CN1302178A - Method of mounting electric connector of printed circuit board - Google Patents
Method of mounting electric connector of printed circuit board Download PDFInfo
- Publication number
- CN1302178A CN1302178A CN 99128103 CN99128103A CN1302178A CN 1302178 A CN1302178 A CN 1302178A CN 99128103 CN99128103 CN 99128103 CN 99128103 A CN99128103 A CN 99128103A CN 1302178 A CN1302178 A CN 1302178A
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- circuit board
- printed circuit
- pcb
- clamper
- electric connector
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Abstract
The process of installing an electric connector to printed circuit board includes the steps of: molding a folding trace line on the printed circuit board to divide it into the first board and the second board; fixing a U-clamp onto the second board and fixing the electric connector onto printed circuit board; performing the first SMT technological course; performing the second SMT technological course; and eliminating the second board and the U-clamp. The other process includes the steps of: using a U-clamp of fix the electric connector to printed circuit board; performing the first SMT technological course; performing the second SMT technologial course after the printed circuit board is turned over; and eliminating the U-clamp. During the said processes, the electric connector will not be damaged and departed.
Description
The present invention relates to a kind of method of electric connector of fitting printed circuit board, described electric connector can not have damage and is fixedly installed on the printed circuit board (PCB) with coming off.
For existing notebook computer, the electronics plug-in electric connector that is installed in computer inside is used to receive similar storage arrangements such as IC-card, finishes multiple peripheral function.But, make the notebook computer requirement of miniaturization and multifunction more, electronics plug-in electric connector need be arranged on the edge of main printed circuit board or computer motherboard, to make full use of the effective coverage on the mainboard in order to satisfy.Exist at present two kinds to make and the method for assembling electronics plug-in electric connector to the edge of mainboard, as illustrated in fig. 1 and 2, first method comprises the following steps: that mold pressing mainboard 1 forms a crease line 10, the edge of it and mainboard 1 has certain distance, and described crease line is divided into first 11 and second portion 12 with mainboard; Electric connector folder 2 is installed between described first and the second portion, and connector terminals contacts with the weld zone of first; Adopt positive SMT (surface mounting technology) method connector terminals to be connected on the weld zone of first; With the mainboard upset, carry out back side SMT method; At last, remove second portion.Described second method is very simple, earlier electric connector 2 is installed on the mainboard, adopts positive SMT (surface mounting technology) method and back side SMT method to handle then.
In above-mentioned method, when carrying out back side SMT technology behind the upset mainboard, the welding compound that is attached on the connector terminals 20 may also not solidify, electric connector is thrown off from mainboard, as shown in Figure 3, as a result, connector terminals may be damaged or come off from mainboard, causes producing the short circuit and the open circuit of false connection, electric connector inside.Therefore, if do not solve this problem when carrying out back side SMT technology, the damage or the incorrect link of electric connector just might take place.
The objective of the invention is to overcome the problems referred to above that occur when electric connector to printed circuit board (PCB) is installed.
A technical scheme of the present invention provides a kind of method of installing on electric connector to a printed circuit board (PCB), wherein disposes the clamper of a U-shaped, can before carrying out above-mentioned SMT technology electric connector be positioned on the described mainboard.So electric connector problem not in place can not occur or come off from mainboard during carrying out above-mentioned SMT technology.
According to another technical scheme of the present invention, the structure of clamper is to change according to the type and the processing method of mainboard.If mainboard is divided into first 11 and second portion by an aforesaid crease line, then clamper is arranged on the second portion mainboard, and is removed with second portion.If mainboard is single plate, do not have to use the second portion that easily unloads, the clamper that then is arranged on the mainboard comprises that one has the welding leg that easily unloads part, makes clamper be easy to be removed after executing SMT technology.
By the detailed description below in conjunction with accompanying drawing, other purposes of the present invention, advantage and characteristic be easy to understand more.
Technical characterictic with novelty of the present invention is embodied in the claims by the appended claims herein.The present invention and purpose thereof and advantage will be below be better understood in the further describing in conjunction with the accompanying drawings, and device identical in the accompanying drawing adopts unified label.
Fig. 1 is that expression adopts conventional installation method that the schematic diagram of electric connector to the mainboard is installed;
Fig. 2 is that expression adopts conventional installation method to carry out the sectional view of the positive SMT technology of electric connector;
Fig. 3 is that expression adopts conventional installation method to carry out the sectional view of the back side SMT technology of electric connector, and wherein electric connector has broken away from mainboard in the part;
Fig. 4 is the flow chart of installing according to a preferred embodiment of the present invention;
Fig. 5 is the schematic diagram that clamper of the present invention is not installed to the state on the mainboard as yet;
Fig. 6 is the schematic diagram that clamper of the present invention has been installed to the state on the mainboard;
Fig. 7 adopts installation method of the present invention to utilize clamper to realize the sectional view of the positive SMT technology of electric connector;
Fig. 8 adopts installation method of the present invention to utilize clamper to realize the sectional view of the back side SMT technology of electric connector;
Fig. 9 is the flow chart that second preferred embodiment according to the present invention installed; And
Figure 10 is the schematic diagram that the clamper of second preferred embodiment of the present invention is not installed to the state on the mainboard as yet.
Fig. 4 is the flow chart according to first preferred embodiment of the present invention, and Fig. 5-8 all is views of describing this embodiment.First embodiment of the present invention adopts a printed circuit board (PCB) as motherboard 3, and it comprises that first plate 31 and 32, one electric connectors 4 of second plate are installed on the motherboard.Installation method according to this embodiment comprises the following steps:
A) crease line of mold pressing is to motherboard 3, and in this step, crease line 30 is formed on the edge certain distance part of leaving motherboard, makes motherboard be divided into first plate 31 and second plate 32 by crease line 30;
B) utilize a clamper that electric connector is navigated on the motherboard, in this step, the clamper 5 usefulness metals of U-shaped are made, and be installed to as shown in Figure 5 on the electric connector 4, clamper 5 comprises horizontal component and two vertical components along the electric connector horizontal expansion, and each has a welding leg 50 that is used to weld second plate 32.Therefore, electric connector 4 is between first plate 31 and second plate 32, and the terminal 40 of electric connector 4 contacts with the weld zone of first plate 31 as illustrated in Figures 5 and 6;
C) positive SMT technology.As shown in Figure 7, motherboard 3 is carried out a SMT process up, and for example reflow soldering or IR are connected to the splicing ear 40 of electric connector 4 on the respective lands of motherboard;
D) back side SMT technology.As shown in Figure 8, motherboard 3 upsets are carried out a back side SMT process down;
E) remove second plate 32 and clamper 5,, when unloading second plate 32, take clamper 5 along crease line 30 folding second plates 32.
In addition, as shown in Figures 9 and 10, the method for second embodiment of the invention is that motherboard 3 does not have second plate, comprises the following steps: according to the method for second embodiment of the invention
A) utilize a clamper that electric connector is navigated on the motherboard, in this step, the clamper 5 of U-shaped is made with metal as shown in figure 10, clamper 5 comprises horizontal component and two vertical components along electric connector 4 horizontal expansions, and each has a welding leg 50 that has flexible tail end 500 that is welded on the mainboard.Therefore, electric connector 4 is fixed on the motherboard 3, and the terminal 40 of electric connector 4 contacts with the welding leg of motherboard 3;
B) positive SMT technology.Motherboard 3 is carried out a SMT process up, and for example reflow soldering or IR welding is connected to the splicing ear 40 of electric connector 4 on the respective lands of motherboard;
C) back side SMT technology.Motherboard 3 upsets are carried out a back side SMT process down;
D) remove clamper 5, unload lower gripper 5, thereby clamper 5 is unloaded from motherboard from flexible tail end 500.
By foregoing description as can be seen, because electric connector 4 is held device 5 location, in carrying out the process of respective lands that the terminal 40 of SMT with electric connector 4 be welded to motherboard, electric connector 4 can not move, and can not come off from motherboard yet.Particularly, in the back side SMT technology of the electric connector installation method of prior art, electric connector 4 is not held the location by servicing unit, so electric connector 4 may come off from its tram dislocation or from motherboard owing to himself overcome the conduct of the weight of gravity.In the SMT technical process of implementing described front, if tin cream that uses or soldering paste do not harden or do not have suitable solidifying, then problem can take place.But under situation of the present invention, electric connector 4 is held device 5 clampings location, even during implementing back side SMT technical process, employed tin cream or soldering paste do not harden or do not have suitable solidifying in the SMT in front technical process, electric connector 4 can not be shifted or come off yet.Therefore, the present invention has improved work quality and the operating efficiency that is installed in the electric connector on this motherboard.In addition, clamper 5 can be unloaded down from electric connector at an easy rate, provides a plurality of breakpoints that easily unload on the welding leg, and clamper 5 is unloaded with second flat board 32 simultaneously.
Although the present invention has been described in conjunction with the embodiment that recommends in the front; obviously; the present invention never is confined to the form of described embodiment; on the basis of the embodiment that those of ordinary skill in the field introduce in front; can make many derivations and improvement project; therefore, all these derivations and improvement project should be considered as not breaking away from the protection range of appending claims of the present invention.
Claims (8)
1, a kind of method of electric connector to the printed circuit board (PCB) of installing comprises the following steps:
A) crease line of mold pressing is to printed circuit board (PCB), and in this step, crease line is formed on the edge preset distance part of leaving printed circuit board (PCB), makes printed circuit board (PCB) be divided into first plate and second plate by crease line;
B) provide a clamper, utilize this clamper that electric connector is fixed with respect to printed circuit board (PCB), wherein said clamper is fixed on described second plate, and keep described connector terminals between described first plate and second plate, described connector terminals is contacted with the respective lands of first plate;
C) carry out a SMT technical process, wherein said printed circuit board surface is welded to the splicing ear of described electric connector on the weld zone of corresponding first plate up;
D) carry out the 2nd SMT technical process, wherein said printed circuit board (PCB) upset is carried out a SMT technical process down on the back side of printed circuit board (PCB);
E) remove second plate and clamper simultaneously, wherein unload second plate by bending from first plate, and when unloading second plate, take clamper along described crease line.
2, installation method according to claim 1, wherein said clamper rely on a spot of tin cream to be fixed on described second flat board, and after described the 2nd SMT technical process is finished, described clamper are unloaded from second flat board.
3, a kind of erection unit of electric connector to the printed circuit board (PCB) of installing, described printed circuit board (PCB) comprises one first dull and stereotyped and one second flat board that separates by a crease line; Described equipment comprises: a clamper is fixedly mounted on described second flat board, it is in the process that electric connector is welded on the printed circuit board (PCB), keep described electric connector to place with respect to described printed circuit board (PCB), wherein said clamper unloads from described second flat board after being welded to electric connector on the printed circuit board (PCB) simultaneously.
4, erection unit according to claim 3, wherein said clamper 5 is U-shaped sheet metals, comprise horizontal component and two the vertical parts that respectively have a weldering leg that extend across described electric connector, be used to be welded to described second flat board.
5, a kind of method of electric connector to the printed circuit board (PCB) of installing comprises the following steps:
A) provide a clamper that is fixed on the circuit board, utilize this clamper that electric connector is fixed with respect to printed circuit board (PCB), and keep described connector terminals and contact with the corresponding welding leg of described printed circuit board (PCB);
B) carry out a SMT technical process, wherein said printed circuit board surface is welded to the splicing ear of described electric connector on the corresponding weld zone up;
C) carry out the 2nd SMT technical process, wherein said printed circuit board (PCB) upset is carried out a SMT technical process down on the back side of printed circuit board (PCB);
D) remove described clamper from described printed circuit board (PCB).
6, installation method according to claim 1, wherein said clamper comprises a weldering leg, and the described weldering bottom bands of trouser legs has one easily to unload part, and described clamper is soldered on the printed circuit board (PCB), and after the 2nd SMT technical process is finished, can unload from printed circuit board (PCB).
7, a kind of erection unit of electric connector to the printed circuit board (PCB) of installing, described equipment comprises a clamper with respect to described printed circuit board (PCB) fixed placement, wherein said electric connector is maintained on the printed circuit board (PCB), and their terminal is connected on the printed circuit board (PCB) by the corresponding welded gasket on the printed circuit board (PCB).
8, according to the erection unit of claim 7, wherein said clamper is a U-shaped, be made of metal, and comprise a horizontal component that extends across described electric connector and two vertical parts that respectively have a weldering leg, be used to be welded to the flexible part of described printed circuit board (PCB), clamper can after being welded on the described welded gasket, its terminal be unloaded from described printed circuit board (PCB).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB991281039A CN1192693C (en) | 1999-12-29 | 1999-12-29 | Method of mounting electric connector of printed circuit board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB991281039A CN1192693C (en) | 1999-12-29 | 1999-12-29 | Method of mounting electric connector of printed circuit board |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1302178A true CN1302178A (en) | 2001-07-04 |
| CN1192693C CN1192693C (en) | 2005-03-09 |
Family
ID=5284993
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB991281039A Expired - Fee Related CN1192693C (en) | 1999-12-29 | 1999-12-29 | Method of mounting electric connector of printed circuit board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1192693C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100508697C (en) * | 2007-08-21 | 2009-07-01 | 无锡荣志电子有限公司 | Technique for placing connectors on printing circuit board |
| CN114760774A (en) * | 2022-03-14 | 2022-07-15 | 深圳市兆兴博拓科技股份有限公司 | Circuit board surface mounting process based on surface optimization and circuit board |
-
1999
- 1999-12-29 CN CNB991281039A patent/CN1192693C/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100508697C (en) * | 2007-08-21 | 2009-07-01 | 无锡荣志电子有限公司 | Technique for placing connectors on printing circuit board |
| CN114760774A (en) * | 2022-03-14 | 2022-07-15 | 深圳市兆兴博拓科技股份有限公司 | Circuit board surface mounting process based on surface optimization and circuit board |
| CN114760774B (en) * | 2022-03-14 | 2024-05-10 | 深圳市兆兴博拓科技股份有限公司 | Circuit board surface mounting technology based on surface optimization and circuit board |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1192693C (en) | 2005-03-09 |
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