CN104132421B - The control method and control system of air conditioner - Google Patents
The control method and control system of air conditioner Download PDFInfo
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- CN104132421B CN104132421B CN201410331210.9A CN201410331210A CN104132421B CN 104132421 B CN104132421 B CN 104132421B CN 201410331210 A CN201410331210 A CN 201410331210A CN 104132421 B CN104132421 B CN 104132421B
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Abstract
The invention provides a kind of control method of air conditioner and control system, wherein, auxiliary heater is provided with the outdoor unit of the air conditioner, the control method of the air conditioner includes：When the air conditioner is operated with heating mode, outdoor environment temperature is detected；If the outdoor environment temperature is less than predetermined temperature value, control the auxiliary heater to be operated, and according to the difference between the predetermined temperature value and the outdoor environment temperature, set the initial heating power of the auxiliary heater.Technical scheme can be when air conditioner be operated with heating mode, the initial heating power of auxiliary heater can be flexibly set according to outdoor environment temperature, the problem of outdoor unit heat exchanger frosting can not being solved to avoid initial heating power too low, while initial heating power can be avoided higher and increase the power consumption of air conditioner.
Description
Technical field
The present invention relates to air conditioner technical field, control method and a kind of air-conditioning in particular to a kind of air conditioner
The control system of device.
Background technology
At present, when air conditioner is operated in low temperature environment with heating mode, it will usually occur outdoor unit heat exchanger because
Temperature is relatively low and the situation of frosting, causes the air quantity of outdoor unit to reduce, heating effect is deteriorated, in order to continue in heating mode
Under be operated, air conditioner can carry out defrosting operation at regular intervals, cause heating effect discontinuous, and influence user's makes
With experience.Simultaneously as air conditioner from heating mode enter defrosting mode when, it is necessary to switch corresponding valve body (such as four-way
Valve), and when entering heating mode by defrosting mode, it is also desirable to the corresponding valve body of correspondence switching, frequent switching valve body is easily caused
Valve body weares and teares, and influences the service life of valve body.
Proposed in order to solve the above problems, in correlation technique in air conditioner set auxiliary heater scheme, with
When outdoor temperature is relatively low, starts auxiliary heater and heated, it is to avoid outdoor unit heat exchanger frosting.However, due to auxiliary in startup
Help after heater, auxiliary heater is heated with single heating power, on the one hand it is possible that outdoor temperature not
Be it is too low, but auxiliary heater heating power it is higher the problem of, add the power consumption of air conditioner；On the other hand it be able to may also go out
Existing outdoor temperature is relatively low, but the problem of the heating power deficiency of auxiliary heater, causes that outdoor unit heat exchange can not be efficiently solved
The problem of device frosting.
Therefore, how the environment according to residing for outdoor unit heat exchanger neatly adjusts the heating power of auxiliary heater
As technical problem urgently to be resolved hurrily.
The content of the invention
It is contemplated that at least solving one of technical problem present in prior art or correlation technique.
Therefore, it is an object of the present invention to propose one kind when air conditioner is operated with heating mode, can
The initial heating power of auxiliary heater is flexibly set according to outdoor environment temperature, can not to avoid initial heating power too low
The problem of solving outdoor unit heat exchanger frosting, while initial heating power can be avoided higher and increase the air-conditioning of air conditioner power consumption
Device control method and control system.
To achieve the above object, a kind of embodiment according to the first aspect of the invention, it is proposed that controlling party of air conditioner
Method, wherein, it is provided with auxiliary heater in the outdoor unit of the air conditioner, the control method of the air conditioner, including：Institute
When stating air conditioner and being operated with heating mode, outdoor environment temperature is detected；If the outdoor environment temperature is less than predetermined temperature
Value, then control the auxiliary heater to be operated, and according between the predetermined temperature value and the outdoor environment temperature
Difference, sets the initial heating power of the auxiliary heater.
The control method of air conditioner according to an embodiment of the invention, by detecting outdoor environment temperature be less than it is predetermined
During temperature value, control auxiliary heater is operated so that auxiliary heater can be changed outdoor unit indirectly by heating air
Hot device is heated, to avoid the temperature of outdoor unit heat exchanger is too low from causing frosting and influence the heating effect of air conditioner.
By the initial heating work(that auxiliary heater is set according to the difference between predetermined temperature value and outdoor environment temperature
Rate so that when the difference of predetermined temperature value and outdoor environment temperature is larger, i.e., can be auxiliary when outdoor environment temperature is relatively low
Heater sets higher initial heating power, is prevented effectively from outdoor unit heat exchanger frosting, alleviates the heating load of air conditioner；And
When the difference of predetermined temperature value and outdoor environment temperature is smaller, i.e., when outdoor environment temperature is not too low, it can add for auxiliary
Hot device sets relatively low initial heating power, on the premise of outdoor heat exchanger frosting is avoided, to reduce the power consumption of air conditioner.Its
In, above-mentioned predetermined temperature value can be set according to outdoor environment temperature during outdoor unit heat exchanger frosting.
In addition, the control method of air conditioner according to the above embodiment of the present invention, can also have technology additional as follows
Feature：
According to one embodiment of present invention, the initial heating power of the auxiliary heater and the difference are into positive correlation
Relation.
The control method of air conditioner according to an embodiment of the invention, specifically, above-mentioned predetermined temperature value with it is outdoor
The difference of environment temperature is bigger, illustrates that outdoor environment temperature is lower, the easier frosting of outdoor unit heat exchanger, it is therefore desirable to for auxiliary
Heater sets larger initial heating power；And hour is got in the difference of predetermined temperature value and outdoor environment temperature, illustrate room
External environment temperature is relatively also higher, and outdoor unit heat exchanger is relative to be difficult frosting, therefore, it can set relatively low for auxiliary heater
Initial heating power, with the premise of outdoor unit heat exchanger frost-free is ensured, the effective power consumption of reduction air conditioner.
According to one embodiment of present invention, also include before the outdoor environment temperature is detected：Judge the air-conditioning
Whether the time that device is operated with heating mode reaches the scheduled time, if so, then outdoor environment temperature described in perform detection
Step.
The control method of air conditioner according to an embodiment of the invention, by it is determined that air conditioner carries out work with heating mode
The time of work was reached after the scheduled time, then detected outdoor environment temperature, and performed the initial heating of follow-up setting auxiliary heater
The step of power, enabling ensure that air conditioner is being operated with heating mode and handled accordingly again after stabilization,
Avoid the step of air conditioner is carried out starting auxiliary heater when work is not stablized and influence the stability of system.
According to one embodiment of present invention, after the initial heating power of the auxiliary heater is set, in addition to：
Detect the air outlet temperature of outdoor unit heat exchanger；According to the predetermined temperature value and the air outlet temperature of the outdoor unit heat exchanger
Difference, adjust the heating power of the auxiliary heater.
The control method of air conditioner according to an embodiment of the invention, by according to predetermined temperature value and outdoor unit heat exchanger
Air outlet temperature difference adjust auxiliary heater heating power, it can be ensured that the heating power of auxiliary heater is adapted to
The practical working situation of outdoor unit heat exchanger, such as when the air outlet temperature of outdoor unit heat exchanger is relatively low, increases auxiliary heater
Heating power, be prevented effectively from outdoor unit heat exchanger frosting；When the air outlet temperature of outdoor unit heat exchanger is higher, reduction auxiliary
The heating power of heater, to reduce the power consumption of air conditioner.Further, since the air outlet temperature of outdoor unit heat exchanger is less than outdoor
Environment temperature, and can more directly reflect the working condition of outdoor unit heat exchanger, therefore, by according to predetermined temperature value
Difference between the air outlet temperature of outdoor unit heat exchanger adjusts the heating power of auxiliary heater, it can be ensured that after regulation
Heating power is adaptive to the working condition of outdoor unit heat exchanger.Wherein, going out for outdoor unit heat exchanger is detected in the embodiment
Draught temperature and adjust auxiliary heater heating power process both can be carry out in real time or according to certain week
What the phase was carried out.
As a kind of preferred embodiment, at predetermined time intervals, air outlet temperature described in one-time detection is performed, and according to
Difference between the predetermined temperature value and the air outlet temperature of the outdoor unit heat exchanger adjusts adding for the auxiliary heater
The operation of thermal power.
The control method of air conditioner according to an embodiment of the invention, because the air outlet temperature of outdoor unit heat exchanger is short
Variable quantity in time is smaller, if detection temperature always, and the heating power of auxiliary heater is adjusted, system may be increased
Processing load, therefore, it can carry out single treatment at predetermined time intervals, the scheduled time can be adjusted according to actual condition.
According to one embodiment of present invention, the air outlet temperature of the predetermined temperature value and the outdoor unit heat exchanger it
Between difference and the auxiliary heater after adjustment heating power into positive correlation.
The control method of air conditioner according to an embodiment of the invention, specifically, above-mentioned predetermined temperature value with it is outdoor
The difference of the air outlet temperature of machine heat exchanger is bigger, illustrates that the temperature of outdoor unit heat exchanger is lower, outdoor unit heat exchanger is easier
Frosting, it is therefore desirable to heighten the heating power of auxiliary heater；And in predetermined temperature value and the air outlet temperature of outdoor unit heat exchanger
The difference of degree gets over hour, illustrates that the temperature of outdoor unit heat exchanger is relatively also higher, and outdoor unit heat exchanger is relative to be difficult frosting, because
This, can turn down the heating power of auxiliary heater, so that on the premise of outdoor unit heat exchanger frost-free is ensured, effectively reduction is empty
Adjust the power consumption of device.
A kind of embodiment according to a second aspect of the present invention, it is also proposed that control system of air conditioner, wherein, the air-conditioning
It is provided with auxiliary heater in the outdoor unit of device, the control system of the air conditioner, including：Temperature detecting unit, in institute
When stating air conditioner and being operated with heating mode, outdoor environment temperature is detected；Control unit, in the temperature detecting unit
When the outdoor environment temperature detected is less than predetermined temperature value, the auxiliary heater is controlled to be operated, and according to institute
The difference between predetermined temperature value and the outdoor environment temperature is stated, the initial heating power of the auxiliary heater is set.
The control system of air conditioner according to an embodiment of the invention, by detecting outdoor environment temperature be less than it is predetermined
During temperature value, control auxiliary heater is operated so that auxiliary heater can be changed outdoor unit indirectly by heating air
Hot device is heated, to avoid the temperature of outdoor unit heat exchanger is too low from causing frosting and influence the heating effect of air conditioner.
By the initial heating work(that auxiliary heater is set according to the difference between predetermined temperature value and outdoor environment temperature
Rate so that when the difference of predetermined temperature value and outdoor environment temperature is larger, i.e., can be auxiliary when outdoor environment temperature is relatively low
Heater sets higher initial heating power, is prevented effectively from outdoor unit heat exchanger frosting, alleviates the heating load of air conditioner；And
When the difference of predetermined temperature value and outdoor environment temperature is smaller, i.e., when outdoor environment temperature is not too low, it can add for auxiliary
Hot device sets relatively low initial heating power, on the premise of outdoor heat exchanger frosting is avoided, to reduce the power consumption of air conditioner.Its
In, above-mentioned predetermined temperature value can be set according to outdoor environment temperature during outdoor unit heat exchanger frosting.
According to one embodiment of present invention, the initial heating power of the auxiliary heater and the difference are into positive correlation
Relation.
The control system of air conditioner according to an embodiment of the invention, specifically, above-mentioned predetermined temperature value with it is outdoor
The difference of environment temperature is bigger, illustrates that outdoor environment temperature is lower, the easier frosting of outdoor unit heat exchanger, it is therefore desirable to for auxiliary
Heater sets larger initial heating power；And hour is got in the difference of predetermined temperature value and outdoor environment temperature, illustrate room
External environment temperature is relatively also higher, and outdoor unit heat exchanger is relative to be difficult frosting, therefore, it can set relatively low for auxiliary heater
Initial heating power, with the premise of outdoor unit heat exchanger frost-free is ensured, the effective power consumption of reduction air conditioner.
According to one embodiment of present invention, in addition to：Judging unit, for judging that the air conditioner is entered with heating mode
Whether the time of row work reaches the scheduled time；The temperature detecting unit in the judging unit specifically for judging described
When the time that air conditioner is operated with heating mode reaches the scheduled time, the outdoor environment temperature is detected.
The control system of air conditioner according to an embodiment of the invention, by it is determined that air conditioner carries out work with heating mode
The time of work was reached after the scheduled time, then detected outdoor environment temperature, and performed the initial heating of follow-up setting auxiliary heater
The process of power, enabling ensure that air conditioner is being operated with heating mode and handled accordingly again after stabilization,
Avoid the step of air conditioner is carried out starting auxiliary heater when work is not stablized and influence the stability of system.
According to one embodiment of present invention, the temperature detecting unit is additionally operable to：It is described in described control unit setting
After the initial heating power of auxiliary heater, the air outlet temperature of outdoor unit heat exchanger is detected；Described control unit is additionally operable to：
The difference of the air outlet temperature of the outdoor unit heat exchanger detected according to the predetermined temperature value and the temperature detecting unit
Value, adjusts the heating power of the auxiliary heater.
The control system of air conditioner according to an embodiment of the invention, by according to predetermined temperature value and outdoor unit heat exchanger
Air outlet temperature difference adjust auxiliary heater heating power, it can be ensured that the heating power of auxiliary heater is adapted to
The practical working situation of outdoor unit heat exchanger, such as when the air outlet temperature of outdoor unit heat exchanger is relatively low, increases auxiliary heater
Heating power, be prevented effectively from outdoor unit heat exchanger frosting；When the air outlet temperature of outdoor unit heat exchanger is higher, reduction auxiliary
The heating power of heater, to reduce the power consumption of air conditioner.Further, since the air outlet temperature of outdoor unit heat exchanger is less than outdoor
Environment temperature, and can more directly reflect the working condition of outdoor unit heat exchanger, therefore, by according to predetermined temperature value
Difference between the air outlet temperature of outdoor unit heat exchanger adjusts the heating power of auxiliary heater, it can be ensured that after regulation
Heating power is adaptive to the working condition of outdoor unit heat exchanger.Wherein, going out for outdoor unit heat exchanger is detected in the embodiment
Draught temperature and adjust auxiliary heater heating power process both can be carry out in real time or according to certain week
What the phase was carried out.
As a kind of preferred embodiment, the temperature detecting unit is specifically at predetermined time intervals, detecting once institute
State the air outlet temperature of outdoor unit heat exchanger；Described control unit is specifically for according to the predetermined temperature value and the temperature
Difference between the air outlet temperature for the outdoor heat exchanger that detection unit is detected every time adjusts the auxiliary heater
Heating power.
The control system of air conditioner according to an embodiment of the invention, because the air outlet temperature of outdoor unit heat exchanger is short
Variable quantity in time is smaller, if detection temperature always, and the heating power of auxiliary heater is adjusted, system may be increased
Processing load, therefore, it can carry out single treatment at predetermined time intervals, the scheduled time can be adjusted according to actual condition.
According to one embodiment of present invention, the air outlet temperature of the predetermined temperature value and the outdoor unit heat exchanger it
Between difference and the auxiliary heater after adjustment heating power into positive correlation.
The control system of air conditioner according to an embodiment of the invention, specifically, above-mentioned predetermined temperature value with it is outdoor
The difference of the air outlet temperature of machine heat exchanger is bigger, illustrates that the temperature of outdoor unit heat exchanger is lower, outdoor unit heat exchanger is easier
Frosting, it is therefore desirable to heighten the heating power of auxiliary heater；And in predetermined temperature value and the air outlet temperature of outdoor unit heat exchanger
The difference of degree gets over hour, illustrates that the temperature of outdoor unit heat exchanger is relatively also higher, and outdoor unit heat exchanger is relative to be difficult frosting, because
This, can turn down the heating power of auxiliary heater, so that on the premise of outdoor unit heat exchanger frost-free is ensured, effectively reduction is empty
Adjust the power consumption of device.
The additional aspect and advantage of the present invention will be set forth in part in the description, and will partly become from the following description
Obtain substantially, or recognized by the practice of the present invention.
Brief description of the drawings
The above-mentioned and/or additional aspect and advantage of the present invention will become from description of the accompanying drawings below to embodiment is combined
Substantially and be readily appreciated that, wherein：
Fig. 1 shows the schematic flow diagram of the control method of air conditioner according to an embodiment of the invention；
Fig. 2 shows the schematic block diagram of the control system of air conditioner according to an embodiment of the invention；
Fig. 3 shows the schematic flow diagram of the control method of air conditioner according to another embodiment of the invention.
Embodiment
It is below in conjunction with the accompanying drawings and specific real in order to be more clearly understood that the above objects, features and advantages of the present invention
Mode is applied the present invention is further described in detail.It should be noted that in the case where not conflicting, the implementation of the application
Feature in example and embodiment can be mutually combined.
Many details are elaborated in the following description to facilitate a thorough understanding of the present invention, still, the present invention may be used also
Implemented with being different from other modes described here using other, therefore, protection scope of the present invention is not by described below
Specific embodiment limitation.
Auxiliary heater is provided with the outdoor unit of air conditioner described in following examples.
Fig. 1 shows the schematic flow diagram of the control method of air conditioner according to an embodiment of the invention.
As shown in figure 1, the control method of air conditioner according to an embodiment of the invention, including：Step 102, in institute
When stating air conditioner and being operated with heating mode, outdoor environment temperature is detected；Step 104, if the outdoor environment temperature is less than
Predetermined temperature value, then control the auxiliary heater in outdoor unit to be operated, and according to the predetermined temperature value and the outdoor
Difference between environment temperature, sets the initial heating power of the auxiliary heater.
By the way that when detecting outdoor environment temperature less than predetermined temperature value, control auxiliary heater is operated so that
Auxiliary heater can be heated to outdoor unit heat exchanger indirectly by heating air, to avoid the temperature of outdoor unit heat exchanger
It is too low to cause frosting and influence the heating effect of air conditioner.
By the initial heating work(that auxiliary heater is set according to the difference between predetermined temperature value and outdoor environment temperature
Rate so that when the difference of predetermined temperature value and outdoor environment temperature is larger, i.e., can be auxiliary when outdoor environment temperature is relatively low
Heater sets higher initial heating power, is prevented effectively from outdoor unit heat exchanger frosting, alleviates the heating load of air conditioner；And
When the difference of predetermined temperature value and outdoor environment temperature is smaller, i.e., when outdoor environment temperature is not too low, it can add for auxiliary
Hot device sets relatively low initial heating power, on the premise of outdoor heat exchanger frosting is avoided, to reduce the power consumption of air conditioner.Its
In, above-mentioned predetermined temperature value can be set according to outdoor environment temperature during outdoor unit heat exchanger frosting.
In addition, the control method of air conditioner according to the above embodiment of the present invention, can also have technology additional as follows
Feature：
According to one embodiment of present invention, the initial heating power of the auxiliary heater and the difference are into positive correlation
Relation.
Specifically, above-mentioned predetermined temperature value and the difference of outdoor environment temperature are bigger, illustrate that outdoor environment temperature is got over
It is low, the easier frosting of outdoor unit heat exchanger, it is therefore desirable to which larger initial heating power is set for auxiliary heater；And predetermined
The difference of temperature value and outdoor environment temperature gets over hour, illustrates that outdoor environment temperature is relatively also higher, outdoor unit heat exchanger phase
To being difficult frosting, it therefore, it can set relatively low initial heating power for auxiliary heater, to ensure outdoor unit heat exchanger not
On the premise of frosting, the power consumption of air conditioner is effectively reduced.
According to one embodiment of present invention, also include before the outdoor environment temperature is detected：Judge the air-conditioning
Whether the time that device is operated with heating mode reaches the scheduled time, if so, then outdoor environment temperature described in perform detection
Step.
By after it is determined that the time that air conditioner is operated with heating mode reaches the scheduled time, then detect outdoor environment
Temperature, and performing follow-up the step of the initial heating power of auxiliary heater is set, enabling ensure air conditioner to heat
Pattern is operated and handled accordingly again after stable, it is to avoid air conditioner is carried out starting auxiliary when work is not stablized
The step of heater and the stability for influenceing system.
According to one embodiment of present invention, after the initial heating power of the auxiliary heater is set, in addition to：
Detect the air outlet temperature of outdoor unit heat exchanger；According to the predetermined temperature value and the air outlet temperature of the outdoor unit heat exchanger
Difference, adjust the heating power of the auxiliary heater.
By adjusting adding for auxiliary heater according to the difference of predetermined temperature value and the air outlet temperature of outdoor unit heat exchanger
Thermal power, it can be ensured that the heating power of auxiliary heater is adapted to the practical working situation of outdoor unit heat exchanger, such as in outdoor
When the air outlet temperature of machine heat exchanger is relatively low, increases the heating power of auxiliary heater, be prevented effectively from outdoor unit heat exchanger frosting；
When the air outlet temperature of outdoor unit heat exchanger is higher, the heating power of auxiliary heater is reduced, to reduce the power consumption of air conditioner.
Further, since the air outlet temperature of outdoor unit heat exchanger is less than outdoor environment temperature, and it can more directly reflect outdoor
The working condition of machine heat exchanger, therefore, by according to the difference between predetermined temperature value and the air outlet temperature of outdoor unit heat exchanger
The heating power of value regulation auxiliary heater, it can be ensured that the heating power after regulation is adaptive to the work of outdoor unit heat exchanger
Make situation.Wherein, the air outlet temperature of outdoor unit heat exchanger is detected in the embodiment and the heating power of auxiliary heater is adjusted
Process can both carry out in real time or carried out according to some cycles.
As a kind of preferred embodiment, at predetermined time intervals, air outlet temperature described in one-time detection is performed, and according to
Difference between the predetermined temperature value and the air outlet temperature of the outdoor unit heat exchanger adjusts adding for the auxiliary heater
The operation of thermal power.
Because the air outlet temperature variable quantity in a short time of outdoor unit heat exchanger is smaller, if detection temperature always, and
The heating power of auxiliary heater is adjusted, the processing load of system may be increased, therefore, it can carry out one at predetermined time intervals
Secondary processing, the scheduled time can be adjusted according to actual condition.
According to one embodiment of present invention, the air outlet temperature of the predetermined temperature value and the outdoor unit heat exchanger it
Between difference and the auxiliary heater after adjustment heating power into positive correlation.
Specifically, the difference of above-mentioned predetermined temperature value and the air outlet temperature of outdoor unit heat exchanger is bigger, illustrates room
The temperature of outer machine heat exchanger is lower, the easier frosting of outdoor unit heat exchanger, it is therefore desirable to heighten the heating power of auxiliary heater；
And hour is got in the difference of predetermined temperature value and the air outlet temperature of outdoor unit heat exchanger, illustrate the temperature phase of outdoor unit heat exchanger
To also higher, outdoor unit heat exchanger is relative to be difficult frosting, therefore, it can turn down the heating power of auxiliary heater, with true
On the premise of protecting outdoor unit heat exchanger frost-free, the power consumption of air conditioner is effectively reduced.
Fig. 2 shows the schematic block diagram of the control system of air conditioner according to an embodiment of the invention.
As shown in Fig. 2 the control system of air conditioner according to an embodiment of the invention, including：202 temperature detecting units,
For when the air conditioner is operated with heating mode, detecting outdoor environment temperature；204 control units, for described
When the outdoor environment temperature that 202 temperature detecting units are detected is less than predetermined temperature value, the auxiliary in control outdoor unit adds
Hot device is operated, and according to the difference between the predetermined temperature value and the outdoor environment temperature, is set the auxiliary and added
The initial heating power of hot device.
By the way that when detecting outdoor environment temperature less than predetermined temperature value, control auxiliary heater is operated so that
Auxiliary heater can be heated to outdoor unit heat exchanger indirectly by heating air, to avoid the temperature of outdoor unit heat exchanger
It is too low to cause frosting and influence the heating effect of air conditioner.
By the initial heating work(that auxiliary heater is set according to the difference between predetermined temperature value and outdoor environment temperature
Rate so that when the difference of predetermined temperature value and outdoor environment temperature is larger, i.e., can be auxiliary when outdoor environment temperature is relatively low
Heater sets higher initial heating power, is prevented effectively from outdoor unit heat exchanger frosting, alleviates the heating load of air conditioner；And
When the difference of predetermined temperature value and outdoor environment temperature is smaller, i.e., when outdoor environment temperature is not too low, it can add for auxiliary
Hot device sets relatively low initial heating power, on the premise of outdoor heat exchanger frosting is avoided, to reduce the power consumption of air conditioner.Its
In, above-mentioned predetermined temperature value can be set according to outdoor environment temperature during outdoor unit heat exchanger frosting.
According to one embodiment of present invention, the initial heating power of the auxiliary heater and the difference are into positive correlation
Relation.
Specifically, above-mentioned predetermined temperature value and the difference of outdoor environment temperature are bigger, illustrate that outdoor environment temperature is got over
It is low, the easier frosting of outdoor unit heat exchanger, it is therefore desirable to which larger initial heating power is set for auxiliary heater；And predetermined
The difference of temperature value and outdoor environment temperature gets over hour, illustrates that outdoor environment temperature is relatively also higher, outdoor unit heat exchanger phase
To being difficult frosting, it therefore, it can set relatively low initial heating power for auxiliary heater, to ensure outdoor unit heat exchanger not
On the premise of frosting, the power consumption of air conditioner is effectively reduced.
According to one embodiment of present invention, in addition to：Judging unit 206, for judging the air conditioner to heat mould
Whether the time that formula is operated reaches the scheduled time；The temperature detecting unit 202 is specifically in the judging unit
When the time that the 206 judgement air conditioners are operated with heating mode reaches the scheduled time, the outdoor environment is detected
Temperature.
By after it is determined that the time that air conditioner is operated with heating mode reaches the scheduled time, then detect outdoor environment
Temperature, and perform the process of the follow-up initial heating power that auxiliary heater is set, enabling ensure air conditioner to heat
Pattern is operated and handled accordingly again after stable, it is to avoid air conditioner is carried out starting auxiliary when work is not stablized
The step of heater and the stability for influenceing system.
According to one embodiment of present invention, the temperature detecting unit 202 is additionally operable to：Set in described control unit 204
After the initial heating power of the fixed auxiliary heater, the air outlet temperature of outdoor unit heat exchanger is detected；Described control unit
204 are additionally operable to：The outdoor unit heat exchanger that is detected according to the predetermined temperature value with the temperature detecting unit 202 goes out
The difference of draught temperature, adjusts the heating power of the auxiliary heater.
By adjusting adding for auxiliary heater according to the difference of predetermined temperature value and the air outlet temperature of outdoor unit heat exchanger
Thermal power, it can be ensured that the heating power of auxiliary heater is adapted to the practical working situation of outdoor unit heat exchanger, such as in outdoor
When the air outlet temperature of machine heat exchanger is relatively low, increases the heating power of auxiliary heater, be prevented effectively from outdoor unit heat exchanger frosting；
When the air outlet temperature of outdoor unit heat exchanger is higher, the heating power of auxiliary heater is reduced, to reduce the power consumption of air conditioner.
Further, since the air outlet temperature of outdoor unit heat exchanger is less than outdoor environment temperature, and it can more directly reflect outdoor
The working condition of machine heat exchanger, therefore, by according to the difference between predetermined temperature value and the air outlet temperature of outdoor unit heat exchanger
The heating power of value regulation auxiliary heater, it can be ensured that the heating power after regulation is adaptive to the work of outdoor unit heat exchanger
Make situation.Wherein, the air outlet temperature of outdoor unit heat exchanger is detected in the embodiment and the heating power of auxiliary heater is adjusted
Process can both carry out in real time or carried out according to some cycles.
As a kind of preferred embodiment, the temperature detecting unit 202 is specifically at predetermined time intervals, detecting one
The air outlet temperature of the secondary outdoor unit heat exchanger；Described control unit 204 is specifically for according to the predetermined temperature value and institute
The difference stated between the air outlet temperature for the outdoor heat exchanger that temperature detecting unit 202 is detected every time adjusts the auxiliary
The heating power of heater.
Because the air outlet temperature variable quantity in a short time of outdoor unit heat exchanger is smaller, if detection temperature always, and
The heating power of auxiliary heater is adjusted, the processing load of system may be increased, therefore, it can carry out one at predetermined time intervals
Secondary processing, the scheduled time can be adjusted according to actual condition.
According to one embodiment of present invention, the air outlet temperature of the predetermined temperature value and the outdoor unit heat exchanger it
Between difference and the auxiliary heater after adjustment heating power into positive correlation.
Specifically, the difference of above-mentioned predetermined temperature value and the air outlet temperature of outdoor unit heat exchanger is bigger, illustrates room
The temperature of outer machine heat exchanger is lower, the easier frosting of outdoor unit heat exchanger, it is therefore desirable to heighten the heating power of auxiliary heater；
And hour is got in the difference of predetermined temperature value and the air outlet temperature of outdoor unit heat exchanger, illustrate the temperature phase of outdoor unit heat exchanger
To also higher, outdoor unit heat exchanger is relative to be difficult frosting, therefore, it can turn down the heating power of auxiliary heater, with true
On the premise of protecting outdoor unit heat exchanger frost-free, the power consumption of air conditioner is effectively reduced.
Fig. 3 shows the schematic flow diagram of the control method of air conditioner according to another embodiment of the invention.
As shown in figure 3, the control method of air conditioner according to another embodiment of the invention, including：
Step 302, whether the start-up mode for judging air conditioner is heating mode, and now auxiliary heater is in power-off shape
State, if so, then performing step 304；Otherwise, other processing are carried out.
Step 304, when judging that air conditioner is started with heating mode, timing simultaneously judges whether to reach the first preset time,
If so, then performing step 306；Otherwise, return to step 304.
Step 306, when the time for judging that air conditioner is operated with heating mode reaching the first preset time, sensing chamber
External environment temperature.
Step 308, judge whether outdoor environment temperature is less than reference temperature T1, if so, then performing step 312；Otherwise, hold
Row step 310.
Step 310, when judging that outdoor environment temperature is not less than reference temperature T1, air conditioner enters conventional heating pattern,
Do not start auxiliary heater.
Step 312, when judging that outdoor environment temperature is less than reference temperature T1, according to outdoor environment temperature and reference temperature
T1 difference sets the initial heating power of auxiliary heater, is heated with starting auxiliary heater.
Step 314, timing and judge whether to reach the second preset time, if；Then perform step 316；Otherwise；Return to institute
State step 314.
Step 316, the air outlet temperature of outdoor heat exchanger is detected, and by between air outlet temperature and reference temperature T2
Difference adjusts the heating power of auxiliary heater.Return to step 314 continues after the heating power of adjustment auxiliary heater
Timing is carried out, to realize every the second preset time, the purpose that heating power of auxiliary heater is adjusted.
Wherein, reference temperature T1 and reference temperature T2 can be same temperature value.
Technical scheme is described in detail above in association with accompanying drawing, it is contemplated that proposed in correlation technique in air conditioner
The scheme of interior setting auxiliary heater, because auxiliary heater is heated with single heating power, on the one hand may go out
Existing outdoor temperature be not it is too low, but auxiliary heater heating power it is higher the problem of, add the power consumption of air conditioner；It is another
Aspect may also occur that outdoor temperature is relatively low, but the problem of the heating power deficiency of auxiliary heater, causing can not be effectively
The problem of solving outdoor unit heat exchanger frosting.Therefore, the present invention proposes a kind of control program of new air conditioner, can be in sky
When tune device is operated with heating mode, the initial heating work(of auxiliary heater can be flexibly set according to outdoor environment temperature
Rate, and in the course of the work, the heating power of auxiliary heater is adjusted flexibly according to the air outlet temperature of outdoor heat exchanger, it is to avoid
The heating power of auxiliary heater is too low and the problem of outdoor unit heat exchanger frosting can not be solved, while can avoid auxiliary plus
The heating power of hot device is higher and increases the power consumption of air conditioner.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made any repaiies
Change, equivalent substitution, improvement etc., should be included in the scope of the protection.
Claims (8)
1. it is provided with auxiliary heater in a kind of control method of air conditioner, the outdoor unit of the air conditioner, it is characterised in that bag
Include：
When the air conditioner is operated with heating mode, judge that the time that the air conditioner is operated with heating mode is
It is no to reach the scheduled time, if so, detection outdoor environment temperature；
If the outdoor environment temperature is less than predetermined temperature value, the auxiliary heater is controlled to be operated, and according to described
Difference between predetermined temperature value and the outdoor environment temperature, sets the initial heating power of the auxiliary heater；
After the initial heating power of the auxiliary heater is set, in addition to：
Detect the air outlet temperature of outdoor unit heat exchanger；
According to the predetermined temperature value and the difference of the air outlet temperature of the outdoor unit heat exchanger, the auxiliary heater is adjusted
Heating power.
2. the control method of air conditioner according to claim 1, it is characterised in that the initial heating of the auxiliary heater
Power and the difference are into positive correlation.
3. the control method of air conditioner according to claim 1, it is characterised in that
At predetermined time intervals, air outlet temperature described in one-time detection is performed, and according to the predetermined temperature value and the outdoor
Difference between the air outlet temperature of machine heat exchanger adjusts the operation of the heating power of the auxiliary heater.
4. the control method of the air conditioner according to claim 1 or 3, it is characterised in that the predetermined temperature value with it is described
The heating power of difference between the air outlet temperature of outdoor unit heat exchanger and the auxiliary heater after adjustment is into positive correlation
Relation.
5. it is provided with auxiliary heater in a kind of control system of air conditioner, the outdoor unit of the air conditioner, it is characterised in that bag
Include：
Judging unit, for judging whether the time that the air conditioner is operated with heating mode reaches the scheduled time；
Temperature detecting unit, for judging that the time that the air conditioner is operated with heating mode reaches in the judging unit
During the scheduled time, outdoor environment temperature is detected；
Control unit, when the outdoor environment temperature for being detected in the temperature detecting unit is less than predetermined temperature value,
The auxiliary heater is controlled to be operated, and according to the difference between the predetermined temperature value and the outdoor environment temperature,
Set the initial heating power of the auxiliary heater；
The temperature detecting unit is additionally operable to：
After the initial heating power that described control unit sets the auxiliary heater, the air-out of outdoor unit heat exchanger is detected
Mouth temperature；
Described control unit is additionally operable to：
The air outlet temperature of the outdoor unit heat exchanger detected according to the predetermined temperature value and the temperature detecting unit
Difference, adjust the heating power of the auxiliary heater.
6. the control system of air conditioner according to claim 5, it is characterised in that the initial heating of the auxiliary heater
Power and the difference are into positive correlation.
7. the control system of air conditioner according to claim 5, it is characterised in that
The temperature detecting unit is specifically at predetermined time intervals, detecting once the air outlet temperature of the outdoor unit heat exchanger
Degree；
Described control unit is specifically for according to the predetermined temperature value and the temperature detecting unit are detected every time
Difference between the air outlet temperature of outdoor heat exchanger adjusts the heating power of the auxiliary heater.
8. the control system of the air conditioner according to claim 5 or 7, it is characterised in that the predetermined temperature value with it is described
The heating power of difference between the air outlet temperature of outdoor unit heat exchanger and the auxiliary heater after adjustment is into positive correlation
Relation.
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| CN201410331210.9A CN104132421B (en) | 2014-07-11 | 2014-07-11 | The control method and control system of air conditioner |
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| CN201410331210.9A CN104132421B (en) | 2014-07-11 | 2014-07-11 | The control method and control system of air conditioner |
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| CN104132421B true CN104132421B (en) | 2017-10-03 |
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| CN104764092A (en) * | 2015-03-24 | 2015-07-08 | 广东美的制冷设备有限公司 | Air conditioner and outdoor unit control method |
| CN104930601B (en) * | 2015-06-25 | 2019-05-24 | 广东美的制冷设备有限公司 | A kind of air-conditioner outdoor unit and its control method of electrified heating device |
| CN105402855B (en) * | 2015-12-08 | 2018-02-02 | 芜湖美智空调设备有限公司 | The control method and air conditioner of air conditioner |
| CN105423493B (en) * | 2015-12-08 | 2018-02-02 | 芜湖美智空调设备有限公司 | The control method and air conditioner of air conditioner |
| CN105674477B (en) * | 2016-01-04 | 2018-09-07 | 珠海格力电器股份有限公司 | Control method and device for auxiliary electric heating of air conditioner |
| CN107339830B (en) * | 2016-04-29 | 2023-05-30 | 广东美的制冷设备有限公司 | Window air conditioner and refrigeration control method thereof |
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| CN106594962B (en) * | 2016-10-27 | 2019-07-23 | 广东美的制冷设备有限公司 | Air conditioner defrosting control method, controller and air conditioner |
| CN107504628A (en) * | 2017-08-01 | 2017-12-22 | 青岛海尔空调电子有限公司 | Equipment detection method and device |
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| CN111141008B (en) * | 2019-12-30 | 2021-09-21 | 宁波奥克斯电气股份有限公司 | Control method and control device for defrosting of air conditioner, storage medium and air conditioner |
| CN111043725A (en) * | 2019-12-30 | 2020-04-21 | 青岛海尔空调器有限总公司 | Control method of air conditioner |
| CN111043724A (en) * | 2019-12-30 | 2020-04-21 | 青岛海尔空调器有限总公司 | Control method of air conditioner |
| CN112710060A (en) * | 2020-12-29 | 2021-04-27 | 宁波奥克斯电气股份有限公司 | Air conditioner control method and device and air conditioner |
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