CN105357870A - Printed circuit board based on modular structure and corresponding mother board installation method - Google Patents
Printed circuit board based on modular structure and corresponding mother board installation method Download PDFInfo
- Publication number
- CN105357870A CN105357870A CN201510820661.3A CN201510820661A CN105357870A CN 105357870 A CN105357870 A CN 105357870A CN 201510820661 A CN201510820661 A CN 201510820661A CN 105357870 A CN105357870 A CN 105357870A
- Authority
- CN
- China
- Prior art keywords
- printed circuit
- circuit board
- connector
- motherboard
- hole
- 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
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/11—Printed elements for providing electric connections to or between printed circuits
- H05K1/111—Pads for surface mounting, e.g. lay-out
- H05K1/112—Pads for surface mounting, e.g. lay-out directly combined with via connections
- H05K1/113—Via provided in pad; Pad over filled via
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/14—Structural association of two or more printed circuits
- H05K1/141—One or more single auxiliary printed circuits mounted on a main printed circuit, e.g. modules, adapters
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/09—Shape and layout
- H05K2201/09209—Shape and layout details of conductors
- H05K2201/09218—Conductive traces
- H05K2201/09263—Meander
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Coupling Device And Connection With Printed Circuit (AREA)
Abstract
The invention discloses a printed circuit board based on a modular structure. The printed circuit board has a plurality of connector installing hole groups. Each installing hole group comprises a plurality of through holes. Each through hole is designed in a runway shape. The bonding pad of each through hole is also designed in a runway shape. The advantages are that accumulated tolerance of aperture of a mother board and dimension of a function module is counteracted by increasing the transverse length of the through holes, thereby guaranteeing smooth docking of a connector socket and an internal connector of the function module, and preventing installation damage.
Description
Technical field
The present invention relates to printed board and structure-design technique field, particularly relate to a kind of printed circuit board based on modular construction and corresponding motherboard installation method.
Background technology
At present, aerospace electron unit many employings Modular Structure Design, modular construction is for often organizing printed circuit board or the corresponding independently frame-type internal structure of circuit function module design, the external structure of each framework is substantially identical, this design is convenient to the design of individual module, the rigidity of structure is comparatively strong, has good extensibility.
Be different from structure-integrated design, modular structure design must solve the transmission problem of signal between each functional module, not only will ensure the reliability that signal connects, and also will take into full account its impact on electronics unit integral layout and Weight control.Adopting maximum in the electronics unit of modular structure design is following two kinds of Signal transmissions:
1, inside cable connected mode.In this connected mode, utilize welding lead to form electrical connection between each functional module internal connector, and fixed by conducting wire binding and epoxy resin, form electronics unit inside cable.Which is simple and reliable, but inside cable weight is comparatively large, and the volume taken is comparatively large, adds the volume and weight of total part, does not meet aerospace electron unit product high density, light-weighted development trend now;
2, motherboard connected mode.In this connected mode, motherboard has been installed connector body, its connecting contact pin is welded on motherboard through manhole, utilizes printed circuit to form electrical connection between each electric connector.Which realizes the connection between signal with printed board cabling replacement wire, makes the weight saving of total part, is the first-selected connected mode that electronics unit internal signal connects.
Motherboard connected mode has following characteristics and technical requirement: 1, inner connection signal is many, usual motherboard needs load a large amount of connector body, makes motherboard plate face size larger; 2, on motherboard, connector body is normally directly connected with motherboard by pressure is slotting, requires very strict to socket aperture; 3, because aerospace electron unit functional module is many, after modules assembling, size cumulative tolerance is comparatively large, therefore requires very high to modular structure part machining tolerance; 4, aerospace electron unit needs by the strict environmental test such as vibration, impact, overload usually, very high to motherboard reliability requirement.
Therefore, usually due to motherboard aperture and the accumulation of functional module nominal clearances in practical operation, be difficult to ensure that motherboard connector and functional module internal connector dock smoothly, even in docking operation connector pinout bending phenomenon occurs by stress, carrying out vibration test in this case will make internal connector pin come off or rupture, and have a strong impact on quality of space product.
Summary of the invention
The object of the present invention is to provide a kind of printed circuit board based on modular construction and corresponding motherboard installation method, connector body through hole on printed circuit board and corresponding pad design are track type by it, offset the cumulative limit of motherboard aperture and functional module size by increasing its lateral length; Also proposed a kind of corresponding motherboard installation method simultaneously, ensure that the smooth docking of connector body and functional module internal connector, avoid damage.
In order to achieve the above object, the present invention is achieved through the following technical solutions:
Based on a printed circuit board for modular construction, for linkage function module and connector, realize the electrical connection of motherboard, it is characterized in that:
This printed circuit board has many group connector mounting hole groups, each installing hole group comprises some through holes respectively, and each through hole is all designed to the track type of left and right semicircle intermediate rectangular, and the pad on each through hole also correspondence is designed to track type.
The above-mentioned printed circuit board based on modular construction, wherein: the width of each described pad is at least greater than 10mil.
The above-mentioned printed circuit board based on modular construction, wherein: each described through hole comprises X-direction and Y-direction respectively, the orientation that X-direction is assembled as functional module, X-direction diameter is greater than Y-direction diameter.
The above-mentioned printed circuit board based on modular construction, wherein: described through hole Y-direction diameter 5 ~ 20mil larger than connector pinout diameter.
A kind of motherboard installation method, is characterized in that, comprise following steps:
S1, by connector body prepackage on a printed circuit board;
S2, the printed circuit board be pre-installed is positioned over the relevant position of functional module;
S3, the track type through hole used on printed circuit board, finely tune the position of connector, and connector body and functional module internal connector plug 1 are inserted for a pair;
S4, mounting fastener to be connected with motherboard;
S5, to weld corresponding with the pad on printed circuit board for connector pinout, complete motherboard electrical connection.
Above-mentioned motherboard installation method, wherein, described step S4 specifically comprises:
S51, mounting fastener to be positioned on motherboard mechanical erection hole, again connector position to be finely tuned, enable motherboard mounting fastener effectively fastening;
S52, complete motherboard mechanical erection.
The present invention compared with prior art has the following advantages:
1, the present invention abandons traditional manhole and circular pad structure, connector body is installed via design for going to shape, which increase the lateral length of through hole to offset the cumulative limit of motherboard aperture and functional module size, longitudinal length is constant, ensure that the fastness that connector welds;
2, motherboard installation method proposed by the invention, not only ensure that connector and the smooth of functional module also reduce electronics unit weight to inserting the stress damage avoiding connector, having good engineer applied and being worth.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of track type through hole in the present invention;
Fig. 2 is the partial structurtes schematic diagram of printed circuit board of the present invention;
Fig. 3 is the overall structure schematic diagram of the printed circuit board of prefabricated connector socket in the embodiment of the present invention;
Fig. 4 is functional module assembling schematic diagram in the embodiment of the present invention;
Fig. 5 is the electronics unit overall structure schematic diagram after completing motherboard mechanical erection in the embodiment of the present invention.
Embodiment
Below in conjunction with accompanying drawing, by describing a preferably specific embodiment in detail, the present invention is further elaborated.
A kind of printed circuit board based on modular construction, for linkage function module 3 and connector 2, realize the electrical connection of motherboard, as shown in Figure 1, 2, this printed circuit board 1 have many group connector mounting hole groups, each installing hole group comprises some through holes 11 respectively, and each through hole 11 is all designed to the track type of left and right semicircle intermediate rectangular, and the pad 12 on each through hole 11 also correspondence is designed to track type.
In order to ensure pad 12 reliably glutinous tin, the width of each described pad 12 is at least greater than 10mil.
Each described through hole 11 comprises X-direction and Y-direction respectively, the orientation that X-direction is assembled as functional module 3, and X-direction diameter is greater than Y-direction diameter, makes connector 2 installation site in the X direction to finely tune like this.
In order to ensure connector 2 pin and through hole tolerance fit good, described through hole 11Y orient diameter 5 ~ 20mil larger than leg diameter on connector 2, in order to ensure between connector body 2 pin can cabling, through hole 11 diameter in the X direction should be decided according to factors such as connector pin trestle column, printed circuit board diameter wire, printed circuit board spacing rules further; In the present embodiment, connector pinout diameter is 20mil, and therefore getting through hole 11Y orient diameter is 25mil, and X-direction diameter is 40mil, and pad 12 width is 12mil.
The present invention also provides a kind of motherboard installation method, and it comprises following steps:
S1, as shown in Figure 3, connector 2 to be contained in advance on printed circuit board 1, in the present embodiment, 6 connectors to be installed;
S2, as shown in Figure 4, the printed circuit board 1 be pre-installed is positioned over the relevant position of functional module 3, in the present embodiment, functional module 3 has 6, needs to carry out assembling in advance fastening between each functional module 2;
S3, the track type through hole 11 used on printed circuit board 1, finely tune the position of connector 2, and connector 2 socket and functional module 3 internal connector plug 1 are inserted for a pair;
S4, as shown in Figure 5, mounting fastener 4 to be connected with motherboard;
S5, to weld corresponding with the pad 12 on printed circuit board 1 for connector 2 pin, complete motherboard electrical connection.
In described motherboard installation method, described step S4 specifically comprises:
S51, mounting fastener 4 is positioned on motherboard mechanical erection hole, again connector body 2 position is finely tuned, make motherboard mounting fastener 4 can be effectively fastening;
S52, complete motherboard mechanical erection.
Experiment results proved, applies the present invention to, on lunar orbiter power-supply controller of electric product, show good mechanics and thermal adaptability, can meet the every environmental test requirement of space product.
Although content of the present invention has done detailed introduction by above preferred embodiment, will be appreciated that above-mentioned description should not be considered to limitation of the present invention.After those skilled in the art have read foregoing, for multiple amendment of the present invention and substitute will be all apparent.Therefore, protection scope of the present invention should be limited to the appended claims.
Claims (6)
1., based on a printed circuit board for modular construction, for linkage function module (3) and connector (2), realize the electrical connection of motherboard, it is characterized in that:
This printed circuit board (1) have many group connector mounting hole groups, each installing hole group comprises some through holes (11) respectively, and each through hole (11) is all designed to the track type of left and right semicircle intermediate rectangular, the pad (12) on each through hole (11) also correspondence is designed to track type.
2., as claimed in claim 1 based on the printed circuit board of modular construction, it is characterized in that: the width of each described pad (12) is at least greater than 10mil.
3., as claimed in claim 1 based on the printed circuit board of modular construction, it is characterized in that: each described through hole (11) comprises X-direction and Y-direction respectively, the orientation that X-direction is assembled as functional module (3), and X-direction diameter is greater than Y-direction diameter.
4., as claimed in claim 3 based on the printed circuit board of modular construction, it is characterized in that: described through hole (11) Y-direction diameter 5 ~ 20mil larger than connector (2) leg diameter.
5. a motherboard installation method, is characterized in that, comprises following steps:
S1, connector (2) socket is contained on printed circuit board (1) in advance;
S2, the printed circuit board be pre-installed (1) is positioned over the relevant position of functional module (3);
S3, the track type through hole (11) used on printed circuit board (1), finely tune the position of connector (2), and connector (2) socket and functional module (3) internal connector plug 1 are inserted for a pair;
S4, mounting fastener (4) to be connected with motherboard;
S5, to weld corresponding with the pad (12) on printed circuit board (1) for connector (2) pin, complete motherboard electrical connection.
6. motherboard installation method as claimed in claim 5, it is characterized in that, wherein, described step S4 specifically comprises:
S51, mounting fastener (4) is positioned on motherboard mechanical erection hole, again connector (2) socket position is finely tuned, make motherboard mounting fastener (4) can be effectively fastening;
S52, complete motherboard mechanical erection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510820661.3A CN105357870B (en) | 2015-11-24 | 2015-11-24 | A kind of printed circuit board based on modular construction and corresponding motherboard installation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510820661.3A CN105357870B (en) | 2015-11-24 | 2015-11-24 | A kind of printed circuit board based on modular construction and corresponding motherboard installation method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105357870A true CN105357870A (en) | 2016-02-24 |
| CN105357870B CN105357870B (en) | 2018-01-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510820661.3A Active CN105357870B (en) | 2015-11-24 | 2015-11-24 | A kind of printed circuit board based on modular construction and corresponding motherboard installation method |
Country Status (1)
| Country | Link |
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| CN (1) | CN105357870B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109819589A (en) * | 2017-11-21 | 2019-05-28 | 和硕联合科技股份有限公司 | Circuit board module and electronic device |
| CN110002012A (en) * | 2019-04-30 | 2019-07-12 | 西安微电子技术研究所 | A kind of synchronization docking facilities between aircraft bay section |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030006061A1 (en) * | 2001-06-20 | 2003-01-09 | International Business Machines Corporation | Hybrid surface mount and pin thru hole circuit board |
| CN104661511A (en) * | 2015-02-03 | 2015-05-27 | 深圳市北美通科技有限公司 | Automatic plug-in method |
| CN104701703A (en) * | 2013-12-09 | 2015-06-10 | 上海空间电源研究所 | Integrated, high-density and flexible interconnection method for power controller internal connection |
-
2015
- 2015-11-24 CN CN201510820661.3A patent/CN105357870B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030006061A1 (en) * | 2001-06-20 | 2003-01-09 | International Business Machines Corporation | Hybrid surface mount and pin thru hole circuit board |
| CN104701703A (en) * | 2013-12-09 | 2015-06-10 | 上海空间电源研究所 | Integrated, high-density and flexible interconnection method for power controller internal connection |
| CN104661511A (en) * | 2015-02-03 | 2015-05-27 | 深圳市北美通科技有限公司 | Automatic plug-in method |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109819589A (en) * | 2017-11-21 | 2019-05-28 | 和硕联合科技股份有限公司 | Circuit board module and electronic device |
| CN109819589B (en) * | 2017-11-21 | 2020-11-17 | 和硕联合科技股份有限公司 | Circuit board module and electronic device |
| CN110002012A (en) * | 2019-04-30 | 2019-07-12 | 西安微电子技术研究所 | A kind of synchronization docking facilities between aircraft bay section |
| CN110002012B (en) * | 2019-04-30 | 2022-12-06 | 西安微电子技术研究所 | Synchronous butt joint device between aircraft cabin sections |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105357870B (en) | 2018-01-19 |
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