CN208367106U - A kind of multipurpose assembly type electromagnetic shielding test box - Google Patents
A kind of multipurpose assembly type electromagnetic shielding test box Download PDFInfo
- Publication number
- CN208367106U CN208367106U CN201820518428.9U CN201820518428U CN208367106U CN 208367106 U CN208367106 U CN 208367106U CN 201820518428 U CN201820518428 U CN 201820518428U CN 208367106 U CN208367106 U CN 208367106U
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- CN
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- Prior art keywords
- cabinet
- assembly type
- test box
- electromagnetically shielded
- type according
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Abstract
It includes cabinet that the utility model, which provides a kind of multipurpose assembly type electromagnetic shielding test box,；The cabinet includes six faces being detachably connected, and every two face overlapping part installs shielding gasket, increases the electrical conductivity between two faces, improves shield effectiveness；Shield door is offered in the leading flank of the cabinet；Waveguide window is offered in the top surface of the cabinet；Power-supply filter and data-signal transmission filter and optical fiber waveguides in conjunction are provided on the cabinet left side or right side；It is mounted with power-supply filter and traffic filter on shielding case body, guarantees that internal unit and the external world communicate and when electricity consumption, will not introduce other electromagnetic interferences；Each face of the utility model cabinet is assembled using detachable structure, and has both the Electro Magnetic Compatibility test of equipment and shielding properties two functions of test of certain material.
Description
Technical field
The utility model relates to electromangnetic spectrum fields, and in particular to a kind of multipurpose assembly type electromagnetic shielding test
Case.
Background technique
Electromagnetic wave is the major way that electromagnetic energy is propagated, when high-frequency circuit works, the outside radiated electromagnetic wave of meeting, to neighbouring
Other equipment generate interference.On the other hand, the various electromagnetic waves in space can also sense in circuit, interfere to circuit.
The effect of electromagnetic shielding is turned off electromagnetic wave propagation approach, to eliminate interference.Solving electromagnetic interference problem
Many means in, electromagnetic shielding is most basic and effective.
Shielding test box is to mask electromagnetic interference signal using shield made of conductive or permeability magnetic material, made to shield
It covers and keeps clean electromagnetic environment in case, to provide good test environment to equipment under test.
Shielding test box generally uses the machining of sheet metal solder bond, mould punching to combine machining at present,
Product outline size under this production method is fixed, it is difficult to the requirement for meeting more specifications, multi items, when using welding manner,
It also will affect appearance, and welding defect is more, easily cause signals leakiness.
And the Electro Magnetic Compatibility that current shielding test box can only carry out equipment is tested, and is had a single function, can not be into
The test of the shielding properties parameter of row certain material.
Utility model content
In order to solve the above technical problems, the utility model provides a kind of multipurpose assembly type electromagnetic shielding test box.Case
Each face of body is assembled using detachable structure, and has both the shielding of the Electro Magnetic Compatibility test and certain material of equipment
Two functions can be tested.
The utility model be overcome above-mentioned technological deficiency the technical solution adopted is as follows:
The utility model includes cabinet；The cabinet includes six faces being detachably connected, every two face overlapping part peace
Shielding gasket is filled, the electrical conductivity between two faces is increased, improves shield effectiveness；Shielding is offered in the leading flank of the cabinet
Door；Since equipment under test may distribute biggish heat at work, need to be aerated under the high temperature conditions, described
The top surface of cabinet offers waveguide window, has both been able to satisfy the demand of ventilation, moreover it is possible to meet the function of electromagnetic shielding；On the left of the cabinet
Power-supply filter and data-signal transmission filter and optical fiber waveguides in conjunction are provided on face or right side.Six of the cabinet
Face is by being removably bolted, and preferably self-locking bolt connects.In carrying out experimentation, measured object has with the external world
Power supply connection and signal connection, power supply and signal element will cause electromagnetic interference, therefore be mounted with that power supply is filtered on shielding case body
Wave device and traffic filter guarantee that internal unit and the external world communicate and when electricity consumption, will not introduce other electromagnetic interferences.
It further, further include the pressing plate that test sample index is imitated for measuring screen.
Further, the waveguide window is equipped with the small cut-off waveguide beam that section is hexagon.The waveguide window is steel
Waveguide window, the small cut-off waveguide beam is multiple small cut-off waveguides compositions, while making that air keeps circulation in shielded box,
The brightness that ensure that inner space, the connecting mode for leading window and cabinet is also bolt-connection, can be convenient installation.
Further, the optical fiber waveguides in conjunction is the metal catheter hollow, inner wall is bright and clean, according to actual test equipment
Need can be set the optical fiber waveguides in conjunction of respective numbers, optical fiber waveguides in conjunction is used for the disengaging of optical fiber, makes signal with minimum loss
It is transmitted.
Further, described shield door one end and cabinet are hinged, and shield door includes the doorjamb of surrounding, and doorjamb is located at case
Opening before body, shield door can around hinge rotation, the hinge on cabinet includes the flap of upper hinge plate and lower part, screen
The articulation piece being equipped on door with the cooperation of chest hinge plate is covered, instrument connection is provided in the middle part of shield door, shielding is provided on instrument connection
Cover board, the shielding cover board are pressed on instrument connection by screw rod.
Further, each face of the cabinet is template made of galvanized steel plain sheet bending.
Further, the shield door is sealed using reed, and reed is beallon reed.It can not only guarantee to shield
Cover the shielding index of case, and since it is with high resistance relaxation force and wearability, can satisfy shield door frequently open and
The demand of closure.
Further, the tank floor installs four castors, and two are the universal wheel that can be braked, other two is fixed
To wheel.
Further, handle is provided on the shield door.
The utility model has the following technical effect that
The utility model cabinet is dismountable modular construction, and each face overlapping part installs shielding gasket, increases two
The electrical conductivity in a face improves shield effectiveness, and this connection type solderless contact, avoid because pad it is excessive caused by
Signals leakiness；
Closed shielding box structure is formed by using the cabinet and shield door of metal material, tested product is placed in
In shielded box, it can be ensured that the isolation of signal and cabinet external signal in case, so as to meet the shielding of tested product requirement
Efficiency.Furthermore this shielded box can also be used to test the shield effectiveness of certain material, remove when shielding cover board, by test specimen
It is fixed on the opening of shield door, instead of shielding cover board, the experiment of measured piece screen effect can be measured, realizes one case and is mostly used.
Detailed description of the invention
Attached drawing 1 is 1 structural schematic diagram of the utility model embodiment；
Attached drawing 2 is 2 structural schematic diagram of the utility model embodiment.
In attached drawing: 1- cabinet；2- shield door；3- waveguide window；4- castor；5- optical fiber waveguides in conjunction；6- hinge；7- screening cover
Plate；8- power-supply filter 9- data signal transmission filter；10- pressing plate；11- screen imitates tested exemplar.
Specific embodiment
The technical solution of the utility model is further elaborated below in conjunction with drawings and examples.
Embodiment 1:
As shown in Figure 1, the utility model includes cabinet 1；The cabinet 1 includes six faces of self-locking bolt connection, often
A face is template made of galvanized steel plain sheet bending, and every two face overlapping part installs shielding gasket, increases leading between two faces
Electrostrictive coefficient improves shield effectiveness；Shield door 2 is offered in the leading flank of the cabinet 1；Since equipment under test at work may
Biggish heat is distributed, therefore needs to be aerated under the high temperature conditions, offers waveguide window 3 in the top surface of the cabinet 1, both
It is able to satisfy the demand of ventilation, moreover it is possible to meet the function of electromagnetic shielding；Power supply filter is provided on 1 left side of cabinet or right side
Wave device 8 and data-signal transmission filter 9 and optical fiber waveguides in conjunction 5.In carrying out experimentation, there is power supply in measured object and the external world
Connection and signal connection, power supply and signal original part will cause electromagnetic interference, therefore power-supply filter is mounted on shielding case body
And traffic filter, guarantee that internal unit and the external world communicate and when electricity consumption, will not introduce other electromagnetic interferences.
The waveguide window 3 is equipped with the small cut-off waveguide beam that section is hexagon.The waveguide window 3 is the waveguide of steel
Window, the small cut-off waveguide beam are that multiple small cut-off waveguide compositions ensure that while making air holding circulation in shielded box
The brightness of inner space, the connecting mode for leading window and cabinet is also bolt-connection, can be convenient installation.
The optical fiber waveguides in conjunction 5 is hollow, metal catheter that inner wall is bright and clean, can be with according to the needs of actual test equipment
The optical fiber waveguides in conjunction of respective numbers is set, and optical fiber waveguides in conjunction 5 is used for the disengaging of optical fiber, transmits signal with minimum loss.
Described 2 one end of shield door and cabinet 1 are hinged, and shield door 2 includes the doorjamb of surrounding, and doorjamb is located at before cabinet
Opening, and it is hinged with cabinet 1, shield door 2 can around hinge 6 rotate, the hinge on cabinet 1 includes upper hinge plate and lower part
Flap, the articulation piece with the cooperation of 1 flap of cabinet is also installed on shield door 2, instrument connection is provided in the middle part of shield door 2, surveys
Shielding cover board 7 is provided on prospect hole, the shielding cover board 7 is pressed on instrument connection by screw rod.
The shield door 2 is sealed using reed, and reed is beallon reed.It can not guarantee the screen of shielded box
Index is covered, and since it is with high resistance relaxation force and wearability, can satisfy the need that shield door is frequently opened and is closed
It asks.
Four castors 4 are installed in 1 bottom surface of cabinet, and two, front is the universal wheel that can be braked, other two is orientation
Wheel；Handle is provided on the shield door 2.
The present embodiment use process is as follows:
Tested product need to be only placed in cabinet 1 by the present embodiment at this time for using as common shielded box, will
Shielding cover board 7 is mounted on the test mouth of shield door 2.
Embodiment 2:
The present embodiment further include for measure screen effect test sample index pressing plate 10, remaining structure with 1 phase of embodiment
Together.
The present embodiment use process is as follows:
When carrying out screen effect test experiments, shielding cover board 7 is torn open for carrying out shielding material screen effect test experiments for the present embodiment
Get off, screen imitated into the test mouth that tested exemplar 11 is installed on shield door, pressing plate 10 is then pressed in screen and imitates tested 11 outside of exemplar,
And it is fixed with clamp nut.
The foregoing description of the disclosed embodiments can be realized professional and technical personnel in the field or using originally practical new
Type.Various modifications to these embodiments will be readily apparent to those skilled in the art, and determine herein
The General Principle of justice can be realized in other embodiments without departing from the spirit or scope of the present utility model.Cause
This, the present invention will not be limited to the embodiments shown herein, and is to fit to and principles disclosed herein
The widest scope consistent with features of novelty.
Claims (9)
1. a kind of multipurpose assembly type is electromagnetically shielded test box, it is characterised in that: it includes cabinet (1)；The cabinet (1) includes
Six faces being detachably connected, every two face overlapping part install shielding gasket；Screen is offered in the leading flank of the cabinet (1)
Cover door (2)；The top surface of the cabinet (1) offers waveguide window (3)；Electricity is provided on cabinet (1) left side or right side
Source filter (8) and data-signal transmission filter (9) and optical fiber waveguides in conjunction (5).
2. a kind of multipurpose assembly type according to claim 1 is electromagnetically shielded test box, it is characterised in that: further include being used for
The pressing plate (10) of measurement screen effect test sample (11) index.
3. a kind of multipurpose assembly type according to claim 1 is electromagnetically shielded test box, it is characterised in that: the waveguide window
(3) it is equipped with the small cut-off waveguide beam that section is hexagon.
4. a kind of multipurpose assembly type according to claim 1 is electromagnetically shielded test box, it is characterised in that: the optical fiber wave
Conduit (5) is the metal catheter hollow, inner wall is bright and clean.
5. a kind of multipurpose assembly type according to claim 1 is electromagnetically shielded test box, it is characterised in that: the shield door
(2) one end and cabinet (1) hingedly, are provided with instrument connection in the middle part of shield door (2), shielding cover board (7), the screen are provided on instrument connection
Cover board (7) is covered to be pressed on instrument connection by screw rod.
6. a kind of multipurpose assembly type according to claim 1 is electromagnetically shielded test box, it is characterised in that: the cabinet
(1) each face is template made of galvanized steel plain sheet bending.
7. a kind of multipurpose assembly type according to claim 1 is electromagnetically shielded test box, it is characterised in that: the shield door
(2) it is sealed using reed, reed is beallon reed.
8. a kind of multipurpose assembly type according to claim 1 is electromagnetically shielded test box, it is characterised in that: the cabinet
(1) four castors (4) are installed in bottom surface, and two are the universal wheel that can be braked, other two is directional wheel.
9. a kind of multipurpose assembly type according to claim 1 is electromagnetically shielded test box, it is characterised in that: the shield door
(2) handle is provided on.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820518428.9U CN208367106U (en) | 2018-04-12 | 2018-04-12 | A kind of multipurpose assembly type electromagnetic shielding test box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820518428.9U CN208367106U (en) | 2018-04-12 | 2018-04-12 | A kind of multipurpose assembly type electromagnetic shielding test box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208367106U true CN208367106U (en) | 2019-01-11 |
Family
ID=64923554
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820518428.9U Expired - Fee Related CN208367106U (en) | 2018-04-12 | 2018-04-12 | A kind of multipurpose assembly type electromagnetic shielding test box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208367106U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112804025A (en) * | 2019-11-14 | 2021-05-14 | Oppo广东移动通信有限公司 | Electromagnetic shielding room and communication system |
| CN113068386A (en) * | 2021-03-18 | 2021-07-02 | 中国船舶重工集团公司第七二五研究所 | Electrochemical test environment noise shielding device |
| CN113419074A (en) * | 2021-06-18 | 2021-09-21 | 北京卫星环境工程研究所 | Disc type book switching system |
| CN114019251A (en) * | 2021-11-03 | 2022-02-08 | 株洲菲斯罗克光电科技股份有限公司 | Magnetic shielding detector |
-
2018
- 2018-04-12 CN CN201820518428.9U patent/CN208367106U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112804025A (en) * | 2019-11-14 | 2021-05-14 | Oppo广东移动通信有限公司 | Electromagnetic shielding room and communication system |
| CN112804025B (en) * | 2019-11-14 | 2024-02-20 | Oppo广东移动通信有限公司 | Electromagnetic shielding room and communication system |
| CN113068386A (en) * | 2021-03-18 | 2021-07-02 | 中国船舶重工集团公司第七二五研究所 | Electrochemical test environment noise shielding device |
| CN113419074A (en) * | 2021-06-18 | 2021-09-21 | 北京卫星环境工程研究所 | Disc type book switching system |
| CN113419074B (en) * | 2021-06-18 | 2022-03-01 | 北京卫星环境工程研究所 | Disc type book switching system |
| CN114019251A (en) * | 2021-11-03 | 2022-02-08 | 株洲菲斯罗克光电科技股份有限公司 | Magnetic shielding detector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190111 |