JP5198104B2 - refrigerator - Google Patents

Description

  The present invention relates to a refrigerator, and more particularly to a refrigerator having a double door.

  Conventionally, in a refrigerator in which the front opening of the refrigerator main body is closed with a double door, the gap between the left and right double doors is filled on the reverse side of one of the doors on the side opposite to the pivot. A rotary vertical partition is provided (see Patent Document 1 below).

FIG. 9 shows a configuration example of a conventional vertical partition body 100. A heat insulating material 104 is provided inside a resin vertical partition housing 102, and a front plate 106 that forms a front surface portion is shown in FIG. In order to ensure a magnetizing function by the door gasket 112 of the double doors 108 and 110, it is made of an iron plate. That is, the front plate 106 is in close contact with the door gasket 112 by a magnetic force, and serves as a partition between the inside and the outside of the box. Therefore, since the front plate 106 is cooled by the temperature in the cabinet, condensation is likely to occur. As a countermeasure, a heater 114 is provided behind the front plate 106, and the front plate 106 is heated by the heater 114. This prevents condensation.
JP 2004-353943 A JP 2001-280835 A JP-A-10-160330

  As described above, the front plate 106 of the vertical partition 100 is heated by the heater 114, but since the interior adjacent to this is low temperature, there is a temperature between the front plate 106 and the surface of the vertical partition housing 102. There is a difference. Here, since the heat conduction in the interior of the vertical partition 100 is kept small by the heat insulating material 104, the heat conduction at the side surface portion 102A of the vertical partition housing 102 becomes relatively large (see FIG. 10). Heat conduction through the side surface portion 102A becomes a heat load in the refrigerator. Moreover, when the heat of the heater 114 escapes to the inside of the warehouse, the temperature of the front plate 106 of the vertical partition 100 is lowered, which causes the power consumption of the heater 114 to increase.

  Therefore, the present invention reduces the heat load to the interior by suppressing the heat conduction to the inner side of the side wall of the vertical partition, and suppresses the temperature drop of the front portion of the vertical partition, It aims at reducing the input to heating means, such as a heater.

  Conventionally, in a partition structure having a dew-proof pipe, the purpose of reducing heat leakage from a heat source into a warehouse is disclosed in Patent Document 2, for example, in which a partition housing is doubled and air is interposed therebetween. It is disclosed that a layer is provided, and Patent Document 3 discloses that a notch portion is provided in a steel plate portion of a front portion of a refrigerator main body with which a gasket abuts. However, in the configuration where the partition housing is doubled like the former, there is a problem that the structure of the partition is complicated, and in the configuration where the notch portion is provided in the front portion of the refrigerator body like the latter, There is a problem of deteriorating the appearance. Therefore, there is a need for a vertical partition configuration that is simple in configuration, does not impair the appearance, and that provides an energy saving effect.

The refrigerator according to the present invention includes a double door that is pivotally supported on both left and right sides of the front opening of the storage chamber to close the opening, and an anti-pivot support of one of the double doors. It is attached to the one door by a hinge provided on the back surface of the side, and in contact with the door gasket by rotating from a posture substantially perpendicular to the door surface to a posture substantially parallel to the door surface according to the closing operation. And a vertical partition extending in the vertical direction that closes between the double doors, wherein the vertical partition forms a front surface of the vertical partition and serves as a contact portion of the door gasket. And a vertical partition housing that forms the outer shell of the vertical partition together with the front plate by forming the left and right side portions and the back surface of the vertical partition, and heating means provided behind the front plate, And a heat insulating material provided inside the vertical partition housing. Te becomes, the vertical partition side portion of the hinge side of the side surface portions of the left and right housing only, heat transfer resistance portion extending vertically to reduce the heat conduction to the compartment inward from the front plate side of the side surface portion Is provided.

  According to the present invention, since the heat transfer resistance portion extending in the vertical direction is provided on the side surface portion of the vertical partition housing, it is possible to suppress the heat from the heating means from being transmitted to the inner side through the side surface portion. The heat load on can be reduced. Moreover, since the temperature fall by the front board of a vertical partition can be suppressed by this, the input with respect to a heating means can be reduced and power consumption can be reduced.

  Hereinafter, the refrigerator which concerns on one Embodiment of this invention is demonstrated based on drawing.

  FIG. 1 is a longitudinal sectional view of a refrigerator 10 according to the embodiment, and FIG. 2 is a front view of the refrigerator 10 with a partial door opened. This refrigerator 10 is provided with a left and right refrigerating chamber 12 with a double door opening at the top, and an ice making chamber 14 and a temperature switching chamber 16 are provided adjacent to the left and right below the refrigerating chamber 12, and vegetables are disposed below the refrigerating chamber 12. The chamber 18 and the freezing chamber 20 are provided by a drawer door system.

  In the front opening portion of the refrigerator compartment 12, the opening portion is divided in the width direction, and the left and right doors 24 and 26 are of the double doors that are pivotally supported by hinges 22 and 22 provided on the left and right sides of the refrigerator main body. Is provided and is configured to be closed by both doors 24 and 26. A gasket 28 having a magnet (not shown) inside is attached to the peripheral edges of the back surfaces of the doors 24 and 26, and is in contact with the opening edge of the refrigerator main body and the vertical partition 30 described later for refrigeration. The inside of the chamber 12 is sealed.

  A vertical partition that extends along the vertical direction on the reverse side of the left door 24 that faces the side of the pivot and that has a length slightly smaller than the vertical dimension of the refrigerator compartment 12 where the door is closed. 30 is pivotally supported. The vertical partition 30 has a posture substantially perpendicular to the door surface shown in FIG. 3A and a posture substantially parallel to the door surface shown in FIG. 3B by a hinge 32 provided on the inner side of the left door 24. It is provided so that rotation is possible between them. Specifically, the vertical partition 30 includes a guide groove 34 as a partition side engaging portion provided at an upper end thereof, and a guide pin 36 as a main body side engaging portion provided in an opening ceiling surface of the refrigerator compartment 12. When the left door 24 is closed from the open state shown in FIG. 3A due to the engagement, the vertical partition body 30 rotates and assumes the posture shown in FIG. 3B, whereby the left and right doors 24, It is configured to abut against the gasket 28 of 26 and to block between the doors 24 and 26.

  As shown in FIG. 4, the vertical partition 30 has a front plate 38 that forms a front surface portion thereof and serves as a contact portion of the gasket 28, and left and right side surfaces and a back surface portion. A vertical partition housing 40 constituting a rectangular parallelepiped outer shell of the partition 30, a heater 42 as a heating means provided behind the front plate 38, and a heat insulating material 44 provided inside the vertical partition housing 40. And comprising.

  The vertical partition housing 40 is a U-shaped member having a horizontal cross section that opens forward, and is formed of a resin material. The front plate 38 is formed of an iron plate so as to be magnetized by the magnet of the gasket 28. Since the iron plate is excellent in thermal conductivity, condensation is prevented by heating the heater 42. The heater 42 is composed of a heating wire extending in the vertical direction at a predetermined interval in the width direction of the vertical partition body 30, and is attached in a state of being in contact with the back surface of the front plate 38. The heat insulating material 44 is filled so as to fill the internal space of the vertical partition body 30, and prevents heat from the heater 42 from being transmitted through the inside of the vertical partition body 30 to the inside of the cabinet.

In the above configuration, in the first embodiment (however, it is a reference example) , slit-like notches 46 extending in the vertical direction are provided on the left and right side surfaces 40A, 40A of the vertical partition housing 40. . The notch 46 is provided at a central portion in the front-rear direction of each side surface portion 40A, and divides (edge cut) the front side surface portion front side portion 40A1 and the rear side surface portion rear side portion 40A2. As shown in FIG. 5, the notches 46 are provided over substantially the entire vertical partition housing 40 in the vertical direction. However, in order to ensure the rigidity of the vertical partition housing 40, the notches 46 are provided at a plurality of locations in the vertical direction. A connecting portion 48 that crosses the notch 46 is provided to connect the front side portion 40A1 and the rear side portion 40A2 of the side portion.

  The notch 46 functions as a heat transfer resistance portion that reduces heat conduction from the front plate 38 side to the inner side of the side surface portion 40A. That is, by providing the notch portion 46, it is possible to increase the resistance to heat conduction at the side surface portion 40A, and as shown in FIG. 4, the heat conduction from the front plate 38 heated by the heater 42 causes the notch portion 46 to flow. It becomes small at the boundary, and the heat load of the refrigerator compartment 12 due to heat conduction to the inside of the warehouse can be reduced. Moreover, the temperature drop of the front plate 38 can be prevented by reducing the heat conduction to the inside of the cabinet, and the input to the heater 42 can be reduced.

  As described above, according to the present embodiment, the side surface portion 40A of the vertical partition housing 40 is separated from the front plate 38 by providing the cutout portion 46 as the heat transfer resistance portion on the side surface portion 40A of the vertical partition body 30. Heat conduction to the inside of the warehouse due to transmission can be reduced, and power consumption can be reduced by reducing the thermal load in the warehouse and the heater input. In addition, since the notched portion 46 is provided in the side surface portion 40A that is difficult to appear in the appearance, an energy saving effect can be obtained with a simple structure without impairing the appearance.

FIG. 6 is a cross-sectional view of a vertical partition 30A according to the second embodiment (however, it is a reference example) . In this embodiment, as the heat transfer resistance portion, a thin portion 48 is provided instead of providing the notch portion 46, and other configurations are the same as those of the first embodiment.

  In the second embodiment, the left and right side surface portions 40A, 40A of the vertical partition case 40 are provided with thin portions 48 extending in the vertical direction at the central portion in the front-rear direction of each side surface portion 40A. The thin portion 48 is formed by providing a concave portion 50 extending in the vertical direction on the inner surface side of the side surface portion 40A of the vertical partition housing 40, and the front side surface portion front side portion 40A1 and the rear side surface portion rear side. It is formed thinner than the portion 40A2. Thus, also by providing the thin part 48 in the middle of the heat conduction path in the side part 40A, the thin part 48 becomes resistance to heat conduction in the side part 40A as in the first embodiment, and the inside of the warehouse The heat load of the refrigerator compartment 12 due to heat conduction to the interior can be reduced, and the temperature conduction of the front plate 38 can be prevented by reducing the heat conduction to the inside of the warehouse, and the input to the heater 42 is reduced. can do.

  In the case of the second embodiment, the thin portion 48 is formed by providing the concave portion 50 on the inner surface side of the side surface portion 40A, and the front surface side is flat. Therefore, the side surface portion 40A has a notch as an opening. As compared with the first embodiment in which 46 is provided, the appearance can be refreshed, and intrusion of cold air or water droplets into the interior of the vertical partition 30 can be prevented. In the first embodiment as well, in order to obtain these advantages, it is possible to close the notch portion 46 with a tape. If a resin tape having low thermal conductivity is used as the tape, the heat transfer resistance portion The function can be maintained.

FIG. 7 is a cross-sectional view of a vertical partition 30B according to the third embodiment (however, it is a reference example) . In this embodiment, the configuration of the front plate 38 is different from that of the first embodiment, and other configurations are common.

  In the third embodiment, the front plate 38 includes a pair of left and right resin first front plate portions 52 and 52 with which the gaskets 28 and 28 of the double door left door 24 and the right door 26 abut, respectively. The second front plate portion 54 is made of iron and provided between the first front plate portions 52 and 52. The magnetic bodies 56 and 56 are provided in contact with the pair of first front plate portions 52 and 52, respectively, and the heater 42 is provided in contact with the second front plate portion 54 and behind. Yes.

  Since only the gap between the doors 24 and 26 has a risk of condensation among the front part of the vertical partition 30, the central part of the front part corresponding to the gap part has good heat conductivity. The second front plate portion 54 made of an iron plate is used as the first front plate portion 52 made of a resin having low thermal conductivity, so that heat transfer to the inside of the warehouse is more effective while preventing condensation. And the input to the heater 42 can be reduced.

  On the other hand, if the first front plate portion 52 that serves as the contact portion of the gasket 28 is formed of a resin material in this way, the magnetizing function of the gasket 28 cannot be exhibited, but the first front plate portion as described above. By providing the magnetic body 56 behind 52, the magnetizing function of the gasket 28 can be secured.

  The second front plate portion 54 is not limited to iron as long as it has a higher thermal conductivity than the first front plate portion 52, and a metal material having no magnetizing force can also be used. Since the second front plate portion 54 miniaturized as described above does not require the magnetizing function by the gasket 28, various materials having high thermal conductivity such as aluminum and copper can be used. Therefore, since the degree of freedom in material selection is increased, it is possible to select a low-cost material, and it is also possible to further reduce the input of the heater 42 by selecting a high thermal conductivity material.

FIG. 8 is a cross-sectional view of a vertical partition 30 </ b> C according to the fourth embodiment (however, it is a reference example) . In this embodiment, the configuration of the front plate 38 is different from that of the first embodiment, and other configurations are common.

  In the fourth embodiment, the entire front portion of the vertical partition 30 is constituted by a resin front plate 58. The resin front plate 58 is provided with magnetic members 56 and 56 in contact with the gaskets 28 and 28 of the double door left door 24 and right door 26 in contact with each other. A heater 42 is provided in a contact state behind a portion corresponding to the gap between the doors 24 and 26.

  In this way, by forming the entire front surface portion of the vertical partition 30 with only a resin material having a low thermal conductivity, heat transfer to the inside of the warehouse can be more effectively suppressed and input to the heater 42 can be reduced. Can do. Further, the magnetizing function of the gasket 28 can be ensured by the magnetic body 56 provided in the back as in the third embodiment. When the resin front plate 58 is used in this way, it is considered that the front plate itself is difficult to be heated by the heater 42. However, since the heat conductivity is low, heat transfer to both sides can be suppressed to a small value. The temperature necessary for preventing condensation can be secured.

In the above reference example , the notch portion 46 and the thin portion 48 which are heat transfer resistance portions are provided on the left and right side surface portions 40A and 40A of the vertical partition body 30, but in the present embodiment, these heat transfer resistance portions are provided. It is provided only on one of the side surface portions 40A . Specifically, it is provided on the side surface portion on the left door 24 side to which the vertical partition body 30 is attached , that is, the side surface portion 40B (see FIG. 3B) on the hinge 32 side, which is preferable from the viewpoint of appearance. The side surface portion 40B on the hinge 32 side is difficult for the user to see whether the left door 24 is in the open state or in the closed state, and therefore, if this portion is provided, the appearance is not impaired at all. .

It is a longitudinal cross-sectional view of the refrigerator which concerns on embodiment. It is a front view in the state where the double door type door of the refrigerator was opened. It is a top view of the door which shows the door closing operation | movement of a double door. It is sectional drawing of the vertical partition which concerns on 1st Embodiment. It is a perspective view of the vertical partition. It is sectional drawing of the vertical partition which concerns on 2nd Embodiment. It is sectional drawing of the vertical partition which concerns on 3rd Embodiment. It is sectional drawing of the vertical partition which concerns on 4th Embodiment. It is sectional drawing of the peripheral part of the conventional vertical partition. It is sectional drawing of the conventional vertical partition.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 ... Refrigerator 12 ... Refrigeration room 24, 26 ... Double door 28 ... Gasket 30, 30A, 30B, 30C ... Vertical partition body 38 ... Front plate 40 ... Vertical partition housing | casing, 40A ... Side part 42 ... Heater (heating means)
46 ... Notch (heat transfer resistance)
48 ... Thin part (heat transfer resistance part)
52 ... First front plate portion 54 ... Second front plate portion 56 ... Magnetic body 58 ... Resin front plate

Claims (6)

A double door that is pivotally supported on both the left and right sides of the front opening of the storage chamber and closes the opening, and provided on the reverse side of one of the double doors . It is attached to the one door by a hinge and closes between the double doors by contacting the door gasket by rotating from a posture substantially perpendicular to the door surface to a posture substantially parallel to the door surface according to the closing operation. In a refrigerator comprising a vertical partition extending in the vertical direction,
The vertical partition body forms a front surface portion of the vertical partition body to be a contact portion of the door gasket, and forms a left and right side surface portion and a back surface portion of the vertical partition body together with the front plate. A vertical partition housing constituting the outer shell of the vertical partition, a heating means provided behind the front plate, and a heat insulating material provided inside the vertical partition housing;
Of the left and right side surface portions of the vertical partition housing, only the side surface portion on the hinge side is provided with a heat transfer resistance portion extending in the vertical direction to reduce heat conduction from the front plate side to the inner side of the side surface portion. ,
A refrigerator characterized by that.   The refrigerator according to claim 1, wherein the heat transfer resistance portion is a cutout portion extending in the vertical direction on the side surface portion.   The refrigerator according to claim 1, wherein the heat transfer resistance portion is a thin-walled portion extending in the vertical direction on the side surface portion.   The front plate is provided between a pair of left and right first front plate portions with which the door gaskets of the double doors abut each other and the left and right first front plate portions, and the first front plate portion. And a second front plate portion made of a material having a higher thermal conductivity, a magnetic body is provided behind each of the left and right first front plate portions, and the heating means is provided behind the second front plate portion. The refrigerator according to any one of claims 1 to 3, wherein the refrigerator is provided.   The refrigerator according to claim 4, wherein the second front plate portion is made of a metal material having no magnetizing force.   The refrigerator according to any one of claims 1 to 3, wherein the front plate is formed only of a resin material, and a magnetic body is provided behind a portion of the front plate that contacts the door gasket.

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