JP2000270982A - Lighting device for freezer and cold storage open show- case - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lighting device for freezer and cold storage open show- case capable of preventing goods display effect from lowering when illuminance in a shop lowers, by automatically detecting the life of lamps installed in a show-case with respect to all of the plural freezer and the cold storage open show-cases in the shop, so as to enable to cope with non-lighting in a stage before such a situation occurs. SOLUTION: A plurality of open show-cases are installed in a shop, and a plurality of lighting lamps 3, 5, 12 are installed for lighting respective shelves within the cases. In such a case, an inverter stabilizer 11 for lighting each of illuminating lamps 3, 5, 12 of each freezers an the cold storage open show cases is connected through a signal line to an alarm device 13 having an alarm lamp for informing the life of each of the illuminating lamps 3, 5, 12.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lighting apparatus for a refrigerator-freezer open showcase installed in a store.

[0002]

2. Description of the Related Art For example, a plurality of freezer / refrigerated open showcases are installed in a supermarket or the like.
As shown in the figure, the showcase main body 1 having an opening for taking out a product at the front is constituted by a heat insulating wall, and the inside of the showcase main body 1 is divided into a product storage 15 and a cool air circulation duct 16 by a duct plate 14, and A plurality of display shelves 6, 7, 8, 9, and 10 are arranged in the storage 15.

In such a freezer and refrigerated open showcase, a canopy lighting lamp 3 is installed as a lighting lamp for illuminating the inside of the refrigerator at the lower end of a canopy portion 2 protruding forward from a ceiling portion 4 of the showcase body 1. At the lower part of the front part of the ceiling part 4, a ceiling lighting lamp 5 is installed,
In addition, illumination lamps 12 for the shelves are also provided at the lower end of the display shelves 6 to 9, respectively.

Then, the uppermost display shelf 6 is illuminated by the canopy illumination lamps 3 and the ceiling illumination lamps 5, and the other middle display shelves 7 to 9 and the lowermost display shelf 10 are displayed on each display shelf. Illumination is performed by illumination lamps 12 for shelves installed at the lower portions of the tips 6 to 9.

The illumination lamps 3, 5, and 12 are, for example, fluorescent lamps of a straight tube having the same power and are connected to an inverter ballast 11 installed in the canopy section 2 and are turned on by the inverter ballast 11.

The lighting lamps 3, 5, and 12 connected to the inverter ballast 11 have a limited life, and it is determined that the lighting lamps 3, 5, and 12 start to flicker while the lighting lamps 3, 5, and 12 are on.
Alternatively, when the light does not turn on even when the power is turned on, a clerk or the like visually checks this and determines that the life has expired.

[0007]

SUMMARY OF THE INVENTION Illumination lamps 3, 5, 1
Since the abnormality of No. 2 was visually detected by a worker such as a clerk, especially in the case of non-lighting, the light was turned off due to the presence of other normally illuminated lamps. If you don't see the moment, you often don't notice. In addition, since such a visual determination is made during the opening of the store, if not noticed, the state will continue as it is during the opening of the store, the illuminance in the store will decrease, and the effect of displaying products will be impaired. It will also be.

[0008] An object of the present invention is to solve the above-mentioned disadvantages of the prior art, and to automatically extend the life of the illumination lamps installed in a plurality of freezer and refrigerated open showcases installed in a store. Refrigeration open show that can detect the situation and prevent it from happening before a situation such as non-lighting occurs, preventing the illuminance in the store from lowering and impairing the effect of product display An object of the present invention is to provide a lighting device for a case.

[0009]

In order to achieve the above object, the present invention firstly comprises a plurality of illumination lamps installed in a store and illuminating display shelves arranged in a plurality of stages in a store. In the provided freezer / refrigerated open showcase, a ballast for lighting each lighting lamp of each freezer / refrigerated open showcase was connected to an alarm device provided with an alarm lamp for reporting the life of each lighting lamp via a signal line. Accordingly, when each lamp reaches the end of its life, an alarm device is activated by an output from the ballast in advance, and the alarm lamp is turned on. Therefore, the lighting of the alarm lamp indicates that the life of the illumination lamp has reached the end of its life, and it is possible to cope with this by replacing the lamp with a new lamp before the lamp becomes unlit.

Second, since the ballast has a function of reporting the life of the lighting lamp, it is only necessary to connect an alarm device to the ballast connected to the lighting lamp. Therefore, it is not necessary to connect special parts separately.

Third, since the ballast is an inverter ballast, the lighting lamp can be lit brightly with power consumption almost the same as when a normal ballast is used at a normal output, and the power consumption increases. The minutes can be extremely reduced.

[0012]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a control block diagram of an illuminating device for a refrigerated open showcase of the present invention. The entire configuration of the refrigerated open showcase in which the present invention is implemented is as described above with reference to FIG. Detailed description is omitted.

Also in the present invention, a plurality of display shelves 6 are provided in a product storage 15 formed in the showcase main body 1.
7, 8, 9 and 10 are provided. As a lighting lamp for illuminating the inside of the refrigerator, a lighting lamp 3 for a canopy is provided at a lower end of a canopy portion 2 protruding forward from a ceiling portion 4 of the showcase body 1. The ceiling lighting lamps 5 are installed at the lower part on the front side of the ceiling 4, and the lighting lamps 12 for the shelves are also installed at the lower ends of the display shelves 6 to 9.

The illumination lamps 3, 5, 12
Is composed of, for example, a fluorescent lamp having a straight pipe and the same power, and is connected to an inverter ballast 11 installed in the canopy section 2.
V) Connected to power supply 17. Here the inverter ballast 1
1 rectifies a commercial AC 200 V current and converts it into a DC power supply. This DC power supply is converted into a high-frequency power supply and supplied to the illumination lamps 3, 5 and 12.

In this manner, each of the plurality of open / closed refrigerated showcases installed in the store has an inverter stabilizer 11
Are connected to the illumination lamps 3, 5, and 12.

On the other hand, an alarm device 13 provided with an alarm lamp is installed in an office or the like in a store, and a plurality of inverter stabilizers 11 for each of the refrigerated open showcases are connected to the alarm device 13 via signal lines. . Here, the inverter ballast 11 has a notification function of reading the total lighting time of the illumination lamps 3, 5, 12, and detecting the total lighting time when the total lighting time reaches a useful time (lifetime), and outputting the same to the alarm device 13. And

Next, a method for detecting an abnormality of the illumination lamps 3, 5, and 12 in each freezer and refrigeration open showcase will be described with reference to the flowchart of FIG. Lighting lamps 3, 5,
12 is energized and turned on to illuminate the displayed goods in the goods storage 15, this lighting time is detected by the inverter ballast 11, and the total lighting time of each lighting lamp 3, 5, 12 is read [step (I)〕.

Next, the total lighting time is compared with the time set as the service time (lifetime lighting time) of the illumination lamps 3, 5, and 12 (step (b)), and the total lighting time is calculated as the service time (lifetime). If it is longer than the lighting time, an alarm signal is output from the inverter ballast 11 to the alarm device 13 via the signal line [step (c)]. The alarm device 13 receives this signal and turns on an alarm lamp provided for the signal.

Therefore, a clerk in the office or the like sees the lighting of this alarm lamp and knows that the illumination lamps 3, 5, and 12 have reached the end of their useful life (lifetime illumination time). This is dealt with by replacing it with a new one at a stage before the lamp 12 becomes unlit. Thus, it is possible to avoid a situation where the lighting lamps 3, 5, and 12 reach the end of their life and become unlit when the clerk does not notice.

As a result of comparing the total lighting time and the service life (lifetime lighting time) in the step (b), if the total lighting time is shorter than the service life (lifetime lighting time), this comparison is made. Is repeated.

[0021]

As described above, the illuminating device for a freezer and refrigerated open showcase of the present invention firstly illuminates a plurality of display shelves installed in a store and arranged in a plurality of stages in the store. In a refrigerated open showcase provided with a plurality of lighting lamps to perform, a ballast for lighting each lighting lamp of each refrigerated open showcase is provided with an alarm lamp for notifying the life of each lighting lamp via a signal line. When each lighting lamp reaches the end of its life due to the connection to the device, the alarm device is activated by the output from the ballast in advance, and the alarm lamp is turned on. Therefore, it turns out that the lighting lamp has reached the end of its life by turning on this alarm lamp.
This can be dealt with by replacing the lamp with a new one before the lamp is turned off, and it is possible to prevent the lamp from suddenly turning off during the opening of the store, thereby reducing the illuminance in the store and impairing the effect of displaying products.

Second, since the ballast has the function of reporting the life of the lighting lamp, it is only necessary to connect an alarm device to the ballast connected to the lighting lamp. Therefore, it is not necessary to connect special parts separately.

Third, since the ballast is an inverter ballast, the illumination lamp can be lit brightly with almost the same power consumption as when a normal ballast is used at a normal output, thereby increasing power consumption. The minutes can be extremely reduced.

[Brief description of the drawings]

FIG. 1 is a control block diagram showing an embodiment of a lighting device for a freezer and refrigerated open showcase of the present invention.

FIG. 2 is a flowchart showing a notification operation of the lighting device for a freezer and refrigerated open showcase of the present invention.

FIG. 3 is a vertical sectional side view of a freezing and refrigeration open showcase.

[Explanation of symbols]

1. Showcase body, 2. Canopy part,
DESCRIPTION OF SYMBOLS 3 ... Lighting lamp, 4 ... Ceiling part, 5 ... Lighting lamp, 6, 7, 8, 9, 10 ... Display shelf, 11 ... Inverter stabilizer, 12 ... Lighting lamp, 13 ... Alarm device, 14 ... Duct plate, 15 … Commodity storage,
16 ... Cold air circulation duct, 17 ... AC power supply, 1
8… Product storage

Continued on the front page F term (reference) 3B110 FA02 HA08 HA17 JA00 3K072 AA02 BA03 CA16 DB03 EA01 EB10 GB01 3L045 AA02 BA01 CA02 DA01 GA07 HA01 LA01 LA18 MA10 PA03 PA04

Claims (3)

[Claims] 1. A refrigerated open showcase provided with a plurality of lighting lamps for illuminating each of a plurality of display shelves arranged in a store and installed in a store, wherein each of the refrigerated open showcases is provided for each of the refrigerated open showcases. An illumination device for a freezer and refrigerated open showcase, wherein a ballast for lighting the illumination lamp is connected to an alarm device provided with an alarm lamp for notifying the life of each illumination lamp via a signal line. 2. The lighting device according to claim 1, wherein the ballast has a function of reporting the life of the lighting lamp. 3. The lighting device according to claim 1, wherein the ballast is an inverter ballast.