JP2002277142A - Refrigerator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a refrigerator having an ability for cooling a plurality of storage chambers by one cooler without increasing the coolers. SOLUTION: The cooler 15 provided in a cooler chamber is divided into right and left parts. A partition means 15a is provided between the divided right and left parts. Cold air produced by the one cooler 15' divided by the partition means 15a is supplied to the storage chamber 8 from a first air supply passage 24a through a cold air supply passage by a first fan. Cold air produced by the divided other cooler 15" is supplied to a refrigerating chamber 9 from a second air supply passage 24b through a cold air supply passage by a second fan.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a refrigerator, and more particularly, to a structure around a cooler for forcibly circulating cool air.

[0002]

2. Description of the Related Art As shown in FIG. 4, for example, a conventional electric refrigerator has an outer box 2 made of a steel plate and an inner box 3 made of a synthetic resin.
(Also referred to as a heat-insulating box) comprising a foam heat-insulating material 4 and two heat-insulating partition members 5 inside thereof (inner box 3).
6, a compartment is formed into an upper refrigerator compartment 7, a central vegetable compartment 8, and a lower freezer compartment 9.
1 and 12 are provided.

On the back of the vegetable compartment 8 and the freezing compartment 9, a circular cold air outlet 14a is provided at the center of the upper part, and a partition plate 14 provided with a rectangular cool air return port at the substantially center of the lower part is erected. The cooler room 13 is partitioned, and a cooler 15 including a large number of fins and heat transfer tubes orthogonal thereto is provided in the cooler room 13.
And a blower 16 for sending out the cool air generated by the cooler 15 to the inside of the refrigerator.
The return cold air sent out and circulated in the refrigerator was circulated to the cooler 15.

Further, the blower 16 for forced air circulation is provided above the cooler 15, a defrost heater 17 is provided below the cooler 15, and a drain gutter 18 is provided below the cooler chamber 13. The cooler 1 flowing down to the drain gutter 18
The defrost water 5 flows through a drain pipe 19 into an evaporating dish 22 in a machine room 21 in which a compressor 20 and the like are arranged, and is evaporated.

A heat insulating wall 23 for the vegetable compartment 8 is provided in front of the upper part of the partition plate 14, and the heat insulating wall 23 and the partition plate 1 are provided.
The upper part of the air passage 24 formed between the refrigeration room 7
The lower portion communicates with the cool air supply passage 25 at the back, and the lower portion communicates with the cool air supply passage 26 having the cool air outlets 26a and 26b at the back of the freezing compartment 9 and is supplied to the refrigerator compartment 7 via the cool air supply passage 25. Cool air is supplied to the vegetable compartment 8 from a cool air supply hole 5a formed in front of the heat insulating partition 5, and returned cool air returns to a lower rear portion of the cooler room 13 via a cool air return duct 27 shown by a broken line. On the other hand, the cold air outlet 26
The cool air supplied to the freezing compartment 9 from the a and 26b is returned to the lower part of the cooler room 13 through a cool air return duct 28 communicating with the cool air return port 14b formed in the partition plate 14. I have.

However, in recent refrigerators, the refrigerator in which the freezing compartment 9 is disposed below is the mainstream, and in order to further improve the cooling effect, a plurality of coolers dedicated to a plurality of storage compartments are provided. Although some efforts have been made, the number of parts and the number of assembling steps are increased, and there is a problem that the internal volume of the refrigerator may be reduced.

[0007]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a refrigerator having the ability to cool a plurality of storage rooms with one cooler without increasing the number of coolers. And

[0008]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention divides the inside of a heat insulating box, which is filled with a heat insulating material between an outer box and an inner box, into upper and lower sections by a heat insulating partition. A storage compartment, and a freezer compartment is provided, a cooler compartment is defined by a back surface of the storage compartment, a back surface of the freezer compartment, and a rear end of the heat insulating partition, and a cooler that generates cool air in the cooler compartment. Provided, an air passage for supplying the cool air generated by the cooler into the refrigerator,
An electric refrigerator provided with a blower to be sent out from the blower passage into the refrigerator, returning the return cool air sent out by the blower and circulating through the cooler supply passage through the cooler, returned to the lower part of the cooler by a cool air return duct, A cooler is divided in the left-right direction, a partition is provided between the coolers divided into right and left, and the cool air generated by one of the coolers divided by the same partition is first cooled from the first air passage. The cooler is supplied to the storage chamber through a cool air supply path by a blower, and the cool air generated by the other of the divided coolers is supplied from the second blower to the freezing chamber through the cool air supply path by the second blower. Is supplied.

The second air passage has a structure in which a guide portion for guiding the cool air facing the cooler corresponding to the second air passage is formed at a rear portion of the heat insulating partition. .

[0010] A blower is provided in which the partitioning device in which the cooler is divided into right and left and a convex guide portion at the rear of the heat insulating partition are integrally formed.

The cool air supply path for supplying cool air is formed between the lower part of the heat insulating partition and the freezing compartment.

The arrangement of the blower is such that the axis of the blower is inclined in the direction of sending cool air.

[0013] A temperature detecting device is attached to the upper end of the cooler.

A storage room and a freezing room are provided by vertically partitioning the interior of a heat insulating box formed by filling a heat insulating material between the outer box and the inner box with a heat insulating partition. A cooler compartment is defined by the rear surface of the freezer compartment and the rear end of the heat insulating partition, and a cooler for generating cool air is provided in the cooler compartment, and an air passage for supplying the cool air generated by the cooler into the refrigerator is provided. Provided,
A blower is provided from the blower to the inside of the refrigerator.The return cool air sent from the blower and circulated through the cooler supply passage is returned to a lower part of the cooler by a cool air return duct, and the cooler is moved in the left-right direction. And a partition is provided between the coolers divided into right and left, and the cool air generated by one of the coolers divided by the same partition is supplied from the first blower to the cool air supply by the first blower. Supplying the cold air generated by the other of the divided coolers from the second blower to the freezer through a cool air supply path by a second blower, In a method for controlling a refrigerator using a temperature detection device attached to a cooler, the temperature detection device controls each of the blowers for sending out the cool air.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The embodiments of the present invention will be described below as examples based on the attached drawings. FIG. 1 is a side sectional view (A) of a refrigerator showing a mode of a first embodiment according to the present invention, and an enlarged side sectional view (B) of a main part showing a cooler room, and FIG. FIG. 3 is a front view (A) showing the relationship between the heat insulating partition and the cooler according to one embodiment, and a view (A) as viewed from the arrow (B) and a view (B) as viewed from the arrow (C) shown in FIG. FIG. 3A is a side sectional view of a refrigerator according to a second embodiment of the present invention, and FIG. Note that the same reference numerals are used for the same parts as in the related art.

FIG. 1 is a side view showing an internal structure of a refrigerator of a forced air circulation type, and FIG. 2 is a view showing a relationship between a heat insulating partition and a cooler. 2, a refrigerator main body (also referred to as a heat insulation box) composed of an inner box 3 made of synthetic resin, and a foamed heat insulating material 4. The inside (the inner box 3) of the refrigerator body is formed by two heat insulating partitions 5 and 6, The refrigerator compartment 7, the central vegetable compartment 8, and the lower freezer compartment 9 are partitioned and provided with doors 10, 11, and 12, respectively.

Reference numeral 13 denotes a partition plate 14 on the back of the vegetable compartment 8 and a partition plate 14 'on the back of the freezing compartment 9, and a rear end of the heat insulating partition 6 between the partition plate 14 and the partition plate 14'. The divided cooler room 15 is provided in the cooler room 13 and is divided in the left-right direction.
This is a cooler comprising a large number of fins provided with 5a and heat transfer tubes perpendicular to the fins. In addition, the side which supplies the cold air produced | generated while being divided into right and left by the partitioning tool 15a of the cooler 15 into the refrigerator compartment 7 and the vegetable compartment 8 is made into the cooler part 15 ', and the other side was produced. Cool air into the freezer 9
The side to be supplied into the refrigerator is referred to as a cooler unit 15 ″.

A cooling unit 1 is provided above the cooling unit 1.
The cold air generated in 5 ′ is supplied to the refrigerator compartment 7 and the vegetable compartment 8
An air blower 16 ′ to be delivered into the refrigerator is provided in front of the partition plate 14 ′ between the back surface of the freezer compartment 9 and the cooler 15, and cools the cold air generated by the cooler unit 15 ″. Blowers to be sent out into the chamber 9 and 27, 28 are cool air return ducts for circulating the returned cool air sent out by the blowers 16, 16 'and circulated in the chamber to the cooler 15.

A defrost heater 17 is provided below the cooler chamber 13, and a drain gutter 18 is provided below the defrost heater 17. The defrost water flows through a drain pipe 19 into an evaporating dish 22 in a machine room 21 in which a compressor 20 and the like are arranged, and evaporates.

In addition, at the rear of the heat insulating partition body 6 on the side of the cooler section 15 "for supplying cool air to the freezing compartment 9, a guide section for guiding the convex cool air facing the cooler section 15". 6
b, and a blower 6a formed integrally with the partitioning tool 15a, which divides the cooler 15 into right and left, and a convex guide portion 6b at the rear of the heat-insulating partition, is provided in the cooler chamber 13. By arranging, the air passages 24 corresponding to the coolers 15 ′ and 15 ″ divided into right and left, respectively.
The air passage 24 composed of a and 24b can be configured.

At the front of the partition plate 14, a heat insulating wall 23 for the vegetable compartment 8 is provided, and a first air passage 24a is formed between the partition plate 14 and the inner box 3. Ventilation path 24a
Communicates with the cool air supply passage 25 behind the refrigerating chamber 7, and cools the cool air generated by the cooler unit 15 ′ from the first blower passage 24 a through the first blower 16 to the cool air supply passage 25.
The cold air is supplied to the upper refrigerator compartment 7 through the cold air supply hole 5 a formed in front of the heat insulating partition 5.
Is supplied to the vegetable compartment 8 and the returned cool air from the vegetable compartment 8 is returned to the lower part of the cooler 15 via a first cool air return duct 27 shown by a broken line.

On the other hand, a second air passage 24b formed by the air blower 6a is provided on the side of the cooler section 15 "and
It is constituted by the front of the partition plate 14 ',
Cold air supply path 2 having cold air outlets 26a, 26b on the back
6 and communicates the cool air generated by the cooler unit 15 ″ to the second blower 1 through the second blower passage 24b.
6 ′, cool air is supplied from the cold air outlets 26a, 26b to the freezer compartment 9 via the cool air supply passage 26, and between the lower part of the heat insulating partition 6 and the freezer compartment 9,
By forming the cool air supply passage 26 'for supplying cool air, the efficiency of cool air supply to the freezing compartment 9 is improved. In addition, the return cold air from the freezing room is
The cooler 15 is returned to the lower part of the cooler 15 via a second cool air return duct 28 communicating with a cool air return port 14'a formed in 4 '.

As described above, the cooler 15 is divided in the left-right direction by the partitioning tool 15a, and after exchanging heat with the cooler 15, a two-system cool air circuit for sending out the cooled cool air is formed. This eliminates the need to provide a plurality of coolers dedicated to a plurality of storage rooms, increases the number of parts and the number of assembling steps, and can eliminate problems such as a possibility of reducing the internal volume of the refrigerator.

The refrigerator compartment 7 and the vegetable compartment 8
And the cooler 15 used separately for the two systems of the freezing room 9
In addition, a temperature detection sensor 29 for the refrigerator compartment 7 and the vegetable compartment 8 and a temperature detection sensor 30 for the freezer compartment 9 are attached to the upper end of the cooler 15, respectively.
According to 9 and 30, the blowers 16 and 16 'for sending the cool air are provided.
Are controlled to improve cooling efficiency and save energy.

FIG. 3 shows a second embodiment according to the present invention, in which the refrigerator compartment 7, the vegetable compartment 8, and the freezer compartment 9 are provided.
Cold air is sent to the two systems of the cold air circuit for forcibly circulating cold air through the cool air sending blower 16 for the refrigerating room 7 and the vegetable room 8 and the cool air sending blower 16 ′ for the freezing room 9. Since the axes of the blowers 16 and 16 'are arranged at an angle in the direction, a smoother flow of cold air can be obtained, and the cooling capacity can be increased.

With the above configuration, by forming a two-system cooling air circuit, there is no need to provide a plurality of coolers, the number of parts and the number of assembling steps are reduced, and there is no danger of reducing the internal volume of the refrigerator. .

[0027]

As described above, according to the present invention, a refrigerator having the ability to cool a plurality of storage rooms with one cooler without increasing the number of coolers is provided.

[Brief description of the drawings]

FIG. 1A is a side sectional view of a refrigerator showing a first embodiment according to the present invention, and FIG. 1B is an enlarged side sectional view of a main part showing a cooler chamber.

FIG. 2 is a front view (A) showing the relationship between the heat insulating partition and the cooler according to the first embodiment of the present invention, and is a view (A) as viewed from the arrow (B) and a view as viewed from the arrow (B) (C). It is.

3A is a side sectional view of a refrigerator showing a second embodiment of the present invention, and FIG. 3B is an enlarged side sectional view of a main part showing a cooler chamber.

FIG. 4 is a side sectional view of a refrigerator showing a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Refrigerator main body (heat insulation box) 2 Outer box 3 Inner box 4 Foam insulation material 5 Insulation partition 5a Cold air supply hole 6 Insulation partition 6a Blower 6b Guide part 7 Refrigerator room 8 Vegetable room 9 Freezer room 10 Door 11 Door 12 Door 13 Cooler room 14 Partition plate 14a Cold air outlet 14b Cold air return 14 'Partition plate 14'a Cool air return 15 Cooler 15' Cooler part 15 "Cooler part 15a Partition tool 16 Blower 16 'Blower 17 Defrost Heater 18 Drain gutter 19 Drain pipe 20 Compressor 21 Machine room 22 Evaporating dish 23 Insulated wall 24 Ventilation path 24a Ventilation path 24b Ventilation path 25 Cold air supply path 26 Cold air supply path 26 'Cold air supply path 26a Cold air outlet 26b Cold air outlet 27 Cold air return duct 28 Cold air return duct 29 Temperature detection sensor 30 Temperature detection sensor

Claims (7)

[Claims] 1. A storage room and a freezer room are provided by vertically partitioning the inside of a heat insulating box formed by filling a heat insulating material between an outer case and an inner case, and a freezing room. And a cooler compartment defined by a back surface of the freezing compartment and a rear end of the heat insulating partition, a cooler for generating cool air in the cooler compartment, and a blower for supplying the cool air generated by the cooler into the refrigerator. Establish a road,
An electric refrigerator provided with a blower for sending out the inside of the refrigerator from the blower passage, and returning cool air sent out by the blower and circulating through the cooler supply passage through the cooler, and returned to a lower part of the cooler by a cool air return duct, A cooler is divided in the left-right direction, a partition is provided between the coolers divided into right and left, and the cool air generated by one of the coolers divided by the same partition is first cooled from the first air passage. The cooler is supplied to the storage chamber through a cool air supply path by a blower, and the cool air generated by the other of the divided coolers is supplied from the second blower to the freezing chamber through the cool air supply path by the second blower. Refrigerator. 2. The heat transfer device according to claim 2, wherein the second air passage is formed at a rear portion of the heat-insulating partition body with a guide portion for guiding a convex cool air facing the cooler corresponding to the second air passage. The refrigerator according to claim 1, wherein: 3. An air blower in which the partitioning device in which the cooler is divided into right and left and a convex guide portion at a rear portion of the heat insulating partition are integrally formed.
The refrigerator as described. 4. The refrigerator according to claim 1, wherein the cool air supply path for supplying cool air is formed between a lower portion of the heat insulating partition and the freezing compartment. 5. The refrigerator according to claim 1, wherein the fan is arranged such that an axis of the fan is inclined in a direction in which cool air is sent. 6. The cooling device according to claim 1, further comprising a temperature detecting device attached to an upper end of the cooling device.
The refrigerator as described. 7. A storage room and a freezer room are provided by vertically partitioning the interior of a heat insulating box body filled with a heat insulating material between an outer case and an inner case by a heat insulating partition, and a back surface of the storage room. And a cooler compartment defined by a back surface of the freezer compartment and a rear end of the heat insulating partition, a cooler for generating cool air in the cooler compartment, and a blower for supplying the cool air generated by the cooler into the refrigerator. Establish a road,
A blower is provided from the blower to the inside of the refrigerator, and the returned cool air sent by the blower and circulated through the cooler supply passage is returned to a lower portion of the cooler by a cool air return duct, and the cooler is moved in the left-right direction. And a partition is provided between the coolers divided into right and left, and the cool air generated by one of the coolers divided by the same partition is supplied from the first blower to the cool air supply by the first blower. Supplying the cold air generated by the other of the divided coolers from the second blower to the freezer through a cool air supply path by a second blower, A method for controlling a refrigerator using a temperature detection device attached to a cooler, wherein the temperature detection device controls each of the blowers for sending cool air.