JP2014025619A - Refrigerator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To suppress flow of cold air toward the vicinity of a door inside a storage container.SOLUTION: Two or more containers 2 and 1 are vertically arranged inside a storage container having a drawer door 9, a cold air blow-off port 12 and a cold air return port 15. The respective containers 2 and 1 are both closed on a front surface and have at least an upper surface opening respectively, the container 2 positioned at the uppermost is provided with a lid 3 for covering a front part of the upper surface opening, and the cold air blow-off port 12 and the cold air return port 15 are disposed at a position facing an upper surface rear part not covered with the lid 3 of the container positioned at the uppermost.

Description

  The present invention relates to a refrigerator in which two or more containers are arranged in the upper and lower sides inside a storage.

  Conventionally, in a refrigerator, for example, a refrigerator in which two or more containers are arranged above and below in a freezer compartment, the front part of the upper surface opening of the container located below is covered with the container located above to cool the air. There is one that is introduced into the container from the upper rear portion that is not covered by the container located above each container (see, for example, Patent Documents 1 to 3).

  Further, in a refrigerator having a freezer compartment that is opened and closed by a drawer door and having a container that is pulled out together with the drawer door in the freezer compartment, a lid member that covers the upper surface opening of the container and has an opening, and a rear surface of the freezer compartment A cool air outlet is provided above the lid member and blows out cool air sent by a blower to the freezer compartment, and the container has a front opening that can be opened and closed at a position positioned in front of the upper surface opening. (See, for example, Patent Document 4).

JP 2010-127544 A (FIG. 2) JP 2009-85538 A (FIG. 2) JP 2009-133504 A (FIG. 2) JP 2008-57917 A (FIG. 6)

  However, according to the techniques described in Patent Documents 1 to 3, a gap is generated between the container located at the uppermost position and the ceiling surface of the freezer compartment, and this serves as an air path for directing cool air to the vicinity of the door. For this reason, in the vicinity of the door, cold air blows down from above. The cold air blown down becomes warm cold air that is distributed outside the container near the door, or the heat of the heat-dissipating heat spreader stretched around the door, resulting in extra warm air. Return to the cooler. For this reason, the cooler was forced to bear an excessive burden.

  In addition, a gap is also generated between the door side edge portions of the containers adjacent in the vertical direction, and a flow of cold air is generated from there toward the door side. The cold air leaking from the gap between the edges on the door side of this container removes the heat near the door and the heat of the radiator as well as the above-mentioned cold air blow down, and becomes cool air with extra warm air in the cooler. Returning, there was the difficulty of forcing an excessive burden on the cooler.

  Moreover, according to the technique described in Patent Document 4, a lid is provided on the upper surface opening of the container, the opening is provided in the lid, and cold air can be introduced into the container from the opening. However, even in the technique described in Patent Document 4, since the opening serving as an outlet for the cold air flowing into the container is disposed in the front surface portion (near the door), the door side is a part of the return air passage. Therefore, the cold air passing through the container and passing through the door side takes the heat near the door and the heat of the radiator, returns to the cooler as extra warm air, and imposes an excessive burden on the cooler was there.

  The present invention has been made to solve the above-described problems, and an object thereof is to suppress the flow of cold air toward the vicinity of a door in a storage.

  The refrigerator according to the present invention is a refrigerator in which two or more containers are arranged in the upper and lower sides inside a storage room having a drawer door, a cold air outlet, and a cold air return port. Each container has at least an upper surface opening, and the container located at the top of each container is provided with a lid that covers the front part of the upper surface opening, and the cold air outlet and the cold air return are at the uppermost position. It is arrange | positioned in the position which faces the upper surface rear part which is not covered with the said lid | cover of the container located in.

According to the refrigerator of the present invention, the lid that covers the front part of the upper surface opening of the container that is positioned at the uppermost position and whose front is closed is provided, and the cool air is positioned at the position facing the rear of the upper surface of the container that is not covered by the lid. Since the air outlet and the cold air return port are arranged, the cold air blown out from the cold air outlet can be directly fed into the container located at the uppermost position and returned to the cooler from the cold air return port on the back side. That is, the flow of cool air in the upper space in the storage can be completed only by circulating the cool air in the uppermost container. For this reason, the flow of cold air toward the door in the storage is suppressed, the burden on the cooler is reduced, and the energy saving effect is improved.
Moreover, since cool air can be directly introduced into the container from the upper rear portion of the uppermost container, the cooling efficiency for food is improved.

It is a front view of the storage of the refrigerator which concerns on embodiment of this invention. It is a side view of the refrigerator storage which concerns on embodiment of this invention. It is AA arrow sectional drawing of FIG. It is a BB arrow sectional view of Drawing 2. It is CC sectional view taken on the line of FIG.

  FIG. 1 is a front view of a refrigerator storage according to an embodiment of the present invention. FIG. 2 is a side view of the refrigerator storage according to the embodiment of the present invention. 3 is a cross-sectional view taken along line AA in FIG. 4 is a cross-sectional view taken along line BB in FIG. 5 is a cross-sectional view taken along the line CC of FIG.

  As shown in FIG. 1, the refrigerator according to the embodiment of the present invention is provided with a partition 4 serving as a ceiling surface of a storage (for example, a freezing room) and a partition 5 serving as a floor surface of the freezing room. The partition 4 insulates between the freezer compartment and the storage (for example, refrigerator compartment) above it. As shown in FIGS. 4 and 5, both side surfaces are also shielded from heat from the outside air by the heat insulating materials of the vacuum heat insulating material 16 and the urethane foam 17. The partition 5 insulates between the freezer compartment and the storage (for example, vegetable compartment) below it.

  The freezer compartment has an open front, and a drawer-type freezer compartment door (hereinafter referred to as “drawer door”) 9 is provided at the front opening as shown in FIG.

  As shown in FIGS. 1 and 3, two or more (two in this case) containers 2 and 1 are arranged in the freezer compartment, and are classified according to the height of food and the frequency of use. The containers 2 and 1 are both closed at the front and each has at least an upper surface opening.

  As shown in FIG. 1, the refrigerator main body is provided with heat sinks 6 for preventing dew condensation on the inner surface side where the drawer door 9 is in contact and the vicinity of the installation surface of the refrigerator main body (not shown). . These radiators 6 are installed to prevent dew condensation near the partitions 4 and 5 by opening and closing the drawer door 9 and by cool air in the warehouse, etc. It is also installed around doors). Note that the radiator 6 may be disposed on the door side where the drawer door 9 is in contact.

  Moreover, the packing for doors (not shown) which close | closes the clearance gap between these at the time of door closing is provided in any one of the drawer door 9 and the opening peripheral part of the freezer compartment of a refrigerator main body, and a side part. The door packing prevents cold air leaks and warm air from entering.

  Rails 7 are attached to both sides of the refrigerator body as shown in FIG. As shown in FIG. 2, door frames 8 are attached to the left and right sides of the back side of the drawer door 9, and the door frame 8 is supported by the left and right rails 7 on the main body side. The door frame 8 supports the container 1 positioned below. The lower container 1 is provided with flange portions (not shown) on both side surfaces, and the upper container 2 is slidably supported by the both side flange portions. Therefore, when the drawer door 9 is pulled out, the door frame 8 slides on the rail 7 of the main body, and the container 1 positioned below is pulled out together with the drawer door 9. The upper container 2 is pulled out by sliding on both side flanges of the lower container 1. That is, the upper and lower containers 2 and 1 can be pulled out relatively. Thereby, the food in the container 1 located below can be taken out by pulling out the drawer door 9, and the food in the container 2 can be taken out by pulling out the container 2 located above from the state. it can.

  A lid 3 that covers the front part of the upper surface opening of the container 2 is attached to the upper container 2 as shown in FIGS. For this reason, the lid 3 is pulled out together with the containers 1 and 2 being pulled out. The lid 3 may be arranged on the refrigerator main body side. In this case, even if the drawer door 9 is pulled out, the lid 3 is not pulled out.

  Further, in the vicinity of the front edge of the upper surface of the lid 3 on the drawer door 9 side, a rib 3a for closing a gap between the lid 3 and the ceiling partition 4 is provided as shown in FIGS. In the rear position, a cool air return port 3b is provided. The rib 3a shields the air passage 20 formed by the gap between the lid 3 and the ceiling partition 4 in the vicinity of the door. Thereby, there is no flow of cool air toward the vicinity of the door through the air passage 20, the cool air is not blown down from above the vicinity of the door, and the amount of heat taken by the cool air near the door can be suppressed. And the burden of the cooler 10 (FIG. 3) arrange | positioned at the back surface of a freezer compartment is reduced, and an energy-saving effect is improved.

  On the back surfaces of the upper and lower containers 2 and 1 in the freezer compartment, fan grills 18 that constitute an air passage 14 for sending cold air to the respective storages as shown in FIG. 3 are arranged. A cooler 10 is disposed at the rear of the fan grill 18. A fan 11 is installed on the upper surface of the cooler 10. The cool air 22 generated by the cooler 10 passes through the air passage 14 in the fan grill 18 by the fan 11 and is blown out from the cool air outlets 12 and 13 in the freezer compartment.

  In addition to the cold air outlets 12 and 13, as shown in FIGS. 3 and 4, cold air return ports 15 and 19 are installed on the back of the freezer compartment. Among these, the cold air outlet 12 and the cold air return port 15 are provided for the container 2 positioned above, and are disposed at positions facing the rear of the upper surface not covered with the lid 3 of the container 2 positioned above. ing. Specifically, it is disposed above the rear flange of the container 2 positioned above. That is, the wind direction is such that cold air is blown directly into the container 2 positioned above. Thereby, the flow of the cool air 22a in the upper space in the freezer compartment can be completed only by the circulation of the cool air 22a in the container 2 positioned above. For this reason, the flow of cold air toward the door in the freezer compartment can be suppressed, the burden on the cooler 10 is reduced, and the energy saving effect is improved.

  The cold air outlet 13 and the cold air return port 19 are provided for the container 1 positioned below. As shown in FIG. 3, the lower portion of the container 1 is covered with a container 2 positioned at the front part of the upper surface opening. The cold air outlet 13 is disposed at a position facing the rear of the upper surface that is not covered by the container 2 positioned above the container 1 positioned below. That is, the wind direction is such that cold air is blown directly into the container 1 located below. Moreover, the opening part 1a used as a container side cold air return port is provided in the side surface of the container 1 located below. In addition, a packing 21 that closes a gap between the door side edge portions of the upper and lower containers 2 and 1 is provided. Thereby, the cold air introduced into the container 1 located below the cold air outlet 13 passes through the opening 1 a on the side surface of the container 1.

Next, based on FIGS. 1-5, the cooling operation of the freezer compartment of the refrigerator which concerns on embodiment of this invention is demonstrated.
First, the cold air 22 cooled by the cooler 10 is sent to each storage by the fan 11 as shown in FIGS. That is, the cold air 22 is sent to the air passage 14 disposed in the fan grill 18. The air passage 14 is connected to the cold air outlets 12 and 13 of the freezer compartment. Among these, the cold air 22a blown out from the cold air outlet 12 flows into the container 2 from one side of the portion where the lid 3 is not covering the upper surface opening of the container 2, and cools the inside of the container 2. Then, the lid 3 returns to the cold air return port 15 from the other side portion of the portion where the upper surface opening of the container 2 is not covered.

  In this way, the cold air 22a circulates in the container 2 from one side portion to the other side portion of the portion where the lid 3 is located not covering the opening of the container 2, and to the cold air return port 15 on the back of the freezer compartment. And return. Thus, the flow of the cool air 22a in the upper space in the freezer compartment can be completed only by the circulation of the cool air in the container 2 positioned above. For this reason, the flow of the cold air toward the door vicinity in the freezer compartment can be suppressed. At that time, if the cool air 22a flows to the door side through the air passage 20 formed by the gap between the lid 3 and the ceiling partition 4, the cool air blows down from above the door. As described above, the cold air blows away the warm heat in the vicinity of the door (heat outside when opening and closing, heat of the heat sink 6 for preventing dew condensation), and returns to the cooler 10 as it is. Overload. However, in the present embodiment, since the rib 3a shields the air passage 20 near the door, there is no flow of cool air toward the door through the air passage 20, and the cool air is blown down from above the door. Disappears.

What is to be cooled is the food in the container. In order to quickly cool the food in the container 2, it is more efficient to blow out the cold air 22a directly into the container 2. Further, even when the cold air is returned, it is not necessary to put an extra burden on the cooler 10 by taking only the heat of the food.
In the present embodiment, as described above, the flow of the cold air in the upper space in the freezer compartment is completed only by the circulation of the cold air in the container 2, so that the cooling efficiency for the food is high, and the cooler 10 is supplied. Can be reduced, and the energy-saving effect is improved.

  Although the cool air return port 3b is also provided in the lid 3 as shown in FIG. 4, since the cool air return port 3b is arranged behind the rib 3a, the cool air does not flow near the door.

Next, the flow of cold air in the lower space of the freezer compartment of the refrigerator according to the embodiment of the present invention will be described.
First, the cold air cooled by the cooler 10 is sent to the air passage 14 by the fan 11 as shown in FIGS. The air passage 14 is connected to the cold air outlets 12 and 13 of the freezer compartment, and among these, the cold air outlet 13 is provided corresponding to the container 1 positioned below. The cold air 22b blown out from the cold air outlet 13 flows into the container 1 from the upper rear portion not covered by the container 2 located above the container 1 located below, cools the inside of the container 1, and It passes through the opening 1a serving as the container-side cold air return port on the side surface, and returns to the cold air return port 19 at the lower back of the freezer compartment, which is the second cold air return port.

  Also here, the cold air 22b blown out from the cold air outlet 13 is directly fed into the container 1 positioned below and returned from the opening 1a on the side surface of the container 1 to the cold air return port 19, so that High cooling efficiency.

  Moreover, since the gap between the door side edge portions of the upper and lower containers 2 and 1 is closed by the packing 21, the flow of cool air from the door side edge portions of the upper and lower containers 2 and 1 to the vicinity of the door is eliminated. The cold air 22b does not pass near the door. For this reason, even when the cold air is returned, only the heat of the food is taken away and the heat near the door is not taken away. Therefore, the burden on the cooler 10 can be reduced, and the energy saving effect is improved.

  In addition, although the case where the two containers 2 and 1 are arranged up and down inside the freezer compartment is described as an example here, the present invention is not limited to this. For example, three or more containers are arranged up and down inside a storage such as a freezer compartment, and the containers on the second and lower levels from the top are all container side cold air on the side as in the container 1 positioned below. It is good also as what has the opening part 1a used as a return port. Even in such a case, it is desirable to provide the packing 21 that closes the gap between the door side edge portions of the upper and lower containers.

  DESCRIPTION OF SYMBOLS 1 The container located in the lower part, 1a The opening part used as the container side cold air return port, 2 The container located in the upper part, 3 Lid, 3a rib, 3b The cold air return port of the lid side, 4 The partition used as the ceiling surface of a freezer compartment, 5 Freezer compartment floor, 6 radiator, 7 refrigerator body rail, 8 door frame, 9 drawer door, 10 cooler, 11 fan, 12 cold air outlet to the container located above, 13 below Cold air outlet to the located container, 14 air passages, 15 Cold air return port for the upper container, 16 Vacuum heat insulating material, 17 Foam urethane, 18 Fan grill, 19 Cold air return port for the lower container ( 2nd cold air return port), 20 air path between lid and ceiling partition, 21 packing, 22, 22a, 22b cold air.

Claims (8)

In a refrigerator in which two or more containers are arranged in the upper and lower sides inside a storage room having a drawer door, a cold air outlet and a cold air return port,
Each of the containers is closed at the front, and has at least an upper surface opening. Among the containers, the container located at the top is provided with a lid that covers the front of the upper surface opening. The refrigerator is characterized in that the cold air outlet and the cold air return port are arranged at a position facing the rear of the upper surface not covered with the lid of the uppermost container.   The refrigerator according to claim 1, wherein a rib for closing a gap between the lid and the ceiling surface of the storage is provided in the vicinity of a front edge of the upper surface of the lid on the drawer door side.   The refrigerator according to claim 1 or 2, wherein a packing is provided to close a gap between the door side edge portions of the upper and lower adjacent containers. A plurality of the cold air outlets are provided corresponding to the respective containers,
The upper and lower adjacent containers are covered with a container located on the upper part of the upper surface opening of the container located below,
The cold air outlet corresponding to the lower container is disposed at a position facing the rear of the upper surface of the lower container that is not covered by the upper container. The refrigerator in any one of Claim 3 thru | or 3.   An opening serving as a container-side cold air return port is provided in a side surface portion of the container located below the uppermost container, and a second cold air return port is provided at the lower part of the rear surface of the storage. The refrigerator according to any one of claims 1 to 4, wherein the refrigerator is provided.   6. A heatsink for preventing dew condensation is provided on an inner surface side of a portion that comes into contact with one of the storage case and the drawer door when the door is closed. Refrigerator.   The refrigerator according to any one of claims 1 to 6, wherein a door packing that closes a gap between the storage case and the drawer door when closing the door is provided. .   Each of the containers has a flange on both sides, the container located at the lowest position is supported on the drawer door side, and the container located above the container is located on the flanges on both sides of the container adjacent below. The container positioned at the lowest position is pulled out together with the drawer door, and the containers positioned above it slide on the flanges on both sides of the adjacent containers below. The refrigerator according to any one of claims 1 to 7, wherein the refrigerator is drawn out.

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