CN201294200Y - Device for monitoring relay contact bounce - Google Patents
Device for monitoring relay contact bounce Download PDFInfo
- Publication number
- CN201294200Y CN201294200Y CNU2008201554851U CN200820155485U CN201294200Y CN 201294200 Y CN201294200 Y CN 201294200Y CN U2008201554851 U CNU2008201554851 U CN U2008201554851U CN 200820155485 U CN200820155485 U CN 200820155485U CN 201294200 Y CN201294200 Y CN 201294200Y
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- China
- Prior art keywords
- relay
- contact
- resistance
- contact bounce
- utmost point
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- Expired - Fee Related
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Abstract
The utility model discloses a contact bounce monitoring device of a relay, wherein a light-emitting diode L is connected in series with the A, C electrodes of a thyristors S C R, a charge-discharge circuit composed of a resistance R1 and a capacitance C is connected with the two ends of a normally-opened contact K3 of a detected relay, and the contacts of the resistance R1 and the capacitance C are connected with the G electrode of the S C R. The coil current of a coil J3 of the detected relay is monitored through a current meter A connected in series. The different thresholds of contact bounce time of the relay can be set through adjusting the values of the resistance R1 and the capacitance C, thereby effectively monitoring the contact bounce condition of the relay. The contact bounce monitoring device solves the problems of large occupied device resources and expansive cost in an existing monitoring device, and obtains the beneficial effects of simple structure, convenient use and maintenance, low cost, stable performance and the like.
Description
Technical field
The utility model relates to a kind of relay contact bounce monitoring arrangement.
Background technology
At present, on high reliability industrial equipments such as space flight, aviation, when relating to the supervisory relay contact bounce, generally all can select commercially available relay tester for use, when needs monitor a plurality of relay contact, also will be equipped with the relay tester of respective numbers, it is big that this method takies device resource, with high costs.
The utility model content
To take device resource big in order to solve prior art, problem such as with high costs, and the purpose of this utility model is to provide a kind of relay contact bounce monitoring arrangement.Utilize the utility model, realize economic, efficient, relay contact bounce supervision reliably.
In order to reach above-mentioned utility model purpose, the utility model is that the technical scheme that its technical problem of solution is adopted provides a kind of relay contact bounce monitoring arrangement, and when being applied to the relay normally open contact supervision, this device comprises:
Light-emitting diode L connects with A, the C utmost point of controllable silicon SCR, is connected by the positive and negative terminal of K switch 1 with direct current 6V power supply; Resistor R 1 is connected with the normally opened contact K3 of measured relay, is connected with the positive and negative terminal of direct current 6V power supply; Relay contact K3 two ends also are connected to the charge-discharge circuit of being made up of resistance R 1 and capacitor C, and the contact of resistance R 1 and capacitor C is connected with the G utmost point of SCR; The coil J3 of measured relay is connected with relay power direct current 27V by K switch 2, and the ammeter A pilot wire loop current by being connected in series.
When being applied to the supervision of relay normally-closed contact, the normally-closed contact K3 of above-mentioned measured relay is serially connected between resistance R 1 and the R2, is connected with the G utmost point of SCR by R1.
A kind of relay contact bounce monitoring arrangement of the utility model owing to take above-mentioned technical scheme, utilizes the silicon controlled characteristic, adds the function for monitoring of RC charge-discharge circuit realization relay contact.The threshold values of different relay contact tripping time just can be set by the value of adjusting resistance R and capacitor C; Get final product the supervisory relay contact bounce and whether surpass the requirement of technical indicator.Utilize the utility model, can carry out the relay follow-up work of a large amount of passages, efficient is greatly improved.Therefore, problem such as the utility model has solved prior art, and to take device resource big, with high costs, it is simple to have obtained product structure, and working service is convenient, and cost is low, beneficial effects such as stable performance.
Description of drawings
Fig. 1 is that the utility model is applied to the electrical schematic diagram that relay normally open contact monitors;
Fig. 2 is that the utility model is applied to the electrical schematic diagram that the relay normally-closed contact monitors.
Embodiment
Below in conjunction with description of drawings preferred embodiment of the present utility model.
Fig. 1 is that the utility model is applied to the electrical schematic diagram that relay normally open contact monitors; The left-half of figure is a relay contact bounce monitor display unit of the present invention, and right half part is the coil current monitoring arrangement of detected relay.Shown in the embodiment of Fig. 1, this device comprises:
Light-emitting diode L connects with A, the C utmost point of controllable silicon SCR, is connected by the positive and negative terminal of K switch 1 with direct current 6V power supply; Resistor R 1 is connected with the normally opened contact K3 of measured relay, is connected with the positive and negative terminal of direct current 6V power supply; Relay contact K3 two ends also are connected to the charge-discharge circuit of being made up of resistance R 1 and capacitor C, and the contact of resistance R 1 and capacitor C is connected with the G utmost point of SCR; The coil J3 of measured relay is connected with relay power direct current 27V by K switch 2, and the ammeter A pilot wire loop current by being connected in series.
Among the embodiment of the present utility model, relay power provides the required power supply of relay coil, adopts linear integrated power supply; Output shows the working condition that adopts light-emitting diode to represent relay contact by light and shade; Coil current monitors the electric current that shows relay coil by ammeter A, to determine the working condition of relay coil; The contact monitors adopts the RC charge-discharge circuit to form in conjunction with the characteristic of thyristor.
Below operation principle of the present utility model is described:
Thyristor (controllable silicon) is a kind of special diode, thyristor A and C end conducting when the voltage of the thyristor G utmost point reaches threshold values.This device utilizes the characteristic of thyristor (controllable silicon), adds the function for monitoring of RC charge-discharge circuit realization relay contact.After relay power is given relay coil energization, relay contact K3 closure, indicator light L does not work; When relay contact K3 tripping, the work of RC charge-discharge circuit, the electric capacity charging, when electric capacity charges to the threshold voltage of the thyristor G utmost point, thyristor A and the conducting of C end, indicator light is luminous, the report fault.But when the relay contact tripping time did not satisfy electric capacity and charges to thyristor G threshold values, indicator light did not work.Therefore,, the threshold values of different relay contact tripping time just can be set, thereby the supervisory relay contact bounce is whether above the requirement of technical indicator by the value of adjusting resistance R and capacitor C according to the specification requirement of relay.
Fig. 2 is that the utility model is applied to the electrical schematic diagram that the relay normally-closed contact monitors, the normally-closed contact K3 of measured relay is serially connected between resistance R 1 and the R2, is connected with the G utmost point of SCR by R1.Its operation principle is identical with circuit shown in Figure 1.
From the above mentioned, product structure of the present utility model is simple, and working service is convenient, and cost is low, and stable performance can also be carried out the relay follow-up work of a large amount of passages, and efficient is greatly improved.
Claims (2)
1, a kind of relay contact bounce monitoring arrangement is characterized in that, this device comprises:
Light-emitting diode L connects with A, the C utmost point of controllable silicon SCR, is connected by the positive and negative terminal of K switch 1 with direct current 6V power supply; Resistor R 1 is connected with the normally opened contact K3 of measured relay, is connected with the positive and negative terminal of direct current 6V power supply; Relay normally open contact K3 two ends also are connected to the charge-discharge circuit of being made up of resistance R 1 and capacitor C, and the contact of resistance R 1 and capacitor C is connected with the G utmost point of SCR; The coil J3 of measured relay is connected with relay power direct current 27V by K switch 2, by the ammeter A pilot wire loop current of serial connection.
2, relay contact bounce monitoring arrangement as claimed in claim 1 is characterized in that: the normally-closed contact K3 of described measured relay is serially connected between resistance R 1 and the R2, is connected with the G utmost point of SCR by R1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201554851U CN201294200Y (en) | 2008-11-18 | 2008-11-18 | Device for monitoring relay contact bounce |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201554851U CN201294200Y (en) | 2008-11-18 | 2008-11-18 | Device for monitoring relay contact bounce |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201294200Y true CN201294200Y (en) | 2009-08-19 |
Family
ID=41007682
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201554851U Expired - Fee Related CN201294200Y (en) | 2008-11-18 | 2008-11-18 | Device for monitoring relay contact bounce |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201294200Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102841310A (en) * | 2011-06-24 | 2012-12-26 | 上海航天设备制造总厂 | Relay contact continuity checking circuit |
| CN102097253B (en) * | 2009-12-10 | 2013-10-23 | 西门子公司 | Control circuit |
| CN105304411A (en) * | 2014-07-24 | 2016-02-03 | 海德堡印刷机械股份公司 | Relay monitoring |
-
2008
- 2008-11-18 CN CNU2008201554851U patent/CN201294200Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102097253B (en) * | 2009-12-10 | 2013-10-23 | 西门子公司 | Control circuit |
| CN102841310A (en) * | 2011-06-24 | 2012-12-26 | 上海航天设备制造总厂 | Relay contact continuity checking circuit |
| CN105304411A (en) * | 2014-07-24 | 2016-02-03 | 海德堡印刷机械股份公司 | Relay monitoring |
| CN105304411B (en) * | 2014-07-24 | 2019-01-08 | 海德堡印刷机械股份公司 | Relay monitoring |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Shanghai Aerospace Equipment Technology Research Institute and God called the firmament Assignor: Shanghai Aerospace Equipment Manufacturing General Factory Contract record no.: 2014310000031 Denomination of utility model: Device for monitoring relay contact bounce Granted publication date: 20090819 License type: Exclusive License Record date: 20140227 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090819 Termination date: 20141118 |
|
| EXPY | Termination of patent right or utility model |