CN105806034A - Super-cooling control method of refrigeration device - Google Patents
Super-cooling control method of refrigeration device Download PDFInfo
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- CN105806034A CN105806034A CN201610033252.3A CN201610033252A CN105806034A CN 105806034 A CN105806034 A CN 105806034A CN 201610033252 A CN201610033252 A CN 201610033252A CN 105806034 A CN105806034 A CN 105806034A
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- temperature
- supercooling
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- thing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
- F25D11/02—Self-contained movable devices, e.g. domestic refrigerators with cooling compartments at different temperatures
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D29/00—Arrangement or mounting of control or safety devices
- F25D29/003—Arrangement or mounting of control or safety devices for movable devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B40/00—Subcoolers, desuperheaters or superheaters
- F25B40/02—Subcoolers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D23/00—General constructional features
- F25D23/12—Arrangements of compartments additional to cooling compartments; Combinations of refrigerators with other equipment, e.g. stove
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2600/00—Control issues
- F25D2600/02—Timing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2700/00—Means for sensing or measuring; Sensors therefor
- F25D2700/12—Sensors measuring the inside temperature
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2700/00—Means for sensing or measuring; Sensors therefor
- F25D2700/16—Sensors measuring the temperature of products
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
- Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
Abstract
The invention provides a super-cooling control method of a refrigeration device. The refrigeration device comprises a freezing chamber used for containing frozen foods, a temperature detection mechanism used for detecting temperature of the frozen foods, an air feeder used for blowing freezing air of the freezing chamber to the frozen foods, a freezing circulation system and a control mechanism, wherein the freezing circulation system comprises a compressor, a condenser, a throttling device and an evaporator which are connected together; the control mechanism is used for controlling operations of the freezing circulation system and the air feeder based on output of the temperature detection mechanism. According to the refrigeration device, the compressor of the freezing circulation system continuously operates periodically according to the temperature of the frozen foods detected by the temperature detection mechanism; meanwhile, the air feeder is used for blowing the air to the frozen foods, so that the thin blood loss caused during unfreezing the super-cooled foods can also be reduced even under the condition that the large foods are used as the frozen foods.
Description
Technical field
The present invention relates to the refrigerating plant of food etc. in a kind of cooling preservation storeroom, particularly relate to the supercooling control method of a kind of refrigerating plant having and making the food etc. in refrigerating chamber freeze through supercooling.
Background technology
At present, the freezing method of food product refrigeration is made when adopting freezing in refrigerating chamber through supercooling state.When this method is employed, owing to ice crystal is little and is difficult to destroy the cell of food, therefore, the effect that after can being thawed, blood and slime loss reduces.
The patent documentation that Japanese Patent Laid-Open 2008-267646 describes the refrigeration plant with supercooling function with above-mentioned supercooling function.Specifically, with reference to the flow chart of Fig. 8, when user presses supercooling button, controlling organization after the time in stage 1, in step S101, starts the accumulative supercooling time in accumulating step S100.Here, preset the time arriving supercooling temperature from room temperature, until through this time, namely standby when NO in step S101.Further, when have passed through the stipulated time, namely step S101 is converted to step S102 when YES.Control in step s 102 and make automatically to carry out variations in temperature to low temperature side inside supercooling box.Until through the stipulated time, namely step S103 is the period of NO, and controlling organization carries out the process of step S102.When the cumulative time judging stage 2 and stage 3 arrives the defined time, when namely step S103 is YES, in step S104, controlling organization makes the speed of the design temperature of critesistor, compressor and fan return to general value.By carrying out such cooling action, it is possible to realize the supercooling of food with less energy, improve freezing quality.
Same, the indoor temperature limit describing frontier inspection survey freezer in the patent documentation that Japanese Patent Laid-Open 2011-7487 carries out the overcooled refrigeration plant 100 with supercooling function of control of supercooling operating.Specifically, with reference to Fig. 9, controlling the overcooled refrigeration plant 100 with supercooling function and possess refrigerating chamber 101, its front openings is closed by door 105,106.Additionally, be configured with cooler 102 in the inner side of refrigerating chamber 101, make the cold air that cooled down by cooler to the fan 107 of refrigerating chamber 101 Lateral supply.Furthermore, the compressor 104 having compression cold-producing medium configured under in the inner side of refrigerating chamber 101.When carrying out supercooling operating, controlling organization is by the temperature regime according to refrigerating chamber 101, and the rotating speed of adjustable fan 107, thus realizing supercooling.
But, in the invention described in above-mentioned patent documentation 1, even if owing in either phase, also making fan and compressor intermittent running, accordingly, there exist for occurring cooling capacity during supercooling to be insufficient to greatly, the problem that blood and slime loss during defrosting can not reduce.Additionally, in patent documentation 2, the rotating speed according to the temperature regime adjustable fan 107 of refrigerating chamber 101, but, for instance, when to be freezed in supercooling state by the food such as meat with several kilogram weights, it is difficult to supercooling.Even further, the surface near portions of food can not make supercooling occur sometimes.In this case, there is the problem that blood and slime loss when thawing relatively mostly occurs as described above.
Summary of the invention
The present invention makes in view of the foregoing, even if its object is to provide a kind of thing that is frozen being stored in refrigerating chamber is the large-scale object of comparison, it is also possible to effectively freeze to be frozen the supercooling control method of the refrigerating plant of thing through supercooling.
The present invention provides the supercooling control method of a kind of refrigerating plant, refrigerating plant include for receive be frozen thing refrigerating chamber, for detecting the temperature testing organization of the temperature being frozen thing, for the cold air of refrigerating chamber is blown to be frozen the pressure fan of thing, refrigerating circulation system and controlling organization, refrigerating circulation system includes the compressor, condenser, throttling arrangement and the vaporizer that link together, and controlling organization is based on the output action to control refrigerating circulation system and pressure fan of temperature testing organization；
Supercooling control method includes:
Step 1, when supercooling operate in, controlling organization, when the temperature being frozen thing detected by temperature testing organization is lower than the first temperature ss of predetermined set, makes the compressor of refrigerating circulation system continuously run；
Step 2, in the temperature being frozen thing detected by temperature testing organization lower than when setting low second temperature γ than the first temperature ss, make pressure fan operate.
Further, described step 1 specifically includes:
Step 11, supercooling operate in, after stipulated time α, forbid defrosting；
If the temperature of what step 12 temperature sensor detected be frozen thing is not less than predetermined temperature β, keep compressor intermittent running；
If the temperature of what step 13 temperature sensor detected be frozen thing is lower than predetermined temperature β, compressor is kept to continuously run；
Further, if described step 14 is particularly as follows: the temperature being frozen thing that detects of temperature sensor is lower than predetermined temperature β, keeping compressor to continuously run, meanwhile, controlling organization makes pressure fan inoperative；
Further, described step 2 specifically includes:
If the temperature of step 21 temperature sensor detection is being not less than predetermined temperature γ, compressor is kept to continuously run；
If the temperature of step 22 temperature sensor detection, lower than predetermined temperature γ, is keeping compressor to continuously run, meanwhile, controlling organization makes pressure fan continuously run.
Further, supercooling control method also includes:
If the temperature of step 31 temperature sensor detection is being not less than predetermined temperature δ, then compressor and pressure fan is kept to continuously run；
If the temperature of step 32 temperature sensor detection lower than predetermined temperature δ, is then being judged as that being frozen thing is cooled completely and permits to carry out defrosting step；Wherein, δ is less than β.
Further, described step 31 includes:
If the temperature of step 311 temperature sensor detection is being not less than predetermined temperature δ, and supercooling duration of runs is less than stipulated time ε, then keep compressor and pressure fan to continuously run；
If the temperature of step 312 temperature sensor detection is being not less than predetermined temperature δ, and supercooling exceeds schedule time ε the duration of runs, then be judged as being frozen thing completely cooled and permit to carry out defrosting step.
The supercooling control method of refrigerating plant provided by the invention, according to the temperature being frozen thing detected by temperature testing organization, while periodically making the compressor of refrigerating circulation system continuously run, by pressure fan to being frozen thing blast-cold gas, even if thus when adopting large-scale food as when being frozen thing, it also is able to make supercooling occur at this food, reduces the amount that blood and slime when thawing runs off.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, the accompanying drawing used required in embodiment or description of the prior art will be briefly described below, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skill in the art, under the premise not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the front appearance figure of the refrigerating plant involved by embodiments of the present invention.
Fig. 2 indicates that the side sectional view of the refrigerating plant involved by embodiments of the present invention.
Fig. 3 indicates that the block diagram of the electrical construction of the refrigerating plant involved by embodiments of the present invention.
Fig. 4 be in Fig. 1 A-A to side sectional view.
Fig. 5 A indicates that the side sectional view of the upper strata refrigerating chamber peripheral construction of the refrigerating plant involved by embodiments of the present invention.
Fig. 5 B indicates that the axonometric chart of the spacer member of the refrigerating plant involved by embodiments of the present invention.
Fig. 6 indicates that the flow chart of cooling action when carrying out supercooling operating in the refrigerating plant involved by embodiments of the present invention.
Fig. 7 indicates that the sequential chart of cooling action when carrying out supercooling operating in the refrigerating plant involved by embodiments of the present invention.
Fig. 8 indicates that the flow chart of supercooling action in the refrigerating plant involved by background technology.
Fig. 9 indicates that the side sectional view of the structure of the refrigerating chamber of the refrigerating plant involved by background technology.
Description of reference numerals:
1, refrigerating plant；2, body of thermal insulating box；2a, outer container；2b, interior case；2c, adiabator；3, cold room；4A, refrigerating chamber；4, ice-making compartment 5, upper strata refrigerating chamber；6, lower floor's refrigerating chamber；7, vegetable compartment；8, door；9, door；10, door；11, door；12, door；13, cooling room；13b, opening；14, supply wind path；15, supply wind path；17, wind path is returned；18, wind path shutter；19, Defrost heater；20, spacer member；20a, inclined plane；21, connected entrance；22, peristome；23, pressure fan；23a, fan；23b, shell；24, loading plate；25, hole portion；26, by cold animal；27, guidance panel；28, blowing mouth；29, accommodating container；30、CPU；31, compressor；32, pressure fan；33, cooler 34, temperature sensor；35, control knob；36, adiabatic space bar；37, adiabatic space bar；38, space bar；39, spacer member；40, wind path；41, wind path；42, wind path；43, wind path；44, first area 45, second area；46, wind path；47, substrate is controlled；100, overcooled refrigerating plant is controlled；101, refrigerating chamber；102, cooler；104, compressor；105, door；106, door；107, fan.
Detailed description of the invention
For making the purpose of the embodiment of the present invention, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is a part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art obtain under not making creative work premise, broadly fall into the scope of protection of the invention.
Below, based on accompanying drawing, the refrigerating plant involved by embodiments of the present invention is described in detail.
As it is shown in figure 1, refrigerating plant 1 possesses the storeroom being internally formed storage food etc. as the body of thermal insulating box 2 of main body, body of thermal insulating box 2.As this storeroom, the superiors are cold rooms 3, are be upper strata refrigerating chamber 5 on the right side of ice-making compartment 4 on the left of its lower floor, and lower floor is lower floor's refrigerating chamber 6, orlop again is vegetable compartment 7 for it.Here, owing to ice-making compartment 4, upper strata refrigerating chamber 5 and lower floor's refrigerating chamber 6 are all the storerooms in cryogenic temperature region, therefore, also there is the situation that these are only referred to as refrigerating chamber 4A.Additionally, in the present embodiment, make upper strata refrigerating chamber 5 have and be frozen, by what be stored, the function that thing carries out through supercooling state freezing.This function relevant is illustrated below.
Here, in the present embodiment, possess the refrigerating plant of multiple storeroom as refrigerating plant 1 citing, but the refrigerating plant only with a refrigerating chamber can also be adopted as refrigerating plant 1, make this refrigerating chamber have the function freezing to be frozen thing through supercooling.
The basic function of cold room 1 is to be in that the temperature that food by being accommodated in each storeroom etc. is cooled to regulation by storage a surname's thing.Namely the indoor temperature of refrigerating chamber 3 is refrigerated storage temperature region, and the indoor temperature of refrigerating chamber 4A is cryogenic temperature region, and the indoor temperature of vegetable compartment 7 is refrigerated storage temperature region.
Body of thermal insulating box 2 be previously formed opening, in the peristome corresponding with described each cold room 3 grade respectively opening and closing freely be provided with door 8～12.In door 8, top and the bottom, right side are rotatably supported in body of thermal insulating box 2.It is supported in freely on body of thermal insulating box 2 additionally, door 9～12 is extracted out in the front of refrigerating plant 1.
Here, possessing guidance panel 27 before door 8, user is operated by guidance panel 27 to realize the various functions of refrigerating plant 1.Such as, operator's operation button by push panel 27, thus realizing being frozen the supercooling operating of thing 26 for supercooling at upper strata refrigerating chamber 5.This item relevant is illustrated below.
As in figure 2 it is shown, as the body of thermal insulating box 2 of the main body of refrigerating plant 1 possess the steel plate above with described peristome outer container 2a, make the inner side of outer container 2a have gap and arrange above there is the plastic interior case 2b of peristome.Additionally, the clearance filled and foaming between outer container 2a and interior case 2b has the adiabator 2c of polyurathamc.It addition, each door 8～12 is also adopted by the heat radiating construction same with body of thermal insulating box 2.
Cold room 3 and between the ice-making compartment 4 and upper strata refrigerating chamber 5 of its lower floor insulated division wall 36 interval.Adiabatic division wall 36 is the products formed of synthetic resin, is filled with adiabator inside it.Additionally, insulated division wall 37 separates between lower floor's refrigerating chamber 6 and vegetable compartment 7.
By not shown division wall interval between ice-making compartment 4 and upper strata refrigerating chamber 5.It addition, cold wind circulation connects freely between ice-making compartment 4 and upper strata refrigerating chamber 5 and the lower floor's refrigerating chamber 6 being arranged at its lower floor.
The inside of the cold room 3 of the inside of interior case 2b and end face are formed with the supply wind path 15 making cooled air flow to cold room 3.Equally, the inner side of ice-making compartment 4 and upper strata refrigerating chamber 5 is formed and is synthesized the supply wind path 14 that resinous division wall 38 separates.
Upper strata refrigerating chamber 5 be formed over separated by plastic spacer member 20 with the supply wind path that connects of wind path 14.Further, on upper strata refrigerating chamber 5, it is configured with the pressure fan 23 sending cold wind when supercooling operates to upper strata refrigerating chamber 5.Pressure fan 23 is for the second pressure fan being frozen thing blast-cold gas.
It is provided with the cooling room 13 being separated by spacer member 39 and being formed in the inner side further of the supply wind path 14 of the inside of interior case 2b.The spacer member 39 on cooling top, room 13 is formed the opening connecting cooling room 13 with supply wind path 14, its opening is equipped the pressure fan 32 for making air circulate.Pressure fan 32 is for the first pressure fan to each storeroom cool-air feed.On the other hand, in the formed below of cooling room 13, the cold air that returns from storeroom is sucked into the opening 13b of the inside cooling down room 13.
Upper strata refrigerating chamber 5 is provided with the accommodating container 29 being frozen thing for receiving food etc..Accommodating container 29 be upper opening substantially in the plastic container of box.Accommodating container 29 is assembled in the not shown framework being fixed on door 10, forwards extracts out with door 10 simultaneously and constitutes freely.
Furthermore, in the present embodiment, it is configured with loading plate 24 in the inside of accommodating container 29.Thus, it is ensured that at the lower section wind path of loading plate 24, it is possible to more effectively food etc. is frozen thing 26 and freezes through supercooling.Therefore, it is possible to make to diminish as the ice crystal being frozen thing of food, the generation that the cell of food is difficult to destroy and suppresses blood and slime to run off.This item is described in detail with reference to Fig. 3.
Here, by adopting loading plate 24 can effectively cool down and be frozen thing.But it is also possible to there is no loading plate 24.In this situation, it is frozen thing 26 and is placed in the bottom surface portions of accommodating container 29.
The inside of cooling room 13 is configured with the cooler 33 of the vaporizer as cool cycles air.Cooler 33 by refrigerant piping and compressor 31, not shown condenser, be connected as not shown throttling arrangement, composition vapor-compression type freeze cycle loop.Additionally, the Defrost heater 19 of the frost having the surface paying cooler 33 for periodic dissolution configured under at cooler 33.
Additionally, refrigerating plant 1 possesses the not shown controlling organization being made up of CPU, the indoor temperature in each storeroom, by not shown thermometer detection, shows that the electric signal of this indoor temperature is imported into controlling organization.Additionally, controlling organization is based on the electric signal etc. inputted from thermometer etc., control compressor 31, pressure fan 32, pressure fan 23, Defrost heater 19, wind path shutter 18 etc..
Below, the basic cooling action of the refrigerating plant 1 with said structure is illustrated.
First, made the compressor 31 in composition steam compression type freeze cycle loop operate by controlling organization, thus carried out cooling down the cooling of the air in room 13 by cooler 33.The pressure fan 32 that the cold air cooled down by cooler 33 is operated by controlling organization, discharges from the opening of cooling room 13 to supply wind path 14.
Further, what be discharged to supply wind path 14 cools down adjusting to suitable flow in part through the wind path shutter 18 being made up of motor vibroshock of air, flows to supply wind path 15, supplies cold room 3.Thereby, it is possible to be stored in the food etc. within cold room 3 with suitable temperature cooling preservation.
Supply cold air within cold room 3 is by not shown connection wind path supply to vegetable compartment 7.Further, the cold air being circulated in vegetable compartment 7 is back to the inside of cooling room 13 through recurrence branch 17, the opening 13b cooling down room 13.Therefore, then by cooler 33 cool down.
On the other hand, a part for the cooling air being discharged to supply wind path 14 supplies to ice-making compartment 4 and upper strata refrigerating chamber 5.Further, lower floor's refrigerating chamber 6 that ice-making compartment 4 connects with the air flow within upper strata refrigerating chamber 5, the air within lower floor's refrigerating chamber 6 flows into the bottom of lower floor's refrigerating chamber 6, flows to the inside of cooling room 13 by cooling down the opening 13b of room 13.
As it has been described above, the cooling air after being cooled down by cooler 33 is circulated in storeroom, thus carrying out freezing and the cooling preservation of food etc..In the present embodiment, the operation possessed according to user freezes to be accommodated in the supercooling function being frozen thing 26 of upper strata refrigerating chamber 5.Below this function is illustrated.
Below, with reference to Fig. 3, electrically constituting of above-mentioned refrigerating plant 1 is illustrated.As it is shown on figure 3, be built in the CPU30 controlling to be provided with in substrate 47 controlling organization of the action as each position controlling refrigerating plant 1 of refrigerating plant 1.Additionally, possess in above-mentioned upper strata refrigerating chamber 5 when supercooling operates, to the pressure fan 23 being frozen thing 26 blast-cold gas, the motor being built in this pressure fan 23 is connected with the outlet side terminal of CPU30.Additionally, in upper strata refrigerating chamber 5, as it has been described above, be configured with the temperature sensor 34 of the far infrared thermometer of the surface temperature being frozen thing 26 as detection, this temperature sensor 34 is connected to the input side terminal of CPU30.
Additionally, the control knob 35 being arranged at guidance panel 27 is connected to the input side terminal of CPU30.Further, compressor 31 and Defrost heater 19 are connected to the outlet side terminal of CPU30.
Below, with reference to Fig. 4, Fig. 5 A and Fig. 5 B, the structure near upper strata refrigerating chamber 5 is described in detail.
As shown in Figure 4, upper strata refrigerating chamber 5 is configured with the accommodating container 29 in substantially box shape, accommodating container 29 is configured with loading plate 24.Loading plate 24 is overlooked in quadrangle shape.Material as loading plate 24 adopts metallic plate or resin plate or the wire netting etc. with multiple hole portion.
Accommodating container 29 is separated into two spaces by loading plate 24.Specifically, the inner space of accommodating container 29 is separated into the first area 44 being positioned at above loading plate 24 and is positioned at the second area 45 below loading plate.First area 44 is the region being frozen thing 26 that freezing food etc. is wanted in storage, is frozen thing 26 and is placed in above loading plate 24.Second area 45 is the region passed through for cold air under behaviour in service.Inside accommodating container 29, first area 44 connects through being formed from the hole portion of loading plate 24 with second area 45.
Spacer member 20 is the parts being made up of sheet-like resin, is the component for separating wind path in the upper end of upper strata refrigerating chamber 5.Intercommunicating pore 21 by the cold air of upper strata refrigerating chamber 5 uniformly through in the way of the shape of regulation that formed and configuration, spacer member 20 is formed multiple.Peristome 22 is formed at the rear of intercommunicating pore 21, i.e. the inner side of upper strata refrigerating chamber 5, and peristome 22 is configured with pressure fan 23.
Pressure fan 23 is the axial flow fan that rotary fan is accommodated in shell.The shell of pressure fan 23 is fixed on the upper face side of spacer member 20.
The top of upper strata refrigerating chamber 5 is configured with temperature sensor 34.Temperature sensor 34 is the radiation thermometeies such as such as far infrared sensor, and detection is placed in the surface temperature being frozen thing 26 on loading plate 24.In present embodiment, when the instruction according to user carries out supercooling operating, while utilizing temperature sensor 34 detection to be frozen the temperature of thing 26, regulate cooling capacity.Below this item is illustrated.
With reference to Fig. 5 A, when in order to carry out supercooling operating make pressure fan 23 operate time, the cold air of cooler 33 cooling as shown in Figure 2 utilizes the first area 44 of the air-supply effect feeding upper strata refrigerating chamber 5 of pressure fan 23 to form wind path 40.Specifically, constitute the cold air of the wind path 40 that downward diagonally forward is advanced, blow to the surface being frozen thing 26.
Further, form the hole portion 25 in part through loading plate 24 of the cold air of wind path 40, enter second area 45 from pressure fan 23.Afterwards, this cold air forwards moves at second area 45 and forms wind path 41.
Cold air near the front end that the inside of second area 45 advances to upper strata refrigerating chamber 5 is moved to first area 44 from second area 45 by the hole portion 25 of loading plate 24.Thus, the wind path 42 advanced upward in the inside of first area 44 is formed.
Afterwards, constitute the cold air of wind path 42 via the intercommunicating pore 21 being arranged at spacer member 20, and enter between spacer member 20 and adiabatic division wall 36.Further, the cold air in this region of formation entrance wind path 43 Backwards.Wind path 43 arrives pressure fan 23.
From the above mentioned, when making pressure fan 23 operate in a state of use, form the circulating cold air path with wind path 40,41,42,43 for order.Thus, the temperature difference in the inside of upper strata refrigerating chamber 5 diminishes, and promotes to freeze through overcooled.
Additionally, in the present embodiment, when supercooling operates not only be frozen thing 26 side and above, and thereunder also form wind path and make cold air circulate.Cool down equably with the low temperature of about such as less than-20 DEG C consequently, because be frozen thing 26 from periphery, so, temperature difference therein diminishes, it may be achieved the incidental situation of supercooling.
Furthermore, in the present embodiment, have temperature sensor 34 being frozen the configured above of thing 26, while detection is frozen the overhead temperature of thing 26, regulate the cooling capacity of cooling upper strata refrigerating chamber 5.Therefore, it is possible to reduce freezing of blood and slime loss.This item relevant is described below.
With reference to Fig. 5 B, describe the structure of spacer member 20 in detail.Intercommunicating pore 21, in order to cool down the inside of upper strata refrigerating chamber 5 equably, is formed multiple with the shape of regulation and configuration.Here, the intercommunicating pore 21 that width is elongated is formed.
Pressure fan 23 be possess such as the rotary fan 23a of propeller fan, shell 23b, not shown fan motor axial flow fan.In pressure fan 23, shell 23b is fixed on the above survey of spacer member 20.Here, the cold air constituting the wind path 46 from cooler and the wind path 43 from upper strata refrigerating plant enters fan 23a.
Survey in the rear portion of spacer member 20 is and be formed rearward gradually toward the inclined plane 20a of inclined downward.Further, inclined plane 20a is formed peristome 22, peristome 22 is equipped pressure fan 23.
Owing to pressure fan 23 is configured at inclined plane 20a, therefore, the rotating shaft of fan 23a is not vertical, but tilts to the fore-and-aft direction of refrigerating plant 1.Specifically, in pressure fan 23, the rotating shaft direction that the blowing of its blowing direction and fan 23a is surveyed downward, and forwards tilts and configures.
Below, based on the flow chart shown in Fig. 6 and the sequential chart shown in Fig. 7, and with reference to while above-mentioned each figure, to the refrigerating plant 1 of present embodiment when supercooling operates centered by illustrate.Here, following action is controlled by the CPU30 as controlling organization.Additionally, in Fig. 7, top represents curve chart, and bottom represents sequential chart.In the curve chart on top, transverse axis represents that elapsed time, the longitudinal axis represent freezer temperature and temperature sensor 34 displays temperature.Additionally, in this curve chart, the surface temperature being frozen thing 26 that temperature sensor 34 as shown in Figure 4 detects is represented by dashed line, the indoor temperature chain-dotted line of upper strata refrigerating chamber 5 represents.
First, in the common cooling operating carried out in step slo, the flowing of cold air illustrates.With reference to Fig. 4, generally cooling down operating, be sent to from cooling room 13 by pressure fan 32 supply wind path 14 cold air flow into upper strata refrigerating chamber 5 in part through blow-off outlet 28.It addition, as already explained above, in generally cooling operating, a part of the supply system icehouse 4(of the cold air in supply wind path 14 is with reference to Fig. 2) and lower floor's refrigerating chamber 6 while, supplied to refrigerating chamber 3 by supply wind path 15.
The cold air flowed into from supply wind path 14 mainly flows into upper strata refrigerating chamber 5 from peristome 22.Additionally, from supply wind path 14 flow into cold air flow into upper strata refrigerating chamber 5 in part through connected entrance 21.Here, when generally cooling down, the pressure fan 23 of the peristome 22 being configured at spacer member 20 is inoperative, but cold air is by being in the periphery of the pressure fan 23 of halted state.The cold air of supply upper strata refrigerating chamber 5 flows into and puts in place in lower floor's refrigerating chamber 6 below.This common cooling operating until during supercooling operating, i.e., when the NO of step S11, carries out continuously.
Additionally, when above-mentioned generally operating, controlling organization makes compressor 31 intermittent running including in freeze cycle based on the output of thermometer.Specifically, with reference to Fig. 2, cold room 3, refrigerating chamber 4A and vegetable compartment 7 any one or multiple in be configured with not shown thermometer, based on the output of this thermometer, controlling organization makes compressor 31 operate off and on.Thus, cold room 3, refrigerating chamber 4A and vegetable compartment 7 are maintained at the temperature province of regulation.
Below, when step S11 is YES, user is pressed the operation button that the guidance panel 27 shown in Fig. 1 possesses etc. and is started supercooling operating.On the other hand, when user does not press the operation button, step S11 is NO, and supercooling operating does not start.
Now, it is frozen thing 26 and is stored in the upper strata refrigerating chamber 5 shown in Fig. 4.But, in the present embodiment, weight can be adopted to be the food meat etc. of several kilograms as being frozen thing 26.Ordinary circumstance, carries out freezing being very difficult through supercooling state by this large-scale thing 26 that is frozen.But, in the present embodiment, by adopting cooling means described below, freeze to be frozen thing 26 through supercooling state.
If supercooling operation start, step S12 is the period of NO, waits for stipulated time α.Here, it is stipulated that time α is such as 20 seconds.Further, step S12 becomes YES, is converted to step S13 when have passed through stipulated time α.
In step s 13, defrosting is forbidden.Here, defrosting action is illustrated.Specifically, with reference to Fig. 2, when proceeding cooling operating, on the air side heat-transfer area of cooler 33, frost is paid, and hinders heat transfer, blocks air flow circuit.Therefore, controlling organization judges frosting from the reduction etc. of refrigerant evaporating temperature, starts for paying the defrosting operating removed in the frost of cooler 33.When carrying out defrosting operating, controlling organization stops the operating of compressor 31 and pressure fan 32, is closed by wind path shutter 18.Further, controlling organization is energized to Defrost heater 19.Then, owing to the frost thawing in cooler 33 and cooling room 13 is paid in the heating of Defrost heater 19.Current after frost thawing drop down onto not shown evaporating pan.After this defrosting stroke terminates, controlling organization makes compressor 31 and pressure fan 32 operate again, to upper strata refrigerating chamber 5 cool-air feed.
In defrosting stroke, as it appears from the above, because compressor 31 stops, so, during carrying out defrosting stroke, it is impossible to enough in cool-air feed upper strata refrigerating chamber 5, can worry that the temperature of upper strata refrigerating chamber 5 controls instability.Additionally, in defrosting stroke, owing to by the air within Defrost heater 19 heating cooling room 13, thus, also can worry that the temperature of upper strata refrigerating chamber 5 controls instability.In the present embodiment, the step after step S13, by forbidding defrosting stroke, so that compressor 31 operates continuously, it is possible to continuously by cool-air feed upper strata refrigerating chamber 5.Additionally, because by forbidding defrosting stroke, thus Defrost heater 19 does not generate heat, so, upper strata refrigerating chamber 5 will not be subject to the impact of the heating of Defrost heater 19.Therefore, in order to realize supercooling state, it is possible to correctly control the temperature of upper strata refrigerating chamber 5.
In step S14, start to be frozen the temperature detection of thing 26.Namely with reference to Fig. 4, the display that display is detected by temperature sensor 34 is frozen the information input controlling organization of the temperature of thing 26.Owing to temperature sensor 34 is far infrared thermometer, therefore, temperature sensor 34 detection is frozen the temperature of the near surface of thing 26.
When step S15 is NO, temperature sensor 34 temperature being frozen thing 26 detected is at more than predetermined temperature β.Here, β is the first temperature set in advance, is set to such as-3 DEG C.Therefore, controlling organization is converted to step S16, temperature sensor 34 detection, while being frozen the temperature of thing 26, in order to keep present situation intermittent running compressor 31, gradually cooling is frozen thing 26.In the present embodiment, be frozen the temperature of thing 26 period more than temperature ss, by intermittent running compressor 31, thus suppressing cooling capacity, do not make to be frozen thing 26 temperature reduce too fast.
On the other hand, when step S15 is YES, the temperature being frozen thing 26 detected by temperature sensor 34 is lower than predetermined temperature β.In this case, being converted to step S17, controlling organization makes compressor 31 continuously run.In the sequential chart of Fig. 7, represent that compressor 31 continuously runs the time of beginning with T11.
With reference to Fig. 2, controlling organization is by making compressor 31 operate continuously, thus being cooled down the air within room 13 by cooler 33.Additionally, simultaneously, controlling organization makes pressure fan 32 also operate continuously, by the inner colded cool-air feed upper strata refrigerating chamber 5 in cooling room 13.Thus, with reference to Fig. 4, the thing 26 that is frozen being stored in upper strata refrigerating chamber 5 is continuously fed cold air.Thus, cooling is frozen the cooling capacity increase of thing 26.
Here, in step S17, controlling organization makes compressor 31 operate continuously, but, make pressure fan 23 inoperative.Its reason is to suppress cooling capacity in this step, does not make the temperature being frozen thing 26 reduce too fast.
Below, when step S18 is NO, temperature sensor 34 temperature detected is at more than predetermined temperature γ.Here, γ is the second temperature set in advance, is less than the temperature of above-mentioned β.The occurrence of γ is set to such as-4.5 DEG C.In this situation, controlling organization is converted to step S19, in order to keep present situation, temperature sensor 34 detection while being frozen the temperature of thing 26, makes compressor 31 continuously run, and cooling is frozen thing 26.
On the other hand, when step S18 is YES, the temperature being frozen thing 26 detected by temperature sensor 34 is lower than temperature γ.In this case, being converted to step S20, controlling organization makes pressure fan 23 continuously run.In the sequential chart of Fig. 7, represent that compressor 31 continuously runs the time of beginning with T12.
Specifically, in this step, controlling organization makes compressor 31 continuous action, and, it is that pressure fan 23 continuously runs.Therefore, with reference to Fig. 5, make pressure fan 23 operate by controlling organization, thus to being frozen thing 26 blast-cold gas.Additionally, while a part for the cold air blown by pressure fan 23 is circulated via wind path 40,41,42,43, cooling is frozen thing 26.
So, while making compressor 31 operating by controlling organization, pressure fan 23 is made also to operate such that it is able to make the air quantity to the cold wind being frozen thing 26 supply increase, make the surface temperature being frozen thing 26 reduce rapidly.When freezing is frozen thing 26, make the whole thing 26 that is frozen occur supercooling to be most suitable, but when being frozen the cube meat that thing 26 is such as about several kilograms, make until raw being cooled of the center portion thereof distribution is very difficult.Even if in this case, according to present embodiment, by being frozen the near surface generation supercooling of thing 26 such that it is able to suppress blood and slime when thawing to run off.
When step S21 is NO, temperature sensor 34 temperature being frozen thing 26 detected is at more than predetermined temperature δ.Here, δ is the 3rd temperature set in advance, is less than the temperature of above-mentioned γ.The occurrence of δ is set to such as-20 DEG C.Therefore, being converted to step S22, controlling organization judges whether it is start to have passed through stipulated time ε after supercooling operates.
On the other hand, if the temperature being frozen thing 26 detected by temperature sensor 34 is lower than temperature delta, owing to being judged as YES in the step s 21, therefore, it is judged that completely cooled for being frozen thing 26, it is converted to the step S24 allowing defrosting step.
If additionally, have passed through stipulated time ε, owing to judging that step S22 is YES, therefore, the step 24 allowing defrosting step it is converted to.Here, it it is 25 hours as an example.On the other hand, when not past stipulated time ε, owing to step S22 is NO, therefore, being converted to step S23, controlling organization keeps present situation.That is, by making compressor 31 continuously run, it is frozen thing 26 thus being blowed to by pressure fan 23 by the cold air of cooling.
In step s 24, it is judged that be frozen thing 26 cooled, license carries out defrosting step.That is, by adopting said method, by heating Defrost heater 19, thus dissolving paying at the frost on cooler 33 surface and removing.
Afterwards, it is converted to step S25, terminates supercooling operating, be converted to and generally cool down operating.That is, with reference to Fig. 2, the mode that controlling organization is predetermined temperature with the indoor temperature of each storeroom of refrigerating plant 1 controls compressor 31.
Above, structure and action to the refrigerating plant 1 of present embodiment are illustrated.
The present invention is not limited to above-mentioned embodiment, and other are without departing from the scope of idea of the invention, it is possible to implement various change.
Claims (6)
1. the supercooling control method of a refrigerating plant, it is characterized in that, refrigerating plant include for receive be frozen thing refrigerating chamber, for detecting the temperature testing organization of the temperature being frozen thing, for the cold air of refrigerating chamber is blown to be frozen the pressure fan of thing, refrigerating circulation system and controlling organization, refrigerating circulation system includes the compressor, condenser, throttling arrangement and the vaporizer that link together, and controlling organization is based on the output action to control refrigerating circulation system and pressure fan of temperature testing organization；
Supercooling control method includes:
Step 1, when supercooling operate in, controlling organization, when the temperature being frozen thing detected by temperature testing organization is lower than the first temperature ss of predetermined set, makes the compressor of refrigerating circulation system continuously run；
Step 2, in the temperature being frozen thing detected by temperature testing organization lower than when setting low second temperature γ than the first temperature ss, make pressure fan operate.
2. refrigerating plant according to claim 1, it is characterised in that: described step 1 specifically includes:
Step 11, supercooling operate in, after stipulated time α, forbid defrosting；
If the temperature of what step 12 temperature sensor detected be frozen thing is not less than predetermined temperature β, keep compressor intermittent running；
If the temperature of what step 13 temperature sensor detected be frozen thing is lower than predetermined temperature β, compressor is kept to continuously run.
3. the supercooling control method of refrigerating plant according to claim 2, it is characterized in that: if described step 14 is particularly as follows: the temperature being frozen thing that detects of temperature sensor is lower than predetermined temperature β, keeping compressor to continuously run, meanwhile, controlling organization makes pressure fan inoperative.
4. the supercooling control method of refrigerating plant according to claim 1, it is characterised in that: described step 2 specifically includes:
If the temperature of step 21 temperature sensor detection is being not less than predetermined temperature γ, compressor is kept to continuously run；
If the temperature of step 22 temperature sensor detection is lower than predetermined temperature γ, keep compressor to continuously run, meanwhile, controlling organization makes pressure fan continuously run.
5. the supercooling control method of refrigerating plant according to claim 1, it is characterised in that: supercooling control method also includes:
If the temperature of step 31 temperature sensor detection is being not less than predetermined temperature δ, then compressor and pressure fan is kept to continuously run；
If the temperature of step 32 temperature sensor detection lower than predetermined temperature δ, is then being judged as that being frozen thing is cooled completely and permits to carry out defrosting step；Wherein, δ is less than β.
6. the supercooling control method of refrigerating plant according to claim 5, it is characterised in that: described step 31 includes:
If the temperature of step 311 temperature sensor detection is being not less than predetermined temperature δ, and supercooling duration of runs is less than stipulated time ε, then keep compressor and pressure fan to continuously run；
If the temperature of step 312 temperature sensor detection is being not less than predetermined temperature δ, and supercooling exceeds schedule time ε the duration of runs, then be judged as being frozen thing completely cooled and permit to carry out defrosting step.
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| CN201510027236 | 2015-01-20 | ||
| CN2015100272369 | 2015-01-20 |
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| CN201610033253.8A Active CN105806035B (en) | 2015-01-20 | 2016-01-19 | The supercooling control method of refrigeration equipment |
| CN201620048557.7U Active CN205536772U (en) | 2015-01-20 | 2016-01-19 | Refrigerating equipment |
| CN201610033256.1A Active CN105806007B (en) | 2015-01-20 | 2016-01-19 | Refrigeration equipment |
| CN201610033252.3A Active CN105806034B (en) | 2015-01-20 | 2016-01-19 | The supercooling control method of refrigerating plant |
| CN201610033254.2A Active CN105806006B (en) | 2015-01-20 | 2016-01-19 | Refrigeration equipment with supercooling function |
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| CN201610033253.8A Active CN105806035B (en) | 2015-01-20 | 2016-01-19 | The supercooling control method of refrigeration equipment |
| CN201620048557.7U Active CN205536772U (en) | 2015-01-20 | 2016-01-19 | Refrigerating equipment |
| CN201610033256.1A Active CN105806007B (en) | 2015-01-20 | 2016-01-19 | Refrigeration equipment |
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| CN110940133A (en) * | 2019-10-30 | 2020-03-31 | 合肥晶弘电器有限公司 | Instant freezing control method for refrigeration equipment and refrigeration equipment |
| WO2022135533A1 (en) * | 2020-12-24 | 2022-06-30 | 海尔智家股份有限公司 | Refrigerator |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN105806035B (en) | 2018-06-19 |
| CN105806034B (en) | 2018-10-09 |
| CN105806007B (en) | 2019-02-01 |
| CN105806007A (en) | 2016-07-27 |
| CN105806035A (en) | 2016-07-27 |
| CN105806006B (en) | 2018-10-09 |
| CN205536772U (en) | 2016-08-31 |
| CN105806006A (en) | 2016-07-27 |
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