Electrical harness connector

• US 9,818,503 B2
• Filed: 04/24/2014
• Issued: 11/14/2017
• Est. Priority Date: 05/03/2013
• Status: Active Grant

• Current Assignee: Rolls-Royce PLC (Rolls-Royce Holdings Plc)
• Original Assignee: Rolls-Royce PLC (Rolls-Royce Holdings Plc)
• Inventors: Broughton, Paul
• Primary Examiner(s): Wagner, Jenny L
• Assistant Examiner(s): McFadden, Michael P
• Application Number:
  US14/260,610
• Publication Number:
  US 20140328030A1
• Time in Patent Office: 1,300 Days
• Field of Search: 174359, 174250, 174251, 174254, 174258, 174261-268, 174 731, 174 74 R, 174 75 R, 174 77 R, 174 84 R, 174 85, 174102 R, 174103, 174105 R, 174105 B, 174107, 174109, 174102 SP, 174110 R, 174113 R, 174114 R, 174114 S, 174117 R, 174117 F, 174138 F, 174176-185, 174194, 174201, 174209-210, 361748-752, 361776, 361784-785, 361790-791, 361803-804, 439 67, 439 74, 439 75, 439329, 439369, 439492-495, 439638, 439650-655
• CPC Class Codes: F02C 7/32 Arrangement, mounting, or driving, of auxiliaries
• CPC Class Codes: F05D 2220/76 an electrical generator
• CPC Class Codes: F05D 2260/30 Retaining components in desired mutual position
• CPC Class Codes: H01B 7/0045 Cable-harnesses
• CPC Class Codes: H01R 12/52 connecting to other rigid printed circuits or like structures
• CPC Class Codes: H01R 12/613 by means of interconnecting elements
• CPC Class Codes: H05K 1/144 Stacked arrangements of planar printed circuit boards
• CPC Class Codes: H05K 1/147 at least one of the printed circuits being bent or folded, e.g. by using a flexible printed circuit H05K1/148 takes precedence
• CPC Class Codes: H05K 2201/058 Direct connection between two or more FPCs or between flexible parts of rigid PCBs
• CPC Class Codes: H05K 3/361 Assembling flexible printed circuits with other printed circuits
• CPC Class Codes: H05K 3/363 by soldering
• CPC Class Codes: Y02T 50/60 Efficient propulsion technologies, e.g. for aircraft
• CPC Class Codes: Y10T 29/49126 Assembling bases

Abstract

An electrical connection between two electrical harnesses is provided. The electrical harnesses include flexible printed circuits with embedded conductive tracks, each of which terminates in a receiving hole in a respective terminating region The terminating regions are connected together using conductive pins. The connection formation is then encapsulated by an encapsulating body formed of an insulating. The encapsulating body seals and protects the electrical connection, which is thus reliable and robust.

Claims

1. An assembly of two electrical harnesses electrically connected together, the arrangement comprising:

a first electrical harness and a second electrical harness, each electrical harness comprising a flexible printed circuit having a plurality of conductive tracks, and a terminating region at which each conductive track terminates at a receiving hole, each receiving hole being electrically connected to its respective electrical track;

a connection formation formed by the terminating regions of the two electrical harnesses and one or more pins which are arranged so that one end of each pin enters a receiving hole of one of the terminating regions and the other end of the pin enters a receiving hole of the other of the terminating regions to electrically connect the respective conductive tracks; and

an encapsulating body encapsulating the connection formation, the encapsulating body being a single, continuous body formed around the connection formation so as to continuously surround the connection formation and be in direct contact with the connection formation, including being direct contact with at least a part of the terminating regions of both of the two electrical harnesses, so as to seal the connection formation therein.

2. An assembly according to claim 1, wherein the encapsulating body is a homogeneous body formed around the connection formation.

3. An assembly according to claim 1, wherein the encapsulating body is a single, continuous, body formed around the connection formation.

4. An assembly according to claim 1, wherein the encapsulating body forms a hermetic seal around the connection formation.

5. An assembly according to claim 1, wherein the encapsulating body is formed from a mouldable insulating material.

6. An assembly according to claim 1, wherein the encapsulating body is formed from a mouldable plastic.

7. An assembly according to claim 1, wherein an outer surface of the assembly is formed by the encapsulating body.

8. An assembly according to claim 1, wherein the encapsulating body comprises a first aperture through which the first electrical harness exits and a second aperture through which the second electrical harness exits as they extend away from their respective terminating regions.

9. An assembly according to claim 1, wherein the connection formation has a substantially planar retaining body which holds the pins in fixed positions relative thereto, the ends of each pin projecting from opposing sides of the body.

10. An assembly according to claim 1, wherein substantially the whole of the inner surface of each receiving hole is coated with an electrically conducting layer.

11. An electrical raft comprising a rigid material having embedded therein an assembly according to claim 1.

12. An electrical raft according to claim 11, wherein the rigid material is a rigid composite material.

13. A gas turbine engine having an electrical system comprising an assembly according to claim 1.

14. A gas turbine engine having an electrical system comprising an electrical raft according to claim 11.

15. A method of electrically connecting two electrical harnesses together, each electrical harness comprising a flexible printed circuit having a plurality of conductive tracks, the method comprising:

forming a terminating region for each electrical harness at which each conductive track terminates at a receiving hole, each receiving hole being electrically connected to its respective electrical track;

electrically connecting the receiving holes of one electrical harness to the receiving holes of the other electrical harness using one or more pins, one end of each pin entering a receiving hole of one of the terminating regions and the other end of each pin entering a receiving hole of the other of the terminating regions so as to form a connection formation; and

encapsulating the connection formation by surrounding the connection formation with an insulating material in the form of a single, continuous body formed around the connection formation that is in direct contact with the connection formation, including being in direct contact with at least a part of the terminating regions of both of the two electrical harnesses, thereby sealing the connection formation therein.

16. A method of electrically connecting two electrical harnesses together according to claim 15, wherein the step of encapsulating the connection formation comprises injection moulding the insulating material around the connection formation.