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1. EP1986278 - CONNECTION STRUCTURE OF PHOTOELECTRIC FLEXIBLE WIRING BOARD, CONNECTOR AND PHOTOELECTRIC FLEXIBLE WIRING BOARD

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Claims

1. A connection structure for connecting a photoelectric flexible wiring board to a mounting board of an information processing terminal apparatus, the connection structure comprising:

a connector (40, 50); and

a photoelectric flexible wiring board (30) capable of transmitting optical

and electrical signals;
wherein the connector (40, 50) is adapted to be mounted, in use, to a mounting board (12, 22) of an information processing terminal apparatus, the connector comprising:

a resin body (41, 51), the resin body having a guide hole (42, 52) of U-shape in cross section, the guide hole being adapted to receive an end portion of the photoelectric flexible wiring board (30);

a plurality of contacts (43, 53) arranged laterally on a ceiling of the guide hole of the resin body, and

a photonic device (45, 55) provided on the ceiling of the guide hole

of the resin body;
and wherein the photoelectric flexible wiring board (30) comprises:

a plurality of electrical transmission lines (32), arranged laterally on a surface of the photoelectric flexible wiring board so as to be contactable with the respective contacts (43, 53), the electrical transmission lines having a length substantially equal to an entire length of the photoelectric flexible wiring board;

an optical transmission line (33), provided within the photoelectric flexible wiring board and having a length substantially equal to the entire length of the photoelectric flexible wiring board,

an optical signal inlet/outlet (36), provided in a surface of the end portion of the photoelectric flexible wiring board (30) so as to face the photonic device (45, 55), and

a waveguide mirror (35), disposed in an end portion of the optical transmission line (33) so as to face the optical signal inlet/outlet (36), for bending the optical waveguide at a right angle.


  2. The connection structure of claim 1, wherein

the photonic device (45, 55) is disposed at an outermost position in a direction in which the contacts (43, 53) are arranged, and

the optical transmission line (33) is disposed at an outermost position in a direction in which the electrical transmission lines (32) are arranged.


  3. The connection structure of claim 1, wherein

the connector (40, 50) further comprises a pair of projections (49, 59) respectively provided at longitudinal opposite ends of the guide hole (42, 52), and

the photoelectric flexible wiring board (30) further comprises a pair of fixing portions (39) respectively provided at opposite edges of the end portion thereof, the fixing portions being recessed for engagement with the projections (49, 59).


  4. The connection structure of claim 1, wherein

the connection structure is applied to an information processing terminal apparatus including a main body (10), a cover body (20) doubling as a display, and a hinge shaft pivotally coupling the main body to the cover body,

the main body (10) includes a main-body-side mounting board (12) serving as said mounting board and a main-body-side connector (40) serving as said connector,

the cover body (20) includes a cover-body-side mounting board (22) serving as said mounting board and a cover-body-side connector (50) serving as said connector, and

the photoelectric flexible wiring board (30) includes a first end portion receivable in a guide hole (42) of the main-body-side connector (40) and a second end portion receivable in a guide hole (52) of the cover-body-side connector (50).


  5. The connection structure of claim 1, wherein each of the contacts (43, 53) includes:

a middle portion embedded in the resin body (41, 51);

a first end portion exposed from the ceiling of the guide hole, and

a second end portion protruded from a rear surface of the resin body (41, 51) for connection to a mounting board (12, 22) of an information processing terminal apparatus, in use.


  6. The connection structure according to claim 5, wherein the photonic device (45, 55) is disposed at an outermost position in a direction in which the contacts (43, 53) are arranged.
  7. The connection structure of claim 1, wherein the photoelectric flexible wiring board (30) comprises:

a plate-like base (31) having the end portion receivable in the guide hole of the connector;

the plurality of electrical transmission lines (32), arranged laterally on a surface of the plate-like base (31) so as to be contactable with respective contacts (43, 53) of the connector (40, 50), the electrical transmission lines having a length substantially equal to the entire length of the photoelectric flexible wiring board (30);

the optical transmission line (33), provided within the plate-like base (31) and having a length substantially equal to the entire length of the photoelectric flexible wiring board (30);

the optical signal inlet/outlet (36), provided in a surface of the end portion of the plate-like base (31) so as to face the photonic device (45, 55); and

the waveguide mirror (35), disposed in the end portion of the optical transmission line (33) so as to face the optical signal inlet/outlet (36), for bending the optical waveguide at a right angle.


  8. The connection structure according to claim 7, wherein the optical transmission line (33) is disposed at an outermost position in a direction in which the electrical transmission lines (32) are arranged.
  9. The connection structure according to claim 8, wherein the plate-like base (31) of the photoelectric flexible wiring board (30) is provided on end portions thereof with pairs of fixing portions (39) for retaining the plate-like base (31) by engaging with respective pairs of projections (49, 59) provided in the guide holes (42, 52) of the connectors (40, 50).
  10. A connector (40, 50) for use in the connection structure of claim 1, the connector comprising:

a resin body (41, 51), the resin body including a guide hole (42, 52) of U-shape in cross section, the guide hole being adapted to receive an end portion of a photoelectric flexible wiring board (30);

a plurality of contacts (43, 53), arranged laterally on the ceiling of the guide hole of the resin body such that the contacts correspond to respective electrical transmission lines (32) on a surface of a photoelectric flexible wiring board (30) to which the connector is connectable, in use; and

a photonic device (45, 55), disposed on the ceiling of the guide hole of the resin body so as to face an optical signal inlet/outlet (36) in the surface of the photoelectric flexible wiring board (30),

wherein each of the contacts (43, 53) includes:

a middle portion embedded in the resin body (41, 51),

a first end portion exposed from the ceiling of the guide hole (42, 52), and

a second end portion protruded from a rear surface of the resin body (41, 51) for connection with a mounting board (12, 22) on which the connector (40, 50) is mountable, in use.


  11. The connector (40, 50) according to claim 10, wherein the photonic device (45, 55) is disposed at an outermost position in a direction in which the contacts (43, 53) are arranged.
  12. A photoelectric flexible wiring board (30) for use in the connection structure of claim 1, the photoelectric flexible wiring board comprising:

a plate-like base (31) having the end portion receivable in a guide hole (42, 52) of a connector (40, 50) to which the photoelectric flexible wiring board is connectable, in use;

a plurality of electrical transmission lines (32), arranged laterally on a surface of the plate-like base (31) so as to be contactable with respective contacts (43, 53) of a connector (40, 50) to which the photoelectric flexible wiring board is connectable, in use, the electrical transmission lines having a length substantially equal to the entire length of the photoelectric flexible wiring board (30);

an optical transmission line (33), provided within the plate-like base (31) and having a length substantially equal to the entire length of the photoelectric flexible wiring board (30);

an optical signal inlet/outlet (36), provided in a surface of the end portion of the plate-like base (31) so as to face a photonic device (45, 55) of a connector (40, 50) to which the photoelectric flexible wiring board is connectable, in use; and

a waveguide mirror (35), disposed in the end portion of the optical transmission line (33) so as to face the optical signal inlet/outlet (36), for bending the optical waveguide at a right angle, wherein the optical transmission line (33) is disposed at an outermost position in a direction in which the electrical transmission lines (32) are arranged,

wherein the plate-like base (31) is provided on end portions thereof with pairs of fixing portions (39) for retaining the plate-like base (31) by engaging with respective pairs of projections (49, 59) provided in the guide holes (42, 52) of connectors (40, 50) to which the photoelectric flexible wiring board (30) is connectable, in use.