JPH0244171A - Showcase - Google Patents

Abstract

PURPOSE:To form an illumination chamber for lighting to a storing chamber and its lower part, and to prevent dew from dripping onto a charging part such as a terminal by arranging a dew flashing board formed of a transparent sheet so as to cover the upper surface of a connecting terminal of an illuminating device under a light transmittable member partitioning an air vent chamber and the illumination chamber in a heat-insulated and light-transmittable manner. CONSTITUTION:A base 11 is formed into a substantially circular shape in plane view, and an air vent chamber 15 feeding cold air into a commercial goods storing chamber 12 and made of a light transmittable material is provided on an upper step under a turn table 14 forming the bottom wall of the commercial goods storing chamber 12, and also an illumination chamber 16 is provided on a lower step surrounding the air vent chamber 15, respectively. Both chambers 15 and 16 are partitioned with a partitioning board 17, a heat insulating material 18 and a light transmittable member having heat insulating properties, for example, a three-layer transparent glass sheet 19. A dew flashing board 36 is a sheet made of a transparent resin such as polycarbonate and allows light projected from a fluorescent lamp 23 to transmit upward. At the same time, the board 36 stops heat generated by lighting on the lower surface of the dew flashing board to control thermally adverse effect on the transparent glass sheet 19 and also guides air entered through an opening 24 toward an exhaust port 37 side along the lower surface of said board.

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] Industrial Field of Application The present invention relates to a dew-proof structure that prevents dew droplets from falling onto a charging portion of a lighting device disposed in a lighting room of a low-temperature showcase.

In conventional technology showcases, products are taken in and out of the refrigerator through an opening for taking out products, but sunlight or indoor lighting pouring into the refrigerator through the opening is not enough to display the products inside the refrigerator. Since this is not possible, a lighting device is usually installed in the showcase itself. Most of these lighting devices are designed to illuminate the inside of the refrigerator from above or from the front, and Japanese Utility Model Publication No. 62-31939 describes a device that holds a fluorescent light as a lighting device on the bottom surface of the product shelf. A shelf device has been disclosed, and Japanese Utility Model Application Publication No. 58-133794 discloses a proposal regarding the arrangement relationship between a socket and an outlet provided at the tip of a power supply line extending from a lighting device.

Problems to be Solved by the Invention In the former publication listed above, the fluorescent lamp is easily attached to the back of the shelf board and replaced, and sockets are attached to both ends of the fluorescent lamp. All you have to do is to hold the fluorescent lamp between the holders. However, although the fluorescent lamp's light illuminates the products below, it is not necessary to illuminate the products above because of its structure. Furthermore, the present invention does not propose a structure for preventing dew droplets from falling onto the connecting portion of the node line extending from the fluorescent lamp.

On the other hand, in the latter publication, the power connection receiving terminal to which the socket from the lighting device is connected is placed eccentrically from the center of Funcent's circle, which makes it possible to secure a space to point out when removing the socket and to reduce the radius of the outlet. can. However, since the outlet provided on the back wall of the showcase did not have a cover or other structure to prevent dew droplets from entering, there was a risk of electrical leakage from the power connection receiving terminal.

Therefore, the present invention aims to provide a showcase that forms an illumination chamber that illuminates the storage chamber located above and illuminates the downward direction, and also prevents dew from the storage chamber etc. from dripping onto live parts such as terminals. That is the issue.

[Structure of the Invention] Means for Solving the Problems In order to solve the above-mentioned problems, the showcase of the present invention has a product storage chamber surrounded by a three-dimensional see-through member formed in the upper part thereof, and the product storage chamber is cooled. A box body is provided with a base formed at the bottom of the base, which has a lighting room with a lighting device around the ventilation room and a lighting device on the lower part, and the ventilation room and the lighting room are connected with heat insulation and translucency. An exposure plate made of a transparent thin plate is disposed below the partitioning transparent member to cover the upper surface of the connection terminal of the lighting device.

An illumination room is arranged below the working product storage room to eliminate anything that obstructs the visual field of the see-through member. In addition, the exposure plate prevents dew from the light-transmitting member from dripping onto the connection terminals of the lighting device, and guides the air that is warmed by the lighting of the lighting device to the outside (towards the exhaust vent) inside the lighting room. Controls temperature rise. Furthermore, the exposure plate is made of a thin plate to provide flexibility (flexibility).

Examples Examples of the present invention will be described below with reference to FIGS. 1 to 4.

(1) is a closed display box (2) placed on a display stand such as a glass case, and is formed separately from the display box to store mechanical parts and to draw out cooling air, that is, cold air; The display box (2), which is an unused space formed at the bottom of the display stand, and the machine box (3) as a mechanical unit located at a separate location, and both boxes <2> (3) are connected by air circulation. This is a separate type showcase that is constructed of a blower pipe (4) that can communicate with each other and is covered with a heat insulating material to suppress the rise in temperature of the cold air.In this example, a refrigerated showcase will be explained.

The display box (2) has a base (14) on its top surface that has a turntable (14) with several types of arrangement patterns, which is rotatably and removably held and has a partition mechanism for individually receiving the bottoms of the products for sale. 11) and a transparent member (hereinafter referred to as hood) (13) that surrounds the products placed on the turntable 14) and defines a product storage chamber (12) above the base (11). The device is constructed with the following components and is placed on a display stand or the like.

The base (11) is approximately circular in plan view and has a product storage chamber (
A ventilation chamber (15) made of a translucent material and supplying cold air to the product storage chamber (12) is installed at the lower upper stage of the turntable (14), which is the bottom wall of the ventilation chamber (15). A lighting room (16) is formed in the lower part, and both rooms (15) and (16) are equipped with a partition plate (17) and a heat insulating material (1).
8) and partitioned with a light-transmitting member having heat insulating properties, such as three-layer transparent glass (19).

Next, the lighting room (16) will be described in detail.
> consists of a horizontal part (20), an inclined part (21), and an opening (22) formed at the center of the lower end of the inclined part, and a three-layer transparent glass (19) is arranged in the opening part, and the lower part of this glass is A lighting lamp, such as an annular fluorescent lamp (2
3) is installed. Further, an opening (24) is formed on the bottom surface of the base (11) for taking in air from below and illuminating the light downward, and in this example, the opening (24) is shaped like a grid. The glow lamp socket (2) is fixed to the mounting plate (25) in the central space of the fluorescent lamp (23).
6) and a glow lamp (27), and also an overtemperature rise preventer (28). This temperature rise preventer (28) detects the temperature of the air inside the lighting room (16), and when the air temperature reaches a predetermined temperature (for example, 63"C) or higher, the fluorescent lamp (23) and backing heater (partition The heater (29) is placed on the bottom of the board and is normally energized after the power is turned on to keep the temperature of the horizontal part (20) above the dew point temperature. When this occurs, the fluorescent lamp (23) and the backing heater (29) are restarted.Then, the fluorescent lamp is placed in an appropriate place on the base, for example on the side of the covers (31A) and (31B) of the hinge device (30). A power switch (23) (not shown) is provided, and a condensation prevention heater (32) provided at the inner bottom of the base and around the transparent glass (19) is connected to the fluorescent light (23). The dew condensation prevention heater (32) is wired so that it can be switched, and the dew condensation prevention heater (32) is energized when the fluorescent lamp is turned off.

(33) is a fixing boss for fixing the partition plate (17) together with the heat insulating material (18>) to the base (11);
) is a plunger for forming a hole for fixing to the fixing boss (33) and for placing the transparent glass (19);
(35) is a power reading socket that serves as a connection terminal for the fluorescent lamp (23), and (36) is a socket that is clamped and fixed between the lower surface of the flange (34) of the partition plate and the upper surface of the fixed boss (33). Socket for power connection as at least connection terminal (3
5) It is an exposure plate arranged so as to cover the upper surface. The exposure plate (36) is a thin plate (for example, about 0.5 mm thick) made of transparent resin such as polycarbonate, and allows the light emitted from the fluorescent lamp (23) to pass upward without blocking it, and also to illuminate the light. The lower surface of the exposure plate prevents the heat from being received by the lower surface of the exposure plate, suppressing the adverse thermal effect on the transparent glass (19), and also prevents the air coming in from the opening (24) from being received by the exhaust hole (3) on the lower surface.
7) It guides you to the side. In addition, since the plate itself is made of a thin plate, it has flexibility, so when attaching or detaching the socket (35) as a charging part, the non-fixed end side is lifted and bent (see Figures 1 and 3). (See dashed line)
This allows you to perform operations. Furthermore, since the partition plate (36) is held between the lower surface of the flange and the upper surface of the boss, no special fixing device is required for the exposure plate (36). - Poor, (38) is the partition plate (1
7) is a standing wall to prevent dewdrops that have moved downward along the sloped part (21) from reaching the transparent glass (19), and is located at the lower end of the sloped part (21) and the outside of the cold air vent (39). The dewdrops trapped by the standing wall (3B) are discharged together with the returned cold air from the return cold air outlet (40) through the blast pipe (4) into the machine box (3).

On the other hand, the hood (13) surrounding the product storage chamber (12) is made of a transparent resin such as acrylic acid resin and has a plurality of transparent bodies each having a three-dimensional opening at the bottom, for example, a hemispherical shape, spaced apart from each other. The main body is arranged in multiple layers (three layers in this example), and a fixing piece protruding outward from the lower part of the transparent body located in the outermost layer is fixed to the hinge device (30). The distance between each transparent body is selected to be within a range where convection is unlikely to occur in the air layer in the space between them, and in this example, it is approximately 5 m, so that the air layer itself becomes a kind of heat insulating layer. ing.

〔Effect of the invention〕

As described in detail above, according to the present invention, the illumination chamber is disposed below the product storage chamber and the product storage chamber is illuminated from below, so that the field of view provided by the see-through member is obstructed by the illumination device. Things will go away. - On the other hand, since the ventilation room where cool air circulates is located above the lighting room, there is inevitably a temperature difference between the lighting room and the ventilation room, which increases the absolute amount of water vapor contained in the air on the lighting room side. The amount of dew is higher than that of the ventilation room, and when the fluorescent lamp is turned off, dew may concentrate on the lower surface of the translucent member that partitions the room, but this dew is caught by the dew protection plate and falls to the connection terminal of the lighting device. This eliminates the risk of electrical leakage caused by dew drops. Furthermore, since the exposure plate is formed of a transparent thin plate, it can be easily bent, and the connecting terminal can be easily attached and detached without impairing workability. Furthermore, since the exposure plate is located below the translucent member, the air warmed by the heat generated by the lighting of the lighting device can be guided to the outside by the exposure plate. It is possible to suppress the temperature rise of the member.

[Brief explanation of the drawing]

Each figure shows one embodiment of the present invention. Figure 1 is a sectional view of the main part of the display box showing the arrangement of the exposure plate, Figure 2 is an external perspective view of the showcase, and Figure 3 is the base of the display box. Part external perspective view, 4th
The figure is an exploded perspective view of the area around the hinge device of the display box. (1)...Showcase, (2)...Display box, (
11)...Base, (12)...Product storage room, (
13)...Hood, (15)...Ventilation room, (16)
)...Lighting room, (19)...Translucent member (-!-
(3-layer transparent glass), (23)...fluorescent light, (35)
... Connection terminal, (36) ... Exposure plate.

Claims (1)

[Claims] 1. A product storage room surrounded by a three-dimensional see-through member is formed in the upper part, a ventilation room for cooling the product storage room is provided in the upper part, and a lighting room with a lighting device is provided around the ventilation room and in the lower part. A box body is provided with a base formed at the bottom thereof, and a transparent member is provided below a transparent member that partitions the ventilation room and the lighting room with heat insulation and light transmission properties so as to cover the upper surface of the connection terminal of the lighting device. A showcase characterized by having an exposure plate formed of a thin plate.