JPH0460370A - Refrigerator - Google Patents

Abstract

PURPOSE:To reduce loss of the cooling air by a structure wherein a cooling device is laid lengthwise on one side at the back of the refrigeration chamber, a fan for circulating cooling air is placed in the corner on the cooling-air discharge side of the cooling device at the back of the refrigeration chamber, and a cooling air supply duct which forms a passageway from the cooling-air discharge side of the cooling device is passed along a corner at the back of the cold chamber under the refrigeration chamber. CONSTITUTION:A cooling device 34 is laid lengthwise in a cooling chamber 3 at the back of a refrigeration chamber 2, and a fan 37 is installed with the front facing askance at a corner in the cooling chamber 3. The cooling air from the cooling device 34 is drawn by the fan 37 and sent to a cooling air discharge duct 40 and thence onto the racks 24 in the refrigeration chamber 2. The cooling air then flows into a cooling-air inlet 43 and into a cooling-air return duct 41 and returns to the cooling device 34 at an intermediate point. The cooling device 34 is laid on one side so that reduction in air-flow resistance can be achieved in forming circulation channels. The part of the cooling air at the cooling air discharge duct 40, which flows downward, flows through a passageway 49 and smoothly into a cooling air supply duct 48, and guided by a damper 54 and through an outlet 50 to a cold chamber.

Description

DETAILED DESCRIPTION OF THE INVENTION (A) Industrial Application Field The present invention relates to a refrigerator in which cold air cooled by a cooler is circulated into a storage chamber by a blower.

(b) Conventional technology A seed refrigerator compared to the conventional technology is disclosed in Japanese Patent Application Laid-open No. 60-331, which precedes the present application.
As shown in Publication No. 3224, a cooler is installed vertically at the back of the freezer compartment, and the cold air cooled by the cooler is sucked upward by a blower installed above the cooler at the center of the back of the freezer compartment. In addition to being blown into the front freezer compartment, the cold air discharged from the blower was supplied to the refrigerator compartment by once leading it to the right side, avoiding the cooler, and dropping it downward from there.

(c) Problems to be Solved by the Invention According to the configuration, the cold air to be supplied to the refrigerator compartment is once blown out forward by the blower, then detoured largely to the right side, and then entered into the duct extending downward. Since it moves downward, there is a large flow resistance, and it has the disadvantage of causing a large loss in cold air circulation.

The present invention aims to solve such problems.

(d) Means for Solving the Problems The present invention provides a method for arranging a cooler vertically and lying down at the back of the freezer compartment, and placing a cold air circulation blower at the back corner of the freezer compartment on the cold air discharge side of the cooler. A refrigerating compartment is defined below the freezing compartment, and a cold air supply duct communicating with the cold air discharge side of the cooler is formed at the rear corner of the freezing compartment.

(E) Function According to the present invention, the cold air discharged from the blower can directly fall downward and be supplied to the refrigerator compartment. Furthermore, since the cold air supply duct is formed at the rear corner of the refrigerator compartment, the thickness of the entire refrigerator can be reduced.

(f) Example Next, the present invention will be explained in detail with reference to the drawings.

FIG. 1 is a perspective view of a refrigerator 1 to which the present invention is applied, FIG. 2 is a longitudinal sectional view of the refrigerator 1, FIG. 3 is a front view of the freezer compartment 2, and FIG.
The figure is a vertical sectional view of the refrigerator 1 of the freezer compartment 2 part, FIG. 5 is a plan sectional view thereof, FIG. 6 is a front view of the cooling compartment 3, and FIG.
8 is a front view of the cold air supply duct 48, FIG. 9 is a sectional view of the same, FIG. 10 is a sectional view taken along the line A-A in FIG. 2, and FIG. 11 is a partition. A rear perspective view of the plate 12 is shown, respectively.

Reference numeral 4 denotes a heat insulating box body which opens at the front by filling the space between an outer box 5 made of a steel plate and an inner box 6 made of synthetic resin with a foamable heat insulating material 7 such as polyurethane using an on-site foaming method. It is. A partition wall 9 containing a molded heat insulating material 8 such as styrofoam is attached to the inner box 6 of the heat insulating box 4, so that the inside of the heat insulating box 4 is divided into upper and lower sections, with an upper freezer compartment 2 and a lower freezer compartment 2. A refrigerator compartment 10 is configured.

The lower part of the refrigerator compartment 10 is further partitioned into two by a front partition member 11 and a partition plate 12, and a front partition member 13 and a partition plate 14, in which upwardly opening containers 15 and 16 are arranged, respectively. The insides are respectively an ice temperature room 17 and a vegetable room 18.

The front openings of the freezer compartment 2 and the refrigerator compartment 10 are connected to the insulation box 4 on the negative side.
The ice room 17 and the vegetable compartment 18 are closed in front by a door 22.23 which can be freely pulled out together with the containers 15 and 16.

In the freezer compartment 2 and the refrigerator compartment 10, a plurality of disc-shaped shelves 24, 25, etc. formed of transparent synthetic resin are rotatably provided. Further, disc-shaped shelves 26 and 27 are rotatably provided on the upper surfaces of the partition wall 9 and the partition plate 12, respectively. By rotating these shelves 24 or 25, items placed at the back can also be moved to the front,
Can be taken out easily.

Next, the structure around the freezer compartment 2 will be explained with reference to FIGS. 4 to 6. The rear part of the freezer compartment 2 is divided by a semi-circular back plate 28 that follows the arc of the shelf 24, and the shelf 24 of the freezer compartment 2 is a transparent box that is detachably supported on the front surface of the inner box 6 and the back plate 28. A holding plate 29 made of synthetic resin is attached on top and is rotatable by a rotating shaft 30 and an outer roller 31. Further, the shelf 26 is rotatably held by rollers 39 on the partition wall 9.

At this time, the front end of 19124 is dimensioned to project forward beyond the opening edge of the heat insulating box 4, that is, the opening edge of the outer box 5, and the front end of the partition wall 9 also projects forward accordingly. It has a curved shape. In addition, in response to this, door 2
0 (same as other doors) so that its inner surface protrudes forward.
It has a curved cross-sectional shape.

On the other hand, a molded heat insulating material 32 and a partition plate 33 are provided behind the back plate 28.
A cooling chamber 3 is constituted by these, and a cooler 34 included in the refrigeration cycle is housed and installed within this cooling chamber 3. This cooler 34 is a so-called cross fin tube type heat exchanger in which a plurality of metal fins are attached to a refrigerant vibrator.
It is provided vertically along the back surface of the inner box 6, and as shown in FIG.
It is installed with an inclination of 5° to 30° to the left. Due to this inclination, the defrosting water during defrosting can smoothly flow downward through the fins and drip from the lower end thereof.

A dew tray 35 is provided below the cooler 34 to receive this defrosting water. The upper surface of this dew pan 35 is inclined toward the drain port 36 at the right end, and the cooler 34 is installed along this inclination. The triangular invalid space created between the dew pan and the dew pan 35 can be reduced.

A blower 37 consisting of a propeller fan is mounted at three corners of the cooling chamber on the cold air discharge side 3A of the cooler 34 by a mounting plate 38 so as to correspond to the fan ring 33A of the partition plate 33 and face diagonally forward.

Here, since the back plate 28 has a semicircular arc shape, an ineffective space is created at both corners of the cooling chamber 3, but this ineffective space is utilized to allow cold air extending in the vertical direction by the molded heat insulating material 32. A discharge duct 40 and a cold air return duct 41 are configured. This cold air discharge duct 40 communicates with the blower 37, and has cold air discharge ports 42 formed in the back plate 28 corresponding to the left corners of each space partitioned by the shelf 24.
It is open to the inside of the freezer compartment 2. Similarly, the cold air return duct 41 is opened into the freezer compartment 2 through cold air suction ports 43 formed at the right corner of the back plate 28 corresponding to each space, and is connected to the cooler 34. It communicates with the middle of the cold air suction side 3B.

The cold air cooled by the cooler 34 is sucked into the cold air discharge side 3A on the left side by the blower 37, and then is sent to the cold air discharge duct 40 in the front. The cold air that has flowed into the cold air discharge duct 40 is discharged into the space above each shelf 24 from each cold air discharge port 42 . At this time, the cold air is blown diagonally forward from the cold air outlet 42, flows through the space above the shelf 24 as shown by the arrow in FIG.
3... into the cold air return duct 41 and the cooler 34
It returns to the middle of the cold air suction side 3B. Furthermore, since the cooler 34 is tilted but laid flat, the cold air flowing in from the cold air suction port 43 flows from the cold air suction side 3B to the cold air discharge side 3A.
It is possible to realize a cold air circulation path with a simple configuration and low ventilation resistance.

Next, the structure around the refrigerator compartment 10 will be explained with reference to FIGS. 7 to 10. Because the shelf 25 is circular, there is an ineffective space at the left and right corners of the refrigerator compartment 10.
0, a cold air supply duct 48 is configured to supply cold air to the ice room 17 and the like. Cold air supply duct 48 connects to refrigerator compartment 1
It extends vertically at the left corner of 0, and communicates with a cold air discharge duct 40 located above at a communication section 49 at the upper end. A damper 54 is installed in the cold air supply duct 48 and includes baffles 52 and 53 that communicate with the communication portion 49 and open and close discharge holes 50 and 51, respectively, for supplying cold air to each chamber 10 and IT. Furthermore, the inside of the cold air supply duct 48 is divided into a cold room passage 55 where a baffle 52 is located and an ice room passage 5 where a baffle 53 is located.
6, and each column 25 is configured in the refrigerating room passage 55.
A plurality of cold air outlets 45 are provided corresponding to the spaces defined in the area. In addition, a deodorizer 6 including an ozone generator 58, an ozone decomposition catalyst 59, etc. is provided in the icehouse passage 56.
0 is attached.

Of the cold air sent to the cold air return duct 40 by the blower 37, the cold air that flows downward descends straight as it is, passes through the communication part 49, and smoothly flows into the cold air supply duct 48. The damper 54 uses a single motor 61 to open and close both panfurs 52 and 53 based on the temperature of the refrigerator compartment 10 and the ice room 17, and the cold air flowing into the cold air supply duct 48 and flowing out from the discharge port 50 is cold air. The cold air is supplied from the outlet 45 to the refrigerator compartment 10 and flows out from the outlet 51 from the lower end of the cold air supply duct 48 to the ice chamber 1.
7. It is then fed to the vegetable compartment 18. Both chambers 10.17
The amount of cold air supplied to the chambers 10.17 is adjusted by the damper 54, and each chamber 10.17 has a refrigeration temperature, an ice temperature storage temperature (-1
~-3°C).

Here, the partition plate 12 located above the container 15 has a first
As shown in FIG. 1, a circular recess 62 for storing the shelf 27 is formed, and a bearing 63 and a roller 64 for rotatably supporting the shelf 27 are attached thereto. Further, a plurality of holes 68 are formed in the arc-shaped vertical wall 67 at the rear edge of the raised portion 66 at the front of the partition plate 12, and a small distance is formed between the holes 68 and the shelf 27. The cold air that has cooled the ice room 17 and the vegetable compartment 18 below the partition plate 12 returns to the refrigerator compartment 10 through this hole 68 . The raised portion 66 is approximately at the same height as the shelf 27, thereby allowing the hole 68 and the shelf 27 to
It covers the front edge of the head.

Furthermore, the lower front part of the partition wall 9 is provided with an S2
A plurality of suction lowers 0... are bored along the outer edge of the suction lower 5. The cold air in the refrigerator compartment 10 passes through the cold air return passage 46 formed in the molded heat insulating material 8 from this suction lower 0, and returns to the suction side of the cooler 34 from the return port 47 on the cold air suction side 3B of the cooler 34. .

At this time, since the suction lower 0 is formed in an arc shape along the outer edge of the shelf 25, the cold air flowing into the refrigerator compartment 10 from the holes 68 arranged in an arc shape and the shelf 2 from the lower part of the refrigerator compartment 10
Cold air rising through the arc-shaped space between the door 21 and the door 21 is also smoothly sucked in.

In addition, 71 is a pocket attached to the inner surface of the door 21,
Reference numeral 72 denotes an interior light attached to the corner opposite to the cold air supply duct 48.

(G) Effects of the Invention According to the present invention, the cold air sucked and discharged by the blower after being cooled by the cooler drops downward and is supplied to the refrigerator compartment, thereby supplying cold air to the refrigerator compartment. ducts can be easily formed, ventilation resistance is reduced, cooling efficiency is improved, and noise can be reduced.

Furthermore, compared to a refrigerator in which a duct is formed in the center of the back of the refrigerator, the thickness of the entire refrigerator can be made thinner.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a refrigerator to which the present invention is applied, FIG. 2 is a longitudinal sectional view of the refrigerator, FIG. 3 is a front view of the freezer compartment, FIG. 4 is a longitudinal sectional view of the refrigerator in the freezer compartment, and FIG. The figure is a cross-sectional view of the same, Figure 6 is a front view of the cooling chamber, Figure 7 is a cross-sectional view of the refrigerator in the refrigerator compartment, Figure 8 is a front view of the cold air supply duct, and Figure 9 is a cross-sectional view of the same. , FIG. 10 is a sectional view taken along line A-A in FIG.
FIG. 1 is a rear perspective view of the partition plate. l...refrigerator, 2...freezing room, 3...cooling room, 4
...insulation box, 10...refrigeration room, 24.25...
Shelf, 34...Cooler, 37...Blower, 40...
Cold air discharge duct, 45...Cold air outlet, 48...Cold air supply duct.

Claims (1)

[Claims] 1) A refrigerator in which a cooler is arranged vertically and horizontally at the back of a freezer compartment, and a cold air circulation blower is arranged at a rear corner of the freezer compartment on the cold air discharge side of the cooler, A refrigerator characterized in that a refrigerating compartment is divided below the freezing compartment, and a cold air supply duct is formed in a rear corner of the refrigerating compartment to communicate with the cold air discharge side of the cooler.