JPH0593318U - Showcase lighting equipment - Google Patents

Abstract

(57) [Summary] [Purpose] Showcase lighting that does not require special processing for the fluorescent light source, uses general specifications, eliminates restrictions when setting, and provides suitable lighting without variations. Provide the device. A device for illuminating the inside of the case main body 1 by irradiating light from a light source (fluorescent lamp 11) in a specific direction and range through a light-transmitting protective cover 12 is provided.
Since the light-shielding film 13 is formed in a range excluding a part of 2 and the light of the fluorescent lamp 11 is emitted only from a part of the protective cover 12, the light source has a standard size generally used. Therefore, there are no restrictions such as the direction when setting.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a lighting device particularly suitable for lighting the interior of a multi-stage low temperature open showcase.

[0002]

[Prior Art]

 FIG. 3 shows a multi-stage low temperature open showcase shown as an example of a showcase. An inlet for circulating cold air is provided in the lower front part of the case, and an illumination device is arranged near this inlet to display in a warehouse. A conventional structure for illuminating a product is shown. As shown in FIG. 1 as a related diagram, a plurality of shelves 2 for storing and displaying products are arranged in the case body 1, and a machine room 3 in which a cooling cycle system is installed is provided under the case body 1. It is provided. The open showcase shown in the figure has two parallel systems of cool air ventilation channels 4 and 4, and is a system in which cool air is forcibly circulated by blowers 5 and 5 arranged in the respective ventilation channels 4 and 4. . On the front surface of the case body 1, cool air (shown by arrows in the figure) blown from the upper part of each of the ventilation passages 4 and 4 is sucked into the lower suction ports 6a and 6b, and the front surface of the case body 1 is parallel with the cool air. It is designed to form an air curtain for two cooling systems.

As shown in FIG. 3, an illuminating device is arranged near the cover 7 having the suction ports 6a and 6b, and illuminates the products displayed in the cabinet and on each shelf 2. The illuminating device has a light source such as a fluorescent lamp 8, and the fluorescent lamp 8 is housed and protected in a light-transmitting protective cover 9. The fluorescent lamp 8 is of a special specification having a light-shielding film 8a (indicated by a shaded portion) coated with a light-reflecting coating such as aluminum by vapor-depositing on a region excluding a part of the inner peripheral surface. The portion 8b to which the reflective paint is not applied is an irradiation opening at an angle α, and the irradiation is performed from this irradiation opening 8b to illuminate the inside of the refrigerator in a specific range from a specific direction.

[0004]

By the way, in the case of the conventional example shown in FIG. 3, since the fluorescent lamp 8 having the special specification with the light shielding film 8a is used, it is inconvenient to obtain and the cost is high. Besides, it does not make sense unless the irradiation angle α from the irradiation opening 8b is set in the required direction. As described above, there are restrictions on the mounting direction of the fluorescent lamp 8, and there are inconveniences such as variation in the illuminance inside the refrigerator depending on the mounting angle.

The object of the present invention is to eliminate the need for special processing of a light-shielding film for a light source such as a fluorescent lamp, to use a general specification, to eliminate restrictions during setting, and to provide suitable illumination without variations. It is to provide a lighting device for a showcase.

[0006]

[Means for Solving the Problems]

 To achieve this object, the lighting device for a showcase according to the present invention illuminates the inside of the case body by irradiating light from a light source in a specific direction and range through a light-transmitting protective cover. A light-shielding film is formed in a part of the protective cover so that the light of the light source is emitted only from a part of the protective cover.

[0007]

[Action]

 A light shielding film in a range set in advance on the protective cover is provided. The irradiation angle and direction from the light source are determined by the range where the light-shielding film is provided, and the light source may be a general-purpose one, and there is no restriction on the orientation when setting it.

[0008]

【Example】

 An embodiment of a lighting device for a showcase according to the present invention will be described below with reference to FIGS.

FIG. 1 is a partial cross-sectional side view of a multi-stage low temperature open showcase provided with the lighting device of the embodiment. Several stages of shelf boards 2 for storing and displaying products are arranged in the case body 1, and a machine room 3 constituting a cooling cycle system is provided at the bottom of the case body 1. The showcase is a system that has two parallel cooling air passages 4 and 4 and forcedly circulates the cooling air by the blowers 5 and 5 arranged in the air passages 4 and 4, respectively. A cover 7 having suction ports 6a and 6b is provided on the lower front surface of the case body 1, and cool air (shown by arrows in the figure) blown out from the upper portions of the ventilation paths 4 and 4 is supplied to the lower suction ports 6a and 6b. It is made to suck in, and two systems of air curtains by cold air are formed on the front surface of the case body 1.

As shown in FIG. 2, in the vicinity of the inlet cover 7, an illuminating device 10 of the embodiment including a fluorescent lamp 11 as a light source and a protective cover 12 is arranged to illuminate the products displayed in the warehouse. It is supposed to be sipping. The fluorescent lamp 11 has a standard size for general use. The protective cover 12 is not particularly limited to a material as long as it is light-transmissive, but if it has a heat insulating property, a decrease in illuminance due to cooling of the fluorescent lamp 11 can be prevented.

The protective cover 12 extends along the inside of the front surface of the case body 1 of the showcase, is located at the corner of the intersection with the inlet cover 7, and has a substantially L-shape that covers and protects the fluorescent lamp 11 from two sides. It has a shape and is composed of a horizontal one-sided portion 12a and a vertical one-sided portion 12b. In the embodiment, a light-shielding film 13 is provided on the inner surface of the lateral single-sided portion 12a, a part of which is coated with a light-reflecting paint. Therefore, the range in which the light from the fluorescent lamp 11 can be transmitted in the protective cover 12 is a range in which the horizontal one-sided portion 12a and the vertical one-sided portion 12b are added excluding the light shielding film 13. That is, in the case of this embodiment, the light from the fluorescent lamp 11 has the specified emission angle β, and the light from the fluorescent lamp 11 emitted at this emission angle β specifies the specific range in the refrigerator. Illuminated from the direction.

As described above, the emission angle β can be arbitrarily determined by the range of the light-shielding film 13 provided on the protective cover 12, and is set so that a specific place in the refrigerator can be appropriately illuminated from a specific direction. Is done. Therefore, the installation site and size of the light shielding film 13 are not limited to those in the illustrated example.

[0013]

[Effect of the device]

 As described above, the lighting device for a showcase according to the present invention is provided with a light-shielding film in a range preset in the protective cover for illuminating a required range in the case body, and thereby a fluorescent light source is provided. Since the irradiation angle and direction from the lamp are determined, a standard fluorescent lamp that is generally used can be used, and it is economical in terms of cost. Therefore, unlike the conventional case, the inconvenience of being restricted by the direction when setting the fluorescent lamp is eliminated, and there is no illumination variation.

[Brief description of drawings]

FIG. 1 is a partial cross-sectional side view of a multi-stage low temperature open showcase equipped with an illumination device according to an embodiment of the present invention.

FIG. 2 is a side sectional view of the lighting device of the embodiment.

FIG. 3 is a side sectional view of a conventional lighting device.

[Explanation of symbols]

1 ... Case body, 7 ... Intake port cover, 10 ... Lighting device,
11 ... Fluorescent lamp, 12 ... Protective cover, 13 ... Light-shielding film.

Claims (1)

[Scope of utility model registration request] 1. A device for illuminating the inside of a case main body by irradiating light from a light source in a specific direction and range through a light-transmitting protective cover, wherein a light-shielding film is formed in a range excluding a part of the protective cover to protect the case body. A lighting device for a showcase, characterized in that light from a light source is emitted only from a partial area of the cover.