JP6312470B2 - refrigerator - Google Patents

Description

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

  There is a demand for improved energy-saving performance of refrigerators in the market. The energy-saving performance of the refrigerator is greatly influenced by the box insulation performance. In recent years, heat penetration from box insulation walls has been decreasing due to improved performance of heat insulating materials, and in order to further improve energy saving performance, reduction of heat penetration from the door periphery, which is the boundary of the insulation wall, has become an issue. .

FIG. 6 is a partial perspective view showing a door of a conventional refrigerator. As shown in FIG. 6, the refrigerator door includes a door inner plate 1, a door outer plate 2, and a protrusion 3 formed by the door inner plate 1. A gap (throat) is formed in the door periphery by the inner box of the box which is a storage room of the refrigerator and the protrusion 3.
A fin-like packing 4c is provided at the door periphery, and is configured to prevent cold air from entering the door periphery.

JP 2011-080732 A

  However, in the packing shape as shown in FIG. 6, since the fins of the packing are positioned in the vertical direction, that is, the longitudinal direction of the protruding portion 3 of the door, on the peripheral edge of the door on both side surfaces, the direction C from the back of the refrigerator toward the door Although it has an effect of preventing the cold air from entering, it is not effective for preventing the cold air from entering in the longitudinal direction B of the protrusion 3.

  At the door periphery on both sides, buoyancy is generated by the heat of the condensation pipe, and an updraft may occur. Moreover, buoyancy is generated by the heat of the dew condensation prevention heater installed in the partition located in the gap between the doors even at the periphery of the refrigerator door that has two doors at the box opening and can be opened. Airflow may occur. In such a case, the conventional packing shape is not effective for suppressing convection because convection occurs in a direction parallel to the fins.

  The present invention has been made in order to solve the above-described problems, and can prevent the intrusion of cold air to the peripheral edge of the door, which is a boundary of the heat insulation wall, and suppress the convection, thereby reducing the amount of heat leakage and consumption. It aims at providing the refrigerator which can reduce electric energy.

In the refrigerator according to the present invention, the refrigerator includes a storage chamber and a door that closes the opening on the front surface of the storage chamber.
The door
A protrusion protruding from an edge of the surface on the storage chamber side, and a protrusion extending in the longitudinal direction to be inserted into the storage chamber in a closed state;
The packing is attached to the protruding portion, and includes a packing that closes a longitudinal direction of a gap between the inner wall of the storage chamber and the protruding portion in a closed state.

  According to the refrigerator according to the present invention, the protrusion protruded from the edge of the surface of the door on the storage chamber side, the protrusion extending in the longitudinal direction inserted into the storage chamber in the closed state, and the protrusion A packing that is attached and has a packing that closes the longitudinal direction of the gap between the inner wall of the storage chamber and the protruding portion in a closed state, thereby preventing the intrusion of cold air into the door periphery due to the rising airflow, and convection By suppressing, heat intrusion from the door periphery can be reduced and temperature rise in the cabinet can be suppressed. Thereby, since the load of the heat pump is reduced and the input power amount is reduced, the energy saving performance of the refrigerator is improved.

3 is a partial perspective view showing an open state of heat insulating door 120 in refrigerator 100 according to Embodiment 1. FIG. 3 is a partial cross-sectional view of the refrigerator 100 according to Embodiment 1 in a closed state. FIG. It is a fragmentary perspective view of the heat insulation door 120 concerning Embodiment 2. FIG. It is a fragmentary perspective view of the heat insulation door 120 concerning Embodiment 3. FIG. It is a fragmentary sectional view in the closed state in refrigerator 100 concerning Embodiment 4. FIG. It is a fragmentary perspective view of the heat insulation door of the refrigerator for a comparison.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the description of each embodiment, the directions such as “up”, “down”, “left”, “right”, “front”, “back”, “front”, “back” are However, it is not intended to limit the arrangement or orientation of devices, instruments, parts, or the like.

Embodiment 1 FIG.
FIG. 1 is a partial perspective view showing an open state of heat insulating door 120 in refrigerator 100 according to the present embodiment.
The refrigerator 100 includes a heat insulating box 130 and a heat insulating door 120 that opens and closes the heat insulating box 130.

The heat insulating box 130 is configured by an outer box 131, an inner box 132, and a heat insulating material sealed between the outer box 131 and the inner box 132.
The refrigerator 100 includes an inner wall 111 that partitions the inside of the heat insulation box 130 into a plurality of storage chambers 110.
The storage chamber 110 is formed by the heat insulating box 130 or the heat insulating box 130 and the inner wall 111 and is cooled by, for example, cold air blown from the rear to the front.
The storage chamber 110 includes an opening 113 on the front surface and is opened and closed by a heat insulating door 120.

  The heat insulating door 120 includes at least a door inner plate 1 constituting the inner surface and a door outer plate 2 constituting the outer surface. The heat insulating door 120 is configured by sealing a heat insulating material between the door inner plate 1 and the door outer plate 2. The heat insulating door 120 is configured to cover the opening 113 of the heat insulating box 130.

  In the present embodiment, the storage chamber 110 at the top of the refrigerator 100 and the heat insulating door 120 are shown. However, the present embodiment is not limited to this, and the present embodiment can be applied to a heat insulating door of a lower storage chamber and a heat insulating door of a storage chamber formed between an upper portion and a lower portion. Further, in this embodiment, a door system that opens and closes on one side is shown, but any type of door may be used as long as it is a heat insulating door of a refrigerator such as a drawer type heat insulating door or a double door heat insulating door. .

The heat insulating door 120 includes a protruding portion 3 formed by the door inner plate 1.
The protrusion 3 protrudes from the edge of the door inner plate 1 (surface on the storage chamber side) of the heat insulating door 120 and is inserted into the storage chamber 110 when the heat insulating door 120 is closed. The protrusion 3 protrudes in a square shape along the inner wall of the storage chamber 110, for example. That is, the protruding portion 3 protrudes in a quadrangular shape so that the outer peripheral surface faces the inner wall of the storage chamber 110.

  The inner wall 111 of the storage chamber 110 is, for example, the inner box 132 and the partition part 140 of the heat insulating box 130. For example, the inner wall 111 of the storage chamber 110 shown in FIG. 1 has an upper surface and a side surface that are the inner box 132 of the heat insulating box 130, and a lower surface that is the partition portion 140. If the storage chamber is in the center of the refrigerator 100, for example, the inner wall has an upper surface and a lower surface that are the partition portions 140, and the side surface is the inner box 132 of the heat insulating box 130.

In the case of a double-opening type heat insulating door, the inner wall 111 of the storage chamber 110 is configured as follows.
In the case of the double-opening type heat insulating door 120, for example, the heat insulating door 120 includes a first heat insulating door and a second heat insulating door. Each of the 1st heat insulation door and the 2nd heat insulation door is the same as that of composition explained in this Embodiment 1. The opening 113 of the storage chamber 110 is covered with a first heat insulating door and a second heat insulating door, the first heat insulating door is installed at a free end, and closes a gap between the first heat insulating door and the second heat insulating door when the door is closed. Left and right partitioning bodies are provided.
At this time, the inner wall 111 of the storage chamber 110 includes, for example, an inner box 132 of the heat insulation box 130, a partition 140, and left and right partitions. For example, when the storage chamber 110 shown in FIG. 1 is divided into two on the left and right sides, the inner wall of the left storage chamber is the inner box 132 of the heat insulating box 130 on the upper surface and the left side surface, and the lower surface is the partition portion 140. The right side surface is a left and right partition. Similarly, the upper wall and the right side of the inner wall of the right storage chamber are the inner box 132 of the heat insulating box 130, the lower surface is the partition 140, and the right side is the left and right partition.

  In addition, the protrusion part 3 does not need to be continuously formed in the hollow square shape. For example, the outer peripheral surface may be formed so as to face at least a part of the inner wall 111 of the storage chamber 110.

  In the present embodiment, as an example, a description will be given of the protruding portion 3 formed to extend in the vertical direction (an example of the longitudinal direction) at the edge of the side portion of the heat insulating door 120.

FIG. 2 is a partial cross-sectional view in the closed state of refrigerator 100 according to the present embodiment. FIG. 2 shows a DD cross section of FIG. 1 when the heat insulating door 120 of the refrigerator 100 is closed.
As shown in FIG. 2, a condensing pipe 8 is provided in the vicinity of the open / close portion inside the heat insulating box 130.
In the closed state, a gap (hereinafter referred to as the throat 10) is generated between the outer peripheral surface 3a of the protruding portion 3 and the inner box 132. The front / rear blocking packing 4 a prevents the cool air in the C direction from the rear portion of the storage chamber 110 from entering the throat 10.

The refrigerator according to the present embodiment includes a blocking packing 4b that closes the throat 10 in the vertical direction. The blocking packing 4b is an example of a fin-like packing that closes the vertical direction (longitudinal direction) of the throat 10 (gap) between the inner wall of the storage chamber 110 and the protruding portion 3 in the closed state.
The blocking packing 4 b is a packing in which a fin is positioned between the inner box 132 and the protruding portion 3 substantially perpendicular to the vertical direction (longitudinal direction) of the protruding portion 3.

  As shown in FIG. 1, the blocking packing 4 b is provided at two locations, that is, an upper end portion and a lower end portion of the protruding portion 3 extending in the vertical direction.

The blocking packing 4b may not be substantially perpendicular to the vertical direction (longitudinal direction).
The protrusion 3 may be formed obliquely upward from the outer circumferential surface 3a. Alternatively, it may be formed obliquely downward.
Further, the position where the vertical direction (longitudinal direction) is closed may not be the upper end and the lower end of the throat 10. One may be provided at any position between the upper end portion and the lower end portion of the throat 10, or two or more positions may be provided between the upper end portion and the lower end portion.

  As described above, according to the refrigerator 100 according to the present embodiment, even when buoyancy is generated by the heat of the condensation pipe 8 and an upward airflow is generated in the throat 10, it is possible to prevent cold air from entering the throat 10. Can do.

Embodiment 2. FIG.
In the present embodiment, differences from the first embodiment will be mainly described.
In the first embodiment, the protruding portion 3 extending in the vertical direction is described with the vertical direction as the longitudinal direction. In the present embodiment, the protruding portion 3 extending in the horizontal direction will be described with the horizontal direction as the longitudinal direction.
The same components as those described in Embodiment 1 may be denoted by the same reference numerals and description thereof may be omitted.

FIG. 3 is a partial perspective view of the heat insulating door 120 according to the present embodiment.
As shown in FIG. 3, the throat 10 a is a gap formed between the protruding portion 3 formed to extend in the horizontal direction (an example of the longitudinal direction) and the heat insulating box body 130 or the partition portion 140.
Similarly to the first embodiment, the blocking packing 4b closes the longitudinal direction (here, the horizontal direction) of the throat 10a.

  As described above, the refrigerator 100 according to the present embodiment forms the throat 10a in the horizontal direction of the door periphery by the protrusion 3 and the inner box 132 or the partition 140, and the direction in which the throat 10a extends. A fin-shaped blocking packing 4b is provided. The blocking packing 4b can prevent cold air from entering the throat 10a from the direction D, and can suppress horizontal (longitudinal) convection in the throat 10a.

Embodiment 3 FIG.
In the present embodiment, differences from the first and second embodiments will be mainly described.
The same components as those described in the first and second embodiments are denoted by the same reference numerals, and the description thereof may be omitted.

  The refrigerator 100 according to the present embodiment includes a plurality of blocking packings 4b that block the longitudinal direction (vertical direction) of the throat 10 (see FIG. 1). Moreover, the refrigerator 100 according to the present embodiment includes a plurality of blocking packings 4b that block the longitudinal direction (horizontal direction) (see FIG. 3) of the throat 10a.

FIG. 4 is a partial perspective view of the heat insulating door 120 according to the present embodiment.
FIG. 4 shows, as an example, a plurality of blocking packings 4b that close the longitudinal direction (vertical direction) of the throat 10 whose longitudinal direction is the longitudinal direction. The blocking packing 4b is a plurality of fin-shaped packings positioned substantially perpendicular to the direction B.
Similarly, the throat 10a whose longitudinal direction is the horizontal direction may include a plurality of blocking packings 4b that close the longitudinal direction (horizontal direction).

  According to refrigerator 100 according to the present embodiment, convection of cold air flowing in the longitudinal direction of throat 10 can be suppressed, and heat intrusion from the door periphery can be prevented.

Embodiment 4 FIG.
In the present embodiment, differences from the first embodiment will be mainly described.
The same components as those described in Embodiment 1 may be denoted by the same reference numerals and description thereof may be omitted.

FIG. 5 is a partial cross-sectional view in the closed state of refrigerator 100 according to the present embodiment. FIG. 5 is a diagram corresponding to FIG. 2 described in the first embodiment.
5 is different from FIG. 1 in that the front / rear blocking packing 4a is not provided. Moreover, it is a point provided with the inner box convex part 132a formed so that it might protrude in the inside of the storage chamber 110 from the opening part 113 periphery of the inner box 132. FIG.

The inner box convex portion 132 a is a convex portion formed by the inner box 132 at the rear of the protruding portion 3 in the height direction. The inner box convex portion 132 a is configured to cover the throat 10 that is a gap between the inner box 132 and the protruding portion 3. That is, the inner box convex portion 132 a is provided so as to close the throat 10.
As shown in FIG. 5, the throat 10 is a bag-like space composed of the inner box 132, the inner box convex portion 132 a, the outer peripheral surface 3 a of the protruding portion 3, and the gasket 6. The throat 10 is formed at the door periphery.

The inner box convex portion 132a can prevent cold air from entering the throat 10 even when there is no front / rear blocking packing 4a.
In addition, the front / rear blocking packing 4a may be provided, and further, the inner box convex portion 132a may be provided. In this way, by providing the front and rear blocking packing 4a and the inner box convex portion 132a in a double manner, for example, even if the door peripheral edge portion where the protruding portion 3 does not exist, cold air can be prevented from entering the throat 10. .

The refrigerator which concerns on said Embodiment 1-4 installs the packing in which a fin is located so that the longitudinal direction of the protrusion part of a door periphery may be plugged up in a door periphery. For example, a packing in which at least one fin is located is installed perpendicular to the longitudinal direction of the protrusion at the peripheral edge of the door.
Therefore, by preventing the intrusion of cool air into the door periphery and suppressing the convection, the heat intrusion from the door periphery can be reduced and the temperature rise in the cabinet can be suppressed. Thereby, since the load of the heat pump is reduced and the input power amount is reduced, the energy saving performance of the refrigerator is improved.

As mentioned above, although embodiment of this invention was described, you may implement in combination of 2 or more among these embodiment. Alternatively, one of these embodiments may be partially implemented. Alternatively, two or more of these embodiments may be partially combined.
The above-described embodiments are essentially preferable examples, and are not intended to limit the scope of the present invention, its application, and uses, and various modifications can be made as necessary. . The present invention is not limited to these embodiments, and various modifications can be made as necessary.

  DESCRIPTION OF SYMBOLS 1 Door inner plate, 2 Door outer plate, 3 Protruding part, 3a Outer peripheral surface, 4a Front and rear shut-off packing, 4b Shut-off packing, 4c packing, 5 Heat insulating material, 6 Gasket, 8 Condensation pipe 10, 10a Throat, 100 Refrigerator, 110 Storage room, 111 inner wall, 113 opening, 120 heat insulation door, 130 heat insulation box, 131 outer box, 132 inner box, 132a inner box convex part, 140 partitioning part.

Claims (5)

In a refrigerator comprising a storage room and a door that closes an opening on the front surface of the storage room,
Wherein a protruding portion extending in a longitudinal direction projecting from the edge of the side surface of the front Stories storage compartment door, is inserted into the storage compartment in the closed state, the inner wall peripheral surface of the projecting portion of the storage chamber A projecting portion opposite to
Formed from the gasket disposed at the end of the protrusion along the longitudinal direction of the protrusion and disposed on the surface of the door on the storage chamber side, the outer peripheral surface of the protrusion, and the inner wall of the storage chamber A front and rear blocking portion that blocks the bag-shaped gap and the storage chamber;
Wherein the outer peripheral surface of the projecting portion a packing formed toward the inner wall of the storage compartment, refrigerator with a packing for closing the longitudinal direction between the front Kisuki in the closed state. The packing, the refrigerator according to 請 Motomeko 1 Ru human-les-like Der. The packing refrigerator according to 請 Motomeko 2 formed perpendicularly to the longitudinal direction. The packing is a refrigerator according to any one of the three multiple positions in the longitudinal direction of the gap from the busy instrument請 Motomeko 1. The refrigerator is
A inner wall protrusions projecting from the inner wall of the storage chamber, either the inner wall protrusion for blocking said storage chamber and the gaps in the closed state from the 請 Motomeko 1 having as the front and rear cut-off portion 4 of 1 The refrigerator according to item .

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