CN106849003A - A kind of AC network safety electricity consumption protector - Google Patents
A kind of AC network safety electricity consumption protector Download PDFInfo
- Publication number
- CN106849003A CN106849003A CN201710126580.2A CN201710126580A CN106849003A CN 106849003 A CN106849003 A CN 106849003A CN 201710126580 A CN201710126580 A CN 201710126580A CN 106849003 A CN106849003 A CN 106849003A
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- Prior art keywords
- voltage
- chip
- diode
- potentiometer
- connection
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/20—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess voltage
- H02H3/207—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess voltage also responsive to under-voltage
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/24—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to undervoltage or no-voltage
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- Emergency Protection Circuit Devices (AREA)
Abstract
The invention discloses a kind of AC network safety electricity consumption protector; including power module, over-pressed detection module, under-voltage detection module and intelligent protection module; the power module connects over-pressed detection module, under-voltage detection module and intelligent protection module respectively, and the output end of the output end of over-pressed detection module and under-voltage detection module is all connected with intelligent protection module.AC network safety electricity consumption protector of the present invention is detected for the voltage pulsation in power network; under-voltage and over-pressed detection is separately constituted using voltage comparator; and realized to the power supply control with electric loading by timer and relay; the function of multiple protective is realized, therefore there is long service life, vdiverse in function and low cost.
Description
Technical field
The present invention relates to a kind of protector, specifically a kind of AC network safety electricity consumption protector.
Background technology
With the popularization of present electrical equipment, revolutionary change is brought to industrial and agricultural production, Defence business, science and technology,
The development of society is accelerated, people have stepped into Electrification Age, have also been greatly improved the quality of life of people,
Increasingly it be unable to do without these electric equipments.With the development of science and technology, the precision of electric equipment is also gradually stepped up, there occurs to overturn the heavens and cover
The change on ground, but the not interfered by outside of these electric equipments how is protected, into the master of current development in science and technology concern
Want problem.The power network of current China is popularized, and huge network system gives us many convenience.But with access power network
User increase, and consumer electronics variation, also result in the unstable of line voltage, voltage fluctuated, also into
Damage the principal element of electric equipment.How electrical equipment is protected when voltage change is larger, into people's research now
One direction.
The content of the invention
It is an object of the invention to provide a kind of AC network safety electricity consumption protector, to solve to be carried in above-mentioned background technology
The problem for going out.
To achieve the above object, the present invention provides following technical scheme：
A kind of AC network safety electricity consumption protector, including power module, over-pressed detection module, under-voltage detection module and intelligence
Energy protection module, the power module connects over-pressed detection module, under-voltage detection module and intelligent protection module, overvoltage inspection respectively
The output end of the output end and under-voltage detection module of surveying module is all connected with intelligent protection module.
The power module includes rectifier bridge T, transformer W, electric capacity C1 and chip IC 1, the armature winding N1's of transformer W
One end connects the contact K-1 and 220VAC of relay K, the other end connection socket P and 220VAC of the armature winding N1 of transformer W
The other end, the other end of the other end connection socket P of the contact K-1 of relay K, the secondary windings N2 connections of transformer W are whole
The voltage input end of stream bridge T, voltage output end connection electric capacity C1, the electric capacity C2 and the voltage input end 1 of chip IC 1 of rectifier bridge T,
The model LM7809 of chip IC 1.
As preferred scheme of the invention：The over-pressed detection module includes voltage comparator ic 2, potentiometer RP2 and two
The voltage output end 2 of one fixing end connection rectifier bridge T of pole pipe D2, potentiometer RP2, the sliding end connection electricity of potentiometer RP2
The positive input of pressure comparator IC2, the earth terminal 4 of another fixing end connection rectifier bridge T of potentiometer RP2, voltage ratio compared with
The reverse input end connection resistance R1 of device IC2, the anode of the output end connection diode D2 of voltage comparator ic 2.
As preferred scheme of the invention：The under-voltage detection module includes voltage comparator ic 3, potentiometer RP1 and two
The voltage output end 2 and a fixing end of potentiometer RP2 of one fixing end connection rectifier bridge T of pole pipe D3, potentiometer RP1,
The sliding end of potentiometer RP2 connects the reverse input end of voltage comparator ic 3, and another fixing end connection of potentiometer RP1 is whole
The earth terminal 4 of stream bridge T, the positive input connection resistance R1 and resistance R2 of voltage comparator ic 3, voltage comparator ic 2 it is defeated
Go out the anode that end connects diode D3, the negative electrode and the negative electrode of diode D1 of the negative electrode connection diode D2 of diode D3.
As preferred scheme of the invention：The intelligent protection module includes diode D4, triode V1, the and of chip IC 4
The anode of the base stage connection diode D1 of relay K, triode V1, the colelctor electrode connection resistance R3 of triode V1, resistance R3's
The other end connects voltage output end 3, electric capacity C4, the anode of diode D4, the pin 4 of chip IC 4 and the chip IC 4 of chip IC 1
Pin 8, the other end of the emitter stage connection electric capacity C4 of triode V1, resistance R4, the pin 2 of chip IC 4 and drawing for chip IC 4
Pin 6, the other end of negative electrode connection the resistance R5, resistance R5 of diode D4 connects negative electrode, relay K and the chip of diode D5
The pin 3 of IC4, the earth terminal 4 of the anode, the other end of resistance R4 and rectifier bridge T of the connection diode of pin 1 D5 of chip IC 4,
The model NE555 of chip IC 4.
Compared with prior art, the beneficial effects of the invention are as follows：AC network safety electricity consumption protector of the present invention is for electricity
Voltage pulsation in net detected, under-voltage and over-pressed detection is separately constituted using voltage comparator, and by timer and after
Electrical equipment is realized to the power supply control with electric loading, realizes the function of multiple protective, therefore many with long service life, function
The advantage of sample and low cost.
Brief description of the drawings
Fig. 1 is the circuit diagram of AC network safety electricity consumption protector.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
Refer to Fig. 1, a kind of AC network safety electricity consumption protector, including power module, over-pressed detection module, under-voltage inspection
Module and intelligent protection module are surveyed, the power module connects over-pressed detection module, under-voltage detection module and intelligent protection respectively
The output end of module, the output end of over-pressed detection module and under-voltage detection module is all connected with intelligent protection module.
By two output voltages, a part is the stable DC electricity exported by three terminal regulator IC1, this portion to power module
Component voltage is used to provide stable power-supplying to over-pressed detection module, under-voltage detection module and intelligent protection module, moreover it is possible to examined to overvoltage
Survey module, under-voltage detection module and reference voltage is provided, another part is the electricity to be detected for directly being exported from the port 2 of rectifier bridge T
Pressure, this portion voltage is directly by being added in over-pressed detection module, under-voltage detection mould after the partial pressure of potentiometer RP1 and potentiometer RP2
In block, for being compared with reference voltage, the line voltage of normal range (NR) is answered by after transformer W step-downs and rectifier bridge T rectifications
When so that voltage comparator ic 2 and voltage comparator ic 3 are failure to actuate, (voltage comparator ic 2 and voltage comparator ic 3 are preferred
LM358 chips, may also be the voltage comparator chip of other models), as the forward voltage of IC2 is less than backward voltage and IC3
Backward voltage be more than forward voltage, now IC2 and IC3 do not act, triode V1 is not triggered, the low electricity of 6 pin of IC4
Flat, now 3 pin of IC4 export high level, and relay K is powered, and its contact K-1 adhesives, socket P obtains electric, loads normal work, when
There is exception in voltage in power network, during higher than over-pressed critical value or less than under-voltage critical value, it is clear that the voltage from rectifier bridge T is defeated
The voltage of the output of exit port 2 can change in proportion therewith, and then be raised by the voltage after potentiometer RP1 and RP2 partial pressure
Or reduce so that backward voltage of the forward voltage of IC2 more than backward voltage or IC3 is less than forward voltage, now IC2 or IC3
Output end upset, turn on by trigger triode V1 after diode D1, now the 6 pin voltages rising of chip IC 4, and then IC4
3 pin voltages be changed into low level (herein action based on 555 timing chips basic functional principle, belong to prior art, no longer go to live in the household of one's in-laws on getting married
State), relay K dead electricity, its contact K-1 disconnects, and socket P dead electricity reaches under-voltage or overvoltage protection purpose.
Operation principle of the invention is：AC network safety electricity consumption protector of the present invention enters for the voltage pulsation in power network
Row detection, separately constitutes under-voltage and over-pressed detection, and realize to electricity consumption by timer and relay using voltage comparator
The power supply control of load, realizes the function of multiple protective, therefore with long service life, vdiverse in function and low cost excellent
Point.
Claims (5)
1. a kind of AC network safety electricity consumption protector, including power module, over-pressed detection module, under-voltage detection module and intelligence
Protection module, it is characterised in that the power module connects over-pressed detection module, under-voltage detection module and intelligent protection mould respectively
The output end of block, the output end of over-pressed detection module and under-voltage detection module is all connected with intelligent protection module.
2. a kind of AC network safety electricity consumption protector according to claim 1, it is characterised in that the power module bag
Rectifier bridge T, transformer W, electric capacity C1 and chip IC 1 are included, one end of the armature winding N1 of transformer W connects the contact of relay K
The other end of the other end connection socket P and 220VAC of the armature winding N1 of K-1 and 220VAC, transformer W, relay K's touches
The other end of the other end connection socket P of point K-1, the voltage input end of the secondary windings N2 connection rectifier bridges T of transformer W is whole
Voltage output end connection electric capacity C1, the electric capacity C2 and the voltage input end 1 of chip IC 1 of stream bridge T, the model of chip IC 1
LM7809。
3. a kind of AC network safety electricity consumption protector according to claim 1, it is characterised in that the overvoltage detection mould
Block includes voltage comparator ic 2, potentiometer RP2 and diode D2, the electricity of the fixing end connection rectifier bridge T of potentiometer RP2
Pressure output end 2, the sliding end of potentiometer RP2 connects the positive input of voltage comparator ic 2, and another of potentiometer RP2 is consolidated
Fixed end connects the earth terminal 4 of rectifier bridge T, and the reverse input end of voltage comparator ic 2 connects resistance R1, voltage comparator ic 2
The anode of output end connection diode D2.
4. a kind of AC network safety electricity consumption protector according to claim 1, it is characterised in that the under-voltage detection mould
Block includes voltage comparator ic 3, potentiometer RP1 and diode D3, the electricity of the fixing end connection rectifier bridge T of potentiometer RP1
One fixing end of pressure output end 2 and potentiometer RP2, the sliding end of potentiometer RP2 connects the reverse input of voltage comparator ic 3
End, the earth terminal 4 of another fixing end connection rectifier bridge T of potentiometer RP1, the positive input connection of voltage comparator ic 3
Resistance R1 and resistance R2, the anode of the output end connection diode D3 of voltage comparator ic 2, the negative electrode of diode D3 connects two poles
The negative electrode of pipe D2 and the negative electrode of diode D1.
5. a kind of AC network safety electricity consumption protector according to claim 1, it is characterised in that the intelligent protection mould
Block includes diode D4, triode V1, chip IC 4 and relay K, the anode of the base stage connection diode D1 of triode V1, three
The other end of colelctor electrode connection the resistance R3, resistance R3 of pole pipe V1 connects voltage output end 3, electric capacity C4, the diode of chip IC 1
The pin 8 of the anode of D4, the pin 4 of chip IC 4 and chip IC 4, the other end, the electricity of the emitter stage connection electric capacity C4 of triode V1
The pin 6 of resistance R4, the pin 2 of chip IC 4 and chip IC 4, the other end of negative electrode connection the resistance R5, resistance R5 of diode D4 connects
Connect the pin 3 of the negative electrode, relay K and chip IC 4 of diode D5, anode, the electricity of the connection diode of pin 1 D5 of chip IC 4
Hinder the other end of R4 and the earth terminal 4 of rectifier bridge T, the model NE555 of chip IC 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710126580.2A CN106849003A (en) | 2017-03-06 | 2017-03-06 | A kind of AC network safety electricity consumption protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710126580.2A CN106849003A (en) | 2017-03-06 | 2017-03-06 | A kind of AC network safety electricity consumption protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106849003A true CN106849003A (en) | 2017-06-13 |
Family
ID=59137886
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710126580.2A Pending CN106849003A (en) | 2017-03-06 | 2017-03-06 | A kind of AC network safety electricity consumption protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106849003A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108962676A (en) * | 2018-07-20 | 2018-12-07 | 东北大学 | A kind of anti-decompression device of direct current displaced type based on T-type bridge structure |
| CN109088392A (en) * | 2018-09-06 | 2018-12-25 | 深圳和而泰智能控制股份有限公司 | A kind of protection circuit and electronic equipment |
| CN112117740A (en) * | 2020-08-21 | 2020-12-22 | 广州亚美智造科技有限公司 | Under-voltage protection trigger circuit, under-voltage protection device and power supply system |
| CN112653321A (en) * | 2020-12-24 | 2021-04-13 | 上海汽车工业(集团)总公司 | Cross overvoltage comparison circuit and EPS power module |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2044337U (en) * | 1989-02-13 | 1989-09-13 | 钱宪 | Automatic refrigerator protector |
| CN203761015U (en) * | 2014-04-11 | 2014-08-06 | 浙江商业职业技术学院 | Electricity utilization protection circuit for students' dormitory |
| CN204559096U (en) * | 2015-05-05 | 2015-08-12 | 李思文 | A kind of security appliance protective circuit |
| CN206164083U (en) * | 2016-07-22 | 2017-05-10 | 河南理工大学 | Novel power consumption protector |
-
2017
- 2017-03-06 CN CN201710126580.2A patent/CN106849003A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2044337U (en) * | 1989-02-13 | 1989-09-13 | 钱宪 | Automatic refrigerator protector |
| CN203761015U (en) * | 2014-04-11 | 2014-08-06 | 浙江商业职业技术学院 | Electricity utilization protection circuit for students' dormitory |
| CN204559096U (en) * | 2015-05-05 | 2015-08-12 | 李思文 | A kind of security appliance protective circuit |
| CN206164083U (en) * | 2016-07-22 | 2017-05-10 | 河南理工大学 | Novel power consumption protector |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108962676A (en) * | 2018-07-20 | 2018-12-07 | 东北大学 | A kind of anti-decompression device of direct current displaced type based on T-type bridge structure |
| CN108962676B (en) * | 2018-07-20 | 2019-06-04 | 东北大学 | A kind of anti-decompression device of direct current displaced type based on T-type bridge structure |
| CN109088392A (en) * | 2018-09-06 | 2018-12-25 | 深圳和而泰智能控制股份有限公司 | A kind of protection circuit and electronic equipment |
| CN109088392B (en) * | 2018-09-06 | 2024-04-05 | 深圳和而泰智能控制股份有限公司 | Protection circuit and electronic equipment |
| CN112117740A (en) * | 2020-08-21 | 2020-12-22 | 广州亚美智造科技有限公司 | Under-voltage protection trigger circuit, under-voltage protection device and power supply system |
| CN112653321A (en) * | 2020-12-24 | 2021-04-13 | 上海汽车工业(集团)总公司 | Cross overvoltage comparison circuit and EPS power module |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20170613 |