CN104613593A - Air conditioner and electric heating control method thereof - Google Patents
Air conditioner and electric heating control method thereof Download PDFInfo
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- CN104613593A CN104613593A CN201410826984.9A CN201410826984A CN104613593A CN 104613593 A CN104613593 A CN 104613593A CN 201410826984 A CN201410826984 A CN 201410826984A CN 104613593 A CN104613593 A CN 104613593A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
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Abstract
The invention discloses an electric heating control method of an air conditioner. The air conditioner comprises an electric heater and an indoor draught fan. The electric heating control method comprises the following steps that when the air conditioner operates in a heating mode, a set temperature, a current indoor temperature and a current air speed gear of the indoor draught fan are obtained; the temperature difference between the set temperature and the current indoor temperature is calculated, and the temperature stage is determined according to the temperature difference; the temperature coefficient is determined according to the temperature stage, and the air speed coefficient is determined according to the current air speed gear; according to the temperature coefficient and the air speed coefficient, the output power of the electric heater in the air conditioner is calculated; the electric heater is controlled to work at the output power. By the adoption of the electric heating control method of the air conditioner, when the air conditioner operates in the heating mode, the indoor temperature change is stable, and therefore the comfort level is improved. The invention further discloses the air conditioner.
Description
Technical field
The invention belongs to technical field of electric appliances, particularly relate to a kind of electric heating controlling method of air-conditioner, and air-conditioner.
Background technology
General air-conditioner has both refrigeration and heat-production functions, when summer, refrigerant is carried out kind of refrigeration cycle by the process of evaporation, compression, condensation and expansion by air-conditioner, and time in the winter time, air-conditioner is undertaken heating circulation by the reverse order that cross valve control realization freezes, and room temperature is remained on the level of user's setting.But the heating capacity due to air-conditioner heat pump only has 1.1 times of refrigerating capacity, often need to add electric heater to make up the problem of heating capacity deficiency, to meet the needs of little refrigerating capacity and great heating capacity at air-conditioning heating system.
When the situation that air-conditioning heating amount can not be met customer need, air-conditioner will start electrical heating (auxiliary heat) function and carry out temperature adjustment, the electric heater namely starting air-conditioner inside is heated to air, and by axial-flow fan, hot blast is delivered to indoor, thus plays the effect heated.At present, in air-conditioner, the power output of electric heater is constant, and temperature controls to carry out mainly through the rotating speed of axial-flow fan in conditioning chamber, and the gear of such as common axial-flow fan has high, medium and low third gear.When axial-flow fan low-speed running, thermal diffusion is slow, from air-conditioner distance more close to, temperature is higher, and along with the increase of distance, temperature is lower, and indoor temperature is uneven.When axial-flow fan runs at high rotating speed, thermal diffusion is fast, and room temperature is comparatively even, but heating effect is lower, adjustable temperature range relative narrower, and the blower fan noise produced that runs up is larger.When indoor temperature T being detected than design temperature T0 height, by improving the rotating speed of axial-flow fan, accelerate the speed of thermal diffusion, lower the temperature, otherwise need to close electric heater, when temperature restarts electric heating function lower than during setting value, above control method, variations in temperature is obvious, and users'comfort is low.
Summary of the invention
The present invention is intended to solve one of technical problem in correlation technique at least to a certain extent.For this reason, one object of the present invention is the electric heating controlling method proposing a kind of air-conditioner, and this control method when air-conditioner runs heating mode, can make indoor temperature change generated in case steady, improve comfortableness.
Another object of the present invention is to propose a kind of air-conditioner.
For achieving the above object, an aspect of of the present present invention embodiment proposes a kind of electric heating controlling method of air-conditioner, wherein, air-conditioner comprises motor hot gas and indoor fan, this control method comprises the following steps: when detecting that described air-conditioner runs heating mode, obtains the current wind-speed gear of design temperature, current indoor temperature and described indoor fan; Calculate the temperature difference of described design temperature and described current indoor temperature, and determine affiliated temperature stage according to temperature difference; According to described affiliated temperature stage determination temperature coefficient, and according to described current wind-speed gear determination wind speed coefficient; The power output of electric heater in air-conditioner according to described temperature coefficient and described wind speed coefficient calculations; And control described electric heater and carry out work with described power output.
According to the electric heating controlling method of the air-conditioner of the embodiment of the present invention, when air conditioner heat-production runs, consider design temperature and the difference of current indoor temperature and the wind-speed gear of indoor fan, and then obtain temperature coefficient and wind speed coefficient, according to the power output of temperature coefficient and wind speed coefficient calculations electric heater, and control electric heater with the power output work calculated, the temperature governing speed under heating mode and fineness can be improved, variations in temperature is steady, improves comfortableness.
In some embodiments of the invention, by the power output of electric heater in air-conditioner described in following formulae discovery:
P=P
max* β * ρ, wherein, P
maxfor the peak power output of described electric heater, P is the power output of described electric heater, and β is described temperature coefficient, and ρ is described wind speed coefficient.
In some embodiments of the invention, described temperature coefficient is inquired about by following table:
Wherein, Δ t is described temperature difference.
Particularly, described first threshold is 10 DEG C, and described Second Threshold is 6 DEG C, and described 3rd threshold value is 4 DEG C, and described 4th threshold value is 2 DEG C.
Wherein, if described temperature difference is lower than described 4th threshold value, then controls described electric heater and do not start.
In some embodiments of the invention, inquired about by following table and describedly determine wind speed coefficient:
In some embodiments of the invention, above-mentioned control method also comprises: the heating capacity according to described air-conditioner obtains power back-off constant, and compensates according to the power output of described power back-off constant to described electric heater.
For achieving the above object, another aspect of the present invention embodiment proposes a kind of air-conditioner, and this air-conditioner comprises: indoor set, described indoor set comprise indoor fan, electric heater, indoor heat converter, for detecting temperature sensor and the controller of indoor temperature, off-premises station, described off-premises station comprises compressor, outdoor heat exchanger and outdoor fan, wherein, after described controller receives and heats instruction, control described compressor start, and control the operation of described indoor fan, described controller obtains design temperature, the current wind-speed gear of current indoor temperature and described indoor fan, calculate the temperature difference of described design temperature and described current indoor temperature, and determine affiliated temperature stage according to temperature difference, according to described affiliated temperature stage determination temperature coefficient, and according to described current wind-speed gear determination wind speed coefficient, the power output of electric heater in air-conditioner according to described temperature coefficient and described wind speed coefficient calculations, and control described electric heater and carry out work with described power output.
According to the air-conditioner of the embodiment of the present invention, when heating operation, consider design temperature and the difference of current indoor temperature and the wind-speed gear of indoor fan, and then obtain temperature coefficient and wind speed coefficient, according to the power output of temperature coefficient and wind speed coefficient calculations electric heater, and control electric heater with the power output work calculated, the temperature governing speed under heating mode and fineness can be improved, variations in temperature is steady, improves comfortableness.
In some embodiments of the invention, described controller is by the power output of electric heater in air-conditioner described in following formulae discovery:
P=P
max* β * ρ, wherein, P
maxfor the peak power output of described electric heater, P is the power output of described electric heater, and β is described temperature coefficient, and ρ is described wind speed coefficient.
In some embodiments of the invention, described controller inquires about described temperature coefficient by following table:
Wherein, Δ t is described temperature difference.
Wherein, if described temperature difference is lower than described 4th threshold value, then described controller controls described electric heater and does not start.
In some embodiments of the invention, described controller is inquired about by following table and is describedly determined wind speed coefficient:
In some embodiments of the invention, described controller also obtains power back-off constant for the heating capacity according to described air-conditioner, and compensates according to the power output of described power back-off constant to described electric heater.
Accompanying drawing explanation
Fig. 1 is the flow chart of the electric heating controlling method of air-conditioner according to an embodiment of the invention;
Fig. 2 is the flow chart of the electric heating controlling method of air-conditioner according to a specific embodiment of the present invention.
Detailed description of the invention
Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Be exemplary below by the embodiment be described with reference to the drawings, be intended to for explaining the present invention, and can not limitation of the present invention be interpreted as.
Below with reference to the accompanying drawings electric heating controlling method and the air-conditioner of the air-conditioner of the embodiment of the present invention are described.
Air-conditioner comprises indoor set and off-premises station, and indoor set comprises indoor heat converter, wind deflector, indoor fan such as indoor axial-flow fan, indoor controller, electric heater, indoor temperature transmitter, indoor coil pipe sensor; Off-premises station comprises compressor, outdoor heat converter, outdoor fan, outdoor temperature sensor, outdoor coil temperature sensor, in embodiments of the present invention, the electric heater that air-conditioner adopts can be PTC electric heater part, its have safe, energy-conservation, heat soon, can the feature such as ultralow temperature startup.
Air-conditioner in a heating mode, outdoor compressor is discharged HTHP refrigerant and is carried out heat exchange through indoor heat converter and the air flowing into indoor set, thus improve the temperature of room air, the refrigerant of high pressure low temperature becomes low temperature low pressure gas refrigerant after throttling arrangement decompression, then after the heat absorption of outdoor heat converter room, compressor is entered, become high temperature and high pressure gas refrigerant, enter the next one and heat circulation.If the heating capacity of air-conditioner is not met consumers' demand, then need to start electric heater and carry out auxiliary heating, reach the heating capacity of needs.
Below the electric heating controlling method of the air-conditioner of the embodiment of the present invention is described.
Fig. 1 is the flow chart of the electric heating controlling method of air-conditioner according to an embodiment of the invention.As shown in Figure 1, this control method comprises the following steps:
S1, when detecting that air-conditioner runs heating mode, obtains the current wind-speed gear of design temperature, current indoor temperature and indoor fan.
Current indoor temperature can be detected by indoor temperature transmitter.The wind-speed gear of such as indoor fan can be divided into height, neutralize low third gear.
S2, calculates the temperature difference of design temperature and current indoor temperature, and determines affiliated temperature stage according to temperature difference.
In an embodiment of the present invention, by multiple threshold temperature, such as T1, T2, T3 ..., the difference of design temperature and current indoor temperature is divided into n (n=1,2,3 ...) the individual different stage.Obtain the difference such as Δ t=Ts-Tt that design temperature is such as set to Ts and current indoor temperature Tt, judge the temperature stage belonging to difference according to temperature threshold.
For four temperature thresholds, such as, when Δ t is greater than first threshold, Δ t belongs to the first temperature stage, and when meeting first threshold > Δ t> Second Threshold, Δ t belongs to the second temperature stage, when meeting Second Threshold > Δ t> the 3rd threshold value, Δ t belongs to the 3rd temperature stage, and when meeting the 3rd threshold value > Δ t> the 4th threshold value, Δ t belongs to the 4th temperature stage.
S3, according to affiliated temperature stage determination temperature coefficient, and according to current wind-speed gear determination wind speed coefficient.
Particularly, Δ t belongs to different temperature stage, then corresponding different temperature coefficient, here, temperature coefficient can think relevant with the governing speed of temperature, such as design temperature and indoor temperature difference are greater than T1, its temperature coefficient respective value is 1, if temperature approach is greater than Tn, then and the corresponding n of temperature coefficient, temperature approach is greater than Ta, and temperature coefficient is a.In one embodiment of the invention, for four temperature stage, temperature coefficient can be inquired about by following table:
Table 1
Such as, when the difference of design temperature and current indoor temperature belongs to the first temperature stage, corresponding temperature coefficient is that the first temperature coefficient is set to β=β 1, when difference belongs to the second temperature stage, corresponding temperature coefficient is that the second temperature coefficient is set to β=β 2, and when difference belongs to the 3rd temperature stage, corresponding temperature coefficient is that the 3rd temperature coefficient is set to β=β 3, when difference belongs to the 4th temperature stage, corresponding temperature coefficient is that the 4th temperature coefficient is set to β=β 4.
In addition, consider the wind speed of the indoor fan of user's setting simultaneously, the wind speed coefficient that different wind speed is corresponding different, wind speed is higher, and wind speed system is larger, then temperature governing speed is faster, here, wind speed coefficient can think relevant with the governing speed of temperature, in one embodiment of the invention, can determine wind speed coefficient by following table inquiry:
Table 2
Such as, when the wind-speed gear of indoor fan is divided into height, neutralizes low three gears, when indoor fan is in high tap position, wind speed coefficient is the first wind speed coefficient such as ρ=ρ 1.
S4, according to the power output of electric heater in temperature coefficient and wind speed coefficient calculations air-conditioner.
Particularly, in one embodiment of the invention, can by the power output of electric heater in following formulae discovery air-conditioner:
P=P
max* β * ρ, wherein, P
maxfor the peak power output of electric heater, P is the power output of electric heater, and β is temperature coefficient, and ρ is wind speed coefficient.
S5, controls electric heater and carries out work with power output.
Particularly, after calculating the power output obtaining motor heat device, calculate the angle of flow of the power controller such as controllable silicon or solid-state relay of electric heater further, change the virtual value of input voltage, and then change the defeated turnout of electric heater, to make electric heater to calculate the defeated turnout work obtained.
Can find out according to above formula, under the heating mode of air-conditioner, the power output of electric heater can be divided into multiple gear, such as above-mentioned four temperature stage and three wind-speed gears, then the power output of electric heater is divided into 13 gears, comprising the idle situation of electric heater, thermoregulator fineness is greatly improved, it is tightr that temperature stage divides, wind-speed gear is more, then the adjustment fineness of temperature is higher, and temperature regulates more steady, then regulating the comfort level that in temperature course, user experiences higher.
In addition, in some embodiments of the invention, consider the difference of air-conditioner itself, power back-off constant can be obtained according to the heating capacity of air-conditioner, and compensate according to the power output of power back-off constant to electric heater, and then control electric heater with the power output work after compensation, such as, obtain power back-off constant with the difference of the refrigerating capacity of the heat pump of different air-conditioner type, need particularly to obtain according to the design parameter of heat pump.
With specific embodiment, electric heating control process of the present invention is specifically described below.In one particular embodiment of the present invention, setting power penalty constant is 0, does not namely consider air-conditioner individual difference, and the present embodiment does not consider the defrost process of air-conditioner, only for heating operations.Wherein, first threshold is 10 DEG C, and Second Threshold is 6 DEG C, and the 3rd threshold value is 4 DEG C, and the 4th threshold value is 2 DEG C.Temperature coefficient and wind speed coefficient are depicted as example with following table:
Particularly, the instruction receiving user when air-conditioner enters heating mode, heat pump heats, indoor controller gathers indoor temperature and design temperature and calculates difference DELTA t, in one embodiment of the invention, if when temperature difference is such as less than 2 lower than the 4th threshold value, then control electric heater not start, otherwise control electric heater and start, indoor controller controls the power output of electric heater according to the size of Δ t.
Such as, as Δ t>10, think that current indoor temperature and design temperature difference are large, air-conditioner should work large power output state, makes user depart from cold state as early as possible.When the wind-speed gear of the indoor fan of user's setting is high, electric heater output function is peak power, and electrical heating speed is fast, and thermal diffusion is the fastest, and governing speed is the fastest.When user's wind speed setting is middle rank, calculating formula according to power output can obtain, and electric heater power output is 95% of peak power, and thermal diffusion is very fast, and governing speed is very fast; When wind speed is low, electric heater power output is 85% of peak power, and thermal diffusion obtains the slowest, but temperature rises very fast, and room temperature is successively decreased with the increase of the distance with indoor set.
As 10>=Δ t>6, think that room temperature comparatively fast rises, gradually near setting value, governing speed can suitably slow down: when the wind speed of user's setting is high, power output is 75% of peak power output, when the wind speed of user's setting is middle, electric heater output function is 71.25% of peak power, and when wind speed is low, power output only has 63.75% of peak power output, temperature governing speed slows down, and users'comfort gets a promotion.
As 6>=Δ t>4, think room temperature gradually near setting value, when the wind speed of user's setting is high, power output is 50% of peak power output, and when the wind speed of user's setting is middle, electric heater output function is 47.5% of peak power, when wind speed is low, power output only has 42.5% of peak power output, and temperature governing speed is comparatively slow, and users'comfort gets a promotion.
As 4>=Δ t>2, think room temperature comparatively close to design temperature, can power output be lowered.When the wind speed of user's setting is high, power output is 25% of peak power output, when the wind speed of user's setting is middle, electric heater output function is 23.75% of peak power, when wind speed is low, power output only has 21.25% of peak power output, and temperature governing speed is comparatively slow, and users'comfort gets a promotion further.
Can find out, in a heating mode, the power output of electric heater is divided into 13 grades (containing not mode of operation) air-conditioner, and thermoregulator fineness is greatly improved.Temperature stage divides thinner, and wind-speed gear is more, and fineness is higher.Wherein, it should be noted that, air-conditioner in a heating mode the working time longer, the relative time that electric heater is operated in first and second temperature stage is shorter, the relative time being operated in third and fourth temperature stage is longer, and when temperature tends towards stability, air-conditioner is interval by being in the 4th threshold values for a long time, temperature governing speed is comparatively slow, and user is comfort level the most.
In addition, in order to avoid controlling frequently to switch control mode at same temperature near threshold, alleviate the running frequency of indoor controller further, after sending control instruction, time delay a period of time (as 1 minute) is gathered service data next time more at every turn, control the size of electric heater power output.
Put it briefly, as shown in Figure 2, control procedure comprises:
S100, heats beginning.
S200, heat pump work.
S300, judges whether the difference of design temperature and current indoor temperature is greater than the 4th threshold value.
If so, then enter step S400, otherwise enter step S500,
S400, accounting temperature coefficient.
S500, electric heater does not run.
S600, obtains wind speed coefficient.
S700, calculates electric heater power output.
S800, indoor set controller controls electric heater and runs.
S900, time delay gathers indoor temperature information, and returns step S300.
In sum, according to the electric heating controlling method of the air-conditioner of the embodiment of the present invention, when air conditioner heat-production runs, consider design temperature and the difference of current indoor temperature and the wind-speed gear of indoor fan, and then acquisition temperature coefficient and wind speed coefficient, according to the power output of temperature coefficient and wind speed coefficient calculations electric heater, and control electric heater with the power output work calculated, can improve the temperature governing speed under heating mode and fineness, variations in temperature is steady, improves comfortableness.
The air-conditioner that embodiment according to a further aspect in the invention proposes is described with reference to the accompanying drawings.
Air-conditioner comprises indoor set and off-premises station, indoor set comprise indoor fan, electric heater, indoor heat converter, for detecting temperature sensor and the controller of indoor temperature.Off-premises station comprises compressor, outdoor heat exchanger and outdoor fan.
Wherein, after controller receives and heats instruction, control compressor start, and control room inner blower runs, controller obtains the current wind-speed gear of design temperature, current indoor temperature and indoor fan, and current indoor temperature can be detected by indoor temperature transmitter.The wind-speed gear of such as indoor fan can be divided into height, neutralize low third gear.
Controller calculates the temperature difference of design temperature and current indoor temperature, and determines affiliated temperature stage according to temperature difference.In an embodiment of the present invention, by multiple threshold temperature, such as T1, T2, T3 ..., the difference of design temperature and current indoor temperature is divided into n (n=1,2,3 ...) the individual different stage.Obtain the difference such as Δ t=Ts-Tt that design temperature is such as set to Ts and current indoor temperature Tt, judge the temperature stage belonging to difference according to temperature threshold.
For four temperature thresholds, such as, when Δ t is greater than first threshold, Δ t belongs to the first temperature stage, and when meeting first threshold > Δ t> Second Threshold, Δ t belongs to the second temperature stage, when meeting Second Threshold > Δ t> the 3rd threshold value, Δ t belongs to the 3rd temperature stage, and when meeting the 3rd threshold value > Δ t> the 4th threshold value, Δ t belongs to the 4th temperature stage.If temperature difference is lower than the 4th threshold value, then controller control electric heater does not start.
And then, controller according to affiliated temperature stage determination temperature coefficient, and according to current wind-speed gear determination wind speed coefficient.Particularly, Δ t belongs to different temperature stage, then corresponding different temperature coefficient, here, temperature coefficient can think relevant with the governing speed of temperature, such as design temperature and indoor temperature difference are greater than T1, its temperature coefficient respective value is 1, if temperature approach is greater than Tn, then and the corresponding n of temperature coefficient, temperature approach is greater than Ta, and temperature coefficient is a.In one embodiment of the invention, for four temperature stage, controller can inquire about temperature coefficient by table 1.Such as, when the difference of design temperature and current indoor temperature belongs to the first temperature stage, corresponding temperature coefficient is that the first temperature coefficient is set to β=β 1, when difference belongs to the second temperature stage, corresponding temperature coefficient is that the second temperature coefficient is set to β=β 2, and when difference belongs to the 3rd temperature stage, corresponding temperature coefficient is that the 3rd temperature coefficient is set to β=β 3, when difference belongs to the 4th temperature stage, corresponding temperature coefficient is that the 4th temperature coefficient is set to β=β 4.
In addition, consider the wind speed of the indoor fan of user's setting simultaneously, the wind speed coefficient that different wind speed is corresponding different, wind speed is higher, and wind speed system is larger, then temperature governing speed is faster, here, wind speed coefficient can think relevant with the governing speed of temperature, and in one embodiment of the invention, controller can determine wind speed coefficient by table 2 inquiry.Such as, when the wind-speed gear of indoor fan is divided into height, neutralizes low three gears, when indoor fan is in high tap position, wind speed coefficient is the first wind speed coefficient such as ρ=ρ 1.
Controller is according to the power output of electric heater in temperature coefficient and wind speed coefficient calculations air-conditioner.Particularly, in one embodiment of the invention, can by the power output of electric heater in following formulae discovery air-conditioner:
P=P
max* β * ρ, wherein, P
maxfor the peak power output of electric heater, P is the power output of electric heater, and β is temperature coefficient, and ρ is wind speed coefficient.
In addition, consider the difference of air-conditioner itself, power back-off constant can be obtained according to the heating capacity of air-conditioner, and compensate according to the power output of power back-off constant to electric heater, and then controller controls electric heater with the power output work after compensation, such as, obtain power back-off constant with the difference of the refrigerating capacity of the heat pump of different air-conditioner type, need particularly to obtain according to the design parameter of heat pump.
And then controller control electric heater carries out work with the power output calculated.Particularly, after electric heater starts, write the power output algorithm of electric heater according to design temperature and the temperature difference of current indoor temperature, the wind speed of indoor fan and power back-off constant, algorithm and relevant parameter can be kept in controller 105.After calculating the power output obtaining electric heater, further controller calculates the angle of flow of the power controller such as controllable silicon or solid-state relay of electric heater, change the virtual value of input voltage, and then change the defeated turnout of electric heater, to make electric heater to calculate the defeated turnout work obtained.
According to the air-conditioner of the embodiment of the present invention, in a heating mode, the power output of electric heater can be divided into multiple gear, such as above-mentioned four temperature stage and three wind-speed gears, then the power output of electric heater is divided into 13 gears, comprising the idle situation of electric heater, thermoregulator fineness is greatly improved, it is tightr that temperature stage divides, wind-speed gear is more, then the adjustment fineness of temperature is higher, and temperature regulates more steady, then regulating the comfort level that in temperature course, user experiences higher.
In the description of this description, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present invention or example.In this manual, to the schematic representation of above-mentioned term not must for be identical embodiment or example.And the specific features of description, structure, material or feature can combine in one or more embodiment in office or example in an appropriate manner.In addition, when not conflicting, the feature of the different embodiment described in this description or example and different embodiment or example can carry out combining and combining by those skilled in the art.
In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance or imply the quantity indicating indicated technical characteristic.Thus, be limited with " first ", the feature of " second " can express or impliedly comprise at least one this feature.In describing the invention, the implication of " multiple " is at least two, such as two, three etc., unless otherwise expressly limited specifically.
Describe and can be understood in flow chart or in this any process otherwise described or method, represent and comprise one or more for realizing the module of the code of the executable instruction of the step of specific logical function or process, fragment or part, and the scope of the preferred embodiment of the present invention comprises other realization, wherein can not according to order that is shown or that discuss, comprise according to involved function by the mode while of basic or by contrary order, carry out n-back test, this should understand by embodiments of the invention person of ordinary skill in the field.
In flow charts represent or in this logic otherwise described and/or step, such as, the sequencing list of the executable instruction for realizing logic function can be considered to, may be embodied in any computer-readable medium, for instruction execution system, device or equipment (as computer based system, comprise the system of processor or other can from instruction execution system, device or equipment instruction fetch and perform the system of instruction) use, or to use in conjunction with these instruction execution systems, device or equipment.With regard to this description, " computer-readable medium " can be anyly can to comprise, store, communicate, propagate or transmission procedure for instruction execution system, device or equipment or the device that uses in conjunction with these instruction execution systems, device or equipment.The example more specifically (non-exhaustive list) of computer-readable medium comprises following: the electrical connection section (electronic installation) with one or more wiring, portable computer diskette box (magnetic device), random access memory (RAM), read-only storage (ROM), erasablely edit read-only storage (EPROM or flash memory), fiber device, and portable optic disk read-only storage (CDROM).In addition, computer-readable medium can be even paper or other suitable media that can print described program thereon, because can such as by carrying out optical scanner to paper or other media, then carry out editing, decipher or carry out process with other suitable methods if desired and electronically obtain described program, be then stored in computer storage.
Should be appreciated that each several part of the present invention can realize with hardware, software, firmware or their combination.In the above-described embodiment, multiple step or method can with to store in memory and the software performed by suitable instruction execution system or firmware realize.Such as, if realized with hardware, the same in another embodiment, can realize by any one in following technology well known in the art or their combination: the discrete logic with the logic gates for realizing logic function to data-signal, there is the special IC of suitable combinational logic gate circuit, programmable gate array (PGA), field programmable gate array (FPGA) etc.
Those skilled in the art are appreciated that realizing all or part of step that above-described embodiment method carries is that the hardware that can carry out instruction relevant by program completes, described program can be stored in a kind of computer-readable recording medium, this program perform time, step comprising embodiment of the method one or a combination set of.
In addition, each functional unit in each embodiment of the present invention can be integrated in a processing module, also can be that the independent physics of unit exists, also can be integrated in a module by two or more unit.Above-mentioned integrated module both can adopt the form of hardware to realize, and the form of software function module also can be adopted to realize.If described integrated module using the form of software function module realize and as independently production marketing or use time, also can be stored in a computer read/write memory medium.
The above-mentioned storage medium mentioned can be read-only storage, disk or CD etc.Although illustrate and describe embodiments of the invention above, be understandable that, above-described embodiment is exemplary, can not be interpreted as limitation of the present invention, and those of ordinary skill in the art can change above-described embodiment within the scope of the invention, revises, replace and modification.
Claims (13)
1. an electric heating controlling method for air-conditioner, is characterized in that, air-conditioner comprises electric heater and indoor fan, and described electric heating controlling method comprises the following steps:
When detecting that described air-conditioner runs heating mode, obtain the current wind-speed gear of design temperature, current indoor temperature and described indoor fan;
Calculate the temperature difference of described design temperature and described current indoor temperature, and determine affiliated temperature stage according to temperature difference;
According to described affiliated temperature stage determination temperature coefficient, and according to described current wind-speed gear determination wind speed coefficient;
The power output of electric heater in air-conditioner according to described temperature coefficient and described wind speed coefficient calculations; And
Control described electric heater and carry out work with described power output.
2. the electric heating controlling method of air-conditioner as claimed in claim 1, is characterized in that, the power output by electric heater in air-conditioner described in following formulae discovery:
P=P
max* β * ρ, wherein, P
maxfor the peak power output of described electric heater, P is the power output of described electric heater, and β is described temperature coefficient, and ρ is described wind speed coefficient.
3. the electric heating controlling method of air-conditioner as claimed in claim 1, is characterized in that, inquire about described temperature coefficient by following table:
Wherein, Δ t is described temperature difference.
4. the electric heating controlling method of air-conditioner as claimed in claim 3, it is characterized in that, described first threshold is 10 DEG C, and described Second Threshold is 6 DEG C, and described 3rd threshold value is 4 DEG C, and described 4th threshold value is 2 DEG C.
5. the electric heating controlling method of air-conditioner as claimed in claim 3, is characterized in that, if described temperature difference is lower than described 4th threshold value, then controls described electric heater and do not start.
6. the electric heating controlling method of air-conditioner as claimed in claim 2, is characterized in that, is inquired about describedly determine wind speed coefficient by following table:
7. the electric heating controlling method of air-conditioner as claimed in claim 1, is characterized in that, also comprise:
Heating capacity according to described air-conditioner obtains power back-off constant, and compensates according to the power output of described power back-off constant to described electric heater.
8. an air-conditioner, is characterized in that, comprising:
Indoor set, described indoor set comprise indoor fan, electric heater, indoor heat converter, for detecting temperature sensor and the controller of indoor temperature;
Off-premises station, described off-premises station comprises compressor, outdoor heat exchanger and outdoor fan;
Wherein, after described controller receives and heats instruction, control described compressor start, and control the operation of described indoor fan, described controller obtains design temperature, the current wind-speed gear of current indoor temperature and described indoor fan, calculate the temperature difference of described design temperature and described current indoor temperature, and determine affiliated temperature stage according to temperature difference, according to described affiliated temperature stage determination temperature coefficient, and according to described current wind-speed gear determination wind speed coefficient, the power output of electric heater in air-conditioner according to described temperature coefficient and described wind speed coefficient calculations, and control described electric heater and carry out work with described power output.
9. air-conditioner as claimed in claim 8, it is characterized in that, described controller is by the power output of electric heater in air-conditioner described in following formulae discovery:
P=P
max* β * ρ, wherein, P
maxfor the peak power output of described electric heater, P is the power output of described electric heater, and β is described temperature coefficient, and ρ is described wind speed coefficient.
10. air-conditioner as claimed in claim 9, it is characterized in that, described controller inquires about described temperature coefficient by following table:
Wherein, Δ t is described temperature difference.
11. air-conditioners as claimed in claim 10, is characterized in that, if described temperature difference is lower than described 4th threshold value, then described controller controls described electric heater and do not start.
12. air-conditioners as claimed in claim 9, is characterized in that, described controller is inquired about by following table and describedly determined wind speed coefficient:
13. air-conditioners as claimed in claim 8, is characterized in that, described controller also obtains power back-off constant for the heating capacity according to described air-conditioner, and compensates according to the power output of described power back-off constant to described electric heater.
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