JPH10141833A - Electric refrigerator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent heat exchange efficiency of an evaporator from being lowered and further prevent frost from being clogged on one side of a lower part of the evaporator by guiding return cold air returned to the one side of the lower part of the evaporator after circulation in a chamber to the lower part of the evaporator substantially equally. SOLUTION: A shade 6' of a defrosting heater 6 provided on a lower part of an evaporator 5 is connected with an outlet 7a of a circulation passage 7 for circulating return cold air (b) from a vegetable chamber and a refrigeration chamber at its one side. Further, there is provided a plurality of through holes 6a' for substantially uniformly guiding the return cold air discharged from the outlet of the circulation passage toward the shade to the lower part 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 return cold air circulating in a refrigerator and returning to one side of a lower portion of an evaporator to an even lower portion of the evaporator. Related to the structure.

[0002]

2. Description of the Related Art In a conventional electric refrigerator, for example, as shown in FIGS. 3 and 4, the inside of a main body 1 is vertically divided by a partition wall 2, a refrigerator compartment 3 is provided in an upper stage, and a vegetable compartment 3 'is provided in a middle stage. , A freezing room 4 is provided in each lower stage, and an evaporator 5 is provided on the back of the freezing room 4,
A heater 6 for defrosting having an umbrella body 6 ′ and a drain gutter 8 are provided below the evaporator 5, and a blower fan 9 is provided above the evaporator 5, and generated by the evaporator 5 by the blower fan 9. Chilled room 4, the refrigerator room 3, and the vegetable room
3 ', a return path for circulating the return cool air b' from the freezer compartment 4 to the lower part of the evaporator 5 is formed. 5, a circulation path 7 for circulating return cold air b from the refrigerator compartment 3 and the vegetable compartment 3 'is provided.

[0003] However, the return cold air b from the refrigerator compartment 3 and the vegetable compartment 3 'is supplied to the evaporator 5 shown in FIG.
Is concentrated on the substantially fan-shaped part c of
At the same time, the heat exchange efficiency of the evaporator 5 is reduced, and at the same time, there is a problem that a so-called frost jam phenomenon occurs in the substantially fan-shaped portion c.

[0004]

SUMMARY OF THE INVENTION In the present invention, in view of the above-mentioned problems, the returning cool air circulating in the refrigerator and returning to the lower side of the evaporator can be almost uniformly guided to the lower part of the evaporator. It is an object to provide an electric refrigerator as described above.

[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 compartment is provided in an upper compartment, a vegetable compartment is provided in a middle compartment, and a freezing compartment is provided in a lower compartment. Provided, an evaporator is provided on the back of the freezing room, a heater for defrosting having an umbrella body and a drain gutter are provided below the evaporator, a blower fan is provided above the evaporator, and the blower fan A cold air path for sending cold air generated by an evaporator to the freezing compartment, the refrigerator compartment and the vegetable compartment is provided, and a return cold air passage for circulating return cold air from the freezing compartment to a lower portion of the evaporator is formed. In one side of the evaporator, in an electric refrigerator provided with a circulation path for circulating return cold air from the refrigerator compartment and the vegetable compartment toward a lower part of the evaporator, one side of the umbrella body is connected to the circulation path. While connecting to the exit of the The return cold air more discharged, has become by forming a plurality of through holes for guiding substantially uniformly configured at the bottom of the evaporator.

Further, the rear end of the umbrella is connected to the inner wall of the freezer facing the evaporator.

[0007] Further, the through hole is provided in a longitudinal direction of the umbrella body.

Further, the through hole provided on the other side of the umbrella body has a large diameter.

[0009] Further, a large number of through-holes provided on the other side of the umbrella are formed at short intervals.

[0010] Further, the other side of the umbrella body is inclined so as to be lower toward the other side of the evaporator.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS With the above construction, an electric refrigerator which circulates through the inside of the refrigerator and returns cold air returning to the lower part of the evaporator toward the lower part of the evaporator can be almost uniformly guided to the lower part of the evaporator. Become.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment according to the present invention will be described below in detail with reference to the drawings. In FIG. 1 and FIGS. 2 (A) to 2 (C), 1 is an electric refrigerator main body, 2 is a partition wall for vertically dividing the inside of the main body 1, and 3 is a main body 1 by the partition wall 2.
Refrigerated compartment, divided into a middle compartment, 4 'a freezer compartment, divided into a lower compartment, 5 an evaporator provided on the back of the freezer compartment, and 5' an evaporator. Is composed of a number of fins 5a arranged in parallel at equal intervals, and a refrigerant pipe 5b orthogonal to the fins 5a.

A heater 6 for defrosting having an umbrella body 6 'and a drain gutter 8 connected to a circulation path 7 provided on one side of the evaporator 5 are provided below the evaporator 5. The evaporator 5
A blower fan 9 for sending cool air a generated by the evaporator 5 to the freezer compartment 4, the refrigerator compartment 3, and the vegetable compartment 3 ′ is provided above the evaporator 5. A cold air a is sent out toward the room 4, the refrigerator room 3 and the vegetable room 3 ', and a return cold air path for circulating the return cold air b' from the freezing room 4 to the lower part of the evaporator 5 is formed.
Return cold air b from the refrigerator compartment 3 and the vegetable compartment 3 '
The evaporator 5 is circulated closer to one side of the lower part of the evaporator 5 by the circulation path 7 having an outlet 7a connected to the drain gutter 8.

While one side of the umbrella body 6 ′ is connected to the outlet of the circulation path 7, the return cool air b discharged from the outlet of the circulation path 7 toward the umbrella body 6 ′ is supplied to the evaporator 5. A plurality of through-holes 6'a are formed in the lower part so as to guide them almost evenly, whereby the returning cold air b from the refrigerator compartment 3 and the vegetable compartment 3 'is discharged to the evaporator 5 It is possible to prevent the heat exchange efficiency of the evaporator 5 from being reduced, and to prevent the so-called frost jam phenomenon from occurring at the same time. .

Further, since the rear end of the umbrella body 6 'is connected to the inner wall of the freezer compartment 3 facing the evaporator 5, the return cold air b from the refrigerator compartment 3 and the vegetable compartment 3'
Can be more effectively circulated from the through hole 6′a toward the lower part of the evaporator 5.

Further, by providing the through-hole 6'a in the longitudinal direction of the umbrella body 6 ', the return cold air b from the refrigeration room 3 and the vegetable room 3' is transferred to the lower part of the evaporator 5. To be able to circulate more evenly.

Further, since the through hole 6'a provided on the other side of the umbrella body 6 'is formed with a large diameter, the return cold air b from the refrigeration compartment 3 and the vegetable compartment 3' does not easily reach. The structure is such that the return cold air b can be circulated more effectively toward the other side of the lower part of the evaporator 5.

Further, since a large number of the through holes 6'a provided on the other side of the umbrella body 6 'are formed at short intervals, the return cold air b from the refrigerator compartment 3 and the vegetable compartment 3' can reach. The structure is such that the return cool air b can be more effectively circulated toward the other side of the lower part of the evaporator 5 which is difficult to be circulated.

Further, the other side of the umbrella body 6 'is inclined downward toward the other side of the evaporator 5 at an inclination angle A shown in FIG. Further, the return cool air b can be more effectively circulated toward the other side of the lower part of the evaporator 5 where the return cool air b from the vegetable compartment 3 'is difficult to reach. .

With the above configuration, as shown in FIG. 1 and FIGS. 2 (A) to 2 (C), one side of the umbrella body 6 'provided in the heater 6 for defrosting is recycled. While being connected to the outlet 7a of the passage 7, return cold air b discharged from the outlet 7a of the circulation passage 7 toward the umbrella 6 'is provided with a plurality of through holes 6' provided in the longitudinal direction of the umbrella 6 '. a, the return cold air b is prevented from being concentrated near one side of the lower part of the evaporator 5 by leading the heat to the lower part of the evaporator 5 almost uniformly. The electric refrigerator can prevent the efficiency from being lowered and prevent the so-called frost jamming phenomenon from occurring.

[0021]

As described above, the return cool air circulating in the refrigerator and returning to the lower side of the evaporator can be almost uniformly guided to the lower part of the evaporator, thereby improving the heat exchange efficiency. The electric refrigerator can prevent the phenomenon of reduction and so-called frost jamming from occurring.

[Brief description of the drawings]

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

FIG. 2 is an explanatory view of a main part of the electric refrigerator according to the present invention,
(A) is a front view showing a state where a defrosting heater having an umbrella body is provided at a lower part of the evaporator, (B) is a side view,
(C) is a perspective view of the umbrella body.

FIG. 3 is a sectional view of an electric refrigerator according to a conventional example.

FIG. 4 is an explanatory view of a main part 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 5a Fin 5b Heat transfer tube 6 Heater 6' Head body 6'a Through-hole 7 Circulation line 8 Drain gutter 9 Blow fan A Slant angle a Generation B, b 'return cold air

Claims (6)

[Claims] 1. The interior of the refrigerator is divided into upper and lower partitions, and a refrigerator compartment is provided in an upper stage, a vegetable compartment is provided in a middle stage, and a freezing compartment is provided in a lower stage, respectively.
An evaporator is provided on the back surface of the freezing chamber, a defrosting heater having an umbrella body and a drain gutter are provided below the evaporator, a blower fan is provided above the evaporator, and the evaporator is provided by the blower fan. Providing a cool air passage for sending out the cool air generated in the freezing room, the refrigerator room and the vegetable room, forming a return cool air passage for circulating cool air returning from the freezer room to a lower part of the evaporator, and forming the cool air passage; An electric refrigerator provided with a circulation path on one side of the vessel toward the lower part of the evaporator to circulate return cold air from the refrigerator compartment and the vegetable compartment; A plurality of through-holes for guiding return cold air discharged from an outlet of the circulation path toward the umbrella body to the lower part of the evaporator substantially uniformly. refrigerator. 2. The electric refrigerator according to claim 1, wherein a rear end of the umbrella body is connected to an inner wall of the freezer facing the evaporator. 3. The electric refrigerator according to claim 1, wherein the through-hole is provided in a longitudinal direction of the umbrella body. 4. The electric refrigerator according to claim 1, wherein the through hole provided on the other side of the umbrella body has a large diameter. 5. The electric refrigerator according to claim 1, wherein a large number of through holes provided on the other side of the umbrella are formed at short intervals. 6. The electric refrigerator according to claim 1, wherein the other side of the umbrella body is inclined downward toward the other side of the evaporator.