CN1987260A - Air conditioner and control method for air conditioner - Google Patents
Air conditioner and control method for air conditioner Download PDFInfo
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- CN1987260A CN1987260A CN 200510135053 CN200510135053A CN1987260A CN 1987260 A CN1987260 A CN 1987260A CN 200510135053 CN200510135053 CN 200510135053 CN 200510135053 A CN200510135053 A CN 200510135053A CN 1987260 A CN1987260 A CN 1987260A
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Abstract
An air conditioner has an outdoor set with compressor, an indoor set with fan, heat exchanger, room temp sensor and heater controlled by controller, a controller, and a temp setting-up unit. Its control method features that when the air conditioner is running in heating mode and the sensed indoor temp is higher than the temp setting by a certain value, the compressor is stopped and the heater is turned on.
Description
Technical field
The present invention relates to the control method of air-conditioner and air-conditioner, be particularly related to by the mode of the auxiliary heating of heater and slow down the speed that room temperature descends, avoid the too frequent start and stop of compressor, prolong the service life of compressor, and the air-conditioner of raising user's comfort and the control method of air-conditioner.
Background technology
Existing fixed formula indoor machine of air-conditioner frequently is by heat exchanger, pressure fan, pressure fan motor and accommodate with the shell of upper-part etc. and form.In addition, by modes such as interior sensor, design temperatures, carry out the control of volume of traffic according to detected room temperature.
For example, when greenhouse moves, as shown in Figure 5, after the starting of air conditioner, compressor and pressure fan start simultaneously, and when indoor temperature rises to " ceiling temperature " than the high uniform temperature of design temperature (T21), control device stops compressor and pressure fan simultaneously.After compressor stops, under the influence of ambient temperature and ventilation volume, indoor temperature descends rapidly, when room temperature is reduced to " lower limit temperature " than the low uniform temperature of design temperature (T22), control device starts compressor once more, and starts pressure fan at the appointed time.
But there is the problem of the following stated in existing air-conditioner.
At first, after compressor stopped, owing to there is not heat to carry to conditioned space, under the influence of ambient temperature and ventilation volume, indoor temperature descended rapidly, influences user's environment temperature comfortableness.
In addition, after room temperature sharply descended, and drops to below the design temperature, compressor started once more, and when such circulation was carried out repeatedly, the start and stop of compressor were carried out continually, cause the compressor excess load easily, reduce its service life.
Summary of the invention
In order to address the above problem, the purpose of this invention is to provide the control method of a kind of air-conditioner and air-conditioner.
Air-conditioner of the present invention, at least have: the off-premises station that is provided with compressor, be provided with the indoor set of pressure fan, heat exchanger, temperature sensor, and the control device of controlling compressor, pressure fan, it is characterized in that, indoor set also is provided with heater, heater is controlled by control device, this air-conditioner also has the temperature setting device of design temperature, when greenhouse turned round, when the detected indoor temperature of temperature sensor reached temperature than the high uniform temperature of design temperature, control device carried out the first interlock control operation, compressor is stopped, and start heater.
As mentioned above, air-conditioner of the present invention stops heating room air in back by the heater of assisting heating at compressor, therefore can avoid the quick decline of room temperature, improve indoor comfort level, simultaneously, prevent the frequent start-stop of compressor, prolong the service life of compressor.
Compressor in the air-conditioner of the present invention can be to decide frequency formula compressor.
In the air-conditioner of the present invention, the above-mentioned first interlock control operation can be to stop compressor earlier, and the back starts heater at the appointed time, also can be to start heater when stopping compressor.
The present invention has reached by the above-mentioned first interlock control operation and has started the purpose that heater is assisted heating when compressor stops, thus, avoid the quick decline of room temperature, prevented the frequent start-stop of compressor, prolong the service life of compressor, and improved user's comfort.In addition, compressor is in halted state during owing to the heater running, therefore can prevent the phenomenon that input current is excessive.
In addition, air-conditioner of the present invention is under the state of heater running, and below the air output the when air output of pressure fan is controlled at compressor operation, at this moment, the heating quantitative change is big, can relax the speed that room temperature descends, and guarantees that room temperature can not exceed design temperature significantly.
When the detected indoor temperature of temperature sensor reached temperature than the low uniform temperature of design temperature, described control device carried out the second interlock control operation, and control device stops the running of heater earlier, starts compressor then.Like this, the air-conditioning effect of air-conditioner not only can be reached, the excessive of electric current can also be suppressed.
In addition, between above-mentioned first interlock control operation to the second interlock control operation, control device control heater hold mode.By such operation, underspeeding of the room temperature in the time of can relaxing compressor and stop to improve user's comfort, can prevent the start and stop of high frequent simultaneously, prolongs the service life of compressor effectively.
Relevant above-mentioned first interlock " stipulated time " in " stop compressor earlier, the back starts heater at the appointed time ", can preestablish during control operation.In addition, air-conditioner of the present invention can also have the outer air-temperature sensor that detects outside air temperature, and control device can be according to the detected outdoor temperature of outer air-temperature sensor, and " stipulated time " is somebody's turn to do in decision.Thus, the underspeeding of the room temperature in the time of can relaxing compressor and stop, and guarantee that room temperature can not exceed design temperature significantly, can reach the effect of energy efficient simultaneously.
In sum, air-conditioner provided by the invention, by running heater when compressor stops, the rate of temperature fall of the room temperature in the time of can reducing compressor and stop to improve user's comfort, prevents the start and stop of high frequent, prolong the service life of compressor, simultaneously, can also prevent the excessive of electric current by the first interlock control operation.Further, by regulating the time of heater running, can reach the effect of energy efficient.
On the other hand, according to another viewpoint of the present invention, the invention provides a kind of control method of air-conditioner, it is characterized in that, air-conditioner has at least: the off-premises station that is provided with compressor, be provided with pressure fan, heater, heat exchanger, the indoor set of temperature sensor, and control compressor, the control device of the work of pressure fan and heater, this air-conditioner also has the temperature setting device of design temperature, when greenhouse turned round, when the detected indoor temperature of temperature sensor reached temperature than the high uniform temperature of design temperature, control device carried out the first interlock control operation, compressor is stopped, and start heater.
So,, can avoid the quick decline of room temperature, improve indoor comfort level, simultaneously, prevent the frequent start-stop of compressor, prolong the service life of compressor by when compressor stops, assisting heating by heater.
In addition, in the control method of air-conditioner of the present invention, the described first interlock control operation can be to stop compressor earlier, and the back starts heater at the appointed time; Also can be to start heater when stopping compressor.Like this, not only can assist heating by heater when compressor stops, avoiding the quick decline of room temperature, prevent the frequent start-stop of compressor simultaneously, can also prevent the excessive of electric current the service life that prolongs compressor.
In addition, in the control method of air-conditioner of the present invention, under the state of heater running, below the air output when air output of pressure fan is controlled at compressor operation, at this moment, the heating quantitative change is big, can relax the speed that room temperature descends, guarantee that room temperature can not exceed design temperature significantly.
And, in the control method of air-conditioner of the present invention, when the detected indoor temperature of temperature sensor reached temperature than the low uniform temperature of design temperature, described control device carried out the second interlock control operation, control device stops the running of heater earlier, starts compressor then.Like this, the air-conditioning effect of air-conditioner not only can be reached, the excessive of electric current can also be suppressed.
In addition, in the control method of air-conditioner of the present invention, between above-mentioned first interlock control operation to the second interlock control operation, control device control heater hold mode.By such operation, underspeeding of the room temperature in the time of can relaxing compressor and stop to improve user's comfort, can prevent the start and stop of high frequent simultaneously, prolongs the service life of compressor effectively.
In addition, in the control method of air-conditioner of the present invention, between above-mentioned first interlock control operation to the second interlock control operation, control device control heater hold mode.So, underspeeding of the room temperature in the time of can relaxing compressor and stop to improve user's comfort, can prevent the start and stop of high frequent simultaneously, prolongs the service life of compressor effectively.
Relevant above-mentioned first interlock " stipulated time " in " stop compressor earlier, the back starts heater at the appointed time ", can preestablish during control operation.In addition, air-conditioner of the present invention can also have the outer air-temperature sensor that detects outside air temperature, and control device can be according to the detected outdoor temperature of outer air-temperature sensor, and " stipulated time " is somebody's turn to do in decision.Thus, the underspeeding of the room temperature in the time of can relaxing compressor and stop, and guarantee that room temperature can not exceed design temperature significantly, can reach the effect of energy efficient simultaneously.
In sum, the control method of air-conditioner provided by the invention, by running heater when compressor stops, the rate of temperature fall of the room temperature in the time of can reducing compressor and stop, improve user's comfort, avoid the frequent start-stop of compressor simultaneously, prolong the service life of compressor, can also prevent the excessive of electric current by the first interlock control operation.Further, by regulating the time of heater running, can reach the effect of energy efficient.
Description of drawings
Fig. 1 is the schematic diagram of the air-conditioner of a routine embodiment of the present invention.
When Fig. 2 is the air-conditioner running of a routine embodiment of the present invention, the start and stop state and the indoor temperature figure over time of expression air-conditioning critical piece.
Fig. 3 is the flow chart that the control device of the air-conditioner of an expression routine embodiment of the present invention shown in Figure 2 is controlled the critical piece of air-conditioner.
When Fig. 4 is the air-conditioner running of an other routine embodiment of the present invention, the start and stop state and the indoor temperature figure over time of expression air-conditioning critical piece.
When Fig. 5 is the air-conditioner running of existing invention, the start and stop state and the indoor temperature figure over time of expression air-conditioning critical piece.
The specific embodiment
Describe the specific embodiment of the present invention below with reference to the accompanying drawings in detail.To the identical or corresponding identical symbol of part mark, omit repeat specification in the accompanying drawing.
Fig. 1 is the schematic diagram of the air-conditioner of a routine embodiment of the present invention.
Air-conditioner of the present invention has indoor set 1.Indoor set 1 has heater 13, the temperature sensor 14, the control device 15 that detect indoor temperature and the shell that holds these of the air-supply of pressure fan 11, heat exchanger 12, heating indoor set.Air-conditioner of the present invention also has off-premises station 2, and off-premises station 2 has compressor 21 at least.In addition, the present invention also has the temperature setting device (not shown) of design temperature.
And air-conditioner of the present invention can also possess the outer air-temperature sensor of the temperature outside the sensing chamber again.Relevant effect of being somebody's turn to do outer air-temperature sensor will describe in detail in the specific embodiment below.
Air-conditioner of the present invention is when greenhouse turns round, and control device 15 is controlled compressor 21, pressure fan 11 and heater 13 according to design temperature and the detected indoor temperature of temperature sensor, reaches the air-conditioning effect with this.Concrete control mode will describe in detail below.
Fig. 2 is start and stop state and the indoor temperature figure over time that the air-conditioner critical piece is represented the time in the air-conditioner running of a routine embodiment of the present invention.The mode of the first interlock control operation that Fig. 2 represents is, when the detected indoor temperature of temperature sensor reaches temperature than the high uniform temperature of design temperature, stop compressor earlier, and starting heater through behind the stipulated time t1, pressure fan keeps the state of startup.
Among Fig. 2, the starting state of " ON " expression compressor, indoor blower and heater, the halted state of " OFF " expression compressor, indoor blower and heater." design temperature " refers to the temperature that the user sets, the temperature of " ceiling temperature " expression when indoor temperature reaches than the high uniform temperature of design temperature, and " lower limit temperature " expression reaches temperature when hanging down uniform temperature than design temperature when indoor temperature." ceiling temperature " is that the inventor is predefined when making air-conditioner with the difference of poor and " lower limit temperature " and " design temperature " of " design temperature ".
As can be seen from Figure 2, during the greenhouse running, after starting of air conditioner, compressor and indoor blower start and entry into service simultaneously, when arriving T11 during the moment, indoor temperature reaches ceiling temperature, and controller carries out the first interlock control operation, promptly, control device stops compressor, and at the appointed time t1 (for example, 10s) second the back starts and makes heater starting, at this moment, pressure fan keeps operating condition.When arriving T12 during the moment, indoor temperature arrival lower limit temperature, controller carry out the second interlock control operation, that is, heater and pressure fan are stopped simultaneously, and (for example, 10s) are starting pressure fan behind the back elder generation startup compressor through stipulated time t2.When indoor temperature reaches ceiling temperature once more (T13), controller carries out the first interlock control operation once more.Like this, when air-conditioner moved at greenhouse, control device carried out the first interlock control operation and the second interlock control operation repeatedly.That is to say that air-conditioner carries out the start and stop of compressor, the start and stop of control pressure fan and the air output of control pressure fan, the start and stop of control heater according to the variation of indoor temperature by the control of control device, reaches the air-conditioning effect with this.
In the first interlock control operation, so-called " stipulated time t1 " can preestablish, and also can be regulated by control device according to the outdoor temperature of measuring at the outer air-temperature sensor of outdoor setting.For example, when the difference of outdoor temperature and design temperature was big, " stipulated time t1 " can be shorter, and when the difference of outdoor temperature and design temperature than hour, " stipulated time t1 " can be longer.So reasonable " the stipulated time t1 " that regulates, can either keep indoor temperature and can not reduce significantly also and can not make indoor temperature might surpass ceiling temperature, thereby in the comfort level that guarantees the user, also can suitably save the energy because of the too early startup of heater.
In the second interlock control operation, so-called " stipulated time t2 " is the predefined time.As long as the setting of " stipulated time t2 " can suppress electric current excessive in the air-conditioner, and makes indoor temperature can not exceed design temperature significantly, just there is no particular limitation.
In addition, in the present embodiment, after heater starting, below the air output in the time of can making the air output of pressure fan be controlled at compressor operating.At this moment, the temperature that can guarantee the wind that air-conditioner blows out can be not low excessively, and can also make the pressure fan air-supply that heater is made full use of, and can more effectively relax the speed that room temperature descends thus, guarantee that room temperature can not exceed design temperature significantly, can reach the effect of the reasonable distribution energy.
In addition, though before starting compressor, stop heater and pressure fan simultaneously in the present embodiment, also can stop heater and pressure fan constantly in difference.What need only them stops the moment of the moment early than compressor start, can prevent the excessive of air-conditioner electric current, and make indoor temperature can not exceed design temperature significantly, just has no particular limits.
As can be seen from Figure 2, when greenhouse is controlled, during except initial startup air-conditioner, the action of compressor start always stopping indoor blower and stopping to carry out under the state of heater, so just can prevent the excessive of electric current effectively.Simultaneously,, can prevent that the room temperature when compressor stops from sharply reducing, improve user's comfort, and avoid the service life of the too frequent start and stop of compressor, prolongation compressor because air-conditioner is assisted heating by heater.
According to implementation method of the present invention, in the warm state of the system of air-conditioner, when compressor shuts down, because the running of heater, make the rate of temperature fall (as (T12 one T11) of Fig. 2) of room temperature compare (as (T22-T21) of Fig. 5) with air-conditioner in the past, the former is more slow.
Fig. 3 is the flow chart that the control device of the air-conditioner of a routine embodiment of the present invention is controlled each parts of air-conditioner, the embodiment that this flow chart is represented corresponding to Fig. 2.
As can be seen from Figure 3, during greenhouse control, start after the air-conditioner compressor starts running, running along with compressor, indoor temperature raises gradually, and when indoor temperature reached ceiling temperature, controller carried out the first interlock control operation, control device stops compressor, behind process stipulated time t1, control device starts heater, and the air output of control pressure fan.When indoor temperature reached lower limit temperature, controller carried out the second interlock control operation, and control device stops heater and pressure fan, and behind process stipulated time t2, control device starts compressor once more, starts pressure fan then.Like this, air-conditioner can carry out the first interlock control operation and the second interlock control operation repeatedly.
When Fig. 4 is the air-conditioner running of another routine embodiment of the present invention, the start and stop state and the indoor temperature figure over time of the critical piece of expression air-conditioner.The first interlock control operation that Fig. 4 represents is to start heater when stopping compressor, the state that the pressure fan maintenance starts.
As can be seen from Figure 4, during the greenhouse running, after starting of air conditioner, compressor and indoor blower start and entry into service simultaneously, when arriving T ' during 11 moment, indoor temperature reaches ceiling temperature, controller carries out the first interlock control operation, that is, control device stops compressor, make heater starting simultaneously, below the air output when making the air output of pressure fan be compressor operation.When indoor temperature arrives lower limit temperature (T ' 12), controller carries out the second interlock control operation, that is, control device stops heater and pressure fan, and through after the stipulated time t ' 2, starts compressor once more.When indoor temperature reaches ceiling temperature once more (T ' 13), controller carries out the first interlock control operation once more.Like this, control device by the start and stop of control compressor, the start and stop of control pressure fan and the air output of control pressure fan, the start and stop of control heater, reaches the purpose of control indoor temperature according to the variation of indoor temperature.
Wherein, be to add heat below the air quantity when control device is controlled at compressor operation with the air quantity of pressure fan after starting heater in order to increase, make air-conditioner can more effectively relax the speed that room temperature descends, guarantee that room temperature can not exceed design temperature significantly.
Second the interlock control operation in, so-called " stipulated time t ' 2 " be the predefined time (for example, 10s).As long as the setting of " stipulated time t ' 2 " can suppress electric current excessive in the air-conditioner, and makes indoor temperature can not exceed design temperature significantly, just there is no particular limitation.
As can be seen from Figure 4, when greenhouse is controlled, during except initial startup air-conditioner, the action of compressor start always after stopping indoor blower, with heater stop to carry out simultaneously.So just can prevent electric current excessive of air-conditioner.
According to implementation method of the present invention, in the warm state of the system of air-conditioner, when compressor shuts down, because the running of heater, make the rate of temperature fall (as (T ' 12-T ' 11) of Fig. 4) of room temperature compare (as (T22-T21) of Fig. 5) with air-conditioner in the past, the former is more slow.
In addition, heater of the present invention is an accessory, so there is no need painstakingly to strengthen the power of heater running again.
In sum, air-conditioner of the present invention is when greenhouse turns round, first and the second interlock control operation by control device, even can regulate the start and stop of compressor and heater, and running heater when compressor stops, reach the rate of temperature fall that reduces conditioned space with this, improve the purpose of usage space comfort.Because the present invention's heater that when compressor stops, turn round, can avoid the frequent start-stop of compressor, in the service life of prolongation compressor, simultaneously, can also effectively prevent the excessive of electric current by combined operation.
Below in conjunction with the accompanying drawings embodiments of the invention are had been described in detail, but above-mentioned explanation cannot be understood that it is limitation of the present invention, and is apparent, the present invention can carry out suitable distortion and improvement as required, and these distortion and improvement all should be considered as belonging in the scope of the present invention.
Claims (15)
1. air-conditioner has at least: is provided with the off-premises station of compressor, is provided with the indoor set of pressure fan, heat exchanger, temperature sensor, and the control device of controlling described compressor, described pressure fan, it is characterized in that,
Indoor set also is provided with heater, and this heater is controlled by described control device,
Described air-conditioner also has the temperature setting device of design temperature,
When greenhouse turns round, and when the detected indoor temperature of described temperature sensor reached temperature than the high uniform temperature of design temperature, described control device carried out the first interlock control operation, described compressor is stopped, and start described heater.
2. the described air-conditioner of claim 1 is characterized in that,
Described compressor is to decide frequency formula compressor.
3. the described air-conditioner of claim 1 is characterized in that,
The described first interlock control operation is to stop described compressor earlier, the described heater of back startup at the appointed time.
4. the described air-conditioner of claim 1 is characterized in that,
The described first interlock control operation is to start described heater when stopping described compressor.
5. the described air-conditioner of claim 1 is characterized in that,
Under the state of described heater running, below the air output the when air output of described pressure fan is controlled at described compressor operation.
6. the described air-conditioner of claim 1 is characterized in that,
When the detected indoor temperature of described temperature sensor reached temperature than the low uniform temperature of design temperature, described control device carried out the second interlock control operation, and described control device stops the running of described heater earlier, starts described compressor then.
7. the described air-conditioner of claim 6 is characterized in that,
To between the described second interlock control operation, described control device is controlled described heater and is kept operating condition in the described first interlock control operation.
8. the described air-conditioner of claim 3 is characterized in that,
Described air-conditioner also has the outer air-temperature sensor that detects outside air temperature, and described control device determines the described stipulated time according to being somebody's turn to do the detected outdoor temperature of outer air-temperature sensor.
9. the control method of an air-conditioner is characterized in that,
Described air-conditioner has at least: is provided with the off-premises station of compressor, is provided with the indoor set of pressure fan, heater, heat exchanger, temperature sensor, and the control device of the work of control compressor, pressure fan and heater, the temperature setting device of design temperature,
When greenhouse turned round, when the detected indoor temperature of described temperature sensor reached temperature than the high uniform temperature of design temperature, described control device carried out the first interlock control operation, described compressor is stopped, and start described heater.
10. the control method of the described air-conditioner of claim 9 is characterized in that,
The described first interlock control operation is to stop described compressor earlier, the described heater of back startup at the appointed time.
11. the control method of the described air-conditioner of claim 9 is characterized in that,
The described first interlock control operation is to start described heater when stopping described compressor.
12. the control method of the described air-conditioner of claim 9 is characterized in that,
Under the state of described heater running, below the air output the when air output of described pressure fan is controlled at described compressor operation.
13. the control method of the described air-conditioner of claim 9 is characterized in that,
When the detected indoor temperature of described temperature sensor reached temperature than the low uniform temperature of design temperature, described control device carried out the second interlock control operation, and described control device stops the running of described heater earlier, starts described compressor then.
14. the control method of the described air-conditioner of claim 13 is characterized in that,
To between the described second interlock control operation, described control device is controlled described heater and is kept operating condition in the described first interlock control operation.
15. the control method of the described air-conditioner of claim 10 is characterized in that,
Described air-conditioner also has the outer air-temperature sensor that detects outside air temperature, and described control device determines the described stipulated time according to being somebody's turn to do the detected outdoor temperature of outer air-temperature sensor.
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2005101350535A CN100526736C (en) | 2005-12-23 | 2005-12-23 | Air conditioner and control method for air conditioner |
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2005101350535A CN100526736C (en) | 2005-12-23 | 2005-12-23 | Air conditioner and control method for air conditioner |
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| CN1987260A true CN1987260A (en) | 2007-06-27 |
| CN100526736C CN100526736C (en) | 2009-08-12 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102230661A (en) * | 2011-06-17 | 2011-11-02 | 东华大学 | Intelligent central air-conditioning system control method for predicting lag time |
| CN103629762A (en) * | 2012-08-20 | 2014-03-12 | 快捷8咨询有限公司 | A system and method for improving efficiency of a refrigerant based system |
| CN106524433A (en) * | 2016-12-08 | 2017-03-22 | 青岛海尔空调器有限总公司 | Fixed-frequency air conditioner control method |
| CN108518816A (en) * | 2018-04-09 | 2018-09-11 | 苏州南海道电子科技有限公司 | A kind of computer room air-conditioning cooling energy conserving system |
-
2005
- 2005-12-23 CN CNB2005101350535A patent/CN100526736C/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102230661A (en) * | 2011-06-17 | 2011-11-02 | 东华大学 | Intelligent central air-conditioning system control method for predicting lag time |
| CN102230661B (en) * | 2011-06-17 | 2014-07-02 | 东华大学 | Intelligent central air-conditioning system control method for predicting lag time |
| CN103629762A (en) * | 2012-08-20 | 2014-03-12 | 快捷8咨询有限公司 | A system and method for improving efficiency of a refrigerant based system |
| CN103629762B (en) * | 2012-08-20 | 2018-11-06 | 快捷8咨询有限公司 | A method of the system based on refrigerant and a kind of raising system effectiveness |
| CN106524433A (en) * | 2016-12-08 | 2017-03-22 | 青岛海尔空调器有限总公司 | Fixed-frequency air conditioner control method |
| CN106524433B (en) * | 2016-12-08 | 2019-11-05 | 青岛海尔空调器有限总公司 | Fixed frequency air conditioner control method |
| CN108518816A (en) * | 2018-04-09 | 2018-09-11 | 苏州南海道电子科技有限公司 | A kind of computer room air-conditioning cooling energy conserving system |
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| Publication number | Publication date |
|---|---|
| CN100526736C (en) | 2009-08-12 |
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