Open showcase

Abstract

There is disclosed an open showcase provided with a light device capable of simplifying a maintenance operation and improving a cooling efficiency in a display chamber. In an open showcase 1 of the present invention, a display chamber 11 is formed in an insulating wall 2, cold air is discharged from cold air discharge ports 16, 17 provided in an upper edge of a front surface opening 12 of the display chamber11, and sucked into cold air suction ports 18, 19 provided in a lower edge of the opening 12, to form a cold air curtain in the front surface opening 12 of the display chamber 11, the open showcase includes a hand rail main body 24 provided on an upper end of a front wall 2C of the insulating wall 2 positioned outside the cold air suction ports 18, 19, a reflective plate 26 provided on the hand rail main body 24, and LED lights 40 attached to the reflective plate 26, and the inside of the display chamber 11 is illuminated with light emitted from the LED lights 40.

Description

BACKGROUND OF THE INVENTION[0001]1. Field of the Invention[0002]The present invention relates to an open showcase in which a display chamber is formed in an insulating wall to display commodities in the display chamber while cooling the commodities. More particularly, it relates to lights in the display chamber.[0003]2. Description of the Related Art[0004]Heretofore, as this type of open showcase, for example, there has been an open showcase 100 disclosed in Patent Document 1 and shown in FIG. 10. FIG. 10 shows a vertical side view of the conventional open showcase 100. In this open showcase 100, cold air is discharged from a discharge port 103 formed in an upper edge of an opening 102 of an insulating wall 101 having a substantially U-shaped section toward a suction port 104 of a lower edge of the opening 102, whereby a cold air curtain is formed in the opening 102. In consequence, the inside of a display chamber 105 surrounded with the insulating wall 101 is cooled to a predetermi...

AI Technical Summary

Benefits of technology

The present invention provides an open showcase with a light device that simplifies maintenance and improves cooling efficiency. The showcase includes a display chamber formed in an insulating wall, with cold air discharged from a cold air discharge port and sucked into a cold air suction port to form a cold air curtain in the front surface opening of the display chamber. A hand rail is provided on the front wall upper end, with LED lights attached to it to illuminate the inside of the display chamber. The LED lights are attached to a reflective portion, which helps to perform heat exchange between the LED lights and the reflective portion. This invention can effectively illuminate the whole inside of the display chamber without the need for light fixtures on the shelves, reducing power consumption and lowering cooling efficiency. The LED lights do not produce harmful ultraviolet or heat ray, and can be dimmed according to the commodities displayed. The reflective portion helps to release heat generated from the LED lights, preventing dew condensation on the hand rail and inhibiting the generation of dew condensation in the display chamber.

Problems solved by technology

In this case, a thermal loss is generated, and hence there is a problem that the inside of the display chamber 105 is heated by not only the fluorescent lamps themselves but also radiant heat of the fluorescent lamps.

In consequence, there has been a problem that steep rise of running cost is incurred.

Commodities displayed in the display chamber 105 are irradiated with an ultraviolet ray, so that there is a problem that the commodities are adversely affected.

Furthermore, the fluorescent lamps have a problem that flicker is generated owing to use of an alternating current, so that there is a problem that eyes are adversely affected.

There are problems that assembly operability is deteriorated and that increase of the number of the components and steep rise of production cost are incurred.

In actual, there is a problem that a thickness dimension of each shelf 106 is limited by the fluorescent lamp provided under the shelf 106.

Moreover, a replacement operation of the fluorescent lamps 108 is forcibly required owing to luminance decrease and light defect caused with elapse of years.

Therefore, a user is forced to perform the replacement operation of the fluorescent lamps 108, and the operation disadvantageously becomes laborious.

Furthermore, the fluorescent lamp 108 contains mercury, resulting in a problem that the used fluorescent lamp 108 cannot easily be discarded.

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