CN102169769A - Conductive contact surface performance online diagnosing and repairing system and using method thereof - Google Patents
Conductive contact surface performance online diagnosing and repairing system and using method thereof Download PDFInfo
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- CN102169769A CN102169769A CN2011100278884A CN201110027888A CN102169769A CN 102169769 A CN102169769 A CN 102169769A CN 2011100278884 A CN2011100278884 A CN 2011100278884A CN 201110027888 A CN201110027888 A CN 201110027888A CN 102169769 A CN102169769 A CN 102169769A
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Abstract
The invention discloses a conductive contact surface performance online diagnosing and repairing system and a using method thereof. The system comprises an impedance detecting part and an electric grinding part, wherein the impedance detecting part and the electric grinding part are connected in parallel to a relay contact to be detected, connecting ends are respectively connected with an external circuit through an isolation switch, and two ends of the impedance detecting part are respectively connected with a relay coil to be detected so as to control the relay contact to be closed and detect the relay coil to be electrified. Compared with the prior art, the invention has the advantages of realizing the online detecting and the online grinding of a conductive contact surface, eliminating overhaul and decomposition maintenance of equipment parts, greatly increasing repairing efficiency and reliability, reducing coefficient of losses and cost expenses, and being simple and compact in integral structure and convenient and easy to operate.
Description
Technical field
The present invention relates to a kind of inline diagnosis repair system and using method thereof, belong to the Electric automation technology field, refer in particular to the conductive contact surfaces performance inline diagnosis repair system and the using method thereof of contacts such as a kind of electric switch, relay and electrical connector.
Background technology
In the electric automatization field, various switching regulator element is extensively used, and the reliability of many online Key Circuit that run without interruption is played material impact.At present, mainly take to make regular check on the preventive maintenance measure of maintenance for the key loop of this type, but effect is not remarkable, and need frequently carries out the shutdown of long period and open and inspect, reduced the availability of equipment.
In use, the inefficacy of switch element contact contact-making surface and connector or decreased performance often are because oxidation, the carbon distribution and stained of conductive contact surfaces.In the prior art, traditional restorative procedure is to decompose after switch element is disassembled, and takes out the contact pin of contact or connector, and conductive contact surfaces is carried out the artificial mechanism polishing, then can only scrap replacing for the hermetic switchgear of part.This traditional polishing process need decompose and assembling again switch element, complicated operation, and labor intensive, and the fit clearance after assembling again is difficult to guarantee to return to original optimum state; On the other hand, polishing also has extra loss to the contact copper face, and contact is only done once and just need be scrapped to twice polishing reparation usually; Simultaneously, the contact polishing is also higher to operating personnel's specification requirement.
Summary of the invention
The objective of the invention is to overcome in the prior art shortcoming with not enough, provide a kind of simple and compact for structure, easy to operate easily, need not to dismantle resolution element, effect is obvious, efficient is high and cost is low conductive contact surfaces performance inline diagnosis repair system.
Another object of the present invention is to provide the using method of above-mentioned conductive contact surfaces performance inline diagnosis repair system.
In order to realize first purpose, the present invention realizes by following technical scheme:
A kind of conductive contact surfaces performance inline diagnosis repair system, include impedance detection parts and electric grinding component, described impedance detection parts and electric grinding component are connected to be examined on the relay contact, and connect end and be connected with outside line by isolating switch respectively, and described impedance detection parts two ends respectively with examined relay coil and be connected with the control relay contact and open and close and the detection relay coil gets electric situation.
Further, described isolating switch includes first isolating switch and second isolating switch, and the two is opened and closed by electric grinding component control.
Further, described impedance detection parts are provided with and are used to indicate the alarm lamp of being examined the contact malfunction.
In order to realize second purpose, the present invention realizes by following technical scheme:
A kind of using method of conductive contact surfaces performance inline diagnosis repair system, it may further comprise the steps: a, electric grinding component are examined relay, prove that circuit is in no electric idle condition, and then the control isolating switch disconnects connection; B, impedance detection component controls are examined the relay contact closure and are detected contact resistance; If the c contact resistance is greater than threshold values, electric grinding component applies the grinding high-voltage pulse with triggering conductive contact surfaces is ground.
Further, also comprise the d step, after a milling cycle finishes, the impedance detection parts detect contact resistance and whether are lower than threshold values, are then to finish to grind, otherwise apply the grinding high-voltage pulse once more, if still be higher than threshold values by five milling cycle contact resistances continuously, the circular fault of then reporting to the police can not be repaired.
Further, in the described d step, the time interval is less than 30 seconds between the milling cycle.
Further, in the described c step, earlier apply the alternating-current pulse electric current on the relay contact being examined, this electric current forms voltage drop on resistance, and the equivalent capacity two ends that form in dirt and local air gap form charging voltage; When described charging voltage punctures the equivalent diode of pressure-resistant machine cupric oxide when withstand voltage greater than stained equivalent capacity, stained and oxide layer are punctured by electric current and form spark discharge, and the stained thing and the Cu oxide that adhere to can be cleared up by electric spark.
Further, the current value of described alternating-current pulse electric current can not be above 3 times of contact rated current capacity.
Further, the pulsewidth of described alternating-current pulse electric current is 100ms, and the positive and negative alternating-current pulse logarithm that single applies is 3, is spaced apart 100ms.
Further, the number of times that always applies of described alternating-current pulse electric current is 3 times, applies the on-off action that cooperates one-time contact between the alternating-current pulse electric current at every turn.
The present invention compared with prior art, its beneficial effect is:
1, realized the online detection and the online polishing of conductive contact surfaces, exempted, improved remediation efficiency and reliability greatly, lowered coefficient of losses and cost expenditure the opening and inspecting and decompose maintenance of equipment part;
2, overall structure is simply compact, and is easy to operate easy.
In order to understand the present invention more clearly, set forth the specific embodiment of the present invention below with reference to description of drawings.
Description of drawings
Fig. 1 is that the present invention is the circuit structure block diagram.
Embodiment
As shown in Figure 1, conductive contact surfaces performance inline diagnosis repair system of the present invention, include impedance detection parts and electric grinding component, described impedance detection parts and electric grinding component are connected to be examined on the relay contact, and connect end and be connected with outside line by isolating switch respectively, and described impedance detection parts two ends respectively with examined relay coil and be connected with the control relay contact and open and close and the detection relay coil gets electric situation.Further, described isolating switch includes the first isolating switch K1 and the second isolating switch K2, and the two is opened and closed by electric grinding component control.Preferably, described impedance detection parts are provided with and are used to indicate the alarm lamp T that is examined the contact malfunction.
The using method of above-mentioned conductive contact surfaces performance inline diagnosis repair system may further comprise the steps: a, electric grinding component are examined relay, prove that circuit is in no electric idle condition, and then the control isolating switch disconnects connection; B, impedance detection component controls are examined the relay contact closure and are detected contact resistance; If the c contact resistance is greater than threshold values, electric grinding component applies the grinding high-voltage pulse with triggering conductive contact surfaces is ground; After d, a milling cycle finish, the impedance detection parts detect contact resistance and whether are lower than threshold values, be then to finish to grind, otherwise apply the grinding high-voltage pulse once more, if still be higher than threshold values by five milling cycles (time interval is less than 30 seconds between the milling cycle) contact resistance continuously, the circular fault of then reporting to the police can not be repaired.
In the above-mentioned c step, earlier apply the alternating-current pulse electric current on the relay contact being examined, this electric current forms voltage drop on resistance, and the equivalent capacity two ends that form in dirt and local air gap form charging voltage; When described charging voltage punctures the equivalent diode of pressure-resistant machine cupric oxide when withstand voltage greater than stained equivalent capacity, stained and oxide layer are punctured by electric current and form spark discharge, and the stained thing and the Cu oxide that adhere to can be cleared up by electric spark.
Further, the current value of described alternating-current pulse electric current can not be above 3 times of contact rated current capacity; The pulsewidth of described alternating-current pulse electric current is 100ms, and the positive and negative alternating-current pulse logarithm that single applies is 3, is spaced apart 100ms; The number of times that always applies of described alternating-current pulse electric current is 3 times, applies the on-off action that cooperates one-time contact between the alternating-current pulse electric current at every turn.
The present invention is not limited to above-mentioned execution mode, if various changes of the present invention or modification are not broken away from the spirit and scope of the present invention, if these are changed and modification belongs within claim of the present invention and the equivalent technologies scope, then the present invention also is intended to comprise these changes and modification.
Claims (10)
1. conductive contact surfaces performance inline diagnosis repair system, include impedance detection parts and electric grinding component, it is characterized in that: described impedance detection parts and electric grinding component are connected to be examined on the relay contact, and connect end and be connected with outside line by isolating switch respectively, and described impedance detection parts two ends respectively with examined relay coil and be connected with the control relay contact and open and close and the detection relay coil gets electric situation.
2. according to the described conductive contact surfaces performance of claim 1 inline diagnosis repair system, it is characterized in that: described isolating switch includes first isolating switch and second isolating switch, and the two is opened and closed by electric grinding component control.
3. according to the described conductive contact surfaces performance of claim 1 inline diagnosis repair system, it is characterized in that: described impedance detection parts are provided with and are used to indicate the alarm lamp of being examined the contact malfunction.
4. the using method of a conductive contact surfaces performance inline diagnosis repair system is characterized in that may further comprise the steps:
A, electric grinding component are examined relay, prove that circuit is in no electric idle condition, and then the control isolating switch disconnects connection;
B, impedance detection component controls are examined the relay contact closure and are detected contact resistance;
If the c contact resistance is greater than threshold values, electric grinding component applies the grinding high-voltage pulse with triggering conductive contact surfaces is ground.
5. according to the using method of the described conductive contact surfaces performance of claim 4 inline diagnosis repair system, it is characterized in that: also comprise the d step, after a milling cycle finishes, the impedance detection parts detect contact resistance and whether are lower than threshold values, be then to finish to grind, otherwise apply the grinding high-voltage pulse once more, if still be higher than threshold values by five milling cycle contact resistances continuously, the circular fault of then reporting to the police can not be repaired.
6. according to the using method of the described conductive contact surfaces performance of claim 5 inline diagnosis repair system, it is characterized in that: in the described d step, the time interval is less than 30 seconds between the milling cycle.
7. according to the using method of the described conductive contact surfaces performance of claim 4 inline diagnosis repair system, it is characterized in that: in the described c step, earlier apply the alternating-current pulse electric current on the relay contact being examined, this electric current forms voltage drop on resistance, form charging voltage at the equivalent capacity two ends of dirt and the formation of local air gap; When described charging voltage punctures the equivalent diode of pressure-resistant machine cupric oxide when withstand voltage greater than stained equivalent capacity, stained and oxide layer are punctured by electric current and form spark discharge, and the stained thing and the Cu oxide that adhere to can be cleared up by electric spark.
8. according to the using method of the described conductive contact surfaces performance of claim 7 inline diagnosis repair system, it is characterized in that: the current value of described alternating-current pulse electric current can not surpass 3 times of contact rated current capacity.
9. the using method of described according to Claim 8 conductive contact surfaces performance inline diagnosis repair system is characterized in that: the pulsewidth of described alternating-current pulse electric current is 100ms, and the positive and negative alternating-current pulse logarithm that single applies is 3, is spaced apart 100ms.
10. according to the using method of the described conductive contact surfaces performance of claim 9 inline diagnosis repair system, it is characterized in that: the number of times that always applies of described alternating-current pulse electric current is 3 times, applies the on-off action that cooperates one-time contact between the alternating-current pulse electric current at every turn.
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| CN201110027888.4A CN102169769B (en) | 2011-01-26 | 2011-01-26 | Conductive contact surface performance online diagnosing and repairing system and using method thereof |
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| CN201110027888.4A CN102169769B (en) | 2011-01-26 | 2011-01-26 | Conductive contact surface performance online diagnosing and repairing system and using method thereof |
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| CN102169769A true CN102169769A (en) | 2011-08-31 |
| CN102169769B CN102169769B (en) | 2014-02-12 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105610382A (en) * | 2014-11-13 | 2016-05-25 | 博泽哈尔施塔特汽车零件两合公司 | Method for operating electromotive adjusting device, and electromotive adjusting device |
| CN106300232A (en) * | 2016-09-30 | 2017-01-04 | 西电通用电气自动化有限公司 | A kind of prevent relay from bouncing and accelerate circuit and the method for adhesive |
| CN107564738A (en) * | 2017-10-26 | 2018-01-09 | 国网江苏省电力公司南通供电公司 | A kind of New Type Isolating Switch dynamic/static contact repair method |
Citations (4)
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| CN2069637U (en) * | 1990-05-11 | 1991-01-16 | 中国工商银行青岛市分行 | Oxidized resistance auto-removing device for data communication line |
| CN2242520Y (en) * | 1995-07-21 | 1996-12-11 | 冯胜林 | Device for repairing electron tube |
| JP2004358516A (en) * | 2003-06-04 | 2004-12-24 | Murata Mfg Co Ltd | Resistance welding method, method for cleaning resistance welding electrode, and resistance welding apparatus |
| CN101870079A (en) * | 2010-05-25 | 2010-10-27 | 广州市地下铁道总公司 | Alternating-current electric grinding method for conductive contact surfaces |
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2011
- 2011-01-26 CN CN201110027888.4A patent/CN102169769B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2069637U (en) * | 1990-05-11 | 1991-01-16 | 中国工商银行青岛市分行 | Oxidized resistance auto-removing device for data communication line |
| CN2242520Y (en) * | 1995-07-21 | 1996-12-11 | 冯胜林 | Device for repairing electron tube |
| JP2004358516A (en) * | 2003-06-04 | 2004-12-24 | Murata Mfg Co Ltd | Resistance welding method, method for cleaning resistance welding electrode, and resistance welding apparatus |
| CN101870079A (en) * | 2010-05-25 | 2010-10-27 | 广州市地下铁道总公司 | Alternating-current electric grinding method for conductive contact surfaces |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105610382A (en) * | 2014-11-13 | 2016-05-25 | 博泽哈尔施塔特汽车零件两合公司 | Method for operating electromotive adjusting device, and electromotive adjusting device |
| CN105610382B (en) * | 2014-11-13 | 2019-11-05 | 博泽哈尔施塔特汽车零件两合公司 | For running the method and electric adjusting device of electric adjusting device |
| CN106300232A (en) * | 2016-09-30 | 2017-01-04 | 西电通用电气自动化有限公司 | A kind of prevent relay from bouncing and accelerate circuit and the method for adhesive |
| CN106300232B (en) * | 2016-09-30 | 2018-07-31 | 西电通用电气自动化有限公司 | It is a kind of to prevent relay from bouncing and accelerate the circuit being attracted and method |
| CN107564738A (en) * | 2017-10-26 | 2018-01-09 | 国网江苏省电力公司南通供电公司 | A kind of New Type Isolating Switch dynamic/static contact repair method |
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| CN102169769B (en) | 2014-02-12 |
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