CN102243514A - Case - Google Patents
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- Publication number
- CN102243514A CN102243514A CN2010101701994A CN201010170199A CN102243514A CN 102243514 A CN102243514 A CN 102243514A CN 2010101701994 A CN2010101701994 A CN 2010101701994A CN 201010170199 A CN201010170199 A CN 201010170199A CN 102243514 A CN102243514 A CN 102243514A
- Authority
- CN
- China
- Prior art keywords
- cabinet
- heat sink
- perforate
- screening cover
- electromagnetic radiation
- 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.)
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Abstract
The invention relates to a case which comprises a heat radiating plate, wherein the heat radiating plate is provided with a plurality of open holes; a first shielding cover and a second shielding cover which are saliently arranged along the periphery of each open hole are also arranged at two sides of the heat radiating plate; and each open hole comprises a first part, a second part and a third part positioned between the first part and the second part, wherein the first part is covered by the first shielding cover, and the second part is covered by the second shielding cover. The case disclosed by the invention can be used for effectively shielding electromagnetic radiation.
Description
Technical field
The present invention relates to a kind of cabinet.
Background technology
Computer frequency of utilization in people's life is more and more frequent.In long-term use, a series of problems that the user is brought because of being subjected to electromagnetic radiation pollution over a long time: fatiguability, decrease of memory, physiological function go down or the like and all can come one after another.
Shielding to electromagnetic radiation, generally can see through following method realize: select to have good ground connection outlet of the made cabinet of shield property, the closure that improves cabinet, design and perforate aperture reasonable in design etc., wherein the perforate on the cabinet also is used to satisfy the radiating requirements of cabinet.Please refer to Fig. 1 and Fig. 2, on existing cabinet 10, the perforate 12 on its heat sink 11 (front panel, side panel and rear panel all can) generally is designed to circle etc., and this plurality of opening 12 is used for the heat of cabinet 10 inside is distributed to the outside of cabinet 10.The aperture size of this perforate 12 also satisfies certain requirement, so makes perforate 12 can look after the radiating requirements of cabinet 10, can partly prevent irradiation of electromagnetic waves again.But its shield effectiveness to electromagnetic radiation still is not very good.
Summary of the invention
In view of above content, be necessary to provide a kind of cabinet of more effectively electromagnetic radiation shielding.
A kind of cabinet, comprise a heat sink, has plurality of opening on this heat sink, this heat sink is outstanding respectively one first screening cover and the secondary shielding lid of being provided with of the periphery in its both sides along each perforate also, each perforate comprises a first, the third part of a second portion and between first and second portion, wherein this first is hidden by first screening cover, and this second portion is hidden by the secondary shielding lid.
A kind of cabinet comprises a heat sink, has plurality of opening on this heat sink, and this heat sink is outstanding respectively one first screening cover and the secondary shielding lid of being provided with of the periphery in its both sides along each perforate also, and wherein this first and second screening cover does not hide this perforate fully.
Above-mentioned cabinet sees through at tapping two screening covers that do not hide perforate fully is set, and makes cabinet satisfying under the situation that heat radiation requires more effectively electromagnetic radiation shielding.
Description of drawings
Fig. 1 is the synoptic diagram of existing cabinet.
Fig. 2 is the partial perspective view of heat sink among Fig. 1.
Fig. 3 is the partial perspective view of heat sink of the better embodiment of cabinet of the present invention.
Fig. 4 is the side view of heat sink among Fig. 3.
Fig. 5 is the electromagnetic radiation screening rate analog result comparison diagram of existing cabinet among cabinet of the present invention and Fig. 1.
The main element symbol description
Heat sink 2,11
Perforate 3,12
First screening cover 4
Embodiment
Below in conjunction with accompanying drawing and better embodiment the present invention is described in further detail:
Please refer to Fig. 3 and Fig. 4, the better embodiment of cabinet of the present invention is a rectangular parallelepiped, and it comprises a heat sink 2, and this heat sink 2 can be any one side of cabinet, as front panel or side panel etc.Has plurality of opening 3 on this heat sink 2.This heat sink 2 in its both sides along outstanding respectively one first screening cover 4 and the secondary shielding lid 5 of being provided with of the periphery of each perforate 3.This first and second screening cover 4,5 is arch.These perforates 3 are all rounded, and comprise a first, the third part of a second portion and between first and second portion, and wherein first is hidden by first screening cover 4, and second portion is hidden by secondary shielding lid 5.That is to say that this first screening cover 4 and secondary shielding lid 5 fail to hide fully this perforate 3.So, this perforate 3 still is connected with cabinet inside, thereby the heat of cabinet inside can be distributed to the outside of cabinet, to satisfy the radiating requirements of cabinet.
See also Fig. 5, wherein have the electromagnetic radiation screening rate analog result figure of cabinet 10 in curve A 1 representative graph 1 now, the electromagnetic radiation screening rate analog result figure of cabinet of the present invention in curve A 2 representative graphs 3.As can be seen from Figure 5, the electromagnetic radiation screening rate of cabinet is better than the electromagnetic radiation screening rate of existing cabinet 10 among Fig. 1 among Fig. 3.When frequency was 4GHz, the electromagnetic radiation screening rate of cabinet had the screening rate more than the 4.5dB to improve than the electromagnetic radiation screening rate of cabinet among Fig. 1 10 among Fig. 3.
In the present embodiment, this perforate 3 be shaped as circle, the shape of this first and second screening cover 4,5 is arch.In other embodiment, the shape of this perforate 3 and first and second screening cover 4,5 can be other shape, as square etc.
Claims (8)
1. cabinet, comprise a heat sink, has plurality of opening on this heat sink, it is characterized in that: this heat sink is outstanding respectively one first screening cover and the secondary shielding lid of being provided with of the periphery in its both sides along each perforate also, each perforate comprises a first, the third part of a second portion and between first and second portion, wherein this first is hidden by first screening cover, and this second portion is hidden by the secondary shielding lid.
2. cabinet as claimed in claim 1 is characterized in that: this plurality of opening is all rounded.
3. cabinet as claimed in claim 1 is characterized in that: this first screening cover is an arch.
4. cabinet as claimed in claim 3 is characterized in that: this secondary shielding lid is arch.
5. cabinet, comprise a heat sink, have plurality of opening on this heat sink, it is characterized in that: this heat sink is each outstanding one first screening cover and secondary shielding lid of being provided with of the periphery in its both sides along each perforate also, and wherein this first and second screening cover does not hide this perforate fully.
6. cabinet as claimed in claim 5 is characterized in that: this plurality of opening is all rounded.
7. cabinet as claimed in claim 5 is characterized in that: this first screening cover is an arch.
8. cabinet as claimed in claim 7 is characterized in that: this secondary shielding lid is arch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101701994A CN102243514A (en) | 2010-05-12 | 2010-05-12 | Case |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101701994A CN102243514A (en) | 2010-05-12 | 2010-05-12 | Case |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102243514A true CN102243514A (en) | 2011-11-16 |
Family
ID=44961608
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101701994A Pending CN102243514A (en) | 2010-05-12 | 2010-05-12 | Case |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102243514A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102280145A (en) * | 2010-06-10 | 2011-12-14 | 鸿富锦精密工业（深圳）有限公司 | Computer case |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5928076A (en) * | 1997-09-25 | 1999-07-27 | Hewlett Packard Company | EMI-attenuating air ventilation panel |
| CN2414589Y (en) * | 1999-01-03 | 2001-01-10 | 左雄飞 | Electromagnetic radiation protective cover for display unit |
| US20090185346A1 (en) * | 2008-01-17 | 2009-07-23 | Yaskawa Electric America, Inc. | Electrical enclosure cooling structure assembly and method |
-
2010
- 2010-05-12 CN CN2010101701994A patent/CN102243514A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5928076A (en) * | 1997-09-25 | 1999-07-27 | Hewlett Packard Company | EMI-attenuating air ventilation panel |
| US5928076C1 (en) * | 1997-09-25 | 2001-04-24 | Hewlett Packard Co | Emi-attenuating air ventilation panel |
| CN2414589Y (en) * | 1999-01-03 | 2001-01-10 | 左雄飞 | Electromagnetic radiation protective cover for display unit |
| US20090185346A1 (en) * | 2008-01-17 | 2009-07-23 | Yaskawa Electric America, Inc. | Electrical enclosure cooling structure assembly and method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102280145A (en) * | 2010-06-10 | 2011-12-14 | 鸿富锦精密工业（深圳）有限公司 | Computer case |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20111116 |