Intelligent safe power supply circuit and socket

Abstract

The utility model discloses an intelligent safe power supply circuit. The circuit comprises at least one power supply circuit; the relay is used for controlling on-off of the power supply circuit; the control module controls on and off of the relay; the human body sensing module senses whether a person is near the socket; the plug insertion detection module is used for detecting whether a plug is inserted into the socket; the electric appliance switch on-off detection module detects whether the electric appliance switch is on; when the human body induction module, the plug insertion detection module and the electric appliance switch opening detection module output high levels, the control module controls the relay to be closed, and the power supply circuit is powered on. By integrating three functions of human body induction, plug insertion detection and electric appliance switch turn-on detection, the power supply circuit is electrified only when a human body is induced, the plug is inserted into the socket and the electric appliance switch is turned on, so that the power utilization safety is improved, the aging of an electric appliance circuit is slowed down, and the service life of the electric appliance circuit is prolonged.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of safe power supply of socket, in particular to an intelligent safe power supply circuit and socket. BACKGROUND

[0002] The use of electrical energy has had a profound impact on our lives and society. It has brought us convenience, efficiency and comfort, and has driven the development of technology and economy; electrical energy is widely used in various fields, such as home, business and industry; in the home, electrical energy is mainly used for power supply and driving various electrical appliances. We use electrical energy to light up the lights, heating, refrigeration, cooking, washing, entertainment and charging, etc. In the business and industrial field, electrical energy plays a more important role. Various mechanical equipment, production lines, instruments and meters need electrical energy to drive and work. Electrical energy is applied to manufacturing products, transportation, communication, information technology, medical equipment and many other industries. Power companies supply electrical energy to homes through the power grid, and we connect electrical energy to our devices through sockets. The safety of the socket is very important, because improper or unsafe use of the socket can cause fires, electric shocks and other safety accidents.

[0003] The socket, also known as power socket or switch socket, is an essential circuit component in every home. In the existing socket, if the switch is closed, the socket will always be in a power-on state. If water enters the socket or the live wire in the socket is touched by mistake, it is easy to cause electric shock and pose a great safety hazard. At the same time, if electrical equipment is inserted into the socket, it can easily increase the aging of the electrical equipment circuit and affect the service life of the electrical equipment circuit. SUMMARY

[0004] In order to solve the above technical problems, the present application provides an intelligent safe power supply circuit and socket, which integrates human body sensing, plug insertion detection and electrical appliance switch opening detection, so that the power supply circuit will only be powered on when a human body is sensed, the plug is inserted into the socket and the electrical appliance switch is opened. This improves the safety of electricity use and slows down the aging of the electrical equipment circuit, thereby prolonging the service life of the electrical equipment circuit.

[0005] In a first aspect, the present application provides an intelligent safe power supply circuit, which adopts the following technical solution:

[0006] An intelligent safe power supply circuit, comprising:

[0007] at least one power supply circuit;

[0008] a relay connected in series with the power supply circuit, for controlling the on-off of the power supply circuit;

[0009] a control module electrically connected with the relay, for controlling the opening and closing of the relay to control the on-off of the power supply circuit;

[0010] The human body sensing module is electrically connected with the control module, and is used for sensing whether there is a human body near the socket;

[0011] The plug insertion detection module is electrically connected with the control module, and is used for detecting whether the plug is inserted into the socket;

[0012] The appliance switch opening detection module is electrically connected with the control module, and is used for detecting whether the appliance switch is opened;

[0013] The power supply module is electrically connected with the control module, the human body sensing module, the plug insertion detection module and the appliance switch opening detection module, and is used for power supply;

[0014] When the human body sensing module, the plug insertion detection module and the appliance switch opening detection module all output high level, the control module controls the relay to be closed to make the power supply circuit be powered on.

[0015] Preferably, the current detection module is electrically connected with the control module, and the current detection module is used for detecting the current of the power supply circuit.

[0016] Preferably, the voltage detection module is electrically connected with the control module, and the voltage detection module is used for detecting the voltage of the power supply circuit.

[0017] Preferably, the human body sensing module is a radar sensing sensor.

[0018] In the second aspect, the application provides an intelligent safe power supply socket, which adopts the following technical scheme:

[0019] An intelligent safe power supply socket, which comprises a socket body and the above-mentioned intelligent safe power supply circuit.

[0020] In summary, the application has the following beneficial technical effects:

[0021] 1. The application integrates human body sensing, plug insertion detection and appliance switch opening detection, so that the power supply circuit is powered on only when a human body is sensed, the plug is inserted into the socket and the appliance switch is opened, thereby improving the safety of electricity use, slowing down the aging of the appliance device circuit and prolonging the service life of the appliance circuit.

[0022] 2. The application sets the current detection module, so that the current detection module can monitor the current of the power supply circuit in real time, and timely feedback to the control module when the current of the power supply circuit is too large, so that the control module disconnects the relay, and the working state of the power supply circuit can be better judged according to the active power detected by the current detection module and the voltage detection module. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 is a circuit diagram of the intelligent safe power supply circuit in the embodiment of the present application.

[0024] Reference signs: 11, power supply circuit; 12, relay; 13, control module; 14, human body induction module; 15, plug insertion detection module; 16, appliance switch opening detection module; 17, power module; 18, current detection module; 19, voltage detection module. DETAILED DESCRIPTION

[0025] The present application is further described in detail below with reference to the accompanying drawings.

[0026] The embodiment of the present application discloses an intelligent safe power supply circuit.

[0027] Referring to Figure 1 , the intelligent safe power supply circuit comprises a power supply circuit 11, a relay 12, a control module 13, a human body induction module 14, a plug insertion detection module 15, an appliance switch opening detection module 16, and a power module 17.

[0028] The power supply circuit 11 is powered by mains electricity, the number of the power supply circuit 11 is at least one, and the power supply circuit 11 comprises a live wire, a neutral wire, and a ground wire.

[0029] Referring to Figure 1 , the relay 12 is installed in series on the power supply circuit 11, and the relay 12 is used to control the on-off of the power supply circuit 11. The relay 12 has two control modes, i.e., electric control and manual control.

[0030] The control module 13 is electrically connected with the relay 12, and the control module 13 is used to control the on-off of the relay 12, so as to control the on-off of the power supply circuit 11. The control module 13 can be selected from single-chip microcomputers, microcontrollers, and other control components.

[0031] Referring to Figure 1 , the human body induction module 14 is electrically connected with the control module 13, and the human body induction module 14 is used to sense whether there is a person near the socket. The human body induction module 14 has a certain sensing range. When there is a person in the sensing range of the human body induction module 14, the human body induction module 14 outputs a high level to the control module 13. When there is no person in the sensing range of the human body induction module 14, the human body induction module 14 outputs a low level to the control module 13. In the embodiment, the human body induction module 14 can be selected from radar induction sensors.

[0032] In another implementable embodiment, the human body induction module 14 can also be selected from infrared induction sensors.

[0033] Referring toFigure 1 The plug insertion detection module 15 is electrically connected with the control module 13, and is configured to detect whether a plug is inserted into the socket. If the plug insertion detection module 15 detects that a plug is inserted into the socket, the plug insertion detection module 15 outputs a high level to the control module 13. If the plug insertion detection module 15 detects that no plug is inserted into the socket, the plug insertion detection module 15 outputs a low level to the control module 13.

[0034] The appliance switch opening detection module 16 is electrically connected with the control module 13, and is configured to detect whether the appliance switch is opened. If the appliance switch opening detection module 16 detects that the appliance switch is opened, the appliance switch opening detection module 16 outputs a high level to the control module 13. If the appliance switch opening detection module 16 detects that the appliance switch is not opened, the appliance switch opening detection module 16 outputs a low level to the control module 13.

[0035] The appliance switch can be a touch switch or a remote control switch on the appliance device. The appliance switch opening detection module 16 can detect whether the touch switch on the appliance device is opened, and can also detect whether the remote control switch on the appliance device is opened. That is, if the appliance device is provided with a remote control switch, the appliance switch opening detection module 16 is provided with two, one of which is configured to detect whether the touch switch on the appliance device is opened, and the other is configured to detect whether the remote control switch is opened. The two appliance switch opening detection modules 16 are electrically connected with the control module 13 through an OR gate control unit.

[0036] Specifically, the control module 13 is internally provided with an AND gate control unit, the human body sensing module 14, the plug insertion detection module 15 and the appliance switch opening detection module 16 are all electrically connected with the AND gate control unit, and the human body sensing module 14, the plug insertion detection module 15 and the appliance switch opening detection module 16 serve as three input ends of the AND gate control unit. When the electrical signals output by the human body sensing module 14, the plug insertion detection module 15 and the appliance switch opening detection module 16 are all high level, the AND gate control unit sends a corresponding high level signal to the control module 13, and then the control module 13 controls the relay 12 to be closed, the power supply circuit 11 is powered on and supplies power to the electrical appliance. If one or more of the electrical signals output by the human body sensing module 14, the plug insertion detection module 15 and the appliance switch opening detection module 16 are low level, the AND gate control circuit outputs a corresponding low level signal to the control module 13, and the control module 13 does not control the relay 12 to be closed, the relay 12 remains in an open state, and the power supply circuit 11 remains in a power-off state.

[0037] The power supply module 17 is electrically connected with the control module 13, the human body sensing module 14, the plug insertion detection module 15 and the appliance switch opening detection module 16, and is used to supply power to the control module 13, the human body sensing module 14, the plug insertion detection module 15 and the appliance switch opening detection module 16.

[0038] With reference to Figure 1 , the power supply module 17 supplies direct current to the control module 13, the human body sensing module 14, the plug insertion detection module 15 and the appliance switch opening detection module 16. Specifically, the front end of the power supply module 17 is electrically connected with the commercial power supply, the power supply module 17 has rectification and voltage reduction functions, and the power supply module 17 can rectify alternating current into direct current, and at the same time, the power supply module 17 can reduce the voltage of the commercial power supply to low voltage direct current that meets the use requirements of the control module 13, the human body sensing module 14, the plug insertion detection module 15 and the appliance switch opening detection module 16.

[0039] With reference to Figure 1 , the human body sensing safety power supply circuit 11 further comprises a current detection module 18, the current detection module 18 is electrically connected with the control module 13, and the current detection module 18 is used to detect the current of the power supply circuit 11, so as to judge the working state of the electrical appliance. In addition, the current detection module 18 can also feed back to the control module 13 when the current of the power supply circuit 11 is too large or the power supply circuit 11 is overloaded, so that the control module 13 controls the relay 12 to disconnect the power supply circuit 11.

[0040] The human body induction safety power supply circuit 11 further comprises a voltage detection module 19 electrically connected with the control module 13, the voltage detection module 19 being configured to detect the voltage of the power supply circuit 11, and the control module 13 being configured to determine the working condition of the electrical appliance according to the current and voltage of the power supply circuit 11, so as to control the relay 12 to disconnect the power supply circuit 11.

[0041] In use, only when the electrical signals output by the human body induction module 14, the plug insertion detection module 15 and the electrical appliance switch opening detection module 16 are all high level, the control module 13 controls the relay 12 to close, so that the power supply circuit 11 is closed and supplies power to the electrical appliance.

[0042] If one or more of the electrical signals output by the human body induction module 14, the plug insertion detection module 15 and the electrical appliance switch opening detection module 16 is low level, the control module 13 does not control the relay 12 to close, and the relay 12 remains in the disconnected state, so that the power supply circuit 11 maintains the power-off state.

[0043] If the control module 13 determines that the electrical appliance stops working according to the values of the current detection module 18 and the voltage detection module 19, the control module 13 controls the relay 12 to disconnect, so that the power supply circuit 11 is disconnected.

[0044] In use, after the electrical appliance starts under the above-mentioned starting conditions, it is considered that the person may leave the socket for a period of time during the use of the electrical appliance. Therefore, after the power supply circuit 11 completes the starting, a normally closed module can be used to replace the human body induction module, the output electrical signal of the normally closed module is always high level. Therefore, after the power supply circuit 11 completes the starting, even if the human body induction module 14 outputs low level, but the electrical signals output by the plug insertion detection module 15 and the electrical appliance switch opening detection module 16 are both high level, so that the power supply circuit 11 can still maintain the power-on state.

[0045] The embodiment of the application further discloses an intelligent safety power supply socket, which comprises a socket body and the intelligent safety power supply circuit disclosed in the above-mentioned embodiment.

[0046] The above are the preferred embodiments of the application, which do not limit the protection scope of the application, and therefore: any equivalent changes made according to the structure, shape and principle of the application should be covered within the protection scope of the application.

Claims

1. An intelligent safety power supply circuit, characterized by, The application relates to a smart safe power supply circuit, which comprises the following parts: at least one power supply circuit; a relay connected in series to the power supply circuit, used for controlling the on-off of the power supply circuit; a control module electrically connected to the relay, used for controlling the opening and closing of the relay to control the on-off of the power supply circuit; a human body sensing module electrically connected to the control module, used for sensing whether there is a human body near the socket; a plug insertion detection module electrically connected to the control module, used for detecting whether a plug is inserted into the socket; an electric appliance switch opening detection module electrically connected to the control module, used for detecting whether the electric appliance switch is opened; a power module electrically connected to the control module, the human body sensing module, the plug insertion detection module and the electric appliance switch opening detection module, used for power supply; wherein when the human body sensing module, the plug insertion detection module and the electric appliance switch opening detection module all output high level, the control module controls the relay to be closed to make the power supply circuit be powered on.

2. The intelligent safety power supply circuit according to claim 1, wherein, The application further comprises a current detection module electrically connected to the control module, which is used for detecting the current of the power supply circuit.

3. The intelligent safety power supply circuit according to claim 1, wherein, The application further comprises a voltage detection module electrically connected to the control module, which is used for detecting the voltage of the power supply circuit.

4. The intelligent safety power supply circuit according to claim 1, wherein, The human body sensing module is a radar sensing sensor.

5. An intelligent safety power supply socket, characterized in that, The application further comprises a socket body and the smart safe power supply circuit according to any one of claims 1 to 4.

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