CN204968224U - Circuit board - Google Patents
Circuit board Download PDFInfo
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- CN204968224U CN204968224U CN201520753541.1U CN201520753541U CN204968224U CN 204968224 U CN204968224 U CN 204968224U CN 201520753541 U CN201520753541 U CN 201520753541U CN 204968224 U CN204968224 U CN 204968224U
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Abstract
The utility model discloses a circuit board is formed with the plug -in components hole on it, the downthehole wall of these plug -in components plates and is equipped with the conducting medium, the plug -in components hole including the first hole of the plug -in components pin that is used for planting and with the second hole of first hole intercommunication, wherein, the second hole with the aperture of first jogged joint department is less than the aperture in first hole. The utility model provides a circuit board includes the plant first hole of plug -in components pin and the second hole that communicates with first hole of being used for that forms on circuit board, so, the plug -in components pin can first downthehole and do not take place the skew of position by the restriction, and the second hole can replace the function of a plurality of via holes among the prior art, with current transmission to corresponding each plane of inlayer of circuit board, and transmission that can not influencing current, simultaneously, the first downthehole welding effect that produces gaseous release route, promotion wave -soldering in the time of can regarding as the wave -soldering with the second hole of first hole intercommunication.
Description
Technical field
The utility model belongs to circuit board processing and manufacturing technical field, particularly relates to a kind of circuit board improving through-flow effect.
Background technology
Printed circuit board (PCB) (PCB) is important electronic unit, is the supporter of electronic devices and components, is the supplier of electronic devices and components electrical connection.Ginseng Fig. 1, during existing printed circuit board (PCB) 200 designs, for power module plug-in unit, plug-in unit secondary power supply module pin through-flow, usual way the copper sheet around insert hole 21 is beaten multiple via hole 22, by these via holes 22 by current delivery to each plane of the corresponding internal layer of circuit board.
But this design can bring following defect:
1) the multiple via holes 22 being arranged in circuit board can interrupt the plane layer of circuit board internal layer, causing electric current not to be an integral planar transmission when transmitting, there is a lot of empty area of isolation, and then affect the conducting effect of electric current in its transmission path.
2) ginseng Fig. 2 is coordinated, insert hole 21 can be closed after power module pin 31 inserts circuit board with the shoulder 32 of power module pin by circuit board 200, cause the gas produced in insert hole 21 when follow-up wave-soldering there is no release way, affect the crest through welding tin of plug-in unit pin.
Utility model content
In view of this, the utility model provide a kind of can improve the through-flow effect of circuit board internal layer, the crest through welding tin effect ensureing plug-in unit pin and insert hole welding the circuit board of saturating tin height to solve the problems of the technologies described above.
In order to achieve the above object, the technical scheme that the utility model adopts is:
A kind of circuit board, it is formed with insert hole, described insert hole inwall plating is provided with conducting medium, described insert hole comprises for the first hole of plug-in unit pin of planting and the second hole of being communicated with described first hole, wherein, the aperture of described second hole and described first junction, hole is less than the aperture in described first hole.
The further improvement of the utility model circuit board is, the quantity in described second hole is at least set to two.
The further improvement of the utility model circuit board is, the quantity in described second hole is set to two, and described two the second hole symmetries are connected to the both sides in described first hole.
The further improvement of the utility model circuit board is, described second hole has the aperture expanded gradually on the direction away from described first hole.
The further improvement of the utility model circuit board is, described second hole is long trough.
The further improvement of the utility model circuit board is, described first hole is rounded.
The further improvement of the utility model circuit board is, described insert hole is cross.
The further improvement of the utility model circuit board is, described first hole and the second hole through circuit board respectively.
The further improvement of the utility model circuit board is, described circuit board does not comprise for through-flow via hole.
Compared with prior art, the circuit board that the application provides comprises the first hole for plug-in unit pin of planting formed on circuit boards and the second hole be communicated with the first hole, so, plug-in unit pin can be limited in the skew of not occurrence positions in the first hole, and the second hole can substitute the function of multiple via hole of the prior art, by current delivery to each plane of the corresponding internal layer of circuit board, the transmission of electric current can not be affected; Meanwhile, the second hole be communicated with the first hole as the release way producing gas in the first hole during wave-soldering, can promote the welding effect of wave-soldering.
Accompanying drawing explanation
Fig. 1 is the structural representation of circuit board in prior art;
Fig. 2 is the structural representation that in prior art, power module pin coordinates with insert hole on circuit board;
Fig. 3 is the structural representation of the utility model circuit board one execution mode;
Fig. 4 is the structural representation of the utility model circuit board embodiment one (in Fig. 3 dotted line frame part);
Fig. 5 is the structural representation of the utility model circuit board embodiment two;
Fig. 6 is the structural representation of the utility model circuit board embodiment three;
Fig. 7 is the structural representation of the utility model circuit board embodiment four.
Embodiment
Below with reference to embodiment shown in the drawings, the utility model is described in detail.But these execution modes do not limit the utility model, the structure that those of ordinary skill in the art makes according to these execution modes, method or conversion functionally are all included in protection range of the present utility model.
Should be understood that, although first, second grade of term can be used to describe various element or structure in this article, these are described the restriction that object should not be subject to these terms.These terms are only for being distinguished from each other out these description objects.Such as, the first hole can be called as the second hole, and the second hole also can be called as the first hole similarly, and this does not deviate from the protection range of the application.
As shown in Figure 3, Fig. 3 is the structural representation of the utility model circuit board one execution mode.Describe an embodiment of the application's circuit board 100.In the present embodiment, circuit board 100 is formed with insert hole 11, this insert hole 11 comprises the first hole 111 and the second hole 112.
First hole 111 and the second hole 112 through circuit board 100 and communicating with each other respectively, in present embodiment, the aperture d1 of the second hole 112 and the first junction, hole 111 is less than the aperture d2 in the first hole 111.The plug-in unit pin of the first hole 111 for planting external, in the second hole 112 and the first junction, hole 111, the aperture d1 in the second hole 112 arranges the aperture d2 being less than the first hole 111, can ensure that plug-in unit pin is plant behind the first hole 111 can not the skew of occurrence positions, promotes the fixing effect of plug-in unit.Here; should be understood that; the aperture that said in the application " the aperture d1 of the second hole 112 and the first junction, hole 111 is less than the aperture d2 in the first hole 111 " is equivalent in fact define the first hole 111 and the second junction, hole 112 is the leg diameter being less than in the first hole 111 plug-in unit planted; usually the plug-in unit pin can planted as required because of the diameter in the first hole 111 carries out matched design, can not there is larger diameter difference between the two.
The inwall plating of insert hole 11 is provided with conducting medium, also namely the inwall in the first hole 111 and the second hole 112 all plates and is provided with conducting medium (not shown), conducting medium may be used for the conduction of electric current on the one hand, can provide attachment surface on the other hand for solder during welding.In one embodiment, conducting medium can be such as copper.
Multiple via holes 12 is replaced by arranging of the second hole 112, the plane layer of circuit board 100 internal layer can be avoided to there is too much area of isolation, ensure the laser propagation effect of electric current, and the wave-soldering process that too much via hole can be avoided to cause heat radiation is too fast, thus affect the saturating tin height of insert hole 11 welding; And for such as power module, when wave-soldering, the gas produced in the first hole 111 can be discharged by the second hole 112 be communicated with, avoid the crest through welding tin affecting plug-in unit pin.
In concrete design ap-plication, quantity and the shape in the second hole 112 can be set according to actual needs, thus make circuit board 100 insert hole 11 of the application have multiple irregularly-shaped hole form.Below some specific embodiments are exemplarily provided:
Embodiment one
As shown in Figure 4, in insert hole 11, the quantity in the second hole 112 is set to two, and two the second hole 112 symmetries are connected to the both sides in the first hole 111, and the second hole 112 is in long trough.
Embodiment two
As shown in Figure 5, in insert hole 11a, the quantity of the second hole 112a is set to one, and is connected to the side of the first hole 111a, and the second hole 112a is long trough.
Embodiment three
As shown in Figure 6, insert hole 11b entirety is in cross.Wherein, the quantity of the second hole 112b is set to four, and is connected to all sides of the first hole 111b in uniform way, and the second hole 112b is long trough.
Embodiment four
As shown in Figure 7, in insert hole 11c, the quantity of the second hole 112c is set to two, and two symmetrical both sides being connected to the first hole 111c of the second hole 112c, the second hole 112c has the aperture expanded gradually on the direction away from the first hole 111c.Setting like this is to make plug-in unit pin when being welded into the first hole 111c, and in the first hole 111c, the leakage path of air as much as possible greatly (i.e. the shape of the second hole 112c of foregoing description), to accelerate AB Air Bleed, can be conducive to the welding of plug-in unit pin.
Should be understood that, above-described embodiment is only that some providing according to the execution mode of the application are specifically demonstrated, but not the restriction of concrete shape to the application's insert hole.Such as, in some unshowned embodiments, insert hole can also be direction dish type.
Continue ginseng Fig. 3 and Fig. 4, in insert hole 11, the perforated area in the second hole 112 is determined by the through-flow demand of plug-in unit.For the second hole 112 for long trough, length and the width of elongated slot 112 can be calculated according to the through-flow demand of plug-in unit, and then carry out perforate design; Or, can amass according to the quantity of via hole in original design and/or hole copper face and convert.
As shown in Figure 3, an embodiment of the application's circuit board 100 is introduced.In the present embodiment, this circuit board 100 can comprise illustrate respectively in as above each embodiment insert hole 11,11a, 11b, 11c (in Fig. 3, only illustrating insert hole 11).Further, owing to not relating to the improvement to circuit board other parts, therefore here the execution mode of circuit board is not repeated.
In certain embodiments, can by arranging the insert hole 11 shown in the application, 11a, 11b, 11c to reduce the quantity it needing the via hole 12 offered on circuit board 100.And in certain embodiments, circuit board 100 can offer via hole 12, and the second hole in insert hole is utilized to substitute the repertoire of via hole 12.
The utility model is by above-mentioned execution mode, there is following beneficial effect: by the first hole for plug-in unit pin of planting formed on circuit boards and the second hole be communicated with the first hole, the aperture of this first hole and the second junction, hole is less than the aperture in the first hole, so, plug-in unit pin can be limited in the skew of not occurrence positions in the first hole, and the second hole can substitute the function of multiple via hole of the prior art, by current delivery to each plane of the corresponding internal layer of circuit board, the transmission of electric current can not be affected; Meanwhile, the second hole be communicated with the first hole as the release way producing gas in the first hole during wave-soldering, can promote the welding effect of wave-soldering, and, relative to the multiple via holes arranged on circuit boards, heat dissipation channel can be reduced in the second hole, improves the saturating tin height of insert hole during wave-soldering.
Those skilled in the art, at consideration specification and after putting into practice utility model disclosed herein, will easily expect other embodiment of the present utility model.The application is intended to contain any modification of the present utility model, purposes or adaptations, and these modification, purposes or adaptations are followed general principle of the present utility model and comprised the undocumented common practise in the art of the utility model or conventional techniques means.Specification and embodiment are only regarded as exemplary, and true scope of the present utility model and spirit are pointed out by the claim of the application.
Should be understood that, the utility model is not limited to precision architecture described above and illustrated in the accompanying drawings, and can carry out various amendment and change not departing from its scope.Scope of the present utility model is only limited by appended claim.
Claims (9)
1. a circuit board, it is formed with insert hole, described insert hole inwall plating is provided with conducting medium, it is characterized in that, described insert hole comprises for the first hole of plug-in unit pin of planting and the second hole of being communicated with described first hole, wherein, the aperture of described second hole and described first junction, hole is less than the aperture in described first hole.
2. circuit board according to claim 1, is characterized in that, the quantity in described second hole is at least set to two.
3. circuit board according to claim 2, is characterized in that, the quantity in described second hole is set to two, and described two the second hole symmetries are connected to the both sides in described first hole.
4. circuit board according to claim 3, is characterized in that, described second hole has the aperture expanded gradually on the direction away from described first hole.
5. circuit board according to claim 1, is characterized in that, described second hole is long trough.
6. circuit board according to claim 1, is characterized in that, described first hole is rounded.
7. circuit board according to claim 1, is characterized in that, described insert hole is cross.
8. circuit board according to claim 1, is characterized in that, described first hole and the second hole through circuit board respectively.
9. circuit board according to claim 1, is characterized in that, described circuit board does not comprise for through-flow via hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520753541.1U CN204968224U (en) | 2015-09-25 | 2015-09-25 | Circuit board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520753541.1U CN204968224U (en) | 2015-09-25 | 2015-09-25 | Circuit board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204968224U true CN204968224U (en) | 2016-01-13 |
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ID=55063256
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520753541.1U Active CN204968224U (en) | 2015-09-25 | 2015-09-25 | Circuit board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204968224U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108934125A (en) * | 2018-09-11 | 2018-12-04 | 广东兑丰电子科技有限公司 | A kind of cable-through hole technique of high efficiency, low cost |
| CN114245610A (en) * | 2022-01-27 | 2022-03-25 | 苏州浪潮智能科技有限公司 | Circuit board pin wave-soldering positioning jig and circuit board pin wave-soldering method |
-
2015
- 2015-09-25 CN CN201520753541.1U patent/CN204968224U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108934125A (en) * | 2018-09-11 | 2018-12-04 | 广东兑丰电子科技有限公司 | A kind of cable-through hole technique of high efficiency, low cost |
| CN108934125B (en) * | 2018-09-11 | 2020-10-02 | 佛山市汉丰科技有限公司 | High-efficiency low-cost wire passing hole process |
| CN114245610A (en) * | 2022-01-27 | 2022-03-25 | 苏州浪潮智能科技有限公司 | Circuit board pin wave-soldering positioning jig and circuit board pin wave-soldering method |
| CN114245610B (en) * | 2022-01-27 | 2023-09-01 | 苏州浪潮智能科技有限公司 | Wave soldering positioning jig and wave soldering method for pins of circuit board |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 310052 Binjiang District Changhe Road, Zhejiang, China, No. 466, No. Patentee after: Xinhua three Technology Co., Ltd. Address before: 310052 Binjiang District Changhe Road, Zhejiang, China, No. 466, No. Patentee before: Huasan Communication Technology Co., Ltd. |