CN109444579A - A kind of cable static Discharge Simulation device - Google Patents
A kind of cable static Discharge Simulation device Download PDFInfo
- Publication number
- CN109444579A CN109444579A CN201811294599.9A CN201811294599A CN109444579A CN 109444579 A CN109444579 A CN 109444579A CN 201811294599 A CN201811294599 A CN 201811294599A CN 109444579 A CN109444579 A CN 109444579A
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- China
- Prior art keywords
- cable
- static discharge
- circuit unit
- simulation device
- relay
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Electric Properties And Detecting Electric Faults (AREA)
Abstract
A kind of cable static Discharge Simulation device of the present invention, comprising: high-voltage relay, for controlling the external dc high voltage power supply input cable equivalent circuit of the high input voltage interface connection of simulator；Cable equivalent circuit unit, for the external dc high voltage power supply according to input charge and charging complete after static discharge and export analog waveform；Radio-frequency relay exports the analog waveform of cable equivalent circuit unit output to the output port of simulator for controlling；Control circuit unit, for respectively to high-voltage relay, radio-frequency relay connection or interruption control.The present invention can export the waveform of dummycable static discharge, can be used for carrying out electrostatic discharge susceptivity detection to CA cable assembly, while simplifying operating process, also achieve the miniaturization of device.
Description
Technical field
The invention belongs to electrical equipment technical fields, are related to a kind of cable static Discharge Simulation device.
Background technique
Cable is electrical connection, signal transmission an indispensable part between all kinds of device instrument modules.Production, transport,
Assemble and use etc. in links, cable is rubbed, drag, stretch drag, a large amount of electrostatic charges on induction band, cause cable and ground electricity
Higher potential difference between position, equipment current potential.Cable it is close, contact and connection device port when will cause static discharge, i.e.,
Cable static electric discharge event.Injection is connected equipment by generated pulse current, causes electrostatic impact to the electronic device flowed through,
And then it may cause functions of the equipments sexual abnormality, device damage and even damage.
Relevant electrostatic sensitivity device needs to carry out its electrostatic discharge susceptivity using Discharge Switch of ESD Simulator in production appearance link
Detection, to need the electrostatic protection measure taken and its grade to provide foundation.If not accurate enough without detection or testing result,
It may can lead to electrostatic damage because safeguard procedures are improper in use, cause serious consequence.However currently on the market
Discharge Switch of ESD Simulator be based on static electricity on human body's model, electrification device static electric charge model or machine static electric charge model, there is no for electricity
The cable discharge simulator of cable electro static discharge characteristic.However these old xerographic papers can not describe well cable static puts
The correlation properties of electric event: there is high resistance measurement ingredient in these three models, and cable itself resistance value is very low, this will lead to
There to be higher electric current to burst in interface unit during cable discharge；To be proportional to cable long for equivalent capacity over the ground for cable
Degree, therefore the long cable actually used has biggish capacitance；Cable discharge waveform generally has quick rising edge of a pulse, and
With the reforming phenomena of polarity reversion.In the burst length being exceedingly fast, will lead to cable static electric discharge can be very high with instantaneous relase
Power, to generate grave danger to load device.Lack targetedly cable static Discharge Simulation device in the market, so that cable
The electrostatic discharge susceptivity detection of component exists certain insufficient.
Summary of the invention
Problems to be solved by the invention are to solve to lack targetedly cable static Discharge Simulation device in the prior art, are made
The problem of obtaining the electrostatic discharge susceptivity detection Shortcomings of CA cable assembly.
Technological means for solving project is that the present invention proposes a kind of cable static Discharge Simulation device, can export mould
The waveform of quasi- cable static electric discharge, for carrying out electrostatic discharge susceptivity detection to CA cable assembly, cable static Discharge Simulation device can be with
Substitute charging cable output cable Electrostatic discharge waveforms.
The present invention proposes a kind of cable static Discharge Simulation device, comprising:
High-voltage relay, for controlling the external dc high voltage power supply input electricity of the high input voltage interface connection of simulator
Cable equivalent circuit；
Cable equivalent circuit unit, for the external dc high voltage power supply according to input charge and charging complete after
It carries out static discharge and exports analog waveform；
Radio-frequency relay exports the analog waveform of cable equivalent circuit unit output to the output of simulator for controlling
Port；
Control circuit unit, for respectively to high-voltage relay, radio-frequency relay connection or interruption control.
Further, as a preferred technical solution of the present invention: the cable equivalent circuit unit is by several electricity
It is in series that cable simulates infinitesimal circuit.
Further, as a preferred technical solution of the present invention: each cable emulation infinitesimal circuit includes electricity
Sense and capacitor, wherein capacitor is parallel to one end of inductance.
Further, as a preferred technical solution of the present invention: the quantity of the cable emulation infinitesimal circuit is 100
It is a.
Further, as a preferred technical solution of the present invention: the control circuit unit includes two input terminals
Mouth and two key switches, two of them input port is separately connected the external dc power of different voltages and two keys are opened
Pass is separately connected high-voltage relay, radio-frequency relay.
Further, as a preferred technical solution of the present invention: the control circuit unit further includes being separately connected
Two instruction portable lamps of two key switches.
Further, as a preferred technical solution of the present invention: the output port of the simulator is connect using BNC
Head.
Invention effect are as follows:
Cable static Discharge Simulation device of the invention, has filled up the blank of cable static simulator.Utilize cable infinitesimal electricity
Cable equivalent circuit is set up on road, is charged using high-voltage relay control external dc high voltage power supply to cable equivalent circuit, later
Static discharge is carried out with the cable equivalent circuit that radio-frequency relay control has been charged and exports waveform.
Cable static Discharge Simulation device of the invention can substitute charging cable output cable Electrostatic discharge waveforms, simplify behaviour
While making process, the miniaturization of device is also achieved.
The occasion of cable static Discharge Simulation device application of the invention is to import the discharge current under different charging voltages
Whether cable under test component there is abnormal or damage according to cable under test component, and detection judges the electrostatic discharge susceptivity of the component.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of cable static Discharge Simulation device of the present invention.
Fig. 2 is cable equivalent circuit cellular construction schematic diagram in the present invention.
Specific embodiment
Hereinafter, being described in detail based on attached drawing for the present invention.
As shown in Figure 1, the present invention devises a kind of cable static Discharge Simulation device, specifically include: high-voltage relay, cable
Equivalent circuit unit, radio-frequency relay and control circuit unit.Wherein, the high input voltage interface of simulator is connected to high-voltage relay
One end of device, the input terminal of the other end connecting cable equivalent circuit unit of high-voltage relay；The cable equivalent circuit unit
Output end be connected to one end of radio-frequency relay, the output port of the other end connection simulator of radio-frequency relay；Also, it controls
Circuit unit processed is separately connected high-voltage relay and radio-frequency relay.
Wherein, the high-voltage relay, for controlling the external dc high pressure of the high input voltage interface connection of simulator
Power input cable equivalent circuit；The cable equivalent circuit unit, for being carried out according to the external dc high voltage power supply of input
Static discharge is carried out after charging and charging complete and exports analog waveform；The radio-frequency relay, for controlling cable etc.
The analog waveform of effect circuit unit output is exported to the output port of simulator；The control circuit unit, for respectively to height
Potential relay, the connection of radio-frequency relay or interruption are controlled.
Preferably, the cable equivalent circuit unit is in series by several cable emulation infinitesimal circuits, so that each electricity
It is connected in series between cable simulation infinitesimal circuit；Further, the quantity of the cable emulation infinitesimal circuit is 100, embodies 1 meter
The electrostatic electrology characteristic of long single-core cable can store electric energy and be discharged again.Wherein, each cable emulation infinitesimal circuit includes
Inductance and capacitor, capacitor are parallel to one end of inductance.
The output port of the simulator externally exports Electrostatic discharge waveforms for cable static Discharge Simulation device, preferably
The output port on ground, simulator uses BNC connector.
Preferably, the control circuit unit includes two input ports and two key switches, two of them input terminal
Mouth is separately connected the external dc power of different voltages and two key switches are separately connected high-voltage relay, radio-frequency relay.
12V input port, 24V input port are used in the present embodiment, but are not limited to the voltage swing；And use 2 touch keys
Switch controls the connection and interruption of high-voltage relay and radio-frequency relay respectively.Further, the control circuit unit is also wrapped
Two instruction portable lamps for being separately connected two key switches are included, the connected state switched using instruction portable lamp display button,
The working condition of high-voltage relay and radio-frequency relay is respectively corresponded, lamp is bright to connect, and lamp goes out to disconnect.
The working principle of cable static Discharge Simulation device of the present invention is as follows:
Referring to Fig. 1, the high input voltage port of simulator of the present invention connects external high pressure power supply, the 12V of control circuit unit
Input port, 24V input port are connected respectively external dc power.First by cable under test component and simulator of the present invention
Output port connection；Then, external high pressure power supply is opened, voltage is adjusted；It presses and corresponds to high-voltage relay in control circuit unit
The touch key of device switchs, and the DC voltage of external 24V is transmitted to high-voltage relay, makes high-voltage relay by control circuit unit
Work, high-voltage relay connect high input voltage port and cable equivalent circuit unit, at the same the high pressure in control circuit unit after
Electric appliance instruction portable lamp is lighted；In cable equivalent circuit unit the capacitor of each cable emulation infinitesimal circuit will be charged to outside
The identical numerical value of portion's high voltage power supply output voltage；The touch key switch of corresponding high-voltage relay, control circuit list are pressed again
Member disconnects the input of 24V DC voltage, and high-voltage relay disconnects, and high-voltage relay work light extinguishes；
Then, control circuit unit presses the touch key switch of corresponding radio-frequency relay, and control circuit unit will be external
The DC voltage of 12V is transmitted to radio-frequency relay, and radio-frequency relay is made to work, and radio-frequency relay connects cable equivalent circuit unit
With output port, radio frequency electric appliance instruction portable lamp is lighted, at this time since the design of cable equivalent circuit unit meets true cable
Electrology characteristic, capacitor of the inside in charged state carries out static discharge to testing component by entire equivalent circuit, from defeated
Analog waveform signal of the exit port to testing component output dummycable static discharge；The light of corresponding radio-frequency relay is pressed again
Touch key switch, control circuit unit disconnect 12V DC voltage input, and radio-frequency relay stops working, cable equivalent circuit list
Member is disconnected with output port, and radio-frequency relay work light extinguishes；So far cable static Discharge Simulation device one action process
It completes.
The above process can be realized by the voltage value of adjusting external high pressure power supply to the electricity under different electrostatic potential states
The simulation and output of cable Electrostatic discharge waveforms.
To sum up, cable static Discharge Simulation device of the invention, can export the waveform of dummycable static discharge, for pair
CA cable assembly carries out electrostatic discharge susceptivity detection, can substitute charging cable output cable Electrostatic discharge waveforms, simplifies operating process
While, also achieve the miniaturization of device.
It should be noted that described above is only the preferred embodiment of the present invention, it should be understood that for art technology
For personnel, several changes and improvements can also be made under the premise of not departing from the technology of the present invention design, these are included in
In protection scope of the present invention.
Claims (7)
1. a kind of cable static Discharge Simulation device characterized by comprising
High-voltage relay, for controlling the external dc high voltage power supply input cable etc. of the high input voltage interface connection of simulator
Imitate circuit；
Cable equivalent circuit unit, for the external dc high voltage power supply according to input charge and charging complete after carry out
Static discharge simultaneously exports analog waveform；
Radio-frequency relay exports the analog waveform of cable equivalent circuit unit output to the output end of simulator for controlling
Mouthful；
Control circuit unit, for respectively to high-voltage relay, radio-frequency relay connection or interruption control.
2. cable static Discharge Simulation device according to claim 1, which is characterized in that if the cable equivalent circuit unit by
Dry cable emulation infinitesimal circuit is in series.
3. cable static Discharge Simulation device according to claim 2, which is characterized in that each cable emulation infinitesimal circuit
Including inductance and capacitor, wherein capacitor is parallel to one end of inductance.
4. cable static Discharge Simulation device according to claim 2, which is characterized in that the number of the cable emulation infinitesimal circuit
Amount is 100.
5. cable static Discharge Simulation device according to claim 1, which is characterized in that the control circuit unit includes two
Input port and two key switches, two of them input port be separately connected different voltages external dc power and two
Key switch is separately connected high-voltage relay, radio-frequency relay.
6. cable static Discharge Simulation device according to claim 5, which is characterized in that the control circuit unit further includes point
Not Lian Jie two key switches two instruction portable lamps.
7. cable static Discharge Simulation device according to claim 1, which is characterized in that the output port of the simulator uses
BNC connector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811294599.9A CN109444579A (en) | 2018-11-01 | 2018-11-01 | A kind of cable static Discharge Simulation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811294599.9A CN109444579A (en) | 2018-11-01 | 2018-11-01 | A kind of cable static Discharge Simulation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109444579A true CN109444579A (en) | 2019-03-08 |
Family
ID=65549824
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811294599.9A Pending CN109444579A (en) | 2018-11-01 | 2018-11-01 | A kind of cable static Discharge Simulation device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112363028A (en) * | 2020-10-29 | 2021-02-12 | 国网湖南省电力有限公司 | Partial discharge simulation cable and verification method of high-voltage cable partial discharge measurement system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1808449A (en) * | 2005-01-18 | 2006-07-26 | 王胜国 | State space direct methods of RLC interconnect and transmission line model and model predigestion |
| CN102053216A (en) * | 2009-11-10 | 2011-05-11 | 中芯国际集成电路制造(上海)有限公司 | Static discharge test method |
| CN201926720U (en) * | 2010-10-20 | 2011-08-10 | 北京卫星环境工程研究所 | Discharge source device for spatial electrostatic discharge test |
| CN207851217U (en) * | 2017-12-21 | 2018-09-11 | 四川航天计量测试研究所 | A kind of static induction density of electric spark workpiece experimental rig |
-
2018
- 2018-11-01 CN CN201811294599.9A patent/CN109444579A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1808449A (en) * | 2005-01-18 | 2006-07-26 | 王胜国 | State space direct methods of RLC interconnect and transmission line model and model predigestion |
| CN102053216A (en) * | 2009-11-10 | 2011-05-11 | 中芯国际集成电路制造(上海)有限公司 | Static discharge test method |
| CN201926720U (en) * | 2010-10-20 | 2011-08-10 | 北京卫星环境工程研究所 | Discharge source device for spatial electrostatic discharge test |
| CN207851217U (en) * | 2017-12-21 | 2018-09-11 | 四川航天计量测试研究所 | A kind of static induction density of electric spark workpiece experimental rig |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112363028A (en) * | 2020-10-29 | 2021-02-12 | 国网湖南省电力有限公司 | Partial discharge simulation cable and verification method of high-voltage cable partial discharge measurement system |
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