CN205720330U - The low frequency radio frequency product testing system processed based on EMI - Google Patents
The low frequency radio frequency product testing system processed based on EMI Download PDFInfo
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- CN205720330U CN205720330U CN201620255776.2U CN201620255776U CN205720330U CN 205720330 U CN205720330 U CN 205720330U CN 201620255776 U CN201620255776 U CN 201620255776U CN 205720330 U CN205720330 U CN 205720330U
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- shielding cylinder
- front door
- emi
- door assembly
- testing system
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- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
- Testing Electric Properties And Detecting Electric Faults (AREA)
Abstract
The utility model discloses a kind of low frequency radio frequency product testing system processed based on EMI, including the third level shielding cylinder being set in together, one end closure of described shielding cylinder, the other end of described shielding cylinder is provided with can the front door assembly of pull, described front door assembly connects the test supporting plate extending in described shielding cylinder, test board is installed on described test supporting plate, described front door assembly is provided with the electric supply installation being connected with described test board；Between described front door assembly and described shielding cylinder, pull-out guide is installed；This utility model can provide superior shielding properties in ultralow frequency range, it is ensured that when testing intrasonic product, is not disturbed by external environment.
Description
Technical field
This utility model relates to electronic product detection technique field, particularly relates to a kind of have good low frequency screen
Cover the product testing system of function.
Background technology
When the radio frequency productses such as mobile phone, wireless network card, wireless router are tested, in order to avoid electromagnetic wave
Interference, generally will shield the space residing for product with external environment condition, the most common radio frequency products
Test system mostly can only provide preliminary shield effectiveness at high band (700MHz-6GHz), in intrasonic
(20Hz-150KHz) do not has shielding properties.Along with making rapid progress of radio communication science and technology, people are to intrasonic
Product also has certain shielding properties requirement, and in prior art, the frequency height of general shielded box (generally exists
700MHz-6GHz), substantially there is no shielding properties in intrasonic (20Hz-150KHz).
Utility model content
Technical problem to be solved in the utility model is to provide a kind of simple to operate, shield effectiveness good based on
The low frequency radio frequency product testing system that EMI processes.
For solving above-mentioned technical problem, the technical solution of the utility model is: the low frequency processed based on EMI is penetrated
Frequently product testing system, including the three cascade screen cylinders being set in together, one end closure of described shielding cylinder, institute
State the other end of shielding cylinder be provided with can the front door assembly of pull, described front door assembly connect extend into described
Test supporting plate in shielding cylinder, described test supporting plate is provided with test board, described front door assembly is provided with
The electric supply installation being connected with described test board；Between described front door assembly and described shielding cylinder, pull is installed to lead
To device.
As the preferred technical scheme of one, described shielding cylinder is provided with fixed support.
As the preferred technical scheme of one, three grades of described shielding cylinders include first that ecto-entad is set with successively
Cascade screen cylinder, second level shielding cylinder and third level shielding cylinder, described first order shielding cylinder and described second level screen
Cover and between cylinder, be provided with two grades of stopping means, set between described second level shielding cylinder and described third level shielding cylinder
It is equipped with three grades of stopping means.
As the preferred technical scheme of one, described two grades of stopping means include being arranged on the shielding of the described first order
Positive stop on cylinder inwall, the outer wall of described second level shielding cylinder is installed with two grades of spacing rings；Institute
State the positive stop that three grades of stopping means include being arranged on the shielding cylinder inwall of the described second level, the described second level
Three grades of spacing rings it are installed with on the outer wall of shielding cylinder.
As the preferred technical scheme of one, described front door assembly includes the interior case lid of fixing connection and outer case lid,
The outer face of described outer case lid has flexibly connected Qianmen connecting plate, and the inner face of described outer case lid is provided with ring institute
Stating the big fairlead that interior case lid is arranged, the inner face of described interior case lid is provided with little fairlead and pallet stand,
Being provided with operating handle on the connecting plate of described Qianmen, described Qianmen connecting plate is connected with described pull-out guide.
As the preferred technical scheme of one, it is provided with adaptive between described Qianmen connecting plate and described outer case lid
Spring should be regulated.
As the preferred technical scheme of one, described pull-out guide includes being connected with described front door assembly
Two guide rods, described shielding cylinder is provided with the guide rod limited block coordinated with described guide rod.
As the preferred technical scheme of one, described front door assembly is provided with the line set excessively for cabling.
As the preferred technical scheme of one, described electric supply installation includes crossing line set and and external electrical through described
The USB line that source connects.
As the preferred technical scheme of one, described front door assembly is provided with the pressure coordinated with described shielding cylinder
Button.
Owing to have employed technique scheme, the low frequency radio frequency product testing system processed based on EMI, including
The third level shielding cylinder being set in together, one end closure of described shielding cylinder, the other end peace of described shielding cylinder
Equipped with can the front door assembly of pull, described front door assembly connects the test supporting plate extending in described shielding cylinder,
Test board is installed on described test supporting plate, described front door assembly is provided with the confession being connected with described test board
Electric installation；Between described front door assembly and described shielding cylinder, pull-out guide is installed；This utility model exists
Ultralow frequency range can provide superior shielding properties, it is ensured that when testing intrasonic product, not by outward
The interference of boundary's environment.
Accompanying drawing explanation
Fig. 1 is the structural representation of this utility model embodiment front door assembly；
Fig. 2 is the structural representation of this utility model embodiment shielding cylinder；
In figure: 11-first order shielding cylinder；12-second level shielding cylinder；13-third level shielding cylinder；21-bis-grades
Spacing ring；Tri-grades of spacing rings of 22-；3-fixed support；Case lid in 41-；The outer case lid of 42-；43-Qianmen connects
Plate；The big fairlead of 44-；The little fairlead of 45-；46-pallet stand；47-operating handle；48-crosses line set；51-
Test supporting plate；52-test board；53-USB line；61-guide rod；62-guide rod limited block；7-clinching.
Detailed description of the invention
Below in conjunction with the accompanying drawings and embodiment, this utility model is expanded on further.In the following detailed description,
Only by the way of explanation, describe some one exemplary embodiment of the present utility model.Undoubtedly, this area
Those of ordinary skill will be consequently realised that, in the case of without departing from spirit and scope of the present utility model, can
By with various different in the way of described embodiment is modified.Therefore, accompanying drawing and being described in substantially
It is illustrative rather than for limiting scope of the claims.
The low frequency radio frequency product testing system processed based on EMI, as in figure 2 it is shown, include being set in together
Three cascade screen cylinders, three grades of described shielding cylinders include the first order shielding cylinder 11, second that ecto-entad is set with successively
Cascade screen cylinder 12 and third level shielding cylinder 13, described first order shielding cylinder 11 and described second level shielding cylinder 12
Between be provided with two grades of stopping means, between described second level shielding cylinder 12 and described third level shielding cylinder 13
It is provided with three grades of stopping means；Described two grades of stopping means include being arranged on described first order shielding cylinder 11 inwall
On positive stop (not shown), the outer wall of described second level shielding cylinder 12 is installed with two grades
Spacing ring 21；Described three grades of stopping means include the limiting block being arranged on shielding cylinder 12 inwall of the described second level
Block (not shown), the outer wall of described second level shielding cylinder 12 is installed with three grades of spacing rings 22.
Fixed support 3 is installed on described shielding cylinder.
One end closure of described shielding cylinder, the other end of described shielding cylinder be provided with can the front door assembly of pull,
As it is shown in figure 1, described front door assembly includes interior case lid 41 and outer case lid 42, the described outer case lid of fixing connection
The outer face of 42 flexibly connected Qianmen connecting plate 43, described Qianmen connecting plate 43 and described outer case lid 42 it
Between Automatic adjusument spring (not shown) is installed, the inner face of described outer case lid 42 is provided with ring institute
Stating the big fairlead 44 that interior case lid 41 is arranged, big fairlead 44 coordinates with first order shielding cylinder 11, described interior
The inner face of case lid 41 is provided with little fairlead 45 and pallet stand 46, described little fairlead 45 and the second level
Shielding cylinder 12 coordinates, and described Qianmen connecting plate 43 is provided with operating handle 47, described Qianmen connecting plate 43
Connect and have pull-out guide；Described front door assembly connects the test supporting plate 51 extending in described shielding cylinder,
Described test supporting plate 51 is arranged on described pallet stand 46；It is provided with for cabling on described front door assembly
Cross line set 48, described line set of crossing 48 runs through described interior case lid 41 and described outer case lid 42.Described test torr
Test board 52 is installed on plate 51, described front door assembly is provided with the power supply being connected with described test board 52
Device, described electric supply installation includes crossing line set 48 and the USB line 53 being connected with external power source through described；
Pull-out guide, described pull-out guide are installed between described front door assembly and described shielding cylinder
Including two guide rods 61 being connected with described front door assembly, described shielding cylinder is provided with and described guide rod 61
The guide rod limited block 62 coordinated, is provided with linear bearing between described guide rod 61 and described guide rod limited block 62
(not shown).
The clinching 7 coordinated with described shielding cylinder is installed on the outer case lid 42 of described front door assembly.
This utility model uses full manual mode, manually gives pulling force by operating handle 47 and makes guide rod with thrust
61 do linear motion in linear bearing realizes the opening and closing of front door assembly.
This utility model has an advantage that
(1) coordinate to realize linear motion by linear bearing and guide rod 61 and then realize opening of front door assembly
Close.
(2) use the mode that spring is inlayed to realize flexible company of the outer case lid 42 of Qianmen chain connecting plate and shielded box
Connect, then coordinated with first order shielding cylinder 11 by the big fairlead 44 on front door assembly, and little fairlead
45 coordinate with second level shielding cylinder 12, finally realize the closedown of the uniform consolidation of front door assembly.
(3) front door assembly is designed with two case lids, and in order to realize dual shield protection, and outer case lid 42 closes
During conjunction, between outer case lid 42 and first order shielding cylinder 11, design has been placed with finger-type shell fragment and can make shield effectiveness
More preferably.
(4) use buckle to replace traditional door lock, make structure entirety become more attractive in appearance and operate more
Convenient.
(5) three cascade screen cylinders are all to use iron-nickel alloy welding fabrication so that at intrasonic (20Hz-150KHz)
There is higher shielding properties.
(6) structure of drum type brake is used to make shielding properties higher, and convenient Guan Bi.
(7) use the mode of three layers of cylinder superposition to form shielding cylinder, be allowed to constitute three layers of shielding protection,
Make shield effectiveness more preferably.
(8) using unique support to fix shielding cylinder, simple in construction, debugging is convenient.
(9) each communication data interface all uses EMI filtering mode, makes shield effectiveness be greatly improved.
Shielding cylinder be utilize conduction or permeability magnetic material to make shell, plate, the variously-shaped shield such as set,
Be electromagnetic capability is limited in certain space in the range of be used for suppressing radiation interference, and conduction and radiation are carried out
Process to realize providing glitch-free test environment to tested wireless telecommunications system.Manual-lock shielding cylinder gate,
Connect USB2.0 and D/C power interface, start to test determinand, after having tested, manual unlocking shielding cylinder
Gate, now USB2.0 and D/C power are already off, and operation terminates.
Of the present utility model ultimate principle, principal character and of the present utility model excellent have more than been shown and described
Point.Skilled person will appreciate that of the industry, this utility model is not restricted to the described embodiments, above-mentioned reality
Execute and principle of the present utility model is simply described, without departing from this utility model spirit described in example and description
On the premise of scope, this utility model also has various changes and modifications, and these changes and improvements both fall within
In the range of claimed this utility model.This utility model claims scope by appending claims
And equivalent defines.
Claims (10)
1. the low frequency radio frequency product testing system processed based on EMI, it is characterized in that: include the three cascade screen cylinders being set in together, one end closure of described shielding cylinder, the other end of described shielding cylinder is provided with can the front door assembly of pull, described front door assembly connects the test supporting plate extending in described shielding cylinder, test board is installed on described test supporting plate, described front door assembly is provided with the electric supply installation being connected with described test board；Between described front door assembly and described shielding cylinder, pull-out guide is installed.
2. the low frequency radio frequency product testing system processed based on EMI as claimed in claim 1, it is characterised in that: on described shielding cylinder, fixed support is installed.
3. the low frequency radio frequency product testing system processed based on EMI as claimed in claim 1, it is characterized in that: three grades of described shielding cylinders include first order shielding cylinder, second level shielding cylinder and the third level shielding cylinder that ecto-entad is set with successively, it is provided with two grades of stopping means between described first order shielding cylinder and described second level shielding cylinder, between described second level shielding cylinder and described third level shielding cylinder, is provided with three grades of stopping means.
4. the low frequency radio frequency product testing system processed based on EMI as claimed in claim 3, it is characterized in that: described two grades of stopping means include the positive stop being arranged on described first order shielding cylinder inwall, and the outer wall of described second level shielding cylinder is installed with two grades of spacing rings；Described three grades of stopping means include the positive stop being arranged on the shielding cylinder inwall of the described second level, and the outer wall of described second level shielding cylinder is installed with three grades of spacing rings.
5. the low frequency radio frequency product testing system processed based on EMI as claimed in claim 1, it is characterized in that: described front door assembly includes the interior case lid of fixing connection and outer case lid, the outer face of described outer case lid has flexibly connected Qianmen connecting plate, the inner face of described outer case lid is provided with the big fairlead that in described in ring, case lid is arranged, the inner face of described interior case lid is provided with little fairlead and pallet stand, being provided with operating handle on the connecting plate of described Qianmen, described Qianmen connecting plate is connected with described pull-out guide.
6. the low frequency radio frequency product testing system processed based on EMI as claimed in claim 5, it is characterised in that: between described Qianmen connecting plate and described outer case lid, Automatic adjusument spring is installed.
7. the low frequency radio frequency product testing system processed based on EMI as claimed in claim 1, it is characterised in that: described pull-out guide includes two guide rods being connected with described front door assembly, and described shielding cylinder is provided with the guide rod limited block coordinated with described guide rod.
8. the low frequency radio frequency product testing system processed based on EMI as claimed in claim 1, it is characterised in that: it is provided with the line set excessively for cabling on described front door assembly.
9. the low frequency radio frequency product testing system processed based on EMI as claimed in claim 8, it is characterised in that: described electric supply installation includes crossing line set and the USB line being connected with external power source through described.
10. the low frequency radio frequency product testing system processed based on EMI as claimed in claim 1, it is characterised in that: the clinching coordinated with described shielding cylinder is installed on described front door assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620255776.2U CN205720330U (en) | 2016-03-30 | 2016-03-30 | The low frequency radio frequency product testing system processed based on EMI |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620255776.2U CN205720330U (en) | 2016-03-30 | 2016-03-30 | The low frequency radio frequency product testing system processed based on EMI |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205720330U true CN205720330U (en) | 2016-11-23 |
Family
ID=57311984
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620255776.2U Active CN205720330U (en) | 2016-03-30 | 2016-03-30 | The low frequency radio frequency product testing system processed based on EMI |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205720330U (en) |
-
2016
- 2016-03-30 CN CN201620255776.2U patent/CN205720330U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 519000 Xiangzhou, Zhuhai, Futian Road, No. 10, building No. 1, on the first floor of -1, on the ground floor, building two or three, four Patentee after: Zhuhai Bojie electronic Limited by Share Ltd Address before: 519000 Xiangzhou, Zhuhai, Futian Road, No. 10, building No. 1, on the first floor of -1, on the ground floor, building two or three, four Patentee before: Zhuhai Bojay Electronics Co., Ltd. |