CN207424575U - A kind of intelligence control system of electric heating quilt, Electric heating mattress and electric heating blanket - Google Patents

Abstract

The utility model discloses the intelligence control system of a kind of electric heating quilt, Electric heating mattress and electric heating blanket, including controller, heat generating device, 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 alternating current of the controller, output terminal sending and receiving thermal；The controller includes em filtering circuit, commutating circuit, main power circuit, idle function circuit and MCU units.The utility model security performance is high, and data transmission 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 utility model is related to the control system of electric heating bedding more particularly to electric heating bedding, specifically a kind of electric heating The intelligence control system of quilt, Electric heating mattress and electric heating blanket.

Background technology

Electric heating bedding is a kind of contact electric heating appliance, and special insulation performance is reached the soft cable-styled electric heating member of standard by it Part is woven into disk serpentine or sews up bedding, and when energization gives off heat, and is mainly used for the temperature in raising quilt during people's sleep To reach heating purpose, it may also be used for bedding removes moisture dehumidifying.Common electric heating bedding includes electric heating quilt, Electric heating mattress and electric heating Blanket.Traditional electric heating bedding product is generally heated using 110/220V AC powers in the market, due to heating power supply voltage Higher than the safe voltage of human body（Direct current 36V）, it is easy to generate 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 generally uses solid line handle type key mode, since button is stayed Plate is single, fragile, interface visual is poor, at the same cannot 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 must all be manually operated, and can not realize intelligent control.

The content of the invention

To be solved in the utility model is the above problem existing in the prior art, it is desirable to provide a kind of electric heating by, it is electrothermic bed The intelligence control system of pad and electric heating blanket.

To solve the above problems, the utility model uses following technical scheme：A kind of electric heating quilt, Electric heating mattress and electric heating blanket Intelligence control system, including controller, heat generating device, 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 is led to by wireless network and controller wireless two-way Letter；The input termination alternating current of the controller, output terminal sending and receiving thermal；The controller includes em filtering circuit, whole Flow back to road, main power circuit, idle function circuit and MCU units.

A kind of electric heating of the utility model is had below beneficial to effect by the intelligence control system of, Electric heating mattress and electric heating blanket Fruit：

1）The direct current that the electric main of 110/220V is transformed to less than 36V is supplied to by heat generating device by controller, Heat generating device is made to work under safe voltage state, the injury that can be brought to avoid people by high pressure electric shock, separate electromagenetic wave radiation, Substantially increase 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 transmission 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 can show the instruction of any transmission；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, the em filtering circuit includes common mode inductance LF1, common mode inductance LF2, common mode inductance LF3, pressure Quick resistance TVR1, thermistor RT1 and capacitance CX1.

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

Further, the 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 the main power conversion circuit exports commutating circuit Signal carries out power conversion；The synchronous rectification filter circuit synchronizes the electric signal that main power conversion circuit exports whole It is exported after stream and filtering to load；The main power source sampling comparison circuit carries out output voltage partial pressure sampling, and and benchmark 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 stabilizes the output voltage；The 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, the 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 capacitance C2, wherein：Diode D1, diode D23, resistance R4, resistance R5, resistance R3 and capacitance C2 composition RCD absorbing circuits, prevent when metal-oxide-semiconductor Q1 from turning off by main transformer T1 The leakage inductance peak voltage breakdown metal-oxide-semiconductor Q1 of generation；The voltage generated on current-limiting resistance R16 and current-limiting resistance R17 is supplied to main electricity Source pwm control circuit acquisition signal.

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

Further, the 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 generates pwm pulse and determines that the width of pwm pulse controls main work( Rate translation circuit exports burning voltage.

Further, the control loop includes resistance R102, resistance R103, resistance R104, electrolytic capacitor EC4, steady Pressure pipe ZD2, resistance R52, optocoupler U4, triode Q3, voltage-stabiliser tube ZD1, electrolytic 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 electrolytic capacitor EC4；The primary side of optocoupler U4 meets MCU by triode Q30 respectively Unit and machine functional circuit is received by resistance R53, the secondary of optocoupler U4 connects the base stage of triode Q3 and pass through electricity respectively Resistance R52 connects the collector of triode Q3；Voltage-stabiliser tube ZD1 is connected across between base stage and the ground of triode Q3；Electrolytic capacitor EC12 across It is connected between the emitter and ground of triode Q3；The collector voltage of triode Q3 is used to drive idle function circuit, triode The emitter voltage of Q3 is used to drive main power circuit.

Further, the 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；The accessory power supply power conversion circuit will be whole The electric signal for flowing back to road output carries out power conversion；The 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 after carrying out rectification and filtering to load；The 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 come moment tune by optocoupler U2 Pwm pulse width is saved so that auxiliary power translation circuit is controlled to stabilize the output voltage.

Further, the 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 capacitance C12, the diode D6, resistance R21, resistance R22 and Capacitance C12 forms RCD absorbing circuits, the leakage inductance generated when preventing accessory power supply pwm control circuit from turning off by auxiliary transformer T2 Voltage breakdown accessory power supply pwm control circuit；The voltage generated on current-limiting resistance R105 and current-limiting resistance R106 is supplied to auxiliary Power supply pwm control circuit gathers signal.

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

Further, the 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 reversed 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 are energized to load, while provide energy storage to output filter capacitor EC3 and filter capacitor EC2 It deposits.

Further, accessory power supply sampling comparison circuit includes voltage-stabiliser tube 431A, resistance R27, resistance R28, electricity Hinder R30, resistance R25, resistance R26, resistance R29, capacitance 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 the reference voltage 2.5V of voltage-stabiliser tube 431A, Accessory power supply pwm control circuit is passed to by optocoupler U2 to stabilize the output voltage come moment adjusting；Wherein capacitance C22 and resistance R29 is the compensation circuit of voltage-stabiliser tube 431CA.

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

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

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

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

Further, the protection circuit includes hardware protection circuit and software protection circuit；The hardware protection Voltage signal on circuit acquisition 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.

Description of the drawings

Fig. 1 is the structure diagram of the utility model intelligence control system.

Fig. 2 is the structure diagram of the utility model controller.

Fig. 3 is the way circuit figure of the utility model controller.

Fig. 4 is the structure chart of the utility model em filtering circuit, commutating circuit and main power circuit.

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

Fig. 6 is the structure chart of the utility model MCU.

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

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

Fig. 9 is the structure chart of the utility model software protection circuit.

Figure 10 is the structure chart of the utility model wireless communication line.

Figure 11 is the structure chart of the utility model bluetooth communication circuit.

Specific embodiment

With reference to Fig. 1, a kind of electric heating of the utility model is by the intelligence control system of, Electric heating mattress and electric heating blanket, including control Device processed, heat generating device, mobile phone and/or Digiplex, the mobile phone pass through Bluetooth transmission or WIFI and controller two-way communication； The Digiplex passes through wireless network and controller wireless communication；The input termination alternating current of the controller, output termination Heat generating device.

With reference to Fig. 2 and Fig. 3, the controller includes em filtering circuit, commutating circuit, main power circuit, standby work( It can circuit and MCU units.

The 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 the main power conversion circuit exports commutating circuit carries out Power conversion；The electric signal that main power conversion circuit exports is synchronized rectification and filtering by the synchronous rectification filter circuit After export to load；The main power source sampling comparison circuit carries out output voltage partial pressure sampling, 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；The 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.

The 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；The accessory power supply power conversion circuit exports commutating circuit Electric signal carry out power conversion；The electricity that the accessory power supply current rectifying and wave filtering circuit exports accessory power supply power conversion circuit Signal is exported after carrying out rectification and filtering to load；The accessory power supply sampling comparison circuit carries out output voltage partial pressure and adopts 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 to stabilize the output voltage.

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

With reference to Fig. 4, the em filtering circuit includes common mode inductance LF1, common mode inductance LF2, common mode inductance LF3, pressure Quick resistance TVR1, thermistor RT1 and capacitance CX1.Controller possesses good EMC performances, effectively inhibits harmonic wave and noise And the surge current and instant high-voltage of booting moment.

The commutating circuit includes rectifier bridge BD1, electrolytic capacitor EC1, ceramic disc capacitor C1 and ceramic disc capacitor C11.It is led It is that input AC electricity is become stable DC to want function.

The 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 capacitance C2.When metal-oxide-semiconductor Q1 is turned on, high current can pass through electricity Solution capacitance EC1 flows through main transformer T1, metal-oxide-semiconductor Q1, resistance R16 and R17, and electric energy can be converted to Magnetic Energy Storage in main transformer pressure at this time 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 capacitance C2 composition RCD absorbing circuits, prevent when metal-oxide-semiconductor Q1 from turning off by main transformer The leakage inductance peak voltage breakdown metal-oxide-semiconductor Q1 that T1 is generated；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 is supplied to main power source pwm control circuit to gather signal.

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

The 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, since 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, at this time Main transformer T1 is energized to load, while provides energy storage to output filter capacitor EC6, EC7, EC8 and EC9.

The main power source sampling comparison circuit includes voltage-stabiliser tube 431CA, resistance R18, resistance R44, resistance R43, resistance R45, resistance R42, capacitance C21, capacitance 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 The reference voltage 2.5V of pipe 431CA 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 capacitance C21, resistance R42, the feedback compensation electricity that capacitance C34 is voltage-stabiliser tube 431CA Road.

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

The 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 elements such as diode D4, triode Q9 and resistance R14 are formed.Driving chip IC1 uses NCP1380.Main work( Voltage on the current-limiting resistance R16 and R17 of rate translation circuit acts on the CS feet of driving chip IC1, optocoupler U1 by resistance R9 Original edge voltage acts on the FB feet of driving chip IC1 by resistance R10, and such driving chip IC1 can detect main transformer pressure constantly The signal of device T1 primary and secondary sides generates pwm pulse and determines the width of pwm pulse, passes 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.

With reference to Fig. 5, the control loop includes resistance R102, resistance R103, resistance R104, electrolytic capacitor EC4, voltage stabilizing Pipe ZD2, resistance R52, optocoupler U4, triode Q3, voltage-stabiliser tube ZD1, electrolytic 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 electrolytic capacitor EC4 Pressure.

Primary side one end of optocoupler U4 connects MCU units by triode Q30, and the other end connects idle function electricity by resistance R53 The output terminal P1 on road.The secondary one of optocoupler U4 terminates the base stage of triode Q3, and the other end connects the collection of triode Q3 by resistance R52 Electrode；Voltage-stabiliser tube ZD1 is connected across between base stage and the ground of triode Q3.Electrolytic capacitor EC12 is connected across the emitter of triode Q3 Between ground.The collector voltage VCC1 of triode Q3 is the positive terminal voltage of electrolytic capacitor EC4, for driving idle function electric Road.The emitter voltage VCC2 of triode Q3 is used to drive the driving chip IC1 of 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 electrolytic capacitor EC4, VCC1 Voltage is begun to ramp up, and the driving chip IC2 of accessory power supply pwm control circuit starts to work, 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 18 feet of MCU chip U3（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 VCC1 will at this time It is powered by triode Q3 to VCC2, main circuit power pwm control circuit can just start to work.When controller is in light condition When, 18 feet of MCU chip U3（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 the output signal of MCU chip U3, primary side master mainly is controlled by secondary circuit for optocoupler U3 effects in this Power supply pwm control circuit, while play the role of the former secondary of isolation.

The 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 capacitance C12.As the driving chip IC2 of accessory power supply pwm control circuit 5, When 6 feet turn on, high current can flow through auxiliary transformer T2, driving chip IC2, resistance R105 and resistance by electrolytic capacitor EC1 R106, at this time electric energy can be converted to Magnetic Energy Storage inside auxiliary transformer T2, when driving chip IC2 5,6 feet shut-off when, magnetic Electric energy can be converted to and give accessory power supply current rectifying and wave filtering circuit.

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

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

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

The accessory power supply sampling comparison circuit includes voltage-stabiliser tube 431A, resistance R27, resistance R28, resistance R30, resistance R25, resistance R26, resistance R29, capacitance 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 the reference voltage 2.5V of voltage-stabiliser tube 431A, passes through optocoupler U2 Pass to accessory power supply pwm control circuit come the moment adjust stabilize the output voltage；Wherein capacitance C22 and resistance R29 is voltage-stabiliser tube The compensation circuit of 431CA.

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

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

Include MCU chip U3 and peripheral circuit with reference to Fig. 6, the MCU, sampled, and carried out by peripheral circuit Internal arithmetic and the data of output.Using STM8S005K6T6C.

With reference to Fig. 7, the MCU sample circuits can be arranged to according to the heater element quantity of heat generating device one, two A or multiple circuits.By the combination on or off of different heat unit, different temperature gears is adjusted out.Each fever Element corresponds to a MCU sample circuit and an output loading temperature control circuit.In the present embodiment, MCU sample circuits are two It is a.Wherein, the first MCU sample circuits include an operational amplifier U5B and its peripheral circuits, the input of operational amplifier U5B Anode gathers the electric current and voltage signal of the first output loading temperature control circuit, and the ADC I2 feet of MCU chip U3 are passed to after amplification, MCU chip U3 according to the data sampled, can calculate the pulse width of the PWM1 of output loading temperature control circuit.

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

Operational amplifier U5A and U5B use LM258.

The output loading temperature control circuit is corresponded 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 the PWM1 output pins of MCU chip U3, and first order amplification is carried out to PWM1 signals.Triode Q14 and triode Q15 Base stage and emitter composition multiple tube in parallel, second level amplification is carried out to PWM1 signals, is passed through and is emitted collection control metal-oxide-semiconductor Q17's Gate pole.The drain electrode of metal-oxide-semiconductor Q17 connects the first load, and source electrode is grounded by resistance R71.When MCU chip U3 to PWM1 signal for height During level, c, e of triode Q13 will be turned on, and the base voltage of triode Q14 will drag down, and metal-oxide-semiconductor Q17 is without height at this time Level driver is closed, and the first load will not access circuit；When MCU chip U3 is low level to the signal of PWM1, Triode Q13 by c, e will turn on, the base voltage of triode Q14 will be drawn high, at this time 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.

With reference to Fig. 8, the output loading temperature control circuit provides power supply by a power supply circuit.The power supply circuit bag Include diode D9, input terminal electrolytic capacitor EC10, triode Q2, resistance R35, voltage-stabiliser tube ZD3, input terminal electrolytic capacitor EC11 and Output capacitance C19.The output end voltage V0+ of circuit of synchronous rectification is converted to 15V voltage values 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 base stage and the collector of triode Q2, is given Triode Q2 provides base voltage, while plays negative feedback.Voltage-stabiliser tube ZD3 is connected on the base stage and ground of triode Q2 Between, for stablizing forward voltage between e, b of triode Q2, when DC voltage is more than the voltage stabilizing value of voltage-stabiliser tube ZD3 between e, b, Influence of the excessively high interference signal of base stage to circuit can have been prevented by voltage-stabiliser tube ZD3 clampers in voltage stabilizing value.

With reference to Fig. 9, the software protection circuit includes 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 variation 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 sending give MCU chip U3,19 feet of MCU chip U3（PULSE）Will transmission level give triode Q20, and pass through three Pole pipe Q6 and triode Q7, the collector of triode Q6（PRO1）The base stage of triode Q11 is controlled, and then determines MOS The second load circuit is cut off in the shut-off of pipe Q16.Similarly, the collector of triode Q7（PRO2）The base stage of triode Q14 is carried out Control, and then determine the shut-off of metal-oxide-semiconductor Q17, cut off the first load circuit.

With reference to Fig. 5, the protection circuit of MCU units further includes a hardware protection circuit.The 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 It hinders R38, resistance R36, resistance R46, resistance R39 and voltage-stabiliser tube 431B and provides stable reference voltage to operational amplifier chip 2 feet and 6 feet of IC4.Since 3 feet of operational amplifier chip IC4 and 5 feet 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 a certain level）If sampling Voltage reaches 2 feet of operational amplifier chip IC4 and the reference voltage of 6 feet, and operational amplifier chip IC4 will pass through 1 foot and 7 Foot exports high level and gives triode Q5, and the base stage of triode Q30 will be pulled low at this time, and the light emitting diode of optocoupler U4 will be disconnected It opens, then VCC2 does not generate 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 Figure 10, the utility model wireless communication line, including wireless chip U6 and peripheral circuit, the no core Piece U6 uses CC1101.

Reference Figure 11, the utility model bluetooth communication circuit, including Bluetooth chip U7 and peripheral circuit, the bluetooth core Piece U7 uses 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.

By the intelligence control system of, Electric heating mattress and electric heating blanket, operation principle is as follows for a kind of electric heating of the utility model：

1）Mobile phone and/or Digiplex send controller unlatching, shut-off or the instruction into holding state, can also Various parameters or operating mode are set, and can show operating status and running parameter on the screen.

2）After energization, electric main is filtered and is exported with after rectification to main power source by em filtering circuit and commutating circuit Circuit and idle function circuit, load access circuit, heat generating device generate heat after being powered under safe dc voltage and get 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）Because without generating apparent power consumption.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 excessively high, whole Or partial load mismatches）Cut off main power circuit.

It is to be understood that：Above-described embodiment is simply to the explanation of the utility model rather than to the utility model Limitation, any utility model without departing from the utility model in essence scope are created, and each fall within the protection of the utility model Within the scope of.

Claims (20)

1. a kind of electric heating is by the intelligence control system of, Electric heating mattress and electric heating blanket, including controller, heat generating device, 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 alternating current of the controller, output terminal sending and receiving thermal； The controller includes em filtering circuit, commutating circuit, main power circuit, idle function circuit and MCU units.

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

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

4. the intelligence control system of a kind of electric heating quilt as described 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 the main power conversion circuit exports commutating circuit carries out power conversion； The synchronous rectification filter circuit by the electric signal that main power conversion circuit exports synchronize rectification and filtering after export to Load；The 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 adjusting pwm pulse width so that main power conversion circuit is controlled to stablize Output voltage；The 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 capacitance C2, wherein：Diode D1, diode D23, resistance R4, resistance R5, electricity R3 and capacitance C2 composition RCD absorbing circuits are hindered, the leakage inductance peak voltage generated when preventing metal-oxide-semiconductor Q1 from turning off by main transformer T1 is hit Wear metal-oxide-semiconductor Q1；The voltage generated on current-limiting resistance R16 and current-limiting resistance R17 is supplied to main power source pwm control circuit acquisition 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, capacitance C21, capacitance 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 generates pwm pulse and determines that the width of pwm pulse controls main power conversion circuit output to stablize electricity 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, electrolytic capacitor EC4, voltage-stabiliser tube ZD2, resistance R52, optocoupler U4, triode Q3, voltage-stabiliser tube ZD1, electrolytic 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 Electrolytic capacitor EC4 provides charging voltage；The primary side of optocoupler U4 connects MCU units and by resistance R53 by triode Q30 respectively Reception machine functional circuit, the secondary of optocoupler U4 connect the base stage of triode Q3 and the collection of triode Q3 are connect by resistance R52 respectively Electrode；Voltage-stabiliser tube ZD1 is connected across between base stage and the ground of triode Q3；Electrolytic capacitor EC12 is connected across the emitter of triode Q3 Between ground；For driving idle function circuit, the emitter voltage of triode Q3 is used to drive the collector voltage of triode Q3 Dynamic main power circuit.

10. the intelligence control system of a kind of electric heating quilt as described in claim 1, Electric heating mattress and electric heating blanket, it is characterised in that The 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 the accessory power supply power conversion circuit exports commutating circuit Carry out power conversion；The electric signal that the accessory power supply current rectifying and wave filtering circuit exports accessory power supply power conversion circuit carries out It is exported after rectification and filtering to load；Described accessory power supply sampling comparison circuit carries out output voltage 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 stabilizes the 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 The 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 capacitance C12, the diode D6, resistance R21, resistance R22 and capacitance C12 compositions RCD inhale Circuit is received, the leakage inductance voltage breakdown accessory power supply generated when preventing accessory power supply pwm control circuit from turning off by auxiliary transformer T2 Pwm control circuit；The voltage generated on 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 The accessory power supply pwm control circuit includes driving chip IC2, the driving chip IC2 by detecting auxiliary electricity constantly The feedback signal of source power translation circuit and accessory power supply sampling comparison circuit generates 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 The 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 reversed 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 is energized 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 The accessory power supply sampling comparison circuit includes voltage-stabiliser tube 431A, resistance R27, resistance R28, resistance R30, resistance R25, resistance R26, resistance R29, capacitance C22 and optocoupler U2；Resistance R27, resistance R28 and resistance R30 carry out output voltage partial pressure sampling, profit With the sampled voltage above resistance R30 compared with the reference voltage 2.5V of voltage-stabiliser tube 431A, passed to by optocoupler U2 auxiliary Power supply pwm control circuit is helped to carry out moment adjusting to stabilize the output voltage；Wherein capacitance C22 and resistance R29 is the benefit of voltage-stabiliser tube 431CA 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 the 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 The 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 The MCU sample circuits include at least an operational amplifier U5B, gather the electric current of output loading temperature control circuit and voltage letter 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 The output loading temperature control circuit includes triode Q13, triode Q14, triode Q15, metal-oxide-semiconductor Q17 and resistance R71；Three The base stage of pole pipe Q13 meets MCU；Triode Q14 and triode Q15 base stages and emitter are in parallel, and base stage and the collection of triode Q13 Electrode is connected, and transmitting collection is connected to the gate pole of metal-oxide-semiconductor Q17；The drain electrode of metal-oxide-semiconductor Q17 connects load；MCU is by controlling triode The base voltage of Q13 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 The output loading temperature control circuit provides power supply by power supply circuit, and the 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 The protection circuit includes hardware protection circuit and software protection circuit；The hardware protection circuit acquisition output loading temperature The voltage signal on circuit is controlled, when it reaches reference voltage, cuts off main power conversion circuit；The software protection circuit by It controls in MCU, load circuit is cut off in circuit abnormality.