Fan coil control system
Technical field
The utility model relates to electronic information technical field, in particular to a kind of fan coil control system.
Background technology
Fan coil is the end prod of central air-conditioning, by heat exchanger, water pipe, filter, fan, drip tray, air bleeding valve, support forms, and its operation principle is the air in constantly recirculation room, place in unit, make air by cooled (heating) after cold water (hot water) coil pipe, to keep the constant of room temperature.And existing fan coil is directly actuated by controller disposed in the interior, then in the process of installing fan coil, each controlling functions of corresponding controller needs to connect a wire between controller and fan coil, thus causes the installation process of existing fan coil more complicated.
Utility model content
The purpose of this utility model is to provide a kind of fan coil control system, directly actuated by controller disposed in the interior to improve existing fan coil, then in the process of installing fan coil, each controlling functions of corresponding controller needs to connect a wire between controller and fan coil, thus causes the problem that the installation process of existing fan coil is more complicated.
The utility model is achieved in that
A kind of fan coil control system, comprise air conditioner temperature controller, fan coil and be arranged at the fan coil controller of described fan coil, described fan coil controller is electrically connected with described air conditioner temperature controller, described fan coil is electrically connected with fan coil drive circuit, and described fan coil drive circuit is electrically connected with described fan coil controller.
Further, described fan coil is connected with water pipe, and described water pipe is provided with motor-driven valve, and described motor-driven valve is electrically connected with motor-driven valve drive circuit, and described motor-driven valve drive circuit is electrically connected with described fan coil controller.Fan coil operationally, required water can pass through the inside that connected water pipe flow into fan coil, and the motor-driven valve be arranged on water pipe can control flowing or the cut-off of water in water pipe, then after motor-driven valve drive circuit is electrically connected with described fan coil controller, then make the flowing of the water in water pipe and cut-off can be controlled by described fan coil controller.
Further, described fan coil controller comprises power supply, signal-isolated transmission circuit, the first microcontroller and relay, and described first microcontroller is electrically connected with described signal-isolated transmission circuit and described relay respectively.Signal-isolated transmission circuit have antijamming capability strong, export with export between insulate and the advantage of one-way transmission, what it is such that described first microcontroller can be stable receives control signal, thus improves the job stability of described fan coil controller.
As a kind of embodiment, described signal-isolated transmission circuit comprises optocoupler, the first resistance and the second resistance, described first resistance is connected in series with the anode tap of described optocoupler, described second resistance is connected in series with the cathode terminal of described optocoupler, the collector and emitter of described optocoupler is electrically connected with described first microcontroller respectively, and described first resistance is connected with described power electric respectively with the second resistance.
Optocoupler take light as the device that medium carrys out transmission of electric signals, usually photophore and light-receiving device is encapsulated in same shell.When input power up signal, photophore emits beam, and light-receiving device just produces photoelectric current after accepting light, flows out from output, thus achieves " electricity-light-electricity " conversion.And when described first resistance of anode tap serial connection at described optocoupler, after the cathode terminal of described optocoupler is electrically connected the second resistance, when described signal-isolated transmission circuit does not have a signal transmission, the electrical potential difference between described first resistance and described second resistance is less than the conducting voltage of described optocoupler.And when the described signal-isolated transmission circuit transmissioning signal of needs, then by controlling the electrical potential difference between described first resistance and described second resistance, be the conducting voltage that described electrical potential difference is greater than described optocoupler, make described optocoupler can send pulse signal to described first microcontroller.
Further, described fan coil controller also comprises the rectifier bridge for rectification, and the output of described rectifier bridge is electrically connected with described first resistance and the second resistance respectively, and the input of described rectifier bridge is connected with described power electric.
Further, described fan coil controller also comprises light emitting diode, and described light emitting diode is connected with described power electric.Described light emitting diode is can continuous illumination in energising, is beneficial to technical staff and judges whether described fan coil controller is in energising duty.
Further, described air conditioner temperature controller comprises the second microcontroller, signal output apparatus and control signal loader; Described signal output apparatus and control signal loader are electrically connected with described second microcontroller respectively.Described signal output apparatus is used for, after the signal receiving described second microcontroller transmission, controlling described signal-isolated transmission circuit carry out transmission pulse signal by the electrical potential difference controlled between described first resistance and described second resistance.
As a kind of embodiment, described signal output apparatus comprises for the rectifier bridge of rectification, three terminal regulator, the 3rd resistance, the 4th resistance, the first electric capacity, the second electric capacity and triode, the input of described rectifier bridge is electrically connected with the earth terminal of described three terminal regulator and the emitter stage of triode respectively, the output of described rectifier bridge is electrically connected with the input of described three terminal regulator, described rectification bridge output end is also electrically connected with the colelctor electrode of triode by the 3rd resistance, the base stage of described triode is connected in series with described 4th resistance, the positive pole of described first electric capacity is electrically connected with the output of described three terminal regulator, the negative pole of described first electric capacity is electrically connected with the emitter stage of described triode, described second capacitance cathode is electrically connected with the output of described three terminal regulator, described second electric capacity negative pole is respectively with the emitter stage of described triode with connect extreme electrical connection.
And after described second microcontroller transmits control signal, described triode is in conducting state, thus make the electrical potential difference between the first resistance and the second resistance be greater than the conducting voltage of described optocoupler, thus optocoupler is made to send pulse signal to described first microcontroller.
As a kind of embodiment, described control signal loader is matrix keyboard.
As another kind of embodiment, described control signal loader is infrared signal receiver.When signal loader is infrared signal receiver, be beneficial to operating personnel by infrared signal operated from a distance.
The fan coil control system that the utility model embodiment provides is by directly arranging fan coil controller at fan coil place, and make the mode that described fan coil controller is electrically connected with described air conditioner temperature controller, and then make it possible to be transmitted control signal to described fan coil controller by described air conditioner temperature controller, the described fan coil controller being arranged at fan coil place is made directly to control the work of fan coil again, thus to improve existing fan coil be directly actuated by controller disposed in the interior, then in the process of installing fan coil, each controlling functions of corresponding controller needs to connect a wire between controller and fan coil, thus cause the problem that the installation process of existing fan coil is more complicated.
Accompanying drawing explanation
Fig. 1 shows the structured flowchart of the fan coil control system that the utility model embodiment provides;
Fig. 2 shows the structured flowchart of the fan coil controller in the fan coil control system that the utility model embodiment provides;
Fig. 3 shows the circuit theory diagrams of the fan coil controller in the fan coil control system that the utility model embodiment provides;
Fig. 4 shows the structured flowchart of the air conditioner temperature controller in the fan coil control system that the utility model embodiment provides;
Fig. 5 shows the schematic diagram of signal output apparatus in the air conditioner temperature controller that the utility model embodiment provides.
Reference numeral:
Air conditioner temperature controller 101, fan coil controller 201, fan coil 301, motor-driven valve 401; First microcontroller 202, signal-isolated transmission circuit 203, relay 204, power supply 205; Second microcontroller 302, control signal loader 303, signal output apparatus 304; First resistance R1, the second resistance R2, the 3rd resistance R3, the 4th resistance R4, triode Q1, the first electric capacity C1, the second electric capacity C2, three terminal regulator VR.
Detailed description of the invention
Also by reference to the accompanying drawings the utility model is described in further detail below by specific embodiment.
Refer to Fig. 1, a kind of fan coil control system that the utility model embodiment provides, comprise air conditioner temperature controller 101, fan coil 301 and be arranged at the fan coil controller 201 of described fan coil 301.Wherein, described air conditioner temperature controller 101 is for transmitting control signal to described fan coil controller 201, and the control signal of described fan coil controller 201 then for sending according to the described air conditioner temperature controller 101 received controls described fan coil 301.Then described fan coil controller 201 is electrically connected with described air conditioner temperature controller 101, described fan coil 301 is electrically connected with fan coil drive circuit, described fan coil drive circuit is electrically connected with described fan coil controller 201, thus makes described air conditioner temperature controller 101 can control fan coil 301 by described fan coil controller 201.
In practice process, described fan coil 301 is connected with water pipe, and described water pipe is provided with motor-driven valve 401, and described motor-driven valve 401 is electrically connected with motor-driven valve drive circuit, and described motor-driven valve drive circuit is electrically connected with described fan coil controller 201.Fan coil 301 operationally, required water can pass through the inside that connected water pipe flow into fan coil, and the motor-driven valve 401 be arranged on water pipe can control flowing or the cut-off of water in water pipe, then after motor-driven valve drive circuit is electrically connected with described fan coil controller 201, then make the flowing of the water in water pipe and cut-off can be controlled by described fan coil controller 201.
In practice process, as Figure 2-3, as a kind of embodiment, described fan coil controller 201 comprises power supply 205, signal-isolated transmission circuit 203, first microcontroller 202 and relay 204, and described first microcontroller 202 is electrically connected with described signal-isolated transmission circuit 203 and described relay 204 respectively.Wherein the first microcontroller 202 is for sending the signal of telecommunication to described relay 204, makes relay 204 conducting fan coil drive circuit or motor-driven valve drive circuit.
Described signal-isolated transmission circuit 203 is then for isolating signal transmission, its have antijamming capability strong, export with export between insulate and the advantage of one-way transmission, what make that described first microcontroller 202 can be stable receives control signal, is beneficial to the job stability promoting described fan coil controller 201.
In practice process, as a kind of embodiment, described signal-isolated transmission circuit 203 comprises optocoupler, the first resistance R1 and the second resistance R2, described first resistance R1 is connected in series with the anode tap of described optocoupler, described second resistance R2 is connected in series with the cathode terminal of described optocoupler, the collector and emitter of described optocoupler is electrically connected with described first microcontroller 202 respectively, and described first resistance R1 and the second resistance R2 is electrically connected with described power supply 205 respectively.
Optocoupler take light as the device that medium carrys out transmission of electric signals, usually photophore and light-receiving device is encapsulated in same shell.When input power up signal, photophore emits beam, and light-receiving device just produces photoelectric current after accepting light, flows out from output, thus achieves " electricity-light-electricity " conversion.And as the described first resistance R1 of anode tap serial connection at described optocoupler, after the cathode terminal of described optocoupler is electrically connected the second resistance R2, when described signal-isolated transmission circuit 203 does not have signal transmission, electrical potential difference between described first resistance R1 and described second resistance R2 is less than the conducting voltage of described optocoupler, then described optocoupler is in cut-off state.And when the described signal-isolated transmission circuit of needs 203 signal transmission, then by controlling the electrical potential difference between described first resistance R1 and described second resistance R2, make described electrical potential difference be greater than the conducting voltage of described optocoupler, make described optocoupler can send pulse signal to described first microcontroller 202.
Described fan coil controller 201 also comprises the rectifier bridge for rectification, and the output of described rectifier bridge is electrically connected with described first resistance R1 and the second resistance R2 respectively, and the input of described rectifier bridge is connected with described power electric.Described fan coil controller also comprises light emitting diode, and described light emitting diode is electrically connected with described power supply 205.
And in practice process, as shown in Figure 4, described air conditioner temperature controller comprises the second microcontroller 302, signal output apparatus 304 and control signal loader 303; Described signal output apparatus 304 and control signal loader 303 are electrically connected with described second microcontroller 302 respectively.
And preferably, as shown in Figure 5, described signal output apparatus 304 comprises rectifier bridge, three terminal regulator VR, the 3rd resistance R3, the 4th resistance R4, the first electric capacity C1, the second electric capacity C2 and triode Q1 for rectification, the input of described rectifier bridge is electrically connected with the earth terminal of described three terminal regulator VR and the emitter stage of triode Q1 respectively, the output of described rectifier bridge is electrically connected with the input of described three terminal regulator VR, described rectification bridge output end is also electrically connected with the colelctor electrode of triode Q1 by the 3rd resistance R3, the base stage of described triode Q1 is connected in series with described 4th resistance R4, the positive pole of described first electric capacity C1 is electrically connected with the output of described three terminal regulator VR, the negative pole of described first electric capacity C1 is electrically connected with the emitter stage of described triode Q1, the positive pole of described second electric capacity C2 is electrically connected with the output of described three terminal regulator VR, the negative pole of described second electric capacity C2 is respectively with the emitter stage of described triode Q1 with connect extreme electrical connection.
And after described second microcontroller 302 transmits control signal, described triode Q1 is in conducting state, thus make the electrical potential difference between the first resistance R1 and the second resistance R2 be greater than the conducting voltage of described optocoupler, thus optocoupler is made to send pulse signal to described first microcontroller 202.
It should be noted that, in practice process, the embodiment of described control signal loader 303 has multiple, such as, in order to realize in-plant control inputs, described control signal loader 303 can be matrix keyboard, and in order to realize remote control inputs, described control signal loader 303 can be infrared signal receiver.
The fan coil control system that the utility model embodiment provides is by directly arranging fan coil controller 201 at fan coil 301 place, and make the mode that described fan coil controller 201 is electrically connected with described air conditioner temperature controller 101, and then make it possible to be transmitted control signal to described fan coil controller 201 by described air conditioner temperature controller 101, the described fan coil controller 201 being arranged at fan coil 301 place is made directly to control the work of fan coil 301 again, thus to improve existing fan coil be directly actuated by controller disposed in the interior, then in the process of installing fan coil, each controlling functions of corresponding controller needs to connect a wire between controller and fan coil, thus cause the problem that the installation process of existing fan coil is more complicated.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.