CN104093296A - RF shielding structure - Google Patents
RF shielding structure Download PDFInfo
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- CN104093296A CN104093296A CN201410232537.0A CN201410232537A CN104093296A CN 104093296 A CN104093296 A CN 104093296A CN 201410232537 A CN201410232537 A CN 201410232537A CN 104093296 A CN104093296 A CN 104093296A
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- Prior art keywords
- shielding construction
- shielded
- spring wire
- gap
- plate tube
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- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Abstract
An RF shielding structure is characterized in that the RF shielding structure is composed of a contact sleeve and a shielding tube, a gap is left between the contact sleeve and the shielding tube, and a spring wire is arranged in the gap. According to the shielding structure, improvement is made on spring contact, beam current experiment observation is carried out on the shielding effect before and after improvement, and the experiment shows that higher-order mode leakage exists before improvement and is effectively suppressed after improvement.
Description
Technical field
The design relates to RF shielding construction, belongs to electronic technology field.
Background technology
The bellows of certain electron-positron collider in-vacuum wiggler is at strong damage and the vacuum leak of having occurred in service of height stream of electronic beam current.In this bellows, designed the shielding construction of an oval cross section.The main body of shielding construction is shielded-plate tube, and shielded-plate tube downstream is a contact sleeve, has the gap of certain width between the two, adopts a spring leaf to realize RF contact.Spring leaf is bolted on shielded-plate tube end, and spring leaf self has 26 springs to refer to, when bellows reaches the decrement of design, contact sleeve and 26 springs refer to keep good contact.If bellows is not compressed to the installation length of design, the gap that may exist between spring leaf and contact sleeve, will cause higher mode leakage.
Summary of the invention
For the deficiencies in the prior art, the design's object is to provide a kind of RF shielding construction.
For achieving the above object, the design realizes by following technological means:
A RF shielding construction, is characterized in that: described RF shielding construction is comprised of contact sleeve and shielded-plate tube, has a gap between described contact sleeve and shielded-plate tube, is provided with spring wire between gap.
Preferably, described a kind of RF shielding construction, is characterized in that: the gap between described contact sleeve and shielded-plate tube is 8mm.
Preferably, described a kind of RF shielding construction, is characterized in that: described spring wire is fixed on shielded-plate tube end.
Preferably, described a kind of RF shielding construction, is characterized in that: described spring wire is bolted on shielded-plate tube end.
Preferably, described a kind of RF shielding construction, is characterized in that: described spring wire be shaped as annular.
Preferably, described a kind of RF shielding construction, is characterized in that: described spring wire adopts conductive elastomer to make.
The invention has the beneficial effects as follows: the design improves the spring contact of shielding construction, and the shield effectiveness before and after improving has been carried out to Ion Beam Experiment observation, experiment shows to exist higher mode to leak before transformation, has effectively suppressed higher mode leakage after transformation.
Accompanying drawing explanation
Fig. 1 is former RF shielding construction, and Fig. 2 is former spring leaf contact structures, and Fig. 3 is the design's spring wire contact structures.
The implication of drawing reference numeral is as follows: 1 contact sleeve, 2 spring leafs, 3 shielded-plate tubes, 4 bolts, 5 spring wires.
Embodiment
Below in conjunction with Figure of description, design is further described.
As shown in Figure 1, 2, 3, a kind of RF shielding construction, is characterized in that: described RF shielding construction is comprised of contact sleeve 1 and shielded-plate tube 3, between described contact sleeve 1 and shielded-plate tube 3, has a gap, is provided with spring wire 5 between gap.
The design changes former spring leaf 2 into spring wire 5, because spring wire 5 is all larger than spring leaf 2 elasticity and contact area, can reduce may have gap between spring leaf 2 and contact sleeve 1, avoids higher mode to leak.
Preferably, described a kind of RF shielding construction, is characterized in that: the gap between described contact sleeve 1 and shielded-plate tube 3 is 8mm.
Preferably, described a kind of RF shielding construction, is characterized in that: described spring wire 5 is fixed on shielded-plate tube 3 ends.
Preferably, described a kind of RF shielding construction, is characterized in that: described spring wire 5 is fixed on shielded-plate tube 3 ends by bolt 4.
Preferably, described a kind of RF shielding construction, is characterized in that: described spring wire 5 be shaped as annular.
Preferably, described a kind of RF shielding construction, is characterized in that: described spring wire 5 adopts conductive elastomer to make.
More than show and described the design's basic principle, principal character and advantage.The technical staff of the industry should understand; the design is not restricted to the described embodiments; the principle that the design is just described of describing in above-described embodiment and specification; do not departing under the prerequisite of the design's spirit and scope; the design also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the design.The claimed scope of the design is defined by appending claims and equivalent thereof.
Claims (6)
1. a RF shielding construction, is characterized in that: described RF shielding construction is comprised of contact sleeve and shielded-plate tube, has a gap between described contact sleeve and shielded-plate tube, is provided with spring wire between gap.
2. a kind of RF shielding construction as claimed in claim 1, is characterized in that: the gap between described contact sleeve and shielded-plate tube is 8mm.
3. a kind of RF shielding construction as claimed in claim 1, is characterized in that: described spring wire is fixed on shielded-plate tube end.
4. a kind of RF shielding construction as claimed in claim 3, is characterized in that: described spring wire is bolted on shielded-plate tube end.
5. a kind of RF shielding construction as claimed in claim 1, is characterized in that: described spring wire be shaped as annular.
6. a kind of RF shielding construction as claimed in claim 1, is characterized in that: described spring wire adopts conductive elastomer to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410232537.0A CN104093296A (en) | 2014-05-29 | 2014-05-29 | RF shielding structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410232537.0A CN104093296A (en) | 2014-05-29 | 2014-05-29 | RF shielding structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104093296A true CN104093296A (en) | 2014-10-08 |
Family
ID=51640957
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410232537.0A Pending CN104093296A (en) | 2014-05-29 | 2014-05-29 | RF shielding structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104093296A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0645780A (en) * | 1992-07-22 | 1994-02-18 | Nec Gumma Ltd | Electromagnetic shielding earth spring |
| JP2002280131A (en) * | 2001-03-21 | 2002-09-27 | Furukawa Electric Co Ltd:The | Shield connector for connection of device |
| CN2565236Y (en) * | 2002-04-29 | 2003-08-06 | 华为技术有限公司 | Cable head connector |
| CN201985331U (en) * | 2010-12-15 | 2011-09-21 | 杭州航天电子技术有限公司 | Rectangular shielding electric connector using low-resistance flexible spring |
| CN203912449U (en) * | 2014-05-29 | 2014-10-29 | 苏州锟恩电子科技有限公司 | RF shielding structure |
-
2014
- 2014-05-29 CN CN201410232537.0A patent/CN104093296A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0645780A (en) * | 1992-07-22 | 1994-02-18 | Nec Gumma Ltd | Electromagnetic shielding earth spring |
| JP2002280131A (en) * | 2001-03-21 | 2002-09-27 | Furukawa Electric Co Ltd:The | Shield connector for connection of device |
| CN2565236Y (en) * | 2002-04-29 | 2003-08-06 | 华为技术有限公司 | Cable head connector |
| CN201985331U (en) * | 2010-12-15 | 2011-09-21 | 杭州航天电子技术有限公司 | Rectangular shielding electric connector using low-resistance flexible spring |
| CN203912449U (en) * | 2014-05-29 | 2014-10-29 | 苏州锟恩电子科技有限公司 | RF shielding structure |
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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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20141008 |
|
| RJ01 | Rejection of invention patent application after publication |