JP5869857B2 - Refrigerated showcase - Google Patents

Description

  The present invention relates to a refrigerated showcase used for displaying refrigerated or frozen products in a supermarket, a convenience store, etc., and in particular, in a round refrigerated showcase having no product display shelves, the product storage at the corner portion thereof. The present invention relates to a refrigerated showcase capable of improving the cooling effect of a section.

  In a round-type refrigerated showcase with at least one front and one open side, there is a problem that a sufficiently cool air curtain is not formed in the product storage section in the corner, and the cooling effect of the product displayed in that section is low. is there. In order to cope with this problem, various refrigerated showcases have been proposed in which measures for enhancing the cooling effect of the corner portion are taken (see, for example, Patent Documents 1 to 4).

JP-A-11-237158 JP 2006-162118 A Japanese Patent No. 4362190 Japanese Patent No. 4362191

  The refrigerated showcase described in the above-mentioned Patent Document 1 is provided with a plurality of cold air outlets on the bottom plate of the product storage unit to cool the entire product storage unit on the bottom plate. The storage cannot be actively cooled.

  Since the refrigerated showcase described in the above-mentioned Patent Document 2 is provided with a cold air introduction duct on the side portion of the product storage unit so that the cold air introduced into the duct is blown upward, the product storage in the corner portion is stored. The cooling effect of the product placed on the bottom plate of the part is slightly low.

  Each of the refrigerated showcases described in Patent Documents 3 and 4 is a round-type refrigerated showcase provided with a product display shelf, and the refrigerated showcase described in Patent Document 3 supports a shelf plate in a corner portion. By using the air-conditioning bracket as a blower duct, and the refrigerated showcase described in Patent Document 4 has a shelf structure supported by the bracket at the corner portion as a duct structure, sufficient air is supplied to each corner portion. The object is to form a curtain and to effectively cool a product placed mainly on a corner portion of a shelf board. Therefore, in the round type refrigerated showcase having no merchandise display shelf, there is a problem that the cooling effect of the merchandise placed on the bottom plate of the merchandise storage section at the corner is slightly low.

  The present invention has been made paying attention to such problems, and improves the cooling effect of products displayed in the product storage section of the corner portion, even in a round-type refrigerated showcase without product display shelves. It aims to provide a refrigerated showcase that can be used.

In order to solve the above problems, the refrigerated showcase of the present invention is:
While forming a cold air circulation path between the outer case and the inner case, the inner case is provided with an upward cold air blowing duct communicating with the cold air circulation path, and at least on the front surface and one side of the cold air blowing duct, Forming a product storage part opened forward and one side, blowing cold air from a cold air outlet at the top of the cold air duct toward the cold air inlet of the outer periphery of the inner case, In the refrigerated showcase that keeps the product in the product storage section cold by forming a cold air curtain above it,
A plurality of discharge holes that extend toward the corner portion of the product storage unit and discharge cool air to the corner portion of the product storage unit are formed on a wall surface of a corner portion where a front surface and one side surface of the cold air duct intersect. The cool air induction duct is provided so as to communicate with the internal space of the cool air blow duct.
According to this feature, since the cool air in the cool air blowing duct is discharged from the plurality of discharge holes formed in the cool air induction duct to the corner portion of the product storage unit, a round type refrigerated showcase without a product display shelf Even if the air curtain of sufficient cold air is not formed in the corner portion, the cooling effect of the product displayed in the product storage portion of the corner portion can be improved, and the quality control of the product is easy. Become.

The refrigerated showcase of the present invention is
The feature is that the height of the cold air induction duct becomes gradually smaller toward the corner portion.
According to this feature, the partition member is not conspicuous, and the risk of obstructing the display operation or taking out of the product is reduced.

The refrigerated showcase of the present invention is
The cold air induction duct has a downward U-shaped cross section, and a plurality of discharge holes are provided on the upper surface and both side surfaces.
According to this feature, since the cool air guided into the cool air induction duct is discharged to the upper side and both sides thereof, the cooling efficiency of the product storage portion at the corner portion is increased.

The refrigerated showcase of the present invention is
The feature is that the size of the discharge hole provided in the cold air induction duct is increased toward the corner portion.
According to this feature, the amount of cool air discharged is larger at the corner portion, so even if the product storage section is a large refrigerated showcase or turbulence occurs below the air curtain, the product on the outer periphery of the corner section Goods displayed in the storage unit are effectively cooled.

The refrigerated showcase of the present invention is
It is characterized in that the number of discharge holes provided in the cold air induction duct increases toward the corner.
According to this feature, the amount of cool air discharged is larger at the corner portion, so even if the product storage section is a large refrigerated showcase or turbulence occurs below the air curtain, the product on the outer periphery of the corner section Goods displayed in the storage unit are effectively cooled.

The refrigerated showcase of the present invention is
A suction fan that sucks in cold air from a cold air suction port in the outer peripheral portion of the inner case is provided in the cold air circulation path below the product storage portion in the corner portion.
According to this feature, the cooling efficiency of the cool air at the outer peripheral portion of the corner portion is improved, and the risk of turbulence in the lower air curtain is reduced, so that the cooling effect of the products displayed in the product storage portion of the corner portion is further improved. Can be improved.

It is a perspective view which shows one Example of the refrigerated showcase of this invention. Similarly, it is a plan view. FIG. 3 is an enlarged longitudinal sectional side view taken along line II-II in FIG. 2. It is an expansion perspective view which shows the modification of a cold air induction duct. Similarly, it is an expansion perspective view which shows the other modification of a cold air induction duct.

  EMBODIMENT OF THE INVENTION The form for implementing the refrigerated showcase which concerns on this invention is demonstrated below based on an Example.

  FIG. 1 is a perspective view of a refrigerated showcase of the present invention, FIG. 2 is a plan view of the same, and FIG. 3 is an enlarged longitudinal side view taken along line II-II in FIG. The refrigerated showcase 1 is a round type having a front surface (hereinafter, described before the front of the paper in FIG. 2), a right side surface, and a rear surface opened, and is a plan view fixed to the upper surface of the base 2. It consists of a substantially square showcase body 3. The showcase body 3 includes an outer case 4 made of a heat-insulating housing that closes its lower surface and front, rear, left, and right four surfaces, and a substantially horizontal inner case 5 that also serves as a bottom plate for product display that closes an opening on the upper surface. It has.

  As shown in FIG. 1, the upper surface of the inner case 5 is closed on the upper surface of the central portion, and the lower surface is long in the left-right direction communicating with the internal space formed between the outer case 4 and the inner case 5. A cold air duct 6 is erected. On the upper part of the inner case 5, that is, on the front side, the right side, and the rear side of the cool air blowing duct 6, a product storage part S opened forward, right side, and rear is formed.

  As shown in FIG. 2, a plurality of upper and lower cold air outlets 7 are formed on the upper portion of the wall surface excluding the left side surface of the cold air blowing duct 6. A plurality of cold air inlets 8 for sucking the cold air blown out from the cold air outlet 7 are formed on the outer peripheral portion of the inner case 5 excluding the left side portion.

  As shown in FIG. 3, the internal space between the outer case 4 and the inner case 5 is partitioned up and down by a partition wall 9, and in the cool air circulation path 10 below the partition wall 9, two downward-blowing type suctions are provided. Fans 11 and 11 and two coolers 12 and 12 are accommodated. The cool air blowing duct 6 communicates with the cool air circulation path 10 below the partition wall 9. In addition, at the lower end portion in the cool air blowing duct 6, three upward blowing type blowing fans 13 are provided at equal intervals in the left-right direction.

  As shown in FIGS. 2 and 3, the suction fan 11 is provided in the cool air circulation path 10 directly below the front and rear corners of the inner case 5, and a plurality of suction fans 11 are formed on the outer periphery of the corner of the inner case 5. The cold air can be efficiently sucked from the cold air inlet 8.

  When the suction fan 11 and the blower fan 13 are operated, the cold air cooled by the cooler 12 flows into the cold air blow duct 6 and blows out from a plurality of cold air outlets 7 provided on the cooler air duct 6 as shown by arrows in FIG. The cooled air is sucked from the cool air suction port 8 of the inner case 5, thereby forming a cold air curtain above the commodity storage section S of the inner case 5. Cold air is circulated in the internal space between the inner case 5 and the inside of the cold air blowing duct 6. The product displayed in the product storage unit S is kept cold by the air curtain described above.

  Further, on the wall surface of the corner portion where the front surface, the right side surface and the rear surface of the cold air blowing duct 6 intersect, the rear of the cold air induction ducts 14 and 14 having a U-shaped cross section extending toward the corner portion of the commodity storage section S. The edges are fixed. The rear ends of the cold air induction ducts 14 communicate with the inside of the cold air duct 6 through the air holes 15 formed in the corner wall surfaces of the cold air duct 6. The both cold air induction ducts 14 are attached so that the lower ends thereof are in contact with the upper surface of the corner portion of the inner case 5, thereby serving as a partition member that partitions the product storage portion S forward, rightward, and rearward.

  Furthermore, the height of both cold air induction ducts 14 is gradually reduced from the cold air blowing duct 6 toward the corner portion (outer peripheral portion) of the inner case 5, and the side surface shape is substantially a right triangle. A plurality of discharge holes 16 for guiding the cool air in the cool air blowing duct 6 into the cool air guide duct 14 and discharging the cool air in the cool air guide duct 14 to the corner portion of the product storage section S are formed in the upper surface and both side surfaces. Has been.

  As described above, in the refrigerated showcase 1 of the embodiment, the cold air blow duct 6 extends toward the corner portion of the commodity storage section S on the wall surface of the corner portion where the front surface, the right side surface, and the rear surface intersect. The cold air induction ducts 14 and 14 having a U-shaped cross section are provided, and the cold air in the cold air duct 6 is discharged to the corner portion of the product storage section S from the numerous discharge holes 16 drilled in the cold air induction ducts 14 and 14. Even if it is a round-type refrigerated showcase without a product display shelf, and even if a sufficiently cold air curtain is not formed at the corner, the product displayed in the product storage section S at the corner of the inner case 5 The cooling effect can be improved, and the quality control of the product becomes easy.

  Further, the suction fans 11, 11 are provided in the cool air circulation path 10 immediately below the front and rear corner portions of the inner case 5, and cool air is supplied from a plurality of cool air suction ports 8 formed on the outer peripheral portion of the corner portion of the inner case 5. Since the cooling efficiency of the cool air at the outer peripheral portion of the corner portion is improved and the possibility of turbulence in the lower air curtain is reduced, the product storage portion S in the corner portion is displayed. The cooling effect of goods can be improved more.

  Furthermore, the lower end of the cool air induction duct 14 is brought into contact with the upper surface of the inner case 5 so as to serve as a partition member that partitions the product storage part S forward, sideward, and rearward. In addition, the products can be displayed nicely by type or orderly, increasing the sales promotion effect.

  The height of the cold air induction duct 14 is gradually reduced from the cold air blowing duct 6 toward the corner portion (outer peripheral portion) of the inner case 5, so that it is not conspicuous as a partition member, and at the time of displaying and taking out products. The risk of obstacles is reduced.

  4 and 5 are enlarged perspective views showing modifications of the cold air induction duct 14, and the cold air induction duct 14 shown in FIG. The cooling air induction duct 14 shown in FIG. 5 is increased in size toward the portion (outer peripheral portion), and the number of discharge holes 16 drilled in the upper surface and both side surfaces increases toward the corner portion (outer peripheral portion). It is.

  In this way, in any cold air induction duct 14, the discharge amount of cold air becomes larger at the corner (outer peripheral part), so that the product storage part is distorted below the air curtain even in a large refrigerated showcase. Even if this occurs, the product displayed in the product storage part at the outer peripheral part of the corner part is effectively cooled.

DESCRIPTION OF SYMBOLS 1 Refrigerated showcase 2 Base 3 Showcase body 4 Outer case 5 Inner case 6 Cold air blow duct 7 Cold air outlet 8 Cold air inlet 9 Partition 10 Cold air circulation path 11 Suction fan 12 Cooler 13 Blower fan 14 Cool air induction duct 15 Hole 16 Discharge hole S Product storage

Claims (6)

A cold air circulation path is formed between the outer case and the inner case, and the inner case is provided with a cold air duct that communicates with the cold air circulation path. A product storage part opened on both sides is formed, and cold air is blown out from the cold air outlet at the upper part of the cold air blowing duct toward the cold air inlet of the outer peripheral part of the inner case, above the product storage part In the refrigerated showcase designed to keep the product in the product storage section cold by the formed cold air curtain,
From the wall surfaces at both corners where the front and both sides of the cold air blowing duct intersect, cylindrical cold air induction ducts extending toward both corners of the product storage unit respectively contact the bottom surface of the inner case. Provided to touch,
The cold air induction duct communicates with the cold air circulation path, and at least both sides in the extending direction thereof are provided with discharge holes for discharging cold air to corner portions of the product storage unit. Showcase.   The refrigerated showcase according to claim 1, wherein the height of the cold air induction duct is gradually decreased toward the corner portion.   The refrigerated showcase according to claim 1 or 2, wherein the cold air induction duct has a downward U-shaped cross section, and a plurality of discharge holes are provided on an upper surface and both side surfaces thereof.   The refrigerated showcase according to any one of claims 1 to 3, wherein a size of the discharge hole provided in the cold air induction duct is increased toward a corner portion.   The refrigerated showcase according to any one of claims 1 to 4, wherein the number of discharge holes provided in the cold air induction duct increases toward the corner portion.   The refrigeration according to any one of claims 1 to 5, wherein a suction fan that sucks in cool air from a cool air suction port in an outer peripheral portion of the inner case is provided in a cool air circulation path below the product storage portion in the corner portion. Showcase.

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