KR101134994B1 - Contact folding type flexible flat cable and connector manufacturing method with the same - Google Patents

Contact folding type flexible flat cable and connector manufacturing method with the same Download PDF

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Publication number
KR101134994B1
KR101134994B1 KR1020100101921A KR20100101921A KR101134994B1 KR 101134994 B1 KR101134994 B1 KR 101134994B1 KR 1020100101921 A KR1020100101921 A KR 1020100101921A KR 20100101921 A KR20100101921 A KR 20100101921A KR 101134994 B1 KR101134994 B1 KR 101134994B1
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KR
South Korea
Prior art keywords
film layer
terminal
cable
insulating film
point
Prior art date
Application number
KR1020100101921A
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Korean (ko)
Inventor
김헌균
장다원
Original Assignee
(주)우주일렉트로닉스
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Priority to KR1020100101921A priority Critical patent/KR101134994B1/en
Application granted granted Critical
Publication of KR101134994B1 publication Critical patent/KR101134994B1/en

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/04—Flexible cables, conductors, or cords, e.g. trailing cables
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/08—Flat or ribbon cables
    • H01B7/0838—Parallel wires, sandwiched between two insulating layers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/08—Flat or ribbon cables
    • H01B7/0861—Flat or ribbon cables comprising one or more screens
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
    • H01R12/50—Fixed connections
    • H01R12/59—Fixed connections for flexible printed circuits, flat or ribbon cables or like structures
    • H01R12/592—Fixed connections for flexible printed circuits, flat or ribbon cables or like structures connections to contact elements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
    • H01R43/28—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for wire processing before connecting to contact members, not provided for in groups H01R43/02 - H01R43/26

Abstract

PURPOSE: A terminal-foldable flexible flat cable and a connector manufacturing method using the same are provided to prevent damage to a coating layer by being prevented from being pushed due to a signal-transmitting contact of an opposite connector. CONSTITUTION: A shielding layer(13) is formed on the top surface of a cable. A second insulation film layer(12) is formed under the shielding layer. A straight angle conductor(10) is placed under the second insulation film layer. A first insulation film layer(11) is placed under the straight angle conductor. A terminal(60) has a terminal initial point(61) separated from one end(50) of the cable and a terminal end point(62) separated from one end of the cable. The straight angle conductor is exposed by the elimination of the shielding layer and the second insulation film layer.

Description

Contact Folding Type Flexible Flat Cable And Connector Manufacturing Method With The Same}

The present invention relates to a terminal-folded flexible flat cable and a method for manufacturing a connector using the same, and more particularly, to a flexible flat cable so that the terminal portion can be folded precisely without any tools. It relates to a method of manufacturing a connector using.

Recently, in electronic devices for data communication or display, signals used for high-capacity data transmission and ultra-high quality are increasingly using high frequencies. Malfunctions and signal distortions caused by external noise and EMI electromagnetic waves in transmission cables for transmitting such signals are increased. In order to solve the problem, flexible flat cable (FFC) having a shielding layer on the outside and a flexible printed circuit board (FPCB) having a partially cable form are used. The shielding layer is designed to protect the cable from crosstalk and electromagnetic interference to ensure the quality of data transmission, and to maintain characteristic impedance, which is an electrical transmission characteristic.

In addition, while the signals used in the electronic devices are diversified, the miniaturization of the electronic devices and the connectors used therein are required to be miniaturized, and the transmission cables are narrow enough to have a pitch of at least 0.2 mm between each transmission line. It is pitched.

The conventional flexible flat cable has a structure as shown in FIG. 1, and arranges the flat conductor 10 on the first insulating film 11 on the uppermost surface, and adjusts the impedance of the first insulating film 11 and the cable on the lower surface thereof. The second insulating film 12 for reinforcement and the reinforcement film 15 for reinforcement not to bend when handling the cable by hand, the bottom surface is made of a shield layer 13 made of aluminum foil or copper foil.

In the drawings of the present application, the thinly-hatched and gray-hatched portion is an adhesive layer, and each layer is bonded by an adhesive layer, and it is natural that an adhesive layer is present between the layers, and hot pressing between films without the adhesive layer is performed. Since the cable can also be formed through or the like, the description of the presence or absence of the adhesive layer between the layers is omitted in order to explain the technical idea of the present invention more briefly.

When the conventional flexible flat cable is installed and used in the connector 100 as shown in FIG. 2, the flat conductor 10 is connected to the signal transmission contact 201 of the other connector, and the ground contact 202 of the other connector is connected. ), The shielding layer 13 is connected.

However, in the case of using such a conventional flexible flat cable, a force is applied to the end 10 'of the flat conductor 10 by the signal transmission contact 201 of the other connector when the connector is coupled with the other connector. 1 is often pushed or dropped from the insulating film (11).

In addition, if the connector is repeatedly combined and dismantled, the end 10 'of the flat conductor contacting the signal transmission contact 201 of the other connector may be damaged by the plated layer of the flat conductor 10 by the signal transmission contact 201. It happens often.

In order to solve this problem, a connector such as WO2010 / 037979 is disclosed, which will be described below with reference to FIG. 3.

The flexible flat cable disclosed in FIG. 3 includes an insulating film 20, a flat conductor 10, and a shielding layer 13. The flexible flat cable is installed in the connector so that the portion from which the shielding layer 13 is removed is folded through the reinforcement part 120 of the connector so that the end thereof is fitted into the accommodating part 130 provided in the connector.

In order for the portion from which the shielding layer 13 is removed to be folded through the reinforcement part 120, a flexible reinforcement film layer may not be provided on the flexible flat cable, and thus it is very difficult to precisely fold the narrow-pitched flexible flat cable. It is also not easy to insert the end into the housing 130.

In addition, since the cutout portion 10 " of the flat conductor is directly connected to the contact portion 10 '" that comes into contact with the signal transmission contact of the other connector and is exposed to the air, corrosion occurs through the unplated cut surface. And there was a problem that the contact portion (10 ''') is damaged by this corrosion.

The present invention has been made to solve the problems of the prior art as described above, when used in conjunction with the connector when the contact signal transmission contact of the other connector does not occur, the plating layer is not damaged, is resistant to corrosion It is an object of the present invention to provide a flexible flat cable and a connector assembly method using the same.

Terminal folded type flat cable of the present invention

In the terminal folded type flat flat cable for folding the terminal portion,

Form a shielding layer on the top surface,

Forming a second insulating film layer under the shielding layer,

Place a flat conductor below the second insulating film layer,

Disposing a first insulating film layer under the flat conductor;

A terminal part starting point at a position spaced apart from one end of the cable, and a terminal part end point spaced apart from the terminal part starting point at one end of the cable, and forming a terminal part from which a shielding layer and a second insulating film layer are removed to expose a flat conductor To;

A first end portion is positioned between the terminal end point or between the terminal end start point and the end point, and a reinforcing film layer having a second end at a position farther apart from one end of the cable than the terminal end point is under the first insulating film layer. Characterized in that provided.

A third insulating film layer may be further disposed between the second insulating film layer and the flat conductor, and the third insulating film layer may also be removed from the terminal to expose the flat conductor.

It is also preferable to form a separate cover film layer on the shielding layer of the remaining portion other than the end of the cable.

The connector manufacturing method using the terminal folded type flat cable of the present invention

Form a shielding layer on the top of the cable,

Forming a second insulating film layer under the shielding layer,

Place a flat conductor below the second insulating film layer,

Disposing a first insulating film layer under the flat conductor;

A terminal part starting point at a position spaced apart from one end of the cable, and a terminal part end point spaced apart from the terminal part starting point at one end of the cable, and forming a terminal part from which a shielding layer and a second insulating film layer are removed to expose a flat conductor ;

A first end portion is positioned between the terminal end point or between the terminal end start point and the end point, and a reinforcing film layer having a second end at a position farther apart from one end of the cable than the terminal end point is under the first insulating film layer. Preparing a terminal-folded flexible flat cable;

Folding a portion from the first end to one end of the cable toward the reinforcement film layer based on the first end of the reinforcement film layer;

And inserting the folded flat cable into the cable insertion groove of the connector.

Another method of manufacturing a connector using a terminal folded type flat cable of the present invention,

Form a shielding layer on the top of the cable,

Forming a second insulating film layer under the shielding layer,

A third insulating film layer is formed below the second insulating film layer,

Place a flat conductor under the third insulating film layer,

Disposing a first insulating film layer under the flat conductor;

The terminal part has a start point at a position spaced from one end of the cable, and a terminal end point spaced apart from the start point of the terminal at one end of the cable, and removes the shielding layer and the second and third insulating film layers so that the flat conductor is exposed. Forms;

A first end portion is positioned between the terminal end point or between the terminal end start point and the end point, and a reinforcing film layer having a second end at a position farther apart from one end of the cable than the terminal end point is under the first insulating film layer. Preparing a terminal-folded flexible flat cable;

Folding a portion from the first end to one end of the cable toward the reinforcement film layer based on the first end of the reinforcement film layer;

And inserting the folded flat cable into the cable insertion groove of the connector.

Terminal folded type flexible flat cable prepared in the above step is also preferably to form a separate cover film layer on the shielding layer of the remaining portion other than the end portion.

According to the present invention, when used by being coupled to the connector, there is no sliding phenomenon due to the signal transmission contact of the counterpart connector, the plating layer is not damaged, resistant to corrosion, and the assembly with the connector is easy.

1 is a cross-sectional view showing the structure of a conventional flexible flat cable.
2 is a cross-sectional view showing a form in which a conventional flexible flat cable is mounted on a connector.
3 is a view showing another embodiment in which another conventional flexible flat cable is mounted on a connector.
Figure 4 is a cross-sectional view showing the structure of a flexible flat cable of an embodiment of the present invention.
Figure 5 is a cross-sectional view showing a folded form of the flat cable of an embodiment of the present invention.
6 is a view illustrating a process of inserting a flexible flat cable of an embodiment of the present invention into a connector.
7 is a view showing a form in which the flexible flat cable of the embodiment of the present invention is mounted on the connector.

Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings.

4 is a cross-sectional view of the terminal folded type flat cable of the present invention.

A shielding layer 13 is formed on the top surface of the cable, a second insulating film layer 12 is formed below the shielding layer 13, and a flat conductor 10 is disposed below the second insulating film layer 12. The first insulating film layer 11 is disposed below the flat conductor 10.

In addition, the terminal having a terminal start point 61 at a position spaced apart from one end 50 of the cable, and a terminal end point 62 further spaced apart from the terminal start point 61 at one end 50 of the cable, a flat conductor The terminal portion 60 from which the shielding layer 13 and the second insulating film layer 12 are removed is formed to expose 10.

A reinforcement film layer having a first end 151 at the terminal end point 62 and a second end 152 at a position farther away from one end 50 of the cable than the terminal end point 62. 15 is provided under the first insulating film layer 11. (See Figure 4 (a))

As shown in FIG. 4B, the first end 151 of the reinforcement film layer 150 may be positioned between the terminal part start point 61 and the end point 62.

In addition, although not shown, a third insulating film layer may be further disposed between the second insulating film layer and the flat conductor, in which case the third insulating film layer should be removed when the terminal portion is formed to expose the flat conductor. It will be natural.

The first to third insulating film layers are fluororesin (aka Teflon) film, polyimide film, PET film, epoxy film, urethane film, photocurable resin film latex film, etc., each film layer thickness for impedance matching It can be adjusted to an appropriate thickness.

 The shielding layer uses copper foil or aluminum foil. It is also preferable to form a separate cover film layer on the upper surface of the shielding layer except for the end side of the cable.

In addition, a flat conductor may be a copper line, a tin plated copper line, a silver plated copper line, or an aluminum line.

The reinforcing film layer may be formed using a material that is harder and harder than the film forming the first to third insulating film layers.

When the flexible flat cable of FIG. 4 is folded along the first end 151 of the reinforcing film layer, it is possible to precisely fold the shape as shown in FIG. 5, whereby the flat conductors of the narrow pitch are precisely arranged according to the design requirements. It becomes possible.

Since the shielding layer 13 and the second insulating film layer 12 are formed from the one end 50 of the cable to the start point 61 of the terminal, even if the flat conductor exposed at the end of the cable is corroded, the cable has no adverse effect on the terminal. And the plating layer may not be damaged.

Since the flexible flat cable folded as shown in FIG. 5 has a reinforcing film layer 15 formed at the tip thereof, it is easier to insert into the cable insertion groove 110 of the connector 100 as shown in FIG. Or deformation is suppressed.

7 is a cross-sectional view of the connector 100 into which the flexible flat cable of the present invention is inserted. The flat conductor 10 is connected to the signal transmission contact 201 of the other connector according to the position of the reinforcement film layer, and the other terminal is grounded. The shielding layer 13 can be arranged to be connected to the dragon contact 202.

According to the arrangement shape of the flat conductor, when the coupler is used by being coupled to the connector, the sliding phenomenon is not caused by the signal transmission contact of the other connector.

10 flat conductor 11 first insulating film layer 12 second insulating film layer
13: shielding layer 15: reinforcing film layer

Claims (6)

In the terminal folded type flat flat cable for folding the terminal portion,

Form a shielding layer on the top surface,
Forming a second insulating film layer under the shielding layer,
Place a flat conductor below the second insulating film layer,
Disposing a first insulating film layer under the flat conductor;

A terminal part starting point at a position spaced apart from one end of the cable, and a terminal part end point spaced apart from the terminal part starting point at one end of the cable, and forming a terminal part from which a shielding layer and a second insulating film layer are removed to expose a flat conductor To;
A first end portion is positioned between the terminal end point or between the terminal end start point and the end point, and a reinforcing film layer having a second end at a position farther apart from one end of the cable than the terminal end point is under the first insulating film layer. Terminal folded type flat flat cable, characterized in that provided.
The method of claim 1,
The third insulation film layer is further disposed between the second insulation film layer and the flat conductor, and the terminal portion of the flexible flat cable, characterized in that to remove the third insulation film layer to expose the flat conductor.
delete Form a shielding layer on the top surface,
Forming a second insulating film layer under the shielding layer,
Place a flat conductor below the second insulating film layer,
Disposing a first insulating film layer under the flat conductor;
A terminal part starting point at a position spaced apart from one end of the cable, and a terminal part end point spaced apart from the terminal part starting point at one end of the cable, and forming a terminal part from which a shielding layer and a second insulating film layer are removed to expose a flat conductor; ;
A first end portion is positioned between the terminal end point or between the terminal end start point and the end point, and a reinforcing film layer having a second end at a position farther apart from one end of the cable than the terminal end point is under the first insulating film layer. Preparing a terminal-folded flexible flat cable;

Folding a portion from the first end to one end of the cable toward the reinforcement film layer based on the first end of the reinforcement film layer;

A connector manufacturing method using a terminal-folded flexible flat cable comprising the step of inserting a folded flexible flat cable into the cable insertion groove of the connector.
Form a shielding layer on the top surface,
Forming a second insulating film layer under the shielding layer,
A third insulating film layer is formed below the second insulating film layer,
Place a flat conductor under the third insulating film layer,
Disposing a first insulating film layer under the flat conductor;
The terminal part has a start point at a position spaced from one end of the cable, and a terminal end point spaced apart from the start point of the terminal at one end of the cable, and removes the shielding layer and the second and third insulating film layers so that the flat conductor is exposed. Forms;
A first end portion is positioned between the terminal end point or between the terminal end start point and the end point, and a reinforcing film layer having a second end at a position farther apart from one end of the cable than the terminal end point is under the first insulating film layer. Preparing a terminal-folded flexible flat cable;

Folding a portion from the first end to one end of the cable toward the reinforcement film layer based on the first end of the reinforcement film layer;

A connector manufacturing method using a terminal-folded flexible flat cable comprising the step of inserting the folded flexible flat cable into the cable insertion groove of the connector.
delete
KR1020100101921A 2010-10-19 2010-10-19 Contact folding type flexible flat cable and connector manufacturing method with the same KR101134994B1 (en)

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Application Number Priority Date Filing Date Title
KR1020100101921A KR101134994B1 (en) 2010-10-19 2010-10-19 Contact folding type flexible flat cable and connector manufacturing method with the same

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20080003254A (en) * 2006-06-30 2008-01-07 니혼앗짜쿠단시세이소 가부시키가이샤 A pair of flat-type flexible cable connectors and harness of flat-type flexible cable
JP2009266447A (en) 2008-04-23 2009-11-12 Funai Electric Co Ltd U-shaped light emitting tube device
WO2010037979A1 (en) 2008-10-01 2010-04-08 Axon'cable Connection assembly and system for connecting a planar cable to a base, and method for making same

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20080003254A (en) * 2006-06-30 2008-01-07 니혼앗짜쿠단시세이소 가부시키가이샤 A pair of flat-type flexible cable connectors and harness of flat-type flexible cable
JP2009266447A (en) 2008-04-23 2009-11-12 Funai Electric Co Ltd U-shaped light emitting tube device
WO2010037979A1 (en) 2008-10-01 2010-04-08 Axon'cable Connection assembly and system for connecting a planar cable to a base, and method for making same

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