CN106154127A - The wire harness pressure method for rapidly testing of insulation - Google Patents
The wire harness pressure method for rapidly testing of insulation Download PDFInfo
- Publication number
- CN106154127A CN106154127A CN201610490486.0A CN201610490486A CN106154127A CN 106154127 A CN106154127 A CN 106154127A CN 201610490486 A CN201610490486 A CN 201610490486A CN 106154127 A CN106154127 A CN 106154127A
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- Prior art keywords
- heart yearn
- test
- group
- insulation
- wire harness
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Classifications
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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
- 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
- G01R31/1227—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 of components, parts or materials
- G01R31/1263—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 of components, parts or materials of solid or fluid materials, e.g. insulation films, bulk material; of semiconductors or LV electronic components or parts; of cable, line or wire insulation
- G01R31/1272—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 of components, parts or materials of solid or fluid materials, e.g. insulation films, bulk material; of semiconductors or LV electronic components or parts; of cable, line or wire insulation of cable, line or wire insulation, e.g. using partial discharge measurements
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
- G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
- G01R27/025—Measuring very high resistances, e.g. isolation resistances, i.e. megohm-meters
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
The invention discloses a kind of wire harness pressure method for rapidly testing of insulation, use combined test, and add process when judging defective.By the combined test of heart yearn; ensure all to carry out between heart yearn two-by-two the voltage-withstand test that insulate; effectively shorten the testing time; reduce cost of labor; high testing efficiency; passage switching times, effective protective relay and the service life of excitation power supply is reduced so that the insulation voltage-withstand test of wire harness can be carried out as normality test while reducing testing time.
Description
Technical field
The present invention relates to a kind of wire harness pressure method for rapidly testing of insulation
Background technology
Traditional wire harness insulation voltage-withstand test is test between heart yearn two-by-two, and wherein a heart yearn is to high pressure, other one
Root heart yearn, as return terminal, measures the insulation resistance value between line or pressure leakage current.The test philosophy of insulation resistance value as it is shown in figure 1,
The test philosophy of pressure leakage current is as shown in Figure 2.
In fact be equivalent to the resistance to big resistance measure and current measurement.As a example by a wire harness with 100 heart yearns, as
Really the retention time is 1s, test use time be: C100 2* 1=4950s, needs to take a long time.And it is the most large-scale
The wire harness of equipment there may be thousands of heart yearn the most up to ten thousand, and the retention time is also likely to be the most a few min of a few s (generally
Insulation test is 5s, and voltage-withstand test is 1min), the time spent is the most unacceptable.In commercially available tester, also
Having the method for testing that some are improved, such as give a wherein heart yearn high pressure, remaining all accesses return terminal and tests, so
Wire harness for 100 cores is tested, and just has only to the time of 100*1=100s, but for the wire harness of more split conductor and holding
The test that time is longer, the required time remains and is difficult to accept.In actual test process, wire harness is in most cases
Up to standard, underproof wire harness is little, and in underproof wire harness, underproof heart yearn is the most little.Accordingly it is contemplated that pass through group
Close the mode measured and first carry out quick qualitative test, it is judged that the heart yearn in wire harness or wire harness is the most qualified, the most again to not
Qualified heart yearn is measured accurately, it is achieved pressure quick test of insulating.
Summary of the invention
It is an object of the invention to overcome the deficiencies in the prior art, it is provided that a kind of wire harness pressure method for rapidly testing of insulation,
By the combined test of heart yearn, it is ensured that all carry out the voltage-withstand test that insulate two-by-two between heart yearn, effectively shorten the testing time, improve and survey
Examination efficiency, reduces passage switching times, effective protective relay and the service life of excitation power supply while reducing testing time.
It is an object of the invention to be achieved through the following technical solutions: wire harness insulate pressure method for rapidly testing, its bag
Include following steps:
S1: using measurement in a closed series algorithm to carry out heart yearn packet, group number is M, M=ROUNDUP (Log2N, 0)；
S2: the combination of n-th group heart yearn is insulated or voltage-withstand test, if test passes, then jump procedure S6, if test is not
Qualified, then jump procedure S3；
S3: keeping the combination of n-th group heart yearn constant, high-pressure section keeps, and return terminal part scans in turn, measures insulation or resistance to
Pressure value, records defective heart yearn and measured value, and high-pressure and low-pressure inverts, and again tests, records defective heart yearn and measured value；
S4: if there is defective heart yearn, then reject defective heart yearn, jump procedure S2, proceeds insulation or pressure survey
Examination；
If there is not defective heart yearn, then jump procedure S5；
S5: judge whether that heart yearn is rejected, rejects if there is heart yearn, then n-th group heart yearn combined test is defective, if not
There is heart yearn to reject, then n-th group heart yearn combined test is qualified, and takes worst-case value as measured value；
S6: circulation step S2-S5, the combination of remaining M-1 core assembly line is insulated or voltage-withstand test；
Described measurement in a closed series algorithm is: assuming that wire harness has N root heart yearn, first halved by N, first group is N/2 and N-
N/2, halves the most respectively by N/2 and N-N/2 after decile the most again, and wherein half carries out high-low-position intersects and switch to the
Two groups, second group is N/2/2+ (N-N/2)/2 and N/2-N/2/2+ (N-N/2)-(N-N/2)/2, and the rest may be inferred, to the last one
Group is 1+1+ ...+1 and 1+1+ ...+1, and wherein N is positive integer.
The invention has the beneficial effects as follows: the invention provides a kind of wire harness pressure method for rapidly testing of insulation, pass through heart yearn
Combined test, it is ensured that all carry out the voltage-withstand test that insulate two-by-two between heart yearn, effectively shorten the testing time, reduce artificial one-tenth
This, high testing efficiency, reduces making of passage switching times, effective protective relay and excitation power supply while reducing testing time
With the life-span so that the insulation voltage-withstand test of wire harness can be carried out as normality test.
Accompanying drawing explanation
Fig. 1 is insulation resistance value test philosophy figure；
Fig. 2 is the test philosophy figure of pressure leakage current；
Fig. 3 is that heart yearn combines distribution principle figure；
Fig. 4 is 8 heart yearn wire harness combination distribution schematic diagrams；
Fig. 5 is the combined test parallel resistance schematic diagram of 4 heart yearns；
Fig. 6 is the wire harness pressure method for rapidly testing flow chart of insulation.
Detailed description of the invention
Technical scheme is described in further detail below in conjunction with the accompanying drawings, but protection scope of the present invention is not limited to
The following stated.
As it is shown on figure 3, the present invention is in the insulation voltage-withstand test of wire harness, invent a kind of combinational algorithm, by heart yearn
Combined test, it is ensured that all carry out the voltage-withstand test that insulate two-by-two between heart yearn.
Assuming that wire harness has N root heart yearn, first halved by N, first group is N/2 and N-N/2, the most again by the N/ after decile
2 and N-N/2 halve the most respectively, and wherein half is carried out high-low-position intersect switch to second group, second group is N/2/2+ (N-
N/2)/2 and N/2-N/2/2+ (N-N/2)-(N-N/2)/2, the rest may be inferred, and to the last one group is 1+1+ ...+1 and 1+1+ ...+
1, wherein N is positive integer.
In order to vividly describe this assigning process, as a example by the wire harness of 8 heart yearns, it is allocated demonstration, such as Fig. 4 institute
Show.Concrete steps:
Heart yearn is defined as 1～8, and two points, by 1～4 short circuits and access high pressure, 5～8 short circuits also access return terminal, measure
Insulation pressure voltage；
By 1～4 two point, 5～8 two points, then latter half intersects, and forms 1278 and 5634, and 1278 short circuits also access height
Pressure, 5634 short circuits also access return terminal, measure insulation pressure voltage；
By 12 2 points, 78 2 points, 56 2 points, 34 2 points, then the latter half of intersection of every part, forms 1674 Hes
5238,1674 short circuits also access high pressure, and 5238 short circuits also access return terminal, measure insulation pressure voltage；
The most all heart yearns insulation pressure voltage between any two is all measured.
The combination distribution of whole wire harness has only to ROUNDUP (Log2N, 0) secondary measurement can complete, during wherein N is wire harness
Heart yearn quantity.With 100 heart yearn wire harness, as a example by retention time 1s, it is only necessary to ROUNDUP (Log2100,0) * 1=7s, greatly
Shorten the testing time.
But, measurement in a closed series there is also the problem of parallel resistance, cause measured value be not actual heart yearn two-by-two it
Between insulation pressure voltage, as Fig. 5 illustrates as a example by the combined test of 4 heart yearns:
If it practice, R13 to be measured, by combined test, often recording the parallel resistance of R13, R14, R23 and R24
Value, measurement result is inaccurate.But the measured value of insulation resistance is certainly less than actual value (RT< R), the measured value of leakage current is agree
Surely more than actual value (IT>I).And generally judge that the insulation of single line bundle or voltage-withstand test are the most qualified, judge it often
Whether insulation resistance value is more than the threshold value (R > R specified0), or whether leakage current value is less than the threshold value (I < I specified0)。
Wherein, RT, IT are measured value；R, I are actual value；R0, I0 are threshold value.
Therefore, the mode of employing combined test:
If RT>R0, then R > R0；
If IT<I0, then I < I0。
According to the actual test to wire harness, the qualified insulation resistance value between heart yearn often close to infinity, leakage current
Often close to zero, even if consider parallel resistance, also will not exceeded threshold and cause defective；And between underproof heart yearn its
Insulation resistance value can be well below threshold value, and leakage current can substantially exceed threshold value.In the case of the most most, adopt and in this way may be used
Judge that wire harness is the most qualified qualitatively.
When using combined test, if judging test passes, then result is accurately；If judging defective, then result
The most accurate.The most in testing, need to add process when judging defective.As shown in Figure 6, wire harness insulation is pressure soon
Speed method of testing, comprises the steps:
S1: using measurement in a closed series algorithm to carry out heart yearn packet, group number is M, M=ROUNDUP (Log2N, 0)；
S2: the combination of n-th group heart yearn is insulated or voltage-withstand test, if test passes, then jump procedure S6, if test is not
Qualified, then jump procedure S3；
S3: keeping the combination of n-th group heart yearn constant, high-pressure section keeps, and return terminal part scans in turn, measures insulation or resistance to
Pressure value, records defective heart yearn and measured value, and high-pressure and low-pressure inverts, and again tests, records defective heart yearn and measured value；
S4: if there is defective heart yearn, then reject defective heart yearn, jump procedure S2, proceeds insulation or pressure survey
Examination；
If there is not defective heart yearn, then jump procedure S5；
S5: judge whether that heart yearn is rejected, rejects if there is heart yearn, then n-th group heart yearn combined test is defective, if not
There is heart yearn to reject, then n-th group heart yearn combined test is qualified, and takes worst-case value as measured value；
S6: circulation step S2-S5, the combination of remaining M-1 core assembly line is insulated or voltage-withstand test.
Testing by above flow process, if wire harness is qualified, then the testing time is only ROUNDUP (Log2N, 0) * T, wherein N
For heart yearn quantity, T is the retention time.If there is underproof heart yearn, then individual cord can be tested, can obtain accurate
Measurement data, but the time can be elongated, and also defective heart yearn is the most, and the time is the longest.In actual test, the overwhelming majority is acceptance line
Bundle, even if defective work, underproof heart yearn also tends to only several.Therefore, this method of testing is greatly improved wire harness and exists
Carry out work efficiency when Insulation test and voltage-withstand test, greatly saved cost, and defective heart yearn can have been carried out accurately
Location and test, it is simple to the maintenance of wire harness.
The present invention is as follows with traditional method of testing correction data when testing acceptance line Shu Jinhang:
Table 1 Insulation test Data Comparison (retention time: 5s, unit: s)
Table 2 voltage-withstand test Data Comparison (retention time: 1min, unit: min)
Claims (1)
1. the pressure method for rapidly testing of wire harness insulation, it is characterised in that: it comprises the steps:
S1: using measurement in a closed series algorithm to carry out heart yearn packet, group number is M, M=ROUNDUP(Log2N, 0)；
S2: the combination of n-th group heart yearn is insulated or voltage-withstand test, if test passes, then jump procedure S6, if test does not conforms to
Lattice, then jump procedure S3；
S3: keeping the combination of n-th group heart yearn constant, high-pressure section keeps, and return terminal part scans in turn, measures insulation or pressure
Value, records defective heart yearn and measured value, and high-pressure and low-pressure inverts, and again tests, records defective heart yearn and measured value；
S4: if there is defective heart yearn, then reject defective heart yearn, jump procedure S2, proceeds insulation or voltage-withstand test；
If there is not defective heart yearn, then jump procedure S5；
S5: judge whether that heart yearn is rejected, rejects if there is heart yearn, then n-th group heart yearn combined test is defective, if not existing
Heart yearn is rejected, then n-th group heart yearn combined test is qualified, and takes worst-case value as measured value；
S6: circulation step S2-S5, the combination of remaining M-1 core assembly line is insulated or voltage-withstand test；
Described measurement in a closed series algorithm is: assuming that wire harness has N root heart yearn, first halved by N, first group is N/2 and N-N/2,
The most again N/2 and N-N/2 after decile is halved the most respectively, and wherein half is carried out high-low-position intersect switch to second
Group, second group is N/2/2+ (N-N/2)/2 and N/2-N/2/2+ (N-N/2)-(N-N/2)/2, and the rest may be inferred, to the last one group
For 1+1+ ...+1 and 1+1+ ...+1, wherein N is positive integer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610490486.0A CN106154127B (en) | 2016-06-27 | 2016-06-27 | Harness insulation pressure resistance method for rapidly testing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610490486.0A CN106154127B (en) | 2016-06-27 | 2016-06-27 | Harness insulation pressure resistance method for rapidly testing |
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| Publication Number | Publication Date |
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| CN106154127A true CN106154127A (en) | 2016-11-23 |
| CN106154127B CN106154127B (en) | 2019-04-19 |
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| Application Number | Title | Priority Date | Filing Date |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109031065A (en) * | 2018-07-24 | 2018-12-18 | 常州同惠电子股份有限公司 | Other a pair of test methods of high pressure for wire test instrument |
| CN111624509A (en) * | 2020-05-07 | 2020-09-04 | 博硕科技(江西)有限公司 | Power line testing method and device |
| CN112363002A (en) * | 2020-11-25 | 2021-02-12 | 常州同惠电子股份有限公司 | Multi-element parallel test method for safety voltage-resistant instrument |
| CN116930823A (en) * | 2023-09-18 | 2023-10-24 | 常州同惠电子股份有限公司 | High-voltage adjacent test method and system for wire tester |
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| US20040046570A1 (en) * | 2002-09-06 | 2004-03-11 | Stanley Teich | Aircraft multi-function wire and insulation tester |
| CN101718835A (en) * | 2009-11-23 | 2010-06-02 | 泰兴市航联电连接器有限公司 | Comprehensive insulation and voltage resistance testing device of electric connector |
| CN103389445A (en) * | 2013-07-26 | 2013-11-13 | 南车南京浦镇车辆有限公司 | Insulation and voltage resistance test method for multicore connector wirings |
| CN104090216A (en) * | 2014-07-10 | 2014-10-08 | 苏州福瑞互感器有限公司 | Device and method for detecting wiring harness high-voltage insulation |
| CN104459480A (en) * | 2013-09-22 | 2015-03-25 | 珠海格力电器股份有限公司 | Voltage-withstand performance testing method and system for multi-core power line |
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2016
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040046570A1 (en) * | 2002-09-06 | 2004-03-11 | Stanley Teich | Aircraft multi-function wire and insulation tester |
| CN101718835A (en) * | 2009-11-23 | 2010-06-02 | 泰兴市航联电连接器有限公司 | Comprehensive insulation and voltage resistance testing device of electric connector |
| CN103389445A (en) * | 2013-07-26 | 2013-11-13 | 南车南京浦镇车辆有限公司 | Insulation and voltage resistance test method for multicore connector wirings |
| CN104459480A (en) * | 2013-09-22 | 2015-03-25 | 珠海格力电器股份有限公司 | Voltage-withstand performance testing method and system for multi-core power line |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109031065A (en) * | 2018-07-24 | 2018-12-18 | 常州同惠电子股份有限公司 | Other a pair of test methods of high pressure for wire test instrument |
| CN111624509A (en) * | 2020-05-07 | 2020-09-04 | 博硕科技(江西)有限公司 | Power line testing method and device |
| CN112363002A (en) * | 2020-11-25 | 2021-02-12 | 常州同惠电子股份有限公司 | Multi-element parallel test method for safety voltage-resistant instrument |
| CN116930823A (en) * | 2023-09-18 | 2023-10-24 | 常州同惠电子股份有限公司 | High-voltage adjacent test method and system for wire tester |
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| Publication number | Publication date |
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| CN106154127B (en) | 2019-04-19 |
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