CN207703967U - A kind of electromagnetic interference trouble-shooter - Google Patents
A kind of electromagnetic interference trouble-shooter Download PDFInfo
- Publication number
- CN207703967U CN207703967U CN201721911441.2U CN201721911441U CN207703967U CN 207703967 U CN207703967 U CN 207703967U CN 201721911441 U CN201721911441 U CN 201721911441U CN 207703967 U CN207703967 U CN 207703967U
- Authority
- CN
- China
- Prior art keywords
- plug
- tap
- module plug
- input
- filter
- 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
Abstract
The utility model relates to electromagnetism fault diagnosis field, more particularly to a kind of electromagnetic interference trouble-shooter, including at least channel box body, middle part in the box body of channel is connected with shielding multi-tap, shielding multi-tap will be divided into the output cavity of the input cavity and right side in left side in the box body of channel, in input cavity body input terminal connecting terminal block is connected with shielding multi-tap input terminal, in output cavity body output end wiring terminal block is connected with shielding multi-tap output end, it is connected to respectively with external cable by input terminal hollow screw rod and output end hollow screw rod on the both ends side wall of channel box body, it is plugged with module plug-in on shielding multi-tap, one end of module plug-in and shielding multi-tap plug surface is provided with input plug, the other end is provided with output plug.
Description
Technical field
The utility model relates to electromagnetism fault diagnosis field, and in particular to a kind of electromagnetic interference trouble-shooter.
Background technology
With the fast development that the circuit height of information electronic device is integrated, the miniaturization of Complex Electronic Systems Based at
For reality：The controller that a large amount of control rack has been miniaturized substitutes, more outgoing cables on cabinet are then by controller
One or a few cable replacement, from physically seeing that the structure of system is greatly simplified really.But from the connection of circuit
From the point of view of relationship, the signal transmission issues of system interconnection cable but become more prominent：The outgoing cable quantity of control rack is more, often
Core wire quantity in root cable is smaller, prevailing transmission same type signal, only power supply, number bus signal, digital-to-analog control
One or two kinds of combinations of signal, pulsed power signal, level signal etc.；Although and the controller outgoing cable quantity minimized
It is few, but the core wire quantity in every cable is big, it is few then several, at most tens, even up to a hundred, cable transmission polymorphic type is believed
Number, predominantly power supply, several groups of number bus signal, digital-to-analog control signal, pulsed power signal, level signal etc.
It closes or all combines, since the frequency domain character of all kinds of core wires is different, the Conduction Interference of all types of core wires becomes since line-line couples
It is increasingly complex.The electromagnetic interference of system is mainly the Conduction Interference of the external outgoing cable of circuit unit, is based on system electromagnetic interference
This feature be unfolded fault diagnosis：The EMI conduction of the transmission cable of control rack/radiation interference analysis can be in only individual electricity
Road unit transmission line is disconnected, and under remaining most of circuit unit normal running conditions, disconnects each cable and cabinet one by one
Connection can determine that interference is related with which root cable and circuit unit；And the controller minimized breaks since number of cables is small
Open one or a few, most of circuit units of system can not just work, therefore, simply plug and unplug cable can only determine it is dry
It disturbs related with the cable and correlation unit, interference can not be navigated to which specific root core wire and interlock circuit unit.Conventional examines
Disconnected method is to core wire concatenated filter, by the demolition, installation filter to these core wires again and again, and to core wire shielded layer
Shielding with connector shell overlaps, although final also can determine that interference position and measures to rectify and reform, since the process is multiple
Core wire dismounts, that is, takes and be easy error, and especially shielding connection is almost unable to get consistency control, and test verification is unable to get
The measure guarantee of consistency, entire positioning and the implementation of rectification process are electromagnetic compatibility engineer's urgent problems to be solved.
The utility model is fixed for EMI conduction/radiation interference suitable for Complex Electronic Systems Based polymorphic type signal-transmitting cable
Interference, can be navigated to specific core wire and interlock circuit list by position, analysis, the self-defined type mask filter component of signal solved
Member, and EMC Design/Scheme of Strengthening of optimization, the utility model are provided to interlock circuit unit lead-out wire port
It is adapted to EMI conduction/radiation interference positioning, analysis, the solution of general electronic system, single type signal-transmitting cable, the reality
It is interfered in the external transmitting of EMC test room with the novel electronic system that applies also for（CE102, RE102, the industry/people are marked by army
Mark conduction interference, radiation disturbance etc.）CS/RS susceptibilitys, industry/people's mark immunity to interference analysis are marked with army, is also applied for electronic system
Analysis of EMC Problems at operation scene.The utility model only to cable core wire carry out primary shielding multi-tap dismounting,
The shielding of shielded layer and connector shell overlaps, and can be realized by quick-change module plug-in unit.The electricity of system is greatly reduced
Magnetic is compatible with the fault diagnosis period, to improve the fault diagnosis of electronic system and the efficiency of solution.
Utility model content
The utility model overcomes the deficiencies in the prior art, provides a kind of suitable for electronic system field of electromagnetic compatibility
EMI is tested, the trouble-shooter of EMI conduction/radiation interference positioning, analysis for polymorphic type signal combination of transmitted cable,
Especially a kind of electromagnetic interference trouble-shooter and application method.
Following technical scheme may be used to realize in the technical issues of the utility model is solved：
A kind of electromagnetic interference trouble-shooter includes at least channel box body, it is characterized in that：Middle part in the box body of channel connects
It is connected to shielding multi-tap, shielding multi-tap will be divided into the output cavity of the input cavity and right side in left side in the box body of channel,
Input cavity body is interior to be connected with input terminal connecting terminal block with shielding multi-tap input terminal, and output cavity body is interior and shields multi-tap
Output end is connected with output end wiring terminal block, passes through input terminal hollow screw rod and output respectively on the both ends side wall of channel box body
End hollow screw rod is connected to external cable, is shielded and is plugged with module plug-in on multi-tap, and module plug-in is inserted with shielding switching
One end of seat plug surface is provided with input plug, and the other end is provided with output plug.
It is connected separately with input cavity cover board and output cavity cover board on the input cavity and output cavity, it is described defeated
Enter to hold to be sequentially connected on hollow screw rod for cable shield 360 ° of conductions on input terminal hollow screw rod overlapped input terminal screen
Layer installation part and input terminal shielded layer locking nut are covered, is sequentially connected on output end hollow screw rod and is being exported for cable shield
Hold 360 ° of conductions overlapped output end shielded layer installation part and output end shielded layer locking nut on hollow screw rod.
The shielding multi-tap is plugged with three groups of module plug-ins, and shielding multi-tap is close to input cavity and output cavity
Lock is fixedly connected on the side wall of body, module plug-in is locked with after shielding multi-tap grafting by latching.
The module plug-in is one kind in filter module plug-in unit or straight-through card module, filter module plug-in unit and straight-through
Card module shape is identical, and filter circuit, the inside of straight-through module plug-in unit are both provided with to every route inside filter module plug-in unit
The equal filtering free circuit of every route, be directly connected to by conducting wire between the input plug and output plug of straight-through module plug-in unit.
The filter module plug-in unit concrete type is power-supply filter, number bus traffic filter, digital control letter
Number filter, analog control signal control filter, pulsed power signal filter, level signal filter.
The channel box body and module plug-in is made of the structural metallic materials of well conducting.
A kind of electromagnetic interference trouble-shooter further includes at least four, is set up in parallel between 4 devices.
The utility model has the beneficial effects that：
Compared with prior art, the utility model close to control by when carrying out cable line fault diagnosis, first setting
The cable that standby end will be analyzed disconnects, and one end of cable is connected on across input terminal hollow screw rod on input terminal connecting terminal block,
The other end of cable is connected on across output end hollow screw rod in output end wiring terminal block again, shields the module on multi-tap
Then plug-in unit is turned by input plug and output plug and shielding multi-tap grafting according to replacement shielding the problem of different circuits
The type of the module plug-in of grafting carries out the electromagnetic interference fault diagnosis of cable run on combination hub, is reduced using the device and is
In the electromagnetic compatibility fault diagnosis period of system, improve the fault diagnosis of electronic system and the efficiency of solution.
Description of the drawings
The utility model is further illustrated with reference to the accompanying drawings and examples.
Fig. 1 is the single device structural schematic diagram of the utility model.
Fig. 2 is the individual module dongle configuration schematic diagram of the utility model.
Fig. 3 is multiple devices combination dimensional structure diagram of the utility model.
Fig. 4 is multiple device combinational circuit schematic diagrams of the utility model.
In figure：1, module plug-in；2, input terminal shielded layer locking nut；3, input terminal shielded layer installation part；4, input terminal
Hollow screw rod；5, cavity cover board is inputted；6, input terminal connecting terminal block；7, multi-tap is shielded；8, it latches；9, output end wiring
Terminal block；10, output end hollow screw rod；11, output end shielded layer installation part；12, output end shielded layer locking nut；13, defeated
Go out cavity cover board.
Specific implementation mode
Embodiment 1:
Referring to Fig.1, a kind of electromagnetic interference trouble-shooter, includes at least channel box body, and the middle part in the box body of channel connects
It is connected to shielding multi-tap 7, shielding multi-tap 7 will be divided into the output cavity of the input cavity and right side in left side in the box body of channel
Body is connected with input terminal connecting terminal block 6 in input cavity body with shielding 7 input terminal of multi-tap, turns with shielding in output cavity body
7 output end of combination hub is connected with output end wiring terminal block 9, passes through input terminal hollow spiral shell respectively on the both ends side wall of channel box body
Bar 4 and output end hollow screw rod 10 are connected to external cable, are shielded and are plugged with module plug-in 1, module plug-in on multi-tap 7
1 is provided with input plug with the one end for shielding 7 plug surface of multi-tap, and the other end is provided with output plug.
In actual use：When carrying out cable line fault diagnosis, first in the cable that will be analyzed close to control device end
It disconnects, one end of cable is connected on across input terminal hollow screw rod 4 on input terminal connecting terminal block 6, then by the other end of cable
It is connected in output end wiring terminal block 9 across output end hollow screw rod 10, shields the module plug-in 1 on multi-tap 7 by defeated
Enter plug and output plug and shielding 7 grafting of multi-tap, is then shielded on multi-tap 7 according to replacement the problem of different circuits
The type of the module plug-in 1 of grafting carries out the electromagnetic interference fault diagnosis of cable run, and the electricity of system is reduced using the device
Magnetic is compatible with the fault diagnosis period, improves the fault diagnosis of electronic system and the efficiency of solution.
Embodiment 2:
Referring to Fig.1, compared with Example 1, the present embodiment the difference is that：The input cavity and output cavity
On be connected separately with input cavity cover board 5 and output cavity cover board 13, be sequentially connected for electricity on the input terminal hollow screw rod 4
Cable shielded layer 360 ° of conductions overlapped input terminal shielded layer installation part 3 and input terminal shielded layer lock on input terminal hollow screw rod 4
Tight nut 2 is sequentially connected for cable shield 360 ° of conductions on output end hollow screw rod 10 on output end hollow screw rod 10
Overlapped output end shielded layer installation part 11 and output end shielded layer locking nut 12.
In actual use：Input cavity cover board 5 and output cavity cover board are increased separately on input cavity and output cavity
13, so that the connecting line of 7 inside input terminal connecting terminal block 6 of shielding multi-tap is carried out shielding isolation, on input terminal hollow screw rod 4
Input terminal shielded layer installation part 3 and input terminal shielded layer locking nut 2 are sequentially connected for cable shield in input terminal hollow
360 ° of conductions overlap on screw rod 4, and output end shielded layer installation part 11 and output end screen are sequentially connected on output end hollow screw rod 10
Covering layer locking nut 12,360 ° of conductions on output end hollow screw rod 10 overlap for cable shield, use the structure connectivity
By force, it carries out accurate when electromagnetic interference fault diagnosis.
Embodiment 3:
Referring to Figures 1 and 2, compared with Example 1, the present embodiment the difference is that：The shielding switching is inserted
Seat 7 is plugged with three groups of module plug-ins 1, is fixedly connected on the close input cavity of shielding multi-tap 7 and the side wall for exporting cavity
There is lock 8, passing through lock 8 after module plug-in 1 and shielding 7 grafting of multi-tap locks.
In actual use：Three groups of module plug-ins 1 are set on shielding multi-tap 7, different module plug-ins 1 can be replaced
Electromagnetic interference fault diagnosis in detection cable, module plug-in 1 be plugged on shielding multi-tap 7 after by lock 8 by module
Plug-in unit 1 is locked with shielding multi-tap 7, good using the structure locking effect, and module plug-in 1 will not be on shielding multi-tap 7
It slides.
Embodiment 4:
Compared with Example 1, the present embodiment the difference is that：The module plug-in 1 be filter module plug-in unit or
One kind in straight-through card module, filter module plug-in unit is identical with straight-through card module shape, to every inside filter module plug-in unit
Route is both provided with filter circuit, the equal filtering free circuit of every route of the inside of straight-through module plug-in unit, straight-through module plug-in unit it is defeated
Enter and is directly connected to by conducting wire between plug and output plug；The filter module plug-in unit concrete type be power-supply filter,
Number bus traffic filter, digital controlled signal filter, analog control signal control filter, pulsed power signal filtering
Device, level signal filter.
In actual use：Module can be replaced when carrying out the electromagnetic interference fault diagnosis of cable according to different situations to insert
The problem of type of part 1 carrys out detection cable, by change the outfit straight-through module plug-in unit and filter module plug-in unit record as a result, then will
Forward and backward test result comparison can quickly determine that influence of the interference of which root cable to system is the largest, which root cable is done
It is minimum to disturb to the influence of system, to propose optimal solution to system, and rationally reduces the cost of engineering measure,
And the type of module plug-in 1 can be power-supply filter, number bus traffic filter, digital controlled signal filter, simulation
Control signal control filter, pulsed power signal filter, level signal filter.
Embodiment 5:
Compared with Example 1, the present embodiment the difference is that：The channel box body and module plug-in 1 is by leading
The good structural metallic materials of electricity is made.
In actual use：Channel box body and module plug-in 1 be made of the structural metallic materials of well conducting ensure that into
Ductility, electric conductivity, the thermal conductivity of whole device are good when row cable electromagnetic interference fault diagnosis, ensure that electromagnetic interference failure is examined
Accuracy when disconnected.
Embodiment 6:
Compared with Example 1, the present embodiment the difference is that：A kind of electromagnetic interference trouble-shooter,
Further include at least four, is set up in parallel between 4 devices.
In actual use：It can disposably be detected together to four cables after being connected with each other between 4 devices, by 4
A device changes the outfit straight-through module plug-in unit and to be compared by the forward and backward test result of the filter module plug-in unit that changes the outfit, and quickly determines which root
Influence of the interference of cable to system is the largest, influence of the interference of which root cable to system is minimum to be carried to system
Go out optimal solution, and rationally reduce the cost of engineering measure, also improves fault diagnosis and the solution of electronic system
Efficiency.
Embodiment 7:
With reference to Fig. 3 and Fig. 4, a kind of application method of electromagnetic interference trouble-shooter, including step in detail below：
The first step：First four cable cores analyzing will needed to be each turned off close to control device end, then by 4 devices
Input terminal and output end connect access the cut-off point of each cable core respectively, every cable core corresponds to a channel box body；
Second step：The channel 1 of first cable and trouble-shooter is connected：Cable one end core wire passes through input terminal empty
Core screw rod 4 is connected to input terminal connecting terminal block 6, then uses input terminal shielded layer installation part 3, input terminal shielded layer locking nut 2
360 ° of conductions of shielded layer of cable are overlapped on input terminal hollow screw rod 4；The other end core wire of cable passes through output end hollow
10 output end of screw rod is connected to connecting terminal block 9, then output end shielded layer installation part 11, output end shielded layer locking nut 12
360 ° of conductions of shielded layer of cable are overlapped on input terminal hollow screw rod 10；Input terminal connecting terminal block 6 and output end wiring
It is fixed that the signal of terminal block 9 presses filter module plug-in unit AP1, module plug-in AP2, module plug-in AP3 module pins in circuit diagram
Justice；
Third walks：The channel 2 of second cable and trouble-shooter connects：The phase of specific steps and first cable
Together, mating filter module plug-in unit is module plug-in AP4, module plug-in AP5, module plug-in AP6；
4th step：The channel 3 of third root cable and trouble-shooter connects：The phase of specific steps and first cable
Together, mating filter module plug-in unit is module plug-in AP7, module plug-in AP8, module plug-in AP9；
5th step：The channel 4 of 4th cable and trouble-shooter connects：The phase of specific steps and first cable
Together, mating filter module plug-in unit is module plug-in AP10, module plug-in AP11, module plug-in AP12；
6th step：It is positioning with analytic process, only need to replace cable pair in the seriation type products of filter module
Answer module plug-in AP1, module plug-in AP2, module plug-in AP3, module plug-in AP4, module plug-in AP5, the module plug-in in channel
AP6, module plug-in AP7, module plug-in AP8, module plug-in AP9, module plug-in AP10, module plug-in AP11 or module plug-in
AP12 can fast implement the fault diagnosis of cable, analysis.
Embodiment 8:
Compared with Example 7, the present embodiment the difference is that：In the channel, filter module can not taken
Straight-through module plug-in unit can be used when plug-in unit.
In actual use：Filtering can not be used when carrying out the electromagnetic interference fault diagnosis of cable during actual use
It can be replaced using straight-through module plug-in unit when module plug-in.
The embodiment of the utility model is described in detail above in conjunction with attached drawing, but the utility model is not limited to
The above embodiment can also not depart from the utility model within the knowledge of a person skilled in the art
Various changes can be made under the premise of objective, all in the protection domain of the technology.
Claims (7)
1. a kind of electromagnetic interference trouble-shooter includes at least channel box body, it is characterized in that：Middle part connection in the box body of channel
There is shielding multi-tap（7）, shield multi-tap（7）The output cavity of the input cavity and right side in left side will be divided into the box body of channel
Body, input cavity body is interior and shields multi-tap（7）Input terminal is connected with input terminal connecting terminal block（6）, output cavity body is interior and shields
Cover multi-tap（7）Output end is connected with output end wiring terminal block（9）, pass through input respectively on the both ends side wall of channel box body
Hold hollow screw rod（4）With output end hollow screw rod（10）It is connected to external cable, shields multi-tap（7）On be plugged with module
Plug-in unit（1）, module plug-in（1）With shielding multi-tap（7）One end of plug surface is provided with input plug, and the other end is provided with defeated
Go out plug.
2. a kind of electromagnetic interference trouble-shooter according to claim 1, it is characterized in that：The input cavity and defeated
Go out on cavity to be connected separately with input cavity cover board（5）With output cavity cover board（13）, the input terminal hollow screw rod（4）On according to
Secondary connection is for cable shield in input terminal hollow screw rod（4）Upper 360 ° of conductions overlapped input terminal shielded layer installation part（3）
With input terminal shielded layer locking nut（2）, output end hollow screw rod（10）On be sequentially connected for cable shield in output end
Hollow screw rod（10）Upper 360 ° of conductions overlapped output end shielded layer installation part（11）With output end shielded layer locking nut（12）.
3. a kind of electromagnetic interference trouble-shooter according to claim 1, it is characterized in that：The shielding multi-tap
（7）It is plugged with three groups of module plug-ins（1）, shield multi-tap（7）It is fixed on the side wall of input cavity and output cavity
It is connected with lock（8）, module plug-in（1）With shielding multi-tap（7）Pass through lock after grafting（8）Locking.
4. a kind of electromagnetic interference trouble-shooter according to claim 1, it is characterized in that：The module plug-in（1）
For one kind in filter module plug-in unit or straight-through card module, filter module plug-in unit is identical with straight-through card module shape, filtering
Filter circuit is both provided with to every route inside module plug-in, the equal filtering free circuit of every route of the inside of straight-through module plug-in unit,
It is directly connected to by conducting wire between the input plug and output plug of straight-through module plug-in unit.
5. a kind of electromagnetic interference trouble-shooter according to claim 4, it is characterized in that：The filter module plug-in unit
Concrete type is power-supply filter, number bus traffic filter, digital controlled signal filter, analog control signal control filter
Wave device, pulsed power signal filter, level signal filter.
6. a kind of electromagnetic interference trouble-shooter according to claim 1, it is characterized in that：The channel box body and mould
Block plug-in unit（1）It is made of the structural metallic materials of well conducting.
7. a kind of electromagnetic interference trouble-shooter, it is characterized in that：It further include any one of at least four such as claim 1~6
The device is set up in parallel between 4 devices.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721911441.2U CN207703967U (en) | 2017-12-30 | 2017-12-30 | A kind of electromagnetic interference trouble-shooter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721911441.2U CN207703967U (en) | 2017-12-30 | 2017-12-30 | A kind of electromagnetic interference trouble-shooter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207703967U true CN207703967U (en) | 2018-08-07 |
Family
ID=63030657
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721911441.2U Active CN207703967U (en) | 2017-12-30 | 2017-12-30 | A kind of electromagnetic interference trouble-shooter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207703967U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107884684A (en) * | 2017-12-30 | 2018-04-06 | 西安开容电子技术有限责任公司 | A kind of electromagnetic interference trouble-shooter and application method |
-
2017
- 2017-12-30 CN CN201721911441.2U patent/CN207703967U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107884684A (en) * | 2017-12-30 | 2018-04-06 | 西安开容电子技术有限责任公司 | A kind of electromagnetic interference trouble-shooter and application method |
| CN107884684B (en) * | 2017-12-30 | 2023-12-15 | 西安开容电子技术有限责任公司 | Electromagnetic interference fault diagnosis device and use method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105160172B (en) | A kind of method of determining GIS intelligent substations component ports electromagnetic disturbance | |
| CN107741563B (en) | Test platform suitable for relay protection device | |
| Li et al. | Measurement-based modeling and worst-case estimation of crosstalk inside an aircraft cable connector | |
| CN207703967U (en) | A kind of electromagnetic interference trouble-shooter | |
| CN104238371A (en) | Portable electric system digital simulation instrument | |
| CN109406897A (en) | Detection device and detection method | |
| CN104537261B (en) | A kind of containing through circuit interference predicting method in cable cabinet based on field circuit method | |
| CN107884684A (en) | A kind of electromagnetic interference trouble-shooter and application method | |
| CN108152779A (en) | Electronic current mutual inductor check system and method | |
| CN110888011B (en) | In-situ test method and test device based on testability modeling | |
| CN104105388B (en) | A kind of electromagnetic shielding system of measurement ICU | |
| CN104539591A (en) | Multi-protocol bus control device | |
| CN208477096U (en) | Electronic current mutual inductor field calibration system | |
| CN207038883U (en) | A kind of field layer I/O device quick-replaceable interface switching device | |
| CN113533893A (en) | Multistage measurement system for transient electromagnetic disturbance of electric intelligent equipment | |
| CN207946512U (en) | Electronic current mutual inductor check system | |
| CN104617540B (en) | The small-sized protective relaying device used suitable for outdoor installation | |
| CN105372580B (en) | A kind of test device of operational amplifier | |
| CN104699903B (en) | A kind of intelligent substation secondary signal transmission system apparatus for evaluating and method | |
| CN104678147B (en) | A kind of computational methods for Maximum Contact voltage in gas insulated transformer substation | |
| CN102759674B (en) | Universal adapter for testing optocouplers | |
| Li et al. | Integrated research on power distribution intelligent switching equipment | |
| CN207853456U (en) | A kind of high voltage transmission line line protection device | |
| CN207301779U (en) | A kind of industrial bus I/O module | |
| CN215986299U (en) | Multistage measurement system for transient electromagnetic disturbance of electric intelligent equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |