CN113451815B - Flexible circuit reliability connecting device and connecting method - Google Patents
Flexible circuit reliability connecting device and connecting method Download PDFInfo
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- CN113451815B CN113451815B CN202110796256.8A CN202110796256A CN113451815B CN 113451815 B CN113451815 B CN 113451815B CN 202110796256 A CN202110796256 A CN 202110796256A CN 113451815 B CN113451815 B CN 113451815B
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- 238000000034 method Methods 0.000 title claims description 8
- 238000010438 heat treatment Methods 0.000 claims description 13
- 239000004020 conductor Substances 0.000 claims description 3
- 239000011810 insulating material Substances 0.000 claims description 2
- 229910052751 metal Inorganic materials 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 229910052755 nonmetal Inorganic materials 0.000 claims description 2
- 238000005452 bending Methods 0.000 description 9
- 238000013461 design Methods 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000003292 glue Substances 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 241000282414 Homo sapiens Species 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000007639 printing Methods 0.000 description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 238000010367 cloning Methods 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 230000002500 effect on skin Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011664 nicotinic acid Substances 0.000 description 1
- 230000005693 optoelectronics Effects 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
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- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
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- 238000011144 upstream manufacturing Methods 0.000 description 1
Classifications
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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
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/02—Contact members
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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
- H01R12/77—Coupling devices for flexible printed circuits, flat or ribbon cables or like structures
- H01R12/771—Details
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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
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/46—Bases; Cases
- H01R13/502—Bases; Cases composed of different pieces
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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
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
- H01R13/629—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances
- H01R13/631—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances for engagement only
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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
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
- H01R13/629—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances
- H01R13/633—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances for disengagement only
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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
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
- H01R13/639—Additional means for holding or locking coupling parts together, after engagement, e.g. separate keylock, retainer strap
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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
- H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
-
- 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
- H01R43/26—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for engaging or disengaging the two parts of a coupling device
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Coupling Device And Connection With Printed Circuit (AREA)
Abstract
The invention provides a flexible circuit reliability connector, and belongs to the technical field of flexible circuit connection. The invention discloses a flexible circuit reliability connector which comprises a connector upper plate, a connector lower plate, an anode conduction band type contact, a cathode conduction band type contact and an upper plate and lower plate connecting device.
Description
Technical Field
The invention belongs to the technical field of flexible circuit connection, and particularly relates to a flexible circuit reliability connection device and a flexible circuit reliability connection method.
Background
A flexible circuit is a special type of flexible circuit formed by printing electronic components and wiring on a flexible substrate. The flexible circuit provides excellent electrical performance, meets the design requirements of smaller and higher density mounting, and also helps to reduce assembly processes and enhance reliability. With the rapid development of electronics, particularly wearable electronics, the demand for flexible circuits has grown. In contrast to conventional circuits, flexible circuits have the feature of being flexible, foldable, twistable, compressible, stretchable, and even deformable into arbitrary shapes while still maintaining efficient optoelectronic performance, reliability, and integration. Flexible electronics (including flexible circuit design and printing, upstream and downstream materials, etc.) is a completely new revolution in electronics, and has attracted considerable attention and rapidly developed around the world. The journal of science in the united states lists this technology as one of ten technological achievements in the world in 2000, and is juxtaposed with significant findings such as sketch of human genome and cloning technology. Flexible electronics is a highly cross-converged subversion of technology, and the flexible electronic information industry has grown tremendous technological innovation opportunities during the "fourteen five" period. The flexible electronic technology and the flexible circuit thereof have demonstrated great market potential in the fields of internet of things remote Radio Frequency Identification (RFID), electronic skin, health monitors, bionic robots, flexible circuits, low-power consumption sensors, wearable devices and the like.
The flexible circuit must be connected to an external hard circuit or chip to perform its full function. Currently, the method mainly includes welding (such as CN112004309A, CN111752021a, etc.), contact or golden finger connector connection (such as CN112020221A, CN104638401B, etc.), golden finger plug-in connection (such as CN112240495, CN105407636B, etc.), heat sealing glue or conductive glue curing connection (such as CN112048277 a), button connection or riveting connection (such as CN108613126A, CN101811396A, etc. However, these connections are based on point contacts or very small area connection contacts, which are suitable for operation at lower current conditions in the circuit. Along with the demands of human beings on portable, multifunctional and bendable flexible electronic circuits and electronic devices, the conventional connection modes have the problems of small contact area, low bending reliability, rapid heating or local hot spot under high power, breakage of the connecting parts after bending and the like.
Disclosure of Invention
Aiming at the problems of small contact area, bending reliability, rapid heating or local hot spot under high power, fracture or poor contact at the joint after bending and the like in the flexible circuit connection in the prior art, the invention provides a flexible circuit reliability connecting device and a connecting method, which realize the electric connection between a flexible circuit and a rigid chip or a conductive terminal and a system of a traditional rigid circuit board.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
A flexible circuit reliability connection device comprising: a connector upper plate, a positive conduction band contact, a negative conduction band contact and a connector lower plate;
One ends of the upper connector plate and the lower connector plate are hinged through an upper plate connecting device and a lower plate connecting device, and the upper connector plate and the lower connector plate rotate around the upper plate connecting device and the lower plate connecting device; the positive and negative conduction band contacts are disposed between the connector upper and lower plates.
Furthermore, the inner sides of the upper connector plate and the lower connector plate are wavy curved surfaces, the curvatures of the wavy curved surfaces of the inner sides of the upper connector plate and the lower connector plate are correspondingly equal and mutually matched; the wavy curved surface consists of three arcs which are connected end to end and 1/5 of the arc, and the curvature radius of the arc is sequentially increased from one side close to the upper plate connecting device and the lower plate connecting device.
The curvature radius ratio of the three end-to-end connected 1/5 circular arcs is 1:1.1-2:2.2-3. In order to ensure that the fixed flexible circuit keeps the flexibility and the bending property, the curvature radius of 1/5 of the circular arcs connected end to end is designed to be sequentially increased, and the strength, the flexibility and the bending property of the cambered surface support are improved.
Further, the ratio of the curvature radius of the wavy curved surface to the curvature radius of the wavy curved surface conduction band is 1:1.618:2.617.
Further, a positive external jack and a negative external jack are arranged on the side wall of one side, close to the upper plate connecting device and the lower plate connecting device, of the upper plate of the connector; the upper surface of the lower plate of the connector is provided with an anode guide hole and a cathode guide hole; the lower surface of the upper plate of the connector is provided with a positive electrode guide post and a negative electrode guide post corresponding to the positive electrode guide hole and the negative electrode guide hole respectively;
The positive conduction band type contact and the negative conduction band type contact are arranged on the surface of the upper plate of the connector, the positive conduction band type contact and the positive external jack are correspondingly connected through a positive wire, and the negative conduction band type contact and the negative external jack are correspondingly connected through a negative wire; the positive electrode lead and the negative electrode lead are encapsulated in the upper plate of the connector; the positive electrode conduction band type contact and the negative electrode conduction band type contact are insulated and isolated, are not communicated and are not conductive; the positive electrode conduction band type contact and the negative electrode conduction band type contact are wavy curved conduction bands along the inner sides of the upper connector plate and the lower connector plate; and the positive electrode guide post and the negative electrode guide post vertically penetrate through the positive electrode conduction band type contact and the negative electrode conduction band type contact respectively and are embedded into the positive electrode guide hole and the negative electrode guide hole respectively. The positive electrode guide belt type contact and the negative electrode guide belt type contact are wavy curved surface conduction belts along the inner sides of the upper connector plate and the lower connector plate, and the structure is that the golden finger of the flexible circuit and the positive electrode guide belt type contact have larger contact surfaces; meanwhile, the wavy curved surface can ensure that when the flexible circuit and the connector have relative bending movement, at least more than one curved surface is arranged, and the golden finger of the flexible circuit and the positive and negative electrode guide belt type contact have good contact, so that the stability of the connector is provided.
Further, an upper plate fastening column mounting hole is formed in one side, far away from the upper plate connecting device and the lower plate connecting device, of the connector upper plate, and a lower plate fastening column mounting hole is formed in a position, corresponding to the upper plate fastening column mounting hole, of the connector lower plate; the connector upper plate and the connector lower plate are fixed by mounting fasteners in the upper plate fastening post mounting holes and the lower plate fastening post mounting holes.
Further, the fastener comprises a fastening post, a fastening barb and a wedge-shaped opening; the fastening barbs are arranged on the fastening columns and used for preventing the fastening columns from sliding out of the upper plate fastening column mounting holes and the lower plate fastening column mounting holes so as to play a role in fastening the upper plate and the lower plate; the fastening post is further provided with a wedge-shaped opening, the wedge-shaped opening is located at the junction of the upper connector plate and the lower connector plate, and the wedge-shaped opening is broken firstly under the action of strong tension force applied to the upper connector plate and the lower connector plate so that the upper connector plate and the lower connector plate can be opened for replacing the flexible circuit.
Further, the positive electrode lead and the negative electrode lead are respectively connected with the positive electrode conduction band contact and the negative electrode conduction band contact, and the connection mode comprises any one of connection modes of integrated forming, welding, riveting, crimping, lapping and cutting into leads with required widths by the conduction band contacts.
Further, the center of the upper plate fastening column mounting hole is aligned with the center of the lower plate fastening column mounting hole, and the diameters are equal.
Further, the length and the width of the connector upper plate are equal to those of the connector lower plate, the thickness of the connector upper plate is larger than that of the connector lower plate, and the width and the length of the positive electrode guide belt type contact and the width and the length of the negative electrode guide belt type contact are equal to each other.
Further, the positive and negative conductive strip contacts are good conductors.
Further, the surfaces of the positive electrode conduction band contact and the negative electrode conduction band contact are electroplated with a conductive silver layer.
Further, the centers of the positive electrode guide post and the negative electrode guide post are respectively aligned with the centers of the positive electrode guide hole and the negative electrode guide hole; the diameters of the positive electrode guide post and the negative electrode guide post are smaller than the diameters of the corresponding positive electrode guide hole and the corresponding negative electrode guide hole, and the diameters of the positive electrode guide post and the negative electrode guide post are smaller than the widths of the positive electrode guide belt type contact and the negative electrode guide belt type contact.
Further, the upper parts of the positive electrode guide post and the negative electrode guide post are embedded into the connector upper plate and are smaller than the thickness of the connector upper plate, and the length of the lower part exposed out of the connector upper plate is smaller than the depths of the positive electrode guide hole and the negative electrode guide hole.
Further, the positive electrode conduction band type contact and the negative electrode conduction band type contact are 0.1-0.5mm higher than the inner side surface of the upper plate of the connector, so that the positive electrode conduction band type contact and the negative electrode conduction band type contact are tightly attached to corresponding golden fingers of the flexible circuit.
Further, the diameters of the positive electrode guide post and the negative electrode guide post are 1/4-1/3 of the widths of the positive electrode conduction band contact and the negative electrode conduction band contact. So as to ensure that the guide post can pass through the positive and negative guide belt type contacts, but the positive and negative guide belt type contacts are not separated by the positive guide post and the negative guide post, and still have good continuity and provide excellent conductive performance;
further, the lengths of the lower parts of the positive electrode guide post and the negative electrode guide post exposed out of the upper connector plate are 1/3-1/2 of the thickness of the lower connector plate.
Furthermore, the bottoms of the positive electrode guide post and the negative electrode guide post are in a needle shape, so that the golden finger of the flexible circuit can conveniently penetrate through the golden finger.
Further, except that the positive electrode conduction band contact, the negative electrode conduction band contact, the positive electrode lead, the negative electrode lead, the positive electrode external jack and the negative electrode external jack are metal conductors, other parts are nonmetal insulating materials.
Further, the positive electrode lead type contact and the negative electrode lead type contact are provided in one or more. The number of the conduction band contacts can be set according to the number of the golden fingers of the connected flexible circuit as required, so as to provide a flexible circuit reliability connecting device with more universality.
Further, inserting positive electrode golden fingers and negative electrode golden fingers of the flexible circuit between the connector upper plate and the connector lower plate, and correspondingly contacting with the positive electrode conduction band contact and the negative electrode conduction band contact respectively; then the upper connector plate rotates around the central shaft of the upper and lower connector plate connecting device, and is attached to the lower connector plate, and the positive electrode guide post and the negative electrode guide post penetrate through positive and negative electrode golden fingers of the flexible circuit under the action of pressure and are embedded into the positive electrode guide hole and the negative electrode guide hole; then, a fastening piece composed of a fastening post and a fastening barb is inserted into the mounting hole of the upper plate fastening post and the mounting hole of the lower plate fastening post, so that the upper plate and the lower plate are tightly attached, and positive and negative golden fingers of the flexible circuit are tightly pressed; the positive external jack and the negative external jack are respectively connected with the positive electrode and the negative electrode of the power supply to finish connection. The design of the structure provides a stable and reliable flexible circuit connector device; the positive electrode guide post and the negative electrode guide post penetrate through the positive electrode golden finger and the negative electrode golden finger of the flexible circuit, so that the flexible circuit can be ensured not to fall off from the connector under the action of larger pulling force; the fastening barb on the fastening piece is in a right triangle structure with one right-angle side attached to the edge of the fastening column, and when the fastening piece is inserted into the fastening column mounting hole on the upper connector plate or the lower connector plate, the fastening barb can be conveniently inserted, so that the upper connector plate and the lower connector plate are tightly pressed together, and further positive and negative golden fingers of the flexible circuit are respectively in good contact with the positive conduction band contact and the negative conduction band contact; the design of the wedge-shaped opening on the fastening column can conveniently lead the wedge-shaped opening to be broken firstly under the action of strong tension when a new flexible circuit needs to be replaced, so as to open the upper connector plate and the lower connector plate; simultaneously, due to the structural design of the fastening barbs on the fastening pieces, the fastening pieces can be pushed outwards from the fracture surfaces of the fastening pieces, and then slide out from the fastening column mounting holes of the upper connector plate and the lower connector plate, and new fastening columns are reinstalled, so that the upper connector plate and the lower connector plate can be fixed again, and the flexible circuit can be replaced.
Compared with the prior art, the invention has the following advantages:
1. the invention realizes the design of a large-scale contact through the arc conduction band type contacts which are mutually connected end to end, increases the contact area, reduces the contact resistance and improves the conductivity under large current.
2. The invention ensures good contact between the contact and the golden finger of the connected flexible circuit through the wavy curved surface design, and ensures that the contact surface can have a large-area arc contact surface under different bending angles; good contact and conductivity is ensured.
3. The wider conduction band contact provides a smoother electron transmission channel, avoids current crowding under large current, can effectively regulate and control skin effect in current transmission, and reduces transmission loss.
4. The design of the guide post and the guide hole can ensure that the flexible circuit can be well connected with the contact under the action of the drawing force in the bending and using processes, and cannot slide and fall off; has the advantages of quick and reliable installation and convenient use.
5. The fastener comprises the fastening column, the fastening barb and the wedge-shaped opening, plays a role in fastening the upper plate and the lower plate, is convenient to detach, and breaks at the wedge-shaped opening under the action of strong tension to the upper plate and the lower plate of the connector so as to open the upper plate and the lower plate of the connector and facilitate the replacement of the flexible circuit.
Drawings
FIG. 1 is a top view of a connector top plate of the present invention;
FIG. 2 is a front view of the connector of the present invention;
FIG. 3 is a left side view of the connector of the present invention;
FIG. 4 is a top view of a lower plate of the connector of the present invention;
FIG. 5 is a top view of the upper plate of the connector of the present invention;
FIG. 6 is a schematic perspective view of a connector according to the present invention;
FIG. 7 is a schematic view in section A-A of the connector of the present invention;
FIG. 8 is a schematic view in section B-B of the connector of the present invention;
FIG. 9 is a schematic cross-sectional view of the mounting holes of the upper and lower plate fastening posts of the connector of the present invention;
FIG. 10 is a schematic diagram showing electrical connection between a golden finger device and a power module of a flexible board by using a conventional connector in a comparative embodiment;
FIG. 11 is an exploded view of the golden finger device and power module of the connector and flexible heat generating plate of the present invention in example 1;
FIG. 12 is a schematic diagram of the electrical connection between the connector of the present invention and the golden finger device of the flexible heating panel and the power module in the embodiment 1;
FIG. 13 is an exploded view of the golden finger device and power module of the connector and flexible board of the present invention in example 2;
fig. 14 is a schematic diagram of the electrical connection between the golden finger device of the connector and the flexible board and the power module in the embodiment 2.
Legend description: 1-connector upper plate, 2-upper plate fastening column mounting hole, 3-positive electrode guide belt type contact, 4-negative electrode guide belt type contact, 5-connector lower plate, 6-upper and lower plate connector, 7-lower plate fastening column mounting hole, 8-positive electrode guide hole, 9-negative electrode guide hole, 10-positive electrode guide column, 11-negative electrode guide column, 12-positive electrode wire, 13-negative electrode wire, 14-positive electrode external jack, 15-negative electrode external jack, 16-fastening column, 17-fastening barb, 18-wedge opening, 19-power supply, 20-heating film conventional connector, 21-negative electrode golden finger and 22-positive electrode golden finger.
Detailed Description
In order to more clearly and specifically describe the technical content and effects of the present invention, the following description will be made with reference to specific examples and comparative examples, and the following description is merely to more clearly describe embodiments of the present invention or technical solutions in the prior art, and does not limit the present invention.
Example 1
A flexible circuit reliability connecting device comprises a connector upper plate 1, a positive electrode guide belt type contact 3, a negative electrode guide belt type contact 4 and a connector lower plate 5;
One ends of the connector upper plate 1 and the connector lower plate 5 are hinged through an upper plate connecting device 6, and the connector upper plate 1 and the connector lower plate 5 rotate around the upper plate connecting device 6; the positive electrode guide belt type contact 3 and the negative electrode guide belt type contact 4 are arranged between the connector upper plate 1 and the connector lower plate 5;
furthermore, the inner sides of the connector upper plate 1 and the connector lower plate 5 are wavy curved surfaces, the curvatures of the wavy curved surfaces of the inner sides of the connector upper plate 1 and the connector lower plate 5 are correspondingly equal, and the connector upper plate and the connector lower plate are mutually matched;
A positive external jack 14 and a negative external jack 15 are arranged on the side wall of the connector upper plate 1, which is close to one side of the upper plate connecting device 6 and the lower plate connecting device; the upper surface of the connector lower plate 5 is provided with a positive electrode guide hole 8 and a negative electrode guide hole 9; a positive electrode guide post 10 and a negative electrode guide post 11 are respectively arranged on the lower surface of the connector upper plate 1 corresponding to the positive electrode guide hole 8 and the negative electrode guide hole 9;
The positive electrode conductive belt type contact 3 is correspondingly connected with the positive electrode external jack 14 through a positive electrode wire 12, and the negative electrode conductive belt type contact 4 is correspondingly connected with the negative electrode external jack 15 through a negative electrode wire 13; and the positive electrode lead 12 and the negative electrode lead 13 are encapsulated inside the connector upper plate 1; the positive electrode conduction band contact 3 and the negative electrode conduction band contact 4 are insulated, isolated, not communicated and not conductive; the positive electrode guide belt type contact 3 and the negative electrode guide belt type contact 4 are wave-shaped curved surface guide belts along the inner sides of the connector upper plate 1 and the connector lower plate 5; and the positive electrode guide post 10 and the negative electrode guide post 11 vertically penetrate through the positive electrode guide belt type contact 3 and the negative electrode guide belt type contact 4 respectively and are respectively embedded into the positive electrode guide hole 8 and the negative electrode guide hole 9.
Comparative example 1
In order to compare the effects of the present invention, as shown in fig. 11, a conventional connector 20 of a heating film is used, that is, a welding and then glue dripping packaging mode is adopted to realize connection, and finally, the connector is connected with the corresponding positive electrode and the corresponding negative electrode of a power supply 19. The contact area of the connection part between the negative electrode golden finger 21 and the positive electrode golden finger 22 is small, and the heat is generated under a large current, so that the connection part becomes a local hot spot.
Example 2
As shown in figures 11-12, the invention is used as a heating film conventional connector 20, namely, a positive electrode golden finger 22 and a negative electrode golden finger 21 of a flexible heating film are inserted between an upper connector plate 1 and a lower connector plate 5 and respectively contacted with a positive electrode guide belt type contact 3 and a negative electrode guide belt type contact 4 correspondingly; after the upper and lower plates of the upper and lower connector plates 1 and 5 rotate around the central axes of the upper and lower plate connecting devices 6 and are closed up and down, the positive electrode guide post 10 and the negative electrode guide post 11 pass through positive and negative electrode golden fingers of the flexible heating film under the action of pressure and are embedded into the positive electrode guide hole 8 and the negative electrode guide hole 9; then, a fastening piece composed of a fastening column 16 and a fastening barb 17 is inserted into the upper plate fastening column mounting hole 2 and the lower plate fastening column mounting hole 7, so that the upper plate and the lower plate are tightly attached, and positive and negative golden fingers of the flexible heating film are tightly pressed; the positive external jack 14 and the negative external jack 15 are respectively connected with the positive electrode and the negative electrode of the power supply.
Example 3
The connector is used as a flexible circuit, and the flexible circuit is provided with four golden fingers to be connected and is respectively marked as 2401, 2402, 2403 and 2404. Referring to fig. 13-14, the number of the positive conductive strip contact 3 and the negative conductive strip contact 4 in the connector is increased to 4 conductive strip contacts, which are respectively denoted by 301, 302, 303, and 304, and the number of corresponding guide posts, wires, conductive strip contacts, and guide holes is increased to 4. Four golden fingers of the flexible circuit are inserted between the connector upper plate 1 and the connector lower plate 5 and respectively correspondingly contacted with 4 conduction band contacts on the upper plate 1 and the connector lower plate 5; after the upper and lower plates of the upper and lower connector plates 1 and 5 rotate around the central axes of the upper and lower plate connecting devices 6 and are closed up and down, the corresponding guide posts pass through the golden fingers of the flexible heating film under the action of pressure and are embedded into the guide holes; then, a fastening piece composed of a fastening column 16 and a fastening barb 17 is inserted into the upper plate fastening column mounting hole 2 and the lower plate fastening column mounting hole 7, so that the upper plate and the lower plate are tightly attached, and positive and negative golden fingers of the flexible heating film are tightly pressed.
What is not described in detail in the present specification belongs to the prior art known to those skilled in the art. While the foregoing describes illustrative embodiments of the present invention to facilitate an understanding of the present invention by those skilled in the art, it should be understood that the present invention is not limited to the scope of the embodiments, but is to be construed as protected by the accompanying claims insofar as various changes are within the spirit and scope of the present invention as defined and defined by the appended claims.
Claims (8)
1. A flexible circuit reliability connection device, characterized in that: the device comprises a connector upper plate (1), an anode conduction band type contact (3), a cathode conduction band type contact (4) and a connector lower plate (5);
one ends of the connector upper plate (1) and the connector lower plate (5) are hinged through an upper plate connecting device and a lower plate connecting device (6), and the connector upper plate (1) and the connector lower plate (5) rotate around the upper plate connecting device and the lower plate connecting device (6); the positive electrode conduction band contact (3) and the negative electrode conduction band contact (4) are arranged between the connector upper plate (1) and the connector lower plate (5);
Except that the positive electrode conduction band contact (3), the negative electrode conduction band contact (4), the positive electrode lead (12), the negative electrode lead (13), the positive electrode external jack (14) and the negative electrode external jack (15) are metal conductors, other parts are nonmetal insulating materials;
The inner sides of the connector upper plate (1) and the connector lower plate (5) are wavy curved surfaces, the wavy curved surfaces of the inner sides of the connector upper plate (1) and the connector lower plate (5) are correspondingly equal in curvature and are mutually matched; the wavy curved surface consists of three arcs which are connected end to end and 1/5 of the arc, and the curvature radius of the arc is sequentially increased from one side close to the upper plate connecting device (6) and the lower plate connecting device;
A positive external jack (14) and a negative external jack (15) are arranged on the side wall of the connector upper plate (1) close to one side of the upper plate connecting device (6); the upper surface of the lower connector plate (5) is provided with a positive electrode guide hole (8) and a negative electrode guide hole (9); the lower surface of the connector upper plate (1) is provided with a positive electrode guide post (10) and a negative electrode guide post (11) corresponding to the positive electrode guide hole (8) and the negative electrode guide hole (9) respectively;
The positive electrode guide belt type contact (3) is correspondingly connected with the positive electrode external jack (14) through a positive electrode lead (12), and the negative electrode guide belt type contact (4) is correspondingly connected with the negative electrode external jack (15) through a negative electrode lead (13); the positive electrode lead (12) and the negative electrode lead (13) are encapsulated in the connector upper plate (1); the positive electrode conduction band type contact (3) and the negative electrode conduction band type contact (4) are insulated and isolated, are not communicated and are not conductive;
The positive electrode conduction band type contact (3) and the negative electrode conduction band type contact (4) are wave-shaped curved conduction bands along the inner sides of the connector upper plate (1) and the connector lower plate (5); and the positive electrode guide post (10) and the negative electrode guide post (11) vertically penetrate through the positive electrode guide belt type contact (3) and the negative electrode guide belt type contact (4) respectively and are embedded into the positive electrode guide hole (8) and the negative electrode guide hole (9) respectively.
2. A flexible circuit reliability connection unit as claimed in claim 1, wherein: the curvature radius ratio of the three end-to-end arcs is 1:1.1-1.4:1.5-3.
3. A flexible circuit reliability connection unit as claimed in claim 1, wherein: an upper plate fastening column mounting hole (2) is formed in one side, far away from the upper plate connecting device (6), of the connector upper plate (1), and a lower plate fastening column mounting hole (7) is formed in a position, corresponding to the upper plate fastening column mounting hole (2), of the connector lower plate (5); the connector upper plate (1) and the connector lower plate (5) are fixed by mounting fasteners in the upper plate fastening post mounting holes (2) and the lower plate fastening post mounting holes (7).
4. A flexible circuit reliability connection unit according to claim 3, wherein: the fastener comprises a fastening column (16), a fastening barb (17) and a wedge-shaped opening (18); the fastening barbs (17) are arranged on the fastening columns (16) and used for preventing the fastening columns (16) from sliding out of the upper plate fastening column mounting holes (2) and the lower plate fastening column mounting holes (7) so as to play a role in fastening the upper plate and the lower plate; the fastening column (16) is further provided with a wedge-shaped opening (18), the wedge-shaped opening (18) is located at the junction of the upper connector plate (1) and the lower connector plate (5), and the wedge-shaped opening is broken firstly under the action of strong tension to the upper connector plate (1) and the lower connector plate (5) so that the upper connector plate (1) and the lower connector plate (5) can be opened for replacing the flexible circuit.
5. The flexible circuit reliability connection unit of claim 4 wherein: the positive electrode conduction band type contact (3) and the negative electrode conduction band type contact (4) are higher than the inner side surface of the upper connector plate (1) by 0.1-0.5 mm, so that the positive electrode conduction band type contact (3) and the negative electrode conduction band type contact (4) are tightly attached to corresponding golden fingers of a flexible circuit; the diameters of the positive electrode guide post (10) and the negative electrode guide post (11) are 1/4-1/3 of the widths of the positive electrode conduction band contact (3) and the negative electrode conduction band contact (4); the lengths of the lower parts of the positive electrode guide posts (10) and the negative electrode guide posts (11) exposed out of the upper connector plate (1) are 1/3-1/2 of the thickness of the lower connector plate (5).
6. The flexible circuit reliability connection unit of claim 5 wherein: the bottoms of the positive electrode guide post (10) and the negative electrode guide post (11) are needle-shaped.
7. The flexible circuit reliability connection unit of claim 6 wherein: the positive electrode conduction band type contact (3) and the negative electrode conduction band type contact (4) are arranged in one or more.
8. A flexible circuit reliability connection method of the flexible circuit reliability connection device of claim 1, wherein: inserting positive golden fingers and negative golden fingers of the flexible circuit between the connector upper plate (1) and the connector lower plate (5), and respectively correspondingly contacting with the positive conduction band contact (3) and the negative conduction band contact (4); then the upper connector plate (1) rotates around the central shaft of the upper and lower connector plate connecting device (6), is attached to the lower connector plate (5), and the positive electrode guide post (10) and the negative electrode guide post (11) penetrate through positive and negative electrode golden fingers of the flexible heating film under the action of pressure and are embedded into the positive electrode guide hole (8) and the negative electrode guide hole (9); then, a fastening piece composed of a fastening post (16) and a fastening barb (17) is inserted into the upper plate fastening post mounting hole (2) and the lower plate fastening post mounting hole (7), so that the upper plate and the lower plate are tightly attached, and positive and negative golden fingers of the flexible heating film are tightly pressed; the positive external jack (14) and the negative external jack (15) are respectively connected with the positive electrode and the negative electrode of the power supply to finish connection.
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| CN202110796256.8A CN113451815B (en) | 2021-07-14 | 2021-07-14 | Flexible circuit reliability connecting device and connecting method |
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| CN202110796256.8A CN113451815B (en) | 2021-07-14 | 2021-07-14 | Flexible circuit reliability connecting device and connecting method |
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| CN215418669U (en) * | 2021-07-14 | 2022-01-04 | 中国科学院山西煤炭化学研究所 | Flexible circuit reliability connecting device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US5536177A (en) * | 1994-03-18 | 1996-07-16 | The Whitaker Corporation | Set of connectors for stacked circuit board array |
| CN202153561U (en) * | 2010-12-30 | 2012-02-29 | 信音电子(中国)股份有限公司 | Power supply connector |
| CN205029045U (en) * | 2015-10-08 | 2016-02-10 | 梁有志 | Flexible multichannel high -voltage circuit connector |
| US10367285B2 (en) * | 2017-09-16 | 2019-07-30 | Cheng Uei Precision Industry Co., Ltd. | Flexible circuit board connector |
| JP7232143B2 (en) * | 2019-07-19 | 2023-03-02 | 日本航空電子工業株式会社 | connector |
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| CN215418669U (en) * | 2021-07-14 | 2022-01-04 | 中国科学院山西煤炭化学研究所 | Flexible circuit reliability connecting device |
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