JPS608296Y2 - storage - Google Patents

Description

[Detailed description of the invention] This invention relates to a storage where the floor of the storage and the lower surface of the entrance/exit opening are located on approximately the same plane. The purpose is to prevent condensation on the

Figure 1 is a perspective view of the opening/closing door part of the storage warehouse according to the present proposal.
2 is the heat insulating side wall configuring the cold storage, and 2 is the heat insulating side wall 1.
This is an insulated door structure built into the

The heat insulating structure 2 is composed of a heat insulating frame 4 forming an opening 3 and a heat insulating opening/closing door 5 closing the opening 3.

The opening/closing door 5 is attached to the opening 3- side with a hinge metal fitting, and when closed, is locked in the closed state by a latch body 6 attached to the opening 3- side and the opening/closing door 5- side.

The opening/closing door 5 and the opening 3 are sealed on both sides and in the upper part by pressing gaskets attached to the side parts of the opening/closing door 5 into pressure contact with the inner peripheral part of the opening 3, and on the lower part, the opening/closing door 5 is sealed. This is done with a gasket 8 that slides into contact with the floor surface 7 attached to the lower surface.

A plate 9 is attached to the floor surface 7 to form a smooth surface that prevents the gasket 8 from being scraped off by sliding contact.

In the storage described above, the gasket attached to the lower surface of the opening/closing door 5 has conventionally been constructed as shown in FIG. 2.

The opening/closing door 5 is composed of a front plate 10, a rear plate 11, and a heat insulating material 12 filled with foam between the two plates. The letter-shaped elastic packing 14 was attached to the lower surface of the opening/closing door 5 by a screw 16 after a presser fitting 15 was applied to the inside thereof.

An anti-dew heater 17 is embedded in the lower surface of the plate 9 facing the heat insulating space 13.

However, by opening and closing the opening/closing door 5, the air trapped in the heat insulating space 13 is exchanged, and after opening, the air in the heat insulating space 13 is heated again by the anti-condensation heater 17, so the heat inside the storage is Condensation was easily transmitted to the outside of the refrigerator, and dew condensation occurred on the outside of the lower part of the opening/closing door 5 and on the outside of the gasket 14.

Furthermore, even if the opening/closing door 5 is left closed for a long period of time,
Since the dew-proofing heater 17 is set to be very weak so as not to have any influence on the inside of the storage, it was not possible to completely prevent dew condensation.

This proposal was developed in view of the above points, and its specific configuration is such that the lower surface of the opening sealed by the opening/closing door and the floor of the storage room are located approximately on the same plane, and the lower surface of the opening/closing door is The above drawbacks were solved by forming a plurality of insulating spaces between the sealing gasket attached to the opening and the lower surface of the opening, and embedding a heater in the lower surface of the opening to warm the air sealed in the insulating space. It provides storage.

The present invention will be explained below based on an embodiment shown in FIG.

Note that structural parts that are the same as those of the prior art are designated by the same reference numerals and explanations will be omitted.

A step part 20 is formed at the lower part of the inner surface of the opening/closing door 5 to reduce the thickness of the lower part of the door, and the gasket 14 is attached to the opening/closing door 5.
is attached to the lowermost surface of the refrigerator to form a heat insulating space 13 outside the refrigerator.

A plate-shaped packing 21 is installed on the inner surface of the opening/closing door 5, covering the cut-off portion 20 and having a lower end slidingly in contact with the plate 9.
This plate-shaped packing 21, the step portion 20, and the packing 14
A heat insulating space 22 inside the refrigerator is formed between the door 5 and the opening/closing door 5.
The combined thickness of the lower thin wall part and the inside insulation space 22, the combined thickness of the outside insulation space 13 formed by the packing 14 and the inside insulation space 22, and the thickness of the opening/closing door 5. The thickness of the thick portion is approximately equal to that of the thick portion.

The plate-shaped packing 21 is fixed with screws 24 via a presser plate 23.

A hole 25 formed in the packing 21 through which the screw 24 is inserted is formed in a vertically elongated manner, and the mounting position can be adjusted.

An anti-dew heater 17 is provided on the floor surface 7 under the plate 9 corresponding to the outer heat insulating space 13 and the inner heat insulating space 22.
26 are buried respectively, and the capacities of the heaters 17 and 26 are set so small that the influence of the heaters 17 and 26 does not extend to the interior of the refrigerator.

As mentioned above, the gasket 14 and the plate-shaped gasket 21 form the outside insulation space 13 and the inside insulation space 22 at the bottom of the opening/closing door. The thickness of the opening/closing door 5
Since the thickness is approximately the same as that of the central part of the plate-shaped packing 2,
1, it is possible to prevent the inner side of the refrigerator from being exposed to the cold air inside the refrigerator, and heat conduction from the interior of the refrigerator to the outside of the refrigerator is first alleviated in the refrigerator inner insulation space 22, and then the thin wall In other words, it is relieved in two stages, and therefore the coefficient of heat transmission from inside the refrigerator to the thin wall surface of the opening/closing door 5 and the surface of the packing 14 is reduced. In addition, since the dew-proof heaters 17 and 26 heat the air in both heat-insulating spaces to enhance the heat-insulating effect, it is possible to prevent dew condensation from occurring on the thin wall surface and the gasket surface. Since the thermal energy of the anti-dew heater 26 remains in the insulated space inside the refrigerator, it does not lead to an increase in the refrigeration load inside the refrigerator.

Furthermore, a vertically long hole 25 is formed in the upper part of the plate-shaped packing 21 for attachment to the rear plate 11, so that the plate-shaped packing 21 may be worn out due to frequent opening and closing of the opening/closing door 5, or if the broken packing is When a gap is generated between the lower end and the upper surface of the plate 9 due to the bending of the plate 21, the hole 25 can be used to move the plate-shaped packing 21 downward and bring the lower end into contact with the plate 9. By adjusting the mounting position of the plate-shaped gasket 21, it is possible to maintain good airtightness of the inside insulation space 22 for a long period of time.

As described above, the present invention forms an insulating space inside the refrigerator by covering the step part formed at the lower part of the inside of the opening/closing door with a plate-shaped packing, and provides a barrier to the floor facing the insulating space inside the refrigerator. Since the storage is equipped with a dew heater, the plate-shaped packing can prevent the internal side surface of the thin walled part at the bottom of the opening/closing door from being exposed to the cold air inside the refrigerator, and the inside insulation space and the thin walled part can be prevented from being exposed to the cold air inside the refrigerator. Alternatively, the thickness of the insulation space at the bottom of the opening/closing door including the insulation space outside the refrigerator is approximately equal to the thickness of the upper part of the opening/closing door, and the heat flow rate from the inside of the refrigerator to the outside of the refrigerator can be reduced. Since the insulated space inside the refrigerator is heated by the heat generated by the dew prevention heater, the heat transmission coefficient can be further reduced, and dew condensation does not occur on the thin wall surface of the opening/closing door and the sealing gasket surface. , it has great practical effects.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of an opening/closing door portion of a storage, FIG. 2 is a sectional view of a main part showing a conventional structure, and FIG. 3 is a sectional view of a main part of the present invention. 3...Opening, 5...Opening/closing door, 7...
... Floor surface, 13 ... Insulation space outside the warehouse, 14.
... Packing, 17゜26 ... Anti-dew heater, 20 ... Stepped section, 21 ... Plate-shaped packing, 22 ... Inside the chamber Insulated space.

Claims (1)

[Scope of Claim for Utility Model Registration] 1. A step is formed at the lower part of the inside side of the opening/closing door, and the lower part of the step is formed into a thin walled part, and the lower surface of the opening sealed by the opening/closing door is formed. A sealing gasket that forms an outside heat insulating space between the compartments is attached to the lower surface of the thin part, and an anti-dew heater that heats the outside heat insulating space is provided on the floor, wherein the inside surface of the opening/closing door A plate-shaped packing attached to the lower part and having a lower end in sliding contact with the floor surface, covering the step part and forming a heat insulating space inside the refrigerator at the bottom of the opening/closing door, and a floor surface facing the heat insulating space inside the refrigerator. A storage warehouse characterized in that it is equipped with a dew-proof heater. 2. The storage according to claim 1, which is a registered utility model, characterized in that a vertically elongated hole is formed in the upper part of the plate-like packing.