CN211182707U

CN211182707U - Power-off device and socket

Info

Publication number: CN211182707U
Application number: CN201922428810.8U
Authority: CN
Inventors: 刘永杰
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-12-27
Filing date: 2019-12-27
Publication date: 2020-08-04
Anticipated expiration: 2029-12-27

Abstract

The utility model discloses a complete outage device, the utility model discloses a outage device includes detection module, comparison module, timing module and on-off control module, the detection module output is connected with comparison module's input, comparison module's output is connected with timing module input, timing module's output is connected with on-off control module's input, detection module detects the electric current size between commercial power input and the load, when comparison module received input signal is less than the setting value, on-off control module cuts off load and outage device and commercial power's being connected, the potential safety hazard of power consumption has been stopped, and simultaneously, timing module can also set up the outage time, can break off the connection of load and commercial power according to people's demand.

Description

Power-off device and socket

Technical Field

The utility model belongs to the technical field of the socket and specifically relates to a device and socket that can cut off power supply completely.

Background

The socket is the article commonly used in the production life, has all contained outage device in many current sockets, can cut off the connection of load and commercial power, and under the environment of most power consumptions, outage device can make the intelligent, thorough disconnection commercial power of load to make things convenient for people's life, it is safer to use the electricity.

Present outage device structure is complicated and can't realize intelligent outage, if can't realize load automatic cutout under standby state, this kind of outage device is with the electric current that detects load itself to go to realize, and when load outage back, this outage device self still is in connected state with the commercial power to potential safety hazard and power loss have been increased.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a power-off device mainly includes detection module, comparison module and on-off control module.

The utility model discloses still provide a outage socket, this outage socket internally mounted outage device.

In one aspect, an embodiment of the present invention provides a power cutoff device, including detection module, comparison module and on-off control module, the detection module output with the input of comparison module is connected, the output of comparison module with the on-off control module input is connected.

Further, power-off device still includes timing module, timing module's input is connected the output of comparison module, timing module's output is connected switch control module's input sets for specific outage time through timing module, guarantees that the charger is full of the electricity and cuts off the power supply again, avoids the charger overcharge and leads to incident such as fire simultaneously, has guaranteed people's the security of the lives and property.

Furthermore, the power-off device further comprises an indication unit, wherein the indication unit is connected with the output end of the commercial power and used for displaying the working state of the power-off device, and the indication unit comprises a light-emitting diode.

Furthermore, the detection module comprises a mutual inductor, a first potentiometer, a rectifier bridge and a filter circuit, the mutual inductor is connected with the first potentiometer in parallel, two ends of the mutual inductor are connected with the rectifier bridge, the other end of the rectifier bridge is connected with the filter circuit, and the filter circuit outputs a direct current signal to the comparison module.

Furthermore, the comparison module comprises a comparator, a first potentiometer and a fourth resistor, one end of the first potentiometer is connected with the power supply, the other end of the first potentiometer is connected with the positive input end of the comparator, one end of the fourth resistor is connected with the positive input end of the comparator, the other end of the fourth resistor is grounded, the negative input end of the comparator is connected with the detection module, and the output end of the comparator is connected with the input end of the timing module.

Furthermore, the timing module comprises a first triode and a timing integrated circuit, the base of the first triode is connected with the output end of the comparison module, the emitter of the first triode is connected with the input end of the timing integrated circuit, and the output end of the timing integrated circuit is connected with the input end of the switch control module.

Further, the switch control module includes second triode, third triode, eighth diode and relay, the base of second triode is connected the output of timing module, the collecting electrode of second triode is connected the base of third triode, the collecting electrode of third triode with the relay is connected, the relay with the diode is parallelly connected.

Furthermore, the timing integrated circuit is a timing thick film, and the timing thick film is a thick film circuit with a timing function.

Through the utility model discloses a power-off device can real-time detection mains supply return circuit input current's change to confirm load behavior according to the change of electric current, if normal work, the circumstances such as out of work and standby, reach thoroughly disconnection commercial power, guarantee power consumption safety according to the actuation and the disconnection of the behavior control relay of load.

In a second aspect, an embodiment of the present invention provides a socket including the power cutoff device for a socket.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of a power cutoff device according to the present invention;

fig. 2 is a schematic structural diagram of another embodiment of the power cutoff device of the present invention;

fig. 3 is a schematic circuit diagram of another embodiment of the power cutoff device of the present invention;

fig. 4 is a specific circuit diagram of another embodiment of the power cutoff device of the present invention.

Detailed Description

The conception and the resulting technical effects of the present invention will be described clearly and completely with reference to the following embodiments, so that the objects, features and effects of the present invention can be fully understood. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and other embodiments obtained by those skilled in the art without inventive labor based on the embodiments of the present invention all belong to the protection scope of the present invention.

An embodiment of the utility model provides a power-off device, this power-off device comprises detection module, comparison module and on-off control module. Referring to fig. 1, the output end of the detection module is connected with the input end of the comparison module, and the output end of the comparison module is connected with the input end of the switch control module. When the intelligent power supply is used, the S key is touched lightly, the load is electrified, a mutual inductor and a rectifier bridge are arranged in the detection module, and the detection module senses the current of the commercial power input end and the load through the mutual inductor. When the detection module senses a small current, the output signal of the detection module is reduced, the comparison module compares the output signal with a set value, and when the output signal is smaller than the set value, the switch control module is disconnected, and the load and the power-off device of the embodiment completely disconnect the commercial power, so that potential safety hazards are avoided, and power is saved.

In other embodiments, referring to fig. 2, the power-off device further includes a timing module, the timing module is disposed between the comparison module and the switch control module, an output end of the comparison module is connected to an input end of the timing module, an output end of the timing module is connected to an input end of the switch control module, when an input signal of the comparison module is smaller than a set value, the timing module starts timing, when timing time reaches a predetermined time, the switch control module is disconnected, and the load and the power-off device of this embodiment completely disconnect the commercial power. The power-off device of this embodiment can realize intelligent outage, and when the load was the charger, the charger got into the electric current of floating after filling the state and diminishes, but the charger is not full of the electricity, and consequently the specific outage time of accessible timing module setting is guaranteed the charger and is full of the electricity and cut off power supply again, avoids the charger overcharge and leads to incident such as fire simultaneously, has guaranteed people's the security of the lives and property.

Referring to fig. 3, fig. 3 is a specific circuit diagram of other embodiments of the present invention, wherein the detecting module includes a transformer L H, a first potentiometer RP1, a rectifying bridge, a first capacitor C1, a second capacitor C2, a first resistor R1, a second resistor R2, and a third resistor R3, the second capacitor C2 and the third resistor R3 are connected in parallel to form a filter circuit, the rectifying bridge includes a first diode D1, a second diode D2, a third diode D3, and a fourth diode D4., one end of the transformer L H is connected to the anode of the first diode D1 and the cathode of the second diode D2, the other end of the transformer 2H is connected to the cathode of the third diode D2 and the anode of the fourth diode D2, the first capacitor C2 is connected in parallel to the transformer 2H, the first potentiometer RP 72 and the first resistor R2 are connected in parallel to the anode of the first diode D2, the other end of the first resistor R2 and the cathode of the first diode R2 are connected to the filter circuit, and the other end of the first resistor R2 is connected to the ground.

The comparison module comprises a comparator IC, a second potentiometer RP2, a fourth resistor R4, a fifth resistor R5, a sixth resistor R6, an eighth resistor R8, a twelfth resistor R12, a fifth diode D5 and a third capacitor C3, wherein one end of the second potentiometer RP2 is connected with a 12V power supply, and the other two ends of the second potentiometer RP2 are connected with the positive input end of the comparator IC. One end of the fourth resistor R4 is connected to the positive input end of the comparator IC, the other end of the fourth resistor R4 is connected to ground, the pin 5 of the comparator IC is connected to a 12V power supply, and the pin 4 is connected to ground. One end of a fifth resistor R5 is connected with a pin 1 of the comparator IC, one end of a sixth resistor R6, the anode of an eighth capacitor C8 and one end of a twelfth resistor R12, the other end of the fifth resistor R5 is connected with the anode of a fifth diode D5, the cathode of an eighth capacitor C8 is grounded, the other end of the sixth resistor R6 is connected with a seventh resistor R7 and the base of a first triode Q1, the other end of the twelfth resistor R12 is connected with a 12V power supply and an eighth resistor R8, and the other end of the eighth resistor R8 is connected with the cathode of a fifth diode D5, the collector of a second triode Q2 and the base of a third triode Q3.

The timing module mainly comprises a seventh resistor R7, a first triode Q1, a ninth capacitor C9, a timing thick film HM, a third potentiometer RP3 and a ninth resistor R9. One end of the seventh resistor R7 is connected with the sixth resistor R6 and the base of the first triode Q1, the other end of the seventh resistor R7 is connected with the 5V power supply and the collector of the first triode Q1, the emitter of the first triode Q1 is connected with the positive electrode of the ninth capacitor C9 and the 5 pins of the timing thick film HM, two ends of the third potentiometer are respectively connected with the 2 pins and the 3 pins of the timing thick film HM, the 4 pins of the timing thick film HM are grounded, one end of the ninth resistor R9 is connected with the 1 pin of the timing thick film HM, and the other end of the ninth resistor R9 is connected with the base of the second triode Q.

The switch control module mainly comprises a second triode Q2, a third triode Q3, an eighth diode D8 and a relay J. The emitter of the second triode Q2 is grounded, the base thereof is connected with the ninth resistor R9, and the collector thereof is connected with the eighth resistor R8 and the base of the third triode Q3. The emitter of the third triode Q3 is grounded, the collector thereof is connected with the anode of the eighth diode D8 and one end of the relay J, the cathode of the eighth diode D8 is connected with the 12V power supply, and the other end of the relay J is connected with the 12V power supply. Switches JK1 and JK2 of the relay J are connected with a mains switch S key. The eighth diode is freewheeling diode the utility model discloses in can protect the relay not punctured or burn out by induced voltage.

Before the power-off device is used, the power-off device is connected with a mains supply and a load. The load is current with electrical apparatus, does not touch the S key, the utility model discloses a power-off device is out of work, and the output does not have the output. When the S key is touched lightly, the power-off device and the load are powered on, the circuit generates 12V voltage, the third triode Q3 is conducted, the relay J attracts, the relay switches JK1 and JK2 are conducted, the load works normally, 1 pin of the timing thick film HM outputs low level, the second triode Q2 is cut off, the third triode Q3 continues to be conducted, the relay attracts continuously, and the load works normally. The S key is turned off after being lightly touched and electrified, and the load can be normally electrified and operated due to the attraction of the J switch of the relay.

When the load is in standby state or charging current is less, the voltage of output to the negative input end of comparator IC of detection module's mutual-inductor L H and circuit reduces, when the negative input end voltage of comparator IC is less than the voltage of comparator IC positive input end, comparator IC's 1 foot output low level, first triode Q1 switches on, trigger 5 feet of timing thick film HM, timing thick film HM begins to time, when the timekeeping is to the preset time, timing thick film HM's 1 foot output high level, second triode Q3 switches on, third triode Q3 ends, the switch JK1 of relay, JK2 disconnection, then the utility model discloses a power-off device and load disconnect the commercial power completely, reach safe power consumption's purpose.

Referring to fig. 3, the eighth capacitor C8 in the power failure apparatus of the present embodiment is used to prevent the timing thick film HM from being triggered by mistake, when the circuit encounters an unexpected situation, the load current suddenly decreases in a very short time, and at this time, the pin 1 of the comparator IC outputs a low level, because the eighth capacitor C8 discharges, the base of the first transistor Q1 maintains a high level in a short time, and the first transistor Q1 is still turned off, and the timing thick film HM is not triggered, thereby avoiding the situation that the current in the circuit unexpectedly decreases. If the eighth capacitor C8 is discharged, and the pin 1 of the comparator IC still outputs a low level, the first transistor Q1 is turned on, and the timing thick film HM is triggered to start timing.

When the loads connected with the mains supply are different, the current of the input end is also different, the first potentiometer RP1 and the second potentiometer RP2 can be adjusted for different loads, and the voltage of the positive input end and the voltage of the negative input end of the comparator IC can be changed by adjusting the resistance values of the first potentiometer RP1 and the second potentiometer RP 2. When outage device needs different trigger current, the accessible is adjusted the resistance value adjustment outage trigger current of first potentiometre RP1 and first resistance R1, makes the utility model discloses an outage device adapts to different with electrical apparatus.

The utility model discloses can also change the timing time of timing thick film HM through the resistance value of adjusting third potentiometre RP 3. When the power-off device of the utility model is connected with the charger, the power-off time of the power-off device can be delayed by adjusting the resistance value of the third potentiometer RP3, and the extension time can be set to 5s-100 h. Because the charger generally is under the state of floating charge, and charging current descends, can trigger the outage of outage device, through adjusting third potentiometre RP3 resistance value, can satisfy under the prerequisite of being full of the electricity, avoid charging the electric energy waste that leads to always, avoid the charger to overcharge simultaneously and lead to incident such as fire, guaranteed people's life and property safety.

In other embodiments, referring to fig. 4, the power cut-off device further comprises an indication unit connected to the output of the mains. The indicating unit is composed of a light emitting diode D9 and a tenth resistor R10, and the light emitting diode D9 and the tenth resistor R10 are connected in series. When the power cutoff device is in the energized state, the light emitting diode D9 is on; when the power cutoff device is in the power cutoff state, the light emitting diode D9 goes out. The indicating unit can audio-visually display the working condition of the power-off device, and a user can quickly know whether the load is powered off or not, so that the daily power utilization safety of the user is ensured.

Through the utility model discloses, can confirm load operating condition by the change of real-time detection commercial power input loop current, when the load was in standby state or when floating the state of filling, the switch disconnection of outage device drive relay has realized that outage device and load can both thoroughly break off the commercial power, guarantee power consumption safety.

The power-off device is installed in the existing socket, so that the space is saved, and the power-off device can be conveniently used by people.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art. Furthermore, the embodiments of the present invention and features of the embodiments may be combined with each other without conflict.

Claims

1. A power disconnect device, comprising: the device comprises a detection module, a comparison module and a switch control module, wherein the output end of the detection module is connected with the input end of the comparison module, and the output end of the comparison module is connected with the input end of the switch control module.

2. The power cutoff device of claim 1, further comprising a timing module having an input connected to the output of the comparison module and an output connected to the input of the switch control module.

3. The power-off device according to claim 1, wherein the detection module comprises a mutual inductor, a first potentiometer, a rectifier bridge and a filter circuit, the mutual inductor is connected with the first potentiometer in parallel, two ends of the mutual inductor are connected with the rectifier bridge, the other end of the rectifier bridge is connected with the filter circuit, and the filter circuit outputs a direct current signal to the comparison module.

4. The power-off device according to claim 2, wherein the comparing module comprises a comparator, a first potentiometer and a fourth resistor, one end of the first potentiometer is connected to the power supply, the other end of the first potentiometer is connected to the positive input end of the comparator, one end of the fourth resistor is connected to the positive input end of the comparator, the other end of the fourth resistor is grounded, the negative input end of the comparator is connected to the detecting module, and the output end of the comparator is connected to the input end of the timing module.

5. The power-off device of claim 2, wherein the timing module comprises a first transistor and a timing integrated circuit, a base of the first transistor is connected to the output terminal of the comparison module, an emitter of the first transistor is connected to the input terminal of the timing integrated circuit, and an output terminal of the timing integrated circuit is connected to the input terminal of the switch control module.

6. The power cutoff device of claim 2, wherein the switch control module comprises a second transistor, a third transistor, a freewheeling diode and a relay, wherein a base of the second transistor is connected to the output of the timing module, a collector of the second transistor is connected to a base of the third transistor, a collector of the third transistor is connected to the relay, and the relay is connected in parallel to the freewheeling diode.

7. The power cutoff device of claim 5, wherein the timing integrated circuit is a timing thick film, and the timing thick film is provided with a timing function.

8. The power cutoff device of claim 1, further comprising an indication unit connected to a mains output of the power cutoff device.

9. The power cutoff device of claim 8, wherein the indicating unit comprises a light emitting diode for displaying an operating state of the power cutoff device.

10. A power outlet comprising a power cut-off device as claimed in any one of claims 1 to 9.