JP2004225938A - Refrigerator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a large-sized refrigerator for business use capable of preventing rise of temperature inside when a door is opened, and preventing food stored therein from being dried, discolored and deteriorated by forcibly circulated cold air. <P>SOLUTION: An evaporator 11 and an air blower 12 are mounted at an upper depth of this refrigerator 10, the cold air generated in the evaporator 11 is forcibly circulated through ducts 13 mounted on top and bottom, left and right, and rear faces, further a duct 13b is integrally mounted on a rear face of the door 14, and a communication port 15 is formed on a contact part of the left and right ducts 13 and the duct 13b at the rear side of the door, so that the cold air flows to the duct 13b at the rear side of the door 14, when the door is closed. Further a drum type blower 16 is mounted on the communication port 15 at a main body side to forcibly send the cold air to the duct 13b mounted at the rear side of the door, so that the cold air acts as an air curtain when the door is opened. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a forced air circulation type commercial refrigerator in which an air curtain acts on an opening of a refrigerator body when a door is opened, and cools from six surfaces including a back surface of the door when the door is closed.
[0002]
[Prior art]
Patent Literature 1 discloses the prior art in which the inside of a large refrigerator for business use is cooled from the top, bottom, left, and right and front six sides.
[0003]
[Patent Document 1]
JP 2001-248949 A (Abstract)
[0004]
[Problems to be solved by the invention]
As shown in FIG. 2, the prior art of the above-mentioned Patent Document 1 discloses "means for providing a cold air forced circulation type storage 1 in which the temperature unevenness in the article storage chamber 2 can be reduced and the drying of food on the shelf 3 is suppressed. In the closed state of the open / close door 4, the air curtain is stopped and cool air is supplied from the cool air supply hole 5, and in the open state of the open / close door 4, an air curtain is formed in addition to the cool air supply from the cool air supply hole, The wind speed in the article storage room 2 is set to approximately 0.5 m / sec. "
[0005]
It is recognized that the above prior art is characterized in that when the door is opened, an air curtain acts, and when the door is closed, cold air is forcibly circulated at a wind speed of 0.5 m / sec.
[0006]
However, the back side of the door (inside the refrigerator) does not have a duct through which cold air circulates, as can be seen in the drawing, so that the temperature behind the door is higher than in other parts, and the cold air that is forcibly circulated cannot contain the contained food. In this case, there is a problem that drying in the part is remarkable and discoloration and deterioration of the contained food become serious.
[0007]
In view of the above-mentioned problem, according to the present invention, when the door is opened, an air curtain acts on the opening of the refrigerator, and when the door is closed, the temperature on the back side of the door is changed to another inner surface (top, left, right, rear inner surface). It is an object of the present invention to provide a large-sized commercial refrigerator in which the cold air forcedly circulated does not directly hit the stored food to prevent drying, discoloration and deterioration of the stored food.
[0008]
[Means for Solving the Problems]
In order to solve the above-mentioned problems, the present invention provides a commercial refrigerator in which cool air generated from an evaporator in a refrigerator is forcibly circulated by a blower, and a duct for circulating cool air is arranged at least in the top, left, right, and rear sides of the refrigerator. In addition, a duct is also provided on the back surface of the door, and when the door is closed, the arranged duct and the duct provided on the back side of the door are in a communicating state (Claim 1). A blower is provided on a main body side of a communication portion between a duct provided on the inner surface of the refrigerator and a duct provided on the back side of the door (claim 2).
[0009]
According to the present invention configured as described above, when the door of the refrigerator is closed, a duct communicating with the duct on the main body side is provided on the back side of the door, so that the inside of the refrigerator is upside down, from the left and right and the front and rear six sides. Since the cool air that is uniformly cooled and forcibly circulated does not directly hit the stored food, drying, discoloration and deterioration can be suppressed, and when the door is opened, the temperature inside the refrigerator is prevented from rising by the action of the air curtain.
[0010]
BEST MODE FOR CARRYING OUT THE INVENTION
Next, an embodiment of the present invention will be described with reference to the drawings. As shown in FIG. 1, an evaporator 11 and a blower 12 are installed in the upper part of the refrigerator 10, and cool air generated in the evaporator 11 is forcibly circulated through ducts 13 provided on the top, left, right, and rear sides of the refrigerator. However, a duct 13b is also provided integrally on the back surface of the door 14, and a communication port 15 is opened at the top and bottom, where the left and right ducts 13 and the duct 13b on the back side of the door are in contact. 14 also flows to the duct 13b on the rear side.
[0011]
A drum-type blower 16 is installed in the communication port 15 on the main body side, and cool air is forcibly fed into a duct 13b provided behind the door.
[0012]
As shown in the drawing, when the inside of the refrigerator is divided into an upper stage and a lower stage, a duct 13 is also provided in the divided portion, communicated with a duct 13b behind the door 14, and a drum type blower 16 is provided.
[0013]
When the door 14 is closed, the cool air generated in the evaporator 11 circulates through the duct 13 provided on the top, bottom, left and right, and rear of the refrigerator 10 and the duct 13b provided on the back side of the door. And cool the inside of the refrigerator evenly.
[0014]
In addition, since the temperature rise on the back of the door is suppressed, and the cold air that is forced to circulate does not directly hit the contained food, drying, discoloration and deterioration are suppressed, and when the door is opened, the inside of the refrigerator is acted by the action of the air curtain. Temperature rise can be prevented.
[0015]
【The invention's effect】
As described above, according to the present invention, when the door of the refrigerator is closed, a duct communicating with the duct on the main body side is provided on the back side of the door, so the interior of the refrigerator is uniform from the top, left, right and front and rear six sides. The drying, discoloration and alteration are suppressed because the cold air that is cooled and forcedly circulated does not directly hit the contained food, and when the door is opened, the temperature inside the refrigerator can be prevented from increasing by the action of the air curtain.
[Brief description of the drawings]
FIG. 1A is a longitudinal sectional view of a refrigerator according to the present invention, and FIG. 2B is a transverse sectional view of the refrigerator. FIG. 2 is a longitudinal sectional view of a refrigerator according to the prior art.
10 Refrigerator 6, 11 Evaporator 7, 12 Blower 8, 9, 13 Duct (on the main unit side)
13b Duct (behind door)
14 Door 15 Communication port 16 Drum type blower

Claims (2)

In a commercial refrigerator that forcibly circulates cool air generated from an evaporator in a refrigerator by a blower, at least the top, bottom, left and right and a duct for cooling air circulation in the refrigerator are provided, and a duct is also provided on the back surface of the door, A large-sized refrigerator for business use, wherein when the door is closed, the provided duct and the duct provided on the back side of the door are in communication with each other. A large-sized commercial refrigerator, wherein a blower is provided on a main body side of a communication portion between a duct provided on an inner surface of the refrigerator and a duct provided on a back side of a door.

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