JP2002228328A - Electric refrigerator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an energy saving electric refrigerator in which chill supplied from a chill duct into the refrigerator compartment spreads efficiently and uniformly over the entire region in the compartment and reduction in the volume of the compartment is minimized. SOLUTION: The electric refrigerator comprises chill ducts 13 and 14 having a plurality of air outlets 16a for passing chill generated from an evaporator 10 and delivered by means of a fan 11 through a thermally insulated partitioner 5 and delivering the chill to a refrigeration compartment 7 and a freezing compartment 9, respectively, and a return chill passage 15 provided under the evaporator 10 in order to pass the return chill from the freezing compartment 9 through the thermally insulated partitioner 5. The chill ducts 13 for the refrigeration compartment 7 extend across the left and right corners in the rear of the refrigeration compartment 7 and have a triangular cross-section.

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 cold air through a cold air duct for a refrigerator.

[0002]

2. Description of the Related Art A conventional electric refrigerator of this type is, for example, as shown in FIG. In FIG. 4 (A), the inside of the heat insulating box 1 composed of the outer box 2, the inner box 3 and the heat insulating material 4 is partitioned into a refrigerator compartment 7, a vegetable compartment 8 and a freezing compartment 9 by a plurality of heat insulating partitions 5. And the vegetable room 8 or the freezing room 9
An evaporator chamber 12 is provided behind the evaporator chamber, and an evaporator (cooler) 10 for generating cool air is installed at the back of the evaporator chamber 12, and a blower fan 11 is provided above the evaporator 10 to provide the evaporator. The cool air generated in the vessel 10 is passed through the heat insulating partition 5, and from the ceiling 6 of the inner box 3 to the evaporator chamber 12,
And a cool air duct 14 to be sent to the freezing compartment 9, respectively.
, A return cold air path 15 for guiding the return cool air from the freezing compartment 9 through the heat insulating partition body 5 was provided.

FIG. 4B is a front view thereof, and FIG.
(C) is a cross-sectional view (C) of a main part corresponding to AA in the front view (B). The cold air duct 13 to be sent to the refrigerator compartment 7 is disposed on the rear surface of the refrigerator compartment 7. In addition, a duct cover 16 having a plurality of outlets 16a is provided on the front surface of the cool air duct 13, and cool air is blown into the refrigerator compartment 7 from each outlet 16a of the duct cover 16.

However, in the above configuration, since the cool air blown from the cool air duct 13 into the refrigerator compartment 7 flows forward in the refrigerator, the cool air flowing to the left and right corners on the rear surface of the refrigerator compartment 7 is poor. However, there has been a problem that it may not flow efficiently. In addition, since the cold air duct 13 is disposed on the back of the refrigerator compartment 7, the depth inside the refrigerator becomes shallow, which causes a reduction in the volume inside the refrigerator.

[0005]

DISCLOSURE OF THE INVENTION In the present invention, in view of the above-mentioned problems, the cool air blown out from the cool air duct into the refrigerator compartment is efficiently and evenly distributed throughout the refrigerator, and the volume of the refrigerator is reduced. It is an object of the present invention to provide an energy-saving electric refrigerator that minimizes a decrease in power consumption.

[0006]

According to the present invention, in order to solve the above-mentioned problems, the inside of a heat insulating box, which is filled with a heat insulating material between an outer box and an inner box, is formed by a heat insulating partition, and a plurality of refrigeration compartments are provided. A storage room, partitioned into a freezing room, etc., an evaporator room is provided behind the storage room or the freezing room, and an evaporator is provided at the back of the evaporator room,
A blower fan is provided above the evaporator, and cool air generated by the evaporator passes through the heat-insulating partition and is sent from the ceiling of the inner box to the evaporator room to the refrigerator room, storage room, and freezing room. An electric refrigerator provided with a cool air duct having a plurality of air outlets, and a return cold air passage for guiding return cool air from the freezer through the heat insulating partition below the evaporator; A cool air duct is arranged between upper and lower left and right corners at the back of the refrigerator compartment.

[0007] The cross section of the cold air duct has a triangular configuration.

A recess is provided between the inner box at the left and right corners at the back of the refrigerator compartment, and the cool air duct is buried in the recess, and only the outlet side of the cool air duct is disposed on the wall surface of the inner box. The configuration is as follows.

The cold air duct extends from the upper part of the left and right corners at the back of the refrigerator compartment to the front of both the left and right corners of the ceiling part, and an outlet is formed at the front of each of the extending parts. .

The cold air duct extends from the upper part of the left and right corners at the back of the refrigerator compartment to the front of both the left and right corners of the ceiling part, and the front of the ceiling part of each extension part, and further to the center from both the left and right corners. It is configured to extend toward and merge with each other, and to form an air outlet on the front surface of the merging portion.

The cold air duct extends from the upper part of the left and right corners at the back of the refrigerator compartment to the front of both the left and right corners of the ceiling part, at the back of the ceiling part of each extension part, and further to the center from both the left and right corners. It is configured to extend and merge toward the front of the ceiling with the full width of the merging portion, and to form an outlet at the front surface of the extending portion.

[0012]

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 (A), a front view (B), and an AA of a front view (B) showing a schematic configuration of a first embodiment of an electric refrigerator according to the present invention.
2 (C) and 2 (D). FIGS. 2 and 3 are side sectional views (A) and front views (B) respectively showing a schematic configuration of an embodiment of the electric refrigerator according to the present invention. ) And (C) and (D) as viewed from arrow C in the front view (B).
Here, the same reference numerals are used for the same parts as in the conventional example.

In FIG. 1, reference numeral 1 denotes an insulating box made up of 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 refrigerator compartment 7 is divided into a refrigerator compartment 7, a vegetable compartment 8 and a freezer compartment 9 in order from the top, and an evaporator compartment 12 is provided behind the vegetable compartment 8 or the freezer compartment 9; An evaporator (cooler) 10 for generating cool air and a blower fan 11 for forcibly circulating the cool air generated above the evaporator 10 are provided.

The blower fan 1 generated by the evaporator 10
The cool air sent out by 1 passes through the heat-insulating partition body 5, is sent from the ceiling 6 of the inner box 3 to the evaporator room 12, to the cool air duct 13 sent to the refrigerator room 7, and to the freezing room 9. A cool air duct 14 is provided, and a return cool air path 15 for guiding return cool air from the freezing room 9 through the heat insulating partition 5 below the evaporator 10.

As shown in FIG. 1 (C), the cold air duct 13 for the refrigerator compartment 7 is disposed between the left and right corners of the refrigerator compartment 7 between the upper and lower corners, and a duct cover is provided on the front surface of the cool air duct 13. 16 is provided, a plurality of outlets 16a are formed in the duct cover 16, and cool air is blown out from the outlets 16a. Become.

Further, the cross-sectional shape of the cold air duct 13 provided at both left and right corners inside the refrigerator compartment 7 is triangular,
Since the cooling air duct 13 is arranged so as to be fitted to the corner, the protrusion of the cold air duct 13 to the inside of the refrigerator can be reduced, and the decrease in the volume of the refrigerator can be suppressed.

Further, FIG. 1 (D) shows a concave portion 3a between the upper and lower sides of the inner box 3 in both left and right corners in the back of the refrigerator compartment 7, and the cool air duct 13 is embedded in the concave portion 3a. Only the side of the outlet 16a is disposed on the wall surface of the inner box 3, so that the protrusion of the cold air duct 13 to the inside of the refrigerator can be further reduced, and a decrease in the volume of the refrigerator can be suppressed.

FIG. 2 is a side sectional view (A) showing a schematic configuration of a second embodiment of the electric refrigerator according to the present invention, and FIG.
And FIG. 11 (C) is a front view (C) of the cold air duct 13 extending from the upper left and right corners of the refrigerator compartment 7 to the front of the right and left corners of the ceiling 6. A duct cover 16 is provided on the front surface of the duct 13, and a plurality of outlets 16 a at the left and right corners behind the refrigerator compartment 7 of the duct cover 16 and outlets 16 b are formed on the front surface of each extension 16 c. , The outlet 16a,
By blowing cool air from 16b, the temperature unevenness in the refrigerator is further improved.

FIGS. 3A, 3B and 3C show a third embodiment of the electric refrigerator according to the present invention.
The cold air duct 13 extending from the upper portion of the left and right corners behind the refrigerator compartment 7 to the front of the left and right corners of the ceiling portion 6 is provided in front of the ceiling portion 6 of each of the extending portions 16c, and further in the center than the left and right corners. Extend toward each other, and merge into the same merging section 16d
The outlet 16b is provided on the front surface of the air outlet, and cool air is blown out from the outlet 16b, so that the cooling in the refrigerator can be further uniformed.

FIGS. 3A, 3B and 3D show a fourth embodiment of the electric refrigerator according to the present invention.
The cold air duct 13 extending from the upper left and right corners behind the refrigerator compartment 7 to the front of the left and right corners of the ceiling 6 extends further toward the center from the left and right corners at the back of the ceiling 6 and merges. It extends to the front of the ceiling portion 6 with the full width of the merging portion 16d, the outlet 16b is provided in front of the extending portion 16e, and the cool air is blown out from the outlet 16b to further cool the inside of the refrigerator. This is to achieve uniformity.

[0021]

As described above, according to the present invention, the cool air blown out from the cool air duct into the refrigerator compartment can be efficiently and evenly distributed over the whole area of the refrigerator and the decrease in the volume of the refrigerator can be minimized. It will also be an energy-saving electric refrigerator.

[Brief description of the drawings]

FIG. 1 is a side sectional view (A), a front view (B), and a front view (B) corresponding to BB in a front view (B) showing a schematic configuration of an electric refrigerator according to a first embodiment of the present invention. FIGS. 7A and 7B are main-portion cross-sectional views (C) and (D) corresponding to AA of FIG.

FIG. 2 is a side sectional view (A), a front view (B), and a front view (B) corresponding to BB in a front view (B) showing a schematic configuration of an electric refrigerator according to a second embodiment of the present invention. It is an arrow C view (C) shown by.

FIG. 3 is a side sectional view (A) corresponding to BB in a front view (B) showing a schematic configuration of an electric refrigerator according to a third embodiment and a fourth embodiment of the present invention, and a front view (B). And (C) and (D) as viewed from the arrow C in the front view (B).

FIG. 4 is a side sectional view (A) corresponding to BB in a front view (B), a front view (B), and a main part corresponding to AA in the front view (B) showing a schematic configuration of a conventional electric refrigerator. It is a part cross section (C).

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Insulated box 2 Outer box 3 Inner box 3a Depression 4 Insulation material 5 Insulated partition 6 Ceiling 7 Refrigerator room 8 Vegetable room 9 Freezer room 10 Evaporator (cooler) 11 Ventilation fan 12 Evaporator room 13 Cold air for refrigerator room Duct 14 Cold air duct for freezer compartment 15 Return cold air path 16 Duct cover 16a Outlet 16b Outlet 16c Extension 16d Merge 16e Extension

Claims (6)

[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. An evaporator chamber is provided behind, and an evaporator is provided at the back of the evaporator chamber,
A blower fan is provided above the evaporator, and cool air generated by the evaporator passes through the heat-insulating partition and is sent from the ceiling of the inner box to the evaporator room to the refrigerator room, the storage room, and the freezer room. An electric refrigerator provided with a cool air duct having a plurality of air outlets, and a return cold air path for guiding return cool air from the freezer through the heat insulating partition below the evaporator; An electric refrigerator, wherein a cold air duct is disposed between upper and lower left and right corners at the back of the refrigerator compartment. 2. The electric refrigerator according to claim 1, wherein the cross-sectional shape of the cold air duct is triangular. 3. A recess is provided between the upper and lower inner boxes of the left and right corners at the back of the refrigerator compartment, and the cool air duct is embedded in the recess, and only the outlet side of the cool air duct is provided on the wall surface of the inner box. The electric refrigerator according to claim 1, wherein the electric refrigerator is provided. 4. The cold air duct extends from the upper left and right corners at the back of the refrigerator compartment to the front of the left and right corners at the ceiling, and an outlet is formed at the front of each of the extended portions. The electric refrigerator according to any one of claims 1 to 3, wherein 5. The cold air duct extends from the upper left and right corners at the back of the refrigerator compartment to the front of both left and right corners of the ceiling, and further from the front of the ceiling at each extension, and further from the left and right corners. The electric refrigerator according to any one of claims 1 to 3, wherein the electric refrigerator extends and merges toward the center, and an outlet is formed at a front surface of the merging portion. 6. The cold air duct extends from the upper left and right corners at the back of the refrigerator compartment to the front of the left and right corners at the ceiling, and further from the left and right corners at the back of the ceiling at each extension. 4. The air conditioner according to claim 1, further comprising: extending toward the center, merging, extending to the front of the ceiling while maintaining the full width of the merging portion, and forming an outlet on the front surface of the extending portion. An electric refrigerator as described.