WO2016163026A1

WO2016163026A1 - Refrigerator

Info

Publication number: WO2016163026A1
Application number: PCT/JP2015/061230
Authority: WO
Inventors: 弘洋井ノ口; 祥花岡
Original assignee: 三菱電機株式会社
Priority date: 2015-04-10
Filing date: 2015-04-10
Publication date: 2016-10-13
Also published as: CN205536762U; JPWO2016163026A1; JP6465960B2

Abstract

Provided is a refrigerator wherein incomplete filling of foam insulation material between an inner box and the exterior is prevented and that has good insulating properties. A refrigerator comprises electric wiring (5) disposed in a space between an outer box (2) and an inner box (2), rear face vacuum insulation material (4) disposed in the space, and a foam insulation material that fills the space. The inner box comprises a chamfered portion (8) on a ridge where a side face and the rear face intersect. The rear face vacuum insulation material (4) is fixed along the rear face of the inner box and the chamfered portion (8), and the electric wiring (5) is disposed on the face on the outer box side of the rear face vacuum insulation material (4) that is fixed to the chamfered portion (8) of the inner box.

Description

refrigerator

The present invention relates to a refrigerator, and more particularly to the arrangement of electrical wiring.

A conventional refrigerator includes a main body that serves as a storage for food and the like, and a door that opens and closes on the front surface of the main body. The main body includes an outer box that configures the appearance of the refrigerator, and an inner box that is installed in the outer box and serves as a refrigerator storage. In the space between the outer box and the inner box, electrical wiring and a vacuum heat insulating material are arranged, and the remaining part of the space is filled with a foam heat insulating material.

For example, in the technique disclosed in Patent Document 1, the electrical wiring is fixed by providing a recess in a part of the inner box (for example, see FIG. 1 of Patent Document 1).

For example, in the technique disclosed in Patent Document 2, the electrical wiring has a groove shape formed at a corner portion where the back surface and the side surface of the inner box intersect, and is fixed thereto (for example, Patent Document 2). (See FIG. 1).

Japanese Patent Application Laid-Open No. 07-270061 JP 2006-162144 A

However, as in the technique disclosed in Patent Document 1, even when the electrical wiring is fixed by providing a recess in a part of the inner box, the foam insulation is spread between the inner box and the outer box. In order to do so, it is necessary to ensure a certain clearance (gap) in the flow path of the foam insulation. When electrical wiring is arranged in the inner box and a vacuum heat insulating material is arranged on the outer side thereof, a region with a narrow clearance is formed, and a portion where the foam heat insulating material cannot be fully rotated is generated, which causes a problem that the strength of the main body is weakened.

Moreover, like the technique currently disclosed by patent document 2, the recessed part is provided in the inner box back corner | angular part, and the electric wiring is being fixed there, The vacuum heat insulating material arrange | positioned on the back side of a refrigerator is carried out to an inner box Since it cannot arrange along the chamfering of a back corner part, since the distance of the vacuum heat insulating material of a back surface and the vacuum heat insulating material of a side surface becomes long, there existed a subject that the heat insulation performance of a refrigerator worsened.

The present invention has been made to solve the above-described problems, and arranges the vacuum heat insulating material along the chamfered portion where the back surface side and the side surface side of the inner box intersect, and flows when filling the foam heat insulating material. It aims at providing the refrigerator which can ensure the heat insulation performance of the refrigerator back side, ensuring the property.

Refrigerator according to the present invention, an outer box constituting an external part, an inner box installed in the outer box and serving as a storage, and an electrical wiring disposed in a space between the outer box and the inner box, In the refrigerator including a vacuum heat insulating material disposed in the space portion and a foam heat insulating material filled in the space portion, the inner box includes a chamfered portion at a ridge line where a side surface and a back surface intersect, and the vacuum The heat insulating material is fixed along the back surface and the chamfered portion of the inner box, and the electric wiring is the surface of the vacuum heat insulating material fixed to the chamfered portion of the inner box on the outer box side. Placed in.

According to the present invention, the vacuum heat insulating material is disposed along the chamfered portion where the back surface side and the side surface side of the inner box intersect, and the electric wiring is fixed to the outside thereof. Since it can arrange | position so that a roundabout may not be inhibited, a foaming heat insulating material can be filled without a gap between an inner box and an outer box. Also, by arranging the vacuum insulation on the back side along the chamfered portion where the back side and the side of the inner box intersect, the distance between the vacuum insulation on the side and the vacuum insulation on the back side is as close as possible. Therefore, the heat insulation performance can be improved.

1 is an external view of a refrigerator according to Embodiment 1. FIG. FIG. 2 is a diagram illustrating a vertical cross section (AA) of the refrigerator of FIG. 1. FIG. 2 is a diagram showing a horizontal cross section (BB) of the refrigerator in FIG. 1 and showing a back side portion. 3 is a rear perspective view of the refrigerator according to Embodiment 1. FIG. It is a figure showing the cross-sectional shape of the arrangement | positioning surface of the electrical wiring of the back surface vacuum heat insulating material of the refrigerator which concerns on Embodiment 1. FIG.

Embodiment 1 FIG.
The present embodiment will be described with reference to the accompanying drawings.
1 is an external view of a refrigerator according to Embodiment 1. FIG. The refrigerator includes a main body 10 serving as a storage for food and the like, and a door 11 that closes the front surface of the main body 10 and can be opened and closed. The door 11 is provided with a plurality of doors according to the specification of the refrigerator. In the present embodiment, the door 11 is provided with six doors 11a to 11f.
FIG. 2 is a view showing a vertical section (AA) of the refrigerator of FIG. The inside of the refrigerator main body 10 is divided into storage rooms. On the back side of the storage room at the lower part of the refrigerator (back side of the refrigerator), a cooler 14 for cooling each storage room, a blower 13 for sending air cooled by the cooler 14 to each storage room, and compression Machine 15 is provided. Moreover, the control board 12 is arrange | positioned at the back side of the storage room of the refrigerator upper part. The control board 12, the blower 13, the compressor 15, and the like are connected by an electric wiring 5 described later. The control board 12 performs various controls such as the internal temperature and the rotational speed of the compressor 15.

FIG. 3 is a diagram showing a horizontal cross section (BB) of the refrigerator according to the first embodiment, and is a diagram showing a back side portion.
The main body 10 includes an outer box 2 constituting the appearance of the refrigerator, and an inner box 1 that is installed in the outer box 2 and stores food and the like.
The outer box 2 includes a side sheet metal 2a and a back sheet metal 2b. In the space between the inner box 1 and the outer box 2 provided in the outer box 2, there are an electrical wiring 5, a side vacuum heat insulating material 3 disposed on the side of the space, and a rear side of the space. The back vacuum heat insulating material 4 arranged on the surface is disposed. Further, in the space portion, spaces other than the side surface vacuum heat insulating material 3, the back surface vacuum heat insulating material 4 and the electric wiring 5 are filled with foam heat insulating material. The refrigerator secures the heat insulation performance inside the main body 10 by the side surface vacuum heat insulating material 3, the back surface vacuum heat insulating material 4 and the foam heat insulating material arranged in the space.

In the outer box 2, the side vacuum heat insulating material 3 is fixed to the inner wall of the side sheet metal 2a. The side surface vacuum heat insulating material 3 is disposed with a gap between the inner box 1 and the side surface vacuum heat insulating material 3 so as to ensure fluidity when filling the foam heat insulating material.

In the inner box 1, a chamfered portion 8 is formed at a portion that becomes a ridge line where the side surface and the back surface intersect.
The back vacuum heat insulating material 4 is disposed along the back surface of the inner box 1 and the chamfered portion 8, and is fixed so as not to have a space with the inner box 1. A predetermined gap is provided between the back vacuum heat insulating material 4 and the back sheet metal 2b of the outer box 2 so as to ensure the fluidity of the foam heat insulating material when the foam heat insulating material is filled. An electrical wiring 5 is arranged on the surface on the outer box side of the back vacuum heat insulating material 4 fixed along the chamfered portion 8 of the inner box 1. The electrical wiring 5 is disposed with a predetermined gap between the electrical wiring 5 and the inner wall of the outer box 2 so that the fluidity of the foam heat insulating material can be secured when the foam heat insulating material is filled. In the present embodiment, for example, the electrical wiring 5 is arranged so as not to protrude from the back side of the back vacuum heat insulating material 4.

FIG. 4 is a rear perspective view of the refrigerator according to the first embodiment. In FIG. 2, the outer box 2 is omitted and shown, and the rear vacuum heat insulating material 4 and the electric wiring 5 are arranged in the inner box 1. The electric wiring 5 is fixed to the back surface vacuum heat insulating material 4 with an electric wiring fixing tape 6 so as not to move due to the foaming pressure of the foam heat insulating material.

In the prior art, the electric wiring 5 is arranged in the chamfered portion 8 of the inner box 1, and the vacuum heat insulating material cannot be arranged in the chamfered portion 8, and the side vacuum heat insulating material 3, the back surface vacuum heat insulating material 4, A distance was generated between the two, causing deterioration of the heat insulation performance.
However, as shown in the present embodiment, the rear vacuum heat insulating material 4 is also arranged in the chamfered portion 8 of the inner box 1 by arranging the electric wiring 5 on the outer box side surface of the rear vacuum heat insulating material 4. can do. Furthermore, the end surface 4a on the both side surfaces of the back surface vacuum heat insulating material 4 and the side surface vacuum heat insulating material 3 are arranged so as to overlap when viewed from the side surface side of the refrigerator. Thereby, the clearance gap between the side surface vacuum heat insulating material 3 and the back surface vacuum heat insulating material 4 becomes small, and it can be comprised so that the distance between the side surface vacuum heat insulating material 3 and the back surface vacuum heat insulating material 4 may become the minimum, The electrical wiring 5 can be arranged without deteriorating the heat insulation performance.

In addition, as shown in the present embodiment, by arranging the electrical wiring 5, a space necessary for filling the foam heat insulating material is secured, so that a space portion between the outer box and the inner box Since it is possible to make the foam heat insulating material wrap around at the time of filling while suppressing the small size, the volume of the refrigerator can be increased while suppressing the strength reduction of the refrigerator main body due to poor filling and the heat insulation performance.

FIG. 5 is a diagram showing a cross-sectional shape of the arrangement surface of the electric wiring 5 of the back vacuum heat insulating material 4 of the refrigerator according to the first embodiment. A concave shape (groove shape) for arranging the electric wiring may be provided in a portion where the electric wiring 5 of the back vacuum heat insulating material 4 is arranged.
With this shape, the electric wiring 5 is firmly fixed to the back surface vacuum heat insulating material 4, and it is possible to prevent the electric wire 5 from being released due to the flow when filling the foam heat insulating material.

1 inner box, 2 outer box, 2a side sheet metal, 2b back sheet metal, 3 side vacuum insulation, 4 back vacuum insulation, 4a end face, 5 electrical wiring, 6 electrical wiring fixing tape, 8 chamfer, 10 body, 11 door, 11a door, 11b door, 11c door, 11d door, 11e door, 11f door, 12 control board, 13 blower, 14 cooler, 15 compressor.

Claims

An outer box constituting the exterior part,
An inner box installed in the outer box and serving as a storage;
Electrical wiring disposed in the space between the outer box and the inner box;
A vacuum heat insulating material disposed in the space,
In a refrigerator comprising a foam heat insulating material filled in the space,
The inner box is
A chamfered part is provided on the ridgeline where the side and the back intersect,
The vacuum heat insulating material is
It is fixed along the back surface and the chamfered portion of the inner box,
The electrical wiring is
The refrigerator arrange | positioned on the surface by the side of the said outer box of the said vacuum heat insulating material fixed to the said chamfering part of the said inner box.
The vacuum heat insulating material is
The refrigerator according to claim 1, wherein the refrigerator has a groove shape for accommodating the electric wiring on a surface side on which the electric wiring is arranged.