AU2012100733A4

AU2012100733A4 - An energy saving electrical outlet

Info

Publication number: AU2012100733A4
Application number: AU2012100733A
Authority: AU
Inventors: Bing QIN
Original assignee: Ningbo Jiangbei Potek Electronics & Technology Co Ltd
Current assignee: Ningbo Jiangbei Potek Electronics & Technology Co Ltd
Priority date: 2011-12-26
Filing date: 2012-05-22
Publication date: 2012-06-28
Anticipated expiration: 2020-05-22
Also published as: CN202395253U

Abstract

Abstract An energy saving electrical outlet comprises a main control outlet socket, a relay connected to the main control outlet socket and used for turning on or turning off the power supply of the main control outlet socket, and a main control unit connected to the relay for controlling the relay; characterized in that the energy saving electrical outlet also comprises an automatic human detection circuit which is connected to the main control unit, and the main control unit comprises an automatic delayed turn-off module. Compared with the prior art, an automatic human detection circuit is provided, and the main control unit is equipped with an automatic delayed turn-off module; when the user leaves or falls asleep during watching TV, the energy saving electrical outlet can be activated to automatically turn off the television power supply connected with the main control outlet socket and the power supply of the electric equipment connected with all the assistant control outlet socket after the delayed time set becomes due.

Description

- 1 AUSTRALIA PATENTS ACT 1990 COMPLETE SPECIFICATION FOR AN INNOVATION PATENT ORIGINAL Name of Applicant: Ningbo Jiangbei Potek Electronics & Technology Co., Ltd. Actual Inventor: Bing Qin Address for Service is: SHELSTON IP 60 Margaret Street Telephone No: (02) 9777 1111 SYDNEY NSW 2000 Facsimile No. (02) 9241 4666 CCN: 3710000352 Attorney Code: SW Invention Title: An energy saving electrical outlet The following statement is a full description of this invention, including the best method of performing it known to us : File: 74777AUP00 An Energy Saving Electrical Outlet Field of the invention The present invention relates to an energy saving electrical outlet. Description of the Prior Art Most electric equipment such as television, air-condition, etc. still has a standby loss of more than 10 watt after turning off with the remote-control unit, and the table-model computers have standby loss of more than 10 watt after turning off. To completely wipe out the standby loss needs to fully turn off the power supply of electric equipment. However, after the power supply is completely turned off, in case of re-start, it is required to turn on the power supply first and then switch on the electric equipment, which does not conform to most people's use habit. For this purpose, an energy saving switch or energy saving electrical outlet is developed. The general principle of the energy saving switch or energy saving electrical outlet frequently used in the market at present takes the advantage of mutual inductance transformer, through the comparison of the current difference when the machine is started up or in standby state, to ensure that the machine is under the standby state, continuously controlling the circuit through the relay of the power supply used for connecting or cutting electric equipment to completely turn off the power of the electrical equipment and reach the purpose of eliminating standby loss. However, the power supply for work of the electric equipment will not be turned off by the energy saving electrical outlet in the market currently in case the circumscribed electric equipment is in working condition. In case the user leaves or falls asleep during watching TV, the television and other equipments will still keep working, which consumes lots of power. But the current energy saving electrical outlet does not take this use feature into account. Any discussion of the prior art throughout the specification should in no way be considered as an admission that such prior art is widely known or forms part of common general knowledge in the field. 2 Summary of the invention It is an object of the present invention to provide an energy saving electrical outlet with the function of turning off the power supply of electric equipment automatically. For achieving the above stated object, the energy saving electrical outlet comprises a main control outlet socket, a relay connected to the main control outlet socket and used for turning on or turning off the power supply of the main control outlet socket, and a main control unit connected to the relay for controlling the relay; characterized in that the energy saving electrical outlet also comprises an automatic human detection circuit which is connected to the main control unit, and the main control unit comprises an automatic delayed turn-off module. . As a preference, the automatic human detection circuit is an infrared sensor circuit or microwave circuit. As a preference, the energy saving electrical outlet also comprises a current detection circuit which is used for detecting the working current through an external electrical equipment connected to the main control outlet socket, the current detection circuit is connected to the main control unit. As a preference, the current detection circuit comprises a current transformer, a first electric resistance, a second electric resistance, a third electric resistance, a voltage-regulator diode and a electric capacity; both ends of the first electric resistance is respectively connected with the two output pins of the current transformer, the first end of the second electric resistance is connected with the first output pin of the current transformer, the second end of the second electric resistance is connected with the first end of the third electrical resistance, and the second end of the third electric resistance is connected with the main control unit; the negative pole of the voltage-regulator diode is connected with the second end of the second electric resistance, the positive pole of the voltage-regulator diode is connected with the second output pin of the current transformer; the first end of the electric capacity is connected with the second end of the third 3 electric resistance, the second end of the electric capacity is connected with the second output pin of the current transformer; and the second output pin of the current transformer is connected to the ground. As a preference, the energy saving electrical outlet further comprises multiple assistant control outlet socket which are connected with the relay, and the power supply of the multiple assistant control outlet socket is controlled by the relay. As a preference, the energy saving electrical outlet further comprises an infrared receiver module which is connected with the main control unit. As a preference, the energy saving electrical outlet further comprises an overheating-overvoltage-lightning protection module and a D.C. isolation power module, the circumscribed electric supply is connected with the input end of the overheating-overvoltage-lightning protection module, the output end of the overheating-overvoltage-lightning protection module is connected with the input end of the D.C. isolation power module, and the output end of the D.C. isolation power module is connected with the main control unit. As a preference, the energy saving electrical outlet further comprises a LED indicating module which is connected with the main control unit. Compared with the prior art, in this invention, an automatic human detection circuit is provided, and the main control unit is equipped with an automatic delayed turn-off module; when the user leaves or falls asleep during watching TV, the energy saving electrical outlet can be activated to automatically turn off the television power supply connected with the main control outlet socket and the power supply of the electric equipment connected with all the assistant control outlet socket after the delayed time set becomes due. Unless the context clearly requires otherwise, throughout the description and the claims, the words "comprise", "comprising", and the like are to be construed in an inclusive sense as opposed to an exclusive or exhaustive sense; that is to say, in the sense of "including, but not limited to". Brief Description of the Drawings A preferred embodiment of the invention will now be described, by way of 4 example only, with reference to the accompanying figures in which: FIG. 1 is a circuit block diagram of the energy saving electrical outlet in accordance with the embodiment of the present invention; and FIG.2 is a circuit diagram of the current detection circuit in accordance with the embodiment of the present invention. Detailed Description of the Preferred Embodiment To enable a further understanding of the innovative and technological content of the invention herein, refer to the detailed description of the invention and the accompanying drawings below: As shown in FIG. 1, the energy saving electrical outlet comprises a main control outlet socket 1, multiple assistant control outlet sockets 2, a relay 3 which is connected with the main control outlet socket 1 and multiple assistant control outlet socket 2 and has the function of turning on or turning off the power supply of the main control outlet socket 1 and multiple assistant control outlet sockets 2, a main control unit 4 connected with the relay 3 with the function of controlling the relay 3, an automatic human detection circuit 5 which is connected with the main control unit 4, a current detection circuit 6 which is connected to the main control unit 4 and used for detecting the working current through an external electrical equipment connected to the main control outlet socket 1, an infrared receiver module 7 which is connected with the main control unit 4, an overheating-overvoltage-lightning protection module 8, a D.C. isolation power module 9 and a LED indicating module 10. The circumscribed electric supply is connected with the input end of the overheating-overvoltage-lightning protection module 8, the output end of the overheating-overvoltage-lightning protection module 8 is connected with the input end of the D.C. isolation power module 9, the output end of the D.C. isolation power module 9 is connected with the main control unit 4, and the LED indicating module 10 is also connected with the main control unit 4 which comprises an automatic delayed turn-off module. In the embodiment, the current detection circuit 6 comprises a current transformer HG1, a first electric resistance R1, a second electric resistance R2, a third 5 electric resistance R3, a voltage-regulator diode Z and an electric capacity C; both ends of the first electric resistance RI is respectively connected with the two output pins of the current transformer HG1, the first end of the second electric resistance R2 is connected with the first output pin of the current transformer HG1, the second end of the second electric resistance R2 is connected with the first end of the third electrical resistance R3, and the second end of the third electric resistance R3 is connected with the main control unit 4; the negative pole of the voltage-regulator diode Z is connected with the second end of the second electric resistance R2, the positive pole of the voltage-regulator diode Z is connected with the second output pin of the current transformer HG 1; the first end of the electric capacity C is connected with the second end of the third electric resistance R3, the second end of the electric capacity C is connected with the second output pin of the current transformer HG 1; and the second output pin of the current transformer HG 1 is connected to the ground. In the embodiment, the main control unit 4 adopts a single-chip computer controller. The automatic human detection circuit 5, infrared receiver module 7, overheating-overvoltage-lightning protection module 8, the D.C. isolation power module 9 and the LED indicating module 10 are all conventional circuits. Under the overheating-overvoltage-lightning protection module 8, the energy saving electrical outlet of the embodiment has the functions of anti lightning strike and overvoltage protection. The main control outlet socket 1 is specially used in the television for detecting the working condition of the television through the current detection circuit 6 in the electrical outlet. When the television is in the standby condition, the current of the television is inputted in MCU through the current detection circuit composed by HG I and the internal program of MCU controls the turn-on and turn-off of the relay through the comparison of the standard standby current, working current and blank screen current saved so as to reach the function of energy saving during the standby. The main control output socket 1 of the energy saving electrical outlet in the embodiment is equipped with the function of automatic 6 delayed turn-off, and the automatic delayed turn-off time can be set to be 5 minutes to 4 hours; upon reaching the previous minutes of the time set, the LED light on the LED indicating module will be flickered rapidly to prompt the user whether to use or not, then the user can confirm the continuous use through pressing arbitrarily the infrared transmitter or slightly shifting the human body; in case the user leaves or falls asleep during watching TV, the main control unit 4 will turn off the main control and assistant control power supply to reach the purpose of energy saving after the prompt of LED flicker finishes. The internal circuit of the energy saving electrical outlet in the embodiment is equipped with the function of receiving arbitrary infrared transmitter (such as television, air conditioning, DVD, set top box and other transmitters with the infrared carrier wave of 36KHz, 37KHz, 38KHz, 39KHz, 40KHz and 41KHz received) and the function of turning on the power supply of the main control output socket by using arbitrary infrared transmitter. 7

Claims

1. An energy saving electrical outlet comprising: a main control outlet socket; a relay connected to the main control outlet socket and used for turning on or turning off the power supply of the main control outlet socket; and a main control unit connected to the relay for control the relay; wherein the energy saving electrical outlet also comprises an automatic human detection circuit which is connected to the main control unit, and the main control unit comprises an automatic delayed turn-off module.

2. The energy saving electrical outlet of claim 1, wherein the automatic human detection circuit is an infrared sensor circuit or microwave circuit.

3. The energy saving electrical outlet of claim 1, wherein the energy saving electrical outlet also comprises a current detection circuit which is used for detecting the working current through an external electrical equipment connected to the main control outlet socket, the current detection circuit is connected to the main control unit.

4. The energy saving electrical outlet of claim 3, wherein: the current detection circuit comprises a current transformer, a first electric resistance, a second electric resistance, a third electric resistance, a voltage-regulator diode and a electric capacity; both ends of the first electric resistance is respectively connected with the two output pins of the current transformer, the first end of the second electric resistance is connected with the first output pin of the current transformer, the second end of the second electric resistance is connected with the first end of the third electrical resistance, and the second end of the third electric resistance is connected with the main control unit; the negative pole of the voltage-regulator diode is connected with the second end of the second electric resistance, the positive pole of the voltage-regulator diode is connected with the second output pin of the current transformer; the first end of the electric capacity is connected with the second end of the third 8 electric resistance, the second end of the electric capacity is connected with the second output pin of the current transformer; and the second output pin of the current transformer is connected to the ground.

5. The energy saving electrical outlet of any one of the preceding claims, wherein the energy saving electrical outlet further comprises multiple assistant control outlet socket which are connected with the relay, and the power supply of the multiple assistant control outlet socket is controlled by the relay.

6. The energy saving electrical outlet of any one of claims I to 4, wherein the energy saving electrical outlet further comprises an infrared receiver module which is connected with the main control unit.

7. The energy saving electrical outlet of any one of claims 1 to 4, wherein the energy saving electrical outlet further comprises an overheating-overvoltage-lightning protection module and a D.C. isolation power module, the circumscribed electric supply is connected with the input end of the overheating-overvoltage-lightning protection module, the output end of the overheating-overvoltage-lightning protection module is connected with the input end of the D.C. isolation power module, and the output end of the D.C. isolation power module is connected with the main control unit.

8. The energy saving electrical outlet of any one of claims I to 4, wherein the energy saving electrical outlet further comprises a LED indicating module which is connected with the main control unit. 9