JPH055424Y2 - - Google Patents

Description

[Detailed description of the invention] [Purpose of the invention] Industrial application field The present invention is a cooling case that has a product storage area surrounded by a see-through member in the upper part and a ventilation chamber and a lighting room in the lower part. More specifically, the present invention relates to a method for removing dewdrops adhering to packing disposed at the lower end of a transparent member by using heat generated by lighting of a lighting device.

PRIOR TECHNOLOGY Many conventional show cases of this type have been proposed in which the product storage area is surrounded by a transparent material in order to make it easier to check the stored products from the outside.
In Utility Model Publication No. 62-16621, it is surrounded by four transparent glasses. The publication was devised to prevent dew condensation on the surface of transparent glass, and was designed to blow hot air generated in a machine room located at the bottom onto the outer peripheral wall of the refrigerator compartment. It is something.

Problems to be solved by the invention In the case of the above-mentioned Japanese Utility Model Publication No. 16621/1982, warm air (warmed air) is This method blows air (wind) onto the outer peripheral wall of the refrigerating room, that is, the outer surface of the transparent glass, and the prerequisite is that the machine room and the refrigerating room are constructed integrally. For this reason, when this show case is placed on a stand, the weight of the mechanical parts is added to the top of the stand, which may cause the top of the stand to warp after long-term use, or in severe cases, it may not be able to withstand the weight and be damaged. It was hot. Therefore, in order to reduce the weight applied to the top surface of the table, if a separate type of case is used in which only the machine room is separated and placed separately, in order to use the warm air in the machine room for dew prevention, it is necessary to separate the refrigerator compartment from the machine room. A duct and a blower are required to guide hot air to the outside surface of the transparent glass, and since the duct is a separate component, its placement and connections make it look bad and lead to higher costs. . On the other hand, installing a heater on the glass surface to prevent dew is also being considered.
In this case, there was a problem that the heater was exposed on the glass surface, resulting in a poor appearance.

Therefore, the present invention focuses on the fact that the air is heated by the lighting equipment that is essential for improving the display effect of products in the show case, and utilizes this air to heat the see-through member and It is an object of the present invention to provide a cooling case in which the packing for airtight maintenance, which is attached to the lower end of a see-through member, is dew-proofed.

[Structure of the idea]

Means for Solving the Problems The cooling show case of the present invention has a product storage area surrounded by a three-dimensional see-through member formed at the top thereof, and a ventilation chamber for cooling the product storage area provided at the upper level, which is surrounded by the ventilation chamber. and a box body formed at the bottom of the base with a lighting chamber for illuminating the product storage section from below, and a seal disposed around the entire lower end of the transparent member between the transparent member and the base. The packing that performs this is heated by heat transfer from the lighting room side.

Function The air heated by the lighting lights placed at the bottom of the base is guided to the upper part of the lighting room and warms the bottom surface of the base. The heat transferred from this heated base warms the packing provided around the entire lower edge of the hood.

Embodiments Hereinafter, embodiments of the present invention will be described with reference to FIGS. 1 to 3.

1 is a closed display box 1 having a product storage section 12;
0, a machine box (not shown) that houses mechanical parts such as a compressor, condenser, and evaporator and is formed separately from the display box 10, and allows air to circulate between the display box 10 and the machine box. It is a separate type case made up of a communicating blower pipe (not shown), and can be used for freezing, refrigeration, ice temperature, etc. depending on the type of product to be stored and the temperature range to be controlled. In this embodiment, a refrigerated case (hereinafter referred to as "show case") will be explained as an example. However, the present invention is not limited to separate-type show cases, but is generally directed to cooling show cases.

The display box 10 has a roughly spherical shape,
A base 11 constituting approximately the lower half thereof and having a generally circular shape when viewed from above.
and a product storage section 12, which forms the upper half and also serves as a cooling chamber, and has a turntable 44 at the bottom as a display stand for placing products.
The product storage section 12 has a transparent member (hereinafter referred to as a hood) 50 formed of a transparent body having a three-dimensional, for example, cubic curved surface (approximately hemispherical in this example) with an opening at the bottom.
A packing 52 for sealing between the hood 50 and the base 11 is provided around the entire lower end thereof using a transparent resin such as acrylic acid resin as the transparent body.

The base 11 has a ventilation chamber 13 in the upper stage and a lighting chamber 14 in the lower stage, and both chambers 13, 14 are formed in the base 11.
is thermally divided by a heat insulating material 15A and a light-transmitting member having heat insulating properties, such as transparent glass 15B.
The ventilation chamber 13 includes a cold air supply section 16 as a high-pressure space that introduces selected air (this is referred to as cold air) through a blower pipe that is cooled by the machine box and guides this cold air to the product storage section 12; A cold air return section 17 as a low-pressure space in which air after cooling the product storage section 12 (this is referred to as return cold air) is collected and guided to the blast pipe is separately formed.

To explain an example of this ventilation chamber 13, the cold air supply section 16 sequentially turns the cold air introduced from the cold air inlet 42 provided on one side toward the center part, and connects it to the turntable through the rising opening 40 formed at the center of the upper surface. 44, and a first standing wall 48A and a second standing wall 48B are erected, and the compatible wall 4
An upper plate having a raised opening 40 is disposed on the upper surface of 8A, 48B (in this example, it is integrally molded with the raised wall). The cold air introduced from the cold air inlet 42 here is
The air outlet is oriented along the second vertical wall 48B, moves to the center while sequentially turning along the first vertical wall 48A, is guided to the lower surface of the turntable 44 through the vertical opening 40, and is formed in the turntable 44, which will be described later. 58 into the product storage section 12.

The cold air return section 17 collects the returned cold air from a suction port 59 formed on the turntable 44, which will be described later, and rotatably holds the hood 50 with a hinge section 51, and a partition plate 45 that receives the lower end of the hood 50. Gradually pointing downward, the third standing wall 45B
The cold air is guided inward while being rotated sequentially on the outer surface of the
The cold air is led out to the blast pipe through a return cold air outlet 49 arranged in parallel with the cold air inlet 42 . Further, it is desirable that the members constituting the cold air supply section 16 and the cold air return section 17 be made of a translucent material, such as a milky white resin. In addition, an annular groove 4 is formed around the upright opening 40.
1 is formed.

On the other hand, the lighting room 14 is defined by a partition plate 45 that rotatably holds and abuts the hood 50, a base body 11A that forms the outer shape of the base 11, a heat insulating material 15A, and a transparent glass 15B. , a lighting lamp, for example, an annular fluorescent lamp 46, which is a part of the lighting device, is installed in the lighting room 1.
It is arranged approximately in the center of the bottom of 4. and fluorescent light 4
Using the central space surrounded by 6, various electrical components such as glow lamps and ballast lights are arranged. Further, on the lower surface of the horizontal portion 45A of the partition plate 45 that receives the packing 52, a heater wire 53 which is energized when the fluorescent lamp 46 is turned off is attached in a ring shape. Furthermore, the upper part of the base main body 11A, for example, a hood 50
A vent hole 54 for discharging warm air is formed in the vicinity of the hinge portion 51 that allows rotation. Also,
The transparent glass 15 is energized when the fluorescent lamp 46 is turned off on the side of the lighting chamber 14 where the transparent glass 15B is placed.
A heater wire 55 is arranged in a ring shape to prevent dew condensation on the lower surface of B.

A container (referred to as a beverage container) containing a sales product such as a medicinal solution or a soft drink is placed on a turntable 44 located at the bottom of the product storage section 12.
(not shown), but when a large number of beverage containers are placed, it has a product partitioning function that reliably forms gaps between the beverage containers, and also allows the beverage containers to be placed side by side. The turntable 44 is configured so as to function as a shelf by changing the height position of the bottom receiving part to make it easier to check from the outside. That is, the turntable 44 has a circular shape in plan view, and is formed to have a spherical shape (to be more specific, a curved surface of a part of a sphere) in side view so that the center is highest and the height decreases from the center to the periphery. It is rotatably held by a rotation auxiliary member 56 at the bottom thereof.

Prevention of dew condensation at the bottom of the hood 50 will be explained based on the above configuration.
The cool air directed upward at the turntable 44
The liquid is blown out from the air outlet 58 into the product storage section 12 and guided to the suction port 59 through the gap between the beverage containers. At this time, the cold air comes into contact with the beverage container, thereby cooling the beverage container and the air within the product storage section 12. A temperature difference between the air inside the product storage section 12 and the outside air may cause dew condensation on the outer surface of the hood 50. However, in the show case 1 of this example, since the illumination light 46 is disposed at the bottom of the base 11 constituting the lower part of the display box 10, the transparent glass 15B and the ventilation chamber 13 are illuminated by lighting the illumination light 46. Product storage section 1 through
In addition to illuminating the lighting lamp 2 from below, the illumination lamp 4
The air in the lighting room 14 is gradually warmed by the light emitted by the lamp 6, and the warmed air (hereinafter referred to as warm air)
moves upward in the lighting room 14 by natural convection,
It accumulates on the bottom surface of the transparent glass 15B, and the transparent glass 15
In addition to preventing dew condensation on the lower surface of B, the partition plate 45
The water accumulates on the lower surface of the horizontal portion 45A, warming the horizontal portion 45A. For this reason, the packing 52 attached to the lower end of the hood 50 comes into contact with the horizontal portion 4.
It is heated at 5A, and the dewdrops adhering to the packing 52 are evaporated by the opening/closing operation of the hood 50 and natural descent. On the other hand, warm air accumulated on the lower surface of the horizontal portion 45A is gradually discharged from the vent 54 formed in the base body 11A, rises along the outer surface of the base body 11A and the outer surface of the partition plate 45, and is guided to the lower outer surface of the hood 50. The lower part of the hood 50 is heated to evaporate and vaporize the attached dew droplets. That is, in this example, the hinge portion 51 that allows the hood 50 to rotate freely.
Since the vent 54 is formed near the hood 50, the vicinity of the hinge part 51 in the packing 52 where dew drops tend to collect can be heated from below and from the outside by opening and closing the hood 50, thereby preventing evaporation of dew drops. becomes easier to carry out. In addition, the air in the lighting room 14 is warmed by the lighting of the lighting lamps 46, and since the warmed air naturally rises inside the lighting room 14, a blower is used to transfer the warm air. Since it is not necessary to provide this, there is no problem in minimizing the height of the base 11, and it is possible to lower the height of the base 11. Furthermore,
A vent 5 is provided to prevent warm air from being trapped in the lighting room 14 and increasing the temperature of cold air in the ventilation room 13.
Warm air discharged from the hood 50 can be used to prevent fogging of the hood 50, and anti-fogging and dew-proofing can be achieved with a very simple configuration.

On the other hand, when the lighting lamp 46 is turned off, the heater wire 5
3 and 55 are energized, dew droplets adhering to the packing 46 and dew adhering to the lower surface of the transparent glass 15B can be similarly evaporated.

[Effect of idea]

As described in detail above, according to the present invention, the lower surface of the base is warmed by the lighting indoor air warmed by the lighting of the lighting room that illuminates the product storage section formed in the upper part from below, and the upper surface of the base is heated. By warming the packing of the contacting transparent parts through indirect heat transfer,
Since the dewdrops adhering to the packing can be evaporated, it is possible to suppress the dewdrops from falling due to the opening/closing operation of the transparent member.

[Brief explanation of the drawing]

Each figure shows one embodiment of the present invention. Figure 1 is an enlarged cross-sectional view of the main part showing the flow of warm air and heat transfer in the lighting room, Figure 2 is a vertical cross-sectional view of the display box of the cooling show case, Figure 3 is an exploded perspective view of the display box. 1... Cooling show case, 10... Exhibition box, 1
1... Base, 12... Product storage section, 13... Ventilation room, 14... Lighting room, 44... Turntable,
45... Partition plate, 45A... Horizontal part, 46... Fluorescent lamp, 50... Hood, 51... Hinge part, 52
...Packing, 53...Heater wire, 54...Vent.

Claims (1)

[Scope of utility model registration request] A product storage section surrounded by a three-dimensional see-through member is formed in the upper part, and a ventilation chamber for cooling the product storage section is provided in the upper stage, and the product storage section is illuminated from below around the ventilation chamber and in the lower stage. A box body is provided with a base in which a lighting chamber is provided, and a box body is formed at the bottom of the base, and a packing that is arranged around the entire lower end of the transparent member and seals between the transparent member and the base is installed from the lighting room side. A cooling case characterized by heating through heat transfer.