CN102412453A - Electric connector and manufacturing method thereof - Google Patents
Electric connector and manufacturing method thereof Download PDFInfo
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- CN102412453A CN102412453A CN2011104519521A CN201110451952A CN102412453A CN 102412453 A CN102412453 A CN 102412453A CN 2011104519521 A CN2011104519521 A CN 2011104519521A CN 201110451952 A CN201110451952 A CN 201110451952A CN 102412453 A CN102412453 A CN 102412453A
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Abstract
The invention discloses an electric connector and a manufacturing method thereof. The method is characterized by comprising the following steps: arranging a baffle frame at the outer periphery of each terminal on an electric conduction plate after the terminals are fixed on the whole electric conduction plate; pouring liquids or pasty insulation materials in a space defined by the electric conduction plate and the baffle frame; and finally removing the redundant part on the electric conduction plate, so that the electric conduction plate forms a plurality of isolated electric conduction blocks which are in one-to-one correspondence with the terminals. Through the manufacturing method, not only can the insertion force problem brought by the assembling method be avoided, but also the problem of bending difficulty of a material strip brought by the mode of insert-molding can be solved; the intensity required by the electric connector can be ensured by the electric conduction plate selected in the manufacturing method, at the same time, the thickness can be reduced, thus the thickness of the manufactured electric connector is smaller, which accords with the development trend of an ultrathin electric connector, and the mode that all the terminals are fixed into a mutually-conducted integrity and the integrity is then separated into isolated individuals ensures that short circuit hazard can not happen among the terminals.
Description
Technical field
The present invention relates to a kind of electric connector and preparation method thereof, refer to a kind of highdensity electric connector and preparation method thereof especially.
Background technology
At present; For in order to electrically connect the electric connector of chip module to an external circuits plate; Industry adopts the mode of assembling to make usually; Promptly use LCP (Liquid Crystal Polyester) material ejection formation to have an insulating body of a plurality of accepting holes earlier, utilize strip terminal to be inserted in bulk in the accepting hole of insulating body again, strip at last fractures.This mode is owing to exist frictional resistance between accepting hole wall and terminal; Thereby terminal inserts comparatively difficulty; And for high-density connector; Because it is intensive that the accepting hole quantity that molds on the insulating body is big, accepting hole is arranged, and is prone to cause the insulating body insufficient strength, the insertion end period of the day from 11 p.m. to 1 a.m even can cause the problem that insulating body breaks.
Another kind of manufacture method then adopts insert-molding technology: earlier terminal is connected strip and be fixed in the injection mold; (fusion under high temperature of this plastic cement is in a liquid state toward the liquid plastic cement of the interior injection of injection mold again; Solidify to form insulating body after cooling), the mode of the strip that fractures at last forms electric connector.Though the mode of this insert-molding can solve the insertion force problem that exists in the assembling mode, work as number of terminals more for a long time, terminal is arranged very intensive, causes the adjacent spacing of its strip less, the difficult realization of the technology of the feasible strip that finally fractures.
The inventor designed a kind of manufacture method of electric connector can take into account the problem that solves insertion force and the difficult folding of strip; Like application number is described in the CN200710199120.9 Chinese patent; This method may further comprise the steps: provide one be provided with a plurality of contact mats circuit board; The upper and lower surfaces of this circuit board is equipped with contact mat, and the contact mat of upper and lower surfaces is through the through hole conducting on the circuit board; A plurality of linearity terminals are provided; One end of son is welded on the contact mat of circuit board upper surface; In periphery, circuit board upper terminal region one square framework is set; In square framework, inject elastic gel.The electric connector that this method is produced is soldered to another external circuits plate through the contact mat of circuit board lower surface, to realize the electric connection of electric connector and external circuits plate.Because circuit board comprises resin substrate and the contact mat that is positioned at upper and lower surfaces, thereby its thickness is bigger, can't satisfy the development trend of ultra-thinization of electric connector; And because that terminal is arranged is intensive, in welding process, scolder be prone to toward around spread to coating the terminals of adjacent welding ends; The electric connector that causes making is easy to generate short-circuit risks; Likewise, on the circuit board through hole arrange also corresponding intensive, cause circuit board intensity a little less than.
Therefore, the inventor is devoted to design a kind of new electric connector and preparation method thereof to address the above problem.
Summary of the invention
The object of the present invention is to provide a kind of electric connector and manufacturing approach thereof, the electric connector that utilizes this method to produce can realize that the highdensity while is with less thickness and enough intensity.
For realizing above-mentioned purpose, the present invention provides a kind of electric connector, in order to electrically connect an external circuits plate, comprising: an insulating body; A plurality of terminals are partially submerged into said insulating body at least, and each said terminal has a stiff end; A plurality of conducting blocks, each said conducting block have one first connecting face and one second and connect face of being oppositely arranged, and said first face that connects is fixedly connected with said stiff end to form electrical path, and said second connects face in order to be electrically connected at said external circuits plate.
The bottom surface of said stiff end is concordant with the bottom surface of said insulating body, and said stiff end is fixedly welded on said first and connects face.
Further, a plurality of said conducting blocks are that a conductive plate forms through separating.
Preferably, said conductive plate is a metallic plate, and said metallic plate forms a plurality of said conducting block that is separated from each other through etching.
Wherein, a plurality of said terminals comprise that at least two ground connection row and at least two mixes row, and said two mix ranking between said two ground connection row; And adjacent per two row's terminals are and shift to install; Wherein, said ground connection row is an earth terminal entirely, and said two mix package draws together at least two difference signal terminal; Said two difference signal terminal are positioned at different rows and are positioned at adjacent columns, and each said mixing row is provided with adjacent two row that at least two earth terminals are positioned at each difference signal terminal.
As the further improvement of such scheme, the material cured of paste forms said insulating body by being in a liquid state perhaps under the normal temperature, and said material can be the thermosetting resin of AB glue or photosensitive resin or thick liquid nano.
The present invention also provides a kind of manufacture method of electric connector, may further comprise the steps:
A., one conductive plate is provided, has a conduction region on the said conductive plate, have a plurality of said first in the said conduction region and connect face, the said stiff end correspondence of each said terminal is fixedly connected on each said first connects face;
B., one retaining frame is set on said conductive plate, and it is peripheral that said retaining frame level is located in said conduction region, and said retaining frame and said conductive plate surround have above the space of opening;
C. in said space, pour liquid or paste insulating material from said opening into, said insulating material coats the stiff end of each said terminal;
D. said insulating material is cured processing to form an insulating body, the stiff end of each said terminal is fixed in said insulating body;
E. remove and be positioned at each said first part of connecting beyond the face on the said conductive plate, keep said first and connect face, make said conductive plate form a plurality of isolated said conducting blocks and the corresponding connection of a plurality of said stiff ends.
Further, said conductive plate is a metallic plate.
Wherein, among the step a, the said stiff end of said terminal is fixedly welded on said first and connects face.
As embodiment preferred, said fixed part is to connect face with laser welding in said first.
In other embodiments, said stiff end also can be to be welded in said first with scolder to connect face.
Among the step c, pour into liquid or the paste insulating material after, also comprise the insulating material surface is flattened processing.
As optional embodiment, in the steps d,, treat that its curing molding is said insulating body with pouring in the said space after A glue and the B glue mixing and stirring.
As the optional embodiment of another kind, in the steps d, in said space, pour liquid photosensitive resin into, and carry out that curing molding is said insulating body after the photo-irradiation treatment.
As the optional embodiment of another kind, in the steps d, in said space, pour the thermosetting resin of thick liquid nano into, and carry out that curing molding is said insulating body after the heat treated.
As optional embodiment, among the step e, carry out etch processes to form a plurality of isolated said conducting blocks to being positioned at said first part that connect beyond the face on the said conductive plate.
As the optional embodiment of another kind, among the step e, be positioned at said first on the said conductive plate of use laser ablation and connect face part in addition to form a plurality of isolated said conducting blocks.
Compared with prior art; The present invention is through after being fixed in said terminal on the said conductive plate of one monoblock; It is peripheral in said terminal that said retaining frame is set on said conductive plate; And in the said space that said conductive plate and said retaining frame surround, pour liquid or paste insulating material into; Remove redundance on the said conductive plate at last so that said conductive plate to form a plurality of isolated said conducting blocks corresponding one by one with said terminal, the insertion force problem that this manufacture method both can avoid assembling mode to bring can solve the problem of the difficult folding of strip that the insert-molding mode brings again; The said conductive plate that this manufacture method is selected for use can reduce thickness when can guarantee the electric connector desirable strength; Thereby its thickness of produced electric connector is less, meets the development trend of ultra-thinization of electric connector, and this mode that all terminals are fixed as an integral body of mutual conduction and then separate into isolated individuality can be guaranteed can not produce short-circuit risks between terminal.
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[description of drawings]
Fig. 1 is the flow chart of electric connector manufacture method of the present invention;
Fig. 2 is the vertical view of conductive plate;
Fig. 3 is the sketch map of electric connector manufacture method of the present invention behind step a;
Fig. 4 is the sketch map of electric connector manufacture method of the present invention behind step b;
Fig. 5 is the sketch map of electric connector manufacture method of the present invention behind step c;
Fig. 6 is the sketch map of electric connector manufacture method of the present invention after steps d;
Fig. 7 is the sketch map of electric connector manufacture method of the present invention behind step e;
Fig. 8 electrically connects the sketch map of chip module and circuit board for electric connector of the present invention.
The drawing reference numeral explanation of embodiment:
| |
1 | |
10 | First connects |
11 |
| Second connects |
12 | Conducting |
13 | |
2 |
| |
20 | |
21 | The retaining |
3 |
| |
4 | The |
5 | Insulating material | 6 |
| |
60 | Chip module | 7 | The |
8 |
| Ground connection row | L 1 | Mix row | L 2 | ? | ? |
[embodiment]
For ease of better understanding the object of the invention, structure, characteristic and effect etc., combine accompanying drawing and embodiment that the present invention is described further at present.
With reference to the flow process among Fig. 1, the present invention provides a kind of manufacture method of electric connector, may further comprise the steps:
At first, a conductive plate 1 and a plurality of terminal 2 are provided.Said conductive plate 1 used in the present invention can be selected resistant to elevated temperatures metal (for example copper, iron etc.) or nonmetal materials such as (for example graphite, silicon etc.) for use; The fusing point of this material is higher than the fusing point of scolder (normally used tin ball) far away; In the present embodiment; Consider factors such as price and electric property and mechanical performance, preferred brass material is as said conductive plate 1.Shown in Fig. 2 and Fig. 3, delimit a conduction region 10 on the said conductive plate 1, have a plurality of first in the said conduction region 10 and connect face 11 and be honeycomb arrangement; Said terminal 2 is type linearly, and it has a stiff end 20 and an elastic arm 21, said stiff end 20 and said elastic arm 21 in a certain angle being obliquely installed.
Secondly, as shown in Figures 2 and 3, a plurality of said terminal 2 correspondences are welded on the said conductive plate 1.As preferred mode, can use method of laser welding that said stiff end 20 correspondences of each said terminal 2 are soldered to each and said first connect face 11.In this step, be the strip that conveniently fractures (not shown), can in order a plurality of said terminals 2 be welded on the said conductive plate 1 by rows that every welding is intact to fracture strip once the said terminal of row 2.In other embodiments, also can use scolder that said stiff end 20 is welded in said first and connect face 11.
Then, shown in Fig. 2 and Fig. 4, the periphery that a retaining frame 3 is located in said terminal 2 is set on said conductive plate 1.Said retaining frame 3 levels are located in said conduction region 10 peripheries, and said retaining frame 3 fits tightly edge around said conductive plate 1, surround the space 5 with top opening 4 with this.
And then, with reference to Fig. 5 and Fig. 6, in said space 5, pour liquid or paste insulating material 6 from said opening 4 into, and said insulating material 6 is cured processing.Said insulating material 6 is in a liquid state or paste at normal temperatures, and in the present embodiment, said insulating material 6 is an AB glue, and the operator pours in the said space 5 after can using A glue and B glue mixing and stirring, makes liquid AB glue coat said stiff end 20; After waiting for certain hour, liquid said insulating material 6 curing moldings are an insulating body 60, can the said stiff end 20 of each said terminal 2 be fixed in the said insulating body 60, as shown in Figure 6.Be said insulating body 60 its surface smoothnesss that guarantee to form out; After pouring liquid said insulating material 6 into; Can use said insulating material 6 surfaces of ultrasonic wave liquid towards to flatten processing; After treating that perhaps it is cured to a certain degree, use mould that said insulating material 6 surfaces of liquid state are flattened and handle.
Certainly, in other embodiments, also can use liquid photosensitive resin material, pour liquid photosensitive resin in the said space 5 after, it is carried out photo-irradiation treatment makes it to solidify to form said insulating body 60.Perhaps also can use the thermosetting resin of thick liquid nano, and carry out heat treated and make it to solidify to form said insulating body 60, the invention is not restricted to this.
At last, as shown in Figure 7, remove and be positioned at each said first part of connecting beyond the face 11 on the said conductive plate 1, keep said first and connect face 11.In the present embodiment, preferably adopt engraving method to remove to be positioned on the said conductive plate 1 said first part that connect beyond the face 11, to form a plurality of isolated conducting blocks 13.In other embodiments, also can use the laser ablation redundance, perhaps use icking tool to strike off redundance, concrete grammar is decided according to the material of said conductive plate 1, the invention is not restricted to this.
Please with reference to Fig. 8, the electric connector that uses said method to produce, in order to electrically connect a chip module 7 to one external circuits plates 8, said retaining frame 3 can be used for carrying said chip module 7.In this electric connector; Said terminal 2 is partially submerged into said insulating body 60 at least; Said stiff end 20 all is coated and fixed by said insulating body 60; Said elastic arm 21 is coated by said insulating body 60 parts, and the bottom surface of the said stiff end 20 of said terminal 2 is concordant with the bottom surface of said insulating body 60; Each said terminal 2 below is fixedly connected with a said conducting block 13; Each said conducting block 13 has one second and connects face 12 and said first to connect face 11 relative; Said first connects face 11 fixes with said stiff end 20 welding, and said second connects face 12 is implanted with scolder such as tin ball (not shown), in order to be soldered to said external circuits plate 8; In this way, electrically conduct said chip module 7 and said external circuits plate 8 of said electric connector.
Be high frequency performance and the high density demand that satisfies electric connector, the arrangement mode of a plurality of said terminals 2 as shown in Figure 2, it roughly is honeycomb arrangement, comprises at least two ground connection rows L
1And at least two mix row L
2, said two mix row L
2Be positioned at said two ground connection row L
1Between, and adjacent per two row's terminals 2 are and shift to install, wherein, and said ground connection row L
1Complete is earth terminal G, and said two mix row L
2Comprise at least two difference signal terminal S+, S-, said two difference signal terminal S+, S-are positioned at different rows and are positioned at adjacent columns, each said mixing row L
2Be provided with adjacent two row that at least two said earth terminal G are positioned at each said difference signal terminal S+ or S-.In this way, each is centered on by eight said earth terminal G said difference signal terminal S+, S-, and this kind arrangement mode can effectively improve cross-talk and the loss of electric connector in transmitting the electric signal process, realizes good shield effectiveness.
The present invention has following beneficial effect:
Since manufacture method of the present invention through after on the said conductive plate 1 that said terminal 2 is fixed in a monoblock; Said retaining frame 3 is set in said terminal 2 peripheries on said conductive plate 1; And surround at said conductive plate 1 and said retaining frame 3 and to pour liquid or the said insulating material 6 of paste in the described space 5 into; At last said conductive plate 1 is carried out etching so that a plurality of isolated said conducting blocks 13 of said conductive plate 1 formation are corresponding one by one with said terminal 2; The insertion force problem that this manufacture method both can avoid assembling mode to bring can solve the difficult problem of rolling over of strip that the insert-molding mode is brought again.
2. because said terminal 2 is welded in said conductive plate 1; Compare with circuit board of the prior art; Said conductive plate 1 can reduce thickness when can guarantee the electric connector desirable strength, thereby its thickness of produced electric connector is less, meets the development trend of ultra-thinization of electric connector.
3. because said terminal 2 is to be fixed in said conductive plate 1 with the laser welding mode; Thereby have can be in prior art between the adjacent said terminal 2 in the welding process that scolder spreads maybe, can realize 2 high-density arrangements of terminal described in the electric connector and guarantee 2 no short-circuit risks of said terminal.
4. owing to the present invention adopts all said terminals 2 are fixed as an integral body of mutual conduction and then separate into isolated individuality; The mode of afterwards separating is fixed by this elder generation; Even be soldered to short circuit in the process of said conductive plate 1 at said terminal 2; Can each said terminal 2 separated from one another coming can be guaranteed that 2 of said terminals can not produce short-circuit risks through after the finally separated step.
More than specify the explanation of the preferred embodiment be merely the present invention, non-so limit to claim of the present invention, so the equivalence techniques variation that all this creation of utilization specifications and diagramatic content are done all is contained in the claim of the present invention.
Claims (22)
1. an electric connector in order to electrically connect an external circuits plate, is characterized in that, comprising:
One insulating body;
A plurality of terminals are partially submerged into said insulating body at least, and each said terminal has a stiff end;
A plurality of conducting blocks, each said conducting block have one first connecting face and one second and connect face of being oppositely arranged, and said first face that connects is fixedly connected with said stiff end to form electrical path, and said second connects face in order to be electrically connected at said external circuits plate.
2. electric connector as claimed in claim 1 is characterized in that: the bottom surface of said stiff end is concordant with the bottom surface of said insulating body.
3. electric connector as claimed in claim 1 is characterized in that: said stiff end is fixedly welded on said first and connects face.
4. electric connector as claimed in claim 1 is characterized in that: a plurality of said conducting blocks are that a conductive plate forms through separating.
5. electric connector as claimed in claim 4 is characterized in that: said conductive plate is a metallic plate.
6. electric connector as claimed in claim 5 is characterized in that: said metallic plate forms a plurality of said conducting blocks through etch separates.
7. electric connector as claimed in claim 1; It is characterized in that: a plurality of said terminals comprise that at least two ground connection row and at least two mixes row; Said two mix rankings between said two ground connection row, and adjacent per two row's terminals are and shift to install, wherein; Said ground connection row is an earth terminal entirely; Said two mix package draws together at least two difference signal terminal, and said two difference signal terminal are positioned at different rows and are positioned at adjacent columns, and each said mixing row is provided with adjacent two row that at least two earth terminals are positioned at each difference signal terminal.
8. electric connector as claimed in claim 1 is characterized in that: the material cured of paste forms said insulating body by being in a liquid state perhaps under the normal temperature.
9. electric connector as claimed in claim 8 is characterized in that: said material is an AB glue.
10. electric connector as claimed in claim 8 is characterized in that: said material is a photosensitive resin.
11. electric connector as claimed in claim 8 is characterized in that: said material is the thermosetting resin of thick liquid nano.
12. the manufacture method of electric connector as claimed in claim 1 is characterized in that, may further comprise the steps:
A., one conductive plate is provided, has a conduction region on the said conductive plate, have a plurality of said first in the said conduction region and connect face, the said stiff end correspondence of each said terminal is fixedly connected on each said first connects face;
B., one retaining frame is set on said conductive plate, and it is peripheral that said retaining frame level is located in said conduction region, and said retaining frame and said conductive plate surround have above the space of opening;
C. in said space, pour liquid or paste insulating material from said opening into, said insulating material coats the stiff end of each said terminal;
D. said insulating material is cured processing to form an insulating body, the stiff end of each said terminal is fixed in said insulating body;
E. remove and be positioned at each said first part of connecting beyond the face on the said conductive plate, keep said first and connect face, make said conductive plate form a plurality of isolated said conducting blocks and the corresponding connection of a plurality of said stiff ends.
13. the manufacture method of electric connector as claimed in claim 12 is characterized in that: said conductive plate is a metallic plate.
14. the manufacture method of electric connector as claimed in claim 12 is characterized in that: among the step a, the said stiff end of said terminal is fixedly welded on said first and connects face.
15. the manufacture method of electric connector as claimed in claim 14 is characterized in that: said fixed part is to connect face with laser welding in said first.
16. the manufacture method of electric connector as claimed in claim 14 is characterized in that: said stiff end is to be welded in said first with scolder to connect face.
17. the manufacture method of electric connector as claimed in claim 12 is characterized in that: among the step c, pour into liquid or the paste insulating material after, also comprise said insulating material surface is flattened processing.
18. the manufacture method of electric connector as claimed in claim 12 is characterized in that: in the steps d,, treat that its curing molding is said insulating body with pouring in the said space after A glue and the B glue mixing and stirring.
19. the manufacture method of electric connector as claimed in claim 12 is characterized in that: in the steps d, in said space, pour liquid photosensitive resin into, and carry out that curing molding is said insulating body after the photo-irradiation treatment.
20. the manufacture method of electric connector as claimed in claim 12 is characterized in that: in the steps d, in said space, pour the thermosetting resin of thick liquid nano into, and carry out that curing molding is said insulating body after the heat treated.
21. the manufacture method of electric connector as claimed in claim 12 is characterized in that: among the step e, carry out etch processes to form a plurality of isolated said conducting blocks to being positioned at said first part that connect beyond the face on the said conductive plate.
22. the manufacture method of electric connector as claimed in claim 12 is characterized in that: among the step e, be positioned at said first on the said conductive plate of use laser ablation and connect face part in addition to form a plurality of isolated said conducting blocks.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110451952 CN102412453B (en) | 2011-12-30 | 2011-12-30 | Electric connector and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110451952 CN102412453B (en) | 2011-12-30 | 2011-12-30 | Electric connector and manufacturing method thereof |
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| CN102412453A true CN102412453A (en) | 2012-04-11 |
| CN102412453B CN102412453B (en) | 2013-11-06 |
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| CN 201110451952 Active CN102412453B (en) | 2011-12-30 | 2011-12-30 | Electric connector and manufacturing method thereof |
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| CN104093282A (en) * | 2014-07-10 | 2014-10-08 | 海芝通电子(深圳)有限公司 | Circuit board wiring reinforcing process |
| CN111162397A (en) * | 2017-09-18 | 2020-05-15 | 富士康(昆山)电脑接插件有限公司 | Electrical connector |
| CN112736520A (en) * | 2020-12-18 | 2021-04-30 | 番禺得意精密电子工业有限公司 | Electric connector and manufacturing method thereof |
| CN112736617A (en) * | 2020-12-18 | 2021-04-30 | 番禺得意精密电子工业有限公司 | Method for manufacturing electric connector |
| CN114243324A (en) * | 2021-07-21 | 2022-03-25 | 番禺得意精密电子工业有限公司 | Electrical connector |
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| CN112736617B (en) * | 2020-12-18 | 2022-04-19 | 番禺得意精密电子工业有限公司 | Method for manufacturing electric connector |
| CN114243324A (en) * | 2021-07-21 | 2022-03-25 | 番禺得意精密电子工业有限公司 | Electrical connector |
| CN114243324B (en) * | 2021-07-21 | 2023-07-21 | 番禺得意精密电子工业有限公司 | Electric connector |
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| Publication number | Publication date |
|---|---|
| CN102412453B (en) | 2013-11-06 |
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