CN111306719A - Fan control method and device and air conditioner outdoor unit - Google Patents
Fan control method and device and air conditioner outdoor unit Download PDFInfo
- Publication number
- CN111306719A CN111306719A CN201811509291.1A CN201811509291A CN111306719A CN 111306719 A CN111306719 A CN 111306719A CN 201811509291 A CN201811509291 A CN 201811509291A CN 111306719 A CN111306719 A CN 111306719A
- Authority
- CN
- China
- Prior art keywords
- fan
- speed
- mode
- temperature
- less
- 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.)
- Pending
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
- F24F11/62—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
-
- 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
- F24F2110/10—Temperature
- F24F2110/12—Temperature of the outside air
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses a fan control method, a fan control device and an air conditioner outdoor unit, wherein the fan control method comprises the following steps: acquiring the current operating frequency f of the compressor; when f is less than or equal to the predetermined critical frequency f0When the temperature of the outer pipe of the fan is lower than the preset temperature, controlling the fan to run according to a first mode, wherein the first mode is based on the current ambient temperature of the fan or the current temperature of the outer pipe of the fan; when f > f0And controlling the fan to operate according to a second mode. The invention directly controls the running mode of the fan by detecting the running frequency f of the compressor, thereby not only saving energy and reducing consumption, but also solving the defect of inflexible matching of the rotating speed of the fan, leading the efficiency of the fan to be higher, and avoiding the condition that the rotating speed is not matched with the heat exchange quantityAnd the running frequency of the compressor is directly detected, so that the reliability is high, and the error caused by inaccurate temperature measurement of the ring temperature probe is avoided.
Description
Technical Field
The invention relates to the field of air conditioners, in particular to a fan control method and device and an air conditioner outdoor unit.
Background
In a conventional outdoor unit of an air conditioner, a hot air blower generally radiates heat from a heat exchanger at a constant rotation speed, which causes unnecessary energy waste.
An existing improvement technical scheme is as follows: acquiring the pressure of an air conditioning system and the temperature of an external environment; the method comprises the steps that the operation frequency of a first fan is adjusted so that the pressure of an air conditioning system and the temperature of an external environment meet preset conditions; and adjusting the operating frequency of the second fan to enable the outlet temperature of the first heat exchanger and the outlet temperature of the second heat exchanger to be equal. This method has two disadvantages: (1) because the ambient temperature thermal bulb is interfered by external factors, errors are easily caused, and the correct control rate of the system to the rotating speed of the fan is reduced; (2) the system controls the first fan firstly and then controls the second fan, the reflecting arc in the control process is too long, the control time is prolonged, the flexibility is poor, and the fault rate of a control interval is increased.
Accordingly, the prior art is yet to be improved and developed.
Disclosure of Invention
In view of the above-mentioned shortcomings of the prior art, an object of the present invention is to provide a fan control method, a fan control device and an outdoor unit of an air conditioner, which are used to solve the problem of poor reliability of the existing fan control method.
The technical scheme of the invention is as follows:
a fan control method comprises the following steps:
acquiring the current operating frequency f of the compressor;
when f is less than or equal to the predetermined critical frequency f0When the temperature of the outer pipe of the fan is lower than the preset temperature, controlling the fan to run according to a first mode, wherein the first mode is based on the current ambient temperature of the fan or the current temperature of the outer pipe of the fan;
when f > f0And controlling the fan to operate according to a second mode.
The fan control method, wherein the second mode comprises:
under the refrigeration mode, the temperature T of the outer pipe of the fan is obtainedw，
When T iswThe speed of the fan is more than or equal to X, the fan runs at a high speed at a first speed,
when Y is less than TwLess than X, the fan runs at a medium speed at a second speed,
when T iswLess than or equal to Y, the fan runs at a third speed at a low speed,
wherein X, Y is respectively the upper critical temperature and the lower critical temperature of the outer tube, and X is more than Y.
The fan control method, wherein the second mode comprises:
under the heating mode, the ambient temperature T of the fan is obtainedH，
When T isHLess than or equal to M, the fan runs at a first speed at a high speed,
when M < THIf the speed is less than N, the fan runs at a medium speed at a second speed,
when T isHThe speed of the fan is more than or equal to N, the fan runs at the third speed at low speed,
m, N is respectively a preset critical temperature under the environment where the fan is located and a preset critical temperature above the environment, and M is less than N.
In the fan control method, in the second mode, the operating frequency of the compressor is divided into 3 intervals from high to low, wherein the intervals are A, B, C respectively,
when f is equal to A, the first speed is n11＝a1f2+b1f+c1The second speed is n21＝a1f2+b1f+c1150, third speed n31＝a1f2+b1f+c1-300；
When f is equal to B, the first speed is n12＝a2f2+b2f+c2+150, second speed n22＝a2f2+b2f+c2The third speed is n32＝a2f2+b2f+c2-150；
When f is equal to C, the first speed is n13＝a3f2+b3f+c3+300, second speed n23＝a3f2+b3f+c3+150, third speed n33＝a3f2+b3f+c3；
Wherein, a1、b1、c1、a2、b2、c2、a3、b3、c3Is the coefficient of the corresponding quadratic function.
The fan control method is characterized in that in the first mode, the running speed of the fan is n0＝a4f2+b4f+c4Wherein a is4、b4、c4Is the coefficient of a quadratic function.
A fan control apparatus comprising:
the frequency detection module is used for acquiring the current operating frequency f of the compressor;
a controller for controlling the operation mode of the fan when f is less than or equal to a preset critical frequency f0When the temperature of the outer pipe of the fan is lower than the preset temperature, controlling the fan to run according to a first mode, wherein the first mode is based on the current ambient temperature of the fan or the current temperature of the outer pipe of the fan; when f > f0And controlling the fan to operate according to a second mode.
The fan control device further comprises:
a first temperature sensor for acquiring the outer tube temperature T of the fan in the refrigeration modew；
The controller is used for controlling the second mode of fan, the second mode includes:
when T iswThe speed of the fan is more than or equal to X, the fan runs at a high speed at a first speed,
when Y is less than TwLess than X, the fan runs at a medium speed at a second speed,
when T iswLess than or equal to Y, the fan runs at a third speed at a low speed,
wherein X, Y is respectively the upper critical temperature and the lower critical temperature of the outer tube, and X is more than Y.
The fan control device further comprises:
a second temperature sensor for acquiring the ambient temperature T of the fan in the heating modeH；
The controller is used for controlling the first mode of fan, first mode includes:
when T isHLess than or equal to M, the fan runs at a first speed at a high speed,
when M < THIf the speed is less than N, the fan runs at a medium speed at a second speed,
when T isHThe speed of the fan is more than or equal to N, the fan runs at the third speed at low speed,
m, N is respectively a preset critical temperature under the environment where the fan is located and a preset critical temperature above the environment, and M is less than N.
A fan control apparatus comprising a storage medium storing computer instructions that, when executed, implement a fan control method as described above.
An outdoor unit of an air conditioner comprises the fan control device.
Has the advantages that: the invention provides the fan control method, the current operating frequency and the ambient temperature of the compressor are integrated, or the current operating frequency of the compressor and the temperature of the outer pipe of the fan are integrated to control the operating speed of the fan, and the accuracy and the reliability of the operating speed of the wind control machine can be improved.
Drawings
Fig. 1 is a diagram of an embodiment of a fan control method according to the present invention.
Fig. 2 is a diagram illustrating an embodiment of a fan control method according to the present invention in a cooling mode.
Fig. 3 is a diagram illustrating an embodiment of a fan control method according to the present invention in a heating mode.
Fig. 4 is a diagram illustrating another fan control method according to an embodiment of the present invention in the cooling mode.
Fig. 5 is a diagram illustrating another fan control method according to an embodiment of the present invention in a heating mode.
Fig. 6 is a diagram of an embodiment of a fan control apparatus according to the present invention.
Fig. 7 is a diagram of another embodiment of a fan control apparatus according to the present invention.
Fig. 8 is a diagram of another embodiment of a fan control apparatus according to the present invention.
Detailed Description
The invention provides a fan control method, a fan control device and an air conditioner outdoor unit, and the invention is further described in detail below in order to make the purpose, technical scheme and effect of the invention clearer and clearer. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In the preferred embodiment of the fan control method provided by the present invention, the control logic is as shown in fig. 1, and includes the steps of:
and S1, acquiring the current running frequency f of the compressor.
S2, when f is less than or equal to f0And (preset critical frequency), controlling the fan to operate according to a first mode, wherein the first mode is based on the current environment temperature of the fan or the current outer pipe temperature of the fan.
S3, when f > f0And controlling the fan to operate according to the second mode.
The invention controls the running speed of the fan by integrating the current running frequency and the ambient temperature of the compressor or integrating the current running frequency of the compressor and the temperature of the outer pipe of the fan, and can improve the accuracy and the reliability of the running speed of the wind control machine.
The present invention provides a preferred embodiment of a fan control method in a cooling mode, as shown in fig. 2. Wherein the second mode (i.e., the normal mode) includes the steps of:
s311, under the refrigeration mode, obtaining the temperature T of the outer pipe of the fanw。
S312, when TwThe speed of the fan is more than or equal to X, the fan runs at a high speed at a first speed,
s313, when Y is less than TwLess than X, the fan runs at a medium speed at a second speed,
s314, when TwLess than or equal to Y, the fan runs at a third speed at a low speed,
wherein X, Y is the preset upper critical temperature of the outer tube and the lower critical temperature X of the outer tube which are more than Y.
Specifically, the upper critical temperature X of the outer tube and the lower critical temperature Y of the outer tube may be set based on empirical values. For example, after the air conditioner is started, the compressor runs at a high frequency, the heat exchange amount is large, the temperature of the outer pipe is high and exceeds the upper critical temperature X, and at the moment, the fan runs at a high speed, so that the heat exchanger can fully dissipate heat; when the indoor temperature approaches or reaches the target temperature, the compressor is adjusted to operate at medium frequency, the heat dissipation capacity is reduced at the moment, the temperature of the outer pipe is reduced under the action of the fan operating at high speed, and when the temperature is lower than the upper critical temperature X, the fan operates at medium speed to maintain the dynamic balance of heat exchange; when the indoor temperature is lower than the set target temperature and exceeds the threshold value, the compressor runs at low frequency, the heat dissipation capacity is small at the moment, and when the temperature of the outer pipe is reduced to the lower critical temperature Y, the fan is adjusted from medium speed to low speed. In this embodiment, through detecting the outer tube temperature, let fan functioning speed and the operating frequency of compressor can the accurate matching, reduced the consumption.
The invention also provides a preferred embodiment of a fan control method in the heating mode, which is shown in fig. 3. Wherein the second mode (i.e., the normal mode) includes the steps of:
s321, acquiring the ambient temperature T of the fan in the heating modeH。
S322, when THLess than or equal to M, the fan runs at a first speed at a high speed,
s323, when M is less than THIf the speed is less than N, the fan runs at a medium speed at a second speed,
s324, when THThe fan runs at the third speed at a low speed which is more than or equal to N，
M, N is respectively a preset critical temperature under the environment where the fan is located and a preset critical temperature above the environment, and M is less than N.
In the heating mode, the environment temperature is generally low, and the heat exchanger is easy to frost if the heat exchange is insufficient. Therefore, when the environmental temperature is lower than the set critical temperature M in the environment, the fan needs to run at a high speed, so that the heat exchanger can fully absorb heat; when the environment temperature is higher than the set upper environment critical temperature N, the temperature difference between the heat exchanger and the environment is large, the environment heat can be fully absorbed, and the fan can operate at a low speed; when the environment temperature is in the [ M, N ] interval, the fan runs at the medium speed. In this embodiment, through the detection ring border temperature, let fan functioning speed and the operating frequency of compressor can the accurate matching, reduced the consumption.
In the two preferred embodiments of the refrigeration mode and the heating mode, the operation mode of the fan is directly controlled by detecting the operation frequency f of the compressor, and when the operation frequency of the compressor is lower, the system adjusts the fan to operate according to a first mode (namely, an energy-saving mode); when the running frequency of the compressor is high, the system controls the fan to run according to a second mode (namely a common mode), so that the rotating speed of the fan can be accurately matched with the requirement of the heat exchange quantity. Meanwhile, the running frequency of the compressor is directly detected, so that the reliability is high, and the control process of the invention has short reflection arc and sensitive response.
The invention also provides a preferred embodiment of a specific control method of the running speed of the fan in the common mode. Specifically, the operation frequency of the compressor is divided into 3 sections from high to low, which are A, B, C respectively, and in the cooling mode, as shown in fig. 4.
When f belongs to A, the fan control method comprises the following steps:
s3121, when TwThe fan runs at a first speed n11＝a1f2+b1f+c1。
S3131, when Y < TwLess than X, the fan runs at a second speed, which is n21＝a1f2+b1f+c1-150。
S3141, when T iswLess than or equal to Y, the fan runs at a third speed which is n31＝a1f2+b1f+c1-300。
When f is equal to B, the fan control method comprises the following steps:
s3122, when TwThe fan runs at a first speed n12＝a2f2+b2f+c2+150。
S3132, when Y < TwLess than X, the fan runs at a second speed, which is n22＝a2f2+b2f+c2。
S3142, when T iswLess than or equal to Y, the fan runs at a third speed which is n32＝a2f2+b2f+c2-150。
When f is equal to C, the fan control method comprises the following steps:
s3123, when TwThe fan runs at a first speed n13＝a3f2+b3f+c3+300。
S3133, when Y < TwLess than X, the fan runs at a second speed, which is n23＝a3f2+b3f+c3+150。
S3143, when T iswLess than or equal to Y, the fan runs at a third speed which is n33＝a3f2+b3f+c3。
The principle of the technical scheme is the same, and the invention also provides a control method of the speed of the fan in the heating mode, as shown in fig. 5.
When f belongs to A, the fan control method comprises the following steps:
s3221, when THLess than or equal to M, the fan runs at a first speed at a high speed, and the first speed is n11＝a1f2+b1f+c1。
S3231When M is less than THIf the speed is less than N, the fan runs at the middle speed of the second speed, and the second speed is N21＝a1f2+b1f+c1-150。
S3241, when THThe fan runs at a third speed N at a low speed31＝a1f2+b1f+c1-300。
When f is equal to B, the fan control method comprises the following steps:
s3222, when THLess than or equal to M, the fan runs at a first speed at a high speed, and the first speed is n11＝a1f2+b1f+c1。
S3232, when M < THIf the speed is less than N, the fan runs at the middle speed of the second speed, and the second speed is N21＝a1f2+b1f+c1-150。
S3242, when THThe fan runs at a third speed N at a low speed31＝a1f2+b1f+c1-300。
When f is equal to C, the fan control method comprises the following steps:
s3223, when THLess than or equal to M, the fan runs at a first speed at a high speed, and the first speed is n11＝a1f2+b1f+c1。
S3233, when M < THIf the speed is less than N, the fan runs at the middle speed of the second speed, and the second speed is N21＝a1f2+b1f+c1-150。
S3243, when THThe fan runs at a third speed N at a low speed31＝a1f2+b1f+c1-300。
Wherein, a1、b1、c1、a2、b2、c2、a3、b3、c3Is the coefficient of the corresponding quadratic function.
The present invention also provides a preferred embodiment of the calculation of the operating speed of the fan in the energy saving mode,the running speed of the fan in the energy-saving mode is n0＝a4f2+b4f+c4Wherein a is4、b4、c4Is the coefficient of a quadratic function.
Practical experience proves that the fan rotating speed corresponding to the compressor frequency in each frequency interval is approximately distributed in a quadratic function curve, and a curve equation can be derived by taking three values on the curve. For example, the compressor frequency interval is divided into: the high frequency A range is 75-90 Hz, the intermediate frequency B range is 60-75Hz, the low frequency C range is 45-60Hz, and the energy-saving D range is 30-45 Hz. When the compressor frequency is 75Hz at the lowest frequency in the first interval A, corresponding to the fan rotating speed of 650n/rpm, the highest frequency of 90Hz corresponding to the fan highest rotating speed of 800n/rpm, and the frequency of 80Hz corresponding to the rotating speed of 770n/rpm at a certain point in the interval, the coefficient a in the quadratic equation of which the frequency belongs to the interval A can be determined according to the three points1、b1、c1. The frequency is in an interval A, the rotating speed of the fan is divided into three gears (height, middle speed and low speed), the high-speed interval is 650-800 n/rpm, the middle-speed ratio is high-speed and low-speed 150, the interval is 500-650 n/rpm, the low-speed ratio is high-speed and low-speed 300, and the interval is 350-500 n/rpm. For the corresponding fan speed equations in the other intervals B, C and D, a may be determined in this manner2、b2、c2、a3、b3、c3、a4、b4、c4Specific values of (a).
The present invention provides a preferred embodiment of a fan control device, as shown in fig. 6, including:
and the frequency detection module 1 is used for acquiring the current operating frequency f of the compressor.
A controller 2 for controlling the operation mode of the fan when f is less than or equal to a preset critical frequency f0When the temperature of the outer pipe of the fan is lower than the preset temperature, controlling the fan to run according to a first mode, wherein the first mode is based on the current ambient temperature of the fan or the current temperature of the outer pipe of the fan; when f > f0And controlling the fan to operate according to the second mode.
Based on fig. 6, the present invention provides another preferred embodiment of a wind turbine control device, and as shown in fig. 7, the wind turbine control device further includes:
a first temperature sensor 3 for acquiring the outer tube temperature T of the fan in the refrigeration modew。
The controller 2 is used to control the normal mode of the fan: when T iswMore than or equal to X, adjusting the fan to run at a first speed at a high speed,
when Y is less than TwIf the speed is less than X, the fan is adjusted to operate at the second speed and the middle speed,
when T iswLess than or equal to Y, adjusting the fan to run at a third speed at a low speed,
wherein X, Y is respectively the upper critical temperature and the lower critical temperature of the outer tube, and X is more than Y.
Based on fig. 6, the present invention provides another preferred embodiment of a wind turbine control device, and as shown in fig. 8, the wind turbine control device further includes:
a second temperature sensor 4 for acquiring the ambient temperature T of the fan in the heating modeH。
The controller 2 is used to control the normal mode of the fan: when T isHLess than or equal to M, the fan runs at a first speed at a high speed,
when M < THIf the speed is less than N, the fan runs at a medium speed at a second speed,
when T isHThe speed of the fan is more than or equal to N, the fan runs at the third speed at low speed,
m, N is respectively a preset critical temperature under the environment where the fan is located and a preset critical temperature above the environment, and M is less than N.
The specific setting methods of the first speed, the second speed and the third speed are described in detail in the fan control method, and the detailed description of the invention is omitted.
The present invention further provides a preferred embodiment of a fan control apparatus, including a storage medium, where the storage medium stores computer instructions, and when the computer instructions are executed, the fan control method according to any of the foregoing embodiments is implemented.
The invention also provides an air conditioner outdoor unit which comprises the fan control device in any one of the embodiments.
According to the fan control device and the air conditioner outdoor unit based on the fan control device, the running mode of the fan is directly controlled by detecting the running frequency f of the compressor, so that not only can energy be saved and consumption be reduced, but also the defect that the matching of the rotating speed of the fan is inflexible is overcome, the fan efficiency is higher, the mismatching of the rotating speed and the heat exchange quantity is avoided, the running frequency of the compressor is directly detected, the reliability is high, the reflection arc in the control process is short, and the reaction is sensitive.
In summary, the invention provides a fan control method, a fan control device and an air conditioner outdoor unit, the fan control method and the air conditioner outdoor unit directly control the operation mode of the fan by detecting the operation frequency f of the compressor, thereby saving energy, reducing consumption, overcoming the defect of inflexible matching of the rotating speed of the fan, improving the efficiency of the fan, avoiding the mismatching of the rotating speed and the heat exchange quantity, and having high reliability, short reflection arc in the control process and sensitive response due to the fact that the operation frequency of the compressor is directly detected.
It is to be understood that the invention is not limited to the examples described above, but that modifications and variations may be effected thereto by those of ordinary skill in the art in light of the foregoing description, and that all such modifications and variations are intended to be within the scope of the invention as defined by the appended claims.
Claims (10)
1. A fan control method is characterized by comprising the following steps:
acquiring the current operating frequency f of the compressor;
when f is less than or equal to the predetermined critical frequency f0When the temperature of the outer pipe of the fan is lower than the preset temperature, controlling the fan to run according to a first mode, wherein the first mode is based on the current ambient temperature of the fan or the current temperature of the outer pipe of the fan;
when f > f0And controlling the fan to operate according to a second mode.
2. The fan control method of claim 1, wherein the second mode comprises:
under the refrigeration mode, the temperature T of the outer pipe of the fan is obtainedw，
When T iswNot less than X, windThe machine is operated at a high speed at a first speed,
when Y is less than TwLess than X, the fan runs at a medium speed at a second speed,
when T iswLess than or equal to Y, the fan runs at a third speed at a low speed,
wherein X, Y is respectively the upper critical temperature and the lower critical temperature of the outer tube, and X is more than Y.
3. The fan control method of claim 1, wherein the second mode comprises:
under the heating mode, the ambient temperature T of the fan is obtainedH，
When T isHLess than or equal to M, the fan runs at a first speed at a high speed,
when M < THIf the speed is less than N, the fan runs at a medium speed at a second speed,
when T isHThe speed of the fan is more than or equal to N, the fan runs at the third speed at low speed,
m, N is respectively a preset critical temperature under the environment where the fan is located and a preset critical temperature above the environment, and M is less than N.
4. The fan control method according to claim 2 or 3, wherein in the second mode, the operating frequency of the compressor is divided into 3 sections from high to low, respectively A, B, C,
when f is equal to A, the first speed is n11＝a1f2+b1f+c1The second speed is n21＝a1f2+b1f+c1150, third speed n31＝a1f2+b1f+c1-300；
When f is equal to B, the first speed is n12＝a2f2+b2f+c2+150, second speed n22＝a2f2+b2f+c2The third speed is n32＝a2f2+b2f+c2-150；
When f is equal to C, the first speed is n13＝a3f2+b3f+c3+300, second speed n23＝a3f2+b3f+c3+150, third speed n33＝a3f2+b3f+c3；
Wherein, a1、b1、c1、a2、b2、c2、a3、b3、c3Is the coefficient of the corresponding quadratic function.
5. The method of claim 1, wherein in the first mode, the operating speed of the fan is n0＝a4f2+b4f+c4Wherein a is4、b4、c4Is the coefficient of a quadratic function.
6. A fan control apparatus, comprising:
the frequency detection module is used for acquiring the current operating frequency f of the compressor;
a controller for controlling the operation mode of the fan when f is less than or equal to a preset critical frequency f0When the temperature of the outer pipe of the fan is lower than the preset temperature, controlling the fan to run according to a first mode, wherein the first mode is based on the current ambient temperature of the fan or the current temperature of the outer pipe of the fan; when f > f0And controlling the fan to operate according to a second mode.
7. The fan control apparatus of claim 6, further comprising:
a first temperature sensor for acquiring the outer tube temperature T of the fan in the refrigeration modew；
The controller is used for controlling the second mode of fan, the second mode includes:
when T iswThe speed of the fan is more than or equal to X, the fan runs at a high speed at a first speed,
when Y is less than TwLess than X, the fan runs at a medium speed at a second speed,
when T iswLess than or equal to Y, the fan runs at a third speed at a low speed,
wherein X, Y is respectively the upper critical temperature and the lower critical temperature of the outer tube, and X is more than Y.
8. The fan control apparatus of claim 6, further comprising:
a second temperature sensor for acquiring the ambient temperature T of the fan in the heating modeH；
The controller is used for controlling the first mode of fan, first mode includes:
when T isHLess than or equal to M, the fan runs at a first speed at a high speed,
when M < THIf the speed is less than N, the fan runs at a medium speed at a second speed,
when T isHThe speed of the fan is more than or equal to N, the fan runs at the third speed at low speed,
m, N is respectively a preset critical temperature under the environment where the fan is located and a preset critical temperature above the environment, and M is less than N.
9. A fan control apparatus comprising a storage medium, wherein the storage medium stores computer instructions that, when executed, implement a fan control method according to any of claims 1-5.
10. An outdoor unit of an air conditioner, comprising the fan control device as recited in any one of claims 6 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811509291.1A CN111306719A (en) | 2018-12-11 | 2018-12-11 | Fan control method and device and air conditioner outdoor unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811509291.1A CN111306719A (en) | 2018-12-11 | 2018-12-11 | Fan control method and device and air conditioner outdoor unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111306719A true CN111306719A (en) | 2020-06-19 |
Family
ID=71156296
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811509291.1A Pending CN111306719A (en) | 2018-12-11 | 2018-12-11 | Fan control method and device and air conditioner outdoor unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111306719A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111964238A (en) * | 2020-08-24 | 2020-11-20 | 广东美的暖通设备有限公司 | Control method and device of air conditioner, air conditioner and readable storage medium |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002228234A (en) * | 2001-01-29 | 2002-08-14 | Hitachi Ltd | Air conditioner and its control method |
| KR20040080860A (en) * | 2003-03-14 | 2004-09-20 | 삼성전자주식회사 | Device and method for controlling outdoor fan of air conditioner |
| JP2006162214A (en) * | 2004-12-10 | 2006-06-22 | Matsushita Electric Ind Co Ltd | Air conditioner |
| CN201093668Y (en) * | 2007-08-10 | 2008-07-30 | 以莱特空调(深圳)有限公司 | System for controlling air conditioner outdoor fan rotational speed |
| CN101714847A (en) * | 2009-12-18 | 2010-05-26 | 海信科龙电器股份有限公司 | Method for controlling air conditioning outdoor motor |
| CN103216908A (en) * | 2013-04-01 | 2013-07-24 | 宁波奥克斯电气有限公司 | Control method for outdoor fan in refrigeration of variable frequency multi-split air-conditioning unit |
| CN103574835A (en) * | 2012-07-31 | 2014-02-12 | 美的集团股份有限公司 | Method and device for controlling outdoor fan of air conditioner |
| CN103868203A (en) * | 2014-03-28 | 2014-06-18 | 广州松下空调器有限公司 | Method for controlling direct-current motor of outdoor unit of air conditioner and air conditioner with method for controlling direct-current motor of outdoor unit of air conditioner |
| CN104913447A (en) * | 2015-06-01 | 2015-09-16 | 广东美的制冷设备有限公司 | Air conditioner, and control method and control device for outdoor fan in air conditioner |
| CN105091230A (en) * | 2015-08-10 | 2015-11-25 | 珠海格力电器股份有限公司 | Double-cross-flow air conditioner as well as fan control device and method of double-cross-flow air conditioner |
| CN106440241A (en) * | 2016-10-25 | 2017-02-22 | 青岛海信电子设备股份有限公司 | Speed regulation control method of air conditioner outdoor fan |
| CN107062541A (en) * | 2017-04-07 | 2017-08-18 | 广东美的暖通设备有限公司 | Air-conditioning system and its control method of outdoor fan, device |
| CN108151250A (en) * | 2017-12-26 | 2018-06-12 | 海信（山东）空调有限公司 | Control method for frequency conversion air conditioner and device |
-
2018
- 2018-12-11 CN CN201811509291.1A patent/CN111306719A/en active Pending
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002228234A (en) * | 2001-01-29 | 2002-08-14 | Hitachi Ltd | Air conditioner and its control method |
| KR20040080860A (en) * | 2003-03-14 | 2004-09-20 | 삼성전자주식회사 | Device and method for controlling outdoor fan of air conditioner |
| JP2006162214A (en) * | 2004-12-10 | 2006-06-22 | Matsushita Electric Ind Co Ltd | Air conditioner |
| CN201093668Y (en) * | 2007-08-10 | 2008-07-30 | 以莱特空调(深圳)有限公司 | System for controlling air conditioner outdoor fan rotational speed |
| CN101714847A (en) * | 2009-12-18 | 2010-05-26 | 海信科龙电器股份有限公司 | Method for controlling air conditioning outdoor motor |
| CN103574835A (en) * | 2012-07-31 | 2014-02-12 | 美的集团股份有限公司 | Method and device for controlling outdoor fan of air conditioner |
| CN103216908A (en) * | 2013-04-01 | 2013-07-24 | 宁波奥克斯电气有限公司 | Control method for outdoor fan in refrigeration of variable frequency multi-split air-conditioning unit |
| CN103868203A (en) * | 2014-03-28 | 2014-06-18 | 广州松下空调器有限公司 | Method for controlling direct-current motor of outdoor unit of air conditioner and air conditioner with method for controlling direct-current motor of outdoor unit of air conditioner |
| CN104913447A (en) * | 2015-06-01 | 2015-09-16 | 广东美的制冷设备有限公司 | Air conditioner, and control method and control device for outdoor fan in air conditioner |
| CN105091230A (en) * | 2015-08-10 | 2015-11-25 | 珠海格力电器股份有限公司 | Double-cross-flow air conditioner as well as fan control device and method of double-cross-flow air conditioner |
| CN106440241A (en) * | 2016-10-25 | 2017-02-22 | 青岛海信电子设备股份有限公司 | Speed regulation control method of air conditioner outdoor fan |
| CN107062541A (en) * | 2017-04-07 | 2017-08-18 | 广东美的暖通设备有限公司 | Air-conditioning system and its control method of outdoor fan, device |
| CN108151250A (en) * | 2017-12-26 | 2018-06-12 | 海信（山东）空调有限公司 | Control method for frequency conversion air conditioner and device |
Non-Patent Citations (2)
| Title |
|---|
| 潘自强等: "《空调器原理与维修》", 30 June 2000 * |
| 郑兆志: "《家用空调器原理及其安装维修技术》", 28 February 2003 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111964238A (en) * | 2020-08-24 | 2020-11-20 | 广东美的暖通设备有限公司 | Control method and device of air conditioner, air conditioner and readable storage medium |
| CN111964238B (en) * | 2020-08-24 | 2022-03-25 | 广东美的暖通设备有限公司 | Control method and device of air conditioner, air conditioner and readable storage medium |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104596055B (en) | Rotating speed of air conditioner fan control method and device | |
| CN105423489B (en) | The control method of multi-split air conditioner | |
| CN105352109B (en) | VAV box temperature control system and method based on weather compensation | |
| CA3089968C (en) | Peak demand response operation of hvac systems | |
| CN109724225B (en) | Method for improving heat exchange performance of outdoor unit of direct-current variable-frequency air conditioner based on temperature difference detection | |
| CN109695945A (en) | Air-conditioning heat exchanger automatically cleaning control method, system and air-conditioning | |
| CN202853051U (en) | Air conditioner | |
| CN105299843A (en) | Method for controlling air conditioner to enter defrosting mode and air conditioner | |
| CN108644970B (en) | Method for automatically controlling air outlet of air conditioner | |
| US11480353B2 (en) | Peak demand response operation of HVAC system with face-split evaporator | |
| CN203215927U (en) | Air volume control system of central air conditioner | |
| CN109210616B (en) | Indoor unit, variable air volume control method thereof, air conditioner, computer device, and storage medium | |
| WO2018188522A1 (en) | Air conditioner heating operation control method | |
| CN109708195A (en) | A kind of heat pump and its control method suitable for High aititude | |
| CN113959052B (en) | Air conditioner control method, air conditioner control device and air conditioner | |
| CN108131755A (en) | A kind of electrical equipment component cabinet humiture cooperative control method | |
| CN110513812A (en) | A kind of air conditioning control method and air conditioner | |
| CN106482295A (en) | Indoor fan control method and device | |
| CN112240581A (en) | Kitchen air conditioning system and control method thereof | |
| CN106225171B (en) | Fan control method for shutdown of air conditioner and air conditioner | |
| CN105605748B (en) | A kind of air-conditioning system geomantic omen joint debugging control method and system | |
| CN111306719A (en) | Fan control method and device and air conditioner outdoor unit | |
| CN108224695A (en) | The vav terminal system and control method that a kind of operating condition automatically switches | |
| CN106440260B (en) | A kind of air supply motor method for controlling number of revolution, controller and air conditioner | |
| CN106091282A (en) | The control method of air-conditioner outdoor unit |
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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200619 |
|
| RJ01 | Rejection of invention patent application after publication |