CN209134045U - A kind of protection of three phase supply and indicating circuit - Google Patents
A kind of protection of three phase supply and indicating circuit Download PDFInfo
- Publication number
- CN209134045U CN209134045U CN201822227062.2U CN201822227062U CN209134045U CN 209134045 U CN209134045 U CN 209134045U CN 201822227062 U CN201822227062 U CN 201822227062U CN 209134045 U CN209134045 U CN 209134045U
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- phase
- light emitting
- emitting diode
- diode
- fuse
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Abstract
The utility model discloses a kind of protection of three phase supply and indicating circuits; including A phase, B phase and C phase; it is separately installed with fuse F1, fuse F2 and fuse F3 in the A phase, B phase and C phase, is parallel with diode D1, diode D2 and diode D3 with light emitting diode L1, light emitting diode L2 and light emitting diode L3 respectively on the route I, route II and route III.Three phase mains is inputted from left side port, the output of right side port, after any electric current all the way is more than fusting current, the blown fuse of corresponding circuit, left side port has normal voltage at this time, the voltage passes through resistance R1, R2(A phase), or R3, R4(B phase), or R5, R6(C phase), by light emitting diode L1(A phase) or L2(B phase) or L3(C phase) to right side port, make lumination of light emitting diode with other two-phase power supply forming circuit by the way that load is internal again, is used to indicate the blown fuse of the phase power supply.
Description
Technical field
The utility model relates to three phase supply technical field, specially a kind of three phase supply protection and indicating circuit.
Background technique
Three-phase electricity is mainly used for the power supply as motor, that is, the load for needing to rotate, because of three phases of three-phase electricity
Difference is 120 degree, and stuck phenomenon will not occur for rotor.The rotor of motor is three groups of coil compositions for being mutually 120 degree.Generator produces
Raw is alternating current, then three groups of coils will generate 120 degree of phase phase difference of alternating current.Three phase supply is exactly by this three groups
Electric current connects on different electrical appliances respectively as firewire, and they are connect on common zero curve.
Currently, being to be protected using air switch to circuit mostly, short circuit occur when using three phase supply
When, air switch can explode, danger is caused, meanwhile, also it is not easy to the inspection of circuit.For this purpose, it is proposed that a kind of three phase supply
Protection and indicating circuit.
Utility model content
The purpose of this utility model is to provide a kind of protection of three phase supply and indicating circuits, when any electric current all the way is super
After crossing fusting current, the blown fuse of corresponding circuit, left side port has normal voltage at this time, which passes through electricity
Hinder R1, R2(A phase) or R3, R4(B phase) or R5, R6(C phase), by light emitting diode L1(A phase) or L2(B phase) or L3(C
Phase) to right side port, then by the way that load is internal make lumination of light emitting diode with other two-phase power supply forming circuit, on solving
The problem of stating the inspection for proposing also to be not easy to circuit in background technique.
To achieve the above object, the utility model provides the following technical solutions: a kind of protection of three phase supply and indicating circuit,
Including A phase, B phase and C phase, fuse F1, fuse F2 and fuse F3 are separately installed in the A phase, B phase and C phase, it is described
It is parallel with route I, route II and route III with fuse F1, fuse F2 and fuse F3 in A phase, B phase and C phase, it is described
It is in series with resistance R1, resistance R2 and light emitting diode L1 on route I, is in series with resistance R3, resistance R4 and hair on the route II
Optical diode L2 is in series with resistance R5, resistance R6 and light emitting diode L3, the route I, route II and route on the route
Diode D1, diode D2 and two are parallel with light emitting diode L1, light emitting diode L2 and light emitting diode L3 respectively on III
Pole pipe D3.
Preferably, the installation direction of the diode D1 diode D2 and diode D3 is opposite with current direction.
Preferably, the light emitting diode L1, light emitting diode L3 and light emitting diode L2 are red light emitting diodes.
Preferably, circuit is mutually formed between the A phase, B phase and C phase.
Preferably, the A phase, B phase and C phase power supply are inputted from left side port.
Compared with prior art, the utility model has the beneficial effects that
When the utility model works normally, three phase mains is inputted from left side port, the output of right side port, when it is any all the way
Electric current is more than after fusting current, and the blown fuse of corresponding circuit, left side port has normal voltage, the voltage at this time
Pass through resistance R1, R2(A phase) or R3, R4(B phase) or R5, R6(C phase), by light emitting diode L1(A phase) or L2(B phase),
Or L3(C phase) to right side port, then by the way that load is internal make lumination of light emitting diode with other two-phase power supply forming circuit, it uses
In the light emitting diode that the blown fuse for indicating the phase power supply, diode D1, D2, D3 are used to protect it in parallel, prevent from shining
Diode bears excessively high backward voltage and damages.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the modular structure schematic diagram of the utility model.
In figure: 1 fuse F1,2 fuse F2,3 and fuse F3,4 routes I, 5 routes II, 6 routes III, 7 resistance R1,8
Resistance R2,9 light emitting diode L1,10 resistance R3,11 resistance R4,12 resistance R5,13 resistance R6,14 light emitting diode L3,15 2
Pole pipe D1,16 diode D2,17 diode D3,18 light emitting diode L2.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Fig. 1~2 are please referred to, the utility model provides a kind of technical solution: a kind of protection of three phase supply and indicating circuit, packet
A phase, B phase and C phase are included, fuse F1 1, fuse F2 2 and fuse F3 3 are separately installed in the A phase, B phase and C phase,
Route I 4, route II 5 are parallel with fuse F1 1, fuse F2 2 and fuse F3 3 in the A phase, B phase and C phase
With route III 6, resistance R1 7, resistance R2 8 and light emitting diode L1 9, the route II 5 are in series on the route I 4
On be in series with resistance R3 10, resistance R4 11 and light emitting diode L2 18, resistance R5 12 is in series on the route III 6, electricity
Hinder R6 13 and light emitting diode L3 14, on the route I 4, route II 5 and route III 6 respectively with light emitting diode L1 9, hair
Optical diode L2 18 and light emitting diode L3 14 is parallel with diode D1 15, diode D2 16 and diode D3 17.
Specifically, the installation direction of the diode D115 diode D216 and diode D317 with current direction phase
Instead.The light emitting diode that diode D1, D2, D3 are used to protect it in parallel, prevents light emitting diode from bearing excessively high backward voltage
And it damages.
Specifically, the light emitting diode L19, light emitting diode L314 and light emitting diode L218 are emitting red light two
Pole pipe.Red light emitting diodes color is more distinct.
Specifically, mutually forming circuit between the A phase, B phase and C phase.Pass through load inside and other two convenient for electric current
Phase power supply is formed into a loop and makes lumination of light emitting diode, is used to indicate the blown fuse of the phase power supply.
Specifically, the A phase, B phase and C phase power supply are inputted from left side port.Fuse convenient for indicating the phase power supply is molten
It is disconnected, lumination of light emitting diode.
Working principle: in use, A phase, B phase and C phase three phase mains are inputted from left side port, the output of right side port, when
Any electric current all the way is more than the insurance of corresponding circuit after fuse F1 1, fuse F2 2 and 3 blowout current of fuse F3
Silk fusing, left side port has normal voltage at this time, which passes through resistance R1, R2(A phase) or R3, R4(B phase) or R5, R6
(C phase), by light emitting diode L1(A phase) or L2(B phase) or L3(C phase) to right side port, then by load it is internal with it is another
Outer two-phase power supply is formed into a loop and light emitting diode L1 9, light emitting diode L2 18 and light emitting diode L3 14 is made to shine, and uses
In the blown fuse for indicating the phase power supply, diode D1, D2, D3 are used to protect the light emitting diode L1 9 of its parallel connection, shine
Diode L2 18 and light emitting diode L3 14 prevents light emitting diode L1 9, light emitting diode L2 18 and light emitting diode L3
14 bear excessively high backward voltages and damage.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.
Claims (5)
1. a kind of three phase supply protection and indicating circuit, including A phase, B phase and C phase, it is characterised in that: the A phase, B phase and C phase
On be separately installed with fuse F1(1), fuse F2(2) and fuse F3(3), in the A phase, B phase and C phase and fuse
F1(1), fuse F2(2) and fuse F3(3) it is parallel with route I (4), route II (5) and route III (6), the route I
(4) resistance R1(7 is in series on), resistance R2(8) and light emitting diode L1(9), resistance R3 is in series on the route II (5)
(10), resistance R4(11) and light emitting diode L2(18), resistance R5(12 is in series on the route III (6)), resistance R6(13)
With light emitting diode L3(14), on the route I (4), route II (5) and route III (6) respectively with light emitting diode L1(9),
Light emitting diode L2(18) and light emitting diode L3(14) be parallel with diode D1(15), diode D2(16) and diode D3
(17).
2. a kind of three phase supply protection according to claim 1 and indicating circuit, it is characterised in that: the diode D1
(15) diode D2(16) and diode D3(17) installation direction it is opposite with current direction.
3. a kind of three phase supply protection according to claim 1 and indicating circuit, it is characterised in that: the light emitting diode
L1(9), light emitting diode L3(14) and light emitting diode L2(18) it is red light emitting diodes.
4. a kind of three phase supply protection according to claim 1 and indicating circuit, it is characterised in that: the A phase, B phase and C
Circuit is mutually formed between phase.
5. a kind of three phase supply protection according to claim 1 and indicating circuit, it is characterised in that: the A phase, B phase and C
Phase power supply is inputted from left side port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822227062.2U CN209134045U (en) | 2018-12-28 | 2018-12-28 | A kind of protection of three phase supply and indicating circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822227062.2U CN209134045U (en) | 2018-12-28 | 2018-12-28 | A kind of protection of three phase supply and indicating circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209134045U true CN209134045U (en) | 2019-07-19 |
Family
ID=67249582
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822227062.2U Expired - Fee Related CN209134045U (en) | 2018-12-28 | 2018-12-28 | A kind of protection of three phase supply and indicating circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209134045U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111077476A (en) * | 2020-01-02 | 2020-04-28 | 湖南金泰环保科技有限公司 | Method for detecting short circuit or electric leakage fault point of equipment |
-
2018
- 2018-12-28 CN CN201822227062.2U patent/CN209134045U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111077476A (en) * | 2020-01-02 | 2020-04-28 | 湖南金泰环保科技有限公司 | Method for detecting short circuit or electric leakage fault point of equipment |
| CN111077476B (en) * | 2020-01-02 | 2022-03-08 | 湖南金泰环保科技有限公司 | Method for detecting short circuit or electric leakage fault point of equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190719 Termination date: 20201228 |