CN207742256U - Portable type full-automatic electrical interface D.C. resistance tests system - Google Patents
Portable type full-automatic electrical interface D.C. resistance tests system Download PDFInfo
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- CN207742256U CN207742256U CN201721894162.XU CN201721894162U CN207742256U CN 207742256 U CN207742256 U CN 207742256U CN 201721894162 U CN201721894162 U CN 201721894162U CN 207742256 U CN207742256 U CN 207742256U
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Abstract
The utility model is related to a kind of Portable type full-automatic electrical interface D.C. resistances to test system, major and minor two tests input port is provided, tested electrical interface is connected to primary input mouth by cable of transferring when testing single electrical interface, two tested electrical interfaces are connected to major and minor two electrical interfaces by cable of transferring when the D.C. resistance tested between two electrical interfaces.PC control computer imports or is manually entered the IDS lists of electrical interface, control computer needs node to be tested to be tested and stores test result to form report according to the IDS lists of importing control testing cassete, realizes automatic test, the judgement and output of test result well.
Description
Technical field
The utility model belongs to Electronic Testing Technology field, is related to a kind of Portable type full-automatic electrical interface D.C. resistance test
System more particularly to a kind of test system to electronic equipment on satellite electrical interface D.C. resistance.
Background technology
It is a kind of electronic equipment production division or final detection department pair before manufacture that electrical interface D.C. resistance, which tests system,
The single electrical interface isopotential point of electronic product, null point, point-to-point transmission D.C. resistance (such as insulation of power supply positive and negative terminal, telemetering output impedance
Situation) or the intermediate node of two electrical interfaces between D.C. resistance (such as connector A primary power sources with secondary power supply in connector B
Between D.C. resistance) test special test equipment.
With the fast development of China's Aerospace Technology, electronic equipment on satellite function becomes increasingly complex, it is meant that an equipment
Upper electrical interface and its node are more and more, after equipment is in veneer stage or mould assembling not to electrical interface especially power interface into
The corresponding conducting of row, Insulation test, after the power is turned on probably due to during product Denso the initiation of the reasons such as broken string, misconnection, rosin joint it is huge
Big hidden danger.Therefore it is necessary to electrical interface test.
Currently, the domestic electrical interface that will be generally tested using test cable is forwarded to special test tooling, tester
The mono- manual tests of IDS are compareed using multimeter.Such test method inefficiency, tester's labor intensity is big, relatively easily
Error, there are the risks that human operational error damages test product, test leakage, sniffing node.Satellite borne equipment is wanted before manufacture at present
It carries out a series of experiments and different stages, such manual testing multiple to same interface testing in entire production process
Labor intensity is excessive, influences testing efficiency and testing reliability.Therefore, the method tested automatically of research electrical interface D.C. resistance and
Equipment realizes the automatic test of D.C. resistance, liberates manpower, improves testing efficiency and reliability is of great significance and is worth.
Utility model content
To improve testing efficiency and testing reliability, repeatability, the utility model provides one kind at lower cost, so that it may
With it is portable, quickly in laboratory environments, between each node in the single electrical interface of electronic equipment or two electrical interfaces conducting,
The Portable type full-automatic electrical interface D.C. resistance test system and test method that insulation performance is tested.
The technical solution of the utility model is：
A kind of Portable type full-automatic electrical interface D.C. resistance test system, including host computer and electrical interface testing cassete；It is described
Electrical interface testing cassete includes AC220V power input interfaces, in-line power module, is characterized in that, the electrical interface testing cassete
Further include electric connector primary input mouth, electric connector auxiliary input mouth, network interface, multiple short-circuit plugs, resistance measurement unit, Duo Geji
Electric switch matrix veneer, multiple relay drive circuit veneers, a test control circuit veneer；Wherein：Each relay
2 rows × n row relays are fixed on switch matrix veneer, a relay drive circuit veneer drives a relay switch
Matrix veneer；N is the natural number more than 1；The electric connector primary input mouth and each piece of Relay Switch Matrix veneer first
The common end of row relay connects one to one；The normally open end of the first row relay connects in each piece of Relay Switch Matrix veneer
It is connected to test bus just, normal-closed end is connected to the normally open end of the second row respective column relay；Electric connector auxiliary input mouth with it is each
The normally open end of block Relay Switch Matrix row the second row relay connects one to one；Second row relay common end is connected to survey
It is negative to try bus；Test bus just bears the positive negative input for being connected to resistance measurement unit with test bus；The host computer will import
IDS tables be converted into test file test control circuit veneer be transferred to by network interface.
Further, above-mentioned electrical interface testing cassete further includes motherboard, the multiple Relay Switch Matrix veneer, Duo Geji
Electrical apparatus driving circuit veneer, a test control circuit veneer are separately positioned on motherboard.
The utility model has the advantages that：
1, the utility model provide one kind can direct current between portable, quick each node of test electrical interface or between two electrical interfaces
The test equipment and test method of resistance.After tested interface to testing cassete, test only need to be recalled on upper computer software
Data can be tested and be recorded to file to tested electrical interface respective nodes automatically, when the test for being related to bulk article or
Very convenient manpower will be fully effectively liberated when needing to test same interface repeatedly, and improve testing efficiency and testing reliability.
2, Relay Switch Matrix is rationally distributed compact-sized simple, all unit-modularized, single boards, convenient for safeguarding,
It all modules and is inserted on testing cassete motherboard, multiple relay matrix veneers is provided on motherboard and are inserted with relay driving veneer
Slot, one piece of driving plate drive one piece of relay board, are ready for multiple veneers, so versatile, when a certain single board default can be fast
Speed more renews plate or the veneer for being inserted in back and being not involved in test is inserted in failing single board position.
Description of the drawings
Fig. 1 is a kind of system composition of Portable type full-automatic electrical interface D.C. resistance test system provided by the utility model
Block diagram；Wherein：1- PC control computers；2- electrical interface testing cassetes；3- equipment under tests.
Fig. 2 is composition frame chart inside electrical interface testing cassete, and line solid line is power cord between each module, dotted line is signal
Line；Wherein：1- electric connector primary input mouths；2- motherboards；3- Relay Switch Matrix veneers；4- relay drive circuit veneers；
5- device housings；6- test control circuit veneers；7- general supply input indicators；The normal indicator light of 8- self-tests；9- is being tested
Indicator light；10- resistance measurement units；11- power switches；12- in-line power modules；13- cable interfaces；14- fuses；15-
The input ports AC220V；16- electric connector auxiliary input mouths；
Fig. 3 is relay matrix switchboard schematic diagram (only indicating principle with 2 × 4 arrays in figure)；Wherein：Mono- piece of relay of 1-
Device switch matrix veneer；2- is testing bus just；3- resistance measurement units；It is negative that 4- tests bus；5- electric connector auxiliary input mouths；6-
Single-pole double-throw relay switchs；7- electric connector primary input mouths.
Specific implementation mode
Tthe utility model system forms and principle is as follows：
Electrical interface to be measured is forwarded to testing cassete, the IDS imported by upper computer software is mono- or manually selects and to test
Node control testing cassete in the break-make of relay form test loop, complete the test of electrical interface, and by test result shape
At report.The utility model can both test D.C. resistance between each node of single electrical interface, can also test direct current between two connectors
Resistance.Entire test system module, single board, plug and pull is easy to maintain, all modules and is inserted on testing cassete motherboard, female
Multiple relay matrix veneers and relay driving veneer slot are provided on plate, one piece of driving plate drives one piece of relay board, can
Prepare multiple veneers, so versatile, when a certain single board default, which can more renew rapidly plate or will be inserted in back, is not involved in survey
The veneer of examination is inserted in failing single board position.
The utility model is that tested electrical interface is connected to testing cassete by transit cable, and PC control computer is to upper
After position machine test software and each function module of slave computer are completed startup self-detection and initialized, according to the IDS lists or hand of importing
The test node of dynamic selection forms testing and control file, and the testing and control that unit of testing and controlling is come according to host computer transmission later is literary
Part control relay drive unit makes the relay on relay switch plate disconnect or be closed, and is tested back accordingly to be formed
Corresponding test result is back to PC control computer by road, resistance measurement unit, and host computer test software will be passed back
Data carry out analysis calculating, obtain maximum value, minimum value, average value and the standard deviation of respective nodes test value.
The present apparatus mainly consists of the following parts：
Referring to Fig. 1, the Portable type full-automatic electrical interface D.C. resistance test system of the utility model include host computer and its
Control software 1, testing cassete 2, host computer 1, which is connect with testing cassete 2 by cable, is used for transmission test command and return test result.
Referring to Fig. 2, testing cassete matches by electric connector primary input mouth 1 and with it and the short-circuit plug of all node short circuits,
Testing cassete mother board 2, relay switch array veneer 3, relay drive circuit veneer 4, device housings 5, testing and control electricity
Road plate 6, the normal indicator light 8 of self-test, is being tested indicator light 9, resistance measurement unit 10, power supply and is being opened general supply input indicator 7
Close 11, in-line power module 12, cable interface 13, fuse 14, the input ports AC220V 15,16 groups of electric connector auxiliary input mouth
At.
Referring to Fig. 3, it is fixed with 2 rows × 4 on one piece of Relay Switch Matrix veneer 1 and arranges a relay (8 row of recommendation, figure upper 4
Row are only for principle of specification), columns can be changed according to actual demand, and test bus is positive 2, test bus is minus 4, relay 6 is list
Double-pole double throw switch.
Connection relation between each section：
Referring to Fig. 2, Relay Switch Matrix veneer, relay drive circuit veneer, test control circuit veneer pass through
J41D or same type of printed board types electric connector is connected with motherboard in testing cassete, and motherboard upward wiring connects above three unit
Connect, wherein Relay Switch Matrix veneer is consistent with relay drive circuit veneer number, on motherboard it is each insert a row, one piece after
Electrical apparatus driving circuit veneer drives one piece of Relay Switch Matrix veneer.There are AC220V power input interfaces, power supply on testing cassete
It converts alternating current to three road DC source of stable pressure by fuse to in-line power module, power supply module after input, supplies resistance all the way
Measuring unit, all the way by motherboard access unit of testing and controlling, another way pass through motherboard supply relay driving plate.On testing cassete
Network interface is connect by motherboard with unit of testing and controlling.
Referring to Fig. 3, electric connector primary input mouth passes through motherboard in testing cassete and Relay Switch Matrix row the first row relay
The common end of device connects one to one, and first block of plate, 16 interfaces are connect after having connect with second block of relay switch plate, until defeated
All contact pin connections of entrance finish.The first row relay normally open end is being connected to test bus just, and normal-closed end is connected to the second row phase
Should row relay normally open end.Electric connector auxiliary input mouth by motherboard in testing cassete and the second row of Relay Switch Matrix row after
The normally open end of electric appliance connects one to one, and first block of plate, 16 interfaces are connect after having connect with second block of relay switch plate, until
All contact pin connections in input port finish.It is negative that second row relay common end is connected to test bus.Two test buses are connected to
The positive negative input of resistance measurement unit.
The automatic test approach of D.C. resistance based on the test system, mainly comprises the steps of：
When using equipment, host computer is connect by cable with testing cassete, and testing cassete is connected with the mains, and opens power supply after power supply
Indicator light is bright, and opening host computer test software is not connected to equipment under test and starts System self-test.System self-test flow is square as described below
To referring to Fig. 3：
1) shorting pin is inserted into testing cassete primary input mouth, primary input mouth is for short circuit at this time；
2) relay switch is in test default conditions, and referring to Fig. 3, i.e., all relays are in normally off, at this time institute
There is test access to disconnect；
3) system starts relay and its driving of first piece of row of veneer first and second of test and S1, S2, S5, S6 column
Device.It is " open circuit " to measure resistance value states at this time；
4) S1, S6 get to normally open end and remaining default state, and it is " short circuit " to measure resistance value states；
5) all relays reply default state, and it is " open circuit " to measure resistance value states；
6) S2, S5 get to normally open end and remaining default state, and it is " short circuit " to measure resistance value states；
7) if test result is followed successively by " open circuit ", " short circuit ", " open circuit ", " short circuit ", then it is assumed that the one or two row are normal, otherwise
Return to which step goes wrong；
8) third and fourth row of beginning testing single-board, test until all row and complete, " self-test completion " indicator light is lighted, upper
Machine software shows self-test state.
So far can connect equipment under test carry out test testing process it is as follows：
When the 1 single electrical interface of test：
Tested electrical interface is connected to testing cassete primary input mouth by a by transit cable, and relay switch is in main electrical interface
Test default conditions；
If the measured points b be 1,3 nodes, upper computer software manually select 1,3 nodes or by the IDS tables of importing it is automatic
Test.The unit of testing and controlling that order will be generated testing and control file and be transmitted in testing cassete, S1, S7 are beaten to normally opened at this time
End, remaining acquiescence, then 1,3 nodes will access test loop；
C unit of testing and controlling control resistance measurement unit testing test the 100ms times can sets itself, will finally measure
Data return host computer, upper computer software calculate test data maximum value, minimum value, average value, standard deviation；
All relay recovery default conditions of d, unit of testing and controlling stopping adopt number and carry out other according to host computer instruction
Node test, until test is completed；
When e tests null point, tested node column the first row relay beat to normally open end, all relays of the second row beat to
Normally open end.Bus is being tested just in measured point by access at this time, remaining node is each coupled to test bus pair, and the same c of test method is surveyed
Two relays where tested node are beaten to normal-closed end after the completion of examination, and start the test of next node null point, until test is completed；
All test results are formed report output by f host computers.
2 test two electrical interfaces between resistance when：
Two tested electrical interfaces are connected to major and minor two input ports by a, and relay status enters test default conditions as schemed
Shown in 3；
If the resistance between b tests main 1 and pair 1, S1, S5 switch are beaten to normally open end, are led 1, pair 1 at this time and are surveyed respectively by access
Bus is tried just with test bus negative shape at test loop.Note that if there are isopotential point, equal the connected relays in sites for measured point
It is equal site with main 1 that closure, which should also be beaten to normally open end such as main 2, pair 2 with secondary 1 the sites such as is, then S2, S3 should also be beaten to normally opened
End, otherwise resistance test is it is possible that mistake；
C unit of testing and controlling control resistance measurement unit testing test the 100ms times can sets itself, will finally measure
Data return host computer, upper computer software calculate test data maximum value, minimum value, average value, standard deviation；
All relay recovery default conditions of d, unit of testing and controlling stopping adopt number and carry out other according to host computer instruction
Node test, until test is completed；
All test results are formed report output by f host computers.
Claims (2)
1. Portable type full-automatic electrical interface D.C. resistance tests system, including host computer and electrical interface testing cassete；The electrical interface
Testing cassete includes AC220V power input interfaces, in-line power module, it is characterised in that：
The electrical interface testing cassete further include electric connector primary input mouth, electric connector auxiliary input mouth, network interface, multiple short circuits insert
Head, resistance measurement unit, multiple Relay Switch Matrix veneers, multiple relay drive circuit veneers, a testing and control electricity
Road veneer；Wherein：2 rows × n row relays, a relay drive circuit are fixed on each Relay Switch Matrix veneer
Veneer drives a Relay Switch Matrix veneer；N is the natural number more than 1；
The common end one of the electric connector primary input mouth and each piece of Relay Switch Matrix veneer the first row relay is a pair of
It should connect；
The normally open end of the first row relay is being connected to test bus just in each piece of Relay Switch Matrix veneer, normal-closed end connection
To the normally open end of the second row respective column relay；
Electric connector auxiliary input mouth and the normally open end of each piece of Relay Switch Matrix row the second row relay connect one to one；
It is negative that second row relay common end is connected to test bus；
Test bus just bears the positive negative input for being connected to resistance measurement unit with test bus；
The host computer converts the IDS tables of importing to test file and is transferred to test control circuit veneer by network interface.
2. Portable type full-automatic electrical interface D.C. resistance according to claim 1 tests system, it is characterised in that：
The electrical interface testing cassete further includes motherboard, the multiple Relay Switch Matrix veneer, multiple relay drive circuits
Veneer, a test control circuit veneer are separately positioned on motherboard.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721894162.XU CN207742256U (en) | 2017-12-28 | 2017-12-28 | Portable type full-automatic electrical interface D.C. resistance tests system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721894162.XU CN207742256U (en) | 2017-12-28 | 2017-12-28 | Portable type full-automatic electrical interface D.C. resistance tests system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207742256U true CN207742256U (en) | 2018-08-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721894162.XU Withdrawn - After Issue CN207742256U (en) | 2017-12-28 | 2017-12-28 | Portable type full-automatic electrical interface D.C. resistance tests system |
Country Status (1)
| Country | Link |
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| CN (1) | CN207742256U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108152593A (en) * | 2017-12-28 | 2018-06-12 | 中国科学院西安光学精密机械研究所 | Portable type full-automatic electrical interface D.C. resistance tests system and test method |
-
2017
- 2017-12-28 CN CN201721894162.XU patent/CN207742256U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108152593A (en) * | 2017-12-28 | 2018-06-12 | 中国科学院西安光学精密机械研究所 | Portable type full-automatic electrical interface D.C. resistance tests system and test method |
| CN108152593B (en) * | 2017-12-28 | 2023-08-18 | 中国科学院西安光学精密机械研究所 | Portable full-automatic electric interface direct current resistance test system and test method |
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| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
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| AV01 | Patent right actively abandoned |
Granted publication date: 20180817 Effective date of abandoning: 20230818 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20180817 Effective date of abandoning: 20230818 |