JP2019113242A - refrigerator - Google Patents

Abstract

To provide a refrigerator which can discharge moisture in a chilled room to the outside easily.SOLUTION: A refrigerator 10 of the invention includes a cold room 15 and a chilled room 40 installed inside the cold room 15. The chilled room 40 has an upper surface part 37, a lower surface part 38, and multiple side surface parts 39 connecting the upper surface part 37 with the lower surface part 38. Further, cooling air for cooling the cold room 15 is blown onto the side surface parts 39 of the chilled room 40 from the outside of the chilled room 40. The structure enables moisture contained in an internal atmosphere in the chilled room 40 to be effectively condensed on an inner surface of the side surface parts 39 of the chilled room 40 and discharged to the outside.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a refrigerator for cooling and storing food or the like in a storage chamber, and more particularly to a refrigerator provided with a low pressure closed chamber.

  A common refrigerator has a plurality of storage rooms, for example, from above, a refrigerator, a freezer and a vegetable compartment.

  There is also a refrigerator that has a chilled room inside the cold room. Such a refrigerator is described, for example, in Patent Document 1.

  In such a refrigerator, a chilled chamber is formed at the bottom of the refrigerator formed at the top. An open / close door is formed at the tip of the chilled chamber. A pump is connected to the chilled chamber, and the pressure in the chilled chamber is reduced by drawing the air inside the chilled chamber with the pump. In this way, oxidation of stored food such as fish and meat stored in the chilled chamber can be suppressed, and the stored food can be kept fresh.

JP, 2016-133251, A

  However, in the chilled chamber provided in the above-described refrigerator, when the low pressure state of the chilled chamber is achieved by the suction force of the pump, water vapor transpirations from the stored vegetables fill up the interior of the chilled chamber, and the inside of the chilled chamber Condensation occurs on the If the condensation adheres to food, it may adversely affect freshness. In addition, it is conceivable to suction the dew condensation with a vacuum pump and discharge it to the outside, but it was not easy to discharge the dew condensation to the outside efficiently.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a refrigerator capable of easily discharging the water in the low-pressure sealed chamber to the outside.

  The refrigerator according to the present invention comprises a storage room and a low pressure closed room installed inside the storage room, and the low pressure closed room comprises an upper surface, a lower surface, the upper surface, and the lower surface. A plurality of side portions connecting the plurality of side walls, and cold air for cooling the storage chamber is sprayed from the outside of the low pressure closed chamber toward the side portions of the low pressure closed chamber.

  In the refrigerator according to the present invention, a hydrophilic paint is applied to the inner surface of the side portion to which the cold air is blown.

  Further, in the refrigerator according to the present invention, the side surface portion of the low pressure closed chamber has a front side surface portion, a rear side surface portion, a left side surface portion and a right side surface portion, and the rear side surface portion The cold air is blown from the outside of the low pressure closed chamber, and an outlet from which the cold air to be blown is blown out is formed on the rear side of the low pressure closed chamber.

  Moreover, in the refrigerator according to the present invention, a groove portion which is inclined along the width direction is formed on the rear end side of the low pressure sealed chamber.

  Further, in the refrigerator according to the present invention, the groove portion has a first groove portion inclined downward toward one side in the width direction, and a second groove portion inclined downward toward the other side in the width direction. A pump for suctioning air in the low-pressure sealed chamber is connected to a portion where the first groove and the second groove merge.

  Further, in the refrigerator according to the present invention, a plurality of ribs extending outward are formed on the rear side surface portion of the low pressure sealed chamber, and toward the low pressure sealed chamber behind the low pressure sealed chamber. A plurality of the outlets through which the cold air to be blown passes are disposed.

  The refrigerator according to the present invention comprises a storage room and a low pressure closed room installed inside the storage room, and the low pressure closed room comprises an upper surface, a lower surface, the upper surface, and the lower surface. A plurality of side portions connecting the plurality of side walls, and cold air for cooling the storage chamber is sprayed from the outside of the low pressure closed chamber toward the side portions of the low pressure closed chamber. Therefore, by blowing cold air on the side surface of the low pressure sealed chamber, the side surface of the low pressure sealed chamber can be cooled, and the water contained in the internal atmosphere of the low pressure sealed chamber is collected as water droplets inside the side portion of the low pressure sealed chamber. be able to. Therefore, the water generated in the low pressure closed chamber can be effectively discharged to the outside.

  In the refrigerator according to the present invention, a hydrophilic paint is applied to the inner surface of the side portion to which the cold air is blown. Therefore, by applying the hydrophilic paint to the inner surface of the side surface portion of the low pressure sealed chamber, the water contained in the internal atmosphere of the low pressure sealed chamber can be more positively collected as water droplets on the inner surface of the side surface portion . Therefore, water droplets generated inside the low pressure closed chamber can be discharged to the outside more efficiently.

  Further, in the refrigerator according to the present invention, the side surface portion of the low pressure closed chamber has a front side surface portion, a rear side surface portion, a left side surface portion and a right side surface portion, and the rear side surface portion The cold air is blown from the outside of the low pressure closed chamber, and an outlet from which the cold air to be blown is blown out is formed on the rear side of the low pressure closed chamber. Therefore, by blowing cold air blown out from the outlet onto the rear side of the low pressure closed chamber, the cold side can be cooled with sufficiently low temperature, and the water droplets can be collected effectively. The effect can be made remarkable.

  Moreover, in the refrigerator according to the present invention, a groove portion which is inclined along the width direction is formed on the rear end side of the low pressure sealed chamber. Accordingly, the water moved downward along the rear inner surface of the low pressure sealed chamber can be moved along the inclined groove.

  Further, in the refrigerator according to the present invention, the groove portion has a first groove portion inclined downward toward one side in the width direction, and a second groove portion inclined downward toward the other side in the width direction. A pump for suctioning air in the low-pressure sealed chamber is connected to a portion where the first groove and the second groove merge. Therefore, the water flowing along the first groove and the second groove can be efficiently discharged by the pump.

  Further, in the refrigerator according to the present invention, a plurality of ribs extending outward are formed on the rear side surface portion of the low pressure sealed chamber, and toward the low pressure sealed chamber behind the low pressure sealed chamber. A plurality of the outlets through which the cold air to be blown passes are disposed. Therefore, it becomes difficult to flow cool air along the back side part of a low pressure sealed room by forming a plurality of ribs which extend outward in the back side part of a low pressure sealed room. However, by arranging a plurality of outlets behind the low pressure closed chamber, it is possible to effectively cool the rear side portion of the low pressure closed chamber.

It is a front view showing the appearance of the refrigerator concerning the embodiment of the present invention. It is a side sectional view showing the internal configuration of the refrigerator concerning the embodiment of the present invention. It is a perspective view showing the low pressure closed chamber adopted by the refrigerator concerning the embodiment of the present invention. It is an exploded perspective view showing the low pressure closed chamber adopted by the refrigerator concerning the embodiment of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS It is a figure which shows the low pressure closed chamber employ | adopted by the refrigerator which concerns on embodiment of this invention, (A) is the figure which looked at the inside of the low pressure closed chamber from the front, (B) is an incision perspective which shows a low pressure closed chamber. FIG. BRIEF DESCRIPTION OF THE DRAWINGS It is a figure which shows the refrigerator which concerns on embodiment of this invention, (A) is a cutaway perspective view which shows the path | route of the water discharged | emitted from a low pressure closed chamber, (B) is the expanded incision perspective which shows the important point. FIG. It is a figure showing the refrigerator concerning the embodiment of the present invention, and is a front view showing the cold storage room supply air course.

  Hereinafter, the refrigerator 10 which concerns on embodiment of this invention is demonstrated in detail based on drawing. In the following description, the same reference numeral is attached to the same member in principle, and the repeated description is omitted. Furthermore, in the following description, although each direction of upper and lower, front and rear, right and left is used suitably, right and left mean right and left when the refrigerator 10 is seen from the front.

  FIG. 1: is a front external view which shows schematic structure of the refrigerator 10 of this form. As shown in FIG. 1, the refrigerator 10 includes a heat insulation box 11 as a main body, and a storage room for storing food or the like is formed inside the heat insulation box 11. As the storage room, the uppermost stage is the refrigerating room 15, the lower left side is the ice making room 16, the right side is the upper freezing room 18, and the lower stage is the lower freezing room 19. The ice making chamber 16, the upper stage freezing room 18 and the lower stage freezing room 19 are all storage rooms of the freezing temperature range, and in the following description, they may be collectively referred to as the freezing room 17.

  The front surface of the heat insulation box 11 is open, and the heat insulation door 21 etc. is provided in the opening corresponding to each said storage room, respectively so that opening and closing is possible. The heat insulation door 21 divides the front of the refrigerator compartment 15 in the left-right direction and closes it, and the outer upper and lower ends in the width direction of the heat insulation door 21 are rotatably attached to the heat insulation box 11. Moreover, the heat insulation doors 22, 23, 24 are integrally combined with the storage container, respectively, and supported by the heat insulation box 11 so as to be able to be pulled out to the front of the refrigerator 10.

  FIG. 2 is a side sectional view showing a schematic structure of the refrigerator 10. As shown in FIG. 2, the heat insulation box 11 which is the main body of the refrigerator 10 is disposed with a steel plate outer box 12 whose front face is open and a space in the outer box 12 and the front face is open. It is comprised from the inner box 13 made of a synthetic resin. In the gap between the outer case 12 and the inner case 13, a heat insulating material 14 made of foamed polyurethane is filled and foamed. In addition, the heat insulation structure similar to the heat insulation box 11 is employ | adopted also for each above-mentioned heat insulation door 21 grade | etc.,.

  The refrigerator compartment 15 and the freezer compartment 17 located in the lower stage are partitioned by the heat insulation partition wall 27.

  On the back surface of the refrigerator compartment 15, a refrigerator compartment air supply passage 30 is formed, through which cold air blown into the refrigerator compartment flows. Moreover, the blower outlet 34 for blowing out cold air from the refrigerator compartment supply air path 30 to the refrigerator compartment 15 is formed. The specific shape of the cold storage air supply passage 30 will be described later. Further, although not shown here, a cold storage room return air path is also formed for the cold air that has cooled the cold storage room 15 to return to the cooling room 32.

  On the back side of the freezing chamber 17, a cooling chamber 32 in which a cooler 31 which is an evaporator is accommodated is formed. The cooler 31 is connected to a compressor (not shown), a radiator (not shown), and a capillary tube which is expansion means (not shown) via a refrigerant pipe, and constitutes a vapor compression type refrigeration cycle circuit.

  Above the cooling chamber 32, the blower 33 which ventilates the cold air which the cooler 31 cooled inside the cooling chamber 32 is arrange | positioned. Further, although not shown here, dampers may be provided for appropriately opening and closing each air supply passage.

  Although not shown here, a freezer compartment supply air path for blowing the cold air cooled in the chiller room 32 to the freezer compartment 17 is formed. Furthermore, a return air path is also formed for the cold air that has cooled the freezing chamber 17 to return to the cooling chamber 32. Here, the return port 35 for the cold air which cooled the freezer compartment 17 to return to the cooling chamber 32 is illustrated.

  A chilled chamber 40, which is a low pressure closed chamber, is disposed below the refrigerating chamber 15. The chilled chamber 40 is a small storage chamber for storing fresh food and the like such as meat and vegetables, and the indoor temperature range is, for example, 0 ° C. or more and 1 ° C. or less. Furthermore, the internal pressure of the sealed chilled chamber 40 is a low pressure in order to maintain the freshness of stored fresh food and the like well. The room pressure of the chilled chamber 40 is, for example, about 0.5 atm. The specific configuration of the chilled chamber 40 will be described later.

  At the rear of the chilled chamber 40, an outlet 34 for blowing cold air toward the inside of the refrigerating chamber 15 is disposed. The outlet 34 is disposed at a position below the upper surface of the chilled chamber 40 and above the lower surface of the chilled chamber 40.

  By disposing the air outlet 34 at the rear of the chilled chamber 40, the chilled chamber 40 can be effectively cooled. Furthermore, water can be effectively collected inside the chilled chamber 40. Specifically, when a fresh food such as meat having a high water content is stored in the chilled chamber 40, condensation water is generated by condensation of the water evaporated from the fresh food in the chilled chamber 40. In the present embodiment, the temperature of the rear surface of the chilled chamber 40 is lowered by blowing the cold air blown out from the air outlet 34 directly on the rear surface of the chilled chamber 40. In this way, condensed water can be condensed inside the rear surface of the chilled chamber 40, and the condensed water can be prevented from adhering to fresh food. Such matters will be described later.

  Further, at the opening of the blowout port 34, a blowout cover 36 made of synthetic resin is installed. The blowout cover 36 is a substantially cylindrical member whose opening area decreases in the forward direction. In this way, the cold air blown out from the blowout port 34 can be strongly blown to the rear side surface of the chilled chamber 40 via the blowout cover 36. Therefore, the rear side surface of the chilled chamber 40 can be cooled more effectively.

  The configuration of the chilled chamber 40 will be described in detail with reference to FIG. This figure is a perspective view showing the chilled chamber 40.

  The chilled chamber 40 is a closed container having a substantially box-like shape, and has an upper surface 37, a lower surface 38, and a side surface 39 connecting the upper surface 37 and the lower surface 38. The side surface 39 has a front side surface 39A, a rear side surface 39B, a left side surface 39C, and a right side surface 39D.

  Further, the chilled chamber 40 is composed of a chilled case 57 which is a substantially box-like body having a front opening at the front, and a substantially plate-shaped panel 43 which closes the front opening of the chilled case 57. A handle 46 is attached to the front center of the panel 43. The handle 46 is rotatably mounted within a predetermined angular range with its upper end as the center of rotation. The chilled case 57 and the panel 43 are made of injection-molded synthetic resin or the like. Further, on the outer surface of the chilled case 57, a large number of ribs 47 are formed in a lattice shape. By so doing, the chilled case 57 is reinforced, and it is possible to prevent the chilled case 57 from being deformed inward when the pressure in the chilled chamber 40 is reduced to a low pressure under usage conditions.

  The chilled chamber 40 operates as follows. First, when the user rotates the handle 46 from the lower side to the front by holding the hand, a gap is generated between the panel 43 and the chilled case 57, and the inside of the chilled chamber 40 is in the atmospheric pressure state. Next, when the user pulls the panel 43 forward, the storage container 44 described later together with the panel 43 is pulled forward. Then, after storing the fresh food etc. which should be kept refrigerated in the storage container 44, the user causes the storage container 44 to be incorporated in the chilled case 57 by pushing the panel 43 backward. Furthermore, when the user pushes the handle 46 rearward, the gap between the panel 43 and the chilled case 57 is sealed, and the pump 51 described later exhausts the air inside the chilled chamber 40 to the outside, and the chilled chamber 40 is The inside is, for example, a low pressure state of about 0.5 atm. When the inside of the chilled chamber 40 is in a predetermined low pressure state, a pump 51 described later is stopped.

  FIG. 4 is an exploded perspective view showing the members constituting the above-described chilled chamber 40 separately in the vertical direction.

  The chilled chamber 40 closes a chilled case main body 41 having an opening at the front and upper portions, a chilled case lid 42 having a lid shape for closing the upper opening of the chilled case main body 41, and a front opening of the chilled case main body 41 And a panel 43. Further, on the outer peripheral surfaces of the chilled case main body portion 41 and the chilled case lid portion 42, a large number of ribs 47 are formed in a lattice shape in order to increase mechanical strength. Further, the lower surface of the chilled case main body portion 41 is formed with a concavo-convex shape for reinforcing the lower surface.

  The front opening 45 formed at the front end of the chilled case main body 41 is covered by the panel 43 from the front. On the rear surface of the panel 43, a storage container 44 in which fresh food and the like are placed is disposed. When the user moves the panel 43 in the front-rear direction, the storage container 44 moves with the panel 43 in the front-rear direction.

  When the handle 46 is not pulled out to the front, the panel 43 seals the front opening 45 of the chilled case main body 41 by a lock mechanism (not shown). On the other hand, when the user pulls the lower end of the handle 46 forward and the handle 46 rotates, the lock of the panel 43 by the lock mechanism is released. Thus, the panel 43 does not seal the front opening 45 of the chilled case body 41.

  The configuration of the chilled chamber 40 will be further described in detail with reference to FIG. FIG. 5A is a front view of the inside of the chilled chamber 40, and FIG. 5B is a cutaway perspective view of the chilled chamber 40. Here, the area to which the hydrophilic paint 56 is applied is indicated by hatching.

  Referring to FIG. 5A, a hydrophilic paint 56 is applied to the inner surface side of the rear side surface portion 39B of the chilled chamber 40. Here, the hydrophilic paint 56 is applied to substantially the entire inner surface of the rear side surface portion 39B. Here, the hydrophilic paint 56 is a paint composed of a polymer having a hydrophilic group and a solvent. By applying the hydrophilic paint 56 to the inner surface side of the rear side surface portion 39B, the water contained in the internal atmosphere of the chilled chamber 40 is easily attached to the surface of the hydrophilic paint 56, and water droplets are formed on the inner surface of the rear side surface portion 39B. It becomes easy to be formed.

  In the present embodiment, as described above, the temperature of the rear side portion 39B is made lower than that of the other portions of the chilled chamber 40 by blowing cold air from the outside to the rear side portion 39B of the chilled chamber 40. . By doing so, a situation in which water droplets are likely to be formed on the inner surface of the rear side surface portion 39B is created. Furthermore, in the present invention, by applying the hydrophilic paint 56 to the inner surface of the rear side surface portion 39B, a water droplet is more positively formed on the inner surface of the rear side surface portion 39B. By doing this, it is possible to prevent the water droplets from adhering to the fresh food and the like stored in the chilled chamber 40.

  With further reference to FIG. 5A, a groove 49 is formed below the rear side surface 39B. The groove portion 49 is a portion where the rear end of the lower surface portion 38 of the chilled chamber 40 is recessed downward. The width of the groove 49 is formed wider than the width of the hydrophilic paint 56 in the left-right direction. The left end of the groove 49 is disposed to the left of the left end of the hydrophilic paint 56, and the right end of the groove 49 is disposed to the right of the right end of the hydrophilic paint 56. Therefore, the water droplets formed by the adhesion of the moisture to the hydrophilic paint 56 move along the inner side surface of the rear side surface 39B to the groove 49, and are guided to the evaporation dish as described later.

  The groove 49 is composed of a first groove 49A on the left side and a second groove 49B on the right side. The first groove 49A is an inclined groove that inclines downward to the right, and the second groove 49B is an inclined groove that inclines downward to the left. The first groove 49A and the second groove 49B have substantially the same length, and are connected at the center of the groove 49 in the left-right direction.

  A drainage hole 50 for escaping the collected water to the outside of the chilled chamber 40 is formed at a portion where the first groove 49A and the second groove 49B are connected. As described above, the first groove 49A and the second groove 49B are inclined grooves inclined downward toward the center. Therefore, the water dropped to the first groove 49A and the second groove 49B by the action of gravity flows through the first groove 49A and the second groove 49B to reach the drainage hole 50 and is then discharged to the outside of the chilled chamber 40. .

  As shown in FIG. 5B, a drainage hole 50 for discharging the water collected in the groove 49 to the outside is formed at the center of the groove 49. The drainage hole 50 is formed at the lowermost part of the groove 49 toward the rear. Further, a filter 58 made of, for example, a foamed resin is disposed in front of the drainage hole 50 inside the groove 49. In other words, the filter 58 blocks the drainage hole 50. By doing this, the dust existing inside the chilled chamber 40 can be captured by the filter 58, and the drainage holes 50 can be prevented from being clogged with dust.

  With reference to FIG. 6, the path along which the water generated from the chilled chamber 40 travels will be described. FIG. 6 (A) is a cut-away perspective view showing the path of water drained from the chilled chamber 40, and FIG. 6 (B) is a cut-away perspective view showing the main part in an enlarged manner.

  Referring to FIG. 6A, behind the chilled chamber 40, a pump 51 for suctioning the internal atmosphere of the chilled chamber 40 is disposed. The chilled chamber 40 and the pump 51 are connected by a suction pipe 53. The pump 51 is housed in a pump housing container 52. Further, a drain pipe 54 extends downward from the pump storage container 52. The drainage pipe 54 is disposed inside the heat insulating material 14 filled in the inside of the above-described heat insulating partition wall 27. By passing the drainage pipe 54 through the inside of the heat insulating material 14, the drainage pipe 54 is thermally separated from the freezing chamber 17, and it is possible to prevent the water flowing through the drainage pipe 54 from freezing. Furthermore, the drainage pipe 54 is also disposed inside the heat insulating material 14 disposed behind the freezing chamber 17. The lower end of the drain pipe 54 is disposed in a defrosting chamber plate 55 which temporarily receives defrosting water.

  Therefore, the water generated from the chilled chamber 40 flows to the defrosting chamber tray 55 via the suction pipe 53, the pump storage container 52, and the drainage pipe 54. The water that has flowed to the defrosting chamber plate 55, together with the defrosting water, reaches the evaporating plate not shown here. Since the evaporating dish is thermally coupled to a heat source such as a compressor or a refrigerant pipe (not shown), water transferred to the evaporating dish is evaporated by this heat.

  Referring to FIG. 6B, the left side end of the suction pipe 53 on the paper surface is connected to the drainage hole 50 of the chilled chamber 40. On the other hand, the right side end of the suction pipe 53 on the paper surface is connected to the suction port of the pump 51 built in the pump storage container 52. Here, the pump 51 is incorporated in a pump storage container 52 made of a synthetic resin formed substantially in a box shape. By doing this, it is possible to absorb the noise generated by the operation of the pump 51 by the pump storage container 52 and to suppress the leakage of the operation sound of the pump to the outside of the refrigerator 10. The pump 51 suctions the water collected in the groove 49 together with the internal air of the chilled chamber 40. Also, the water sucked by the pump 51 is transferred downward via the drain pipe 54 as described above.

  FIG. 7 is a front view of the cold storage air supply passage 30. Here, the cold storage room supply air path 30 is hatched.

  The cold room supply air path 30 is an air path through which cold air supplied from the cooling room 32 to the cold room 15 flows. Specifically, the cold storage air supply passage 30 is formed upward from the center in the left-right direction, branched from the upper end to the left and right, and further extended downward from the end in the left-right direction. At a plurality of locations on the way of the cold storage room air supply path 30, blowout openings 34 for blowing cold air into the cold storage room 15 are formed.

  In this figure, the area where the chilled chamber 40 is arranged is indicated by a dotted line. Two air outlets 34 are disposed behind the chilled chamber 40. By thus arranging the plurality of outlets 34 at the rear of the chilled chamber 40, the above-described rear side portion 39B of the chilled chamber 40 can be efficiently cooled. Therefore, the water contained in the internal atmosphere of the chilled chamber 40 can be more effectively aggregated on the rear side surface portion 39B and removed.

  Moreover, as shown in FIG. 4 etc., the some rib 47 is formed in the back side part 39B of the chilled chamber 40. As shown in FIG. Therefore, it is not easy to flow cold air along the rear side 39 B of the chilled chamber 40. However, by disposing the plurality of outlets 34 at the rear of the chilled chamber 40, the rear side portion 39B of the chilled chamber 40 can be cooled effectively.

  The present invention is not limited to the above embodiment, and various modifications can be made without departing from the scope of the present invention.

DESCRIPTION OF SYMBOLS 10 refrigerator 11 heat insulation box 12 outer box 13 inner box 14 heat insulation 15 cold storage room 16 ice making room 17 freezing room 18 upper freezing room 19 lower freezing room 21 heat insulation door 22 heat insulation door 23 heat insulation door 24 heat insulation door 27 heat insulation partition wall 30 refrigeration Room supply air path 31 Cooler 32 Cooling room 33 Blower 34 Air outlet 35 Return port 36 Top cover 38 Upper surface 38 Lower surface 39 Side surface 39A Front side surface 39B Rear side surface 39C Left side surface 39D Right side surface 40 chilled Chamber 41 chilled case main body 42 chilled case lid 43 panel 44 storage container 45 front opening 46 handle 47 rib 49 groove 49A first groove 49A second groove 50 drain hole 51 pump 52 pump storage container 53 suction pipe 54 drain pipe 55 removed Frost chamber dish 56 hydrophilic paint 57 chilled case 58 filter

Claims (6)

A storage room,
A low pressure closed chamber installed inside the storage chamber,
The low pressure closed chamber has an upper surface, a lower surface, and a plurality of side surfaces connecting the upper surface and the lower surface.
The refrigerator characterized by spraying cold air which cools the storage room from the outside of the low pressure closed chamber toward the side portion of the low pressure closed chamber.   The refrigerator according to claim 1, wherein a hydrophilic paint is applied to an inner surface of the side portion to which the cold air is blown. The side surface portion of the low pressure sealed chamber has a front side surface portion, a rear side surface portion, a left side surface portion, and a right side surface portion.
The cold air is blown to the rear side portion from the outside of the low pressure closed chamber,
The refrigerator according to claim 1 or 2, wherein an outlet from which the cold air to be sprayed is blown out is formed on the rear side of the low pressure closed chamber.   The refrigerator according to any one of claims 1 to 3, wherein a groove which inclines in the width direction is formed on the rear end side of the low pressure closed chamber. The groove has a first groove inclined downward toward one side in the width direction, and a second groove inclined downward toward the other side in the width direction.
The refrigerator according to claim 4, wherein a pump for sucking air in the low pressure closed chamber is connected to a portion where the first groove portion and the second groove portion merge. The rear side surface portion of the low pressure sealed chamber is formed with a plurality of ribs extending outward.
6. The blower outlet according to any one of claims 1 to 5, wherein a plurality of the outlets through which the cold air blown out toward the low pressure closed chamber passes are disposed behind the low pressure closed chamber. refrigerator.

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