JP2013215497A - Showcase - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a showcase in which power consumption is not increased and measures are taken to prevent appearance of stripe patterns on a current plate when an LED lighting equipment is used as a lighting equipment.SOLUTION: In a freezing and refrigeration open showcase, the inside of the showcase body formed with insulated walls is divided into a merchandise storage having an opening for putting goods in and out and a plurality of display racks and a cold air circulation duct outside thereof with an inner wall surface plate, a cooler is arranged in the cold air circulation duct, an air suction port is formed at a lower end of the cold air circulation duct and a cold air outlet is formed at an upper end, a lighting equipment illuminating the merchandise storage is arranged near the outlet, the cold air blown out from the outlet forms a cold air curtain on the opening to close the opening for putting the goods out and in and the inside of the merchandise storage is refrigerated. The lighting equipment is an LED lighting equipment 24 installed with a plurality of LED elements, the outside of the LED 25 element is covered with a cover member 27 consisting of a translucent part 30 facing toward the current plate 15 of the outlet and the other part 31 which is transparent.

Description

  The present invention relates to a showcase capable of displaying and storing refrigerated / frozen products by circulating cold air.

Conventionally, this type of showcase 1 includes a heat insulating wall 2 having a substantially U-shaped cross section and side plates 3 attached to both sides of the heat insulating wall 2 as shown in FIG. A partition plate 4 is attached to the inside of 2 with a gap, and a duct 6 is formed between the partition plate 4 and the heat insulating wall 2.
JP 2011-250992 A

  In the example of FIG. 5, the duct 6 is further partitioned by a partition plate 10, and is divided into a cold air duct 6 a and a protective airflow duct 6 b in which a cooler 17 of a cooling device is provided vertically, and is formed at the upper edge of the front opening 9 of the heat insulating wall 2. Are provided with honeycomb boards 11a and 11b to form air outlets 12a and 12b. The air outlet 12a communicates with the cold air duct 6a, the air outlet 12b communicates with the protective air duct 6b, and is formed at the lower edge of the opening 9. Forms the inlet 13.

  A bottom plate 7 is attached in front of the lower end of the partition plate 4 with a gap for a duct between the bottom wall of the heat insulating wall 2 and the inside of the partition plate 4 and the bottom plate 7 is a storage chamber 8.

  On the other hand, a fan case 14 is installed on the bottom wall of the heat insulating wall 2 below the bottom plate 7, and a fan 16 is attached to the fan case 14.

  Furthermore, the lower part of the bottom wall of the heat insulating wall 2 is a machine room 23. In the built-in showcase, a condenser, a compressor, a condenser fan, and the like constituting a cooling device are installed.

  The cool air that has been operated in this way with the blower 16 and exchanged heat with the cooler 17 rises in the cool air duct 6a and is discharged from the outlet 12a toward the suction port 13 to form a cool air curtain that closes the opening 9. To do.

  Moreover, the air sent into the protective airflow duct 6b from the air blower 16 is discharged toward the suction inlet 13 from the blower outlet 12b, and forms the protective airflow curtain which is a protective airflow of a cold air curtain.

  Then, the cold air and the protective airflow sucked from the suction port 13 are accelerated again by the blower 16, a part of the cold air curtain is circulated in the storage chamber 8, and the storage chamber 8 is cooled.

  A plurality of stages of shelves 18 are installed in the upper and lower sides in the storage chamber 8, and a lighting device 22 using a fluorescent lamp is attached to the front of the lower surface of each shelf 18.

  On the other hand, above the opening 9 of the heat insulation wall 2, the illuminating device 22 by a fluorescent lamp is also provided on the front side of the air outlet 12b. The illuminating device 22 is attached to the inside of the reflection plate 21 attached to the heat insulating wall 2. Thereby, the product displayed and stored on the shelf in the display room is illuminated by the fluorescent lamp. Further, a rectifying plate 15 is suspended from the air outlet 12b on the front side.

The illumination device 22 is not limited to a fluorescent lamp, and recently, as disclosed in the following patent document, an illumination device using a highly directional LED element has been adopted in place of the fluorescent lamp. Thus, the LED lighting device includes, for example, a substrate on which a plurality of chip-type LED elements are disposed, and includes a transparent cover member that covers the substrate and holds the substrate.
Japanese Patent Application Laid-Open No. 2010-200985

  As described above, the LED lighting device includes a substrate on which a plurality of LED elements are provided and a translucent cover member that covers the substrate and holds the substrate. Light and dark stripes due to the pitch are formed on the current plate, making it difficult to read leaflets attached to the current plate.

  In order to reduce the stripe pattern, it is effective to make the module cover smoke (semi-transparent) and diffuse light. However, if the cover is smoked, the irradiation efficiency becomes very low and the energy consumption increases in order to ensure the brightness of the snowboard portion.

  The object of the present invention is to eliminate the disadvantages of the conventional example, and in the case of using an LED lighting device for the lighting device, it is possible to take measures to prevent the appearance of a stripe pattern on the current plate without increasing the power consumption. To provide a refrigerated open showcase.

  In order to achieve the above-mentioned object, the present invention according to claim 1 is a product storage container having an opening for putting in and out a product and having a product display shelf inside the showcase body formed of a heat insulating wall, The outer cold air circulation duct is partitioned by an inner wall plate, a cooler is provided in the cold air circulation duct, the lower end of the cold air circulation duct is formed as an air inlet, and the upper end is formed as a cold air outlet. A lighting device that illuminates the product storage is provided near the outlet, and a cold air curtain is formed in the opening with the cool air blown from the outlet, closing the product storage opening and freezing and refrigeration open to cool the product storage In the showcase, the illuminating device is an LED illuminating device provided with a plurality of LED elements, and covers the outside of the LED elements with a cover member in which the rectifying plate direction portion of the air outlet is translucent and the other portion is transparent. It is an gist and.

  According to the first aspect of the present invention, the light from the LED lighting device can be prevented from appearing in a striped pattern by passing through the light diffusing structure by the translucent of the cover member in the direction of the rectifying plate. Moreover, since the diffusion structure is not allowed to pass through the showcase cabinet, normal illumination can be obtained.

  In the second aspect of the present invention, the cover member covers the LED element substrate constituting the LED lighting device and holds the substrate. In the third aspect of the present invention, the cover member is In the present invention, the light on the side opposite to the rectifying plate direction is guided to the rectifying plate by reflection of the reflecting plate in the showcase canopy. It is a summary.

  According to the second aspect of the present invention, a light diffusing structure is obtained with a cover member constituting the LED lighting device, and according to the third aspect of the present invention, the cover member is a separate member from the LED lighting device. By covering the outside, a light diffusing structure can be obtained even if a commercially available LED lighting device is used, and it can be used as needed by providing it so as to be movable.

  According to the fourth aspect of the present invention, the rectifying plate can be irradiated with the light that has passed through the light diffusing structure by the translucent of the cover member and the light by the reflection of the reflecting plate in the showcase canopy. There is no possibility that a leaflet or the like attached to the current plate is difficult to read due to a decrease in the amount of light due to this.

  As described above, according to the showcase of the present invention, when an LED lighting device is used as the lighting device, it is possible to take measures to prevent the appearance of a stripe pattern on the current plate without increasing the power consumption.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a perspective view of an LED lighting device of a freezing / refrigerated open showcase according to the present invention, FIG. 2 is a vertical side view thereof, and FIG. 3 is a vertical side view of a canopy portion of the showcase.

  As shown in FIG. 4, the entire structure of the showcase includes a heat insulating wall 2 having a substantially U-shaped cross section and side plates 3 attached to both sides of the heat insulating wall 2. A partition plate 4 is attached to the inner side of the interior of the housing, a duct 6 is provided between the partition plate 4 and the heat insulating wall 2, the duct 6 is further partitioned by a partition plate 10, and a cooler 17 of a cooling device is provided vertically. The cold air duct 6a and the protective airflow duct 6b are partitioned into each other, and honeycomb boards 11a and 11b are provided at the upper edge of the front opening 9 of the heat insulating wall 2 to form the air outlets 12a and 12b. The air outlet 12b communicates with the protective airflow duct 6b, and a suction port 13 is formed at the lower edge of the opening 9.

  Further, a rectifying plate 15 is suspended from the air outlet 12b on the front side.

  A bottom plate 7 is attached in front of the lower end of the partition plate 4 with a gap for a duct between the bottom wall of the heat insulating wall 2, and the inside of the partition plate 4 and the bottom plate 7 serves as a storage chamber 8, Below the bottom plate 7, a fan case 14 is installed on the bottom wall of the heat insulating wall 2, and a fan 16 is attached to the fan case 14.

  Further, the lower part of the bottom wall of the heat insulating wall 2 is a machine room 23, and in a built-in showcase, a condenser, a compressor, a condenser fan, and the like constituting a cooling device are installed.

  The cold air that has been operated by the blower 16 and exchanged heat with the cooler 17 rises in the cold air duct 6 a and is discharged from the air outlet 12 a toward the suction port 13 to form a cold air curtain that closes the opening 9. Moreover, the air sent into the protective airflow duct 6b from the air blower 16 is discharged toward the suction inlet 13 from the blower outlet 12b, and forms the protective airflow curtain which is a protective airflow of a cold air curtain.

  Then, the cold air and the protective airflow sucked from the suction port 13 are accelerated again by the blower 16, a part of the cold air curtain is circulated in the storage chamber 8, and the storage chamber 8 is cooled.

  As shown also in FIG. 3, the ceiling part (canopy part) has a lighting device for illuminating the goods in the warehouse, a night cover 5 for cold storage used outside business hours, and air outlets 12a and 12b for sending cold air into the warehouse. Many parts such as {rectifying plate 15 and honeycomb boards 11a and 11b} are installed. The present invention uses an LED lighting device 24 in which a plurality of LED elements 25 are provided in the lighting device.

  The LED lighting device 24 is attached to the inside of the reflection plate 21 attached to the heat insulating wall 2. The reflecting plate 21 is, for example, a white-coated steel plate or a mirror-finished steel plate, and has a shape lowered in an umbrella shape so as to cover the front and back of the LED lighting device 24.

  The LED illumination device 24 includes a substrate 26 on which a plurality of chip-type white LED elements 25 are arranged at predetermined intervals, and a rectangular cover member 27 that covers the LED elements 25 from the outside. .

  An upper surface of the cover member 27 is opened, and an engagement claw 28 for detachably holding the substrate 26 inserted from the opening side is formed on the inner edge of the opening.

  And the cover member 27 made the direction part of the baffle 12 of the blower outlet 12b the translucent 30 by the irradiation of the LED element 25, and made the other part the transparent 31. FIG.

  In this way, the light from the LED element 25 of the LED lighting device 24 can be prevented from appearing in a striped pattern by passing the light diffusion structure by the semi-transparent 30 of the cover member 27 in the direction of the rectifying plate 15. .

  Moreover, since the light from the LED element 25 of the LED lighting device 24 does not pass through the diffusion structure in the storage room 8 of the showcase, normal illumination can be obtained.

  Furthermore, the light opposite to the direction of the rectifying plate 15 is guided to the rectifying plate 15 by reflection of the reflecting plate 21 in the showcase canopy.

  As a result, the rectifying plate 15 can be irradiated with the light that has passed through the light diffusing structure formed by the semi-transparent 30 of the cover member 27 and the light reflected by the reflecting plate 21 in the showcase canopy. There is no risk that the leaflet attached to the current plate becomes difficult to read due to a decrease in the amount of light.

  FIG. 4 shows a second embodiment of the present invention. The outer side of the LED lighting device 24 is covered by a cover member 32 that is independent of the LED lighting device 24.

  In the same manner as the cover member 27 of the first embodiment, the cover member 32 is formed by translucent 30 in the direction portion of the rectifying plate 15 of the air outlet 12b by the irradiation of the LED element 25 and transparent 31 in the other portion.

  As in the first embodiment, the light from the LED elements 25 of the LED lighting device 24 passes through the light diffusing structure formed by the translucent 30 of the cover member 32 in the direction of the rectifying plate 15, thereby preventing the appearance of stripe patterns. Can be prevented.

  The cover member 32 is suspended and supported by a guide rail 33 or the like. Thereby, it can be removed from the LED illumination device 24 when not needed.

It is a perspective view of the LED lighting device of the showcase of the present invention. It is a vertical side view of the LED lighting device of the showcase of the present invention. It is a vertical side surface of the canopy part of the showcase of the present invention. It is a vertical side view which shows other embodiment of the LED lighting apparatus part of the showcase of this invention. It is a vertical side view which shows the outline | summary of a showcase.

DESCRIPTION OF SYMBOLS 1 ... Open showcase 2 ... Thermal insulation wall 3 ... Side plate 4 ... Partition plate 5 ... Night cover 5a ... Winding part 6, 6a, 6b Duct 7 ... Bottom plate 8 ... Storage chamber 9 ... Opening 10 ... Partition plate 11a, 11b ... Honeycomb Panel 12a, 12b ... Air outlet 13 ... Suction port 14 ... Fan case 15 ... Rectifying plate 16 ... Blower 17 ... Cooler 18 ... Shelf 19 ... Fluorescent lamp 20 ... Hook 21 ... Reflector plate 22 ... Illumination device 23 ... Machine room 24 ... LED lighting device 25 ... LED element 26 ... substrate 27 ... cover member 28 ... engaging claw 30 ... translucent 31 ... transparent 32 ... cover member 33 ... guide rail

Claims (4)

The inside of the showcase body formed by the heat insulating wall is partitioned by a wall plate in the cabinet into a product storage having an opening for putting in and out of the product and having a display shelf for the product, and a cold air circulation duct on the outside thereof. A cooler is provided in the circulation duct, the lower end of the cold air circulation duct is formed at the air inlet, the upper end is formed at the cold air outlet, and an illumination device for illuminating the product storage is provided near the outlet. In the showcase that cools the inside of the product storage, while forming the cold air curtain in the opening with the cold air blown out from it, closing the opening for putting in and out the product,
The lighting device is an LED lighting device in which a plurality of LED elements are provided, and the show is characterized in that the outside of the LED elements is covered with a cover member in which the portion in the direction of the rectifying plate of the air outlet is translucent and the other portion is transparent. Case.   The showcase according to claim 1, wherein the cover member covers the LED element substrate constituting the LED lighting device and holds the substrate.   The showcase according to claim 1, wherein the cover member is provided independently of the LED lighting device and is movable.   The showcase according to any one of claims 1 to 3, wherein the light on the side opposite to the rectifying plate direction is guided to the rectifying plate by reflection of the reflecting plate in the showcase canopy.

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