CN105588272B - A kind of air-conditioning draught fan control method and device - Google Patents
A kind of air-conditioning draught fan control method and device Download PDFInfo
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- CN105588272B CN105588272B CN201510641300.2A CN201510641300A CN105588272B CN 105588272 B CN105588272 B CN 105588272B CN 201510641300 A CN201510641300 A CN 201510641300A CN 105588272 B CN105588272 B CN 105588272B
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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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Abstract
The embodiment of the present invention provides a kind of air-conditioning draught fan control method and device, and air-conditioning fan-out capability can be made to be consistent with indoor load.The described method includes：Indoor temperature is detected according to default first detection cycle；At the current detection moment, indoor temperature and the temperature difference of design temperature and indoor temperature change generated in case rate are obtained, alternatively, the variable quantity of acquisition indoor temperature and the temperature difference and indoor temperature of design temperature in a detection cycle；According to temperature difference and indoor temperature change generated in case rate, alternatively, the variable quantity according to temperature difference and indoor temperature in a detection cycle, according to preset rules, controls the indoor fan of fixed frequency air conditioner to operate；Preset rules include：When temperature difference is in preset threshold range, in the case where temperature difference is certain, the variable quantity of the wind speed of indoor fan with indoor temperature change generated in case rate/indoor temperature in a detection cycle is in incrementally reduction trend.The present invention is suitable for field of air conditioning.
Description
Technical field
The present invention relates to field of air conditioning more particularly to a kind of air-conditioning draught fan control method and device.
Background technology
At present, air-conditioning can be divided into convertible frequency air-conditioner and fixed frequency air conditioner.Wherein, fixed frequency air conditioner is by adjusting the wind speed of air-conditioning draught fan
Realize the adjusting to temperature.
By taking indoor fan as an example, fixed frequency air conditioner is controlled using indoor temperature and the temperature difference of user's design temperature as unique
Amount, is roughly divided into several temperature difference sections, each temperature difference section corresponds to specific wind speed, passes through by temperature difference excursion
Indoor temperature is periodically detected, and wind speed is determined according to the temperature difference of indoor temperature and user's design temperature, and then according to institute
Definite wind speed realizes the adjusting to indoor fan wind speed.Since existing air-conditioning draught fan adjusting method is simply according to indoor temperature
Coarse adjustment is carried out to the wind speed of air-conditioning draught fan with the temperature difference of user's design temperature, there is no consider indoor load, therefore meeting
Fan-out capability and the indoor load for causing air-conditioning are inconsistent.Specifically, during heavy load, the fan-out capability of air-conditioning can not meet system
Design temperature is not achieved in cold/heating needs, actual indoor temperature；Light hours, indoor temperature are easier to reach design temperature, room
After interior temperature reaches design temperature, that is, compressor shutdown is controlled, after a period of time, indoor temperature by rise/decline, causes to set again
The temperature difference of constant temperature degree and indoor temperature changes, and at this time compressor need to be controlled to start shooting again while adjust wind turbine wind speed, so
Repeatedly.That is, the light hours, indoor temperature, which can be centered around at design temperature, back and forth shakes, and causes compressor repeatedly starting and stopping machine.
To sum up, existing air-conditioning draught fan control method can cause air-conditioning fan-out capability and indoor load inconsistent, and then make
The comfort and energy saving for obtaining air-conditioning decline, and user experience is poor.
The content of the invention
The embodiment of the present invention provides a kind of air-conditioning draught fan control method and device, at least to solve existing air-conditioning draught fan
The problem of air-conditioning fan-out capability existing for control method and inconsistent indoor load, air-conditioning fan-out capability can be made to be protected with indoor load
It holds unanimously, when load is heavier indoors, ensures that indoor temperature can reach design temperature, when load is lighter indoors, can reduce
The number of start/stop of compressor machine.
In order to achieve the above objectives, the embodiment of the present invention adopts the following technical scheme that：
In a first aspect, a kind of air-conditioning draught fan control method is provided, including：
Indoor temperature is detected according to default first detection cycle；
At the current detection moment, indoor temperature and the temperature difference of design temperature and indoor temperature change generated in case rate are obtained, alternatively, obtaining
The variable quantity of the temperature difference and indoor temperature of indoor temperature and design temperature in a detection cycle is taken, the indoor temperature becomes
Rate represents variation degree of the indoor temperature in a detection cycle；
According to the temperature difference and the indoor temperature change generated in case rate, alternatively, according to the temperature difference and the indoor temperature
Variable quantity in a detection cycle according to preset rules, controls the indoor fan of the fixed frequency air conditioner to operate；Wherein, institute
Stating preset rules includes：When the temperature difference is in preset threshold range, in the case where the temperature difference is certain, the room
The wind speed of inner blower is in being incremented by for variable quantity of the indoor temperature change generated in case rate/indoor temperature in a detection cycle
Reduction trend.
Second aspect provides a kind of air-conditioning draught fan control device, including：Detection unit, acquiring unit and control unit；
The detection unit, for detecting indoor temperature according to default first detection cycle；
The acquiring unit, at the current detection moment, obtaining temperature difference and the interior of indoor temperature and design temperature
Rate of temperature change, alternatively, the change of acquisition indoor temperature and the temperature difference and indoor temperature of design temperature in a detection cycle
Change amount, the indoor temperature change generated in case rate represent variation degree of the indoor temperature in a detection cycle；
Described control unit, for according to the temperature difference and the indoor temperature change generated in case rate, alternatively, according to the temperature difference
Value and variable quantity of the indoor temperature in a detection cycle according to preset rules, control the interior of the fixed frequency air conditioner
Wind turbine operates；Wherein, the preset rules include：When the temperature difference is in preset threshold range, in the temperature difference one
In the case of fixed, the wind speed of the indoor fan is with the indoor temperature change generated in case rate/indoor temperature in a detection cycle
Interior variable quantity is in incrementally reduction trend.
In the prior art, using indoor temperature and the temperature difference of user's design temperature as unique controlled quentity controlled variable, to air-conditioning draught fan
Wind speed carry out coarse adjustment, without considering current indoor load, therefore the fan-out capability and indoor load of air-conditioning can be caused
It is inconsistent so that design temperature is not achieved in indoor temperature when load is heavier indoors, and compressor is anti-when load is lighter indoors
Multiple start and stop.And air-conditioning draught fan control method and device provided in an embodiment of the present invention, unlike the prior art, no longer according only to
Indoor fan is adjusted in indoor temperature and the temperature difference of user's design temperature, but is considering indoor temperature and design temperature
Temperature difference while, also introduce another parameter-indoor temperature change generated in case rate or indoor temperature in a detection cycle
Variable quantity, since the parameter can reflect air-conditioning fan-out capability and indoor load relativeness, the embodiment of the present invention carries
The air-conditioning draught fan control method and device of confession according to the temperature difference and indoor temperature change generated in case rate of indoor temperature and design temperature or
Variable quantity of the indoor temperature in a detection cycle, according to preset rules control indoor fan operating, you can export air-conditioning
Ability is consistent with indoor load, and indoor temperature can reach design temperature during so as to ensure that load is heavier indoors, in room
Internal loading can reduce the number of start/stop of compressor machine when lighter.Specifically, when temperature difference is in preset threshold range,
In the case that temperature difference is certain, control the wind speed of indoor fan with indoor temperature change generated in case rate/indoor temperature in a detection cycle
Interior variable quantity be incremented by and reduce, i.e. indoors variable quantity of the rate of temperature change/indoor temperature in a detection cycle compared with
When big, i.e., when the energy that air-conditioning generates causes the degree of indoor environment temperature variation larger, control indoor fan is with relatively low wind
Speed operating, when the variable quantity of rate of temperature change or indoor temperature in a detection cycle is smaller indoors, i.e., air-conditioning generates
When the degree that energy causes indoor environment temperature to change is smaller, control indoor fan is operated with higher wind speed.Thus, i.e.
Air-conditioning fan-out capability can be made to be consistent with indoor load, indoor temperature, which can reach, during so as to ensure that load is heavier indoors sets
Constant temperature degree can reduce the number of start/stop of compressor machine when load is lighter indoors.
That is, the air-conditioning draught fan control method and device that the embodiment of the present invention provides can solve existing air-conditioning draught fan control
The problem of air-conditioning fan-out capability existing for method processed and inconsistent indoor load, when load is heavier indoors, it is ensured that Indoor Temperature
Degree can reach design temperature, when load is lighter indoors, can reduce the number of start/stop of compressor machine.
Description of the drawings
Fig. 1 (a) is a kind of air-conditioning draught fan control method flow diagram one provided in an embodiment of the present invention；
Fig. 1 (b) is a kind of air-conditioning draught fan control method flow diagram two provided in an embodiment of the present invention；
Fig. 2 (a) is a kind of air-conditioning draught fan control method flow diagram three provided in an embodiment of the present invention；
Fig. 2 (b) is a kind of air-conditioning draught fan control method flow diagram four provided in an embodiment of the present invention；
Fig. 3 (a) is a kind of air-conditioning draught fan control method flow diagram five provided in an embodiment of the present invention；
Fig. 3 (b) is a kind of air-conditioning draught fan control method flow diagram six provided in an embodiment of the present invention；
Fig. 4 (a) is a kind of air-conditioning draught fan control method flow diagram seven provided in an embodiment of the present invention；
Fig. 4 (b) is a kind of air-conditioning draught fan control method flow diagram eight provided in an embodiment of the present invention；
Fig. 5 is a kind of structure diagram one of air-conditioning draught fan control device provided in an embodiment of the present invention；
Fig. 6 is a kind of structure diagram two of air-conditioning draught fan control device provided in an embodiment of the present invention.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other without making creative work
Embodiment belongs to the scope of protection of the invention.
For the ease of clearly describing the technical solution of the embodiment of the present invention, in an embodiment of the present invention, employ " the
One ", the printed words such as " second " distinguish function and the essentially identical identical entry of effect or similar item, and those skilled in the art can
To understand that the printed words such as " first ", " second " are not defined quantity and execution order.
Embodiment one,
The embodiment of the present invention provides a kind of air-conditioning draught fan control method, described as shown in Fig. 1 (a) applied to fixed frequency air conditioner
Method includes：
S101, air-conditioning draught fan control device detect indoor temperature according to default first detection cycle.
S102a, air-conditioning draught fan control device at the current detection moment, obtain indoor temperature and design temperature temperature difference and
Indoor temperature change generated in case rate.
S103a, air-conditioning draught fan control device are according to temperature difference and indoor temperature change generated in case rate, and according to preset rules, control is fixed
The indoor fan operating of frequency air-conditioning.
Alternatively, as shown in Fig. 1 (b), including：
S101, air-conditioning draught fan control device detect indoor temperature according to default first detection cycle.
S102b, air-conditioning draught fan control device at the current detection moment, obtain indoor temperature and design temperature temperature difference and
Variable quantity of the indoor temperature in a detection cycle.
The variable quantity of S103b, air-conditioning draught fan control device according to temperature difference and indoor temperature in a detection cycle, is pressed
According to preset rules, the indoor fan of fixed frequency air conditioner is controlled to operate.
Wherein, the design temperature refers to the target temperature that user is set by air-conditioning remote control or air conditioner indoor unit control panel
Degree；One detection cycle refers to a detection cycle from previous detection moment to the current detection moment.
When variable quantity of the indoor temperature in a detection cycle refers to the indoor temperature at current time with previous detection
The temperature difference of the indoor temperature at quarter.It is readily appreciated that, if variable quantity of the indoor temperature in a detection cycle is smaller, then it represents that
The degree of indoor environment temperature variation (rising or falling) caused by the energy that air-conditioning generates in the detection cycle is smaller, shows
The detection cycle inner room load is relatively heavy；Conversely, if variable quantity of the indoor temperature in a detection cycle is larger, table
Show that the degree of the indoor environment temperature variation in the detection cycle caused by the energy of air-conditioning generation is larger, show detection week
Phase inner room load is relatively light.
The indoor temperature change generated in case rate represents variation degree of the indoor temperature in a detection cycle.Specifically, if
Indoor temperature change generated in case rate is smaller, then it represents that air-conditioning generates in a detection cycle from previous detection moment to the current detection moment
Energy caused by indoor environment temperature variation degree it is smaller, illustrate that this section of time inner room load is relatively heavy；If room
Interior rate of temperature change is larger, then it represents that air-conditioning generates in a detection cycle from previous detection moment to the current detection moment
The degree of indoor environment temperature variation caused by energy is larger, illustrates that this section of time inner room load is relatively light.That is, it is indoor
The variable quantity of rate of temperature change and indoor temperature in a detection cycle can reflect air-conditioning fan-out capability and indoor load
Relativeness.
Preset rules include：When temperature difference is in preset threshold range, in the case where temperature difference is certain, indoor fan
Variable quantity of the wind speed with indoor temperature change generated in case rate/indoor temperature in a detection cycle be in incrementally reduction trend.
Wherein, it is necessary to which explanation, when temperature difference is in preset threshold range, indoor temperature more connects with design temperature
Closely.It is readily appreciated by a person skilled in the art that predetermined threshold value can be obtained by many experiments summary and induction, the embodiment of the present invention
This is not especially limited.
In the prior art, using indoor temperature and the temperature difference of design temperature as unique controlled quentity controlled variable, when indoor temperature is with setting
When constant temperature degree is closer to, that is, indoor fan is controlled to shut down.If current indoor load is heavier, control indoor fan shutdown can make room
Design temperature is not achieved in interior temperature；If current indoor load is lighter, indoor temperature is easier to reach design temperature, easily makes Indoor Temperature
Degree, which is centered around at design temperature, back and forth to be shaken, and causes compressor repeatedly starting and stopping machine.
And air-conditioning draught fan control method provided in an embodiment of the present invention, due to introduce can reflect air-conditioning fan-out capability with
The variable quantity of the parameter of the relativeness of indoor load-indoor temperature change generated in case rate and indoor temperature in a detection cycle, because
This, by with the temperature difference of indoor temperature and design temperature and indoor temperature change generated in case rate or indoor temperature in a detection cycle
Interior variable quantity makes temperature difference be in predetermined threshold value model as control variable, and according to preset rules control indoor fan operating
When enclosing interior, in the case where temperature difference is certain, the wind speed of indoor fan is detected with indoor temperature change generated in case rate/indoor temperature at one
Variable quantity in cycle is incremented by and reduces, i.e. variation of the rate of temperature change/indoor temperature in a detection cycle indoors
When measuring larger (when the degree that the energy that i.e. air-conditioning generates causes indoor environment temperature to change is larger), control indoor fan is with relatively low
Wind speed operating, when the variable quantity of rate of temperature change or indoor temperature in a detection cycle is smaller indoors (air-conditioning production
When the degree that raw energy causes indoor environment temperature to change is smaller), control indoor fan is operated with higher wind speed, you can is made
Air-conditioning fan-out capability is consistent with indoor load, and indoor temperature can reach setting temperature during so as to ensure that load is heavier indoors
Degree can reduce the number of start/stop of compressor machine when load is lighter indoors.
In addition, it should be noted that, it will appreciated by the skilled person that being continuously adjustable interior for wind speed
Wind turbine, such as PG (Pulse Generator) motor, you can according to indoor temperature change generated in case rate or indoor temperature in a detection cycle
The size of interior variable quantity, according to the wind speed consecutive variations of foregoing preset rules control indoor fan, so that air-conditioning fan-out capability
It is consistent with indoor load.And for wind speed it is not continuously adjustable indoor fan, the wind turbine of wind speed is such as adjusted by gear, by
It is limited in gear, air-conditioning draught fan is being adjusted according to the variable quantity of indoor temperature change generated in case rate or indoor temperature in a detection cycle
Wind speed when, the identical special circumstances of different there are indoor load but air-conditioning draught fan gear.
In a kind of realization method of the embodiment of the present invention, air-conditioning draught fan control device obtains indoor temperature and design temperature
Temperature difference can specifically include：
Air-conditioning draught fan control device determines the operational mode of air-conditioning, and obtains the interior at design temperature and current detection moment
Temperature；
If the operational mode of air-conditioning is heating mode, air-conditioning draught fan control device is according to the Indoor Temperature at current detection moment
Degree, design temperature obtain temperature difference according to the first preset formula；
If the operational mode of air-conditioning is refrigeration mode, according to the indoor temperature at current detection moment, design temperature, according to the
Two preset formulas obtain temperature difference.
Wherein, shown in the first preset formula such as formula (1)：
Δ T=Ts-TaiFormula (1)
Shown in second preset formula such as formula (2)：
Δ T=Tai- Ts formula (2)
Wherein, Δ T represents temperature difference, and Ts represents design temperature, TaiRepresent the indoor temperature at current detection moment.
Then, preset rules can also include：
When temperature difference is more than the first preset value, the wind speed of indoor fan is highest wind velocity；Temperature difference is less than the second preset value
When, the wind speed of indoor fan is minimum wind speed.
That is, when air-conditioning in a heating mode indoor temperature be far below design temperature when and air-conditioning it is indoor in cooling mode
When temperature is far above design temperature, control indoor fan is operated with highest target wind speed, to promote air-conditioning fan-out capability, makes room
Interior temperature rapid increase/drop to design temperature；When air-conditioning in a heating mode indoor temperature be far above design temperature when and
When indoor temperature is far below design temperature in cooling mode, control indoor fan is operated air-conditioning with minimum target wind speed, with
Reduce air conditioning energy consumption.
Specifically, air-conditioning draught fan control device obtains indoor temperature change generated in case rate, can specifically include：
Air-conditioning draught fan control device obtains the indoor temperature of previous detection moment, and according to default first detection cycle,
The indoor temperature of previous detection moment and the indoor temperature at current detection moment obtain indoor temperature according to the 3rd preset formula
Change rate.
Wherein, shown in the 3rd preset formula such as formula (3)：
Wherein, σ represents indoor temperature change generated in case rate, Tai-1Represent the indoor temperature of previous detection moment, T represents the first detection
Cycle.
It connects, with TaiRepresent the indoor temperature at current detection moment, Tai-1Represent the indoor temperature of previous detection moment,
Then air-conditioning draught fan control device can specifically obtain change of the indoor temperature in a detection cycle according to formula (4) as follows
Change amount：
Δ t=Tai-Tai-1Formula (4)
Wherein, Δ t represents variable quantity of the indoor temperature in a detection cycle.
Then, in a kind of possible realization method, air-conditioning draught fan control device is pressed according to temperature difference and indoor temperature change generated in case rate
According to preset rules, the indoor fan of fixed frequency air conditioner is controlled to operate, can specifically be included：
Air-conditioning draught fan control device quantifies temperature difference and indoor temperature change generated in case rate, obtains temperature difference on corresponding domain
With the conversion value of indoor temperature change generated in case rate；
Air-conditioning draught fan control device inquires about what is prestored according to the conversion value of temperature difference and the conversion value of indoor temperature change generated in case rate
First rule list obtains target wind speed, and control indoor fan is operated with target wind speed.
Wherein, the first rule list is the correspondence of temperature difference and the wind speed of indoor temperature change generated in case rate and indoor fan, and
First rule list is by largely testing acquisition previously according to preset rules.
It should be noted that it will appreciated by the skilled person that the domain for input variable (i.e. temperature difference,
Indoor temperature change generated in case rate) value range after quantization.
In alternatively possible realization method, air-conditioning draught fan control device is according to temperature difference and indoor temperature in a detection
Variable quantity in cycle according to preset rules, controls the indoor fan of fixed frequency air conditioner to operate, can specifically include：
Air-conditioning draught fan control device quantifies temperature difference and indoor temperature change generated in case rate, obtains temperature difference on corresponding domain
With the conversion value of indoor temperature change generated in case rate；
Air-conditioning draught fan control device inquires about what is prestored according to the conversion value of temperature difference and the conversion value of indoor temperature change generated in case rate
Second Rule table obtains target wind speed, and control indoor fan is operated with target wind speed.
Wherein, Second Rule table is the variable quantity and indoor fan of temperature difference and indoor temperature in a detection cycle
The correspondence of wind speed, and Second Rule table is by largely testing acquisition previously according to preset rules.
Illustratively, it is assumed that indoor fan has high, medium and low third gear wind speed, and a kind of possible first rule list is given below
And Second Rule table difference is as shown in Table 1 and Table 2.In table, H represents the top gear of indoor fan, and M is in expression indoor fan
Fast shelves, L represent the low or first gear of indoor fan, and 0 represents compressor shutdown, remaining each alphabetical meaning is the same.
Table 1
Table 2
As an example it is assumed that the current operational mode of air-conditioning is heating mode, current time indoor temperature and design temperature
Temperature difference, indoor temperature change generated in case rate conversion value on domain be respectively 1.5, -2, inquiry table 1, it is known that corresponding target wind
Speed is H, i.e. top gear.
By taking table 1 as an example, the data in analytical table 1 during the temperature difference Δ T=0.5 of indoor temperature and design temperature are understood, with
The increase of indoor temperature change generated in case rate, corresponding wind speed are followed successively by:H → M → M → L → L, i.e. being incremented by with indoor temperature change generated in case rate,
Corresponding wind speed is in gradually reduction trend.As previously described, because the gear of indoor fan only has high, medium and low third gear, therefore can not
Its wind speed is made linearly to reduce with the increase of indoor temperature change generated in case rate, thus is present with special circumstances：When σ=- 0.5 and σ=0, wind
Speed is M, and when σ=0.5 and σ >=1, wind speed is L.
Further, the data in analytical table 1 during the temperature difference Δ T=0 of indoor temperature and design temperature, in σ≤- 1,
Corresponding wind speed is middle-grade wind speed；In σ >=1, corresponding wind speed is not 0, but low-grade wind speed.That is, when indoor load is heavier
When, even if indoor temperature differs smaller with design temperature at this time, corresponding wind speed also should be higher；And when indoor load is lighter,
Even if indoor temperature differs smaller with design temperature at this time, corresponding wind speed also not should be zero, but a relatively low wind speed.
It should be noted that the rule list shown in table 1, table 2 is only specific example provided in an embodiment of the present invention, not
Form limitation of the invention.
In another realization method of the embodiment of the present invention, air-conditioning draught fan control device obtains indoor temperature and design temperature
Temperature difference, can specifically include：
Obtain design temperature and the indoor temperature at current detection moment, and according to the indoor temperature at current detection moment, set
Constant temperature degree obtains the temperature difference according to the first preset formula as shown in formula (1).
Then, preset rules can also include：
If the operational mode of fixed frequency air conditioner is heating mode, when temperature difference is more than the first preset value, the wind speed of indoor fan
For highest wind velocity, when temperature difference is less than the second preset value, the wind speed of indoor fan is minimum wind speed；If the operation mould of fixed frequency air conditioner
Formula is refrigeration mode, and when temperature difference is more than the first preset value, the wind speed of indoor fan is minimum wind speed, and it is pre- that temperature difference is less than second
If during value, the wind speed of indoor fan is highest wind velocity.
That is, when air-conditioning in a heating mode, indoor temperature be far below design temperature when, control indoor fan with highest mesh
Wind speed operating is marked, to promote air-conditioning fan-out capability, indoor temperature is made to rapidly increase to design temperature；And indoor temperature is far high
When design temperature, control indoor fan is operated with minimum target wind speed, to reduce air conditioning energy consumption.When air-conditioning is in refrigeration mode
Under, when indoor temperature is far above design temperature, control indoor fan is operated with highest target wind speed, to promote air-conditioning output energy
Power makes indoor temperature drop quickly to design temperature；And indoor temperature be far below design temperature when, control indoor fan with
Minimum target wind speed operating, to reduce air conditioning energy consumption.
Then, in a kind of possible realization method, air-conditioning draught fan control device is pressed according to temperature difference and indoor temperature change generated in case rate
According to preset rules, the indoor fan of fixed frequency air conditioner is controlled to operate, can specifically be included：
Air-conditioning draught fan control device quantifies temperature difference and indoor temperature change generated in case rate, obtains temperature difference on corresponding domain
With the conversion value of indoor temperature change generated in case rate；
Air-conditioning draught fan control device determines the operational mode of fixed frequency air conditioner, if the operational mode of fixed frequency air conditioner is heating mould
Formula according to the conversion value of temperature difference and the conversion value of indoor temperature change generated in case rate, inquires about the three sigma rule table to prestore and obtains target wind
Speed, control indoor fan are operated with target wind speed；If the operational mode of fixed frequency air conditioner is refrigeration mode, according to the conversion of temperature difference
The conversion value of value and indoor temperature change generated in case rate inquires about the 4th rule list to prestore and obtains target wind speed, and control indoor fan is with mesh
Mark wind speed operating.
Wherein, three sigma rule table is fixed frequency air conditioner temperature difference and indoor temperature change generated in case rate and indoor fan in a heating mode
Wind speed correspondence, the 4th rule list for fixed frequency air conditioner in cooling mode temperature difference and indoor temperature change generated in case rate with it is indoor
The correspondence of the wind speed of wind turbine, and three sigma rule table and the 4th rule list are to be obtained previously according to preset rules by many experiments
.
In alternatively possible realization method, air-conditioning draught fan control device is according to temperature difference and indoor temperature in a detection
Variable quantity in cycle according to preset rules, controls the indoor fan of fixed frequency air conditioner to operate, can specifically include：
Air-conditioning draught fan control device quantifies the variable quantity of temperature difference and indoor temperature in a detection cycle, obtains
Obtain the conversion value of the variable quantity of temperature difference and indoor temperature in a detection cycle on corresponding domain；
Air-conditioning draught fan control device determines the operational mode of fixed frequency air conditioner, if the operational mode of air-conditioning is heating mode, root
According to the conversion value of variable quantity of the conversion value and indoor temperature of temperature difference in a detection cycle, the 5th rule to prestore is inquired about
Table obtains target wind speed, and control indoor fan is operated with target wind speed；If the operational mode of fixed frequency air conditioner is refrigeration mode, according to
The conversion value of variable quantity of the conversion value and indoor temperature of temperature difference in a detection cycle, inquires about the 6th rule list to prestore
Target wind speed is obtained, control indoor fan is operated with target wind speed.
Wherein, the 5th rule list for fixed frequency air conditioner in a heating mode temperature difference and indoor temperature in a detection cycle
Variable quantity and indoor fan wind speed correspondence, the 6th rule list is fixed frequency air conditioner temperature difference and room in cooling mode
The correspondence of the wind speed of variable quantity and indoor fan of the interior temperature in a detection cycle, and the 5th rule list and the 6th rule
Then table is what is obtained previously according to preset rules by many experiments.
Preferably, as shown in Fig. 2 (a) and 2 (b), air-conditioning draught fan control method provided in an embodiment of the present invention can also wrap
It includes：
It is empty after S104, indoors temperature and the temperature difference of design temperature are more than the 3rd preset value and are less than the 4th preset value
Fan controller is adjusted to detect indoor temperature according to default second detection cycle.
If the temperature difference of S105, indoor temperature and design temperature are less than the 3rd preset value, air-conditioning draught fan control device reduces
The wind speed of indoor fan；If indoor temperature and the temperature difference of design temperature are more than the 4th preset value, air-conditioning draught fan control device increases
The wind speed of big indoor fan；Otherwise, air-conditioning draught fan control device keeps the wind speed of indoor fan constant.
Wherein, it is necessary to which explanation, the 3rd preset value and the 4th preset value can specifically be carried out according to the temperature-controlled precision of air-conditioning
It sets, for example, it is assumed that the temperature-controlled precision of air-conditioning is ± 0.5 DEG C, then the 3rd preset value could be provided as -0.5 DEG C, the 4th preset value
It could be provided as 0.5 DEG C.It is appreciated that if indoor temperature and the temperature difference of design temperature are more than the 3rd preset value and less than the
Four preset values (in the section that i.e. temperature difference of indoor temperature and design temperature is formed in the 3rd preset value and the 4th preset value),
Think that indoor temperature has reached design temperature at this time.
Specifically, be not continuously adjustable indoor fan for wind speed, the wind speed of reduction/increase indoor fan specifically can be with
It is that the wind speed of indoor fan is reduced/increased one grade；And be continuously adjustable indoor fan for wind speed, such as PG motors, wind speed
The variable quantity of Primary regulation can be specifically the 1/m (m be integer, m >=1) of difference between adjacent two grades of wind speed, the embodiment of the present invention
This is not especially limited.
It should be noted that air-conditioning draught fan control method provided in an embodiment of the present invention can first carry out step S101-
S103a/ step S101-S103b are repeating step S101-S103a/ steps several cycles of S101-S103b by interior
Temperature is adjusted to after design temperature, then performs step S104-S105；Also it can first detect whether current indoor temperature reaches setting temperature
Degree, if reaching design temperature performs step S105, if not up to design temperature performs step S101-S103a/ steps
S101-S103b.That is, in air-conditioning draught fan control method provided in an embodiment of the present invention, step S104-S105 and step S101-
, can be shown according to Fig. 2 (a) and 2 (b) there is no stringent execution sequence between S103a/ steps S101-S103b, in step
Step S104-S105 is performed after S101-S103a/ steps S101-S103b, it also can be in step S101-S103a/ steps S101-
Step S104-S105 is performed before S103b, the embodiment of the present invention is not especially limited this.
Further, as shown in Fig. 3 (a) and 3 (b), air-conditioning draught fan control method provided in an embodiment of the present invention can be with
Including：
S106, indoors temperature and the temperature difference of design temperature continuous n detection moment be all higher than the 3rd preset value and
After the 5th preset value, air-conditioning draught fan control device reduces the wind speed of indoor fan.
Alternatively,
The temperature difference of S107, indoor temperature and design temperature are all higher than the 5th preset value and small in continuous n detection moment
After the 4th preset value, air-conditioning draught fan control device increases the wind speed of indoor fan.
Wherein, the 5th preset value is less than the 4th preset value and more than the 3rd preset value, and n is integer, n >=2.
That is, after indoor temperature is adjusted to user's design temperature, to the temperature difference of indoor temperature and user's design temperature
It is monitored, if follow-up continuous n moment indoor temperature and the temperature difference of design temperature are [the 3rd preset value, the 5th presets
Value] section, then reduce the wind speed of indoor fan；If follow-up continuous n moment indoor temperature and the temperature difference of design temperature exist
[the 5th preset value, the 4th preset value] section then increases the wind speed of indoor fan.As it can be seen that air-conditioning provided in an embodiment of the present invention
Blower control method can improve the temperature-controlled precision of air-conditioning by setting the 5th preset value.
With upper similar, between step S104-S106/S107 and step S101-S103a/ steps S101-S103b not
Stringent execution sequence can be performed according to shown in Fig. 3 (a) and 3 (b) after step S101-S103a/ steps S101-S103b
Step S104-S106/S107 can also perform step S104-S106/ before step S101-S103a/ steps S101-S103b
S107, the embodiment of the present invention are not especially limited this.
In the prior art, the control of outdoor fan of air-conditioner depends on outdoor environment temperature, specifically, by by outdoor ring
The excursion of border temperature is divided into several sections, and each section corresponds to specific wind speed, and periodically sensing chamber's outer shroud
Border temperature determines corresponding wind speed according to outdoor environment temperature, and then the wind speed of outdoor fan is adjusted.Due to existing skill
Art is adjusted the wind speed of outdoor fan only according to outdoor environment temperature, and does not consider indoor truth, because
This is present with the unmatched problem of indoor and outdoor exchange capability of heat, brings unnecessary energy consumption, and air-conditioning Energy Efficiency Ratio is caused to decline.
Further, as shown in Fig. 4 (a), to improve air-conditioning Energy Efficiency Ratio, air-conditioning draught fan control provided in an embodiment of the present invention
Method processed can also include：
S108a, air-conditioning draught fan control device adjust the wind of the outdoor fan of fixed frequency air conditioner according to indoor temperature change generated in case rate
Speed, so that the wind speed of outdoor fan reduces with the increase of indoor temperature change generated in case rate.
That is, when indoor temperature change generated in case rate is smaller, i.e., when indoor load is heavier, control outdoor fan is transported with higher wind speed
Turn；When indoor temperature change generated in case rate is larger, i.e., when indoor load is lighter, control outdoor fan is operated with relatively low wind speed.In this way,
While indoor fan is controlled according to indoor temperature change generated in case rate, outdoor fan wind speed is controlled according to indoor temperature change generated in case rate, i.e.,
It can make indoor and outdoor wind turbine and all operated with relatively low wind speed, when load is heavier indoors, make indoor and outdoor when load is lighter indoors
Wind turbine is all operated with higher wind speed, so that indoor and outdoor wind turbine wind speed matches, and then ensures indoor and outdoor exchange capability of heat phase
Match somebody with somebody, avoid unnecessary energy consumption, improve air-conditioning Energy Efficiency Ratio.
Similar, if selecting indoor temperature in the variable quantity of a detection cycle as controlled quentity controlled variable, such as Fig. 4 (b) is shown,
Air-conditioning draught fan control method provided in an embodiment of the present invention can also include：
S108b, air-conditioning draught fan control device are according to indoor temperature in the variable quantity of a detection cycle, adjustment fixed frequency air conditioner
Outdoor fan wind speed so that the wind speed of outdoor fan subtracts with indoor temperature in the increase of the variable quantity of a detection cycle
It is small.
In the prior art, using indoor temperature and the temperature difference of user's design temperature as unique controlled quentity controlled variable, to air-conditioning draught fan
Wind speed carry out coarse adjustment, without considering current indoor load, therefore the fan-out capability and indoor load of air-conditioning can be caused
It is inconsistent so that design temperature is not achieved in indoor temperature when load is heavier indoors, and compressor is anti-when load is lighter indoors
Multiple start and stop.And air-conditioning draught fan control method provided in an embodiment of the present invention, unlike the prior art, no longer according only to Indoor Temperature
It spends and indoor fan is adjusted with the temperature difference of user's design temperature, but in the temperature difference for considering indoor temperature and design temperature
While value, the variation of another parameter-indoor temperature change generated in case rate or indoor temperature in a detection cycle is also introduced
Amount, since the parameter can reflect air-conditioning fan-out capability and indoor load relativeness, sky provided in an embodiment of the present invention
Adjust blower control method according to the temperature difference and indoor temperature change generated in case rate or indoor temperature of indoor temperature and design temperature one
Variable quantity in a detection cycle, according to preset rules control indoor fan operating, you can air-conditioning fan-out capability is made to be born with interior
Lotus is consistent, and indoor temperature can reach design temperature during so as to ensure that load is heavier indoors, when load is lighter indoors
The number of start/stop of compressor machine can be reduced.Specifically, when temperature difference is in preset threshold range, certain in temperature difference
In the case of, control variable quantity of the wind speed of indoor fan with indoor temperature change generated in case rate/indoor temperature in a detection cycle
It is incremented by and reduces, i.e. when variable quantity of the rate of temperature change/indoor temperature in a detection cycle is larger indoors, i.e. air-conditioning
When the degree that the energy of generation causes indoor environment temperature to change is larger, control indoor fan is operated with relatively low wind speed, in room
When the variable quantity of interior rate of temperature change or indoor temperature in a detection cycle is smaller, i.e., the energy that air-conditioning generates causes interior
When the degree of variation of ambient temperature is smaller, control indoor fan is operated with higher wind speed.Thus, you can export air-conditioning
Ability is consistent with indoor load, and indoor temperature can reach design temperature during so as to ensure that load is heavier indoors, in room
Internal loading can reduce the number of start/stop of compressor machine when lighter.
That is, the air-conditioning draught fan control method that the embodiment of the present invention provides can solve existing air-conditioning draught fan control method
The problem of existing air-conditioning fan-out capability and inconsistent indoor load, when load is heavier indoors, it is ensured that indoor temperature can
Reach design temperature, when load is lighter indoors, the number of start/stop of compressor machine can be reduced.
Embodiment two,
The embodiment of the present invention provides a kind of air-conditioning draught fan control device 50, applied to fixed frequency air conditioner, it is specific as shown in figure 5,
Including：Detection unit 501, acquiring unit 502 and control unit 503.
Wherein, detection unit 501, for detecting indoor temperature according to default first detection cycle；
Acquiring unit 502, at the current detection moment, obtaining indoor temperature and the temperature difference and Indoor Temperature of design temperature
Change rate is spent, alternatively, the variation of acquisition indoor temperature and the temperature difference and indoor temperature of design temperature in a detection cycle
Amount, indoor temperature change generated in case rate represent variation degree of the indoor temperature in a detection cycle；
Control unit 503, for according to temperature difference and indoor temperature change generated in case rate, alternatively, according to temperature difference and indoor temperature
Variable quantity in a detection cycle according to preset rules, controls the indoor fan of fixed frequency air conditioner to operate.
Wherein, preset rules include：When temperature difference is in preset threshold range, in the case where temperature difference is certain, room
Being incremented by for variable quantity of the wind speed of inner blower with indoor temperature change generated in case rate/indoor temperature in a detection cycle becomes in reduction
Gesture.
In a kind of realization method of the embodiment of the present invention, acquiring unit 502 specifically can be used for：
It determines the operational mode of fixed frequency air conditioner, and obtains the indoor temperature at design temperature and current detection moment；
If the operational mode of fixed frequency air conditioner is heating mode, according to the indoor temperature at current detection moment, design temperature, root
Temperature difference is obtained according to the first preset formula；
If the operational mode of fixed frequency air conditioner is refrigeration mode, according to the indoor temperature at current detection moment, design temperature, root
Temperature difference is obtained according to the second preset formula.
Wherein, shown in the first preset formula such as formula (1), shown in the second preset formula such as formula (2).
Then, preset rules can also include：
When temperature difference is more than the first preset value, the wind speed of indoor fan is highest wind velocity；Temperature difference is less than the second preset value
When, the wind speed of indoor fan is minimum wind speed.
In another realization method of the embodiment of the present invention, acquiring unit 502 specifically can be used for：
Obtain design temperature and the indoor temperature at current detection moment, and according to the indoor temperature at current detection moment, set
Constant temperature degree obtains temperature difference according to the first preset formula.
Then, preset rules can also include：
If the operational mode of fixed frequency air conditioner is heating mode, when temperature difference is more than the first preset value, the wind speed of indoor fan
For highest wind velocity, when temperature difference is less than the second preset value, the wind speed of indoor fan is minimum wind speed；
If the operational mode of fixed frequency air conditioner is refrigeration mode, when temperature difference is more than the first preset value, the wind speed of indoor fan
For minimum wind speed, when temperature difference is less than the second preset value, the wind speed of indoor fan is highest wind velocity.
Specifically, in air-conditioning draught fan control device 50 provided in an embodiment of the present invention, acquiring unit 502 can specifically be used
In：
The indoor temperature of previous detection moment is obtained, and according to the room of default first detection cycle, previous detection moment
Interior temperature and the indoor temperature at current detection moment with reference to the 3rd preset formula, calculate indoor rate of temperature change.
Wherein, shown in the 3rd preset formula such as formula (3).
Preferably, in air-conditioning draught fan control device 50 provided in an embodiment of the present invention, detection unit 501 can be also used for：
After indoor temperature and the temperature difference of design temperature are more than the 3rd preset value and are less than the 4th preset value, according to default
The second detection cycle detection indoor temperature.
Control unit 503 can be also used for：
If indoor temperature and the temperature difference of design temperature are less than the 3rd preset value, reduce the wind speed of indoor fan；It is if indoor
Temperature and the temperature difference of design temperature are more than the 4th preset value, increase the wind speed of indoor fan；Otherwise, the wind of indoor fan is kept
Speed is constant.
Further, control unit 503 can be also used for：
Indoor temperature and the temperature difference of design temperature are all higher than the 3rd preset value and less than the in continuous n detection moment
After five preset values, reduce the wind speed of indoor fan；Alternatively,
Indoor temperature and the temperature difference of design temperature are all higher than the 5th preset value and less than the in continuous n detection moment
After four preset values, increase the wind speed of indoor fan.
Wherein, the 5th preset value is less than the 4th preset value and more than the 3rd preset value, and n is integer, n >=2.
Further, as shown in fig. 6, air-conditioning draught fan control device 50 provided in an embodiment of the present invention can also include adjusting
Whole unit 504.
Adjustment unit 504 is used for：
According to indoor temperature change generated in case rate, adjust the wind speed of the outdoor fan of fixed frequency air conditioner so that the wind speed of outdoor fan with
The increase of indoor temperature change generated in case rate and reduce；Alternatively,
According to variable quantity of the indoor temperature in a detection cycle, the wind speed of the outdoor fan of fixed frequency air conditioner is adjusted, with
Make the increase of variable quantity of the wind speed of outdoor fan with indoor temperature in a detection cycle and reduce.
In the prior art, using indoor temperature and the temperature difference of user's design temperature as unique controlled quentity controlled variable, to air-conditioning draught fan
Wind speed carry out coarse adjustment, without considering current indoor load, therefore the fan-out capability and indoor load of air-conditioning can be caused
It is inconsistent so that design temperature is not achieved in indoor temperature when load is heavier indoors, and compressor is anti-when load is lighter indoors
Multiple start and stop.And air-conditioning draught fan control device provided in an embodiment of the present invention, unlike the prior art, no longer according only to Indoor Temperature
It spends and indoor fan is adjusted with the temperature difference of user's design temperature, but in the temperature difference for considering indoor temperature and design temperature
While value, the variation of another parameter-indoor temperature change generated in case rate or indoor temperature in a detection cycle is also introduced
Amount, since the parameter can reflect air-conditioning fan-out capability and indoor load relativeness, sky provided in an embodiment of the present invention
Adjust fan controller according to the temperature difference and indoor temperature change generated in case rate or indoor temperature of indoor temperature and design temperature one
Variable quantity in a detection cycle, according to preset rules control indoor fan operating, you can air-conditioning fan-out capability is made to be born with interior
Lotus is consistent, and indoor temperature can reach design temperature during so as to ensure that load is heavier indoors, when load is lighter indoors
The number of start/stop of compressor machine can be reduced.Specifically, when temperature difference is in preset threshold range, certain in temperature difference
In the case of, control variable quantity of the wind speed of indoor fan with indoor temperature change generated in case rate/indoor temperature in a detection cycle
It is incremented by and reduces, i.e. when variable quantity of the rate of temperature change/indoor temperature in a detection cycle is larger indoors, i.e. air-conditioning
When the degree that the energy of generation causes indoor environment temperature to change is larger, control indoor fan is operated with relatively low wind speed, in room
When the variable quantity of interior rate of temperature change or indoor temperature in a detection cycle is smaller, i.e., the energy that air-conditioning generates causes interior
When the degree of variation of ambient temperature is smaller, control indoor fan is operated with higher wind speed.Thus, you can export air-conditioning
Ability is consistent with indoor load, and indoor temperature can reach design temperature during so as to ensure that load is heavier indoors, in room
Internal loading can reduce the number of start/stop of compressor machine when lighter.
That is, the air-conditioning draught fan control device that the embodiment of the present invention provides can solve existing air-conditioning draught fan control method
The problem of existing air-conditioning fan-out capability and inconsistent indoor load, when load is heavier indoors, it is ensured that indoor temperature can
Reach design temperature, when load is lighter indoors, the number of start/stop of compressor machine can be reduced.
It is apparent to those skilled in the art that for convenience and simplicity of description, the device of foregoing description,
It, can be as needed and by above-mentioned function distribution only with the division progress of above-mentioned each function module for example, in practical application
It is completed by different function modules, i.e., the internal structure of device is divided into different function modules, it is described above to complete
All or part of function.The specific work process of the system of foregoing description, device and unit may be referred to preceding method implementation
Corresponding process in example, details are not described herein.
In several embodiments provided herein, it should be understood that disclosed system, apparatus and method can be with
It realizes by another way.For example, the apparatus embodiments described above are merely exemplary, for example, the module or
The division of unit is only a kind of division of logic function, can there is other dividing mode, such as multiple units in actual implementation
Or component may be combined or can be integrated into another system or some features can be ignored or does not perform.It is another, institute
Display or the mutual coupling, direct-coupling or communication connection discussed can be by some interfaces, device or unit
INDIRECT COUPLING or communication connection can be electrical, machinery or other forms.
The unit illustrated as separating component may or may not be physically separate, be shown as unit
The component shown may or may not be physical location, you can be located at a place or can also be distributed to multiple
In network element.Some or all of unit therein can be selected to realize the mesh of this embodiment scheme according to the actual needs
's.
In addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, it can also
That unit is individually physically present, can also two or more units integrate in a unit.Above-mentioned integrated list
The form that hardware had both may be employed in member is realized, can also be realized in the form of SFU software functional unit.
If the integrated unit is realized in the form of SFU software functional unit and is independent production marketing or use
When, it can be stored in a computer read/write memory medium.Based on such understanding, technical scheme is substantially
The part to contribute in other words to the prior art or all or part of the technical solution can be in the form of software products
It embodies, which is stored in a storage medium, is used including some instructions so that a computer
It is each that equipment (can be personal computer, server or the network equipment etc.) or processor (processor) perform the present invention
The all or part of step of embodiment the method.And foregoing storage medium includes：USB flash disk, mobile hard disk, read-only memory
(ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic disc or CD
Etc. the various media that can store program code.
The above description is merely a specific embodiment, but protection scope of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can readily occur in change or replacement, should all contain
Lid is within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.
Claims (14)
1. a kind of air-conditioning draught fan control method, applied to fixed frequency air conditioner, which is characterized in that the described method includes：
Indoor temperature is detected according to default first detection cycle；
At the current detection moment, indoor temperature and the temperature difference of design temperature and indoor temperature change generated in case rate are obtained, alternatively, obtaining room
Variable quantity of the temperature difference and indoor temperature of interior temperature and design temperature in a detection cycle, the indoor temperature change generated in case rate
Represent variation degree of the indoor temperature in a detection cycle；
According to the temperature difference and the indoor temperature change generated in case rate, alternatively, according to the temperature difference and the indoor temperature one
Variable quantity in a detection cycle according to preset rules, controls the indoor fan of the fixed frequency air conditioner to operate；Wherein, it is described pre-
If rule includes：When the temperature difference is in preset threshold range, in the case where the temperature difference is certain, the interior wind
Variable quantity of the wind speed of machine with the indoor temperature change generated in case rate/indoor temperature in a detection cycle is incremented by reduction
Trend.
2. according to the method described in claim 1, it is characterized in that, the temperature difference for obtaining indoor temperature and design temperature,
Including：
It determines the operational mode of the fixed frequency air conditioner, and obtains the indoor temperature at design temperature and current detection moment；
If the operational mode of the fixed frequency air conditioner is heating mode, according to the indoor temperature at the current detection moment, described set
Constant temperature degree obtains the temperature difference according to the first preset formula, and first preset formula is：
Δ T=Ts-Tai,
If the operational mode of the fixed frequency air conditioner is refrigeration mode, according to the indoor temperature at the current detection moment, described set
Constant temperature degree obtains the temperature difference according to the second preset formula, and second preset formula is：
Δ T=Tai- Ts,
Wherein, Δ T represents temperature difference, and Ts represents design temperature, TaiRepresent the indoor temperature at current detection moment；
The preset rules further include：
When the temperature difference is more than the first preset value, the wind speed of the indoor fan is highest wind velocity；The temperature difference is less than the
During two preset values, the wind speed of the indoor fan is minimum wind speed.
3. according to the method described in claim 1, it is characterized in that, the temperature difference for obtaining indoor temperature and design temperature,
Including：
Design temperature and the indoor temperature at current detection moment are obtained, and according to the indoor temperature at the current detection moment, institute
Design temperature is stated, the temperature difference is obtained according to the first preset formula, first preset formula is：
Δ T=Ts-Tai,
Wherein, Δ T represents temperature difference, and Ts represents design temperature, TaiRepresent the indoor temperature at current detection moment；
The preset rules further include：
If the operational mode of the fixed frequency air conditioner is heating mode, when the temperature difference is more than the first preset value, the interior wind
The wind speed of machine is highest wind velocity, and when the temperature difference is less than the second preset value, the wind speed of the indoor fan is minimum wind speed；
If the operational mode of the fixed frequency air conditioner is refrigeration mode, when the temperature difference is more than first preset value, the room
The wind speed of inner blower is minimum wind speed, and when the temperature difference is less than the second preset value, the wind speed of the indoor fan is highest wind
Speed.
4. according to claim 1-3 any one of them methods, which is characterized in that the acquisition indoor temperature change generated in case rate includes：
The indoor temperature of previous detection moment is obtained, and according to the room of default first detection cycle, the previous detection moment
Interior temperature and the indoor temperature at the current detection moment with reference to the 3rd preset formula, calculate the indoor temperature change generated in case rate,
3rd preset formula is：
<mrow>
<mi>&sigma;</mi>
<mo>=</mo>
<mfrac>
<mrow>
<msub>
<mi>Ta</mi>
<mi>i</mi>
</msub>
<mo>-</mo>
<msub>
<mi>Ta</mi>
<mrow>
<mi>i</mi>
<mo>-</mo>
<mn>1</mn>
</mrow>
</msub>
</mrow>
<mi>T</mi>
</mfrac>
<mo>,</mo>
</mrow>
Wherein, σ represents indoor temperature change generated in case rate, TaiRepresent the indoor temperature at current detection moment, Tai-1When representing previous detection
The indoor temperature at quarter, T represent the first detection cycle.
5. according to the method described in claim 1, it is characterized in that, the method further includes：
After indoor temperature and the temperature difference of the design temperature are more than the 3rd preset value and are less than the 4th preset value, according to default
The second detection cycle detection indoor temperature；
If indoor temperature and the temperature difference of the design temperature are less than the 3rd preset value, reduce the wind of the indoor fan
Speed；If indoor temperature and the temperature difference of the design temperature are more than the 4th preset value, increase the wind speed of the indoor fan；
Otherwise, the wind speed for keeping the indoor fan is constant.
6. according to the method described in claim 5, it is characterized in that, the method further includes：
The temperature difference of indoor temperature and the design temperature is all higher than the 3rd preset value and small in continuous n detection moment
After the 5th preset value, reduce the wind speed of the indoor fan；Alternatively,
The temperature difference of indoor temperature and the design temperature is all higher than the 5th preset value and small in continuous n detection moment
After the 4th preset value, increase the wind speed of the indoor fan；Wherein, it is default to be less than the described 4th for the 5th preset value
Value and more than the 3rd preset value, n are integer, n >=2.
7. according to the method described in claim 1, it is characterized in that, the method further includes：
According to the indoor temperature change generated in case rate, the wind speed of the outdoor fan of the fixed frequency air conditioner is adjusted, so that the outdoor fan
Wind speed reduce with the increase of the indoor temperature change generated in case rate；Alternatively,
According to variable quantity of the indoor temperature in a detection cycle, the wind of the outdoor fan of the fixed frequency air conditioner is adjusted
Speed so that the increase of variable quantity of the wind speed of the outdoor fan with the indoor temperature in a detection cycle and reduce.
8. a kind of air-conditioning draught fan control device, applied to fixed frequency air conditioner, which is characterized in that described device includes：Detection unit obtains
Take unit and control unit；
The detection unit, for detecting indoor temperature according to default first detection cycle；
The acquiring unit, at the current detection moment, obtaining indoor temperature and the temperature difference and indoor temperature of design temperature
Change rate, alternatively, the variable quantity of acquisition indoor temperature and the temperature difference and indoor temperature of design temperature in a detection cycle,
The indoor temperature change generated in case rate represents variation degree of the indoor temperature in a detection cycle；
Described control unit, for according to the temperature difference and the indoor temperature change generated in case rate, alternatively, according to the temperature difference and
Variable quantity of the indoor temperature in a detection cycle according to preset rules, controls the indoor fan of the fixed frequency air conditioner
Operating；Wherein, the preset rules include：When the temperature difference is in preset threshold range, certain in the temperature difference
In the case of, the wind speed of the indoor fan is with the indoor temperature change generated in case rate/indoor temperature in a detection cycle
Variable quantity is in incrementally reduction trend.
9. device according to claim 8, which is characterized in that the acquiring unit is specifically used for：
It determines the operational mode of the fixed frequency air conditioner, and obtains the indoor temperature at design temperature and current detection moment；
If the operational mode of the fixed frequency air conditioner is heating mode, according to the indoor temperature at the current detection moment, described set
Constant temperature degree obtains the temperature difference according to the first preset formula, and first preset formula is：
Δ T=Ts-Tai,
If the operational mode of the fixed frequency air conditioner is refrigeration mode, according to the indoor temperature at the current detection moment, described set
Constant temperature degree obtains the temperature difference according to the second preset formula, and second preset formula is：
Δ T=Tai- Ts,
Wherein, Δ T represents temperature difference, and Ts represents design temperature, TaiRepresent the indoor temperature at current detection moment；
The preset rules further include：
When the temperature difference is more than the first preset value, the wind speed of the indoor fan is highest wind velocity；The temperature difference is less than the
During two preset values, the wind speed of the indoor fan is minimum wind speed.
10. device according to claim 8, which is characterized in that the acquiring unit is specifically used for：
Design temperature and the indoor temperature at current detection moment are obtained, and according to the indoor temperature at the current detection moment, institute
Design temperature is stated, the temperature difference is obtained according to the first preset formula, first preset formula is：
Δ T=Ts-Tai；
Wherein, Δ T represents temperature difference, and Ts represents design temperature, TaiRepresent the indoor temperature at current detection moment；
The preset rules further include：
If the operational mode of the fixed frequency air conditioner is heating mode, when the temperature difference is more than the first preset value, the interior wind
The wind speed of machine is highest wind velocity, and when the temperature difference is less than the second preset value, the wind speed of the indoor fan is minimum wind speed；
If the operational mode of the fixed frequency air conditioner is refrigeration mode, when the temperature difference is more than first preset value, the room
The wind speed of inner blower is minimum wind speed, and when the temperature difference is less than the second preset value, the wind speed of the indoor fan is highest wind
Speed.
11. according to claim 8-10 any one of them devices, which is characterized in that the acquiring unit is specifically used for：
The indoor temperature of previous detection moment is obtained, and according to the room of default first detection cycle, the previous detection moment
Interior temperature and the indoor temperature at the current detection moment with reference to the 3rd preset formula, calculate the indoor temperature change generated in case rate,
3rd preset formula is：
<mrow>
<mi>&sigma;</mi>
<mo>=</mo>
<mfrac>
<mrow>
<msub>
<mi>Ta</mi>
<mi>i</mi>
</msub>
<mo>-</mo>
<msub>
<mi>Ta</mi>
<mrow>
<mi>i</mi>
<mo>-</mo>
<mn>1</mn>
</mrow>
</msub>
</mrow>
<mi>T</mi>
</mfrac>
<mo>,</mo>
</mrow>
Wherein, σ represents indoor temperature change generated in case rate, TaiRepresent the indoor temperature at current detection moment, Tai-1When representing previous detection
The indoor temperature at quarter, T represent the first detection cycle.
12. device according to claim 8, which is characterized in that the detection unit is additionally operable to：
After indoor temperature and the temperature difference of the design temperature are more than the 3rd preset value and are less than the 4th preset value, according to default
The second detection cycle detection indoor temperature；
Described control unit is additionally operable to：
If indoor temperature and the temperature difference of the design temperature are less than the 3rd preset value, reduce the wind of the indoor fan
Speed；If indoor temperature and the temperature difference of the design temperature are more than the 4th preset value, increase the wind speed of the indoor fan；
Otherwise, the wind speed for keeping the indoor fan is constant.
13. device according to claim 12, which is characterized in that described control unit is additionally operable to：
The temperature difference of indoor temperature and the design temperature is all higher than the 3rd preset value and small in continuous n detection moment
After the 5th preset value, reduce the wind speed of the indoor fan；Alternatively,
The temperature difference of indoor temperature and the design temperature is all higher than the 5th preset value and small in continuous n detection moment
After the 4th preset value, increase the wind speed of the indoor fan；Wherein, it is default to be less than the described 4th for the 5th preset value
Value and more than the 3rd preset value, n are integer, n >=2.
14. device according to claim 8, which is characterized in that described device further includes：Adjustment unit；
The adjustment unit is used for：
According to the indoor temperature change generated in case rate, the wind speed of the outdoor fan of the fixed frequency air conditioner is adjusted, so that the outdoor fan
Wind speed reduce with the increase of the indoor temperature change generated in case rate；Alternatively,
According to variable quantity of the indoor temperature in a detection cycle, the wind of the outdoor fan of the fixed frequency air conditioner is adjusted
Speed so that the increase of variable quantity of the wind speed of the outdoor fan with the indoor temperature in a detection cycle and reduce.
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| CN201510641300.2A CN105588272B (en) | 2015-09-29 | 2015-09-29 | A kind of air-conditioning draught fan control method and device |
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| CN201510641300.2A CN105588272B (en) | 2015-09-29 | 2015-09-29 | A kind of air-conditioning draught fan control method and device |
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