CN103972678A - Electrical connector and electrical connector system - Google Patents
Electrical connector and electrical connector system Download PDFInfo
- Publication number
- CN103972678A CN103972678A CN201310044633.8A CN201310044633A CN103972678A CN 103972678 A CN103972678 A CN 103972678A CN 201310044633 A CN201310044633 A CN 201310044633A CN 103972678 A CN103972678 A CN 103972678A
- Authority
- CN
- China
- Prior art keywords
- electric connector
- circuit board
- pin terminals
- insulating body
- external circuit
- 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.)
- Pending
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Abstract
An electrical connector comprises an insulation body and lead terminals fixed thereto. Each lead terminal is provided with an extension which extends down out of the insulation body. Each extension is provided with an uneven surface. An electrical connector system with the electrical connector is also disclosed. Compared with the prior art, the electrical connector has the advantage that welding rate of the lead terminals is higher.
Description
[technical field]
The present invention relates to a kind of electric connector and system thereof with pin terminals, relate in particular to the structure of pin terminals.
[background technology]
Prior art please refer to the CN202474375U Chinese utility model patent of bulletin on October 3rd, 2012.This patent discloses a kind of electric connector, comprises insulating body and is immobilizated in the pin terminals of insulating body.Pin terminals has the extension that extends beyond insulating body and be direct rod shape, and this extension utilizes Through-hole reflow technology to be soldered to a external circuit board.The external circuit board has the through hole of default soldering paste, and pin terminals is inserted after the through hole of default soldering paste, is placed into the welding that brazier completes pin terminals.Because extension is direct rod shape, extension and soldering paste contact area are little, and extension inserts in the via process of default soldering paste, and soldering paste easily comes off, the possibility of the weldering of also will having time.
[summary of the invention]
Technical problem to be solved by this invention is: pin terminals and the external circuit board have high welding yield.
The invention provides a kind of electric connector, comprise insulating body and be immobilizated in the pin terminals of insulating body.Pin terminals has the extension that extends beyond insulating body downwards, and described extension has the surface of concavo-convex setting.
The invention provides a kind of electric connector system, comprise above-mentioned electric connector and a external circuit board.The external circuit board has a bottom surface and some through holes, and electric connector has the pin terminal that extends beyond bottom surface downwards, and this pin terminal utilizes wave soldering to the external circuit board.Electric connector also has the pin terminals that does not surpass bottom surface to downward-extension, and this pin terminals utilizes Through-hole reflow to be soldered to a external circuit board.
Its system of electric connector of the present invention and tool, due to the concavo-convex setting of extension of pin terminals, has increased the contact area of the tin cream on extension and the external circuit board, and welding tin cream detin probability will reduce, and the chance of empty weldering is also just less.
[accompanying drawing explanation]
Fig. 1 is the stereogram of electric connector system of the present invention.
Fig. 2 is that electric connector system shown in Fig. 1 is along the cutaway view of A-A line direction.
Fig. 3 is the stereogram of electric connector shown in Fig. 1.
Fig. 4 is the stereogram at another visual angle of electric connector shown in Fig. 3.
Fig. 5 is the exploded view of electric connector shown in Fig. 3.
[main element symbol description]
| The first insulating body | 1 | Docking terminal | 31 |
| Electric connector | 100 | Circuit board module | 4 |
| Antetheca | 11 | Welding hole | 41 |
| Diapire | 12 | Conducting strip | 42 |
| Roof | 13 | Magnetic coil | 43 |
| Sidewall | 14 | Pin terminals | 5 |
| Mounting groove | 141 | First | 51 |
| Craft port | 15 | Second | 52 |
| The second insulating body | 2 | Projection | 521 |
| The external circuit board | 200 | The 3rd | 53 |
| End face | 201 | Groove | 531 |
| Bottom surface | 202 | Projection | 532 |
| Through hole | 203 | Chamfering | 533 |
| Mating groove | 21 | Light-emitting diode | 6 |
| Straight hole | 22 | Shield shell | 7 |
| Butt end sub-block | 3 | Pin terminal | 61、71 |
| Collets | 30 | Soldering paste | 8 |
| Electric connector system | 300 |
Following embodiment further illustrates the present invention in connection with above-mentioned accompanying drawing.
[embodiment]
Shown in please refer to the drawing 1-2, a kind of electric connector system 300 comprises electric connector 100 and the external circuit board 200.
The external circuit board 200 has end face 201, bottom surface 202 and runs through end face 201 and the through hole 203 of bottom surface 202.On the heavy board-like circuit board 200 mounted externally of electric connector 100, and its main part is positioned at the upside of the external circuit board 200 end faces 201.Electric connector 100 has the pin terminal 61,71 that extends beyond bottom surface 202 downwards, and does not surpass the pin terminals 5 of bottom surface 202 to downward-extension.Pin terminals 5 is utilized Through-hole reflow (Through-hole Reflow, THR), has another name called pin-in-paste (pin in paste, PIP) and is soldered to the external circuit board 200, and pin terminal 61,71 utilizes Wave crest Welding to the external circuit board 200.At this, simply introduce the technical process of Through-hole reflow technology: first utilize scraper or coating that soldering paste 8 is filled in the through hole 203 of the external circuit board 200, then pin terminals 5 is inserted into from top to bottom in the through hole 203 that is filled with soldering paste 8, finally the external circuit board 200 modules is put into the welding that brazier processing realizes pin terminals 5.
Pin terminals 5 length are longer, and the chance that tin cream of pin terminals 5 bottoms drops is larger, cause the chance of empty weldering just larger.Pin terminals 5 Billys of the present invention do not exceed the bottom surface 202 of the external circuit board 200 downwards by pin terminal 61, the 71 Duan ﹐ pin terminals 5 of Wave crest Welding, and pin terminal 61,71 exceeds the bottom surface 202 of the external circuit board 200 downwards.This ﹐ of Cheng that shorter pin terminals 5 the has reduced electric connector 100 simultaneously easier Bao Zheng of the normotopia degree ﹐ of pin terminals 5 has improved the welding yield of product.
As shown in Figures 3 to 5, electric connector 100 comprises: the first insulating body 1, the second insulating body 2, butt end sub-block 3, circuit board module 4, pin terminals 5, light-emitting diode 6 and shield shell 7.Butt end sub-block 3 is arranged on the front side of the second insulating body 2, and pin terminals 5 is retained on the rear side of the second insulating body 2.The upper rear flank that circuit board module 4 is installed on butt end sub-block 3, the second insulating body 2 and pin terminals 5 forms an insert, and this insert inserts and is mounted to the first insulating body 1.
The first insulating body 1 is roughly square, and it comprises antetheca 11, diapire 12, roof 13 and two side 14.The first insulating body 1 has the craft port 15 of inserting for butt connector (not shown), and this craft port 15 is arranged at the front side of the first insulating body 1, and runs through forward antetheca 11.The rear side of the first insulating body 1 is also provided with the installation port (not shown) connecting with craft port 15, and described butt end sub-block 3 is mounted to forward craft port 15 from port is installed.The sidewall 14 of the first insulating body 1 is provided with the mounting groove 141 of installing for light-emitting diode 6.
Butt end sub-block 3 by collets 30 with dock terminal 31 insert-moldings (insert-molding).The front side of the second insulating body 2 has the mating groove 21 coordinating with butt end sub-block 3.The rear side of the second insulating body 2 has the straight hole 22 of some above-below directions extensions for the insertion of pin terminals 5.
The front end of circuit board module 4 and rear end have respectively between row's welding hole 41, two row's welding holes 41 and have between two row's conducting strip 42, two row's conducting strips 42 and have some magnetic coils 43.These magnetic coils 43 are transformer and common mode inhibition device, and docking terminal 31 is electrically connected to pin terminals 5 by the transformer on circuit board module 4 and common mode inhibition device.
As shown in Figure 2 and Figure 4, pin terminals 5 is laterally arranged in front and back two rows on left and right directions.Pin terminals 5 has 51, the second 52 of Firsts and the 3rd or extension 53 from top to bottom.First 51 is welded in 41, the second 52 of welding holes and is immobilizated in straight hole 22, and the 3rd extends beyond the second insulating body 2 downwards.Second 52 all wider than First 51 and the 3rd 53.First 51 is direct rod shape, and the left and right sides of second 52 has 521, the three 53 left and right concave-convex surfaces of the projection of interference and arranges.In its left side and right side, there is groove 531, the projection 532 that repeats successively from top to bottom to arrange, therefore the 3rd the equal indentation in 53 left sides and right side for the 3rd 53.The setting of mutually staggering of the 3rd 53 jagged groove in both sides 531 and projection 532, has guaranteed the intensity of the 3rd 53.The bottom of the 3rd 53 has the chamfering 533 of being convenient to insert the external circuit board 200.Pin terminals 5 does not surpass the bottom surface 202 of the external circuit board 200 to downward-extension.Due to the 3rd 53 concave-convex surface settings of pin terminals 5, so the 3rd 53 soldering paste 8 contacts area with the external circuit board 200 are larger, thereby while having improved Through-hole reflow, Han meets Dinging Xing of Wen ﹐ and has reduced empty weldering fraction defective.
Shield shell 7 is coated on the outside of the first insulating body 1 and the second insulating body 2.The bottom of shield shell 7 has the first pin terminal 71 that extends beyond bottom surface 202 downwards, and light-emitting diode 6 also has the second pin terminal 61 that extends beyond bottom surface 202 downwards.Pin terminals 5 utilizes Through-hole reflow to be soldered to after the external circuit board 200, and the first pin terminal 71, the second pin terminal 61 utilize wave soldering to be soldered to the external circuit board 200.
Claims (10)
1. an electric connector, comprises insulating body and is immobilizated in the pin terminals of insulating body, described pin terminals has the extension that extends beyond insulating body downwards, it is characterized in that: described extension has the surface of concavo-convex setting.
2. electric connector as claimed in claim 1, is characterized in that: described electric connector comprises the pin terminals that two rows arrange along left and right directions, and the extension of each pin terminals has convex-concave surface in its left side or right side.
3. electric connector as claimed in claim 1, is characterized in that: extension left side and the equal indentation in right side of described pin terminals.
4. electric connector as claimed in claim 3, is characterized in that: described zigzag by the groove that repeats successively from top to bottom to arrange, convex to form.
5. electric connector as claimed in claim 3, is characterized in that: the asymmetric setting in the left side of described indentation and right side.
6. electric connector as claimed in claim 1, is characterized in that: the bottom of described extension has the chamfering of being convenient to insert the external circuit board.
7. electric connector as claimed in claim 1, it is characterized in that: described insulating body comprises the first insulating body and the second insulating body, the first insulating body has the craft port of inserting for butt connector, described electric connector also comprises docking terminal and circuit board module, docking terminal is electrically connected to pin terminals by circuit board module, and described circuit board module is installed on the top of the second insulating body.
8. electric connector as claimed in claim 1, it is characterized in that: described electric connector also comprises the shield shell of coated insulation body, this shield shell has the pin terminal that extends beyond pin terminals downwards, pin terminals can be soldered to a external circuit board by Through-hole reflow, pin terminal can Wave crest Welding to described the external circuit board.
9. an electric connector system, comprise electric connector as claimed in claim 1 and a external circuit board, described the external circuit board has a bottom surface and some through holes, described electric connector has the pin terminal that extends beyond bottom surface downwards, this pin terminal utilizes wave soldering to the external circuit board, it is characterized in that: described electric connector also has the pin terminals that does not surpass bottom surface to downward-extension, and this pin terminals utilizes Through-hole reflow to be soldered to the external circuit board.
10. electric connector system as claimed in claim 9, is characterized in that: described pin terminals is inserted in the through hole that presets soldering paste.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310044633.8A CN103972678A (en) | 2013-02-05 | 2013-02-05 | Electrical connector and electrical connector system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310044633.8A CN103972678A (en) | 2013-02-05 | 2013-02-05 | Electrical connector and electrical connector system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103972678A true CN103972678A (en) | 2014-08-06 |
Family
ID=51241914
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310044633.8A Pending CN103972678A (en) | 2013-02-05 | 2013-02-05 | Electrical connector and electrical connector system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103972678A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105633658A (en) * | 2014-11-21 | 2016-06-01 | 矢崎总业株式会社 | Substrate terminal |
| WO2016127334A1 (en) * | 2015-02-11 | 2016-08-18 | 华为技术有限公司 | Electronic element pin and electronic element |
| CN111834766A (en) * | 2020-06-20 | 2020-10-27 | 苏州浪潮智能科技有限公司 | Connector structure and welding method of connector and PCB |
| WO2022170550A1 (en) * | 2021-02-10 | 2022-08-18 | Amphenol Corporation | Surface mount electrical connector |
-
2013
- 2013-02-05 CN CN201310044633.8A patent/CN103972678A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105633658A (en) * | 2014-11-21 | 2016-06-01 | 矢崎总业株式会社 | Substrate terminal |
| CN105633658B (en) * | 2014-11-21 | 2018-01-26 | 矢崎总业株式会社 | Substrate terminal |
| WO2016127334A1 (en) * | 2015-02-11 | 2016-08-18 | 华为技术有限公司 | Electronic element pin and electronic element |
| CN111834766A (en) * | 2020-06-20 | 2020-10-27 | 苏州浪潮智能科技有限公司 | Connector structure and welding method of connector and PCB |
| WO2022170550A1 (en) * | 2021-02-10 | 2022-08-18 | Amphenol Corporation | Surface mount electrical connector |
| US11710916B2 (en) | 2021-02-10 | 2023-07-25 | Amphenol Corporation | Surface mount electrical connector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140806 |