Intelligent control protection power-off socket

Abstract

The utility model discloses an intelligent control protection power-off socket. The circuit comprises a fuse F1, a silicon controlled rectifier Q2 and other components, and the AC commercial power is triggered and started by a key K2 after being accessed. The socket has complete functions, can be automatically powered off when a battery is fully charged, and is controlled by a single chip microcomputer U1 through cooperation of a rectifier, an optocoupler and other elements according to load current changes; automatic switching of different powers is realized through the action of the socket jack voltage, a resistor, a capacitor and a silicon controlled rectifier Q3; and the functions of single-key startup and shutdown, long-press comprehensive protection and the like are also realized. A single-chip microcomputer U1 is used as a core, a multipath timing unit is controlled by an internal program, a core circuit for realizing self-adaptive voltage stabilization regulation and signal feedback is constructed based on a load loop voltage of a socket jack, micro current can be accurately monitored, the advantages in fault protection, power management and control convenience are outstanding, the power utilization safety and efficiency are effectively improved, and the safety and reliability of a power supply are improved. The socket overcomes the defects of a conventional socket, and is highly innovative and practical.

Description

TECHNICAL FIELD

[0001] The utility model relates to intelligent power-off socket technical field, specifically is a kind of intelligent control anti-throw power-off socket. BACKGROUND

[0002] In the current market, the charging protection equipment such as full charge automatic power-off socket is generally limited in function. It usually only has a single full charge automatic power-off function, and it is difficult to cope with complex situations in actual application scenarios. The defects of the prior art are significant, the application scenarios are limited, and there is a lack of automatic corresponding adjustment matching function. For example, when the power-off socket of the electric vehicle is connected with a low-power device, it cannot accurately identify the slight current change, so that the device cannot operate normally. In addition, there is a lack of single-key on-off and long-press comprehensive protection function, which is difficult to meet the needs of users in safe use and diversified functions. UTILITY MODEL CONTENTS

[0003] The utility model aims at providing an intelligent control anti-throw power-off socket to solve the problems in the background art and overcome the shortcomings of the prior art.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0005] The application discloses a kind of intelligence control anti-throwing-off socket, including fuse F1, pressure resistance R24, thyristor Q2, optocoupler U2, rectifier D4, rectifier D1, relay K1, single-chip microcomputer U1, button K2, power indicator LED1, current indicator LED2, temperature control switch TCW1, thermistor R8, based on socket socket load loop voltage is built to realize the core circuit of adaptive voltage regulation and control and signal feedback, one end of the button K2 is connected with one end of resistance R1, the other end of resistance R1 is connected with the negative electrode of diode D5, the positive electrode of diode D5 is connected with alternating current L, one end of pressure resistance R24 and the pin 2 of relay K1, one end of the other end of button K2 is connected with resistance R15 and the positive electrode of diode D6, the negative electrode of diode D6 is connected with the pin 1 of rectifier D1, one end of capacitor C2, one end of resistance R4, the negative electrode of diode D2 and the pin 3 of relay K1, the other end of resistance R4 is connected with one end of resistance R6, the negative electrode of voltage stabilizing diode D3, one end of capacitor C3, one end of capacitor C4, one end of resistance R7, the pin 2VCC of single-chip microcomputer U1, one end of resistance R9 and one end of resistance R10, the other end of resistance R9 is connected with the pin 5 of single-chip microcomputer U1 and one end of thermistor R8, the other end of resistance R10 is connected with the positive electrode of current indicator LED2, the negative electrode of current indicator LED2 is connected with the pin 7 of single-chip microcomputer, the other end of resistance R15 is connected with one end of capacitor C11, one end of resistance R26 and the base of triode Q4, the collector of triode Q4 is connected with the pin 6 of single-chip microcomputer U1, the positive electrode of diode D2 is connected with the pin 4 of relay K1 and the collector of triode Q1, the base of triode Q1 is connected with one end of resistance R5 and one end of resistance R25, the other end of resistance R5 is connected with the pin 8 of single-chip microcomputer U1, the other end of resistance R6 is connected with the positive electrode of power indicator LED1, the other end of resistance R7 is connected with one end of capacitor C5, the pin 4 of optocoupler U4 and the pin 3 of single-chip microcomputer U1, the negative electrode of power indicator LED1 is connected with the other end of resistance R25, the pin 2 of rectifier D1, the other end of capacitor C2, the positive electrode of voltage stabilizing diode D3, the other end of capacitor C3, the other end of capacitor C4, the pin 3 of optocoupler U4, the other end of capacitor C5, the pin 4 of single-chip microcomputer U1, the other end of thermistor R8, the other end of capacitor C11, the other end of resistance R26, the emitter of triode Q4, the emitter of triode Q1 and ground terminal GND, the pin 1 of relay K1 is connected with the pin 1 of socket socket, one end of resistance R2 and one end of capacitor C1, the other end of resistance R2 is connected with one end of resistance R3, the other end of resistance R3 is connected with the other end of capacitor C1 and the pin 4 of rectifier D1, the pin 2 of socket socket is connected with one end of capacitor C6, one end of temperature control switch TCW1, the pin T1 of thyristor Q2 and the pin 3 of rectifier D4,The pin 4 of the rectifier D4 is connected with one end of the resistance R11, the pin 6 of the photocoupler U2, the pin T2 of the thyristor Q2, the pin 3 of the rectifier D1, the other end of the temperature control switch TCW1, the other end of the voltage-dependent resistor R24 and one end of the fuse F1, the other end of the fuse F1 is connected with the alternating current N, the other end of the resistance R11 is connected with the other end of the capacitor C6, the pin G of the thyristor Q2 is connected with one end of the resistance R12, the other end of the resistance R12 is connected with the pin 4 of the photocoupler U2, the pin 1 of the rectifier D4 is connected with one end of the capacitor C7, one end of the capacitor C8, one end of the resistance R14, one end of the resistance R17, one end of the resistance R16, one end of the resistance R18, one end of the resistance R19, one end of the resistance R21 and one end of the resistance R22, the other end of the resistance R14 is connected with one end of the resistance R13, one end of the capacitor C9 and the pin 1 of the 431 voltage regulator U3, the other end of the capacitor C9 is connected with the pin 2 of the 431 voltage regulator U3, the other end of the resistance R17, the pin 3 of the photocoupler U2 and the pin 2 of the photocoupler U2, the pin 1 of the photocoupler U2 is connected with the other end of the resistance R16, the other end of the resistance R19 is connected with the pin A of the thyristor Q3, the other end of the resistance R21 is connected with one end of the resistance R20, one end of the capacitor C10, one end of the capacitor C12 and the pin G of the thyristor Q3, the other end of the resistance R22 is connected with one end of the resistance R23 and the pin 1 of the photocoupler U4, the pin 2 of the photocoupler U4 is connected with the other end of the resistance R23, the other end of the resistance R18, the pin K of the thyristor Q3, the other end of the capacitor C12, the other end of the capacitor C10, the other end of the resistance R20, the other end of the resistance R13, the pin 3 of the 431 voltage regulator U3, the other end of the capacitor C7, the other end of the capacitor C8, the pin 2 of the rectifier D4 and the ground terminal VSS; the core circuit is connected by elements to realize different power automatic switching function, single key on-off and long press comprehensive protection function, no-load protection function, charger or battery fault protection function, abnormal fault charger non-turning light protection function, overload and overheating protection function of different circuit structure, lightning protection and overload protection function and battery full charge automatic power-off function, the power indicator LED1 and the current indicator LED2 for indicating the current state, and the socket socket connected with the pin of the relay K1.

[0006] As a further technical scheme of the present application: the battery full automatic power-off function, when the battery is fully charged, the socket outlet load current decreases, the voltage of the socket outlet returning to the rectifier D4 decreases, the output voltage of the rectifier D4 decreases, and after being pulled down by the resistor R18, the voltage of the pin 1 of the optocoupler U4 is insufficient to light the internal light-emitting diode, the voltage of the pin 3 of the single-chip microcomputer U1 cannot be pulled down, the first path timing unit in the single-chip microcomputer U1 starts timing, at the same time, the pin 7 of the single-chip microcomputer U1 outputs a low level to light the current indicator lamp LED2, and after timing, the pin 8 of the single-chip microcomputer U1 outputs a low level to make the transistor Q1 cut off, and the relay K1 is disconnected, and the circuit is powered off, and the voltage of the socket outlet load is disconnected at the same time.

[0007] As a further technical scheme of the present application: the different power automatic switching function, when the socket outlet is connected to a small power device, the voltage cannot trigger the silicon controlled rectifier Q3 to conduct after being pulled down by the resistor R18; when the socket outlet is connected to a large power device, the voltage is charged to the capacitor C10 through the resistor R21 after being pulled down by the resistor R18, the charging voltage reaches the triggering condition, the silicon controlled rectifier Q3 conducts, the voltage is passed through the resistor R19 to the ground terminal VSS through the silicon controlled rectifier Q3, the load is pulled down to reduce the voltage, and the voltage of the pin 1 of the optocoupler U4 is insufficient to light the internal light-emitting diode of the optocoupler U4 after being pulled down by the resistor R22 after the battery is fully charged, and the voltage of the pin 3 of the single-chip microcomputer U1 cannot be pulled down; the different power automatic switching function circuit comprises the resistor R21, the resistor R20, the capacitor C10, the capacitor C12, the resistor R19 and the silicon controlled rectifier Q3, and there is at least one set of the different power automatic switching function circuit, so that the different power automatic switching function and subsequent control logic are realized.

[0008] As a further technical scheme of the present application: the single key on-off and long press comprehensive protection function, when the button K2 is pressed to start, the voltage is divided by the resistor R15 and the resistor R26 and filtered by the capacitor C11, then the voltage drives the transistor Q4 to conduct and pull down the voltage of the pin 6 of the single-chip microcomputer U1, short pressing keeps the pin 8 of the single-chip microcomputer U1 at a high level, long pressing makes the high level of the pin 8 of the single-chip microcomputer U1 turn to a low level, and pressing the button K2 again after starting pulls down the voltage of the pin 6 of the single-chip microcomputer U1, so that the pin 8 of the single-chip microcomputer U1 immediately outputs a low level to make the transistor Q1 cut off, the relay K1 is disconnected, the circuit is powered off, and the voltage of the socket outlet load is disconnected at the same time.

[0009] As a further technical solution of the present application: the no-load protection function, when the socket pin 2 has no return voltage or weak voltage into the rectifier D4 pin 3, the light emitting diode inside the optocoupler U4 cannot be lit, and the voltage of the pin 3 of the single-chip microcomputer U1 cannot be pulled down. The fourth timing unit inside the single-chip microcomputer U1 starts timing, and the pin 7 of the single-chip microcomputer U1 outputs low level to light the current indicator lamp LED2. After timing, the pin 8 of the single-chip microcomputer U1 outputs low level to make the transistor Q1 cut off, and the relay K1 is disconnected, the circuit is powered off, and the voltage of the socket load is disconnected.

[0010] As a further technical solution of the present application: the charger or battery fault protection function, press the button K2, during the charging process, the socket load current is high and low, the voltage entering the pin 1 of the optocoupler U4 is also high and low, resulting in the voltage of the pin 3 of the single-chip microcomputer U1 being high and low, and the output level of the pin 7 of the single-chip microcomputer U1 being high and low, causing the current indicator lamp LED2 to be on and off. At this time, when the voltage of the pin 3 of the single-chip microcomputer U1 is high, the timing of the first timing unit inside the single-chip microcomputer U1 will automatically clear zero, and after the time, the timing clear zero is released. The first timing unit inside the single-chip microcomputer U1 starts timing, (the voltage of the pin 3 of the single-chip microcomputer U1 is high to enter timing, and the voltage of the pin 3 of the single-chip microcomputer U1 is low to pause timing), after timing, the pin 8 of the single-chip microcomputer U1 outputs low level to make the transistor Q1 cut off, and the relay K1 is disconnected, the circuit is powered off, and the voltage of the socket load is disconnected.

[0011] As a further technical solution of the present application: the abnormal fault charger non-turning light protection function, press the button K2, during the charging process, the second timing unit inside the single-chip microcomputer U1 starts timing, after timing, the pin 8 of the single-chip microcomputer U1 outputs low level to make the transistor Q1 cut off, and the relay K1 is disconnected, the circuit is powered off, and the voltage of the socket load is disconnected.

[0012] As a further technical solution of the present invention: the overload and overheat protection function of the different circuit structures is implemented in a circuit structure including a temperature control switch TCW1. When the thyristor Q2 overheats and triggers the temperature control switch TCW1 to conduct, the thyristor Q2 is turned off, and current flows through the temperature control switch TCW1, causing the output of the rectifier D4 to decrease, thereby increasing the voltage at pin 3 of the microcontroller U1. At the same time, the resistance of the thermistor R8 decreases due to overheating, pulling down the voltage at pin 5 of the microcontroller U1. At this time, because the load of the non-socket port is small, the voltage of the single-chip microcontroller U1 is reduced. When the voltage at pin 3 of microcontroller U1 increases, the internal program of microcontroller U1, according to the corresponding instruction, causes no current to flow through the thyristor Q2, thus cooling it down. When the temperature drops to the point where the temperature control switch TCW1 is turned off, the thyristor Q2 resumes normal operation, the output voltage of rectifier D4 rises again, pulling down the voltage at pin 3 of microcontroller U1. The resistance of thermistor R8 increases, making it unable to pull down the voltage at pin 5 of microcontroller U1. As the charging current decreases, the temperature of thyristor Q2 will not exceed the limit, and the temperature control switch TCW1 will not be triggered to conduct, thus continuing to charge.

[0013] As a further technical solution of the present invention: the overload and overheat protection function of the different circuit structures is implemented by canceling the temperature control switch TCW1 and using the circuit structure of the thermistor R8. When the socket is overloaded or other reasons cause the temperature of the thyristor Q2 to be too high and exceed the safe value, the resistance of the thermistor R8 decreases and pulls down the voltage of pin 5 of the microcontroller U1. Then, the corresponding program preset inside the microcontroller U1 is started, and pin 8 of the microcontroller U1 outputs a low level, which turns off the transistor Q1, and the relay K1 is disconnected. The circuit is de-energized, and the voltage of the socket load is disconnected at the same time.

[0014] As a further technical solution of the present invention: the lightning protection and overload protection function, when the mains power is normal, the varistor R24 ​​is cut off. When lightning or other events cause overvoltage and exceed the breakdown voltage of the varistor R24, the varistor R24 ​​is turned on or the socket is overloaded, causing the current through the fuse F1 to increase greatly. After exceeding the rated fusing current, the fuse F1 melts and cuts off the power supply.

[0015] Compared with existing technologies, the beneficial effects of this utility model are:

[0016] This utility model presents a smart control and protective power-off socket with significant advantages. A core circuit based on the load circuit voltage of the socket outlet is constructed to achieve adaptive voltage regulation and signal feedback. It features highly integrated functions, comprehensive protection against multiple faults, precise adaptation to different power appliances, wide applicability, and accurate monitoring of minute currents. In terms of power management, thanks to its unique circuitry and advanced strategies, with a microcontroller U1 at its core, the U1 presets and controls the duration of multiple timing units through its internal program, enabling convenient one-button power on / off and long-press emergency power-off, significantly improving power safety and ease of operation, giving users peace of mind regarding electricity use. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 The utility model discloses a kind of intelligent control anti-throwing-out socket circuit diagrams. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0019] In the description of the present application, it should be pointed out that the terms "upper", "lower", "inner", "outer", "top / bottom end" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first" and "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0020] In the description of the present application, it should be pointed out that, unless otherwise explicitly specified and limited, the terms "mounting", "provided with", "sleeved / connected", "connected" and the like should be broadly understood, for example, "connected" can be fixedly connected, can also be detachably connected, or integrally connected; can be mechanically connected, can also be electrically connected; can be directly connected, can also be indirectly connected through an intermediate medium; can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances. EMBODIMENT

[0021] Reference Figure 1, including fuse F1, voltage-dependent resistor R24, thyristor Q2, optocoupler U2, rectifier D4, rectifier D1, relay K1, single-chip microcomputer U1, button K2, power indicator LED1, current indicator LED2, temperature control switch TCW1, thermistor R8, based on the socket socket load circuit voltage to build up to achieve adaptive voltage regulation and signal feedback core circuit, one end of the button K2 is connected to one end of the resistor R1, the other end of the resistor R1 is connected to the negative electrode of the diode D5, the positive electrode of the diode D5 is connected to the AC L, one end of the voltage-dependent resistor R24 and the pin 2 of the relay K1, the other end of the button K2 is connected to one end of the resistor R15 and the positive electrode of the diode D6, the negative electrode of the diode D6 is connected to the pin 1 of the rectifier D1, one end of the capacitor C2, one end of the resistor R4, the negative electrode of the diode D2 and the pin 3 of the relay K1, the other end of the resistor R4 is connected to one end of the resistor R6, the negative electrode of the voltage stabilizing diode D3, one end of the capacitor C3, one end of the capacitor C4, one end of the resistor R7, the pin 2VCC of the single-chip microcomputer U1, one end of the resistor R9 and one end of the resistor R10, the other end of the resistor R9 is connected to the pin 5 of the single-chip microcomputer U1 and one end of the thermistor R8, the other end of the resistor R10 is connected to the positive electrode of the current indicator LED2, the negative electrode of the current indicator LED2 is connected to the pin 7 of the single-chip microcomputer, the other end of the resistor R15 is connected to one end of the capacitor C11, one end of the resistor R26 and the base of the triode Q4, the collector of the triode Q4 is connected to the pin 6 of the single-chip microcomputer U1, the positive electrode of the diode D2 is connected to the pin 4 of the relay K1 and the collector of the triode Q1, the base of the triode Q1 is connected to one end of the resistor R5 and one end of the resistor R25, the other end of the resistor R5 is connected to the pin 8 of the single-chip microcomputer U1, the other end of the resistor R6 is connected to the positive electrode of the power indicator LED1, the other end of the resistor R7 is connected to one end of the capacitor C5, the pin 4 of the optocoupler U4 and the pin 3 of the single-chip microcomputer U1, the negative electrode of the power indicator LED1 is connected to the other end of the resistor R25, the pin 2 of the rectifier D1, the other end of the capacitor C2, the positive electrode of the voltage stabilizing diode D3, the other end of the capacitor C3, the other end of the capacitor C4, the pin 3 of the optocoupler U4, the other end of the capacitor C5, the pin 4 of the single-chip microcomputer U1, the other end of the thermistor R8, the other end of the capacitor C11, the other end of the resistor R26, the emitter of the triode Q4, the emitter of the triode Q1 and the ground terminal GND, the pin 1 of the relay K1 is connected to the pin 1 of the socket socket, one end of the resistor R2 and one end of the capacitor C1, the other end of the resistor R2 is connected to one end of the resistor R3, the other end of the resistor R3 is connected to the other end of the capacitor C1 and the pin 4 of the rectifier D1, the pin 2 of the socket socket is connected to one end of the capacitor C6, one end of the temperature control switch TCW1, the pin T1 of the thyristor Q2 and the pin 3 of the rectifier D4,The pin 4 of the rectifier D4 is connected with one end of the resistance R11, the pin 6 of the photo-coupler U2, the pin T2 of the silicon controlled Q2, the pin 3 of the rectifier D1, the other end of the temperature control switch TCW1, the other end of the voltage-dependent resistor R24 and one end of the fuse F1, the other end of the fuse F1 is connected with the alternating current N, the other end of the resistance R11 is connected with the other end of the capacitor C6, the pin G of the silicon controlled Q2 is connected with one end of the resistance R12, the other end of the resistance R12 is connected with the pin 4 of the photo-coupler U2, the pin 1 of the rectifier D4 is connected with one end of the capacitor C7, one end of the capacitor C8, one end of the resistance R14, one end of the resistance R17, one end of the resistance R16, one end of the resistance R18, one end of the resistance R19, one end of the resistance R21 and one end of the resistance R22, the other end of the resistance R14 is connected with one end of the resistance R13, one end of the capacitor C9 and the pin 1 of the 431 voltage stabilizer U3, the other end of the capacitor C9 is connected with the pin 2 of the 431 voltage stabilizer U3, the other end of the resistance R17, the pin 3 of the photo-coupler U2 and the pin 2 of the photo-coupler U2, the pin 1 of the photo-coupler U2 is connected with the other end of the resistance R16, the other end of the resistance R19 is connected with the pin A of the silicon controlled Q3, the other end of the resistance R21 is connected with one end of the resistance R20, one end of the capacitor C10, one end of the capacitor C12 and the pin G of the silicon controlled Q3, the other end of the resistance R22 is connected with one end of the resistance R23 and the pin 1 of the photo-coupler U4, the pin 2 of the photo-coupler U4 is connected with the other end of the resistance R23, the other end of the resistance R18, the pin K of the silicon controlled Q3, the other end of the capacitor C12, the other end of the capacitor C10, the other end of the resistance R20, the other end of the resistance R13, the pin 3 of the 431 voltage stabilizer U3, the other end of the capacitor C7, the other end of the capacitor C8, the pin 2 of the rectifier D4 and the ground terminal VSS; the core circuit is connected by elements to realize different power automatic switching function, single key on-off and long press comprehensive protection function, no-load protection function, charger or battery fault protection function, abnormal fault charger non-turning light protection function, overload and overheating protection function of different circuit structure, lightning protection and overload protection function and battery full charge automatic power-off function, the power indicator LED1 and the current indicator LED2 for indicating the current state, and the socket socket connected with the pin of the relay K1.

[0022] The power indicator light LED1 is a light-emitting diode, and its on-off directly presents the power-on state; the current indicator light LED2 is also a light-emitting diode, and its on-off change can let the user know the load condition in real time. The optocoupler U4 can effectively isolate GND and VSS, prevent current from flowing, and build a core circuit for adaptive voltage regulation and signal feedback based on the socket load loop voltage. The core circuit is mainly composed of key elements such as thyristor Q2, optocoupler U2, 431 voltage regulator U3, rectifier D4, resistor R18, thyristor Q3, and optocoupler U4. In operation, the core circuit carries out a series of processing operations on the load loop voltage to achieve functions such as voltage regulation, and the optocoupler U4 transmits the processed signal to the single-chip microcomputer U1, which controls the time length of the multi-path timing unit through internal program preset and drives each function to be realized. Embodiment

[0023] On the basis of embodiment 1, the battery full-charge automatic power-off function, when the battery is fully charged, the socket load current decreases, the voltage of the socket returned to the rectifier D4 decreases, the output voltage of the rectifier D4 decreases, and after being pulled down by the resistor R18, the voltage of the pin 1 of the optocoupler U4 is insufficient to light the internal light-emitting diode, and the voltage of the pin 3 of the single-chip microcomputer U1 cannot be pulled down. The first path timing unit in the single-chip microcomputer U1 starts timing, and the pin 7 of the single-chip microcomputer U1 outputs a low level to light the current indicator light LED2. After timing, the pin 8 of the single-chip microcomputer U1 outputs a low level to make the transistor Q1 cut off, and the relay K1 is disconnected, and the circuit is powered off, and the voltage of the socket load is also disconnected.

[0024] The different power automatic switching function, when the socket is connected to a small power device, the voltage cannot trigger the thyristor Q3 to conduct after being pulled down by the resistor R18; when the socket is connected to a large power device, the voltage is charged to the capacitor C10 through the resistor R21 after being pulled down by the resistor R18, and when the charging voltage reaches the trigger condition, the thyristor Q3 conducts, so that the voltage is transmitted to the ground terminal VSS through the resistor R19 and the thyristor Q3, and the load voltage is pulled down. After the battery is fully charged, the voltage of the pin 1 of the optocoupler U4 through the resistor R22 is insufficient to light the internal light-emitting diode of the optocoupler U4, and the voltage of the pin 3 of the single-chip microcomputer U1 cannot be pulled down. The different power automatic switching function circuit is composed of resistor R21, resistor R20, capacitor C10, capacitor C12, resistor R19, and thyristor Q3. There is at least one set of different power automatic switching function circuit, so as to realize the different power automatic switching function and the subsequent control logic.

[0025] The single key switch and long press comprehensive protection function, press the key K2, the voltage is divided by resistance R15, resistance R26 and filtered by capacitor C11, then drive the triode Q4 to conduct and pull down the voltage of pin 6 of the single chip U1, short press keeps the pin 8 of the single chip U1 high level, long press makes the high level of the pin 8 of the single chip U1 low, and after starting, press the key K2 to pull down the voltage of the pin 6 of the single chip U1, make the pin 8 of the single chip U1 output low level to make the triode Q1 cut off, and the relay K1 is disconnected, the circuit is powered off, and the voltage of the socket outlet load is disconnected.

[0026] The no-load protection function, when there is no return voltage or weak voltage entering the pin 3 of the rectifier D4, the light emitting diode inside the optocoupler U4 cannot be lit, the voltage of the pin 3 of the single chip U1 cannot be pulled down, the fourth timing unit inside the single chip U1 starts timing, the pin 7 of the single chip U1 outputs low level to light the current indicator lamp LED2, after timing, the pin 8 of the single chip U1 outputs low level to make the triode Q1 cut off, the relay K1 is disconnected, the circuit is powered off, and the voltage of the socket outlet load is disconnected.

[0027] The charger or battery fault protection function, press the key K2, during the charging process, the voltage entering the pin 1 of the optocoupler U4 is high and low, which causes the voltage of the pin 3 of the single chip U1 to be high and low, and the output level of the pin 7 of the single chip U1 is also high and low, which makes the current indicator lamp LED2 light and dark, at this time, when the voltage of the pin 3 of the single chip U1 is high, the first timing unit inside the single chip U1 will automatically clear the timing, after the time, the timing is cleared, the second timing unit inside the single chip U1 starts timing, the voltage of the pin 3 of the single chip U1 is high and enters the timing, the voltage of the pin 3 of the single chip U1 is low and the timing is paused, after the timing, the pin 8 of the single chip U1 outputs low level to make the triode Q1 cut off, the relay K1 is disconnected, the circuit is powered off, and the voltage of the socket outlet load is disconnected.

[0028] The abnormal fault charger does not turn on the light protection function, press the key K2, during the charging process, the second timing unit inside the single chip U1 starts timing, after the timing, the pin 8 of the single chip U1 outputs low level to make the triode Q1 cut off, the relay K1 is disconnected, the circuit is powered off, and the voltage of the socket outlet load is disconnected.

[0029] The overload and overheat protection functions of the different circuit structures are implemented as follows: A circuit structure including a temperature control switch TCW1 is used. When the thyristor Q2 overheats, triggering the temperature control switch TCW1 to conduct, the thyristor Q2 is turned off, and current flows through the temperature control switch TCW1, causing the output of the rectifier D4 to decrease. This, in turn, increases the voltage at pin 3 of the microcontroller U1. Simultaneously, the thermistor R8, due to overheating, decreases its resistance, pulling down the voltage at pin 5 of the microcontroller U1. At this time, because the load on the non-socket port is small, the voltage at pin 3 of the microcontroller U1... As the voltage increases, the internal program of the microcontroller U1, according to the corresponding instructions, causes the thyristor Q2 to cool down by eliminating current flow. When the temperature drops to the point where the temperature control switch TCW1 is turned off, the thyristor Q2 resumes normal operation, the output voltage of the rectifier D4 rises again, pulling down the voltage at pin 3 of the microcontroller U1. The resistance of the thermistor R8 increases, making it unable to pull down the voltage at pin 5 of the microcontroller U1. As the charging current decreases, the temperature of the thyristor Q2 will not exceed the limit, thus preventing the temperature control switch TCW1 from being triggered and allowing charging to continue.

[0030] The overload and overheat protection functions of the different circuit structures are implemented by canceling the temperature control switch TCW1 and using the circuit structure of the thermistor R8. When the socket is overloaded or other reasons cause the temperature of the thyristor Q2 to be too high and exceed the safe value, the resistance of the thermistor R8 decreases and pulls down the voltage of pin 5 of the microcontroller U1. Then, the corresponding program preset inside the microcontroller U1 is started, and pin 8 of the microcontroller U1 outputs a low level, which turns off the transistor Q1, and the relay K1 is disconnected. The circuit is de-energized, and the voltage of the socket load is disconnected at the same time.

[0031] The lightning protection and overload protection functions are as follows: when the mains power is normal, the varistor R24 ​​is cut off; when lightning or other events cause overvoltage and exceed the breakdown voltage of the varistor R24, the varistor R24 ​​conducts or the socket is overloaded, causing the current through the fuse F1 to increase significantly. After exceeding the rated fusing current, the fuse F1 melts and cuts off the power supply.

[0032] Circuit startup and initialization process:

[0033] Startup status:

[0034] AC N through the fuse F1 to the pressure resistance R24, thyristor Q2, optocoupler U2, rectifier D4 and rectifier D1; AC L to the pin 2 of the relay K1, through the diode D5 into the resistor R1 to the button K2, press the button K2, the voltage through the diode D6 to the pin 1 of the rectifier D1, then, the voltage is filtered by the capacitor C2 and enters the relay K1, and then is stabilized by the resistor R4 and the stabilizing diode D3, and then enters the single-chip microcomputer U1 and the resistor R6, and the power indicator LED1 is lit, at this time, the pin 8 of the single-chip microcomputer U1 outputs a high level, which drives the triode Q1 to be turned on through the resistor R5, so as to make the relay K1 be attracted, and then the pin 1 and the pin 2 of the relay K1 are turned on, and the voltage output from the pin 1 of the relay K1 is supplied to the rectifier D1 after being reduced by the resistor R2, the resistor R3 and the capacitor C1, at this time, the button K2 is released, the circuit is still powered, and the socket is also powered.

[0035] Voltage stability and signal transmission during operation:

[0036] When the socket is connected to the load for charging, AC L flows back to the rectifier D4 through the load, so that the output voltage of the rectifier D4 is increased, and the voltage is filtered by the capacitor C7, and then one way of the voltage is supplied to the pin 1 of the optocoupler U2 through the resistor R16, and the other way of the voltage is divided by the resistor R14 and the resistor R13, and then is supplied to the pin 1 of the 431 stabilizing tube U3, at this time, the voltage is higher than the reference voltage inside the 431 stabilizing tube U3, so that the pin 2 and the pin 3 of the 431 stabilizing tube U3 are turned on to the ground terminal VSS, the light-emitting diode inside the optocoupler U2 is lit, the pin 4 and the pin 6 of the optocoupler U2 are turned on, the pin T2 and the pin T1 of the thyristor Q2 are turned on, AC N flows into the pin 2 of the socket, the voltage of the load back to the rectifier D4 is reduced, the voltage of the pin 1 of the 431 stabilizing tube U3 is lower than the reference voltage inside the 431 stabilizing tube U3, the pin 2 and the pin 3 of the 431 stabilizing tube U3 are cut off, the optocoupler U2 cannot drive the thyristor Q2 to be turned on, the loop voltage is increased to flow into the rectifier D4, and the cycle is repeated, so that the rectifier D4 outputs a stable voltage, the voltage is pulled down by the resistor R18, and then is supplied to the pin 1 of the optocoupler U4 through the resistor R22, the light-emitting diode inside the optocoupler U4 is lit, the phototriode inside the optocoupler U4 is turned on, the voltage of the pin 3 of the single-chip microcomputer U1 is pulled down, and the charging state is maintained.

[0037] Detailed operation process of each function:

[0038] In the process of battery charging (including the mobile phone has the function of optimizing battery charging), when the voltage of pin 3 of single-chip microcomputer U1 cannot be pulled down, the first timing unit inside single-chip microcomputer U1 is turned off, when the voltage of pin 3 of single-chip microcomputer U1 is pulled down, the first timing unit inside single-chip microcomputer U1 is turned on, when the voltage of pin 3 of single-chip microcomputer U1 cannot be pulled down again, the first timing unit inside single-chip microcomputer U1 starts timing.

[0039] Automatic power-off protection function after the battery is fully charged:

[0040] When the battery is fully charged, the load current of the socket outlet decreases, causing the voltage returning to the rectifier D4 to decrease, the output voltage of the rectifier D4 decreases, and after being pulled down by the resistance R18 in the voltage stabilizing circuit, the voltage of pin 1 of optocoupler U4 is insufficient to light the internal light-emitting diode of optocoupler U4, the internal photosensitive triode of optocoupler U4 cannot be turned on, and thus the voltage of pin 3 of single-chip microcomputer U1 cannot be pulled down, at this time the first timing unit inside single-chip microcomputer U1 starts timing (the time length state is controlled by the internal program of single-chip microcomputer U1, and the appropriate time length after the battery is fully charged for continuing compensation charging is preset), the battery is still charged, and at the same time the low-level output of pin 7 of single-chip microcomputer U1 lights the current indicator lamp LED2, which facilitates the observation of the load current change state, when the timing time is up, the low-level output of pin 8 of single-chip microcomputer U1 makes the triode Q1 cut off, the relay K1 is turned off, the circuit is powered off, and at the same time the voltage of the load of the socket outlet is turned off, the charging is completed, and the purpose of automatic power-off protection after the battery is fully charged is achieved.

[0041] Mobile phone has the function of optimizing battery charging:

[0042] In the process of optimizing battery charging of the mobile phone, when the voltage of pin 3 of single-chip microcomputer U1 cannot be pulled down, the voltage of pin 3 of single-chip microcomputer U1 is not pulled down within the preset time (judging that the mobile phone has the function of optimizing battery charging), at this time the first timing unit inside single-chip microcomputer U1 is paused, and the voltage of pin 3 of single-chip microcomputer U1 is pulled down or even continuously pulled down for a short time, at this time the first timing unit inside single-chip microcomputer U1 is started, when the voltage of pin 3 of single-chip microcomputer U1 cannot be pulled down, the first timing unit inside single-chip microcomputer U1 starts timing (the time length state is controlled by the internal program of single-chip microcomputer U1, and the appropriate time length after the battery is fully charged for continuing compensation charging is preset), the battery is still charged, and at the same time the low-level output of pin 7 of single-chip microcomputer U1 lights the current indicator lamp LED2, which facilitates the observation of the load current change state, when the timing time is up, the low-level output of pin 8 of single-chip microcomputer U1 makes the triode Q1 cut off, the relay K1 is turned off, the circuit is powered off, and at the same time the voltage of the load of the socket outlet is turned off, the charging is completed, and the purpose of automatic power-off protection after the battery is fully charged is achieved.

[0043] Different power automatic switching function:

[0044] When the socket outlet is connected to a small power, the voltage of the socket outlet loop is pulled down through the resistance R18, and the voltage cannot trigger the silicon controlled rectifier Q3 to conduct. After the battery is fully charged, the voltage through the resistance R22 to the pin 1 of the optocoupler U4 is not enough to light the internal light emitting diode of the optocoupler U4, and the voltage of the pin 3 of the single-chip microcomputer U1 cannot be pulled down. When the socket outlet is connected to a large power, the voltage of the socket outlet loop is pulled down through the resistance R18, and the voltage is charged to the capacitor C10 through the resistance R21. The charging delay time prevents the silicon controlled rectifier Q3 from being triggered to malfunction. When the charging voltage reaches the trigger voltage of the silicon controlled rectifier Q3 to conduct, the pin A of the silicon controlled rectifier Q3 and the pin K are conducted. At this time, the voltage is pulled down through the resistance R19 through the silicon controlled rectifier Q3 to the ground terminal VSS, and the voltage is also pulled down by the heavy load. Similarly, after the battery is fully charged, the voltage through the resistance R22 to the pin 1 of the optocoupler U4 is not enough to light the internal light emitting diode of the optocoupler U4, and the voltage of the pin 3 of the single-chip microcomputer U1 cannot be pulled down. The first timing unit in the single-chip microcomputer U1 starts timing (the time length state is controlled by the internal program of the single-chip microcomputer U1, and the time length after the battery is fully charged is preset). When the timing time is up, the single-chip microcomputer U1 outputs a low level at the pin 8, the transistor Q1 is cut off, the relay K1 is turned off, the circuit is powered off, and the voltage of the socket outlet load is also turned off, realizing automatic switching of different powers and automatic power-off protection of the fully charged battery. In addition, the automatic switching circuit of different powers is composed of the resistance R21, the resistance R20, the capacitor C10, the capacitor C12, the resistance R19 and the silicon controlled rectifier Q3. The automatic switching circuit of different powers has at least one group.

[0045] Single-key on-off and long-press comprehensive protection function:

[0046] When the key K2 is pressed after starting, the circuit starts to run, and the voltage is divided by the resistance R15 and the resistance R26 and filtered by the capacitor C11, driving the transistor Q4 to conduct and pulling down the voltage of the pin 6 of the single-chip microcomputer U1. At this time, the fifth timing unit in the single-chip microcomputer U1 starts timing (the time length state is controlled by the internal program of the single-chip microcomputer U1, and the appropriate key time length is preset). When the key K2 is pressed for a short time, the voltage of the pin 6 of the single-chip microcomputer U1 is pulled down, which does not affect the starting process. When the key K2 is pressed for a long time, the voltage of the pin 6 of the single-chip microcomputer U1 is pulled down, and the high level output by the pin 8 of the single-chip microcomputer U1 becomes a low level. If the machine has been started, and it is necessary to turn off or in an emergency, press the key K2, the circuit starts to run, the voltage of the pin 6 of the single-chip microcomputer U1 is pulled down, and the pin 8 of the single-chip microcomputer U1 immediately outputs a low level, making the transistor Q1 cut off, the relay K1 is turned off, the circuit is powered off, and the voltage of the socket outlet load is also turned off, realizing the purpose of single-key on-off and long-press comprehensive protection.

[0047] No-load protection function:

[0048] When the key K2 is pressed to start, the pin 2 of the socket is no voltage or weak voltage into the rectifier D4 pin 3, can not light the light emitting diode inside the optocoupler U4, the optocoupler U4 inside the photosensitive triode has no conduction, can not pull down the voltage of the pin 3 of the single-chip microcomputer U1, at this time, the fourth path timing unit inside the single-chip microcomputer U1 starts timing, (the time state is controlled by the internal program of the single-chip microcomputer U1, and the appropriate time of no-load is preset) at the same time, the pin 7 of the single-chip microcomputer U1 outputs low level to light the current indicator lamp LED2, when the timing time is up, the pin 8 of the single-chip microcomputer U1 outputs low level, so that the triode Q1 is cut off, and the relay K1 is disconnected, the circuit is powered off, and the voltage of the socket is disconnected, realizing the purpose of no-load protection.

[0049] Charger or battery fault protection function:

[0050] Press the key K2, during the charging process, the voltage entering the pin 1 of the optocoupler U4 is also high and low, resulting in the voltage of the pin 3 of the single-chip microcomputer U1 being high and low, at the same time, the output level of the pin 7 of the single-chip microcomputer U1 is also high and low, making the current indicator lamp LED2 bright and dim, at this time, when the voltage of the pin 3 of the single-chip microcomputer U1 is high, the timing of the first path timing unit inside the single-chip microcomputer U1 will automatically clear zero, (the first stage charging time of the battery is kept to ensure that it is not mistaken for a fault, the time state is controlled by the internal program of the single-chip microcomputer U1, and the appropriate first stage charging time of the battery is preset), after the time is up, the timing clear zero is released, the first path timing unit inside the single-chip microcomputer U1 starts timing, the voltage of the pin 3 of the single-chip microcomputer U1 is high to enter the timing, the voltage of the pin 3 of the single-chip microcomputer U1 is low to pause the timing, after the timing, the pin 8 of the single-chip microcomputer U1 outputs low level, so that the triode Q1 is cut off, and the relay K1 is disconnected, the circuit is powered off, and the voltage of the socket load is disconnected, realizing the purpose of charger or battery fault protection.

[0051] Abnormal fault charger does not turn on the light protection function:

[0052] Press the key K2, during the charging process, the second path timing unit inside the single-chip microcomputer U1 starts timing (the time state is controlled by the internal program of the single-chip microcomputer U1, and the appropriate time of the charger not turning on the light is preset), after the timing, the pin 8 of the single-chip microcomputer U1 outputs low level, so that the triode Q1 is cut off, and the relay K1 is disconnected, the circuit is powered off, and the voltage of the socket load is disconnected, realizing the purpose of abnormal fault charger not turning on the light automatic power-off protection.

[0053] Overload and overheating protection function of different circuit structures:

[0054] The circuit structure comprising the temperature control switch TCW1, when the thyristor Q2 triggers the temperature control switch TCW1 to conduct after over-temperature, the thyristor Q2 is cut off, the current passes through the temperature control switch TCW1, the output of the rectifier D4 is reduced, and then the voltage of the pin 3 of the single-chip microcomputer U1 is raised, and the resistance of the thermistor R8 is reduced to lower the voltage of the pin 5 of the single-chip microcomputer U1 due to over-temperature, at this time, the voltage of the pin 3 of the single-chip microcomputer U1 is raised due to the small load of the non-socket, the internal program of the single-chip microcomputer U1 makes the thyristor Q2 have no current passing through to realize cooling, when the temperature of the thyristor Q2 is reduced to the off time of the temperature control switch TCW1, the thyristor Q2 resumes normal work, the output voltage of the rectifier D4 is raised, the voltage of the pin 3 of the single-chip microcomputer U1 is lowered, the resistance of the thermistor R8 is increased, the voltage of the pin 5 of the single-chip microcomputer U1 cannot be lowered, and the thyristor Q2 cannot be triggered to conduct due to the over-temperature, thereby the charging is continuously carried out, and the purpose of over-temperature protection of the thyristor Q2 is realized.

[0055] Overload and overheat protection functions of different circuit structures:

[0056] The circuit structure without the temperature control switch TCW1 and with the thermistor R8, when the temperature of the thyristor Q2 is over-high due to overload of the socket or other reasons, the resistance of the thermistor R8 is reduced to lower the voltage of the pin 5 of the single-chip microcomputer U1, the internal preset corresponding program of the single-chip microcomputer U1 is started, the output of the pin 8 of the single-chip microcomputer U1 is low, the triode Q1 is cut off, the relay K1 is disconnected, the circuit is powered off, and the voltage of the socket load is disconnected, and the purpose of overload and overheat protection is realized.

[0057] Lightning protection and overload protection functions:

[0058] When the mains is normal, the voltage of the pin 3 of the single-chip microcomputer U1 is raised, the resistance of the thermistor R8 is reduced to lower the voltage of the pin 5 of the single-chip microcomputer U1, the internal preset corresponding program of the single-chip microcomputer U1 is started, the output of the pin 8 of the single-chip microcomputer U1 is low, the triode Q1 is cut off, the relay K1 is disconnected, the circuit is powered off, and the voltage of the socket load is disconnected, and the purpose of overload and overheat protection is realized.

[0059] It is apparent for those skilled in the art that the present application is not limited to the details of the foregoing exemplary embodiments, and the present application can be realized in other concrete forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be considered in all respects as illustrative and not restrictive, the scope of the present application is defined by the appended claims rather than the foregoing description, and it is intended to embrace all changes and modifications that fall within the meaning and scope of equivalents of the claims. Any reference signs in the claims should not be construed as limiting the claims to which the reference signs belong.

[0060] Furthermore, it should be understood that although the specification is described in terms of embodiments, not every embodiment includes every feature described. The specification can include implicit combinations of explicitly mentioned features and / or explicit combinations of implicitely mentioned features. Each embodiment depends on the explicit combinations of features and / or the implicit combinations of features made specifically within that embodiment, and each such embodiment can be combined with every other such embodiment to create further embodiments.

Claims

1. A kind of intelligence control anti-throws off power socket, including fuse F1, pressure resistance R24, thyristor Q2, photocoupler U2, rectifier D4, rectifier D1, relay K1, single-chip microcomputer U1, button K2, power indicator light LED1, current indicator light LED2, temperature control switch TCW1, thermistor R8, based on the core circuit of realization adaptive voltage regulation and control and signal feedback that the load loop voltage of socket socket is built, characterized in that, One end of the key K2 is connected to one end of the resistance R1, the other end of the resistance R1 is connected to the negative electrode of the diode D5, the positive electrode of the diode D5 is connected to the AC L, one end of the pressure resistance R24 and the pin 2 of the relay K1, the other end of the key K2 is connected to one end of the resistance R15 and the positive electrode of the diode D6, the negative electrode of the diode D6 is connected to the pin 1 of the rectifier D1, one end of the capacitor C2, one end of the resistance R4, the negative electrode of the diode D2 and the pin 3 of the relay K1, the other end of the resistance R4 is connected to one end of the resistance R6, the negative electrode of the voltage stabilizing diode D3, one end of the capacitor C3, one end of the capacitor C4, one end of the resistance R7, the pin 2VCC of the single-chip microcomputer U1, one end of the resistance R9 and one end of the resistance R10, the other end of the resistance R9 is connected to the pin 5 of the single-chip microcomputer U1 and one end of the thermistor R8, the other end of the resistance R10 is connected to the positive electrode of the current indicating lamp LED2, the negative electrode of the current indicating lamp LED2 is connected to the pin 7 of the single-chip microcomputer, the other end of the resistance R15 is connected to one end of the capacitor C11, one end of the resistance R26 and the base of the triode Q4, the collector of the triode Q4 is connected to the pin 6 of the single-chip microcomputer U1, the positive electrode of the diode D2 is connected to the pin 4 of the relay K1 and the collector of the triode Q1, the base of the triode Q1 is connected to one end of the resistance R5 and one end of the resistance R25, the other end of the resistance R5 is connected to the pin 8 of the single-chip microcomputer U1, the other end of the resistance R6 is connected to the positive electrode of the power indicating lamp LED1, the other end of the resistance R7 is connected to one end of the capacitor C5, the pin 4 of the photoelectric coupler U4 and the pin 3 of the single-chip microcomputer U1, the negative electrode of the power indicating lamp LED1 is connected to the other end of the resistance R25, the pin 2 of the rectifier D1, the other end of the capacitor C2, the positive electrode of the voltage stabilizing diode D3, the other end of the capacitor C3, the other end of the capacitor C4, the pin 3 of the photoelectric coupler U4, the other end of the capacitor C5, the pin 4 of the single-chip microcomputer U1, the other end of the thermistor R8, the other end of the capacitor C11, the other end of the resistance R26, the emitter of the triode Q4, the emitter of the triode Q1 and the ground terminal GND, the pin 1 of the relay K1 is connected to the pin 1 of the socket, one end of the resistance R2 and one end of the capacitor C1, the other end of the resistance R2 is connected to one end of the resistance R3, the other end of the resistance R3 is connected to the other end of the capacitor C1 and the pin 4 of the rectifier D1, the pin 2 of the socket is connected to one end of the capacitor C6, one end of the temperature control switch TCW1, the pin T1 of the thyristor Q2 and the pin 3 of the rectifier D4, the pin 4 of the rectifier D4 is connected to one end of the resistance R11, the pin 6 of the photoelectric coupler U2, the pin T2 of the thyristor Q2, the pin 3 of the rectifier D1, the other end of the temperature control switch TCW1, the other end of the pressure resistance R24 and one end of the fuse F1, the other end of the fuse F1 is connected to the AC N, the other end of the resistance R11 is connected to the other end of the capacitor C6, the pin G of the thyristor Q2 is connected to one end of the resistance R12, the other end of the resistance R12 is connected to the pin 4 of the photoelectric coupler U2.The pin 1 of rectifier D4 is connected with one end of capacitor C7, one end of capacitor C8, one end of resistor R14, one end of resistor R17, one end of resistor R16, one end of resistor R18, one end of resistor R19, one end of resistor R21 and one end of resistor R22, the other end of resistor R14 is connected with one end of resistor R13, one end of capacitor C9 and pin 1 of 431 voltage regulator U3, the other end of capacitor C9 is connected with pin 2 of 431 voltage regulator U3, the other end of resistor R17, pin 3 of photo-coupler U2 and pin 2 of photo-coupler U2, pin 1 of photo-coupler U2 is connected with the other end of resistor R16, the other end of resistor R19 is connected with pin A of thyristor Q3, the other end of resistor R21 is connected with one end of resistor R20, one end of capacitor C10, one end of capacitor C12 and pin G of thyristor Q3, the other end of resistor R22 is connected with one end of resistor R23 and pin 1 of photo-coupler U4, pin 2 of photo-coupler U4 is connected with the other end of resistor R23, the other end of resistor R18, pin K of thyristor Q3, the other end of capacitor C12, the other end of capacitor C10, the other end of resistor R20, the other end of resistor R13, pin 3 of 431 voltage regulator U3, the other end of capacitor C7, the other end of capacitor C8, pin 2 of rectifier D4 and ground terminal VSS; the core circuit is connected with elements to realize different power automatic switching function, single key on-off and long press comprehensive protection function, no-load protection function, charger or battery fault protection function, abnormal fault charger non-turning light protection function, overload and overheating protection function of different circuit structure, lightning protection and overload protection function and battery full charge automatic power-off function, power indicator LED1 and current indicator LED2 for indicating current state, and socket socket connected with relay K1 pin.

2. The anti-tamper disconnectable socket outlet of claim 1, wherein, The battery full automatic power-off function, when the battery is fully charged, the socket outlet load current decreases, the voltage of the socket outlet returns to the voltage drop of the rectifier D4, the output voltage of the rectifier D4 decreases, and after being pulled down by the resistor R18, the voltage of the pin 1 of the optocoupler U4 is insufficient to light the internal light-emitting diode, and the voltage of the pin 3 of the single-chip microcomputer U1 cannot be pulled down, the first timing unit in the single-chip microcomputer U1 starts timing, and the pin 7 of the single-chip microcomputer U1 outputs a low level to light the current indicator lamp LED2, and after timing, the pin 8 of the single-chip microcomputer U1 outputs a low level to make the transistor Q1 cut off, and the relay K1 is turned off, and the circuit is powered off, and the voltage of the socket outlet load is also turned off.

3. The intelligent control anti-tampering electrical outlet of claim 1, wherein, The different power automatic switching function, when the socket outlet is connected to a small power device, the voltage cannot trigger the silicon controlled rectifier Q3 to conduct after being pulled down by the resistor R18; when the socket outlet is connected to a large power device, the voltage is charged to the capacitor C10 through the resistor R21 after being pulled down by the resistor R18, and when the charging voltage reaches the triggering condition, the silicon controlled rectifier Q3 conducts, so that the voltage is transmitted to the ground terminal VSS through the resistor R19 and the silicon controlled rectifier Q3, the load is pulled down, and the voltage of the pin 1 of the optocoupler U4 is insufficient to light the internal light-emitting diode of the optocoupler U4 after being pulled down by the resistor R22, and the voltage of the pin 3 of the single-chip microcomputer U1 cannot be pulled down; the different power automatic switching function circuit comprises at least one group of the resistor R21, the resistor R20, the capacitor C10, the capacitor C12, the resistor R19 and the silicon controlled rectifier Q3, so as to realize the different power automatic switching function and subsequent control logic.

4. The anti-tamper disconnect electrical outlet of claim 1, wherein, The single-key on-off and long-press comprehensive protection function, when the button K2 is pressed, the voltage is divided by the resistor R15 and the resistor R26 and filtered by the capacitor C11, and then the voltage drives the transistor Q4 to conduct and pull down the voltage of the pin 6 of the single-chip microcomputer U1, short pressing keeps the pin 8 of the single-chip microcomputer U1 at a high level, and long pressing makes the high level of the pin 8 of the single-chip microcomputer U1 turn into a low level, and then pressing the button K2 again pulls down the voltage of the pin 6 of the single-chip microcomputer U1, so that the pin 8 of the single-chip microcomputer U1 immediately outputs a low level to make the transistor Q1 cut off, and the relay K1 is turned off, and the circuit is powered off, and the voltage of the socket outlet load is also turned off.

5. The anti-tamper disconnect electrical outlet of claim 1, wherein, The no-load protection function, when there is no return voltage or weak voltage in the pin 2 of the socket outlet and the voltage enters the pin 3 of the rectifier D4, the internal light-emitting diode of the optocoupler U4 cannot be lighted, and the voltage of the pin 3 of the single-chip microcomputer U1 cannot be pulled down, the fourth timing unit in the single-chip microcomputer U1 starts timing, and the pin 7 of the single-chip microcomputer U1 outputs a low level to light the current indicator lamp LED2, and after timing, the pin 8 of the single-chip microcomputer U1 outputs a low level to make the transistor Q1 cut off, and the relay K1 is turned off, and the circuit is powered off, and the voltage of the socket outlet load is also turned off.

6. The anti-tamper disconnect electrical outlet of claim 1, wherein, The charger or battery protection function, press the button K2, during charging, the socket load current is high and low, the voltage of the pin 1 of the optocoupler U4 is also high and low, resulting in the voltage of the pin 3 of the single-chip microcomputer U1 is high and low, at the same time, the output level of the pin 7 of the single-chip microcomputer U1 is also high and low, so that the current indicator lamp LED2 is bright and dim, at this time, when the voltage of the pin 3 of the single-chip microcomputer U1 is high, the timing of the first timing unit in the single-chip microcomputer U1 is automatically cleared, after the time, the timing is cleared, the first timing unit in the single-chip microcomputer U1 starts timing, when the voltage of the pin 3 of the single-chip microcomputer U1 is high, the timing is entered, when the voltage of the pin 3 of the single-chip microcomputer U1 is low, the timing is paused, after the timing, the pin 8 of the single-chip microcomputer U1 outputs low level, so that the transistor Q1 is cut off, the relay K1 is disconnected, the circuit is powered off, and the voltage of the socket load is disconnected at the same time.

7. The intelligent control anti-tamper electrical outlet of claim 1, wherein, The abnormal fault charger does not turn on the light protection function, press the button K2, during charging, the second timing unit in the single-chip microcomputer U1 starts timing, after the timing, the pin 8 of the single-chip microcomputer U1 outputs low level, so that the transistor Q1 is cut off, the relay K1 is disconnected, the circuit is powered off, and the voltage of the socket load is disconnected at the same time.

8. The anti-tamper disconnect electrical outlet of claim 1, wherein, The implementation mode of the overload and overheating protection function of the different circuit structure is that the circuit structure contains the temperature control switch TCW1, when the temperature control switch TCW1 is turned on after the temperature of the thyristor Q2 is too high, the thyristor Q2 is cut off, the current passes through the temperature control switch TCW1, the output of the rectifier D4 is reduced, and then the voltage of the pin 3 of the single-chip microcomputer U1 is increased, at the same time, the resistance of the thermistor R8 is small due to the overtemperature, so that the voltage of the pin 5 of the single-chip microcomputer U1 is low, at this time, the voltage of the pin 3 of the single-chip microcomputer U1 is increased due to the small non-socket load, the program in the single-chip microcomputer U1 makes the thyristor Q2 have no current passing through to realize cooling, when the temperature control switch TCW1 is turned off, the temperature of the thyristor Q2 returns to normal, the output voltage of the rectifier D4 is increased, the voltage of the pin 3 of the single-chip microcomputer U1 is low, the resistance of the thermistor R8 is large, and the voltage of the pin 5 of the single-chip microcomputer U1 cannot be low, with the decrease of the charging current, the temperature of the thyristor Q2 cannot be too high, the temperature control switch TCW1 cannot be turned on, and the charging can be continued.

9. The intelligent control anti-tampering electrical outlet of claim 1, wherein, The implementation mode of the overload and overheating protection function of the different circuit structure is that the temperature control switch TCW1 is cancelled and the circuit structure of the thermistor R8 is used, when the temperature of the thyristor Q2 is too high due to the overload of the socket load or other reasons, the temperature exceeds the safety value, the resistance of the thermistor R8 is small, the voltage of the pin 5 of the single-chip microcomputer U1 is low, the preset corresponding program in the single-chip microcomputer U1 is started, the pin 8 of the single-chip microcomputer U1 outputs low level, so that the transistor Q1 is cut off, the relay K1 is disconnected, the circuit is powered off, and the voltage of the socket load is disconnected at the same time.

10. The anti-tamper disconnect electrical outlet of claim 1, wherein, The lightning protection and overload protection function, when the mains is normal, the voltage-dependent resistor R24 is cut off, when the overvoltage caused by lightning and the like exceeds the breakdown voltage of the voltage-dependent resistor R24, the voltage-dependent resistor R24 is turned on or the socket is overloaded, so that the current passing through the fuse F1 is greatly increased, and the fuse F1 is fused after exceeding the rated fusing current, thereby cutting off the power supply.

Images