WO2017010849A1 - 가전제품용 도어, 가전제품 및 이의 제조방법 - Google Patents
가전제품용 도어, 가전제품 및 이의 제조방법 Download PDFInfo
- Publication number
- WO2017010849A1 WO2017010849A1 PCT/KR2016/007764 KR2016007764W WO2017010849A1 WO 2017010849 A1 WO2017010849 A1 WO 2017010849A1 KR 2016007764 W KR2016007764 W KR 2016007764W WO 2017010849 A1 WO2017010849 A1 WO 2017010849A1
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- WO
- WIPO (PCT)
- Prior art keywords
- frame
- door
- assembly
- foam
- panel
- Prior art date
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Classifications
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47F—SPECIAL FURNITURE, FITTINGS, OR ACCESSORIES FOR SHOPS, STOREHOUSES, BARS, RESTAURANTS OR THE LIKE; PAYING COUNTERS
- A47F3/00—Show cases or show cabinets
- A47F3/04—Show cases or show cabinets air-conditioned, refrigerated
- A47F3/0404—Cases or cabinets of the closed type
- A47F3/0426—Details
- A47F3/0434—Glass or transparent panels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/34—Auxiliary operations
- B29C44/58—Moulds
- B29C44/588—Moulds with means for venting, e.g. releasing foaming gas
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D23/00—General constructional features
- F25D23/02—Doors; Covers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D23/00—General constructional features
- F25D23/02—Doors; Covers
- F25D23/025—Secondary closures
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D23/00—General constructional features
- F25D23/02—Doors; Covers
- F25D23/028—Details
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D23/00—General constructional features
- F25D23/06—Walls
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D23/00—General constructional features
- F25D23/06—Walls
- F25D23/065—Details
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
- B29C44/12—Incorporating or moulding on preformed parts, e.g. inserts or reinforcements
- B29C44/18—Filling preformed cavities
- B29C44/188—Sealing off parts of the cavities
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2075/00—Use of PU, i.e. polyureas or polyurethanes or derivatives thereof, as moulding material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/762—Household appliances
- B29L2031/7622—Refrigerators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2201/00—Insulation
- F25D2201/10—Insulation with respect to heat
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2323/00—General constructional features not provided for in other groups of this subclass
- F25D2323/02—Details of doors or covers not otherwise covered
- F25D2323/023—Door in door constructions
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2400/00—General features of, or devices for refrigerators, cold rooms, ice-boxes, or for cooling or freezing apparatus not covered by any other subclass
- F25D2400/36—Visual displays
- F25D2400/361—Interactive visual displays
Definitions
- the present invention relates to a door for a home appliance, a home appliance and a manufacturing method thereof.
- a refrigerator is a device for freezing or refrigerating a storage product by using a refrigeration cycle consisting of a compressor, a condenser, an expansion valve, and an evaporator to maintain a temperature of a storage area of the refrigerator at a predetermined temperature. Therefore, the refrigerator includes a storage area, for example, a freezer compartment and a refrigerating compartment, and the types of refrigerators may be classified according to the positions of the freezer compartment and the refrigerating compartment.
- a top mount type in which a freezer compartment is arranged at the top of the refrigerator compartment
- a bottom freezer type in which the freezer compartment is arranged at the bottom of the refrigerator compartment
- a freezer compartment and a refrigerating compartment are arranged left and right by a partition wall. It can be divided into the divided side by side type (Side By Side Type) and the like.
- the freezer compartment and the refrigerating compartment are provided inside a cabinet forming the outer shape of the refrigerator, and may be selectively opened and closed by the freezer compartment door and the refrigerating compartment door, respectively.
- Some refrigerators include a panel for inputting a user provided on the front of a door of the refrigerator, and the panel may be provided for a user to apply a touch input. This may be referred to as a touch input panel.
- the user may select or change the functions of various refrigerators through the touch input panel.
- the door is made of glass or glass so that the inside of the refrigerator can be seen without opening the door.
- the freezer door and the freezer door of the home refrigerator are opaque, the freezer door and the freezer door may be opened to view the inside of the refrigerator.
- Some home refrigerators allow users to see inside the refrigerator without opening the door. Therefore, it is possible to prevent the loss of cold air by frequently opening and closing the door.
- the door is generally composed of a panel assembly capable of seeing the inside of the refrigerator and a frame assembly supporting the panel assembly.
- the freezer compartment and the refrigerating compartment is provided inside the cabinet forming the appearance of the refrigerator, and is selectively opened and closed by the freezer compartment door and the refrigerating compartment door (hereinafter collectively referred to as "refrigerator door” or “door” for convenience). Since the refrigerating compartment or the freezing compartment is selectively sealed by the door for the refrigerator, the door should have a predetermined heat insulating performance. To this end, it is common to make a predetermined space with a frame structure forming the exterior of the door with a predetermined strength, and to make a door by foam-filling an insulation such as polyurethane in the space.
- the foam space defined by the frame structure is approximately the size of the door, that is, "up and down width x left and right width x depth (door front and rear direction) of the door", and the space It is a foam space and a foam flow path to be filled.
- the size of the door becomes the foaming space, and the foaming space becomes the foaming flow path, so that the foaming flow path is relatively large.
- the foam inlet is located approximately in the center of the rear side of the door (exactly the frame structure).
- the door is generally composed of a panel assembly made of glass that can see through the inside of the refrigerator and a frame assembly supporting the panel assembly.
- the door is generally composed of a panel assembly having a touch input display and a frame assembly supporting the panel assembly.
- the foam space and the foam flow path become a space defined by the outer edges of the frame assembly and the panel assembly except for the panel assembly in the entire door. Therefore, compared with the general door, the door is relatively small in the foam space and the foam passage, there is a fear that problems occur during the foaming of the heat insulating material. That is, when foaming of a heat insulating material, foaming resistance is large and there exists a possibility that a heat insulating material may not be completely filled in a foam space. In addition, there is a fear that the insulating material in the form of a foam liquid swells into the foam injection hole or the panel assembly, or the foam liquid may flow back to the foam injection hole. Therefore, there is a demand for a solution to this problem.
- the problem of the door may be the same or similar to the door of a home appliance that requires insulation as well as the door for the refrigerator.
- the present invention has been made to solve the above problems, and an object of the present invention is to provide a refrigerator door, a refrigerator, and a method of manufacturing the same, which can improve foaming performance of a heat insulating material at the time of manufacturing the door.
- the invention is a panel assembly;
- a frame assembly including a frame assembly defining a predetermined space having an opening, and having an edge of the panel assembly connected to the opening to form a foam space accommodating the insulation by the predetermined space of the frame assembly and the edge of the panel assembly.
- the door at least one of the upper surface, the lower surface, the left side and the right end of the frame assembly is provided with a door for a refrigerator, characterized in that the foam injection hole is injected.
- the frame assembly includes a rear frame located at the rear of the door; It is preferable to include a side frame to make the predetermined space connected to the rear frame.
- the panel assembly includes two or more insulating glass and a spacer provided between the edge of the insulating glass, it is preferable that the heating portion is provided in the adjacent portion of the spacer.
- the depth of the frame assembly is substantially the same as the depth of the panel assembly.
- the frame assembly may have a width of 35 mm or less.
- the foam injection port is preferably provided at both ends of the frame assembly.
- the foam injection port is preferably provided at at least one of the ends of the upper and lower surfaces of the frame assembly.
- the foam injection hole is more preferably provided at the end of the lower surface of the frame assembly.
- the foam injection hole is more preferably provided at both ends of the lower surface of the frame assembly.
- the foam inlet is provided in the longitudinal direction of the frame assembly.
- the present invention provides a cabinet for forming an appearance of a refrigerator; A main door rotatably coupled to the cabinet; A refrigerator comprising a subdoor rotatably coupled to the main door, the sub door comprising: a panel assembly; A frame assembly defining a predetermined space having an opening, the frame assembly being connected to the opening of the panel assembly to form a foam space accommodating the insulation by the predetermined space of the frame assembly and the edge of the panel assembly; At least one of the upper surface, the lower surface, the left side and the right end of the frame assembly provides a door for a refrigerator, characterized in that the foam injection hole is provided with the insulation is injected.
- the present invention is a refrigerator door comprising a support portion having an insulating space therein and surrounding the open central portion, and a heat insulating material accommodated in the insulating space, the upper and lower surfaces of the support portion And, at least one end of the left side and the right side provides a door for a refrigerator, characterized in that the foam injection hole is provided with the insulation is injected.
- the present invention includes a temporary assembly step of pre-assembling the support portion having a heat insulating space surrounding the opened central portion to accommodate the heat insulating material therein; It provides a method of manufacturing a door for a refrigerator comprising a foaming step of injecting the insulation in the longitudinal direction of the support.
- the foaming step it is preferable to inject the heat insulating material in the long direction of the longitudinal direction of the support. In the foaming step, it is more preferable to foam the insulation by standing the support vertically. At least one of the upper, lower, left and right ends of the frame assembly may be provided with a foam injection hole into which the insulation is injected. Meanwhile, in the preliminary assembling step, the panel assembly may be preassembled to the central portion.
- the present invention provides a refrigerator door including an enclosing support portion of an open central portion and a heat insulating material contained in the support portion, wherein the heat insulating material is formed in a lengthwise direction of the support portion.
- a door for a refrigerator characterized in that the foam injection hole is provided is injected.
- the foam inlet is provided at at least one end of the upper, lower, left and right sides of the support. More preferably, the support portion is provided at both ends. Meanwhile, the panel assembly may be further provided at the central portion.
- a panel assembly In order to achieve the above object, according to an embodiment of the present invention, a panel assembly; And a frame assembly having an opening, wherein an edge of the panel assembly is connected to the opening to support the panel assembly and to create a foam space for receiving insulation between the frame assembly and the edge of the panel assembly. Doors for home appliances and home appliances including the same may be provided at at least one of upper and lower surfaces of the assembly, and end portions of the left and right surfaces thereof.
- the frame assembly includes a rear frame located at the rear of the door; It may include a side frame connected to the rear frame to create the foam space.
- the panel assembly may include a spacer provided between two or more glass panels and an edge of the glass panels, and a heat generating part may be provided at an adjacent portion of the spacer.
- the depth of the frame assembly may be substantially the same as the depth of the panel assembly.
- the frame assembly may have a width of 35 mm or less.
- the foam injection hole may be provided at both ends of the frame assembly.
- the foam injection hole is preferably provided at at least one of the upper and lower ends of the frame assembly.
- the width of the upper and lower surfaces of the frame assembly is preferably smaller than the width of the left and right surfaces of the frame assembly. That is, in the state in which the door is positioned vertically, the shape of the door may be formed in a rectangular shape having a height greater than the left and right widths.
- the foam inlet is preferably provided at the end of the lower surface of the frame assembly.
- the foam injection hole is preferably provided at both ends of the lower surface of the frame assembly.
- the foam inlet is provided in the longitudinal direction of the frame assembly.
- the foaming direction through the foam injection hole be a vertical direction.
- the cabinet forming the appearance of the refrigerator; A main door rotatably coupled to the cabinet; and a sub door rotatably coupled to the main door, wherein the sub door has a panel assembly and an opening, and an edge of the panel assembly is formed in the opening.
- a frame assembly connected to support the panel assembly and to form a foam space for accommodating insulation between the frame assembly and the edge of the panel assembly, wherein one of the upper, lower, left and right ends of the frame assembly is provided.
- a refrigerator may be provided which is provided with a foam injection hole into which the insulation is injected at least one place.
- the frame assembly surrounding the edge of the panel assembly to support the panel assembly, and forming an insulating space between the panel assembly; And at least one of the upper surface, the lower surface, the left side and the right side of the frame assembly may be provided with a door for a home appliance comprising a foam inlet for injecting the insulating material in the longitudinal direction of the frame assembly. .
- the panel assembly is fixed to the frame assembly by the foaming pressure caused by the foaming of the heat insulating material.
- the foam injection hole is preferably provided to inject the blowing agent in the longer longitudinal direction of the transverse length or longitudinal length of the frame assembly.
- the foam injection hole is preferably formed such that the foaming direction of the blowing agent is substantially the same as the gravity direction.
- a panel assembly including a front panel and a rear panel;
- a frame assembly including a rear frame connected to the rear panel and a side frame connecting the rear frame and the front panel;
- An insulation space formed between the frame assembly and the panel assembly to accommodate insulation;
- Expansion of the heat insulator which is provided in at least one of the upper surface, the lower surface, the left side and the right side of the frame assembly, the foam inlet is provided to foam in the longitudinal direction of the frame assembly,
- a door for a home appliance may be provided, wherein a portion of the rear frame is inserted into the side frame so that the rear frame and the side frame are coupled so that the coupling force between the rear frame and the side frame is increased by pressure.
- the side frame may include a heat bridge extending radially inward along the rear surface of the front panel, and the heat bridge is formed to be parallel to the rear surface of the front panel.
- a heating wire is provided between the heat bridge and the rear surface of the front panel to closely contact the front panel.
- the hot wire is provided to be in close contact with the front panel through a metal sheet (block) is blocked the inflow of the heat insulating material by the hot wire, the position of the hot wire is fixed by the pressure of the heat insulating material applied to the metal sheet.
- the center portion of the panel assembly corresponding to the radially inner region of the frame assembly may be a see-through area of the door or a touch area to which a user's touch input is applied.
- a panel assembly having a rectangular shape longer than the left and right width;
- a frame assembly surrounding the edge of the panel assembly to support the panel assembly, forming a foam space therebetween, and including an upper frame, a lower frame, and side frames on both sides;
- it can provide a home appliance door and a home appliance comprising the same, characterized in that it comprises a foam injection hole is provided to inject the heat insulating material into the foam space in each of the left and right ends of the lower frame.
- One side of the frame assembly is opened and the opened portion is blocked by the panel assembly.
- the frame assembly surrounds the panel assembly along the edge of the panel assembly.
- a foaming space in which a blowing agent is filled may be formed between the frame assembly and the panel assembly.
- the combination of both can be performed by the filled blowing agent.
- the bonding between the two can be completed by foaming after pre-assembly between the two.
- the foam injection hole may include a first injection hole provided directly below the side frame and a second injection hole provided to be biased into the door from directly below the side frame. Both the first inlet and the second inlet are preferably formed in the upper frame or the lower frame forming the upper or lower surface of the frame assembly.
- injection device manufacture and injection can be very easy since injection can be performed in one direction.
- the first inlet is provided so that the foaming is performed in the same direction as the longitudinal direction of the first side frame having a larger cross-sectional area of the foam space among the side frames on both sides, and the foamed liquid injected through the second inlet by the lower frame.
- the second inlet is the door inside in the longitudinal direction of the second side frame in which the cross-sectional area of the foam space of the side frames on both sides is smaller It is preferable to be biased.
- the foam liquid injected through the first injection hole is initially flowed vertically downward and then horizontally.
- the foamed liquid injected through the second inlet may initially flow horizontally and then vertically.
- the frame assembly may support the panel assembly at the rear of the panel assembly, and may include a rear frame that forms the foam space between the panel assembly together with the upper frame, the lower frame, and side frames at both sides thereof.
- the rear frame is formed with a vent hole through which air in the foam space is discharged to the outside.
- the rear frame is located perpendicular to the flow direction of the foam liquid. That is, the vent hole in the rear frame located at the rear of the panel assembly is preferably formed so that air is discharged to the rear of the door. Therefore, air other than the foaming liquid can be discharged more smoothly.
- the rear frame may be formed with a gasket mounting groove for mounting a gasket.
- a vent hole may be formed in the gasket mounting groove so that air in the foam space is discharged to the outside.
- the gasket mounting groove is mounted to cover the gasket mounting groove. Therefore, the vent hole formed in the gasket mounting groove is covered by the gasket. Therefore, the sheep appearance of the door is not compromised since the vent hole is not exposed to the outside.
- the foam injection hole may be covered after foaming.
- a cover coupled to the lower frame may be provided. That is, when foaming is completed, the cover may be combined with the lower frame to cover the foam injection hole.
- the present invention it is possible to reduce the foaming resistance during foaming of the heat insulating material to the pre-assembled door, it is possible to prevent the heat insulating material is not filled in the frame assembly.
- the present invention it is possible to reduce the foaming resistance during foaming of the heat insulating material to the prefabricated door, it is possible to prevent the heat insulating material, which is a foaming liquid, from leaking to the foam inlet or panel assembly. In addition, it is possible to prevent the heat insulating material, which is a foam liquid, from flowing back to the foam injection hole.
- the heat insulating material which is the foam liquid by gravity, can more efficiently flow the foaming flow path, thereby improving the foaming performance.
- FIG. 1 is a perspective view showing an embodiment of a refrigerator according to an embodiment of the present invention.
- FIG. 2 is a perspective view schematically showing the door of FIG. 1, illustrating a principle of an embodiment of the present invention
- FIG. 3 is a cross-sectional view taken along line II of FIG. 1;
- FIG. 4 is a preferred exploded perspective view of the door of FIG. 1;
- FIG. 5 is a perspective view showing the flow of the foam when the foam is injected into the door of FIG.
- Figure 6 is a perspective view showing the flow direction of the foam injection hole and the foam liquid in the door according to an embodiment of the present invention.
- FIG. 7 is a perspective view illustrating an arrangement of a vent hole in the door illustrated in FIG. 6.
- a bottom freezer type refrigerator will be described as an example.
- the present invention is not limited to a bottom freezer type refrigerator, but can be applied to a top mount type refrigerator, a side by side type refrigerator, and the like.
- a refrigerator having a refrigerator compartment door comprising two main doors and two subdoors will be described as an example.
- the present invention is not limited to this, it is possible to apply to the refrigerator consisting of one door of the refrigerator compartment. That is, the present invention can be applied to all refrigerators provided with the panel assembly in the door.
- the upper part of the cabinet 1 is provided with a refrigerating chamber, and the lower part is provided with a freezing chamber.
- doors 3, 5, 9, and 11 are rotatably installed at upper and lower portions of the cabinet 1, respectively.
- two doors 3, 5, 9, and 11 for opening and closing the refrigerating chamber and the freezing chamber, respectively, are illustrated.
- the present embodiment is not limited thereto, and one door may be used.
- the main door 5 and the subdoor 7 are shown as a right door for a refrigerating room in this embodiment, this embodiment is not limited to this, It is also possible to use one door as a right door for a refrigerating room.
- the refrigerating compartment right door comprises a main door 5 rotatably coupled to the cabinet 1 and a subdoor 7 rotatably coupled to the main door 5.
- the main door 5 is provided with another auxiliary storage space, such as a basket, so that the user can access the storage stored in the auxiliary storage space by only opening the subdoor 7 without opening the main door 5.
- the subdoor 7 includes a panel assembly 10 which can be seen from the outside of the refrigerator, and a frame assembly 20 supporting the panel assembly 10.
- the panel assembly 10 has a predetermined heat insulating performance using a heat insulating glass or the like
- the frame assembly 20 also preferably has a predetermined heat insulating performance.
- the connection part of the panel assembly 10 and the frame assembly 20 may include a heating unit ( 30) is preferably provided. (The detailed structure of the panel assembly, the frame assembly, and the heat generating portion will be described later.)
- FIG. 2 schematically shows a door 7 having a panel assembly 10 to illustrate the principles of the invention, and also shows the rear (back) of the door 7 as the top.
- the door 7 includes a panel assembly 10, a frame assembly 20 for supporting the panel assembly 10, and a heat insulating material 60 foamed in a foam space defined by the frame assembly. It is configured to include.
- the panel assembly 10 is not limited in shape, but preferably has a substantially rectangular shape corresponding to the shape of the door.
- the frame assembly 20 preferably supports the edge 11a of the panel assembly 10.
- the frame assembly 20 defines a foam space having an opening 21, and the panel assembly 10 is preferably connected to the opening 21 (see FIG. 3).
- the foam space is approximately the size of the door, that is, "the right and left width (DW1) x top and bottom width (DW2) x depth (DH) of the door", and the foam space is approximately It becomes a foam flow path.
- the space made by the frame assembly 10 becomes the foam space, and the foam space has a space excluding the size of the panel assembly 10 from the size of the door 7. do.
- the size of the panel assembly 10 is approximately "left and right width GW1 x top and bottom width GW2 x depth GH of the panel assembly".
- the frame assembly 10 since the frame assembly 10 is connected to the edge 11a of the panel assembly 10, the frame assembly 10 is formed between the edge 11a of the panel assembly 10 and the edge 20a of the frame assembly 20.
- the space becomes a foaming space. Therefore, the left and right width FW1 of the frame assembly 20 is the difference between the left and right width DW1 of the door 7 and the left and right width GW1 of the panel assembly 10, and the top and bottom width FW2 of the frame assembly 20 is The difference between the upper and lower width DW2 of the door 7 and the upper and lower width GW2 of the panel assembly 10 is obtained.
- the depth of the frame assembly 20 may be different from the depth (DH) of the door (7) is preferably configured approximately the same.
- the depth of the frame assembly 20 is preferably equal to or greater than the depth GH of the panel assembly 10.
- the size of the door 7 is predetermined according to the refrigerator, and the size of the panel assembly 10 is preferably as large as possible. This is because the larger the size of the panel assembly 10 is, the easier it is for a user to see the inside of the refrigerator through the panel assembly 10. Therefore, as long as other required performances, such as strength and heat insulation for the door, are satisfied, the size of the panel assembly 10, in particular, the left and right width GW1 and the top and bottom width GW2, are the right and left width DW1 and the top and bottom width DW2 of the door. Close to, it is preferable that the left and right widths FW1 and the upper and lower widths FW2 of the frame assembly 20 are small.
- the difference is relatively small.
- the interval between the edge 11a of the panel assembly 10 and the edge 20a of the frame assembly 20, that is, the widths FW1 and FW2 of the frame assembly 20 may be relatively narrow.
- the depth DH and the widths FW1 and FW2 of the frame assembly 20 may be about 35 mm or less.
- the foam space in which the heat insulating material 60 is foamed is a space mainly made by the frame assembly 20.
- the widths FW1 and FW2 of the frame assembly 20 are relatively narrow due to the characteristics of the frame assembly 20, and thus, in the case of the panel assembly door 7, the foam space and the foam passage are Relatively small compared to doors without panel assembly. Therefore, a foam injection hole (for example, A1) is provided on the rear surface of the conventional method, that is, the frame assembly 20, and if the insulation 60 is injected through the foam injection hole A1, there may be a problem in foaming performance.
- the foaming interval of the door 7 according to the present invention is narrower than the foaming interval allowable in the conventional foaming method, and thus, the foaming resistance becomes large, which may cause problems in foaming performance.
- the foam injection holes B1, B2, B3, B4, and B5 are located at at least one predetermined position of the left, right, top, and bottom surfaces of the frame assembly 20 instead of the front and rear surfaces thereof. Do.
- the foam injection holes B1, B2, B3, B4, and B5 of the refrigerator door 7 according to the present embodiment will be described in detail as follows.
- the foam injection holes B1 and B2 are located at at least one of the left, right, top and bottom surfaces of the frame assembly 20 (hereinafter referred to as "side” for convenience, except when it is necessary to collectively distinguish them in general).
- (B3, B4, B5) is preferably provided. (On FIG. 2, only the left and bottom foam injection holes are shown for convenience.)
- the foam injection holes at the ends of the top, bottom, left and right surfaces of the frame assembly 20) are shown. More preferably, B2, B3, B4 and B5) are provided.
- the foam injection holes B2, B3, B4, B5 are located in the end side rather than the center part of the frame assembly 20.
- the foam injection holes (B2, B3, B4, B5) may be located on the side of the frame assembly 20, that is, left, right, top and bottom ends.
- the foam injection holes (B2, B3) (only the left foam injection hole is shown in Figure 2) located on the right side and left side of the frame assembly 20, it is possible to foam the insulation without relatively foam resistance, but foaming After completion, the foam injection holes B2 and B3 are exposed, resulting in poor taste. This is because the right side and the left side of the frame assembly 20 constitute the exterior of the door 7, and the foam injection holes B2 and B3 can be seen by the user when the door 7 is opened and closed.
- the upper and lower ends of the right side or the left side of the frame assembly 20 is a portion to which a hinge structure (not shown) that connects the door 7 to the cabinet of the refrigerator so as to be opened and closed is normally coupled. Therefore, if the foam injection holes (B2, B3) is located at the ends of the right side and left side of the frame assembly 20, the hinge structure can be foamed resistance when the insulation is foamed. Accordingly, it is more preferable that the foam injection holes B4 and B5 (only the lower foam injection holes are shown in FIG. 2) are provided at the ends of the upper and lower surfaces than the ends of the left and right surfaces of the frame assembly 20.
- the foam injection holes (B4, B5) are provided at the end of the upper surface and the lower surface of the frame assembly 20, there is no great force in the foaming of the heat insulating material.
- the end of the upper surface of the frame assembly 20 is a position where components such as sensors, PCBs, magnets and the like are usually installed. Therefore, when the foam injection hole (not shown) is located at the end of the upper surface of the frame assembly 20, the foam injection hole should be selected to avoid these parts, and the parts may be foam resistance.
- the foam injection hole located at the end of the upper surface of the frame assembly 20 may be exposed to the outside when the door is opened.
- the foam injection holes B4 and B5 are located at the end of the lower surface of the frame assembly 20.
- one foam injection hole (B4 or B5) may be provided at one end of the lower surface of the frame assembly 20, and two foam injection holes (B4, B5), one at each end may be provided.
- the foam inlet B4 when the indentation 330 serving as a handle is provided at one side of the frame assembly 20 as shown in the embodiment shown in FIG. 3, it is preferable to select the foam inlet B4 at the opposite end. Because, when selecting the foam inlet (B5) of the portion provided with the indentation 330 to serve as a handle, the foam inlet (B5) easily overlaps the edge of the frame assembly 20 and a predetermined portion.
- the foam inlet (B4) of the portion where the indentation portion 330 is not formed the foam inlet (B4) does not overlap with the frame assembly 20, it is possible to prevent the backflow of the foam liquid (Fig. 5).
- the foam inlet can be selected regardless of the left and right sides.
- the foam injection holes B4 and B5 may be provided at both ends of the frame assembly 20, respectively. Even in this case, as shown in the embodiment shown in FIG. 3, when the indentation portion 330 serving as a handle is provided at one side of the frame assembly 20, the foam inlet B5 of the portion where the indentation portion 330 is provided. ), The foamed liquid may flow back.
- the width of the frame assembly 20, that is, the lower surface portion provided with the foam inlets B4 and B5 is preferably larger than the width of the left surface portion, the right surface portion, and the upper surface portion. When the left, right and upper surface portions of the frame assembly 20 have a width smaller than 35 mm, the width of the lower surface portion is preferably larger than 35 mm.
- the width of the lower surface portion is preferably about 45 mm.
- the foam liquid introduced into the foam inlet B5 can be led to a portion having a relatively large width and a small foam resistance, leakage of the foam liquid can be prevented.
- the subdoor 7 described in the present embodiment is an example of a door having a panel assembly. Therefore, in the following description, the subdoor 7 is referred to as a door for convenience of explanation except that the subdoor 7 needs to be distinguished. It is referred to as.
- the panel assembly 10 of the door 7 has a predetermined heat insulating performance, and the shape is not limited, but is preferably approximately rectangular.
- the frame assembly 20 supports the edge of the panel assembly 10, preferably the panel assembly 10, and preferably has a predetermined heat insulating performance.
- the heat generating unit 30 is preferably provided adjacent to a portion where the panel assembly 10 and the frame assembly 20 are coupled to each other, that is, the portion 10a connected thereto. That is, the heating element 30 may be provided at a predetermined position of the panel assembly 10 and the connection portion 10a of the frame assembly 20.
- the heat generating portion 30 may be installed spaced apart from the connecting portion 10a by a predetermined distance.
- panel assembly 10 may include a front panel 16.
- the front panel 16 defines the front side of the door 7.
- the front panel 16 is made of a transparent material so that the user can see the door.
- the front panel 916 is made of a touch panel so that a user may input through the touch panel to control the operation of the home appliance.
- the front panel 16 may be a glass panel. That is, the glass panel may be a transparent panel or a touch panel.
- an interior space of the panel assembly defined by the panel assembly 10 may be referred to as an insulation space provided at the rear of the front panel 16.
- the panel assembly 10 may include an intermediate panel 14 and a rear panel 12 to enhance thermal insulation performance.
- the present invention is not limited to the example illustrated in FIG. 3, and the number of panels may vary, or other types of insulation panels may be provided.
- the panel assembly 10 may include a front panel 16 and a heat insulation panel provided at the front panel under water.
- the front panel 160, the middle panel 14 and the rear panel 12 are glass panels, and the space between the panels is sealed with a suitable gas.
- the internal space defined by the panel assembly 10 detects a touch input applied to the front panel 16 such as one or a plurality of sensors, for example, a touch sensor or an electromagnetic sensor. Sensors, may be included.
- the front panel 16 may be formed larger than other portions of the panel assembly 10. In the example shown in FIG. 2, the front panel 16 is larger than the middle panel 14 and the rear panel 12. In one example, the front panel 16 may be substantially the same size as the door 7 and may cover the frame assembly 20 when viewed from the front of the refrigerator. As described above, since the front panel 160 defines the front view of the door 7, the front panel 16 can be the same size as the door and provide a very beautiful appearance. It is possible to provide an appearance as if the entire door is formed of a single panel. For this purpose, the front panel 16 has a peripheral or peripheral front panel portion 16a. The extension may be a portion extending in all directions from the outer edge of the rear panel 12 or the middle panel 14.
- the panel assembly 10 preferably includes two or more panels 12, 14, and 16 in order to obtain a predetermined heat insulating performance.
- the panel may be formed of a glass material or a glass material.
- the edges of the panels 12, 14, and 16 are provided with spacers 18 which maintain the spacing between the panels 12, 14, and 16.
- the panels 12, 14, and 16 are provided with sealants 19. It is preferable to combine using. That is, the space between the panels may be sealed through the sealant 19.
- a plurality of panels 12 and 14 use insulating glass having a predetermined heat insulating performance.
- insulating glass having a predetermined heat insulating performance.
- two or more insulating glass it is also possible to use two or more insulating glass.
- low radiation glass for the heat insulation glass 12,14.
- low-emissivity glass can be used for both hard low-e glass and soft low-e glass, but in order to improve low-emission performance, It is preferable.
- the front panel 16 located in front of the plurality of panels 12, 14, and 16 is located in front of the door 7 and becomes the exterior of the door 7, it is recommended to use tempered glass to prevent breakage. desirable.
- the front panel 16 is made of glass (which is referred to as "discolored glass" for convenience), which can transmit light through the inside of the refrigerator. That is, the front panel 16 is opaque when the lighting inside the refrigerator is turned off so that the inside of the refrigerator is not visible from the outside, and when the lighting inside the refrigerator is turned on, the inside of the refrigerator is preferably visible from the outside.
- the front panel 16 having a discoloring function is not limited to a specific glass, color glass may be used, or glass coated with an opaque coating by TI deposition may be used. Of course, the front panel 16 also preferably has heat insulating performance.
- the front panel 16 is preferably larger than the other panels 12, 14, i.e., the middle panel 14 and the rear panel 12.
- the front panel 16 is preferably about the same size as the door. Because, as described above, the front panel 16 of the panel assembly 10 becomes the appearance of the door 7, so that if the size of the front panel 16 is the same as the size of the door 7, the user is the entire door This is because the aesthetics are improved by looking at the glass.
- the front panel 16 has an extension 16a, which extends in the width direction of the top, bottom, left, and right sides of the door at portions corresponding to the edges of the rear panel 12 and the middle panel 14. It becomes an extended part. In this configuration, the entire door can be seen as glass, thereby improving aesthetics.
- the spacer 18 may use aluminum (Al), TPS (Thermal Protection Spacer, etc.), but it is preferable to use an insulation stick to improve the insulation performance of the portion where the spacer 18 is installed. In addition, it is preferable that a moisture absorbent is provided inside the spacer 18.
- between the rear panel 12 and the middle panel 14, between the middle panel 14 and the front panel 16 may be in a vacuum state, or may be filled with air or argon (Ar) gas.
- argon gas is an inert gas that has better thermal insulation performance than air and is capable of preventing chemical alteration, it is preferable to use argon gas rather than air.
- the frame assembly 20 preferably has a certain thermal insulation performance.
- the frame assembly 20 may include, but is not limited to, a portion supporting the door with a predetermined strength for supporting the panel assembly 10, and a portion mainly having a thermal insulation function. have.
- the frame assembly 20 defines an insulation space for accommodating the insulation 60 having a predetermined insulation performance, and is preferably coupled to the panel assembly 10.
- Frame assembly 20 is not limited, but is preferably composed of a plurality of parts in consideration of the convenience of assembly of the door.
- the overall configuration of an example of the frame assembly 20 is as follows.
- the frame assembly 20 includes a rear frame 200 positioned at the rear of the door, and the frame assembly 20 includes side frames 300 and 400 positioned at the left and right sides of the door, and an upper portion positioned at the top of the door.
- the panel assembly 10 may be transparent, and the rear frame 200, the side frames 300 and 400, the upper frame 500, and the lower frame 600 together with the panel assembly 10 may provide a thermal insulation space. define. That is, these frames define a thermal insulation space with the panel assembly 10 along the upper, lower, left, and right corner portions of the panel assembly 10. In one example of a see-through transparent panel assembly 10, the thermal insulation space may receive a thermal insulator 60.
- the heat insulating material may be a heat insulating foam or other material of heat insulating material or heat insulating gas.
- the panel assembly 10 may be connected to an opening defined by inner edges of the rear frame 200, the side frames 300 and 400, the upper frame 500, and the lower frame 600.
- the insulation may be filled in the space defined by the side edges and the frames of the panel assembly 10 (see FIG. 3).
- the panel assembly 10 is a touch panel, insulation may be filled between the back panel 12 and the middle panel 14.
- the rear frame 200 is located inside the door and preferably serves to support the entire door.
- the frames 300, 400, 500, and 600 may be positioned on the top, bottom, left, and right sides of the panel assembly 10, and may form part of the outer appearance of the door.
- the frames 300, 400, 500, and 600 may prevent twisting of the door and may serve to prevent dew condensation on the door together with the heat insulating material 60.
- the frames 300, 400, 500, and 600 may form part of the exterior of the door, and may be referred to as a decorative trim that can be seen from the outside of the door, for example.
- the rear frame 200, the side frames 300 and 400, and their relationship are as follows.
- the mutual relationship between the panel assembly 10, the rear frame 200, the upper frame 500, and the lower frame 600 may be similar to each other.
- the basic structure of the rear frame 200 and the side frame (300,400) will be described here, and the detailed structure of the rear frame (200) and the side frame (300,400) will be described later. It demonstrates in an Example.
- the rear frame 200 includes a first end 220 connected to the panel assembly 10, a second end 230 connected to the side frames 300 and 400, the first end 220, and the first end 220. It is preferable to include a connection portion 210 for connecting the two ends 230.
- the first end portion 220 of the rear frame 200 is a portion connected to the rear panel 12 of the panel assembly 10, and the second end portion 230 is a portion connected to the side frame.
- the connecting portion 210 connecting the first end 220 and the second end 230 is preferably substantially parallel to the front surface of the cabinet of the refrigerator.
- the predetermined portion 235 of the rear frame 200 is preferably installed in the gasket 40, the inner surface of the gasket 40 is substantially parallel to the portion 210 connecting both ends of the rear frame 200. It is preferable.
- the first end 220 of the rear frame 200 is preferably connected to the rear panel 12 to support the rear panel 12.
- the first end portion 220 of the rear frame 200 is more preferably provided to surround the spacer 18 which is a weak insulation.
- the first end 220 is preferably located further inward in the radial direction than the spacer 18.
- the side frame 400 (for example, the right frame) is a rear frame connecting portion 420 connected to the rear frame 200, and extends from the rear frame connecting portion 420 and is preferably an outer portion of the panel assembly 10, preferably an extension portion. It may be configured to include a panel connection portion 410 adjacent to (16a).
- the panel connection part 410 of the side frame 400 is preferably connected to the end of the extension part 16a of the front panel 16.
- the side frame 300 (for example, the left frame) is also connected to the rear frame 200 and the rear frame connection part 320, and extends from the rear frame connection part 320 and preferably extends outside the panel assembly 10 ( And a panel connection portion 310 adjacent to 16a).
- the left side frame 300 has an indentation 330 that is indented into the door between the rear frame connector 320 and the panel connector 310 to allow the indentation 330 to serve as a handle of the door. Can be.
- the front end of the extension portion 16a connected to the left frame 300 of the extension portion 16a of the front panel 16 is the left frame 300. It is preferable to be located inside the rear frame connecting portion 320 of the.
- the width of the extension part 16a connected to the left frame 300 among the extension parts 16a of the front panel 16 is preferably smaller than the width of the left frame 300.
- the first end of the left frame 300 that is, the transparent window connecting portion 310, starts at a position spaced inwardly from the tip of the extension 16a of the front panel 16 and extends in the tip direction. It is preferable to be in close contact with the inner surface of the portion 16a.
- the rear frame 200, the side frames 300 and 400, the upper frame 500 and the lower frame 600 define a predetermined space
- the frames 200, 300, 400, 500, 600 and the edge portion of the panel assembly 10 may define a substantially enclosed space, which is foam filled with insulation 60, for example polyurethane foam (PU foam), frame assembly 20 ) Will have a predetermined thermal insulation performance.
- insulation 60 for example polyurethane foam (PU foam), frame assembly 20
- the insulation space may be filled due to the heat insulating materials filled in the inner space of the panel assembly 10.
- dew condensation may occur at the connection portion 10a of the panel assembly 10 and the frame assembly 20 rather than the panel assembly 10. Therefore, it is desirable to prevent the occurrence of dew condensation in this part than in other parts.
- connection portion 10a of the panel assembly 10 and the frame assembly 20 The reason that dew condensation may occur at the connection portion 10a of the panel assembly 10 and the frame assembly 20 is, as described above, the difference in thermal insulation performance of the panel assembly 10 and the frame assembly 20. Due to this, it is believed that dew condensation occurs due to the concentration of cold air in the refrigerator due to the relatively poor thermal insulation performance of the interconnect portion.
- a portion where the spacer 18 of the panel assembly 10 is installed is considered to be a particularly weak portion of thermal insulation performance.
- the heat generating unit 30 may be installed in an area between the heat insulating material 60 and the panel assembly 10. That is, the heat generating unit 30 may be provided between the heat insulating material 60 and the panel assembly 10 along the side of the inner region of the panel assembly. And, it is more preferable to install the heat generating portion 30 so as to be close to the front of the door (7).
- the heating unit 2 may be provided at the rear of the front panel 16 of the panel assembly 10. More specifically, the rear surface of the front panel 16 may be provided at a position biased to the connection portion (10a).
- the heating unit 30 may be installed in an area where the frame assembly 20 is connected to the panel assembly 10.
- the inner frame or the outer surface of the first end portion 220 of the rear frame 200 may be provided, or the inner surface or the outer surface of the panel connection portion 310 of the side frame 300 may be provided. That is, the heating part 30 may be provided at at least one place B of the inner and outer surfaces of the front and rear ends 220 and 310 of the frame assembly 20. This is because the front and rear ends of the frame assembly 20 are mainly connected to the panel assembly 10.
- the heat generating portion 30 is installed in the portion where the spacer 18 is installed, that is, inside the spacer 18 or in contact with the spacer 18. And may be installed near the spacer 18. But When the heat generating unit 30 is provided inside the spacer 18, the moisture absorbent of the spacer 18 may come out and condensation may occur inside the panel assembly 10. In addition, since the spacer 18 is located inside the panel assembly 10, when the heat generating unit 30 is installed inside or in contact with the spacer 18 or the spacer 18, a separate mounting structure must be provided. Wiring is required. Therefore, in consideration of such matters, the heating unit 30 is more preferably installed along the edge of the panel assembly 10. When the heat generating unit 30 is installed along the edge of the panel assembly 10, there is an advantage in that the installation structure is simple while the heat generating unit 30 is installed close to the spacer 18.
- the heat generating unit 30 is preferably installed close to the connection portion 10a of the panel assembly 10 and the frame assembly 20, but is not limited thereto, and the connection portion 10a and Even if it is slightly spaced apart from the heat transfer portion 30a in the position that can prevent the dew condensation phenomenon by the heat can be installed in any position on the panel assembly 10 it is possible to install the heat generating portion (30). That is, the heat generating unit 30 may be a position where condensation can be prevented by transferring heat to the connecting portion 10a.
- the heating part 30 may be provided at at least one of the edges of the front panel 16 of the panel assembly 10, that is, the inner and outer surfaces of the expansion part 16a.
- the heating unit 30 may be provided to heat only the connecting portion of the panel assembly 10 and the frame assembly 20. Therefore, it is possible to use the heating wire of the preheating form with low power consumption. Therefore, the heat generating unit 30 is preferably provided in the form of a hot wire to form a shape surrounding the edge of the panel assembly 10. That is, it is preferable that the heat generating portion 30 is a hot wire and has a shape that substantially corresponds to the shape of the edge of the panel assembly 10. When the entire panel assembly is heated, power consumption of about 60 W or more is required. However, in this embodiment, only about 7 W power consumption is required since the connection portion between the panel assembly 10 and the frame assembly 20 is heated. Therefore, the power consumption was reduced to 1/8 level.
- the side frames 300 and 400 are located rearward from the rim of the extension 16a of the front panel 16, so that when the user sees the door from the front of the door, these side frames 300 and 400 are located. May not be visible. Therefore, the front panel 16 of the panel assembly 10 is preferably equal to the size of the door. Of course, a planar shape or a curved shape may be formed.
- the panel connection part 310 may be connected to the rear surface of the extension part 16a of the front panel 16. Thus, the panel connection part 310 is not visible.
- the heating unit 30 may be installed in the vicinity of the connecting portion 10a between the panel assembly 10 and the frame assembly 20.
- an opaque part 50 is provided on an inner surface of the expansion part 16a of the front panel 16 so that the heat generating part 30 is not visible from the outside of the door, and the heat generating part 30 is provided on the inner surface of the opaque part 50. Is preferably located.
- the opaque part 50 may be easily implemented by opaquely printing the inner surface of the front panel 16.
- the heat generating unit 30 is preferably attached using a configuration having a thermal conductivity, such as aluminum (Al) tape.
- a thermal conductivity such as aluminum (Al) tape.
- Al aluminum
- the heat generating unit 30 may be temporarily fixed at the time of manufacturing the door. It is effective to prevent the intrusion.
- the heat of the heat generating unit 30 can be effectively transmitted to the surroundings by the aluminum tape.
- heat generated from the heat generating unit 30 may be effectively transferred to the peripheral portion of the front panel 16 through an attachment configuration having thermal conductivity.
- the panel assembly 10 is a see-through panel (see-through)
- the heat insulator can also be prevented from directly contacting the heat generating portion (30).
- the heat generating portion 30 may be more tightly fixed to the front panel 16 by the pressure of the heat insulating material.
- the side frames 300 and 400 of the door 7 may include heat bridges 315 and 415.
- the heat bridges 315 and 415 may be provided together with the heat generating part 30 or may be provided without the heat generating part.
- the heat bridges 315 and 415 transmit external heat transmitted from the side frames 300 and 400 to the inner region of the panel assembly 10. That is, it may be provided so as to transfer heat to the connection portion (10a) where the insulation is weak. Cold air inside the refrigerator may be transmitted to the connection part 10a near the spacer 18. Therefore, it becomes possible to heat through the heat of external air.
- the quality of foaming is influenced by the length of the foaming flow path, the shape of the foaming flow path, the change of sections of the foaming flow path shape, the filling time, and the like.
- the foaming resistance increases, and the filling time also increases as the foaming resistance increases. Therefore, the foaming liquid is not completely filled or the physical properties such as mechanical strength or insulation performance is not uniform for each foaming section and there may be a deviation.
- the foam injection hole and the foaming process in consideration of the foaming quality described above.
- the panel assembly 10 and the frame assembly 20 are temporarily assembled to form a temporary assembly door 71, and a thermal insulation is injected and foamed through the foam injection holes B4 and B5 of the temporary assembly door 71 to manufacture a door.
- the second frames 300, 400, 500, and 600 are assembled. That is, the upper deco 500 and the lower deco 600 are inserted into and fixed to the left deco 300 and the right deco 400 to form the prefabricated frame assembly 20.
- the panel assembly 10 is temporarily fixed to the prefabricated frame assembly 20 using double-sided tape, and the first frame 200 is inserted into the prefabricated door 71.
- the heat insulating material 60a of a foam liquid state is inject
- the reason why the foamed liquid is injected into the foam injection holes B4 and B5 with the temporary assembled door 71 standing vertically is as follows. This is because even when the foam injection holes B4 and B5 are located on the upper or lower surface of the prefabricated door 71, the foaming quality may be relatively lowered when the temporary assembly door 71 is placed horizontally and the foam liquid is injected.
- the foaming liquid injected into the foam injection holes B4 and B5 expands while flowing along the foam passage at the foam injection holes B4 and B5. That is, it expands while flowing to the near part GS2 from the foam injection holes B4 and B5, and expands while flowing to the far side GS1 on the other side.
- the foam injection holes (B4, B5) is located on the upper or lower surface of the prefabricated door 71, when the prefabricated door 71 is upright and injected with a foaming liquid, the place where gas accumulations are minimized. And the foaming quality can be improved more. Referring to the foaming process in the case of injecting the foaming liquid to put the temporary assembly door 71 vertically as follows.
- the foam liquid injected into the two foam injection holes B4 and B5 flows in half each of the total foam flow paths.
- the foam liquid 60a injected from each of the foam injection holes B4 and B5 flows along gravity and is first collected at the lower surface LS.
- the foamed liquid collected on the lower surface LS expands while flowing upward along the vertical flow path f1.
- the foam liquid flowing to the upper side expands while flowing along the horizontal flow path f2, and finally fills all the foam spaces.
- the door is finally manufactured. Therefore, when the prefabricated door 71 is placed vertically and the foaming liquid is injected, gas accumulation may occur only at the portion GS2 where foaming is finally completed, and thus only one air vent hole may be provided, and also unfilled. Can be effectively prevented.
- the preassembled door 71 is placed vertically and injected with a foaming liquid, which has the following advantages. That is, when the left and right widths FW1 of the frame assembly 20 are relatively small, for example, 35 mm or less, the foamed liquid injected into the foam injection holes B4 and B5 flows downward to be buried inside the frame assembly 20. It was thought that there would be a problem in the foaming quality. By the way, unexpectedly, even if some of the injected foam liquid contacted the inside of the frame assembly 20, there was no problem in foaming quality.
- the foamed liquid that flowed to the bottom of the frame assembly without being buried inside the frame assembly 20 and the foamed liquid buried inside the frame assembly 20 were foamed together, and thus even foaming was possible. That is, in the case of foaming the foam vertically, a portion of the foam is buried inside the frame assembly 2 using the resistance due to the viscosity of the foam, and the rest reaches the lower portion LS so that the foam is formed at the vertical portion and the lower portion. At the same time there is an advantage that even foaming is possible.
- the foam flow path is substantially reduced in half, the shape change of the foam flow path is reduced in half, and the filling time is also reduced. Therefore, it is possible to prevent the filling of the foam liquid, and to minimize variations in physical properties such as thermal insulation performance and bonding strength.
- the case where the foam injection holes B4 are provided at both ends of the lower surface of the frame assembly 20 is not limited thereto.
- the foam flow path becomes the entire space formed by the frame assembly, the foam flow path is relatively long.
- the filling time also becomes relatively long.
- the cross-sectional shape of the side surface, that is, the left side, the right side, the top side, and the bottom side of the frame assembly 20 is similar in general but not completely the same. This is because the components installed in the spaces are different.
- the structure of the space where the electrical equipment is installed, the space where the hinge member is coupled, and the portion coupled to the main door may not be the same. Accordingly, the panel assembly 10 and the frame assembly 20 are similar in terms of their dimensions, but specific shapes, dimensions, and the like may be slightly different. (See the left, right, top, and bottom cross-sectional views of FIG. 5).
- one foam injection hole is provided on the bottom surface of the frame assembly 20, it is preferable to select a position that can maximize the foaming quality.
- the handle is provided on one side of the frame assembly 20, it is preferable to select the foam injection hole B4 at the end of the opposite side.
- the present invention is not limited to the above-described embodiments, and modifications may be made by those skilled in the art to which the present invention pertains, and such modifications are within the scope of the present invention.
- a door without the panel assembly 10 for example to the main door (see 5 in FIG. 1).
- the main door 5 has a central portion 52 open, has a surrounding edge, that is, a supporting portion 54 of the central portion 52, and a heat insulating material is accommodated in a space defined by the supporting portion 54.
- the support portion 54 has a predetermined strength so that the main door 5 is rotatably connected to the refrigerator cabinet 1 and has a predetermined heat insulating performance so that cold air inside the refrigerator does not leak to the outside. Since the support part 54 of the main door 5 has a middle weight opening, the width
- the present invention is not limited thereto.
- the present invention can be applied even when the subdoor 7 is smaller than the main door 5.
- FIGS. 7 and 8 the air inlet relationship for the flow direction of the foam injection hole and the foam liquid and the smooth flow of the foam liquid will be described in detail.
- the position of the foam injection port may be slightly different from the above-described embodiment.
- the foam liquid is injected into the first injection hole B5 and the second injection hole B4.
- the pressure of the foam liquid injected into the first injection hole B5 and the second injection hole B4 may be set differently. That is, the foam liquid injected into the side of the first injection hole B5 flowing into a relatively large space may be injected at a relatively high pressure.
- the foam is injected into the first injection port (B5) is introduced into the foam space formed by the side frame 300 and the panel assembly 10.
- the foam liquid flows sequentially into the foam space formed by the lower frame 600 and the panel assembly 10.
- the foam liquid injected into the second injection hole B4 is first injected into the foam space formed by the lower frame 600 and the panel assembly 10, and then the side frame 400 and the panel assembly 10. Flows into the foaming space to form.
- the foam liquid injected into the first injection hole B5 and the second injection hole B4 at the same time may be formed in the foam space or the side frame 400 and the panel assembly 10 formed by the upper frame 500 and the panel assembly 10. They meet each other in the foam space formed by).
- the foam injection holes (B4, B5) can be shielded by a separate configuration, such as inlet cover.
- the filling direction of the first injection hole (B5) may be the same as the longitudinal direction of the side frame (300).
- the filling direction of the first injection hole B5 is preferably the same as the longitudinal direction of the side frame 300. That is, the foaming liquid injected through the first inlet B5 is maintained in the same length direction as the side frame 300 without changing the flow direction. Of course, the flow direction can then be changed.
- the filling direction of the second injection hole B4 is the same as that of the side frame 400.
- the first injection hole (B5) is located directly or under the side of the side frame 300
- the second injection hole (B) is located in a position biased to one side in the upper portion or directly below the side frame (400). This is preferred.
- the foamed liquid injected through the second injection hole B4 does not flow into the side frame 400 for the first time, but flows along the lower frame 600 which is positioned perpendicular to the side frame 400 and then the side frame ( 400) in the longitudinal direction.
- the difference between the first injection hole and the second injection hole may be due to the difference in cross section of the foam space in the side frames (300, 400). That is, the side frame 300 having a larger cross section is preferably provided with an injection hole in the upper or lower portion of the longitudinal direction, and the side frame 400 having a smaller cross section has one side (door) at the upper or lower portion in the longitudinal direction. It is preferred that the injection hole is biased toward the middle of).
- the injection pressure at the first injection hole B5 is greater, and the foam liquid injected through the first injection hole B5 substantially fills a larger portion of the pore space.
- the foam solution injected into the first inlet B5 may be 70% and the foam solution injected into the second inlet B4 may be 30%.
- the rear frame 200 is preferably formed with a vent hole 250 through which air remaining inside the sub-door 7 can be discharged when the foaming liquid is injected.
- the vent hole 250 may be formed in the gasket mounting groove 235 formed to mount the gasket 40 along the rear frame 200.
- the gasket mounting groove 235 is recessed along the circumference of the rear frame 200, and the vent hole 250 may be formed at a predetermined interval on the gasket mounting groove 592. After the filling of the foamed liquid, the sub-door gasket 591 is mounted in the gasket mounting groove 235. Accordingly, the vent hole 250 may be covered by the sub door gasket 591 and may not be exposed to the outside.
- the vent hole 250 may be formed in a portion of the gasket mounting groove 235. As illustrated in FIG. 8, the vent holes 250 may be formed at predetermined intervals along areas A and B in which the upper frame 500 and the side frame 400 are disposed. In particular, the upper frame 500 and the side frame 400 may be formed at a predetermined interval based on the corners that meet each other. Therefore, the air inside the sub-door 50 may be discharged at an area adjacent to the point where the foam liquids injected into the first injection hole B5 and the second injection hole B4 meet each other, and the foam liquid may be completely filled. Until the continuous discharge of air is possible.
- vent hole 250 is formed at the edge portion of the side frame 400 and the upper frame 500 in the diagonal direction of the first injection hole B4 having a higher foaming pressure.
- the lower frame 600 may be provided with a hinge mounting portion 610. Therefore, it is preferable that the second inlet B4 is biased toward the center portion of the door as compared with the hinge mount 610. That is, the foam cross section of the side frame 400 corresponding to the hinge mount 610 is preferably smaller than the foam cross section of the side frame 300 in the opposite position.
- the lower frame 600 may be provided with a sensor mounting part 620.
- the sensor mounting unit 620 may be equipped with a sensor for detecting the touch input or knock input of the user is applied to the sensor or panel assembly 10 for detecting the approach of the human body. Therefore, it is preferable that the first inlet B5 is biased toward the side surface of the door as compared with the sensor mounting part 620.
- the foamed liquid injected through the first inlet B5 initially flows downwardly (filling the side frame 300) and then toward the second inlet B4. Can be flowed horizontally.
- the foam liquid injected through the second inlet B4 may initially be flowed toward the first inlet B5 and then vertically downward (filling the side frame 400).
- An inlet cover that turns the foam inlet, where all of the injection is complete, can be combined with the lower frame. Therefore, the foam injection port is shielded outside the door. Of course, the vent hole may also be turned. Through this, it is possible to secure a thermal insulation performance of the door and at the same time provide a beautiful appearance.
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Abstract
Description
Claims (20)
- 패널 어셈블리; 그리고개구부를 갖고, 상기 개구부에 상기 패널 어셈블리의 테두리가 연결되어 상기 패널 어셈블리를 지지하고, 상기 프레임 어셈블리와 상기 패널 어셈블리의 테두리 사이에 단열재를 수용하는 발포 공간을 만드는 프레임 어셈블리를 포함하며,상기 프레임 어셈블리의 상면, 하면, 좌측면 및 우측면의 단부 중 최소한 한 곳에 상기 단열재가 주입되는 발포주입구가 구비되는 것을 특징으로 하는 가전제품용 도어.
- 제1항에 있어서,상기 프레임 어셈블리는, 상기 도어의 후면에 위치하는 후방프레임과; 상기 후방프레임과 연결되어 상기 발포 공간을 만드는 측면프레임을 포함하는 것을 특징으로 하는 가전제품용 도어.
- 제2항에 있어서,상기 패널 어셈블리는 두 개 이상의 유리 패널과 상기 유리패널들의 테두리 사이에 구비되는 스페이서를 포함하며,상기 스페이서의 인접 부위에는 발열부가 구비되는 것을 특징으로 하는 가전제품용 도어.
- 제1항에 있어서,상기 프레임 어셈블리의 깊이는 상기 패널 어셈블리의 깊이와 실질적으로 동일한 것을 특징으로 하는 가전제품용 도어.
- 제1항에 있어서,상기 프레임 어셈블리의 폭은 35mm 이하인 것을 특징으로 하는 가전제품용 도어.
- 제1항 내지 제5항 중 어느 한 항에 있어서,상기 발포주입구는 상기 프레임 어셈블리의 양단부에 구비되는 것을 특징으로 하는 가전제품용 도어.
- 제1항 내지 제5항 중 어느 한 항에 있어서,상기 발포주입구는 상기 프레임 어셈블리의 상면 및 하면의 단부 중의 최소한 한 곳에 구비되는 것을 특징으로 하는 가전제품용 도어.
- 제7항에 있어서,상기 발포주입구는 상기 프레임 어셈블리의 하면의 양단부에 구비되는 것을 특징으로 하는 가전제품용 도어
- 제1항 내지 제5항 중 어느 한 항에 있어서,상기 프레임 어셈블리의 길이가 긴 방향으로 상기 발포주입구가 구비되는 것을 특징으로 하는 가전제품용 도어.
- 냉장고의 외관을 이루는 캐비넷;상기 캐비넷에 회전 가능하게 결합되는 메인도어;그리고상기 메인도어에 회전 가능하게 결합되는 서브도어를 포함하는 냉장고에 있어서,상기 서브도어는,패널 어셈블리;개구부를 갖고, 상기 개구부에 상기 패널 어셈블리의 테두리가 연결되어 상기 패널 어셈블리를 지지하고, 상기 프레임 어셈블리와 상기 패널 어셈블리의 테두리 사이에 단열재를 수용하는 발포 공간을 만드는 프레임 어셈블리를 포함하며,상기 프레임 어셈블리의 상면, 하면, 좌측면 및 우측면의 단부 중 최소한 한 곳에 상기 단열재가 주입되는 발포주입구가 구비되며, 상기 프레임 어셈블리의 후면 중 상기 발포주입구와 대각선 위치에 발포 시 공기가 배출되는 벤트 홀이 구비됨을 특징으로 하는 냉장고.
- 좌우 폭보다 높이가 긴 직사각형 형상의 패널 어셈블리;상기 패널 어셈블리의 테두리를 둘러싸서 상기 패널 어셈블리를 지지하고, 상기 패널 어셈블리와의 사이에서 발포 공간을 형성하며, 상부프레임, 하부 프레임 그리고 양측의 측면프레임을 포함하는 프레임 어셈블리; 그리고상기 하부프레임의 좌우 단부 각각에 상기 발포 공간으로 단열재를 주입하도록 구비되는 발포 주입구를 포함함을 특징으로 하는 가전제품용 도어.
- 제 11 항에 있어서,상기 발포 주입구는 상기 측면프레임의 직하부에 구비되는 제1주입구와 상기 측면프레임의 직하부에서 도어 내측으로 치우쳐 구비되는 제2주입구를 포함함을 특징으로 하는 가전제품용 도어.
- 제 12 항에 있어서,상기 제1주입구는 양측의 측면프레임 중 발포 공간의 단면적이 더 큰 제1측면프레임의 길이 방향과 동일하게 발포가 수행되도록 구비되며,상기 제2주입구를 통해 주입된 발포액은 상기 하부 프레임에 의해 형성되는 발포 공간으로 유동된 후 상기 제2측면프레임에 의해 형성되는 발포 공간으로 유동되도록, 상기 제2주입구는 양측의 측면프레임 중 발포 공간의 단면적이 더 작은 제2측면프레임의 길이 방향에서 도어 내측으로 치우쳐 구비됨을 특징으로 하는 가전제품용 도어.
- 제 11 항 내지 제 13 항 중 어느 한 항에 있어서,상기 프레임 어셈블리는 상기 패널 어셈블리의 후방에서 상기 패널 어셈블리를 지지하며, 상기 상부프레임, 하부 프레임 그리고 양측의 측면프레임과 함께 상기 패널 어셈블리와의 사이에서 상기 발포 공간을 형성하는 후방프레임을 포함함을 특징으로 하는 가전제품용 도어.
- 제 14 항에 있어서,상기 후방프레임에는 가스켓이 장착되는 가스켓 장착홈이 형성되며, 상기 가스켓 장착홈에 상기 발포 시 상기 발포 공간 내부의 공기가 외부로 배출되도록 벤트 홀이 형성됨을 특징으로 하는 가전제품용 도어.
- 전면 패널과 후방 패널을 포함하는 패널 어셈블리;상기 후방 패널과 연결되는 후방 프레임, 상기 후방 프레임과 상기 전면 패널 사이를 연결하는 측면 프레임을 포함하는 프레임 어셈블리;상기 프레임 어셈블리와 상기 패널 어셈블리 사이에 형성되어 단열재가 수용되는 단열 공간;상기 프레임 어셈블리의 상면, 하면, 좌측면 및 우측면의 단부 중 최소한 한 곳에 상기 단열재가 상기 프레임 어셈블리의 길이 방향으로 발포되도록 구비되는 발포주입구를 포함하며,상기 발포 방향과 수직 방향으로 팽창되는 단열재의 팽창 압력에 의해서 상기 후방 프레임과 측면 프레임 사이의 결합력이 증진되도록, 상기 후방 프레임의 일부가 상기 측면 프레임의 내부로 삽입되어 상기 후방 프레임과 측면 프레임이 결합됨을 특징으로 하는 가전제품용 도어.
- 제 16 항에 있어서,상기 측면프레임은 상기 전면패널의 후면을 따라 반경 방향 내측으로 연장되는 히트브릿지를 포함하며, 상기 히트브릿지는 상기 전면패널의 후면과 나란하도록 형성됨을 특징으로 하는 가전제품용 도어.
- 제 17 항에 있어서,상기 히트브릿지와 상기 전면패널의 후면 사이에는 상기 전면패널과 밀착되도록 열선이 구비됨을 특징으로 하는 가전제품용 도어.
- 제 18 항에 있어서,상기 열선은 금속 시트(sheet)를 통해서 상기 전면패널에 밀착되도록 구비되어 상기 열선으로 단열재의 유입이 차단되며, 상기 금속 시트에 가해지는 단열재의 압력에 의해서 상기 열선의 위치가 고정됨을 특징으로 하는 가전제품용 도어.
- 제 16 항 내지 제 19 항 중 어느 한 항에 있어서,상기 프레임 어셈블리의 반경 방향 내측 영역에 대응되는 상기 패널 어셈블리의 중앙부는 상기 도어의 시스루 영역 또는 사용자의 터치 입력이 가해지는 터치 영역임을 특징으로 하는 가전제품용 도어.
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CN202010017221.5A CN111397287B (zh) | 2015-07-15 | 2016-07-15 | 冰箱 |
EP20214627.0A EP3827957B1 (en) | 2015-07-15 | 2016-07-15 | Refrigerator |
KR1020167031417A KR20170019341A (ko) | 2015-07-15 | 2016-07-15 | 가전제품용 도어, 가전제품 및 이의 제조방법 |
CN201680002237.0A CN106605116B (zh) | 2015-07-15 | 2016-07-15 | 用于家电的门、家电及其制造方法 |
EP16794914.8A EP3147606B1 (en) | 2015-07-15 | 2016-07-15 | Home appliance door and a home appliance |
KR1020187018463A KR101909991B1 (ko) | 2015-07-15 | 2016-07-15 | 냉장고 도어 |
US15/310,173 US10228182B2 (en) | 2015-07-15 | 2016-07-15 | Door for home appliance, home appliance, and method for manufacturing the same |
EP24181551.3A EP4421426A3 (en) | 2015-07-15 | 2016-07-15 | Door for home appliance, home appliance, and method for manufacturing the same |
US16/252,389 US10502479B2 (en) | 2015-07-15 | 2019-01-18 | Door for home appliance, home appliance, and method for manufacturing the same |
US16/685,631 US10941975B2 (en) | 2015-07-15 | 2019-11-15 | Door for home appliance, home appliance, and method for manufacturing the same |
US17/166,421 US11408665B2 (en) | 2015-07-15 | 2021-02-03 | Door for home appliance, home appliance, and method for manufacturing the same |
US17/858,490 US11698220B2 (en) | 2015-07-15 | 2022-07-06 | Door for home appliance, home appliance, and method for manufacturing the same |
US18/200,731 US12013172B2 (en) | 2015-07-15 | 2023-05-23 | Door for home appliance, home appliance, and method for manufacturing the same |
US18/423,524 US20240159454A1 (en) | 2015-07-15 | 2024-01-26 | Door for home appliance, home appliance, and method for manufacturing the same |
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KR20150100427 | 2015-07-15 | ||
KR10-2015-0100427 | 2015-07-15 |
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US15/310,173 A-371-Of-International US10228182B2 (en) | 2015-07-15 | 2016-07-15 | Door for home appliance, home appliance, and method for manufacturing the same |
US16/252,389 Continuation US10502479B2 (en) | 2015-07-15 | 2019-01-18 | Door for home appliance, home appliance, and method for manufacturing the same |
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WO2017010849A1 true WO2017010849A1 (ko) | 2017-01-19 |
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EP (3) | EP3827957B1 (ko) |
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WO (1) | WO2017010849A1 (ko) |
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US10941975B2 (en) | 2021-03-09 |
US11698220B2 (en) | 2023-07-11 |
EP3147606A1 (en) | 2017-03-29 |
US10228182B2 (en) | 2019-03-12 |
EP3827957B1 (en) | 2024-09-04 |
KR20180078334A (ko) | 2018-07-09 |
KR101909991B1 (ko) | 2018-12-19 |
US20210164722A1 (en) | 2021-06-03 |
EP3147606B1 (en) | 2021-02-24 |
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US20200080766A1 (en) | 2020-03-12 |
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US20230288130A1 (en) | 2023-09-14 |
US20220333848A1 (en) | 2022-10-20 |
EP4421426A2 (en) | 2024-08-28 |
EP3147606A4 (en) | 2018-09-19 |
CN111397287A (zh) | 2020-07-10 |
EP4421426A3 (en) | 2024-10-30 |
EP3827957A1 (en) | 2021-06-02 |
US20240159454A1 (en) | 2024-05-16 |
CN106605116B (zh) | 2020-02-07 |
CN111397287B (zh) | 2022-06-03 |
US12013172B2 (en) | 2024-06-18 |
US20180112909A1 (en) | 2018-04-26 |
KR20170019341A (ko) | 2017-02-21 |
CN106605116A (zh) | 2017-04-26 |
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