CN205961599U - Prevent open cell structure of tin sweat(ing) printing steel mesh - Google Patents
Prevent open cell structure of tin sweat(ing) printing steel mesh Download PDFInfo
- Publication number
- CN205961599U CN205961599U CN201620760997.5U CN201620760997U CN205961599U CN 205961599 U CN205961599 U CN 205961599U CN 201620760997 U CN201620760997 U CN 201620760997U CN 205961599 U CN205961599 U CN 205961599U
- Authority
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- China
- Prior art keywords
- ing
- steel mesh
- tin
- tin sweat
- sweat
- 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
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- 210000004243 Sweat Anatomy 0.000 title claims abstract description 30
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 29
- 239000010959 steel Substances 0.000 title claims abstract description 29
- ATJFFYVFTNAWJD-UHFFFAOYSA-N tin hydride Chemical compound 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[Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 title abstract description 29
- 239000006071 cream Substances 0.000 abstract description 14
- 238000003466 welding Methods 0.000 abstract description 12
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 230000002265 prevention Effects 0.000 abstract 1
- 230000000875 corresponding Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 101700030570 pad-1 Proteins 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
Abstract
The utility model provides a prevent open cell structure of tin sweat(ing) printing steel mesh, prevent open cell structure of tin sweat(ing) printing steel mesh corresponds with the position of pad, and it includes first trompil, intermediate junction portion and second trompil in proper order from one side to the opposite side, the limit is connected to the second that intermediate junction portion includes the first connection limit be connected with first trompil, be connected with the second trompil, the arc that the limit is the indent is connected to first connection limit, second. Adopt the technical scheme of the utility model, when the tin cream is brushed on the pad through this printing steel screen print, thereby both sides are not because of there being the tin cream to cover that both sides all can not produce the tin sweat(ing) when the welding, and improve the quality of leads directly to the rate to reach can be effectual the production of prevention tin sweat(ing), welding to components and parts that again can be full have improved production efficiency, moreover can the volume of saving the tin cream, the cost is reduced.
Description
Technical field
This utility model is related to a kind of printed steel mesh, the open-celled structure of more particularly, to a kind of anti-tin sweat(ing) printed steel mesh.
Background technology
At present, in the assembling of SMD product produces, typically by the way of printing by paste solder printing on pcb board, then
Paster SMD components are attached to corresponding position welded, but traditional printed steel mesh is all to be opened according to the position of pad
If square opening, be illustrated in figure 1 the steel mesh open-celled structure of a corresponding pad, be printed on pad by this printed steel mesh
Tin cream face is centre no tin cream, and there is the structure of square tin cream face both sides, such tin cream when welding through high temperature reflux, inside middle
Easily tin sweat(ing) occurs inside square scolding tin, cause failure welding.Improved printed steel mesh is that the common u-shaped of the indent adopting is opened
The anti-tin sweat(ing) scheme in hole, as shown in Figure 2.But this scheme, for special type components and parts it is impossible to accomplish to prevent U-shaped perforate two
The tin sweat(ing) of side produces, and so results in the need for manually processing, takes time and effort, and produces and low quality.Although excessive by steel
The mesh of net reduces the generation that can prevent tin sweat(ing), but can reduce simultaneously its little with the bond area of components and parts it is impossible to meet weldering
Connect standard.
Utility model content
For above technical problem, the utility model discloses a kind of open-celled structure of anti-tin sweat(ing) printed steel mesh, both reach
Can effectively prevent the generation of tin sweat(ing), but can be full be welded to components and parts, meet welding requirements.
In this regard, the technical solution of the utility model is：
A kind of open-celled structure of anti-tin sweat(ing) printed steel mesh, the open-celled structure of described anti-tin sweat(ing) printed steel mesh and the position of pad
Corresponding, it includes the first perforate, middle interconnecting piece and the second perforate from side to opposite side successively, and described middle interconnecting piece includes
In the second connection being connected with the second perforate, described first connects side, the second connection for the first connection being connected with the first perforate
Side is the arc of indent.Wherein, described middle interconnecting piece is not perforate.Using this technical scheme, tin cream passes through this printing steel
When the open-celled structure of net is printed onto this pad, both sides in the middle of pad, because not having tin cream to cover thus all will not in both sides in welding
Produce tin sweat(ing), improve quality first-pass yield.
As further improvement of the utility model, the described first minimum range connecting when being connected with second is pad
The 1/8 ~ 2/5 of length.Using this technical scheme, in the case of reducing welding tin cream consumption, full welding component, and weld
Connect and in rear pad, do not produce tin sweat(ing).
As further improvement of the utility model, described first connects in, the second symmetrical separation when connecting in described
The both sides of middle interconnecting piece centrage.
As further improvement of the utility model, described first connect while, second connect while be semicircle.
As further improvement of the utility model, the described first minimum range connecting when being connected with second is pad
The 1/6 ~ 1/3 of length.Using this technical scheme, in the case of reducing welding tin cream consumption as far as possible, welding that can be fuller
Components and parts, while meeting weld strength requirement, and do not produce tin sweat(ing) in pad after welding.
Compared with prior art, the beneficial effects of the utility model are：
Using the technical solution of the utility model, when tin cream is printed onto on pad by this printed steel mesh, both sides are not because having
Tin cream covers thus both sides all will not produce tin sweat(ing), improve quality first-pass yield, thus reach effectively to prevent in welding
The generation of tin sweat(ing), and full can be welded to components and parts；Will not produce other abnormal, production quality and efficiency settle at one go, carry
High production efficiency；And tin cream amount can be saved, reduce cost.
Brief description
Fig. 1 is a kind of open-celled structure schematic diagram of printed steel mesh of prior art.
Fig. 2 is the common u-shaped open-celled structure schematic diagram that prior art improves printed steel mesh indent.
Fig. 3 is a kind of open-celled structure schematic diagram of anti-tin sweat(ing) printed steel mesh of this utility model.
Specific embodiment
Below in conjunction with the accompanying drawings, preferably embodiment of the present utility model is described in further detail.
As shown in figure 3, a kind of open-celled structure of anti-tin sweat(ing) printed steel mesh, the open-celled structure of described anti-tin sweat(ing) printed steel mesh with
The position of pad 1 corresponds to, the open-celled structure of described anti-tin sweat(ing) printed steel mesh include successively from side to opposite side the first perforate 2,
Middle interconnecting piece 3 and the second perforate 4, the first connection side 31 that described middle interconnecting piece 3 includes being connected with the first perforate 2 and the
Two perforate 4 connect second connection side 32, described first connect while 31, second connect while 32 be indent arc.Described first
Connect 32 symmetrical the living apart in the both sides of described middle interconnecting piece 3 centrage when 31, second connects.Described first connection side
31st, second connects side 32 for semicircle, and the described first minimum range connecting when 31 are connected with second 32 is length of bonding pad
1/6 ~ 1/3, that is, the first connection the distance between 32 semi-circular top when 31 semi-circular top connects to second is pad
The 1/6 ~ 1/3 of total length.
The specific embodiment of the above is better embodiment of the present utility model, not limits this practicality with this new
Type be embodied as scope, scope of the present utility model includes being not limited to this specific embodiment, all according to this utility model
Shape, the equivalence changes made of structure are all in protection domain of the present utility model.
Claims (5)
1. a kind of open-celled structure of anti-tin sweat(ing) printed steel mesh it is characterised in that：The open-celled structure of described anti-tin sweat(ing) printed steel mesh with
The position of pad corresponds to, and it includes the first perforate, middle interconnecting piece and the second perforate, described centre from side to opposite side successively
Connecting portion includes the first connection being connected with the first perforate in the second connection being connected with the second perforate, described first connection
While, second connect while be indent arc.
2. anti-tin sweat(ing) printed steel mesh according to claim 1 open-celled structure it is characterised in that：Described first connection side,
Second connection symmetrical the living apart in the both sides of described middle interconnecting piece centrage in side.
3. anti-tin sweat(ing) printed steel mesh according to claim 2 open-celled structure it is characterised in that：Described first connection side,
Second connects side for semicircle.
4. the anti-tin sweat(ing) printed steel mesh according to claim 1 ~ 3 any one open-celled structure it is characterised in that：Described
One minimum range connecting when being connected with second is the 1/8 ~ 2/5 of length of bonding pad.
5. anti-tin sweat(ing) printed steel mesh according to claim 4 open-celled structure it is characterised in that：Described first connect side with
The minimum range on the second connection side is the 1/6 ~ 1/3 of length of bonding pad.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620760997.5U CN205961599U (en) | 2016-07-19 | 2016-07-19 | Prevent open cell structure of tin sweat(ing) printing steel mesh |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620760997.5U CN205961599U (en) | 2016-07-19 | 2016-07-19 | Prevent open cell structure of tin sweat(ing) printing steel mesh |
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| Publication Number | Publication Date |
|---|---|
| CN205961599U true CN205961599U (en) | 2017-02-15 |
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| CN (1) | CN205961599U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110678008A (en) * | 2019-09-24 | 2020-01-10 | 苏州浪潮智能科技有限公司 | Steel mesh of circuit board display connector and preparation method thereof |
-
2016
- 2016-07-19 CN CN201620760997.5U patent/CN205961599U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110678008A (en) * | 2019-09-24 | 2020-01-10 | 苏州浪潮智能科技有限公司 | Steel mesh of circuit board display connector and preparation method thereof |
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| C14 | Grant of patent or utility model | ||
| 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: 20170215 Termination date: 20190719 |