JP2010071622A - Showcase - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a showcase capable of executing energy saving operation of a lighting system and achieving effective lighting within a display chamber. <P>SOLUTION: The showcase 1 formed by displaying commercial products within the display chamber 11 includes a plurality of LED lighting systems 40, 48 having LED elements 43 for lighting inside of the display chamber 11, and a control device 24 for controlling the respective LED lighting systems 40, 48. The control device 24 enables control of lighting and extinction of the LED elements 43 of the plurality of LED lighting systems 40, 48 or darkening control to reduce the illuminance by full lighting and dimming independently with respect to each LED lighting system 40, 48. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a showcase in which a display room is formed in a heat insulating wall and products are displayed while being cooled in the display room, and particularly relates to lighting in the display room.

Conventionally, this type of showcase includes an open showcase 100 as shown in Patent Document 1 and FIG. FIG. 14 shows a vertical side view of a conventional open showcase 100. Such an open showcase 100 discharges cold air from a discharge port 103 formed at the upper edge of the opening 102 of the heat insulating wall 101 having a substantially U-shaped cross section toward the suction port 104 at the lower edge of the opening 102, thereby opening the opening 102. Form a cold air curtain. Thereby, the inside of the display chamber 105 surrounded by the heat insulating wall 101 is cooled to a predetermined temperature. A plurality of fluorescent lamps 108 are attached to the canopy 107 located outside the upper edge of the opening 102, both side edges of the opening 102, the front lower surface of the shelf 106, and the like to illuminate the display chamber 105 and the showcase 100 itself.
Japanese Patent Laid-Open No. 5-146346

  When the lighting device is turned on to display a product before opening a store, etc., in order to reduce power consumption and heat load in the display room, in general, energy-saving control that partially turns off the fluorescent lamp 108 is performed. It was.

  Here, in the conventional open showcase 100, a fluorescent lamp 108 is used as an illuminating device, and the fluorescent lamp 108 is provided on the upper front side of the display chamber 105 or on the lower surface of the shelf 106 installed in the display chamber 105. It was. The fluorescent lamp 108 is generally provided with a fluorescent lamp having a length of about 3 to 4 lengths as a single unit.

  Therefore, when executing the energy saving control, for example, one of several fluorescent lamps 108 arranged in series provided in front of the display room 105 is turned on, and the other is turned off. Or the light reduction control which reduces illumination intensity was performed.

  Accordingly, the range that can be illuminated by one fluorescent lamp 108 is limited, and the fluorescent lamp 108 has a length of about 3 to 4 according to the standard. Even if the lamp 108 is turned on, the illumination range of the part of the fluorescent lamp that is turned off becomes larger in the dark range. For this reason, even if any of the fluorescent lamps is lit, the display chamber becomes darker as the distance from the lit fluorescent lamp increases.

  In addition, when a product is displayed only in a range narrower than the illuminable range of the fluorescent lamp 108 in late-night business or the like where there are few customers, illumination is performed more than necessary. For this reason, a heat load is applied to the storage room more than necessary, and there is a problem that the energy-saving operation cannot be effectively performed.

  The present invention has been made in order to solve the conventional technical problem, and provides a showcase capable of realizing effective energy-saving operation of the lighting device and realizing effective lighting in the display room. provide.

  The showcase of the present invention is configured to display merchandise in a display room, and includes a plurality of LED lighting devices having LED elements that illuminate the display room, and a control device that controls each LED lighting device, This control device is capable of independently controlling the dimming control for reducing the illuminance by turning on and off the LED elements of a plurality of LED lighting devices or by fully lighting and dimming for each LED lighting device. It is characterized by.

  In the showcase of the invention of claim 2, in the above invention, the control device comprises an input means for selecting an LED illumination device for lighting / extinguishing the LED elements or lighting / darkening the LED elements. The LED illumination device is controlled based on the input operation.

  According to a third aspect of the present invention, there is provided the showcase according to the first aspect, wherein the control device displays a predetermined alarm state by controlling the LED lighting device.

  According to the present invention, in a showcase in which merchandise is displayed in a display room, the display case includes a plurality of LED lighting devices having LED elements that illuminate the display room, and a control device that controls each LED lighting device. The device is capable of independently controlling the dimming control for reducing the illuminance by turning on and off the LED elements of a plurality of LED lighting devices or by fully lighting and dimming, for each LED lighting device. As in the invention of Item 2, an input unit for selecting an LED lighting device that turns on / off the LED element or turns on / off the LED element is provided, and the LED lighting device is operated based on an input operation to the input unit. By controlling, for example, when displaying products before opening the store, turn on only the minimum necessary parts, or turn on all of them, or point to places where you want to promote sales. , Or, all is lit, the other point off, or, by, for example, dimming, without causing any trouble to the work and sales, it is possible to reduce power consumption. Further, the sales effect can be improved with less power consumption.

  According to the invention of claim 3, in the invention of claim 1, the control device controls the LED lighting device to display a predetermined alarm state so that the customer does not know. It is possible to perform device alarms in the showcase.

  At this time, it is possible to display a plurality of alarm states by determining the illumination pattern of the LED illumination device in advance for each type of alarm.

  Next, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a perspective view of an open showcase 1 to which the present invention is applied, and FIG. 2 is a longitudinal side view of the open showcase 1 of FIG. The open showcase 1 is a vertical open showcase that is installed in a store such as a supermarket, for example, and is attached to the side surface of the heat insulating wall 2 at the installation site, and a heat insulating wall 2 having a substantially U-shaped cross section that opens to the front. Insulating side plates 5 and 5.

  A partition plate 4 and another partition plate (not shown) are attached to the inside of the heat insulating wall 2 of the open showcase 1 with a space between them, and two layers (not shown) are provided between the partition plate 4 and the heat insulating wall 2. The duct is formed. A bottom plate 9 is attached in front of the lower end of the back partition plate 10 constituting the inner partition plate with a gap for the duct between the bottom wall 2A of the heat insulating wall 2 and the partition plate 4 and the bottom plate. The inside of 9 is a display room 11.

  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 formed of 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. The inner layer discharge port 16 and the outer layer discharge port 17 are The inner layer duct and the outer layer duct communicate with each other. 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 2A of the heat insulating wall 2 at the lower rear portion of the bottom plate 9.

  A cooler 39 of the cooling device is vertically installed in the inner layer duct behind the back partition plate 10, and when the blower corresponding to the inner layer duct is operated, the cold air exchanged with the cooler 39 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.

  On the other hand, a handrail 20 provided over the entire width of the lower edge of the opening 12 of the showcase 1 is attached to the upper surface of the lower front wall 2C of the heat insulating wall 2. A front lower panel 21 is attached to the front surface of the front wall 2C so as to be continuous with the handrail 20, and a bumper 22 is attached below the front lower panel 21 so as to be substantially flush with the front lower panel 21. It is done.

  Next, with reference to FIG.3 and FIG.4, the structure of the top wall 2B front part of the heat insulation wall 2 is demonstrated. FIG. 3 is a partially enlarged cross-sectional view of FIG. 2, and FIG. 4 is a view showing a mounting state of each LED lighting device 40.

  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 45 is attached. A temperature display 38 is provided on the front surface of the canopy 33 as shown in FIG.

  The reflection plate 45 is made of a metal plate to which a decorative coating is applied, and an illumination mounting portion 41 that is recessed in the longitudinal direction is formed at the front portion. The illumination attachment portion 41 opens toward the front opening 12 of the display chamber 11 located at the lower rear side, and the front and rear edges of the illumination attachment portion 41 are slightly inclined in the direction of approaching each other as they go to the opening. Is formed.

  The surface of the illumination mounting portion 41 that faces the opening is an illumination mounting surface 41A, which faces the front opening 12 of the display chamber 11 from the upper front, that is, in the direction of the display chamber 11 obliquely below the rear. A plurality of LED lighting devices 40 are arranged side by side on the illumination mounting surface 41A.

  The LED lighting device 40 is constituted by a substrate 42 on which a plurality of LED elements 43 are arranged, and the substrate 42 is fixed to a heat conductive conductive mounting plate 44. The substrate 42 is configured to extend in the longitudinal direction, and a plurality of LED elements 43 are attached to the substrate 42 at predetermined intervals. In this embodiment, the LED element 43 is a chip-type white LED element.

  In the present embodiment, the LED lighting device 40 is configured to have a length of about 1 scale. Since the open showcase in the present embodiment has a front opening (frontage) dimension of about 4 to 12 inches, the reflector 45 provided inside the canopy 33 has the LED illumination device according to the front opening dimension. 40 to 12 (plural) are arranged in parallel across the left and right. In addition, since the conventional illuminating device employ | adopted the fluorescent lamp of about 3 to 4 scales, 1 to 4 pieces were arranged in parallel in the said open showcase.

  Further, the mounting plate 44 of each LED lighting device 40 is formed with a screw hole for fixing to the lighting mounting portion 41 with screws. A plurality of exhaust holes (not shown) are formed in the illumination mounting surface 41A of the reflection plate 45 to which each LED illumination device 40 is mounted in the longitudinal direction. And the illumination attachment surface 41A of the illumination attachment part 41 is covered with the shade 46 attached in the form which surrounds the LED illumination apparatus 40 and an exhaust hole from the lower side.

  The shade 46 is made of a transparent and colorless material. In this embodiment, the shade 46 diffuses light from the LED lighting device 40 (LED element 43) to the front opening 12 of the display chamber 11. Therefore, the surface facing the LED lighting device 40 side is formed smoothly, and the outer surface of the shade 46 on the side opposite to the LED lighting device 40 has a cross-sectional waveform or a saw blade shape.

  As a result, light that travels straight in parallel from the LED element 43 and enters the shade 46 is refracted in multiple directions on the outer surface having a cross-sectional waveform or a saw blade shape, and can be diffused over a wide range.

  With this configuration, when each LED lighting device 40 is turned on, the display chamber is effectively displayed from the upper front located outside the display chamber 11 by the irradiation light of each LED element 43 after being diffused in each shade 46. 11 can be illuminated entirely.

  As shown in FIG. 2, under the shelf LED illumination for illuminating the product displayed below the shelf 32 on the lower surface of the front end of the shelf 32 installed in a plurality of stages in the display chamber 11 as described above. A device 48 is provided. A plurality of under-shelf LED lighting devices 48 provided on the shelf plate 32 are arranged in parallel across the left and right sides of the shelf plate 32 in the same manner as the LED lighting device 40 provided on the reflection plate 45. The under-shelf LED lighting device 48 has substantially the same configuration as that of the LED lighting device 40, and thus detailed description thereof is omitted.

  Next, the control device 24 of the showcase in the present embodiment will be described with reference to an electric block diagram of the control device 24 of FIG. The control device 24 is configured by a general-purpose microcomputer having a timer function, and an internal temperature sensor 25 for detecting the temperature in the display chamber 11 and a control panel 26 are connected to the input side. . The control panel 26 includes at least various switches for controlling the LED lighting devices 40 and the under-shelf LED lighting devices 48, that is, the entire LED lighting devices 40 and 48 are turned on / off. Illumination switch 27, each illumination switch 28A-28P which performs lighting / extinction of each LED lighting apparatus 40, 48 individually, and full lighting / dimming adjustment, pattern input switch 29, etc. are provided.

  And the cooling device R comprised from the cooler 39 as mentioned above and the compressor, air blower, etc. which comprise what is called a refrigerating cycle is connected to the output side of the control apparatus 24, and each LED illumination device 40 and each each A shelf underside LED lighting device 48 is connected via LED control units 50 and 58, respectively. Each of the LED control units 50 and 58 includes an LED power source that supplies power to each LED element 43 and a dimming control unit that performs dimming of each LED element 43. In addition, on the output side of the control device 24, a temperature display unit 38 that is provided on the upper front surface of the heat insulating wall 2 and displays the temperature in the display chamber 11 and the current mode is connected.

With the above configuration, lighting control of the open showcase 1 in the present embodiment will be described. Here, in the illumination control to be described, a case where four LED lighting devices 40 and 48 having a length of about 1 scale are arranged in parallel will be described as an example. As shown in FIG. 6, the LED illumination devices 40 provided on the reflector 45 located inside the canopy 33 are 40A, 40B, 40C, and 40D in order from the left. In the present embodiment, it is assumed that shelves are erected in three levels in the display chamber 11, and the LED lighting devices 48 under the shelves provided on the uppermost shelf 32 are 48E and 48F in order from the left. 48G, 48H. The under-shelf LED illuminating devices 48 provided on the second shelf 32 from the top are 48I, 48J, 48K, and 48L in order from the left. The under-shelf LED lighting devices 48 provided on the bottom shelf 32 are 48M, 48N, 48O, and 48P in order from the left.
(1) During normal business operations First, lighting control during normal business operations with many customers will be described. In this case, the entire lighting switch 27 of the control panel 26 is operated to select all lighting of all the LED lighting devices 40 and 48 in the showcase 1. Thereby, the control apparatus 24 makes the LED elements 43 of all the LED lighting apparatuses 40A to 40D and the under-shelf LED lighting apparatuses 48E to 48P all light up by the LED control units 50 and 58 (FIG. 6).

Thereby, the inside of the display room 11 of the showcase 1 can be effectively illuminated from the front above the display room 11 by the LED lighting devices 40A to 40D, and the under shelf LED lighting devices 48E to 48P It becomes possible to effectively illuminate products displayed on the shelf 32 and the bottom plate 9 provided below the LED lighting device under the shelf.
(2) During night hours (entire lighting)
Next, with reference to FIG. 7, lighting control during night hours with few customers will be described. In this case, the energy saving illumination pattern is selected by the pattern input switch 29 of the control panel 26. Thereby, the control device 24 turns on all the LED elements 43 of all the under-shelf LED lighting devices 48E to 48P, and the LED lighting device 40 turns on only the selected LED elements 43.

  That is, as shown in FIG. 7, each LED lighting device 40 turns all the LED elements 43 on or off every other one. In this embodiment, the LED lighting devices 40A and 40C are all turned off, and the LED lighting devices 40B and 40D are turned on.

  At this time, each LED lighting device 40 is configured to have a relatively short dimension (about 1 scale) with respect to the front opening dimension (about 4 to 12 scales), and these are provided inside the plurality of canopies 33. It is arranged in parallel with the reflector 45. Therefore, as described above, even if these LED lighting devices 40 are all turned on or turned off every other one, the display room 11 does not create a state where only a part of the display room 11 is not illuminated. Although the overall illuminance decreases, it can be illuminated.

  Therefore, it is possible to significantly reduce power consumption by controlling each LED lighting device 40 during such business hours as nighttime with few customers.

  In the present embodiment, an illumination pattern is employed in which each LED illumination device 40 is turned on and off every other time, but is not limited to this, and is controlled by the LED control unit 50. Thus, an illumination pattern that performs all lighting and every other dimming that reduces the illuminance by a predetermined illuminance may be adopted. Thereby, it becomes possible to aim at suppression of power consumption, without feeling more uncomfortable.

  Further, in the above illumination pattern, every LED lighting device 40 is continuously turned on and off at intervals of every other LED lighting device 40. However, the illumination is performed by switching between turning on and off each predetermined time. A pattern may be adopted. That is, when the illumination pattern is input by the pattern input switch 29, the controller 24 first turns off each LED illumination device 40, specifically turns off the LED illumination devices 40A and 40C, The LED lighting devices 40B and 40D are all turned on. After a predetermined time has elapsed, these are switched to turn on the LED lighting devices 40A and 40C and turn off the LED lighting devices 40B and 40D.

  At this time, it becomes possible for the control device 24 to achieve uniform illumination in the display chamber 11 by alternately energizing these all-on / all-off in a short time by a built-in timer function. . Thereby, it becomes possible to perform illumination of the entire display chamber 11 without hindrance and uncomfortable feeling, and it is possible to suppress power consumption.

  In this case as well, similar to the above illumination pattern, not only a combination of all lighting and all lighting off, but also a lighting pattern with all lighting and dimming that reduces the illuminance by a predetermined illuminance may be adopted.

Further, in this embodiment, each LED lighting device 40 performs full lighting and extinguishing every other time or dimming by reducing the illuminance by a predetermined illuminance, but the pattern input switch 29 arbitrarily sets the illumination pattern. For example, it is possible to perform full lighting and full light extinction / dimming by two of the arranged ones.
(3) Energy Saving Control Before Sales Next, energy saving control of the lighting device when performing product display before sales will be described with reference to FIG. In this case, the entire lighting switch 27 of the control panel 26 is operated to select all the LED lighting devices 40 and 48 in the showcase 1 to be turned off, and then provided corresponding to the LED lighting devices 40A to 40D, respectively. Any one of the illumination switches 28A to 28D to be operated is operated so that only the LED illumination device 40 is fully lit. As a result, the control device 24 turns off all the LED lighting devices 40 and the under-shelf LED lighting devices 48 other than the LED lighting device 40 to which full lighting is input, and turns on only the selected LED lighting device 40. In FIG. 8, only the LED illumination device 40B is fully lit, and the others are all unlit.

  As a result, it is possible to partially illuminate only the minimum necessary parts required for display when displaying the product, and it is possible to suppress power consumption without causing trouble in the work. Moreover, it becomes possible to reduce the heat load to the inside of the display room 11 by illumination, and it becomes possible to aim at the improvement of cooling capacity and also the reduction of the power consumption of the whole showcase.

In particular, according to the present invention, each LED lighting device 40 is configured to have a relatively short dimension (about 1 scale) with respect to the front opening dimension (about 4 to 12 scales). Are arranged in parallel with the reflector 45 provided in the. Therefore, since these LED illumination devices 40 can be controlled independently, only partial illumination can be realized. The energy saving control performed only for a specific time before the business may be executed by setting the time in the control device 24 in advance, and when the time is reached by a timer built in the control device 24. .
(4) During night hours (lighting under the shelf)
Next, with reference to FIG. 9, the under-shelf lighting control during night hours with few customers will be described. In the nighttime business with few customers, the number of products displayed in the display room 11, particularly products such as fresh food, decrease according to the number of customers. In this case, in order to facilitate the customer's selection of merchandise and further to facilitate merchandise management on the store side, as shown in FIG. 9, the merchandise is biased and displayed on one side of the display room 11.

  In such a case, the LED lighting devices 40 and 48 corresponding to the product display side are all turned on by the respective lighting switches 28 of the control panel 26, and the LED lighting device 40 corresponding to the product display side is not displayed. 48 are all extinguished. In FIG. 9, since the goods are displayed in a state of being biased to the right side toward the display room 11, the lighting switches 28B to 28D, 28F to 28H, 28J to 28L, 28N to 28P are selected to be turned on, and the lighting switch 28A is selected. , 28E, 28I, and 28M are selected to be turned off.

  As a result, the LED lighting devices 40B to 40D and the LED lighting devices 48F to 48H, 48J to 48L, 48J to 48L, and 48N to 48P corresponding to the places where the products are displayed are all turned on, and the LED lighting device. The LED elements 43 of the 40A, under-shelf LED lighting devices 48E, 48I, and 48M are completely turned off.

  In addition, the present invention is not limited to this, and in the case where products are scattered and displayed in the display room 11, as shown in FIG. 10, locations where the products are displayed below the respective under-shelf LED lighting devices 48. The LED elements 43 of the respective under-shelf LED illuminating devices 48 may be arbitrarily turned on / off by operating the respective lighting switches 28 so as to illuminate the LED.

Thereby, even if it is time when there are few customers, such as night business, according to the condition of the goods currently displayed in the display room 11, the under-shelf LED controlled independently in the location where the goods are displayed Illumination is performed by the illuminating device 48, and the under-shelf LED illuminating device 48 that is independently controlled can be turned off at a place where no product is displayed. Therefore, it is possible to realize appropriate product illumination and to suppress the power consumption of the lighting device 48.
(5) Opening hours (under shelf lighting)
Next, under shelf lighting control will be described with reference to FIG. The products displayed in the display room 11 include sales promotion products and normal products. In this case, as shown in FIG. 11, there is a case where the sales promotion product is biased and displayed on one side of the display room 11 in order to promote the customer's purchase intention more effectively than the normal product.

  In such a case, each lighting switch 28 of the control panel 26 turns on the LED lighting devices 40 and 48 corresponding to the side where the sales promotion product is displayed, and the LED corresponding to the side where the normal product is displayed. The lighting devices 40 and 48 are dimmed by reducing the illuminance by a predetermined illuminance. In FIG. 10, since the sales promotion products are displayed in a state biased to the right side toward the display room 11, the lighting switches 28B to 28D, 28F to 28H, 28J to 28L, 28N to 28P are selected to be turned on, and the lighting is performed. The switches 28A, 28E, 28I, and 28M select dimming by dimming. It should be noted that the dimming adjustment by each lighting switch may not only be dimmed to a predetermined illuminance but also be capable of dimming adjustment steplessly.

  As a result, the LED lighting devices 40B to 40D, the under shelf LED lighting devices 48F to 48H, 48J to 48L, and 48N to 48P corresponding to the places where the sales promotion products are displayed are all turned on, and the LEDs The LED elements 43 of the illumination device 40A and the under-shelf LED illumination devices 48E, 48I, and 48M are dimmed.

  In addition, the present invention is not limited to this, and when sales promotion products are scattered and displayed in the display room 11, the sales promotion products are displayed below the respective under-shelf LED lighting devices 48 as shown in FIG. The LED elements 43 of the respective under-shelf LED illuminating devices 48 may be arbitrarily turned on / off by manipulating each illumination switch 28 so as to illuminate the spot where it is spotted.

  Thereby, according to the condition of the goods currently displayed in the display room 11, illumination with higher illumination intensity is performed to the location where the sales promotion goods are displayed by the under-shelf LED lighting device 48 controlled independently. In a place where normal products are displayed, the under-shelf LED lighting device 48 that is controlled independently can be dimmed. Therefore, it is possible to realize appropriate product illumination and to suppress the power consumption of the lighting device 48.

In this way, the LED lighting devices 40 and 48 can be independently controlled by the lighting switches 28A to 28P as input means for turning on / off each LED element 43 or turning all the LEDs on / off. Therefore, it becomes possible to control each LED lighting apparatus 40 and 48 individually based on input operation to each lighting switch. Therefore, as described above, when displaying the product before business, only the display location is lit or all lit, or the location displaying the product to be promoted is lit or all lit, and other locations It is possible to suppress power consumption without causing any trouble in work or sales by turning off or dimming. Further, the sales effect can be improved with less power consumption.
(6) Alarm Next, with reference to FIG. 13, the alarm operation | movement by each LED lighting apparatus 40 is demonstrated. The showcase 1 includes an alarm for prompting filter cleaning, an alarm for notifying a sensor abnormality, an alarm for notifying a low temperature abnormality, an alarm for notifying a high temperature abnormality, an alarm for notifying an abnormality of a cooler, an alarm for notifying a filter replacement time, etc. Alarm for various devices. Normally, each alarm is notified by an alarm lamp or the like provided on the control panel 26 or the like, but the notification cannot be recognized unless the control panel 26 is viewed.

  In the present embodiment, the control device 24 performs an alarm operation by each LED illumination device 40 while performing an alarm by the alarm lamp. The alarm operation is performed on the precondition that all the LED lighting devices 40 are turned on, and an illumination pattern is preset in the control device 24 for each alarm content.

  For example, if the alarm prompts the filter cleaning, only the LED lighting device 40A is turned off and the other LED lighting devices 40B to 40D are turned on as shown in FIG. Moreover, if it is an alarm which alert | reports sensor abnormality, only LED lighting apparatus 40B will be light-extinguished and other LED lighting apparatus 40A, 40C, 40D will be lighted.

  Accordingly, a plurality of LED illumination devices 40 having a relatively short dimension (about 1 scale) with respect to the front opening dimension (about 4 to 12 scales) are provided on the reflector 45 provided inside the plurality of canopies 33. In the showcases 1 arranged side by side, a predetermined alarm state can be displayed by the illumination pattern (lighting / extinguishing) of these LED lighting devices 40. Therefore, it is possible to perform an alarm for the device in the showcase 1 without greatly reducing the illuminance of the showcase 1 as a whole and in a manner that is difficult for the customer to understand.

  Therefore, compared to the case where the alarm is notified only by the alarm lamp provided on the control panel 26 or the like as before, the store clerk in the vicinity of the showcase can easily grasp the alarm, and the response is prompt. Can be realized.

  Note that the input means to the control device 24 in the above embodiment is not limited to the input means in the control panel 26, but is performed by the input means of the management-side control device of the centralized management system that performs communication control of the showcase 1 concerned. May be.

It is a perspective view of an open showcase to which the present invention is applied. It is a vertical side view of the open showcase of FIG. FIG. 3 is a partially enlarged sectional view of FIG. 2. It is a figure which shows the attachment state of each LED lighting apparatus. It is an electrical block diagram of a control apparatus. It is a figure which shows an illumination pattern (at the time of normal operation). It is a figure which shows an illumination pattern (at the time of night business. Whole illumination). It is a figure which shows an illumination pattern (pre-sales energy-saving control). It is a figure which shows an illumination pattern (at the time of business at night. Under shelf light). It is a figure which shows an illumination pattern (at the time of business at night. Under shelf light). It is a figure which shows an illumination pattern (at the time of normal operation. Under-shelf illumination). It is a figure which shows an illumination pattern (at the time of normal operation. Under-shelf illumination). It is a figure which shows an illumination pattern (alarm). It is a vertical side view of the conventional open showcase.

Explanation of symbols

R Cooling device 1 Open showcase (showcase)
2 Heat Insulating Wall 2B Top Wall 4 Partition Plate 5 Side Plate 9 Bottom Plate 10 Back Partition Plate 11 Display Room 12 Front Opening 24 Controller 26 Control Panel 27 Overall Lighting Switch (Input Means)
28A to 28P Lighting switch 29 Pattern input switch 32 Shelf plate 33 Canopy 40, 40A to 40D LED lighting device 41 Lighting mounting portion 41A Lighting mounting surface 42 Substrate 43 LED element 44 Mounting plate 45 Reflecting plate 46 Shade 48, 48E to 48P LED under shelf Lighting device 50, 58 LED control unit

Claims (3)

In a showcase where products are displayed in the display room,
A plurality of LED lighting devices having LED elements for illuminating the display room;
A control device for controlling each LED lighting device,
The control device is capable of independently controlling each LED lighting device for dimming control in which the LED elements of the plurality of LED lighting devices are turned on and off, or all lighting and dimming reduce the illuminance. A showcase characterized by   The control device includes an input unit for selecting the LED lighting device to turn on / off the LED element, or turn on / off the LED element, and the LED lighting device is controlled based on an input operation to the input unit. The showcase according to claim 1, wherein the showcase is controlled.   The showcase according to claim 1, wherein the control device displays a predetermined alarm state by controlling the LED lighting device.

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