CN101893673A - Method for utilizing Q value to detect secondary winding of ignition coil - Google Patents
Method for utilizing Q value to detect secondary winding of ignition coil Download PDFInfo
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- CN101893673A CN101893673A CN2009101025715A CN200910102571A CN101893673A CN 101893673 A CN101893673 A CN 101893673A CN 2009101025715 A CN2009101025715 A CN 2009101025715A CN 200910102571 A CN200910102571 A CN 200910102571A CN 101893673 A CN101893673 A CN 101893673A
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- value
- secondary windings
- secondary winding
- turn
- short circuit
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Abstract
The invention discloses a method for utilizing Q value to detect the secondary windings of an ignition coil, which comprises the following steps: determining the minimum Q value of the secondary windings by measuring Q value of larger sample size of the secondary windings of the ignition coil; carrying out 100% package detection on wound secondary windings; separating the secondary windings, the Q value of which is lower than the minimum value, installing iron cores for the secondary windings, and then measuring the Q value thereof; making sure that the secondary windings the Q value of which is obviously lower than normal value to have turn-to-turn short circuit; and processing the secondary windings as scraps. The detection method of the invention is simple and reliable, can distinguish situations of turn-to-turn short circuit with less number of windings, and has high detection sensitivity and good reliability, thereby effectively eradicating the phenomenon that secondary windings with unqualified turn-to-turn short circuit flow to the next working procedure to cause greater waste due to the scrap of final assembly finished products.
Description
Technical field
The present invention relates to the technical field of gasoline engine electrical equipment, relate in particular to the method for utilizing Q value check point fire coil secondary winding.
Background technology
The secondary winding of ignition coil is because very thin with line, and enameled wire unavoidably occurs certain a bit of line once in a while and leaks extension insullac, and few number of turn short circuit may appear in the secondary winding of coiled.The method of conventional sense secondary winding is to measure the resistance or the inductance of this winding, but this method is only when the turn-to-turn short circuit of circles up to a hundred appears in the secondary winding coil, evident difference could appear in resistance or inductance, for the turn-to-turn short circuit resistance of the number of turn at a few circle to tens circles, the variation of inductance is less, can not become the foundation of differentiation, at above-mentioned present situation, method of the present invention is to utilize the Q value of automatically controlled measurement secondary winding, short circuit for the holiday number of turn and even a circle can obtain tangible distinguishing rule, so just stopped leak to hang the underproof ignition coil secondary winding of lacquer line workpiece and flowed into next procedure, caused the product assembly to scrap and cause bigger waste.
Summary of the invention
Technical scheme to be solved by this invention is to utilize Q value check point fire coil secondary winding, whether exist because of enameled wire once in a while and leak the coil of hanging the turn-to-turn short circuit that lacquer causes, detecting of not leaking, it is separated, avoid underproof secondary winding coil is flowed into next procedure, cause the bigger loss of general assembly product.
Method of the present invention is: by the Q value numerical value of measurement point fire coil secondary winding larger samples amount, determine the minimum Q value of its this secondary winding.The secondary winding in opposing connection city carries out the inspection of 100% bag, allly is lower than the secondary winding of minimum value for the Q value, and it is separated, again it is loaded onto iron core and carry out the measurement of Q value, the Q value is starkly lower than normal value person is the secondary winding of turn-to-turn short circuit, certainly as the waste product otherwise processed.
Adopt the beneficial effect of the technical program to be, detect simple and reliable and can differentiate the less turn-to-turn short circuit situation of the number of turn.Thereby the detection sensitivity height, good reliability has been stopped to leak the defective secondary winding of hanging the turn-to-turn short circuit that enameled wire causes effectively and has been flowed into next procedure, causes the general assembly finished product to scrap the bigger waste that is caused.
Embodiment
The method of utilizing Q value check point fire coil secondary winding of the present invention, be to utilize Q value check point fire coil secondary winding, whether exist because of enameled wire once in a while and leak the coil of hanging the turn-to-turn short circuit that lacquer causes, detecting of not leaking, it is separated, avoid underproof secondary winding coil is flowed into next procedure, cause the bigger loss of general assembly product.
Method of the present invention is: by the Q value numerical value of measurement point fire coil secondary winding larger samples amount, determine the minimum Q value of its this secondary winding.The secondary winding of coiled is carried out 100% bag inspection, allly be lower than the secondary winding of minimum value, it is separated for the Q value, again it is loaded onto iron core and carry out the measurement of Q value, the Q value is starkly lower than normal value person is the secondary winding of turn-to-turn short circuit, certainly as the waste product otherwise processed.
Claims (1)
1. method of utilizing Q value check point fire coil secondary winding, it is characterized in that: it is the Q value numerical value by measurement point fire coil secondary winding larger samples amount, determines the minimum Q value of its this secondary winding; The secondary winding of coiled is carried out 100% bag inspection, allly be lower than the secondary winding of minimum value, it is separated for the Q value, again it is loaded onto iron core and carry out the measurement of Q value, the Q value is starkly lower than normal value person is the secondary winding of turn-to-turn short circuit, certainly as the waste product otherwise processed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101025715A CN101893673A (en) | 2009-05-20 | 2009-05-20 | Method for utilizing Q value to detect secondary winding of ignition coil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101025715A CN101893673A (en) | 2009-05-20 | 2009-05-20 | Method for utilizing Q value to detect secondary winding of ignition coil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101893673A true CN101893673A (en) | 2010-11-24 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101025715A Pending CN101893673A (en) | 2009-05-20 | 2009-05-20 | Method for utilizing Q value to detect secondary winding of ignition coil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101893673A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2257533B (en) * | 1991-06-28 | 1995-02-15 | Ford Motor Co | Short circuited secondary detection via primary monitoring |
| GB2329971A (en) * | 1997-09-11 | 1999-04-07 | Siemens Automotive Sa | Diagnostic method and device for an ignition system of an internal combustion engine |
| CN1532554A (en) * | 2002-12-10 | 2004-09-29 | ��������ķ������ | Fault diagnostic method for transformer winding |
| CN101017191A (en) * | 2007-03-01 | 2007-08-15 | 华北电力大学 | On-line fault diagnoses method on rotor winding inter turn short-circuit of turbine generator |
| CN101025434A (en) * | 2007-03-28 | 2007-08-29 | 华北电力大学 | Asynchronous motor stator winding inter-turn short circuit failure on-line detecting method and device |
| CN101221206A (en) * | 2007-08-03 | 2008-07-16 | 西北工业大学 | Method for Diagnosing Turn-to-turn Short-Circuit Fault of Permanent Magnet Fault-Tolerant Motor |
| CN201133925Y (en) * | 2007-09-19 | 2008-10-15 | 郑役军 | Turn-to-turn short circuit test device |
-
2009
- 2009-05-20 CN CN2009101025715A patent/CN101893673A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2257533B (en) * | 1991-06-28 | 1995-02-15 | Ford Motor Co | Short circuited secondary detection via primary monitoring |
| GB2329971A (en) * | 1997-09-11 | 1999-04-07 | Siemens Automotive Sa | Diagnostic method and device for an ignition system of an internal combustion engine |
| CN1532554A (en) * | 2002-12-10 | 2004-09-29 | ��������ķ������ | Fault diagnostic method for transformer winding |
| CN101017191A (en) * | 2007-03-01 | 2007-08-15 | 华北电力大学 | On-line fault diagnoses method on rotor winding inter turn short-circuit of turbine generator |
| CN101025434A (en) * | 2007-03-28 | 2007-08-29 | 华北电力大学 | Asynchronous motor stator winding inter-turn short circuit failure on-line detecting method and device |
| CN101221206A (en) * | 2007-08-03 | 2008-07-16 | 西北工业大学 | Method for Diagnosing Turn-to-turn Short-Circuit Fault of Permanent Magnet Fault-Tolerant Motor |
| CN201133925Y (en) * | 2007-09-19 | 2008-10-15 | 郑役军 | Turn-to-turn short circuit test device |
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| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20101124 |