JP5303397B2 - refrigerator - Google Patents

Description

  The present invention relates to a refrigerator provided with a vacuum heat insulating material.

  In recent years, needs for energy saving and space saving and large capacity have been increased in refrigerators, and vacuum heat insulating materials having higher heat insulating performance and thinner heat insulating properties than foamed heat insulating materials are used.

  In Patent Document 1, a vacuum heat insulating material is incorporated through a spacer at a position that bisects a space (wall thickness direction) formed by the outer box and the inner box, and between the outer box and the vacuum heat insulating material. A configuration in which a foamed heat insulating material is filled and foamed between the inner box and the vacuum heat insulating material is described.

Japanese Patent No. 4111096

  The configuration described in Patent Document 1 is provided with a large-area vacuum heat insulating material without being interfered by the unevenness of the outer box or the inner box. In addition, the vacuum heat insulating material is separated from the outer box to which the condensation pipe or the like is attached to prevent the temperature from becoming higher than the outside air temperature.

  However, when filling the foam heat insulating material, a large number of spacers need to be provided and fixed in order to install the vacuum heat insulating material in the space created by the outer box and the inner box against the foaming pressure. That is, there is a problem that the manufacturing process becomes complicated.

  Moreover, when the flow of the foam heat insulating material was inhibited by providing the spacer and an unfilled portion was generated, there was a problem that the strength of the heat insulating box was reduced.

  Then, in order to solve the said subject, this invention aims at obtaining the refrigerator which suppressed the intensity | strength fall of the heat insulation box and improved the heat insulation performance.

In order to achieve the above object, the present invention provides a refrigerator provided with a foam heat insulating material and a vacuum heat insulating material in a space formed between an outer box and an inner box, wherein the outer box is a plate-like metal. A cutout portion provided in the outer box , a resin storage case provided in the cutout portion so as to protrude toward the space formed between the outer box and the inner box, and the storage case And a plurality of spacers in contact with the outer box , the vacuum heat insulating material has a bent portion, and a rear upper surface of the vacuum heat insulating material is a bottom surface of the storage case . And the upper surface of the front portion of the vacuum heat insulating material is supported by the spacer with a flat portion in front of the bent portion and a flat portion near the front end of the vacuum heat insulating material in the vicinity of the bent portion. It does not touch the box and the inner box.

The space between the outer box and the vacuum heat insulating material at a portion where the spacer supports the vacuum heat insulating material is set to 5 mm to 10 mm.

  The vacuum heat insulating material may be larger than the width and depth dimensions of the storage case.

Further, in a refrigerator provided with a foam heat insulating material and a vacuum heat insulating material in a space formed between the door outer plate and the door inner plate, the notch provided in the door outer plate, and the notch in the notch A storage case provided between the door outer plate and the door inner plate so as to protrude toward the space; an operation unit provided in the storage case and having a component that generates heat when driven; A plurality of spacers in contact with the plate, wherein the vacuum heat insulating material is bonded to the bottom surface of the storage case, and the portions extending above and below the vacuum heat insulating material have bent portions, outward from the bent portions. The flat portion is supported by the spacer and does not contact the door outer plate and the door inner plate.

  ADVANTAGE OF THE INVENTION According to this invention, the refrigerator which suppressed the intensity | strength fall of the heat insulation box and improved the heat insulation performance can be obtained.

It is a front view of the refrigerator which concerns on Example 1 of this invention. It is AA sectional drawing of FIG. FIG. 3 is an enlarged view of a main part of FIG. 2. It is a principal part longitudinal cross-sectional view of the operation part which has in the refrigerator door which concerns on Example 2 of this invention. It is a principal part longitudinal cross-sectional view of the refrigerator which concerns on Example 3 of this invention. It is a principal part longitudinal cross-sectional view of the refrigerator which concerns on Example 4 of this invention. It is BB sectional drawing of FIG. It is a principal part longitudinal cross-sectional view of the refrigerator which concerns on Example 5 of this invention.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  1, 2, and 3, reference numeral 1 denotes a refrigerator body. The refrigerator main body 1 is a control device that controls the refrigerator box 2, the door 3, the refrigeration cycle (which includes the cooler 4a and the compressor 4b) and the refrigeration cycle to set the inside of the refrigerator main body 1 to a predetermined temperature. 5 etc.

  Moreover, the refrigerator main body 1 has the refrigerator compartment 6, the freezer compartment 7, and the vegetable compartment 8 in an order from the top. Furthermore, the refrigerator compartment door 3a, the freezer compartment 3b, and the vegetable compartment 3c are provided in the front opening of the refrigerator compartment 6, the freezer compartment 7, and the vegetable compartment 8, respectively.

  The cooler 4 a is provided in a cooler chamber 25 provided behind the freezing chamber 7. In addition, a blower 27 is provided in the cooler chamber 25 and above the cooler 4a to blow cool air heat-exchanged by the cooler 4a to each storage chamber.

  The compressor 4 b is provided in a machine room 26 provided behind the vegetable room 8.

  28 is a defrost heater. The defrosting heater 28 is provided below the cooler 4a and is energized to generate heat during a so-called defrosting operation for melting frost attached to the cooler 4a.

  9 is a foam heat insulating material. The foam heat insulating material 9 is filled between the outer box 2a made of a thin steel plate and the inner box 2b made of a resin constituting the refrigerator box 2, and performs heat insulation between the inside and the outside of the box. In addition, the filling method to the refrigerator box 2 of the foam heat insulating material 9 makes the foam heat insulating material 9 from the inlet (not shown) provided between the back surface and the side surface by making the back side of the refrigerator box 2 into an upper surface. Is injected into the space formed by the outer box 2a and the inner box 2b. The injected stock solution is foamed while flowing from the stored lower part to the back side of the refrigerator box 2.

  10 is a vacuum heat insulating material. The vacuum heat insulating material 10 is a material in which an inorganic fiber aggregate such as glass wool is heated and dried and then inserted into a jacket material made of a metal foil layer film or the like, and the inside is evacuated to seal the opening. The vacuum heat insulating material 10 made in this way becomes a plate-like body having a certain degree of rigidity.

  Moreover, the heat conductivity (W / mK) of the vacuum heat insulating material 10 is generally about 1/10 that of the foam heat insulating material 9, and the heat insulating performance is high. Moreover, the thickness of the vacuum heat insulating material 10 is about 10-15 mm. The vacuum heat insulating material 10 having a thickness of 10 to 15 mm occupies 1/3 to 1/2 of the heat insulating space dimension d1 (see FIG. 3) formed by the outer box 2a and the inner box 2b. Moreover, the size of one piece of the vacuum heat insulating material 10 has a dimension smaller than the dimension of the ceiling surface of the refrigerator main body 1, for example.

  Furthermore, the vacuum heat insulating material 10 may have a flat plate shape or a shape having a step 10a (bending portion) in the middle as shown in FIG.

  Reference numeral 11 denotes a storage case attached to a part of the outer box 2a cut out. A lid 11 a is provided on the top of the storage case 11. A control device 5 is stored in the storage case 11. In addition, not only the control apparatus 5, but also a part that generates heat by driving, such as an electrical part or a mechanical part such as a compressor, may be used.

  The storage case 11 is formed of resin, and as shown in FIGS. 2 and 3, the storage case 11 is provided such that a part on the heat insulation space dimension d1 side is recessed. That is, the storage case 11 is provided in a cutout portion 14 of the outer box 2a described later so as to protrude toward the space formed between the outer box 2a and the inner box 2b.

  The rear upper surface of the vacuum heat insulating material 10 is bonded and fixed to the bottom surface 11b (foamed heat insulating material 9 side) of the storage case 11 with a hot melt adhesive 12 or the like. The front upper surface of the vacuum heat insulating material 10 is bonded and fixed to the spacer 13. The spacer 13 is bonded and fixed to the outer box 2a with a double-sided tape or the like. In the present embodiment, the spacer 13 is provided in the vicinity of the step 10 a of the vacuum heat insulating material 10 and in contact with the flat portion in front of the step 10 a and the flat portion near the front end of the vacuum heat insulating material 10.

  On the other hand, since the notch 14 is in a state where the outer box 2a is notched, the rigidity is lowered and the strength of the refrigerator box 2 is lowered. Specifically, the strength of the refrigerator box 2 is secured by solidifying the outer box 2 a and the inner box 2 b using the adhesive force of the foam heat insulating material 9. However, the storage case 11 provided in the notch 14 is made of resin and is not integrated with the outer box 2a but is a separate body (for example, attached with screws, bolts, nuts, etc.). Thereby, compared with the refrigerator box 2 which does not provide the notch part 14, box strength falls.

  Furthermore, in the refrigerator provided with the storage case 11 having a dimension corresponding to 1/2 to 1/3 of the width dimension (500 to 800 mm) of the refrigerator box 2, for example, when a large number of storage pockets are provided on the inner surface of the refrigerator compartment door 3a. Will be described. In this case, the center of gravity moves to the front of the refrigerator body 1 by storing a large load (food, etc.) in the storage pocket.

  In this embodiment, the vacuum heat insulating material 10 is provided on the lower surface of the storage case 11 in order to suppress the strength reduction of the refrigerator box 2 described above. That is, a part of the rear side of the vacuum heat insulating material 10 is bonded and fixed to the bottom surface 11b of the storage case 11 with the hot melt adhesive 12 or the like, and the front side greatly extends to the inner surface of the outer box 2a.

  In other words, the plate-like and rigid vacuum heat insulating material 10 has a front side reaching the lower surface of the outer box 2a, and ensures a sufficient bonding area with the foam heat insulating material 9. In addition, in order to secure the adhesive force between the vacuum heat insulating material 10 and the foam heat insulating material 9, a surface treatment (adhesion force is applied in advance) before foam filling so that the foam heat insulating material 9 can easily adhere to the surface of the vacuum heat insulating material 10. For example, chemical treatment) may be performed.

  By filling the foam heat insulating material 9 in this state, the vacuum heat insulating material 10 solidifies the outer box 2a, the inner box 2b, the storage case 11 and the like to improve the strength.

  In addition, the gap between the outer box 2a and the vacuum heat insulating material 10 is set narrower to 5 to 10 mm than the others. Thereby, since the solidified vacuum heat insulating material 10 acts as a reinforcing member, it becomes a high-density foam heat insulating material layer, and the adhesive strength is improved.

  At this time, the foam heat insulating material 9 filled between the outer box 2a and the vacuum heat insulating material 10 (gap size 5 to 10 mm) peels off the adhesion between the vacuum heat insulating material 10 and the bottom surface 11b of the storage case 11 by the foaming pressure. The force to try to act. In this embodiment, since the bonding area is sufficiently secured, the position of the vacuum heat insulating material 10 is prevented from shifting.

  As described above, the rear portion of the vacuum heat insulating material 10 is fixed to the bottom surface 11b of the resin-made storage case 11, and the front portion is supported by the plurality of spacers 13 provided in the outer box 2a made of iron thin plate. It is positioned so as not to contact the outer box 2a and the inner box 2b between the dimensions d1.

  The vacuum heat insulating material 10 in the pre-assembled state is mainly fixed by adhesion to the storage case 11, and the adhesion fixing of the vacuum heat insulating material 10 by the spacer 13 is auxiliary. That is, it is only necessary to ensure a gap, for example, 5 mm or more, between the vacuum heat insulating material 10 and the outer box 2a so that the foam heat insulating material 9 can sufficiently wrap around.

  As described above, the plate-shaped and rigid vacuum heat insulating material 10 is provided so as to straddle the notch portion 14, and the vacuum heat insulating material 10, the storage case 11, and the outer box 2a are connected via the foam heat insulating material 9. ing. For this reason, even if it is a case where the notch part 14 is provided, while being able to ensure box strength, the vacuum heat insulating material 10 can fully exhibit an original function.

  Further, since the vacuum heat insulating material 10 is bonded and fixed to the resin storage case 11, the vacuum heat insulating material 10 itself is affected by heat conduction as compared with the case where the vacuum heat insulating material 10 is bonded and fixed to the outer casing 2 a made of iron plate. It is difficult.

  Thereby, since the temperature outside the container is not directly transmitted from the outer box 2a made of iron plate to the outer packaging material including the metal layer of the vacuum heat insulating material 10, the thermal influence of the refrigerator installation environment can be suppressed. Moreover, it can suppress that the performance of the vacuum heat insulating material 10 deteriorates by high temperature.

  Next, Example 2 will be described with reference to FIG. FIG. 4 is a longitudinal sectional view of a main part of an operation unit included in the refrigerator door according to the second embodiment of the present invention. The present embodiment is an example in which an operation unit for controlling the operation of the refrigerator body is provided on the refrigerator compartment door. The user can operate the operation of the refrigerator or the function of the refrigerator from the outside by operating a push button or the like of the operation unit 15.

  In FIG. 4, 23 is an iron plate door outer plate, 24 is a resin door inner plate, 9 is a foam heat insulating material, and 10 is a vacuum heat insulating material. Reference numeral 18 denotes a resin operation unit case in which the operation unit 15 is provided.

  A part of the vacuum heat insulating material 10 is bonded and fixed to the bottom surface 18a of the operation section case 18 with the hot melt adhesive 12 and the like.

  Reference numeral 14 denotes a notch provided in the door outer plate 23. An operation unit case 18 is attached to the notch 14 and an operation unit 15 is provided. The operation unit 15 includes components that generate heat when driven.

  In the present embodiment, the vacuum heat insulating material 10 is provided so as to extend from the bottom surface 18 a of the operation unit case 18 to the door outer plate 23 side. The part where the said vacuum heat insulating material 10 extended up and down has the bending part 10a. The outer side of the bent portion 10 a becomes a flat portion, and the flat portion is supported by the spacer 13. Therefore, the dent and distortion of the door outer plate 23 that are likely to occur when the vacuum heat insulating material 10 is directly attached to the door outer plate 23 can be suppressed.

  Moreover, since the temperature outside the chamber is not directly transmitted from the door outer plate 23 made of iron plate to the outer packaging material including the metal layer of the vacuum heat insulating material 10, the thermal influence of the refrigerator installation environment can be suppressed. Moreover, it can suppress that the performance of the vacuum heat insulating material 10 deteriorates by high temperature.

  Moreover, since the vacuum heat insulating material 10 has the bending part 10a, rigidity increases. Thereby, when filling and foaming the foam heat insulating material 9 between the door outer plate 23 and the door inner plate 24, deformation is suppressed against the foaming pressure.

  Further, the number of spacers 13 can be reduced, and the processing number and cost of the refrigerator itself can be reduced.

  Next, Example 3 will be described with reference to FIG. FIG. 5 is a longitudinal sectional view of an essential part of the refrigerator according to the third embodiment of the present invention.

  In FIG. 5, 2 is a refrigerator box, 2a is an outer box, 2b is an inner box, 5 is a control device, 6 is a refrigerator, 9 is a foam insulation, 10 is a vacuum insulation, 11 is a storage case, and 12 is hot. A melt adhesive, 13 is a spacer, and 14 is a notch.

  The vacuum heat insulating material 10 shown in FIG. 5 is formed by bending the vacuum heat insulating material 10 from the upper wall 16 side to the back wall 17 side of the outer box 2a.

  Usually, the outer box 2a constituting the refrigerator box 2 is formed by bending a steel sheet, which is a strip-shaped thin plate, into a U shape, forming both side walls and an upper wall 16, and combining the back wall 17 and the bottom wall with this. The box is made up. For this reason, the strength of the connecting portion between the back wall 17 and the upper wall 16 decreases. In this embodiment, the vacuum heat insulating material 10 is arranged so as to supplement the strength of the connecting portion between the back wall 17 and the upper wall 16.

  That is, the plate-shaped and rigid vacuum heat insulating material 10 bent in an L shape is disposed in the heat insulating space dimension d1 so as to straddle the upper wall 16 and the back wall 17 serving as a connecting portion. . At this time, in order for the vacuum heat insulating material 10 to secure the adhesive force of the foam heat insulating material 9, the gap size between the vacuum heat insulating material 10 and the upper wall 16 and the gap size between the vacuum heat insulating material 10 and the back wall 17 are set as spacers. 13 to 5 to 10 mm.

  The vacuum heat insulating material 10 is mainly fixed with a hot melt adhesive 12 or the like provided on the bottom surface 11b of the storage case 11, and the fixing of the vacuum heat insulating material 10 with the spacer 13 is auxiliary. Thereby, the vacuum heat insulating material 10 can compensate the intensity | strength of the refrigerator box 2a which may fall with the notch part 14 or the connection part of the upper wall 16 and the back wall 17, maintaining heat insulation performance.

  Next, Example 4 will be described with reference to FIGS. FIG. 6 is a longitudinal sectional view of a main part of a refrigerator according to Example 4 of the present invention. 7 is a cross-sectional view taken along line BB in FIG.

  In the figure, 2 is a refrigerator box, 2a is an outer box, 2b is an inner box, 6 is a refrigerator compartment, 9 is a foam heat insulating material, 10 is a vacuum heat insulating material, 12 is a hot melt adhesive, and 13 is a spacer.

  Reference numeral 19 denotes an interior light case. An interior light 20 is provided inside the interior light case 19. Reference numeral 21 denotes an interior light cover. The interior light cover 21 illuminates the refrigerator compartment 6 with the light emitted from the previous interior light 20 through the interior light cover 21. The interior lamp 20 is a component that generates heat when driven.

  Reference numeral 22 denotes a notch provided in the inner box 2b. The interior light case 19 is disposed so as to be recessed from the cutout portion 22 toward the foam heat insulating material 9.

  Further, as shown in FIG. 6, the vacuum heat insulating material 10 is provided by being bonded and fixed to the upper surface 19 a of the interior lamp case 19 with a hot melt adhesive 12 or the like.

  In this embodiment, when the interior light case 19 is attached to the refrigerating chamber 6, the cutout portion 22 of the inner box 2b is provided in order to suppress the protruding dimension toward the refrigerating chamber 6 side. Further, the strength of the inner box 2b that may be lowered by providing the notch 22 is a configuration that is compensated by providing the vacuum heat insulating material 10 close to the inner box 2b.

  That is, the plate-shaped and rigid vacuum heat insulating material 10 is disposed in the heat insulating space dimension d1 so as to cover the notch 22 of the inner box 2b. The vacuum heat insulating material 10 is bonded and fixed to the upper surface 19 a of the interior light case 19.

  In addition, a gap dimension between the vacuum heat insulating material 10 and the inner box 2b is secured to 5 to 10 mm through the spacer 13 in other portions other than the portion where the vacuum heat insulating material 10 faces the interior light case 19. Thereby, the adhesive force of the foam heat insulating material 9 is securable.

  The fixing of the vacuum heat insulating material 10 by the spacer 13 is auxiliary, and is mainly fixed by the upper surface 19a of the interior lamp case 19 and the hot melt adhesive 12 or the like.

  Thereby, the vacuum heat insulating material 10 can play the role as a reinforcing material, maintaining the heat insulation performance, and it can be set as the refrigerator box 2 which has sufficient intensity | strength.

  Next, Example 5 will be described with reference to FIG. In the present embodiment, a storage case 11 is provided behind the upper wall 16 of the outer box 2a, and the control device 5 is stored in the storage case 11. Moreover, the vacuum formed in the substantially Z shape so as to straddle the foam heat insulating material 9 side of the storage case 11 and the foam heat insulating material 9 side of the interior light case 19 provided in front of the upper wall 16 of the inner box 2b. The heat insulating material 10 is installed through a spacer 13 in a space formed between the outer box 2a and the inner box 2b.

  The outer casing 2a side of the vacuum heat insulating material 10 and the spacer 13 are bonded and fixed with a hot-melt adhesive 12 or the like. By interposing the spacer 13, the vacuum heat insulating material 10 can be installed so as not to contact the outer box 2a, and a gap (5 to 5) is filled between the vacuum heat insulating material 10 and the outer box 2a. About 10 mm) is formed. Then, the space formed between the outer box 2 a and the inner box 2 b is filled with the stock solution of the foam heat insulating material 9 and foamed, so that the periphery of the vacuum heat insulating material 10 is wrapped in the foam heat insulating material 9. At this time, it is preferable that the outer surface of the vacuum heat insulating material 10 is subjected to a surface treatment for improving the adhesiveness and adhesion to the hot melt adhesive 12 and the foamed heat insulating material 9.

  Thereby, the adhesive fixing part formed in the space between the outer box 2a and the inner box 2b is between the outer box 2a and the foam heat insulating material 9, and between the foam heat insulating material 9 and the vacuum heat insulating material 10 on the outer box 2a side. Between the inner box 2b side of the vacuum heat insulating material 10 and the foam heat insulating material 9, and between the foam heat insulating material 9 and the inner box 2b, the box strength can be increased. Further, since the periphery of the vacuum heat insulating material 10 is covered with the foam heat insulating material 9, the fine irregularities appearing on the surface of the vacuum heat insulating material 10 after evacuation do not appear on the outer surfaces of the outer box 2a and the inner box 2b. The outer surfaces of the box 2a and the inner box 2b can be formed smoothly.

  A resin storage case 11 for storing the control device 5 is installed behind the upper wall 16 of the outer box 2a. If the foamed heat insulating material 9 is foamed in the gap between the vacuum heat insulating material 10 and the storage case 11, the storage case 11 may be deformed by the foaming pressure. However, deformation can be suppressed by the weight of the control device 5 installed in the storage case 11. Of course, not only the control device 5, but also when a compressor is installed, for example, deformation due to foaming pressure can be similarly suppressed.

  In the present embodiment, the spacer 13 is described as being attached to the outer box 2a. However, the spacer 13 is attached to the inner box 2b, and the foam heat insulating material 9 is interposed between the inner box 2b and the vacuum heat insulating material 10. The same effect can be obtained even if a gap for filling is formed. Moreover, if the vacuum heat insulating material 10 and the upper surface 19a of the interior lamp case 19 are bonded and fixed with a hot melt adhesive 12 or the like as shown in FIG. 6, the bonding area is increased, and the box strength can be further increased.

  The shape of the spacer 13 is not particularly limited. For example, the spacer 13 has a three-dimensional shape of about 50 mm (W) × 100 mm (D) × 10 mm (H) and does not hinder the flow of the foam heat insulating material 9 during foaming. desirable. In addition, the number of spacers 13 and the installation locations are not particularly limited as long as the flow of the foam heat insulating material 9 is not hindered and the vacuum heat insulating material 10 is not displaced by the foaming pressure of the foam heat insulating material 9. For example, the spacers 13 having the above dimensions may be provided at the four corners of the surface of the vacuum heat insulating material 10 on the outer box 2a side, or at three locations if the vacuum heat insulating material 10 is not displaced.

  Moreover, the dimension of the height direction of each part provided in the upper wall 16 part of the refrigerator box 2 is, for example, the dimension between the outer box 2a and the surface of the vacuum heat insulating material 10 on the outer box 2a side. The thickness of the vacuum heat insulating material 10 is 10 to 20 mm, and the space between the inner box 2b and the surface of the vacuum heat insulating material 10 on the inner box 2b side is 30 to 50 mm. It is not limited.

  Moreover, the vicinity of the high temperature parts such as the concave portion in which the control device 5 is disposed and the interior lamp 20 and the portion where the foam heat insulating material 9 becomes thin by installing the control device 5 and the interior light cover 21 are insulated. Thus, the heat leakage into the cabinet is further reduced, but it is not particularly limited to this arrangement.

  Since it has the configuration described above, the following effects can be obtained.

  That is, a foam heat insulating material and a vacuum heat insulating material are provided between the outer box and the inner box, and a part of the outer box is cut out, and the resin storage case is cut out in the direction of reducing the heat insulating wall thickness. A part of the vacuum heat insulating material is fixed to the storage case with adhesive etc., and the other part is extended so as to straddle the notch and is positioned between the outer box and the inner box. It is a refrigerator buried inside.

  That is, a plate-like and rigid vacuum heat insulating material is provided so as to extend across the notch and is provided close to the box, and the vacuum heat insulating material and the box using the adhesive strength of the foam heat insulating material. By connecting the gaps, it is possible to increase the box strength that is reduced by providing the notch.

  In addition, a part of the vacuum heat insulating material is attached to the resin storage case to ensure the positioning of the vacuum heat insulating material, facilitating installation in the foam heat insulating material, and the inside of the heat generating heat in the storage case It is possible to minimize the influence of heat on (for example, the refrigerator compartment). Moreover, since the fixing | fixed part of a vacuum heat insulating material is resin, it becomes difficult to conduct the temperature outside a warehouse to a vacuum heat insulating material, and deterioration of a vacuum heat insulating material can be prevented.

  The portion of the vacuum heat insulating material that is not bonded to the storage case is provided with a wall thickness of 5 mm to 10 mm with respect to the box (for example, outer box) on the side where the storage case is incorporated.

  As a result, the vacuum heat insulating material and the box are firmly fixed to each other via the foam heat insulating material, and further, by providing the notch, it is possible to minimize a decrease in the strength of the box.

  The outer box is a thin steel plate, the inner box is made of resin, the outer box is provided with a notch for attaching the storage case, and the vacuum heat insulating material and the outer part are the same except for the attachment part of the vacuum heat insulating material to the storage case. A plurality of spacers are arranged so that the wall thickness with the box is constant.

  Thereby, the temperature change from the attachment part of a vacuum heat insulating material to the vacuum heat insulating material side can be suppressed, and deterioration of the vacuum heat insulating material itself can be prevented. Furthermore, since the fine irregularities of the vacuum heat insulating material are absorbed by the foam heat insulating material and do not appear on the outer box surface, the outer box surface always maintains a good appearance shape.

  Also, the vacuum insulation material embedded in the foam insulation between the outer box and the inner box is made larger in both vertical and horizontal dimensions than the notch dimensions for mounting the storage case. It superposes | polymerizes through a box and a foam heat insulating material straddling a notch part.

  As a result, the connection between the vacuum heat insulating material and the box through the foam heat insulating material is strengthened, and the reduction in the box strength that is reduced by providing the notch can be minimized.

  Moreover, a notch is provided in the door outer plate, and a storage case is provided in the notch. As a result, a rigid vacuum heat insulating material made in the shape of a plate is provided close to the door outer plate with a notch, and the adhesive force of the foam heat insulating material is used to connect the vacuum heat insulating material and the door outer plate. By connecting, it is possible to increase the strength of the door body which is lowered by providing the notch.

  In addition, a part of the vacuum heat insulating material is attached to the resin storage case, facilitating installation in the foam heat insulating material, and further lowering the temperature entering the vacuum heat insulating material side from the vacuum heat insulating material mounting portion. Deterioration can be prevented.

DESCRIPTION OF SYMBOLS 1 Refrigerator main body 2 Refrigerator box body 2a Outer box 2b Inner box 3a Refrigeration room door 5 Control device 6 Refrigeration room 9 Foam insulation 10 Vacuum insulation 10a Step (bending part)
11 Storage case 11a Lid 11b, 18a Bottom surface 12 Hot melt adhesive 13 Spacer 14 Notch 15 Operation part 16 Upper wall 17 Back wall 18 Operation part case 19 Interior light case 19a Upper surface 20 Interior light 21 Interior light cover 22 Notch 23 Door outer plate 24 Door inner plate

Claims (4)

In the refrigerator provided with a foam heat insulating material and a vacuum heat insulating material in the space formed between the outer box and the inner box,
The outer box is a plate-like metal, and a notch provided in the outer box ;
A resin storage case provided in the cutout portion so as to protrude to the space formed between the outer box and the inner box;
A component that is provided in the storage case and generates heat by driving;
A plurality of spacers in contact with the outer box ,
The vacuum heat insulating material has a bent portion, a rear upper surface of the vacuum heat insulating material is bonded to a bottom surface of the storage case , and a front upper surface of the vacuum heat insulating material is closer to the bent portion than the bent portion. The front flat part and the flat part near the front end of the vacuum heat insulating material are supported by the spacer and do not contact the outer box and the inner box. The refrigerator according to claim 1, wherein a space between the outer box and the vacuum heat insulating material at a portion where the spacer supports the vacuum heat insulating material is set to 5 mm to 10 mm . The refrigerator according to claim 1, wherein the vacuum heat insulating material is larger than a width and a depth dimension of the storage case . In the refrigerator provided with a foam heat insulating material and a vacuum heat insulating material in a space formed between the door outer plate and the door inner plate,
A notch provided in the door skin,
A storage case provided in the cutout portion so as to protrude toward the space formed between the door outer plate and the door inner plate;
An operation unit having a part provided in the storage case and generating heat by driving;
A plurality of spacers in contact with the door outer plate,
The vacuum heat insulating material is bonded to the bottom surface of the storage case, and a portion extending vertically from the vacuum heat insulating material has a bent portion, and a flat portion outward from the bent portion is supported by the spacer, and A refrigerator that does not contact the door outer plate and the door inner plate .

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