JP7079063B2 - refrigerator - Google Patents

Description

Embodiments of the present invention relate to a refrigerator.

In a household refrigerator, a plurality of storage chambers such as a refrigerator compartment and a freezer compartment are provided by partitioning the inside of the heat insulating box by a heat insulating partition wall (see, for example, Patent Document 1). The heat insulating partition wall accommodates a heat insulating material inside a synthetic resin outer shell, and a front plate made of an iron plate is provided on the front surface so that a magnet gasket provided on the back surface side of the door is adsorbed. .. Further, on the back surface side of the front plate, a heat radiation pipe constituting a part of the refrigeration cycle is arranged to prevent dew condensation.

Japanese Patent No. 5510077

However, if the front plate of the heat insulating partition wall is made of an iron plate, the heat of the heat radiating pipe may enter the storage chamber through the front plate, which may lead to a decrease in the cooling property of the storage chamber.
Therefore, there is provided a refrigerator provided with a heat insulating partition wall for partitioning the storage room, which can suppress the invasion of heat into the storage room while preventing dew condensation on the front plate of the heat insulating partition wall.

The refrigerator of the embodiment includes a heat insulating box having a front opening and a heat insulating partition wall for partitioning the inside of the heat insulating box into a plurality of storage chambers. A synthetic resin front plate arranged in the front opening of the heat insulating box so as to close the front surface of the outer shell, a heat radiation pipe for preventing dew condensation arranged on the rear surface side of the front plate, and the heat radiation pipe. The heat insulating member includes a heat insulating member arranged at the rear portion, and the heat insulating member includes a vacuum heat insulating panel and a foamed heat insulating material made of a molded product and having the same shape as the outer shell body. The vacuum heat insulating panel is housed in the outer shell in a state where the vacuum heat insulating panel is housed in the cavity provided in the shell.

A vertical sectional side view illustrating the first embodiment and schematically showing the overall configuration of the refrigerator body. An exploded perspective view of the heat insulating partition wall An exploded perspective view of a heat insulating partition wall showing a second embodiment. An exploded perspective view of a heat insulating partition wall showing a third embodiment. An exploded perspective view of a heat insulating partition wall showing a fourth embodiment.

(1) First Embodiment Hereinafter, the first embodiment will be described with reference to FIGS. 1 and 2. First, with reference to FIG. 1, the overall configuration of the refrigerator according to the present embodiment will be described. The refrigerator main body 1 is configured by providing a plurality of storage chambers in a vertically long rectangular box-shaped heat insulating box body 2 having an open front surface. Specifically, the heat insulating box 2 is provided with a refrigerating room 3, an upper freezing room 4, a vegetable room 5, and a lower freezing room 6 as storage rooms in order from the upper stage.

In the heat insulating box 2, as shown only partially in FIG. 2, a heat insulating material such as a vacuum heat insulating panel (not shown) is arranged between the plastic inner box 2a and the steel plate outer box 2b. It is composed of. Further, the portion of the heat insulating box 2 where the upper freezing chamber 4 is provided is divided into two left and right chambers, the upper freezing chamber 4 is provided on the right side, and the ice making chamber is provided on the left side. A well-known automatic ice making device is installed in the ice making room.

The refrigerating chamber 3 and the upper freezing chamber 4 (and the ice making chamber) are vertically partitioned by a heat insulating partition wall 7. At this time, as will be described in detail later, the heat insulating partition wall 7 is composed of a front wall portion 26 arranged at the front opening of the heat insulating box 2 and a rear wall portion 27 located at the rear portion. There is. Further, the upper freezing room 4 (and the ice making room) and the vegetable room 5 are vertically partitioned by a heat insulating partition wall 8, and the vegetable room 5 and the lower freezing room 6 are vertically partitioned by a heat insulating partition wall 9. It is partitioned. Similar to the heat insulating partition wall 7, the heat insulating partition wall 8 and the heat insulating partition wall 9 also have a configuration in which the front wall portion 26 is provided at the front end of the rear wall portion 27.

A hinge opening / closing type heat insulating door 10 is provided on the front surface of the refrigerating chamber 3. A drawer-type heat insulating door 11 is provided on the front surface of the upper freezing chamber 4, and a storage container 12 is connected to the back surface of the heat insulating door 11. A drawer-type heat insulating door 13 to which a storage container 14 is connected is also provided on the front surface of the vegetable compartment 5. A drawer-type heat insulating door 15 to which a storage container 16 is connected is also provided on the front surface of the freezing chamber 6. A magnet gasket 25 is provided on the back surface side of each of the doors 10, 11, 13, and 15.

Although not shown in detail as a whole, the refrigerator main body 1 contains a refrigerator 17 for a refrigerator for cooling the refrigerator 3 and the vegetable compartment 5, and the upper and lower freezer chambers 4 and 6 (and ice making). A refrigeration cycle with two coolers is incorporated, with a freezer room cooler for cooling the room). A machine chamber 18 that opens at the back of the refrigerator main body 1 is provided on the back side of the lower end portion of the refrigerator main body 1, and although not shown in detail, the compressor 19 and the condenser constituting the refrigerating cycle are contained in the machine chamber 18. In addition to being arranged, a cooling fan device for cooling them, a defrosting water evaporating dish, and the like are arranged. At this time, of the refrigerant pipes constituting the refrigeration cycle, the high temperature portion downstream of the condenser functions as the heat dissipation pipe 20 (see FIG. 2) for preventing dew condensation.

As shown in FIG. 1, a refrigerator chamber 22 for a refrigerator is provided on the back wall of the vegetable compartment 5 in the refrigerator main body 1, and is located at a lower portion in the refrigerator chamber 22 for a refrigerator. The refrigerator 17 for the refrigerator is arranged, and the blower fan 23 is arranged at the upper part. With this, when the blower fan 23 is driven, the cold air generated by the refrigerator 17 for the refrigerating chamber is supplied into the refrigerating chamber 3 through the outlet duct 24 and then supplied into the vegetable compartment 5. The circulation is such that the refrigerator chamber 22 is returned to the refrigerator compartment 22.

Further, although not shown, the back wall of the vegetable compartment 5 in the refrigerator body 1 is provided with a refrigerator compartment for a freezer compartment located on the left side of the refrigerator compartment 22 for a refrigerator compartment. A freezing room cooler, a freezing room blower fan device, and the like are provided in the freezing room cooler room so as to supply cold air to the upper and lower freezing rooms 4 and 6 (and the ice making room). It has become. A control unit 21 on which a microcomputer or the like for controlling the entire refrigerator is mounted is provided in a portion near the lower part of the back surface of the refrigerator body 1.

By the way, as described above, the heat insulating partition wall 7 is composed of a front wall portion 26 and a rear wall portion 27. Among them, the rear wall portion 27 is configured by accommodating a heat insulating material in an outer shell made of, for example, a synthetic resin. Hereinafter, the configuration of the front wall portion 26 will be described in detail with reference to FIG. The front wall portion 26 in the present embodiment includes an outer shell body 28 made of synthetic resin, a front plate 29, a magnetic member 30, the heat radiation pipe 20, and a vacuum heat insulating panel 31 as a heat insulating member. Will be done.

The outer shell body 28 has a square tubular shape (box shape) having a rectangular cross section extending in the left-right direction and has an opening on the front surface side, and is provided so as to be hung between the left and right side wall portions of the heat insulating box body 2. The front plate 29 is made of a synthetic resin such as polypropylene in a thin plate shape, and is arranged so as to close the front surface of the outer shell body 28. The magnetic member 30 is for attracting the magnet gasket 25 to the front surface of the front plate 29. For example, the magnetic member 30 is made of a thin plate-shaped plastic magnet (or a thin plate-shaped iron plate) long in the lateral direction, and is on the back surface side of the front plate 29. Two pieces are arranged at the top and bottom.

As a result, the front plate 29 is arranged in the front opening of the heat insulating box 2, and the front surface (surface) thereof is used as the suction surface of the magnet gasket 25. The front plate 29 is colored in the same color as the cabinet of the refrigerator body 1 (the outer surface of the outer box 2b and the front surface of each of the doors 10, 11, 13, and 15). Alternatively, it may be colored in a dark color having a low lightness such as black or brown. Further, although not shown, on the back surface side of the front plate 29, for example, reinforcing ribs extending vertically and horizontally are integrally formed in order to secure the required strength (rigidity).

The heat radiation pipe 20 extends in the left-right direction on the back surface side of the front plate 29 (magnetic member 30), and is arranged in a form folded back on the right end side in the drawing. Although not shown in detail, the vacuum heat insulating panel 31 has a core material obtained by compression-curing a laminated material of inorganic fibers such as glass wool, which is stored in a bag of a synthetic resin film such as polyethylene having gas barrier performance, and then inside. Is vacuum exhausted and sealed under reduced pressure. In this case, the vacuum heat insulating panel 31 is configured in a rectangular block shape (square columnar shape) that is substantially closely fitted in the outer shell body 28.

With this, the front wall portion 26 is assembled as follows. That is, the vacuum heat insulating panel 31 is housed in the outer shell body 28 attached to the heat insulating box body 2, and the heat radiation pipe 20 is arranged at a predetermined position on the front surface side of the vacuum heat insulating panel 31. On the other hand, the front plate 29 has the magnetic member 30 arranged on the back surface side thereof so as to close the front surface of the outer shell body 28, and the left and right end portions thereof are on the left and right side wall portions of the heat insulating box body 2. For example, it can be attached by screwing. As a result, the heat radiating pipe 20 is closely arranged on the back surface side of the front plate 29, and the vacuum heat insulating panel 31 is closely arranged on the back surface side of the heat radiating pipe 20.

Next, the action / effect of the above configuration will be described. In the front wall portion 26 of the heat insulating partition wall 7 of the present embodiment, the heat of the heat radiation pipe 20 for preventing dew condensation is transferred to the front plate 29, so that dew condensation is prevented on the front surface of the front plate 29. In this case, since the vacuum heat insulating panel 31 as a heat insulating member is arranged at the rear of the heat radiating pipe 20, heat transfer from the heat radiating pipe 20 to the rear side is prevented.

Since the front plate 29 is made of a synthetic resin having poor heat transferability instead of the conventional front plate made of an iron plate, heat transfer to the storage chambers 3 and 4 and the like can be suppressed. As a result, according to the present embodiment, the one provided with the heat insulating partition wall 7 (front wall portion 26) for partitioning the storage chambers 3 and 4, while preventing dew condensation on the front plate 29 of the heat insulating partition wall 7. It is possible to suppress the invasion of heat into the storage chambers 3 and 4, and it is possible to prevent the cooling property in the storage chambers 3 and 4 from being lowered.

Further, since the magnetic member 30 is arranged on the back surface side of the front plate 29, it can function as a suction surface of the magnet gasket 25. In the present embodiment, the reinforcing ribs are integrally provided on the back surface side of the front plate 29, so that the front plate 29 made of synthetic resin may have a weaker mechanical strength than the metal plate. However, the required strength (rigidity) can be ensured by the reinforcing ribs. Moreover, since the heat insulating member is composed of the vacuum heat insulating panel 31, it is possible to obtain excellent heat insulating properties as compared with a foamed heat insulating material or the like.

In the present embodiment, the front plate 29 is configured to be colored in the same color as the cabinet of the refrigerator main body 1. As a result, the color of the front wall 26 of the heat insulating partition wall 7 and the color of the cabinet of the refrigerator body 1 that are seen when the door is opened are similar in color, so that the design has a unified feeling even when the door is opened. It can be made to have an excellent appearance. In particular, by enhancing the visual effect by providing metallic luster or changing the shade by gradation, the difference in the appearance impression that the user receives between the closed state and the open state is reduced, and further. It can be excellent in appearance.

Further, when the front plate 29 made of synthetic resin is configured to be colored in a dark color with low lightness such as black or brown, the front plate 29 made of synthetic resin has a circumstance that stains due to contact with the gasket or rubbing are more likely to be fixed than the iron plate. However, the stains are not noticeable and the appearance can be excellent.

(2) Second to Fourth Embodiments, Other Embodiments FIGS. 3, 4, and 5 show the second, third, and fourth embodiments, respectively, and hereinafter, the above-mentioned first embodiment is shown. The points different from the embodiment will be described. In each of the embodiments described below, the same parts as those in the first embodiment are designated by the same reference numerals and detailed description thereof will be omitted.

FIG. 3 shows the configuration of the front wall portion 41 of the heat insulating partition wall according to the second embodiment. The front wall portion 41 includes an outer shell body 28, a front plate 29, a magnetic member 30, and a heat radiation pipe 20 for preventing dew condensation, and is a heat insulating member arranged at the rear portion (inside the outer shell body 28) of the heat radiation pipe 20. The vacuum heat insulating panel 31 and the foamed heat insulating material 42 are included. The foamed heat insulating material 42 is configured in a box shape having an open front surface from, for example, urethane foam or the like, and is housed in the outer shell body 28 with the vacuum heat insulating panel 31 densely housed inside.

Here, the vacuum heat insulating panel 31 has a situation that the synthetic resin film on the surface is easily torn, but by housing the vacuum heat insulating panel 31 in the foamed heat insulating material 42, the vacuum heat insulating panel 31 is protected and fixed (filling of a gap). be able to. According to this second embodiment, in addition to obtaining excellent heat insulating performance as a heat insulating member, it is possible to further improve the handleability, durability and the like of the heat insulating member. Similar to the first embodiment, it is possible to obtain effects such as suppressing heat intrusion into the storage chambers 3 and 4 while preventing dew condensation on the front plate 29 of the front wall portion 41. Of course.

FIG. 4 shows the configuration of the front wall portion 51 of the heat insulating partition wall according to the third embodiment. The front wall portion 51 includes an outer shell body 28, a front plate 29, a magnetic member 30, and a heat radiation pipe 20 for preventing dew condensation, and is located at the rear portion (inside the outer shell body 28) of the heat radiation pipe 20 to provide a heat insulating member. The vacuum insulation panel 52 is provided. At this time, a concave groove 52a in which the heat dissipation pipe 20 is arranged is formed on the front surface side of the vacuum heat insulating panel 52.

According to the third embodiment, as in the first embodiment, while preventing dew condensation on the front plate 29 of the front wall portion 51, heat intrusion into the storage chambers 3 and 4 is suppressed. The effect such as being able to be obtained can be obtained. Since the heat dissipation pipe 20 is positioned and fixed so as to fit into the concave groove 52a on the front surface side of the vacuum heat insulating panel 52, the assemblability of the front wall portion 51 can be improved. Further, it is possible to prevent the heat radiating pipe 20 from rubbing against the vacuum heat insulating panel 52, and it is possible to prevent the synthetic resin film on the surface from being torn.

FIG. 5 shows the configuration of the front wall portion 61 of the heat insulating partition wall according to the fourth embodiment. The front wall portion 61 includes an outer shell body 28, a front plate 29, a metal reinforcing plate 62, a heat radiation pipe 20 for preventing dew condensation, and a vacuum heat insulating panel 31 as a heat insulating member. The reinforcing plate 62 is made of, for example, an iron plate, is provided on the back surface side of the front plate 29, and also serves as a magnetic member for attracting the magnet gasket 25. The front plate 29 is omitted from the reinforcing ribs on the back surface side. Further, a magnetic member 30 made of a magnet may be provided.

According to the fourth embodiment, as in the first embodiment, while preventing dew condensation on the front plate 29 of the front wall portion 61, heat intrusion into the storage chambers 3 and 4 is suppressed. The effect such as being able to be obtained can be obtained. Then, the front plate 29 can be reinforced by the metal reinforcing plate 62, and the required strength (rigidity) can be secured while the front plate 29 has a thin plate shape.

It should be noted that the present invention is not limited to the above-described embodiment, and although not shown, the following extensions and changes are possible, for example. That is, a recess (not shown) may be formed on the back surface side of the front plate 29, and the magnetic member 30 may be arranged in the recess. According to this, the distance between the magnetic member 30 and the magnet gasket 25 can be shortened, the magnetic force applied can be strengthened, and the adhesion can be improved. At the same time, the concave portion becomes the positioning of the magnetic member 30, and the manufacturability can be improved.

Further, in the above embodiment, the heat insulating partition wall is composed of the front wall portion and the rear wall portion, but it may be composed of one component. In this case, a plate-shaped heat insulating member having a width can be provided in the front and back. The entire heat insulating member may be made of a molded product of foamed heat insulating material. Further, the same can be applied to a heat insulating partition wall extending in the vertical direction. In addition, as for the internal configuration of the refrigerator, it is possible to change the arrangement of each storage room in various ways, and even one cooler may be used. What you get.

In the drawing, 1 is the refrigerator body, 2 is the heat insulating box, 3, 4, 5, 6 are the storage chambers, 7, 8 and 9 are the heat insulating partition walls, 20 is the heat dissipation pipe, 25 is the magnet gasket, 26, 41, 51. , 61 is the front wall part, 27 is the rear wall part, 28 is the outer shell body, 29 is the front plate, 30 is the magnetic member, 31 and 52 are the vacuum heat insulating panel (heat insulating member), and 42 is the foamed heat insulating material (heat insulating member). ), 52a indicates a concave groove, and 62 indicates a reinforcing plate.

Claims (7)

Insulated box with front opening and
It is provided with a heat insulating partition wall that divides the inside of the heat insulating box into a plurality of storage chambers.
The heat insulating partition wall is
An outer shell with an open front and
A front plate made of synthetic resin arranged in the front opening of the heat insulating box so as to close the front surface of the outer shell, and
A heat dissipation pipe for preventing dew condensation, which is arranged on the rear surface side of the front plate,
It is configured to include a heat insulating member arranged at the rear of the heat radiation pipe.
The heat insulating member includes a vacuum heat insulating panel and a foamed heat insulating material made of a molded product and having the same shape as the outer shell, and the vacuum heat insulating panel is housed in a cavity provided in the foamed heat insulating material. A refrigerator housed in the outer shell in the state. The refrigerator according to claim 1, wherein a reinforcing rib is provided on the back surface side of the front plate. The refrigerator according to claim 1 or 2, wherein a metal reinforcing plate is arranged between the front plate and the heat insulating member. The refrigerator according to any one of claims 1 to 3, wherein a concave groove in which the heat dissipation pipe is arranged is formed on the front surface side of the heat insulating member. The refrigerator according to any one of claims 1 to 4, wherein the front plate is colored in the same color as the cabinet color. The refrigerator according to any one of claims 1 to 4, wherein the front plate is darkly colored. The refrigerator according to any one of claims 1 to 6, wherein a recess for arranging a magnetic member is formed in the front plate.

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