CN115349074B - Refrigerator with a refrigerator body - Google Patents

Refrigerator with a refrigerator body Download PDF

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Publication number
CN115349074B
CN115349074B CN202080098996.8A CN202080098996A CN115349074B CN 115349074 B CN115349074 B CN 115349074B CN 202080098996 A CN202080098996 A CN 202080098996A CN 115349074 B CN115349074 B CN 115349074B
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China
Prior art keywords
front surface
cover
surface plate
refrigerator
plate
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CN202080098996.8A
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CN115349074A (en
Inventor
杉崎沙织
大石隆
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Mitsubishi Electric Corp
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Mitsubishi Electric Corp
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Publication of CN115349074A publication Critical patent/CN115349074A/en
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D23/00General constructional features
    • F25D23/02Doors; Covers

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Refrigerator Housings (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)

Abstract

The invention provides a refrigerator, which is provided with a refrigerator door capable of fixing the front surface plates of both a glass surface material and a steel plate to the same frame component. A refrigerator door (14) of a refrigerator (1) is provided with a door frame (35), a back plate (36) and a front surface plate (33), wherein the door frame (35) is provided with an upper cover, a lower cover, a right cover and a left cover. The lower cover has: a plate-shaped cover main body, a front side rib extending upwards from the upper surface of the cover main body, and a concave part (57 d) between the cover main body and the front side rib. The front rib has an adhesive surface on a front surface. The front rib is provided at a position rearward of the front end of the cover body, the distance being such that the cover body can support the glass plate, and the cover body has a support surface (55 d) on the upper surface forward of the front rib. When the front surface plate (33) is formed from a steel plate material, the front surface plate (33) has an end bent to the back side at the lower side, and the end is inserted into the recess. When the front surface plate (33) is formed of glass, the lower side surface of the front surface plate (33) is supported by a support surface (55 d), and the back surface of the front surface plate (33) is joined to the adhesive surface.

Description

Refrigerator with a refrigerator body
Technical Field
The present invention relates to a door of a refrigerator.
Background
In a refrigerator, a front surface plate of a refrigerator door for opening and closing a storage compartment mainly uses a glass surface material and a steel plate. In general, the thickness of a glass surface material used for a front surface plate of a refrigerator door is larger than that of a steel plate. In the case of attaching the front surface plate to the frame member of the refrigerator door, in the case of the front surface plate being a steel plate, a groove for holding an end surface of the steel plate is provided in the frame member. On the other hand, when the front surface plate is a glass surface material, a receiving surface for supporting the glass surface material in the height direction and an adhesive surface for fixing the glass surface material along the back surface of the glass surface material are provided on the frame member.
As a conventional refrigerator door, a groove is formed in a frame member of the refrigerator door, and an inwardly bent flange provided at a peripheral edge portion of a thin plate such as a steel plate is fitted into the groove, thereby forming a door body. When the decorative plate is attached to the door body, the decorative plate is superimposed on the surface of the door body, and the trim (cover) is fitted over the decorative plate, and the trim is fixed to the frame member by screws, whereby the decorative plate is attached to the door body. (for example, refer to patent document 1.)
Patent document 1: japanese patent laid-open No. 62-98181
However, in the refrigerator described above, a cover is required for attaching the decorative plate to the front surface of the door, and a step of attaching the cover to the door frame with screws is required. In addition, no countermeasure has been made for the case where a front surface plate, such as a glass plate having a thickness with respect to a steel plate, which does not have an inwardly bent flange at a peripheral edge portion, is attached to a frame member.
Disclosure of Invention
The present invention solves the problem that in a door of a refrigerator, the front surface plates of both the glass surface material and the steel plate can be fixed to the same frame member while suppressing the increase of the members.
In order to solve the above problems, a refrigerator according to the present invention includes: a refrigerator main body having a storage chamber inside; and a refrigerator door which opens and closes the storage chamber of the refrigerator main body. The refrigerator door has a door frame, a back plate, and a front surface plate, and the door frame has an upper cover, a lower cover, a right cover, and a left cover. The lower cover has: the refrigerator door comprises a plate-shaped cover main body forming the lower surface of the refrigerator door, a front side rib arranged on the upper surface of the cover main body and extending upwards, and a concave part for clamping the front surface plate between the front side rib and the cover main body. The front rib has an adhesive surface on the front surface for adhering to the front surface plate. The front rib is provided at a position rearward of the front end of the cover main body by a distance that enables the cover main body to support the glass plate. The cover main body has a support surface on an upper surface in front of the front rib. In the case where the front surface plate is formed of a steel plate material, the front surface plate has an end portion bent to the rear side at the lower side, and the end portion is inserted into the recess. When the front surface plate is formed of glass, the lower side surface of the front surface plate is joined to the support surface, and the rear surface of the front surface plate is joined to the adhesive surface.
According to the present invention, the front surface plate of the glass surface material and the front surface plate of the steel plate material can be fixed to the same frame member, that is, the door frame, while suppressing an increase in the members.
Drawings
Fig. 1 is a front view of a refrigerator in embodiment 1 of the present invention.
Fig. 2 is a sectional view of a refrigerator in embodiment 1 of the present invention.
Fig. 3 is a schematic view of the left door and the right door of the refrigerator in embodiment 1 of the present invention.
Fig. 4 is a perspective view of a left cover and a lower cover of a right door of a refrigerator compartment in embodiment 1 of the present invention.
Fig. 5 is a cross-sectional view of the front surface plate and the lower cover of the right door of the refrigerator compartment in the case where a steel plate material is used for the front surface plate in embodiment 1 of the present invention.
Fig. 6 is a cross-sectional view of a front surface plate and a lower cover of a refrigerator right door having a glass front surface plate according to embodiment 1 of the present invention.
Fig. 7 is a cross-sectional view of a front surface plate and a right cover of a refrigerator right door in which a steel plate material is used for the front surface plate in embodiment 1 of the present invention.
Fig. 8 is a cross-sectional view of a front surface plate and a right cover of a refrigerator right door having glass as the front surface plate in embodiment 1 of the present invention.
Fig. 9 is a cross-sectional view of a right cover of a right door of a refrigerator compartment in embodiment 1 of the present invention.
Fig. 10 is a cross-sectional view of a lower cover of a right door of a refrigerator compartment in embodiment 2 of the present invention.
Fig. 11 is a cross-sectional view of a lower cover of a right door of a refrigerator compartment in embodiment 2 of the present invention.
Fig. 12 is a cross-sectional view of the lower cover of the right door of the refrigerator compartment in embodiment 3 of the present invention.
Detailed Description
Hereinafter, a refrigerator according to an embodiment of the present specification will be described with reference to the accompanying drawings. The present description is not limited to the following embodiments, and may be modified or omitted within a range not departing from the gist of the present description. Moreover, the drawings sometimes simplify the actual construction. In the drawings, the size of each constituent and the positional relationship between the constituent may be different from actual ones. In addition, for reference to the reference numerals, the same reference numerals are given to the same parts, which is common throughout the specification. In the following description, for easy understanding, terms indicating directions (e.g., "upper", "lower", "left", "right", etc.) are used as appropriate "right", "front", "near", "rear", "inner", "deep", "inner", "outer", etc.), however, this is for illustration only, and these terms are not intended to limit the present invention. In this specification, when the refrigerator and the refrigerator door included in the refrigerator are viewed from the front, the above expression is used to indicate the positional relationship with respect to each constituent of the refrigerator and the refrigerator door. In the present specification, right angle means an angle in the range of 90±5°.
Embodiment 1.
The structure of the refrigerator 1 according to embodiment 1 will be described below.
Fig. 1 is a front view of a refrigerator 1 in embodiment 1 of the present invention.
Fig. 2 is a cross-sectional view of the refrigerator 1 in embodiment 1 of the present invention.
As shown in fig. 1 and 2, the refrigerator 1 includes a cabinet 2 as a refrigerator main body. The front face (front face) of the case 2 is open and a storage space 3 is formed therein. The case 2 is composed of an outer case 4 made of steel plate, an inner case 5 made of resin, and a heat insulating material 6 filled between the outer case 4 and the inner case 5. The storage space 3 is separated into a plurality of storage compartments, namely, a refrigerating compartment 8, a switching compartment 9, an ice making compartment 10, a freezing compartment 11, and a vegetable compartment 12, by a plurality of heat-insulating partition walls 7.
Below the refrigerating chamber 8, a switching chamber 9 capable of switching a refrigerating temperature zone and an ice making chamber 10 adjacent to the switching chamber 9 are arranged. A freezing chamber 11 is disposed below the switching chamber 9 and the ice making chamber 10, and a vegetable chamber 12 is disposed below the freezing chamber 11.
The front surface opening of the refrigerator compartment 8 is opened or closed by a refrigerator compartment left door 13 as a refrigerator door and a refrigerator compartment right door 14.
The refrigerator left door 13 and the refrigerator right door 14 are attached to the refrigerator main body using hinges not shown. The refrigerating chamber left door 13 and the refrigerating chamber right door 14 are rotatable doors, and are rotatable independently of each other. Front surface openings of the switching chamber 9, the ice making chamber 10, the freezing chamber 11, and the vegetable chamber 12 are opened or closed by a drawer type switching chamber door 15, an ice making chamber door 16, a freezing chamber door 17, and a vegetable chamber door 18, respectively.
In the present embodiment, the front surface opening of the refrigerator compartment 8 is opened or closed by the refrigerator compartment left door 13 and the refrigerator compartment right door 14, but the present invention is not limited thereto, and the refrigerator door may be configured to be opened or closed by one refrigerator door. The positions of the switching chamber 9 and the ice making chamber 10 may be opposite to those of fig. 1.
In fig. 1, the refrigerating chamber 8 is disposed at the uppermost layer, the switching chamber 9 and the ice making chamber 10 are disposed in parallel at the lower left and right sides thereof, the freezing chamber 11 is disposed at the lower side thereof, and the vegetable chamber 12 is disposed at the lowermost layer, but the storage space 3 in the refrigerator 1 is not limited to such a configuration.
The freezing compartment 11 includes a cooler 31, and cool air cooled by the cooler 31 is blown to the refrigerating compartment 8, the switching compartment 9, the ice making compartment 10, the freezing compartment 11, and the vegetable compartment 12.
The refrigerator 1 includes an operation panel 20 on the front surface side of the refrigerator left door 13 or the refrigerator right door 14. The operation panel 20 is a user interface for setting the refrigerator 1 according to the operation contents of a user. The set temperatures of the respective chambers of the refrigerator compartment 8, the switching compartment 9, the freezer compartment 11, and the vegetable compartment 12 can be adjusted by the operation panel 20.
The refrigerator 1 includes door closing devices (not shown) at left and right lower portions of the refrigerator left door 13 and the refrigerator right door 14, respectively, when viewed from the front.
Fig. 2 is a view showing a section of the refrigerator 1 in a depth direction at a position of a right door of a refrigerating chamber cut in a longitudinal direction.
A vacuum heat insulating material for reducing the heat invasion amount of heat from outside the refrigerator 1 to the storage space 3 is provided between the outer case 4 and the inner case 5. The refrigerating chamber left door vacuum heat insulator 23, the refrigerating chamber right door vacuum heat insulator 24, the freezing chamber door vacuum heat insulator 25, and the vegetable chamber door vacuum heat insulator 26 are provided inside the refrigerating chamber left door 13, the refrigerating chamber right door 14, the freezing chamber door 17, and the vegetable chamber door 18. As an example, the thermal conductivity λ of the vacuum heat insulating material used in the above-described configuration is 0.002W/m·k.
Further, foamed polyurethane 27 is filled between the vacuum heat insulating material 23 for the left door of the refrigerator and the outer frame of the left door 13 of the refrigerator and between the vacuum heat insulating material 24 for the right door of the refrigerator and the outer frame of the right door 14 of the refrigerator. As an example, the thermal conductivity lambda of the foamed polyurethane 27 is 0.02W/mK.
A compressor 30 is disposed at a lower portion of the rear surface of the refrigerator 1. The refrigerant compressed by the compressor 30 is condensed in a condenser (not shown). The condensed refrigerant is depressurized in a capillary tube (not shown) as a depressurizer. The depressurized refrigerant evaporates in the cooler 31, and cools the periphery of the cooler 31 by an endothermic effect at the time of the evaporation. The compressor 30, the condenser, the capillary tube as a pressure reducer, and the cooler 31 constitute a refrigeration cycle.
A cool air duct 32 made of, for example, expanded polystyrene, which guides cool air into the refrigerating chamber 8 is provided on the back surface side of the refrigerating chamber 8. A synthetic resin control board (not shown) is provided on the front side of the cool air duct 32 so as to cover the cool air duct 32. The control board is covered with a steel plate screwed to the back surface of the outer case 4 of the refrigerator 1 and a heat insulating material, whereby the control board is mounted to the outer case 4. Commercial power is supplied to the control substrate.
A damper (not shown) provided in the cool air duct 32, the compressor 30, and the blower are controlled by a control board. The control board detects the temperatures of the refrigerating chamber 8, the switching chamber 9, the ice making chamber 10, the freezing chamber 11, and the vegetable chamber 12 by a temperature detecting device (not shown) such as a thermistor, and controls the cooling capacity of the refrigeration cycle, the start and stop of the cooling operation, the opening and closing of the damper, and the operation state of the blower so that the storage space 3 becomes a target set temperature.
Fig. 3 is a perspective view showing the components constituting the left door 13 and the right door 14 in a separated state. An operation panel 20 is disposed on the refrigerating compartment left door 13.
As shown in fig. 3, the right door 14 is composed of a front surface plate 33 forming an exterior panel, a double-sided tape 34, a door frame 35 as a frame member of the right door 14, a vacuum heat insulating material 24, and a back surface plate 36. The front surface plate 33 is formed using glass. The vacuum heat insulating material 24 is disposed in the door frame 35, and a back plate 36 is attached to the rear side of the door frame 35. A front surface plate 33 is attached to the front side of the door frame 35 by a double-sided tape 34. Finally, foamed polyurethane (not shown) is injected into the gaps between the vacuum insulation material 24, the door frame 35, the front surface plate 33, and the back surface plate 36. Thus, the refrigerating compartment right door 14 is constituted. The left door 13 is composed of a front surface plate 133, a double-sided tape 134, a door frame 135 as a frame member of the left door, a vacuum heat insulating material 23 for the left door, and a back surface plate 136, similarly to the right door 14.
In addition, a hot melt adhesive (not shown) may be used instead of the double-sided tape 34.
Fig. 3 shows a structure in which the front surface plate 33 is formed of glass, but the double-sided tape 34 and the hot melt adhesive can be omitted from the structure of fig. 3 in the case where the front surface plate 33 is formed of a steel plate material. At this time, the front surface plate 33 has end portions 38a, 38b, 38c, and 38d bent rearward at the left, right, upper, and lower peripheral edge portions 37. The end 38b and the end 38d are shown in fig. 5 and 7. The end portion 38 is a member for attaching and fixing the front surface plate 33 to the door frame 35. In this case, the structure of the door frame 35 is the same as that of the front surface plate 33 formed of glass, and is the same as that shown in fig. 3.
In fig. 3, the door frame 35 of the right door 14 of the refrigerator includes a left cover 39a, a right cover 39b, an upper cover 39c, and a lower cover 39d. The door frame 35 is formed by assembling and fixing the left cover 39a, the right cover 39b, the upper cover 39c, and the lower cover 39d. The left cover 39a, the right cover 39b, the upper cover 39c, and the lower cover 39d constitute one side of the door frame, respectively.
Similarly, the door frame 135 of the refrigerator left door 13 includes a left cover 139a, a right cover 139b, an upper cover 139c, and a lower cover 139d. The door frame 135 is formed by assembling and fixing the left cover 139a, the right cover 139b, the upper cover 139c, and the lower cover 139d. The left cover 139a, the right cover 139b, the upper cover 139c, and the lower cover 139d each constitute one side of the door frame.
The left cover 39a, the right cover 39b, the upper cover 39c, and the lower cover 39d are each formed by molding plastic, but the materials of the left cover 39a, the right cover 39b, the upper cover 39c, and the lower cover 39d are not limited thereto, and may be formed by molding metal. The same applies to the refrigerating chamber left door 13.
In this specification, the structure of the refrigerating compartment right door 14 will be described. The refrigerator left door 13 has a structure that is laterally symmetrical to the refrigerator right door 14 although there is a difference in length between the left and right sides when mounted in the refrigerator 1, and therefore, a description thereof will be omitted in this specification.
Fig. 4 is a perspective view showing an enlarged portion of the left cover 39a and the lower cover 39D included in the region D of the door frame 35 in fig. 3. In fig. 4, the left cover 39a and the lower cover 39d of the door frame 35 are released from being coupled.
In fig. 4, the left cover 39a includes a left cover main body 40a that forms a left side surface of the door frame 35 when it is formed as a part of the door frame 35, a front rib 41a that extends upward and downward, a lower rib 42a that extends forward and backward, and a rear rib 43a that extends upward and downward. The front rib 41a, the lower rib 42a, and the rear rib 43a are provided on the right surface 44a, which is the inner surface of the left cover main body 40 a. The front rib 41a, the lower rib 42a, and the rear rib 43a are formed continuously from the left cover main body 40a, respectively, and have a shape that extends rightward and protrudes rightward when the door frame 35 is configured. The front rib 41a is disposed forward of the rear rib 43a. The lower rib 42a is disposed at the lower end of the left cover body 40 a. Although not shown, the left cover 39a has an upper rib at an upper end of the left cover main body 40a, and the upper rib is formed in a shape extending forward and backward, extending rightward, and protruding rightward. The upper rib is provided on the right surface 44a of the left cap body 40 a.
As shown in fig. 4, the left cover 39a has an engagement receiving rib 46a provided on the right surface of the left cover main body 40a in parallel with the lower rib 42a at a position above the lower rib 42 a. The engagement receiving rib 46a has an engagement receiving hole 47a for engagement receiving.
In fig. 4, the lower cover 39d has a lower cover main body 40d constituting the lower surface of the door frame 35, a front side rib 41d extending leftward and rightward, a left side rib 48a extending forward and rearward, and a rear side rib 43d extending leftward and rightward. The front rib 41d, the left rib 48a, and the rear rib 43d are provided on the upper surface, which is the inner surface of the lower cover main body 40d. The front rib 41d, the left rib 48a, and the rear rib 43d are formed continuously from the lower cover main body 40d, respectively, and have a shape extending upward and protruding upward when the door frame 35 is formed. The front rib 41d is disposed forward of the rear rib 43d. The left rib 48a is disposed at the left end of the lower cover body 40d. Although not shown, the lower cover 39d has a right rib 48b extending in the front-rear direction, extending in the upward direction, and protruding upward at the upper end of the lower cover main body 40d. The right rib 48b is provided on the upper surface of the lower cover main body.
The lower cover main body 40d of the lower cover 39d has a handle portion 49 protruding upward between the front side rib 41d and the rear side rib 43d.
The left rib 48a of the lower cover 39d is provided with a claw portion 51a extending in the rightward direction.
The lower cover 39d has a first locking rib 50a provided on the upper surface of the lower cover body 40d in parallel with the left rib 48a at a position on the right side of the left rib 48 a. The first locking rib 50a has a locking claw restricting portion 52a extending in the left direction.
Although not shown, the lower cover 39d has second locking ribs 50b on the upper surface of the lower cover body 40d at positions symmetrical to the first locking ribs 50a with respect to the left and right center surfaces of the door frame 35 when forming a part of the door frame 35. The right rib 48b and the second locking rib 50b are provided with a claw portion 51b and a claw restricting portion 52b, respectively, similarly to the left rib 48a and the first locking rib 50a, and the claw portion 51b and the claw restricting portion 52b are configured to be laterally symmetrical to the claw portion 51a and the claw restricting portion 52a.
The method of assembling and fixing the lower cover 39d to the left cover 39a is as follows.
The claw portion 51a of the lower cover 39d is brought into proximity with the engagement receiving hole 47a provided in the engagement receiving rib 46a of the left cover 39a from obliquely below, and the claw portion 51a is inserted into the engagement receiving hole 47a.
When the claw portion 51a is inserted into the engagement receiving hole 47a of the engagement receiving rib 46a, the claw portion 51a and the claw limiting portion 52a lock the engagement receiving rib 46a, whereby the left cover 39a is fixed to the lower cover 39d.
The right cover 39b is formed to be symmetrical to the left cover 39a with respect to the left and right center surfaces of the door frame 35 when forming a part of the door frame 35.
When forming a part of the door frame 35, the upper cover 39c is configured to be vertically symmetrical to the lower cover 39d with respect to the upper and lower center surfaces (horizontal surfaces) of the door frame 35.
The fixation of the lower cover 39d to the right cover 39b, the fixation of the upper cover 39c to the left cover 39a, and the fixation of the upper cover 39c to the right cover 39b are performed in the same manner as the method of assembling and fixing the lower cover 39d to the left cover 39a. The door frame 35 is formed by fixing the lower cover 39d to the left cover 39a, the lower cover 39d to the right cover 39b, the upper cover 39c to the left cover 39a, and the upper cover 39c to the right cover 39b.
Further, metal reinforcements (not shown) are attached to the inner sides of the left cover 39a and the right cover 39b, respectively. With such a structure, the left cover 39a and the right cover 39b are reinforced, and when foamed polyurethane is injected into the right door 14 of the refrigerator compartment, deformation of the door frame 35 caused by the foamed polyurethane pushing the door frame 35 from the inside can be suppressed.
The right door 14 is formed by attaching a front surface plate 33 and a back surface plate 36 to a door frame 35, disposing a vacuum heat insulating material 24 for the right door inside, and filling the door with foamed polyurethane.
The structure of the front surface plate 33 of the door frame 35 will be described.
Fig. 5 is a vertical cross-sectional view in the depth direction of the front surface plate 33a and the lower cover 39d of the refrigerator right door 14 in the case where the front surface plate 33 is formed using a steel plate material.
Fig. 6 is a vertical cross-sectional view in the depth direction of the front surface plate 33b and the lower cover 39d of the refrigerator right door 14 in the case where the front surface plate 33 is formed using glass.
In fig. 5 and 6, the structure of the lower cover 39d is the same.
The structure of the lower cover 39d will be described with reference to fig. 5.
Fig. 5 is a vertical sectional view in the depth direction of the front surface plate 33a and the lower cover 39d, and is a sectional view at a-a' of fig. 4. The lower cover 39d has a plate-like lower cover main body 40d forming a lower surface of the door frame 35 when forming a part of the door frame 35. The lower cover 39d has a front rib 41d formed continuously from the lower cover body 40d and extending upward on the upper surface of the lower cover body 40d. The lower cover 39d has a handle portion 49 protruding upward between the lower cover main body 40d and the front rib 41d.
The vertical cross section of the upper cover 39c shown in fig. 3 in the depth direction is vertically symmetrical to the lower cover 39d shown in fig. 5. However, the upper cover 39c has no structure corresponding to the handle portion 49 of fig. 5.
The front rib 41d is provided at a position rearward of the front end 53 of the lower cover main body 40d. The front rib 41d has, on the inner side (upper side) of the frame portion: a holding portion 71d connected to the lower cover main body 40d, extending forward in parallel with and apart from the lower cover; and an adhesive portion 70d connected to the holding portion 71d and extending upward. The front rib 41d is formed by the holding portion 71d and the adhesive portion 70 d. The portion of the lower cover main body 40d that is forward of the front rib 41d is a support portion 58d that supports the front surface plate 33 when the front surface plate 33 is formed using glass. The front rib 41d is provided at a position rearward of the front end 53 of the lower cover main body 40d by a distance that enables the support portion 58d forward of the front rib 41d to support the front surface plate 33b when glass is used for the front surface plate 33.
The front surface of the front rib 41d is an adhesion surface 60d for adhering and supporting the front surface plate 33b when the front surface plate 33 is formed of glass.
The upper surface of the supporting portion 58d is a supporting surface 55d for supporting the front surface plate 33b in the case where the front surface plate 33 is formed using glass.
Fig. 5 shows a structure in which the front surface plate 33a is attached to the lower cover 39d when the front surface plate 33 is formed using a steel plate material. In fig. 5, the front surface plate 33a has an end 38d bent to the rear surface side at the lower side. The inner width of the recess 57d is set to be substantially the same as the thickness of the end portion 38d.
The front surface plate 33a is attached to the lower cover 39d by pressing the end portion 38d into the recess 57d. At this time, the lower surface of the end portion 38d is brought into contact with the support surface 55d, and the front surface plate 33a is moved rearward to insert the end portion 38d into the recess 57d. The front surface plate 33a is fixed to the lower cover 39d by sandwiching the end 38d between the lower cover main body 40d and the front rib 41d. The depth of the recess 57d in the depth direction is formed such that the tip of the end 38d is fixed in contact with the bottom surface of the recess 57d when the end 38d is inserted.
Fig. 6 shows a structure in which the front surface plate 33b is attached to the lower cover 39d when the front surface plate 33 is formed of glass. In the refrigerator right door 14 of fig. 6, the lower side surface of the front surface plate 33b is supported in contact with the support surface 55d, and the rear surface of the front surface plate 33b and the adhesive surface 60d are joined via the double-sided tape 34 or the hot melt adhesive.
The bonding surface 60d and the supporting surface 55d are positioned at right angles to each other. With this configuration, the adhesion between the lower side surface of the front surface plate 33b and the support surface 55d and the adhesion between the rear surface of the front surface plate 33b and the adhesive surface 60d can be improved when the front surface plate 33b is attached to the lower cover 39d.
The front surface plate 33b is adhered to the lower cover 39d by a double-sided tape 34 or a hot melt adhesive. The double-sided tape 34 and the hot melt adhesive are omitted in fig. 6. The double-sided tape 34 and the hot melt adhesive have sufficient adhesive force against a force from the outside of the refrigerator when the front surface plate 33b is attached and fixed to the adhesive surface 60d. In the explanation of fig. 6, the lower side surface of the front surface plate 33b is in direct contact with the support surface 55d, but the present invention is not limited to this, and a buffer material or a sealing material may be disposed between the lower side surface of the front surface plate 33b and the support surface 55d.
As shown in fig. 5, when the front surface plate 33a formed of a steel plate material is attached to the lower cover 39d, the front surface plate 33a is separated from the adhesive surface 60d of the front rib 41d. The space formed by the separation of the two is filled with foamed polyurethane. In addition, the space between the front rib 41d and the grip portion 49 is also filled with foamed polyurethane.
When forming the right door 14 of the refrigerator, a back plate 36 is attached to the door frame 35, and foamed polyurethane is injected into the door frame 35 which opens upward with the back plate 36 facing downward. Then, the end portion 38d of the front surface plate 33a is pressed into the recess 57d of the lower cover 39d from above the door frame 35, and the front surface plate 33a is attached to the door frame 35. At this time, the foamed polyurethane in the center of the door frame 35 is pressed by the front surface plate 33a, and thus the foamed polyurethane is pushed into the space between the front surface plate 33a and the front side rib 41d and the space between the front side rib 41d and the grip portion 49. When the foamed polyurethane is pressed into the space between the front surface plate 33a and the front rib 41d and the space between the front rib 41d and the grip portion 49, the end portion 38d of the front surface plate 33a is pressed toward the support portion 58d by the foamed polyurethane. When the foamed polyurethane is pushed into the space between the front rib 41d and the grip portion 49, the front rib 41d is pressed by the foamed polyurethane in a direction to narrow the groove width of the recess 57d. Therefore, the ability of the lower cover 39d to fix the front surface plate 33a is improved as compared with the case where the foaming urethane is not injected, and the front surface plate 33a can be prevented from falling off the door frame 35 during foaming.
Fig. 7 is a horizontal cross-sectional view of the front surface plate 33 and the right cover 39b in the case where the front surface plate 33 is formed using a steel plate material.
Fig. 8 is a horizontal cross-sectional view of the front surface plate 33 and the right cover 39b in the case where the front surface plate 33 is formed using glass.
In fig. 7 and 8, the construction of the right cover 39b is the same.
Fig. 7 is a vertical sectional view in the depth direction of the front surface plate 33 and the right cover 39B, and is a sectional view at B-B' of fig. 3. As shown in fig. 7, the right cover 39b has: the door frame 35 includes a right cover main body 40b forming a right side surface of the door frame 35, a corner portion 56b formed continuously from the right cover main body 40b and provided in front of the right cover main body 40b, and a front side rib 41b extending in a left direction from a left side surface of the corner portion 56b. The front surface of the corner 56b forms the front surface of the right cover 39b, and the right side surface of the corner 56b coincides with the right side surface of the right cover main body 40 b. The thickness of the corner 56b in the left-right direction is larger than the thickness of the right cap body 40b in the left-right direction, and the corner 56b has a shape in which the front of the right end is chamfered obliquely.
As in fig. 5, the front rib 41b includes, on the inner side (toward the left) of the frame portion: a holding portion 71b connected to the corner portion 56b and extending forward in parallel with and apart from the corner portion 56 b; and an adhesive portion 70b connected to the holding portion 71b and extending inward (leftward).
The right cover 39b has a recess 57b between the corner 56b and the front rib 41b. The recess 57b is a groove for fixing the front surface plate 33a made of a steel plate material to the right cover 39b, and has a shape recessed rearward. The front rib 41b has an adhesive surface 60b on the front surface. The adhesive surface 60b is located at a position rearward of the front surface of the corner 56b. The support portion 58b located forward of the front rib 41b of the corner portion 56b has a function as a protection portion for protecting the front surface plate 33 from external impact. The left surface of the support portion 58b is a support surface 55b for supporting the front surface plate 33b in the case where the front surface plate 33 is formed using glass.
The bonding surface 60b and the supporting surface 55b are positioned at right angles to each other. With this configuration, the adhesion between the right side surface of the front surface plate 33b and the support surface 55b and the adhesion between the rear surface of the front surface plate 33b and the adhesive surface 60b can be improved when the front surface plate 33b is attached to the right cover 39b.
As shown in fig. 8, the distance between the front surface of the corner 56b and the depth direction of the adhesive surface 60b is as follows: when the front surface plate 33b formed of glass is joined to the adhesive surface 60b of the right cover 39b, the protecting portion covers the right side surface of the front surface plate 33b, and can protect the front surface plate 33b from the distance of the impact from the lateral direction to the front surface plate 33.
In fig. 7, the front surface plate 33a has an end 38b bent to the rear surface side on the right side thereof. By pressing the end portion 38b into the recess 57b, the front surface plate 33a is attached to the right cover 39b. The front surface plate 33a is fixed to the right cover 39b by sandwiching the end 38b between the corner 56b and the front rib 41b. The depth of the recess 57b in the depth direction is formed so that the tip of the end 38b is fixed in contact with the bottom surface of the recess 57b when the end 38b is inserted.
If the front surface of the corner 56b is located rearward of the front surface plate 33a, the cleaning performance is good and the appearance is improved.
In addition, in the case where the front surface plate 33 is formed using glass, the front surface of the corner 56b may be positioned forward of the front surface plate 33b. In this case, the front surface plate 33b can be protected from the impact from the lateral direction to the front surface plate 33b by the corner portion 56b.
The left cover 39a is symmetrical to the right cover 39b with respect to the left and right center surfaces of the door frame 35 when forming a part of the door frame 35, and the left cover 39a has a corner 56b. In addition, the present embodiment is not limited to this, and if the front surface plate 33 can be protected from the impact to the front surface plate 33 from the lateral direction by the corner 56b, the front surface of the corner 56b of the right cover 39b and the front surface of the corner 56b of the left cover may be provided at different positions in the front-rear direction.
In the present embodiment, the recesses 57a, 57b, 57c, and 57d are provided in all of the left cover 39a, the right cover 39b, the upper cover 39c, and the lower cover 39d, but the number of recesses provided in the door frame 35 and sandwiching the front surface plate 33 is not limited thereto. The concave portion may be formed by a steel plate material, so long as the front surface plate 33a is held by the door frame 35, and is fixed to the door frame 35 so as not to cause positional displacement of the front surface plate 33 with respect to the extrusion of the foamed polyurethane or the external force when the refrigerator 1 is used. As long as such a function is not impaired, the concave portion may be provided in at least one of the left cover 39a, the right cover 39b, the upper cover 39c, and the lower cover 39d.
In the present embodiment, all of the concave portions 57a, 57b, 57c, and 57d are provided in a concave rearward direction, but the present invention is not limited thereto.
As shown in fig. 9, in the right cover 39b, a recess 57b may be formed in the corner 56b in a direction recessed rightward in a position forward of the adhesive surface 60b. In the left cover 39a, the recess 57a may be formed in the corner 56b in a recessed direction to the left. As shown in fig. 5, the upper cover 39c and the lower cover 39d are formed with concave portions 57c and 57d recessed rearward.
In this case, the bent end portions 38c and 38d on the back surface side of the front surface plate 33a are inserted into the concave portions 57c and 57d of the upper cover 39c and the lower cover 39d, respectively, in the depth direction, so that the front surface plate 33a is fixed to the upper cover 39c and the lower cover 39d. Then, the recesses 57a and 57b of the left and right covers 39a and 39b are inserted from left and right to left and right ends of the front surface plate 33a, respectively, to form the door frame 35. The dimensions of the inner widths of the concave portions 57a and 57b are set to be substantially the same as the thickness dimension of the front surface plate 33a. Even if the door frame 35 has such a structure, both the front surface plate 33a formed of a steel plate material and the front surface plate 33b formed of glass can be fixed to the same door frame 35.
Fixing method of appearance panel
Next, a method of fixing the front surface plate 33 to the door frame 35 will be described.
The case where the front surface plate 33 is formed using a steel plate material will be described.
The front surface plate 33a is pressed to the front surface of the door frame 35 formed by assembling the left cover 39a, the right cover 39b, the upper cover 39c, and the lower cover 39d. The left cover 39a and the right cover 39b are formed with a concave portion 57a and a concave portion 57b, respectively, having the structure shown in fig. 7. The upper cover 39c and the lower cover 39d are formed with a recess 57c and a recess 57d, respectively, having the structure shown in fig. 5.
The end 38d of the front surface plate 33a bent toward the rear surface side is inserted into the recess 57d of the lower cover 39d so as to contact the bottom surface of the recess 57d. The end portions 38a, 38b, and 38c of the front surface plate 33a, which are bent to the back surface side, are also inserted into the concave portions 57a, 57b, and 57c, respectively. Thus, the front surface plate 33a is attached to the door frame 35.
Next, a case where the front surface plate 33 is formed using glass will be described.
The double-sided tape 34 is attached to the adhesive surfaces 60a, 60b, 60c, and 60d of the door frame 35 formed by assembling the left cover 39a, the right cover 39b, the upper cover 39c, and the lower cover 39d, or a hot melt adhesive (not shown) is applied thereto, so that the front surface plate 33b is adhered thereto. At this time, the lower side surface of the front surface plate 33b is supported by the support surface 55d of the lower cover 39d. In this way, the front surface plate 33b is fixed to the adhesive surface 60d. At this time, a part of the hot melt adhesive extruded by the pressing at the time of bonding of the front surface plate 33b flows into the concave portion 57d provided on the outer side of the bonding surface 60d. With this structure, the hot melt adhesive is prevented from entering the gap between the glass surface and the support portion and leaking out of the front surface of the refrigerator door, and thus the quality of the aesthetic appearance of the refrigerator door is improved.
In the present embodiment, the material of the front surface plate 33 is exemplified by steel plate and glass, but the material of the front surface plate 33 is not limited thereto, and may be, for example, a metal plate or a resin. If the shape of the front surface plate 33 with respect to the door frame 35 can be made similar to fig. 5 and 6, the material of the front surface plate 33 can be changed to another material such as a metal plate or a resin.
In the door frame of the conventional refrigerator door, when the front surface plate formed by glass is mounted, the protruding part protruding from the supporting part of the front surface plate to the front of the door frame covers a part of the door frame, thereby inhibiting the front surface plate from falling off from the door frame. In the refrigerator compartment right door 14 of the present embodiment, the adhesive surface 60d of the lower cover 39d and the front surface plate 33b are fixed by the double-sided tape 34 or the hot melt adhesive, and the front surface plate 33b is supported by the support surface 55d, whereby the front surface plate 33b is fixed to the door frame 35. By forming such a structure, the protruding portion provided on the front surface of the front surface plate 33b is not required, and therefore, the area of the front surface plate 33b can be enlarged, and the appearance of the right door 14 of the refrigerator can be improved. In addition, in the conventional refrigerator door, when foreign matter such as dust is deposited on the boundary portion between the front surface plate and the protruding portion, it is difficult to remove the foreign matter, which is disadvantageous in terms of cleaning performance. In the refrigerator right door 14 of the present embodiment, since the door frame 35 is not provided with the protruding portion on the front surface of the front surface plate 33b, foreign matter such as dust can be easily removed, and the cleanliness of the refrigerator door can be improved. The same applies to the refrigerating chamber left door 13.
Embodiment 2 >
Embodiment 2 of the present invention will be described. The front view and the cross-sectional view of the refrigerator in embodiment 2, and the structures of the left door and the right door of the refrigerator are common to those of fig. 1, 2 and 3 in embodiment 1.
The structure of the door frame 203 according to embodiment 2 will be described with reference to fig. 10 and 11. In embodiment 2, the front rib provided in the lower cover main body 205 is constituted by two members.
Fig. 10 is a vertical cross-sectional view of the lower cover 204 in embodiment 2 in the depth direction. The lower cover 204 has a lower cover main body 205 as in embodiment 1. The lower cover 204 has a stepped portion 206 formed continuously from the lower cover body 205 and extending upward on the upper surface of the lower cover body 205.
In the present embodiment, as shown in fig. 10, the step 206 has an L-shaped step 207 formed from the front surface of the step 206 to the upper surface of the step 206 and recessed rearward. The fixing member 208 is bonded to the step portion so as to contact both surfaces of the step 207. The fixing member 208 has an L-shape including a side 209 extending forward from the step 206 and a side 210 extending upward when attached to the step 206. The front rib 211 is formed by the step 206 and the fixing member 208. The front surface of the side of the fixing member 208 extending upward serves as an adhesive surface 212. The portion of the lower cover body 205 that is forward of the adhesive surface 212 is a support portion 213. The step 206 and the fixing member 208 are bonded by double-sided tape or screw fixation. Even with such a structure, the same effects as those of embodiment 1 can be obtained. A recess 214 is formed between the fixing member 208 and the lower cover main body 205.
In embodiment 1, the lower cover 39d has a lower cover main body 40d, and a recess 57d is formed between the lower cover main body 40d and a front rib 41d formed continuously from the lower cover main body 40d. In order to form the lower cover of such a configuration, an undercut process to form the concave portion 57d is required.
In the present embodiment, the front rib 211 is formed by the step 206 and the fixing member 208, and the recess 214 is formed between the lower cover main body 205 and the front rib 211. By forming such a structure, undercut processing is not required, and thus the cost at the time of molding can be reduced compared with the lower cover of embodiment 1.
The structure of the front rib formed by the two members, i.e., the step 206 and the fixing member 208, is not limited to fig. 10, and may be, for example, a structure in which the fixing member 208 has a rectangular cross section as shown in fig. 11, and the entire rear surface of the fixing member 208 is bonded to the step 206 to form the front rib 211. Even with such a configuration, the undercut process for forming the recess 214 is not required in molding the lower cover 204, and the cost in molding can be reduced compared to the lower cover of embodiment 1.
Embodiment 3 >
Embodiment 3 of the present invention will be described. The refrigerator according to embodiment 3 is common to the configurations of the left door and the right door of the refrigerator in embodiment 1 in front view and in cross-section, as well as to fig. 1, 2 and 3. In embodiment 3, an opening 305 is formed in a front rib 304 of a lower cover main body 303 provided in a right door of a refrigerator.
In the present embodiment, as shown in fig. 12, the front rib 304 provided in the lower cover main body 303 has an opening 305 penetrating to the back surface on the adhesion surface 306. The other structures are the same as those of fig. 5 and 6.
With such a structure, when the back plate 36 is attached to the door frame 35 and the foamed polyurethane is injected into the door frame 35, and then the front surface plate 33a is attached to the door frame 35, the foamed polyurethane flows into the space between the front surface plate 33a and the front side rib 304 through the opening 305, so that the foamed polyurethane is more easily filled into the space between the front surface plate 33a and the front side rib 304 than in the case where the opening 305 is not provided. Therefore, compared to the case where the opening 305 is not provided on the front surface of the front rib 304, a void caused by injection leakage of the foamed polyurethane is less likely to be formed in the space between the front surface plate 33a and the front rib 304, and in the case where the front surface plate 33a is formed using a steel plate material, the effect of pressing the end portion of the front surface plate 33a to the support portion side by the foamed polyurethane is higher when the front surface plate 33a is attached to the door frame 35 than in the case where the opening 305 is not provided.
In addition, in the case where the front surface plate 33 is formed of glass, the front surface plate 33b is attached to the adhesive surface 306 of the lower cover via a hot melt adhesive. At this time, a part of the hot melt adhesive flows into the opening 305 formed in the adhesive surface 306. Therefore, compared with the case where the opening 305 is not provided in the adhesive surface 306, the hot melt adhesive can be prevented from flowing out from between the front surface plate 33b and the supporting portion and leaking out to the front surface of the refrigerator door, and therefore quality relating to the appearance at the time of manufacturing the refrigerator door is improved.
The embodiments are appropriately combined, modified, and omitted, and are included in the scope of the technical ideas shown in the embodiments.
Description of the reference numerals
Refrigerator; 2. a box; door frame; left cover; right cover; upper cover; lower cover; front side rib; lower cover body; right door of refrigerating chamber; back panel; front surface plate; front surface plate; front surface plate; adhesive surface; 55d. Recess.

Claims (7)

1. A refrigerator, comprising: a refrigerator main body having a storage chamber inside; and a refrigerator door which opens and closes the storage chamber of the refrigerator main body,
the refrigerator is characterized in that,
the refrigerator door has a door frame, a back panel, and a front surface panel,
the door frame is provided with an upper cover, a lower cover, a right cover and a left cover,
the lower cover has: a plate-shaped cover body forming the lower surface of the refrigerator door, a front side rib arranged on the upper surface of the cover body and extending upwards, and a concave part for clamping the front surface plate between the cover body and the front side rib,
the front side rib has an adhesive surface on a front surface for adhering the front surface plate,
the front side rib is provided at a position rearward of the front end of the cover main body by a distance that enables the cover main body to support the front surface plate,
the cover main body has a support surface on an upper surface in front of the front side rib,
in the case where the front surface plate is formed of a steel plate material, the front surface plate has an end portion bent to the back surface side at the lower side, the end portion is inserted into the recess portion, and the front surface plate is separated from the adhesive surface, a space formed by the separation between the front surface plate and the adhesive surface is filled with foamed polyurethane,
when the front surface plate is formed of a glass plate, a lower side surface of the front surface plate is supported by the support surface, and a back surface of the front surface plate is bonded to the bonding surface.
2. The refrigerator according to claim 1, wherein,
the front rib is formed of two parts.
3. The refrigerator according to claim 1, wherein,
the front rib has an opening penetrating to a back surface of the front rib at the adhesive surface.
4. A refrigerator according to any one of claims 1 to 3, wherein,
a cushioning material is disposed between the lower side surface of the front surface plate and the support surface.
5. A refrigerator according to any one of claims 1 to 3, wherein,
a sealing material is disposed between the lower side surface of the front surface plate and the support surface.
6. A refrigerator according to any one of claims 1 to 3, wherein,
the right cover has: a right cover body forming a right side surface of the door frame, a corner portion continuously formed from the right cover body and provided in front of the right cover body, and a front side rib of the right cover extending in a left direction from a left side surface of the corner portion,
the front side rib of the right cover is provided at a position rearward of the front end of the corner by a distance that enables the right cover to support the glass sheet,
the front side rib of the right cover has an adhesive surface at a front surface for adhering the right cover of the front surface plate,
the recess of the right cover is formed at the corner in a direction of being recessed rightward in a position of the right cover in front of the bonding surface,
in the case where the front surface plate is formed of the steel plate material, a right end portion of the front surface plate is inserted into the recess portion of the right cover.
7. A refrigerator, comprising: a refrigerator main body having a storage chamber inside; and a refrigerator door which opens and closes the storage chamber of the refrigerator main body,
the refrigerator is characterized in that,
the refrigerator door has a door frame, a back panel, and a front surface panel,
the door frame is provided with an upper cover, a lower cover, a right cover and a left cover,
the right cover has: a right cover body forming a right side surface of the door frame, a corner portion continuously formed from the right cover body and provided in front of the right cover body, and a front side rib extending from a left side surface of the corner portion in a left direction,
the right cover has a recess for sandwiching the front surface plate between the corner and the front side rib,
the front side rib has an adhesive surface on a front surface for adhering the front surface plate,
the front side rib is provided at a position rearward of the front surface of the corner portion,
the corner portion has a support portion for protecting the front surface plate at a position forward of the front rib,
in the case where the front surface plate is formed of a steel plate material, the front surface plate has an end portion bent to the rear surface side on the right, the end portion is inserted into the recess portion, and the front surface plate is separated from the adhesive surface, a space formed by the separation between the front surface plate and the adhesive surface is filled with foamed polyurethane,
when the front surface plate is formed of glass, the support portion covers the right side surface of the front surface plate, and the back surface of the front surface plate is bonded to the bonding surface.
CN202080098996.8A 2020-03-30 2020-03-30 Refrigerator with a refrigerator body Active CN115349074B (en)

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WO2021199108A1 (en) 2021-10-07
AU2020439808B2 (en) 2023-11-09
JP7332036B2 (en) 2023-08-23
CN115349074A (en) 2022-11-15
JPWO2021199108A1 (en) 2021-10-07
TW202136694A (en) 2021-10-01
TWI783399B (en) 2022-11-11

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