WO2019175978A1

WO2019175978A1 - Refrigerator and method for manufacturing said refrigerator

Info

Publication number: WO2019175978A1
Application number: PCT/JP2018/009776
Authority: WO
Inventors: 章弘難波
Original assignee: 三菱電機株式会社
Priority date: 2018-03-13
Filing date: 2018-03-13
Publication date: 2019-09-19
Also published as: TW201938971A; JPWO2019175978A1; SG11202008751YA; JP7034253B2; AU2018412991A1; AU2018412991B2; TWI682139B; CN111886463A; CN111886463B

Abstract

This refrigerator is provided with a refrigerator body having at least one refrigeration chamber provided with an opening on the front surface, and a door part that closes the opening of the refrigeration chamber in an openable/closable manner. The door part has: a rectangular frame member; an inner plate that closes a refrigeration chamber-side open surface of the frame member; a decorative plate that closes a front surface-side open surface of the frame member; a heat insulating member provided in a space sealed by the frame member, the inner plate, and the decorative plate; and a hot melt that bonds the frame member and the decorative plate.

Description

Refrigerator and method for manufacturing the refrigerator

The present invention relates to a refrigerator and a method for manufacturing the refrigerator.

Generally, a refrigerator is provided with an opening on the front surface, and includes a refrigerator main body having at least one storage chamber, and a door that closes the opening of the storage chamber so as to be opened and closed. The door part is constituted by a rotary type or a drawer type. Since the door part of a household refrigerator is the part most visually recognized by the end user, it is particularly important that the door part is excellent in design. Therefore, in recent years, the surface of the door portion is formed of a glass member, and the overall appearance is beautiful.

For example, a door disclosed in Patent Document 1 includes a rectangular parallelepiped frame, a glass front panel that closes one opening surface of the frame, and a back panel that closes the other opening surface of the frame. It is a configuration. The frame body has a support plate extended inward. The front panel has a decorative sheet on the back side, and the outer peripheral edge of the decorative sheet is attached to a support plate with a double-sided adhesive film. The inside of the frame sealed by the front panel and the back panel is filled with a heat insulating material made of a foamable resin.

JP 2016-125792 A

The door body of Patent Document 1 has a configuration in which a double-sided adhesive film is punched into a square shape or a tape shape in accordance with the shape of the frame body. However, it is very difficult to attach a double-sided double-sided pressure-sensitive adhesive film to a support plate with high precision and accuracy. For this reason, the double-sided pressure-sensitive adhesive film may be displaced, and a gap may be formed between the support plate and the front panel. Moreover, in a tape-shaped double-sided adhesive film, since it is necessary to overlap an edge part, there exists a possibility that a level | step difference may be formed in one edge part and a slight clearance gap may be formed in this level | step-difference part. Furthermore, the frame body may be formed by combining the upper, lower, left, and right sides as different parts and then combining them. When combining each part, a slight level difference may occur between adjacent parts. In this case, the adhesive double-sided tape cannot absorb the level difference, and there is a possibility that a gap is formed between the support plate and the front panel. Thus, in the state where a gap is formed between the support plate and the front panel, for example, when a stock solution of foaming resin is injected into the frame body, the stock solution enters the gap and foams, and the front panel is If the foamable resin is peeled off or leaks from the gap and exposed to the outside, the appearance design may be impaired.

Also, every time the refrigerator opens and closes the door, an impact is applied to the front panel. At this time, when the adhesive strength between the support plate and the front panel is reduced due to the gap formed between the support plate and the front panel, the front panel is peeled off when the door is opened and closed. There is a fear.

The present invention has been made to solve the above-described problems, and has a structure in which the frame member and the decorative board are adhered to each other without any gap, and can have an excellent appearance in design and safety. It is another object of the present invention to provide a highly reliable refrigerator that can be used with confidence and a method for manufacturing the refrigerator.

The refrigerator according to the present invention includes an opening provided on a front surface, a refrigerator main body having at least one storage chamber, and a door portion that opens and closes the opening of the storage chamber, the door portion being rectangular. A frame member having a shape, an inner plate that closes an opening surface on the storage chamber side of the frame member, a decorative plate that closes an opening surface on the front side of the frame member, and the frame member, the inner plate, and the decorative plate are sealed And a hot melt for adhering the frame member and the decorative board to each other.

According to the present invention, since the adhesive force is high and the frame member and the decorative board are closely adhered to each other with a hot melt having fluidity when melted by applying heat, the sealed internal space is filled. Thus, the heat insulating material does not leak to the outside, and an appearance with excellent design can be exhibited. Moreover, since the adhesive strength of a frame member and a decorative board can be raised, it can be used safely and safely.

It is a perspective view of the refrigerator which concerns on embodiment of this invention. It is a disassembled perspective view of the door part of the refrigerator which concerns on embodiment of this invention. It is sectional drawing of the door part of the refrigerator which concerns on embodiment of this invention. It is an enlarged view of the A section shown in FIG. It is explanatory drawing which showed the modification of the refrigerator which concerns on embodiment of this invention. It is explanatory drawing which showed the modification of the refrigerator which concerns on embodiment of this invention. It is the top view which showed the state which provided the hot melt to the frame member of the refrigerator which concerns on embodiment of this invention. It is an enlarged view of the B section shown in FIG. It is the refrigerator which concerns on embodiment of this invention, Comprising: It is explanatory drawing which showed the point which attaches a decorative board to a frame member.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the drawings, the same or corresponding parts are denoted by the same reference numerals, and the description thereof is omitted or simplified as appropriate. Moreover, about the structure as described in each figure, the shape, a magnitude | size, arrangement | positioning, etc. can be suitably changed within the scope of the present invention.

Embodiment.
First, the whole structure of the refrigerator 100 of this Embodiment is demonstrated based on FIG. FIG. 1 is a perspective view of a refrigerator according to an embodiment of the present invention. As shown in FIG. 1, a refrigerator 100 has an opening on the front surface, a refrigerator body 1 in which a plurality of storage chambers 2 are formed by partitioning the interior with a plurality of partition plates, and a front surface of the refrigerator body 1. The door part 3 is provided and closes the opening part of each storage chamber so as to be freely opened and closed. In the refrigerator main body 1, a space sealed by a hard resin inner box which is the inside of the refrigerator 100 and a steel plate outer box which is the outside of the refrigerator 100 is formed. A space sealed with the inner box and the outer box is provided with a vacuum heat insulating material and filled with a foam heat insulating material such as urethane foam.

As an example, the storage room 2 includes a refrigerated room 20, a switching room 21, an ice making room 22, a freezing room 23, and a vegetable room 24 in order from the top. Each storage room is distinguished by a settable temperature zone (set temperature zone). For example, the refrigerator compartment 20 is about 3 ° C., the switching room 21 is 0 ° C. or −7 ° C., the ice making room 22 and the freezing room 23 are The vegetable room 24 can be set to about -12 ° C to -18 ° C and about 5 ° C. The storage chamber 2 is not limited to the illustrated configuration. Further, the set temperature of each storage room is not limited to this, and the setting can be appropriately changed according to the installation location and the contents.

The refrigerator compartment 20 is frequently used, and is arranged on the uppermost stage where the user can take in and out without bending. At the front opening of the refrigerating room 20, a double door refrigerating room door 30 composed of a refrigerating room left door and a refrigerating room right door is provided. The refrigeration room left door and the refrigeration room right door are rotatably supported by hinge portions that support the door rotation shaft.

The switching chamber 21 can be switched to a chilled temperature of about 0 ° C. or a soft freezing temperature of about −7 ° C., for example. A drawer-type switching chamber door 31 is provided at the front opening of the switching chamber 21. A drawer-type ice making room door 32 is provided at the front opening of the ice making room 22. A drawer-type freezer compartment door 33 is provided at the front opening of the freezer compartment 23. In addition, a drawer-type vegetable compartment door 34 is provided at the front opening of the vegetable compartment 24. In addition, although illustration was abbreviate | omitted, the door gasket which prevents an indoor outflow of indoor cool air is attached to each door part along the inner periphery.

Next, the configuration of the door 3 of the refrigerator 100 will be described with reference to FIGS. FIG. 2 is an exploded perspective view of the door portion of the refrigerator according to the embodiment of the present invention. FIG. 3 is a cross-sectional view of the door portion of the refrigerator according to the embodiment of the present invention. FIG. 4 is an enlarged view of a part A shown in FIG. In addition, in this Embodiment, although the vegetable compartment door 34 provided in the front opening part of the vegetable compartment 24 is demonstrated as an example of the door part 3, it is not limited to this. Even the door portion 3 constituting the other storage chamber 2 can be similarly implemented.

As shown in FIG. 2, the vegetable compartment door 34 includes a rectangular frame member 4, an inner plate 5 that closes the opening surface of the frame member 4 on the vegetable compartment side, and a makeup that closes the opening surface on the front side of the frame member 4. And a plate 6. Moreover, as shown in FIG.3 and FIG.4, the vegetable compartment door 34 is the heat insulating material 7 provided in the space sealed with the frame member 4, the inner board 5, and the decorative board 6, and the frame member 4 and the decorative board 6 And a hot melt 8 for adhering to each other.

As shown in FIG. 2, the frame member 4 is made of, for example, a synthetic resin and has a substantially rectangular shape when seen in a plan view. The frame member 4 is formed by, for example, forming four sides on the top, bottom, left, and right as different parts and combining them. This is to reduce the cost of a mold used for molding each part and facilitate handling after molding.

The frame member 4 includes an outer frame portion 40 that forms the outer periphery, and an adhesive surface portion 41 that is provided along the periphery of the outer frame portion 40. As shown in FIGS. 2 and 3, the bonding surface portion 41 provided on the upper edge side of the outer frame portion 40 is provided to be bent outward from the end edge of the outer frame portion 40. On the other hand, the bonding surface portions 41 provided on the left and right edges and the lower edge of the outer frame portion 40 are provided to be bent inward from the edge of the outer frame portion 40. The adhesive surface 41 is formed with a width dimension greater than 30mm below 10 mm _{L 1.} When the width L ₁ of the adhesive surface 41 is less than 10 mm, the adhesion area is small and the adhesive strength is low, veneer 6 is likely to be peeled off from the frame member 4. On the other hand, the bonding surface portion 41 may have a slight warp. Therefore, when the width dimension L ₁ of the adhesive surface 41 is greater than 30 mm, when the pressure-bonding the veneer 6 to the adhesive surface 41, be corrected by the stiffness of the adhesive surface 41 becomes difficult, and the adhesive surface 41 veneer 6 Cannot be sufficiently brought into surface contact, and the adhesive strength may be reduced. In addition, the amount of hot melt 8 applied increases, which may increase manufacturing costs. That is, in the refrigerator 100 of the present embodiment, by providing the bonding surface portion 41 with a width dimension L ₁ of 10 mm or more and 30 mm or less, a sufficient bonding area is secured and the bonding strength between the bonding surface portion 41 and the decorative plate 6 is increased. And the problem that the decorative plate 6 is peeled off from the adhesive surface portion 41 can be prevented. The width dimension _{L 1} of the adhesive surface 41, it is, more preferably 15mm or more 30mm or less.

As shown in FIG. 3, a hook portion 42 that holds the decorative plate 6 is provided at the edge of the adhesive surface portion 41 provided on the upper edge of the outer frame portion 40. Further, as shown in FIGS. 3 and 4, the outer edge of the decorative plate 6 placed on the adhesive surface 41 is protruded between the left and right edges and the lower edge of the outer frame 40 and the adhesive surface 41. A stepped portion 43 is provided. In addition, a bonding surface portion 41 on the left edge, right edge, or lower edge of the outer frame portion 40 is formed by bending outward from the edge of the outer frame portion 40, and a hook portion is formed on the edge of the bonding surface portion 41. 42 may be provided. Further, the adhesive surface portion 41 on the upper edge of the outer frame portion 40 is formed by bending inward from the edge of the outer frame portion 40, and a step is formed between the upper edge of the outer frame portion 40 and the adhesive surface portion 41. The part 43 may be provided.

The inner plate 5 is made of, for example, a synthetic resin, and is provided to face the decorative plate 6 with a heat insulating material 7 interposed therebetween as shown in FIG. Although not shown in the figure, a frame structure that supports the vegetable compartment door 34 movably with respect to the refrigerator body 1 is attached to the vegetable compartment side of the inner plate 5.

The decorative board 6 forms the surface of the vegetable compartment door 34. As shown in FIG. 2, the decorative plate 6 includes a transparent glass plate 60 and a design sheet 61 that is attached to the back surface of the glass plate 60. The glass plate 60 has a thickness of about 4 mm, for example. The design sheet 61 has a thickness of about 0.1 mm to 0.5 mm, for example. The design sheet 61 has various colors and patterns on the surface, and enhances the design of the door portion 3 by the colors and patterns seen through the glass plate 60.

As shown in FIG. 3, the heat insulating material 7 includes a foam heat insulating material 70 made of urethane foam and a vacuum heat insulating material 71. The foam heat insulating material 70 is foamed by injecting a urethane stock solution in which polyol, isocyanate, moisture, and a foaming agent such as cyclopentane are mixed into a space sealed by the frame member 4, the inner plate 5 and the decorative plate 6. It has been made. The foam heat insulating material 70 fills the inside of the frame member 4 by evaporating the foaming agent by reaction heat while the urethane stock solution is solidified and foaming and expanding in a sponge shape. The vacuum heat insulating material 71 is attached to the inner surface side of the inner plate 5 by, for example, rubber-based hot melt.

As the hot melt 8, for example, a urethane-based hot melt that does not melt again with heat once it is hardened, such as a type that is cured by moisture, is used. When the foam heat insulating material 70 is foamed, the reaction heat may rise to a maximum of nearly 140 ° C. in some cases. Therefore, for example, a hot melt of a type that is once solidified and then melted again with heat, such as a rubber-based hot melt used for fixing a vacuum heat insulating material, melts during foaming of the foam heat insulating material 70 and foams. There is a risk of being pushed out of the gap between the decorative plate 6 and the frame member 4 due to the pressure. Therefore, in this embodiment, a urethane-based hot melt is used. However, the hot melt 8 is not limited to the urethane-based hot melt, and may be other types. Further, depending on the structure of the door portion 3 and the like, rubber-based hot melt may be used.

The hot melt 8 is provided on the surface of the bonding surface portion 41 along the periphery of the frame member 4. The hot melt 8 has a thickness of 0.2 mm or greater and 0.3 mm or less. If the thickness of the hot melt 8 is thinner than 0.2 mm, there is a possibility that the bonding surface portion 41 and the decorative board 6 cannot be sufficiently bonded. Further, if the hot melt 8 is thicker than 0.3 mm, a part of the hot melt 8 may leak to the outside through the gap between the adhesive surface portion 41 and the decorative plate 6. That is, the refrigerator 100 of the present embodiment can sufficiently bond the adhesive surface 41 and the decorative plate 6 by setting the hot melt 8 to the above thickness, and a part of the applied hot melt 8 is bonded. A situation in which leakage from the gap between the face portion 41 and the decorative plate 6 to the outside can be prevented.

Further, as shown in FIG. 4, the hot melt 8 is provided with a gap S of about 2 mm to 3 mm between the step portion 43. If the hot melt 8 is provided up to a position close to the stepped portion 43, the hot melt 8 may be exposed to the outside. On the other hand, if a gap is excessively provided between the stepped portion 43, water, food soup or cleaning detergent may enter the gap, and the design sheet 61 may be peeled off or discolored. That is, the refrigerator 100 provides the hot melt 8 with a gap S of about 2 mm to 3 mm between the stepped portion 43 so that the hot melt 8 cannot be seen from the outside and is used for water, food soup or cleaning. Even if a detergent or the like enters a small gap, it does not reach the surface of the design sheet 61, so that the design of the appearance can be maintained over a long period of time.

FIG. 5 and FIG. 6 are explanatory diagrams showing modifications of the refrigerator according to the embodiment of the present invention. As shown in FIG. 5, it is desirable that the hot melt 8 has a configuration in which an extending portion 81 that partially protrudes from the front end edge of the bonding surface portion 41 is formed. If there is a gap between the front end portion of the bonding surface portion 41 and the decorative plate 6, the urethane stock solution injected into the frame member 4 enters the gap, and the decorative plate 6 and the bonding surface portion 41 are brought into contact with the foaming pressure of the urethane foam. There is a risk of lowering the adhesive strength. That is, by forming the extending portion 81 in the hot melt 8, it is possible to prevent the urethane stock solution from entering between the front end portion of the adhesive surface portion 41 and the decorative plate 6.

Further, as shown in FIG. 6, it is desirable that the hot melt 8 has a configuration in which a widened portion 82 having a width dimension larger than the width dimension of the side portion is provided at the corner portion of the frame member 4. When the hot melt 8 is applied to the surface of the bonding surface portion 41 along the periphery of the outer frame portion 40 in a bead shape, the corner portion of the frame member 4 has an R shape, and when it is crushed, the hot melt 8 is sufficiently extended to the end portion. There is a risk that it will be out of reach. In this case, the bonding area between the decorative plate 6 and the bonding surface portion 41 is reduced at the corners, and the bonding strength is low. Therefore, by providing the widened portion 82 in the hot melt 8, the adhesive strength between the decorative plate 6 and the adhesive surface portion 41 at the corner portion of the frame member 4 can be increased.

Next, a method for manufacturing the refrigerator according to the present embodiment will be described based on FIGS. 7 to 9 with reference to FIGS. FIG. 7 is a plan view showing a state in which hot melt is provided on the frame member of the refrigerator according to the embodiment of the present invention. FIG. 8 is an enlarged view of a portion B shown in FIG. FIG. 9 is an explanatory view showing the point of attaching the decorative plate to the frame member, which is the refrigerator according to the embodiment of the present invention.

As shown in FIG. 7, hot melt 8 is applied in a bead shape along the periphery of the outer frame portion 40 on the surface of the adhesive surface portion 41, and as shown in FIG. 8, at the intermediate portion of any one side portion. The overlapping part 80 is formed by overlapping the part where the application is started and the part where the application is finished. The reason why the overlapping portion 80 is formed at the intermediate portion of any one of the side portions is that the side portion is easier to form the overlapping portion 80 than the corner portion of the bonding surface portion 41, and the operator can easily work. It is taken into consideration. The hot melt 8 is applied at a position about 5 mm away from the tip end portion of the bonding surface portion 41 as shown in FIGS.

The overlapping portion 80 is formed with a length L ₂ that is less than or equal to half the width dimension L ₁ of the bonding surface portion 41. In other words, the overlapping part 80, when the width dimension _{L 1} of the adhesive surface 41 is 20 mm, formed following a length _{L 2} 10 mm. The application amount of the hot melt 8 in the overlapping portion 80 is double that of the hot melt 8 in other portions. Therefore, by forming the overlapping portion 80 in length longer than half of the width dimension L ₁ of the adhesive surface 41, a decorative plate 6 when the pressure-bonded to the adhesive surface 41, a possibility that the hot-melt 8 surplus leaks to the outside There is. Therefore, in the manufacturing method of the refrigerator 100 in the present embodiment, a situation in which the width dimension L ₁ of less than half the length L ₂ of the adhesive surface 41 of the overlapping portion 80 is formed, the hot melt 8 surplus leaks to the outside It is set as the structure which prevented.

And as shown in FIG. 9, the outer edge part of the decorative board 6 is mounted in the adhesive surface part 41, the outer edge part of the decorative board 6 and the adhesive surface part 41 are crimped | bonded, and as shown in FIG. The adhesive surface part 41 and the decorative board 6 are bonded by crushing. The hot melt 8 can secure a wide bonding area with a small amount. Moreover, since the hot melt 8 is easy to handle, anyone can apply it in a bead shape stably without interruption, regardless of the skill of the operator. In the foam heat insulating material 70, after the inner plate 5 and the decorative plate 6 are attached to the frame member 4, the stock solution is injected from the injection hole provided in the inner plate 5.

As described above, the refrigerator 100 according to the present embodiment is provided with the opening on the front surface, the refrigerator main body 1 having at least one storage chamber 2, and the door 3 that closes the opening of the storage chamber 2 so as to be openable and closable. It is equipped with. The door 3 includes a rectangular frame member 4, an inner plate 5 that closes the opening surface of the frame member 4 on the storage chamber side, a decorative plate 6 that closes the opening surface on the front side of the frame member 4, and the frame member 4 It has the heat insulating material 7 provided in the space sealed with the inner board 5 and the decorative board 6, and the hot melt 8 which adhere | attaches the frame member 4 and the decorative board 6. FIG. Specifically, the frame member 4 includes an outer frame portion 40 that forms the outer periphery, and an adhesive surface portion 41 that is provided along the periphery of the outer frame portion 40. The hot melt 8 is provided on the surface of the bonding surface portion 41 along the periphery of the frame member 4. Then, the bonding surface portion 41 and the decorative plate 6 are bonded by the hot melt 8. Therefore, the refrigerator 100 has a high adhesive force and is configured to be bonded with the frame member 4 and the decorative board 6 being closely adhered to each other with the hot melt 8 having fluidity when melted by applying heat. The heat insulating material 7 filled in the space does not leak to the outside, and an appearance with excellent design can be exhibited. Moreover, since the adhesive strength of the frame member 4 and the decorative board 6 can be raised, it can be used safely and safely.

In addition, since the hot melt 8 is indefinite, the frame member 4 is configured by assembling a plurality of different parts, and even if there is a step in the joint portion of each part, the step fits into the step, so that a gap is surely generated. Can be prevented.

Adhesion surface portion 41 is provided with a width dimension _{L 1} of 10mm or more 30mm or less. Therefore, in the refrigerator 100 of the present embodiment, the bonding area between the decorative plate 6 and the bonding surface portion 41 can be sufficiently secured, and there is no need to correct the bonding surface portion 41. The adhesive strength can be increased, and a problem that the decorative board 6 is peeled off from the adhesive surface portion 41 can be prevented.

Further, the hot melt 8 is formed with an extending portion 81 that partially protrudes from the leading edge of the bonding surface portion 41. Therefore, the refrigerator 100 of this Embodiment can prevent the situation where a urethane stock solution enters between the front-end | tip part of the adhesion surface part 41, and the decorative board 6, and raises the adhesive strength of the frame member 4 and the decorative board 6. be able to.

Further, the hot melt 8 has a thickness of 0.2 mm or more and 0.3 mm or less. That is, the refrigerator 100 of the present embodiment can sufficiently bond the bonding surface portion 41 and the decorative plate 6, and a part of the applied hot melt 8 is externally exposed from the gap between the bonding surface portion 41 and the decorative plate 6. It is possible to prevent the situation from leaking.

Moreover, the manufacturing method of the refrigerator which concerns on this Embodiment apply | coats the hotmelt 8 on the surface of the adhesive surface part 41 along the periphery of the outer frame part 40 at bead shape, and is the intermediate part of any one side part. Thus, the overlapping part 80 is formed by overlapping the part where the application is started and the part where the application is finished. Then, the decorative plate 6 is pressure-bonded to the bonding surface portion 41, and the hot melt 8 is crushed to bond the bonding surface portion 41 and the decorative plate 6 together. Therefore, since the refrigerator 100 manufactured by the manufacturing method has the hot melt 8 applied without gaps along the periphery of the outer frame portion 40, the bonding strength between the frame member 4 and the decorative plate 6 is reliably increased. And can have an appearance with excellent design.

The overlapping portion 80 is formed by being overlapped with a length L ₂ that is equal to or less than half the width dimension L ₁ of the bonding surface portion 41. Therefore, when the decorative board 6 is crimped | bonded to the adhesion surface part 41, the situation where the excess hot melt 8 leaks outside can be prevented.

Although the present invention has been described above based on the embodiment, the present invention is not limited to the configuration of the embodiment described above. For example, the decorative board 6 may be a steel plate or a structure in which a design sheet is attached to an acrylic plate. In addition, the frame member 4 is not limited to the illustrated form, and may include other parts as long as it has an outer frame part 40 that forms the outer periphery and an adhesive surface part 41 provided along the periphery of the outer frame part 40. It may be a form. In short, the present invention includes a range of design changes and application variations usually made by those skilled in the art without departing from the technical idea thereof.

1 refrigerator body, 2 storage room, 3 door part, 4 frame member, 5 inner plate, 6 decorative board, 7 heat insulating material, 8 hot melt, 20 cold storage room, 21 switching room, 22 ice making room, 23 freezing room, 24 vegetables Room, 30 refrigeration room door, 31 switching room door, 32 ice making room door, 33 freezing room door, 34 vegetable room door, 40 outer frame part, 41 adhesion surface part, 42 hook part, 43 step part, 60 glass plate, 61 design Sheet, 70 foam insulation, 71 vacuum insulation, 80 overlapping part, 81 extension part, 82 widening part, 100 refrigerator.

Claims

A refrigerator body having an opening on the front surface and having at least one storage chamber;
A door portion that freely opens and closes the opening of the storage chamber,
The door part is
A rectangular frame member;
An inner plate that closes the opening surface on the storage chamber side of the frame member;
A decorative plate that closes the opening surface on the front side of the frame member;
A heat insulating material provided in a space sealed by the frame member, the inner plate and the decorative plate;
A refrigerator comprising: a hot melt for bonding the frame member and the decorative plate.
The frame member has an outer frame portion that forms an outer periphery, and an adhesive surface portion provided along a periphery of the outer frame portion,
The hot melt is provided on the surface of the adhesive surface portion along the periphery of the frame member,
The refrigerator according to claim 1, wherein the bonding surface portion and the decorative plate are bonded by the hot melt.
The refrigerator according to claim 2, wherein the adhesive surface portion is provided with a width dimension of 10 mm or more and 30 mm or less.
The refrigerator according to claim 2 or 3, wherein the hot melt is formed with an extending portion that partially protrudes from a leading edge of the adhesive surface portion.
The refrigerator according to any one of claims 1 to 4, wherein the hot melt has a thickness of 0.2 mm to 0.3 mm.
It is a manufacturing method of the refrigerator of Claim 2, Comprising:
The hot melt is applied in the form of a bead along the peripheral edge of the outer frame portion on the surface of the adhesive surface portion, and at the intermediate portion of any one side portion, the location where the application is started and the application are finished. Overlap with the place to be formed to form an overlapping part,
The manufacturing method of a refrigerator which press-bonds the said decorative board to the said adhesive surface part, crushes the said hot melt, and adhere | attaches the said adhesive surface part and the said decorative board.
The method for manufacturing a refrigerator according to claim 6, wherein the overlapping portion is formed by being overlapped with a length equal to or less than half of the width dimension of the bonding surface portion.