JP2002062017A - Refrigerator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To suppress uneven chill supply to a refrigeration compartment by uniformizing chill, being sucked from a cooler to a cross-flow fan for forced circulation of chill, in the lateral direction. SOLUTION: Upper end part 10a of the fins 10 of a cooler 13 is extended upward so that chill produced from the cooler 13 disposed in a chill production compartment 15 in the rear of a refrigeration compartment spreads evenly over the entire region of a cross-flow fan 20 disposed on the upper front side of the cooler 13. Furthermore, interval at the forward end part 10a of the fins 10 is enlarged substantially uniformly such that the lateral width of the cross- flow fan 20 is substantially equal to the dimension between the left and right ends at the forward end part 10a of the fins 10.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a refrigerator, and more particularly to a refrigerator having a cross-flow fan for forced air circulation.

[0002]

2. Description of the Related Art In a refrigerator, for example, as shown in FIG. 1, an inside of a heat insulating box 1 in which a heat insulating material 4 is filled between an outer box 2 and an inner box 3 is formed by heat insulating partitions 5 and 6, and an upper refrigerator compartment. 7 and a vegetable compartment 8 at the center and a freezing compartment 9 at a lower portion. A plurality of fins 10 as shown in FIG. 11 and a cooler 13 comprising a plurality of connecting tubes 12 and the like connecting the same heat transfer tubes 11 are provided,
A cool air generation chamber 15 having a cooler 13 is formed by providing a front cover 14 having an opening at the top and bottom in front of the cooler 13 and a cool air return passage 16 for returning cool air in the vegetable room 7 to the cool air generation chamber 15 is formed. On the other hand, a ceiling cover 19 having a cool air outlet 17 at least in the front left and right directions on the ceiling of the inner box 3 so as to form a cool air passage 18 communicating with the cool air generation chamber 15 with the ceiling.
And a cross-flow fan 20 for forced circulation of cold air is provided on the inlet side of the cool air passage 18 formed by the attachment of the ceiling cover 19 (in the front left and right direction of the cooler 13). Some are designed to supply cold air uniformly.

[0003]

SUMMARY OF THE INVENTION However, a cooler
The positional relationship between the cross flow fan 13 and the cross flow fan 20 is as shown in FIG. 6 when viewed from the front. The dimension between the left and right of the fin 10 of the cooler 13 is smaller than the length of the cross flow fan 20, and Although it is unavoidable in terms of structure, since it is arranged on the right side, it is not possible to spread the cool air generated by the cooler 13 all over the cross flow fan 20, and one of the cross flow fans 20 Cooler
The uncooled air passing through the side of 13 is sucked, and as a result, the blow-out of cool air into the refrigerator (refrigeration room 7) becomes unbalanced as shown in FIG. Even if it is uniform, a temperature difference occurs). Therefore, an object of the present invention is to provide a refrigerator capable of solving the above-mentioned problems.

[0004]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and has a plurality of heat insulating partitions formed by filling a heat insulating material between an outer box and an inner box. The body is divided into an upper refrigerator compartment, a central vegetable compartment, and a lower freezer compartment. At the upper rear portion of the refrigerator compartment, a large number of fins are stacked at predetermined intervals in a horizontal direction, and are orthogonal to the fins. A plurality of heat transfer tubes and a cooler including a plurality of connecting tubes connecting the heat transfer tubes are provided, and a front cover having upper and lower openings is provided in front of the cooler to form a cool air generation chamber including the cooler. Forming a cold air return passage for returning cold air in the vegetable compartment to the cold air generation chamber, and having a cool air outlet at least in the front left and right directions on the ceiling of the inner box; Cover to form a cool air passage communicating with A cover provided with a cross flow fan for forced circulation of cool air at a predetermined position of the cool air passage formed by attaching the ceiling cover, wherein the cool air generated by the cooler is spread over the entire area of the cross flow fan. The upper ends of the fins are simultaneously extended upward so as to be evenly distributed.

The upper end of the fin extends to the vicinity of the suction port of the cross flow fan.

The distance between the tips of the fins is substantially evenly enlarged so that the width of the cross flow fan and the dimension between the upper and lower ends of the fins are substantially equal.

[0007] Further, the cross-flow fan is provided on both the inlet side of the cool air passage located in the upper front of the cooler and the cool air outlet formed in front of the ceiling cover.

[0008]

FIG. 1 is a block diagram showing an embodiment of the present invention.
This will be described with reference to FIG. FIG. 1 shows a schematic configuration of a refrigerator, FIG. 2 shows a relationship between a cooler provided at an upper rear portion of a refrigerator, and a cross flow fan, and FIG. 3 shows a state of blowing cold air into the refrigerator. In the figure, reference numeral 1 denotes an insulating box (also referred to as a refrigerator body) including an outer box 2 made of a steel plate, an inner box 3 made of a synthetic resin, a foamed heat insulating material 4 and the like. An upper refrigerator compartment 7, a central vegetable compartment 8, and a lower freezer compartment 9 are formed.

In the upper rear portion of the refrigerator compartment 7, a large number of fins 10 stacked horizontally at equal intervals as shown in FIG. 2 and a plurality of U-shaped heat transfer tubes 11 perpendicular to the fins 10 are provided. And a cooler 13 comprising a plurality of connecting pipes 12 connecting the heat transfer tubes 11 to each other, and a front cover 14 having upper and lower openings provided in front of the cooler 13 to generate cool air including the cooler 13. A cold air return passage 16 for forming the room 15 and returning the cool air in the vegetable room 8 to the cool air generating chamber 15 is formed, and the ceiling of the inner box 3 has a cool air outlet 17 at least in the front left and right directions. A ceiling cover 19 is formed so as to form a cool air passage 18 communicating with the cool air generation chamber 15 therebetween.
A cross-flow fan 20 for forced circulation of cool air is provided on the inlet side of the cool air passage 18 formed by the attachment of the heat exchanger 19 (left and right direction in front of the cooler 13).

In addition, a cooler 21 dedicated to the freezing room 9 and a blower 22 for forced air circulation are arranged behind the freezing room 9 and a front cover 23 having a cool air outlet or the like is provided in front of the cooler 21. ing. Reference numeral 24 denotes a compressor, 25 denotes a door of the refrigerator compartment 7, 26 denotes a door of the vegetable room, and 27 denotes a door of the freezing room 9.

Next, the cooler 13 disposed in the cool air generation chamber 15 will be described. The cool air generated by the cooler 13 is supplied to the cool air passage 18 by the operation of the cross flow fan 20.
After being forwarded through the cold air outlet 17 from the front to the refrigerator compartment 7, it is supplied to the vegetable compartment 8 through a cold air passage (not shown), and the cool air in the vegetable compartment 8 is passed through the cool air return passage 16. Is returned to the cool air generation chamber 15, but in the present invention, the cooler 13
As shown in FIG. 2, the upper ends of the fins 10 of the cooler 13 are simultaneously extended so that the cool air generated by the cross flow fan uniformly spreads over the entire area of the cross flow fan 20 as shown in FIG. The distance between the distal ends of the fins 10 is substantially evenly enlarged so that the dimensions between the upper and lower ends of the fins 10 are substantially equal.
In addition, the upper end of the fin 10 is
It is configured to extend to the vicinity of 20 suction ports.

With the cooler 13 configured as described above,
The extended upper end 10a of the fin 10 is a cross flow fan.
As a function of a guide plate for uniformly supplying cool air to the entire area of the 20, the temperature difference between the left and right blown air of the cross flow fan 20 can be further reduced, and the inside of the refrigerator as shown in FIG. The blow-out of cold air to the (refrigeration room 7) is substantially uniform.

FIG. 4 shows a second embodiment.
The difference from the above is that the cross flow fan 20 is provided at the cool air outlet 17 formed in front of the ceiling cover 19 so that the air blown out from the cross flow fan 20 is directly supplied to the refrigerator compartment 7. It was done.

FIG. 5 shows a third embodiment.
The difference from the first and second embodiments is that the cross flow fan 20 is connected to a cool air passage located in the upper front of the cooler 13.
The cool air generated by the cooler 13 is supplied to the refrigerator compartment 7 more strongly and in a well-balanced manner by providing the cool air generated by the cooler 13 at both the inlet side of the cooling air outlet 18 and the cool air outlet 17 formed in front of the ceiling cover 19. Things.

[0015]

With the refrigerator as described above, the temperature difference between the left and right blow-out air of the cross flow fan becomes smaller, so that the temperature unevenness in the refrigerator compartment is improved and the upper end of the fin of the cooler is improved. , The cooling performance can be improved and the power consumption can be reduced.

[Brief description of the drawings]

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

FIG. 2 is a front view showing the relationship between a cross-flow fan and a cooler provided at an upper rear portion of a refrigerator according to the present invention.

FIG. 3 is a main part perspective view showing a state of blowing cold air into a refrigerator compartment according to the present invention.

FIG. 4 is a sectional side view of a main part showing a second embodiment of the present invention.

FIG. 5 is a side sectional view of a main part showing a third embodiment of the present invention.

FIG. 6 is a front view showing a relationship between a conventional cooler and a cross flow fan.

FIG. 7 is a perspective view of a main part showing a state of blowing cold air into a conventional refrigerator compartment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Insulated box (refrigerator main body) 5 Insulated partition 6 Insulated partition 7 Refrigerator room 8 Vegetable room 9 Freezer room 10 Fin 10a Fin 10a Extended upper end part 11 Heat transfer pipe 12 Connecting pipe 13 Cooler 14 Front cover 15 Cold air generation room 17 Cold air outlet 18 Cold air passage 19 Ceiling cover 20 Cross flow fan 21 Cooler 22 Blower 23 Front cover

Claims (4)

[Claims] 1. 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 an upper refrigerator compartment, a central vegetable compartment, and a lower freezer compartment by a plurality of heat insulating partitions. At the rear upper part of the refrigerating compartment, cooling composed of a number of fins stacked in a horizontal direction at a predetermined interval, a plurality of heat transfer tubes orthogonal to the fins, a plurality of connection tubes connecting the heat transfer tubes, and the like. A cooler generating chamber provided with the cooler by providing a front cover having upper and lower openings in front of the cooler, and a cool air return passage for returning cool air in the vegetable compartment to the cool air generating chamber. The ceiling of the inner box is covered with a ceiling cover having a cool air outlet at least in the front left and right directions so as to form a cool air passage communicating with the cool air generation chamber between the ceiling cover and the ceiling. Of the cold air passage formed by mounting A cross-flow fan for forced circulation of cool air at a predetermined position, wherein the upper ends of the fins extend upward at the same time so that the cool air generated by the cooler is evenly distributed over the entire area of the cross-flow fan. Refrigerator characterized by being made to let. 2. The refrigerator according to claim 1, wherein an upper end portion of the fin extends to a position near a suction port of the cross flow fan. 3. The refrigerator according to claim 1, wherein the distance between the tips of the fins is substantially evenly increased so that the width of the cross flow fan and the dimension between the left and right ends of the upper end of the fin become substantially equal. 4. The refrigerator according to claim 1, wherein the cross flow fan is provided at both an inlet side of the cool air passage located in front of the cooler and a cool air outlet formed in front of the ceiling cover. .