Extruded plastic front frame profiles for cooling appliances

Patent metadata

Field	Value
Publication number	US-11168934-B2
Application number	US-202016750021-A
Country	US
Kind code	B2
Filing date	Jan 23, 2020
Priority date	Jan 23, 2020
Publication date	Nov 9, 2021
Grant date	Nov 9, 2021

Abstract

A refrigerator front frame for a refrigerator appliance, includes: four extruded plastic profiles; four corner connecting pieces configured to join the four extruded plastic profiles to form the refrigerator front frame, wherein a co-extruded, thin metal strip is embedded within a wall of each of the four extruded plastic profiles so as to be near an outer surface of a corresponding extruded plastic profile as compared to an overall wall thickness of the corresponding extruded plastic profile.

First claim

What is claimed is:

1. A refrigerator front frame for a refrigerator appliance, comprising:
four extruded plastic profiles; and
four corner connecting pieces configured to join the four extruded plastic profiles to form the refrigerator front frame,
wherein at least one of a co-extruded or assembled, thin metal strip is embedded within a wall of each of the four extruded plastic profiles so as to be near an outer surface of a corresponding extruded plastic profile as compared to an overall wall thickness of the corresponding extruded plastic profile without being exposed from the outer surface of the corresponding extruded plastic profile,
wherein a heating tube for distributing non-condensation heat is disposed to directly contact against an exposed rear side of the thin metal strip on a back side of the corresponding extruded plastic profile, and
wherein the heating tube is retained by a clip and opposing extruded features that each project from the wall perpendicular to the thin metal strip and have hooks which hold the clip in place.

2. The refrigerator front frame of claim 1 , wherein the thin metal strip has a thickness in a range of 0.4 mm to 1.0 mm.

3. The refrigerator front frame of claim 1 , wherein the thin metal strip has a thickness of 0.5 mm.

4. The refrigerator front frame of claim 1 , wherein the thin metal strip is spaced apart from the outer surface of the corresponding extruded plastic profile a distance in a range of 0.5 mm to 1.0 mm.

5. The refrigerator front frame of claim 1 , wherein the thin metal strip is spaced apart from the outer surface of the corresponding extruded plastic profile a distance of 0.75 mm.

6. The refrigerator front frame of claim 1 , wherein each of the four extruded plastic profiles comprises acrylonitrile butadiene styrene (ABS) plastic as a core plastic part and a co-extruded protective polymethylmethacrylate (PMMA) layer over the core plastic part.

7. The refrigerator front frame of claim 1 , wherein each of the four extruded plastic profiles comprises an acrylonitrile styrene acrylate (ASA) plastic as a plastic part.

8. The refrigerator front frame of claim 1 , wherein each of the four corner connecting pieces is an injection molded plastic part.

9. A method of forming each of the four extruded plastic profiles of the refrigerator front frame for a refrigerator appliance of claim 1 , comprising the step of:
co-extruding an acrylonitrile butadiene styrene (ABS) plastic as a core plastic part and a protective polymethylmethacrylate (PMMA) layer over the core plastic part.

10. A method of forming each of the four extruded plastic profiles of the refrigerator front frame for a refrigerator appliance of claim 1 , comprising the step of:
extruding an acrylonitrile styrene acrylate (ASA) plastic as a plastic part.

11. The refrigerator front frame of claim 1 , wherein the refrigerator front frame having the four extruded plastic profiles and the four corner connecting pieces forms a front frame of a French door bottom mount (FDBM) refrigerator appliance.

12. The refrigerator front frame of claim 1 , further comprising a plurality of the refrigerator front frames each having the four extruded plastic profiles and the four corner connecting pieces and each forming a corresponding front frame of one of multiple adjacent cooling appliances which are installed as a group.

13. The refrigerator front frame of claim 12 , wherein the multiple adjacent cooling appliances include a French door bottom mount (FDBM) refrigerator appliance in a middle position, and a freezer column appliance on one side and a wine cooler appliance on the other side of the FDBM refrigerator appliance.

14. The refrigerator front frame of claim 1 , wherein each of the four extruded plastic profiles is extruded in color and has a uniform, consistent appearance.

15. A refrigerator front frame for a refrigerator appliance, comprising:
four extruded plastic profiles; and
four corner connecting pieces configured to join the four extruded plastic profiles to form the refrigerator front frame,
wherein at least one of a co-extruded or assembled, thin metal strip is embedded within a wall of each of the four extruded plastic profiles so as to be near an outer surface of a corresponding extruded plastic profile as compared to an overall wall thickness of the corresponding extruded plastic profile without being exposed from the outer surface of the corresponding extruded plastic profile,
wherein a heating tube for distributing non-condensation heat is disposed to directly contact against an exposed rear side of the thin metal strip on a back side of the corresponding extruded plastic profile, and
wherein a refrigerant with excess heat is passed through the heating tube to prevent condensation from forming at a front surface of the refrigerator front frame,
wherein the heating tube is retained by a clip and opposing extruded features that each project from the wall perpendicular to the thin metal strip and have hooks which hold the clip in place.

Assignees

• Bsh Home Appliances Corp
• Bsh Hausgeraete Gmbh

Inventors

• Celik Cetin Abdullah
• Görz Alexander
• Harward Samuel
• Hasturk Cemalettin

Classifications

• F25D23/085

  Breaking strips · CPC title

• F25D2323/021

  French doors · CPC title

• F25D21/04 Primary

  Preventing the formation of frost or condensate · CPC title

• F25D23/082

  Strips · CPC title

• B29C48/022

  characterised by the choice of material · CPC title