Device panel with in-molded applique

• US 5,721,666 A
• Filed: 01/11/1996
• Issued: 02/24/1998
• Est. Priority Date: 02/28/1995
• Status: Expired due to Fees

• Current Assignee: Master Home Products Incorporated
• Original Assignee: Master Molded Products Corporation (Quantum Plastics LLC)
• Inventors: Girard, Leland K.
• Primary Examiner(s): Tolin, Gerald P.
• Application Number:
  US08/583,967
• Time in Patent Office: 775 Days
• Field of Search: 174/52.1, 174/52.2, 174/52.3, 200/85 R, 200/85 A, 200/86 R, 200/86.5, 200/292, 200/296, 200/512, 200/517, 200/341, 200/310, 200/362.2, 248/27.1, 264/129, 264/132, 264/240, 264/241, 264/273, 264/274, 307/10.1, 307/119, 307/140, 340/573, 340/665, 340/666, 428/77, 428/195, 428/202, 428/332, 428/337, 439/544, 439/548, 439/620, 439/716-719, 361/627, 361/628, 361/631, 361/641, 361/643, 361/644, 361/647, 361/789, 361/792, 361/795, 361/807, 361/809, 361/810
• US Class Current: 361/627
• CPC Class Codes: B29C 33/0077 characterised by the configuration of the mould filling gate mixing chambers situated in the mould opening B29B7/7471; accessories for connecting the mould filling gate with the filling spout
• CPC Class Codes: B29C 70/78 Moulding material on one side only of the preformed part
• CPC Class Codes: F24C 7/082 on ranges, e.g. control panels, illumination
• CPC Class Codes: H01H 13/702 with contacts carried by or formed from layers in a multilayer structure, e.g. membrane switches
• CPC Class Codes: H01H 2223/002 sealed
• CPC Class Codes: H01H 2223/014 located in recess
• CPC Class Codes: H01H 2229/048 Insertion moulding
• CPC Class Codes: H02B 15/00 Supervisory desks or panels for centralised control or display

Abstract

A molded electrical circuit assembly is disclosed where the molded electrical circuit assembly comprises a device assembly overlaying at least a portion of a face applique and a backing assembly overlaying at least a portion of the device assembly. The device assembly is retained between the face applique and the backing assembly, and the backing assembly has a window formed proximate to the device assembly. Also included is a molded portion molded generally over the backing assembly and abutting at least a portion of the face applique.

Claims

1. A molded electrical circuit assembly comprising:

a face applique having a front side, a reverse side and an edge extending therebetween;

a device assembly overlying at least a portion of said reverse side,

a backing assembly having a first side overlying at least a portion of said device assembly, said device assembly being retained between said face applique and said first side of said backing assembly, said backing assembly having a second side, said backing assembly having at least one window formed therein proximate to said device assembly; and

a molded portion molded generally over said second side of said backing assembly and abutting at least a portion of said edge of said face applique.

2. A molded electrical circuit assembly as recited in claim 1, wherein said device assembly includes at least two spaced apart circuit layers with a spacer layer positioned therebetween, said spacer layer having a spacer opening formed therein, said circuit layers overlying said spacer opening on each side of said spacer layer generally defining a circuit device.

3. A molded electrical circuit assembly as recited in claim 1, wherein said device assembly includes at least one electrical component attached thereto.

4. A molded electrical circuit assembly as recited in claim 3, wherein said at least one window positioned proximate to said device assembly exposes a portion of said device assembly, said window positioned over said at least one electrical component and having a perimeter spaced away from an outer edge of said electrical component.

5. A molded electrical circuit assembly as recited in claim 1, said backing assembly further comprising a primary backing panel overlying said circuit layer and a secondary backing panel overlying said primary backing panel, said molded portion being positioned over said secondary backing panel.

6. A molded electrical circuit assembly as recited in claim 5, said primary backing panel having an opening formed therein generally in the area of said device assembly, said secondary backing panel overlying said primary backing panel and extending over said opening in said primary backing panel defining said window.

7. A molded electrical circuit assembly as recited in claim 1, said backing assembly further comprising a backing panel having an open ended cavity formed in said first side of said backing panel, said open ended cavity being positioned with a open end thereof in facing orientation relative to said device assembly and overlying said device assembly, said open ended cavity positioned over said device assembly defining said window.

8. A molded electrical circuit assembly as recited in claim 1, wherein at least a portion of said backing assembly extends away from a perimeter of said face applique defining a lip, said molded portion being molded over at least a portion of said lip for at least partially encapsulating said backing assembly in said molded portion.

9. A molded electrical circuit assembly as recited in claim 8, wherein said molded portion overlying said lip is fused to said perimeter of said face applique.

10. A molded electrical circuit assembly comprising:

a face applique having a first side, a second side being positioned opposite said first side, and an edge extending therebetween;

a device assembly overlying at least a portion of said second side, said device assembly including a circuit layer and at least one electrical component coupled to said circuit layer;

a backing assembly having a first side overlying at least a portion of said device assembly and a reverse side, said device assembly being retained between said face applique and said first side of said backing assembly, said backing assembly further including a primary backing panel overlying said circuit layer and a secondary backing panel overlying said primary backing panel;

said primary backing panel having an opening formed therein generally in the area of said electrical component, said secondary backing panel overlying said primary backing panel and extending over said opening in said primary backing panel defining a window therebetween in the area of said opening; and

a molded portion molded generally over said reverse side of said backing assembly and abutting at least a portion of said edge of said face applique.

11. A molded electrical circuit assembly comprising:

a face applique having a first side, a second side being positioned opposite said first side, and an edge extending therebetween;

a device assembly overlying at least a portion of said second side, said device assembly including a circuit layer and at least one electrical component coupled to said circuit layer;

a backing panel having a first side overlying at least a portion of said device assembly, said device assembly being retained between said face applique and said first side of said backing panel said backing panel having a reverse side, an open ended cavity formed in said first side of said backing panel, said open ended cavity being positioned with a open end thereof in facing orientation relative to and overlying said at least one electrical component, said open ended cavity positioned over said electrical component defining a window therebetween; and

a molded portion molded generally over said reverse side of said backing panel and abutting at least a portion of said edge of said face applique.

12. A molded electrical circuit assembly at least partially defining a panel structure, said assembly comprising:

a face applique having a first side, a second side and an edge extending therebetween;

a circuit attached to said second side of said face applique having at least one electrical component coupled to said circuit;

a backing assembly abutting said circuit attached to said second side of said face applique, at least a portion of said backing assembly being spaced away from said electrical component defining a window proximate to said at least one electrical component, said backing assembly being horizontally and vertically spaced from said electrical component to prevent direct abutting contact of said backing assembly with said circuit in the area of said electrical component;

said face applique, said circuit, and said backing assembly being oriented and attached for at least partially defining said panel structure; and

a plastic portion on said panel structure abutting and overlying said backing assembly.