JP2023053336A - refrigerator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a refrigerator that can reduce power consumption by a heater for preventing dew condensation and has high-energy saving property.

SOLUTION: A refrigerator includes: a double door (Kannon) type doors for opening and closing a cold room; and a rotary partition body 35 provided in an end of either one of the double door type doors. A second door 72 that is one of the double door type doors includes a dew condensation prevention heater 59 at a lateral surface 321 located on a side provided with the rotary partition body 35.

SELECTED DRAWING: Figure 5

COPYRIGHT: (C)2023,JPO&INPIT

Description

TECHNICAL FIELD The present disclosure relates to refrigerators having double doors with rotating partitions.

Generally, a refrigerator has storage compartments such as a refrigerator compartment, a freezer compartment, and a vegetable compartment that can be freely opened and closed by doors. Each storage room is configured to be openable and closable by a door. In a large-sized refrigerator, the door of the refrigerator compartment is composed of a double door. The double-opening door is provided with a rotating partition that rotates in conjunction with opening or closing either the left or right door. As a result, the gap between the door end surfaces that occurs when the door is closed is closed to ensure airtightness. A heater is attached to the inner surface of the rotary partition to prevent dew condensation from occurring on the surface of the rotary partition (see, for example, Patent Document 1).

However, in the conventional refrigerator as described above, part of the heat from the heater penetrates into the refrigerating compartment via the rotating partition. Therefore, there is a problem that the power consumption of the heater for preventing dew condensation generated on the surface of the rotary partition increases.

JP 2010-249491 A

The present disclosure has been made in view of the conventional problems as described above, and provides a highly energy-saving refrigerator capable of reducing power consumption of a heater for preventing dew condensation.

Specifically, the refrigerator according to an example of the present disclosure includes a refrigerating chamber, a double-opening door composed of a first door and a second door, a rotating partition provided on the first door, and a second door. A heater is provided on a side surface of the side surface where the first door and the second door face each other when the double doors are closed, and the heater has a plurality of divided heating portions. and the watt densities of the plurality of portions are different from each other.

With such a configuration, it is possible to effectively heat the air coming into contact with the rotary partition. As a result, condensation on the rotary partition can be suppressed.

FIG. 1 is a perspective view of a refrigerator according to an example embodiment of the present disclosure. FIG. 2 is a vertical cross-sectional view of a refrigerator according to an example embodiment of the present disclosure. FIG. 3 is a perspective view of a refrigerator with a double door opened according to an example embodiment of the present disclosure. FIG. 4 is a perspective view showing one double door of a refrigerator according to an example embodiment of the present disclosure. FIG. 5 is a cross-sectional view of main parts of a double door and a rotating partition of a refrigerator according to an example of an embodiment of the present disclosure. FIG. 6 is a diagram for explaining the configuration of the heating unit of the refrigerator according to the example of the embodiment of the present disclosure. FIG. 7A is an external perspective view of a rotating partition provided on a double door of a refrigerator according to an example of an embodiment of the present disclosure. FIG. 7B is a diagram of the rotary partition according to the example of the embodiment of the present disclosure as seen from the back side. FIG. 8 is a cross-sectional view showing a cross-section taken along line 8-8 in FIG. 7B of the rotating partition provided in the double door of the refrigerator according to an example of the embodiment of the present disclosure. FIG. 9 is an exploded perspective view showing a rotating partition provided on a double door of a refrigerator according to an example of an embodiment of the present disclosure. FIG. 10 is another exploded perspective view showing a rotating partition provided on the double door of the refrigerator according to the example of the embodiment of the present disclosure. FIG. 11 is a cross-sectional view of main parts of a double door and a rotating partition in Modification 1 of the embodiment of the present disclosure. FIG. 12 is a cross-sectional view of main parts of a double door and a rotating partition in Modification 2 of the embodiment of the present disclosure.

Hereinafter, examples of embodiments of the present disclosure will be described with reference to the drawings. It should be noted that the present disclosure is not limited by the following embodiments.

(Embodiment)
1 is a perspective view of a refrigerator according to an embodiment of the present disclosure, FIG. 2 is a longitudinal sectional view of a refrigerator according to an example of an embodiment of the present disclosure, and FIG. 3 is an example of an embodiment of the present disclosure. FIG. 2 is a perspective view of a refrigerator with a double-door door opened;

(1. Overall configuration of refrigerator)
First, the overall configuration of a refrigerator 100 according to an example embodiment of the present disclosure will be described with reference to FIGS. 1 to 3. FIG. A refrigerator 100 according to an example embodiment of the present disclosure includes a refrigerator body 1 with an open front. A refrigerator main body 1 has an outer box 2 made of metal, an inner box 3 made of hard resin, and a foamed heat insulating material 4 foam-filled between the outer box 2 and the inner box 3. - 特許庁The interior of the inner box 3 is partitioned into a plurality of storage compartments by partition plates 5, 6 and the like. Further, each storage compartment of the refrigerator main body 1 is provided with a door that employs the same heat insulating structure as that of the refrigerator main body 1 . Each door is configured to be openable and closable.

A plurality of storage compartments formed in the refrigerator main body 1 include a refrigerating compartment 14 at the top, a switching compartment 15 provided below the refrigerating compartment 14 capable of switching between temperature zones, and an ice making compartment 16 provided beside it. , a freezer compartment 18 provided below the switching compartment 15 and the ice making compartment 16, and a vegetable compartment 17 provided at the bottom.

The refrigerator compartment 14 has a double door 7. - 特許庁The switching compartment 15, the ice making compartment 16, the vegetable compartment 17, and the freezer compartment 18 are provided with drawer-type doors 88, 9, 10, and 11, respectively.

The refrigerator main body 1 also has a cooling chamber 19 on the back surface of the freezing chamber 18 . The cooling chamber 19 is provided with a cooler 20 for generating cool air and a cooling fan 21 for supplying cool air to each storage compartment. A defrosting section 22 composed of a glass tube heater or the like is provided below the cooler 20 .

The cooler 20 comprises a refrigeration cycle in which a compressor 23, a condenser (not shown), a heat radiation pipe (not shown) for heat radiation, and a capillary tube (not shown) are connected in a ring. there is The cooler 20 cools the interior of the cooling chamber 19 by circulating the refrigerant compressed by the compressor 23 within the refrigeration cycle.

Also, the cooling fan 21 is provided above the cooler 20 . The cooling fan 21 is connected to the refrigerator compartment 14, the freezer compartment 18, and the vegetable compartment 17 via a refrigerator compartment duct 24, a freezer compartment duct 25, and a vegetable compartment duct (not shown) that are connected to the downstream side of the cooling fan. Supply cold air in 19. Each storage compartment is cooled by this cold air.

As shown in FIGS. 2 and 3, a plurality of shelf boards 27 are detachably provided in the refrigerator compartment 14 . The space in the refrigerator compartment 14 is partitioned into a plurality of upper and lower spaces by the plurality of shelf plates 27 . In addition, as shown in FIG. 2, the refrigerator compartment 14 is provided with a low-temperature storage compartment such as a partial freezer compartment 28 and a chilled compartment 29 at its lower portion.

Note that the refrigerator compartment 14 is cooled to, for example, 1° C. to 5° C., which is a non-freezing temperature. A partial freezer chamber 28 in the refrigerating chamber 14 is cooled, for example, to -2°C to -3°C suitable for micro-freezing storage. A chilled chamber 29 in the refrigerating chamber 14 is cooled to a temperature of about 1° C., which is lower than that of the refrigerating chamber 14 and slightly higher than that of the partial freezer chamber 28, for example.

(2. Configuration of double doors)
Next, the configuration of the double door 7 will be described.

FIG. 4 is a perspective view showing one double-opening door of a refrigerator according to an example of an embodiment of the present disclosure, and FIG. 5 is a double-opening door and a rotating partition of a refrigerator according to an example of an embodiment of the present disclosure. is a cross-sectional view of the main part.

The double door 7 of the refrigerator compartment 14 (see FIG. 3) consists of a first door 71 and a second door 72 . The first door 71 and the second door 72 are rotatably supported by the refrigerator main body 1 via door hinges 13 .

FIG. 4 shows a first door 71 as an example of the double door 7 . The first door 71 has a space surrounded by an inner door frame 31 made of resin, an outer door frame 32 made of resin, and an exterior plate 33 (see FIG. 5) such as a glass plate that constitutes the door surface. It is filled with a door foam insulation material 34 such as hard urethane foam.

One of the double doors 7, in this embodiment, on the free end side of the narrow first door 71, is a gap between the side surfaces 321 of each of the first door 71 and the second door 72 that is generated when the door is closed. A strip-shaped elongated rotating partition 35 is provided to close the . A wide second door 72 on the other side of the double door 7 is provided with a display section 36 for displaying the operating state of the refrigerator 100, etc., as shown in FIG. 1, for example.

Each of the first door 71 and the second door 72 has gaskets 71 a and 72 a around the door inner frame 31 . The gaskets 71 a and 72 a are resin members for closing the gap between the double door 7 and the refrigerator main body 1 or the rotary partition 35 . At least part of the gaskets 71a and 72a facing the rotary partition 35 is provided with a magnet. Moreover, the rotating partition 35 has magnets in at least part of the portions facing the first door 71 and the second door 72 respectively. The magnets provided in the gaskets 71a and 72a and the magnets provided in the rotary partition 35 are magnetically attracted to each other, so that the gaskets 71a and 72a and the rotary partition 35 are in close contact with each other. Close any gaps between them.

The second door 72 not provided with the rotary partition 35 is provided with a dew condensation prevention heater 59 as shown in FIG. The dew condensation prevention heater 59 heats the air in the space S defined by the side surfaces 321 of the first door 71 and the second door 72 and the rotating partition 35 when the doors are closed. Department. The dew condensation prevention heater 59 is provided at the end of the second door 72 on the side where the rotary partition 35 is provided. More specifically, it is provided on the side surface 321 of the door outer frame 32 of the second door 72 on the side facing the first door 71 and the second door 72 of the double door 7 when the door is closed. The dew condensation prevention heater 59 is attached and fixed to the inner surface of the side surface 321 of the door outer frame 32 of the second door 72 (the side of the space filled with the door foam insulation material 34) with a tape 61 having thermal conductivity. It is The tape 61 covers approximately half of the inner surface of the side surface 321 of the door outer frame 32 on the storage compartment (refrigerating compartment 14) side. The tape 61 covers substantially the entire length of the inner surface of the side surface 321 in the longitudinal direction. The tape 61 is, for example, an aluminum tape.

The thermal conductivity of at least the side surface 321 of the door outer frame 32 depends on the outer shell of the rotary partition 35 (the storage compartment side outer shell member 47 or the outside air side outer shell member 48, which will be described later), or the heat insulating material (which will be described later). , the molded heat insulating member 49 or the foam heat insulating material for the rotating partition 50).

Next, the dew condensation prevention heater 59 will be described.

FIG. 6 is a diagram for explaining the configuration of the heating unit of the refrigerator according to the embodiment of the present disclosure. 6, the dew condensation prevention heater 59 includes a heating portion (heater) 591, a lead wire (electric wire) 592 for supplying electricity to the heating portion (heater) 591, and the heating portion 591 and the lead wire 592. Switching portions 593a and 593b for electrical connection are provided.

The switching parts 593a and 593b are arranged near the center of the double door 7 in the longitudinal direction. The heating portion 591 extends above the switching portion 593a along the longitudinal direction of the double-opening door 7 (the direction indicated by the arrow in FIG. 6) and is folded back near the upper end of the double-opening door 7. As shown in FIG. The heating part 591 is further arranged over substantially the entire longitudinal length of the double-opening door 7 toward the lower end of the double-opening door 7 , and is folded back near the lower end of the double-opening door 7 to extend the length of the double-opening door 7 . It extends upward again along the direction and is connected to the switching portion 593b. The lead wires 592 are arranged one by one from each of the switching portions 593a and 593b so as to extend above the switching portion 593a along the longitudinal direction of the double door 7. As shown in FIG.

More specifically, as shown in FIG. 6, the heating portion 591 includes a portion d having a watt density W1 and a length L1 arranged on the lead wire 592 side of the switching portion 593a, and a portion d connected to the portion d and extending upward. It has an inverted U-shaped portion e with a length L2 at an extended watt density W2. The heating portion 591 further includes a portion f having a watt density W3 and a length L3 connected to the portion e and extending downward in parallel with the portion d, and a watt density connected to the portion f and provided side by side with the switching portions 593a and 593b. and a portion g of length L4 at W4. The heating portion 591 further includes a portion h having a watt density W5 and a length L5 connected to the portion g and extending downward, and a U-shaped portion having a watt density W6 and a length L6 connected to the portion h and located at the bottom. and the site i of The heating portion 591 further has a portion j having a watt density W7 and a length L7 connected from the portion i and extending upward and connected to the switching portion 593b.

A portion i of the heating portion 591 is positioned below the top surface of the partial freezer chamber 28 or the chilled chamber 29 . The watt density of each portion of the heating portion (heater) 591 in the longitudinal direction of the double-opening door 7 is set so that the lower portion of the double-opening door 7 is the highest. Specifically, at least the watt density W6 is set to be higher than the watt densities W1 to W5 and the watt density W7.

When the dew condensation prevention heater 59 is energized, heat is generated from the portion d to the portion j of the heating portion 591, and the side surface 321 of the double door 7 is heated to a desired temperature along the entire length L. The air in the vicinity of the space S is heated by heating the outer surface of the side surface 321 . Therefore, cold air that causes dew condensation does not come into contact with the rotating partition 35 . As a result, condensation on the rotary partition 35 can be suppressed.

The air in the vicinity of the space S is influenced by the temperature of the partial room and the chilled room built in the lower part of the refrigerating room 14 and set to a temperature range lower than the temperature of the refrigerating room. The lower part is cooled at a lower temperature than the upper part.

However, in the present embodiment, the watt density of each part of the heating part (heater) 591 in the vertical direction of the second door 72 is set so that the lower part of the double door 7 is the highest ( Watt density W1-W5 and Watt density W7<Watt density W6). With such a configuration, the outer surface of the side surface 321 has a substantially uniform temperature. Therefore, the air near the space S also has a substantially uniform temperature in the vertical direction, and the air near the space S can be efficiently heated. As a result, the dew condensation on the rotary partition 35 can be reliably suppressed while reducing the power consumption of the dew condensation prevention heater 59 .

(3. Configuration of Rotating Partition)
Next, the rotating partition 35 provided on the double door 7 will be described. FIG. 7A is an external perspective view of a rotating partition provided on a double door of a refrigerator according to an example of an embodiment of the present disclosure, and FIG. 7B is a rear view of the rotating partition according to an example of an embodiment of the present disclosure. It is the figure seen from the side. FIG. 8 is a cross-sectional view showing a cross section along line 8-8 in FIG. 7B of the refrigerator according to an example of the embodiment of the present disclosure, and FIG. FIG. 10 is another exploded perspective view showing the rotating partition provided on the double door of the refrigerator according to the example of the embodiment of the present disclosure.

The rotating partition 35 is provided on the first door 71 of the double door 7, as described above. Specifically, the upper and lower portions of the rotary partition 35 are pivotally supported on the inner surface of the door inner frame 31 of the first door 71 by a hinge member 46 (see FIG. 5). The rotary partition 35 rotates in conjunction with the opening and closing of the first door 71 .

As shown in FIG. 9 and the like, the rotary partition 35 includes a storage compartment side outer shell member 47 and an outside air side outer shell member 48 which are mainly made of resin as outer shells. The rotating partition 35 is formed in a hollow shape by fitting the opening of the storage compartment side shell member 47 and the opening part of the outside air side shell member 48 . The rotating partition 35 has a molded heat insulating member 49 (see FIGS. 9 and 10) made of polystyrene foam incorporated in the upper end portion of its hollow portion, and most of the rest of the hollow portion is made of urethane foam. It is configured by being filled with a foamed heat insulating material 50 for rotating partitions such as. The foam heat insulating material 50 for the rotary partition is filled through a soft bag member 64 which is an intervening member provided between the storage chamber side outer shell member 47 and the outside air side outer shell member 48 which constitute the outer shell of the rotary partition 35 . It is

The storage compartment side shell member 47 and the outside air side shell member 48 are both made of resin with low thermal conductivity. As shown in FIGS. 7B to 10, the storage compartment side outer shell member 47 is formed with an injection hole 52 for injecting urethane foam at substantially the center in the longitudinal direction, and an air vent hole 53 near the end in the longitudinal direction. is formed. A rotating partition reinforcing plate 55 made of metal is provided on the inner surface of the storage compartment side outer shell member 47 .

The rotating partition reinforcing plate 55 has a plurality of holes 57 distributed over the entire length thereof. The rotary partition reinforcing plate 55 has a hole 66 in a portion facing the injection hole 52 provided in the storage compartment side outer shell member 47 . It also has a hole 57 facing the air vent hole 53 .

As shown in FIG. 10, a ring-shaped seal foam 69 is provided between the injection hole 52 of the storage compartment side outer shell member 47 and the hole 66 of the rotary partition reinforcing plate 55, and the air vent hole 53 and the hole 57 are separated. A rectangular sealing foam 70 is provided between the two.

As shown in FIGS. 9 and 10, the storage chamber side outer member 47 is provided in the soft bag member 64 interposed in the space between the storage chamber side outer member 47 and the outside air side outer member 48 that constitute the outer shell of the rotary partition 35 . An opening hole 65 is provided facing the injection hole 52 and the hole 66 of the rotary partition reinforcing plate 55 .

As shown in FIG. 10, the soft bag member 64 is attached to the rotary partition reinforcing plate 55 via a double-sided adhesive 67 between the hole 66 of the rotary partition reinforcing plate 55 and the opening hole 65 of the soft bag member 64. Fixed. The soft bag member 64 is also fixed to the rotating partition reinforcing plate 55 via a double-sided adhesive 68 in the vicinity of the end portion thereof.

The central portion of the double-sided adhesive 67 has a gap as shown in FIG. With such a configuration, when the foamed heat insulating material 50 for the rotary partition is filled from the injection hole 52, the soft bag member 64 is reliably filled with the foamed heat insulating material 50 for the rotary partition (see FIG. 8). .

The end of the soft bag member 64 is provided with an opening for air release. As a result, unnecessary air at the time of filling and foaming the foamed heat insulating material 50 for the rotating partition body is discharged to the outside from the air vent hole 53 of the storage compartment side outer shell member 47 via the seal foam 70 (see FIG. 10). .

The upper end of the rotary partition 35 is covered with a cap 62 (see FIG. 9). The lower end of the rotating partition 35 is closed by fitting the lower side of the opening of the storage compartment side shell member 47 and the lower side of the opening of the outside air side shell member 48 .

The buffer sheet 54 is attached to the storage compartment side outer member 47 so as to cover at least the injection hole 52 and the air vent hole 53 . After the rotary partition 35 is filled with the foamed heat insulating material 50 for the rotary partition and foamed, the buffer sheet 54 is provided on the storage chamber side surface of the storage chamber side outer shell member 47 so as to close the injection hole 52 and the air vent hole 53 . be pasted on.

In this embodiment, the rotating partition 35 is not provided with a heating portion.

Next, functions and effects of refrigerator 100 configured as described above will be described.

Refrigerant compressed by the compressor 23 constituting the refrigerating cycle radiates heat in the condenser, is decompressed in the capillary tube, absorbs heat in the cooler 20, and returns to the compressor 23 again. Cool air generated by cooler 20 is supplied from cooling fan 21 through ducts to refrigerating compartment 14, switching compartment 15, ice making compartment 16, vegetable compartment 17, and freezing compartment 18 in refrigerator main body 1 to cool each storage compartment. Cool to the desired temperature.

Refrigerator 100 of the present embodiment includes dew condensation prevention heater 59 for heating the side surface of second door 72 of double door 7 . With such a configuration, the air in the gap between the door end surfaces of the first door 71 and the second door 72 generated when the doors are closed is heated. Therefore, with such a configuration, cold air does not come into contact with the rotary partition 35, and dew condensation on the rotary partition 35 can be suppressed.

As shown in FIG. 5 , the gap between the second door 72 on the side without the rotating partition 35 and the rotating partition 35 is between the first door 71 on the side with the rotating partition 35 and the rotating partition 35 . larger than the gap between With such a configuration, the side surface 321 of the second door 72 tends to have a lower temperature than the side surface 321 of the first door 71 . With such a configuration, in the present embodiment, the dew condensation prevention heater 59 is provided on the second door 72, which tends to reach a low temperature.

In addition, the second door 72 is provided with a dew condensation prevention heater 59 that heats, for example, a substantially half area of the inside of the side surface of the second door 72 . With this configuration, the air in the area near the rotating partition 35 in the space S defined by the side surfaces 321 of the first door 71 and the second door 72 and the rotating partition 35 is effectively added. can be warmed.

Further, the rotary partition 35 itself is not provided with a dew condensation prevention heater. With such a configuration, part of the heat of the dew condensation prevention heater can be prevented from entering the refrigerating compartment 14 via the rotary partition 35 and increasing the temperature inside the refrigerating compartment 14 .

A gasket with low thermal conductivity is provided between the second door 72 and the rotary partition 35 . With such a configuration, it is possible to suppress part of the heat from the dew condensation prevention heater 59 provided on the second door 72 from being transferred to the rotary partition 35 .

Also, the heating portion 591 is divided into a plurality of portions. Also, the heating portion 591 has different watt densities for each of the plurality of portions. With such a configuration, the air in the gap between the end surfaces of the first door 71 and the second door 72 of the double door 7 can be efficiently heated according to the temperature distribution in the refrigerator compartment 14 . As a result, the power consumption of the dew condensation prevention heater 59 can be reduced.

In this embodiment, a dew condensation prevention heater 59 is provided over substantially the entire length of the double door 7 in the longitudinal direction. In this embodiment, the watt density of each part of the heating part (heater) 591 is set so that the temperature of the lower part of the double door 7 is the highest. However, the refrigerator 100 of the present embodiment is not limited to such a configuration, and for example, the dew condensation prevention heater 59 may be provided in the substantially lower half area of the double door 7 in the longitudinal direction. With such a configuration, the heating amount of the lower portion of the double door 7 can be increased without finely setting the watt density of the heating portion (heater) 591 . With such a configuration, an inexpensive heater can be used as the dew condensation prevention heater 59 . The thermal conductivity of at least the side surface 321 of the door outer frame 32 depends on the outer shell of the rotating partition 35 (the storage compartment side outer shell member 47 or the outside air side outer shell member 48) or the heat insulating material (the molded heat insulating member 49, Alternatively, the thermal conductivity is higher than that of the foamed heat insulating material 50) for the rotary partition. With such a configuration, the heat of the dew condensation prevention heater 59 can be efficiently conducted to the side surface 321 . Therefore, with such a configuration, the air coming into contact with the rotary partition 35 can be effectively heated.

Also, the thermal conductivity of the outer shell of the rotary partition 35 (the storage chamber side outer shell member 47 or the outside air side outer shell member 48) or the heat insulating material (the molded heat insulating member 49 or the rotating partition foam heat insulating material 50) is lower than the thermal conductivity of the door outer frame 32 . With such a configuration, it is possible to suppress part of the heat from the dew condensation prevention heater 59 provided on the second door 72 from being transferred to the refrigerator compartment 14 via the rotary partition 35 .

In addition, the rotating partition 35 is configured such that the foam heat insulating material 50 for rotating partition is filled between the storage chamber side outer member 47 and the outside air side outer member 48 via the soft bag member 64 as an intervening member. It is With such a configuration, the heat insulating property of the rotary partition 35 is significantly higher than that of the heat insulating material of the rotating partition 35, which is made of expanded polystyrene. Therefore, it is possible to effectively suppress outside air heat from entering the refrigerator compartment 14 via the rotary partition 35 .

In the present embodiment, the rotary partition 35 has an outer shell filled with the rotary partition foam heat insulating material 50 via the soft bag member 64. However, the configuration is limited to this configuration. Instead, it may be a rotating partition in which foamed polystyrene is provided inside the outer shell via a soft bag member 64 .

Further, in the rotary partition 35, when the foamed heat insulating material 50 for the rotary partition is filled vertically, in the conventional structure, the storage chamber side outer member 47 and the outside air side outer member 48 are engaged by the foaming pressure. The foamed heat insulating material 50 for the rotary partition is likely to leak from the mated portion. However, in this embodiment, the rotary partition 35 is interposed between the storage chamber side outer member 47 and the outside air side outer member 48 via the soft bag member 64 as an intervening member. 50 is filled and configured. With such a configuration, it is possible to reliably suppress leakage of the rotary partition foam heat insulating material 50 from the portion where the storage compartment side outer shell member 47 and the outside air side outer shell member 48 are fitted. Therefore, with such a configuration, it is possible to obtain the rotary partition 35 with improved heat insulation.

Furthermore, a soft bag member 64 as an intervening member arranged between the storage chamber side outer shell member 47 and the outside air side outer shell member 48 is used to form the rotary partition foam heat insulating material 50 and the rotary partition 35. The bonding strength between the room-side outer shell member 47 and the outside-air-side outer shell member 48 is relaxed, and warpage and deformation of the rotary partition 35 due to the temperature difference between cold and heat can be suppressed.

A ring-shaped seal foam 69 is arranged between the injection hole 52 of the storage compartment side outer shell member 47 and the hole 66 of the rotary partition reinforcing plate 55 . A rectangular sealing foam 70 is arranged between the air vent hole 53 and the hole 57 . Further, the storage compartment side outer shell member 47 and the rotating partition reinforcing plate 55 are fixed by claws 56 . With such a configuration, it is possible to more reliably fill the rotary partition foam heat insulating material 50 into the rotary partition 35 through the soft bag member 64 .

In addition, the soft bag member 64 interposed in the space between the storage compartment side shell member 47 and the outside air side shell member 48, which constitutes the shell of the rotary partition 35, rotates with the injection hole 52 of the storage compartment side shell member 47. An opening hole 65 is provided facing the hole 66 of the partition reinforcing plate 55 . The soft bag member 64 is fixed to the rotary partition reinforcing plate 55 with a double-sided adhesive 67 between the hole 66 of the rotary partition reinforcing plate 55 and the opening hole 65 of the soft bag member 64 . With such a configuration, it is possible to more reliably fill the inside of the rotating partition 35 with the foam heat insulating material 50 for the rotating partition through the soft bag member 64 .

The upper and lower portions of the rotating partition 35 are pivotally connected to the first door 71 by means of hinge members 46, and the portion where the hinge members 46 are installed is provided with a molded heat insulating member 49 made of polystyrene foam. That is, the vicinity of the hinge member 46 having a complicated structure, such as the shaft support portion 46a, is formed of the molded heat insulating member 49. As shown in FIG. With such a configuration, the space between the storage compartment side outer shell member 47 and the outside air side outer shell member 48 can have a simple structure. Also, with such a configuration. The flexible bag member 64 can have a simple rectangular shape. Therefore, with such a configuration, it is possible to eliminate leakage and insufficient filling of the foamed heat insulating material 50 for the rotary partition in the vicinity of the hinge member 46 . As a result, the rotation operation of the rotary partition 35 can be stabilized.

Further, the rotating partition 35 is configured by providing a rotating partition reinforcing plate 55 made of metal on the inner surface of the storage compartment side outer shell member 47 . With such a configuration, it is possible to prevent deformation caused by heat shrinkage of the foamed heat insulating material 50 for the rotary partition, and to further improve the energy saving performance by increasing the sealing performance when the door is closed.

Further, the rotating partition foam heat insulating material 50 in the rotating partition 35 is in contact with the rotating partition reinforcing plate 55 via the soft bag member 64 . With such a configuration, the rotating partition insulating foam material 50 and the rotating partition reinforcing plate 55 are in indirect contact, and the rotating partition reinforcing plate 55 is caused by thermal contraction of the rotating partition insulating foam material 50. can suppress the direct deformation of

In addition, the rotary partition reinforcing plate 55 has a plurality of holes in its longitudinal direction, including the holes facing the injection hole 52 and the air vent hole 53 of the foam heat insulating material 50 for the rotary partition provided in the storage chamber side outer shell member 47. A hole 57 is formed. With such a configuration, it is possible to inject the foamed heat insulating material 50 for the rotary partition to be filled in the soft bag member 64 from the injection hole 52 provided in the storage chamber side outer shell member 47, and the rotary partition reinforcing plate 55 can be made lighter. Therefore, with such a configuration, the weight of the rotary partition 35 itself can be reduced, the rotary operation of the rotary partition 35 is stabilized, and the inertial force of the rotary partition 35 generated during rotation is reduced, so that collision noises and the like can be reduced. becomes less.

Moreover, the rotary partition 35 has a rectangular shape. With such a configuration, a good heat insulation effect can be exhibited over the entire left and right sides, and the heat insulation effect can be enhanced.

In the present embodiment, the intervening member interposed between the storage chamber side outer member 47 and the outside air side outer member 48, which constitute the outer shell of the rotary partition 35, is configured by the soft bag member 64 as an example. However, the intervening member is not limited to this, and may be, for example, a blow-molded member, application of a release material, or attachment of a release tape or the like.

Further, in the present embodiment, the storage chamber side outer member 47 and the outside air side outer member 48 are made of a resin having low thermal conductivity, and a magnet is embedded inside the rotary partition 35. However, without being limited to this, a magnetic metal plate may be provided inside the rotary partition 35 in place of the magnet 58 . Also, the outside-air-side outer shell member 48 may be made of a metal plate.

In this case, the space for arranging the magnet inside the rotary partition 35 can be filled with the foamed heat insulating material 50 for the rotary partition through the soft bag member 64, thereby improving heat insulation and increasing the strength of the rotary partition 35. be able to. In this case, by using an iron plate for the storage room side outer shell member, the rotating partition reinforcing plate 55 provided in the storage room side outer shell member 47 can be made unnecessary or thinned, resulting in an optimum balance of heat insulation, strength and cost. can be achieved.

Further, in the present embodiment, an example has been described in which the molded heat insulating member 49 made of expanded polystyrene is provided in the vicinity of the hinge member at the upper end of the rotary partition 35. However, the present invention is not limited to this. Almost the entire interior of the rotary partition 35 , including the vicinity of the hinge members at the upper and lower ends of the partition 35 , may be filled with the foamed heat insulating material 50 for the rotary partition via a soft bag member 64 .

In this case, it is possible to obtain effects such as an improvement in heat insulation performance and strength due to an increase in the filling rate of urethane foam, and a cost reduction due to the need for the molded heat insulation member 49 made of expanded polystyrene.

<Modification 1>
FIG. 11 is a cross-sectional view of main parts of a double door and a rotating partition of a refrigerator according to Modification 1 of the embodiment of the present disclosure.

The second door 72 that does not have the rotating partition 35 has a dew condensation prevention heater 59 on the side surface 321 of the door outer frame 32 (see FIG. 4) on the side facing the double door 7 when the door is closed. I have. The tape 61 for fixing the dew condensation prevention heater 59 covers almost the entire inner surface of the side surface 321 of the door outer frame 32 .

With such a configuration, the area heated by the dew condensation prevention heater 59 can be increased, so that the air in the vicinity of the rotary partition 35 can be heated more effectively. In addition, since the tape 61 covers almost the entire inner surface of the side surface 321 of the door outer frame 32, the attachment area of the dew condensation prevention heater 59 is increased, and the working efficiency of attaching the dew condensation prevention heater 59 is improved. be able to.

<Modification 2>
FIG. 12 is a cross-sectional view of main parts of a double door and a rotating partition of a refrigerator according to Modification 2 of the embodiment of the present disclosure.

Each of the first door 71 and the second door 72 of the double-opening door 7 has a dew condensation prevention heater 59 on the side surface 321 of the door outer frame 32 (see FIG. 4) on the side facing the double-opening door 7 when the door is closed. It has The tape 61 for fixing the dew condensation prevention heater 59 covers approximately half of the area of the inner surface of the side surface 321 of the door outer frame 32 of each of the first door 71 and the second door 72 on the storage compartment side.

With such a configuration, the area heated by the dew condensation prevention heater 59 is increased, and by heating the air in the area near the rotary partition 35 in the space S, the rotary partition 35 is more effectively heated. It can heat the air around it. In addition, by separately providing the dew condensation prevention heaters 59 for the first door 71 and the second door 72, heaters with suitable watt densities can be attached to the first door 71 and the second door 72, respectively. For example, compared to the case where the dew condensation prevention heater 59 is provided on either one of the first door 71 and the second door 72, there is no need to set the watt density of the dew condensation prevention heater 59 finely. Therefore, with such a configuration, an inexpensive heater can be used as the dew condensation prevention heater 59 .

INDUSTRIAL APPLICABILITY Since the present disclosure can suppress the input to the heating unit for preventing dew condensation on the rotating partition, it can be applied to refrigerators of various types and sizes such as household and commercial use equipped with rotating partitions. can be done.

1 refrigerator main body 2 outer box 3 inner box 4 foam insulation material 5, 6 partition plate 7 double doors 88, 9, 10, 11 door 13 door hinge 14 refrigerator compartment 15 switching compartment 16 ice making compartment 17 vegetable compartment 18 freezer compartment 19 cooling Chamber 20 Cooler 21 Cooling fan 22 Defrosting part 23 Compressor 24 Cold storage duct 25 Freezing compartment duct 27 Shelf board 28 Partial freezer compartment 29 Chilled compartment 31 Door inner frame 32 Door outer frame 321 Side surface 33 Exterior board 34 Foam insulation for door Material 35 Rotating partition 36 Display part 46 Hinge member 46a Axle 47 Storage room side outer shell member 48 Outside air side outer shell member 49 Molded heat insulating member 50 Foamed heat insulating material for rotating partition 52 Injection hole 53 Air vent hole 54 Buffer sheet 55 Rotating partition Reinforcement plate 57, 66 Hole 59 Dew condensation prevention heater 591 Heating part (heater)
592 lead wire (electric wire)
593a, 593b switching part 62 cap 64 soft bag member (intervening member)
65 opening hole 67, 68 double-sided adhesive 69, 70 sealing foam 71 first door 72 second door 71a, 72a gasket 100 refrigerator

The present disclosure relates to refrigerators with double doors.

Specifically, a refrigerator according to an example of the present disclosure includes a refrigerating chamber, a double-opening door composed of a first door and a second door , and a side of the second door, the double-opening door being closed. a heater provided on a side surface of the first door and the second door facing each other in a state in which the heater has a plurality of portions in which the heating portion is divided, and the watt densities of the plurality of portions are different from each other. It is characterized by

With such a configuration, it is possible to provide a highly energy-saving refrigerator capable of reducing the power consumption of the heater for dew condensation prevention .

Claims (9)

a refrigerator and
A double door consisting of a first door and a second door,
a rotating partition provided on the first door;
a heater provided on a side surface of the second door facing the first door and the second door when the double door is closed;
The refrigerator according to claim 1, wherein the heater has a plurality of divided heating portions, and the plurality of portions have different watt densities. 2. The refrigerator according to claim 1, wherein said heater is provided in a substantially half region of said side surface on the refrigerating compartment side. A storage compartment having a temperature range lower than that of the refrigerating compartment is provided below the refrigerating compartment,
3. The refrigerator according to claim 1, wherein the watt density of said heater is set so that the temperature at the bottom of said double door is the highest. Of the side surfaces of the second door, the side surface facing the first door and the second door when the double door is closed is the outer shell of the rotating partition or the rotating partition. 4. The refrigerator according to any one of claims 1 to 3, wherein the refrigerator is made of a resin having a higher thermal conductivity than the provided heat insulating material. Further comprising a second heater provided on a second side surface of the first door facing the first door and the second door when the double door is closed,
5. The second heater according to any one of claims 1 to 4, wherein the second heater has a plurality of divided heating portions, and the watt densities of the plurality of portions are different from each other. refrigerator. 6. The refrigerator according to claim 5, wherein said second heater is provided in a substantially half region of said second side surface on the refrigerator compartment side. A storage compartment having a temperature range lower than that of the refrigerating compartment is provided below the refrigerating compartment,
7. The refrigerator according to claim 5, wherein the watt density of said second heater is set so that the temperature at the bottom of said double door is the highest. Among the side surfaces of the first door, the side surface facing the first door and the second door when the double door is closed is the outer shell of the rotating partition or the rotating partition. 8. The refrigerator according to any one of claims 5 to 7, wherein the refrigerator is made of a resin having a higher thermal conductivity than the provided heat insulating material. The refrigerator according to any one of claims 1 to 8, wherein said first door is narrower in width than said second door.

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