CN104160225B - Electric refrigerator and method of work thereof - Google Patents

Electric refrigerator and method of work thereof Download PDF

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Publication number
CN104160225B
CN104160225B CN201380011040.XA CN201380011040A CN104160225B CN 104160225 B CN104160225 B CN 104160225B CN 201380011040 A CN201380011040 A CN 201380011040A CN 104160225 B CN104160225 B CN 104160225B
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CN
China
Prior art keywords
mentioned
peristome
wind path
air
spatial
Prior art date
Application number
CN201380011040.XA
Other languages
Chinese (zh)
Other versions
CN104160225A (en
Inventor
田岛博志
久保田顺一
Original Assignee
海尔集团公司
海尔亚洲国际株式会社
青岛海尔股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to JP2012069008A priority Critical patent/JP5847626B2/en
Priority to JP2012-069008 priority
Application filed by 海尔集团公司, 海尔亚洲国际株式会社, 青岛海尔股份有限公司 filed Critical 海尔集团公司
Priority to PCT/CN2013/073215 priority patent/WO2013143449A1/en
Publication of CN104160225A publication Critical patent/CN104160225A/en
Application granted granted Critical
Publication of CN104160225B publication Critical patent/CN104160225B/en

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT COVERED BY ANY OTHER SUBCLASS
    • F25D11/00Self-contained movable devices, e.g. domestic refrigerators
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT COVERED BY ANY OTHER SUBCLASS
    • F25D17/00Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/04Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT COVERED BY ANY OTHER SUBCLASS
    • F25D17/00Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/04Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
    • F25D17/042Air treating means within refrigerated spaces
    • F25D17/045Air flow control arrangements
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT COVERED BY ANY OTHER SUBCLASS
    • F25D17/00Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/04Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
    • F25D17/06Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
    • F25D17/062Arrangements 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
    • F25D17/065Arrangements 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
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT COVERED BY ANY OTHER SUBCLASS
    • F25D21/00Defrosting; Preventing frosting; Removing condensed or defrost water
    • F25D21/06Removing frost
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT COVERED BY ANY OTHER SUBCLASS
    • F25D21/00Defrosting; Preventing frosting; Removing condensed or defrost water
    • F25D21/06Removing frost
    • F25D21/08Removing frost by electric heating
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT COVERED BY ANY OTHER SUBCLASS
    • F25D2317/00Details 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
    • F25D2317/06Details 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
    • F25D2317/067Details 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 air ducts

Abstract

A kind of electric refrigerator and method of work thereof.When defrosting or cooling operations prevent heating installation from flowing in storeroom when starting, and prevent the heat transmission from cooling room to storeroom, the temperature in storeroom risen and suppresses relatively low.Utilize spacer body (40) to divide a part for supply wind path (16), form the spatial portion (14) being connected with cooling room (13) by peristome of supplying gas (13a).And, the spatial portion (14) separated region with the above-mentioned supply wind path (16) marked off arranges opening and closing the 1st peristome (19) freely, opening and closing the 2nd peristome (20) freely is set in above-mentioned spatial portion (14) with the separated region of return wind path (29) or cooling room (13).Thereby, it is possible to reduce the heat transmission from cooling room (13) to storeroom (4)~(6).Additionally, by the 1st peristome (19) is set to off closed state, 2nd peristome (20) is set to open mode, undertaken cooling down and being blown by pressure fan (30) by vaporizer (32), thus, the air of spatial portion (14) and cooling room (13) can be made to circulate and cool down as circulation air path spatial portion (14), adjust its temperature.

Description

Electric refrigerator and method of work thereof

Technical field

The present invention relates to a kind of electric refrigerator of cooling preservation food etc. in storeroom, more particularly, it relates to a kind of electric refrigerator that suppress relatively low that when defrosting operation or when cooling operations starts, the temperature in storeroom can be risen.

Background technology

In this electric refrigerator, there are the following problems: when vaporizer (or claim cooler) is gone frost, utilizes the heating installation around the vaporizer that Defrost heater heat to flow in storeroom, the temperature rising in storeroom.Therefore, the method in storeroom is entered, it is known that shield is set in cooling air duct, defrosting operation is closed the method for this shield and fan is arranged air door as the heating installation prevented in defrosting operation, close the method (such as, patent documentation 1) of this air door.

Fig. 9 (A) indicates that the front view of the wind path structure of the electric refrigerator 100 disclosed in patent documentation 1.In the electric refrigerator 100 of involved prior art, possesses inlet vane 105,106,107,108 respectively carrying in by the cool-air feed wind path 101,102,103,104 of the air after evaporator cools to storeroom.It addition, for making air possess export the breeze door 113,114,115 respectively from the cold air return wind path 109,110,111 in storeroom Returning evaporimeter portion.It addition, possess export the breeze door 116 in the cold air return wind path (not shown) of refrigerating chamber 112.Further, in defrosting operation, all or part of above-mentioned inlet vane 105~108 and export the breeze door 113~116 is closed.

Fig. 9 (B) indicates that the figure of fan 117 periphery of electric refrigerator 100.In electric refrigerator 100, fan 117 is provided with air door 118, prevents heating installation from flowing into cool-air feed wind path 101~104 by closing this air door 118 when removing frost.

It addition, as the example of other prior aries, it is known that after defrosting operation terminates, make blower be deferred to vaporizer and begin to cool down start working afterwards (such as, patent documentation 2).

In the electric refrigerator disclosed in patent documentation 2, after going the frost end of job, only make compressor operating to reduce the temperature of vaporizer when making fan keep and stopping, making to be full of the heating installation cooling of cooling room, after postponing a period of time from compressor operating, make fan rotate with transporting cold-air.Thus, the temperature reducing the refrigerating chamber that defrosting operation causes rises.

Prior art literature

Patent documentation

Patent documentation 1:(Japan) JP 2009-250476 publication (the 4th~5 page, Fig. 4,5)

Patent documentation 2:(Japan) JP 2002-195729 publication (page 4)

But, as it is shown in figure 9, there are the following problems in being provided with the electric refrigerator of prior art of air door or adjustable plate: in defrosting operation, it is prevented from the heating installation for defrosting and flows into storeroom, but, after defrosting operation terminates, after cooling operations starts, the temperature in storeroom can rise.That is, in the electric refrigerator of described prior art, terminating at defrosting operation, when beginning to cool down operation, in the air flow storeroom in the cooling room warmed owing to removing frost or wind path, the temperature in storeroom can rise.

It addition, after defrosting operation terminates, under the out-of-work state of pressure fan, vaporizer proceeds by cooling, in the method that the air that cooling is indoor is cooled down, temperature in storeroom after can cooling work being started rises and suppresses relatively low, but, its effect is also insufficient.Namely, when out-of-blast machine, by making evaporator operation, air cooling around vaporizer and below can be made, but, owing to carrying out under natural convection from vaporizer to the conduction of heat of air, accordingly, it is difficult to accumulating in the air above vaporizer or the air in wind path cools down.Therefore, when beginning to cool down operation, the relatively warm air above cooling room or in wind path can flow in storeroom.

Additionally, vaporizer is utilized to carry out the method cooled down there is a problem in that making pressure fan not place of working: air side is to carry out conduction of heat under the such condition of free convection, therefore, heat transfer efficiency is poor, and the cool time (pre-coo time) starting to air-supply is elongated.Therefore, cannot cool down in storeroom during this section, accordingly, because the heat from outside heat invasion or from vaporizer side is transmitted, can cause that the temperature in storeroom rises.

When making the variations in temperature in storeroom bigger due to the temperature rising in such storeroom, particularly, in refrigerating chamber, when producing temperature difference between food and the storeroom in freezing, produce the water sublimed owing to steam pressure reduction causes and make the such problem of food drying (so-called freeze burn).It addition, when causing the defrosting of food due to the bigger variations in temperature in storeroom, refreeze, the ice crystal of food product becomes relatively big, cause the cell destroyed (so-called juice loss) of food.

Summary of the invention

The present invention completes in view of the above problems, its object is to: a kind of electric refrigerator is provided, its can when defrosting or cooling operations prevent heating installation from flowing in storeroom when starting, and prevent the heat transmission from cooling room to storeroom, the temperature in storeroom risen and suppresses relatively low.

The present invention provides a kind of electric refrigerator, has: storeroom;Supply wind path, it is used for making the above-mentioned storeroom of air flow;Returning wind path, it is for making the above-mentioned air from above-mentioned storeroom flow through;Cooling room, it has the peristome and for making what the above-mentioned air from above-mentioned return wind path flowed into return gas peristome of supplying gas for making above-mentioned air flow out to above-mentioned supply wind path;Vaporizer, it is located at the inside of above-mentioned cooling room, for cooling down from the above-mentioned above-mentioned air returning the inflow of gas peristome;And pressure fan, it is arranged on above-mentioned supplies gas on peristome, it is characterised in that, in this electric refrigerator, having in the outside of above-mentioned cooling room: spacer body, it at least divides a part for above-mentioned supply wind path, forming spatial portion, this spatial portion is connected with above-mentioned cooling room by above-mentioned peristome of supplying gas;Opening and closing the 1st peristome freely, it is located in the separated region of above-mentioned spatial portion and the above-mentioned supply wind path marked off;And the 2nd peristome that opening and closing is freely, it is located in the separated region by above-mentioned spatial portion and above-mentioned return wind path or above-mentioned cooling room.

Electric refrigerator according to the present invention, utilizes spacer body to divide a part for supply wind path, in the outside of cooling room, has namely been previously formed spatial portion, therefore, it is possible to reduce the heat transmission from cooling room to storeroom.That is, between refrigerating chamber and storeroom, configure above-mentioned spatial portion and the above-mentioned supply wind path marked off, therefore, cool down room compared with the situation of storeroom with merely with divider walls, it is possible to increase the thermal resistance between cooling room and storeroom.As a result of which it is, such as, when defrosting operation etc., it is possible to when the temperature cooling down room is higher, the temperature of storeroom is risen and suppress relatively low.

Additionally, electric refrigerator according to the present invention, owing to having opening and closing the 1st peristome freely at the separated region of above-mentioned spatial portion and the above-mentioned supply wind path marked off, therefore, by closing above-mentioned 1st peristome, it is possible to the relatively warm air preventing cooling indoor flows into storeroom.As a result of which it is, be prevented from heating installation to flow into the temperature rising of the storeroom caused.

Additionally, the electric refrigerator of the present invention is owing to having opening and closing the 2nd peristome freely at above-mentioned spatial portion and the separated region returning to wind path or cooling room, therefore, when the air themperature of above-mentioned spatial portion or cooling room is higher, it is possible to make above-mentioned air return to cooling room and not flow into storeroom.That is, the 1st peristome being set to off closed state, the 2nd peristome is set to open mode, by making pressure fan work, the air flowed out from the peristome of supplying gas of cooling room flows through above-mentioned spatial portion, returns to cooling room by the 2nd peristome.

Further, as it has been described above, when the air that above-mentioned spatial portion makes cooling room as air path circulates, vaporizer cool down, thereby, it is possible to effectively cool down above-mentioned spatial portion and the air of cooling room.As a result of which it is, the temperature of the air of above-mentioned spatial portion and cooling room can be adjusted and do not make the temperature of storeroom increase.

Further, afterwards, the 1st peristome is set to open mode, the 2nd peristome is set to off closed state, as mentioned above, it is possible to the above-mentioned air adjusted to predetermined temperature through supercooling is supplied to storeroom.As a result of which it is, can the variations in temperature of storeroom be suppressed less.

Additionally, spacer body involved in the present invention is configured to divide freezing supply wind path and above-mentioned spatial portion, therefore, relatively low for cold insulation temperature, and it is particularly susceptible to the refrigerating chamber from the hot impact cooling down room, can suppressing less by its variations in temperature, this freezing supply wind path is used for making cooling air flow refrigerating chamber.

It addition, the electric refrigerator of the present invention is for making to possess wind path shutter in the cold preservation of cooling air flow cold room supply wind path, therefore, by above-mentioned wind path shutter is set to off closed state, it is possible to prevent heating installation from flowing into cold room.

Accompanying drawing briefly describes

Fig. 1 is the outward appearance front view of the electric refrigerator involved by embodiments of the present invention.

Fig. 2 indicates that the side sectional view of the Sketch of the electric refrigerator involved by embodiments of the present invention.

Fig. 3 is an illustration for the front view of the cooling air duct of the electric refrigerator involved by embodiments of the present invention.

Fig. 4 indicates that the side sectional view of the structure of the cooling room periphery of the electric refrigerator involved by embodiments of the present invention.

Fig. 5 indicates that the side sectional view of the variation of the electric refrigerator involved by embodiments of the present invention, and wherein, (A) is the side sectional view of the 1st peristome periphery, and (B) is the side sectional view of the 2nd peristome periphery.

Fig. 6 indicates that the control sequential chart that the defrosting operation of the electric refrigerator involved by embodiments of the present invention controls.

Fig. 7 indicates that the side sectional view of the structure of the cooling room periphery of the electric refrigerator involved by other embodiments of the present invention.

Fig. 8 indicates that the control sequential chart that the defrosting operation of the electric refrigerator involved by other embodiments of the present invention controls.

Fig. 9 represents the example of the electric refrigerator of prior art, and wherein, (A) is front view, and (B) indicates that the figure of fan circumference.

Label declaration

1: electric refrigerator;2: body of thermal insulating box;3: cold room;4: ice-making compartment;5: upper strata refrigerating chamber;6: refrigerating chamber;7: vegetable compartment;13: cooling room;13a: peristome of supplying gas;13b: return gas peristome;14: spatial portion;15: cold preservation supply wind path;16: freezing with supply wind path;18: wind path shutter;19: the 1 peristomes;20: the 2 peristomes;30: pressure fan;32: vaporizer;33: Defrost heater;40: spacer body.

Detailed description of the invention

Below, with reference to the accompanying drawings the electric refrigerator involved by the 1st embodiment of the present invention is described in detail.

Fig. 1 indicates that the Sketch front view of the electric refrigerator 1 involved by present embodiment.Fig. 2 is the side sectional view of electric refrigerator 1.Fig. 3 is the figure of the cooling air duct structure schematically showing electric refrigerator 1.Fig. 4 indicates that the side sectional view of the structure of cooling room 13 periphery of electric refrigerator 1.Fig. 5 indicates that the side sectional view of the variation of electric refrigerator 1, and wherein, (A) represents that the periphery of the 1st peristome 19, (B) represent the periphery of the 2nd peristome 20.Fig. 6 indicates that the control sequential chart of the summary of the defrosting operation control of electric refrigerator 1.

As it is shown in figure 1, the electric refrigerator 1 involved by present embodiment possesses the body of thermal insulating box 2 as main body, at the storeroom being internally formed storage food etc. of this body of thermal insulating box 2.The inside of storeroom is divided into multiple accommodating chamber according to storage temperature or purposes.The configuration of each accommodating chamber is as follows: the superiors are cold room 3, and next layer of left side of cold room 3 is ice-making compartment 4, and next layer of right side of cold room 3 is upper strata refrigerating chamber 5, and next layer again of cold room 3 is refrigerating chamber 6, and orlop is vegetable compartment 7.

The front openings of body of thermal insulating box 2, on the above-mentioned peristome corresponding with above-mentioned each accommodating chamber 3,4,5,6,7, opening and closing is provided with insulated door 8a, 8b, 9,10,11,12 freely respectively.Refrigerating-chamber door 8a, 8b are split and block before cold room 3, and the bottom, upper left of refrigerating-chamber door 8a and the upper right bottom of refrigerating-chamber door 8b are rotatably supported by body of thermal insulating box 2.It addition, ice-making compartment door 9, refrigerating chamber door 10, refrigerating chamber door 11 and vegetable compartment door 12 integrally perform assembling with accommodation container described later respectively, the front of electric refrigerator 1 is pulled out by body of thermal insulating box 2 and supports freely.

As in figure 2 it is shown, as electric refrigerator 1 main body body of thermal insulating box 2 by above having the outer container 2a of steel plate of peristome, have with this outer container 2a in this outer container 2a that arrange with gap, above having the plastic interior case 2c of peristome, in the above-mentioned outer container 2a gap with interior case 2c filling-foam and the adiabator 2b of polyurathamc that obtains is constituted.It addition, the back face wall part at body of thermal insulating box 2 possesses vacuum heat insulation materials 2d.

As it has been described above, storeroom is divided into multiple accommodating chamber, cold room 3 and between the ice-making compartment 4 and upper strata refrigerating chamber 5 of its lower floor insulated partition wall 34 separate.It addition, the partition wall (attached not shown) being formed with cold air circulation blow vent freely between ice-making compartment 4 and upper strata refrigerating chamber 5 separates.Further, the partition wall 35 (attached not shown) being formed with cold air circulation blow vent freely between ice-making compartment 4 and upper strata refrigerating chamber 5 and the refrigerating chamber 6 being located at its lower floor separates.Further, between refrigerating chamber 6 and vegetable compartment 7, insulated partition wall 36 separates.

Further, it is equipped with the grillage 42 for holding food etc. in the inside of cold room 3 or holds container 43.It addition, be provided with the accommodation truss 44,45 holding container for drink etc. inside the case of refrigerating-chamber door 8a, 8b.Further, the accommodation container 46 that is provided with in other each accommodating chamber 4,5,6,7 pulling out with being integrated with each heat insulation layer door 9,10,11,12,47a, 47b, 48.Additionally, the accommodation container being disposed in ice-making compartment 4 is not shown in the accompanying drawings.It addition, to be also equipped with in accompanying drawing unshowned other the accommodation frame of each accommodating chamber 3~7 in storeroom, hold container etc., for instance, in cold room 3, it is also configured with storing the container etc. of the water for ice making.

It addition, the lower rearward side of cold room 1 is additionally provided with Machine Room 49.Machine Room 49 is configured with the parts such as the compressor 31 of compression refrigerant, radiator (not shown), radiator fan (not shown).Utilize coolant piping be sequentially connected with compressor 31, radiator, as the not shown capillary tube of decompressing unit, vaporizer 32, constitute the refrigerating circuit of steam compression type.Additionally, in the electric refrigerator 1 involved by present embodiment, use iso-butane (R600a) as coolant.Alternatively, it is also possible to it is first as decompression band to use the decompressing unit of other forms such as such as temperature-type expansion valve, electronic expansion valve, constant pressure expansion valve to substitute capillary tube.

After cold room 3 and end face be formed with the supply wind path 15 supplying wind path as cold preservation, this supplies the supply wind path 15 inside by the air importing cold room 3 after utilizing vaporizer 32 to cool down of wind path as cold preservation.Supply wind path 15 is the space being pressed from both sides every by the interior case 2c of plastic wind path partition wall 38 with body of thermal insulating box 2 and obtaining.It addition, be formed on wind path partition wall 38 for providing the blow-off outlet 21 of the inside of cold room 3 by the cold air of circulation in supply wind path 15.

Equally, after ice-making compartment 4 and upper strata refrigerating chamber 5, have, with end face and the formed behind of refrigerating chamber 6, the supply wind path 16 supplying wind path as freezing.Supply wind path 16 is synthesized resinous wind path partition wall 39 with each accommodating chamber 4~6 and separates.Further, wind path partition wall 39 is formed makes cold air flow to the blow-off outlet 22 of ice-making compartment 4, make the cold airflow blow-off outlet 23 to upper strata refrigerating chamber 5 and make cold air flow to the blow-off outlet 24 of refrigerating chamber 6.Additionally, each blow-off outlet 22~24 is arranged in the position that effectively can provide cold air to the food etc. being contained in accommodation container 46,47a, 47b.

It addition, be formed on the back side of supply wind path 16, i.e. rear side and supply the spatial portion 14 that wind path 16 separates.Supply wind path 16 is synthesized resinous spacer body 40 with spatial portion 14 and separates.

It addition, supply wind path 15 is connected by wind path shutter 18 with spatial portion 14.Wind path shutter 18 is by being set to while the plate body being rotated the open-close lid that the earth's axis freely supports and the motor shield driving motor to constitute.Additionally, wind path shutter 18 is not limited to aforesaid way, it would however also be possible to employ such as use slidingtype opening-closing plate and the opening and closing device of other forms such as the wind path shutter that obtains as wind path shutter 18.By opening and closing wind path shutter 18, it is possible to whether making air be adjusted from spatial portion 14 flow direction supply wind path 15.It addition, by making wind path shutter 18 carry out suitable on-off action, it is possible to regulate the flow of the cold air being supplied to cold room 3.

It addition, be provided with in refrigerating chamber 6 for make air return cooling room 13 return QI KOU 27, for same purpose, be provided with in vegetable compartment 7 and return QI KOU 28.

As it is shown on figure 3, provide the supply wind path 15 of cold air to be configured to cold room 3: cold air is delivered to topmost by the central part at cold room 3, makes cold air fall from both sides afterwards.Thereby, it is possible to effectively provide cold air to the inside entirety of cold room 3.

It addition, supply wind path 15 possesses the branch's wind path from central part branch to the left and right accordingly with the blowing mouth 21 formed at the adjacent upper part holding container 43 (with reference to Fig. 2).Thereby, it is possible to effectively the inside holding container 43 is cooled down.

It addition, the electric refrigerator 1 involved by present embodiment possesses for making cold air flow to the link wind path 17 of vegetable compartment 7 from the inside of electric refrigerator 3.It is formed in cold room 3 side linking wind path 17 and returns QI KOU 26 for what the cold air in cold room 3 flowed into, be provided with the blow-off outlet 25 that cold air is provided to vegetable compartment 7 in vegetable compartment 7 side.

As shown in Figure 4, in the inside of body of thermal insulating box 2, cooling room 13 is located at the rear side of spatial portion 14.Further, cooling room 13 and spatial portion 14 are synthesized resinous cooling room partition wall 37 and separate.

The inside of cooling room 13 is equipped with the air cooled vaporizer 32 for making circulation.Vaporizer 32 involved by present embodiment is that the inside of the pipe as heat pipe is set to refrigerant flow, by outer for the pipe so-called fin-tube heat exchanger being set to air flow circuit.In vaporizer 32, at the internal liquid refrigerant evaporation of above-mentioned heat pipe, thus, the air outside pipe is made to cool down.Additionally, the heat exchanger of other forms such as the heat exchanger such as employing flat perforated pipe or special pipe can certainly be adopted as vaporizer.

It addition, below vaporizer 32, be provided with Defrost heater 33 as the defrosting unit melting, removing the frost being attached on vaporizer 32.Defrost heater 33 is the heater of the electric resistor heating type with glass tubing protection.In addition it is also possible to adopt such as steam not use other Defrost modes of electric heater as defrosting unit except mist etc..

It addition, before the top of cooling room 13, namely the face of spatial portion 14 side is formed with the peristome 13a that supplies gas sent for the cold air obtained being cooled down by vaporizer 32.On the other hand, cooling room 13 formed below for by from storeroom return cold air suck cooling room 13 inside return gas peristome 13b.Further, return gas peristome 13b and be connected with the QI KOU 28 of returning returning QI KOU 27 and vegetable compartment of above-mentioned refrigerating chamber 6 by returning wind path 29 (29a, 29b).

It addition, the above-mentioned peristome 13a that supplies gas is provided with the pressure fan 30 for making circulating cold air.Pressure fan 30 is to have revolving propeller fan, fan motor (not shown) and be formed with the axial fan of housing (not shown) of wind-tunnel.In addition it is also possible to adopt such as do not possess the propeller fan of form of shell and the combination of motor or sirocco fan etc. the pressure fan of other forms as pressure fan 30.

At this, as it has been described above, spacer body 40 divides a part for supply wind path 16, formed by the peristome 13a spatial portion 14 connected with cooling room 13 of supplying gas.Specifically, plastic spacer body 40 is to be arranged on before cooling room partition wall 37 in the way of this circumference abuts with cooling room partition wall 37, and the mode that this plastic spacer body 40 is concave shape with the face relative with cooling room 13 is configured to reservation shape.Further, the plastic wind path partition wall 39 being configured to reservation shape is arranged on before spacer body 14 in the way of this circumference abuts with cooling room partition wall 37.

Thus, after storeroom 4~6 by utilize wind path partition wall 39 and spacer body 40 press from both sides every in the way of form supply wind path 16, and, face behind, by utilize spacer body 40 and cooling room partition wall 37 press from both sides every in the way of form spatial portion 14.So, in the electric refrigerator 1 involved by present embodiment, owing to having the supply wind path 16 and spatial portion 14 marked off between storeroom 4~6 and cooling room 13, it is possible to reduce the heat transmission from cooling room 13 to storeroom 4~6.

Additionally, there is various deformation in abutted position or the joint method of spacer body 40, cooling room partition wall 37 and wind path partition wall 39.For example, it is also possible to adopt the structure making the circumference of each partition member 37,39,40 with abutting below interior case 2c (with reference to Fig. 2) medial surface of body of thermal insulating box 2 or adiabatic partition wall 34.

Alternatively, it is also possible to add the heat insulating member (not shown) of such as expanded polystyrene (EPS) (PS) thin slice or polyethylene foamed (PE) thin slice etc. on spacer body 40, cooling room partition wall 37 and wind path partition wall 39.Thereby, it is possible to the thermal resistance increased between cooling room 13 and storeroom 4~6, reduce the heat transmission from cooling room 13 to storeroom 4~6 further.

It addition, the spacer body 40 as supply wind path 16 with the separated region of spatial portion 14 is provided with opening and closing the 1st peristome 19 freely.It addition, spatial portion 14 and the separated region of return wind path 29 are provided with opening and closing the 2nd peristome 20 freely.In the present embodiment, same with above-mentioned wind path shutter 18 adopt so-called motor shield as the 1st peristome the 19 and the 2nd peristome 20.Additionally, it is of course also possible to use the opening and closing device of other forms as the 1st peristome the 19 and the 2nd peristome 20.

So, electric refrigerator 1 involved by present embodiment possesses spatial portion the 14, the 1st peristome the 19 and the 2nd peristome 20, therefore, by the 1st peristome the 19 and the 2nd peristome 20 is all set to off closed state, the peristome 13a that supplies gas can be blocked, it is prevented that the heating installation of cooling room 13 flows into storeroom 4~6 relative to supply wind path 16.

Additionally, electric refrigerator 1 involved by present embodiment possesses wind path shutter 18 in the supply wind path 15 connected with spatial portion 14, therefore, by wind path shutter 18 is set to off closed state, supply wind path 15 can be blocked, it is prevented that the heating installation of cooling room 13 flows into cold room 3.

Additionally, by the 1st peristome 19 and wind path shutter 18 are all set to off closed state, 2nd peristome 20 is set to open mode, thus, from supplying gas, the peristome 13a air flowed out flows successively through spatial portion the 14, the 2nd peristome 20, returns wind path 29 and return gas peristome 13b, it is possible to form the air path returning to cooling room 13.That is, spatial portion 14 becomes the air path for making the air of cooling room 13 not be circulated with not flowing into storeroom.

Additionally, as shown in Fig. 5 (A), wind path shutter 18 can also be located at spatial portion 14 and the separated region of supply wind path 15 and not be located at the inside of supply wind path 15.In this case, it is also possible to form separated region by a part for spacer body 40 or cooling room partition wall 37 being shaped for predetermined shape, alternatively, it is also possible to use partition member.

It addition, as shown in Fig. 5 (B), it is also possible to the 2nd peristome 20 is located on the cooling room partition wall 37 of spatial portion 14 and the separated region of cooling room 13.Utilize this structure, it is also possible to make air flow to cooling room 13 from spatial portion 14 by the 2nd peristome 20 is set to open mode.

It addition, the electric refrigerator 1 involved by present embodiment possesses performs predetermined computing to control each component devices, unshowned various sensors, display, illumination etc. in unshowned control device and other accompanying drawing in accompanying drawing.

Then, the action of the electric refrigerator 1 involved by present embodiment is illustrated.First, the cooling operations of cold storage room is illustrated.In cooling operations, the 1st peristome 19 is set to open mode, the 2nd peristome 20 is set to off closed state, according to the cooling load of cold room suitably opening and closing wind path shutter 18.

First, utilizing above-mentioned steam compression type refrigerating circuit, the air of convection current supercooling room 13 cools down.That is, utilize the compressor 31 shown in Fig. 2 by the state of the refrigerant vapor boil down to High Temperature High Pressure of low-temp low-pressure, utilize not shown radiator that it is carried out heat release.Then, utilize the liquid coolant throttling expansion making to utilize radiator to carry out exothermic condensation as the not shown capillary tube of decompressing unit and obtain, flow to vaporizer 32.In vaporizer 32, the liquid coolant of low-temp low-pressure and air carry out heat exchange and evaporate.As a result of which it is, the air in cooling room 13 is cooled due to the evaporation latent heat of coolant.The steam coolant utilizing vaporizer 32 to evaporate and to obtain is compressed by again sucking compressor 31.Continuously repeat action described above, utilize the vaporizer 32 of refrigerating circuit that air is cooled down.

As shown in Figures 2 to 4, utilize vaporizer 32 cooling after air by pressure fan 30 from cooling room 13 the peristome 13a that supplies gas discharged to spatial portion 14.

Further, a part for the cooling air being discharged to spatial portion 14 is adjusted to suitable flow by wind path shutter 18, flows to supply wind path 15, and provides cold room 3 from blow-off outlet 21.Thereby, it is possible at a proper temperature the food etc. of the inside being stored at cold room 3 is carried out cooling preservation.

The cold air providing the inside of cold room 3 flows to link wind path 17 from returning QI KOU 26, and is provided to vegetable compartment 7 from blow-off outlet 25.Further, in vegetable compartment 7, the cold air of circulation returns to the inside of cooling room 13 from returning the QI KOU 28 gas peristome 13b that returns through return wind path 29b, cooling room 13.At this, again cooled down by vaporizer 32.

On the other hand, be discharged to spatial portion 14 cooling air in part through the 1st peristome 19, flow to supply wind path 16, by blow-off outlet 22,23, be supplied to ice-making compartment 4 and upper strata refrigerating chamber 5.Further, this cold air flows to refrigerating chamber 6 by forming the peristome on partition wall 35.

Further, a part for the cooling air flowing to supply wind path 16 by the 1st peristome 19 is provided refrigerating chamber 6 from blow-off outlet 24.And the air within refrigerating chamber 6 is from returning QI KOU 27 via returning wind path 29a, flow to the inside of cooling room 13 by cooling down the gas peristome 13b that returns of room 13.As described above, utilize the air after vaporizer 32 cooling at storeroom internal recycle, carry out the cooling preservation of food etc..

Then, the control sequential chart according to Fig. 6, suitably with reference to Fig. 2 and Fig. 4, action during to defrosting operation illustrates.When continuing cooling operations, frost can be attached on the air side thermal conductive surface of vaporizer 32, hinders conduction of heat, blocks air flow circuit.Therefore, frosting is judged by the not shown device that controls according to the lower degradation of evaporator refrigerant temperature, or utilizes defrosting timer etc. to judge, to start the defrosting operation for removing the frost being attached on vaporizer 32.

The time T0 of Fig. 6 represents the moment that defrosting operation starts.When carrying out defrosting operation, the not shown device that controls stops the work of compressor 31, out-of-blast machine 30, the 1st peristome the 19 and the 2nd peristome 20 is all set to off closed state, utilizes wind path shutter 18 that supply wind path 15 is set to off closed state.Further, it is energized to Defrost heater 33.

Then, due to the heating of Defrost heater 33, it is attached to the frost thawing in vaporizer 32 or cooling room 13.Water after frost thawing is wandered to being located in the not shown evaporating dish in Machine Room 49 by being located at the not shown drain pipe of the lower section of cooling room 13.Then, this water evaporates owing to carrying out the heat of compressor 31 grade in above-mentioned evaporating dish.

The heat produced by Defrost heater 33 makes the air in cooling room 13 warm.But, in the electric refrigerator 1 involved by present embodiment, as mentioned above, a part for supply wind path 16 is divided by spacer body 40,1st peristome the 19 and the 2nd peristome 20 is set to off closed state, utilize wind path shutter 18 that supply wind path 15 is set to off closed state, thereby, it is possible to prevent heating installation from flowing out to supply wind path 15,16.Therefore, it is possible to prevent defrosting heating installation from making the inside of supply wind path 15,16 warm.

Time T1 represents the moment that defrosting operation stops.Control whether the device temperature to utilizing the temperature sensor (not shown) being arranged on the pipe arrangement of vaporizer 32 to detect is that predetermined value detects, to judge whether defrosting operation finishes.In addition it is also possible to utilize timer etc., carry out frost in the predetermined time.

As when going frost to finish of vaporizer 32 (time T1), not shown control device stops being energized to Defrost heater 33, and to not carrying out (to time T2) through the scheduled time, next action ground is standby.So, by arranging stand-by time, it is possible to reduce remaining frost and make the air within vaporizer cool down.

Then, at time T2, control device and start compressor 31.Now, pressure fan 30 still stops.Thereby, it is possible to effectively the ambient air being defrosted the vaporizer 32 that heater 33 warms and temperature rises is cooled down and does not make air flow out to the outside (the 1st precooling step) of cooling room 13.

Then, at time T3, control device and the 2nd peristome 20 is set to open mode, by pressure fan 30 putting in blast, thus, spatial portion 14 can be used as circulation air path so that the air circulation of cooling room 13, vaporizer 32 cool down, regulate the temperature (the 2nd precooling step) of the air of spatial portion 14 and cooling room 13.

At this, in above-mentioned 2nd precooling step, the air side thermal conductive surface of vaporizer 32 and the heat exchange of air are the transmission of forced convertion heat.Therefore, it is possible to carry out efficient heat exchange, and can at short notice effectively cooling space portion 14 and cooling room 13 air.

Time T4 represents the finish time of the 2nd precooling step.At this, control whether the device temperature to utilizing the temperature sensor (not shown) being located in cooling room 13 to detect is that predetermined value (target chilling temperature) detects, judge whether above-mentioned air temperature modification finishes, namely judge whether the 2nd precooling step terminates.In addition it is also possible to utilize intervalometer etc. to carry out the 2nd precooling step in the predetermined time.

When the 2nd precooling step terminates (time T4), control device and the 1st peristome 19 is set to open mode, 2nd peristome 20 is set to off closed state, wind path shutter 18 is set to open mode, the air feeding supply wind path 15,16 that said temperature regulates will have been carried out.Then, above-mentioned cooling operations is carried out.

Furthermore, it is possible to the target chilling temperature in the 2nd precooling step is set suitable preferred value according to cooling load.It addition, also be able to suitably change explicitly the opening and closing timing of the 1st peristome the 19, the 2nd peristome 20 and wind path shutter 18 with target chilling temperature.Such as.After carrying out being cooled to the 1st target chilling temperature that design temperature is higher, it also is able to, by the 1st peristome 19 is remained off closed state, the 2nd peristome 20 is set to off closed state, wind path shutter 18 is set to open mode, thus, cooling air is made only to flow to cold room 3 by supply wind path 15.

Further, when temperature reduces further, when being cooled to the 2nd target chilling temperature lower than the 1st target chilling temperature, it is also possible to the 1st peristome 19 is set to open mode, by supplying wind path 16, cold air is supplied to ice-making compartment 4, upper strata refrigerating chamber 5, refrigerating chamber 6.Thereby, it is possible to carry out efficient cooling operations.

Then, with reference to the accompanying drawings the electric refrigerator involved by the 2nd embodiment of the present invention is described in detail.

Fig. 7 indicates that the side sectional view of the structure of cooling room 13 periphery of the electric refrigerator 1 involved by present embodiment.Fig. 8 indicates that the control sequential chart of the summary of the defrosting operation control of electric refrigerator 1.Additionally, to the structural detail playing identical or same effect, effect with the electric refrigerator 1 involved by the 1st embodiment being explained, the label that labelling is identical in Fig. 7 and Fig. 8, the description thereof will be omitted.

As it is shown in fig. 7, the electric refrigerator 1 involved by present embodiment is in the return wind path 29a of refrigerating chamber 6, at the upstream side of the 2nd peristome 20, namely refrigerating chamber 6 side possesses wind path shutter 50.

Wind path shutter 50 involved by present embodiment is same with the above-mentioned wind path shutter 18 being located in supply wind path 15 is so-called motor air door.Additionally, be not limited to this, it is possible to adopt various opening and closing device as wind path shutter 50.

It follows that according to Fig. 8, suitably with reference to Fig. 7, the on-off action of wind path shutter 50 is illustrated.First, in cooling operations (after time T4), wind path shutter 50 is set to open mode by not shown control device.Thus, the air in refrigerating chamber 6 flows through return wind path 29a, returns to cooling room 13.

On the other hand, from defrosting operation, (time T0) plays till the 2nd precooling step terminates (time T4), controls device and wind path shutter 50 is set to off closed state, and blocking returns wind path 29a.Thereby, it is possible to the air in preventing the air in the cooling room 13 utilizing Defrost heater to heat or being adjusted as the temperature that air path is circulated by spatial portion 14 flows into (adverse current) refrigerating chamber 6.As a result of which it is, the temperature of storeroom 4~6 that defrosting operation causes can be suppressed to rise.

Additionally, in the 2nd embodiment described above, the structure of wind path shutter the 18 or the 2nd peristome 20 can also deformation implementation as shown in Figure 5.

Above, the electric refrigerator 1 involved by embodiments of the present invention is illustrated, but, the present invention is not limited to this, without departing from the spirit and scope of the present invention, it is possible to carry out various change.

Claims (7)

1. an electric refrigerator, it is characterised in that possess:
Storeroom;
Supply wind path, it is used for making the above-mentioned storeroom of air flow;
Returning wind path, it is for making the above-mentioned air from above-mentioned storeroom flow through;
Cooling room, it has the peristome and for making what the above-mentioned air from above-mentioned return wind path flowed into return gas peristome of supplying gas for making above-mentioned air flow out to above-mentioned supply wind path;
Vaporizer, it is located at the inside of above-mentioned cooling room, for cooling down from the above-mentioned above-mentioned air returning the inflow of gas peristome;
Pressure fan, it is arranged on above-mentioned supplying gas on peristome;And
Defrosting unit, frost is removed in above-mentioned cooling room by it, it is characterised in that
In this electric refrigerator, have in the outside of above-mentioned cooling room:
Spacer body, it at least divides a part for above-mentioned supply wind path, forms spatial portion, and this spatial portion is connected with above-mentioned cooling room by above-mentioned peristome of supplying gas;
Opening and closing the 1st peristome freely, it is located in the separated region of above-mentioned spatial portion and the above-mentioned supply wind path marked off;And
Opening and closing the 2nd peristome freely, it is located in the separated region of above-mentioned spatial portion and above-mentioned return wind path or above-mentioned cooling room,
Wherein, when being carried out frost by above-mentioned defrosting unit, above-mentioned 1st peristome and above-mentioned 2nd peristome are all set to off closed state;Stop above-mentioned removing frost after, above-mentioned 2nd peristome is set to open mode.
2. electric refrigerator according to claim 1, it is characterised in that
Above-mentioned storeroom is at least divided into cold room and refrigerating chamber, and above-mentioned supply wind path at least has for making the freezing of the above-mentioned refrigerating chamber of above-mentioned air flow supply wind path,
Above-mentioned spacer body is configured to divide above-mentioned freezing supply wind path and above-mentioned spatial portion,
Being closed mode by making above-mentioned 1st peristome, making above-mentioned 2nd peristome is open mode, and above-mentioned spatial portion becomes for flowing into the air path of above-mentioned cooling room from the above-mentioned air of the peristome outflow of supplying gas of above-mentioned cooling room from the above-mentioned gas peristome that returns.
3. electric refrigerator according to claim 2, it is characterised in that
Above-mentioned supply wind path has the cold preservation supply wind path making the above-mentioned cold room of above-mentioned air flow,
Above-mentioned cold preservation supply wind path is connected with above-mentioned spatial portion, is provided with wind path shutter in above-mentioned cold preservation supply wind path.
4. the method for work of an electric refrigerator, it is characterised in that
This electric refrigerator possesses:
Storeroom;
Supply wind path, it is used for making the above-mentioned storeroom of air flow;
Returning wind path, it is for making the above-mentioned air from above-mentioned storeroom flow through;
Cooling room, it has the peristome and for making what the above-mentioned air from above-mentioned return wind path flowed into return gas peristome of supplying gas for making above-mentioned air flow out to above-mentioned supply wind path;
Vaporizer, it is located at the inside of above-mentioned cooling room, for cooling down from the above-mentioned above-mentioned air returning the inflow of gas peristome;
Pressure fan, it is arranged on above-mentioned supplying gas on peristome;And
Defrosting unit, frost is removed in above-mentioned cooling room by it,
In this electric refrigerator, have in the outside of above-mentioned cooling room:
Spacer body, it at least divides a part for above-mentioned supply wind path, forms spatial portion, and this spatial portion is connected with above-mentioned cooling room by above-mentioned peristome of supplying gas;
Opening and closing the 1st peristome freely, it is located in the separated region of above-mentioned spatial portion and the above-mentioned supply wind path marked off;And
Opening and closing the 2nd peristome freely, it is located in the separated region of above-mentioned spatial portion and above-mentioned return wind path or above-mentioned cooling room,
Wherein, when being carried out frost by above-mentioned defrosting unit, above-mentioned 1st peristome and above-mentioned 2nd peristome are all set to off closed state;Stop above-mentioned removing frost after, above-mentioned 2nd peristome is set to open mode, above-mentioned spatial portion is used as the air path making above-mentioned air circulate to above-mentioned cooling room, undertaken cooling down and being blown by above-mentioned pressure fan by above-mentioned vaporizer, thus adjusting the temperature of the above-mentioned air of above-mentioned spatial portion and above-mentioned cooling room.
5. the method for work of electric refrigerator according to claim 4, it is characterised in that
After the temperature of the above-mentioned air to above-mentioned spatial portion and above-mentioned cooling end has carried out adjusting, above-mentioned 1st peristome is set to open mode, above-mentioned 2nd peristome is set to off closed state, by above-mentioned supply wind path, the air having carried out said temperature adjustment is supplied to above-mentioned storeroom.
6. the method for work of electric refrigerator according to claim 4, it is characterised in that
In above-mentioned electric refrigerator, above-mentioned storeroom is at least divided into cold room and refrigerating chamber, and above-mentioned supply wind path at least has: freezing supply wind path, it is used for making the above-mentioned refrigerating chamber of above-mentioned air flow, and is separated by above-mentioned spacer body and above-mentioned spatial portion;And cold preservation supply wind path, it is used for making the above-mentioned cold room of above-mentioned air flow, is connected with above-mentioned spatial portion, is provided with wind path shutter in its wind path,
Wherein, when being carried out frost by above-mentioned defrosting unit, above-mentioned 1st peristome and above-mentioned 2nd peristome are all set to off closed state;Stop above-mentioned removing frost after, above-mentioned 2nd peristome being set to open mode, utilizing above-mentioned wind path shutter that above-mentioned cold preservation supply wind path is set to off closed state, thus adjusting the temperature of the above-mentioned air of above-mentioned spatial portion and above-mentioned cooling room.
7. the method for work of electric refrigerator according to claim 6, it is characterised in that
After having carried out the temperature of above-mentioned spatial portion and the above-mentioned air of above-mentioned cooling room adjusting, above-mentioned 1st peristome is set to open mode, above-mentioned 2nd peristome is set to off closed state, utilize above-mentioned wind path shutter that above-mentioned cold preservation supply wind path is set to open mode, supply wind path or above-mentioned cold preservation supply wind path by above-mentioned freezing and the air having carried out said temperature adjustment is respectively supplied to above-mentioned refrigerating chamber or above-mentioned cold room.
CN201380011040.XA 2012-03-26 2013-03-26 Electric refrigerator and method of work thereof CN104160225B (en)

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WO2013143449A1 (en) 2013-10-03
EP2833089A1 (en) 2015-02-04
EP2833089B1 (en) 2018-07-25
US20150033773A1 (en) 2015-02-05
JP2013200074A (en) 2013-10-03
JP5847626B2 (en) 2016-01-27
EP2833089A4 (en) 2015-11-18

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