JP3875124B2 - Duct structure of cooling storage - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a duct structure of a cooling storage (refrigerator, freezer, etc.).
[0002]
[Prior art]
Conventionally, as shown in FIG. 5, the duct 21 arranged in the interior R is assembled to the top panel (storage wall) 22 with screws 23 as one of the cooling storages, so that the duct 21 and the ceiling There is one in which a cold air passage P is formed between the face panels 22. Note that a cooling storage in which a cool air passage is formed between a duct and a storage wall by assembling a resin duct in the storage of the cooling storage is disclosed in, for example, Japanese Patent No. 2563445.
[0003]
[Problems to be solved by the invention]
In the above-described conventional cooling storage (the cooling storage illustrated in FIG. 5), the adopted duct 21 is a resin molded product or a sheet metal processed product, and has a three-dimensional shape even in a free state. For this reason, a large packing case is required for transporting the duct 21, and transportability is poor. In addition, conveyance of the duct 21 is requested | required, for example in the thing (for example, prefabricated cooling storage) where the said cooling storage is large and is assembled in a conveyance destination. In addition, ducts molded with resin can be made cheaper in the case of mass production, although the cost of the mold can be reduced despite the cost of the mold. It is difficult to reduce the unit price.
[0004]
[Means for Solving the Problems]
In order to cope with the above-described problems, the present invention provides a cooling storage room having a duct that forms a cold air passage with a wall provided with an opening for cooling for assembling a refrigeration unit . The duct is made of a flexible and bendable resin sheet, and has a trapezoidal shape portion and a rectangular portion extending from the center of the upper base of the trapezoidal shape portion and having a long side extending along the upper base. The rectangular portion is bent and bent by hand bending in the cooling opening, and is fixed to the base of the refrigeration unit by a screw passing through a mounting hole provided in the extended end, The trapezoidal shape part is curved so that the central part of the lower bottom is bent and deformed by hand bending inside the warehouse wall, and both ends of the upper bottom part are screwed through the mounting holes provided at both ends of the lower bottom part. before the a screw through the mounting hole provided in Be fixed to Kurakabe, (invention according to claim 1) wherein the chamber wall and the the cool air passage is formed between the duct is characterized. Preferably, the duct is formed by punching a flat resin sheet into a predetermined shape having the trapezoidal shape portion and the rectangular shape portion (invention according to claim 2).
[0005]
[Operation and effect of the invention]
In the duct structure of the cooling storage according to the present invention (the invention according to claim 1), since the material of the duct is made of a flexible and bendable resin sheet, the duct is handled as a flat plate until it is assembled to the warehouse wall. It is possible. For this reason, it is possible to pack a duct compactly and pack it in a small packing case, and to improve transportability. In addition, when the duct is formed by punching a flat resin sheet into a predetermined shape (in the case of the invention according to claim 2), the duct mold cost can be reduced, and the duct can be reduced. The unit price can be reduced even in mass production.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to the drawings. 1 to 4 show a cooling storage 10 adopting a duct structure according to the present invention. The cooling storage 10 includes a floor panel (not shown), a back panel 11a, a left side panel 11b, a right side panel 11c, and A cooling storage body 11 having a heat insulating structure formed by assembling the top panel 11d and having an opening in the front, and a cooling storage door 12 having a heat insulating structure assembled to the cooling storage body 11 via each hinge 13 so as to be opened and closed. And a refrigeration unit 14 assembled on the top panel 11d and a duct 15 disposed in the cabinet.
[0007]
The refrigeration unit 14 includes a base 14a that is assembled to the top panel 11d using screws 16, a compressor 14b, a condenser 14c, a condenser cooling fan motor 14d, an expansion valve 14e, and a cooler that are assembled in advance to the base 14a. 14f, a pair of cold air circulation fan motors 14g, a cover 14h, and the like. The cover 14h that houses the cooler 14f and the pair of cool air circulation fan motors 14g is partially omitted in FIG.
[0008]
The refrigeration unit 14 is assembled such that the cooler 14f and the cool air circulation fan motor 14g are disposed on the cooling opening 11d1 provided in the top panel 11d, and is assembled to the top panel 11d. In this state, as shown in FIG. 3, an inflow hole 14a1 and an outflow hole 14a2 (cooling air circulation fan motor 14g) provided in the base 14a are provided in the cover 14h and the inside of the cooling storage body 11 (inside R). Communicate).
[0009]
The duct 15 forms a cool air passage P with the top panel 11d. After the refrigeration unit 14 is assembled to the top panel 11d, the duct 15 is assembled to the top panel 11d and the base 14a using screws 17. It has been. The duct 15 is made of a flexible and bendable resin sheet (for example, a resin sheet of polyvinyl chloride or PET having a thickness of about 0.5 mm) as shown in FIG. It is formed by punching into a predetermined shape ( a shape having a trapezoidal shape portion and a rectangular portion extending from the center of the upper base of the trapezoidal shape portion and having a long side extending along the upper base) .
[0010]
Further, the duct 15 has six mounting holes 15a to 15f, and a distance L1 between the mounting holes 15a and 15b (mounting holes provided at the extending end of the rectangular portion) is provided in the base 14a. The distance L4 between the mounting holes 14a3 and 14a4 is formed approximately equal to the distance L4, and the distance L2 between the mounting holes 15c and 15d (the mounting holes provided at both ends of the upper base in the trapezoidal shape portion) is the mounting provided on the lower surface of the top panel 11d. The distance L3 between the mounting holes 15e and 15f (the mounting holes provided at both ends of the lower bottom portion in the trapezoidal shape portion) is formed to be substantially equal to the distance L5 between the holes 11d2 and 11d3, and the mounting hole provided in the lower surface of the top panel 11d. It is formed a predetermined amount larger than the interval L6 between 11d4 and 11d5.
[0011]
For this reason, by attaching the flat resin sheet (see FIG. 4), which is the material of the duct 15, to the top panel 11d and the base 14a in a state of being bent and deformed by hand (see FIG. 2), The cooling opening 11d1 of the panel 11d is partitioned into an inflow chamber R1 that communicates with the inflow hole 14a1 of the base 14a and an outflow chamber R2 that communicates with the outflow hole 14a2 of the base plate 14a, and stores cold air from the outflow chamber R2. A lead-out chamber R3 for leading to the left of the inner R is partitioned, and a cool air passage P for circulating cool air is formed between the top panel 11d and the duct 15 as indicated by an arrow in FIG. Note that the circulation of the cold air indicated by the arrows in FIG. 3 occurs when the cold air circulation fan motor 14g of the refrigeration unit 14 operates.
[0012]
By the way, the duct 15 is first fixed to the mounting holes 11d2 and 11d4 of the top panel 11d through the screws 17 in the mounting holes 15c and 15e, and then fixed to the mounting holes 11d3 of the top panel 11d through the screws 17 in the mounting holes 15d and 15f. It is fixed to 11d5 and finally fixed to the mounting holes 14a3 and 14a4 of the base 14a through screws 17 in the mounting holes 15a and 15b (the assembly order can be changed as appropriate), and the screws 17 are mounted to the mounting holes 15d and 15f. When fixing to the mounting holes 11d3 and 11d5 of the top panel 11d through, the mounting holes 15e and 15f are bent downward (as separated from the top panel 11d) by hand as shown in FIG. When fixing the mounting holes 15a and 15b to the mounting holes 14a3 and 14a4 of the base 14a through the screws 17, the mounting holes 15a and 15b There is bent horizontally while being curved upward as shown in FIG. 2 at hand. It should be noted that at the portion curved upward, both front and rear end portions (end surfaces of the duct 15) are in sliding contact with the wall surface of the cooling opening 11d1 of the top panel 11d.
[0013]
In the cooling storage 10 of this embodiment configured as described above, since the material of the duct 15 is configured by a flexible and bendable resin sheet, the duct 15 is not assembled until the duct 15 is assembled to the top panel 11d and the base 14a. Can be handled as a flat plate. For this reason, it is possible to overlap the duct 15 and pack it compactly in a small packing case, and to improve the transportability.
[0014]
Further, in this embodiment, the duct 15 has a predetermined shape (a trapezoidal shape portion and a rectangular shape having a long side extending along the upper base and extending from the center of the upper base of the trapezoidal shape portion from a flat resin sheet. It is formed by punching into a shape having a portion . For this reason, compared with the case where the duct 15 is formed into a curved shape as shown in FIG. 2 with a molding die, the mold cost of the duct 15 can be reduced, and the duct 15 is produced in a small amount. However, it is possible to reduce the unit price.
[0015]
In the said embodiment, although the duct 15 was assembled | attached to the top | upper surface panel (upper warehouse wall in cooling storage) 11d, and the cold air | gas channel | path P was formed, the duct was assembled | attached to another warehouse wall. Even in the case where the cold air passage is formed, the present invention can be implemented in the same manner as in the above-described embodiment or appropriately modified.
[Brief description of the drawings]
FIG. 1 is a partial perspective view showing an embodiment of a cooling storage unit employing a duct structure according to the present invention.
FIG. 2 is a perspective view partially showing the inside of the cooling storage shown in FIG. 1;
3 is a longitudinal sectional front view of a main part in a state where the refrigeration unit shown in FIG. 1 and the duct shown in FIG. 2 are assembled to the top panel shown in FIG.
4 is a plan view of a single duct shown in FIGS. 2 and 3. FIG.
FIG. 5 is a perspective view illustrating a conventional duct structure.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 ... Cooling storage, 11 ... Cooling storage main body, 11a ... Back panel, 11b ... Left side panel, 11c ... Right side panel, 11d ... Top panel, 11d1 ... Cooling opening, 12 ... Cooling storage door, 13 ... Hinge , 14 ... Refrigeration unit, 14a ... Base of the refrigeration unit, 15 ... Duct, 15a-15f ... Mounting hole, 16, 17 ... Screw, P ... Cold air passage.

Claims (2)

A duct (15) which forms a cold air passage (P) by a warehouse wall (top panel 11d) which is arranged in the cabinet and provided with a cooling opening (11d1) for assembling the refrigeration unit (14 ). In the cooling storage (10) provided with the above, the duct (15) is formed of a flexible and hand-bendable resin sheet as a raw material and extends from the trapezoidal shape portion and the center of the upper base of the trapezoidal shape portion along the upper base. It is formed in a shape having a rectangular part having a long side, and the rectangular part is bent by hand bending in the cooling opening (11d1) and is attached to the extended end part. The trapezoidal portion is fixed to the base (14a) of the refrigeration unit by screws (17) passed through the holes (15a, 15b), and the central part of the lower bottom is deformed by hand bending inside the warehouse wall. Lower bottom curved away from the wall It is fixed to the warehouse wall by screws (17) passed through mounting holes (15e, 15f) provided at both ends and screws (17) passed through mounting holes (15c, 15d) provided at both ends of the upper bottom. A duct structure for a cooling storage , wherein the cold air passage (P) is formed between the warehouse wall (top panel 11d) and the duct (15) . The duct structure for a cooling storage according to claim 1, wherein the duct is formed by punching a flat resin sheet into a predetermined shape having the trapezoidal shape portion and the rectangular shape portion .

Images