more than or equal to 3S and less than or equal to 10S, and if the time is less than 2S, the time is too short, the tea leaves are not completely soaked in the water, and the tea extraction effect cannot be achieved; if the time is more than 10s, the single aeration time is too long, the extraction times in unit time are too small, and the lifting times of the liquid level during tea extraction can not be ensured.

In another embodiment, in the intermittent step S102, the control module controls the air pump 3 to stop pumping for T2, wherein T1 is less than or equal to 4S and less than or equal to 10S, and if the time is less than 4S and the time is too short, the next inflation will be started again when the tea water level can not drop completely; if the time is more than 10s, the tea water level is lowered and then kept still for a long time, and the cold tea extraction effect cannot be achieved.

Preferably, the working time of the air pump 3 in the inflation stage and the intermittent stage is controlled to be equal, so that the speed of the circulating water volume in the water inlet and falling process is ensured to be approximately consistent, and the purpose of stable effect of full extraction is achieved through uniform reciprocating motion.

In the cyclic process S103, the working time t of the cyclic stage and the number of times n of cyclic operation may be limited by the control module, where t is greater than or equal to 10min and less than or equal to 40min, and n is greater than or equal to 30 and less than or equal to 342, and may be selected and adjusted by the user according to different processing scenarios.

In an operation process, the working time of a single cycle period is 10 seconds, wherein the working time of the air pump 3 in the aeration stage and the working time of the air pump in the intermittent stage are both 5 seconds, and after a user starts the tea extraction function, the working time of the whole cold extraction process needs 20 minutes, and the process of 120 times of cyclic extraction needs to be completed.

The method for extracting an air pump of a food processor further comprises a water intake stage S100 before starting the first aeration stage S101.

In a further operation, in the water inlet stage S100, the water level inside the cup body needs to be added to the standard liquid level in advance, that is, the liquid level can completely cover the filtering holes 43 below the extraction chamber 4, or at least can partially cover the extraction material inside the extraction chamber 4, so that a closed space can be formed between the top of the outer space 42 and the liquid level, so as to store the gas for pressurization during the aeration stage, and ensure that the circulating water volume can have enough power during the flushing process to the inner space 41.

Please refer to fig. 3, which is a schematic diagram illustrating a pressure stabilizing step of an air pump of a food processor according to an embodiment of the present application. In the inflation stage of each cycle process, the air pump extraction method of the food processor further comprises a voltage stabilization stage S200, which ensures that the air pump 3 outputs constant power in the air pumping process and the amount of circulating water formed by pressing down the liquid level of the outer space 42 is constant, and the rising heights of the liquid level in the extraction cavity 4 are approximately consistent after the end of each inflation stage, so that the reduction of extraction efficiency caused by the attenuation of long-time working voltage is avoided. Specifically, the control method of the voltage stabilization stage S200 includes:

s201, collecting a real-time power supply voltage value of a battery in a working process;

s202, dynamically adjusting the duty ratio of the real-time power supply voltage in the working process;

and S203, controlling the output voltage value of the air pump to be constant in the working process.

In one embodiment, the control module includes an acquisition unit and a control unit. Due to the operating characteristics of the lithium battery, the voltage will gradually decrease as the remaining capacity decreases, so that the power supply voltage of the entire air pump 3 will gradually decrease during the entire operation. In order to avoid the influence on the working efficiency of the air pump in each extraction circulation process, the real-time power supply voltage of the air pump 3 in the working process can be acquired in advance through the acquisition unit in the control module, the duty ratio under the current power supply voltage is dynamically adjusted through the regulation and control unit according to the duty ratio mapping relation between the power supply voltage and the working voltage of the air pump, the constant-voltage control of the air pump is realized, and the circulating water quantity can be ensured to rise to a corresponding height range after the completion of each inflation stage.

In yet another embodiment, the control module further comprises a protection circuit. In the process of controlling the air pump to pump air, when the pressure relief module is accidentally blocked or plugged, the air pressure in the cup body is gradually increased, so that the working current load of the air pump is gradually increased, and the protection circuit is automatically opened and controls the air pump to stop working continuously until the working current load exceeds a normal working threshold value.

Please refer to fig. 4, which is a schematic diagram illustrating a step of a food processor air pump including a stirring stage according to an embodiment of the present application.

The main machine 1 of the food processor is also provided with a driving motor 5 which can be controlled by a control module and a stirring piece 6 which is in driving connection with the driving motor 5. The air pump extraction method of the food processor further comprises the following steps:

and S300, in the stirring stage, the control module controls the driving stirring piece 6 to rotate, and the circulating water with higher concentration flowing out of the extraction cavity 4 is stirred and mixed, so that the extraction substance is accelerated to be fully fused with the liquid in the cup.

It is easy to think that the stirring stage S300 can be performed in each circulation process, or the stirring stage S300 can be performed for 1 time at intervals after multiple circulations, so as to realize the rapid dissolution of extracted nutrients, make the cold extraction effect of the whole cup better, and improve the taste of users.

In one embodiment, in the process of the control module controlling the air pump to perform the cyclic extraction, the operation time of the air charging stage S101 is

The working time of the intermittent stage S102 is

And the working time of the stirring stage S300 is

Wherein, in the step (A),

. It will be appreciated that the stirring phase S300 may be started after the intermittent phase S102 is completed, and the air pump 3 is inflated during the period S101

(ii) a Alternatively, the stirring phase S301 may be started after the inflation phase S101 is completed and before the intermittent phase S102 is completed, wherein the operation time of the inflation phase S101 of the air pump 3 is set

. The relative water quantity of the cup body 2 is selected, when the water quantity is relatively large, the water can be dissolved while falling back through the circulating water quantity, and therefore the dissolving efficiency is improved.

Further, in the embodiment contents shown in fig. 1 to fig. 4, the number of cycles and the content of tea polyphenols required to be extracted are different according to different varieties and tastes of tea, as shown in the following table:

tea species	Amount of tea (g)	Amount of water (g)	Taste of the product	Number of extraction cycles	Tea polyphenols (mg/L)
						Green tea	6	300	Fresh and clean	130	15-30
Black tea	6	300	Mellow	120	18-40
						Oolong tea	6	300	Rich in flavor	150	10-35
Jasmine tea	6	300	Fresh and clean	180	12-30
						Rose tea	6	300	Fresh and clean	180	10-25

Through the air pump control method provided by the embodiment, the extraction requirements of different varieties or different taste types of tea can be met adaptively, for example: the scented tea is difficult to brew and extract compared with black tea and green tea, and the required cycle times are relatively more; the taste of black tea is preferred to be mellow, and the required brewing times are relatively small. Realize the differentiation based on air pump control and dash and steep, and then ensure in the tea drink after the extraction, the standardization of extraction is realized to the content homoenergetic of tea polyphenol material in suitable scope, promotes the taste of dashing and steeping quality and user of tea drink and experiences.

Furthermore, the user can match different cold extraction modes according to the requirement. It can be understood that the extraction times of different tea types are stored in the control module in advance, and the corresponding cycle times are matched according to different function keys.

In addition, the water temperature can also have certain influence on the tea extraction effect, so that corresponding recommended extraction times can be selected for the water temperature selected by the user.

In an embodiment, a temperature sensor may be added to the main unit 1, and the number of times of tea extraction is further matched according to the water temperature value, for example: when water with the temperature lower than 40 ℃ is used for extraction, the tea extraction times need to be kept above 90 times; extracting with water at 40-60 deg.C for more than 60 times; the tea is extracted by water with the temperature of above 60 ℃, and the tea extraction times need to be kept above 40 times.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made to the present application by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. The food processor comprises a host and a cup body arranged on the host, wherein an air pump is arranged in the host, the food processor is characterized in that an extraction cavity which is in sealing connection is movably arranged at the cup opening of the cup body, a pressure relief module is arranged above the cup body, a control module for controlling the air pump to work is arranged in the host, and the air pump control method comprises the following steps:

in the air inflation stage, the control module controls an air pump to pump air and pressurize an outer space between the extraction cavity and the cup body, liquid is pressed downwards to form a circulating water quantity, and the circulating water quantity enters the inner space of the extraction cavity from a filter hole at the bottom of the extraction cavity;

in the intermittent stage, the air pump is controlled to stop pumping air, air is led out through the pressure relief module, the air pressure is restored to a balanced state, and the circulating water quantity is guided to flow back from the inner space to the outer space under the action of the gravity of the circulating water quantity;

2. The air pump control method for an extraction food processor as claimed in claim 1, wherein the air pump control method comprises:

and in the intermittent stage, controlling the air pump to stop inflating for T2 time, and waiting for the circulating water to flow out of the extraction cavity, wherein T1 is more than or equal to 4s and less than or equal to 10 s.

3. The air pump control method for an extraction food processor as claimed in claim 2, wherein the air pump control method further comprises:

4. The method of claim 1, wherein the cycling comprises:

5. The method of claim 1, further comprising, prior to the aeration phase:

6. The method of claim 1, wherein the controlling module controls the pump to pump during the inflation phase further comprises:

and (3) voltage stabilization: the real-time voltage of the air pump in the working process is obtained, the real-time duty ratio is adjusted through the control module, the air pump is guaranteed to output with constant power in the air pumping process, and the circulating water quantity values in the extraction cavity are close to the same in each circulating process.

7. The method as claimed in claim 1, wherein the main body further comprises a driving motor controlled by the control module and a stirring member drivingly connected to the driving motor, and the method further comprises the following steps:

8. The method of claim 7, wherein the cycling further comprises:

9. The method of claim 7, further comprising:

the working time of the inflation phase is

The working time of the intermittent stage is

The working time of the stirring stage is

Wherein, in the process,

。

10. the method of claim 4, wherein the food processor further comprises a temperature sensor, and wherein the cycling process further comprises: