WO2016157674A1

WO2016157674A1 - Refrigerator

Info

Publication number: WO2016157674A1
Application number: PCT/JP2016/000461
Authority: WO
Inventors: 浩貴松川; 洋一阿比留
Original assignee: パナソニックＩｐマネジメント株式会社
Priority date: 2015-03-27
Filing date: 2016-01-29
Publication date: 2016-10-06
Also published as: JP2016186379A

Abstract

This refrigerator has a refrigerator body configured so as to fill a foam insulation (112) between an outer case (110) and an inner case (111), the front opening edges of which have an outer case flange (119) and an inner case flange (118). The outer case flange (119) and the inner case flange (118) are connected in overlapping relation with each other. A radiating pipe (125) for dew condensation prevention is disposed on the inner surface of the inner case flange (118). The radiating pipe (125) is disposed on the inner surface of the inner case flange (118) so as to face the inner surface of the outer case flange (119) with the inner case flange (118) interposed therebetween.

Description

refrigerator

The present invention relates to a refrigerator. In particular, the present invention relates to a configuration that prevents condensation on the front surface of the main body of the refrigerator.

Generally, a refrigerator is provided with a heat-dissipation pipe for preventing condensation on the opening peripheral edge of the front surface of the refrigerator body, thereby preventing condensation from forming on the opening peripheral edge portion of the front surface of the refrigerator main body (see, for example, Patent Document 1).

FIG. 8 shows the refrigerator described in Patent Document 1. In FIG. 8, the lower side of the drawing is the front surface of the refrigerator. The refrigerator main body 11 is configured by filling and foaming a foam heat insulating material 14 between a metal outer box 12 and a resin inner box 13. A heat radiating pipe 16 also serving as a condenser is laid on the inner side of the front flange 15 of the outer box 11 serving as the peripheral edge of the front opening of the refrigerator main body 11.

The heat radiating pipe 16 is sandwiched between the front flange recess 17 of the inner box 13 fitted inside the outer box 12 and the front flange 15 of the outer box 12, and is pressed against the inner surface of the front flange 15 of the outer box 12. Yes.

With such a configuration, the front flange 15 of the outer box 12 is efficiently heated by the heat from the heat radiating pipe 16, and the occurrence of condensation can be prevented.

However, in the conventional configuration as described above, since the heat radiating pipe 16 is disposed so as to be in direct contact with the inner surface of the front flange 15 of the outer box 12, the surface of the front flange 15 is delicate depending on the state of the heat radiating pipe 16. Unevenness may occur.

That is, the heat radiating pipe 16 is not necessarily in a uniform perfect circle over the entire length of the heat radiating pipe 16, and there is an elliptical portion. The front flange 15 of the outer box 12 is affected by the influence (the influence caused by the shape of the heat radiating pipe 16 and the like), and fine irregularities are generated on the surface.

Since the front flange 15 of the outer box 12 is located on the front surface of the refrigerator main body 11 and is disposed at a place that is easily noticeable by the user, there is a problem that the design of the refrigerator is deteriorated.

Japanese Patent Laid-Open No. 3-255865

The present invention has been made in view of these points, and provides a refrigerator with improved design by preventing the occurrence of irregularities on the front flange of the outer box.

Specifically, the refrigerator according to an example of the embodiment of the present invention is a refrigerator main body configured by filling a foam heat insulating material between the outer box and the inner box. Each front opening edge has an outer box flange and an inner box flange, and these flanges are overlapped and joined to each other. Further, a heat radiating pipe for preventing condensation is disposed on the inner surface side of the inner box flange, and the heat radiating pipe is provided to face the inner surface of the outer box flange via the inner box flange.

With such a configuration, the flange of the inner box functions as a reinforcing plate, so that even if the heat radiating pipe is not a perfect circle, the flange of the outer box is not uneven, and the flatness of the outer box is increased. Can be improved.

It is a front view of the refrigerator in embodiment of this invention. It is sectional drawing of the refrigerator in embodiment of this invention. It is the perspective view which looked at the inner case of the refrigerator in embodiment of this invention from the front side. It is the perspective view which looked at the inner box of the refrigerator in embodiment of this invention from the back side. It is a disassembled perspective view of the inner box of the refrigerator in embodiment of this invention. It is a perspective view which shows the front plate connection part of the upper inner box and the lower inner box which comprise the inner box of the refrigerator in embodiment of this invention. FIG. 7 is a cross-sectional view taken along line 7-7 in FIG. 3 of the refrigerator main body in the refrigerator according to the embodiment of the present invention. It is sectional drawing which shows the conventional refrigerator.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments.

(Embodiment)
1 is a front view of a refrigerator according to an embodiment of the present invention, FIG. 2 is a sectional view of the refrigerator according to the embodiment of the present invention, and FIG. 3 is an inner box of the refrigerator according to the embodiment of the present invention. The perspective view seen from the front side is shown.

4 is a perspective view of the inner box of the refrigerator according to the embodiment of the present invention as seen from the back side, FIG. 5 is an exploded perspective view of the inner box of the refrigerator according to the embodiment of the present invention, and FIG. These show the perspective view which shows the front board connection part of the upper inner box and the lower inner box which comprise the inner box of the refrigerator of embodiment of this invention. FIG. 7 is a cross-sectional view taken along line 7-7 of FIG. 3 of the refrigerator main body in the refrigerator according to the embodiment of the present invention.

1 to 7, a refrigerator 100 according to an embodiment of the present invention has a plurality of compartments in a refrigerator main body 101 in which the inside and the outside are separated in a heat-insulated state. As shown in FIG. 2 and the like, the refrigerator 100 according to the present embodiment is partitioned into two storage rooms having different temperature zones. For example, the lower storage room 102 is a freezer and the upper storage room 103 is refrigerated. It is distinguished as a room.

The storage room 103, which is the upper refrigeration room, is set to a temperature at which food is not frozen, usually about 1 ° C to 5 ° C, and the storage room 102, which is the lower freezing room, is set to about -20 ° C. The temperature difference between the

storage chambers

102 and 103 is large.

A cooling chamber in which a cool air circulating fan 104 for circulating cool air in each of the

storage chambers

102 and 103, a cooler 105 for generating cool air, and the like are housed in the back of the lower storage chamber 102 serving as a freezing chamber. 106 is provided.

Here, the refrigerator main body 101 is configured by filling and foaming a foam heat insulating material 112 such as hard foam urethane between an outer box 110 made of a thin metal plate and an inner box 111 made of resin such as polystyrene, It is configured to block heat flowing from the outside atmosphere into the refrigerator main body 101.

The refrigerator 100 also has a first door 113 that opens and closes a storage chamber 102 that is a freezer compartment, and a second door 114 that opens and closes a storage chamber 103 that is a refrigerator compartment. Each

door

113, 114 is, for example, configured such that the right end is rotatably attached to the refrigerator main body 101 and is filled with hard foamed urethane.

As shown in FIGS. 3 to 5, the inner box 111 of the refrigerator main body 101 has a plurality of individual inner boxes, that is, a plurality of upper inner boxes 115 and lower inner boxes 116 arranged in the vertical direction to store in different temperature zones. A room, that is, a storage room 103 serving as a refrigerator room and a storage room 102 serving as a freezer room are provided. As shown in FIG. 3, the partition plate 117 that partitions the upper and

lower storage chambers

102 and 103 is configured by

opposing wall surfaces

115 a and 116 a of the upper inner box 115 and the lower inner box 116.

The upper inner box 115 and the lower inner box 116 have a front end flange 118c positioned at the front end of the

opposing wall surfaces

115a and 116a, of the upper inner box flange 118a and the lower inner box flange 118b provided at the respective opening edges. , 118d are connected and integrated by a metal front plate 120. The rear portions of the upper inner box 115 and the lower inner box 116 located behind the partition plate 117 are connected and fixed by a forward duct 121 and a return duct 122 for a cold air passage.

As shown in FIG. 7, the inner box 111 and the outer box 110 are joined by overlapping an inner box flange 118 and an outer box flange 119 provided at the opening edges of the inner box 111 and the outer box 110, respectively. Further, a heat radiation pipe 125 for preventing condensation is disposed inside the inner box flange 118. Further, as described above, the foam heat insulating material 112 is filled and foamed and integrated between the outer box 110 and the inner box 111.

As shown in FIG. 7, the outer box flange 119 of the outer box 110 has a double flange structure in which the outer box flange 119 is overlapped by folding its end part into a substantially U shape. In addition, an engagement recess 126 and an engagement portion 127 are formed by the end of the outer box flange 119 that is folded back in a substantially U shape.

On the other hand, as shown in FIG. 7, the inner box flange 118 of the inner box 111 is formed with a raised portion 128 raised on the back side of the refrigerator main body 101 and a concave portion 129 on which the heat radiating pipe is placed. The recessed portion 129 for placing the raised portion 128 and the heat radiating pipe is press-fitted into and coupled to the engaging recessed portion 126 formed in the flange 119 of the outer box 110. Further, the raised portion 128 has a width of the opening (recess opening width) of the recess of the engaging recess 126 of the outer box 110 (width in the vertical direction of the drawing in FIG. 7, that is, the front-rear direction (depth direction) of the refrigerator main body 101). The width dimension is slightly larger than the width.

The heat radiating pipe 125 is laid and disposed on the inner surface side of the recess 129 formed in the inner box flange 118 of the inner box 111, and faces the inner surface of the outer box flange 119 of the outer box 110 via the inner box flange 118 (recess 129). It is configured to

Further, the heat radiating pipe 125 is attached to the inner surface of the recess 129 of the inner box 111 with a metal tape 130 having good thermal conductivity such as aluminum. Further, the metal tape 130 is affixed so that a part 130 a thereof contacts the inner surface of the flange 119 of the outer box 110. In the present embodiment, the metal tape 130 is attached from the upper surface of the raised portion 128 of the inner box flange 118 to the surface of the heat radiating pipe 125, and further wraps around the tip of the inner box flange 118 to Attached to the vicinity of the end of the outer box flange 119 along the lower surface of the raised portion 128. Further, the metal tape 130 has three outer casing flanges 119 (engagement portions 127) near the end of the outer casing flange 119, near the recess 129 of the inner casing flange 118 of the inner box 111, and near the apex of the raised portion 128. ).

The

front end flanges

118c and 118d of the upper inner box 115 and the lower inner box 116 have a double flange structure similar to that of the outer box flange 119 at the upper and lower end edges of the front plate 120. A recess is press-fitted into

front end flanges

118c and 118d formed in the same shape as the inner box flange 118, and is connected and integrated.

Further, in the present embodiment, the above-described cool air circulation blower fan 104 is incorporated in the cool air passage forward duct 121 among the ducts connecting the rear portions of the upper inner box 115 and the lower inner box 116.

About the refrigerator 100 comprised as mentioned above, the operation | movement and an effect | action are demonstrated below.

The refrigerator 100 has a structure in which the heat radiating pipe 125 faces the inner surface of the outer box flange 119 of the outer box 110 via the inner box flange 118 of the inner box 111. With such a configuration, since the inner box flange 118 of the inner box 111 functions as a reinforcing plate, the flatness of the outer box flange 119 of the outer box 110 can be improved even if the heat radiating pipe 125 is not a perfect circle. That is, even if the heat radiating pipe 125 is not a perfect circle, the inner box flange 118 of the inner box 111 is not affected by the influence (the influence of the shape of the heat radiating pipe 125, etc.) on the outer box flange 119 of the outer box 110. Since it is the structure to reinforce, the flatness of the outer box flange 119 of the outer box 110 can be improved. Therefore, the flatness of the outer box flange 119 of the outer box 110 that enters the user's field of view when the first door 113 or the second door 114 is opened increases, and the quality of the refrigerator can be improved.

On the other hand, the heat radiating pipe 125 is affixed to the inner surface of the inner box flange 118 of the inner box 111 with a metal tape 130 having good thermal conductivity, and a part thereof is in contact with the outer box flange 119 of the outer box 110. With such a configuration, the heat of the heat radiating pipe 125 can be efficiently transferred to the outer box flange 119 of the outer box 110 via the metal tape 130. Therefore, even if the heat radiating pipe 125 is disposed opposite to the outer box flange 119 of the outer box 110 via the inner box flange 118 of the inner box 111, it is possible to reliably prevent the occurrence of condensation on the surface of the flange 119 of the outer box 110. it can. In particular, in the present embodiment, a metal tape is attached to the outer box flange 119 at three locations near the end of the outer box flange 119 of the outer box 110, near the recess 129 of the inner box flange 118, and near the apex of the raised portion 128. Since 130 is in contact, the heat of the heat radiating pipe 125 can be effectively transferred to the outer casing flange 119.

Moreover, in the present embodiment, the inner box flange 118 on which the heat radiating pipe 125 is arranged has a raised portion 128 that is wider than the recess width (recess opening width) of the engagement recess 126 of the outer box 110. It is press-fitted into the joint recess 126. With such a configuration, the portion where the heat radiating pipe 125 is attached is pressed against the inner surface of the outer box flange 119 of the outer box 110. Therefore, heat from the heat radiating pipe 125 can be efficiently transferred to the outer box flange 119 of the outer box 110 via the inner box flange 118 of the inner box 111, and dew condensation occurs on the outer box flange 119 of the outer box 110. The suppression effect can be enhanced.

As described above, the refrigerator 100 of the present embodiment has various effects, but also has the following advantages.

That is, the refrigerator 100 illustrated in the present embodiment is provided with a plurality of inner boxes (upper inner box 115 and lower inner box 116) to form a plurality of

storage chambers

102 and 103. The upper inner box 115 and the lower inner box A partition plate 117 is formed by opposing

wall surfaces

115a and 116a of the box 116. With such a configuration, the configuration of the refrigerator 100 can be simplified. That is, when a refrigerator compartment and a freezer compartment are partitioned and formed, a partition plate having a separate structure is incorporated in a single large inner box as in the prior art, and the refrigerator compartment and the freezer compartment are partitioned. There is no need to For this reason, since the separate partition plate is not required, the configuration can be simplified and the cost can be reduced.

Moreover, in the inner box 111, the rear portions of the upper inner box 115 and the lower inner box 116, which are behind the partition plate 117, are connected and fixed by a forward duct 121 and a return duct 122 for a cold air passage. With such a configuration, a highly rigid refrigerator 100 can be obtained even if the upper inner box 115 and the lower inner box 116 are simply connected together by the front plate 120. Therefore, when the inner box 111 is moved to be incorporated into the outer box 110 during the production process, the upper inner box 115 and the lower inner box 116 can be moved smoothly without causing torsional damage or the like. For this reason, the yield and productivity can be improved, and the cost can be reduced.

In addition, in the present embodiment, the cool air circulation fan 104 is incorporated in the forward duct 121 among the ducts connecting the rear portions of the upper inner box 115 and the lower inner box 116. With such a configuration, the duct and the cool air circulation fan 104 can be modularized and applied to various types of refrigerators 100, and the cost can be reduced by using the cool air circulation fan 104 in common. .

As mentioned above, although this invention has been demonstrated with the refrigerator 100 which is an example of embodiment, this invention is not limited to the said embodiment, A various change is possible within the range which achieves the objective of this invention. Needless to say. Therefore, it should be thought that embodiment mentioned above is an illustration and restrictive at no points. That is, the scope of the present invention is not limited to the above description, but is defined by the scope of the claims, and is intended to include all modifications within the meaning and scope equivalent to the scope of the claims.

As described above, the refrigerator 100 according to the example of the embodiment of the present invention includes the outer box 110 and the inner box 111, and the refrigerator main body in which the foam insulating material is filled between the outer box 110 and the inner box 111. 101. The outer box 110 and the inner box 110 have an outer box flange 119 and an inner box flange 118 at their front opening edges. The inner box flange 118 and the outer box flange 119 are overlapped and joined to each other, and a heat radiation pipe 125 for preventing condensation is disposed on the inner surface side of the inner box flange 118. The heat radiating pipe 125 is configured to face the inner surface of the outer box flange 119 of the outer box 110 via the inner box flange 118 of the inner box 111.

With such a configuration, since the inner box flange 118 functions as a reinforcing plate, the outer box flange 119 is not uneven even if the heat radiating pipe 125 is not a perfect circle. The degree can be improved.

Moreover, in the refrigerator 100 according to the example of the embodiment of the present invention, the outer box flange 119 is folded back into a substantially U shape in the outer box 110, and the engaging part 127 having the engaging recess 126 is formed. Good. The refrigerator 100 may have a structure in which the inner box flange 118 is press-fitted into the engagement recess 126 and the inner box flange 118 is press-contacted to the inner surface of the outer box flange 119 by the engagement portion 127.

With such a configuration, heat from the heat radiating pipe 125 provided on the inner surface of the inner box flange 118 is efficiently transferred to the outer box flange 119, and the effect of suppressing the occurrence of condensation on the surface of the outer box flange 119 is enhanced. Can do.

Further, in the refrigerator 100 according to the example of the embodiment of the present invention, the heat radiating pipe 125 is attached to the inner surface of the inner box flange 118 with the metal tape 130 having good thermal conductivity, and at least a part of the metal tape 130 is the outer box. You may be comprised so that the flange 119 may be contacted.

With such a configuration, heat from the heat radiating pipe 125 is efficiently transferred to the outer box flange 119 via the metal tape 130. Therefore, even if the heat radiating pipe 125 is disposed to face the outer box flange 119 via the inner box flange 118, it is possible to reliably prevent the occurrence of condensation on the surface of the outer box flange 119.

As described above, the present invention provides a refrigerator in which the flatness of the flange of the outer box is improved. Therefore, the design of the refrigerator can be improved and can be widely applied to commercial refrigerators as well as general ones.

101 Refrigerator body 102 Storage room (freezer room)
103 Storage room (refrigerated room)
104 Cooling air circulation fan 105 Cooler 106 Cooling chamber 110 Outer box 111 Inner box 112 Foam heat insulating material 113 First door 114 Second door 115 Upper inner box 116 Lower

inner box

115a, 116a Wall surface 117 Partition plate 118 Inner box flange 119 Outer box flange 118a Upper inner box flange 118b Lower

inner box flange

118c, 118d Front end flange 120 Front plate 121 Outward duct 122 Return duct 125 Radiation pipe 126 Engaging recess 127 Engaging portion 128 Raised portion 129 Recessed portion 130 Metal tape

Claims

While having an outer box and an inner box, a refrigerator main body configured by filling a foam heat insulating material between the outer box and the inner box,
The outer box and the inner box have an outer box flange and an inner box flange at respective front opening edges, and the outer box flange and the inner box flange are overlapped and joined to each other,
A refrigerator in which a heat radiating pipe for preventing condensation is disposed on the inner surface of the inner box flange, and the heat radiating pipe is provided to face the inner surface of the outer box flange via the inner box flange.
In the outer box, the outer box flange is folded back in a substantially U shape to form an engaging portion having an engaging recess, the inner box flange is press-fitted into the engaging recess, and the inner box flange is The refrigerator according to claim 1, wherein the refrigerator has a structure pressed against the inner surface of the outer casing flange by the engaging portion.
The refrigerator according to claim 1 or 2, wherein the heat radiating pipe is attached to the inner surface of the inner box flange with a metal tape having good thermal conductivity, and at least a part of the metal tape is in contact with the outer box flange.