CN112484244A - Control method and device for fan of air conditioner indoor unit - Google Patents
Control method and device for fan of air conditioner indoor unit Download PDFInfo
- Publication number
- CN112484244A CN112484244A CN202011293031.2A CN202011293031A CN112484244A CN 112484244 A CN112484244 A CN 112484244A CN 202011293031 A CN202011293031 A CN 202011293031A CN 112484244 A CN112484244 A CN 112484244A
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- fan
- air conditioner
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- control module
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- 238000000034 method Methods 0.000 title claims abstract description 27
- 238000001514 detection method Methods 0.000 claims abstract description 19
- 230000033228 biological regulation Effects 0.000 claims abstract description 4
- 230000001276 controlling effect Effects 0.000 claims description 12
- 238000010408 sweeping Methods 0.000 claims description 6
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 230000003044 adaptive effect Effects 0.000 claims description 2
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000030279 gene silencing Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001629 suppression Effects 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
- F24F11/54—Control or safety arrangements characterised by user interfaces or communication using one central controller connected to several sub-controllers
-
- 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
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
-
- 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
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/65—Electronic processing for selecting an operating mode
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/30—Velocity
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- 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)
- Mechanical Engineering (AREA)
- Signal Processing (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Human Computer Interaction (AREA)
- Fluid Mechanics (AREA)
- Air Conditioning Control Device (AREA)
- Control Of Positive-Displacement Air Blowers (AREA)
Abstract
The invention discloses a control method and a device of a fan of an air conditioner indoor unit, which relate to the technical field of air conditioner indoor units and comprise the following steps: the fan detection module is connected with the fan control module, detects the current running information of the fan and outputs the running information of the fan to the fan control module and the fan driving module; the fan control module is connected with the fan driving module and used for providing a voltage signal for the fan driving module according to the fan control module and controlling the running rotating speed of the fan through analog quantity voltage regulation; the fan driving module is connected with the fan detection module and used for detecting the running rotating speed of the fan and feeding back a frequency signal fed back by the fan driving module to the fan control module; the beneficial effects are as follows: the running speed of the fan is reduced according to the control voltage setting, the wind resistance of the swinging blade of the air conditioner is reduced, so that the noise of the air conditioner is weakened, and the method is scientific, safe and reliable.
Description
Technical Field
The invention relates to the technical field of air conditioner indoor units, in particular to a method and a device for controlling a fan of an air conditioner indoor unit.
Background
With the development of science and technology and the progress of society, the popularity of air conditioners in the domestic market is higher and higher, and some well-known air conditioner brands are also well known, such as: hel, geli, mei, etc. At present, the types of air conditioners are more and more like a wall-mounted air conditioner, a ceiling-mounted air conditioner, a vertical cabinet air conditioner and the like, and corresponding internal units of the air conditioners also comprise the wall-mounted air conditioner, the ceiling-mounted air conditioner, the vertical cabinet air conditioner and the like. The air conditioner is also developed towards green, environmental protection and high efficiency, but the silencing technology of the air conditioner is always a core concern of each manufacturer and is also an important consideration standard.
The existing wall-mounted air conditioner fan is an energy-saving, novel, high-efficiency and variable-rotating-speed centrifugal fan, and has the characteristics of compact structure, small volume, high pressure, convenience in installation and the like. However, in the operation process of the indoor fan of the air conditioner, the problem of noise change caused by wind resistance change is not fully considered in the prior art, the speed of the fan is always controlled according to a constant speed in the whole control process, and optimal control is not achieved, so that the root cause of noise increase when the wind resistance changes is caused.
According to the problem of insufficient noise suppression during the operation of a fan of an air conditioner indoor unit in the prior art, the invention provides a method for reducing the operation speed of the fan by controlling the voltage setting so as to suppress the noise increase caused by the increase of the wind resistance.
Disclosure of Invention
The invention aims to provide a control method and a control device for a fan of an air conditioner indoor unit, which solve the problem that in the prior art, when the fan of the air conditioner indoor unit is in operation, noise is increased when wind resistance is increased, so that the comfort level and the performance of an air conditioner are reduced.
The invention provides a control method of a fan in an air conditioner, which is characterized in that when the wind resistance of the fan in the air conditioner is increased, the load is increased, the corresponding current is also increased, the system feeds the current of a motor driving plate back to an upper control plate to form a current loop, the running speed of the fan in the air conditioner is reduced through voltage setting, and the influence of noise is weakened, and the method comprises the following steps:
step 1: acquiring the current state of a fan, and detecting the operation mode of an air conditioner internal unit;
step 2: acquiring the running speed of the current fan;
and step 3: acquiring current of a motor drive plate in the current fan operation process;
and 4, step 4: acquiring voltage in the running process of the fan according to current fed back by the motor driving board at the moment;
and 5: and regulating voltage according to the analog quantity, and reducing the running speed of the fan.
Optionally, the blower in step 1 uses a direct current motor, the state of the blower includes an on state and an off state, and the operation mode of the air conditioner internal unit includes left-right wind sweeping and up-down wind sweeping.
Optionally, when the operation speed of the fan of the indoor unit of the air conditioner in step 2 is greater than a certain set value v1, the load becomes large, so that noise generated when the fan of the indoor unit of the air conditioner operates becomes large.
Optionally, when the current of the fan in the operation process in the step 4 is greater than a certain set value, the operation speed of the fan may be reduced by adjusting the voltage.
The invention provides a control device of a fan of an air conditioner indoor unit, which comprises: the device comprises a fan control module, a fan detection module and a fan driving module.
The fan detection module is connected with the fan control module and used for detecting the operation information of the current fan and outputting the operation information of the fan to the fan control module and the fan driving module; the fan control module is connected with the fan driving module and used for providing a voltage signal for the fan driving module according to the fan control module and controlling the running rotating speed of the fan through analog quantity voltage regulation; the fan driving module is connected with the fan detection module and used for detecting the rotating speed of the running fan and feeding back a frequency signal fed back by the fan driving module to the fan control module.
Optionally, the fan detection module includes the fan information receiving unit, a fan type detection unit, and the fan type information output unit.
Optionally, the fan control module includes a fan control program unit, an adaptive control unit, and a fan operation parameter output unit.
Optionally, the fan driving module includes a motor driving board and a dc motor, and is configured to drive the current fan to operate according to an analog voltage signal output by the fan control module.
Optionally, the fan detection module feeds back the current of the motor drive board to the fan control module to form a current loop. When the current is increased, the running speed of the fan is reduced through the control voltage.
The invention at least comprises the following beneficial effects:
1. according to the air conditioner indoor unit fan control method, the current of the motor drive plate is fed back to the fan control module, the running speed of the fan is reduced according to the control voltage, the wind resistance of the swinging blade of the air conditioner is reduced, and the noise of the air conditioner is weakened.
2. The fan control device for the air conditioner indoor unit can be applied to various indoor air conditioners, is easy to install, easy to realize, low in cost and high in use value, and greatly improves the performance of the air conditioner.
Drawings
The features and advantages of the present invention will be more clearly understood by reference to the accompanying drawings, which are illustrative and should not be construed as limiting the invention in any way, and in which:
FIG. 1 is a flow chart of a method for controlling a fan of an air conditioner indoor unit according to the present invention;
fig. 2 is a schematic diagram of a control device for a fan of an air conditioner indoor unit according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more intuitive, the technical solutions of the present invention will be described more clearly and completely with reference to the accompanying drawings of the control method and apparatus 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.
As shown in fig. 1, the present invention provides a method for controlling a fan of an air conditioner internal unit, comprising:
step S1: acquiring the current state of a fan, and detecting the operation mode of an air conditioner internal unit;
step S2: acquiring the running speed of the current fan;
step S3: acquiring current of a motor drive plate in the current fan operation process;
step S4: acquiring voltage in the running process of the fan according to current fed back by the motor driving board at the moment;
step S5: and regulating voltage according to the analog quantity, and reducing the running speed of the fan.
Optionally, the blower in step S1 uses a dc motor, the state of the blower includes an on state and an off state, and the operation mode of the air conditioner indoor unit includes left-right wind sweeping and up-down wind sweeping.
Optionally, when the operation speed of the air conditioner internal unit fan in step S2 is greater than a certain set value v1, the load becomes large, so that noise generated when the air conditioner internal unit fan operates becomes large.
Optionally, in step S4, the motor driving board feeds back a frequency signal to the upper control board, and if the current is greater than a set value, step 5 is performed to reduce the rotation speed of the fan by controlling the voltage.
As shown in fig. 2, the present invention provides a control device for a fan of an air conditioner internal unit, comprising: fan control module, fan detection module and fan drive module, wherein:
the fan detection module is connected with the fan control module, detects the operation information of the current fan and outputs the operation information of the current fan to the fan control module and the fan driving module; the fan control module is connected with the fan driving module and used for providing a voltage signal for the fan driving module according to the fan control module and controlling the rotating speed of the current fan through analog quantity voltage regulation; the fan driving module is connected with the fan detection module and used for detecting the running rotating speed of the fan at the moment and feeding back a frequency signal fed back by the fan driving module to the fan control module. The fan detection module comprises a fan information receiving unit, a fan type detection unit and a fan type information output unit. The fan control module comprises a fan control program unit, a self-adaptive control unit and a fan operation parameter output unit. The fan driving module comprises a motor driving board and a direct current motor, and the motor driving board and the direct current motor are used for driving the current fan to operate according to the analog quantity voltage signals output by the fan control module.
The fan detection module feeds the current of the motor drive plate back to the fan control module to form a current loop. When the current is increased, the running speed of the fan is reduced through the control voltage setting.
It is obvious that those skilled in the art can obtain various effects not directly mentioned according to the respective embodiments without trouble from various structures according to the embodiments of the present invention. While the invention/embodiments of the invention have been disclosed above, it is not limited to the applications listed in the description and the embodiments. It can be applied to all kinds of fields suitable for the present invention. Other modifications may be readily implemented by those skilled in the art. It is therefore intended that the invention not be limited to the exact details and illustrations described and illustrated herein, but fall within the scope of the appended claims and equivalents thereof.
Claims (9)
1. The utility model provides a controlling means of air conditioner internal unit fan which characterized in that includes: the fan detection module is connected with the fan control module and used for detecting the operation information of the current fan and outputting the operation information of the fan to the fan control module and the fan drive module; the fan control module is connected with the fan driving module and used for providing a voltage signal for the fan driving module according to the fan control module and controlling the running rotating speed of the fan through analog quantity voltage regulation; the fan driving module is connected with the fan detection module and used for detecting the rotating speed of the running fan and feeding back a frequency signal fed back by the fan driving module to the fan control module.
2. The device for controlling the fan of the indoor unit of the air conditioner as claimed in claim 1, wherein the fan detection module comprises the fan information receiving unit, a fan type detection unit and the fan type information output unit.
3. The control device of the fan in the air conditioner according to claim 2, wherein the fan control module comprises a fan control program unit, an adaptive control unit and a fan operation parameter output unit.
4. The control device of a fan in an air conditioner according to claim 2, wherein the fan driving module comprises a motor driving board and a dc motor, and is configured to drive the current fan to operate according to the analog voltage signal output by the fan control module.
5. The control device of a fan in an air conditioner as claimed in claim 4, wherein the fan detection module feeds back the current of the motor driving plate to the fan control module to form a current loop; when the current is increased, the running speed of the fan is reduced through the control voltage.
6. A control method of a fan of an air conditioner indoor unit is characterized in that,
the method specifically comprises the following steps:
step 1: acquiring the current state of a fan, and detecting the operation mode of an air conditioner internal unit;
step 2: acquiring the running speed of the current fan;
and step 3: acquiring current of a motor drive plate in the current fan operation process;
and 4, step 4: acquiring voltage in the running process of the fan according to current fed back by the motor driving board at the moment;
and 5: and regulating voltage according to the analog quantity, and reducing the running speed of the fan.
7. The method as claimed in claim 6, wherein the blower uses a DC motor, the blower status includes ON status and OFF status, and the air conditioner operation mode includes left-right wind sweeping and up-down wind sweeping.
8. The method for controlling the fan of the indoor unit of the air conditioner as claimed in claim 6, wherein when the operating speed of the fan of the indoor unit of the air conditioner is higher than a certain set value v1, the load becomes larger, so that the noise generated when the fan of the indoor unit of the air conditioner operates becomes larger.
9. The method as claimed in claim 6, wherein the motor driving board of the fan driving module feeds back a frequency signal to the upper control board, and if the current is greater than a predetermined value, the rotation speed of the fan is reduced by controlling the voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011293031.2A CN112484244A (en) | 2020-11-18 | 2020-11-18 | Control method and device for fan of air conditioner indoor unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011293031.2A CN112484244A (en) | 2020-11-18 | 2020-11-18 | Control method and device for fan of air conditioner indoor unit |
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| Publication Number | Publication Date |
|---|---|
| CN112484244A true CN112484244A (en) | 2021-03-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011293031.2A Pending CN112484244A (en) | 2020-11-18 | 2020-11-18 | Control method and device for fan of air conditioner indoor unit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114576818A (en) * | 2022-05-07 | 2022-06-03 | 中山大洋电机股份有限公司 | Control method for flow-limiting derating of fresh air conditioner |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204787044U (en) * | 2015-06-19 | 2015-11-18 | 广东美的制冷设备有限公司 | Drive arrangement and air conditioner of indoor fan of air conditioner |
| CN106152385A (en) * | 2015-04-10 | 2016-11-23 | 中山大洋电机股份有限公司 | The control method of a kind of blower motor and the control method of a kind of air-conditioning |
| CN108168033A (en) * | 2017-11-20 | 2018-06-15 | 珠海格力电器股份有限公司 | Fan control method and device, control circuit and air conditioner |
| CN108253595A (en) * | 2018-01-17 | 2018-07-06 | 广东美的暖通设备有限公司 | The processing method of motor speed, the processing system of motor speed and air conditioner |
-
2020
- 2020-11-18 CN CN202011293031.2A patent/CN112484244A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106152385A (en) * | 2015-04-10 | 2016-11-23 | 中山大洋电机股份有限公司 | The control method of a kind of blower motor and the control method of a kind of air-conditioning |
| CN204787044U (en) * | 2015-06-19 | 2015-11-18 | 广东美的制冷设备有限公司 | Drive arrangement and air conditioner of indoor fan of air conditioner |
| CN108168033A (en) * | 2017-11-20 | 2018-06-15 | 珠海格力电器股份有限公司 | Fan control method and device, control circuit and air conditioner |
| CN108253595A (en) * | 2018-01-17 | 2018-07-06 | 广东美的暖通设备有限公司 | The processing method of motor speed, the processing system of motor speed and air conditioner |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114576818A (en) * | 2022-05-07 | 2022-06-03 | 中山大洋电机股份有限公司 | Control method for flow-limiting derating of fresh air conditioner |
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Application publication date: 20210312 |
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