CN206610805U - It is a kind of to prevent the pin of failure welding - Google Patents
It is a kind of to prevent the pin of failure welding Download PDFInfo
- Publication number
- CN206610805U CN206610805U CN201720433486.7U CN201720433486U CN206610805U CN 206610805 U CN206610805 U CN 206610805U CN 201720433486 U CN201720433486 U CN 201720433486U CN 206610805 U CN206610805 U CN 206610805U
- Authority
- CN
- China
- Prior art keywords
- pin
- connecting portion
- insulation division
- failure welding
- welding
- 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.)
- Expired - Fee Related
Links
- 238000003466 welding Methods 0.000 title claims abstract description 31
- 238000009413 insulation Methods 0.000 claims abstract description 21
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 16
- 229910052802 copper Inorganic materials 0.000 claims abstract description 16
- 239000010949 copper Substances 0.000 claims abstract description 16
- 239000007787 solid Substances 0.000 claims abstract description 7
- 238000013461 design Methods 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 5
- 238000005538 encapsulation Methods 0.000 abstract description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 3
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 description 2
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 238000005476 soldering Methods 0.000 description 2
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000006071 cream Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
Abstract
The pin of failure welding is prevented the utility model discloses a kind of, belong to PCB encapsulation design fields, its structure includes insulation division and connecting portion, and insulation division is arranged on the relative side elevation of pin, connecting portion is between insulation division, and insulation division and connecting portion piece together cylindric pin jointly；Described connecting portion is solid copper.Compared to the prior art a kind of pin for preventing failure welding of the present utility model, changes the pin design method of traditional welding device, it is to avoid due to the drawbacks of radiating is too fast causes failure welding when welding device and PCB connections；Realize that technics comparing is simple, practicality is stronger.
Description
Technical field
The utility model is related to PCB encapsulation design fields, specifically a kind of to prevent the pin of failure welding.
Background technology
With the development of science and technology, welding device is more and more applied among server product.It is difficult along with PCB design
Degree is improved, and PCB layer number is more and more, and welding device needs and the more number of plies connections of PCB.Connected mode is the through hole on PCB
With the pin of welding device (such as plug-in unit electric capacity)（Copper post shape）Connection.This connected mode generally uses solder wave process, in mistake
Among the process of wave-soldering, because copper post surface area ratio is larger, the thermal diffusivity of copper is relatively good, in scolding tin not pin and pad
Fully before connection, scolding tin has just been cooled down, and is caused the pin failure welding of through hole and welding device, is caused rosin joint.
Exemplified by welding electric capacity, traditional welding electric capacity pin is a solid copper post shape.This pad be it is solid,
Whole cylinder can all be connected with PCB pad, due to whole copper post metal heat-conducting, it is easy to radiate, and cause crossing wave-soldering
When technique, tin cream has also just been cooled down without complete metal column is welded, and causes rosin joint.So often surveyed in electrical equipment
Find that welding is bad when examination, it is follow-up to need manual repair welding again, waste time and energy.
The content of the invention
Technical assignment of the present utility model is that there is provided a kind of simple in construction, production cost is low, easy for above weak point
In processing, environmentally safe a kind of prevent the pin of failure welding.
The utility model solves the technical scheme that its technical problem used：It is a kind of to prevent the pin of failure welding, bag
Insulation division and connecting portion are included, insulation division is arranged on the relative side elevation of pin, connecting portion is between insulation division, insulation
Portion and connecting portion piece together cylindric pin jointly；Described connecting portion is solid copper.
Further, structure preferably is, the width at the most narrow place of the cross section of described connecting portion is more than the half of pin
Footpath.
Further, structure preferably is that the cross section of described insulation division is almond-shaped, semicircle, ellipse or fan
Shape.
Further, structure preferably is that described insulation division is at least two pieces.
Further, structure preferably is, the length of the curved edge of described connecting portion is more than the 1/2 of pin girth.
Compared to the prior art a kind of pin for preventing failure welding of the present utility model, has the beneficial effect that：
1st, the utility model changes the pin design method of traditional welding device, avoid welding device and during PCB connections by
In radiate it is too fast cause failure welding the drawbacks of；
2nd, realize that technics comparing is simple, practicality is stronger；
3rd, cost, economical environment-protective are reduced.
Brief description of the drawings
The utility model is further illustrated below in conjunction with the accompanying drawings.
Accompanying drawing 1 is a kind of structural representation for the pin for preventing failure welding；
Accompanying drawing 2 is the top view of accompanying drawing 1；
Wherein：1st, pin；2nd, insulation division；3rd, connecting portion.
Embodiment
The utility model is described in further detail with specific embodiment below in conjunction with the accompanying drawings.
Embodiment 1：
It is of the present utility model it is a kind of prevent the pin of failure welding, its structure includes this new package pins design, will
Pin 1 is divided into three parts from an original copper post.Both sides white portion uses heat-insulated insulation division 2, and center section is to connect
Socket part.Described connecting portion 3 is solid copper, and the cross section of the insulation division 2 on both sides is almond-shaped.
Because electric capacity pin is needed by than larger electric current, so heat-barrier material part can not be too big.But in order to keep away
Exempt from the too fast problem that radiates, can not be too small.Tested by many experiments room, general copper sheet member-retaining portion surface area is probably original
More than half is optimal.The most narrow place in pin center section is not less than the radius of original copper post.
Such as it is the top view of pin as shown in Figure 2：Assuming that the radius of original pin is r, girth is l.Need to meet, d
Not less than r, s represents the length of that section of radian, it is necessary to meet, and 2s is not less than 0.5l.Weldering that is through-flow but also meeting so not only was met
Connect demand.
Embodiment 2：
It is of the present utility model it is a kind of prevent the pin of failure welding, its structure includes this new package pins design, will
Pin 1 is divided into three parts from an original copper post.Both sides white portion uses heat-insulated insulation division 2, and center section is to connect
Socket part.Described connecting portion 3 is solid copper, and the cross section of the insulation division 2 on both sides is semicircle.
Because electric capacity pin is needed by than larger electric current, so heat-barrier material part can not be too big.But in order to keep away
Exempt from the too fast problem that radiates, can not be too small.Tested by many experiments room, general copper sheet member-retaining portion surface area is probably original
More than half is optimal.The most narrow place in pin center section is not less than the radius of original copper post.
Such as it is the top view of pin as shown in Figure 2：Assuming that the radius of original pin is r, girth is l.Need to meet, d
Not less than r, s represents the length of that section of radian, it is necessary to meet, and 2s is not less than 0.5l.Weldering that is through-flow but also meeting so not only was met
Connect demand.
By embodiment above, the those skilled in the art can readily realize the utility model.But
It is it should be appreciated that the utility model is not limited to above-mentioned several embodiments.On the basis of disclosed embodiment,
The those skilled in the art can be combined different technical characteristics, so as to realize different technical schemes.
Claims (5)
1. a kind of prevent the pin of failure welding, it is characterised in that including insulation division and connecting portion, insulation division is arranged on pin
Relative side elevation on, connecting portion is between insulation division, and insulation division and connecting portion piece together cylindric pin jointly；It is described
Connecting portion be solid copper.
A kind of prevent the pin of failure welding 2. according to claim 1, it is characterised in that described connecting portion it is transversal
The width at the most narrow place in face is more than the radius of pin.
A kind of prevent the pin of failure welding 3. according to claim 1, it is characterised in that described insulation division it is transversal
Face is almond-shaped, semicircle, ellipse or sector.
4. a kind of the pin of failure welding is prevented according to claim 2, it is characterised in that described insulation division is at least
Two pieces.
5. a kind of the pin of failure welding is prevented according to claim 2, it is characterised in that the arc of described connecting portion
The length at edge is more than the 1/2 of pin girth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720433486.7U CN206610805U (en) | 2017-04-24 | 2017-04-24 | It is a kind of to prevent the pin of failure welding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720433486.7U CN206610805U (en) | 2017-04-24 | 2017-04-24 | It is a kind of to prevent the pin of failure welding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206610805U true CN206610805U (en) | 2017-11-03 |
Family
ID=60167559
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720433486.7U Expired - Fee Related CN206610805U (en) | 2017-04-24 | 2017-04-24 | It is a kind of to prevent the pin of failure welding |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206610805U (en) |
-
2017
- 2017-04-24 CN CN201720433486.7U patent/CN206610805U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171103 Termination date: 20180424 |