JP2017180875A - refrigerator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a refrigerator that can prevent condensation on a heat insulating door.SOLUTION: In a refrigerator 1, a storage chamber is opened and closed by a heat insulating door 40 filled with a foam heat insulating material 13. The heat insulating door 40 comprises: a flat plate-shaped front member 41 arranged on a front surface; and a resin cap member 50 covering a peripheral surface. At least a back surface of the front member 41 is covered by a heat transfer part 42 that is a good heat conductor. A connecting member 43 that is a good heat conductor connecting the heat transfer part 42 and the cap member 50 is provided along an inner surface of the cap member 50.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a refrigerator provided with a heat insulating door.

  A conventional refrigerator is disclosed in Patent Document 1. This refrigerator opens and closes the storage room with a heat insulating door filled with foam heat insulating material. The heat insulating door includes a front plate disposed on the front surface, a back plate disposed on the back surface, and a resin cap member that covers the peripheral surfaces of the front plate and the back plate. The foam heat insulating material is filled between the front plate and the back plate, and the vacuum heat insulating material is embedded in the foam heat insulating material. By providing the vacuum heat insulating material, the heat insulating door can be formed thin.

  A concave portion is formed in the cap member on one circumferential surface of the heat insulating door. The heat insulating door is opened by placing the finger inserted into the recess on the gripping portion formed by the front wall of the recess. At this time, since the foamed heat insulating material behind the concave portion becomes thin, it is possible to prevent the condensation on the surface of the rear wall of the concave portion by forming the vacuum heat insulating material extending to the rear of the concave portion.

Japanese Patent Laying-Open No. 2015-52404

  However, according to the conventional refrigerator, the cold heat of the storage chamber is transmitted to the cap member via the foam heat insulating material on the outer peripheral side of the vacuum heat insulating material. For this reason, there existed a possibility that condensation might generate | occur | produce on the cap member which forms the peripheral end surface of a heat insulation door. Similarly, when no vacuum heat insulating material is provided, there is a possibility that condensation occurs on the cap member that forms the peripheral end surface of the heat insulating door.

  An object of this invention is to provide the refrigerator which can prevent dew condensation of a heat insulation door.

  In order to achieve the above object, the refrigerator of the present invention covers a peripheral surface of a flat plate-like front member disposed on the front surface of the refrigerator, wherein the heat insulating door is opened and closed by a heat insulating door filled with foam heat insulating material. A heat-resistant conductor that has a resin cap member, and at least the back surface of the front member is covered with a heat transfer portion of a heat good conductor, and connects the heat transfer portion and the cap member along the inner surface of the cap member. A connecting member is provided.

  Moreover, in the refrigerator having the above-described configuration, the present invention has a grip portion on the peripheral portion where the heat insulating door hangs fingers when opening and closing, and an end surface portion on which the cap member forms a peripheral end surface of the heat insulating door; And a concave portion into which a finger to be hung on the grip portion is inserted, and the connecting member is fixed onto a back wall of the concave portion.

  Moreover, the present invention is characterized in that in the refrigerator configured as described above, the connecting member is fixed to the inner surface of the end surface portion.

  In the refrigerator having the above-described configuration, the cap member has an end surface portion that forms a peripheral end surface of the heat insulating door, and the connecting member is fixed to an inner surface of the end surface portion.

  Moreover, this invention is characterized by the said connection member being formed with a metal foil tape in the refrigerator of the said structure.

  In the refrigerator having the above-described configuration, the front member is formed by fixing a glass plate to the front surface of the heat transfer unit made of a metal plate.

  Further, the present invention is characterized in that the refrigerator having the above-described configuration includes a vacuum heat insulating material embedded in the heat insulating door.

  According to the present invention, the heat transfer portion of the good heat conductor covering the back surface of the front member of the heat insulating door and the inner surface of the cap member are connected by the connection member of the good heat conductor. For this reason, the heat in the room is absorbed by the heat transfer section having a large area and is transmitted to the cap member via the connecting member. Thereby, dew condensation of the cap member can be prevented.

The front view which shows the refrigerator of 1st Embodiment of this invention. Side surface sectional drawing which shows the refrigerator of 1st Embodiment of this invention. The perspective view which shows the heat insulation door of the refrigerator of 1st Embodiment of this invention. AA sectional view of FIG. Cross-sectional enlarged view of the front member of the insulated door The front view which shows the heat insulation door of the refrigerator of 2nd Embodiment of this invention. The perspective view which shows the heat insulation door of the refrigerator of 2nd Embodiment of this invention. BB sectional view of FIG.

<First Embodiment>
Embodiments of the present invention will be described below with reference to the drawings. 1 and 2 show a front view and a side sectional view of the refrigerator 1 according to the first embodiment. The refrigerator 1 has a main body 2 that forms each storage chamber by a heat insulating box 3 filled with a foam heat insulating material 13 between an inner box 15 and an outer box 14.

  In the upper part of the main body 2, a refrigerator compartment 4 for storing stored items in a refrigerator is arranged, and the front surface of the refrigerator compartment 4 is opened and closed by a heat-insulating door 4R and a heat insulating door 4L. A freezer compartment 6 for freezing and storing stored items is disposed at the lower part of the main body 2, and the front surface of the freezer compartment 6 is opened and closed by a drawer-type heat insulating door 40 integrated with the storage case 6 d. A storage case 6c is placed on the storage case 6d, and a storage case 6b is placed on the storage case 6c.

  Between the refrigerator compartment 4 and the freezer compartment 6, the vegetable compartment 5 is arranged in the right direction. The vegetable room 5 is maintained at a refrigerating temperature higher than that of the refrigerating room 4 and stores stored items such as vegetables in a refrigerator, and is opened and closed by a drawer-type heat insulating door 5a integrated with a storage case (not shown).

  Further, between the refrigerator compartment 4 and the freezer compartment 6, an ice making room 25 and a freezer compartment 26 are provided adjacent to the left side of the vegetable compartment 5 and maintained at the freezing temperature. The front surface of the ice making chamber 25 is opened and closed by a drawer-type heat insulating door 25a integrated with the ice storage case 25b. The front surface of the freezer compartment 26 is opened and closed by a drawer-type heat insulating door 26a integrated with the storage case 26b.

  The refrigerating room 4 and the vegetable room 5 and the refrigerating room 4 and the ice making room 25 are partitioned by a partition portion 18 formed of a heat insulating wall disposed horizontally. The vegetable compartment 5 and the freezer compartment 6 are partitioned by a partition (not shown) made of a heat insulating wall arranged horizontally. The vegetable compartment 5 and the freezing compartment 26 and the vegetable compartment 5 and the ice making compartment 25 are partitioned by a partition (not shown) made of a heat insulating wall arranged vertically.

  In the front part between the freezer compartment 26 and the freezer compartment 6, a horizontally partitioned partition 36 is provided. A partition portion 35 disposed horizontally is provided at a front portion between the ice making chamber 25 and the freezing chamber 26. The ice making room 25, the freezing room 26 and the freezing room 6 communicate with each other behind the partition portions 35 and 36.

  A machine room 30 is provided in the lower part of the main body 2 behind the heat insulating box 3. A compressor 31 that operates the refrigeration cycle is disposed in the machine room 30.

  Cold air passages 7 and 8 through which cold air flows are provided at the rear of the main body 2. The cold air passage 8 is disposed behind the ice making chamber 25, the freezing chamber 26, and the freezing chamber 6, and is provided with a plurality of discharge ports 8a. A cooler 11 and a blower fan 10 are provided in the cold air passage 8, and a return port 8 b through which the cold air returns from the freezer compartment 6 is provided at the lower end of the cold air passage 8.

  The cold air passage 7 is arranged behind the refrigerator compartment 4 and is provided with a plurality of discharge ports 7a. The cold air passage 7 and the cold air passage 8 communicate with each other via a damper 23. The damper 23 is opened when the refrigerator compartment 4 and the vegetable compartment 5 are cooled. The partition portion 18 is provided with a communication port (not shown) that allows the refrigerator compartment 4 and the vegetable compartment 5 to communicate with each other. A return passage (not shown) connected to the lower portion of the cold air passage 8 is led out to the vegetable compartment 5. Is done.

  3 shows a front view of the heat insulating door 40, and FIG. 4 shows a cross-sectional view taken along the line AA of FIG. A front member 41 is disposed on the front surface of the heat insulating door 40, and a back member 45 is disposed on the rear surface. The peripheral surface of the heat insulating door 40 is covered with a resin cap member 50.

  FIG. 5 shows an enlarged longitudinal sectional view of the front member 41. The front member 41 is formed in a flat plate shape, and a rectangular glass plate 46 is disposed on the front surface. A resin film 44 is fixed to the back surface of the glass plate 46 through an adhesive layer 47. On the resin film 44, the printing which forms the color and pattern of the heat insulation door 40 is performed.

  An aluminum plate 42 is fixed to the back surface of the resin film 44. The aluminum plate 42 is formed so as to cover the entire back surface of the front member 41. The aluminum plate 42 may be arranged in a wide range on the back surface excluding the peripheral portion of the front member 41. The aluminum plate 42 constitutes a heat transfer portion of a good thermal conductor that transfers the heat in the room. The heat transfer portion may be formed of another metal plate or the like, or the heat transfer portion may be formed of a resin film on which a metal film such as aluminum is formed.

  3 and 4, the foam heat insulating material 13 is filled between the front member 41 and the back member 45. A plate-like vacuum heat insulating material 39 is embedded in the foam heat insulating material 13. The vacuum heat insulating material 39 is formed by evacuating the interior of an exterior material containing a core material such as glass wool.

  The cap member 50 is made of a resin molded product that covers the peripheral surfaces of the four sides of the heat insulating door 40, and has an end surface portion 50a, a front wall 50b, and a rear wall 50c. The end surface portion 50 a forms a peripheral end surface parallel to the normal line of the front surface of the heat insulating door 40. The front wall 50b protrudes in the inner circumferential direction from the front portion of the end surface portion 50a and supports the back surface of the front member 41. The rear wall 50 c is bent from the rear end of the end surface portion 50 a and attached to the back member 45.

  On the aluminum plate 42, an aluminum tape 43 (connecting member) of a good heat conductor is provided. The aluminum tape 43 connects the aluminum plate 42 and the cap member 50 along the inner surface of the cap member 50. If it is a good heat conductor, another metal foil tape may be used instead of the aluminum tape 43, or a heat conductive paint may be used.

  The rear end of the aluminum tape 43 extends to the vicinity of the rear end of the end surface portion 50a of the cap member 50. The aluminum tape 43 may be extended up to the rear wall 50c.

  In the refrigerator 1 having the above configuration, the air flowing through the cool air passage 8 and the cooler 11 exchange heat by driving the compressor 31 and the blower fan 10 to generate cool air. The cold air generated by the cooler 11 is discharged to the ice making room 25, the freezing room 26, and the freezing room 6 through the discharge port 8a. The cold air discharged into the ice making room 25, the freezing room 26, and the freezing room 6 returns to the cooler 11 through the return port 8b. Thereby, the inside of the ice making room 25, the freezing room 26, and the freezing room 6 is cooled.

  When the damper 23 is opened, cool air flows into the cool air passage 7 and cool air is discharged from the discharge port 7a to the refrigerator compartment 4. The cold air discharged into the refrigerator compartment 4 flows out of the refrigerator compartment 4 and is discharged into the vegetable compartment 5 through a communication port (not shown). And it returns to the cold air | gas channel | path 8 via a return channel | path (not shown). Thereby, cooling in the refrigerator compartment 4 and the vegetable compartment 5 is performed.

  When the freezer compartment 6 is cooled, the cold air in the freezer compartment 6 is insulated by the vacuum heat insulating material 39 and the foam heat insulating material 13 to prevent condensation on the front surface of the glass plate 46. The indoor heat is absorbed over a wide area by the aluminum plate 42 through the glass plate 46. The heat of the aluminum plate 42 is transferred to the inner surface of the cap member 50 through the aluminum tape 43. Thereby, dew condensation on the cap member 50 can be prevented.

  Further, since the aluminum tape 43 is arranged to extend to the inner surface of the end surface portion 50a of the cap member 50, heat is transferred to the rear portion of the cap member 50. Therefore, dew condensation on the cap member 50 can be more reliably prevented.

  According to the present embodiment, the good thermal conductor aluminum plate 42 (heat transfer portion) covering the back surface of the front member 41 of the heat insulating door 40 and the inner surface of the cap member 50 are connected by the good thermal conductor aluminum tape 43 (connecting member). . Therefore, the heat in the room is absorbed by the aluminum plate 42 having a large area and transmitted to the cap member 50 through the aluminum tape 43. Thereby, dew condensation of the cap member 50 can be prevented.

  Further, since the aluminum tape 43 (connecting member) is fixed on the inner surface of the end surface portion 50 a of the cap member 50, heat is transferred to the rear portion of the cap member 50. Therefore, dew condensation on the cap member 50 can be more reliably prevented.

  Moreover, the connection member which connects the back surface of the front member 41 and the inner surface of the cap member 50 with metal foil tapes, such as the aluminum tape 43, is easily realizable.

  The front member 41 is formed by fixing a glass plate 46 to the front surface of a metal plate such as an aluminum plate 42. For this reason, while improving the designability of the heat insulation door 40, the heat-transfer part which covers the back surface of the heat insulation door 40 and absorbs heat of a room | chamber interior can be implement | achieved easily.

  Moreover, since the vacuum heat insulating material 39 is embedded in the heat insulation door 40, the heat insulation door 40 can be formed thinly and the volumetric efficiency of the refrigerator 1 can be improved. At this time, the aluminum plate 42 and the aluminum tape 43 can prevent condensation on the cap member 50 of the thin heat insulating door 40.

Second Embodiment
Next, FIG. 6, FIG. 7 shows the front view and perspective view of the heat insulation door 40 of the freezer compartment 6 of the refrigerator 1 of 2nd Embodiment, FIG. 8 has shown BB sectional drawing of FIG. For convenience of explanation, the same reference numerals are given to the same parts as those in the first embodiment shown in FIGS. In the present embodiment, a grip 51 is provided on the top of the heat insulating door 40 as compared to the first embodiment. Other parts are the same as those in the first embodiment.

  A recessed portion 50d is formed in the end surface portion 50a on the upper surface of the heat insulating door 40. A grip 51 is formed by the front wall of the recess 50d, and the heat insulating door 40 is opened and closed by placing a finger inserted into the recess 50d on the grip 51.

  As in the first embodiment, the front member 41 of the heat insulating door 40 is provided with a glass plate 46 on the front surface, and the back surface is covered with an aluminum plate 42 (heat transfer portion) with a good thermal conductor.

  An aluminum tape 43 (connecting member) made of a good thermal conductor connects the aluminum plate 42 and the cap member 50 along the inner surface of the cap member 50. At this time, the aluminum tape 43 is fixed to the inner surface of the back wall 50e of the recess 50d and the inner surface of the end surface portion 50a.

  The indoor heat is absorbed over a wide area by the aluminum plate 42 through the glass plate 46. The heat of the aluminum plate 42 is transferred to the inner surface of the cap member 50 through the aluminum tape 43. For this reason, the dew condensation on the end surface part 50a of the cap member 50 is prevented similarly to 1st Embodiment.

  In addition, a thin thin portion 55 of the foam heat insulating material 13 is formed behind the recess 50d. However, since the aluminum tape 43 is fixed to the back wall 50e of the recess 50d, it is possible to prevent condensation on the back wall 50e. it can.

  If the vacuum heat insulating material 39 is disposed in the thin wall portion 55, the gap between the front and rear sides of the vacuum heat insulating material 39 is reduced, so that the foam heat insulating material 13 is difficult to enter and a void is generated. For this reason, dew condensation on the back wall 50e of the recess 50d can be prevented with the above simple configuration, and the vacuum heat insulating material 39 can be disposed on the inner peripheral side of the recess 50d to prevent voids.

  According to this embodiment, the aluminum plate 42 (heat transfer part) and the inner surface of the cap member 50 are connected by the aluminum tape 43 (connection member) of a good thermal conductor. For this reason, dew condensation on the cap member 50 can be prevented.

  Further, since the aluminum tape 43 is fixed on the back wall 50e of the recess 50d, it is possible to prevent condensation on the back wall 50e in which the thin portion 55 is formed in the rear. Further, since the vacuum heat insulating material 39 does not have to be disposed in the thin portion 55, the foam heat insulating material 13 can be easily filled.

  Further, since the aluminum tape 43 extends to the inner surface of the end surface portion 50a and is fixed, dew condensation on the end surface portion 50a can be prevented.

  In addition, in this embodiment, although the holding part 51 is formed in the upper part of the heat insulation door 40, you may form in a side part or a lower part. Alternatively, the grip portion may be formed of a different member different from the cap member 50, and the concave portion 50d for inserting a finger to be hung on the grip portion may be provided in the end surface portion 50a.

<Third Embodiment>
This embodiment differs in the structure of the front member 41 of the heat insulation door 40 with respect to 1st Embodiment. Other parts are the same as those in the first embodiment. The front member 41 is formed of a single decorative steel plate. Thereby, the back surface of the front member 41 is covered with the heat-transfer part which consists of a decorative steel plate of a heat good conductor.

  Therefore, the same effect as that of the first embodiment can be obtained. Moreover, the number of parts of the heat insulation door 40 can be reduced. In addition, you may form the front member 41 of 2nd Embodiment with a decorative steel plate.

  In 1st-3rd embodiment, although the heat insulation door 40 of the freezer compartment 6 is demonstrated, similarly about another heat insulation door, the heat transfer part of the heat good conductor which covers a back surface, and the cap member 50 are heat good conductors. You may connect by a connection member.

  According to this invention, it can utilize for the refrigerator provided with the heat insulation door.

DESCRIPTION OF SYMBOLS 1 Refrigerator 2 Main body part 3 Heat insulation box 4 Refrigeration room 4R, 4L Thermal insulation door 5 Vegetable room 5a Thermal insulation door 6 Freezing room 6b, 6c, 6d Storage case 7 Cold air passage 7a, 8a Discharge port 8 Cold air passage 8b Return port 10 Fan DESCRIPTION OF SYMBOLS 11 Cooler 13 Foam insulation material 14 Outer box 15 Inner box 18 Partition part 23 Damper 25 Ice making room 25a Thermal insulation door 25b Ice storage case 26 Freezing room 26a Thermal insulation door 26b Storage case 30 Machine room 31 Compressor 32c Partition wall 35, 36 Partition part 39 Vacuum heat insulating material 40 Heat insulating door 41 Front member 42 Aluminum plate 43 Aluminum tape 44 Film 45 Back member 46 Glass plate 47 Adhesive layer 50 Cap member 50a End surface portion 50b Front wall 50c Rear wall 50d Recess 50e Back wall 51 Holding portion 55 Thin wall portion

Claims (7)

  In the refrigerator that opens and closes the storage room with a heat insulating door filled with foam heat insulating material, the heat insulating door has a flat plate-like front member disposed on the front surface and a resin cap member that covers a peripheral surface, and the front member The refrigerator is characterized in that at least the back surface is covered with a heat transfer portion of a heat good conductor, and a heat good conductor connecting member for connecting the heat transfer portion and the cap member is provided along the inner surface of the cap member.   The heat insulating door has a grip portion on the periphery for holding a finger when opening and closing, an end surface portion where the cap member forms a peripheral end surface of the heat insulating door, and a finger which is recessed in the end surface portion and is hung on the grip portion. The refrigerator according to claim 1, further comprising: a recessed portion to be inserted, wherein the connecting member is fixed onto a back wall of the recessed portion.   The refrigerator according to claim 2, wherein the connecting member is fixed to an inner surface of the end surface portion.   The refrigerator according to claim 1, wherein the cap member has an end surface portion that forms a peripheral end surface of the heat insulating door, and the connecting member is fixed to an inner surface of the end surface portion.   The refrigerator according to any one of claims 1 to 4, wherein the connecting member is formed of a metal foil tape.   The refrigerator according to any one of claims 1 to 5, wherein the front member is formed by adhering a glass plate to a front surface of the heat transfer section made of a metal plate.   The refrigerator according to claim 1, further comprising a vacuum heat insulating material embedded in the heat insulating door.

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