JP2002031465A - Refrigerator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electric refrigerator in which energy is saved by preventing random reflection of chill blowing against the left and right sidewalls in a chill distribution duct and producing a smooth flow where the chill supply resistance is reduced thereby enhancing the chill supply efficiency of the chill distribution duct. SOLUTION: In an electric refrigerator comprising a chill distribution duct 13 provided with chill delivery passages 13a, 13b and 13c for delivering chill generated from an evaporator, respectively, to a refrigeration compartment, a switching compartment and a freezing compartment through a fan 11, chevrony protrusions 13d projecting inward are formed on the left and right sidewalls of the chill distribution duct 13 at positions corresponding to the fan 11.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric refrigerator, and more particularly, to a structure for efficiently flowing cool air in the cool air distribution duct.

[0002]

2. Description of the Related Art In a conventional electric refrigerator, as shown in FIG. 1, for example, the inside of a heat insulating box 1 composed of an outer box 2, an inner box 3 and a heat insulating material 4 is cooled by a plurality of heat insulating partitions 5. 6
And a switching room 7, a vegetable room 8, and a freezing room 9 in which a cooling temperature as a storage room can be switched.
A cool air distribution duct 13 is provided behind the vegetable compartment 8 and an evaporator (cooler) 10 for generating cool air is installed at the back of the cool air distribution duct 13. An evaporator cover 12 is erected, and a blower fan 11 is provided opposite to an opening 12a formed in the upper part of the evaporator cover 12. In front of the evaporator cover 12, the cool air generated by the evaporator 10 is insulated. A cool air delivery passage 13a for sending the cold air through the partition 5 to the refrigerator compartment 6;
A cooling air delivery path 13b for sending to the switching chamber 7 and a cooling air delivery path 13c for sending to the freezing chamber 9 are provided.
Below, a return cold air passage 14 for guiding the return cool air from the freezing chamber 9 through the heat insulating partition 5 was provided.

FIG. 5 is an enlarged sectional view (A) of an essential part of an electric refrigerator showing a conventional example, and an enlarged perspective view (B) of an essential part. The left and right side walls inside the cold air distribution duct 13 are flat. ,
The cool air from the blower fan 11 hit the flat wall and was led to the cool air delivery passages 13a, 13b and 13c, respectively.

However, in the above configuration, there is a problem that the cool air from the blower fan hits the flat left and right side walls inside the cool air distribution duct and is irregularly reflected, so that the cool air may not flow efficiently to the plurality of cool air delivery passages. Was.

[0005]

SUMMARY OF THE INVENTION In view of the above-mentioned problems, the present invention does not irregularly reflect cold air hitting the left and right side walls inside the cold air distribution duct, so that a smooth flow with reduced blowing resistance is achieved. It is an object of the present invention to provide an electric refrigerator in which the air distribution efficiency of the cold air distribution duct is increased to save energy.

[0006]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention solves the above-mentioned problem by providing a heat insulating partition in which a heat insulating material is filled between an outer box and an inner box by a heat insulating partition, a plurality of storage compartments. Compartment, a freezer compartment, etc., a cold air distribution duct is provided behind the storage room or the freezer compartment, an evaporator is provided at the back of the cold air distribution duct, and an evaporator cover is set up between the front and the bottom of the evaporator. A blower fan is provided opposite to an opening formed in the upper part of the evaporator cover, and in front of the evaporator cover, the cool air generated by the evaporator is passed vertically through the heat insulating partition to the refrigerator compartment. An electric refrigerator provided with a cool air delivery passage for delivering to the storage room and the freezing room, and having a return cool air passage for guiding return cool air from the freezing room through the heat insulating partition below the evaporator. Corresponds to the position of the blower fan in the distribution duct It has a structure in which a protrusion protruding horizontally to each inwardly to the left and right side walls that.

Further, the positions of the left and right convex portions are changed according to the necessity of cold air.

[0008] Further, the material of the projection is a synthetic resin material.

It is to be noted that the convex section has a vertical cross-sectional shape of a mountain shape.

The vertical position of the projection is shifted from the horizontal plane passing through the axis of the blower fan by a predetermined distance.

[0011] The width of the base end of the projection is made equal to the diameter of the blower fan.

Further, the projection is formed integrally with the cold air distribution duct.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below based on embodiments with reference to the accompanying drawings. FIG. 1 is a side sectional view showing a schematic configuration of an electric refrigerator according to the present invention, and FIGS. 2 to 4 are main part enlarged sectional views showing an embodiment of the electric refrigerator according to the present invention. Here, the same reference numerals are used for the same parts as in the conventional example.

In FIG. 1, reference numeral 1 denotes a heat insulating box comprising an outer box 2 made of a steel plate, an inner box 3 made of a synthetic resin, and a heat insulating material 4 filled between the two. 5, the compartment is divided into a refrigerator compartment 6, a switching compartment 7 as a storage compartment, a vegetable compartment 8, and a freezing compartment 9 in order from the top, and a cold air distribution duct 13 is provided behind the switching compartment 7 and the vegetable compartment 8; An evaporator (cooler) 10 that generates cool air at the back of the cool air distribution duct 13
An evaporator cover 12 is provided between upper and lower sides of the evaporator 10 and a blower fan 11 for forcibly circulating the generated cool air facing the opening 12a formed in the upper part of the evaporator cover 12.

In front of the evaporator cover 12, the evaporator
A cool air delivery path 13 for sending cool air generated at 10 and sent out by the blower fan 11 to the refrigerator compartment 6 through the heat insulating partition 5.
a, a cool air delivery passage 13b to be sent to the switching room 7, the freezing room 9
And a return path 14c for guiding the return cool air from the freezing chamber 9 through the heat insulating partition 5 below the evaporator 10.

FIG. 2 is an enlarged sectional view (A) of an essential part and an enlarged perspective view (B) of an essential part showing a first embodiment of the electric refrigerator according to the present invention, wherein the blower fan of the cool air distribution duct 13 is shown.
On the left and right side walls corresponding to the position of 11, at the vertical position on the horizontal plane passing through the axis of the blower fan 11 at the width of the diameter of the blower fan 11, mountain-shaped protrusions 13 d that project horizontally inward respectively Is provided.

By providing the convex portions 13d in the shape of a mountain on the left and right side walls of the cool air distribution duct 13, the cool air sent by the blower fan 11 hits the formed convex portions 13d and does not reflect irregularly. Is reduced, the cool air flows smoothly, and the air blowing efficiency is increased, and the vertical position of the convex portion 13d is set on a horizontal plane passing through the axis of the blower fan 11, so that the cool air amount is almost uniformly distributed to each cool air delivery path. It becomes an electric refrigerator that can pour water.

FIG. 3 is an enlarged sectional view of a main part of a second embodiment of the electric refrigerator according to the present invention, wherein the cool air distribution duct is provided.
13 convex portions on the left and right side walls corresponding to the position of the blower fan 11
13d is formed in a semicircular shape (A), an arc shape (B), a triangular shape (C), or the like.

It is possible to enhance the air blowing efficiency by selecting and using the type of the shape of the protrusion 13d formed on the left and right side walls of the cool air distribution duct 13 depending on which cool air delivery path is to be emphasized. It becomes possible.

FIG. 4 is an enlarged sectional view showing a main part of an electric refrigerator according to a third embodiment of the present invention. In this embodiment, a predetermined distance is shifted from a horizontal plane passing through the axis of (a), (a) above the horizontal plane, (b) below the horizontal plane, and staggered left and right (c and d).

The vertical position of the projections 13d formed on the left and right side walls of the cool air distribution duct 13 is determined according to the required air volume of each room.
By selecting a predetermined distance depending on which cool air delivery path the flow of the cool air flow is prioritized, it is possible to increase the blowing efficiency.

Although the cool air distribution duct 13 is provided behind the switching room 7 and the vegetable room 8 in the above embodiment, the cool air distribution duct 13 may be provided behind the freezing room 9. (Not shown)

[0023]

As described above, according to the present invention, it is possible to prevent the cold air hitting the left and right side walls inside the cold air distribution duct from being irregularly reflected, and to make the flow of the cold air distribution duct smooth by reducing the blowing resistance. An electric refrigerator with higher efficiency and energy saving.

[Brief description of the drawings]

FIG. 1 is a side sectional view showing a schematic configuration of an electric refrigerator of the present invention and a conventional example.

FIG. 2 is an enlarged sectional view of a main part (A) showing a first embodiment of the electric refrigerator according to the present invention, and an enlarged perspective view (B) of the main part.

FIGS. 3A and 3B are enlarged cross-sectional views of a main part of a second embodiment of the electric refrigerator according to the present invention, which have different convex shapes.
(C).

FIG. 4 is an enlarged sectional view (A) of a main part of a third embodiment of the electric refrigerator according to the present invention, in which the vertical positions of the projections are different;
(B), (C) and (D).

5A and 5B are an enlarged sectional view of a main part of an electric refrigerator showing a conventional example and an enlarged perspective view of a main part, respectively.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Insulated box 2 Outer box 3 Inner box 4 Insulation material 5 Insulated partition 6 Refrigerator room 7 Switching room 8 Vegetable room 9 Freezer room 10 Evaporator (cooler) 11 Ventilation fan 12 Evaporator cover 12a Opening 13 Cold air sending duct 13a Cold air delivery path for refrigerator compartment 13b Cold air delivery path for switching room 13c Cold air delivery path for freezer compartment 13d Convex section 14 Return cold air path

Claims (7)

[Claims] An interior of a heat insulating box formed by filling a heat insulating material between an outer box and an inner box is partitioned into a refrigerator room, a plurality of storage rooms, a freezer room, and the like by a heat insulating partition. A cool air distribution duct is provided behind the evaporator, an evaporator is provided at the back of the cool air distribution duct, an evaporator cover is erected between the upper and lower front of the evaporator, and an opening formed at the top of the evaporator cover Opposing a blower fan, and in front of the evaporator cover, providing a cool air delivery path for sending cool air generated by the evaporator up and down to the refrigerator compartment, the storage compartment, and the freezer compartment through the heat-insulating partition member. In an electric refrigerator provided with a return cold air path for guiding return cool air from the freezer through the heat insulating partition below the evaporator, the cool air distribution duct includes left and right side walls corresponding to the position of the blower fan. Protrusions that project horizontally inward are provided An electric refrigerator, characterized in that: 2. The electric refrigerator according to claim 1, wherein the positions of the left and right convex portions are changed as required for cool air. 3. The electric refrigerator according to claim 1, wherein a material of the projection is a synthetic resin material. 4. The electric refrigerator according to claim 1, wherein a vertical cross-sectional shape of the projection is a mountain shape. 5. The electric refrigerator according to claim 1, wherein a vertical position of the projection is shifted by a predetermined distance from a horizontal plane passing through an axis of the blower fan. 6. The electric refrigerator according to claim 1, wherein a base width of the projection is equal to a diameter of the blower fan. 7. The electric refrigerator according to claim 1, wherein the convex portion is formed integrally with the cool air distribution duct.