JP2008295533A - Showcase - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a showcase capable of easily achieving appropriate illumination according to merchandise displayed inside a display chamber. <P>SOLUTION: The showcase 1 includes the display chamber 11 for displaying the merchandise and a plurality of illuminating devices 38 for illuminating the inside of the display chamber 11. The illuminating device comprises a white LED 41 for emitting white light and a shade 42 constituting a light transmissive color rendering means for adding the color rendering property to irradiation light from the white LED 41, and illumination by the light of the appropriate color rendering property according to the displayed merchandise is executed. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a showcase provided with a display room for displaying products and a lighting device for illuminating the display room.

  Conventionally, this type of showcase, for example, as shown in Patent Document 1, by discharging cool air from the discharge port formed at the upper edge of the opening of the heat insulating wall having a substantially U-shaped cross section toward the suction port at the lower edge of the opening, An air curtain is formed in the opening, and the display chamber surrounded by the heat insulating wall is cooled to a predetermined temperature. A plurality of fluorescent lamps are attached to the outside of the upper edge of the opening or both sides of the opening and the bottom of the shelf to illuminate the display room and the showcase itself.

  Usually, a fluorescent lamp is used as an illuminating device that cools the interior of the cabinet as shown in Patent Document 1 and illuminates the products displayed in the cooling environment. As the fluorescent lamp, for example, FL4, FL6, FL8, FL10 and the like according to JIS (Japanese Industrial Standards) C7601 are adopted, and each of them has an elongated cylindrical shape. Therefore, the fluorescent lamp is attached by being locked to a holder attached to the display chamber side.

  When the AC power supply AC is turned on, the fluorescent lamp causes the starter to conduct for a certain period of time and allows a current to flow through the filament of the fluorescent lamp. And after a filament is heated, a ballast applies a high voltage between filaments by interrupting a starter. This high voltage causes a discharge between both filaments, which causes the fluorescent lamp to emit light. Once emitted, the fluorescent lamp continues to emit light by the ballast.

  An object that emits light by itself such as a fluorescent lamp, that is, a light source, has a different light emission color, and can express a light source color by a color temperature (K: Kelvin). For example, the fluorescent lamp has a white color, white white color, etc., 4000K to 7000K, the halogen bulb has about 3200K, and the bulb has about 2800K. In general, light emitted from a material having a low color temperature is red, and becomes white as the color temperature becomes higher, and becomes blue when the color temperature becomes higher. Therefore, the light emitted from the light bulb is reddish, and the halogen light bulb has a white temperature higher than that of the light bulb.

In recent years, by combining various light emissions created from artificial light such as fluorescent lamps, light is concentrated in the three wavelength regions of blue, green, and red, which have a strong color vision response, thereby improving illuminance and color rendering. Fluorescent lamps are being developed. That is, by using a fluorescent lamp in which more light is concentrated in the red wavelength region for illumination of the display room in the showcase, it is possible to produce a product such as meat displayed in the display room in a red color. In addition, by using a fluorescent lamp in which more light is concentrated in the green wavelength region for illumination of the display room, it is possible to produce products such as blue objects displayed in the display room in a greener manner.
JP-A-5-317146

  However, in stores such as supermarkets, even if vegetables, meat, and seafood are displayed, multiple showcases of the same type are installed for versatility. Therefore, in order to effectively illuminate the products displayed in the display room of the showcase, it is necessary to select and install a fluorescent lamp having color rendering properties according to the type of the product.

  Therefore, there is a problem that the store must have a plurality of types of fluorescent lamps that can realize color rendering properties according to the type of product. In addition, if the dedicated fluorescent lamps are not used, the color rendering properties of the fluorescent lamps may have an adverse effect on the product display. Therefore, in order to obtain an appropriate color rendering effect, there have been problems that cost increases and lighting management work becomes complicated.

  Therefore, the present invention has been made to solve the conventional technical problems, and provides a showcase capable of easily realizing appropriate lighting in accordance with products displayed in a display room.

  The showcase of the present invention includes a display room for displaying commodities and a lighting device for illuminating the display room. The lighting device includes a white LED that emits white light and light emitted from the white LED. And a translucent color rendering means for adding color rendering.

  The showcase according to a second aspect of the present invention is characterized in that, in the above invention, the color rendering means is a detachable shade covering the white LED.

  According to the present invention, in a showcase provided with a display room for displaying merchandise and a lighting device for illuminating the display room, the lighting device includes a white LED that emits white light and a color rendering for the irradiation light from the white LED. Because it is composed of translucent color rendering means that adds color, the light emitted from the white LED is added with color rendering in the process of passing through the color rendering means, and is thus suitable for products displayed in the display room. It is possible to illuminate the product with irradiation light having color rendering properties of different colors.

  Therefore, it is possible to effectively produce the displayed product using the lighting device. In addition, according to the present invention, it is possible to realize effective illumination of a product with irradiation light having color rendering properties without using a special colored illumination means, thereby reducing production costs and simplifying a control device. Can be realized.

  Further, according to the invention of claim 2, in the above invention, since the color rendering means is a detachable shade covering the white LED, it is provided with a plurality of shades that add different color rendering properties, and these are displayed in the display room. It is possible to easily illuminate the display room with irradiation light having a color rendering property corresponding to the product displayed in the display room.

  Accordingly, versatility can be expanded, and effective lighting according to each product can be realized.

  Next, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a perspective view of a showcase 1 of the present invention, and FIG. 2 is a longitudinal side view of the showcase 1. The showcase 1 of the present invention includes a heat insulating wall 2 having a substantially U-shaped cross section and side plates 3 and 3 attached to both sides of the heat insulating wall 2. A partition plate 4 is attached to the inside of the heat insulation wall 2 with a space between each other, and an inner and outer two-layer duct (not shown) is formed between the partition plate 4 and the heat insulation wall 2. In front of the lower end of the partition plate 4 constituting the inner partition plate, a deck pan 9 is attached with a gap for the duct between the bottom wall 2A of the heat insulating wall 2 and these partition plate 4 and deck pan 9 are attached. The display room 11 is inside.

  In the display chamber 11, the height and the mounting angle can be changed, and there are a plurality of a pair of brackets 31 attached to a column (not shown) on the back of the display chamber 11 and a plurality of shelf plates 32 that constitute a shelf together with the brackets 31. It is erected across the steps. A price rail 34 molded from hard synthetic resin is attached to the front edge of the shelf board 32, and the price rail 34 also serves as a decorative body for the shelf board 32. Further, a predetermined interval is formed between the front wall of the shelf board 32 and the price rail 34, and a guard 35 for preventing the products on the shelf board 32 from falling is provided at the interval. It is attached.

  An inner layer discharge port 16 and an outer layer discharge port 17 to which honeycomb materials 13 and 14 are respectively attached are arranged in parallel at the upper edge of the front opening 12 of the heat insulating wall 2, and these discharge ports 16 and 17 are connected to the inner layer duct and the inner layer discharge port, respectively. Each communicates with the outer duct. Further, an inner layer suction port 18 and an outer layer suction port 19 are arranged in parallel at the lower edge of the opening 12.

  On the other hand, a plurality of blowers (not shown) corresponding to the inner layer duct and the outer layer duct are installed on the bottom wall 2 </ b> A of the heat insulating wall 2 at the lower rear part of the deck pan 9. A cooler 27 of a cooling device is vertically installed in the inner layer duct behind the partition plate 4. When a blower corresponding to the inner layer duct is operated, the cold air exchanged with the cooler 27 rises in the inner layer duct. And discharged from the inner layer discharge port 16 toward the inner layer suction port 18. And the cold air sucked from the inner layer suction port 18 is accelerated again by the blower.

  On the other hand, when the blower corresponding to the outer layer duct is operated, the air in the outer layer duct is raised in the outer layer duct and discharged from the outer layer discharge port 17 toward the outer layer suction port 19. Then, the air sucked from the outer layer suction port 19 is accelerated again by the blower. Thereby, a front and rear double air curtain is formed in the opening 12, and a part of the inner cool air curtain is circulated in the display chamber 11 to cool the display chamber 11.

  Next, with reference to FIG.2 and FIG.3, the structure of the top wall 2B front part of the heat insulation wall 2 is demonstrated. FIG. 3 shows a partially enlarged view of FIG. A canopy 33 projecting forward is attached to the front end (upper front end) of the ceiling wall 2B of the heat insulating wall 2, and the canopy 33 extends inside the front opening 12 of the display chamber 11 inside. A reflector 20 is attached.

  The reflecting plate 20 is made of a metal plate to which a decorative coating is applied, and an illumination mounting portion 21 that is recessed in the longitudinal direction is formed at the front portion. The illumination attachment portion 21 opens toward the front opening 12 of the display chamber 11 located at the lower rear side.

  And the surface corresponding to the said opening of this illumination attachment part 21 is made into the illumination attachment surface 21A, and is the angle which faces the front opening 12 of the display chamber 11 from the upper front, ie, the display chamber 11 direction back diagonally downward. An illumination device 38 that uses a light emitting diode (hereinafter referred to as LED) as a light source is attached to the illumination attachment surface 21A.

  The illuminating device 38 in the present embodiment includes a plurality of white LEDs 41 arranged on a rectangular substrate 40 as shown in the schematic configuration explanatory diagram of the illuminating device 38 in FIGS. 3 and 4 and a detachable covering the white LEDs 41. And a shade (color rendering means) 42. The white LED 41 is an LED that emits white light LW. In this embodiment, for example, a near-ultraviolet LED-based white LED using a white phosphor or a blue LED light source passes through a yellow phosphor to emit white light. It is comprised by the white LED which enables this. In addition, the white LEDs 41 may be arranged in a single row or two or more rows in front and back, and in this embodiment, the white LEDs 41 are provided in a single row. In the present embodiment, since the front opening 12 of the showcase 1 is formed to extend 6 scales (about 1830 mm), about 108 white LEDs 41 are used.

  And the shade 42 is attached to the white LED 41 and the substrate 40 so as to surround the light irradiation side, and is covered therewith. The shade 42 is made of a translucent material, for example, a translucent hard synthetic resin. In order to add color rendering to the light emitted from the white LED 41, a part of the light from the LED 41 is used. A phosphor that absorbs itself and emits colored light, or a colorant that colors the irradiation light itself from the white LED 41 is applied to the shade 42 by being applied or contained in the material itself.

  In the present embodiment, the shade 42 is formed to have a size that allows a plurality of white LEDs 41 provided in a row to be covered with a single component in accordance with the width of the front opening 12, and to the illumination device 38. It is detachable.

  In this embodiment, in order to realize color rendering illumination according to the products displayed in the display room 11, the shade 42 is a transmission that emphasizes the color rendering of red from a plurality of types, for example, light emitted from the white LED 41. The red color rendering shade 42R that forms the light LR, the green color rendering shade 42G that forms the transmitted light LG that emphasizes the green color rendering from the light emitted from the white LED 41, and the white that forms the white transmitted light LW. A shade 42W is provided. Note that the color of the transmitted light by the shade 42 is not limited to this, and any light that emphasizes color rendering properties that can effectively illuminate the products displayed in the display room 11 can be used. It may be a color.

  With such a configuration, when the product displayed in the display room 11 is, for example, meat or red vegetables such as tomatoes, a red color rendering shade 42R is attached to the white LED 41 of the lighting device 38. , Perform product lighting.

  Accordingly, as shown in FIG. 5, in the lighting device 38, the white light emitted from the white LED 41 is added with a red color rendering property in the process of passing through the red color rendering property shade 42 </ b> R, thereby displaying in the display chamber 11. It is possible to illuminate the product with the irradiation light LR in which the color rendering properties suitable for the product to be emphasized are emphasized. Therefore, it is possible to make red vegetables such as meat and red vegetables such as tomatoes appear more red by performing color rendering illumination in which the red color is emphasized.

  On the other hand, when the product displayed in the display room 11 is, for example, a green product such as a vegetable, a green color rendering shade 42G is attached to the white LED 41 of the lighting device 38, and the product is illuminated. .

  Accordingly, as shown in FIG. 6, in the lighting device 38, the white light emitted from the white LED 41 is added with green color rendering in the process of passing through the green color rendering shade 42 </ b> G, thereby displaying in the display room 11. It is possible to illuminate the product with the irradiation light LG in which the color rendering properties of the color suitable for the product to be emphasized are emphasized. Therefore, by performing color rendering illumination in which the green color is emphasized, it becomes possible to make a blue object such as a vegetable appear more bluish.

  In addition to the above embodiment, for example, when a blue color rendering shade that forms a bluish transmitted light from the light emitted from the white LED 41 is used, the light transmitted through each of the red color rendering shades 42R is used. As in the case of illuminating with the light transmitted through the green color rendering shade 42G, it is possible to illuminate the display chamber 11 with the light with the blue color transmitted through the blue color rendering shade enhanced. In this case, for example, it is possible to make the seafood look more fresh.

  Thereby, it becomes possible to produce effectively the goods displayed by the illuminating device 38. Further, in this case, since it is possible to realize effective illumination of the product by irradiation light having color rendering properties without using special colored illumination means, for example, a red LED or a green LED, the production cost can be reduced. Reduction can be realized. In addition, by controlling the energization current to a plurality of types of colored lighting means (color rendering LEDs), it is not necessary to provide a control device or the like for a specific color rendering illumination, and the apparatus can be simplified. Can be realized.

  In this embodiment, the color rendering means for adding color rendering properties to the light emitted from the white LED 41 is constituted by the shade 42, so that the light emitted from each of the white LEDs 41 is entirely reflected by the shade 42. It is possible to illuminate the inside of the display room 11 in a diffused state, and it is possible to eliminate the inconvenience that the irradiation light from the white LED 41 becomes spotted and the inside of the display room 11 is illuminated.

  In this embodiment, the shade 42 is detachably attached in such a manner that the white LED 41 and the substrate 40 to which the white LED 41 is attached are covered from the light irradiation side, so that the color rendering can be easily performed by attaching and detaching the shade 42. It is possible to realize illumination with added characteristics and illumination without color rendering.

  Therefore, in one showcase 1, a portion that performs illumination with color rendering and a portion that performs illumination without color rendering can be selectively used by attaching and detaching the shade 42 according to the needs of the user. Therefore, appropriate color rendering illumination can be performed.

  In the present embodiment, the shade 42 is formed in a size that allows a plurality of white LEDs 41 provided in a row to be covered with a single component according to the width of the front opening 12, but is not limited thereto. Instead, the shade 42 may be constituted by a plurality of parts, and the shade 42 capable of performing color rendering according to the product may be attached and used only at a position corresponding to the product to be displayed.

  Further, in this embodiment, a plurality of shades 42R and 42G for adding different color rendering properties are provided, and these are configured to be replaceable according to the products displayed in the display room. It is possible to illuminate the inside of the display room 11 with the irradiation light in which the color rendering properties according to the displayed products are emphasized.

  Accordingly, versatility can be expanded, and effective lighting according to each product can be realized.

  In this embodiment, when the interior of the display room 11 is illuminated with light having no color rendering properties, a white shade 42W that forms white transmitted light LW is used instead of the shades 42R and 42G that add color rendering properties. It may be attached.

  Accordingly, as shown in FIG. 7, the white irradiation light emitted from the white LED 41 is transmitted through the white shade 42W, so that the light emitted from each of the white LEDs 41 is totally diffused by the shade 42W. It becomes possible to illuminate the inside of the display room 11 in the state of being made to do. Therefore, it is possible to eliminate the inconvenience that the illumination light from the white LED 41 becomes spotted and the interior of the display chamber 11 is illuminated, and the interior of the display chamber 11 can be illuminated by the uniform white illumination light LW.

  In the present embodiment, the white LED 41 and the substrate 40 are configured by a shade 42 that covers the white LED 41 and the substrate 40 from the light irradiation side as color rendering means for adding color rendering properties to the irradiation light from the white LED 41. However, the present invention is not limited to this. The same effect can be obtained even if the color rendering properties are added to the irradiation light from the white LED 41 by using a colored transparent film or the like, in which each individual white LED 41 itself is configured in substantially the same manner as the shade 42.

  Further, in the present embodiment, the lighting device 38 is described as an example attached to the inside of the canopy 33, but is not limited thereto, for example, the front lower surface of the shelf 32. A lighting device configured in substantially the same manner as the lighting device 38 between the front end of the deck pan 9 and the suction port 18 and a surface facing the display chamber 11 of the handrail constituting the lower edge of the opening 12 of the heat insulating wall 2 It is also possible to effectively illuminate the products displayed in the display room 11 by providing the above.

It is a perspective view of a showcase. It is a vertical side view of a showcase. FIG. 3 is a partially enlarged view of FIG. 2. It is schematic structure explanatory drawing of an illuminating device. It is a figure which shows the illumination state of the illuminating device of red color rendering property. It is a figure which shows the illumination state of the illuminating device of green color rendering property. It is a figure which shows the illumination state of the illuminating device when there is no color rendering.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Showcase 2 Heat insulation wall 11 Display room 12 Front opening 20 Reflector 21 Illumination attachment part 21A Illumination attachment surface 32 Shelf 33 Canopy 38 Illumination device 40 Substrate 41 White LED
42 Shade (color rendering means)
42R Red color rendering shade 42G Green color rendering shade 42W White shade

Claims (2)

In a showcase provided with a display room for displaying products and a lighting device for illuminating the display room,
The illumination device includes a white LED that emits white light, and a translucent color rendering unit that adds color rendering to the light emitted from the white LED.   The showcase according to claim 1, wherein the color rendering means is a detachable shade that covers the white LED.

Images