JPH0560455A - Refrigerator - Google Patents

Abstract

PURPOSE:To improve heat resistance and heat dissipation of the periphery of a power source circuit unit, to increase a volume in a refrigerator, to facilitate assembling and to facilitate maintenance and inspection of the unit. CONSTITUTION:A power source circuit unit 25 is disposed on a ceiling plate 12a of an outer box 12 of a refrigerator body 11, and the unit 25 and the upper hinge 19 of a door 17 are coated with the same cover 29. And, leads 24 extended from an operation board 23 provided on the door 17 are wired in the door 17, extended upward through a hollow hinge shaft 21 to be connected to the power source board 26 of the unit 25.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a refrigerator having an improved location of a power supply circuit unit.

[0002]

2. Description of the Related Art In a conventional refrigerator, for example, as shown in FIG. 6, an electric equipment storage recess 2 is formed in the upper rear portion of a refrigerator body 1, and a power supply circuit unit 3 is arranged in the electric equipment storage recess 2. There is something. In this case, the operation unit 4 is provided on the front surface of the refrigerator body 1, for example, on the door 5, and is derived from the operation unit 4 in order to electrically connect the operation unit 4 and the power supply circuit unit 3. Lead wire 6
Is wired in the door 5 and is drawn out into the hinge cover 7 above the door 5. Then, the lead wire 8 derived from the power supply circuit unit 3 is wired inside the ceiling heat insulating wall of the refrigerator main body 1 and drawn out into the hinge cover 7, and in this hinge cover 7, the main body side lead wire 8 is closed to the door side lead wire. 6 through a connector 9.

[0003]

Since the power supply circuit unit 3 generates heat when energized, it is necessary to give sufficient consideration to heat dissipation. However, according to the above-mentioned conventional configuration, the electrical component storage recess 2 that stores the power supply circuit unit 3
In general, since it is partitioned by the plastic case 2a, it has a drawback that its heat resistance and heat dissipation are not so good.

Moreover, since the electric equipment storage recess 2 is formed on the back surface of the refrigerator body 1, the internal volume of the refrigerator is narrowed by the electric equipment storage recess 2, and at the time of maintenance and inspection of the power circuit unit 3, the refrigerator is opened. There is also a drawback in that maintenance and inspection work of the power supply circuit unit 3 is troublesome because it must be separated from the room wall. Furthermore, since the lead wire 8 derived from the power supply circuit unit 3 must be passed through the ceiling heat insulating wall of the refrigerator body 1, the wiring process is troublesome, and the plastic case 2a and the back for partitioning the electrical equipment storage recess 2 are separated. A troublesome urethane seal has to be applied to the joint with the plate 1a, so that the assembly work is generally troublesome and the manufacturing cost becomes high.

The present invention has been made in view of the above circumstances, and therefore an object thereof is to improve heat resistance and heat dissipation around the power supply circuit unit, and to increase the internal volume of the refrigerator and to facilitate the assembly. Another object of the present invention is to provide a refrigerator in which the maintenance and inspection of the power supply circuit unit is easy.

[0006]

In the refrigerator of the present invention, a power supply circuit unit is arranged on the top plate of the outer box of the refrigerator body, and the power supply circuit unit and the upper hinge of the door are collectively covered by the same cover. It was made to cover.

[0007]

According to the above construction, since the power supply circuit unit is arranged on the top plate of the outer box, the top plate of the outer box can be used as the heat dissipation plate of the power supply circuit unit and the lead wires can be used for the ceiling of the refrigerator body. It is not necessary to pass it through the heat insulating wall, and the internal volume of the storage is not narrowed by the power supply circuit unit. And even if you don't pull the refrigerator away from the wall,
By removing the cover that covers the power supply circuit unit, the power supply circuit unit can be maintained and inspected.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described below with reference to FIGS. The refrigerator body 11 is an outer box 1 made of steel plate.
2 is filled with a heat insulating material 14 between the inner box 13,
A refrigerating room 15, a freezing room 16, a vegetable room (not shown), etc. are provided in the interior thereof, and doors 17 and 18 are hinged to the front surfaces of the respective rooms (the upper part of the uppermost door 17 in FIG. 3). It is provided so as to be openable and closable via a hinge 19 only). The upper hinge 19 of the uppermost door 17 is fastened and fixed to the top plate 12a of the outer box 12 with a screw 20, and the door 17 is pivotally supported by the upper hinge 19 via a hollow hinge shaft 21.

An operation panel 22 is provided below the uppermost door 17, and an operation board 23 provided with various operation switch elements 23a is provided on the back side of the operation panel 22. The lead wire 24 led out from the operation board 23 is wired inside the door 17, and the hinge shaft 2 at the upper end of the door 17
It is pulled out on the top plate 12 a of the outer box 12 through the inside 1.

On the other hand, on the top plate 12a of the outer box 12, a power supply board 26 constituting a power supply circuit unit 25 is provided with a spacer 2
It is screwed horizontally via 7. This power board 2
6 is located in the vicinity of the upper hinge 19, and the connector 28 provided on the power supply board 26 is connected to the lead wire 24 passed through the hinge shaft 21 described above. A plastic cover 29, which covers the power supply circuit unit 25 and the upper hinge 19 together, is screwed onto the top plate 12a of the outer box 12.

According to the above configuration, the power supply circuit unit 25
Is arranged on the top plate 12a of the outer box 12, the steel plate top plate 12a of the outer box 12 can be used as a heat dissipation plate of the power supply circuit unit 25, and heat dissipation can be improved. The heat resistance and flame retardancy of the mounting side can be improved.

Moreover, since it is not necessary to pass the lead wire through the ceiling heat insulating wall of the refrigerator main body 11, the wiring process is facilitated. In addition, the power circuit unit 25 is the top plate 1 of the outer box 11.
Since it is arranged on the 2a, it is not necessary to form the electric equipment accommodating recessed portion in the refrigerator main body 11 unlike the conventional case, and the number of parts for disposing the power supply circuit unit 25 can be reduced and the power supply circuit unit 25 can be reduced. It is not necessary to apply a troublesome urethane seal to the installation space, and moreover, the power supply circuit unit 25 and the upper hinge 19 are integrated into the same cover 2
9 can be covered, and in combination with the above-mentioned circumstances, the number of parts can be reduced and the assembly efficiency can be improved, which can contribute to the reduction of the manufacturing cost.

Further, since the power source circuit unit 25 does not narrow the internal volume, the internal volume can be increased. Moreover, maintenance / inspection of the power supply circuit unit 25 can be performed by removing the cover 29 covering the power supply circuit unit 25 without pulling the refrigerator away from the wall of the room.
Maintenance and inspection work is also easy.

On the other hand, FIGS. 4 and 5 show the second embodiment of the present invention. The difference from the first embodiment is that the operation panel 30 is placed on the front surface of the cover 32 which covers the power supply circuit unit 31. It is in the point provided. Also in the second embodiment, the power supply circuit unit 31 is arranged on the top plate 12a of the outer box 12 and is covered with the cover 32 together with the upper hinge (not shown). The power supply circuit unit 31 of the second embodiment
The power supply board 33 also serves as an operation board.
Various operation switches 34 are provided at the front end of the.

According to the second embodiment, the same effect as that of the first embodiment can be obtained, and in addition, various operation switches 34 can be connected to the power supply board 33 without using lead wires. No wire wiring is required, and the assembly efficiency can be further improved.

The present invention is not limited to the above-described embodiments, and for example, an operation panel (operation board) may be provided on a portion other than the door 17 of the refrigerator body 11 (for example, the front end surface of the heat insulating wall). Various modifications such as “good” are possible.

[0017]

As is apparent from the above description, the present invention arranges the power supply circuit unit on the top plate of the outer box of the refrigerator body, and the power supply circuit unit and the upper hinge of the door are collectively covered by the same cover. Since it is covered with the outer box, the top plate of the outer box can be used to improve heat resistance and heat dissipation around the power supply circuit unit, the interior volume can be expanded, and the number of parts is small and assembly is easy. In addition, the power circuit unit can be maintained and inspected without pulling the refrigerator away from the wall of the room, and the maintenance and inspection can be easily performed.

[Brief description of drawings]

FIG. 1 is a vertical sectional side view of an upper portion of a refrigerator showing a first embodiment of the present invention.

FIG. 2 is a perspective view of the upper part of the refrigerator.

FIG. 3 is a perspective view around the power supply circuit unit shown with the cover removed.

FIG. 4 is a vertical sectional side view of an upper part of a refrigerator showing a second embodiment of the present invention.

FIG. 5 is a perspective view of the upper part of the refrigerator

FIG. 6 is a vertical sectional side view of the upper part of a refrigerator showing a conventional example.

[Explanation of symbols]

11 is a refrigerator main body, 12 is an outer box, 12a is a top plate, 13 is an inner box, 14 is a heat insulating material, 17 is a door, 19 is an upper hinge, 2
1 is a hinge shaft, 22 is an operation panel, 23 is an operation board, 2
Reference numeral 4 is a lead wire, 25 is a power supply circuit unit, 26 is a power supply board, 29 is a cover, 30 is an operation panel, 31 is a power supply circuit unit, 32 is a cover, and 33 is a power supply board.

Claims (1)

[Claims] 1. A refrigerator in which a door is provided on a front surface of a refrigerator main body through a hinge, wherein a power supply circuit unit is arranged on a top plate of an outer box of the refrigerator main body, and the power supply circuit unit and an upper hinge of the door are provided. The refrigerator is characterized in that the same cover is collectively covered.