CN202042678U - Automatic power-off power line - Google Patents

Automatic power-off power line Download PDF

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Publication number
CN202042678U
CN202042678U CN2010205451688U CN201020545168U CN202042678U CN 202042678 U CN202042678 U CN 202042678U CN 2010205451688 U CN2010205451688 U CN 2010205451688U CN 201020545168 U CN201020545168 U CN 201020545168U CN 202042678 U CN202042678 U CN 202042678U
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chip
diode
pin
resistance
power
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Expired - Fee Related
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CN2010205451688U
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Chinese (zh)
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吴牧霖
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Individual
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Individual
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Abstract

The utility model discloses an automatic power-off power line, which comprises a power plug, a power wire, a connecting plug and an automatic power-off control device, wherein the automatic power-off control device comprises a reset switch K, a delay switching device and a shell; the delay switching device comprises three parts; a rectifier circuit comprises a transformer, four diodes and two capacitors; a power real-time monitoring and calculating circuit of an electrical appliance comprises two chips, an inductor, two diodes, three resistors and three capacitors; a delay power-off circuit comprises a chip, a resistor, two capacitors, a diode and a relay; the delay switching device is arranged in the shell; the two ends of the power wire are connected with the power plug and the connecting plug respectively; and the connecting plug is a universal plug. The automatic power-off power line has a simple structure, is convenient to use and can be connected with different electrical appliances for use; electric energy can be saved; the electrical appliances can be protected; and accidents can be avoided.

Description

A kind of automatic outage power line
Technical field
The utility model relates to a kind of connector device, particularly a kind of automatic outage power line.
Background technology
Requisite arrangements of electric connection when power line is all electrical works.Existing power line is fixedlyed connected with electrical equipment usually, also has minority and electrical equipment to flexibly connect.And the length of power line is fixed usually, has some inconvenience in the process of using.
Present many electrical equipment all has remote-control closedown or idle function, and as TV, air-conditioning, computer, electric rice cooker etc., but after this shutdown, also in work, the life period of electrical equipment can shorten the stand-by circuit of electrical equipment for a long time, and the waste electric energy.
And if in case make electrical equipment after entering holding state, have the device that power supply is closed automatically, will play good energy-saving effect.
Therefore, providing a kind of can cut off the electricity supply automatically, and Artificial Control restore electricity at any time under the electric appliance standby state, and the automatic outage power line that simultaneously again can be neatly makes up with electrical equipment is that realistic meaning is arranged very much.
The utility model content
The purpose of this utility model provides a kind of automatic outage power line, and the utility model can cut off the power supply automatically and can restore electricity at any time at the electric appliance standby state, and is with the electrical equipment flexible combination, easy to use.
The technical scheme that adopts is:
A kind of automatic outage power line comprises auto-power-off control device, attaching plug, power lead and connection plug.
Its technical essential is:
Auto-power-off control device comprises: delay switch device, reset switch K and housing.
Offer the switch hole of installing reset switch K on housing, the delay switch device is installed in the described housing.
The delay switch device comprises: real-time monitoring calculation circuit of the power of rectification circuit, electrical appliance and delay cut-off circuit.
Rectification circuit comprises: transformer T, diode D1, diode D2, diode D3, diode D4, capacitor C 1 and capacitor C 2.
The primary coil two ends of transformer T in the delay switch device are connected in parallel on the power lead by reset switch K.Diode D1, diode D2, diode D3 and diode D4 form bridge rectifier, one end of transformer T secondary coil is connected with the number one pin of bridge rectifier, the other end of transformer T secondary coil is connected with No. four pin of bridge rectifier, No. second pin ground connection of bridge rectifier, after capacitor C 1 and capacitor C 2 parallel connections, No. three pin of one end and bridge rectifier is connected other end ground connection.
The real-time monitoring calculation circuit of the power of electrical appliance comprises: chip U1, chip U2, inductance L 1, diode D5, diode D6, resistance R 1, resistance R 2, resistance R 3, capacitor C 3, capacitor C 4 and capacitor C 5.
Inductance L 1 and live wire coupling, an end of inductance L 1 is connected with the AC1 of chip U1 end, and the AC2 end of the other end of inductance L 1 and chip U1 is connected.
The V-end ground connection of chip U1, the voltage output end V+ end of chip U1 is connected with the left end of resistance R 2, and the voltage output end V+ end of chip U1 is connected with the anode of diode D5 simultaneously, and the left end of resistance R 2 is by resistance R 1 ground connection.The negative terminal of diode D5 is connected with the right-hand member of resistance R 2, and the right-hand member of resistance R 2 is simultaneously by capacitor C 3 ground connection.The negative terminal of diode D5 is connected with the left end of resistance R 3 simultaneously, the left end of resistance R 3 is connected with the anode of diode D6, the negative terminal of diode D6 is connected with the right-hand member of resistance R 3, the left end of resistance R 3 is simultaneously by capacitor C 4 ground connection, the right-hand member of resistance R 3 is simultaneously by capacitor C 5 ground connection, No. 1 pin of chip U2 is connected with the right-hand member of resistance R 3, and No. 2 pin of chip U2 and No. 2 pin of chip U3 are connected.
Chip U1 is commercially available rectification chip KBU8D, and chip U2 is single-chip microcomputer PIC16F877, and described single-chip microcomputer PIC is the commercially available universal product, so repeated description not.
The delay cut-off circuit comprises: chip U3, resistance R 4, capacitor C 6, capacitor C 7, diode D7 and relay J.Chip U3 is 555 timers.
One end of resistance R 4 is connected with No. three pin of bridge rectifier, and No. 4 pin of chip U3 are connected with No. three pin of bridge rectifier with No. 8 pin simultaneously.The other end of resistance R 4 is connected with No. 6 pin of chip U3, and No. 6 pin of chip U3 are connected with No. 7 pin of chip U3, and No. 7 pin of chip U3 are simultaneously by capacitor C 7 ground connection.No. 5 pin of chip U3 are by capacitor C 6 ground connection.No. 1 direct ground connection of pin of chip U3, No. 3 pin of chip U3 and the negative terminal of diode D7 are connected the positive ending grounding of diode D7.No. 3 pin of chip U3 are connected the other end ground connection of relay J simultaneously with an end of relay J.
Real-time monitoring calculation circuit of the power of rectification circuit, electrical appliance and delay cut-off circuit are integrated on the circuit board, and circuit board is installed in the housing.
Power lead passes housing, and an end of power lead is fixedlyed connected with attaching plug, and the other end of power lead is fixedlyed connected with the connection plug.Described connection plug is a common pin, is known technology, so repeated description not.This connects plug and can be used with another patented product " a kind of convenient supply socket " of various electrical equipment and our company.
Automatic outage minimum power of the present utility model is a fixed value, for example: 5w or 10w.
Its operation principle is: after pressing reset switch K, obtain direct voltage about 12V through rectification circuit, this voltage is input to No. 4 pin and No. 8 pin of 555 timers, makes the relay J adhesive and keeps the interlocking closure with reset switch K, and electrical appliance obtains normal power supply from connecting plug.
Giving under the electrical equipment normal power supply situation, the variation of load end electrical appliance watt level can cause the variation (P=UI) of line current, can induce the current value of linear change with it through linear inductance L 1 herein, induced electricity flow valuve after over commutation and low-pass filtering is converted to voltage by measuring resistance R1 to be measured, by linear relationship, can obtain the sizes values of corresponding electrical appliance power.
The resistance of resistance R 1 can come to determine by experiment.If the electric current on the bringing onto load alternating current circuit is I, the electric current after linear mutual inductance rectification is kI (k is a constant), and then the magnitude of voltage on the R1 is kIR1.Therefore, when the design power scope of load end is P0~P1, should to carry out linearity corresponding with power of test 0~5V of single-chip microcomputer PIC, like this by the Single-chip Controlling program the corresponding judgement of encoded radio with the power detection value, can finish the detection of power, and further by with the threshold ratio of setting minimum power Pmin, the output of PIC can be changed to high-low level (0 and 1) respectively, and give No. 2 pin of 555 timers, and being used for realizing the function of delay cut-off, time delay can be passed through T=1.1R 4C 7Set.
Its advantage is: the utility model is simple in structure, and is easy to use, saves electric energy, good reliability, protection electrical equipment, the generation of stopping accident.
Description of drawings:
Fig. 1 is a kind of structural representation of automatic outage power line.
Fig. 2 is a kind of circuit diagram of automatic outage power line.
Embodiment
A kind of automatic outage power line comprises auto-power-off control device 10, attaching plug 7, power lead 8 and connects plug 9.
Auto-power-off control device 10 comprises: delay switch device, reset switch K and housing 6.
Offer the switch hole 5 of installing reset switch K on housing 6, the delay switch device is installed in 6 li of described housings.
The delay switch device comprises: real-time monitoring calculation circuit of the power of rectification circuit, electrical appliance and delay cut-off circuit.
Rectification circuit comprises: transformer T, diode D1, diode D2, diode D3, diode D4, capacitor C 1 and capacitor C 2.
The primary coil two ends of transformer T in the delay switch device are connected in parallel on the power lead 8 by reset switch K.Diode D1, diode D2, diode D3 and diode D4 form bridge rectifier, one end of transformer T secondary coil is connected with the number one pin of bridge rectifier, the other end of transformer T secondary coil is connected with No. four pin of bridge rectifier, No. second pin ground connection of bridge rectifier, after capacitor C 1 and capacitor C 2 parallel connections, No. three pin of one end and bridge rectifier is connected other end ground connection.
The real-time monitoring calculation circuit of the power of electrical appliance comprises: chip U1, chip U2, inductance L 1, diode D5, diode D6, resistance R 1, resistance R 2, resistance R 3, capacitor C 3, capacitor C 4 and capacitor C 5.
Inductance L 1 is connected with the AC1 of chip U1 end with live wire 11 couplings a, end of inductance L 1, and the AC2 end of the other end of inductance L 1 and chip U1 is connected.
The V-end ground connection of chip U1, the voltage output end V+ end of chip U1 is connected with the left end of resistance R 2, and the voltage output end V+ end of chip U1 is connected with the anode of diode D5 simultaneously, and the left end of resistance R 2 is by resistance R 1 ground connection.The negative terminal of diode D5 is connected with the right-hand member of resistance R 2, and the right-hand member of resistance R 2 is simultaneously by capacitor C 3 ground connection.The negative terminal of diode D5 is connected with the left end of resistance R 3 simultaneously, the left end of resistance R 3 is connected with the anode of diode D6, the negative terminal of diode D6 is connected with the right-hand member of resistance R 3, the left end of resistance R 3 is simultaneously by capacitor C 4 ground connection, the right-hand member of resistance R 3 is simultaneously by capacitor C 5 ground connection, No. 1 pin of chip U2 is connected with the right-hand member of resistance R 3, and No. 2 pin of chip U2 and No. 2 pin of chip U3 are connected.
Chip U1 is commercially available rectification chip KBU8D, and chip U2 is single-chip microcomputer PIC16F877.
The delay cut-off circuit comprises: chip U3, resistance R 4, capacitor C 6, capacitor C 7, diode D7 and relay J.Chip U3 is 555 timers.
One end of resistance R 4 is connected with No. three pin of bridge rectifier, and No. 4 pin of chip U3 are connected with No. three pin of bridge rectifier with No. 8 pin simultaneously.The other end of resistance R 4 is connected with No. 6 pin of chip U3, and No. 6 pin of chip U3 are connected with No. 7 pin of chip U3, and No. 7 pin of chip U3 are simultaneously by capacitor C 7 ground connection.No. 5 pin of chip U3 are by capacitor C 6 ground connection.No. 1 direct ground connection of pin of chip U3, No. 3 pin of chip U3 and the negative terminal of diode D7 are connected the positive ending grounding of diode D7.No. 3 pin of chip U3 are connected the other end ground connection of relay J simultaneously with an end of relay J.
Real-time monitoring calculation circuit of the power of rectification circuit, electrical appliance and delay cut-off circuit are integrated on the circuit board, and circuit board is installed in 6 li of housings.
Power lead 8 passes housing 6, and an end of power lead 8 is fixedlyed connected with attaching plug 7, and the other end of power lead 8 is fixedlyed connected with connection plug 9.
Described a kind of automatic outage power line: the minimum power of outage is 5W, and when charged power during less than 5W, the delay switch device time-delay that is installed on the power lead was cut off the electricity supply in 1 minute.After this, can pass through manual reset switch K energized.

Claims (2)

1. the power line that cuts off the power supply automatically comprises auto-power-off control device (10), attaching plug (7), power lead (8) and connects plug (9);
Auto-power-off control device (10) comprising: delay switch device, reset switch K and housing (6);
Offer the switch hole (5) of installing reset switch K on housing (6), the delay switch device is installed in described housing (6) lining;
The delay switch device comprises: real-time monitoring calculation circuit of the power of rectification circuit, electrical appliance and delay cut-off circuit;
Rectification circuit comprises: transformer T, diode D1, diode D2, diode D3, diode D4, capacitor C 1 and capacitor C 2;
The primary coil two ends of transformer T in the delay switch device are connected in parallel on the power lead (8) by reset switch K; Diode D1, diode D2, diode D3 and diode D4 form bridge rectifier, one end of transformer T secondary coil is connected with the number one pin of bridge rectifier, the other end of transformer T secondary coil is connected with No. four pin of bridge rectifier, No. second pin ground connection of bridge rectifier, after capacitor C 1 and capacitor C 2 parallel connections, No. three pin of one end and bridge rectifier is connected other end ground connection;
The real-time monitoring calculation circuit of the power of electrical appliance comprises: chip U1, chip U2, inductance L 1, diode D5, diode D6, resistance R 1, resistance R 2, resistance R 3, capacitor C 3, capacitor C 4 and capacitor C 5;
Inductance L 1 and live wire (11) coupling, an end of inductance L 1 is connected with the AC1 of chip U1 end, and the AC2 end of the other end of inductance L 1 and chip U1 is connected;
The V-end ground connection of chip U1, the voltage output end V+ end of chip U1 is connected with the left end of resistance R 2, and the voltage output end V+ end of chip U1 is connected with the anode of diode D5 simultaneously, and the left end of resistance R 2 is by resistance R 1 ground connection; The negative terminal of diode D5 is connected with the right-hand member of resistance R 2, and the right-hand member of resistance R 2 is simultaneously by capacitor C 3 ground connection; The negative terminal of diode D5 is connected with the left end of resistance R 3 simultaneously, the left end of resistance R 3 is connected with the anode of diode D6, the negative terminal of diode D6 is connected with the right-hand member of resistance R 3, the left end of resistance R 3 is simultaneously by capacitor C 4 ground connection, the right-hand member of resistance R 3 is simultaneously by capacitor C 5 ground connection, No. 1 pin of chip U2 is connected with the right-hand member of resistance R 3, and No. 2 pin of chip U2 and No. 2 pin of chip U3 are connected;
The delay cut-off circuit comprises: chip U3, resistance R 4, capacitor C 6, capacitor C 7, diode D7 and relay J;
One end of resistance R 4 and thirdly being connected of bridge rectifier, No. 4 pin of chip U3 and No. 8 pin simultaneously with thirdly being connected of bridge rectifier; The other end of resistance R 4 is connected with No. 6 pin of chip U3, and No. 6 pin of chip U3 are connected with No. 7 pin of chip U3, and No. 7 pin of chip U3 are simultaneously by capacitor C 7 ground connection; No. 5 pin of chip U3 are by capacitor C 6 ground connection; No. 1 direct ground connection of pin of chip U3, No. 3 pin of chip U3 and the negative terminal of diode D7 are connected the positive ending grounding of diode D7; No. 3 pin of chip U3 are connected the other end ground connection of relay J simultaneously with an end of relay J;
Real-time monitoring calculation circuit of the power of rectification circuit, electrical appliance and delay cut-off circuit are integrated on the circuit board, and circuit board is installed in housing (6) lining;
It is characterized in that: power lead (8) passes housing (6), and an end of power lead (8) is fixedlyed connected with attaching plug (7), and the other end of power lead (8) is fixedlyed connected with connection plug (9).
2. a kind of automatic outage power line according to claim 1, it is characterized in that: chip U1 is KBU8D, and chip U2 is single-chip microcomputer PIC16F877, and chip U3 is 555 timers.
CN2010205451688U 2010-09-28 2010-09-28 Automatic power-off power line Expired - Fee Related CN202042678U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010205451688U CN202042678U (en) 2010-09-28 2010-09-28 Automatic power-off power line

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010205451688U CN202042678U (en) 2010-09-28 2010-09-28 Automatic power-off power line

Publications (1)

Publication Number Publication Date
CN202042678U true CN202042678U (en) 2011-11-16

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105977742A (en) * 2016-07-08 2016-09-28 晋新纪 Intelligent automatic power-off data line and power-off method based on infrared ray sensing
CN107919586A (en) * 2016-10-07 2018-04-17 诺曼·R·伯恩 Power cord with intelligent switch
CN109066931A (en) * 2018-08-23 2018-12-21 合肥斯姆雷品牌管理有限公司 Power supply adapter for notebook computer D/C voltage intelligent charge connecting line
US11424561B2 (en) 2019-07-03 2022-08-23 Norman R. Byrne Outlet-level electrical energy management system

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105977742A (en) * 2016-07-08 2016-09-28 晋新纪 Intelligent automatic power-off data line and power-off method based on infrared ray sensing
CN107919586A (en) * 2016-10-07 2018-04-17 诺曼·R·伯恩 Power cord with intelligent switch
CN107919586B (en) * 2016-10-07 2021-10-19 诺曼·R·伯恩 Power line with intelligent switch
CN109066931A (en) * 2018-08-23 2018-12-21 合肥斯姆雷品牌管理有限公司 Power supply adapter for notebook computer D/C voltage intelligent charge connecting line
US11424561B2 (en) 2019-07-03 2022-08-23 Norman R. Byrne Outlet-level electrical energy management system

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C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20111116

Termination date: 20120928