CN202353971U - Prepositioned USB (Universal Serial bus) shell available for electromagnetic shielding - Google Patents
Prepositioned USB (Universal Serial bus) shell available for electromagnetic shielding Download PDFInfo
- Publication number
- CN202353971U CN202353971U CN2011205151048U CN201120515104U CN202353971U CN 202353971 U CN202353971 U CN 202353971U CN 2011205151048 U CN2011205151048 U CN 2011205151048U CN 201120515104 U CN201120515104 U CN 201120515104U CN 202353971 U CN202353971 U CN 202353971U
- Authority
- CN
- China
- Prior art keywords
- electromagnetic shielding
- prepositioned
- usb
- shell
- serial bus
- 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
- 239000003973 paint Substances 0.000 claims description 5
- 239000011248 coating agent Substances 0.000 description 5
- 238000000576 coating method Methods 0.000 description 5
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000005670 electromagnetic radiation Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
Images
Abstract
The utility model provides a prepositioned USB (Universal Serial bus) shell available for electromagnetic shielding. The prepositioned USB shell structurally comprises a plastic shell of the prepositioned USB, wherein the plastic shell is provided with a conducting layer. Compared with the prior art, the prepositioned USB shell available for electromagnetic shielding has the characteristics of being reasonable in design, simple in structure, ingenious in conception, convenient in usage and the like; meanwhile, the prepositioned USB shell available for electromagnetic shielding has strong conducting property, can effectively conduct electromagnetic shielding, and is economical and attractive in appearance.
Description
Technical field
The utility model relates to a kind of preposition USB shell, but a kind of specifically preposition USB shell of simple in structure, electromagnetic shielding easy to use.
Background technology
As everyone knows; Carrying out communication with external equipment for ease is connected; All be provided with various interface on the existing computer, especially along with the fast development of science and technology, preposition USB uses frequent; Particularly in server product, wherein its electromagnetic radiation is the key that the whole server electromagnetic compatibility test of influence passes through.
Summary of the invention
The technical assignment of the utility model is the deficiency that solves prior art, but a kind of preposition USB shell of electromagnetic shielding simple in structure is provided.
The technical scheme of the utility model realizes by following mode, but the preposition USB shell of this a kind of electromagnetic shielding, and its structure comprises the plastic casing of preposition USB, and a conductive layer is set on plastic casing.
Said conductive layer is meant conductive paint.
Said conductive layer is arranged on the medial surface of plastic casing.
Said conductive layer is arranged on the medial surface and lateral surface of plastic casing.
The utility model beneficial effect is:
Characteristics such as that but the preposition USB shell of a kind of electromagnetic shielding of the utility model has is simple in structure, easy to use, be skillfully constructed, this shell has lower coating surface resistance, good electromagnet shield effect; The continuous performance of good conduction, good ground connection usefulness, after the conductive paint spraying, pcb board and USB shell, casing have reached good building, and make it possess continuous performance of good conduction and good ground connection usefulness; Good coating security performance, the coating of employing has stronger adhesive force and resistance to marring, after repeated temperature, humidity loop test, does not come off, and the electrical characteristics of coating do not change, and have good anti-flammability.
Description of drawings
Accompanying drawing 1 is the structural representation of the utility model.
Accompanying drawing 2 is the utility model partial sectional views.
Mark in the accompanying drawing is represented respectively:
1, conductive layer, 2, plastic casing.
Embodiment
But the preposition USB shell of a kind of electromagnetic shielding of the utility model is done following the detailed description below in conjunction with accompanying drawing.
Shown in accompanying drawing 1, but the preposition USB shell of this a kind of electromagnetic shielding, and its structure comprises the plastic casing 2 of preposition USB, and a conductive layer 1 is set on plastic casing 2.
Said conductive layer 1 is meant conductive paint.
Shown in accompanying drawing 2, said conductive layer 1 is arranged on the medial surface and lateral surface of plastic casing 2.
Embodiment
Because electromagnet shield effect A (dB)=absorption loss A (dB)+reflection loss R (dB)+repeatedly reflection factor M (dB).Thereby when high frequency, the shield effectiveness and the solid metal casing of thin conductive layer 1 are very nearly the same, because at this moment, absorption loss can be ignored, and its topmost shielding mechanism is the electric field reflection loss, and conductive layer 1 resistance is low more, and shield effectiveness is good more.Adopt nickel, copper material conduction to spray paint, thickness of coating 12um records about 2 Europe of sheet resistance, has reached reasonable shield effectiveness.
Claims (4)
1. but the preposition USB shell of an electromagnetic shielding is characterized in that its structure comprises the plastic casing of preposition USB, is provided with a conductive layer on plastic casing.
2. but the preposition USB shell of a kind of electromagnetic shielding according to claim 1 is characterized in that said conductive layer is meant conductive paint.
3. but the preposition USB shell of a kind of electromagnetic shielding according to claim 2 is characterized in that said conductive layer is arranged on the medial surface of plastic casing.
4. but the preposition USB shell of a kind of electromagnetic shielding according to claim 2 is characterized in that said conductive layer is arranged on the medial surface and lateral surface of plastic casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205151048U CN202353971U (en) | 2011-12-12 | 2011-12-12 | Prepositioned USB (Universal Serial bus) shell available for electromagnetic shielding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205151048U CN202353971U (en) | 2011-12-12 | 2011-12-12 | Prepositioned USB (Universal Serial bus) shell available for electromagnetic shielding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202353971U true CN202353971U (en) | 2012-07-25 |
Family
ID=46542924
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205151048U Expired - Fee Related CN202353971U (en) | 2011-12-12 | 2011-12-12 | Prepositioned USB (Universal Serial bus) shell available for electromagnetic shielding |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202353971U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107949264A (en) * | 2017-12-20 | 2018-04-20 | 郑州云海信息技术有限公司 | A kind of reinforcement PCB and the system and method for plastic spraying structure overlap joint electric conductivity |
| CN108966558A (en) * | 2018-08-23 | 2018-12-07 | 郑州云海信息技术有限公司 | A kind of Low emissivity mounting structure of the preposition cable of server |
| CN110854575A (en) * | 2018-07-25 | 2020-02-28 | 鸿富锦精密工业(武汉)有限公司 | USB interface connecting device |
-
2011
- 2011-12-12 CN CN2011205151048U patent/CN202353971U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107949264A (en) * | 2017-12-20 | 2018-04-20 | 郑州云海信息技术有限公司 | A kind of reinforcement PCB and the system and method for plastic spraying structure overlap joint electric conductivity |
| CN107949264B (en) * | 2017-12-20 | 2020-03-06 | 郑州云海信息技术有限公司 | System and method for enhancing lap joint conductivity of PCB and plastic spraying structure |
| CN110854575A (en) * | 2018-07-25 | 2020-02-28 | 鸿富锦精密工业(武汉)有限公司 | USB interface connecting device |
| CN108966558A (en) * | 2018-08-23 | 2018-12-07 | 郑州云海信息技术有限公司 | A kind of Low emissivity mounting structure of the preposition cable of server |
| CN108966558B (en) * | 2018-08-23 | 2020-09-18 | 苏州浪潮智能科技有限公司 | Low-radiation installation structure of front cable of server |
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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: 20120725 Termination date: 20141212 |
|
| EXPY | Termination of patent right or utility model |