CN114110959A - Novel fan coil control system - Google Patents
Novel fan coil control system Download PDFInfo
- Publication number
- CN114110959A CN114110959A CN202111476567.2A CN202111476567A CN114110959A CN 114110959 A CN114110959 A CN 114110959A CN 202111476567 A CN202111476567 A CN 202111476567A CN 114110959 A CN114110959 A CN 114110959A
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- fan coil
- direct current
- current motor
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- 230000033228 biological regulation Effects 0.000 claims abstract description 22
- 230000001276 controlling effect Effects 0.000 claims abstract description 5
- 230000001105 regulatory effect Effects 0.000 claims abstract description 5
- 238000004891 communication Methods 0.000 claims description 15
- 230000000087 stabilizing effect Effects 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 4
- 238000009434 installation Methods 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 12
- 230000000694 effects Effects 0.000 description 3
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/56—Remote control
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
- F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
- F24F11/77—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity by controlling the speed of ventilators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/88—Electrical aspects, e.g. circuits
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/24—Means for preventing or suppressing noise
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/24—Means for preventing or suppressing noise
- F24F2013/247—Active noise-suppression
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Human Computer Interaction (AREA)
- Control Of Positive-Displacement Air Blowers (AREA)
Abstract
The invention discloses a novel fan coil control system, which belongs to the technical field of air conditioner control and comprises the following components: a direct current motor; the speed regulation remote control device is used for remotely controlling and regulating the rotating speed of the direct current motor; the control circuit drives the direct current motor to realize rotation speed regulation by inputting low voltage of 0-10V, and is matched with the speed regulation remote control device to be provided with a signal receiving device for receiving signals, the control circuit comprises a main control module, the main control module controls the output state by the speed regulation remote control device, and the direct current motor is controlled in a fixed gear mode or controlled in a speed regulation mode by a selectable three-speed control module. Besides the traditional three-speed gear control, the setting of the air quantity is realized by controlling the rotating speed of the direct current motor through the input of 0-10V low-voltage analog quantity, the rotating speed is adjustable, the device flexibly adapts to the field installation conditions of projects, and the minimum rotating speed required by the air quantity can be matched.
Description
Technical Field
The invention belongs to the technical field of air conditioner control, and particularly relates to a novel fan coil control system.
Background
A fan-coil unit is called a fan coil for short. It is one of the end devices of air conditioning system composed of small fan, motor and coil pipe (air heat exchanger). When chilled water or hot water flows through the coil pipes, the heat exchange is carried out with air outside the pipe, so that the air is cooled, dehumidified or heated to adjust indoor air parameters, and the coil pipes are commonly used for cooling and heating end devices.
The product of traditional high-medium-low (constant speed) fan configuration only can realize the adjustment of the constant gear rotational speed to the motor, and the motor rotational speed can not be adjusted pertinently according to the change of the project site installation condition, thereby causing high energy consumption and large noise, or the fan coil pipe may operate under the nonstandard working condition to cause the serious shortening of the motor life-span.
The fan coil control system provided by CN107906704A belongs to the technical field of electronic information and comprises an air conditioner temperature controller, a fan coil and a fan coil controller arranged on the fan coil, wherein the fan coil controller is electrically connected with the air conditioner temperature controller, the fan coil is electrically connected with a fan coil driving circuit, and the fan coil driving circuit is electrically connected with the fan coil controller. This fan coil control system has improved current fan coil and has been controlled by setting up the controller direct control in indoor, then at the in-process of installation fan coil, and every control function that corresponds the controller all needs to be connected a wire between controller and fan coil to cause the more complicated problem of installation process of current fan coil. But it is controlled by electrical connections and the way the circuit controls the specific implementation is not shown.
Disclosure of Invention
The invention aims to provide a novel fan coil control system to solve the problem that the existing fan coil control system is put forward in the background technology in the using process.
In order to achieve the purpose, the invention provides the following technical scheme: a novel fan coil control system comprising:
a direct current motor;
the speed regulation remote control device is used for remotely controlling and regulating the rotating speed of the direct current motor;
the control circuit drives the direct current motor to realize rotation speed regulation by inputting low voltage of 0-10V, and is matched with the speed regulation remote control device to be provided with a signal receiving device for receiving signals, the control circuit comprises a main control module, the main control module controls the output state by the speed regulation remote control device, and the direct current motor is controlled in a fixed gear mode or controlled in a speed regulation mode by a selectable three-speed control module.
Preferably, the main control module is electrically connected with the pressure module, the temperature module, the communication module, the voltage input module and the voltage stabilizing module.
Preferably, the main control module outputs a control signal to the connector output module, and the connector output module outputs the control signal to the dc motor for control.
Preferably, the control signal output by the main control module is further connected to a feedback line through the connector output module to perform signal feedback to the main control module.
Preferably, the main control module comprises a single chip microcomputer main control circuit, and the single chip microcomputer selects a CRFLSN chip.
Preferably, the voltage stabilizing module is connected to a live line and a zero line to output a stable voltage, and the voltage stabilizing module performs power correction through the NCP chip and performs power control of the switching circuit through the TNYG.
Preferably, the communication module includes an RS circuit for performing external communication.
Preferably, the voltage input module is used for inputting a voltage analog quantity of-V to control.
Preferably, the main control module is selectively connected to the pressure sensor through the pressure module.
Preferably, the main control module is selectively connected to the temperature sensor through the temperature module.
Compared with the prior art, the invention has the beneficial effects that:
besides the traditional three-speed fixed-gear control, the rotating speed of the direct current motor is controlled through 0-10V low-voltage analog input to realize the setting of the air volume, the rotating speed is adjustable, the direct current motor can flexibly adapt to the field installation conditions of a project, the minimum rotating speed required by the air volume can be matched, the noise is greatly reduced, a remote control device is also arranged to adjust the rotating speed under the condition that wiring is not adjusted on the field of the project, and the effects of better comfort and energy conservation compared with the traditional three-speed fan coil are achieved.
The corresponding adjustable range of the external static pressure is 0-50Pa, which basically meets most household and commercial projects and can also expand the range according to the needs.
The temperature interface and the pressure interface can be optionally reserved to adapt to the control of complex working conditions.
Meanwhile, compared with the traditional direct control of a 220V power supply, the low-voltage input control has higher safety and is suitable for ground pavement.
Drawings
FIG. 1 is a control schematic of the present invention;
FIG. 2 is a schematic diagram of a control circuit according to the present invention;
FIG. 3 is a circuit diagram of a master control module according to the present invention;
FIG. 4 is a circuit diagram of a portion of the voltage regulator module of the present invention;
FIG. 5 is a circuit diagram of another portion of the regulator module of the present invention;
FIG. 6 is a circuit diagram of an optocoupler of the invention;
FIG. 7 is a circuit diagram of a communication module of the present invention;
FIG. 8 is a circuit diagram of a three speed control module of the present invention;
FIG. 9 is a circuit diagram of a voltage input module according to the present invention;
FIG. 10 is a circuit diagram of a temperature module of the present invention;
FIG. 11 is a circuit diagram of a pressure module of the present invention;
fig. 12 is a circuit diagram of a connector module of the present invention;
FIG. 13 is a circuit diagram of the bypass switch of the present invention.
In the figure: 1. a speed-regulating remote control device; 2. a control circuit; 21. a main control module; 22. a pressure module; 23. a temperature module; 24. a communication module; 25. a voltage input module; 26. a voltage stabilization module; 27. a connector output module; 28. a three-speed control module; 3. a direct current motor.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, 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 invention.
Referring to fig. 1-13, the present invention provides a technical solution: a novel fan coil control system comprising:
a direct current motor 3;
the speed regulation remote control device 1 is used for remotely controlling and regulating the rotating speed of the direct current motor 3.
The control circuit 2 drives the direct current motor 3 to realize rotation speed regulation through the 0-10V low voltage input control circuit 2, and is provided with a signal receiving device for receiving signals in cooperation with the speed regulation remote control device 1, the control circuit 2 comprises a main control module 21, the main control module 21 performs output state control through the speed regulation remote control device 1, and optionally, the three-speed control module 28 is used for realizing fixed-gear control of the direct current motor 3 or speed regulation control of the direct current motor 3.
In the embodiment, besides the traditional three-speed fixed gear control, the rotating speed of the direct current motor is controlled through 0-10V low-voltage analog input to realize the setting of the air volume, the rotating speed is adjustable, the direct current motor flexibly adapts to the field installation conditions of a project, the minimum rotating speed required by the air volume can be matched, the noise is greatly reduced, the rotating speed can be adjusted by the remote control device under the condition that wiring is not adjusted on the field of the project, and the comfort and the energy-saving effect better than those of the traditional three-speed fan coil are achieved.
The set range of the rotation speed regulation realized by the scheme is 200-2000 RPM.
When the control voltage reaches 2V, the fan is started, and the rotating speed is 200 RPM; when the control voltage is changed from 2V to 4.5V, 4.5V to 7V and 7V to 10V, the corresponding linear change of the rotating speed is realized.
The three-speed control module 28 here realizes that the matching relationship between the traditional three-speed alternating currents of 0-10V is as follows: 4.5V corresponds to low gear; 7V corresponds to a middle gear; 10V corresponds to high grade.
FG is shown as a feedback signal.
HV is shown as a 310V dc input.
Specifically, the main control module 21 is electrically connected to a pressure module 22, a temperature module 23, a communication module 24, a voltage input module 25, and a voltage stabilizing module 26.
In this embodiment, the main control module 21 is selectively connected to the pressure module 22 and the temperature module 23, and can realize communication control through the communication module 24, a voltage of 0-10V is input through the voltage input module 25, the voltage stabilization module 26 plays a role in outputting a stabilized voltage, and the single chip microcomputer is further connected to the switching circuit, so that damage to a device due to an excessive local voltage when the circuit is disconnected is prevented.
Specifically, the main control module 21 outputs a control signal to the connector output module 27, and the connector output module 27 outputs the control signal to the dc motor 3 for control.
In this embodiment, the optical coupler is connected to the connector output module 27 to implement isolation of the input signal and the output signal.
Specifically, the control signal output by the main control module 21 is also fed back to the main control module 21 through the connector output module and the feedback line.
In this embodiment, a feedback line is further provided to feed back the output signal to the main control module 21.
Specifically, the main control module 21 includes a single chip microcomputer main control circuit, and the single chip microcomputer selects a CR5F212L4SN508 chip.
In this embodiment, the single chip is connected with a reset circuit, a clock circuit and the like so as to normally operate.
Specifically, the voltage regulation module 26 is connected to the live line and the zero line to output a regulated voltage, and the voltage regulation module 26 performs power correction through an NCP1653 chip and performs switching power supply control through the TNY 276G.
In the embodiment, the NCP1653 chip performs power correction on the input alternating-current voltage, and the TNY276G has accurate hysteresis thermal shutdown protection and an automatic recovery function and does not need manual resetting.
Specifically, the communication module 24 includes an RS485 circuit for performing external communication.
In this embodiment, can choose to join in marriage MODBUSRS485 communication port, cooperation building intelligent control.
Specifically, the voltage input module 25 is used for inputting a voltage analog quantity of 0-10V for control.
In the embodiment, the low-voltage input control has higher safety than the direct control of the traditional 220V power supply, and is suitable for ground pavement.
Specifically, the main control module 21 is selectively connected to the pressure sensor through the pressure module 22.
In this embodiment, the pressure module 22 is selectively connected to the pressure sensor, and obtains a corresponding pressure value through the single chip, so as to further adjust the rotating speed according to the obtained external static pressure.
Specifically, the main control module 21 is selectively connected to the temperature sensor through the temperature module 23.
In this embodiment, the temperature module 23 is selectively connected to the temperature sensor, the single chip microcomputer is used to obtain a corresponding temperature value, and the rotation speed adjustment is further realized according to the obtained temperature.
The working principle and the using process of the invention are as follows: the main control module 21 is optionally connected to the pressure module 22 and the temperature module 23, and can realize intelligent building control through the communication module 24, the voltage of 0-10V is input to the main control module 21 through the voltage input module 25, the voltage stabilizing module 26 plays a role of outputting stable voltage, the main control module 21 performs output state control through the speed-regulating remote control device 1, the DC motor 3 is controlled in a fixed gear mode through the optional three-speed control module 28, or the speed regulation is performed to control the DC motor 3, the rotating speed regulation setting range is 200 and 2000RPM, when the control voltage reaches 2V, the fan is started, the rotating speed is 200RPM at the moment, and the control voltage is changed from 2V to 4.5V, 4.5V to 7V and 7V to 10V, the corresponding linear change that is of rotational speed, singlechip still connect the switching circuit, prevent that local voltage too big leads to falling the device and damage when the circuit breaks, the effect of steady voltage is exported to steady voltage module 26.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The utility model provides a novel fan coil control system which characterized in that: the method comprises the following steps:
a direct current motor (3);
the speed regulation remote control device (1) is used for remotely controlling and regulating the rotating speed of the direct current motor (3);
control circuit (2), through 0-10V low voltage input control circuit (2) drive direct current motor (3) realize the rotational speed regulation, and the cooperation speed governing remote control unit (1) is provided with signal receiver and carries out signal reception, control circuit (2) include host system (21), host system (21) pass through speed governing remote control unit (1) carries out output state control, and optional three-speed control module (28) of passing through realize the control of deciding the grade direct current motor (3), or carry out the speed governing control direct current motor (3).
2. A novel fan coil control system as claimed in claim 1, wherein: the main control module (21) is electrically connected with a pressure module (22), a temperature module (23), a communication module (24), a voltage input module (25) and a voltage stabilizing module (26).
3. A novel fan coil control system as claimed in claim 2, wherein: the main control module (21) outputs a control signal to the connector output module (27), and the connector output module (27) outputs the control signal to the direct current motor (3) for control.
4. A novel fan coil control system as claimed in claim 2, wherein: the control signal output by the main control module (21) is also connected with a feedback line through the connector output module (27) to perform signal feedback to the main control module (21).
5. The novel fan coil control system according to claim 1, wherein the main control module (21) comprises a single chip microcomputer main control circuit, and the single chip microcomputer is a CR5F212L4SN508 chip.
6. A novel fan coil control system as claimed in claim 2, wherein: the voltage stabilizing module (26) is connected to a live wire and a zero wire to output a stable voltage, the power of the voltage stabilizing module (26) is corrected through an NCP1653 chip, and the power of a switch circuit is controlled through TNY 276G.
7. A novel fan coil control system as claimed in claim 2, wherein: the communication module (24) comprises an RS485 circuit and is used for external communication.
8. A novel fan coil control system as claimed in claim 2, wherein: the voltage input module (25) is used for inputting a voltage analog quantity of 0-10V for control.
9. A novel fan coil control system as claimed in claim 2, wherein: the main control module (21) is selectively connected with the pressure sensor through the pressure module (22).
10. A novel fan coil control system as claimed in claim 2, wherein: the main control module (21) is selectively connected with the temperature sensor through the temperature module (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111476567.2A CN114110959A (en) | 2021-12-06 | 2021-12-06 | Novel fan coil control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111476567.2A CN114110959A (en) | 2021-12-06 | 2021-12-06 | Novel fan coil control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114110959A true CN114110959A (en) | 2022-03-01 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111476567.2A Pending CN114110959A (en) | 2021-12-06 | 2021-12-06 | Novel fan coil control system |
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| CN (1) | CN114110959A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201039061Y (en) * | 2007-04-29 | 2008-03-19 | 上海百富勤空调制造有限公司 | Wind blower tray tube for three speed adjusting DC brushless motor |
| CN203574577U (en) * | 2013-10-30 | 2014-04-30 | 约克广州空调冷冻设备有限公司 | Brushless direct current motor control system and brushless direct current fan-coil unit |
| CN103822336A (en) * | 2014-03-04 | 2014-05-28 | 南京格林斯曼空调科技发展有限公司 | Temperature controller capable of realizing stepless speed adjustment |
| CN103856119A (en) * | 2014-03-27 | 2014-06-11 | 常州祥明电机有限公司 | Three-speed switch converter used in brushless direct-current motor |
| CN206724421U (en) * | 2017-05-25 | 2017-12-08 | 广东海悟科技有限公司 | The controller of fan speed regulation in controllable air-conditioning system |
| CN107906704A (en) * | 2017-11-17 | 2018-04-13 | 盛立兴 | Fan coil control system |
| CN207230851U (en) * | 2017-09-28 | 2018-04-13 | 欣盛尚驰科技股份有限公司 | A kind of stepless time adjustment temperature controller for fan coil |
-
2021
- 2021-12-06 CN CN202111476567.2A patent/CN114110959A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201039061Y (en) * | 2007-04-29 | 2008-03-19 | 上海百富勤空调制造有限公司 | Wind blower tray tube for three speed adjusting DC brushless motor |
| CN203574577U (en) * | 2013-10-30 | 2014-04-30 | 约克广州空调冷冻设备有限公司 | Brushless direct current motor control system and brushless direct current fan-coil unit |
| CN103822336A (en) * | 2014-03-04 | 2014-05-28 | 南京格林斯曼空调科技发展有限公司 | Temperature controller capable of realizing stepless speed adjustment |
| CN103856119A (en) * | 2014-03-27 | 2014-06-11 | 常州祥明电机有限公司 | Three-speed switch converter used in brushless direct-current motor |
| CN206724421U (en) * | 2017-05-25 | 2017-12-08 | 广东海悟科技有限公司 | The controller of fan speed regulation in controllable air-conditioning system |
| CN207230851U (en) * | 2017-09-28 | 2018-04-13 | 欣盛尚驰科技股份有限公司 | A kind of stepless time adjustment temperature controller for fan coil |
| CN107906704A (en) * | 2017-11-17 | 2018-04-13 | 盛立兴 | Fan coil control system |
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Application publication date: 20220301 |