JPH1114233A - Showcase having built-in refrigerator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the generation of condensate on the side surface insulating wall of a case body and the insulating wall of a ceiling surface by utilizing cleverly the waste heat of cooling air for a refrigerator mounted in a showcase. SOLUTION: A showcase having a built-in refrigerator is constituted of an air-cooled condensing unit 7 for a refrigerator machine, which is incorporated into a machine room 6 defined in the lower part of a case body 1 constituted of a heat insulating casing body, while cooling air, sucked through the front side of the machine room, is ventilated through the condensing unit. In such a showcase, at least the side surfaces and the ceiling surface of the case body are surrounded by decorative panels 9, 10 to define exhaust ducts 11 between the decorative panels and the case body while the lower end of the exhaust duct is communicated with the machine room and the exhaust port of the exhaust duct is opened at the rear end side of the ceiling surface decorative panel. According to this method, exhaust air, whose temperature is raised through the exhaust duct and the condensing unit, is conducted to flow around the circumferential wall surfaces and ceiling surface whereby the generation of condensate on the surface areas can be prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a refrigerator built-in type showcase for a reach-in type refrigeration, freezer showcase and the like.

[0002]

2. Description of the Related Art First, a conventional structure of a reach-in showcase described above is shown in FIG. In the figure, reference numeral 1 denotes a case body serving as an insulated housing configured by surrounding the upper, lower, left and right, and back surfaces with heat insulating walls; 2, a transparent glass door disposed on the front surface of the case body 1; Product display shelves arranged in upper and lower stages, 4 is a cooler (evaporator of a refrigerator) arranged in a cool air circulation duct defined inside the refrigerator, 5 is a fan in the refrigerator, 6
Is a machine room formed at the lower portion (base side) of the case main body 1. The machine room 6 is provided with an air-cooled condensing unit 7 of a refrigerator in which a compressor 7a, a condenser 7b, and an external fan 7c are combined. It has been incorporated.

[0003] With this configuration, during the cold-holding operation of the showcase, cool air circulates through the cold air through the cool air circulation duct to cool the products arranged on the product display shelf 3. on the other hand,
For the condensing unit 7 of the refrigerator, air taken in from the surroundings through a suction grill 6a arranged in front of the machine room 6 is sent to the compressor 7a and the condenser 7b to be cooled, thereby exchanging heat with the condenser. As a result, the exhaust gas whose temperature has been raised is discharged from behind the machine room 6 to the building wall 8 of the store.

[0004]

By the way, at the time of the cold operation of the showcase, the cool air in the refrigerator is cooled by the case body 1.
Since the heat is transferred through the heat insulating wall, the temperature of the outer wall surface is lower than the ambient temperature. Therefore, when the humidity of the surrounding air is high, dew condensation occurs on the outer wall surface of the case body 1, and the condensed water generated here flows down the wall surface and wets the floor surface in the store where the showcase is installed. Occurs. In addition, this dew condensation is generated not only on the side surface of the case body 1,
Also occurs on the ceiling surface. In particular, in the state where the gap between the upper front part of the showcase and the ceiling of the building installed at the store in the store is covered with a hanging wall 8a (see FIG. 4) on the ceiling side of the building, the gap of the showcase is reduced. Moisture stays in the upper space, and dew condensation easily occurs on the ceiling surface of the main body case.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and has as its object to solve the above-mentioned problems, and to utilize the exhaust heat of an air-cooled condensing unit of a refrigerator mounted on a showcase so as to provide a side surface of a case body. An object of the present invention is to provide a refrigerator-integrated showcase in which dew condensation is prevented from occurring on a heat insulating wall and a heat insulating wall on a ceiling surface.

[0006]

According to the present invention, at least a side surface of a case body,
And a ceiling panel is surrounded by a decorative panel to define an exhaust duct between the decorative panel and the case body, and a lower end of the exhaust duct is communicated with the machine room, and an exhaust port of the exhaust duct is connected to the ceiling surface. An opening is provided on the rear end side of the decorative panel, and the exhaust gas whose temperature has been raised through the condensing unit through the exhaust duct flows along the peripheral wall surface and the ceiling surface of the case body.

[0007] With this configuration, when the showcase is kept cool, the heated exhaust air that flows through the condensing unit of the refrigerator passes through the exhaust duct defined inside the decorative panel and passes through the exhaust port at the upper end. It is released to the surroundings, and during the ventilation process in this duct, the exhaust heat
The ceiling surface is prevented from dropping below the dew point, and dew condensation is effectively prevented from occurring in this surface area.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the embodiments shown in FIGS. In the drawings of the embodiment, the same members corresponding to FIG. 4 are denoted by the same reference numerals. That is, in the illustrated embodiment, the side face panel 9 and the ceiling face panel 10 cover the side wall face and the ceiling face of the case body 1 serving as the heat insulating casing.
Is attached and the upper end of the side decorative panel 9 and the ceiling decorative panel 10 are connected, and an exhaust duct 11 is defined between each decorative panel and the case body. The exhaust duct 11 communicates with the machine room 6 below the case body 1 in which the air-cooling type condensing unit 7 of the refrigerator is incorporated, and an exhaust port 10a is opened at the rear end of the decorative panel 10 on the upper side.

With such a configuration, the cooling air sucked from the surroundings through the suction grille 6a disposed in front of the machine room 6 during the cold-holding operation of the showcase exchanges heat with the condenser 7b in the course of flowing through the refrigerator condensing unit 7. After the temperature rises, the exhaust gas flows through the exhaust duct 11 along the side surface and the ceiling surface of the case body 1 as indicated by an arrow A, and is discharged from the exhaust port 10a to the outside. The heat heats the surfaces of the side wall and the ceiling wall of the case main body 1 and suppresses the wall surface from dropping below the dew point due to the cool air transmitted from the inside of the refrigerator, thereby preventing dew condensation on this surface area.

The illustrated embodiment shows an example in which decorative panels 9 and 10 are arranged on the left and right side surfaces and the ceiling surface of the case main body 1 to form an exhaust duct. The present invention can also be implemented by disposing a decorative panel and forming an exhaust duct in this area.

[0011]

As described above, according to the present invention,
Using the exhaust heat of the air-cooled condensing unit of the refrigerator installed in the machine room of the showcase, it is possible to effectively prevent condensation from forming on the side wall surface and ceiling surface of the case body, which serves as a heat insulating housing, In particular, it is effective as a measure for preventing dew condensation on the showcase in a humid condition where the hanging wall is lowered from the ceiling of the store where the showcase is installed to cover the gap between the showcase and the upper front surface.

[Brief description of the drawings]

FIG. 1 is a side view of a showcase with a built-in refrigerator according to an embodiment of the present invention.

FIG. 2 is a front view of FIG. 1;

FIG. 3 is a sectional view taken along line XX in FIG. 1;

FIG. 4 is a sectional view of a conventional structure of a reach-in showcase to which the present invention is applied;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Case main body 2 Glass door 6 Machine room 6a Suction grill 7 Condensing unit of refrigerator 9 Side decorative panel 10 Ceiling decorative panel 11 Exhaust duct

Claims (1)

[Claims] An air-cooled condensing unit of a refrigerator that defines a machine room and keeps the inside of the refrigerator cooler is built in a lower part of a case body constituted by a heat-insulated housing, and cools air taken in from a front side of the machine room. In a showcase with a built-in refrigerator, which ventilates the condensing unit, at least a side surface of the case body and a ceiling surface are surrounded by a decorative panel, and an exhaust duct is defined between the decorative panel and the case body. The lower end of the exhaust duct communicates with the machine room, and the exhaust port of the exhaust duct is opened to the rear end side of the decorative panel on the ceiling surface. Shower with built-in refrigerator, characterized by flowing along the wall and ceiling.