JP2018105600A - refrigerator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a refrigerator in which dew condensation does not occur on an inner surface of a storage container, even in the case where the storage container is maintained at high humidity.SOLUTION: A refrigerator includes a refrigerating room and a chamber 11 for food arranged in the refrigerating room. The chamber 11 includes an outer container 48 and an inner container 45 stored in the outer container 48. The outer container 48 has a double structure of a first container 46 on the outside and a second container 47 on the inside. In the first container 46 and the second container 47, openings 46a, 47a are formed on the front surface respectively, and between container walls of the first container 46 and container walls of the second container 47, predetermined gaps are provided. Out of the gaps, cold storage materials 60 are installed in a first gap provided between a container wall 47c which is on the upper side with respect to the front in the second container 47 and a container wall 46c which is on the upper side with respect to the front in the first container 46, and in a second gap provided between a container wall 47b which is on the depth side with respect to the front of the second container 47 and a container wall 46b which is on the depth side with respect to the front of the first container 46.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a refrigerator provided with a storage container for storing food such as vegetables in a storage chamber.

  There is a refrigerator in which a wall surface of a storage container is made into a multiple structure and a cold storage material is arranged between the multiple structures in order to suppress temperature fluctuation in the food storage container and make the temperature distribution uniform (for example, Patent Document 1).

  Moreover, in order to refrigerate and preserve foods such as vegetables and meat in a uniform state, there is a refrigerator that circulates cold air at a uniform flow rate in a storage chamber (for example, Patent Document 2).

JP 2003-42632 A JP2015-31499A

  However, since the refrigerator like patent document 1 arrange | positions a cool storage material in the storage container which stores a foodstuff, the temperature of a storage container falls. Therefore, when the humidity in the storage chamber in which the storage container is installed is increased, condensation occurs in the storage container, and if this condensation adheres to the food in the storage container, there is a problem that it causes rot.

  Moreover, since the refrigerator like patent document 2 circulates cold air also in the storage container installed in the storage chamber, there existed a problem that cold air hits directly the food in a storage container and a foodstuff dries.

  Therefore, an object of the present invention is to provide a refrigerator that does not cause condensation on the inner surface of the storage container even when the inside of the storage container is maintained at high humidity.

  In order to solve the above problems, the refrigerator according to the present invention is configured as follows.

  First, the present invention includes a cooler, a storage room, and a food storage container disposed in the storage room, the storage container being accommodated in the outer container and the outer container, and storing the food. And the outer container has a double structure of an outer first container and an inner second container, and the first container and the second container are respectively An opening is formed on the front surface, and a predetermined gap is provided between the container wall of the first container and the container wall of the second container, and the front surface of the second container is included in the gap. A first gap provided between the upper container wall with respect to the front surface of the first container and the upper container wall with respect to the front surface, and In the second gap provided between the container wall and the container wall on the back side with respect to the front surface of the first container, Wood is placed, characterized in that.

  According to the present invention, in the gap provided between the first container and the second container of the outer container, the container wall on the upper side with respect to the front surface of the second container and the upper side with respect to the front surface of the first container. A cold storage material is provided in a first gap provided between the container wall and the container wall. Further, among the gaps, the cold storage material is also provided in the second gap provided between the container wall on the heel side with respect to the front surface of the second container and the container wall on the back side with respect to the front surface of the first container. Is provided. When the inner container is accommodated in such an outer container, when the temperature of the storage chamber becomes higher than the melting point of the cold storage material provided in the first gap and the second container, the cold storage material is melted and then The inside of the inner container is cooled by the generated latent heat. Further, when the cooled cold air is supplied to the storage chamber and the temperature in the storage chamber becomes lower than the melting point of the cold storage material, the cold storage material absorbs heat from the inner container, and overcooling of the inner container can be suppressed. Thereby, temperature fluctuation can be suppressed, the temperature inside the inner container can be maintained at a desired temperature, and deterioration of the food stored in the inner container can be suppressed. In addition, since a space is formed between the outer container provided with the cold storage material and the inner container in which the food is stored, even when the inside of the storage container is maintained at high humidity, condensation is formed on the inner surface of the inner container. Does not occur, and food stored in the inner container is not spoiled. Furthermore, since the inner container is accommodated in the outer container and the cooled air is not directly supplied into the inner container, the food is prevented from drying.

  The present invention further includes a supply air passage that supplies the air cooled by the cooler to the storage chamber, and the rear container wall of the first container communicates with the second gap. The blower outlet to be formed is formed.

  According to the present invention, the air cooled by the cooler is supplied to the second gap from the air outlet formed in the container wall on the back side with respect to the front surface of the first container via the supply air passage. The Therefore, the temperature of the cold storage material provided in the second gap is lower than that of the cold storage material provided in the first gap. Therefore, condensation is likely to occur on the inner container wall of the first container, condensation on the upper container wall of the first container is suppressed, and condensed water from the upper container wall of the first container to the inner container is suppressed. Dripping can be suppressed.

  In the present invention, the predetermined gap is provided between a left and right container wall with respect to the front surface of the second container and a right and left container wall with respect to the front surface of the first container. A third gap, and a fourth wall provided between a lower container wall with respect to the front surface of the second container and a lower container wall with respect to the front surface of the first container. A gap is further provided, and each of the first gap, the second gap, the third gap, and the fourth gap is in communication with each other.

  According to the present invention, since each of the first gap, the second gap, the third gap, and the fourth gap communicates with each other, the second gap from the outlet is provided via the supply air passage. The cold air supplied to the first gap is also supplied to the first gap, the third gap, and the fourth gap. Therefore, the outer container is cooled by the cooled air. Further, since the outer container is provided with the cold storage material, when the temperature of the outer container becomes lower than the melting point of the cold storage material, the cold storage material absorbs heat from the inner container, and overcooling of the inner container can be suppressed. Thereby, temperature fluctuation can be suppressed, the temperature inside the inner container can be maintained at a desired temperature, and deterioration of the food stored in the inner container can be suppressed.

  Further, according to the present invention, the air outlet is configured such that the cooled air supplied from the supply air passage is from the second gap to the first gap, from the first gap to the third gap, and It is formed at a position where the second gap is supplied in the order of the third gap.

  According to the present invention, the cooled air supplied from the supply air passage is supplied from the outlet to the second gap, and then supplied from the second gap to the first gap. The cooled air is supplied from the first gap to the third gap. Further, the cooled air is supplied from the second gap to the third gap. Therefore, the temperature of the cold storage material provided in the second gap is lower than that of the cold storage material provided in the first gap. Moreover, the temperature of the cold storage material provided in the second gap is lower than that of the third gap. For this reason, condensation tends to occur on the inner container wall on the back side of the first container, the condensation on the upper container wall and the left and right container walls in the first container is suppressed, and the upper container wall and the left and right sides in the first container are suppressed. It is possible to suppress the condensation of condensed water from the container wall to the inner container.

  Further, the present invention includes a return air passage that returns the air in the storage chamber to the cooler, and the return air passage is provided at a position near a lower container wall with respect to the front surface of the first container. It is characterized by that.

  According to this invention, the return air path of the air which returns to a cooler from a storage chamber is provided in the position close | similar to the lower container wall with respect to the front in a 1st container. The air returning from the storage chamber to the cooler is higher than the temperature in the inner container, and no cold storage material is provided in the gap corresponding to the lower container wall in the first container. Condensation is suppressed on the container wall.

It is a front view which shows roughly the inside of the refrigerator of embodiment of this invention. It is side surface sectional drawing which shows the FF cross section in FIG. 1 of a refrigerator. It is side surface sectional drawing which shows the GG cross section in FIG. 1 of a refrigerator. It is the perspective view which expanded and showed the muro. It is the perspective view which unfolded and showed the cool storage material installed in the outer container and outer container. It is sectional drawing which shows the periphery in the cross-sectional view of FIG. It is a cross-sectional perspective view corresponding to FIG. It is HH sectional drawing in FIG. It is a figure which shows the temperature characteristic of a cool storage material. FIG. 7 is a cross-sectional view corresponding to FIG. FIG. 9 is a cross-sectional view corresponding to FIG. It is a figure which shows the comparison of the temperature change with the muro of embodiment, and the vegetable room of a comparative example.

  Embodiments of the present invention will be described below with reference to the drawings.

(About the overall structure of the refrigerator)
FIG. 1 is a front view schematically showing the inside of the refrigerator according to the embodiment of the present invention. 2 is a side cross-sectional view showing the FF cross section in FIG. 1 of the refrigerator. FIG. 3 is a side sectional view showing a GG section in FIG. 1 of the refrigerator.

  As shown in FIG. 1, a refrigerator 1 according to an embodiment of the present invention includes a refrigerator body 2. In front of the refrigerator body 2, provided are a single door and a drawer door, which are not shown in FIGS. 1 to 3. The refrigerator body 2 includes a refrigerator compartment 3 in the upper stage as a storage room for food and the like, an ice making room 4 and a quick freezing room 5 in the middle stage, and a lower stage in the ice making room 4 and the quick freezing room 5. A large freezer compartment 6 is provided. In the following description, the ice making room 4, the quick freezer room 5, and the large freezer room 6 are collectively referred to as the freezer room 6. Moreover, the refrigerator main body 2 is provided with a drawer refrigeration room 7 which can store a plastic bottle, vegetables, etc. in the lowermost stage as a storage room for food or the like.

  The refrigerator body 2 includes an outer box 2a, an inner box 2b, and a heat insulating material (not shown) arranged between the outer box 2a and the inner box 2b. The outer box 2a is formed of a steel plate and has an opening on the front surface where the door is provided. The inner box 2b is formed of a synthetic resin, and is disposed in the outer box 2a with a gap from the outer box 2a. Similarly to the outer box 2a, the inner box 2b has an opening on the front surface where the door is provided. The heat insulating material is formed of foamed polyurethane, and is filled in the gap between the outer box 2a and the inner box 2b.

  Inside the inner box 2b, heat insulating partition walls 8 and 9 are disposed. The heat insulating partition wall 8 partitions the inside of the inner box 2 b into a refrigerator compartment 3 and a freezer compartment 6. The heat insulating partition wall 9 partitions the inside of the inner box 2 b into a freezer compartment 6 and a drawer refrigerator compartment 7. A shelf for storing food or the like is disposed inside the refrigerator compartment 3, but is not shown in FIGS. 1 to 3. The ice making room 4, the quick freezing room 5, and the freezing room 6 contain cases for storing ice, frozen food, and the like, but are not shown in FIGS. The drawer refrigeration chamber 7 accommodates a case 10 for storing plastic bottles, vegetables and the like. In addition, a straw 11 as a storage container according to the present invention is disposed in the lower part of the refrigerator compartment 3. As an example, vegetables are stored in the muro 11. A glass shelf 12 is disposed on the upper portion of the muffle 11. Details of the muro 11 will be described later.

  As shown in FIGS. 2 and 3, a cooling chamber 14 that communicates with the freezer compartment 6 is provided on the back side of the freezer compartment 6 as viewed from the opening side of the front surface of the freezer compartment 6. The cooling chamber 14 is provided with a cooler for cooling the air supplied to the refrigerator compartment 3, the freezer compartment 6, and the drawer refrigerator compartment 7. 2 and 3, the cooler is not shown. The cooler of the present embodiment is a so-called fin tube heat exchanger in which a circular pipe as a heat transfer pipe is used as a refrigerant flow path and the outside of the pipe is an air flow path. In the cooler, the liquid refrigerant evaporates inside the heat transfer tube to cool the air outside the heat transfer tube. Of course, other types of heat exchangers such as a heat exchanger using a flat porous tube or a deformed tube may be employed as the cooler.

  A machine room 15 is provided in the lower part of the refrigerator 1 and on the back side of the drawer refrigeration room 7 when viewed from the opening side of the drawer refrigeration room 7. Components such as a compressor 16 that compresses the refrigerant, a radiator (not shown), and a radiator fan (not shown) are arranged in the machine room 15. The cooler described above is connected to an expansion valve such as a compressor 16, a radiator (not shown), and a capillary tube (not shown) via a refrigerant pipe, and constitutes a vapor compression refrigeration cycle circuit. In the refrigerator 1 according to the present embodiment, isobutane (R600a) is used as a refrigerant for the refrigeration cycle.

  The partition plate 14a that partitions the freezer compartment 6 and the cooling compartment 14 is formed with a plurality of ducts (not shown), and the air cooled by the cooler is directed from the duct in the direction of arrow A as shown in FIG. To be supplied. Further, as shown in FIG. 2, a supply port 24 is formed in the heat insulating partition wall 8, and the cooled air supplied from the duct is supplied in the direction of arrow R through the supply port 24.

  A multi-duct 20 that functions as a supply air passage is provided on the back side of the refrigerator compartment 3 when viewed from the opening side of the refrigerator compartment 3. The cooled air supplied in the direction of arrow R through the supply port 24 is supplied into the multi-duct 20. A plurality of ducts (not shown) are formed on the wall surface of the multi-duct 20 on the refrigerator compartment 3 side, and the cooled air flows in the direction of arrow B as shown in FIG. To go to the refrigerator compartment 3. Further, the multi-duct 20 communicates with the supply air passage forming unit 20a shown in FIG. 3, and the cooled air is supplied from the multi-duct 20 to the supply air passage forming unit 20a. The supply air path forming unit 20a communicates with the outer container 48 of the potter 11, and the cooled air is supplied from the supply air path forming unit 20a to the inside of the outer container 48. The details of the air flow in the hollow 11 will be described later.

  As shown in FIG. 2, a supply port 21 is formed in the heat insulating partition wall 9. The cooled air supplied from the duct is supplied in the direction of arrow C through the supply port 21 and supplied to the drawer refrigerator compartment 7.

  A return air passage 22 is formed on the back side of the refrigerator 1. A space is formed inside the heat insulating partition wall 8, and the heat insulating partition wall 8 communicates with the return air passage 22 through an opening (not shown). Further, an opening (not shown) is formed on the upper surface of the heat insulating partition wall 8 at a position facing the bottom surface of the hollow 11. The air in the refrigerator compartment 3 returns to the inside of the heat insulating partition wall 8 through the opening formed in the upper surface of the heat insulating partition wall 8 as shown by an arrow D in FIG. It returns to the return air path 22 through the opening which is omitted.

  As shown in FIG. 3, a return port 23 is formed on the back side of the freezer compartment 6 as viewed from the opening side of the freezer compartment 6. The return port 23 communicates with the return air passage 22 through an opening (not shown). The air in the freezer compartment 6 returns to the return port 23 as shown by an arrow E in FIG. 3, and returns to the return air path 22 from the return port 23 through an opening (not shown).

  A return port 25 is formed on the back side of the drawer refrigeration chamber 7 as viewed from the opening side of the drawer refrigeration chamber 7. The return port 25 communicates with the return air path 22. As shown by arrows Q in FIGS. 2 and 3, the air in the drawer refrigerator compartment 7 returns to the return port 25 and returns from the return port 25 to the return air path 22.

  The air returning from the return air passage 22 is supplied to the back side of the cooler through an opening (not shown) provided on the back side of the cooling chamber 14. The air supplied to the back side of the cooler is cooled again by the cooler, and is supplied to the refrigerator compartment 3, the straw 11, the freezer compartment 6, and the drawer refrigerator compartment 7 as described above. In this way, air circulation in the refrigerator 1 is performed.

(About Muroro)
FIG. 4 is a perspective view showing the spreader 11 in an expanded state. FIG. 5 is a perspective view showing the outer container of the pot 11 and the cold storage material installed in the outer container in an expanded manner. FIG. 6 is a cross-sectional view showing the spreader 11 and the periphery of the spreader 11 in the cross-sectional view of FIG. 3. FIG. 7 is a cross-sectional perspective view corresponding to FIG. 8 is a cross-sectional view taken along line HH in FIG.

Next, with reference to FIGS. 4 to 8, a detailed configuration of the spreader 11 will be described. As shown in FIG. 4, the straw 11 includes a door 40, an inner container 45, and an outer container 48. The door 40 includes a panel part 41, a case part 42, a lid part 43, and a packing 44. A handle 41 a is rotatably attached to the panel portion 41.
The handle 41a is interlocked with a lock mechanism (not shown in the figure), and is rotatable in the direction of arrow I shown in FIG. By rotating the handle 41a in the direction of arrow I, the lock mechanism is released, and the inner container 45 connected to the door 40 and the door 40 can be pulled out from the outer container 48. Further, the inner container 45 is accommodated in the outer container 48, and the handle 41a is rotated in the direction opposite to the direction of the arrow I, so that the lock mechanism works and the spreader 11 is sealed.

  The lid portion 43 is a plate-like member and has a size that covers the opening 47 a of the second container 47 in the outer container 48. In the state where the packing 44 is attached to the lid 43 and the inner container 45 is accommodated in the outer container 48, the packing 44 is in close contact with the surface of the flange portion 47 i of the second container 47 in the outer container 48, so Keep sealed. The lid portion 43 to which the packing 44 is attached is attached to the case portion 42. Then, the case part 42 to which the lid part 43 is attached is attached to the panel part 41.

  The inner container 45 is a tray-shaped container formed of a synthetic resin and opened at the top. The inner container 45 stores food such as vegetables. A door 40 is attached to the front surface 45 a of the inner container 45. The inner container 45 can be accommodated in the second container 47 through the opening 47a of the second container 47 in the outer container 48, and in a state where the door 40 is closed, the inner wall surface of the second container 47 in the outer container 48, It is accommodated in a sealed space formed by the lid portion 43 of the door 40.

  The outer container 48 has a double structure of an outer first container 46 and an inner second container 47. The outer first container 46 is a box-shaped container made of synthetic resin and having an opening 46a formed in the front. The first container 46 includes a container wall 46 b on the back side with respect to the front surface of the first container 46, a container wall 46 c on the upper side with respect to the front surface of the first container 46, and left and right sides with respect to the front surface of the first container 46. Container walls 46d and 46e, and a container wall 46f on the lower side with respect to the front surface of the first container 46. A cooling air outlet 46g is formed in the container wall 46b on the back side of the first container 46. In addition, return ports 46h and 46i for air in the outer container 48 are formed in the left and right container walls 46d and 46e with respect to the front surface of the first container 46.

  A filter opening 46j is formed in the container wall 46b on the back side of the first container 46 at a lower right position when viewed from the opening 46a on the front surface of the first container 46. A rear cover 50a can be attached to the opening 46j.

  The inner second container 47 is a box-shaped container made of synthetic resin and having an opening 47a formed in the front. The second container 47 includes a container wall 47 b on the back side with respect to the front surface of the second container 47, a container wall 47 c on the upper side with respect to the front surface of the second container 47, and left and right sides with respect to the front surface of the second container 47. Container walls 47d and 47e, and a container wall 47f on the lower side with respect to the front surface of the second container 47. The second container 47 is smaller than the first container 46 and is sized to be accommodated in the first container 46 through the opening 46 a of the first container 46.

  A filter mounting portion 47g is provided in the lower right of the container wall 47b on the back side of the second container 47 when viewed from the front opening 47a of the second container 47, and the filter 50 is provided in the filter mounting portion 47g. It is attached. The filter 50 is covered with a front cover 50b.

  On the container wall 47b, the container wall 47c, and the container wall 47f of the second container 47, ribs 47h are provided at a plurality of locations. In a state where the second container 47 is housed in the first container 46, these ribs 47 h cause the container wall 46 c on the upper side with respect to the front surface of the first container 46 and the container wall on the upper side with respect to the front surface of the second container 47. As shown in FIG. 6 and FIG. 7, a first gap 48a is provided between the first gap 48c and the second gap 47c. Further, as shown in FIGS. 6 to 8, between the container wall 46 b on the back side with respect to the front surface of the first container 46 and the container wall 47 b on the back side with respect to the front surface of the second container 47, as shown in FIGS. A second gap 48b is provided by the rib 47h. Similarly, between the lower container wall 46f with respect to the front surface of the first container 46 and the lower container wall 47f with respect to the front surface of the second container 47, as shown in FIGS. The fourth gap 48c is provided by the rib 47h.

  A flange portion 47 i is provided around the opening 47 a on the front surface of the second container 47. The flange portion 47 i is formed in a size corresponding to the packing 44 of the door 40. In a state where the door 40 is closed, the packing 44 of the door 40 is in close contact with the surface of the flange portion 47i, and the sealing state of the hollow 11 is maintained.

  As shown in FIG. 5, the width W <b> 1 of the second container 47 is narrower than the width W <b> 2 of the first container 46, and when the second container 47 is accommodated in the first container 46, As shown in FIG. 8, a third gap 48 d is provided between the inner wall surface on the left and right sides with respect to the front surface and the outer wall surface on the left and right sides with respect to the front surface of the second container 47.

  In the present embodiment, the cold storage material 60 is installed in the first gap 48a, the second gap 48b, and the third gap 48c. Three cool storage materials 60 are installed in the first gap 48a, and one cool storage material 60 is installed in each of the left and right in the third clearance 48c. In the second gap 48b on the back side when viewed from the opening 47a on the front surface of the second container 47, two cold storage materials 60 are installed in two places excluding the attachment position of the filter 50.

  The cool storage material 60 is not installed in the fourth gap 48 c on the bottom surface side of the outer container 48. As described above, the inside of the heat insulating partition wall 8 in which the outer container 48 is installed is used as a return air passage, and air returning from the refrigerator compartment 3 flows, so that the temperature tends to be higher than the temperature inside the outer container 48. . Therefore, if the cool storage material 60 is installed in the fourth gap 48c, condensation easily occurs in the outer container 48. Therefore, the cool storage material 60 is not installed in the fourth gap 48c in order to suppress the occurrence of condensation. . Details will be described later.

  The cold storage material 60 uses a cold storage material using latent heat. In this embodiment, PM703 manufactured by JSR Corporation is used as an example. The regenerator 60 is a material in which paraffin is fixed with a polymer, and uses the amount of heat absorbed when the paraffin undergoes phase transition and the amount of heat released when the phase transition occurs. When the ambient temperature of the cool storage material 60 becomes higher than the melting point of the cool storage material 60, that is, the phase change temperature, the cool storage material 60 melts and the surroundings are cooled by latent heat generated at that time. Further, when the ambient temperature becomes lower than the phase change temperature of the cool storage material 60, the cool storage material 60 absorbs heat from the surroundings and suppresses surrounding supercooling. The cold storage material 60 has a characteristic of maintaining a substantially constant temperature when the cold storage material 60 is solidified and melted.

  FIG. 9 is a diagram illustrating temperature characteristics of the cold storage material 60 of the present embodiment. In the present embodiment, a cold storage material 60 having a phase change temperature of 5 ° C. is used. As shown in FIG. 9, the temperature of the regenerator 60 decreases as it continues to cool, and maintains a constant temperature when it reaches the phase change temperature. The cold storage material 60 of this embodiment maintains a temperature of 5 ° C. However, the temperature of the regenerator 60 begins to decrease again after the phase change is completed, and when the limit of the cooling capacity is reached, the temperature does not decrease below that. In the present embodiment, the temperature of the regenerator 60 changes phase by supplying cooled air to the regenerator 60 installed in the first gap 48a, the second gap 48b, and the third gap 48c. The temperature is lower than the temperature.

  FIG. 10 is a cross-sectional view corresponding to FIG. FIG. 11 is a cross-sectional view corresponding to FIG.

  Next, the flow of air in the pot 11 will be described with reference to FIGS. 10 and 11. As shown in FIGS. 10 and 11, the multi-duct 20 communicates with the supply air passage forming portion 20 a, and the supply air passage formation portion 20 a is on the back side of the front surface of the first container 46 of the outer container 48. It communicates with the air outlet 46g formed in the container wall 46b. Therefore, the cooled air supplied from the multi-duct 20 is supplied in the direction of the arrow K shown in FIGS. 10 and 11 from the supply air passage forming unit 20a toward the outlet 46g. Further, the cooled air supplied in the direction of the arrow K proceeds in the direction of the arrow L shown in FIG. 10, and the container wall 46b in which the outlet 46g is formed and the container wall 47b on the back side of the second container 47 Is supplied to a second gap 48b provided between the two. As a result, the cool storage material 60 installed in the second gap 48b is cooled by the cooled air. Since the second gap 48b is provided at a position closest to the air outlet 46g compared to the other gaps, the cold storage material 60 installed in the second gap 48b is the cold storage material installed in the other gap. It will be cooled to a temperature lower than 60.

  Next, the cooled air supplied in the direction of the arrow K proceeds in the direction of the arrow M shown in FIGS. 10 and 11, and the container wall 46c on the upper side of the first container 46 in the outer container 48 and the second container. 47 is supplied to a first gap 48a provided between the upper 47 and the container wall 47c. As a result, the cold storage material 60 installed in the first gap 48a is cooled by the cooled air. The first gap 48a is located farther from the air outlet 46g than the second gap 48b, and the space formed by the first gap 48a is larger than the space formed by the second gap 48b. Is wider. Therefore, the cool storage material 60 installed in the first gap 48a is cooled to a higher temperature than the cool storage material 60 installed in the second gap 48b. As a result, the inner side of the first container 46 that forms the second gap 48b rather than the upper container wall 46c of the first container 46 that forms the first gap 48a and the upper container wall 47c of the second container 47. The container wall 46b and the container wall 47b on the back side of the second container 47 are more likely to condense. In other words, the occurrence of dew condensation on the upper container wall 46c of the first container 46 and the upper container wall 47c of the second container 47 forming the first gap 48a is suppressed. Therefore, it is possible to suppress the dew condensation water from dropping on the inner container 45 from the upper container wall 47 c of the second container 47.

  Next, the cooled air supplied to the first gap 48a travels in the direction of arrow N shown in FIG. That is, the third gap provided between the left and right container walls 46d and 46e of the first container 46 and the left and right container walls 47d and 47e of the second container 47 from the first gap 48a. To the gap 48d. Further, the cooled air supplied to the second gap 48b travels in the direction of arrow P shown in FIG. That is, the third gap provided between the left and right container walls 46d and 46e of the first container 46 and the left and right container walls 47d and 47e of the second container 47 from the second gap 48b. To the gap 48d. As a result, the cool storage material 60 installed in the third gap 48d is cooled by the cooled air. The third gap 48d is located farther from the outlet 46g than the second gap 48b, and is located farther from the outlet 46g than the first gap 48a. Therefore, the cool storage material 60 installed in the third gap 48d is cooled to a higher temperature than the cool storage material 60 installed in the second gap 48b. As a result, the container wall 46b and the second container on the back side of the first container 46 forming the second gap 48b rather than the container walls 46d and 46e on the left and right sides of the first container 46 forming the third gap 48d. The container wall 47b on the back side of 47 is more likely to condense. In other words, the occurrence of condensation on the left and right container walls 46d, 46e of the first container 46 and the left and right container walls 47d, 47e of the second container 47, which form the third gap 48a, is suppressed. Therefore, dripping of condensed water to the inner container 45 from the left and right container walls 47d and 47e of the second container 47 can be suppressed.

  The air supplied to the first gap 48a, the second gap 48b, and the third gap 48d is a return port formed in the left and right container walls 46d and 46e of the first container 46 as shown in FIG. 46h and 46i proceed in the direction of arrow Q, and return to the return air path 22 through an opening (not shown).

  Further, as described above, the air in the refrigerator compartment 3 enters the inside of the heat insulating partition wall 8 through the opening (not shown) formed on the upper surface of the heat insulating partition wall 8 as indicated by an arrow D in FIG. It returns and returns to the return air path 22 from the inside of the heat insulation partition wall 8 through the opening which is not shown.

  As described above, the spreader 11 of the present embodiment has a double structure for the outer container 48, and latent heat is used for the first gap 48a, the second gap 48b, and the third gap 48d of the outer container 48. The cold storage material 60 was installed. The surface temperature of the cool storage material 60 is kept at a temperature lower than the phase change temperature set to 5 ° C. in the present embodiment. As a result, the temperature rise of the inner container 45 accommodated in the outer container 48 can be suppressed. In addition, even when food such as vegetables is stored in the inner container 45 and the temperature of the inner container 45 rises, the time for the temperature of the inner container 45 to return to near the phase change temperature can be shortened by the action of the cold storage material 60. it can.

  Further, a space is formed between the outer container 48 provided with the cold storage material 60 and the inner container 45 in which the food is stored. Therefore, when the temperature of the outer container 48 is kept low by the cold storage material 60, the temperature of the inner container 45 is indirectly kept low through this space, and the inner container 45 is not directly cooled. As a result, even if the vegetables are stored in the inner container 45 in the sealed mud 11 and the inside of the mud 11 becomes high humidity due to the transpiration of the vegetables, no dew condensation occurs on the container wall of the inner container 45. The food stored in the vessel 45 is not spoiled. Furthermore, since the air cooled by the cooler is supplied to the outer container 48 and is not supplied directly to the inner container 45, the food can be prevented from drying.

  Further, the spreader 11 of the present embodiment is provided with a blow-out port 46g in the container wall 46b on the back side of the outer first container 46 in the outer container 48, and supplies cold air to the regenerator 60 in the second gap 48b on the back side. Then, cool air is supplied to the regenerator 60 in the upper first gap 48b. Therefore, the temperature of the cool storage material 60 in the second gap 48b is lower than the temperature of the cool storage material 60 in the first gap 48b. As a result, condensation is more likely to occur on the inner container walls 46b and 47b than on the upper container walls 46c and 47c, and the occurrence of condensation on the upper container walls 46c and 47c is suppressed. Therefore, it is possible to prevent the condensation water from dripping onto the inner container 45 from the container wall 47c positioned on the upper side of the inner container 45, and to enable long-term storage without causing deterioration of food due to the attachment of the dew condensation water.

  Furthermore, in the outer shell 48, the first gap 48a, the second gap 48b, the third gap 48d, and the fourth gap 48c in the outer container 48 are communicated with each other. Therefore, the cold air supplied through the air outlet 46g can be supplied into the outer container 48. As a result, the cool storage material 60 installed in the first gap 48a, the second gap 48b, and the third gap 48d can be cooled by cold air, and the temperature of the inner container 45 can be indirectly maintained at an appropriate temperature. it can.

  Moreover, since the communication part with the supply air path formation part 20a of the multiduct 20 is formed in fan shape as shown in FIG. 11, the cold air supplied from the multiduct 20 is made into the 1st clearance gap 48a, 2nd. This is widely applied to the cool storage material 60 installed in the gap 48b and the third gap 48d. As a result, in the spreader 11 of this embodiment, the cool storage material 60 can be sufficiently cooled in any gap.

  Depending on the position of the blowout port 46g, the flow of cool air in the hollow 11 is from the second gap 48b to the first gap 48a, from the first gap 48a to the third gap 48d, and from the second gap 48b to the third gap. The order is 48d. Therefore, it is possible not only to suppress the condensation water from dropping from the upper container wall 47c to the inner container 45, but also to prevent the condensation water from dropping from the left and right container walls 47d and 47e to the inner container 45. As a result, it is possible to more reliably prevent the food from being deteriorated due to the adherence of condensed water and to store the food for a long time.

  In the spreader 11 of the present embodiment, the cold storage material 60 is not provided in the fourth gap 48 c located on the bottom surface side of the spreader 11. As described above, the container wall 46 f on the lower side of the first container 46 in the outer container 48 is disposed at a position close to the heat insulating partition wall 8. Further, the inside of the heat insulating partition wall 8 is used as a return air passage for the air in the refrigerator compartment 3. Therefore, when the regenerator 60 is installed in the fourth gap 48, dew condensation occurs on the lower container wall 46 f of the first container 46 and the lower container wall 47 f of the second container 47 that form the fourth gap 48. It tends to occur. Therefore, in the present embodiment, the fourth gap 48c is not provided with the cold storage material 60, thereby suppressing the occurrence of condensation on the bottom side of the spreader 11.

(Experimental example)
FIG. 12 is a diagram showing a comparison of temperature changes between the spreader 11 of the present embodiment and the vegetable room of the comparative example. The vegetable room of a comparative example is a vegetable room to which the air cooled by the cooler is directly supplied like the drawer refrigerator compartment 7 in the refrigerator 1 of this embodiment. The experiment was performed in the present embodiment and the comparative example under the same conditions as follows.

<Conditions>
(1) Temperature of cold air supplied to the refrigerator compartment: -15 ° C
(2) Temperature in the refrigerator compartment: 3-4 ° C
(3) Set temperature in the vegetable room of the spread 11 of this embodiment and the comparative example: 1.5 ° C.
(4) Humidity 11 of this embodiment and set humidity in vegetable room of comparative example: 90% or more (5) Food to be stored: Komatsuna 100g

  As shown in FIG. 12, the temperature of the kitchen 11 of the present embodiment and the vegetable room of the comparative example increases immediately after the vegetables are added, but in the kitchen 11 of the present embodiment, the degree of temperature increase is a comparative example. It can be seen that it is suppressed compared to. Moreover, although the raised temperature falls to an appropriate temperature range, the time for returning to 5 ° C., which is the phase change temperature, of the spreader 11 of this embodiment is shorter than that of the vegetable room of the comparative example. The return time t1 to the phase change temperature in the spreader 11 of the present embodiment was 30 minutes in the experiment. On the other hand, the return time t2 up to 5 ° C. in the vegetable room of the comparative example was 50 minutes in the experiment.

  As described above, according to the present invention, the hollow 11 includes the inner container 45 and the outer container 48, the outer container 48 has a double structure, and the cool storage material 60 is installed in the gap between the outer containers 48 to supply cold air. I did it. As a result, the present invention keeps the inside of the inner container 45 at an appropriate temperature while preventing the dew condensation in the inner container 45 even when the mud 11 is kept at high humidity, and reduces the return time to the relative temperature. Can be shortened. Therefore, the spreader 11 of the present invention is suitable for long-term storage of food.

  As mentioned above, although the refrigerator 1 which concerns on embodiment of this invention was demonstrated, this invention is not limited to this, A various change is possible in the range which does not deviate from the summary of this invention.

  As described above, according to the present invention, it is possible to provide a refrigerator capable of preventing the occurrence of condensation and keeping the temperature in the muffler at an appropriate temperature even when the marrow is maintained at a high humidity. In the field of manufacturing refrigerators of seeds, it may be suitably used.

DESCRIPTION OF SYMBOLS 1 Refrigerator 2 Refrigerator main body 3 Refrigeration room 6 Freezing room 7 Drawer refrigeration room 11 Muro 14 Cooling room 45 Inner container 46 First container 47 Second container 48 Outer container

Claims (5)

A cooler,
A storage room;
A food storage container disposed in the storage chamber,
The storage container is
An outer container, and an inner container that is accommodated in the outer container and stores the food,
The outer container has a double structure of an outer first container and an inner second container,
The first container and the second container each have an opening in the front, and a predetermined gap is provided between the container wall of the first container and the container wall of the second container. ,
Among the gaps, a first gap provided between a container wall above the front surface of the second container and a container wall above the front surface of the first container; and A cold storage material is installed in a second gap provided between the container wall on the heel side with respect to the front surface of the second container and the container wall on the back side with respect to the front surface of the first container. ing,
A refrigerator characterized by that. A supply air passage for supplying air cooled by the cooler to the storage chamber,
A blower outlet communicating with the second gap is formed in the inner container wall of the first container.
The refrigerator according to claim 1. The predetermined gap is a third gap provided between a left and right container wall with respect to the front surface of the second container and a left and right container wall with respect to the front surface of the first container, And a fourth gap provided between the lower container wall with respect to the front surface of the second container and the lower container wall with respect to the front surface of the first container,
Each of the first gap, the second gap, the third gap, and the fourth gap is in communication with each other.
The refrigerator according to claim 2. The blower outlet has cooled air supplied from the supply air passage from the second gap to the first gap, from the first gap to the third gap, and from the second gap. Formed in a position to be supplied in the respective order of the third gap,
The refrigerator according to claim 3. A return air path for returning the air in the storage chamber to the cooler;
The return air passage is provided at a position close to a lower container wall with respect to the front surface of the first container.
The refrigerator according to any one of claims 1 to 4, wherein the refrigerator is characterized.