CN103513124B - Electromagnetic shielding test device - Google Patents
Electromagnetic shielding test device Download PDFInfo
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- CN103513124B CN103513124B CN201210222360.7A CN201210222360A CN103513124B CN 103513124 B CN103513124 B CN 103513124B CN 201210222360 A CN201210222360 A CN 201210222360A CN 103513124 B CN103513124 B CN 103513124B
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- carrier plate
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- ground shield
- test carrier
- metal cover
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Abstract
A kind of electromagnetic shielding test device, comprises a test carrier plate, a load bearing seat and an isolating metal cover.The upper and lower surface that test carrier plate is relative is provided with ground shield, and inside is provided with signal transmitting layer, and is provided with multiple signal weld pad at upper surface, and it is formed with internal signal transmitting layer and conducts.Load bearing seat is arranged on the upper surface of test carrier plate, and is provided with multiple test probe welded mutually with signal weld pad.Isolating metal cover cap is located on the upper surface of test carrier plate, and isolating metal cover conducts with the ground shield formation of upper surface, and isolating metal cover is formed with an insulating space, and load bearing seat is contained in insulating space.By above-mentioned design, enable the invention to have and reach outside the electromagnetic interference that isolation is extraneous, and can have and reach low cost, the little purpose high with space utilization rate of volume.
Description
Technical field
The present invention relates to a kind of test device, the electromagnetic shielding particularly for isolation external electromagnetic ripple noise jamming is surveyed
Electricity testing device.
Background technology
Electromagnetic interference (EMI) occurs with electronics, electrical technology development, and every electronics, technical field of electricity are all
Can there be electromagnetic interference.The produced electromagnetic interference such as electronics, electrical system or equipment in a large amount of uses can affect human body and be good for
Health, the most also can produce impact and harm to the safety and reliability etc. that electronics, electrical system or equipment are mutual.Severe
Electromagnetic environment often makes electronics, electrical system or equipment cisco unity malfunction, even causes fault and accident, or affects electronics
Data during product test.
Accuracy signal transmitted however as wireless communications products, current mobile phone, PDA and associated host electricity
Road plate completes the stage in exploitation, needs to carry out the test of correlation properties more, and in general open environment be have extremely complicated and
Serious electromagnetic interference, the easily degree of accuracy of impact test.Therefore, above-mentioned most test all must be in low EMI
The environment of (being even without Electromagnetic Interference) is implemented test, to reach preferably testing precision.
Tradition provides the device of low EMI (without electromagnetic interference) test environment to be a tool signal isolation features at present
Test shielded box, its basic structure is to coordinate an openable lid with a casing, one can accommodate electronics to be measured so as to providing
Product, the accommodation space of module, casing and lid all have splendid permeance, can be adequately isolated extraneous various electromagnetic waves and make an uproar
The interference of sound.
But, the outside dimension of test shielded box the most conventional is about 30 (wide) × 30 (length) × 30 (high)
Cm, easily occupies use space, and space utilization rate when order uses is poor, and has various test use function, makes traditional
It is higher that test shielded box sells price.Therefore for user, current test shielded box cannot meet for use face
And considering in Costco Wholesale, therefore, how can be outside basic low EMI (without electromagnetic interference) test environment, also simultaneously
Be provided that the device that low cost, volume are little, space service efficiency is high, be for each relevant research staff the problem of urgently effort.
Summary of the invention
The purpose of the present invention, is to provide and a kind of can reach the electromagnetic interference that isolation is extraneous, and can have and reach low cost, body
The long-pending little electromagnetic shielding test device high with space utilization rate.
A time purpose of the present invention, is to make above-mentioned electromagnetic shielding test device can have more preferably isolation effect, with
Further it is adequately isolated the interference of the various electromagnetic wave noises in the external world.
In order to achieve the above object, the present invention provides a kind of electromagnetic shielding test device, comprises a Multi-layer circuit board structure
Test carrier plate, a load bearing seat and an isolating metal cover.
The upper and lower surface that above-mentioned test carrier plate is relative is provided with ground shield, and inside is provided with signal transmitting layer, and
Upper surface is provided with multiple signal weld pad, and it is formed with internal signal transmitting layer and conducts.Load bearing seat is arranged at test carrier plate
On upper surface, and it is provided with multiple test probe welded mutually with signal weld pad.Isolating metal cover is in being removably covered on test
On the upper surface of support plate, isolating metal cover conducts with the ground shield formation of upper surface, and isolating metal cover is formed
One insulating space, load bearing seat is contained in insulating space.
It is preferred that this ground shield of this test carrier plate upper surface is covered with in the periphery of this load bearing seat to this test carrier plate
Edge；This ground shield of this test carrier plate lower surface is covered with in this lower surface whole.
It is preferred that this ground shield of this test carrier plate upper surface is laid in periphery and this isolating metal of this load bearing seat
Covering between corresponding position, being positioned at this ground shield of this lower surface, to be laid in this lower surface corresponding with this isolating metal cover
Position.
It is preferred that this ground shield of this upper surface is laid in the periphery of this load bearing seat, and exceed this isolating metal
Peripheral and the boundary of cover is in the edge of this test carrier plate between side, and this ground shield of this lower surface is not less than this upper surface
The edge of ground shield.
It is preferred that this test carrier plate is high density connects circuit board.
It is preferred that this load bearing seat is arranged with a storing alcove, it is recessed that the top of the plurality of test probe is inserted into this storing
Room.
It is preferred that this storing alcove is in order to put a wireless communication module, the signal pin of this wireless communication module and institute
The top stating multiple test probe contacts.
It is preferred that be installed with the conductive elastomer of at least one circle, test carrier plate upper surface and isolation below isolating metal cover
Ground shield at metal cap opposite position has more plated Gold plated Layer, and conductive elastomer is the most flexibly contacted with and has this
The ground shield of Gold plated Layer.
It is preferred that this conductive elastomer is conducting foam.
The benefit that the present invention has: utilize the ground shield on test carrier plate hood-shaped with isolating metal become one isolation sky
Between, so can reach and have the isolation effect identical with traditional test shielded box with the suitable area of test carrier plate, so by upper
The composition stated and structure design, its simple structure and there is easily fabricated production, then the cost of cost can be made relatively low and there is body
Long-pending reduce, effect that space service efficiency is more high.
Secondly, plate Gold plated Layer by the ground shield at test carrier plate, and isolating metal cover and test carrier plate phase
Contact position is provided with conductive elastomer, the most more can contact-enhancing, with provide more preferable isolation effect, be further adequately isolated
The interference of extraneous various electromagnetic wave noises.
In order to be able to be further understood that technology, method and effect that the present invention is taked by reaching set purpose, refer to
Below in connection with detailed description of the invention and accompanying drawing, it is believed that the purpose of the present invention, feature and feature, when can thus one deeply and
Concrete understanding, but accompanying drawing only provides reference and explanation use, is not used for being any limitation as the present invention.
Accompanying drawing explanation
Fig. 1 is the three-dimensional exploded view of the present invention.
Fig. 2 is the sectional exploded view of the present invention.
Fig. 3 is the section view constitutional diagram of the present invention.
Fig. 4 is another embodiment of the present invention three-dimensional exploded view.
Fig. 5 is another embodiment of the present invention sectional exploded view.
Fig. 6 is another embodiment of the present invention section view constitutional diagram.
Wherein, description of reference numerals is as follows:
1 test carrier plate
101 upper surface 102 lower surfaces
11,11 ' ground shield 12 signal transmitting layer
13 signal weld pad 14 guide holes
15 Gold plated Layer
2 load bearing seats
21 put alcove
3 isolating metal covers
31 insulating spaces
4 test probes
41 bottom, tops 42
5 conductive elastomers
6 wireless communication modules
61 signal pins
Detailed description of the invention
Referring to shown in Fig. 1 to Fig. 3, Fig. 1 to Fig. 3 is a kind of electromagnetic shielding test device proposed by the invention, and it is fitted
By shielding isolation external electromagnetic ripple noise jamming when test circuit board, electronic module, electrical equipment, such as, can be used for testing a nothing
Line communication module 6.Electromagnetic shielding test device includes test carrier plate 1, load bearing seat 2 and an isolating metal cover 3.
Test carrier plate 1 is a Multi-layer circuit board structure, and for example, high density links (High Density
Interconnection, HDI) circuit board.The upper and lower surface 101,102 that test carrier plate 1 is relative be provided with ground shield 11,
11 ', this ground shield 11,11 ' is connected to each other to jointly (Ground), and the inside of test carrier plate 1 is then provided with signal and passes
Defeated layer 12, and the upper surface 101 of test carrier plate 1 is provided with multiple signal weld pad 13, and signal weld pad 13 then passes with internal signal
Defeated layer 12 is formed and conducts.Such as, the lower mode that can first pass through laser drill of signal weld pad 13 form guide hole 14 and with
Internal signal transmitting layer 12 conducts.Ground shield 11,11 ' and signal transmitting layer 12 can be all that Copper Foil is made, Qi Zhongxin
Number transport layer 12 can etch corresponding circuit according to testing requirement.
The size of load bearing seat 2 is not more than test carrier plate 1, and load bearing seat 2 is provided with multiple test probe 4, can be inserted in carrying
In seat 2.Load bearing seat 2 is arranged on the upper surface 101 of test carrier plate 1, test the bottom 42 of probe 4 then with signal weld pad 13 phase
Welding.In this example, load bearing seat 2 is located at the central part of test carrier plate 1.
Load bearing seat 2 is to carry wireless communication module 6, and its signal pin 61 can be with top 41 phase of test probe 4
Contact and formed and conduct.Preferably, load bearing seat 2 can be formed with a storing alcove 21, radio communication mold from top down is recessed
Block 6 can be arranged in storing alcove 21, and the top 41 of test probe 4 is inserted in storing alcove 21.Wherein, by radio communication
Module 6 is located in storing alcove 21, and trims with load bearing seat 2, then advantageously reduce the height dimension of entirety.
Isolating metal cover 3 is the concave up insulating space 31 that is provided with from bottom surface, and isolating metal cover 3 sets in removably lid
On the upper surface 101 of test carrier plate 1, and the ground shield 11 of isolating metal cover 3 and upper surface 101 is formed and electrically conducts.
Meanwhile, load bearing seat 2 can be contained in the insulating space 31 of isolating metal cover 3 with the wireless communication module 6 on load bearing seat 2.So
And, it is conducted to the signal pin 61 of wireless communication module 6 by test probe 4 inside of test carrier plate 1, so can completely cut off
The signal of wireless communication module 6, it is to avoid be interfered.Meanwhile, the signal disturbing of outside is isolated by isolating metal cover 3.
Separately, in the present invention, the conductive elastomer 5 of at least one circle, and upper table preferably it are installed with below isolating metal cover 3
The ground shield 11 of position corresponding with isolating metal cover 3 on face 101 more can plate Gold plated Layer 15, conductive elastomer
5 can flexibly be contacted with the ground shield 11 with Gold plated Layer 15.So can be with contact-enhancing in survey by conductive elastomer 5
Examination support plate 1, and more preferable isolation effect is provided, and owing to gold utensil has excellent electric conductivity and non-oxidizability, therefore by gold-plated
Layer 15 then can add the isolation effect of strong electromagnetic again.Described conductive elastomer 5 can be a conducting foam, but also can use it
Its known elastomer with conductive effect, such as conductive rubber etc..
It addition, in the present embodiment, the ground shield 11 of test carrier plate 1 upper surface 101 is laid in the periphery of load bearing seat 2
Between the position corresponding with isolating metal cover 3, the ground shield 11 being positioned on lower surface 102 be then laid in lower surface 102 with
The position that isolating metal cover 3 is corresponding.Further instruction, upper surface 101 ground shield 11 effect essentially consist in every
Connecting from metal cap 3 and conduct, the effect of the ground shield 11 ' being positioned at lower surface 102 is then that shielding is positioned at isolation gold
Belong to the electromagnetic radiation below cover 3.Therefore, the ground shield 11,11 ' being positioned at upper and lower surface 101,102 needs to electrically connect, and both
Minimum Area can be identical with isolating metal cover 3.
It addition, seeing Fig. 4 to Fig. 6, Fig. 4 to Fig. 6 is in present pre-ferred embodiments, connecing of test carrier plate 1 upper surface 101
Ground screen layer 11 can be covered with in the periphery of load bearing seat 2 to test carrier plate 1 edge, the ground shield 11 being positioned on lower surface 102
Then can be covered with in whole lower surface 102.By above-mentioned, the present embodiment is positioned at the ground shield 11 of upper surface 101 and has bigger
Area, is easy to keep electrically connecting well when isolating metal cover 3 produces dislocation with ground shield 11；There is larger area
Ground shield 11 ' then can have more preferable shielding properties.But it is not limited, it is necessary to two ground shield 11,11 ' have
Identical outward flange, in general, the edge of the ground shield 11 ' being positioned at lower surface 102 can connecing not less than upper surface 101
The edge of ground screen layer 11, can possess and have preferable shielding properties.Imply that the ground shield 11 of upper surface 101 is laid in carrying
Seat 2 is peripheral, and exceeds the peripheral of isolating metal cover 3 boundary in test carrier plate 1 edge between side, the ground connection of lower surface 102
Screen layer 11 ' is i.e. not less than the edge of the ground shield 11 of upper surface 101.
Additionally, the overlapping region of the ground shield 11,11 ' of upper and lower surface 101,102 can prevent its interior signal from transmitting
Layer 12 in test signal in transmitting procedure by electromagnetic interference.Therefore, make the circuit in signal transmitting layer 12 can be as far as possible
It is positioned under the covering of two ground shield 11,11 ', then contributes to preferably shielding properties.
From upper explanation, the present invention utilizes the ground shield 11 on test carrier plate 1 to form one with isolating metal cover 3
Individual insulating space 31, so can reach have the isolation effect identical with traditional test shielded box with the suitable area of test carrier plate 1
Really, so design by above-mentioned composition and structure, its simple structure and there is easily fabricated production, then can make the cost of cost relatively
Low and there is effect that volume-diminished, space service efficiency are more high.
Secondly, plate Gold plated Layer 15 by the ground shield 11 at test carrier plate 1, and isolating metal cover 3 and test
Support plate 1 touching position is provided with conductive elastomer 5, the most more can contact-enhancing, and provide more preferable isolation effect, further
It is adequately isolated the interference of the various electromagnetic wave noises in the external world.
Embodiment described above is only technological thought and the feature of the explanation present invention, and its mesh makes ordinary skill
Personnel will appreciate that present disclosure and implement according to this, when can not with limit the present invention the scope of the claims, Yi Benfa the most generally
The equalization that bright disclosed spirit is made changes or modifies, and must contain in the scope of the claims of the present invention.
Claims (6)
1. an electromagnetic shielding test device, it is characterised in that comprise:
The test carrier plate of one Multi-layer circuit board structure, its relative upper and lower surface is provided with ground shield, and inside is provided with signal
Transport layer, the upper surface of this test carrier plate is provided with multiple signal weld pad, and the plurality of signal weld pad passes with internal described signal
Defeated layer is formed and conducts；
One load bearing seat, is arranged on the upper surface of this test carrier plate, and this load bearing seat is provided with multiple and the plurality of signal weld pad phase
The test probe of welding；This ground shield of this test carrier plate upper surface is covered with in the periphery of this load bearing seat to this test carrier plate
Edge；This ground shield of this test carrier plate lower surface is covered with in this lower surface whole；And
One isolating metal cover, it is in being removably covered on the upper surface of this test carrier plate, this isolating metal cover and table on this
This ground shield in face is formed and conducts, and this isolating metal cover is formed with an insulating space, and this load bearing seat is contained in this
In insulating space.
2. electromagnetic shielding test device as claimed in claim 1, it is characterised in that this test carrier plate is that high density connects circuit
Plate.
3. electromagnetic shielding test device as claimed in claim 1, it is characterised in that this load bearing seat is arranged with a storing alcove,
The top of the plurality of test probe is inserted into this storing alcove.
4. electromagnetic shielding test device as claimed in claim 3, it is characterised in that this storing alcove is in order to put a channel radio
Letter module, the signal pin of this wireless communication module contacts with the top of the plurality of test probe.
5. electromagnetic shielding test device as claimed in claim 1, it is characterised in that be installed with at least below this isolating metal cover
The conductive elastomer of one circle, the ground shield at this test carrier plate upper surface and this isolating metal cover opposite position also plates
Having Gold plated Layer, this conductive elastomer is flexibly contacted with the ground shield with this Gold plated Layer.
6. electromagnetic shielding test device as claimed in claim 5, it is characterised in that this conductive elastomer is conducting foam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210222360.7A CN103513124B (en) | 2012-06-29 | 2012-06-29 | Electromagnetic shielding test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210222360.7A CN103513124B (en) | 2012-06-29 | 2012-06-29 | Electromagnetic shielding test device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103513124A CN103513124A (en) | 2014-01-15 |
| CN103513124B true CN103513124B (en) | 2016-12-21 |
Family
ID=49896163
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210222360.7A Active CN103513124B (en) | 2012-06-29 | 2012-06-29 | Electromagnetic shielding test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103513124B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104375077A (en) * | 2014-11-13 | 2015-02-25 | 歌尔声学股份有限公司 | Functional circuit test (FCT) tool, system and method |
| KR101975836B1 (en) * | 2017-08-11 | 2019-08-28 | 리노공업주식회사 | A Test Device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5635775A (en) * | 1995-04-14 | 1997-06-03 | Colburn; Richard H. | Printed circuit board mount electro-magnetic interference suppressor |
| KR20080039723A (en) * | 2006-11-01 | 2008-05-07 | 엘지디스플레이 주식회사 | Integrated circuit chip package and liquid crystal display using it |
| CN101231307A (en) * | 2008-02-15 | 2008-07-30 | 日月光半导体制造股份有限公司 | Test arrangement capable of preventing electromagnetic interference and test approach thereof |
| CN201387438Y (en) * | 2009-03-20 | 2010-01-20 | 北京普源精电科技有限公司 | Measuring device with electromagnetic shielding device |
| TW201146157A (en) * | 2010-06-07 | 2011-12-16 | Universal Global Scient Ind Co Ltd | Electromagnetic shielding device |
| CN102446870A (en) * | 2010-10-13 | 2012-05-09 | 矽品精密工业股份有限公司 | Packaging component with electrostatic discharge and anti-interference of electromagnetic wave functions |
-
2012
- 2012-06-29 CN CN201210222360.7A patent/CN103513124B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5635775A (en) * | 1995-04-14 | 1997-06-03 | Colburn; Richard H. | Printed circuit board mount electro-magnetic interference suppressor |
| KR20080039723A (en) * | 2006-11-01 | 2008-05-07 | 엘지디스플레이 주식회사 | Integrated circuit chip package and liquid crystal display using it |
| CN101231307A (en) * | 2008-02-15 | 2008-07-30 | 日月光半导体制造股份有限公司 | Test arrangement capable of preventing electromagnetic interference and test approach thereof |
| CN201387438Y (en) * | 2009-03-20 | 2010-01-20 | 北京普源精电科技有限公司 | Measuring device with electromagnetic shielding device |
| TW201146157A (en) * | 2010-06-07 | 2011-12-16 | Universal Global Scient Ind Co Ltd | Electromagnetic shielding device |
| CN102446870A (en) * | 2010-10-13 | 2012-05-09 | 矽品精密工业股份有限公司 | Packaging component with electrostatic discharge and anti-interference of electromagnetic wave functions |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103513124A (en) | 2014-01-15 |
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