WO2021181608A1

WO2021181608A1 - Refrigerator

Info

Publication number: WO2021181608A1
Application number: PCT/JP2020/010821
Authority: WO
Inventors: 真鎖伸前川; 荒木　正雄
Original assignee: 三菱電機株式会社
Priority date: 2020-03-12
Filing date: 2020-03-12
Publication date: 2021-09-16
Also published as: JPWO2021181608A1; JP7275377B2

Abstract

This refrigerator comprises: a body having a storage chamber with an opening formed on the front side; a first door and second door of the double door type that openably and closably cover the opening; a partition plate that has a heater, is rotatably provided on the first door, and closes the gap between the first door and the second door from the storage chamber side in a state in which the first door and the second door close the opening; a guide member that is provided on the upper surface of the storage chamber and rotates the partition plate; and a first cover member that is provided on the guide member so as to be movable in the vertical direction. The first cover member is lowered to come into contact with the upper end of the partition plate in the state in which the first door and the second door close the opening as compared with a state in which the first door and the second door open the opening, and covers at least a portion of the side of the upper gap formed between the guide member and the upper end of the partition plate, and the back of the upper gap.

Description

refrigerator

This disclosure relates to a refrigerator equipped with a pair of double doors.

Conventionally, a refrigerator equipped with a pair of double doors has been proposed. Such a refrigerator includes a main body having a storage chamber having an opening formed on the front side. In such a refrigerator, the opening on the front side of the storage chamber is movably covered by a pair of double doors. Further, one of the pair of double doors is provided with a partition plate so as to be rotatable around a rotation axis extending in the vertical direction. Hereinafter, among the pair of double doors, the door on the side where the partition plate is provided may be referred to as the first door. Further, of the pair of double doors, the door on the side where the partition plate is not provided may be referred to as a second door.

A refrigerator equipped with a pair of double doors is provided on the upper surface of the storage room and is equipped with a guide member for rotating the partition plate. As a result, when the opening of the storage chamber is closed by the first door and the second door, the upper end portion of the partition plate is guided by the guide member in the storage chamber, and the partition plate rotates. When the opening of the storage chamber is closed by the first door and the second door, the gap between the first door and the second door is closed by the partition plate from the storage chamber side. Further, when the opening of the storage chamber is closed by the first door and the second door, the surface of the first door and the second door on the storage chamber side is in close contact with the peripheral edge of the opening of the storage chamber and the front surface of the partition plate. A gasket is provided.

As mentioned above, the partition plate rotates in the storage room. Therefore, an upper gap is formed between the upper end of the partition plate and the guide member when the opening of the storage chamber is closed by the first door and the second door so that the partition plate can rotate smoothly. A lower gap is formed between the lower end of the partition plate and the lower surface of the storage chamber. For this reason, the gasket of the first door has a fin portion extending toward the second door at a position facing the upper gap and the lower gap when the opening of the storage chamber is closed by the first door and the second door. Is formed. Further, the gasket of the second door has a fin portion extending toward the first door at a position facing the upper gap and the lower gap when the opening of the storage chamber is closed by the first door and the second door. It is formed. Therefore, when the opening of the storage chamber is closed by the first door and the second door, the fin portion of the first door and the fin portion of the second door overlap in front of the upper gap and the lower gap. As a result, the front of the upper gap and the lower gap is blocked by the fin portion of the first door and the fin portion of the second door, and the cold air in the storage chamber is prevented from leaking to the outside of the refrigerator from the upper gap and the lower gap. Will be done.

By the way, the partition plate has a built-in heater in order to suppress dew condensation on the partition plate. Further, in recent years, there has been a demand for a refrigerator to reduce power consumption, and a refrigerator in which the energization rate of the heater is changed according to the temperature and humidity of the air around the refrigerator has also been proposed. The energization rate is the ratio of the energization time in one cycle when the energization time and the rest time are one cycle.

Here, the fin portion of the first door and the fin portion of the second door that block the upper gap are cooled by the cold air that has flowed into the upper gap. Similarly, the fin portion of the first door and the fin portion of the second door that block the front of the lower gap are cooled by the cold air that has flowed into the lower gap. In addition, the temperature of the upper part of the storage chamber is more likely to rise than that of the lower part. Therefore, a large amount of cold air is supplied to the upper part of the storage chamber rather than the lower part. Therefore, cold air is more likely to flow into the upper gap than the lower gap. That is, in a refrigerator equipped with a pair of double doors, the area around the upper gap is cooled by the cold air flowing into the upper gap, and dew condensation is likely to occur around the upper gap.

As one method of suppressing dew condensation due to the cold air flowing into the upper gap, it is conceivable to increase the energization rate of the partition plate to the heater and increase the amount of heat generated by the heater. This is because the fins of the first door and the fins of the second door, which are cooled by the cold air flowing into the upper gap, can be heated by the heat of the heater. However, in this method, the energization rate to the heater becomes large. Therefore, the power consumption of the heater increases, and the power consumption of the refrigerator increases.

Therefore, it has been proposed that a conventional refrigerator is provided with an upper packing extending upward on the upper part of the back surface of the partition plate (see Patent Document 1). In the refrigerator configured in this way, the cold air that tends to flow into the upper gap from behind the upper gap can be blocked by the upper packing. Therefore, in the refrigerator configured in this way, dew condensation due to the cold air flowing into the upper gap can be suppressed as compared with the refrigerator not provided with the upper packing.

Japanese Unexamined Patent Publication No. 2019-032096

In the refrigerator described in Patent Document 1, as described above, the cold air that tends to flow into the upper gap from behind the upper gap can be blocked by the upper packing. However, in the refrigerator described in Patent Document 1, the cold air that tends to flow into the upper gap from the side of the upper gap cannot be blocked by the upper packing. Therefore, in the refrigerator described in Patent Document 1, the inflow of cold air into the upper gap cannot be sufficiently suppressed by the upper packing. Therefore, the refrigerator described in Patent Document 1 has a problem that the increase in power consumption due to the heater has not yet been sufficiently suppressed.

The present disclosure has been made to solve the above-mentioned problems, and an object of the present disclosure is to obtain a refrigerator capable of suppressing dew condensation while suppressing an increase in power consumption due to a heater more than before.

The refrigerator according to the present disclosure has a main body having a storage chamber having an opening formed on the front side, a double door of a Kannon opening type that covers the opening so as to be openable and closable, and a heater. The first door and the second door are rotatably provided on one door, and the gap between the first door and the second door is closed from the storage chamber side in a state where the opening is closed. The first cover includes a partition plate, a guide member provided on the upper surface of the storage chamber to rotate the partition plate, and a first cover member provided on the guide member so as to be movable in the vertical direction. When the first door and the second door are closed, the member is lowered from the state where the first door and the second door are open, and the partition plate is lowered. It contacts the upper end portion of the door and covers at least a part of the side portion of the upper gap formed between the guide member and the upper end portion of the partition plate and the back portion of the upper gap.

In the refrigerator according to the present disclosure, the first cover member suppresses the inflow of cold air into the upper gap. At this time, the first cover member of the refrigerator according to the present disclosure can block the cold air that tends to flow into the upper gap from behind the upper gap, similarly to the conventional upper packing. Further, the first cover member of the refrigerator according to the present disclosure can block the cold air that tends to flow into the upper gap from the side of the upper gap as compared with the conventional upper packing. That is, the first cover member of the refrigerator according to the present disclosure can suppress the inflow of cold air into the upper gap as compared with the conventional upper packing. Therefore, the refrigerator according to the present disclosure can suppress dew condensation while suppressing an increase in power consumption due to the heater as compared with the conventional case.

It is a front view of the refrigerator which concerns on this embodiment. It is an exploded perspective view which shows the structure of the left door of the refrigerator which concerns on this embodiment. It is an exploded perspective view which shows the structure of the right door of the refrigerator which concerns on this embodiment. It is a figure which shows the refrigerant circuit of the refrigerator which concerns on this embodiment. It is a connection diagram of the refrigerant pipe in the refrigerator which concerns on this embodiment. It is a connection diagram of the refrigerant pipe in the modified example of the refrigerator which concerns on this embodiment. It is a vertical sectional view which shows the upper part part of the refrigerator which concerns on this embodiment. It is an exploded view of the partition plate of the refrigerator which concerns on this embodiment. It is sectional drawing of the surface sheet metal which constitutes the partition plate of the refrigerator which concerns on this embodiment, and the heater. It is a perspective view which shows a part of the cord-shaped heater which constitutes the heater of the partition plate of the refrigerator which concerns on this embodiment. It is the figure which looked at the left door and the partition plate of the refrigerator which concerns on this embodiment as seen from the refrigerating room side. FIG. 11 is an enlarged view of part A in FIG. FIG. 11 is an enlarged view of part B in FIG. It is a perspective view which looked at the periphery of the guide member provided on the upper surface of the refrigerating room of the refrigerator which concerns on this embodiment from the lower right front. It is a vertical cross-sectional view which shows the periphery of the guide member provided on the upper surface of the refrigerating room of the refrigerator which concerns on this embodiment. It is a vertical cross-sectional view which shows the periphery of the guide member provided on the upper surface of the refrigerating room of the refrigerator which concerns on this embodiment. It is a vertical cross-sectional view which shows the periphery of the lower end part of the partition plate in the refrigerator which concerns on this embodiment. It is a perspective view of the periphery of the lower end portion of the partition plate in the refrigerator which concerns on this embodiment as seen from the refrigerating room side. It is a perspective view of the periphery of the lower end portion of the partition plate in the refrigerator which concerns on this embodiment as seen from the refrigerating room side.

In the following embodiment, an example of the refrigerator according to the present disclosure will be described with reference to the drawings. The refrigerator according to the present disclosure is not limited to the contents described in the following embodiments. Further, in the following drawings, the size of each configuration of the refrigerator according to the present disclosure may be different from the size of each configuration of the refrigerator actually manufactured based on the present disclosure.

Embodiment.
FIG. 1 is a front view of the refrigerator according to the present embodiment.
Hereinafter, the configuration of the refrigerator 100 according to the present embodiment will be described. In the following, when explaining each configuration of the refrigerator 100, terms indicating directions are appropriately used in order to facilitate understanding of each configuration of the refrigerator 100. The term for the direction is, for example, up, down, right, left, front, back, and the like. Further, these directions are the directions when the refrigerator 100 is viewed from the front.

The refrigerator 100 according to the present embodiment includes a main body 101 constituting an outer shell. The main body 101 includes an outer box constituting the outer peripheral surface portion of the main body 101, an inner box constituting the inner peripheral surface portion of the main body 101, and a heat insulating material provided between the outer box and the inner box. There is. The heat insulating material is a foam heat insulating material, a vacuum heat insulating material, or the like. The main body 101 has a storage chamber having an opening formed on the front surface side. In the present embodiment, the inside of the main body 101 is partitioned by a partition wall or the like, and a plurality of storage chambers are provided. Specifically, the main body 101 is provided with a refrigerating room 1, an ice making room 2, a small freezing room 3, a freezing room 4, and a vegetable room 5 as storage rooms.

The refrigerating room 1 is provided at the top of the storage room. The opening of the refrigerator compartment 1 is covered with a double door 6 and a right door 7 which can be opened and closed. Specifically, the left end of the left door 6 is rotatably connected to the main body 101. The right end of the right door 7 is rotatably connected to the main body 101. As a result, the left door 6 and the right door 7 form a double door that covers the opening of the refrigerator compartment 1 so as to be openable and closable. Further, the left door 6 is provided with a partition plate 8 so as to be rotatable around a rotation axis extending in the vertical direction. The partition plate 8 closes the gap between the left door 6 and the right door 7 from the refrigerating chamber 1 side in a state where the left door 6 and the right door 7 close the opening of the refrigerating chamber 1, and the left door 6 The cold air inside the refrigerator 100 is prevented from leaking to the outside of the refrigerator 100 through the gap between the door 7 and the right door 7. Further, the partition plate 8 closes the gap between the left door 6 and the right door 7 from the refrigerating chamber 1 side in a state where the left door 6 and the right door 7 close the opening of the refrigerating chamber 1, and the left The intrusion of air outside the refrigerator 100 into the refrigerating chamber 1 through the gap between the door 6 and the right door 7 is suppressed. The details of the partition plate 8 will be described later.

In the following, of the left door 6 and the right door 7, the door on the side where the partition plate 8 is provided may be referred to as the first door. Further, of the left door 6 and the right door 7, the door on the side where the partition plate 8 is not provided may be referred to as a second door. That is, in the present embodiment, an example is shown in which the left door 6 is the first door and the right door 7 is the second door. The partition plate 8 may be rotatably provided on the right door 7. That is, the right door 7 may be the first door and the left door 6 may be the second door.

Below the refrigerator compartment 1, the ice making chamber 2 and the small freezer compartment 3 are arranged in parallel. The opening of the ice making chamber 2 is covered with a pull-out door so as to be openable and closable. A storage box for storing items stored in the ice making chamber 2 is connected to the door on the ice making chamber 2 side. The opening of the small freezer 3 is covered with a pull-out door so that it can be opened and closed. A storage box for storing items stored in the small freezer 3 is connected to the door on the side of the small freezer 3. A freezing chamber 4 is arranged below the ice making chamber 2 and the small freezing chamber 3. The opening of the freezing chamber 4 is covered with a drawer-type door so as to be openable and closable. A storage box for storing items stored in the freezing chamber 4 is connected to the door on the freezing chamber 4 side. A vegetable compartment 5 is arranged below the freezing chamber 4. The opening of the vegetable compartment 5 is covered with a pull-out door so that it can be opened and closed. A storage box for storing items to be stored in the vegetable compartment 5 is connected to the door on the vegetable compartment 5 side.

The number of storage rooms and the arrangement of each storage room are just examples. Further, the storage room covered by the left door 6 and the right door 7 of the double door type is not limited to the refrigerating room 1, and may be a storage room other than the refrigerating room 1.

Further, the refrigerator 100 is equipped with an outside air temperature sensor 9 and an outside air humidity sensor 10. The outside air temperature sensor 9 detects the outside air temperature, which is the temperature of the outside air of the refrigerator 100. The outside air humidity sensor 10 detects the outside air humidity, which is the humidity of the outside air of the refrigerator 100.

The outside air temperature sensor 9 and the outside air humidity sensor 10 can be installed anywhere as long as they can detect the outside air temperature and the outside air humidity. However, it is desirable that the outside air temperature sensor 9 and the outside air humidity sensor 10 are installed at positions that are not affected by the operation of the refrigerator 100. The position that is not affected by the operation of the refrigerator 100 is, for example, a position that is not affected by the temperature of the condensing pipe provided in the main body 101, which will be described later. In the refrigerator 100 according to the present embodiment, the main body 101 and the left door 6 are connected by a hinge, and a cover member 11 that covers the upper part of the hinge is provided. For example, the outside air temperature sensor 9 and the outside air humidity sensor 10 may be installed inside the cover member 11. The inside of the cover member 11 is a position that is not affected by the temperature of the condensing pipe provided in the main body 101, which will be described later.

FIG. 2 is an exploded perspective view showing the configuration of the left door of the refrigerator according to the present embodiment. FIG. 3 is an exploded perspective view showing the configuration of the right door of the refrigerator according to the present embodiment.
The left door 6 and the right door 7 are composed of resin cap parts 98 on the top, bottom, left, and right. Further, the back surface of the left door 6 is, in other words, the surface of the left door 6 on the refrigerating chamber 1 side is composed of a resin inner plate 87. Further, the back surface of the right door 7 is, in other words, the surface of the right door 7 on the refrigerating chamber 1 side is made of a resin inner plate 88. The front surfaces of the left door 6 and the right door 7 are made of a glass door surface panel 99. That is, the left door 6 is composed of a cap component 98, an inner plate 87, and a door surface panel 99 on six surfaces. The right door 7 is composed of a cap component 98, an inner plate 88, and a door surface panel 99 on six surfaces. Further, a heat insulating material is provided inside the left door 6 and the right door 7. Further, in the present embodiment, the above-mentioned partition plate 8 is rotatably provided on the inner plate 87 of the left door 6. Specifically, in the present embodiment, the upper portion and the lower portion of the partition plate 8 are rotatably fixed to the inner plate 87 by a hinge.

Further, the left door 6 is provided with a setting operation unit 103. The setting operation unit 103 can operate the temperature setting of each storage room, operate the operation mode of the refrigerator 100, and the like. The refrigerator 100 includes, for example, an energy saving mode and a dew-covering countermeasure mode as operation modes. The setting operation unit 103 may be provided on the right door 7.

Further, on the back surface of the inner plate 87 of the left door 6, a gasket 62 provided with a permanent magnet inside is attached. A gasket 64 having a permanent magnet inside is attached to the back surface of the inner plate 88 of the right door 7. When the opening of the refrigerating chamber 1 is closed by the left door 6 and the right door 7, the gasket 62 and the gasket 64 are a portion of the front flange portion 70 of the main body 101 that constitutes the peripheral edge of the opening of the refrigerating chamber 1 and a partition plate. It adheres to the front surface of 8. For the front flange portion 70, refer to FIGS. 5 and 6 described later.

Here, the refrigerator 100 is provided with a guide member 71 for rotating the partition plate 8 on the upper surface of the refrigerating chamber 1, as will be described later in FIGS. 14 and 15. Then, when the opening of the refrigerating chamber 1 is closed by the left door 6 and the right door 7, the upper end portion of the partition plate 8 is guided by the guide member 71 in the refrigerating chamber 1, and the partition plate 8 rotates. As a result, when the opening of the refrigerating chamber 1 is closed by the left door 6 and the right door 7, the gap between the left door 6 and the right door 7 is closed by the partition plate 8 from the refrigerating chamber 1 side. Is done. Therefore, in a state where the opening of the refrigerating chamber 1 is closed by the left door 6 and the right door 7 so that the partition plate 8 can rotate smoothly in the refrigerating chamber 1, the upper end portion of the partition plate 8 and the guide member An upper gap 66 is formed between the door and the door as will be described later in FIGS. 14 and 15. Further, in a state where the opening of the refrigerating chamber 1 is closed by the left door 6 and the right door 7, between the lower end portion of the partition plate 8 and the lower surface portion 38 of the refrigerating chamber 1, as will be described later in FIG. A lower gap 67 is formed.

Therefore, the gasket 62 and the gasket 64 are formed with fin portions that close the front of the upper gap 66 and the front of the lower gap 67. Specifically, when the opening of the refrigerating chamber 1 is closed by the left door 6 and the right door 7, the right side edge of the gasket 62 attached to the left door 6 is on the front surface of the partition plate 8. In close contact. A fin portion 63 and a fin portion 75 are provided on the right side edge portion of the gasket 62. In a state where the opening of the refrigerating chamber 1 is closed by the left door 6 and the right door 7, the fin portion 63 extends toward the right door 7 and faces the upper gap 66. In a state where the opening of the refrigerating chamber 1 is closed by the left door 6 and the right door 7, the fin portion 75 extends toward the right door 7 and faces the lower gap 67. Further, when the opening of the refrigerating chamber 1 is closed by the left door 6 and the right door 7, the left side edge portion of the gasket 64 attached to the right door 7 is in close contact with the front surface of the partition plate 8. A fin portion 65 and a fin portion 76 are provided on the left side edge portion of the gasket 64. In a state where the opening of the refrigerating chamber 1 is closed by the left door 6 and the right door 7, the fin portion 65 extends toward the left door 6 and faces the upper gap 66. In a state where the opening of the refrigerating chamber 1 is closed by the left door 6 and the right door 7, the fin portion 76 extends toward the left door 6 and faces the lower gap 67.

When the opening of the refrigerating chamber 1 is closed by the left door 6 and the right door 7, the fin portion 63 of the gasket 62 and the fin portion 65 of the gasket 64 overlap each other. Further, the upper portion of the fin portion 63 and the upper portion of the fin portion 65 are in close contact with the portion forming the peripheral edge of the opening of the refrigerating chamber 1 in the front flange portion 70 of the main body 101. Further, the lower portion of the fin portion 63 and the lower portion of the fin portion 65 are in close contact with the front surface of the partition plate 8. As a result, when the opening of the refrigerating chamber 1 is closed by the left door 6 and the right door 7, the fin portion 63 and the fin portion 65 close the front of the upper gap 66. Similarly, when the opening of the refrigerating chamber 1 is closed by the left door 6 and the right door 7, the fin portion 75 of the gasket 62 and the fin portion 76 of the gasket 64 overlap each other. Further, the lower portion of the fin portion 75 and the lower portion of the fin portion 76 are in close contact with the portion forming the peripheral edge of the opening of the refrigerating chamber 1 in the front flange portion 70 of the main body 101. Further, the upper portion of the fin portion 75 and the upper portion of the fin portion 76 are in close contact with the front surface of the partition plate 8. As a result, when the opening of the refrigerating chamber 1 is closed by the left door 6 and the right door 7, the fin portion 75 and the fin portion 76 close the front of the lower gap 67.

Further, three pockets 26 for storage are attached to the refrigerating room 1 side of the left door 6 and the right door 7 along the height direction.

FIG. 4 is a diagram showing a refrigerant circuit of the refrigerator according to the present embodiment. FIG. 5 is a connection diagram of a refrigerant pipe in the refrigerator according to the present embodiment. FIG. 6 is a connection diagram of a refrigerant pipe in a modified example of the refrigerator according to the present embodiment. The arrow shown in FIG. 4 indicates the flow of the refrigerant. Further, in the main body 101 of the refrigerator 100 shown in FIGS. 5 and 6, the right front side is the front side.

The refrigerator 100 according to the present embodiment includes a refrigerant circuit 102 in which a refrigerant circulates. As shown in FIG. 4, the refrigerant circuit 102 includes a compressor 12, a fin tube type machine room condenser 13, a left side side condensing pipe 14, a ceiling surface condensing pipe 15, a back condensing pipe 16, and a right side side condensing pipe 17. It includes a dew-prevention pipe 18, a dryer 19, a capillary pipe 20 which is a decompression device, a cooler 21, a muffler 22, and a suction pipe 23. Here, in the machine room condenser 13, the left side side condensing pipe 14, the ceiling surface condensing pipe 15, the back condensing pipe 16, the right side side condensing pipe 17, and the dew condensation prevention pipe 18, the refrigerant flowing inside is condensed. ..

As shown in FIG. 5, the compressor 12, the machine room condenser 13, and the dryer 19 are installed in the machine room 34 provided in the lower part on the back side of the main body 101. The capillary tube 20, the muffler 22, and the suction pipe 23 are provided inside the main body 101. The cooler 21 is formed in the main body 101 and is provided in an air passage communicating with each storage chamber. The left side surface condensing pipe 14 is provided on the left side surface of the main body 101. The ceiling surface condensing pipe 15 is provided on the ceiling 69 of the main body 101. The back condensing pipe 16 is provided on the back surface of the main body 101. The right side side condensing pipe 17 is provided on the right side side of the main body 101. The dew-prevention piping 18 is provided on the front flange portion 70, which is the front surface of the main body 101.

In the present embodiment, the ceiling surface condensing pipe 15 is connected to the left side side condensing pipe 14. However, this is only an example, and for example, the ceiling surface condensing pipe 15 may be connected to the right side side condensing pipe 17. Further, the left side side condensing pipe 14, the ceiling surface condensing pipe 15, the back side condensing pipe 16, and the right side side condensing pipe 17 are fixed to the inner surface of the metal outer box of the main body 101 with aluminum tape.

Further, the refrigerator 100 is provided in the machine room 34 and includes a machine room cooling fan (not shown) for cooling the machine room condenser 13 and the compressor 12. Further, the refrigerator 100 is provided above the cooler 21 and includes an internal cooling fan (not shown) that supplies cold air, which is the air cooled by the cooler 21, to each storage chamber.

A plurality of combinations of the capillary tube 20 and the cooler 21 may be provided. In this case, a shunt such as a three-way valve that distributes the refrigerant to each capillary 20 is installed on the upstream side of each capillary 20. Further, the machine room condenser 13, the ceiling surface condensing pipe 15, and the back condensing pipe 16 may not be provided as long as the condensing capacity can be obtained only by the left side side condensing pipe 14 and the right side side condensing pipe 17. ..

As shown in FIG. 5, the dew condensation prevention pipe 18 includes the peripheral edge of the opening of the refrigerating chamber 1, the peripheral edge of the opening of the ice making chamber 2, the peripheral edge of the opening of the small freezing chamber 3, the peripheral edge of the opening of the freezing chamber 4, and the vegetable compartment. It is arranged on the front flange portion 70 which is the peripheral edge of the opening of 5. That is, the dew condensation prevention pipe 18 is arranged on the front flange portion 70 so as to surround the opening of each storage chamber. Further, the dew condensation prevention pipe 18 is connected to the right side side condensing pipe 17 at the lower part of the right side surface of the main body 101, and is connected to the dryer 19 arranged in the machine room 34 at the lower part of the left side side surface of the main body 101. There is.

When the heat insulating performance of the wall portion of the refrigerating chamber 1 in the main body 101 is good, as shown in FIG. 6, the dew condensation prevention pipe 18 surrounds the openings of each storage chamber except the refrigerating chamber 1. , May be arranged on the front flange portion 70. That is, the dew condensation prevention pipe 18 does not have to be arranged at the portion of the front flange portion 70 that constitutes the peripheral edge of the opening of the refrigerating chamber 1. Here, when the heat insulating performance of the wall portion of the refrigerating chamber 1 in the main body 101 is good, for example, the distance between the inner box and the outer box in the wall portion of the refrigerating chamber 1 in the main body 101. Is large. That is, the case where the heat insulating performance of the wall portion of the refrigerating chamber 1 in the main body 101 is good is, for example, the case where the thickness of the wall portion of the refrigerating chamber 1 in the main body 101 is large. Further, for example, when the heat insulating performance of the wall portion of the refrigerating chamber 1 in the main body 101 is good, the vacuum heat insulating material is provided between the inner box and the outer box at the wall portion of the refrigerating chamber 1 in the main body 101. Is provided. By reducing the length of the dew-prevention pipe 18, the material cost and the manufacturing cost for arranging the dew-prevention pipe 18 can be reduced.

Here, in the structure shown in FIG. 6, of the portions constituting the peripheral edge of the opening of the refrigerating chamber 1 in the front flange portion 70, the dew condensation prevention piping 18 is provided on the upper side, the left side, and the right side of the opening of the refrigerating chamber 1. Is not placed. Therefore, the temperature of the front flange portion 70 around the partition plate 8 is lower than that in the case where the dew condensation prevention pipe 18 is arranged. Therefore, there may be a concern that the temperature of the fin portion 63 and the fin portion 65 that close the front of the upper gap 66 will decrease, and dew condensation will occur around the fin portion 63 and the fin portion 65. However, by constructing the structure around the partition plate 8 as described later, it is possible to suppress the temperature drop of the fin portion 63 and the fin portion 65, and it is possible to suppress the occurrence of dew condensation around the fin portion 63 and the fin portion 65.

FIG. 7 is a vertical cross-sectional view showing an upper portion of the refrigerator according to the present embodiment. In FIG. 7, the left side of the paper is the front side of the refrigerator 100.
A control device 29 is provided on the back side of the main body 101 of the refrigerator 100. The control device 29 is composed of dedicated hardware or a CPU (Central Processing Unit) that executes a program stored in a memory. The CPU is also referred to as a central processing unit, a processing unit, an arithmetic unit, a microprocessor, a microcomputer, or a processor.

When the control device 29 is dedicated hardware, the control device 29 may be, for example, a single circuit, a composite circuit, an ASIC (Application Specific Integrated Circuit), an FPGA (Field-Programmable Gate Array), or a combination thereof. Applicable. Each of the functional units realized by the control device 29 may be realized by individual hardware, or each functional unit may be realized by one hardware.

When the control device 29 is a CPU, each function executed by the control device 29 is realized by software, firmware, or a combination of software and firmware. Software and firmware are written as programs and stored in memory. The CPU realizes each function of the control device 29 by reading and executing the program stored in the memory. Here, the memory is a non-volatile or volatile semiconductor memory such as, for example, RAM, ROM, flash memory, EPROM, or EEPROM.

Note that some of the functions of the control device 29 may be realized by dedicated hardware, and some may be realized by software or firmware.

A refrigerating room temperature sensor 32 for detecting the temperature of the refrigerating room 1 is provided in the refrigerating room 1. Hereinafter, the temperature of the refrigerating chamber 1 will be referred to as a refrigerating chamber temperature. The refrigerating room temperature sensor 32 may be installed at any position in the refrigerating room 1 as long as it can detect the temperature of the refrigerating room. The control device 29 blows or shuts off cold air to the refrigerating room 1 based on the refrigerating room temperature detected by the refrigerating room temperature sensor 32 by opening and closing the baffle 85 of the refrigerating room damper device 31. Here, the refrigerator compartment damper device 31 is provided in the refrigerator compartment outlet air passage 24 formed on the back side of the main body 101 of the refrigerator 100. The refrigerating chamber outlet air passage 24 is an air passage that communicates with the air passage provided with the cooler 21. The refrigerating room temperature detected by the refrigerating room temperature sensor 32 is also used when the control device 29 controls energization of a heater (not shown) installed in the refrigerating room 1 for temperature compensation. Further, the refrigerating room temperature detected by the refrigerating room temperature sensor 32 is also used when the control device 29 controls the energization of the heater 43, which will be described later, installed in the partition plate 8.

Here, the winds 35a to 35e indicated by the white arrows in FIG. 7 are the amount of cold air blown into the refrigerating chamber 1 from the outlets 37a to 37e formed on the inner wall of the refrigerating chamber 1. Is shown. Further, the heats 33a to 33d indicated by the white arrows in FIG. 7 indicate the heat transfer in the refrigerating chamber 1. The heat 33a indicates heat intrusion from the ceiling 69 of the refrigerating chamber 1 into the refrigerating chamber 1. The heat 33b indicates heat intrusion from the left door 6 or the right door 7 into the refrigerating chamber 1. The heat 33c indicates heat intrusion from the back surface of the refrigerating chamber 1 into the refrigerating chamber 1. The heat 33d indicates the transfer of heat from the refrigerating chamber 1 to the ice making chamber 2 or the small freezing chamber 3 whose temperature is lower than that of the refrigerating chamber 1. Regarding other heat intrusions, some heat invades from the side surface of the refrigerating chamber 1, but the illustration is omitted in FIG. 7 because the direction is orthogonal to the paper surface. Further, the size of the white arrow indicating the wind 35a to 35e indicates the size of the air volume. For example, the wind 35a indicates that the air volume is larger than that of the wind 35e. The size of the white arrow indicating the heat 33a to 33d indicates the amount of heat transfer. For example, heat 33a indicates that the amount of heat transfer is larger than that of heat 33d.

The refrigerating room 1 is divided into a plurality of storage areas by a plurality of shelves 30. Further, a chilled chamber 27 having a temperature lower than the temperature of the refrigerating chamber 1 is provided under the lowermost shelf 30 in the refrigerating chamber 1. For example, the temperature of the refrigerating chamber 1 is about 3 ° C., and the temperature of the chilled chamber 27 is about 0 ° C. Further, the chilled chamber 27 is provided with a chilled case 28 for storing food. Further, in each portion of the wall on the back side of the refrigerating room 1 divided by a plurality of shelves 30, air outlets 37a to 37e from which winds 35a to 35e are blown out from the air outlets 24 of the refrigerating room are formed. Has been done.

Here, in the refrigerator compartment 1, the temperature of the upper part where high temperature air tends to collect is more likely to rise than that of the lower part. Further, when the refrigerating room 1 is located at the uppermost part in the storage room as in the present embodiment, the temperature of the upper part of the refrigerating room 1 rises further than that of the lower part due to the heat entering from the ceiling 69. It will be easier. Therefore, as the air volume blown out from the outlets 37a to 37e formed on the inner wall of the refrigerating chamber 1, the air volume at the highest stage is the highest in each portion of the refrigerating chamber 1 partitioned by a plurality of shelves 30. I try to do more. That is, a large amount of cold air is supplied into the refrigerator compartment 1 toward the upper part rather than the lower part. As a result, the temperature distribution of each of the partitioned portions in the refrigerating chamber 1 is kept within a certain width. Therefore, the upper portion of the partition plate 8 tends to be cooled more easily than the lower portion.

Therefore, in the conventional refrigerator, the area around the upper gap 66 is more likely to be cooled than the area around the lower gap 67. In other words, in the conventional refrigerator, the fin portion 63 and the fin portion 65 that close the front of the upper gap 66 are more likely to be cooled than the fin portion 75 and the fin portion 76 that close the front of the lower gap 67. Therefore, in the conventional refrigerator, the energization rate of the partition plate 8 to the heater 43 is increased until the fin portion 63 and the fin portion 65 that block the front of the upper gap 66 can be heated to a temperature at which dew condensation does not occur. However, in this method, the power consumption of the heater 43 increases, and the power consumption of the refrigerator 100 increases. The energization rate is the ratio of the energization time in one cycle when the energization time and the rest time are one cycle. For example, if the energization time is 5 seconds and the pause time is 5 seconds, one cycle is 10 seconds and the energization rate is 50%.

FIG. 8 is an exploded view of the partition plate of the refrigerator according to the present embodiment.
As shown in FIG. 8, the partition plate 8 according to the present embodiment includes a surface sheet metal 42, a heater 43, a surface frame type resin member 44, a heat insulating material 45, a first male screw 46a, a plurality of male screws 46c, and a spring stopper. 47, an upper cover member 48, an upper hinge member 49, a lower cover member 50, a lower hinge member 51, a spring 52, and a back surface resin member 53 are provided.

The surface sheet metal 42 is a member that serves as a front surface portion of the partition plate 8 when the opening of the refrigerating chamber 1 is closed by the left door 6 and the right door 7. That is, the surface sheet metal 42 is a member in which the gasket 62 and the gasket 64 are in close contact with each other when the opening of the refrigerating chamber 1 is closed by the left door 6 and the right door 7. A heater 43 is attached to the back side of the surface sheet metal 42. The detailed configuration of the heater 43 will be described later. A surface frame type resin member 44 is provided on the back side of the heater 43. The surface frame type resin member 44 is attached to the surface sheet metal 42 by hooking a claw (not shown) of the surface frame type resin member 44 on the claw receiving portion 57 of the surface sheet metal 42. The back side resin member 53 is a member that becomes the back surface portion of the partition plate 8 when the opening of the refrigerating chamber 1 is closed by the left door 6 and the right door 7. A substantially cylindrical recess 79 that is recessed downward is formed at the upper end of the back surface side resin member 53. Further, a substantially cylindrical recess 83 that is recessed upward is formed at the lower end of the resin member 53 on the back surface side.

The upper hinge member 49 includes a main body portion 49a, an arm portion 77 extending laterally from the main body portion 49a, and a substantially cylindrical shaft portion 78 extending downward from the arm portion 77. The lower portion of the shaft portion 78 is rotatably inserted into the recess 79 of the back surface side resin member 53. The upper cover member 48 is a member that constitutes the upper end portion of the partition plate 8. The upper cover member 48 covers the upper end portion of the back surface side resin member 53 and the upper end portion of the shaft portion 78. The first male screw 46a is a male screw fixing the upper cover member 48. In the present embodiment, the upper cover member 48 is fixed to the back surface resin member 53 by screwing the first male screw 46a into the female screw portion (not shown) formed at the upper end of the back surface resin member 53. There is.

Further, a first groove portion 73 is formed on the upper portion of the upper cover member 48. As shown in FIG. 15, which will be described later, the guide member 71 provided on the upper surface of the refrigerating chamber 1 includes a protrusion 72 that projects downward. When the opening of the refrigerating chamber 1 is closed by the left door 6, the protrusion 72 is inserted into the first groove 73 of the upper cover member 48. Then, when the opening of the refrigerating chamber 1 is closed by the left door 6, the partition plate 8 is configured to rotate while being guided by the protrusion 72 inserted into the first groove portion 73.

The lower hinge member 51 includes a main body portion 51a, an arm portion 81 extending laterally from the main body portion 51a, and a substantially cylindrical shaft portion 82 extending upward from the arm portion 81. The upper portion of the shaft portion 82 is rotatably inserted into the recess 83 of the resin member 53 on the back surface side. The lower cover member 50 is a member that constitutes the lower end portion of the partition plate 8. The lower cover member 50 covers the lower end portion of the back surface side resin member 53 and the lower end portion of the shaft portion 82. In the present embodiment, the lower cover member 50 is fixed to the back surface resin member 53 by screwing the male screw 46c into the female screw portion (not shown) formed at the lower end of the back surface resin member 53. ..

A spring stopper 47 is fixed to the lower hinge member 51 with a male screw 46c. A spring 52 is attached to the spring stopper 47. The spring 52 pushes the partition plate 8 in the direction opposite to the direction in which the partition plate 8 rotates when the opening of the refrigerating chamber 1 is closed by the left door 6. Back side resin with the first male screw 46a, a plurality of male screws 46c, a spring stopper 47, an upper cover member 48, an upper hinge member 49, a lower cover member 50, a lower hinge member 51, and a spring 52 attached. The member 53 is attached to the surface sheet metal 42 with the heat insulating material 45 sandwiched between the member 53 and the surface frame type resin member 44. As a result, the partition plate 8 according to the present embodiment is completed. In the present embodiment, the back side resin member 53 is attached to the front side sheet metal 42 by catching the claws 68 of the front side sheet metal 42 on the back side resin member 53.

FIG. 9 is a cross-sectional view of the surface sheet metal and the heater constituting the partition plate of the refrigerator according to the present embodiment. FIG. 10 is a perspective view showing a part of a cord-shaped heater constituting the heater of the partition plate of the refrigerator according to the present embodiment. Note that FIG. 9 shows a state before the heater 43 is attached to the surface sheet metal 42.
As shown in FIG. 9, the heater 43 includes a cord-shaped heater 56, an aluminum foil 54, and a double-sided tape 55. Further, as shown in FIG. 10, in the cord-shaped heater 56, heating wires 59 such as nichrome wires are wound around a core material 58 such as glass fibers at equal pitches. The core material 58 around which the heating wires 59 are wound at an equal pitch is doubly covered with an insulating coating material 60 such as polyvinyl chloride and an insulating coating material 61. The cord-shaped heater 56 does not have to wind the heating wires 59 around the core material 58 at exactly equal pitches, and may wrap the heating wires 59 around the core material 58 at substantially equal pitches.

As shown in FIG. 9, the aluminum foil 54 holds the cord-shaped heater 56 in a predetermined shape. As shown in FIG. 8, the cord-shaped heater 56 has a shape that meanders in the lateral direction and extends in the vertical direction, and is held by the aluminum foil 54. As shown in FIG. 9, the cord-shaped heater 56 and the aluminum foil 54 are attached to the back side of the surface sheet metal 42 with double-sided tape 55. The cord-shaped heater 56 and the aluminum foil 54 may be attached to the back side of the surface sheet metal 42 by using glue instead of the double-sided tape 55.

Here, the cord-shaped heater 56 may change the winding pitch of the heating wire 59 according to the position of the partition plate 8. Hereinafter, such a cord-shaped heater 56 will be referred to as a variable pitch heater. By using the cord-shaped heater 56 as a variable pitch heater, for example, the winding pitch of the heating wire 59 is made different in the upper part, the lower part and the central part of the partition plate 8, and the cord-shaped heater is made in the upper part, the lower part and the central part of the partition plate 8. The calorific value of 56 can be made different. As a result, it is possible to suppress a temperature rise in a portion of the partition plate 8 where dew condensation is unlikely to occur. However, the variable pitch heater requires a device capable of changing the speed at which the core material 58 is fed in manufacturing. In addition, the variable pitch heater takes a long time to manufacture. Therefore, the cost of the variable pitch heater is higher than that of the cord-shaped heater 56 in which the heating wires 59 are wound at equal pitches. Therefore, whether or not the cord-shaped heater 56 is a variable pitch heater should be determined in consideration of various cost factors such as the manufacturing cost and the power consumption during the operation of the refrigerator 100.

FIG. 11 is a view of the left door and the partition plate of the refrigerator according to the present embodiment as viewed from the refrigerator compartment side. FIG. 12 is an enlarged view of part A of FIG. FIG. 13 is an enlarged view of part B of FIG.

The partition plate 8 assembled as shown in FIG. 8 is attached to the left door 6 as shown in FIGS. 11 to 13. Specifically, the main body 49a of the upper hinge member 49 of the partition plate 8 is fixed to the inner plate 87 of the left door 6 with a male screw 46c. Further, the main body 51a of the lower hinge member 51 of the partition plate 8 is fixed to the inner plate 87 of the left door 6 by the second male screw 46b provided on the left door 6. At this time, the upper hinge member 49 and the lower hinge member so that the axis of the shaft portion 78 of the upper hinge member 49 and the axis of the shaft portion 82 of the lower hinge member 51 coincide with the shaft 104 extending in the vertical direction. 51 is attached to the inner plate 87 of the left door 6. As a result, the partition plate 8 can rotate about the shaft 104 as the center of rotation.

Here, the refrigerator 100 according to the present embodiment includes a first cover member 89 and a second cover member 93.

The first cover member 89 is provided on the guide member 71 so as to be movable in the vertical direction. Further, in the first cover member 89, when the left door 6 and the right door 7 close the opening of the refrigerating chamber 1, the left door 6 and the right door 7 open the opening of the refrigerating chamber 1. The door is lowered so as to come into contact with the upper end portion of the partition plate 8. The first cover member 89 has an upper gap 66 formed between the guide member 71 and the upper end of the partition plate 8 in a state where the left door 6 and the right door 7 close the opening of the refrigerating chamber 1. It covers at least a part of the side portion of the door and the back portion of the upper gap 66.

The second cover member 93 is provided on the partition plate 8 so as to be movable in the vertical direction. Further, in the second cover member 93, when the left door 6 and the right door 7 close the opening of the refrigerating chamber 1, the left door 6 and the right door 7 open the opening of the refrigerating chamber 1. It goes down and comes into contact with the lower surface portion 38 of the refrigerating chamber 1. The second cover member 93 is formed between the lower surface portion 38 of the refrigerating chamber 1 and the lower end portion of the partition plate 8 in a state where the left door 6 and the right door 7 close the opening of the refrigerating chamber 1. It covers at least a part of the side portion of the lower gap 67 and the back portion of the lower gap 67.

Hereinafter, the configuration of an example of the first cover member 89, the configuration around the first cover member 89, and the operation of the first cover member 89 will be described with reference to FIGS. 14 to 16. Further, with reference to FIGS. 17 to 19, the configuration of an example of the second cover member 93, the configuration around the second cover member 93, and the operation of the second cover member 93 will be described.

FIG. 14 is a perspective view of the periphery of the guide member provided on the upper surface of the refrigerator compartment of the refrigerator according to the present embodiment as viewed from the lower right front. 15 and 16 are vertical cross-sectional views showing the periphery of a guide member provided on the upper surface of the refrigerator refrigerator according to the present embodiment. In FIGS. 15 and 16, the left side of the paper is the front side of the refrigerator 100. Further, FIG. 15 shows a state in which the first cover member 89 is lowered. FIG. 16 shows a state in which the first cover member 89 is raised.

As described above, a guide member 71 for rotating the partition plate 8 is formed on the upper surface of the refrigerating chamber 1. The first cover member 89 has a shape that at least covers the lower part of the guide member 71, the back portion of the guide member 71, and at least a part of the side portion of the guide member 71. In the present embodiment, the first cover member 89 has, for example, a substantially box shape with an open upper portion. Specifically, the first cover member 89 includes a bottom surface portion 89a. Further, the first cover member 89 includes a back surface portion 89b, a side surface portion 89c, and a front surface portion 89d extending upward from the bottom surface portion 89a. The first cover member 89 includes a side surface portion 89c forming the left side surface portion and a side surface portion 89c forming the right side surface portion.

A through hole 90 into which the protrusion 72 of the guide member 71 is inserted is formed in the bottom surface portion 89a of the first cover member 89. Therefore, when the first cover member 89 moves up and down, it moves up and down along the protrusion 72. That is, the protrusion 72 serves as a guide when the first cover member 89 moves up and down. As a result, the first cover member 89 can move up and down in a stable manner. Further, the protrusion 72 has a configuration conventionally provided in a refrigerator. Therefore, it is not necessary to provide a dedicated guide when the first cover member 89 moves up and down, and it is possible to suppress an increase in the manufacturing cost of the refrigerator 100 when the first cover member 89 is provided.

As shown in FIG. 15, when the left door 6 and the right door 7 close the opening of the refrigerating chamber 1, the first cover member 89 is lowered, and the bottom surface portion 89a is attached to the upper end portion of the partition plate 8. It will be in contact. In this state, the back surface portion 89b of the first cover member 89 covers the back portion of the upper gap 66 formed between the guide member 71 and the upper end portion of the partition plate 8. Therefore, it is possible to block the cold air that tends to flow into the upper gap 66 from behind the upper gap 66. Further, in this state, the side surface portion 89c of the first cover member 89 covers at least a part of the side portion of the upper gap 66. Therefore, at least a part of the cold air that tends to flow into the upper gap 66 from the side of the upper gap 66 can be blocked. Therefore, the refrigerator 100 can suppress the inflow of cold air into the upper gap 66 as compared with the conventional case. In other words, the refrigerator 100 can prevent the fin portion 63 and the fin portion 65 that block the front of the upper gap 66 from being cooled by the cold air that has flowed into the upper gap 66, as compared with the conventional case.

In the present embodiment, when the left door 6 and the right door 7 close the opening of the refrigerating chamber 1, the side surface portion 89c of the first cover member 89 covers all the side portions of the upper gap 66. Covering. Therefore, it is possible to block all the cold air that tends to flow into the upper gap 66 from the side of the upper gap 66. Therefore, the refrigerator 100 can further suppress the inflow of cold air into the upper gap 66. In other words, the refrigerator 100 can further prevent the fin portion 63 and the fin portion 65 that block the front of the upper gap 66 from being cooled by the cold air that has flowed into the upper gap 66. Further, in the present embodiment, when the left door 6 and the right door 7 close the opening of the refrigerating chamber 1, the front surface portion 89d of the first cover member 89 has an upper gap 66, a fin portion 63, and a fin. It covers the space between the part 65 and the part 65. Therefore, it is possible to prevent the cold air flowing into the upper gap 66 from coming into contact with the fin portion 63 and the fin portion 65. Therefore, the refrigerator 100 can further prevent the fin portion 63 and the fin portion 65 that block the front of the upper gap 66 from being cooled by the cold air that has flowed into the upper gap 66.

Further, as shown in FIG. 16, when the left door 6 and the right door 7 are opened to open the opening of the refrigerating chamber 1, the first cover member 89 rises. Therefore, when the left door 6 and the right door 7 are opened, it is possible to prevent the first cover member 89 from rubbing against the upper end portion of the partition plate 8.

Here, the mechanism for moving the first cover member 89 up and down is not particularly limited, but in the present embodiment, the first cover member 89 is moved up and down by using the spring 92, the first permanent magnet 91, and the first ferromagnetic member. It constitutes a mechanism to move. The spring 92 pulls up the first cover member 89 upward. The spring 92 is provided, for example, between the first cover member 89 and the guide member 71. The first permanent magnet 91 is provided on one of the upper end portion of the partition plate 8 and the first cover member 89. The first ferromagnetic member is a member made of a ferromagnetic material. The first ferromagnetic member is provided on the upper end of the partition plate 8 and the other of the first cover member 89. Further, when the left door 6 and the right door 7 close the opening of the refrigerating chamber 1, the first ferromagnetic member faces the first permanent magnet 91.

In the present embodiment, the first permanent magnet 91 is provided on the first cover member 89. Further, in the present embodiment, the first male screw 46a provided at the upper end of the partition plate 8 is formed of a ferromagnetic material, and the first male screw 46a is used as the first ferromagnetic member. By using the first male screw 46a conventionally provided in the refrigerator as the first ferromagnetic member, it is possible to suppress an increase in the number of parts when the first cover member 89 is provided, and suppress an increase in the manufacturing cost of the refrigerator 100. can.

When a mechanism for moving the first cover member 89 up and down is configured by using the spring 92, the first permanent magnet 91, and the first ferromagnetic member, the first cover member 89 moves up and down as follows. In the state where the left door 6 and the right door 7 close the opening of the refrigerating chamber 1, the magnetic force acting between the first permanent magnet 91 and the first male screw 46a, which is the first ferromagnetic member, is shown in the figure. As shown in 15, the first cover member 89 is lowered. As the left door 6 and the right door 7 are opened, the magnetic force acting between the first permanent magnet 91 and the first male screw 46a, which is the first ferromagnetic member, becomes smaller. Therefore, when the left door 6 and the right door 7 are opened, the force of the spring 92 raises the first cover member 89. By constructing a mechanism for moving the first cover member 89 up and down using a spring 92, a first permanent magnet 91, and a first ferromagnetic member, a mechanism for moving the first cover member 89 up and down can be constructed at low cost. Can be done.

FIG. 17 is a vertical cross-sectional view showing the periphery of the lower end portion of the partition plate in the refrigerator according to the present embodiment. In FIG. 17, the left side of the paper is the front side of the refrigerator 100. Further, FIG. 17 shows a state in which the second cover member 93 is lowered. 18 and 19 are perspective views of the vicinity of the lower end of the partition plate in the refrigerator according to the present embodiment as viewed from the refrigerator compartment side. Note that FIG. 18 shows a state in which the second cover member 93 is lowered. FIG. 19 shows a state in which the second cover member 93 is raised.

The second cover member 93 has a shape that at least covers the back surface portion of the partition plate 8 and at least a part of the side portion of the partition plate 8. In the present embodiment, the second cover member 93 has, for example, a substantially U-shape in a plan view. Specifically, the second cover member 93 includes a back surface portion 93a facing the back surface side resin member 53, which is a back surface portion of the partition plate 8, a side surface portion 93b facing the left side portion of the partition plate 8, and a partition plate. A side surface portion 93b facing the right side portion of No. 8 is provided.

An elongated hole 96 extending in the vertical direction is formed in the back surface portion 93a of the second cover member 93. A fastener 97 such as a male screw penetrates through the elongated hole 96. The back surface portion 93a of the second cover member 93 is supported between the head of the fastener 97 and the partition plate 8, so that the second cover member 93 does not come off from the partition plate 8. Further, the distance between the head of the fastener 97 and the partition plate 8 is larger than the thickness of the back surface portion 93a of the second cover member 93. Therefore, the second cover member 93 can move up and down by the length of the elongated hole 96 in the vertical direction while being guided by the fastener 97.

As shown in FIGS. 17 and 18, when the left door 6 and the right door 7 close the opening of the refrigerating chamber 1, the second cover member 93 descends to the lower surface portion 38 of the refrigerating chamber 1. Contact. In this state, the back surface portion 93a of the second cover member 93 covers the back portion of the lower gap 67 formed between the lower surface portion 38 of the refrigerating chamber 1 and the lower end portion of the partition plate 8. Therefore, it is possible to block the cold air that tends to flow into the lower gap 67 from behind the lower gap 67. Further, in this state, the side surface portion 93b of the second cover member 93 covers at least a part of the side portion of the lower gap 67. Therefore, at least a part of the cold air that tends to flow into the lower gap 67 from the side of the lower gap 67 can be blocked. Therefore, the refrigerator 100 can suppress the inflow of cold air into the lower gap 67 as compared with the conventional case. In other words, the refrigerator 100 can prevent the fin portion 75 and the fin portion 76 that close the front of the lower gap 67 from being cooled by the cold air that has flowed into the lower gap 67.

In the present embodiment, when the left door 6 and the right door 7 close the opening of the refrigerating chamber 1, the side surface portion 93b of the second cover member 93 covers all the side portions of the lower gap 67. Covering. Therefore, it is possible to block all the cold air that tends to flow into the lower gap 67 from the side of the lower gap 67. Therefore, the refrigerator 100 can further suppress the inflow of cold air into the lower gap 67. In other words, the refrigerator 100 can further prevent the fin portion 75 and the fin portion 76 that close the front of the lower gap 67 from being cooled by the cold air that has flowed into the lower gap 67.

Further, in the present embodiment, the second groove portion 95 is formed on the lower surface portion 38 of the refrigerating chamber 1. Then, in a state where the left door 6 and the right door 7 close the opening of the refrigerating chamber 1, the lower end portion of the second cover member 93 is inserted into the second groove portion 95. As a result, the sealing property between the lower surface portion 38 of the refrigerating chamber 1 and the lower end portion of the second cover member 93 is improved. Therefore, it is possible to prevent cold air from flowing into the lower gap 67 from between the lower surface portion 38 of the refrigerating chamber 1 and the lower end portion of the second cover member 93. Therefore, the refrigerator 100 can further prevent the fin portion 75 and the fin portion 76 that close the front of the lower gap 67 from being cooled by the cold air that has flowed into the lower gap 67.

Further, as shown in FIG. 19, when the left door 6 and the right door 7 are opened to open the opening of the refrigerating chamber 1, the second cover member 93 rises. Therefore, when the left door 6 and the right door 7 are opened, it is possible to prevent the second cover member 93 from rubbing against the lower surface portion 38 of the refrigerating chamber 1.

Here, the mechanism for moving the second cover member 93 up and down is not particularly limited, but in the present embodiment, a mechanism for moving the second cover member 93 up and down using the second permanent magnet 94 and the second ferromagnetic member. Consists of. The second permanent magnet 94 is provided on one of the left door 6 and the second cover member 93. The second ferromagnetic member is a member made of a ferromagnetic material. The second ferromagnetic member is provided on the other of the left door 6 and the second cover member 93. Further, when the left door 6 and the right door 7 have the opening of the refrigerating chamber 1 open, the second ferromagnetic member faces the second permanent magnet 94 in the lateral direction.

In the present embodiment, the second permanent magnet 94 is provided on the second cover member 93. More specifically, the second permanent magnet 94 is provided on the back surface portion 93a of the second cover member 93. Further, in the present embodiment, the second male screw 46b provided on the left door 6 is formed of a ferromagnetic material, and the second male screw 46b is used as the second ferromagnetic member. By using the second male screw 46b conventionally provided in the refrigerator as the second ferromagnetic member, it is possible to suppress an increase in the number of parts when the second cover member 93 is provided, and suppress an increase in the manufacturing cost of the refrigerator 100. can.

When a mechanism for moving the second cover member 93 up and down is configured by using the second permanent magnet 94 and the second ferromagnetic member, the second cover member 93 moves up and down as follows. When the opening of the refrigerating chamber 1 is closed by the left door 6 and the right door 7, as shown in FIG. 18, the second permanent magnet 94 and the second male screw 46b, which is the second ferromagnetic member, are separated from each other. The plate 8 rotates. Therefore, at the position of the partition plate 8 in which the left door 6 and the right door 7 close the opening of the refrigerating chamber 1, the second permanent magnet 94 and the second male screw 46b, which is the second ferromagnetic member, are used. Are no longer opposed to each other, and the magnetic force acting between the second permanent magnet 94 and the second male screw 46b, which is the second ferromagnetic member, becomes smaller. As a result, the second cover member 93 falls under its own weight. That is, the second cover member 93 descends by its own weight.

When the left door 6 and the right door 7 are opened, the partition plate 8 rotates in the direction in which the second permanent magnet 94 and the second male screw 46b, which is the second ferromagnetic member, approach each other, as shown in FIG. .. Therefore, as the left door 6 and the right door 7 are opened, the magnetic force acting between the second permanent magnet 94 and the second male screw 46b, which is the second ferromagnetic member, becomes larger, and the left door 6 becomes larger. At the position of the partition plate 8 in which the right door 7 opens the opening of the refrigerating chamber 1, the second cover member 93 is in a raised state. By constructing a mechanism for moving the second cover member 93 up and down using the second permanent magnet 94 and the second ferromagnetic member, the mechanism for moving the second cover member 93 up and down can be constructed at low cost.

Here, regarding the energization of the partition plate 8 to the heater 43, the control device 29 stores an energization rate calculation formula determined in advance by a test or the like. The energization rate to the heater 43 is calculated by the control device 29 according to the outside air temperature, the outside air humidity, and the refrigerating room temperature. That is, in the present embodiment, the energization rate of the heater 43 changes according to the environment around the refrigerator 100.

The energization rate calculation formula stored in the control device 29 is represented by the following formula (1) as an example.
Energization rate = C x outside air humidity + D ... (1)
Here, C and D are coefficients determined by a value obtained by subtracting the refrigerating room temperature from the outside air temperature. That is, C and D change depending on the value obtained by subtracting the refrigerating room temperature from the outside air temperature. Then, the control device 29 uses the outside air temperature detected by the outside air temperature sensor, the outside air humidity detected by the outside air humidity sensor 10, the refrigerating room temperature detected by the refrigerating room temperature sensor 32, and the above-mentioned energization rate calculation formula. The energization rate to the heater 43 is determined. The determined energization rate is applied to the surface of the partition plate 8, the periphery of the left door 6, the periphery of the right door 7, the gasket 62, the gasket 64, the fin portion 63, the fin portion 65, the fin portion 75, the fin portion 76, and the like. This is the energization rate at which dew condensation does not occur.

The energization rate calculated from the energization rate calculation formula increases as the outside air temperature and outside air humidity increase, and increases as the refrigerating room temperature decreases. Then, the control device 29 energizes the heater 43 at the energization rate determined by calculation. Therefore, if the outside air temperature and the outside air humidity are low and the refrigerating room temperature is high, the energization rate of the heater 43 can be reduced, so that an increase in power consumption by the heater 43 can be suppressed.

Here, in the conventional refrigerator, the fin portion 63 and the fin portion 65 that block the front of the upper gap 66 are the places most likely to be cooled by cold air. That is, in the conventional refrigerator, the fin portion 63 and the fin portion 65 that close the front of the upper gap 66 are the places where dew condensation is most likely to occur. Therefore, in the conventional refrigerator, the energization rate to the heater 43 is the energization rate at which dew condensation does not occur on the fin portion 63 and the fin portion 65.

Therefore, in the present embodiment, as described above, the first cover member 89 suppresses the inflow of cold air into the upper gap 66, and the fin portion 63 and the fin portion 65 that block the front of the upper gap 66 are cooled. That is suppressed more than before. As a result, in the refrigerator 100 according to the present embodiment, even if the energization rate to the heater 43 is made smaller than before, it is possible to suppress the occurrence of dew condensation on the fin portion 63 and the fin portion 65. Therefore, the refrigerator 100 according to the present embodiment can suppress dew condensation while suppressing an increase in power consumption due to the heater 43 as compared with the conventional case.

By the way, as a result of suppressing the cooling of the fin portion 63 and the fin portion 65 by the first cover member 89, the fin portion 75 and the fin portion 76 that block the front of the lower gap 67 become the places most likely to be cooled by the cold air. That is, the fin portion 75 and the fin portion 76 that close the front of the lower gap 67 are the locations where dew condensation is most likely to occur. Here, in the present embodiment, the second cover member 93 suppresses the inflow of cold air into the lower gap 67, and the fin portion 75 and the fin portion 76 that close the front of the lower gap 67 are cooled. Is suppressing more than. As a result, in the refrigerator 100 according to the present embodiment, the occurrence of dew condensation can be suppressed even if the energization rate of the heater 43 is further reduced. Therefore, the refrigerator 100 according to the present embodiment can suppress dew condensation while further suppressing an increase in power consumption due to the heater 43.

The configuration of the partition plate 8, the method of energizing the heater 43, the energization rate calculation formula, and the like are not limited to the above contents. For example, the partition plate 8 may be configured without the surface frame type resin member 44.

As described above, the refrigerator 100 according to the present embodiment includes the main body 101, the first door and the second door of the double door type, the partition plate 8, the guide member 71, and the first cover member 89. The main body 101 includes a storage chamber having an opening formed on the front surface side. The first door and the second door of the double door type cover the opening of the storage chamber of the main body 101 so as to be openable and closable. In the above description, the first door is the left door 6 and the second door is the right door 7. Further, in the above description, the first door and the second door of the double door type cover the opening of the refrigerating room 1 which is one of the storage rooms so as to be openable and closable. The partition plate 8 has a heater 43 and is rotatably provided on the first door, and the first door and the second door are in a state where the first door and the second door close the opening of the storage chamber. It closes the gap between them from the storage room side. The guide member 71 is provided on the upper surface of the storage chamber and rotates the partition plate 8. The first cover member 89 is provided on the guide member 71 so as to be movable in the vertical direction. Further, in the first cover member 89, when the first door and the second door close the opening of the storage chamber, the first cover member 89 is more than the state where the first door and the second door open the opening of the storage chamber. At least a part of the side portion of the upper gap 66 formed between the guide member 71 and the upper end portion of the partition plate 8 by descending and contacting the upper end portion of the partition plate 8 and the back portion of the upper gap 66. Covering.

In the refrigerator 100 configured in this way, as described above, it is possible to suppress dew condensation while suppressing an increase in power consumption due to the heater 43 as compared with the conventional case.

1 Refrigerator room, 2 Ice making room, 3 Small freezer room, 4 Freezer room, 5 Vegetable room, 6 Left door, 7 Right door, 8 Partition plate, 9 Outside air temperature sensor, 10 Outside air humidity sensor, 11 Cover member, 12 Compressor , 13 Machine room condenser, 14 Left side side condensing pipe, 15 Ceiling surface condensing pipe, 16 Back condensing pipe, 17 Right side side condensing pipe, 18 Dew prevention pipe, 19 Dryer, 20 Capsule pipe, 21 Cooler, 22 Muffler, 23 Suction piping, 24 refrigerating room outlet air passages, 26 pockets, 27 chilled rooms, 28 chilled cases, 29 control devices, 30 shelves, 31 refrigerating room damper devices, 32 refrigerating room temperature sensors, 33a to 33d heat, 34 machine rooms, 35a-35e wind, 37a-37e outlet, 38 lower surface, 42 surface sheet metal, 43 heater, 44 surface frame type resin member, 45 heat insulating material, 46a 1st male screw, 46b 2nd male screw, 46c male screw, 47 Spring stopper, 48 upper cover member, 49 upper hinge member, 49a main body, 50 lower cover member, 51 lower hinge member, 51a main body, 52 spring, 53 back side resin member, 54 aluminum foil, 55 double-sided tape, 56 cord-shaped heater, 57 claw receiving part, 58 core material, 59 heating wire, 60 insulating coating material, 61 insulating coating material, 62 gasket, 63 fin part, 64 gasket, 65 fin part, 66 upper gap, 67 lower gap, 68 claws, 69 ceilings, 70 front gaskets, 71 guide members, 72 protrusions, 73 first grooves, 75 fins, 76 fins, 77 arms, 78 shafts, 79 recesses, 81 arms, 82 shafts, 83 recess, 85 baffle, 87 inner plate, 88 inner plate, 89 first cover member, 89a bottom part, 89b back part, 89c side part, 89d front part, 90 through hole, 91 first permanent magnet, 92 spring, 93 2nd cover member, 93a back part, 93b side part, 94 2nd permanent magnet, 95 2nd groove part, 96 slotted hole, 97 fastener, 98 cap parts, 99 door surface panel, 100 refrigerator, 101 main body, 102 refrigerant circuit , 103 Setting operation unit, 104 axes.

Claims

A main body having a storage chamber with an opening formed on the front side,
The first and second doors of the double door type that cover the opening so that it can be opened and closed, and
A gap between the first door and the second door, which has a heater and is rotatably provided on the first door, and the first door and the second door have the opening closed. With a partition plate that closes the door from the storage room side,
A guide member provided on the upper surface of the storage chamber and rotating the partition plate, and
A first cover member provided on the guide member so as to be movable in the vertical direction,
With
The first cover member is lowered when the first door and the second door are closed, as compared with the state where the first door and the second door are open. It comes into contact with the upper end portion of the partition plate and covers at least a part of the side portion of the upper gap formed between the guide member and the upper end portion of the partition plate and the back portion of the upper gap. refrigerator.
A spring that pulls up the first cover member and
A first permanent magnet provided on one of the upper end portion of the partition plate and the first cover member, and
The first permanent at the position of the partition plate provided on the upper end portion of the partition plate and the other of the first cover member, with the first door and the second door closing the opening. The first ferromagnetic member that faces the magnet in the vertical direction,
With
When the first door and the second door are closed, the first cover member is lowered by the magnetic force acting between the first permanent magnet and the first ferromagnetic member. The refrigerator according to claim 1.
In a state where the first door and the second door have the opening open, the first cover member has the first door and the second door closing the opening by the force of the spring. The refrigerator according to claim 2, which is higher than the state in which the door is located.
The partition plate includes an upper cover member constituting the upper end portion and a first male screw fixing the upper cover member.
The first permanent magnet is provided on the first cover member, and the first permanent magnet is provided on the first cover member.
The refrigerator according to claim 2 or 3, wherein the first male screw is the first ferromagnetic member.
Any one of claims 1 to 4, wherein the first cover member covers all the side portions of the upper gap in a state where the first door and the second door close the opening. The refrigerator described in item 1.
The guide member includes a protrusion that projects downward, and the guide member has a protrusion that protrudes downward.
A first groove into which the protrusion is inserted is formed at the upper end of the partition plate.
The partition plate has a configuration in which when the opening is closed by the first door, the partition plate is guided by the protrusion inserted into the first groove and rotates.
The refrigerator according to any one of claims 1 to 5, wherein a through hole into which the protrusion is inserted is formed in the first cover member.
A second cover member provided on the partition plate so as to be movable in the vertical direction is provided.
The second cover member is lowered when the first door and the second door are closed, as compared with the state where the first door and the second door are open. The claim that contacts the lower surface portion of the storage chamber and covers at least a part of the side portion of the lower gap formed between the lower surface portion and the lower end portion of the partition plate and the back portion of the lower gap. The refrigerator according to any one of items 1 to 6.
A second permanent magnet provided on one of the first door and the second cover member,
Laterally with the second permanent magnet at the position of the partition plate provided on the other side of the first door and the second cover member and in a state where the first door and the second door have the opening open. The second ferromagnetic member facing each other
With
In the second cover member, the second permanent magnet and the second ferromagnetic member face each other at the position of the partition plate in a state where the first door and the second door close the opening. The refrigerator according to claim 7, which is configured to disappear and fall by its own weight.
The second cover member is located between the second permanent magnet and the second ferromagnetic member at the position of the partition plate in a state where the first door and the second door have the opening open. The refrigerator according to claim 8, wherein the refrigerator is pulled up by an acting magnetic force, and the first door and the second door are raised more than the state in which the opening is closed.
The first door includes a second male screw that fixes the partition plate to the first door.
The second permanent magnet is provided on the second cover member, and the second permanent magnet is provided on the second cover member.
The refrigerator according to claim 8 or 9, wherein the second male screw is the second ferromagnetic member.
A second groove is formed on the lower surface of the storage chamber.
Any one of claims 7 to 10 in which the lower end portion of the second cover member is inserted into the second groove portion in a state where the first door and the second door close the opening. Refrigerator as described in the section.
Any one of claims 7 to 11, wherein the second cover member covers all the side portions of the lower gap in a state where the first door and the second door close the opening. The refrigerator described in item 1.