CN2345888Y

CN2345888Y - No-valve type fan coil pipe temp. controller

Info

Publication number: CN2345888Y
Application number: CN98230194U
Authority: CN
Inventors: 彭建华
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-02-23
Filing date: 1998-02-23
Publication date: 1999-10-27
Anticipated expiration: 2008-02-23

Abstract

The utility model relates to a no-valve type fan coil pipe temperature controller, which is composed of a regulator and an executor. The regulator processes the signals and outputs to the executor by the CPU and the peripheral circuits which are composed of a sampling sensing circuit, a setting adjusting circuit and a display circuit and displays the signals. The executor provides AC and DC power supply for complete circuits and transmits the signals from the regulator into the signal processing circuit to be processed and to be amplified by a drive circuit in order to drive a relay unit or a controlled silicon unit and control a fan coil pipe motor. The utility model has the advantages of reasonable design, reliable operation, high automation and excellent performance.

Description

Valveless formula fan coil temperature controller

The utility model relates to the control device of the end-equipment fan coil of central air-conditioning.

The present common fan coil temperature controller that uses is three speed switch and dynamoelectric water valve temperature controller, three speed switch is made up of the switch of three parallel connections, can control opening and closing of three road electric weight simultaneously, it is one the tunnel open-minded that three switches can only have at most simultaneously, the shortcoming of this three speed switch is: can not switch the duty of fan coil automatically, central air-conditioning uses this switch to make controller, room temperature instability, waste energy.The dynamoelectric water valve temperature controller is made up of temperature controller and dynamoelectric water valve, respond to room temperature and temperature is set by temperature controller, the switching of control dynamoelectric water valve, reach the purpose of regulating controlled fan coil energy, this dynamoelectric water valve complex structure, fragile, easy-maintaining not, and the chilled water system complex structure of air-conditioning system, fault is many, poor reliability.

The purpose of the utility model aims to provide the control of a kind of fully-automatic intelligent, the valveless formula fan coil temperature controller of energy adjustment, power and energy saving, thermostatic control, easy and simple to handle, reliable operation, long service life, simplification air-conditioner water system automatically.

Technical solution of the present utility model is: this valveless formula fan coil temperature controller is made of adjuster and actuator, be disome formula structure, adjuster comprises central microprocessor, the sense samples circuit, regulating circuit is set, display circuit, the sense samples circuit will adopt temperature signal and regulating circuit is set central microprocessor is all sent in user's requirement, temperature and various running status that the display circuit explicit user is provided with, central microprocessor is after peripheral circuit constitutes whole adjuster sampled signal and user's signalization are handled, to actuator output control signal; Actuator comprises alterating and direct current source circuit and the signal processing circuit that is connected successively, drive circuit, relay group, power of alterating and direct current provides working power for adjuster and actuator, the signal that signal processing circuit is sent adjuster here is handled and is decomposed after drive circuit amplifies, the work of driving relay, control fan coil motor.

The utility model is compared with prior art, has following remarkable advantage:

1, adopt exclusive valveless formula structure, do not have mechanical moving component, do not have mechanical pipeline with air-conditioning system and be connected, design and installation is very simple and convenient, long service life, and reliability is high, and service free is safeguarded at ordinary times;

2, fully-automatic intelligent control, to the exhausted not damaged of motor, the temperature step-less adjustment, simple to operation, real constant temperature, comfortable convenience prevent to produce " air conditioner disease ";

3, automatic energy adjustment, waste because this temperature controller can be regulated the cold and hot amount output of fan coil at any time according to room cooling and heating load and the temperature that presets, can not caused in the power and energy saving, during operation at part load, reduces main engine power synchronously, significantly reduces operating cost;

4, simplify air-conditioner water system, adopt the valveless temperature controller, system can be as selecting the temperature-control electric water valve for use, become complicated variable flow system, casting off the dynamoelectric water valve that complex structure damages again easily once and for all, optimize air-conditioner water system, is an important feature of valveless temperature controller.

Therefore, the utility model is a kind of intelligent controller that is applied to the end-equipment fan coil of central air-conditioning, can be to four kinds of energy output states of three fast fan coils: stop, low-grade, middle-grade and high-grade implementation controls automatically, automatically regulate the air quantity of fan coil to control cold and hot exchange capacity according to the temperature of user's setting and the cooling and heating load in room, the temperature in room is controlled at about the temperature of user's setting, both improved the quality of air-conditioning, again can conserve energy.

The utility model is reasonable in design, automaticity is high, reliable operation, saving energy, reduce cost, function admirable.

Fig. 1 is the utility model structured flowchart;

Fig. 2 is adjuster circuit figure;

Fig. 3 is executor circuit figure;

Fig. 4 is the utility model user mode parametric amplifier figure.

The utility model is described in further detail below in conjunction with accompanying drawing:

Referring to Fig. 1, the utility model is by adjuster 1 and actuator 2 two parts are organic constitutes, adjuster 1 comprises central microprocessor and peripheral circuit sense samples circuit thereof, regulating circuit is set, display circuit, after temperature sampling signal and the processing of user's signalization, the output control signal is given actuator, display circuit shows that then the user of central microprocessor is provided with temperature and various running status, actuator 2 comprises alterating and direct current source circuit and signal processing circuit, drive circuit, the relay group, power of alterating and direct current provides working power of the present utility model, after signal processing circuit is handled decomposition with the control signal of adjuster 1 output, amplify to drive circuit, drive circuit output is through relay group control fan coil 3 motors 4.

Referring to Fig. 2, adjuster circuit figure, central microprocessor adopts AT89C2051, is the control centre of this device, with other elements, constitutes functional circuit, with resistance R ₃₁, R ₃₂, capacitor C ₄, diode D ₉, D ₁₀With thermistor R ₂₅Constitute the sense samples circuit, collecting temperature signal, central microprocessor and key switch K ₂-D ₅, resistance R ₂₇-R ₃₀Formation is provided with regulating circuit, and temperature and operational mode are set.By register U ₂, U ₃, U ₄, eight n segment display n S ₁, S ₂, resistance R ₁-R ₂₄, light emitting diode D ₁-D ₈Constitute display circuit, displays temperature and running status.By diode D ₁₁-D ₁₃, resistance R ₃₅-R ₄₀Constitute the synthetic of output control signal, and send after the signal that central microprocessor sends handled.

Referring to Fig. 3 executor circuit figure, by protective tube F ₁, transformer B.Commutation diode D ₁₄-D ₁₇, resistance R ₄₁Capacitor C ₅, C ₆, voltage-stabiliser tube D ₁₈Constitute power circuit, can provide+5V ,+two kinds of constant direct current sources of 12V and the work of 220A CV-kind AC power confession the utility model whole circuit, be U5:A, U5:B, U5:C and resistance R by integrated circuit LM324 ₄₅-R ₄₉Constitute signal processing circuit, the synthetic control signal that adjuster 1 is sent here is decomposed, by triode S ₃-S ₅And resistance ₄₂, R ₄₃, R ₄₄, diode D ₁₉-D ₂₈Constitute drive circuit, small-signal is amplified, drive relay group J ₁-J ₃Work, relay road J ₁-J ₃Export 220ACV voltage on different binding posts its contact.

Referring to Fig. 4 user mode reference diagram, Fig. 4 provide adjuster 1, actuator 2 ,～220V power supply, fan coil 3 motors 4 concrete annexation and binding post line map each other.From figure, also can further find out the control relation between them.

Claims

1, a kind of valveless formula fan coil temperature controller, it is characterized in that constituting by adjuster and actuator, be disome formula structure, adjuster comprises central microprocessor, the sense samples circuit, regulating circuit is set, display circuit, the sense samples circuit will adopt temperature signal and regulating circuit is set central microprocessor is all sent in user's requirement, temperature and various running status that the display circuit explicit user is provided with, central microprocessor constitutes whole adjuster with peripheral circuit, after sampled signal and the processing of user's signalization, to actuator output control signal; Actuator comprises alterating and direct current source circuit and the signal processing circuit that is connected successively, drive circuit, relay group, power of alterating and direct current provides working power for adjuster and actuator, the signal that signal processing circuit is sent adjuster here is handled and is decomposed after drive circuit amplifies, the work of driving relay, control fan coil motor.