JPH0588372U - Cold or frozen multi-stage open showcase - Google Patents

Abstract

(57) [Summary] [Purpose] You can write the entire case in good balance,
We provide a multi-stage open showcase that makes it easy to see the products on display shelves. [Composition] A plurality of intermediate shelves are provided, and the uppermost display shelves 6 among these intermediate shelves are illuminated by a canopy illumination lamp 3 and a ceiling illumination lamp 5, and the remaining middle shelves 7, 8, 9 and In a multi-stage open showcase configured to illuminate the lowermost display shelf 10 with a shelf lighting lamp 12 installed at the lower end of an intermediate shelf, an inverter ballast 13 for lighting the shelf lighting lamp 12 and the inverter ballast 1
3 outputs a dimming signal to the illuminance of the uppermost display shelf surface 6a and the remaining middle and lowermost display shelf surfaces 7a, 8a, 9a,
Lighting lamp 12 for shelves so that the illuminance of 10a is uniform
And a dimmer 15 for dimming.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a refrigerating or freezing multi-stage open showcase, and more particularly to an open showcase capable of lighting each display shelf with a good balance of brightness.

[0002]

[Prior Art]

 In a refrigerated or frozen multi-tiered open showcase, the entire showcase needs to be lit with appropriate brightness in order to enhance or give a fresh impression to the products displayed on the shelves.

FIG. 3 shows a layout of lights in a conventional multi-stage open showcase. In this figure, a canopy lighting lamp 3 is installed in a canopy portion 2 protruding from a ceiling portion 4 of a showcase body 1 to the front side, and a ceiling lighting lamp 5 is installed in the ceiling portion 4. There is. A scattering plate 17 made of a honeycomb plate or a lattice plate for scattering illumination light is attached to the lower surface of the ceiling illumination lamp 5. The canopy illumination lamp 3 and the ceiling illumination lamp 5 which are straight tube fluorescent lamps are lit by a ballast 11 provided in the canopy portion 2.

[0006] Furthermore, at the lower end of each of the four display shelves 6, 7, 8 and 9 provided in the middle tier, a shelf lighting for illuminating each of the display shelves 7, 8, 9 and the lowermost display shelves 10 is provided. Each lamp 12 is installed. These shelf lighting lamps 12, which are straight tube fluorescent lamps, are turned on by a ballast 20 provided at the lower part of the front side of the case body 1. In the conventional multi-stage open showcase, fluorescent lamps of the same wattage are used for the canopy lighting lamp 3, the ceiling lighting lamp 5, and the shelf lighting lamp 12, respectively, and the respective lighting lamps 3, 5, 12 have the same brightness. It was lit.

[0005]

[Problems to be solved by the device]

 As described above, in the conventional multi-stage open showcase, the respective illumination lamps 3, 5, 12 are lit with the same brightness, and the display shelf 6 on the uppermost stage is provided with the canopy illumination lamp 3 and the ceiling illumination lamp 5. The display shelves 7, 8, 9, 10 in the middle and the bottom are close to the shelf lighting lamps 12 mounted on the upper shelves, so that the display shelves 6a in the top are far from each other. The illuminance on the display shelves 7a, 8a, 9a, 10a in the middle and bottom rows was extremely high, and the brightness of the entire showcase was unbalanced.

In the middle and bottom display shelves 7, 8, 9, and 10 where the illuminance is very bright, the wrap 16a that wraps the product pack 16 is reflected to make the product hard to see, and the fluorescent lamp is strong. There was a problem that the light colored the product on the thigh. The arrow P indicates the reflected light from the product.

The present invention has been proposed in order to solve the problems of the conventional techniques, and provides a multi-stage open showcase that can light the entire case in a well-balanced manner and make it easy to see the products on the display shelf. The purpose is to do.

[0008]

[Means for Solving the Problems]

 In order to achieve this purpose, the multi-stage open showcase according to the present invention has a plurality of intermediate shelves, and the uppermost display shelf among these intermediate shelves is illuminated by a canopy illumination lamp and an aluminium illumination lamp. In a multi-stage open showcase configured to illuminate the middle display shelf and the bottom display shelf with a shelf lighting lamp installed at the tip of the lower surface of the intermediate shelf, an inverter ballast that lights the above shelf lighting lamp and this A dimming signal is output to the inverter ballast and the above-mentioned shelf lighting lamp is dimmed so that the illuminance on the top display shelf surface and the illuminance on the remaining middle and bottom display shelf surfaces are uniform. And an optical device.

[0009]

[Action]

 According to the above-mentioned configuration, the dimming signal is sent from the dimmer to the inverter ballast that lights up the shelf lighting lamp, so that the shelf lighting lamp can be lit slightly darkly.

As a result, the illuminance of the top display shelf surface and the illumination of the remaining middle and bottom display shelf surfaces can be made to be the same, and the entire showcase can be illuminated with a well-balanced brightness. ..

[0011]

【Example】

 Hereinafter, a concrete embodiment of a refrigerating or freezing multi-stage open showcase according to the present invention will be described in detail with reference to the drawings.

FIG. 1 shows a layout of lights in a multi-stage open showcase of, for example, a middle four-stage type. In this figure, a canopy portion 2 is provided with a canopy illumination lamp 3, and a ceiling portion 4 is provided with a ceiling illumination lamp 5 for illuminating an uppermost display shelf 6. These illumination lamps 3 and 5 which are straight tube fluorescent lamps are lit by a ceiling ballast 11 provided in the canopy portion 2.

Further, a shelf lighting lamp 12 for illuminating the middle display shelves 7, 8, 9 and the lowermost display shelf 10 is installed at the lower end of each intermediate shelf. These shelf lighting lamps 12, which are straight tube fluorescent lamps, are lighted slightly by a shelf inverter ballast 13 provided at the lower part of the front surface of the showcase body 1.

FIG. 2 shows a block diagram of a lighting circuit for lighting these illumination lamps. In this figure, a canopy lighting lamp 3 and a ceiling lighting lamp 5 are connected to a ceiling ballast 11 to which a commercial AC power supply AC is supplied, and the lighting lamps 3 and 5 are turned on by the ballast 11. ..

In addition, a shelf lighting lamp 12 in which a starting capacitor 14 is connected in parallel is connected to each inverter ballast 13 to which the commercial AC power supply AC is supplied, and each dimmer 15 connects each inverter ballast 13 to each inverter ballast 13. The dimming signal S1 is supplied. Here, in the inverter ballast 13, the commercial AC power supply AC is rectified to produce a DC power supply, and this DC power supply is converted into a high frequency power supply and supplied to the shelf lighting lamp 12. Further, the lighting output of the shelf lighting lamp 12 is set to a dimming ratio of 80 to 85% when the brightness of the canopy lighting lamp 3 and the ceiling lighting lamp 5 is set to 100% (all light lighting). It is controlled by a dimming signal.

In the multi-stage open showcase configured as described above, the brightness of the shelf lighting lamp 12 is set to be slightly dark so that the illuminance of the uppermost display shelf surface 6a and the middle and lowermost display shelf surfaces 7a, The illuminances of 8a, 9a, and 10a can be the same, and the entire interior of the showcase can be illuminated with a well-balanced brightness.

As a result, there is no reflection from the wrap 16a of the product pack 16 and the entire product can be viewed easily. The ceiling ballast 11 may be configured using an inverter ballast. Further, the present invention can be applied not only to an open showcase with four intermediate shelves but also to other open showcases.

[0018]

[Effect of the device]

 As described above, according to the present invention, the shelf lighting lamp is made slightly darker than the canopy lighting lamp and the ceiling lighting lamp so that the entire interior of the showcase can be lit in a well-balanced manner. There is no reflection from the wraps of various product packs, which makes it easier to see the product and prevents the thigh color of the product. Further, by making the shelf lighting lamp dark, an energy saving effect can be obtained.

[Brief description of drawings]

FIG. 1 is a vertical sectional view showing an arrangement of lights in a multi-stage open showcase according to the present invention.

FIG. 2 is a block diagram showing a lighting circuit of each illumination lamp in the multi-stage open showcase of FIG.

FIG. 3 is a vertical cross-sectional view showing an arrangement of lights in a conventional multi-stage open showcase.

[Explanation of symbols]

 1 Showcase main body 2 Canopy part 3 Canopy lighting lamp 4 Ceiling part 5 Ceiling lighting lamp 6 Uppermost display shelf 7, 8, 9 Middle display shelf 10 Lowermost display shelf 6a, 7a, 8a, 9a, 10a Display Shelf surface 11 Ballast for ceiling 12 Lighting lamp for shelf 13 Inverter ballast for shelf 14 Starting capacitor 15 Dimmer 16 Product pack 16a Wrap

Claims (1)

[Scope of utility model registration request] 1. A plurality of intermediate shelves are provided, and the uppermost display shelf among these intermediate shelves is illuminated by a canopy illumination lamp and a ceiling illumination lamp, and the remaining middle shelf and the lowermost shelf are displayed. In a multi-stage open showcase configured to illuminate with a shelf lighting lamp installed at the tip of the lower surface of the intermediate shelf, an inverter ballast that lights the shelf lighting lamp and a dimming signal is output to this inverter ballast, and the uppermost stage is displayed. A refrigerating or freezing multi-stage open, comprising: a dimmer that dims the above-mentioned shelf lighting lamp so that the illuminance on the display shelf surface and the illuminance on the remaining middle and bottom display shelf surfaces are uniform. Showcase.