CN101568773B - Cooling furniture comprising at least two thermally separate compartments - Google Patents

Cooling furniture comprising at least two thermally separate compartments Download PDF

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Publication number
CN101568773B
CN101568773B CN2007800475263A CN200780047526A CN101568773B CN 101568773 B CN101568773 B CN 101568773B CN 2007800475263 A CN2007800475263 A CN 2007800475263A CN 200780047526 A CN200780047526 A CN 200780047526A CN 101568773 B CN101568773 B CN 101568773B
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CN
China
Prior art keywords
expansion valve
compartment
refrigeration
refrigeration plant
evaporimeter
Prior art date
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Expired - Fee Related
Application number
CN2007800475263A
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Chinese (zh)
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CN101568773A (en
Inventor
P·鲍尔
M·姆尔齐格洛德
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BSH Hausgeraete GmbH
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BSH Bosch und Siemens Hausgeraete GmbH
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Publication of CN101568773A publication Critical patent/CN101568773A/en
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Classifications

    • 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
    • F25B5/00—Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity
    • F25B5/04—Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity arranged in series
    • 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
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/30—Expansion means; Dispositions thereof
    • F25B41/37—Capillary tubes
    • 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
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/30—Expansion means; Dispositions thereof
    • F25B41/385—Dispositions with two or more expansion means arranged in parallel on a refrigerant line leading to the same evaporator
    • 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
    • F25D11/022—Self-contained movable devices, e.g. domestic refrigerators with cooling compartments at different temperatures with two or more evaporators
    • 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
    • F25B2341/00—Details of ejectors not being used as compression device; Details of flow restrictors or expansion valves
    • F25B2341/06—Details of flow restrictors or expansion valves
    • F25B2341/062—Capillary expansion valves
    • 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
    • F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
    • F25B2400/16—Receivers
    • 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
    • F25B2600/00—Control issues
    • F25B2600/25—Control of valves
    • F25B2600/2513—Expansion valves
    • 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
    • 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
    • F25D2700/122—Sensors measuring the inside temperature of freezer compartments

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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

A cooling furniture (20) comprises at least two thermally separate compartments (21, 21') which are associated with respective evaporators (2, 2'). An expansion valve and said evaporators (2, 2') are connected in series in a refrigerant circuit (1). At least two states with different discrete flow coefficients can be adjusted on the expansion valve.

Description

The refrigeration plant that comprises at least two thermally separate compartments
Technical field
The present invention relates to the refrigeration plant that comprises at least two thermally separate compartments; Its evaporimeter is positioned at refrigerating circuit together with compressor and condenser; And in case receive the signal that needs refrigeration in the compartment; Just supply liquid refrigerant to compartment through compressor, the controlled by this refrigeration degree that helps produce refrigeration that is shaped on.And, the method that the present invention relates to be suitable for operating this refrigeration plant.
Background technology
Become known for a kind of different compartments of refrigeration plant is adjusted to the various embodiments of the refrigeration plant of different temperatures level.
As, the specification DE2350998 that Germany prints discloses the refrigeration plant that comprises single loop, and this loop is equipped with at low cost and is used for only entrance that cold-producing medium gets into evaporimeter.In any case, evaporimeter all links with refrigerating chamber and common refrigerating chamber at this, and they in series are arranged in the refrigerating circuit one by one.But this series connection setting of evaporimeter exists defective, the size that promptly must regulate each evaporimeter according to the refrigeration needs that exist in each compartment or relevant temperature requirement.So with regard to desirable efficiency, evaporator designs is not optimized, because evaporimeter is had to be designed to be and had big as far as possible surface for this reason.What especially have defective is that the temperature of each compartment can not be provided with independently of each other; If because under the situation of such refrigeration plant; Need freeze to being positioned at the compartment that cold-producing medium flows down trip, also freeze in the compartment to these compartment upper reaches so simultaneously.
Under the situation of the refrigeration plant that proposes to be equipped with a plurality of refrigeration compartment,, each controlled refrigerating circuit and each refrigeration compartment are linked in order to freeze to these compartments as far as possible independently of each other.Such refrigeration plant for example is described in not careful German patent application DE3508805A1 or DE4020537A1.In this case, the evaporimeter that links with each refrigeration compartment is arranged in the refrigerating circuit parallel with one anotherly.The inlet point that cooling agent gets into these evaporimeters has closable choke valve.These choke valves are controlled by a kind of thermoregulator individually, and if in refrigeration compartment separately, set up refrigeration demand, choke valve just is opened through this thermoregulator so.In the refrigeration plant of in DE3508805A1, describing, be provided for the holder of interim storage of liquids cooling agent at the upper reaches of the refrigerating circuit at the abutment of leading to evaporimeter.When needs more freezed, particularly when two evaporimeters moved simultaneously, extra cooling agent can be introduced in the refrigerating circuit through adding thermal storage therefrom selectively.In the refrigeration plant of in DE4020537A1, describing, the cooling agent that is introduced in the evaporimeter is extracted from condenser in several extraction point in an extraction point or while according to this demand.The shortcoming of this prior art is: use storage medium that consumes energy or the condenser that other is used inefficiently to control because the variable quantity of the cooling agent that each evaporimeter of switch causes.Because the double design of spraying system (valve, throttle capillary tube, spray site), the parallel connection setting of a plurality of evaporimeters have also caused many extra costs of Duoing than single loop.
Germany examines patent application DE4433712A1 and has described a kind of single loop, compare it with above system and can low-costly implement and more energy-conservation, but it is designed to make the temperature of each refrigeration compartment of refrigeration plant to be conditioned basically independently each other.In this case, a plurality of evaporimeters are set in series in refrigerating circuit, on the flow of coolant direction, evaporimeter and compartment freezer, refrigerated and common refrigeration compartment link.In order individually each compartment of refrigeration plant to be freezed, selectively control is introduced into the refrigerating capacity in the evaporimeter chain.Will be freezed in case only be positioned at the evaporimeter of the compartment freezer of condenser downstream, cold-producing medium is extracted and is stored in the holder temporarily from refrigerating circuit.This just causes the loss of cooling agent in the evaporimeter chain, so the evaporimeter of the common refrigeration compartment in downstream no longer freezes.But if this common refrigeration compartment will be freezed now, the cold-producing medium that then comes from compressor fails to be convened for lack of a quorum through making the refrigerating circuit switching-over and being transmitted through holder, and the amount that causes getting into thus the cold-producing medium stream of evaporimeter increases.Because this changement in this refrigerating circuit is controlled through magnetic valve; Even need cooling agent seldom; Also can use minimum energy to control effective amount of coolant, and in the same channels of evaporimeter, produce and interim store refrigerant and do not hinder the storage in the holder.Also to mention, when making refrigeration plant, cause the increase of extra cost through holder or the cooling agent supply line that links to each other that passes it.
Summary of the invention
The objective of the invention is to find to have the low-cost refrigeration plant of at least two heat insulation each other compartments and the method that is suitable for operating this refrigeration plant; Wherein have the compartment specified temp that only uses single shared cooling circuit to carry out and regulate, and manufacturing that can unify, modular evaporator part.
The method that is suitable for operating this refrigeration plant through a kind of refrigeration plant and a kind of realizes this purpose, and this equipment has claim 1 and 8 characteristic.The preferred embodiments of the present invention and expansion thereof require said like Rights attached thereto.
If refrigeration plant has at least two heat insulation each other compartments, evaporimeter and each compartment link.Expansion valve is disposed in series in the cooling circuit with these evaporimeters front and back.In creationary pattern, at least two kinds of states with different non-transient flow coefficients can be set at the expansion valve place.
Therefore the present invention is based on the change selected of the discharge coefficient of expansion valve in the cooling circuit of refrigeration plant.The cold-producing medium stream of the evaporimeter through refrigeration plant selectively is changed herein.In having single-circuit refrigeration plant, this has caused the change of liquid, gas cold-producing medium ratio in each evaporimeter, and has caused the effectively change of refrigerating capacity in the evaporimeter thus.
The size that the changeability of the refrigerating capacity of under this mode, obtaining means each evaporimeter is no longer confirmed according to the expection ratio between the refrigerating capacity required in each compartment commonly used in the refrigerating plant of in the past the evaporimeter that has series connection.Therefore consider the optimum energy utilization rate, can make the size of evaporimeter bigger.
The advantage of the present invention especially refrigerating appliance with multizone is relevant, and wherein each compartment such as compartment freezer, standard refrigeration compartment, bottom compartment and 0 ° of compartment are by supply independently and dynamically adjusted.
Because the refrigeration demand among the present invention in each compartment is relatively independent; Therefore the evaporimeter of refrigeration plant can or be regulated size by design freely; The extra earning potentiality of producing the refrigeration plant of multi partition increase, and the assembly of refrigeration plant (especially evaporimeter) as one man (Modularly) is used and enlarged known refrigeration plant under the relative prior art of this refrigeration plant in the advantage aspect efficiency and the control at this by a large amount of.
When making evaporimeter, need each refrigeration compartment of refrigeration plant be fabricated to separation, independent assembly and be used to be assemblied in refrigeration plant.On the contrary, especially preferred each evaporimeter of design and therefore create can be by rapid installation and evaporator module cheaply on the together support part.
In order selectively to control or regulate the cold-producing medium stream through evaporimeter, what at first can expect is that the design expansion valve is so that its discharge coefficient can be by adjustment continuously.The second, also make expansion valve have convertible discrete flow coefficient of discharge probably.Particularly in the embodiment of the refrigeration plant of heat insulation each other compartment, this discrete convertibility can be provided with very small amount.
Particularly preferably, in order in refrigeration plant, to regulate temperature, maybe the thermally separate compartments and the temperature sensor of refrigeration plant be linked.Then these temperature sensors are connected in the assessment loop, are used to send the signal of needs refrigeration in each compartment, the part of this assessment loop formation temperature adjuster.If one of temperature sensor is emitted in the signal that needs refrigeration at least one compartment in the refrigeration plant and gives this thermoregulator; Thermoregulator just is provided with the discharge coefficient of expansion valve, thereby the cold-producing medium that flows through is preferably evaporated in the compartment that refrigeration demand is detected.
Description of drawings
More function of the present invention and advantage embody with reference to accompanying drawing through the description of following exemplary embodiment.Wherein:
Fig. 1 illustrates the refrigeration plant that has expansion valve according to of the present invention.
Fig. 2 illustrates the possible embodiment of the changeable expansion valve of three steps that can be used in the refrigeration plant.
The specific embodiment
Fig. 1 with the embodiment shown in the by way of example in, the refrigeration plant that has two compartments just is to be used for simplified illustration.Obviously the invention is not restricted to such embodiment, those skilled in the art can convert it into to having the refrigeration plant of any amount compartment.
Fig. 1 illustrates a kind of have two compartments 21 that can be adjusted to different temperatures, 21 ' refrigeration plant 20.Compartment 21,21 ' each all link with an evaporimeter 2,2 '.These evaporimeters 2,2 ' arranged in series are positioned at refrigerating circuit 1, are positioned at the downstream of compressor 3, condenser 4 and expansion valve 5, and cold-producing medium flows through this refrigerating circuit.
Compartment 21,21 ' each all link with temperature sensor 12,12 '.Thereby these temperature sensors 12,12 ' are connected to the refrigeration plant signalling with assessment loop 11, and said assessment loop has formed the part of thermoregulator 10.If in one of compartment, detect refrigeration demand, thermoregulator 10 can activate compressor 3 through control line 14 in a known way, if detect further refrigeration demand it is stopped.In addition, when sending the refrigeration demand signal at least one compartment 12,12 ', thermoregulator 10 is through control line 13 activate inflation valves 5, thereby the adjusting latter's discharge coefficient is as the function of detected refrigeration demand.
As long as compartment 21,21 ' does not all have refrigeration demand and therefore makes compressor 3 stop, expansion valve 5 will be kept shut by thermoregulator 10.Because hindered the pressure balance between condenser 4 and the evaporimeter 5 like this, in the length of service of compressor 3, can practice thrift the energy of nearly 3%-10% according to the design of said refrigerating circuit.
When having very big refrigeration demand, get into evaporimeter 2,2 ' at once in order to guide a large amount of liquid refrigerants, preferably be used for the receiving fluids cold-producing medium in the cooling circuit 1 with holder 6 introducing condensers 4 downstream.If necessary, cold-producing medium can for example be introduced in the cooling circuit through adding thermal storage 6 at once from here.
If in compartment 21, one of 21 ', detect refrigeration demand; Said simple designs means that thermoregulator 10 is provided with one of two discrete non-transient state numerical value of discharge coefficient at expansion valve 5 places; If promptly compartment 21 ' domestic demand is freezed then is low value, be high value if compartment 21 domestic demands are freezed.
If the discharge coefficient of expansion valve 5 through thermoregulator 10 be set up very little, pass through cold-producing medium that compressor 3 extracts from evaporimeter 2,2 ' so than be directed into evaporimeter through expansion valve 52,2 ' more.Evaporimeter internal pressure step-down, and the temperature of evaporimeter step-down correspondingly.Under this mode, near the only evaporation exit point of expansion valve 5 in evaporimeter 2 ' of cold-producing medium, and in fact only have compartment 21 ' to be freezed.
If in the evaporimeter 2 of flow of coolant path away from expansion valve 5, have refrigeration demand, the discharge coefficient of expansion valve 5 is selected very greatly through thermoregulator 10.Because the cold-producing medium that extracts through compressor 3 is than being directed into evaporimeter 2,2 ' still less through expansion valve 5, the pressure in the evaporimeter raise and correspondingly the cold-producing medium boiling point also raise.If it is higher than the temperature of compartment 21 ', cold-producing medium flows through evaporimeter 2 ' Shi Buhui and is evaporated, and just evaporation in the evaporimeter that is in warmer compartment 21.So in fact only there is compartment 21 ' to be freezed.
If there is refrigeration demand in compartment 21 in 21 ' simultaneously, so just select the mean value of discharge coefficient.Therefore under any circumstance, in part of refrigerant is evaporated evaporimeter 21 ' in and remainingly in evaporimeter 21, evaporate.
If compartment 21 ' has super high refrigeration demand, for example when the commodity of the needs of the up-to-date storage of quick-frozen refrigeration, can select identical discharge coefficient mean value so.
According to the embodiment that does not illustrate in the drawings; Refrigeration plant has three or more compartments that freezes through the evaporimeter of series connection, and the expansion valve that is arranged at vaporizer upstream in the refrigerating circuit can changed at least and between the as many discharge coefficient value of the quantity of existing compartment.Under any circumstance, these values can be selected such that when setting one of these values, mainly in the evaporimeter relevant with this value, carry out the evaporation of cold-producing medium.The discharge coefficient value relevant with evaporimeter is high more, and then this associated evaporators is positioned at refrigerating circuit downstream more.
For required different flow coefficient value is set, can use the expansion valve of the discharge coefficient that has continuous controllable.It is very simple and can satisfy major applications that the expansion valve of a small amount of discharge coefficient separation value only can be set.
Refrigeration plant 20 shown in Fig. 1 only has two compartments 21,21 ' that will be freezed, if the non-transient flow coefficient of two differences of expansion valve 5 can be set, is enough so.Can realize the adjustment of very low cost like this, thus additional income.
Fig. 2 illustrates three possible embodiment of the expansion valve 5 that is applicable to this.All embodiment have bifurcated (as with T shape member) equally, and it gets into expansion valve 5 back bifurcateds through inlet in the main supply line 31 of refrigerating circuit be two parallel circuit paths.Blocking element 30 is added into and follows closely on this bifurcated these two parallel circuit paths afterwards.This blocking element; Have first switching stage, second switching stage and the 3rd switching stage like directional control valve; Two line routes all are blocked in first switching stage; In second switching stage in two line routes one open another and close, another paths is opened in the 3rd switching stage, also possible is that a said paths opens or closes in the 3rd switching stage.The exit of blocking element 30 is capillaries 34, and it directly enters evaporimeter 21 ' in a known way.
In the exemplary embodiment of the expansion valve 5 that Fig. 2 a) illustrates, the above-mentioned parallel line route that advances comprises the different length at the inlet upper reaches that are positioned at blocking element 30 and the capillary 32,33 of same cross-sectional.According to the conversion platform of blocking element 30, cold-producing medium stream under any circumstance, produces the discharge coefficient of different expansion valves 5 through capillary 32, capillary 33 or parallel through the two.
Having the capillary 42,43 of different cross section through use, at Fig. 2 b) embodiment of the expansion valve 5 that illustrates can realize identical effect.
At Fig. 2 c) in the expansion valve 5 that illustrates, capillary 52 only is set on one of two line routes; Another circuit branch 53 does not have significant flow resistance because length is short or the cross section is big.If blocking element is transformed into branch 53 with its opening, be equivalent to make main supply line 31 to be directly connected in the capillary 34 in the exit that is positioned at blocking element 30 like this.Therefore circuit branch 53 has formed lie around capillary 52.
The embodiment of multistage controlled expansion valve is not limited to form illustrated in fig. 2 certainly.Barrier film can replace these capillaries to be used in other spacious refrigerant lines.Can realize plural non-transient flow coefficient value; The directional control valve that has four kinds of settings wherein is provided; It possibly make up corresponding to two circuit branches " opening " and " obstruction " four, but perhaps the main supply line 31 in expansion valve 5 is split into the circuit branch of independent translation parallel more than two.

Claims (9)

1. a refrigeration plant (20) has heat insulation each other at least two compartments (21,21 '), and wherein compartment (21; 21 ') each all links with an evaporimeter (2,2 '), in this case; Series connection before and after expansion valve and said evaporimeter (2,2 ') are set in refrigerant loop (1), cold-producing medium flows through this refrigerating circuit; It is characterized in that, at least two kinds of states with different non-transient flow coefficients can be set at the expansion valve place
Wherein, said refrigeration plant comprises the device (10) of the third state that is used to be provided with expansion valve (5), and this third state is impervious for cold-producing medium.
2. refrigeration plant as claimed in claim 1 is characterized in that, the discharge coefficient of expansion valve (5) can be by continuous adjusting.
3. refrigeration plant as claimed in claim 1 is characterized in that, expansion valve (5) can be changed between the centrifugal pump of discharge coefficient.
4. refrigeration plant as claimed in claim 3 is characterized in that, the blocking element (30) that expansion valve comprises two parallel circuit packs (32,33,42,43,52,53) and is used for blocking down at one of two states one of two circuit packs.
5. like any described refrigeration plant in the aforementioned claim, it is characterized in that evaporimeter (2,2 ') is embodied on the identical support member.
6. like any described refrigeration plant in the aforementioned claim, it is characterized in that the holder (6) in the refrigerant loop (1) is positioned at the downstream of condenser (4), and be used to hold and/or temporary transient storage of liquids cold-producing medium.
7. like any described refrigeration plant in the aforementioned claim; It is characterized in that; Compartment that each is heat insulation and temperature sensor (12; 12 ') link, said temperature sensor (12,12 ') is connected in the assessment loop (11) that is used to send the refrigeration demand signal of the part of formation temperature adjuster (10).
An operation comprise at least two thermally separate compartments (21,21 ') refrigeration plant particularly like the method for the described refrigeration plant of one of claim 1-7 (20), wherein at the compartment (21 of refrigeration plant (20); 21 ') refrigeration demand in is to be detected; And, control with liquid refrigerant and to be used to the evaporimeter (2 that produces refrigeration and be connected in series to linking to each other with compartment (21,21 ') along with the variation of refrigeration demand; 2 ') supply; It is characterized in that the control of cold-producing medium supply realizes said state basis is at which compartment (21 at least through in controlled expansion valve (5), setting two kinds of states that have different non-transient flow coefficients; 21 ') detect refrigeration demand in and be selected
If all do not have refrigeration demand in the compartment (21,21 ') of refrigeration plant (20), then expansion valve (5) is held and cuts out.
9. method as claimed in claim 8; It is characterized in that; When in its evaporimeter compartment far away, detecting refrigeration demand apart from expansion valve; Set the high flow capacity coefficient of expansion valve (5), and when in the compartment of its evaporimeter, detecting refrigeration demand, set lower expansion valve discharge coefficient near expansion valve (5).
CN2007800475263A 2006-12-22 2007-11-22 Cooling furniture comprising at least two thermally separate compartments Expired - Fee Related CN101568773B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102006061091.1 2006-12-22
DE102006061091A DE102006061091A1 (en) 2006-12-22 2006-12-22 Refrigerator with at least two thermally separated compartments
PCT/EP2007/062709 WO2008077697A2 (en) 2006-12-22 2007-11-22 Cooling furniture comprising at least two thermally separate compartments

Publications (2)

Publication Number Publication Date
CN101568773A CN101568773A (en) 2009-10-28
CN101568773B true CN101568773B (en) 2012-07-25

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CN2007800475263A Expired - Fee Related CN101568773B (en) 2006-12-22 2007-11-22 Cooling furniture comprising at least two thermally separate compartments

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US (1) US20100089079A1 (en)
EP (2) EP2426434A1 (en)
CN (1) CN101568773B (en)
AT (1) ATE549585T1 (en)
DE (1) DE102006061091A1 (en)
ES (1) ES2381655T3 (en)
RU (1) RU2009126091A (en)
WO (1) WO2008077697A2 (en)

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WO2008077697A3 (en) 2008-09-04
EP2426434A1 (en) 2012-03-07
CN101568773A (en) 2009-10-28
ATE549585T1 (en) 2012-03-15
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WO2008077697A2 (en) 2008-07-03
ES2381655T3 (en) 2012-05-30

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