JP6505352B2 - refrigerator - Google Patents

Description

  An embodiment of the present invention relates to a refrigerator.

  The refrigerator has an outer case made of steel plate and an inner case made of plastic, and a heat insulating member is disposed between the outer case and the inner case in order to secure the heat insulating performance. For example, Patent Document 1 discloses a heat insulating structure of a door device of a refrigerator. The inside of this door apparatus arrange | positions a vacuum heat insulating material, and the heat insulation performance of the door apparatus is acquired by filling foam polyurethane material by on-site foaming system (refer patent document 1).

Unexamined-Japanese-Patent No. 2006-90649

  By the way, since the heat insulating performance of the vacuum heat insulating material is higher than that of the foamed polyurethane material, the thickness formed by the outer case and the inner case of the refrigerator can be reduced by using the vacuum heat insulating material and the assemblability of the refrigerator is improves. By reducing the thickness of the refrigerator, the capacity inside the refrigerator inner box can be increased while maintaining the size of the refrigerator outer box, so the capacity of the refrigerator can be increased. However, it is difficult to secure the rigidity of the whole refrigerator using a vacuum heat insulating material.

  Therefore, if you try to increase the rigidity of the refrigerator by injecting the foamed polyurethane material into the gap while using the vacuum heat insulating material, the foamed polyurethane material adheres to the vacuum heat insulating material, so it is necessary to replace the vacuum heat insulating material. Can not replace the vacuum insulation material. Moreover, since a foaming polyurethane material is inject | poured into clearance gap, using a vacuum heat insulating material, the workability at the time of the assembly of a refrigerator is bad.

  The present invention has been made in view of the above, and it is an object of the present invention to increase the rigidity of a refrigerator while securing the heat insulating performance using a vacuum heat insulating material, and to improve the assembly workability. To provide a refrigerator that can

The refrigerator according to the embodiment of the present invention is a refrigerator having an outer case, an inner case disposed in the outer case, and a vacuum heat insulating material provided between the outer case and the inner case, A part of the corner of the outer box is formed by bending a belt-like steel plate, and a reinforcing member for enhancing the rigidity of the corner is arranged at the corner, and the longitudinal direction of the reinforcing member is In the direction perpendicular to the cross section of the outer box and the inner box , one of the intersecting outer faces of the reinforcing member abuts the ceiling face of the inner face of the outer box constituting the corner , and the other the outer surface has come into contact with the side surface portion of the outer case inner surface, and said reinforcing member is disposed in the depth direction of the corner portion over a range of at least the vacuum insulation material is placed It is characterized by

BRIEF DESCRIPTION OF THE DRAWINGS It is a perspective view which shows the whole refrigerator concerning 1st Embodiment of this invention. It is sectional drawing of the longitudinal direction in the AA of the main body of the refrigerator shown in FIG. Fig. 3 (A) is a development view of a metal plate constituting an outer case, and Fig. 3 (B) is a perspective view showing an outer case formed by bending the metal plate shown in Fig. 3 (A). It is a figure which shows the cross-sectional example of a reinforcement member shown in FIG. It is a figure which shows 2nd Embodiment and 3rd Embodiment of this invention. It is a figure which shows 4th Embodiment and 5th Embodiment of this invention. It is a figure which shows 6th Embodiment of this invention. It is a figure which shows 7th Embodiment and 8th Embodiment of this invention. FIG. 18 is a view showing a ninth embodiment and a tenth embodiment of the present invention. FIG. 7 shows another embodiment of the present invention. It is a figure which shows the example of the manufacturing method of other embodiment of this invention.

  Hereinafter, a mode for carrying out the present invention (hereinafter referred to as an embodiment) will be described using the drawings.

First Embodiment
FIG. 1 is a perspective view showing the whole of a refrigerator 1 according to a first embodiment of the present invention.

  The refrigerator 1 shown in FIG. 1 has a main body 2. At the position of the top of the main body 2, a refrigerator compartment 5 is provided which is opened and closed by double-opening type right and left non-smoking doors (turning doors) 3 and 4. These Kannon doors 3 and 4 are mounted so as to be openable and closable about the rotation shafts 3A and 4A of the main body 2, respectively.

  Below the refrigerator compartment 5, a vegetable compartment 7 which is opened and closed by a drawer type door 7a is provided. Below the vegetable compartment 7, an icemaker 8 and an upper freezer compartment 9 are provided side by side in the lateral direction. The ice making chamber 8 is opened and closed by the drawer door 8a, and the upper freezing chamber 9 is opened and closed by the drawer door 9a.

  At the lowermost portion of the main body 2 and below the ice making chamber 8 and the upper freezing chamber 9, a main freezing chamber 10 is provided. The main freezer compartment 10 is opened and closed by a drawer type door 10a. Concave handles 3 b and 4 b for hooking a finger are provided in the lower part of the Kannon doors 3 and 4 inside the doors. Concave handles 7b, 8b, 9b, and 10b for hooking fingers are provided on the upper portions of the drawer-type doors 7a, 8a, 9a, and 10a, respectively.

  FIG. 2 is a longitudinal cross-sectional view of the main body 2 of the refrigerator 1 shown in FIG.

  The main body 2 of the refrigerator 1 shown in FIG. 2 includes an outer case 11, an inner case 12, and a plurality of vacuum heat insulating materials 30, 31, 32, 33 provided between the outer case 11 and the inner case 12; There are provided reinforcing members 40 respectively provided at four corners C between the box 11 and the inner box 12. In FIG. 2, the middle part of the main body 2 is omitted. This corner C can also be called a corner or a corner. Although FIG. 2 illustrates the upper right corner C as an example, the structures of the four corners C are substantially the same.

  First, an example of the shape of the outer case 11 shown in FIG. 2 will be described with reference to FIG.

  FIG. 3 shows an example of the shape of the outer box 11, FIG. 3 (A) is a developed view of the metal plate 13 constituting the outer box 11, and FIG. 3 (B) is a metal shown in FIG. It is a perspective view showing outer case 11 which bent board 13 and was constituted.

  The metal plate 13 shown in FIG. 3A is formed, for example, by bending a belt-like steel plate, and has a ceiling surface portion 14, left and right side surface portions 15 and 16, and a bottom surface portion 17. The mountain-folded portion 18 between the ceiling surface portion 14 and the left side surface portion 15, the mountain-folded portion 19 between the ceiling surface portion 14 and the right side surface portion 16, the right side surface portion 16 and the bottom surface portion 17 The mountain folds 20 between them are each bent 90 degrees. Moreover, by welding the end 21 of the left side face part 15 and the end 22 of the bottom face part 17, it is possible to configure the vertically-long outer case 11 shown in FIG. 3 (B). The outer case 11 is a rectangular parallelepiped box-like, with the front and back openings 55 and 56 being vertically long.

  Returning to FIG. 2, the inner box 12 is a rectangular parallelepiped box which is vertically long like the outer box 11 and disposed in the outer box 11. The inner box 12 is made, for example, by molding a plastic. The dimension of the inner case 12 is smaller than the dimension of the outer case 11 so as to enter the outer case 11. The inner box 12 has a ceiling surface portion 24, left and right side surface portions 25 and 26, and a bottom surface portion 27. The ceiling surface portion 24 of the inner case 12 is parallel to the ceiling surface portion 14 of the outer case 11 and faces away from it by a dimension T.

  The left side portion 25 of the inner box 12 is parallel to the left side portion 15 of the outer case 11 and faces away from it by a dimension T. The right side portion 26 of the inner case 12 is parallel to the right side portion 16 of the outer case 11 and faces away from it by a dimension T. The bottom surface portion 27 of the inner case 12 is parallel to the bottom surface portion 17 of the outer case 11 and is facing away from it by a dimension T. Thus, the inner case 12 is disposed in the outer case 11 and has a gap S of dimension T between the outer case 11 and the inner case 12.

  As shown in FIG. 2, plate-like vacuum heat insulating materials 30, 31, 32 and 33 are respectively disposed in the gap S between the outer case 11 and the inner case 12 in order to secure the heat insulation performance. This vacuum heat insulating material 30, 31, 32, 33 is, for example, a high vacuum porosity (for example, 90%) by wrapping a plate-like core material of glass wool with a laminate film and forming the inside into a porous structure of vacuum. Hold over). Therefore, the vacuum heat insulating materials 30, 31, 32, 33 can exhibit high heat insulating performance by vacuum.

  The heat insulating performance of the vacuum heat insulating materials 30, 31, 32, 33 is considerably higher than that of the foamed polyurethane material, so the heat insulating performance of the main body 2 is obtained even if thin vacuum heat insulating materials 30, 31, 32, 33 are used. Can be secured. For this reason, the gap S between the outer case 11 and the inner case 12 can be made smaller by using the vacuum heat insulating materials 30, 31, 32, 33 as compared with the case where the foamed polyurethane material is used. Since the inner dimension of the inner box 12 can be expanded when the external dimensions of the same are the same, the storage volume of the main body 2 of the refrigerator 1 can be increased.

  As shown in FIG. 2, the vacuum heat insulating material 30 is disposed in the gap S between the ceiling surface 24 of the inner case 12 and the ceiling surface 14 of the outer case 11, and another vacuum heat insulating material 31 is provided on the left side of the inner case 12. It is disposed in the gap S between the portion 25 and the side portion 15 on the left side of the outer case 11. Still another vacuum heat insulating material 32 is disposed in the gap S between the right side surface portion 26 of the inner box 12 and the right side surface portion 16 of the outer case 11. Further, another vacuum heat insulating material 33 is disposed in the gap S between the bottom surface portion 27 of the inner case 12 and the bottom surface portion 17 of the outer case 11. For example, although the outer surfaces of the vacuum heat insulating materials 30 to 33 can be attached to the inner surface 11A of the outer case 11 using an adhesive, it is disposed between the outer case 11 and the inner case 12 without using an adhesive. It can also be done.

  As shown in FIG. 2, the outer casing 11 and the inner casing 12 of the main body 2 have four corner portions C, and each corner portion C has the same structure. The vacuum heat insulators 30 to 33 are not arranged at the four corner portions C, and the four corner portions C include the inner surface 11A of the outer box 11, the inner surface 12A of the inner box 12 and the vacuum heat insulators 30 to 33. Spaces 35 are respectively formed by the end faces 34. In the space 35 of each corner C, the reinforcing member 40 vertically reinforces and holds the structure including the outer case 11, the inner case 12, and the vacuum heat insulating materials 30 to 33, as shown in FIG. It is arranged along the direction. By arranging the reinforcing members 40 at the four corner portions C, the rigidity of the main body 2 can be increased when the vacuum heat insulating materials 30 to 33 are used.

  As shown in FIG. 2, the reinforcing member 40 is, for example, a metal or plastic member having an L-shaped cross section, and the reinforcing member 40 adheres to the inner surface 11A of the outer case 11 at the corner C, for example. It can be fixed by an agent. The thickness of the reinforcing member 40 is considerably smaller than the thickness of the vacuum heat insulating material 30, and the inner surface 40A of the reinforcing member 40 is disposed at a position retracted along the direction DR toward the inner surface 11A of the outer case 11. It is done. Similarly, the inner surface 40A of another reinforcing member 40 is disposed at a position retracted toward the inner surface 11A of the outer case 11 along the direction DR. Further, the inner surface 40A of another reinforcing member 40 is disposed at a position where it is retracted along the direction DR toward the inner surface 11A of the outer case 11. Then, the inner surface 40A of the further reinforcing member 40 is disposed at a position where it is retracted along the direction DR toward the inner surface 11A of the outer case 11.

  As described above, the inner surface 40A of the reinforcing member 40 on the inner box 12 side is positioned closer to the outer box 11 than the inner surfaces 30A to 33A of the vacuum heat insulating materials 30 to 33 on the inner box 12 side. Thereby, when securing the heat insulation performance of the main body 2 using the vacuum heat insulating materials 30 to 33, the reinforcing member 40 can increase the rigidity of the refrigerator 1 having the vacuum heat insulating material at each corner portion C. Moreover, the weight reduction of the main body 2 can be achieved by using the reinforcing member 40 with a small thickness.

  As shown in FIG. 2, since the reinforcing members 40 are disposed at positions receding from the inner surfaces 30A to 33A of the vacuum heat insulating materials 30 to 33 toward the outer case 11 along the direction DR, each reinforcing member 40 does not protrude from the inner surfaces 30A to 33A of the vacuum heat insulating materials 30 to 33 to the inner box 12 side. Therefore, since each reinforcing member 40 does not protrude to the inner surface 12A side of the inner box 12 and is arranged close to the outer box 11 side, even if the reinforcing member 12 is arranged at the corner portion C, the reinforcing member 40 It does not itself get in the way when assembling the outer case 11 and the inner case 12. For this reason, although the main body 2 comprised from the outer case 11, the inner case 12, the vacuum heat insulating materials 30-33, and the several reinforcement member 40 is using the reinforcement member 40 additionally, it is an assembly field. Can be easily assembled.

  The main body 2 of the refrigerator 1 according to the first embodiment of the present invention can increase the rigidity of the main body 2 of the refrigerator 1 while securing the heat insulating performance using the vacuum heat insulating materials 30 to 33, and further improves the assembly workability. be able to. After arranging the vacuum heat insulating materials 30 to 33 between the outer case 11 and the inner case 12, the reinforcing member 40 can be easily made longitudinally along the vertical direction without damaging the vacuum heat insulating materials 30 to 33. It can be inserted and arranged. For this reason, when the replacement work of the reinforcement member 40 is required, it can carry out easily.

  By the way, as an order of attachment of the reinforcing member 40, when assembling the outer case 11, the inner case 12, the vacuum heat insulating materials 30 to 33, and the reinforcing member 40 shown in FIG. After pasting on the inner surface 11A of 11 using, for example, an adhesive, the reinforcing member 40 is installed on the inner surface 11A of each corner C of the outer box 11. Alternatively, after disposing the reinforcing member 40 on the inner surface 11A of the outer case 11 at each corner C in advance, the vacuum heat insulating materials 30 to 33 are attached to the inner surface 11A of the outer case 11 using an adhesive. Also good.

  FIG. 4 shows an example of the cross-sectional shape of the reinforcing member 40 shown in FIG. In the reinforcing member 40 shown in FIGS. 2 and 4A, the length L1 in the lateral direction is the same as the length L1 in the vertical direction, and the reinforcing member 40 is formed of one member. On the other hand, another reinforcing member 40 shown in FIG. 4B is configured by joining two members 40F and a member 40G. In another reinforcing member 40 shown in FIG. 4C, the length L1 in the lateral direction is longer than the length L2 in the longitudinal direction. In another reinforcing member 40 shown in FIG. 4D, the longitudinal length L1 is longer than the lateral length L2.

Second and Third Embodiments
Next, a second embodiment and a third embodiment of the present invention will be described with reference to FIG.

  5 (A) and 5 (B) respectively show the second embodiment and the third embodiment of the present invention, and FIGS. 5 (A) and 5 (B) show the main body 2 shown in FIG. The four corners C have the same structure, although they are representatively shown at one corner C of the outer case 11 and the inner case 12 of FIG. The second embodiment and the third embodiment of the present invention have the effects of the first embodiment of the present invention, and further have the following effects.

  The structure of the corner C shown in FIGS. 5A and 5B is different from the structure of the corner C shown in FIG. 2 in that the heat insulating members 60 and 61 correspond to the reinforcing member 40 having an L-shaped cross section. Are additionally provided. As the heat insulating members 60 and 61, a material having heat insulating properties, for example, a molded and foamed polystyrene (EPS) molded in advance can be adopted. Besides, as the heat insulating members 60, 61, a silicon material, a soft tape or the like can be adopted. The heat insulating members 60 and 61 are respectively disposed in the space 35 of the corner portion C and fixed to the inner surface 40A side of the reinforcing member 40 by using, for example, an adhesive, thereby filling the space 35 and improving heat insulation. can do.

  In the example shown to FIG. 5 (A), the heat insulation member 60 has a square cross section. Thus, the heat insulating member 60 can substantially fill the space 35 and maintain the heat insulating property at the corner C. Further, the connection end 24T of the ceiling surface 24 of the inner box 12 and the connection end 26T of the right side surface 26 are connected to overlap each other. The structure of the connection end portions 24T and 26T at such a corner C is the same at each corner C as well.

  In the example shown in FIG. 5 (B), the heat insulating member 61 has an L-shaped cross section. Thereby, the heat insulation member 61 can fill up a part of the space 35, and the heat insulation in the corner part C can be improved. Further, the connection end 24T of the ceiling surface 24 of the inner box 12 and the connection end 26T of the side surface 26 on the right side are stacked and joined to each other. The structure of the connection end portions 24T and 26T at such a corner C is the same at each corner C as well. As a result, the ceiling surface portion 24 of the inner box 12, the left and right side portions 25 and 26, and the bottom portion 27 can be divided into four and plastic-molded and joined, so the integrated inner box 12 can be made of plastic It can be easily made as compared to the case of molding.

(Fourth and Fifth Embodiments)
Next, fourth and fifth embodiments of the present invention will be described with reference to FIG.

  6 (A) and 6 (B) show the fourth and fifth embodiments of the present invention, and FIGS. 6 (A) and 6 (B) show the main body 2 shown in FIG. The four corners C have the same structure, although they are representatively shown at one corner C of the outer case 11 and the inner case 12 of FIG.

  The structure of the corner C shown in FIGS. 6A and 6B is different from the structure of the corner C shown in FIGS. 5A and 5B in that the ceiling surface 24 of the inner box 12 The right side 26 is continuous. The structure at such a corner C is the same at each corner C as well. Thus, the structure of the corner C shown in FIGS. 6A and 6B is a component of the inner box 12 compared to the structure of the corner C shown in FIGS. 5A and 5B. The score can be reduced.

Sixth Embodiment
FIG. 7 shows a sixth embodiment of the present invention.

  FIG. 7 shows an example of the structure of the vacuum heat insulating material 30, 31, 32, 33 described above. 7A is a perspective view showing the vacuum heat insulating materials 30, 31, 32, 33, and FIG. 7B shows a cross-sectional structure of the vacuum heat insulating materials 30, 31, 32, 33. C) is an example in which the vacuum heat insulating material 32 in the vacuum heat insulating materials 30, 31, 32, 33 is disposed between the right side 16 of the outer case 11 and the right side 26 of the inner case 12 Is shown on behalf of.

  As shown in FIG. 7A and FIG. 7B, the vacuum heat insulating materials 30, 31, 32, 33 wrap the core material 70 of glass wool in the laminate film 71, and the inside is a porous structure of vacuum. To maintain a high vacuum porosity (eg, greater than 90%). The laminate film 71 has one sealing portion 72 sealing the core 70 and the other sealing portion 73. One sealing portion 72 and the other sealing portion 73 can be formed, for example, by applying heat.

  When assembling the outer case 11 and the vacuum heat insulating materials 30, 31, 32, and 33, the manner of containing the sealing portions 72 and 73 is illustrated in FIG. 7C. As shown in FIG. 7C, taking the sealing portion 72 of the laminate film 71 as an example, the sealing portion 72 is bent toward the inner surface 16A of the side surface portion 16 on the right side of the outer case 11, and the inner surface 16A is obtained. By putting in between the laminate film 71 and. That is, the sealing portion 72 is not bent toward the inner surface 26 A of the side surface portion 26 of the inner box 12. The same is true for the sealing portion 73.

  In this way, the outer box 11 is a metal plate with a large rigidity, while the inner box 12 is a plastic plate with a rigidity smaller than a metal, in which the sealed portion 72 is folded and stored. . If the sealed portions 72, 73 are bent toward the inner box 12, the inner box 12 bulges inward under the influence of the thickness of the sealed portions 72, 73 where the inner box 12 is bent. The flatness may be lost, and the appearance may be deteriorated.

  Therefore, in order to prevent the influence of the thickness of the sealing portions 72 and 73 where the inner case 12 is bent, the sealing portions 72 and 73 are bent toward the outer case 11 side, thereby making the outer case 11 and the inner case The flatness of 12 can be ensured, and the inner box 12 can be attached cleanly to the vacuum heat insulating material 30, 31, 32, 33. Thus, the structure which bend | folds and encloses the sealing parts 72 and 73 in the outer case 11 is the same in any of vacuum-insulation material 30, 31, 32, 33. FIG.

Seventh and Eighth Embodiments
Next, seventh and eighth embodiments of the present invention will be described with reference to FIG.

  FIGS. 8A and 8B show the seventh and eighth embodiments of the present invention, and FIGS. 8A and 8B show a main body 2 shown in FIG. The four corners C have the same structure, although they are representatively shown at one corner C of the outer case 11 and the inner case 12 of FIG. The seventh embodiment and the eighth embodiment of the present invention have the effects of the first embodiment of the present invention, and further have the following effects.

  The end 32T of the vacuum heat insulating material 32 extends into the space 35 of the corner C because the structure of the corner C shown in FIG. 8A is different from the structure of the corner C shown in FIG. The end 32T has a step portion 32R. The stepped portion 32R is a stepped portion formed on the outside of the end 32T. The end 32T faces the inner surface 40A of the reinforcing member 40 with a gap, and the step portion 32R also faces the inner surface 40A of the reinforcing member 40 with a gap.

  By adopting such a structure, the end 32T of the vacuum heat insulating material 32 can be advanced into the space 35 of the corner C. In other words, the reinforcing member 40 can be positioned within the stepped portion 32R of the vacuum heat insulating material 32. As a result, the usable volume of the vacuum heat insulating material 32 can be expanded without reducing the size of the reinforcing member 40 or increasing the size of the reinforcing member 40. Thereby, the reinforcement member 40 can raise the heat insulation effect by the vacuum heat insulating material 32 in the corner part C, maintaining the intensity | strength in the corner part C, or raising intensity. This structure is the same at each corner C.

  Further, the structure of the corner C shown in FIG. 8B is different from the structure of the corner C shown in FIG. The end 30T, 32T has stepped portions 30R, 32R, respectively. The stepped portions 30R and 32R are stepped portions formed on the outside of the end portions 30T and 32T, respectively. The end portions 30T, 32T respectively face the inner surface 40A of the reinforcing member 40, and the step portions 30R, 32R also face the inner surface 40A of the reinforcing member 40.

  By adopting such a structure, the end portions 30T, 32T of the vacuum heat insulating materials 30, 32 can be advanced into the space 35 of the corner portion C. In other words, the reinforcing member 40 can be located both in the stepped portion 30R of the vacuum heat insulating material 30 and in the stepped portion 32R of the vacuum heat insulating material 32. As a result, the usable volume of the vacuum heat insulating material 30, 32 can be expanded without reducing the size of the reinforcing member 40 or increasing the size of the reinforcing member 40. Thereby, the reinforcement member 40 can raise the heat insulation effect by the vacuum heat insulating materials 30 and 32 in the corner part C, maintaining the intensity | strength in the corner part C, or raising intensity. This structure is the same at each corner C.

(9th and 10th embodiments)
Next, ninth and tenth embodiments of the present invention will be described with reference to FIG.

  FIGS. 9A and 9B show the ninth and tenth embodiments of the present invention, respectively, and FIGS. 9A and 9B show the main body 2 shown in FIG. The four corners C have the same structure, although they are representatively shown at one corner C of the outer case 11 and the inner case 12 of FIG. The ninth and tenth embodiments of the present invention have the effects of the seventh embodiment of the present invention shown in FIG. 8A, and further have the following effects.

  The structure of the corner C according to the ninth embodiment of the present invention shown in FIG. 9A differs from the structure of the corner C shown in FIG. 8A in that the heat insulating member 80 is additionally disposed in the space 35 It is being done. The heat insulating member 80 is a member elongated in the direction perpendicular to the paper surface of FIG. 9A, and is made of a heat insulating material, such as a molded foam polystyrene (EPS) molded in advance. The heat insulating member 80 has, for example, a rectangular cross section, and is disposed between the inner surface 40A of the reinforcing member 40 and the end portions 30T, 32T of the vacuum heat insulating materials 30, 32. Thereby, the added heat insulation member 80 can raise the heat insulation effect in the corner | angular part C. FIG.

  In the tenth embodiment of the present invention shown in FIG. 9B, the heat insulating member 80 is additionally disposed in the space 35 of the corner portion C. The heat insulating member 80 is a member elongated in the direction perpendicular to the paper surface of FIG. 9B, and is made of a heat insulating material, such as a molded foam polystyrene (EPS) that is molded in advance. The heat insulating member 80 has, for example, a rectangular cross section, and is disposed between the inner surface 40A of the reinforcing member 40 and the end portions 30T, 32T of the vacuum heat insulating materials 30, 32. Thereby, the added heat insulation member 80 can raise the heat insulation effect in the corner | angular part C. FIG.

  Moreover, in the end portions 30T and 32T of the vacuum heat insulating materials 30 and 32 shown in FIG. 9B, stepped portions 30R and 32R as shown in FIGS. 8A, 8B and 9A. Has not been formed. That is, the ends 30T, 32T of the vacuum heat insulating materials 30, 32 do not enter the space 35 of the corner C, and the ends 30T, 32T of the vacuum heat insulating materials 30, 32 are separated from the reinforcing member 40 .

  Therefore, after the vacuum heat insulating materials 30 and 32 are disposed between the outer case 11 and the inner case 12 at the time of assembly, the reinforcing member 40 is inserted in the longitudinal direction in the direction perpendicular to the paper surface of FIG. In this case, the reinforcing member 40 does not damage the laminated film 71 which is the outer covering of the vacuum heat insulating materials 30 and 32.

  Thereby, the reinforcing member 40 does not damage the laminate film 71 of the vacuum heat insulating materials 30 and 32, even after the vacuum heat insulating materials 30 and 32 are disposed between the outer case 11 and the inner case 12; It can be inserted into C and easily installed. That is, after the vacuum heat insulating materials 30 to 33 are disposed between the outer case 11 and the inner case 12, the reinforcing member 40 does not damage the vacuum heat insulating materials 30 to 33 and extends in the longitudinal direction along the vertical direction in the drawing. It can be easily inserted and arranged. Therefore, the work of replacing the reinforcing member 40 can be easily performed. Step portions 30R and 32R as shown in FIGS. 8A, 8B and 9A are formed on the end portions 30T and 32T of the vacuum heat insulating materials 30 and 32 shown in FIG. 9B. What is not done is the same as in the first embodiment of the present invention shown in FIG.

(Other embodiments)
10 (A) to 10 (C) respectively show still another embodiment of the present invention.

  In the embodiment of the present invention shown in FIG. 10 (A), the reinforcing member 120 has a rectangular cross section, the inner box 12 is formed of a plurality of inner plates, and the thickness G1 of the reinforcing member 120 is adjacent The thickness of the reinforcing member 120 is smaller than the thickness of the vacuum insulators 30 and 32 and the reinforcing member 120 is separated from the inner box 12.

  In the embodiment of the present invention shown in FIG. 10B, the reinforcing member 130 has a substantially rectangular cross section, but has a slope 131 at the corner facing the inner box 12. By providing the inclined surface 131 in the reinforcing member 130, the width FH of the side portion 132 of the reinforcing member 130 opposed to the end of the vacuum heat insulating material 30, 32 can be made larger than the thickness of the member of the inner box 12, The width FG of the reinforcing member 130 can be larger than the width of the vacuum heat insulating material 30, 32. A heat insulating member 170 is disposed on the side of the ceiling surface 24 of the inner box 12 and the corner of the side surface 26.

  In the embodiment of the present invention shown in FIG. 10C, the reinforcing member 140 has an inclined surface 141 at the corner facing the inner box 12. According to the inclined surface 141, the inclined portion 12V may be provided also on the inner box 12 side. Thereby, the inclined portion 12V can be escaped in space according to the inclined surface 141, so the reinforcing member 140 of FIG. 10 (C) has a cross-sectional area more than that of the reinforcing member 130 shown in FIG. 10 (B). It can be enlarged.

  Next, with reference to FIG. 11, the example of the manufacturing method of the outer case and inner case of the refrigerator of this invention is demonstrated.

  As shown in FIG. 11A, the two reinforcing members 150 and the two vacuum heat insulating materials 31 and 32 are attached to the metal plate 13. Left and right side portions 25 and 26 for forming the inner box are attached to the vacuum heat insulating materials 31 and 32, respectively. By bending the metal plate 13 shown in FIG. 11 (A) at the two reinforcement members 150, as shown in FIG. 11 (B), the ceiling surface 14 of the outer box 11 and the side surfaces 15, 16 on the left and right sides. Can be formed. That is, the two reinforcing members 150 can be used as bending means for bending the metal plate 13. In this state, the left and right side portions 25 and 26 face each other. As shown in FIG. 11A, the reinforcing members 150 and 150 and the vacuum heat insulating materials 31 and 32 are attached to the metal plate 13 in advance, after bending the metal plate, and then the vacuum heat insulating member and the vacuum heat insulating members are used. It is for the purpose of avoiding this because the mounting workability is poor when trying to attach the material.

  Next, as shown to FIG. 11C, the ceiling surface part 24 which comprises an inner case is arrange | positioned with respect to the side part 25 and 26 on either side. Further, the bottom surface portion 27 is disposed on the left and right side surface portions 15 and 16. Thus, as shown in FIG. 11D, the vacuum heat insulating material 30 can be disposed between the ceiling surface parts 14 and 24, and the vacuum heat insulating material 33 can be disposed between the bottom surface parts 17 and 27. Moreover, the ceiling surface portion 14 of the outer case 11, the left and right side surface portions 15, 16, and the bottom surface portion 17 can be configured by the reinforcing members 150, 150 and the other reinforcing members 151, 151. The inner box 12 can be configured by the ceiling surface portion 24, the left and right side surface portions 25 and 26, and the bottom surface portion 27.

  In addition, the vacuum heat insulating material 30 of the ceiling surface part 24 shown to FIG. 11C may be previously fixed with respect to the metal plate 13 shown to FIG. 11 (A).

  In addition, piping, an electric wire, a cold air passage, etc. may be provided in the reinforcement member arrange | positioned at the corner | angular part of an outer case and an inner case.

  In the refrigerator 1 according to the embodiment of the present invention, the outer case 11, the inner case 12 disposed in the outer case 11, and the vacuum heat insulating materials 30, 31, 32, 33 provided between the outer case 11 and the inner case 12 And a refrigerator. A reinforcing member 40 is disposed at a corner portion C of the outer case 11 and the inner case 12, and an inner surface 12A of the reinforcing member 40 on the inner case 12 side is an inner case of vacuum heat insulating materials 30, 31, 32, 33. It is positioned closer to the outer case 11 than the inner surface on the 12 side.

  Thereby, when securing heat insulation performance using the vacuum heat insulating materials 30, 31, 32, 33, the reinforcing member 40 can enhance the rigidity of the refrigerator 1 having the vacuum heat insulating material, and furthermore, the reinforcing member 40 is vacuum heat insulating Since each reinforcing member 40 is disposed at a position receding from each of the inner surfaces 30A to 33A of the members 30 to 33 toward the outer case 11 along the direction DR, each of the reinforcing members 40 has the respective inner surfaces 30A to 30 of the vacuum heat insulating materials 30 to 33. It does not protrude to the inner box 12 side from 33A. Therefore, the reinforcing member 40 does not protrude to the inner box 12 side, and even if the reinforcing member 12 is disposed at the corner C, the reinforcing member 40 does not get in the way, and the outer case 11 and the inner case 12 are vacuum-insulated. The main body 2 composed of the members 30 to 33 and the reinforcing member 40 can be easily assembled.

  As described above, in the refrigerator 1 according to the embodiment of the present invention, the rigidity of the refrigerator can be enhanced by using the reinforcing member disposed at the corner while securing the heat insulating performance by using the vacuum heat insulating material. And since foaming polyurethane material is not used, the assembly operativity of the refrigerator 1 can be improved. Since the foamed polyurethane material does not adhere to the vacuum heat insulating material, the vacuum heat insulating material can be easily replaced when repairing the refrigerator.

  As shown in FIG. 5, at the corner portion C, the heat insulating members 60 and 61 that maintain the heat insulation at the corner portion C are disposed. Thereby, even if the reinforcement member 40 is arrange | positioned to the corner | angular part C, the heat insulation members 60 and 61 can ensure the heat insulation performance in the corner | angular part C. FIG.

  The outer case 11 is made of metal, and the inner case 12 is made of plastic. As shown in FIG. 7, the vacuum heat insulating materials 30, 31, 32, 33 have a vacuum heat insulating material 70 and a film 71 covering the vacuum heat insulating material 70, and a sealed portion 72 which is an end of the film 71. , 73 are arranged on the inner surface 11A side of the outer case 11 by bending. Thereby, since the sealing parts 72 and 73 are not arrange | positioned at the plastic inner box 12, the problem that the plastic inner box 12 bulges inward can be prevented, and the flatness of the inner box 12 is ensured. it can.

  As shown in FIG. 8A, at each corner C, for example, on the outer surface side of the vacuum heat insulating material 32, a stepped portion 32R for accommodating a part of the reinforcing member 40 is provided. Thus, the end 32T of the vacuum heat insulating material 32 can be extended to the inside of the space 35 of the corner C without reducing the size of the reinforcing member 40, and the size of each usable vacuum heat insulating material can be used. The size can be increased, and the heat insulation performance can be further improved.

  As shown in FIGS. 2 and 9B, the reinforcing member 40 is disposed at a position away from the vacuum heat insulating materials 30 to 33. Thereby, after disposing the vacuum heat insulating materials 30 to 33 between the outer case 11 and the inner case 12, the reinforcing member 40 does not damage the vacuum heat insulating materials 30 to 33, and the longitudinal direction along the vertical direction in the drawing. It can be easily inserted and positioned. Therefore, it is possible to replace the reinforcing member 40 without damaging the vacuum heat insulating materials 30 to 33.

  The inner surface of the reinforcing member on the inner box side is positioned closer to the outer box than the inner surface of the vacuum heat insulating material on the inner box. Therefore, the reinforcing member does not interfere with the inner box.

  Since the thickness of the reinforcing member is smaller than the thickness of the vacuum heat insulating material, the reinforcing member does not interfere with the inner case and the outer case.

  Since the reinforcing member has the inclined portion, the reinforcing member having a larger cross-sectional area can be disposed.

  While the embodiments of the present invention have been described above, the embodiments are presented as examples and are not intended to limit the scope of the invention. The novel embodiments can be implemented in other various aspects, and various omissions, substitutions, and modifications can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the scope and the gist of the invention, and are included in the invention described in the claims and the equivalent scope thereof.

  The embodiments of the present invention can be used in any combination. Moreover, the structure of the refrigerator 1 shown in FIG. 1 is an example, and can employ | adopt arbitrary structures.

DESCRIPTION OF SYMBOLS 1 Refrigerator 2 Body 3 Guan Yin door 4 Guan Yin door 5 Cold storage room 7 Vegetable room 8 Ice making room 9 Upper freezing room 10 Main freezing room 30 Vacuum heat insulating material 30R Step portion 30T of vacuum heat insulating material End portion 31 of vacuum heat insulating material 32 Vacuum heat insulating material 32 Vacuum insulation 32R Vacuum insulation step difference 32T Vacuum insulation end 33 Vacuum insulation 35 Corner space 40 Reinforcement member 70 Core material 71 Laminated film 72 Laminated film sealed part 73 Laminated film sealed part C Corner

Claims (8)

A refrigerator comprising an outer case, an inner case disposed in the outer case, and a vacuum heat insulating material provided between the outer case and the inner case,
The corner portion of a part of the outer box is formed by bending a strip-like steel plate, and a reinforcing member for enhancing the rigidity of the corner portion is disposed at the corner portion,
The longitudinal direction of the reinforcing member is a direction perpendicular to the cross section of the outer case and the inner case,
Of the outer surface intersecting the reinforcing member, one of the outer surface abuts on the ceiling surface of the outer box inside surface constituting the corner portion, the other outer surface, and abuts against the side surface portion of the outer box inside surface And,
The said reinforcement member is arrange | positioned in the depth direction of the said corner | angular part over the range in which the said vacuum heat insulating material is installed at least .   The refrigerator according to claim 1, wherein the reinforcing member is made of metal or plastic. A space where the vacuum heat insulating material is not installed exists in the corner, and a heat insulating member for maintaining heat insulation in the corner is disposed in the space. The refrigerator described in 2.   4. The refrigerator according to any one of claims 1 to 3, wherein a step portion for accommodating a part of the reinforcing member is provided on the outer surface side of the vacuum heat insulating material. The refrigerator according to any one of claims 1 to 3, wherein the reinforcing member is disposed at a separated position not in contact with the vacuum heat insulating material.   The inner surface by the side of the above-mentioned inner box of the above-mentioned reinforcement member is located in the above-mentioned outer box side rather than the inner surface by the side of the above-mentioned inner box of the above-mentioned vacuum heat insulating material. Refrigerator.   The refrigerator according to any one of claims 1 to 3, wherein a thickness of the reinforcing member is smaller than a thickness of the vacuum heat insulating material. The refrigerator according to claim 1 or 2 , wherein the reinforcing member is formed in a rectangular shape in cross section, and a corner portion facing the inner box has an inclined portion.

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