CN105490546A - Full automatic milk powder brewing device - Google Patents
Full automatic milk powder brewing device Download PDFInfo
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- CN105490546A CN105490546A CN201510964198.XA CN201510964198A CN105490546A CN 105490546 A CN105490546 A CN 105490546A CN 201510964198 A CN201510964198 A CN 201510964198A CN 105490546 A CN105490546 A CN 105490546A
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- milk
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
- H02M3/24—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
- H02M3/28—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
- H02M3/325—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal
- H02M3/335—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M3/3353—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only having at least two simultaneously operating switches on the input side, e.g. "double forward" or "double (switched) flyback" converter
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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
- A47J31/40—Beverage-making apparatus with dispensing means for adding a measured quantity of ingredients, e.g. coffee, water, sugar, cocoa, milk, tea
- A47J31/407—Beverage-making apparatus with dispensing means for adding a measured quantity of ingredients, e.g. coffee, water, sugar, cocoa, milk, tea with ingredient-containing cartridges; Cartridge-perforating means
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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
-
- 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
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
- H02K7/1004—Structural association with clutches, brakes, gears, pulleys or mechanical starters with pulleys
- H02K7/1008—Structural association with clutches, brakes, gears, pulleys or mechanical starters with pulleys structurally associated with the machine rotor
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/14—Structural association with mechanical loads, e.g. with hand-held machine tools or fans
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Food Science & Technology (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Control Of Temperature (AREA)
Abstract
The invention provides a full automatic milk powder brewing device. The shell of the milk powder brewing device is cylindrical, wherein a display screen and a rotary knob are arranged on the top of the shell; a water feeding cavity, a milk powder cavity and a stirring cavity are formed in the interior of the shell; a boiling water cavity is formed in the upper half part of the water feeding cavity while a warm water cavity is formed in the lower half part of the water feeding cavity; the milk powder cavity comprises a quantitative supply apparatus; the stirring cavity is connected with the warm water cavity through a second electromagnetic valve, and connected with the material outlet of the quantitative supply apparatus through a third electromagnetic valve; an electric motor is arranged on the top of the stirring cavity; the output shaft of the electric motor is connected with a stirring paddle through a coupling; the bottom of the stirring cavity is connected to a milk outlet in the shell through a fourth electromagnetic valve; a first heating rod is connected to an alternating current power supply; a second heating rod is connected to the output end of a power conversion circuit; and the input end of the power conversion circuit is connected to the alternating current power supply.
Description
Technical field
The present invention relates to electricity field, particularly the full-automatic milk-powder brewing equipment of one.
Background technology
For neonatal father and mother, rush milk powder be one heavy and need careful work.Baby may have milk at any time, needs the boiling water punching preparing thermophilic at any time to release, if milk coolant-temperature gage is too high, can destroys lactalbumin structure in milk powder, cause milk powder nutrition leak; If milk coolant-temperature gage is too low, milk powder dissolves insufficient, causes baby to absorb not, even there will be the situation that stomach is suffered from cold; If milk excessive concentration, except babies being caused to having indigestion, fever, the sodium ion in milk powder cannot dilute, and causes baby's brain capillary rupture, can affect infant intelligence and grow time serious; If milk water concentration is inadequate, protein content deficiency will cause again infant nutrition bad, and physique is poor.
Manually carry out rushing milk to be difficult to accomplish accurate control to temperature and concentration, and need the regular hour to prepare, a lot of time can be expended.
Summary of the invention
The present invention proposes a kind of full-automatic milk-powder brewing equipment, solves in prior art manually to rush milk and be difficult to accurately control and time-consuming problem temperature and concentration.
Technical scheme of the present invention is achieved in that
A kind of full-automatic milk-powder brewing equipment, shell is cylindrical, cover top portion be provided with for display system data display screen and the knob rushing milk amount is set; Enclosure is provided with columniform to water cavity, milk powder chamber and stir chamber; The described first half giving water cavity is boiling water chamber, Lower Half is warm water chamber, the first temperature inductor, the first water level sensor and the first heating rod is provided with in boiling water chamber, be provided with the second temperature inductor, the second water level sensor and the second heating rod in warm water chamber, be connected by the first electromagnetically operated valve between boiling water chamber and warm water chamber; Described milk powder chamber comprises for the weigh feeder to milk powder measurement; Described stir chamber is connected with described warm water chamber by the second electromagnetically operated valve, be connected with the discharging opening of described weigh feeder by the 3rd electromagnetically operated valve, the top of stir chamber is provided with motor, the output shaft of motor is connected with paddle by shaft coupling, and the bottom of stir chamber is connected to the milk outlet on described shell by the 4th electromagnetically operated valve; Described display screen, knob, the first temperature inductor, the first water level sensor, the second temperature inductor, the second water level sensor, the first electromagnetically operated valve, the second electromagnetically operated valve, the 3rd electromagnetically operated valve, the 4th electromagnetically operated valve, weigh feeder and motor are connected to controller, described first heating rod is connected to AC power, described second heating rod is connected to the output of power transformation circuit, and the input of power transformation circuit is connected to described AC power;
Described power transformation circuit comprises:
Input port, receives input voltage;
Output port, provides output voltage;
Upper power switch and lower power switch, be coupled in series between input port and reference ground;
Output inductor, between the coupled in series node being coupled in power switch and lower power switch and output port;
Output capacitor, is coupled between output port and reference ground;
Sampling resistor, with upper power switch coupled in series;
Operational amplifier, has first input end, the second input terminal and lead-out terminal, and its first input end and the second input terminal are connected across sampling resistor two ends, and its lead-out terminal produces inductive current sampled signal;
Feedback component, is coupled to output port and receives output voltage, and produce the feedback voltage of reflection output voltage;
Voltage comparator, has in-phase input end, inverting input and lead-out terminal, its inverting input threshold level voltage, and its in-phase input end is coupled to feedback component and receives feedback voltage, and its lead-out terminal produces voltage comparison signal;
Error amplifier, has in-phase input end, inverting input and lead-out terminal, and its in-phase input end receives reference voltage, and its inverting input is coupled to feedback component and receives feedback voltage, and its lead-out terminal produces error amplification signal;
Clamper, is coupled between the lead-out terminal of error amplifier and reference ground;
First logic switch, has the first terminal, the second terminal and control terminal, and the lead-out terminal that its first terminal is coupled to error amplifier receives error amplification signal, and its control terminal is coupled to the lead-out terminal receiver voltage comparison signal of voltage comparator;
Second logic switch, have the first terminal, the second terminal and control terminal, its first terminal couples current peak signal, and its control terminal is coupled to the lead-out terminal receiver voltage comparison signal of voltage comparator;
Current comparator, there is in-phase input end, inverting input and lead-out terminal, its in-phase input end is coupled to the lead-out terminal received current sampled signal of operational amplifier, its inverting input is coupled to the second terminal of the first logic switch and the second terminal of the second logic switch, its lead-out terminal generation current comparison signal;
Control and drive circuit, be coupled to the lead-out terminal received current comparison signal of current comparator, and based on electric current comparison signal, produce double switch drive singal, to control the break-make of upper power switch and lower power switch;
Described feedback component comprises and is coupled in series in output port and with reference to the first resistance between ground and the second resistance, wherein feedback voltage produces at the coupled in series Nodes of the first resistance and the second resistance;
Described first logic switch is high level conducting, and the second logic switch is low level conducting;
Described clamper comprises Zener diode;
Described synchronous buck circuit comprises further: the first compensation condenser, is coupled between the lead-out terminal of operational amplifier and reference ground;
Described synchronous buck circuit comprises further: the second compensation condenser, is coupled between the lead-out terminal of error amplifier and inverting input.
Alternatively, full-automatic milk-powder brewing equipment of the present invention also comprises the lithium battery being connected to described power transformation circuit output.
Alternatively, described shell is also provided with the USB interface be connected with described lithium battery.
Alternatively, described controller is dsp processor.
Alternatively, the below of described shell milk outlet is provided with tank, and sink top is installed and slipped through the net.
Alternatively, described cover top portion is also provided with LED.
Alternatively, the quantity in described milk powder chamber is multiple.
Alternatively, the rotating disk clockwise direction of described knob is disposed with scale 0,3,6,9,12,15,18,21.
Alternatively, the top of described shell is also provided with handle.
The invention has the beneficial effects as follows:
(1) accurately can control the temperature of milk and concentration, save the time;
(2) the normal use of going out when carrying can be ensured by additional lithium battery.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the perspective view of the present invention's full-automatic milk-powder brewing equipment embodiment;
Fig. 2 is the plan structure schematic diagram of the present invention's full-automatic milk-powder brewing equipment embodiment;
Fig. 3 is the control circui block diagram of the present invention's full-automatic milk-powder brewing equipment embodiment;
Fig. 4 is the structural representation of knob in Fig. 1;
Fig. 5 is the perspective view of another embodiment of the full-automatic milk-powder brewing equipment of the present invention;
Fig. 6 is the control circui block diagram of another embodiment of the full-automatic milk-powder brewing equipment of the present invention;
Fig. 7 is the circuit diagram of power transformation circuit of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
As shown in Figure 1 to Figure 3, according to an embodiment of the full-automatic milk-powder brewing equipment of the present invention, the shell 10 of full-automatic milk-powder brewing equipment is cylindrical, shell 10 top be provided with for display system data display screen 11 and the knob 12 rushing milk amount is set, display screen 11 indication example as water temperature, water outlet, go out the state information such as milk, lack of water, in Fig. 1, the shape of display screen 11 is only schematic, and those skilled in the art can be designed to arbitrary shape to realize effect attractive in appearance.Shell 10 inside is provided with columniform to water cavity 20, milk powder chamber 30 and stir chamber 40, be boiling water chamber 21 to the first half of water cavity 20, Lower Half is warm water chamber 26, the first temperature inductor 22 is provided with in boiling water chamber 21, first water level sensor 23 and the first heating rod 24, first temperature inductor 22 detects the water temperature in boiling water chamber 21, export the first water temperature signal to controller 50, ensure that water temperature reaches 100 degrees Celsius and maintains a period of time, first water level sensor 23 detects boiling water chamber 21 middle water level, at water level lower than sending the first signal of water shortage during lowest water level to controller 50, first heating rod 24 is connected to AC power 60, can ensure water completely boiled, the second temperature inductor 27 is provided with in warm water chamber 26, second water level sensor 28 and the second heating rod 29, second temperature inductor 27 detects the water temperature in warm water chamber, export the second water temperature signal to controller 50, second water level sensor 28 detects warm water chamber 26 middle water level, at water level lower than sending the second signal of water shortage during lowest water level to controller 50, second heating rod 29 is connected to the output of power transformation circuit 61, the input of power transformation circuit 61 is connected to AC power 60, the power of the second heating rod 29 is lower than the power of the first heating rod 24, ensure that water temperature maintains 40-50 degree Celsius, when the water temperature in warm water chamber 26 is higher than 50 degrees Celsius, second heating rod 29 stops heating, when water temperature in warm water chamber is lower than 40 degrees Celsius, second heating rod 29 starts heating, be connected by the first electromagnetically operated valve 25 between boiling water chamber 21 and warm water chamber 26, when controller 50 receives the second signal of water shortage, open the first electromagnetically operated valve 25, boiling water flow into warm water chamber 26 from boiling water chamber 21, when controller 50 receives the first signal of water shortage, display screen 11 shows lack of water information.Milk powder chamber 30 comprises for the weigh feeder 31 to milk powder measurement, and weigh feeder 31 can adopt the existing device measured powder.Stir chamber 40 is connected with warm water chamber 26 by the second electromagnetically operated valve 41, be connected with the discharging opening of weigh feeder 31 by the 3rd electromagnetically operated valve 42, the top of stir chamber 40 is provided with motor 43, the output shaft of motor 43 is connected with paddle by shaft coupling, and the bottom of stir chamber 40 is connected to the milk outlet 13 on shell 10 by the 4th electromagnetically operated valve 45; Above-mentioned display screen 11, knob 12, first temperature inductor 22, first water level sensor 23, second temperature inductor 27, second water level sensor 28, first electromagnetically operated valve 25, second electromagnetically operated valve 41, the 3rd electromagnetically operated valve 42, the 4th electromagnetically operated valve 45, weigh feeder 31 and motor 43 are connected to controller 50, and such as controller 50 can be the controller that dsp processor, arm processor or single-chip microcomputer etc. have signal processing function.
As shown in Figure 4, the clockwise direction of knob rotating disk is disposed with scale 0,3,6,9,12,15,18,21, representing out milk amount is respectively 0ml, 30ml, 60ml, 90ml, 120ml, 150ml, 180ml, 210ml and 240ml, and wherein 0 scale also represents out milk amount is 240ml.In Fig. 4, the shape of turn-knob is only schematic, and those skilled in the art can be designed to any suitable shape, to realize out the function that milk amount is arranged.
As shown in Figure 5 and Figure 6, another embodiment of the present invention's full-automatic milk-powder brewing equipment is except comprising all parts in above-described embodiment, also comprise: the lithium battery 62 being connected to power transformation circuit 61 output, shell 10 is also provided with the USB interface 63 be connected with lithium battery 62, when needs go out to carry, system power supply can be given by lithium battery 62, water temperature in warm water chamber 26 is maintained 40-50 degree Celsius, when lithium battery 62 electricity is not enough, can be charged by the circuit of vehicle power or other and usb compatible; On shell 10, the below of milk outlet 13 is provided with tank 14, and sink top is installed and slipped through the net 15, and the water capacity of tank 14 is at least 200ml, can not pollute other objects when ensureing that milk overflows; Shell 10 top is also provided with LED, position instruction when using for night; The quantity in milk powder chamber can be multiple, can hold the milk powder of multiple brand, select with the health according to baby; The top of shell 10 is also provided with handle 16, carries when conveniently going out.
As shown in Figure 7, power transformation circuit 100 of the present invention comprises: input port 101, receives input voltage vin; Output port 102, provides output voltage Vo; Upper power switch 103 and lower power switch 104, be coupled in series between input port 101 and reference ground; Output inductor 105, between the coupled in series node being coupled in power switch 103 and lower power switch 104 and output port 102; Output capacitor 106, is coupled between output port 102 and reference ground; Sampling resistor 107, with upper power switch 103 coupled in series; Operational amplifier 108, has first input end, the second input terminal and lead-out terminal, and its first input end and the second input terminal are connected across sampling resistor 107 two ends, its lead-out terminal generation current sampled signal Isen; Feedback component 109, is coupled to output port 102 and receives output voltage Vo, and produces the feedback voltage Vfb of reflection output voltage Vo; Voltage comparator 110, has in-phase input end, inverting input and lead-out terminal, its inverting input threshold level voltage Vth, and its in-phase input end is coupled to feedback component 109 and receives feedback voltage Vfb, and its lead-out terminal produces voltage comparison signal; Error amplifier 111, has in-phase input end, inverting input and lead-out terminal, and its in-phase input end receives reference voltage Vref, and its inverting input is coupled to feedback component 109 and receives feedback voltage Vfb, and its lead-out terminal produces error amplification signal Vc; Clamper 112, is coupled between the lead-out terminal of error amplifier 111 and reference ground; First logic switch 113, there is the first terminal, the second terminal and control terminal, the lead-out terminal that its first terminal is coupled to error amplifier 111 receives error amplification signal Vc, and its control terminal is coupled to the lead-out terminal receiver voltage comparison signal of voltage comparator 110; Second logic switch 114, have the first terminal, the second terminal and control terminal, its first terminal couples current peak signal Ilim, and its control terminal is coupled to the lead-out terminal receiver voltage comparison signal of voltage comparator 110; Current comparator 115, there is in-phase input end, inverting input and lead-out terminal, its in-phase input end is coupled to the lead-out terminal received current sampled signal Isen of operational amplifier 108, its inverting input is coupled to the second terminal of the first logic switch 113 and the second terminal of the second logic switch 114, its lead-out terminal generation current comparison signal; Control and drive circuit 116, be coupled to the lead-out terminal received current comparison signal of current comparator 115, and based on electric current comparison signal, produce double switch drive singal, to control the break-make of upper power switch 103 and lower power switch 104.
Preferably, described power transformation circuit 100 also comprises: the first compensation condenser 117, is coupled between the lead-out terminal of operational amplifier 108 and reference ground.
Preferably, described power transformation circuit 100 also comprises: the second compensation condenser 118, between the lead-out terminal being coupled in error amplifier 111 and inverting input.
Preferably, feedback component 109 comprises and is coupled in series in output port 102 and with reference to the first resistance between ground and the second resistance, wherein feedback voltage Vfb produces at the series connection node place of the first resistance and the second resistance.
Preferably, clamper 112 comprises Zener diode, and has clamping voltage Vz.
Preferably, the first logic switch 113 is high level conducting, and the second logic switch 114 is low level conducting.That is, when feedback voltage Vfb is greater than threshold voltage Vth, voltage comparison signal is high level, now switched on, the second logic switch 114 of the first logic switch 113 is disconnected, and the inverting input of current comparator 115 is received be coupled to the lead-out terminal of error amplifier 111 to receive error amplification signal Vc; When feedback voltage Vfb is less than threshold voltage Vth, voltage comparison signal is low level, and now the first logic switch 113 is disconnected, the second logic switch 114 is switched on, and makes the inverting input received current peak signal Ilim of current comparator 115.
When power transformation circuit 100 normally runs, when upper power switch 103 is switched on, lower power switch 104 is disconnected, input voltage vin is transmitted via sampling resistor 107, upper power switch 103, output inductor 105 and output capacitor 106 and is converted into output voltage Vo.Now inductive current is the electric current flowing through sampling resistor 107.This electric current starts to increase.The inductive current sampled signal Isen that then operational amplifier 108 exports also starts to increase.When it increases to the signal of current comparator 115 inverting input, the electric current comparison signal trigging signal that current comparator 115 exports.Accordingly, the two-way drive singal trigging signal that control and drive circuit 116 export, makes power switch 103 be disconnected, and lower power switch 104 is switched on.
When the load of power transformation circuit 100 is relatively heavier, output voltage Vo is relatively little, then feedback voltage Vfb is also relatively little.Now feedback voltage Vfb is less than threshold voltage Vth, and the voltage comparison signal that voltage comparator 110 exports is low level.Then the first logic switch 113 is disconnected, the second logic switch 114 is switched on, and makes the inverting input received current peak signal Ilim of current comparator 115.Namely under heavy condition, when current sampling signal Isen reaches current peak signal Ilim, the electric current comparison signal trigging signal that current comparator 115 exports, and then upper power switch 103 is disconnected, by the conducting of lower power switch 104 via after control and drive circuit 116.
When the load of power transformation circuit 100 is relatively light, output voltage Vo is relatively large, then feedback voltage Vfb is also relatively large.Now feedback voltage Vfb is greater than threshold voltage Vth, and the voltage comparison signal that voltage comparator 110 exports is high level.Then switched on, the second logic switch 114 of the first logic switch 113 is disconnected, make the inverting input of current comparator 115 receive error amplification signal Vc.Namely under light condition, when current sampling signal Isen reaches error amplification signal Vc, the electric current comparison signal trigging signal that current comparator 115 exports, and then upper power switch 103 is disconnected, by the conducting of lower power switch 104 via after control and drive circuit 116.And error amplification signal Vc is the integration of feedback voltage Vfb and reference voltage Vref difference.This error amplification signal Vc slowly changes along with the change of feedback voltage Vfb.When feedback voltage Vfb slowly increases, error amplification signal Vc also slowly becomes large.When it increases to the clamping voltage Vz of clamper 112, error amplification signal Vc is clamped at clamping voltage Vz place.
Full-automatic milk-powder brewing equipment of the present invention accurately can control the temperature of milk and concentration, has saved the time; And the normal use of going out when carrying can be ensured by additional lithium battery.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. a full-automatic milk-powder brewing equipment, is characterized in that, shell is cylindrical, cover top portion be provided with for display system data display screen and the knob rushing milk amount is set; Enclosure is provided with columniform to water cavity, milk powder chamber and stir chamber;
The described first half giving water cavity is boiling water chamber, Lower Half is warm water chamber, the first temperature inductor, the first water level sensor and the first heating rod is provided with in boiling water chamber, be provided with the second temperature inductor, the second water level sensor and the second heating rod in warm water chamber, be connected by the first electromagnetically operated valve between boiling water chamber and warm water chamber;
Described milk powder chamber comprises for the weigh feeder to milk powder measurement;
Described stir chamber is connected with described warm water chamber by the second electromagnetically operated valve, be connected with the discharging opening of described weigh feeder by the 3rd electromagnetically operated valve, the top of stir chamber is provided with motor, the output shaft of motor is connected with paddle by shaft coupling, and the bottom of stir chamber is connected to the milk outlet on described shell by the 4th electromagnetically operated valve;
Described display screen, knob, the first temperature inductor, the first water level sensor, the second temperature inductor, the second water level sensor, the first electromagnetically operated valve, the second electromagnetically operated valve, the 3rd electromagnetically operated valve, the 4th electromagnetically operated valve, weigh feeder and motor are connected to controller, described first heating rod is connected to AC power, described second heating rod is connected to the output of power transformation circuit, and the input of power transformation circuit is connected to described AC power;
Described power transformation circuit comprises:
Input port, receives input voltage;
Output port, provides output voltage;
Upper power switch and lower power switch, be coupled in series between input port and reference ground;
Output inductor, between the coupled in series node being coupled in power switch and lower power switch and output port;
Output capacitor, is coupled between output port and reference ground;
Sampling resistor, with upper power switch coupled in series;
Operational amplifier, has first input end, the second input terminal and lead-out terminal, and its first input end and the second input terminal are connected across sampling resistor two ends, and its lead-out terminal produces inductive current sampled signal;
Feedback component, is coupled to output port and receives output voltage, and produce the feedback voltage of reflection output voltage;
Voltage comparator, has in-phase input end, inverting input and lead-out terminal, its inverting input threshold level voltage, and its in-phase input end is coupled to feedback component and receives feedback voltage, and its lead-out terminal produces voltage comparison signal;
Error amplifier, has in-phase input end, inverting input and lead-out terminal, and its in-phase input end receives reference voltage, and its inverting input is coupled to feedback component and receives feedback voltage, and its lead-out terminal produces error amplification signal;
Clamper, is coupled between the lead-out terminal of error amplifier and reference ground;
First logic switch, has the first terminal, the second terminal and control terminal, and the lead-out terminal that its first terminal is coupled to error amplifier receives error amplification signal, and its control terminal is coupled to the lead-out terminal receiver voltage comparison signal of voltage comparator;
Second logic switch, have the first terminal, the second terminal and control terminal, its first terminal couples current peak signal, and its control terminal is coupled to the lead-out terminal receiver voltage comparison signal of voltage comparator;
Current comparator, there is in-phase input end, inverting input and lead-out terminal, its in-phase input end is coupled to the lead-out terminal received current sampled signal of operational amplifier, its inverting input is coupled to the second terminal of the first logic switch and the second terminal of the second logic switch, its lead-out terminal generation current comparison signal;
Control and drive circuit, be coupled to the lead-out terminal received current comparison signal of current comparator, and based on electric current comparison signal, produce double switch drive singal, to control the break-make of upper power switch and lower power switch;
Described feedback component comprises and is coupled in series in output port and with reference to the first resistance between ground and the second resistance, wherein feedback voltage produces at the coupled in series Nodes of the first resistance and the second resistance;
Described first logic switch is high level conducting, and the second logic switch is low level conducting;
Described clamper comprises Zener diode;
Described synchronous buck circuit comprises further: the first compensation condenser, is coupled between the lead-out terminal of operational amplifier and reference ground;
Described synchronous buck circuit comprises further: the second compensation condenser, is coupled between the lead-out terminal of error amplifier and inverting input.
2. full-automatic milk-powder brewing equipment as claimed in claim 1, is characterized in that, also comprise the lithium battery being connected to described power transformation circuit output.
3. full-automatic milk-powder brewing equipment as claimed in claim 2, is characterized in that, described shell is also provided with the USB interface be connected with described lithium battery.
4. full-automatic milk-powder brewing equipment as claimed in claim 1, it is characterized in that, described controller is dsp processor.
5. full-automatic milk-powder brewing equipment as claimed in claim 1, it is characterized in that, the below of described shell milk outlet is provided with tank, and sink top is installed and slipped through the net.
6. full-automatic milk-powder brewing equipment as claimed in claim 1, it is characterized in that, described cover top portion is also provided with LED.
7. full-automatic milk-powder brewing equipment as claimed in claim 1, it is characterized in that, the quantity in described milk powder chamber is multiple.
8. full-automatic milk-powder brewing equipment as claimed in claim 1, is characterized in that, the rotating disk clockwise direction of described knob is disposed with scale 0,3,6,9,12,15,18,21.
9. full-automatic milk-powder brewing equipment as claimed in claim 1, it is characterized in that, the top of described shell is also provided with handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510964198.XA CN105490546A (en) | 2015-12-20 | 2015-12-20 | Full automatic milk powder brewing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510964198.XA CN105490546A (en) | 2015-12-20 | 2015-12-20 | Full automatic milk powder brewing device |
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| CN105490546A true CN105490546A (en) | 2016-04-13 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101242801A (en) * | 2005-08-12 | 2008-08-13 | 河政逵 | Milk powder concocting device for suckling |
| CN103036428A (en) * | 2012-12-12 | 2013-04-10 | 青岛联盟电子仪器有限公司 | Peak current gradient synchronous step-down circuit |
| CN203709835U (en) * | 2012-10-22 | 2014-07-16 | 彼耶纳有限公司 | Milk powder distributor |
| CN104026984A (en) * | 2014-05-27 | 2014-09-10 | 葛艳 | Automatic milk powder brewing machine |
| WO2015142273A1 (en) * | 2014-03-19 | 2015-09-24 | Jprt Förvaltning Ab | Automated apparatus and method for preparing therein a nutritious drink of powder and water |
-
2015
- 2015-12-20 CN CN201510964198.XA patent/CN105490546A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101242801A (en) * | 2005-08-12 | 2008-08-13 | 河政逵 | Milk powder concocting device for suckling |
| CN203709835U (en) * | 2012-10-22 | 2014-07-16 | 彼耶纳有限公司 | Milk powder distributor |
| CN103036428A (en) * | 2012-12-12 | 2013-04-10 | 青岛联盟电子仪器有限公司 | Peak current gradient synchronous step-down circuit |
| WO2015142273A1 (en) * | 2014-03-19 | 2015-09-24 | Jprt Förvaltning Ab | Automated apparatus and method for preparing therein a nutritious drink of powder and water |
| CN104026984A (en) * | 2014-05-27 | 2014-09-10 | 葛艳 | Automatic milk powder brewing machine |
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