# US 10,502,479 B2 · Door for home appliance, home appliance, and method for manufacturing the same

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- Number: US 10,502,479 B2
- Document ID: US10502479B2
- Status: Granted
- Kind: B2
- Application number: 16/252,389
- Filed: 2019-01-18
- Published: 2019-05-23
- Granted: 2019-12-10
- Earliest claimed: 2015-07-15
- Assignees: LG Electronics Inc.
- Applicants: LG Electronics Inc.
- Inventors: Kwanghyun Choi; Hyungkyu Park; Myeongha Yi
- Web page: https://patentgrep.com/patent/US10502479B2

## CPC

- F25D 23/028: {Details}
- A47F 3/0434: {Glass or transparent panels}
- B29C 44/588: {with means for venting, e.g. releasing foaming gas}
- F25D 21/04: Preventing the formation of frost or condensate
- F25D 23/02: Doors; Covers (F25D23/08 takes precedence {locks or fastenings E05B65/0042})
- F25D 23/025: {Secondary closures}
- F25D 23/064: {formed by moulding, e.g. moulding in situ}
- F25D 23/065: {Details}
- B29C 44/188: {Sealing off parts of the cavities}
- B29K 2075/00: Use of {PU, i.e.} polyureas or polyurethanes {or derivatives thereof}, as moulding material
- B29L 2031/7622: {Refrigerators}
- F25D 2201/10: with respect to heat
- F25D 2323/023: Door in door constructions
- F25D 2400/361: Interactive visual displays
- F25D: REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR (refrigerated showcases A47F3/04; thermally-insulated vessels for domestic use A47J41/00; refrigerated vehicles, see the appropriate subclasses of classes B60 - B64; containers with thermal insulation in general B65D81/38; heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerants, or materials for the production of heat or cold by chemical reactions other than by combustion C09K5/00; thermally-insulated vessels for liquefied or solidified gases F17C; air-conditioning or air-humidification F24F; refrigeration machines, plants, or systems F25B; cooling of instruments or comparable apparatus without refrigeration G12B)
- A47F: SPECIAL FURNITURE, FITTINGS, OR ACCESSORIES FOR SHOPS, STOREHOUSES, BARS, RESTAURANTS OR THE LIKE; PAYING COUNTERS
- 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 (making preforms B29B11/00; making laminated products by combining previously unconnected layers which become one product whose layers will remain together B32B37/00 - B32B41/00)
- 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
- B29L: INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES

## Abstract

A door for a home appliance, a home appliance, and a method for manufacturing the same, are disclosed. The door for a home appliance comprises a panel assembly; and a frame assembly defining a predetermined space having an opening connected with an edge of the panel assembly, and making a foaming space for receiving a thermal insulator by means of the predetermined space of the frame assembly and the edge of the panel assembly, wherein a foaming injection hole through which the thermal insulator is injected is provided on at least one of ends of an upper surface, a lower surface, a left side and a right side of the frame assembly.

## Claims

### Claim 1

A refrigerator comprising:
a cabinet defining a storage chamber therein;
a lighting unit provided in the refrigerator; and
a door that opens and closes the storage chamber and hingedly coupled to the cabinet,
wherein the door includes a panel assembly and a frame assembly connected to the panel assembly,
wherein the door defines an insulating space to prevent a heat outside the refrigerator from being transmitted to the storage chamber,
the insulating space includes a first insulating space and a second insulating space,
wherein the panel assembly includes a front panel made of a transparent material and an insulation panel provided at the rear of the front panel and spaced apart from the front panel,
the first insulating space is defined by the front panel and the insulation panel,
the second insulating space is defined by the panel assembly and the frame assembly and extended along an outer periphery of the panel assembly,
wherein the second insulating space is provided outside the first insulating space and filled with an insulating material,
wherein an inlet for injecting insulating material is provided on at least one of the upper portion or lower portion of the frame assembly,
at least a portion of the inlet is arranged to overlap an upper side or a lower side of the panel assembly,
wherein an interior of the storage chamber is visible through the first insulating space from an outside of the refrigerator when the lighting unit is turned on in a state in which the door closes the storage chamber.

### Claim 2 (depends on 1)

The refrigerator of claim 1, wherein at least the portion of the inlet is arranged to overlap an upper side or a lower side of the insulation panel.

### Claim 3 (depends on 2)

The refrigerator of claim 2, wherein the panel assembly further includes a spacer arranged between the front panel and the insulating panel, and
wherein at least the portion of the inlet is arranged to overlap an upper side or a lower side of the spacer.

### Claim 4 (depends on 1)

The refrigerator of claim 1, wherein the frame assembly comprises:
an upper frame and a lower frame;
at least one side frame that is connected to the upper frame and the lower frame, and that has a length that is longer than a length of the upper frame and longer than a length of the lower frame; and
a rear frame that is connected to the at least one side frame and that is in contact with the insulating panel of the panel assembly of the door,
wherein at least the portion of the inlet is provided on at least one of the upper frame or the lower frame.

### Claim 5 (depends on 4)

The refrigerator of claim 4, wherein another portion of the inlet is arranged to overlap a space between the at least one side frame and a side surface of the panel assembly.

### Claim 6 (depends on 5)

The refrigerator of claim 5, wherein the panel assembly further includes a spacer arranged between the front panel and the insulating panel, and
the side surface of the panel assembly is defined by the spacer and the insulating panel.

### Claim 7 (depends on 4)

The refrigerator of claim 4, wherein the front panel has a size greater than that of the insulation panel, and
the at least one side frame is in contact with a rear surface of the front panel.

### Claim 8 (depends on 4)

The refrigerator of claim 4, wherein the inlet is provided on the lower frame.

### Claim 9 (depends on 8)

The refrigerator of claim 8, wherein the inlet is provided on both ends of the lower frame.