JP2531848Y2 - Showcase - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a case having a cooler provided with a defrosting device.

[0002]

2. Description of the Related Art Conventionally, this kind of case, for example, the one shown in FIG. 2 as a release case is known (Japanese Utility Model Application Laid-Open No. 61-110069).

This case has a product outlet 1 at the front.
And a heat-insulating case body 2 provided with. Inside the case main body 2, there is provided a product storage room 3 for storing products and a cooler room 4 disposed below the product storage room 3. A cooler 6 equipped with a defrosting heater 5 is provided. The cooler room 4 is provided on the rear side and the upper side of the case body 2.
And a blower 8 is installed in the duct 7.

[0004] The air cooled by the cooler 6 by the blower 8 is blown upward through the duct 7, and an air curtain is formed on the front surface of the product take-out port 1 so that the inside of the product storage chamber 3 is formed. It is cooling (solid arrow in the figure). On the other hand, when performing defrosting of the cooler 6, the drive of the blower 8 is stopped, electricity is supplied to the defrosting heater 5, and the defrosting of the cooler 6 is performed by electric heat.

[0005]

Although the defrosting operation causes warm air to accumulate in the cooler room 4, the temperature of the glass body 9a of the opening / closing door 9 installed in the product outlet 1 becomes high due to heat entering from the outside. Therefore, warm air in the cooler room 4 rises toward the product storage room 3 (broken arrow in the figure).

However, when the warm air rises into the product storage room 3 as described above, the warm air comes into contact with the cool air in the product storage room 3 and condenses into a mist state. In the product accommodating chamber 3 and degrades the see-through effect. Further, there is a problem that the condensed water adheres to the product due to the condensation of the warm air.

SUMMARY OF THE INVENTION In view of the above-mentioned conventional problems, it is an object of the present invention to suppress a rise in warm air due to defrost into a product storage room, to prevent a reduction in a see-through effect and to prevent condensed water from adhering to products. -To provide a case.

[0008]

According to the present invention, in order to solve the above-mentioned problems, a product storage room for storing products, and a defrosting device below the product storage room are provided in a case body. A cooler chamber provided with a cooler, wherein the cool air cooled by the cooler is raised through ducts extending to the rear side and the upper side of the case body, and A defrosting device for heating the cooler and a part of the defrosting device, wherein the defrosting device heats the cooler and circulates from the front side of the main body toward the cooler room. Is arranged on the duct side away from the cooler.

[0009]

According to the present invention, during the defrosting operation, the defroster heats the cooler and removes frost adhering to the cooler. On the other hand, since a part of the defrosting device is arranged on the duct side during the defrosting operation, the temperature on the duct side increases, and an upward airflow toward the duct is formed. Therefore, the warm air staying in the cooler room is attracted by the ascending airflow and flows toward the duct, so that the flow of the warm air into the product storage room is suppressed.

[0010]

FIG. 1 shows an embodiment of a case according to the present invention, and shows a cross-section of a releasable case. The same components as those in FIG. 2 showing the conventional example are denoted by the same reference numerals.

That is, 1 is a product take-out port formed on the front surface of the case body 2, 3 is a product accommodating room in which product shelves 3a are installed in a plurality of stages in the case case 2, and 4 is a product storage room. A cooler room provided below the product storage room 3, a cooler 6 provided in the cooler room 4, and a cooler room 7 extending to the rear and upper portions of the case body 2 A duct communicating with 4,
8 is a blower installed in the duct 7, 9 is a product outlet 1
The opening / closing door 9a is a glass body attached to the opening / closing door 9.

Reference numeral 10 denotes a defrosting head which is a characteristic configuration of the present invention.
It is. The defrost heater 10 has an electric heating structure mounted below the cooler 6, and removes frost adhering to the cooler 6 by supplying electricity to the defrost heater 10. Also,
A part of the defrost heater 10 is arranged on the duct 7 side apart from the cooler 6, and heats the duct 7 side of the cooler room 4.

According to this embodiment, during the cooling operation, the cool air cooled by the cooler 6 passes through the duct 7 to the front of the product storage chamber 3 as indicated by the solid line arrow in the same manner as in the conventional example. After being blown out, it is returned to the cooler 6 again to cool the product storage chamber 3.

On the other hand, when a defrosting operation is performed to remove frost adhering to the cooler 6, the driving of the blower 8 is stopped and the defrosting heater 10 is energized for a predetermined time. This allows
The frost of the cooler 6 is removed by the heat generated by the defrost heater 10. Further, the heat generated by the defrost heater 10 causes the cooling chamber 4
The inside is heated and the warm air rises (dashed arrow in the figure). Here, since a part of the defrost heater 10 is arranged on the duct 7 side apart from the cooler 6, the temperature of the duct 7 side of the cooler room 4 becomes high, and the rising air current flows to the duct 7 side. Cause. Thereby, the warm air staying in the cooler room 4 is attracted by the rising airflow and flows toward the duct 7.

Therefore, the warm air staying in the cooler room 4 does not flow toward the product take-out port 1 side. No condensed water adheres to 9a.

In the above-described embodiment, the defrosting of the cooler 6 is performed by the electric heat of the defrosting heater 10. However, a hot gas defrosting circuit is installed in the refrigerating circuit of the cooler 6, and the cooler 6 is defrosted. It is needless to say that the present invention can also be applied to a device that is defrosted by a refrigerant circulating in the air.

[0017]

[Effects of the Invention] As described above, according to the present invention,
During the defrosting operation, the warm air staying in the cooler room is attracted by this ascending airflow and flows toward the duct side. This has the advantage that the adhesion of water can be prevented.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a case according to the present invention.

FIG. 2 is a sectional view of a conventional case.

[Explanation of symbols]

Reference numeral 2 shows a case body, 3 a product storage room, 4 a cooler room, 6 a cooler, 7 a duct, and 10 a defrost heater.

Claims (1)

(57) [Scope of request for utility model registration] A main body of the case having a merchandise accommodating chamber for accommodating merchandise and a cooler chamber provided with a cooler provided with a defrosting device below the merchandise accommodating chamber; The cool air cooled by the cooler is raised through ducts extending to the rear side and the upper side of the case body, and further circulated from the front side of the case body toward the cooler room. In the case for cooling the product storage chamber, the defroster heats the cooler and a part of the defroster is arranged on the duct side apart from the cooler. A case, characterized in that: