CN110012654A - Novel dish shielding finger - Google Patents
Novel dish shielding finger Download PDFInfo
- Publication number
- CN110012654A CN110012654A CN201910204388.XA CN201910204388A CN110012654A CN 110012654 A CN110012654 A CN 110012654A CN 201910204388 A CN201910204388 A CN 201910204388A CN 110012654 A CN110012654 A CN 110012654A
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- China
- Prior art keywords
- annular plate
- reed
- connector unit
- connecting cylinder
- unit
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- 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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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K9/00—Screening of apparatus or components against electric or magnetic fields
Abstract
The invention discloses a kind of novel dish-shaped shielding fingers, including more than two reed units, reed unit include upper reed plate and lower reed；Upper reed plate unit includes the first upper annular plate, the first lower annular plate and the first connecting cylinder, the outer edge sealed connection of the upper end of the first connecting cylinder and the first upper annular plate, the inside edge sealed connection of the lower end of the first connecting cylinder and the first lower annular plate；Lower reed unit includes the second upper annular plate, the second lower annular plate and the second connecting cylinder；First lower annular plate is coaxial with the second upper annular plate and the lower surface of the first lower annular plate is fixedly connected with the upper surface of the second upper annular plate；Second lower annular plate of the first upper annular plate of each reed unit and its reed unit of top one is coaxially disposed and is tightly connected.The utility model has the advantages that there is no gap between each section of the present invention, do not have electromagnetism in use and radiated from the present invention, electromagnetic screen avoiding effect of the invention is good, will not generate electromagnetic interference to other electric elements in use.
Description
Technical field
The present invention relates to a kind of novel dish-shaped shielding fingers, belong to electromangnetic spectrum field.
Background technique
Electromagnetic interference problem is the faced urgent problem to be solved of communication equipment, to solve electromagnetic interference problem, the patent No.
A kind of shielding finger is disclosed for the Chinese utility model patent of ZL2012207257380, which includes endless metal
Multiple spring teeth are uniformly arranged in the outer edge of annular sheet metal in piece, and spring tooth and annular sheet metal and vertical plane slope inwardly 0~
60 °, part electromagnetic radiation is blocked with spring tooth, and due to there are gap between the spring tooth of above-mentioned shielding finger, electromagnetic radiation still can be from
Gap between two adjacent spring teeth is radiate, and electromagnetic shielding performance is still bad, when in use still can be to other
Port generate electromagnetic interference.
Summary of the invention
The object of the present invention is to provide a kind of novel dish-shaped shielding fingers, solve shielding finger in the prior art due to depositing
The technological deficiency of performance difference is kept away in gap and electromagnetic screen.
To solve the above problems, the technical solution used in the present invention is: a kind of novel dish-shaped shielding finger, including two
Above reed unit, the reed unit include the upper reed plate of metal material and the lower reed of metal material；Described is upper
Reed unit include the first upper annular plate, the first lower annular plate and the first connecting cylinder, the internal diameter of first upper annular plate and
Outer diameter is respectively smaller than the internal diameter and outer diameter of the first lower annular plate, and first connecting cylinder is small round table-like in the big upper end in lower end,
The upper end of first connecting cylinder and the outer edge of the first upper annular plate are tightly connected, under the lower end of the first connecting cylinder and first
The inside edge of annular slab is tightly connected；The lower reed unit includes the second upper annular plate, the second lower annular plate and the second company
Connect cylinder, the internal diameter and outer diameter of second upper annular plate are equal with the internal diameter of the first lower annular plate and outer diameter respectively, under second
The internal diameter and outer diameter of annular slab are equal with the internal diameter of the first upper annular plate and outer diameter respectively, and second connecting cylinder is that upper end is big
The inside edge of small round table-like in lower end, the upper end of the second connecting cylinder and the second upper annular plate is tightly connected, under the second connecting cylinder
End and the outer edge of the second lower annular plate are tightly connected；First lower annular plate is coaxial with the second upper annular plate and first
The lower surface of lower annular plate is fixedly connected with the upper surface of the second upper annular plate；First upper annular plate of each reed unit and its
Second lower annular plate of the reed unit of top one is coaxially disposed and is tightly connected.Shielding finger in the present invention is except both ends tool
There is opening outer, rest part is sealing structure, and no electromagnetic radiation can be radiate through the invention, is avoided to other members
Part generates electromagnetic interference, and compared with prior art, effectiveness of the invention is more preferable.
It as a further improvement of the present invention, further include two conductive cemented joints, the conductive cemented joint, described leads
Electric cemented joint is separately mounted on one the second lower annular plate of the first upper annular plate of the top one and bottom, the conduction
Cemented joint is provided with the installation through-hole through its two sides along the vertical direction.Conductive cemented joint is arranged in the present invention, it can be ensured that the present invention two
Electromagnetic radiation is not had at end opening to go out, further improves electromagnetic screen avoiding effect of the invention.
As a further improvement of the present invention, it is circular first connector list that the conductive cemented joint, which includes cross section,
Member, the second connector unit and third connector unit, the both ends of second connector unit be separately connected the first connector unit and
Third connector unit, the diameter of first connector unit, the second connector unit and third connector unit be respectively D1, D2 and
D3, wherein D1 > D3 > D2, first connector unit and third connector unit are located at the outside of reed unit and interior
Portion.Conductive cemented joint in the present invention is made of three parts, and after installation, first connects pass unit and third connector unit difference position
In the outside and inside of reed unit, entire conduction cemented joint is stuck on reed unit, realizes the fixation of conducting resinl unit.
As a further improvement of the present invention, the third connector unit is arranged far from one end of the first connector unit
Chamfering.The present invention facilitates the installation of conductive cemented joint in the pavilion third connector unit Shang She chamfering.
In conclusion the beneficial effects of the present invention are: not having gap, not have electricity in use between each section of the present invention
Magnetic is radiated from the present invention, and electromagnetic screen avoiding effect of the invention is good, will not be generated in use to other electric elements
Electromagnetic interference.
Detailed description of the invention
Fig. 1 is main view of the invention.
Fig. 2 is top view of the invention.
Fig. 3 is the A-A cross-sectional view of Fig. 1.
Fig. 4 is schematic perspective view of the invention.
Fig. 5 is the main view of reed unit in the reflection present invention.
Fig. 6 is longitudinal cut-away view of conductive cemented joint in the reflection present invention.
Wherein: 1, reed unit；2, upper reed plate；3, lower reed；4, the first upper annular plate；5, the first lower annular plate；6,
One connecting cylinder；7, the second upper annular plate；8, the second lower annular plate；9, the second connecting cylinder；10, conductive cemented joint；11, installation is logical
Hole；12, the first connector unit；13, the second connector unit；14, third connector unit；15, chamfering.
Specific embodiment
A specific embodiment of the invention is described further with reference to the accompanying drawing.
Novel dish-shaped shielding finger as shown in figs 1 to 6, including more than two reed units 1, each reed unit 1
Top is fixedly connected and seals with the bottom end that its top one has reed unit 1, and the reed unit 1 includes metal material
The lower reed 3 of upper reed plate 2 and metal material, the present invention are illustrated for including two reed units 1.
2 unit 1 of upper reed plate includes the first upper annular plate 4, the first lower annular plate 5 and the first connecting cylinder 6, described
The internal diameter and outer diameter of first upper annular plate 4 are respectively smaller than the internal diameter and outer diameter of the first lower annular plate 5, first connecting cylinder 6
For the big upper end in lower end small round table-like, the upper end of first connecting cylinder 6 and the outer edge sealing company of the first upper annular plate 4
It connects, the inside edge of the lower end of the first connecting cylinder 6 and the first lower annular plate 5 is tightly connected.Currently preferred first upper annular plate 4
The internal diameter at 6 top of outer diameter and the first connecting cylinder it is equal, first upper annular plate 4 is located in the first connecting cylinder 6 and the
The top of one connecting cylinder 6 and the upper surface of the first upper annular plate 4 are in the same plane, first connecting cylinder 6 and first
Upper annular plate 4 is welded and fixed；The internal diameter of first lower annular plate 5 is equal with the outer diameter of lower end of the first connecting cylinder 6, described
The lower end of the first connecting cylinder 6 protrude into the centre bore of the first lower annular plate 5, and under the bottom and first of the first connecting cylinder 6
The lower surface of annular slab 5 is in the same plane, and first connecting cylinder 6 is welded and fixed with the first lower annular plate 5, the present invention
In the first lower annular plate 5, the first upper annular plate 4 and the first connecting cylinder 6 center line be overlapped.
3 unit 1 of lower reed includes the second upper annular plate 7, the second lower annular plate 8 and the second company that center line is overlapped
Connect cylinder 9, the internal diameter and outer diameter of second upper annular plate 7 are equal with the internal diameter of the first lower annular plate 5 and outer diameter respectively, and second
The internal diameter and outer diameter of lower annular plate 8 are equal with the internal diameter of the first upper annular plate 4 and outer diameter respectively, and second connecting cylinder 9 is
Small top and big bottom is round table-like, and the inside edge of the upper end of the second connecting cylinder 9 and the second upper annular plate 7 is tightly connected, and second connects
The outer edge of the lower end of connect cylinder 9 and the second lower annular plate 8 is tightly connected, the structure phase of lower reed 3 and upper reed plate 2 in the present invention
Together, and lower reed 3 and upper reed plate 2 are symmetrical arranged.
The first heretofore described lower annular plate 5 is coaxial with the second upper annular plate 7 and the following table of the first lower annular plate 5
Face is fixedly connected with the upper surface of the second upper annular plate 7, in the present invention the first upper annular plate 4 of the one reed unit 1 in lower section with
Second lower annular plate 8 of the reed unit 1 of top one is coaxially disposed and is tightly connected, currently preferred first upper annular plate
4 and second lower annular plate 8 using welding by the way of fixing seal.
For the keeping away property of electromagnetic screen for ensuring upper and lower ends of the present invention, two conductive cemented joints 10 are arranged in the present invention, and described leads
Electric cemented joint 10, the conductive cemented joint 10 are separately mounted under one the first upper annular plate 4 in top and lower section one second
On annular slab 8, the conductive cemented joint 10 is provided with the installation through-hole 11 through its two sides along the vertical direction so that connector is worn
It crosses.Heretofore described conductive cemented joint 10 includes that cross section is circular first connector unit 12, the second connector unit 13
The first connector unit 12 and third connector list are separately connected with the both ends of third connector unit 14, second connector unit 13
Member 14, the diameter of first connector unit 12, the second connector unit 13 and third connector unit 14 be respectively D1, D2 and
D3, wherein D1 > D3 > D2, the diameter D2 of the second connector unit 13 and the first upper annular plate 4 and the second lower annular plate in the present invention
8 internal diameter is equal, and the diameter D3 of the third connector unit 14 is slightly larger than the internal diameter of the first upper annular plate 4, and described first
Connector unit 12 and third connector unit 14 are located at reed unit 1 outwardly and inwardly, the first connector unit in the present invention
12, the second connector unit 13 and third connector unit 14 are integrally formed, when installing conductive cemented joint 10, by third connector unit
14 are placed on the first upper annular plate 4, and pin conductive cemented joint 10, and third connector unit 14 is pressed into reed unit 1, makes the
One connector unit 12 and third connector unit 14 are located at the two sides of the first upper annular plate 4, the second connector in the present invention
The axial length of unit 13 is identical as the thickness of the first upper annular plate 4.For 10 installation convenient for conductive cemented joint, the present invention exists
Chamfering 15 is arranged far from one end of the first connector unit 12 in the third connector unit 14.
The first connecting cylinder and the second connecting cylinder of reed unit 1 in the present invention are dish, and the present invention is wave on the whole
Line shape, elasticity with higher, compression ratio is high, and the reed unit in the present invention is made of beryllium-bronze or stainless steel material, spring
Welding procedure can be used in piece junction, using shielding finger of the invention, the basic shielding that can be achieved to electromagnetic wave 100%.This hair
The bright conducting resinl system current material that conductive cemented joint 10 is made, it is currently preferred limited using stone great achievement science and technology share in Beijing
The conducting resinl that company sells.
Not doing the part illustrated in above instructions is the prior art, or has both been able to achieve by the prior art.
And heretofore described specific implementation case is only preferable case study on implementation of the invention, and it is not for the purpose of limiting the invention
Practical range.Equivalent changes and modifications made by i.e. all contents according to scope of the present invention patent, all should be used as of the invention
Technology scope.
Claims (4)
1. a kind of novel dish-shaped shielding finger, it is characterised in that: including more than two reed units (1), the reed list
First (1) includes the upper reed plate (2) of metal material and the lower reed (3) of metal material；
Upper reed plate (2) unit (1) includes the first upper annular plate (4), the first lower annular plate (5) and the first connecting cylinder (6),
The internal diameter and outer diameter of first upper annular plate (4) are respectively smaller than the internal diameter and outer diameter of the first lower annular plate (5), and described
One connecting cylinder (6) is small round table-like, the upper end and the first upper annular plate (4) of first connecting cylinder (6) in the big upper end in lower end
Outer edge be tightly connected, the inside edge of the lower end of the first connecting cylinder (6) and the first lower annular plate (5) is tightly connected；
Lower reed (3) unit (1) includes the second upper annular plate (7), the second lower annular plate (8) and the second connecting cylinder (9),
The internal diameter and outer diameter of second upper annular plate (7) are equal with the internal diameter of the first lower annular plate (5) and outer diameter respectively, under second
The second equal with the internal diameter of the first upper annular plate (4) and outer diameter respectively, described connecting cylinder of the internal diameter and outer diameter of annular slab (8)
It (9) is small top and big bottom round table-like, the upper end of the second connecting cylinder (9) and the inside edge sealing company of the second upper annular plate (7)
It connects, the lower end of the second connecting cylinder (9) and the outer edge of the second lower annular plate (8) are tightly connected；
First lower annular plate (5) is coaxial with the second upper annular plate (7) and the lower surface of the first lower annular plate (5) and the
The upper surface of two upper annular plates (7) is fixedly connected；
The second lower annular plate (8) of the first upper annular plate (4) of each reed unit (1) and its one reed unit (1) in top
It is coaxially disposed and is tightly connected.
2. novel dish-shaped shielding finger according to claim 1, it is characterised in that: further include two conductive cemented joints
(10), the conductive cemented joint (10), the conductive cemented joint (10) are separately mounted on the top one first annular
On one the second lower annular plate (8) of plate (4) and bottom, the conductive cemented joint (10) be provided with along the vertical direction through its two
The installation through-hole (11) of side.
3. novel dish-shaped shielding finger according to claim 2, it is characterised in that: the conductive cemented joint (10) includes
Cross section be circular first connector unit (12), the second connector unit (13) and third connector unit (14), described second
The both ends of connector unit (13) are separately connected the first connector unit (12) and third connector unit (14), the first connector list
The diameter of first (12), the second connector unit (13) and third connector unit (14) is respectively D1, D2 and D3, wherein D1 > D3 >
D2, first connector unit (12) and third connector unit (14) are located at reed unit (1) outwardly and inwardly.
4. novel dish-shaped shielding finger according to claim 3, it is characterised in that: the third connector unit (14) is remote
Chamfering (15) are arranged in one end from the first connector unit (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910204388.XA CN110012654B (en) | 2019-03-18 | 2019-03-18 | Novel dish-shaped shielding reed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910204388.XA CN110012654B (en) | 2019-03-18 | 2019-03-18 | Novel dish-shaped shielding reed |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110012654A true CN110012654A (en) | 2019-07-12 |
| CN110012654B CN110012654B (en) | 2020-09-25 |
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ID=67167290
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910204388.XA Active CN110012654B (en) | 2019-03-18 | 2019-03-18 | Novel dish-shaped shielding reed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110012654B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203799839U (en) * | 2014-04-23 | 2014-08-27 | 中国西电电气股份有限公司 | Oil tank and line discharging device of alternating-current transformer and electrical shielding structure thereof |
| CN104519726A (en) * | 2013-09-29 | 2015-04-15 | 深圳光启创新技术有限公司 | Honeycomb core material, compound wave-absorbing material and honeycomb enhanced metamaterial |
| CN207284047U (en) * | 2017-10-18 | 2018-04-27 | 深圳市飞荣达科技股份有限公司 | Shielding finger and shielding finger unit |
-
2019
- 2019-03-18 CN CN201910204388.XA patent/CN110012654B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104519726A (en) * | 2013-09-29 | 2015-04-15 | 深圳光启创新技术有限公司 | Honeycomb core material, compound wave-absorbing material and honeycomb enhanced metamaterial |
| CN203799839U (en) * | 2014-04-23 | 2014-08-27 | 中国西电电气股份有限公司 | Oil tank and line discharging device of alternating-current transformer and electrical shielding structure thereof |
| CN207284047U (en) * | 2017-10-18 | 2018-04-27 | 深圳市飞荣达科技股份有限公司 | Shielding finger and shielding finger unit |
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| Publication number | Publication date |
|---|---|
| CN110012654B (en) | 2020-09-25 |
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