JP7275377B2 - refrigerator - Google Patents

Description

The present disclosure relates to a refrigerator with a pair of double doors.

Conventionally, a refrigerator provided with a pair of double doors has been proposed. Such a refrigerator has a main body having a storage compartment with an opening formed on the front side. In such a refrigerator, the opening on the front side of the storage compartment is covered with a pair of double doors so that it can be opened and closed. A partition plate is provided on one of the pair of double doors so as to be rotatable about a rotation shaft extending in the vertical direction. Hereinafter, of the pair of double doors, the door provided with the partition plate 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 the second door.

A refrigerator provided with a pair of double doors is provided with a guide member provided on the upper surface of a storage compartment for rotating a partition plate. Thereby, when the opening of the storage compartment is closed by the first door and the second door, the upper end of the partition plate is guided by the guide member in the storage compartment, and the partition plate rotates. When the opening of the storage compartment is closed by the first door and the second door, the gap between the first door and the second door is blocked from the storage compartment side by the partition plate. In addition, when the opening of the storage room is closed by the first door and the second door, the surfaces of the first door and the second door on the side of the storage room are in close contact with the periphery of the opening of the storage room and the front surface of the partition plate. A gasket is provided to

As mentioned above, the divider rotates within the storage compartment. Therefore, when the opening of the storage chamber is closed by the first door and the second door, an upper gap is formed between the upper end of the partition plate and the guide member 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 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. 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. formed. Therefore, when the opening of the storage chamber is closed by the first door and the second door, the fins of the first door and the fins of the second door overlap in front of the upper gap and the lower gap. As a result, the fins of the first door and the fins of the second door block the front of the upper and lower gaps, thereby suppressing cold air from leaking out of the refrigerator from the upper and lower gaps in the storage compartment. be done.

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

Here, the fins of the first door and the fins of the second door closing the upper gap are cooled by the cool air that has flowed into the upper gap. Similarly, the fins of the first door and the fins of the second door blocking the front of the lower gap are cooled by the cold air that has flowed into the lower gap. In addition, the temperature inside the storage compartment rises more easily in the upper part than in the lower part. Therefore, more cold air is supplied to the upper part of the storage chamber than to the lower part. Therefore, cold air flows into the upper gap more easily than the lower gap. That is, in a refrigerator having a pair of double doors, the area around the upper gap is cooled by cold air that has flowed into the upper gap, and dew condensation tends to occur around the upper gap.

As one method of suppressing dew condensation due to the cold air that has flowed into the upper gap, it is conceivable to increase the energization rate of the heater of the partition plate to increase the amount of heat generated by the heater. This is because the fins of the first door, the fins of the second door, and the like, which have been cooled by the cool air that has flowed into the upper gap, can be heated by the heat of the heater. However, with this method, the energization rate to the heater increases. As a result, the power consumption of the heater increases, and the power consumption of the refrigerator increases.

Therefore, a conventional refrigerator has been proposed in which an upper packing extending upward is provided on the upper part of the rear surface of the partition plate (see Patent Document 1). In the refrigerator configured in this manner, the upper packing can block cold air that is about to flow into the upper gap from behind the upper gap. Therefore, in the refrigerator configured in this way, condensation due to cold air flowing into the upper gap can be suppressed compared to a refrigerator without an upper packing.

JP 2019-032096 A

In the refrigerator disclosed in Patent Literature 1, as described above, the upper packing can block cold air from flowing into the upper gap from behind the upper gap. However, in the refrigerator described in Patent Literature 1, the upper packing cannot block cold air that is about to flow into the upper gap from the side of the upper gap. Therefore, in the refrigerator described in Patent Document 1, the upper packing cannot sufficiently suppress the inflow of cold air into the upper gap. Therefore, the refrigerator described in Patent Document 1 has a problem that the increase in power consumption due to the heater cannot be sufficiently suppressed.

An object of the present disclosure is to provide a refrigerator capable of suppressing dew condensation while suppressing an increase in power consumption by a heater more than conventionally.

A refrigerator according to the present disclosure includes a main body having a storage compartment with an opening formed on the front side, double-opening first and second doors covering the opening in an openable and closable manner, and a heater. 1 door is rotatably provided, and when the first door and the second door close the opening, the gap between the first door and the second door is closed from the storage room side. a partition plate; a guide member provided on an upper surface of the storage chamber for rotating the partition plate; and a first cover member provided on the guide member so as to be vertically movable, When the opening is closed by the first door and the second door, the member is lower than when the opening is opened by the first door and the second door. and covers at least a portion of the sides of the upper gap formed between the guide member and the upper end of the partition plate and the back of the upper gap.

In the refrigerator according to the present disclosure, the first cover member suppresses cold air from flowing into the upper gap. At this time, the first cover member of the refrigerator according to the present disclosure can block cold air from flowing into the upper gap from behind the upper gap, like the conventional upper packing. In addition, the first cover member of the refrigerator according to the present disclosure can block cold air that tries to flow into the upper gap from the sides of the upper gap, compared to the conventional upper packing. That is, the first cover member of the refrigerator according to the present disclosure can suppress cold air from flowing 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 by the heater more than conventionally.

It is a front view of a refrigerator concerning this embodiment. It is an exploded perspective view showing composition of a left door of a refrigerator concerning this embodiment. Fig. 2 is an exploded perspective view showing the configuration of the right door of the refrigerator according to the present embodiment; It is a figure which shows the refrigerant circuit of the refrigerator which concerns on this Embodiment. Fig. 2 is a connection diagram of refrigerant pipes in the refrigerator according to the present embodiment; It is a connection diagram of refrigerant pipes in a modification of the refrigerator according to the present embodiment. It is a longitudinal cross-sectional view showing the upper portion of the refrigerator according to the present embodiment. FIG. 3 is an exploded view of the partition plate of the refrigerator according to the embodiment; It is a cross-sectional view of the surface sheet metal and heater which comprise the partition plate of the refrigerator which concerns on this Embodiment. Fig. 2 is a perspective view showing a part of a cord-shaped heater that constitutes the heater of the partition plate of the refrigerator according to the present embodiment; It is the figure which looked at the left door and partition plate of the refrigerator which concerns on this Embodiment from the refrigerating compartment side. FIG. 12 is an enlarged view of part A in FIG. 11; FIG. 12 is an enlarged view of a B portion of FIG. 11; FIG. 3 is a perspective view of the periphery of a guide member provided on the upper surface of the refrigerating compartment of the refrigerator according to the present embodiment, viewed from the front right. FIG. 4 is a vertical cross-sectional view showing the periphery of a guide member provided on the top surface of the refrigerating compartment of the refrigerator according to the present embodiment; FIG. 4 is a vertical cross-sectional view showing the periphery of a guide member provided on the top surface of the refrigerating compartment of the refrigerator according to the present embodiment; It is a longitudinal cross-sectional view which shows the lower end part periphery of the partition plate in the refrigerator which concerns on this Embodiment. Fig. 3 is a perspective view of the periphery of the lower end portion of the partition plate in the refrigerator according to the present embodiment, viewed from the refrigerating compartment side; Fig. 3 is a perspective view of the periphery of the lower end portion of the partition plate in the refrigerator according to the present embodiment, viewed from the refrigerating compartment side;

In the following embodiments, examples of refrigerators according to the present disclosure will be described based on the drawings. Note that the refrigerator according to the present disclosure is not limited by the contents described in the following embodiments. Also, in the drawings below, the size of each component of the refrigerator according to the present disclosure may differ from the size of each component of the refrigerator actually manufactured based on the present disclosure.

Embodiment.
FIG. 1 is a front view of a refrigerator according to this embodiment.
The configuration of refrigerator 100 according to the present embodiment will be described below. It should be noted that hereinafter, when each configuration of refrigerator 100 is described, terms representing directions are appropriately used in order to facilitate understanding of each configuration of refrigerator 100 . Directional terms include, for example, up, down, right, left, front, and back. These directions are directions when refrigerator 100 is viewed from the front.

Refrigerator 100 according to the present embodiment includes main body 101 forming an outer shell. The main body 101 includes an outer box that forms the outer peripheral surface of the main body 101, an inner box that forms the inner peripheral surface of the main body 101, and a heat insulating material provided between the outer and inner boxes. 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 with an opening formed on the front side. In this embodiment, the interior of the main body 101 is partitioned by a partition wall or the like to provide a plurality of storage chambers. Specifically, the main body 101 is provided with a refrigerator compartment 1, an ice making compartment 2, a small freezer compartment 3, a freezer compartment 4, and a vegetable compartment 5 as storage compartments.

The refrigerating compartment 1 is provided on the uppermost level in the storage compartment. The opening of the refrigerating compartment 1 is covered with a double door type left door 6 and right door 7 so as to be openable and closable. Specifically, the left end of the left door 6 is rotatably connected to the main body 101 . A right end portion 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 constitute double doors that open and close the opening of the refrigerator compartment 1 . A partition plate 8 is provided on the left door 6 so as to be rotatable about a rotating shaft extending in the vertical direction. This 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 and the right door 7 from leaking cold air in the refrigerator 100 to the outside of the refrigerator 100. In addition, when the left door 6 and the right door 7 close the opening of the refrigerator compartment 1, the partition plate 8 closes the gap between the left door 6 and the right door 7 from the refrigerator compartment 1 side. This prevents air from entering the refrigerator compartment 1 from outside the refrigerator 100 through the gap between the door 6 and the right door 7 . Details of the partition plate 8 will be described later.

In addition, below, the door of the side in which the partition plate 8 is provided among the left door 6 and the right door 7 may be called a 1st door. Moreover, the door on the side where the partition plate 8 is not provided among the left door 6 and the right door 7 may be called a 2nd door. That is, in this embodiment, the left door 6 is the first door, and the right door 7 is the second door. In addition, 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, an ice making compartment 2 and a small freezer compartment 3 are arranged in parallel. The opening of the ice making chamber 2 is covered with a drawer type door so that it can be opened and closed. A storage box for storing items to be 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 compartment 3 is covered with a drawer type door so that it can be opened and closed. A storage box is connected to the door on the side of the small freezer compartment 3 for storing items to be stored in the small freezer compartment 3. - 特許庁A freezer compartment 4 is arranged below the ice making compartment 2 and the small freezer compartment 3 . The opening of the freezer compartment 4 is covered with a drawer type door so that it can be opened and closed. A storage box for storing items to be stored in the freezer compartment 4 is connected to the door on the freezer compartment 4 side. A vegetable compartment 5 is arranged below the freezer compartment 4 . The opening of the vegetable compartment 5 is covered with a drawer type door so that it can be opened and closed. The door is connected to the vegetable compartment 5 side with a storage box for storing items to be stored in the vegetable compartment 5. - 特許庁

Note that the number of storage compartments, the arrangement of each storage compartment, and the like are merely examples. In addition, the storage compartment covered by the double-opening left door 6 and right door 7 is not limited to the refrigerator compartment 1, and may be a storage compartment other than the refrigerator compartment 1.

In addition, 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 air outside the refrigerator 100 . The outside air humidity sensor 10 detects the outside air humidity, which is the humidity of the air outside the refrigerator 100 .

The outside air temperature sensor 9 and the outside air humidity sensor 10 can be installed anywhere as long as the outside air temperature and the outside air humidity can be detected. However, it is desirable to install the outside air temperature sensor 9 and the outside air humidity sensor 10 at positions where they 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 a later-described condensation pipe provided in the main body 101 . In refrigerator 100 according to the present embodiment, main body 101 and left door 6 are connected by a hinge, and cover member 11 is provided to cover the top of the hinge. For example, the outside air temperature sensor 9 and the outside air humidity sensor 10 may be installed inside the cover member 11 . The inner side of the cover member 11 is a position that is not affected by the temperature of the later-described condensation pipe provided in the main body 101 .

FIG. 2 is an exploded perspective view showing the configuration of the left door of the refrigerator according to this embodiment. FIG. 3 is an exploded perspective view showing the structure of the right door of the refrigerator according to this embodiment.
The left door 6 and the right door 7 are configured with cap parts 98 made of resin on the top, bottom, left, and right. The back surface of the left door 6, in other words, the surface of the left door 6 facing the refrigerating compartment 1 is made of an inner plate 87 made of resin. The rear surface of the right door 7, in other words, the surface of the right door 7 facing the refrigerating compartment 1 is made of an inner plate 88 made of resin. Further, the front surfaces of the left door 6 and the right door 7 are composed of door surface panels 99 made of glass. In other words, the left door 6 has six surfaces composed of the cap component 98 , the inner plate 87 , and the door surface panel 99 . The right door 7 has six surfaces including a cap part 98 , an inner plate 88 , and a door surface panel 99 . Moreover, a heat insulating material is provided inside the left door 6 and the right door 7 . Further, in the present embodiment, the partition plate 8 described above is rotatably provided on the inner plate 87 of the left door 6 . Specifically, in this embodiment, the upper and lower portions of the partition plate 8 are rotatably fixed to the inner plate 87 by hinges.

A setting operation section 103 is provided on the left door 6 . The setting operation unit 103 can be used to set the temperature of each storage compartment, operate the operation mode of the refrigerator 100, and the like. The refrigerator 100 has, for example, an energy saving mode and a dew condensation mode as operation modes. Note that the setting operation section 103 may be provided on the right door 7 .

A gasket 62 having a permanent magnet provided therein is attached to the rear surface of the inner plate 87 of the left door 6 . A gasket 64 in which a permanent magnet is provided is attached to the rear 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 formed in the front flange portion 70 of the main body 101 and the partition plate. Adhere to the front of 8. For the front flange portion 70, refer to FIGS. 5 and 6, which will be described later.

Here, the refrigerator 100 has a guide member 71 for rotating the partition plate 8 on the upper surface of the refrigerator compartment 1, as will be described later with reference to FIGS. 14 and 15 . When the opening of the refrigerator compartment 1 is closed by the left door 6 and the right door 7, the upper end of the partition plate 8 is guided by the guide member 71 in the refrigerator compartment 1, and the partition plate 8 rotates. As a result, when the opening of the refrigerator compartment 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 blocked by the partition plate 8 from the refrigerator compartment 1 side. be Therefore, 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 partitioning plate 8 and the guide member 8 are separated from each other so that the partitioning plate 8 can rotate smoothly in the refrigerating chamber 1 . 71, an upper gap 66 is formed as will be described later with reference to FIGS. When the opening of the refrigerating chamber 1 is closed by the left door 6 and the right door 7, there is a gap between the lower end of the partition plate 8 and the lower surface 38 of the refrigerating chamber 1, as will be described later with reference to FIG. A lower gap 67 is formed.

For this reason, the gaskets 62 and 64 are formed with fins that close the front of the upper gap 66 and the front of the lower gap 67 . Specifically, when the opening of the refrigerator compartment 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 faces 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 . When the opening of the refrigerator compartment 1 is closed by the left door 6 and the right door 7 , the fins 63 extend toward the right door 7 and face the upper gap 66 . When the opening of the refrigerator compartment 1 is closed by the left door 6 and the right door 7 , the fin 75 extends toward the right door 7 and faces the lower gap 67 . Further, when the opening of the refrigerator compartment 1 is closed by the left door 6 and the right door 7 , the left side edge 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 . When the opening of the refrigerator compartment 1 is closed by the left door 6 and the right door 7 , the fins 65 extend toward the left door 6 and face the upper gap 66 . When the opening of the refrigerator compartment 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 refrigerator compartment 1 is closed by the left door 6 and the right door 7, the fins 63 of the gasket 62 and the fins 65 of the gasket 64 overlap each other. The upper portion of the fin portion 63 and the upper portion of the fin portion 65 are in close contact with the portion of the front flange portion 70 of the main body 101 that constitutes the periphery of the opening of the refrigerator compartment 1 . Also, 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 refrigerator compartment 1 is closed by the left door 6 and the right door 7 , the fins 63 and 65 block the front of the upper gap 66 . Similarly, when the opening of the refrigerator compartment 1 is closed by the left door 6 and the right door 7, the fins 75 of the gasket 62 and the fins 76 of the gasket 64 overlap each other. The lower portions of the fins 75 and 76 are in close contact with the portion of the front flange 70 of the main body 101 that forms the periphery of the opening of the refrigerating chamber 1 . Also, 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 refrigerator compartment 1 is closed by the left door 6 and the right door 7 , the fins 75 and 76 block the front portion of the lower gap 67 .

Three pockets 26 for storage are attached along the height direction on the left door 6 and the right door 7 on the refrigerator compartment 1 side.

FIG. 4 is a diagram showing a refrigerant circuit of the refrigerator according to this embodiment. FIG. 5 is a connection diagram of refrigerant pipes in the refrigerator according to the present embodiment. FIG. 6 is a connection diagram of refrigerant pipes in a modification of the refrigerator according to the present embodiment. Note that the arrows shown in FIG. 4 indicate the flow of the coolant. 5 and 6, the right front side of the main body 101 of the refrigerator 100 is the front side.

Refrigerator 100 according to the present embodiment includes refrigerant circuit 102 through which 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 condensing pipe 14, a ceiling condensing pipe 15, a rear condensing pipe 16, a right side condensing pipe 17, A dew condensation prevention pipe 18 , a dryer 19 , a capillary tube 20 as a decompression device, a cooler 21 , a muffler 22 , and a suction pipe 23 are provided. Here, the machine room condenser 13, the left side condensing pipe 14, the ceiling condensing pipe 15, the rear condensing pipe 16, the right side condensing pipe 17, and the dew condensation prevention pipe 18 condense the refrigerant flowing inside. .

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

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

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

A plurality of combinations of capillaries 20 and coolers 21 may be provided. In this case, a flow splitter such as a three-way valve for distributing the refrigerant to each capillary 20 is installed on the upstream side of each capillary 20 . Also, the machine room condenser 13, the ceiling surface condensation pipe 15, and the back surface condensation pipe 16 may not be provided as long as the left side surface condensation pipe 14 and the right side surface condensation pipe 17 alone can increase the condensation capacity. .

As shown in FIG. 5, the dew condensation prevention piping 18 is installed around the opening of the refrigerator compartment 1, the ice making compartment 2, the small freezer compartment 3, the freezer compartment 4, and the vegetable compartment. 5 is disposed on a front flange portion 70 that forms the periphery of the opening of . That is, the condensation prevention pipe 18 is arranged on the front flange portion 70 so as to surround the opening of each storage compartment. Also, the dew condensation prevention pipe 18 is connected to the right side condensation pipe 17 at the bottom of the right side of the main body 101, and is connected to the dryer 19 arranged in the machine room 34 at the bottom of the left side of the main body 101. there is

In addition, when the heat insulation performance of the wall portion of the refrigerator compartment 1 in the main body 101 is good, as shown in FIG. , may be arranged on the front flange portion 70 . In other words, the dew condensation prevention pipe 18 does not need to be arranged in the portion of the front flange portion 70 that constitutes the periphery of the opening of the refrigerator compartment 1 . Here, the case where the wall portion of the refrigerating chamber 1 in the main body 101 has good insulation performance means, for example, the distance between the inner box and the outer box in the portion of the main body 101 serving as the wall portion of the refrigerating chamber 1. is large. That is, when the portion of the main body 101 that becomes the wall portion of the refrigerating chamber 1 has good heat insulation performance, for example, the case where the portion of the main body 101 that becomes the wall portion of the refrigerating chamber 1 has a large thickness. Further, for example, when the wall portion of the refrigerating chamber 1 in the main body 101 has good heat insulating performance, the wall portion of the refrigerating chamber 1 in the main body 101 is provided with a vacuum insulation material between the inner box and the outer box. is provided. By reducing the length of the anti-condensation pipe 18, the material cost and the manufacturing cost involved in arranging the anti-condensation pipe 18 can be reduced.

Here, in the structure shown in FIG. 6 , of the portions forming the periphery of the opening of the refrigerating chamber 1 in the front flange portion 70 , the dew prevention pipes 18 are provided on the upper, left, and right portions 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 lowered compared to the case where the dew prevention pipe 18 is arranged. Therefore, there is concern that the temperature of the fins 63 and 65 blocking the front of the upper gap 66 will drop, and dew condensation will occur around the fins 63 and 65 . However, by constructing the structure around the partition plate 8 as described later, the temperature drop of the fins 63 and 65 can be suppressed, and the occurrence of dew condensation around the fins 63 and 65 can be suppressed.

FIG. 7 is a longitudinal sectional view showing the upper portion of the refrigerator according to this embodiment. In addition, in FIG. 7 , the left side of the paper surface is the front side of the refrigerator 100 .
A control device 29 is provided on the back side of main body 101 of 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. Note that the CPU is also called a central processing unit, a processing unit, an arithmetic unit, a microprocessor, a microcomputer, or a processor.

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

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

A part of the functions of the control device 29 may be realized by dedicated hardware, and a part thereof may be realized by software or firmware.

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

Here, wind 35a to wind 35e indicated by white arrows in FIG. is shown. Heat 33a to heat 33d indicated by outline arrows in FIG. Heat 33 a indicates heat intrusion into the refrigerator compartment 1 from the ceiling 69 of the refrigerator compartment 1 . The heat 33b indicates heat intrusion into the refrigerator compartment 1 from the left door 6 or the right door 7. FIG. Heat 33c indicates heat intrusion into the refrigerator compartment 1 from the rear surface of the refrigerator compartment 1 . Heat 33d indicates heat transfer from the refrigerator compartment 1 to the ice making compartment 2 or the small freezer compartment 3, which has a lower temperature than the refrigerator compartment 1. FIG. As for other heat intrusion, there is also heat infiltrating from the side surface of the refrigerating chamber 1, but in FIG. The size of the white arrows indicating the winds 35a to 35e indicates the magnitude of the air volume. For example, the wind 35a indicates that the wind volume is greater than the wind 35e. In addition, the size of the white arrows indicating heat 33a to heat 33d indicates the amount of heat transfer. For example, the heat 33a indicates that the amount of heat transfer is greater than that of the heat 33d.

The interior of the refrigerator compartment 1 is partitioned into a plurality of storage areas by a plurality of shelves 30 . A chilled compartment 27 whose temperature is lower than the temperature of the refrigerating compartment 1 is provided under the lowest shelf 30 in the refrigerating compartment 1 . For example, the temperature of the refrigerator compartment 1 is approximately 3°C and the temperature of the chilled compartment 27 is approximately 0°C. The chilled chamber 27 is provided with a chilled case 28 for storing food. In addition, outlets 37a to 37e through which winds 35a to 35e are blown out from the refrigerating-compartment air passage 24 are formed in respective portions of the wall on the far side of the refrigerating compartment 1, which are partitioned by the plurality of shelves 30. It is

Here, in the refrigerator compartment 1, the temperature rises more easily in the upper part where high-temperature air tends to gather than in the lower part. When the refrigerator compartment 1 is positioned at the top of the storage compartment as in the present embodiment, the temperature of the upper part of the refrigerator compartment 1 rises more than that of the lower part due to the heat entering from the ceiling 69 . easier. Therefore, as the air volume blown out from the outlets 37a to 37e formed in the wall on the back side of the refrigerating chamber 1, the air volume at the top of each portion of the interior of the refrigerating chamber 1 partitioned by the plurality of shelves 30 is the largest. I try to do more. That is, more cold air is supplied to the upper portion of the refrigerator compartment 1 than to the lower portion. Thereby, the temperature distribution of each partitioned portion 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 cooled more easily than the area around the lower gap 67 . In other words, in the conventional refrigerator, the fins 63 and 65 blocking the front of the upper gap 66 are cooled more easily than the fins 75 and 76 blocking the front of the lower gap 67 . For this reason, in the conventional refrigerator, the energization rate of the heater 43 of the partition plate 8 is increased until the fins 63 and 65 blocking the front of the upper gap 66 can be heated to a temperature at which condensation does not occur. However, with 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 defined as 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 this 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-shaped 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 side resin member 53 .

The surface sheet metal 42 is a member that forms the front surface of the partition plate 8 when the opening of the refrigerator compartment 1 is closed by the left door 6 and the right door 7 . That is, the surface sheet metal 42 is a member with which the gaskets 62 and 64 are in close contact when the opening of the refrigerator compartment 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 . A 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 the claws (not shown) of the surface frame-type resin member 44 on the claw receiving portions 57 of the surface sheet metal 42 . The rear-side resin member 53 is a member that forms the rear surface of the partition plate 8 when the opening of the refrigerator compartment 1 is closed by the left door 6 and the right door 7 . A substantially cylindrical recess 79 recessed downward is formed in the upper end portion of the rear-side resin member 53 . A substantially cylindrical recess 83 recessed upward is formed at the lower end of the rear-side resin member 53 .

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

A first groove portion 73 is formed in the upper portion of the upper cover member 48 . As shown in FIG. 15, which will be described later, a guide member 71 provided on the upper surface of the refrigerator compartment 1 has a projection 72 projecting downward. When closing the opening of the refrigerator compartment 1 with the left door 6 , the projection 72 is inserted into the first groove 73 of the upper cover member 48 . When closing the opening of the refrigerator compartment 1 with the left door 6 , the partition plate 8 is guided by the projections 72 inserted into the first grooves 73 and rotated.

The lower hinge member 51 includes a body portion 51a, an arm portion 81 extending laterally from the body portion 51a, and a substantially cylindrical shaft portion 82 extending upward from the arm portion 81. As shown in FIG. The upper portion of the shaft portion 82 is rotatably inserted into the concave portion 83 of the rear-side resin member 53 . The lower cover member 50 is a member forming the lower end portion of the partition plate 8 . The lower cover member 50 covers the lower end portion of the rear-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 rear side resin member 53 by screwing the male screw 46c into a female screw portion (not shown) formed at the lower end of the rear side 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 stop 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 left door 6 closes the opening of the refrigerator compartment 1 . Rear side resin in a state where the first male screw 46a, the plurality of male screws 46c, the spring stopper 47, the upper cover member 48, the upper hinge member 49, the lower cover member 50, the lower hinge member 51, and the spring 52 are 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 . Thereby, 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 surface sheet metal 42 by hooking the claws 68 of the surface 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 that constitute the partition plate of the refrigerator according to the present embodiment. FIG. 10 is a perspective view showing a part of the cord-shaped heater constituting the heater of the partition plate of the refrigerator according to the present embodiment. Note that FIG. 9 shows the state before the heater 43 is attached to the surface metal plate 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. As shown in FIG. As shown in FIG. 10, the cord-shaped heater 56 has a heating wire 59 such as a nichrome wire wound around a core material 58 such as glass fiber at equal pitches. A core material 58 around which the heating wires 59 are wound at an equal pitch is covered with an insulating coating material 60 and an insulating coating material 61 such as polyvinyl chloride. In the cord-shaped heater 56, the heating wire 59 does not have to be wound around the core material 58 at a strictly equal pitch.

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 is held by the aluminum foil 54 in a shape extending vertically while meandering in the horizontal direction. 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 a double-sided tape 55 . Note that the cord-shaped heater 56 and the aluminum foil 54 may be attached to the back side of the surface sheet metal 42 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 . Such a cord-shaped heater 56 is hereinafter referred to as a variable pitch heater. By making the cord-shaped heater 56 a variable-pitch heater, for example, the winding pitch of the heating wire 59 is varied at the upper, lower, and central portions of the partition plate 8, and the cord-shaped heaters are arranged at the upper, lower, and central portions of the partition plate 8. The calorific value of 56 can be different. As a result, it is possible to suppress the temperature rise in the part of the partition plate 8 where dew condensation is unlikely to occur. However, the variable pitch heater requires a device capable of changing the feeding speed of the core material 58 in manufacturing. Also, the variable pitch heater takes a long time to manufacture. Therefore, the variable-pitch heater is more expensive than the cord-like heater 56 in which the heating wire 59 is wound at an equal pitch. 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 manufacturing cost and power consumption during 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 refrigerating compartment side. 12 is an enlarged view of part A in FIG. 11. FIG. 13 is an enlarged view of the B portion of FIG. 11. FIG.

The partition plate 8 assembled as shown in FIG. 8 is attached to the left door 6 as shown in FIGS. 11-13. Specifically, the body portion 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 portion 51a of the lower hinge member 51 of the partition plate 8 is fixed to the inner plate 87 of the left door 6 with the second male screw 46b provided on the left door 6. As shown in FIG. At this time, the upper hinge member 49 and the lower hinge member are arranged so that the axial center of the shaft portion 78 of the upper hinge member 49 and the axial center of the shaft portion 82 of the lower hinge member 51 are aligned with the shaft 104 extending in the vertical direction. 51 is attached to the inner plate 87 of the left door 6 . Thereby, the partition plate 8 can rotate around the shaft 104 .

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

The first cover member 89 is provided on the guide member 71 so as to be vertically movable. In addition, the first cover member 89 is in a state in which the left door 6 and the right door 7 open the opening of the refrigerating chamber 1 when the left door 6 and the right door 7 close the opening of the refrigerating chamber 1 . , and comes into contact with the upper end of the partition plate 8 . The first cover member 89 is arranged so that the upper gap 66 formed between the guide member 71 and the upper end portion of the partition plate 8 when the left door 6 and the right door 7 close the opening of the refrigerator compartment 1 . and at least a portion of the sides of the upper gap 66 and the back of the upper gap 66 .

The second cover member 93 is provided on the partition plate 8 so as to be vertically movable. Further, the second cover member 93 is in a state in which the left door 6 and the right door 7 open the opening of the refrigerator compartment 1 when the left door 6 and the right door 7 close the opening of the refrigerator compartment 1 . , 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 when the left door 6 and the right door 7 close the opening of the refrigerating chamber 1 . It covers at least part of the sides of the lower gap 67 and the back of the lower gap 67 .

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 below with reference to FIGS. 14 to 16. FIG. 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 refrigerating compartment of the refrigerator according to the present embodiment, viewed from the front right. 15 and 16 are longitudinal sectional views showing the periphery of the guide member provided on the upper surface of the refrigerating compartment of the refrigerator according to this embodiment. 15 and 16, the left side of the paper surface is the front side of the refrigerator 100. As shown in 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, the guide member 71 for rotating the partition plate 8 is formed on the top surface of the refrigerator compartment 1 . The first cover member 89 has a shape that covers at least the lower portion of the guide member 71 , the back portion of the guide member 71 , and at least a portion of the side portion of the guide member 71 . In this embodiment, the first cover member 89 has, for example, a substantially box-like shape with an open top. Specifically, the first cover member 89 has a bottom portion 89a. Further, the first cover member 89 has a rear 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 has a side surface portion 89c forming a left side surface portion and a side surface portion 89c forming a right side surface portion.

A through hole 90 into which the projection 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. This allows the first cover member 89 to move up and down stably. Moreover, the projection 72 is a structure conventionally provided in refrigerators. Therefore, it is not necessary to provide a dedicated guide for vertical movement of the first cover member 89, and an increase in manufacturing cost of the refrigerator 100 when the first cover member 89 is provided can be suppressed.

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 so that the bottom portion 89a is located at the upper end of the partition plate 8. be in contact. In this state, the back portion 89 b 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 . For this reason, the cold air that tries to flow into the upper gap 66 from behind the upper gap 66 can be blocked. Also, in this state, the side surface portion 89 c of the first cover member 89 covers at least a portion of the side portion of the upper gap 66 . Therefore, it is possible to block at least part of the cool air that is about to flow into the upper gap 66 from the side of the upper gap 66 . Therefore, refrigerator 100 can suppress cold air from flowing into upper gap 66 more than conventionally. In other words, refrigerator 100 can prevent fins 63 and 65 blocking the front of upper gap 66 from being cooled by cold air flowing into upper gap 66 compared to the conventional refrigerator.

In the present embodiment, when the left door 6 and the right door 7 close the opening of the refrigerating chamber 1, the side portion 89c of the first cover member 89 covers the entire side portion of the upper gap 66. covering. Therefore, all of the cool air that tries to flow into the upper gap 66 from the sides of the upper gap 66 can be blocked. Therefore, refrigerator 100 can further suppress cold air from flowing into upper gap 66 . In other words, refrigerator 100 can further prevent fins 63 and 65 blocking the front of upper gap 66 from being cooled by cold air flowing into upper gap 66 . Furthermore, in the present embodiment, when the left door 6 and the right door 7 close the opening of the refrigerator compartment 1, the front surface portion 89d of the first cover member 89 is positioned between the upper gap 66, the fin portion 63, and the fin portion. The portion 65 is covered. Therefore, it is possible to prevent the cold air flowing into the upper gap 66 from coming into contact with the fins 63 and 65 . Therefore, the refrigerator 100 can further prevent the fins 63 and 65 blocking the front of the upper gap 66 from being cooled by the cold air flowing into the upper gap 66 .

Further, as shown in FIG. 16, when opening the left door 6 and the right door 7 to open the opening of the refrigerator compartment 1, the first cover member 89 is raised. Therefore, when the left door 6 and the right door 7 are opened, the first cover member 89 and the upper end of the partition plate 8 can be prevented from rubbing against each other.

Here, the mechanism for vertically moving the first cover member 89 is not particularly limited. It constitutes a mechanism to move. The spring 92 pulls 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 other of the upper end portion of the partition plate 8 and the first cover member 89 . In addition, when the left door 6 and the right door 7 close the opening of the refrigerator compartment 1 , the first ferromagnetic member faces the first permanent magnet 91 .

Note that the first permanent magnet 91 is provided on the first cover member 89 in the present embodiment. Moreover, in this embodiment, the first male screw 46a provided at the upper end of the partition plate 8 is made 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, thereby suppressing an increase in the manufacturing cost of the refrigerator 100. can.

When the spring 92, the first permanent magnet 91 and the first ferromagnetic member are used to form a mechanism for moving the first cover member 89 up and down, 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 refrigerator compartment 1, the magnetic force acting between the first permanent magnet 91 and the first male screw 46a, which is the first ferromagnetic member, As shown at 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 causes the first cover member 89 to rise. To construct a mechanism for vertically moving the first cover member 89 at low cost by constructing a mechanism for vertically moving the first cover member 89 using a spring 92, a first permanent magnet 91 and a first ferromagnetic member. can be done.

FIG. 17 is a longitudinal sectional view showing the periphery of the lower end portion of the partition plate in the refrigerator according to this embodiment. In addition, in FIG. 17 , the left side of the paper surface is the front side of the refrigerator 100 . Also, FIG. 17 shows a state in which the second cover member 93 is lowered. 18 and 19 are perspective views of the periphery of the lower end portion of the partition plate in the refrigerator according to the present embodiment, viewed from the refrigerating 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 covers at least the rear portion of the partition plate 8 and at least 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 plan view. Specifically, the second cover member 93 includes a rear portion 93a facing the rear side resin member 53 which is the rear portion of the partition plate 8, a side portion 93b facing the left side portion of the partition plate 8, a partition plate 8 and the opposite side portion 93b.

The rear surface portion 93a of the second cover member 93 is formed with an elongated hole 96 extending in the vertical direction. A fastener 97 such as, for example, a male screw passes through the elongated hole 96 . The rear portion 93 a of the second cover member 93 is supported between the head portion of the fastener 97 and the partition plate 8 , so that the second cover member 93 does not come off the partition plate 8 . Also, the distance between the head portion of the fastener 97 and the partition plate 8 is greater than the thickness of the back surface portion 93 a 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 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 is lowered to the lower surface portion 38 of the refrigerating chamber 1. Contact. In this state, the rear surface portion 93 a of the second cover member 93 covers the rear portion of the lower gap 67 formed between the lower surface portion 38 of the refrigerator compartment 1 and the lower end portion of the partition plate 8 . Therefore, it is possible to block cold air from flowing into the lower gap 67 from behind the lower gap 67 . Further, in this state, the side surface portion 93 b of the second cover member 93 covers at least a portion of the side portion of the lower gap 67 . Therefore, it is possible to block at least part of the cool air that is about to flow into the lower gap 67 from the side of the lower gap 67 . Therefore, refrigerator 100 can suppress cold air from flowing into lower gap 67 more than conventionally. In other words, refrigerator 100 can prevent fins 75 and 76 blocking the front of lower gap 67 from being cooled by cold air flowing into lower gap 67 compared to the conventional refrigerator.

In this embodiment, when the left door 6 and the right door 7 close the opening of the refrigerator compartment 1, the side surface portion 93b of the second cover member 93 covers the entire side portion of the lower gap 67. covering. Therefore, all of the cool air that tries to flow into the lower gap 67 from the sides of the lower gap 67 can be blocked. Therefore, refrigerator 100 can further suppress cold air from flowing into lower gap 67 . In other words, refrigerator 100 can further prevent fins 75 and 76 blocking the front of lower gap 67 from being cooled by cold air flowing into lower gap 67 .

Further, in the present embodiment, a second groove portion 95 is formed in the lower surface portion 38 of the refrigerator compartment 1 . When the left door 6 and right door 7 close the opening of the refrigerator compartment 1 , the lower end of the second cover member 93 is inserted into the second groove 95 . This improves the sealing performance between the lower surface portion 38 of the refrigerator compartment 1 and the lower end portion of the second cover member 93 . Therefore, cold air can be prevented from flowing into the lower gap 67 from between the lower surface portion 38 of the refrigerator compartment 1 and the lower end portion of the second cover member 93 . Therefore, the refrigerator 100 can further prevent the fins 75 and 76 blocking the front of the lower gap 67 from being cooled by the cold air flowing 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 refrigerator compartment 1, the second cover member 93 is lifted. 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 refrigerator compartment 1 .

Here, the mechanism for vertically moving the second cover member 93 is not particularly limited, but in this embodiment, a mechanism for vertically moving the second cover member 93 using the second permanent magnet 94 and the second ferromagnetic member. constitutes 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. A second ferromagnetic member is provided on the other of the left door 6 and the second cover member 93 . When the left door 6 and the right door 7 open the opening of the refrigerator compartment 1, the second ferromagnetic member faces the second permanent magnet 94 in the horizontal direction.

In addition, 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 rear surface portion 93 a of the second cover member 93 . Further, in this embodiment, the second male screw 46b provided on the left door 6 is made of a ferromagnetic material, and the second male screw 46b is used as a 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, thereby suppressing an increase in the manufacturing cost of the refrigerator 100. can.

When a mechanism for vertically moving the second cover member 93 is constructed using the second permanent magnet 94 and the second ferromagnetic member, the second cover member 93 moves vertically as follows. When closing the opening of the refrigerator compartment 1 with the left door 6 and the right door 7, as shown in FIG. Plate 8 rotates. Therefore, at the position of the partition plate 8 where the left door 6 and the right door 7 close the opening of the refrigerator compartment 1, the second permanent magnet 94 and the second male screw 46b, which is the second ferromagnetic member, 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, is reduced. As a result, the second cover member 93 drops under its own weight. That is, the second cover member 93 descends under its own weight.

As the left door 6 and the right door 7 are opened, as shown in FIG. 19, 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. . 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, increases. At the position of the partition plate 8 where the right door 7 opens the opening of the refrigerator compartment 1, the second cover member 93 is raised. By constructing a mechanism for vertically moving the second cover member 93 using the second permanent magnet 94 and the second ferromagnetic member, the mechanism for vertically moving the second cover member 93 can be constructed at low cost.

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

An example of the duty ratio calculation formula stored in the control device 29 is given by the following formula (1).
Conductivity = C x ambient humidity + D (1)
Here, C and D are coefficients determined by subtracting the refrigerator compartment temperature from the outside air temperature. That is, C and D change depending on the value obtained by subtracting the refrigerating compartment 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 compartment temperature detected by the refrigerating compartment temperature sensor 32, and the above-described energization rate calculation formula. to determine the energization rate to the heater 43 . 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, and the fin portion 76. This is the energization rate at which dew condensation does not occur.

The energization rate calculated from the energization rate calculation formula becomes larger as the outside air temperature and outside air humidity become higher, and becomes larger as the refrigerator compartment temperature becomes lower. Then, the controller 29 energizes the heater 43 at the energization rate determined by the calculation. Therefore, if the outside air temperature and the outside air humidity are low and the refrigerator compartment temperature is high, the energization rate to 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 fins 63 and 65 blocking the front of the upper gap 66 are the most likely to be cooled by cold air. That is, in the conventional refrigerator, the fins 63 and 65 blocking 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 of the heater 43 is such that dew condensation does not occur on the fin portions 63 and 65 .

Therefore, in the present embodiment, as described above, the first cover member 89 suppresses cold air from flowing into the upper gap 66, and cools the fins 63 and 65 blocking the front of the upper gap 66. This is suppressed more than before. As a result, in refrigerator 100 according to the present embodiment, it is possible to suppress the occurrence of dew condensation on fins 63 and 65 even if the energization rate of heater 43 is lower than in the conventional case. Therefore, refrigerator 100 according to the present embodiment can suppress dew condensation while suppressing an increase in power consumption by heater 43 more than conventionally.

By the way, as a result of suppressing cooling of the fins 63 and 65 by the first cover member 89, the fins 75 and 76 blocking the front of the lower gap 67 are the most likely to be cooled by cold air. That is, the fins 75 and 76 blocking 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 cold air from flowing into the lower gap 67, and cools the fins 75 and 76 blocking the front of the lower gap 67. more restrained than Thus, in refrigerator 100 according to the present embodiment, it is possible to suppress the occurrence of dew condensation even if the energization rate of heater 43 is further reduced. Therefore, refrigerator 100 according to the present embodiment can suppress dew condensation while further suppressing an increase in power consumption by heater 43 .

Note that 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 can be configured without the surface frame type resin member 44 .

As described above, refrigerator 100 according to the present embodiment includes main body 101 , double-opening first and second doors, partition plate 8 , guide member 71 , and first cover member 89 . The main body 101 has a storage chamber with an opening formed on the front side. The double door type first and second doors cover the opening of the storage compartment of the main body 101 so as to be openable and closable. In addition, in the above description, the first door is the left door 6 and the second door is the right door 7 . In the above description, the double-opening first door and second door openably cover the opening of the refrigerator compartment 1, which is one of the storage compartments. The partition plate 8 has a heater 43 and is rotatably provided on the first door. The gap between them is closed 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 vertically movable. In addition, the first cover member 89, in a state in which the first door and the second door close the opening of the storage chamber, is more flexible than in a state in which the first door and the second door open the opening of the storage chamber. It descends to contact the upper end of the partition plate 8, and at least part of the side of the upper gap 66 formed between the guide member 71 and the upper end of the partition plate 8 and the back of the upper gap 66. covering.

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

Reference Signs List 1 refrigerating chamber 2 ice making chamber 3 small freezer chamber 4 freezer chamber 5 vegetable chamber 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 condensation pipe, 15 Ceiling surface condensation pipe, 16 Rear condensation pipe, 17 Right side condensation pipe, 18 Dew condensation prevention pipe, 19 Dryer, 20 Capillary tube, 21 Cooler, 22 Muffler, 23 suction pipe, 24 refrigerating compartment outlet air passage, 26 pocket, 27 chilled compartment, 28 chilled case, 29 control device, 30 shelf, 31 damper device for refrigerating compartment, 32 refrigerating compartment temperature sensor, 33a to 33d heat, 34 machine room, 35a to 35e wind, 37a to 37e outlet, 38 lower surface portion, 42 surface sheet metal, 43 heater, 44 surface frame-shaped resin member, 45 heat insulating material, 46a first male screw, 46b second male screw, 46c male screw, 47 spring stopper 48 upper cover member 49 upper hinge member 49a body portion 50 lower cover member 51 lower hinge member 51a body portion 52 spring 53 rear 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 claw, 69 ceiling, 70 front flange, 71 guide member, 72 projection, 73 first groove, 75 fin, 76 fin, 77 arm, 78 shaft, 79 recess, 81 arm, 82 shaft, 83 recessed portion 85 baffle 87 inner plate 88 inner plate 89 first cover member 89a bottom portion 89b back portion 89c side portion 89d front portion 90 through hole 91 first permanent magnet 92 spring 93 Second cover member 93a rear surface 93b side surface 94 second permanent magnet 95 second groove 96 long hole 97 fastener 98 cap component 99 door surface panel 100 refrigerator 101 main body 102 refrigerant circuit , 103 setting operation unit, 104 axis.

Claims (13)

a main body having a storage chamber with an opening formed on the front side;
double-door first and second doors that open and close the opening;
It has a heater and is rotatably provided on the first door, and in a state where the first door and the second door close the opening, a gap between the first door and the second door. A partition plate that closes the from the storage room side,
a guide member provided on the upper surface of the storage chamber for rotating the partition plate;
a first cover member provided on the guide member so as to be vertically movable;
with
In a state where the first door and the second door close the opening, the first cover member is lower than in a state where the first door and the second door open the opening. contacting the upper end of the partition plate and covering at least a portion 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 for pulling up the first cover member;
a first permanent magnet provided on one of the upper end portion of the partition plate and the first cover member;
provided on the other of the upper end portion of the partition plate and the first cover member, and the first permanent cover member at the position of the partition plate in a state where the opening is closed by the first door and the second door; a first ferromagnetic member vertically opposed to the magnet;
with
In a state where the first door and the second door close the opening, the magnetic force acting between the first permanent magnet and the first ferromagnetic member lowers the first cover member. The refrigerator according to claim 1. In a state where the first door and the second door open the opening, the first cover member closes the opening by the force of the spring. 3. The refrigerator according to claim 2, wherein the refrigerator is higher than the standing state. The partition plate includes an upper cover member forming 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,
4. The refrigerator according to claim 2, wherein said first male screw is said first ferromagnetic member. 5. The first cover member covers all sides of the upper gap when the first door and the second door close the opening. Refrigerator according to item 1. The guide member has a protrusion protruding downward,
A first groove portion into which the projection is inserted is formed in the upper end portion of the partition plate,
The partition plate is configured to rotate while being guided by the protrusion inserted into the first groove when the opening is closed by the first door,
The refrigerator according to any one of claims 1 to 5, wherein the first cover member has a through hole into which the protrusion is inserted. A second cover member provided on the partition plate so as to be movable in the vertical direction,
In a state where the first door and the second door close the opening, the second cover member is lower than in a state where the first door and the second door open the opening. contacting the lower surface of the storage chamber and covering at least a portion of the sides of a lower gap formed between the lower surface and the lower end of the partition plate and the back of the lower gap. The refrigerator according to any one of claims 1 to 6. a second permanent magnet provided on one of the first door and the second cover member;
provided on the other of the first door and the second cover member, and laterally with the second permanent magnet at the position of the partition plate in a state where the first door and the second door open the opening a 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 when the first door and the second door close the opening. 8. The refrigerator according to claim 7, which has a structure in which the refrigerator disappears and falls by its own weight. The second cover member is positioned between the second permanent magnet and the second ferromagnetic member at the position of the partition plate in a state where the opening is opened by the first door and the second door. 9. The refrigerator according to claim 8, wherein the first door and the second door are lifted by the acting magnetic force and are higher than the state in which the opening is closed. The first door has a second male screw that secures the partition plate to the first door,
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 in the lower surface of the storage chamber,
11. The lower end of the second cover member is inserted into the second groove when the first door and the second door close the opening. Refrigerator as described in section. 12. A structure according to any one of claims 7 to 11, wherein in a state in which the first door and the second door close the opening, the second cover member covers the entire side portion of the lower gap. Refrigerator according to item 1. The second cover member has an elongated hole through which a fastener penetrates in the rear portion, and the second cover member can be vertically moved in the vertical direction of the elongated hole by the fastener.
The refrigerator according to any one of claims 7 to 12.

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