JP6681781B2 - Cold storage - Google Patents

Description

  The present invention relates to a cold store.

  Conventionally, as a cooling storage, one having a storage chamber and a cooler chamber, in which a cooler and a cooling fan are respectively provided in the cooler chamber, is known (Patent Document 1 below). In the cooling storage of Patent Document 1, a duct is provided so as to cover the cooler chamber, and a suction port and a blowout port are formed in the duct. A cooler is arranged between the inlet and the outlet in the vertical direction and a part of the duct is brought into contact with the cooler. As a result, when the cooling fan is driven, the air in the storage chamber is sucked into the cooler chamber from the suction port and cold air is generated while passing through the cooler, and the cool air is blown out to the storage chamber from the air outlet. The inside of the storage chamber is cooled by this.

JP, 2005-291522, A

  In the above configuration, when a gap is created between the duct and the cooler, the air sucked into the cooler chamber through the suction port may flow toward the outlet through the gap. As a result, there is a concern that the cooling efficiency may be reduced because the air sucked into the cooler chamber from the suction port goes to the storage chamber without passing through the cooler.

  The present invention has been completed based on the above circumstances, and an object thereof is to suppress a situation in which air sucked into the cooler chamber from the suction port goes to the storage chamber without passing through the cooler. To do.

  In order to solve the above problems, a cooling storage of the present invention is a storage main body having a storage chamber, a cooler chamber adjacent to the storage chamber, a cooler provided in the cooler chamber, and the cooling. A cooling fan provided in the container chamber and arranged on the storage chamber side with respect to the cooler, and a blowout port communicating the storage chamber and the cooler chamber, the storage chamber and the cooler chamber And a blow-out duct that covers the cooling fan from the side of the storage chamber and that has a suction port that communicates between the storage chamber and the cooler chamber, and a suction duct that separates the storage chamber and the cooler chamber from each other. The blow-out duct has a blow-out duct main body portion in which the blow-out port is formed, and a blow-out duct that extends from the peripheral end of the blow-out duct main body portion toward the cooler and abuts the cooler at the extended end. A side extending portion, and the suction duct A suction duct main body portion having the suction port formed therein; and a folded-back portion provided at a peripheral end of the suction duct main body portion and having a shape folded back toward the cooler side with respect to the suction duct main body portion. The folded portion abuts the blower side extension portion on the cooler side surface from the storage chamber side and cools the locked portion provided on the blower side extension portion. It is characterized in that it is locked from the container side.

  According to the above configuration, the air in the storage chamber is sucked into the cooler chamber through the suction port as the cooling fan is driven, is cooled in the process of passing through the cooler, and is then blown into the storage chamber from the outlet port. . Here, the blow-out side extension portion of the blow-out duct is in contact with the cooler, and the return portion of the suction duct is in contact with the blow-out side extension portion. As a result, it is possible to suppress the situation in which the blow-out side extension portion is displaced toward the storage chamber side, and it is possible to suppress the situation in which a gap is created between the cooler and the blow-out side extension portion. Therefore, it is possible to suppress the situation where the air sucked into the cooler chamber from the suction port goes to the blowout port without passing through the cooler through the gap. Further, since the folded-back portion is configured to be locked from the cooler side with respect to the locked portion provided in the blow-out side extended portion, the displacement toward the storage chamber side is restricted. As a result, it is possible to suppress a situation in which a gap is created between the folded-back portion and the blow-out side extended portion. Therefore, it is possible to suppress the situation where the air sucked into the cooler chamber from the suction port goes to the storage chamber through the gap without passing through the cooler.

  Further, the suction duct is arranged below the blowout duct, and the blowout side extension portion includes a first extension portion extending downward from a lower end of the blowout duct main body portion, and the first extension portion. A second extending portion that extends from the lower end and inclines toward the cooler as it goes downward, and the folded portion abuts on a surface of the first extending portion on the storage chamber side. The locked portion may be provided in the first extension portion and may have a recess into which the tip of the folded portion is fitted from above.

  With such a configuration, the folded-back portion can be locked by inserting the tip of the folded-back portion into the recess from above. Further, the suction duct can be positioned with respect to the outlet duct in the vertical direction.

  According to the present invention, it is possible to suppress a situation in which the air sucked into the cooler chamber from the suction port goes to the storage chamber without passing through the cooler.

Front view of a cooling storage according to an embodiment of the present invention The perspective view which shows a blowing duct and a suction duct in the cooling storage of FIG. FIG. 2 is a perspective view showing a state in which the outlet duct, the suction duct, and the cooling fan are removed in FIG. Sectional drawing which shows the internal structure of a cooling storage. Sectional drawing which expands and shows the lower end vicinity of the blowing duct in FIG. Perspective view showing the cooler room A perspective view showing a locking structure of a suction duct with respect to a blowing duct. Perspective view of outlet duct (view from front side) Front view of outlet duct Perspective view of suction duct (view from front side) Perspective view of suction duct (view from backside) Front view of suction duct

  An embodiment of the present invention will be described with reference to FIGS. In the present embodiment, as shown in FIG. 1, a two-door type horizontal (table) refrigerator is exemplified as the cooling storage. As shown in FIG. 1, the cooling storage 10 of the present embodiment includes a storage main body 11 which is a horizontally long box. The storage main body 11 is mainly composed of a metal plate such as a stainless steel plate, and has a storage chamber 15 and a machine chamber 20. A front surface of the storage chamber 15 is opened, and the opening can be opened and closed by a pair of heat insulating doors 16 of a double door type. In FIG. 1, the right heat insulating door 16 is omitted from the pair of left and right heat insulating doors 16.

  The machine room 20 is provided on the side (left side) of the storage room 15 and is configured by a vertically long box body. As shown in FIG. 4, the machine room 20 includes a storage space 21 in which a refrigerating device 23 including a compressor 22, a condenser (not shown) with a condenser fan, and the like is stored, a cooler 31, and a cooling fan 32. And a cooler chamber 30 in which is stored.

  The cooler chamber 30 communicates with the adjacent storage chambers 15. As shown in FIG. 4, the cooler chamber 30 and the storage chamber 15 are constituted by a heat insulating box body 24. The heat insulating box 24 is configured by filling a heat insulating material 27 such as foamed resin between an outer plate 25 made of metal (such as a stainless steel plate) and an inner plate 26. As shown in FIG. 3, a part of the interior plate constitutes a left side wall portion 15A of the storage chamber 15, and a substantially rectangular opening 17 is formed at an upper portion of the side wall portion 15A. .

  As shown in FIG. 6, a box 40 (cooler chamber box) is provided so as to cover the opening 17 from the side opposite to the storage chamber 15 (left side in FIG. 6). The box 40 mainly constitutes the upper part of the cooler chamber 30. The box 40 is made of, for example, a synthetic resin such as ABS resin, and has a box shape opened downward and on the storage chamber 15 side. The box 40 is fixed to the opening end of the opening 17 by screwing, for example.

  A cooler 31 is attached to an upper position on the inner side of the box 40 as viewed from the front (the storage chamber 15 side). A cooling fan 32 is arranged on the storage chamber 15 side with respect to the cooler 31. A drain pan 42 is arranged below the cooler 31.

  The upper portion of the opening 17 is covered with the blowing duct 70. The blowout duct 70 is made of, for example, a synthetic resin such as ABS resin, and has a horizontally long rectangular shape in a front view. As shown in FIG. 8, the air outlet duct 70 has a substantially box-shaped air outlet duct main body portion 71 that is open to the cooling fan 32 side. The blowout duct main body 71 has a horizontally long rectangular shape in a front view shown in FIG. 9, and is set to a size capable of covering substantially the entire surface of the cooling fan 32. The front plate 72 that constitutes the blow-out duct main body 71 has a lattice shape having a plurality of blow-out ports 73. The storage chamber 15 and the cooler chamber 30 are communicated with each other by the air outlet 73.

  The left and right side plates 74, 74 of the outlet duct main body 71 are formed in such a manner that they move away from the left and right edges of the front plate 72 toward the rear side. The bottom plate 75 of the outlet duct body 71 is inclined toward the cooler 31 as it goes downward (see FIG. 5). As shown in FIG. 9, a mounting plate 76 that projects outward is formed on the outer side edge of the side plate 74. An insertion hole 78 is formed in the mounting plate 76. The screw 77 (see FIG. 2) inserted through the insertion hole 78 is screwed into the screw hole 18 (see FIG. 3) formed at the opening end of the opening 17.

  As shown in FIG. 8, pressing plates 80, 80 projecting toward the cooler 31 and long in the vertical direction are formed on the back surface of the outlet duct main body 71. A blow-out side extension portion 81 is formed at the lower end of the bottom plate 75. As shown in FIG. 5, the blow-out side extending portion 81 generally extends from the lower end of the bottom plate 75 toward the cooler 31, and specifically, from the lower end of the bottom plate 75 downward. A first extending portion 83 that extends and a second extending portion 84 that extends from the lower end of the first extending portion 83 and inclines toward the cooler 31 as it goes downward are provided.

  As shown in FIG. 9, the first extension portion 83 has a long plate shape in the front-rear direction (corresponding to the left-right direction in FIG. 9) of the cooling storage 10, and the upper end portion thereof has a bottom plate 75 and left and right attachments. It is connected to the plates 76, 76. The second extended portion 84 has a plate shape that is long in the left-right direction in FIG. 9, and the length in the left-right direction is set to a value smaller than that of the first extended portion 83. Further, each of the side ends of the second extending portion 84 is connected to each of the lower ends of the pair of pressing plates 80, 80 (see FIG. 8). As shown in FIG. 5, the lower end (extended end) of the second extended portion 84 is in contact with the cooler 31 together with the end portions of the pair of pressing plates 80, 80. The end of the pressing plate 80 is in contact with the side end of the front of the cooler 31, and the lower end of the second extending portion 84 is in contact with the lower part of the front of the cooler 31.

  As shown in FIG. 2, a suction duct 50 made of a metal plate is attached to the side wall portion 15A so as to cover the lower portion of the opening 17 and reach the lower end portion of the side wall portion 15A. The blowout duct 70 and the suction duct 50 are partition plates that partition the storage chamber 15 and the cooler chamber 30, and the suction duct 50 is arranged below the blowout duct 70. In the present embodiment, the upper end of the suction duct 50 overlaps the lower end of the outlet duct 70 from the storage chamber 15 side. As shown in FIGS. 10 and 11, the suction duct 50 has a shallow box-shaped suction duct main body 55 that is open to the cooler chamber 30 side, and protrudes outward from the left and right side edges of the suction duct main body 55. A pair of mounting plates 56, 56 and a folded-back portion 57 which is provided on the upper end of the suction duct main body 55 and has a shape folded back to the suction duct main body 55 (to the cooler 31 side) (see FIG. 12). ), And are provided.

  The mounting plate 56 extends in the up-down direction along the side end of the suction duct body 55. As shown in FIG. 11, the mounting plate 56 is formed with a plurality of insertion holes 56A. The screw 59 (see FIG. 2) inserted into the insertion hole 56A is screwed into the screw hole 19 (see FIG. 3) formed in the side wall portion 15A. Further, the front plate 58 of the suction duct main body 55 has a vertically long rectangular shape and covers the opening 17 at an upper portion thereof and faces a side wall portion 15A at a lower portion thereof with a predetermined gap. It is arranged (see FIG. 6). As shown in FIG. 10, a vertically long slit-shaped suction port 52 is formed in the central portion and the lower end portion of the front plate 58 in the vertical direction. Further, a circular suction port 53 is formed on the side portion of the suction duct main body 55 over substantially the entire height. This allows the storage chamber 15 and the cooler chamber 30 to communicate with each other through the suction ports 52 and 53. In addition, a long hole-shaped or circular mounting hole 54 is formed in the side end portion of the front plate 58 over substantially the entire height. A shelf support (not shown) is screwed into the mounting hole 54.

  As shown in FIG. 12, the folded-back portion 57 has a longitudinal shape along the upper side of the suction duct main body 55 (the inclined portion 55A in the suction duct main body 55), and as shown in FIGS. The surface on the container 31 side is in contact with the surface on the storage chamber 15 side in the first extending portion 83 of the blowout duct 70. Further, a locked portion 85 protruding toward the storage chamber 15 side is formed on the surface of the first extension portion 83 on the storage chamber 15 side. The locked portion 85 has a concave portion 86 that is opened upward, and the lower end portion (tip portion) of the folded portion 57 is fitted into the concave portion 86 from above. As a result, the folded portion 57 is configured to engage with the engaged portion 85 from the cooler chamber 30 side (left side in FIG. 5) and from above. As shown in FIG. 8, the locked portions 85 are formed at both left and right ends of the first extending portion 83, respectively.

  Next, a procedure for forming the cooler chamber 30 in this embodiment will be described. In this embodiment, after the box 40 is attached to the back side of the opening 17 in the side wall portion 15A, the exterior plates 25 are arranged outside the interior plate 26 including the side wall portion 15A with a space. Subsequently, the heat insulating material 27 made of foamed resin is foam-filled between the exterior plate 25 and the interior plate 26 to form the heat insulating box body 24 constituting the cooler chamber 30 and the storage chamber 15. Next, the cooler 31 and the cooling fan 32 are mounted in the box 40. Then, the blowing duct 70 is fixed to the side wall portion 15A so as to cover the cooling fan 32. At this time, the lower end of the second extending portion 84 of the blowout duct 70 and the end portions of the pair of pressing plates 80, 80 are in contact with the cooler 31.

  Subsequently, the folded-back portion 57 of the suction duct 50 is locked to the locked portion 85 of the first extended portion 83 so that the suction duct 50 is positioned (temporarily fixed), and the suction duct is attached to the side wall portion 15A. Screw 50 on. As a result, the folded portion 57 is pressed against the first extending portion 83 of the blowout duct 70, and as a result, the lower ends of the second extending portion 84 and the end portions of the pair of pressing plates 80, 80 are pressed against the cooler 31. To be Thereby, the cooler chamber 30 is formed.

  In the present embodiment, the cooling operation is performed by driving the compressor 22 and the cooling fan 32 of the refrigeration system. When the cooling fan 32 is driven, the air in the storage chamber 15 is sucked into the cooler chamber 30 from the suction ports 52 and 53 of the suction duct 50 and heads for the cooler 31 (see arrow P3 in FIG. 6). After being circulated through 31 to be converted into cool air, it is blown out from the outlet 73 of the outlet duct 70 to the ceiling surface side of the storage chamber 15 (see arrow P4 in FIG. 6). By circulating and supplying such cold air, the inside of the storage chamber 15 is cooled.

  Next, the effects of this embodiment will be described. According to this embodiment, the blow-out side extension portion 81 of the blow-out duct 70 contacts the cooler 31, and the turn-back portion 57 of the suction duct 50 contacts the blow-out side extension portion 81. . As a result, it is possible to suppress the situation in which the blow-out side extension portion 81 is displaced toward the storage chamber 15 side, and to suppress the situation in which a gap is created between the cooler 31 and the blow-out side extension portion 81.

  Therefore, a situation in which the air sucked into the cooler chamber 30 from the suction ports 52 and 53 is directed toward the blowout port 73 through the gap (in other words, such an air flow is indicated by the arrow P1 in FIG. 5), in other words, It is possible to suppress the situation of going to the outlet 73 without passing through the cooler 31. Further, since the folded-back portion 57 is configured to be locked to the locked portion 85 provided on the blow-out side extended portion 81 (first extended portion 83), the displacement toward the storage chamber 15 side is restricted. Therefore, it is possible to suppress a situation in which a gap is formed between the blowout side extension portion 81. Therefore, a situation in which the air sucked into the cooler chamber 30 from the suction ports 52 and 53 goes to the storage chamber 15 through the gap without passing through the cooler 31 (such a flow of air is indicated by an arrow in FIG. 5). (Indicated by P2) can be suppressed.

  Further, the suction duct 50 is arranged below the blowout duct 70, and the blowout side extension portion 81 has a first extension portion 83 extending downward from a lower end of the blowout duct main body portion 71 and a first extension portion 83. A second extending portion 84 that extends from the lower end of the first extending portion 83 and inclines toward the cooler 31 as it goes downward. The locked portion 85 is provided in the first extending portion 83 and has a recess 86 into which the lower end of the folded portion 57 is fitted from above. With such a configuration, the folded-back portion 57 can be locked by inserting the lower end portion of the folded-back portion 57 into the recess 86 from above. Further, since the suction duct 50 can be positioned with respect to the outlet duct 70 in the vertical direction, the workability in screwing the suction duct 50 to the side wall portion 15A becomes good.

  In the configuration in which the upper side of the suction duct 50 is overlapped with the lower side of the blowout duct 70 as in the present embodiment, it is difficult to fix the central portion of the upper side of the suction duct 50 to the side wall portion 15A, and the central portion easily warps. . In the present embodiment, since the folded-back portion 57 that constitutes the upper side of the suction duct 50 is locked to the locked portion 85, it is possible to prevent the central portion of the upper side of the suction duct 50 from warping. it can.

<Other Embodiments>
The present invention is not limited to the embodiments described above with reference to the drawings, and the following embodiments are also included in the technical scope of the present invention.
(1) In the above embodiment, the cooler chamber 30 is arranged laterally of the storage chamber 15, but the present invention is not limited to this. For example, the cooler room may be provided at the back of the storage room 15. Further, the cooler chamber and the storage chamber may be arranged vertically. In such a configuration, the blowing duct and the suction duct, for example, may be arranged in a form adjacent to each other in the horizontal direction, and the folded portion of the suction duct is provided at the circumferential end of the suction duct main body on the blowing duct side, The blow-out side extending portion of the blow-out duct may be provided at the peripheral end of the blow-out duct main body on the suction duct side.
(2) The present invention is not limited to the refrigerator illustrated in the above-mentioned embodiment, but can be widely applied to all other cooling storages such as a freezer and a constant temperature / high humidity chamber.
(3) In the above embodiment, the configuration in which the blow-out duct main body 71 and the suction duct main body 55 each have a shallow box shape is illustrated, but the present invention is not limited to this. The blow-out duct main body 71 and the suction duct main body 55 may have a flat plate shape, for example.
(4) The shapes of the suction port and the air outlet are not limited to those exemplified in the above embodiment, and can be changed as appropriate.

10 ... Cooling storage, 11 ... Storage main body, 15 ... Storage room, 30 ... Cooler room, 31 ... Cooler, 32 ... Cooling fan, 50 ... Suction duct, 52 ... Suction port, 55 ... Suction duct main body section, 57 ... Fold-back portion, 70 ... Air outlet duct, 71 ... Air outlet duct main body portion, 73 ... Air outlet, 81 ... Air outlet side extended portion, 83 ... First extended portion, 84 ... Second extended portion, 85 ... Locked portion , 86 ... Recess

Claims (2)

A storage main body having a storage chamber and a cooler chamber adjacent to the storage chamber,
A cooler provided in the cooler chamber,
A cooling fan provided in the cooler chamber and arranged on the storage chamber side with respect to the cooler,
A blowout duct that has a blowout port that communicates the storage chamber and the cooler chamber, and partitions the storage chamber and the cooler chamber and covers the cooling fan from the storage chamber side,
A suction duct that has a suction port that communicates between the storage chamber and the cooler chamber, is provided below the blowout duct , and includes a suction duct that partitions the storage chamber and the cooler chamber,
The outlet duct is
An outlet duct main body portion in which the outlet is formed,
The outlet duct body portion lower end provided integrally with the discharge duct main body so as to extend to said cooler from the outlet side extending portion is the extension end in contact with the cooler,
A locked portion provided on the blow-out side extending portion, to which the suction duct is locked ,
The suction duct is
A suction duct main body portion in which the suction port is formed,
A folded-back portion provided at the upper end of the suction duct main body and having a shape folded back from the upper end ,
The folded portion, abuts against the said storage compartment side with respect to the outlet side extending portion in the plane of the cooler side, and engaging from the cooler side with respect to the locked portion,
The said cold storage part is a cooling storage which is the structure contact | abutted with the surface by the side of the said storage chamber in the said blowing side extension part . The blow-out side extended portion,
A first extending portion extending downward from the lower end of the outlet duct main body portion;
A second extending portion that extends from a lower end of the first extending portion and inclines toward the cooler as it extends downward,
The folded-back portion has a longitudinal shape extending along the upper end and is in contact with a surface of the first extending portion on the storage chamber side,
The locked portions are provided at both end portions in a direction intersecting the vertical direction in which the first extending portion extends ,
Each of the locked portions has a concave portion opened upward,
The cooling storage according to claim 1 , wherein a lower end portion of the longitudinally folded portion is fitted into each of the recesses from above .

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