CN107491003A - A kind of intelligence control system of electric heating quilt, Electric heating mattress and electric heating blanket - Google Patents

Abstract

The invention discloses the intelligence control system of a kind of electric heating quilt, Electric heating mattress and electric heating blanket, including controller, electro-heat equipment, mobile phone and/or Digiplex, it is characterised in that the mobile phone passes through Bluetooth transmission or WIFI and controller two-way communication；The Digiplex passes through wireless network and controller wireless two-way communication；The input termination civil power of the controller, output end sending and receiving thermal；Described controller includes em filtering loop, commutating circuit, main power circuit, idle function circuit and MCU units.Security performance of the present invention is high, and data transfer is efficient rapidly, simple to operate, and interface visual is good, and has idle function.

Description

A kind of intelligence control system of electric heating quilt, Electric heating mattress and electric heating blanket

Technical field

The present invention relates to electric heating bedding, more particularly to the control system of electric heating bedding, specifically a kind of electric heating quilt, electricity The intelligence control system of warm mattress and electric heating blanket.

Background technology

Electric heating bedding is a kind of contact electric heating appliance, and it reaches special insulating properties the soft cable-styled electric heating member of standard Part is woven into disk serpentine or sews up bedding, gives off heat during energization, is mainly used in the temperature in raising quilt during people's sleep To reach heating purpose, it may also be used for bed clothes remove moisture dehumidifying.Conventional electric heating bedding includes electric heating quilt, Electric heating mattress and electric heating Blanket.The traditional electric heating bedding product of in the market is generally heated using 110/220V AC powers, due to heating power supply voltage Higher than the safe voltage of human body（Direct current 36V）, it is easy to produce people dangerous injury in the event of the situation of electric leakage, causes tight The consequence of weight.In addition, the controller of existing electric heating bedding product typically uses solid line handle type key mode, because button is stayed Plate is single, fragile, interface visual is poor, at the same can not carry out live signal detection, without remote control, not possess high-volume anti- The processing function of feedforward information.Its another defect is that each switch all must be manually operated, can not realize intelligent control.

The content of the invention

The present invention is to solve above mentioned problem existing for prior art, it is desirable to provide a kind of electric heating by, Electric heating mattress and The intelligence control system of electric heating blanket.

To solve the above problems, the present invention uses following technical scheme：A kind of intelligence of electric heating quilt, Electric heating mattress and electric heating blanket Energy control system, including controller, electro-heat equipment, mobile phone and/or Digiplex, it is characterised in that the mobile phone passes through bluetooth Transmission or WIFI and controller two-way communication；The Digiplex passes through wireless network and controller wireless two-way communication；Institute State the input termination civil power of controller, output end sending and receiving thermal；Described controller includes em filtering loop, rectification is returned Road, main power circuit, idle function circuit and MCU units.

A kind of electric heating of the present invention is had the advantages that by the intelligence control system of, Electric heating mattress and electric heating blanket：

1）The direct current that 110/220V electric main is transformed to less than 36V is supplied to by electro-heat equipment by controller, makes hair Thermal works under safe voltage state, the injury that people can be avoided to be brought by high pressure electric shock, remote electromagenetic wave radiation, significantly Improve the security performance of this electronic product.

2）Wireless two-way communication is carried out with controller using mobile phone and/or Digiplex, can successfully simplify communication, So that data transfer become it is more rapid efficiently, the simpler convenience of operation, interface visual it is good, electric heating can be detected in real time Quilt, Electric heating mattress, the temperature conditions of electric heating blanket, and feed back and handle the corresponding data of high-volume, control is simpler at a distance Folk prescription just, and mobile phone can by install control APP, directly manipulate controller, and the instruction of any transmission can be shown；In addition, Also crystal display can be carried on Digiplex, the instruction of any transmission can directly display.

3）Idle function circuit keeps low power consumpting state when main power circuit does not work, total without being frequently switched on and off Power supply.

Further, described em filtering loop includes common mode inductance LF1, common mode inductance LF2, common mode inductance LF3, pressure Quick resistance TVR1, thermistor RT1 and electric capacity CX1.

Further, described commutating circuit includes rectifier bridge BD1, electrochemical capacitor EC1, ceramic disc capacitor C1 and ceramic disc capacitor C11。

Further, described main power circuit is adopted including main power conversion circuit, synchronous rectification filter circuit, main power source Sample comparison circuit, main power source pwm control circuit and control loop；The electricity that described main power conversion circuit exports commutating circuit Signal carries out power conversion；Described synchronous rectification filter circuit synchronizes the electric signal that main power conversion circuit exports whole Exported after stream and filtering to load；Described main power source sampling comparison circuit carries out partial pressure sampling, and and benchmark to output voltage Voltage is compared, and pass to main power source pwm control circuit by optocoupler U1 adjusts pwm pulse width to control master come the moment Power conversion circuit regulated output voltage；Described control loop starts idle function circuit, and root after commutating circuit unlatching The opening and closing of main power conversion circuit are controlled according to the output signal of MCU units.

Further, described main power conversion circuit includes main transformer T1, metal-oxide-semiconductor Q1, current-limiting resistance R16, current limliting Resistance R17, diode D1, diode D23, resistance R4, resistance R5, resistance R3 and electric capacity C2, wherein：Diode D1, diode D23, resistance R4, resistance R5, resistance R3 and electric capacity C2 composition RCD absorbing circuits, are prevented when metal-oxide-semiconductor Q1 from turning off by main transformer T1 Caused leakage inductance peak voltage breakdown metal-oxide-semiconductor Q1；Voltage caused by current-limiting resistance R16 and current-limiting resistance R17 is supplied to main electricity Source pwm control circuit collection signal.

Further, described synchronous rectification filter circuit includes output filter capacitor EC6, output filter capacitor EC7, defeated Go out filter capacitor EC8, output filter capacitor EC9, synchronous rectifier Q4, synchronous rectification driving chip IC3 and its peripheral circuit.

Further, described main power source sampling comparison circuit includes voltage-stabiliser tube 431CA, resistance R18, resistance R44, resistance R43, resistance R45, resistance R42, electric capacity C21, electric capacity C34 and optocoupler U1.

Further, described main power source pwm control circuit includes driving chip IC1, is become by detecting main power constantly The feedback signal for changing circuit and main power source sampling comparison circuit produces pwm pulse and determines the main work(of width control system of pwm pulse Rate translation circuit exports burning voltage.

Further, described control loop includes resistance R102, resistance R103, resistance R104, electrochemical capacitor EC4, steady Pressure pipe ZD2, resistance R52, optocoupler U4, triode Q3, voltage-stabiliser tube ZD1, electrochemical capacitor EC12, resistance R53, triode Q30, resistance R54 and resistance R112, wherein：Resistance R102, resistance R103, resistance R104 and voltage-stabiliser tube ZD2 are connected on the output of commutating circuit Between positive voltage terminal and ground, charging voltage is provided for electrochemical capacitor EC4；Optocoupler U4 primary side meets MCU by triode Q30 respectively Unit and machine functional circuit is received by resistance R53, optocoupler U4 secondary connects triode Q3 base stage and pass through electricity respectively Resistance R52 connects triode Q3 colelctor electrode；Voltage-stabiliser tube ZD1 is connected across between triode Q3 base stage and ground；Electrochemical capacitor EC12 across It is connected between triode Q3 emitter stage and ground；Triode Q3 collector voltage is used to drive idle function circuit, triode Q3 emitter voltage is used to drive main power circuit.

Further, described idle function circuit includes accessory power supply power conversion circuit, accessory power supply PWM control electricity Road, accessory power supply current rectifying and wave filtering circuit and accessory power supply sampling comparison circuit；Described accessory power supply power conversion circuit will be whole The electric signal for flowing back to road output carries out power conversion；Described accessory power supply current rectifying and wave filtering circuit is electric by accessory power supply power conversion The electric signal of road output is exported to load after carrying out rectification and filtering；Described accessory power supply samples comparison circuit to output voltage Partial pressure sampling is carried out, and compared with reference voltage, accessory power supply pwm control circuit is passed to by optocoupler U2 and adjusted come the moment Pwm pulse width is saved to control auxiliary power translation circuit regulated output voltage.

Further, described accessory power supply power conversion circuit includes auxiliary transformer T2, current-limiting resistance R105 and limit Leakage resistance R106, diode D6, resistance R21, resistance R22 and electric capacity C12, described diode D6, resistance R21, resistance R22 and Electric capacity C12 form RCD absorbing circuits, prevent accessory power supply pwm control circuit turn off when as caused by auxiliary transformer T2 leakage inductance Voltage breakdown accessory power supply pwm control circuit；Voltage caused by current-limiting resistance R105 and current-limiting resistance R106 is supplied to auxiliary Power supply pwm control circuit gathers signal.

Further, described accessory power supply pwm control circuit leads to including driving chip IC2, described driving chip IC Cross the moment detection accessory power supply power conversion circuit and accessory power supply sampling comparison circuit feedback signal produce pwm pulse and Determine the width control system accessory power supply power conversion circuit output burning voltage of pwm pulse.

Further, described accessory power supply current rectifying and wave filtering circuit includes diode D5, output filter capacitor EC3, inductance L1 and output filter capacitor EC2；When accessory power supply pwm control circuit turns on, diode D5 is in reverse off state, load Energy come from output filter capacitor EC3 and filter capacitor EC2；When accessory power supply pwm control circuit turns off, diode D5 Forward conduction, auxiliary transformer T2 energize to load, while provide energy storage to output filter capacitor EC3 and filter capacitor EC2 Deposit.

Further, described accessory power supply sampling comparison circuit includes voltage-stabiliser tube 431A, resistance R27, resistance R28, electricity Hinder R30, resistance R25, resistance R26, resistance R29, electric capacity C22 and optocoupler U2；Resistance R27, resistance R28 and resistance R30 are to output Voltage carries out partial pressure sampling, using the sampled voltage above resistance R30 compared with voltage-stabiliser tube 431A reference voltage 2.5V, Accessory power supply pwm control circuit is passed to by optocoupler U2 and adjusts regulated output voltage come the moment；Wherein electric capacity C22 and resistance R29 is voltage-stabiliser tube 431CA compensation circuit.

Further, described MCU units include MCU, MCU sample circuit, output loading temperature control circuit, protection circuit and Telecommunication circuit.

Further, described MCU includes MCU chip U3 and peripheral circuit.

Further, described MCU sample circuits comprise at least an operational amplifier U5B, gather output loading temperature control The electric current and voltage signal of circuit, MCU is passed to after amplification.

Further, described output loading temperature control circuit includes triode Q13, triode Q14, triode Q15, MOS Pipe Q17 and resistance R71；Triode Q13 base stage meets MCU；Triode Q14 and triode Q15 base stages and emitter stage are in parallel, and base Pole is connected with triode Q13 colelctor electrode, and transmitting collection is connected to metal-oxide-semiconductor Q17 gate pole；Metal-oxide-semiconductor Q17 drain electrode connects load； MCU controls being turned on and off for metal-oxide-semiconductor Q17 by controlling triode Q13 base voltage, is in load and is powered or breaks Electricity condition.

Further, described output loading temperature control circuit provides power supply by power supply circuit, and described power supply circuit connects together The output end of rectification circuit is walked, the supply voltage needed for output loading temperature control circuit is converted to through DC/DC.

Further, described protection circuit includes hardware protection circuit and software protection circuit；Described hardware protection Voltage signal on circuit collection output loading temperature control circuit, when it reaches reference voltage, cuts off main power conversion circuit；Institute The software protection circuit stated is controlled by MCU, and load circuit is cut off in circuit abnormality.

Brief description of the drawings

Fig. 1 is the structured flowchart of intelligence control system of the present invention.

Fig. 2 is the structured flowchart of controller of the present invention.

Fig. 3 is the way circuit figure of controller of the present invention.

Fig. 4 is the structure chart of em filtering loop of the present invention, commutating circuit and main power circuit.

Fig. 5 is the circuit diagram of control loop of the present invention, idle function circuit and hardware protection circuit.

Fig. 6 is MCU of the present invention structure chart.

Fig. 7 is the structure chart of MCU sample circuits and output loading temperature control circuit of the present invention.

Fig. 8 is the structure chart of idle function circuit and output loading temperature control circuit of the present invention.

Fig. 9 is the structure chart of invention software protection circuit.

Figure 10 is the structure chart of wireless communication line of the present invention.

Figure 11 is the structure chart of bluetooth communication circuit of the present invention.

Embodiment

Reference picture 1, the intelligence control system of a kind of electric heating of the invention quilt, Electric heating mattress and electric heating blanket, including controller, Electro-heat equipment, mobile phone and/or Digiplex, the mobile phone pass through Bluetooth transmission or WIFI and controller two-way communication；It is described Digiplex passes through wireless network and controller radio communication；The input termination civil power of the controller, output end sending and receiving heat Device.

Reference picture 2 and Fig. 3, described controller include em filtering loop, commutating circuit, main power circuit, standby work( Can circuit and MCU units.

Described main power circuit is more electric including main power conversion circuit, synchronous rectification filter circuit, main power source sampling Road, main power source pwm control circuit and control loop；The electric signal that described main power conversion circuit exports commutating circuit is carried out Power conversion；The electric signal that main power conversion circuit exports is synchronized rectification and filtering by described synchronous rectification filter circuit After export to load；Described main power source sampling comparison circuit carries out partial pressure sampling to output voltage, and is carried out with reference voltage Compare, pass to main power source pwm control circuit by optocoupler U1 adjusts pwm pulse width to control main power conversion come the moment Circuit stability output voltage；Described control loop starts idle function circuit after commutating circuit unlatching, and according to MCU units Output signal control the opening and closing of main power conversion circuit.

Described idle function circuit includes accessory power supply power conversion circuit, accessory power supply pwm control circuit, auxiliary electricity Source current rectifying and wave filtering circuit and accessory power supply sampling comparison circuit；Described accessory power supply power conversion circuit exports commutating circuit Electric signal carry out power conversion；The electricity that described accessory power supply current rectifying and wave filtering circuit exports accessory power supply power conversion circuit Signal is exported to load after carrying out rectification and filtering；Described accessory power supply sampling comparison circuit carries out partial pressure to output voltage and adopted Sample, and compared with reference voltage, accessory power supply pwm control circuit is passed to by optocoupler U2 and adjusts pwm pulse come the moment Width is to control auxiliary power translation circuit regulated output voltage.

Described MCU units include MCU, MCU sample circuit, output loading temperature control circuit, protection circuit and telecommunication circuit. Described protection circuit includes hardware protection circuit and software protection circuit；Described hardware protection circuit collection output loading temperature The voltage signal on circuit is controlled, when it reaches reference voltage, cuts off main power conversion circuit；Described software protection circuit by Control in MCU, load circuit is cut off in circuit abnormality.Described telecommunication circuit includes wireless communication line and bluetooth communication electricity Road.

Reference picture 4, described em filtering loop include common mode inductance LF1, common mode inductance LF2, common mode inductance LF3, pressure Quick resistance TVR1, thermistor RT1 and electric capacity CX1.Controller possesses good EMC performances, effectively suppresses harmonic wave and noise And the surge current and instant high-voltage of booting moment.

Described commutating circuit includes rectifier bridge BD1, electrochemical capacitor EC1, ceramic disc capacitor C1 and ceramic disc capacitor C11.It is led It is that input AC electricity is changed into galvanic current to want function.

Described main power conversion circuit includes main transformer T1, metal-oxide-semiconductor Q1, current-limiting resistance R16, current-limiting resistance R17, two Pole pipe D1, diode D23, resistance R4, resistance R5, resistance R3 and electric capacity C2.When metal-oxide-semiconductor Q1 is turned on, high current can pass through electricity Solution electric capacity EC1 flows through main transformer T1, metal-oxide-semiconductor Q1, resistance R16 and R17, and now electric energy can be converted to Magnetic Energy Storage in main transformer pressure Inside device T1, when metal-oxide-semiconductor Q1 is turned off, magnetic energy is converted to electric energy and gives synchronous rectification filter circuit.Wherein：Diode D1, two poles Pipe D23, resistance R4, resistance R5, resistance R3 and electric capacity C2 composition RCD absorbing circuits, are prevented when metal-oxide-semiconductor Q1 from turning off by main transformer Leakage inductance peak voltage breakdown metal-oxide-semiconductor Q1 caused by T1；The electric current for flowing through metal-oxide-semiconductor Q1 can be in current-limiting resistance R16 and current-limiting resistance R17 Upper generation voltage, there is provided gather signal to main power source pwm control circuit.

Main transformer T1 major function is mutual conversion between electric energy and magnetic energy, energy storage, primary and secondary side Isolation and energy transmission.

Described synchronous rectification filter circuit includes output filter capacitor EC6, output filter capacitor EC7, output filtered electrical Hold EC8, output filter capacitor EC9, synchronous rectifier Q4, synchronous rectification driving chip IC3 and its peripheral circuit.Synchronous rectification is driven Dynamic chip IC 3 uses FAN6204.When metal-oxide-semiconductor Q1 is turned on, because synchronous rectification driving chip IC3 does not drive synchronous rectification Pipe Q4, synchronous rectifier Q4 are off state, so when the energy that loads come from output filter capacitor EC6, EC7, EC8 and EC9；When metal-oxide-semiconductor Q1 is turned off, synchronous rectification driving chip IC3 driving synchronous rectifier Q4, synchronous rectifier Q4 conductings, now Main transformer T1 energizes to load, while provides energy storage to output filter capacitor EC6, EC7, EC8 and EC9.

Described main power source sampling comparison circuit includes voltage-stabiliser tube 431CA, resistance R18, resistance R44, resistance R43, resistance R45, resistance R42, electric capacity C21, electric capacity C34 and optocoupler U1.After resistance R43 and resistance R44 parallel connections output is connected on resistance R45 Between positive voltage terminal V0+ and ground, partial pressure sampling is carried out to output voltage V0+, utilizes the sampled voltage above resistance R45 and voltage stabilizing Pipe 431CA reference voltage 2.5V is compared, and pass to main power source pwm control circuit by optocoupler U1 adjusts PWM come the moment Pulse width is in order to stabilize output voltage.Wherein electric capacity C21, resistance R42, the feedback compensation electricity that electric capacity C34 is voltage-stabiliser tube 431CA Road.

Optocoupler U1 uses EL1019 or EL817, and effect in this mainly passes main transformer T1 secondary side feedback signal Primary side is passed, while plays a part of the former secondary of isolation.

Described main power source pwm control circuit includes driving chip IC1 and resistance R9, resistance R10, resistance R 31, resistance R 13rd, the peripheral circuit that the element such as diode D4, triode Q9 and resistance R14 is formed.Driving chip IC1 uses NCP1380.Main work( Voltage on the current-limiting resistance R16 and R17 of rate translation circuit acts on driving chip IC1 CS pin, optocoupler U1 by resistance R9 Original edge voltage acts on driving chip IC1 FB pin by resistance R10, and such driving chip IC1 can detect main transformer pressure constantly The signal of device T1 primary and secondary sides, produce pwm pulse and determine the width of pwm pulse, pass through resistance R31, resistance R13 and two Pole pipe D4 drives metal-oxide-semiconductor Q1, controls main power conversion circuit output burning voltage.Triode Q9 can accelerate metal-oxide-semiconductor Q1's Turn-off speed, resistance R14 provide metering function for triode Q9.

Reference picture 5, described control loop include resistance R102, resistance R103, resistance R104, electrochemical capacitor EC4, voltage stabilizing Pipe ZD2, resistance R52, optocoupler U4, triode Q3, voltage-stabiliser tube ZD1, electrochemical capacitor EC12, resistance R53, triode Q30, resistance R54 and resistance R112.Wherein：Resistance R102, resistance R103, resistance R104 and voltage-stabiliser tube ZD2 are connected on the output of commutating circuit Positive voltage terminal（And the input voltage anode of main transformer T1 primary sides）Between Vin and ground, charging electricity is provided for electrochemical capacitor EC4 Pressure.

Optocoupler U4 primary side one end connects MCU units by triode Q30, and the other end connects idle function electricity by resistance R53 The output end P1 on road.Optocoupler U4 secondary one terminates triode Q3 base stage, and the other end connects triode Q3 collection by resistance R52 Electrode；Voltage-stabiliser tube ZD1 is connected across between triode Q3 base stage and ground.Electrochemical capacitor EC12 is connected across triode Q3 emitter stage Between ground.Triode Q3 collector voltage VCC1 is electrochemical capacitor EC4 positive terminal voltage, for driving idle function electric Road.Triode Q3 emitter voltage VCC2 is used for the driving chip IC1 for driving main circuit power pwm control circuit, so as to control The opening and closing of main power circuit processed.

Its operation principle is：Vin is charged by resistance R102, resistance R103 and resistance R104 to electrochemical capacitor EC4, VCC1 Voltage is begun to ramp up, and the driving chip IC2 of accessory power supply pwm control circuit is started working, and starts idle function circuit, and startup is treated The voltage output end P1 of machine functional circuit is powered by resistance R53 to optocoupler U4, when MCU chip U3 18 pin（SLEEP）To electricity When the voltage for hindering R54 is high level, triode Q30 will be turned on, and light the diode inside optocoupler U4, and now VCC1 will Powered by triode Q3 to VCC2, main circuit power pwm control circuit can just start working.When controller is in Light Condition When, MCU chip U3 18 pin（SLEEP）Voltage to resistance R54 is low level, drags down triode Q30 base voltages, and then VCC1 provides no voltage to VCC2, closes main power conversion circuit, only idle function circuit still in working condition, so as to Reduce the stand-by power consumption of controller.

According to MCU chip U3 output signal, primary side master mainly is controlled by secondary circuit for optocoupler U3 effects in this Power supply pwm control circuit, while play a part of the former secondary of isolation.

Described accessory power supply power conversion circuit includes auxiliary transformer T2, current-limiting resistance R105 and current-limiting resistance R106, diode D6, resistance R21, resistance R22 and electric capacity C12.As the driving chip IC2 of accessory power supply pwm control circuit 5, When 6 pin turn on, high current can flow through auxiliary transformer T2, driving chip IC2, resistance R105 and resistance by electrochemical capacitor EC1 R106, now electric energy can be converted to Magnetic Energy Storage inside auxiliary transformer T2, during the shut-off of 5,6 pin as driving chip IC2, magnetic Electric energy can be converted to and give accessory power supply current rectifying and wave filtering circuit.

Described diode D6, resistance R21, resistance R22 and electric capacity C12 composition RCD absorbing circuits, prevents driving chip IC2 5,6 pin shut-off when as caused by auxiliary transformer T2 leakage inductance voltage breakdown driving chip IC2；Current-limiting resistance R105 and limit Leakage resistance R106 forms current-limiting circuit, and certain electricity can be produced on current-limiting resistance by flowing through the electric current of driving chip IC2 5,6 pin Pressure, so that accessory power supply pwm control circuit gathers signal.

Described accessory power supply pwm control circuit includes driving chip IC2 and peripheral circuits, described driving chip IC2 Using OB2334AP, current-limiting resistance R105 and current-limiting resistance R106 voltage signal are detected by the CS pin moment, during by FB pin The signal that the optocoupler U2 of detection accessory power supply sampling comparison circuit is fed back is carved, pwm pulse is produced and determines pwm pulse Width, so as to control accessory power supply power conversion circuit to export burning voltage.

Described accessory power supply current rectifying and wave filtering circuit includes diode D5, output filter capacitor EC3, inductance L1 and output filter Ripple electric capacity EC2；When driving chip IC2 is turned on, diode D5 is in reverse off state, and the energy of load comes from output filter Ripple electric capacity EC3 and output filter capacitor EC2；When driving chip IC2 is turned off, diode D5 forward conductions, auxiliary transformer T2 Energized to load, while energy storage is provided to output filter capacitor EC3 and output filter capacitor EC2.

Described accessory power supply sampling comparison circuit includes voltage-stabiliser tube 431A, resistance R27, resistance R28, resistance R30, resistance R25, resistance R26, resistance R29, electric capacity C22 and optocoupler U2；Resistance R27, resistance R28 and resistance R30 divide output voltage Pressure sampling, using the sampled voltage above resistance R30 compared with voltage-stabiliser tube 431A reference voltage 2.5V, passes through optocoupler U2 Pass to accessory power supply pwm control circuit and carry out moment regulation regulated output voltage；Wherein electric capacity C22 and resistance R29 is voltage-stabiliser tube 431CA compensation circuit.

Optocoupler U2 uses EL1019 or EL817, and auxiliary transformer T2 secondary side feedback signal mainly is passed into primary side, Play a part of the former secondary of isolation simultaneously.

Described MCU units include MCU, MCU sample circuit, output loading temperature control circuit, protection circuit and telecommunication circuit.

Reference picture 6, described MCU include MCU chip U3 and peripheral circuit, sampled by peripheral circuit, and carry out Internal arithmetic and the data of output.Using STM8S005K6T6C.

Reference picture 7, described MCU sample circuits can be arranged to according to the heater element quantity of electro-heat equipment one, two Individual or multiple circuits.By the combination on or off of different heat unit, different temperature gears can adjust out.Each heating The corresponding MCU sample circuit of element and an output loading temperature control circuit.In the present embodiment, MCU sample circuits are two It is individual.Wherein, the first MCU sample circuits include an operational amplifier U5B and its peripheral circuits, operational amplifier U5B input Anode gathers the electric current and voltage signal of the first output loading temperature control circuit, and MCU chip U3 ADC I2 pin are passed to after amplification, MCU chip U3 according to the data sampled, can calculate the PWM1 of output loading temperature control circuit pulse width.

2nd MCU sample circuits include an operational amplifier U5A and its peripheral circuits, operational amplifier U5A input Anode gathers the electric current and voltage signal of the second output loading temperature control circuit, and MCU chip U3 ADC I1 pin are passed to after amplification, MCU chip U3 according to the data sampled, can calculate the PWM2 of output loading temperature control circuit pulse width.

Operational amplifier U5A and U5B use LM258.

Described output loading temperature control circuit corresponds with MCU sample circuits, is also two in the present embodiment.First Output loading temperature control circuit includes triode Q13, triode Q14, triode Q15, metal-oxide-semiconductor Q17 and resistance R71.Triode Q13 Base stage connect MCU chip U3 PWM1 output pins, and first order amplification is carried out to PWM1 signals.Triode Q14 and triode Q15 Base stage and emitter stage composition multiple tube in parallel, second level amplification is carried out to PWM1 signals, is passed through and is launched collection control metal-oxide-semiconductor Q17's Gate pole.Metal-oxide-semiconductor Q17 drain electrode connects the first load, and source electrode is grounded by resistance R71.When MCU chip U3 to PWM1 signal for height During level, triode Q13 c, e will be turned on, and triode Q14 base voltage will drag down, and now metal-oxide-semiconductor Q17 is without height Level driver, it is closed, the first load will not access circuit；When MCU chip U3 is low level to PWM1 signal, Triode Q13 by c, e will turn on, triode Q14 base voltage will be drawn high, now metal-oxide-semiconductor Q17 due to high level drive Dynamic, in the conduction state, the first load will access circuit.

The structure and the course of work of second output loading temperature control circuit are same, and MCU chip U3 is controlled by PWM2 signals The disconnection and access of second load.

Reference picture 8, described output loading temperature control circuit provide power supply by a power supply circuit.Described power supply circuit bag Include diode D9, input electrochemical capacitor EC10, triode Q2, resistance R35, voltage-stabiliser tube ZD3, input electrochemical capacitor EC11 and Output capacitance C19.The output end voltage V0+ of circuit of synchronous rectification is converted to 15V magnitudes of voltage by power supply circuit through DC/DC, is exported To the supply voltage needed for load temperature control circuit.Wherein, resistance R35 is connected across between triode Q2 base stage and colelctor electrode, is given Triode Q2 provides base voltage, while plays negative feedback.Voltage-stabiliser tube ZD3 is connected on triode Q2 base stage and ground Between, forward voltage between e, b for stablizing triode Q2, when DC voltage is more than voltage-stabiliser tube ZD3 voltage stabilizing value between e, b, Influence of the too high interference signal of base stage to circuit can have been prevented by voltage-stabiliser tube ZD3 clampers in voltage stabilizing value.

Reference picture 9, described software protection circuit include triode Q20 and its base resistance R63, triode Q8 and its base Electrode resistance R60, triode Q6 and its base resistance R58, triode Q7 and its base resistance R59.When change is freeed in load（Such as Unloaded, overload and other various abnormal operating states）, the operational amplifier U5A or U5B of MCU sample circuits will be collected Data be sent to MCU chip U3, MCU chip U3 19 pin（PULSE）Will transmission level give triode Q20, and pass through three Pole pipe Q6 and triode Q7, triode Q6 colelctor electrode（PRO1）Triode Q11 base stage is controlled, and then determines MOS Pipe Q16 shut-off, cut off the second load circuit.Similarly, triode Q7 colelctor electrode（PRO2）Triode Q14 base stage is carried out Control, and then metal-oxide-semiconductor Q17 shut-off is determined, cut off the first load circuit.

Reference picture 5, the protection circuit of MCU units also include a hardware protection circuit.Described hardware protection circuit master To include voltage-stabiliser tube 431B, triode Q30, operational amplifier chip IC4 and its peripheral circuit.Using LM258.Resistance R37, electricity Hinder R38, resistance R36, resistance R46, resistance R39 and voltage-stabiliser tube 431B and provide stable reference voltage to operational amplifier chip IC4 2 pin and 6 pin.Because operational amplifier chip IC4 3 pin and 5 pin are negative to exporting by resistance R48 and resistance R51 moment Carry the resistance R71 of temperature control circuit（That is the sampling end I1 of the 2nd MCU sample circuits）With resistance R67（That is the first MCU sample circuits Sampling end I2）Voltage above is sampled, when there are overload situations（Output current reaches to a certain degree）If sampling Voltage reaches operational amplifier chip IC4 2 pin and the reference voltage of 6 pin, and operational amplifier chip IC4 will pass through 1 pin and 7 Pin exports high level and gives triode Q5, and now triode Q30 base stage will be pulled low, and optocoupler U4 light emitting diode will be disconnected Open, then VCC2 does not produce voltage, and driving chip IC2 is stopped, and main power source pwm control circuit will also be stopped, so as to Cut off main power circuit.

Reference picture 10, wireless communication line of the present invention, including wireless chip U6 and peripheral circuit, described wireless chip U6 Using CC1101.

Reference picture 11, bluetooth communication circuit of the present invention, including Bluetooth chip U7 and peripheral circuit, described Bluetooth chip U7 Using NRF51822.

Mobile phone can also include WIFI chips and peripheral circuit by WIFI and controller two-way communication, WIFI circuits, WIFI chips use ESP8266, and peripheral circuit uses standard application circuit.

A kind of electric heating of the present invention is as follows by the intelligence control system of, Electric heating mattress and electric heating blanket, its operation principle：

1）Mobile phone and/or Digiplex send unlatching, shut-off or the instruction for entering holding state to controller, can also set Various parameters or mode of operation, and running status and running parameter can be shown on screen.

2）After energization, electric main is filtered and exported with after rectification to main power source by em filtering loop and commutating circuit Circuit and idle function circuit, load access circuit, electro-heat equipment produce heat after being powered under safe dc voltage and got into bed Tool.

3）When without using bedding（Such as daytime）, main power circuit closing, idle function circuit is still in working condition.By In the power very little of idle function circuit（About 0.5W）Obvious power consumption thus will not be produced.Holding state can pass through wireless remote Control device or mobile phone are controlled manually, can also preset timing function, after the time of setting is reached, shut-off main power source electricity Road.In addition, idle function circuit also has circuit protection function, when there are abnormal conditions（As overload, temperature are too high, overall Or partial load mismatches）Cut off main power circuit.

It is to be understood that：Above-described embodiment is the description of the invention, rather than limitation of the present invention, any Without departing from the innovation and creation in the range of true spirit, each fall within protection scope of the present invention.

Claims (20)

1. a kind of electric heating is by the intelligence control system of, Electric heating mattress and electric heating blanket, including controller, electro-heat equipment, mobile phone and/or Digiplex, it is characterised in that the mobile phone passes through Bluetooth transmission or WIFI and controller two-way communication；The wireless remote control Device passes through wireless network and controller wireless two-way communication；The input termination civil power of the controller, output end sending and receiving thermal； Described controller includes em filtering loop, commutating circuit, main power circuit, idle function circuit and MCU units.

2. the intelligence control system of a kind of electric heating quilt as claimed in claim 1, Electric heating mattress and electric heating blanket, it is characterised in that institute The em filtering loop stated includes common mode inductance LF1, common mode inductance LF2, common mode inductance LF3, piezo-resistance TVR1, thermistor RT1 and electric capacity CX1.

3. the intelligence control system of a kind of electric heating quilt as claimed in claim 1, Electric heating mattress and electric heating blanket, it is characterised in that institute The commutating circuit stated includes rectifier bridge BD1, electrochemical capacitor EC1, ceramic disc capacitor C1 and ceramic disc capacitor C11.

4. the intelligence control system of a kind of electric heating quilt as claimed in claim 1, Electric heating mattress and electric heating blanket, it is characterised in that institute The main power circuit stated includes main power conversion circuit, synchronous rectification filter circuit, main power source sampling comparison circuit, main power source Pwm control circuit and control loop；The electric signal that described main power conversion circuit exports commutating circuit carries out power conversion； Described synchronous rectification filter circuit by the electric signal that main power conversion circuit exports synchronize rectification and filtering after export to Load；Described main power source sampling comparison circuit carries out partial pressure sampling to output voltage, and compared with reference voltage, passes through Optocoupler U1 passes to main power source pwm control circuit and carrys out moment regulation pwm pulse width to control main power conversion circuit stable Output voltage；Described control loop starts idle function circuit after commutating circuit unlatching, and is believed according to the output of MCU units The opening and closing of number main power conversion circuit of control.

5. the intelligence control system of a kind of electric heating quilt as claimed in claim 4, Electric heating mattress and electric heating blanket, it is characterised in that institute The main power conversion circuit stated includes main transformer T1, metal-oxide-semiconductor Q1, current-limiting resistance R16, current-limiting resistance R17, diode D1, two Pole pipe D23, resistance R4, resistance R5, resistance R3 and electric capacity C2, wherein：Diode D1, diode D23, resistance R4, resistance R5, electricity R3 and electric capacity C2 composition RCD absorbing circuits are hindered, prevent that the leakage inductance peak voltage as caused by main transformer T1 is hit when metal-oxide-semiconductor Q1 from turning off Wear metal-oxide-semiconductor Q1；Voltage caused by current-limiting resistance R16 and current-limiting resistance R17 is supplied to main power source pwm control circuit collection letter Number.

6. the intelligence control system of a kind of electric heating quilt as claimed in claim 4, Electric heating mattress and electric heating blanket, it is characterised in that institute The synchronous rectification filter circuit stated includes output filter capacitor EC6, output filter capacitor EC7, output filter capacitor EC8, output Filter capacitor EC9, synchronous rectification driving chip IC3 and synchronous rectifier Q4.

7. the intelligence control system of a kind of electric heating quilt as claimed in claim 4, Electric heating mattress and electric heating blanket, it is characterised in that institute The main power source sampling comparison circuit stated includes voltage-stabiliser tube 431CA, resistance R18, resistance R44, resistance R43, resistance R45, resistance R42, electric capacity C21, electric capacity C34 and optocoupler U1.

8. the intelligence control system of a kind of electric heating quilt as claimed in claim 4, Electric heating mattress and electric heating blanket, it is characterised in that institute The main power source pwm control circuit stated includes driving chip IC1, and ratio is sampled by detecting main power conversion circuit and main power source constantly Feedback signal compared with circuit produces pwm pulse and determines the main stable electricity of power conversion circuit output of width control system of pwm pulse Pressure.

9. the intelligence control system of a kind of electric heating quilt as claimed in claim 4, Electric heating mattress and electric heating blanket, it is characterised in that institute The control loop stated includes resistance R102, resistance R103, resistance R104, electrochemical capacitor EC4, voltage-stabiliser tube ZD2, resistance R52, optocoupler U4, triode Q3, voltage-stabiliser tube ZD1, electrochemical capacitor EC12, resistance R53, triode Q30, resistance R54 and resistance R112, wherein： Resistance R102, resistance R103, resistance R104 and voltage-stabiliser tube ZD2 are connected between the output voltage anode of commutating circuit and ground, are Electrochemical capacitor EC4 provides charging voltage；Optocoupler U4 primary side connects MCU units and by resistance R53 by triode Q30 respectively Reception machine functional circuit, optocoupler U4 secondary connect triode Q3 base stage and triode Q3 collection are connect by resistance R52 respectively Electrode；Voltage-stabiliser tube ZD1 is connected across between triode Q3 base stage and ground；Electrochemical capacitor EC12 is connected across triode Q3 emitter stage Between ground；Triode Q3 collector voltage is used to drive idle function circuit, and triode Q3 emitter voltage is used to drive Dynamic main power circuit.

10. the intelligence control system of a kind of electric heating quilt as claimed in claim 1, Electric heating mattress and electric heating blanket, it is characterised in that Described idle function circuit includes accessory power supply power conversion circuit, accessory power supply pwm control circuit, accessory power supply rectification filter Wave circuit and accessory power supply sampling comparison circuit；The electric signal that described accessory power supply power conversion circuit exports commutating circuit Carry out power conversion；The electric signal that described accessory power supply current rectifying and wave filtering circuit exports accessory power supply power conversion circuit is carried out Exported after rectification and filtering to load；Described accessory power supply samples comparison circuit to output voltage progress partial pressure sampling, and with Reference voltage is compared, by optocoupler U2 pass to accessory power supply pwm control circuit come the moment adjust pwm pulse width so as to Control auxiliary power translation circuit regulated output voltage.

11. the intelligence control system of a kind of electric heating quilt as claimed in claim 10, Electric heating mattress and electric heating blanket, it is characterised in that Described accessory power supply power conversion circuit includes auxiliary transformer T2, current-limiting resistance R105 and current-limiting resistance R106, diode D6, resistance R21, resistance R22 and electric capacity C12, described diode D6, resistance R21, resistance R22 and electric capacity C12 compositions RCD inhale Receive circuit, prevent accessory power supply pwm control circuit turn off when as caused by auxiliary transformer T2 leakage inductance voltage breakdown accessory power supply Pwm control circuit；Voltage caused by current-limiting resistance R105 and current-limiting resistance R106 is supplied to accessory power supply pwm control circuit to adopt Collect signal.

12. the intelligence control system of a kind of electric heating quilt as claimed in claim 10, Electric heating mattress and electric heating blanket, it is characterised in that Described accessory power supply pwm control circuit includes driving chip IC2, described driving chip IC2 by detecting auxiliary electricity constantly The feedback signal of source power translation circuit and accessory power supply sampling comparison circuit produces pwm pulse and determines the width of pwm pulse Degree control accessory power supply power conversion circuit output burning voltage.

13. the intelligence control system of a kind of electric heating quilt as claimed in claim 10, Electric heating mattress and electric heating blanket, it is characterised in that Described accessory power supply current rectifying and wave filtering circuit includes diode D5, output filter capacitor EC3, inductance L1 and output filter capacitor EC2；When accessory power supply pwm control circuit turns on, diode D5 is in reverse off state, and the energy of load comes from output Filter capacitor EC3 and filter capacitor EC2；When accessory power supply pwm control circuit turns off, diode D5 forward conductions, auxiliary becomes Depressor T2 energizes to load, while provides energy storage to output filter capacitor EC3 and filter capacitor EC2.

14. the intelligence control system of a kind of electric heating quilt as claimed in claim 10, Electric heating mattress and electric heating blanket, it is characterised in that Described accessory power supply sampling comparison circuit includes voltage-stabiliser tube 431A, resistance R27, resistance R28, resistance R30, resistance R25, resistance R26, resistance R29, electric capacity C22 and optocoupler U2；Resistance R27, resistance R28 and resistance R30 carry out partial pressure sampling, profit to output voltage With the sampled voltage above resistance R30 compared with voltage-stabiliser tube 431A reference voltage 2.5V, passed to by optocoupler U2 auxiliary Power supply pwm control circuit is helped to carry out moment regulation regulated output voltage；Wherein electric capacity C22 and resistance R29 is voltage-stabiliser tube 431CA benefit Repay circuit.

15. the intelligence control system of a kind of electric heating quilt, Electric heating mattress and electric heating blanket as described in claim 1-14 any one, It is characterized in that described MCU units include MCU, MCU sample circuit, output loading temperature control circuit, protection circuit and communication electricity Road.

16. the intelligence control system of a kind of electric heating quilt as claimed in claim 15, Electric heating mattress and electric heating blanket, it is characterised in that Described MCU includes MCU chip U3 and peripheral circuit.

17. the intelligence control system of a kind of electric heating quilt as claimed in claim 15, Electric heating mattress and electric heating blanket, it is characterised in that Described MCU sample circuits comprise at least an operational amplifier U5B, gather the electric current and voltage letter of output loading temperature control circuit Number, MCU is passed to after amplification.

18. the intelligence control system of a kind of electric heating quilt as claimed in claim 15, Electric heating mattress and electric heating blanket, it is characterised in that Described output loading temperature control circuit includes triode Q13, triode Q14, triode Q15, metal-oxide-semiconductor Q17 and resistance R71；Three Pole pipe Q13 base stage meets MCU；Triode Q14 and triode Q15 base stages and emitter stage are in parallel, and base stage and triode Q13 collection Electrode is connected, and transmitting collection is connected to metal-oxide-semiconductor Q17 gate pole；Metal-oxide-semiconductor Q17 drain electrode connects load；MCU is by controlling triode Q13 base voltage makes load be in energization or off-position so as to control being turned on and off for metal-oxide-semiconductor Q17.

19. the intelligence control system of a kind of electric heating quilt as claimed in claim 18, Electric heating mattress and electric heating blanket, it is characterised in that Described output loading temperature control circuit provides power supply by power supply circuit, and described power supply circuit connects the output of circuit of synchronous rectification End, the supply voltage needed for output loading temperature control circuit is converted to through DC/DC.

20. the intelligence control system of a kind of electric heating quilt as claimed in claim 15, Electric heating mattress and electric heating blanket, it is characterised in that Described protection circuit includes hardware protection circuit and software protection circuit；Described hardware protection circuit collection output loading temperature The voltage signal on circuit is controlled, when it reaches reference voltage, cuts off main power conversion circuit；Described software protection circuit by Control in MCU, load circuit is cut off in circuit abnormality.