JP2006064190A - Refrigerator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a refrigerator capable of preventing drying by sublimation of water content of frozen food with a simple structure while optimally storing the frozen food. <P>SOLUTION: This refrigerator comprises a freezing chamber 5 cooled to a freezing temperature zone by the cold air blown out from a cold air blowout port 31 formed on an upper part of a back face, and a storage container 50 mounted in the freezing chamber 5 and opened at its upper face, and the upper face opening of a rear part opposite to at least the cold air blowout port 31, of the storage container 50 is closed by a cover body 70. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a refrigerator having a freezing room in which freeze-drying of frozen food is reduced.

A domestic refrigerator has a refrigerated room, a vegetable room, a freezer room cooled to a freezing temperature zone, etc. that are cooled to a refrigeration temperature zone. Generally, in a freezing room, the lower the cooling temperature, Since the storage period is long, a cold air outlet is provided at the upper back of the storage container, and cool air of about −30 ° C. is blown directly into the storage container. (For example, Patent Document 1)
JP 2004-69253 A

  However, in the conventional freezer configuration, since cold air is blown directly into the container containing the frozen food, the bag containing the food is rapidly cooled, and the temperature difference between the bag and the food becomes large. As a result of the so-called freeze-drying phenomenon in which the moisture in the food sublimes and adheres to the inner surface of the bag as a frost, a large amount of moisture sublimates from the frozen food that has been packed in the bag and forms frost on the inner peripheral surface of the bag, etc. In particular, there is a problem that the surface and corners of the frozen food are dried. When the frozen food is freeze-dried in this way, there is a problem that when the frozen food is cooked and eaten, the food is rustling and the texture is greatly deteriorated. In order to prevent the freeze-drying phenomenon as described above, the indirect cooling method employed for cooling the vegetable room may be performed, but the freezer room needs to be cooled to a low temperature of -18 ° C or lower, and indirectly. Only with simple cooling, a predetermined frozen food cannot be cooled to a freezing temperature zone, and there is a possibility that it cannot be stored frozen.

  The present invention has been made paying attention to this point, and provides a refrigerator capable of preventing drying of stored food by sublimation of moisture of frozen food with a simple structure while optimally storing frozen food. Objective.

  In order to solve the above-described problems, the present invention provides a freezer compartment that is cooled to a freezing temperature zone by cold air blown from a cold air outlet provided above the back surface, and a storage container having an upper surface provided in the freezer compartment. And at least a rear upper surface opening facing the cold air outlet in the storage container is closed by a lid.

  According to the above invention, the frozen food stored in the storage container is not directly blown by the lid to the frozen food in the storage container, so the bag storing the frozen food is rapidly cooled. Can be prevented. Accordingly, the temperature difference between the frozen food and the bag becomes small, and the movement of moisture due to these temperature differences is suppressed, so that sublimation of moisture from the frozen food can be suppressed and drying can be prevented.

  Hereinafter, a first embodiment of the present invention will be described with reference to FIGS.

  FIG. 1 is a longitudinal sectional view schematically showing the configuration of the refrigerator body 1. In FIG. 1, a refrigerator body 1 includes a refrigerator compartment 3 and a vegetable compartment 4 that are cooled to a refrigeration temperature zone, for example, 1 to 5 ° C. For example, the first and second freezer compartments 5 and 6 are cooled to −18 to −25 ° C., and the storage compartments 3 to 6 are hinged open / closed refrigerator doors 7, The drawer-type vegetable compartment door 8, the first freezer compartment door 9, and the second freezer compartment door 10 are closed. Although not shown in FIG. 1, an ice making freezer compartment is provided alongside the first freezer compartment 5 and is closed by an ice making freezer compartment door.

The refrigerator compartment 3 and the vegetable compartment 4 are partitioned vertically by a partition plate 11, and a vegetable storage container 12 attached to the back side of the vegetable compartment door 8 is accommodated in the vegetable compartment 4 so that it can be put in and out. Yes.
A space between the vegetable compartment 4 and the first freezer compartment 5 and an ice making freezer compartment (not shown) is vertically divided by a heat insulating partition wall 13. The first freezer compartment 5, the ice making freezer compartment and the second freezer compartment 6 The space between the first freezer compartment 5 and the ice making freezer compartment is also divided right and left by a heat insulating partition wall (not shown). Is configured in a spatially and thermally independent form from the other chambers.
In the first freezer compartment 5 and the second freezer compartment 6, storage containers 50 and 80 connected to the back sides of the doors 9 and 10 and pulled out of the cabinet in response to the opening operation are stored in a removable manner. Yes.

  On the other hand, a refrigeration room cooler room (hereinafter referred to as R-evaporation room) 18 is formed in the rear side portion of the vegetable room 4, and the refrigerating room constituting the refrigeration cycle apparatus 17 is formed in the R-evaluation room 18. A cooler (hereinafter referred to as R fan) 19 is provided, and a refrigeration room blower fan (hereinafter referred to as R fan) 20 that can be driven at a variable speed (for example, 1800 to 2400 rpm) is provided at the top thereof. In a state where the R fan 20 is driven, the cold air generated by the R evaporator 19 is supplied to the refrigerator compartment 3 and the vegetable compartment 4 and then returned to the lower part of the R evaporator compartment 18 so as to perform circulation. It has become.

  In addition, a freezer compartment cooler chamber (hereinafter referred to as F-evaporator chamber) 22 is formed on the back side of the first freezer compartment 5, the ice making freezer compartment (not shown), and the second freezer compartment 6. The F-evacuation chamber 22 is provided with a freezer compartment evaporator (hereinafter referred to as F-eva) 23 that constitutes the refrigeration cycle device 17, and can be driven at a variable speed (for example, 1800 to 180). 2400 rpm) freezer compartment fan (hereinafter referred to as F fan) 24 is provided. Here, the F-eva 23 is provided with an F-eva defrost heater 25 made of a pipe heater.

  Here, the downstream side (cold air blowing side) of the F fan 24 provided in the F-evaporation chamber 22 is connected to the first freezing chamber 5 as shown in FIGS. When the F fan 24 is driven, the cold air is supplied to the first freezing room 5, the ice making freezer room, and the second freezing room 6 and then again F. Circulation is performed so as to be returned to the lower part in the evaporation chamber 22.

  The first cold air outlet 31 that blows the cold air generated by the F-evacuation 23 to the first freezer compartment 5 is provided at an opposed position on the upper back of the storage container 50, and is substantially the upper surface of the storage container 50. It is made to project toward the inner side so that cold air is blown out in parallel. Further, the second cold air outlet 35 for blowing the cold air generated by the F-evacuation 23 to the second freezer compartment 6 is also provided at a position facing the upper back of the storage container 80, and the upper surface of the storage container 80. It is made to protrude toward the inside of the cabinet so that the cold air is blown out substantially in parallel.

  A machine room 27 is formed at the lower back of the refrigerator body 1, and a compressor 28 constituting the refrigeration cycle device 17 and a cooling fan 29 for cooling a condenser (not shown) are provided in the machine room 27. Provided. The compressor 28 is driven at a variable speed by inverter control (for example, the inverter operating frequency is 30 to 70 Hz), and the cooling fan 29 is also driven at a variable speed (for example 1800 to 2000 rpm). It has become.

  Here, the storage container 50 will be described in detail. 2 is a longitudinal sectional view showing the first freezing chamber in a closed state, and FIG. 3 is a longitudinal sectional view showing the first freezing chamber in a state where the door is opened and the lid body 70 is moved rearward. 4 is an exploded view showing the storage container 50 with the lid 70 omitted, FIG. 5 is a perspective view showing the storage container 50, and FIG. 6 is a perspective view showing a state in which the lid 70 in FIG. FIG. 7 is a top view showing a state in which the lid 70 is placed on the bottom surface 54.

  The storage container 50 is a rectangular box whose upper surface is opened and is formed from a synthetic resin, for example, polypropylene. A lid 70 that is slidably moved is detachably attached to the flange portion 55 of the upper surface opening 54. Provided. The lid 70 closes the rear part of the opening 54 so that the cold air blown from the first cold air outlet is not directly blown into the storage container 50.

As shown in FIG. 4, a concave portion 52 is formed in the front portion 51 of the storage container 50, and a decoration 53 is attached to the concave portion 52.
The back surface on both sides of the flange portion 55 is formed in a substantially U shape so as to fit between the folded portion 56 extending downward from the outer peripheral edge of the flange portion 55 and the outer peripheral wall of the storage container 50. A reinforcing member 57 is attached by screws 58.

The rear portion on both sides of the flange portion 55 performs a rail action so that the lid body 70 slides in the front-rear direction between the flange portion 55 and restricts the upward movement of the lid body 70. A locking piece 61 formed in a letter shape is erected, and the front portion of the locking piece 61 is inclined upward so that the lid 70 can be easily taken forward as shown in FIG. A rising portion 62 is formed.
Ribs 63a and 63b for positioning the lid 70 are erected on the front and rear of the flange portion 55 positioned in front of the front end of the locking piece 61, and rearward of the rear end of the locking piece 61. As shown in FIG. 8, the flange portion 55 is provided with a stopper 64 that engages a recess on the back surface side of the lid body 70 and restricts the lid body 70 from moving backward by a predetermined distance or more.

  Further, a rib 53a is positioned on the bottom surface 53 of the storage container 50 so as to be positioned so that it does not move due to a door opening operation when the removed lid 70 is placed on the bottom surface 53 as shown in FIG. Yes.

  Next, the lid 70 will be described in detail. 10 is a top view showing the lid 70, FIG. 11 is an exploded view of the lid of FIG. 10, FIG. 12 is a perspective view of the lid of FIG. 10 as viewed from below, and FIG. FIG. 14 is a cross-sectional view taken along the line AA in FIG. 10, FIG. 15 is a cross-sectional view taken along the line CC in FIG. 10, and FIG. It is sectional drawing which follows the DD line.

  As shown in FIGS. 10 and 11, the lid body 70 is made of, for example, a metal plate 71 made of aluminum or the like, and a synthetic resin, for example, an ABS frame body, which covers the outer periphery of the metal plate 71 and is formed in a square shape. 75, and a metal plate 71 has a positioning through-hole 72 drilled at substantially the center of each side. The frame body 75 includes an upper frame body 75a and a lower frame body 75b. As shown in FIGS. 11, 14, and 16, the lower frame body 75b is inserted into the through hole 72 of the metal plate 71. Thus, a rib 76 for positioning is erected. Thus, the lid body 70 covers the upper frame body 75a in a state where the through hole 72 of the metal plate 71 is inserted into the rib 76 of the lower frame body 75b, and is integrally formed by, for example, ultrasonic welding.

  When the room temperature is low, such as a freezer compartment, each member contracts, and the amount of contraction of the resin frame 75 is larger than that of the metal plate 71, so the outer peripheral surface of the metal plate 71 and the inner peripheral surface of the frame 75. And a clearance larger than the shrinkage difference, for example, about 0.4 to 1 mm is provided between the through hole 72 and the rib 76.

As shown in FIGS. 12 and 15, a convex portion 78 is provided at the center of the left and right sides of the back surface of the lid body 70 to abut against the stopper 64 of the storage container 50 and restrict the rearward movement of the lid body 70. A groove 77 on which the stopper 64 slides is formed before and after the convex portion 78. Further, at the front and rear ends of the groove portion 77, a notch 79 is formed for fitting the rib 63 b to position the lid body 70.
The convex portion 78 and the groove portion 77 are provided so as to be symmetrical in the front-rear direction, and the lid 70 is attached to the storage container 50 from either direction.

Next, the operation of the lid 70 will be described with reference to FIGS. 2, 3, 5, and 6.
As shown in FIGS. 2 and 5, in a state where the lid body 70 is attached to the storage container 50, both sides of the lid body 70 are placed on the flange portion 55, and are cut off from the front portion of the lid body 70. The notch 79 is positioned in contact with the ribs 63a and 63b. At this time, the stopper 64 is located in the groove 77 of the lid 70.

  When the user takes out the frozen food, the storage container 50 is pulled out by pulling out the door 9 as shown in FIG. 3. However, the lid 50 makes it difficult to take out the frozen food. 50 is moved backward. At this time, the rib 63b is removed from the notch 79 and pushed backward by lifting the front of the lid 50 while pushing up, and the lid 70 moves backward while the stopper 64 slides in the groove 77. To do. And if it moves back to predetermined distance, the convex part 78 of the cover body 70 will contact | abut the stopper 64, and the fall of the cover body 70 to the back is prevented.

Further, the movement of the upper and left and right directions is restricted by contacting the locking piece 61 so that the lid 70 does not fall from the storage container 50 during movement.

  After the user has taken out the frozen food, the lid 70 is moved forward, the front part and the notch 79 are brought into contact with the ribs 63a, 63b, and then the door is closed, but the user should return to the front position. Even if it is forgotten, the rear end surface of the lid 70 comes into contact with the rear wall, and the lid 70 is automatically closed to close the opening 54.

  Moreover, when storing tall frozen foods or for a user who does not need the use of the present invention, the front part of the lid 70 is drawn diagonally forward in accordance with the shape of the rising 62, thereby the lid 70. This side slides in the locking piece 61, the restriction of the locking piece 61 is released, and it can be removed from the storage container 50.

  At this time, by setting the width dimension of the lid body 70 to be equal to or smaller than the depth dimension of the storage container 50 and the depth dimension of the lid body 70 to be equal to or smaller than the width dimension of the storage container 50, as shown in FIG. It can be mounted on. For this reason, while being able to attach the cover body 70 rapidly as needed, the loss of the cover body 70 can be prevented by mounting on the bottom face of the storage container 50 when unnecessary. Furthermore, by using the lid 70 as a metal plate, it is possible to improve the refrigeration capacity as a cooling panel.

  Next, the operation of the present invention will be described. In general, frozen foods can be eaten with a good texture if cooked while maintaining the frozen state of moisture in the food, but frozen foods have the problem of deterioration in texture due to sublimation of moisture.

  The reason why moisture sublimates from frozen food is due to the following phenomenon. That is, as shown in FIG. 23, the frozen food 90 is usually packaged by a storage member 91 such as a bag, saran wrap, or tapper, so that when it is stored in the first freezer compartment 5, Since the cold airflow from 31 directly hits the storage member 91, the temperature of the storage member 91 becomes the lowest. That is, when the target temperature of the first freezer compartment 5 is −18 ° C. and the temperature of the cold air is −30 ° C., the temperature of the frozen food 90 is −18 ° C., whereas the temperature of the storage member 91 is −30 ° C. Can be considered.

Thus, in the state where the temperature of the preservation | save member 91 is extremely lower than the frozen food 90, it comes to adhere to the inner surface of the preservation | save member 91 which the water | moisture content sublimated from the frozen food 90 as a frost. In this case, all the water sublimated from the frozen food 90 adheres to the inner surface of the storage member 91 as frost. As a result, the saturated water vapor density in the storage member 91 does not increase, and the water continuously sublimates from the frozen food 90. At the same time, the sublimated water adheres to the inner surface of the storage member 91 as frost. As a result of such a phenomenon, the moisture of the frozen food 90 moves to the inside of the storage member 91, so that a lot of moisture is sublimated from the frozen food 90.

  Moreover, the temperature of the 1st freezer compartment 5 raised by the penetration | invasion of the warmed air by electricity supply of the F-eva defrost heater 25 in a defrost operation, and the temperature of the frozen food 90 fell rather than the temperature of the air in the preservation | save member 91. When the frost adhered to the storage member 91 is sublimated and this time, as shown in FIG. 24, the frost adheres to the frozen food 90, but the defrosting operation ends and the cooling operation starts. When started, the temperature of the storage member 91 is rapidly lowered again by the blowing of cold air, and the frost attached to the surface of the frozen food 90 is sublimated and adheres to the inside of the storage member 91. Become.

  By repeating as described above, a large amount of moisture moves from the frozen food 90 to the inside of the storage member 91. For this reason, when the frozen food 90 in which moisture has been sublimated in this way is cooked and eaten, the food becomes crispy and the texture is greatly deteriorated.

  On the other hand, in this embodiment, the rear part of the storage container 50 opening 54 through which the cold air generated by the F-eva 23 is blown from the cold air outlet 31 provided above the back surface of the storage container 50 is covered by the lid body 70. Since it is closed, the cold air blown from the cold air outlet 31 provided at the upper back of the storage container 50 is blocked by hitting the lid 70 and circulates through the upper surface in the storage container 50. Thereby, compared with the configuration in which the cold air directly hits the frozen food in the storage container 50, the momentum of the cold air in contact with the frozen food is greatly weakened, so the temperature difference between the frozen food 90 and the storage member 91 is large. It can be cooled so that it does not become.

  On the other hand, water is sublimated from the frozen food 90 no matter how it is cooled, but sublimated from the frozen food 90 by cooling so that the temperature difference between the frozen food 90 and the storage member 91 does not increase. Moisture adheres not only to the inner surface of the storage member 91 but also to the surface of the frozen food 90. That is, even if moisture sublimates from the frozen food 90, a part of the moisture returns to the frozen food 90, so that the sublimation of moisture from the frozen food 90 and the return of frost to the frozen food 90 eventually balance. As a result, the sublimation of moisture from the frozen food 90 stops.

  Moreover, when the temperature of the preservation | save member 91 becomes higher than the temperature of the frozen food 90 after defrosting etc., the frost adhering in the preservation | save member 91 will sublimate and come to adhere to the surface of the frozen food 90. However, when the temperature of the preservation member 91 is lowered below the temperature of the frozen food 90 due to the blowing of cold air again, the temperature difference between the frozen food 90 and the preservation member 91 is not large, and thus adheres to the surface of the frozen food 90. The frost that has been transferred does not completely move to the inner surface of the storage member 91, and moisture does not sublime from the frozen food 90.

  Furthermore, since the cover body 70 suppresses the air warmed during the defrosting operation from entering the storage container 50, the temperature rise of the frozen food 90 during the defrosting operation can be reduced. For this reason, even if the temperature of the preservation | save member 91 falls rapidly after cooling operation start, the temperature difference with the frozen food 90 can be kept small, and can suppress sublimation of the water | moisture content from the frozen food 90 by it. it can.

  Therefore, since the movement of moisture from the frozen food 90 is stopped, when the frozen food 90 is cooked and eaten, there is no feeling of patter and it can be eaten with a good texture. As a result, the food becomes porous due to drying, and the promotion of oxidation (so-called freezing burn) of food components due to an increase in surface area can be suppressed.

  Further, according to the present invention, the first freezing chamber is a drawer-type storage chamber from which the storage container 50 is pulled out by an opening operation, and the lid 70 is slidable with the upper surface of the storage container 50 facing rearward. Therefore, the lid can be easily opened and closed and the frozen food can be taken in and out easily. Further, even if the user forgets to return the lid 70 after the frozen food is taken out, the rear end of the lid 70 comes into contact with the rear wall of the interior by the rearward movement of the container 50 by the closed door. The opening 54 of the storage container 50 can be closed.

  Furthermore, the storage container 50 of the present invention is provided with a locking piece 61 for restricting the upward movement of the lid 70, and the regulation of the locking piece is released by sliding the lid 70 forward. Thus, when the lid body 70 is unnecessary, the lid body 70 can be easily removed from the storage container 50, and it is possible to prevent the lid body 70 from being accidentally dropped when the lid body 70 is moved. it can.

  Furthermore, according to the present invention, the front portion of the locking piece 61 is provided with a rising portion 62 that is inclined upward, so that the lid 70 can be easily accommodated by sliding forward and over the positioning piece. 50 can be removed.

  Furthermore, according to the present invention, when the storage container 50 is provided with the stopper 64 that restricts the rearward movement of the lid body 70 more than a predetermined amount, when the lid body 70 is moved rearward, it falls back. This can be prevented.

  Furthermore, according to the present invention, on the back surface of the lid body 70, when the lid body 70 is moved rearward, a groove 77 where the stopper 64 of the storage container 50 slides, and when the lid body 70 moves rearward for a predetermined time. Further, by providing the convex portion 78 that comes into contact with the stopper 64, the lid body 70 can be moved back and forth with a simple configuration.

  Furthermore, according to the present invention, since the groove portion 77 and the convex portion 78 of the lid body 70 are provided symmetrically in the front-rear direction, the user can attach from either the front or the rear when attaching again from the removed state. Usability is improved. In the present embodiment, the groove portion 77 is provided only on the back surface of the lid body 70. However, by providing the groove portion 77 on the front surface, it can be attached from either the front or the back.

  Furthermore, when a synthetic resin such as polypropylene that is easily bent is adopted for the storage container 50, the flange portion 50 may spread outward and the lid body 70 may not be able to move back and forth. By providing the reinforcing member 57 that suppresses the bend on the side of the container 50, the bend of the flange portion 55 on which the lid 70 slides can be prevented and the slidability can be improved.

  Furthermore, as shown by the broken line in FIG. 2, by tilting the front part of the lid 70 upward, the cool air blown from the rear can be directed upward, Direct airflow of cold air can be further suppressed, so that the temperature difference between the frozen food 90 and the storage member 91 can be reduced, and sublimation of moisture from the frozen food 90 can be prevented.

  Furthermore, according to the present invention, since the lid body 70 is made of the metal plate 71, the lid body 70 can be cooled to a very low temperature, for example, about −30 ° C. in a short time by blowing cool air from the F EVA 23. Therefore, the food located below the lid 70 can be efficiently cooled by radiant heat.

  Therefore, the cool air blown from the F-evacuation 23 at the opening 54 of the storage container 50 stored in the first freezer compartment 5 is blocked by the lid 70 made of the metal plate 71, so that the cool air is directly introduced into the storage container 50. Therefore, the temperature in the storage container 50 can be made substantially uniform. For this reason, the temperature difference between the frozen food 90 stored in the storage container 50 and the storage member 91 for packaging it can be reduced, and the sublimation of moisture from the frozen food 90 can be prevented from continuing. It is possible to prevent the texture when the frozen food 90 is cooked and eaten from deteriorating.

Furthermore, when the metal plate 71 is grasped and moved back and forth with a wet hand or the like, the moisture on the surface of the hand may be frozen. However, the present invention provides the lid 70, the metal plate 71, and the metal plate. Since the frame body 75 having a specific heat larger than that of the metal plate 71 is used as a handle of the lid body 70, the lid body 70 can be moved back and forth. The freezing of the hands can be reliably prevented. Furthermore, when the room temperature is low, such as in a freezer compartment, the metal plate 71 and the frame 75 contract, and the amount of contraction of the resin frame 75 is smaller than that of the metal plate 71. Therefore, if the metal plate 71 and the frame body 75 are brought into close contact with each other, such as insert molding, there is a possibility that problems such as deformation and cracks may occur. Therefore, in the present invention, the above-described adverse effects can be prevented by providing a gap between the outer peripheral surface of the metal plate and the inner peripheral surface of the frame.

  Furthermore, according to the present invention, the lid body 70 is set to be equal to or less than the depth dimension of the storage container 50, and the depth dimension of the lid body 70 is set to be equal to or less than the width dimension of the storage container 50. It can be placed on the bottom surface 54. For this reason, the lid 70 can be quickly attached as necessary, and the lid 70 can be prevented from being lost.

  Next, another embodiment will be described with reference to FIGS. In the present embodiment, the lid 70 is configured to block the entire surface of the opening 54 of the storage container 50. When the lid 70 is present as described above, the cooling air is not directly blown and the cooling is insufficient. However, when the cooling is not insufficient depending on the refrigeration capacity and the blowing amount, as shown in FIGS. 17 and 18. Alternatively, the lid 70 may be closed on the entire surface. In this case, it is preferable that a gap is provided between the container 50 and the upper surface of the metal plate 71 to be provided with a cold air hole or the like instead of being completely sealed.

  In addition, when the width dimension of the lid body 70 is equal to or greater than the depth dimension of the storage container 50 or the depth dimension of the lid body 70 is equal to or greater than the width dimension of the storage container 50, the width dimension of the lid body 70 is the other storage chamber, Here, as shown in FIG. 19, the depth dimension of the storage container 80 provided in the second freezer compartment 6 is set to be equal to or smaller than the depth dimension of the storage container 80. It can be placed on the bottom surface 81. For this reason, it is possible to quickly attach the lid 70 as needed, and to prevent the lid 70 from being lost, as in the case where the lid 70 is placed in the storage container. Furthermore, by using the lid 70 as a metal plate, it is possible to improve the refrigeration capacity as a cooling panel.

  On the other hand, in the above-described embodiment, the opening is closed over the entire width of the storage container. However, as shown in FIGS. 20 to 22, a lid 70 is provided on a part of the storage container, It is good also as a storage space with the effects of the present invention.

  Specifically, for example, the upper container 82 of the storage container 80 of the second freezer compartment 6 is erected from the bottom with a partition 83 that partitions the storage space in the left-right direction, and the flange portion 84 is erected on one inner wall. The lid body 70 can move the upper surface of the partition 83 and the flange portion 84 back and forth in the same manner as in the above embodiment, so that the storage portion to which the lid body 70 is attached has a storage space that exhibits the effects of the present invention. It can be. In this case, since the user can distinguish and store the food that simply needs to be cooled and the food that is desired to prevent drying due to moisture sublimation, the user's convenience can be improved.

  In addition, the structure mentioned above is only one Embodiment, A various change is possible in the range which does not change the summary of invention. For example, the lid 70 is not limited to a form in which the upper surface of the storage container is slid, but may be attached to the refrigerator main body 1 such as formed by an inner box or the like, and cold air does not directly enter the storage container 50. The shape of the cold air outlet 31 may be inclined obliquely upward.

  The present invention can be applied to a refrigerator having a freezing room cooled to a freezing temperature zone.

It is a longitudinal section showing a refrigerator which is one embodiment of the present invention. It is a longitudinal cross-sectional view which shows the 1st freezer compartment of the state closed in FIG. It is a longitudinal cross-sectional view which shows the 1st freezer compartment of the same part as FIG. 2 of the state which opened the storage container and pulled out the storage container and moved back. It is an exploded view which shows the storage container 50 which abbreviate | omitted the cover body in FIG. It is a perspective view which shows the storage container and cover body in FIG. It is a perspective view which shows the state which moved the cover body of FIG. 5 back. It is a top view which shows the state which mounted the cover body of FIG. 2 on the bottom face of the storage container. It is an enlarged view which shows the rear part of the latching piece of the storage container of FIG. It is an enlarged view which shows the front part of the latching piece of the storage container of FIG. It is a top view which shows the cover body of FIG. It is an exploded view of the cover body shown in FIG. It is the perspective view seen from the bottom which shows the cover body of FIG. It is an enlarged view which shows the corner | angular part of the cover body of FIG. It is sectional drawing which follows the AA line of FIG. It is sectional drawing which follows the CC line of FIG. It is sectional drawing which follows the DD line | wire of FIG. It is a perspective view which shows the storage container of other embodiment of this invention. It is a perspective view which shows the storage container of the state which moved the cover body of FIG. 17 back. It is a perspective view which shows the state which mounted the cover body of FIG. 17 in another storage container. It is a longitudinal cross-sectional view of the 2nd freezer compartment which shows further another embodiment of this invention. It is a perspective view which shows the storage container of FIG. It is a perspective view which shows the storage container of the state which moved the cover body of FIG. 21 back. Schematic diagram of frozen food showing the principle of moisture sublimation from frozen food Schematic diagram of frozen food showing the principle of moisture sublimation from a storage member

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Refrigerator main body 2 ... Refrigeration room 5 ... 1st freezer compartment 6 ... 2nd freezer compartment 23 ... F Eva 24 ... F fan 25 ... F Eva defrost heater 31 ... 1st cold air outlet 35 ... 2nd cold air outlet 50 ... Storage container 54 ... Opening part 55 ... Flange part 57 ... Reinforcing member 61 ... Locking piece 62 ... Rising part 63a, 63b ... Rib 64 ... Stopper 70 ... Cover body 71 ... Metal plate 75 ... Frame body 77 ... Groove part 78 ... Convex Part

Claims (14)

A freezing chamber cooled to a freezing temperature zone by cold air blown from a cold air outlet provided above the back surface, a storage container having an upper surface provided in the freezing chamber, and at least the cold air outlet in the storage container A refrigerator characterized in that an opposing rear upper surface opening is closed by a lid. The refrigerator according to claim 1, wherein the freezer compartment is a drawer-type storage chamber from which the storage container is pulled out by an opening operation, and the lid body slides rearwardly from the upper surface of the storage container. The storage container is provided with a locking piece for restricting the upward movement of the lid, and the regulation of the locking piece is released by sliding the lid forward. 2. The refrigerator according to 2. The refrigerator according to claim 3, wherein the front portion of the locking piece is inclined upward. The refrigerator according to claim 1, wherein the storage container is provided with a stopper for restricting rearward movement of the lid. Provided on the back surface of the lid body are a groove portion where the stopper of the storage container slides when the lid body is moved backward, and a convex portion which comes into contact with the stopper when the lid body moves backward for a predetermined time. The refrigerator according to claim 5. The refrigerator according to claim 6, wherein the groove portion and the convex portion of the lid body are provided symmetrically. The refrigerator according to claim 2, wherein a reinforcing member that suppresses bending is provided on a side of the storage container. The refrigerator according to claim 1, wherein the front portion of the lid is inclined upward. The refrigerator according to claim 9, wherein the lid is a metal plate. 11. The refrigerator according to claim 10, wherein the lid includes a metal plate and a resin frame that covers an outer peripheral edge of the metal plate. The refrigerator according to claim 11, wherein a gap is provided between the outer peripheral surface of the metal plate and the inner peripheral surface of the frame. The refrigerator according to claim 1, wherein the width of the lid is not more than the depth of the storage container, and the depth of the lid is not more than the width of the storage container. 2. The refrigerator according to claim 1, wherein the width of the lid is not more than the depth of a storage container provided in another storage chamber, and the depth of the lid is not more than the width of the storage container.

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