JP2021073426A - refrigerator - Google Patents

Abstract

To provide a refrigerator which makes a vacuum heat insulation material less likely to be damaged and can increase its storage capacity by using the vacuum heat insulation material.SOLUTION: A tip extending downward of a screw 31, which integrally fixes an end part 51a of an outer box plate member 51 and a folded piece 91a of an outer box plate member 91, enters a corner part that is an engagement part between an upper surface plate-like part 5 and a right plate-like part 9. However, a soft tape 35 serving as a buffer member is disposed at the corner part, the engagement part between the upper surface plate-like part 5 and the right plate-like part 9, so as to cover the tip of the screw 31 entirely, and this structure prevents the tip of the screw 31 from being exposed in the engagement part. The soft tape 35 covers the tip of the screw 31 to prevent exposure of the tip.SELECTED DRAWING: Figure 5

Description

Embodiments of the present invention relate to refrigerators.

The refrigerator is configured by sandwiching a heat insulating material in the space between the outer box and the inner box constituting the heat insulating box body which is the main body of the refrigerator in order to improve the heat insulating performance and save energy. Conventionally, a foam heat insulating material made of hard urethane foam or the like has been used as this heat insulating material, but in recent years, a vacuum heat insulating material having a larger heat insulating effect than this foam heat insulating material and which can be made thinner has been used. Has been done.

The vacuum heat insulating material is, for example, a rectangular thin plate formed by wrapping a core material made of glass wool, which is a cotton-like material of fine glass fiber, into a mat shape and wrapping it in a bag made of a film having a high gas barrier property, which is made by laminating aluminum foil and a synthetic resin film. If the film constituting the bag body hits the sharp corners or screws of the structure constituting the heat insulating box body, there is a problem that the film is easily damaged and easily damaged.

The present invention has been made in view of the above, and an object of the present invention is to provide a refrigerator in which the vacuum heat insulating material is not easily damaged and the storage capacity can be increased by using the vacuum heat insulating material.

The refrigerator of the embodiment is a refrigerator having a refrigerator main body configured as a heat insulating box body having a vacuum heat insulating material and a foamed heat insulating material between the inner box and the outer box, and a plurality of refrigerators constituting the outer box. An inner box is composed of an outer box plate-shaped member, an engaging portion provided at a corner of the outer box in which the ends of the plurality of outer box plate-shaped members are engaged with each other, and an inner box. It has a box member and a heat insulating pipe arranged in the vicinity of the outer box, and the inner box member has a first inner box plate portion and the corner of the outer box of the inner box. An inclined portion provided by being obliquely bent at a first bent portion located in front of the corner portion of the outer box of the first inner box plate portion at a position facing the portion, and the inclined portion. It has a second inner box plate portion provided by being bent diagonally from the second bent portion of the above, and the thickness of the foamed heat insulating material is thinner than the thickness of the vacuum heat insulating material, and the corner of the outer box. The end portion of the vacuum heat insulating material extending toward the portion extends beyond the point where the inclined portion starts from the first inner box plate portion, ends before the corner portion of the outer box, and is inclined. The gap between the portion and the corner portion of the outer box is filled with the foamed heat insulating material, and the engaging portion and the end portion of the vacuum heat insulating material are separated from each other.

It is a perspective view which shows the whole structure of the refrigerator which concerns on one Embodiment of this invention. It is a perspective view which shows the heat insulating box body which comprises the refrigerator shown in FIG. It is an exploded perspective view of the heat insulating box body shown in FIG. It is a side view which looked at the refrigerator shown in FIG. 1 from the right side in the figure. FIG. 4 is a partial cross-sectional view showing an engaging portion between the upper surface plate-shaped portion and the right side plate-shaped portion at the upper end portion of the refrigerator taken along the line BB in FIG. FIG. 5 is a partial cross-sectional view similar to FIG. 5 showing an engaging portion between the upper surface plate-shaped portion and the right side plate-shaped portion at the upper end portion of the refrigerator according to another embodiment of the present invention. FIG. 5 is a partial cross-sectional view similar to FIG. 5 showing an engaging portion between the upper surface plate-shaped portion and the right side plate-shaped portion at the upper end portion of the refrigerator according to still another embodiment of the present invention. FIG. 5 is a partial cross-sectional view similar to FIG. 5 showing an engaging portion between the upper surface plate-shaped portion and the right side plate-shaped portion at the upper end portion of the refrigerator according to another embodiment of the present invention. FIG. 5 is a partial cross-sectional view similar to FIG. 5 showing an engaging portion between the upper surface plate-shaped portion and the right side plate-shaped portion at the upper end portion of the refrigerator according to still another embodiment of the present invention. FIG. 4 is a partial cross-sectional view showing in detail the engaging portion between the bottom plate-shaped portion and the right side plate-shaped portion at the lower end portion of the refrigerator taken along the line BB in FIG.

Hereinafter, embodiments for carrying out the present invention (hereinafter referred to as embodiments) will be described with reference to the drawings.

FIG. 1 is a perspective view showing the overall structure of a refrigerator according to an embodiment of the present invention. The refrigerator 1 shown in the figure is composed of a heat insulating box 3 having a main body sandwiching a vacuum heat insulating material between an inner box and an outer box, and the heat insulating box 3 is formed of a ceiling and a ceiling. Top plate-shaped portion 5 composed of plate-shaped members constituting the upper surface wall, bottom plate-shaped portion 7 composed of plate-shaped members constituting the bottom wall, right plate-shaped portion 9 composed of plate-shaped members constituting the right side wall, left side It is composed of a left side plate-shaped portion 11 made of a plate-shaped member constituting a wall and a back plate-shaped portion 13 made of a plate-shaped member forming a back wall. In FIG. 1, the left plate-shaped portion 11 and the back plate-shaped portion 13 are hidden behind and are not shown, so refer to FIGS. 2 and 3 described later. When the top plate-shaped portion 5, the bottom plate-shaped portion 7, the right-side plate-shaped portion 9, the left-side plate-shaped portion 11 and the back plate-shaped portion 13 are generically described, they are simply referred to as plate-shaped portions.

Further, on the front opening side of the heat insulating box 3 whose back is surrounded by the plurality of plate-shaped portions, a double door type refrigerating room door 15, a drawer type vegetable room door 17, and a drawer type ice making room door 19. A drawer-type first freezer door 21 and a drawer-type second freezer door 23 are attached. The second freezing room door 23 is provided side by side with the ice making room door 19. The refrigerating room door 15, the vegetable room door 17, the ice making room door 19, the first freezing room door 21, and the heat insulating box 3 behind the second freezing room door 23, respectively, contain a refrigerating room and vegetables. A room, an ice making room, a first freezing room and a second freezing room are provided.

2 and 3 show all the doors of the refrigerator room door 15, the vegetable room door 17, the ice making room door 19, the first freezing room door 21, and the second freezing room door 23 in the refrigerator 1 shown in FIG. 1, respectively. And a part of the partition member that separates the refrigerating room, the vegetable room, the ice making room, the first freezing room and the second freezing room, which are provided behind these doors, respectively. Then, it is a perspective view which clearly shows only the heat insulating box body 3 and the exploded perspective view of the heat insulating box body 3.

As is clearly shown in FIG. 2, the heat insulating box body 3 has a plurality of plate-shaped portions such as the upper surface plate-shaped portion 5, the bottom plate-shaped portion 7, the right-side plate-shaped portion 9, the left-side plate-shaped portion 11, and the back plate-shaped portion. It has a portion 13, and the ends of two plate-shaped portions adjacent to each other of these plurality of plate-shaped portions are abutted against each other or one plate-shaped member is bent, and the other plate-shaped member is overlapped and engaged. It is formed of an outer box 10 and an inner box 20. Further, the inner box may have an integral box structure by bending or welding the mated ends, in addition to engaging by screwing the screws of the overlapped portion in the engaging portion.

The outer box 10 and the inner box 20 are filled with a vacuum heat insulating material so as to be sandwiched between them, thereby improving the heat insulating property of the heat insulating box body 3. Further, as described above, the engaging portion in which the ends of the two adjacent plate-shaped portions are overlapped and engaged with each other has a screw or the like that fixedly connects the two adjacent plate-shaped portions. The ends of the two adjacent plate-shaped portions are firmly fixed to each other by the screws or the like.

Further, as can be seen from FIG. 3, the upper surface plate-shaped portion 5 constituting the upper surface wall of the heat insulating box 3 has a stepped shape in the front-rear direction, and the front portion has a flat plate shape parallel to the bottom plate-shaped portion 7. None, the rear part is located below the front part and forms a flat plate parallel to the bottom plate-like part 7. As described above, the machine room 25 is formed on the rear portion recessed below the upper plate-shaped portion 5, and a compressor (not shown) constituting the refrigeration cycle of the refrigerator 1 is provided in the machine room 25. .. As shown in FIG. 1, the upper part of the machine room 25 is closed by a closing plate 27.

FIG. 4 is a side view of the refrigerator 1 shown in FIG. 1 as viewed from the right side in the same figure, and the right plate-shaped portion 9 is shown from the front. As shown in the figure, the right side plate-shaped portion 9 is configured such that the outer peripheral edge portion 9a and the extending portion 9b extending upward of the lower central portion bulge. Although not shown, the left plate-shaped portion 11 is also configured in the same manner as the right plate-shaped portion 9.

FIG. 5 shows that the upper end plate-shaped portion 5 and the right end plate-shaped portion 9, which are two plate-shaped portions at the upper end portion of the refrigerator 1 taken along the line BB in FIG. 4, are butted against each other. It is a partial cross-sectional view which shows the fitted engaging part in detail. As shown in the figure, this engaging portion engages with the ends of the upper plate-shaped portion 5 and the right side plate-shaped portion 9, which are two plate-shaped portions adjacent to each other at the upper end portion of the refrigerator 1, so as to abut each other. It is a combined corner. The upper surface plate-shaped portion 5 includes an outer box plate member 51 constituting the outer box 10, an inner box plate member 53 constituting the inner box 20, and the outer box plate member 51 and the inner box plate member 53. It is composed of a vacuum heat insulating material 55 for the upper surface, which is arranged between the two. Further, a foam heat insulating material 57 made of hard urethane foam or the like is filled between the vacuum heat insulating material 55 for the upper surface and the plate member 51 for the outer box.

However, since the vacuum heat insulating material 55 for the upper surface, which has further improved heat insulating properties, is used, the filling amount of the foam heat insulating material 57 is smaller than that of the conventional one, and the thickness thereof is also thinner.

That is, the thickness of the vacuum heat insulating material is thicker than the thickness of the foamed heat insulating material, or the thickness of the foamed heat insulating material is thinner than the thickness of the vacuum heat insulating material. The thickness and the amount used are 80% or more of the total heat insulating material as a whole.

Further, the right side plate-shaped portion 9 is arranged so as to extend downward at a right angle to the above-mentioned upper surface plate-shaped portion 5. The right side plate-shaped portion 9 includes an outer box plate member 91 constituting the outer box 10, an inner box plate member 93 constituting the inner box 20, and the outer box plate member 91 and the inner box plate member. It is composed of a vacuum heat insulating material 95 for the right side wall which is sandwiched between 93 and arranged.

The outer box plate member 91 of the right plate-shaped portion 9 has a bent piece 91a whose upper end extending upward is bent at a right angle to the right and then slightly extended to the right. The end portion 51a of the outer box plate member 51 of the upper surface plate-shaped portion 5 extends to the outside of the curved piece 91a so as to overlap, and the end portion 51a of the overlapped outer box plate member 51 and the outer box plate member 91 The screw 31 is screwed so as to penetrate both of the bent pieces 91a, and the end portion 51a and the bent piece 91a are integrally fixed, and thus the outer box plate member 51 and the outer box plate member 91 are fixed. It is firmly and integrally fixed.

The tip extending downward of the screw 31 that integrally fixes the end portion 51a of the outer box plate member 51 and the bent piece 91a of the outer box plate member 91 is the upper surface plate-shaped portion 5 and the right side plate. Although it is inside the corner portion that is the engaging portion of the shaped portion 9, the soft tape 35, which is a cushioning member, is engaged with the upper plate-shaped portion 5 and the right side plate-shaped portion 9 so as to cover the tip of the screw 31 as a whole. It is arranged at a corner portion which is a joint portion so that the tip of the screw 31 is not exposed in the engaging portion. By covering the tip of the screw 31 with the soft tape 35 so as not to be exposed in this way, the vacuum heat insulating material 55 for the upper surface of the upper plate-shaped portion 5 and the vacuum heat insulating material 95 for the right wall of the right plate-shaped portion 9 are screwed. The tip of 31 is prevented from being damaged or damaged.

That is, the vacuum heat insulating material 55 for the upper surface and the vacuum heat insulating material 95 for the right side wall are formed in the shape of a rectangular thin plate by wrapping a mat-like core material made of, for example, glass wool, with a bag made of a film having a high gas barrier property. Therefore, the outer film is easily damaged. Therefore, as described above, the tip of the screw 31 is covered with the soft tape 35 so that the tip of the screw 31 does not directly hit the outer film of the vacuum heat insulating material. This prevents the vacuum heat insulating material from being damaged.

Further, the soft tape 35 constituting the cushioning member is made of a soft material having a cushioning property such as a sponge, and is formed by applying an adhesive or the like around the soft tape 35.

Further, in the inner box plate member 93 of the right plate-shaped portion 9, the upper end portion 93a extending upward extends to near the middle of the left end portion of the vacuum heat insulating material 55 for the upper surface. On the other hand, the inner box plate member 53 of the upper surface plate-shaped portion 5 is bent diagonally downward in front of the corner portion whose left end portion extending to the left is an engaging portion to form an inclined fixing portion 53a. ing. The lower end portion of the inclined fixing portion 53a extending diagonally downward is bent upward so as to be parallel to the inner box plate member 93 to form the mounting piece 53b. The mounting piece 53b is fixed to the inner box plate member 93 by an adhesive 33, whereby the inner box plate member 53 is fixed to the inner box plate member 93 at a right angle, and the upper surface plate-like portion 5 is fixed to the right side plate. It is fixed at a right angle to the shape portion 9.

Then, the foamed heat insulating material 57 is filled in all the gaps of the corners which are the engaging parts between the upper surface plate-shaped portion 5 and the right side plate-shaped portion 9 surrounded by the inclined fixing portion 53a and the like, and the heat insulating box is filled. The heat insulating performance of the body 3 is secured.

In the vacuum heat insulating material 55 for the upper surface of the upper surface plate-shaped portion 5, the left end portion extending toward the corner portion of the engaging portion is slightly in front of the upper end portion 93a of the inner box plate member 93 of the right side plate-shaped portion 9. It ends with. Further, the vacuum heat insulating material 95 for the right wall of the right plate-shaped portion 9 is terminated slightly before the corner portion of the right end portion of the vacuum heat insulating material 95, which extends upward toward the corner portion of the engaging portion, does not enter the corner portion. That is, the ends of the vacuum heat insulating material 55 for the upper surface and the vacuum heat insulating material 95 for the right side wall are separated from the corner portion and the screw 31 which are the engaging portions of the heat insulating box 3, and the screw 31 provided in the engaging portion. It is designed so that it will not be damaged by contact with such items. The screw 31 of the engaging portion is located between the vacuum heat insulating material 55 for the upper surface and the vacuum heat insulating material 95 for the right side wall, and the screw 31 comes into contact with the vacuum heat insulating material 55 for the upper surface and the vacuum heat insulating material 95 for the right side wall. It is prevented from being damaged. Further, as can be seen from FIG. 5, the upper end of the vacuum heat insulating material 95 for the right side wall is located above the inner surface of the inner box plate member 53 of the upper surface plate-shaped portion 5.

Further, as can be seen from FIG. 5, the vacuum heat insulating material 55 for the upper surface is arranged so as not to exist on the extension line of the engaging portion and the screw 31, and the vacuum heat insulating material 55 for the upper surface is tentatively provided with the engaging portion and the screw. Even if it is closer to 31, the end of the vacuum heat insulating material 55 for the upper surface is not damaged by the screw 31 or the like.

Further, as described above, the heat radiating pipe 37 of the refrigerator 1 is adjacently arranged on the right side of the soft tape 35 that covers and protects the tip of the screw 31. The heat radiating pipe 37 is attached to the soft tape 35 by an aluminum tape 39. By providing the heat radiating pipe 37 adjacent to the soft tape 35 in this way, the heat radiating pipe 37 can be protected from the screws 31. The heat radiating pipe 37 contacts the outer box plate member 51 via the aluminum tape 39 to improve the heat radiating effect of the heat radiating pipe 37.

As described above, in the present embodiment, at the corner portion which is the engaging portion between the upper surface plate-shaped portion 5 and the right side plate-shaped portion 9, the outer box plate member 51 and the right side plate-shaped portion 9 of the upper surface plate-shaped portion 5 Because the tip of the screw 31 that integrally fixes the outer box plate member 91 with the engaging portion of both, that is, the tip of the screw 31 extending into the engaging portion is covered with the soft tape 35 to protect it. The end portions of the vacuum heat insulating material 55 for the upper surface and the vacuum heat insulating material 95 for the right side wall directly hit the tip of the screw 31 to prevent damage.

Further, in the present embodiment, the engaging portion between the upper surface plate-shaped portion 5 and the right side plate-shaped portion 9 has been illustrated and described, but the same applies to the engaging portion between the upper surface plate-shaped portion 5 and the left side plate-shaped portion 11. It goes without saying that it is configured in.

Further, in the present embodiment, the thickness of the soft tape 35, which is a cushioning member, is larger than the length of the screw 31 so that the screw 31 is embedded in the soft tape 35 and is not exposed. By burying the screw 31 in the soft tape 35 so as not to be exposed in this way, it is possible to prevent the vacuum heat insulating material 55 for the upper surface and the vacuum heat insulating material 95 for the right side wall from coming into contact with the tip of the screw 31 and being damaged. can do.

In the present embodiment, the dimension between the upper surface of the vacuum heat insulating material 55 for the upper surface of the upper surface plate-shaped portion 5 and the lower surface of the plate member 51 for the outer box is shown relatively widely, but this dimension is shown. , It is desirable that the diameter is smaller than the diameter of the heat radiating pipe 37.

FIG. 6 is a partial cross-sectional view similar to FIG. 5 showing an engaging portion between the upper surface plate-shaped portion and the right side plate-shaped portion at the upper end portion of the refrigerator according to another embodiment of the present invention. In the embodiment shown in FIG. 6, the engagement state between the outer box plate member 51 of the upper surface plate-shaped portion 5 and the outer box plate member 91 of the right side plate-shaped portion 9 is changed in FIG. The only difference is that the mounting position of the screw 31 is changed, and the other configurations are the same as those in FIG. Therefore, in FIG. 6, the same components as those in FIG. 5 are designated by the same reference numerals, and the description thereof will be omitted.

As shown in FIG. 6, the tip extending to the left of the outer box plate member 51 constituting the upper surface plate-shaped portion 5 is bent downward at a right angle to form a bent piece 51b. Further, the upper end of the outer box plate member 91 constituting the right side plate-shaped portion 9 is not bent and extends straight as it is to become the upper end portion 91b, and the upper end portion 91b is placed on the bent piece 51b. The screws 31 overlap from the side and are screwed from the side so as to penetrate both the overlapped upper end portion 91b and the bent piece 51b, whereby the outer box plate member 51 and the outer box plate member 91 are firmly fixed. It is fixed.

The tip of the screw 31 that penetrates the bent piece 51b and the upper end portion 91b and integrally fixes them is the engaging portion between the upper surface plate-shaped portion 5 and the right side plate-shaped portion 9. Although it extends into the corner portion, the tip of the screw 31 is covered so as to be embedded in the soft tape 35 so as not to be exposed in the engaging portion. Therefore, the vacuum heat insulating material 55 for the upper surface and the vacuum heat insulating material 95 for the right side wall are not damaged by the screw 31.

FIG. 7 is a partial cross-sectional view similar to FIG. 5 showing an engaging portion between the upper surface plate-shaped portion and the right side plate-shaped portion at the upper end portion of the refrigerator according to still another embodiment of the present invention. The embodiment shown in FIG. 7 is different in that the inner box plate member 53 and the inner box plate member 93 are integrally and continuously configured in FIG. 5, and the other configurations are the same as those in FIG. Is. Therefore, in FIG. 7, the same components as those in FIG. 5 are designated by the same reference numerals, and the description thereof will be omitted.

That is, in FIG. 7, the inner box plate member 53 constituting the upper surface plate-shaped portion 5 does not have the inclined fixing portion 53a and the mounting piece 53b as shown in FIG. 5, and is left of the inner box plate member 53. The end portion extending straight toward the side is directly and continuously connected to the upper end portion of the inner box plate member 93 constituting the right side plate-shaped portion 9, and the inner box plate member 53 and the inner box plate member 93 are connected to each other directly and continuously. The ends of both are integrally and continuously formed and bent at a right angle to form a right-angled portion 98.

By integrally and continuously forming the end portions of the inner box plate member 53 and the inner box plate member 93 so as to form the right-angled portion 98 in this way, the inner box plate member 53 and the inner box plate member 53 are integrally and continuously configured. The connection with the member 93 is strengthened, and the inclined fixing portion 53a, the mounting piece 53b, the adhesive 33, etc. as shown in FIG. 5 are not required, the configuration is simple, and the manufacturing work is simple and efficient. Become a target.

FIG. 8 is a partial cross-sectional view similar to FIG. 5 showing an engaging portion between the upper surface plate-shaped portion and the right side plate-shaped portion at the upper end portion of the refrigerator according to another embodiment of the present invention. In the embodiment shown in FIG. 8, in FIG. 5, the vacuum heat insulating material 55 for the upper surface and the vacuum heat insulating material 95 for the right side wall are connected at right angles at an engaging portion to be integrally formed, and the plate member 93 for the inner box is formed. The only difference is that the tip of the upper end portion 93a of the above is bent in a loop shape to form the loop portion 93b, and the other configurations are the same as those in FIG. Therefore, in FIG. 8, the same components as those in FIG. 5 are designated by the same reference numerals, and the description thereof will be omitted.

That is, in FIG. 8, since the vacuum heat insulating material 55 for the upper surface and the vacuum heat insulating material 95 for the right side wall are continuously connected at a right angle at the engaging portion to be integrally formed, the vacuum heat insulating material for the upper surface is integrally formed. Compared with the case where the 55 and the vacuum heat insulating material 95 for the right side wall are separately configured, it is more efficient, the heat insulating property and workability can be improved, and the upper surface plate-shaped portion 5 and the right side plate-shaped portion 9 are formed. The vacuum heat insulating material can be appropriately arranged at the corners, which are the engaging portions, without any gaps.

Further, by bending the tip of the upper end portion 93a of the inner box plate member 93 into a loop shape to form the loop portion 93b, the loop portion 93b becomes the vacuum heat insulating material 55 for the upper surface, the vacuum heat insulating material 95 for the right side wall, or the vacuum heat insulating material 95 for the right side wall. Even if they come into contact with the corners of both, the vacuum heat insulating material will not be damaged.

FIG. 9 is a partial cross-sectional view similar to FIG. 5 showing an engaging portion between the upper surface plate-shaped portion and the right side plate-shaped portion at the upper end portion of the refrigerator according to still another embodiment of the present invention. In the embodiment shown in FIG. 9, the upper end portion of the vacuum heat insulating material 95 for the right side wall is further extended upward in FIG. 5, and the upper end portion 95a and the upper surface of the vacuum heat insulating material 95 for the right side wall extending upward are used. The screw 31 is arranged by moving to the right so as to be located in the gap between the left end surface 55b of the vacuum heat insulating material 55, and the soft tape 35, the heat radiating pipe 37, and aluminum are further arranged in accordance with the movement of the screw 31. The only difference is that the tape 39 is moved to the right, and the other configurations are the same as in FIG. Therefore, in FIG. 9, the same components as those in FIG. 5 are designated by the same reference numerals, and the description thereof will be omitted.

That is, in FIG. 9, the upper end portion 95a of the vacuum heat insulating material 95 for the right side wall constituting the right plate-shaped portion 9 extends upward and extends to the left end surface 55b of the vacuum heat insulating material 55 for the upper surface to a close side. The upper surface portion 95b of the upper end portion 95a of the vacuum heat insulating material 95 for the right side wall has the same horizontal level as the upper surface portion 55a of the vacuum heat insulating material 55 for the upper surface.

Further, the bent piece 91a of the outer box plate member 91 constituting the right side plate-shaped portion 9 further extends to the right to form an extending end portion 91c, and is outside on the extending end portion 91c. The end portion 51a of the box plate member 51 is overlapped, and the screw 31 is screwed so as to penetrate the overlapping extending end portion 91c and the end portion 51a, and the outer box plate member 51 and the outer box plate member 51 are screwed together. The 91 is integrally fixed. Therefore, the screw 31 is moved to the right so as to be located on the extending end portion 91c extending to the right. Therefore, the screw 31 is located in the gap between the end surface 95c of the upper end portion 95a of the vacuum heat insulating material 95 for the right side wall and the left end surface 55b extending to the left of the vacuum heat insulating material 55 for the upper surface. .. Further, the soft tape 35 protecting the screw 31 also extends to the right, and the heat dissipation pipe 37 and the aluminum tape 39 also extend to the right.

As described above, in the present embodiment, since the vacuum heat insulating material 95 for the right side wall extends upward, the gap between the vacuum heat insulating material 95 for the right side wall and the vacuum heat insulating material 55 for the upper surface, that is, for the right side wall The gap between the end surface 95c of the upper end portion 95a of the vacuum heat insulating material 95 and the left end surface 55b of the vacuum heat insulating material 55 for the upper surface is reduced, and the heat insulating performance is improved. Further, since the screw 31 is moved to the right so as to be located in the gap between the vacuum heat insulating material 55 for the upper surface and the vacuum heat insulating material 95 for the right side wall, it is possible to prevent the vacuum heat insulating material from being damaged by the screw. it can.

In FIG. 10, the bottom plate-shaped portion 7 which is two plate-shaped portions at the lower end portion of the refrigerator 1 taken along the line BB in FIG. 4 and the end portions of the right plate-shaped portion 9 are butted against each other. It is a partial cross-sectional view which shows the fitted engaging part in detail. This engaging portion is a corner portion in which the ends of the bottom plate-shaped portion 7 and the right side plate-shaped portion 9 which are two plate-shaped portions adjacent to each other at the lower end of the refrigerator 1 are butted against each other and engaged with each other. The bottom plate-shaped portion 7 includes an outer box plate member 71 constituting the outer box 10, an inner box plate member 73 constituting the inner box 20, and the outer box plate member 71 and the inner box plate member 73. It is composed of a vacuum heat insulating material 75 for the bottom surface, which is sandwiched between the two. Further, a foam heat insulating material 77 made of hard urethane foam or the like is filled between the vacuum heat insulating material 75 for the bottom surface and the plate member 71 for the outer box.

Further, the right side plate-shaped portion 9 is arranged so as to extend upward at a right angle to the bottom plate-shaped portion 7 described above. As described above, the right side plate-shaped portion 9 includes an outer box plate member 91 constituting the outer box 10, an inner box plate member 93 constituting the inner box 20, and these outer box plate members 91. It is composed of a vacuum heat insulating material 95 for the right side wall, which is sandwiched between the inner box plate members 93.

The outer box plate member 91 of the right plate-shaped portion 9 has a bent piece 91d whose lower end extending downward is bent at a right angle to the right and then slightly extended to the right. The end 71a of the outer box plate member 71 of the bottom plate-like portion 7 extends to the outside of the curved piece 91d so as to overlap, and the end 71a of the overlapped outer box plate member 71 and the outer box plate member 91 The screw 41 is screwed so as to penetrate both of the bent pieces 91d, and the end portion 71a and the bent piece 91d are integrally fixed, and thus the outer box plate member 71 and the outer box plate member 91 are fixed. It is firmly and integrally fixed. Further, an L-shaped reinforcing plate 79 is attached to the inside of the end portion 71a of the overlapping outer box plate member 71 and the bent piece 91d of the outer box plate member 91 to reinforce the overlapping corner portions. ing.

The tip extending upward of the screw 31 that integrally fixes the end portion 71a of the outer box plate member 71 and the bent piece 91d of the outer box plate member 91 is the bottom plate-shaped portion 7 and the right side plate. Although it is inside the corner portion that is the engaging portion of the shaped portion 9, the soft tape 43, which is a cushioning member, is engaged with the bottom plate-shaped portion 7 and the right plate-shaped portion 9 so as to cover the tip of the screw 41 as a whole. It is arranged at a corner portion, which is a joint portion, so as to cover the tip of the screw 41 so as not to be exposed in the engaging portion. By covering the tip of the screw 41 with the soft tape 43 so as not to be exposed in this way, the vacuum heat insulating material 75 for the bottom surface of the bottom plate-shaped portion 7 and the vacuum heat insulating material 95 for the right side wall of the right plate-shaped portion 9 are screwed. The tip of 41 is prevented from being damaged or damaged. That is, the tip of the screw 31 is covered with the soft tape 43 so that the tip of the screw 41 does not directly hit the film outside the vacuum heat insulating material, thereby preventing the vacuum heat insulating material from being damaged. ..

Further, in the inner box plate member 93 of the right side plate-shaped portion 9, the lower end portion 93c extending downward extends close to the outer box plate member 71 of the bottom plate-shaped portion 7. On the other hand, the inner box plate member 73 of the bottom plate-shaped portion 7 is bent diagonally upward in front of the engaging portion whose left end portion extending to the left is a corner portion to form an inclined fixing portion 73a. ing. The upper end portion of the inclined fixing portion 73a extending diagonally upward is bent downward so as to be parallel to the inner box plate member 93 to form the mounting piece 73b. The mounting piece 73b is fixed to the inner box plate member 93 by an adhesive, whereby the inner box plate member 73 is fixed to the inner box plate member 93 at a right angle, and the bottom plate-shaped portion 7 is formed into a right-side plate. It is firmly fixed at a right angle to the portion 9.

Then, the foam heat insulating material 77 is filled in all the gaps of the corners which are the engaging portions between the bottom plate-shaped portion 7 and the right side plate-shaped portion 9 surrounded by the inclined fixing portion 73a and the like, and the heat insulating box is filled. The heat insulating performance of the body 3 is secured.

Further, in the vacuum heat insulating material 75 for the bottom surface of the bottom plate-shaped portion 7, the left end portion extending toward the corner portion of the engaging portion is terminated slightly before the inner box plate member 93 of the right plate-shaped portion 9. There is. Further, the vacuum heat insulating material 95 for the right side wall of the right side plate-shaped portion 9 has a lower end portion extending downward and abuts on the soft tape 43 covering the tip of the screw 41, whereby the right side plate-shaped portion 9 and the bottom are brought into contact with each other. The corner portion which is the engaging portion with the face plate-shaped portion 7 is completely covered from the right side surface side to improve the heat insulating property.

Further, as can be seen from FIG. 10, the vacuum heat insulating material 75 for the bottom surface is arranged so as not to exist on the extension line of the engaging portion and the screw 41, and the vacuum heat insulating material 75 for the bottom surface is tentatively provided on the engaging portion and the screw. Even if it is closer to 41, the end portion of the vacuum heat insulating material 75 for the bottom surface is not damaged by the screw 41 or the like.

Further, as described above, the heat radiation pipe 45 of the refrigerator 1 is located on the right side of the soft tape 43 that covers and protects the tip of the screw 41, and further on the right side of the lower end portion 93c of the inner box plate member 93. They are arranged adjacent to each other. The heat radiating pipe 45 is attached to the soft tape 43 by an aluminum tape 47. By providing the heat radiating pipe 45 adjacent to the soft tape 43 in this way, the heat radiating pipe 45 can be protected from the screws 41. The heat radiating pipe 45 comes into contact with the outer box plate-shaped portion 71 via the aluminum tape 47 to improve the heat radiating effect of the heat radiating pipe 45.

As described above, in the present embodiment, at the corner portion which is the engaging portion between the bottom plate-shaped portion 7 and the right side plate-shaped portion 9, the outer box plate member 71 and the right side plate-shaped portion 9 of the bottom plate-shaped portion 7 Because the tip of the screw 41 that integrally fixes the outer box plate member 91 with the engaging portion of both, that is, the tip of the screw 41 extending into the engaging portion is covered with the soft tape 43 to protect it. , The end portion of the vacuum heat insulating material 75 for the bottom surface and the vacuum heat insulating material 95 for the right side wall directly hits the tip of the screw 41 to prevent damage.

In the above embodiment, the upper surface plate-shaped portion 5, the bottom plate-shaped portion 7, the right-side plate-shaped portion 9, and the left-side plate-shaped portion 11 constituting the outer box 10 and the inner box 20 are separately divided, and each of them is divided. The heat insulating box body 3 is formed by connecting the corner portions which are the engaging portions of the heat insulating box body 3, that is, each of the outer box plate members constituting the outer box 10 of the heat insulating box body 3 is separately divided. However, the present invention is not limited to this, and each outer box plate member may be integrally connected to form a single plate. Further, the inner box plate members constituting the inner box 20 of the heat insulating box 3 are not limited to those separately divided, but are integrally connected to form a single plate. It may be configured in.

Although some embodiments of the present invention have been described, these embodiments are presented as examples and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other embodiments, and various omissions, replacements, and changes can be made without departing from the gist of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are also included in the scope of the invention described in the claims and the equivalent scope thereof.

1 Refrigerator 3 Insulated box 5 Top plate-shaped part 7 Bottom plate-shaped part 9 Right plate-shaped part 10 Outer box 20 Inner box 11 Left plate-shaped part 13 Back plate-shaped part 31, 41 Screw 33 Adhesive 35, 43 Soft tape 37 , 45 Heat dissipation pipe 39, 47 Aluminum tape 51 Outer box plate member 51a End 53 Inner box plate member 53a Inclined fixing part 53b Mounting piece 55 Top surface vacuum insulation 57 Foam insulation 71 Outer box plate member 73 Inner box Plate member 75 Vacuum insulation for bottom surface 77 Foam insulation 91 Outer box plate member 91a Folded piece 91b Upper end 91c Extended end 91d Folded piece 93 Inner box plate member 93a Upper end 95 Vacuum insulation for right side wall Wood

Claims (2)

A refrigerator having a refrigerator body configured as a heat insulating box body having a vacuum heat insulating material and a foam heat insulating material between the inner box and the outer box.
A plurality of outer box plate-shaped members constituting the outer box,
An engaging portion provided at a corner portion of the outer box, in which the ends of the plurality of plate-shaped members for the outer box are engaged with each other.
The inner box member constituting the inner box and
A heat radiating pipe arranged close to the outer box and
Have,
The inner box member is
The plate for the first inner box and
The inner box is provided by being bent diagonally at a position facing the corner of the outer box and at a first bent portion of the first inner box plate portion located in front of the corner of the outer box. With the sloping part
It has a second inner box plate portion that is provided by being bent diagonally from the second bent portion of the inclined portion.
The thickness of the foam heat insulating material is thinner than the thickness of the vacuum heat insulating material.
The end of the vacuum heat insulating material extending toward the corner of the outer box extends beyond the point where the inclined portion starts from the plate for the first inner box and is in front of the corner of the outer box. Terminate with
The gap between the inclined portion and the corner portion of the outer box is filled with the foamed heat insulating material.
A refrigerator in which the engaging portion and the end portion of the vacuum heat insulating material are separated from each other. The refrigerator according to claim 1, wherein the distance between the surface of the vacuum heat insulating material on the outer box side and the outer box facing the vacuum heat insulating material is smaller than the diameter of the heat radiating pipe.

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