CN109216977B - Electric connection device of circuit board - Google Patents
Electric connection device of circuit board Download PDFInfo
- Publication number
- CN109216977B CN109216977B CN201811116302.XA CN201811116302A CN109216977B CN 109216977 B CN109216977 B CN 109216977B CN 201811116302 A CN201811116302 A CN 201811116302A CN 109216977 B CN109216977 B CN 109216977B
- Authority
- CN
- China
- Prior art keywords
- circuit board
- terminal
- flat plate
- shell
- contact part
- 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.)
- Active
Links
- 238000002788 crimping Methods 0.000 claims abstract description 17
- 230000000149 penetrating effect Effects 0.000 claims abstract description 7
- 238000004026 adhesive bonding Methods 0.000 claims description 2
- 238000005476 soldering Methods 0.000 claims 2
- 230000006835 compression Effects 0.000 claims 1
- 238000007906 compression Methods 0.000 claims 1
- 238000003466 welding Methods 0.000 description 6
- 239000002184 metal Substances 0.000 description 4
- XOMKZKJEJBZBJJ-UHFFFAOYSA-N 1,2-dichloro-3-phenylbenzene Chemical compound ClC1=CC=CC(C=2C=CC=CC=2)=C1Cl XOMKZKJEJBZBJJ-UHFFFAOYSA-N 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
Images
Classifications
-
- 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
- H01R12/72—Coupling devices for rigid printing circuits or like structures coupling with the edge of the rigid printed circuits or like structures
- H01R12/721—Coupling devices for rigid printing circuits or like structures coupling with the edge of the rigid printed circuits or like structures cooperating directly with the edge of the rigid printed circuits
-
- 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
- H01R12/72—Coupling devices for rigid printing circuits or like structures coupling with the edge of the rigid printed circuits or like structures
- H01R12/73—Coupling devices for rigid printing circuits or like structures coupling with the edge of the rigid printed circuits or like structures connecting to other rigid printed circuits or like structures
- H01R12/735—Printed circuits including an angle between each other
- H01R12/737—Printed circuits being substantially perpendicular to each other
-
- 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
-
- 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
Landscapes
- Coupling Device And Connection With Printed Circuit (AREA)
Abstract
The invention discloses an electric connection device of a circuit board, which comprises a shell, a terminal, a crimping device, the circuit board and a bottom PCB, wherein the terminal comprises a convex arc part electrically contacted with the circuit board, the terminal also comprises a first contact part and a second contact part, the first contact part is higher than the second contact part, two elastic bodies are arranged on the upper part of the inner side of the side wall of the shell along the arrangement direction of the terminal, 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, a strip-shaped hole penetrating through the flat plate part is arranged on the flat plate part, and a first clamp body and a second clamp body are arranged on the lower part of the strip-shaped hole at the middle position of the lower part 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 circuit board.
Background
The application of circuit board in electronic equipment is extremely wide, and it is usually connected with a plurality of terminals in the electric connector electrically to realize the transmission of signal, and the existing circuit board connecting device has the following problems: the terminal is easily damaged due to the direction deviation when the circuit board is inserted; in addition, the terminals in the electrical connector are usually contacted with the conductive parts in the circuit board by means of their own elasticity, however, after several times of insertion and extraction, the metal forming the terminals will produce metal fatigue, the elasticity is weakened, and even the phenomenon of poor contact with the conductive parts of the circuit board occurs.
Disclosure of Invention
The invention aims to provide an electric connection device of a circuit board, which can realize stable and quick connection between the circuit board and a terminal, can prevent metal fatigue of the terminal, and can prevent the terminal from generating poor contact with the circuit board due to the weakening of elasticity after long-time use.
The invention relates to an electric connection device of a circuit board, which comprises a shell, terminals, a crimping device, the circuit board and a bottom PCB, wherein the shell comprises side walls and a bottom wall, the side walls at the periphery enclose a terminal accommodating part, a plurality of terminals are arranged at the middle position of the terminal accommodating part in an arrayed manner, each 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 of the first contact part is provided with a guide surface, the opposite sides in the first contact part and the second contact part are respectively provided with a convex arc part which is electrically connected with the circuit board, a space which extends along the array direction of the terminals is respectively formed between the two outer sides of the terminal and the side walls of the shell, the upper part of the inner side walls of the shell is provided with two elastic bodies along the array direction of the terminals, and the two elastic bodies are respectively positioned in the space which the two, 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, wherein a strip-shaped hole penetrating through the flat plate part is formed in the middle of the flat plate part, the direction of the strip-shaped hole is parallel to the long side direction of the flat plate part, the strip-shaped hole is used for penetrating through a circuit board, a first clamp body and a second clamp body are arranged at the middle of the lower part of the flat plate part, and the surfaces, opposite to the first clamp body and the second clamp body, of the first clamp body and the second clamp body form a clamping surface which is clamped by the circuit board penetrating through the strip-shaped hole.
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 respectively, protruding portions are formed on the inner sides of the 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 bottom PCB after passing through the hole in the bottom wall.
According to a further technical scheme, the first clamp body and the second clamp body are triangular.
According to a further technical scheme, the two elastic bodies are plate-shaped.
According to a further technical scheme, the two elastic bodies and the side wall of the shell are fixed by gluing or buckling.
According to a further technical scheme, the two clamping surfaces are rough surfaces.
In a further aspect, the terminal includes a U-shaped body portion, and the first contact portion and the second contact portion constitute the U-shaped body 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, and at the circuit board grafting 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 terminal U type portion both sides height is inconsistent, and high one side has the guide face, can guide the grafting of circuit board, because the terminal damage that the direction deviation leads to when can not appearing pegging graft.
Under the electric connection state, the electric connection device not only clamps the circuit board by the first clamp body and the second clamp body except the acting force of the terminal on the circuit board, thereby increasing the stability of the circuit board and preventing the circuit board from being separated due to vibration and other reasons.
Drawings
Fig. 1 is a sectional view of an electrical connection device of a circuit board perpendicular to a terminal arrangement direction.
FIG. 2 is a cross-sectional view of a crimping device and a locking structure of a 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 circuit board in an electrical connection state, taken perpendicular to the direction of arrangement of the terminals.
Detailed Description
An electric connection device of a circuit board comprises a shell 1, a terminal 2, a crimping device 3, a circuit board 4 and a bottom 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 bottom PCB 5 after passing through the hole of the bottom wall, the U-shaped body part 21 of the terminal 2 comprises a first contact 211 and a second contact part 212, the first contact part 211 is higher than the second contact part 212, a guide surface 2111 is arranged on the inner side of the top of the first contact part 211, convex arc parts electrically connected with golden fingers, spaces 131 and 132 extending along the arrangement direction of the terminals 2 are respectively formed between the two outer sides of the U-shaped main body part of the terminal 2 and the side wall of the housing, elastic bodies 14 and 15 are arranged on the upper part of the inner side of the longitudinal side wall of the housing 1 along the arrangement direction of the terminals 2, the elastic bodies 14 and 15 are positioned in the spaces 131 and 132 formed by the terminals 2 and the side wall, the pressure welding device 3 comprises a flat plate part 31 and vertical parts 32 and 33 extending from the left side and the right side of the flat plate part 31, protruding parts 321 and 331 are formed on the inner sides of the vertical parts 32 and 33, the protruding parts 321 and 331 are locked with the locking devices 11 and 12 on the outer sides of the left side wall and the right side wall of the housing 1, so that the pressure welding device 3 is fixed on the housing 1, a strip-shaped hole 311 penetrating through the flat plate part 31 is formed in the middle position of the flat plate part 31, the direction of the strip-shaped hole, the lower part of the strip-shaped hole 311 is provided with a first clamp body 34 and a second clamp body 35, the first clamp body 34 and the second clamp body 35 are both triangular, the surfaces of the first clamp body 34 opposite to the second clamp body 35 form clamping surfaces clamped with the circuit board 4 passing through the strip-shaped hole 311, and the surfaces of the two clamping surfaces are rough so as to increase the friction force between the two clamping surfaces and the circuit board 4.
The process of realizing the electric connection of the electric connection device of the circuit board is as follows: one end of the circuit board 4 is inserted through the middle strip-shaped hole 311 on the flat plate part 31 and clamped with the first clamp body 34 and the second clamp body 35 below the flat plate part 31, a plurality of terminals 2 are sequentially inserted through the holes on the bottom wall of the shell 1 and are welded and fixed on the bottom PCB 5, the crimping device 3 with the circuit board 4 is pressed down towards the terminals 2 of the shell 1, the tail end of the circuit board 4 is firstly abutted against the guide surface 2111 of the first contact part 211 of the terminal 2, the circuit board 4 slides into the space between the first contact part 211 and the second contact part 212 by exerting downward force, the golden finger (i.e. the conductive part) on the circuit board 4 is electrically contacted with the convex arc parts on the first contact part 211 and the second contact part 212 on the terminal 2, simultaneously, the U-shaped body part 21 of the terminal 2 deforms towards the side wall direction along with the crimping of the crimping device 3, and extrudes the elastic bodies 34 and 35 towards the side wall direction, and, 35, the first contact portion 211 and the second contact portion 212 of the terminal 2 are biased in opposite directions, and finally the protrusions 321 and 331 of the crimping device 3 are latched with the latch 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 the stable electric contact between the circuit board and the terminal, the two sides of the U-shaped part of the terminal are not consistent in height, the positioning during the plugging can be realized, the damage of the terminal caused by the direction deviation during the plugging can not occur, the arrangement of the elastic body on the side wall of the shell can prevent the poor contact caused by the poor elasticity after the terminal is used for a long time, and in the electric connecting device, besides the acting force of the terminal on the circuit board, the first clamp body and the second clamp body also clamp the circuit board, so that the circuit board is prevented from being separated out due to the vibration and the like.
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 circuit board comprises a shell, a terminal, a crimping device, a circuit board and a bottom PCB, wherein the shell comprises a side wall and a bottom wall, the side wall at the periphery of the shell encloses a terminal accommodating part, a plurality of terminals are arranged at the middle position of the terminal accommodating part, 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 of the first contact part is provided with a guide surface, the opposite sides in the first contact part and the second contact part are respectively provided with a convex arc part electrically connected with the circuit board, the convex arc part on the first contact part and the convex arc part on the second contact part are right opposite, spaces extending along the arrangement 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 arrangement direction of the terminals, the two elastic bodies are respectively positioned in the spaces extending along the arrangement direction, the two elastic bodies are plate-shaped, the upper surfaces of the two elastic bodies are flush with the upper surface of the shell, the compression joint device comprises a flat plate part and vertical parts extending from the left side and the right side of the flat plate part, a strip-shaped hole penetrating through the flat plate part is arranged at the middle position of the flat plate part, the direction of the strip-shaped hole is parallel to the long side direction of the flat plate part, the strip-shaped hole is used for penetrating through the circuit board, a first clamp body and a second clamp body are arranged at the lower part of the strip-shaped hole in the middle of the lower part of the flat plate part, the opposite surfaces of the first clamp body and the second clamp body form a clamping surface clamped with the circuit board passing through the strip-shaped hole, the outer sides of the left and right side walls of the shell are respectively provided with a bolt locking device, the inner sides of the vertical parts of the crimping devices are respectively provided with a protrusion part, the protrusion is latched with the latch device, thereby fixing the crimping device to the housing.
2. The electrical connection device for circuit board as claimed in claim 1, wherein the bottom wall of the housing has a hole, and the lower portion of the terminal has a soldering portion connected thereto, the soldering portion passing through the hole of the bottom wall and then being soldered to the bottom PCB.
3. The electrical connector for circuit board as claimed in claim 1, wherein said first and second clip bodies are triangular.
4. The electrical connection device for circuit board as claimed in claim 1, wherein the two elastic bodies are fixed to the side wall of the housing by gluing or snapping.
5. An electrical connection device for circuit boards as claimed in claim 4 wherein both said clamping surfaces are roughened.
6. An electrical connector for a circuit board according to claim 1, wherein said terminal comprises a U-shaped body portion, and said first contact portion and said second contact portion constitute said U-shaped body portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811116302.XA CN109216977B (en) | 2018-09-25 | 2018-09-25 | Electric connection device of circuit board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811116302.XA CN109216977B (en) | 2018-09-25 | 2018-09-25 | Electric connection device of circuit board |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109216977A CN109216977A (en) | 2019-01-15 |
| CN109216977B true CN109216977B (en) | 2020-07-03 |
Family
ID=64985210
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811116302.XA Active CN109216977B (en) | 2018-09-25 | 2018-09-25 | Electric connection device of circuit board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109216977B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102332648A (en) * | 2010-05-31 | 2012-01-25 | 广濑电机株式会社 | Electric connector for flat conductor |
| CN103167789A (en) * | 2011-12-09 | 2013-06-19 | 卓英社有限公司 | Clip for fixing shield case for shielding emi and shield apparatus using the same |
| CN107516782A (en) * | 2016-06-16 | 2017-12-26 | 美国莫列斯有限公司 | Edge clipping attachment means |
| CN107658584A (en) * | 2017-08-28 | 2018-02-02 | 番禺得意精密电子工业有限公司 | Connector |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2080715U (en) * | 1990-07-06 | 1991-07-10 | 陈春雅 | Electronic connection device with three-point contact |
| CN2276204Y (en) * | 1996-11-26 | 1998-03-11 | 鸿海精密工业股份有限公司 | Terminal connector |
| CN2445476Y (en) * | 2000-10-10 | 2001-08-29 | 富士康(昆山)电脑接插件有限公司 | Connector device |
| JP2005004994A (en) * | 2003-06-09 | 2005-01-06 | Jst Mfg Co Ltd | Plug type connector and electric connector having this |
| US7189121B1 (en) * | 2006-09-26 | 2007-03-13 | Hon Hai Precision Ind. Co., Ltd. | PCB type connector |
| JP5601215B2 (en) * | 2011-01-19 | 2014-10-08 | 株式会社デンソー | Electronic equipment |
| US8529282B1 (en) * | 2012-03-16 | 2013-09-10 | Tyco Electronics Corporation | Daughter card assembly having a latching sub-assembly with a coupling arm extending in an insertion direction |
| CN203967327U (en) * | 2014-05-30 | 2014-11-26 | 乐清市日腾电子有限公司 | The AV terminal that can automatically assemble |
| CN104577458A (en) * | 2015-02-03 | 2015-04-29 | 仪特电子工业（宁波）有限公司 | CATV (community antenna television) connecting terminal with fatigue-resistant holding structure |
| TW201711305A (en) * | 2015-09-10 | 2017-03-16 | 宜鼎國際股份有限公司 | M.2 interface connector and M.2 interface seat insertedly provided thereof |
-
2018
- 2018-09-25 CN CN201811116302.XA patent/CN109216977B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102332648A (en) * | 2010-05-31 | 2012-01-25 | 广濑电机株式会社 | Electric connector for flat conductor |
| CN103167789A (en) * | 2011-12-09 | 2013-06-19 | 卓英社有限公司 | Clip for fixing shield case for shielding emi and shield apparatus using the same |
| CN107516782A (en) * | 2016-06-16 | 2017-12-26 | 美国莫列斯有限公司 | Edge clipping attachment means |
| CN107658584A (en) * | 2017-08-28 | 2018-02-02 | 番禺得意精密电子工业有限公司 | Connector |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109216977A (en) | 2019-01-15 |
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| TR01 | Transfer of patent right |
Effective date of registration: 20240429 Address after: Room 1-2034, Building 4, Fengjing Mall, No. 9135, Zhufeng Road, Jinshan District, Shanghai, 201500 Patentee after: SHANGHAI QINXUAN INFORMATION TECHNOLOGY Co.,Ltd. Country or region after: China Address before: No. 53, Zhengzhou Road, North District, Qingdao, Shandong Patentee before: QINGDAO University OF SCIENCE AND TECHNOLOGY Country or region before: China |
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| TR01 | Transfer of patent right |