CN112506256A - Carbon fiber infrared self-heating system and control method - Google Patents
Carbon fiber infrared self-heating system and control method Download PDFInfo
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- CN112506256A CN112506256A CN202011469560.3A CN202011469560A CN112506256A CN 112506256 A CN112506256 A CN 112506256A CN 202011469560 A CN202011469560 A CN 202011469560A CN 112506256 A CN112506256 A CN 112506256A
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- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
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Abstract
A carbon fiber infrared self-heating system and a control method thereof, the self-heating system comprises a power module, a temperature controller, a carbon fiber self-heating sheet and a high-sensitive electronic temperature sensor; the temperature controller comprises a central controller, sub-controllers, a power supply input terminal, a load self-heating sheet output terminal, a high-sensitivity sensor terminal, a self-heating sheet work control switch and a dial switch; the central controller is used for carrying out master control, judging the numerical relation between the temperature numerical value fed back by the high-sensitivity electronic temperature sensor and the target temperature set by the dial switch, controlling the input condition of the input current of the carbon fiber self-heating sheet according to the quasi-output power calculated by the sub-controllers, and achieving the control of constant temperature; the carbon fiber heating layer of the carbon fiber self-heating sheet is formed by weaving N carbon fiber wires after being mutually crossed, and the heating area power consumption of the carbon fiber self-heating sheet is controlled by controlling the density degree of the woven carbon fiber wires; the self-heating system has the advantages of simple structure, small volume, low power and high heating efficiency, and can realize constant temperature control.
Description
Technical Field
The invention relates to the technical field of heating devices, in particular to a carbon fiber infrared self-heating system and a control method.
Background
In recent years, due to the continuous construction and development of large and medium-sized urban rail transit, the market demands of various parts of rail transit vehicles are increasingly strong, and the rail transit vehicle is used as a heating system which is an important demand of urban rail vehicles in winter and provides heat preservation and warm-keeping heat sources for passengers in winter. The traditional heat supply electric heating system is in a resistance heating form, has large volume and high power consumption, is not suitable for being excessively installed in a railway vehicle, and has limited installation quantity; moreover, due to the narrow space specificity of some rail vehicles, the traditional heat supply electric heating system cannot be installed.
The carbon fiber is a novel fiber material of high-strength and high-modulus fiber with the carbon content of more than 95 percent. Under the action of an electric field, a large number of carbon crystal molecular groups generate Brownian motion, carbon molecules rub and collide with each other to generate a large number of heat energy, and therefore conversion of electric energy → heat energy is achieved. The carbon fiber heating has higher electric heat conversion efficiency, the application of the existing carbon fiber heating product is very wide, but the power consumption of the existing carbon fiber heating product is high (1 m)2Not less than 700W; ) The volume is not small enough, so that the device is still not suitable for being installed too much in the railway vehicle and cannot be embedded into corresponding parts (glass fiber reinforced plastic seat) of the railway vehicle; in addition, the existing carbon fiber heating products mainly control temperature transformation by on-off current, the temperature control effect is not ideal, and constant temperature control cannot be achieved.
Disclosure of Invention
In view of the above technical problems and disadvantages, an object of the present invention is to provide a carbon fiber infrared self-heating system which has a simple structure, a small volume, a low power, a high heat generation efficiency, and a constant temperature control.
In order to realize the purpose, the invention is realized by adopting the following technical scheme:
a carbon fiber infrared self-heating system comprises a power supply module, a temperature controller, a carbon fiber self-heating sheet and a high-sensitivity electronic temperature sensor; the power supply module is electrically connected with the high-voltage input current and used for converting high-voltage alternating current into low-voltage direct current;
the temperature controller comprises a central controller and a sub-controller which are integrated on a PCB board, a power input terminal, a load self-heating piece output terminal, a high-sensitivity sensor terminal, a self-heating piece working control switch and a dial switch which are arranged on a temperature controller shell; the central controller is used for performing master control, calculating and processing the analog-digital of the 12-bit analog quantity signal input by the high-sensitivity electronic temperature sensor and judging the numerical relation between the temperature numerical value fed back by the high-sensitivity electronic temperature sensor and the target temperature set by the dial switch; meanwhile, the input condition of the input current of the carbon fiber self-heating sheet is controlled according to the quasi-output power calculated by the sub-controllers, so that the heating condition of the carbon fiber self-heating sheet is controlled, the carbon fiber self-heating sheet is maintained in a target temperature range, and the temperature is controlled to be constant;
the sub-controllers are electrically connected with the central controller and used for calculating the quasi-output power by adopting a PID algorithm according to the target temperature set by the dial switch and the temperature value fed back by the high-sensitivity electronic temperature sensor calculated by the central processor and correcting the output power of the carbon fiber self-heating plate in real time;
the power supply input terminal is electrically connected with the power supply module, current enters the temperature controller through the power supply input terminal to enable the temperature controller to start working, and part of low-voltage direct current is output to the carbon fiber self-heating sheet externally connected with the temperature controller through the load self-heating sheet output terminal to supply power to the carbon fiber self-heating sheet so as to heat the carbon fiber self-heating sheet; the other part of the low-voltage direct current is changed into DC3.3v direct current through an output voltage stabilizing circuit module in the temperature controller, and the direct current is used for starting a central controller in the temperature controller and electric elements on a PCB (printed circuit board);
the output terminal of the load self-heating sheet is electrically connected with the carbon fiber self-heating sheet;
the high-sensitivity sensor terminal is electrically connected with the high-sensitivity electronic temperature sensor;
the dial switch is electrically connected with the central controller and is used for setting the system temperature;
the carbon fiber heating layer of the carbon fiber self-heating sheet is formed by weaving N carbon fiber wires after being mutually crossed, and the heating area power consumption of the carbon fiber self-heating sheet is controlled by controlling the density degree of the woven carbon fiber wires;
the high-sensitivity electronic temperature sensor is arranged in a region to be heated, monitors the temperature of the carbon fiber self-heating sheet in real time and transmits a feedback 12-bit analog quantity signal to the central controller in real time through a high-sensitivity sensor terminal;
and the self-heating sheet work control switch is used for controlling the starting of the carbon fiber self-heating sheet.
Preferably, the thickness of the carbon fiber self-heating sheet is less than 1mm, and the carbon fiber self-heating sheet comprises a carbon fiber heating layer, a conductive copper sheet, a power supply lead and a prepreg layer; the carbon fiber heating layer is formed by weaving N carbon fiber wires after the N carbon fiber wires are mutually crossed; the conductive copper sheet is wound and fixed around the carbon fiber heating layer through the carbon fiber wire; one end of the power supply lead is electrically connected with the conductive copper sheet, and the other end of the power supply lead is electrically connected with the output terminal of the load self-heating sheet of the temperature controller; the prepreg layer is coated around the carbon fiber heating layer and is used for sealing and insulating the carbon fiber self-heating sheet.
Preferably, an input voltage stabilizing circuit module, an output voltage stabilizing circuit module, a temperature output circuit module, an input signal acquisition amplifier circuit module and a temperature dial switch circuit module are integrated on a PCB inside the temperature controller; the input voltage stabilizing circuit module is electrically connected with the power input terminal and is used for providing stable input voltage for the temperature controller;
the output voltage stabilizing circuit module is electrically connected with the input voltage stabilizing circuit module and is used for providing output voltage for the temperature controller and supplying power to microelectronic components in a PCB (printed circuit board) of the temperature controller;
one end of the temperature output circuit module is electrically connected with the high-sensitivity sensor terminal, and the other end of the temperature output circuit module is electrically connected with the input signal acquisition amplifier circuit module; the temperature output circuit module is used for feeding the temperature detected by the high-sensitivity electronic temperature sensor back to the central controller after passing through the input signal acquisition amplifier circuit module;
the input signal acquisition amplifier circuit module is electrically connected with the central controller; the input signal acquisition amplifier circuit module is used for amplifying a temperature feedback signal input by a high-sensitivity temperature sensor of the temperature output circuit module;
the temperature dial switch circuit module is electrically connected with the dial switch and the central controller.
As a preferred aspect of the present invention, a self-heating sheet power input circuit module, a self-heating sheet control circuit module, and a temperature start control end circuit module are further integrated on the PCB board inside the temperature controller; the self-heating piece power input circuit module is electrically connected with a load self-heating piece output terminal, and is used for inputting DC24V direct current to a self-heating piece voltage and current circuit and providing stable input voltage for the self-heating piece;
the self-heating piece control circuit module is electrically connected with the central controller and the self-heating piece power input circuit module and is used for controlling the current voltage and the power capacity of each carbon fiber self-heating piece according to the calculation result of the central controller;
the temperature start control end circuit module is electrically connected with the self-heating piece work control switch and the central controller and is used for controlling the start of the self-heating piece power input circuit module, so that each self-heating piece can be independently started to heat up.
As a preferred choice of the invention, the temperature controller shell is also provided with a power indicator light and a temperature control indicator light; the power indicator lamp is used for visual display when voltage is normally input, and is constantly on when control voltage is normally input; the temperature control indicating lamp is electrically connected with the temperature control indicating lamp circuit module, the temperature control indicating lamp circuit module is electrically connected with the self-heating piece control circuit module, the temperature control indicating lamp is used for visual display of normal work of each way of temperature control, when each way of carbon fiber self-heating piece normally works in temperature control, the temperature control indicating lamp is long and bright, and when the temperature rises to the target temperature set by the dial switch, the temperature control indicating lamp is turned off.
Preferably, the central controller is electrically connected to a CMOS monitoring circuit module, and the CMOS monitoring circuit module is used to monitor a power supply voltage, a battery fault, and an operating state of the central controller or the sub-controllers.
Preferably, the dial switch is arranged on the temperature controller shell or is remotely controlled, the dial switch adopts an 0/1 binary control principle, five control buttons are arranged on the dial switch, each control button can shift 0/1 two gears, and different combinations of 0/1 gears of different control buttons respectively correspond to temperature limits of 0-100 ℃.
In a further preferred embodiment of the present invention, the prepreg layer is made of glass fiber prepreg, and the conductive copper sheet has a cylindrical structure with a diameter of less than 1 mm.
Another object of the present invention is to provide a method for controlling a carbon fiber infrared self-heating system, comprising the following steps:
and 6, controlling the input condition of the input current of the carbon fiber self-heating sheet by the central controller according to the quasi-output power calculated by the sub-controllers, and controlling the heating condition of the carbon fiber self-heating sheet to keep the carbon fiber self-heating sheet within a target temperature range so as to achieve constant temperature control.
The invention has the advantages and beneficial effects that:
(1) the self-heating system provided by the invention is simple in structure, is different from the traditional resistance heating mode, adopts the carbon fiber self-heating sheet, utilizes the infrared heat release mode of friction heat generation of carbon atom Brownian motion, and is more environment-friendly, safer and more efficient in heat generation mode.
(2) Compared with the traditional carbon fiber self-heating sheet, the carbon fiber self-heating sheet in the self-heating system has the heating area and the power consumption of 1m2The power consumption is less than or equal to 300W, and the power consumption is lower under the condition of the same heat productivity; the self-heating piece adopts a prepreg packaging layer structure, the structure is pre-embedded into the glass fiber reinforced plastic and cannot cause the internal delamination of the glass fiber reinforced plastic after being heated, and the traditional carbon fiber self-heating piece packaging substrate is of a non-woven fabric or non-woven cotton structure and cannot be pre-embedded into the glass fiber reinforced plastic, so the glass fiber reinforced plastic can be delaminated after being heated in the glass fiber reinforced plastic; the thickness of the self-heating sheet in the self-heating system is controlled below 1mm, and the internal space of the glass fiber reinforced plastic layer is not occupied; the thickness of the traditional carbon fiber self-heating sheet reaches more than 2.5 mm; the carbon fibers in the carbon fiber self-heating sheet in the self-heating system are of a mesh fabric structure, are different from the pattern structure of the carbon fibers in the traditional carbon fiber self-heating sheet, generate larger heat productivity under the condition of less carbon fiber content, and have higher economic benefit and lower cost advantage.
(3) The self-heating sheet of the self-heating system can meet the fire-proof grade of EN45545-HL3 due to the characteristics of the selected material, and the ISO 5660-1 radiation heat flow is 35kW/m2, which are parameter requirements which can not be realized by the traditional self-heating sheet.
(4) The self-heating system can correct the output power of the carbon fiber self-heating sheet in real time through the improvement of the temperature controller, so that the temperature of the loaded carbon fiber self-heating sheet is linearly controlled to be maintained at the target temperature of the system, the aim of controlling the temperature of the system to be constant is achieved, and the technical problem that the temperature change is controlled by the traditional on-off current, namely, only the power-on heating and the power-off heating are carried out, the curve of the controlled temperature is in a fluctuation type, and the temperature cannot be controlled to be constant is solved.
Drawings
FIG. 1 is a schematic connection diagram of the autothermal system of the present invention;
FIG. 2 is a schematic structural view of a carbon fiber self-heating sheet of the present invention;
FIG. 3 is a schematic view of the connection between the thermostat and the carbon fiber self-heating sheet according to the present invention;
FIG. 4 is a schematic view of the connection between the thermostat and the high-sensitivity electronic temperature sensor according to the present invention;
FIG. 5 is a circuit diagram of a PCB board of the temperature controller of the present invention;
FIG. 6 is a second circuit diagram of the PCB board of the temperature controller of the present invention;
FIG. 7 is a third illustrative diagram of the PCB circuit of the thermostat of the present invention.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In the description of the present application, it is to be noted that the terms "inside", "below", and the like refer to orientations or positional relationships based on orientations or positional relationships shown in the drawings or orientations or positional relationships that are conventionally arranged when products of the application are used, and are used only for convenience in describing the application and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the application. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.
In the description of the present application, it is also to be noted that, unless otherwise explicitly specified or limited, the terms "disposed" and "connected" are to be interpreted broadly, e.g., as being either fixedly connected, detachably connected, or integrally connected; they may be mechanically coupled, directly coupled, indirectly coupled through intervening media, or may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
Example 1
Referring to fig. 1 to 4, the carbon fiber infrared self-heating system provided by the present invention comprises a power module 1, a temperature controller 2, a carbon fiber self-heating sheet 3, and a high-sensitivity electronic temperature sensor 4; the power supply module 1 is electrically connected with a high-voltage input current and used for converting a high-voltage alternating current into a low-voltage direct current;
the temperature controller 2 comprises a central controller 210 and a sub-controller 211 which are integrated on a PCB board, a power input terminal 2-1, a load self-heating piece output terminal 2-2, a high-sensitivity sensor terminal 2-3, a self-heating piece work control switch 2-4 and a dial switch which are arranged on a temperature controller shell 2-5; the central controller is used for performing master control, calculating and processing the analog-digital of the 12-bit analog quantity signal input by the high-sensitivity electronic temperature sensor and judging the numerical relation between the temperature numerical value fed back by the high-sensitivity electronic temperature sensor and the target temperature set by the dial switch; meanwhile, the input condition of the input current of the carbon fiber self-heating sheet is controlled according to the quasi-output power calculated by the sub-controllers, so that the heating condition of the carbon fiber self-heating sheet is controlled, the carbon fiber self-heating sheet is maintained in a target temperature range, and the temperature is controlled to be constant;
the sub-controllers are electrically connected with the central controller and used for calculating the quasi-output power by adopting a PID algorithm (PID regulator) according to the target temperature set by the dial switch and the temperature value fed back by the high-sensitivity electronic temperature sensor calculated by the central processor and correcting the output power of the carbon fiber self-heating piece in real time;
the power input terminal 2-1 is electrically connected with the power module 1, current enters the temperature controller through the power input terminal to enable the temperature controller to start working, and part of low-voltage direct current is output to the carbon fiber self-heating sheet externally connected with the temperature controller through the load self-heating sheet output terminal to supply power to the carbon fiber self-heating sheet so as to heat the carbon fiber self-heating sheet; the other part of the low-voltage direct current is changed into DC3.3v direct current through an output voltage stabilizing circuit module in the temperature controller and is used for starting a central processing unit in the temperature controller and electric elements on a PCB (printed circuit board);
the load self-heating sheet output terminal 2-2 is electrically connected with the carbon fiber self-heating sheet 3;
the high-sensitivity sensor terminals 2-4 are electrically connected with the high-sensitivity electronic temperature sensor 4;
the dial switch is electrically connected with the central controller and is used for setting the system temperature;
the carbon fiber heating layer of the carbon fiber self-heating piece 3 is formed by weaving N carbon fiber wires after being mutually crossed, and the heating area power consumption of the carbon fiber self-heating piece is controlled to be 1m by controlling the density degree of the woven carbon fiber wires2≤300W；
The high-sensitivity electronic temperature sensor 4 is arranged in a region to be heated, monitors the temperature of the carbon fiber self-heating sheet in real time, and transmits a feedback 12-bit analog quantity signal to the central controller in real time through a high-sensitivity sensor terminal;
and the self-heating sheet work control switch is used for controlling the starting of the carbon fiber self-heating sheet.
Continuing to refer to fig. 2, the thickness of the carbon fiber self-heating sheet 3 is less than 1mm, and the carbon fiber self-heating sheet 3 comprises a carbon fiber heating layer 3-1, a conductive copper sheet 3-2, a power supply lead 3-3 and a prepreg layer 3-4; the carbon fiber heating layer 3-1 is formed by weaving N carbon fiber wires after being mutually crossed; the conductive copper sheet 3-2 is fixed around the carbon fiber heating layer in a winding manner through carbon fiber wires, and is of a cylindrical structure with the diameter smaller than 1 mm; one end of the power supply lead 1 is electrically connected with the conductive copper sheet 3-2, and the other end of the power supply lead is electrically connected with a load self-heating sheet output terminal of the temperature controller; the prepreg layers 3-4 are coated around the carbon fiber heating layer and used for sealing and insulating the carbon fiber self-heating sheet, and the prepreg layers are made of glass fiber prepregs.
Referring to fig. 5 to 7, an input voltage stabilizing circuit module 201, an output voltage stabilizing circuit module 202, a temperature output circuit module 203, an input signal collecting amplifier circuit module 204, a temperature dial switch circuit module 205, a self-heating plate power input circuit module 206, a self-heating plate control circuit module 207, and a temperature start control end circuit module 208 are further integrated on the PCB inside the temperature controller; the input voltage stabilizing circuit module 201 is electrically connected with the power input terminal 2-1, and the input voltage stabilizing circuit module 201 is used for providing stable input voltage (the direct current voltage from 5.5V to 36V is input and is converted into DC24V direct current voltage through a TPS5430 conversion device) for the temperature controller;
the output voltage stabilizing circuit module 202 is electrically connected with the input voltage stabilizing circuit module 201, and the output voltage stabilizing circuit module 202 is used for providing output voltage for the temperature controller and supplying power to microelectronic components in a PCB (the forward voltage drop of DC24V is DC3.3V by adopting an AMS1117-3.3 voltage stabilizer);
one end of the temperature output circuit module 203 is electrically connected with the high-sensitivity sensor terminal 2-3, and the other end is electrically connected with the input signal acquisition amplifier circuit module 204; the temperature output circuit module 203 is used for feeding back the temperature detected by the high-sensitivity electronic temperature sensor to the central controller 210 after passing through the input signal acquisition amplifier circuit module 204;
the input signal acquisition amplifier circuit module 204 is electrically connected with the central controller 210; the input signal acquisition amplifier circuit module 204 is used for amplifying a temperature feedback signal input by a high-sensitivity temperature sensor of the temperature output circuit module 203;
the temperature dial switch circuit module 205 is electrically connected with a dial switch and a central controller;
the self-heating plate power input circuit module 206 is electrically connected with the load self-heating plate output terminal 2-2, and is used for inputting the DC24V to a self-heating plate voltage and current circuit to provide a stable input voltage for the self-heating plate;
the self-heating plate control circuit module 207 is electrically connected with the central controller and the self-heating plate power input circuit module 206 and is used for controlling the current voltage and the power capacity of each carbon fiber self-heating plate according to the calculation result of the central controller;
the temperature start control end circuit module 208 is electrically connected with the self-heating sheet work control switches 2-4 and the central controller, and is used for controlling the start of the self-heating sheet power input circuit module, so that each self-heating sheet can be independently started to heat up.
The shell of the temperature controller is also provided with a power indicator and a temperature control indicator 2-6; the power indicator lamp is electrically connected with the power indicator lamp circuit module 212, the power indicator lamp circuit module is electrically connected with the power input terminal, the power indicator lamp is used for performing visual display when voltage is normally input, and the power indicator lamp is constantly on when the control voltage is normally input; the temperature control indicator lamps 2-6 are electrically connected with the temperature control indicator lamp circuit module 213, the temperature control indicator lamp circuit module 213 is electrically connected with the self-heating piece control circuit module 207, the temperature control indicator lamps are used for visually displaying the normal work of each way of temperature control, when each way of carbon fiber self-heating piece temperature control works normally, the temperature control indicator lamps are long and bright, and when the temperature rises to the target temperature set by the dial switch, the temperature control indicator lamps are turned off.
The dial switch can be arranged on a temperature controller shell, or can be remotely controlled, the dial switch adopts an 0/1 binary control principle, five control buttons are arranged on the dial switch, each control button can shift 0/1 two gears, different combinations of 0/1 gears of different control buttons respectively correspond to temperature limits of 0-100 ℃, an operator adjusts temperature setting by controlling the dial switch, meanwhile, the dial switch sends temperature limiting information to a central controller through a temperature dial switch circuit module, and the central controller controls the temperature change of a carbon fiber self-heating piece after receiving a temperature limiting information signal, so that the temperature adjusting function is realized.
The central controller according to the present invention is electrically connected to a CMOS monitoring circuit module 214, and the CMOS monitoring circuit module 214 is used to monitor a power supply voltage, a battery failure, and an operating state of the central controller 210 (a microprocessor MPU or mp) or the sub-controller 211 (a microcontroller MCU or MC or PID regulator).
The central controller 210 and the sub-controllers 211 in the invention adopt STM32F103, and STM32F103 uses high-performance
Cortex (TM) -M332 bit RISC core, operating at 72MHz, built-in high speed memory (up to 128K bytes of FLASH memory and 20K bytes of SRAM), 512KB FLASH, contains 2 ADCs of 12 bits, 3 universal 16-bit timers and 1 PWM timer.
The connection mode between the central controller 401 and the temperature dial switch circuit module 205 in the present invention includes: the output pins HEAT1 SW1, HEAT1 SW2, HEAT1 SW3, HEAT1 SW4 and HEAT1 SW5 of the central controller 210 are connected with the input pins HEAT1 SW1, HEAT1 SW2, HEAT1 SW3, HEAT1 SW4 and HEAT1 SW5 of the temperature dialing switch circuit module 205; the output pins HEAT2 SW1, HEAT2 SW2, HEAT2 SW3, HEAT2 SW4 and HEAT2 SW5 of the central controller 210 are connected with the input pins HEAT2 SW1, HEAT2 SW2, HEAT2 SW3, HEAT2 SW4 and HEAT2 SW5 of the temperature dialing switch circuit module 205; the output pins HEAT3 SW1, HEAT3 SW2, HEAT3 SW3, HEAT3 SW4 and HEAT3 SW5 of the central controller 210 are connected with the input pins HEAT3 SW1, HEAT3 SW2, HEAT3 SW3, HEAT3 SW4 and HEAT3 SW5 of the temperature dialing switch circuit module 205; the output pins HEAT4 SW1, HEAT4 SW2, HEAT4 SW3, HEAT4 SW4 and HEAT4 SW5 of the central controller 210 are connected with the input pins HEAT4 SW1, HEAT4 SW2, HEAT4 SW3, HEAT4 SW4 and HEAT4 SW5 of the temperature dialing switch circuit module 205;
the connection between the central controller 210 and the CMOS monitoring circuit module 214 includes: the output pin RST of the central controller 210 and the MCU WD1 are connected to the input pin RST of the CMOS monitor circuit module 214 and the MCU WD 1;
the connection mode between the central controller 210 and the self-heating plate control circuit module 207 includes: an output pin MCU HEAT1 of the central controller 210 is connected with an input pin MCU HEAT1 of the self-heating chip control circuit module 207, and is connected with an input pin HEAT1 GND of the temperature control indicator lamp circuit module 213 and a pin HEAT1 OUT of the self-heating chip power input circuit module 206 from an output pin HEAT1 GND, and a HEAT1 OUT pin thereof is connected with a pin HEAT1 OUT of the self-heating chip power input circuit module 206;
an output pin MCU HEAT2 of the central controller 210 is connected with a pin MCU HEAT2 of the self-heating sheet control circuit module 207, and is output from a pin HEAT2 GND to be connected with a pin HEAT2 GND of the temperature control indicator lamp circuit module 213 and a pin HEAT2 OUT of the self-heating sheet power input circuit module 206, and a HEAT2 OUT pin thereof is connected with a pin HEAT2 OUT of the self-heating sheet power input circuit module 206;
an output pin MCU HEAT3 of the central controller 210 is connected with a pin MCU HEAT3 of the self-heating sheet control circuit module 207, and is connected with a pin HEAT3 GND of the temperature control indicating lamp circuit module 213 and a pin HEAT3 OUT of the self-heating sheet power input circuit module 206 from an output pin HEAT2 GND, and a pin HEAT3 OUT thereof is connected with a pin HEAT3 OUT of the self-heating sheet power input circuit module 206;
an output pin MCU HEAT4 of the central controller 210 is connected with a pin MCU HEAT4 of the self-heating sheet control circuit module 207, and is connected with a pin HEAT4 GND of the temperature control indicating lamp circuit module 213 and a pin HEAT4 OUT of the self-heating sheet power input circuit module 206 from an output pin HEAT4 GND, and a pin HEAT4 OUT thereof is connected with a pin HEAT4 OUT of the self-heating sheet power input circuit module 206;
the connection mode of the central controller 210 and the input signal acquisition amplifier circuit module 204 includes:
an output pin coupper _ DEC1 of the central controller 210 is connected to an input pin coupper _ DEC1 of the input signal acquisition amplifier circuit block 204, and an input pin coupper IN1 thereof is connected to a pin coupper IN1 of the temperature output circuit block 203;
an output pin coupper _ DEC2 of the central controller 210 is connected to an input pin coupper _ DEC2 of the input signal acquisition amplifier circuit block 204, and an input pin coupper IN2 thereof is connected to a pin coupper IN2 of the temperature output circuit block 203;
an output pin coupper _ DEC3 of the central controller 210 is connected to an input module coupper _ DEC3 of the input signal acquisition amplifier circuit module 24, and an input pin coupper IN3 thereof is connected to a pin coupper IN3 of the temperature output circuit module 203;
an output pin coupper _ DEC4 of the central controller 210 is connected to an input pin coupper _ DEC4 of the input signal acquisition amplifier circuit block 204, and an input pin coupper IN4 thereof is connected to a pin coupper IN4 of the temperature output circuit block 203;
the pins HEAT _ START1, HEAT _ START2, HEAT _ START3, and HEAT _ START4 of the central controller 210 in this embodiment are connected to the pins HEAT _ START1, HEAT _ START2, HEAT _ START3, and HEAT _ START4 of the temperature START control circuit module 208;
the power input terminal 2-1 is connected with an input pin VCC _24V of the input voltage stabilizing circuit module 201 and is connected with an input pin VCC _24V of the power indicator lamp circuit module 212; the output pin VCC5V of the input voltage regulator circuit module 201 is connected to the input pin VCC5V of the output voltage regulator circuit module 202, the output pin 3.3VCC of the output voltage regulator circuit module 202 is connected to the input pin 3.3VCC of the sub-controller 211, and is connected to the input pin 3.3VCC of the CMOS monitor circuit module 214, and is connected to the input pin 3.3VCC of the temperature dial switch circuit module 205.
In the circuit connection in this embodiment, the FR4 insulating board is used for double-sided copper-clad wires to connect components on each PCB.
Example 2
A control method of a carbon fiber infrared self-heating system comprises the following steps:
and 6, controlling the input condition of the input current of the carbon fiber self-heating sheet by the central controller according to the quasi-output power calculated by the sub-controllers, and controlling the heating condition of the carbon fiber self-heating sheet to keep the carbon fiber self-heating sheet within a target temperature range so as to achieve constant temperature control.
Claims (9)
1. A carbon fiber infrared self-heating system is characterized by comprising a power supply module, a temperature controller, a carbon fiber self-heating sheet and a high-sensitivity electronic temperature sensor; the power supply module is electrically connected with the high-voltage input current and used for converting high-voltage alternating current into low-voltage direct current;
the temperature controller comprises a central controller and a sub-controller which are integrated on a PCB board, a power input terminal, a load self-heating piece output terminal, a high-sensitivity sensor terminal, a self-heating piece working control switch and a dial switch which are arranged on a temperature controller shell; the central controller is used for performing master control, calculating and processing the analog-digital of the 12-bit analog quantity signal input by the high-sensitivity electronic temperature sensor and judging the numerical relation between the temperature numerical value fed back by the high-sensitivity electronic temperature sensor and the target temperature set by the dial switch; meanwhile, the input condition of the input current of the carbon fiber self-heating sheet is controlled according to the quasi-output power calculated by the sub-controllers, so that the heating condition of the carbon fiber self-heating sheet is controlled, the carbon fiber self-heating sheet is maintained in a target temperature range, and the temperature is controlled to be constant;
the sub-controllers are electrically connected with the central controller and used for calculating the quasi-output power by adopting a PID algorithm according to the target temperature set by the dial switch and the temperature value fed back by the high-sensitivity electronic temperature sensor calculated by the central processor and correcting the output power of the carbon fiber self-heating plate in real time;
the power supply input terminal is electrically connected with the power supply module, current enters the temperature controller through the power supply input terminal to enable the temperature controller to start working, and part of low-voltage direct current is output to the carbon fiber self-heating sheet externally connected with the temperature controller through the load self-heating sheet output terminal to supply power to the carbon fiber self-heating sheet so as to heat the carbon fiber self-heating sheet; the other part of the low-voltage direct current is changed into DC3.3v direct current through an output voltage stabilizing circuit module in the temperature controller, and the direct current is used for starting a central controller in the temperature controller and electric elements on a PCB (printed circuit board);
the output terminal of the load self-heating sheet is electrically connected with the carbon fiber self-heating sheet;
the high-sensitivity sensor terminal is electrically connected with the high-sensitivity electronic temperature sensor;
the dial switch is electrically connected with the central controller and is used for setting the system temperature;
the carbon fiber heating layer of the carbon fiber self-heating sheet is formed by weaving N carbon fiber wires after being mutually crossed, and the heating area power consumption of the carbon fiber self-heating sheet is controlled by controlling the density degree of the woven carbon fiber wires;
the high-sensitivity electronic temperature sensor is arranged in a region to be heated, monitors the temperature of the carbon fiber self-heating sheet in real time and transmits a feedback 12-bit analog quantity signal to the central controller in real time through a high-sensitivity sensor terminal;
and the self-heating sheet work control switch is used for controlling the starting of the carbon fiber self-heating sheet.
2. The carbon fiber infrared self-heating system according to claim 1, wherein the thickness of the carbon fiber self-heating sheet is less than 1mm, and the carbon fiber self-heating sheet comprises a carbon fiber heating layer, a conductive copper sheet, a power supply lead and a prepreg layer; the carbon fiber heating layer is formed by weaving N carbon fiber wires after the N carbon fiber wires are mutually crossed; the conductive copper sheet is wound and fixed around the carbon fiber heating layer through the carbon fiber wire; one end of the power supply lead is electrically connected with the conductive copper sheet, and the other end of the power supply lead is electrically connected with the output terminal of the load self-heating sheet of the temperature controller; the prepreg layer is coated around the carbon fiber heating layer and is used for sealing and insulating the carbon fiber self-heating sheet.
3. The carbon fiber infrared self-heating system of claim 1, wherein an input voltage stabilizing circuit module, an output voltage stabilizing circuit module, a temperature output circuit module, an input signal collecting amplifier circuit module, and a temperature dial switch circuit module are further integrated on a PCB board inside the temperature controller; the input voltage stabilizing circuit module is electrically connected with the power input terminal; the input voltage stabilizing circuit module is used for providing stable input voltage for the temperature controller;
the output voltage stabilizing circuit module is electrically connected with the input voltage stabilizing circuit module; the output voltage stabilizing circuit module is used for providing output voltage for the temperature controller and supplying power to microelectronic components in the temperature controller PCB;
one end of the temperature output circuit module is electrically connected with the high-sensitivity sensor terminal, and the other end of the temperature output circuit module is electrically connected with the input signal acquisition amplifier circuit module; the temperature output circuit module is used for feeding the temperature detected by the high-sensitivity electronic temperature sensor back to the central controller after passing through the input signal acquisition amplifier circuit module;
the input signal acquisition amplifier circuit module is electrically connected with the central controller; the input signal acquisition amplifier circuit module is used for amplifying a temperature feedback signal input by a high-sensitivity temperature sensor of the temperature output circuit module;
the temperature dial switch circuit module is electrically connected with the dial switch and the central controller.
4. The carbon fiber infrared self-heating system of claim 1, wherein a PCB board inside the temperature controller is further integrated with a self-heating plate power input circuit module, a self-heating plate control circuit module, and a temperature start control circuit module; the self-heating piece power input circuit module is electrically connected with a load self-heating piece output terminal, and is used for inputting DC24V direct current to a self-heating piece voltage and current circuit and providing stable input voltage for the self-heating piece;
the self-heating piece control circuit module is electrically connected with the central controller and the self-heating piece power input circuit module and is used for controlling the current voltage and the power capacity of each carbon fiber self-heating piece according to the calculation result of the central controller;
the temperature start control end circuit module is electrically connected with the self-heating piece work control switch and the central controller and is used for controlling the start of the self-heating piece power input circuit module, so that each self-heating piece can be independently started to heat up.
5. The carbon fiber infrared self-heating system of claim 1, wherein the temperature controller housing is further provided with a power indicator and a temperature control indicator; the power indicator lamp is used for visual display when voltage is normally input, and is constantly on when control voltage is normally input; the temperature control indicating lamp is electrically connected with the temperature control indicating lamp circuit module, the temperature control indicating lamp circuit module is electrically connected with the self-heating piece control circuit module, the temperature control indicating lamp is used for visual display of normal work of each way of temperature control, when each way of carbon fiber self-heating piece normally works in temperature control, the temperature control indicating lamp is long and bright, and when the temperature rises to the target temperature set by the dial switch, the temperature control indicating lamp is turned off.
6. The carbon fiber infrared self-heating system of claim 1, wherein the central controller is electrically connected to a CMOS monitoring circuit module, and the CMOS monitoring circuit module is used to monitor a power supply voltage, a battery failure, and an operating status of the central controller or the sub-controller.
7. The carbon fiber infrared self-heating system as claimed in claim 1, wherein the dial switch is disposed on the thermostat housing or remotely controlled, the dial switch adopts 0/1 binary control principle, five control buttons are disposed thereon, each control button can shift 0/1 two gears, and different combinations of 0/1 gears of different control buttons correspond to temperature limits of 0-100 ℃.
8. The carbon fiber infrared self-heating system of claim 2, wherein the prepreg layer is made of glass fiber prepreg, and the conductive copper sheet is a cylindrical structure with a diameter of less than 1 mm.
9. The method of controlling a carbon fiber infrared autothermal system of claim 1, including the steps of:
step 1, installing a carbon fiber infrared self-heating system in a region to be heated;
step 2, turning on a self-heating sheet working control switch corresponding to a carbon fiber self-heating sheet to be heated to enable the carbon fiber self-heating sheet to be in a state to be heated, and then setting a target temperature through a dial switch;
step 3, switching on a power supply, starting heating of the carbon fiber self-heating sheet, monitoring the temperature of the carbon fiber self-heating sheet in real time by the high-sensitivity electronic temperature sensor at the moment, and transmitting the feedback 12-bit analog quantity signal to the central controller in real time through a high-sensitivity sensor terminal;
step 4, the central controller carries out analog-digital calculation processing on the 12-bit analog quantity signal input by the high-sensitivity electronic temperature sensor, and judges the numerical relationship between the temperature numerical value fed back by the high-sensitivity electronic temperature sensor and the target temperature set by the dial switch;
step 5, the sub-controller is used for calculating the output power by adopting a PID algorithm according to the target temperature set by the dial switch and the temperature value fed back by the high-sensitivity electronic temperature sensor and calculated by the central processing unit, and correcting the output power of the carbon fiber self-heating plate in real time;
and 6, controlling the input condition of the input current of the carbon fiber self-heating sheet by the central controller according to the quasi-output power calculated by the sub-controllers, and controlling the heating condition of the carbon fiber self-heating sheet to keep the carbon fiber self-heating sheet within a target temperature range so as to achieve constant temperature control.
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR200418897Y1 (en) * | 2006-03-29 | 2006-06-15 | 김권희 | temperature regulator of heating element |
| CN202018607U (en) * | 2011-04-11 | 2011-10-26 | 高爱祥 | Temperature intelligent monitoring system for digital transformer |
| KR20140036455A (en) * | 2012-09-14 | 2014-03-26 | 주식회사 솔고 바이오메디칼 | Thermal control circuit for heating instruments |
| WO2014071630A1 (en) * | 2012-11-12 | 2014-05-15 | Hu Shaobang | Safety electric-heating circuit, safety electric-heating method, and electric heater |
| CN104375539A (en) * | 2014-12-01 | 2015-02-25 | 刘希武 | Bi-temperature dual-control digital-display temperature controller of carbon fiber heating mattress |
| CN110594771A (en) * | 2019-04-17 | 2019-12-20 | 新汶矿业集团有限责任公司 | Heating and anti-freezing method for coal bunker in cold area |
| CN213634237U (en) * | 2020-12-15 | 2021-07-06 | 长春路通轨道车辆配套装备有限公司 | Carbon fiber infrared self-heating system |
-
2020
- 2020-12-15 CN CN202011469560.3A patent/CN112506256B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR200418897Y1 (en) * | 2006-03-29 | 2006-06-15 | 김권희 | temperature regulator of heating element |
| CN202018607U (en) * | 2011-04-11 | 2011-10-26 | 高爱祥 | Temperature intelligent monitoring system for digital transformer |
| KR20140036455A (en) * | 2012-09-14 | 2014-03-26 | 주식회사 솔고 바이오메디칼 | Thermal control circuit for heating instruments |
| WO2014071630A1 (en) * | 2012-11-12 | 2014-05-15 | Hu Shaobang | Safety electric-heating circuit, safety electric-heating method, and electric heater |
| CN104375539A (en) * | 2014-12-01 | 2015-02-25 | 刘希武 | Bi-temperature dual-control digital-display temperature controller of carbon fiber heating mattress |
| CN110594771A (en) * | 2019-04-17 | 2019-12-20 | 新汶矿业集团有限责任公司 | Heating and anti-freezing method for coal bunker in cold area |
| CN213634237U (en) * | 2020-12-15 | 2021-07-06 | 长春路通轨道车辆配套装备有限公司 | Carbon fiber infrared self-heating system |
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