JP3370956B2 - refrigerator - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bottom portion of a refrigerator body and an electric component housing portion made of a resin material.

[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 to increasing the volumetric efficiency. A method of directly increasing the internal volume of the refrigerator by directly enhancing the heat insulating performance of the heat insulating material of the refrigerator body, a refrigeration cycle for cooling the inside of the refrigerator, Blowers, damper devices, cooling functional parts such as cooling air passages, electronic control boards, etc. are indispensable, but a typical approach is to reduce the occupied volume of the structure that becomes an ineffective volume for the storage space in the refrigerator. It is said that.

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 refrigerator according to the conventional example 1 will be described below with reference to the drawings.

FIG. 8 is a sectional view of a refrigerator showing the first conventional example. FIG. 9 is a perspective view of the rear surface of the refrigerator showing the first conventional example.

In FIGS. 8 and 9, the refrigerator body 1 is formed by foaming and filling a heat insulating material 4 between an outer box 2 made of a steel plate and an inner box 3 made of a resin.

Inside the refrigerator body 1, a vegetable compartment 8 having a refrigerating compartment 6 provided with a pivotable door 5 at the top and a drawer type door 7 arranged below the refrigerating compartment 6.
And a pull-out door 9 arranged below the vegetable compartment 8
Upper freezer compartment 10 equipped with and pull-out door 1 at the bottom
And a lower freezer compartment 12 provided with 1. Reference numeral 13 is a heat insulating partition wall that partitions the vegetable compartment 8 and the upper freezer compartment 10, and 14 is a rising portion provided at the rear portion of the heat insulating partition wall 13.

A machine room 15 is formed behind the lower freezer compartment 12 and is provided with a compressor 16 for the refrigeration cycle. Behind the upper freezer compartment 10 is a cooler 1 for the refrigeration cycle.
7. A blower 18 is arranged behind the vegetable compartment 8 with the rising portion 14 separating the front from the vegetable compartment 8. A damper device 19 is arranged in the lower rear part of the refrigerating compartment 6. Further, 20 is a partition plate that partitions the refrigerating compartment 6 and the vegetable compartment 8 and 21 is a return duct for returning the cold air that has cooled the refrigerating compartment 6 and the vegetable compartment 8.

Next, the operation will be described.

First, the cool air generated by the cooler 17 is blown by the blower 18 to the damper device 19, the upper freezing compartment 10 and the lower freezing compartment 12. The cool air blown to the damper device 19 is sent to the refrigerating compartment 6, and the cool air blown out from the wall surface of the rear surface of the refrigerating compartment 6 cools the inside of the refrigerating compartment 6 along the arrow along the back surface of the partition plate 20. Guided to the vegetable room 8.
Then, the cool air that has cooled each chamber is returned to the cooler 17 through the return duct 21, cooled again by the cooler 17 and guided to the blower 18. By repeating such an operation, each chamber is cooled and supported at a predetermined temperature.

On the other hand, from the viewpoint of the cooling function and the mounting efficiency of the control parts, the cooler 17, which is a cooling source, is different from the vegetable compartment 8 in which the inside temperature is high, and the upper freezer compartment 10 in which the inside temperature is lowest is different. Since it is disposed close to the rear, the temperature drop in the vegetable compartment 8 can be reduced and the upper freezing compartment 10 and the lower freezing compartment 12 can be efficiently cooled. In particular, since the upper freezing compartment 10 and the lower freezing compartment 12 are arranged below the refrigerator body 1,
Since the cooler 15 can be arranged inevitably below, the dead space formed between the machine room 15 and the cooler 17 can be eliminated. Furthermore, the cooler 17
And the blower 18 and the damper device 19 arranged on the upper part thereof
Can be lowered downwards, which improves mounting efficiency and
It is said that the inside of the refrigerator can be effectively used and the center of gravity of the refrigerator main body 1 can be lowered to improve the installability.

Next, as a conventional example showing an electric component housing portion for housing an electronic control board, for example, Japanese Patent Application Laid-Open No. 5-8744.
There is one disclosed in Japanese Patent No. Hereinafter, the refrigerator according to the conventional example 2 will be described with reference to the drawings.

FIG. 10 is a sectional view of a refrigerator according to the second conventional example.

In FIG. 10, 22 is a refrigerator body, 23 is an outer box made of steel plate, 24 is an inner box made of resin, and 25 is a heat insulating material filled with foam between the outer box 23 and the inner box 24. is there. Reference numeral 26 denotes an electric component storage portion formed in a concave shape on the upper rear side of the outer box 23, and stores an electronic control board 27 inside. Reference numeral 28 is a closing plate made of a steel plate that covers the electric component storage portion 26. Reference numeral 29 is a compressor of a refrigerating cycle which is installed in the lower rear part of the refrigerator body 22 and is driven by an electric motor.

With respect to the refrigerator configured as described above,
The operation will be described below.

The electronic control board 27 housed in the electric part housing section 26 is energized to generate heat when the compressor 29 is in operation. The large area allows for efficient heat dissipation,
According to the company, it will be possible to use parts that generate a large amount of heat, which will increase the degree of freedom in design.

Next, as another conventional example, Japanese Patent Laid-Open No. 10-14
There is one disclosed in Japanese Patent No. 8463.

The refrigerator according to the conventional example 3 will be described below with reference to the drawings.

FIG. 11 is a perspective view of a refrigerator according to the third conventional example.

In FIG. 11, 30 is a refrigerator main body, 31 is an outer box made of steel plate, 32 is an inner box made of resin, and 33 is a heat insulating material filled with foam between the outer box 31 and the inner box 32. is there. Reference numeral 34 is a storage chamber formed inside the refrigerator body 30. Reference numeral 35 is a machine room formed in the lower rear part of the refrigerator body 30, and 36 is a compressor of a refrigeration cycle which is disposed in the machine room 35 and driven by an electric motor.

Further, 37 is a reinforcing plate integrally provided on the bottom side of the outer box 31 in the machine chamber 35, and 38 is a side end portion in the machine chamber 35, which is screwed to the reinforcing plate 37. It is a fixed electrical component storage unit. The electrical component storage section 3
8 is composed of a storage box 39 and a lid 40 that closes the opening of the storage box 39, and stores an electronic control board 41 inside.

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

The electronic control board 41 accommodated in the electric component storage section 38 is energized to generate heat when the compressor 36 is operating, but since the electric component storage section 38 is arranged in the machine room 35, it is stored in the storage room. It is said that the heat effect on the 34 side can be reduced and the increase in power consumption can be suppressed.

[0026]

However, in the configuration of the above-mentioned conventional example 1, since the compressor 16 is housed in the machine chamber 15 over the entire width behind the lower freezing chamber 12, the width direction in the machine chamber 15 is reduced. There was a drawback that there was a large amount of invalid space.

Further, since the cooler 17 is arranged above the compressor 16, the height of the cooler 16 is designed to be extended in order to have a necessary and sufficient cooling capacity.
The blower 18 arranged in the vicinity of the upper part of the cooler 17 protrudes above the upper freezer compartment 10. Therefore, the rear end of the heat insulation partition wall 13 is partially raised to form the rising portion 14 and the blower 18 There is a drawback that the surroundings and the vegetable compartment 8 need to be thermally insulated to complicate the structure and increase the ineffective volume.

Further, by disposing the rising portion 14 and the blower 18 at the rear, the depth of the lower portions of the vegetable compartment 8 and the refrigerating compartment 6 is violated, and the storage capacity is reduced, and the refrigerator is located at the center of the height of the refrigerator. There is also a drawback in that the storage performance of the storage part, which is the most convenient storage operation, is hindered.

Further, in such a refrigerator, it is necessary to increase the depth of the refrigerator main body in order to secure the capacity in the refrigerator, and there is a drawback that the refrigerator protrudes from the nearby cupboard and the like and the installability deteriorates. It was

The present invention solves the problem of the first conventional example, and an object of the present invention is to provide a refrigerator in which the effective space in the refrigerator is expanded, and the storability and the installability are improved.

Further, in the configuration of the above-mentioned conventional example 2, the distance between the electronic control board 27 and the controlled parts to be controlled, especially the compressor 29, is large, so that the cost for wiring increases and the assembling work is complicated. There was a drawback that

The present invention solves the problem of the second conventional example, and an object of the present invention is to shorten the distance between the electronic control board and the controlled parts to simplify the electric wiring.

Further, in the configuration of the above-mentioned conventional example 3, the electric component housing portion 38 is provided in the space inside the machine chamber 35 so as not to be separated from the compressor 36 that emits high temperature.
There is a drawback that the ambient temperature of No. 1 becomes high, which affects the heat resistance reliability and the life of the components attached to the electronic control board 41.

The present invention solves the problem of Conventional Example 3, and an object of the present invention is to suppress the rise of the ambient temperature around the electronic control board and improve the reliability.

[0035]

In order to achieve this object, the present invention has a structure in which a recess is formed by recessing a part of the lower rear part of a refrigerator main body, and a machine room is formed in the recess to accommodate a compressor. ,
A cooler is provided inside the refrigerator adjacent to the compressor.

As a result, the refrigeration cycle parts are integrated in the lower rear part to enhance the mounting efficiency, and it is possible to provide a refrigerator having a large effective space and a high installation stability.

Further, the recess and the rear part of the cooler are integrally formed of resin.

As a result, since the complicated space shape behind the lower part of the refrigerator due to the integration of the refrigeration cycle parts can be formed without waste, the refrigeration cycle parts and the blower are integrated behind the lower storage room, and the lower part of the upper storage room is easy to use. The depth of the area expands and the storability improves.

A resin enclosure is provided at the rear of the cooler, and the electronic control board is housed in the enclosure.

As a result, the electrical wiring between the electronic control board and the controlled parts is simplified and the temperature reliability of the electronic control board is improved.

Further, according to the present invention, locking pieces for locking electrical wirings connected to electric parts and electronic control boards are integrally formed inside and outside the resin enclosure.

As a result, the wiring processing work can be simplified and the number of steps can be reduced.

[0043]

BEST MODE FOR CARRYING OUT THE INVENTION In the invention described in claim 1 of the present invention , a heat insulating material is foamed between an outer box made of steel plate and an inner box made of resin.
A refrigerator body composed of a heat insulating wall formed by filling,
A cooler provided in the lower part of the refrigerator body, and the refrigerator
Behind the cooler, which is joined to the outer box at the lower back of the body
Machine made from steel plate from the bottom to the bottom of the refrigerator body
Offset the room panel and the center of the width of the refrigerator body horizontally.
The machine room panel in the
The surface of the complicated shape that has become
A machine room composed of parts and stored in the machine room
A compressor, and the compressor and the cooler
It was arranged side by side in the left-right direction with the heat insulation wall of the warehouse main body separated , and the ineffective space in the width direction of the conventional machine room became the cooler installation space, and the cooler installation height was lowered. The volume of the storage chamber is expanded by lowering it. In addition, almost one-dimensional shape
The shape is made of metal material such as iron plate,
It is difficult to mold a rough shape with a metal material.
Is easy, and can be formed by pressing with a conventional iron plate.
Since it can mold complex shapes that cannot be machined, it is an invalid space in the machine room
Can be eliminated and the mounting efficiency of the machine room can be improved.

As described above, the resin formed on the portion formed by the iron plate
If the recess is molded through the part formed in step 1, it will be costly.
Even if you look at it, it is more rational to mold it with steel plate such as iron plate,
If only the complicated parts are molded with resin, the total cost will be reduced.
And eliminates unnecessary space in the machine room.
You can

The invention according to claim 2 is an outer box made of a steel plate.
A cut formed by foaming and filling a heat insulating material between the inner box made of resin
A refrigerator body composed of a heat wall, and the inside of the refrigerator body
The cooler provided in the lower part and from the rear to the bottom of the cooler
Machine room panel made of resin, and the resin
Of the machine room panel made of steel from the center line of the width of the refrigerator body
The concave part formed by denting the shifted position and the concave part
A machine room composed of the above and a compression housed in the machine room
And a refrigerator including the compressor and the cooler.
It is arranged side by side with the heat insulating wall of the main body separated.
Yes, there is a compound that cannot be formed by conventional press working with an iron plate.
Since a rough shape can be molded, the void space of the machine room is eliminated.
The mounting efficiency of the machine room can be improved.

According to a third aspect of the present invention, in addition to the first aspect of the present invention, a resin enclosure is provided in the rear portion of the cooler, and the electronic control board is housed in the enclosure. The malfunction of the electronic control board due to the is suppressed.

According to a fourth aspect of the invention, in addition to the second aspect of the invention, a resin enclosure is integrally formed in the rear part of the cooler, and the electronic control board is made of resin in the enclosure. Since they are integrally fixed, the distance between the controlled parts such as the compressor and the electronic control board is shortened.

The invention described in claim 5 is the same as claim 3 or
In addition to the invention described in 4 , the electric parts are integrally fixed in the enclosure with resin, and the distance between the controlled parts such as the compressor and the electric parts is shortened.

According to a sixth aspect of the present invention, in addition to the fifth aspect of the invention, an electronic control board is provided inside and outside the resin enclosure.
Alternatively, a locking piece for locking the electric wiring connected to the electric component is integrally provided, and the electric wiring can be processed without the need to attach the locking piece of another component.

According to a seventh aspect of the present invention, in addition to the sixth aspect of the invention, a cutout portion is further provided in the resin enclosure, and the electric wiring is drained from the cutout portion to drain the electric wiring. Since the portion is formed, it is possible to prevent water from entering the enclosure along the electric wiring.

[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 sectional view of a refrigerator according to Example 1 of the present invention.
FIG. 2 is a perspective view of a main part from the back of the refrigerator of the embodiment. FIG. 3 is a front view of the main part of the lower part of the rear surface of the refrigerator of the same embodiment. FIG. 4 is a sectional view of a main part of the refrigerator.

1 to 4, reference numeral 50 denotes a refrigerator main body, which is constituted by a heat insulating wall 54 formed by foaming and filling a heat insulating material 53 between an outer box 51 made of a steel plate and an inner box 52 made of a resin. It Reference numeral 55 is a heat insulating partition wall that partitions the inside of the refrigerator main body 50 into upper and lower parts.
6. A vegetable compartment 57 is formed, and a freezing compartment 58 is formed below the compartment 57.

Reference numeral 59 is a rotary door attached to the refrigerating chamber 56. Reference numerals 60 and 61 are drawer type doors attached to the vegetable compartment and the freezer compartment, respectively. 62 is a storage container that is integrally drawn with the pull-out type door 60 of the vegetable compartment, 63 is a storage container that is pulled out integrally with the pull-out type door 61 of the freezer compartment 58, and 64 is an upper portion provided above the storage container. It is a storage container.

On the rear side of the freezing chamber 58, there is provided a cooling chamber 67 having a cooler 65 for the refrigeration cycle and a blower 66 arranged near the upper part of the cooler 65. Reference numeral 68 denotes a drain pipe that penetrates the heat insulating wall 54 at the bottom of the cooling chamber 67 and is led out to the outside. On the other hand, the freezer 5
A machine room 70 having a compressor 69 is provided on the other side of the rear of 8 with a heat insulating wall 54 therebetween.

The cooler 65 and the compressor 69 are arranged side by side in the left-right direction with the heat insulating wall 54 therebetween.

Reference numeral 71 is a bottom of the refrigerator main body 50, which is an evaporation tray for defrosting water disposed below the cooling chamber 67, and faces the opening of the drain pipe 68. Reference numeral 72 denotes a blower for cooling the compressor, which is provided between the compressor 69 and the evaporation tray 71 in the machine room 70. The compressor 69 and the evaporation tray 71 are disposed in the blower path of the blower 72. There is. Reference numeral 73 denotes an electric component cover of the compressor 69, which is arranged toward the rear open side of the machine room 70. Reference numeral 74 denotes a defrost heater provided below the cooler 65.

On the other hand, reference numeral 75 denotes an electric component storage portion provided in a recessed shape with a thermoplastic resin or the like behind the cooler 65 via the heat insulating wall 54, inside which the compressor 69 and the blower 7 are provided.
2. An electronic control board 76 for controlling controlled parts such as the defrost heater 74 is housed.

Further, the periphery of the electric component housing portion 75 is surrounded by an enclosure 77 in which a heat insulating material 53 is foam-filled. Notches 78 are provided on both sides of the enclosure 77, and the electronic control board 76 is disposed above the notches 78. The electric wires 79a and 79b are led out from the upper part of the machine room 70 behind the lower part of the refrigerator main body 50,
After being guided to the lower side adjacent to both sides of the enclosure 77, it is folded back into a substantially U shape at the cutout portion 78 and is then drained.
Since 0 is formed and connected to the electronic control board 76, it is possible to prevent water from entering the electronic control board 76 through the electric wirings 79a and 79b.

Further, the electric component storage portion 75 formed in the lower rear portion of the refrigerator main body 50, the enclosure 77, and the flat portion located above the compressor 69 are integrally formed over the bottom plate from which the drain pipe 68 projects. A machine room panel 81 is formed on the machine room panel, and is formed of a thermoplastic resin (for example, ABS). A part of the machine room panel 81 is laterally displaced from the center line of the refrigerator main body 50 so that the compressor 69 can be housed therein, and a recessed portion 82 is formed in the refrigerator main body 50 to have a half width. ing. The recessed portion 82 is adjacent to the cooler 65 via the heat insulating wall 54, and the cooler is not disposed above the compressor to form an ineffective space in the depth direction of the refrigerator as in the conventional case. The effective storage capacity in the refrigerator increases.

The heavy compressor 69 and cooler 6
Refrigerator body 5 by arranging 5 side by side
The center of gravity of 0 is lower than the center of gravity of the past, and stability is further increased.

Further, the electric component storage portion 75 and the enclosure 77
Is formed integrally with the machine room panel 81, and a locking piece 83 for wiring the electric wirings 79a and 79b and a rib 84 for guiding the electric wiring 79a so that the wiring is correctly carried out.
Is also integrally molded. In the case of the embodiment, the electric wiring 79
Reference character a is a wiring mainly for an electric component 85 such as an operating capacitor and a starting capacitor of the compressor 69 provided in the electric component housing 75, and an AC wiring.

The electric wiring 79b is wiring for electric components 85 of the room temperature sensor (not shown), the blower 66 and the damper device (not shown), and is a DC wiring.

A machine room cover 86 covers the opening of the machine room 70, and a flexible foam 87 or the like is attached to the part of the machine room cover 86 facing the enclosure 77.

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

Since the electronic control board 76 is enclosed by the enclosure 77 and is accommodated in the electric component accommodating portion 75 which is formed in a concave shape, the heat insulation effect of the heat insulation wall 54 causes the machine room 70.
Since the heat generated from the compressor 69 does not directly act in the inside, the temperature rise of the components mounted on the electronic control board 76 and the electrical components such as the capacitors stored in the periphery is reduced and reliability is improved. Increase. In particular, since the electric component housing portion 75 is not disposed immediately above the compressor 69, the effect of rising heat of the compressor is not directly exerted, and there is an effect of further suppressing the temperature rise of the electronic control board 76 and peripheral components.

Further, since the electronic control board 76 for driving and controlling the controlled parts is housed outside the refrigerator behind the cooler 65, the controlled parts such as the compressor 69, the blower 66, and the defrost heater 74 are connected. The distance will be close.
Therefore, the electric wires 79a and 79b can be shortened and simplified,
It is cheap and the work man-hour can be reduced.

In the electronic control board 76, the wiring for AC and that for DC are divided and the electric wirings 79a and 79b are enclosed.
By arranging the wires substantially parallel to each other through 7, it is possible to reduce the complicated wiring of the electric wires and reduce the influence of radio noise interference.

Further, since the enclosure 77 and the machine room cover 86 are configured so as to be sealed without a gap, it is possible to prevent water from being splashed on the electric component housing portion 75 through the machine room cover 86.

(Second Embodiment) FIG. 5 is a front view of a refrigerator according to a second embodiment of the present invention. FIG. 6 is a sectional view of a refrigerator according to a second embodiment of the present invention. FIG. 7 is a front view of the main part of the lower part of the back surface of the refrigerator in the second embodiment of the present invention. FIG. 8 is a sectional view of a main part of the refrigerator.

In FIGS. 5 to 8, reference numeral 88 denotes a refrigerator main body, which is constituted by a heat insulating wall 92 formed by foaming and filling a heat insulating material 91 between an outer box 89 made of a steel plate and an inner box 90 made of resin. It Reference numeral 93 is a heat insulating partition wall that partitions the inside of the refrigerator body 88 into upper and lower parts.
4, a vegetable compartment 95, a temperature switching compartment 96 capable of switching the temperature zone from freezing to refrigeration, and an ice making compartment 97 independent of the temperature switching compartment 96, and a freezing compartment 98 is formed in the lower part.

Reference numeral 99 is a rotary door attached to the refrigerating chamber 94, and 100, 101, 102 and 103 are a vegetable chamber 95, a temperature switching chamber 96, an ice making chamber 97 and a freezing chamber 98, respectively.
It is a pull-out door attached to. 104 is a storage container that is integrally drawn with the pull-out door 100 of the vegetable compartment 95, 105 is a storage container that is integrally drawn with the pull-out door 101 of the temperature switching chamber 96, and 106 is a pull-out type of the ice making chamber 97 An ice storage container that is drawn out integrally with the door 102 of the freezing chamber 107; a storage container 107 that is drawn out integrally with the drawer type door 103 of the freezing room 98;
Is an upper storage container provided above the storage container 107.

On the rear side of the freezing chamber 98, there is provided a cooling chamber 111 having a cooler 109 for the refrigeration cycle and a blower 110 arranged near the upper part of the cooler 109. Reference numeral 112 denotes a heat insulating wall 9 at the bottom of the cooling chamber 111.
It is a drainage pipe that penetrates 2 and is led out to the outside. On the other hand, on the other rear side of the freezer compartment 98, a machine compartment 114 having a compressor 113 is provided with a heat insulating wall 92 therebetween.

Then, the cooler 109 and the compressor 113
Are arranged side by side in the left-right direction with the heat insulating wall 92 therebetween.

Reference numeral 115 denotes a bottom of the refrigerator main body 88, which is an evaporation tray for the defrosted water arranged below the cooling chamber 111, and faces the opening of the drain pipe 112. Reference numeral 116 indicates a compressor 113 and an evaporating dish 115 in the machine room 114.
Is a blower for cooling the compressor provided between the compressor 11 and
3 and the evaporating dish 115 are arranged in the air passage of the blower 116. Reference numeral 117 denotes an electric component cover of the compressor 113, which is arranged toward the rear open side of the machine room 114. Reference numeral 118 denotes a defrost heater provided below the cooler 109.

On the other hand, reference numeral 119 denotes an outer box 89 made of a steel plate and a lower part of the rear surface of the refrigerator main body 88, which are joined by screws or the like.
It is a machine room panel made of a steel plate formed to the bottom of the refrigerator main body 88 via the heat insulating wall 92 behind the 09. Reference numeral 120 denotes an electrical component storage portion which is adhered with a heat insulating material 91 leaked from a predetermined position of the machine room panel 119 and is made of a thermoplastic resin (for example, ABS).

An electronic control board 121 for controlling controlled parts such as the compressor 113, the blower 116, and the defrosting heater 118 is housed inside the electric part housing part 120. The compressor 113 and the blower 11 are formed by an enclosure 122 formed integrally with 120.
It is divided into 6, etc.

Further, notches 123a and 123b are provided on both sides of the electric component storage portion 120, respectively.
The electronic control board 121 is provided above the cutout 123a. The electric wirings 124a and 124b are led out from the upper part of the machine room 114 behind the lower part of the refrigerator main body 88, and are folded back into a substantially L shape at the cutout part 123a to drain the water.
Since a is formed and is connected to the electronic control board 121 from the lower side with respect to the electronic control board 121, it is possible to prevent water from passing through the electric wiring 124a and entering the electronic control board 121. Has become.

Further, the electric wiring 1 is formed in the cutout portion 123b.
24b is folded back at an acute angle to form a draining portion 125b, which is guided to and connected to the electronic control board 121.

Further, a resin rib 126 for guiding the electric wiring 124a so as to be locked is provided on one side of the electric component housing portion 120, and the locking piece 12 for locking and fixing the wiring.
7 is integrally molded.

Further, the electric wiring 124b is the enclosure 122.
After the water draining portion 125b is formed by the notch portion 123b provided integrally with the water draining portion 125b, the wiring is locked by the locking piece 127 provided above the water draining portion 125b.

In the case of the embodiment, the electric wiring 124a is wiring mainly for driving the interior lamp (not shown), the heater 118, and the compressor 113, and is AC wiring.

Further, the electric wiring 124b is wiring for a room temperature sensor (not shown), the blower 67 and a damper device (not shown), and is a DC wiring.

As described above, since the electronic control board 121 is provided above the notch 123a, water does not enter the electronic control board 121 along the electric wiring 124a. Further, since the locking piece 127 is provided above the cutout portion 123b, the electric wiring 124b is connected to the locking piece 127b.
Is the highest position at the point of
It does not enter inside.

Further, a part of the machine room panel 119 is laterally displaced from the center line of the refrigerator main body 88 so that the compressor 113 can be housed therein, and the recess 128 is formed in a size approximately half the width of the refrigerator main body 88. Has been formed. The recess 128
Since the corner portion 129 has a complicated shape, it is difficult to form it by press working. Therefore, panels made by injection molding of thermoplastic resin are used.

Further, reference numeral 130 is an electric component housing cover for covering the opening of the electric component housing 120 and fixing a predetermined position with a screw or the like. Reference numeral 131 is a machine room cover that further covers the rear opening of the machine room 114 and the electrical component housing cover 130.

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

By forming the machine room panel 119 by combining the steel plate and the resin material, it is possible to further reduce the ineffective space around the machine room and increase the effective storage volume in the compartment. .

Further, since the electric component housing portion 120 is adhesively fixed by the heat insulating material 91 leaking from the predetermined position of the machine room panel 119, the cost can be reduced by reducing the number of parts to be attached.

Further, by dividing the wiring for AC and the wiring for DC in the electronic control board 121 and wiring the electric wirings 124a and 124b substantially in parallel, the complicated wiring of the electric wirings is reduced, and the radio noise interference etc. The effect of can be reduced.

Further, since the opening of the electric component storage section 120 is covered with the electric component storage section cover 130, dust or water entering through the opening (not shown) provided in the machine chamber cover 131, or the machine room. It is possible to protect the electronic control board 121 from dust or the like that is mixed together with the air sucked into 114.

Further, at the time of process inspection or service work, especially when the compressor 113 is an inverter, a driving voltage of about 280 V is applied, and therefore, there is a risk of electric shock if the electronic control board 121 is touched. Therefore, the electronic control board 12
The safety can be further enhanced by covering 1 with the electric component housing cover 130.

[0093]

As described above, according to the first aspect of the invention , the heat insulating material is generated between the outer box made of steel plate and the inner box made of resin.
Refrigerator body composed of heat-insulating wall formed by foam filling
And a cooler provided in the lower part of the refrigerator body,
The lower part of the back of the warehouse body is joined to the outer box
Made from steel plate forming from the rear to the bottom of the refrigerator body
Beside the machine room panel and the center line of the width of the refrigerator body
The machine room panel is dented in the shifted position, and it has multiple planes.
The surface of a complicated shape with overlapping
Machine room composed of recesses and stored in the machine room
The compressor and the cooler.
Place the heat insulation walls of the refrigerator body side by side in the left-right direction.
Thus, it is possible to provide a refrigerator in which the mounting efficiency of the machine room is increased and the effective internal volume of the refrigerator is increased. It is also cheap and
A complex machine room shape can be formed.

The invention described in claim 2 is an outer box made of a steel plate.
A cut formed by foaming and filling a heat insulating material between the inner box made of resin
A refrigerator body composed of a heat wall, and the inside of the refrigerator body
The cooler provided in the lower part and from the rear to the bottom of the cooler
Machine room panel made of resin, and the resin
Of the machine room panel made of steel from the center line of the width of the refrigerator body
The concave part formed by denting the shifted position and the concave part
A machine room composed of the above and a compression housed in the machine room
And a refrigerator including the compressor and the cooler.
The heat insulating walls of the main body are arranged side by side in the left-right direction, and it is possible to form a more complex and multi-faceted space than without the ineffective space.

According to a third aspect of the present invention, in addition to the first aspect of the invention, a resin enclosure is provided in the rear part of the cooler and the electronic control board is accommodated in the enclosure. It can be realized at low cost.

According to a fourth aspect of the present invention, in addition to the second aspect of the invention, a resin enclosure is integrally provided in the rear portion of the cooler, and the electronic control board is integrally formed with resin in the enclosure. Since it is fixed, a structure that can eliminate interference such as radio noise can be realized at low cost.

The invention described in claim 5 is the same as claim 3 or
In addition to the invention described in 4 , the electric parts are integrally fixed in the enclosure with resin, so that the electric parts can be organized with good workability.

According to a sixth aspect of the present invention, in addition to the fifth aspect of the invention, an electronic control board is provided inside and outside the resin enclosure.
Alternatively, a locking piece for locking the electric wiring connected to the electric component is integrally provided, and the wiring can be organized with good workability.

The invention described in claim 7 is the same as that described in claim 6.
In the present invention, a notch portion is further provided in the resin enclosure, and the drainage portion of the electric wiring is formed by leading out the electric wiring from the notch portion, which provides a refrigerator with high safety against intrusion of water. it can.

[Brief description of drawings]

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

FIG. 2 is a perspective view of a main part from the back of the refrigerator according to the embodiment.

FIG. 3 is a front view of a main part of a lower rear portion of the refrigerator according to the embodiment.

FIG. 4 is a sectional view of a main part of the refrigerator according to the same embodiment.

FIG. 5 is a front view of a refrigerator according to a second embodiment of the present invention.

FIG. 6 is a sectional view of a refrigerator according to a second embodiment of the present invention.

FIG. 7 is a front view of the main part of the lower rear portion of the refrigerator according to the embodiment.

FIG. 8 is a sectional view of the essential part of the refrigerator according to the embodiment.

FIG. 9 is a cross-sectional view of a refrigerator showing Conventional Example 1.

FIG. 10 is a perspective view of the back of the refrigerator.

FIG. 11 is a sectional view of a refrigerator of Conventional Example 2.

FIG. 12 is a perspective view of a refrigerator of Conventional Example 3.

[Explanation of symbols]

50 Refrigerator body 65 Cooler 69 compressor 70 Machine room 75 Electrical component storage 76 Electronic control board 77 Fence 78 Notch 79a, 79b Electric wiring 80 Drainer 81 recess 82 Locking piece 84 electrical components 88 Refrigerator body 109 cooler 113 compressor 114 Machine room 120 electrical component storage 121 Electronic control board 122 enclosure 123a, 123b Notch 124a, 124b electrical wiring 125a, 125b drainer 126, 127 locking piece 128 recess

─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Noriaki Tanaka, 4-2-5 Takada Hondori, Higashi-Osaka City, Osaka Prefecture Matsushita Refrigerating Machinery Co., Ltd. (56) Reference JP-A-10-238924 (JP, A) Kaihei 10-318653 (JP, A) JP 7-63468 (JP, A) JP 9-113127 (JP, A) JP 7-270053 (JP, A) Actual 60-116191 ( (58) Fields investigated (Int.Cl. ⁷ , DB name) F25D 19/00 520

Claims (7)

(57) [Claims] 1. A disconnection between a steel outer box and a resin inner box.
Refrigeration composed of heat-insulating walls formed by foaming and filling heat material
A refrigerator body, a cooler provided in the lower portion of the refrigerator body,
The lower part of the back of the refrigerator body is joined to the outer box to cool the refrigerator.
Steel forming from the rear of the container to the bottom of the refrigerator body
The machine room panel made of plate and the center line of the width of the refrigerator body.
Dent the machine room panel in a position that is laterally displaced, and
The surface of a complicated shape where multiple planes overlap is a recess made of resin.
And a machine room constituted by the recess, and the machine room
The compressor and the cooler
Side by side with the insulation wall of the refrigerator body separated
A refrigerator characterized by being placed. 2. A disconnection between a steel outer box and a resin inner box.
Refrigeration composed of heat-insulating walls formed by foaming and filling heat material
A refrigerator body, a cooler provided in the lower portion of the refrigerator body,
Resin integrally formed from the rear to the bottom of the cooler
Machine room panel made of, and the machine room panel made of the resin
Depress the position shifted laterally from the center line of the width of the refrigerator body.
And the machine room composed of the recess
And a compressor housed in the machine room,
The compressor and the cooler are separated by the heat insulating wall of the refrigerator body.
A refrigerator characterized by being arranged side by side in the left-right direction. 3. A contractor characterized in that a resin enclosure is provided at a rear portion of the cooler and an electronic control board is housed in the enclosure.
The refrigerator according to claim 1 . 4. The refrigerator according to claim 2 , wherein a resin enclosure is integrally formed at a rear portion of the cooler, and the electronic control board is integrally fixed with the resin in the enclosure. 5. The refrigerator according to claim 3 , wherein the electric components are integrally fixed with resin in the enclosure. 6. The electronic control board walk in and out of the resin enclosure
The refrigerator according to claim 5, characterized in that provided integrally locking piece for locking the electrical wiring connected to the electrical component. 7. The refrigerator according to claim 6 , wherein a cutout portion is provided in the resin enclosure, and the drainage portion of the electric wiring is formed by leading out the electric wiring from the cutout portion.