CN203396877U - Magnetic flux release online detection device - Google Patents
Magnetic flux release online detection device Download PDFInfo
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- CN203396877U CN203396877U CN201320384214.4U CN201320384214U CN203396877U CN 203396877 U CN203396877 U CN 203396877U CN 201320384214 U CN201320384214 U CN 201320384214U CN 203396877 U CN203396877 U CN 203396877U
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Abstract
The utility model discloses a magnetic flux release online detection device. The magnetic flux release online detection device includes a test signal transmission loop and a magnetic flux detection loop; the test signal transmission loop comprises a front-end circuit, a gate circuit chip with a plurality of gate circuits and a back-end circuit; the front-end circuit is connected with the input end of the gate circuit chip; the output end of the gate circuit chip is connected with the back-end circuit; the back-end circuit is also connected with the magnetic flux detection loop; magnetic flux is connected in series in the magnetic flux detection loop; a signal output point is led out from the magnetic flux detection loop; a main control chip provides an input signal to the gate circuit chip and detects an output signal from the signal output point and returns the output signal to the main control chip; and the main control chip judges whether the magnetic flux is fractured or not based on the output signal. With the magnetic flux release online detection device of the utility model adopted, tedious work for removing a frame circuit breaker body can be avoided, and misoperation caused by instant interference can be prevented. The magnetic flux release online detection device has the advantages of high reliability, strong universality and low cost.
Description
Technical field
The utility model relates to low voltage electrical apparatus technology field, more particularly, relates to a kind of magnetic flux electrical apparatus release on-line measuring device.
Background technology
Magnetic flux electrical apparatus release is a basic element of character of device for switching.Magnetic flux electrical apparatus release need to use wire to be connected with the controller of gauge tap action, the in the situation that of use for a long time in industrial occasions, be difficult to guarantee that this connects always excellent, once there is broken string or loose contact, magnetic flux electrical apparatus release can not be effectively in running order, the normal dropout of isolating switch or fault overcurrent are threaded off, will bring huge potential safety hazard.
According to common thinking, detect magnetic flux electrical apparatus release and whether occur that disconnection fault need to carry out offline inspection by device powers down, but such detection can affect the normal operation of equipment.So, just need a kind of normal operation that can not affect equipment, can detect the device whether magnetic flux electrical apparatus release breaks by real-time online.Warning message is provided immediately when disconnection fault appears in magnetic flux electrical apparatus release, is convenient to fix a breakdown in time, guarantee the reliability of magnetic flux electrical apparatus release long-term work.
Utility model content
The utility model is intended to propose a kind ofly can carry out the online device detecting to magnetic flux electrical apparatus release.
According to an embodiment of the present utility model, a kind of magnetic flux electrical apparatus release on-line measuring device is proposed, comprise test signal transmission loop and flux detection loop.Test signal is transmitted gate circuit chip, the back-end circuit that loop comprises front-end circuit, has several gate circuits, front-end circuit is connected to the input end of gate circuit chip, the output terminal of gate circuit chip is connected to back-end circuit, and back-end circuit is also connected to flux detection loop.Magnetic flux rope is connected in flux detection loop, picks out signal output point in flux detection loop.One main control chip provides an input signal to gate circuit chip, from signal output point, detects an output signal and returns to main control chip, and main control chip judges according to output signal whether magnetic flux breaks.
In one embodiment, front-end circuit comprises: electric capacity, the first diode, the first resistance.Be connected to+3V of the first end power supply of anodal and first resistance of the minus earth of electric capacity, the first diode.After being connected to each other, the second end of the negative pole of the positive pole of electric capacity, the first diode and the first resistance is connected to gate circuit chip.
In one embodiment, gate circuit chip comprises four gate circuits, wherein the first gate circuit, the second gate circuit and the 4th gate circuit are parallel with one another connects with the 3rd gate circuit afterwards, the ground pin ground connection of all four gate circuits, connect+5V of the power pin of all four gate circuits power supply.Two input pins of two input pins of the first gate circuit, the second gate circuit and two input pins of the 4th gate circuit are connected to each other, and are connected to the output pin of the 3rd gate circuit.After being connected to each other, the output pin of the output pin of the output pin of the first gate circuit, the second gate circuit and the 4th gate circuit is connected to back-end circuit.The first input pin of the 3rd gate circuit receives the input signal from main control chip, and the second input pin of the 3rd gate circuit is connected to the output of front-end circuit.
In one embodiment, back-end circuit comprises the second resistance and triode.The first end of the second resistance is connected to the output of gate circuit chip, and the second end of the second resistance is connected to the first pin of triode, the three-prong ground connection of triode, the second pin access flux detection loop of triode.
In one embodiment, flux detection loop comprises the 3rd resistance, the first divider resistance, the second divider resistance, the second diode.The negative pole of the second diode and the positive pole of magnetic flux are connected to power supply.The first end of the positive pole of the second diode and the 3rd resistance is connected to the negative pole of magnetic flux.The second end of the 3rd resistance and the first end of the first divider resistance are connected to the second pin of triode.The second end of the first divider resistance and the first end of the second divider resistance are connected to signal output point, the second end ground connection of the second divider resistance.
In one embodiment, the first divider resistance is 6:1～8:1 with the ratio of the resistance value of the second divider resistance.
Whether magnetic flux electrical apparatus release on-line measuring device of the present utility model can, under the state of not impact equipment normal operation, detect magnetic flux electrical apparatus release and connect normal in real time, accurately, easily.Do not need to stop power supply and the method by loaded down with trivial details dismounting frame circuit breaker body and controller thereof checks magnetic flux break-make, can real-time online to the detecting of magnetic flux electrical apparatus release work, guarantee the reliability of magnetic flux electrical apparatus release long-term work.Magnetic flux electrical apparatus release on-line measuring device magnetic flux electrical apparatus release on-line measuring device of the present utility model can be removed the loaded down with trivial details work of dismounting frame circuit breaker body from, also can remove the interference maloperation work that moment causes, and have that reliability is high, highly versatile, the feature that cost is low.
Accompanying drawing explanation
It is more obvious that the above and other feature of the utility model, character and advantage become the description by below in conjunction with drawings and Examples, and identical Reference numeral represents identical feature all the time in the accompanying drawings, wherein:
Fig. 1 has disclosed according to the circuit structure diagram of the magnetic flux electrical apparatus release on-line measuring device of an embodiment of the present utility model.
Embodiment
The utility model proposes a kind of magnetic flux electrical apparatus release on-line measuring device.Shown in figure 1, Fig. 1 has disclosed according to the circuit structure diagram of the magnetic flux electrical apparatus release on-line measuring device of an embodiment of the present utility model.This magnetic flux electrical apparatus release on-line measuring device comprises test signal transmission loop and flux detection loop.
Test signal is transmitted gate circuit chip, the back-end circuit that loop comprises front-end circuit, has several gate circuits, front-end circuit is connected to the input end of gate circuit chip, the output terminal of gate circuit chip is connected to back-end circuit, and back-end circuit is also connected to flux detection loop.Magnetic flux rope is connected in flux detection loop, picks out signal output point in flux detection loop.One main control chip provides an input signal to gate circuit chip, from signal output point, detects an output signal and returns to main control chip, and main control chip judges according to output signal whether magnetic flux breaks.
Shown in figure 1, front-end circuit comprises: capacitor C 15, the first diode D7, the first resistance R 5.Be connected to+3V of the first end power supply of anodal and the first resistance R 5 of the minus earth SGND of capacitor C 15, the first diode D7.After the second end of the negative pole of the positive pole of capacitor C 15, the first diode D7 and the first resistance R 5 is connected to each other, being connected to gate circuit chip, particularly, is the second input pin 9 that is connected to the 3rd gate circuit U4C in gate circuit chip.
Gate circuit chip comprises four gate circuits, wherein the first gate circuit U4A, the second gate circuit U4B and the 4th gate circuit U4D are parallel with one another connects with the 3rd gate circuit U4C afterwards, the ground pin 7 ground connection SGND of all four gate circuits, connect+5V of power pin 14 power supply of all four gate circuits.Two input pins 12,13 of two input pins 1,2 of the first gate circuit U4A, two input pins 5,6 of the second gate circuit U4B and the 4th gate circuit U4D are connected to each other, and are connected to the output pin 10 of the 3rd gate circuit U4C.After the output pin 3 of the first gate circuit U4A, the output pin 4 of the second gate circuit U4B and the output pin 11 of the 4th gate circuit U4D are connected to each other, being connected to back-end circuit, particularly, is the first end that is connected to the second resistance R 217.The input signal INPUT that the first input pin 8 of the 3rd gate circuit U4C receives from main control chip, the second input pin 9 of the 3rd gate circuit U4C is connected to the output of front-end circuit.
Back-end circuit comprises the second resistance R 217 and triode Q3.The first end of the second resistance R 217 is connected to the output of gate circuit chip, and the second end of the second resistance R 217 is connected to the first pin 31 of triode Q3, the three-prong 33 ground connection GND of triode Q3, the second pin 32 access flux detection loops of triode Q3.
Flux detection loop comprises: the 3rd resistance R 227, the first divider resistance R11, the second divider resistance R12, the second diode D8.The positive pole of the negative pole of the second diode D8 and magnetic flux TQ is connected to power supply VCC.The first end of the positive pole of the second diode D8 and the 3rd resistance R 227 is connected to the negative pole of magnetic flux TQ.The second end of the 3rd resistance R 227 and the first end of the first divider resistance R11 are connected to the second pin 32 of triode Q3.The second end of the first divider resistance R11 and the first end of the second divider resistance R12 are connected to signal output point, the second end ground connection GND of the second divider resistance R12.By signal output point output signal output OUTPUT, output signal OUTPUT is provided for main control chip, and main control chip judges based on output signal OUTPUT whether magnetic flux occurs the fault of broken string.
The principle of work of this magnetic flux electrical apparatus release on-line measuring device is as follows: front stage drive circuit input signal is processed stroke input signal INPUT gate circuit chip increase driving force by main control chip and through the second resistance R 217 in back-end circuit, delivered to the base stage (pin one) of triode Q3 again, turn-on transistor Q3, grounded emitter GND due to triode Q3, the collector of Q3 is also dragged down ground connection GND, now there is voltage VCC at magnetic flux two ends, make the action of magnetic flux electrical apparatus release.When magnetic flux electrical apparatus release and main control chip respective terminal connects and while there is broken string, because the resistance of magnetic flux is generally several ohm to hundreds of ohm, thus electric current through magnetic flux, the 3rd resistance R 227, the first divider resistance R11, the second divider resistance R12 to GND formation loop.The first divider resistance R11 is 6:1～8:1 with the ratio of the resistance value of the second divider resistance R12.Such as in one embodiment, the resistance value of the first divider resistance R11 is 6.8K Ω, and the resistance value of the second divider resistance R12 is 1K Ω.Voltage by the known output signal OUTPUT of Ohm law is roughly 1/8th of VCC.Output signal OUTPUT is sent to the port of main control chip, represents that magnetic flux is working properly when there is output signal OUTPUT.When if magnetic flux has disconnected, electric current does not form loop, thus main control chip to read in real time signal be zero level, represent magnetic flux broken string.
Whether magnetic flux electrical apparatus release on-line measuring device of the present utility model can, under the state of not impact equipment normal operation, detect magnetic flux electrical apparatus release and connect normal in real time, accurately, easily.Do not need to stop power supply and the method by loaded down with trivial details dismounting frame circuit breaker body and controller thereof checks magnetic flux break-make, can real-time online to the detecting of magnetic flux electrical apparatus release work, guarantee the reliability of magnetic flux electrical apparatus release long-term work.Magnetic flux electrical apparatus release on-line measuring device magnetic flux electrical apparatus release on-line measuring device of the present utility model can be removed the loaded down with trivial details work of dismounting frame circuit breaker body from, also can remove the interference maloperation work that moment causes, and have that reliability is high, highly versatile, the feature that cost is low.
Above-described embodiment is to provide to being familiar with person in the art and realizes or use of the present utility model; those skilled in the art can be in the situation that not departing from utility model thought of the present utility model; above-described embodiment is made to various modifications or variation; thereby protection domain of the present utility model do not limit by above-described embodiment, and it should be the maximum magnitude that meets the inventive features that claims mention.
Claims (7)
1. a magnetic flux electrical apparatus release on-line measuring device, is characterized in that, comprising: test signal is transmitted loop and flux detection loop,
Described test signal is transmitted gate circuit chip, the back-end circuit that loop comprises front-end circuit, has several gate circuits, front-end circuit is connected to the input end of gate circuit chip, the output terminal of gate circuit chip is connected to back-end circuit, and back-end circuit is also connected to flux detection loop;
Magnetic flux rope is connected in flux detection loop, picks out signal output point in flux detection loop;
One main control chip provides an input signal to described gate circuit chip, from described signal output point, detects an output signal and returns to main control chip, and main control chip judges according to described output signal whether magnetic flux breaks.
2. magnetic flux electrical apparatus release on-line measuring device as claimed in claim 1, is characterized in that, described front-end circuit comprises: electric capacity (C15), the first diode (D7), the first resistance (R5);
Be connected to+3V of the first end power supply of the positive pole of the minus earth of electric capacity (C15), the first diode (D7) and the first resistance (R5);
After being connected to each other, the second end of the negative pole of the positive pole of electric capacity (C15), the first diode (D7) and the first resistance (R5) is connected to gate circuit chip.
3. magnetic flux electrical apparatus release on-line measuring device as claimed in claim 2, it is characterized in that, described gate circuit chip comprises four gate circuits, wherein the first gate circuit (U4A), the second gate circuit (U4B) and the 4th gate circuit (U4D) are parallel with one another connects with the 3rd gate circuit (U4C) afterwards, the ground pin of all four gate circuits (7) ground connection, connect+5V of the power pin of all four gate circuits (14) power supply.
4. magnetic flux electrical apparatus release on-line measuring device as claimed in claim 3, is characterized in that,
Two input pins (12,13) of two input pins (1,2) of the first gate circuit (U4A), two input pins (5,6) of the second gate circuit (U4B) and the 4th gate circuit (U4D) are connected to each other, and are connected to the output pin (10) of the 3rd gate circuit (U4C);
After being connected to each other, the output pin (11) of the output pin (3) of the first gate circuit (U4A), the output pin (4) of the second gate circuit (U4B) and the 4th gate circuit (U4D) is connected to back-end circuit;
First input pin (8) of the 3rd gate circuit (U4C) receives the input signal (INPUT) from main control chip, and second input pin (9) of the 3rd gate circuit (U4C) is connected to the output of front-end circuit.
5. magnetic flux electrical apparatus release on-line measuring device as claimed in claim 4, is characterized in that, described back-end circuit comprises: the second resistance (R217) and triode (Q3);
The first end of the second resistance (R217) is connected to the output of gate circuit chip, the second end of the second resistance (R217) is connected to first pin (31) of triode (Q3), three-prong (33) ground connection of triode (Q3), the second pin (32) access flux detection loop of triode (Q3).
6. magnetic flux electrical apparatus release on-line measuring device as claimed in claim 5, is characterized in that, described flux detection loop comprises: the 3rd resistance (R227), the first divider resistance (R11), the second divider resistance (R12), the second diode (D8);
The positive pole of the negative pole of the second diode (D8) and magnetic flux (TQ) is connected to power supply (VCC);
The first end of the positive pole of the second diode (D8) and the 3rd resistance (R227) is connected to the negative pole of magnetic flux (TQ);
The first end of the second end of the 3rd resistance (R227) and the first divider resistance (R11) is connected to second pin (32) of triode (Q3);
The first end of the second end of the first divider resistance (R11) and the second divider resistance (R12) is connected to signal output point, the second end ground connection of the second divider resistance (R12).
7. magnetic flux electrical apparatus release on-line measuring device as claimed in claim 6, is characterized in that, described the first divider resistance (R11) is 6:1～8:1 with the ratio of the resistance value of the second divider resistance (R12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320384214.4U CN203396877U (en) | 2013-06-28 | 2013-06-28 | Magnetic flux release online detection device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320384214.4U CN203396877U (en) | 2013-06-28 | 2013-06-28 | Magnetic flux release online detection device |
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| CN203396877U true CN203396877U (en) | 2014-01-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320384214.4U Expired - Lifetime CN203396877U (en) | 2013-06-28 | 2013-06-28 | Magnetic flux release online detection device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109933041A (en) * | 2017-12-19 | 2019-06-25 | 上海亿盟电气自动化技术有限公司 | A kind of online self-diagnostic circuit of low pressure controller |
-
2013
- 2013-06-28 CN CN201320384214.4U patent/CN203396877U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109933041A (en) * | 2017-12-19 | 2019-06-25 | 上海亿盟电气自动化技术有限公司 | A kind of online self-diagnostic circuit of low pressure controller |
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Granted publication date: 20140115 |