CN105050373B - The double-deck moisture-proof electromagnetic shielding box - Google Patents
The double-deck moisture-proof electromagnetic shielding box Download PDFInfo
- Publication number
- CN105050373B CN105050373B CN201510586469.2A CN201510586469A CN105050373B CN 105050373 B CN105050373 B CN 105050373B CN 201510586469 A CN201510586469 A CN 201510586469A CN 105050373 B CN105050373 B CN 105050373B
- Authority
- CN
- China
- Prior art keywords
- box body
- layer box
- moisture
- layer
- shield door
- 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.)
- Active
Links
Landscapes
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Abstract
The present invention provides a kind of moisture-proof electromagnetic shielding boxes of bilayer, are related to shielding device field, the moisture-proof electromagnetic shielding box of bilayer includes interior layer box body and outer-layer box body；Insulation and moisture material is filled between the outer-layer box body and the interior layer box body；The outer-layer box body front and rear sides are respectively arranged with two outer shield doors, four outer shield doors up and down and are detachably connected with the outer-layer box body；More waveguides are mounted on underlying two outer shield doors；Side wall in front of the interior layer box body is provided with an internal layer shield door and Duo Gen waveguide；The more waveguides are located at below the internal layer shield door；Setting is equipped with more waveguides on the inner shield door of lower section there are two internal layer shield door on the side wall at the interior layer box body rear；The internal layer box house is provided with multilayer insulating panel.The moisture-proof electromagnetic shielding box of bilayer of the application, it is poor to solve shielded box dampproof effect in the prior art, the bad technical problem of internal insulation effect.
Description
Technical field
The present invention relates to shielding device fields, more particularly, to a kind of moisture-proof electromagnetic shielding box of bilayer.
Background technique
Waveguide is the pipe of a kind of metal catheter or interior metallisation hollow, inner wall is very bright and clean；Waveguide is used to
Uhf electromagnetic wave is transmitted, destination can be sent to minimum loss by its pulse signal；Waveguide bore it is big
It is small different because of the wavelength of transmitted signal；It is chiefly used in the radio such as centimetre radio communication for involving millimeter wave, radar, navigation neck
Domain.It common are rectangular waveguide, circular waveguide, semicircular waveguide, ku waveguide, radar waveguide and light wave at present
Conduit.
Shielded box is that electromagnetic capability is limited in one using shield of various shapes made of conductive or permeability magnetic material
Determine in spatial dimension, for inhibiting the metallic object of radiation interference.And conduction and radiation are handled, to realize to tested wireless
Communication apparatus provides the equipment of glitch-free test environment.It is primarily adapted for use in radio communication product test, such as: mobile phone, wireless network
The test of the Related products such as card, wireless data card, wireless router, WIFI.
Manual shielded box, pneumatic shielded box, full-automatic shielded box can be divided into according to different test requests.
1, manual shielded box operation is convenient.The equipment that the equipment such as testing mobile phone, notebook, PAD have corresponding size.It is applicable in
In mechanisms such as research and development, test, certifications.
2, pneumatic shielded box is chiefly used in production test, improves testing efficiency and reduces the feeling of fatigue of operator.It surveys
The equipment that the equipment such as trial work machine, notebook, PAD have corresponding size.
3, full-automatic shielded box by international standard RS-232 interface according to communication instruction to test shielded box controlled come
Entire test process is completed, generally to Miniature RF module, extensive producing line uses when production, improves production efficiency.
For radio communication product production firm, product cannot appear on the market in time or upper amount bring is big volume production rapidly
The loss of value and profit.Directly affect the expansion of follow-up business and the market share.
Radio frequency testing technique is usually the most complicated, the maximum process of influence in the wireless telecommunications class equipment producing line such as mobile phone,
The generally also bottleneck of producing line.Radio frequency testing station is usually made of several parts such as test instrumentation, shielded box, test software, usually
Several classes of calibration test, integration test, antenna measurement etc. can be divided into again.Due to the requirement of production capacity, usual radio frequency testing technique by
Multiple identical testing stations are run parallel.The percent of pass of some or certain test stations is relatively low；Output reduction will lead to producing line
Bottleneck, production cost increase severely, and to find out its cause, being broadly divided into: the problem of product design or material reason, test, (accidentally surveys and asks
Topic), the environmental factors such as radio frequency interference, test uncertain problem.
Electromagnetic interference/EMI is the problem that entire electronic field must face and overcome, generally in radio communication product
Such as: mobile phone, wireless network card, wireless router, wireless headset, bluetooth headset, wi-fi, wimax, data card, intercom,
RFID etc. wireless telecommunications class equipment and wireless telecommunications generic module etc. are all by using penetrating during carrying out plate survey, surveying eventually
Frequency test shielded box tests environment to improve.
Traditional shielded box is all single layer designs, and dampproof effect is poor, and internal insulation effect is bad.
Based on this, the present invention provides a kind of moisture-proof electromagnetic shielding boxes of bilayer to solve above-mentioned technical problem.
Summary of the invention
The purpose of the present invention is to provide a kind of moisture-proof electromagnetic shielding boxes of bilayer, anti-to solve shielded box in the prior art
Damp effect is poor, the bad technical problem of internal insulation effect.
A kind of moisture-proof electromagnetic shielding box of bilayer, the moisture-proof electromagnetic shielding box of bilayer are provided in an embodiment of the present invention
Including interior layer box body and outer-layer box body, the interior layer box body is located in the outer-layer box body；
Insulation and moisture material is filled between the outer-layer box body and the interior layer box body；The outer-layer box body front and rear sides
Two outer shield doors, four outer shield doors up and down are respectively arranged with to be detachably connected with the outer-layer box body；Position
In being mounted on more waveguides on two outer shield doors of lower section；
Side wall in front of the interior layer box body is provided with an internal layer shield door and Duo Gen waveguide, the internal layer shield door
It is detachably connected with the interior layer box body；The more waveguides are located at below the internal layer shield door；After the interior layer box body
There are two internal layer shield doors, two internal layer shield doors to be detachably connected with the interior layer box body for setting on the side wall of side,
More waveguides are installed on the underlying inner shield door；
The internal layer box house is provided with multilayer insulating panel.
Optionally, it is connected with instrument fixing piece in the layer frame structure, is used for retainer instrument.
Optionally, the instrument fixing piece is rectangle frame, and one end of the rectangle frame and the partition are affixed.
Optionally, the interior layer box body surrounding is fixed with column, and the partition is slidably connected with the column.
Optionally, be connected on the inside of the outer shield door and abut block made of insulating materials, the abutting block with lean on
The close internal layer shield door abuts.
Optionally, the outer shield door and the outer-layer box body are clamped；The internal layer shield door and the interior layer box body
Clamping.
Optionally, the outer shield door also passes through bolt and the outer-layer box body is affixed.
Optionally, all waveguides on the moisture-proof electromagnetic shielding box of bilayer are mounted on metal blind cover.
Optionally, hanging ring is installed, the bottom of the outer-layer box body is provided with support leg at the top of the outer-layer box body.
Optionally, the barrier material uses polyvinyl chloride panel.
Two layer box bodies are arranged in the moisture-proof electromagnetic shielding box of bilayer provided by the invention, inside and outside double shield layer are formed, in institute
The barrier material for being provided with insulation between interior layer box body and the outer-layer box body is stated, humidity is avoided and is insulated.
The outer-layer box body front-back is respectively mounted two sets of outer shield doors up and down, is designed as instrument inlet and outlet above
With, below for installation waveguide it is effective.Waveguide in the outer-layer box body can integrally be removed with the outer shield door, be convenient for
User's operation uses.One set of shield door is installed before the interior layer box body, two sets of shield doors is installed down behind internal layer, sets above
It is calculated as instrumentation mouth, is designed as waveguide installation door-plate below.The more waveguides of interior layer box body are mounted below
The underlying shield door on, can integrally be removed with shield door.
The moisture-proof electromagnetic shielding box of bilayer provided by the invention, there is no conductions between interior layer box body and outer-layer box body body
Tie point, interlayer middle berth are set up defences damp insulating materials, make have good insulation performance between interior external shielding layer, it may have brilliant
Humidity resistance, can be effectively isolated free surrounding space electromagnetic interference and ground potential variation influences instrument and equipment bring, guarantees
Indoor electronic, electrical equipment work normally.
Based on this, the present invention has dampproof effect good, the good advantage of internal insulation effect compared with original technology.
Detailed description of the invention
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art be briefly described, it is clear that, it is described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, is also possible to obtain other drawings based on these drawings.
Fig. 1 is outer-layer box body structural schematic diagram；
Fig. 2 is the structural schematic diagram of internal layer cabinet front；
Fig. 3 is internal layer shielded box schematic diagram of internal structure (for convenience of observing, outer-layer box body is splitted).
Appended drawing reference:
Layer box body in 1-；2- outer-layer box body；3- outer shield door；
4- internal layer shield door；5- waveguide；6- partition；
7- instrument fixing piece；8- buckle；9- hanging ring；
10- support leg；11- insulation and moisture material.
Specific embodiment
Technical solution of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation
Example is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill
Personnel's every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation,
It is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.In addition, term " first ", " second ",
" third " is used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or the connection of one；It can
To be mechanical connection, it is also possible to electric welding connection；It can be directly connected, can also indirectly connected through an intermediary, it can be with
It is the connection inside two elements.For the ordinary skill in the art, it can understand that above-mentioned term exists with concrete condition
Concrete meaning in the present invention.
Embodiment one
As shown in Figure 1-3, a kind of moisture-proof electromagnetic shielding box of bilayer is provided in the present embodiment, the moisture-proof electromagnetism of bilayer
Shielded box includes interior layer box body 1 and outer-layer box body 2, and the interior layer box body 1 is located in the outer-layer box body 2；Preferably, described outer
2 body bottom of layer box body is installed by ground terminal.Preferably, interior layer box body 1 and outer-layer box body 2 are welded using 2mm thickness galvanized steel plain sheet
It forms, moving part assembles beryllium-bronze finger-type reed, forms complete faraday cup structure.
Insulation and moisture material 11 is filled between the outer-layer box body 2 and the interior layer box body 1；Preferably use polychlorostyrene second
Alkene material, pvc material have good moisture resistance and insulation characterisitic.Under the premise of proof strength and insulation performance, rationally
It is laid out insulating materials, achievees the purpose that control weight by reducing insulating materials laying area.
2 front and rear sides of outer-layer box body are respectively arranged with two outer shield doors 3 up and down, four outer shield doors
3 are detachably connected with the outer-layer box body 2；More waveguides are mounted on underlying two outer shield doors 3
Pipe 5；
The side wall in 1 front of interior layer box body is provided with an internal layer shield door 4 and Duo Gen waveguide 5, the internal layer screen
Door 4 is covered to be detachably connected with the interior layer box body 1；The more waveguides 5 are located at 4 lower section of internal layer shield door；In described
Setting is there are two internal layer shield door 4 on the side wall at 1 rear of layer box body, two internal layer shield doors 4 with the interior layer box body 1
It is detachably connected, more waveguides 5 is installed on the underlying inner shield door；
The interior layer box body 1 is internally provided with multilayer insulating panel 6.
Preferably, the interior layer box body 1 and the outer-layer box body 2 are respectively in the outer shield door 3 and the internal layer screen
It covers and is laid with complete polyvinyl chloride plate at 4 surrounding gap of door, as shield gasket item, enclosed air space prevents from using
Object, which is fallen into, in journey leads to decreasing insulating.Further, moisture-proof glue is also equipped with around four outer shield doors 3
Item prevents humid air from entering.
Two layer box bodies are arranged in the moisture-proof electromagnetic shielding box of bilayer provided by the invention, inside and outside double shield layer are formed, in institute
It states and is provided with insulation and moisture material 11 between interior layer box body 1 and the outer-layer box body 2, avoid humidity and insulate.
2 front-back of outer-layer box body is respectively mounted two sets of outer shield doors 3 up and down, is designed as instrument inlet and outlet above
With, below for installation waveguide 5 use.Waveguide 5 in the outer-layer box body 2 can be removed with the outer shield door 3 is whole,
Use convenient for the user to operate.One set of shield door is installed before the interior layer box body 1, installs down two sets of shield doors behind internal layer,
It is designed as instrumentation mouth above, is designed as 5 installation door-plate of waveguide below.The more waveguides 5 of interior layer box body 1 are pacified
On the subsequent underlying shield door, can integrally it be removed with shield door.
The moisture-proof electromagnetic shielding box of bilayer provided by the invention, there is no lead between 2 body of interior layer box body 1 and outer-layer box body
Be electrically connected contact, and interlayer middle berth is set up defences damp insulating materials 11, makes have good insulation performance between interior external shielding layer, it may have tall and erect
Humidity resistance more, can be effectively isolated free surrounding space electromagnetic interference and ground potential variation influences instrument and equipment bring,
Guarantee that indoor electronic, electrical equipment work normally.Add under 1000V voltage condition, ectonexine insulation resistance >=100M Ω.
Based on this, the present invention has dampproof effect good, the good advantage of internal insulation effect compared with original technology.
Such as Fig. 3, in the optinal plan of the present embodiment, it is connected with instrument fixing piece 7 in the layer frame structure, is used for fixer
Device.
By the fixed frame, the instrument of placement is fixed, prevents shielded box interior instrument in the case where shaking working environment
Equipment is subjected to displacement or because vibration causes to damage.
Further, the instrument fixing piece 7 is rectangle frame, and one end of the rectangle frame and the partition 6 are affixed.
Rectangle frame is easy to process, is also convenient for fixing, is easy to industrial realization.Preferably, it is fixed using bolt, fixation side
Just.
In the optinal plan of the present embodiment, interior 1 surrounding of layer box body is fixed with column, the partition 6 and the column
It is slidably connected.
The partition 6 and the column are slidably connected, can up and down adjustment partition 6 as needed position, so as to adjust layer
Height meets the requirement for placing instrument.
In the optinal plan of the present embodiment, the inside of the outer shield door 3, which is connected with, abuts block made of insulating materials,
The abutting block is abutted with the close internal layer shield door 4.
The insulation of one protrusion of installation abuts block on the inside of 3 door-plate of outer shield door, should when outer shield door 3 is closed
Collets can resist internal layer shield door 4, prevent it from falling off because of vibration.
Such as Fig. 1, in the optinal plan of the present embodiment, the outer shield door 3 is clamped with the outer-layer box body 2；In described
Layer shield door 4 and the interior layer box body 1 are clamped.
The mode of clamping is easy to disassemble, uses simple, the saving disassembly and installation time.
Further, the outer shield door 3 is also affixed by bolt and the outer-layer box body 2.
In 3 left and right directions of outer layer shield door welding buckle 8, shield door and doorframe can be mechanically fixed, be prevented using bolt
Only because vibration causes door-plate to fall off.
In the optinal plan of the present embodiment, all waveguides 5 on the moisture-proof electromagnetic shielding box of bilayer are mounted on gold
Belong to blind cover.
All waveguides 5 of inside and outside layer box body 2 assemble metal blind cover, and shielding Seal treatment can be done when unused.
Preferably, the more waveguides 5 in the outer-layer box body 2 include the internal diameter >=φ 50mm that can be docked with KF50
The waveguide 5, these waveguides 5 are located on the outer shield door 3 of the above and below of the outer-layer box body 2,
It is provided with KF50 vacuum flange interface and blind cover structure on these waveguides 5, amounts to 11.
The more waveguides 5 in the outer-layer box body 2, which further include 2, to be docked with ISO-K-100 vacuum pipe, interior
Diameter is the waveguide 5 of 100mm, this two waveguides 5 are located on the outer shield door 3 of 2 front of outer-layer box body, top
It is provided with ISO-K100 vacuum flange interface and blind cover structure；
Electromagnetic shielding box design has 5 interface of multiple groups different size waveguide, and 2 waveguide 5 of outer-layer box body is respectively mounted and shields
It covers on door, can integrally be removed with shield door, use convenient for the user to operate.Interior 1 front waveguide 5 of layer box body is mounted on internal layer screen
On the tank wall for covering 4 lower section of door, rear portion waveguide 5 is installed on shield door, can integrally be removed with shield door.
5 internal diameter of the more waveguides on the interior 1 front side wall of layer box body is 30mm, counts 24；
5 internal diameter of the more waveguides on the interior layer box body 1 internal layer shield door 4 described below is 50mm, meter
10.
Such as Fig. 1, in the optinal plan of the present embodiment, the top of the outer-layer box body 2 is equipped with hanging ring 9, convenient for utilizing row
The equipment integral hoisting such as vehicle；The bottom of the outer-layer box body 2 is provided with support leg 10, facilitates forklift operator.
Preferably, stiffening plate is welded in 10 side of support leg, reserves 10mm screw hole among stiffening plate, user can be used
10mm expansion bolt fixes cabinet and ground.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its according to
So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into
Row equivalent replacement；And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (7)
1. a kind of moisture-proof electromagnetic shielding box of bilayer, which is characterized in that including interior layer box body and outer-layer box body, the interior layer box body position
In in the outer-layer box body；
Insulation and moisture material is filled between the outer-layer box body and the interior layer box body；The outer-layer box body front and rear sides difference
Two outer shield doors, four outer shield doors up and down are provided with to be detachably connected with the outer-layer box body；Under being located at
More waveguides are mounted on two outer shield doors of side；
Side wall in front of the interior layer box body is provided with an internal layer shield door and Duo Gen waveguide, the internal layer shield door and institute
Interior layer box body is stated to be detachably connected；The more waveguides are located at below the internal layer shield door；The interior layer box body rear
There are two internal layer shield doors, two internal layer shield doors to be detachably connected, be located at the interior layer box body for setting on side wall
More waveguides are installed on the internal layer shield door of lower section；
The internal layer box house is provided with multilayer insulating panel；
It is connected with instrument fixing piece on the multilayer insulating panel, is used for retainer instrument；
The instrument fixing piece is rectangle frame, and one end of the rectangle frame and the partition are affixed；
The interior layer box body surrounding is fixed with column, and the partition is slidably connected with the column.
2. the moisture-proof electromagnetic shielding box of bilayer according to claim 1, which is characterized in that the inside of the outer shield door is solid
It is connected to and abuts block made of insulating materials, the abutting block is abutted with the close internal layer shield door.
3. the moisture-proof electromagnetic shielding box of bilayer according to claim 1, which is characterized in that the outer shield door and described outer
Layer box body clamping；The internal layer shield door and the interior layer box body are clamped.
4. the moisture-proof electromagnetic shielding box of bilayer according to claim 3, which is characterized in that the outer shield door also passes through spiral shell
Bolt and the outer-layer box body are affixed.
5. the moisture-proof electromagnetic shielding box of bilayer according to claim 1, which is characterized in that the moisture-proof electromagnetic shielding box of bilayer
On all waveguides be mounted on metal blind cover.
6. the moisture-proof electromagnetic shielding box of bilayer according to claim 1, which is characterized in that install at the top of the outer-layer box body
There is hanging ring, the bottom of the outer-layer box body is provided with support leg.
7. the moisture-proof electromagnetic shielding box of bilayer according to claim 1-6, which is characterized in that the barrier material is adopted
Use polyvinyl chloride panel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510586469.2A CN105050373B (en) | 2015-09-15 | 2015-09-15 | The double-deck moisture-proof electromagnetic shielding box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510586469.2A CN105050373B (en) | 2015-09-15 | 2015-09-15 | The double-deck moisture-proof electromagnetic shielding box |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105050373A CN105050373A (en) | 2015-11-11 |
| CN105050373B true CN105050373B (en) | 2019-05-07 |
Family
ID=54456430
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510586469.2A Active CN105050373B (en) | 2015-09-15 | 2015-09-15 | The double-deck moisture-proof electromagnetic shielding box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105050373B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109511256A (en) * | 2018-12-21 | 2019-03-22 | 安徽伟天机电设备有限公司 | A kind of means for anti-jamming of electromagnetic direct-drive device |
| CN110799028B (en) * | 2019-10-14 | 2020-10-16 | 江西清华泰豪三波电机有限公司 | Can splice double-deck shield cover |
| CN110972427B (en) * | 2019-12-12 | 2021-04-27 | 珠海格力电器股份有限公司 | Case suitable for complex environment |
| CN113498283A (en) * | 2020-04-07 | 2021-10-12 | 南京南瑞继保电气有限公司 | Signal acquisition box for series compensation device |
| CN117915646B (en) * | 2024-03-19 | 2024-05-17 | 常州华明电子设备有限公司 | Double-layer full-welded dampproof shielding box |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2438296Y (en) * | 2000-08-10 | 2001-07-04 | 熊智 | Electromagnetic information leakage proventing cabinet |
| JP3878399B2 (en) * | 2000-08-31 | 2007-02-07 | 肇 村崎 | Electromagnetic wave shielding structure |
| CN204335212U (en) * | 2015-01-16 | 2015-05-13 | 王振鹏 | A kind of electromagnetic shielding rack |
| CN204578969U (en) * | 2015-04-09 | 2015-08-19 | 苏州鸿特达电子科技有限公司 | Multi-level electromagnetic shielding system |
-
2015
- 2015-09-15 CN CN201510586469.2A patent/CN105050373B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2438296Y (en) * | 2000-08-10 | 2001-07-04 | 熊智 | Electromagnetic information leakage proventing cabinet |
| JP3878399B2 (en) * | 2000-08-31 | 2007-02-07 | 肇 村崎 | Electromagnetic wave shielding structure |
| CN204335212U (en) * | 2015-01-16 | 2015-05-13 | 王振鹏 | A kind of electromagnetic shielding rack |
| CN204578969U (en) * | 2015-04-09 | 2015-08-19 | 苏州鸿特达电子科技有限公司 | Multi-level electromagnetic shielding system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105050373A (en) | 2015-11-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105050373B (en) | The double-deck moisture-proof electromagnetic shielding box | |
| CN110190914B (en) | Shielding device for testing anti-interference satellite receiver of aircraft | |
| CN204462286U (en) | Between a kind of emc testing | |
| CN102866376B (en) | Entity gas insulated switchgear (GIS) evaluation test platform of local discharging ultrahigh-frequency detection device | |
| CN207074229U (en) | Copper bar type current in wire on-Line Monitor Device | |
| CN107356825A (en) | A kind of disc insulator model surface charge detecting device | |
| CN101428242A (en) | Cleaning chamber | |
| CN102955091A (en) | Method for testing and evaluating low frequency shielding efficiency of shielding square cabin under condition of complete cabin | |
| CN106940405A (en) | A kind of micro-wave screening takes shield effectiveness test system | |
| CN106018892B (en) | A kind of GIS gas-insulated switchgear superfrequency test screening arrangement | |
| CN210610201U (en) | Electromagnetic wave shield, building material with electromagnetic wave shield, and article with electromagnetic wave shield | |
| CN206196248U (en) | Double shielding case | |
| CN206710611U (en) | Antenna for base station attitude measurement system | |
| CN106291279A (en) | A kind of system and method eliminating external disturbance based on omnidirectional's UHF noise transducer | |
| CN103701077B (en) | A kind of shielded anechoic chamber threader | |
| CN107275759A (en) | Antenna assembly and electronic equipment | |
| CN206743253U (en) | A kind of wireless test and the device for being easy to convert built-in aerial | |
| CN108200755A (en) | A kind of double layer screen case | |
| CN204258067U (en) | A kind of power distribution cabinet with electro-magnetic screen function | |
| CN207869598U (en) | 5G tests shielded box | |
| CN206671428U (en) | A kind of micro-wave screening takes shield effectiveness test system | |
| CN109239470A (en) | A kind of screened room of draw and insert-type more switching test system | |
| CN102955092A (en) | Antenna layout method for low frequency shielding effectiveness test in separate space environment of shielding cavity | |
| CN101242032A (en) | Module type antenna structure | |
| CN202837525U (en) | Entity GIS evaluation test platform of partial discharge ultra-high frequency detection device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |