CN202713776U - Anti-static printed board - Google Patents
Anti-static printed board Download PDFInfo
- Publication number
- CN202713776U CN202713776U CN 201220344949 CN201220344949U CN202713776U CN 202713776 U CN202713776 U CN 202713776U CN 201220344949 CN201220344949 CN 201220344949 CN 201220344949 U CN201220344949 U CN 201220344949U CN 202713776 U CN202713776 U CN 202713776U
- Authority
- CN
- China
- Prior art keywords
- printed board
- circlewise
- ground
- antistatic
- annular ground
- 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
Landscapes
- Elimination Of Static Electricity (AREA)
- Structure Of Printed Boards (AREA)
Abstract
The utility model discloses an anti-static printed board, wherein an annular ground channel is arranged on the whole edge of the printed board; a plurality of via holes A are formed in the annular ground and different layers of the annular ground are connected together through the via holes A; a plurality of decoupling capacitors connected with the annular ground is arranged at the four sides of the printed board; and mounting holes for connecting the annular ground to a housing are formed in the printed board. The structure design of the anti-static printed board provided by the utility model is capable of avoiding the formation of a large loop and reducing the ground noise on the board; and simultaneously, the annular ground is connected to the product housing through a line which is as short and thick as much or through the mounting of screws, thereby forming an electrostatic discharge path; therefore, the electrostatic electricity is quickly discharged without influence on the normal work of the product.
Description
Technical field
The utility model belongs to the printed-board technology field, relates to a kind of antistatic printed board.
Background technology
As everyone knows; printed board is exactly printed circuit board (PCB); almost appear in each electronic equipment; the major function of printed circuit board (PCB) provides the mutual electrical connection of each part of the higher authorities; as long as in some equipment, electronic component is arranged; so all electronic components also all are to be set on the printed circuit board (PCB) of different sizes; along with electronic equipment becomes increasingly complex; the part that needs is more and more; therefore circuit and the part in the printed board is also more and more integrated; yet because existing printed board existing deficiency in structural design; so that from human body; the static of environment even electronic equipment internal can not effectively be released; when the people who carries static or object proximity or touch product; build-up of electrostatic charges is released in printed board nowhere, when electric charge accumulates to when a certain amount of; cause product work unusual or broken by static, simultaneously on the plate noise larger.
The utility model content
For addressing the above problem, the utility model provides a kind of antistatic printed board, and this printed board can provide product electrostatic leakage loop, improves the antistatic grade of product.
The utility model is achieved by following technical solution.
A kind of antistatic printed board, circlewise path is put at whole edge in printed board, be provided with circlewise some via hole A, to couple together circlewise between different layers by via hole A, be placed with a plurality of decoupling capacitors with linking to each other circlewise around the described printed board, and be provided with the installing hole that to be connected to circlewise on the shell in printed board.
Described width circlewise is greater than 2mm.
Described going up circlewise placed a gap that 0.5mm is wide at least.
Evenly be placed with around the described printed board 4 with decoupling capacitor C6, the C18, C19, the C20 that link to each other circlewise.
Described installing hole place is provided with pad, evenly is provided with via hole B on pad.
Describedly be connected to product casing on the ground with short and thick line circlewise.
The described circlewise installation by screw is connected to product casing on the ground.
The beneficial effects of the utility model are:
The utility model is owing to place at least a gap that 0.5mm is wide going up circlewise, can avoid forming a large loop, because with short and thick line or the installation by screw, this is connected to product casing on the ground circlewise, form an electrostatic leakage path, effectively static is released fast, improve the antistatic grade of product, thereby do not affect the normal operation of product.Simultaneously around printed board, be placed with decoupling capacitor, thereby filter out high fdrequency component on the ground, reduce on the plate noise.
Description of drawings
Fig. 1 is the utility model structural representation;
Among the figure: 1-printed board, 2-circlewise, 3-installing hole, 4-pad, 5-gap.
Embodiment
Further describe the technical solution of the utility model below in conjunction with accompanying drawing, but that claimed scope is not limited to is described.
As shown in Figure 1, a kind of antistatic printed board 1, put circlewise 2 paths at the whole edge of printed board 1,2 be provided with some via hole A circlewise, to 2 couple together circlewise between different layers by via hole A, be placed with a plurality of and 2 decoupling capacitors that link to each other circlewise around the described printed board 1, and be provided with 2 installing holes 3 that are connected on the shell circlewise in printed board 1.
Described circlewise 2 width is greater than 2mm.
Describedly place at least a gap 5 that 0.5mm is wide on 2 circlewise.
Evenly be placed with around the described printed board 14 with 2 decoupling capacitor C6, C18, C19, C20 that link to each other circlewise.
Described installing hole 3 places are provided with pad 4, evenly are provided with via hole B on pad 4.
Short and the thick line of described circlewise 2 usefulness is connected to product casing on the ground.
Described circlewise 2 installations by screw are connected to product casing on the ground.
The utility model is by putting circlewise 2 paths at the whole edge of printed board 1, when printed board is made, not being coated with solder resist on 2 circlewise can directly weld from the teeth outwards, guarantees circlewise 2 width of all layers greater than 2mm, and will 2 couple together circlewise with via hole A every about 13mm; And place at least a gap 5 that 0.5mm is wide in certain position on 2 circlewise, can avoid like this forming a large loop.3 places are provided with pad 4 at installing hole, evenly are provided with 6 via hole B on the pad 4.And with short and thick line or the installation by screw of trying one's best, this 2 is connected to product casing on the ground circlewise, form an electrostatic leakage path, effectively static is released fast, greatly improve the antistatic grade of product, thereby do not affect the normal operation of product, can extensively promote the use of in the printed board manufacture technology field.
Claims (7)
1. an antistatic printed board (1), put circlewise (2) path at the whole edge of printed board (1), (2) are provided with some via hole A circlewise, by via hole A with between different layers circlewise (2) couple together, it is characterized in that: described printed board (1) is placed with a plurality of decoupling capacitors that link to each other with circlewise (2) all around, and is provided with in printed board (1) circlewise (2) are connected to installing hole (3) on the shell.
2. a kind of antistatic printed board according to claim 1 (1) is characterized in that: the width of described circlewise (2) is greater than 2mm.
3. a kind of antistatic printed board according to claim 1 (1) is characterized in that: place at least a gap (5) that 0.5mm is wide on described circlewise (2).
4. a kind of antistatic printed board according to claim 1 (1) is characterized in that: described printed board (1) evenly is placed with 4 decoupling capacitor C6, the C18, C19, the C20 that link to each other with circlewise (2) all around.
5. a kind of antistatic printed board according to claim 1 (1) is characterized in that: described installing hole (3) locates to be provided with pad (4), evenly is provided with via hole B on pad (4).
6. a kind of antistatic printed board according to claim 1 (1) is characterized in that: described circlewise (2) are connected to product casing on the ground with short and thick line.
7. a kind of antistatic printed board according to claim 1 (1) is characterized in that: described circlewise (2) are connected to product casing on the ground by the installation of screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220344949 CN202713776U (en) | 2012-07-16 | 2012-07-16 | Anti-static printed board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220344949 CN202713776U (en) | 2012-07-16 | 2012-07-16 | Anti-static printed board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202713776U true CN202713776U (en) | 2013-01-30 |
Family
ID=47594027
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220344949 Expired - Fee Related CN202713776U (en) | 2012-07-16 | 2012-07-16 | Anti-static printed board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202713776U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103152975A (en) * | 2013-02-28 | 2013-06-12 | 江苏惠通集团有限责任公司 | Printed circuit board of wall switch |
| CN109361250A (en) * | 2018-11-26 | 2019-02-19 | 维沃移动通信有限公司 | A kind of charge power supply |
-
2012
- 2012-07-16 CN CN 201220344949 patent/CN202713776U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103152975A (en) * | 2013-02-28 | 2013-06-12 | 江苏惠通集团有限责任公司 | Printed circuit board of wall switch |
| CN103152975B (en) * | 2013-02-28 | 2016-02-03 | 江苏惠通集团有限责任公司 | The printed circuit board (PCB) of wall surface switch |
| CN109361250A (en) * | 2018-11-26 | 2019-02-19 | 维沃移动通信有限公司 | A kind of charge power supply |
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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: 20130130 Termination date: 20140716 |
|
| EXPY | Termination of patent right or utility model |