CN110279303A - A kind of method for heating and controlling of food processor - Google Patents
A kind of method for heating and controlling of food processor Download PDFInfo
- Publication number
- CN110279303A CN110279303A CN201910565224.XA CN201910565224A CN110279303A CN 110279303 A CN110279303 A CN 110279303A CN 201910565224 A CN201910565224 A CN 201910565224A CN 110279303 A CN110279303 A CN 110279303A
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- Prior art keywords
- temperature
- water
- heating
- thermal modules
- food processor
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Classifications
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J31/00—Apparatus for making beverages
- A47J31/44—Parts or details or accessories of beverage-making apparatus
- A47J31/46—Dispensing spouts, pumps, drain valves or like liquid transporting devices
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J31/00—Apparatus for making beverages
- A47J31/44—Parts or details or accessories of beverage-making apparatus
- A47J31/46—Dispensing spouts, pumps, drain valves or like liquid transporting devices
- A47J31/461—Valves, e.g. drain valves
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J31/00—Apparatus for making beverages
- A47J31/44—Parts or details or accessories of beverage-making apparatus
- A47J31/54—Water boiling vessels in beverage making machines
- A47J31/542—Continuous-flow heaters
- A47J31/545—Control or safety devices
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J31/00—Apparatus for making beverages
- A47J31/44—Parts or details or accessories of beverage-making apparatus
- A47J31/54—Water boiling vessels in beverage making machines
- A47J31/56—Water boiling vessels in beverage making machines having water-level controls; having temperature controls
Abstract
The embodiment of the invention discloses a kind of method for heating and controlling of food processor, food processor includes: water tank, water pump, i.e. thermal modules, the first temperature sensor, second temperature sensor and control module；The detection of first temperature sensor is the first temperature of thermal modules water inlet water flow；Second temperature sensor detection is the second temperature of thermal modules water outlet water flow；I.e. thermal modules are the high-power heating module more than or equal to 2000W；It is flowed in water thermal modules in sight this method comprises: the water pump in water tank is sent as an envoy to by water pump, by being that thermal modules heat flowing water；Temperature feedback is carried out according to the water pumping speed that the first temperature controlled water pumps, and according to second temperature, corresponding adjustment is the heating power of thermal modules.By the example scheme, flowing water can be heated, achieve the effect that water outlet is i.e. hot, heating duration can be shortened, realize the precision feedback control to water temperature, it is ensured that waterflow stabilization guarantees that output water temperature meets the requirements.
Description
Technical field
The present embodiments relate to cooking equipment control technology, espespecially a kind of method for heating and controlling of food processor.
Background technique
Food processor (such as soy bean milk making machine) has the following problems at present:
1, it is welded on cup body using heating tube to be heated to water, is influenced by bonding area and thermic load, heated
Power is lower, usually in 1000W hereinafter, causing mixing time long.
2, current i.e. drinking-water water outlet flow instability, output water temperature deviation is big, while after water is heated to higher temperature
Can boil and generate a large amount of steam, cause to be obstructed into water, be discharged flow instability, and leaving water temperature can not accomplish it is excessively high.
Summary of the invention
The embodiment of the invention provides a kind of method for heating and controlling of food processor, can add to flowing water
It is i.e. hot to achieve the effect that water outlet, while can shorten heating duration for heat, and ensures waterflow stabilization, guarantees output water temperature and setting
Temperature difference is smaller.
In order to reach purpose of the embodiment of the present invention, the embodiment of the invention provides a kind of computer heating control sides of food processor
Method, the food processor may include:
Water tank, water pump, i.e. thermal modules, the first temperature sensor, second temperature sensor and control module；First temperature
Degree sensor and the second temperature sensor are connected with the control module, and first temperature sensor is for detecting institute
State the first temperature t1 of i.e. thermal modules water inlet water flow；The second temperature sensor is discharged for detecting the i.e. thermal modules
The second temperature t2 of water flow at mouthful；It is described i.e. thermal modules be high-power heating module, it is described it is high-power refer to be greater than or equal to
The power of 2000W；The described method includes: pumping out the water in the water tank by the water pump, and make the water pumped out described
Flowing i.e. in thermal modules, to be heated by the i.e. thermal modules to flowing water；
The water pumping speed of the water pump is controlled according to the first temperature t1, and temperature is carried out according to the second temperature t2
Feedback, the heating power of the corresponding adjustment i.e. thermal modules, so that final leaving water temperature is consistent with set temperature T.
In an exemplary embodiment of the present invention, the food processor can also include: to be connected with the control module
Flowmeter；
The water pumping speed for controlling the water pump according to the first temperature t1 may include:
Theoretical flow is calculated according to the first temperature t1 and set temperature T；
The water pumping speed of the water pump is controlled according to the theoretical flow and flowmeter actual flow detected.
In an exemplary embodiment of the present invention, described that temperature feedback is carried out according to the second temperature t2, it is corresponding to adjust
That is the heating power of the thermal modules may include: by the second temperature t2 compared with the set temperature T-phase, according to described
Difference between second temperature t2 and the set temperature T adjusts the heating power.
In an exemplary embodiment of the present invention, described according between the second temperature t2 and the set temperature T
Difference adjusts the heating power
When the second temperature t2 meets: when T-T1≤t2≤T+T2, keeping current heating frequency constant；Wherein, T1 is
Preset first temperature gap, T2 are preset second temperature difference；
When the second temperature t2 meets: when T+T2 < t2 < T+T3, detecting the primary second temperature every duration t
T2 reduces the heating power when the second temperature t2 is constant or is in propradation；When the second temperature t2 is in
When decline state, increase the heating power；
When the second temperature t2 meets: when T+T3≤t2, reducing the heating power；
When the second temperature t2 meets: when AT < t2 < T-T1, the primary second temperature t2 is detected every duration t,
When the second temperature t2 is in propradation, the heating power is reduced；When the second temperature t2 is constant or is in down
When drop state, increase the heating power；
When the second temperature t2 meets: when t2≤AT, increasing the heating power.
In an exemplary embodiment of the present invention, i.e. check valve has can be set in the water outlet of the thermal modules；It is described
The cracking pressure of check valve meets: 17Kpa-23Kpa.
In an exemplary embodiment of the present invention, the second temperature sensor can have detecting electrode function；
When the method can also include: initial water pumping, by the water pump by the water pump in the water tank to the inspection
It surveys with rear stopping water pumping at electrode, and water is heated with total power by the i.e. thermal modules, when water temperature reaches and the setting
When temperature has the third temperature of the first difference, it is again started up the water pump.
In an exemplary embodiment of the present invention, the method can also include: the square wave by exporting different duty
Signal drives water pump, to carry out Linear Control to water velocity.
In an exemplary embodiment of the present invention, the method can also include: in the startup stage of the water pump, with complete
After speed drives the pump working preset duration, the plugman is driven with duty ratio corresponding with current water velocity
Make.
In an exemplary embodiment of the present invention, the method can also include: the supply voltage in the i.e. thermal modules
When fluctuation, for different supply voltages, to be thermal modules work described in power limitation control scheme control.
In an exemplary embodiment of the present invention, the installation site of first temperature sensor is far from the i.e. hot-die
Block.
In an exemplary embodiment of the present invention, the food processor can also include: water-way conversion device, the water
Road conversion equipment is set to the water outlet of the i.e. thermal modules, and the hot water for exporting the i.e. thermal modules is directly to drink
Water output.
The beneficial effect of the embodiment of the present invention may include:
1, the food processor of the embodiment of the present invention may include: water tank, water pump, i.e. thermal modules, the first temperature sensor,
Second temperature sensor and control module；First temperature sensor and the second temperature sensor with the control mould
Block is connected, and first temperature sensor is used to detect the first temperature of the i.e. thermal modules water inlet water flow；Described second
Temperature sensor is used to detect the second temperature t2 of the i.e. thermal modules water outlet water flow；That is the thermal modules are high-power add
Thermal modules, the high-power power referred to more than or equal to 2000W；The described method includes: passing through the water pump for the water
Water in case pumps out, and flows the water pumped out in the i.e. thermal modules, with by the i.e. thermal modules to flowing water into
Row heating；The water pumping speed of the water pump is controlled according to first temperature, and temperature feedback is carried out according to the second temperature,
The heating power of the corresponding adjustment i.e. thermal modules, so that final leaving water temperature is consistent with set temperature T.By this
Example scheme can heat flowing water, it is i.e. hot achieve the effect that water outlet, while can shorten heating duration, realize
To the precision feedback control of water temperature, it is ensured that waterflow stabilization guarantees that output water temperature and set temperature difference are smaller.
2, the food processor of the embodiment of the present invention can also include: the flowmeter being connected with the control module；
The water pumping speed for controlling the water pump according to first temperature may include: according to first temperature and the setting
Temperature T calculates theoretical flow；The water pump is controlled according to the theoretical flow and flowmeter actual flow detected
Pump speed.By the example scheme, the flow velocity that can quickly adjust water reaches theoretical flow, solves different water pumps and pumps
Flow error caused by capacity variance, so that leaving water temperature is more accurate quick.
3, the described of the embodiment of the present invention carries out temperature feedback, the corresponding adjustment i.e. thermal modules according to the second temperature
Heating power may include: by the second temperature t2 compared with the set temperature T-phase, according to the second temperature t2 with
Difference between the set temperature T adjusts the heating power.By the example scheme, the high-precision to water temperature is realized
It adjusts, further improves the accuracy of leaving water temperature.
4, the difference according between the second temperature t2 and the set temperature T of the embodiment of the present invention adjusts institute
Stating heating power may include: when the second temperature t2 meets: when T-T1≤t2≤T+T2, keep current heating frequency not
Become；Wherein, T1 is preset first temperature gap, and T2 is preset second temperature difference；When the second temperature t2 meets: T+
When T2 < t2 < T+T3, the primary second temperature t2 is detected every duration t, when the second temperature t2 is constant or is in rising
When state, the heating power is reduced；When the second temperature t2 is in decline state, increase the heating power；Work as institute
It states second temperature t2 satisfaction: when T+T3≤t2, reducing the heating power；When the second temperature t2 meets: AT < t2 < T-
When T1, the primary second temperature t2 is detected every duration t, when the second temperature t2 is in propradation, described in reduction
Heating power；When the second temperature t2 is constant or is in decline state, increase the heating power；When the second temperature
T2 meets: when t2≤AT, increasing the heating power.The example scheme carries out stepping tune by the feedback to leaving water temperature
Section, when low temperature, increase heating power, and when high temperature reduces heating power, enable leaving water temperature quickly stable in set temperature,
Avoid extremes of temperature.
5, check valve has can be set in the water outlet of the i.e. thermal modules of the embodiment of the present invention；The check valve is opened
Open pressure satisfaction: 17Kpa-23Kpa.The example scheme increases the pressure in pipeline by check valve and water is made to be heated to approach
Will not occur the phenomenon that largely vaporizing when boiling point, further improve the maximum temperature of water outlet, ensure that the safety of drinking water
Property.
6, the second temperature sensor of the embodiment of the present invention can have detecting electrode function；The method can be with
When including: initial water pumping, it will be pumped by the water pump at the water pump in the water tank to the detecting electrode with rear stopping, and
Water is heated with total power by the i.e. thermal modules, when water temperature reaches the third temperature for having the first difference with the set temperature
When spending, it is again started up the water pump.By the example scheme, when solving initial water pumping, when water pump is driven with low duty ratio
Existing the problem of can not starting.
The other feature and advantage of the embodiment of the present invention will illustrate in the following description, also, partly from explanation
It is become apparent in book, or understand through the implementation of the invention.The purpose of the embodiment of the present invention and other advantages can pass through
Specifically noted structure is achieved and obtained in the specification, claims and drawings.
Detailed description of the invention
Attached drawing is used to provide one for further understanding technical solution of the embodiment of the present invention, and constituting specification
Point, it is used to explain the present invention the technical solution of embodiment together with embodiments herein, does not constitute to the embodiment of the present invention
The limitation of technical solution.
Fig. 1 is the structural scheme of mechanism of the food processor of the embodiment of the present invention；
Fig. 2 is the method for heating and controlling flow chart of the food processor of the embodiment of the present invention；
Fig. 3 is the flow sensing circuit schematic diagram of the embodiment of the present invention.
Specific embodiment
Understand in order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with attached drawing pair
The embodiment of the present invention is described in detail.It should be noted that in the absence of conflict, embodiment and reality in the application
The feature applied in example can mutual any combination.
Step shown in the flowchart of the accompanying drawings can be in a computer system such as a set of computer executable instructions
It executes.Also, although logical order is shown in flow charts, and it in some cases, can be to be different from herein suitable
Sequence executes shown or described step.
In order to reach purpose of the embodiment of the present invention, the embodiment of the invention provides a kind of computer heating control sides of food processor
Method, as shown in Figure 1,
The food processor includes: water tank 1, water pump 4, i.e. thermal modules 5, the first temperature sensor, second temperature sensing
Device and control module；First temperature sensor 2 and the second temperature sensor 6 are connected with the control module, institute
The first temperature sensor is stated for detecting the first temperature t1 of the i.e. 5 water inlet water flow of thermal modules；The second temperature passes
Sensor is used to detect the second temperature t2 of the i.e. 5 water outlet water flow of thermal modules；That is the thermal modules 5 are high-power heated mould
Block, the high-power power referred to more than or equal to 2000W；The method includes S101-S102:
S101, the water in the water tank 1 is pumped out by the water pump 4, and makes the water pumped out in the i.e. thermal modules 5
Flowing, to be heated by the i.e. thermal modules 5 to flowing water；
S102, the water pumping speed that the water pump 4 is controlled according to the first temperature t1, and according to the second temperature t2 into
Trip temperature feedback, the heating power of the corresponding adjustment i.e. thermal modules 5, so that final leaving water temperature and set temperature T are protected
It holds consistent.
In an exemplary embodiment of the present invention, as shown in Figure 1, the food processor can also include: and the control
The connected flowmeter 3 of molding block.
In an exemplary embodiment of the present invention, as shown in Figure 1, food processor may include: water tank 1, the first temperature
(the first temperature sensor 2 is inflow temperature sensor, and second temperature sensor 6 is water outlet for sensor 2, second temperature sensor 6
Temperature sensor), flowmeter 3, water pump 4, i.e. thermal modules 5, check valve 9, reversal valve 10, the components such as control module, each component it
Between linked together by pipeline.
In an exemplary embodiment of the present invention, the water for needing to heat can water tank 1: be used to store；
Inflow temperature sensor 2: it can be used to measure inflow temperature, be mounted in pipeline, installation site distance is hot-die
Block 5 can prevent the i.e. heat of thermal modules 5 itself from having an impact to its thermometric in 2cm or more；
Present flow rate: can be fed back to control module by flowmeter 3, and control module carries out flow of inlet water according to the signal
Closed loop is adjusted, and carries out dry combustion method protection to i.e. thermal modules 5；
Water pump 4: flowing in water thermal modules 5 in sight can be made；
That is thermal modules 5: can be high-power heating module, for heating water；
Leaving water temperature sensors 6: can be used to measure leaving water temperature, control module can be according to the temperature to leaving water temperature
Closed-loop control is carried out, and may be mounted in pipeline, installation site can be as close as possible to i.e. thermal modules 5, while can also play
Electrode effect；
Crushing cup 8: the container of production food (such as soya-bean milk)；
Check valve 9: being mounted on water inlet line, increases the internal pressure of entire pipeline, the water made to 100 DEG C not yet
It can boil, moreover it is possible to prevent outflow water from flowing back；
Reversal valve 10: hot water is made to lead to crushing cup or ready-to-drink water out for switching water inlet line.
In an exemplary embodiment of the present invention, the water pumping speed that the water pump is controlled according to the first temperature t1
May include:
Theoretical flow is calculated according to the first temperature t1 and set temperature T；
The water pumping speed of the water pump is controlled according to the theoretical flow and flowmeter actual flow detected.
It in an exemplary embodiment of the present invention, is that thermal modules water inlet temperature t1 obtains being heated to required temperature by acquisition
The flow f of (i.e. set temperature T) is spent, control water pump rotation is drawn water and carried out by the signal of flowmeter 3 to water pump driving voltage
It quickly adjusts, so that actual flow is consistent with theoretical flow.
In an exemplary embodiment of the present invention, described that temperature feedback is carried out according to the second temperature t2, it is corresponding to adjust
That is the heating power of the thermal modules may include: by the second temperature t2 compared with the set temperature T-phase, according to described
Difference between second temperature t2 and the set temperature T adjusts the heating power.
In an exemplary embodiment of the present invention, by be that 5 outlet temperature sensor of thermal modules measures t2 pairs of temperature
I.e. the leaving water temperature of thermal modules 5 carries out feedback regulation, finally makes leaving water temperature t2 consistent with set temperature T.That is 5 function of thermal modules
Rate is bigger, shorter the time required to heating, and it is 2100W that this embodiment scheme, which can take the power of heating module 5, due to crushing cup 8
Heating tube maximum power 1000W, so as to shorten 50% heating water duration.
In an exemplary embodiment of the present invention, it is thermal modules 5 by increasing, flowing water can be heated, be reached
To water outlet it is the effect of heat, while 50% heating duration can be shortened.
In an exemplary embodiment of the present invention, hot water control method, so that water outlet is quickly, leaving water temperature can be controlled accurately
System can meet user to the water demand (such as bubble milk, production diatery supplement) of different water temperatures.
Embodiment two
The embodiment on the basis of example 1, gives through fixed pump water flow velocity, and adjusting is that thermal modules 5 heat function
Rate obtains a complete embodiment scheme of i.e. hot drink.
In an exemplary embodiment of the present invention, entirely i.e. thermal control scheme may include following several stages:
1, water inlet is full of i.e. thermal modules 5, while total power preheats the water in module.
2, system is calculated according to inflow temperature and set temperature T (leaving water temperature namely required temperature that set)
Theoretical water velocity.
3, driving adjustment water pump makes practical water velocity consistent with theory water velocity, while heating module 5 can be with
0.9 times of total power is heated.
4, being finely adjusted according to the temperature that leaving water temperature sensors 6 are fed back to heating power ensures practical leaving water temperature and sets
It is consistent to determine temperature T.
In an exemplary embodiment of the present invention, due to constant flow rate in whole process, so that flow of water constant is not when water outlet
It will appear the intermittent phenomenon of water flow.Meanwhile high-precision, which is adjusted, easily to be realized to the adjusting of the i.e. heating power of thermal modules 5
Section, improves the accuracy of leaving water temperature.
Embodiment three
The embodiment gives the water outlet installation check valve 9 of thermal modules 5 in sight on the basis of embodiment one or two
Example scheme, the check valve have biggish cracking pressure.
In an exemplary embodiment of the present invention, i.e. check valve 9 has can be set in the water outlet of the thermal modules；It is described
The cracking pressure of check valve 9 can satisfy: 17Kpa-23Kpa.
In an exemplary embodiment of the present invention, check valve 9 can be installed at crushing cup 8 and ready-to-drink water out,
It can be a spring spindle inside it, be in closed state under normal circumstances.When pressure is greater than cracking pressure at water inlet, spring
Check valve 9 is opened after mandril pushes compressed spring, spring to be compressed by water, water route conducting.
In an exemplary embodiment of the present invention, according to the An Tuoyin of water (Antoine) equation, the boiling point of water and locating pressure
The relationship of power are as follows: lgP=a-b/ (bp1+c), wherein a, b, c are the Antoine constant of water, are calculated it can be concluded that water in pipeline
The relationship of boiling point bp1 and manifold pressure P, conversion obtain the every increase 3KPa of P, and boiling point bp1 increases by 1 DEG C in pipeline.
In an exemplary embodiment of the present invention, manifold pressure P=atmospheric pressure+unidirectional valve opening pressure, it is contemplated that
Temperature sensor and pressure sensor have 2% or so worst error, and manifold pressure need to be greater than 12KPa, just can guarantee
Water under the conditions of each in pipeline is all not in vaporization phenomenon.The cracking pressure of check valve is bigger, and the water boiling point in pipeline is got over
Height, but excessive pressure can improve the probability that pipe joint loosens.This embodiment scheme can make the unlatching of the check valve 9
Pressure can satisfy: 17Kpa-23Kpa, for example, the cracking pressure of check valve can be used for 20Kpa, it is ensured that in pipeline
Boiling point be greater than current atmospheric pressure 6 DEG C of boiling point or so.
In an exemplary embodiment of the present invention, when by increasing the pressure in pipeline water being heated to close to boiling point
The phenomenon that being not in a large amount of vaporizations, further improves the maximum temperature of water outlet, ensure that the safety of drinking water.While by
In the pressure in pipeline there are 20Kpa or so, impact force when flowing through heating module is increased, is effectively reduced i.e. thermal modules
Scale deposition in 5.
Example IV
For the embodiment on the basis of above-mentioned any embodiment, the water outlet for giving i.e. thermal modules 5, which is provided with, has inspection
Survey the example scheme of the temperature sensor of electrode function.
In an exemplary embodiment of the present invention, the second temperature sensor 6 can have detecting electrode function；
When the method can also include: initial water pumping, by the water pump by the water pump in the water tank to the inspection
It surveys with rear stopping water pumping at electrode, and water is heated with total power by the i.e. thermal modules, when water temperature reaches and the setting
When temperature T has the third temperature of the first difference, it is again started up the water pump.
In an exemplary embodiment of the present invention, the function incipient stage can first pump at water outlet end electrode, Quan Gong
Rate heating is the water in thermal modules 5, it is contemplated that water temperature continues to increase after the delay and waste heat that water pump starts will lead to water flowing, water
Temperature is heated to be again started up water pump when the third temperature for having the first difference with the set temperature T and pumped.
In an exemplary embodiment of the present invention, which can satisfy: 2-5 DEG C, for example, can choose 3, then and
Three temperature can be with are as follows: T-3 DEG C.I.e. water temperature heating to T-3 DEG C of set temperature when be again started up water pump and pumped.
In an exemplary embodiment of the present invention, by the example scheme, so that temperature when being discharged of drinking water, that is, reachable
To set temperature T, guarantees entirely i.e. Drinking Water Temperature consistency, avoid the lower situation of front half section leaving water temperature.
Embodiment five
The embodiment gives on the basis of above-mentioned any embodiment and exports difference by control module (such as single-chip microcontroller)
The square-wave signal of duty ratio drives water pump, to carry out the example scheme of Linear Control to flow.
In an exemplary embodiment of the present invention, the method can also include: the square wave by exporting different duty
Signal drives water pump 4, to carry out Linear Control to water velocity.
In an exemplary embodiment of the present invention, as shown in figure 3, giving a kind of flow sensing circuit embodiment.When defeated
Out when high level, triode Q6 conducting, so that water pump 4 be driven to work, when exporting low level, triode Q6 cut-off, water pump 4 stops
Work.The flow of water is determined by the voltage at 4 both ends of water pump, i.e., is determined by the high level duration of master control output driving, by adjusting
The duration for exporting high level, can be adjusted the driving capability of water pump 4, so as to adjust water flow velocity in pipeline.Duty ratio D is certain
Range and flow f are in the relationship of approximately linear, i.e. flow f=a × D+K (a be constant with K), while in view of duty ratio is too low
When water pump 4 there are problems that not driving, this embodiment scheme can use output square wave frequency for 1KHZ, duty cycle range is
40%~100% driving signal drives water pump 4.
In an exemplary embodiment of the present invention, the water pumping speed that can control water pump 4 is 0.3F~1F, and F is that water pump is specified
Pump flow velocity.
In an exemplary embodiment of the present invention, by a kind of linear control mode of flow velocity, realize to flow velocity it is accurate,
Effectively control.
Embodiment six
For the embodiment on the basis of above-mentioned any embodiment, the water pump 4 for giving the initial stage controls example scheme.
In an exemplary embodiment of the present invention, the method can also include: in the startup stage of the water pump 4, with
After driving the work of water pump 4 preset duration at full speed, the water pump 4 is driven with duty ratio corresponding with current water velocity
Work.
In an exemplary embodiment of the present invention, 4 startup stage of water pump, the work of meeting low duty ratio, startup stage can be with
First with driving a period of time at full speed.
In an exemplary embodiment of the present invention, when 4 startup stage of water pump, preset duration ts first can be driven with full speed,
The duty ratio for changing corresponding flow velocity into again is driven.Due to will lead to when full speed drives, water temperature is too low, and t does not answer too long, this implementation
Example scheme can take t=0.5s.
In an exemplary embodiment of the present invention, it by the example scheme, is deposited when solving the driving of water pump low duty ratio
The problem of can not starting.
Embodiment seven
The embodiment on the basis of above-mentioned any embodiment, give using flowmeter to the water pumping flow velocity of water pump 4 into
The specific embodiment scheme of row feedback regulation.
In an exemplary embodiment of the present invention, different water pumps flow velocity under same duty ratio D driving has deviation, flow velocity
Deviation will lead to the inconsistent of water temperature.Since in a certain range, duty ratio D is directly proportional to the relationship of flow, i.e. flow f=
A × D+K (a be with K constant), the water pump of same model can difference on parameter K.This can be used the mode of linear approximation
To adjust water pump 4: when needs flow be f1, when, by f=a × D+K it can be seen that at this time needed for duty ratio be D1=(f1-
K)/a, and press this duty cycle ts, according to flowmeter feedback the t second water amount F2 actual flow f2=F2/t,
The corresponding practical K value k2=f2-aD1 of the water pump can be obtained, to obtain the duty for driving the water pump that flow velocity is made to reach f1
Than for D2=(f1-k2)/a.The f2 deviation that t is measured more greatly simultaneously is smaller, but causes temperature deviation bigger, and this embodiment scheme can
To take t=3s.
In an exemplary embodiment of the present invention, setting value is reached by the flow velocity that the control method can quickly adjust water
F1 solves different water pumps and pumps flow error caused by capacity variance, so that leaving water temperature is more accurate quick.
Embodiment eight
The embodiment gives the leaving water temperature sensors by i.e. thermal modules 5 on the basis of above-mentioned any embodiment
The specific embodiment scheme that required flow velocity is determined when to i.e. heat.
In an exemplary embodiment of the present invention, when inflow temperature (i.e. the first temperature) t1 difference, it is heated to identical set
Flow velocity needed for determining temperature is different, the flow of inlet water F of demand by inflow temperature (i.e. the first temperature) t1, set temperature T, when
The maximum power p of heating module 5 is determined under preceding voltage, and the first temperature t1 combination system set point temperature T determines the different temperature difference, into
And initial feed water flow magnitude is obtained, the algorithm of the relationship between master control calculating temperature difference and flow of inlet water, which can be such that, passes through master control
Inflow temperature t1 is detected, knows that inlet and outlet temperature is poor by leaving water temperature (i.e. set temperature) T set: △ T=T-t1.And 1mL
Energy needed for coolant-temperature gage increases 1 DEG C is A (A is constant), then energy needed for 1mL coolant-temperature gage increases △ T DEG C is A × △ T.When
Maximum power p=u^2/U^2 × P (volume) of preceding heating module 5.Due to the systematic error of water pump, flowmeter and temperature sensor,
When initial heating uses total power p, it is possible that temperature is relatively low and the case where power can not be improved, this embodiment scheme can
To take initial heating power for 0.9p, then needed for flow F=0.9p/A △ T.
In an exemplary embodiment of the present invention, this embodiment scheme eliminates different inflow temperature bring errors, keeps away
The inconsistent problem of leaving water temperature caused by different water temperatures is exempted from.
Embodiment nine
The embodiment gives the situation different for voltage on the basis of above-mentioned any embodiment, i.e. thermal modules need
Carry out the example scheme that invariable power adjusts control.
In an exemplary embodiment of the present invention, the method can also include: the supply voltage in the i.e. thermal modules
When fluctuation, for different supply voltages, to be thermal modules work described in power limitation control scheme control.
In an exemplary embodiment of the present invention, can according to heating mode (for example, P, 2/3P, P/2, P/3, P/4) and
Voltage (175V~265V) calculates Bobbi, determines that 100 alternations (in 1s) need m just to can guarantee that power is equivalent,
Then power combination mode and every grade of power working time are determined according to m.If current voltage is U, m=(220*220) * 100/
(U*U), i.e., m alternation only need to be connected i.e. under current voltage can reach the total power that 100 half-waves are connected at 220v
Heating effect.Starting can be intersected by two kinds of power simultaneously, adjust the period of every kind of heating power to reach and realize in 1s m
The purpose of half-wave conducting.That is p1t1+p2 (100-t1)=m；Wherein, p1, p2 are two kinds of adjustment power, and t1 is p1 duration,
100-t1 is p2 duration.The Adjusted Option for bringing each power into above formula when can obtain different m is as shown in table 1:
Table 1
| M >=100 | P1=p2=P | T1=50 |
| m>66 | P1=P p2=2/3p | T1=300-3m |
| m>50 | P1=2/3p p2=1/2p | T1=6m-300 |
| m>33 | P1=1/2p p2=1/3p | T1=400-6m |
| m>25 | P1=1/3p p2=1/4p | T1=12m-300 |
| M >=0 | P1=0p p2=1/4p | T1=100-4m |
In an exemplary embodiment of the present invention, by the example scheme, i.e. thermal modules 5 are solved under different voltages
Power deviation problems of too, while the high resolution of power adjustment, can reach 1%, it is ensured that leaving water temperature can be adjusted within the scope of 1 DEG C
It is whole.
Embodiment ten
The embodiment gives the water outlet measured according to outlet temperature sensor on the basis of above-mentioned any embodiment
The specific embodiment scheme of temperature adjustment heating power.
In an exemplary embodiment of the present invention, described according between the second temperature t2 and the set temperature T
Difference adjusts the heating power
When the second temperature t2 meets: when T-T1≤t2≤T+T2, keeping current heating frequency constant；Wherein, T1 is
Preset first temperature gap, T2 are preset second temperature difference；
When the second temperature t2 meets: when T+T2 < t2 < T+T3, detecting the primary second temperature every duration t
T2 reduces the heating power when the second temperature t2 is constant or is in propradation；When the second temperature t2 is in
When decline state, increase the heating power；
When the second temperature t2 meets: when T+T3≤t2, reducing the heating power；
When the second temperature t2 meets: when AT < t2 < T-T1, the primary second temperature t2 is detected every duration t,
When the second temperature t2 is in propradation, the heating power is reduced；When the second temperature t2 is constant or is in down
When drop state, increase the heating power；
When the second temperature t2 meets: when t2≤AT, increasing the heating power.
It in an exemplary embodiment of the present invention, can be by the calculated equivalent half wave number mx of embodiment nine, according to water outlet
Temperature is further adjusted, i.e., final equivalent half wave number m=mx-Cmin.
In an exemplary embodiment of the present invention, the adjusting of leaving water temperature is mainly that main control module is sensed by leaving water temperature
The second temperature that device 6 is fed back adjusts the wave numbers of falling of i.e. thermal modules, and minimal adjustment amplitude is Cmin, to increase or decrease heating
The heating power of module 5, so that leaving water temperature reaches set temperature.The duration and adjustment amplitude of adjustment can add according to the fluid
The variation tendency of the response time of hot systems, current leaving water temperature (i.e. second temperature) t2 and current leaving water temperature t2 are segmented
It adjusts, the specific rule that adjusts may include as follows:
In an exemplary embodiment of the present invention, when leaving water temperature t2 reaches near set temperature T, i.e., when second temperature
Degree t2 meets: when T-T1≤t2≤T+T2, i.e. thermal modules current power can be kept constant.T1 can be 1-2 DEG C, for example, can
To select T1=1 DEG C；T2 can be 2-3 DEG C, for example, can choose T2=2 DEG C；It can then determine as T-1≤t2≤T+2,
I.e. thermal modules current power can be kept constant.
In an exemplary embodiment of the present invention, when the second temperature t2 meets: when T+T2 < t2 < T+T3, T3 can be with
It is 3-5 DEG C, for example, can choose T3=5 DEG C；Then it can once go out water temperature every duration t acquisition as T+2 < t2 < T+5
Degree can be connected half wave number m every duration t and reduce 2Cmin, it is hot for reducing if leaving water temperature is in rising or invariant state
The heating power of module 5；If leaving water temperature is in decline state, half-wave m can be connected every 2t and increase Cmin.
In an exemplary embodiment of the present invention, when the second temperature t2 meet: when T+T3≤t2, for example, when T+5≤
When t2, Cmin is reduced per that half-wave m can be connected every duration t, quickly reduction is the heating power of thermal modules 5, reduces leaving water temperature.
In an exemplary embodiment of the present invention, when the second temperature t2 meets: (wherein, A can when AT < t2 < T-T1
, then can be as 0.95T < t2 < T-1 to meet 0.9-0.97, such as A=0.95), once go out water temperature every duration t acquisition
Degree reduces Cmin every 2tm, reduces the heating power of heating module if leaving water temperature is in propradation；If at leaving water temperature
In decline or invariant state, increases Cmin every duration t, m, increase the heating power of i.e. thermal modules, improve leaving water temperature.
In an exemplary embodiment of the present invention, when the second temperature t2 meet: when t2≤AT, for example, when t2≤
When 0.95T, half-wave can be connected every duration t and increase Cmin, increase the heating power of i.e. thermal modules, improve leaving water temperature.
In an exemplary embodiment of the present invention, Cmin is smaller, and Adjustment precision is higher, warm according to calculating when Cmin is 1
Degree can generate 1 DEG C of variation, and this embodiment scheme can take Cmin=1.
In an exemplary embodiment of the present invention, adjustment duration t is smaller or more big city generates the feelings that temperature does not stop concussion
It is longer to be adjusted to duration needed for set temperature for condition.It is flowed through i.e. according to the water capacity V of i.e. thermal modules 5 and present flow rate F water
A length of T (the every T time variation of temperature is primary) when the duration T=V/F, i.e. total heating of water of thermal modules 5, when can usually take adjustment
Long t=(0.25-1) T, this embodiment scheme can take T=1s.
In an exemplary embodiment of the present invention, stepping adjusting is carried out by feedback to leaving water temperature, when low temperature carries out
It quickly substantially adjusts, and the amplitude of accommodation is reduced according to temperature ascendant trend, enable leaving water temperature quickly stable in setting temperature
Degree, avoids extremes of temperature.Temperature Adjustment precision is high simultaneously, it is ensured that minimum 1 DEG C of the adjustment of leaving water temperature.
Embodiment 11
The embodiment gives the first temperature sensor and second temperature sensor on the basis of above-mentioned any embodiment
Set-up mode embodiment.
In an exemplary embodiment of the present invention, the installation of first temperature sensor (i.e. inflow temperature sensor) 2
Position is far from the i.e. thermal modules 5；The installation site of the second temperature sensor (i.e. leaving water temperature sensors) is close to described
That is thermal modules 5.
In an exemplary embodiment of the present invention, to avoid the water at inflow temperature sensor by hot water in i.e. thermal modules 5
Reflux causes the inflow temperature (i.e. the first temperature) detected inconsistent with the water in practical water tank, inflow temperature sensor installation
Position may be located remotely from i.e. thermal modules 5；Hot water can be quickly cooled down after leaving i.e. thermal modules 5 simultaneously, guarantee that water outlet measures
Leaving water temperature (i.e. second temperature) is consistent with practical leaving water temperature, and the installation site of leaving water temperature sensors can be as close as possible to i.e.
Thermal modules 5.
In an exemplary embodiment of the present invention, by the example scheme, the accurate of inlet and outlet temperature measurement is improved
Property.
Embodiment 12
The embodiment increases the function of food processor on the basis of above-mentioned any embodiment.
In an exemplary embodiment of the present invention, the food processor can also include: water-way conversion device, the water
Road conversion equipment is set to the water outlet of the i.e. thermal modules, and the hot water for exporting the i.e. thermal modules is directly to drink
Water output.
Currently, food processor (such as soy bean milk making machine) function is more single, user's frequency of usage is not high.
In an exemplary embodiment of the present invention, as shown in Figure 1, this embodiment scheme is by increasing water-way conversion device 7,
Water can be discharged into slurrying cup in slurrying, when not slurrying, can directly drink the hot water discharge of user's required temperature, and go out
Coolant-temperature gage can arbitrarily be set, and meet user to the water demand of different water temperatures.
In an exemplary embodiment of the present invention, food processing (such as slurrying) is improved in conjunction with two kinds of functions of heating up water
The utilization rate and competitiveness of machine.
In an exemplary embodiment of the present invention, hot water be heat i.e. use, avoid water repetition hot plate bring it is unfavorable because
Element.
In short, the embodiment of the present invention carries out flow-type heating to water by high-power i.e. thermal modules, by corresponding
Algorithm control enables water to be heated rapidly to set temperature, shortens slurrying duration.Simultaneously for current food processor function compared with
To be single, the not high problem of user's frequency of usage, this embodiment scheme can be incited somebody to action by increasing water-way conversion device in slurrying
Water is discharged into slurrying cup, when not slurrying, can directly drink the hot water discharge of user's required temperature, and leaving water temperature can be any
Setting, meets user to the water demand of different water temperatures.Simultaneously because current i.e. drinking-water water outlet flow instability, is discharged water
Warm deviation is big, while can boil after water is heated to higher temperature and generate a large amount of steam, causes to be obstructed into water, and water outlet water flow is unstable
It is fixed, and leaving water temperature can not accomplish it is excessively high.By the way of this embodiment scheme adjusts i.e. thermal modules power after first calibrating flow velocity,
So that water outlet water flow and temperature have preferable stability, it is high that water temperature controls precision, and water temperature can reach 100 DEG C or so,
It is not in lead to the problem of a large amount of steam.
It will appreciated by the skilled person that whole or certain steps, system, dress in method disclosed hereinabove
Functional module/unit in setting may be implemented as software, firmware, hardware and its combination appropriate.In hardware embodiment,
Division between the functional module/unit referred in the above description not necessarily corresponds to the division of physical assemblies；For example, one
Physical assemblies can have multiple functions or a function or step and can be executed by several physical assemblies cooperations.Certain groups
Part or all components may be implemented as by processor, such as the software that digital signal processor or microprocessor execute, or by
It is embodied as hardware, or is implemented as integrated circuit, such as specific integrated circuit.Such software can be distributed in computer-readable
On medium, computer-readable medium may include computer storage medium (or non-transitory medium) and communication media (or temporarily
Property medium).As known to a person of ordinary skill in the art, term computer storage medium is included in for storing information (such as
Computer readable instructions, data structure, program module or other data) any method or technique in the volatibility implemented and non-
Volatibility, removable and nonremovable medium.Computer storage medium include but is not limited to RAM, ROM, EEPROM, flash memory or its
His memory technology, CD-ROM, digital versatile disc (DVD) or other optical disc storages, magnetic holder, tape, disk storage or other
Magnetic memory apparatus or any other medium that can be used for storing desired information and can be accessed by a computer.This
Outside, known to a person of ordinary skill in the art to be, communication media generally comprises computer readable instructions, data structure, program mould
Other data in the modulated data signal of block or such as carrier wave or other transmission mechanisms etc, and may include any information
Delivery media.
Claims (10)
1. a kind of method for heating and controlling of food processor, which is characterized in that the food processor includes: water tank, water pump, i.e.
Thermal modules, the first temperature sensor, second temperature sensor and control module；First temperature sensor and second temperature
Degree sensor is connected with the control module, and first temperature sensor is for detecting the i.e. thermal modules water inlet water
First temperature t1 of stream；The second temperature sensor is used to detect the second temperature of the i.e. thermal modules water outlet water flow
t2；That is the thermal modules are high-power heating module, the high-power power referred to more than or equal to 2000W；The method
It include: to be pumped out the water in the water tank by the water pump, and flow the water pumped out in the i.e. thermal modules, to pass through
That is the thermal modules heat flowing water；
The water pumping speed of the water pump is controlled according to the first temperature t1, and anti-according to second temperature t2 progress temperature
Feedback, the heating power of the corresponding adjustment i.e. thermal modules, so that final leaving water temperature is consistent with set temperature T.
2. the method for heating and controlling of food processor according to claim 1, which is characterized in that the food processor is also
It include: the flowmeter being connected with the control module；
The water pumping speed for controlling the water pump according to the first temperature t1 includes:
Theoretical flow is calculated according to the first temperature t1 and set temperature T；
The water pumping speed of the water pump is controlled according to the theoretical flow and flowmeter actual flow detected.
3. the method for heating and controlling of food processor according to claim 1, which is characterized in that
It is described that temperature feedback is carried out according to the second temperature t2, the heating power of the corresponding adjustment i.e. thermal modules 5 include: by
The second temperature t2 is compared with the set temperature T-phase, according to the difference between the second temperature t2 and the set temperature T
Value adjusts the heating power.
4. the method for heating and controlling of food processor according to claim 3, which is characterized in that described according to described second
Difference between temperature t2 and the set temperature T adjusts the heating power
When the second temperature t2 meets: when T-T1≤t2≤T+T2, keeping current heating frequency constant；Wherein, T1 is default
The first temperature gap, T2 be preset second temperature difference；
When the second temperature t2 meets: when T+T2 < t2 < T+T3, the primary second temperature t2 is detected every duration t, when
When the second temperature t2 is constant or is in propradation, the heating power is reduced；When the second temperature t2 is in decline
When state, increase the heating power；
When the second temperature t2 meets: when T+T3≤t2, reducing the heating power；
When the second temperature t2 meets: when AT < t2 < T-T1, detecting the primary second temperature t2 every duration t, work as institute
When stating second temperature t2 and being in propradation, the heating power is reduced；When the second temperature t2 is constant or is in decline shape
When state, increase the heating power；
When the second temperature t2 meets: when t2≤AT, increasing the heating power.
5. the method for heating and controlling of food processor according to claim 1, which is characterized in that i.e. the thermal modules go out
Check valve is provided at the mouth of a river；The cracking pressure of the check valve meets: 17Kpa-23Kpa.
6. the method for heating and controlling of food processor according to claim 3, which is characterized in that the second temperature sensing
Device has the function of detecting electrode；
The method also includes: it, will be at the water pump in the water tank to the detecting electrode by the water pump when initial water pumping
Stop pumping later, and water is heated with total power by the i.e. thermal modules, has when water temperature reaches with the set temperature
When the third temperature of the first difference, it is again started up the water pump.
7. the method for heating and controlling of food processor according to claim 1, which is characterized in that the method also includes:
Square-wave signal by exporting different duty drives water pump, to carry out Linear Control to water velocity.
8. the method for heating and controlling of food processor according to claim 7, which is characterized in that the method also includes:
In the startup stage of the water pump, after driving the pump working preset duration at full speed, with opposite with current water velocity
The duty ratio answered drives the pump working.
9. the method for heating and controlling of food processor according to claim 1, which is characterized in that the method also includes:
In the i.e. mains ripple of thermal modules, for different supply voltages, to be described in power limitation control scheme control
Thermal modules work.
10. the method for heating and controlling of food processor according to claim 1, which is characterized in that the food processor
Further include: water-way conversion device, the water-way conversion device are set to the water outlet of the i.e. thermal modules, for will described be
The hot water of thermal modules output is directly exported with drinking water.
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| CN110960073A (en) * | 2019-11-26 | 2020-04-07 | 九阳股份有限公司 | Steam output control method of food processor and food processor |
| CN111513566A (en) * | 2020-04-21 | 2020-08-11 | 深圳安吉尔饮水产业集团有限公司 | Quick-heating water purifying dispenser, dry-heating preventing method and device thereof, and computer readable storage medium |
| CN112303927A (en) * | 2020-10-30 | 2021-02-02 | 上海纯米电子科技有限公司 | Water outlet temperature adjusting method and device |
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Application publication date: 20190927 |
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