JPH07218092A - Refrigerating and cold storage display case - Google Patents

Abstract

PURPOSE:To provide a refrigerating and cold storage display case in which a cost and a labor hour for forming a cold gas passage can be deleted and condensation of an outer surface of an outer box can be prevented. CONSTITUTION:A body 9 is formed of a heat insulation box 4 formed by filling a foamable heat insulator 3 between an inner box 1 and an outer box 2. Steps 18 extended vertically are formed oppositely at both corners of a depth side of the box 1, and panels 17 are mounted at the steps 18 to form a cold gas passage 6 on a back of a commodity containing chamber 5 without using a mounting member. The steps 18 are formed oppositely at both corners of the depth side of the box l, distances between both side outer surfaces of the box 2 and the passage 6 can be increased, and moisture condensation of the both side outer surfaces of the box 2 can be prevented.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a freezing / refrigerating showcase in which a cold air passage is defined at the back of a product storage room, and more particularly to the definition of the cold air passage.

[0002]

2. Description of the Related Art In a conventional freezing / refrigerating showcase, a cold air passage is defined at the back of a product storage room, and the cold air passing through this cold air passage is discharged from a cold air outlet provided at the top of the product storage room. After the air is blown out, there is one in which the cold air suction port provided at the bottom of the merchandise storage chamber sucks it back into the cold air passage again, and the circulating cold air cools the merchandise storage chamber. Further, in an open-type freezing / refrigerating showcase with an open front surface, an air curtain that covers the front opening is formed by a part of the cool air passing through the cool air passage, and outside air may enter the product storage room. There are things that I decided not to do.

As shown in FIG. 4, the body of such a refrigerating / refrigerating showcase includes an inner box 1 made of a thin iron plate, an outer box 2 made of a thin iron plate for covering the inner box 1, and an inner box 1. It is configured by a heat insulating box body 4 formed of a foaming heat insulating material 3 such as urethane foam filled between the outer boxes 2. Also,
The cold air passage 6 at the back of the product storage chamber 5 formed inside the main body 4A constituted by the heat insulating box 4 has a mounting member (spacer) 7 attached to the inner box 1 of the heat insulating box 4. The rear duct 8 is defined by attaching and fixing the rear duct 8 with screws or the like (not shown).

By the way, the mounting member 7 is mounted on the inner box 1 by directly screwing the inner box 1 or forming a heat-insulating box body such as the one disclosed in Japanese Utility Model Publication No. 5-12701. After inserting the holding portion of the attachment member into a through hole (not shown) formed in the inner box, the foamable heat insulating material is foamed and fixed to the inner box by the foamed solidified heat insulating material.

[0005]

By the way, in such a conventional freezing / refrigerating showcase, there is one in which a product shelf is directly attached to the rear duct. When the product rack is directly attached to the rear duct in this manner, the weight of the product is applied to the rear duct, and therefore the holding force of the mounting member that holds the rear duct needs to be increased.

Therefore, conventionally, the mounting member is formed of, for example, a thick member, or is formed in such a shape that the contact area with the inner box is wide so as to distribute the load of the rear duct. . However, if the mounting member is formed in such a shape, there is a problem that the cost becomes high,
In addition, there is a problem that the work of mounting the mounting member is troublesome. In the conventional freezer refrigeration showcase, when the inner box and the outer box are close to each other, the outer surface of the outer box close to the cold air passage is filled with the cool air passing through the cold air passage even when the foam insulation material is filled. There was also the problem of dew.

Therefore, the present invention has been made to solve such a problem, and it is an object of the present invention to provide a refrigerating / refrigerating showcase capable of reducing the cost and labor for defining the cold air passage. It is intended. Another object of the present invention is to provide a freezer-refrigerating showcase capable of preventing dew on the outer surface of the outer box.

[0008]

According to the present invention, there is provided a main body composed of a heat insulating box body formed by filling a foaming heat insulating material between an inner box and an outer box, and formed inside the main body. In a freezing / refrigerating showcase in which a cold air passage is defined at the back of the product storage room, the cold air passage forms a step portion that extends in the up-down direction so as to face both inner corners of the inner box. It is formed by attaching a panel to the section.

[0009]

[Operation] While the main body is made up of a heat insulating box body formed by filling a foaming heat insulating material between the inner box and the outer box, it extends vertically in opposition to both inner corners of the inner box. By forming a step portion and attaching a panel to this step portion, a cold air passage can be defined in the back portion of the product storage chamber without using a mounting member. Also, by forming the step portions facing both the inner corners of the inner box, it is possible to increase the distance between the outer surfaces on both sides of the outer box and the cold air passage, and to prevent dew on both outer surfaces of the outer box. Can be prevented.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is an external perspective view of a freezer-refrigerating showcase according to an embodiment of the present invention, and FIG. 2 is a side sectional view thereof. In the figure, the same reference numerals as those in FIG. 4 indicate the same or corresponding parts.

In FIGS. 1 and 2, reference numeral 9 denotes a freezing / refrigerating showcase body (hereinafter referred to as a main body) in which a glass door 10 is attached to a front opening of a product storage chamber 5 which is an example of a freezing / refrigerating showcase. , 11 are machine rooms provided below the product storage chamber 5 and in which cooling units such as compressors and condensers (not shown) are arranged. Also, 12
Is a Dick pan arranged at the bottom of the product storage chamber 5, and a cooling fan 13 and an evaporator 14 are arranged in the space between the Dick pan 12 and the heat insulating box 4. The cool air that has undergone heat exchange at 14 passes through the cool air passage 6 by the cooling fan 13 and is blown into the product storage chamber 5 to cool the product storage chamber 5.

On the other hand, a plurality of shelves 15, 15 on which products (not shown) are placed are vertically arranged in the product storage chamber 5, and these shelves 15, 15 are arranged in the product storage chamber 5. Shelf pillars 16 (only one of which is shown in the drawing) attached to both inner wall surfaces of the sheet metal panel and a thin iron plate panel attached to the back of the product storage chamber 5 to define a cooling passage 6 (hereinafter It is designed to be held by a back panel (17).

As shown in FIG. 1, locking holes 18 are formed at both end portions of the rear panel 17, and the rear ends of both side frame portions 15a of the shelves 15, 15 are formed in the locking holes 18. The shelves 15, 15 can be held by inserting. Further, the locking hole 18 of the rear panel 17 communicates with the cooling passage 6, and a part of the cool air passing through the cooling passage 6 is also blown out from the locking hole 18 so that the product storage chamber 5 Can be cooled evenly.

Here, the rear panel 17 has a step portion 18 formed so as to extend in the up-down direction so as to face both corners on the inner side of the inner box 1 as shown in FIG. It is installed and fixed in. And this way inner box 1
By directly attaching the rear panel 17 to the stepped portions 18 formed at both inner corners of the product, the cold air passage 6 can be defined in the back portion of the product storage chamber 5 without using a conventional attachment member. Has become.

Further, by mounting the rear panel 17 on the step portion 18 extending in the vertical direction, the load of the commodity applied to the rear panel 17 when the commodity is placed on the shelves 15, 15 is applied to the rear panel of the step portion 18. It can be received by the entire front surface portion 18a that is in contact with 17, and the rear panel 17 can be held without using a mounting member. Further, since the back panel 17 can be held without using the mounting member in this way, the cost for defining the cold air passage 6 can be reduced.

The front portion 18a of the stepped portion 18 has a predetermined width so that the rear panel 17 under the load of the product can be held and the rear panel 17 can be screwed. To have. When attaching the rear panel 17, after forming the heat-insulating box body 4, the rear panel 17 may be attached to the front portion 18a of the stepped portion 18 with screws or the like. Since there is no need to attach it, the labor required for assembly can be reduced.

Further, by forming such a stepped portion 18, it is possible to increase the distance between the outer surfaces on both sides of the outer box 2 and the cool air passage 6, and to prevent dew on both outer surfaces of the outer box 2. Will be able to. Note that the dew condensation on the rear surface of the outer case 2 is such that the exhaust heat of the compressor in the machine chamber 11 flows through an exhaust heat passage (not shown) formed along the rear plate 2a of the outer case 2, for example. It can be prevented by doing so.

Further, by forming such a stepped portion 18, the lateral width of the cool air passage 6 is narrowed, and the contact area of the cool air blown out from the evaporator 14 with the inner box rear surface 1a can be reduced accordingly. it can. By reducing the contact area between the cool air and the inner box 1 in this way, it is possible to minimize the influence of the outside air that the cool air propagates through the outer box 2, the foam heat insulating material 3 and the inner box 1. Has become.

[0020]

As described above, according to the present invention, the panel is attached to the step portion formed so as to extend in the up-down direction so as to face both corners on the inner side of the inner box, so that the attaching member can be attached. Since it is possible to define the cold air passage in the back of the product storage chamber without using, the cost and labor for defining the cold air passage can be reduced. Further, by forming such a stepped portion, it is possible to increase the distance between the outer surfaces on both sides of the outer box and the cold air passage, and it is possible to prevent dew on both outer surfaces of the outer box.

[Brief description of drawings]

FIG. 1 is an external perspective view of a freezer-refrigerating showcase according to an embodiment of the present invention.

FIG. 2 is a side sectional view of the freezer-refrigerating showcase.

FIG. 3 is a plan cross-sectional view of the freezer-refrigerating showcase.

FIG. 4 is a plan sectional view of a conventional freezer-refrigerating showcase.

[Explanation of symbols]

 1 Inner Box 2 Outer Box 4 Insulation Box 6 Cold Air Passage 17 Rear Panel 18 Steps

Claims (1)

[Claims] 1. A main body composed of a heat-insulating box body formed by filling a foaming heat insulating material between an inner box and an outer box, and a cool air passage in the back of a product storage chamber formed inside the main body. In the refrigerating and refrigerating showcase, the cold air passage is formed by forming a step portion that extends in the up-down direction so as to face both inner corners of the inner box, and attach a panel to this step portion. A freezer-refrigerated showcase characterized by