CN203467057U - Multiple-aperture hole-plugging aluminum sheet - Google Patents
Multiple-aperture hole-plugging aluminum sheet Download PDFInfo
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- CN203467057U CN203467057U CN201320523897.7U CN201320523897U CN203467057U CN 203467057 U CN203467057 U CN 203467057U CN 201320523897 U CN201320523897 U CN 201320523897U CN 203467057 U CN203467057 U CN 203467057U
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- aperture
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- circular hole
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Abstract
The utility model discloses a multiple-aperture hole-plugging aluminum sheet. The multiple-aperture hole-plugging aluminum sheet comprises an aluminum sheet body and circular holes disposed on the aluminum sheet body. Positions of the circular holes are corresponding to positions of via holes of holes to be plugged on a circuit board, and apertures of the circular holes are corresponding to apertures of the via holes one by one. The multiple-aperture hole-plugging aluminum sheet are provided with a plurality of the circular holes, and the circular holes are corresponding to the via holes of the holes to be plugged on the circuit board one by one, so hole plugging of the whole circuit board having multiple apertures can be completed at a time by utilizing the aluminum sheet. In addition, the apertures of the circular holes are corresponding to the apertures of the via holes, i.e., the circular holes have a plurality of different dimensions, so, when the hole plugging is guaranteed, printing ink as a filler are subjected to the same hole-plugging pressure in the via holes having the different dimensions, the problem that the hole plugging is not full is prevented, the problems of oil bounce, hole blasting and the like are also prevented, and the quality of the hole plugging is improved.
Description
Technical field
The utility model relates to a kind of multiple aperture consent aluminium flake.
Background technology
While producing circuit board, in order to prevent the surface installation technique at SMT() while mounting, tin sweat(ing) flows to from one side the element short circuit that another side causes, and conventionally can carry out anti-welding consent to this circuit board.Existing anti-welding consent is used consent aluminium flake covering board, and usings ink and clog via hole as filler; For guaranteeing consent quality, conventionally use and clog compared with the circular aluminium flake of the large 2mil in aperture.But this consent mode can only be applied to the via hole of same apertures, but the development along with circuit-board industry, consent aperture has increased to 0.8mm from 0.2mm, and the via hole that usually there will be the multiple aperture differing greatly on a circuit board, this just makes traditional consent aluminium flake compared with the large 2mil in via hole aperture cannot meet existing demand, use by force and be easy to occur bullet oil, blast hole, the problems such as consent is not full, therefore need badly consent aluminium flake is optimized, make it guaranteeing under the prerequisite of quality of circuit board, consent when a plurality of different pore size via hole on reality circuit board.
Utility model content
The utility model, for solving the problems of the technologies described above, provides a kind of multiple aperture consent aluminium flake, by using this multiple aperture consent aluminium flake, can make anti-welding contraposition reach the object that efficiency is high, error is little, and save production cost.
The technical solution adopted in the utility model is as follows:
A multiple aperture consent aluminium flake, comprises aluminium flake main body, is arranged on the circular hole in aluminium flake main body, and described circular hole is corresponding one by one with the position of via hole for the treatment of consent on circuit board, and the aperture of described circular hole is corresponding with via hole aperture.
Because multiple aperture consent aluminium flake is provided with a plurality of circular holes, and this circular hole is corresponding one by one with the via hole for the treatment of consent on circuit board, uses this aluminium flake, just can once complete whole the consent work with multiple aperture circuit board.In addition, because the aperture of circular hole is corresponding with via hole aperture, be that circular hole has multiple different size, this is when having guaranteed consent, the consent pressure being subject in the via hole of each different size as the ink of filler is identical, avoided the problems such as bullet oil, blast hole, consent is not full, the quality of consent is provided.
After aluminium flake completes, can in the making of same batch of circuit board, be repeatedly used, can effectively guarantee the working (machining) efficiency of consent.
Described circular hole comprises maximum circular hole, minimum circular hole and remaining middle circular hole; The position of described maximum circular hole is corresponding with the via hole of size and size maximum, and the position of described minimum circular hole is corresponding with the via hole of size and size minimum; If the aperture that maximum circular hole aperture is Dn, minimum circular hole is D1, maximum via hole aperture is that dn, minimum via hole aperture are d1, described Dn, D1, dn, d1 meet following corresponding relation:
1) when dn-d1 < 0.2mm:
D1=d1+0.1mm;
Dn=dn+0.05mm；
2) when dn-d1 >=0.2mm:
D1=(d1+dn)/2;
Dn=dn/2；
3) when dn-d1 >=0.4mm:
D1=(d1+dn)/2;
Dn=(dn-d1)/2。
Consent operation normally uses ink as inserts, and ink is in a liquid state at normal temperatures, has mobility; Ink is filled in via hole, will be subject to from the consent pressure that hole wall transmits excessively, and consent pressure can changes along with the variation in via hole aperture.When consent pressure is excessive or when too small, will cause the quality problem such as bullet oil, blast hole, consent is not full.Therefore, for obtaining better quality, inventor has launched research to the selection of best circular hole size, and has obtained above-mentioned data.
Because the size of via hole corresponding to maximum circular hole is larger, its consent pressure reduces the change along with aperture greatly, and therefore, this hole, when consent, easily occurs because of too low consent pressure the phenomenon that consent is not full.For solving this technical barrier, inventor obtains smaller by the aperture design of the maximum circular hole on aluminium flake; When using scraper frizing, this less circular hole just can limit the amount that ink flows out via hole, as far as possible more ink is retained in via hole, improves consent pressure, thereby avoids the not full problem of consent.
The situation of minimum circular hole is just in time contrary, and corresponding via size is less, and consent pressure is larger, easily occurs the quality problem such as blast hole.For fear of this class quality problem, inventor suitably expands the aperture of the minimum circular hole on aluminium flake, during scraper frizing, can there is more ink to flow out in larger circular hole, enter and more ink may be discharged to via hole, reduce consent pressure, thereby avoid the problem of blast hole.
Because the size difference of via hole in reality may be very large, so also just mean differing greatly of consent pressure, must do further accurately restriction to circular hole size.In order to obtain the most appropriate circular hole size, using maximum via hole and minimum via hole difference as standard, be divided into three levels: be less than 0.2mm, between 0.2mm and 0.4mm, be greater than 0.4mm; In different levels, the offset of circular hole is different, and design parameter as mentioned above.
If middle circular hole aperture is Dx, is dx with corresponding via hole aperture, described Dx, dx meet following corresponding relation:
1) when dx-d1 < dn-dx:
Dx=D1+0.05 * [(dx-d1)/0.1];
2) when dx-d1=dn-dx:
Dx=(D1+Dn)/2;
3) when dx-d1 > dn-dx:
Dx=Dn-0.05 * [(dx-d1)/0.1].
With maximum, minimum circular hole is similar, the size in middle circular hole aperture also needs further adjustment, just can avoid the quality defects such as blast hole, consent be not full.Due to usually more than one of middle circular hole, it specifically needs great size in practical operation, is a more scabrous knotty problem.Inventor passes through the knowledge of oneself, and in conjunction with repeated multiple times experiment, has finally obtained desirable compensation relationship.
Use the mean value of maximum via hole and minimum via hole as the foundation of judgement, be divided into equally three levels: median pore radius is less than mean value, equals mean value, is greater than mean value.In different levels, the offset of circular hole is different, and design parameter as mentioned above.
The length of described aluminium flake main body, width are identical with length, the width of circuit board under test, and the thickness of described aluminium flake main body is 4-10mil.
This multiple aperture consent aluminium flake is the oil baffle covering on circuit board, therefore its size must be consistent with circuit board, in addition aluminium plate thickness is 4-10mil, has not only guaranteed that aluminium sheet is lighter, but also have more satisfactory intensity, after boring, still can keep original template.In addition, aluminium flake, when realizing via hole aperture compensation, can also guarantee not pollute ink, avoids the risk of oil impregnate.
Compared with prior art, the beneficial effects of the utility model are: the utility model is because multiple aperture consent aluminium flake is provided with a plurality of circular holes, and this circular hole is corresponding one by one with the via hole for the treatment of consent on circuit board, use this aluminium flake, just can once complete whole the consent work with multiple aperture circuit board.In addition, because the aperture of circular hole is corresponding with via hole aperture, be that circular hole has multiple different size, this is when having guaranteed consent, the consent pressure being subject in the via hole of each different size as the ink of filler is identical, avoided the problems such as bullet oil, blast hole, consent is not full, the quality of consent is provided.
Accompanying drawing explanation
Fig. 1 is the structure chart of multiple aperture consent aluminium flake of the present utility model.
Embodiment
For the ease of it will be appreciated by those skilled in the art that below in conjunction with accompanying drawing and embodiment, the utility model is described in further detail.
Please refer to Fig. 1, the utility model embodiment comprises:
A multiple aperture consent aluminium flake, comprises aluminium flake main body 1, is arranged on the circular hole in aluminium flake main body, and described circular hole is corresponding one by one with the position of via hole for the treatment of consent on circuit board, and the aperture of described circular hole is corresponding with via hole aperture.
Because multiple aperture consent aluminium flake is provided with a plurality of circular holes, and this circular hole is corresponding one by one with the via hole for the treatment of consent on circuit board, uses this aluminium flake, just can once complete whole the consent work with multiple aperture circuit board.In addition, because the aperture of circular hole is corresponding with via hole aperture, be that circular hole has multiple different size, this is when having guaranteed consent, the consent pressure being subject in the via hole of each different size as the ink of filler is identical, avoided the problems such as bullet oil, blast hole, consent is not full, the quality of consent is provided.
After aluminium flake completes, can in the making of same batch of circuit board, be repeatedly used, can effectively guarantee the working (machining) efficiency of consent.
Described circular hole comprises maximum circular hole 2, minimum circular hole 3 and remaining middle circular hole; The position of described maximum circular hole 2 is corresponding with the via hole of size and size maximum, and the position of described minimum circular hole 3 is corresponding with the via hole of size and size minimum; If the aperture that maximum circular hole 2 apertures are Dn, minimum circular hole 3 is D1, maximum via hole aperture is that dn, minimum via hole aperture are d1, described Dn, D1, dn, d1 meet following corresponding relation:
1) when dn-d1 < 0.2mm:
D1=d1+0.1mm;
Dn=dn+0.05mm；
2) when dn-d1 >=0.2mm:
D1=(d1+dn)/2;
Dn=dn/2；
3) when dn-d1 >=0.4mm:
D1=(d1+dn)/2;
Dn=(dn-d1)/2。
Consent operation normally uses ink as inserts, and ink is in a liquid state at normal temperatures, has mobility; Ink is filled in via hole, will be subject to from the consent pressure that hole wall transmits excessively, and consent pressure can changes along with the variation in via hole aperture.When consent pressure is excessive or when too small, will cause the quality problem such as bullet oil, blast hole, consent is not full.Therefore, for obtaining better quality, inventor has launched research to the selection of best circular hole size, and has obtained above-mentioned data.
Because the size of via hole corresponding to maximum circular hole is larger, its consent pressure reduces the change along with aperture greatly, and therefore, this hole, when consent, easily occurs because of too low consent pressure the phenomenon that consent is not full.For solving this technical barrier, inventor obtains smaller by the aperture design of the maximum circular hole on aluminium flake; When using scraper frizing, this less circular hole just can limit the amount that ink flows out via hole, as far as possible more ink is retained in via hole, improves consent pressure, thereby avoids the not full problem of consent.
The situation of minimum circular hole is just in time contrary, and corresponding via size is less, and consent pressure is larger, easily occurs the quality problem such as blast hole.For fear of this class quality problem, inventor suitably expands the aperture of the minimum circular hole on aluminium flake, during scraper frizing, can there is more ink to flow out in larger circular hole, enter and more ink may be discharged to via hole, reduce consent pressure, thereby avoid the problem of blast hole.
Because the size difference of via hole in reality may be very large, so also just mean differing greatly of consent pressure, must do further accurately restriction to circular hole size.In order to obtain the most appropriate circular hole size, using maximum via hole and minimum via hole difference as standard, be divided into three levels: be less than 0.2mm, between 0.2mm and 0.4mm, be greater than 0.4mm; In different levels, the offset of circular hole is different, and design parameter as mentioned above.
If middle circular hole aperture is Dx, is dx with corresponding via hole aperture, described Dx, dx meet following corresponding relation:
1) when dx-d1 < dn-dx:
Dx=D1+0.05 * [(dx-d1)/0.1];
2) when dx-d1=dn-dx:
Dx=(D1+Dn)/2;
3) when dx-d1 > dn-dx:
Dx=Dn-0.05 * [(dx-d1)/0.1].
With maximum, minimum circular hole is similar, the size in middle circular hole aperture also needs further adjustment, just can avoid the quality defects such as blast hole, consent be not full.Due to usually more than one of middle circular hole, it specifically needs great size in practical operation, is a more scabrous knotty problem.Inventor passes through the knowledge of oneself, and in conjunction with repeated multiple times experiment, has finally obtained desirable compensation relationship.
Use the mean value of maximum via hole and minimum via hole as the foundation of judgement, be divided into equally three levels: median pore radius is less than mean value, equals mean value, is greater than mean value.In different levels, the offset of circular hole is different, and design parameter as mentioned above.
The length of described aluminium flake main body, width are identical with length, the width of circuit board under test, and the thickness of described aluminium flake main body is 6mil.
This multiple aperture consent aluminium flake is the oil baffle covering on circuit board, therefore its size must be consistent with circuit board, in addition aluminium plate thickness is 6mil, has not only guaranteed that aluminium sheet is lighter, but also have more satisfactory intensity, after boring, still can keep original template.In addition, aluminium flake, when realizing via hole aperture compensation, can also guarantee not pollute ink, avoids the risk of oil impregnate.
Be more than wherein specific implementation of the present utility model, it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model the scope of the claims.It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these apparent replacement forms all belong to protection range of the present utility model.
Claims (4)
1. a multiple aperture consent aluminium flake, comprises aluminium flake main body, is arranged on the circular hole in aluminium flake main body, it is characterized in that: described circular hole is corresponding one by one with the position of via hole for the treatment of consent on circuit board, and the aperture of described circular hole is corresponding with via hole aperture.
2. multiple aperture consent aluminium flake according to claim 1, is characterized in that: described circular hole comprises maximum circular hole, minimum circular hole and remaining middle circular hole; The position of described maximum circular hole is corresponding with the via hole of size and size maximum, and the position of described minimum circular hole is corresponding with the via hole of size and size minimum; If the aperture that maximum circular hole aperture is Dn, minimum circular hole is D1, maximum via hole aperture is that dn, minimum via hole aperture are d1, described Dn, D1, dn, d1 meet following corresponding relation:
1) when dn-d1 < 0.2mm:
D1=d1+0.1mm;
Dn=dn+0.05mm；
2) when dn-d1 >=0.2mm:
D1=(d1+dn)/2;
Dn=dn/2；
3) when dn-d1 >=0.4mm:
D1=(d1+dn)/2;
Dn=(dn-d1)/2。
3. multiple aperture consent aluminium flake according to claim 2, is characterized in that: in the middle of establishing, circular hole aperture is Dx, is dx with corresponding via hole aperture, and described Dx, dx meet following corresponding relation:
1) when dx-d1 < dn-dx:
Dx=D1+0.05 * [(dx-d1)/0.1];
2) when dx-d1=dn-dx:
Dx=(D1+Dn)/2;
3) when dx-d1 > dn-dx:
Dx=Dn-0.05 * [(dx-d1)/0.1].
4. multiple aperture consent aluminium flake according to claim 3, is characterized in that: the length of described aluminium flake main body, width are identical with length, the width of circuit board under test, and the thickness of described aluminium flake main body is 4-10mil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320523897.7U CN203467057U (en) | 2013-08-27 | 2013-08-27 | Multiple-aperture hole-plugging aluminum sheet |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320523897.7U CN203467057U (en) | 2013-08-27 | 2013-08-27 | Multiple-aperture hole-plugging aluminum sheet |
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| Publication Number | Publication Date |
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| CN203467057U true CN203467057U (en) | 2014-03-05 |
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| CN201320523897.7U Expired - Fee Related CN203467057U (en) | 2013-08-27 | 2013-08-27 | Multiple-aperture hole-plugging aluminum sheet |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105228353A (en) * | 2015-10-12 | 2016-01-06 | 深圳崇达多层线路板有限公司 | A kind of printed circuit board solder mask jack process |
| CN105764240A (en) * | 2016-01-12 | 2016-07-13 | 大连崇达电路有限公司 | Printed circuit board with double-side windowing and oil filling in holes in resistance welding ring disc and production process |
| CN106550550A (en) * | 2016-10-26 | 2017-03-29 | 广东骏亚电子科技股份有限公司 | A kind of anti-welding one side windowing via manufacture method |
| CN109195339A (en) * | 2018-10-26 | 2019-01-11 | 南通深南电路有限公司 | The filling holes with resin device and method of pcb board |
| CN113079648A (en) * | 2021-02-26 | 2021-07-06 | 沪士电子股份有限公司 | Hole plugging method for PCB aluminum separating cover |
-
2013
- 2013-08-27 CN CN201320523897.7U patent/CN203467057U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105228353A (en) * | 2015-10-12 | 2016-01-06 | 深圳崇达多层线路板有限公司 | A kind of printed circuit board solder mask jack process |
| CN105228353B (en) * | 2015-10-12 | 2018-06-15 | 深圳崇达多层线路板有限公司 | A kind of printed circuit board solder mask jack process |
| CN105764240A (en) * | 2016-01-12 | 2016-07-13 | 大连崇达电路有限公司 | Printed circuit board with double-side windowing and oil filling in holes in resistance welding ring disc and production process |
| CN106550550A (en) * | 2016-10-26 | 2017-03-29 | 广东骏亚电子科技股份有限公司 | A kind of anti-welding one side windowing via manufacture method |
| CN109195339A (en) * | 2018-10-26 | 2019-01-11 | 南通深南电路有限公司 | The filling holes with resin device and method of pcb board |
| CN113079648A (en) * | 2021-02-26 | 2021-07-06 | 沪士电子股份有限公司 | Hole plugging method for PCB aluminum separating cover |
| CN113079648B (en) * | 2021-02-26 | 2022-07-15 | 沪士电子股份有限公司 | Hole plugging method for PCB aluminum separating cover |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140305 Termination date: 20210827 |
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| CF01 | Termination of patent right due to non-payment of annual fee |