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Electronic device and flexible printed wiring board

a technology of flexible printed wiring board and electronic device, which is applied in the direction of circuit bendability/stretchability, fixed connection, coupling device connection, etc., can solve the problems of reducing convenience, no consideration of how to guide the connector along the width of the wiring board, and no means for guiding the flexible printed wiring board

Inactive Publication Date: 2010-12-02
KK TOSHIBA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The solution provides mechanical strength for secure attachment, allows for smooth connection despite misalignment, and reduces assembly resistance, enhancing the ease and reliability of attaching the flexible printed wiring board to the connector while maintaining the integrity of the coverlay film.

Problems solved by technology

However, in the above-mentioned conventional flexible printed wiring board, there is no consideration as to how to guide the connector along the width of the wiring board when the connector is engaged with the wiring board.
For example, although a guide is formed for preventing the connector from being displaced along the longitudinal axis of the connector engagement port, there is no means for guiding the flexible printed wiring board to a preset position along an axis that intersects the longitudinal axis of the connector engagement port.
Accordingly, when the flexible printed wiring board is engaged with the connector, it is necessary to pay attention not to damage the coverlay film, which degrades the convenience.

Method used

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  • Electronic device and flexible printed wiring board
  • Electronic device and flexible printed wiring board
  • Electronic device and flexible printed wiring board

Examples

Experimental program
Comparison scheme
Effect test

first embodiment

[0026]Referring now to FIGS. 1 to 8, an electronic device will be described. In the description below, the near side to the user (that is, user side) is defined as front F, the far side from the user is rear R, the left-hand side of the user is left, the right-hand side of the user is right, the upper side from the user's position is up and the lower side from the user's position is down.

[0027]As shown in FIG. 1, a portable computer 11 as an example of the electronic device of the first embodiment comprises a main unit 12, a display unit 13, and hinges 14 provided between the main unit 12 and the display unit 13. The hinges 14 support the display unit 13 so that the display unit can rotate.

[0028]As shown in FIG. 1, the display unit 13 comprises a liquid crystal display 15 as a display example, and a synthetic resin cover 16 enclosing the liquid crystal display 15.

[0029]As can be seen from FIGS. 1 and 2, the main unit 12 comprises a case 17 as an outer envelope, a keyboard 18 and a ...

second embodiment

[0053]The connector 24 is a so-called top and bottom double contacts type connector. In the second embodiment, the first contacts 61 are made to be brought into contact with conductors 31, and the second contacts 62 are made to be brought into contact with a reinforcing plate 27. However, this may be modified such that the first contacts 61 are made to be brought into contact with the reinforcing plate 27, and the second contacts 62 are made to be brought into contact with the conductors 31.

[0054]In the second embodiment, when the front end 26C of the flexible printed wiring board 23 is inserted into the connector 24, the tip of the second contact 62 enters the opening 42 of the recess portion 35. When the front end 26C of the flexible printed wiring board 23 is further forwarded, the second contact 62 is guided along the tilted surface 41A of the recess portion 35. Since in the second embodiment, the first and second contacts 61 and 62 are fixed in position, the flexible printed wi...

third embodiment

[0063]In the above-described third embodiment, each recess portion 35 includes the through hole 71 formed in the portion of the reinforcing plate 27 away from the opening 42, and formed through the reinforcing plate 27 along the thickness of the same. This structure enables the flexible printed wiring board 23 to be prevented from being unintentionally disengaged from the connector 24.

[0064]Further, when the flexible printed wiring board 23 is most deeply inserted in the connector 24 to thereby cause the second contacts 34 to be press-fitted into the through holes 71, the user can confirm that the flexible printed wiring board 23 has been correctly inserted in the connector 24. Furthermore, since in the third embodiment, the through holes 71 are provided in place of the recesses 43 of the first embodiment, it is not necessary to delicately adjust the energy of the laser and / or the number of shorts of the laser to form the recesses 43. The through holes 71 can be easily formed by dri...

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Abstract

According to one embodiment, an electronic device includes a connector, and a flexible printed wiring board having a board main body provided with a first surface with a conductor provided thereon, a second surface opposite to the first surface, and a front end contacting the connector, and a reinforcing plate contacting the second surface at the front end to reinforce the board main body. A projection is provided on the connector in contact with the flexible wiring board. The reinforcing plate includes a recess portion in which the projection is fitted. The recess portion has a space increased in size toward and opening to an end face of the reinforcing plate corresponding to the front end, and an opening provided in the end face and communicating with the space.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]This application is based upon and claims the benefit of priority from Japanese Patent Application No. 2009-127890, filed May 27, 2009, the entire contents of which are incorporated herein by reference.BACKGROUND[0002]1. Field[0003]One embodiment of the present invention relates to an electronic device provided with a flexible printed wiring board that is connected to a connector.[0004]2. Description of the Related Art[0005]Jpn. Pat. Appln. KOKAI Publication No. 10-190157 discloses an electronic device that employs a flexible printed wiring board provided with a coverlay film for protecting conductor patterns formed on the board. The flexible printed wiring board has a front portion that comprises an exposed portion at which the conductor patterns are exposed from the coverlay film, and a dam portion formed integral with the coverlay film to partition the conductor patterns. The width of the dam portion is gradually reduced toward its fro...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): H01R24/00H05K1/00H01R12/00H01R12/77H01R12/79H05K1/11
CPCH01R12/62H01R12/721H05K1/0281H05K1/118H05K3/301H05K2201/09036H05K2201/10189H05K2201/1059H05K2201/2009Y10S439/951
Inventor MATSUO, HIROYUKIKOZAI, TSUYOSHI
Owner KK TOSHIBA
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