CN102281747A - Case - Google Patents
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- Publication number
- CN102281747A CN102281747A CN2010101972036A CN201010197203A CN102281747A CN 102281747 A CN102281747 A CN 102281747A CN 2010101972036 A CN2010101972036 A CN 2010101972036A CN 201010197203 A CN201010197203 A CN 201010197203A CN 102281747 A CN102281747 A CN 102281747A
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- CN
- China
- Prior art keywords
- cabinet
- perforate
- sleeve
- panel
- screening cover
- 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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- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Abstract
The invention relates to a case which comprises a case panel. The case panel is provided with a plurality of openings. Each opening towards both sides of the case panel is respectively convexly provided with a shielding cover. The shielding covers are bushes. Each shielding cover comprises a first end connected with the case panel and a second end which is not connected with the case panel. The inner diameter of each shielding cover is decreased gradually from the first end to the second end. The case can well shield electromagnetic radiation.
Description
Technical field
The present invention relates to a kind of cabinet.
Background technology
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.See also Fig. 1 and Fig. 2, on existing cabinet 10, the perforate 12 on the one cabinet panel 11 (front panel, side panel and rear board 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 cabinet panel, has plurality of opening on this cabinet panel, each tapping convexes with a screening cover respectively to the both sides of this cabinet panel, this screening cover is the sleeve of a both ends open, it comprises second end that first end and that links to each other with cabinet panel does not link to each other with cabinet panel, and the internal diameter of this screening cover from first end to second end decrescence.
A kind of cabinet, comprise a cabinet panel, this cabinet panel comprises two metallic plates, all has plurality of opening on each metallic plate, wherein each perforate all is convexly equipped with the sleeve of a both ends open to a side of metallic plate, and each sleeve comprises second end that first end and that links to each other with this metallic plate does not link to each other with this metallic plate, and the internal diameter of this sleeve from first end to second end decrescence, the two sides that this two metallic plate is not convexly equipped with sleeve fits, and the perforate on two metallic plates one by one over against.
Above-mentioned cabinet sees through and at tapping one screening cover that is connected with cabinet inside to be set, make cabinet can be under the situation that satisfies the heat radiation requirement electromagnetic radiation shielding more effectively.
Description of drawings
Fig. 1 is the schematic diagram of existing cabinet.
Fig. 2 is the partial perspective view of cabinet panel among Fig. 1.
Fig. 3 is the partial perspective view of cabinet panel of the better embodiment of cabinet of the present invention.
Fig. 4 is the end view of cabinet panel among Fig. 3.
Fig. 5 is the electromagnetic radiation screening rate analog result comparison diagram of cabinet of the present invention and existing cabinet.
The main element symbol description
Perforate 3,12
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 cuboid, has the perforate 3 of some circles on its cabinet panel 2, and wherein each perforate 3 place convexes with a screening cover 4 respectively to the both sides of this cabinet panel 2.
Each screening cover 4 is a sleeve, and it comprises second end that first end and that links to each other with this cabinet panel 2 does not link to each other with this cabinet panel 2, and the internal diameter of this screening cover 4 from first end to second end decrescence.It is elongated to make that so the electromagnetic signal of cabinet inside flow to the stroke of cabinet outside, and cabinet is outside forms electromagnetic radiation thereby be difficult for arriving.In addition, 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.
When making this cabinet panel 2, also two metallic plates can be pressed into a slice and form, wherein all offer the perforate of some circles on each metallic plate, wherein each perforate all is convexly equipped with a sleeve to a side, each sleeve comprises second end that first end and that links to each other with metallic plate does not link to each other with this metallic plate, and the internal diameter of this sleeve from first end to second end decrescence.Afterwards the two sides phase pressing that is not convexly equipped with sleeve on two metallic plates can be formed this cabinet panel 2.
Also can be convexly equipped with one respectively to the both sides of this cabinet panel 2 at perforate 3 places of this cabinet panel 2 in addition and roughly be hemispheric screening cover, the top of this screening cover offers a circular hole over against the position of this perforate 3, so can form this cabinet panel 2.
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 11dB to improve than the electromagnetic radiation screening rate of cabinet among Fig. 1 10 among Fig. 3.
The shape of this sleeve and length can change according to designer's needs, such as, when being shaped as of this perforate 3 was square, this sleeve then corresponded to a square sleeve.And when the length of sleeve changed, the electromagnetic radiation screening rate of this cabinet also can correspondingly change.
Claims (6)
1. cabinet, comprise a cabinet panel, has plurality of opening on this cabinet panel, each tapping convexes with a screening cover respectively to the both sides of this cabinet panel, this screening cover is the sleeve of a both ends open, it comprises second end that first end and that links to each other with cabinet panel does not link to each other with cabinet panel, and the internal diameter of this screening cover from first end to second end decrescence.
2. cabinet according to claim 1, it is characterized in that: this perforate is rounded, and this screening cover is a circular sleeve, and the radius of its first end equates with the radius of this perforate.
3. cabinet according to claim 1, it is characterized in that: this perforate is square, and this screening cover is a square sleeve, and the shape of its first end is identical with the shape of this perforate.
4. cabinet, comprise a cabinet panel, this cabinet panel comprises two metallic plates, all has plurality of opening on each metallic plate, wherein each perforate all is convexly equipped with the sleeve of a both ends open to a side of metallic plate, and each sleeve comprises second end that first end and that links to each other with this metallic plate does not link to each other with this metallic plate, and the internal diameter of this sleeve from first end to second end decrescence, the two sides that this two metallic plate is not convexly equipped with sleeve fits, and the perforate on two metallic plates one by one over against.
5. as the cabinet as described in the claim 4, it is characterized in that: this perforate is rounded, and this screening cover is circular sleeve, and the radius of its first end equates with the radius of perforate.
6. as the cabinet as described in the claim 4, it is characterized in that: this perforate is square, and this screening cover is square sleeve, and the shape of its first end is identical with the shape of perforate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101972036A CN102281747A (en) | 2010-06-10 | 2010-06-10 | Case |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101972036A CN102281747A (en) | 2010-06-10 | 2010-06-10 | Case |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102281747A true CN102281747A (en) | 2011-12-14 |
Family
ID=45106827
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101972036A Pending CN102281747A (en) | 2010-06-10 | 2010-06-10 | Case |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102281747A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105228397A (en) * | 2015-11-02 | 2016-01-06 | 珠海格力电器股份有限公司 | Electric appliance box |
| CN110831418A (en) * | 2018-08-09 | 2020-02-21 | 鸿富锦精密工业(武汉)有限公司 | Case panel and case adopting same |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5285350A (en) * | 1992-08-28 | 1994-02-08 | Aavid Engineering, Inc. | Heat sink plate for multiple semi-conductors |
| US6297446B1 (en) * | 1999-02-26 | 2001-10-02 | Hewlett Packard Company | High performance EMC vent panel |
| US20040233654A1 (en) * | 2003-05-23 | 2004-11-25 | Lin Yun Hsu | EMI-attenuating air ventilation panel |
| US6838613B2 (en) * | 2001-04-20 | 2005-01-04 | Hewlett-Packard Development Company, L.P. | Electromagnetic interference shield |
-
2010
- 2010-06-10 CN CN2010101972036A patent/CN102281747A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5285350A (en) * | 1992-08-28 | 1994-02-08 | Aavid Engineering, Inc. | Heat sink plate for multiple semi-conductors |
| US6297446B1 (en) * | 1999-02-26 | 2001-10-02 | Hewlett Packard Company | High performance EMC vent panel |
| US6838613B2 (en) * | 2001-04-20 | 2005-01-04 | Hewlett-Packard Development Company, L.P. | Electromagnetic interference shield |
| US20040233654A1 (en) * | 2003-05-23 | 2004-11-25 | Lin Yun Hsu | EMI-attenuating air ventilation panel |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105228397A (en) * | 2015-11-02 | 2016-01-06 | 珠海格力电器股份有限公司 | Electric appliance box |
| CN110831418A (en) * | 2018-08-09 | 2020-02-21 | 鸿富锦精密工业(武汉)有限公司 | Case panel and case adopting same |
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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: 20111214 |