CN206546057U - Refrigerator - Google Patents
Refrigerator Download PDFInfo
- Publication number
- CN206546057U CN206546057U CN201590000591.0U CN201590000591U CN206546057U CN 206546057 U CN206546057 U CN 206546057U CN 201590000591 U CN201590000591 U CN 201590000591U CN 206546057 U CN206546057 U CN 206546057U
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- Prior art keywords
- insulation part
- capillary
- suction line
- refrigerator
- interior case
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- 238000009413 insulation Methods 0.000 claims abstract description 100
- 229920002635 polyurethane Polymers 0.000 claims description 9
- 239000004814 polyurethane Substances 0.000 claims description 9
- 238000005187 foaming Methods 0.000 claims description 4
- 239000003507 refrigerant Substances 0.000 description 24
- 230000005494 condensation Effects 0.000 description 12
- 238000009833 condensation Methods 0.000 description 12
- 230000001629 suppression Effects 0.000 description 10
- 235000013311 vegetables Nutrition 0.000 description 6
- 210000005239 tubule Anatomy 0.000 description 3
- 238000011144 upstream manufacturing Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000002390 adhesive tape Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D19/00—Arrangement or mounting of refrigeration units with respect to devices or objects to be refrigerated, e.g. infrared detectors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D23/00—General constructional features
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D23/00—General constructional features
- F25D23/06—Walls
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Refrigerator Housings (AREA)
Abstract
The utility model is related to a kind of refrigerator.Insulation is set to the rear side positioned at cooler, and including：Foamed heat insulation part, its preceding surface and the back side of interior case are opposite disposed；And vacuum insulation part, its preceding surface and foamed heat insulation part are opposite disposed, and the preceding opposing surface of the back side and outer container is set, capillary and suction line are set to the state passed through from the foamed heat insulation part in insulation, and capillary, suction line, foamed heat insulation part and vacuum insulation part are configured to：When the distance between the side of close interior case in capillary and suction line and the back side of interior case is set into d1, the thickness of vacuum insulation part is set to d2, the thermal conductivity of foamed heat insulation part is set to λ a, the thermal conductivity of vacuum insulation part is set to λ b and represents ratio c1 by c1=(d1/ λ a)/(d2/ λ b) this mathematical expression, ratio c1 value is more than 0.025 and less than 0.05.
Description
Technical field
The utility model is related to a kind of refrigerator, and the suction of body of thermal insulating box is more particularly to flowed and be attached to for refrigerant
The structure of pipe etc..
Background technology
Refrigerator for example possesses：Body of thermal insulating box, it includes interior case and outer container；And refrigerating circulatory device.Here, kind of refrigeration cycle
Device for example including：Compressor, it is compressed to refrigerant；Radiator (condenser), it makes refrigerant radiate；Negative booster
Structure, it is depressurized to refrigerant；And evaporator, it evaporates refrigerant.In addition, for radiator for example using with exhausted
The radiating tube that the mode gone in ring in hot tank body is configured, for the mechanism of decompressor for example using capillary.In addition, evaporator is to refrigerator
The cooler that interior storeroom is cooled down.
But, the refrigerant suction side of compressor and the downstream of cooler are connected.However, due to the configuration bit of compressor
Put and separated with the allocation position of cooler, therefore connected both using suction line.
Suction line and capillary are for example configured at the rear side of the body of thermal insulating box of refrigerator (for example, referring to patent document 1).
The suction line and capillary of patent document 1 are formed between interior case and outer container, and are configured at the space filled with polyurethane.
Patent document 1：Japanese Unexamined Patent Publication 2005-90853 publications
The refrigerant flowed in cooler captures heat from supply to the air of cooler.Thus, the system flowed in cooler
Cryogen evaporates and supply to the air of cooler is cooled down.Therefore, in the case where storage compartment temperature is lower than suction line temperature,
Suction line is more configured at the vicinity of interior case, then in the easier intrusion storeroom of the heat of suction line.
When capillary can also occur same.That is, in the case where storage compartment temperature is lower than capillary temperature, hair
Tubule is more configured at the vicinity of interior case, then in the easier intrusion storeroom of the heat of capillary.
In addition, the temperature of outer container of the temperature of the refrigerant flowed in suction line generally than being contacted with extraneous air is low.Cause
This, suction line is more configured at the vicinity of outer container, and the low-temperature receiver heat of suction line is more easily transferred to outer container.If in addition, the temperature of outer container
Reduce and reach below dew-point temperature, then can produce condensation.
Utility model content
The utility model completes for problem as solving the above, its object is to provide a kind of refrigerator, should
Refrigerator can take into account the hot suppression invaded into storeroom to suction line and capillary and the suppression of the condensation to outer container
System.
Refrigerator involved by the utility model possesses：Body of thermal insulating box, it include interior case, be configured at interior case outside it is outer
Case and the insulation between interior case and outer container；And refrigerating circulatory device, it passes through according to compressor, condenser, hair
These parts are connected and constituted by the order of tubule, cooler and suction line, and insulation is set to positioned at the back side of cooler
Side, and including：Foamed heat insulation part, its preceding surface and the back side of interior case are opposite disposed；And vacuum insulation part, its preceding surface with
Foamed heat insulation part is opposite disposed, and the preceding opposing surface of the back side and outer container is set, and capillary and suction line are set to from thermal insulation
The state that foamed heat insulation part in part passes through, capillary, suction line, foamed heat insulation part and vacuum insulation part are configured to：To
The distance between one side of the close interior case in capillary and suction line and back side of interior case are set to d1, by vacuum insulation part
Thickness is set to d2, the thermal conductivity of foamed heat insulation part is set to λ a, the thermal conductivity of vacuum insulation part is set to λ b and by c1=
(d1/ λ a)/(d2/ λ b) this mathematical expression and when representing ratio c1, ratio c1 value is more than 0.025 and less than 0.05.
Preferably, it is described apart from d1 be more than 3.75mm and less than 10.0mm, the thickness d 2 for more than 15mm 20mm with
Under.
Preferably, compared with the capillary, the suction line is configured at the outer container side.
Preferably, the interior case includes the allocation position for being arranged at the capillary and to prominent convex in the outer container side
Portion, the suction line and the capillary are fixed on the convex portion.
Preferably, the fixation for the allocation position being made up of foaming body and positioned at the capillary is provided with the interior case
Part, the suction line and the capillary are fixed on the fixed component.
Preferably, the foamed heat insulation part is made up of polyurethane.
It is more than 0.025 and less than 0.05 that refrigerator involved by the utility model, which is configured to above-mentioned ratio c1, therefore, it is possible to
Take into account the suppression of the hot intrusion into storeroom to suction line and capillary and the suppression of the condensation to outer container.
Brief description of the drawings
Fig. 1 is the front view of the refrigerator involved by embodiment of the present utility model.
Fig. 2 is the sectional view of the refrigerator shown in Fig. 1.
Fig. 3 is the summary description figure of the refrigerating circulatory device that refrigerator possesses etc..
Fig. 4 is the explanation figure of the refrigerator involved by embodiment of the present utility model from rear side.
Fig. 5 be section view observe refrigerator involved by embodiment of the present utility model outer container and interior case and suction line and
The explanation figure of capillary.
Fig. 6 is the relation and ratio c1 and the outer container back side for representing ratio c1 with the hot intrusion volume of the storeroom to refrigerator
The curve map of the relation of temperature.
Fig. 7 is for the heat on the inside of refrigerator and the hot explanation figure exchanged on the outside of refrigerator.
Fig. 8 is the explanation figure of the variation 1 of the refrigerator involved by embodiment of the present utility model.
Fig. 9 is the explanation figure of the variation 2 of the refrigerator involved by embodiment of the present utility model.
Figure 10 is the explanation figure of the configuration of the suction line of existing refrigerator etc..
Embodiment
Embodiment
Fig. 1 is the front view of the refrigerator 100 involved by present embodiment.Fig. 2 is the sectional view of the refrigerator 100 shown in Fig. 1,
Fig. 3 is the refrigerating circulatory device 100B that refrigerator 100 possesses etc. summary description figure.1~Fig. 3 of reference picture is whole to refrigerator 100
Body structure is illustrated.In addition, in the following description, right side and left side are that the front-surface side direction from refrigerator 100 is inboard
Direction is used as the right side and left side during front.That is, right side corresponds to the right side of Fig. 1 paper, and left side corresponds to Fig. 1 paper
Left side.
[structure of refrigerator 100]
Refrigerator 100 is formed with 3 storerooms 10 in body of thermal insulating box 100A.Storeroom 10 is from upper strata including refrigerating chamber
1A, refrigerating chamber 1B and vegetable compartment 1C.On refrigerating chamber 1A right side and left side, opening and closing is provided with opposite opened door 1AA freely.
Refrigerating chamber 1B, front and rear opening and closing is provided with drawer type door 1BB freely.Vegetable compartment 1C is provided with drawer type door 1CC.
Refrigerating chamber 1A is the storeroom for maintaining to cause the temperature of the uncongealable degree of stored substance.Refrigerating chamber 1B is set to cold
Freeze the storeroom of temperature band.Vegetable compartment 1C is storeroom mainly for the purpose of the storage of vegetables.In addition, in present embodiment
In, the example for being configured with refrigerating chamber 1A, refrigerating chamber 1B and vegetable compartment 1C in order from upper strata is shown, but be not limited to
This.
Body of thermal insulating box 100A includes：Interior case 1, it marks off storeroom 10 by partition wall；And outer container 2, it is configured
There is opening in the outside of interior case 1, and on preceding surface.Insulation 3 is configured between interior case 1 and outer container 2.In addition, insulated cabinet
The insulation 3 positioned at rear side in body 100A includes foamed heat insulation part 3a and vacuum insulation part 3b.Foamed heat insulation part 3a
If being made up of polyurethane.In the present embodiment, foamed heat insulation part 3a is illustrated for the situation of polyurethane.Vacuum is exhausted
Warmware 3b is constituted such as the enclosure that can be housed by fiber and to fiber.
Refrigerator 100 possesses refrigerating circulatory device 100B.Refrigerating circulatory device 100B includes：Compressor 5, it enters to refrigerant
Row compression；Condenser pipe 14, it makes refrigerant radiate；As the capillary 7 of the mechanism of decompressor, it is depressurized to refrigerant；And
The cooler 4 of function as evaporator, it evaporates refrigerant.Condenser pipe 14 with body of thermal insulating box 100A go in ring
Mode is configured.Thus avoid body of thermal insulating box 100A from condensing etc..
Compressor 5 has the function of being compressed and discharge it to refrigerant.Compressor 5 is placed in body of thermal insulating box 100A
Bottom.The refrigerant discharge side of compressor 5 is connected with condenser pipe 14, and refrigerant suction side is connected with suction line 6.
Condenser pipe 14 has the function of causing refrigerant condensation liquefaction.One end of condenser pipe 14 and the refrigerant of compressor 5
Discharge side is connected, and the other end is connected with capillary 7.As shown in figure 3, condenser pipe 14 is arranged at body of thermal insulating box in the way of going in ring
In 100A.
Capillary 7 has the function of being depressurized to refrigerant.One end of capillary 7 is connected with condenser pipe 14, the other end
It is connected with cooler 4.
Cooler 4 has the function of evaporating refrigerant.In addition, in cooler 4, can be when refrigerant evaporates from sky
Gas captures heat and causes air cooling.One end of cooler 4 is connected with capillary 7, and the other end is connected with suction line 6.In cooling
Device 4 is attached to the pressure fan 20 for supplying air to cooler 4.The pressure fan 20 is configured at inboard of storeroom 10 etc..Pass through
Pressure fan 20 operates and supplies air to cooler 4.In addition, supply to the air of cooler 4 is cooled, device 4 is cooled down, and to each
Storeroom 10 is supplied.
In addition, capillary 7 and suction line 6 are configured at body of thermal insulating box 100A rear side.
[detailed construction of the grade of suction line 6]
Fig. 4 is the explanation figure of the refrigerator 100 involved by present embodiment from rear side.Fig. 5 is that section view observes this reality
Apply the outer container 2 and the explanation figure of interior case 1 and suction line 6 and capillary 7 of the refrigerator 100 involved by mode.Reference picture 4 and Fig. 5 pairs
The structure of the grade of suction line 6 of refrigerator 100 is illustrated.
For suction line 6, it is connected, corresponds to cooler 4 corresponding to one end of refrigerant flow direction upstream side
The other end in refrigerant flow direction downstream is connected with the suction side of compressor 5.Suction line 6 is configured at body of thermal insulating box 100A's
Rear side.In addition, suction line 6 is configured at the space formed between the interior case 1 and outer container 2 that constitute body of thermal insulating box 100A.At this
Space is filled with foamed heat insulation part 3a and is configured with vacuum insulation part 3b.
One end of suction line 6 is connected with the top of cooler 4.Suction line 6 is with the rear side of interior case 1 and in cooler 4
The state gone in ring sinuously of rear side and be arranged at body of thermal insulating box 100A.That is, one end of suction line 6 is with being located at than compressor 5
The cooler 4 of upper position is connected, therefore, the position of the other end of the position than suction line 6 of one end of the suction line 6
It is high.Moreover, suction line 6 is wriggled, while going in ring ground in the way of extending to downside by one side from the one end in the rear side of cooler 4
It is connected with compressor 5.
For capillary 7, it is connected, corresponds to condenser pipe 14 corresponding to one end of refrigerant flow direction upstream side
The other end in refrigerant flow direction downstream is connected with the upstream side of cooler 4.Capillary 7 is configured in the same manner as suction line 6
In body of thermal insulating box 100A rear side.That is, capillary 7 is cooperatively set with suction line 6.Therefore, in capillary 7 is also configured at
The space that is formed between case 1 and outer container 2 and it is configured at the space configured for foamed heat insulation part 3a and vacuum insulation part 3b.
Compared with suction line 6, capillary 7 is configured at the position of more inner case 1.In addition, compared with capillary 7, suction line 6 is configured at
The more outward position of case 2.
Foamed heat insulation part 3a is the insulation being made up of polyurethane.For example, being configured with vacuum between interior case 1 and outer container 2
After insulation 3b, filling-foam insulation 3a.Foamed heat insulation part 3a is set to：Preceding surface contacted with interior case 1 and the back side with it is true
Empty insulation 3b preceding surface contact.That is, the part of the rear side positioned at body of thermal insulating box 100A in foamed heat insulation part 3a with it is true
Empty insulation 3b is set jointly.In addition, foamed heat insulation part 3a is also filled up in body of thermal insulating box 100A two sides etc..Suction line 6 with
And capillary 7 is configured to pass through from foamed heat insulation part 3a.That is, suction line 6 and capillary 7 are passing through from foamed heat insulation part 3a
Body of thermal insulating box 100A rear side is arranged under state.
Vacuum insulation part 3b is to be arranged on body of thermal insulating box 100A in the way of than foamed heat insulation part 3a positions in the outer part
It is interior.Suction line 6 and capillary 7 do not pass through from vacuum insulation part 3b.Vacuum insulation part 3b is set to：Preceding surface and foamed heat insulation
Part 3a preceding surface is contacted and the back side is contacted with outer container 2.
As shown in figure 5, by between the side of close interior case 1 in capillary 7 and suction line 6 and the back side of interior case 1 away from
From being set to d1.Here, in the present embodiment, capillary 7 is close to interior case 1.Therefore, be apart from d1 capillary 7 front end with it is interior
The distance between back side of case 1.
In addition, vacuum insulation part 3b thickness is set into d2.
In addition, by between the side of close interior case 1 in capillary 7 and suction line 6 and vacuum insulation part 3b preceding surface
Distance be set to d3.Here, in the present embodiment, capillary 7 is close to interior case 1.Therefore, it is the front end of capillary 7 apart from d3
The distance between with vacuum insulation part 3b.
In addition, the body of thermal insulating box 100A of refrigerator 100 back side wall thickness can be represented by d1+d2+d3.That is, back face wall
Thickness corresponds to the distance between the back side of interior case 1 and the preceding surface of outer container 2, can be represented by d1+d2+d3.
[suppression to the heat intrusion to storeroom 10]
Fig. 6 is to represent ratio c1 and the relation from the storeroom 10 to refrigerator 100 and ratio c1 and outer container of the hot intrusion volume of
The curve map of the relation of back temperature.Fig. 7 is the heat on the inside of refrigerator and the hot explanation figure exchanged on the outside of refrigerator.Reference picture 6
And suppression of the Fig. 7 to the heat intrusion to storeroom 10 is illustrated.
The temperature of suction line 6 the side of cooler 4 entrance be -35 DEG C~-20 DEG C or so, temperature towards outlet almost with
Linear mode rises, and reaches 25 DEG C~30 DEG C or so in the exit of the side of compressor 5.On the other hand, the temperature of cooler
About -35 DEG C~-20 DEG C of degree, 65 DEG C or so are up to the temperature difference of suction line 6.Therefore, in body of thermal insulating box 100A
The part and the temperature difference of suction line 6 for being configured with cooler 4 are also possible to produce the temperature difference being equal with it.
Suction line 6 and capillary 7 are configured in body of thermal insulating box 100A foamed heat insulation part 3a.Here, in existing refrigerator
In, interior case 1 and the distance between suction line 6 and capillary 7 d1 are set to smaller (reference picture 10).In addition, existing
In refrigerator, also suction line 6 is pasted using adhesive tape sometimes and is fixed on interior case 1.Therefore, the grade of suction line 6 heat especially towards with
The influence for being equipped with the phenomenon (backheat) of the transmission of storeroom 10 of cooler 4 is larger.
It is used as the heat intrusion at the back side of from the body of thermal insulating box 100A to refrigerator 100, alternatively it is conceivable to be broadly divided into from outside empty
The hot intrusion volume Qout of the gas and hot intrusion volume Qsuc from suction line 6.Moreover, hot intrusion volume Qout and hot intrusion volume
Qsuc aggregate value Qtotal turns into the hot intrusion volume at the back side of the body of thermal insulating box 100A from refrigerator 100.
In the present embodiment, by the vacuum insulation part 3b's of the rear side setting in the body of thermal insulating box 100A of refrigerator 100
Thickness d 2 is fixed as 15mm~20mm etc value and is set to relatively thin.Instead, suction line 6 and the phase of capillary 7 are made
Moved for interior case 1 towards rear side, by the distance between suction line 6 and capillary 7 and interior case 1 d1 ensure 3.75mm with
Go up and be set to less than 10.0mm etc value larger.
So, even if vacuum insulation part 3b thickness d 2 is thinned and causes the hot intrusion volume Qout from extraneous air to increase
Plus, by suitably ensuring, apart from d1, can also reduce the aggregate value Qtotal of overall hot intrusion volume.That is, even if from outer
The hot intrusion volume Qout increases of portion's air, the backheat decrement from suction line 6 and capillary 7 is also above hot intrusion volume Qout
Incrementss.
Here, the adiabatic thermal resistance value of pipe arrangement can be expressed as d1/ λ a.Here, the adiabatic pipe arrangement of pipe arrangement refers to as pipe arrangement
Capillary 7 and the suction line 6 as pipe arrangement.
In addition, vacuum insulation part 3b thermal resistance value can be expressed as d2/ λ b.
Moreover, the ratio c1 of the adiabatic thermal resistance value of the pipe arrangement and vacuum insulation part 3b thermal resistance value is defined by following formula.
[mathematical expression 1]
Wherein, λ a represent foamed heat insulation part 3a thermal conductivity [W/mK], and λ b represent vacuum insulation part 3b thermal conductivity [W/
mK]。
The aggregate value Qtotal (=Qsuc+Qout) of the hot intrusion volume at ratio c1 and back side relation is shown in Fig. 6.Separately
Outside, in figure 6, for back side wall thickness (=d1+d2+d3) with 30mm, 40mm, 50mm each value constant situation, respectively
The aggregate value Qtotal of hot intrusion volume is shown.
In addition, in figure 6, changing ratio c1 based on following condition.
(condition 1) is set to ratio c1=0 in d1=0mm.
(condition 2) makes d2 reduce and the corresponding amount of d1 increases.
D3 is set to 10mm steady state value by (condition 3).
It can be seen from Fig. 6, the aggregate value Qtotal of hot intrusion volume is changed into being convex to the line of lower section, there is the total of hot intrusion volume
The scope for the ratio c1 that value Qtotal value diminishes.
Because, it is correspondingly, smaller so as to from suction line 6 apart from d1 in the case of ratio c1 is less
Hot intrusion volume Qsuc becomes big.Therefore, ratio c1 is less than in the case of 0.025, the aggregate value Qtotal of hot intrusion volume becomes
Greatly.
On the other hand, in the case where ratio c1 is larger, correspondingly, become big so as to from suction line 6 apart from d1
Hot intrusion volume Qsuc is reduced, but vacuum insulation part thickness d 2 diminishes.Therefore, in the case of ratio c1 increases and more than 0.05,
Hot intrusion volume Qout increases from extraneous air, so that the aggregate value Qtotal increases of hot intrusion volume.
It can be seen from Fig. 6, particularly in the case where ratio c1 is less than 0.025, hot intrusion volume is sharply increased, therefore, is led to
Crossing makes ratio c1 reach more than 0.025, can suppress the aggregate value Qtotal of hot intrusion volume.If in addition, ratio c1 value increase
Then the aggregate value Qtotal of hot intrusion volume is slowly increased, but by the way that ratio c1 is set into less than 0.085, can suppress Qtotal.
Ratio c1 value can then make the aggregate value Qtotal value of hot intrusion volume relative to heat if less than more than 0.025 0.085
The aggregate value Qtotal of intrusion volume minimum value is in less than 110%.Therefore, ratio c1 value is less than more than 0.025 0.085
Scope can effectively suppress hot intrusion.
[suppression to the condensation of outer container 2]
The situation for suppressing the condensation of the outer container 2 of refrigerator 100 is illustrated with reference to above-mentioned Fig. 6.At the back side of refrigerator 100 not
In the refrigerator 100 for possessing condenser pipe 14, the back side of refrigerator 100 is cooled down from suction line 6, therefore, if the back side of outer container 2
Temperature is reduced and reached below dew-point temperature, then produces condensation.The temperature To at the back side of outer container 2 is illustrated based on Fig. 7.Can
With the temperature To at the back side for considering to represent outer container 2 by following formula.
[mathematical expression 2]
Tair is the air themperature outside refrigerator 100, and Tsuc is the temperature on the surface of suction line 6.
Here, RVIP represents vacuum insulation part 3b and outer container 2 thermal resistance value, Rair represent air outside refrigerator 100 with it is outer
The thermal resistance value of case 2, if being considered with per unit area, is expressed by following formula.
[mathematical expression 3]
Here, α air are the air outside refrigerator 100 and the heet transfer rate at the outer container back side.If being considered according to above formula, in vacation
In the case of certain operating condition for having determined certain external air temperature condition and refrigerator 100, the Air Temperature outside refrigerator 100 is determined
Spend Tair, the value of thermal resistance value Rair, Tsuc, therefore, in order to suppress condensation, for refrigerator back side adiabatic wall construction, it is necessary to make
Vacuum insulation part 3b reaches more than steady state value.
Next, considering the temperature To and ratio c1 on outer container surface relation.Show that extraneous air is by chain-dotted line in Fig. 6
30 DEG C, the surface temperature of suction line 6 be -35 DEG C in the case of the refrigerator back side temperature.In addition, shown by dashed lines outer in Fig. 6
Portion's air is 30 DEG C, relative humidity is dew-point temperature under conditions of 90%.
If the value that is, vacuum insulation part 3b thermal resistance value (=d2/ λ b) reduction, i.e. ratio c1 value of ratio c1 denominator
The temperature reduction of increase, the then back side of refrigerator 100.
As shown in Figure 6, it is known that if ratio c1 value is set to less than 0.05, the back side (back side of outer container 2) of refrigerator 100
Temperature become higher than the dew point, so as to the condensation at the back side for suppressing refrigerator 100.
In addition, based on the suppression to the heat intrusion to storeroom 10, ratio c1 is set to more than 0.025, also, such as this
In it is illustrated as, ratio c1 is set to less than 0.05 based on condensation.
As above, ratio c1 be more than 0.025 and less than 0.05 in the range of, the back side from refrigerator 100 can be suppressed
Hot intrusion volume aggregate value Qtotal.Further, since ratio c1 value is set to less than 0.05, therefore, it is possible to suppress refrigerator
The temperature reduction at 100 back side, so as to suppress condensation.
In addition, in the present embodiment, it is permanent to the body of thermal insulating box 100A of refrigerator 100 back side wall thickness (=d1+d2+d3)
The relation of optimal d1 and d2 in the case of fixed are calculated, and are applied to refrigerator 100.Therefore, in present embodiment
In involved refrigerator 100, can either avoid storeroom 10 internal volume reduce and body of thermal insulating box 100A shared by setting face
Long-pending increase, can suppress hot intrusion again.
For example, when carry out tentative calculation when, in the case of λ a/ λ b=10, vacuum insulation part thickness d 2=15~20mm, than
Rate c1 be more than 0.025 and less than 0.05 in the range of, d1 is more than 3.75mm and less than 10mm.In the present embodiment, by
The thermal resistance value for also contemplating thermal conductivity λ is carried out contrast ratio c1 and is defined.Even in foamed heat insulation part 3a and vacuum insulation part 3b
Thermal conductivity λ change in the case of, with make ratio c1 be in above range by way of configure suction line 6, can also suppress
To the heat intrusion of storeroom 10.
[effect of present embodiment]
Refrigerator 100 involved by present embodiment possesses：Body of thermal insulating box 100A, it includes interior case 1, is configured at interior case 1
The outer container 2 in outside and the insulation 3 between interior case 1 and outer container 2；And refrigerating circulatory device 100B, it is according to compression
Machine 5, as the order of the condenser pipe 14 of condenser, capillary 7, the cooler 4 as evaporator and suction line 6 by these portions
Part is connected and constituted, and insulation 3 is set to be located at least in the rear side of cooler 4, and including：Foamed heat insulation part 3a, before it
Surface and the back side of interior case 1 are opposite disposed；And vacuum insulation part 3b, its preceding surface and foamed heat insulation part 3a are opposite disposed, and
And the back side and the preceding opposing surface of outer container 2 are set, capillary 7 and suction line 6 are set to from the foamed heat insulation part in insulation 3
The state that 3a passes through, capillary 7, suction line 6, foamed heat insulation part 3a and vacuum insulation part 3b are configured to：By capillary 7 with
And the distance between the back side of a side of the close interior case 1 in suction line 6 and interior case 1 is set to d1, the thickness by vacuum insulation part 3b
When degree is set to d2, foamed heat insulation part 3a thermal conductivity is set to λ a, vacuum insulation part 3b thermal conductivity is set into λ b, ratio c1's
It is worth for more than 0.025 and less than 0.05.
So, the refrigerator 100 involved by present embodiment is configured to meet ratio c1 in the above described manner, therefore, it is possible to simultaneous
Turn round and look at the suppression of the hot intrusion into storeroom to suction line 6 and capillary 7 and the suppression of the condensation to outer container 2.
Refrigerator 100 involved by present embodiment can suppress heat and be invaded into storeroom 10, therefore, it is possible to efficiently right
Air in storeroom 10 is cooled down.Thereby, it is possible to suppress the consumption electric power of refrigerator 100.
In the refrigerator 100 involved by present embodiment, as shown in fig. 5 or the like, to the section of suction line 6 and capillary 7
The mode for being shaped as circle is illustrated, but is not limited to this.Even for example, quadrangle etc., is also resulted in and this
The same effect of refrigerator 100 involved by embodiment.
[variation 1]
Fig. 8 is the explanation figure of the variation 1 of the refrigerator 100 involved by present embodiment.
In the refrigerator 100 involved by present embodiment, although suction line 6 and capillary 7 are configured at into foamed heat insulation
Part 3a, but the fixed component to supporting suction line 6 and capillary 7 is not illustrated.In variation 1, to by fixed part
The mode that part is arranged at refrigerator 100 is illustrated.
In variation 1, by the part configuration of suction line 6 and capillary 7, it is fixed on the convex portion 50 of interior case 1.
That is, convex portion 50 is formed in a part for interior case 1.Therefore, beyond the forming position of convex portion 50, it is ensured that suction line 6 and hair
The distance between tubule 7 and interior case 1 d1.Thus, the supporting to suction line 6 and capillary 7 can either be realized, is able to ensure that again
The distance between suction line 6 and capillary 7 and interior case 1 d1, so as to suppress the heat intrusion to storeroom 10.
In addition, in variation 1, the convex portion 50 that suction line 6 etc. is fixed is formed with interior case 1, and without using
Miscellaneous part as the fixed support of the resinous grade of suction line 6, correspondingly, can suppress the system of refrigerator 100
Cause this.
The interior case 1 of refrigerator 100 involved by present embodiment includes being arranged at the allocation position of capillary 7 and to outer container 2
The convex portion 50 that side is protruded, capillary 7 and suction line 6 are fixed on convex portion 50.Thus, can either be more reliably solid by suction line 6
Due to body of thermal insulating box 100A, manufacturing cost can be suppressed again.
[variation 2]
Fig. 9 is the explanation figure of the variation 2 of the refrigerator 100 involved by present embodiment.
In variation 1, convex portion 50 is formed with interior case 1, but it is also possible to be arranged at the fixture 51 as fixed component
On interior case 1.That is, a part for suction line 6 and capillary 7 is configured on fixture 51, and is fixed in fixture 51.That is,
In the part configuration fixture 51 of interior case 1.Therefore, beyond the allocation position of fixture 51, it is ensured that suction line 6 and capillary
The distance between 7 and interior case 1 d1.So, in variation 2, the supporting to suction line 6 and capillary 7 can either be realized, again
The distance between suction line 6 and capillary 7 and interior case 1 d1 is able to ensure that, so as to suppress the heat intrusion to storeroom 10.
In addition, as fixture 51, such as the foaming body that is constituted by the excellent resin of thermal insulation can be used.With using tree
The situation of the support of fat is compared, and can suppress the heat bridge (heat bridge) based on resin, therefore, it is possible to suppress to storeroom
10 hot intrusion volume.
For the refrigerator 100 involved by present embodiment, it is provided with and is made up of foaming body and positioned at capillary in interior case 1
The fixed component 51 of the allocation position of pipe 7, capillary 7 is fixed on fixed component 51.Thus, can either be more reliable by suction line 6
Ground is fixed on body of thermal insulating box 100A, can suppress the heat intrusion to storeroom 10 again.
The explanation of reference
1... interior case；1A... refrigerating chambers；1AA... opposite openeds door；1B... refrigerating chambers；1BB... drawer type doors；1C...
Vegetable compartment；1CC... drawer type doors；2... outer container；3... insulation；3a... foamed heat insulation parts；3b... vacuum insulation parts；
4... cooler；5... compressor；6... suction line；7... capillary；10... storeroom；14... condenser pipe；20... blow
Machine；50... convex portion；51... fixture (fixed component)；100... refrigerator；100A... body of thermal insulating box；100B... kind of refrigeration cycle is filled
Put.
Claims (9)
1. a kind of refrigerator, it possesses：
Body of thermal insulating box, it include interior case, be configured at the interior case outside outer container and positioned at the interior case and the outer container
Between insulation；And
Refrigerating circulatory device, its by the order according to compressor, condenser, capillary, cooler and suction line by these
Part is connected and constituted,
The refrigerator is characterised by,
The insulation is set to the rear side positioned at the cooler, and including：
Foamed heat insulation part, its preceding surface and the back side of the interior case are opposite disposed；And
Vacuum insulation part, its preceding surface and the foamed heat insulation part are opposite disposed, and the back side and the preceding opposing surface of the outer container
Set,
The capillary and the suction line are set to the state passed through from the foamed heat insulation part in the insulation,
The capillary, the suction line, the foamed heat insulation part and the vacuum insulation part are configured to：By the capillary
The distance between back side of a side and the interior case of pipe and the close interior case in the suction line is set to d1, by described in
The thickness of vacuum insulation part is set to d2, the thermal conductivity of the foamed heat insulation part is set to λ a, the heat conduction by the vacuum insulation part
When rate is set to λ b and represents ratio c1 by c1=(d1/ λ a)/(d2/ λ b) this mathematical expression, the value of the ratio c1 is
More than 0.025 and less than 0.05.
2. refrigerator according to claim 1, it is characterised in that
Described is more than 3.75mm and less than 10.0mm apart from d1,
The thickness d 2 is more than 15mm below 20mm.
3. refrigerator according to claim 1 or 2, it is characterised in that
Compared with the capillary, the suction line is configured at the outer container side.
4. refrigerator according to claim 3, it is characterised in that
The interior case includes being arranged at the allocation position of the capillary and the convex portion prominent to the outer container side,
The suction line and the capillary are fixed on the convex portion.
5. refrigerator according to claim 3, it is characterised in that
The interior case is provided with the fixed component for the allocation position being made up of foaming body and positioned at the capillary,
The suction line and the capillary are fixed on the fixed component.
6. refrigerator according to claim 1 or 2, it is characterised in that
The foamed heat insulation part is made up of polyurethane.
7. refrigerator according to claim 3, it is characterised in that
The foamed heat insulation part is made up of polyurethane.
8. refrigerator according to claim 4, it is characterised in that
The foamed heat insulation part is made up of polyurethane.
9. refrigerator according to claim 5, it is characterised in that
The foamed heat insulation part is made up of polyurethane.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2015/072255 WO2017022102A1 (en) | 2015-08-05 | 2015-08-05 | Refrigerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206546057U true CN206546057U (en) | 2017-10-10 |
Family
ID=57942679
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201590000591.0U Active CN206546057U (en) | 2015-08-05 | 2015-08-05 | Refrigerator |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JPWO2017022102A1 (en) |
| CN (1) | CN206546057U (en) |
| WO (1) | WO2017022102A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109900058A (en) * | 2017-12-11 | 2019-06-18 | 日立空调·家用电器株式会社 | Refrigerator, premix glycol composition and hard polyurethane foams |
| CN111936809A (en) * | 2018-06-27 | 2020-11-13 | Lg电子株式会社 | Vacuum insulation body and refrigerator |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2020034205A (en) * | 2018-08-29 | 2020-03-05 | 日立グローバルライフソリューションズ株式会社 | refrigerator |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5537458U (en) * | 1978-09-01 | 1980-03-10 | ||
| JPS61119090U (en) * | 1985-01-10 | 1986-07-26 | ||
| JP2003075057A (en) * | 2001-09-05 | 2003-03-12 | Fujitsu General Ltd | Piping holder of electric refrigerator |
| JP2005048979A (en) * | 2003-07-30 | 2005-02-24 | Hitachi Home & Life Solutions Inc | Refrigerator |
| JP4134865B2 (en) * | 2003-09-17 | 2008-08-20 | 三菱電機株式会社 | Freezer refrigerator |
| JP4196851B2 (en) * | 2004-02-19 | 2008-12-17 | 三菱電機株式会社 | refrigerator |
| JP2006010242A (en) * | 2004-06-28 | 2006-01-12 | Matsushita Electric Ind Co Ltd | Refrigerator |
-
2015
- 2015-08-05 CN CN201590000591.0U patent/CN206546057U/en active Active
- 2015-08-05 JP JP2017532320A patent/JPWO2017022102A1/en active Pending
- 2015-08-05 WO PCT/JP2015/072255 patent/WO2017022102A1/en active Application Filing
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109900058A (en) * | 2017-12-11 | 2019-06-18 | 日立空调·家用电器株式会社 | Refrigerator, premix glycol composition and hard polyurethane foams |
| CN111936809A (en) * | 2018-06-27 | 2020-11-13 | Lg电子株式会社 | Vacuum insulation body and refrigerator |
| CN111936809B (en) * | 2018-06-27 | 2022-08-26 | Lg电子株式会社 | Vacuum insulation body and refrigerator |
| US11740008B2 (en) | 2018-06-27 | 2023-08-29 | Lg Electronics Inc. | Vacuum adiabatic body and refrigerator |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2017022102A1 (en) | 2017-02-09 |
| JPWO2017022102A1 (en) | 2018-03-01 |
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