CN113067176B - Board-to-board connector - Google Patents
Board-to-board connector Download PDFInfo
- Publication number
- CN113067176B CN113067176B CN202110178443.XA CN202110178443A CN113067176B CN 113067176 B CN113067176 B CN 113067176B CN 202110178443 A CN202110178443 A CN 202110178443A CN 113067176 B CN113067176 B CN 113067176B
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- CN
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- Prior art keywords
- board
- female end
- middle island
- connector
- island
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
- H01R12/70—Coupling devices
- H01R12/71—Coupling devices for rigid printing circuits or like structures
- H01R12/712—Coupling devices for rigid printing circuits or like structures co-operating with the surface of the printed circuit or with a coupling device exclusively provided on the surface of the printed circuit
- H01R12/716—Coupling device provided on the PCB
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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
- H01R13/646—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00 specially adapted for high-frequency, e.g. structures providing an impedance match or phase match
- H01R13/6461—Means for preventing cross-talk
- H01R13/6471—Means for preventing cross-talk by special arrangement of ground and signal conductors, e.g. GSGS [Ground-Signal-Ground-Signal]
Landscapes
- Details Of Connecting Devices For Male And Female Coupling (AREA)
Abstract
The invention discloses a board-to-board connector, which comprises a female end connector, wherein the female end connector comprises a base body and a spacer, a middle island is arranged on the base body, two opposite sides of the middle island are respectively provided with a row of female end terminals, the side surface of the middle island is provided with a holding tank for holding partial areas of the female end terminals, at least part of the spacer is embedded in the middle island, the spacer is provided with a plurality of through holes, and partial areas of the middle island are filled with the through holes. Part of the materials of the middle island are filled in the through holes on the isolating pieces, so that the binding force between the middle island and the isolating pieces is effectively improved, meanwhile, the middle island can be prevented from being separated into two mutually independent parts, the structural strength of the middle island is effectively ensured, the risk of cracking of the middle island is reduced, and the structural stability of the board-to-board connector is favorably ensured; the existence of spacing block can keep apart two rows of female end terminals, the signal interference between two rows of female end terminals that has significantly reduced has improved the performance of board to board connector.
Description
Technical Field
The invention relates to the technical field of connectors, in particular to a board-to-board connector.
Background
Along with the rapid development of electronic communication technology, the board to board connector is more and more extensive in the application on electronic equipment, and current board to board connector is including the public end connector and the female end connector of pegging graft mutually, and female end connector includes the pedestal usually and locates two rows of female end terminals on the pedestal, in order to improve female end connector's shielding performance, general can set up the female end shielding frame that surrounds the pedestal in industry on the pedestal. Although the shielding capability of the board-to-board connector can be improved to a certain extent by arranging the female terminal shielding frame, the performance of the board-to-board connector is improved, signal interference still exists between two rows of female terminals, and the radio frequency performance of the board-to-board connector is influenced.
For this reason, can set up the spacer that is used for separating two rows of female end terminals in the partial female end connector, but the existence of spacer can make the well island of pedestal have the risk of fracture, leads to the female end connector structure unstable.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: provided is a high-performance board-to-board connector having a stable structure.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows: the board is to board connector, including female end connector, female end connector includes pedestal and spacing block, the island has in the pedestal, the relative both sides in island are equipped with one row of female end terminal respectively, be equipped with on the side in island and be used for holding the partial region's of female end terminal holding tank, the at least partial inlaying of spacing block is located in the island, be equipped with a plurality of through-hole on the spacing block, the partial region packing in island the through-hole.
The invention has the beneficial effects that: part of the materials of the middle island are filled in the through holes on the isolating pieces, so that the binding force between the middle island and the isolating pieces is effectively improved, meanwhile, the middle island can be prevented from being separated into two mutually independent parts, the structural strength of the middle island is effectively ensured, the risk of cracking of the middle island is reduced, and the structural stability of the board-to-board connector is favorably ensured; the existence of spacing block can keep apart two rows of female end terminals, the signal interference between two rows of female end terminals that has significantly reduced has improved the performance of board to board connector.
Drawings
Fig. 1 is a schematic structural diagram of a female connector in a board-to-board connector according to a first embodiment of the present invention;
fig. 2 is a schematic structural diagram of a part of a structure of a female terminal connector in a board-to-board connector according to a first embodiment of the present invention (after hiding the female terminal and a seat);
FIG. 3 is a cross-sectional view of the structure shown in FIG. 2;
fig. 4 is a schematic structural diagram of a spacer in a female connector in a board-to-board connector according to a first embodiment of the present invention;
fig. 5 is a diagram illustrating simulation test results of a spacer in a board-to-board connector according to a first embodiment of the present invention.
Description of reference numerals:
1. a base body;
2. a separator; 21. a through hole; 22. a fastening groove; 23. avoiding empty areas;
3. a middle island; 31. accommodating grooves; 32. positioning a groove;
4. a female terminal;
5. a shield frame; 51. a body; 52. bridging; 521. a U-shaped section; 522. an extension section; 523. an insertion portion;
61. a first fastening part; 62. a second buckling part.
Detailed Description
In order to explain the technical contents, the objects and the effects of the present invention in detail, the following description is made with reference to the accompanying drawings in combination with the embodiments.
Referring to fig. 1 to 5, the board-to-board connector includes a female terminal connector, where the female terminal connector includes a base body 1 and a spacer 2, the base body 1 has a middle island 3, two opposite sides of the middle island 3 are respectively provided with a row of female terminal terminals 4, a side surface of the middle island 3 is provided with a receiving groove 31 for receiving a partial region of the female terminal 4, the spacer 2 is at least partially embedded in the middle island 3, the spacer 2 is provided with a plurality of through holes 21, and the partial region of the middle island 3 is filled with the through holes 21.
From the above description, the beneficial effects of the present invention are: part of the material of the middle island 3 fills the through holes 21 on the spacing pieces 2, so that the binding force between the middle island 3 and the spacing pieces 2 is effectively improved, meanwhile, the middle island 3 can be prevented from being divided into two mutually independent parts, the structural strength of the middle island 3 is effectively ensured, the risk of cracking of the middle island 3 is reduced, and the structural stability of the board-to-board connector is favorably ensured; two rows of female terminal 4 can be kept apart in the existence of spacing block 2, and the signal interference between two rows of female terminal 4 that have significantly reduced has improved the performance of board to board connector.
Further, the diameter of the through hole 21 is less than or equal to 0.38mm.
It can be known from the above description that the diameter of the through hole 21 is suitable, which not only can improve the binding force between the spacer 2 and the middle island 3, but also can enhance the structural stability of the seat body 1, and can ensure the isolation effect of the spacer 2.
Furthermore, the number of the through holes 21 is multiple, and the through holes 21 with multiple number are arranged in at least two rows.
As is apparent from the above description, providing a plurality of through holes 21 on the spacer 2 can further improve the structural stability of the board-to-board connector.
Further, the female terminal connector further comprises a shielding frame 5 surrounding the seat body 1.
As is apparent from the above description, the existence of the shield frame 5 can reduce the outward leakage of the board-to-board connector signal, and at the same time, can reduce the interference of the external signal to the female terminal 4. Optionally, the shielding frame 5 is connected with the base 1 in a snap-fit manner.
Further, the shielding frame 5 is in contact conduction with the spacer 2.
As can be seen from the above description, the two rows of female terminals 4 can be effectively isolated from each other.
Further, the shielding frame 5 includes a body 51 and a bridge 52 connected to each other, and the bridge 52 is in contact conduction with the spacer 2.
Further, the two ends of the spacer 2 are respectively connected with the connecting bridges 52.
As can be seen from the above description, the two rows of female terminals 4 are respectively located in two isolation regions with enclosed peripheries, which greatly reduces signal crosstalk and leakage inside the board-to-board connector and signal interference of external signals to the board-to-board connector.
Further, a first buckling part 61 is arranged on the connecting bridge 52, and a second buckling part 62 matched with the first buckling part 61 is arranged on the spacer 2.
As can be seen from the above description, the shielding frame 5 and the spacer 2 are stably conducted, which is beneficial to ensuring the isolation effect of the spacer 2.
Further, the bridge 52 includes an elastic arm and an extending portion 523 connected to each other, the elastic arm connects the extending portion 523 to the body 51, the first fastening portion 61 is disposed on the elastic arm, the spacer 2 is provided with a fastening groove 22 for the extending portion 523 to extend into, and one side of the fastening groove 22 close to the body 51 is provided with the second fastening portion 62.
As can be seen from the above description, the first fastening portion 61 and the second fastening portion 62 are matched to achieve conduction between the shielding frame 5 and the spacer 2, and to improve the stability of connection between the shielding frame 5 and the seat body 1, so as to improve the structural stability of the board-to-board connector.
Further, a clearance area 23 for clearance of the elastic arm is arranged at the upper part of the end part of the isolation sheet 2.
As can be seen from the above description, the existence of the clearance area 23 can reduce the thickness of the female connector, so that the board-to-board connector can be more light, thin and miniaturized.
Example one
Referring to fig. 1 to 5, a first embodiment of the present invention is: please refer to fig. 1 and 2, the board-to-board connector includes a male connector and a female connector which are in plug-in fit, the female connector includes a base 1 and a spacer 2, the base 1 has a middle island 3, two opposite sides of the middle island 3 are respectively provided with a row of female terminals 4, a side surface of the middle island 3 is provided with a holding groove 31 for holding a partial region of the female terminals 4, at least a part of the spacer 2 is embedded in the middle island 3, the spacer 2 is provided with a plurality of through holes 21, the partial region of the middle island 3 is filled with the through holes 21, specifically, the spacer 2 divides the middle island 3 into two parts, and the two parts are connected with each other through a connecting post part for filling the through holes 21.
Female end connector is still including encircleing the shielding frame 5 of pedestal 1 setting, shielding frame 5 ground connection, optional, shielding frame 5 with 1 buckle of pedestal is connected.
The shielding frame 5 is in contact conduction with the spacer 2, the shielding frame 5 comprises a body 51 and a connecting bridge 52 which are connected, and the connecting bridge 52 is in contact conduction with the spacer 2. Preferably, the connecting bridges 52 are respectively connected to two ends of the spacer 2, that is, the shielding frame 5 and the spacer 2 form two continuous annular shielding structures, and the two rows of the female terminals 4 are respectively located in the different annular shielding structures, so that signal crosstalk between the two rows of the female terminals 4 is greatly reduced. Preferably, the body 51 is a ring frame structure with no gap and closed periphery, so that signal leakage and external signal interference are reduced.
In a preferred embodiment, the bottom surface of the isolation sheet 2 is grounded, and optionally, the bottom surface of the isolation sheet 2 is flush with the bottom surface of the body 51.
Referring to fig. 2 to 4, in detail, a first fastening portion 61 is disposed on the connecting bridge 52, and a second fastening portion 62 matched with the first fastening portion 61 is disposed on the spacer 2. More specifically, the bridge 52 includes the elastic arm and the stretching portion 523 that link to each other, the elastic arm is connected the stretching portion 523 and the body 51, the first buckling portion 61 is disposed on the elastic arm, the spacer 2 is provided with the buckling groove 22 for the stretching portion 523 to stretch into, and one side of the buckling groove 22 close to the body 51 is provided with the second buckling portion 62.
As shown in fig. 3 and 4, in the embodiment, the top of the end portion of the spacer 2 is provided with a clearance area 23 for avoiding the elastic arm, so that the thickness of the female terminal connector can be reduced, and the board-to-board connector can be more light, thinner and miniaturized. In detail, the elastic arm includes a U-shaped section 521 and an extension section 522, one end of the U-shaped section 521 is connected to the body 51, the other end of the U-shaped section 521 is connected to the extension section 522, one end of the extension section 522 far away from the U-shaped section 521 is connected to the extending portion 523, and the space avoiding area 23 is used for avoiding the extension section 522.
As shown in fig. 1, further, for the convenience of assembly, the end of the middle island 3 is further provided with a positioning groove 32 for limiting the extension section 522.
The number of the through holes 21 is multiple, and the through holes 21 with multiple number are arranged in at least two rows.
It is easy to understand that the number, shape and size of the through holes 21 can be set as required, but the applicant finds through experiments that when the through holes 21 are circular and have a diameter less than or equal to 0.38mm, the spacer 2 can compromise the shielding performance of itself and the structural stability of the middle island 3.
Engineering simulation experiment
Fifteen through holes with the diameter smaller than or equal to 0.38mm are formed in the first isolating sheet, fifteen through holes are formed in two rows, one row is provided with six through holes, and the other row is provided with nine through holes.
Fifteen through holes with the diameter larger than 0.38mm are formed in the second isolating sheet, the fifteen through holes are arranged in two rows, one row is provided with six through holes, and the other row is provided with nine through holes.
And the third spacer is not provided with a through hole.
In contrast, the customer's requirements for the isolation of the spacers.
The results of the engineering simulation are shown in table 1,
table 1 table of results of engineering simulation experiment
The farther the isolation degree value of the spacer is from the point 0, the better the isolation effect is, otherwise, the worse the isolation effect is, as can be seen from table 1 and fig. 5, the test results of the first spacer and the third spacer at each test frequency band all meet the requirements of the comparison group, while the test results of the second spacer at some frequency bands (especially high frequency) exceed the limits of the comparison group, and when the diameter of the circular through hole formed in the spacer is less than or equal to 0.38mm, the isolation effect is very close to that of the spacer without the hole, thus it can be seen that when the circular hole with the diameter less than or equal to 0.38mm is formed in the spacer, the self-shielding performance and the structural stability of the middle island can be considered by the spacer.
In summary, the board-to-board connector provided by the invention has good structural stability and good performance.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent changes made by using the contents of the present specification and the drawings, or applied directly or indirectly to the related technical fields, are included in the scope of the present invention.
Claims (4)
1. The board is to board connector, including female end connector, female end connector includes pedestal and spacing block, the island has in the pedestal, the relative both sides in island are equipped with one row of female end terminal respectively, be equipped with on the side in island and be used for holding the regional holding tank of part of female end terminal, at least partial the inlaying of spacing block is located in the island, its characterized in that: a plurality of through holes are formed in the isolating sheet, and partial areas of the middle island are filled with the through holes; the female end connector also comprises a shielding frame surrounding the seat body; the shielding frame comprises a body and a connecting bridge, the connecting bridge comprises an elastic arm and an extending part which are connected, and the elastic arm is connected with the extending part and the body; two ends of the isolating piece are respectively provided with a clamping groove for the extending part to extend into; the elastic arm is provided with a first buckling part, and one side of the buckling groove close to the body is provided with a second buckling part matched with the first buckling part.
2. The board-to-board connector according to claim 1, wherein: the diameter of the through hole is less than or equal to 0.38mm.
3. The board-to-board connector according to claim 1, wherein: the number of the through holes is a plurality, and the through holes are arranged in at least two rows.
4. The board-to-board connector according to claim 1, wherein: and the upper part of the end part of the isolating sheet is provided with a space avoiding area for avoiding the elastic arm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110178443.XA CN113067176B (en) | 2021-02-09 | 2021-02-09 | Board-to-board connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110178443.XA CN113067176B (en) | 2021-02-09 | 2021-02-09 | Board-to-board connector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113067176A CN113067176A (en) | 2021-07-02 |
| CN113067176B true CN113067176B (en) | 2022-10-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110178443.XA Active CN113067176B (en) | 2021-02-09 | 2021-02-09 | Board-to-board connector |
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| CN (1) | CN113067176B (en) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204030057U (en) * | 2014-07-22 | 2014-12-17 | 实盈电子(东莞)有限公司 | A kind of Board-to-Board Electrical Connector |
| JP7108531B2 (en) * | 2018-12-27 | 2022-07-28 | モレックス エルエルシー | connector assembly |
| CN110380289A (en) * | 2019-06-27 | 2019-10-25 | 深圳市长盈精密技术股份有限公司 | Plate is to plate socket, plug and component |
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| CN113067176A (en) | 2021-07-02 |
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