JP2005180718A - Refrigerator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an inexpensive and strong heat-insulative box body by cutting manufacturing cost and stabilizing refrigeration performance in a storing chamber, in a refrigerator for which the heat-insulative box body is formed by a cool air seal of stepped parts while combining the stepped parts of a panel end part including a heat-insulative material with each other. <P>SOLUTION: The storing chamber 27 is provided in the heat-insulative box body 28, having an opening at a front face, formed by combining panels including the heat-insulative material 22. At the panel end part including the heat-insulative material 22, a groove is formed at a corner 45 of the step part 44 and the step part 44. Because of combination of the step parts 44 and an adhesive sealing material 55 coated on the groove 45 at the corner of step part 44, assembling is made easy, strength is enhanced, cool air leakage from a fitting face of the step parts 44 is prevented, manufacturing cost is cut, temperature in the storing chamber 27 can be stabilized and the heat-insulative box body can be made strong. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a structure of an assembly-type refrigerator using a heat insulating panel.

  Examples of the combination of the heat insulating panels include an assembly in which the surfaces of the end portions of the heat insulating panels are connected together.

  However, in these combination methods, it takes a long time to align the connecting portions, and the strength is weak, making it difficult to obtain a box.

  On the other hand, a combination method is considered in which the end of one heat-insulating pal is made to be a stepped portion that engages the surface, and the end is fixed to shorten the alignment time and increase the strength of the box. It has been.

  Conventionally, as this type of refrigerator, there is one that is fixedly assembled by a fastening bracket while engaging a stepped portion and a surface of an end portion of a heat insulating panel (for example, see Patent Document 1).

  Hereinafter, the conventional refrigerator will be described with reference to the drawings. FIG. 16 is a partially exploded perspective view of a conventional heat insulation box of a refrigerator. FIG. 17: is a principal part front view which shows the coupling | bonding of the left and right side panel and bottom panel of the heat insulation box of the conventional refrigerator. FIG. 18 is a plan view of an essential part showing the connection between the left and right side panels and the back panel of a heat-insulating box of a conventional refrigerator.

  As shown in FIGS. 16, 17, and 18, the conventional refrigerator 1 has an outer plate and an inner plate made of a metal plate such as a stainless steel plate or an aluminum plate or a synthetic resin plate arranged at a predetermined interval. In between, it is assembled using panels filled with insulation such as rigid foamed urethane foam or foamed polystyrene.

  Assembling is performed by attaching a glass door frame 5 having a rear panel 3 and a glass door 4 to the bottom panel 2, and further attaching a top panel 6 to the upper end surface of the rear panel 3 and the glass door frame 5. The side panel 7 is attached. A leg portion 8 is fixed to the bottom panel 2.

  The left and right side panels 7 are configured by filling a polyurethane foam between an outer plate constituting a flat outer surface and an inner plate constituting an inner surface formed by pressing the convex portion 9 inward by a press, At the boundary between the inner side surface 10 and the convex portion 9 around the convex portion 9, the lower step portion 11, the rear panel 3, and the glass door frame 5 are engaged with the end portions of the bottom panel 2 and the top panel 6. Left and right step portions 12 are formed to be engaged with the end portions.

  The left and right side panels 7 are attached to the panels and the glass door frame 5 by fastening fasteners 14 through the mounting holes 13 of the panels and the glass door frame 5.

  The bottom panel 2, the back panel 3, the glass door frame 5, the top panel 6 and the left and right side panels 7 are attached to the side surface 15 of the bottom panel 2, the side surface 16 of the back panel 3, the side surface 17 of the glass door frame 5, The bolt 19 is applied from the mounting hole 13 on the side surface 18 of the upper panel 6 to the mounting hole 13 on the inner surface of the left and right side panels 7, the wrench is applied to the bolt 19 from a wrench window (not shown), and the bolt 19 is rotated. Accordingly, the nut 20 fixed inside the mounting holes 13 of the left and right side panels 7 is used to fasten the inner side surface 10 around the convex portion 9 of the left and right side panels 7.

  About the refrigerator 1 comprised as mentioned above, the operation | movement is demonstrated below.

  First, after combining the bottom panel 2, the back panel 3, the glass door frame 5, and the top panel 6, the side surface 15 of the bottom panel 2, the side surface 16 of the back panel 3, the side surface 17 of the glass door frame 5, and the side surface 18 of the top panel 6. And the inner side surface 10 around the convex portion 9 of the left and right side panels 7 are joined together, on the outer peripheral portion of the convex portion 9 from the inner side surface 10 around the left and right side panel 7, the lower step portion 11 left and right The step portion 12 engages with the inner surface of the bottom panel 2, the back panel 3, the glass door frame 5, and the top panel 6 end portion to prevent downward displacement. Further, the refrigerator is reinforced so as to be strong against the compressive force from the circumferential direction.

The bottom panel 2, the back panel 3, the glass door frame 5, the top panel 6, and the left and right side panels 7 are fastened by fastening fasteners 14 through the attachment holes 13 and serve as a heat insulating box of the refrigerator 1.
Japanese Utility Model Publication No. 3-42992

  However, in the above conventional configuration, the heat insulating box of the refrigerator 1 is combined by contacting the inner surfaces of the end portions of the bottom panel 2 and the top panel 6 and the end surfaces of the end portions of the rear panel 3 and the glass door frame 5, The side surface 15 of the panel 2, the side surface 16 of the back panel 3, the side surface 17 of the glass door frame 5, the flat surface portion of the side surface 18 of the top panel 6, and the inner surface 10 around the convex portion 9 of the left and right side panels 7 are joined. On the outer periphery of the convex portion 9 from the inner side surface 10 around the left and right side panels 7, the lower step portion 11 left and the right step portion 12 are the bottom panel 2, the back panel 3, the glass door frame 5, and the top panel 6 end. The bottom panel 2, the back panel 3, the glass door frame 5, the top panel 6, and the left and right side panels 7 are fastened at the locations of the left and right side panels 7 with the fasteners 14 through the mounting holes 13. Because it is a worn configuration, the bottom panel 2, the back panel 3, Since the combined abutment portion between the door frame 5 and the upper panel 6 is not fastened by the fastener 14, a gap is generated from the deformation of each panel due to the temperature difference between the outside and the inside due to cooling of the refrigerator 1, There were drawbacks such as leakage and unstable refrigerator temperature.

  The present invention solves the problems of the prior art, and a gap is generated from the deformation of each panel due to a temperature difference by assembling the combination abutting portions of the bottom panel 2, the back panel 3, the glass door frame 5, and the top panel 6. It is another object of the present invention to provide a refrigerator that can prevent leakage of cold air, increase strength, and stabilize the temperature in the refrigerator.

  In the above conventional configuration, the bottom panel 2, the back panel 3, the glass door frame 5, the top panel 6, and the left and right side panels 7 constituting the heat insulation box of the refrigerator 1 are joined by the end surfaces of the panels. Because of this construction, there is a disadvantage that condensation occurs on the outer plate from which the cold air leaks together with the cold air leakage from the joint.

  Another object of the present invention is to prevent cold air leakage from the joint portions joined by the surfaces of the end portions of the bottom panel 2, the back panel 3, the glass door frame 5, the top panel 6, and the left and right side panels 7. It is intended to prevent condensation on the leaked outer plate, stabilize the temperature, and prevent rust and corrosion.

  Further, in the above conventional configuration, the heat insulating box of the refrigerator 1 is arranged such that an outer plate and an inner plate made of a metal plate such as a stainless plate or an aluminum plate or a synthetic resin plate are arranged at a predetermined interval, and foamed therebetween. It is assembled using a panel filled with a heat insulating material such as flexible polyurethane or foamed polystyrene.

  Assembling is performed by abutting and combining the inner surfaces of the end portions of the bottom panel 2 and the top panel 6 with the end surfaces of the end portions of the back panel 3 and the glass door frame 5, and the side surface 15 of the bottom panel 2 and the side surface 16 of the back panel 3. The flat surface portion of the side surface 17 of the glass door frame 5 and the side surface 18 of the upper surface panel 6 and the inner side surface 10 around the convex portion 9 of the left and right side panel 7 are joined, and the inner side surface 10 around the left and right side panel 7 is joined. On the outer peripheral portion of the convex portion 9 from the bottom, the lower step portion 11 left, the right step portion 12 engage with the inner surface of the bottom panel 2, the back panel 3, the glass door frame 5, the top panel 6 end, Since the back panel 3, the glass door frame 5, the top panel 6, and the left and right side panels 7 are fastened to the left and right side panels 7 by the fastening brackets 14 through the mounting holes 13, the side surface of the bottom panel 2 is provided. 15, side surface 16 of the back panel 3, side surface 17 of the glass door frame 5 The outer plate of the flat portion of the side surface 18 of the upper panel 6 is assembled close to the inside of the refrigerator 1 and heat conduction from the cooled refrigerator 1 to the outer plate of each panel, resulting in condensation. There were drawbacks.

  Another object of the present invention is to prevent heat conduction from the outer plates of the flat portions of the side surface 15 of the bottom panel 2, the side surface 16 of the back panel 3, the side surface 17 of the glass door frame 5, and the side surface 18 of the top panel 6. It is to prevent condensation on the plate, stabilize the temperature and prevent rust and corrosion.

  In addition, the conventional configuration is such that the bottom panel 2, the back panel 3, the glass door frame 5, the top panel 6 and the left and right side panels 7 are attached to the side 15 of the bottom panel 2, the side 16 of the back panel 3, Bolts 19 are applied from the mounting holes 13 on the side surface 17 of the glass door frame 5 and the side surface 18 of the upper panel 6 to the mounting holes 13 on the inner surface of the left and right side panels 7, and a wrench is applied to the bolt 19 from a wrench window (not shown). A structure in which the bolt 19 is rotated and fastened to the inner side surface 10 around the convex portion 9 of the left and right side panel 7 using the nut 20 fixed inside the mounting hole 13 of the left and right side panel 7. Therefore, the assembly in which the bolt 19 is rotated and fixed with a wrench takes time and has the disadvantage that the number of assembly steps increases.

  Another object of the present invention is to shorten the assembling time, to reduce the manufacturing cost, and to provide an inexpensive refrigerator.

  In the conventional configuration, the heat insulating panel is generally made of a foamed resin such as foamed polystyrene or rigid foamed urethane foam, and the initial thermal conductivity is about 0.02 W / mK to 0.035 W / mK. . Therefore, in order to cool the inside of a predetermined refrigerator to near 4 ° C., it is necessary to secure a thickness of the heat insulation panel of 40 mm or more in order to reduce the amount of heat entering the refrigerator.

  Another object of the present invention is to provide a refrigerator that can reduce the amount of intrusion heat even with heat insulation panels having the same thickness and can maintain the temperature in the refrigerator with a small electricity bill.

  In order to achieve the above object, the refrigerator according to the present invention has a refrigerator main body composed of an assembling box, which includes a top panel including a heat insulating material, a bottom panel, left and right side panels, and a back panel. A stepped portion is formed at the end of the panel, a groove is formed at the corner of the stepped portion, and an adhesive seal material is formed in the groove, and the stepped portions at the end are combined and integrated.

  As a result, the edge of each panel can be prevented from being deformed by the stepped portion, the strength of the mating portion can be ensured by the combination of the stepped portions of the end portions, and the combined assembly can be easily performed. Can prevent cold air leakage from the combined surfaces of the stepped parts due to the adhesive seal material of the groove and groove, prevent condensation due to cold air leakage, increase strength, make assembly easier, stabilize the refrigerator temperature and prevent rust and corrosion This can prevent the manufacturing cost.

  Further, the refrigerator of the present invention includes the top panel, the bottom panel, the left and right side panels, and the back panel, each of which includes a heat insulating material, an outer plate that is bent at the end, the step at the end, and the step. A plastic inner plate having a narrower width than the outer plate integrally provided with the groove at the corner of the part, and a spacer and a heat insulating material are integrally formed between the outer plate and the inner plate. .

  Thereby, a panel with a heat insulating material can be formed with only two parts of the outer plate and the inner plate, and the adhesive sealant can be easily applied by the groove at the corner of the stepped portion, so that the work can be easily performed and the number of components can be reduced. In addition, because the inner plate is made of plastic, heat conduction from the stepped part of the end to the outer plate can be prevented, condensation on the outer plate can be prevented, temperature stabilization and prevention of rust and corrosion can be achieved. it can.

  Further, the refrigerator of the present invention includes the top panel, the bottom panel, the left and right side panels, and the back panel with a heat insulating material, wherein the outer plate is bent at the end, and the inner plate is narrower than the outer plate. A plate, a partition plate in which a plastic thin plate is bent in a Z shape on the outer peripheral portion of the outer plate and the inner plate, and the groove is provided at one corner, and between the outer plate and the inner plate, In the spacer and the heat insulating material, the step portion is integrally formed by the partition plate at the end portions of the outer plate and the inner plate.

  As a result, the adhesive seal material can be easily applied by the groove at the corner of the stepped portion, the work is easy, and the stepped portion at the end is made of a plastic stepped portion, thus preventing heat conduction to the outer plate and By preventing condensation on the plate, it is possible to stabilize the temperature and prevent rust and corrosion.

  Further, the refrigerator of the present invention includes the top panel, the bottom panel, the left and right side panels, and the back panel with a heat insulating material, wherein the outer plate is bent at the end, and the inner plate is narrower than the outer plate. A film-like sheet on the outer periphery of the plate, the outer plate and the inner plate, the spacer between the outer plate and the inner plate, and the heat insulating material; The sheet is formed by integrally forming the stepped portion at the end of the outer plate and the inner plate and the groove at the corner of the stepped portion by a pressing jig when foaming the heat insulating material.

  As a result, the adhesive sealant can be easily applied by the groove at the corner of the stepped portion, the operation is easy, and the stepped portion at the end is made to be a stepped portion of the film-like sheet, thereby preventing heat conduction to the outer plate. It is possible to prevent condensation on the outer plate, stabilize the temperature, and prevent rust and corrosion. Moreover, since it was an inexpensive film-like sheet | seat, manufacturing cost can be reduced.

  Further, the refrigerator of the present invention includes the top panel, the bottom panel, the left and right side panels, and the back panel with a heat insulating material, wherein the outer plate is bent at the end, and the inner plate is narrower than the outer plate. A plate, a seal sash for covering each panel fitting portion inserted in the inner plate, a film-like sheet on the outer plate and an outer peripheral portion of the seal sash inserted in the inner plate, the outer plate and the inner plate With the spacer and the heat insulating material between the plates, the outer sheet and the inner plate of the seal sash outer peripheral portion inserted into the inner plate is pressed between the outer plate and the inner plate by a pressing jig when foaming the heat insulating material. The step portion is formed integrally with the end portion, and the groove is integrally formed with a corner of the step portion.

  As a result, the outer plate, a seal sash for blinding each panel fitting portion inserted in the inner plate, a film-like sheet on the outer periphery of the seal sash inserted in the inner plate, and a pressing jig when foaming the heat insulating material are used for the outer plate. And a stepped portion at the end of the outer periphery of the seal sash inserted into the inner plate, and a groove at the corner of the stepped portion is integrally formed through a film-like sheet. Application is easy, work is easy, and the step on the end is a step on the film sheet, preventing heat conduction to the outer plate, preventing condensation on the outer plate, and stabilizing the temperature And prevention of rust and corrosion. Moreover, since each panel matching part is blinded by the seal sash, the gap between each panel matching part can be prevented and the appearance can be improved.

  Further, the refrigerator of the present invention includes the stepped portion at the end of the panel in the combination of the stepped portions at the respective panel end portions of the top panel, the bottom panel, the left and right side panels, and the back panel. A combination of the top plate and the bottom panel, the outer plate end portion being a U-shaped bent portion, and the U-shaped bent portion having a through-hole from the surface of the outer plate. The upper panel, the bottom panel, and the panel end portion are embedded in the heat insulating material, the inside of the U-shaped bent portion is installed in the same position as the through-hole, and the step portion is the step. The left and right side panels of the combination in the part, the rear panel includes an L-shaped bent part on the outer plate end, a hole in the L-shaped bent part, and a holding part on the inner side, Left and right buried in The face panel and the back panel are provided inside the hole part of the L-shaped bent part by passing the end portion of the outer plate from the through hole of the U-shaped bent part through the hollow holding piece. The end of each panel is fixed by a connecting part attached to the holding part.

  As a result, the stepped portions of each panel end are combined, and the outer plate of each panel end is fixed by a connecting part, so that the stepped portion and the corner of each panel end are engaged and the stepped portion of each panel end It is possible to prevent the end portion from being deformed by the above, and it is possible to secure the strength of the mating portion due to the combination of the stepped portions at the end portions, and it is possible to easily assemble and assemble it easily and to reduce the manufacturing cost. Moreover, heat conduction from the cooled inner plate to the stepped portion outer plate at the end portion can be prevented, condensation on the outer plate can be prevented, temperature in the refrigerator can be stabilized, and rust and corrosion can be prevented. .

  In addition, the refrigerator of the present invention includes the top panel, the bottom panel, the left and right side panels, and the back panel in a combination of the top panel, the bottom panel, and the left and right panels. A corner holding plate with four corners for fixing an end portion of the rear panel side with the side panel to the outer plate of the rear panel, and a side long portion holding plate with a side long portion, and combining each panel It is constructed integrally.

  Thereby, after combining the panels, the corners and side lengths of the four corners on the back of the box were connected to each other by the corner holding plate and the side length holding plate. The panel can be fixed securely, the distortion after the combination of each panel can be prevented, the deformation due to cooling can be prevented, the cold air leakage from the combination surface can be prevented, the condensation on the outer plate can be prevented, the strength can be increased, and the inside of the refrigerator Temperature stabilization and prevention of rust and corrosion.

  Further, the refrigerator of the present invention is a panel in which a vacuum heat insulating material is embedded in a heat insulating material, the outer plate whose end is bent, the inner plate narrower than the outer plate, and the outer plate on the back surface side. The vacuum heat insulating material, the concave portion of the inner plate, the tip of the concave portion abuts on the vacuum heat insulating material, the vacuum heat insulating material is attached and fixed to the back side of the outer plate, and is integrally formed with the heat insulating material. Is.

  As a result, the inner plate recess in the heat insulating material and the tip of the recess abut against the vacuum heat insulating material, and the vacuum heat insulating material is attached and fixed on the back side of the outer plate and foamed integrally with the vacuum heat insulating material. The amount of cooling power consumption can be reduced by reducing the amount of heat absorption, and power can be saved. Further, fixing and assembling can be performed easily, it is easy to assemble, and the manufacturing cost can be reduced.

  In the refrigerator of the present invention, in the panel in which the vacuum heat insulating material is embedded in a heat insulating material, the outer plate end portion is connected to the U-shaped bent portion and the U-shaped bent portion is the surface of the outer plate. The holding piece having a hollow inside disposed in the same position as the through hole in the U-shaped bent portion, a mounting hole in the outer peripheral weld portion of the vacuum heat insulating material, and the vacuum The mounting hole of the heat insulating material is provided between the holding piece having a hollow inside and the through hole of the outer plate on the back side of the outer plate, and is integrally formed with the heat insulating material into the outer plate side. Is.

  As a result, a mounting hole is provided in the outer periphery welded portion of the vacuum heat insulating material, and the vacuum heat insulating material outer peripheral welded portion between the inside and the hollow holding piece installed at the same position as the through hole of the U-shaped bent portion of the outer plate The heat insulation performance can be improved and the amount of cooling power consumption can be reduced by reducing the amount of heat absorbed, so that both the vacuum heat insulating material and the outer periphery welded part are fixed on the back side of the outer plate and integrated with the heat insulating material. Can be achieved. Moreover, the process of the outer periphery welding part of a vacuum heat insulating material can be performed easily, assembly time can be shortened, and manufacturing cost can be reduced.

  The present invention includes a top panel with a heat insulating material, a bottom panel, left and right side panels, a stepped portion at the combination end of each panel of the back panel, a groove at the corner of the stepped portion, and an adhesive sealant in the groove As the assembly type heat insulation box is formed by combining the stepped portions of each panel, alignment and fixing can be facilitated by the stepped portion of each panel end, and deformation of the end by the stepped portion can be prevented. By combining the stepped portions, the creepage distance of the combined portion can be increased and deformation of the end portion can be prevented, and the combined portion of the stepped portions can be sealed by the adhesive seal material applied in the groove at the stepped portion corner, and easy to assemble, Prevents misalignment of each panel, prevents heat from entering the refrigerator from outside the refrigerator and leaks cold air from the refrigerator, prevents condensation, reduces manufacturing costs, stabilizes the refrigerator temperature, and prevents rust and corrosion. Prevention can be achieved.

  In addition, since the present invention integrally provides a stepped portion at the end of the inner plate and a groove at the corner of the stepped portion, a panel with a heat insulating material can be formed with only two parts of the outer plate and the inner plate. Adhesive sealing material can be easily applied by the groove at the corner, making it easy to work and reducing parts. Further, the inner plate is made of plastic, so that heat conduction from the stepped portion of the end portion to the outer plate can be prevented, condensation on the outer plate can be prevented, and rust and corrosion can be prevented. Also, by combining the stepped portions, it is possible to increase the creepage distance of the combined portion and ensure the strength, and by combining the stepped portions, two grooves at the stepped portion corners can be provided, and adhesive seals to the groove portions at the stepped portion corners By applying the material, it is possible to prevent the cold air from leaking out of the cabinet and stabilize the temperature in the refrigerator.

  In addition, the present invention provides a plastic stepped portion at the outer periphery of the outer plate and the inner plate by bending a plastic Z-shape with a thin partition plate with a groove in one corner, Therefore, the adhesive sealing material can be easily applied by the groove at the corner of the stepped portion, the assembly is easy, and the manufacturing cost can be reduced. Since the partition plate is made of plastic, heat conduction from the stepped portion of the end portion to the outer plate can be prevented, condensation on the outer plate can be prevented, and rust and corrosion can be prevented. Also, by combining the stepped portions, it is possible to increase the creepage distance of the combined portion and ensure the strength, and by combining the stepped portions, two grooves at the stepped portion corners can be provided, and adhesive seals to the groove portions at the stepped portion corners By applying the material, it is possible to prevent the cold air from leaking out of the cabinet and stabilize the temperature in the refrigerator.

  In addition, the present invention provides a film-like sheet on the outer peripheral portion of the outer plate and the inner plate, a stepped portion on the end portion of the outer plate and the outer peripheral portion of the outer plate and the inner plate by a pressing jig when foaming the heat insulating material, and an inexpensive film with the stepped portion Since a groove is integrally formed in the corner of the step portion via a film-like sheet, the adhesive seal material can be easily applied by the groove at the corner of the step portion, and a mold is not required and the assembly is performed. It is easy and the manufacturing cost can be reduced. Further, since the step portion is made of a film-like sheet, heat conduction from the step portion at the end portion to the outer plate can be prevented, condensation on the outer plate can be prevented, and rust and corrosion can be prevented. Also, by combining the stepped portions, it is possible to increase the creepage distance of the combined portion and ensure the strength, and by combining the stepped portions, two grooves at the stepped portion corners can be provided, and adhesive seals to the groove portions at the stepped portion corners By applying the material, it is possible to prevent the cold air from leaking out of the cabinet and stabilize the temperature in the refrigerator.

  The present invention also includes an outer plate, a seal sash for hiding each panel alignment portion inserted in the inner plate, a film-like sheet on the outer periphery of the seal sash inserted in the inner plate, and a pressing jig for foaming the heat insulating material. The outer plate and the stepped portion at the end of the outer peripheral portion of the seal sash inserted into the inner plate, and the stepped portion is an inexpensive film-like sheet, and the groove is integrated into the corner of the stepped portion via the film-like sheet Since it is formed, the adhesive sealant can be easily applied by the groove at the corner of the stepped portion, the mold is not required, the assembly is easy, and the manufacturing cost can be reduced. Further, since the step portion is made of a film-like sheet, heat conduction from the step portion at the end portion to the outer plate can be prevented, condensation on the outer plate can be prevented, and rust and corrosion can be prevented. Also, by combining the stepped portions, it is possible to increase the creepage distance of the combined portion and ensure the strength, and by combining the stepped portions, two grooves at the stepped portion corners can be provided, and adhesive seals to the groove portions at the stepped portion corners By applying the material, it is possible to prevent the cold air from leaking out of the cabinet and stabilize the temperature in the refrigerator. Further, since the panel sashes are blindfolded by the seal sash, gaps between the panel alignment parts can be prevented, and the appearance can be improved.

  Further, the present invention provides a combination of a top panel, a bottom panel, and a U-shaped bent part at the outer plate end, and a surface of the outer plate. The left and right side panels are combined in the heat insulating material, and the panel end is in the stepped part, and the rear panel is L-shaped on the outer plate end. A bent part, a hole in the L-shaped bent part, and a holding part inside are embedded in the heat insulating material, and the step part of each panel is put on the panel end part by combining the step parts of each panel. Through the through hole from the surface of the panel outer plate that goes up, the inside passes through the holding piece with the hollow inside, and the panel end is fixed by combining the stepped parts of each panel with the holding parts inside the panel in the stepped part to make a heat insulating box Therefore, the combination fixing of the stepped portions at the end of each panel is fixed to the panel gold The stepped parts at the panel end can be securely fixed by the outer panels made of plastic, and the stepped parts at each panel end can be prevented from being deformed by cooling or the like at each panel end by securing the strength of the mating part. It can prevent cold air leakage, prevent condensation on the outer plate, stabilize the temperature in the refrigerator, and prevent rust and corrosion. In addition, it is easy to assemble and assemble easily, and the manufacturing cost can be reduced.

  In the present invention, after the panels are combined, the outer corners of the four corners and the side lengths on the back of the box body are fixed to each other by the corner holding plate and the side length holding plate. , Prevents gaps at the end of each panel, prevents distortion after combining each panel, prevents deformation due to cooling, prevents air leakage from the combined surface, prevents condensation on the outer plate, Strength can be increased, temperature in the refrigerator can be stabilized, and rust and corrosion can be prevented.

  In addition, the present invention has a concave portion of the inner plate in the heat insulating material, the tip of the concave portion is brought into contact with the vacuum heat insulating material, and the vacuum heat insulating material is attached and fixed on the back side of the outer plate, and foamed integrally with the vacuum heat insulating material. With the vacuum heat insulating material, the amount of heat entering the panel can be reduced and the heat insulation performance can be improved, the amount of cooling power consumption due to the reduction of the heat absorption amount can be reduced, and power can be saved. Further, fixing and assembling can be performed easily, it is easy to assemble, and the manufacturing cost can be reduced.

  In addition, the present invention provides a vacuum heat insulating material provided with a mounting hole in the outer periphery welded portion of the vacuum heat insulating material, and the inside of the outer plate placed at the same position as the through hole of the U-shaped bent portion of the outer plate with the holding piece of the hollow The mounting holes of the outer periphery welded parts are aligned, and both the vacuum heat insulating material and the outer peripheral welded part are fixed to the back side of the outer plate and integrated with the heat insulating material, so the heat insulating performance can be improved by reducing the amount of heat entering the panel with the vacuum heat insulating material, By reducing the amount of heat absorbed, the amount of power consumed for cooling can be reduced, and power can be saved. Moreover, the process of the outer periphery welding part of a vacuum heat insulating material can be performed easily, fixing and an assembly time can be shortened, it is easy to assemble, and manufacturing cost can be reduced.

  In the refrigerator according to claim 1, the refrigerator main body formed of an assembly-type box is configured by a top panel including a heat insulating material, a bottom panel, left and right side panels, and a back panel. A stepped portion at the end, a groove at the corner of the stepped portion, and an adhesive sealant in the groove, the stepped portions at the ends are combined and integrated, and an upper surface containing a heat insulating material Step portions at the end of each of the panel, the bottom panel, the left and right side panels, and the back panel are provided with step portions and grooves at the corners of the step portions. Because they are combined into a unitary box, alignment and fixing can be facilitated by the stepped portion of each panel end, deformation of the end by the stepped portion can be prevented, and the combined portion by combining the stepped portions of the end portions Can be secured and can be easily assembled and assembled. Can prevent cold air leakage from the combination surface of the stepped parts due to the adhesive seal material of the groove and groove part, can prevent condensation due to cold air leakage, increase strength, make assembly easier, stabilize the temperature in the refrigerator and rust and corrosion The manufacturing cost can be reduced.

  In addition to the invention of claim 1, the invention of the refrigerator of claim 2 is bent at the end in the top panel, the bottom panel, the left and right side panels, and the back panel with a heat insulating material. Between the outer plate, the inner plate made of plastic having a narrower width than the outer plate having the stepped portion at the end, and the groove integrally formed at the corner of the stepped portion, and between the outer plate and the inner plate Since it is formed integrally with the spacer and the heat insulating material, the step part at the end of the inner plate and the groove at the corner of the step part are integrally provided, so only two parts of the outer plate and the inner plate are used. A panel with a heat insulating material can be formed, and the adhesive seal material can be easily applied by the groove at the corner of the stepped portion, the operation is easy, and the number of parts can be reduced. In addition, because the inner plate is made of plastic, heat conduction from the stepped part of the end to the outer plate can be prevented, condensation on the outer plate can be prevented, temperature stabilization and prevention of rust and corrosion can be achieved. it can.

  In addition to the invention of claim 1, the refrigerator according to claim 3 includes the top panel, the bottom panel, the left and right side panels, and the back panel with a heat insulating material, and the ends thereof are bent. A partition plate in which a plastic thin plate is bent into a Z shape on the outer periphery of the outer plate and the inner plate, and the groove is provided at one corner. And the spacer and the heat insulating material between the outer plate and the inner plate, and the step portion is integrally formed by the partition plate at the end of the outer plate and the inner plate. Since the outer plate and the inner plate are bent in plastic Z-shape on the outer periphery of the outer plate and the thin plate partition plate with a groove at one corner, the end step is provided, so the adhesive seal is provided by the groove at the step corner. Easy to apply material, easy to work with, the stepped part at the end is made of plastic Having to prevent heat conduction to the outer skin, to prevent condensation on the outer plate, it is possible to prevent the stabilization of temperature and rust and corrosion.

  In addition to the invention of claim 1, the invention of the refrigerator of claim 4 includes the top panel, the bottom panel, the left and right side panels, and the back panel with heat insulating material, and the ends thereof are bent. The outer plate, the inner plate narrower than the outer plate, a film-like sheet on the outer periphery of the outer plate and the inner plate, the spacer between the outer plate and the inner plate, With the heat insulating material, the stepped portion is formed at the end portion of the outer plate and the inner plate by the pressing jig when foaming the heat insulating material, and the groove is formed at the corner of the stepped portion. Are formed integrally, a film-like sheet on the outer periphery of the outer plate and the inner plate, a step portion at the end of the outer plate and the outer periphery of the inner plate by a pressing jig when foaming the heat insulating material, and a step portion Since the groove is integrally formed in the corner of the film via a film-like sheet, the groove at the corner of the step portion The adhesive sealant can be applied more easily, the work is easier, and the step on the end is a step on the film-like sheet, preventing heat conduction to the outer plate and preventing condensation on the outer plate. Thus, temperature stabilization and prevention of rust and corrosion can be achieved. Moreover, since it was an inexpensive film-like sheet | seat, manufacturing cost can be reduced.

  In addition to the invention of claim 1, the invention of the refrigerator of claim 5 includes the top panel including the heat insulating material, the bottom panel, the left and right side panels, and the back panel. The outer plate, the inner plate narrower than the outer plate, the seal sash for blinding each panel alignment portion inserted in the inner plate, and the outer peripheral portion of the seal sash inserted in the outer plate and the inner plate The film-like sheet on the outer periphery of the seal sash inserted into the inner plate with the spacer and the heat insulating material between the film-like sheet, the outer plate and the inner plate is foamed with a heat insulating material. The pressing step jig is formed integrally with the stepped portion at the end of the outer plate and the inner plate and the groove at the corner of the stepped portion, and inserted into the outer plate and the inner plate. Sealing cover for the panel alignment part And a film-like sheet on the outer periphery of the seal sash inserted into the inner plate, a stepped portion at the end of the outer peripheral portion of the seal sash inserted into the outer plate and the inner plate by a pressing jig when foaming the heat insulating material, and a step Since the groove is integrally formed in the corner of the part via the film-like sheet, the adhesive sealant can be easily applied by the groove in the stepped part corner, the work is easy to work, and the stepped part at the end is formed into a film-like shape. Since the stepped portion of the sheet is used, heat conduction to the outer plate can be prevented, condensation on the outer plate can be prevented, and temperature stabilization and prevention of rust and corrosion can be achieved. Moreover, since each panel matching part is blinded by the seal sash, the gap between each panel matching part can be prevented and the appearance can be improved.

  The invention of the refrigerator according to claim 6 is the panel end of each of the top panel, the bottom panel, the left and right side panels, and the back panel with the heat insulating material according to any one of claims 1 to 5. In the combination of the stepped portions of the part, the stepped portion of the panel end portion is placed on the panel end portion of the combination of the upper surface panel, the bottom panel, the outer plate end portion is a U-shaped bent portion, The U-shaped bent portion has a through hole from the surface of the outer plate, and the inside of the U-shaped bent portion installed at the same position as the through hole has a hollow holding piece in the heat insulating material. The embedded upper surface panel, the bottom surface panel, the left and right side panels in which the panel end portion is combined in the stepped portion, and the rear panel, the outer plate end portion is an L-shaped bent portion, and the L-shaped bent portion. Hole in the inside, inside The left and right side panels embedded in the heat insulating material, and the back panel, and the outer plate end portion in the holding piece that is hollow from the through hole of the U-shaped bent portion. , The end of each panel is fixed with a connecting part attached to the holding part provided inside the hole of the L-shaped bent part, and the stepped part of each panel end is combined, Since the outer plate of each panel end is fixed by a connecting part, the stepped portion and the corner of each panel end are engaged, and the end portion can be prevented from being deformed by the stepped portion of each panel end. The strength of the mating portion can be ensured by the combination of the above, and the assembly can be easily assembled and assembled, so that the manufacturing cost can be reduced. Moreover, heat conduction from the cooled inner plate to the stepped portion outer plate at the end portion can be prevented, condensation on the outer plate can be prevented, temperature in the refrigerator can be stabilized, and rust and corrosion can be prevented. .

  The invention of the refrigerator according to claim 7 includes the top panel, the bottom panel, the left and right side panels, and the back panel including the heat insulating material according to any one of claims 1 to 6. In the combination, a corner holding plate having four corners for fixing the back panel side end portions of the top panel, the bottom panel, and the left and right side panels to the outer plate of the back panel; A long side long side holding plate is provided, and each panel is combined and configured integrally. After combining the panels, the corners of the four corners on the back of the box and the side long side are the corner holding plate. Since the outer plate of each panel is connected to each other with the holding plate of the side long part, the fixing of each panel can be ensured, the distortion after the combination of each panel can be prevented, the deformation due to cooling can be prevented, and Can prevent cold air leakage, to the outer plate To prevent condensation, raising the strength, it is possible to prevent the stabilization and rust and corrosion temperature inside the refrigerator.

  The invention of the refrigerator according to claim 8 is the panel in which the vacuum heat insulating material is embedded in the heat insulating material according to any one of claims 1 to 7, and the outer plate having the bent end and the outer The inner plate that is narrower than the plate, the vacuum heat insulating material on the back surface side of the outer plate, the concave portion of the inner plate, and the tip of the concave portion are in contact with the vacuum heat insulating material and the vacuum on the back surface side of the outer plate A heat insulating material is attached and fixed, and the heat insulating material is integrally formed with the heat insulating material. Since the foam is integrally foamed with the vacuum heat insulating material, the heat insulating performance can be improved, the amount of cooling power consumption can be reduced by reducing the amount of heat absorbed, and power can be saved. Further, fixing and assembling can be performed easily, it is easy to assemble, and the manufacturing cost can be reduced.

  The invention of the refrigerator according to claim 9 is the panel in which the vacuum heat insulating material is embedded in the heat insulating material according to any one of claims 1 to 8, wherein the end portion of the outer plate is formed in the U shape. The holding piece having a bent portion and the U-shaped bent portion provided with the through hole from the surface of the outer plate, and the inside of the U-shaped bent portion disposed at the same position as the through hole is hollow. And an attachment hole in the outer peripheral weld portion of the vacuum heat insulating material, and the attachment hole of the vacuum heat insulating material is provided between the holding piece having a hollow inside and the through hole of the outer plate on the back side of the outer plate. The heat insulating material is integrally formed in the outer plate side, and is provided with a mounting hole in the outer peripheral weld portion of the vacuum heat insulating material, at the same position as the through hole of the U-shaped bent portion of the outer plate. Between the installed interior and the holding piece of the cavity, the vacuum welded outer periphery welded part Aligning the attachment holes, both the vacuum heat insulating material and the outer periphery welded part are fixed to the back side of the outer plate and integrated with the heat insulating material, so that the heat insulating performance can be improved, the amount of cooling power consumption can be reduced by reducing the heat absorption, and power saving Can be planned. Moreover, the process of the outer periphery welding part of a vacuum heat insulating material can be performed easily, assembly time can be shortened, and manufacturing cost can be reduced.

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

(Embodiment 1)
FIG. 1 is an external perspective view of a refrigerator according to Embodiment 1 of the present invention. FIG. 2 is a vertical cross-sectional view of the left side when the refrigerator according to the embodiment is cut left and right as seen from the right. FIG. 3 is a main part longitudinal sectional view showing a front part of the panel in the refrigerator according to the embodiment. FIG. 4 is a main part longitudinal sectional view showing a panel combination part at four corners of the top, bottom, left, and right in the refrigerator according to the embodiment. FIG. 5 is a main part longitudinal cross-sectional view showing a rear panel combination outer periphery in the refrigerator of the same embodiment.

  FIG. 6 is an external perspective view when the panel of the refrigerator according to the embodiment is disassembled. FIG. 7 is an external perspective view when the refrigerator panel according to the embodiment is combined. FIG. 8 is an external perspective view when the rear reinforcing plate of the refrigerator according to the embodiment is disassembled. FIG. 9 is a longitudinal sectional view of the rear side when the top panel of the refrigerator according to the embodiment is cut back and forth as seen from the front. FIG. 10 is an external perspective view of the vacuum heat insulating material in the refrigerator according to the embodiment.

  As shown in FIGS. 1 to 10, the refrigerator 21 has a storage room 27 having a front surface opened by a combination of a top panel 23 including a heat insulating material 22, a bottom panel 24, left and right side panels 25, and a back panel 26. The formed heat insulation box 28 and a door 29 for opening the front surface of the storage chamber 27 are provided.

  A space for the cooling functional component storage box 30 is provided below the heat insulating box 28. On the inner surface of the storage chamber 27, a cooling unit storage chamber 31 is partitioned and an evaporator 33 is installed on the cold air inlet 32 side of the cooling unit storage chamber 31, and a cold air outlet 34 is installed on the outlet side.

  The top panel 23, the bottom panel 24, the left and right side panels 25, and the back panel 26 are made of a heat insulating material including an outer plate 35, an inner plate 36, and a spacer 37 between the outer plate 35 and the inner plate 36. 22 is integrally foamed.

  The top panel 23 and the bottom panel 24 are made of a metal surface-treated outer plate 35 such as an iron plate, a groove-like bent portion 38 into which the inner plate 36 is inserted on the front side, and left and right and rear side end portions. A U-shaped bent portion 40 of the bent outer plate 39 and a through-hole 41 from the surface of the outer plate 35 are provided in the U-shaped bent portion 40, and the through-hole 41 is formed in the U-shaped bent portion 40. A holding piece 42 having a hollow inside provided at the same position is provided, and a plastic inner plate 36 narrower than the outer plate 35 has a flange to be inserted into a groove-like bent portion 38 of the outer plate 35 on the front side. A step portion 44 is formed integrally with the portion 43, the left and right ends, and the rear side end portion, and a groove 45 is provided at a corner of the step portion 44.

  Further, the left and right side panels 25 and the back panel 26 are bent at the outer plate 35 at the front side of the groove-shaped bent portion 38 and at the rear side ends of the left and right side panels 25. The U-shaped bent portion 40 of the outer plate 39 and the U-shaped bent portion 40 are provided with a through-hole 41 from the surface of the outer plate 35, and the same as the through-hole 41 in the U-shaped bent portion 40. The inside of the installed position is provided with hollow holding pieces 42, the upper and lower ends of the left and right side panels 25 and the upper and lower left and right ends of the back panel 26 are provided with L-shaped bent portions 46 of the bent outer plate 39, The L-shaped bent portion 46 is provided with a hole 47 and a holding part 48 on the inner side, and the inner plate 36 made of plastic having a narrower width than the outer plate 35 has a groove-like bent portion 38 of the outer plate 35 on the front side. On the flange 43 to be inserted into the left and right side panels 25 Step portions 44 are formed at the upper and lower and right and left ends of the rear panel 26 and the grooves 45 at the corners of the step portions 44, and the step portions are formed on the left and right side panels 25 and the rear panel 26. A sealing foam 49 such as a flexible urethane foam is brought into contact with the U-shaped bent portion 40 and the L-shaped bent portion 46 of the outer plate 39 which is bent at the end of the outer plate, and in the groove-shaped bent portion 38 of the outer plate 35. Is installed.

  Further, the heat insulating material 22 of the top panel 23, the bottom panel 24, the left and right side panels 25, and the back panel 26 is applied with the vacuum heat insulating material 50 against the back surface side of the outer plate 35, and the components inside the storage chamber 27 are placed. The tip of the recessed portion 51 of the inner plate 36 to be attached is brought into contact with the vacuum heat insulating material 50 to attach and fix the vacuum heat insulating material 50 on the back side of the outer plate 35, and the heat insulating material 22 is interposed between the inner plate 36 and the vacuum heat insulating material 50. It is provided by foaming together.

  The vacuum heat insulating material 50 covers a core material made of at least one material selected from a fiber material, a resin foam material, and a granular material with an outer covering material 52 having a gas barrier property, and vacuum-encloses the inside by depressurizing the inside. It is configured as follows.

  The covering material 52 uses a metal foil such as aluminum or a film in which a metal or an inorganic oxide is vapor-deposited on a gas barrier layer, a film such as unstretched polypropylene as a heat-welded layer on the inner layer, and a protective layer on the outermost layer As a laminated film in which films such as nylon and polyethylene terephthalate are laminated.

  Further, in the heat insulating material 22 of the top panel 23, the bottom panel 24, the left and right side panels 25, and the back panel 26, the vacuum heat insulating material 50 is connected to the through hole 41 of the U-shaped bent portion 40 of the outer plate 35. The mounting hole 54 of the outer periphery welded portion 53 that is vacuum-sealed by the outer cover material 52 of the vacuum heat insulating material 50 is aligned with the holding piece 42 having the hollow inside disposed at the same position, and the vacuum heat insulating material 50 and the outer peripheral welded portion 53 are aligned. Both are fixed to the back side of the outer plate 35, and the space between the inner plate 36 and the vacuum heat insulating material 50 is integrally foamed with the heat insulating material 22.

  When the vacuum welded outer peripheral welded portion 53 of the vacuum heat insulating material 50 is embedded in the heat insulating material 22, it easily breaks in the heat insulating material 22, bends to the main body side of the vacuum heat insulating material 50, and is fixed with a tape or the like. The mounting hole 54 is provided in the outer periphery welded portion 53 and used for fixing the vacuum heat insulating material 50.

  Further, an adhesive seal material 55 is applied to the groove 45 at the corner of the panel end step 44 of the top panel 23, the bottom panel 24, the left and right side panels 25, and the back panel 26 containing the heat insulating material 22. The combination of the top panel 23 and the bottom panel 24 in which the stepped portion 44 is placed on the end of the panel, the left and right side panels 25 in which the panel end is combined in the stepped portion 44, and the back panel 26, the step at the end of the panel. The combination of the portion 44 mounted on the panel end and the left and right side panels 25 in which the panel end is combined in the stepped portion 44, the stepped portions 44 at the respective panel ends are combined, and the stepped portion 44 at the panel end is the panel end The connecting part 56 is inserted into the through-hole 41 at the end of the panel that is placed on the part, and the holding piece 42 that is hollow inside, and the hole 47 at the end of the combined panel is inside the step part 44. Holding It is mounted connected and fixed to the article 48.

  In addition, the corner holding plates at the four corners that connect the top panel 23, the bottom panel 24, the ends of the left and right side panels 25 on the back panel 26 side, and the outer plate 39 of the rear panel 26 to each other. 57 and the side length portion holding plate 58 of the side length portion are installed on the back surface portion.

  Further, the refrigerator 21 can exchange heat from the inner surface to the top panel 23, the bottom panel 24, and the left and right side panels 25 in the outer peripheral portion of the opening of the storage chamber 27 facing the door 29 in the heat insulating box 28. An abutting outer peripheral pipe 59 for circulating high-temperature refrigerant is embedded in the heat insulating material 22.

  The door 29 containing the heat insulating material 22 covering the front surface of the opening of the storage chamber 27 of the heat insulating box 28 is installed so as to be opened and closed via a hinge 60 attached to the heat insulating box 28.

  The door 29 is provided with a cold air sealing gasket 61 containing a magnet made of a flexible material at a position in contact with the outer peripheral portion of the opening of the storage chamber 27, and a door back plate 62 inside the cold air sealing gasket 61.

  In the storage room 27, a storage room shelf 63 is installed in the receiving part of the left and right wall surfaces of the storage room 27 while keeping the space with the storage room 27.

  In addition, a cool air circulation fan 64 is provided at the same height as the cool air discharge port 34 of the cooling unit storage chamber 31 on the inner surface of the storage chamber 27.

  The cooling functional component storage box 30 at the bottom of the refrigerator 21 includes a compressor 65, an evaporating dish 66 on the compressor 65, a condenser 67, a capillary tube as an expansion mechanism, a condenser cooling fan 68, and cooling A control panel 69 is installed.

  The compressor 65, the condenser 67, the high-temperature refrigerant circulation outer pipe 59, the capillary tube, and the evaporator 33 are sequentially connected in an annular manner, and a refrigeration cycle (vapor compression refrigeration system) as a cooling means for cooling the storage chamber 27. ).

  About the refrigerator of this Embodiment comprised as mentioned above, the operation | movement is demonstrated below.

  Simultaneously with turning on the power of the cooling control panel 69, the compressor 65 is activated to operate the refrigeration cycle, and the evaporator 33 performs cooling. At this time, the cool air circulation fan 64 circulates the air in the storage chamber 27 through the cool air suction port 32, the evaporator 33, and the cool air discharge port 34 into the storage chamber 27 to cool to about 4 ° C.

  When the food is cooled, first, when the food is placed on the storage chamber shelf 63 in the storage chamber 27 and the door 29 is closed, the door 29 activates the door open / close detection means and rotates the cooling air circulation fan 64. The cold air flows into the storage chamber 27 from the cold air discharge port 34, and the food is covered with the cold air.

  The cold air cooled by the evaporator 33 is not leaked by the door 29 with the gasket 61 for the cold air seal at the outer peripheral portion of the front opening of the storage chamber 27.

  Therefore, the food in the storage room 27 is cooled. Therefore, food can be stored in a good state without temperature rise.

  In the refrigerator of the present embodiment, the storage room 27 of the heat insulating box 28 having the front surface opened by combining the top panel 23, the bottom panel 24, the left and right side panels 25, and the back panel 26 with the heat insulating material 22 is provided with each heat insulating material. The panel combination part is sealed by applying an adhesive sealing material 55.

  As a result, since the gap due to the deformation of the heat insulating panel combination portion is prevented, there is no leakage of the cold air cooled by the evaporator 33 in the cooling portion storage chamber 31, and further, the cooling air passes through the storage chamber 27 and is cooled from the storage chamber 27. Since it is possible to suppress a decrease in the amount of cool air circulation that returns to the part storage chamber 31 and cools the storage chamber 27, it is possible to prevent a cooling decrease in the storage chamber 27.

  In addition, the storage chamber 27 of the heat insulating box 28 having an open front is configured to combine and assemble the top panel 23, the bottom panel 24, the left and right side panels 25, and the back panel 26 with the heat insulating material 22. By changing the external dimensions of the top panel 23, the bottom panel 24, the left and right side panels 25, and the back panel 26 containing the material 22, the storage chamber 27 of the heat insulating box 28 can be freely formed. The jig for injecting and foaming can also be simplified, and the external dimensions of the jig can be changed easily, so that it is easy to process, accommodates various sizes, and reduces manufacturing costs. Is possible.

  Further, since the door 29 can be brought into contact with the position of the outer peripheral portion of the opening portion of the storage chamber 27 by the cold air sealing gasket 61 made of a flexible material and incorporating a magnet, the leakage of the cold air from the storage chamber 27 can be eliminated.

  In the refrigerator of the present embodiment, the cooling refrigerant is compressed by the compressor 65, becomes a high temperature, is sent to the condenser 67, is decompressed by the high-temperature refrigerant circulation outer pipe 59, and the capillary tube, passes through the evaporator 33, Return to compressor 65.

  As a result, the outer surface where the outer peripheral pipe 59 for circulating the high-temperature refrigerant is installed in the heat insulating material 22 of the top panel 23, the bottom panel 24, and the left and right side panels 25 is heated by the high-temperature refrigerant.

  For this reason, the heat conduction from the storage chamber 27 can suppress the effect of cooling the outer surfaces of the top panel 23, the bottom panel 24, and the left and right side panels 25, thereby preventing condensation on the heat insulating box 28. It becomes possible.

  As described above, the refrigerator according to the present embodiment has a heat insulation in which the storage chamber 27 having an open front is formed and the outer plate 35 and the inner plate 36 and the spacer 37 between the outer plate 35 and the inner plate 36 are integrally foamed. The top panel 23 containing the material 22, the bottom panel 24, the left and right side panels 25, the heat insulating box 28 combining the back panel 26, the door 29 for opening and closing the opening of the storage chamber 27, and the storage chamber 27 In a refrigerator 21 provided with an evaporator 33 of a refrigeration cycle (vapor compression refrigeration system) as a cooling means for cooling the top panel 23, the bottom panel 24, the outer panel 35, and the inner panel on the front side 36, a U-shaped bent portion 40 of the outer plate 39 which is bent at the left and right and rear side ends, and a U-shaped bent portion 40 from the surface of the outer plate 35. Through hole 41 and U-shaped bent portion 4 A holding piece 42 having a hollow inside and installed in the same position as the through hole 41 and a plastic inner plate 36 narrower than the outer plate 35 are formed on the front side of the groove-shaped bent portion 38 of the outer plate 35. The flange portion 43 to be inserted, the step portion 44 at the left and right and back side end portions, the groove 45 at the corner of the step portion 44, the left and right side panels 25, the back panel 26, the outer plate 35, the front side A groove-shaped bent portion 38 into which the inner plate 36 is inserted, a U-shaped bent portion 40 of the outer plate 39 bent at the rear side end portions of the left and right side panels 25, and a U-shaped bent portion 40. A through-hole 41 from the surface of the outer plate 35, a holding piece 42 having a hollow inside installed in the same position as the through-hole 41 in the U-shaped bent portion 40, upper and lower end portions of the left and right side panels 25, The L-shape of the outer plate 39 that is bent at the top, bottom, left, and right ends of the back panel 26 The bent portion 46, the L-shaped bent portion 46, the hole 47, the holding component 48 on the inner side, and the plastic inner plate 36 narrower than the outer plate 35 are formed in the groove-like shape of the outer plate 35 on the front side. A flange portion 43 to be inserted into the bent portion 38, a step portion 44 at the top and bottom and back side end portions of the left and right side panels 25 and a top and bottom and left and right end portions of the back panel 26, a groove 45 at the corner of the step portion 44, and a step The left and right side panels 25, the U-shaped bent portion 40 of the outer plate 39 bent at the end of the outer plate 35 of the back panel 26, and the L-shaped bent portion 46 are in contact with the groove shape of the outer plate 35. A sealing foam 49 is provided in the bent portion 38 of the above.

  In the refrigerator of the present embodiment, the top panel 23 and the outer plate 35 of the bottom panel 24 are a groove-like bent portion 38 into which the inner plate 36 is inserted on the front side, and an outer plate bent on the left and right and rear side ends. 39, a U-shaped bent portion 40, a U-shaped bent portion 40 with a through-hole 41 from the surface of the outer plate 35, and the inside of the U-shaped bent portion 40 is hollow at the same position as the through-hole 41. The plastic inner plate 36 narrower than the outer plate 35 has a flange portion 43 inserted into the groove-shaped bent portion 38 of the outer plate 35 on the front side, and left and right and rear side end portions. The step portions 44, the corners of the step portions 44 are grooves 45, the left and right side panels 25, the back panel 26, the outer plate 35, the groove-shaped bent portion 38 into which the inner plate 36 is inserted on the front side, The U-shape of the outer plate 39 bent at the rear side end portions of the left and right side panels 25 A bent part 40, a U-shaped bent part 40, a through hole 41 from the surface of the outer plate 35, and a U-shaped bent part 40 are provided with a holding piece 42 having a hollow inside at the same position as the through hole 41. The upper and lower ends of the left and right side panels 25, the upper, lower, left and right ends of the back panel 26 are bent at the L-shaped bent portion 46 of the outer plate 39, and the L-shaped bent portion 46 has a hole 47 and a holding part inside. 48, and the plastic inner plate 36, which is narrower than the outer plate 35, has a flange portion 43 to be inserted into the groove-shaped bent portion 38 of the outer plate 35 on the front side, and the upper and lower sides and the rear side of the left and right side panels 25. The upper and lower and left and right end portions of the end portion and the back panel 26 are stepped portions 44, and the corners of the stepped portion 44 are grooves 45, and the stepped portions are formed by bending the left and right side panels 25 and the end portions of the outer plate 35 of the rear panel 26. A U-shaped bent portion 40 of the plate 39; Since the seal form 49 is provided and sealed in the groove-like bent portion 38 of the outer plate 35 and a gap is formed between the outer plate 35 and the inner plate 36 by the spacer 37. The combination of the inner plate 36 and the inner plate 36 can be simplified, and when the foam is integrally formed with the heat insulating material 22, the leakage of the heat insulating material 22 can be prevented from joining the outer plate 35 and the inner plate 36, and both the outer plate 35 and the inner plate 36 can be flat. The jig for injecting and foaming the heat insulating material 22 can also be simplified, and it is easy to assemble and process, and the manufacturing cost can be reduced. Further, the inner plate 36 on the side of the storage chamber 27 is made of plastic, so that heat conduction due to cooling can be reduced, and heat conduction from the inner plate 36 to the outer plate 35 can be achieved by increasing the creepage distance at the step portion 44 of the inner plate 36. Therefore, it is possible to prevent condensation on the outer plate 35 and stabilize the temperature and prevent rust and corrosion.

  As described above, the refrigerator according to the present embodiment includes the vacuum heat insulating material 50 in the heat insulating material 22 of the top panel 23, the bottom surface panel 24, the left and right side panels 25, and the back panel 26. And the tip of the recess 51 of the inner plate 36 for mounting the components inside the storage chamber 27 is in contact with the vacuum heat insulating material 50, and the vacuum heat insulating material 50 is attached and fixed to the back side of the outer plate 35, and the inner plate 36 and the vacuum heat insulating material are fixed. 50 is formed by integrally foaming with the heat insulating material 22, and the vacuum heat insulating material 50 is provided in the heat insulating material 22 of the top panel 23, the bottom panel 24, the left and right side panels 25, and the back panel 26. An outer periphery welded portion 53 that is vacuum-sealed with an outer cover material 52 of a vacuum heat insulating material 50 between the inside of the outer plate 35 and the holding piece 42 that is hollow at the same position as the through hole 41 of the U-shaped bent portion 40. The mounting holes 54 are aligned with the vacuum heat insulating material 50. Circumferential weld portion 53 is fixed to the outer plate 35 the back side together, those provided by foaming between the inner plate 36 and the vacuum heat insulating material 50 integrally with the heat insulating material 22.

  In the refrigerator of the present embodiment, the top of the top panel 23, the bottom panel 24, the left and right side panels 25, the heat insulating material 22 of the back panel 26, and the tip of the recess 51 of the inner plate 36 contact the vacuum heat insulating material 50. The vacuum heat insulating material 50 is attached and fixed on the back surface side of the outer plate 35 in contact with it, and the vacuum heat insulating material 50 is installed at the same position as the through hole 41 of the U-shaped bent portion 40 of the outer plate 35 to maintain the cavity. The mounting hole 54 of the outer periphery welded portion 53 of the vacuum heat insulating material 50 is aligned with the piece 42, and both the vacuum heat insulating material 50 and the outer peripheral welded portion 53 are fixed to the back side of the outer plate 35, and the inner plate 36 and the initial heat conduction Since the space between the vacuum heat insulating material 50 having a rate of 0.0025 W / mK and a thickness of 12 mm is integrally foamed with the heat insulating material 22, the heat insulating material 22 is made of rigid foamed urethane foam, and the initial thermal conductivity is about 0. 0. 02W / mK ~ 0.035 / MK can improve the heat insulating performance by the vacuum heat insulating material 50 from, it is possible to reduce the penetration amount of heat into the storage chamber 27, it is possible to reduce the cooling power consumption by the heat absorption amount decreased, it is possible to achieve power saving.

  As described above, the refrigerator according to the present embodiment has an adhesive seal in the groove 45 at the corner of the panel edge step 44 of the top panel 23, the bottom panel 24, the left and right side panels 25, and the back panel 26 containing the heat insulating material 22. The material 55 is applied, and the combination of the top panel 23 and the bottom panel 24 where the stepped portion 44 on the panel end rests on the panel end, the left and right side panels 25 combined with the panel end within the stepped portion 44, The rear panel 26, the combination of the stepped portion 44 at the end of the panel resting on the end of the panel, and the left and right side panels 25 in which the panel end is combined in the stepped portion 44, the stepped portions 44 at the end of each panel are combined with each other. The connecting part 56 is inserted into the through-hole 41 in the panel end portion of the combination in which the step portion 44 on the panel end portion is placed on the panel end portion, and the holding piece 42 having the hollow inside, and the panel end portion is in the step portion 44. Combination It is attached and fixed to the hole 47 and the holding part 48 on the inner end, and the upper panel 23, the bottom panel 24, the ends of the left and right side panels 25 on the back panel 26 side, and the outer plate 39 of the back panel 26 are connected. The corner holding plates 57 at the four corners connecting the outer plates 35 of each panel and the side length portion holding plates 58 of the side length portions are provided on the back surface portion.

  In the refrigerator according to the present embodiment, the top panel 23, the bottom panel 24, the left and right side panels 25, and the back panel 26 including the heat insulating material 22 are combined with each other at the panel end portion step portions 44 to form grooves 45 at the corners of the step portion 44. Since the adhesive sealing material 55 is applied inside, the surface of the stepped portion 44 can be sealed, and leakage of cold air from the inside of the storage chamber 27 can be prevented, so that heat can be prevented from entering the storage chamber 27 from the outside.

  Further, the panel end portions are combined, the through holes 41 at the panel end portions and the holding piece 42 having a hollow inside are fixed to the holding component 48 at the other panel end portion by the connecting component 56, and the outer plate 35 on the back of each panel. Because the corner holding plate 57 and the side long portion holding plate 58 are fixed to each other at the four corners and the side long portion, the gap at the panel end step portion 44 is prevented, and the panel end portion step portion by cooling in the storage chamber 27 is prevented. 44 can be prevented and distortion of the heat insulating box 28 having the front surface opened can be prevented. Therefore, the large heat insulating box 28 can be easily manufactured, and the temperature in the refrigerator can be stabilized.

  As described above, in the refrigerator according to the present embodiment, the refrigerator main body formed of an assembly-type box is composed of the top panel 23 including the heat insulating material 22, the bottom panel 24, the left and right side panels 25, and the back panel 26. It is configured to form a stepped portion 44 at the end of each panel, a groove 45 at the corner of the stepped portion 44, and an adhesive seal material 55 in the groove 45, and the stepped portions 44 at the ends are combined and integrated. Yes, a top panel 23 with heat insulating material 22, a bottom panel 24, left and right side panels 25, a stepped portion 44 at the combined end of each panel of the back panel 26, a groove 45 at the corner of the stepped portion 44, Since the adhesive sealant 55 is applied to the groove 45 and the stepped portions 44 of each panel are combined to form an assembly-type heat insulating box 28, alignment and fixing can be easily performed by the stepped portions 44 at the end portions of the respective panels. The deformation of the end part by the step part can be prevented, The combination of the difference portions 44 can increase the creepage distance of the combination portion and prevent the end portion from being deformed. The adhesive seal material 55 applied in the groove 45 at the corner of the step portion 44 can seal the combination portion of the step portions 44. It is easy to assemble, prevents misalignment of each panel, prevents heat penetration from the outside of the refrigerator 21 and cool air leakage from the interior, prevents condensation, reduces manufacturing costs, and stabilizes the refrigerator temperature. And prevention of rust and corrosion.

  Further, in the combination of the stepped portions 44 at the panel end portions of the top panel 23, the bottom panel 24, the left and right side panels 25, and the back panel 26 with the heat insulating material 22, the stepped portion 44 at the panel end portion becomes the panel end portion. The top panel 23 and the bottom panel 24 of the combination to be mounted are provided with a U-shaped bent portion 40 at the end of the outer plate 35, and a through-hole 41 from the surface of the outer plate 35 in the U-shaped bent portion 40, A top panel 23 and a bottom panel 24 in which a hollow holding piece 42 installed in the same position as the through hole 41 in the U-shaped bent portion 40 is embedded in the heat insulating material 22, and a panel end portion is a stepped portion 44. The left and right side panels 25 and the back panel 26 are provided with an L-shaped bent portion 46 at the end of the outer plate 35, a hole 47 in the L-shaped bent portion 46, and a holding component 48 on the inner side. Embedded in the material 22 The right side panel 25 and the back panel 26 are passed through the inside of the holding piece 42 of the hollow from the through hole 41 of the U-shaped bent portion 40 through the end of the outer plate 35, and inside the hole 47 portion of the L-shaped bent portion 46. The upper surface panel 23 is a combination of the end portions of the respective panels fixed to the holding components 48 provided to the holding components 48, and the step portions 44 of the end portions of the panels including the heat insulating material 22 mounted on the end portions of the panels. The bottom panel 24 has a U-shaped bent portion 40 at the end of the outer plate 35, a through hole 41 from the surface of the outer plate 35, and a holding piece 42 that is hollow inside the through hole 41. The left and right side panels 25 are combined in the stepped portion 44 and the rear panel 26 has an L-shaped bent portion 46 at the end of the outer plate 35 and a hole 47 in the L-shaped bent portion 46. And the holding part 48 on the inner side of the heat insulating material 22 A holding piece 42 having a hollow inside through a through hole 41 from the surface of the panel outer plate 35 where the stepped portion 44 of the panel end is mounted on the panel end by the combination component 56. Since the panel end portion is fixed to the holding component 48 inside the stepped portion 44 inside the stepped portion 44 by combining the stepped portion 44 of each panel together to form the heat insulating box 28, the combination of the stepped portion 44 at each panel end portion Fixing allows the stepped portion 44 at the end of the panel to be securely fixed by the metal outer plates 35 of the panel, and the stepped portion 44 at each end of the panel engages with each other by securing the strength of the engaging portion. 44 can be prevented from being deformed by cooling, etc., preventing leakage of cold air, preventing condensation on the outer plate 35, and stabilizing the temperature in the refrigerator and preventing rust and corrosion. Further, it is possible to easily assemble and assemble, and it is easy to assemble and manufacturing cost can be reduced.

  In the combination of the top panel 23, the bottom panel 24, the left and right side panels 25, and the back panel 26 with the heat insulating material 22, the backs of the top panel 23, the bottom panel 24, and the left and right side panels 25. The panel 26 side end is provided with a corner holding plate 57 at the four corners that fixes the outer plate 35 of the back panel 26 and a side long portion holding plate 58 of the side long portion, and the panels are combined and configured integrally. After combining the panels, the corners and side lengths of the four corners on the back of the box 35 are connected to the corner holding plate 57 and the side length holding plate 58 to connect the outer plates 35 of each panel. Since it is fixed, it is possible to prevent gaps at the end step portions 44 of each panel, prevent distortion after the combination of the panels, prevent deformation due to cooling, prevent leakage of cold air from the combination surface, and condensation on the outer plate 35 Prevent strength, increase strength and cool It is possible to prevent the stabilization and rust and corrosion temperature in the refrigerator.

  Further, in the panel in which the vacuum heat insulating material 50 is embedded in the heat insulating material 22, the outer plate 35 whose end is bent, the inner plate 36 narrower than the outer plate 35, and the vacuum heat insulating material 50 on the back side of the outer plate 35 The inner plate 36 is formed integrally with the recess 51 and the heat insulating material 22 by fixing the vacuum heat insulating material 50 on the back side of the outer plate 35 by contacting the tip of the recess 51 with the vacuum heat insulating material 50. In the heat insulating material 22, the concave portion 51 of the inner plate 36 and the tip of the concave portion 51 are brought into contact with the vacuum heat insulating material 50, and the vacuum heat insulating material 50 is attached and fixed to the rear surface side of the outer plate 35, and foamed integrally with the vacuum heat insulating material 50. Therefore, the heat insulation performance can be improved by reducing the amount of heat entering the panel by the vacuum heat insulating material 50, the amount of cooling power consumption can be reduced by reducing the amount of heat absorption, and power can be saved. Further, fixing and assembling can be performed easily, it is easy to assemble, and the manufacturing cost can be reduced.

  Further, in the panel in which the vacuum heat insulating material 50 is embedded in the heat insulating material 22, the end portion of the outer plate 35 is formed into a U-shaped bent portion 40, and the through-hole 41 from the surface of the outer plate 35 is formed in the U-shaped bent portion 40. The inside of the U-shaped bent portion 40 is installed in the same position as the through hole 41, and the inside is a holding piece 42 having a hollow, the attachment hole 54 in the outer periphery welded portion 53 of the vacuum heat insulating material 50, and the vacuum heat insulating material 50. The mounting hole 54 is formed between the holding piece 42 having a hollow inside and the through hole 41 of the outer plate 35 on the back side of the outer plate 35, and is integrally formed with the heat insulating material 22 into the outer plate 35 side. There is a mounting hole 54 in the outer periphery welded portion 53 of the vacuum heat insulating material 50, and the inside of the outer plate 35 installed at the same position as the through hole 41 of the U-shaped bent portion 40 is between the holding piece 42 having a hollow space. Align the mounting hole 54 of the outer periphery welded portion 53 of the vacuum heat insulating material 50, and Since both the heat insulating material 50 and the outer periphery welded portion 53 are fixed to the back side of the outer plate 35 and integrated with the heat insulating material 22, the heat insulating performance can be improved by reducing the amount of heat entering the panel by the vacuum heat insulating material 50, and cooling by reducing the heat absorption amount. Power consumption can be reduced and power saving can be achieved. Moreover, the process of the outer periphery welding part 53 of the vacuum heat insulating material 50 can be performed easily, fixing and an assembly time can be shortened, it is easy to assemble, and manufacturing cost can be reduced.

(Embodiment 2)
Next, although the refrigerator of Embodiment 2 of this invention is demonstrated referring drawings, the same code | symbol is attached | subjected about the same structure as Embodiment 1, and the detailed description is abbreviate | omitted.

  FIG. 1 is an external perspective view of a refrigerator according to Embodiment 2 of the present invention. FIG. 2 is a vertical cross-sectional view of the left side when the refrigerator according to the embodiment is cut left and right as seen from the right. FIG. 3 is a main part longitudinal sectional view showing a front part of the panel in the refrigerator according to the embodiment. FIG. 4 is a main part longitudinal sectional view showing a panel combination part at four corners of the top, bottom, left, and right in the refrigerator according to the embodiment. FIG. 5 is a main part longitudinal cross-sectional view showing a rear panel combination outer periphery in the refrigerator of the same embodiment.

  FIG. 6 is an external perspective view when the panel of the refrigerator according to the embodiment is disassembled. FIG. 7 is an external perspective view when the refrigerator panel according to the embodiment is combined. FIG. 8 is an external perspective view when the rear reinforcing plate of the refrigerator according to the embodiment is disassembled. FIG. 9 is a longitudinal sectional view of the rear side when the top panel of the refrigerator according to the embodiment is cut back and forth as seen from the front. FIG. 10 is an external perspective view of the vacuum heat insulating material in the refrigerator according to the embodiment.

  FIG. 11 is a vertical cross-sectional view of the main part showing the panel combination portion at the four corners of the top, bottom, left, and right in the refrigerator according to the embodiment. FIG. 12 is a main part longitudinal cross-sectional view showing a rear panel combination outer peripheral part in the refrigerator of the embodiment. FIG. 13 is a perspective view of an external appearance of a main part in which a partition plate of a panel step portion in the refrigerator according to the embodiment is cut. FIG. 14 is a main part longitudinal sectional view showing a panel combination part at four corners of the top, bottom, left, and right in the refrigerator according to the embodiment. FIG. 15 is a main part longitudinal cross-sectional view showing a rear panel combination outer peripheral part in the refrigerator of the embodiment.

  As shown in FIGS. 1 to 15, the refrigerator 21 has a storage room 27 having a front surface opened by a combination of a top panel 23 including a heat insulating material 22, a bottom panel 24, left and right side panels 25, and a back panel 26. The formed heat insulation box 28 and a door 29 for opening the front surface of the storage chamber 27 are provided. A space for the cooling functional component storage box 30 is provided below the heat insulating box 28.

  On the inner surface of the storage chamber 27, a cooling unit storage chamber 31 is partitioned and an evaporator 33 is installed on the cold air inlet 32 side of the cooling unit storage chamber 31, and a cold air outlet 34 is installed on the outlet side.

  Further, the top panel 23, the bottom panel 24, the left and right side panels 25, and the back panel 26 include an outer plate 35, an inner plate 36, a partition plate 70 on the outer peripheral portion of the outer plate 35 and the inner plate 36, and an outer plate 35. A spacer 37 between the plate 35 and the inner plate 36 is formed by integrally foaming with the heat insulating material 22. The top panel 23 and the bottom panel 24 are made of a metal surface-treated outer plate 35 such as an iron plate, a groove-like bent portion 38 into which the inner plate 36 is inserted on the front side, and left and right and rear side end portions. A U-shaped bent portion 40 of the bent outer plate 39 and a through-hole 41 from the surface of the outer plate 35 are provided in the U-shaped bent portion 40, and the through-hole 41 is formed in the U-shaped bent portion 40. A holding piece 42 having a hollow inside provided at the same position is provided, and a plastic inner plate 36 narrower than the outer plate 35 has a flange to be inserted into a groove-like bent portion 38 of the outer plate 35 on the front side. The portion 43, the left and right ends, and the rear side end portions are integrally provided with a flat surface.

  Further, the left and right side panels 25 and the back panel 26 are bent at the outer plate 35 at the front side of the groove-shaped bent portion 38 and at the rear side ends of the left and right side panels 25. The U-shaped bent portion 40 of the outer plate 39 and the U-shaped bent portion 40 are provided with a through-hole 41 from the surface of the outer plate 35, and the same as the through-hole 41 in the U-shaped bent portion 40. The inside of the installed position is provided with hollow holding pieces 42, the upper and lower ends of the left and right side panels 25 and the upper and lower left and right ends of the back panel 26 are provided with L-shaped bent portions 46 of the bent outer plate 39, The L-shaped bent portion 46 is provided with a hole 47 and a holding part 48 on the inner side, and the inner plate 36 made of plastic having a narrower width than the outer plate 35 has a groove-like bent portion 38 of the outer plate 35 on the front side. Flange portion 43 to be inserted into the back of the left and right side panels 25 A side end portion is integrally provided with a flat portion, and upper and lower and left and right end portions of the rear panel 26 are integrally provided with a bent portion 71. A plastic thin plate is bent into a Z shape on the outer peripheral portions of the outer plate 35 and the inner plate 36. A stepped portion 44 is formed by a partition plate 70 provided with a groove 45 at the corner of the location, and the U-shape of an outer plate 39 in which the partition plate 70 is bent at the end of the outer plate 35 of the left and right side panels 25 and the rear panel 26. A seal foam 49 such as a flexible urethane foam is disposed in the groove-shaped bent portion 38 of the outer plate 35 in contact with the bent portion 40 and the L-shaped bent portion 46.

  Further, the heat insulating material 22 of the top panel 23, the bottom panel 24, the left and right side panels 25, and the back panel 26 is applied with the vacuum heat insulating material 50 against the back surface side of the outer plate 35, and the components inside the storage chamber 27 are placed. The tip of the recessed portion 51 of the inner plate 36 to be attached is brought into contact with the vacuum heat insulating material 50 to attach and fix the vacuum heat insulating material 50 on the back side of the outer plate 35, and the heat insulating material 22 is interposed between the inner plate 36 and the vacuum heat insulating material 50. It is provided by foaming together.

  Further, in the heat insulating material 22 of the top panel 23, the bottom panel 24, the left and right side panels 25, and the back panel 26, the vacuum heat insulating material 50 is connected to the through hole 41 of the U-shaped bent portion 40 of the outer plate 35. The mounting hole 54 of the outer periphery welded portion 53 that is vacuum-sealed by the outer cover material 52 of the vacuum heat insulating material 50 is aligned with the holding piece 42 having the hollow inside disposed at the same position, and the vacuum heat insulating material 50 and the outer peripheral welded portion 53 are aligned. Both are fixed to the back side of the outer plate 35, and the space between the inner plate 36 and the vacuum heat insulating material 50 is integrally foamed with the heat insulating material 22.

  Further, an adhesive sealing material 55 is applied to the groove 45 at the corner of the partition plate 70 of the panel outer peripheral stepped portion 44 of the top panel 23, the bottom panel 24, the left and right side panels 25, and the back panel 26 containing the heat insulating material 22, A combination of a top panel 23 and a bottom panel 24 in which the stepped portion 44 at the panel end is mounted on the panel end, a left and right side panel 25 and a rear panel 26 in which the panel end is combined in the stepped portion 44, The left and right side panels 25 in which the stepped portion 44 at the end is placed on the end of the panel and the left and right side panels 25 in which the panel end is combined in the stepped portion 44 are combined with each other. The connecting part 56 is inserted into the through hole 41 at the panel end of the combination where the 44 is placed on the panel end, and the holding piece 42 having a hollow inside, and the panel end is inserted into the stepped portion 44 of the combined panel end. Hole It is attached fixedly connected to 7 and the inside of the holding part 48.

  Further, the corner holding plates at the four corners for connecting the top panel 23, the bottom panel 24, the ends of the left and right side panels 25 on the back panel 26 side, and the outer plate 35 of the rear panel 26 to each other. 57 and the side length portion holding plate 58 of the side length portion are installed on the back surface portion.

  Further, the refrigerator 21 can exchange heat from the inner surface to the top panel 23, the bottom panel 24, and the left and right side panels 25 in the outer peripheral portion of the opening of the storage chamber 27 facing the door 29 in the heat insulating box 28. An abutting outer peripheral pipe 59 for circulating high-temperature refrigerant is embedded in the heat insulating material 22.

  The door 29 containing the heat insulating material 22 covering the front surface of the opening of the storage chamber 27 of the heat insulating box 28 is installed so as to be opened and closed via a hinge 60 attached to the heat insulating box 28. The door 29 is provided with a cold air sealing gasket 61 containing a magnet made of a flexible material at a position in contact with the outer peripheral portion of the opening of the storage chamber 27, and a door back plate 62 inside the cold air sealing gasket 61.

  In the storage room 27, a storage room shelf 63 is installed in the receiving part of the left and right wall surfaces of the storage room 27 while keeping the space with the storage room 27. In addition, a cool air circulation fan 64 is provided at the same height as the cool air discharge port 34 of the cooling unit storage chamber 31 on the inner surface of the storage chamber 27.

  The cooling functional component storage box 30 at the bottom of the refrigerator 21 includes a compressor 65, an evaporating dish 66 on the compressor 65, a condenser 67, a capillary tube as an expansion mechanism, a condenser cooling fan 68, and cooling A control panel 69 is installed.

  The compressor 65, the condenser 67, the high-temperature refrigerant circulation outer pipe 59, the capillary tube, and the evaporator 33 are sequentially connected in an annular manner, and a refrigeration cycle (vapor compression refrigeration system) as a cooling means for cooling the storage chamber 27. ).

  About the refrigerator of this Embodiment comprised as mentioned above, the operation | movement is demonstrated below.

  Simultaneously with turning on the power of the cooling control panel 69, the compressor 65 is activated to operate the refrigeration cycle, and the evaporator 33 performs cooling. At this time, the cool air circulation fan 64 circulates the air in the storage chamber 27 through the cool air suction port 32, the evaporator 33, and the cool air discharge port 34 into the storage chamber 27 to cool to about 4 ° C.

  When the food is cooled, first, when the food is placed on the storage chamber shelf 63 in the storage chamber 27 and the door 29 is closed, the door 29 activates the door open / close detection means and rotates the cooling air circulation fan 64. The cold air flows into the storage chamber 27 from the cold air discharge port 34, and the food is covered with the cold air. The cold air cooled by the evaporator 33 is not leaked by the door 29 with the gasket 61 for the cold air seal at the outer peripheral portion of the front opening of the storage chamber 27.

  Therefore, the food in the storage room 27 is cooled. Therefore, food can be stored in a good state without temperature rise.

  In the refrigerator of the present embodiment, the storage room 27 of the heat insulating box 28 having the front surface opened by combining the top panel 23, the bottom panel 24, the left and right side panels 25, and the back panel 26 with the heat insulating material 22 is provided with each heat insulating material. The panel combination part is sealed by applying an adhesive sealing material 55.

  As a result, since the gap due to the deformation of the heat insulating panel combination portion is prevented, there is no leakage of the cold air cooled by the evaporator 33 in the cooling portion storage chamber 31, and further, the cooling air passes through the storage chamber 27 and is cooled from the storage chamber 27. Since it is possible to suppress a decrease in the amount of cool air circulation that returns to the part storage chamber 31 and cools the storage chamber 27, it is possible to prevent a cooling decrease in the storage chamber 27.

  In addition, the storage chamber 27 of the heat insulating box 28 having an open front is configured to combine and assemble the top panel 23, the bottom panel 24, the left and right side panels 25, and the back panel 26 with the heat insulating material 22. By changing the external dimensions of the top panel 23, the bottom panel 24, the left and right side panels 25, and the back panel 26 containing the material 22, the storage chamber 27 of the heat insulating box 28 can be freely formed. The jig for injecting and foaming can also be simplified, and the external dimensions of the jig can be changed easily, so that it is easy to process, accommodates various sizes, and reduces manufacturing costs. Is possible.

  Further, since the door 29 can be brought into contact with the position of the outer peripheral portion of the opening portion of the storage chamber 27 by the cold air sealing gasket 61 made of a flexible material and incorporating a magnet, the leakage of the cold air from the storage chamber 27 can be eliminated.

  In the refrigerator of the present embodiment, the cooling refrigerant is compressed by the compressor 65, becomes a high temperature, is sent to the condenser 67, is decompressed by the high-temperature refrigerant circulation outer pipe 59, and the capillary tube, passes through the evaporator 33, Return to compressor 65.

  As a result, the outer surface where the outer peripheral pipe 59 for circulating the high-temperature refrigerant is installed in the heat insulating material 22 of the top panel 23, the bottom panel 24, and the left and right side panels 25 is heated by the high-temperature refrigerant.

  For this reason, the heat conduction from the storage chamber 27 can suppress the effect of cooling the outer surfaces of the top panel 23, the bottom panel 24, and the left and right side panels 25, thereby preventing condensation on the heat insulating box 28. It becomes possible.

  As described above, in the refrigerator according to the present embodiment, the storage chamber 27 having an opening on the front surface is formed, the outer plate 35 and the inner plate 36, the outer plate 35 and the outer plate 35 and the partition plate 70 on the stepped portion 44 of the inner plate 36, A heat insulating box body in which a top panel 23 including a heat insulating material 22 in which a spacer 37 between an outer plate 35 and an inner plate 36 is integrally foamed, a bottom panel 24, left and right side panels 25, and a rear panel 26 are combined. 28, a top panel of a refrigerator 21 including a door 29 that opens and closes an opening of the storage chamber 27, and an evaporator 33 of a refrigeration cycle (vapor compression refrigeration system) as a cooling means for cooling the storage chamber 27. 23, and the bottom panel 24 are formed in a U-shaped bend of an outer plate 35, a groove-shaped bent portion 38 into which an inner plate 36 is inserted on the front side, and an outer plate 39 bent on the left and right and rear side ends. Part 40 and U-shaped bent part 40 A through hole 41 from the surface of the plate 35 is provided, the inside of the U-shaped bent portion 40 installed at the same position as the through hole 41 is provided with a hollow holding piece 42, and is narrower than the outer plate 35. The plastic inner plate 36 is integrally provided with a flange portion 43 to be inserted into the groove-shaped bent portion 38 of the outer plate 35 on the front side, and left and right and back side end portions on a flat surface.

  Further, the left and right side panels 25 and the back panel 26 are bent at the outer plate 35 at the front side of the groove-shaped bent portion 38 and at the rear side ends of the left and right side panels 25. The U-shaped bent portion 40 of the outer plate 39 and the U-shaped bent portion 40 are provided with a through-hole 41 from the surface of the outer plate 35, and the same as the through-hole 41 in the U-shaped bent portion 40. The inside of the installed position is provided with hollow holding pieces 42, the upper and lower ends of the left and right side panels 25 and the upper and lower left and right ends of the back panel 26 are provided with L-shaped bent portions 46 of the bent outer plate 39, The L-shaped bent portion 46 is provided with a hole 47 and a holding part 48 on the inner side, and the inner plate 36 made of plastic having a narrower width than the outer plate 35 has a groove-like bent portion 38 of the outer plate 35 on the front side. Flange portion 43 to be inserted into the back of the left and right side panels 25 A side end portion is integrally provided with a flat portion, and upper and lower and left and right end portions of the rear panel 26 are integrally provided with a bent portion 71. A plastic thin plate is bent into a Z shape on the outer peripheral portions of the outer plate 35 and the inner plate 36. A stepped portion 44 is formed by a partition plate 70 provided with grooves 45 at the corners of the location, and the partition plate 70 is formed at the top panel 23, the bottom panel 24, the left and right side panels 25, and the end of the outer panel 35 of the back panel 26. The U-shaped bent portion 40, the L-shaped bent portion 46, the flat portion at the end of the inner plate 36, and the bent portion 71 are in contact with the bent portion 71 of the outer plate 39 and the outer plate 35 is bent in a groove shape. A seal foam 49 is provided in the portion 38.

  11 and 12, instead of the partition plate 70 forming the stepped portion 44, a film-like sheet 72 may be used. The top panel 23, the bottom panel 24, the left and right side panels 25, A stepped portion 44 is formed by a film-like sheet 72 on the outer peripheral portion of the outer plate 35 and the inner plate 36 of the back panel 26, and the partition plate 70 is formed by the top panel 23, the bottom panel 24, and the left and right side panels 25. The U-shaped bent portion 40 of the outer plate 39 bent at the end of the outer plate 35 of the back panel 26, the L-shaped bent portion 46, the flat portion at the end of the inner plate 36, and the bent portion 71 are contacted. In contact with each other, grooves 45 at the corners of the stepped portion 44 are formed by the heat insulating material 22 foaming jig.

  14 and 15, instead of the partition plate 70 forming the stepped portion 44, a film-like sheet 72 and a seal sash 73 inserted into the inner plate 36 from the joining of the inner plates 36 by panel assembly. The top plate 23, the bottom panel 24, the left and right side panels 25, the outer plate 35 of the back panel 26, and the outer periphery of the inner plate 36 may be joined by a film-like sheet 72. A stepped portion 44 is formed, and the partition plate 70 is formed into a U-shaped bent portion of the upper panel 23, the bottom panel 24, the left and right side panels 25, and the outer plate 39 that is bent at the end of the outer plate 35 of the rear panel 26. 40, an L-shaped bent portion 46, a top panel 23, a bottom panel 24, a flat portion at the end of the inner plate 36 on the back side of the left and right side panels 25, and upper and lower sides of the inner plate 36 of the left and right side panels 25. end The seal sash 73 inserted into the flat portion of the rear panel 26 and the seal sash 73 inserted into the flat portion of the end portion of the inner plate 36 of the back panel 26 are in contact with each other, and a groove 45 at the corner of the stepped portion 44 is formed by the insulating material 22 Provided.

  In the refrigerator of the present embodiment, the top panel 23 and the outer plate 35 of the bottom panel 24 are a groove-like bent portion 38 into which the inner plate 36 is inserted on the front side, and an outer plate bent on the left and right and rear side ends. 39, a U-shaped bent portion 40, a U-shaped bent portion 40 with a through-hole 41 from the surface of the outer plate 35, and the inside of the U-shaped bent portion 40 is hollow at the same position as the through-hole 41. The plastic inner plate 36 narrower than the outer plate 35 has a flange portion 43 inserted into the groove-shaped bent portion 38 of the outer plate 35 on the front side, and left and right and rear side end portions. Is a flat surface, the left and right side panels 25, the back panel 26, the outer plate 35, the groove-shaped bent portion 38 into which the inner plate 36 is inserted on the front side, and the rear side end portions of the left and right side panels 25. U-shaped folding part 40 of the outer plate 39 and U-shaped folding A through-hole 41 from the surface of the outer plate 35 is provided in the flange portion 40, and a holding piece 42 having a hollow interior is installed in the same position as the through-hole 41 in the U-shaped bent portion 40. The end and the upper, lower, left and right ends of the back panel 26 are bent into an L-shaped bent portion 46 of the outer plate 39, a hole 47 and a holding part 48 are attached to the inner side of the L-shaped bent portion 46, and are wider than the outer plate 35. The narrow plastic inner plate 36 has a flange portion 43 to be inserted into the groove-shaped bent portion 38 of the outer plate 35 on the front surface side, the rear side end portions of the left and right side panels 25 are flat, and the upper and lower and rear panel 26. A bent portion 71 is integrated with the upper, lower, left and right ends of the plate, and a plastic thin plate is bent in the outer periphery of the outer plate 35 and the inner plate 36 into a Z shape, and a step is formed by a partition plate 70 provided with a groove 45 at one corner. Part 44 is formed, and the partition plate 70 is attached to the upper panel. 3, the bottom panel 24, the left and right side panels 25, the U-shaped bent portion 40 of the outer plate 39 bent at the end of the outer plate 35 of the rear panel 26, the L-shaped bent portion 46, and the inner plate 36 is in contact with the flat portion at the end and the bent portion 71, and a seal form 49 is provided and sealed in the groove-like bent portion 38 of the outer plate 35, and a gap between the outer plate 35 and the inner plate 36 is formed by the spacer 37. Since it is constant, the combination of the outer plate 35 and the inner plate 36 can be simplified, and the leakage of the heat insulating material 22 can be prevented from joining the outer plate 35 and the inner plate 36 at the time of integral foaming with the heat insulating material 22. Both the plates 36 can be increased in flatness, and the jig for injecting and foaming the heat insulating material 22 can be simplified, making it easy to assemble and process, and reducing manufacturing costs.

  Further, the inner plate 36 and the partition plate 70 on the side of the storage chamber 27 are made of plastic, so that heat conduction due to cooling can be reduced, and the inner plate 36 and the partition plate 70 can be obtained by increasing the creepage distance at the step portion 44 of the partition plate 70. Therefore, it is possible to reduce the heat conduction from the outer plate 35 to the outer plate 35, thereby preventing condensation on the outer plate 35 and stabilizing the temperature and preventing rust and corrosion.

  A stepped portion 44 is formed by a film-like sheet 72 on the outer peripheral portions of the top panel 23, the bottom panel 24, the left and right side panels 25, the outer plate 35 and the inner plate 36 of the rear panel 26, and a partition plate. 70 is a top panel 23, a bottom panel 24, left and right side panels 25, a U-shaped bent portion 40 of an outer plate 39 that is bent at an end of the outer plate 35 of the rear panel 26, and an L-shaped bent portion 46. Since the groove 45 at the corner of the stepped portion 44 is formed by the heat insulating material 22 foaming jig by contacting the flat portion at the end of the inner plate 36 and the bent portion 71, the combination of the outer plate 35 and the inner plate 36 is simple. It is possible to prevent leakage of the heat insulating material 22 from the joining portion of the outer plate 35 and the inner plate 36 when integrally foaming with the heat insulating material 22, and the outer plate 35 and the inner plate 36 can be increased in flatness, and the stepped portion 44 is formed into a film-like sheet. 72 can be formed and injected with insulation 22 Also jig when bubbles can easily, easily assembled, easily processed, without a mold, the manufacturing cost can be reduced.

  Further, the inner plate 36 on the storage chamber 27 side and the film-like sheet 72 are made of plastic, so that heat conduction by cooling can be reduced, and a large creepage distance can be taken at the stepped portion 44 of the film-like sheet 72, thereby Since heat conduction from the film-like sheet 72 to the outer plate 35 can be reduced, condensation on the outer plate can be prevented, and temperature stabilization and prevention of rust and corrosion can be achieved.

  A stepped portion 44 is formed by a film-like sheet 72 on the outer peripheral portions of the top panel 23, the bottom panel 24, the left and right side panels 25, the outer plate 35 and the inner plate 36 of the rear panel 26, and a partition plate. 70 is a top panel 23, a bottom panel 24, left and right side panels 25, a U-shaped bent portion 40 of an outer plate 39 that is bent at an end of the outer plate 35 of the rear panel 26, and an L-shaped bent portion 46. A top panel 23, a bottom panel 24, a flat portion at the end of the inner plate 36 on the back side of the left and right side panels 25, and a seal inserted into the flat portion at the upper and lower ends of the inner plate 36 of the left and right side panels 25. Since the sash 73 and the seal sash 73 inserted into the flat portion at the end of the inner plate 36 of the back panel 26 are in contact with each other and the groove 45 at the corner of the stepped portion 44 is formed by the heat insulating material 22 foaming jig, Easy combination of inner plate 36 It is possible to prevent leakage of the heat insulating material 22 from the joining portion of the outer plate 35 and the inner plate 36 when integrally foaming with the heat insulating material 22, and the outer plate 35 and the inner plate 36 can be increased in flatness, and the stepped portion 44 is formed into a film-like sheet. 72, and a jig for injecting and foaming the heat insulating material 22 can be simplified. It is easy to assemble and process, does not require a mold, and can reduce the manufacturing cost.

  Further, the inner plate 36 on the storage chamber 27 side and the film-like sheet 72 are made of plastic, so that heat conduction by cooling can be reduced, and a large creepage distance can be taken at the stepped portion 44 of the film-like sheet 72, thereby Since heat conduction from the film-like sheet 72 to the outer plate 35 can be reduced, condensation on the outer plate can be prevented, and temperature stabilization and prevention of rust and corrosion can be achieved. Further, when assembling the panel, the gap between the joint portions of the inner plates 36 can be hidden, and the appearance can be improved.

  As described above, the refrigerator according to the present embodiment includes the vacuum heat insulating material 50 in the heat insulating material 22 of the top panel 23, the bottom surface panel 24, the left and right side panels 25, and the back panel 26. And the tip of the recess 51 of the inner plate 36 for mounting the components inside the storage chamber 27 is in contact with the vacuum heat insulating material 50, and the vacuum heat insulating material 50 is attached and fixed to the back side of the outer plate 35, and the inner plate 36 and the vacuum heat insulating material are fixed. 50 is formed by integrally foaming with the heat insulating material 22, and the vacuum heat insulating material 50 is provided in the heat insulating material 22 of the top panel 23, the bottom panel 24, the left and right side panels 25, and the back panel 26. An outer periphery welded portion 53 that is vacuum-sealed with an outer cover material 52 of a vacuum heat insulating material 50 between the inside of the outer plate 35 and the holding piece 42 that is hollow at the same position as the through hole 41 of the U-shaped bent portion 40. The mounting holes 54 are aligned with the vacuum heat insulating material 50. Circumferential weld portion 53 is fixed to the outer plate 35 the back side together, those provided by foaming between the inner plate 36 and the vacuum heat insulating material 50 integrally with the heat insulating material 22.

  In the refrigerator of the present embodiment, the top of the top panel 23, the bottom panel 24, the left and right side panels 25, the heat insulating material 22 of the back panel 26, and the tip of the recess 51 of the inner plate 36 contact the vacuum heat insulating material 50. The vacuum heat insulating material 50 is attached and fixed on the back surface side of the outer plate 35 in contact with it, and the vacuum heat insulating material 50 is installed at the same position as the through hole 41 of the U-shaped bent portion 40 of the outer plate 35 to maintain the cavity. The mounting hole 54 of the outer periphery welded portion 53 of the vacuum heat insulating material 50 is aligned with the piece 42, and both the vacuum heat insulating material 50 and the outer peripheral welded portion 53 are fixed to the back surface side of the outer plate 35, the inner plate 36, and the vacuum heat insulating material. Since the heat insulating material 22 is integrally foamed with the heat insulating material 22, the heat insulating material 22 can improve the heat insulating performance by the vacuum heat insulating material 50 and can reduce the amount of heat entering the storage chamber 27. Power consumption can be reduced and It can be achieved.

  As described above, the refrigerator according to the present embodiment has an adhesive seal in the groove 45 at the corner of the panel edge step 44 of the top panel 23, the bottom panel 24, the left and right side panels 25, and the back panel 26 containing the heat insulating material 22. The material 55 is applied, and the combination of the top panel 23 and the bottom panel 24 where the stepped portion 44 on the panel end rests on the panel end, the left and right side panels 25 combined with the panel end within the stepped portion 44, The rear panel 26, the combination of the stepped portion 44 at the end of the panel resting on the end of the panel, and the left and right side panels 25 in which the panel end is combined in the stepped portion 44, the stepped portions 44 at the end of each panel are combined with each other. The connecting part 56 is inserted into the through-hole 41 in the panel end portion of the combination in which the step portion 44 on the panel end portion is placed on the panel end portion, and the holding piece 42 having the hollow inside, and the panel end portion is in the step portion 44. Combination It is attached and fixed to the hole 47 at the end of the cable and the holding part 48 on the inner side, and the upper panel 23, the bottom panel 24, the left and right side panels 25 on the rear panel 26 side end, and the outer panel 35 of the rear panel 26. The corner holding plates 57 at the four corners connecting the outer plates 35 of each panel and the side length portion holding plates 58 of the side length portions are provided on the back surface portion.

  In the refrigerator according to the present embodiment, the top panel 23, the bottom panel 24, the left and right side panels 25, and the back panel 26 including the heat insulating material 22 are combined with each other at the panel end portion step portions 44 to form grooves 45 at the corners of the step portion 44. Since the adhesive sealing material 55 is applied inside, the surface of the stepped portion 44 can be sealed, and leakage of cold air from the inside of the storage chamber 27 can be prevented, so that heat can be prevented from entering the storage chamber 27 from the outside.

  Further, the panel end portions are combined, the through holes 41 at the panel end portions and the holding piece 42 having a hollow inside are fixed to the holding component 48 at the other panel end portion by the connecting component 56, and the outer plate 35 on the back of each panel. Because the corner holding plate 57 and the side long portion holding plate 58 are fixed to each other at the four corners and the side long portion, the gap at the panel end step portion 44 is prevented, and the panel end portion step portion by cooling in the storage chamber 27 is prevented. 44 can be prevented and distortion of the heat insulating box 28 having the front surface opened can be prevented. Therefore, the large heat insulating box 28 can be easily manufactured, and the temperature in the refrigerator can be stabilized.

  As described above, the refrigerator according to the present embodiment includes the outer plate 39 having the bent end portions in the top panel 23, the bottom panel 24, the left and right side panels 25, and the back panel 26 containing the heat insulating material 22, and a step at the end. A plastic inner plate 36 having a width smaller than that of the outer plate 35 integrally formed with the portion 44 and the groove 45 at the corner of the stepped portion 44, a spacer 37 between the outer plate 35 and the inner plate 36, and a heat insulating material 22, and a stepped portion 44 at the end of the inner plate 36 and a groove 45 at the corner of the stepped portion 44 are integrally provided, so only two parts of the outer plate 35 and the inner plate 36 are provided. Thus, a panel containing the heat insulating material 22 can be formed, and the adhesive seal material 55 can be easily applied by the grooves 45 at the corners of the stepped portion 44, so that the operation can be facilitated and the number of parts can be reduced. Further, the inner plate 36 is made of plastic, so that heat conduction from the stepped portion 44 at the end to the outer plate 35 can be prevented, condensation on the outer plate 35 can be prevented, and rust and corrosion can be prevented.

  Further, the combination of the stepped portions 44 can increase the creepage distance of the combined portion and ensure the strength, and the combination of the stepped portions 44 can provide two grooves 45 at the corners of the stepped portion 44. By applying the adhesive sealing material 55 to 45 parts, it is possible to prevent cold air leakage from the inside of the cabinet and stabilize the temperature in the refrigerator.

  In addition, in the top panel 23, the bottom panel 24, the left and right side panels 25, and the back panel 26 containing the heat insulating material 22, an outer plate 39 having bent end portions, an inner plate 36 narrower than the outer plate 35, and an outer plate A thin plate made of plastic on the outer periphery of the inner plate 36 and the inner plate 36 is bent in a Z shape, and a spacer 37 is provided between the outer plate 35 and the inner plate 36. The material 22 is formed by integrally forming a stepped portion 44 at the end portions of the outer plate 35 and the inner plate 36 by a partition plate 70. The outer plate 35 and the inner plate 36 are formed in a plastic Z shape on the outer peripheral portion. Since the step part 44 at the end is provided by a thin partition plate 70 with a groove 45 at one corner of the bend to form a plastic step part 44, the adhesive seal material 55 is formed by the groove 45 at the corner of the step part 44. Easy to apply, easy to assemble and reduce manufacturing costs That. Since the partition plate 70 is made of plastic, heat conduction from the stepped portion 44 at the end portion to the outer plate 35 can be prevented, condensation on the outer plate 35 can be prevented, and rust and corrosion can be prevented.

  Further, the combination of the stepped portions 44 can increase the creepage distance of the combined portion and ensure the strength, and the combination of the stepped portions 44 can provide two grooves 45 at the corners of the stepped portion 44. By applying the adhesive sealing material 55 to 45 parts, it is possible to prevent cold air leakage from the inside of the cabinet and stabilize the temperature in the refrigerator.

  In addition, in the top panel 23, the bottom panel 24, the left and right side panels 25, and the back panel 26 containing the heat insulating material 22, an outer plate 39 having bent end portions, an inner plate 36 narrower than the outer plate 35, and an outer plate The film-like sheet 72 on the outer peripheral portion of the inner plate 36 and the spacer 37 and the heat insulating material 22 between the outer plate 35 and the inner plate 36 are used to insulate the film-like sheet 72 on the outer peripheral portion of the inner plate 36. A step jig 44 is formed integrally with the end plate of the outer plate 35 and the inner plate 36 by a pressing jig when foaming the material 22, and a groove 45 is formed at the corner of the step portion 44. The outer plate 35 and the inner plate 36 are integrally formed. A film-like sheet 72 on the outer peripheral portion of the outer plate 35, a stepped portion 44 at the end of the outer peripheral portion of the outer plate 35 and the inner plate 36 by a pressing jig when foaming the heat insulating material 22, and the stepped portion 44 as an inexpensive film-like sheet 72. The groove 45 is integrated with the corner of the stepped portion 44 to form a film-like sheet. Having formed through the door 72, the step portion 44 corner of the groove 45 can be easily applied for the adhesive sealant 55, without a mold, easy assembly, the manufacturing cost can be reduced.

  Further, the stepped portion 44 is made of a film-like sheet 72, so that heat conduction from the stepped portion 44 at the end to the outer plate 35 can be prevented, condensation on the outer plate 35 can be prevented, and rust and corrosion can be prevented. it can. Further, the combination of the stepped portions 44 can increase the creepage distance of the combined portion and ensure the strength, and the combination of the stepped portions 44 can provide two grooves 45 at the corners of the stepped portion 44. By applying the adhesive sealing material 55 to 45 parts, it is possible to prevent cold air leakage from the inside of the cabinet and stabilize the temperature in the refrigerator.

  In addition, in the top panel 23, the bottom panel 24, the left and right side panels 25, and the back panel 26 containing the heat insulating material 22, an outer plate 39 having bent end portions, an inner plate 36 narrower than the outer plate 35, and an inner plate 36, a panel sash 73 for blinding each panel alignment portion, a film sheet 72 on the outer periphery of the seal sash 73 inserted in the outer plate 35 and the inner plate 36, and between the outer plate 35 and the inner plate 36. The film-like sheet 72 on the outer periphery of the seal sash 73 inserted into the inner plate 36 with the spacer 37 and the heat insulating material 22 is attached to the end portions of the outer plate 35 and the inner plate 36 by a pressing jig when foaming the heat insulating material 22. The step portion 44 and the groove 45 are integrally formed in the corner of the step portion 44. The outer plate 35, the seal sash 73 for concealing each panel alignment portion inserted in the inner plate 36, and the inner plate 36 are formed. Inserted seal A stepped portion 44 at the end of the outer peripheral portion of the seal sash 73 inserted into the outer plate 35 and the inner plate 36 by a pressing jig when foaming the heat insulating material 22, and a stepped portion 44 on the outer peripheral portion of the shush 73. Is formed into an inexpensive film-like sheet 72, and the groove 45 is integrally formed in the corner of the stepped portion 44 via the film-like sheet 72. Therefore, the adhesive sealant 55 can be easily applied by the groove 45 in the corner of the stepped portion 44. It does not require a mold, is easy to assemble, and can reduce manufacturing costs.

  Further, the stepped portion 44 is made of a film-like sheet 72, so that heat conduction from the stepped portion 44 at the end to the outer plate 35 can be prevented, condensation on the outer plate 35 can be prevented, and rust and corrosion can be prevented. it can. Further, the combination of the stepped portions 44 can increase the creepage distance of the combined portion and ensure the strength, and the combination of the stepped portions 44 can provide two grooves 45 at the corners of the stepped portion 44. By applying the adhesive sealing material 55 to 45 parts, it is possible to prevent cold air leakage from the inside of the cabinet and stabilize the temperature in the refrigerator. Moreover, since each panel matching part is hidden by the seal sash 73, the gap between each panel matching part can be prevented, and the appearance can be improved.

  The present invention is a refrigerator that forms a heat insulation box body by cold air seal of the stepped portion while combining the stepped portions of the panel end portions containing the heat insulating material, and therefore requires a panel assembled refrigerator that is inexpensive, durable, and has little cold air leakage. Suitable for use.

External perspective view of the refrigerator according to Embodiments 1 and 2 of the present invention Longitudinal sectional view of the left side when the refrigerator of the same embodiment is cut left and right as seen from the right The principal part longitudinal cross-sectional view which shows the front part of the panel in the refrigerator of the embodiment The principal part longitudinal cross-sectional view which shows the panel combination part of four corners in the refrigerator of the same embodiment up and down, right and left The principal part longitudinal cross-sectional view which shows the back panel combination outer peripheral part in the refrigerator of the embodiment External perspective view when the panel of the refrigerator according to the embodiment is disassembled External perspective view when the refrigerator panel according to the embodiment is combined External perspective view when the rear reinforcing plate of the refrigerator according to the embodiment is disassembled The longitudinal cross-sectional view which looked at the back side at the time of cut | disconnecting the upper surface panel of the refrigerator by the same embodiment back and forth from the front External appearance perspective view of the vacuum heat insulating material in the refrigerator of the embodiment The principal part longitudinal cross-sectional view which shows the panel combination part of four corners in the refrigerator of the same embodiment up and down, right and left The principal part longitudinal cross-sectional view which shows the back panel combination outer peripheral part in the refrigerator of the embodiment The main part external appearance perspective view which cut | disconnected the partition plate of the panel level | step-difference part in the refrigerator of the embodiment The principal part longitudinal cross-sectional view which shows the panel combination part of four corners in the refrigerator of the same embodiment up and down, right and left The principal part longitudinal cross-sectional view which shows the back panel combination outer peripheral part in the refrigerator of the embodiment Partially exploded perspective view of conventional refrigerator heat insulation box The principal part front view which shows the coupling | bonding of the left and right side panel and bottom panel of the heat insulation box of the conventional refrigerator The principal part top view which shows the coupling | bonding of the right and left side panel and back panel of the heat insulation box of the conventional refrigerator

Explanation of symbols

22 Heat Insulating Material 23 Top Panel 24 Bottom Panel 25 Left and Right Side Panels 26 Rear Panel 35 Outer Plate 36 Inner Plate 37 Spacer 39 Bent Outer Plate 40 U-Shaped Bent Part 41 Through Hole 42 Holding Piece 44 Stepped Part 45 Groove 46 L Characteristic bent part 47 hole 48 holding part 50 vacuum heat insulating material 51 recessed part 53 outer periphery welded part 54 mounting hole 55 adhesive seal material 56 connecting part 57 corner holding plate 58 side long part holding plate 70 partition plate 72 sheet 73 seal sash

Claims (9)

A refrigerator main body composed of an assembly-type box is composed of a top panel with a heat insulating material, a bottom panel, left and right side panels, and a back panel, a stepped portion at the end of each panel, and the stepped portion A refrigerator comprising a groove in a corner and an adhesive seal material in the groove, wherein the step portions at the ends are combined and integrated. In the top panel, the bottom panel, the left and right side panels, and the back panel with heat insulating material, an outer plate with bent end portions, the stepped portion at the end portion, and the groove at the corner of the stepped portion. The plastic inner plate having a narrower width than the integrally provided outer plate, and a spacer and a heat insulating material are integrally formed between the outer plate and the inner plate. refrigerator. In the top panel, the bottom panel, the left and right side panels, and the back panel with heat insulating material, the outer plate with its end bent, the inner plate narrower than the outer plate, the outer plate, and the A plastic thin plate is bent into a Z shape on the outer periphery of the inner plate, a partition plate provided with the groove at one corner, the spacer between the outer plate and the inner plate, and the heat insulating material. 2. The refrigerator according to claim 1, wherein the step portion is integrally formed by the partition plate at an end portion of the outer plate and the inner plate. In the top panel, the bottom panel, the left and right side panels, and the back panel with heat insulating material, the outer plate with its end bent, the inner plate narrower than the outer plate, the outer plate, and the A film-like sheet on the outer peripheral portion of the inner plate, the spacer between the outer plate and the inner plate, and the heat insulating material, and the film-like sheet on the outer peripheral portion of the inner plate at the time of foaming the heat insulating material 2. The refrigerator according to claim 1, wherein the stepped portion is integrally formed at an end portion of the outer plate and the inner plate by a pressing jig, and the groove is formed at a corner of the stepped portion. In the top panel, the bottom panel, the left and right side panels, and the back panel with heat insulating material, the outer plate is bent at the end, the inner plate is narrower than the outer plate, and is inserted into the inner plate A seal sash for blinding each panel matching portion, the sheet in the outer periphery of the seal sash inserted into the outer plate and the inner plate, and the spacer between the outer plate and the inner plate The step portion at the end of the outer plate and the inner plate by the pressing jig when foaming the insulating material, the film-like sheet of the seal sash outer peripheral portion inserted into the inner plate with the heat insulating material, The refrigerator according to claim 1, wherein the groove is integrally formed at a corner of the stepped portion. In the combination of the stepped portions of the panel end portions of the top panel, the bottom panel, the left and right side panels, and the back panel of the heat insulating material, the stepped portion of the panel end portion is placed on the panel end portion. The top panel and the bottom panel include a U-shaped bent portion at the outer plate end, and a through-hole from the surface of the outer plate in the U-shaped bent portion, The left and right side surfaces of the top panel, the bottom panel, and the panel end portion in the stepped portion are combined in the heat insulating material with a hollow holding piece installed in the same position as the through hole in the bent portion. The left and right side panels are provided with an L-shaped bent portion at the outer plate end of the panel and the back panel, a hole in the L-shaped bent portion, and a holding part on the inside, and embedded in the heat insulating material. , The back panel Is connected to the holding part provided inside the hole of the L-shaped bent portion through the end of the outer plate through the through hole of the U-shaped bent portion through the holding piece of the cavity. The refrigerator according to any one of claims 1 to 5, wherein an end portion of each panel is fixed with a component. In the combination of each of the top panel, the bottom panel, the left and right side panels, and the back panel with heat insulating material, the back panel side of the top panel, the bottom panel, and the left and right side panels A corner holding plate of four corners for fixing the end of the rear panel to the outer plate of the back panel and a side long portion holding plate of the side long portion, and each panel is combined and configured integrally. The refrigerator according to any one of claims 1 to 6, wherein the refrigerator is characterized in that: In a panel in which a vacuum heat insulating material is embedded in a heat insulating material, the outer plate whose end is bent, the inner plate narrower than the outer plate, the vacuum heat insulating material on the back side of the outer plate, and the inner plate The concave portion of the first portion and the tip of the concave portion are brought into contact with the vacuum heat insulating material, the vacuum heat insulating material is attached and fixed to the back side of the outer plate, and the heat insulating material is integrally formed. The refrigerator as described in any one of 7 to 7. In the panel in which the vacuum heat insulating material is embedded in a heat insulating material, the outer plate end portion includes the U-shaped bent portion, and the U-shaped bent portion includes the through hole from the surface of the outer plate. The inside of the U-shaped bent portion, which is installed at the same position as the through hole, has a hollow holding piece, a mounting hole in the outer periphery welded portion of the vacuum heat insulating material, and the mounting hole of the vacuum heat insulating material. 2. It is provided between the hollow holding piece and the through hole of the outer plate on the back side of the outer plate, and is integrally formed into the outer plate side with the heat insulating material. The refrigerator according to any one of 8 to 8.

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