EP2789947B1 - Refrigerator - Google Patents
Refrigerator Download PDFInfo
- Publication number
- EP2789947B1 EP2789947B1 EP12854870.8A EP12854870A EP2789947B1 EP 2789947 B1 EP2789947 B1 EP 2789947B1 EP 12854870 A EP12854870 A EP 12854870A EP 2789947 B1 EP2789947 B1 EP 2789947B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- door
- insulating material
- vacuum heat
- refrigerator
- heat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Not-in-force
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D23/00—General constructional features
- F25D23/02—Doors; Covers
- F25D23/028—Details
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2201/00—Insulation
- F25D2201/10—Insulation with respect to heat
- F25D2201/14—Insulation with respect to heat using subatmospheric pressure
Definitions
- An embodiment of the present invention relates to a refrigerator.
- a refrigerator has a vacuum heat-insulating material filled between an outer box and an inner box thereof, the outer box and the inner box constituting a heat-insulating case that is a refrigerator body.
- the refrigerator also has a vacuum heat-insulating material filled between an inner plate and an outer plate thereof that constitute a door for opening and closing a front opening portion of the heat-insulating case.
- WO 2011/058678 discloses a refrigerator provided with a refrigerator main body which is open at the front face and has a storage chamber on the inside, and a door for closing the front face opening of the refrigerator main body, wherein the door is provided with a door surface element disposed on the outside of the refrigerator, an indoor plate disposed on the inside of the refrigerator, and the heat insulation portion which is sandwiched between the door surface element and the indoor plate and which is provided with a vacuum heat insulation panel and a foam insulation; and a reinforcing plate which is in contact with a door surface element is disposed between the door surface element and the vacuum heat insulation panel.
- JP 2004 340194 describes a vacuum heat insulating material and a refrigerator using such material.
- An aerogel is formed by immersing a fiber structure in an aerogel precursor and subjecting the product to an ultra-critical drying process, and a vacuum heat insulating material is formed by accommodating a composite consisting of the aerogel and the fiber structure as a core material in an armouring of non-aeration nature, followed by evacuation.
- This vacuum heat insulating material is installed in the gap between the outer box and the inner box of the refrigerator body and/or in the gap between a door exterior material and a door interior material.
- FR 1083712 describes a refrigerator utilizing a heat insulating material between an outer surface and an inner surface of the refrigerator body.
- a conventional refrigerator does not have a vacuum heat-insulating material disposed in the vicinity of an end of the door, that faces the front end (close to the door) of a side wall portion of the heat-insulating case, since there are provided a gasket and the like. Therefore, heat insulation in the vicinity of the end of the door is lost, thereby having a problem that the effect of heat insulation as the entire refrigerator goes down and water condensation occurs in the vicinity of the end of the door.
- the present invention has an object to provide a refrigerator capable of enhancing heat insulation performance in the vicinity of the end of the door which is for opening and closing the front opening portion of the heat-insulating case.
- a refrigerator including: a refrigerator body configured as a heat-insulating case by putting a vacuum heat-insulating material between an inner box and an outer box thereof; and a door for opening and closing a front opening portion of the heat-insulating case, wherein the door has a vacuum heat-insulating material put between an inner plate and an outer plate thereof, and wherein an end of the vacuum heat-insulating material of the door, which is positioned at a side of a side wall of the heat-insulating case, extends an outer side with respect to an inner plate surface of the side wall.
- FIG. 1 is a perspective view showing the whole structure of a refrigerator according to the embodiment of the present invention.
- a refrigerator 1 includes a heat-insulating case 3 comprised of an inner box and an outer box with a vacuum heat-insulating material put therebetween.
- the heat-insulating case 3 includes a top plate portion 5 that constitutes a top wall thereof as the ceiling, a bottom plate portion 7 that constitutes a bottom wall thereof, a left plate portion 9 that constitutes a left sidewall thereof, a right plate portion 11 that constitutes a right sidewall thereof, and a back plate portion 13 that constitutes a back wall thereof.
- the right plate portion 11, the back plate portion 13, and the bottom plate portion 7 are kept out of sight in FIG. 1 .
- refrigerated-room hinged-double-doors 15 and 15 there are mounted refrigerated-room hinged-double-doors 15 and 15, a crisper drawer door 17, an ice-making-room drawer door 19, a first freezer drawer door 21, and a second freezer drawer door 23 on the side of a front opening portion of the heat-insulating case 3 which is surrounded by the top plate portion 5, the bottom plate portion 7, the left plate portion 9, the right plate portion 11, and the back plate portion 13. It is noted that the second freezer door 23 is aligned with the ice-making-room door 19 side by side.
- a refrigerated room, a crisper, a ice-making room, a first freezer, and a second freezer within the heat-insulating case 3, which are respectively closed by the refrigerated-room doors 15 and 15, the crisper door 17, the ice-making-room door 19, the first freezer drawer door 21, and the second freezer drawer door 23.
- FIG. 2 is a cross-sectional view of the refrigerator 1 shown in FIG. 1 . To be concrete, it is a cross-sectional view, for example, made by horizontally cutting the middle of the first freezer door 21 of the refrigerator 1 in FIG. 1 .
- the heat-insulating case 3 of the refrigerator 1 is formed in an almost U-shape surrounded by the left plate portion 9, the right plate portion 11, and the back plate portion 13.
- the first freezer door 21 is mounted on the front opening portion of the heat-insulating case 3.
- FIG. 3 is an enlarged sectional view showing a detailed inner structure of a corner where a front end of the left plate portion 9 abuts on a left end of the first freezer door 21, which is within a circle A of a dotted line in the cross-sectional view of the refrigerator 1 shown in FIG. 2 .
- the first freezer door 21 includes a vacuum heat-insulating material 35 fitted between a door outer plate 31 and a door inner plate 33 thereof.
- the vacuum heat-insulating material 35 usually has an excess part of a film, such as a laminate film, that surrounds a core material thereof. As shown in FIG. 3 , the excess part of the film is folded while formed as an ear part, such that the ear part adheres to the vacuum heat-insulating material 35. Thereby, the end part of the vacuum heat-insulating material 35 is formed in an almost square. Specifically, while the excess part of the film is formed as an ear part, the ear part is folded from a position of the end of the vacuum heat-insulating material 35 toward the side of the door inner plate 33, and thereby the ear part adheres to the vacuum heat-insulating material 35. That is, as shown in FIG.
- the ear part adheres to the vacuum heat insulating material 35 located on the side which a gasket 41 is mounted, thereby enabling to reinforce an adhering surface part of the vacuum heat-insulating material 35. It is noted that the folded portion is firmly kept hermetically-sealed by an inner binding material.
- the left plate portion 9, which constitutes a side wall of the refrigerator 1, includes a vacuum heat-insulating material 95 fitted between a left outer plate 91 and a left inner plate 93 thereof.
- the gasket 41 On an inner surface of the first freezer door 21, the gasket 41 is mounted in the vicinity of the left end of the first freezer door 21.
- a throat portion 43 In front of the gasket 41, that is, on the right side of the gasket 41 in FIG. 3 , there is provided a throat portion 43 as a protruding portion that is bent obliquely and protrudes widely toward an inner side of the first freezer.
- An expanded heat-insulating material 37 is filled within the throat portion 43.
- the throat portion 43 works as a cold air leak prevention portion that closes an escape route of cold air, thereby further enhancing freezing efficiency.
- the gasket 41 includes a magnet 45 mounted on an end thereof, the end abutting on the front end of the left plate portion 9.
- the magnet 45 makes the vicinity of the left end of the first freezer door 21 magnetized to the front end of the left plate portion 9.
- a gasket mounting portion 49 is provided between the air cushion portion 47 and the door inner plate 33 of the first freezer door 21.
- An insertion portion 51 which is in an arrowhead shape and extends from the air cushion portion 47, is inserted into the gasket mounting portion 49.
- the gasket mounting portion 49 may be provided with the door inner plate 33 as one body.
- the gasket mounting portion 49 may be formed as an extension of the door inner plate 33.
- Fin portions 53 and 55 are mounted between the gasket mounting portion 49 and the air cushion portion 47 and on both sides of the gasket mounting portion 49.
- the fin portions 53 and 55 prevent a leak of cold air from the first freezer, thereby suppressing water condensation within the first freezer door 21 due to leaked cold air.
- an ear part formed around the vacuum heat-insulating material 35 of the first freezer door 21 is folded toward the vacuum heat-insulating material 35, and the tip of the folded ear part is positioned at an inner side with respect to the center position of the gasket mounting portion 49 (a side of the right end of the first freezer door 21).
- FIGS. 4 and 5 are views showing respective temperature characteristics according to the present embodiment and a conventional refrigerator at the corner of the first freezer door, which faces the front end of the left plate portion, the temperature characteristics overlapped on respective structures of the corner.
- a sign "a” is a point indicating temperature 22. 6 degrees C
- a sign "b” is a point indicating temperature 16.8 degrees C
- a sign "c” is a point indicating temperature 11.0 degrees C
- a sign “d” is a point indicating temperature 5.2 degrees C
- a sign “e” is a point indicating temperature -0.6 degrees C
- a sign "f” is a point indicating temperature -6.4 degrees C.
- FIGS. 4 and 5 show the same temperature range in graphs where a plurality of points showing the same temperatures with the above-described points are connected as respective lines.
- a temperature characteristic of the conventional refrigerator will be described with reference to FIG. 5 .
- a vacuum heat-insulating material 101 of the first freezer door 21 does not extend to the vicinity of the left end of the first freezer door 21 and is terminated at the throat portion which is positioned before the left end of the first freezer door 21. Therefore, in the temperature range of the conventional refrigerator, a temperature range for water condensation, which is between the temperature 22.6 degrees C indicated by the sign "a" and the temperature 16.8 degrees C indicated by the sign "b", resides in the corner where a vacuum heat-insulating material does not exist, thereby having a possibility of water condensation at the corner.
- the vacuum heat-insulating material 35 of the first freezer door 21 extends to the vicinity of the left end of the first freezer door 21 so as to overlap a tip of the vacuum heat-insulating material 95 of the left plate portion 9, the tip extending toward the first freezer door 21, when viewed from the door outer plate 31 in FIG. 3 . Therefore, in the temperature range of the refrigerator according to the present embodiment, the temperature range for water condensation, which is between the temperature 22.6 degrees C indicated by the sign "a" and the temperature 16.8 degrees C indicated by the sign "b", resides in the corner where the vacuum heat-insulating material 35 of the first freezer door 21 exists. Thus, the temperature range for water condensation at the corner lies within the vacuum heat-insulating material 35. That is, the temperature range for water condensation is closed within the vacuum heat-insulating material 35, thereby having no possibility of water condensation at the corner.
- the vacuum heat-insulating material 35 of the first freezer door 21 is put between the door outer plate 31 and the door inner plate 33 and extends to the vicinity of the left end of the first freezer door 21.
- the vacuum heat-insulating material 35 extends over the tip, which extends toward the first freezer door 21, of the vacuum heat-insulating material 95 of the left plate portion 9, so as to overlap the tip when viewed from the door outer plate 31 in FIG. 3 .
- the sentence “extend over the tip, which extends toward the first freezer door 21, of the vacuum heat-insulating material 95 of the left plate portion 9 so as to overlap the tip when viewed from the door outer plate 31 in FIG. 3 " means that "the vacuum heat-insulating material 35 of the first freezer door 21 has its left end extending to an outer side (a side of the left end of the first freezer door 21) with respect to the center position of the gasket mounting portion 49 of the gasket 41 for example by 3 mm or more". Thereby, it is possible to enhance the heat insulation performance and prevent the occurrence of water condensation in the vicinity of the left end of the first freezer door 21.
- the expanded heat-insulating material 37 expanded polystyrene or the like
- the left end of the first freezer door 21 of the vacuum heat-insulating material 35 extending to the outer side with respect to the center position of the gasket mounting portion 49 (the side of the left end of the first freezer door 21), it is possible to increase the coverage of the vacuum heat-insulating material with respect to the size of a front view, that is the size viewed from the front of the heat-insulating case 3. Therefore, it is possible to enhance the heat insulation performance at the corner of the first freezer door 21 which opposes to the front end of the left plate portion 9. As a result, it is possible to enhance the heat insulation performance of the refrigerator 1 and prevent water condensation.
- the present embodiment describes the structure of the corner of the first freezer door 21 which opposes to the front end of the left plate portion 9.
- the corners of the refrigerator doors 15 and 15, the crisper door 17, the ice-making room door 19, the second freezer door 23, which oppose to the front end of the left plate portion 9, and the corners of the refrigerator doors 15 and 15, the crisper door 17, the ice-making room door 19, the second freezer door 23, which oppose to the front end of the right plate portion 11, also have a similar structure.
- the refrigerator 1 has the top plate portion 5, the bottom plate portion 7, the left plate portion 9, the right plate portion 11, and the back plate portion 13 provided separately. These plates are joined together to constitute the heat-insulating case 3 of the refrigerator 1. That is, a plurality of outer box plate members which constitutes the outer box of the heat-insulating case 3 is provided separately. However, the present embodiment is not limited to this. The plurality of outer box plate members may be provided as one body to form the outer box as one plate. Similarly, a plurality of inner box plate members which constitutes the inner box of the heat-insulating case 3 is provided separately. However, the present embodiment is not limited to this. The plurality of inner box plate members may be provided as one body to form the inner box as one plate.
Description
- An embodiment of the present invention relates to a refrigerator.
- In order to enhance heat insulation performance and save energy, a refrigerator has a vacuum heat-insulating material filled between an outer box and an inner box thereof, the outer box and the inner box constituting a heat-insulating case that is a refrigerator body. The refrigerator also has a vacuum heat-insulating material filled between an inner plate and an outer plate thereof that constitute a door for opening and closing a front opening portion of the heat-insulating case. According to the preamble of claim 1,
WO 2011/058678 discloses a refrigerator provided with a refrigerator main body which is open at the front face and has a storage chamber on the inside, and a door for closing the front face opening of the refrigerator main body, wherein the door is provided with a door surface element disposed on the outside of the refrigerator, an indoor plate disposed on the inside of the refrigerator, and the heat insulation portion which is sandwiched between the door surface element and the indoor plate and which is provided with a vacuum heat insulation panel and a foam insulation; and a reinforcing plate which is in contact with a door surface element is disposed between the door surface element and the vacuum heat insulation panel.JP 2004 340194 -
FR 1083712 - However, a conventional refrigerator does not have a vacuum heat-insulating material disposed in the vicinity of an end of the door, that faces the front end (close to the door) of a side wall portion of the heat-insulating case, since there are provided a gasket and the like. Therefore,
heat insulation in the vicinity of the end of the door is lost, thereby having a problem that the effect of heat insulation as the entire refrigerator goes down and water condensation occurs in the vicinity of the end of the door. - The present invention has an object to provide a refrigerator capable of enhancing heat insulation performance in the vicinity of the end of the door which is for opening and closing the front opening portion of the heat-insulating case.
- According to an aspect of the present invention, there is provided a refrigerator including: a refrigerator body configured as a heat-insulating case by putting a vacuum heat-insulating material between an inner box and an outer box thereof; and a door for opening and closing a front opening portion of the heat-insulating case, wherein the door has a vacuum heat-insulating material put between an inner plate and an outer plate thereof, and wherein an end of the vacuum heat-insulating material of the door, which is positioned at a side of a side wall of the heat-insulating case, extends an outer side with respect to an inner plate surface of the side wall.
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- [
FIG. 1 ]
FIG. 1 is a perspective view showing the whole structure of a refrigerator according to an embodiment of the present invention. - [
FIG. 2 ]
FIG. 2 is a cross-sectional view of the refrigerator shown inFIG. 1 . - [
FIG. 3 ]
FIG. 3 is an enlarged sectional view showing a detailed inner structure of a corner that is within a circle A of a dotted line in the cross-sectional view of the refrigerator shown inFIG. 2 . - [
FIG. 4 ]
FIG. 4 is a view showing a temperature characteristic at a corner of a first freezer door, which faces a front end of a left plate portion, the temperature characteristic overlapped on the structure of the corner according to the embodiment of the present invention. - [
FIG. 5 ]
FIG. 5 is a view showing a temperature characteristic at a corner of a first freezer door, which faces a front end of a left plate portion, the temperature characteristic overlapped on the structure of the corner according to a conventional refrigerator. - An exemplary embodiment of the present invention (hereinafter referred to as an embodiment) will be described with reference to the drawings.
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FIG. 1 is a perspective view showing the whole structure of a refrigerator according to the embodiment of the present invention. As shown inFIG. 1 , a refrigerator 1 includes a heat-insulatingcase 3 comprised of an inner box and an outer box with a vacuum heat-insulating material put therebetween. The heat-insulatingcase 3 includes atop plate portion 5 that constitutes a top wall thereof as the ceiling, abottom plate portion 7 that constitutes a bottom wall thereof, aleft plate portion 9 that constitutes a left sidewall thereof, aright plate portion 11 that constitutes a right sidewall thereof, and aback plate portion 13 that constitutes a back wall thereof. - It is noted that the
right plate portion 11, theback plate portion 13, and thebottom plate portion 7 are kept out of sight inFIG. 1 . Moreover, when a general term is given to thetop plate portion 5, thebottom plate portion 7, theleft plate portion 9, theright plate portion 11, and theback plate portion 13, they are referred to merely as a plate portion. - Moreover, there are mounted refrigerated-room hinged-double-
doors crisper drawer door 17, an ice-making-room drawer door 19, a firstfreezer drawer door 21, and a secondfreezer drawer door 23 on the side of a front opening portion of the heat-insulatingcase 3 which is surrounded by thetop plate portion 5, thebottom plate portion 7, theleft plate portion 9, theright plate portion 11, and theback plate portion 13. It is noted that thesecond freezer door 23 is aligned with the ice-making-room door 19 side by side. It is noted that there are provided a refrigerated room, a crisper, a ice-making room, a first freezer, and a second freezer within the heat-insulatingcase 3, which are respectively closed by the refrigerated-room doors crisper door 17, the ice-making-room door 19, the firstfreezer drawer door 21, and the secondfreezer drawer door 23. -
FIG. 2 is a cross-sectional view of the refrigerator 1 shown inFIG. 1 . To be concrete, it is a cross-sectional view, for example, made by horizontally cutting the middle of thefirst freezer door 21 of the refrigerator 1 inFIG. 1 . As shown inFIG. 2 , the heat-insulatingcase 3 of the refrigerator 1 is formed in an almost U-shape surrounded by theleft plate portion 9, theright plate portion 11, and theback plate portion 13. Thefirst freezer door 21 is mounted on the front opening portion of the heat-insulatingcase 3. -
FIG. 3 is an enlarged sectional view showing a detailed inner structure of a corner where a front end of theleft plate portion 9 abuts on a left end of thefirst freezer door 21, which is within a circle A of a dotted line in the cross-sectional view of the refrigerator 1 shown inFIG. 2 . As shown inFIG. 3 , thefirst freezer door 21 includes a vacuum heat-insulatingmaterial 35 fitted between a doorouter plate 31 and a doorinner plate 33 thereof. - For manufacture reasons, the vacuum heat-insulating
material 35 usually has an excess part of a film, such as a laminate film, that surrounds a core material thereof. As shown inFIG. 3 , the excess part of the film is folded while formed as an ear part, such that the ear part adheres to the vacuum heat-insulatingmaterial 35. Thereby, the end part of the vacuum heat-insulatingmaterial 35 is formed in an almost square. Specifically, while the excess part of the film is formed as an ear part, the ear part is folded from a position of the end of the vacuum heat-insulatingmaterial 35 toward the side of the doorinner plate 33, and thereby the ear part adheres to the vacuum heat-insulatingmaterial 35. That is, as shown inFIG. 3 , the ear part adheres to the vacuumheat insulating material 35 located on the side which agasket 41 is mounted, thereby enabling to reinforce an adhering surface part of the vacuum heat-insulatingmaterial 35. It is noted that the folded portion is firmly kept hermetically-sealed by an inner binding material. - Similarly, the
left plate portion 9, which constitutes a side wall of the refrigerator 1, includes a vacuum heat-insulatingmaterial 95 fitted between a leftouter plate 91 and a leftinner plate 93 thereof. - On an inner surface of the
first freezer door 21, thegasket 41 is mounted in the vicinity of the left end of thefirst freezer door 21. In front of thegasket 41, that is, on the right side of thegasket 41 inFIG. 3 , there is provided athroat portion 43 as a protruding portion that is bent obliquely and protrudes widely toward an inner side of the first freezer. An expanded heat-insulatingmaterial 37 is filled within thethroat portion 43. Thethroat portion 43 works as a cold air leak prevention portion that closes an escape route of cold air, thereby further enhancing freezing efficiency. - The
gasket 41 includes amagnet 45 mounted on an end thereof, the end abutting on the front end of theleft plate portion 9. Themagnet 45 makes the vicinity of the left end of thefirst freezer door 21 magnetized to the front end of theleft plate portion 9. There is provided anair cushion portion 47 inside of themagnet 45. Theair cushion portion 47 absorbs an impact against theleft plate portion 9 when thefirst freezer door 21 is closed. - A
gasket mounting portion 49 is provided between theair cushion portion 47 and the doorinner plate 33 of thefirst freezer door 21. Aninsertion portion 51, which is in an arrowhead shape and extends from theair cushion portion 47, is inserted into thegasket mounting portion 49. It is noted that thegasket mounting portion 49 may be provided with the doorinner plate 33 as one body. For example, thegasket mounting portion 49 may be formed as an extension of the doorinner plate 33. -
Fin portions gasket mounting portion 49 and theair cushion portion 47 and on both sides of thegasket mounting portion 49. Thefin portions first freezer door 21 due to leaked cold air. - It is noted that an ear part formed around the vacuum heat-insulating
material 35 of thefirst freezer door 21 is folded toward the vacuum heat-insulatingmaterial 35, and the tip of the folded ear part is positioned at an inner side with respect to the center position of the gasket mounting portion 49 (a side of the right end of the first freezer door 21). -
FIGS. 4 and 5 are views showing respective temperature characteristics according to the present embodiment and a conventional refrigerator at the corner of the first freezer door, which faces the front end of the left plate portion, the temperature characteristics overlapped on respective structures of the corner. It is noted that inFIGS. 4 and 5 , a sign "a" is a point indicating temperature 22. 6 degrees C, a sign "b" is a point indicating temperature 16.8 degrees C, a sign "c" is a point indicating temperature 11.0 degrees C, a sign "d" is a point indicating temperature 5.2 degrees C, a sign "e" is a point indicating temperature -0.6 degrees C, and a sign "f" is a point indicating temperature -6.4 degrees C.FIGS. 4 and 5 show the same temperature range in graphs where a plurality of points showing the same temperatures with the above-described points are connected as respective lines. - Firstly, a temperature characteristic of the conventional refrigerator will be described with reference to
FIG. 5 . As shown inFIG. 5 , for the conventional refrigerator, a vacuum heat-insulatingmaterial 101 of thefirst freezer door 21 does not extend to the vicinity of the left end of thefirst freezer door 21 and is terminated at the throat portion which is positioned before the left end of thefirst freezer door 21. Therefore, in the temperature range of the conventional refrigerator, a temperature range for water condensation, which is between the temperature 22.6 degrees C indicated by the sign "a" and the temperature 16.8 degrees C indicated by the sign "b", resides in the corner where a vacuum heat-insulating material does not exist, thereby having a possibility of water condensation at the corner. - Next, a temperature characteristic of the refrigerator according to the present embodiment will be described with reference to
FIG. 4 . As shown inFIG. 4 , in the refrigerator according to the present embodiment, the vacuum heat-insulatingmaterial 35 of thefirst freezer door 21 extends to the vicinity of the left end of thefirst freezer door 21 so as to overlap a tip of the vacuum heat-insulatingmaterial 95 of theleft plate portion 9, the tip extending toward thefirst freezer door 21, when viewed from the doorouter plate 31 inFIG. 3 . Therefore, in the temperature range of the refrigerator according to the present embodiment, the temperature range for water condensation, which is between the temperature 22.6 degrees C indicated by the sign "a" and the temperature 16.8 degrees C indicated by the sign "b", resides in the corner where the vacuum heat-insulatingmaterial 35 of thefirst freezer door 21 exists. Thus, the temperature range for water condensation at the corner lies within the vacuum heat-insulatingmaterial 35. That is, the temperature range for water condensation is closed within the vacuum heat-insulatingmaterial 35, thereby having no possibility of water condensation at the corner. - In the above-configured refrigerator according to the present embodiment, the vacuum heat-insulating
material 35 of thefirst freezer door 21 is put between the doorouter plate 31 and the doorinner plate 33 and extends to the vicinity of the left end of thefirst freezer door 21. The vacuum heat-insulatingmaterial 35 extends over the tip, which extends toward thefirst freezer door 21, of the vacuum heat-insulatingmaterial 95 of theleft plate portion 9, so as to overlap the tip when viewed from the doorouter plate 31 inFIG. 3 . Thereby, it is possible to enhance heat insulation performance in the vicinity of the left end of thefirst freezer door 21 and prevent the occurrence of water condensation in the vicinity of the left end of thefirst freezer door 21 since the temperature range for water condensation is closed within the vacuum heat-insulatingmaterial 35. - It is noted that the sentence "extend over the tip, which extends toward the
first freezer door 21, of the vacuum heat-insulatingmaterial 95 of theleft plate portion 9 so as to overlap the tip when viewed from the doorouter plate 31 inFIG. 3 " means that "the vacuum heat-insulatingmaterial 35 of thefirst freezer door 21 has its left end extending to an outer side (a side of the left end of the first freezer door 21) with respect to the center position of thegasket mounting portion 49 of thegasket 41 for example by 3 mm or more". Thereby, it is possible to enhance the heat insulation performance and prevent the occurrence of water condensation in the vicinity of the left end of thefirst freezer door 21. - Furthermore, in a case of having the expanded heat-insulating material 37 (expanded polystyrene or the like) within the
throat portion 43 which works as a cold air leak prevention portion, it is expected to enhance the heat insulation performance in the vicinity of the left end of thefirst freezer door 21 by making the vacuum heat-insulatingmaterial 35 extending outside of the expanded heat-insulatingmaterial 37 of thethroat portion 43. - Moreover, by making the left end of the
first freezer door 21 of the vacuum heat-insulatingmaterial 35 extending to the outer side with respect to the center position of the gasket mounting portion 49 (the side of the left end of the first freezer door 21), it is possible to increase the coverage of the vacuum heat-insulating material with respect to the size of a front view, that is the size viewed from the front of the heat-insulatingcase 3. Therefore, it is possible to enhance the heat insulation performance at the corner of thefirst freezer door 21 which opposes to the front end of theleft plate portion 9. As a result, it is possible to enhance the heat insulation performance of the refrigerator 1 and prevent water condensation. - It is noted that the present embodiment describes the structure of the corner of the
first freezer door 21 which opposes to the front end of theleft plate portion 9. The corners of therefrigerator doors crisper door 17, the ice-makingroom door 19, thesecond freezer door 23, which oppose to the front end of theleft plate portion 9, and the corners of therefrigerator doors crisper door 17, the ice-makingroom door 19, thesecond freezer door 23, which oppose to the front end of theright plate portion 11, also have a similar structure. - In the present embodiment, the refrigerator 1 has the
top plate portion 5, thebottom plate portion 7, theleft plate portion 9, theright plate portion 11, and theback plate portion 13 provided separately. These plates are joined together to constitute the heat-insulatingcase 3 of the refrigerator 1. That is, a plurality of outer box plate members which constitutes the outer box of the heat-insulatingcase 3 is provided separately. However, the present embodiment is not limited to this. The plurality of outer box plate members may be provided as one body to form the outer box as one plate. Similarly, a plurality of inner box plate members which constitutes the inner box of the heat-insulatingcase 3 is provided separately. However, the present embodiment is not limited to this. The plurality of inner box plate members may be provided as one body to form the inner box as one plate. - Some of embodiments according to the present invention are described, but these embodiments are provided as examples and do not mean to limit the scope of the invention. It is possible to implement these new embodiments as other various embodiments and perform various omissions, replacements, and modifications within the range of the gist of the invention. These embodiments and their modifications are included in the scope and the gist of the invention, and included in the scope of the invention described in claims and its equivalent.
Claims (2)
- A refrigerator (1) comprising:a refrigerator body configured as a heat-insulating case (3) by putting a vacuum heat-insulating material (35) between an inner box and an outer box thereof; anda door (21) for opening and closing a front opening portion of the heat-insulating case (3),wherein the door (21) has a vacuum heat-insulating material (35) put between an inner plate (33) and an outer plate (31) thereof,the vacuum heat insulating material of the door extends to an outer side with respect to the center position of a gasket mounting portion (49) by 3 mm or more, said gasket mounting portion provided for mounting a gasket on an end of the door, and characterized in that:an ear part formed around the vacuum heat insulating material (35) of the door (21) is folded toward the vacuum heat insulating material (35), said ear part is folded toward the side of the door inner plate and thereby adheres to the vacuum heat insulating material, anda tip of the folded ear part is positioned at an inner side with respect to the center position of the gasket mounting portion (49).
- The refrigerator (1) according to claim 1, whereinthe door (21) is provided with a cold air leak prevention portion (43) that extends inside of the refrigerator (1) for preventing cold air from leaking through the door (21), andthe end of the vacuum heat-insulating material (35) of the door (21), which is positioned at the side of the door (21) in front of the side wall (9) of the heat-insulating case (3), extends further away from the center of the door (21) than does the cold air leak prevention portion (43).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2011267139A JP5851223B2 (en) | 2011-12-06 | 2011-12-06 | refrigerator |
PCT/JP2012/081282 WO2013084844A1 (en) | 2011-12-06 | 2012-12-03 | Refrigerator |
Publications (3)
Publication Number | Publication Date |
---|---|
EP2789947A1 EP2789947A1 (en) | 2014-10-15 |
EP2789947A4 EP2789947A4 (en) | 2015-07-29 |
EP2789947B1 true EP2789947B1 (en) | 2017-08-09 |
Family
ID=48574211
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP12854870.8A Not-in-force EP2789947B1 (en) | 2011-12-06 | 2012-12-03 | Refrigerator |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP2789947B1 (en) |
JP (1) | JP5851223B2 (en) |
CN (1) | CN104114965B (en) |
TW (1) | TWI621821B (en) |
WO (1) | WO2013084844A1 (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6105242B2 (en) * | 2012-09-25 | 2017-03-29 | 東芝ライフスタイル株式会社 | refrigerator |
JP6230294B2 (en) * | 2013-06-25 | 2017-11-15 | 東芝ライフスタイル株式会社 | refrigerator |
JP2015031442A (en) * | 2013-08-02 | 2015-02-16 | 日立アプライアンス株式会社 | Cold storage |
JP6517858B2 (en) * | 2017-02-27 | 2019-05-22 | 東芝ライフスタイル株式会社 | refrigerator |
JP6854314B2 (en) * | 2019-04-12 | 2021-04-07 | 東芝ライフスタイル株式会社 | refrigerator |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007240021A (en) * | 2006-03-06 | 2007-09-20 | Matsushita Electric Ind Co Ltd | Folding-type cool box |
Family Cites Families (17)
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FR1083712A (en) * | 1952-07-09 | 1955-01-12 | Thomson Houston Comp Francaise | Improvements to refrigerator cabinets |
JPS56141989U (en) * | 1980-03-26 | 1981-10-27 | ||
JPS5980685U (en) * | 1982-11-24 | 1984-05-31 | 株式会社日立製作所 | refrigerator door structure |
JPS5998287U (en) * | 1982-12-22 | 1984-07-03 | 株式会社日立製作所 | Vacuum insulation fixed structure |
DE9204365U1 (en) * | 1992-03-31 | 1992-07-02 | Liebherr-Hausgeraete Gmbh, 7955 Ochsenhausen, De | |
DE4409091A1 (en) * | 1994-03-17 | 1995-09-21 | Licentia Gmbh | Cooling device with vacuum insulated walls |
US5632543A (en) * | 1995-06-07 | 1997-05-27 | Owens-Corning Fiberglas Technology Inc. | Appliance cabinet construction |
JPH10141583A (en) * | 1996-11-15 | 1998-05-29 | Sanyo Electric Co Ltd | Heat insulating wall body |
JP4238475B2 (en) * | 2000-11-06 | 2009-03-18 | パナソニック株式会社 | refrigerator |
CN1325864C (en) * | 2002-03-13 | 2007-07-11 | 松下冷机株式会社 | Refrigerator |
JP2004340194A (en) * | 2003-05-13 | 2004-12-02 | Toshiba Corp | Vacuum heat insulating material and refrigerator |
JP4603817B2 (en) * | 2004-05-19 | 2010-12-22 | 日立アプライアンス株式会社 | Vacuum heat insulating material, refrigerator using vacuum heat insulating material, and method for manufacturing vacuum heat insulating material |
JP2006084077A (en) * | 2004-09-15 | 2006-03-30 | Hitachi Home & Life Solutions Inc | Vacuum heat insulating material and refrigerator using the same |
JP2007113748A (en) * | 2005-10-24 | 2007-05-10 | Hitachi Appliances Inc | Method of manufacturing heat insulating wall, heat insulating unit, and heat insulating material |
US20110095669A1 (en) * | 2009-10-22 | 2011-04-28 | Moon William T | Refrigerator vacuum insulation application |
JP5513855B2 (en) * | 2009-11-11 | 2014-06-04 | 株式会社東芝 | refrigerator |
JP5337681B2 (en) * | 2009-12-08 | 2013-11-06 | 株式会社東芝 | refrigerator |
-
2011
- 2011-12-06 JP JP2011267139A patent/JP5851223B2/en active Active
-
2012
- 2012-12-03 EP EP12854870.8A patent/EP2789947B1/en not_active Not-in-force
- 2012-12-03 WO PCT/JP2012/081282 patent/WO2013084844A1/en active Application Filing
- 2012-12-03 CN CN201280059905.5A patent/CN104114965B/en active Active
- 2012-12-05 TW TW101145682A patent/TWI621821B/en not_active IP Right Cessation
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007240021A (en) * | 2006-03-06 | 2007-09-20 | Matsushita Electric Ind Co Ltd | Folding-type cool box |
Also Published As
Publication number | Publication date |
---|---|
JP5851223B2 (en) | 2016-02-03 |
TW201341741A (en) | 2013-10-16 |
EP2789947A1 (en) | 2014-10-15 |
JP2013119980A (en) | 2013-06-17 |
CN104114965A (en) | 2014-10-22 |
WO2013084844A1 (en) | 2013-06-13 |
CN104114965B (en) | 2016-10-12 |
EP2789947A4 (en) | 2015-07-29 |
TWI621821B (en) | 2018-04-21 |
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