CN109273880B - Electric connection device of flexible circuit board - Google Patents
Electric connection device of flexible circuit board Download PDFInfo
- Publication number
- CN109273880B CN109273880B CN201811117074.8A CN201811117074A CN109273880B CN 109273880 B CN109273880 B CN 109273880B CN 201811117074 A CN201811117074 A CN 201811117074A CN 109273880 B CN109273880 B CN 109273880B
- Authority
- CN
- China
- Prior art keywords
- contact
- circuit board
- flexible circuit
- flat plate
- terminal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
- 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
- H01R12/778—Coupling parts carrying sockets, clips or analogous counter-contacts
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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
- H01R12/79—Coupling devices for flexible printed circuits, flat or ribbon cables or like structures connecting to rigid printed circuits or like structures
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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
- H01R13/15—Pins, blades or sockets having separate spring member for producing or increasing contact pressure
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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
- H01R13/627—Snap or like fastening
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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
Landscapes
- Coupling Device And Connection With Printed Circuit (AREA)
Abstract
The invention discloses an electric connection device of a flexible circuit board, which comprises a shell, a terminal, a crimping device, the flexible circuit board and a PCB board, wherein the terminal comprises a first contact part and a second contact part, the first contact part is higher than the second contact part, the first contact part and the second contact part are provided with contact thorns, the crimping device comprises a flat plate part and vertical parts extending from the left side and the right side of the flat plate part, the upper part of the inner side of the side wall of the shell is provided with two elastic bodies along the terminal arrangement direction, the flat plate part is provided with two strip-shaped holes penetrating through the flat plate part in parallel, and the crimping part is arranged in the middle of the lower part of the flat plate part in the direction parallel to the long side of the flat plate part.
Description
Technical Field
The invention relates to the field of electric connection, in particular to an electric connection device of a flexible circuit board.
Background
The flexible circuit board has a greater adaptability to space compared with a common PCB, so the flexible circuit board is more and more widely applied to electronic equipment, in practical application, the flexible circuit board generally needs to be connected to an electrical connector and is electrically connected with a terminal in the electrical connector so as to transmit signals, however, the flexible circuit board is generally designed to be relatively light and thin and is inconvenient to be plugged into the electrical connector, in addition, in order to realize connection with the flexible circuit board, the terminal in the electrical connector is generally contacted with a conductive part in the flexible circuit board by means of self elasticity, however, after several times of plugging and unplugging, metal fatigue is generated on metal forming the terminal, the elasticity is weakened, and even the phenomenon of poor contact with the conductive part of the flexible circuit board occurs.
Disclosure of Invention
The invention aims to provide an electric connection device of a flexible circuit board, which can realize stable and quick connection between the flexible circuit board and a terminal, can prevent metal fatigue of the terminal, and can prevent the terminal from generating poor contact with the flexible circuit board due to the reduction of elasticity after long-time use.
The invention relates to an electric connection device of a flexible circuit board, which comprises a shell, a terminal, a crimping device, the flexible circuit board and a PCB, wherein the shell comprises a side wall and a bottom wall, the side wall at the periphery encloses a terminal accommodating part, a plurality of terminals are arranged at the middle position of the terminal accommodating part in an arraying way, the terminal comprises a first contact part and a second contact part, the first contact part is higher than the second contact part, the inner side of the top part of the first contact part is provided with a guide surface, contact pricks are arranged on the first contact part and the second contact part and are used for piercing an insulating layer on the surface of the flexible circuit board so as to form electric contact with the flexible circuit board, spaces extending along the arraying direction of the terminals are respectively formed between the two outer sides of the terminal and the side wall of the shell, the upper part of the inner side wall of the shell is provided with two elastic bodies along the arraying direction of the terminals, and the two elastic bodies are, the crimping device includes the flat plate portion and the vertical part that extends from the flat plate portion left and right sides the flat plate portion goes up parallel arrangement and has two bar holes that run through the flat plate portion, two the direction in bar hole is parallel with the long limit direction of flat plate portion, two the bar hole is used for passing flexible circuit board the lower part intermediate position of flat plate portion is provided with the crimping portion with the parallel direction in long limit of flat plate portion, the end of crimping portion is the halfcylinder.
According to a further technical scheme, bolt locking devices are arranged on the outer sides of the left side wall and the right side wall of the shell, the bolt locking devices are arranged on the outer sides of the left side wall and the right side wall of the shell respectively, protruding portions are formed on the inner sides of vertical portions of the crimping device respectively, and the protruding portions are locked with the bolt locking devices in a locking mode, so that the crimping device is fixed on the shell.
According to the technical scheme, a hole is formed in the bottom wall of the shell, the lower portion of the terminal is connected with a welding portion, and the welding portion is welded on the PCB after passing through the hole in the bottom wall.
According to a further technical scheme, the contact stabs are respectively arranged at the middle part of the inner side of the first contact part and the upper part of the inner side of the second contact part.
According to a further technical scheme, the elastic body is plate-shaped.
According to a further technical scheme, the elastic body and the side wall of the shell are fixed by gluing or buckling.
In a further aspect, the terminal includes a U-shaped body portion including a first contact portion and a second contact portion.
The invention has the beneficial effects that:
the elastomer that sets up on the casing lateral wall is arranged in the space between the lateral wall of the two outsides of the U-shaped portion of terminal and casing, at flexible circuit board crimping in-process, provides reaction force to the terminal to prevent terminal metal fatigue, can not appear after using for a long time, because the contact failure phenomenon that the elasticity of terminal weakens and leads to.
The lower side of the crimping device is provided with a crimping part, so that the flexible circuit board can be crimped onto the terminal with a large force, and the flexible circuit board and the terminal are firmly and electrically connected.
The terminal U type portion both sides are highly inconsistent, and high one side has the guide face, can guide the grafting of crimping portion, and the terminal damage that leads to because the direction deviation when can not appear pegging graft.
The flexible circuit board is approximately fixed through the strip-shaped holes arranged on the flat plate part of the crimping device, so that the flexible circuit board can be positioned and conveniently spliced.
The contact pricks are arranged on the inner side of the U-shaped body part of the terminal, so that the flexible circuit board can be quickly connected with the terminal without removing an insulating layer of the flexible circuit board in advance.
Drawings
Fig. 1 is a cross-sectional view of an electrical connection device of a flexible circuit board, perpendicular to a terminal arrangement direction.
Fig. 2 is a schematic cross-sectional view of a locking structure of the crimping device and the housing.
Fig. 3 is a plan view of the crimping apparatus.
Fig. 4 is a cross-sectional view of the electrical connection device of the flexible circuit board in an electrical connection state, perpendicular to the terminal arrangement direction.
Detailed Description
An electric connection device of a flexible circuit board comprises a shell 1, a terminal 2, a crimping device 3, a flexible circuit board 4 and a PCB 5, wherein the shell 1 comprises a side wall and a bottom wall, bolt locking devices 11 and 12 are arranged on the outer sides of the left side wall and the right side wall, a terminal accommodating part 13 is enclosed by the peripheral side walls, a plurality of terminals 2 are arranged in the terminal accommodating part 13, the terminal 2 is positioned in the middle of the terminal accommodating part, the terminal 2 comprises a U-shaped body part 21 and a welding part 22 connected to the lower part of the U-shaped body part, a hole is arranged on the bottom wall of the shell 1, the welding part 22 of the terminal 2 is welded on the PCB 5 through the hole of the bottom wall, the U-shaped body part 21 comprises a first contact part 211 and a second contact part 212, a contact spike 2111 is arranged in the middle part of the inner side of the first contact part 211, a contact spike 2121 is arranged on the upper part of the, thereby forming an electrical contact with the flexible circuit board 4, the first contact portion 211 is higher than the second contact portion 212, the top inner side of the first contact portion 211 is provided with a guide surface 2112, spaces 131, 132 extending along the arrangement direction of the terminals 2 are respectively formed between the two outer sides of the U-shaped main body portion of the terminals 2 and the side wall of the housing, the upper inner side of the longitudinal side wall of the housing 1 is provided with elastic bodies 14, 15 along the arrangement direction of the terminals 2, the elastic bodies 14, 15 are positioned in the spaces 131, 132 formed by the terminals 2 and the side wall, the pressure welding device 3 comprises a flat plate portion 31 and vertical portions 32, 33 extending from the left and right sides of the flat plate portion 31, the inner sides of the vertical portions 32, 33 are provided with protrusions 321, 331, which are locked with the locking devices 11, 12 on the outer sides of the left and right side walls of the housing 1, thereby fixing the pressure welding device 3 on the housing 1, the flat plate portion 31 is, 312, the directions of the two strip holes 311, 312 are parallel to the long side direction of the flat plate portion 31, the two strip holes 311, 312 are used for passing through the flexible circuit board 4, a crimping portion 34 is arranged in the middle of the lower portion of the flat plate portion 31 in the direction parallel to the long side of the flat plate portion 31, and the tail end of the crimping portion 34 is a semi-cylinder.
The process of realizing the electric connection of the electric connection device of the flexible circuit board is as follows: one end of the flexible circuit board 4 passes through one of the two strip-shaped holes 311, 312 on the inner side and extends downwards from the upper side of the flat plate part 31, bypasses the extreme end of the crimping part 34 and passes out from the other of the two strip-shaped holes 311, 312 on the inner side from bottom to top, a plurality of terminals 2 sequentially pass through the holes on the bottom wall of the shell 1 and are welded and fixed on the PCB 5, the crimping device 3 with the flexible circuit board 4 is pressed towards the terminals 2 of the shell 1, the extreme end of the crimping part 34 which surrounds the flexible circuit board 4 is firstly abutted against the guide surface 2112 of the first contact part 211 of the terminal 2, downward force is applied to make the crimping part 34 slide between the first contact part 211 and the second contact part 212, the flexible circuit board 4 is contacted with the contact pricks 2111, 2121 on the terminal 2, the flexible circuit board 4 is contacted with the insulation layer of the prick surface by the contact prick 2111, 2121 under the action of the pressing force of, at the same time, the U-shaped main body of the terminal 2 deforms in the direction of the side wall as the crimping device 3 is crimped, the elastic bodies 14 and 15 are pressed in the direction of the side wall, the elastic bodies 14 and 15 apply forces in opposite directions to the terminal 2, and finally the protrusions 321 and 331 of the crimping device 3 are locked with the locking devices 11 and 12 on the outer sides of the left and right side walls of the housing 1, so that the crimping device 3 is fixed to the housing 1, and an electrical connection state is established.
The device can realize quick electric connection between the flexible circuit board and the terminal, and stable electric contact, the two sides of the U-shaped part of the terminal are not consistent in height, positioning during plugging can be realized, the damage of the terminal caused by direction deviation during plugging can not occur, and poor contact caused by poor elasticity after the terminal is used for a long time can be prevented due to the arrangement of the elastic body on the side wall of the shell.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the invention as defined by the appended claims and their equivalents.
Claims (6)
1. An electric connection device of a flexible circuit board comprises a shell, terminals, a crimping device, the flexible circuit board and a PCB, wherein the shell comprises side walls and a bottom wall, the side walls on the periphery of the shell enclose a terminal accommodating part, a plurality of terminals are arranged in the middle of the terminal accommodating part, each terminal comprises a first contact part and a second contact part, the first contact part is higher than the second contact part, a guide surface is arranged on the inner side of the top of the first contact part, contact thorns are arranged on the first contact part and the second contact part and used for puncturing an insulating layer on the surface of the flexible circuit board so as to form electric contact with the flexible circuit board, the contact thorns on the first contact part are just opposite to the contact thorns on the second contact part, spaces extending along the arrangement direction of the terminals are respectively formed between the two outer sides of the terminals and the side walls of the shell, and two elastic bodies are arranged on the upper part of the inner, two elastomers are respectively located the space that the array orientation of the edge terminal that the outside both sides of terminal and the lateral wall of casing formed extends, crimping device includes the flat plate portion and the vertical part that extends from the flat plate portion left and right sides the last parallel arrangement of flat plate portion has two bar holes that run through the flat plate portion, two the direction in bar hole is parallel with the long limit direction of flat plate portion, two the bar hole is used for passing flexible circuit board the lower part intermediate position of flat plate portion is provided with crimping portion with the parallel direction in long limit of flat plate portion, the end of crimping portion is the halfcylinder, the lateral wall outside is provided with bolt-lock device respectively about the casing, the vertical part inboard of crimping device is formed with the jut respectively, the jut with bolt-lock device looks kayser, thereby will crimping device fixes on the casing.
2. The electrical connection device for flexible printed circuit as claimed in claim 1, wherein the bottom wall of the housing has a hole, the lower portion of the terminal has a soldering portion, and the soldering portion is soldered to the PCB after passing through the hole of the bottom wall.
3. The electrical connection device of claim 1, wherein the contact pins are respectively disposed at the middle part of the inner side of the first contact portion and the upper part of the inner side of the second contact portion.
4. The electrical connecting device for flexible circuit board as claimed in claim 1, wherein said two elastic bodies are plate-shaped.
5. The electrical connection device for flexible circuit board as claimed in claim 4, wherein the two elastic bodies are fixed to the side wall of the housing by gluing or snapping.
6. The electrical connection device of claim 1, said terminal comprising a U-shaped body portion, said U-shaped body portion including a first contact portion and a second contact portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811117074.8A CN109273880B (en) | 2018-09-25 | 2018-09-25 | Electric connection device of flexible circuit board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811117074.8A CN109273880B (en) | 2018-09-25 | 2018-09-25 | Electric connection device of flexible circuit board |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109273880A CN109273880A (en) | 2019-01-25 |
| CN109273880B true CN109273880B (en) | 2020-08-21 |
Family
ID=65198853
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811117074.8A Active CN109273880B (en) | 2018-09-25 | 2018-09-25 | Electric connection device of flexible circuit board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109273880B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7232143B2 (en) * | 2019-07-19 | 2023-03-02 | 日本航空電子工業株式会社 | connector |
| CN114725630A (en) * | 2022-03-30 | 2022-07-08 | 中创新航科技股份有限公司 | Battery device |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2291279B (en) * | 1994-06-24 | 1998-07-15 | Thomas & Betts Corp | Improvements in or relating to electrical connection apparatus |
| CN2365786Y (en) * | 1998-10-09 | 2000-02-23 | 杨建军 | Electric mobile connecting socket |
| JP4291800B2 (en) * | 2005-06-21 | 2009-07-08 | 日本圧着端子製造株式会社 | Electrical connection device and connector |
| CN201146260Y (en) * | 2007-12-11 | 2008-11-05 | 天瑞电子科技发展(昆山)有限公司 | Connecting device |
| JP6312028B2 (en) * | 2014-01-09 | 2018-04-18 | パナソニックＩｐマネジメント株式会社 | Cable holding member, plug connector, connector device, and method of assembling plug connector |
-
2018
- 2018-09-25 CN CN201811117074.8A patent/CN109273880B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN109273880A (en) | 2019-01-25 |
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| TR01 | Transfer of patent right |
Effective date of registration: 20210312 Address after: No. 816, Nanli village, aoshanwei sub district office, Jimo District, Qingdao, Shandong 266000 Patentee after: Qingdao Zhonglinuo Information Technology Co.,Ltd. Address before: 266000 Songling Road, Laoshan District, Qingdao, Shandong Province, No. 99 Patentee before: Qingdao University Of Science And Technology |
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| TR01 | Transfer of patent right |