CN210181172U - Small-size light current control relay automatic checkout device - Google Patents
Small-size light current control relay automatic checkout device Download PDFInfo
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- CN210181172U CN210181172U CN201920349672.1U CN201920349672U CN210181172U CN 210181172 U CN210181172 U CN 210181172U CN 201920349672 U CN201920349672 U CN 201920349672U CN 210181172 U CN210181172 U CN 210181172U
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Abstract
The utility model relates to a small-size light current control relay automatic checkout device belongs to industry automatic control technical field. The problem of lacking the small-size weak current control relay automatic checkout device of higher accuracy that is fit for using at the production field is solved. The utility model discloses a relay base, constant current power supply and contact switch on indicator, constant current power supply's current output terminal connection is to the coil current access terminal of relay base, installs the relay that detects on the relay base, and the contact output terminal of relay base and the contact input terminal connection of contact switch on indicator, constant current power supply and contact switch on indicator all are connected with the power through the working power source interface, it passes through communication interface and is connected with the automated inspection controlgear to examine test table. The device is connected, and the relay to be detected is inserted into the relay base, so that the relay detection work can be completed through automatic detection software. The utility model discloses can improve accuracy and the detection efficiency that the relay detected effectively.
Description
Technical Field
The utility model relates to a small-size light current control relay automatic checkout device belongs to industry automatic control technical field, in particular to power station control technical field.
Background
The industrial control field adopts a large amount of small weak current control relays, which is one of the key components of an automatic control system. Common control coil voltage levels are several types, 24VDC, 110 VDC, 220VAC, etc. The quality of the relay is directly related to the quality of the control quality and the reliability, and even determines the safety of the control system. Except that the relay needs to be detected when leaving the factory, after the relay runs for a period of time, the relay also needs to be detected regularly, for example, the chinese patent with the application number of 201720199985.4, and particularly, the relay which is electrified for a long time is detected, so that problems can be found in advance, and the relay can be replaced in time to eliminate potential safety hazards in time.
Particularly, in the automatic control operation process of large and medium thermal power stations and hydropower stations, the accident of shutdown caused by the fault of the long belt electric relay sometimes occurs.
Due to the lack of a small-sized weak current control relay automatic detection device suitable for being used in a production field, technicians usually simply and roughly judge by means of appearance checking, hand touching, service time and the like only by experience, effective judgment cannot be made, and accidents caused by control relay faults cannot be scientifically prevented and controlled.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome the above-mentioned not enough that exists among the prior art, and provide a small-size weak current control relay automatic checkout device who is fit for the field usage, can improve the accuracy and the detection efficiency that the relay detected effectively.
The utility model provides a technical scheme that above-mentioned problem adopted is: the automatic detection device for the small-sized weak current control relay comprises a detection table and automatic detection control equipment, wherein the detection table is connected with the automatic detection control equipment; the current output terminal of the constant current power supply is connected to a coil current access terminal of the relay base, a relay to be detected is installed on the relay base, the contact output terminal of the relay base is connected with a contact input terminal of the contact conduction indicator, the constant current power supply and the contact conduction indicator are connected with a power supply through a working power supply interface, and the detection platform is connected with automatic detection control equipment through a communication interface.
Further, the relay base is a 24VDC relay base, and the constant current power supply is a 24VDC constant current power supply.
Further, the power supply is a 220V alternating current power supply.
The working method of the automatic detection device for the small-sized weak current control relay comprises the following steps that according to the number of relays to be detected, a relay base, a constant current power supply and a contact conduction indicator are assembled, a working power supply interface and a software communication interface are configured, and the software communication interface is connected to automatic detection control equipment; and then inserting the relay to be detected into the relay base, switching on the working power supply, and controlling the conduction of the relay contact by increasing or decreasing the output current of the constant current power supply so as to detect the minimum on-off current of the relay and the condition whether the contact is adhered or not. According to the different quantity of the relays to be detected, the detection tables of the intelligent small-sized weak current control relays are slightly different, and the detection principle and the detection method are the same.
Further, automatic control software is arranged in the automatic detection control device, and the functions of the automatic control software include: the current is automatically output, automatically increased and decreased, the on-off indication and maintenance of the contact, the threshold current is maintained, the detection record table is automatically generated, and the printing is carried out.
Furthermore, on an operation interface of automatic control software in the automatic detection control equipment, a constant current power supply in the detection table is controlled to output current, the relay coil is driven, and the output value of the drive current of the relay coil is changed until the output contact of the relay acts.
Compared with the prior art, the utility model, have following advantage and effect: the device of the utility model is reasonable in design, have convenient, swift, automatic, accurate characteristics, can improve accuracy and detection efficiency that the relay detected effectively.
Drawings
Fig. 1 is a schematic diagram of the control relay detection principle and the simple device connection relationship in the embodiment of the present invention.
Fig. 2 is the embodiment of the utility model provides an in small-size weak current control relay automatic checkout device's structural schematic.
In the figure: the device comprises a relay base 1, a constant current power supply 2, a contact conduction indicator 3, a communication interface 4, automatic detection control equipment 5 and a working power supply interface 6.
Detailed Description
The present invention will be described in further detail by way of examples with reference to the accompanying drawings, which are illustrative of the present invention and are not intended to limit the present invention.
Examples are given.
Referring to fig. 1 to 2, the automatic detection device for the small weak current control relay in the embodiment includes a detection table and an automatic detection control device 5, the detection table is connected with the automatic detection control device 5, the detection table includes a relay base 1, a constant current power supply 2 and a contact conduction indicator 3, the relay base 1 is provided with a coil current access terminal and a contact output terminal, the constant current power supply 2 is provided with a current output terminal and an output current indicator, and the contact conduction indicator 3 is provided with a contact input terminal and an indicator light; the current output terminal of the constant current power supply 2 is connected to the coil current access terminal of the relay base 1, a relay to be detected is installed on the relay base 1, the contact output terminal of the relay base 1 is connected with the contact input terminal of the contact conduction indicator 3, the constant current power supply 2 and the contact conduction indicator 3 are connected with a power supply through a working power supply interface 6, and the detection platform is connected with the automatic detection control equipment 5 through a communication interface 4.
The relay base 1 is a 24VDC relay base 1, the constant current power supply 2 is a 24VDC constant current power supply 2, and the power supply is a 220V alternating current power supply.
The working method of the automatic detection device of the small-sized weak current control relay comprises the following steps that according to the number of relays to be detected, the relay base 1, the constant current power supply 2 and the contact conduction indicator 3 are assembled, the working power supply interface 6 and the software communication interface 4 are configured, and the software communication interface 4 is connected to the automatic detection control equipment 5; then, a relay to be detected is inserted into the relay base 1, a working power supply is switched on, the output current of the constant current power supply 2 is increased or decreased, the conduction of the relay contact is controlled, and the minimum on-off current of the relay and the condition whether the contact is adhered or not can be detected. According to the different quantity of the relays to be detected, the detection tables of the intelligent small-sized weak current control relays are slightly different, and the detection principle and the detection method are the same.
Automatic control software is arranged in the automatic detection control equipment 5, and the functions of the automatic control software comprise: the current is automatically output, automatically increased and decreased, the on-off indication and maintenance of the contact, the threshold current is maintained, the detection record table is automatically generated, and the printing is carried out.
On an operation interface of automatic control software in the automatic detection control equipment 5, the constant current power supply 2 in the detection table is controlled to output current to drive a relay coil, and the output value of the drive current of the relay coil is changed until the output contact of the relay acts.
The implementation process is as follows:
1. the coil current inlet terminal of the 24VDC relay base 1 is connected to the current output terminal of the 24VDC constant current source 2.
2. The contact input terminal of the contact conduction indicator 3 is connected to the contact output terminal of the 24VDC relay base 1.
3. The communication interface 4 is connected with the automatic detection control equipment 5.
4. The operating power supply interface 6 is connected to a 220VAC power supply.
5. And opening automatic detection software.
6. A relay to be tested is inserted.
7. On a special automatic control software interface in the automatic detection control equipment 5, the constant current power supply 2 in the detection table is controlled to output current to drive a relay coil. The initial current was set to 24 VDC. And recording the original state data of the relay to be tested.
8. And changing the output value of the driving current of the coil of the relay through automatic control software until the output contact of the relay acts, and recording the action value.
9. And repeating the steps 6-8 until all the relays to be detected are detected.
10. And after the detection is finished, the automatic detection software is closed, and the working power supply is closed.
Although the present invention has been described with reference to the above embodiments, it should not be construed as being limited to the scope of the present invention, and any modifications and alterations made by those skilled in the art without departing from the spirit and scope of the present invention should fall within the scope of the present invention.
Claims (3)
1. The automatic detection device for the small-sized weak current control relay comprises a detection table and automatic detection control equipment (5), wherein the detection table is connected with the automatic detection control equipment (5), and is characterized in that the detection table comprises a relay base (1), a constant current power supply (2) and a contact conduction indicator (3), a coil current access terminal and a contact output terminal are arranged on the relay base (1), a current output terminal and an output current indicator meter are arranged on the constant current power supply (2), and a contact input terminal and an indicator lamp are arranged on the contact conduction indicator (3); the current output terminal of the constant current power supply (2) is connected to a coil current access terminal of the relay base (1), a relay to be detected is installed on the relay base (1), the contact output terminal of the relay base (1) is connected with a contact input terminal of the contact conduction indicator (3), the constant current power supply (2) and the contact conduction indicator (3) are connected with a power supply through a working power supply interface (6), and the detection platform is connected with automatic detection control equipment (5) through a communication interface (4).
2. The automatic small-sized weak current control relay detection device according to claim 1, wherein the relay base (1) is a 24VDC relay base (1), and the constant current power supply (2) is a 24VDC constant current power supply (2).
3. The automatic detection device for the small weak current control relay according to claim 1, wherein the power supply is a 220V alternating current power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920349672.1U CN210181172U (en) | 2019-03-19 | 2019-03-19 | Small-size light current control relay automatic checkout device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920349672.1U CN210181172U (en) | 2019-03-19 | 2019-03-19 | Small-size light current control relay automatic checkout device |
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| CN210181172U true CN210181172U (en) | 2020-03-24 |
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| CN201920349672.1U Active CN210181172U (en) | 2019-03-19 | 2019-03-19 | Small-size light current control relay automatic checkout device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109959866A (en) * | 2019-03-19 | 2019-07-02 | 华电电力科学研究院有限公司 | A kind of small-sized vulnerabilities scan relay automatic detection device and its working method |
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2019
- 2019-03-19 CN CN201920349672.1U patent/CN210181172U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109959866A (en) * | 2019-03-19 | 2019-07-02 | 华电电力科学研究院有限公司 | A kind of small-sized vulnerabilities scan relay automatic detection device and its working method |
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