CN103759396B - A kind of indoor fan method for controlling number of revolution of air conditioner - Google Patents
A kind of indoor fan method for controlling number of revolution of air conditioner Download PDFInfo
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- CN103759396B CN103759396B CN201410046188.3A CN201410046188A CN103759396B CN 103759396 B CN103759396 B CN 103759396B CN 201410046188 A CN201410046188 A CN 201410046188A CN 103759396 B CN103759396 B CN 103759396B
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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
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- 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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Abstract
A kind of indoor fan method for controlling number of revolution of air conditioner, can be by the air quantity gear that user independently selects using n kind different algorithm and m from the difference of target temperature according to actual temperature, and corresponds to same air quantity gear, by algorithm R1To algorithm RnObtained air speed value is gradually successively decreased.When the algorithm of high wind speed is transitioned into the algorithm of low wind speed, air speed value is steadily decreasing rotation speed of the fan, to reduce the difference of outlet temperature from starting to during reaching target temperature in air conditioner, greatly improve the comfort of user；User can independently select different air quantity gears simultaneously, to generate different air-out effects, greatly increase the use freedom degree of user.
Description
Technical field
The present invention relates to field of air conditioner control, the indoor fan method for controlling number of revolution of specifically a kind of air conditioner.
Background technique
There are two kinds of air quantity modes for the indoor fan of the air conditioner of the prior art:
The first: user may be adjusted to any one air quantity gear, according to the corresponding revolution speed air-supply of the gear；
Second: based on the control to compressor start-stop；When compressor operation, air quantity is adjusted in height according to room temperature
Switch between middle-grade air quantity, when compressor stops, air quantity is switched to low air quantity.
The first current air quantity mode is not suitable for frequency changer: firstly, the compressor frequency of frequency changer can be with room
The variation of temperature and adjust, if the air-supply air quantity of indoor fan does not adjust therewith, in fact it could happen that low when high when leaving air temp
Phenomenon；Then, since frequency changer is there are the stage that frequency declines, indoor evaporator temperature is caused to rise, if the wind maintained like
Amount will lead to condensate evaporation, cause customer's body-sensing bad.
The not foot point of second of air quantity mode: firstly, automatic adjustment air quantity gear, may cause customer's misunderstanding, such as wind
Amount is Wind Volume by the middle air quantity automatic adjustment being arranged, if customer is manually set to Wind Volume again and can find that air-conditioning does not have at this time
Response, customer are misinterpreted as air-conditioning failure；Then, when air quantity automatically switches, it is not specified by switch speed, generates making an uproar for air quantity switching
Sound.
For the prior art, need to propose the new technical solution of one kind to solve the above problems.
Summary of the invention
The invention reside in, in deficiency, provide a kind of indoor fan revolving speed controlling party of air conditioner the shortcomings that overcoming the prior art
Method is suitable for existing frequency changer, improves the comfort of user and uses freedom degree.
The present invention is realized by technical solution once: a kind of indoor fan method for controlling number of revolution of air conditioner, packet
Include following steps:
Step 1: n rotation speed of the fan algorithm R is preset1、R2、...Rn, wherein n is the integer more than or equal to 3；
Step 2: default n and the one-to-one fiducial temperature Δ t of the rotation speed of the fan algorithm1、Δt2、...Δtn, and
Δt1To Δ tnTaper off trend；
Step 3: the default m air quantity gear D that can be changed by user's control1、D2...Dm, wherein m is more than or equal to 2
Integer, and correspond to same air quantity gear, by rotation speed of the fan algorithm R1To rotation speed of the fan algorithm RnObtained air speed value is gradually passed
Subtract；
Step 4: the target temperature and air quantity gear control signal of user are received；
Step 5: the actual temperature t in room where detecting air conditioner by temperature sensor, and calculate the actual temperature
The temperature difference between target temperature obtains current temperature difference t；
Step 6: current temperature difference t is matched with the n fiducial temperature, if Δ t and Δ tpMatching, then adopt
Use RpAlgorithm, wherein [1, n] p ∈, p are integer；
Step 7: determining current air quantity gear, obtains required air speed value in conjunction with currently employed algorithm；
Step 8: indoor fan operating is controlled according to air speed value.
Compared with prior art, a kind of indoor fan method for controlling number of revolution of air conditioner of the invention provides three kinds of calculations
Method and it is multiple each algorithm can be corresponded to by the air quantity gear that user independently selects, each gear and have a specific air speed value,
And corresponding to same air quantity gear, the air speed value obtained by the first algorithm to third algorithm is gradually successively decreased.The beneficial effect is that
When the algorithm of high wind speed is transitioned into the algorithm of low wind speed, air speed value is steadily decreasing rotation speed of the fan, thus air conditioner from
Starting reduces the difference of outlet temperature, has greatly improved the comfort of user to during reaching target temperature；It uses simultaneously
Family can independently select different air quantity gears, to generate different air-out effects, greatly increase using freely for user
Degree.
Further, in step 7, the corresponding relationship of different air quantity gears and algorithms of different formation numerical value tables, true
Settled preceding temperature difference t determines air speed value with after air quantity gear by searching for table, and control fan running with the air speed value.Its
Beneficial effect is, greatly increases the efficiency and accuracy of system, simplifies algorithm.
Further, it in step 5, is stored into reservoir using temperature value t as historical data；In step 6, currently
Temperature difference t and fiducial temperature tpAfter matching, further by current temperature value t compared with preceding ten historical temperature values, if decline
Trend then uses algorithm Rp；Otherwise algorithm R is usedp-1.In the operation phase, temperature be possible to generate rebound and present rise or
The state not declined will keep current algorithm to decline temperature at this time.Improve effectiveness of the invention and accuracy.
Further, further include following steps between step 7 and step 8: control indoor fan with constant acceleration a from
Current wind speed is gradually switched to required wind speed.Speed is carried out using certain acceleration when various algorithms or gear switch to cut
It changes, so that revolving speed is slowly varying, noise will not be generated, user will not be bothered.
Further, the absolute value of constant acceleration a is 10rpm/min.
Further, rpqFor in air quantity gear DqIt is lower to use algorithm RpObtained air speed value corresponds to same algorithm Rp, full
Sufficient rp2=rp1+dp；rp3=rp2+2*dp；rpq=rp(q-1)+2*dp；Wherein, [1, n] p ∈, p are integer, and p ∈ [3, m], q are integer；
rp1With dpFor independent variable, rp1For basic gear wind speed, dpFor in algorithm RpUnder difference value.Using this algorithm, same
The difference between air speed value for selecting different stalls to obtain under algorithm is not only not too big and noise is generated in switch speed, but also full
The demand of sufficient user.
Further, in air quantity gear DxUnder, r1xTo rnxIt is d with toleranceaSuccessively decrease, wherein [1, m] x ∈, x is integer, daFor
One independent variable.Using this algorithm, the difference between the air speed value for using algorithms of different to obtain under same gear both will not
It is excessive and noise is generated in switch speed, and meet the needs of users.
Algorithm there are three being preset in step 1, including R1、R2With R3；It is preset in step 2 there are three fiducial temperature, is wrapped
Include Δ t1、Δt2With Δ t3, Δ t1For any value greater than 3.5 DEG C, Δ t2For any number between 0.5 DEG C to 3.5 DEG C, Δ
t3For any value less than 0.5 DEG C.In actual use, the range of these three fiducial temperatures meets demand used in everyday.
Air quantity gear there are five being preset in step 2.In actual use, this five air quantity gears meet routine use
Demand.
In order to better understand and implement, the invention will now be described in detail with reference to the accompanying drawings.
Detailed description of the invention
Fig. 1 is a kind of flow chart of the indoor fan method for controlling number of revolution of air conditioner of the invention
Fig. 2 is the specific implementation flow chart of the S4 in Fig. 1
Specific embodiment
Referring to Fig. 1, it is a kind of indoor fan method for controlling number of revolution of air conditioner of the invention.Specific step is as follows:
S1: n rotation speed of the fan algorithm R is preset1、R2、...Rn, wherein n is the integer more than or equal to 3；
Default n and the one-to-one fiducial temperature Δ t of the rotation speed of the fan algorithm1、Δt2、...Δtn, and Δ t1It arrives
ΔtnTaper off trend；
The default m air quantity gear D that can be changed by user's control1、D2...Dm, wherein m is greater than or equal to 2, and corresponds to
Same air quantity gear, by algorithm R1To algorithm RnObtained air speed value is gradually successively decreased；
S2: the target temperature and air quantity gear control signal of user are received；
S3: the actual temperature t in room where detecting air conditioner by temperature sensor, and calculate the actual temperature and mesh
The temperature difference between temperature is marked, current temperature difference t is obtained；
S4: current temperature difference t is matched with the n fiducial temperature, if Δ t and Δ tpMatching then uses RpIt calculates
Method, wherein p is 1 to the arbitrary integer between n；
S5: determining current air quantity gear, obtains required air speed value in conjunction with currently employed algorithm；
S6: indoor fan operating is controlled according to air speed value.
Further, in S5, different air quantity gears forms the corresponding of numerical value tables from different rotation speed of the fan algorithms and closes
System determines air speed value after the current temperature difference t of determination and air quantity gear by searching for table, and control fan with the air speed value
Operating.The beneficial effect is that greatly increasing the efficiency and accuracy of system, algorithm is simplified.
| R1 | R2 | ... | Rn | |
| D1 | r11 | r21 | ... | rn1 |
| D2 | r12 | r22 | ... | rn2 |
| ... | ... | ... | ... | ... |
| Dm | r1m | r2m | ... | rnm |
Air quantity gear and the relationship of rotation speed of the fan algorithm are as follows in the present invention:
If rpqFor in air quantity gear DqIt is lower to use algorithm RpObtained air speed value meets:
1. corresponding to same algorithm Rp, there is rp2=rp1+dp；
rp3=rp2+2*dp；
rpq=rp(q-1)+2*dp；
Wherein, p is 1 to any integer between n, and q is 3 to any integer between m；rp1With dpFor independent variable, rp1
For basic gear wind speed, dpFor in algorithm RpUnder difference value.
2. in air quantity gear DxUnder, r1xTo rnxIt is d with toleranceaSuccessively decrease, wherein x is 1 to any integer between m, daFor
One independent variable.
Further, it in S3, is stored into reservoir using temperature value t as historical data；In S4, current temperature difference
T and fiducial temperature tpAfter matching, further by current temperature value t compared with preceding ten historical temperature values, if downward trend, then
Using algorithm Rp；Otherwise algorithm R is usedp-1.In the operation phase, temperature is possible to generate rebound and present and rise or do not decline
State, to keep current algorithm to decline temperature at this time.Improve effectiveness of the invention and accuracy.
Further, further include following steps between S5 and S6: control indoor fan is with constant acceleration a from current wind speed
Gradually it is switched to required wind speed.The absolute value of constant acceleration a is preferably 10rpm/min.Various algorithms or gear switch
Shi Caiyong certain acceleration, which carries out speed switching, will not generate noise so that revolving speed is slowly varying, will not bother user.
Illustrate the principle of the present invention to be clearer, please refers to the specific value table of the present embodiment.
| R1 | R2 | R3 | |
| Current temperature difference t | Δt1 | Δt2 | Δt3 |
| Compressor frequency f | 90hz < f | 75hz < f < 90hz | F < 75hz |
| D1 | 750 | 700 | 650 |
| D2 | 800 | 750 | 700 |
| D3 | 900 | 850 | 800 |
| D4 | 1000 | 950 | 900 |
| D5 | 1100 | 1050 | 1000 |
In the present embodiment, Δ t1For any value greater than 3.5 DEG C, Δ t2For the arbitrary number between 0.5 DEG C to 3.5 DEG C
Value, Δ t3For any value less than 0.5 DEG C.In same air quantity gear, rotation speed of the fan algorithm R1Corresponding air speed value compares fan
Revolving speed algorithm R2The high 50rpm of air speed value, rotation speed of the fan algorithm R2Corresponding air speed value is than rotation speed of the fan algorithm R3Air speed value it is high
50rpm, i.e., above-mentioned tolerance daFor 50rpm.In same algorithm, using air quantity gear D1To using air quantity gear D5Wind speed
Value is successively successively decreased.As shown in Fig. 2, when system works, it is assumed that artificially selected air quantity gear is D5, and judge current temperature difference t
Greater than 3.5 DEG C, using algorithm R1, it is determined that rotation speed of the fan is 1100rpm；When the current temperature difference is 0.5 DEG C 3.5 DEG C of < of < Δ t
When, using algorithm R2, rotation speed of the fan is down to 1050rpm；When current temperature difference t is less than 0.5 DEG C, using algorithm R3, rotation speed of the fan
It is down to 1000rpm.If artificially selected air quantity gear is D4, and judge that current temperature difference t is greater than 3.5 DEG C, using algorithm R1,
Then determine that rotation speed of the fan is 1000rpm；When the current temperature difference is 0.5 DEG C 3.5 DEG C of < of < Δ t, using algorithm R2, fan turn
Prompt drop is to 950rpm；When current temperature difference t is less than 0.5 DEG C, using algorithm R3, rotation speed of the fan is down to 900rpm.If similarly switching
To other air quantity gears, then final rotation speed of the fan is determined according to the actual temperature difference and air quantity gear.
The complete course of work is as follows: when air-conditioning just starts, room temperature and big (such as the room of remote controler set temperature difference
30 DEG C of temperature, 24 DEG C of set temperature, difference is 6 DEG C), compressor operation frequency is high (maximum frequency), is turned using the big fan of air quantity
Short-cut counting method R1, can not only obtain very strong refrigerating capacity but available low cold wind sense (refrigerating capacity reaches the air-conditioning most
Big refrigerating capacity, 11 DEG C of leaving air temp), it is ensured that the rapidity of room temperature decline and the comfort of customer.With operation of air conditioner,
The difference of indoor environment temperature and remote controler set temperature reduces (such as 26 DEG C of room temperature, 24 DEG C of set temperature, difference is 2 DEG C),
Compressor frequency is reduced to medium level (the 2/3 of maximum frequency), rotation speed of the fan algorithm R medium using air quantity at this time2, indoor
Evaporator temperature improves (evaporator temperature rises to 12 DEG C) a little, and leaving air temp also slightly rises (leaving air temp rises to 13 DEG C).
After operating a period of time, the difference of indoor environment temperature and remote controler set temperature close to (such as 24.5 DEG C of room temperature, setting temperature
24 DEG C of degree, difference are 0.5 DEG C), compressor enters low frequency operating, rotation speed of the fan algorithm R small using air quantity at this time3, outlet air
Temperature slightly rises (leaving air temp rises to 14 DEG C).During the decline of entire room temperature, compressor operation frequency is continuous
Decline, the also constantly adjustment therewith of indoor air quantity algorithm, so that indoor evaporator temperature variation reduces (3 DEG C), customer can reach
To metastable leaving air temp, body-sensing comfort was not only ensured but also had reached energy-efficient effect.
A kind of working principle of the indoor fan method for controlling number of revolution of air conditioner of the invention is as follows: when air-conditioning just starts,
Compressor operation frequency is high, and corresponding interior air quantity is high, can not only obtain very strong refrigerating capacity but also available low cold wind
Sense, allows people to be comfortable on；With operation of air conditioner, indoor environment temperature is reduced, and compressor frequency is reduced to medium level, at this point,
Air quantity also declines therewith, and leaving air temp slightly rises；After operating a period of time, room temperature close to remote controler set temperature,
Compressor enters low frequency operating, and air quantity further declines at this time, and leaving air temp is gradually stabilized；Pass through above air quantity tune
The leaving air temp difference of section, startup stage and range of stability is small, and indoor body-sensing is comfortable.
Compared with prior art, pressure of the indoor fan method for controlling number of revolution of a kind of air conditioner of the invention in air conditioner
When contracting machine frequency conversion, the revolving speed of fan is further controlled by processor, wind is reduced while the frequency of compressor is gradually reduced
The revolving speed of fan, to reduce the difference of outlet temperature from starting to during reaching target temperature in air conditioner, greatly mention
The comfort of user is risen.It further can also be by artificially controlling the revolving speed of fan.It ensure that the comfort of user,
It can need to change wind speed by user at any time again, improve the freedom degree used.
The above is only the preferred embodiment of the present invention, it is noted that above-mentioned preferred embodiment is not construed as pair
Limitation of the invention, protection scope of the present invention should be defined by the scope defined by the claims..For the art
For those of ordinary skill, without departing from the spirit and scope of the present invention, several improvements and modifications can also be made, these change
It also should be regarded as protection scope of the present invention into retouching.
Claims (9)
1. a kind of indoor fan method for controlling number of revolution of air conditioner, it is characterised in that the following steps are included:
Step 1: n rotation speed of the fan algorithm R is preset1、R2、...Rn, wherein n is the integer more than or equal to 3；
Step 2: default n and the one-to-one fiducial temperature Δ t of the rotation speed of the fan algorithm1、Δt2、...Δtn, and Δ t1
To Δ tnTaper off trend；
Step 3: the default m air quantity gear D that can be changed by user's control1、D2...Dm, wherein m is whole more than or equal to 2
Number, and correspond to same air quantity gear, by rotation speed of the fan algorithm R1To rotation speed of the fan algorithm RnObtained air speed value is gradually successively decreased；
Step 4: the target temperature and air quantity gear control signal of user are received；
Step 5: the actual temperature t in room where detecting air conditioner by temperature sensor, and calculate the actual temperature and mesh
The temperature difference between temperature is marked, current temperature difference t is obtained；
Step 6: current temperature difference t is matched with the n fiducial temperature, if Δ t and Δ tpMatching then uses RpIt calculates
Method, wherein [1, n] p ∈, p are integer；
Step 7: determining current air quantity gear, obtains required air speed value in conjunction with currently employed algorithm；
Step 8: indoor fan operating is controlled according to air speed value.
2. a kind of indoor fan method for controlling number of revolution of air conditioner according to claim 1, it is characterised in that: in step 7
In, different air quantity gears and different rotation speed of the fan algorithms form the corresponding relationship of numerical value tables, the current temperature difference t of determination with
After air quantity gear, air speed value is determined by searching for table, and fan running is controlled with the air speed value.
3. a kind of indoor fan method for controlling number of revolution of air conditioner according to claim 2, it is characterised in that: in step 5
In, it is stored into reservoir using temperature value t as historical data；
In step 6, current temperature difference t and fiducial temperature Δ tpAfter matching, further by current temperature value t and preceding ten history
Temperature value compares, and if downward trend, then uses algorithm Rp；Otherwise algorithm R is usedp-1。
4. a kind of indoor fan method for controlling number of revolution of air conditioner according to claim 3, it is characterised in that: in step 7
Further include following steps between step 8: control indoor fan is gradually switched to constant acceleration a from current wind speed required
Wind speed.
5. a kind of indoor fan method for controlling number of revolution of air conditioner according to claim 4, it is characterised in that: this it is constant plus
The absolute value of speed a is 10rpm/min.
6. a kind of indoor fan method for controlling number of revolution of air conditioner according to claim 1, it is characterised in that: rpqFor in wind
Measure gear DqIt is lower to use algorithm RpObtained air speed value corresponds to same algorithm Rp, have
rp2=rp1+dp；
rp3=rp2+2*dp；
rpq=rp(q-1)+2*dp；
Wherein, [1, n] p ∈, p are integer, and q ∈ [3, m], q are integer；rp1With dpFor independent variable, rp1For basic gear wind speed,
dpFor in algorithm RpUnder difference value.
7. a kind of indoor fan method for controlling number of revolution of air conditioner according to claim 6, it is characterised in that: in air quantity shelves
Position DxUnder, r1xTo rnxIt is d with toleranceaSuccessively decrease, wherein [1, m] x ∈, x is integer, daFor an independent variable.
8. a kind of indoor fan method for controlling number of revolution of air conditioner according to claim 7, it is characterised in that: in step 1
In preset there are three algorithm, including R1、R2With R3；
Temperature difference there are three being preset in step 2, including Δ t1、Δt2With Δ t3, Δ t1For any value greater than 3.5 DEG C, Δ
t2For any number between 0.5 DEG C to 3.5 DEG C, Δ t3For any value less than 0.5 DEG C.
9. a kind of indoor fan method for controlling number of revolution of air conditioner according to claim 8, it is characterised in that: in step 2
In preset there are five air quantity gear.
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