CN105987478A - Frequency-variable air conditioner control method and control device, and frequency-variable air conditioner - Google Patents
Frequency-variable air conditioner control method and control device, and frequency-variable air conditioner Download PDFInfo
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- CN105987478A CN105987478A CN201510041328.2A CN201510041328A CN105987478A CN 105987478 A CN105987478 A CN 105987478A CN 201510041328 A CN201510041328 A CN 201510041328A CN 105987478 A CN105987478 A CN 105987478A
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Abstract
The invention discloses a frequency-variable air conditioner control method and control device, and a frequency-variable air conditioner. The control method includes: detecting the real time indoor environment temperature when a received air conditioner control command is a refrigeration energy conservation comfort command, and comparing the real time indoor environment temperature and the set indoor environment temperature threshold; controlling the frequency-variable air conditioner to run according to the original frequency-variable control mode of the frequency-variable air conditioner if the real time indoor environment temperature is not less than the set indoor environment temperature threshold; acquiring a compressor target frequency calculated based on the original frequency-variable control mode if the real time indoor environment temperature is less than the set indoor environment temperature threshold, and determining if the compressor target frequency is less than a first set compressor frequency or not; controlling a compressor to run at the first set compressor frequency if so, and controlling an outdoor fan to run at a set revolution speed; and controlling the compressor and the outdoor fan to run according to the original frequency-variable control mode if not. The control method can improve the energy-saving performance and the refrigeration comfort of the frequency-variable air conditioner.
Description
Technical field
The invention belongs to air-conditioning technique field, specifically, relate to convertible frequency air-conditioner, more specifically, relate to control method for frequency conversion air conditioner, control device and convertible frequency air-conditioner.
Background technology
In hot summer, utilize convertible frequency air-conditioner can room air be freezed, build a nice and cool environment for user.But, convertible frequency air-conditioner power consumption is very big, often becomes the power consumption electrical equipment that family is main.
In order to reduce the power consumption of convertible frequency air-conditioner, there is a kind of control method for frequency conversion air conditioner in prior art, by detection outdoor environment temperature, from default some compressor operating frequencies, select the preset compressor running frequency corresponding with outdoor environment temperature, utilize preset compressor running frequency that convertible frequency air-conditioner is controlled.Outdoor environment temperature is the lowest, and corresponding preset compressor frequency is the lowest.
Above-mentioned control method using outdoor environment temperature as controlling according to parameter, do not consider the impact of user place indoor environment temperature, thus cannot according to indoor environment temperature carry out quick, accurately regulate, be difficult to ensure that the convertible frequency air-conditioner regulation to indoor environment temperature, so affect indoor user to indoor environment temperature comfortableness requirement.And, preset compressor running frequency is directly proportional to outdoor environment temperature, if outdoor environment temperature as little as certain value, preset compressor running frequency also can be the lowest.When compressor operating frequency as little as certain numerical value, can not play any refrigeration, now, although power consumption is low, but pure power consumption, not play the running of refrigeration, Energy Efficiency Ratio is extremely low, and energy-saving effect is poor.
Summary of the invention
It is an object of the invention to provide a kind of control method for frequency conversion air conditioner and control device, to improve the energy-conservation of convertible frequency air-conditioner and refrigeration comfortableness.
For achieving the above object, the control method for frequency conversion air conditioner that the present invention provides uses following technical proposals to be achieved:
A kind of control method for frequency conversion air conditioner, described method includes:
When the airconditioning control instruction instruction comfortable for refrigerated energy-saving received, perform following refrigerated energy-saving comfortable control process:
Detect real-time indoor environment temperature, and make comparisons with setting indoor environment temperature threshold value；
If described real-time indoor environment temperature is not less than described setting indoor environment temperature threshold value, control convertible frequency air-conditioner according to convertible frequency air-conditioner original VFC mode operation；
If described real-time indoor environment temperature is less than described setting indoor environment temperature threshold value, obtain the compressor target frequency gone out according to described original VFC mode computation, it is judged that whether described compressor target frequency is less than the first setting compressor frequency；If so, control described compressor and set compressor frequency operation with described first, control outdoor fan and run with setting speed；If it is not, control described compressor and described outdoor fan according to described original VFC mode operation.
Method as above, during the comfortable control of described refrigerated energy-saving, if described real-time indoor environment temperature is less than described setting indoor environment temperature threshold value, and the actual motion frequency of described compressor is less than the second setting compressor frequency, the aperture of the electric expansion valve controlling convertible frequency air-conditioner is fixed as setting aperture, otherwise, according to the aperture of electronic valve described in described original VFC Schema control；Described second sets compressor frequency sets compressor frequency more than described first.
Method as above, during the comfortable control of described refrigerated energy-saving, if described real-time indoor environment temperature is less than described setting indoor environment temperature threshold value, and described compressor ran for the first setting time with the actual motion frequency setting compressor frequency less than described second, control the actual motion frequency of described compressor and rise to the 3rd setting compressor frequency and continuous service second sets the time, then control the original frequency before compressor rises with frequency and run.
Method as above, when the airconditioning control instruction instruction comfortable for refrigerated energy-saving received, the acquiescence airconditioning control parameter of the display comfortable control of refrigerated energy-saving；If being not detected by the airconditioning control parameter reset within the time of setting, perform described refrigerated energy-saving comfortable control process according to described acquiescence airconditioning control parameter；If the airconditioning control parameter reset being detected in described setting arranges the time, perform described refrigerated energy-saving comfortable control process according to the described airconditioning control parameter reset.
Method as above, the comfortable instruction of described refrigerated energy-saving is sent by the specified button being arranged on convertible frequency air-conditioner control panel or convertible frequency air-conditioner remote controller or convertible frequency air-conditioner control of intelligent terminal.
For realizing aforementioned invention purpose, the convertible frequency air-conditioner that the present invention provides controls device and uses following technical proposals to realize:
A kind of convertible frequency air-conditioner controls device, and described device includes:
Refrigerated energy-saving comfortable command reception module, is used for receiving the comfortable instruction of refrigerated energy-saving, and starts the comfortable control module of refrigerated energy-saving；
The comfortable control module of refrigerated energy-saving includes:
Indoor environment temperature detection and comparing unit, be used for detecting real-time indoor environment temperature, and make comparisons with setting indoor environment temperature threshold value, export comparative result；
Control unit, for controlling convertible frequency air-conditioner when described indoor environment temperature is not less than described setting indoor environment temperature threshold value according to convertible frequency air-conditioner original VFC mode operation, and at described real-time indoor environment temperature less than described setting indoor environment temperature threshold value, obtain the compressor target frequency gone out according to described original VFC mode computation, it is judged that whether described compressor target frequency is less than the first setting compressor frequency；If so, control described compressor and set compressor frequency operation with described first, control outdoor fan and run with setting speed, if it is not, control described compressor and described outdoor fan according to described original VFC mode operation.
Device as above, described control unit is additionally operable at described real-time indoor environment temperature less than described setting indoor environment temperature threshold value, and the actual motion frequency of described compressor less than the second setting compressor frequency time, control the aperture of electric expansion valve of convertible frequency air-conditioner for setting aperture, otherwise, according to the aperture of electronic valve described in described original VFC Schema control；And described second set compressor frequency more than described first set compressor frequency.
Device as above, described control unit is additionally operable to described real-time indoor environment temperature less than described setting indoor environment temperature threshold value, and described compressor is when running for the first setting time with the actual motion frequency setting compressor frequency less than described second, control the actual motion frequency of described compressor and rise to the 3rd setting compressor frequency and continuous service second sets the time, then control the original frequency before compressor rises with frequency and run.
Device as above, the comfortable control module of described refrigerated energy-saving also includes:
Airconditioning control parameter processing unit, for showing the acquiescence airconditioning control parameter of the comfortable control of refrigerated energy-saving, whether detection exists the airconditioning control parameter reset within the time of setting, the airconditioning control parameter that resets described in receiving in the presence of, and export described acquiescence airconditioning control parameter or described in the airconditioning control parameter that resets；
Acquiescence airconditioning control parameter that described control unit exports according to described airconditioning control parameter processing unit or described in the airconditioning control parameter that resets perform control.
Additionally, present invention also offers a kind of convertible frequency air-conditioner with above-mentioned convertible frequency air-conditioner control device.
Compared with prior art, advantages of the present invention and good effect be: when the present invention performs that refrigerated energy-saving is comfortable to be controlled, detection indoor environment temperature, if indoor environment temperature is higher, according to original VFC Schema control convertible frequency air-conditioner, make indoor environment temperature rapid decrease, to reach the temperature of comfortableness；If indoor environment temperature is close to design temperature during low-frequency operation, the minimum operation frequency of compressor is limited, there is while realizing low energy consumption certain refrigerating capacity, maintain the balance of indoor temperature, it is to avoid fluctuations in indoor temperature is big and causes user uncomfortable；Meanwhile, when compressor limit frequency runs, control outdoor fan and run with fixing setting speed, reach the balance of refrigeration system, stablize indoor temperature further, improve the comfortableness of indoor temperature.
After reading in conjunction with the accompanying the detailed description of the invention of the present invention, the other features and advantages of the invention will become clearer from.
Accompanying drawing explanation
Fig. 1 is the flow chart of first embodiment of control method for frequency conversion air conditioner of the present invention；
Fig. 2 is the flow chart of second embodiment of control method for frequency conversion air conditioner of the present invention；
Fig. 3 is the structured flowchart that convertible frequency air-conditioner of the present invention controls one embodiment of device.
Detailed description of the invention
In order to make the purpose of the present invention, technical scheme and advantage clearer, below with reference to drawings and Examples, the present invention is described in further detail.
Referring to Fig. 1, this figure show the flow chart of first embodiment of control method for frequency conversion air conditioner of the present invention.In this embodiment, the compressor of convertible frequency air-conditioner is the compressor of changeable frequency.And, the control method of this embodiment be for realize under refrigerating of convertible frequency air conditioner operational mode low-power consumption, comfortable purpose of freezing and carry out.
As it is shown in figure 1, the flow process of method that convertible frequency air-conditioner is controlled by this embodiment comprises the steps:
Step 101: receive airconditioning control instruction.
Step 102: judge whether the control refrigeration that step 101 is received is refrigerated energy-saving comfortable cooling.If it has not, perform step 103；Otherwise, step 104 is performed.
User can be instructed by convertible frequency air-conditioner control panel input airconditioning control, convertible frequency air-conditioner remote controller input airconditioning control can also be passed through instruct, it is also possible to by convertible frequency air-conditioner control of intelligent terminal, as being provided with the smart mobile phone input airconditioning control instruction of convertible frequency air-conditioner control APP.No matter use which kind of command input device, be provided with the specified button that refrigerated energy-saving comfortable cooling is special the most on the input.User presses this button, it is possible to triggers convertible frequency air-conditioner and enters refrigerated energy-saving comfortable running mode, it is achieved the refrigeration control that the most energy-conservation but also homoiothermic is comfortable.Thus, user is facilitated independently to choose whether to perform refrigerated energy-saving comfort mode.If convertible frequency air-conditioner has received control, button is pressed, and judges it is that the button corresponding to refrigerated energy-saving comfortable cooling is pressed, and represents that user have input the comfortable instruction of refrigerated energy-saving, then enters the comfortable instruction of refrigerated energy-saving that step 104 starts.
Step 103: if step 102 judges that received airconditioning control instruction is not the comfortable instruction of refrigerated energy-saving, then according to original VFC Schema control convertible frequency air-conditioner.Then, going to step 101, the reception airconditioning control that keeps instructs and judges.
Original VFC pattern refers to the control model that convertible frequency air-conditioner is had before setting up refrigerated energy-saving comfort mode.Such as, original VFC pattern includes that the difference according to user's design temperature and indoor environment temperature carries out PID arithmetic, it is thus achieved that the actual motion frequency of compressor, controls compressor operating；Run including according to user's wind speed setting control room inner blower and outdoor fan；The aperture of electric expansion valve is controlled according to the degree of superheat, etc..
Step 104: if step 102 judges that received airconditioning control instruction is the comfortable instruction of refrigerated energy-saving, enter the comfortable control model of refrigerated energy-saving.First, detect real-time indoor environment temperature, make comparisons with setting indoor environment temperature threshold value.
Setting indoor environment temperature threshold value and dispatching from the factory at convertible frequency air-conditioner is to have been written in the memorizer of air-conditioner controller.General, this setting indoor environment temperature threshold value is the most modifiable for a user, because user is difficult to know the implication of this threshold value and function, if arbitrarily being revised by user, can increase energy consumption on the contrary, reducing refrigeration comfortableness.This threshold value can be carried out numerical value amendment by personnel after sale or other professionals by operating the upgrading of air-conditioner controller etc..And, this setting indoor environment temperature threshold value is that most people body-sensing is the most comfortable, will not feel a hottest temperature value, such as, be set as 28 DEG C.Indoor environment temperature refers to the temperature in convertible frequency air-conditioner local environment space in real time, can detect by being arranged on the temperature sensor of air-conditioning air inlet.Enter the comfortable control model of refrigerated energy-saving, detect real-time indoor environment temperature, and make the comparison of size with setting indoor environment temperature threshold value.
Step 105: judge that whether real-time indoor environment temperature is less than setting indoor environment temperature threshold value.If so, step 106 is performed；Otherwise, step 103 is performed.
If indoor environment temperature is not less than setting indoor environment temperature threshold value in real time, show that indoor environment temperature is higher, then perform step 103, according to original VFC Schema control convertible frequency air-conditioner, so that indoor temperature can rapid decrease.And, during according to original VFC Schema control convertible frequency air-conditioner, go to step 104, persistently detect real-time indoor environment temperature, and make comparisons with setting indoor environment temperature threshold value.
Step 106: if indoor environment temperature is less than setting indoor environment temperature threshold value in real time, shows that indoor environment temperature is low, may be close to design temperature.And, when close to design temperature, compressor will low-frequency operation.Now, the compressor target frequency gone out according to original VFC mode computation is obtained.
Step 107: judge that whether the compressor target frequency acquired in step 106 is less than the first setting compressor frequency.If so, step 108 is performed；If it is not, show that user's design temperature is relatively low, real-time indoor environment temperature remains above user's design temperature, needs cooling further, thus, go to step 103, according to original VFC Schema control convertible frequency air-conditioner, so that indoor temperature can rapid decrease.And, during according to original VFC Schema control convertible frequency air-conditioner, go to step 104, persistently detect real-time indoor environment temperature, and make comparisons with setting indoor environment temperature threshold value.
Step 108: if the compressor target frequency acquired in step 106 is less than the first setting compressor frequency, controls compressor and sets compressor frequency operation with first, meanwhile, control outdoor fan and run with setting speed.
When the compressor target frequency that Practical Calculation goes out is less than the first setting compressor frequency, controls compressor and carry out low frequency limit frequency so that it is compressor low-limit frequency is the first setting compressor frequency rather than the compressor target frequency operation gone out according to Practical Calculation.
Wherein, first to set compressor frequency be that to dispatch from the factory at convertible frequency air-conditioner be to have been written into a fixed frequency in the memorizer of air-conditioner controller, and this frequency is the value obtained through theoretical research and a large amount of comprehensive experiment by research staff, it is to take into account low energy consumption and the reasonable frequency value of refrigeration comfortableness.Such as, this first sets compressor frequency as 15Hz.When the compressor target frequency gone out according to original VFC mode computation is less than 15Hz, show that real-time indoor environment temperature is close to user's design temperature, it is not necessary to more refrigerating capacity.But, run according to this frequency less than 15Hz if controlling compressor, due to underfrequency, its refrigerating capacity is the most weak, even can not play any refrigeration.Now, although compressor is low-frequency operation, still consuming certain electricity, and its refrigerating capacity is the most weak, thus cause almost one the pure power consumption of compressor running now and do not have the process of refrigeration, from the point of view of Energy Efficiency Ratio angle, power consumption is big.Moreover, the most weak due to compressor output, it is impossible to maintain stablizing of indoor temperature so that fluctuations in indoor temperature is big, temperature affects comfortableness after rising.And after temperature rises, need control compressor again to operate in a high frequency and lower the temperature, therefore, from the point of view of whole process of refrigerastion, power consumption is big.
And in this embodiment, when the compressor target frequency that Practical Calculation goes out is less than the first setting compressor frequency, controls compressor and carry out low frequency limit frequency.Compressor runs under this first setting compressor frequency, it is possible to produce the refrigerating capacity maintaining indoor temperature stable so that indoor temperature is stable in user's design temperature, raising comfortableness.Being additionally, since indoor temperature stable, the cycle that compressor operates in a high frequency again lengthens.Thus, from Energy Efficiency Ratio, in whole process of refrigerastion, compressor power consumption is little, thus reduces the energy consumption of air conditioner refrigerating.
And, in this limit frequency running, control outdoor fan and run with fixing setting speed, rather than according to original VFC mode operation, the balance of whole refrigeration system can be kept when compressor limit frequency, stablize indoor temperature further, improve the comfortableness of indoor temperature.Same, setting speed is that to dispatch from the factory at convertible frequency air-conditioner be to have been written into a fixed value in the memorizer of air-conditioner controller, and this value is the value obtained through theoretical research and a large amount of comprehensive experiment by research staff.
During performing step 108, still continuously carry out detection and the decision process of step 104.
In a word, in refrigerating of convertible frequency air conditioner running, constantly perform step 101, step 102, step 104, step 105 and the detection of step 107 and decision process, meet which condition and be put into the control of which condition, just exit corresponding control when being unsatisfactory for certain condition.
Referring to Fig. 2, this figure show the flow chart of second embodiment of control method for frequency conversion air conditioner of the present invention.In this embodiment, the compressor of convertible frequency air-conditioner be the throttle part in the compressor of changeable frequency, and refrigerating of convertible frequency air conditioner blood circulation be the controlled electric expansion valve of aperture.And, the control method of this embodiment be for realize under refrigerating of convertible frequency air conditioner operational mode low-power consumption, comfortable purpose of freezing and carry out.
As in figure 2 it is shown, the flow process of method that convertible frequency air-conditioner is controlled by this embodiment comprises the steps:
Step 201: receive airconditioning control instruction.
Step 202: judge whether the control refrigeration that step 201 is received is refrigerated energy-saving comfortable cooling.If it has not, perform step 203；Otherwise, step 204 is performed.
Step 203: if step 202 judges that received airconditioning control instruction is not the comfortable instruction of refrigerated energy-saving, then according to original VFC Schema control convertible frequency air-conditioner.Then, going to step 201, the reception airconditioning control that keeps instructs and judges.
Step 204: if step 202 judges that received airconditioning control instruction is the comfortable instruction of refrigerated energy-saving, enter the comfortable control model of refrigerated energy-saving.First, detect real-time indoor environment temperature, make comparisons with setting indoor environment temperature threshold value.
Step 205: judge that whether real-time indoor environment temperature is less than setting indoor environment temperature threshold value.If so, step 206 is performed；Otherwise, step 203 is performed.
Step 206: if indoor environment temperature is less than setting indoor environment temperature threshold value in real time, obtain the compressor target frequency gone out according to original VFC mode computation.
Step 207: judge that whether the compressor target frequency acquired in step 206 is less than the first setting compressor frequency.If so, step 209 is performed；Otherwise, step 208 is performed.
Step 208: if step 206 judges that compressor target frequency sets compressor frequency not less than first, then judge that whether compressor target frequency is less than the second setting compressor frequency.If so, step 210 is performed；Otherwise, go to step 203, still continuously carry out detection and the decision process of step 204.
Step 209: if the compressor target frequency acquired in step 206 is less than the first setting compressor frequency, controls compressor and sets compressor frequency operation with first, meanwhile, control outdoor fan and run with setting speed.Then, step 210 is performed.
The process that implements, principle and the purpose of above-mentioned steps 201 to step 207 and step 209 are similar to the corresponding step of Fig. 1 embodiment, are no longer specifically described, and details refer to the description of Fig. 1.
By step 209, unlike Fig. 1 embodiment, this Fig. 2 embodiment adds step 208 and compressor target frequency and second is set the process that compressor frequency is made comparisons.Wherein, second sets compressor frequency than the first setting compressor frequency more greatly, and such as, first sets compressor frequency as 15Hz, then second set compressor frequency as 20Hz.And, compressor frequency is set similar with first, second to set compressor frequency be also that to dispatch from the factory at convertible frequency air-conditioner be to have been written into a fixed frequency in the memorizer of air-conditioner controller for this, and this frequency is the value obtained through theoretical research and a large amount of comprehensive experiment by research staff, it is to take into account low energy consumption and the reasonable frequency value of refrigeration comfortableness.
Step 210: this step is transferred by step 208 and step 209, namely, as long as the compressor target frequency that step 206 goes out according to original VFC mode computation sets compressor frequency less than second, then control the aperture of electric expansion valve of convertible frequency air-conditioner for setting aperture.
Wherein, setting aperture is that to dispatch from the factory at convertible frequency air-conditioner be to have been written into a fixed value in the memorizer of air-conditioner controller, and this value is the value obtained through theoretical research and a large amount of comprehensive experiment by research staff.Such as, first set compressor frequency as 15Hz, second set compressor frequency as 20Hz time, set aperture as 100 steps.When the compressor target frequency gone out according to original VFC mode computation is less than the second setting compressor frequency, according still further to original VFC pattern, the aperture of electric expansion valve is not controlled, but the aperture controlling electric expansion valve is fixed.And, when compressor frequency is less than the second setting compressor frequency, this setting aperture is less than the aperture calculated according to original VFC pattern, because original control mode is the degree of superheat adjusts valve, more preferably can not realize refrigeration by control valve aperture at low frequency.And this embodiment controls electric expansion valve for fixing aperture when compressor low-frequency operation, it is possible to obtain suitable refrigerating capacity and make air conditioning exhausting proper temperature.
Step 211: judge compressor runs whether arrived for the first setting time with the actual motion frequency setting compressor frequency less than second.If so, step 212 is performed；Otherwise, timing is continued, until it reaches first sets the time.
Step 212: if compressor runs with the actual motion frequency setting compressor frequency less than second arrived for the first setting time, the actual motion frequency controlling compressor rises to the 3rd setting compressor frequency, and continuous service second sets the time.
Step 213: when compressor sets compressor frequency operation arrival the second setting time according to the 3rd, then return to the reason frequency before rising and run.
Perform above-mentioned steps 211 to step 213 purpose be in order to compressor low frequency and continuous operating carry out protect control, it is to avoid the long-time low-frequency operation of compressor and damage compressor.Wherein, it is all that to dispatch from the factory at convertible frequency air-conditioner be to have been written into a fixed value in the memorizer of air-conditioner controller that first setting time, the second setting time and the 3rd set compressor frequency, and this value is the value obtained through theoretical research and a large amount of comprehensive experiment by research staff.Such as, first sets the time as 30min, and second sets the time as 10s, and the 3rd sets compressor frequency as 30Hz.After compressor continuously runs 30min with the actual motion frequency setting compressor frequency 20Hz less than second, the running frequency of compressor is forced to rise to 30Hz, and continuous service 10s.Then, the original frequency then before recovery extremely rising.
During performing above-mentioned compressor limit frequency and low-frequency operation protection, still continuously carry out detection and the decision process of step 204.
Certainly, in refrigerating of convertible frequency air conditioner running, still can constantly perform detection and the decision process of step 201, step 202, step 204, step 205, step 207 and step 208, meet which condition and be put into the control of which condition, just exit corresponding control when being unsatisfactory for certain condition.
No matter it is Fig. 1 embodiment or Fig. 2 embodiment, when entering refrigerated energy-saving comfortable control process, control similar with existing convertible frequency air-conditioner, need to pre-set airconditioning control parameter, such as user's design temperature, wind speed setting, air supply direction etc., refrigerated energy-saving comfortable control process will be controlled according to these airconditioning control Parameters on Compressive machine, indoor fan, outdoor fan, wind deflector etc., meet user's request.The comfortable control of refrigerated energy-saving is as an optimal control process, for a concrete convertible frequency air-conditioner, there is mating of an optimal control parameter and control performance.In order to provide Optimal Control performance, before air-conditioning dispatches from the factory, the optimization control parameter realizing optimum control performance of this air-conditioning it is prefixed in it stores, this optimization control parameter airconditioning control parameter by default, when user uses air-conditioning and have selected the comfortable control model of refrigerated energy-saving, Air-Conditioning Control Panel or air cnoditioner remote controller display screen demonstrate acquiescence airconditioning control parameter, understands optimal control parameter for user and control benchmark.
But, for meeting the individual demand of user, acquiescence airconditioning control parameter is not the most modifiable, and user can reset controlling parameter using the default control parameters of display as basis reference according to self-demand.
Now, receive airconditioning control refrigeration for refrigerated energy-saving comfortable cooling and show acquiescence airconditioning control parameter after, if the airconditioning control parameter reset being detected within the time of setting, then perform refrigerated energy-saving comfortable control process according to the airconditioning control parameter reset.And if within the time of setting, be not detected by the airconditioning control parameter reset, then will according to submerge airconditioning control parameter perform refrigerated energy-saving comfortable control process.
Referring to Fig. 3, this figure show convertible frequency air-conditioner of the present invention and controls the structured flowchart of one embodiment of device.
As it is shown on figure 3, this embodiment convertible frequency air-conditioner controls device includes refrigerated energy-saving comfortable cooling receiver module 31 and the comfortable control module of refrigerated energy-saving 32.Wherein, refrigerated energy-saving comfortable cooling receiver module 31 is used for receiving the comfortable instruction of refrigerated energy-saving, and starts the comfortable control module of refrigerated energy-saving 32.And the comfortable control module of refrigerated energy-saving 32 is as the nucleus module of control device, include indoor environment temperature detection and comparing unit 321 and control unit 322.Wherein, indoor environment temperature detection and comparing unit 321 are used for detecting real-time indoor environment temperature, and make comparisons with setting indoor environment temperature threshold value, export comparative result；And convertible frequency air-conditioner is controlled by the comparative result that control unit 322 is used for according to indoor environment temperature detection and comparing unit 321 are exported, and according to Fig. 1 and Fig. 2 method flow, convertible frequency air-conditioner is controlled.In addition, the comfortable control module of refrigerated energy-saving 32 can also include airconditioning control parameter processing unit 323, for showing the acquiescence airconditioning control parameter of the comfortable control of refrigerated energy-saving, whether detection exists the airconditioning control parameter reset within the time of setting, the airconditioning control parameter that resets described in receiving in the presence of, and export acquiescence airconditioning control parameter or the airconditioning control parameter that resets to control unit 322.
The convertible frequency air-conditioner control device with said structure is applied in convertible frequency air-conditioner, it is possible to realize energy-conservation, comfortable refrigeration control function.
Above example is only in order to illustrate technical scheme, rather than is limited；Although the present invention being described in detail with reference to previous embodiment, for the person of ordinary skill of the art, still the technical scheme described in previous embodiment can be modified, or wherein portion of techniques feature is carried out equivalent；And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of claimed technical solution of the invention.
Claims (10)
1. a control method for frequency conversion air conditioner, it is characterised in that described method includes:
When the airconditioning control instruction instruction comfortable for refrigerated energy-saving received, perform following refrigerated energy-saving comfortable control process:
Detect real-time indoor environment temperature, and make comparisons with setting indoor environment temperature threshold value；
If described real-time indoor environment temperature is not less than described setting indoor environment temperature threshold value, control convertible frequency air-conditioner according to convertible frequency air-conditioner original VFC mode operation；
If described real-time indoor environment temperature is less than described setting indoor environment temperature threshold value, obtain the compressor target frequency gone out according to described original VFC mode computation, it is judged that whether described compressor target frequency is less than the first setting compressor frequency；If so, control described compressor and set compressor frequency operation with described first, control outdoor fan and run with setting speed；If it is not, control described compressor and described outdoor fan according to described original VFC mode operation.
Method the most according to claim 1, it is characterized in that, during the comfortable control of described refrigerated energy-saving, if described real-time indoor environment temperature is less than described setting indoor environment temperature threshold value, and the actual motion frequency of described compressor is less than the second setting compressor frequency, the aperture of the electric expansion valve controlling convertible frequency air-conditioner is fixed as setting aperture, otherwise, according to the aperture of electronic valve described in described original VFC Schema control；Described second sets compressor frequency sets compressor frequency more than described first.
Method the most according to claim 2, it is characterized in that, during the comfortable control of described refrigerated energy-saving, if described real-time indoor environment temperature is less than described setting indoor environment temperature threshold value, and described compressor ran for the first setting time with the actual motion frequency setting compressor frequency less than described second, control the actual motion frequency of described compressor and rise to the 3rd setting compressor frequency and continuous service second sets the time, then control the original frequency before compressor rises with frequency and run.
The most according to the method in any one of claims 1 to 3, it is characterised in that when the airconditioning control instruction instruction comfortable for refrigerated energy-saving received, the acquiescence airconditioning control parameter of the display comfortable control of refrigerated energy-saving；If being not detected by the airconditioning control parameter reset within the time of setting,
Described refrigerated energy-saving comfortable control process is performed according to described acquiescence airconditioning control parameter；If the airconditioning control parameter reset being detected in described setting arranges the time, perform described refrigerated energy-saving comfortable control process according to the described airconditioning control parameter reset.
Method the most according to claim 1, it is characterised in that the comfortable instruction of described refrigerated energy-saving is sent by the specified button being arranged on convertible frequency air-conditioner control panel or convertible frequency air-conditioner remote controller or convertible frequency air-conditioner control of intelligent terminal.
6. a convertible frequency air-conditioner controls device, it is characterised in that described device includes:
Refrigerated energy-saving comfortable command reception module, is used for receiving the comfortable instruction of refrigerated energy-saving, and starts the comfortable control module of refrigerated energy-saving；
The comfortable control module of refrigerated energy-saving includes:
Indoor environment temperature detection and comparing unit, be used for detecting real-time indoor environment temperature, and make comparisons with setting indoor environment temperature threshold value, export comparative result；
Control unit, for controlling convertible frequency air-conditioner when described indoor environment temperature is not less than described setting indoor environment temperature threshold value according to convertible frequency air-conditioner original VFC mode operation, and at described real-time indoor environment temperature less than described setting indoor environment temperature threshold value, obtain the compressor target frequency gone out according to described original VFC mode computation, it is judged that whether described compressor target frequency is less than the first setting compressor frequency；If so, control described compressor and set compressor frequency operation with described first, control outdoor fan and run with setting speed, if it is not, control described compressor and described outdoor fan according to described original VFC mode operation.
Device the most according to claim 6, it is characterized in that, described control unit is additionally operable at described real-time indoor environment temperature less than described setting indoor environment temperature threshold value, and the actual motion frequency of described compressor less than the second setting compressor frequency time, control the aperture of electric expansion valve of convertible frequency air-conditioner for setting aperture, otherwise, according to the aperture of electronic valve described in described original VFC Schema control；And described second set compressor frequency more than described first set compressor frequency.
Device the most according to claim 7, it is characterized in that, described control unit is additionally operable to described real-time indoor environment temperature less than described setting indoor environment temperature threshold value, and described compressor is when running for the first setting time with the actual motion frequency setting compressor frequency less than described second, control the actual motion frequency of described compressor and rise to the 3rd setting compressor frequency and continuous service second sets the time, then control the original frequency before compressor rises with frequency and run.
9. according to the device according to any one of claim 6 to 8, it is characterised in that the comfortable control module of described refrigerated energy-saving also includes:
Airconditioning control parameter processing unit, for showing the acquiescence airconditioning control parameter of the comfortable control of refrigerated energy-saving, whether detection exists the airconditioning control parameter reset within the time of setting, the airconditioning control parameter that resets described in receiving in the presence of, and export described acquiescence airconditioning control parameter or described in the airconditioning control parameter that resets；
Acquiescence airconditioning control parameter that described control unit exports according to described airconditioning control parameter processing unit or described in the airconditioning control parameter that resets perform control.
10. a convertible frequency air-conditioner, it is characterised in that described convertible frequency air-conditioner has the convertible frequency air-conditioner according to any one of the claims 6 to 9 and controls device.
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