JP2020020572A - refrigerator - Google Patents

Abstract

To provide a refrigerator capable of suppressing water droplets from dropping into a container.SOLUTION: A refrigerator comprises a storage chamber, a drawable door that opens and closes the storage chamber, a drawable storage container housed in the storage chamber, a moisture occlusion/release member that moves with the movement of the door or the storage container, and a blowout port for blowing cold air into the storage chamber. The moisture occlusion/release member can occlude moisture in a space from one side facing the space of the storage container capable of storing an object to be stored, and can release the occluded moisture to air from the other side that is exposed to the air with a lower humidity than the space. Part of the cold air blown out from the blowout port passes through the space to a front side.SELECTED DRAWING: Figure 10

Description

  The present invention relates to refrigerators.

There is a demand for a refrigerator that can control the humidity satisfactorily while maintaining the freshness of the food in the refrigerator. In connection with such a technique, a technique described in Patent Document 1 is known.
In Patent Literature 1, a cover that closes an upper surface opening of a drawable container is attached to a main body of a refrigerator, and a moisture control member provided on the cover absorbs excess water in the container to prevent dew condensation. Describes that when the inside of the container becomes low in humidity, water is released.

JP 2011-17472 A

  When a cover is provided to close the upper opening of the container, moisture contained in the air in the container may condense on the lower surface of the cover and generate dew water. In the technology described in Patent Document 1, although it is described that moisture is prevented by a humidity control member provided on the cover, the moisture control member does not allow moisture to escape to the outside of the container. In such a case, there is a possibility that dew condensation water may fall from the cover into the container.

  The present invention has been made in view of such a problem, and a problem to be solved by the present invention is to provide a refrigerator in which water drops are prevented from falling into a container.

The present inventors have conducted intensive studies to solve the above-mentioned problems. as a result,
A storage room,
A drawer-type door for opening and closing the storage room;
A drawer-type storage container housed in the storage room,
A moisture storage / release member that moves with the movement of the door or the storage container,
An outlet for blowing cool air into the storage room,
The moisture storage / release member,
From one surface facing the space of the storage container capable of storing the stored material, it is possible to absorb moisture in the space,
From the other side exposed to air having a lower humidity than the space, the absorbed moisture can be released to the air,
A refrigerator,
It has been found that the above problem can be solved by allowing a part of the cool air blown out from the outlet to pass through the space to the front side.

  It is possible to provide a refrigerator in which water drops are prevented from falling into the container.

It is a front view of the refrigerator of this embodiment. It is a perspective view of the lower container to which the upper container was attached in a refrigerator. It is a perspective view of a vegetable room in which a vegetable container cover was arranged in a refrigerator. FIG. 4 is a sectional view taken along line AA of FIG. 3. It is a perspective view from the front side of an upper stage container. It is a perspective view from the back side of an upper stage container. It is a perspective view from the lower side of an upper container. FIGS. 2A and 2B are perspective views from the back side, FIG. 2B is an exploded perspective view, and FIG. 2C is a sectional view taken along line BB in FIG. is there. It is a perspective view from above of a vegetable container cover. It is a perspective view from the lower part of a vegetable container cover, (a) is the whole figure, (b) is a figure which expands and shows C part of (a). It is a side view of a vegetable container cover. It is a perspective view from the front side of a lower container. It is a perspective view from the back side of a lower container. It is a perspective view of the member attached to the back side wall of a lower container, (a) is a lower container cover attached to an inner surface, (b) is a case attached to an outer surface. It is an exploded perspective view of the evaporation cassette attached to the outside back of the lower container, (a) is a state where the evaporation board was attached, (b) is a state where the evaporation board was removed. It is a figure which shows the mode when the moisture inside the rear lower space is dewed, and the dewed water evaporates outside the vegetable room. It is a figure which shows the modification of the lower container cover attached inside a lower container, and is a perspective view of the evaporation unit cover attached instead of a lower container cover. FIG. 18 is a perspective view showing the inside of the lower container from the front side when the evaporation unit cover shown in FIG. 17 is attached to the inside of the lower container. It is sectional drawing of a lower container when a lower container is accommodated in a refrigerator. It is sectional drawing which shows a lower container when a lower container is pulled out a little from the inside of a refrigerator. It is sectional drawing which shows a mode when releasing a lock handle after completely pulling out a lower container from inside a refrigerator, and opening a rear upper space. It is sectional drawing of a refrigerator when a lower container and an upper container are completely pulled out from the inside of a refrigerator. It is a figure showing the result of the experiment which measured the residual amount of vitamin C in the vegetables in each space.

  Hereinafter, an embodiment (this embodiment) for carrying out the present invention will be described with reference to the drawings.

  FIG. 1 is a front view of a refrigerator 10 of the present embodiment. A refrigerator 10 shown in FIG. 1 has a refrigerator room left door 2, a refrigerator room right door 3, an ice making room door 4a, a quick freezing room door 4b, a freezing room door 5, and a vegetable room in front of the refrigerator body 1. And a door 6. The refrigerating compartment left door 2 is rotatable in the front direction of the drawing by an upper hinge 7a and a lower hinge 8a. Further, the refrigerator compartment right door 3 is rotatable in the front direction on the paper by the upper hinge 7b and the lower hinge 8b. That is, the refrigerating room left door 2 and the refrigerating room right door 3 are provided so as to be able to open freely, and a refrigerating room (not shown) is formed in a space formed by these and the refrigerator body 1.

  Further, the ice making room door 4a, the quick freezing room door 4b, and the freezing room door 5 can be pulled out toward the front of the drawing. An ice making room, a quick freezing room, and a freezing room (all not shown) are formed in a space formed by these and the refrigerator main body 1. Similarly, the vegetable room door 6 can be pulled out toward the front of the drawing. Furthermore, a vegetable room 100 (storage room, see FIG. 2) is formed in a space defined by the refrigerator body 1 and the refrigerator room.

  FIG. 2 is a perspective view of the lower container 101 to which the upper container 102 is attached in the refrigerator 10. In the vegetable room 100, the inner box 124 of the refrigerator main body 1 (see FIG. 1) forms the wall surface (left wall, right wall, and bottom wall) of the vegetable room 100. Further, a vegetable container cover 105 (see FIG. 3) arranged above the vegetable room 100 constitutes an upper wall of the vegetable room 100. Therefore, in the vegetable compartment 100, the hermeticity of the interior of each of the lower container 101 and the upper container 102 is ensured to some extent.

  In the vegetable compartment 100, a lower container 101 (storage container) and an upper container 102 (storage container, internal container) are housed in a front side and a back side (hereinafter, sometimes referred to as "front and rear direction") so as to be freely drawn out. ing. However, in this embodiment, even if the lower container 101 moves in the front-back direction, the position of the upper container 102 inside the lower container 101 does not change. However, as will be described in detail later, when the user operates the lock handle 106 (see FIG. 8), the upper container 102 can also be pulled out to the front side.

  On the back side of the vegetable compartment 100, a machine room (not shown) for arranging a compressor (not shown) and the like outside the refrigerator is formed. Therefore, the bottom wall is higher on the back side than on the front side. The lower container 101 is provided with a glass partition 103. As a result, the lower container 101 is divided into two sections (a front space 101B on the front side, a rear lower space 101A on the rear side, and a rear upper space 101C, both of which are not shown in FIG. 2). The upper container 102 is arranged so as to cover the space on the back side of the two sections of the lower container 101.

  FIG. 3 is a perspective view of the vegetable compartment 100 in which the vegetable container cover 105 (cover member) is arranged in the refrigerator 10. The vegetable container cover 105 is arranged so as to cover upper openings of the lower container 101 and the upper container 102 (see FIG. 4, not shown in FIG. 3). Note that the vegetable container cover 105 is arranged above the lower container 101 when the lower container 101 is stored in the refrigerator 10. Therefore, when the lower container 101 is completely pulled out of the refrigerator 10, the vegetable container cover 105 remains inside the refrigerator 10, and the inside of the lower container 101 is opened to the outside.

  The vegetable container cover 105 is made of a resin having optical transparency. A knurl (a plurality of grooves extending from the front side to the back side) 105a is formed on the upper surface and the front side of the vegetable container cover 105. Then, when the user pulls out the lower container 101 and the upper container 102 to the front side and uses them, the light from the LED lighting mounted outside and above the vegetable compartment 100 passes through the knurl 105a. Thus, the inside of the lower container 101 and the upper container 102 is irradiated. Since the knurl 105a is formed by the plurality of grooves as described above, the light incident on the knurl 105a is diffused. Further, since the knurl 105a is formed by a plurality of grooves, the knurl 105a has a large surface area. Therefore, a wide area is illuminated while suppressing the generation of shadows.

  On the lower surface of the vegetable container cover 105 (that is, the surface facing the inside of the vegetable compartment 100), a transpiration board 105b is arranged. Further, on the upper surface of the vegetable container cover 105, a plurality of communication holes 105c (inner / outer communication holes) that communicate the inside and outside of the vegetable compartment 100 are formed. Details of these points will be described later with reference to FIGS.

  A cool air outlet (not shown) is formed on a wall surface of the vegetable compartment 100 or on a heat insulating partition wall located between the vegetable compartment 100 and the freezing compartment. The outlet is provided with a cool air supply adjusting means 141 capable of controlling the supply of cool air for cooling the vegetable compartment 100. Thereby, the cool air blown out into the vegetable room 100 slightly enters the rear space 101A (see FIG. 4) and escapes from the front side. Furthermore, it is possible to prevent the humidity in the rear space 101A from excessively rising, and to prevent dew condensation at an unintended part.

  FIG. 4 is a sectional view taken along line AA of FIG. Note that FIG. 4 also shows the vegetable compartment door 6 shown in FIG. The lower container 101 is partitioned into three spaces: a lower rear space 101A, a front space 101B, and a rear upper space 101C. Of these, the rear lower space 101A is formed by partitioning the lower container 101 by the partition 103 arranged inside the lower container 101 and the lower surface of the upper container 102. The front space 101B is formed by dividing the lower container 101 by the front side surface of the upper container 102, the partition 103, and the vegetable container cover 105. The rear upper space 101C is formed by dividing the lower container 101 by the upper container 102 and the vegetable container cover 105.

  Of these spaces, on the back side of the rear lower space 101A, there are three spaces inside the lower container 101 (that is, the rear lower space 101A, the front space 101B, and the rear upper space 101C). A transpiration cassette 112 for controlling the humidity (in the space) is provided. The details of the evaporation cassette 112 will be described later with reference to FIG.

  In addition, a communication hole 102a (space communication hole) that connects the rear lower space 101A (first space) and the rear upper space 101C (second space) is formed on the bottom surface of the upper container 102. . Thereby, both the rear lower space 101A and the rear upper space 101C can be dehumidified.

  FIG. 5 is a perspective view of the upper container 102 from the front side. The lock handle 106 (support and release mechanism) arranged on the front side of the upper container 102 normally operates the upper container 102 supported and fixed inside the lower container 101 to operate the upper container 102 by the user. This is to make it possible to move in the front-back direction. The lock handle 106 includes a pressing portion 106a that allows the upper container 102 to move to the front side when pressed, and a concave portion 106b that is formed by slightly recessing the front upper end of the upper container 102. Is done. Then, while the user holds down the depression 106b and presses down with the thumb or the like of the hand holding the pressing portion 106b, the support fixing of the upper container 102 in the lower container 101 is released. This allows the upper container 102 to move in the front-rear direction.

  In addition, three spaces of a rear lower space 101A, a front space 101B, and a rear upper space 101C (hereinafter, these spaces are referred to below the front side of the lock handle 106 via the inside of the lock handle 106). A communication hole 106c (a space communication hole) that communicates with each other (which may be collectively referred to as “each space”) is formed. Further, inside the lock handle 106, a platinum catalyst 118 (see FIG. 8B) is housed at a position where it can come into contact with air in each space. Therefore, the air taken into the lock handle 106 through the communication hole 106c comes into contact with the platinum catalyst 118, and thereafter, the air that comes into contact with the platinum catalyst 118 is supplied to each space. As a result, the air in the front space 101B reaches the evaporation board 105b (see FIG. 10) in the rear upper space 101C and the condensation surface 101a (see FIG. 16) formed on the rear surface in the rear lower space 101A. be able to. Therefore, it is possible to control the humidity of the air in the front space 101B.

  FIG. 6 is a perspective view from the back side of the upper container 102. A communication hole 106d that communicates each space through the inside of the lock handle 106 is also formed below the rear side of the lock handle 106. Then, similarly to the communication hole 106c, the air taken into the lock handle 106 through the communication hole 106d comes into contact with the platinum catalyst 118, and thereafter, the air contacted with the platinum catalyst 118 is supplied to each space. Will be. The communication hole 106d faces the rear upper space 101C via a hole 102b formed on the front side surface of the upper container 102.

  FIG. 7 is a perspective view from below of the upper container 102. A communication hole 106e is formed below the lock handle 106 through the inside of the lock handle 106 to communicate the three spaces of the rear lower space 101A, the front space 101B, and the rear upper space 101C. . Then, similarly to the communication holes 106c and 106d, the air taken into the lock handle 106 through the communication holes 106e contacts the platinum catalyst, and thereafter, the air contacted with the platinum catalyst is supplied to each space. Will be. The communication hole 106e faces the rear lower space 101A via a hole 102c formed in the bottom surface of the upper container 102.

  FIGS. 8A and 8B show members constituting the lock handle 106. FIG. 8A is a perspective view from the back side, FIG. 8B is an exploded perspective view, and FIG. It is a B sectional view. In FIG. 8C, for simplicity of illustration, a part of a mechanism for releasing a lock (support and fixing of the upper container 102) is not shown.

  As shown in FIG. 8A, the lock handle 106 includes a catalyst cover 106f having a communication hole 106d, a handle case rear 106g to which the catalyst cover 106f is mounted, and a handle case front mounted to the front side of the handle case rear 106g. 106h, and a handle lever 106j integrally formed with the pressing portion 106a (see FIG. 5). Then, as shown in FIG. 8B, when the catalyst cover 106f is removed from the lock handle 106, a platinum catalyst 118 is arranged inside the lock handle 106 so as to extend in the left-right direction. The platinum catalyst 118 is disposed inside the lock handle 106 so as to avoid a mechanism (not shown) for releasing the lock on the lock handle 106.

  In FIG. 8C, thick arrows indicate the direction in which air flows. As shown in FIG. 8C, the platinum catalyst 118 can come into contact with air in each space through the communication holes 106c, 106d, and 106e. Although not shown by arrows, the air in each space is supplied to another space without contacting the platinum catalyst 118.

  Here, the platinum catalyst 118 will be described. Unlike the photocatalyst, the platinum catalyst 118 is a catalyst that decomposes ethylene and trimethylamine contained in air in each space even without light from an LED or the like. The decomposition of ethylene by the platinum catalyst 118 generates carbon dioxide and water vapor. Since the generated carbon dioxide is supplied into each space through the communication hole, the pores of the vegetables stored in each space are closed, and the respiration of the vegetables is suppressed. , The freshness of the vegetables is maintained for a long time. The place where the platinum catalyst 118 is installed is not limited to the inside of the lock handle 106, but a catalyst housing section may be provided on at least one wall surface that partitions each space, and the platinum catalyst 118 may be housed in this catalyst housing section. In this case, a communication hole communicating with each space is also formed in the catalyst storage section. In addition, a structure may be employed in which a catalyst housing portion is provided on any wall surface of each space, and a communication hole is formed on a wall surface partitioning each space.

  When carbon dioxide is dissolved in water existing on the surface of vegetables and the like stored in the vegetable compartment 100, the surface of the vegetables and the like becomes acidic. However, when trimethylamine which shows alkalinity when dissolved in water is generated, trimethylamine is also dissolved in water existing on the vegetable surface, so that the acidified vegetable surface due to dissolution of carbon dioxide is neutralized. However, in the refrigerator 10, the surface of vegetables and the like stored in the vegetable compartment 100 becomes acidic due to the decomposition of trimethylamine by the platinum catalyst 118, and the growth of microorganisms on the vegetable surface is suppressed.

  The platinum catalyst 118 in the refrigerator 10 is in the form of a pellet, and is contained in the lock handle 106 in a state of being packed in a bag. Thus, the pellet-shaped platinum catalyst 118 is appropriately mixed in the bag when the upper container 102 is pulled out and stored. For this reason, air is prevented from coming into contact with the pellets from only one direction, and the catalytic function is maintained. The transition catalyst is not limited to the platinum catalyst 118, and another transition metal catalyst may be used. In the refrigerator 10, silica having fine pores (mesoporous silica) is used as the transition metal catalyst, and fine particles of a transition metal such as platinum or ruthenium are carried inside the fine pores.

  FIG. 9 is a perspective view from above of the vegetable container cover 105. As described above, the knurls 105a are formed on the upper surface on the front side of the vegetable container cover 105. Light from LED lighting (not shown) is applied to the inside of the vegetable room 100 from outside the knurl 105a. The vegetable container cover 105 includes an upper container 102 (not shown in FIG. 9) disposed below the vegetable container cover 105 and a rear upper space 101C formed between the vegetable container cover 105 and the upper container 102. A plurality of communicating holes 105c communicating with each other are formed. The number of the communication holes 105c is 24 in the refrigerator 10, and includes the vicinity of a cool air return port (not shown) formed on the right side of the back of the vegetable compartment 100.

  FIGS. 10A and 10B are perspective views from below of the vegetable container cover 105, wherein FIG. 10A is an overall view thereof, and FIG. 10B is an enlarged view of a portion C of FIG. FIG. 10A shows a state where the vegetable container cover 105 is observed from below the front side of the vegetable container cover 105. As shown in FIG. 10A, a transpiration board 105b (moisture storage / release member) is disposed on the lower surface of the vegetable container cover 105 (the surface facing the inside of the upper container 102). The transpiration board 105b is a plate-shaped member formed by weaving resin fibers such as PET fibers, and allows air to pass through but absorbs liquid moisture. The absorbed moisture is allowed to evaporate (release) with respect to the air.

  As shown in FIG. 10B, a rib 105 d is formed on the lower surface of the vegetable container cover 105 so as to face a communication hole 105 c that communicates the inside and outside of the vegetable compartment 100. Then, the evaporation board 105b is held on the lower surface of the vegetable container cover 105 by inserting the evaporation board 105b into the space 105e formed between the communication hole 105c and the rib 105d. Further, by holding the evaporation board 105b in the space 105e, the communication hole 105c is located under the vertical projection of the evaporation board 105b, and the communication hole 105c is closed by the evaporation board 105b. Thereby, while the air containing the water inside the lower container 101 and the upper container 102 is discharged to the outside of the vegetable compartment 100 through the communication hole 105c, the vegetable room 100 from the outside of the vegetable room 100 passes through the communication hole 105c. It is suppressed that cold air enters directly into the inside.

  In addition, when the air inside the rear upper space 105C comes into contact with the vegetable container cover 105, moisture contained in the air may condense on the vegetable container cover 105 and generate dew water. However, the generated dew water is absorbed by the evaporation board 105b disposed over the entire area above the upper vessel 102. Therefore, the drop of the dew condensation water into the rear upper space 10C is suppressed.

  FIG. 11 is a side view of the vegetable container cover 105. 11, the lower container 101 and the lower container 102 disposed below the vegetable container cover 105 are indicated by phantom lines. The evaporation board 105b faces the inside of the upper container 102 and is attached to the lower surface of the vegetable container cover 105. Although not shown in FIG. 11, cool air for cooling the vegetable compartment 100 flows above the vegetable container cover 105. Therefore, the flowing cool air flows to lick the evaporation board 105b exposed from the communication hole 105c. As a result, the liquid water absorbed by the evaporation board 105b becomes water vapor and is released to the flowing cool air. That is, the moisture in the vegetable room 100 is absorbed by the evaporation board 105b, and the absorbed moisture is released outside the vegetable room through the communication hole 105c. For this reason, the evaporation board 105 b absorbs water excessively, and water droplets are prevented from dropping into the upper container 102.

  FIG. 12 is a perspective view of the lower container 101 from the front side. The inside of the lower container 101 is divided by a partition 103 into a front side and a back side. A rear lower space 101A is formed inside the lower container 101 on the back side, and a front space 101B (not shown in FIG. 12) is formed inside the lower container 101 on the front side. . A lower container cover 110 is attached to the back side of the lower container 101 so as to cover a surface (condensation surface 101a, not shown in FIG. 12) on which dew condensation water adheres. The appearance of the dew condensation water will be described later with reference to FIG.

  FIG. 13 is a perspective view of the lower container 101 from the back side. The partition 103 that divides the inside of the lower container 101 as described above is supported by the pair of guide portions 104 provided on the left and right inner walls of the lower container 101. Further, a surface (ie, an outer surface) on the opposite side of the lower container 101 to which the lower container cover 110 (see FIG. 12) is attached is provided with a surface 113 for blowing cool air from the cool air supply adjusting means 141 (see FIG. 3). An evaporation cassette 112 for evaporating the condensed water into the cold air on the surface to which the dew condensation water adheres is attached.

  FIGS. 14A and 14B are perspective views of members attached to the rear side wall of the lower container 101. FIG. 14A is a lower container cover 110 attached to the inner surface, and FIG. 14B is a case 112 attached to the outer surface. is there. As shown in FIG. 14A, a plurality of slits 110a are formed in the lower container cover 110. The direction of the formed slit 110a is formed so as to be directed downward when flowing from the front side to the back side. Even if dew condensation water is generated on the surface of the lower container cover 110 by forming the slit 110a in such a direction, the dew condensation water passes through the slit 110a and is a transpiration board 112e (described later) disposed on the back side thereof. , And the condensation water is prevented from falling into the rear lower space 101A.

  Further, the surface of the lower container cover 110 is subjected to graining. That is, the surface of the lower container cover 110 is roughened. This makes it difficult for the user to notice the presence of water droplets by increasing the hydrophilicity of the lower container cover 110 and making it difficult for water droplets to be formed. Therefore, it is possible to prevent the user from feeling uneasy that water drops may fall.

  Further, as shown in FIG. 14 (b), the evaporation cassette 112 is fitted with a case 112a which accommodates a cover 112c which is fitted so as to cover an evaporation board 112d (see FIG. 15) not shown in FIG. And a lower case 112b for fixing the cover 112c.

  FIGS. 15A and 15B are exploded perspective views of the evaporation cassette 112 attached to the outer rear surface of the lower container 101. FIG. 15A illustrates a state in which the evaporation board 112d is mounted, and FIG. 15B illustrates a state in which the evaporation board 112d is removed. . The state shown in FIG. 15A also shows a state in which the cover 112c is rotated to the front side and removed from the state shown in FIG. 14 to expose the evaporation board 112d. Describing this point, the lower end of the case 112a and the lower end of the cover 112c are rotatably locked. Therefore, as shown in FIG. 15A, when the cover 112c is removed from the case 112a, the cover 112c rotates about the locked portion as an axis and moves downward. Thereby, the plate-shaped evaporation board 112d is exposed to the front side.

  Further, an evaporating board 112e extending from the front side to the back side is connected to the lower end of the plate-shaped evaporating board 112d integrally with the evaporating board 112d. Accordingly, the integrated body composed of the evaporation board 112d and the evaporation board 112e disposed inside the evaporation cassette 112 is an L-shaped one made of resin fibers.

  These evaporation boards 112d and 112e are made of the same material as the evaporation board 105b described with reference to FIG. As will be described later in detail, water condensed on the inner side surface (condensation surface 101a shown in FIG. 16) of the lower container 101 hangs down the inner side surface and is absorbed by the evaporation board 112e. Then, the absorbed water diffuses through the evaporation board 112e and the evaporation board 112d in this order, and reaches the evaporation board 112d.

  As shown in FIG. 15 (b), a protective member 112f having a ventilation hole 112g formed therein through which air can pass is disposed on the back side of the evaporation board 112d. The cool air flowing through the back side of the evaporation cassette 112 passes through the ventilation holes 112g and contacts the back side of the evaporation board 112d. As a result, the moisture that has reached the evaporation board 112d is evaporated to the cold air that has come into contact therewith.

  FIG. 16 is a diagram showing a state in which moisture inside the rear lower space 101A is dewed and the dewed water evaporates to the outside of the vegetable room 100. Cold air from a cool air supply adjusting means 141 is blown onto a cold air blowing surface 113 formed integrally on the rear side wall of the lower vessel 101. As a result, the wall temperature in the vicinity of the spraying surface 113 becomes lower than the wall temperature in other portions. For this reason, moisture in the air that contacts the inner wall surface (condensation surface 101a) of the lower container 101 and that portion is condensed, and condensed water 117 is generated. The generated condensed water 117 flows by its own weight from the gap 114 formed in the lower part of the rear wall of the lower container 101 to the outside of the lower container 101, and further flows down to the evaporation board 112e through the slit 112c1 formed in the cover 112c. . The gap portion 114 may be formed at another place below the lower container 101, and may be formed on the bottom surface and the rear surface side of the lower container 101, for example.

  The moisture absorbed by the evaporation board 112e diffuses inside the evaporation boards 112e and 112d. At this time, the absorbed moisture diffuses upward inside the evaporation board 112d arranged vertically. Then, the moisture that diffuses in the evaporation board 112d is evaporated into the cool air that comes into contact with the evaporation board 112d as described above, whereby the moisture of the air inside the vegetable room 100 is discharged to the outside of the vegetable room 100. As described above, the evaporation boards 112e and 112d suck out the dew water flowing down on the inner surface of the rear wall from the gap 114 formed on the rear wall to the outside of the lower vessel 101 and discharge it to cool air. At this time, cold air is brought into direct contact with the rear side wall of the lower vessel 101, and the rear side wall itself is used as a dew condensation surface. Humidity can be controlled.

  In the refrigerator 10 of the present embodiment, as shown in FIG. 16, the vertical length (height) of the evaporation board 112d and the vertical length (height) of the spraying surface 113 are substantially the same. I have. Here, the length in the left-right direction of the evaporation board 112d and the length in the left-right direction of the spraying surface 113 are substantially the same, as shown in FIG. Therefore, the area of the evaporation board 112d is almost the same as the area of the spraying surface 113. Then, by blowing cool air onto the spraying surface 113 which is the outer surface of the lower container 101 and evaporating the moisture in the refrigerator from the evaporating cassette 112 disposed therebelow, the outer surface of the small lower container 101 is effectively used. , The humidity inside can be controlled.

  Here, a modified example of the lower container cover 110 attached to the rear side of the lower container 101 will be described.

  FIG. 17 is a view showing a modified example of the lower container cover 110 attached inside the lower container 101, and is a perspective view of the evaporation unit cover 116 attached in place of the lower container cover 110. Although the lower container cover 110 shown in FIG. 14A has a plate shape, an L-shaped evaporation unit cover 116 can be used instead of the lower container cover 110.

  A plurality of slits 116a are formed in the evaporation unit cover 116 so as to generate a downward air flow, similarly to the slits 110a in the lower container cover 110. However, on the right side of the evaporation unit cover 116, a facing member 116b facing the right side surface of the lower vessel 101 is formed. The surface of the evaporation unit cover 116 is subjected to graining similarly to the lower container cover 110.

  FIG. 18 is a perspective view showing the inside of the lower vessel 101 from the front side when the evaporation unit cover 116 shown in FIG. 17 is attached to the inside of the lower vessel 101. The evaporation unit cover 116 is fixed to the inner wall of the lower vessel 101 with screws (not shown) or the like. As described with reference to FIG. 16, in the refrigerator 10, dew water is intentionally generated by blowing cool air onto the blowing surface 113 (see FIG. 16) formed on the outer surface of the lower container 101. It has become.

  However, the spraying surface 113 and the outer surface on the right side of the lower container 101 are close to each other. Therefore, when the lower vessel 101 is cooled by blowing cold air onto the blowing surface 113, the cold heat is transmitted to the right inner surface, and condensed water may be generated on the right inner surface. Therefore, as shown in FIG. 18, the evaporation unit cover 116 including the facing member 116b is disposed on the right side on the back side in order to collect dew water that may be generated on the inner surface on the right side. Further, the L-shaped evaporation unit cover 116 has a dew condensation water receiving portion also formed on the bottom surface, and has a slope such that the bottom surface descends to the back side. Therefore, even if the condensed water generated on the right side surface reaches the bottom surface, it can be guided to the rear side, and finally the moisture can be absorbed by the evaporation boards 112e and 112d and released to the cool air. It is.

  On the right side surface of the evaporation unit cover 116, that is, below the facing member 116b, there is formed a groove 116c having an inclination from the front side to the rear side. When the right side surface of the lower vessel 101 is cooled and condensed water is generated on the surface of the facing member 116b, the condensed water dropped by its own weight is received by the groove 116c inclined from the right side wall to the rear side wall. Falling into the container 101 is prevented. Then, the condensed water received flows through the groove 116c to the rear side, passes through the dew condensation water discharge section 116d provided in the vicinity of the slit 116a, and passes through the evaporation board disposed on the rear side of the evaporation unit cover 116. 112e. By doing so, dew water generated on the surface of the facing member 116b is also discharged to the outside of the vegetable compartment 100. That is, since the dew condensation water guide member extending from the right side wall adjacent to the rear side wall to the rear side wall is attached to the inner surface of the container, not only the dew condensation water condensed inside the rear side wall, but also the dew condensation inside the right side wall. The condensed water is also supplied to the inside of the rear wall, and can be finally discharged to the outside of the rear wall by the evaporation board 112e.

  A small gap is formed between the inner wall of the lower container 101 and the facing surface of the facing member 116b, although these are fixed by screws or the like (not shown). However, since an air layer is formed between them, heat transfer performance is poor, and condensed water is hardly generated. Therefore, generation of dew water between these gaps is sufficiently suppressed.

  Next, the operation of the lower container 101 and the like when the vegetable compartment door 6 of the refrigerator 10 is pulled out will be described with reference to FIGS. 19 to 22, illustration of some of the members described above is omitted for simplicity of illustration.

  FIG. 19 is a cross-sectional view of the lower container 101 when the lower container 101 is completely accommodated in the vegetable compartment 100 of the refrigerator 10 main body. FIG. 19 shows a cross section when the vicinity of the lock handle 106 is cut in a direction from the front side to the back side when viewed from the left and right directions. As shown in FIG. 19, when the lower container 101 is stored in the refrigerator 10, the vegetable container cover 105 covers the entirety of the lower container 101 and the upper container 102 that are openings of the lower container 101 (that is, the front space 101 </ b> B). And the rear upper space 101C). Thereby, the airtightness inside these spaces is enhanced. Therefore, the carbon dioxide concentration in all the spaces in the storage container 101, that is, not only the rear lower space 101A but also the front space 101B and the rear upper space 101C can be maintained at 1000 ppm or more. Further, since the evaporation board 105b is located in the vertical projection of the rear upper space 101C, the humidity in the rear upper space 101C can be controlled more effectively.

  Also, at this time, the vegetable compartment is provided by the evaporation board 105b (see FIG. 10 and not shown in FIG. 19) and the evaporation cassette 112 (see FIG. 6 and not shown in FIG. 19) arranged on the lower surface of the vegetable container cover 105. The humidity inside 100 is controlled. Each space constituting the vegetable compartment 100 includes a communication hole 102 (see FIG. 4, not shown in FIG. 19) formed in the bottom surface of the upper container 102 and communication holes 106 c, 106 d, formed in the lock handle 106. 106e (see FIG. 8, not shown in FIG. 19), thereby controlling the overall humidity of the vegetable compartment 100.

  FIG. 20 is a cross-sectional view showing the lower container 101 when the lower container 101 is slightly pulled out from the refrigerator 10, specifically, when the front space 101 </ b> B is drawn out of the vegetable compartment 100. When the lower container 101 is pulled out to the front side, the upper container 102 is also drawn out to the front side accordingly. However, the relative position of the upper container 102 inside the lower container 101 does not change, and even if the lower container 101 is pulled out to the front side, the upper container 102 is supported and fixed above the rear lower space 101A. Up to.

  When the lower container 101 is pulled out to the front side, the vegetable container cover 105 slides on the upper end of the upper container 102 with the pulling-out operation, and the upper end portion 105 d of the vegetable container cover 105 contacts the front side surface of the lock handle 106. I do. Thereby, even if the lower container 101 is pulled out to the front side, only the front space 101B is opened to the outside (exposed from the vegetable container cover 105), and the opening of the rear upper space 101C is covered with the vegetable container cover 105. The airtightness of the rear upper space 101C is maintained. Therefore, the concentration of carbon dioxide generated from vegetables and the like can be maintained higher in the rear upper space 101C than in the front space 101B. Further, when the lower container 101 is pulled out to the front side, the moving amount of the vegetable container cover 105 is smaller than the moving amount of the upper container 102. Therefore, when the user wants to use only the front space 101B, the operation of the vegetable container cover 105 and the lock handle 106 is not required.

  When the lower container 101 is further pulled out from the state shown in FIG. 20 to the front side, the lower container 101 is pulled out with the vegetable container cover 105 remaining inside the refrigerator 10 main body. That is, when the rear upper space 101C is also drawn out of the vegetable compartment 100, not only the opening of the front space 101B but also a partial opening of the rear upper space 101C is exposed from the vegetable container cover 105.

  FIG. 21 is a cross-sectional view showing a state where the rear upper space 101C is released by releasing the lock handle 106 after completely pulling out the lower container 101 from the inside of the refrigerator 10. By operating the lock handle 106, the vegetable container cover 105 moves so that the upper end portion 105d (not shown in FIG. 21) on the front side of the vegetable container cover 105 is higher than the upper end of the lock handle 106. As a result, the rear upper space 101C is opened to the outside, and the upper container 102 can be pulled out to the front side.

  FIG. 22 is a cross-sectional view of the refrigerator 10 when the lower container 101 and the upper container 102 are completely drawn out of the refrigerator 10. When the upper container 102 is completely pulled out, the lower end on the front side of the upper container 102 is placed on the upper end of the partition 103, whereby stable extraction of vegetables and the like becomes possible. When the upper container 102 is completely pulled out, the vegetable container cover 105 is arranged with a slight inclination from the back side to the front side. In other words, the vegetable container cover 105 is arranged inside the refrigerator 10 such that the vertical height of the front end (the upper end 105d) is slightly higher than the rear end 105e. Thereby, a wide space (extraction opening) opened to the outside of the upper container 102 can be secured, and vegetables and the like can be easily extracted.

  In the present embodiment, since trimethylamine, which is an alkaline gas, is decomposed in a short time by the platinum catalyst 118, neutralization of the surface of the vegetable acidified by dissolution of carbon dioxide can be suppressed, and the acidity of the surface can be increased. It becomes possible. That is, when vegetables are stored in the storage container, the pH of the surface increases in the related art, whereas the pH of the surface decreases in the present embodiment. As a result, enzymes and microorganisms generated on the surface of the vegetables are suppressed, and the progress of putrefaction is suppressed. In addition, since carbon dioxide is also generated when trimethylamine is decomposed, the effect of increasing carbon dioxide is higher than when a photocatalyst is used. When an experiment was actually performed, it was found that the use of the platinum catalyst 118 had about twice the carbon dioxide generating ability as that of the use of the photocatalyst. For this reason, even in a wide area, it is possible to increase carbon dioxide inside.

  FIG. 23 shows the remaining amount of vitamin C in the vegetables in each space of the storage container for the conventional structure intended to increase the freshness of only the vegetables in the rear lower space using a photocatalyst, and the structure of this embodiment. It is a figure showing the result of the experiment which measured. FIG. 23 (a) shows a comparison of the residual amount of vitamin C after a lapse of 7 days after storing a half-cut orange in the rear upper space 101C, which is about 21% higher than the conventional amount. Was. FIG. 23 (b) shows a comparison of the residual amount of vitamin C after 6 days with storing the leek cut in half in the front space 101B, and it was found that it was about 22% higher than the conventional one. . FIG. 23 (c) shows the remaining amount of vitamin C after seven days have passed since komatsuna was stored in the lower space 101A on the rear side, which was found to be equivalent to the conventional case. That is, according to the present embodiment, not only the rear lower space 101A, but also the rear upper space 101C and the front space 101B, the nutrient components in the vegetables are less likely to be consumed by the aging effect, and the vegetables have a lower nutritional value. It is possible to keep it high for a long time.

  Although the present embodiment has been described with reference to the drawings, the present invention is not limited to the above-described embodiment.

  For example, although the evaporation cassette 112 is arranged on the back side of the lower vessel 101, an evaporation board may be arranged along the inner surface on the back side of the lower vessel 101 instead of the evaporation cassette 112. In this case, the moisture storage / release member is disposed inside the rear lower space 101A. At this time, it is preferable to provide a communication hole that communicates the inside and outside of the upper vessel 101 above the evaporation board. As a result, water condensed on the inner surface of the lower vessel 101 above the evaporation board is absorbed by the evaporation board disposed below the water. Then, the absorbed water is appropriately evaporated by the air inside the lower container 101 (in the rear lower space 101A) and discharged to the outside of the lower container 101 through a communication hole formed at a position easily discharged to the outside. Will be done.

  Further, for example, the evaporation board 105b as the moisture storage / release member is disposed on the lower surface of the vegetable container cover 105, but the moisture storage / release member is not on this lower surface but on the side surface (for example, the side surface on the back side) of the upper container 102. There may be.

  Further, the rear upper space 101C as the first space, the rear lower space 101A as the second space, and the front space 101B communicate with each other through a communication hole 106e formed in the lock handle 106. If a moisture storage / release member is arranged in at least one of the spaces, the humidity can be controlled in any space. Of course, the moisture storage / release member may be arranged in each of these two spaces. In the above-described embodiment, the evaporation board 105b is arranged inside the rear upper space 101C, and no moisture storage / release member is arranged inside the rear lower space 101A.

  Further, for example, the area of the evaporation board 112d does not need to be substantially the same as the area of the spraying surface 113 formed on the outer surface of the lower vessel 101, and from the viewpoint of performing more reliable dew condensation, the area of the spraying surface 113 May be larger than the area of the evaporation board 112d. That is, the rear wall of the lower vessel 101 may be configured such that the area of the area exposed to the storage room is larger than the area of the area where the evaporation board 112d is attached. At this time, the evaporation board 112d is attached so as to fit in a position lower than the height center of the rear wall of the lower vessel 101. Further, the amount of cold air blown to the spray surface 113 may be appropriately changed according to the amount of vegetables stored in the vegetable room 100 or the like.

  Further, the spraying surface 113 is arranged on the right side, but may be changed as appropriate depending on the position of the cool air supply adjusting means 141, or may be near the center or on the left side.

  The communication holes 105c formed in the vegetable container cover 105 do not need to be at equal intervals, and can be formed at appropriate intervals as needed. However, by providing it in the vicinity of the path of the cool air flowing outside the vegetable container cover 105, the water inside the vegetable room 100 can be discharged to the outside more efficiently.

  Further, after the lower container 101 is pulled out to the front side, the support and fixing of the upper container 102 is released by operating the lock handle 106, but without operating the lock handle 106, the upper container is pulled out as the lower container 101 is pulled out. The container 102 may also be opened to the outside.

  In the refrigerator 10, the lower space 101A, the front space 101B, and the rear upper space 101C are divided into three spaces, but two spaces may be formed, and four or more spaces are formed. You may do so.

  In addition to these, a part of the configuration of one embodiment can be replaced with the configuration of another embodiment, and the configuration of one embodiment can be added to the configuration of another embodiment. is there. Furthermore, for a part of the configuration of each embodiment, another configuration can be added, deleted, or replaced.

10 refrigerator 100 vegetable room (storage room)
101 Lower container (storage container)
101A Rear lower space (second space)
101B Front space 101C Rear upper space (first space)
102 Upper container (inner container, storage container)
102a communication hole (space communication hole)
103 Partition 105 Vegetable container cover (cover member)
105a Knurling 105b Transpiration board (moisture storage / release member)
105c communication hole (inside / outside communication hole)
105d rib 106 lock handle (support and release mechanism)
106a Depressed portion 106b Depressed portion 106c Communication hole 106d Communication hole (space communication hole)
106e communication hole (space communication hole)
110 Lower container cover 112 Evaporation cassette 113 Spray surface 114 Gap 116 Evaporation unit cover 118 Platinum catalyst

The present inventors have conducted intensive studies to solve the above-mentioned problems. as a result,
A storage room,
A drawer-type door for opening and closing the storage room;
A drawer-type storage container housed in the storage room,
A moisture storage / release member that moves with the movement of the door or the storage container,
An outlet for blowing cold air into the storage chamber;
On the upper side of the storage container, a container cover that increases the degree of sealing of the storage container,
The moisture storage / release member,
A space of the storage container capable of storing a storage item,
And a space on the opposite side of the space with respect to the moisture storage / release member,
Preferably, the outlet is located rearward of a back surface of the storage container,
The rear side and the front side of the storage container communicate with the outside of the storage container, respectively.
Thus, it has been found that the above problem can be solved.
Also,
A storage room,
A drawer-type door for opening and closing the storage room;
A drawer-type storage container housed in the storage room,
A moisture storage / release member that moves with the movement of the door or the storage container,
An outlet for blowing cold air into the storage chamber;
On the upper side of the storage container, a container cover that increases the degree of sealing of the storage container ,
The moisture storage / release member,
From one surface facing the space of the storage container capable of storing the stored material, it is possible to absorb moisture in the space,
From the other side exposed to air having a lower humidity than the space, the absorbed moisture can be released to the air,
A refrigerator,
It has been found that the above problem can be solved by allowing a part of the cool air blown out from the outlet to pass through the space to the front side.

Claims (3)

A storage room,
A drawer-type door for opening and closing the storage room;
A drawer-type storage container housed in the storage room,
A moisture storage / release member that moves with the movement of the door or the storage container,
An outlet for blowing cool air into the storage room,
The moisture storage / release member,
From one surface facing the space of the storage container capable of storing the stored material, it is possible to absorb moisture in the space,
From the other side exposed to air having a lower humidity than the space, the absorbed moisture can be released to the air,
A refrigerator,
A refrigerator according to claim 1, wherein a part of the cool air blown out from the outlet passes through the space to a front side. In claim 1,
The refrigerator, wherein the low-humidity air is cold air supplied from the outlet to cool the storage room.   3. The refrigerator according to claim 1, further comprising a surface or a cover that is disposed above the space and that enhances the tightness of the storage container. 4.

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