CN110762730A - Natural wind simulation method and device and air conditioner - Google Patents
Natural wind simulation method and device and air conditioner Download PDFInfo
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- CN110762730A CN110762730A CN201910984350.9A CN201910984350A CN110762730A CN 110762730 A CN110762730 A CN 110762730A CN 201910984350 A CN201910984350 A CN 201910984350A CN 110762730 A CN110762730 A CN 110762730A
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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
- F24F11/0001—Control or safety arrangements for ventilation
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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
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/56—Remote control
- F24F11/58—Remote control using Internet communication
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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
- F24F11/62—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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
- F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
- F24F11/77—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity by controlling the speed of ventilators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—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
- F24F11/79—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling the direction of the supplied air
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/88—Electrical aspects, e.g. circuits
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2140/00—Control inputs relating to system states
- F24F2140/40—Damper positions, e.g. open or closed
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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
Abstract
The invention provides an air conditioner natural wind simulation method, which comprises the following steps: acquiring a variation curve of the air volume of the fan along with the rotating speed; presetting a periodic variation relation of the air volume along with time; calculating a variation curve of the rotating speed of the fan along with the time; and adjusting the rotating speed of the fan according to the time to realize the trend that the air volume changes periodically along with the time. The invention sets the periodic variation relation of the air quantity of the fan along with the time, and combines the variation curve of the air quantity along with the rotating speed to obtain the variation curve of the rotating speed along with the time, thereby realizing the periodic variation of the air quantity of the fan along with the time, being capable of simulating the effect of natural wind which is suddenly changed, not needing to use an air speed sensor, being free from external infection, and having better effect of simulating the natural wind.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to a natural wind simulation method and device and an air conditioner.
Background
At present, the air supply mode of the air conditioner mostly adopts the mechanical air supply methods such as directional air supply, swing air supply and the like, and the method has the advantages of low frequency of wind speed change, over-strong or over-weak blowing feeling, low comfort level of human body and relatively high comfort level of natural wind.
In order to achieve the effect of simulating natural wind by an air conditioner, in the prior art, a wind speed sensor is usually used for detecting a wind speed value of natural wind in real time, a curve of the change of the wind speed of the natural wind along with time is researched, then a change curve of the rotating speed of a fan of an indoor unit of the air conditioner along with time is obtained by utilizing the curve, and finally the effect of simulating the natural wind is achieved. However, in the existing natural wind simulation method, firstly, the wind speed sensor cannot simulate natural wind under the condition of no wind or severe wind speed change or the simulation effect of the natural wind is poor, secondly, calculation of a large amount of data is required, and the method has time delay and low efficiency.
Disclosure of Invention
The invention solves the problems of poor natural wind simulation effect and low efficiency in the prior art.
In order to solve the above problems, a first aspect of the present invention provides an air conditioner natural wind simulation method, including: the method comprises the following steps:
acquiring a variation curve of the air volume of the fan along with the rotating speed;
presetting a periodic variation relation of the air volume along with time;
calculating a variation curve of the rotating speed of the fan along with the time;
and adjusting the rotating speed of the fan according to the time to realize the trend that the air volume changes periodically along with the time.
The invention sets the periodic variation relation of the air quantity of the fan along with the time, and combines the variation curve of the air quantity along with the rotating speed to obtain the variation curve of the rotating speed along with the time, thereby realizing the periodic variation of the air quantity of the fan along with the time, being capable of simulating the effect of natural wind which is suddenly changed, not needing to use an air speed sensor, being free from external infection, and having better effect of simulating the natural wind.
Furthermore, the fan is one or N same or different fans, N is an integer greater than or equal to 2, and a plurality of fans are arranged, so that the effect of simulating natural wind can be realized by each fan.
Furthermore, the periods in the periodic variation relation of the air volume of the N fans along with the time are the same, the frequencies are the same, and the phases of at least part of the fans are different.
Furthermore, the N fans are sequentially arranged, the phase difference of two adjacent fans is equal, and the phase differences of the N fans are added to form one period; therefore, the plurality of fans can integrally form a circulation of air volume change, and the air volumes of the plurality of fans are changed in a large and small mode in sequence, so that a more real and finer natural wind effect is realized.
Further, N is 9, and the preset periodic variation relationship between the air volume and the time is as follows: q is equal to Qn0Sin (2 π ft- θ), where Qn is the wind rate of the nth fan, Q0And f is the rated air volume of the fan at the rated rotating speed, the frequency of the air volume change of the fan is f, (n-1) × 40 degrees, and the characteristic that a sine curve is more consistent with the natural air volume distribution is adopted.
Furthermore, the user can adjust the frequency f through the remote controller or the mobile terminal app, the frequency of the air volume change of the fan can be adjusted according to the user experience, and the comfort level of natural wind is improved.
Furthermore, a change curve of the air volume of the fan and the rotating speed can be obtained through experiments, and the change relation of the air volume along with the change of the rotating speed is obtained by fitting with a least square method.
Further, the fan is an axial fan; the axial flow fan has the advantages of relatively small volume, convenience in control, low noise and the like, and is suitable for controlling multiple fans.
The second aspect of the present invention provides a control device, which adopts the above control method, and the control device includes the following modules:
the acquisition module is used for acquiring a variation curve of the air volume and the rotating speed of the fan;
the calculation module is used for calculating a change curve of the rotating speed of the fan along with the time according to a preset periodic change relation of the air volume along with the time and the change curve of the air volume along with the rotating speed;
and the execution module is used for adjusting the rotating speed of the fan according to the time according to the change curve of the rotating speed along with the time.
In a third aspect of the present invention, an air conditioner is provided, which includes a computer readable storage medium storing a computer program and a processor, wherein the computer program is read by the processor and executed by the processor, so as to implement the above natural wind simulation method.
Drawings
FIG. 1 is a schematic flow chart of a control method according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a fan arrangement of an air conditioner according to an embodiment of the present invention;
FIG. 3 is a curve of variation of the air volume of the fan with the rotation speed according to the embodiment of the present invention;
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
As shown in fig. 1, an embodiment of the present invention provides a method for simulating natural wind of an air conditioner; specifically, the natural wind simulation method includes the steps of:
firstly, acquiring a variation curve of the air volume of the fan along with the rotating speed, wherein the variation curve of the air volume of the fan along with the rotating speed is an inherent attribute of the fan, namely under the condition that the structural characteristics of the fan are determined, the variation relation of the air volume of the fan along with the rotating speed is determined and can be acquired through experiments or acquired from a manufacturer for producing the fan;
secondly, presetting a periodic variation relation of the air volume along with time;
then, calculating to obtain a variation curve of the rotating speed of the fan along with the time according to the variation curve of the air volume along with the rotating speed and the periodic variation relation of the air volume along with the time;
and finally, adjusting the rotating speed of the fan according to the time, so that the trend that the air volume changes periodically along with the time can be realized.
Preferably, the fan is one or N same or different fans, and N is an integer greater than or equal to 2.
As described above, the embodiment of the present invention sets the plurality of fans, and sets the air volume of each fan to periodically change with time, so that each fan can simulate natural wind without using a wind speed sensor and being interfered by the outside.
As shown in fig. 2, 9 identical axial fans 11 are arranged on an air conditioner indoor cabinet 10 according to the embodiment of the present invention, and the axial fans are utilized, mainly because the axial fans have the advantages of relatively small volume, convenient control, low noise, etc., and are suitable for multi-fan control; preferably, the 9 axial fans are arranged in sequence, the periods of the periodic variation relations of the air volume of the 9 axial fans along with time are the same, the frequencies are the same, the phases are different, the phase difference between two adjacent axial fans is the same, and the 9 phase differences are added to form one period.
Specifically, the preset periodic variation relationship between the air volume and the time is as follows:
for the first fan, its air volumeThe periodic variation relation with time is Q1 ═ Q0*sin(2πft)，
For the second fan, the periodic variation relation of the air volume and the time is Q2 ═ Q0*sin(2πft-40°),
For the third fan, the periodic variation relation of the air volume and the time is Q3 ═ Q0*sin(2πft-80°),
For the fourth fan, the periodic variation relation of the air volume and the time is Q4 ═ Q0*sin(2πft-120°),
For the fifth fan, the periodic variation relation of the air volume and the time is Q5 ═ Q0*sin(2πft-160°),
For the sixth fan, the periodic variation relation of the air volume and the time is Q6 ═ Q0*sin(2πft-200°),
For the seventh fan, the periodic variation relationship between the air volume and the time is Q7 ═ Q0*sin(2πft-240°),
For the eighth fan, the periodic variation relation of the air volume and the time is Q8 ═ Q0*sin(2πft-280°),
For the ninth fan, the periodic variation relationship between the air volume and the time is Q9 ═ Q0*sin(2πft-320°),
Wherein Qn is the air volume of the n-th fan, Q0The rated air volume of the fan at the rated rotating speed is defined, f is the frequency of one period of air volume change of the fan, pi is the circumferential rate, and the characteristic that a sine curve is more consistent with natural air volume distribution is utilized.
Preferably, the initial value of the frequency f is 1, a corresponding button or key is set on a remote controller of an indoor unit or an operation mobile terminal app, and a user can adjust the frequency f according to actual experience of the user, so that the frequency of the air volume change of the axial flow fan is adjusted, the comfort level of natural wind is increased, and the characteristic that the frequency of the natural wind fluctuates randomly is better met.
More than, every axial fan all realizes the periodic variation of amount of wind along with time according to sinusoidal law, and the phase difference of next fan than last fan is 40, 9 axial fan's phase difference is 360, just becomes a cycle, consequently, makes 9 fans also form the circulation that an amount of wind changes on the whole in first cycle, and the amount of wind of 9 fans can be in proper order change suddenly, blows off the natural wind constantly, thereby realizes truer, more exquisite natural wind effect.
Certainly, the periodic variation relationship of the air volume along with the time can also adopt other types of periodic variation relationships, such as a cosine law or a step variation law, the step variation law divides a period into N time periods, the rotating speed of each time period is constant, the air volume is constant, but the air volumes of the N time periods are sequentially decreased and then sequentially increased; more preferably, N fans are included, the air volume of each fan is in a time step-like change relationship, and the N fans sequentially form phase differences.
As shown in fig. 3, in the embodiment of the present invention, a variation curve of the air volume and the rotation speed of the fan is obtained through experiments, and the rated air volume of the axial flow fan is 1800m3And/h, corresponding to a nominal speed of 860 rpm.
Obtaining a linear relation of the change of the air quantity Q along with the rotating speed R by utilizing least square fitting, wherein the linear relation is as follows: q is 2.36R-245, and according to the preset periodic variation relation between the air volume and the time: q is equal to Qn0Sin (2 π ft- (n-1) × 40 °), and when the f initial value is 1, the rotation speed R of the n-th fan can be obtainednTime-dependent variation relationship:
Rn＝(1800sin(6.28t-(n-1)40°)+245)/2.36
and adjusting the rotating speed of each axial flow fan according to the change relation between the rotating speed and the time, so as to realize the periodic change of the air volume of each fan along with the time.
In order to execute the corresponding steps of the control method in the foregoing embodiment, a second aspect of the embodiment of the present invention provides an implementation manner of a control device, which employs the foregoing natural wind simulation method, and the control device includes the following modules:
the acquisition module is used for acquiring a variation curve of the air volume and the rotating speed of the fan;
the calculation module is used for calculating a change curve of the rotating speed of the fan along with the time according to a preset periodic change relation of the air volume along with the time and the change curve of the air volume along with the rotating speed;
and the execution module is used for adjusting the rotating speed of the fan according to the time according to the change curve of the rotating speed along with the time.
The air conditioner 10 disclosed in the embodiment of the present invention includes a computer-readable storage medium storing a computer program and a processor, and when the computer program is read by the processor and executed, the method for simulating natural wind is implemented, in which a plurality of axial fans are provided, the wind volume of each axial fan changes periodically with time, and the phases of the axial fans are different, so that the air outlet of the air conditioner continuously blows out natural wind, and a more real and finer natural wind effect is implemented.
Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (10)
1. A natural wind simulation method, comprising:
acquiring a variation curve of the air volume of the fan along with the rotating speed;
presetting a periodic variation relation of the air volume along with time;
calculating a variation curve of the rotating speed of the fan along with the time;
and adjusting the rotating speed of the fan according to the time to realize the trend that the air volume changes periodically along with the time.
2. A natural wind simulation method according to claim 1, wherein the fan is one or N identical or different fans, N being an integer greater than or equal to 2.
3. The natural wind simulation method according to claim 2, wherein periods of the periodic variation relationship of the wind volumes of the N fans with time are the same, frequencies are the same, and phases of at least some of the fans are different.
4. A natural wind simulation method according to claim 3, wherein N fans are arranged in sequence, phase differences of two adjacent fans are equal, and phase differences of N fans are added to one cycle.
5. A natural wind simulation method according to claim 4, wherein: n is 9, and the preset periodic variation relation between the air volume and the time is as follows: q is equal to Qn0Sin (2 π ft- θ), where Qn is the wind rate of the nth fan, Q0F is the air volume change frequency of the fan, and theta is (n-1) × 40 degrees.
6. The natural wind simulation method of claim 5, wherein the frequency f is adjustable by a user through a remote controller or a mobile terminal app.
7. The natural wind simulation method according to claim 1, wherein a variation curve of the air volume of the fan and the rotation speed is obtained through experiments, and a variation relation of the air volume with the rotation speed is obtained by least square fitting.
8. A natural wind simulation method according to claim 1, wherein the fan is an axial fan.
9. A control device, characterized in that the natural wind simulation method according to any one of claims 1 to 8 is used, and the control device comprises the following modules:
the acquisition module is used for acquiring a variation curve of the air volume and the rotating speed of the fan;
the calculation module is used for calculating a change curve of the rotating speed of the fan along with the time according to a preset periodic change relation of the air volume along with the time and the change curve of the air volume along with the rotating speed;
and the execution module is used for adjusting the rotating speed of the fan according to the time according to the change curve of the rotating speed along with the time.
10. An air conditioner comprising a computer readable storage medium storing a computer program and a processor, the computer program being read and executed by the processor to implement the natural wind simulation method according to any one of claims 1 to 8.
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| CN201910984350.9A CN110762730B (en) | 2019-10-16 | 2019-10-16 | Natural wind simulation method and device and air conditioner |
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| CN201910984350.9A CN110762730B (en) | 2019-10-16 | 2019-10-16 | Natural wind simulation method and device and air conditioner |
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Cited By (4)
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| CN111894886A (en) * | 2020-08-07 | 2020-11-06 | 青岛易来智能科技股份有限公司 | Natural wind output method, fan lamp, storage medium, and electronic device |
| CN111927812A (en) * | 2020-08-14 | 2020-11-13 | 盐城工学院 | Fan with nursing function |
| CN114061101A (en) * | 2021-10-28 | 2022-02-18 | 佛山市顺德区美的电子科技有限公司 | Control method and device, air conditioner fresh air equipment and storage medium |
| CN114508806A (en) * | 2022-02-21 | 2022-05-17 | 西安交通大学 | Dynamic air supply device and method for simultaneously adjusting air supply temperature and flow |
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| CN114508806A (en) * | 2022-02-21 | 2022-05-17 | 西安交通大学 | Dynamic air supply device and method for simultaneously adjusting air supply temperature and flow |
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| Publication number | Publication date |
|---|---|
| CN110762730B (en) | 2020-08-28 |
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