CN204929378U - Circuit board of compound counter sink structure of multi -angle - Google Patents
Circuit board of compound counter sink structure of multi -angle Download PDFInfo
- Publication number
- CN204929378U CN204929378U CN201520614360.0U CN201520614360U CN204929378U CN 204929378 U CN204929378 U CN 204929378U CN 201520614360 U CN201520614360 U CN 201520614360U CN 204929378 U CN204929378 U CN 204929378U
- Authority
- CN
- China
- Prior art keywords
- counter sink
- screw
- wiring board
- circuit board
- angle
- 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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- Mounting Of Printed Circuit Boards And The Like (AREA)
Abstract
The embodiment of the utility model discloses a circuit board of compound counter sink structure of multi -angle, including the circuit board main part, the through -hole that a plurality of runs through the circuit board main part is seted up in the logicalnot circuit region in the circuit board main part, the through -hole by the screw that lies in bottom and perpendicular circuit board main part, lie in the screw top and with the first counter sink of screw intercommunication, lie in first counter sink top and constitute with the second counter sink of first counter sink intercommunication, wherein, screw, first counter sink and second counter sink are coaxial. The utility model discloses a set up the counter sink on the logicalnot circuit region in the circuit board main part, and the counter sink is formed by stacking in a plurality of holes with the different angles in axle center in proper order, when the screw passes the counter sink of this kind of structure, can improve the inseparable degree of screw and line base plate contact greatly to improve the fastening nature of PCBA finished product equipment.
Description
technical field:
The utility model relates to wiring board, and what be specifically related to is the wiring board of the compound counter sink structure of a kind of multi-angle.
background technology:
The PCBA that current large scale electronic equipment adopts, after ubiquity size is large, heavy weight and the thick feature PCBA finished product of substrate fit into equipment enclosure, usual needs bear stronger own wt, and equipment also can produce impulsive force in carrying and installation process because of collision, these situations all propose high requirement to the fastness of PCBA finished product assembling.
And the PCBA of existing large scale electronic equipment generally designs counter sink on printed circuit substrate, in finished product assembling process, use special screw that PCBA is connected to equipment enclosure inside.This counter sink structure being mounted with mode and adopting, it is the counter sink structure of single angle, after fastened by screw, screw terminal just in time submerges in the position of counter sink, screw terminal can be there is and contact with printed circuit substrate not tight in screw in fastener cycle, and cause fastening effect not good, the problem that impact resistance is low, thus cause electronic equipment when the external impacts such as being collided, easily occur that printed circuit substrate loosens, thus have influence on the fail safe of electronic equipment.
summary of the invention:
For this reason, the purpose of this utility model is the wiring board providing the compound counter sink structure of a kind of multi-angle, and during to solve the assembling of traditional PCB A finished product, fastening effect is not good, the problem that impact resistance is low.
For achieving the above object, the utility model mainly adopts following technical scheme:
The wiring board of the compound counter sink structure of a kind of multi-angle, comprise wiring board main body, in described wiring board main body, logicalnot circuit region offers several through holes running through wiring board main body, described through hole by be positioned at bottom and the screw of horizontal path plate main body, be positioned at be communicated with above screw and with screw the first counter sink, be positioned at the second counter sink be communicated with above the first counter sink and with the first counter sink and form, wherein, described screw, the first counter sink and the second counter sink are coaxial.
Preferably, the dual-side angle of described first counter sink longitudinal cross-section is 30 ° ~ 60 °.
Preferably, the dual-side angle of described second counter sink longitudinal cross-section is 90 ° ~ 120 °.
Preferably, described first counter sink, the second counter sink are round taper hole.
The utility model is by logicalnot circuit region arranging counter sink in wiring board main body, and described counter sink is formed by stacking successively by the hole of multiple concentric different angles, when screw passes the counter sink of this structure, greatly can improve the tightness degree that screw contacts with circuit base plate, thus improve the tightness of PCBA finished product assembling.
accompanying drawing illustrates:
Fig. 1 is the cutaway view of the compound counter sink position of the utility model wiring board multi-angle;
Fig. 2 is the vertical view of the compound counter sink position of the utility model wiring board multi-angle.
Identifier declaration in figure: wiring board main body 100, screw 101, first counter sink 102, second counter sink 103.
embodiment:
For setting forth thought of the present utility model and object, below in conjunction with the drawings and specific embodiments, the utility model is described further.
As shown in Figure 1 and Figure 2, Fig. 1 is the cutaway view of the compound counter sink position of the utility model wiring board multi-angle; Fig. 2 is the vertical view of the compound counter sink position of the utility model wiring board multi-angle.Present embodiments provide the wiring board of the compound counter sink structure of a kind of multi-angle, when it is mainly used in solving the assembling of traditional PCB A finished product, fastening effect is not good, the problem that impact resistance is low.
Wherein, wiring board described in the present embodiment includes wiring board main body 100, and this wiring board main body 100 can be FR-4 wiring board, aluminum-substrate printed circuit plate, copper base or ceramic circuit-board.
In wiring board main body 100, logicalnot circuit region is provided with multiple through hole running through wiring board main body 100, is installed with screw in this through hole.
Through hole by be positioned at bottom and the screw 101 of horizontal path plate main body, be positioned at be communicated with above screw 101 and with screw 101 the first counter sink 102, be positioned at the second counter sink 103 be communicated with above the first counter sink 102 and with the first counter sink 102 and form.
First counter sink 102, second counter sink 103 is conical hole, and the dual-side angle of the longitudinal cross-section of the first counter sink is 30 ° ~ 60 °; And the dual-side angle of the second counter sink longitudinal cross-section is 90 ° ~ 120 °.
Wiring board main body 100 upper surface is exposed in the upper end of the second counter sink 103, and its lower end overlaps with the upper surface of the first counter sink 102, and the aperture, upper end of the second counter sink 103 is greater than aperture, lower end.
The aperture, upper end of the first counter sink 102 is also greater than aperture, lower end, and lower surface overlaps with screw 101 upper surface, and screw 101 is columniform hole, and the described coaxial heart of screw 101, first counter sink 102, second counter sink 103.
For the wiring board described in the present embodiment, its occupation mode is as follows: first will complete the special screw of PCBA of the rear composition of SMT attachment through the compound counter sink on main body wiring board, link together with rack, wherein the design size of screw, angle, shape are consistent with compound counter sink, and two different angles bodies after fastened by screw on screw terminal just in time embed in the position of first, second counter sink.And adopt the structure described in this enforcement, counter sink mechanism in prior art can be overcome single, with screw in conjunction with the not good defect of fastening effect, the fastening effect of effective raising PCBA finished product assembling, and impact resistance 15 ~ 30KG can be improved, ensure that the fail safe of electronic equipment, this product is particularly suitable for the electronic products such as the network energy, UPS, communication apparatus, industrial equipment.
More than that the wiring board of the compound counter sink structure of a kind of multi-angle provided by the utility model is described in detail, apply specific case herein to set forth structural principle of the present utility model and execution mode, above embodiment just understands method of the present utility model and core concept thereof for helping; Meanwhile, for one of ordinary skill in the art, according to thought of the present utility model, all will change in specific embodiments and applications, in sum, this description should not be construed as restriction of the present utility model.
Claims (4)
1. the wiring board of the compound counter sink structure of multi-angle, it is characterized in that, comprise wiring board main body (100), the upper logicalnot circuit region of described wiring board main body (100) offers several through holes running through wiring board main body (100), described through hole is by being positioned at bottom and the screw (101) of horizontal path plate main body (100), be positioned at screw (101) top and the first counter sink (102) be communicated with screw (101), be positioned at the first counter sink (102) top and the second counter sink (103) be communicated with the first counter sink (102) form, wherein, described screw (101), first counter sink (102) and the second counter sink (103) coaxial.
2. the wiring board of the compound counter sink structure of multi-angle as claimed in claim 1, it is characterized in that, the dual-side angle of described first counter sink (102) longitudinal cross-section is 30 ° ~ 60 °.
3. the wiring board of the compound counter sink structure of multi-angle as claimed in claim 2, it is characterized in that, the dual-side angle of described second counter sink (103) longitudinal cross-section is 90 ° ~ 120 °.
4. the wiring board of the compound counter sink structure of multi-angle as claimed in claim 3, it is characterized in that, described first counter sink (102), the second counter sink (103) are round taper hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520614360.0U CN204929378U (en) | 2015-08-14 | 2015-08-14 | Circuit board of compound counter sink structure of multi -angle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520614360.0U CN204929378U (en) | 2015-08-14 | 2015-08-14 | Circuit board of compound counter sink structure of multi -angle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204929378U true CN204929378U (en) | 2015-12-30 |
Family
ID=54978470
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520614360.0U Expired - Fee Related CN204929378U (en) | 2015-08-14 | 2015-08-14 | Circuit board of compound counter sink structure of multi -angle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204929378U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107613633A (en) * | 2017-09-21 | 2018-01-19 | 中新国际电子有限公司 | A kind of pcb board |
| CN114449763A (en) * | 2021-12-31 | 2022-05-06 | 广东兴达鸿业电子有限公司 | Production method for non-metallization of bottom of metallized countersunk hole |
-
2015
- 2015-08-14 CN CN201520614360.0U patent/CN204929378U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107613633A (en) * | 2017-09-21 | 2018-01-19 | 中新国际电子有限公司 | A kind of pcb board |
| CN114449763A (en) * | 2021-12-31 | 2022-05-06 | 广东兴达鸿业电子有限公司 | Production method for non-metallization of bottom of metallized countersunk hole |
| CN114449763B (en) * | 2021-12-31 | 2023-12-29 | 广东兴达鸿业电子有限公司 | Production method for non-metallization of bottom of metallized counter bore |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151230 Termination date: 20200814 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |