CN101304141B

CN101304141B - Automatic power off extension board

Info

Publication number: CN101304141B
Application number: CN200810035522XA
Authority: CN
Inventors: 范亦卿
Original assignee: Shanghai Institute of Technology
Current assignee: Shanghai Institute of Technology
Priority date: 2008-04-02
Filing date: 2008-04-02
Publication date: 2010-06-02
Anticipated expiration: 2028-04-02
Also published as: CN101304141A

Abstract

The invention relates to an automatic power-off extension cord board, which includes a main circuit and a control circuit. The two-conductor plug and the two-conductor socket of the main circuit are connected through the normally open contact of the first relay connected in series and the magnetic induction part of the electronic undercurrent relay. Connection, the control circuit controls the switch of the normally open contact of the first relay according to the current size to achieve the automatic power-off function, so that when the electrical appliance is not in use, it will automatically power off, reducing unnecessary power consumption and saving power. Consumption, reduce the consumption of internal components of electrical appliances, and reduce unnecessary economic losses of the family.

Description

Auto-power-off line-delaying board

Technical field

The present invention relates to a kind of appliance cut-off equipment, particularly a kind of auto-power-off line-delaying board.

Background technology

Power board is a present domestic factory electric equipment commonly used, easy to usely can drag several electric equipments simultaneously, it is again an equipment that is used to cut off the power supply simultaneously, but few people form the custom of turn-offing power board conveniently, though a cut-off button is all arranged on present most power board, be particular about the society that energy savings and automaticity height combine now, household electrical appliance all have a minimum power consumption to exist under obsolete situation, and how to accomplish makes the best of both worlds is the target that people pursue.

Summary of the invention

The present invention be directed to household electrical appliance also have power consumption under obsolete situation the problem that has now, a kind of auto-power-off line-delaying board has been proposed, can be when electrical equipment be obsolete, automatically outage, reduced unnecessary power consumption, consumption that can saves energy reduces the consumption of electrical equipment inner member, reduces the unnecessary economic loss of family.

Technical scheme of the present invention is: a kind of auto-power-off line-delaying board, comprise major loop and control loop, major loop two line traps partly are connected by the normally opened contact of first relay of series connection and the magnetic strength of electronic less current relay with two wire sockets, connect both ends of power after two parallel control loops and the fuse series connection, first control loop is push-button switch, the second relay normally-closed contact, the series connection of first relay coil, one normally opened contact of first relay and at the push-button switch two ends plays self-locking action; In parallel and first relay normally open contact series connection of three groups of circuit of second relay coil of connecting of the second control loop time relay coil, time relay normally opened contact series electrical minor under current relay coil, electronic less current relay normally opened contact.The described time relay adopts variable time-setting relay.Described relay adopts power relay, and set current value is big.Described current relay adopts adjustable electric magnetic inductive current relay, does not influence the measurement loop voltage.

Beneficial effect of the present invention is: the present invention may be when electrical equipment be obsolete, and outage has reduced unnecessary power consumption automatically, consumption that can saves energy, reduce the consumption of electrical equipment inner member, reduce the unnecessary economic loss of family, improve the electrical equipment safety in utilization.

Description of drawings

Fig. 1 is an auto-power-off line-delaying board electrical schematic diagram of the present invention;

Fig. 2 is an auto-power-off line-delaying board electric hookup of the present invention.

Embodiment

Auto-power-off line-delaying board electrical schematic diagram of the present invention as shown in Figure 1, EUCR are electronic less current relay 20, and FU is a fuse 40, and KA1, KA2 are

power relay

60,80, and KT is the time relay 70, and SB is a push-button switch 50.

Major loop two line traps 10 partly are connected by the normally opened contact of the power relay 60 of series connection and the magnetic induction of electronic less current relay 20 with two wire sockets 30, connect both ends of power after two parallel control loops and fuse 40 series connection, the first control loop push-button switch 50, power relay 80 normally-closed contacts, the series connection of power relay 60 coils, one normally opened contact of power relay 60 and at push-button switch 50 two ends plays self-locking action; The second control loop time relay, 70 coils, the time relay 70 normally opened contact series electrical minor under current relays 20 coils, the series connection three groups of circuit parallel connections of power relay 80 coils of electronic less current relay 20 normally opened contacts and the series connection of power relay 60 normally opened contacts.When push-button switch 50 is pressed; first control loop gets; power relay 60 coils get; the self-locking of normally opened contact closed-loop path; push-button switch 50 disconnects; the loop still keeps; the second control loop time relay, 70 coils must be established the beginning time-delay by cable; delay time can be set; time is to be used for waiting for that the user uses socket, and the time, electronic less current relay 20 coils got to the normally opened contact closure; the beginning undercurrent protection; if at this moment major loop does not have load to insert or load access and electric current arranged less than set point, electronic less current relay 20 normally opened contact closed power relays 80 coils get electric, and normally-closed contact disconnects; the first control loop dead electricity; power relay 60 coil losing electricities, contact recover often to open the major loop outage, if load access and electric current are arranged greater than set point; electronic less current relay 20 normally opened contacts are failure to actuate, the major loop operate as normal.

Winding diagram and operation principle as shown in Figure 2:

Connection circuit 1:61-62-63 (5-9)-29-21-13-14-66

The 5-9 in parallel of 62-63 place

Change back the road for opening the loop, when work, press the button switch, relay K A1 starts working, relay K A1 coil invocation point, and the normal open switch closure, 5-9 locking press button switch 62-63 makes relay K A1 not disconnected by push-button switch and quits work.Play the locking press button switch, engage relay KA1 coil, it is closed that relay normally open is got an electric shock, and can get the electric relay K A1 outage that makes according to the KA2 coil.

Connection circuit 2:61-8-12-65-64-66

Changeing back the road is the socket power circuit, when relay K A1 in loop 1 behind the invocation point, relay K A1 normal open switch closure, the 8-12 conducting, at this moment and since relay K A1 often open get an electric shock closed, the socket energising.

Connection circuit 3:61-8-12-54-53-66

Changeing back the road is time relay power circuit, when relay K A1 in loop 1 behind the invocation point, relay K A1 normal open switch closure, the 8-12 conducting, at this moment, time relay energising picks up counting, timing time is 0～10 minute (user can regulate).Make time relay energising, pick up counting, this time is opened electrical appliance for to plug in an enough normal time to the user.

Connection circuit 4:61-8-12-52-48-A2-A1-66

This loop is a under current relay EUCR power circuit, when relay K A1 in loop 1 behind the invocation point, relay K A1 normal open switch closure, the 8-12 conducting, and after the time relay timing end, the timing closing closing of contact, the EUCR coil gets electric, and EUCR starts working, and electric current in the socket is detected.

Connection circuit 5:61-8-12-95-98-33-34-66

This loop is the outage loop, when getting, EUCR starts working after electric, if detect electric current less than the set definite value of user, and EUCR normally opened contact closure, then relay K A2 coil gets.Relay K A2 coil get electric after, relay K A2 normally-closed contact is opened, at this moment, electric current disconnects in the circuit 1, relay K A1 coil losing electricity, then relay K A1 normally opened contact restores to the original state.

The operation principle of total loop: be beginning when pressing the button, power board begins energising, at this moment, and relay K A1 self-locking, the time relay is connected, pick up counting, after the time that arrives user's setting, EUCR begins to connect, detect the electricity consumption current conditions of power board, if greater than the power-down value that the user sets, then power board does not cut off the power supply, the electrical appliance operate as normal.If less than the power-down value that the user sets, then power board cuts off the power supply automatically, the electrical appliance dead electricity.If do not transferred under the situation of standby after the user opened or opens in the time that set in 0～10 minute, this socket also can normal power down.

After example 1 presses the button switch 50, the normal television set that starts in 4 minutes: under the television set normal operation (electric current is 0.3 ampere), 4 hours no abnormal situations and can operate as normal.After 6 hours, press TV remote controller, make television set be in standby (electric current is 0.03 ampere) situation, 1 second less than, television set dead electricity.Be in closed condition.After pressing the button switch 5, fail normally to start television set in 4 minutes, television set is under stand-by time (electric current the is 0.03 ampere) situation: after 4 minutes, the television set dead electricity is in closed condition.After pressing the button switch 5, normally started television set (electric current is 0.3 ampere) in 4 minutes, in 4 minutes, pressed TV remote controller again, television set has been under the holding state (electric current is 0.03 ampere), and fails to restart television set.After 4 minutes, the power board dead electricity, television set is in closed condition.

Example 2 with press in 10 minutes SB push-button switch time starteds, cut-off current is that 2.0 amperes of (promptly less than outage automatically after 2.0 amperes), turn-off times are 20 seconds, electrical appliance is 1 DC frequency converting air-conditioner of Hitachi (model: a26AX) be example: during this air-conditioning operate as normal, electric current is 11.2 amperes, and electric current is 0.115 ampere in the time of standby.After pressing the button switch, the normal air-conditioning that starts in 10 minutes: under air-conditioning operate as normal (electric current the is 11.2 amperes) situation, 12 hours no abnormal situations and can operate as normal.After 12 hours, press air-conditioning remote control, make air-conditioning be in standby (electric current is 0.115 ampere) situation, after 20 seconds, the air-conditioning dead electricity.Be in closed condition.After pressing the button switch, fail normally to start air-conditioning in 10 minutes, air-conditioning is under standby (electric current the is 0.115 ampere) situation: after 10 minutes, the air-conditioning dead electricity is in closed condition.After pressing the button switch, normally started air-conditioning (electric current is 11.2 amperes) in 10 minutes, in 8 minutes, pressed air-conditioning remote control again, air-conditioning has been under the holding state (electric current is 0.115 ampere), and fails to restart air-conditioning.After 10 minutes, the power board dead electricity is in the air-conditioning closed condition.

User oneself sets and opens the control time, opens the control time setting range: 0～10 minute, and after promptly the user presses the button switch, the time interval of normally opening electrical appliance equipment.Make the user have the long time interval to remove to open electrical appliance.

The user can own set the electric current that turn-offs electrical appliance, and the Current Control setting range: 0.1～6.0 ampere, set point is the operating current just often less than electrical appliance, the operating current when operating current during greater than the standby of electrical appliance or shutoff.Make the user come the corresponding different cut-off current value of self-control according to different electrical appliances.

This auto-power-off line-delaying board can extensively apply to all kinds of household electrical appliances, such as: household electrical appliances such as television set, DVD, VCD, air-conditioning, water heater.

Configuration selection: Korea S three and electronic less current relay EUCR (EUCR-2C) 05R 220D V

The electric time relay H3Y-2220VAC of Shen Le 10M

The electric power relay JQX-13F-KF-2CL of Shen Le

Index request: rated operational voltage: 220VAC

Operating voltage range: rated voltage 85-110%

Output voltage: 220VAC

Operating ambient temperature :-10 ℃～55 ℃

Working life:＞10 ⁷Inferior.

Claims

1. auto-power-off line-delaying board, comprise major loop and control loop, major loop two line traps partly are connected by the normally opened contact of first relay of series connection and the magnetic strength of electronic less current relay with two wire sockets, it is characterized in that, described control loop is composed in parallel by first control loop and second control loop, connect both ends of power after two parallel control loops and the fuse series connection, first control loop is a push-button switch, the second relay normally-closed contact, the series connection of first relay coil, one normally opened contact of first relay is connected in parallel on the push-button switch two ends, plays self-locking action; Second control loop divides three groups of circuit, be respectively time relay coil, time relay normally opened contact series electrical minor under current relay coil, electronic less current relay normally opened contact second relay coil of connecting, after three groups of circuit parallel connections and the series connection of first relay normally open contact.

2. auto-power-off line-delaying board according to claim 1 is characterized in that the described time relay adopts variable time-setting relay.

3. auto-power-off line-delaying board according to claim 1 is characterized in that described relay adopts power relay, and set current value is big.

4. auto-power-off line-delaying board according to claim 1 is characterized in that described electronic less current relay adopts the electromagnetic induction under current relay of adjustable current.