Door for home appliance, home appliance, and method for manufacturing the same

Patent metadata

Field	Value
Publication number	US-11408665-B2
Application number	US-202117166421-A
Country	US
Kind code	B2
Filing date	Feb 3, 2021
Priority date	Jul 15, 2015
Publication date	Aug 9, 2022
Grant date	Aug 9, 2022

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.

First claim

What is claimed is:

1. A refrigerator comprising:
a cabinet having a storage chamber; and
a door configured to be rotatable with respect to the cabinet;
wherein the door comprises:
a frame configured to define a space into which a foaming agent is to be provided, the frame having at least a first surface and a second surface,
a first injection hole configured to inject the foaming agent into the space and disposed on the first surface of the frame,
a second injection hole configured to inject the foaming agent into the space and spaced apart from the first injection hole on the first surface of the frame,
a gasket on the second surface of the frame, and
vent holes provided on the second surface of the frame and spaced apart from the first and second injection holes,
wherein the first surface of the frame is provided at an upper portion or a lower portion of the frame, and the second surface of the frame is provided at a rear portion of the frame.

2. The refrigerator of claim 1 , wherein the frame includes an upper frame, a lower frame, a first side frame, a second side frame, and a rear frame,
wherein the lower frame includes the first surface of the frame.

3. The refrigerator of claim 2 , wherein the space includes a first foaming path formed by the first side frame and a second foaming path formed by the second side frame,
wherein the first foaming path extends in a vertical direction, and the second foaming path extends in the vertical direction.

4. The refrigerator of claim 3 , wherein at least a portion of the first injection hole is overlapped with the first foaming path.

5. The refrigerator of claim 2 , wherein the rear frame includes a gasket mounting groove on which the gasket is disposed, and
wherein the vent holes are disposed on the gasket mounting groove.

6. The refrigerator of claim 1 , wherein the frame includes a handle, and
wherein the first injection hole is closer to the handle than the second injection hole.

7. The refrigerator of claim 1 , wherein the frame includes a hinge mounting portion, and
wherein the second injection hole is closer to the hinge mounting portion than the first injection hole.

8. The refrigerator of claim 7 , wherein a distance between the second injection hole and the hinge mounting portion is less than a distance between a center portion of the first surface of the frame and the first injection hole.

9. The refrigerator of claim 1 , wherein the first injection hole is disposed opposite the second injection hole with respect to a center portion of the first surface of the frame.

10. A refrigerator comprising:
a cabinet having a storage chamber;
a main door configured to open and close the storage chamber; and
a sub door rotatably coupled to the main door;
wherein the sub door comprises:
a frame configured to define a space into which a foaming agent is to be provided, the frame having at least a first surface and a second surface, and the frame including an opening,
a panel assembly to be in contact with the frame,
wherein the panel assembly comprises:
a front panel made of a transparent material; and
an insulation panel spaced apart from the front panel and that covers the opening;

wherein the frame comprises:
a first injection hole configured to inject the foaming agent into the space and disposed on the first surface of the frame,
a second injection hole configured to inject the foaming agent into the space and spaced apart from the first injection hole on the first surface of the frame,
a gasket disposed on the second surface of the frame,
vent holes provided on the second surface of the frame and spaced apart from the first and second injection holes,
wherein the first surface of the frame is provided at an upper portion or a lower portion of the frame, and the second surface of the frame is provided at a rear portion of the frame.

11. The refrigerator of claim 10 , wherein the frame includes an upper frame, a lower frame, a first side frame, a second side frame, and a rear frame,
wherein the lower frame includes the first surface of the frame.

12. The refrigerator of claim 11 , wherein the space includes a first foaming path formed by the first side frame and a second foaming path formed by the second side frame, and
wherein the first foaming path is to extend in a vertical direction, and the second foaming path is to extend in the vertical direction.

13. The refrigerator of claim 12 , wherein at least a portion of the first injection hole is overlapped with the first foaming path.

14. The refrigerator of claim 11 , wherein the rear frame includes a gasket mounting groove on which the gasket is disposed, and
wherein the vent holes are disposed on the gasket mounting groove.

15. The refrigerator of claim 11 , wherein the lower frame includes a hinge mounting portion, and
wherein the second injection hole is closer to the hinge mounting portion than the first injection hole.

16. The refrigerator of claim 15 , wherein the second injection hole is provided between the hinge mounting portion and a center portion of the first surface.

17. The refrigerator of claim 10 , wherein the frame includes a handle, and
wherein the first injection hole is closer to the handle than the second injection hole.

18. The refrigerator of claim 10 , wherein the first injection hole is disposed opposite the second injection hole with respect to a center portion of the first surface.

19. A refrigerator comprising:
a cabinet having a storage chamber; and
a door configured to be rotatable with respect to the cabinet;
wherein the door comprises:
a frame configured to provide a space into which a foaming agent is to be provided, the frame including an upper frame, a lower frame, a first side frame, a second side frame, and a rear frame,
a first hole disposed on one of the upper frame or the lower frame, and configured to guide the foaming agent into the space,
a second hole disposed on the one of the upper frame or the lower frame, and configured to guide the foaming agent into the space, the second hole being spaced away from the first hole,
a gasket on the rear frame of the frame, and
a plurality of vent holes disposed on the rear frame of the frame.

20. The refrigerator of claim 19 , comprising a gasket mounting groove on which the gasket is disposed, and wherein the vent holes are disposed on the gasket mounting groove.

21. The refrigerator of claim 19 , wherein the first side frame provides a vertical flow path, and the second side frame provides a vertical flow path, and
the upper frame provides a horizontal flow path, and the lower frame provides a horizontal flow path.

22. The refrigerator of claim 21 , wherein the first hole is positioned at an upper portion of one of the vertical flow paths, and
the second hole is positioned at an upper portion of one of the horizontal flow paths.

23. The refrigerator of claim 22 , wherein the first hole overlaps the one of vertical flow paths in a vertical direction, and the second hole overlaps the one of the horizontal flow paths in the vertical direction.

24. The refrigerator of claim 21 , wherein the second hole does not overlap any one of the vertical flow paths in the vertical direction.

25. The refrigerator of claim 21 , wherein the foaming agent introduced through the second hole flows from the one of the horizontal flow paths to at least one of the vertical flow pa

Assignees

• Lg Electronics Inc

Inventors

• Choi Kwanghyun
• Park Hyungkyu
• Yi Myeongha

Classifications

• B29K2075/00

  Use of {PU, i.e.} polyureas or polyurethanes {or derivatives thereof}, as moulding material · CPC title

• F25D23/028 Primary

  Details · CPC title

• A47F3/0434

  Glass or transparent panels · CPC title

• F25D2201/10

  with respect to heat · CPC title

• F25D23/02 Primary

  Doors; Covers (F25D23/08 takes precedence {locks or fastenings E05B65/0042}) · CPC title