JP2741470B2 - Freezer refrigerator - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates, by a partition wall inside the refrigerator
It is divided into a freezer compartment and a refrigerator compartment, and a cooler provided on the freezer compartment side
Cooling the freezer compartment and removing the cold air in the freezer compartment
Freezer refrigeration that cools the refrigerator compartment by supplying it to the refrigerator compartment
About the warehouse.

[0002]

2. Description of the Related Art As a conventional technology of this type of refrigerator-freezer,
Are disclosed, for example, in Japanese Utility Model Laid-Open No. 55-17280 and
As shown in JP-A-1168969,
The freezer compartment provided and the refrigerator compartment provided below are connected via a damper thermostat.
And the temperature of the refrigerator compartment rises.
Then the damper thermometer opens automatically, and the cold air goes down
Refrigerates cold air in the freezer compartment by using
There is one that leads to the room to cool the refrigerator compartment
You. Further, as another conventional technique, for example,
No. 89783 discloses a freezer and refrigeration.
Communication with the chamber through an air passage with a damper thermo
A fan is installed at the outlet of the air passage on the side of the refrigerator ,
When the temperature of the storage room rises, the damper thermostat opens automatically,
Forced suction of cold air in the freezer compartment by rotation of the fan
And discharge it to the refrigerator compartment to cool the refrigerator compartment.
Some of them have been used.

[0003]

However, the above-mentioned first method is not applicable.
In conventional technology, the door of the refrigerator compartment has been opened for a long time.
Continued, or the door was frequently opened and closed,
If the temperature is much higher than desired,
Insufficient cooling function due to natural movement of cold air in freezer compartment
Time for the temperature in the refrigerator to drop to the desired temperature
There is a problem that it takes too much. In addition, the latter
In the conventional technology, the cool air in the freezer compartment is
When you are forcibly and suddenly led to the refrigerator compartment, the dumper thermo
High responsiveness, the cooling function by the cold air
The problem is that the temperature inside the refrigerator compartment is too low
is there.

The present invention has been made to solve such a problem.
The purpose was to increase the temperature inside the refrigerator compartment.
When it becomes cold, it cools the refrigerator compartment at a moderate speed and
Refrigerator that prevents frost from adhering to the damper thermostat
Is to provide.

[0005]

[MEANS FOR SOLVING THE PROBLEMS] To achieve the above object
The first structural feature of the present invention is the inner wall surface on the refrigerator compartment side.
The inside is connected to the freezer through the air supply passage.
A case with a suction port and a discharge port facing the refrigerator compartment
And the air inside the freezer, assembled to the casing
And the air in the refrigerator compartment through the air supply passage and the suction port
Aspirate and mix each and refrigerate through the outlet
Refrigerating room fan discharged into the room and from freezing room to refrigerated room
An air passage through which air is supplied and above the refrigerator compartment fan
When the temperature of the refrigerator compartment is low,
When the passage is closed and the temperature of the refrigerator room rises, the air passage is closed.
Open damper thermo, damper thermo and refrigerator fan
Is provided in the air passage between
And a blocking wall.

A second structural feature of the present invention is that
The serial blocking walls and the first barrier walls, Danpasamo and cold to further
A first blocking wall and a location in the air passage between the storage chamber fan
Provided at regular intervals so as not to face the first blocking wall.
A second blocking wall that blocks a part of the air passage at
Have prepared.

[0007]

The operation and effect of the present invention constructed as described above
According to the first feature, the temperature of the refrigerator compartment is high and the damper
If the module is open, the refrigerator installed in the casing
Fan for air between the freezer compartment and the refrigerator compartment
Suction through the supply passage and suction port respectively
The mixture is discharged into the refrigerator compartment through the discharge port. Accordingly
Therefore, the air in the freezer compartment is forcibly guided to the refrigerator compartment,
The air is mixed with the air in the refrigerator and discharged into the refrigerator.
Therefore, the cooling rate of the refrigerator compartment is appropriate and the refrigerator compartment is appropriate.
Kept at temperature. In addition, the temperature of the refrigerator compartment is low,
When the refrigerator is closed, the refrigerator compartment fan
The temperature inside the refrigerator compartment evenly.
Become. On the other hand, the cut-off wall is
As it blocks some of the cold air that is drawn from
Mixed with air sucked from the refrigerator compartment by the refrigerator compartment fan
The amount of cold air from the freezer to be combined is limited,
Generation of frost due to mixing can be suppressed. further,
The barriers separate the damper thermos from the frost
Thus, adhesion of frost to the damper thermo is suppressed.

Further , according to the second aspect of the present invention having the above-described structure,
According to the feature of the first and second blocking walls are different opposite
To block the flow of cold air from the freezer at the location
Even if the space inside the casing is small, the passage of cold air
Can be bent to be substantially longer. But
The cold air flow is slowed down,
Frost formation due to mixing with air inside
At the same time, the distance between the air mixing position and the damper thermo
Longer separation allows better suppression of frost adhesion to the thermo
it can. In addition, between the first and second barriers
An air pocket is formed, and this air pocket is formed by the cold air from the freezer compartment.
Reduce the air flow rate so that the air flows from the freezer compartment to the refrigerator compartment fan.
It has a function to lengthen the time to move with. to this
Therefore, the air from the freezer room and the refrigerator room
As the temperature difference from the air becomes smaller,
Since the temperature gradient to the refrigerator compartment becomes gentle, the air
The formation of frost due to mixing can be favorably suppressed.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings.
Then, FIG. 1 shows an opening / closing door of the refrigerator according to the embodiment.
The detached state is shown by a front view, and FIG.
The storage is shown in a side sectional view. 1 and 2, reference numeral 1 denotes a refrigerator-freezer main body, and the inside of the refrigerator is divided into an upper freezer compartment 3 and a lower freezer compartment 4 by a partition wall 2.

[0010] At the top of the freezing compartment 3, the cooler 5 connecting to the refrigerating device placed outside the compartment (not shown) is disposed, the cabinet inside is covered by the cover 6, the motor cover 6
Freezer compartment fan 7 to be driven is assembled. The freezer compartment fan 7, was cooled by the cooler 5 air discharged toward the back surface below the door 1 5, is this released
Cold air around the lower portion of the freezing compartment 3, enters the cold air circulation duct 8 provided on the back portion of the freezing chamber 3, Ru back <br/> the cooler 5. Then, the freezing room 3 is cooled by repeating the circulation of the cold air . The cool air circulation duct 8
It has a central square hole 8a at its lower part,
It has a discharge duct 11 and a suction duct 13 separated by a partition plate 4a and a partition plate 14b, respectively.

[0011] cold air entering from the central square hole 8a of the lower portion of the cooling circulation duct 8, although the towards the cooler 5 by the suction force mainly freezer fan 7, the discharge duct 11
Above the suction opening 11a, the suction opening 11a
And a shunt guide 12 having a downwardly inclined portion 12a extending outside the suction opening 11a , and a portion of the cold air is guided by the shunt guide 12 so that the suction opening of the discharge duct 11 is provided. It goes around to the part 11a.
The discharge duct 11 is a casing fixed to the inner wall of the refrigerator compartment 4.
And communicates with the interior of the grayed 9, cold air wrapping around the
Is sucked by the fan 1 0 for a cold <br/> built chamber driven by a motor is assembled to the front of the casing 9, it is discharged into the refrigerating compartment 4.

[0012] As shown in FIGS. 3 to 5, the upper portion of the refrigerating compartment 4
The discharge duct 11 is provided on the inner wall through the passage 2 a of the partition wall 2.
Danpasamo mounting member 19 and, similarly chillers by a cylindrical connecting member 20 connected to the duct 13 the suction through the passage 2b of the partition wall 2 fan 1 having a rectangular tube-like cylindrical portion 19a which is connected to casing 9 supporting is supporting a 0. The casing 9 has an air passage formed therein.
Cage, refrigerator compartment fan 1 0 that have been assembled et <br/> in the center front. At the lower part of the casing 9, suction ports 9a and 9b formed by square holes for sucking the air in the refrigerator compartment 4 are provided.
Have been . The suction port 9a is opened by the refrigerator compartment fan 10.
The air in the refrigerator compartment 4 sucked into the casing 9 is
The freezing room 3 sucked by the refrigerating room fan 10
Mixed with cold air through the discharge duct 11
The liquid is discharged into the chamber 4 through the discharge port 9 e and circulates in the refrigerator compartment 4 . Air entering casing 9 from suction port 9b
Is connected to the connecting body 20 from the passage separated by the partition plate 9c,
It reaches the cooler 5 through the passage 2 b and the suction duct 13, and circulates again in the freezing room 3 or from the freezing room 3 to the refrigerating room 4.

[0013] as shown in Figure 3 to Figure 11, Danpasamo 17 supported by the Danpasamo mounting body 19 which is fixed to the partition member 2 is pinched by the piece 18b after heat insulator before piece 18a and the heat insulating member, It is stored and fixed in the storage space formed by both without using any other fixing means. As shown in FIG. 5, Danpasamo 17 have a damper 17a and the temperature sensitive portion 17b. Temperature sensing part 17b is a refrigerator room
4 and the temperature of the refrigerator compartment 4 is set to the damper 17a.
Tell The temperature in the refrigerator compartment 4 is a predetermined temperature.
When it is lower, the discharge port 19b of the damper thermo mounting body 19 is
When the temperature of the refrigerator compartment 4 is higher than a predetermined temperature, the discharge port 1 is closed.
Open 9b. In this way, the damper thermo 17 is moved to the refrigerator compartment 4.
Because it is arranged in the casing 9 fixed to the inner wall of the
The distance between the portion 17b and the damper 17a can be reduced.

[0014] casing 9 is divided into a being in full Anmota chamber and Danpasamo chamber delimited by partition walls 9d, Danpasamo chamber has a slightly only narrow as they become forward only slightly forward in the same manner in this chamber The narrow heat insulator 18 is fitted. The heat insulator 18 is the front piece 1
Together they are composed of a 8a and after pieces 18b, joint surfaces
Joined at 18c and built into the damper thermo room
To form an air passage from the freezer compartment 3
I have. Inside the heat insulator front piece 18a and the heat insulator rear piece 18b
Is formed with various irregularities, and is different from the damper thermo 17.
The air passage between the picture wall 9d and the hole 9d1 is formed by the unevenness.
The first and second blocking walls 18g, 1 are separated by a predetermined distance.
8h are formed. The barriers 18g and 18h are each
Part of the cold air from the freezer 3 at different opposite positions
In the area where they do not face each other.
While forming small passages 18e and 18f,
An air reservoir 18d is formed between them.

Therefore, in assembling, the heat insulator front piece 18
a, if the damper thermos 17 supported by the mounting body 19 and the heat insulator rear piece 18b are inserted in this order into the damper thermo chamber of the support duct 9, these can be assembled without requiring any fixing means, and , The task is very easy . Also, before the insulation 18, after pieces 18a, 18b has been integrally molded respectively, it could be very cost reduction. Name your, before air reservoir 18d, after pieces 18a,
Since were formed using a 18b, the volume size Kusuru
be able to.

In the embodiment configured as described above,
When the temperature of the refrigerator compartment 4 rises, the damper thermometer 17a is automatically turned on.
Discharge port 19b of damper thermo mounting body 19 which operates dynamically
Is opened, so that the refrigerator compartment fan 10
At the same time as sucking the air inside the refrigerator compartment 4,
The two airs are mixed and discharged into the refrigerator compartment 4 to cool the refrigerator compartment 4.
Reject. On the other hand, the temperature in the refrigerator compartment 4 decreases due to the cooling.
Then, the damper thermo 17a automatically operates and the damper
Since the outlet 19b of the thermomount 19 is closed,
The cold air in 3 is not supplied to the refrigerator 4
Air 4 is circulated by the action of the refrigerated compartment fan 10
Only. As a result, the temperature in the refrigerator compartment 4 becomes the desired temperature.
Is maintained.

As can be understood from the above description,
According to the embodiment, the refrigerator compartment 4 is cooled by the cold air in the freezer compartment 3.
When cooling, the cold air is supplied to the refrigerator compartment fan 10.
Was forcibly sucked and was forcibly sucked
The cold air is mixed with the air in the refrigerator compartment 4 and enters the refrigerator compartment 4.
Since it is discharged, the cooling function for the refrigerator compartment 4 is appropriate.
Thus, the refrigerator compartment 4 is maintained at an appropriate temperature. In addition, the refrigerator compartment
Fan 10 also stirs the air in refrigerator compartment 4
Thus, the temperature in the refrigerator compartment 4 becomes uniform. Meanwhile, the blocking wall 18
g and 18h are sucked from the freezer compartment 3 by the refrigerator compartment fan 10.
While blocking a part of the flow of cold air drawn,
Bending the cold air passages to be substantially longer
So the air from the freezer compartment 3 is mixed with the air from the refrigerator compartment 4
The amount of cold air is limited, reducing the formation of frost associated with the mixing
Can be suppressed. Furthermore, blocking walls 18g, 18h
Is to isolate the damper thermo 17 and the frost mixing point
Thus, the adhesion of frost to the damper thermo 17 is suppressed.
Further , an air reservoir formed between the blocking walls 18g and 18h.
18d lowers the flow rate of cold air from the freezing room 3 and
Because the air moves from the freezer compartment 3 to the refrigerator compartment fan 10
It also serves to extend the time of
The temperature difference between the air from the freezer compartment 3 and the air from the refrigerator compartment 4 is
As it becomes smaller, the temperature from the freezer compartment 3 to the refrigerator compartment 4
The gradient becomes gentler, which reduces the formation of frost due to the mixing of the air.
It can be suppressed well.

[Brief description of the drawings]

It is a front view of a state in which removed the door of refrigerator-freezer showing the Kazumi施例of the present invention; FIG.

FIG. 2 is a side cross-sectional view of the cold freezing refrigerator.

FIG. 3 is a sectional view taken along the line AA in FIG. 1;

FIG. 4 is a cross-sectional view along the line BB in FIG. 3;

FIG. 5 is a sectional view taken along the line CC of FIG. 4;

FIG. 6 is a front view of the heat insulator front piece of FIG. 4;

7 is a plan view of the ditto Netsutai front piece.

FIG. 8 is a sectional view taken along the line DD in FIG. 6 ;

FIG. 9 is a front view of a rear piece of the heat insulator of FIG. 3;

10 is a plan view of the ditto heat body after piece.

11 is a side view of the ditto heat body after piece.

[Explanation of symbols]

1 ... body, 2 ... partition wall, 2a, 2b ... passage, 3 ... Frozen
Chamber, 4 ... refrigerated chamber, 5 ... cooler, 6 ... cover, 7 ... cold Koshitsu
Use fans, 8 ... cold air circulation duct, 8a ... central square hole, 9 ...
Casing, 9a, 9b ... suction port, 9e ... discharge port, 10
... refrigerated compartment fan, 11 ... discharge duct, 11a ... suction opening, 12 ... shunt guide, 13 ... suction duct, 1 5,
16 ... door, 17 ... damper thermo , 17a ... damper,
17b ... temperature sensing part , 18 ... heat insulator, 18a ... heat insulator front piece,
18b ... insulation after piece, 1 8d ... air reservoir, 18e, 18f
... passageway, 18g, 18h ... blocking wall, 19 ... damper thermo mounting body , 19b ... discharge port , 20 ... connecting body .

Claims (2)

(57) [Claims] 1. The interior of the refrigerator is divided into a freezer compartment and a refrigerator compartment by a partition wall.
A cooling device and a freezing room fan are provided on the freezing room side.
The air cooled by the cooler is cooled by the freezer fan.
And circulated through the freezer compartment, and the
Air supply through which air is supplied from the freezer to the refrigerator
Return air for returning air in the refrigerator compartment to the freezer compartment side
To circulate the air in the freezer compartment into the refrigerator compartment.
In the freezer refrigerator, the air supply passage is fixed to the inner wall surface on the side of the refrigerator compartment,
And communicates with the freezing room through a passage.
A casing having a suction port and a discharge port directed to the air;
The air in the refrigerator compartment and the air supply passage and the suction port
Through the discharge port
A fan for the refrigerating compartment discharged into the refrigerating compartment through the air passage, and an air passage through which air is supplied from the freezing compartment to the refrigerating compartment.
And is installed upstream of the refrigerator compartment fan.
When the temperature of the refrigerator compartment is low, the air passage is closed and the refrigerator is cooled.
A damper thermostat that opens the air passage when the temperature of the storage room rises
And air communication between the damper thermostat and the refrigerator compartment fan.
And a blocking wall provided on the road to block a part of the air passage.
Refrigerator, characterized in that it includes. 2. The compartment is divided into a freezer compartment and a refrigerator compartment by a partition wall.
A cooling device and a freezing room fan are provided on the freezing room side.
The air cooled by the cooler is cooled by the freezer fan.
And circulated through the freezer compartment, and the
Air supply through which air is supplied from the freezer to the refrigerator
Return air for returning air in the refrigerator compartment to the freezer compartment side
To circulate the air in the freezer compartment into the refrigerator compartment.
In the freezer refrigerator, the air supply passage is fixed to the inner wall surface on the side of the refrigerator compartment,
And communicates with the freezing room through a passage.
A casing having a suction port and a discharge port directed, assembled to the casing the freezing chamber air and before
The air in the refrigerator compartment and the air supply passage and the suction port
Through the discharge port
A fan for the refrigerating compartment discharged into the refrigerating compartment through the air passage, and an air passage through which air is supplied from the freezing compartment to the refrigerating compartment.
And is installed upstream of the refrigerator compartment fan.
When the temperature of the refrigerator compartment is low, the air passage is closed and the refrigerator is cooled.
A damper thermostat that opens the air passage when the temperature of the storage room rises
And air communication between the damper thermostat and the refrigerator compartment fan.
A first shutoff provided in a road to shut off a part of the air passage
Front between the wall and the damper thermos and the refrigerator compartment fan
The air passage is provided at a predetermined distance from the first blocking wall.
Airflow at a position that is not opposed to the first blocking wall
And a second blocking wall that blocks a part of the road.
And refrigerator-freezer.