CN205544228U - Retrieval type safety protection power supply circuit - Google Patents
Retrieval type safety protection power supply circuit Download PDFInfo
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- CN205544228U CN205544228U CN201620164480.XU CN201620164480U CN205544228U CN 205544228 U CN205544228 U CN 205544228U CN 201620164480 U CN201620164480 U CN 201620164480U CN 205544228 U CN205544228 U CN 205544228U
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- triode
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Abstract
The utility model discloses a retrieval type safety protection power supply circuit, including resistance R1, unidirectional thyristor Q1, relay K and triode V5, resistance R1's one end connecting resistance R3, triode V2's projecting pole, triode V3's collecting electrode, triode V4's collecting electrode, triode V5's collecting electrode, lamps and lanterns H and power E's positive pole, diode D1's positive pole and triode V1's collecting electrode are connected to resistance R1's the other end, and potentiometre RP1's a stiff end is connected to triode V1's projecting pole. The utility model discloses retrieval type safety protection power supply circuit simple structure, components and parts are few, not only can provide the DC voltage for the load to still having overload protection and short -circuit protection's function, utilizing the relay to form the electromagnetism protection circuit simultaneously, increase the reaction sensitivity of circuit, effective protection circuit is not damaged, has consequently that the function is various, the protection is effectual and convenient to use's advantage.
Description
Technical field
This utility model relates to a kind of power circuit, specifically one can recovery-type safeguard protection power circuit.
Background technology
Along with improving constantly of people's living standard, electronic equipment has become as a requisite part in life, the most various household electrical appliance bring great convenience to the life of people, work, and this kind of electronic installation is desirable that a constant voltage dc source that precision is higher, electric current is bigger.The constant voltage dc source of existing market is of a great variety, its mid and low-end products are the most, although low-end product has the advantage of price relative to high-end product, but quality is the most as one wishes, all there is the defect such as function singleness, life-span short, debugging maintenance difficult in common regulated power supply, although and high-end product reliable in quality, safety and stability, but price is high also allows people hang back.Therefore need to be improved.
Utility model content
The purpose of this utility model be provide one can recovery-type safeguard protection power circuit, with solve in above-mentioned background technology propose problem.
For achieving the above object, the following technical scheme of this utility model offer:
nullOne can recovery-type safeguard protection power circuit，Including resistance R1、Unidirectional thyristor Q1、Relay K and audion V5，One end of described resistance R1 connects resistance R3、The emitter stage of audion V2、The colelctor electrode of audion V3、The colelctor electrode of audion V4、The colelctor electrode of audion V5、Light fixture H and the positive pole of power supply E，The other end of resistance R1 connects anode and the colelctor electrode of audion V1 of diode D1，The emitter stage of audion V1 connects a fixing end of potentiometer RP1，Another fixing end of potentiometer RP1 connects the sliding end of potentiometer RP1、Resistance R7 and the negative pole of power supply E，The other end of resistance R7 connects resistance R4、Resistance R5、Resistance R6、Electric capacity C1、Switch S1、The negative electrode of diode D2、The anode of unidirectional thyristor Q1、Electric capacity C1、Load A、The anode of unidirectional thyristor Q1、The base stage of audion V1 and not moved end 2 of the contact K-1 of relay K，The negative electrode of diode D1 connects the control pole of unidirectional thyristor Q1，The negative electrode of unidirectional thyristor Q1 connects resistance R2、Another fixing end of potentiometer RP2、The other end of switch S1、The anode of diode D2 and the other end of light fixture H，The base stage of the sliding end connecting triode V3 of potentiometer RP2，The other end of resistance R2 connects the other end and the base stage of audion V2 of resistance R3，The collector connection relay K of audion V2，The other end of relay K connects the other end of resistance R4，The emitter stage of audion V3 connects the other end and the base stage of audion V4 of resistance R5，The emitter stage of audion V4 connects not moved end 1 of the contact K-1 of relay K，The moved end of the contact K-1 of relay K connects the other end and the base stage of audion V5 of resistance R6，The emitter stage of audion V5 connects the other end and the other end of load A of electric capacity C1.
As preferred version of the present utility model: described relay K is normally opened contact relay.
Compared with prior art; the beneficial effects of the utility model are: this utility model can recovery-type safeguard protection circuit construction of electric power be simple, components and parts are few; there is provided DC voltage can not only to load; and also there is the function of overload protection and short-circuit protection; utilize relay to form electromagnetic protection circuit simultaneously; increasing the reaction sensitivity of circuit, effective protection circuit do not damaged, and therefore has diverse in function, an advantage that protected effect is good and easy to use.
Accompanying drawing explanation
Fig. 1 is can the circuit diagram of recovery-type safeguard protection power circuit.
Detailed description of the invention
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is clearly and completely described, it is clear that described embodiment is only a part of embodiment of this utility model rather than whole embodiments.Based on the embodiment in this utility model, the every other embodiment that those of ordinary skill in the art are obtained under not making creative work premise, broadly fall into the scope of this utility model protection.
nullRefer to Fig. 1，One can recovery-type safeguard protection power circuit，Including resistance R1、Unidirectional thyristor Q1、Relay K and audion V5，One end of described resistance R1 connects resistance R3、The emitter stage of audion V2、The colelctor electrode of audion V3、The colelctor electrode of audion V4、The colelctor electrode of audion V5、Light fixture H and the positive pole of power supply E，The other end of resistance R1 connects anode and the colelctor electrode of audion V1 of diode D1，The emitter stage of audion V1 connects a fixing end of potentiometer RP1，Another fixing end of potentiometer RP1 connects the sliding end of potentiometer RP1、Resistance R7 and the negative pole of power supply E，The other end of resistance R7 connects resistance R4、Resistance R5、Resistance R6、Electric capacity C1、Switch S1、The negative electrode of diode D2、The anode of unidirectional thyristor Q1、Electric capacity C1、Load A、The anode of unidirectional thyristor Q1、The base stage of audion V1 and not moved end 2 of the contact K-1 of relay K，The negative electrode of diode D1 connects the control pole of unidirectional thyristor Q1，The negative electrode of unidirectional thyristor Q1 connects resistance R2、Another fixing end of potentiometer RP2、The other end of switch S1、The anode of diode D2 and the other end of light fixture H，The base stage of the sliding end connecting triode V3 of potentiometer RP2，The other end of resistance R2 connects the other end and the base stage of audion V2 of resistance R3，The collector connection relay K of audion V2，The other end of relay K connects the other end of resistance R4，The emitter stage of audion V3 connects the other end and the base stage of audion V4 of resistance R5，The emitter stage of audion V4 connects not moved end 1 of the contact K-1 of relay K，The moved end of the contact K-1 of relay K connects the other end and the base stage of audion V5 of resistance R6，The emitter stage of audion V5 connects the other end and the other end of load A of electric capacity C1.
Relay K is normally opened contact relay.
Operation principle of the present utility model is: reference voltage power supply flows through the electric current of Zener diode D2 to be stablized by light fixture H, thus improves degree of stability, and overload instruction is the most also used as by light fixture.By adjusting potentiometer RP2, the output voltage of manostat can conveniently regulate, and load maximum current and can be determined by regulator potentiometer RP1.Circuit have employed Electronic Protection and two kinds of measures of electromagnetic protection, and electronic protection circuit is made up of audion V1 and unidirectional thyristor Q1 etc..When overload or short circuit, the pressure drop on detection resistance R0 increases, and audion V1 and IGCT Q1 is toggled and turns on.The reference voltage power supply due to its short circuit, therefore audion V3, V4 cut-off, audion V5 base stage no-bias and end, reach the purpose of overcurrent protection.
After overload or short trouble eliminate, to power up to original state, only SR S1 need to be pressed.Because after button press, the short circuit of IGCT Q1 anode one negative electrode, and control pole no-bias, therefore IGCT Q1 cut-off.
The electronic lock being made up of audion V1 is introduced in manostat; its objective is to reduce the output impedance of manostat; use the additional electromagnetic protection circuit being made up of audion V2 and relay K; when manostat has worked long hours in the case of maximum current value, if there is no electromagnetic protection, when load is slightly transshipped; although Electronic Protection action; but audion V5 is not completely switched off, big electric current continues through it, it is likely that burnt.Having had electromagnetic protection, when load slightly overload or short circuit, it just can action rapidly.I.e. when IGCT Q1 turns on, audion V2 base stage is added to the positive ends of Zener diode through resistance R2, and V2 turns on, relay K adhesive, and its normally opened contact K-1 connects not moved end 2, and the base stage of audion V5 is connected on positive ends, and V5 ends, and cuts off load A loop.
Claims (2)
- null1. one kind can recovery-type safeguard protection power circuit，Including resistance R1、Unidirectional thyristor Q1、Relay K and audion V5，It is characterized in that，One end of described resistance R1 connects resistance R3、The emitter stage of audion V2、The colelctor electrode of audion V3、The colelctor electrode of audion V4、The colelctor electrode of audion V5、Light fixture H and the positive pole of power supply E，The other end of resistance R1 connects anode and the colelctor electrode of audion V1 of diode D1，The emitter stage of audion V1 connects a fixing end of potentiometer RP1，Another fixing end of potentiometer RP1 connects the sliding end of potentiometer RP1、Resistance R7 and the negative pole of power supply E，The other end of resistance R7 connects resistance R4、Resistance R5、Resistance R6、Electric capacity C1、Switch S1、The negative electrode of diode D2、The anode of unidirectional thyristor Q1、Electric capacity C1、Load A、The anode of unidirectional thyristor Q1、The base stage of audion V1 and not moved end 2 of the contact K-1 of relay K，The negative electrode of diode D1 connects the control pole of unidirectional thyristor Q1，The negative electrode of unidirectional thyristor Q1 connects resistance R2、Another fixing end of potentiometer RP2、The other end of switch S1、The anode of diode D2 and the other end of light fixture H，The base stage of the sliding end connecting triode V3 of potentiometer RP2，The other end of resistance R2 connects the other end and the base stage of audion V2 of resistance R3，The collector connection relay K of audion V2，The other end of relay K connects the other end of resistance R4，The emitter stage of audion V3 connects the other end and the base stage of audion V4 of resistance R5，The emitter stage of audion V4 connects not moved end 1 of the contact K-1 of relay K，The moved end of the contact K-1 of relay K connects the other end and the base stage of audion V5 of resistance R6，The emitter stage of audion V5 connects the other end and the other end of load A of electric capacity C1.
- One the most according to claim 1 can recovery-type safeguard protection power circuit, it is characterised in that described relay K is normally opened contact relay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620164480.XU CN205544228U (en) | 2016-03-04 | 2016-03-04 | Retrieval type safety protection power supply circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620164480.XU CN205544228U (en) | 2016-03-04 | 2016-03-04 | Retrieval type safety protection power supply circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205544228U true CN205544228U (en) | 2016-08-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620164480.XU Expired - Fee Related CN205544228U (en) | 2016-03-04 | 2016-03-04 | Retrieval type safety protection power supply circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205544228U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108075543A (en) * | 2017-12-22 | 2018-05-25 | 东莞市辉豪电器制品有限公司 | A kind of protection circuit of emergency power supply |
| CN109324556A (en) * | 2018-11-08 | 2019-02-12 | 广东通鉴物流有限公司 | Logistic transportation supervision system |
-
2016
- 2016-03-04 CN CN201620164480.XU patent/CN205544228U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108075543A (en) * | 2017-12-22 | 2018-05-25 | 东莞市辉豪电器制品有限公司 | A kind of protection circuit of emergency power supply |
| CN109324556A (en) * | 2018-11-08 | 2019-02-12 | 广东通鉴物流有限公司 | Logistic transportation supervision system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Retrieval type safety protection power supply circuit Effective date of registration: 20181123 Granted publication date: 20160831 Pledgee: Hebei construction investment microfinance Limited by Share Ltd Pledgor: Hebei Shihua Technology Co., Ltd. Registration number: 2018130000015 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20190430 Granted publication date: 20160831 Pledgee: Hebei construction investment microfinance Limited by Share Ltd Pledgor: Hebei Shihua Technology Co., Ltd. Registration number: 2018130000015 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160831 Termination date: 20210304 |
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| CF01 | Termination of patent right due to non-payment of annual fee |