KR20080079176A - Open show case - Google Patents

Abstract

An open show case is provided to prevent an electric leakage caused by dew, by effectively lighting up the faces of articles displayed on each shelf although lighting tools are not installed at the underside of each shelf. An open show case has a show room in the insulating wall and forms the cold air curtain at a front opening of the show room by discharging the cold air from cold air ejecting ports formed at the upper edge of the front opening of the show room and sucking the cold air from cold air suction ports formed at the lower edge of the opening. The open show case is composed of a hand rail installed at the upper end of a front wall(2C) of the insulating wall positioned at the outer side further than the cold air suction port; a reflecting unit installed at the hand rail; and an LED(Light Emitting Diode) lamp(40) mounted on the reflecting unit. The light emitted from the LED lamp lights up the inside of the show room.

Description

Open Show Case {OPEN SHOW CASE}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is an open show case which constitutes a display chamber in a heat insulation wall and displays the product while cooling a product in the display chamber, and particularly relates to illumination in the display chamber.

Conventionally, in this kind of open show case, for example, there is an open show case 100 as shown in Patent Document 1 or FIG. 10 shows a longitudinal side view of a conventional open show case 100. The open show case 100 discharges cold air from the discharge port 103 formed at the upper edge of the opening 102 of the heat insulation wall 101 having a substantially inverted cross-sectional shape toward the inlet 104 of the lower edge of the opening 102. As a result, a cold air curtain is formed in the opening 102. Thereby, the inside of the display chamber 105 enclosed by the heat insulation wall 101 is cooled to predetermined temperature. In addition, a plurality of fluorescent lamps 108 are installed in the canopy located at the outer side of the upper edge of the opening 102 and the lower surface of the front side of the shelf 106, and a plurality of fluorescent lamps 108 are installed in the display room 105 and the show case 100. It was doing its own lighting.

[Patent Document 1] Japanese Patent Application Laid-Open No. 5-146346

By the way, in the conventional open show case 100, a fluorescent lamp 108 is used as a lighting device, and the fluorescent lamp 108 is placed on the upper side of the display chamber 105 or on the lower surface of the shelf 106 which is installed in the display chamber 105. Since it provided, the heat load generate | occur | produced in the display chamber 105 by the illumination by the said fluorescent lamp 108. In general, fluorescent lamps are used as illumination by converting electrical energy into visible radiation, infrared radiation and ultraviolet radiation to emit visible light. At that time, since heat loss occurs, not only the fluorescent lamp itself but also the inside of the display chamber 105 is heated by radiant heat by the fluorescent lamp.

Therefore, in the cooling showcase which cools the inside of the display chamber 105 to predetermined temperature, since cooling operation | movement considering the heat load by illumination is performed, the cooling efficiency falls. Thereby, there existed a problem which raises operating cost. In addition, since ultraviolet rays are irradiated to the products displayed in the display chamber 105, there is a problem that adversely affect the products.

In addition, because fluorescent lamps use alternating current, there is a problem that flickering occurs, and thus there is a problem that adversely affects the eyes.

In addition, in order to install the fluorescent lamp 108 in the display chamber 105, since parts, such as a socket and a ballast, are needed, it is necessary to ensure not only a fluorescent lamp but also an installation place, such as a socket and a ballast, in an installation position. In addition, wiring connection for supplying power to each fluorescent lamp has to be made, resulting in deterioration of assembly workability and increase in the number of parts and increase in production cost.

In recent years, the thickness of the entire shelf 106 tends to be thinner for the purpose of improving the display efficiency in the display chamber 105. However, in practice, the shelf is formed by a fluorescent lamp provided below the shelf 106. There was a problem that the thickness dimension of 106) was restricted.

In addition, the fluorescent lamp 108 is inevitably replaced due to a decrease in luminance due to deterioration with time or poor lighting. Therefore, the user is forced to replace the fluorescent lamp 108, which causes a problem of complicated work. It is necessary to always have a new fluorescent lamp 108 for replacement, and to secure a storage place of the fluorescent lamp 108. In addition, since mercury is contained in the fluorescent lamp 108, there is a problem that the fluorescent lamp 108 after use cannot be easily disposed.

Then, this invention is made | formed in order to solve the conventional technical subject, and it provides the open show case provided with the lighting apparatus which can simplify maintenance workability and can improve the cooling efficiency in a display room.

The open show case of the present invention constitutes a display chamber in a heat insulating wall, discharges cold air from a cold air discharge port provided at an upper edge of the front surface opening of the display chamber, and sucks it from the cold air suction port provided at the lower edge of the opening, thereby providing a front surface of the display room. It is formed by forming a cold air air curtain in the opening, and provided with a hand rail provided in the upper end of the front wall of the heat insulation wall located outside the cold air intake, a reflecting portion provided in the hand rail, and LED lighting provided in the reflecting portion, The interior of the display room is illuminated by the light emission of the LED light.

The open show case of the invention according to claim 2 is characterized in that, in the above invention, the reflector is made of a metal member, and the substrate of the LED lighting is provided so as to be capable of heat exchange with the reflector.

According to the present invention, by forming a display chamber in a heat insulating wall, by discharging the cold air from the cold air discharge port provided in the upper edge of the front opening of the display chamber, and sucked from the cold air inlet provided in the lower edge of the opening, the cold air in the front opening of the display chamber An open show case formed by forming an air curtain, comprising: a hand rail provided at an upper end of a front wall of a heat insulation wall positioned outside of a cold air inlet; a reflector provided at the hand rail; and an LED light provided at the reflector. By illuminating the display room by the light emission of the said LED illumination, it becomes possible to illuminate the whole display room effectively by LED light from the lower front of a display room.

Therefore, even if it is the structure which does not install a fluorescent lamp or other lighting fixture in the lower surface of each shelf installed in a display room, it becomes possible to illuminate the face surface of the goods displayed on each shelf effectively. This eliminates the need for lighting fixtures on each shelf, which can prevent short circuits due to dew condensation, and also eliminate the need for parts attached to lighting such as sockets for installing these lighting fixtures, thereby simplifying the shelf configuration. It becomes possible.

In addition, since the LED lighting provided in the reflecting plate can exhibit the same lighting effect as when a plurality of conventional lighting devices such as fluorescent lamps are installed in the display room, it is possible to significantly reduce the power consumption in the entire show case. It becomes possible.

In addition, since the LED light does not radiate harmful ultraviolet rays or heat rays to the goods displayed in the display room, the product can be illuminated without heating, and the LED light is installed outside the cold air curtain, so that the heat load in the display room related to the lighting can be reduced. It can be made 0, and it becomes possible to prevent the fall of the cooling efficiency of showcase itself beforehand. As a result, it is possible to reduce the overall running cost of the showcase.

In addition, it becomes possible to avoid the problem of adversely affecting the product by harmful ultraviolet rays caused by illumination. This makes it possible to display the product while keeping it in a fresher state.

Similarly to the invention of claim 1, unlike the fluorescent lamps conventionally used, LED lighting does not cause flickering, so that stable lighting can be performed and the product can be illuminated appropriately. In addition, since the dimming of the LED light 40 can be easily changed, more effective illumination is possible by changing the dimming according to the products displayed in the display chamber 11.

In addition, since the LED lamp 40 has a significantly longer service life than fluorescent lamps, it is unnecessary to replace the lamps. Therefore, complicated work, such as waste disposal discharged at the time of replacement of a spare part or replacement, can be made unnecessary.

According to the invention of claim 2, in the invention, the reflector is made of a metal member and the substrate of the LED lighting is provided so as to be heat exchanged with the reflector, so that the arrangement generated from the substrate of the LED is transmitted to the reflector. The heat dissipation effect by the reflecting portion can be obtained.

Thereby, in the reflection part provided in the hand rail provided near the cold air intake port, the heat | fever which generate | occur | produces dew condensation which is easy to generate condensation can be heated by releasing the heat | fever which generate | occur | produces from the board | substrate of LED lighting, and the dew condensation to a hand rail is generated. Can be suppressed.

EMBODIMENT OF THE INVENTION Next, embodiment of this invention is described in detail with reference to drawings. Fig. 1 is a perspective view of the open show case 1 to which the present invention is applied, and Fig. 2 is a longitudinal side view of the open show case 1 of Fig. 1, respectively. The open show case 1 is, for example, a vertical open show case installed in a store such as a supermarket, and has a heat exchange wall 2 having a substantially inverted cross-sectional shape open to the front surface and a heat insulation wall at an installation site. It is comprised by the heat insulation side plates 5 and 5 provided in the side surface of (2).

Inside the heat insulation wall 2 of the open show case 1, a partition plate 4 and another partition plate not shown are provided at intervals, respectively, between these partition plates 4 and the heat insulation wall 2. The inner and outer two-layer duct which is not shown in figure is formed. The bottom plate 9 is provided at the front of the lower end part of the back part partition plate which comprises an inner partition board at intervals for ducts between the bottom wall 2A of the heat insulation wall 2, and these partition plates 4 ) And the inside of the bottom plate 9 are used as the display chamber 11.

Moreover, the height and installation angle can be changed in this display room 11, and the pair of brackets 31 installed in the support column which is not shown in the back part of the display room 11, and the shelf board which comprises a shelf with these are shown. (32) is hypothesized over multiple stages. At the front edge of the shelf plate 32, a price rail 34 formed of hard synthetic resin is provided, and the price rail 34 also serves as a decoration of the shelf plate 32. In addition, a predetermined interval is formed between the front wall of the shelf plate 32 and the price rail 34, and a guard 35 for preventing the goods on the shelf plate 32 from falling is provided at the interval. .

In the present embodiment, the shelf plate 32 is made of a transparent material having a permeability, for example, a glass plate or an acrylic plate. In addition, the shelf board 32 comprised by the said transparent material shall have predetermined intensity | strength. In addition to this, the bracket 31, the price rail 34, the guard 35, etc. for attaching the shelf plate 32 to a support pillar may be comprised with a transparent material similarly.

At the upper edge of the front opening 12 of the heat insulation wall 2, an inner layer discharge port 16 and an outer layer discharge port 17 provided with honeycomb members 13 and 14 are provided in parallel, and these inner layer discharge ports 16 and The outer layer discharge ports 17 communicate with the inner layer duct and the outer layer duct, respectively. In addition, an inner layer suction port 18 and an outer layer suction port 19 are provided in a lower corner of the opening 12.

On the other hand, a plurality of blowers (not shown) corresponding to each of the inner layer duct and the outer layer duct are provided on the bottom wall 2A of the heat insulation wall 2 in the lower rear portion of the bottom plate 9.

The cooler 39 of the cooling device is installed vertically in the inner layer duct behind the rear partition plate. When the blower corresponding to the inner layer duct is operated, the cold air that has exchanged with the cooler rises in the inner layer duct, and the inner layer discharge port 16 Is discharged toward the inner layer suction port 18. 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 rises in the outer layer duct, and is discharged from the outer layer outlet 17 toward the outer layer suction port 19. The air sucked from the outer layer suction port 19 is accelerated again by the blower. Thereby, the front-back double air curtain is formed in the opening 12, a part of cold air air curtain inside is circulated in the display chamber 11, and the display chamber 11 is cooled.

On the other hand, the hand rail 20 provided over the full width of the lower edge of the opening 12 of the show case 1 is provided in the upper surface of 2 C of lower front walls of the heat insulation wall 2. The front lower panel 21 is provided on the front surface of the front wall 2C so as to be continuous with the hand rail 20, and below the front lower panel 21 is substantially the same as the front lower panel 21. The bumper 22 is provided so that it may become a height surface.

Next, with reference to FIGS. 3-5, the structure of the front part of the ceiling wall 2B of the heat insulation wall 2 is demonstrated. 3 is a partially enlarged cross-sectional view of FIG. 2, FIG. 4 is an enlarged cross-sectional view of a shade 46, and FIG. 5 is a view showing an installation state of the LED light 40. As shown in FIG.

The canopy 33 which protrudes forward is provided in the front end part (upper front end part) of the ceiling wall 2B of the heat insulation wall 2, and inside this canopy 33, the front opening of the display chamber 11 ( The reflecting plate 45 is provided in the state extended outward from 12). In addition, the thermometer 38 is provided on the front surface of the canopy 33 as shown in FIG.

The reflecting plate 45 is made of a metal plate coated with makeup, and an illuminating part 41 formed in the front portion is recessed in the longitudinal direction. This lighting installation part 41 is open toward the front opening 12 of the display chamber 11 located in the lower rear part, and the front and rear edges of the said lighting installation part 41 are located in the direction which approaches each other as it goes to an opening. It is slightly inclined.

And the surface which faces the said opening of this illumination installation part 41 becomes 41 A of illumination installation surfaces, and the angle which faces the front surface opening 12 of the display chamber 11 from upper front, ie, rearward inclination downward It is comprised facing the direction of the display room 11 of this, and LED lighting 40 is provided in 41 A of said illumination installation surfaces.

The LED lights 40 are provided in plural on the substrate 42 extending in the longitudinal direction at predetermined intervals, and the substrates 42 on which the LED lights 40 are installed are in contact with the lighting installation surface 41A. It is fixed by the some fixing screw 43 .... In addition, the LED lighting 40 used in this embodiment is a chip type white LED lighting (article number NS6W083T) made by Nichia Corporation. The LED lights 40 may be provided in one row or two rows or more in front and rear, and in this embodiment, two rows are provided. In the present embodiment, since the front opening 12 of the open show case 1 is formed to extend six (about 1830 mm), about 108 LED lights 40 are used.

In addition, a plurality of exhaust holes 44 are formed in the illumination installation surface 41A of the reflecting plate 45 on which the LED illumination 40 is provided over the longitudinal direction as shown in FIG.

41 A of illumination installation surfaces of the illumination installation part 41 are covered by the shade 46 provided in the form which encloses the LED illumination 40, the board | substrate 42, and the exhaust hole 44 from the lower side. The shade 46 is curved in a predetermined curvature so as to protrude toward the front opening 12 of the display chamber 11. In addition, the shade 46 is detachably installed by fitting the light fitting portion 41 of the reflecting plate 45. In FIG. 5, the state in which the shade 46 is provided in a part of illumination installation part 41 is shown.

This shade 46 is made of a colorless transparent material having a permeability, and in this embodiment, in order to diffuse the light from the LED lighting 40 to the front opening 12 of the display chamber 11, While the surface facing the LED light 40 side is formed smoothly, the outer surface 46A of the shade 46, which is opposite to the LED light 40, has a cross-sectional waveform or saw blade shape as shown in FIG. It is.

As a result, the light incident on the shade 46 by going straight from the LED illumination 40 in parallel can be refracted in multiple directions and diffused widely on the outer surface 46A having a cross-sectional waveform or saw blade shape.

When the LED light 40 is turned on by such a structure, the inside of the display room 11 is effectively from the upper front located outside the display room 11 by the irradiation light of the LED light 40 after being diffused in the shade 46. It becomes possible to illuminate the whole.

Here, with reference to the experimental result of FIG. 6, the comparison of the case where illumination in the display chamber 11 was performed by the conventional fluorescent lamp and the case where illumination in the display chamber 11 was performed by the LED illumination 40 like this embodiment Is done. In these experiments, devices other than lighting use the same show case for comparison. In the experiment using a conventional fluorescent lamp, as shown in Fig. 10, T10 (f32 mm) was used as the illumination on the canopy part, the ceiling top plate part, and the lower surface of the front part of each shelf 106 to be installed in four stages. And two types using a T5 tube (f16 mm). On the other hand, in the experiment using the LED lighting 40 as in the present embodiment, as shown in Fig. 7, the canopy 33 is provided with one row of the LED lighting 40.

Then, four shelves were installed in the display room of each show case 1, goods S were loaded at the front end of each shelf, and the illuminance of the light irradiated onto the face of each product was measured. Moreover, the face surface of the product S on the upper shelf is A point, and the face surface of the product S on the second shelf is B point, and the face surface of the product S on the third shelf. Let C point and the face surface of the goods S on the shelf of a 4th step be D point.

According to this, the illuminance of each point in the case of using a T10 fluorescent lamp was A point 1260 LX, B point 830 LX, C point 600 LX, and D point 600 LX. In addition, as for the illuminance of each point in the case of using a T5 tube fluorescent lamp, point A was 1800 LX, point B was 1300 LX, point C was 700 LX, and point D was 470 LX. At positions other than the point D, it was found that the T5 tube fluorescent lamp had higher illuminance than the case where the T10 fluorescent lamp was used.

On the other hand, when the LED lighting 40 like this embodiment is provided in the reflecting plate 45 inside the canopy 33, the illuminance of each point is A380 2X LX, B 1520 LX, C C 1000 LX, D point was 812 LX. Therefore, it turned out that the illuminance of the light irradiated to the goods mounted in each shelf is higher in the case where the LED illumination 40 is used than in the case where the fluorescent lamp like the conventional case was used.

In addition, when compared with the total power consumption required for illumination in each case mentioned above, it is 468 W when a T10 fluorescent lamp is used, 356 W when a T5 tube fluorescent lamp is used, and 198 W when the LED light 40 is used. . The power consumption of the T5 tube fluorescent lamp when the power in the case of using the T10 fluorescent lamp was 100 was 76%, and the power consumption of the LED light 40 was 42%.

Therefore, when the LED lighting 40 is used as the lighting in the display room 11 like this embodiment, compared with the case where the conventional lighting apparatuses, such as fluorescent lamps, were installed in the display room, the lighting effect equivalent or more is compared. Can be exercised. Therefore, even if it is the structure which does not install the lighting fixture which light-emits itself in the said shelf board 32, for example, fluorescent lamps or other lighting fixtures, etc. in the lower surface of the shelf board 32, the goods displayed on each shelf board 32, especially The beverage in a milk carton, a plastic bottle, etc. is mounted in the standing state, and it becomes possible to illuminate the face surface of the goods facing the front opening 12 of the display chamber 11 effectively.

This eliminates the need for lighting fixtures on each shelf plate 32, which can prevent short circuits due to dew condensation, and can also eliminate parts attached to lighting such as sockets and ballasts for installing these lighting fixtures. , It becomes possible to simplify the configuration of the shelf. In addition, since the number of parts can be reduced, productivity can be improved.

Moreover, the LED lighting 40 provided in the reflecting plate 45 of the canopy 33 can exhibit the same lighting effect as the case where the conventional lighting apparatuses, such as fluorescent lamps, were installed in the display room, and therefore showcase ( 1) It is possible to significantly reduce the overall power consumption.

In addition, the LED light 40 does not emit harmful ultraviolet rays or heat rays to the goods displayed in the display room 11, it can be illuminated without heating the goods. In particular, since the LED light 40 which itself generates heat is installed inside the canopy 33 which protrudes forward than the upper front end of the heat insulation wall 2, the outside of the display chamber 11, that is, the cold air curtain The inside of the display chamber 11 is illuminated from the outside. Therefore, the heat load in the display chamber 11 concerning lighting can be made 0, and it becomes possible to prevent the fall of the cooling efficiency of the show case 1 itself beforehand. Therefore, it becomes possible to reduce the running cost of the showcase 1 as a whole.

In addition, it is possible to avoid the problem of adversely affecting the product due to harmful ultraviolet rays caused by illumination. Thereby, it becomes possible to display a product, maintaining a fresher state.

On the other hand, since the board | substrate 42 with which the LED illumination 40 is installed is provided so that heat exchange is possible in the state which contacted the reflecting plate 45 comprised by the metal plate, the arrangement which arises from the board | substrate 42 of the LED illumination 40 is By being transmitted to the reflecting plate 45, the heat dissipation effect by the reflecting plate 45 can be obtained. As a result, the heat generated from the substrate 42 of the LED light 40 can be smoothly released.

In addition, unlike the fluorescent lamps conventionally used, the LED lighting 40 does not cause flickering, so that stable lighting can be performed and appropriate illumination of a product can be realized. In addition, since the dimming of the LED light 40 can be easily changed, the dimming can be changed more in accordance with the products displayed in the display chamber 11, thereby enabling more effective illumination.

In addition, since the LED lamp 40 has a significantly longer service life than fluorescent lamps, it is unnecessary to replace the lamps. Therefore, complicated work, such as waste disposal discharged at the time of replacement of a spare part or replacement, can be made unnecessary.

In addition, in the present embodiment, since the light traveling straight from the LED light 40 can be diffused in multiple directions by the permeable shade 46 covering the LED light 40, the display room ( It is possible to irradiate a wide range of light from the LED light 40 to the front opening 12 of 11), so that the entire interior of the display room 11 is also effectively illuminated by the LED light 40 irradiated from one direction. It becomes possible.

Thereby, goods displayed in front of the front opening 12 of the display chamber 11, especially the beverages in milk cartons or plastic bottles, etc. are mounted in the standing state, and the surface of the front opening 12 of the display chamber 11 Since the face surface of the product can be illuminated by the light emitted from the LED light 40 diffused through the shade 46, it becomes possible to improve the lighting effect of the product.

In the present embodiment, since the shade 46 has a cross-sectional waveform or saw blade shape of the outer surface 46A of the shade on the opposite side to the LED light 40, the shade 46A of the cross-sectional waveform or saw blade shape is formed. The outer surface becomes a prism, and it is possible to refract and diffuse light that is straight in parallel from the LED light in multiple directions, and to emit light from the LED light extensively by the shade.

Therefore, as mentioned above, the light from the said LED illumination 40 becomes possible to exhibit the lighting effect equivalent to or more than the case where the lighting apparatuses, such as a fluorescent lamp, were provided in the display chamber like the conventional one.

In the present embodiment, since the shelf plate 32 or the like of the shelf installed in the display chamber 11 is made of a transparent material as described above, the light emission of the LED light 40 irradiated from above is made of a transparent material. By passing through the shelf, the light emitted from the LED light 40 can be spread widely throughout the display chamber 11 without being impeded by the shelf, thereby improving the lighting effect of the entire display chamber 11.

Therefore, even with such a configuration, it is possible to illuminate a product on each shelf without installing a lighting fixture on each shelf plate 32, so that parts attached to lighting such as a socket for installing these lighting fixtures can also be unnecessary. Thereby, it becomes possible to simplify the structure of the shelf.

In addition to forming the shelf plate 32 or the like with a transparent material, as shown in FIG. 8, the shelf plate 32 is formed of a steel sheet material that has been used conventionally, and the bottom surface of the shelf plate 32 is formed. You may provide the light guide plate 48 in the The light guide plate 48 is made of, for example, an acrylic resin, and is slightly forward of the front end of the shelf plate 32 (the entire shelf including the price rail 34 and the like) [to the LED lighting 40 side]. In the state which extended and extended, it is provided in the whole lower surface of the shelf board 32. As shown in FIG. The light incidence part 49 is formed in the front end part of the light guide plate 48 provided in the state protruding toward the front side rather than the shelf plate 32, The light incidence part 49 receives the light irradiated from the LED illumination 40 To reflect backwards.

On the other hand, on the surface of the light guide plate 48 facing the lower surface side of the shelf plate 32, a plurality of grooves, scratches, and the like for diffusely reflecting the derived light are provided, and the reflective sheet 50 is attached to the surface. . The diffusion sheet 51 is attached to the surface opposite to the lower surface of the shelf plate 32 of the light guide plate 48, that is, the light emitting surface 52.

By such a structure, the interior of the display chamber 11 is illuminated by the LED light 40 from above, so that the LED light (for the light incident portion 49 of the light guide plate 48 protruding forward from each shelf plate 32 is provided). Light emission from 40 is incident. As a result, the light drawn backward from the light incidence part 49 is diffusely reflected by the scratches or the reflective sheet 50 formed on the lower surface side of the shelf plate 32, and diffused on the opposing light emitting surface 52. It diffuses by 51 and emits light. Accordingly, the irradiation light from the LED light 40 is emitted from the light emitting surface 52 of the light guide plate 48 provided on the entire bottom surface of the shelf plate 32 through the light guide plate 48.

Therefore, the diffused light is irradiated from the light emitting surface 52 of the light guide plate 48, thereby illuminating the entire surface on the opposite shelf plate 32 located below the shelf plate 32 on which the light guide plate 48 is provided. . Therefore, only the LED illumination 40 which illuminates the inside of the display room 11 from above can illuminate the inside of the display room 1 l from above, and not only the face surface of the goods loaded in each shelf board 32 but also the shelf. It is also possible to illuminate the goods stacked on the back of the plate 32, whereby the entire interior of the display chamber 11 can be illuminated effectively.

In particular, the illumination of the shelf plate 32 in which the light guide plate 48 is provided above opposes the light emission from the LED light 40 incident on the light incident portion 49 of the light guide plate 48 to the shelf plate 32. Since light is emitted from the light emitting surface 52 of the light guide plate 48 to be installed, it is not necessary to install a lighting fixture particularly, and sockets, wiring, and the like become unnecessary, so that the structure of the shelf can be simplified.

In addition, in this embodiment, although the light guide plate 48 is provided over the whole surface of the lower surface of the shelf board 32, if it is comprised extending in the depth dimension from the front side of the shelf board 32, it will be in such a structure. It is not limited.

In addition to the configuration of the LED lighting 40 provided inside the canopy 33, or instead of the configuration of the LED lighting 40, the interior of the display chamber 11 is provided within the display chamber 11 from the lower front of the display chamber 11. It is good also as a structure to illuminate with

In this case, as shown in FIG. 9, the hand rail main body 24 provided with the hand rail 20 in the said embodiment over the full width of the lower edge of the front opening 12 of the show case 1 is shown. And a reflecting plate 26 provided on the upper surface of the hand rail main body 24 over the entire width of the lower edge of the opening 12, and a front upper panel covering the front surface from the upper end of the hand rail main body 24. It consists of 25 and installs the LED illumination 40 in the said reflecting plate 26.

The reflecting plate 26 is comprised by the metal plate, and arrange | positions alternately with the hand rail main body 24 and the front upper panel 25 comprised by the said metal plate. As the metal plate used for the reflecting plate 26, for example, an aluminum material having high heat exchange efficiency is used. And on the upper surface of the reflecting plate 26, like the said reflecting plate 45, the illumination installation part 26A formed in the longitudinal direction is formed. In this lighting installation part 26A, the engaging claw 26B for detachably attaching the shade 53 to the front-back corner is provided.

And the surface facing the opening of this lighting installation part 26A becomes 26 C of illumination installation surfaces, The angle which faces the front surface opening 12 of the display chamber 11 from the lower front, ie, the rear inclination upper direction It is comprised facing the display room 11 direction, and LED lighting 40 comprised similarly to be provided in the inside of the said canopy 33 is provided in 26 C of said illumination installation surfaces.

And the lighting installation surface 26C of 26 A of lighting installation parts is covered by the shade 53 provided in the form which encloses LED illumination 40 etc. from the upper side. The shade 53 is curved in a predetermined curvature so as to protrude toward the front opening 12 of the display chamber 11. In addition, the shade 53 is detachably installed by fitting the front and rear ends to the engaging hook 26B of the lighting installation portion 26A of the reflecting plate 26. In addition, since the structure of the shade 53 is substantially the same as the structure of the shade 46, detailed description is omitted.

By this configuration, when the LED light 40 is turned on, the display room 11 is effective from the lower side located outside the display room 11 by the irradiation light of the LED light 40 after being diffused in the shade 53. It becomes possible to illuminate my whole.

Therefore, even in the case of such a configuration, a fluorescent lamp may be used on the lower surface of each shelf plate 32 provided in the display chamber 11 as in the case where the LED lighting 40 is provided inside the canopy 33 as described above. Even if it does not provide the external lighting fixture, it becomes possible to effectively illuminate the face surface of the goods displayed on each shelf. This eliminates the need for lighting fixtures on each shelf, which can prevent short circuits caused by dew condensation, and also eliminate the need for parts attached to lighting such as sockets and ballasts for installing these lighting fixtures. It becomes possible to simplify.

In addition, since the LED lighting 40 provided in the reflecting plate 26 can exhibit the same lighting effect as the case where the conventional lighting apparatuses, such as fluorescent lamps, were installed in the display chamber 11, in the whole showcase It is possible to significantly reduce power consumption.

Also in this case, since the LED lighting 40 is provided outside the cold air curtain, the heat load in the display chamber 11 related to the lighting can be zero, and the cooling efficiency of the show case 1 itself is lowered. Can be prevented in advance. Thereby, it becomes possible to aim at reducing the running cost of the showcase 1 whole.

In addition, in the reflection plate 26 provided in the hand rail main body 24 provided near the cold air intake port such as the outer layer intake port 19, condensation is generated by releasing heat generated from the substrate 42 of the LED light 40. It is possible to heat the vicinity of the cold air inlet which is easy to do, and it is possible to suppress the occurrence of condensation on the reflecting plate 26, the hand rail main body 24, and the front upper panel 25 constituting the hand rail 20.

Thereby, condensation can be prevented using the heat | fever emitted from the LED illumination 40, and the need for installing the dew condensation prevention heater in the hand rail 20 is eliminated.

In addition, in the said embodiment, although the hand rail 20 consists of the hand rail main body 24, the reflecting plate 26, and the front upper panel 25, it is not limited to this structure, The hand rail 20 ) Is formed as a single part, the hand rail 20 is formed of a metal member, and a reflecting portion is provided at a position facing the front opening 12 of the display chamber 11 from the lower front, and the reflecting portion Even if it is set as the structure which installs LED lighting 40, it is supposed that the same effect is exhibited.

In the above embodiment, the LED lighting 40 is installed inside the canopy 33 or the hand rail 20, and the interior of the display chamber 11 is illuminated from the upper front or the lower front, but the present invention is not limited thereto. If the LED lighting 40 itself is arrange | positioned outside the display chamber 11, the LED lighting 40 may be provided in the side plate 5 etc., for example, and the inside of the display chamber 11 may be illuminated from the side. Thereby, the heat load in the display chamber 11 regarding lighting can be made 0, and it becomes possible to prevent the fall of the cooling efficiency of the show case 1 itself beforehand.

In addition to the above, the LED lighting 40 as in the above embodiment is provided in the upper partition plate 8 and the side plate 5 on the display chamber 11 side of the inner layer discharge port 16, so that the inside of the display chamber 11 is removed. You may illuminate from upper side and side. This also makes it possible to effectively illuminate the inside of the display chamber 11.

In each of the above cases, by attaching the substrate 42 of the LED light 40 alternately with the place where the dew condensation easily occurs, such as the hand rail 20, or the place where the dew condensation easily occurs, the LED light 40 It is possible to prevent condensation by using the heat emitted from the condensate, and there is no need to install a condensation preventing heater.

In addition, in this embodiment, although the LED lighting 40 was provided in the so-called vertical open show case as an example, it is not limited to this, Even if it is a balanced open show case, it becomes possible to exhibit the same effect.

1 is a perspective view of an open show case to which the present invention is applied.

Figure 2 is a longitudinal side view of the open show case of Figure 1;

3 is a partially enlarged cross-sectional view of FIG.

4 is a cross-sectional view of the shade.

5 is a view showing an installation state of the LED light.

6 shows the results of illuminance measurements.

Figure 7 is a longitudinal side view of the show case used in the roughness measurement of Figure 6;

8 is an enlarged cross-sectional view of a shelf plate front part;

9 is an enlarged cross sectional view of a hand rail portion;

10 is a longitudinal side view of a conventional open show case;

<Explanation of symbols for the main parts of the drawings>

1: open show case

2: insulation wall

11: showroom

12: front opening

16, 17: discharge port

18, 19: inlet

20: hand rail

26, 45: reflector

31: bracket

32: shelf plate (shelf)

33: canopy

34: Price rail

35: guard

39: cooler

40: LED light

41: lighting installation

41A: light mounting surface

42: substrate

45: reflector

46, 53: shade

48: light guide plate

49: light incident part

50: reflective sheet

51: diffusion sheet

52: emitting surface

Claims (2)

A cold air curtain is formed in the front opening of the display chamber by forming a display chamber in the heat insulation wall, discharging cold air from the cold air discharge opening provided at the upper edge of the front opening of the display chamber, and sucking the cold air from the cold air suction opening provided at the lower edge of the opening. In the open show case, A hand rail provided at an upper end of the front wall of the heat insulation wall positioned outside the cold air intake port; A reflector installed on the hand rail, It is provided with the LED light installed in the reflecting unit, Open show case, characterized in that for illuminating the display room by the light emission of the LED light. The open show case according to claim 1, wherein the reflector is made of a metal member, and the substrate of the LED light is provided so as to be heat-exchangable with the reflector.

Images