JP2532991B2 - refrigerator - Google Patents

Description

TECHNICAL FIELD The present invention relates to a refrigerator in which cold air cooled by a cooler is circulated in a storage chamber by a blower.

(B) Conventional technology Conventional refrigerators of this type are disclosed in Japanese Patent Publication No. 60-3322, which precedes the present application.
As shown in Japanese Patent Publication No. 4, a cooler is installed upright on the back of the freezer, and the cool air cooled by the cooler is sucked upward by a blower provided above the freezer in the center of the back of the freezer.
The air was blown into the freezer compartment in the front, and the cold air discharged from the blower was supplied to the refrigerating room by avoiding the cooler, once guiding it to the right side, and dropping it from there.

A dew tray is installed at the bottom of the cooler to collect dew dripping from the cooler during defrosting, and after adhering to the propeller fan of the blower, the frost melted during defrosting is refrigerated through the duct. It was configured to flow along the back of the inner box of the room.

(C) According to the configuration to be solved by the invention, after the frost that adheres to the propeller fan of the blower and is melted during defrosting, the frost is configured to flow along the back surface of the inner box of the refrigerator compartment. As a result, frost may adhere to the inside of the duct, the duct may become dirty due to dew, and the damper that opens and closes the cool air outlet of the duct must also be equipped with a seal member to prevent dew entry. was there.

 The present invention aims to solve such problems.

(D) Means for Solving the Problem The present invention is to install a cooler and a blower on the back of a freezer compartment of a refrigerator with left and right offset, and to install a dew tray under the cooler, and to install the blower. In a refrigerator in which a fixing plate for fixing is attached to a partition plate having an opening for accommodating a propeller fan of this blower, a guide plate having a downward slope toward the dew tray is provided below the opening of the partition plate. is there.

In addition, the guide plate is a rib integrally formed with the partition plate.

(E) Operation According to the present invention, the dew melted after adhering to the propeller fan can be dropped onto the guide plate and then guided to the dew tray by this guide plate, which is similar to the dew after defrosting the cooler. In addition, it can be led to the evaporation tray through the dew receiving tray and the drain pipe to be evaporated. As a result, it is not necessary to pass the molten dew into the duct after the frost is formed on the propeller fan as in the conventional case, and it is possible to prevent the frost from being formed again in the duct and the duct from being contaminated by the dew. Furthermore, it is not necessary to attach a seal member for preventing dew ingress to the damper that opens and closes the cool air outlet of the duct, and the construction can be simplified and the assembling workability can be improved.

Further, since the guide plate is formed integrally with the rib after the attachment, the number of parts is not increased, so that the assembling workability can be further improved.

(F) Example Next, an example of the present invention will be described with reference to the drawings.

Reference numeral 4 denotes a heat-insulating box body formed by filling a space between an outer box 5 made of a steel plate and an inner box 6 made of synthetic resin with a foaming heat insulating material 7 such as polyurethane by an on-site foaming method to open the front side. 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, whereby the inside of the heat insulating box 4 is divided into upper and lower compartments and an upper freezing chamber 2 and a lower compartment. Refrigerating room 10 is configured.

The lower part of the refrigerating chamber 10 is further partitioned into two chambers by a partition member 11 and a partition plate 12, and a partition member 13 and a partition plate 14, and containers 15 and 16 having upper openings are arranged therein, The inside is an ice greenhouse 17 and a vegetable compartment 18, respectively. The front openings of the freezing compartment 2 and the refrigerating compartment 10 are openably and closably closed by doors 20 and 21 that are rotatably supported by the heat insulating box 4 on one side, and the front of the ice greenhouse 17 and the vegetable compartment 18 are It is closed together with the respective containers 15 and 16 by doors 22 and 23 that can be pulled out.

In the freezer compartment 2 and the refrigerating compartment 10, disc-shaped shelves 24 and 25 formed of transparent synthetic resin are rotatably provided in plural stages. Further, disk-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, the articles placed in the back can also be moved to the front and easily taken out.

Next, the structure near the freezer compartment 2 will be described with reference to FIGS. 3 to 6. The rear part of the freezer compartment 2 is partitioned by a semi-arcuate back plate 28 along the arc of the shelf 24.
Is mounted on a holding plate 29 made of transparent synthetic resin that is detachably supported on the front surfaces of the inner box 6 and the back plate 28, and is rotatable by a rotating shaft 30 and an outer roller 31. The shelf 26 is rotatably held by rollers 39 on the partition wall 9.

At this time, the front end of the shelf 24 is dimensioned so as to project more forward than the opening edge of the heat insulating box body 4, that is, the opening edge of the outer box 5,
Further, the front end of the partition wall 9 also has a curved shape that projects forward accordingly. Corresponding to this, the door 20
The other doors also have a curved cross-section so that the inner surface thereof projects forward.

On the other hand, behind the rear plate 28, the cooling chamber 3 is constituted by the molded heat insulating material 32 and the partition plate 33, and in this cooling chamber 3, the cooler 34 included in the refrigeration cycle is housed and installed. This cooler
Reference numeral 34 is a so-called cross fin tube type heat exchanger in which a plurality of metal fins are attached to a refrigeration pipe, which is provided vertically along the back surface of the inner box 9 and has a cold air flow direction of 15 ° with respect to the horizontal. It is attached to the left side with a slope of -30 °. Due to this inclination, the defrost water flows well down the fins and can be dripped from the lower end thereof.

A dew tray 35 that receives this defrost water is provided below the cooler 34. The upper surface of this dew tray 35 is the drain port at the right end.
The cooler 34 is inclined toward 36, and the cooler 34 is provided along this slope. When the cool air flow direction is set to be vertical, a triangular invalid space formed between the cooler 34 and the dew tray 35. Can be reduced.

At the corner of the cooling chamber 3 on the cool air discharge side 3A of the cooler 34, a blower 37 consisting of a propeller fan corresponds to the fan ring 33A of the partition plate 33 by a mounting plate 38 attached to the partition plate 33.
It is installed facing diagonally forward.

Here, since the back plate 28 is in the shape of a semi-circle, ineffective spaces are generated at both corners of the cooling chamber 3. By utilizing this ineffective space, the cold air extending vertically by the molded heat insulating material 32 is formed. A discharge duct 40 and a cool air return duct 41 are configured. This cold air discharge duct 40 communicates with the blower 37 part, and the shelf
Cold air discharge ports 42 formed on the back plate 28 corresponding to the left corners of the spaces partitioned by 24 are opened into the freezer compartment 2. Similarly, the cool air return duct 41 is opened into the freezer compartment 2 through the cool air suction ports 43 formed at the right corners of the back plate 28 corresponding to each space, and the cool air suction of the cooler 34 is performed. It connects to the middle of side 3B.

The cool air cooled by the cooler 34 is sucked by the blower 37 toward the cool air discharge side 3A on the left side, and is then sent to the cool air discharge duct 40 on the front side. The cold air that has flowed into the cold air discharge duct 40 is discharged to the space on each shelf 24 by each cold air discharge port 42 .... At this time, the cool air is blown out obliquely forward from the cool air discharge port 42, flows through the space on the shelf 24 as shown by the arrow in FIG. 4, and the cool air suction port 43 corresponding to each space except the uppermost stage cool air return duct 41. And returns to the middle of the cool air suction side 3B of the cooler 34. Further, since the cooler 34 is slanted but laid down, the cool air flowing in from the cool air suction port 43 can smoothly flow laterally from the cool air suction side 3B to the cool air discharge side 3A, and has a simple structure. Thus, it is possible to realize a cold air circulation path with less air flow resistance.

Further, 50 is an inside lamp (15W) mounted on the partition plate 33 on the side opposite to the blower 37 via a socket fitting 51. The partition plate 33 functions as a fixture for the fan motor 37.

Here, the fan ring 33A of the partition plate 33 is a rib protruding forward, and the propeller fan 52 of the blower 37 is housed and attached by the attachment plate 38 in the rib. A cutout 53 is formed in the lower part of the fan ring 33A. Below the fan ring 33A, two slopes are formed toward the dew tray 35 and the ribs are inclined downward.
A guide plate 56 including 54 and 55 is integrally formed with the partition plate 33. Here, as shown in FIG. 8, among the ribs of the guide plate 56, the lower rib 54 is formed to project from the upper rib 55. Further, as shown in FIG. 9, holes 57 are formed in the partition plate 33 located at the lowermost ends of the ribs 54, 55.

According to the present invention, the dew melted after adhering to the propeller fan 52 at the same time as the defrosting of the cooler 34 is dropped onto both the ribs 54, 55 of the guide plate 56 through the notch 53 of the fan ring 33A. Then, let it flow down along these ribs 54, 55 and
It can be led from 7 to the back side of the partition plate 33 to the dew tray 35 installed at the lower part of the cooler 34. As a result, the dew adhering to the propeller fan 52 is transferred to the evaporating pan (not shown) installed in the lower part of the refrigerator through the dew receiving pan 35 and the drain pipe 36, similarly to the dew after the defrosting of the cooler 34. Can be guided and evaporated. This eliminates the need for melting and passing the dew into the duct after the frost is formed on the propeller fan 52 as in the conventional case, and it is possible to prevent the frost from being formed again in the duct or the duct from being contaminated by the dew. Furthermore, it is not necessary to attach a seal member for preventing dew ingress to the damper that opens and closes the cool air outlet of the duct, and the construction can be simplified and the assembling workability can be improved.

Further, ribs 54,5 formed by integrally forming the guide plate 56 on the partition plate 33.
By setting the number to 5, the number of parts is not increased, so that the assembling workability can be further improved.

(G) Effect of the Invention As described above, according to the present invention, after the dew that has adhered to the propeller fan and melted is dropped on the guide plate, it can be guided to the dew tray by this guide plate, and the defroster of the cooler can be performed. Similarly to the case after the dew, the dew receiving pan and the drain pipe can be introduced to the evaporation pan to evaporate. As a result, it is not necessary to pass the molten dew into the duct after the frost is formed on the propeller fan as in the conventional case, and it is possible to prevent the frost from being formed again in the duct and the duct from being contaminated by the dew. Furthermore,
It is not necessary to attach a seal member for preventing dew ingress to the damper that opens and closes the cool air outlet of the duct, and the structure can be simplified and the assembling workability can be improved.

Further, since the guide plate is formed integrally with the rib after the attachment, the number of parts is not increased, so that the assembling workability can be further improved.

[Brief description of drawings]

FIG. 1 is a perspective view of a refrigerator to which the present invention is applied, FIG. 2 is a vertical sectional view of the refrigerator, FIG. 3 is a front view showing an internal structure of a cooling chamber, and FIG. Fig. 5 is a plan view of the blower, Fig. 6 is a front view of the main part of the partition plate, Fig. 7 is a bottom view of the partition plate, and Fig. 8 is a cross section taken along the line AA 'in Fig. 6. FIG. 9 and FIG. 9 are sectional views taken along the line BB 'of FIG. 1 ... Refrigerator, 2 ... Freezer room, 3 ... Cooling room, 4 ... Insulation box, 10 ... Refrigerating room, 24, 25 ... Shelf, 28 ... Rear plate,
33 …… Separator, 33A …… Fan ring, 34 …… Cooler, 37
...... Blower, 52 …… Propeller fan, 53 …… Notch, 54,5
5 …… Rib, 56 …… Guide plate, 57 …… Hole.

Claims (2)

(57) [Claims] 1. A cooler and a blower are installed on the back of a freezer compartment of a refrigerator by shifting them to the left and right, a dew tray is installed under the cooler, and a mounting plate for fixing the blower is attached to a propeller of the blower. A refrigerator mounted on a partition plate having an opening for accommodating a fan, wherein a guide plate having a downward slope toward the dew tray is provided below the opening of the partition plate. 2. The refrigerator according to claim 1, wherein the guide plate is a rib integrally formed with the partition plate.