JP2721956B2 - Open showcase - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an open showcase for displaying and selling perishable foods and the like, and more particularly to an improved ceiling structure so that luminous intensity of ceiling lighting in a refrigerator is not reduced.

[0002]

2. Description of the Related Art In an open showcase, a plurality of display shelves are installed, and the interior of the open front can be cooled by an air curtain, so that shoppers can freely take fresh food and the like displayed on the shelves. It is available for purchase.

FIG. 4 shows a main part of a ceiling structure of a conventional open showcase. In this figure, the cool air that has passed through a circulation air passage 2 formed inside a casing 1 is blown out from an outlet 5 at an upper portion of a front surface to a product entrance / exit portion on the front surface to form an air curtain at the entrance / exit portion. Part of the cool air is also blown out from a punching plate 7 provided obliquely at the center of the ceiling in the refrigerator for the purpose of equalizing the temperature in the refrigerator.

A lamp mounting base 21 is provided on the ceiling plate 16 in the cabinet so as to protrude downward. On the lower surface of the lamp mounting base 21, a straight tube lamp 13 is provided as a ceiling light using a lamp holder 18. Although attached, the cold air blown from the punching plate 7 on the ceiling directly hits the lamp 13.

[0005]

As described above, in the conventional open showcase, the cool air blown from the punching plate 7 at the ceiling in the refrigerator is directly blown to the lamp 13 for ceiling lighting as shown by the arrow C in the figure. Therefore, there is a problem that the lamp 13 is cooled by cold air and the luminous intensity is reduced.

[0006] When the brightness of the lamp 13 decreases, the illuminance on the shelf decreases, which causes a problem that displayed products are difficult to see. On the other hand, it has been practiced to cover the lamp with a transparent lamp cylinder (lamp cylinder) to suppress the cooling of the lamp, but this was insufficient.

[0007] The present invention has been proposed to solve such problems of the prior art, and has as its object to provide an open showcase that can prevent the luminous intensity of ceiling lighting from being reduced. .

[0008]

In order to achieve this object, a first invention of the present application comprises an outer case and an inner case forming an inside of a refrigerator. The product entrance is opened in the part, the cool air from the circulation air passage blows out from the outlet at the upper part of the front of the case to form an air curtain at the product entrance, and the ceiling of the inner case passes through a punching plate that is inclined forward. A straight pipe ceiling lamp for illumination is provided in the left and right direction by a holder below the ceiling of the inner case by a holder, and cooling air in the circulating air passage is blown out from the small hole of the punching plate toward the ceiling lamp. In the casing, on the ceiling of the inner case behind the ceiling lamp, a forwardly inclined downward cold air guide for preventing the cold air blown from the cold punching plate from being bent downward and directly blowing on the ceiling lamp. Certain as those provided.

[0009] In a second aspect of the present invention, in the casing, the cold air blown from the cold air blow-off plate is bent downward in the refrigerator so that the cold air does not directly blow on the ceiling lamp. Lower the rear wall of the stand diagonally from the ceiling toward the front side of the interior of the cabinet, and make the height of the rear wall of the lamp mounting base higher than the front wall of the interior of the cabinet to make it higher than the front wall of the lamp mounting base. The mounting surface is inclined toward the front side of the refrigerator, and a ceiling lamp is provided on the mounting surface.

[0010]

According to the structure of the first aspect of the present invention, since the cool air guide plate is provided behind the ceiling lamp, the cool air blown out from the cool air blow-by plate is bent inside the inner case by the cool air guide plate and the ceiling lamp is bent. Will not hit directly. This does not reduce the luminosity of the lamp, since the lamp is no longer cooled.

According to the structure of the second aspect of the invention, the rear wall of the lamp mounting base provided on the lower surface of the ceiling of the inner case is lowered obliquely from the ceiling toward the front of the inner case, and is lowered toward the front of the inner case. Since the ceiling lamp was mounted on the inclined lamp mounting surface, the cool air blown out from the cold air blower plate was bent inside the inner case by the rear wall of the lamp mounting base,
The ceiling lamp is not directly exposed to the cool air, the lamp is not cooled and the luminosity of the lamp does not decrease.

[0012]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a longitudinal sectional view showing one embodiment of an open showcase according to the present invention. In the figure, a casing 1 in which a heat insulating material is provided is such that an air circulation path 2 is formed between an outer case 1a and an inner case 1b. A product entrance 1c is opened in the section.

However, the blower 4 and the cooler 3
The cool air that has passed through the cooler 3 is blown out from a honeycomb-shaped outlet 5 provided in the front of the ceiling in the casing 1 to form an air curtain 6 at the product entrance 1c.

The ceiling of the inner case 1b is formed in two stages through a punching plate 7 which tilts forward, and a part of the cooling air in the circulating air passage passes through a number of small holes of the punching plate 7 to the inside of the refrigerator. Case).

The cool air for the air curtain blown out to the entrance 1c at the front of the case is sucked from the suction port 8 provided at the lower front of the casing 1 and is again taken into the circulation air passage 2 to be blown by the blower 4 Circulated by

In this open showcase, for example, three-stage display shelves 9, 10, and 11 are provided in the storage, and the lower part of the front end of each shelf and a ceiling portion described later are used for internal illumination for illuminating the displayed products. Lamps 12 and 13 are provided, respectively, and these lamps 12 and 13 are straight tube fluorescent lamps.

In addition, a mirror 14 for displaying products displayed on the shelf 11 is mounted obliquely on the rear upper portion of the uppermost shelf 11, so that even a short shopper can display the displayed products on the uppermost shelf 11. It can be easily checked. In addition,
Reference numeral 15 denotes a plate mounting portion for mounting a product type display plate and the like.

Next, the structure of a ceiling provided with ceiling lighting will be described in detail with reference to FIG. In this figure, on a ceiling plate 16 between the air outlet 5 for air curtain and the punching plate 7 on the front surface of the ceiling, a lamp mounting base 17 formed of a channel rod projecting downward (inside the refrigerator) is provided on the side of the case. The ceiling lamp 13 is attached to the lamp mounting base 17 by a lamp holder 18.

The ceiling plate 16 behind the lamp mount 17 is provided with a substantially L-shaped cold air guide plate 19 extending in the longitudinal direction of the ceiling lamp 13.
The mounting plate 19a is fixedly mounted on the ceiling plate 16 with screws or the like. Thus, the cold air guide plate 19 is tilted forward into the inner case and descends downward, and the height from the ceiling plate surface is substantially equal to the height of the lamp 13.

As described above, by providing the cool air guide plate 19 on the ceiling plate 16 behind the ceiling lamp 13, the cool air blown out from the punching plate 7 is bent inward as shown by an arrow A in the drawing. There is no direct contact with the lamp 13.

Therefore, the lamp 13 is not cooled by the cool air blown from the punching plate.
Does not decrease and the illuminance of the uppermost shelf 11 does not decrease, so that the difference in brightness from the other shelves 9 and 10 is reduced, and the displayed products can be displayed. You can shine and display.

Next, another embodiment shown in FIG. 3 will be described. In this embodiment, the lamp mounting base 20 is mounted on the ceiling plate 16 between the cool air outlet 5 and the punching plate 7 at the front of the ceiling.
When installing the case horizontally, the rear wall 2
The lamp mounting surface 20b is inclined obliquely downward toward the front surface of the case while the rear wall 20a is made higher than the front wall 20c of the mounting stand.

A ceiling lamp 13 is mounted on a lamp mounting surface 20b, which is inclined obliquely toward the front side of the case, using a lamp holder 18. When configuring the lamp mounting base 20, the rear side of the ceiling front plate 16a is bent as shown in the figure and connected to the ceiling plate 16.

As described above, the rear wall 2 of the lamp mounting base 20
0a is inclined obliquely downward toward the front side of the case, so that the mounting base rear wall 20a functions as a cool air guide plate, and the cool air blown out from the punching plate 7 is stored in the refrigerator as indicated by an arrow B in the figure. It is bent inward and out of direct contact with the ceiling lamp 13. Therefore, since the lamp 13 is not cooled by the cool air blown out from the punching plate, the same operation and effect as in the first embodiment can be obtained.

The present invention can be applied to an open showcase having a single-layer or multiple-layer cooling air circulation path inside the casing 1.

[0026]

As described above, according to the present invention, since the upper lamp is not directly cooled by the cold air blown from the punching plate, the luminous intensity of the upper lamp does not decrease and the uppermost shelf becomes dark. There is almost no difference in illuminance with other shelves, and the product display effect is improved.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view showing one embodiment of an open showcase according to the present invention.

FIG. 2 is a longitudinal sectional view showing a main part of a ceiling structure of an open showcase according to the present invention.

FIG. 3 is a longitudinal sectional view showing a main part of a ceiling structure of an open showcase according to another embodiment.

FIG. 4 is a longitudinal sectional view showing a main part of a ceiling structure of a conventional open showcase.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Casing 1a Outer case 1b Inner case 1c Commodity entrance / outlet 2 Circulating airway 3 Cooler 4 Blower 5 Air outlet 6 Air curtain 7 Punching plate 8 Suction port 9,10,11 Display shelf 12 Lamp 13 Ceiling lamp 14 Mirror 16 Ceiling plate 16a Ceiling front plate 17 Lamp mounting base 18 Lamp holder 19 Cold air guide plate 20 Lamp mounting base 20a Rear wall 20b Lamp mounting surface 20c Front wall

Claims (2)

(57) [Claims] 1. An outer case and an inner case forming an inside of a refrigerator, a circulation air passage is formed therebetween, a product entrance is opened at a front portion, and cool air from the circulation air passage is supplied to an upper front portion of the case. The ceiling of the inner case is formed in two stages through a punching plate that tilts forward, and a straight pipe for lighting is provided below the ceiling of the inner case by a holder. A ceiling lamp is provided in the left-right direction, and in the casing in which cooling air in the circulation air passage is blown out from the small holes of the punching plate toward the ceiling lamp, the ceiling portion of the inner case behind the ceiling lamp is provided with the cooling lamp from the cold punching plate. An open showcase with a downward-facing cold air guide plate that tilts forward so that the cold air that is blown out is bent downward and does not directly hit the ceiling lamp. 2. An outer case and an inner case forming an inside of a refrigerator, a circulation air passage is formed therebetween, a product entrance is opened at a front portion, and cool air from the circulation air passage is supplied to an upper front portion of the case. The ceiling of the inner case is formed in two stages through a punching plate that tilts forward, and a straight pipe for lighting is provided below the ceiling of the inner case by a holder. A ceiling lamp is provided in the left and right direction, and in a casing in which cooling air in the circulation air passage is blown out from the small hole of the punching plate toward the ceiling lamp, the cool air blown out from the cool air blow-off plate is bent downward in the refrigerator.
In order to prevent the cold air from directly blowing on the ceiling lamp, the rear wall of the lamp mounting stand is lowered obliquely from the ceiling toward the front side of the interior of the refrigerator, and the ceiling surface of the rear wall of the lamp mounting base is lowered. An open showcase in which the height of the lamp mount is higher than the front wall of the lamp mount, the mounting surface of the lamp mount is inclined toward the front of the refrigerator, and a ceiling lamp is provided on this mounting surface.