CN214959483U

CN214959483U - Electric shock prevention multiplexed output intelligence switch

Info

Publication number: CN214959483U
Application number: CN202120920293.0U
Authority: CN
Inventors: 彭立新; 曹长松
Original assignee: Xiangxiang Electric Doff Technology Co ltd
Current assignee: Xiangtan Diandaofu Ziyun Technology Co ltd
Priority date: 2021-04-30
Filing date: 2021-04-30
Publication date: 2021-11-30
Anticipated expiration: 2031-04-30

Abstract

The utility model discloses an anti-electric shock multi-path output intelligent switch, which relates to the field of intelligent switch circuit structures and comprises a main control chip, a power circuit module, a conversion circuit module, a fault detection circuit module, an output circuit module, a first operational amplifier chip and a second operational amplifier chip, wherein the fault detection circuit module detects zero sequence current after a person touches a household single live wire, the main control chip rapidly disconnects the connection between the commercial power live wire and the household first power wire and the connection between the commercial power zero line and the household second power wire, the commercial power live wire, the household second power wire and the commercial power zero line are connected with the household first power wire, the original household live wire is changed into the household zero line, the household zero line is changed into the household live wire, and the purposes that the human body touches the single live wire without electric shock and tripping are realized, and the output circuit module realizes multi-path preset current output, and meets the classification control requirements of users on household appliances.

Description

Electric shock prevention multiplexed output intelligence switch

Technical Field

The utility model belongs to intelligence switch circuit structure field, in particular to protection against electric shock multiplexed output intelligence switch.

Background

With the rapid development of scientific technology, more and more electric equipment is used, and the number of fire accidents and even casualties caused by electric shock is high every year. Therefore, the safety of electricity consumption is a key concern in the current electric equipment. The household power consumption accident electric shock accident quantity is more in the electric shock accident that has taken place, to technical personnel in the field, utility model an electric shock prevention, fire prevention's power consumption safety manager is used for the household circuit to avoid accidental touching the live wire to lead to the electric shock casualties very necessary. And current air switch and earth-leakage protector are mechanical switch, and sensitivity is low, reaction time is slow, have a plurality of switches and earth-leakage protector to constitute in a switch box, and the wiring causes the installation inconvenient more, and contact failure and wire heating phenomenon appear easily, easily causes the conflagration, consequently adopts current air switch or earth-leakage protector guarantee domestic power consumption fail safe nature not enough.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, an object of the utility model is to provide an electric shock prevention multiplexed output intelligence switch uses and realizes that human touching single live wire does not electrocute, does not trip in the family circuit, avoids accidental electric shock occurence of failure, and does not influence domestic appliance's operation.

Another object of the utility model is to provide an electric shock protection multiplexed output intelligence switch, the current of multiplexed output predetermined size satisfies user's classification control domestic appliance's demand, need not use a plurality of air switch, earth-leakage protector combination, reduces wiring work load, and then reduces contact failure's emergence probability.

In order to achieve the above purpose, the technical scheme of the utility model is as follows:

the utility model provides an electric shock prevention multiplexed output intelligence switch, the commercial power live wire, the commercial power zero line inserts this intelligence switch, the first power cord of family, family's second power cord is connected with this intelligence switch, the commercial power live wire is connected with the first power cord of family through this intelligence switch, the commercial power zero line is connected with family's second power cord through this intelligence switch, including the main control chip that has central control function, the power supply circuit module who provides working power for this intelligence switch, with the conversion circuit module of family's first power cord and family's second power cord attribute interconversion, detect the first power cord of family, the fault detection circuit module of the fault situation on the second power cord of family, the output circuit module of multiplexed output settlement current, first operational amplifier chip and second operational amplifier chip, first operational amplifier chip, second operational amplifier chip, The conversion circuit modules are connected with the main control chip, the first operational amplifier chip is connected with the fault detection circuit module, and the second operational amplifier chip is connected with the output circuit module. The model of the main control chip is STM32F103RCT 6; the power circuit module provides a working power supply for the intelligent switch; the conversion circuit module disconnects the connection between the live wire of the commercial power and the first power line of the family and the connection between the zero line of the commercial power and the second power line of the family respectively according to the instruction of the main control chip, and connects the live wire of the commercial power and the second power line of the family and the zero line of the commercial power and the first power line of the family. The attribute interconversion of the first household power line and the second household power line refers to the conversion between the first household power line and the second household power line as the household live line, the household zero line and the household zero line, and the household live line. The fault detection circuit module is respectively connected with the first household power line and the second household power line and is used for detecting fault conditions on the first household power line and the second household power line; the output circuit module is respectively connected with a first household power line and a second household power line and outputs currents with preset magnitude in a multi-path mode; the first operational amplifier chip is connected with the fault detection circuit module and the main control chip, and transmits the numerical value transmitted by the fault detection circuit module to the main control chip after being operated and amplified; the model of the first operational amplifier chip is LM 358; the second operational amplifier chip is connected with the output circuit module and the main control chip, and transmits the numerical value transmitted by the output circuit module to the main control chip after being operated and amplified; the second operational amplifier chip is model LM 324.

Further, the conversion circuit module comprises a first conversion triode, a second conversion triode, a first optocoupler, a second optocoupler, a third optocoupler, a fourth optocoupler, a first silicon controlled rectifier, a second silicon controlled rectifier, a third silicon controlled rectifier, a fourth silicon controlled rectifier, a first switch control resistor, a second switch control resistor, a third switch control resistor and a fourth switch control resistor, wherein the models of the first optocoupler, the second optocoupler, the third optocoupler and the fourth optocoupler are MOC3083, the models of the first silicon controlled rectifier, the second silicon controlled rectifier, the third silicon controlled rectifier and the fourth silicon controlled rectifier are BTA100, and the models of the first conversion triode and the second conversion triode are triodes 8050; the 52 th pin of the main control chip is connected with the base of a first conversion triode, the emitting electrode of the first conversion triode is grounded, the collecting electrode of the first conversion triode is connected with the 2 nd pins of a first optocoupler and a third optocoupler, the 45 th pin of the main control chip is connected with the base electrode of a second conversion triode, the emitting electrode of the second conversion triode is grounded, the collecting electrode of the second conversion triode is connected with the 2 nd pins of a second optocoupler and a fourth optocoupler, the 1 st pins of the first optocoupler, the second optocoupler, the third optocoupler and the fourth optocoupler are all connected with VCC, the 6 th pins of the first optocoupler and the fourth optocoupler are all connected with a first household power line, and the 6 th pins of the second optocoupler and the third optocoupler are all connected with a second household power line; the 4 th pin of the first optocoupler is connected with the control electrode of the first silicon controlled rectifier, the first anode of the first silicon controlled rectifier is connected with a household second power line, the second anode of the first silicon controlled rectifier is connected with a commercial power zero line, one end of a first switch control resistor is connected with the control electrode of the first silicon controlled rectifier, and the other end of the first switch control resistor is connected with the second anode of the first silicon controlled rectifier; a 4 th pin of the second optocoupler is connected with a control electrode of a second silicon controlled rectifier, a first anode of the second silicon controlled rectifier is connected with a first household power line, a second anode of the second silicon controlled rectifier is connected with a commercial power zero line, one end of a second switch control resistor is connected with the control electrode of the second silicon controlled rectifier, and the other end of the second switch control resistor is connected with a second anode of the second silicon controlled rectifier; a pin 4 of the third optocoupler is connected with a control electrode of a third silicon controlled rectifier, a first anode of the third silicon controlled rectifier is connected with a first household power line, a second anode of the third silicon controlled rectifier is connected with a commercial power live wire, one end of a third switch control resistor is connected with the control electrode of the third silicon controlled rectifier, and the other end of the third switch control resistor is connected with a second anode of the third silicon controlled rectifier; the 4 th foot of fourth opto-coupler is connected with the control pole of fourth silicon controlled rectifier, and the first positive pole and the second power cord of family of fourth silicon controlled rectifier are connected, and the second positive pole and the commercial power live wire of fourth silicon controlled rectifier are connected, and fourth switch control resistance one end is connected with the control pole of fourth silicon controlled rectifier, and the fourth switch control resistance other end is connected with the second positive pole of fourth silicon controlled rectifier. In an initial state, the 52 th pin of the main control chip is in a high level, the 45 th pin is in a low level, the main control chip controls the first optical coupler and the third optical coupler to be switched on, the second optical coupler and the fourth optical coupler are switched off, so that the first silicon controlled rectifier and the third silicon controlled rectifier are switched on, the second silicon controlled rectifier and the fourth silicon controlled rectifier are switched off, the first power line of a family and the commercial power live wire are connected to form the family live wire, and the second power line of the family and the commercial power zero wire are connected to form the family zero wire. If someone touches a first household power line, a fault detection circuit module detects zero sequence current and transmits a fault condition to a first operational amplifier chip, the first operational amplifier chip correspondingly processes and transmits zero sequence current data to a main control chip, the main control chip judges that someone touches the first household power line, namely, a leakage current value exceeds a set electric shock current value (which can be temporarily set to be 20Ma) according to the fault condition, a circuit conversion instruction is sent out, the 52 th pin of the main control chip is at a low level, the 45 th pin of the main control chip is at a high level, the main control chip controls a first optical coupler and a third optical coupler to be disconnected, a second optical coupler and a fourth optical coupler are switched on, so that the first household power line and a mains supply zero line are connected to form a household zero line, the second household power line and a household live line are connected to form a household live line, and vice versa, then the live wire converts the zero line into rapidly when the people touches single live wire of family, and this intelligence switch utilizes main control chip control reaction sensitive, conversion rate is fast, avoids the electric shock accident to take place, and does not trip, does not influence domestic appliance operation.

Furthermore, the power circuit module comprises a rectifier, a power control chip with the model number of ME8321A, a voltage stabilizer with the model number of AMS1117-3.3, a first transformer with the model number of BLW05T, a first resistor, a second resistor, a third resistor, a fourth resistor, a first rectifier diode, a second rectifier diode, a power light emitting diode, a first capacitor, a second capacitor, a third capacitor and a fourth capacitor, wherein the input end of the rectifier is connected with a live wire and a zero line of a mains supply, the anode of the first capacitor is connected with the anode of the output end of the rectifier, one end of the first resistor is connected with the anode of the output end of the rectifier, the other end of the first resistor and the anode of the second capacitor are both connected with the 5 th pin of the power control chip, one end of the second resistor is connected with the 8 th pin of the power control chip, one end of the third resistor is connected with the 6 th pin of the power control chip, the cathode of the first capacitor, the other end of the third resistor, the third, The other end of the second resistor and the other end of the second capacitor are connected with the negative electrode of the output end of the rectifier, one end of the fourth resistor is connected with the 6 th pin of the power control chip, the other end of the fourth resistor is connected with the 4 th pin of the first transformer, the positive electrode of the first rectifier diode is connected with the 4 th pin of the first transformer, the negative electrode of the first rectifier diode is connected with the 5 th pin of the power control chip, the 4 th pin of the power control chip is connected with the negative electrode of the output end of the rectifier and the 3 rd pin of the first transformer, the 1 st pin and the 2 nd pin of the power control chip are connected with the 2 nd pin of the first transformer, the 1 st pin of the first transformer is connected with the positive electrode of the output end of the rectifier, the 5 th pin of the first transformer is connected with the positive electrode of the second rectifier diode, and the 6 th pin of the first transformer is grounded; the negative pole of the third capacitor is grounded, the positive pole of the third capacitor is connected with the negative pole of the second rectifier diode, the voltage input end of the voltage stabilizer is connected with the negative pole of the second rectifier diode, the voltage output end of the voltage stabilizer is connected with the positive pole of the fourth capacitor and the positive pole of the power supply light emitting diode, the grounding end of the voltage stabilizer is grounded, the negative pole of the fourth capacitor is grounded, and the negative pole of the power supply light emitting diode is grounded. The working power supply adopts a power circuit which mainly comprises a primary side feedback constant voltage and constant current power supply management chip ME8321A to provide working voltage and current for a main control chip, other chips, components and circuits.

Furthermore, the fault detection circuit module comprises an LCD display module, a first zero sequence current transformer, a second transformer, a leakage indication light emitting diode, an over/under voltage indication light emitting diode, an over current indication light emitting diode, a buzzer and a buzzer triode, wherein the LCD display module is connected with the main control chip, the anode of the leakage indication light emitting diode is connected with the 50 th pin of the main control chip, the anode of the over/under voltage indication light emitting diode is connected with the 51 th pin of the main control chip, the anode of the over current indication light emitting diode is connected with the 4 th pin of the main control chip, the base of the buzzer triode is connected with the 3 rd pin of the main control chip, the cathode of the leakage indication light emitting diode, the cathode of the over/under voltage indication light emitting diode, the cathode of the over current indication light emitting diode and the emitter of the buzzer triode are all grounded, the collector of the triode of the buzzer is connected with the negative electrode of the buzzer, and the positive electrode of the buzzer is connected with VCC; the primary coil of the first zero sequence current transformer is connected with a household second power line, one end of the secondary coil of the first zero sequence current transformer is connected with a pin 3 of a first operational amplifier chip, the other end of the secondary coil of the first zero sequence current transformer is grounded, the primary coil of the second zero sequence current transformer is connected with a household first power line, one end of the secondary coil of the second zero sequence current transformer is connected with a pin 5 of the first operational amplifier chip, the other end of the secondary coil of the second zero sequence current transformer is connected with VCC, a pin 1 of the first operational amplifier chip is connected with a pin 8 of a main control chip, a pin 8 of the first operational amplifier chip is connected with VCC,

pins

2, 4 and 6 of the first operational amplifier chip are grounded, a pin 7 of the first operational amplifier chip is connected with a pin 9 of the main control chip, one end of the primary coil of the second transformer is connected with a household first power line, the other end of the primary coil of the second transformer is connected with a second household power line, one end of the secondary coil of the second transformer is connected with the 10 th pin of the main control chip, and the other end of the secondary coil of the second transformer is grounded. When the first household power line is a household live wire, a person touches the household live wire, the second zero sequence current transformer detects zero sequence current and transmits zero sequence current data to the first operational amplifier chip, and therefore the main control chip controls the conversion circuit module to convert the first household power line into a household zero line; when the second household power line is the household live wire, a person touches the household live wire, the first zero sequence current transformer detects zero sequence current and transmits zero sequence current data to the first operational amplifier chip, so that the main control chip controls the conversion circuit module to convert the second household power line into the household zero line, and the effect that the person touches the household live wire without electric shock and tripping is achieved. When the current and the voltage between the household live wire and the household zero line are abnormally changed, the first zero sequence current transformer and the second zero sequence current transformer calculate and amplify detected current data through the first operational amplifier chip and transmit the amplified current data to the main control chip, the second transformer transmits detected voltage signals to the main control chip, the main control chip judges the specific fault condition according to the comparison condition of the current value and the voltage value with a set value and makes a corresponding instruction, and meanwhile, corresponding warning components, namely a leakage indication light-emitting diode, an over/under voltage indication light-emitting diode, an over current indication light-emitting diode and a buzzer, are controlled to warn. If the highest value of the voltage between the first household power line and the second household power line is set to be 265V and the lowest value is set to be 165V, the main control chip cuts off the power supply when the actual voltage value is higher than 265V or lower than 165V. The main control chip displays the corresponding current and voltage values through the LCD module.

Further, the output circuit module comprises a first socket port, a second socket port, a third socket port, a fourth socket port, a fifth socket port, a sixth socket port, a first temperature sensor, a second temperature sensor, a first magnetic latching relay, a second magnetic latching relay, a third magnetic latching relay, a fourth magnetic latching relay, a fifth magnetic latching relay, a sixth magnetic latching relay, a first button, a second button, a third button, a fourth button, a fifth button, a sixth button, a first current transformer, a second current transformer, a third current transformer, a fourth current transformer, a fifth current transformer, a sixth current transformer, a first triode, a second triode, a third triode, a fourth triode, a fifth triode, a sixth triode, a seventh triode, an eighth triode, a fifth triode, a sixth triode, a fourth triode, a sixth triode, a seventh triode, a sixth triode, a fourth triode, a sixth triode, a seventh triode, a fourth triode, a sixth triode, a fourth triode, a sixth triode, a fourth triode, a sixth triode, a fourth triode, a sixth, a fourth triode, a fourth triode, a sixth, a fourth triode, a fourth, a sixth, a fourth triode, a sixth, a fourth triode, a fourth triode, a fourth, a sixth, a fourth, a sixth, a fourth, a ninth triode, a tenth triode, an eleventh triode, a twelfth triode, a first indication light emitting diode, a second indication light emitting diode, a third indication light emitting diode, a fourth indication light emitting diode, a fifth indication light emitting diode and a sixth indication light emitting diode; the number of the second operational amplifier chips is two, and the second operational amplifier chips are divided into a first operational amplifier chip and a second operational amplifier chip; one end of the first temperature sensor is connected with a pin 3 of the first four-operational amplifier chip, one end of the second temperature sensor is connected with a pin 5 of the first four-operational amplifier chip, one ends of the first key, the second key, the third key, the fourth key, the fifth key and the sixth key are all connected with a pin 15 of the main control chip, and the other ends of the first temperature sensor, the second temperature sensor, the first key, the second key, the third key, the fourth key, the fifth key and the sixth key are all grounded; the positive electrode of the first indicating light emitting diode is connected with the 42 th pin of the main control chip, the positive electrode of the second indicating light emitting diode is connected with the 43 th pin of the main control chip, the positive electrode of the third indicating light emitting diode is connected with the 44 th pin of the main control chip, the positive electrode of the fourth indicating light emitting diode is connected with the 53 th pin of the main control chip, the positive electrode of the fifth indicating light emitting diode is connected with the 54 th pin of the main control chip, the positive electrode of the sixth indicating light emitting diode is connected with the 55 th pin of the main control chip, and the negative electrodes of the first indicating light emitting diode, the second indicating light emitting diode, the third indicating light emitting diode, the fourth indicating light emitting diode, the fifth indicating light emitting diode and the sixth indicating light emitting diode are all grounded; the base of the first triode is connected with the 33 th pin of the main control chip, the base of the second triode is connected with the 41 th pin of the main control chip, the base of the third triode is connected with the 34 th pin of the main control chip, the base of the fourth triode is connected with the 40 th pin of the main control chip, the base of the fifth triode is connected with the 28 th pin of the main control chip, the base of the sixth triode is connected with the 39 th pin of the main control chip, the base of the seventh triode is connected with the 27 th pin of the main control chip, the base of the eighth triode is connected with the 38 th pin of the main control chip, the base of the ninth triode is connected with the 26 th pin of the main control chip, the base of the tenth triode is connected with the 37 th pin of the main control chip, the base of the eleventh triode is connected with the 25 th pin of the main control chip, and the base of the twelfth triode is connected with the 36 th pin of the main control chip; the collector of the first triode is connected with the closed end coil of the first magnetic latching relay, the collector of the second triode is connected with the open end coil of the first magnetic latching relay, the collector of the third triode is connected with the closed end coil of the second magnetic latching relay, the collector of the fourth triode is connected with the open end coil of the second magnetic latching relay, the collector of the fifth triode is connected with the closed end coil of the third magnetic latching relay, the collector of the sixth triode is connected with the open end coil of the third magnetic latching relay, the collector of the seventh triode is connected with the closed end coil of the fourth magnetic latching relay, the collector of the eighth triode is connected with the open end coil of the fourth magnetic latching relay, the collector of the ninth triode is connected with the closed end coil of the fifth magnetic latching relay, and the collector of the tenth triode is connected with the open end coil of the fifth magnetic latching relay, the collector of the No. eleven triode is connected with the closed end coil of the sixth magnetic latching relay, and the collector of the No. twelve triode is connected with the open end coil of the sixth magnetic latching relay; emitting electrodes of the first triode, the second triode, the third triode, the fourth triode, the fifth triode, the sixth triode, the seventh triode, the eighth triode, the ninth triode, the tenth triode, the eleventh triode and the twelfth triode are all grounded; VCC is connected between a closed end coil and an open end coil of a first magnetic latching relay, between a closed end coil and an open end coil of a second magnetic latching relay, between a closed end coil and an open end coil of a third magnetic latching relay, between a closed end coil and an open end coil of a fourth magnetic latching relay, between a closed end coil and an open end coil of a fifth magnetic latching relay, and between a closed end coil and an open end coil of a sixth magnetic latching relay, the first magnetic latching relay is connected between a first household power line and one end of a first socket port, the other end of the first socket port is connected with a second household power line, the second magnetic latching relay is connected between a first household power line and one end of a second socket port, the other end of the second socket port is connected with a second household power line, and the third magnetic latching relay is connected between the first household power line and one end of the third socket port, the other end of the third socket port is connected with a household second power line, a fourth magnetic latching relay is connected between the household first power line and one end of the fourth socket port, the other end of the fourth socket port is connected with the household second power line, a fifth magnetic latching relay is connected between the household first power line and one end of the fifth socket port, the other end of the fifth socket port is connected with the household second power line, a sixth magnetic latching relay is connected between the household first power line and one end of the sixth socket port, and the other end of the sixth socket port is connected with the household second power line; the primary coil of the first current transformer is connected with a power line where a first socket port is located, the primary coil of the second current transformer is connected with a power line where a second socket port is located, the primary coil of the third current transformer is connected with a power line where a third socket port is located, the primary coil of the fourth current transformer is connected with a power line where a fourth socket port is located, the primary coil of the fifth current transformer is connected with a power line where a fifth socket port is located, the primary coil of the sixth current transformer is connected with a power line where a sixth socket port is located, one end of the secondary coil of the first current transformer is connected with the 3 rd pin of the second four operational amplifier chip, one end of the secondary coil of the second current transformer is connected with the 5 th pin of the second four operational amplifier chip, one end of the secondary coil of the third current transformer is connected with the 10 th pin of the second four operational amplifier chip, one end of a secondary coil of a fourth current transformer is connected with the 12 th pin of the second four-way operational amplifier chip, one end of a secondary coil of a fifth current transformer is connected with the 12 th pin of the first four-way operational amplifier chip, one end of a secondary coil of a sixth current transformer is connected with the 10 th pin of the first four-way operational amplifier chip, and the other end of the secondary coil of the first current transformer, the other end of the secondary coil of the second current transformer, the other end of the secondary coil of the third current transformer, the other end of the secondary coil of the fourth current transformer, the other end of the secondary coil of the fifth current transformer and the other end of the secondary coil of the sixth current transformer are all grounded; the 1 st pin of the first four operational amplifier chip is connected with the 16 th pin of the main control chip, the 4 th pin of the first four operational amplifier chip is connected with VCC, the 7 th pin of the first four operational amplifier chip is connected with the 11 th pin of the main control chip, the 14 th pin of the first four operational amplifier chip is connected with the 17 th pin of the main control chip, the 8 th pin of the first four operational amplifier chip is connected with the 20 th pin of the main control chip, the 2 nd pin, the 6 th pin, the 9 th pin, the 11 th pin and the 13 th pin of the first four operational amplifier chip are grounded, the 1 st pin of the second four operational amplifier chip is connected with the 21 st pin of the main control chip, the 4 th pin of the second four operational amplifier chip is connected with VCC, the 7 th pin of the second four operational amplifier chip is connected with the 23 th pin of the main control chip, the 14 th pin of the second four operational amplifier chip is connected with the 22 th pin of the main control chip, the 8 th pin of the second four operational amplifier chip is connected with the 24 th pin of the main control chip, the No. 2 pin, the No. 6 pin, the No. 9 pin, the No. 11 pin and the No. 13 pin of the No. two-fourth operational amplifier chip are grounded. The main control chip controls the conduction and the disconnection of the magnetic latching relay through the triode, if the main control chip controls the emitter of the first triode to be conducted with the collector, the emitter of the second triode to be disconnected with the collector, the closed end coil of the first magnetic latching relay is electrified, the first magnetic latching relay is closed, the main control chip controls the emitter of the second triode to be conducted with the collector, the emitter of the first triode is disconnected with the collector, the disconnected end coil of the first magnetic latching relay is electrified, and the first magnetic latching relay is disconnected. The household circuit output is divided into six paths of output, the current value of each path of output has a set value, the output current on the corresponding line is detected by the current transformer on the corresponding line, the current transformer transmits the detected data to the second operational amplifier chip, the data is amplified and calculated by the second operational amplifier chip and then transmitted to the main control chip, and the main control chip controls the corresponding magnetic latching relay to be switched off when judging that the current value exceeds the set value, so that the household electricity utilization safety is guaranteed. The user can operate the first key, the second key, the third key, the fourth key, the fifth key and the sixth key, the main control chip controls the corresponding circuit to output correspondingly, and the main control chip controls the corresponding indicating light emitting diode to display. If a user presses a first key to enable a contact of the first key to be conducted, the main control chip controls the first magnetic latching relay to be conducted, the corresponding socket port is in a usable state, and the corresponding indicating light-emitting diode emits light; the user presses down first button and makes its contact disconnection, and main control chip control first magnetic latching relay disconnection, and the socket port that corresponds is in unusable state, and the corresponding instruction emitting diode 1 second dodges 2 down, so ensures domestic power consumption safety. The first temperature sensor and the second temperature sensor transmit the temperature on the wire to the second operational amplifier chip, the operational amplifier chip amplifies the temperature and transmits the amplified temperature to the main control chip, the main control chip compares the current wire temperature value with a set safe temperature value to judge whether the current power utilization is safe, and if the wire temperature exceeds the safe temperature value, the main control chip cuts off the power supply. The main control chip can also display the temperature value of the conducting wire, the current value output by each path, the current value on the household power bus and the voltage value through the LCD display module. The switching mode of each output can be selected between an automatic mode and a manual mode, wherein the automatic mode is automatic switching-on after power failure, and the manual mode is manual switching-on after power failure.

Further, this intelligence switch still includes first selection key, second selection key, sets up the key, and the one end of first selection key, second selection key, setting key all is connected with the 14 th foot of main control chip, and the other end of first selection key, second selection key, setting key all grounds. The user can set or adjust various current and voltage set values for the intelligent switch through the first selection key, the second selection key and the setting key, and the electricity utilization safety is ensured.

Further, this intelligence switch still includes the WIFI module, and the WIFI module is connected with the 29 th foot, the 30 th foot of main control chip. User's accessible WIFI is connected the cell-phone with this intelligence switch, looks over intelligence switch's particular case on the cell-phone, like electric current, magnitude of voltage, trouble condition to this intelligence switch of operation through corresponding APP realizes remote control and monitoring function.

The utility model has the advantages that: compared with the prior art, the electric shock prevention multi-output intelligent switch is applied to a household circuit to realize that a human body touches a single live wire without electric shock and tripping, so that the occurrence of accidental electric shock accidents is avoided, and the operation of household appliances is not influenced; the current with the preset magnitude is output in a multi-path mode, the requirement of a user for classified control of household appliances is met, a plurality of air switches and leakage protectors do not need to be combined for use, the wiring workload is reduced, and the probability of poor contact is further reduced; the household power line fault is automatically detected, the fault is found, the early warning or the power failure is rapidly realized, and the electric shock and the fire disaster are effectively prevented.

Drawings

Fig. 1 is a block diagram of the present invention.

Fig. 2 is a schematic circuit diagram of the present invention.

Fig. 3 is an enlarged view of a part of the circuit a of the present invention.

Fig. 4 is an enlarged view of a part B of the circuit of the present invention.

Fig. 5 is an enlarged view of a part C of the circuit of the present invention.

Fig. 6 is an enlarged view of a portion of the circuit D of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

referring to fig. 1-6, the utility model provides an electric shock protection multiplexed output intelligence switch, commercial power live wire L, commercial power zero line N inserts this intelligence switch, the first power cord FL of family, family's second power cord SL is connected with this intelligence switch, and commercial power live wire L is connected with family's first power cord FL through this intelligence switch, and commercial power zero line N is connected with family's second power cord SL through this intelligence switch, including main control chip U4, power supply circuit module, converting circuit module, fault detection circuit module, output circuit module, first operational amplifier chip U1, second operational amplifier chip.

The main control chip U4 provides a central control function; the model of the main control chip U4 is STM32F103RCT 6; the power circuit module provides a working power supply for the intelligent switch; the conversion circuit module disconnects the connection between the live line L of the commercial power and the first household power line FL and the connection between the zero line N of the commercial power and the second household power line SL respectively according to the instruction of the main control chip U4, and connects the live line L of the commercial power and the second household power line SL and the zero line N of the commercial power and the first household power line FL; the fault detection circuit module is respectively connected with the first household power line FL and the second household power line SL and is used for detecting the fault conditions of the first household power line FL and the second household power line SL; the output circuit module is respectively connected with a first household power line FL and a second household power line SL and outputs currents with preset magnitude in a multi-path mode; the first operational amplifier chip U1 is connected with the fault detection circuit module and the main control chip U4, and is used for transmitting the numerical value transmitted by the fault detection circuit module to the main control chip U4 after being operated and amplified; the model of the first operational amplifier chip U1 is LM 358; the second operational amplifier chip is connected with the output circuit module and the main control chip U4, and transmits the numerical value of the output circuit module to the main control chip U4 after being operated and amplified; the second operational amplifier chip is model LM 324.

The conversion circuit module comprises a first conversion triode Q14, a second conversion triode Q13, a first optical coupler MO1, a second optical coupler MO2, a third optical coupler MO3, a fourth optical coupler MO4, a first controlled silicon TR1, a second controlled silicon TR2, a third controlled silicon TR3, a fourth controlled silicon TR4, a first switch control resistor R21, a second switch control resistor R24, a third switch control resistor R26 and a fourth switch control resistor R28, wherein the models of the first optical coupler MO1, the second optical coupler MO2, the third optical coupler MO3 and the fourth optical coupler MO4 are MOC3083, the models of the first controlled silicon TR1, the second controlled silicon TR2, the third controlled silicon TR3 and the fourth controlled silicon TR4 are BTA100, and the models of the first conversion triode Q14 and the second conversion triode Q13 are triodes 8050; a 52 th pin of a main control chip U4 is connected with a base electrode of a first conversion triode Q14, an emitter electrode of a first conversion triode Q14 is grounded, a collector electrode of the first conversion triode Q14 is connected with a 2 nd pin of a first optical coupler MO1 and a third optical coupler MO3, a 45 th pin of a main control chip U4 is connected with a base electrode of a second conversion triode Q13, an emitter electrode of a second conversion triode Q13 is grounded, a collector electrode of a second conversion triode Q13 is connected with a 2 nd pin of a second optical coupler MO2 and a 2 nd pin of a fourth optical coupler MO4, a1 st pin of the first optical coupler MO1, a second optical coupler MO2, a third optical coupler MO3 and a fourth optical coupler MO4 is connected with a VCC, a 6 th pin of the first optical coupler MO1 and the fourth optical coupler MO4 is connected with a household first power line FL, and a 6 th pin of the second optical coupler MO2 and the third optical coupler MO3 is connected with a household second power line SL; a 4 th pin of the first optocoupler MO1 is connected with a control electrode of a first controlled silicon TR1, a first anode of the first controlled silicon TR1 is connected with a second household power line SL, a second anode of the first controlled silicon TR1 is connected with a mains supply zero line N, one end of a first switch control resistor R21 is connected with a control electrode of a first controlled silicon TR1, and the other end of the first switch control resistor R21 is connected with a second anode of the first controlled silicon TR 1; a 4 th pin of the second optical coupler MO2 is connected with a control electrode of a second controlled silicon TR2, a first anode of the second controlled silicon TR2 is connected with a first household power line FL, a second anode of the second controlled silicon TR2 is connected with a mains supply zero line N, one end of a second switch control resistor R24 is connected with a control electrode of the second controlled silicon TR2, and the other end of the second switch control resistor R24 is connected with a second anode of the second controlled silicon TR 2; a pin 4 of the third optocoupler MO3 is connected with a control electrode of a third controllable silicon TR3, a first anode of the third controllable silicon TR3 is connected with a first household power line FL, a second anode of the third controllable silicon TR3 is connected with a live line L of a mains supply, one end of a third switch control resistor R26 is connected with a control electrode of the third controllable silicon TR3, and the other end of the third switch control resistor R26 is connected with a second anode of the third controllable silicon TR 3; the 4 th foot of fourth opto-coupler MO4 is connected with fourth silicon controlled rectifier TR 4's control pole, and fourth silicon controlled rectifier TR 4's first positive pole is connected with family's second power cord SL, and fourth silicon controlled rectifier TR 4's second positive pole is connected with commercial power live wire L, and fourth switch control resistance R28 one end is connected with fourth silicon controlled rectifier TR 4's control pole, and the fourth switch control resistance R28 other end is connected with fourth silicon controlled rectifier TR 4's second positive pole. Initial state, main control chip U4's 52 th foot is the high level, 45 th foot is the low level, main control chip U4 control first opto-coupler MO1, third opto-coupler MO3 switches on, second opto-coupler MO2, fourth opto-coupler MO4 disconnection, thereby make first silicon controlled rectifier TR1, third silicon controlled rectifier TR3 switches on, second silicon controlled rectifier TR2, fourth silicon controlled rectifier TR4 ends, make the first power cord FL of family and commercial power live wire L be connected and become the live wire of family, family second power cord SL is connected with commercial power zero line N and becomes the family zero line. If a person touches a first household power line FL, a fault detection circuit module detects zero sequence current and transmits a fault condition to a first operational amplifier chip U1, the first operational amplifier chip U1 correspondingly processes and transmits zero sequence current data to a main control chip U4, the main control chip U4 judges that the person gets an electric shock according to the fault condition, namely, a leakage current value exceeds a set electric shock current value (which can be tentatively set to 20Ma), a circuit switching instruction is sent, a 52 th pin of the main control chip U4 is at a low level, a 45 th pin is at a high level, the main control chip U4 controls a first optical coupler MO1 and a third optical coupler MO3 to be disconnected, a second optical coupler MO2 and a fourth optical coupler MO4 to be connected, so that the first silicon controlled rectifier TR1 and the third silicon controlled rectifier TR3 are switched on, the second silicon controlled rectifier TR2 and the fourth silicon controlled rectifier TR4 are switched on, the first household power line FL and a zero line N are connected into a household zero line, and the second household power line SL is connected with a household live line L to become a household live line L, otherwise, the live wire is converted into the zero line when the person touches the single live wire of family, and this intelligence switch utilizes main control chip U4 control reaction sensitivity, conversion rate are fast, avoids the electric shock accident to take place, and does not trip, does not influence domestic appliance operation.

The power circuit module comprises a rectifier D3, a power control chip U6 with the model number ME8321A, a voltage stabilizer U5 with the model number AMS1117-3.3, a first transformer T1 with the model number BLW05T, a first resistor R41, a second resistor R42, a third resistor R43, a fourth resistor R44, a first rectifier diode D1, a second rectifier diode D2, a power light emitting diode LED1, a first capacitor EC1, a second capacitor EC1, a third capacitor EC1 and a fourth capacitor EC1, wherein the input end of the rectifier D1 is connected with a live wire L and a zero line N of a commercial power, the positive electrode of the first capacitor EC1 is connected with the positive electrode of the output end of the rectifier D1, one end of the first resistor R1 is connected with the positive electrode of the output end of the rectifier D1, the other end of the first resistor R1 and one end of the second capacitor EC1 are connected with the first pin 5 of the power control chip 1, one end of the second resistor R1 is connected with the first pin 366 of the power control chip 1, the negative electrode of a first capacitor EC1, the other end of a third resistor R43, the other end of a second resistor R42 and the other end of a second capacitor EC2 are all connected with the negative electrode of the output end of a rectifier D3, one end of a fourth resistor R44 is connected with the 6 th pin of a power control chip U6, the other end of a fourth resistor R44 is connected with the 4 th pin of a first transformer T1, the positive electrode of a first rectifying diode D1 is connected with the 4 th pin of a first transformer T1, the negative electrode of a first rectifying diode D1 is connected with the 5 th pin of a power control chip U6, the 4 th pin of the power control chip U6 is connected with the negative electrode of the output end of a rectifier 3 and the 3 rd pin of a first transformer T1, the 1 st pin and the 2 nd pin of the power control chip U6 are both connected with the 2 nd pin of the first transformer T1, the 1 st pin of the first transformer T1 is connected with the positive electrode of the output end of a rectifier D3, the first pin of the first transformer T1 is connected with the positive electrode of a second rectifying diode D2, pin 6 of the first transformer T1 is grounded; the negative electrode of the third capacitor EC3 is grounded, the positive electrode of the third capacitor EC3 is connected with the negative electrode of the second rectifier diode D2, the voltage input end of the voltage stabilizer U5 is connected with the negative electrode of the second rectifier diode D2, the voltage output end of the voltage stabilizer U5 is connected with the positive electrode of the fourth capacitor EC4 and the positive electrode of the power supply light emitting diode LED1, the ground end of the voltage stabilizer U5 is grounded, the negative electrode of the fourth capacitor EC4 is grounded, and the negative electrode of the power supply light emitting diode LED1 is grounded. The working power supply adopts a power circuit which mainly comprises a primary side feedback constant voltage and constant current power supply management chip ME8321A to provide working voltage and current for the main control chip U4 and other chips, components and circuits.

The fault detection circuit module comprises an LCD display module LCM, a first zero-sequence current transformer TL1, a second zero-sequence current transformer TL2, a second transformer T2, a leakage indication light emitting diode LED2, an over/under voltage indication light emitting diode LED3, an over current indication light emitting diode LED4, a buzzer F and a buzzer triode Q15, wherein the LCD display module LCM is connected with a main control chip U4, the anode of the leakage indication light emitting diode LED2 is connected with the 50 th pin of the main control chip U4, the anode of the over/under voltage indication light emitting diode LED3 is connected with the 51 st pin of the main control chip U4, the anode of the over current indication light emitting diode LED4 is connected with the 4 th pin of the main control chip U4, the base of the buzzer triode Q15 is connected with the 3 rd pin of the main control chip U4, the cathode of the leakage indication light emitting diode LED2, the anode of the over/under voltage indication light emitting diode LED3, the cathode of the over/under voltage indication light emitting diode LED4, the cathode of the over current indication light emitting diode LED4, The emitting electrodes of the buzzer audion Q15 are all grounded, the collecting electrode of the buzzer audion Q15 is connected with the negative electrode of the buzzer F, and the positive electrode of the buzzer F is connected with VCC; the primary coil of a first zero sequence current transformer TL1 is connected with a second household power line SL, one end of the secondary coil of a first zero sequence current transformer TL1 is connected with a pin 3 of a first operational amplifier chip U1, the other end of the secondary coil of the first zero sequence current transformer TL1 is grounded, the primary coil of a second zero sequence current transformer TL2 is connected with a first household power line FL, one end of the secondary coil of a second zero sequence current transformer TL2 is connected with a pin 5 of a first operational amplifier chip U1, the other end of the secondary coil of the second zero sequence current transformer TL2 is connected with VCC, a pin 1 of the first operational amplifier chip U1 is connected with a pin 8 of a main control chip U4, a pin 8 of the first operational amplifier chip U1 is connected with VCC, a pin 2, a pin 4 and a pin 6 of the first operational amplifier chip U1 are grounded, a pin 7 of the first operational amplifier chip U1 is connected with a pin 9 of the main control chip U4, one end of a primary coil of the second transformer T2 is connected with a first household power line FL, the other end of the primary coil of the second transformer T2 is connected with a second household power line SL, one end of a secondary coil of the second transformer T2 is connected with a10 th pin of the main control chip U4, and the other end of the secondary coil of the second transformer T2 is grounded. When the first household power line FL is a household live wire, a person touches the household live wire, the second zero-sequence current transformer TL2 detects zero-sequence current, and zero-sequence current data are transmitted to the first operational amplifier chip U1, so that the main control chip U4 controls the conversion circuit module to convert the first household power line FL into a household zero line; when the second household power line SL is a household live line, a person touches the household live line, the first zero-sequence current transformer TL1 detects zero-sequence current, and zero-sequence current data is transmitted to the first operational amplifier chip U1, so that the main control chip U4 controls the conversion circuit module to convert the second household power line SL into a household zero line, and thus, the person touches the household live line without electric shock or tripping. When the current and the voltage between the household live wire and the household zero wire are abnormally changed, the first zero sequence current transformer TL1 and the second zero sequence current transformer TL2 calculate and amplify detected current data through a first operational amplifier chip U1 and then transmit the amplified current data to a main control chip U4, the second transformer T2 transmits detected voltage signals to the main control chip U4, the main control chip U4 judges the specific fault condition according to the comparison condition of the current value, the voltage value and a set value and makes a corresponding instruction, and meanwhile, corresponding warning components, namely a leakage indication light emitting diode LED2, an over/under voltage indication light emitting diode LED3, an over current indication light emitting diode LED4 and a buzzer F are controlled to warn. If the maximum value of the voltage between the first power line FL and the second power line SL is set to 265V and the minimum value is set to 165V, the main control chip U4 cuts off the power supply when the actual voltage value is higher than 265V or lower than 165V. The main control chip U4 displays the corresponding current and voltage values through the LCD display module LCM.

The output circuit module comprises a first socket port, a second socket port, a third socket port, a fourth socket port, a fifth socket port, a sixth socket port, a first temperature sensor RT1, a second temperature sensor RT2, a first magnetic latching relay J1, a second magnetic latching relay J2, a third magnetic latching relay J3, a fourth magnetic latching relay J4, a fifth magnetic latching relay J5, a sixth magnetic latching relay J6, a first key SW-K1, a second key SW-K2, a third key SW-K3, a fourth key SW-K4, a fifth key SW-K5, a sixth key SW-K6, a first current KL 56 1, a second current transformer KL2, a third current transformer KL3, a fourth current transformer KL4, a fifth current transformer 5, a sixth current transformer KL2, a first triode Q6 3, a second triode No. 2Q 1, a third triode No. Q2, a third current transformer KL3, a fourth triode 4, a fourth current transformer and a fourth triode, A third triode Q3, a fourth triode Q4, a fifth triode Q5, a sixth triode Q6, a seventh triode Q7, an eighth triode Q8, a ninth triode Q9, a tenth triode Q10, an eleventh triode Q11, a twelfth triode Q12, a first indicating light-emitting diode LK1, a second indicating light-emitting diode LK2, a third indicating light-emitting diode LK3, a fourth indicating light-emitting diode LK4, a fifth indicating light-emitting diode LK5 and a sixth indicating light-emitting diode LK 6; the number of the second operational amplifier chips is two, and the second operational amplifier chips are divided into a first four operational amplifier chip U2 and a second four operational amplifier chip U3; one end of a first temperature sensor RT1 is connected with the 3 rd pin of a first four operational amplifier chip U2, one end of a second temperature sensor RT2 is connected with the 5 th pin of the first four operational amplifier chip U2, one ends of a first key SW-K1, a second key SW-K2, a third key SW-K3, a fourth key SW-K4, a fifth key SW-K5 and a sixth key SW-K6 are all connected with the 15 th pin of a main control chip U4, and the other ends of the first temperature sensor RT1, the second temperature sensor RT2, the first key SW-K1, the second key SW-K2, the third key SW-K3, the fourth key SW-K4, the fifth key SW-K5 and the sixth key SW-K6 are all grounded; the positive electrode of a first indicating light emitting diode LK1 is connected with the 42 th pin of the main control chip U4, the positive electrode of a second indicating light emitting diode LK2 is connected with the 43 th pin of the main control chip U4, the positive electrode of a third indicating light emitting diode LK3 is connected with the 44 th pin of the main control chip U4, the positive electrode of a fourth indicating light emitting diode LK4 is connected with the 53 th pin of the main control chip U4, the positive electrode of a fifth indicating light emitting diode LK5 is connected with the 54 th pin of the main control chip U4, the positive electrode of a sixth indicating light emitting diode LK6 is connected with the 55 th pin of the main control chip U4, and the negative electrodes of the first indicating light emitting diode LK1, the second indicating light emitting diode LK2, the third indicating light emitting diode LK 48, the fourth indicating light emitting diode 58LK 26, the fifth indicating light emitting diode LK5 and the sixth indicating light emitting diode 6 are all grounded; the base of a first triode Q1 is connected with the 33 rd pin of the main control chip U4, the base of a second triode Q2 is connected with the 41 th pin of the main control chip U4, the base of a third triode Q3 is connected with the 34 th pin of the main control chip U4, the base of a fourth triode Q4 is connected with the 40 th pin of the main control chip U4, the base of a fifth triode Q5 is connected with the 28 th pin of the main control chip U4, the base of a sixth triode Q6 is connected with the 39 th pin of the main control chip U4, the base of a seventh triode Q7 is connected with the 27 th pin of the main control chip U4, the base of an eighth triode Q8 is connected with the 38 th pin of the main control chip U4, the base of a ninth triode Q9 is connected with the 26 th pin of the main control chip U4, the base of a tenth triode Q10 is connected with the 37 th pin of the main control chip U4, the base of an eleventh triode Q82 11 is connected with the 25 th pin of the main control chip U4, and the base of the twelfth pin 12 is connected with the main control chip U8636; the collector of a first triode Q1 is connected with the closed end coil of a first magnetic latching relay J1, the collector of a second triode Q2 is connected with the open end coil of the first magnetic latching relay J1, the collector of a third triode Q3 is connected with the closed end coil of a second magnetic latching relay J2, the collector of a fourth triode Q4 is connected with the open end coil of the second magnetic latching relay J2, the collector of a fifth triode Q5 is connected with the closed end coil of a third magnetic latching relay J3, the collector of a sixth triode Q6 is connected with the open end coil of a third magnetic latching relay J3, the collector of a seventh triode Q7 is connected with the closed end coil of a fourth magnetic latching relay J4, the collector of an eighth triode Q8 is connected with the open end coil of a fourth magnetic latching relay J4, the collector of a ninth triode Q9 is connected with the closed end coil of the fifth magnetic latching relay J5, a collector of a tenth triode Q10 is connected with a break end coil of a fifth magnetic latching relay J5, a collector of an eleventh triode Q11 is connected with a close end coil of a sixth magnetic latching relay J6, and a collector of a twelfth triode Q12 is connected with a break end coil of a sixth magnetic latching relay J6; the emitting electrodes of the first triode Q1, the second triode Q2, the third triode Q3, the fourth triode Q4, the fifth triode Q5, the sixth triode Q6, the seventh triode Q7, the eighth triode Q8, the ninth triode Q9, the tenth triode Q10, the eleventh triode Q11 and the twelfth triode Q12 are all grounded; VCC is connected between a closed end coil and an open end coil of a first magnetic latching relay J1, between a closed end coil and an open end coil of a second magnetic latching relay J2, between a closed end coil and an open end coil of a third magnetic latching relay J3, between a closed end coil and an open end coil of a fourth magnetic latching relay J4, between a closed end coil and an open end coil of a fifth magnetic latching relay J5, and between a closed end coil and an open end coil of a sixth magnetic latching relay J6, the first magnetic latching relay J1 is connected between a first household power line FL and one end of a first socket port, the other end of the first socket port is connected with a second household power line SL, the second magnetic latching relay J2 is connected between the first household power line FL and one end of a second socket port, the other end of the second socket port is connected with the second household power line SL, a third magnetic latching relay J3 is connected between the first household power line FL and one end of a third socket port, the other end of the third socket port is connected with the second household power line SL, a fourth magnetic latching relay J4 is connected between the first household power line FL and one end of a fourth socket port, the other end of the fourth socket port is connected with the second household power line SL, a fifth magnetic latching relay J5 is connected between the first household power line FL and one end of a fifth socket port, the other end of the fifth socket port is connected with the second household power line SL, a sixth magnetic latching relay J6 is connected between the first household power line FL and one end of a sixth socket port, and the other end of the sixth socket port is connected with the second household power line SL; the primary coil of a first current transformer KL1 is connected with a power line where a first socket port is located, the primary coil of a second current transformer KL2 is connected with a power line where a second socket port is located, the primary coil of a third current transformer KL3 is connected with a power line where a third socket port is located, the primary coil of a fourth current transformer KL4 is connected with a power line where a fourth socket port is located, the primary coil of a fifth current transformer KL5 is connected with a power line where a fifth socket port is located, the primary coil of a sixth current transformer KL6 is connected with a power line where a sixth socket port is located, one end of a secondary coil of the first current transformer KL1 is connected with a pin 3 of a second four operational amplifier chip U3, one end of a secondary coil of the second current transformer KL2 is connected with a pin 5 of a second four operational amplifier chip U3, one end of the secondary coil of the third current transformer KL3 is connected with a pin 10 of the second four operational amplifier chip U3, one end of a secondary coil of a fourth current transformer KL4 is connected with the 12 th pin of a second four-operational amplifier chip U3, one end of a secondary coil of a fifth current transformer KL5 is connected with the 12 th pin of a first four-operational amplifier chip U2, one end of a secondary coil of a sixth current transformer KL6 is connected with the 10 th pin of a first four-operational amplifier chip U2, the other end of the secondary coil of a first current transformer KL1, the other end of the secondary coil of a second current transformer KL2, the other end of the secondary coil of a third current transformer KL3, the other end of the secondary coil of a fourth current transformer KL4, the other end of the secondary coil of a fifth current transformer KL5 and the other end of the secondary coil of a sixth current transformer KL6 are all grounded; the 1 st pin of the first four operational amplifier chip U2 is connected with the 16 th pin of the main control chip U4, the 4 th pin of the first four operational amplifier chip U2 is connected with VCC, the 7 th pin of the first four operational amplifier chip U2 is connected with the 11 th pin of the main control chip U4, the 14 th pin of the first four operational amplifier chip U2 is connected with the 17 th pin of the main control chip U4, the 8 th pin of the first four operational amplifier chip U2 is connected with the 20 th pin of the main control chip U4, the 2 nd, 6 th, 9 th, 11 th and 13 th pins of the first four operational amplifier chip U2 are grounded, the 1 st pin of the second four operational amplifier chip U3 is connected with the 21 st pin of the main control chip U4, the 4 th pin of the second four operational amplifier chip U3 is connected with VCC chip U3622, the 7 th pin of the second four operational amplifier chip U3 is connected with the 23 th pin of the main control chip U4, and the second operational amplifier U3 is connected with the U4 of the main control chip U3622, the 8 th pin of the second four operational amplifier chip U3 is connected with the 24 th pin of the main control chip U4, and the 2 nd, 6 th, 9 th, 11 th and 13 th pins of the second four operational amplifier chip U3 are grounded. The household circuit output is divided into six paths of output, namely air conditioner socket output, water heater socket output, kitchen socket output, common power utilization socket, bathroom lighting output and common lighting output, each path of output current has a set value, the output current on the corresponding line is detected by a current transformer on the corresponding line, the current transformer transmits the detected data to a second operational amplifier chip and transmits the data to a main control chip U4 after the data is amplified and calculated by the second operational amplifier chip, and the main control chip U4 controls corresponding magnetic latching relays to be switched off when the current value exceeds the set value, so that the household power utilization safety is guaranteed. A user can operate the first key SW-K1, the second key SW-K2, the third key SW-K3, the fourth key SW-K4, the fifth key SW-K5 and the sixth key SW-K6, the main control chip U4 controls corresponding circuits to output correspondingly, and the main control chip U4 controls corresponding indicating light emitting diodes to display. If a user presses a first key SW-K1 to enable a contact of the first key to be conducted, a main control chip U4 controls a first magnetic latching relay J1 to be conducted, a corresponding socket port is in a usable state, and a corresponding indicating light emitting diode emits light; a user presses a first key SW-K1 to disconnect the contact, a main control chip U4 controls a first magnetic latching relay J1 to be disconnected, a corresponding socket port is in an unavailable state, and a corresponding indicating light emitting diode flashes for 1 second for 2 hours, so that the household electricity safety is ensured. The first temperature sensor RT1, the second temperature sensor RT2 transmit the temperature on the wire to the second operational amplifier chip, the second operational amplifier chip amplifies the temperature and transmits the amplified temperature to the main control chip U4, the main control chip U4 compares the current wire temperature value with the set safe temperature value to judge whether the current power utilization is safe, and if the wire temperature exceeds the safe temperature value, the main control chip U4 cuts off the power supply. The main control chip U4 can also display the temperature value of the wire, the current value output by each channel, the current value on the household power bus and the voltage value through the LCM. The switch mode of every output can set up the selection between automatic, manual mode, and automatic mode is automatic combined floodgate after cutting off the power supply promptly, and manual mode needs manual combined floodgate after cutting off the power supply promptly, also can be through the long-range setting of cell-phone APP.

The intelligent switch also comprises a first selection key SW-1, a second selection key SW-2 and a setting key SW-3, wherein one end of each of the first selection key SW-1, the second selection key SW-2 and the setting key SW-3 is connected with the 14 th pin of the main control chip U4, and the other end of each of the first selection key SW-1, the second selection key SW-2 and the setting key SW-3 is grounded. The user can set or adjust the set value for each current and voltage of the intelligent switch through the first selection key SW-1, the second selection key SW-2 and the setting key SW-3.

This intelligence switch still includes the WIFI module, and the WIFI module is connected with the 29 th foot, the 30 th foot of main control chip U4. User's accessible WIFI is connected the cell-phone with this intelligence switch, looks over intelligence switch's particular case on the cell-phone, like electric current, magnitude of voltage, trouble condition to this intelligence switch of operation through corresponding APP realizes remote control and monitoring function.

The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. The utility model provides an electric shock prevention multiplexed output intelligence switch, commercial power live wire, commercial power zero line access this intelligence switch, and first power cord of family, family's second power cord are connected with this intelligence switch, and the commercial power live wire is connected with the first power cord of family through this intelligence switch, and the commercial power zero line is connected its characterized in that through this intelligence switch and family's second power cord: the intelligent switch comprises a main control chip with a central control function, a power supply circuit module for providing a working power supply for the intelligent switch, a conversion circuit module for mutually converting the attributes of a first household power line and a second household power line, a fault detection circuit module for detecting the fault condition of the first household power line and the second household power line, an output circuit module for outputting set current in a multipath manner, a first operational amplifier chip and a second operational amplifier chip, wherein the first operational amplifier chip, the second operational amplifier chip and the conversion circuit module are all connected with the main control chip, the first operational amplifier chip is connected with the fault detection circuit module, and the second operational amplifier chip is connected with the output circuit module.

2. The protection against electric shock multiplexed output intelligence switch of claim 1 wherein: the model of the main control chip is STM32F103RCT6, the model of the first operational amplifier chip is LM358, and the model of the second operational amplifier chip is LM 324.

3. The protection against electric shock multiplexed output intelligence switch of claim 2 wherein: the conversion circuit module comprises a first conversion triode, a second conversion triode, a first optocoupler, a second optocoupler, a third optocoupler, a fourth optocoupler, a first silicon controlled rectifier, a second silicon controlled rectifier, a third silicon controlled rectifier, a fourth silicon controlled rectifier, a first switch control resistor, a second switch control resistor, a third switch control resistor and a fourth switch control resistor, wherein the models of the first optocoupler, the second optocoupler, the third optocoupler and the fourth optocoupler are MOC 3083; the 52 th pin of the main control chip is connected with the base of a first conversion triode, the emitting electrode of the first conversion triode is grounded, the collecting electrode of the first conversion triode is connected with the 2 nd pins of a first optocoupler and a third optocoupler, the 45 th pin of the main control chip is connected with the base electrode of a second conversion triode, the emitting electrode of the second conversion triode is grounded, the collecting electrode of the second conversion triode is connected with the 2 nd pins of a second optocoupler and a fourth optocoupler, the 1 st pins of the first optocoupler, the second optocoupler, the third optocoupler and the fourth optocoupler are all connected with VCC, the 6 th pins of the first optocoupler and the fourth optocoupler are all connected with a first household power line, and the 6 th pins of the second optocoupler and the third optocoupler are all connected with a second household power line; the 4 th pin of the first optocoupler is connected with the control electrode of the first silicon controlled rectifier, the first anode of the first silicon controlled rectifier is connected with a household second power line, the second anode of the first silicon controlled rectifier is connected with a commercial power zero line, one end of a first switch control resistor is connected with the control electrode of the first silicon controlled rectifier, and the other end of the first switch control resistor is connected with the second anode of the first silicon controlled rectifier; a 4 th pin of the second optocoupler is connected with a control electrode of a second silicon controlled rectifier, a first anode of the second silicon controlled rectifier is connected with a first household power line, a second anode of the second silicon controlled rectifier is connected with a commercial power zero line, one end of a second switch control resistor is connected with the control electrode of the second silicon controlled rectifier, and the other end of the second switch control resistor is connected with a second anode of the second silicon controlled rectifier; a pin 4 of the third optocoupler is connected with a control electrode of a third silicon controlled rectifier, a first anode of the third silicon controlled rectifier is connected with a first household power line, a second anode of the third silicon controlled rectifier is connected with a commercial power live wire, one end of a third switch control resistor is connected with the control electrode of the third silicon controlled rectifier, and the other end of the third switch control resistor is connected with a second anode of the third silicon controlled rectifier; the 4 th foot of fourth opto-coupler is connected with the control pole of fourth silicon controlled rectifier, and the first positive pole and the second power cord of family of fourth silicon controlled rectifier are connected, and the second positive pole and the commercial power live wire of fourth silicon controlled rectifier are connected, and fourth switch control resistance one end is connected with the control pole of fourth silicon controlled rectifier, and the fourth switch control resistance other end is connected with the second positive pole of fourth silicon controlled rectifier.

4. The protection against electric shock multiplexed output intelligence switch of claim 3 wherein: the types of the first silicon controlled rectifier, the second silicon controlled rectifier, the third silicon controlled rectifier and the fourth silicon controlled rectifier are BTA100, and the types of the first conversion triode and the second conversion triode are triode 8050.

5. The protection against electric shock multiplexed output intelligence switch of claim 4 wherein: the power circuit module comprises a rectifier, a power control chip with the model number of ME8321A, a voltage stabilizer with the model number of AMS1117-3.3, a first transformer with the model number of BLW05T, a first resistor, a second resistor, a third resistor, a fourth resistor, a first rectifier diode, a second rectifier diode, a power light-emitting diode, a first capacitor, a second capacitor, a third capacitor and a fourth capacitor, wherein the input end of the rectifier is connected with a live wire and a zero line of commercial power, the anode of the first capacitor is connected with the anode of the output end of the rectifier, one end of the first resistor is connected with the anode of the output end of the rectifier, the other end of the first resistor and one end of the second capacitor are both connected with the 5 th pin of the power control chip, one end of the second resistor is connected with the 8 th pin of the power control chip, one end of the third resistor is connected with the 6 th pin of the power control chip, the cathode of the first capacitor, the other end of the third resistor, the other end of the second resistor, the fourth resistor, the, The other pole of the second capacitor is connected with the negative pole of the output end of the rectifier, one end of a fourth resistor is connected with the 6 th pin of the power control chip, the other end of the fourth resistor is connected with the 4 th pin of the first transformer, the positive pole of the first rectifier diode is connected with the 4 th pin of the first transformer, the negative pole of the first rectifier diode is connected with the 5 th pin of the power control chip, the 4 th pin of the power control chip is connected with the negative pole of the output end of the rectifier and the 3 rd pin of the first transformer, the 1 st pin and the 2 nd pin of the power control chip are connected with the 2 nd pin of the first transformer, the 1 st pin of the first transformer is connected with the positive pole of the output end of the rectifier, the 5 th pin of the first transformer is connected with the positive pole of the second rectifier diode, and the 6 th pin of the first transformer is grounded; the negative pole of the third capacitor is grounded, the positive pole of the third capacitor is connected with the negative pole of the second rectifier diode, the voltage input end of the voltage stabilizer is connected with the negative pole of the second rectifier diode, the voltage output end of the voltage stabilizer is connected with the positive pole of the fourth capacitor and the positive pole of the power supply light emitting diode, the grounding end of the voltage stabilizer is grounded, the negative pole of the fourth capacitor is grounded, and the negative pole of the power supply light emitting diode is grounded.

6. The protection against electric shock multiplexed output intelligence switch of claim 5 wherein: the fault detection circuit module comprises an LCD display module, a first zero sequence current transformer, a second transformer, a leakage indication light-emitting diode, an over/under voltage indication light-emitting diode, an over current indication light-emitting diode, a buzzer and a buzzer triode, wherein the LCD display module is connected with the main control chip, the anode of the leakage indication light-emitting diode is connected with the 50 th pin of the main control chip, the anode of the over/under voltage indication light-emitting diode is connected with the 51 th pin of the main control chip, the anode of the over current indication light-emitting diode is connected with the 4 th pin of the main control chip, the base of the buzzer triode is connected with the 3 rd pin of the main control chip, the cathode of the leakage indication light-emitting diode, the cathode of the over/under voltage indication light-emitting diode, the cathode of the over current indication light-emitting diode and the emitter of the buzzer triode are all grounded, and the collector of the buzzer triode is connected with the cathode of the buzzer, the positive electrode of the buzzer is connected with VCC; the primary coil of the first zero sequence current transformer is connected with a household second power line, one end of the secondary coil of the first zero sequence current transformer is connected with a pin 3 of a first operational amplifier chip, the other end of the secondary coil of the first zero sequence current transformer is grounded, the primary coil of the second zero sequence current transformer is connected with a household first power line, one end of the secondary coil of the second zero sequence current transformer is connected with a pin 5 of the first operational amplifier chip, the other end of the secondary coil of the second zero sequence current transformer is connected with VCC, a pin 1 of the first operational amplifier chip is connected with a pin 8 of a main control chip, a pin 8 of the first operational amplifier chip is connected with VCC, pins 2, 4 and 6 of the first operational amplifier chip are grounded, a pin 7 of the first operational amplifier chip is connected with a pin 9 of the main control chip, one end of the primary coil of the second transformer is connected with a household first power line, the other end of the primary coil of the second transformer is connected with a second household power line, one end of the secondary coil of the second transformer is connected with the 10 th pin of the main control chip, and the other end of the secondary coil of the second transformer is grounded.

7. The protection against electric shock multiplexed output intelligence switch of claim 6 wherein: the output circuit module comprises a first socket port, a second socket port, a third socket port, a fourth socket port, a fifth socket port, a sixth socket port, a first temperature sensor, a second temperature sensor, a first magnetic latching relay, a second magnetic latching relay, a third magnetic latching relay, a fourth magnetic latching relay, a fifth magnetic latching relay, a sixth magnetic latching relay, a first button, a second button, a third button, a fourth button, a fifth button, a sixth button, a first current transformer, a second current transformer, a third current transformer, a fourth current transformer, a fifth current transformer, a sixth current transformer, a first triode, a second triode, a third triode, a fourth triode, a fifth triode, a sixth triode, a seventh triode, an eighth triode, a ninth triode, a fifth triode, a sixth triode, a seventh triode, a sixth triode, a ninth triode, a fifth triode, a sixth triode, a fourth triode, a sixth triode, a seventh triode, a sixth triode, a ninth triode, a fifth triode, a fourth triode, a sixth triode, a fourth triode, a sixth triode, a fourth triode, a sixth triode, a fourth triode, a sixth triode, a fourth triode, a sixth triode, a fourth triode, A tenth triode, an eleventh triode, a twelfth triode, a first indication light emitting diode, a second indication light emitting diode, a third indication light emitting diode, a fourth indication light emitting diode, a fifth indication light emitting diode and a sixth indication light emitting diode; the number of the second operational amplifier chips is two, and the second operational amplifier chips are divided into a first operational amplifier chip and a second operational amplifier chip; one end of the first temperature sensor is connected with a pin 3 of the first four-operational amplifier chip, one end of the second temperature sensor is connected with a pin 5 of the first four-operational amplifier chip, one ends of the first key, the second key, the third key, the fourth key, the fifth key and the sixth key are all connected with a pin 15 of the main control chip, and the other ends of the first temperature sensor, the second temperature sensor, the first key, the second key, the third key, the fourth key, the fifth key and the sixth key are all grounded; the positive electrode of the first indicating light emitting diode is connected with the 42 th pin of the main control chip, the positive electrode of the second indicating light emitting diode is connected with the 43 th pin of the main control chip, the positive electrode of the third indicating light emitting diode is connected with the 44 th pin of the main control chip, the positive electrode of the fourth indicating light emitting diode is connected with the 53 th pin of the main control chip, the positive electrode of the fifth indicating light emitting diode is connected with the 54 th pin of the main control chip, the positive electrode of the sixth indicating light emitting diode is connected with the 55 th pin of the main control chip, and the negative electrodes of the first indicating light emitting diode, the second indicating light emitting diode, the third indicating light emitting diode, the fourth indicating light emitting diode, the fifth indicating light emitting diode and the sixth indicating light emitting diode are all grounded; the base of the first triode is connected with the 33 th pin of the main control chip, the base of the second triode is connected with the 41 th pin of the main control chip, the base of the third triode is connected with the 34 th pin of the main control chip, the base of the fourth triode is connected with the 40 th pin of the main control chip, the base of the fifth triode is connected with the 28 th pin of the main control chip, the base of the sixth triode is connected with the 39 th pin of the main control chip, the base of the seventh triode is connected with the 27 th pin of the main control chip, the base of the eighth triode is connected with the 38 th pin of the main control chip, the base of the ninth triode is connected with the 26 th pin of the main control chip, the base of the tenth triode is connected with the 37 th pin of the main control chip, the base of the eleventh triode is connected with the 25 th pin of the main control chip, and the base of the twelfth triode is connected with the 36 th pin of the main control chip; the collector of the first triode is connected with the closed end coil of the first magnetic latching relay, the collector of the second triode is connected with the open end coil of the first magnetic latching relay, the collector of the third triode is connected with the closed end coil of the second magnetic latching relay, the collector of the fourth triode is connected with the open end coil of the second magnetic latching relay, the collector of the fifth triode is connected with the closed end coil of the third magnetic latching relay, the collector of the sixth triode is connected with the open end coil of the third magnetic latching relay, the collector of the seventh triode is connected with the closed end coil of the fourth magnetic latching relay, the collector of the eighth triode is connected with the open end coil of the fourth magnetic latching relay, the collector of the ninth triode is connected with the closed end coil of the fifth magnetic latching relay, and the collector of the tenth triode is connected with the open end coil of the fifth magnetic latching relay, the collector of the No. eleven triode is connected with the closed end coil of the sixth magnetic latching relay, and the collector of the No. twelve triode is connected with the open end coil of the sixth magnetic latching relay; emitting electrodes of the first triode, the second triode, the third triode, the fourth triode, the fifth triode, the sixth triode, the seventh triode, the eighth triode, the ninth triode, the tenth triode, the eleventh triode and the twelfth triode are all grounded; VCC is connected between a closed end coil and an open end coil of a first magnetic latching relay, between a closed end coil and an open end coil of a second magnetic latching relay, between a closed end coil and an open end coil of a third magnetic latching relay, between a closed end coil and an open end coil of a fourth magnetic latching relay, between a closed end coil and an open end coil of a fifth magnetic latching relay, and between a closed end coil and an open end coil of a sixth magnetic latching relay, the first magnetic latching relay is connected between a first household power line and one end of a first socket port, the other end of the first socket port is connected with a second household power line, the second magnetic latching relay is connected between a first household power line and one end of a second socket port, the other end of the second socket port is connected with a second household power line, and the third magnetic latching relay is connected between the first household power line and one end of the third socket port, the other end of the third socket port is connected with a household second power line, a fourth magnetic latching relay is connected between the household first power line and one end of the fourth socket port, the other end of the fourth socket port is connected with the household second power line, a fifth magnetic latching relay is connected between the household first power line and one end of the fifth socket port, the other end of the fifth socket port is connected with the household second power line, a sixth magnetic latching relay is connected between the household first power line and one end of the sixth socket port, and the other end of the sixth socket port is connected with the household second power line; the primary coil of the first current transformer is connected with a power line where a first socket port is located, the primary coil of the second current transformer is connected with a power line where a second socket port is located, the primary coil of the third current transformer is connected with a power line where a third socket port is located, the primary coil of the fourth current transformer is connected with a power line where a fourth socket port is located, the primary coil of the fifth current transformer is connected with a power line where a fifth socket port is located, the primary coil of the sixth current transformer is connected with a power line where a sixth socket port is located, one end of the secondary coil of the first current transformer is connected with the 3 rd pin of the second four operational amplifier chip, one end of the secondary coil of the second current transformer is connected with the 5 th pin of the second four operational amplifier chip, one end of the secondary coil of the third current transformer is connected with the 10 th pin of the second four operational amplifier chip, one end of a secondary coil of a fourth current transformer is connected with the 12 th pin of the second four-way operational amplifier chip, one end of a secondary coil of a fifth current transformer is connected with the 12 th pin of the first four-way operational amplifier chip, one end of a secondary coil of a sixth current transformer is connected with the 10 th pin of the first four-way operational amplifier chip, and the other end of the secondary coil of the first current transformer, the other end of the secondary coil of the second current transformer, the other end of the secondary coil of the third current transformer, the other end of the secondary coil of the fourth current transformer, the other end of the secondary coil of the fifth current transformer and the other end of the secondary coil of the sixth current transformer are all grounded; the 1 st pin of the first four operational amplifier chip is connected with the 16 th pin of the main control chip, the 4 th pin of the first four operational amplifier chip is connected with VCC, the 7 th pin of the first four operational amplifier chip is connected with the 11 th pin of the main control chip, the 14 th pin of the first four operational amplifier chip is connected with the 17 th pin of the main control chip, the 8 th pin of the first four operational amplifier chip is connected with the 20 th pin of the main control chip, the 2 nd pin, the 6 th pin, the 9 th pin, the 11 th pin and the 13 th pin of the first four operational amplifier chip are grounded, the 1 st pin of the second four operational amplifier chip is connected with the 21 st pin of the main control chip, the 4 th pin of the second four operational amplifier chip is connected with VCC, the 7 th pin of the second four operational amplifier chip is connected with the 23 th pin of the main control chip, the 14 th pin of the second four operational amplifier chip is connected with the 22 th pin of the main control chip, the 8 th pin of the second four operational amplifier chip is connected with the 24 th pin of the main control chip, the No. 2 pin, the No. 6 pin, the No. 9 pin, the No. 11 pin and the No. 13 pin of the No. two-fourth operational amplifier chip are grounded.

8. The protection against electric shock multiplexed output intelligence switch of claim 7 wherein: the electronic device further comprises a first selection key, a second selection key and a setting key, wherein one end of the first selection key, one end of the second selection key and one end of the setting key are all connected with the 14 th pin of the main control chip, and the other ends of the first selection key, the second selection key and the setting key are all grounded.

9. The protection against electric shock multiplexed output intelligence switch of claim 8 wherein: still include the WIFI module, the WIFI module is connected with the 29 th foot, the 30 th foot of main control chip.