CN206313426U - A kind of short-circuit protector with warning function - Google Patents
A kind of short-circuit protector with warning function Download PDFInfo
- Publication number
- CN206313426U CN206313426U CN201620928131.0U CN201620928131U CN206313426U CN 206313426 U CN206313426 U CN 206313426U CN 201620928131 U CN201620928131 U CN 201620928131U CN 206313426 U CN206313426 U CN 206313426U
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- triode
- short
- resistance
- circuit
- diode
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Abstract
The utility model discloses a kind of short-circuit protector with warning function, including switch module, short circuit protection module and short-circuit alarming module；The switch module includes triode V2 and switch S1, and short circuit protection module includes triode V1, diode D2, triode V3 and resistance R2, and short-circuit alarming module includes triode V4, resistance R3, electric capacity C2 and resistance R4.Short-circuit protector of the utility model with warning function constitutes one group of light-sensitive element using light emitting diode and phototriode; short-circuit conditions to loading are monitored; automatic protection when running into short-circuit conditions; alarm can be sent simultaneously; and the energy-storage travelling wave tube such as short-circuit alarming module and unused battery, larger has saved cost of manufacture.
Description
Technical field
The utility model is related to a kind of short-circuit protection circuit, specifically a kind of short-circuit protector with warning function.
Background technology
With the continuous improvement of people's living standard, electronic equipment has become a part essential in living, especially
It is that the life that gives people of various household electrical appliance, work bring great convenience, and this kind of electronic installation has to the supply of electric energy
There is requirement higher.The protection of especially to short circuit situations such as, once load is short-circuited, then may burn electrical equipment,
Cause larger economic loss.
Utility model content
The purpose of this utility model is to provide a kind of simple structure, the short-circuit protection with warning function easy to use
Device, to solve the problems, such as to be proposed in above-mentioned background technology.
To achieve the above object, the utility model provides following technical scheme：
A kind of short-circuit protector with warning function, including switch module, short circuit protection module and short-circuit alarming module；
The switch module include triode V2 and switch S1, short circuit protection module include triode V1, diode D2, triode V3 and
Resistance R2, short-circuit alarming module includes triode V4, resistance R3, electric capacity C2 and resistance R4；
One end of the switch S1 connects resistance R1, the colelctor electrode of triode V2, the anode of power supply VCC and diode D1,
The base stage and the colelctor electrode of triode V3 of the negative electrode connecting triode V1 of diode D1, the emitter stage connection resistance of triode V3
R6, the negative electrode of diode D2, the colelctor electrode of triode V1, the emitter stage connection resistance R1 of electric capacity C1 and load F, triode V1
The other end, the other end of the base stage connection resistance R6 of triode V2 switchs other end connection resistance R2, the hair of triode V2 of S1
The other end of emitter-base bandgap grading, resistance R3, the anode of diode D3, the other end of electric capacity C1 and load F, the other end connection three of resistance R3
The base stage of pole pipe V4, the negative electrode connection resistance R4 and electric capacity C2 of diode D3, the hair of the other end connecting triode V4 of resistance R4
Emitter-base bandgap grading, the colelctor electrode connection loudspeaker B of triode V4.
As preferred scheme of the present utility model：The diode D2 is light emitting diode.
As preferred scheme of the present utility model：The triode V3 is phototriode.
As preferred scheme of the present utility model：The switch S1 is key switch.
Compared with prior art, the beneficial effects of the utility model are：Short circuit guarantor of the utility model with warning function
Shield device constitutes one group of light-sensitive element using light emitting diode and phototriode, and the short-circuit conditions to loading are monitored, and run into
Automatic protection during short-circuit conditions, while alarm can be sent, and the energy-storage travelling wave tube such as short-circuit alarming module and unused battery, compared with
Big has saved cost of manufacture.
Brief description of the drawings
Fig. 1 is the circuit diagram of the short-circuit protector with warning function.
Specific embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment for being obtained, belongs to the scope of the utility model protection.
Refer to Fig. 1, a kind of short-circuit protector with warning function, including switch module, short circuit protection module and short
Road alarm module；The switch module includes triode V2 and switch S1, and short circuit protection module includes triode V1, diode
D2, triode V3 and resistance R2, short-circuit alarming module include triode V4, resistance R3, electric capacity C2 and resistance R4；
One end of the switch S1 connects resistance R1, the colelctor electrode of triode V2, the anode of power supply VCC and diode D1,
The base stage and the colelctor electrode of triode V3 of the negative electrode connecting triode V1 of diode D1, the emitter stage connection resistance of triode V3
R6, the negative electrode of diode D2, the colelctor electrode of triode V1, the emitter stage connection resistance R1 of electric capacity C1 and load F, triode V1
The other end, the other end of the base stage connection resistance R6 of triode V2 switchs other end connection resistance R2, the hair of triode V2 of S1
The other end of emitter-base bandgap grading, resistance R3, the anode of diode D3, the other end of electric capacity C1 and load F, the other end connection three of resistance R3
The base stage of pole pipe V4, the negative electrode connection resistance R4 and electric capacity C2 of diode D3, the hair of the other end connecting triode V4 of resistance R4
Emitter-base bandgap grading, the colelctor electrode connection loudspeaker B of triode V4.
Diode D2 is light emitting diode.Triode V3 is phototriode.Switch S1 is key switch.
Operation principle of the present utility model is：When using, switch S1, power supply VCC are first pushed button by switch S1, resistance
R2 is added on Light-Emitting Diode D2 so that diode D2 light it is luminous, phototriode V3 therefore and it is electric so that V1
Base voltage is reduced and turned on, and the base stage of triode V2 obtains electric, and V2 is also switched on, and circuit enters self-locking state, trip switch S1, electricity
Road also can normal work, now electric capacity C2 is charged by diode D1, and triode V4 ends because base voltage is high,
Loudspeaker B does not work, and when F appearance short circuits are loaded, then the voltage of diode D2 is shorted, and D2 extinguishes, triode V3 cut-offs, three poles
The base voltage of pipe V1 is raised and ended, and V2 is also switched off, and reaches the purpose of short-circuit protection, because the base voltage of triode V4 disappears
Lose, electric capacity C2 is discharged by triode V4, then V4 conductings, loudspeaker B sends alarm, used as short-circuit alarming sound.
Claims (4)
1. a kind of short-circuit protector with warning function, including switch module, short circuit protection module and short-circuit alarming module；Its
Be characterised by, the switch module include triode V2 and switch S1, short circuit protection module include triode V1, diode D2,
Triode V3 and resistance R2, short-circuit alarming module includes triode V4, resistance R3, electric capacity C2 and resistance R4；
One end of the switch S1 connects resistance R1, the colelctor electrode of triode V2, the anode of power supply VCC and diode D1, two poles
The base stage and the colelctor electrode of triode V3 of the negative electrode connecting triode V1 of pipe D1, emitter stage connection resistance R6, two of triode V3
The negative electrode of pole pipe D2, the colelctor electrode of triode V1, the emitter stage connection resistance R1 of electric capacity C1 and load F, triode V1 it is another
End, the other end of the base stage connection resistance R6 of triode V2 switchs other end connection resistance R2, the transmitting of triode V2 of S1
The other end of pole, resistance R3, the anode of diode D3, the other end of electric capacity C1 and load F, the other end of resistance R3 connects three poles
The base stage of pipe V4, the negative electrode connection resistance R4 and electric capacity C2 of diode D3, the transmitting of the other end connecting triode V4 of resistance R4
Pole, the colelctor electrode connection loudspeaker B of triode V4.
2. a kind of short-circuit protector with warning function according to claim 1, it is characterised in that the diode D2
It is light emitting diode.
3. a kind of short-circuit protector with warning function according to claim 1, it is characterised in that the triode V3
It is phototriode.
4. a kind of short-circuit protector with warning function according to claim 1, it is characterised in that the switch S1 is
Key switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620928131.0U CN206313426U (en) | 2016-08-23 | 2016-08-23 | A kind of short-circuit protector with warning function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620928131.0U CN206313426U (en) | 2016-08-23 | 2016-08-23 | A kind of short-circuit protector with warning function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206313426U true CN206313426U (en) | 2017-07-07 |
Family
ID=59242864
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620928131.0U Expired - Fee Related CN206313426U (en) | 2016-08-23 | 2016-08-23 | A kind of short-circuit protector with warning function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206313426U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107861600A (en) * | 2017-11-21 | 2018-03-30 | 郑州天舜电子技术有限公司 | A kind of computer display power-supply controller of electric |
-
2016
- 2016-08-23 CN CN201620928131.0U patent/CN206313426U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107861600A (en) * | 2017-11-21 | 2018-03-30 | 郑州天舜电子技术有限公司 | A kind of computer display power-supply controller of electric |
| CN107861600B (en) * | 2017-11-21 | 2020-11-20 | 郑州天舜电子技术有限公司 | Computer display power supply controller |
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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: 20170707 Termination date: 20180823 |