JP2008051402A - Refrigerator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To secure an internal storage space by holding down the influence of thickness due to a partition to the minimum when first and second cooling devices are concentrated in one portion. <P>SOLUTION: In the refrigerator body 1a having a refrigerating compartment 3 and a freezing compartment 9, the first cooling device 13 for the refrigerating compartment for cooling the refrigerating compartment 3 and the second cooling device 15 for cooling the freezing compartment 9 are disposed opposite to each other so that one is located on the internal storage side, and the other is located on the refrigerator body rear wall panel 27 side with the partition 19 interposed between them. The partition 19 partitioning between the first cooling device 13 and the second cooling device 15 disposed opposite to each other is made of heat insulating material having a thermal conductivity lower than that of resting air, and reliable heat insulating action is secured by thin heat insulating material. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a refrigerator provided with a refrigerator for a refrigerator compartment and a refrigerator for a freezer compartment.

  Refrigeration for the purpose of improving the temperature control accuracy by bringing the cold air temperature close to the set temperature of each storage room, reducing power consumption by improving the efficiency of the refrigeration cycle, and maintaining high humidity in the refrigeration temperature zone by devising the defrost cycle A refrigeration cooler that cools a storage space and a refrigerated storage space exclusively and a refrigerator that includes a refrigeration cooler have been put into practical use.

The refrigerator for refrigeration mainly cools the refrigerator compartment, and is disposed after the interior of the refrigerator compartment. The refrigeration cooler is arranged after the vegetable compartment is cooled at the same time by the cold air that has cooled the freezer compartment, and is disposed behind the freezer compartment.
Japanese Patent Application No. 2005-345065

  After the refrigerator for the refrigerator compartment is located in the interior of the refrigerator compartment, the cooler for the freezer compartment is disposed after the interior of the refrigerator compartment, so that the space where the cooler is arranged, The space inside the cabinet is inevitably restricted by the depth.

  In this case, a means for consolidating the coolers in one place can be considered. However, the inner part of the warehouse in which the cooler is moved can be widened because the cooler disappears, but the depth of the interior space can be increased. The inner part has a new problem that is greatly restricted by the arrangement of two coolers.

  In addition, because the freezer cooler must be kept at a lower temperature than the refrigerator cooler, the partition walls that partition each cooler are thick and have a reliable heat insulation structure. The space inside the cabinet is subject to even greater restrictions.

  Therefore, in the present invention, to provide a refrigerator that minimizes the influence of the thickness due to the partition wall when the coolers are arranged in one place, and can secure a large space in the cabinet as much as possible. It is an object.

  In order to achieve the above object, according to the present invention, first, a refrigerator main body having a refrigerator compartment and a freezer compartment is provided with a first refrigerator and a freezer compartment for cooling the refrigerator compartment. The first cooler and the second cooler are arranged opposite to each other so that the second cooler to be cooled is on the inside of the cabinet and the other is on the rear wall panel side of the refrigerator body with the partition wall in between. The partition wall is made of a heat insulating material having a thermal conductivity lower than that of still air.

  Secondly, the refrigerator main body is provided with a cooling device for cooling the refrigerator compartment, the vegetable compartment, and the freezer compartment, respectively, and the cooling device is provided with an internal partition wall and a passage wall surface that form the inner wall surface excluding the refrigerator compartment. Formed between the passage partition wall and the refrigerator main body rear panel, and at least a first cool air passage formed with at least a first fan and a first cooler. And a second cool air passage in which a second cooler facing the first cooler is disposed across the fan partition wall and the passage partition wall. Any one of the partition walls is made of a heat insulating material having a thermal conductivity lower than that of still air.

  According to the present invention, the partition wall that partitions the first cooler and the second cooler that are arranged opposite to each other is used by using a heat insulating material having a thermal conductivity lower than that of still air. Thin insulation can be made.

  Therefore, by using a thin heat insulating material, it is possible to widely use the interior space corresponding to the depth. Moreover, although it is a thin heat insulating material, it comes to work reliably as a partition wall for partitioning into a refrigeration temperature zone having a low temperature and a refrigeration temperature zone, and maintains a low refrigeration temperature zone.

  In the present invention, a heat insulating material having a thermal conductivity lower than that of the still air is made of a vacuum heat insulating material so that a sufficient heat insulating action can be obtained with a thin heat insulating material.

  In this case, it is desirable that the core material of the heat insulating material is made of a fine powder combination having good moldability or a foamed foam made of fine cells.

  In addition, the gas barrier container of the heat insulating material is desirably surface-treated with a resin film or metal foil having a high water vapor barrier property in order to prevent deterioration due to surface condensation and icing.

  Moreover, when making a heat insulating material, it is desirable to employ | adopt as a structure the unit made beforehand in the shape along the partition wall in a store | warehouse | chamber or the passage partition wall from the surface of an assembly property.

  Hereinafter, embodiments of the present invention will be specifically described with reference to FIGS. 1 to 4.

  FIG. 1: has shown the general | schematic cutting | disconnection side view of the whole refrigerator concerning this invention.

  The refrigerator 1 is arranged in the order of the refrigerator compartment 3, the ice making room 5, the vegetable compartment 7, and the freezer compartment 9 from the upper side of the refrigerator body 1 a and is made in an independent cabinet.

  The refrigerator compartment 3 is a door hinge type in which food and the like can be taken in and out by opening the front door 11. The ice making room 5, the vegetable room 7, and the freezing room 9 are of a drawer type in which food and the like can be taken in and out by pulling out the doors 5a, 7a, 9a.

  On the other hand, after going into the interior of the vegetable compartment 7, the first cooler 13 and the second cooler 15 that are cooling devices are arranged together. The first cooler 13 is a refrigerator for the refrigerator compartment, and the second cooler 15 is a refrigerator for the freezer compartment, and has an integral unit structure as shown in FIG.

  More specifically, the first cooler 13 is a first cool air passage formed by an internal partition wall 17 that forms the inner wall surface of the vegetable compartment 7 and a passage partition wall 19 that forms the passage wall surface. 21. The first cool air passage 21 is provided with a first fan 23 serving as a refrigeration fan and a passage damper (not shown) in addition to the first cooler 13.

  Therefore, when the passage damper is open, the cold air heat-exchanged by the first cooler 13 by the operation of the first fan 23 is blown out to the refrigerating room 3 and then passes through the vegetable room 7 and again from the return port 25. The environment returning to the first cooler 13 is repeated.

  The second cooler 15 is disposed oppositely in a second cool air passage 29 formed between the passage partition wall 19 and the refrigerator main body rear wall panel 27 with the passage partition wall 19 interposed therebetween.

  The first and second coolers 13 and 15 communicate with a compressor 30, a condenser and a throttling device (both not shown) through a refrigerant pipe, and the refrigerant discharged from the compressor 30 is condensed. The refrigeration cycle is configured to return to the compressor 30 through the compressor, the expansion device, and the first and second coolers 13 and 15.

  The second cool air passage 29 is provided with a second fan 31 serving as a refrigeration fan and a passage damper (not shown) in addition to the second cooler 15.

  Therefore, when the passage damper is open, the cold air heat-exchanged by the second cooler 15 by the operation of the second fan 31 passes through the ice making chamber 5 and the freezer compartment 9 through the communication passage port 33 and returns. The circulation returning from the port 35 to the second cooler 15 is repeated.

  On the other hand, as described above, the first cold air passage 21 and the second cold air passage 29 are formed in an integral unit structure as shown in FIG. Either one is made of a heat insulating material having a thermal conductivity lower than that of still air (0.023 W / mK) at 0 ° C. In this case, both of them may be used.

  As the heat insulating material, a vacuum heat insulating material 39 is used in this embodiment as shown in FIG.

  As the core material 41 of the vacuum heat insulating material 39, a fine plastic foam plastic home (communication foam), inorganic fine powder, or fiber is used.

  As the gas barrier container 43 of the vacuum heat insulating material 39, means made of aluminum foil (plastic with a deposited film) / plastic laminate film and vacuum packed by a heat seal 45 is used.

  In the continuous foam used as the core material 41 of the vacuum heat insulating material 39, the thermal conductivity of the central portion of the vacuum heat insulating material is limited to about 0.005 to 0.006 W / mK, but the fiber diameter is extremely fine with a diameter of several μm or less. Since the vacuum heat insulating material having the glass wool as a core material can realize a low thermal conductivity of 0.02 W / mK or less, it is suitable for the object of the present invention.

  As a result, the thickness of the conventional heat insulating material required about 35 mm, but in the present invention, a heat insulating function similar to the conventional one can be obtained with an average of 20 mm.

  Further, in the case of a heat insulating material including a vacuum heat insulating material and having a low thermal conductivity, a resin film having a high water vapor barrier property and a laminate of metal foil / resin is formed on the surface of the gas barrier container 43 in contact with cold air as shown in FIG. It is desirable to close-form a film or the like and to treat the surface to prevent deterioration due to moisture absorption due to dew condensation or icing. In addition, the wall partition wall 17 and the passage partition wall 19 are not formed by combining the vacuum heat insulating material 39, but the wall partition wall 17 and the passage partition wall 19 are integrally formed in advance using a core material such as microtherm (trade name). It is desirable to do.

  According to the refrigerator 1 configured as described above, since the first and second coolers 13 and 15 are arranged together behind the vegetable compartment 7, the internal space of the refrigerator compartment 3, particularly the depth can be widely used. it can.

  Moreover, although the vegetable compartment 7 comes to arrange | position the 1st, 2nd coolers 13 and 15 together, since it becomes a unit structure, it is excellent in an assembly property, and the wall surface partition wall 17 or a channel | path In addition to the fact that the thickness of the partition wall 19 can be reduced as compared with the conventional case, the second cold air passage 29 having the unit structure, together with the means using the refrigerator main body rear wall panel 27, reduces the occupied space d of the unit structure. It becomes possible to keep it small, and it becomes possible to use a wide space in the cabinet that is the depth of the vegetable room 7 accordingly.

The outline cut side view of the refrigerator concerning the present invention. The outline cutting explanatory drawing which provided the 1st and 2nd cooler which constitutes a cooling device in each cold air passage, and made it a unit structure. Outline | summary cutting explanatory drawing of a vacuum heat insulating material. Outline | summary cutting explanatory drawing of the vacuum heat insulating material of another embodiment surface-treated.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1a Refrigerator main body 3 Refrigerated room 7 Vegetable room 9 Freezer room 13 1st cooler 15 2nd cooler 17 Wall partition wall 19 Path partition wall 21 1st cold air path 23 1st fan 29 2nd cold air path 31 Second fan

Claims (6)

  A refrigerator main body having a refrigerator compartment and a freezer compartment, with a first cooler for the refrigerator compartment that cools the refrigerator compartment and a second cooler that cools the freezer compartment, with one partition inside, The other is arranged opposite to the rear wall panel side of the refrigerator body, and the partition wall that partitions the first cooler and the second cooler is made of a heat insulating material having a thermal conductivity lower than that of still air. A refrigerator characterized by making. The refrigerator body is equipped with a cooling device that cools the refrigerator compartment, vegetable compartment, and freezer compartment,
The cooling device is formed by an internal partition wall that forms the inner wall surface except the refrigerator compartment and a passage partition wall that forms the passage wall surface, and at least the first fan and the first cooler are disposed. The second cooling formed between the first cold air passage, the passage partition wall and the refrigerator main body rear panel and facing the first cooler across at least the second fan and the passage partition wall. A unit structure comprising a second cool air passage in which a vessel is disposed, and either one of the internal partition wall and the passage partition wall is made of a heat insulating material having a thermal conductivity lower than that of still air. A refrigerator characterized by that.   The refrigerator according to claim 1 or 2, wherein the heat insulating material having a heat conductivity lower than that of the still air is made of a vacuum heat insulating material.   The core material of the heat insulating material having a thermal conductivity lower than the thermal conductivity of the static air is made of a foamed foam made of a fine powder combination or fine cells. refrigerator.   The refrigerator according to claim 1 or 2, wherein a gas barrier container of a heat insulating material having a thermal conductivity lower than that of still air is surface-treated with a resin film or a metal foil having a high water vapor barrier property.   The refrigerator according to claim 1 or 2, wherein the heat insulating material having a thermal conductivity lower than that of the still air is made in advance in a shape along the internal partition wall or the passage partition wall.

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