KR100430378B1 - Refrigerator - Google Patents

Abstract

1. Technical field to which the invention described in the claims belongs

The present invention relates to a refrigerator that divides an inside of a heat insulating box body as a partition wall and distributes cold air from a cooler as an air blower to each room.

2. Technical Challenges to be Solved by the Invention

Provided is a refrigerator capable of suppressing an increase in ventilation resistance by a damper and a reduction in an effective volume in a refrigerator.

3. The point of the solution of the invention

The refrigerator (1) comprises a freezing compartment (13) and a refrigerating compartment (11) by partitioning the inside of the heat insulating box body by a partition wall (8) and cooling air cooled by a cooling machine is blown by a blower A guide duct 26 for guiding cool air from the cooler into the refrigerator compartment 11 and a damper device 26 installed in the guide duct 26 for controlling the amount of cold air flowing through the duct 26 31 and the guide duct 26 has an opening 20 at one end and the damper device 31 is inserted into the duct 26 at the opening 20 of the duct 26, And a flange 36 which is gas-tightly attached to the peripheral edge portion 52 of the opening 20.

4. Important Uses of the Invention

Improvement of control performance of cold air supply amount, avoidance of malfunction due to prevention of leakage into the damper device, simplification of duct shape, increase of supply air volume, effective volume of storage room.

Description

Refrigerator

(Industrial use field)

The present invention relates to a refrigerator that divides an inside of a heat insulating box body as a partition wall and distributes cold air from a cooler as an air blower to each room.

(Prior art)

This type of conventional refrigerator is disclosed, for example, in Japanese Utility Model Publication No. 6-12301 (F25D 23/00).

FIG. 9 and FIG. 10 show a conventional refrigerator 101.

The refrigerator 101 includes a heat insulating member 106 of a top face opening formed by charging a heat insulating material 104 such as foamed polyurethane as a field foaming method between an outer case 102 made of a steel plate and an inner case 103 made of hard resin ).

The inside of the refrigerator of the heat insulating housing 106 is integrally formed with the inner box 103 and the upper and lower partition walls 108 and 109 in which the molded heat insulating material 107 is housed therein form three And the upper portion of the upper partition wall 108 is defined as a refrigerating chamber 111 and the lower portion of the lower partition wall 109 is defined as a vegetable chamber 112 and a refrigerating chamber 113 is defined between them.

The front opening of the refrigerating chamber 111 is opened and closed by a rotary type heat insulating door 114 while the refrigerating chamber 113 and the vegetable chamber 112 are provided with the containers 114A, (The freezing chamber 113 is closed by the upper and lower two stages) 117 by means of the draw-out heat insulating doors 114 and 116, respectively.

A cooling chamber 122 is partitioned as a partition plate 121 at the inner side of the refrigerating chamber 113 and a cooler 123 is provided vertically in the cooling chamber 122.

A blower 124 is provided above the cooler 123. A discharge opening 113A for the freezing chamber is formed at an upper portion and a central portion of the partition plate 121 and a suction opening 113B for a freezing room is formed at a lower portion.

A guide duct 126 is formed at the rear of the inside of the molded heat insulating material 107 in the upper partition wall 108 so as to penetrate the upper and lower portions of the upper and lower partition walls 108. The guide duct 126 is configured to bypass the blower 124 And communicates the inside of the cooling chamber 122 with the inner lower end of the refrigerating chamber 111.

On the other hand, a rear duct plate 127 is attached to the inside of the refrigerating chamber 111 at a distance from the rear surface of the inner box 103, and a refrigerating chamber (not shown) extending vertically between the rear duct plate 127 and the inner box 103 A rear duct 128 is formed.

The lower end of the refrigerating compartment backside duct 128 is connected to a damper case 131 of a heat insulating material provided on an upper partition wall 108 in a lower inner portion of the refrigerating compartment 111. The lower portion of the damper case 131 And passes through the upper end of the guide duct 126. In the damper case 131, the refrigerating compartment backside duct 128 and the guide duct 126 communicate with each other.

A damper thermostat (thermostat) 132 for detecting the temperature in the refrigerating chamber 111 and opening and closing the flow path to the refrigerating chamber rear duct 128 is accommodated in the damper case 131, A discharge port 111A for the refrigerator compartment is formed on the front surface of the duct plate 127.

On the front side of the damper case 131 is formed an ice-cold corner 133 which is substantially divided into a surrounding refrigerating chamber 111. A discharge opening 133A for the ice-cold corner 133 is also formed in the damper case 131 .

Inside the ice-making corner 133 is formed a cool air inlet 134 to the vegetables room 112. The cool air inlet 134 and the greenhouse outlet 112A formed in the greenhouse 122 are connected to the heat insulating material 104 (Not shown).

In addition, a vegetable-room return duct 138 is formed in the molded heat insulating material 107 in the lower partition wall 109 so that the upper part of the inside of the vegetable room 112 and the lower part of the cooling chamber 122 communicate with each other.

In the above-described configuration, when a compressor (not shown) and the blower 124 constituting the refrigeration cycle of the cooler 123 and the well-known refrigeration cycle are operated, the cool air cooled by the cooler 123 is blown by the blower 124, (113A) into the freezing chamber (113).

After cooling in the freezing chamber 113, the cool air is returned from the lower freezing room inlet 113B to the lower portion of the cooling chamber 122. [

Thereby, the freezing chamber 113 is maintained at a predetermined cooling temperature (-20 deg. C degree).

A part of the cool air ejected from the blower 124 flows into the guide duct 126 and rises through the damper thermostat 132 in the refrigerating compartment rear duct 128 and then discharged from the refrigerating compartment outlet ports 111A, And is sprayed into the refrigerating chamber (111).

The damper thermostat 132 controls the opening / closing of the cold air supply to the duct 128 based on the temperature in the refrigerating chamber 111 to maintain the temperature in the refrigerating chamber 111 at a predetermined refrigeration temperature (for example, about +5 캜) do.

Also, since relatively cold air is supplied to the narrow region of the ice-cold corner 133, it is cooled to a low temperature of about 0 占 폚 to -1 占 폚, for example.

The cool air circulated in the refrigerating chamber 111 (including the inside of the ice-temperature corner 133) flows into the kitchen room duct 136 from the cool air introducing port 134 and flows therefrom through the vegetable room outlet 112A to the vegetables room (112).

After cooling the inside of the container 117A by circulating in the vegetables chamber 112 and then indirectly cooling the inside of the container 117A through the inside of the circulating duct 138 of the vegetable room formed in the lower partition wall 109, .

Whereby the vegetables in the container 117A are maintained at a temperature of about + 8 占 폚 to + 10 占 폚 in a state of being prevented from drying.

(Problems to be solved by the invention)

The coolant supply to the conventional refrigerating chamber 111 is controlled by the damper thermostat 132 installed in the damper case 131 on the inner side of the upper partition wall 108. The damper thermostat 132 is a gas- And a baffle plate 132B protruding upward from the main body 132A. By moving the baffle plate 132B back and forth, the air in the damper case 131 (Air passage) inlet 131A.

As a result, the internal volume of the refrigerating chamber 111, particularly the volume of the lower portion (including the ice-cold corner 133), becomes significantly narrower, which is desired to be improved.

The damper case 131 including the damper thermostat 132 is attached from the front side (on the side of the ice-cold corner 133) and the damper case 131 is formed with an air passage inlet 131A opened on the upper surface, Since the flow path is bent and the flow of the cold air is complicated, the air flow resistance of the cold air to the refrigerating chamber 111 is increased, and the air flow amount is decreased.

(Means for solving the problem)

It is an object of the present invention to solve such a conventional technical problem, and it is an object of the present invention to provide a refrigerator which can suppress an increase in ventilation resistance by a damper and a decrease in an effective volume in a refrigerator.

According to the present invention, the refrigerator includes a first storage room and a second storage room by partitioning the heat insulating housing by a partition wall, and distributes refrigeration air cooled by the cooler to both storage rooms by a blower A duct for guiding cool air from the cooler to the second storage room and a damper installed in the duct for controlling the amount of cool air flowing through the duct.

2. The refrigerator according to claim 1, wherein the refrigerator includes a freezing compartment and a refrigerating compartment by partitioning the inside of the heat-insulating box body by a partition wall, and a cooler and a blower are installed inside the freezing compartment, And a damper installed in the rear portion of the partition wall for guiding cool air from the cooler to the refrigerator and a damper for adjusting the amount of cool air flowing through the duct.

According to this configuration, since the damper is provided in the duct formed in the rear portion of the partition wall, the effective volume in the second storage chamber (refrigerating chamber) by the damper thermostat is not narrowed as in the prior art.

Further, since the damper is installed in the duct, the shape of the duct can be simplified, and the flow of cold air can be simplified, thereby making it possible to increase the supply air volume.

According to the refrigerator of the present invention, the first storage room and the second storage room are constituted by partitioning the inside of the heat insulating box body by the partition wall, and the cool air cooled by the cooler can be distributed and supplied to the both storage rooms by the blower A duct for guiding the cool air from the cooler to the second storage room and a damper device installed in the duct for regulating the amount of cold air flowing through the duct, the duct having an opening at one end At the same time, the damper device has a flange inserted into the duct at the opening of the duct and attached to the periphery of the opening by gas sealing.

According to such a configuration, since the damper device is provided in the duct guiding the cooling air to the second storage room, the effective volume in the second storage room (the refrigerating compartment) by the damper thermostat is not narrowed as in the prior art.

Since the damper device is inserted into the duct from the opening of one end of the duct, it is possible to simplify the shape of the air flow around the damper device and to reduce the ventilation resistance of the cold air to increase the amount of cold air supplied to the second storage chamber .

Further, since the damper device has the flange attached to the periphery of the opening perforated by gas sealing, the flow of cool air bypassing the damper device is also prevented, and the control performance of the cool air supply amount is also improved.

According to a fourth aspect of the present invention, in addition to the above, the peripheral edge portion of the opening for contacting the flange of the damper device is set higher than the outer peripheral portion.

According to such a configuration, even in the case where the moisture of food or the like is overflowed into the second storage room, the leakage of the leakage water into the damper device does not occur, thereby preventing the occurrence of the operation failure due to flooding It is possible.

According to a fifth aspect of the present invention, in addition to the above inventions, a recess is provided on the outer periphery of the opening perimeter of the duct, and a drain pipe communicating with the storage compartment below the recess is provided in the recess.

According to such a configuration, the leakage water as described above is accommodated in the concave portion of the outer periphery of the opening of the opening, and can be discharged to a lower storage room through the drain pipe and processed.

[Example]

Next, embodiments of the present invention will be described in detail based on the drawings.

FIG. 1 is a longitudinal sectional view of the refrigerator 1 of the present invention, and FIG. 2 is a front view of the refrigerator 1 (a partial perspective view except for the door).

The refrigerator 1 is provided with a heat insulating member 6 of a front opening which is filled with a heat insulating material 4 such as foamed polyurethane as a field foaming method between an outer case 2 made of a steel plate and an inner case 3 made of hard resin ).

The inside of the refrigerator of the heat insulating box 6 is integrally formed with the inner box 3 and has an upper partition wall 8 in which molding heat insulating materials 5 and 7 are housed, The upper part of the upper partition wall 8 is divided into the refrigerating compartment 11 (second storage compartment) and the lower part of the lower compartment wall 9 by the lower compartment wall 9, (12) and a freezing chamber (13) (first storage chamber) between them.

The front opening of the refrigerating compartment 11 is closed by the rotary heat insulating door 14 while the freezing compartment 13 and the vegetable compartment 12 are opened by a drawer having a container (not shown) (The freezing chamber 13 is closed by these upper and lower two stages) 17 in a freely openable and closable manner.

A cooling chamber 22 is partitioned as a partition plate 21 at the inner side of the freezing chamber 13 and a cooler 23 is installed in the cooling chamber 22 in a vertical direction.

A blower 24 is provided above the cooler 23 and a discharge opening 13A for the freezing chamber is formed at an upper portion and a central portion of the partition plate 21 and a suction opening 13B for a freezing room is formed at a lower portion.

Further, the molded heat insulating material 7 on the rear side in the upper partition wall 8 is made of, for example, foamed styrene or the like, and the guide duct 26 is formed in the molded heat insulating material 7 so as to penetrate the molded heat insulating material 7 up and down have.

The upper opening 20 of the guide duct 26 is formed on the upper surface of the molded heat insulating material 7 located at the inner lower end of the refrigerating chamber 11.

The guide duct 26 communicates the inside of the cooling chamber 22 with the opening 20 in such a manner as to bypass the blower 24.

As shown in FIG. 6, the recess 51 is formed at the outer portion of the peripheral edge portion 52 of the opening 20 of the molded heat insulating material 7 (upper partition wall 8) , So that the peripheral edge portion 52 is higher than the outer portion, that is, the recessed portion 51.

7, the peripheral edge portion 52 may be formed to be higher than the outer side (this portion is a recessed portion) without forming the recessed portion 51. As shown in FIG.

On the other hand, a rear duct plate 27 is attached to the inside of the refrigerating chamber 11 at a distance from the rear face of the inner box 3, and a refrigerating chamber (not shown) extending vertically between the rear duct plate 27 and the inner box 3 A rear duct 28 is formed.

The lower end of the refrigerating compartment rear face duct 28 communicates with the upper end of the guide duct 26 in such a manner as to close the opening opening 20 from above.

In addition, the front face of the rear duct plate 27 is provided with a discharge opening 11A for a refrigerator compartment.

A damper device 31 is attached to an upper end portion of the guide duct 26 in the molded heat insulating material 7.

The damper device 31 includes a case 32 having a rectangular shape with open top and bottom as shown in FIGS. 3 to 5, a damper 33 provided rotatably in the case 32, And a motor 34 formed of a stepping motor or a DC motor for rotating the damper 33 attached to the outer surface.

A flange 36 is formed on the entire circumference of the upper opening of the case 32 so as to extend outwardly. A half of the front side of the inner surface of the case 32 is divided into left and right seals 37 and 38, 37 is the top).

The damper 33 is freely rotatable as a shaft portion 33A which is laterally crossed by the seal portions 37 and 38. In the substantially horizontal state, the peripheral edge of the damper 33 is engaged with the lower surface of the seal portion 37 and the seal portion 38 And closes the air passage in the case 32 in a vertical state while substantially completely opening the air passage in the case 32. [

The output shaft of the motor 34 is connected to the shaft portion 33A of the damper 33. [

The damper device 31 is inserted into the guide duct 26 in the molded insulation member 7 from the opening 20 at the upper end before assembling the molded heat insulating member 7 into the upper partition wall 8 Leave.

Thereby, the air passage in the case 32 becomes a part of the guide duct 26.

At this time, the outer surface of the case 32 is brought into close contact with the inner surface of the guide duct 26, and at the same time, the flange 36, which is installed around all the circumference of the case 32, Sealing between the guide duct (26) and the damper device (31).

In addition, the motor 34 is arranged in the molded heat insulating material 7.

Then, with the damper device 31 attached in this way, the molded heat insulating material 7 is assembled in the upper partition wall 7.

Although the above-described ice-cold corner is formed in each of the drawings, the corners of the same shape may be provided in the lower portion of the refrigerating chamber 11 or may not be provided.

A cold air inlet port 41 to the vegetable compartment 12 is formed in the lower portion of the refrigerating compartment 11 and the outlet port 12A formed in the air inlet port 41 and the vegetable compartment 12 is connected to a heat insulating material 4 through the vegetable practical duct 42 which descends.

An upper end of a drain pipe 56 buried in the molded heat insulating material 7 is connected to the bottom of the concave portion 51 on the outer periphery of the opening 20 in a communicative manner.

The drain pipe 56 is inclined downward toward the right side toward the inside of the molded heat insulating material 7 and its lower end communicates with the side wall of the vegetable room duct 42.

As a result, the concave portion 51 communicates with the vegetable compartment 12 below the vegetable practical duct 42.

Further, a vegetable-room return duct 43 is formed in the molded heat insulating material 10 in the lower partition wall 9 so that the upper portion of the vegetable chamber 12 and the lower portion of the cooling chamber 22 are in communication with each other.

In the above configuration, when the compressor (not shown) and the blower 24 that constitute the known refrigeration cycle are operated, the cool air cooled as the cooler 23 is blown by the blower 24 to the freezer room discharge port 13A ) Into the freezing chamber (13).

After cooling in the freezing chamber 13, the cool air is circulated from the lower freezing room inlet 13B to the lower portion of the cooling chamber 22.

Thereby, the freezing chamber 13 is maintained at a predetermined freezing temperature (about -20 캜).

A part of the cool air blown out from the blower 24 flows into the guide duct 26 and flows through the openings 20 in the case 32 of the damper device 31 via the damper 33 Flows into the refrigerating compartment rear duct (28).

Then, after rising in the duct 28, the refrigerant is blown into the refrigerating chamber 11 from the refrigerating chamber discharge ports 11A.

The motor 34 of the damper device 31 is controlled by a controller (not shown) having a sensor for detecting the temperature in the refrigerating chamber 11, and the damper 33 is rotationally driven as indicated by an arrow 32 (the guide duct 26).

Thus, the supply of cold air to the refrigerating chamber rear duct 28 is controlled so that the temperature in the refrigerating chamber 11 is maintained at a predetermined refrigeration temperature (for example, about +5 DEG C).

The cool air circulated in the refrigerating chamber 11 flows into the vegetable room duct 42 at the cool air inlet 41 and is discharged into the vegetable chamber 12 through the outlet 12A for the vegetable room.

The cool air is circulated through the inside of the cooling chamber 22 through the inside of the cabinet return duct 43 formed in the lower partition wall 9 after circulating in the cabinet 12 to indirectly cool the container .

Thereby, the vegetables in the container are kept refrigerated at a temperature of about + 8 ° C to + 1 ° C in a state of being prevented from drying.

As described above, in the present invention, since the damper device 31 is provided in the guide duct 26 formed in the molded heat insulating material 7 in the rear part of the upper partition wall 8, the damper device 31 is provided in the refrigerating chamber 11 by the damper thermostat The effective volume is not narrowed.

Since the damper device 31 is inserted into the duct from the opening 20 of the guide duct 26, the duct shape (guide duct 26) can be simplified and the flow of air can be simplified, It is possible to increase the number of the display pixels.

Since the damper device 31 has the flange 36 attached to the peripheral edge portion 52 of the opening 20 by gas sealing, it is possible to prevent the flow of cold air bypassing the damper device 31, The control performance of the supply amount is also improved.

Further, since the motor 34 is located inside the molded heat insulating material 7, it is free from malfunction due to condensation and at the same time, the periphery of the opening 20 in which the flange 36 of the damper device 31 abuts 52 are set higher than the outside portion, that is, the concave portion 51, when the moisture of the food such as the food is overflowing in the refrigerating chamber 11, the leakage flows into the concave portion 51 and is accommodated.

Therefore, such leakage water does not flow into the damper device 31, so that there is no danger that the damper 33 or the motor 34 floods and malfunction occurs.

The leakage water flowing into the concave portion 51 passes through the drain pipe 56 and flows out to the vegetable room duct 42 and is led to the vegetable compartment 12.

The leaking water that has flowed into the vegetable compartment 12 is attached to the cooler 23 as soon as possible, and thereafter drained to the outside as drain water (drainage).

Furthermore, since the damper device 31 can be attached to the molded heat insulating material 7 in advance and assembled into the upper partition wall 8 in this state, the assembling workability can be remarkably improved.

The damper device 31 includes a damper 33 positioned in the guide duct 26 and a motor 34 disposed in the molded heat insulating material 7 outside the guide duct 26 for rotationally driving the damper 33. [ The entire damper device 31 can be miniaturized and the effective volume in the heat insulating housing 6 (the freezing chamber 13 and the refrigerating chamber 11) can be further improved.

In the embodiment, the refrigerating compartment 11, the freezing compartment 13 and the vegetable compartment 12 are partitioned from above in the heat insulating housing 6. However, the present invention is not limited to this configuration, The invention is valid.

Furthermore, the damper device is not limited to a motor type, and a mechanical damper such as a damper thermostat using a change in gas pressure due to temperature may be used.

A polyurethane foam may be used for the heat insulating material of the partition wall, and a duct provided on the partition wall may be a molded product such as injection molding.

FIG. 1 is a longitudinal side view of the refrigerating chamber of the present invention,

FIG. 2 is a partially front view of the refrigerator compartment of the present invention. FIG.

3 is a plan view of the damper device;

4 is a front view of the damper device;

FIG. 5 is a longitudinal side view of the damper device. FIG.

FIG. 6 is an enlarged longitudinal side view of the refrigerating chamber of the present invention of the guide duct portion. FIG.

FIG. 7 is an enlarged longitudinal side view corresponding to FIG. 6 of a refrigerator of another embodiment of the present invention. FIG.

FIG. 8 is an enlarged longitudinal sectional view of the refrigerator of the present invention in an upper partition wall; FIG.

FIG. 9 is a longitudinal side view of a conventional refrigerator; FIG.

Figure 10 is a partial perspective view of a conventional refrigerator compartment.

DESCRIPTION OF THE REFERENCE NUMERALS

1. Refrigerator room 4. Insulation material

6. Insulation body 7. Mold insulation

8. Upper partition wall 9. Lower partition wall

11. Refrigerator room 12. Vegetable room

13. Freezer 20. Partition plate

23. Cooler 24. Blower

As described above, according to the invention of Claims 1 and 2, since the damper is provided in the duct formed in the rear portion of the partition wall, the narrowing of the effective volume in the second storage chamber (refrigerating chamber) by the damper thermostat I will not.

Further, by providing the damper inside the duct, the shape of the duct can be simplified, and the flow of cool air can be simplified, so that the supply air volume can be increased.

According to the invention of claim 3, since the damper device is provided in the duct guiding the cool air to the second storage room, the effective volume of the second storage room is not narrowed by the damper thermostat as in the conventional case.

Further, since the damper device is inserted into the duct at the opening of the duct end, it is possible to simplify the air flow shape around the damper device and reduce the ventilation resistance of the cooling air to increase the cold air supply amount to the second storage chamber do.

Further, since the damper device has the flange attached to the periphery of the opening per se by gas sealing, the flow of cool air bypassing the damper device can be prevented, and the control performance of the cool air supply amount is also improved.

In addition, in the invention of claim 2, since the perimeter edge of the open mouth where the flange of the damper device comes into contact with the damper device is set to be higher than the outer peripheral part of the damper device, the moisture in the food, It is possible to avoid the occurrence of such leakage of water into the apparatus, thereby avoiding occurrence of malfunction due to flooding.

Further, according to the invention of Claim 3, in addition to the above-mentioned respective inventions, the recessed portion is provided on the outer periphery of the peripheral edge portion of the opening of the duct, and the drainage pipe communicating with the recessed portion below the recessed portion is provided. The leaking water as described above is accommodated in the recess of the outer periphery of the opening of the opening of the opening of the opening of the opening of the opening of the opening of the opening of the opening.

Claims (5)

The first storage room and the second storage room are formed by partitioning the inside of the heat insulating box body by the partition wall 8 and the cool air cooled by the cooler is distributed and supplied to the both storage rooms by the blower 24 In the refrigerator, A duct 26 formed in the partition wall for guiding cool air from the cooler to the second storage room and a damper 31 installed in the duct for controlling the amount of cool air flowing through the duct 26 Wherein the refrigerator is a refrigerator. The freezing compartment 13 and the refrigerating compartment 11 are constituted by partitioning the inside of the heat insulating box body by the partition wall 8 and the cooler 23 and the blower 24 are provided in the inside of the freezing compartment, A refrigerator as claimed in claim 1, A duct 26 formed at the rear of the partition wall for guiding cool air from the cooler 23 to the cold storage room and a damper 33 for controlling the amount of cold air flowing through the duct. The refrigerator. By partitioning the inside of the heat insulating box body by the partition wall 8, the first storage room and the second storage room are constituted, and the cool air cooled by the cooler 23 is distributed and supplied to the both storage rooms by the blower In the refrigerator, A duct 26 for guiding the cool air from the cooler 23 to the second storage room and a damper device 31 installed in the duct for regulating the amount of cold air flowing through the duct, Characterized in that the damper device (31) has a flange which is inserted into the duct at the opening of the duct and is gas-tightly attached to the peripheral edge of the opening. The method of claim 3, Wherein a peripheral edge portion of the opening of the damper device (31) in contact with the flange is set higher than a peripheral portion thereof. The method according to claim 3 or 4, Wherein a recessed portion is provided on the outer periphery of the peripheral edge portion of the opening of the duct and a drain pipe is provided in the recessed portion so as to communicate with the storage chamber below the recessed portion.