CN204478386U - The distributed coolant pump controller of central air conditioning - Google Patents
The distributed coolant pump controller of central air conditioning Download PDFInfo
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- CN204478386U CN204478386U CN201420830820.9U CN201420830820U CN204478386U CN 204478386 U CN204478386 U CN 204478386U CN 201420830820 U CN201420830820 U CN 201420830820U CN 204478386 U CN204478386 U CN 204478386U
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Abstract
The distributed coolant pump controller of central air conditioning of the present utility model, comprise STM32F103V676 single-chip microcomputer and power module, single-chip microcomputer is by RS485 interface junction chamber external environment acquisition module, single-chip microcomputer connects isolated can circuit by CAN, single-chip microcomputer connects RS232 circuit and feedback data acquisition module by data wire, single-chip microcomputer connects host computer communication module, technological parameter acquisition module and signal output control module respectively by spi bus, is equipped with voltage and current signal change-over circuit in described signal output control module and feedback data acquisition module.This controller is with low cost, and function is many, stable performance, and precision is high.Long service life, good energy-conserving effect.
Description
Technical field
The utility model relates to central air-conditioning control field, specifically the distributed coolant pump controller of a kind of central air conditioning.
Background technology
In central air conditioner system; cooling system is related to the operating efficiency of refrigeration host computer, and control in the past often takes the temperature on Cooling system pipe to control, and such control exists when refrigeration host computer is shut down; coolant pump can not predict that air-conditioner host is shut down and dallies, and causes loss.In addition, existing coolant pump control system is functionally more single, can not give full play to energy-saving potential.
Utility model content
The utility model provides the distributed coolant pump controller of a kind of central air conditioning, can gather outdoor humiture data to adjust refrigeration host computer, meanwhile, also have the several functions such as debugging, technological parameter collection.
The utility model is by the following technical solutions: the distributed coolant pump controller of central air conditioning, comprise STM32F103V676 single-chip microcomputer and power module, single-chip microcomputer is by RS485 interface junction chamber external environment acquisition module, single-chip microcomputer connects isolated can circuit by CAN, single-chip microcomputer connects RS232 circuit and feedback data acquisition module by data wire, single-chip microcomputer connects host computer communication module respectively by spi bus, technological parameter acquisition module and signal output control module, voltage and current signal change-over circuit is equipped with in described signal output control module and feedback data acquisition module.
Further, described power module comprises electric capacity C1, the two ends of electric capacity C1 connect live wire and the zero line of alternating current respectively, the two ends of electric capacity C1 respectively with two inputs of common mode choke L1, the input of two output protector 14D47110E of common mode choke L1 and earth terminal, the output and ground of protector 14D47110E connects two inputs of full-wave rectification bridge D1 respectively, two outputs of full-wave rectification bridge D1 connect Vout1 output and Vout2 output respectively, the two ends of electric capacity C15 connect Vout1 output and Vout2 output respectively, resistance R1 is in parallel with electric capacity C15, Vout1 output is connecting resistance R2 one end respectively, resistance R3 one end, electric capacity C2 one end, transformer T first pin, another chip termination of resistance R2 FSDM0501 the 6th pin, another terminating diode of resistance R3 D2 negative pole, another terminating diode of electric capacity C2 D2 negative pole, diode D2 positive pole connects transformer T second pin and chip FSDM0501 first pin respectively, two pins of electric capacity C14 connect transformer T first pin and transformer T the 5th pin respectively, transformer T the 5th pin connects diode D5 positive pole, diode D5 negative pole connects inductance L 2 one end respectively, electric capacity C6 one end, electric capacity C7 one end, inductance L 2 other end connects fuse F1 one end respectively, electric capacity C8 one end, electric capacity C9 one end, transformer T the 6th pin, the electric capacity C6 other end, the electric capacity C7 other end, the electric capacity C8 other end, the equal ground connection of the electric capacity C9 other end, another termination 12V voltage output end of fuse F1, Vout2 output connects electric capacity C3 one end respectively, optocoupler PC17 the 3rd pin, chip FSDM0501 second pin, Zener diode D4 positive pole, electric capacity C4 one end, electric capacity C5 one end, transformer T the 4th pin, the electric capacity C3 other end connects chip FSDM0501 the 4th pin and optocoupler PC817 the 4th pin respectively, the electric capacity C4 other end, the electric capacity C5 other end connects chip FSDM0501 the 3rd pin respectively, diode D4 negative pole connects chip FSDM0501 the 3rd pin by resistance R4, chip FSDM0501 the 3rd pin connects diode D3 negative pole, diode D3 cathode connecting transformer T the 3rd pin, transformer T the 7th pin connects diode D6 positive pole, diode D6 negative pole connects electric capacity C10 one end, inductance L 3 one end respectively, inductance L 3 other end connects fuse F2 one end, electric capacity C11 one end, electric capacity C12 one end respectively, transformer T the 8th pin, the electric capacity C10 other end, the electric capacity C11 other end, the equal ground connection of the electric capacity C12 other end, another termination 5V voltage output end of fuse F2, optocoupler PC817 first pin connecting resistance R5 one end, the resistance R5 other end connects diode D6 negative pole and resistance R6 one end respectively, the resistance R6 other end connects optocoupler PC817 second pin, TL431 second pin, resistance R7 one end respectively, another termination capacitor C13 one end of resistance R7, the electric capacity C13 other end is connecting resistance R8 one end, resistance R9 one end, TL431 the 3rd pin respectively, another termination 5V voltage output end of resistance R8, the resistance R9 other end and the equal ground connection of TL431 first pin.
Further, described outdoor environment acquisition module comprises 3.3V power supply circuits, process chip STM8L101, debugging interface SWIM, Acquisition Circuit, display circuit and telecommunication circuit, described power circuit comprises resistance R10, resistance R10 mono-section connects 5V voltage, the resistance R10 other end connects electric capacity C16 one end respectively, electric capacity C17 one end, voltage stabilizing chip HT7533 second pin, the electric capacity C16 other end, the electric capacity C17 other end and the equal ground connection of voltage stabilizing chip HT7533 first pin, voltage stabilizing chip HT7533 the 3rd pin exports 3.3V voltage, voltage stabilizing chip HT753 the 3rd pin is by electric capacity C18 ground connection, electric capacity C19 and electric capacity C20 is in parallel with electric capacity C18 respectively, process chip STM8L101 the 8th pin connects 3.3V voltage, 3.3V voltage is by series resistance R13 and R14 ground connection, debugging interface SWIM connection handling chip STM8L101, display circuit comprises driving HT1621B and display screen, HT1621B is driven to input termination process chip STM8L101, HT1621B is driven to export termination display screen, Acquisition Circuit comprises sensor SH10, two outputs of sensor SH10 connect the 5th pin and the 6th pin of process chip STM8L101 respectively, 5th pin of process chip STM8L101 connects 3.3V voltage by resistance R11, 6th pin of process chip STM8L101 connects 3.3V voltage by resistance R12, described telecommunication circuit comprises 74HC14G, 74HC14G input first pin connects chip STM8L101 first pin, 74HC14G exports termination MAX3485 second pin and the 3rd pin, MAX3485 first pin connects chip STM8L101 second pin, MAX3485 the 7th pin is by resistance R15 ground connection, MAX3485 the 7th pin connects the first output by resistance R17, MAX3485 the 6th pin connects 3.3V voltage by resistance R16, MAX3485 the 6th pin connects the second output by resistance R18, first output and the second output are respectively by diode D8 and diode D7 ground connection.
Further, described voltage and current signal change-over circuit comprises resistance R19, resistance R19 mono-termination 0-5V voltage signal, the resistance R19 other end is connecting resistance R21 one end respectively, amplifier LM358 second pin, amplifier LM358 the 3rd pin is by resistance R20 ground connection, the resistance R21 other end connects amplifier LM358 first pin by slide rheostat R22, amplifier LM358 first pin connects amplifier LM358 the 6th pin by resistance R23, amplifier LM358 the 8th pin connects 12V voltage, amplifier LM358 the 5th pin is by resistance R25 ground connection, amplifier LM358 the 5th pin connects diode D9 negative pole by resistance R24, diode D9 plus earth, amplifier LM358 the 6th pin is connecting resistance R30 one end respectively, resistance R28 one end, the resistance R28 other end connects triode Q1 emitter stage by slide rheostat R29, the resistance R30 other end is connecting resistance R32 one end respectively, slide rheostat R31 one end, Zener diode D12 positive pole, another termination 12V voltage of resistance R32, the slide rheostat R31 other end and the equal ground connection of Zener diode D12 negative pole, amplifier LM358 the 7th pin connects triode Q1 base stage by resistance R26, triode Q1 colelctor electrode connects 12V voltage, triode Q1 emitter stage connects diode D10 positive pole respectively, resistance R27 one end, diode D10 negative pole connects triode Q1 base stage, the resistance R27 other end connects diode D9 negative pole and diode D11 positive pole respectively, diode D11 negative pole connects 4-20mA current signal by fuse.
Further, described technological parameter acquisition module comprises single-chip microcomputer, voltage reference circuit, switching signal control circuit and some process signal parameter acquisition circuit, voltage reference circuit adopts MAX6250 chip as core devices, switching signal control circuit utilizes optocoupler PC817 as control device, process signal parameter acquisition circuit comprises diode D16, diode D16 positive pole connects first input end, diode D16 negative pole connects RCV420 the 3rd pin by fuse, Zener diode D15 negative pole connects diode D16 negative pole, Zener diode D15 positive pole connects the second input and RCV420 first pin respectively, RCV420 second pin and the 5th pin ground connection, RCV420 the tenth pin and 11 pins all meet RV, RCV420 the 12 pin and 13 pins all connect OP07 first pin, OP07 first pin connects OP07 second pin, OP07 the 3rd pin is by resistance R34 ground connection, OP07 the 3rd pin meets RV by resistance R33, RCV420 the 15 pin and 14 pins all connect interface microcontroller, diode D13 negative pole connects RCV420 14 pin, diode D13 positive pole connects 5V voltage, diode D14 positive pole connects RCV420 14 pin, diode D14 minus earth.
The beneficial effects of the utility model are:
1, power module adopts FPS to isolate flyback sourse; adopt the chip design that pwm chip and high-voltage chip are integrated; have employed reaction type Flyback configuration; output multi-channel insulating power supply; power input part divide have employed X electric capacity, filtering that common mode inductance, integrated protection device (overvoltage and overcurrent protection) achieve various ways, thus from filter out power clutter root.Adopt RCD filter circuit, eliminate the spike interference of handoff procedure.Adopt isolation feedback arrangement, achieve output voltage stabilization, output (two) have employed fast recovery rectifier diode, realizes high efficiency rectification, and rear class adopts LC filtering, eliminates output ripple.
2, during the design of outdoor environment acquisition module, need consider installation volume and gather accurate field requirement, seem simple circuit so devise, first this circuit takes comprehensive Temperature Humidity Sensor and low-power scm and the efficient and mu balanced circuit of small volume in fact.This circuit main advantage is to achieve accurate humiture collection when small volume and low power consumption, and is communicated with controller by communication bus.The power consumption of this circuit can low 0.2mW.Temperature accuracy 0.2 degree, the error of humidity 1%,
3, process data acquisition module have employed independently that MCU is for collection site analog data, and such analog data can carry out on-the-spot algorithm process; Adopt the AD collecting unit in single-chip microcomputer to gather, achieve low cost collection; Have employed independent reference source and be supplied to single-chip microcomputer, realize high accuracy conversion, and ensure the stability of collection; Adopt RCV420 conversion chip, realize high accuracy conversion, and the measurement range expanded.
4, in signal output control circuit, adopt the low cost that amplifier is formed, small size, 0 stable ~ 5V turn 4 ~ 20MA circuit.First output degree connects amplifying circuit, realizes the amplification to signal, i.e. range extension, improves conversion accuracy simultaneously.Adopt and reference circuit, improve the precision of output 4 ~ 20MA.Adopt reaction type structure, Timeliness coverage deviation compensates.External filter circuit, eliminates the impact of anti-interference source in time.Output protecting function.
Accompanying drawing explanation
Fig. 1 is theory structure block diagram of the present utility model;
Fig. 2 is the utility model power module circuitry schematic diagram;
Fig. 3 is the utility model power supply room external environment acquisition module circuit theory diagrams;
Fig. 4 is the schematic diagram of the utility model voltage and current signal change-over circuit;
Fig. 5 is the schematic diagram of the utility model process signal parameter acquisition circuit.
Detailed description of the invention
The distributed coolant pump controller of central air conditioning as shown in Figure 1, comprise STM32F103V676 single-chip microcomputer and power module, single-chip microcomputer is by RS485 interface junction chamber external environment acquisition module, single-chip microcomputer connects isolated can circuit by CAN, isolated can circuit connects central air conditioner system master controller, single-chip microcomputer connects RS232 circuit and feedback data acquisition module by data wire, RS232 circuit connects debug port, realize debug function, single-chip microcomputer connects host computer communication module respectively by spi bus, technological parameter acquisition module and signal output control module, electric quantity acquisition module can gather the power consumption situation of refrigeration fan in refrigerating water pump control procedure, the instruction of master controller can be sent to the performers such as refrigeration host computer by-pass valve control by signal output control module, host computer communication module connects refrigeration host computer, realize the data communication with refrigeration host computer, voltage and current signal change-over circuit is equipped with in described signal output control module and feedback data acquisition module.
As shown in Figure 2, described power module comprises electric capacity C1, the two ends of electric capacity C1 connect live wire and the zero line of alternating current respectively, the two ends of electric capacity C1 respectively with two inputs of common mode choke L1, the input of two output protector 14D47110E of common mode choke L1 and earth terminal, the output and ground of protector 14D47110E connects two inputs of full-wave rectification bridge D1 respectively, two outputs of full-wave rectification bridge D1 connect Vout1 output and Vout2 output respectively, the two ends of electric capacity C15 connect Vout1 output and Vout2 output respectively, resistance R1 is in parallel with electric capacity C15, Vout1 output is connecting resistance R2 one end respectively, resistance R3 one end, electric capacity C2 one end, transformer T first pin, another chip termination of resistance R2 FSDM0501 the 6th pin, another terminating diode of resistance R3 D2 negative pole, another terminating diode of electric capacity C2 D2 negative pole, diode D2 positive pole connects transformer T second pin and chip FSDM0501 first pin respectively, two pins of electric capacity C14 connect transformer T first pin and transformer T the 5th pin respectively, transformer T the 5th pin connects diode D5 positive pole, diode D5 negative pole connects inductance L 2 one end respectively, electric capacity C6 one end, electric capacity C7 one end, inductance L 2 other end connects fuse F1 one end respectively, electric capacity C8 one end, electric capacity C9 one end, transformer T the 6th pin, the electric capacity C6 other end, the electric capacity C7 other end, the electric capacity C8 other end, the equal ground connection of the electric capacity C9 other end, another termination 12V voltage output end of fuse F1, Vout2 output connects electric capacity C3 one end respectively, optocoupler PC17 the 3rd pin, chip FSDM0501 second pin, Zener diode D4 positive pole, electric capacity C4 one end, electric capacity C5 one end, transformer T the 4th pin, the electric capacity C3 other end connects chip FSDM0501 the 4th pin and optocoupler PC817 the 4th pin respectively, the electric capacity C4 other end, the electric capacity C5 other end connects chip FSDM0501 the 3rd pin respectively, diode D4 negative pole connects chip FSDM0501 the 3rd pin by resistance R4, chip FSDM0501 the 3rd pin connects diode D3 negative pole, diode D3 cathode connecting transformer T the 3rd pin, transformer T the 7th pin connects diode D6 positive pole, diode D6 negative pole connects electric capacity C10 one end, inductance L 3 one end respectively, inductance L 3 other end connects fuse F2 one end, electric capacity C11 one end, electric capacity C12 one end respectively, transformer T the 8th pin, the electric capacity C10 other end, the electric capacity C11 other end, the equal ground connection of the electric capacity C12 other end, another termination 5V voltage output end of fuse F2, optocoupler PC817 first pin connecting resistance R5 one end, the resistance R5 other end connects diode D6 negative pole and resistance R6 one end respectively, the resistance R6 other end connects optocoupler PC817 second pin, TL431 second pin, resistance R7 one end respectively, another termination capacitor C13 one end of resistance R7, the electric capacity C13 other end is connecting resistance R8 one end, resistance R9 one end, TL431 the 3rd pin respectively, another termination 5V voltage output end of resistance R8, the resistance R9 other end and the equal ground connection of TL431 first pin.
Circuit adopts FPS to isolate flyback sourse; adopt the chip design that pwm chip and high-voltage chip are integrated; have employed reaction type Flyback configuration; output multi-channel insulating power supply; power input part divide have employed X electric capacity, filtering that common mode inductance, integrated protection device (overvoltage and overcurrent protection) achieve various ways, thus from filter out power clutter root.Adopt RCD filter circuit, eliminate the spike interference of handoff procedure.Adopt isolation feedback arrangement, achieve output voltage stabilization, output (two) have employed fast recovery rectifier diode, realizes high efficiency rectification, and rear class adopts LC filtering, eliminates output ripple.
As shown in Figure 3, described outdoor environment acquisition module comprises 3.3V power supply circuits, process chip STM8L101, debugging interface SWIM, Acquisition Circuit, display circuit and telecommunication circuit, described power circuit comprises resistance R10, resistance R10 mono-section connects 5V voltage, the resistance R10 other end connects electric capacity C16 one end respectively, electric capacity C17 one end, voltage stabilizing chip HT7533 second pin, the electric capacity C16 other end, the electric capacity C17 other end and the equal ground connection of voltage stabilizing chip HT7533 first pin, voltage stabilizing chip HT7533 the 3rd pin exports 3.3V voltage, voltage stabilizing chip HT753 the 3rd pin is by electric capacity C18 ground connection, electric capacity C19 and electric capacity C20 is in parallel with electric capacity C18 respectively, process chip STM8L101 the 8th pin connects 3.3V voltage, 3.3V voltage is by series resistance R13 and R14 ground connection, debugging interface SWIM connection handling chip STM8L101, display circuit comprises driving HT1621B and display screen, HT1621B is driven to input termination process chip STM8L101, HT1621B is driven to export termination display screen, Acquisition Circuit comprises sensor SH10, two outputs of sensor SH10 connect the 5th pin and the 6th pin of process chip STM8L101 respectively, 5th pin of process chip STM8L101 connects 3.3V voltage by resistance R11, 6th pin of process chip STM8L101 connects 3.3V voltage by resistance R12, described telecommunication circuit comprises 74HC14G, 74HC14G input first pin connects chip STM8L101 first pin, 74HC14G exports termination MAX3485 second pin and the 3rd pin, MAX3485 first pin connects chip STM8L101 second pin, MAX3485 the 7th pin is by resistance R15 ground connection, MAX3485 the 7th pin connects the first output by resistance R17, MAX3485 the 6th pin connects 3.3V voltage by resistance R16, MAX3485 the 6th pin connects the second output by resistance R18, first output and the second output are respectively by diode D8 and diode D7 ground connection.
During this modular design, need consider installation volume and gather accurate field requirement, seem simple circuit so devise, first this circuit takes comprehensive Temperature Humidity Sensor and low-power scm and the efficient and mu balanced circuit of small volume in fact.This circuit main advantage is to achieve accurate humiture collection when small volume and low power consumption, and is communicated with controller by communication bus.The power consumption of this circuit can low 0.2mW.Temperature accuracy 0.2 degree, the error of humidity 1%,
As shown in Figure 4, described voltage and current signal change-over circuit comprises resistance R19, resistance R19 mono-termination 0-5V voltage signal, the resistance R19 other end is connecting resistance R21 one end respectively, amplifier LM358 second pin, amplifier LM358 the 3rd pin is by resistance R20 ground connection, the resistance R21 other end connects amplifier LM358 first pin by slide rheostat R22, amplifier LM358 first pin connects amplifier LM358 the 6th pin by resistance R23, amplifier LM358 the 8th pin connects 12V voltage, amplifier LM358 the 5th pin is by resistance R25 ground connection, amplifier LM358 the 5th pin connects diode D9 negative pole by resistance R24, diode D9 plus earth, amplifier LM358 the 6th pin is connecting resistance R30 one end respectively, resistance R28 one end, the resistance R28 other end connects triode Q1 emitter stage by slide rheostat R29, the resistance R30 other end is connecting resistance R32 one end respectively, slide rheostat R31 one end, Zener diode D12 positive pole, another termination 12V voltage of resistance R32, the slide rheostat R31 other end and the equal ground connection of Zener diode D12 negative pole, amplifier LM358 the 7th pin connects triode Q1 base stage by resistance R26, triode Q1 colelctor electrode connects 12V voltage, triode Q1 emitter stage connects diode D10 positive pole respectively, resistance R27 one end, diode D10 negative pole connects triode Q1 base stage, the resistance R27 other end connects diode D9 negative pole and diode D11 positive pole respectively, diode D11 negative pole connects 4-20mA current signal by fuse.
As shown in Figure 5, described technological parameter acquisition module comprises single-chip microcomputer C8051F001, voltage reference circuit, switching signal control circuit and some process signal parameter acquisition circuit, voltage reference circuit adopts MAX6250 chip as core devices, switching signal control circuit utilizes optocoupler PC817 as control device, process signal parameter acquisition circuit comprises diode D16, diode D16 positive pole connects first input end, diode D16 negative pole connects RCV420 the 3rd pin by fuse, Zener diode D15 negative pole connects diode D16 negative pole, Zener diode D15 positive pole connects the second input and RCV420 first pin respectively, RCV420 second pin and the 5th pin ground connection, RCV420 the tenth pin and 11 pins all meet RV, RCV420 the 12 pin and 13 pins all connect OP07 first pin, OP07 first pin connects OP07 second pin, OP07 the 3rd pin is by resistance R34 ground connection, OP07 the 3rd pin meets RV by resistance R33, RCV420 the 15 pin and 14 pins all connect interface microcontroller, diode D13 negative pole connects RCV420 14 pin, diode D13 positive pole connects 5V voltage, diode D14 positive pole connects RCV420 14 pin, diode D14 minus earth, single-chip microcomputer C8051F001 output connects STM32F103V676 single-chip microcomputer.
Have employed independently that MCU is for collection site analog data, such analog data can carry out on-the-spot algorithm process and adopt the AD collecting unit in single-chip microcomputer to gather, and achieves low cost collection.Have employed independent reference source and be supplied to single-chip microcomputer, realize high accuracy conversion, and ensure the stability of collection.Adopt RCV420 conversion chip, realize high accuracy 4 ~ 20MA and change 0 ~ 5V, and the measurement range expanded.Improve precision.Peripheral employing filter circuit, eliminates interference.
Except structure described in the utility model, all the other are prior art.
The above is preferred embodiment of the present utility model; for those skilled in the art; under the prerequisite not departing from the utility model principle, can also make some improvements and modifications, these improvements and modifications are also regarded as protection domain of the present utility model.
Claims (5)
1. the distributed coolant pump controller of central air conditioning, it is characterized in that, comprise STM32F103V676 single-chip microcomputer and power module, single-chip microcomputer is by RS485 interface junction chamber external environment acquisition module, single-chip microcomputer connects isolated can circuit by CAN, single-chip microcomputer connects RS232 circuit and feedback data acquisition module by data wire, single-chip microcomputer connects host computer communication module, technological parameter acquisition module and signal output control module respectively by spi bus, is equipped with voltage and current signal change-over circuit in described signal output control module and feedback data acquisition module.
2. the distributed coolant pump controller of central air conditioning according to claim 1, it is characterized in that, described power module comprises electric capacity C1, the two ends of electric capacity C1 connect live wire and the zero line of alternating current respectively, the two ends of electric capacity C1 respectively with two inputs of common mode choke L1, the input of two output protector 14D47110E of common mode choke L1 and earth terminal, the output and ground of protector 14D47110E connects two inputs of full-wave rectification bridge D1 respectively, two outputs of full-wave rectification bridge D1 connect Vout1 output and Vout2 output respectively, the two ends of electric capacity C15 connect Vout1 output and Vout2 output respectively, resistance R1 is in parallel with electric capacity C15, Vout1 output is connecting resistance R2 one end respectively, resistance R3 one end, electric capacity C2 one end, transformer T first pin, another chip termination of resistance R2 FSDM0501 the 6th pin, another terminating diode of resistance R3 D2 negative pole, another terminating diode of electric capacity C2 D2 negative pole, diode D2 positive pole connects transformer T second pin and chip FSDM0501 first pin respectively, two pins of electric capacity C14 connect transformer T first pin and transformer T the 5th pin respectively, transformer T the 5th pin connects diode D5 positive pole, diode D5 negative pole connects inductance L 2 one end respectively, electric capacity C6 one end, electric capacity C7 one end, inductance L 2 other end connects fuse F1 one end respectively, electric capacity C8 one end, electric capacity C9 one end, transformer T the 6th pin, the electric capacity C6 other end, the electric capacity C7 other end, the electric capacity C8 other end, the equal ground connection of the electric capacity C9 other end, another termination 12V voltage output end of fuse F1, Vout2 output connects electric capacity C3 one end respectively, optocoupler PC17 the 3rd pin, chip FSDM0501 second pin, Zener diode D4 positive pole, electric capacity C4 one end, electric capacity C5 one end, transformer T the 4th pin, the electric capacity C3 other end connects chip FSDM0501 the 4th pin and optocoupler PC817 the 4th pin respectively, the electric capacity C4 other end, the electric capacity C5 other end connects chip FSDM0501 the 3rd pin respectively, diode D4 negative pole connects chip FSDM0501 the 3rd pin by resistance R4, chip FSDM0501 the 3rd pin connects diode D3 negative pole, diode D3 cathode connecting transformer T the 3rd pin, transformer T the 7th pin connects diode D6 positive pole, diode D6 negative pole connects electric capacity C10 one end, inductance L 3 one end respectively, inductance L 3 other end connects fuse F2 one end, electric capacity C11 one end, electric capacity C12 one end respectively, transformer T the 8th pin, the electric capacity C10 other end, the electric capacity C11 other end, the equal ground connection of the electric capacity C12 other end, another termination 5V voltage output end of fuse F2, optocoupler PC817 first pin connecting resistance R5 one end, the resistance R5 other end connects diode D6 negative pole and resistance R6 one end respectively, the resistance R6 other end connects optocoupler PC817 second pin, TL431 second pin, resistance R7 one end respectively, another termination capacitor C13 one end of resistance R7, the electric capacity C13 other end is connecting resistance R8 one end, resistance R9 one end, TL431 the 3rd pin respectively, another termination 5V voltage output end of resistance R8, the resistance R9 other end and the equal ground connection of TL431 first pin.
3. the distributed coolant pump controller of central air conditioning according to claim 1 and 2, it is characterized in that, described outdoor environment acquisition module comprises 3.3V power supply circuits, process chip STM8L101, debugging interface SWIM, Acquisition Circuit, display circuit and telecommunication circuit, described power circuit comprises resistance R10, resistance R10 mono-section connects 5V voltage, the resistance R10 other end connects electric capacity C16 one end respectively, electric capacity C17 one end, voltage stabilizing chip HT7533 second pin, the electric capacity C16 other end, the electric capacity C17 other end and the equal ground connection of voltage stabilizing chip HT7533 first pin, voltage stabilizing chip HT7533 the 3rd pin exports 3.3V voltage, voltage stabilizing chip HT753 the 3rd pin is by electric capacity C18 ground connection, electric capacity C19 and electric capacity C20 is in parallel with electric capacity C18 respectively, process chip STM8L101 the 8th pin connects 3.3V voltage, 3.3V voltage is by series resistance R13 and R14 ground connection, debugging interface SWIM connection handling chip STM8L101, display circuit comprises driving HT1621B and display screen, HT1621B is driven to input termination process chip STM8L101, HT1621B is driven to export termination display screen, Acquisition Circuit comprises sensor SH10, two outputs of sensor SH10 connect the 5th pin and the 6th pin of process chip STM8L101 respectively, 5th pin of process chip STM8L101 connects 3.3V voltage by resistance R11, 6th pin of process chip STM8L101 connects 3.3V voltage by resistance R12, described telecommunication circuit comprises 74HC14G, 74HC14G input first pin connects chip STM8L101 first pin, 74HC14G exports termination MAX3485 second pin and the 3rd pin, MAX3485 first pin connects chip STM8L101 second pin, MAX3485 the 7th pin is by resistance R15 ground connection, MAX3485 the 7th pin connects the first output by resistance R17, MAX3485 the 6th pin connects 3.3V voltage by resistance R16, MAX3485 the 6th pin connects the second output by resistance R18, first output and the second output are respectively by diode D8 and diode D7 ground connection.
4. the distributed coolant pump controller of central air conditioning according to claim 1 and 2, it is characterized in that, described voltage and current signal change-over circuit comprises resistance R19, resistance R19 mono-termination 0-5V voltage signal, the resistance R19 other end is connecting resistance R21 one end respectively, amplifier LM358 second pin, amplifier LM358 the 3rd pin is by resistance R20 ground connection, the resistance R21 other end connects amplifier LM358 first pin by slide rheostat R22, amplifier LM358 first pin connects amplifier LM358 the 6th pin by resistance R23, amplifier LM358 the 8th pin connects 12V voltage, amplifier LM358 the 5th pin is by resistance R25 ground connection, amplifier LM358 the 5th pin connects diode D9 negative pole by resistance R24, diode D9 plus earth, amplifier LM358 the 6th pin is connecting resistance R30 one end respectively, resistance R28 one end, the resistance R28 other end connects triode Q1 emitter stage by slide rheostat R29, the resistance R30 other end is connecting resistance R32 one end respectively, slide rheostat R31 one end, Zener diode D12 positive pole, another termination 12V voltage of resistance R32, the slide rheostat R31 other end and the equal ground connection of Zener diode D12 negative pole, amplifier LM358 the 7th pin connects triode Q1 base stage by resistance R26, triode Q1 colelctor electrode connects 12V voltage, triode Q1 emitter stage connects diode D10 positive pole respectively, resistance R27 one end, diode D10 negative pole connects triode Q1 base stage, the resistance R27 other end connects diode D9 negative pole and diode D11 positive pole respectively, diode D11 negative pole connects 4-20mA current signal by fuse.
5. the distributed coolant pump controller of central air conditioning according to claim 1 and 2, it is characterized in that, described technological parameter acquisition module comprises single-chip microcomputer, voltage reference circuit, switching signal control circuit and some process signal parameter acquisition circuit, voltage reference circuit adopts MAX6250 chip as core devices, switching signal control circuit utilizes optocoupler PC817 as control device, process signal parameter acquisition circuit comprises diode D16, diode D16 positive pole connects first input end, diode D16 negative pole connects RCV420 the 3rd pin by fuse, Zener diode D15 negative pole connects diode D16 negative pole, Zener diode D15 positive pole connects the second input and RCV420 first pin respectively, RCV420 second pin and the 5th pin ground connection, RCV420 the tenth pin and 11 pins all meet RV, RCV420 the 12 pin and 13 pins all connect OP07 first pin, OP07 first pin connects OP07 second pin, OP07 the 3rd pin is by resistance R34 ground connection, OP07 the 3rd pin meets RV by resistance R33, RCV420 the 15 pin and 14 pins all connect interface microcontroller, diode D13 negative pole connects RCV420 14 pin, diode D13 positive pole connects 5V voltage, diode D14 positive pole connects RCV420 14 pin, diode D14 minus earth.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420830820.9U CN204478386U (en) | 2014-12-25 | 2014-12-25 | The distributed coolant pump controller of central air conditioning |
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| CN201420830820.9U CN204478386U (en) | 2014-12-25 | 2014-12-25 | The distributed coolant pump controller of central air conditioning |
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| CN201420830820.9U Active CN204478386U (en) | 2014-12-25 | 2014-12-25 | The distributed coolant pump controller of central air conditioning |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105156316A (en) * | 2015-09-28 | 2015-12-16 | 吉林大学 | Testing device for performance of piezoelectric pump |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105156316A (en) * | 2015-09-28 | 2015-12-16 | 吉林大学 | Testing device for performance of piezoelectric pump |
| CN105156316B (en) * | 2015-09-28 | 2017-03-29 | 吉林大学 | Piezoelectric pump performance testing device |
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Effective date of registration: 20170303 Address after: 250021 Ji'nan, Central District, Shandong City Road, the southern part of the shop No. 18 Patentee after: Shandong Jinzhou Kerui Energy Technology Co. Ltd. Address before: 250024 Ji'nan City, Central District, Shandong sunshine new road, No. 69 Patentee before: Li Gang |