CN115313073A - Film flat cable interface structure with circuit switching piece arranged on surface of inserted golden finger - Google Patents
Film flat cable interface structure with circuit switching piece arranged on surface of inserted golden finger Download PDFInfo
- Publication number
- CN115313073A CN115313073A CN202211131282.XA CN202211131282A CN115313073A CN 115313073 A CN115313073 A CN 115313073A CN 202211131282 A CN202211131282 A CN 202211131282A CN 115313073 A CN115313073 A CN 115313073A
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- China
- Prior art keywords
- flat cable
- slot
- circuit switching
- interface structure
- cable interface
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/11—Printed elements for providing electric connections to or between printed circuits
- H05K1/117—Pads along the edge of rigid circuit boards, e.g. for pluggable connectors
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- 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
- H01R12/51—Fixed connections for rigid printed circuits or like structures
- H01R12/55—Fixed connections for rigid printed circuits or like structures characterised by the terminals
- H01R12/57—Fixed connections for rigid printed circuits or like structures characterised by the terminals surface mounting terminals
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- 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
- H01R12/70—Coupling devices
- H01R12/71—Coupling devices for rigid printing circuits or like structures
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Coupling Device And Connection With Printed Circuit (AREA)
Abstract
The invention discloses a thin film flat cable interface structure with a circuit switching sheet arranged on the surface of a plug-in golden finger, which comprises a flat cable interface body, a circuit switching sheet and thermosetting conductive particle glue; the flat cable interface body is provided with flat cable conducting wires and flat cable conducting contacts connected with the flat cable conducting wires; the circuit switching piece comprises an exposed surface and a binding surface, the exposed surface is provided with an exposed surface conductive contact, the binding surface is provided with a binding surface conductive contact, and the exposed surface conductive contact and the binding surface conductive contact are connected in series and conducted through a conductive through hole; the thermosetting conductive particle adhesive is used for being attached and connected with the flat cable conductive contact on the flat cable interface body and the attachment surface conductive contact of the circuit switching piece. The invention can realize the electrical connection between the circuit switching sheet and the thin film circuit on the flat cable interface body, can realize the structural fixation between the flat cable and the circuit switching sheet, and can prevent the contact oxidation failure of the conductive contact between the flat cable and the binding surface of the circuit switching sheet and the air.
Description
Technical Field
The invention relates to the field of plug-in flat cable interfaces, in particular to a thin film flat cable interface structure with a circuit switching piece arranged on the face of a plug-in golden finger.
Background
The existing common plug-in flat cable on the market is generally made by etching a copper circuit on a PI (polyimide) substrate or other film substrates, and the plug-in gold finger surface of the plug-in flat cable needs to be plated with gold to realize plug-in resistance and oxidation resistance, so that the flat cable has extremely high cost; the wires are printed by conductive carbon paste or conductive silver paste on a PET or other film base materials, or tinned and aluminized wires are manufactured, the contact points of the wires made of the flat cable conductive materials extending to the insertion port are not resistant to oxidation, poor in adhesion force and scratch-resistant, and the wires are easily scratched or scraped by a contact piece in the slot when being directly inserted into the insertion connector, so that poor contact is caused, and the reliability is poor.
In the patent CN101719606A (flexible circuit patch for output and input interface of thin film circuit board) of the taizhen science and technology (shenzhen), a circuit patch is disposed on a gold finger contact surface of a thin film circuit board interface, but in the patent technology, a bonding surface of the circuit patch is in direct contact with a thin film circuit substrate without glue, and contact connection is realized by means of insertion extrusion force of a flat cable plug connector, so that the contact reliability is not high, and a contact between bonding contact surfaces of the flat cable plug connector is in contact with air, and is easy to be oxidized and fail.
Accordingly, the prior art is deficient and needs improvement.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the film flat cable interface structure can realize the electrical connection between a circuit switching piece and a film circuit on a flat cable interface body, can realize the structural fixation between the flat cable and the circuit switching piece, can also prevent the contact oxidation failure of a conductive contact between the flat cable and a circuit switching piece binding surface and air, has lower material cost and manufacturing cost, small area and low cost of the circuit switching piece, resists scratch and plugging, has simple structure and high reliability, can be compatible with various film flexible flat cable plugging connectors, and can be widely applied to plugging golden finger surfaces for arranging the circuit switching piece.
The technical scheme of the invention is as follows: a thin film flat cable interface structure with a circuit switching piece arranged on the surface of an inserted golden finger comprises a flat cable interface body, the circuit switching piece and thermosetting conductive particle glue arranged between the flat cable interface body and the circuit switching piece; the flat cable interface body is provided with a flat cable conducting wire and a flat cable conducting contact connected with the flat cable conducting wire; the circuit switching piece comprises an exposed surface and a binding surface, the exposed surface is provided with an exposed surface conductive contact, the binding surface is provided with a binding surface conductive contact, and the exposed surface conductive contact and the binding surface conductive contact are connected in series and conducted through a conductive through hole; the thermosetting conductive particle adhesive is used for being attached and connected with the flat cable conductive contact on the flat cable interface body and the attachment surface conductive contact of the circuit switching piece.
By applying the technical scheme, in the thin film flat cable interface structure, the flat cable interface body is a flexible flat cable interface body.
By applying the above technical solutions, in the thin film flat cable interface structure, the thin film flat cable interface structure is used for being inserted into the slot of the flat cable plug-in connector, and the thickness of the thin film flat cable interface structure is compatible with and equal to the thickness supported by the slot of the flat cable plug-in connector inserted into the thin film flat cable interface structure.
By applying the technical scheme, in the thin film flat cable interface structure, after the thin film flat cable interface structure is inserted into the slot of the flat cable plug-in connector, the exposed surface conductive contact is in contact connection with the conductive contact in the slot of the flat cable plug-in connector.
By applying the above technical solutions, in the thin film cable interface structure, the thermosetting conductive particle glue includes one or more of ACF type thermosetting conductive particle glue and ACP type thermosetting conductive particle glue.
By applying the technical scheme, in the thin film flat cable interface structure, after the thin film flat cable interface structure is inserted into the slot of the flat cable plug-in connector, the thermosetting conductive particle adhesive and the circuit adapter sheet are arranged in the slot area of the slot.
By applying the above technical solutions, in the thin film flat cable interface structure, after the thin film flat cable interface structure is inserted into the slot of the flat cable plug-in connector, the thermosetting conductive particle adhesive and the circuit switching sheet are disposed in the slot area of the slot, and the circuit switching sheet further extends out of the slot area of the slot.
By applying the technical scheme, in the thin film flat cable interface structure, after the circuit adapter sheet extends out of the slot area of the slot, the part outside the slot area is attached and fixed with the flat cable interface body in a sticking mode.
By applying the technical scheme, in the film flat cable interface structure, after the circuit adapter sheet extends out of the slot area of the slot, the part outside the slot area is fixedly attached to the flat cable interface body in a double-sided adhesive adhering mode.
By applying the technical scheme, in the thin film flat cable interface structure, the exposed surface conductive contact and the conductive through hole and the binding surface conductive contact and the conductive through hole are respectively connected in series through the adapter sheet wires.
The invention has the beneficial effects that: according to the invention, the thermosetting conductive particle adhesive is arranged between the flat cable interface body and the circuit switching piece, and the exposed surface conductive contact of the circuit switching piece and the binding surface conductive contact are in series conduction through the conductive through hole, so that the electrical connection between the circuit switching piece and the thin film circuit on the flat cable interface body can be realized, the structural fixation between the flat cable interface body and the circuit switching piece can be realized, and the contact oxidation failure between the conductive contact between the flat cable interface body and the binding surface of the circuit switching piece and air can be prevented. Moreover, the flat cable adopting the structure can be made of materials with low cost and low strength, such as conductive carbon paste printed flat cable, conductive silver paste printed flat cable, tinned flat cable, aluminized flat cable and the like, the material cost and the manufacturing cost are lower, the area of the circuit switching sheet is small, the cost is low, the scratch resistance and the plugging resistance are realized, the structure is simple, the reliability is high, various thin film flexible flat cable plugging connectors can be compatible, and the application field is wide.
Drawings
FIG. 1 is a schematic view of the structure of the present invention;
FIG. 2 is a first schematic structural diagram of a circuit interposer of the present invention;
FIG. 3 is a schematic structural view of a flat cable connector body according to the present invention;
fig. 4 is a first schematic view of an application structure of the flat cable plug connector according to the present invention;
FIG. 5 is a second schematic structural diagram of a circuit interposer of the present invention;
fig. 6 is a schematic diagram of a second application structure of the flat cable plug-in connector of the present invention.
Detailed Description
The invention is described in detail below with reference to the figures and the specific embodiments.
The present embodiment provides a thin film flat cable interface structure with a circuit patch on a plug-in gold finger surface, as shown in fig. 1-3, the thin film flat cable interface structure includes a flat cable interface body 200, a circuit patch 100, and a thermosetting conductive particle adhesive 103 disposed between the flat cable interface body 200 and the circuit patch 100; the flat cable interface body is provided with a flat cable conducting wire 202 and a flat cable conducting contact 201 connected with the flat cable conducting wire; the circuit patch 100 comprises an exposed surface and a binding surface, the exposed surface is provided with an exposed surface conductive contact 101, the binding surface is provided with a binding surface conductive contact, and the exposed surface conductive contact and the binding surface conductive contact are connected in series through a conductive via 102, wherein the conductive via 102 can be arranged on the exposed surface conductive contact 101 and the binding surface conductive contact, the conductive via 102 directly conducts the exposed surface conductive contact and the binding surface conductive contact through a conductive pattern layer arranged on the surface of the conductive via 102, and the thermosetting conductive particle adhesive 103 is used for binding and connecting the flat cable conductive contact 201 on the flat cable interface body 200 and the binding surface conductive contact of the circuit patch 200; thus, after the thermosetting conductive particle adhesive 103 is used for connection, the exposed surface conductive contact 101 and the flat cable conductive wire 202 can be electrically connected.
The flat cable interface body is a flexible flat cable interface body; as shown in fig. 4, the thin film cable interface structure is configured to be inserted into the slot of the cable connector 300, and the thickness of the thin film cable interface structure is compatible with and equal to the thickness supported by the slot of the cable connector 300, specifically, after the thin film cable interface structure is inserted into the slot of the cable connector 300, the exposed surface conductive contact 101 is in contact connection with the contact piece 301 in the slot of the cable connector 300.
In addition, the thermosetting conductive particle glue 103 is disposed between the flat cable interface body and the circuit interposer 100, and the thermosetting conductive particle glue 103 includes one or more of an ACF thermosetting conductive particle glue and an ACP thermosetting conductive particle glue.
After the circuit switching piece, the thermosetting conductive particle adhesive and the flat cable interface body are aligned and overlapped, the circuit switching piece is firmly adhered to the contact area of the flat cable interface body by the thermosetting conductive particle adhesive through heating and pressurizing.
The total thickness T100 of the flat cable interface body, the circuit switching sheet and the thermosetting conductive particle adhesive after thermosetting attachment is compatible with and equal to the thickness supported by the slot of the flat cable plug connector 300 of the thin film flexible flat cable.
In addition, after the thin film flat cable interface structure is inserted into the slot of the flat cable plug-in connector 300, the thermosetting conductive particle adhesive 103 and the circuit interposer 100 are disposed in the slot area of the slot. Still alternatively, after the flat cable interface structure is inserted into the slot of the flat cable plug connector 300, the thermosetting conductive particle adhesive 103 and the circuit interposer 100 are disposed in the slot area of the slot, and the circuit interposer 100 further extends to the outside of the slot area of the slot, for example, the circuit interposer 100 includes a part of the circuit interposer disposed in the slot area of the slot and a part of the circuit interposer extending to the outside of the slot area of the slot, as shown in fig. 6.
After the circuit adapter sheet 100 extends out of the slot area of the slot, the part outside the slot area is fixedly attached to the flat cable interface body in a sticking manner; specifically, after the circuit patch panel extends to the outside of the slot area of the slot, the part outside the slot area is attached and fixed to the flat cable interface body 200 by the double-sided adhesive tape 104.
As shown in fig. 5, when the circuit interposer 100 extends out of the slot area of the slot, the circuit interposer 100 includes a part of the circuit interposer 103A disposed in the slot area of the slot and a part of the circuit interposer 104A extending out of the slot area of the slot, wherein the exposed-surface conductive contacts 101 and the attachment-surface conductive contacts are disposed on the part of the circuit interposer 103A, and the conductive vias 102 are disposed on the circuit interposer 104A, so that the exposed-surface conductive contacts 101 and the conductive vias 102, and the attachment-surface conductive contacts and the conductive vias 102 are respectively connected in series through the interposer leads 105.
Thus, the circuit switching piece 100 body can be enlarged and extended to the outside of the area where the thin film flexible flat cable is inserted into the slot of the thin film flexible flat cable plug connector 300, and the contact point of the exposed surface and the joint surface of the circuit switching piece 100 body can be conducted in series through the switching piece conducting wire 105 and the conducting through hole 102; the circuit switching sheet 100 body outside the area of the slot of the plug connector 300 and the thin film flexible flat cable can be fixed by double faced adhesive tape 104; the circuit patch 100 body adhered to the flexible flat cable attachment surface outside the area of the slot of the plug connector 300 can realize the functions of reinforcing and handling the flexible flat cable plug interface.
The thin film flexible flat cable with the thin film flat cable interface structure provided with the circuit switching piece on the surface of the inserted golden finger is extremely low in cost, and if a thin film flexible flat cable of a PET substrate printed by silver paste with 50PIN, 0.5mm of space and 1 meter of length is manufactured, the cost is estimated to be within 3 yuan; if a thin film flexible flat cable with the same function is manufactured by etching a PI copper foil substrate, the estimated cost is more than 30 yuan; if a film flexible flat cable with the same function is manufactured by using a PET (polyethylene terephthalate) aluminized or tinned substrate, the cost is estimated to be more than 10 RMB, the plugging times of the conductive contact points of the aluminized or tinned film flexible flat cable contacting the contact piece 301 in the slot of the plug connector 300 are few, the conductive contact points will be scratched generally about 20 times to cause poor contact, the film flexible flat cable of the PET substrate printed by silver paste may be scratched about 5 times to cause poor contact, and the plugging service life of the film flexible flat cable interface structure provided by the embodiment is designed to be more than 100 times.
The design mode of the film flat cable interface structure of the embodiment can be suitable for signal connection flat cable design among circuit modules in various electronic and electric products, and is also suitable for PIN outlet interface design directly drawn out by extending a plurality of functional film flexible circuit boards.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalents and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A thin film flat cable interface structure with a circuit switching piece arranged on the surface of an inserted golden finger is characterized by comprising a flat cable interface body, the circuit switching piece and thermosetting conductive particle glue arranged between the flat cable interface body and the circuit switching piece;
the flat cable interface body is provided with a flat cable conducting wire and a flat cable conducting contact connected with the flat cable conducting wire; the circuit switching piece comprises an exposed surface and a binding surface, the exposed surface is provided with an exposed surface conductive contact, the binding surface is provided with a binding surface conductive contact, and the exposed surface conductive contact and the binding surface conductive contact are connected in series and conducted through a conductive through hole;
the thermosetting conductive particle adhesive is used for being attached and connected with the flat cable conductive contact on the flat cable interface body and the attachment surface conductive contact of the circuit switching piece.
2. The FFC interface structure of claim 1, wherein: the flat cable connector body is a flexible flat cable connector body.
3. The FFC interface structure of claim 1, wherein: the thin film flat cable interface structure is used for being inserted into a slot of a flat cable plug-in connector, and the thickness of the thin film flat cable interface structure is compatible with and equal to the thickness supported by the slot of the flat cable plug-in connector inserted into the thin film flat cable interface structure.
4. The FFC interface structure of claim 3, wherein: after the thin film flat cable interface structure is inserted into the slot of the flat cable plug-in connector, the exposed surface conductive contact is in contact connection with the contact sheet in the slot of the flat cable plug-in connector.
5. The FFC interface structure of claim 1, wherein: the thermosetting conductive particle adhesive comprises one or more of ACF thermosetting conductive particle adhesive and ACP thermosetting conductive particle adhesive.
6. The FFC interface structure of claim 5, wherein: after the thin film flat cable interface structure is inserted into a slot of a flat cable plug-in connector, the thermosetting conductive particle adhesive and the circuit switching piece are arranged in a slot area of the slot.
7. The FFC interface structure of claim 5, wherein: after the thin film flat cable interface structure is inserted into a slot of a flat cable plug-in connector, the thermosetting conductive particle adhesive and the circuit switching piece are arranged in a slot area of the slot, and the circuit switching piece also extends out of the slot area of the slot.
8. The FFC interface structure of claim 7, wherein: after the circuit switching piece extends out of the slot area of the slot, the part outside the slot area is fixedly attached to the flat cable interface body in a sticking mode.
9. The FFC interface structure of claim 8, wherein: and after the circuit switching piece extends out of the slot area of the slot, the part outside the slot area is fixedly attached to the flat cable interface body in a double-sided adhesive attaching mode.
10. The FFC interface structure of claim 1 or claim 7, wherein: the exposed surface conductive contact and the conductive through hole and the binding surface conductive contact and the conductive through hole are connected in series through the adapter piece wires respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211131282.XA CN115313073A (en) | 2022-09-16 | 2022-09-16 | Film flat cable interface structure with circuit switching piece arranged on surface of inserted golden finger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211131282.XA CN115313073A (en) | 2022-09-16 | 2022-09-16 | Film flat cable interface structure with circuit switching piece arranged on surface of inserted golden finger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115313073A true CN115313073A (en) | 2022-11-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211131282.XA Pending CN115313073A (en) | 2022-09-16 | 2022-09-16 | Film flat cable interface structure with circuit switching piece arranged on surface of inserted golden finger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115313073A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101719606A (en) * | 2010-01-21 | 2010-06-02 | 台均科技（深圳）有限公司 | Flexible circuit switching sheet for input and output interfaces of film circuit board |
| CN101789551A (en) * | 2010-01-21 | 2010-07-28 | 台均科技（深圳）有限公司 | Flexible circuit switching piece for thin film circuit board output-input interface |
| CN103996913A (en) * | 2014-05-16 | 2014-08-20 | 业成光电（深圳）有限公司 | Connector structure |
-
2022
- 2022-09-16 CN CN202211131282.XA patent/CN115313073A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101719606A (en) * | 2010-01-21 | 2010-06-02 | 台均科技（深圳）有限公司 | Flexible circuit switching sheet for input and output interfaces of film circuit board |
| CN101789551A (en) * | 2010-01-21 | 2010-07-28 | 台均科技（深圳）有限公司 | Flexible circuit switching piece for thin film circuit board output-input interface |
| CN103996913A (en) * | 2014-05-16 | 2014-08-20 | 业成光电（深圳）有限公司 | Connector structure |
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