JP3399880B2 - refrigerator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve storage quality of food and to contrive an energy conservation by enhancing housing properties and an internal volume efficiency of an area having good handling operability of a central portion in a mounting constitution of a cooling functional component. SOLUTION: A cold storage chamber 44 and a vegetable chamber 45 are formed in an upper portion of a heat insulation wall 43. A deep freezing chamber 46 is formed in a lower portion. A compressor 57 and a first cooler 58 are juxtaposed in left and right directions at a rear side of the chamber 46. A blower 59 is disposed at an upper portion of the cooler 48, and an electronic control board 78 is disposed at a rear side of the cooler 58. A second cooler 6 and a second blower 66 are provided at an upper rear side of the chamber 44. Thus, the chambers 46, 44 and 45 are independently cooled at necessary sufficient cold air temperature to suppress supercooling of a storage article and to enhance a cooling efficiency. Cooling functional components are concentrated in a lower portion to improve a mounting efficiency, and housing properties are improved owing to an increase in a depth of the chamber 45.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an arrangement of cooling function parts in a refrigerator.

[0002]

2. Description of the Related Art In recent years, there is an increasing need for larger capacity refrigerators. On the other hand, due to the housing situation, there is a restriction on the installation space for larger refrigerators, and in order to achieve a large capacity, review the invalid space and low practical space in the refrigerator body and reduce volume efficiency by reducing these. It is required to increase the effective internal volume without increasing the installation space.

There are various approaches for increasing the volumetric efficiency, but there is a method of directly increasing the internal volume of the refrigerator by improving the heat insulation performance of the heat insulating material of the refrigerator body, a refrigeration cycle for cooling the inside of the refrigerator, A typical method is to reduce the occupied volume of the structure, which is indispensable for the storage space in the refrigerator, such as blower, damper device, cooling function parts such as cooling air passage, and electronic control board, which are indispensable. It is considered to be an initiative.

Of these, the former is largely due to the technical development of the heat insulating material itself, and therefore, ingenuity in terms of application to the refrigerator has been mainly made to increase the cooling function of the latter and the mounting efficiency of control parts.

A conventional refrigerator of this type is disclosed in Japanese Unexamined Patent Publication No.
There is one disclosed in Japanese Patent Publication No. 338681.

The conventional refrigerator will be described below with reference to the drawings.

FIG. 7 is a front view of a conventional refrigerator. FIG. 8 is a sectional view of the refrigerator. 7 and 8, 1
Is a refrigerator main body, and 2 is a heat insulating wall having a rising portion 2a provided at the rear side that divides the inside of the refrigerator main body 1 into upper and lower parts. Three
Is a refrigerator compartment, 4 is a vegetable compartment provided at the bottom of the refrigerator compartment 3,
All are partitioned and formed above the heat insulation wall 2. Reference numeral 5 is an upper freezing compartment, and 6 is a lower freezing compartment, both of which are sectioned below the heat insulating wall 2. Further, 7 is a compartment which is provided in the lower part of the refrigerating compartment 3 and whose temperature is controlled to be lower than that of the refrigerating compartment.

Reference numeral 8 is a rotary door provided at the front opening of the refrigerating compartment 3, and 9, 10 and 11 are drawers provided at the front opening of the vegetable compartment 4, the upper freezing compartment 5 and the lower freezing compartment 6, respectively. It is a ceremony door. Further, reference numerals 12, 13, and 14 denote storage containers that are provided integrally with the drawer-type doors 9, 10, and 11 and are drawn out, and 15 denotes a storage container provided in the compartment 7. Reference numeral 16 is a shelf provided so as to divide the inside of the refrigerator compartment 3 into a plurality of storage compartments.

Reference numeral 17 denotes a machine room formed from the lower part of the refrigerator main body 1 to the lower rear part thereof, 18 is a compressor of a refrigeration cycle installed in the machine room 17 and behind the lower freezing room 6, and 19 is a machine. It is a condenser installed in the chamber 17 and below the lower freezing chamber 6. Reference numeral 20 denotes an evaporation dish provided in the space near the condenser 19 for evaporating defrost water. Reference numeral 21 denotes a refrigerating cycle cooler provided inside the upper freezer compartment 5 at the rear of the inside thereof, and is arranged vertically above the compressor 18.
Further, 22 is a blower for forced ventilation provided in the upper part of the cooler 20, and is arranged at the rear of the vegetable compartment 4 so as to face the rising portion 2a of the heat insulating wall.

Reference numeral 23 denotes an air passage control panel provided at the rear of the vegetable compartment 4 and the compartment 7, and a damper device 24 for adjusting the amount of cold air supplied to the refrigerator compartment 3 and the vegetable compartment 4 to the compartment 7. It has a built-in damper device 25 for adjusting the cold air supply amount and an electronic control board 26 for controlling the operation of electric components such as the compressor 18, the blower 22, and the damper devices 24, 25.

Reference numeral 27 denotes a first cool air discharge air passage for sending cool air from the blower 22 to the refrigerating compartment 3 via the damper device 24, which is provided in the central portion of the refrigerating compartment 3 in the up-down direction and is located in the storage compartment between the shelves 16. A plurality of cold air discharge ports 28 are provided so as to face each other. Reference numeral 29 denotes a second cool air discharge air passage for sending cool air to the compartment 7 via the damper device 24, and a cool air discharge port 30 is opened in the inner surface of the compartment 7.

Reference numeral 31 is a cold air intake air passage for returning cold air from the vegetable compartment 4 to the cooler 21, and a cold air inlet 32 is opened in the inner surface of the vegetable compartment 4. Further, the cold air discharged into the refrigerating compartment 3 and the compartment 7 is circulated to the cold air inlet 32 from the communication port 33 provided in the lower part of the inner surface of the compartment 7 through the outer periphery of the container 12 of the vegetable compartment. It is configured.

Reference numeral 34 denotes a cool air discharge port for discharging cool air from the blower 22 to the upper freezing chamber 5 and the lower freezing chamber 6, and the rising portion 2a of the heat insulating wall faces the front surface thereof and guides the cool air downward. . Reference numeral 35 is a cool air suction port for returning cool air to the lower part of the cooler 21.

Reference numeral 36 denotes a temperature detector provided on the inner surface of the upper freezing compartment 5 for detecting the temperature of the freezing compartment, 37 denotes a temperature detector provided on the inner surface of the refrigerating compartment 3 for detecting the temperature of the refrigerating compartment, and 38 denotes a compartment. 7 is a temperature detector which is provided on the inner surface of 7 to detect the temperature inside the compartment.

Further, 39 is a defrost heater provided near the lower part of the cooler 21, 40 is a defrost water receiving tray for receiving defrost water, 41 is a drain pipe, and the drain pipe 41 is a defrost water receiving tray 4
0 and the evaporating dish 20 communicate with each other.

Regarding the refrigerator constructed as described above,
The operation will be described below.

First, when the temperature detected by the temperature detector 36 is higher than the set value, the compressor 18 is operated, the cool air cooled by the cooler 21 is forcedly ventilated by the blower 22, and the cool air discharge port 34 in the freezer compartment. After being discharged from the upper freezing chamber 5 and the lower freezing chamber 6, the cold air is returned to the cooler 21 from the cold air suction port 35. When the temperature detected by the temperature detector 36 becomes lower than the set value, the compressor 18 is stopped, and thereafter this operation is repeated to cool the room to a freezing temperature such as -18 ° C.

Next, when the temperature detected by the temperature detectors 36 and 37 is higher than the set value, the damper device 24 is opened and the cool air cooled by the cooler 21 is forcedly ventilated by the blower 22 to discharge the first cool air. The air is discharged from the cool air discharge port 28 into the refrigerating chamber 3 through the air passage 27. Then, the cold air that has cooled the refrigerating chamber 3 flows into the upper surface of the vegetable chamber 4 through the communication port 33, indirectly cools the vegetable chamber from the outer periphery of the storage container 12, and cools the cold air suction port 32 through the cool air suction air passage 31. Returned to 21. Then, after that, when the temperature detected by the temperature detector 37 becomes lower than the set value, the damper device 24 is closed, and thereafter, this operation is repeated to refrigerate the refrigerating compartment 3 at 4 ° C. and the vegetable compartment 4 at 6 ° C., for example. Cool to temperature.

When the temperature detected by the temperature detectors 36, 38 is higher than the set value, the damper device 25 is opened and the cool air cooled by the cooler 21 is forcedly ventilated by the blower 22 to discharge the second cool air. It is discharged into the compartment 7 from the cool air discharge port 30 through the passage 29. Then, the cool air that has cooled the compartment 7 flows into the upper surface of the vegetable compartment 4 from the communication port 33, indirectly cools the vegetable compartment from the outer periphery of the storage container 12, and cools the cool air suction port 32 through the cool air suction air passage 31. Returned to 21. Then, when the temperature detected by the temperature detector 38 becomes lower than the set value thereafter, the damper device 25 is closed, and thereafter, this operation is repeated and the interior of the compartment 7 is temperature zone such as 0 ° C. chilled or −3 ° C. partial freezing. Cool to.

On the other hand, from the viewpoint of the cooling function and the mounting efficiency of the control parts, the cooler 21, which is the cooling source, is different from the vegetable compartment 4, which has a high internal temperature, and the upper freezer compartment 5 has the lowest internal temperature. Since it is disposed close to the rear, the temperature drop in the vegetable compartment 4 can be reduced and the upper freezing compartment 5 and the lower freezing compartment 6 can be efficiently cooled. In particular, the upper freezer 5 and the lower freezer 6
Since the refrigerator is arranged in the lower part of the refrigerator body 1, the cooler 21 can be arranged inevitably in the lower part.
The dead space formed between 7 and the cooler 21 can be eliminated.

Furthermore, since the cooler 21 and the blower 22 and the damper devices 24 and 25 arranged above the cooler 21 can be lowered, the mounting efficiency is improved and the inside of the refrigerator can be effectively used and the refrigerator body 1 can be effectively used. The center of gravity can be lowered to improve the installation.

Further, the electronic control board 26 for controlling the electric parts is not provided on the upper part of the rear surface of the refrigerator main body 1 as in the conventional case, but is housed in the air passage control panel 23 in the central part of the refrigerator. The compressor 18, the blower 22, the damper devices 24 and 25, and the defrost heater 39, which are mainly arranged below the central portion.
There is also an advantage that the distance to electric parts such as is shortened as compared with the conventional one, and the cost for wiring and the assembling work are reduced.

[0023]

However, in the above-mentioned conventional configuration, the compressor 18 is housed in the machine room 17 which extends over the entire width behind the lower freezing room 6, so that the machine room 17 has a large width in the width direction. There is a drawback that invalid space is generated.

Further, since the cooler 21 is arranged above the compressor 18, if the height dimension of the cooler 18 is designed to have a necessary and sufficient cooling capacity, the cooler 1
The upper end surface of 8 inevitably reaches the height of the heat insulating wall 2. As a result, the blower 22 arranged near the upper portion of the cooler 18 protrudes above the upper freezer compartment 5, so that the rear end of the heat insulating wall 2 is partially raised to rise the rising portion 2.
However, there is a drawback that the structure around the blower 22 and the vegetable compartment 4 need to be adiabatically divided to form a and the structure becomes complicated and the ineffective volume increases.

Further, since the rising portion 2a of the heat insulating wall, the blower 22 and the air passage control panel 23 are arranged in the rear, the depth of the vegetable compartment 4 and the compartment 7 is violated and the storage capacity is lowered, and the height of the refrigerator is increased. There is also a drawback in that the storability of the storage portion, which is the most convenient storage operation in the central portion, is hindered.

Further, since the condenser 19 and the evaporation tray 20 are housed vertically in the machine room 17 which is the bottom of the refrigerator main body 1, a certain amount of heat is required to secure the heat dissipation capacity of the condenser 19 and the evaporation capacity of the evaporation tray. Space is needed. For this reason, there is a drawback that the space of the storage chamber is violated and the volumetric efficiency is lowered.

Further, although the electronic control board 26 is improved as compared with the conventional one arranged on the upper portion of the rear surface of the refrigerator,
Since it was still located away from the compressor 18, the defrost heater 39, etc., the effect of shortening the electrical wiring was not sufficient.

On the other hand, each of the refrigerating compartment 3, the vegetable compartment 4, the upper freezing compartment 5, the lower freezing compartment 6 and the compartment 7 is a single cooler 18.
Since it is cooled by the blower 22 and the blower 22, there is a drawback that the storage conditions of the stored foods are deteriorated due to the mutual influence of the temperature conditions in the respective usage conditions.

Further, the design of the evaporating temperature of the cooler 18 is based on the freezing room having the lowest indoor set temperature. For this reason, the design of the evaporation temperature is not optimal for each of the refrigerating room 3, the vegetable room 4, and the compartment 7, which have higher indoor set temperatures than the freezing room.

Therefore, the room is cooled by low-temperature cold air that has been heat-exchanged at an unnecessarily low evaporation temperature, which accelerates the drying of the stored food or partially supercools the temperature. There is a drawback that unevenness may occur and the storage quality of food may be affected.

Further, a desired cooling is achieved by reducing the efficiency of the refrigeration cycle due to the design of the evaporation temperature being unnecessarily low and increasing the power of the blower by forcibly ventilating all the chambers by one blower 22. There is a drawback that the power consumption for maintaining the state becomes large.

The present invention solves the above conventional problems, and a first object of the present invention is to provide a refrigerator in which the mounting efficiency of cooling function components and cooling control components is improved and the internal volume efficiency is improved.

A second object of the present invention is to provide a refrigerator having an improved storability in a convenient area located at the center of the height of the refrigerator.

A third object of the present invention is to provide a refrigerator capable of improving the storage quality of food and saving energy.

[0035]

In order to achieve this object, the present invention is provided in two or more storage chambers including the lowermost storage chamber among a plurality of storage chambers provided vertically in a refrigerator body. Further, the cooler and the compressor provided in the machine room formed at the rear of the lowermost storage room are arranged side by side in the left-right direction.

As a result, it is possible to provide a refrigerator in which the mounting efficiency of the refrigeration cycle, which is a cooling function component, is improved and the internal volume efficiency is improved. Further, the cooling efficiency and the independence of the cooling are increased, and the storage quality of food and the energy saving can be achieved.

Further, according to the present invention, a refrigerating chamber is formed in an upper part of a heat insulating wall which divides a refrigerator body into upper and lower parts, and a freezing chamber is formed in a lower part thereof. A second cooler and a second blower are provided in the compressor, and the compressor and the first cooler provided in the machine room formed in the lower rear part of the refrigerator main body are arranged side by side in the left-right direction. The cooler and the first blower are arranged rearward in the projection plane of the freezer compartment.

As a result, it is possible to provide a refrigerator having improved storability in a convenient area located at the center of the height of the refrigerator.

[0039]

[0040]

The invention according to claim 1 of the embodiment of the present invention is included a plurality of storage compartments provided vertically in the refrigerator body, among said plurality of storage chambers, the storage compartment of the bottom 2 A cooler provided in the above storage chamber, a machine room formed behind the lowermost storage room, and a compressor provided in the machine room,
A condenser and a condenser pipe provided below the lowermost storage chamber, and an evaporation dish for evaporating defrost water of a cooler provided in the two or more storage chambers, Lower the lower end surface of the provided cooler from the upper end surface of the compressor,
The compressor and the cooler provided in the lowermost storage chamber are arranged in the left-right direction so that a step portion in the height direction is formed in the machine chamber below the cooler provided in the lowermost storage chamber. Along with the arrangement, the evaporating dish is arranged directly below the cooler in the stepped portion and is heated by the condenser pipe, and the ineffective space in the width direction of the machine chamber is reduced, and the cooler is further provided. A space for installing machine room parts is also left below. Further, by heating the evaporation dish arranged at the stepped portion with the condenser pipe, evaporation of defrost water is promoted.

According to a second aspect of the present invention, in addition to the first aspect of the invention, a blower for forcibly ventilating the lowermost storage chamber is provided in the vicinity of the cooler provided in the lowermost storage chamber, The compressor, the cooler, and the blower are arranged behind the projection plane of the lowermost storage chamber, and the cooling function components are integrated to enhance the mounting efficiency.

According to a third aspect of the present invention, in the invention according to the second aspect , the blower is arranged at an upper portion of the cooler so as to be inclined obliquely upward, and an installation space in the height direction of the blower is provided. In addition to suppressing, the resistance to blow the cool air flow from the vertical cooler to the front storage chamber is reduced.

The invention according to claim 4 is the same as claim 1 or
In addition to the invention described in 2 , the electronic control board is housed in the rear of the cooler provided in the lowermost storage room, and the electric wiring is shortened and simplified by being concentrated in the vicinity of the electric parts. .

[0044]

According to a fifth aspect of the present invention, a heat insulating wall that divides the refrigerator body into upper and lower parts, a refrigerating chamber formed in the upper portion of the heat insulating wall, a freezing chamber formed in the lower portion, and a refrigerating chamber provided in the freezing chamber are provided. 1, a second cooler provided in the refrigerating chamber, and a first blower provided near the first cooler,
A second blower provided in the vicinity of the second cooler, a machine room formed in the lower rear part of the refrigerator main body, a compressor provided in the machine room, a condenser provided below the freezing room, and Condenser pipe, and an evaporation dish for evaporating defrost water of the first cooler and the second cooler, the lower end surface of the first cooler lower than the upper end surface of the compressor , The compressor and the first cooler are arranged side by side in the left-right direction so that a stepped portion in the height direction is formed in the machine chamber below the first cooler, and the evaporation tray is stepped Which is arranged directly below the cooler in the section to be heated by the condenser pipe, and the compressor, the first cooler, and the first blower are arranged rearward in the projection plane of the freezer compartment. And the first cooler and the first blower provide a freezer compartment and a second cooler. Refrigerating compartment is independently cooled with cold air temperature suitable for the respective cooling by the second blower, without being temperature effect of mutual, increasing cooling efficiency. Moreover, the cooling function parts of the freezer compartment do not invade the refrigerator compartment area. Further, the ineffective space in the width direction of the machine room is reduced, and moreover, the installation space for the machine room parts is left below the cooler. Further, by heating the evaporation dish arranged at the stepped portion with the condenser pipe, evaporation of defrost water is promoted.

According to a sixth aspect of the present invention, in the invention according to the fifth aspect , the second cooler is arranged in the upper portion of the refrigerating chamber, and the cooling function parts are provided from the convenient central region. It will be eliminated and the storage space will increase to the depth of the cabinet.

The invention according to claim 7 is the invention according to claim 5 or
In the invention described in 6 , the refrigerating compartment and the vegetable compartment provided with independent doors are provided above and below the heat insulating wall, and are configured to be cooled by the second cooler. The cooling function component is removed from the partial area to deepen the depth, thereby forming a vegetable compartment that can secure the capacity even if the height is low.

The invention described in claim 8 is the invention according to claims 5 to 7.
The invention according to any one of the above, further, in the lower part of the heat insulating wall, a multipurpose room with an independent door and a freezing room are provided up and down, and a damper device for adjusting the amount of cold air to the multipurpose room is provided. A first cooler is configured to cool the freezer compartment and the multipurpose compartment, and a compressor, a first cooler, and a first cooler
The blower and the damper device are arranged rearward in the projection plane of the freezing room, and the cooling function parts are removed from the inner region of the multipurpose room to deepen the depth and secure the capacity. Further, the multipurpose chamber is arbitrarily set to a temperature range from freezing to refrigeration by the cold air amount adjusting action of the damper device.

According to a ninth aspect of the present invention, in the invention according to the eighth aspect , the first blower is arranged above the cooler and the damper device is arranged above the compressor. The blower and the damper device are arranged side by side in the left-right direction, and are compactly stored behind the freezer compartment.

According to a tenth aspect of the invention, in addition to the eighth aspect of the invention, an ice making chamber having an independent door is provided below the heat insulating wall in parallel with the multipurpose chamber, and the first cooler is provided. Thus, the ice making chamber is configured to be cooled, and since there is no cooling function component in the inner region of the ice making chamber, the depth becomes deep and the ice storage amount increases.

[0051]

Embodiments of the refrigerator according to the present invention will be described below with reference to the drawings.

Example 1 FIG. 1 is a front view of a refrigerator according to Example 1 of the present invention. FIG. 2 is a vertical sectional view of the refrigerator of the embodiment. FIG. 3 is a refrigeration cycle piping diagram of the refrigerator of the embodiment.

In FIGS. 1 and 2, reference numeral 42 denotes a refrigerator main body. Reference numeral 43 is a heat insulating wall that divides the interior of the refrigerator main body 42 into upper and lower parts, and forms a refrigerating chamber 44 in the upper part, a vegetable chamber 45 provided in the lower part of the refrigerating chamber 44, and a freezing chamber 46 in the lower part. Four
7 is a shelf provided in the refrigerating compartment 44 at appropriate intervals, and 48 is a compartment provided in the lower part of the refrigerating compartment 44,
The storage container 49 is provided to store small foods that are desired to be stored separately from the refrigerating room, foods that are desired to be stored separately from the vegetable room such as fruits and foods that should be taken into consideration when transferring odors.

Reference numeral 50 denotes a rotary door which is attached to the opening surface of the refrigerating compartment 44 so as to be openable and closable. Reference numeral 51 denotes a drawer-type door that is attached to the opening surface of the vegetable compartment 45 so as to be openable and closable, and is configured to integrally withdraw the storage container 52 on the indoor side. Reference numeral 53 is a drawer-type door that is attached to the opening surface of the freezer compartment 46 so as to be openable and closable, and is a storage container 5 on the indoor side.
It is configured so that 4 can be pulled out integrally. A second storage container 55 is provided above the storage container 54 so as to be movable in the front-rear direction.

Reference numeral 56 is a machine room formed in the lower rear part of the refrigerator main body 42, and is provided with a compressor 57 of the refrigeration cycle. Reference numeral 58 is a compressor 57 and a heat insulating wall 42 of the refrigerator main body 42.
The first coolers are arranged in parallel in the left-right direction via a, and the lower end surface of the first cooler 58 is arranged lower than the upper end surface of the compressor 57 so as to be stepped in the height direction. ing. Reference numeral 59 is a first blower provided in the upper part near the first cooler 58, and is arranged obliquely upward. The compressor 57, the first cooler 58, and the first blower 59 are collectively arranged behind the projection plane of the freezer compartment 46.

Reference numeral 60 is a condenser provided below the freezer compartment 46. Reference numeral 61 denotes a first defrost heater which is provided below the first cooler 58 to melt the frost of the first cooler 58.
Reference numeral 2 denotes an evaporation dish for evaporating defrost water, which is arranged below the first cooler 58 and at a stepped portion in the height direction with respect to the compressor 57.
Reference numeral 63 is a first drain pipe that guides the defrost water of the first cooler 58 to the evaporation dish 62 immediately below. Further, the condenser pipe 60 a from the compressor 57 to the condenser 60 is arranged so as to be immersed in the defrost water stored in the evaporation tray 62. 64
Is provided in the machine room 57, and the compressor 57, the condenser 60,
It is a blower for forced ventilation for promoting air convection to the evaporation tray 62.

Reference numeral 65 denotes a second portion provided in the upper rear portion of the refrigerating chamber 44.
And 66 is a second blower provided in the upper part in the vicinity of the second cooler 65. 67 is a second defrost heater which is arranged at the rear of the second cooler 65 to melt the frost of the second cooler 65, and 68 is the defrost water of the second cooler 65 outside the refrigerator. It is the second drain pipe that leads. Then, the second drain pipe 68 is guided to the evaporation dish 62 together with the first drain pipe 63.

Further, 69 is a cold air discharge port into the freezer compartment 46 opened in front of the first blower 59, and 70 is a freezer compartment 4.
6 is a cold air suction port which is provided in the lower part of the inner surface of 6 and communicates with the lower end of the cooler 58.

Reference numeral 71 is a partition plate that partitions the vegetable compartment 45 and the compartment 48, and 72 and 73 are communication ports provided in the front and rear portions of the partition 71, respectively. Further, reference numeral 74 denotes a cool air intake air passage provided in the rear part of the refrigerating chamber 44, and a plurality of cool air intake ports 75 are provided. And the cold air intake air passage 7
The lower end opening of No. 4 communicates with the rear portion of the compartment 48 and the communication port 73. Reference numeral 76 denotes a cool air discharge air passage that is provided on the top surface of the refrigerating chamber 44 and discharges the cool air cooled by the second cooler 65 into the room, and has a cool air discharge port 77 at the front portion.

Reference numeral 78 denotes an electronic control board for controlling the operation of electric parts of the refrigerator, which is vertically installed in a storage portion 79 formed behind the first cooler 58. A back cover 80 covers the machine room 56 including the electronic control board 78 from the back surface. And the compressor 57, the first
The cooling chamber 58, the first blower 59, and other cooling functional components are integrated in the rear of the freezer compartment 46, and the vegetable compartment 4
5, the compartment 48 is not provided with a cooling function component behind it, and the respective storage containers 52, 49 face the heat insulating wall 42b forming the refrigerator body 42 behind it.

Reference numeral 81 is a temperature detector which is provided on the inner surface of the freezing compartment 46 to detect the temperature in the freezing compartment, and 82 is the refrigerating compartment 44.
It is a temperature detector that is provided on the inner side of the inside to detect the temperature inside the refrigerating room.

Next, in FIG. 3, reference numeral 83 indicates the second cooler 6
It is a switching valve provided at the inlet of No. 5. 84 is a first pressure reducer connected between the outlet of the condenser 60 and the inlet of the switching valve 83,
Reference numeral 5 is a second pressure reducer connected between the inlet of the switching valve 83 and the inlet of the second cooler. Then, when the switching valve 83 is opened, the compressor 57, the condenser 60, the first decompressor 84, the second cooler 65, and the first refrigerant circuit 86 that connects the first cooler 58 in an annular shape, and the switching. When the valve 83 is closed, the compressor 57, the condenser 60, the first pressure reducer 84, the second pressure reducer 85, the first
A second refrigerant circuit 87 that connects the coolers 58 in a ring shape is configured.

Regarding the refrigerator configured as described above,
The operation will be described below.

First, when the temperature detected by the temperature detector 81 in the freezer compartment is higher than the set value, the compressor 57 is operated. At this time, if the temperature detected by the temperature detector 82 in the refrigerating chamber is higher than the set value, the switching valve 83 is opened and the refrigerant is the first refrigerant circuit 86.
Are circulated and are evaporated at a predetermined evaporation temperature in the first cooler 58 and the second cooler 65, respectively.

Then, the cool air cooled by the first cooler 58 designed to have a low evaporation temperature is forcibly ventilated by the first blower 59, discharged from the cool air discharge port 69 into the freezer compartment 46, and then sucked in cool air. It is returned to the cooler 58 through the port 70.

On the other hand, the cool air cooled by the second cooler 65 designed to have a relatively high evaporation temperature is forcibly ventilated by the second blower 66, and passes through the cool air discharge air passage 76 from the cool air discharge port 77 to the refrigerating chamber 44. Is discharged. A part of the cold air introduced into the refrigerating compartment 44 is a cold air suction port 75 at the rear of the refrigerating compartment.
Then, it convections through the bottom of the storage container 49 and is returned from the rear of the compartment 48 to the second cooler 65 through the cool air suction air passage 74. In addition, the remaining cold air is connected to the communication port 72 in the front part of the partition plate 71.
From the inside of the vegetable compartment 45, convection around the storage container 52, and the cold air intake air passage 7 from the communication port 73 at the rear of the partition plate 71.
It is returned to the second cooler 65 through 4.

Next, when the temperature detected by the temperature detector 82 of the refrigerating compartment 44 becomes lower than the set value, the switching valve 83 is closed, and the refrigerant bypasses the first refrigerant circuit 86 and the second refrigerant circuit 87. Are circulated and evaporated only in the first cooler 58. Then, when the temperature detected by the temperature detector 81 of the freezer compartment 46 becomes lower than the set value next time, the compressor 57 is stopped and the circulation of the refrigerant is also stopped.

After that, by repeating such an operation, the inside of the freezing chamber 46 is maintained at the freezing temperature such as -18 ° C. by the cold air having the low evaporation temperature of the first cooler 58. On the other hand, the refrigerating room 44, the vegetable room 45, and the compartment 48 are cooled by the second cooler 65 having a relatively high evaporation temperature.
For example, the refrigerating compartment 44 and the compartment 48 are kept at a proper temperature of 1 to 3 ° C. and the vegetable compartment 45 is kept at a proper temperature of 3 to 5 ° C.

In this way, the low temperature freezing chamber 46 and the other chambers with high temperature settings are respectively provided with dedicated coolers 58 and 65.
And the blowers 56 and 66 are independently cooled, so that the freezer 4
Mutual temperature influences between 6 and the other chambers are suppressed. That is, in practical use, the influence of temperature rise such as opening and closing of doors, storage of food, defrosting of a cooler is less likely to occur, and deterioration of food quality during storage can be suppressed.

In particular, in the freezer compartment 46, which is required to be strictly temperature controlled as compared with the conventional one, the temperature effect in a relatively high temperature region including the refrigerating compartment 44 is large. In addition, since the external moisture intrudes from those chambers which are also large in capacity and the evaporated water from the food, the cooling power due to the frost formation on the cooler 58 and the temperature rise at the time of defrosting are large. It is possible to maintain quality.

For the refrigerating compartment 44, the vegetable compartment 45, and the compartment 48 having a high temperature setting, the evaporation temperature of the second cooler 65 for cooling these areas is adjusted to the evaporation temperature of the first cooler 58. It is possible to design a relatively high temperature that matches the temperature setting in the refrigerator. Therefore, the temperature of the cold air flowing through each chamber is also relatively high, and the temperature difference between the food and the cold air is reduced, so that the water evaporation from the food can be suppressed and the drying can be suppressed. Therefore, the storage quality can be particularly improved in the storage of fresh food, which has a large amount of water and whose freshness and dryness influence the freshness and quality. Further, since the cold air temperature is not too low, uneven temperature of the stored food, such as local supercooling due to contact with the cold air, is unlikely to occur, and also in this aspect, the storage quality can be improved.

In addition, the first cooler 58 and the second cooler 6
The refrigeration cycle efficiency can be improved by appropriately switching the cooling of No. 5 when necessary, and further by designing the evaporation temperature of the cooler to be suitable for each region, especially by designing the evaporation temperature of the second cooler to be relatively high. And the energy saving effect can be obtained.

On the other hand, regarding the arrangement of the refrigeration cycle, the compressor 57 is laterally displaced from the center line of the refrigerator main body 42, and the invalid space in the machine room 56 is compressed so that the refrigerator main body 4 can be compressed.
It is reduced to about half the width of 2. Then, the first cooler 58 is housed in the newly created space inside the refrigerator by shrinking the invalid space while adjusting the depth and height dimensions to maintain the cooling capacity.

Therefore, the compressor 57 and the first cooler 58
Are arranged side by side in the left-right direction via the heat insulating wall 42a, and it is no longer necessary to arrange a cooler above the compressor to create an ineffective space in the width direction of the refrigerator as in the conventional case.
The effective storage volume in the compartment increases.

Further, by disposing the heavy compressor 57 and the first cooler 58 side by side in the left-right direction, the center of gravity of the refrigerator main body 42 becomes lower than that of the conventional one, and the stability is further enhanced.

The compressor 57, the first cooler 58, the first
All the blowers 59 are efficiently arranged behind the freezer compartment 46 located at the bottom of the refrigerator main body 42 to improve the mounting efficiency. Therefore, the assembly workability in the manufacturing process is improved. In addition, it is possible to adapt to environmental problems by providing a refrigerator that is easy to recycle by improving disassembly and separation at the time of product disposal.

Further, the first blower 59 is the first cooler 5
By arranging just above 8 at an angle toward the upper side, the dimension in the height direction can be compressed, and it becomes easier to store the size in the rear of the projection surface of the freezing chamber 46. Further, due to the inclined arrangement, the ventilation resistance for sending the cool air from the first cooler 58 arranged vertically to the inside of the freezer compartment 46 in front is reduced, and the cooling efficiency is also improved. The rear part in the projection plane means that parts such as the compressor 57, the first cooler 58, and the first blower 59 are mostly contained in the projection plane of the opening of the freezer compartment 46 and protrude into other rooms. It does not depart from the gist of the present invention, which means that a part of the components interferes with the thickness of the heat insulating wall that divides the periphery of the freezing chamber 46 and the projection surface of the bottom space of the main body.

Further, while the first blower 59 is arranged above the first cooler 58, it does not invade the rear space of the vegetable compartment 45, and the second cooler 65 and the second blower 66 are refrigerated. Vegetable room 4 because it is located at the upper rear of room 44
5, because it does not violate the space behind the compartment 48, the vegetable compartment 4
The storage container 52 of No. 5 and the storage container 49 of the compartment 48 can be extended to a position facing the heat insulating wall 42b on the inner surface, and the storage amount can be increased. Also, by replacing the increase in the storage amount with the reduction in height in line with this,
In particular, the vegetable compartment 45 is a shallow and large vegetable compartment, and it is possible to realize a vegetable compartment that is easy to look around, has a small stacking capacity, and has good storability.

The first blower 5 is provided behind the vegetable compartment 45.
Since it is not necessary to construct a space for storing 9, the vegetable compartment 45
The heat insulating wall 43 between the freezing chamber 46 and the freezing chamber 46 does not have to be stood up behind the heat insulating wall 43 as in the conventional case, so that the invalid volume is reduced and the effective storage volume is increased. In addition, since the vegetable compartment 45 is provided with an independent drawer-type door 51, the depth of the compartment does not become insufficient unlike the case where the vegetable compartment is divided into the refrigerator compartment 44, and the vegetables are shallow and easy to see. Easy to realize a room. In addition, food can be taken in and out independently, which is highly convenient. As a result, it is possible to provide a refrigerator with improved storability in a convenient area located at the center of the height of the refrigerator.

Next, the operation inside the machine room 57 will be described. By the operation of the blower 64 for forced ventilation, the air sucked from the front and bottom of the refrigerator exchanges heat with the condenser 60 to promote heat dissipation, and passes through the upper surface of the evaporation tray 62. Evaporating dish 6
The defrost water stored in 2 is the condenser pipe 6 immersed in water.
At the same time as being heated by the direct heating action of 0a, forced convection of the hot air exchanged with the condenser 60 promotes heating and aeration to efficiently evaporate. The air that has passed through the evaporating dish 62 cools the outer shell of the compressor 57 having a higher temperature and is then discharged from the front part of the refrigerator.

During the cooling, the first cooler 58 and the second cooler 58
Frost attached to the cooler 65 of the first defrost heater 61,
It is melted by the second defrosting heater 67 and collected in the evaporation tray 62 via the first drainage pipe 63 and the second drainage pipe 68. Therefore, the drainage water from the two coolers can be evaporated in one evaporation dish, and especially the first drain pipe 6
Since 3 has a vertical relationship in the vicinity of the first cooler 58, the length of the drainage pipe can be shortened and the structure can be simplified. In addition,
Since the evaporator 57 and the first cooler 58 are arranged in a stepped space in a stepped manner in the height direction, the evaporation tray 62 is arranged in a stepped space, so that the space can be efficiently used and the internal volume efficiency can be increased. .

Next, since the electronic control board 78 for driving and controlling the electric parts is housed outside the refrigerator behind the first cooler 58, the compressor 57, the first blower 59, and the blower 6 are provided.
4. The electric wiring can be shortened and simplified by being close to the electric parts such as the first defrosting heater 61, and the cost can be reduced and the man-hours can be reduced. Also, the complicated wiring of electrical wiring is reduced,
It is possible to provide a highly reliable refrigerator in which the effects of radio noise interference and the like are reduced.

The volume generated by improving the mounting efficiency of the cooling function component and the cooling control component is directly utilized for increasing the storage volume, and the internal volume is left stationary to reduce the outer shape of the refrigerator main body 42 to reduce the installation space. Alternatively, the increased volume may be transferred to the heat insulation volume to reduce the heat absorption load of the refrigerator, thereby contributing to energy saving and cost reduction due to downsizing of refrigeration cycle parts such as the compressor 57.

(Second Embodiment) FIG. 4 is a front view of a refrigerator according to a second embodiment of the present invention. FIG. 5 is a vertical sectional view of the refrigerator according to the embodiment. Figure 4,
In FIG. 5, 88 is a refrigerator main body. 89 and 90 are heat insulating walls that divide the inside of the refrigerator body 88 into upper and lower parts,
A refrigerating compartment 91 is provided above the heat insulating wall 89 and a vegetable compartment 92 is provided below the refrigerating compartment 91.
Is arranged, and the multipurpose room 93 and the heat insulating wall 8 are provided under the heat insulating wall 89.
In the lower part of the heat insulation wall 90 provided below 9
To form a compartment.

Reference numeral 95 is a rotary door attached to the opening surface of the refrigerating chamber 91. Reference numeral 96 denotes a drawer-type door attached to the opening surface of the vegetable compartment 92, which is a storage container 97 on the indoor side.
It is configured to be able to pull out together. Reference numeral 98 denotes a drawer-type door attached to the opening surface of the multipurpose room 93, and is configured to integrally draw out the storage container 99 on the indoor side. Reference numeral 100 denotes a drawer-type door attached to the opening surface of the freezer compartment 94, which is the storage container 1 on the indoor side.
01 is integrally drawn out.

Further, the compressor 57 of the refrigeration cycle and the first cooler 58 are arranged side by side in the left-right direction via the heat insulating wall 42a of the refrigerator main body 42, and are provided in the upper part in the vicinity of the first cooler 58. A first blower 59 is provided, and a damper device 102 for adjusting the amount of cool air to the multipurpose chamber 93 is provided above the compressor 57 and beside the first blower 59.
Here, the damper device 102 adjusts the amount of the cool air cooled by the first cooler 58 sent into the multipurpose chamber 93 by the forced air blowing action of the first blower 59, and the inside of the multipurpose chamber 93 is set by the user's arbitrary temperature setting. Is switched from the freezing temperature zone to the refrigerating temperature zone. 103 is a multipurpose room 9 from the damper device 102.
3 is a cold air discharge air duct for circulating cold air. The cooling functional components of the compressor 57, the first cooler 58, the first blower 59, and the damper device 102 are collectively arranged behind the projection surface of the freezer compartment 94.

A second cooler 65 is arranged in the rear of the upper part of the refrigerating chamber 91 and a second blower is arranged in the upper part in the vicinity thereof. Reference numeral 104 is a partition plate that partitions the vegetable compartment 92 from the compartment 48, and 105 and 106 are communication openings provided in the front and rear portions of the partition board 104, respectively. Further, 107 is a cool air intake air passage provided in the rear portion of the refrigerating chamber 91.

Reference numeral 108 denotes a temperature detector provided on the inner surface of the freezing compartment 94 for detecting the temperature in the freezing compartment 94, and 109 denotes the refrigerating compartment 9.
1 is a temperature detector that is provided on the inner surface of the multipurpose chamber 93 to detect the temperature inside the refrigerating chamber 91, and 110 is a temperature sensor that is provided on the inner surface of the multipurpose chamber 93 and detects the temperature inside the multipurpose chamber 93. Further, the electronic control board 78 for controlling the operation of the electric components of the refrigerator is provided at the rear of the freezer compartment 94 in the first cooler 5.
It is installed behind 8.

Regarding the refrigerator configured as described above,
The operation will be described below.

First, when the temperature detected by the temperature detector 108 in the freezer compartment 94 is higher than the set value, the compressor 57 is operated. At this time, if the temperature detected by the temperature detector 109 in the refrigerator compartment 91 is higher than the set value, the refrigerant circulates through the first cooler 58 and the second cooler 65, respectively, and evaporates at a predetermined evaporation temperature. Then, the cool air cooled by the first cooler 58 is forcedly ventilated by the first blower 59 to cool the inside of the freezing compartment 94 to, for example, −18 ° C.

At this time, the temperature detector 1 in the multipurpose room 93
When the detected temperature of 10 is higher than the set value, the cool air cooled by the first cooler 58 is sent to the damper device 102 by the first blower 59, and the flow rate is changed by the opening / closing action of the damper based on the user's arbitrary setting. Is adjusted and flows into the multipurpose chamber 93 through the cool air discharge air passage 103. Here, the multipurpose chamber 93 is cooled and maintained at any temperature from the freezing temperature zone to the refrigerating temperature zone by the user's arbitrary setting.

On the other hand, the cool air cooled by the second cooler 65 is forcedly ventilated by the second blower 66 and discharged into the refrigerating chamber 91 through the cool air discharge air passage 76. A part of the cold air introduced into the refrigerating compartment 91 is the cold air suction air passage 1 at the rear of the refrigerating compartment.
It is returned to the second cooler 65 through 07. Further, the remaining cold air flows into the vegetable compartment 92 from the front communication port 105 of the partition plate 104, convects around the storage container 97, and flows from the rear communication port 106 of the partition plate 104 through the cool air intake air passage 107. It is returned to the second cooler 65. Due to such a cooling action, for example, the refrigerating chamber 91 and the compartment 48 are 1 to 3
The vegetable compartment 92 is maintained at a proper temperature such as 3 to 5 ° C.

Next, when the temperature detected by the temperature detector 82 in the refrigerating chamber becomes lower than the set value, the refrigerant circulates only in the first cooler 58 and evaporates. Then, when the temperature detected by the temperature detector 108 of the freezer compartment 94 becomes lower than the set value next time, the compressor 57 is stopped and the circulation of the refrigerant is also stopped.

As described above, since the low-temperature freezing room 94 and the refrigerating room 91, the compartment 48, and the vegetable room 92 having a high temperature setting are independently cooled by their own coolers and blowers, mutual temperature influences are avoided. Therefore, it is possible to suppress the quality deterioration of the food during storage.

Further, for the refrigerating room 91, the vegetable room 92 and the compartment 48 having a high temperature setting, the evaporation temperature of the second cooler 65 for cooling these areas is set to a relatively high temperature corresponding to the internal temperature setting. Can be designed. Therefore, the temperature of the cold air flowing through each chamber is also relatively high, the temperature difference between the food and the cold air is reduced, water evaporation from the food can be suppressed, drying can be suppressed, and quality can be improved. Further, uneven temperature of the stored food such as local supercooling hardly occurs, and the storage quality can be improved.

Further, the first cooler 58 and the second cooler 6
5 cooling is switched appropriately when necessary, and
The efficiency of the refrigeration cycle can be increased and the energy saving effect can be obtained by designing the evaporation temperatures of the Nos. 8 and 65 suitable for the respective regions, particularly by designing the evaporation temperature of the second cooler 65 to be relatively high. it can.

On the other hand, the compressor 57 and the first cooler 58 are arranged side by side in the left-right direction via the heat insulating wall,
Unlike the conventional case, the cooler is not arranged above the compressor to form an ineffective space in the width direction of the refrigerator, and the effective storage volume in the compartment is increased.

Further, by arranging the heavy compressor 57 and the first cooler 58 side by side in the left-right direction, the center of gravity of the refrigerator main body 88 becomes lower than the conventional center of gravity, and the stability is further enhanced.

Further, the compressor 57 and the first cooler 58, the first
The blower 59 and the damper device 102 are arranged side by side, and all of these cooling function parts are efficiently arranged behind the freezer compartment 94 located at the bottom of the refrigerator main body 88 to enhance the mounting efficiency. Therefore, the assembly workability in the manufacturing process is improved. Also, disassembly at the time of product disposal,
By providing a refrigerator that is easy to recycle and that can be sorted easily, it is possible to adapt to environmental problems.

Further, the first cooler 58, the first blower 59, and the damper device 102 are arranged in the rear of the freezer compartment 94, and the second cooler 65 and the second blower 66 are arranged in the refrigerating compartment 91. Since it is located in the upper rear part, it does not violate the rear space of the vegetable compartment 92, the multipurpose room 93, and the compartment 48,
Storage container 97 of vegetable room 92, storage container 9 of multipurpose room 93
9. The storage container 49 of the compartment can be extended to a position facing the heat insulating wall on the back surface, and the storage amount can be increased. In addition, by replacing the increase in the storage amount with the reduction in height in accordance with this, the vegetable compartment 92 becomes a shallow and wide vegetable compartment, and a vegetable compartment that is easy to overlook and has little stacking capacity and good storability is realized. You can also do it.

Further, since the multipurpose chamber 93, which is partitioned by the heat insulating walls 89 and 90 and is thermally independent, is cooled by the first cooler 58 having a low evaporation temperature design, the temperature can be selected in the freezing temperature range. , It will be more convenient for the user. As described above, it is possible to provide a refrigerator with improved storability and convenience in a convenient area located at the center of the height of the refrigerator.

Next, since the electronic control board 78 for driving and controlling the electric parts is housed outside the refrigerator behind the first cooler 58, the compressor 57, the first blower 59, and the blower 6 are provided.
4, the damper device 102, the first defrost heater 61, and other electrical components are close to each other, and the electrical wiring can be shortened and simplified, which is inexpensive and the number of work steps can be reduced. In addition, the complicated wiring of the electric wiring is reduced, and the influence of radio noise interference can be reduced.

Example 3 FIG. 6 is a front view of a refrigerator according to Example 3 of the present invention. In FIG. 6, 111 is a refrigerator main body. 112
And 113 are heat insulating walls joined to each other in a substantially L shape.
A multipurpose chamber 114 is defined between the first and second chambers 9. Also,
Reference numeral 115 denotes an ice making chamber formed adjacent to the multipurpose chamber 114 via a heat insulating wall 113, and an automatic ice making machine 116 and an ice storage container 117 are provided therein. And the multipurpose room 11
4, a drawer-type door 118 at the opening of the ice making chamber 115,
119 are provided respectively.

In the multipurpose room 114 and the ice making room 115, both the first cooler 58 and the first blower 59 are provided in the freezer room 9.
4, the multipurpose chamber 114 is temperature-controlled by the damper device 102. Also, the multipurpose room 11
4. In the rear of the ice making chamber 115, the first cooler 58,
The cooling functional components such as the first blower 59 and the damper device 102 are not arranged.

Regarding the refrigerator configured as described above,
The operation will be described below.

The cold air forcedly ventilated by the first blower 59 at the time of cooling the first cooler 58 directly flows into the freezing compartment 94 and the ice making compartment 115 and is cooled to, for example, a freezing temperature of -18 ° C. Then, frozen foods and ice are frozen and stored. At this time, if the temperature detected by the temperature detector 110 in the multi-purpose room 114 is higher than the set value, the cool air cooled by the first cooler 58 is sent to the damper device 102 by the first blower 59, and is arbitrarily set by the user. The flow rate is adjusted by the opening / closing action of the damper based on the setting of the above, and flows into the multipurpose chamber 114 via the cool air discharge air passage 103. Here, the multipurpose chamber 114 is cooled and maintained in any of the freezing temperature zone to the refrigerating temperature zone by the user's arbitrary setting.

As described above, in the convenient area located at the center of the height of the refrigerator, the multipurpose storage room and the ice making room 115, which are improved in storability and convenience, are independently provided, and the depth of the room is increased. It is possible to increase the amount of food storage and the amount of ice storage by maximizing the use of. The other effects of this embodiment are the same as the effects of the second embodiment described above.

[0108]

[0109]

As described above, the invention according to claim 1 includes a plurality of storage chambers vertically provided in the refrigerator main body and a storage chamber at the bottom of the plurality of storage chambers. A cooler provided in the above storage chamber, a machine room formed behind the lowermost storage chamber, a compressor provided in the machine chamber, a condenser provided below the lowermost storage chamber, and A condenser pipe and an evaporation tray for evaporating defrosting water of a cooler provided in the two or more storage chambers, and a lower end surface of the cooler provided in the lowermost storage chamber is an upper end surface of the compressor. Further, the compressor and the cooler provided in the lowermost storage chamber so that a step difference in the height direction is formed in the machine chamber below the cooler provided in the lowermost storage chamber. The evaporating dishes are arranged side by side in the left-right direction, and the evaporating dish is connected to the cooler at the step difference Since it is arranged immediately below and is heated by the condenser pipe, the ineffective space in the width direction of the machine room is reduced, and the lower part of the cooler can be effectively utilized as the installation space for the machine room parts. In addition, evaporation of the defrosting water can be promoted by heating the evaporation dish arranged in the stepped portion with the condenser pipe.

According to a second aspect of the present invention, in addition to the first aspect of the invention, a blower for forcibly ventilating the lowermost storage chamber is provided in the vicinity of the cooler provided in the lowermost storage chamber, Since the compressor, cooler, and blower are placed behind the projection plane of the bottom storage room, cooling function components are integrated to improve mounting efficiency, and improve the ease of assembly, separation, and disassembly in the manufacturing process. It is possible to improve recyclability at the time of product disposal by improving

According to the invention described in claim 3 , in the invention described in claim 2 , since the blower is arranged obliquely upward in the upper part of the cooler, the installation space in the height direction of the blower can be suppressed. , The ventilation resistance is reduced and the cooling efficiency is increased.

The invention described in claim 4 is the same as claim 1 or
Further, in the invention described in 2 , the electronic control board is housed in the rear of the cooler provided in the lowermost storage chamber, so that the electric wiring is concentrated in the vicinity of the electric parts, the electric wiring is shortened, simplified, and inexpensive. Therefore, the number of work steps can be reduced. Further, it is possible to provide a highly reliable refrigerator in which complicated wiring of electric wiring is reduced and influences such as radio noise interference are reduced.

[0113]

According to a fifth aspect of the present invention, a heat insulating wall that divides the refrigerator body into upper and lower parts, a refrigerating chamber formed in the upper portion of the heat insulating wall, a freezing chamber formed in the lower portion, and a first freezing chamber provided in the freezing chamber are provided. 1, a second cooler provided in the refrigerating chamber, and a first blower provided near the first cooler,
A second blower provided in the vicinity of the second cooler, a machine room formed in the lower rear part of the refrigerator main body, a compressor provided in the machine room, a condenser provided below the freezing room, and Condenser pipe, and an evaporation dish for evaporating defrost water of the first cooler and the second cooler, the lower end surface of the first cooler lower than the upper end surface of the compressor , The compressor and the first cooler are arranged side by side in the left-right direction so that a stepped portion in the height direction is formed in the machine chamber below the first cooler, and the evaporation tray is stepped In the section, the condenser, the first cooler, and the first blower are arranged immediately below the cooler to be heated by the condenser pipe, and the compressor, the first cooler, and the first blower are arranged rearward in the projection plane of the freezer compartment. , A freezer compartment with a first cooler and a first blower,
The second cooler and the second blower independently cool the refrigerating compartments at a cool air temperature suitable for cooling the refrigerating compartments, thereby improving the storage quality of food without being affected by the mutual temperature. Moreover, energy saving can be achieved by improving the cooling efficiency. Further, it is possible to prevent the arrangement of the cooling function parts from invading the area of the other room and hindering the storability. Further, the ineffective space in the width direction of the machine room is reduced, and moreover, the installation space for the parts in the machine room is left in the stepped portion below the cooler. Further, by heating the evaporation dish arranged at the stepped portion with the condenser pipe, evaporation of defrost water is promoted.

According to the invention described in claim 6 , in the invention described in claim 5 , since the second cooler is arranged in the upper part of the refrigerating compartment, the cooling function parts are excluded from the region of the central portion which is easy to use. , The storage space is increased to the depth inside the storage, and the storage capacity is improved.

The invention according to claim 7 is the invention according to claim 5 or
Further, in the invention described in 6 , the refrigerating compartment and the vegetable compartment provided with independent doors are provided above and below the heat insulating wall, and are configured to be cooled by the second cooler. Since the cooling function parts are eliminated, the depth becomes deeper and the capacity can be secured even if the height is low. In addition, it is possible to provide a user-friendly vegetable room suitable for storing vegetables that are easy to see and less likely to be piled up.

The invention described in claim 8 is the invention according to claims 5 to 7.
In the invention according to any one of the above, further, in the lower part of the heat insulating wall, a multipurpose room and a freezing room provided with independent doors are provided above and below, and the freezing room and the multipurpose room are cooled by the first cooler, With a damper device to adjust the amount of cold air in the multipurpose room,
Since the compressor, the first cooler, the first blower, and the damper device are arranged rearward in the projection plane of the freezer compartment, the cooling function parts are removed from the inner area of the multipurpose room, and the depth becomes deeper, and the storage capacity is increased. Will increase. Further, the multipurpose chamber can be arbitrarily set in the temperature range from freezing to refrigeration by the cold air amount adjusting action of the damper device, and a highly convenient storage chamber can be provided at a convenient position.

According to the invention described in claim 9 , in the invention described in claim 8 , the first blower is arranged above the cooler, and the damper device is arranged above the compressor.
The blower and the damper device are lined up in the left-right direction and are compactly stored in the rear of the freezer compartment, which facilitates disassembly during assembly and disposal and simplifies electrical wiring.

According to a tenth aspect of the present invention, in addition to the eighth aspect , an ice making chamber provided with an independent door is provided under the heat insulating wall in parallel with the multipurpose chamber, and the first cooler is provided. Since the ice making chamber is configured to be cooled by the above, there is no cooling function component in the inner region of the ice making chamber, and the depth becomes deep and the ice storage amount increases. In addition, it is possible to provide an independent multipurpose storage room and ice making room which are easy to use and have high storability and convenience.

[Brief description of drawings]

FIG. 1 is a front view of a first embodiment of a refrigerator according to the present invention.

FIG. 2 is a vertical sectional view of the refrigerator according to the embodiment.

FIG. 3 is a refrigeration cycle piping diagram of the refrigerator according to the embodiment.

FIG. 4 is a front view of a second embodiment of the refrigerator according to the present invention.

FIG. 5 is a vertical sectional view of the refrigerator according to the embodiment.

FIG. 6 is a front view of a refrigerator according to a third embodiment of the present invention.

FIG. 7 is a front view of a conventional refrigerator.

FIG. 8 is a vertical sectional view of the refrigerator.

[Explanation of symbols]

42 Refrigerator body 43 Insulation wall 44 Refrigerator 45 vegetable room 46 Freezer 56 Machine room 57 compressor 58 First Cooler 59 First Blower 62 evaporation dish 63 First drainage pipe 65 Second cooler 66 Second Blower 68 Second drainage pipe 78 Electronic control board 88 Refrigerator body 89 insulation wall 91 Refrigerator 92 Vegetable room 93 Multipurpose room 94 Freezer 102 damper device 111 Refrigerator body 114 Multipurpose room 115 Ice Maker

─────────────────────────────────────────────────── ─── Continuation of the front page (56) Reference JP-A-10-318653 (JP, A) JP-A-7-63468 (JP, A) JP-A-10-238924 (JP, A) JP-A-11- 173729 (JP, A) JP 11-23132 (JP, A) JP 9-145223 (JP, A) Actual development 1-120084 (JP, U) (58) Fields investigated (Int.Cl. ⁷ , DB name) F25D 19/00 520 F25D 19/00 540

Claims (10)

(57) [Claims] 1. A plurality of storage chambers provided above and below in a refrigerator main body, a cooler provided in two or more storage chambers including a storage chamber at the bottom of the plurality of storage chambers, and the bottom portion. A machine room formed at the rear of the storage room, a compressor provided in the machine room, a condenser and a condenser pipe provided below the lowermost storage room, and provided in the two or more storage rooms. A cooling plate provided in the lowermost storage chamber, which is composed of an evaporating dish for evaporating defrosting water of the cooler, lowering the lower end surface of the cooler provided in the lowermost storage chamber from the upper end surface of the compressor. The compressor and the cooler provided in the lowermost storage chamber are arranged side by side in the left-right direction so that a stepped portion in the height direction is formed in the machine chamber below the vessel, and the evaporation dish is stepped. Located directly below the cooler in the section and heated by the condenser piping. A refrigerator characterized by being configured as described above. 2. A blower for forcibly ventilating the lowermost storage chamber is provided in the vicinity of the cooler provided in the lowermost storage chamber, and the compressor, the cooler, and the blower are in the projection plane of the lowermost storage chamber. The refrigerator according to claim 1 , wherein the refrigerator is arranged behind the refrigerator. 3. The refrigerator according to claim 2 , wherein the blower is arranged at an upper part of the cooler so as to be inclined obliquely upward. 4. The method of claim 1 or, characterized in that matches the electronic control board to the rear of the cooler provided in the storage compartment of the bottom
The refrigerator according to 2 . 5. A heat insulating wall for partitioning the refrigerator body into upper and lower parts,
A refrigerating chamber formed in the upper part of the heat insulating wall, a freezing chamber formed in the lower part, a first cooler provided in the freezing chamber, a second cooler provided in the refrigerating chamber, and the first cooler. A first blower provided in the vicinity of a cooler, a second blower provided in the vicinity of the second cooler, a machine room formed in the lower rear part of the refrigerator body, and a compressor provided in the machine room. A condenser and a condenser pipe provided below the freezer compartment;
Of the first cooler and the evaporation tray for evaporating the defrosting water of the second cooler, and lowering the lower end surface of the first cooler from the upper end surface of the compressor, The compressor and the first cooler are arranged side by side in the left-right direction so that a stepped portion in the height direction is formed in the machine room below, and the evaporation dish is directly below the cooler at the stepped portion. A refrigerator characterized in that it is arranged to be heated by the condenser pipe, and the compressor, the first cooler, and the first blower are arranged behind the projection plane of the freezing compartment. 6. The refrigerator according to claim 5 , wherein the second cooler is arranged above the refrigerating compartment. The top of 7. insulating wall according to claim 5 or 6, characterized by being configured to cool the second cooler provided refrigerator compartment and a vegetable compartment with separate door vertically Refrigerator. 8. A multipurpose room having independent doors and a freezing room are provided below the heat insulating wall, and a damper device for adjusting the amount of cold air to the multipurpose room is provided, and the first cooler is used for freezing. together configured to cool the chamber and the multipurpose chamber, the compressor, the first cooler, the first blower, claims, characterized in that the damper device is arranged in the rear in the projection plane of the freezing chamber The refrigerator according to any one of 5 to 7 . 9. The first blower is arranged above the cooler,
The refrigerator according to claim 8 , wherein the damper device is arranged above the compressor. The bottom of 10. insulating wall according to claim and multipurpose chamber juxtaposed ice making chamber with separate doors, characterized by being configured to cool the ice making chamber with the first cooler 8 Refrigerator described in.