Patent Grant
8083541
(a) Field of the Invention
The present invention relates to a connection wire assembly applicable for a signal transmission interface, in particular to a stable and reliable flat cable connection wire assembly.
(b) Description of the Related Art
Flat cable is a common part used in electronic industry for connecting circuit boards. For example, a notebook computer adopts a flexible printed circuit board (FPCB) as a connection wire assembly for transmitting signals between an LCD screen and a main system of a notebook computer. In addition, there is another micro coaxial cable assembly which comes with high-precision of impedance and high flexibility to give a cutting edge and meet the fast changing notebook computer market. Since notebook computers gradually replace desktop computers and tend to have a thin design, the flat cable with core wires satisfies the manufacturing requirement of notebook computers and has a tendency of replacing the flexible printed circuit board (FPC).
Related flat cables generally have a structure as shown in
With reference to
Therefore, it is a primary objective of the present invention to provide a flat cable connection wire assembly applicable for a signal transmission interface with a secured and reliable structure to overcome the shortcomings of the prior art.
To achieve the foregoing objectives, the present invention provides a flat cable connection wire assembly applicable for a signal transmission interface, and the flat cable connection wire assembly comprises a flexible flat cable (FFC) and at least one connector installed at an end of the flexible flat cable, wherein the flexible flat cable includes a plurality of core wires, and the connector includes a plastic body for separating and arranging all core wires, a plurality of terminals provided for an electric connection, and at least one metal casing for supporting the flexible flat cable. More particularly, the plastic body has an open section disposed at an end corresponding to the flexible flat cable and provided for inserting and exposing each terminal, and a plurality of slots disposed at the open section for positioning each terminal, and there is a specific interval between the slots, so that a specific interval is formed between the terminals. Each core wire is soldered to fix the terminals into the slots respectively and also connecting the connector, so as to produce a flat cable connection wire assembly with a more secured and reliable structure.
Specifically, the present invention has the following advantages and effects:
1. Solder overfill will not occur easily in the manufacturing process.
2. There is no short circuit issue.
3. The invention provides a better signal transmission than the conventional single-point contact to enhance the overall quality and reliability of the connection wire assembly effectively.
4. The invention provides an excellent overall mechanical strength.
5. The invention achieves the effects of simplifying the structure of the connector significantly, reducing the overall height and saving space.
The present invention will now be described in more detail hereinafter with reference to the accompanying drawings that show various embodiments of the invention as follows.
With reference to
The flexible flat cable 40 includes a plurality of core wires 41, a rubber envelop 42 disposed individually at upper and lower positions of all core wires 41 for fixing the core wires 41. The connector 50 includes a plastic body 51 for separating and arranging all core wires 41, a plurality of terminals 53 for providing an electric connection, and at least one metal casing 52 for supporting the flexible flat cable 40, wherein the metal casing 52 can be installed at the top or the bottom of the flexible flat cable 40.
With reference to
In addition, each core wire 41 exposed from the rubber envelop 42 of the flexible flat cable 40 has a length greater than the length of each terminal 53 in the slot 514 and a width smaller than the width of the slot 514, and the width of the core wire 41 is smaller than the width of each terminal 53.
In the preferred embodiments, the plastic body 51 includes a plurality of through holes 512 for passing the terminals 53 respectively, and a plurality of fixing holes 513 disposed at another end of the flexible flat cable 40 for inserting ends of the terminals 53 respectively in order to prevent the end of each terminal 53 from being lifted up or projected out.
The flat cable connection wire assembly applicable for a signal transmission interface in accordance with the present invention can fix each core wire of the flat cable to each core wire of the connector by soldering. Such arrangement not only simplifies the structure of the connector significantly, but also enhances the overall quality and reliability of the flat cable connection wire assembly substantially.
In summation of the description, the present invention provides a better feasible flat cable connection wire assembly applicable for a signal transmission interface and complies with the patent application requirements, and thus is filed for patent application. While the invention has been described by means of specific embodiments, numerous modifications and variations could be made thereto by those skilled in the art without departing from the scope and spirit of the invention set forth in the claims.
| Number | Date | Country | Kind |
|---|---|---|---|
| 97217655 U | Oct 2008 | TW | national |
| Number | Name | Date | Kind |
|---|---|---|---|
| 6705893 | Ko | Mar 2004 | B1 |
| 7189105 | Takaku et al. | Mar 2007 | B2 |
| 7223120 | Ko | May 2007 | B2 |
| 7275955 | Ko | Oct 2007 | B2 |
| Number | Date | Country | |
|---|---|---|---|
| 20100087087 A1 | Apr 2010 | US |
