CN101374428A - Supercooling apparatus and its method - Google Patents

Supercooling apparatus and its method Download PDF

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Publication number
CN101374428A
CN101374428A CNA2006800528001A CN200680052800A CN101374428A CN 101374428 A CN101374428 A CN 101374428A CN A2006800528001 A CNA2006800528001 A CN A2006800528001A CN 200680052800 A CN200680052800 A CN 200680052800A CN 101374428 A CN101374428 A CN 101374428A
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China
Prior art keywords
contents
energy
supercooling
memory space
temperature
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CNA2006800528001A
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Chinese (zh)
Inventor
金洙凊
辛钟玟
李守源
金铁焕
权永喆
孙久永
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LG Electronics Inc
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LG Electronics Inc
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Publication of CN101374428A publication Critical patent/CN101374428A/en
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    • EFIXED CONSTRUCTIONS
    • E06DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06BFIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B1/00Border constructions of openings in walls, floors, or ceilings; Frames to be rigidly mounted in such openings
    • E06B1/56Fastening frames to the border of openings or to similar contiguous frames
    • E06B1/60Fastening frames to the border of openings or to similar contiguous frames by mechanical means, e.g. anchoring means
    • E06B1/6046Clamping means acting perpendicular to the wall opening; Fastening frames by tightening or drawing them against a surface parallel to the opening

Abstract

The present invention discloses a refrigerator which can keep the contents in a non-frozen state by an electric field generated by a radio frequency voltage. The refrigerator includes a setting unit for setting a amplitude and frequency cf a voltage, a generating unit for generating an electric field according to the voltage having the set amplitude and frequency, and applying the electric field to a storing space for storing the contents, and a freezing cycle for cooling the storing space. The contents are kept in a non-frozen state below a phase transition temperature.

Description

Apparatus for supercooling and method thereof
Technical field
The present invention relates to a kind of apparatus for supercooling and method, more specifically, relate to a kind of can be by the control energy with stable chronically apparatus for supercooling and the method that remains under the supercooling state of contents.
Background technology
The overcooled meaning is that the fusion object or the solid that are cooled under poised state below the phase transition temperature do not change.Every kind of material all has stable status under each temperature.If temperature changes lentamente, then the element of material is along with variations in temperature all keeps stable state under each temperature.Yet if temperature sharply changes, element can't become stable state under each temperature.Therefore, the element of material keeps the stable state under the initial temperature, and perhaps some elements fail to become the state under the final temperature.
For example, when water cooled off lentamente, below 0 ℃, it did not temporarily freeze.Yet when water was carried out supercooling, it had a kind of quasi-stationary state.Even because a slight stimulation also can destroy this unsettled poised state, so water tends to become more stable status.That is to say that if sub-fraction liquid is put into this cooled liquid, if perhaps cooled liquid is shaken suddenly, this liquid will freeze immediately, make the temperature of this liquid to reach the freezing point.Therefore, this liquid keeps stable poised state under this temperature.
Usually, to refrigerating such as foods such as vegetables, fruit, meat and beverages or freezing with fresh-keeping.These foods contain the liquid component such as water.If liquid component is cooled to below the phase transition temperature, they can change later solid constituent at the fixed time into.
Fig. 1 shows the curve map that undergoes phase transition under the cooling effect.As shown in Figure 1, when the maintenance temperature of refrigeration machine remained on approximately-7 ℃, distilled water kept supercooling state 1 to 5 hours under 1 atmospheric pressure.Suddenly undergoing phase transition after 5 hours, is phase transition temperature thereby make water temperature be elevated to 0 ℃.
As mentioned above, the contents such as water can remain under the supercooling state short time.Yet, food must be remained on for a long time under the supercooling state with one section of food storage more over a long time.
Summary of the invention
Technical problem
The objective of the invention is to address the above problem.An object of the present invention is to provide a kind of apparatus for supercooling and method, this apparatus for supercooling and method can stably remain on the supercooling state with contents for a long time.
Another object of the present invention provides a kind of apparatus for supercooling and method, and this apparatus for supercooling and method can stably remain on the supercooling state with contents with low temperature.
The present invention also has another purpose to provide a kind of apparatus for supercooling and method, and this apparatus for supercooling and method can not frozen temperature by what contents were set or controlled to the size of regulating energy.
The present invention also has another purpose to provide a kind of apparatus for supercooling and method, size that this apparatus for supercooling and method can be by utilizing energy and contents do not freeze that relation between the temperature is regulated and setting applies energy.
The present invention also has another purpose to provide a kind of apparatus for supercooling and method, and this apparatus for supercooling and method can be by allowing the user select the temperature of not freezing of contents to carry out polytype pattern of not freezing.
The present invention also has another purpose to provide a kind of apparatus for supercooling and method, and this apparatus for supercooling and method can be controlled the size that applies energy or degree of freezing not by regulating cooling degree.
The present invention also has another purpose to provide a kind of apparatus for supercooling and method, and this apparatus for supercooling and method can be used to form the time of implementation of not freezing pattern of not freezing state by control and minimize this and do not freeze power consumption in the pattern.
The present invention also has another purpose to provide a kind of apparatus for supercooling and method, and this apparatus for supercooling and method can keep not freezing state and minimize this not freezing power consumption in the state.
Technical scheme
In order to realize above-mentioned purpose of the present invention, a kind of apparatus for supercooling is provided, this cooling device comprises: the device that is used for extracting from contents energy; Be used for by supply be less than that the hydrone that the energy that extracts energy causes contents is rotated, the device of vibration and at least a motion of translation, make contents below phase transition temperature, keep liquid thus.
Preferably, the device of described initiation campaign applies electric field to contents.
Preferably, at least one sets energize to the device of described initiation campaign in voltage, frequency and the electric current by changing.
Preferably, the energy that is extracted depends on the difference between the Current Temperatures of chilling temperature that contents are applied and contents.
Preferably, the energy that is extracted depends on the amount of contents.
According to a further aspect of the invention, provide a kind of supercooling method, this method comprises the steps: to set the energy that extracts from contents; Extract the energy that sets from contents; The hydrone that the energy that is less than the energy that sets by supply causes contents is rotated, at least a motion in vibration and the translation, and above-mentioned steps is carried out in order or carried out simultaneously, makes contents keep liquid state thus below phase transition temperature.
According to another aspect of the invention, a kind of supercooling method is provided, this method comprises the steps: the contents energize; Extraction is more than the energy of institute's energize, and the hydrone that causes contents is rotated, at least a motion in vibration and the translation, makes contents keep liquid state thus below phase transition temperature.
According to another aspect of the invention, a kind of supercooling method is provided, this method comprises the steps: the memory space that is used to store contents is applied energy; And do not freeze temperature according to what the size of applying energy was set memory space or contents.
According to another aspect of the invention, a kind of supercooling method is provided, this method comprises the steps: to read the not degree of freezing of memory space or contents; And according to this not degree of freezing set the size apply energy.
According to another aspect of the invention, a kind of supercooling method is provided, this method comprises the steps: memory space or the contents that are stored in the memory space are cooled off; And pattern is not frozen in execution before the phase transition temperature of contents.
According to another aspect of the invention, a kind of supercooling method is provided, this method comprises the steps: memory space or one section setting-up time of contents cooling; And memory space or contents are carried out do not freeze pattern.
According to another aspect of the invention, a kind of supercooling method is provided, this method comprises carries out the step do not freeze pattern to memory space or the contents that are stored in the memory space, and carrying out this step of not freezing pattern is to be interrupted to carry out.
According to another aspect of the invention, a kind of supercooling method is provided, this method comprises the steps: to carry out does not freeze pattern; Check the degree of carrying out of not freezing state; And the intensity of not freezing pattern according to result's control of described inspection step.
Description of drawings
To understand the present invention better with reference to accompanying drawing, these accompanying drawings only provide by way of example, therefore do not limit the present invention, wherein:
Fig. 1 shows the curve map that undergoes phase transition under the cooling effect;
Fig. 2 to Fig. 4 is the view that illustrates according to the principle of apparatus for supercooling of the present invention;
Fig. 5 is the block diagram that illustrates according to apparatus for supercooling of the present invention;
Fig. 6 and Fig. 7 are the structure charts that illustrates according to the example of apparatus for supercooling of the present invention;
Fig. 8 and Fig. 9 are presented at according to carrying out overcooled structure chart and curve map in the apparatus for supercooling of the present invention;
Figure 10 and Figure 11 are the curve maps that shows according to correlation between power in the apparatus for supercooling of simplification of the present invention and the supercooling temperature.
Figure 12 is the curve map that shows according to the relation between electric-field intensity, maintenance temperature and the supercooling temperature in the supercooling method of the present invention;
Figure 13 is the flow chart that shows according to the supercooling method of first embodiment of the invention;
Figure 14 is the flow chart that shows according to the supercooling method of second embodiment of the invention;
Figure 15 and 16 is the flow charts and the control curve map that causes that show according to the supercooling method of third embodiment of the invention;
Figure 17 and 18 is the flow charts and the control curve map that causes that show according to the supercooling method of four embodiment of the invention;
Figure 19 is the control curve map that shows according to the supercooling method of fifth embodiment of the invention; And
Figure 20 is the control curve map that shows according to the supercooling method of sixth embodiment of the invention.
The specific embodiment
Now with reference to accompanying drawing apparatus for supercooling according to the present invention and method are elaborated.
Fig. 2 to 4 is the views that illustrate according to the principle of apparatus for supercooling of the present invention.
Fig. 2 shows is the process of extracting energy Q1 in the aqueous water from the storage space S that is stored in shell 1.From water, extract energy Q1, thereby with water cooling.For example, as shown in Figure 1, when cooling was carried out under approximately-7 ℃, water temperature Cw and the difference between the cooling maintenance temperature Cr before energy Q1 and the cooling were proportional.Energy Q1 also is subjected to the specific heat and the quality influence of contents.For convenience of explanation, suppose that the specific heat of contents among Fig. 2 to 4 is identical with quality.Therefore, in Fig. 2 to 4, energy is described with temperature.Increase along with extracting energy Q1, the motion between the hydrone (for example, rotation, vibration, translation etc.) weakens and the connection reinforcement of hydrogen.Therefore, all undergo phase transition at any time as shown in Figure 1.
Fig. 3 shows is energize Q2 with the process of the described motion that causes the contents hydrone.When the motion between the hydrone came to life because of the supply of energy Q2, the motoricity between the hydrone was relatively greater than the connection of hydrogen.As a result, can not undergo phase transition.
What Fig. 4 showed is the process of extracting energy Q1 and energize Q2.As shown in Figure 1, by extracting the process of energy Q1, it is phase transition temperature (1 atmospheric pressure) that the measurement temperature C of water is reduced to 0 ℃, is reduced to-7 ℃ then.In cooling procedure,, be used for water is remained on liquid state below the phase transition temperature to water energize Q2.Here, even the process of energize Q2 and the process of extracting energy Q1 are carried out the energy source that they also must use be independent of each other each other simultaneously.For example, if these two processes are used heat energy in an identical manner, they can interact.In this case, then can not be applied to the present invention.And energy Q2 must produce from the energy source of the described motion that influences hydrone.
Important factor is to supply with the size of the energy Q2 of feedwater.In the starting stage, the energy Q1 of extraction can keep the difference between the temperature Cr to calculate by water temperature Cw and cooling.Yet, owing to water along with the time cools off, so the energy Q1 that extracts can be the measurement temperature of water and the difference between the cooling maintenance temperature Cr by Current Temperatures C, perhaps the difference between the measurement temperature Cm in Current Temperatures C and the shell 1 residing memory space is calculated.Energy Q2 must be equal to or less than energy Q1, makes water temperature C to equal or a little higher than cooling maintenance temperature Cr or internal measurement temperature Cm.
When the size of internal measurement temperature Cm reduction and energy Q1 in the cooling procedure changed, energize Q2 also changed.Therefore, water remains on the supercooling state under the specified temp below the phase transition temperature.
If the quality of contents changes under identical condition, the size of energy also must change.
So, must determine energize Q2 according to the energy Q1 that from contents, extracts, perhaps must determine to extract energy Q1 according to energize Q2.Here, in order to activate the described motion of hydrone in the contents, energize Q2 must be equal to or less than and extract energy Q1.
Fig. 5 is the block diagram that illustrates according to apparatus for supercooling of the present invention, and Fig. 6 and 7 is the structure charts that illustrate according to apparatus for supercooling example of the present invention.
Apparatus for supercooling 100 comprises: load-sensing unit 20, the contents (not shown) state that it is used for the state of sensing memory space A or B and is stored in memory space A or B; Be used to cool off the refrigerating circulation system 30 of memory space A or B; Voltage generation unit 40, it is used to produce voltage so that memory space A or B are applied electric field; Receive described voltage and produce the electrode unit 50 of described electric field; Be used for the unlatching of sensing door 120 and closed door sensing cell 60; Input block 70, it makes the user can import cooling degree, carries out supercooling pattern etc.; Be used to show the display unit 80 of apparatus for supercooling 100 running statuses; With microcomputer 90, it is used to control the freezing of apparatus for supercooling 100 or refrigeration and carries out the supercooling pattern.Be necessary to install the power supply unit (not shown) so that said elements is powered.Yet power supply unit is known those of ordinary skills, so omit its explanation.
Particularly, load-sensing unit 20 sensings or store memory space A or the state of B and the state that is stored in the contents among memory space A or the B, and sensing result is sent to microcomputer 90.For example, load-sensing unit 20 can be the thermometer of the temperature of capacity (being the state of memory space A or the B) information that is used to store memory space A or B or sensing memory space A or B or contents, perhaps can be hardometer, ammeter, voltmeter, balance, optical pickocff (or laser sensor) or pressure sensor, whether be stored among memory space A or the B to judge contents.Especially, load-sensing unit 20 can be ammeter or voltmeter.Electric field applies resistor at memory space A or B is vacant has different resistance values when being stored in memory space A with B with contents.So, can check whether store contents by described different resistance value.Microcomputer 90 bases are confirmed the amount and the water content of contents from the resistance value of load-sensing unit 20, and distinguish the kind of the contents with this water content.
Cooling means according to contents is divided into indirect cooling and directly cooling with refrigerating circulation system 30.Fig. 6 shows a kind of indirect cooling type refrigeration machine, and Fig. 7 shows a kind of direct cooling type refrigeration machine, after a while it is elaborated.
Voltage generation unit 40 produces alternating voltage according to predetermined amplitude and frequency.Voltage generation unit 40 by changing voltage amplitude and at least one in the frequency of voltage produce alternating voltage.Especially, the alternating voltage that voltage generation unit 40 will produce according to the setting value (voltage amplitude, electric voltage frequency etc.) from microcomputer 90 is applied to electrode unit 50, thereby the electric field that produces can be applied to memory space A or B.According to the present invention, voltage generation unit 40 can change voltage amplitude by setting described frequency changeably between 500V and 15KV.And, voltage generation unit 40 1 in the radio-frequency region of 500KHz setting voltage frequency changeably.
Electrode unit 50 will be converted into electric field from the alternating voltage of voltage generation unit 40, and this electric field is applied to memory space A or B.Usually, electrode unit 50 is plate or leads of being made by copper or platinum.
Because electrode unit 50 is applied to the electric field of memory space A or B or contents and derives from the radio frequency alternating voltage, so the polarity of electric field changes according to frequency.Under electric field action, the hydrone that contains oxygen with polarity and have the hydrogen of positive polarity vibrates continuously, rotation and translation, thereby keeps liquid and non-crystallizable below phase transition temperature.
Door sensing cell 60 is by opening the operation that the door 120 that is used for open and close memory space A or B stops voltage generation unit 40.Door sensing cell 60 can be notified to the order of opening the door microcomputer 90 with the execution shut-down operation, or by making the external source short circuit that is applied on the voltage generation unit 40 stop voltage generation unit 40.
Input block 70 allows the user can import supercooling mode instruction at memory space A or B or contents, and also can import at temperature freezing and refrigeration control and set, and to the selection of the COS (flake ice, water etc.) of distributor.And, contents information such as kind that the user can be by input block 70 input such as contents and amount.Input block 70 can be bar code reader or radio-frequency identification reader, so that described contents information is offered microcomputer 90.Input block 70 makes the user can import or select supercooling temperature (being used to keep the temperature of supercooling state), and this supercooling temperature is the supercooling degree of memory space A or B or contents.
Display unit 80 mainly shows the COSs of cryogenic temperature, cryogenic temperature and distributors, also shows the supercooling pattern of current execution in addition.
Freezing and the refrigeration of microcomputer 90 major controls, and carry out according to supercooling pattern of the present invention.
Remain under the situation of supercooling state at memory space A or B or contents, microcomputer 90 stores the size that is applied to the energy Q1 on memory space A or B or the contents, the size of extracting energy Q2 and the relation information between the chilling temperature.Therefore, microcomputer 90 can carry out control operation, for example sets and apply energy Q1 and Q2 according to the supercooling temperature, perhaps carries out the calculating of energy Q1 and Q2 size and the calculating of supercooling temperature.Here, energy Q2 can be produced by various energy sources.According to the present invention, energy Q2 is an electric field energy.Because most of contents contain large quantity of moisture, microcomputer 90 by load-sensing unit 20 sensing quality, and by load-sensing unit 20 operating temperature information, extracts energy Q1 thereby calculate by specific heat of water is made as specific heat.For example, when applying electric field energy, microcomputer 90 calculates energize Q2 by the function of electric current, voltage and frequency, and this is to understand easily for those of ordinary skills.
Microcomputer 90 obtains the state of memory space A or B or contents from input block 70 or load-sensing unit 20, and produces and to have and the information of being obtained or the alternating voltage of corresponding frequency of load and amplitude, does not freeze pattern thereby carry out artificial intelligence.
The microcomputer 90 of carrying out the supercooling pattern can be set or change the supercooling temperature that is used to carry out the supercooling pattern.Microcomputer 90 can be carried out setting or change operation according to size and the relation between the supercooling temperature of energy Q1 that discusses later and Q2.For this reason, microcomputer 90 is regulated the size of the energy Q2 that electric field produced that electrode unit 50 applies by control voltage generation unit 40.The size of energy Q2 can be regulated by control voltage amplitude (or current amplitude) and frequency.The size of energy can be calculated from the correlation between voltage, electric current and the frequency.It is conspicuous to those skilled in the art that energy is calculated, so do not do explanation.
Effective control of the power consumption of apparatus for supercooling 100 is carried out as reduced to microcomputer 90 under energy-saving mode, and keep by the operation of not freezing operating unit that control voltage generation unit 40 and electrode unit 50 constitute and not freeze pattern.After a while this control method is described.
Fig. 6 and 7 is the structure charts that illustrate according to the example of apparatus for supercooling of the present invention.In these examples, the present invention is applied to refrigeration machine.Fig. 6 is the sectional view that indirect cooled refrigeration machine is shown, and Fig. 7 is the sectional view that direct cooled refrigeration machine is shown.
The cooled refrigeration machine comprises shell 110 indirectly, and this shell 110 has a unlimited surface, and comprises memory space A and the dividing plate 130 that memory space A is partly separated in inside, and the door 120 that is used for the described open surfaces of open and close shell 110.The refrigerating circulation system 30 of cooled refrigeration machine comprises indirectly: the compressor 32 that is used for compressed refrigerant; Be used to produce the evaporimeter 33 of the cooling air (shown in the arrow) that cools off memory space A or contents; The fan 34 that is used to force described cooling air to flow; Memory space A is supplied with the suction line 36 of described cooling air; And, be used to guide described cooling air to pass the discharge pipe 38 that memory space A arrives evaporimeter 33.Though do not illustrate, refrigerating circulation system 30 further comprises condenser, drier and expansion cell.
Between shell 110 outer surface, be formed with electrode unit 50a and 50b in the face of inner surface 112a, the 112c of memory space A and shell 110.Electrode unit 50a and the 50b installation that faces with each other is used for whole memory space A is applied electric field.The end of memory space A and electrode unit 50a and 50b separates with predetermined space along inside or the center position of electrode unit 50a and 50b, so that memory space A or contents are applied uniform electric field.
Suction line 36 and discharge pipe 38 are formed on the inner surface 112b of shell 110.Inner surface 112a, 112b and the 112c of shell 110 are made by hydrophobic material, can not reduce because of the surface tension of water to freeze like this during the supercooling pattern.The outer surface of shell 110 and inner surface 112a, 112b and 112c are made by insulating materials, thereby prevent that the user is subjected to the electric shock from electrode unit 50a and 50b, and prevent that contents from electrically contacting by inner surface 112a, 112b and 112c and electrode unit 50a and 50b.
The shell 110 of the direct cooled refrigeration machine of Fig. 7, door are 120 identical with the indirect cooled refrigeration machine of Fig. 6 with dividing plate 130.Except suction line 36 and discharge pipe 38, inner surface 114a, the 114b of shell 110 is identical with inner surface 112a, 112b and the 112c of shell 110 with 114c.
The refrigerating circulation system 30 of the direct cooled refrigerator of Fig. 7 comprises the compressor 32 that is used for compressed refrigerant, with evaporimeter 39, this evaporimeter 39 is used to make the cold-producing medium evaporation around inner surface 114a, 114b and 114c place that memory space B is installed in close shell 110 in the shell 110.Directly cooled refrigerating circulation system 30 comprises condenser (not shown) and expansion valve (not shown).
Especially, electrode unit 50a and 50d are embedded between evaporimeter 39 and the shell 110, will cool off air bound to prevent evaporimeter 39.
Fig. 8 and 9 shows according to overcooled structure chart and curve map in the apparatus for supercooling of the present invention.
What Fig. 8 showed is test structure and the condition of Fig. 9.With reference to Fig. 8, in shell 111, be formed with storage space S 1, in storage space S 1, accommodate 0.1 liter of distilled water, electrode 50e and 50f are embedded in the sidewall of shell 111, to be arranged in storage space S 1 symmetrically.Electrode 50e and 50f are in the face of surperficial wide than storage space S 1 of the electrode surface of storage space S 1.Spacing between electrode 50e and the 50f is 20mm.Shell 111 is made by acryhic material.Shell 111 keeps in the memory space (refrigerating plant that does not have other electric field generator except electrode 50e and 50f) of evenly supplying with the cooling air and cools off.
Here, microcomputer 90 makes 40 pairs of electrode units 50 of voltage generation unit apply the alternating voltage of 0.91 kilovolt (6.76 milliamperes) and 20 kilo hertzs, and the temperature of memory space approximately is-7 ℃.Shown in the supercooling curve map of Fig. 9, keep supercooling owing to do not freeze refrigeration machine 100 down being lower than-6.5 ℃ of phase transition temperature, so it keeps the state that do not freeze of water more than 50 hours.
According to the inventor's result of the test, applying of electric field demonstrates following Disinfection Effect.
The inventor studies in the survival rate before and after the electric field treatment the giardia lamblia stiles, the flagellate that cause diarrhoea in humans.408 giardia lamblia stiles under no nutritional status, have been used.The inventor studies the survival rate that giardia lamblia stiles under electric field and the no electric field situation is arranged.When not using electric field, 396 giardia lamblia stiles survivals are arranged, that is to say that survival rate is 96.6%.This means that giardia lamblia stiles can not eliminate naturally.On the contrary, when using electric field, there is not the giardia lamblia stiles survival.Above-mentioned result of the test obtains under no nutritional status.Yet, under nutritional status, promptly under the food storage state in the refrigeration machine, be expected to obtain similar result.As mentioned above, electric field is used for eliminating effectively such as giardia lamblia stiles etc. and can causes rotten microorganism.
Figure 10 and 11 shows according to power in the apparatus for supercooling of simplification of the present invention and does not freeze the curve map of correlation between the temperature.Figure 10 and 11 is the application to the test structure of Fig. 8.Maintenance temperature (control temperature) in the shell 111 residing memory spaces, promptly internal temperature is fixed as-6 ℃.Here, microcomputer 90 is with a large amount of electric energy settings and be applied on the voltage generation unit 40, and the variation of temperature of not freezing that causes is measured.That is to say that it is constant extracting energy Q1, and energize Q2 is variable.
Figure 10 is the curve map that does not freeze temperature that shows the water of the electric energy of having supplied with different amounts.As shown in figure 10, on the datum line 0 that is not supplied to electric energy, by cooling water is remained on and not freeze state to-5 ℃, change to the state of freezing 3 hours mutually from the state of cooling.
At the first energy line I (1.38 watts), because the size of energy Q2 that applies feedwater is than extracting the big or small much bigger of energy Q1, even under phase transition temperature (under 1 atmospheric pressure 0 ℃) water is cooled off, water also remains on almost 0 ℃ and can supercooling.
At the second energy line II (0.98 watt), water remains on the supercooling state, and the scope of supercooling temperature is-3 to-3.5 ℃.
At the 3rd energy line III (0.91 watt), water remains on the supercooling state, and the scope of supercooling temperature is-4 to-5 ℃.
At the 4th energy line IV (0.62 watt), water remains on the supercooling state, and the scope of supercooling temperature is-5.5 to-5.8 ℃.
At the 5th energy line V (0.36 watt), water is icing (phase transformation) under the situation that does not reach the supercooling state.
Figure 11 is the curve map that shows correlation between the first energy line I to the, the five energy line V of Figure 10.As shown in figure 11, under cooling air supply condition, apply the size of energy Q2 of feedwater and the supercooling temperature of water and have proportional relation.That is to say that when the energy Q2 that imposes on contents was big, the supercooling temperature rose, and when the energy Q2 that impose on contents too hour, the supercooling temperature descends.Yet if energy Q2 is too little, it can't cause the motion of hydrone and regulate the supercooling state, thereby the result of the 5th energy line V occur.
In this test, determine the supercooling temperature according to the size of the energy that keeps temperature (temperature in the door, internal temperature) to be applied when being-6 ℃.If keep temperature to change, change if promptly extract the size of energy Q1, the size that then applies energy Q2 must change.When keeping temperature constant, simple correlation information between the size of microcomputer 90 storage power Q1 and Q2 and the supercooling temperature.Under the situation of the maintenance temperature being regulated or changing, microcomputer 90 must store the size of the energy Q1, the Q2 that have considered the maintenance variations in temperature and the correlation information between the supercooling temperature.
Figure 12 is presented at according in the supercooling method of the present invention, the curve map that concerns between electric-field intensity, maintenance temperature and the supercooling temperature.
As shown in figure 12, calculate the correlation of the supercooling temperature Cs of contents between electric-field intensity (energize Q2) and maintenance temperature Cm (extracting energy Q1).
For example, under the maintenance temperature of the electric-field intensity of W1 and Cm, when contents are stabilized in supercooling temperature Cs, keep temperature Cm if keep temperature Cm to drop to, increase if promptly extract energy Q1, then supercooling temperature Cs becomes supercooling temperature Cs.Cs<Cs makes contents stable.As another example, keep temperature Cm if keep temperature Cm to be raised to, reduce if promptly extract energy Q1, then supercooling temperature Cs becomes supercooling temperature Cs.Cs〉Cs makes contents stable.
Extracting energy Q1 and energize Q2 can adjust according to Figure 10,11 and 12 relation, thus the supercooling temperature Cs of control contents.
Figure 13 is the flow chart that shows according to the supercooling method of first embodiment of the invention.
Specifically, in S71, whether microcomputer 90 decision users can select not freeze degree by input block 70.If microcomputer 90 enters S72, if not, microcomputer 90 enters S73.
In S72, microcomputer 90 is set according to the selection of importing in advance by input block 70 or the user imports and is not frozen degree.The not input of degree of freezing or select to comprise specified temp (for example ,-6 ℃ ,-8 ℃), or the height of displays temperature degree, it is low to neutralize.
In S73, because specific device or the service that the user can be imported or select not freeze degree is not provided, be the not degree of fixing of freezing so microcomputer 90 reads.For example, degree of freezing can not be-6 ℃ or-8 ℃.
In S74, can microcomputer 90 decision regulate cooling degree by the refrigerating circulation system 30 that control is used to cool off memory space A or B or contents.When refrigerating circulation system 30 forms when only cooling off memory space A as shown in Figs. 4a and 4b or B, step S74 is unnecessary.Yet, being controlled under the situation of constant cooling degree (control temperature, internal temperature etc.) in the vegetable compartment or the meat chamber of refrigeration machine, cooling degree is uncontrollable.Therefore, the method for setting energy size changes.In this case, above-mentioned steps S74 is necessary.If cooling degree can not pass through mechanical means or software control, microcomputer 90 enters S75 so, if cooling degree is controlled, microcomputer 90 enters S77 so.
In S75, microcomputer 90 is set the energy size that imposes on memory space A or B or contents according to that set or fixing not degree of freezing.When cooling degree was constant, microcomputer 90 can be only set the energy size by the relation between degree of freezing and the energy size not.
In S76, as mentioned above because cooling degree is not controlled or variable, so microcomputer 90 is with constant cooling degree cooling memory space A or B or contents.
In S77, microcomputer 90 is set cooling degree according to that set or fixing not degree of freezing, and cools off by refrigerating circulation system 30.For example, if degree of freezing is not-8 ℃, the chilling temperature of memory space A or B or contents must be set at and be lower than at least-8 ℃.Under identical not degree of freezing, if current chilling temperature is-10 ℃, chilling temperature can be set at slightly and be lower than-8 ℃, thereby reduces power consumption by cooling.
In S78, microcomputer 90 is set the energy size according to that set or fixing not degree of freezing.Here, must consider the chilling temperature in S77, set.
In S79, microcomputer 90 imposes on memory space A or B or contents with the energy of setting among S75 or the S78, thereby implements not freeze storage.
In this embodiment, S77 and S78 can carry out simultaneously.That is to say that microcomputer 90 bases not degree of freezing are set cooling degree and energy size simultaneously.In assignment procedure, microcomputer 90 can take into account the relation between cooling degree and the energy size.
Figure 14 is the flow chart that shows according to the supercooling method of second embodiment of the invention.
What second embodiment showed is when the energy constant magnitude, the control method when promptly microcomputer 90 is can be by the electric-field intensity of voltage generation unit 40 generations constant.
Specifically, in S81, microcomputer 90 imposes on memory space A or B or contents with default fixed energies by the operating unit that do not freeze that comprises voltage generation unit 40 and electrode unit 50.That is to say that microcomputer 90 can not be controlled electric-field intensity.
In S82, microcomputer 90 determines in the mode identical with S71 among Figure 13 whether the user can select not freeze degree.
In S83, microcomputer 90 is set not degree of freezing that select or input.
In S84, for the not degree of freezing that obtains to set by fixing energy, microcomputer 90 is set cooling degree by refrigerating circulation system 30, and cooling degree cooling memory space A or B or contents to set.That is to say, under the fixed energies state, increase cooling degree (reducing the control temperature) reducing temperature, and reduce cooling degree (the control temperature raises) with the rising temperature by degree of freezing not.
In S85, microcomputer 90 reads fixing not degree of freezing.
In S86, in order to obtain fixing not degree of freezing by fixing energy size, microcomputer 90 is by constant cooling degree cooling memory space A or B or contents.
Figure 15 shows is flow chart according to the supercooling method of third embodiment of the invention.The supercooling method (energy-saving mode) of Figure 15 is set the starting point of not freezing pattern according to the temperature of memory space A or B or contents.
Specifically, in S91, microcomputer 90 cools off memory space A or B by control refrigerating circulation system 30.Because also carrying out, microcomputer 90 do not freeze pattern, so microcomputer 90 slowly cools off memory space A or B or contents by the device that the pressure cooling air of closing such as the fan 34 of the refrigerating circulation system 30 of indirect cooled refrigeration machine flows.
In S92, microcomputer 90 is by the temperature T of temperature sensor senses memory space A or B or contents, and this temperature sensor is load-sensing unit 20.
In S93, microcomputer 90 is compared the temperature T that senses with the phase transition temperature T0 of contents.If the difference of temperature T that senses and phase transition temperature T0 is in the temperature of setting (a), then microcomputer enters S94.If not, 90 of microcomputers enter S92.In this step S93, contents reach phase transition temperature T0 up to the temperature T that senses and just undergo phase transition.So microcomputer 90 needn't be carried out and not freeze pattern.Yet the temperature of memory space A or B or contents can sharply descend by the cooling of refrigerating circulation system 30.Therefore, need only this difference in the temperature of setting (a), microcomputer 90 just can not be carried out and not freeze pattern, thereby reduces power consumption.Because volume minimum in the time of 4 ℃ of water is so the motion between the hydrone may change.Preferably, the scope of the temperature of setting (a) is 0 to 4 ℃.
In S94, microcomputer 90 comprises that by control the operating unit that do not freeze of voltage generation unit 40 and electrode unit 50 begins to carry out and do not freeze pattern.Here, microcomputer 90 evenly cools off memory space A and contents by the mobile device of pressure cooling air of the fan 34 of operation such as refrigerating circulation system 30.
In S95, microcomputer 90 reduces the cooling velocity of refrigerating circulation system 30, does not freeze pattern by not freezing the operating unit execution.Sharply do not change if do not freeze during the pattern memory space A or B or the outer temperature of contents, can remove and not freeze pattern, undergo phase transition freezing state simultaneously.Therefore, microcomputer 90 reduces the rapid variation that cooling velocity stops temperature by the cooling Power of control compressor 32, does not freeze pattern thereby stably carry out.
In S96, whether microcomputer 90 decision memory space A or B or contents have been stabilized in and have not frozen state.Microcomputer 90 can be based on not freezing the stabilization time of state under the load effect, or memory space A or B or contents are stabilized in do not freeze average time that state spends come to determine stability for information about.Do not freeze in stable condition after, microcomputer 90 enters S97.
In S97, microcomputer 90 reduces the electric voltage frequency that is applied on the electrode unit 50 by control voltage generation unit 40, thereby reduces power consumption.When not freezing when in stable condition, the motion of hydrone becomes constant.Even electric voltage frequency reduces, can not have influence on this motion yet.So it is stable not freeze state continuance.
Figure 16 is the control curve map of the supercooling method of Figure 15.What the curve map of Figure 16 showed is the temperature curve of memory space A or B or contents.When the temperature T that senses during greater than T0+a, electric field is closed, and when the temperature T that senses was equal to or less than T0+a, electric field was opened.
Figure 17 is the flow chart that shows according to the supercooling method of four embodiment of the invention.The supercooling method (energy-saving mode) of Figure 17 is controlled the starting point of not freezing pattern according to setting-up time t1.
Specifically, S101 is identical with the S91 of Figure 15.
In S102, the cool time that microcomputer 90 calculates refrigerating circulation system 30 by built-in timer, and determine whether surpassed setting-up time t1 cool time.If do not reach setting-up time t1 cool time, microcomputer 90 keeps wait states, and if reach setting-up time t1 cool time, microcomputer 90 enters S103.
S103 is identical to S96 with the S94 of Figure 15 to S105.
In S106, when memory space A or B or contents are stabilized in when not freezing state, microcomputer 90 is carried out discontinuously and is not frozen pattern by opening the electric field that puts on memory space A or B or contents discontinuously.The term of execution being interrupted, though voltage is not to be applied to electrode unit 50 from voltage generation unit 40, electrode unit 50 carries out the capacitor operation of the scheduled time, thereby the motion of water is kept the scheduled time.The interruption execution of not freezing pattern has reduced power consumption.
Figure 18 is the control curve map of Figure 17 supercooling method.Figure 18 shows is the curve map in the On/Off zone of the temperature curve of memory space A or B or contents and electric field.As shown in figure 18, before reaching setting-up time t1 cool time, electric field is closed, and when reached setting-up time t1 cool time, electric field was opened.
Figure 19 is the control curve map according to the supercooling method of fifth embodiment of the invention.What the control curve map of Figure 19 showed is the temperature curve of memory space A or B or contents, and constitutes corresponding with the control of the S106 of Figure 18.When memory space or contents be stabilized in first open the zone do not freeze state the time, microcomputer 90 is closed electric field at t2 during t3, open the zone second and open electric field when t3, does not freeze pattern thereby carry out discontinuously.As seeing from temperature curve, do not freeze pattern although carry out discontinuously, memory space A or B or contents stably remain on and do not freeze state.
Do not freeze in stable condition after, can optionally use the S97 of Figure 15 and the S106 of Figure 17.
Figure 20 is the control curve map according to the supercooling method of sixth embodiment of the invention.As shown in figure 20, arrive at microcomputer 90 before the step S102 and S103 of the step S93 of Figure 15 and S94 or Figure 17, promptly when memory space A or B or contents froze, microcomputer 90 will have corresponding to the amplitude of area I and the voltage of frequency voltage generation unit 40 and imposes on electrode unit 50.Area I has the low-frequency and low-voltage characteristic.In not undergoing phase transition this zone of (freezing), weak electric field is imposed on memory space A or B or contents.
When microcomputer 90 arrives the step S102 of the step S93 of Figure 15 and S94 or Figure 17 and S103, promptly when memory space A or B or contents can freeze, microcomputer 90 will have corresponding to the amplitude of area I I and the voltage of frequency voltage generation unit 40 and imposes on electrode unit 50.Area I I has the high-frequency and high-voltage characteristic.In this zone that may undergo phase transition, highfield is imposed on memory space A or B or contents.
When not freezing in the S105 of the S96 of Figure 15 and Figure 17 when in stable condition, microcomputer 90 applies electric field by the voltage corresponding to area I.
Therefore, by changing voltage amplitude and frequency to produce electric field according to the degree of carrying out of not freezing state, microcomputer 90 can reduce the power consumption of not freezing in the pattern, and stably pattern is not frozen in execution.
As previously mentioned, described apparatus for supercooling and method can stably remain on the supercooling state with contents for a long time.
Described apparatus for supercooling and method can stably remain on the supercooling state with low temperature with contents by regulating energize and extracting energy.
Described apparatus for supercooling and method can the energy size be set or the temperature of not freezing of control contents is carried out polytype pattern of not freezing by regulating.
Described apparatus for supercooling and method can be by allowing the user select the temperature of not freezing of contents to carry out polytype pattern of not freezing.
Described apparatus for supercooling and method can not frozen the time of implementation of pattern by control, carry out to be used to form and do not freeze or not pattern and the power consumption of not freezing in the pattern being minimized of state.
Described apparatus for supercooling and method can not frozen pattern and keep not freezing state by carrying out discontinuously, and power consumption is minimized.
Though preferred implementation of the present invention is illustrated; but it should be understood that; the invention is not restricted to these preferred implementations, but those of ordinary skills can make various modifications and variations in the present invention for required protection spirit and scope.

Claims (30)

1. apparatus for supercooling comprises:
Be used for extracting the device of energy from contents; With
The hydrone that the energy that is less than the energy that is extracted by supply causes described contents is rotated, the device of at least a motion in vibration and the translation, makes described contents keep liquid thus below phase transition temperature.
2. apparatus for supercooling as claimed in claim 1, wherein, the device of described initiation campaign applies electric field to described contents.
3. apparatus for supercooling as claimed in claim 2, wherein, the device of described initiation campaign is set energize by at least one that changes in voltage, frequency and the electric current.
4. apparatus for supercooling as claimed in claim 1, wherein, the energy that is extracted depends on the difference between the Current Temperatures of the chilling temperature that puts on described contents and described contents.
5. apparatus for supercooling as claimed in claim 1, wherein, the energy that is extracted depends on the amount of described contents.
6. a supercooling method comprises the steps:
The energy that setting is extracted from contents;
Extract the energy that sets from described contents; And
The hydrone that the energy that is less than the energy that sets by supply causes described contents is rotated, at least a motion in vibration and the translation, and above-mentioned steps is carried out in order or simultaneously,
Make described contents below phase transition temperature, keep liquid thus.
7. method as claimed in claim 6, wherein, the step of described setting energy depends on the difference between the Current Temperatures of the chilling temperature that puts on described contents and described contents.
8. method as claimed in claim 6, wherein, the step of described setting energy depends on the amount of described contents.
9. method as claimed in claim 6, wherein, the step of described initiation campaign comprises the steps:
Setting applies energy; And
Come setting voltage, frequency and electric current according to the energy that sets.
10. a supercooling method comprises the steps:
To the contents energize; And
The energy that extraction is Duoed than the energy of being supplied with, the hydrone that causes described contents is rotated, at least a motion in vibration and the translation,
Make described contents below phase transition temperature, keep liquid thus.
11. a supercooling method comprises the steps:
The memory space that is used to store contents is applied energy; And
Do not freeze temperature according to what the size of applying energy was set described memory space or contents.
12. supercooling method as claimed in claim 11, wherein, described setting step is utilized the proportionate relationship between the size of not freezing temperature and energy of described memory space or contents to set not freeze temperature.
13. supercooling method as claimed in claim 11 further comprises the step of described memory space or contents being cooled off with constant cooling velocity.
14. supercooling method as claimed in claim 11, wherein, described setting step is set according to the size of the chilling temperature of described memory space or contents and energy and is not frozen temperature.
15. a supercooling method comprises the steps:
Read the not degree of freezing of memory space or contents; And
Set the size of the energy that applies according to described not degree of freezing.
16. supercooling method as claimed in claim 15 further comprises described memory space or contents are applied the step of setting big or small energy.
17. supercooling method as claimed in claim 15, wherein, described setting step utilizes the proportionate relationship between described not degree of freezing and the energy size to set the size of energy.
18., further comprise the step of described memory space or contents being cooled off with constant chilling temperature as claim 15 or 17 described supercooling methods.
19. supercooling method as claimed in claim 15, wherein, described read step reads the not degree of freezing that the user selects.
20. supercooling method as claimed in claim 15 further comprises the step of setting the cooling degree of described memory space or contents according to described not degree of freezing.
21. carrying out, supercooling method as claimed in claim 20, described method use the energy of the energy of setting size to apply step, and the cooling step that uses the cooling degree of setting.
22. a supercooling method comprises the steps:
Memory space or the contents that are stored in the memory space are cooled off; And
Before the phase transition temperature of described contents, carry out and do not freeze pattern.
23. supercooling method as claimed in claim 22 further comprises the step of the temperature of described memory space of sensing or contents.
24. supercooling method as claimed in claim 22 further is included in and carries out the step that reduces cooling air feed speed in the described step of not freezing pattern.
25. a supercooling method comprises the steps:
To memory space or one section setting-up time of contents cooling; And
Described memory space or contents execution are not frozen pattern.
26. supercooling method as claimed in claim 25, described method reduce the cooling velocity of described cooling step in carrying out described step of not freezing pattern.
27. a supercooling method comprises memory space or the contents that are stored in the memory space is carried out the step do not freeze pattern that the step that pattern is not frozen in described execution is to be interrupted to carry out.
28. supercooling method as claimed in claim 27, wherein, when described contents are in describedly when not freezing state, the described pattern of not freezing is to be interrupted to carry out.
29. a supercooling method comprises the steps:
Carry out and do not freeze pattern;
Check the degree of carrying out of not freezing state; And
Result according to described inspection step controls described intensity of not freezing pattern.
30. supercooling method as claimed in claim 29, wherein, described intensity and the voltage amplitude and the frequency height correlation connection that are used to produce electric field of not freezing pattern.
CNA2006800528001A 2006-02-15 2006-09-27 Supercooling apparatus and its method Pending CN101374428A (en)

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CNA2006800528980A Pending CN101375115A (en) 2006-02-15 2006-09-27 Apparatus for supercooling and method of making slush through supercooling
CNA2006800528001A Pending CN101374428A (en) 2006-02-15 2006-09-27 Supercooling apparatus and its method
CN200680052787XA Active CN101370399B (en) 2006-02-15 2006-09-27 Refrigerator and method of operating a refrigerator
CN2006800528904A Expired - Fee Related CN101375120B (en) 2006-02-15 2006-11-07 Apparatus for supercooling, and method of operating the same
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CN101370399B (en) 2012-09-19
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CN101371090A (en) 2009-02-18

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