CN204794008U - Intelligence protection circuit - Google Patents
Intelligence protection circuit Download PDFInfo
- Publication number
- CN204794008U CN204794008U CN201520409071.7U CN201520409071U CN204794008U CN 204794008 U CN204794008 U CN 204794008U CN 201520409071 U CN201520409071 U CN 201520409071U CN 204794008 U CN204794008 U CN 204794008U
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- diode
- electric capacity
- chip
- connects
- relay
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- Expired - Fee Related
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Abstract
The utility model discloses an intelligence protection circuit, including resistance R1, transformer W, chip IC1 and diode D2, relay J's contact J -1 is connected to transformer W's winding N1's one end, and electric capacity C6, relay J and 220V alternating current, transformer W's winding N1's other end connected load L is connected to relay J's contact J -1's the other end. The utility model protects a circuit has increased excessive pressure and overload protection module on original line voltage supply circuit's basis, can the automatic disconnection circuit when electrical load volume of overtension or load of appearing in the electric wire netting is too big, and utilize the time -recorder chip as the intelligent control module simultaneously, the automatic recovery is supplied power after a period, therefore the circuit has, and the reaction rate is fast, longe -lived, simple structure's advantage.
Description
Technical field
The utility model relates to a kind of charging circuit, specifically a kind of intelligent protection circuit.
Background technology
Along with the raising of people's living standard; various household electrical appliance progress into the family of people; can be the energy saying that electric energy has become the most frequently used in people's life; but often there will be power network fluctuation in the process that electric energy transmits in electrical network; thus make stable 220V voltage originally there will be overvoltage, under-voltage situation; not only affect the normal productive life of people; but also the useful life of the serious reduction electric loading of meeting; much old electricity consumption facility also uses fuse as protection component; reaction speed is slow, replacing trouble, and dangerous property.
Utility model content
The purpose of this utility model is the intelligent protection circuit providing a kind of structure simple, easy to use, to solve the problem proposed in above-mentioned background technology.
For achieving the above object, the utility model provides following technical scheme:
A kind of intelligent protection circuit, comprise resistance R1, transformer W, chip IC 1 and diode D2, one end of the winding N1 of described transformer W connects the contact J-1 of relay J, the other end of the contact J-1 of relay J connects electric capacity C6, relay J and 220V alternating current, the other end of the winding N1 of transformer W connects load L, the other end of load L connects the other end of 220V alternating current, electric capacity C1, electric capacity C3, electric capacity C4, electric capacity C5, the anode of diode D1, the anode of diode D6, the emitter of triode V1, a stiff end of potentiometer RP1, the winding N2 of transformer W and the pin 1 of chip IC 1, the other end of the winding N2 of transformer W connects the negative electrode of diode D1 and another stiff end of potentiometer RP1, the sliding end of potentiometer RP1 connects the anode of the sliding end connection diode D2 of potentiometer RP1, the negative electrode of diode D2 connects the other end of electric capacity C1 and the negative electrode of diode D3, the base stage of the anode connecting triode V1 of diode D3, the collector electrode contact resistance R1 of triode V1, the pin 2 of electric capacity C2 and chip IC 1, the other end contact resistance R2 of resistance R1, the other end of electric capacity C5, the negative electrode of diode D5, the pin 4 of chip IC 1 and the pin 8 of chip IC 1, the pin 5 of chip IC 1 connects the other end of electric capacity C3, the other end of the pin 6 contact resistance R2 of chip IC 1, the other end of electric capacity C4 and the pin 7 of chip IC 1, the anode of diode D5 connects the other end of electric capacity C6 and the negative electrode of diode D6, the negative electrode of diode D4 connects the control pole of bidirectional thyristor Q1, the other end of electric capacity C2 connects a main electrode of electric capacity C7 and bidirectional thyristor Q1, another main electrode contact resistance R3 of bidirectional thyristor Q1 and the other end of relay J, the other end of the other end contact resistance R3 of electric capacity C7.
As preferred version of the present utility model: described chip IC 1 is NE555 type timer chip.
As preferred version of the present utility model: described diode D1, diode D3 are voltage stabilizing didoe.
As preferred version of the present utility model: described relay J is normally-closed contact relay.
Compared with prior art; the beneficial effects of the utility model are: the utility model protective circuit adds overvoltage and overload protection module on the basis of original line voltage power supply circuits; can automatic shutoff circuit when occurring in electrical network that the power load amount of overtension or load is excessive; utilize timer chip as intelligent control module simultaneously; automatic recovery of power supply after a period of time, therefore circuit has that reaction speed is fast, the life-span is long, the simple advantage of structure.
Accompanying drawing explanation
Fig. 1 is the circuit diagram of intelligent protection circuit.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Refer to Fig. 1, a kind of intelligent protection circuit, comprise resistance R1, transformer W, chip IC 1 and diode D2, one end of the winding N1 of described transformer W connects the contact J-1 of relay J, the other end of the contact J-1 of relay J connects electric capacity C6, relay J and 220V alternating current, the other end of the winding N1 of transformer W connects load L, the other end of load L connects the other end of 220V alternating current, electric capacity C1, electric capacity C3, electric capacity C4, electric capacity C5, the anode of diode D1, the anode of diode D6, the emitter of triode V1, a stiff end of potentiometer RP1, the winding N2 of transformer W and the pin 1 of chip IC 1, the other end of the winding N2 of transformer W connects the negative electrode of diode D1 and another stiff end of potentiometer RP1, the sliding end of potentiometer RP1 connects the anode of the sliding end connection diode D2 of potentiometer RP1, the negative electrode of diode D2 connects the other end of electric capacity C1 and the negative electrode of diode D3, the base stage of the anode connecting triode V1 of diode D3, the collector electrode contact resistance R1 of triode V1, the pin 2 of electric capacity C2 and chip IC 1, the other end contact resistance R2 of resistance R1, the other end of electric capacity C5, the negative electrode of diode D5, the pin 4 of chip IC 1 and the pin 8 of chip IC 1, the pin 5 of chip IC 1 connects the other end of electric capacity C3, the other end of the pin 6 contact resistance R2 of chip IC 1, the other end of electric capacity C4 and the pin 7 of chip IC 1, the anode of diode D5 connects the other end of electric capacity C6 and the negative electrode of diode D6, the negative electrode of diode D4 connects the control pole of bidirectional thyristor Q1, the other end of electric capacity C2 connects a main electrode of electric capacity C7 and bidirectional thyristor Q1, another main electrode contact resistance R3 of bidirectional thyristor Q1 and the other end of relay J, the other end of the other end contact resistance R3 of electric capacity C7.
Chip IC 1 is NE555 type timer chip.Diode D1, diode D3 are voltage stabilizing didoe.Relay J is normally-closed contact relay.
Operation principle of the present utility model is: circuit comprises current detection circuit, timing circuit and control circuit, testing circuit comprises transformer W and potentiometer RP1, timing circuit comprises chip IC 1, electric capacity C3 and diode D4, control circuit comprises relay J, bidirectional thyristor Q1 and resistance R3, during normal operation, the normally-closed contact of relay J is in closure state, when voltage or load electricity consumption exceed set point, after transformer W, voltage-stabiliser tube D3 is punctured, triode V1 saturation conduction, set is there is in chip IC 1 because 2 pin current potentials are low level, the high level that its 3 pin exports makes bidirectional thyristor Q1 conducting, relay J adhesive, its normally-closed contact J-1 disconnects, cut off the electricity supply.After a few minutes, chip IC 1 output low level, corresponding J release.Contact J-1 closes, and power supply is connected, then detects.Reach the object of overvoltage protection and overload protection.
Claims (4)
1. an intelligent protection circuit, comprises resistance R1, transformer W, chip IC 1 and diode D2, it is characterized in that, one end of the winding N1 of described transformer W connects the contact J-1 of relay J, the other end of the contact J-1 of relay J connects electric capacity C6, relay J and 220V alternating current, the other end of the winding N1 of transformer W connects load L, the other end of load L connects the other end of 220V alternating current, electric capacity C1, electric capacity C3, electric capacity C4, electric capacity C5, the anode of diode D1, the anode of diode D6, the emitter of triode V1, a stiff end of potentiometer RP1, the winding N2 of transformer W and the pin 1 of chip IC 1, the other end of the winding N2 of transformer W connects the negative electrode of diode D1 and another stiff end of potentiometer RP1, the sliding end of potentiometer RP1 connects the anode of the sliding end connection diode D2 of potentiometer RP1, the negative electrode of diode D2 connects the other end of electric capacity C1 and the negative electrode of diode D3, the base stage of the anode connecting triode V1 of diode D3, the collector electrode contact resistance R1 of triode V1, the pin 2 of electric capacity C2 and chip IC 1, the other end contact resistance R2 of resistance R1, the other end of electric capacity C5, the negative electrode of diode D5, the pin 4 of chip IC 1 and the pin 8 of chip IC 1, the pin 5 of chip IC 1 connects the other end of electric capacity C3, the other end of the pin 6 contact resistance R2 of chip IC 1, the other end of electric capacity C4 and the pin 7 of chip IC 1, the anode of diode D5 connects the other end of electric capacity C6 and the negative electrode of diode D6, the negative electrode of diode D4 connects the control pole of bidirectional thyristor Q1, the other end of electric capacity C2 connects a main electrode of electric capacity C7 and bidirectional thyristor Q1, another main electrode contact resistance R3 of bidirectional thyristor Q1 and the other end of relay J, the other end of the other end contact resistance R3 of electric capacity C7.
2. a kind of intelligent protection circuit according to claim 1, is characterized in that, described chip IC 1 is NE555 type timer chip.
3. a kind of intelligent protection circuit according to claim 1, is characterized in that, described diode D1, diode D3 are voltage stabilizing didoe.
4. a kind of intelligent protection circuit according to claim 1, is characterized in that, described relay J is normally-closed contact relay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520409071.7U CN204794008U (en) | 2015-06-15 | 2015-06-15 | Intelligence protection circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520409071.7U CN204794008U (en) | 2015-06-15 | 2015-06-15 | Intelligence protection circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204794008U true CN204794008U (en) | 2015-11-18 |
Family
ID=54533991
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520409071.7U Expired - Fee Related CN204794008U (en) | 2015-06-15 | 2015-06-15 | Intelligence protection circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204794008U (en) |
-
2015
- 2015-06-15 CN CN201520409071.7U patent/CN204794008U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20151118 Termination date: 20190615 |