Hybrid cable-to-board connector

• US 10,386,589 B2
• Filed: 01/29/2018
• Issued: 08/20/2019
• Est. Priority Date: 02/01/2017
• Status: Active Grant

• Current Assignee: 3M Innovative Properties Company (3M Company)
• Original Assignee: 3M Innovative Properties Company (3M Company)
• Inventors: Smith, Terry L., Bandhu, Saujit, Qiao, YunLong, Lim, Chin Hua, Koch, Barry J.
• Primary Examiner(s): Rojas, Omar R
• Application Number:
  US15/881,827
• Publication Number:
  US 20180217341A1
• Time in Patent Office: 568 Days
• Field of Search: None
• CPC Class Codes: G02B 6/3897 Connectors fixed to housings, casing, frames or circuit boards G02B6/44528 takes precedence
• CPC Class Codes: G02B 6/4214 the intermediate optical element having redirecting reflective means, e.g. mirrors, prisms for deflecting the radiation from horizontal to down- or upward direction toward a device G02B6/4246 takes precedence
• CPC Class Codes: G02B 6/423 using guiding surfaces for the alignment
• CPC Class Codes: G02B 6/426 mounting, engaging or coupling of the package to a board, a frame or a panel
• CPC Class Codes: G02B 6/4277 Protection against electromagnetic interference [EMI], e.g. shielding means shielding of electric apparatus H05K9/00, of instruments G12B17/00
• CPC Class Codes: G02B 6/428 containing printed circuit boards [PCB]
• CPC Class Codes: G02B 6/4283 with electrical insulation means
• CPC Class Codes: G02B 6/4284 of optical modules with disconnectable electrical connectors latching arms for electrical connectors H01R13/627
• CPC Class Codes: G02B 6/4292 the light guide being disconnectable from the opto-electronic element, e.g. mutually self aligning arrangements
• CPC Class Codes: G02B 6/43 Arrangements comprising a plurality of opto-electronic elements and associated optical interconnections
• CPC Class Codes: H01R 12/57 surface mounting terminals
• CPC Class Codes: H01R 12/716 Coupling device provided on the PCB
• CPC Class Codes: H01R 13/26 Pin or blade contacts for sliding co-operation on one side only for modular jack type connectors H01R24/62
• CPC Class Codes: H01R 13/405 Securing in non-demountable manner, e.g. moulding, riveting
• CPC Class Codes: H01R 2107/00 Four or more poles
• CPC Class Codes: H01R 24/64 for high frequency, e.g. RJ 45

Abstract

The present invention relates to a hybrid connector. The connector comprises an insulating housing having parallel rows of first and second terminals disposed in the housing. Each first and second terminal includes a terminal portion configured to make contact with an electrically conductive trace of a circuit board; and a mating portion configured to contact a terminal of a mating connector, the mating portions of the first terminals parallel to and facing the mating portions of the second terminals. The housing defines a cavity formed therein between the mating portions of the first and second terminals, wherein the cavity defining a cavity opening at an external surface of the housing for receiving light therefrom. An optical relay portion is disposed in the cavity, wherein the optical relay portion comprises at least one of an optical transceiver, an optical lens and an optical waveguide.

Claims

1. A connector comprising:

an electrically insulating housing comprising;

a base extending along orthogonal length (x) and width (y) directions of the connector and comprising opposing first and second major surfaces;

a wall extending from the first major surface of the base along the length direction and along a height direction (z) of the connector perpendicular to the length and width directions, the wall comprising;

opposing first and second side surfaces extending along the length direction between opposing first and second end surfaces extending along the width direction; and

a top surface extending between the first and second side surfaces and the first and second end surfaces;

parallel rows of first and second terminals disposed in the housing, each first and second terminal comprising;

a terminal portion extending along the width direction and disposed at least partially in the base and configured to make contact with an electrically conductive trace of a printed circuit board; and

a mating portion extending along the height direction and disposed at least partially in the wall, the mating portions of the first and second terminals adjacent the respective first and second side surfaces of the wall and configured to contact terminals of a mating connector, the wall defining a cavity therein between the first and second terminals; and

an optical relay portion comprising at least one of a lens, an optical waveguide and an optoelectronic device disposed in the cavity.

2. The connector of claim 1, wherein the cavity extends to and defines a first cavity opening at the top surface of the wall, and wherein the optical relay portion comprises a secondary circuit board for mounting an optical transceiver disposed in the cavity, the secondary circuit board comprising a plurality of electrically conductive traces electrically connected to at least some of the first and second terminals.

3. The connector of claim 1, wherein the optical relay portion comprises a secondary circuit board disposed adjacent to the top surface of the wall for mounting the optoelectronic device, and wherein the secondary circuit board comprises a plurality of electrically conductive traces electrically connected to at least some of the first and second terminals.

4. A connector comprising:

an electrically insulating housing comprising;

a base extending along orthogonal length (x) and width (y) directions of the connector and comprising opposing first and second major surfaces,

a wall extending from the first major surface of the base along the length direction and along a height direction (z) of the connector perpendicular to the length and width directions, the wall comprising;

opposing first and second side surfaces extending along the length direction between opposing first and second end surfaces extending along the width direction; and

a top surface extending between the first and second side surfaces and the first and second end surfaces;

parallel row of first and second terminals disposed in the housing, each first and second terminal comprising,

a terminal portion extending along the width direction and disposed at least partially in the base and configured to make contact with an electrically conductive trace of a printed circuit board, and

a mating portion extending along the height direction and disposed at least partially in the wall, the mating portions of the first and second terminals adjacent the respective first and second side surfaces of the wall and configured to contact terminals of a mating connector, the wall; and

an optical relay portion comprising an optical waveguide the optical waveguide extending from the top surface of the wall to the bottom of the connector, wherein the waveguide transmits optical signals through the connector so that they can be coupled into the printed circuit board.

5. A connector comprising:

an electrically insulating housing;

parallel rows of first and second terminals disposed in the housing, each first and second terminal comprising;

a terminal portion configured to make contact with one of an electrically conductive trace of a circuit board and an electrical conductor; and

a mating portion configured to contact a terminal of a mating connector, the mating portions of the first terminals parallel to and facing the mating portions of the second terminals,

the housing defining a cavity therein between the mating portions of the first and second terminals, the cavity defining a cavity opening at an external surface of the housing for receiving light therefrom; and

an optical relay portion disposed in the cavity and comprising at least one of an optoelectronic device, an optical lens and an optical waveguide.

6. The connector of claim 5, wherein the optical relay portion comprises a fiber connection system disposed adjacent to the external surface of the housing to couple optical signals carried by an optical cable into an optical waveguide that passes from the external surface of the housing into the housing cavity and a lens disposed within the cavity wherein the lens aligns and directs the light so that it can be coupled into a mating connector.

7. The connector of claim 5, wherein the optical relay portion comprises a fiber connection system disposed adjacent to the external surface of the housing to couple optical signals carried by an optical cable into an optical waveguide that passes from the external surface of the housing into the housing cavity so that it can be coupled into a mating connector.

8. The connector of claim 5, wherein the optical relay portion further comprises a fiber connection system disposed adjacent to the external surface of the housing to couple optical signals carried by an optical cable with the optical relay system.

9. The connector of claim 8, wherein the fiber connection system comprises at least one waveguide alignment member to align and hold the waveguides of the optical cable and a light redirecting element that directs the optical signals into the connector.

10. A connector comprising:

an electrically insulating housing;

parallel rows of first and second terminals disposed in the housing, each first and second terminal comprising;

a terminal portion configured to make contact with an electrically conductive trace of a circuit board; and

a mating portion configured to contact a terminal of a mating connector, the mating portions of the first terminals parallel to and facing the mating portions of the second terminals,

the housing defining a cavity therein between the mating portions of the first and second terminals, the cavity defining a cavity opening at an external surface of the housing for receiving light therefrom; and

an optical relay portion disposed in the cavity and comprising at least one of an optoelectronic device, an optical lens and an optical waveguide.

11. The connector of claim 10, wherein the housing comprises a wall extending from the first major surface of a base along the length direction and along a height direction (z) of the connector perpendicular to the length and width directions, the wall comprising:

opposing first and second side surfaces extending along the length direction between opposing first and second end surfaces extending along the width direction, and a top surface extending between the first and second side surfaces and the first and second end surfaces.

12. The connector of claim 11, wherein the cavity is formed in the top surface of the wall between the first and second terminals, the cavity extending to and defining a first cavity opening at the top surface of the wall.

13. The connector of either of claim 10, wherein the optical relay portion comprises a secondary circuit board is disposed in the cavity, the secondary circuit board comprises a plurality of electrically conductive traces electrically connected to at least some of the first and second terminals, and an optoelectronic device mounted on the secondary circuit board.

14. The connector of claim 10, wherein the optical relay portion comprises a secondary circuit board disposed adjacent to the top surface of the wall, and wherein the secondary circuit board comprises a plurality of electrically conductive traces electrically connected to at least some of the first and second terminals, and an optoelectronic device mounted on the secondary circuit board.

15. The connector of claim 10, wherein the optical relay portion further comprises a focal lens disposed near the optoelectronic device, wherein the focal lens focuses incoming light on the optoelectronic device.

16. The connector of claim 10, wherein the optical relay portion comprises a fiber connection system disposed adjacent to the external surface of the housing to couple optical signals carried by an optical cable into an optical waveguide that passes from the external surface of the housing into the housing cavity so that it can be coupled into a mating connector.

17. The connector of claim 10, wherein the optical relay portion further comprises a fiber connection system disposed adjacent to the external surface of the housing to couple optical signals carried by an optical cable with the optical relay portion.

18. The connector of claim 17, wherein the fiber connection system comprises at least one waveguide alignment member to align and hold the waveguides of the optical cable and a light redirecting element that directs the optical signals into the connector.

19. The connector of claim 18, wherein the light redirecting element comprises one of a reflective surface, a reflective lens, and a prism.