CN204757278U - Central air conditioning fan coil temperature controller - Google Patents
Central air conditioning fan coil temperature controller Download PDFInfo
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- CN204757278U CN204757278U CN201520431353.7U CN201520431353U CN204757278U CN 204757278 U CN204757278 U CN 204757278U CN 201520431353 U CN201520431353 U CN 201520431353U CN 204757278 U CN204757278 U CN 204757278U
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Abstract
The utility model discloses a central air conditioning fan coil temperature controller comprises microcontroller, fan water valve control unit, temperature data collection unit, button processing unit, pyxos FT communication unit, coupling isolation unit, power management unit and LCD display element. The utility model discloses except that the control function and communication function that have general temperature controller, increase pyxos FT communication unit and coupling isolation unit through the design for temperature controller communication bus link has the power supply function, and link communication ports does not divide polarity, field bus communication speed can reach 312.5KBPS, improves control system's real -time greatly.
Description
Technical field
The utility model relates to attemperating unit, is specifically related to a kind of central air conditioning fan coil unit temperature controller.
Background technology
At present, the central air conditioner temp. controller of common band field bus communication function, power port and COM1 independently design, and to be communicated twisted pair line connection respectively by 2 core power lines with 2 cores, and COM1 connects and has polarity.Need during such temperature controller connected network communication to lay power supply and communication link respectively, easily make mistakes when wiring is installed; And field bus communication speed is not high, usually at 9600BPS.
Utility model content
Utility model object: the purpose of this utility model is to solve above the deficiencies in the prior art, a kind of central air conditioning fan coil unit temperature controller with communication link function of supplying power is provided, except the controlling functions with general temperature controller and communication function, communication bus link has function of supplying power, and link not polarity.
Technical scheme: central air conditioning fan coil unit temperature controller described in the utility model, be made up of microcontroller, blower fan water valve control unit, temperature collecting cell, keystroke handling unit, PyxosFT communication unit, coupling isolated location, PMU and LCD display unit
Described microcontroller is connected with LCD display unit with microcontroller, blower fan water valve control unit, temperature collecting cell, keystroke handling unit, PyxosFT communication unit respectively, real time temperature collection is completed by temperature collecting cell, the configuration information inputted by keystroke handling unit is according to the control logic execution result of setting, the control carrying out blower fan water valve unit exports, and carry out the display translation of user interface LCD display unit, microcontroller and PyxosFT communication unit carry out information interaction process, the setting of completion system functional parameter and relevant parameter;
Described temperature collecting cell is for gathering current environmental temperature signal;
Described keystroke handling unit, for the treatment of user key-press input signal, comprises switching on and shutting down, wind speed setting, pattern setting, target temperature setting;
Described blower fan water valve control unit, for receiving the output signal of microcontroller, controls the opening and closing of fan coil water valve and the gear of high, normal, basic three fast blower fans and start and stop;
Described PyxosFT communication unit, for the treatment of on-scene communication bus signals, carries out the two-way interactive of functional parameter with microprocessor;
Described LCD display unit for refreshing display by the functional parameter of temperature controller in real time on LCD display;
Described coupling isolated location one end is connected with bus, and the other end is connected with PyxosFT communication unit, for the power supply signal in bus and signal of communication being isolated;
Described PMU one end is connected with bus, and the other end is connected with whole temperature controller system, as system power supply.
Operation principle of the present utility model:
Power supply in PMU communication link is 24VAC/DC signal, delivers to DC-DC step-down chip, is transformed into 5VDC signal, as the system power supply of temperature controller after rectifier bridge rectification; After the energising of temperature controller system functional circuit, read by push-button unit and receive command process, the current operating state obtaining temperature controller is arranged, wind speed is arranged and temperature parameter configuration information, according to these parameters and the temperature sensor information that collects, after carrying out logical operation and judgement, perform corresponding peripheral hardware control action, control the refreshing of the start and stop of fan coil three fast blower fan or high, normal, basic gear switch, liquid crystal panel data; The microcontroller of temperature controller system carries out protocol data alternately by spi bus and PyxosFT communication unit, and the Frames such as the data of temperature controller, state, operational order are carried out alternating transmission by field bus communication interface; Coupling isolated location principle: not only transmit communications signals but also transmit 24V power supply signal in PyxosFT bus, therefore needs communication to be separated with power supply signal.Because PyxosFT data signal bus is high-frequency carrier signal, therefore on-the-spot for 2 cores multiple twin bus is isolated through common mode inductance, isolate signal of communication, deliver to PyxosFT communication unit.
Beneficial effect: central air conditioning fan coil unit temperature controller described in the utility model in temperature controller functional circuit design basis, by the field bus communication interface link of PyxosFT communication chip design circuit as air-conditioner temperature controller.Due to PyxosFT chip characteristics be embedded communication protocol processor and fieldbus networks transceiver, be supported on a pair 2 core twisted-pair feeders and transmit 24VAC/DC power supply, and signal of communication and power nonpolarity, transfer rate high (312.5Kbps), improves the real-time of control system greatly.The power supply of temperature controller system can be obtained through circuit coupling isolation and electric power management circuit by the transceiver end of pyxosFT chip.Further, the communications data frame of temperature controller, by carrying out protocol data alternately with pyxosFT chip, is transmitted by high-speed field bus by the MCU microcontroller of temperature controller system.Therefore, temperature controller of the present utility model, except the control with conventional temperature controller and field bus communication function, can also support that communication link is powered, and communication link is nonpolarity twisted pair line connection.
Accompanying drawing explanation
Fig. 1 is structured flowchart of the present utility model.
Detailed description of the invention
In order to deepen understanding of the present utility model, below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail, and this embodiment, only for explaining the utility model, does not form the restriction to the utility model protection domain.
Embodiment
As shown in Fig. 1 block diagram, central air conditioning fan coil unit temperature controller, is made up of microcontroller, blower fan water valve control unit, temperature collecting cell, keystroke handling unit, PyxosFT communication unit, coupling isolated location, PMU and LCD display unit,
Described microcontroller is connected with LCD display unit with microcontroller, blower fan water valve control unit, temperature collecting cell, keystroke handling unit, PyxosFT communication unit respectively, real time temperature collection is completed by temperature collecting cell, the configuration information inputted by keystroke handling unit is according to the control logic execution result of setting, the control carrying out blower fan water valve unit exports, and carry out the display translation of user interface LCD display unit, microcontroller and PyxosFT communication unit carry out information interaction process, the setting of completion system functional parameter and relevant parameter;
Described temperature collecting cell is for gathering current environmental temperature signal;
Described keystroke handling unit, for the treatment of user key-press input signal, comprises switching on and shutting down, wind speed setting, pattern setting, target temperature setting;
Described blower fan water valve control unit, for receiving the output signal of microcontroller, controls the opening and closing of fan coil water valve and the gear of high, normal, basic three fast blower fans and start and stop;
Described PyxosFT communication unit, for the treatment of on-scene communication bus signals, carries out the two-way interactive of functional parameter with microprocessor;
Described LCD display unit for refreshing display by the functional parameter of temperature controller in real time on LCD display;
Described coupling isolated location one end is connected with bus, and the other end is connected with PyxosFT communication unit, for the power supply signal in bus and signal of communication being isolated;
Described PMU one end is connected with bus, and the other end is connected, as system power supply with whole temperature controller system (in figure in dotted line frame).
The operation principle of the present embodiment:
Power supply in PMU communication link is 24VAC/DC signal, delivers to DC-DC step-down chip, is transformed into 5VDC signal, as the system power supply of temperature controller after rectifier bridge rectification; After the energising of temperature controller system functional circuit, read by push-button unit and receive command process, the current operating state obtaining temperature controller is arranged, wind speed is arranged and temperature parameter configuration information, according to these parameters and the temperature sensor information that collects, after carrying out logical operation and judgement, perform corresponding peripheral hardware control action, control the refreshing of the start and stop of fan coil three fast blower fan or high, normal, basic gear switch, liquid crystal panel data; The microcontroller of temperature controller system carries out protocol data alternately by spi bus and PyxosFT communication unit, and the Frames such as the data of temperature controller, state, operational order are carried out alternating transmission by field bus communication interface; Coupling isolated location principle: not only transmit communications signals but also transmit 24V power supply signal in PyxosFT bus, therefore needs communication to be separated with power supply signal.Because PyxosFT data signal bus is high-frequency carrier signal, therefore on-the-spot for 2 cores multiple twin bus is isolated through common mode inductance, isolate signal of communication, deliver to PyxosFT communication unit.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; 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.
Claims (1)
1. a central air conditioning fan coil unit temperature controller, is characterized in that, is made up of microcontroller, blower fan water valve control unit, temperature collecting cell, keystroke handling unit, PyxosFT communication unit, coupling isolated location, PMU and LCD display unit,
Described microcontroller is connected with LCD display unit with microcontroller, blower fan water valve control unit, temperature collecting cell, keystroke handling unit, PyxosFT communication unit respectively, real time temperature collection is completed by temperature collecting cell, the configuration information inputted by keystroke handling unit is according to the control logic execution result of setting, the control carrying out blower fan water valve unit exports, and carry out the display translation of user interface LCD display unit, microcontroller and PyxosFT communication unit carry out information interaction process, the setting of completion system functional parameter and relevant parameter;
Described temperature collecting cell is for gathering current environmental temperature signal;
Described keystroke handling unit is for the treatment of user key-press input signal;
Described blower fan water valve control unit, for receiving the output signal of microcontroller, controls the opening and closing of fan coil water valve and the gear of blower fan and start and stop;
Described PyxosFT communication unit, for the treatment of on-scene communication bus signals, carries out the two-way interactive of functional parameter with microprocessor;
Described LCD display unit for refreshing display by the functional parameter of temperature controller in real time on LCD display;
Described coupling isolated location one end is connected with bus, and the other end is connected with PyxosFT communication unit, for the power supply signal in bus and signal of communication being isolated;
Described PMU one end is connected with bus, and the other end is connected with whole temperature controller system, as system power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520431353.7U CN204757278U (en) | 2015-06-19 | 2015-06-19 | Central air conditioning fan coil temperature controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520431353.7U CN204757278U (en) | 2015-06-19 | 2015-06-19 | Central air conditioning fan coil temperature controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204757278U true CN204757278U (en) | 2015-11-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520431353.7U Active CN204757278U (en) | 2015-06-19 | 2015-06-19 | Central air conditioning fan coil temperature controller |
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| CN (1) | CN204757278U (en) |
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2015
- 2015-06-19 CN CN201520431353.7U patent/CN204757278U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: Building No. 11 Yuhuatai flora Ningxia Road District of Nanjing City, Jiangsu province 210000, 304, 305 room 306 Patentee after: Jiangsu Zhengtai taijiesai Intelligent Technology Co., Ltd Address before: 10, block B, building 210000, building B, new Metropolitan Plaza, 85 Chang Fu Street, Nanjing, Jiangsu Patentee before: NANJING TAIJIESAI INTELLIGENT TECHNOLOGY Co.,Ltd. |
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| CP03 | Change of name, title or address |