CN203249460U - Heat insulation box body, refrigerator with heat insulation box body and hot water storage device with heat insulation box body - Google Patents

Heat insulation box body, refrigerator with heat insulation box body and hot water storage device with heat insulation box body Download PDF

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Publication number
CN203249460U
CN203249460U CN2013201392612U CN201320139261U CN203249460U CN 203249460 U CN203249460 U CN 203249460U CN 2013201392612 U CN2013201392612 U CN 2013201392612U CN 201320139261 U CN201320139261 U CN 201320139261U CN 203249460 U CN203249460 U CN 203249460U
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China
Prior art keywords
heat insulating
insulating box
vacuumed insulation
insulation panel
hard polyurethane
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Withdrawn - After Issue
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CN2013201392612U
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Chinese (zh)
Inventor
难波章弘
花冈祥
川上俊史
横山淳一
儿岛喜彦
中津哲史
辻原雅法
松井永
今野博司
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Mitsubishi Electric Corp
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Mitsubishi Electric Corp
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L59/00—Thermal insulation in general
    • F16L59/06—Arrangements using an air layer or vacuum
    • F16L59/065—Arrangements using an air layer or vacuum using vacuum
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
    • B29C44/12—Incorporating or moulding on preformed parts, e.g. inserts or reinforcements
    • B29C44/18—Filling preformed cavities
    • 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
    • F25D23/062—Walls defining a cabinet
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2075/00—Use of PU, i.e. polyureas or polyurethanes or derivatives thereof, as moulding material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
    • B29K2995/0037—Other properties
    • B29K2995/0063—Density
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
    • B29K2995/0037—Other properties
    • B29K2995/0082—Flexural strength; Flexion stiffness
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/762—Household appliances
    • B29L2031/7622—Refrigerators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
    • F24H1/18—Water-storage heaters
    • F24H1/181—Construction of the tank
    • F24H1/182—Insulation
    • 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
    • F25D2201/00—Insulation
    • F25D2201/10—Insulation with respect to heat
    • F25D2201/14—Insulation with respect to heat using subatmospheric pressure

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Refrigerator Housings (AREA)
  • Thermal Insulation (AREA)
  • Details Of Fluid Heaters (AREA)

Abstract

The utility model relates to a heat insulation box body, a refrigerator with the heat insulation box body and a hot water storage device with the heat insulation box body. The heat insulation box body (1) is provided with an outer box (2), an inner box (3), vacuum heat insulation pieces (6) and hard polyurethane foam (5), wherein the vacuum heat insulation pieces (6) are filled in a space (4) formed between the outer box (2) and the inner box (3), the filling rate of the vacuum heat insulation pieces (6) in the space (4) is 40%-80%, and the bending elastic modulus of the hard polyurethane foam (5) is more than 15.0MPa.

Description

Heat insulating box, the refrigerator with this heat insulating box and hot water storage device
Technical field
The utility model relates to the heat insulating box of having filled hard polyurethane fat vacuole foam and Vacuumed insulation panel, the refrigerator with this heat insulating box and hot water storage device.
Background technology
In recent years, from the viewpoint of the security of earth environment protection, nuclear power station, for economize on resources, energy-conservation, especially for power saving, carried out various effort.
From viewpoint energy-conservation, power saving, a kind of technology has been proposed, become in the heat insulating box of outline by outer container and interior box-shaped, except hard polyurethane fat vacuole foam, also configure Vacuumed insulation panel, for example proposed that " a kind of heat insulating box is more than the 8.0MPa and density is 60kg/m by the modulus of elasticity in static bending 3Hard polyurethane fat vacuole foam following, that guaranteed rigidity intensity and heat-proof quality and Vacuumed insulation panel consist of, and the coverage rate of described Vacuumed insulation panel has surpassed 50% of outer container surface area." (with reference to patent documentation 1).
[prior art document]
No. 3478810 communique of [patent documentation 1] Japan Patent
Vacuumed insulation panel has for example heat-proof quality more than 6 times with respect to the heat-proof quality of in the past hard polyurethane fat vacuole foam.Thus, from energy-conservation viewpoint grade, in the space that is formed between outer container and the interior case, except hard polyurethane fat vacuole foam, also configured Vacuumed insulation panel.And in recent years, along with energy-conservation requirement grows to even greater heights, for example as the heat insulating box of patent documentation 1 record, the use amount that is configured in the Vacuumed insulation panel on the heat insulating box also increases.
On the other hand, in recent years, for heat insulating box, from the viewpoint of the high capacity of save space and internal volume, also seek to be formed on space between outer container and the interior case and be the reducing of wall thickness of heat insulating box.But in heat insulating box in the past, hard polyurethane fat vacuole foam is mainly brought into play heat insulating function, and Vacuumed insulation panel is to be produced according to the such technological thought of heat insulating function of assisting hard polyurethane fat vacuole foam.In other words, in the past heat insulating box is guaranteed the intensity of wall by hard polyurethane fat vacuole foam.Thus, in the time of reducing the wall thickness of heat insulating box, the loading of hard polyurethane fat vacuole foam also correspondingly reduces with the reduction of wall thickness, thereby heat-proof quality deficiency and the undercapacity of heat insulating box occur.Therefore, in heat insulating box in the past, there is the problem that reduces that is difficult to realize wall thickness.
Here, in the heat insulating box of patent documentation 1 record, increase the use amount (coverage rate) of Vacuumed insulation panel, and the modulus of elasticity in static bending that makes hard polyurethane fat vacuole foam (in other words, the rigidity of hard polyurethane fat vacuole foam) increases, thereby can reduce to a certain extent wall thickness.But the heat insulating box of patent documentation 1 record also is to make according to technological thought in the past, and hard polyurethane fat vacuole foam is mainly brought into play heat insulating function, the heat insulating function of the auxiliary hard polyurethane fat vacuole foam of Vacuumed insulation panel.In other words, the heat insulating box of patent documentation 1 record is also guaranteed the intensity of wall by hard polyurethane fat vacuole foam.Thus, for the heat-proof quality that suppresses hard polyurethane fat vacuole foam reduces, the modulus of elasticity in static bending of hard polyurethane fat vacuole foam can not be for more than the 10.0MPa.Therefore, in the heat insulating box of patent documentation 1 record, for guaranteeing the intensity of wall, need to guarantee to be filled in certain degree the amount of the hard polyurethane fat vacuole foam in the space between outer container and the interior case, have the still hard problem that reduces of realizing wall thickness.
That is to say, have following problem, when heat insulating box is in the past guaranteed heat-proof quality, realize the further expansion difficult of the internal volume of heat insulating box.
The utility model content
The utility model is researched and developed for solving above-mentioned problem, and its objective is provides a kind of when can guarantee heat-proof quality, can be more in the past than the heat insulating box of the internal volume that enlarged heat insulating box, the refrigerator with this heat insulating box and hot water storage device.
In the first technical scheme of the present utility model, heat insulating box has: outer container and interior case; Be filled in Vacuumed insulation panel and hard polyurethane fat vacuole foam in the first space that is formed between described outer container and the described interior case, at least facial at left and right sides and back part is equipped with described Vacuumed insulation panel, the filling rate of the described Vacuumed insulation panel in described the first space is 40%～80%, described Vacuumed insulation panel is more than 60% with respect to the area ratio of outer container surface area, and the modulus of elasticity in static bending of described hard polyurethane fat vacuole foam is more than the 15.0MPa.
In the second technical scheme of the present utility model, such as the described heat insulating box of the first technical scheme, have door, described door has: outside plate and inner panel; Be filled in described Vacuumed insulation panel and described hard polyurethane fat vacuole foam in the second space that is formed between described outside plate and the described interior case, in the summation of described the first space and described second space, the filling rate of described Vacuumed insulation panel is 40%～80%.
In the 3rd technical scheme of the present utility model, such as the described heat insulating box of the first technical scheme, the mean coefficient of heat conductivity of described hard polyurethane fat vacuole foam is 0.018W/mK～0.025W/mK, and the thermal conductivity factor of described Vacuumed insulation panel is 0.0030W/mK～0.0012W/mK.
In the 4th technical scheme of the present utility model, such as the described heat insulating box of the second technical side, the mean coefficient of heat conductivity of described hard polyurethane fat vacuole foam is 0.018W/mK～0.025W/mK, and the thermal conductivity factor of described Vacuumed insulation panel is 0.0030W/mK～0.0012W/mK.
In the 5th technical scheme of the present utility model, such as the described heat insulating box of the first technical scheme, described Vacuumed insulation panel is separated the configuration of predetermined distance ground from described outer container and described interior case, and described Vacuumed insulation panel is embedded in the described hard polyurethane fat vacuole foam.
In the 6th technical scheme of the present utility model, such as the described heat insulating box of the first technical scheme, on a side of described outer container, form the inlet that at least one is used for the stoste of described hard polyurethane fat vacuole foam is injected described the first space, on a side of the described outer container that is formed with this inlet, a plurality of described Vacuumed insulation panels relatively are set up in parallel, on in these Vacuumed insulation panels at least one, be formed with otch at least one bight, described inlet and described otch relatively form.
In the 7th technical scheme of the present utility model, such as the described heat insulating box of the first technical scheme, in the left and right sides face and back part of described outer container, the ratio of the area that the described Vacuumed insulation panel on each face is shared is all above 70%.
In the 8th technical scheme of the present utility model, such as the described heat insulating box of the first technical scheme, used foam free density to be 35kg/m 3Above and be 60kg/m for the preferred package amount of described heat insulating box 3Above hard polyurethane fat vacuole foam.
In addition, refrigerator of the present utility model has: heat insulating box of the present utility model; Cooling device, described cooling device cools off the air that supplies to the storeroom that is formed at described heat insulating box.
In addition, hot water storage device of the present utility model has: heat insulating box of the present utility model; The heater that water is heated; Water tank, described water tank are arranged in the described heat insulating box, and storage is by the warmed-up water of described heater.
The effect of utility model
Heat insulating box of the present utility model is to bring into play mainly according to Vacuumed insulation panel that heat insulating function is such to be researched and developed with the diverse new technology thought of technological thought in the past.Thus, in heat insulating box of the present utility model, the filling rate that is formed on the Vacuumed insulation panel in the first space between outer container and the interior case is 40%～80%, and Vacuumed insulation panel is more than 60% with respect to the area ratio of outer container surface area, and the filling rate of Vacuumed insulation panel and area ratio are than increased in the past.That is to say, as mentioned above, Vacuumed insulation panel has the heat-proof quality with respect to the hard polyurethane fat vacuole foam of in the past heat insulating box, for example heat-proof quality more than 6 times.Thus, even reducing wall thickness, heat insulating box of the present utility model also can bring into play sufficient heat insulating function.
In addition, for for example about 6MPa～12MPa, the modulus of elasticity in static bending of Vacuumed insulation panel is about 20MPa～40MPa with respect to the modulus of elasticity in static bending of the employed hard polyurethane fat vacuole of heat insulating box in the past foam.That is to say, the modulus of elasticity in static bending of Vacuumed insulation panel is higher than the employed hard polyurethane fat vacuole of heat insulating box foam in the past.Therefore, the filling rate of Vacuumed insulation panel can also be guaranteed intensity fully more in the past than the heat insulating box of the present utility model that increases.In addition, guarantee in the such technological thought in the past of the wall intensity of heat insulating box utilizing hard polyurethane fat vacuole foam, the coverage rate of the Vacuumed insulation panel in the heat insulating box is increased, and the filling rate of the Vacuumed insulation panel in the first space can not make the wall thickness attenuation of heat insulating box less than 40%.That is to say, making the loading of the modulus of elasticity in static bending Vacuumed insulation panel higher than hard polyurethane fat vacuole foam is more than 40%, guarantees the intensity of heat insulating box by Vacuumed insulation panel, and this situation is important when reducing the wall thickness of heat insulating box.
Here, increase by the filling rate that makes Vacuumed insulation panel, the filling rate of hard polyurethane fat vacuole foam reduces, thereby the bonding force of outer container and interior case is not enough, its result, and the intensity of heat insulating box may reduce.But heat insulating box of the present utility model is mainly to bring into play the such technological thought of heat insulating function according to Vacuumed insulation panel as described above to research and develop.Thus, in heat insulating box of the present utility model, little by the impact that increase produces, the heat-proof quality of hard polyurethane fat vacuole foam reduces of the modulus of elasticity in static bending (in other words, the rigidity of hard polyurethane fat vacuole foam) of hard polyurethane fat vacuole foam.Thus, in heat insulating box of the present utility model, can make the modulus of elasticity in static bending ratio employed hard polyurethane fat vacuole of the heat insulating box foam in the past of hard polyurethane fat vacuole foam large, more than 15.0MPa.Therefore, the heat insulating box of the application's utility model can also prevent the strength decreased that the reduction because of the filling rate of hard polyurethane fat vacuole foam causes.
Therefore, the utility model can be provided at when guaranteeing heat-proof quality, can be more in the past than the heat insulating box of the internal volume that enlarged heat insulating box, the refrigerator with this heat insulating box and hot water storage device.
Description of drawings
Fig. 1 is the orthogonal view of the heat insulating box of embodiment 1 of the present utility model.
Fig. 2 is the rearview of the heat insulating box of embodiment 1 of the present utility model.
Fig. 3 is the stereogram of the heat insulating box of embodiment 1 of the present utility model.
Fig. 4 is be used to the key diagram of the manufacturing process of the heat insulating box that embodiment 1 of the present utility model is described (stereogram).
Fig. 5 is another routine stereogram of the heat insulating box of expression embodiment 1 of the present utility model.
Fig. 6 is the stereogram of another example of the heat insulating box of expression embodiment 1 of the present utility model.
Fig. 7 is the orthogonal view of the heat insulating box of embodiment 2 of the present utility model.
Fig. 8 is the orthogonal view of the heat insulating box of expression embodiment 3 of the present utility model.
Fig. 9 is the sectional side view of the heat insulating box of embodiment 4 of the present utility model.
Figure 10 is another routine sectional side view of the heat insulating box of expression embodiment 4 of the present utility model.
Figure 11 be the door in the heat insulating box of expression embodiment 4 of the present utility model mounting structure an example, the stereogram of door when opening.
Figure 12 is the sectional side view of the refrigerator of expression embodiment 5 of the present utility model.
Figure 13 is the line chart of the relation of the actual measurement polyurethane density of embodiment 1 of the present utility model and the modulus of elasticity in static bending.
Figure 14 is the line chart of the result of calculation of the expression Vacuumed insulation panel filling rate of embodiment 1 of the present utility model and box deformation amount.
Figure 15 is the line chart of the result of calculation of the expression laterodorsal Vacuumed insulation panel area ratio of embodiment 5 of the present utility model and box deformation amount.
The specific embodiment
Below, with reference to description of drawings heat insulating box of the present utility model and have the embodiment of the refrigerator of this heat insulating box.
Embodiment 1
Fig. 1 is the orthogonal view of the heat insulating box of embodiment 1 of the present utility model.Fig. 2 is the rearview of this heat insulating box.In addition, Fig. 3 is the stereogram of this heat insulating box.In addition, in fact Vacuumed insulation panel 6 is configured in (suitable with the first space of the present utility model) in the space 4 that is formed between outer container 2 and the interior case 3 as described below.But, in Fig. 2, be easily to understand the shape of the Vacuumed insulation panel 6 of the rear side that is configured in heat insulating box 1, see through outer container 2 the back side show Vacuumed insulation panel 6(and that is to say, represent Vacuumed insulation panel 6 with solid line).In addition, in Fig. 3, omitted the diagram of guide rail 16.
Below, use these accompanying drawings, the heat insulating box 1 of present embodiment 1 is described.
Heat insulating box 1 has the outer container 2 that is made of for example metal and the interior case 3 that is made of for example resin.And, in the space 4 that is formed between outer container 2 and the interior case 3, that is to say, in end face, left and right side, the back side and the bottom surface sections of heat insulating box 1, configuration (filling) has hard polyurethane fat vacuole foam 5 and Vacuumed insulation panel 6.
Heat insulating box 1 hypothesis of present embodiment 1 is the employed heat insulating box of refrigerator.Thus, the heat insulating box 1 of present embodiment 1 forms that end face and bottom surface be closed basal edge barrel shape (roughly rectangular shape), becomes the shape of front face opening.And the inner space of heat insulating box 1 is divided into three storerooms 7 by for example two dividing plates 24.In addition, in Fig. 3, for distinguishing these storerooms, be expressed as 7,7 ', 7 ".On these dividing plates 24, side for example is equipped with panel beating covering 34(by screw etc. in front, more than the thickness 1mm).By screw etc. this panel beating covering 34 is fastened on the heat insulating box 1, thus, becomes dividing plate 24 and be installed in structure on the heat insulating box 1.Like this, use panel beating covering 34 that dividing plate 24 is installed on the heat insulating box 1, can improve the intensity of heat insulating box 1.
In addition, in the heat insulating box 1 of present embodiment 1, in the inside of heat insulating box 1 (that is to say interior case 3), be formed with the guide rail 16 that is arranged on the shelf of storeroom 7 for supporting.
The heat insulating box 1 of such structure is for example made as follows.At first, in advance Vacuumed insulation panel 6 is adhesively fixed on the outer container 2.Then, for example be adhesively fixed outer container 2 and interior case 3.Then, as shown in Figure 4, take the rear side of heat insulating box 1 as on state under, the raw material of the hard polyurethane fat vacuole foam 5 of the inlet 32 filling liquid shapes by being formed on rear side carries out foaming, thus, utilize in hard polyurethane fat vacuole foam 5 packing spaces 4.
Thus, in the rear side of heat insulating box 1, the position relative with inlet 32 can not configure Vacuumed insulation panel 6.Therefore, in present embodiment 1, in the rear side of heat insulating box 1, dispose as illustrated in fig. 2 Vacuumed insulation panel 6.That is to say, the Vacuumed insulation panel 6 that is configured in the rear side of heat insulating box 1 is not integrative-structure, arranges side by side but be divided into a plurality of (for example 2～3).And inlet 32 is relative with the bight of these Vacuumed insulation panels 6.By forming otch 33 in the bight relative with inlet 32, can increase the area of Vacuumed insulation panel 6, and avoid inlet 32 ground configuration Vacuumed insulation panel 6(and that is to say, can inject the stoste of hard polyurethane fat vacuole foam 5).By with such structure configuration Vacuumed insulation panel 6, can provide heat-proof quality better heat insulating box 1.
In addition, the formation position of inlet 32 is nothing but an example.And the shape that the shape of heat insulating box 1 namely is formed on the space 4 between outer container 2 and the interior case 3 correspondingly suitably forms and gets final product.Therefore, the shape of the formation position of inlet 32 and heat insulating box 1 is formed on correspondingly arbitrarily that a side (left lateral sides, side, right side, front, the back side, end face, bottom surface etc.) get final product.
Here, the heat insulating box 1 of present embodiment 1 be based on heat insulating box in hard polyurethane fat vacuole foam bring into play mainly that the diverse new technology thought of the such technological thought in the past of heat insulating function develops, become the structures of Vacuumed insulation panel 6 main performance heat insulating functions.Thus, in the heat insulating box 1 of present embodiment 1, the filling rate of the Vacuumed insulation panel 6 in the space 4 is more than 40%.Like this, the filling rate by making the Vacuumed insulation panel 6 in the space 4 is than increasing in the past, and heat-proof quality is than improving in the past, thereby even the wall ratio of heat insulating box 1 is in the past thin, also heat-proof quality can be guaranteed with in the past more than the same degree.In addition, Figure 14 shows Vacuumed insulation panel 6 shared filling rate and the deflection when applying load to heat insulating box 1 in space 4.The modulus of elasticity in static bending of Vacuumed insulation panel 6 is larger than hard polyurethane fat vacuole foam 5, therefore by increasing the ratio of Vacuumed insulation panel 6, can reduce the deflection of heat insulating box 1, in other words, can significantly improve the intensity of heat insulating box 1.At this moment, also be resultful although increase thickness, by area increased, can easily make the wall thickness attenuation of heat insulating box 1.Thus, in the heat insulating box 1 of present embodiment 1, at least side surface part and the back part at outer container 2 has Vacuumed insulation panel 6, the filling rate of the Vacuumed insulation panel 6 in the space 4 is more than 40%, Vacuumed insulation panel 6 is more than 60% with respect to the area ratio of the surface area of outer container 2, thus, become the modulus of elasticity in static bending is mainly born the wall intensity of heat insulating box 1 than the high Vacuumed insulation panel 6 of the employed hard polyurethane fat vacuole of heat insulating box foam in the past structure.Thus, in the heat insulating box 1 of present embodiment 1, owing to can make the wall thickness attenuation of heat insulating box 1, just storeroom 7 can be enlarged so need not change appearance and size, the collecting article that can be stored in heat insulating box 1 inside can be increased.In addition, during the wall strength decreased, strain occurs in heat insulating box 1, and the inner shelf whereabouts that has or the box of drawer type and the such unfavorable condition of sliding variation of door for example occur.
In addition, because of following reason etc., in the heat insulating box 1 of present embodiment 1, the filling rate of the Vacuumed insulation panel 6 in the space 4 is below 80%.According to the technological thought of above-mentioned present embodiment 1, it is desirable to space 4 interior whole employing Vacuumed insulation panels 6.But also as shown in Figure 1, the guide rail 16 that is formed at interior case 3 is 4 interior outstanding to the space.In addition, in the situation that heat insulating box 1 is used to for example refrigerator, in space 4, also disposes and be connected the parts of the rotating speed of controlling compressor etc. with control panel to carrying compressor on heat insulating box 1) etc. the wirning harness that connects.In addition, in the situation that heat insulating box 1 is used to for example refrigerator, in space 4, also dispose refrigerant pipe etc.Thus, be in the space 4 interior when all filling with Vacuumed insulation panel 6, the shape complicated of Vacuumed insulation panel 6, the formation difficult of Vacuumed insulation panel 6.In addition, for strain occurs in the strength decreased that suppresses heat insulating box 1, need to carry out bonding to outer container 2 and interior case 3, but in interior case 3, be equipped with for the situation of the guide rail 16 that the shelf that is arranged on storeroom 7 is supported and other parts more, thus, even it is easy that Vacuumed insulation panel 6 is bonded on the outer container 2, it also is difficult carrying out bonding to Vacuumed insulation panel 6 and interior case 3.But, fill by making hard polyurethane fat vacuole foam 5 foaming, even in the situation that space 4 interior guide rail 16 and other parts of existing, also no problemly bonding outer container 2 and interior case 3.At this moment, during the scope (that is to say the space) of not filled by hard polyurethane fat vacuole foam 5 in heat insulating box 1 interior generation, the heat-proof quality of heat insulating box 1 reduces.Therefore, in the heat insulating box 1 of present embodiment 1, for guaranteeing that for the gap (for example about 6mm) of filling necessary certain degree of hard polyurethane fat vacuole foam, making the filling rate of the Vacuumed insulation panel 6 in the space 4 is below 80%.
Yet by increasing the filling rate of the Vacuumed insulation panel 6 in the space 4, the filling rate of the hard polyurethane fat vacuole foam 5 in the space 4 reduces.Thus, the bonding force of outer container 2 and interior case 3 is not enough, its result, and the intensity of heat insulating box 1 may reduce.But the heat insulating box 1 of present embodiment 1 is researched and developed according to the such technological thought of Vacuumed insulation panel 6 main performance heat insulating functions as described above.Thus, the increase because of the modulus of elasticity in static bending (in other words, the rigidity of hard polyurethane fat vacuole foam 5) of hard polyurethane fat vacuole foam 5 produces, the impact of the reduction of the heat-proof quality of hard polyurethane fat vacuole foam 5 is little.Thus, in the heat insulating box 1 of present embodiment 1, the density ratio that can make hard polyurethane fat vacuole foam 5 is high (60kg/m for example in the past 3Above), as shown in figure 13, make the modulus of elasticity in static bending ratio employed hard polyurethane fat vacuole of the heat insulating box foam in the past of hard polyurethane fat vacuole foam 5 large, more than 15.0MPa.Therefore, the heat insulating box 1 of present embodiment 1 can also prevent the strength decreased that the reduction by the filling rate of hard polyurethane fat vacuole foam 5 causes, does not exist can not bear the strain that the weight because of collecting article produces and make the problems such as heat insulating box 1 distortion.That is to say, also no problem as the quality of heat insulating box 1 even use in a large number Vacuumed insulation panel 6, can realize energy-conservation by good heat-proof quality.
In addition, for example the amount of the stoste of the hard polyurethane fat vacuole foam 5 by making the 4 interior injections to the space can increase the value of the density of hard polyurethane fat vacuole foam 5 than in the past many.
In addition, in present embodiment 1, the higher limit of the modulus of elasticity in static bending of hard polyurethane fat vacuole foam 5 is below the 150.0MPa.This be because, when the modulus of elasticity in static bending of hard polyurethane fat vacuole foam 5 was larger than 150.0MPa, the density of hard polyurethane fat vacuole foam 5 was too high, did not become spongy and solidified, the heat-proof quality of hard polyurethane fat vacuole foam 5 sharply reduces.
In addition, the heat insulating box 1 employed Vacuumed insulation panel 6 of present embodiment 1 can adopt known structure, but in present embodiment 1, for example uses following Vacuumed insulation panel 6.That is to say, suppose that the heat insulating box 1 of present embodiment 1 is used to the refrigerator of following specification.
(1) the total thickness of slab that uses outer container 2 and interior case 3 is 30mm as the average wall thickness of 2mm, heat insulating box 1, that is to say, the average distance of the wall thickness direction in space 4 is the heat insulating box 1 of 28mm.
(2) and, the thickness of Vacuumed insulation panel 6 is 20mm, the average stream of the wall thickness direction of the hard polyurethane fat vacuole foam 5 in the space 4 is 8mm.
(3) thermal conductivity factor of hard polyurethane fat vacuole foam 5 is 0.018W/mK～0.025W/mK.
(4) internal volume is the 500L rank, and power consumption is below the 40W.
Under such condition, when the thermal conductivity factor of Vacuumed insulation panel 6 surpassed 0.0030W/mK, wall thickness reduced the impact of heat-proof quality is become large, and heat-proof quality is compared variation (that is to say, it is larger than 40W that power consumption becomes) with specification.Thus, in present embodiment 1, be below the 0.0030W/mK by the thermal conductivity factor that makes Vacuumed insulation panel 6, can prevent that the wall thickness attenuation is on the impact of heat-proof quality.In addition, when reducing the thermal conductivity factor of Vacuumed insulation panel 6, the related cost of every minimizing 0.001W/mK increases tremendously, in addition, as long as just can guarantee sufficient heat-proof quality for 0.0012W/mK, be the thermal insulation barriers of 0.0030～0.0012W/mK thereby Vacuumed insulation panel 6 uses thermal conductivity factor.And, as put down in writing shown in the table 1 of wall thickness, Vacuumed insulation panel filling rate, the polyurethane foam modulus of elasticity in static bending, box deformation amount of embodiment 1 of the present utility model.The project 1 of his-and-hers watches 1, when project 4 compares, when for example making wall thickness be reduced to 30mm from the past 40mm, be more than 40% and the modulus of elasticity in static bending of polyurethane is more than the 15Mpa by the filling rate that makes Vacuumed insulation panel 6, can guarantee that heat insulating box 1 has and the equal above casing intensity of product in the past.
[table 1]
Project Wall thickness mm Filling rate % Polyurethane modulus of elasticity in static bending Mpa The box deformation amount
1 40 20 9 1
2 30 20 9 1.53
3 30 40 9 1.08
4 30 40 15 0.93
In addition, in the heat insulating box 1 of present embodiment 1, because of following reason, as the Vacuumed insulation panel 6 preferred Vacuumed insulation panels that the aluminium-vapour deposition film are used for exterior film that use.This be because, bear in the heat insulating box 1 of main heat insulation present embodiment 1 at Vacuumed insulation panel 6, compared with the past, so-called heat bridge (the exterior film by Vacuumed insulation panel is from the surface of Vacuumed insulation panel to back side transferring heat) might occur.Thus, in the heat insulating box 1 of present embodiment 1, use than the Vacuumed insulation panel more difficult generation heat bridge of Vacuumed insulation panel that the aluminium foil film is used for exterior film, that the aluminium-vapour deposition film is used for exterior film as Vacuumed insulation panel 6 is preferred.
In addition, as the modulus of elasticity in static bending of the hard polyurethane fat vacuole foam 5 in the present embodiment 1, the assay method of density, from the left and right side, each centers of the back side, end face and these five faces of bottom surface cuts out the hard polyurethane fat vacuole foam 5 of the size more than 100 * 100 * 5mm, calculate according to its mean value.In addition, in the situation that the center has the part such as refrigerant pipe and lead-in wire and can not only cut out hard polyurethane fat vacuole foam 5, adopt in the distance center position nearest position can cut out the position of the hard polyurethane fat vacuole foam 5 of the size more than 100 * 100 * 5mm.
Above, in the heat insulating box 1 of present embodiment 1 owing to can make the wall ratio of heat insulating box 1 in the past thin, thus can provide energy-conservation and internal volume efficient than in the past good heat insulating box 1.That is to say, can not change appearance and size ground and enlarge storeroom 7 than in the past, and can be more in the past than the collecting article that increased the inside that can be stored in heat insulating box 1.
In addition, the shape of the heat insulating box shown in the present embodiment 11 is nothing but an example.For example shown in Figure 5, also can utilize the inner space of three dividing plates, 24 division heat insulating boxes 1 and form four storerooms 7.In addition, for example shown in Figure 6, also can utilize the inner space of four dividing plates, 24 division heat insulating boxes 1 and form five storerooms 7.By increasing dividing plate 24, panel beating covering 34, can further improve the intensity of heat insulating box 1.That is to say, the quantity of storeroom 7 is more, and the effect that 34 pairs of casing intensity of panel beating covering improve is better, thus, even the average thickness attenuation of the hard polyurethane fat vacuole foam 5 of the part that is covered by Vacuumed insulation panel 6 (for example 5mm is following) also can be guaranteed sufficient casing intensity.Thus, the appearance and size ground that can not change heat insulating box 1 further enlarges storeroom 7, and can further increase the collecting article of the inside that can be stored in heat insulating box 1.
In addition, in present embodiment 1, about the internal structure of dividing plate 24, do not specify, but can certainly adopt the structure same with heat insulating box 1.That is to say, also hard polyurethane fat vacuole foam 5 and Vacuumed insulation panel 6 can be filled into the inner space of dividing plate 24, the filling rate of the Vacuumed insulation panel 6 of this moment is 40%～80%, and the modulus of elasticity in static bending of hard polyurethane fat vacuole foam 5 is more than the 15.0MPa.Consist of like this dividing plate 24, can further improve the heat-proof quality of heat insulating box 1.
Embodiment 2
In embodiment 1, by Vacuumed insulation panel 6 is sticked on the outer container 2, Vacuumed insulation panel 6 is configured in the space 4 that is formed between outer container 2 and the interior case 3.Be not limited to this, Vacuumed insulation panel 6 is for example as follows 4 configurations to the space also.In addition, there is not the project of special instruction about present embodiment 2, identical with embodiment 1, use identical Reference numeral to describe for identical function and structure.
Fig. 7 is the orthogonal view of the heat insulating box of embodiment 2 of the present utility model.
As shown in Figure 7, in the heat insulating box 1 of present embodiment 2, be provided with condenser pipe 9 in the inner face side of outer container 2.This condenser pipe 9 is the refrigerant pipes for the flow of refrigerant of the HTHP of discharging from compressor, and the cold-producing medium that will flow in this pipe arrangement via tube wall and the outer container 2 of condenser pipe 9 cools off (condensation) by extraneous air.In addition, in the heat insulating box 1 of present embodiment 2, on the inwall that becomes not with the outer container 2 of the overlapping position of condenser pipe 9, the distance piece 8 of the above thickness of diameter with condenser pipe 9 is installed.And Vacuumed insulation panel 6 is secured on this distance piece 8.That is to say, in the heat insulating box 1 of present embodiment 2, Vacuumed insulation panel 6 is separated the configuration of predetermined distance ground from outer container 2 and interior case 3, and Vacuumed insulation panel 6 is embedded in the hard polyurethane fat vacuole foam 5.
Above, in the heat insulating box 1 that consists of in this wise such as present embodiment 2, by like this Vacuumed insulation panel 6 being embedded in the hard polyurethane fat vacuole foam 5, even in the situation that there is condenser pipe 9 in the outer container 2, also can configure Vacuumed insulation panel 6.
In addition, Vacuumed insulation panel 6 has following feature, temperature is higher, gas around more easily absorbing, inner vacuum descends, and thermal conductivity factor worsens, but by making Vacuumed insulation panel 6 away from temperature high outer container 2 and condenser pipe 9, can reduce the temperature of Vacuumed insulation panel 6 and suppress deteriorated, the high heat insulating box of long-term reliability 1 can be provided.
In addition, Vacuumed insulation panel 6 has following feature, by the gas around absorbing, inner vacuum descends, thermal conductivity factor worsens, but by Vacuumed insulation panel 6 is embedded in the hard polyurethane fat vacuole foam 5, can reduce the amount of the gas on every side of Vacuumed insulation panel 6, thereby can suppress the deteriorated of Vacuumed insulation panel 6, the high heat insulating box of long-term reliability 1 can be provided.Especially, in the heat insulating box 1 of present embodiment 2, the density of the employed hard polyurethane fat vacuole of the density ratio heat insulating box in the past foam of hard polyurethane fat vacuole foam 5 is high.Thus, owing to can further reduce the amount of the gas on every side of Vacuumed insulation panel 6, so can further suppress the deteriorated of Vacuumed insulation panel 6, can provide the high heat insulating box of long-term reliability 1.
In addition, in present embodiment 2, be illustrated as example take the heat insulating box 1 that condenser pipe 9 is configured in the space 4, but in the heat insulating box 1 in condenser pipe 9 is not arranged on space 4, Vacuumed insulation panel 6 can certainly be embedded in the hard polyurethane fat vacuole foam 5.Owing to can reduce the amount of the gas on every side of Vacuumed insulation panel 6, so can suppress the deteriorated of Vacuumed insulation panel 6, can provide the high heat insulating box of long-term reliability 1.
Embodiment 3
According to shape of interior case 3 etc., be not limited to the structure shown in embodiment 1 and the embodiment 2, also can for example as follows Vacuumed insulation panel 6 be configured in the space 4.In addition, identical with embodiment 1 or embodiment 2 about the project that does not have in the present embodiment 3 to specify, use identical Reference numeral to describe for identical function and structure.
Fig. 8 is the orthogonal view of the heat insulating box of expression embodiment 3 of the present utility model.
As shown in Figure 8, the heat insulating box 1 of present embodiment 3 becomes in interior case 3 and does not form guide rail 16(with reference to Fig. 1, Fig. 7) structure.Become like this at interior case 3 in the situation of shape of easy stickup Vacuumed insulation panel 6, also all or part of of Vacuumed insulation panel 6 can be configured in the interior case 3.
Above, in the heat insulating box 1 that consists of in this wise such as present embodiment 3, can utilize the Vacuumed insulation panel 6 of less amount to provide energy-conservation and internal volume efficient than in the past good heat insulating box 1.That is to say, for example will stick on the Vacuumed insulation panel 6 of present embodiment 3 formed objects on the outer container 2.In this situation, the surface area of case 3 is large in the surface area ratio of outer container 2, thereby such as in the bight etc., is formed on Vacuumed insulation panel 6 gap each other and compares larger with the situation that Vacuumed insulation panel 6 is disposed at interior case 3.In other words, by Vacuumed insulation panel 6 being configured in the interior case 3, compare with the situation that Vacuumed insulation panel 6 with formed objects is configured in the outer container 2, loss can be reduced to measure accordingly with not being formed on Vacuumed insulation panel 6 gap each other, can provide efficient better heat insulating box 1.
Embodiment 4
Have at the heat insulating box 1 shown in embodiment 1～embodiment 3 in the situation of door, also can adopt for example following structure.In addition, identical with embodiment 1～embodiment 3 about the project that does not have in the present embodiment 4 to specify, for identical function and structure, use identical Reference numeral to describe.
Fig. 9 is the sectional side view of the heat insulating box of embodiment 4 of the present utility model.
As shown in Figure 9, the heat insulating box 1 of present embodiment 4 has for the door 10 that the peristome that is divided each storeroom 7 that is formed on inside is opened and closed.10 to have a plane materiel 12(that is formed by for example metal suitable with outside plate of the present utility model for this) and the inner panel 13 that formed by for example resin.And, suitable with second space of the present utility model at the space 10a(that is formed between plane materiel 12 and the inner panel 13) in, configuration (filling) has hard polyurethane fat vacuole foam 5 and Vacuumed insulation panel 6.Door 10 also is based on the technological thought shown in embodiment 1～embodiment 3 (technological thoughts of Vacuumed insulation panel 6 main performance heat insulating functions) formation, and the filling rate of the Vacuumed insulation panel 6 in the 10a of space is 40%～80%.
When making such door 10, in advance Vacuumed insulation panel 6 is adhesively fixed on the plane materiel 12, and the raw material of the hard polyurethane fat vacuole foam 5 of filling liquid shape carries out foaming, can utilize thus in the hard polyurethane fat vacuole foam 5 packing space 10a.
In addition, the structure of door 10 shown in Figure 9 is nothing but an example.For example, in storeroom 7 sides (inner panel 13 sides) of door 10, sometimes be equipped with for framework that the containing box that is accommodated in storeroom 7 is supported etc.In such situation, for framework (is formed nut portions at door 10) by screw fastening on door 10, as shown in Figure 9, preferably storeroom 7 sides (inner panel 13 sides) at space 10a dispose hard polyurethane fat vacuole foam 5.But, inferior in the situation of the part that is not installed in especially door 10 storeroom 7 sides (inner panel 13 sides), also can for example consist of as shown in Figure 10 door 10.
Figure 10 is another routine sectional side view of the heat insulating box of expression embodiment 4 of the present utility model.
That is to say, as shown in figure 10, also all or part of of Vacuumed insulation panel 6 can be configured on the inner panel 13.At this moment, even in the situation of the Vacuumed insulation panel 6 that uses formed objects, compare with the situation that disposes Vacuumed insulation panel 6 on the plane materiel 12, the scope (with reference to the A section of Fig. 9) that the Vacuumed insulation panel that is not produced up and down 6 of door 10 covers is little, becomes the better heat insulating box 1 of efficient.
In addition, need to be at whole doors 10 configuration Vacuumed insulation panels 6.For example, in the situation that the temperature difference of (that is to say storeroom 7) is little in extraneous air and the heat insulating box 1, even Vacuumed insulation panel 6 is configured on the door 10, the effect that heat-proof quality is improved is also little.In such situation, even Vacuumed insulation panel 6 is not configured on the door 10, also can guarantee sufficient heat-proof quality.
In addition, the door 10 of present embodiment 4 is without particular limitation of the mounting structure to the main part of heat insulating box 1 (the framework part that is formed by outer container 2 and interior case 3) installation.For example, the mounting structure of drawer type that also can be by having used guide rail is installed in door 10 on the main part of heat insulating box 1.In addition, for example shown in Figure 11, also can pass through revolving mounting structure, door 10 is installed on the main part of heat insulating box 1.
Figure 11 be the door in the heat insulating box of expression embodiment 4 of the present utility model mounting structure an example, the stereogram of door when opening.
In the situation on the main part that door 10 is installed in heat insulating box 1 by revolving mounting structure, hinge 14 is fixed on heat insulating box 1 main part about a side.And, insert door 10 by the axle with hinge 14, door 10 is opened and closed rotatably.
In addition, in above-mentioned door 10, as shown in figure 11, preferably pad 11 is installed in storeroom 7 sides of door 10.This pad 11 is vinyl chloride systems for example.Closed door at 10 o'clock, front side flange surface 15 close contacts of the main part by making pad 11 and heat insulating box 1 can prevent that the air in the storeroom 7 from flowing out outside casing.
Above, in the heat insulating box 1 that consists of in this wise such as present embodiment 4, be in the summation of space 10a being formed on space 4 between outer container 2 and the interior case 3 and the inner space of door 10, the filling rate of Vacuumed insulation panel becomes 40%～80%.Thus owing to can make the wall thickness (that is to say the distance between outer container 2 and the interior case 3 and door 10 thickness) of heat insulating box 1 thinner than in the past, so can provide energy-conservation and internal volume efficient than in the past good heat insulating box 1.Thus, can not change appearance and size ground and enlarge storeroom 7 than in the past, can be more in the past than the collecting article that increased the inside that can be stored in heat insulating box 1.Therefore, can provide in the past high heat insulating box 1 of commodity value ratio.
In addition, increase by the filling rate that makes the Vacuumed insulation panel 6 in the space 4, the filling rate of the hard polyurethane fat vacuole foam 5 in the space 4 reduces.But in the heat insulating box 1 of present embodiment 4, the density ratio of hard polyurethane fat vacuole foam 5 is high (60kg/m for example in the past 3Above), the modulus of elasticity in static bending of hard polyurethane fat vacuole foam 5 is larger than the employed hard polyurethane fat vacuole of heat insulating box foam in the past, more than 15.0MPa.Therefore, the heat insulating box 1 of present embodiment 4 can also prevent the strength decreased that the reduction because of the filling rate of hard polyurethane fat vacuole foam 5 causes, does not have to bear the strain that the weight by collecting article and door 10 produces and makes the problem of heat insulating box 1 distortion etc.
Thus, can suppress heat insulating box 1 strain and door 10 is tilted, and can prevent the deterioration of outward appearance.In addition, can also prevent that the position relationship of pad 11 and front side flange surface 15 from misplacing and the generation gap, and the air in the storeroom 7 are flowed out outside casing.Therefore, also no problem as the quality of heat insulating box 1 even use in large quantities Vacuumed insulation panel 6, can realize energy-conservation by good heat-proof quality.
Embodiment 5
In the heat insulating box 1 shown in embodiment 1～embodiment 4, about the distortion of the heat insulating box 1 that causes because of strength decreased, gravity is large for the influence degree of the bottom surface sections of the influence degree comparison level of the intensity of vertical side surface part and back part and ceiling section.Thus, by carrying as described below Vacuumed insulation panel 6, can further improve the intensity of heat insulating box 1.In addition, identical with embodiment 1～embodiment 4 about the project that does not have in the present embodiment 5 to specify, for identical function and structure, use identical Reference numeral to describe.
About heat insulating box shown in Figure 11, on side surface part and back part, the result that Vacuumed insulation panel 6 is calculated with respect to the shared area occupation ratio of the area of each face and box deformation amount as shown in figure 15.In addition, the filling rate with Vacuumed insulation panel 6 is 40%, the deflection when area ratio is 50% is as 1.When the modulus of elasticity in static bending of Vacuumed insulation panel 6 is 20MPa～40MPa, the modulus of elasticity in static bending than hard polyurethane fat vacuole foam 5 is large, thereby the area of the Vacuumed insulation panel 6 of side surface part and back part is larger, and the deflection of heat insulating box 1 is less, namely can significantly improve the intensity of heat insulating box 1.
In addition, according to Figure 15, when the area ratio of Vacuumed insulation panel 6 surpassed 70%, the impact that brings for the intensity of heat insulating box 1 diminished.This be because, filling rate is calculated as 40%, the amount that makes the thickness of Vacuumed insulation panel 6 and enlarged areas correspondingly attenuation affect grow.If constant thickness, enlarge the area of Vacuumed insulation panel 6, increase filling rate, then surely not cause such situation, but when improving the filling rate of Vacuumed insulation panel 6, cost increases, thereby improves the intensity of heat insulating box 1 for not changing filling rate ground, as previously mentioned as long as improve area ratio, efficient is just high, if more than 70%, then can expect the guaranteeing of intensity, the wall thickness that can make heat insulating box 1 more unfertile land enlarges the volume of storeroom 7.
Above, in the heat insulating box 1 of present embodiment 5 owing to can make the wall ratio of heat insulating box 1 in the past thin, thus can provide energy-conservation and internal volume efficient than in the past good heat insulating box 1.That is to say, can not change appearance and size ground and enlarge storeroom 7 than in the past, can also be more in the past than the collecting article that increased the inside that can be stored in heat insulating box 1.
Embodiment 6
In the heat insulating box 1 shown in embodiment 1～embodiment 5, by improving the foam free density of hard polyurethane fat vacuole foam 5, can provide that intensity is more stable, good appearance, heat insulating box 1 that quality is high.In addition, there is not the project of special instruction about present embodiment 6, identical with embodiment 1～embodiment 5, for identical function and structure, use identical Reference numeral to describe.
The modulus of elasticity in static bending is increased and to improve the situation of intensity of heat insulating box 1 same as described above by the density that improves hard polyurethane fat vacuole foam 5, but when flowing directly into a large amount of polyurethane stoste and improving density, utilize the high polyurethane of expansion ratio in the past easily to make the polyurethane density unevenness with terminal part near inlet 32, it is difficult obtaining stable intensity.
Thus, by increasing foam free density, make the even density of hard polyurethane fat vacuole foam 5 become easy.Here, foam free density refers to, do not make polyurethane foaming and the density of hard polyurethane fat vacuole foam 5 when making polyurethane foaming under open state in the airtight space such as casing.In general, in narrow space, when polyurethane foaming, expansion, density ratio foam free density is high.
Hard polyurethane fat vacuole foam 5 such foaming bodies generally be inner bubble many, be the little side of density, heat insulation effect is high.Thus, the density of heat insulating box 1 normally used hard polyurethane fat vacuole foam 5 is 25～30kg/m 3About the little material of density used in a large number.Use this polyurethane foam, to make the modulus of elasticity in static bending be 15MPa with on when guaranteeing the intensity of heat insulating box 1, be in the heat insulating box of 8mm at above-mentioned polyurethane thickness for example, need to surpass preferred package amount (becoming the polyurethane amount when just being filled by hard polyurethane fat vacuole foam 5 in the casing of object), density is easily uneven.And, owing to having encapsulated the polyurethane of Duoing than the preferred package amount, so polyurethane overflows from the gap (for example junction surface of outer container 2 and interior case 3) of heat insulating box 1 and door 10, can not guarantee the hard polyurethane fat vacuole foam density of target, the such unfavorable condition of operation of the polyurethane that overflows easily occurs to need to remove in addition.
Here, by reducing the amount of the contained expanded material of polyurethane stoste, can improve foam free density.In the heat insulating box 1 that above-mentioned polyurethane thickness is 8mm, be 35kg/m by making foam free density for example 3, the density under the preferred package amount becomes 60kg/m 3Above, the modulus of elasticity in static bending 15MPa of hard polyurethane fat vacuole foam 5 can be guaranteed, and the inequality of density and the such unfavorable condition of leakage of polyurethane can be eliminated.Here, improve the foam free density of polyurethane and can bring impact to heat-proof quality, but because the filling rate of Vacuumed insulation panel 6 is 40%～80%, be small so the heat-proof quality of hard polyurethane fat vacuole foam 5 worsens the impact that the heat-proof quality of heat insulating box 1 and door 10 is brought as mentioned above.In addition, in the situation of above-mentioned polyurethane thickness less than 8mm, become 35kg/m by making foam free density 3Above, adjust the preferred package amount.
Above, in the heat insulating box 1 of present embodiment 6, can provide a kind of heat insulating box 1, can make the wall ratio of heat insulating box 1 in the past thin, and guarantee stable intensity and be difficult to occur the leakage of polyurethane, and can guarantee stable quality, energy-conservation and internal volume efficient is better than in the past.That is to say, can not change appearance and size ground and enlarge storeroom 7 than in the past, and can be more in the past than the collecting article that increased the inside that can be stored in heat insulating box 1.
Embodiment 7
In present embodiment 7, describe about an example of the refrigerator that used the heat insulating box 1 shown in the above-mentioned embodiment.In addition, identical with embodiment 1～embodiment 6 about the project that does not have in the present embodiment 7 to specify, for identical function and structure, use identical Reference numeral to describe.
Figure 12 is the sectional side view of the refrigerator of expression embodiment 5 of the present utility model.In addition, Figure 12 shows the refrigerator 100 of the heat insulating box shown in Figure 91 that has used embodiment 4.
In the refrigerator 100 of present embodiment 7, the storeroom 7 that is divided formation in the inside of heat insulating box 1 begins from top to use as refrigerating chamber 21, refrigerating chamber 22 and vegetable compartment 23.
In addition, in the refrigerator 100 of present embodiment 7, in heat insulating box 1, has the cooling device that the air supplied with for subtend refrigerating chamber 21, refrigerating chamber 22 and vegetable compartment 23 cools off.This cooling device by compressor 30, condenser pipe 9(with reference to Fig. 7), the formation such as not shown decompressor (expansion valve and capillary etc.) and cooler 27.That is to say, the refrigerator 100 of present embodiment 5 has the refrigeration cycle that becomes cooling device.Compressor 30 in the inscape of these cooling devices and decompressor are arranged in the Machine Room 29 of the rear portion downside that is formed at heat insulating box 1.Condenser pipe 9 is arranged on for example side surface part of heat insulating box 1.Cooler 27 is arranged on by interior case 3 and fan grill 26 and surrounds in the cooling chamber 25 that forms.In addition, in this cooling chamber 25, also be provided with the cooler fan 28 that the air of device 27 coolings that are cooled is carried to refrigerating chamber 21, refrigerating chamber 22 and vegetable compartment 23.In addition, be formed with control substrate chamber 31 at the rear portion of heat insulating box 1 upside, in this control substrate chamber 31, dispose the control substrate for the rotating speed of controlling compressor 30 and cooler fan 28 etc.
In the refrigerator 100 that consists of in this wise, the gas refrigerant of the HTHP of being sent by the compressor 30 that is positioned at Machine Room 29 via condenser pipe 9(with reference to Fig. 7) during be condensed.The liquid refrigerant of this cryogenic high pressure is depressurized the gas-liquid two-phase cold-producing medium that device reduces pressure into low-temp low-pressure, when flowing to cooler 27, for example becomes below-20 ℃.Air in the gas-liquid two-phase refrigerant cools cooling chamber 25 of this low-temp low-pressure, this cooled air is supplied with to refrigerating chamber 21, refrigerating chamber 22 and vegetable compartment 23 by cooler fan 28, thus, refrigerating chamber 21, refrigerating chamber 22 and vegetable compartment 23(are accommodated in the collecting article in these storerooms in more detail) be cooled.On the other hand, the gas-liquid two-phase cold-producing medium that the air in the cooling chamber 25 have been carried out the low-temp low-pressure after the cooling be cooled air heat and evaporation in the chamber 25 become the gas shape cold-producing medium of low pressure, are inhaled into compressor 30 and compressed again.
Above, in the refrigerator 100 that consists of in this wise such as present embodiment 7, be in the summation of space 10a being formed on space 4 between outer container 2 and the interior case 3 and the inner space of door 10, the filling rate of Vacuumed insulation panel becomes 40%～80%.Thus, even the wall thickness of heat insulating box 1 (that is to say the thickness of the distance between outer container 2 and the interior case 3 and door 10) is thinner than in the past, also can guarantee heat-proof quality.Therefore, owing to being difficult for making each storeroom to heat up, so can suppress to cool off required air quantity, can reduce the rotating speed of compressor 30, prolong the running dwell time.Thus, can make refrigerator 100 energy-conservation.In addition, the refrigerator 100 that consists of in this wise such as present embodiment 7 enlarges each storeroom with can not changing appearance and size than in the past, can also be than increased the collecting article that can be stored in each storeroom in the past.
In addition, by being configured in central authorities with the refrigerating chamber 22 of the temperature difference maximum of extraneous air, can make heat is four faces (becoming door 10, left and right side and the back side of front) from the face that outer gas cut enters refrigerating chamber 22.Thus, can make refrigerator 100 further energy-conservation.
In addition, in present embodiment 7, because being filled in the modulus of elasticity in static bending of the hard polyurethane fat vacuole foam 5 among space 4 and the space 10a is more than the 15.0MPa, so can guarantee the intensity of heat insulating box 1, can suppress to make heat insulating box 1 distortion because not bearing the strain that is produced by the weight of collecting article.Thus, can suppress heat insulating box 1 and strain occur and door 10 is tilted, and can prevent the deterioration of outward appearance.In addition, owing to the position relationship dislocation that can prevent pad 11 and front side flange surface 15 produces the gap, and make the interior air of refrigerating chamber 21, refrigerating chamber 22 and vegetable compartment 23 to heat insulating box 1 outer outflow, so can make refrigerator 100 further energy-conservation.
In addition, in present embodiment 7, do not specify about the distribution of the filling rate of the Vacuumed insulation panel 6 in space 4 and the space 10a, but also can be according to the temperature difference of extraneous air and each storeroom, in space 4 and space 10a, the filling rate of position change Vacuumed insulation panel 6 according to the rules.
For example, in refrigerating chamber 22, the temperature difference of internal temperature and extraneous air is maximum.Thus, the filling rate of the Vacuumed insulation panel 6 of left and right side, the back side and the front of the heat insulating box 1 in the scope relative with refrigerating chamber 22 (door 10) also can be than other scopes large (for example more than 60%).By consisting of in this wise, can suppress heat to the intrusion of the minimum refrigerating chamber 22 of temperature, can make refrigerator 100 further energy-conservation.
In addition, for example, external air temperature is for for example 30 ℃ the time, and Machine Room 29 for example becomes more than 35 ℃, and the temperature of control substrate chamber 31 rises to for example more than 40 ℃.That is to say, Machine Room 29 and control substrate chamber 31 are compared with other parts, and be larger with temperature difference in the storeroom.Thus, heat is easily invaded near the storeroom that is configured in Machine Room 29 and the control substrate chamber 31.Thus, being in the filling rate of the Vacuumed insulation panel 6 between Machine Room 29, control substrate chamber 31 and the storeroom also can be than other scopes large (for example more than 60%).By consisting of in this wise, can suppress heat and invade near storeroom from temperature high Machine Room 29 and control substrate chamber 31, can make refrigerator 100 further energy-conservation.
In addition, in present embodiment 7, the refrigerator 100 that has formed three storerooms (refrigerating chamber 21, refrigerating chamber 22, vegetable compartment 23) is illustrated, but Fig. 5 and as shown in Figure 6 to dividing in the heat insulating box 1 for example, the quantity that can certainly make the storeroom of refrigerator 100 is more than four.Even consist of in this wise refrigerator 100, also can access and above-mentioned same effect.
Industrial applicibility
Heat insulating box 1 of the present utility model can also be used to for example hot water storage device, and it has the heater that water is heated and the water tank that the water that is heated by this heater is stored.By water tank being configured in the inside of heat insulating box 1, can be more heat insulation than in the past little 1 pair of water tank of heat insulating box carries out by appearance and size, can make the hot water storage device save the space.
The explanation of Reference numeral
1 heat insulating box, 2 outer containers, 3 interior casees, 4 spaces, 5 hard polyurethane fat vacuole foams, 6 Vacuumed insulation panels, 7 storerooms, 8 distance pieces, 9 condenser pipes, 10,10a space, 11 pads, 12 plane materiels, 13 inner panels, 14 hinges, 15 front side flange surfaces, 16 guide rails, 21 refrigerating chambers, 22 refrigerating chambers, 23 vegetable compartment, 24 dividing plates, 25 cooling chambers, 26 fan grills, 27 coolers, 28 cooler fans, 29 Machine Rooms, 30 compressors, control substrate chambers 31,32 inlets, 33 otch, 34 panel beating coverings, 100 refrigerators.

Claims (10)

1. a heat insulating box is characterized in that having: outer container and interior case; Be filled in Vacuumed insulation panel and hard polyurethane fat vacuole foam in the first space that is formed between described outer container and the described interior case,
At least facial at left and right sides and back part is equipped with described Vacuumed insulation panel, the filling rate of the described Vacuumed insulation panel in described the first space is 40%～80%, described Vacuumed insulation panel is more than 60% with respect to the area ratio of outer container surface area, and the modulus of elasticity in static bending of described hard polyurethane fat vacuole foam is more than the 15.0MPa.
2. heat insulating box as claimed in claim 1 is characterized in that, has door,
Described door has: outside plate and inner panel; Be filled in described Vacuumed insulation panel and described hard polyurethane fat vacuole foam in the second space that is formed between described outside plate and the described interior case,
In the summation of described the first space and described second space, the filling rate of described Vacuumed insulation panel is 40%～80%.
3. heat insulating box as claimed in claim 1 is characterized in that, the mean coefficient of heat conductivity of described hard polyurethane fat vacuole foam is 0.018W/mK～0.025W/mK, and the thermal conductivity factor of described Vacuumed insulation panel is 0.0030W/mK～0.0012W/mK.
4. heat insulating box as claimed in claim 2 is characterized in that, the mean coefficient of heat conductivity of described hard polyurethane fat vacuole foam is 0.018W/mK～0.025W/mK, and the thermal conductivity factor of described Vacuumed insulation panel is 0.0030W/mK～0.0012W/mK.
5. heat insulating box as claimed in claim 1 is characterized in that, described Vacuumed insulation panel is separated the configuration of predetermined distance ground from described outer container and described interior case, and described Vacuumed insulation panel is embedded in the described hard polyurethane fat vacuole foam.
6. heat insulating box as claimed in claim 1 is characterized in that,
On a side of described outer container, form the inlet that at least one is used for the stoste of described hard polyurethane fat vacuole foam is injected described the first space,
On a side of the described outer container that is formed with this inlet, a plurality of described Vacuumed insulation panels relatively are set up in parallel,
On in these Vacuumed insulation panels at least one, be formed with otch at least one bight,
Described inlet and described otch relatively form.
7. heat insulating box as claimed in claim 1 is characterized in that, in the left and right sides face and back part of described outer container, the ratio of the area that the described Vacuumed insulation panel on each face is shared is all above 70%.
8. heat insulating box as claimed in claim 1 is characterized in that, has used foam free density to be 35kg/m 3Above and be 60kg/m for the preferred package amount of described heat insulating box 3Above hard polyurethane fat vacuole foam.
9. refrigerator is characterized in that having:
Each described heat insulating box in the claim 1～8; And
Cooling device, described cooling device cools off the air that supplies to the storeroom that is formed at described heat insulating box.
10. hot water storage device is characterized in that having:
Each described heat insulating box in the claim 1～8;
The heater that water is heated; And
Water tank, described water tank is arranged in the described heat insulating box, and storage is by the warmed-up water of described heater.
CN2013201392612U 2012-03-26 2013-03-26 Heat insulation box body, refrigerator with heat insulation box body and hot water storage device with heat insulation box body Withdrawn - After Issue CN203249460U (en)

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JP2012069129 2012-03-26

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AU (1) AU2013238222B2 (en)
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AU2013238222A1 (en) 2014-11-06
TWI524041B (en) 2016-03-01
TW201411074A (en) 2014-03-16
JPWO2013146286A1 (en) 2015-12-10
SG11201405375UA (en) 2014-11-27
CN103363764B (en) 2016-07-06
AU2013238222B2 (en) 2016-10-06
CN103363764A (en) 2013-10-23
HK1187977A1 (en) 2014-04-17
JP6192634B2 (en) 2017-09-06

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