CN201335866Y - Connection test device - Google Patents
Connection test device Download PDFInfo
- Publication number
- CN201335866Y CN201335866Y CNU2008201580184U CN200820158018U CN201335866Y CN 201335866 Y CN201335866 Y CN 201335866Y CN U2008201580184 U CNU2008201580184 U CN U2008201580184U CN 200820158018 U CN200820158018 U CN 200820158018U CN 201335866 Y CN201335866 Y CN 201335866Y
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- China
- Prior art keywords
- plc controller
- relay
- external plug
- test device
- module
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- Expired - Lifetime
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Abstract
The utility model discloses a connection test device, which comprises a PLC controller, a touch screen, an external plug and a frequency signal acquisition circuit; wherein the touch screen is connected with the PLC controller; the PLC controller comprises an analog input module, a digital input module and a digital output module; wherein the analog input module, the digital input module and the digital output module are connected with the external plug; and one end of the frequency signal acquisition circuit is connected with the analog input module of the PLC controller, and the other end thereof is connected with the external plug. By adopting the connection device for connection detecting, the external plug is only needed to be connected at the corresponding test point, then corresponding program is run to complete the detection; and different programs can be selected through the touch screen for different monitoring points, and the connection test device has good universality and low manufacturing cost.
Description
Technical field
The utility model relates to a kind of proving installation, particularly a kind of whether device of conducting of electric device that detects.
Background technology
For some large-scale electric units, go to toward carrying out continuity test in energising.So-called conducting is carried out omnibearing functional check to electric unit fuselage electrical system exactly.Because electric unit, the spy is some large-scale electric unit electrical system complex circuit fully, unavoidably can be wrong when assembling.If do not carry out conducting, these mistakes will reflect when zero load is debugged, and increase the short circuit of unit generation electric-control system, open a way even burn out the possibility of the fault of element, have prolonged the time of debugging; And after online, replacement of element is very inconvenient, has increased the workload of assembling.Before equipment debugging, carry out conducting, can the very convenient mistake that finds fast and get rid of fuselage, improved the speed of equipment debugging greatly.Generally can use multimeter or artificial conducting platform when carrying out checking now, but for some large-scale electrical equipments, very many of electric terminal tend to waste a large amount of time when only using multimeter or manually-operated conducting platform to check, work efficiency is very low.And to often will being complementary with the system of electrical system itself with some special conducting devices, compatible bad, and comparatively involve great expense, production cost increased.
The utility model content
At above-mentioned the deficiencies in the prior art, it is good that the purpose of this utility model provides a kind of compatibility, cheap automatic control continuity test device.
Embodiment of the present utility model is achieved through the following technical solutions:
A kind of continuity test device, comprise PLC controller, touch-screen, external plug and frequency signal Acquisition Circuit, described touch-screen is connected with the PLC controller, described PLC controller comprises analog quantity load module, digital quantity input module and digital quantity output module, described analog quantity load module, digital quantity input module and digital quantity output module are connected with external plug, described frequency signal Acquisition Circuit one end is connected with the analog quantity load module of described PLC controller, and the described frequency collection circuit other end is connected with external plug.
Based on above-mentioned principal character, described frequency signal Acquisition Circuit comprises at least one D/A change-over circuit and relay one and relay two, the output terminal of described D/A change-over circuit is connected with the analog quantity load module of PLC controller, the input end of described D/A change-over circuit is connected with the contact switch of relay one, relay two respectively, the other end of the contact switch of relay one, relay two is connected with external plug, and the control coil of described two relays is connected with the PLC controller.
Based on above-mentioned principal character, described signal gathering unit comprises 8 D/A change-over circuits.
Based on above-mentioned principal character, this device also comprises a 24V direct supply, described direct supply is connected with contact switch one end and a diode cathode of at least one relay by switch, the other end of described relay contact switch is connected with external plug, the control coil of described relay is connected with the PLC controller, and the anode of described diode is connected with the digital input port of PLC controller.
Based on above-mentioned principal character, described conducting device is installed on the dolly.
When adopting this conducting device to do conduction detection, only external plug need be connected on corresponding test point, move corresponding program then and can finish detection, can select different programs by touch-screen according to different monitoring points, versatility is good, and cheap.
Description of drawings
Fig. 1 is the structural representation of the continuity test device that provides of the utility model embodiment
Fig. 2 is the connection diagram of the continuity test device medium frequency signal acquisition circuit that provides of the utility model embodiment.
Fig. 3 is the connection diagram of external power supply and digital input port holding circuit in the continuity test device that provides of the utility model embodiment.
Embodiment
Below in conjunction with accompanying drawing, embodiment is described in detail to the utility model.
As shown in Figure 1, as an embodiment of the present utility model, this continuity test device comprises a PLC controller, this PLC controller comprises digital signal load module, simulating signal load module, digital signal output module, the analog quantity load module is connected with external plug by the frequency signal Acquisition Circuit, all directly be connected with external plug on digital signal load module, digital signal output module and the simulating signal load module, the PLC controller also is connected with a touch-screen.This device is when testing, and the type of Ce Shi electrical node is selected different plugs to be inserted in the node place, and moved corresponding program by touch-screen as required, can find out the connection situation of the electrical node of test from touch-screen, finishes test.
Fig. 2 is the connection diagram of frequency signal Acquisition Circuit, because it is more at the output point of electrical equipment medium frequency signal, and the port of the frequency signal acquisition module of PLC controller is limited, comprise 8 D/A change-over circuits in this circuit, the output terminal of D/A change-over circuit is connected with the analog quantity load module of PLC controller, the input end of D/A change-over circuit is connected with an end of the contact switch of relay J 13 and J15 respectively, different with the external plug respectively contact pin of the other end of the contact switch of J13 and J15 is connected, and the control coil of J13 and J15 relay is connected with the PLC controller.Can be during this circuit working according to different needs, the closure of control J13 or J15 relay, disconnection realize the test to different test points.
Because in the continuity test process; when some electric components needs external power supply (as elements such as solenoid valve, electromagnet) and these elements such as 2Y757 to be turned off; have instantaneous big electric current; be easy to the load module of PLC is burnt out; for reason given above, the utility model also comprises a 24V direct supply and a PLC load module port protection circuit.As shown in Figure 3, the 24V power supply is connected with an end of the switch contact of relay J 4 and the negative electrode of diode by switch S 4, the other end of relay J 4 switch contacts connects with external plug, the anode of diode is connected with PLC load module port, according to what of the electrical node of required test, can select the relay of different figure places, the control coil of relay J 4 is connected with PLC.When S4 disconnected, the PLC time-delay disconnected relay J 4, realizes afterflow by fly-wheel diode, the protection load module.
Technique scheme just to the explanation of the utility model embodiment, should not be construed as restriction of the present utility model, and any change that all those skilled in the art make according to thought of the present utility model is all within the novel protection domain of this reality.
Claims (5)
1. continuity test device, it is characterized in that: this device comprises PLC controller, touch-screen, external plug and frequency signal Acquisition Circuit, described touch-screen is connected with the PLC controller, described PLC controller comprises analog quantity load module, digital quantity input module and digital quantity output module, described analog quantity load module, digital quantity input module and digital quantity output module are connected with external plug, described frequency signal Acquisition Circuit one end is connected with the analog quantity load module of described PLC controller, and the described frequency collection circuit other end is connected with external plug.
2. a kind of continuity test device as claimed in claim 1, it is characterized in that: described frequency signal Acquisition Circuit comprises at least one D/A change-over circuit and relay one and relay two, the output terminal of described D/A change-over circuit is connected with the analog quantity load module of PLC controller, the input end of described D/A change-over circuit is connected with the contact switch of relay one, relay two respectively, the other end of the contact switch of relay one, relay two is connected with external plug, and the control coil of described two relays is connected with the PLC controller.
3. a kind of continuity test device as claimed in claim 2 is characterized in that: described signal gathering unit comprises 8 D/A change-over circuits.
4. a kind of continuity test device as claimed in claim 3, it is characterized in that: this device also comprises a 24V direct supply, described direct supply is connected with contact switch one end and a diode cathode of at least one relay by switch, the other end of described relay contact switch is connected with external plug, the control coil of described relay is connected with the PLC controller, and the anode of described diode is connected with the digital input port of PLC controller.
5. a kind of continuity test device as claimed in claim 4, it is characterized in that: described conducting device is installed on the dolly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201580184U CN201335866Y (en) | 2008-12-26 | 2008-12-26 | Connection test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201580184U CN201335866Y (en) | 2008-12-26 | 2008-12-26 | Connection test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201335866Y true CN201335866Y (en) | 2009-10-28 |
Family
ID=41287522
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201580184U Expired - Lifetime CN201335866Y (en) | 2008-12-26 | 2008-12-26 | Connection test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201335866Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103680274A (en) * | 2013-12-26 | 2014-03-26 | 江苏大学 | Automatic detection method and device for connection wire of electrical experimental facility |
| CN104410161A (en) * | 2014-12-01 | 2015-03-11 | 国家电网公司 | Real-time monitoring cabinet for ground wire |
| CN105866606A (en) * | 2015-02-09 | 2016-08-17 | 日本电产理德股份有限公司 | Connection detector |
| CN108398601A (en) * | 2018-05-07 | 2018-08-14 | 上海海鹰机械厂 | Control stick grip comprehensive tester |
| CN113703388A (en) * | 2021-09-07 | 2021-11-26 | 广州电力机车有限公司 | Multifunctional locomotive test box |
-
2008
- 2008-12-26 CN CNU2008201580184U patent/CN201335866Y/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103680274A (en) * | 2013-12-26 | 2014-03-26 | 江苏大学 | Automatic detection method and device for connection wire of electrical experimental facility |
| CN103680274B (en) * | 2013-12-26 | 2016-01-20 | 江苏大学 | A kind of connection wire of electrical experimental facility automatic testing method and device |
| CN104410161A (en) * | 2014-12-01 | 2015-03-11 | 国家电网公司 | Real-time monitoring cabinet for ground wire |
| CN105866606A (en) * | 2015-02-09 | 2016-08-17 | 日本电产理德股份有限公司 | Connection detector |
| CN105866606B (en) * | 2015-02-09 | 2020-07-31 | 日本电产理德股份有限公司 | Connection inspection device |
| CN108398601A (en) * | 2018-05-07 | 2018-08-14 | 上海海鹰机械厂 | Control stick grip comprehensive tester |
| CN108398601B (en) * | 2018-05-07 | 2024-04-16 | 上海海鹰机械厂 | Comprehensive tester for steering column handle |
| CN113703388A (en) * | 2021-09-07 | 2021-11-26 | 广州电力机车有限公司 | Multifunctional locomotive test box |
| CN113703388B (en) * | 2021-09-07 | 2023-08-22 | 广州电力机车有限公司 | Multifunctional locomotive test box |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20091028 |