CN107514754A - The control method and device of air-conditioning system and its indoor fan - Google Patents
The control method and device of air-conditioning system and its indoor fan Download PDFInfo
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- CN107514754A CN107514754A CN201710752661.3A CN201710752661A CN107514754A CN 107514754 A CN107514754 A CN 107514754A CN 201710752661 A CN201710752661 A CN 201710752661A CN 107514754 A CN107514754 A CN 107514754A
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Abstract
The invention discloses a kind of air-conditioning system and its control method and device of indoor fan, the control method to comprise the following steps：When receiving the stopping signal of outdoor unit, control indoor fan delay operation；During the operation of blower fan delay indoors, the efficiency of current indoor machine is obtained every the first preset time；And judge whether to need to control indoor fan to shut down according to the efficiency of current indoor machine, so that there is optimal energy-saving effect during the operation of blower fan delay indoors of different air-conditioning systems.
Description
Technical field
The present invention relates to air-conditioning technical field, control method, one kind of indoor fan in more particularly to a kind of air-conditioning system
The control device of indoor fan and a kind of air-conditioning system in air-conditioning system.
Background technology
Generally after air-conditioning system receives the halt instruction of user, the compressor in the first control system of meeting is closed, and is being pressed
After contracting office closes, because system has remaining ability (including refrigerating capacity or heating capacity), so in order to make full use of this
A little remaining abilities, typically such as after 60 seconds indoor fan can be controlled to close in the delay set time.But for different air-conditioning systems
For system or the different service condition of same air-conditioning system, using the constant time lag time system can not be caused to obtain optimal section
Can effect.
The content of the invention
It is contemplated that at least solves one of technical problem in above-mentioned technology to a certain extent.
Therefore, first purpose of the present invention in a kind of control method of the indoor fan in air-conditioning system is proposed, passes through
Shutdown control is carried out to indoor fan according to the efficiency of the indoor set obtained in real time, so that different air-conditioning systems is indoors
There is optimal energy-saving effect during blower fan delay operation.
Second object of the present invention is to propose a kind of computer-readable recording medium.
Control device of the third object of the present invention in the indoor fan in a kind of air-conditioning system is proposed.
Fourth object of the present invention is to propose a kind of air-conditioning system.
To reach above-mentioned purpose, first aspect present invention embodiment proposes a kind of control of indoor fan in air-conditioning system
Method, the air-conditioning system include outdoor unit and indoor set, and the indoor set includes indoor fan, the control method include with
Lower step：When receiving the stopping signal of the outdoor unit, the indoor fan delay operation is controlled；In the indoor fan
During delay operation, the efficiency of presently described indoor set is obtained every the first preset time；And according to presently described room
The efficiency of interior machine judges whether to need to control the indoor fan to shut down.
The control method of indoor fan in air-conditioning system according to embodiments of the present invention, when the shutdown for receiving outdoor unit is believed
Number when, control indoor fan delay operation, and indoors blower fan delay operation during, every the first preset time obtain work as
The efficiency of preceding indoor set, and judge whether to need to control indoor fan to shut down according to the efficiency of current indoor machine.This method is led to
Cross and shutdown control is carried out to indoor fan according to the efficiency of the indoor set obtained in real time, so that different air-conditioning systems is in room
There is optimal energy-saving effect during inner blower delay operation.
In addition, the control method of indoor fan can also have in the air-conditioning system proposed according to the above embodiment of the present invention
Additional technical characteristic as follows：
According to one embodiment of present invention, the efficiency that presently described indoor set is obtained every the first preset time,
Including：Every the return air temperature of first preset time acquisition indoor set, the return air relative humidity of the indoor set, institute
State the power of motor and atmospheric pressure of the leaving air temp of indoor set, the wind shelves of the indoor fan, the indoor fan；According to
The return air temperature of the indoor set, the return air relative humidity of the indoor set and the atmospheric pressure obtain the specific heat of present air
Hold and density, and the wind of the indoor set is obtained according to the power of motor of the wind shelves of the indoor fan and the indoor fan
Amount；According to the specific heat capacity of the present air and density, the air quantity of the indoor set, the power of motor of the indoor fan, institute
The return air temperature of the leaving air temp and the indoor set of stating indoor set obtains the efficiency of presently described indoor set.
According to one embodiment of present invention, the efficiency of presently described indoor set is obtained by below equation：
Wherein, E be presently described indoor set efficiency, cpFor the specific heat capacity of the present air, ρ is the present air
Density, Q be the indoor set air quantity, T2For the leaving air temp of the indoor set, T1For the return air temperature of the indoor set, P
For the power of motor of the indoor fan.
According to one embodiment of present invention, the efficiency according to presently described indoor set judges whether to need to control institute
Indoor fan shutdown is stated, including：If the efficiency of presently described indoor set is more than or equal to the first default efficiency, the room is controlled
Inner blower continues to run with；If the efficiency of presently described indoor set is less than the described first default efficiency, the indoor wind is controlled
Machine is shut down.
To reach above-mentioned purpose, second aspect of the present invention embodiment proposes a kind of computer-readable recording medium, and it has
Instruction therein is stored in, when executed, the air-conditioning system performs the controlling party of above-mentioned indoor fan
Method.
The computer-readable recording medium of the embodiment of the present invention, by performing the control method of above-mentioned indoor fan, energy
Enough so that there is optimal energy-saving effect during the operation of blower fan delay indoors of different air-conditioning systems.
To reach above-mentioned purpose, third aspect present invention embodiment proposes a kind of control of indoor fan in air-conditioning system
Device, the air-conditioning system include outdoor unit and indoor set, and the indoor set includes indoor fan, and the control device includes：
Control module, for when receiving the stopping signal of the outdoor unit, controlling the indoor fan delay operation；First obtains
Module, for during indoor fan delay operation, presently described indoor set to be obtained every the first preset time
Efficiency；And the control module, it is additionally operable to judge whether to need to control the interior according to the efficiency of presently described indoor set
Fan parking.
The control device of indoor fan in air-conditioning system according to embodiments of the present invention, when the shutdown for receiving outdoor unit is believed
Number when, by control module control indoor fan delay operation, and indoors blower fan delay operation during, obtained by first
Modulus block obtains the efficiency of current indoor machine, and the energy by control module according to current indoor machine every the first preset time
Effect judges whether to need to control indoor fan to shut down.The efficiency for the indoor set that the device is obtained in real time by basis is to indoor fan
Shutdown control is carried out, so that there is optimal energy-saving effect during the operation of blower fan delay indoors of different air-conditioning systems.
In addition, the control device of indoor fan can also have such as in the air-conditioning system proposed according to the above embodiment of the present invention
Additional technical characteristic down：
According to one embodiment of present invention, first acquisition module includes：First acquisition submodule, for every institute
State the first preset time and obtain the return air temperature of the indoor set, the return air relative humidity of the indoor set, the indoor set
Leaving air temp, the wind shelves of the indoor fan, the power of motor and atmospheric pressure of the indoor fan；Second obtains submodule
Block, obtain and work as the return air temperature according to the indoor set, the return air relative humidity of the indoor set and the atmospheric pressure
The specific heat capacity and density of preceding air, and described in the power of motor acquisition of the wind shelves and the indoor fan according to the indoor fan
The air quantity of indoor set；3rd acquisition submodule, for the specific heat capacity according to the present air and density, the wind of the indoor set
The return air temperature of amount, the power of motor of the indoor fan, the leaving air temp of the indoor set and the indoor set obtains current
The efficiency of the indoor set.
According to one embodiment of present invention, the efficiency of presently described indoor set is obtained by below equation：
Wherein, E be presently described indoor set efficiency, cpFor the specific heat capacity of the present air, ρ is the present air
Density, Q be the indoor set air quantity, T2For the leaving air temp of the indoor set, T1For the return air temperature of the indoor set, P
For the power of motor of the indoor fan.
According to one embodiment of present invention, the control module judges whether need according to the efficiency of presently described indoor set
When controlling the indoor fan shutdown, wherein, if the efficiency of presently described indoor set is more than or equal to the first default efficiency, institute
Stating control module then controls the indoor fan to continue to run with；It is default that if the efficiency of presently described indoor set is less than described first
Efficiency, the control module then control the indoor fan to shut down.
To reach above-mentioned purpose, fourth aspect present invention embodiment proposes a kind of air-conditioning system, and it includes above-mentioned room
The control device of inner blower.
The air-conditioning system of the embodiment of the present invention, by the control device of above-mentioned indoor fan, enable to different skies
There is optimal energy-saving effect during the adjusting system operation of blower fan delay indoors.
Brief description of the drawings
Fig. 1 is the flow chart of the control method of indoor fan in air-conditioning system according to embodiments of the present invention；
Fig. 2 be in air-conditioning system compressor close before and after the change curve of refrigerating capacity and Energy Efficiency Ratio；
Fig. 3 is the flow chart of the control method of indoor fan in air-conditioning system according to an embodiment of the invention；
Fig. 4 is the air pressure characteristics curve map according to indoor fan in one embodiment of the invention air-conditioning system；
Fig. 5 is the flow chart of the control method of indoor fan in air-conditioning system in accordance with another embodiment of the present invention；
Fig. 6 is the block diagram of the control device of indoor fan in air-conditioning system according to embodiments of the present invention；And
Fig. 7 is the block diagram of the control device of indoor fan in air-conditioning system according to an embodiment of the invention.
Embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning to end
Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to for explaining the present invention, and is not considered as limiting the invention.
To describe in the air-conditioning system of the embodiment of the present invention, the control method of indoor fan, computer can below in conjunction with the accompanying drawings
Read the control device of indoor fan and the air-conditioning system with the control device in storage medium, air-conditioning system.
Fig. 1 is the flow chart of the control method of indoor fan in air-conditioning system according to embodiments of the present invention.In the present invention
Embodiment in, air-conditioning system includes outdoor unit and indoor set, and indoor set includes indoor fan.As shown in figure 1, the air-conditioning system
The control method of middle indoor fan comprises the following steps：
S1, when receiving the stopping signal of outdoor unit, control indoor fan delay operation.
S2, during the operation of blower fan delay indoors, the efficiency of current indoor machine is obtained every the first preset time.Its
In, the first preset time T can be demarcated according to actual conditions, for example, the first preset time T can be 5 seconds, if certainly
Faster reaction speed is sought, then can select the shorter time.
S3, judge whether to need to control indoor fan to shut down according to the efficiency of current indoor machine.
Specifically, Fig. 2 be in air-conditioning system compressor close before and after the change curve of refrigerating capacity and Energy Efficiency Ratio, from figure
2 as can be seen that after the compressor of air-conditioning system is closed, and system also has remaining ability (including refrigerating capacity/heating capacity), is
These remaining abilities are made full use of, indoor fan can time-delay closing.Indoors during the operation of blower fan time-delay closing, due to room
Outer machine has been switched off, and system consumption power is relatively low, but now system also has higher ability, and therefore, now system will have pole
High efficiency.But with the time lengthening of indoor fan time-delay closing, interior system energy efficiency can drastically decline during delay, so
Different air-conditioning systems all has an efficiency optimal indoor fan time-delay closing time.Due to different air-conditioning systems or
There is the different optimum delay time under the different running status of same air-conditioning system, controlled so working as using the constant time lag time
When indoor fan processed is closed, each air-conditioning system can not be caused to obtain optimal energy-saving effect.Therefore, the present invention's
In embodiment, indoors during the operation of blower fan time-delay closing, by obtaining the efficiency of current indoor machine in real time, then basis obtains
The efficiency taken carries out shutdown control to indoor fan, so that blower fan is delayed the runtime different air-conditioning systems indoors
Between there is optimal energy-saving effect.
According to one embodiment of present invention, as shown in figure 3, obtaining the efficiency of current indoor machine every the first preset time
Including：
S21, return air temperature, the return air relative humidity of indoor set, the indoor set of indoor set are obtained every the first preset time
Leaving air temp, wind shelves, the power of motor and atmospheric pressure of indoor fan of indoor fan.
Specifically, the return air temperature T of indoor set can be obtained by being disposed in the interior the Temperature Humidity Sensor at machine return air inlet1
With return air relative humidityThe leaving air temp T of indoor set is obtained by being disposed in the interior the temperature sensor at the air outlet of machine2；
The wind shelves D of indoor fan is obtained by detection blower fan wind latch device；The motor electricity of indoor fan is obtained by hardware detecting circuit
Current voltage (or rotating speed), and then according to the power of motor P of electric moter voltage electric current (or rotating speed) acquisition indoor fan；Passed by pressure
Sensor obtains atmospheric pressure B.
S22, present air is obtained according to the return air temperature of indoor set, the return air relative humidity of indoor set and atmospheric pressure
Specific heat capacity and density, and obtain according to the power of motor of the wind shelves of indoor fan and indoor fan the air quantity of indoor set.
Specifically, the return air temperature T of indoor set is being got1, the return air relative humidity of indoor setWith atmospheric pressure B
Afterwards, the steam partial pressure of present air can be first obtained according to following formula (1)：
Wherein, PQ, bFor steam partial pressure, T=T1+ 273.15, C8=-5.8002206 × 103, C9=1.3914993, C10
=-4.8640239 × 10-2, C11=4.1764768 × 10-5, C12=-1.4452093 × 10-8, C13=6.5459673.
Then, the steam partial pressure P of present air is being gotQ, bAfterwards, present air is obtained according to following formula (2)
Saturation water capacity：
Wherein, ds is saturation water capacity, and B is atmospheric pressure.
Further, after the saturation water capacity ds of present air is got, present air is obtained according to following formula (3)
Water capacity：
Wherein, d is water capacity,For the return air relative humidity of indoor set.
Finally, after the water capacity d of present air is got, the specific heat capacity of present air is obtained according to following formula (4),
And the density of present air is obtained according to following formula (5)：
cp=1005+1805d (4)
Wherein, specific heat capacity cp, density ρ, Rgda=287.
And the air quantity Q of indoor set can pass through indoor fan according to the wind shelves D of indoor fan, the power of motor P of indoor fan
Blast curve acquisition.Specifically, Fig. 4 is the air pressure characteristics curve of indoor fan, and the curve can embody indoor fan
The corresponding relation of air quantity and power of motor under one wind shelves, therefore can be according to the wind shelves D of indoor fan and the motor work(of indoor fan
The air quantity Q for the air pressure characteristics curve acquisition indoor set that rate P passes through respective chambers blower fan.It is understood that due to indoor fan
Power of motor P it is relevant with electric current, the rotating speed of motor, so can also be directly according to the wind shelves D and indoor fan of indoor fan
Current of electric or rotating speed obtain indoor set air quantity Q.
S23, according to the specific heat capacity of present air and density, the air quantity of indoor set, the power of motor of indoor fan, indoor set
Leaving air temp and indoor set return air temperature obtain current indoor machine efficiency.
According to one embodiment of present invention, the efficiency of current indoor machine can be obtained by following formula (6)：
Wherein, E be current indoor machine efficiency, cpFor the specific heat capacity of present air, ρ is the density of present air, and Q is room
The air quantity of interior machine, T2For the leaving air temp of indoor set, T1For the return air temperature of indoor set, P is the power of motor of indoor fan.
Specifically, before the compressor of air-conditioning system is closed, if air-conditioning system is run in a chiller mode, then
In a period of indoor fan delay operation, due to the temperature meeting rapid increase of indoor heat exchanger, refrigerating capacity can be decreased obviously, therefore
Sensible heat ratio can be very high, that is to say, that the now heat exchange of system is based on sensible heat transfer, so as to negligible latent heat heat exchanging part.And
For heating mode, sensible heat transfer is only existed, therefore the indoor fan delay runtime can be weighed by the way of sensible heat transfer
Interior refrigerating capacity/heating capacity.
Specifically, interior refrigerating capacity/heating capacity W during indoor fan delay operation being obtained by following formula (7)：
W=cp·ρ·Q·|T2-T1| (7)
, can be according to refrigerating capacity/heating capacity W after refrigerating capacity/heating capacity W in during getting indoor fan delay operation
The efficiency E for obtaining current indoor machine is calculated with the power of motor P of indoor fan, it is last according to current such as shown in above-mentioned formula (6)
The efficiency E of indoor set judges whether to need to control indoor fan to shut down.
According to one embodiment of present invention, judge whether to need to control indoor fan to stop according to the efficiency of current indoor machine
Machine, including：If the efficiency of current indoor machine is more than or equal to the first default efficiency, control indoor fan continues to run with；If
The efficiency of current indoor machine is less than the first default efficiency, then controls indoor fan to shut down.Wherein, the first default efficiency E1 can basis
Actual conditions are configured, for example, the first default efficiency E1 can be 30~50Btu/hw (or 8~15w/w).
Specifically, after the efficiency E of current indoor machine is got, energy is preset according to the efficiency E of current indoor machine and first
Relation between effect E1 judges whether to need to control indoor fan to shut down.Wherein, if E >=E1, now indoor fan is illustrated
Refrigerating capacity/heating capacity it is still larger, can continue control indoor fan operation；If E ＜ E1, illustrate the refrigeration of now indoor fan
Amount or heating capacity are smaller, if continuing to control indoor fan operation, system energy efficiency will be reduced, so now controlling indoor fan
Shut down.Thus, air-conditioning system can be made full use of to participate in refrigerating/heating ability, to realize more preferable energy-saving effect.
Fig. 5 is the flow chart of the control method of indoor fan in air-conditioning system in accordance with another embodiment of the present invention.Such as
Shown in Fig. 5, the control method of indoor fan may include following steps in the air-conditioning system：
S101, after outdoor unit shutdown, control indoor fan delay operation.
S102, obtain the return air temperature T of indoor set1, indoor set return air relative humidityThe leaving air temp T of indoor set2、
The wind shelves D of indoor fan, the power of motor P and atmospheric pressure B of indoor fan.
S103, according to the return air temperature T of indoor set1, indoor set return air relative humidityObtained with atmospheric pressure B current
The specific heat capacity Cp and density p of air.
S104, according to the wind shelves D of indoor fan and the power of motor P of indoor fan, with reference to the air pressure characteristics of indoor fan
The air quantity Q of curve acquisition indoor set.
S105, according to the specific heat capacity Cp of present air, the density p of present air, the air quantity Q of indoor set, indoor fan
Power of motor P, indoor set leaving air temp T2With the return air temperature T of indoor set1Obtain the efficiency E of current indoor machine.
S106, judges whether E >=E1 sets up.If it is, perform step S108；If not, perform step S107.
S107, control indoor fan are shut down.
S108, control indoor fan continue to run with.
In summary, in air-conditioning system according to embodiments of the present invention indoor fan control method, when receiving outdoor
During the stopping signal of machine, control indoor fan delay operation, and during the operation of blower fan delay indoors, it is default every first
Time obtains the efficiency of current indoor machine, and judges whether to need to control indoor fan to stop according to the efficiency of current indoor machine
Machine.This method to indoor fan according to the efficiency of the indoor set obtained in real time by carrying out shutdown control, so that different
There is optimal energy-saving effect during the air-conditioning system operation of blower fan delay indoors.
In addition, embodiments of the invention also proposed a kind of computer-readable recording medium, it is therein with being stored in
Instruction, when executed, air-conditioning system perform the control method of above-mentioned indoor fan.
The computer-readable recording medium of the embodiment of the present invention, by performing the control method of above-mentioned indoor fan, energy
Enough so that there is optimal energy-saving effect during the operation of blower fan delay indoors of different air-conditioning systems.
Fig. 6 is the block diagram of the control device of indoor fan in air-conditioning system according to embodiments of the present invention.At this
In the embodiment of invention, air-conditioning system includes outdoor unit and indoor set, and indoor set includes indoor fan.As shown in fig. 6, the air-conditioning
The control device of indoor fan may include in system：The acquisition module 20 of control module 10 and first.
Wherein, control module 10 is used for when receiving the stopping signal of outdoor unit, control indoor fan delay operation.The
During one acquisition module 20 is used for the operation of blower fan delay indoors, the energy of current indoor machine is obtained every the first preset time
Effect.Control module 10 is additionally operable to judge whether to need to control indoor fan to shut down according to the efficiency of current indoor machine.
According to one embodiment of present invention, as shown in fig. 7, the first acquisition module 20 includes：First acquisition submodule 21,
Second acquisition submodule 22 and the 3rd acquisition submodule 23.First acquisition submodule 21 is used to obtain room every the first preset time
Return air temperature, the return air relative humidity of indoor set, the leaving air temp of indoor set, wind shelves, the indoor fan of indoor fan of interior machine
Power of motor and atmospheric pressure.Second acquisition submodule 22 is used for return air temperature, the return air of indoor set according to indoor set
Relative humidity and atmospheric pressure obtain the specific heat capacity and density of present air, and according to the wind shelves of indoor fan and indoor fan
Power of motor obtains the air quantity of indoor set.3rd acquisition submodule 23 is for the specific heat capacity and density according to present air, interior
The air quantity of machine, the power of motor of indoor fan, the return air temperature of the leaving air temp of indoor set and indoor set obtain current indoor machine
Efficiency.
According to one embodiment of present invention, the efficiency of current indoor machine is obtained by above-mentioned formula (6).
According to one embodiment of present invention, control module 10 judges whether to need to control according to the efficiency of current indoor machine
When indoor fan is shut down, wherein, if the efficiency of current indoor machine is more than or equal to the first default efficiency, control module 10 then controls
Indoor fan continues to run with；If the efficiency of current indoor machine is less than the first default efficiency, the then wind in control room of control module 10
Machine is shut down.
It should be noted that what is do not disclosed in the control device of indoor fan in the air-conditioning system of the embodiment of the present invention is thin
Section, refer to the details disclosed in the control method of indoor fan in the air-conditioning system of the embodiment of the present invention, specifically here not
It is described in detail again.
The control device of indoor fan in air-conditioning system according to embodiments of the present invention, when the shutdown for receiving outdoor unit is believed
Number when, by control module control indoor fan delay operation, and indoors blower fan delay operation during, obtained by first
Modulus block obtains the efficiency of current indoor machine, and the energy by control module according to current indoor machine every the first preset time
Effect judges whether to need to control indoor fan to shut down.The efficiency for the indoor set that the device is obtained in real time by basis is to indoor fan
Shutdown control is carried out, so that there is optimal energy-saving effect during the operation of blower fan delay indoors of different air-conditioning systems.
In addition, the invention also provides a kind of air-conditioning system, it includes the control device of above-mentioned indoor fan.
The air-conditioning system of the embodiment of the present invention, by the control device of above-mentioned indoor fan, enable to different skies
There is optimal energy-saving effect during the adjusting system operation of blower fan delay indoors.
It should be appreciated that each several part of the present invention can be realized with hardware, software, firmware or combinations thereof.Above-mentioned
In embodiment, software that multiple steps or method can be performed in memory and by suitable instruction execution system with storage
Or firmware is realized.If, and in another embodiment, can be with well known in the art for example, realized with hardware
Any one of row technology or their combination are realized：With the logic gates for realizing logic function to data-signal
Discrete logic, have suitable combinational logic gate circuit application specific integrated circuit, programmable gate array (PGA), scene
Programmable gate array (FPGA) etc..
In addition, in the description of the invention, term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ",
" on ", " under ", "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outer ", " clockwise ", " inverse time
The orientation or position relationship of the instruction such as pin ", " axial direction ", " radial direction ", " circumference " be based on orientation shown in the drawings or position relationship,
Be for only for ease of the description present invention and simplify description, rather than instruction or imply signified device or element must have it is specific
Orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are only used for describing purpose, and it is not intended that instruction or hint relative importance
Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can be expressed or
Implicitly include at least one this feature.In the description of the invention, " multiple " are meant that at least two, such as two, three
It is individual etc., unless otherwise specifically defined.
In the present invention, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " fixation " etc.
Term should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integrally；Can be that machinery connects
Connect or electrically connect；Can be joined directly together, can also be indirectly connected by intermediary, can be in two elements
The connection in portion or the interaction relationship of two elements, limited unless otherwise clear and definite.For one of ordinary skill in the art
For, the concrete meaning of above-mentioned term in the present invention can be understood as the case may be.
In the present invention, unless otherwise clearly defined and limited, fisrt feature can be with "above" or "below" second feature
It is that the first and second features directly contact, or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature are directly over second feature or oblique upper, or be merely representative of
Fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " can be
One feature is immediately below second feature or obliquely downward, or is merely representative of fisrt feature level height and is less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or the spy for combining the embodiment or example description
Point is contained at least one embodiment or example of the present invention.In this manual, to the schematic representation of above-mentioned term not
Identical embodiment or example must be directed to.Moreover, specific features, structure, material or the feature of description can be with office
Combined in an appropriate manner in one or more embodiments or example.In addition, in the case of not conflicting, the skill of this area
Art personnel can be tied the different embodiments or example and the feature of different embodiments or example described in this specification
Close and combine.
Although embodiments of the invention have been shown and described above, it is to be understood that above-described embodiment is example
Property, it is impossible to limitation of the present invention is interpreted as, one of ordinary skill in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, changed, replacing and modification.
Claims (10)
1. the control method of indoor fan in a kind of air-conditioning system, it is characterised in that the air-conditioning system includes outdoor unit and room
Interior machine, the indoor set include indoor fan, and the control method comprises the following steps：
When receiving the stopping signal of the outdoor unit, the indoor fan delay operation is controlled；
During indoor fan delay operation, the efficiency of presently described indoor set is obtained every the first preset time；
And
Judge whether to need to control the indoor fan to shut down according to the efficiency of presently described indoor set.
2. the control method of indoor fan in air-conditioning system as claimed in claim 1, it is characterised in that described pre- every first
If the time obtains the efficiency of presently described indoor set, including：
Every the return air temperature of first preset time acquisition indoor set, the return air relative humidity of the indoor set, institute
State the power of motor and atmospheric pressure of the leaving air temp of indoor set, the wind shelves of the indoor fan, the indoor fan；
Obtained according to the return air temperature of the indoor set, the return air relative humidity of the indoor set and the atmospheric pressure current empty
The specific heat capacity and density of gas, and obtain the interior according to the wind shelves of the indoor fan and the power of motor of the indoor fan
The air quantity of machine；
According to the specific heat capacity of the present air and density, the air quantity of the indoor set, the power of motor of the indoor fan, institute
The return air temperature of the leaving air temp and the indoor set of stating indoor set obtains the efficiency of presently described indoor set.
3. the control method of indoor fan in air-conditioning system as claimed in claim 1, it is characterised in that obtained by below equation
Take the efficiency of presently described indoor set：
<mrow>
<mi>E</mi>
<mo>=</mo>
<mfrac>
<mrow>
<msub>
<mi>c</mi>
<mi>p</mi>
</msub>
<mo>&CenterDot;</mo>
<mi>&rho;</mi>
<mo>&CenterDot;</mo>
<mi>Q</mi>
<mo>&CenterDot;</mo>
<mo>|</mo>
<msub>
<mi>T</mi>
<mn>2</mn>
</msub>
<mo>-</mo>
<msub>
<mi>T</mi>
<mn>1</mn>
</msub>
<mo>|</mo>
</mrow>
<mi>P</mi>
</mfrac>
<mo>,</mo>
</mrow>
Wherein, E be presently described indoor set efficiency, cpFor the specific heat capacity of the present air, ρ is the close of the present air
Degree, Q be the indoor set air quantity, T2For the leaving air temp of the indoor set, T1For the return air temperature of the indoor set, P is institute
State the power of motor of indoor fan.
4. the control method of indoor fan in the air-conditioning system as any one of claim 1-3, it is characterised in that described
Judge whether to need to control the indoor fan to shut down according to the efficiency of presently described indoor set, including：
If the efficiency of presently described indoor set is more than or equal to the first default efficiency, the indoor fan is controlled to continue to run with；
If the efficiency of presently described indoor set is less than the described first default efficiency, the indoor fan is controlled to shut down.
5. a kind of computer-readable recording medium, it is characterised in that have and be stored in instruction therein, when the instruction is performed
When, the air-conditioning system performs the control method of the indoor fan as any one of claim 1-4.
6. the control device of indoor fan in a kind of air-conditioning system, it is characterised in that the air-conditioning system includes outdoor unit and room
Interior machine, the indoor set include indoor fan, and the control device includes：
Control module, for when receiving the stopping signal of the outdoor unit, controlling the indoor fan delay operation；
First acquisition module, for during indoor fan delay operation, being obtained every the first preset time current
The efficiency of the indoor set；And
The control module, it is additionally operable to judge whether to need to control the indoor fan to stop according to the efficiency of presently described indoor set
Machine.
7. the control device of indoor fan in air-conditioning system as claimed in claim 6, it is characterised in that described first obtains mould
Block includes：
First acquisition submodule, for the return air temperature that the indoor set is obtained every first preset time, the interior
The return air relative humidity of machine, the leaving air temp of the indoor set, the wind shelves of the indoor fan, the motor work(of the indoor fan
Rate and atmospheric pressure；
Second acquisition submodule, for the return air temperature according to the indoor set, the return air relative humidity of the indoor set and institute
State specific heat capacity and density that atmospheric pressure obtains present air, and according to the wind shelves of the indoor fan and the indoor fan
Power of motor obtains the air quantity of the indoor set；
3rd acquisition submodule, for the specific heat capacity according to the present air and density, the air quantity of the indoor set, the room
The return air temperature of the power of motor of inner blower, the leaving air temp of the indoor set and the indoor set obtains presently described indoor set
Efficiency.
8. the control device of indoor fan in air-conditioning system as claimed in claim 6, it is characterised in that obtained by below equation
Take the efficiency of presently described indoor set：
<mrow>
<mi>E</mi>
<mo>=</mo>
<mfrac>
<mrow>
<msub>
<mi>c</mi>
<mi>p</mi>
</msub>
<mo>&CenterDot;</mo>
<mi>&rho;</mi>
<mo>&CenterDot;</mo>
<mi>Q</mi>
<mo>&CenterDot;</mo>
<mo>|</mo>
<msub>
<mi>T</mi>
<mn>2</mn>
</msub>
<mo>-</mo>
<msub>
<mi>T</mi>
<mn>1</mn>
</msub>
<mo>|</mo>
</mrow>
<mi>P</mi>
</mfrac>
<mo>,</mo>
</mrow>
Wherein, E be presently described indoor set efficiency, cpFor the specific heat capacity of the present air, ρ is the close of the present air
Degree, Q be the indoor set air quantity, T2For the leaving air temp of the indoor set, T1For the return air temperature of the indoor set, P is institute
State the power of motor of indoor fan.
9. the control device of indoor fan in the air-conditioning system as any one of claim 7-8, it is characterised in that described
When control module judges whether to need to control the indoor fan shutdown according to the efficiency of presently described indoor set, wherein,
If the efficiency of presently described indoor set is more than or equal to the first default efficiency, the control module then controls the indoor wind
Machine continues to run with；
If the efficiency of presently described indoor set is less than the described first default efficiency, the control module then controls the indoor wind
Machine is shut down.
10. a kind of air-conditioning system, it is characterised in that include the control of the indoor fan as any one of claim 6-9
Device.
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| CN201710752661.3A CN107514754A (en) | 2017-08-28 | 2017-08-28 | The control method and device of air-conditioning system and its indoor fan |
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| CN201710752661.3A CN107514754A (en) | 2017-08-28 | 2017-08-28 | The control method and device of air-conditioning system and its indoor fan |
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| CN110145837A (en) * | 2019-04-19 | 2019-08-20 | 青岛海尔空调器有限总公司 | Air conditioner and its control method |
| CN112594885A (en) * | 2019-04-19 | 2021-04-02 | 青岛海尔空调器有限总公司 | Air conditioner and control method thereof |
| CN113465152A (en) * | 2021-06-02 | 2021-10-01 | 浙江吉利控股集团有限公司 | Air conditioner fan system, control method, air conditioner and storage medium |
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