CN1554954A - Detecting structure and method for relaying type relay open and close state - Google Patents
Detecting structure and method for relaying type relay open and close state Download PDFInfo
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- CN1554954A CN1554954A CNA2003101159619A CN200310115961A CN1554954A CN 1554954 A CN1554954 A CN 1554954A CN A2003101159619 A CNA2003101159619 A CN A2003101159619A CN 200310115961 A CN200310115961 A CN 200310115961A CN 1554954 A CN1554954 A CN 1554954A
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Abstract
The detecting structure for the open and close state of relay consists of oscilloscope, probe, drive signal source, driving circuit, soil, aftercurrent diode and power source. The detecting method includes: injecting positive pulse drive signal to the driving circuit with the drive signal source; detecting with the probe the positive pulse drive signal waveform in the measured point 7 of the driving circuit; and cutting off the connection between the aftercurrent diode and the coil to measure in the point 8 the smooth exponentially attenuating voltage waveform of the released relay or the ringing exponentially attenuating voltage waveform of the attracted and released relay to complete the detection of judging the open and close state of relay. The present invention uses common oscilloscope in the detection and is saving in cost, simple and practical.
Description
Technical field: the invention belongs to the relay relay, relate to a kind of detection architecture and method to the relay folding condition.
Background technology:
For closed type relay or inconvenient detection of opening the relay and the electromagnet contact folding condition of outer cover, generally all need special-purpose instrument and equipment to examine.For manufacturer, relay is put into to detect on the special-purpose instrument and equipment test board be necessary and easily.Yet for most of users, be unpractical for using relay to be equipped with special-purpose checkout equipment.In addition, even checkout equipment is arranged, be to being installed on the equipment, and using the relay of work on the spot to carry out the detection of contact folding condition, also very inconvenience.
Detailed content of the present invention:
As shown in Figure 1, it comprises oscillograph 1, probe 2, source driving signal 3, driving circuit 4, coil 5, fly-wheel diode 6, measurement point 7, measured point 8, power supply 9, probe 2 is connected with measurement point 7, measured point 8 respectively as required, source driving signal 3 is linked to each other with driving circuit 4, driving circuit 4 links to each other with fly-wheel diode 6 with coil 5, and power supply 9 links to each other with fly-wheel diode 6 with coil 5.
Measuring method of the present invention is:
A at first starts source driving signal, injects the positive pulse drive signal as shown in Figure 2 to driving circuit;
The b probe places the measurement point 7 of driving circuit, observes the detected driving circuit positive pulse drive signal waveform of probe as shown in Figure 2 with oscillograph;
C at first disconnects the point that fly-wheel diode links to each other with coil when measurement point 8;
D places probe on the measured point 8 again, observe probe with oscillograph and detect the voltage waveform of coil-end shown in Fig. 3 (a), obtain the smoothness index evanescent voltage waveform of not adhesive of the armature of relay and release this moment, observe probe with oscillograph and detect the voltage waveform of coil-end shown in Fig. 3 (b), obtain the ring formula exponential damping voltage waveform of armature of relay adhesive and release this moment, then finishes the detection of the folding condition of judging the armature of relay.
Its principle is: because the adhesive of the armature of relay and variation and the fluctuating that release can cause the relay coil inductance value, and corresponding t in as Fig. 2
2When driving voltage was zero constantly, the instantaneous of the electrorheological cancellation in the coil can produce self-induced e.m.f, and the size of this self-induced e.m.f is relevant with winding inductance quantity.Do not change if armature, then has this not by adhesive and release, the voltage overshoot waveform is smooth exponential decay curve, shown in Fig. 3 (a).If armature is by adhesive and release, then voltage waveform is ring formula exponential decay curve shown in Fig. 3 (b).Detection method of the present invention is exactly to judge the folding condition of relay by the waveform voltage signal of observing the coil terminal voltage.
Major advantage of the present invention is to adopt the general testing apparatus-oscillograph of electronics to detect the relay relay, the instrument and equipment that has solved background technology utilization special use could be to the detecting of relay relay, difficulty that most of user does not possess special inspecting equipment, and special-purpose checkout equipment is in the problem of using execute-in-place inconvenience, the present invention has saved the special inspecting equipment spending, detection method is simple and easy to do, be particluarly suitable for the working site and carry out the fault detect of relay relay, have very high practical value.For there not being the user of checkout equipment, a kind of specialized instrument and equipment that need not is provided, can detect the detection architecture and the method for such device contact folding condition.
Description of drawings:
Fig. 1 is a structural representation of the present invention
Fig. 2 is a drive signal waveform of the present invention
Fig. 3 is armature adhesive of the present invention and release conditions signal waveform
Embodiment:
The embodiment of detection architecture of the present invention is as shown in drawings:
It comprises oscillograph 1, oscilloprobe 2, source driving signal 3, driving circuit 4, coil 5, fly-wheel diode 6, measurement point 7, measured point 8, power supply 9.Oscillograph 1 adopts a general purpose oscialloscope; Probe 2 is the probe on the oscillograph 1; Source driving signal 3 is selected the source driving signal of measured relay; Driving circuit 4 is selected the driving circuit of measured relay; Coil 5 is selected the coil of measured relay; Fly-wheel diode 6 is selected the fly-wheel diode of measured relay; Measurement point 7 is the measurement point of measured relay driving circuit 4; Measured point 8 is the measurement point of measured relay coil 5 and driving circuit 4 junctions; The power supply of power supply 9 measured relay.
By the measurement point 8 that finds measured relay coil 5 ends shown in Figure 1, disconnect the fly-wheel diode on this aspect, energized, to the measured relay input drive signal, the signal waveform of observation test point 8 on oscillograph is illustrated in figure 3 as the armature of relay not by adhesive and release and normal adhesive of the armature of relay and the waveform of releasing.
Embodiment as shown in Figure 1, it comprises oscillograph 1, oscilloprobe 2, relay drive signal source 3, relay drive circuit 4, relay coil 5, relay fly-wheel diode 6, measurement point 7, measured point 8, power supply 9.Relay drive signal source 3 is linked to each other with relay drive circuit 4, and relay drive circuit 4 links to each other with relay coil 5, relay fly-wheel diode 6 respectively, and power supply 9 links to each other with relay coil 5, relay fly-wheel diode 6 respectively.
Measuring method of the present invention is: at first the starting relay source driving signal 3, inject the positive pulse drive signal to relay drive circuit 4, oscilloprobe 2 places on the measurement point 7 of relay drive circuit 4, the measured point 8, check signal waveform, when oscilloprobe 2 places on the measurement point 7, on oscillograph 1, can measure signal as shown in Figure 2, place the signal that can measure on the measured point 8 as shown in Figure 3.
Claims (2)
1, a kind of detection method of relay relay folding condition is characterized in that step:
A at first starts source driving signal, injects the positive pulse drive signal as shown in Figure 2 to driving circuit;
The b probe places the measurement point 7 of driving circuit, observes the detected driving circuit positive pulse drive signal waveform of probe as shown in Figure 2 with oscillograph;
C at first disconnects the point that fly-wheel diode links to each other with coil when measurement point 8;
D places probe on the measured point 8 again, observe the voltage waveform that probe detects coil-end with oscillograph, obtain the smooth exponential damping voltage waveform of not adhesive of the armature of relay and release this moment, or observe the voltage waveform that probe detects coil-end with oscillograph, obtain the ring formula exponential damping voltage waveform of armature of relay adhesive and release this moment, then finishes the detection of the folding condition of judging the armature of relay.
2, a kind of detection architecture of relay relay folding condition, it is characterized in that: it comprises oscillograph 1, probe 2, source driving signal 3, driving circuit 4, coil 5, fly-wheel diode 6, measurement point 7, measured point 8, power supply 9, probe 2 is connected with measurement point 7, measured point 8 respectively as required, source driving signal 3 is linked to each other with driving circuit 4, driving circuit 4 links to each other with fly-wheel diode 6 with coil 5, and power supply 9 links to each other with fly-wheel diode 6 with coil 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2003101159619A CN1554954A (en) | 2003-12-19 | 2003-12-19 | Detecting structure and method for relaying type relay open and close state |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2003101159619A CN1554954A (en) | 2003-12-19 | 2003-12-19 | Detecting structure and method for relaying type relay open and close state |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1554954A true CN1554954A (en) | 2004-12-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CNA2003101159619A Pending CN1554954A (en) | 2003-12-19 | 2003-12-19 | Detecting structure and method for relaying type relay open and close state |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102540070A (en) * | 2012-02-08 | 2012-07-04 | 广东易事特电源股份有限公司 | Control and detection circuit for four relays and detection method thereof |
| CN102540071A (en) * | 2012-02-15 | 2012-07-04 | 合肥美的荣事达电冰箱有限公司 | Relay device and relay life test device |
| CN105403829A (en) * | 2015-11-30 | 2016-03-16 | 中航飞机股份有限公司西安飞机分公司 | Detection method of airborne relay |
| CN107064791A (en) * | 2016-04-25 | 2017-08-18 | 利萨·德雷克塞迈尔有限责任公司 | Apparatus and method for monitoring the high voltage connector in vehicle |
| CN108508323A (en) * | 2018-05-04 | 2018-09-07 | 德州学院 | It is automobile-used to show lamp-based circuit detector |
| CN109116229A (en) * | 2018-10-23 | 2019-01-01 | 成都安可信电子股份有限公司 | A kind of electromagnetic valve work condition detecting system |
| CN112867931A (en) * | 2018-10-19 | 2021-05-28 | 泰瑞达公司 | Automatic test equipment with relay thermal switch detection function |
-
2003
- 2003-12-19 CN CNA2003101159619A patent/CN1554954A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102540070A (en) * | 2012-02-08 | 2012-07-04 | 广东易事特电源股份有限公司 | Control and detection circuit for four relays and detection method thereof |
| CN102540070B (en) * | 2012-02-08 | 2013-11-13 | 广东易事特电源股份有限公司 | Control and detection circuit for four relays and detection method thereof |
| CN102540071A (en) * | 2012-02-15 | 2012-07-04 | 合肥美的荣事达电冰箱有限公司 | Relay device and relay life test device |
| CN105403829A (en) * | 2015-11-30 | 2016-03-16 | 中航飞机股份有限公司西安飞机分公司 | Detection method of airborne relay |
| CN107064791A (en) * | 2016-04-25 | 2017-08-18 | 利萨·德雷克塞迈尔有限责任公司 | Apparatus and method for monitoring the high voltage connector in vehicle |
| US10215789B2 (en) | 2016-04-25 | 2019-02-26 | Lisa Draexlmaier Gmbh | Device and method for monitoring a high-voltage contactor in a vehicle |
| CN108508323A (en) * | 2018-05-04 | 2018-09-07 | 德州学院 | It is automobile-used to show lamp-based circuit detector |
| CN112867931A (en) * | 2018-10-19 | 2021-05-28 | 泰瑞达公司 | Automatic test equipment with relay thermal switch detection function |
| CN109116229A (en) * | 2018-10-23 | 2019-01-01 | 成都安可信电子股份有限公司 | A kind of electromagnetic valve work condition detecting system |
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