JP2015190716A - Refrigerator case - Google Patents

Abstract

[PROBLEMS] To secure rigidity against an external load while expanding an internal volume of a refrigerator.
A refrigerator housing formed of a plurality of panels having an outer panel element and an inner panel element and having an opening on one side thereof, the surface facing the outer panel element of the inner panel element forming the opening. The inner reinforcing member 24 is attached to the inner side.
[Selection] Figure 2

Description

  The present invention relates to a refrigerator casing.

  2. Description of the Related Art Conventionally, a refrigerator housing that is configured by combining an inner box and an outer box and has an opening is known.

  In this type of refrigerator case, the opening side tends to be deformed when an external force is applied. However, the refrigerator case shown in Patent Document 1 is provided with a reinforcing material on the inner side of the top plate of the outer box. The material is configured to prevent deformation against an external force.

  By the way, in order to expand the internal volume of the refrigerator without changing the outer diameter of the refrigerator, it is necessary to thin the heat insulating wall of the refrigerator housing.

  However, in the conventional configuration in which the reinforcing material is simply attached to the inside of the outer box, the rigidity is lowered with the above-described thinning of the heat insulating wall, and the deformation on the opening side due to an external load cannot be prevented. Occurs.

JP 2000-266458 A

  Therefore, the present invention has been made to solve the above-described problems, and its main problem is to ensure rigidity against external load while expanding the internal volume of the refrigerator.

Here, conventionally, as described above, the rigidity is increased by attaching the reinforcing material to the outer box, and when the reinforcing material is attached to the inner box, the heat in the warehouse faces the outside via the reinforcing material. It was transmitted to the outer box, cooling efficiency was lowered, and it was thought that the outer box was cooled to cause dew condensation. For this reason, until now, there was no technical common sense to attach a reinforcing material to the inner box.
For this technical common sense, the inventor of the present application has made a thorough examination, and as a result of trial and error, it is possible to suppress the heat transfer from the inside to the outside while ensuring the rigidity against the load from the outside. I found.

  That is, the refrigerator casing according to the present invention is a refrigerator casing that is formed of a plurality of panels having an outer panel element and an inner panel element, and that has an opening on one side thereof, and the outer side of the inner panel element that forms the opening. An inner reinforcement is attached to the surface facing the panel element.

According to the refrigerator casing configured in this way, the inner reinforcement member is attached to the surface of the inner panel element facing the outer panel element, so that rigidity against an external load can be ensured compared to the conventional case. Heat transfer from the inside of the storage to the outside of the storage can be suppressed.
Specifically, when a diagonal load is applied to the refrigerator case, the load will concentrate on the corners of the refrigerator case, but because the inner reinforcement is attached to the inner panel element, Since this inner side reinforcement material functions as a rib which reinforces a corner | angular part, the rigidity of a refrigerator housing | casing can be ensured.
Thereby, even if it makes a panel thin, the rigidity of a refrigerator housing | casing is fully ensured and the internal volume of a refrigerator housing | casing can be expanded, without changing the outer diameter dimension of a refrigerator housing | casing.

It is preferable that the inner reinforcing material is attached to the inner panel element without contacting the outer panel element.
If this is the case, a gap is formed between the inner reinforcing member and the outer panel element, so that the heat in the warehouse is prevented from being transferred to the outer panel element via the inner reinforcing member, thereby preventing the cooling efficiency from being lowered. Can do.
Moreover, it can suppress that heat is transmitted in the store | warehouse | chamber via an inner side reinforcement material from the outer side panel element which faces the exterior, and it can prevent that dew condensation generate | occur | produces in an outer box.

It is preferable that the inner reinforcing member has an attachment portion that is attached to a surface of the inner panel element facing the outer panel element, and an extension portion that extends from the attachment portion toward the outer panel element.
If it is this, rigidity can be improved by providing an extension part compared with the reinforcing material which makes flat form.

It is preferable that the attachment portion is provided from the opening side to the opposite back side, and the extension portion is provided on the opening side of the attachment portion.
If it is this, the rigidity of the opening side which is easy to deform | transform when the force from the outside is added can be improved more.

  As a specific embodiment, the inner panel element has an inner wall portion facing inside the warehouse, and an inner flange portion provided at an opening side end portion of the inner wall portion and protruding toward the outer panel element. The outer panel element is provided at an outer wall portion facing the outside of the warehouse, and an opening-side end portion of the outer wall portion, and protrudes toward the inner panel element to be fitted to the inner flange portion. And the extension part extends along the inner flange part.

It is preferable that an outer reinforcing material is attached to a surface of the outer panel element that forms the opening and faces the inner panel element.
If it is this, the rigidity of a refrigerator housing | casing can be raised more.

  With such a configuration, it is possible to secure rigidity against an external load while expanding the internal volume of the refrigerator.

It is a perspective view which shows the structure of the refrigerator housing | casing which concerns on embodiment of this invention. It is a plane sectional view showing composition of a side panel of a refrigerator case. It is side surface sectional drawing which shows the structure of the partition panel of a refrigerator housing | casing. It is a top sectional view showing composition of a side panel of a refrigerator case concerning this modification 1. It is a plane sectional view showing the composition of the side panel of the refrigerator case concerning this modification 2. It is a plane sectional view showing the composition of the partition panel of the refrigerator case concerning this modification 3.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. It should be noted that the following description of the preferred embodiment is merely illustrative in nature and is not intended to limit the present invention, its application, or its use. In each figure, the up / down and front / rear / left / right directions are indicated by arrows. Unless stated otherwise, the vertical direction will be described according to the directions indicated by these arrows.

  As shown in FIG. 1, the refrigerator housing 10 is configured such that a resin-made inner panel element 21 and a metal-made outer panel element 25 are combined and the front is opened. Specifically, the refrigerator housing 10 includes a ceiling panel 11, a bottom panel 12, and a back surface, in which a heat insulating material 15 is filled between an inner panel element 21 that is an inner box and an outer panel element 25 that is an outer box. A panel 13, a pair of left and right side panels 20, and a partition panel 30 are provided. The interior S of the refrigerator housing 10 is partitioned into two upper and lower stages by a partition panel 30. In addition, below, although the internal structure of the side panel 20 is demonstrated, the ceiling panel 11 and the bottom panel 12 shall have the same internal structure, and description is abbreviate | omitted.

  FIG. 2 is a plan sectional view showing the configuration of the side panel 20 of the refrigerator housing 10. As shown in FIG. 2, the inner panel element 21 of the side panel 20 extends along the inner wall 22 facing the interior S, the peripheral edge of the inner wall 22 on the housing opening side, and toward the outer panel element 25. And a projecting inner flange portion 23. The inner flange portion 23 is provided with a bulging portion 23a that is bent so that a portion of the inner flange portion bulges.

  The outer panel element 25 of the side panel 20 extends along an outer wall portion 26 facing the outside of the cabinet, and a peripheral edge of the outer wall portion 26 on the housing opening side and protrudes toward the inner panel element 21 and fits into the inner flange portion 23. And an outer flange portion 27 to be joined. The outer flange portion 27 is formed in a concave cross section that opens toward the inner panel element 21 side by bending the front end portion of the outer wall portion 26.

  Here, the opening width of the outer flange portion 27 becomes narrower toward the inner panel element 21 side. Therefore, by pushing the bulging portion 23a of the inner flange portion 23 into the recess of the outer flange portion 27, the inner flange portion 23 is fitted into the outer flange portion 27, and the side panel 20 can be assembled. An internal space 20 a is formed inside the side panel 20. The internal space 20a is filled with a heat insulating material 15 such as a vacuum heat insulating material made of urethane, for example.

  A refrigerant pipe 14 is disposed in the gap between the bulging portion 23 a of the inner flange portion 23 and the outer flange portion 27. Further, the refrigerant pipe 14 is also disposed on the inner space 20 a side of the outer wall portion 26. A high-temperature refrigerant flows through the refrigerant pipe 14 so that condensation does not occur in the outer panel element 25 due to the heat of the high-temperature refrigerant.

  And in this embodiment, as shown in FIG. 2, the inner side reinforcement material 24 is attached to the surface which faces the outer side panel element 25 in the inner side panel element 21. As shown in FIG.

  The inner reinforcing member 24 of the present embodiment is disposed without contacting the outer panel element 25, that is, with a gap with respect to the outer panel element 25, specifically, the outer panel in the inner panel element 21. It has the attaching part 24a attached to the surface which faces the element 25, and the extension part 24b extended toward this outer side panel element 25 from this attaching part 24a.

  More specifically, the inner reinforcing member 24 is attached to the surface of the inner wall portion 22 on the inner space 20a side, and the attachment portion 24a extends from the opening side to the opposite back side (in the present embodiment, from the front side). The extending portion 24b is provided along the inner flange portion 23 substantially perpendicularly from the opening side of the mounting portion 24a.

More specifically, the inner reinforcing member 24 of the present embodiment is a metal plate having an L-shaped cross section in which a front end portion on the opening side is bent toward the internal space 20a.
In the present embodiment, the distance between the inner panel element 21 and the outer panel element 25 is 25 mm, and the extending portion 24b is 3 mm.

  Moreover, in this embodiment, as shown in FIG. 2, the outer side reinforcement material 28 is attached to the surface which faces the inner side panel element 21 in the outer side panel element 25. As shown in FIG.

  The outer reinforcing member 28 of the present embodiment is disposed in contact with the inner panel element 21 without being in contact with the inner panel element 21 as in the case of the inner reinforcing member 24. This is a metal plate having an L-shaped cross section bent at the inner space 20a side.

  FIG. 3 is a side sectional view showing the configuration of the partition panel 30 of the refrigerator housing 10. As shown in FIG. 3, the partition panel 30 includes a partition outer panel element 31 that faces the outside of the warehouse, and a partition inner panel element that extends so as to face the interior S continuously from the upper and lower end edges of the partition outer panel element 31. 32. The partition outer panel element 31 and the partition inner panel element 32 are integrally formed of a resin material, and an internal space 30 a is formed inside the partition panel 30. The internal space 30a is filled with a heat insulating material 15 such as a vacuum heat insulating material made of urethane, for example. A part of the front surface of the partition outer panel element 31 is covered with a metal reinforcing plate 33. In the gap between the partition outer panel element 31 and the reinforcing plate 33, a refrigerant pipe 14 through which a high-temperature refrigerant flows is disposed.

  On the front surface of the refrigerator housing 10, an opening / closing door 16 that closes and opens the opening is provided. A packing material 17 is attached to the rear surface of the opening / closing door 16. When the open / close door 16 is closed, the packing material 17 is in close contact with the front surface of the partition panel 30.

And in this embodiment, the partition inner side reinforcement material 34 extended along the partition outer side panel element 31 in the vicinity of the partition outer side panel element 31 is attached to the surface at the side of the internal space 30a in the partition inner side panel element 32.
In more detail, the partition inner side reinforcing member 34 has a front end portion bent toward the inner space 30a side to have an L-shaped cross section, and is disposed with a gap with respect to the partition outer panel element 31. Yes.
More specifically, the partition inner side reinforcing member 34 is formed by bending a metal plate, and the partition mounting part 34a attached to the partition inner panel element 32 and the front end of the partition mounting part 34a toward the inner space 30a side. The partition extending portion 34b extending substantially vertically and the partition bent portion 34c bent obliquely from the rear end of the partition mounting portion 34a toward the internal space 30a side.

  In this embodiment, a partition outer reinforcing member 35 extending along the partition outer panel element 31 is attached to the surface of the partition outer panel element 31 on the inner space 30a side. The partition outer side reinforcing member 35 is formed of a metal plate having a concave cross section in which both upper and lower ends are bent rearward. The partition outer reinforcing member 35 is disposed with respect to the partition inner panel element 32 via a gap.

Then, the test result which evaluated performance, such as rigidity of the refrigerator housing | casing 10 which concerns on this embodiment comprised as mentioned above, is shown in Table 1.

  From this test result, by attaching the inner reinforcement member 24 and the outer reinforcement member 28 as in the refrigerator case 10 according to the present embodiment, the rigidity is increased and the maximum displacement amount is reduced while the inner volume is increased. It can be seen that it is possible.

According to the refrigerator housing 10 according to the present embodiment configured as described above, it is possible to ensure rigidity against diagonal loads.
Specifically, when a diagonal load is applied to the refrigerator housing 10, the load concentrates on the corners of the ceiling panel 11 and the side panel 20 of the refrigerator housing 10, but the inner wall portion 22. Since the inner reinforcing member 24 is attached to the inner surface of this, the inner reinforcing member 24 functions as a rib that reinforces the corner, so that the rigidity of the refrigerator casing 10 can be ensured.
Thereby, even if the heat insulation wall comprised by the outer side panel element 25 and the inner side panel element 21 is made thin, the rigidity of the refrigerator housing | casing 10 can fully be ensured, and without changing the outer diameter dimension of the refrigerator housing | casing 10. The internal volume of the refrigerator housing | casing 10 can be expanded.

  In particular, since the extending portion 24b extends along the inner flange portion 23 from the opening side of the mounting portion 24a, the rigidity on the opening side that is easily deformed when a diagonal load is applied can be increased.

Moreover, since the clearance gap is provided between the outer side panel element 25 and the inner side reinforcement material 24, it is suppressed that the heat | fever of the inside S is transmitted to the outer side panel element 25 via the inner side reinforcement material 24, and cooling efficiency is improved. Decline can be prevented.
Furthermore, it is possible to prevent heat from being transferred from the outer panel element 25 facing the outside to the inside S via the inner reinforcing member 24, and to prevent condensation on the outer panel element 25.

  In addition, by providing the partition bent portion 34 c in the partition inner reinforcing member 34, the width of the partition inner reinforcing member 34 is sufficiently secured to increase rigidity, and the partition inner reinforcing member 34 contacts the partition inner panel element 32. The contact area can be reduced, and heat can be prevented from being transmitted to the interior S side via the partition inner reinforcing material 34.

  In addition, also in the partition panel 30, the rigidity of the refrigerator housing | casing 10 can be ensured with respect to a diagonal load by attaching the partition inner side reinforcement material 34 to the inner surface of the partition inner panel element 32. FIG. Further, since a gap is provided between the partition outer panel element 31 and the partition inner reinforcing member 34, heat is transferred from the partition outer panel element 31 facing the outside of the compartment to the interior S via the partition inner reinforcing member 34. This can suppress the occurrence of condensation on the partition outer panel element 31.

<< Modification 1 >>
FIG. 4 is a plan cross-sectional view showing the configuration of the side panel 20 of the refrigerator housing 10 according to the first modification. As shown in FIG. 4, the inner reinforcing member 24 is formed in a concave cross section in which both end portions in the front-rear direction are bent toward the inner space 20 a. Thereby, the rigidity can be further increased as compared with the inner reinforcing member 24 having an L-shaped cross section.

<< Modification 2 >>
FIG. 5 is a plan cross-sectional view showing the configuration of the side panel 20 of the refrigerator housing 10 according to the second modification. As shown in FIG. 5, the inner reinforcing member 24 includes an attachment portion 24a attached to the inner wall portion 22, and a bent portion 24c bent from the rear end portion of the attachment portion 24a toward the inner space 20a.

  Thus, by providing the bent portion 24 c in the inner reinforcing member 24, the inner reinforcing member 24 has a sufficient width dimension to increase rigidity and reduce the area where the inner reinforcing member 24 contacts the inner wall portion 22. It is possible to suppress heat from being transmitted to the interior S side via the inner reinforcing member 24.

<< Modification 3 >>
FIG. 6 is a side cross-sectional view illustrating the configuration of the partition panel 30 of the refrigerator housing 10 according to the third modification. As shown in FIG. 6, the partition inner reinforcing member 34 is further attached to the partition mounting portion 34a attached to the partition inner panel element 32, and after being bent from the rear end portion of the partition mounting portion 34a toward the inner space 30a. And a partition bent portion 34c bent rearward.

  As described above, by providing the partition bent portion 34 c in the partition inner reinforcing member 34, the partition inner reinforcing member 34 is sufficiently secured to increase the rigidity and the partition inner reinforcing member 34 is used as the partition inner panel element 32. It is possible to reduce the area in contact with the inner wall, and it is possible to prevent heat from being transmitted to the interior S side via the partition inner reinforcing material 34.

<< Other Embodiments >>
About the said embodiment, it is good also as following structures.

  In the present embodiment and the modified example, the configuration of the inner reinforcing member 24 has been described by exemplifying a configuration bent into an L-shaped cross section or a concave cross section. However, the configuration is not limited to this configuration, and sufficient rigidity can be secured. As long as it is, any shape may be used.

  Further, in the present embodiment and the modification, the form in which the inner reinforcing member 24, the outer reinforcing member 28, the partition inner reinforcing member 34, and the partition outer reinforcing member 35 are formed of a metal plate has been described. Any material may be used as long as it can secure sufficient rigidity. For example, these reinforcing materials may be formed using a composite material containing carbon fibers or a resin material containing glass fibers or the like and having high rigidity.

  Further, in the present embodiment, the configuration in which the inner panel member 21 is provided with the inner reinforcing member 24 and the outer panel member 25 is provided with the outer reinforcing member 28 has been described. The material 28 is not necessary, and only the inner reinforcing material 24 may be provided.

DESCRIPTION OF SYMBOLS 10 Refrigerator housing | casing 11 Ceiling panel 12 Bottom panel 20 Side panel 21 Inner panel element 22 Inner wall part 23 Inner flange part 24 Inner reinforcement 24a Attachment part 24b Extension part 24c Bending part 25 Outer panel element 26 Outer wall part 27 Outer flange part 28 Outer reinforcement 30 Partition panel 31 Partition outer panel element 32 Partition inner panel element 34 Partition inner reinforcement 34a Partition mounting part 34b Partition extension part 34c Partition folding part S Inside

Claims (6)

A refrigerator housing formed of a plurality of panels having an outer panel element and an inner panel element, and having an opening on one side,
A refrigerator casing, wherein an inner reinforcing material is attached to a surface of the inner panel element that forms the opening and faces the outer panel element.   The refrigerator casing according to claim 1, wherein the inner reinforcing member is attached to the inner panel element without contacting the outer panel element. The inner reinforcement is
A mounting portion attached to a surface of the inner panel element facing the outer panel element;
The refrigerator casing according to claim 1, further comprising an extending portion extending from the attachment portion toward the outer panel element. The mounting portion is provided from the opening side to the opposite back side,
The refrigerator case according to claim 3, wherein the extension portion is provided on an opening side of the attachment portion. The inner panel element has an inner wall facing the inside of the cabinet, and an inner flange provided at an opening side end of the inner wall and projecting toward the outer panel element,
The outer panel element includes an outer wall portion facing the outside of the warehouse, and an outer flange portion that is provided at an opening side end portion of the outer wall portion and protrudes toward the inner panel element to be fitted to the inner flange portion. Have
The refrigerator case according to claim 3 or 4, wherein the extension portion extends along the inner flange portion. The refrigerator casing according to any one of claims 1 to 5, wherein an outer reinforcing material is attached to a surface of the outer panel element that forms the opening and faces the inner panel element.