CN109869880B - Control method for indoor fan coil and wire controller - Google Patents
Control method for indoor fan coil and wire controller Download PDFInfo
- Publication number
- CN109869880B CN109869880B CN201910176088.5A CN201910176088A CN109869880B CN 109869880 B CN109869880 B CN 109869880B CN 201910176088 A CN201910176088 A CN 201910176088A CN 109869880 B CN109869880 B CN 109869880B
- Authority
- CN
- China
- Prior art keywords
- fan coil
- mode
- air
- main control
- control unit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- 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
-
- 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
- F24F13/22—Means for preventing condensation or evacuating condensate
-
- 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
Landscapes
- 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)
- Air Conditioning Control Device (AREA)
Abstract
The invention relates to a control method of an indoor fan coil and a wire controller, which comprises the following steps: simulating a communication line between the wire controller and the fan coil; selecting the working mode of the air conditioner through a wire controller; according to different working modes, the wire controller outputs different signals to a main control unit of the fan coil through the simulated communication line; according to different signals, the main control unit of the fan coil controls the running states of a fan motor and a water pump of the fan coil; the working mode comprises a combination of an air conditioning mode and an air outlet volume, the air conditioning mode comprises a refrigeration mode, a heating mode and an air supply mode, and the air outlet volume comprises a low air volume, a medium air volume and a high air volume. The intelligent control system is used for intelligently controlling the states of the fan motor and the water pump in the fan coil according to the mode of the air conditioner, is simple, effective and high in intelligence, timely discharges accumulated water in the water receiving tray, and improves user experience.
Description
Technical Field
The invention belongs to the technical field of air conditioner control, and particularly relates to a control method of an indoor fan coil and a wire controller.
Background
The fan coil is the end product of air conditioning system, have water pump and float switch from taking, the float switch is located fan coil's water collector, the opening of water pump is controlled through the signal of fan coil's main control unit collection float switch, because there is not communication between fan coil and the line accuse ware, therefore fan coil can not learn the mode of the air conditioner that the line accuse ware selected, make this kind of control mode, no matter the air conditioner is in the mode of refrigeration heating or air supply, the opening of water pump all is with float switch floats as the signal, if there is certain water yield in the water collector but does not let float switch float always, long-time later water collector will ponding like this, when supposing that at this moment the water pump damages or breaks down, long-time ponding can spill over in the water collector and lead to soaking the ceiling, reduce user's use and experience.
Disclosure of Invention
The invention provides a control method of an indoor fan coil and a line controller, which is used for solving the problem that a water collecting tray is easy to accumulate water when a float switch is used as a feedback signal for the operation of a water pump in the existing fan coil.
In order to solve the technical problems, the invention provides the following technical scheme for solving the problems:
a control method for an indoor fan coil and a wire controller is characterized by comprising the following steps: simulating a communication line between the line controller and the fan coil; selecting the working mode of the air conditioner through a wire controller; according to different working modes, the wire controller outputs different signals to a main control unit of the fan coil through the simulated communication line; according to different signals, the main control unit of the fan coil controls the running states of a fan motor and a water pump of the fan coil; the working mode comprises a combination of an air conditioning mode and an air outlet volume, the air conditioning mode comprises a refrigeration mode, a heating mode and an air supply mode, and the air outlet volume comprises a low air volume, a medium air volume and a high air volume.
Further, according to different working modes, the wire controller outputs voltage values corresponding to the working modes through the simulated communication line, wherein the voltage values are different.
Further, the voltage of each voltage value is between 0V and 5V.
Furthermore, the communication line is a voltage generation circuit, the input end of the voltage generation circuit is connected with the output end of the line controller, the output end of the voltage generation circuit is connected with the input end of the main control unit of the fan coil, and the voltage output by the voltage generation circuit corresponds to each working mode.
Further, the voltage generation circuit comprises a high-level conducted switching element, an optical coupler and a charge and discharge circuit, the high-level conducted switching element is connected in series between the output end of the line controller and the cathode of the optical coupler, the anode of the optical coupler is connected with an external direct-current power supply, the emitter of the optical coupler is connected with the pull-up resistor, the collector of the optical coupler is connected with the input end of the charge and discharge circuit, and the output end of the charge and discharge circuit is connected with the input end of the main control unit of the fan coil.
Further, the high-level conducting switch element is an NPN triode, a base of the NPN triode is connected to the output end of the line controller, an emitter of the NPN triode is grounded, and a collector of the NPN triode is connected to the cathode of the optocoupler through a current-limiting resistor.
Further, in order to improve indoor comfort, the control method of the indoor fan coil and the wire controller further comprises a temperature control shutdown step: when the indoor temperature reaches the set temperature, the wire controller outputs another signal to the main control unit of the fan coil through the simulated communication line, and the main control unit is used for controlling the fan motor to operate at low air volume.
Further, in order to avoid the situation that a water receiving tray overflows under the condition that a user is not aware of the fault of the water pump, the control method of the indoor fan coil and the line controller further comprises an alarm prompting step: when the water pump is in fault or damaged, the main control unit of the fan coil outputs a control signal to the alarm circuit, and the alarm circuit is controlled to send out an alarm prompt tone.
Further, according to different signals, the step that the main control unit of the fan coil controls the running states of the fan motor and the water pump of the fan coil comprises the following steps: when the online controller outputs a signal that the air-conditioning mode is the refrigeration mode, the main control unit of the fan coil controls the water pump to be started; when the online controller outputs a signal that the air-conditioning mode is the heating mode, the main control unit of the fan coil controls the water pump to be closed; when the online controller outputs a signal that the air-conditioning mode is the air supply mode, the main control unit of the fan coil controls the water pump to be started intermittently.
Further, when the online controller outputs a signal that the air-conditioning mode is the air supply mode, the main control unit of the fan coil controls the water pump to be started for a plurality of minutes at regular intervals.
Compared with the prior art, the invention has the advantages and beneficial effects that: the simulation establishes communication line between line accuse ware and the fan coil pipe, according to the mode of operation that line accuse ware selected, the line accuse ware is through the different signals to the main control unit of fan coil pipe of the different mode of operation of communication line output correspondence of simulation, then the running state of main control unit control fan coil pipe's fan motor and water pump, make the running state of different fan fans and water pumps of different mode of operation correspondence, realize the simulation communication between line accuse ware and the fan coil pipe, it is simple effective, and the running state of the mode intelligent control water pump according to the air conditioner, ponding in the water collector of in time discharging, avoid the water collector overflow, promote user experience.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments of the present invention or the prior art will be briefly described below, and it is obvious that the drawings described below are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a flow chart of a method of controlling an indoor fan coil and a line controller according to the present invention;
FIG. 2 is a system schematic for implementing the control method of the indoor fan coil and the line controller of the present invention;
FIG. 3 is a circuit diagram of communication lines in the control method of the indoor fan coil and the line controller according to the present invention;
fig. 4 is a circuit diagram of an alarm circuit in the control method of the indoor fan coil and the line controller according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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 some, but not all, embodiments of the present invention. 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.
In the prior art, the main control unit of the fan coil and the wire controller are not communicated, the control of the water pump in the fan coil is controlled by the state of the main control unit collecting the float switch, water is accumulated in the water receiving tray when condensate water exists and the water pump does not work, and water overflow of the water receiving tray can be caused as long as time passes. In order to avoid the above situation and realize the communication between the line controller and the fan coil, the present embodiment relates to a control method for an indoor fan coil and a line controller, as shown in fig. 1, including the following steps: simulating a communication line between the wire controller and the fan coil; selecting the working mode of the air conditioner through a wire controller; according to different working modes, the wire controller outputs different signals to a main control unit of the fan coil through the simulated communication line; according to different signals, the main control unit of the fan coil controls the running states of a fan motor and a water pump of the fan coil; the working mode comprises a combination of an air conditioning mode and an air outlet volume, the air conditioning mode comprises a refrigeration mode, a heating mode and an air supply mode, and the air outlet volume comprises a low air volume, a medium air volume and a high air volume.
Specifically, in this embodiment, a specific embodiment of the air conditioner system is a variable frequency floor heating air conditioner system. As shown in fig. 2, the line controller is in communication with the outdoor unit, controls the outdoor unit to start and stop, refrigerates and heats water, and controls the floor heating or the fan coil through the floor heating valve or the fan coil, so that water media can circulate to the floor heating coil or the fan coil through the outdoor unit. In order to realize the communication between the wire controller and the fan coil and the information sharing between the wire controller and the fan coil, the fan coil needs to know the working mode of the air conditioner currently selected by the wire controller, as shown in fig. 2, one output port VSP1 of the line controller (e.g., a speed regulation port for regulating the speed of a motor in a fan coil) outputs an analog voltage signal of, for example, 0-5V to the main control unit of the fan coil via a simulated communication line, specifically, because the wire controller is provided with the mode key and the air volume key, the wire controller can select the air conditioning mode to be a cooling mode, a heating mode or an air supply mode through the mode key, and select the air outlet volume to be low air volume, medium air volume or high air volume through the air volume key, the modes selected by the wire controllers are also modes which are needed to be known by the fan coil, and the three air-conditioning modes and the three air outlet volume are combined into the working mode of the air conditioner: refrigeration low wind, refrigeration apoplexy, refrigeration high wind, heat low wind, heat apoplexy, heat high wind, the air supply low wind, air supply apoplexy and air supply high wind, control the different voltage value that the control line accuse ware output corresponds nine kinds of operating modes through the communication line that simulates, this voltage value input is to fan coil's main control unit, because different voltage value corresponds different operating modes, like this, the operating mode of current air conditioner just can be known through gathering this voltage value to main control unit, thereby control the operation of fan motor and water pump more intelligently.
As shown in fig. 3, which shows an embodiment of a communication line, the VSP1 is connected to a pin of a single chip microcomputer of a line controller, the VSP1-O is connected to a pin of a single chip microcomputer of a main control unit of a fan coil, the communication line of this embodiment is a voltage generating circuit, which includes a switching element that is turned on at a high level, a photo coupler PC10 and a charging and discharging circuit, the switching element that is turned on at a high level in this embodiment is an NPN triode, the charging and discharging circuit is formed by connecting a pull-down resistor R1 and an electrolytic capacitor E79 in parallel, a base of the NPN triode Q is connected to the pin VSP1, an emitter is grounded, a collector is connected to a cathode K of the photo coupler PC10 through a current-limiting resistor R2, an anode a is connected to an external direct current power source VCC05, an emitter E of the photo coupler PC10 is connected to a pull-up resistor R3 and a collector C is connected to one end of the pull-down resistor, an external direct current power source VCC05 (for example, + V) is connected to the anode a of the optocoupler PC10 through a first filter circuit, and an external direct current power source VCC15 (for example, + 15V) connected to the pull-up resistor R3 is connected to one end of the pull-up resistor R2 through a second filter circuit, where the first filter circuit is a capacitor C1 in this embodiment, one end of a capacitor C1 is connected between the external direct current power source VCC05 and the anode a of the optocoupler PC10, the other end of the capacitor C1 is grounded, the second filter circuit is a capacitor C2 in this embodiment, one end of a capacitor C2 is connected between the external direct current power source VCC15 and one end of the pull-up resistor R3, and the other end of the capacitor C2 is grounded. The operation principle of the voltage generation circuit of the present embodiment is described as follows: when the VSP1 is at a low level, the NPN triode Q1 is not turned on, the photo coupler PC10 is also not turned on, when the VSP1 is at a high level, the NPN triode Q1 is turned on, the photo coupler PC01 is also turned on, at this time, the external dc power VCC15 charges the electrolytic capacitor E79, and outputs a voltage value on the VSP1-O pin, and when the photo coupler PC01 is not turned on, the electrolytic capacitor E79 discharges through the pull-down resistor R1, and outputs another voltage value on the VSP1-O pin, the change of the output voltage value of the VSP1-O pin can be realized by controlling the time when the VSP1 outputs the high and low levels through the line controller, in this embodiment, the range of the voltage value output by the pin VSP1-O is controlled to be 0 to 5V, and the voltages output by the VSP1-O pin controller are different corresponding to nine operation modes selected by the line controller. The fan coil main control unit collects voltage signals of a pin VSP1-O and controls the output of a fan motor and a water pump corresponding to each working mode through an analog-digital converter integrated on a main control unit singlechip.
In fact, the line controller is provided with a temperature sensor, so that the indoor actual temperature can be collected, when the actual temperature is equal to the set temperature, refrigeration or heating is not needed, and at the moment, the fan motor is controlled to always keep low air volume operation to maintain the current temperature (the condition is called temperature control shutdown), so that the user experience is promoted, and the high air volume or the medium air volume operation is still kept after the temperature set by the user is reached, so that the supercooling or overheating can be realized for the user. In this embodiment, when the actual temperature is equal to the set temperature, the line controller outputs the voltage corresponding to the temperature-controlled shutdown through the simulated communication line, where the voltage value is different from the voltage values corresponding to the nine operating modes, and controls the fan motor to output the low wind when the main control unit of the fan coil detects the voltage requiring the temperature-controlled shutdown.
In actual operation, the air conditioner generates condensed water only in a cooling state, so that the water pump is always turned on when the air conditioner is used for cooling, the condensed water is not generated in a heating state, the water pump is not required to be turned on the basis of reducing user noise, and little condensed water exists in an air supply state, so that the main control unit of the fan coil controls the water pump to be turned on intermittently, for example, the water pump is turned on for a plurality of minutes (for example, three minutes) at regular intervals (for example, one hour).
According to the embodiment, the fan coil can conveniently know the working mode selected by the wire controller through the communication between the simulation wire controller and the fan coil, so that the intelligent control of the water pump is realized, and the potential water accumulation hazard is avoided; and VSP1 originally is as the speed governing port of fan coil's motor, in this embodiment, has utilized this existing wiring port to realize that wire controller and fan coil have had the wiring to establish both communication relations between them, does not increase hardware cost.
When the water pump is damaged or broken, the condensed water cannot be discharged, in order to improve the operation reliability of the fan coil, an alarm circuit is added on an output pin VOUT of a main control unit of the fan coil, specifically, as shown in FIG. 4, VOUT is connected with a base electrode of an NPN triode Q2, an emitting electrode is grounded, a collecting electrode is connected between a resistor R4 and a negative electrode of an alarm device such as a buzzer BZ, an output end of an external direct current power supply VCC is connected between a resistor R4 and a positive electrode of the alarm device, an output end of the external direct current power supply VCC is connected with a grounded electrolytic capacitor E5 for filtering the NPN power supply VCC (such as + 5V), when the water pump is broken or broken, the pin VOUT of the main control unit outputs high level, at the moment, the triode Q2 is conducted, the external direct current power supply VCC supplies power to the buzzer BZ makes a sound to prompt a user that the water pump is, is convenient for maintenance in time.
According to the control method of the indoor fan coil and the wire controller, the communication line between the wire controller and the fan coil is simulated, according to the working mode selected by the wire controller, the wire controller outputs different voltages corresponding to different working modes to the main control unit of the fan coil through the simulated communication line, then the main control unit controls the running states of the fan motor and the water pump of the fan coil, so that the different working modes correspond to the running states of different fan fans and water pumps, the simulated communication between the wire controller and the fan coil is realized, and the method is simple and effective; the running state of the water pump is intelligently controlled according to the working mode of the air conditioner, accumulated water in the water receiving tray is discharged in time, water overflow of the water receiving tray is avoided, and user experience is improved; the increased temperature control is stopped and the alarm circuit is adopted, so that the user experience is improved.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (8)
1. A control method for an indoor fan coil and a wire controller is characterized by comprising the following steps:
simulating a communication line between the wire controller and the fan coil;
selecting the working mode of the air conditioner through a wire controller;
according to different working modes, the wire controller outputs different voltage values corresponding to the working modes to a main control unit of the fan coil through the simulated communication line; and
according to different voltage values, the main control unit of the fan coil controls the running states of a fan motor and a water pump of the fan coil;
the working mode comprises a combination of an air conditioning mode and an air outlet volume, the air conditioning mode comprises a refrigeration mode, a heating mode and an air supply mode, and the air outlet volume comprises a low air volume, a medium air volume and a high air volume;
the communication circuit is a voltage generating circuit, the input end of the voltage generating circuit is connected with the output end of the line controller, the output end of the voltage generating circuit is connected with the input end of the main control unit of the fan coil, and the voltage output by the voltage generating circuit corresponds to each working mode.
2. The method of claim 1 wherein the voltage for each voltage level is between 0V and 5V.
3. The control method for the indoor fan coil and the wire controller according to claim 1, wherein the voltage generation circuit comprises a high-level conducting switching element, an optical coupler and a charge and discharge circuit, the high-level conducting switching element is connected in series between the output end of the wire controller and the cathode of the optical coupler, the anode of the optical coupler is connected with an external direct current power supply, the emitter of the optical coupler is connected with the pull-up resistor, the collector of the optical coupler is connected with the input end of the charge and discharge circuit, and the output end of the charge and discharge circuit is connected with the input end of the main control unit of the fan coil.
4. The method of claim 3, wherein the high-level conducting switching element is an NPN transistor, a base of the NPN transistor is connected to the output of the wire controller, an emitter of the NPN transistor is grounded, and a collector of the NPN transistor is connected to the cathode of the optocoupler through a current-limiting resistor.
5. The method of controlling an indoor fan coil and line controller of claim 1, further comprising a temperature-controlled shutdown step: when the indoor temperature reaches the set temperature, the wire controller outputs another signal to the main control unit of the fan coil through the simulated communication line, and the main control unit is used for controlling the fan motor to operate at low air volume.
6. The method of controlling an indoor fan coil and a line controller according to claim 1, further comprising an alarm prompting step of: when the water pump is in fault or damaged, the main control unit of the fan coil outputs a control signal to the alarm circuit, and the alarm circuit is controlled to send out an alarm prompt tone.
7. The method of claim 1, wherein the step of the main control unit of the fan coil controlling the operating status of the fan motor and the water pump of the fan coil based on the different signals comprises: when the online controller outputs a signal that the air-conditioning mode is the refrigeration mode, the main control unit of the fan coil controls the water pump to be started; when the online controller outputs a signal that the air-conditioning mode is the heating mode, the main control unit of the fan coil controls the water pump to be closed; when the online controller outputs a signal that the air-conditioning mode is the air supply mode, the main control unit of the fan coil controls the water pump to be started intermittently.
8. The control method of an indoor fan coil and wire controller according to claim 7, wherein when the wire controller outputs a signal that the air conditioning mode is the air supply mode, the main control unit of the fan coil controls the water pump to be turned on for several minutes at regular intervals.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910176088.5A CN109869880B (en) | 2019-03-08 | 2019-03-08 | Control method for indoor fan coil and wire controller |
| PCT/CN2019/124895 WO2020181856A1 (en) | 2019-03-08 | 2019-12-12 | Air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910176088.5A CN109869880B (en) | 2019-03-08 | 2019-03-08 | Control method for indoor fan coil and wire controller |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109869880A CN109869880A (en) | 2019-06-11 |
| CN109869880B true CN109869880B (en) | 2021-05-25 |
Family
ID=66920086
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910176088.5A Active CN109869880B (en) | 2019-03-08 | 2019-03-08 | Control method for indoor fan coil and wire controller |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN109869880B (en) |
| WO (1) | WO2020181856A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109869880B (en) * | 2019-03-08 | 2021-05-25 | 青岛海信日立空调系统有限公司 | Control method for indoor fan coil and wire controller |
| CN110793135B (en) * | 2019-11-01 | 2022-03-18 | 青岛海信日立空调系统有限公司 | Floor heating and air conditioning integrated machine |
| CN111023477B (en) * | 2019-12-20 | 2021-06-08 | 青岛海信日立空调系统有限公司 | Drive-by-wire ware |
| CN112682917A (en) * | 2020-12-30 | 2021-04-20 | 卢锦溪 | Central air conditioning temperature control system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102109209A (en) * | 2009-12-23 | 2011-06-29 | 中国科学院沈阳自动化研究所 | Central air conditioning fan coil controller |
| CN104713207A (en) * | 2013-12-17 | 2015-06-17 | 约克广州空调冷冻设备有限公司 | Brushless direct current motor fan-coil unit and rotating speed control system and method thereof |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5121613A (en) * | 1991-01-08 | 1992-06-16 | Rheem Manufacturing Company | Compact modular refrigerant coil apparatus and associated manufacturing methods |
| KR100474324B1 (en) * | 2001-12-14 | 2005-03-08 | 엘지전자 주식회사 | Condensate remove method for air conditioner |
| CN201159507Y (en) * | 2008-01-03 | 2008-12-03 | 宁波惠康实业有限公司 | A draught fan coiler unit |
| CN104048391B (en) * | 2014-05-13 | 2017-01-25 | 松下制冷（大连）有限公司 | Linkage integration control mechanism of air cooling heating pump air conditioner indoor unit and water coiler |
| CN208332469U (en) * | 2018-03-26 | 2019-01-04 | 特灵空调系统(中国)有限公司 | A kind of fan coil units and air-conditioning |
| CN108626843B (en) * | 2018-04-28 | 2020-10-23 | 四川虹美智能科技有限公司 | Air conditioner drainage pump control system and method |
| CN208419156U (en) * | 2018-06-12 | 2019-01-22 | 河南惠银环保工程有限公司 | A kind of air-conditioning fan coil condensed water treating device |
| CN109869880B (en) * | 2019-03-08 | 2021-05-25 | 青岛海信日立空调系统有限公司 | Control method for indoor fan coil and wire controller |
-
2019
- 2019-03-08 CN CN201910176088.5A patent/CN109869880B/en active Active
- 2019-12-12 WO PCT/CN2019/124895 patent/WO2020181856A1/en active Application Filing
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102109209A (en) * | 2009-12-23 | 2011-06-29 | 中国科学院沈阳自动化研究所 | Central air conditioning fan coil controller |
| CN104713207A (en) * | 2013-12-17 | 2015-06-17 | 约克广州空调冷冻设备有限公司 | Brushless direct current motor fan-coil unit and rotating speed control system and method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109869880A (en) | 2019-06-11 |
| WO2020181856A1 (en) | 2020-09-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109869880B (en) | Control method for indoor fan coil and wire controller | |
| US7573217B2 (en) | Methods and systems for automatic rotation direction determination of electronically commutated motor | |
| CN103388879A (en) | Control method of air conditioner | |
| CN102678504B (en) | Pump system and method for operating the same | |
| CN103423837A (en) | Free static pressure air pipe type air conditioner | |
| CN102506529B (en) | Control method of single-stage refrigerant system and optimizer | |
| US7847510B2 (en) | Controlling switching of thyristors to reduce power loss in variable speed motor | |
| CN110030709A (en) | Drive control circuit, air conditioner, control method and computer readable storage medium | |
| CN102455044B (en) | Electronic equipment | |
| US8810163B2 (en) | System and method for variable speed motor control with a single control signal | |
| CN100439810C (en) | Unitary air conditioner | |
| CN105864010A (en) | Multi-speed motor driven air conditioner compressor and control method thereof | |
| CN113784592A (en) | Combined heat dissipation system, electrical equipment, air conditioner and heat dissipation method | |
| CN110021937A (en) | The control method and household electrical appliance of household electrical appliance | |
| CN205401077U (en) | Many fast motor drive's air condition compressor | |
| CN111679595A (en) | Power control circuit, control circuit group and household appliance | |
| CN101110564A (en) | Air conditioner with plurality of indoor units and its control method | |
| CN112253519B (en) | Fan control circuit, method, controller and electric equipment | |
| CN112240283A (en) | Compressor control device and method | |
| CN217306605U (en) | Temperature control system of energy storage battery chamber in low-temperature environment | |
| CN109405187A (en) | A kind of control method and frequency-variable controller | |
| CN218783740U (en) | Fan forward and backward rotation control circuit applied to bathroom heater | |
| CN102023618A (en) | Method and system for controlling dynamic balance of grouped homomorphic equipment | |
| CN106658796B (en) | A kind of voltage regulator circuit and voltage adjusting method | |
| CN212362368U (en) | Precision air conditioner |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |