KR20160075011A - Flexible cable with curve part - Google Patents

Flexible cable with curve part Download PDF

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Publication number
KR20160075011A
KR20160075011A KR1020140184393A KR20140184393A KR20160075011A KR 20160075011 A KR20160075011 A KR 20160075011A KR 1020140184393 A KR1020140184393 A KR 1020140184393A KR 20140184393 A KR20140184393 A KR 20140184393A KR 20160075011 A KR20160075011 A KR 20160075011A
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KR
South Korea
Prior art keywords
curved surface
surface portion
film portion
film
flexible cable
Prior art date
Application number
KR1020140184393A
Other languages
Korean (ko)
Inventor
강택형
Original Assignee
(주)우주일렉트로닉스
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Filing date
Publication date
Application filed by (주)우주일렉트로닉스 filed Critical (주)우주일렉트로닉스
Priority to KR1020140184393A priority Critical patent/KR20160075011A/en
Publication of KR20160075011A publication Critical patent/KR20160075011A/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
    • 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
    • H01B7/0807—Twin conductor or cable

Abstract

The present invention relates to a flexible cable having a curved surface portion, and the film portion is formed so as to be bent by the curved surface portion, so that a pair of connection portions provided at both ends of the film portion are arranged to be shifted from each other in the lateral direction.

Description

FLEXIBLE CABLE WITH CURVE PART < RTI ID = 0.0 >

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a flexible cable having a curved surface portion, and more particularly, to a flexible cable having a curved surface portion for changing a longitudinal direction of a film portion so that connection portions provided at both ends of the film portion are arranged to be shifted from each other To a flexible cable.

2. Description of the Related Art Generally, a thin film type flexible flat cable (FFC) is used in various electronic apparatuses such as a cellular phone, a computer, a printer, a scanner, and a monitor in order to electrically connect the components. FFC is widely used in various electronic products including video equipment due to flexibility such as bending, overlapping, folding, curling and twisting.

The conventional FFC is formed to be long along the longitudinal direction, and the first and second connecting portions are provided at both ends of the FFC, so that the first and second connecting portions are fitted to the first and second connectors. However, when the first connector and the second connector are arranged so as to be shifted in the left-right direction, the FFC can be easily bent in the up-and-down direction, The first and second connection portions are shifted in the left and right direction.

1 is a view showing an FFC having a conventional folded portion. 1, an FFC 1 having a conventional folded portion includes a film portion 2 and first and second connecting portions 8 and 9 provided at both ends of the film portion 2. The film portion 2 is formed in a straight line along the longitudinal direction and is divided into a first film portion 3, a second film portion 5 and a third film portion 7 along the longitudinal direction. A first folded portion 4 is provided between the first film portion 3 and the second film portion 5 so as to be folded at a right angle and a second folded portion 4 is provided between the second film portion 5 and the third film portion 7 A second connecting portion 8 provided at an end portion of the first film portion 3 and a second connecting portion 8 provided at an end portion of the third film portion 7 9 are not located on the same line but are shifted in the left-right direction.

The conventional FFC 1 is configured such that the film portion 2 is folded by the first and second folded portions 4 and 6 so that the first connection portion 8 and the second connection portion 9 are shifted in the left- Conductor lines (not shown) buried in the film portion 2 are also folded along the first and second folded portions 4 and 6 so that there is a possibility that disconnection or the like may occur over time .

Patent No. 20-0429435

SUMMARY OF THE INVENTION It is an object of the present invention to provide a flexible cable having a curved surface portion for changing the longitudinal direction of a film portion, To the user.

In order to achieve the above object, according to the present invention, there is provided a film forming apparatus, comprising: a film portion having a curved surface portion that is formed to be long along a longitudinal direction and has a curved shape to change its longitudinal direction; A conductive line portion having a plurality of conductive lines extended along an inner longitudinal direction of the film portion; And a pair of connection portions which are exposed to both ends of the film portion and are connected to both ends of the plurality of conductive wires.

Further, the curved surface portion is provided with a plurality of spaced apart curved surface portions along the longitudinal direction of the film portion.

The curved surface portion may include a first curved surface portion and a second curved surface portion spaced apart from each other along the longitudinal direction of the film portion and the first curved surface portion and the second curved surface portion are formed to be bent in different directions A flexible cable having a curved surface portion is provided.

 The plurality of conductors may include a first folding line portion and a second folding line portion so as to be bent in the same direction as the first folding surface portion and the second folding surface portion at positions facing the first folding surface portion and the second folding surface portion, The present invention provides a flexible cable having a curved surface portion.

A plurality of through-holes are formed on one surface of the film portion in a direction perpendicular to the longitudinal direction of the film portion. The through-holes are spaced apart from each other by a space And a curved surface portion which penetrates the flexible cable.

In addition, a matching portion of an insulating material for impedance matching is attached to one surface of the film portion, and a curved surface portion is provided.

Further, the thickness of the conductive wire is 0.022 mm to 0.15 mm, the width of the conductive wire is 0.15 mm to 5 mm, and the elongation of the conductive wire is 15% or more.

In addition, the present invention provides a flexible cable having a curved surface portion, wherein a cross section of the lead wire is round or flat, and a cross section of the connection portion is flat.

The present invention also provides a flexible cable having a curved surface portion characterized in that the distance between adjacent conductors is 0.25 mm to 5 mm.

The material of the film portion may be at least one selected from the group consisting of polyethylene terephthalate (PET), polyethylene naphthalate (PEN), polyamide (PI), polyphenylenesulfide (PPS) And polyphenylene ether (PPE), and the thickness of the film portion is 12 占 퐉 to 100 占 퐉. The present invention provides a flexible cable having a curved surface portion.

The adhesive layer may include at least one selected from the group consisting of polyester, polyamide, and polyolefine. The thickness of the adhesive layer may be 20 And a curved surface portion characterized by being in the range of 탆 to 80 탆.

Since the flexible cable having the curved surface portion according to the present invention is formed such that the film portion is bent by the curved surface portion, the pair of connection portions provided at both ends of the film portion are arranged to be shifted in the lateral direction.

In addition, a plurality of through-holes formed on one surface of the film portion is formed to penetrate a space between the conductive lines arranged along the inside of the film portion, thereby preventing interference by an external device. Further, when the connecting portion is connected to the external connector, the through hole is inserted into the through hole of the connector, so that the coupling between the connector and the cable becomes strong.

1 is a view showing an FFC having a conventional folded portion.
2 is a schematic view of a flexible cable having a curved surface according to a first preferred embodiment of the present invention.
3 is a cross-sectional view of a flexible cable having a curved surface according to a first preferred embodiment of the present invention.
4 is a schematic view of a flexible cable having a curved surface according to a second preferred embodiment of the present invention.
5 is a schematic cross-sectional view of a flexible cable having a curved surface according to a second preferred embodiment of the present invention.
6 is a schematic view of a flexible cable having a curved surface according to a third preferred embodiment of the present invention.
7 is a view schematically showing the inside of a flexible cable having a curved surface portion according to a third preferred embodiment of the present invention.
8 is a schematic view of a flexible cable having a curved surface according to a fourth preferred embodiment of the present invention.
9 is a schematic view of a flexible cable having a curved surface according to a fifth preferred embodiment of the present invention.

Hereinafter, a flexible cable having a curved surface according to a preferred embodiment of the present invention will be described in more detail with reference to the accompanying drawings.

FIG. 2 is a schematic view of a flexible cable having a curved surface according to a first preferred embodiment of the present invention. FIG. 3 is a schematic view of a flexible cable having a curved surface according to a first preferred embodiment of the present invention. Fig.

2 and 3, a flexible cable 10 having a curved surface according to a first preferred embodiment of the present invention includes a film portion 12, a lead portion 15, and a connection portion 18 .

The film portion 12 may be made of synthetic resin having insulation and flexibility and may be formed of a material such as polyethylene terephthalate (PET), polyethylene naphthalate (PEN), polyamide (PI) And may include at least one selected from polyphenylene sulfide (PPS) and polyphenylene ether (PPE). The thickness of the film portion 12 is preferably 12 占 퐉 to 100 占 퐉. The film portion 12 has a first film portion 12-1 positioned at the upper portion of the lead portion 15 and a second film portion 12-1 located at the lower portion of the lead portion 15, And a second film portion 12-2.

The film portion 12 is formed long along the longitudinal direction and has at least one curved surface portion 13 along its longitudinal direction. The curved surface portion 13 is formed in a curved shape so that the moving direction of the film portion 12 is changed. For example, the curved surface portion 13 includes a first curved surface portion 13a and a second curved surface portion 13a, And a second bent surface portion 13b. The first folded surface portion 13a is provided so that one side between the upper surface and the lower surface of the film portion 12 is bent in one direction and the second folded surface portion 13b is provided on the other side between the upper surface and the lower surface of the film portion 12 And bent in a direction opposite to the first folded surface portion 13a. Here, the bent angles of the first bent surface portion 13a and the second bent surface portion 13b may be variously varied and may be mutually the same. As a result, both end portions of the film portion 12 are not located on the same line but are shifted in the left and right direction. Both ends of the film portion 12 may be provided with an extending portion 12a extending outward from the lower surface of the film portion 12 so that the connecting portion 18 described later is guided. The extension 12a may also be coupled to an external connector (not shown). In this case, a reinforcing tape 14 having an adhesive layer is provided on the lower surface of the extended portion 12a, so that the extended portion 12a coupled with the connector can be prevented from being detached. The material of the adhesive layer may include at least one selected from the group consisting of polyester, polyamide, and polyolefin. The thickness of the adhesive layer is preferably 20 to 80 占 퐉. The thickness of the film portion 12 combined with the reinforcing tape 14 having the adhesive layer is preferably 40 占 퐉 to 180 占 퐉.

The lead wire portion 15 includes a plurality of lead wires for allowing electric power or an electric signal to flow therethrough and is configured to change its traveling direction along the curved surface portion 13 of the film portion 12. Each of the lead wires included in the lead wire portion 15 is formed along the longitudinal direction of the film portion 12, and its cross section may be formed in a round shape or a flat shape. In addition, the thickness of the conductor, that is, the cross-sectional height of the conductor may be 0.022 mm to 0.15 mm, the width of the conductor may be 0.15 mm to 5 mm, and the elongation of the conductor may be 15% . The spacing between the conductors disposed adjacent to each other may be 0.25 mm to 5 mm.

The connecting portion 18 is provided at both ends of the film portion 12 so as to be exposed to the outside of the film portion 12. To this end, And the connecting portion 18 is provided on the upper surface of the extended portion 12a. Both ends of the lead wire portion 15 are connected to a connection portion 18 provided at both ends of the film portion 12. Since both end portions of the film portion 12 are not located on the same line by the curved surface portion 13 and are shifted in the left and right direction, the pair of connecting portions 18 provided at the end of the film portion 12, Are also shifted in the left-right direction. The cross-section of the connection portion 18 may be formed in a flat shape.

As described above, in the present invention, since the film portion 12 is formed to be bent by the curved surface portion 13, the pair of connection portions 18 are arranged so as to be shifted in the left and right direction, Can be easily connected.

FIG. 4 is a schematic view of a flexible cable having a curved surface according to a second preferred embodiment of the present invention. FIG. 5 is a perspective view of a flexible cable having a curved surface according to a second preferred embodiment of the present invention. Fig.

Referring to FIGS. 4 and 5, the flexible cable 10 having the curved surface portion according to the second preferred embodiment of the present invention further includes the matching portion 19 in the first embodiment. That is, the flexible cable 10 having the curved surface portion according to the second preferred embodiment of the present invention includes the film portion 12, the lead portion 15, the connecting portion 18, and the matching portion 19. The film portion 12, the lead portion 15, and the connecting portion 18 are the same as those of the first embodiment, and a detailed description thereof will be omitted. The matching unit 19 is for impedance matching and attaches an impedance matching matching unit 19 to the outer surface of the film unit 12 on which a plurality of conductors are arranged so as to prevent malfunction or transmission loss. Since the impedance matching is a general technique, a detailed description thereof will be omitted.

FIG. 6 is a schematic view of a flexible cable having a curved surface according to a third preferred embodiment of the present invention. FIG. 7 is a cross-sectional view of a flexible cable having a curved surface according to a third preferred embodiment of the present invention. Fig.

6 and 7, the flexible cable 20 having the curved surface portion according to the third preferred embodiment of the present invention is configured to have a wide width of the film portion 22 in the first embodiment. That is, the flexible cable 20 having the curved surface portion according to the third preferred embodiment of the present invention includes the film portion 22, the lead portion 25, and the connecting portion 28.

The film portion 22 has a curved surface portion 23 having a first curved surface portion 23a and a second curved surface portion 23b so as to be elongated along the longitudinal direction and to change the traveling direction of the longitudinal direction. The width of the film portion 22 may be larger than the width of the extension portion 22a provided at both ends of the film portion 22. [ A reinforcing tape 24 of an adhesive material may be provided on the lower surface of the extension portion 22a.

The lead section (25) is configured to include a plurality of lead wires (26). These conductive lines 26 are spaced apart from each other along the inner longitudinal direction of the film portion 22 and are configured to freely change spacing of the adjacent conductive lines 26 according to the width of the film portion 22, For example, the spacing between adjacent conductors 26 may be 0.25 mm to 5 mm. As such, the conductors 26 are arranged to be spaced apart from each other, so that interference between the conductors 26 is minimized or eliminated.

The lead wire portion 25 is provided with a curved wire portion 27 so as to change its traveling direction along the curved surface portion 23 of the film portion 22. The curved line portion 27 has a first curved line portion 27a provided at a position corresponding to the first curved surface portion 23a of the film portion 22 and a second curved line portion 27a corresponding to the second curved surface portion 23b of the film portion 22 And a second bent line portion 27b provided at a position where the second bent line portion 27b is provided.

The connecting portion 28 is provided in the extension portion 22a of the film portion 22 and is connected to the end portion of the lead portion 25. [

8 is a schematic view of a flexible cable having a curved surface according to a fourth preferred embodiment of the present invention.

8, the flexible cable 20 having the curved surface portion according to the fourth preferred embodiment of the present invention is formed so that the through hole 22b is formed on the upper surface of the film portion 22 in the third embodiment . That is, the flexible cable 20 having the curved surface portion according to the fourth preferred embodiment of the present invention includes the film portion 22, the lead portion 25, and the connecting portion 28.

A plurality of through holes 22b may be provided in the direction perpendicular to the longitudinal direction of the film portion 22. [ The through hole 22b is configured to pass through from the upper surface of the film portion 22 in a downward direction. At this time, since the plurality of conductive lines 26 provided along the inside of the film portion 22 are spaced apart from each other, the plurality of through holes 22b penetrate the space between the plurality of conductive lines 26. [ The through hole 22b has an effect of preventing the interference by an external device by adjusting the conductance of the wires 26. [ The through hole 22b has an effect that when the connecting portion 28 is connected to the external connector, the engaging projection of the connector is inserted into the through hole 22b so that the coupling between the connector and the cable 20 becomes firm . In this case, the through hole 22b is provided at a position close to the end of the film portion 22.

9 is a schematic view of a flexible cable having a curved surface according to a fifth preferred embodiment of the present invention.

Referring to FIG. 9, the flexible cable 20 having the curved surface portion according to the fifth preferred embodiment of the present invention further includes the matching portion 29 in the third embodiment. That is, the flexible cable 20 having the curved surface portion according to the fifth preferred embodiment of the present invention includes the film portion 22, the lead portion 25, the connecting portion 28, and the matching portion 29. The film portion 22, the lead portion 25, and the connecting portion 28 are the same as those of the third embodiment, and a detailed description thereof will be omitted. The matching unit 29 is for impedance matching and attaches an impedance matching matching unit 29 to the outer surface of the film unit 22 on which a plurality of conductive lines 26 are arranged so as to prevent malfunction or transmission loss .

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit and scope of the invention as defined in the appended claims. It should be understood that the technical idea belonging to the scope of the claims also belongs to the present invention.

10: Flexible cable 12: Film part
12a: extension part 13: curved surface part
13a: first bent surface portion 13b: second bent surface portion
14: reinforcing tape 15:
18: connecting part 19: matching part
20: Flexible cable 22: Film part
22a: extension part 22b: through hole
23: Curved surface portion 23a: First curved surface portion
23b: second bent surface portion 24: reinforcement tape
25: lead 26: lead
27: a curved line portion 27a: a first bent line portion
27b: second bent portion 28: connecting portion
29:

Claims (11)

A film portion having a curved surface portion that is formed to be long along the longitudinal direction and has a curved shape so as to change the longitudinal direction of the film portion;
A conductive line portion having a plurality of conductive lines extended along an inner longitudinal direction of the film portion; And
And a pair of connection portions provided to both ends of the film portion so as to be exposed to the outside and connected to both ends of the plurality of conductive wires.
The method according to claim 1,
Wherein the curved surface portion is provided in a state where a plurality of curved surface portions are spaced apart from each other along a longitudinal direction of the film portion.
The method according to claim 1,
Wherein the curved surface portion includes a first curved surface portion and a second curved surface portion spaced apart from each other along a longitudinal direction of the film portion, and the first curved surface portion and the second curved surface portion are formed to be bent in different directions A flexible cable having a curved surface portion.
The method of claim 3,
The plurality of lead wires may include a first folding line portion and a second folding line portion at a position opposite to the first folding surface portion and the second folding surface portion so as to be bent in the same direction as the first folding surface portion and the second folding surface portion Wherein the flexible cable has a curved surface portion.
The method according to claim 1,
A plurality of the conductors are arranged in a state of being spaced apart from each other,
Wherein a plurality of through holes are formed on one side of the film portion in a direction perpendicular to the longitudinal direction of the film portion, the through holes passing through a space between the plurality of spaced apart conductive wires, .
The method according to claim 1,
And a matching portion of an insulating material for impedance matching is attached to one surface of the film portion.
The method according to claim 1,
Wherein the thickness of the conductive wire is 0.022 mm to 0.15 mm, the width of the conductive wire is 0.15 mm to 5 mm, and the elongation of the conductive wire is 15% or more.
The method according to claim 1,
Wherein a cross section of the conductor is a round or flat shape and the cross section of the connection is a flat shape.
The method according to claim 1,
And a distance between the adjacent conductors is 0.25 mm to 5 mm.
The method according to claim 1,
The material of the film portion may be at least one selected from the group consisting of polyethylene terephthalate (PET), polyethylene naphthalate (PEN), polyamide (PI), polyphenylenesulfide (PPS), and polyphenylene ether Ether: PPE).
Wherein the thickness of the film portion is 12 占 퐉 to 100 占 퐉.
The method according to claim 1,
Wherein an adhesive layer is provided on a lower end of the film portion, and the adhesive layer comprises at least one selected from the group consisting of polyester, polyamide, and polyolefin,
And the thickness of the adhesive layer is 20 占 퐉 to 80 占 퐉.
KR1020140184393A 2014-12-19 2014-12-19 Flexible cable with curve part KR20160075011A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023199214A1 (en) * 2022-04-12 2023-10-19 Graphenaton Technologies Sa Conductive strip

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200429435Y1 (en) 2006-08-11 2006-10-23 한국에이.비이.엠.건설 주식회사 Flat cable

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200429435Y1 (en) 2006-08-11 2006-10-23 한국에이.비이.엠.건설 주식회사 Flat cable

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023199214A1 (en) * 2022-04-12 2023-10-19 Graphenaton Technologies Sa Conductive strip

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