CN1796900A - Hybrid cooling system, and refrigerator and freezer using the same - Google Patents
Hybrid cooling system, and refrigerator and freezer using the same Download PDFInfo
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- CN1796900A CN1796900A CNA2005101137553A CN200510113755A CN1796900A CN 1796900 A CN1796900 A CN 1796900A CN A2005101137553 A CNA2005101137553 A CN A2005101137553A CN 200510113755 A CN200510113755 A CN 200510113755A CN 1796900 A CN1796900 A CN 1796900A
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- electrothermal module
- air
- refrigerating chamber
- cold
- refrigeration system
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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
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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
- F25B21/00—Machines, plants or systems, using electric or magnetic effects
- F25B21/02—Machines, plants or systems, using electric or magnetic effects using Peltier effect; using Nernst-Ettinghausen effect
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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
- F25B25/00—Machines, plants or systems, using a combination of modes of operation covered by two or more of the groups F25B1/00 - F25B23/00
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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
- F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
- F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
- F25D17/06—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
- F25D17/062—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation in household refrigerators
- F25D17/065—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation in household refrigerators with 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
- F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
- F25D2317/06—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation
- F25D2317/061—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation through special compartments
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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
- F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
- F25D2317/06—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation
- F25D2317/065—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation characterised by the air return
- F25D2317/0653—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation characterised by the air return through the mullion
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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
- F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
- F25D2317/06—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation
- F25D2317/068—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation characterised by the fans
- F25D2317/0682—Two or more fans
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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
- F25D2400/00—General features of, or devices for refrigerators, cold rooms, ice-boxes, or for cooling or freezing apparatus not covered by any other subclass
- F25D2400/04—Refrigerators with a horizontal mullion
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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)
Abstract
The invention relates to a hybrid cooling system, a refrigerator and a freezer using the system. The hybrid cooling system includes: a refrigerant circulation type cooling system; a thermoelectric type system which comprising a thermoelectric module having a heat absorption surface and a heat delivery surface; a first blower which is arranged on the heat absorption surface and/or the heat delivery surface of the thermoelectric module; wherein, the thermoelectric module is cooled by the air cooled through the refrigerant circulation type cooling system, the air is circulated through the heat exchange between the first blower and the thermoelectric module. Through mounting the blower on the heat absorption surface of the thermoelectric module, thereby improving the cooling speed of cooling the air which is cooled by the refrigerant circulation type cooling system again by the thermoelectric module, further improving the thermal efficiency of the whole system and obtaining ultralow refrigerant temperature of -30 to -80 DEG C.
Description
Technical field
The refrigerating plant that the present invention relates to a kind of mixed refrigeration systems and have this mixed refrigeration systems such as refrigerator and reach in freezer etc., more particularly, in this mixed refrigeration systems, use cold-producing medium circular form refrigeration system and electrothermic type refrigeration system, and then obtain the refrigeration of ultralow temperature.
Background technology
At present, refrigerating plant uses multiple refrigeration system, it typically is such as the cold-producing medium circular form refrigeration system of compression-type refrigerating system and absorption system etc. and electrothermic type refrigeration system etc.
What traditional cold-producing medium circular form refrigeration system usually adopted is compression-type refrigerating system, and it comprises compressor, condenser, expansion gear and evaporimeter, and it forms kind of refrigeration cycle, with compress, the operation of condensation and vaporized refrigerant.
But in this refrigeration system, be difficult to make the temperature of the refrigerating chamber in the refrigerating plant to be reduced to-30 ℃ or lower.For the temperature of reefer space is freezed to ultralow temperature, in refrigerating plant, form two kind of refrigeration cycle usually.
Fig. 1 illustrates to be used for refrigerating plant is freezed to the schematic diagram of traditional kind of refrigeration cycle of ultralow temperature.
As shown in Figure 1, the kind of refrigeration cycle of tradition refrigerating plant comprises first kind of refrigeration cycle and second kind of refrigeration cycle, this first kind of refrigeration cycle is made of first compressor 1, first condenser 2, first expansion gear 3 and intermediate heat exchanger 4, and this second kind of refrigeration cycle is made of second compressor 5, intermediate heat exchanger 6, second expansion gear 7 and evaporimeter 8.
In first kind of refrigeration cycle, cold-producing medium is by the compression of first compressor 1, by 2 condensations of first condenser, is expanded to the liquid state of low-temp low-pressure by first expansion gear 3, then by intermediate heat exchanger 4 evaporations, to produce refrigeration.
Simultaneously, in second kind of refrigeration cycle, cold-producing medium is by 5 compressions of second compressor, intermediate heat exchanger 6 condensations by being used as second condenser then.In this intermediate heat exchanger 6, according to the refrigeration of the intermediate heat exchanger 4 in first circulation, cold-producing medium is cooled to the temperature lower than the cryogenic temperature of first condenser 2.Condensed refrigerant expands by second expansion gear 7, then by evaporimeter 8 evaporations, to produce the refrigeration of-30 ℃ to-80 ℃ ultralow temperature.
Thus, drive first kind of refrigeration cycle, so that the intermediate heat exchanger 6 of second kind of refrigeration cycle obtains the ultralow condensation temperature of expectation.
In addition, the cold-producing medium of second kind of refrigeration cycle must have the condensation temperature of the cold-producing medium that is lower than first kind of refrigeration cycle.
Yet, under 20 ℃ to 40 ℃ ambient temperature conditions, drive two kind of refrigeration cycle, so that evaporimeter 8 obtains-30 ℃ to-80 ℃ ultralow cryogenic temperature, in said circumstances, must use the assembly of accelerating, its quantity reaches the twice of using single kind of refrigeration cycle situation approximately.And this kind situation also has the problem that is greatly diminished for the needed thermal efficiency of ultralow cryogenic temperature that obtains to expect.
In addition, two kinds of different cold-producing mediums must be used for two kind of refrigeration cycle.This also exists the compressor 1 and 5 problems that must independently control of first and second circulations.
Owing to these reasons, there is the problem that cost increases, step increases and increased the refrigerator inside space minimizing that is caused by component count in the aforesaid situation of utilizing two kind of refrigeration cycle.
Therefore, in order to overcome traditional existing the problems referred to above of super low temperature refrigeration system, the common refrigeration modes that adopts compression-type refrigerating system and electrothermic type refrigeration system to combine, it not only can reduce the quantity of assembly, and can also overcome the problem of the thermal efficiency reduction of two-way compression-type refrigeration circulation existence.
The electrothermic type refrigeration system is different with cold-producing medium circular form refrigeration system, and it is that a kind of paltie effect of electrothermal module that utilizes carries out the system that electricity freezes.At this, it should be explained that peltier effect finds that in 1834 it is a kind of like this phenomenon: when dc voltage imposes on the contact of different materials by Ji Enpaer card (Jean Peltier), heat absorption appears in the side at contact, and heat release occurs at the opposite side of this contact.About the refrigeration principle of electrothermal module, as shown in Figure 2, wherein Fig. 2 is a schematic diagram of describing general electrothermal module.
UK Patent Application GB877274 discloses a kind of refrigerator, and this refrigerator is the mixed refrigeration systems that adopts electrothermic type refrigeration system and cold-producing medium circular form refrigeration system.This refrigerator has refrigerating chamber and refrigerating chamber.This refrigerating chamber is by the evaporimeter refrigeration of for example absorption system, and this evaporimeter comprises the tabular heat exchange component of the rectangular box-shaped structure that is bent into both ends open.This refrigerating chamber is contained in the rectangular box-shaped structure of being located in this refrigerating chamber, and this freezer indoor wall is provided with liner.This refrigerator also comprises a thermoelectric (al) type system, and the electrothermal module of this thermoelectric (al) type system is located between the liner and this tabular heat exchange component of this refrigerating chamber.The hot junction of this electrothermal module cools off by tabular heat exchange component, and the cold junction of this electrothermal module and the liner of this refrigerating chamber carry out heat exchange, with the air in the cooling refrigerating chamber.And the liner of this refrigerating chamber is heat-insulating with this tabular heat exchange component.Yet, in this refrigerator,, and do not form the circulation of effective ground vapour stream in it because the air in refrigerating chamber and the refrigerating chamber only is to cool off by evaporimeter or thermoelectric (al) type system, so its cooling velocity is slower, its thermal efficiency is unsatisfactory.
In addition, a mouthful Ben Tekaiping No.2000304396 discloses another kind of hybrid refrigerator.This hybrid refrigerator comprises: a compression-type refrigeration circulation and an electrothermal module.This compression-type refrigeration circulation comprises: compressor, condenser, expansion valve and evaporimeter.Wherein the evaporimeter of this compression-type refrigeration circulation contacts with the hot junction of this electrothermal module by hot memory bank; The cold junction of this electrothermal module carries out heat exchange by the air in heat exchanger and the hamper.This hybrid refrigerator cools off the interior air of hamper so that it has higher heat absorption efficiency, and then realizes ultralow temperature by the heat delivery surface of compression-type refrigeration circulation cooling electrothermal module.But, since this refrigeration system only can to one independently casing carry out the cooling of ultralow temperature, and do not form the circulation of effective ground vapour stream in it, the thermal efficiency of evaporimeter is not fully used simultaneously, so its refrigerating efficiency still has much room for improvement.
Summary of the invention
Consider that the above-mentioned problems in the prior art created the present invention, the object of the present invention is to provide a kind of mixed refrigeration systems, this mixed refrigeration systems comprises a cold-producing medium circular form refrigeration system and an electrothermic type circulatory system that is provided with hair-dryer, thereby can in this mixed refrigeration systems, form the air-flow circulating path, and then obtain-30 ℃ to-80 ℃ ultralow cryogenic temperature, and improve the thermal efficiency.
Another object of the present invention also is to provide a kind of reach in freezer with this mixed refrigeration systems, is provided with the low temperature chamber with ultralow temperature in this freezing cabinet.
A further object of the present invention is to provide a kind of refrigerator with this mixed refrigeration systems, realizes having the low temperature chamber of ultralow temperature in the refrigerating chamber of this refrigerator.
According to first scheme of the present invention, the invention provides a kind of mixed refrigeration systems, comprising: cold-producing medium circular form refrigeration system; The electrothermic type refrigeration system, it comprises electrothermal module, this electrothermal module has heat absorption surface and heat delivery surface; And first hair-dryer, it is arranged on the heat absorption surface and/or heat delivery surface of this electrothermal module; Wherein, this electrothermal module cools off once more to the air by this cold-producing medium circular form refrigeration system cooling, and makes the air circulation of carrying out heat exchange with electrothermal module by this first hair-dryer.。
This cold-producing medium circular form refrigeration system is used to cool off the air in first predetermined space; And this electrothermal module is used for cooling off once more by this cold-producing medium circular form refrigeration system air cooling, that be arranged at second predetermined space in this first predetermined space.
The heat absorption surface of this electrothermal module is exposed to this second predetermined space, and its heat delivery surface is exposed to this first predetermined space.
This mixed refrigeration systems also comprises second hair-dryer, and the evaporimeter in itself and this cold-producing medium circular form refrigeration system is adjacent to be provided with, so that by the air circulation of this evaporator cools; And this electrothermal module will be arranged in the circulating path by the air of this evaporator cools, so that this second hair-dryer will directly be conducted to this electrothermal module by the air of this evaporator cools.
This electrothermal module is attached on the evaporimeter in this cold-producing medium circular form refrigeration system.
According to alternative plan of the present invention, the invention provides a kind of reach in freezer, comprising: refrigerating chamber; Low temperature chamber, it is arranged in this refrigerating chamber; Cold-producing medium circular form refrigeration system is used for the air in this refrigerating chamber is cooled off; The electrothermic type refrigeration system, it comprises electrothermal module, and this electrothermal module has heat absorption surface and heat delivery surface, and this electrothermal module is used for air in this low temperature chamber, that cooled off by this cold-producing medium circular form refrigeration system is cooled off once more; And first hair-dryer, it is arranged on the heat absorption surface and/or heat delivery surface of this electrothermal module, so that the air circulation of carrying out heat exchange with this electrothermal module.
In this reach in freezer, this electrothermal module is installed on the wall that this low temperature chamber and this refrigerating chamber are separated, and extends through this wall, so that the heat absorption surface of this electrothermal module is exposed to this low temperature chamber, its heat delivery surface is exposed to this refrigerating chamber.
In this reach in freezer, this reach in freezer also comprises second hair-dryer, and the evaporimeter in itself and this cold-producing medium circular form refrigeration system is adjacent to be provided with, so that by the air circulation of this evaporator cools; And this electrothermal module will be arranged in the circulating path by the air of this evaporator cools, so that this second hair-dryer will directly be conducted to this electrothermal module by the air of this evaporator cools.
In this reach in freezer, this electrothermal module is attached on the evaporimeter in this cold-producing medium circular form refrigeration system.
In this reach in freezer, a side relative with this electrothermal module of this low temperature chamber is equipped with door.
According to third party's case of the present invention, the invention provides a kind of refrigerator, comprising: refrigerating chamber; Refrigerating chamber, it separates with refrigerating chamber; Low temperature chamber, it is arranged in this refrigerating chamber; Cold-producing medium circular form refrigeration system is used for the air in this refrigerating chamber and the refrigerating chamber is cooled off; The electrothermic type refrigeration system, it comprises electrothermal module, and this electrothermal module has heat absorption surface and heat delivery surface, and this electrothermal module is used for air in this low temperature chamber, that cooled off by this cold-producing medium circular form refrigeration system is cooled off once more; And first hair-dryer, it is arranged on the heat absorption surface and/or heat delivery surface of this electrothermal module, so that the air circulation of carrying out heat exchange with this electrothermal module.
In this refrigerator, this electrothermal module is installed on the wall that this low temperature chamber and this refrigerating chamber are separated, and extends through this wall, so that the heat absorption surface of this electrothermal module is exposed to this low temperature chamber, its heat delivery surface is exposed to this refrigerating chamber.
In this refrigerator, this refrigerator also comprises second hair-dryer, and the evaporimeter in itself and this cold-producing medium circular form refrigeration system is adjacent to be provided with so that by the air of this evaporator cools at this refrigerating chamber and/or should the refrigeration indoor circulation; And this electrothermal module will be arranged in the circulating path by the air of this evaporator cools, so that this second hair-dryer will directly be conducted to this electrothermal module by the air of this evaporator cools.
In this refrigerator, between this refrigerating chamber and this refrigerating chamber, also be provided with gas channel, this second hair-dryer is arranged in this gas channel.
In this refrigerator, this electrothermal module is attached on the evaporimeter in this cold-producing medium circular form refrigeration system.
In this refrigerator, a side relative with this electrothermal module of this low temperature chamber is equipped with door.
The advantage that the present invention has is as follows:
Since mixed refrigeration systems according to the present invention and have the reach in freezer of this refrigerant mixed system and refrigerator in used cold-producing medium circular form refrigeration system and electrothermic type refrigeration system, so the inner space that can reduce cost, reduce operating procedure, reduce component count and save freezing equipment.And,, can significantly improve the cooling velocity of the air by this cold-producing medium circular form refrigeration system cooling being cooled off once more by this electrothermal module by on the heat absorption surface of this electrothermal module, hair-dryer being set.
In addition, cool off first predetermined space owing to use cold-producing medium circular form refrigeration system, and adopt the cooling of electrothermic type refrigeration system to be placed in the second interior predetermined space of this first predetermined space, so it can utilize the efficient of evaporimeter refrigeration fully, and the good refrigerating environment that helps electrothermal module work is provided, can improve the thermal efficiency thus.
Moreover, electrothermal module directly is exposed to need carries out in the space of heat exchange, can realize directly that the direct heat of electrothermal module heat absorption surface and air exchanges, can realize better refrigeration thus.
In addition, except above-mentioned advantage, because in refrigerator-freezer according to the present invention and refrigerator, near evaporimeter, be provided with hair-dryer, help directly supplying to the air of evaporator cools on the electrothermal module, thus, more help realizing the ultralow temperature control of low temperature chamber, improve the thermal efficiency of electrothermal module simultaneously.If evaporimeter is attached on the heat delivery surface of this electrothermal module, will realize better refrigeration.
Description of drawings
After the detailed description of having read below in conjunction with accompanying drawing, above-mentioned purpose of the present invention, other feature and advantage will become more obvious.Wherein:
Fig. 1 describes to be used for refrigerating plant is freezed to the schematic diagram of traditional kind of refrigeration cycle of ultralow temperature;
Fig. 2 is a schematic diagram of describing general electrothermal module;
Fig. 3 is the schematic diagram of describing according to mixed refrigeration systems of the present invention;
Fig. 4 is the cutaway view of describing according to the hybrid refrigeration structure in the refrigerator of first embodiment of the invention;
Fig. 5 is the cutaway view of describing according to the hybrid refrigeration structure in the refrigerator of second embodiment of the invention;
Fig. 6 is the cutaway view of describing according to the reach in freezer of third embodiment of the invention; And
Fig. 7 is the cutaway view of describing according to the reach in freezer of fourth embodiment of the invention.
The specific embodiment
Below with reference to the representative embodiment of accompanying drawing description according to mixed refrigeration systems of the present invention and refrigerator and reach in freezer.
Though according to refrigerator of the present invention and reach in freezer a plurality of embodiment can be arranged, will only be described below in conjunction with most preferred embodiment.In the following description, with the detailed description of omitting according to the essential structure of refrigerator of the present invention or reach in freezer, because these structures are basic identical with the structure of prior art.
Fig. 3 is the schematic diagram of describing according to mixed refrigeration systems of the present invention.
As shown in Figure 3, mixed refrigeration systems according to the present invention comprises: use the cold-producing medium circular form refrigeration system of cold-producing medium circulation generation refrigeration, and the electrothermic type refrigeration system of using thermoelectric cooling (being peltier effect).Wherein this cold-producing medium circular form refrigeration system can be compression-type refrigerating system or absorption system.Only be elaborated below, but the present invention is not limited to following manner at compression-type refrigerating system.This compression-type refrigerating system comprises: compressor 10, and it is used for compressed gas refrigerant; Condenser 20, it will refrigerant compressed be condensed to liquid state in compressor 10; Expansion gear 30, it is used for and will expand into trickle mist state in condenser 20 condensed refrigerant; And evaporimeter 40, it is used for the cold-producing medium and the surrounding air that expand are carried out heat exchange, vaporized refrigerant thus.Wherein the electrothermal module 50 of this electrothermic type refrigeration system utilizes paltie effect to cool off the air that is cooled off by this cold-producing medium circular form refrigeration system once more, simultaneously be provided with centrifugal blower on the heat absorption surface of electrothermal module, so that carry out heat exchange fast by the air of cold-producing medium circular form refrigeration system cooling and the heat absorption surface of electrothermal module, to obtain the super low temperature refrigeration effect and to improve the thermal efficiency.
Fig. 4 is the cutaway view of describing according to the hybrid refrigeration structure of refrigerator first embodiment of the present invention.Though, the embodiment of a plurality of refrigerators can be arranged according to mixed refrigeration systems of the present invention.Only be elaborated below, but the present invention is not limited to following manner at refrigerator with compression-type refrigerating system.
As Fig. 3 or shown in Figure 4, describe the refrigerator that is combined with above-mentioned mixed refrigeration systems below in detail.Refrigerator according to the present invention comprises machine chamber 100, and compressor 10, condenser 20 and expansion gear 30 are installed in it.This refrigerator also is included in refrigerating chamber 110 and the refrigerating chamber 120 that is provided with in the space that separates with machine chamber 100, is provided with the gas channel that at least one can make air pass through between this refrigerating chamber 110 and this refrigerating chamber 120.Evaporimeter 40 is arranged between refrigerating chamber 110 and the refrigerating chamber 120.
Hair-dryer 60 is installed in refrigerator, passes refrigerating chamber 110 and refrigerating chamber 120 so that carried out the air circulation of heat exchange at evaporimeter 40 places.In refrigerator, define gas channel, so that the air that is blown by hair-dryer 60 circulates along gas channel, shown in the arrow among Fig. 4.
Simultaneously, define low temperature chamber 130 in refrigerating chamber 110, it is independent of this refrigerating chamber 110.
Preferably, electrothermal module 50 is arranged in the gas channel, so that directly receive air 60 that blow by hair-dryer, that in refrigerator, circulate along this gas channel.
Simultaneously, if change the sense of current that is applied to electrothermal module 50, the position of heat absorption surface and heat delivery surface can be changed each other.Therefore, according to user's needs, optionally drive this electrothermal module 50.When the user wished that low temperature chamber 130 temperature inside are remained to the temperature that is lower than refrigerating chamber 110, the controller (not shown) that user's operation is used to move electrothermal module 50 got final product.
In addition, preferably, hair- dryer 70 and 75 is arranged at two surfaces of electrothermal module 50 respectively, passes low temperature chamber 130 or refrigerating chamber 110 so that optionally make by the air circulation of electrothermal module 50 coolings.
Describe the operation of the first embodiment of the present invention in detail below with reference to Fig. 3 and 4.
At first, condense to liquid state by compressor 10 refrigerant compressed by condenser 20.Then, condensed refrigerant becomes the mist state by expansion gear 30.Next, the cold-producing medium of mist state is by evaporimeter 40 evaporations.
In the evaporation process of cold-producing medium, the air that passes evaporimeter 40 is by evaporimeter 40 coolings.Then, the air of this cooling is fed in refrigerating chamber 110 and the refrigerating chamber 120 by hair-dryer 60.
Especially, hair-dryer 60 is preferably centrifugal blower, and it is suitable for discharging inhaled air along central suction and along circumference, so that make the air by evaporimeter 40 coolings can be fed to refrigerating chamber 110 and refrigerating chamber 120.
The part of air that is incorporated into this refrigerating chamber 110 by hair-dryer 60 is supplied to and is mounted to the electrothermal module 50 that is exposed to low temperature chamber 130.
When electrothermal module 50 operations, make appearance heat absorption phenomenon in the low temperature chamber 130 by this electrothermal module 50.At this moment, make the outside of low temperature chamber 130 exothermic phenomenon occur by electrothermal module 50.
When electrothermal module 50 moved in the above described manner, the temperature of refrigerating chamber 110 remained on approximately-18 ℃, and the temperature of low temperature chamber 130 remain on approximately-30 ℃～-80 ℃.
Owing to hair- dryer 70 and 75 are set respectively at the opposite side of electrothermal module 50, among one in relevant low temperature chamber 130 and refrigerating chamber 110, air generation convection current cooling or heating that around electrothermal module 50, produces by peltier effect.Therefore, in low temperature chamber 130, produce the refrigeration that strengthens, also can strengthen cross-ventilation effect and refrigeration in whole freezing chamber and the refrigerating chamber simultaneously, thereby improved the thermal efficiency.
In addition, as door being installed, can prevent that then the cooling air in low temperature chamber 130 from leaking to refrigerating chamber 110 at low temperature chamber 130 opening parts.The temperature that can keep thus, low temperature chamber 130 more equably.
Therefore, can control the temperature of refrigerating chamber 110 or low temperature chamber 130 more on one's own initiative by control electrothermal module 50.For example, when the temperature of low temperature chamber 130 was lower than the temperature of user's needs, executive control operation was applied to the current polarity of electrothermal module 50 with change, and then increased the temperature of low temperature chamber 130.Certainly, opposite with aforesaid operations operation is feasible too.
Fig. 5 is the cutaway view of description according to the hybrid refrigeration structure of the refrigerator of second embodiment of the invention.
Except electrothermal module 50 was connected to evaporimeter 40, the second embodiment of the present invention was similar to first embodiment.
That is to say that evaporimeter 40 is installed in the refrigerating chamber 110, and electrothermal module 50 is directly connected on the surface of evaporimeter 40.In this case, the air by evaporimeter 40 coolings is cooled off once more by electrothermal module 50.
Be provided with according to this, its advantage is directly to control the temperature of evaporimeter 40 by electrothermal module 50.
According to similar with first embodiment of other structures of second embodiment of the invention, therefore do not provide its detailed description at this.
Fig. 6 is the cutaway view according to the reach in freezer of third embodiment of the invention.
Though the third embodiment of the present invention is similar to first embodiment, the 3rd embodiment provides a kind of reach in freezer, and it does not comprise refrigerating chamber 120, and includes only refrigerating chamber 110 and low temperature chamber 130.
Be provided with according to this, the air that is blown by hair-dryer 60 only circulates and passes refrigerating chamber 110.Be arranged at electrothermal module 50 hair- dryer 70 and 75 opposite sides operations on every side respectively, to produce the convection current of cooling air at this electrothermal module 50.
Installed in front at low temperature chamber 130 has door 135, leaks to refrigerating chamber 110 so that prevent the cooling air in low temperature chamber 130.Therefore, the temperature that keeps low temperature chamber 130 more equably.
Other structures of a third embodiment in accordance with the invention are similar to first embodiment's, therefore, do not provide its detailed description.
Fig. 7 is the cutaway view according to the reach in freezer of fourth embodiment of the invention.
Except electrothermal module 50 was connected to evaporimeter 40, a fourth embodiment in accordance with the invention was similar to the 3rd embodiment.
In this case, pass refrigerating chamber 110 by the part of air of evaporimeter 40 coolings by hair-dryer 60 supplies and circulation.Other parts of cooling air are cooled off once more by electrothermal module 50, then, circulate in low temperature chamber 130 by hair-dryer 70.
As can be seen from the above description, each of refrigerator and reach in freezer is all by cold-producing medium circular form refrigeration system and utilize the combination of the electrothermic type refrigeration system of peltier effect to construct.Therefore, if desired, can only move electrothermal module, only low temperature chamber be carried out the part cooling thus.
In the refrigerator and reach in freezer that comprise according to hybrid refrigeration structure of the present invention, cooled off once more by the air of the electrothermal module of independent operating cooling.Therefore, with utilize two independently the conventional example of kind of refrigeration cycle compare, refrigerator and reach in freezer have simple structure.
In the refrigerator and reach in freezer that comprise according to hybrid refrigeration structure of the present invention, be contained in P-type semiconductor and N-type semiconductor in the electrothermal module, make the thermoelectric cooling (be peltier effect) of electric current through semiconductor element by utilization, electrothermal module can produce cooling effect and come the air of cooling is cooled off once more.Therefore, with use two independently the conventional example of kind of refrigeration cycle compare, have the effect that reduces noise and reduce vibrations.
In the refrigerator and reach in freezer that comprise according to hybrid refrigeration structure of the present invention, electrothermal module is independent of the operation of cold-producing medium circular form refrigeration system.Therefore, electrothermal module can be installed on refrigerator or the reach in freezer desired position.Because electrothermal module is electric control, so it is easy to realize temperature control.
Though for illustration purpose, disclosed the preferred embodiments of the present invention, those skilled in the art can obtain various possible remodeling, increase and replacement under the situation of scope that does not break away from appended claims and disclosed and design.
Claims (19)
1, a kind of mixed refrigeration systems comprises:
Cold-producing medium circular form refrigeration system;
The electrothermic type refrigeration system, it comprises electrothermal module, this electrothermal module has heat absorption surface and heat delivery surface; And
First hair-dryer, it is arranged on the heat absorption surface and/or heat delivery surface of this electrothermal module;
Wherein, this electrothermal module cools off once more to the air by this cold-producing medium circular form refrigeration system cooling, and makes the air circulation of carrying out heat exchange with electrothermal module by this first hair-dryer.
2, mixed refrigeration systems as claimed in claim 1 is characterized in that, this cold-producing medium circular form refrigeration system is used to cool off the air in first predetermined space; And this electrothermal module is used for cooling off once more by this cold-producing medium circular form refrigeration system air cooling, that be arranged at second predetermined space in this first predetermined space.
3, mixed refrigeration systems as claimed in claim 2 is characterized in that, the heat absorption surface of this electrothermal module is exposed to this second predetermined space, and its heat delivery surface is exposed to this first predetermined space.
4, as each described mixed refrigeration systems in the claim 1 to 3, it is characterized in that, this mixed refrigeration systems also comprises second hair-dryer, and the evaporimeter in itself and this cold-producing medium circular form refrigeration system is adjacent to be provided with, so that by the air circulation of this evaporator cools; And this electrothermal module will be arranged in the circulating path by the air of this evaporator cools, so that this second hair-dryer will directly be conducted to this electrothermal module by the air of this evaporator cools.
As each described mixed refrigeration systems in the claim 1 to 3, it is characterized in that 5, this electrothermal module is attached on the evaporimeter in this cold-producing medium circular form refrigeration system.
6, mixed refrigeration systems as claimed in claim 4 is characterized in that, this electrothermal module is attached on this evaporimeter.
7, a kind of reach in freezer comprises:
Refrigerating chamber;
Low temperature chamber, it is arranged in this refrigerating chamber;
Cold-producing medium circular form refrigeration system is used for the air in this refrigerating chamber is cooled off;
The electrothermic type refrigeration system, it comprises electrothermal module, and this electrothermal module has heat absorption surface and heat delivery surface, and this electrothermal module is used for air in this low temperature chamber, that cooled off by this cold-producing medium circular form refrigeration system is cooled off once more; And
First hair-dryer, it is arranged on the heat absorption surface and/or heat delivery surface of this electrothermal module, so that the air circulation of carrying out heat exchange with this electrothermal module.
8, reach in freezer as claimed in claim 7, it is characterized in that this electrothermal module is installed on the wall that this low temperature chamber and this refrigerating chamber are separated, and extends through this wall, so that the heat absorption surface of this electrothermal module is exposed to this low temperature chamber, its heat delivery surface is exposed to this refrigerating chamber.
9, as claim 7 or 8 described reach in freezers, it is characterized in that this reach in freezer also comprises second hair-dryer, the evaporimeter in itself and this cold-producing medium circular form refrigeration system is adjacent to be provided with, so that by the air circulation of this evaporator cools; And this electrothermal module will be arranged in the circulating path by the air of this evaporator cools, so that this second hair-dryer will directly be conducted to this electrothermal module by the air of this evaporator cools.
As claim 7 or 8 described reach in freezers, it is characterized in that 10, this electrothermal module is attached on the evaporimeter in this cold-producing medium circular form refrigeration system.
11, reach in freezer as claimed in claim 9 is characterized in that, this electrothermal module is attached on this evaporimeter.
12, reach in freezer as claimed in claim 7 is characterized in that, a side relative with this electrothermal module of this low temperature chamber is equipped with door.
13, a kind of refrigerator comprises:
Refrigerating chamber;
Refrigerating chamber, it separates with refrigerating chamber;
Low temperature chamber, it is arranged in this refrigerating chamber;
Cold-producing medium circular form refrigeration system is used for the air in this refrigerating chamber and the refrigerating chamber is cooled off;
The electrothermic type refrigeration system, it comprises electrothermal module, and this electrothermal module has heat absorption surface and heat delivery surface, and this electrothermal module is used for air in this low temperature chamber, that cooled off by this cold-producing medium circular form refrigeration system is cooled off once more; And
First hair-dryer, it is arranged on the heat absorption surface and/or heat delivery surface of this electrothermal module, so that the air circulation of carrying out heat exchange with this electrothermal module.
14, refrigerator as claimed in claim 13, it is characterized in that this electrothermal module is installed on the wall that this low temperature chamber and this refrigerating chamber are separated, and extends through this wall, so that the heat absorption surface of this electrothermal module is exposed to this low temperature chamber, its heat delivery surface is exposed to this refrigerating chamber.
15, as claim 13 or 14 described refrigerators, it is characterized in that, this refrigerator also comprises second hair-dryer, and the evaporimeter in itself and this cold-producing medium circular form refrigeration system is adjacent to be provided with so that by the air of this evaporator cools at this refrigerating chamber and/or should the refrigeration indoor circulation; And this electrothermal module will be arranged in the circulating path by the air of this evaporator cools, so that this second hair-dryer will directly be conducted to this electrothermal module by the air of this evaporator cools.
16, refrigerator as claimed in claim 15 is characterized in that, also is provided with gas channel between this refrigerating chamber and this refrigerating chamber, and this second hair-dryer is arranged in this gas channel.
As claim 13 or 14 described refrigerators, it is characterized in that 17, this electrothermal module is attached on the evaporimeter in this cold-producing medium circular form refrigeration system.
18, refrigerator as claimed in claim 15 is characterized in that, this electrothermal module is attached on this evaporimeter.
19, refrigerator as claimed in claim 13 is characterized in that, a side relative with this electrothermal module of this low temperature chamber is equipped with door.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020040116240 | 2004-12-30 | ||
| KR1020040116240A KR20060077396A (en) | 2004-12-30 | 2004-12-30 | Refrigerator and hybrid cooling system of refrigerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1796900A true CN1796900A (en) | 2006-07-05 |
Family
ID=36337549
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2005101137553A Pending CN1796900A (en) | 2004-12-30 | 2005-10-14 | Hybrid cooling system, and refrigerator and freezer using the same |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20060144073A1 (en) |
| EP (1) | EP1677059A2 (en) |
| KR (1) | KR20060077396A (en) |
| CN (1) | CN1796900A (en) |
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Also Published As
| Publication number | Publication date |
|---|---|
| KR20060077396A (en) | 2006-07-05 |
| US20060144073A1 (en) | 2006-07-06 |
| EP1677059A2 (en) | 2006-07-05 |
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