JP2001147069A - Electric refrigerator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electric refrigerator improving defrosting efficiency and heat exchange efficiency by uniformly guiding return cold air that is circulated in a freezer, a refrigerating chambers, and a vegetable chambers and returns to an evaporator at the entire lower region of the evaporator. SOLUTION: A drain gutter 6 divides an opening 7a into upper and lower portions, at the same time, is provided with a return cold air port 6b facing the lower portion of the other side of an evaporator 5 and is provided, so that it divides the area between a defrosting heater H and its lower partition wall 2 into upper and lower portions, guides return cold air (b) in a duct 7 from the opening 7a' which is divided into an upper level to the lower portion of one side of the evaporator, and at the same time guides the return cold air (b) from the return cold air port that continues to the opening 7a" being divided into a lower level to the lower portion of the other side of the evaporator.

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 refrigerator, a refrigerator, and a vegetable compartment which can return cold air returning to an evaporator to both lower portions of the evaporator. And a structure capable of improving the defrosting efficiency and the heat exchange efficiency.

[0002]

2. Description of the Related Art In a conventional electric refrigerator, for example, as shown in FIGS. 1 and 3, the inside of a main body 1 is vertically divided by a partition wall 2, and a refrigerator compartment 3, a vegetable compartment 3 'and a freezing compartment 4 are provided. The evaporator chamber is partitioned by a partition plate 8 on the back of the freezing chamber 4 and the evaporator 5 is provided.
And a drain gutter 6 provided with a defrosting heater H and a drain port 6a below the evaporator 5, and a blower fan 9 provided above, and cool air generated in the evaporator 5 by the blower fan 9. As shown by an arrow a, a cool air delivery path for delivering to the freezing compartment 4, the refrigeration compartment 3 and the vegetable compartment 3 'is provided, and one side of the evaporator 5 has an opening facing the lower side of the evaporator 5. 7a, a duct 7 is provided to guide the return cold air b and b 'from the refrigerator compartment 3 and the vegetable compartment 3'.

However, since the return cold air b from the refrigerating compartment 3 and the vegetable compartment 3 'tends to concentrate on the portion A shown in FIG. 3, a so-called frost jam phenomenon occurs at the location. However, there is a problem that the defrosting efficiency and the heat exchange efficiency of the evaporator 5 are reduced.

[0004]

SUMMARY OF THE INVENTION In the present invention, in view of the above-mentioned problems, the return of cool air returning to the evaporator by circulating through the freezing room, the refrigerator room and the vegetable room can be guided to both lower sides of the evaporator. It is an object of the present invention to provide an electric refrigerator capable of improving defrosting efficiency and heat exchange efficiency.

[0005]

According to the present invention, in order to solve the above-mentioned problems, the inside of a refrigerator is vertically divided by a partition wall, and a refrigerator room, a vegetable room, and a freezing room are provided. The evaporator chamber is partitioned by the partition plate to provide an evaporator, a heater for defrosting and a drain gutter are provided below the evaporator, a blower fan is provided above, and cool air generated by the evaporator is provided by the blower fan. The freezer compartment, a cold air delivery path for delivering to the refrigerator compartment and the vegetable compartment is provided, and on one side of the evaporator, an opening facing the lower side of the evaporator is provided, and In an electric refrigerator provided with a duct for guiding return cold air, the drain gutter divides the opening into upper and lower portions, and includes a return cool air port facing the lower side of the other side of the evaporator; And the partition wall below it. The return cold air in the duct is guided to the lower side of one side of the evaporator from the upper section of the evaporator, and the return cool air in the lower section is connected to the lower section of the evaporator. It is configured to be guided to the lower side.

[0006] Further, the upper sectioned opening has a smaller diameter than the lower sectioned opening.

[0007] The return cool air port is configured to have a slightly larger diameter than the upper-partitioned opening.

Further, the return cool air port is provided at a position slightly apart from the lower part on the other side of the evaporator in the horizontal direction.

Further, a water-blocking piece for blocking water so that condensed water dropped from the evaporator does not enter the periphery of the return cool air port is formed continuously.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The embodiments of the present invention will be described below as examples based on the attached drawings. FIG. 1 is a cross-sectional view of a conventional example and an electric refrigerator according to the present invention, and FIG. 2 is an enlarged view of a rear part of a freezer compartment of the electric refrigerator according to the present invention.

In the drawing, 1 is a main body of the electric refrigerator according to the present invention, 2 is a partition wall dividing the inside of the main body 1 up and down,
3 is a refrigeration compartment partitioned in the upper part of the main body 1 by the partition wall 2, 3 'is a vegetable compartment 4 partitioned in the middle tier, a freezing compartment partitioned in the lower tier, and 5 is a rear side of the freezing compartment 4 This is an evaporator provided by partitioning a partition chamber by a partition plate 8.

Below the evaporator 5, a heater H for defrosting is provided.
And a drain gutter 6 provided with a drain port 6a, and a blower fan 9 is provided above the cooler, and the cool air generated in the evaporator 5 by the blower fan 9 is supplied to the freezing room by a cool air delivery path shown by an arrow a. 4. The refrigerating compartment 3 and the vegetable compartment 3 'which are sent out to the refrigerating compartment 3 and the vegetable compartment 3' and have an opening 7a facing the lower side of the evaporator 5 on one side of the evaporator 5
And a duct 7 for guiding the return cool air b and b ′ from the air.

Next, the return cold air b circulating through the freezing room 4, the refrigerator room 3 and the vegetable room 3 'and returning to the evaporator 5 is
A structure that can be guided to both lower sides of the evaporator 5 to improve defrosting efficiency and heat exchange efficiency will be described in detail.

The drain gutter 6 divides the opening 7a into upper and lower portions, and has a return cool air port 6b facing the lower side of the other side of the evaporator 5, so that the defrosting heater H and the lower portion thereof are provided. It is provided so as to partition the partition wall 2 upward and downward, and the return cold air b in the duct 7 is guided to the lower part of one side of the evaporator 5 from the opening 7a 'partitioned in the upper part, while it is lowered in the lower part. The configuration is such that the return cool air port 6b connected to the partitioned opening 7a '' is guided to the lower part on the other side of the evaporator 5, whereby the return cool air b is transferred to both lower sides of the evaporator 5. , The frost can be formed almost uniformly on both sides of the lower portion of the evaporator 5, the defrosting efficiency can be improved, and the heat exchange efficiency can be improved. The structure is as described above.

Further, the opening 7a 'partitioned at a higher position is
It is configured to have a small diameter with respect to the lower opening 7a '', so that the return cool air b flows uniformly from the opening 7a 'and the opening 7a'', and the evaporator 5 can be uniformly guided toward both lower sides.

Further, the return cool air port 6b is configured to have a slightly larger diameter than the opening 7a 'which is partitioned at a higher position. The return cold air b having a high flow velocity and the return cool air b having a low flow velocity guided from the return cold air port 6b to the lower portion on the other side of the evaporator 5 are directed toward both lower sides of the evaporator 5, respectively. The structure is such that it can be evenly guided.

The return cool air port 6b is connected to the evaporator 5
The condensed water dripping from the evaporator 5 is provided at a position slightly apart in the horizontal direction with respect to the lower part on the other side.
The structure is such that it does not enter through the return cold air port 6b.

Further, a water-blocking piece 6c for continuously blocking the condensed water dropped from the evaporator 5 from entering the periphery of the return cool air port 6b to prevent the condensed water from entering the evaporator 5 is formed. The structure is such that water can be more accurately prevented from entering through the return cool air port 6b.

With the above configuration, as shown in FIGS. 1 and 2, the drain gutter 6 divides the opening 7a into upper and lower portions and a return cool air port facing the lower side on the other side of the evaporator 5.
6b, which is provided so as to vertically divide the space between the defrosting heater H and the partition wall 2 therebelow, and returns the returning cold air b in the duct 7 to the opening 7a, '
To the lower part of the evaporator 5 while being guided to the lower part on the other side of the evaporator 5 from the return cool air port 6b connected to the lower opening 7a ''. Can be guided to both lower sides of the evaporator 5, so that frost can be formed almost uniformly on both lower sides of the evaporator 5, and the defrosting efficiency can be increased. It becomes an electric refrigerator that can improve the exchange efficiency.

[0020]

As described above, according to the present invention, a freezing room,
The electric refrigerator is configured to be able to improve the defrosting efficiency and the heat exchange efficiency by circulating the cool air returning to the evaporator through the refrigerating room and the vegetable room to the lower side of the evaporator.

[Brief description of the drawings]

FIG. 1 is a sectional view of a conventional example and an electric refrigerator according to the present invention.

FIG. 2 is an enlarged view of the rear part of the freezer compartment of the electric refrigerator according to the present invention.

FIG. 3 is an enlarged view of a rear portion of a freezer compartment of an electric refrigerator according to a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Electric refrigerator main body 2 Partition wall 3 Refrigerator room 3 'Vegetable room 4 Freezer room 5 Evaporator 6 Drain gutter 6a Drain port 6b Return cool air port 6c Waterproofing piece 7 Duct 7a Opening 7a' Opened upper opening 7a '' Lower opening 8 Partition plate 9 Blower fan H Defrosting heater a Cold air delivery path b, b 'Return cold air

Claims (5)

[Claims] 1. An interior of a refrigerator is vertically divided by a partition wall, a refrigerator room, a vegetable room, and a freezing room are provided. An evaporator is provided by partitioning an evaporator room by a partition plate on the back of the freezing room. A defrost heater and a drain gutter are provided below the evaporator, and a blower fan is provided above the cooler, and cool air generated by the evaporator by the blower fan is sent to the freezing room, the refrigerator room, and the vegetable room. An electric refrigerator, comprising: a delivery path; and, on one side of the evaporator, an opening facing the lower side of the evaporator and a duct for guiding return cold air from the refrigerator compartment and the vegetable compartment. A gutter divides the opening up and down and includes a return cool air port facing the lower side of the other side of the evaporator to vertically divide the space between the heater for defrosting and the partition wall therebelow. Is provided so as to return cold air in the duct,
The upper section is guided to the lower part on one side of the evaporator from the opening, and the return cold air port connected to the lower section is guided to the lower part on the other side of the evaporator. Electric refrigerator. 2. The electric refrigerator according to claim 1, wherein the upper section of the opening has a smaller diameter than the lower section of the opening. 3. The cooling air outlet of claim 1, wherein the diameter of the return cold air opening is slightly larger than that of the opening partitioned at an upper level.
Or the electric refrigerator according to claim 2. 4. The electric refrigerator according to claim 1, wherein the return cool air port is provided at a position slightly apart from a lower portion on the other side of the evaporator in a horizontal direction. 5. A water-blocking piece that continuously blocks water so that condensed water dropped from the evaporator does not enter the peripheral edge of the return cool air port. Item 5. An electric refrigerator according to Item 4.