CN207148229U - A kind of three-phase and four-line phase shortage warning device - Google Patents
A kind of three-phase and four-line phase shortage warning device Download PDFInfo
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- CN207148229U CN207148229U CN201720746447.2U CN201720746447U CN207148229U CN 207148229 U CN207148229 U CN 207148229U CN 201720746447 U CN201720746447 U CN 201720746447U CN 207148229 U CN207148229 U CN 207148229U
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- photoelectrical coupler
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Abstract
The utility model discloses a kind of three-phase and four-line phase shortage warning device, including turning circuit one, turning circuit two, decompression voltage regulator and detection circuit, turning circuit one includes three-phase electrical input U, resistance R1, diode D1, electric capacity C1, photoelectrical coupler U1 and zero line N, turning circuit two includes three-phase electrical input V, resistance R2, diode D2, electric capacity C2, photoelectrical coupler U2 and zero line N, decompression voltage regulator includes three-phase electrical input W, resistance R3, electric capacity C4, bridge rectifier MB6S, electric capacity C3 and diode D5, detection circuit includes resistance R4, resistance R5, diode D3, diode D6, relay K1 and triode Q1.The utility model is simple in construction, stably, easy to use, ideally realizes phase shortage alarm, and production cost is low.
Description
Technical field
Warning device technical field is the utility model is related to, it particularly relates to a kind of three-phase and four-line phase shortage warning device.
Background technology
At present, all powered in equipment used in some production enterprises by three phase network, but when three phase network occurs to lack
Staff can not learn in time when phase, power failure, and prevent staff from being taken measures in time to the equipment operated by it, from
And cause a series of inconvenience.Existing phase shortage alarming product circuit is complicated on the market, and element is numerous, and cost is higher.
The problem of in correlation technique, effective solution is not yet proposed at present.
Utility model content
It is the problem of in correlation technique, existing to overcome the utility model proposes a kind of three-phase and four-line phase shortage warning device
There is the above-mentioned technical problem present in correlation technique.
What the technical solution of the utility model was realized in：
According to one side of the present utility model, there is provided a kind of three-phase and four-line phase shortage warning device, including turning circuit
First, turning circuit two, decompression voltage regulator and detection circuit.
The turning circuit one include three-phase electrical input U, resistance R1, diode D1, electric capacity C1, photoelectrical coupler U1 and
Zero line N, the three-phase electrical input U are connected with described resistance R1 one end, the resistance R1 other ends and diode D1 sun
Pole is connected, and anode of the diode D1 negative electrodes respectively with described electric capacity C1 one end and the photoelectrical coupler U1 is connected, described
The electric capacity C1 other ends and the photoelectrical coupler U1 negative electrode are connected with the zero line N respectively.
The turning circuit two include three-phase electrical input V, resistance R2, diode D2, electric capacity C2, photoelectrical coupler U2 and
Zero line N, the three-phase electrical input V are connected with described resistance R2 one end, the resistance R2 other ends and diode D2 sun
Pole is connected, and anode of the diode D2 negative electrodes respectively with described electric capacity C2 one end and the photoelectrical coupler U2 is connected, described
The electric capacity C2 other ends and the photoelectrical coupler U2 negative electrode are connected with the zero line N respectively.
The decompression voltage regulator includes three-phase electrical input W, resistance R3, electric capacity C4, bridge rectifier MB6S, electric capacity C3
It is connected with diode D5, the three-phase electrical input W with described electric capacity C4 one end, the electric capacity C4 other ends and the bridge-type are whole
Stream device MB6S pin points 1 connect, the bridge rectifier MB6S pin points 2 respectively with described electric capacity C3 one end and the diode D5
Negative electrode is connected, and the electric capacity C3 other ends and the diode D5 anodes are connected with the bridge rectifier MB6S pin points 4 respectively,
The bridge rectifier MB6S pin points 3 are connected with the zero line N.
The detection circuit includes resistance R4, resistance R5, diode D3, diode D6, relay K1 and triode Q1,
The resistance R4 is connected with the photoelectrical coupler U1 colelctor electrodes, the photoelectrical coupler U1 emitter stages and the photoelectric coupling
Device U2 colelctor electrodes are connected, and the photoelectrical coupler U2 emitter stages are connected with the triode Q1 base stages, the triode Q1 current collections
Pole is connected with the diode D6 negative electrodes, the diode D3 anodes and described relay K1 one end respectively, the diode D6
Anode is connected with described resistance R5 one end, and the resistance R5 other ends, the diode D3 negative electrodes and the relay K1 are another
End is connected with the bridge rectifier MB6S pin points 2 respectively, the triode Q1 emitter stages and the bridge rectifier MB6S pin
The connection of point 4, the relay K1 adhesive faces are provided with normally opened auxiliary contact NO1, normally opened auxiliary contact NO2, normally closed auxiliary contact
NC1 and normally closed auxiliary contact NC2.
Further, the diode D5 is voltage-regulator diode, and the diode D6 is light emitting diode.
Further, the photoelectrical coupler U1 and photoelectrical coupler U2 is respectively Q817 photoelectrical couplers.
Further, the triode Q1 is MMBT3904 triodes.
Further, the bridge rectifier MB6S includes four diode D4, per the two neighboring bridge rectifier
The diode D4 is provided between MB6S pin points, the bridge rectifier MB6S pin points 4 connect the diode D4 anodes,
The bridge rectifier MB6S pin points 2 connect the diode D4 negative electrodes.
The beneficial effects of the utility model are：It is connected on respectively on two live wires by R1, D1 and R2, D2 and carries out step-down rectifier
Obtain a DC voltage needed for for U1, U2 conducting；It is whole through MB6S bridge-types and R3, C4 and N form a resistance-capacitance depressurization loop
Stream, C3, D5 voltage stabilizing, a DC voltage no more than 12V used for relay and triode is formed, only in two photoelectricity
In the case that coupler secondary all turns on, the control triode of relay just has control voltage, so as to which control relay K1 inhales
Close, any line open circuit, triode Q1 will be caused not turn on, so as to relay K1 not adhesives, output end detects stem grafting
The conversion change of point, reaching the purpose of alarm will cause the alarm point to be opened, and exporting NC/NO respectively from two groups of electric shocks of relay opens
Signal is measured in pass, and the utility model is simple in construction, stably, easy to use, ideally realizes phase shortage alarm, and production cost
It is low.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
In the required accompanying drawing used be briefly described, it should be apparent that, drawings in the following description are only of the present utility model
Some embodiments, for those of ordinary skill in the art, on the premise of not paying creative work, can also be according to this
A little accompanying drawings obtain other accompanying drawings.
Fig. 1 is the circuit diagram according to the three-phase and four-line phase shortage warning device of the utility model embodiment.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole
Embodiment.Based on the embodiment in the utility model, every other embodiment that those of ordinary skill in the art are obtained all belongs to
In the scope of the utility model protection.
According to embodiment of the present utility model, there is provided a kind of three-phase and four-line phase shortage warning device.
As illustrated, according to the three-phase and four-line phase shortage warning device of the utility model embodiment, including turning circuit one, lead
Circuit passband two, decompression voltage regulator and detection circuit.
The turning circuit one include three-phase electrical input U, resistance R1, diode D1, electric capacity C1, photoelectrical coupler U1 and
Zero line N, the three-phase electrical input U are connected with described resistance R1 one end, the resistance R1 other ends and diode D1 sun
Pole is connected, and anode of the diode D1 negative electrodes respectively with described electric capacity C1 one end and the photoelectrical coupler U1 is connected, described
The electric capacity C1 other ends and the photoelectrical coupler U1 negative electrode are connected with the zero line N respectively.
The turning circuit two include three-phase electrical input V, resistance R2, diode D2, electric capacity C2, photoelectrical coupler U2 and
Zero line N, the three-phase electrical input V are connected with described resistance R2 one end, the resistance R2 other ends and diode D2 sun
Pole is connected, and anode of the diode D2 negative electrodes respectively with described electric capacity C2 one end and the photoelectrical coupler U2 is connected, described
The electric capacity C2 other ends and the photoelectrical coupler U2 negative electrode are connected with the zero line N respectively.
The decompression voltage regulator includes three-phase electrical input W, resistance R3, electric capacity C4, bridge rectifier MB6S, electric capacity
C3 and diode D5, the three-phase electrical input W are connected with described electric capacity C4 one end, the electric capacity C4 other ends and the bridge-type
Rectifier MB6S pin points 1 connect, the bridge rectifier MB6S pin points 2 respectively with described electric capacity C3 one end and the diode
D5 negative electrodes connect, and the electric capacity C3 other ends and the diode D5 anodes connect with the bridge rectifier MB6S pin points 4 respectively
Connect, the bridge rectifier MB6S pin points 3 are connected with the zero line N.
The detection circuit includes resistance R4, resistance R5, diode D3, diode D6, relay K1 and triode Q1,
The resistance R4 is connected with the photoelectrical coupler U1 colelctor electrodes, the photoelectrical coupler U1 emitter stages and the photoelectric coupling
Device U2 colelctor electrodes are connected, and the photoelectrical coupler U2 emitter stages are connected with the triode Q1 base stages, the triode Q1 current collections
Pole is connected with the diode D6 negative electrodes, the diode D3 anodes and described relay K1 one end respectively, the diode D6
Anode is connected with described resistance R5 one end, and the resistance R5 other ends, the diode D3 negative electrodes and the relay K1 are another
End is connected with the bridge rectifier MB6S pin points 2 respectively, the triode Q1 emitter stages and the bridge rectifier MB6S pin
The connection of point 4, the relay K1 adhesive faces are provided with normally opened auxiliary contact NO1, normally opened auxiliary contact NO2, normally closed auxiliary contact
NC1 and normally closed auxiliary contact NC2.
In one embodiment, for the diode D5 and the diode D6, it can use the diode
D5 is voltage-regulator diode, and the diode D6 is light emitting diode.
In one embodiment, for the photoelectrical coupler, the photoelectrical coupler U1 and the photoelectric coupling
Device U2 is respectively Q817 photoelectrical couplers.
In one embodiment, for the triode Q1, it can use the triode Q1 as MMBT3904 tri-
Pole pipe.
In one embodiment, for the bridge rectifier MB6S, it can use the bridge rectifier MB6S
Including four diode D4, the diode D4 is provided between every two neighboring bridge rectifier MB6S pin points, it is described
Bridge rectifier MB6S pin points 4 connect the diode D4 anodes, and the bridge rectifier MB6S pin points 2 connect the diode
D4 negative electrodes.
In summary, by means of above-mentioned technical proposal of the present utility model, two are connected on respectively by R1, D1 and R2, D2
Step-down rectifier is carried out on live wire and obtains a DC voltage needed for for U1, U2 conducting；And R3, C4 and N form a capacitance-resistance drop
Road is pushed back, through MB6S bridge rectifiers, C3, D5 voltage stabilizing, forms a direct current no more than 12V used for relay and triode
Voltage, only in the case where two photoelectrical coupler secondary all turn on, the control triode of relay just has control voltage,
So as to control relay K1 adhesives, any line open circuit, triode Q1 will be caused not turn on, so as to which relay K1 does not inhale
Close, output end detects the conversion change of dry contact, and reaching the purpose of alarm will cause the alarm point to be opened, from two groups of relay
Get an electric shock and export NC/NO on-off models respectively, the utility model is simple in construction, stably, easy to use, ideally realizes phase shortage
Alarm, and production cost is low.
Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit the utility model
Within the spirit and principle of utility model, any modification, equivalent substitution and improvements made etc., the utility model should be included in
Protection domain within.
Claims (5)
1. a kind of three-phase and four-line phase shortage warning device, it is characterised in that including turning circuit one, turning circuit two, lowering and stabilizing blood pressure
Circuit and detection circuit；
The turning circuit one includes three-phase electrical input U, resistance R1, diode D1, electric capacity C1, photoelectrical coupler U1 and zero line
N, the three-phase electrical input U are connected with described resistance R1 one end, and the resistance R1 other ends connect with the diode D1 anodes
Connect, anode of the diode D1 negative electrodes respectively with described electric capacity C1 one end and the photoelectrical coupler U1 is connected, the electric capacity
The C1 other ends and the photoelectrical coupler U1 negative electrode are connected with the zero line N respectively；
The turning circuit two includes three-phase electrical input V, resistance R2, diode D2, electric capacity C2, photoelectrical coupler U2 and zero line
N, the three-phase electrical input V are connected with described resistance R2 one end, and the resistance R2 other ends connect with the diode D2 anodes
Connect, anode of the diode D2 negative electrodes respectively with described electric capacity C2 one end and the photoelectrical coupler U2 is connected, the electric capacity
The C2 other ends and the photoelectrical coupler U2 negative electrode are connected with the zero line N respectively；
The decompression voltage regulator includes three-phase electrical input W, resistance R3, electric capacity C4, bridge rectifier MB6S, electric capacity C3 and two
Pole pipe D5, the three-phase electrical input W are connected with described electric capacity C4 one end, the electric capacity C4 other ends and the bridge rectifier
MB6S pin points 1 connect, and the bridge rectifier MB6S pin points 2 connect with described electric capacity C3 one end and the diode D5 negative electrodes respectively
Connect, the electric capacity C3 other ends and the diode D5 anodes are connected with the bridge rectifier MB6S pin points 4 respectively, the bridge
Formula rectifier MB6S pin points 3 are connected with the zero line N；
The detection circuit includes resistance R4, resistance R5, diode D3, diode D6, relay K1 and triode Q1, the electricity
Resistance R4 is connected with the photoelectrical coupler U1 colelctor electrodes, the photoelectrical coupler U1 emitter stages and the photoelectrical coupler U2 current collections
Pole connects, and the photoelectrical coupler U2 emitter stages are connected with the triode Q1 base stages, the triode Q1 colelctor electrodes respectively with
The diode D6 negative electrodes, the diode D3 anodes connect with described relay K1 one end, the diode D6 anodes and institute
State resistance R5 one end connection, the resistance R5 other ends, the diode D3 negative electrodes and the relay K1 other ends respectively with
The bridge rectifier MB6S pin points 2 are connected, and the triode Q1 emitter stages are connected with the bridge rectifier MB6S pin points 4,
The relay K1 adhesive faces are provided with normally opened auxiliary contact NO1, normally opened auxiliary contact NO2, normally closed auxiliary contact NC1 and normally closed
Auxiliary contact NC2.
2. three-phase and four-line phase shortage warning device according to claim 1, it is characterised in that the diode D5 is voltage stabilizing two
Pole pipe, the diode D6 are light emitting diode.
3. three-phase and four-line phase shortage warning device according to claim 1, it is characterised in that the photoelectrical coupler U1 and institute
It is respectively Q817 photoelectrical couplers to state photoelectrical coupler U2.
4. three-phase and four-line phase shortage warning device according to claim 1, it is characterised in that the triode Q1 is
MMBT3904 triodes.
5. three-phase and four-line phase shortage warning device according to claim 1, it is characterised in that the bridge rectifier MB6S bags
Four diode D4 are included, the diode D4, the bridge are provided between every two neighboring bridge rectifier MB6S pin points
Formula rectifier MB6S pin points 4 connect the diode D4 anodes, and the bridge rectifier MB6S pin points 2 connect the diode D4
Negative electrode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720746447.2U CN207148229U (en) | 2017-06-23 | 2017-06-23 | A kind of three-phase and four-line phase shortage warning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720746447.2U CN207148229U (en) | 2017-06-23 | 2017-06-23 | A kind of three-phase and four-line phase shortage warning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207148229U true CN207148229U (en) | 2018-03-27 |
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ID=61671483
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720746447.2U Active CN207148229U (en) | 2017-06-23 | 2017-06-23 | A kind of three-phase and four-line phase shortage warning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207148229U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111521886B (en) * | 2020-04-28 | 2021-07-16 | 美的集团股份有限公司 | Phase-loss detection circuit and air conditioner |
-
2017
- 2017-06-23 CN CN201720746447.2U patent/CN207148229U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111521886B (en) * | 2020-04-28 | 2021-07-16 | 美的集团股份有限公司 | Phase-loss detection circuit and air conditioner |
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