CN105241034B - control method and control device for air conditioner - Google Patents
control method and control device for air conditioner Download PDFInfo
- Publication number
- CN105241034B CN105241034B CN201510791730.2A CN201510791730A CN105241034B CN 105241034 B CN105241034 B CN 105241034B CN 201510791730 A CN201510791730 A CN 201510791730A CN 105241034 B CN105241034 B CN 105241034B
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- compressor
- current
- air conditioner
- running
- predetermined
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/65—Electronic processing for selecting an operating mode
Abstract
The invention provides a kind of control method and control device for air conditioner, wherein, the control method for air conditioner, including：In a chiller mode or during dehumidification mode operation, the running current of the compressor is detected in the air conditioner；Judge that the running current of the compressor determines whether the outdoor fan of the air conditioner occurs the size of the first predetermined current of stall with being used for, to generate judged result；According to the judged result, determine whether the outdoor fan occurs stall, be controlled with the running status to the compressor.Pass through technical scheme, whether can determine the outdoor fan of air conditioner can occur stall, and when it is determined that stall can occur for outdoor fan, control compressor is out of service in time, so as to avoid compressor outdoor fan occur stall when continue to operation the occurrence of, the reliability of compressor operating has been ensured, the service life of compressor is extended.
Description
Technical field
The present invention relates to air conditioner technical field, in particular to a kind of control method and one kind for air conditioner
Control device for air conditioner.
Background technology
Existing air conditioner is during startup optimization, and when stall occurs for the outdoor fan of air conditioner, compressor can
Operating can be still may proceed to, this undoubtedly influences the performance of compressor in itself, while can also cause the frequent start-stop of user's unknown cause
Compressor, so as to cause the service life of compressor to reduce or even damage, is solved for this problem there is presently no effective
Scheme.
Therefore, how to determine whether the outdoor fan of air conditioner occurs stall 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 a kind of new control program for air conditioner, can determine
Whether the outdoor fan of air conditioner can occur stall, and when it is determined that stall can occur for outdoor fan, control compressor stops in time
Only run, thus avoid compressor outdoor fan occur stall when continue to operation the occurrence of, ensured compression
Machine reliability of operation, extends the service life of compressor.
It is another object of the present invention to propose a kind of air conditioner.
To achieve the above object, a kind of embodiment according to the first aspect of the invention, it is proposed that control for air conditioner
Method processed, including：In a chiller mode or during dehumidification mode operation, the running current of the compressor is detected in the air conditioner；
Judge the running current of the compressor with being preset for determining whether the outdoor fan of the air conditioner occurs the first of stall
The size of electric current, to generate judged result；According to the judged result, determine whether the outdoor fan occurs stall, with right
The running status of the compressor is controlled.
According to an embodiment of the invention be used for air conditioner control method, by air conditioner in a chiller mode or dehumidifying
During mode operation, determine whether the outdoor fan of the air conditioner occurs with being used for according to the running current of the compressor detected
The judgement of the size of first predetermined current of stall, determines whether outdoor fan occurs stall so that can carry out phase in time
Close prompting or directly take safeguard measure, so as to avoid outdoor fan once occurring the feelings that stall will cause to damage to compressor
The generation of condition.
The control method for air conditioner according to the abovementioned embodiments of the present invention, can also have following technical characteristic：
According to one embodiment of present invention, judging the running current of the compressor and be used to determine the air conditioner
Outdoor fan the step of whether occur the size of the first predetermined current of stall before, in addition to：Judge the compressor
Whether voltage is in predetermined voltage range；When judging that the voltage of the compressor is in the predetermined voltage range, institute is performed
The step of stating the size of the running current for judging the compressor and the first predetermined current.
It is used for the control method of air conditioner according to an embodiment of the invention, generally, the voltage of compressor is at certain
Whether when in individual scope, the probability that stall occurs for outdoor fan can be bigger, so by judging the voltage of compressor in default electricity
In the range of pressure (such as 200v to 240v), and when judging that the voltage of compressor is in predetermined voltage range, then perform judgement compression
The step of size of the running current of machine and the first predetermined current, so as to reduce determination range, the computing for reducing system is born
Load, while reducing the probability of erroneous judgement, improves the accuracy of judgement.
According to one embodiment of present invention, according to the judged result, determine whether the outdoor fan occurs stall
The step of specifically include：When the running current for judging the compressor is less than or equal to first predetermined current, institute is determined
State outdoor fan and occur stall, and control the compressor out of service；It is more than institute in the running current for judging the compressor
When stating the first predetermined current, determine that stall does not occur for the outdoor fan.
It is used for the control method of air conditioner according to an embodiment of the invention, by small in the running current for judging compressor
When the first predetermined current, stall occurs for true outdoor fan, and controls compressor out of service, it is to avoid compressor exists
Outdoor fan occur stall when continue to operation the occurrence of；Simultaneously by being more than the in the running current for judging compressor
During one predetermined current, determine that stall does not occur for outdoor fan, ensured the reliability of compressor operating.
According to one embodiment of present invention, in addition to：Detect any wink of the compressor in predetermined running duration
When running current, and any instantaneous running current is set to the running current of the compressor；Or detect the compressor
The average running current of any time period in predetermined running duration, and the average running current is set to the fortune of the compressor
Row electric current.Wherein, the predetermined running duration is preferably 0s to 600s.
According to one embodiment of present invention, after it is determined that stall do not occur for the outdoor fan, in addition to：Judge institute
Whether the running current for stating compressor is less than or equal to the second predetermined current for being used for protecting the air conditioner normally to run；Sentencing
When the running current of the fixed compressor is less than or equal to second predetermined current, the compressor is controlled to remain on, it is no
Then, control the compressor out of service；Wherein, second predetermined current is more than first predetermined current.
It is used for the control method of air conditioner according to an embodiment of the invention, when outdoor fan occurs without stall risk,
Air conditioner may cause the running current of compressor to be mutated due to other failure factors, so the fortune by judging compressor
Whether row electric current, which is less than or equal to, is used to protect the second predetermined current that air conditioner is normally run, and in the operation for judging compressor
When electric current is less than or equal to the second predetermined current, control compressor is remained on, so as to further improve compressor operating
Reliability, extends the service life of compressor.
A kind of embodiment according to the second aspect of the invention, it is proposed that control device for air conditioner, including：Detection
Unit, in a chiller mode or during dehumidification mode operation, detecting the running current of the compressor in the air conditioner；First
Judging unit, for judge the running current of the compressor with for determining whether the outdoor fan of the air conditioner blocks up
The size of the first predetermined current turned, to generate judged result；Processing unit, for according to the judged result, it is determined that described
Whether outdoor fan occurs stall, is controlled with the running status to the compressor.
According to an embodiment of the invention be used for air conditioner control device, by air conditioner in a chiller mode or dehumidifying
During mode operation, determine whether the outdoor fan of the air conditioner occurs with being used for according to the running current of the compressor detected
The judgement of the size of first predetermined current of stall, determines whether outdoor fan occurs stall so that can carry out phase in time
Close prompting or directly take safeguard measure, so as to avoid outdoor fan once occurring the feelings that stall will cause to damage to compressor
The generation of condition.
The control device for air conditioner according to the abovementioned embodiments of the present invention, can also have following technical characteristic：
According to one embodiment of present invention, in addition to：Second judging unit, for judging that the voltage of the compressor is
It is no in predetermined voltage range；First judging unit in second judging unit specifically for judging the compressor
Voltage in the predetermined voltage range when, judge the big of the running current of the compressor and first predetermined current
It is small.
It is used for the control device of air conditioner according to an embodiment of the invention, generally, the voltage of compressor is at certain
Whether when in individual scope, the probability that stall occurs for outdoor fan can be bigger, so by judging the voltage of compressor in default electricity
In the range of pressure (such as 200v to 240v), and when judging that the voltage of compressor is in predetermined voltage range, then perform judgement compression
The step of size of the running current of machine and the first predetermined current, so as to reduce determination range, the computing for reducing system is born
Load, while reducing the probability of erroneous judgement, improves the accuracy of judgement.
According to one embodiment of present invention, the processing unit includes：First control unit, for sentencing described first
When disconnected unit judges that the running current of the compressor is less than or equal to first predetermined current, the outdoor fan hair is determined
Raw stall, and control the compressor out of service；Second control unit, for judging the pressure in first judging unit
When the running current of contracting machine is more than first predetermined current, determine that stall does not occur for the outdoor fan.
It is used for the control device of air conditioner according to an embodiment of the invention, by small in the running current for judging compressor
When the first predetermined current, stall occurs for true outdoor fan, and controls compressor out of service, it is to avoid compressor exists
Outdoor fan occur stall when continue to operation the occurrence of；Simultaneously by being more than the in the running current for judging compressor
During one predetermined current, determine that stall does not occur for outdoor fan, ensured the reliability of compressor operating.
According to one embodiment of present invention, the detection unit specifically for：Detect the compressor in predetermined running
Any instantaneous running current in duration, and any instantaneous running current is set to the running current of the compressor；Or
The average running current of compressor any time period in predetermined running duration is detected, and the average running current is set to
The running current of the compressor.Wherein, the predetermined running duration is preferably 0s to 600s.
According to one embodiment of present invention, in addition to：3rd judging unit, for being determined in second control unit
The outdoor fan does not occur after stall, and judging whether the running current of the compressor is less than or equal to is used to protect described
The second predetermined current that air conditioner is normally run；Second control unit is additionally operable to, and institute is judged in the 3rd judging unit
When the running current for stating compressor is less than or equal to second predetermined current, the compressor is controlled to remain on, otherwise, control
Make the compressor out of service, wherein, second predetermined current is more than first predetermined current.
It is used for the control device of air conditioner according to an embodiment of the invention, when outdoor fan occurs without stall risk,
Air conditioner may cause the running current of compressor to be mutated due to other failure factors, so the fortune by judging compressor
Whether row electric current, which is less than or equal to, is used to protect the second predetermined current that air conditioner is normally run, and in the operation for judging compressor
When electric current is less than or equal to the second predetermined current, control compressor is remained on, so as to further improve compressor operating
Reliability, extends the service life of compressor.
A kind of embodiment according to the third aspect of the invention we, it is also proposed that air conditioner, including：As appointed in above-mentioned embodiment
The control device for air conditioner described in one.
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 according to an embodiment of the invention for air conditioner；
Fig. 2 shows the schematic block diagram for the control device for being used for air conditioner according to an embodiment of the invention；
Fig. 3 shows the schematic block diagram of air conditioner according to an embodiment of the invention；
Fig. 4 shows the schematic flow diagram of the control method for 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.
Fig. 1 shows the schematic flow diagram of the control method according to an embodiment of the invention for air conditioner.
As shown in figure 1, the control method according to an embodiment of the invention for air conditioner, including：
Step 102, in a chiller mode or during dehumidification mode operation, the operation electricity of the compressor is detected in the air conditioner
Stream；
Step 104, judge that the running current of the compressor determines whether the outdoor fan of the air conditioner is sent out with being used for
The size of first predetermined current of raw stall, to generate judged result；
Step 106, according to the judged result, determine whether the outdoor fan occurs stall, with to the compressor
Running status be controlled.
By air conditioner in a chiller mode or dehumidification mode run when, according to the running current of the compressor detected with
For determining whether the outdoor fan of the air conditioner occurs the judgement of the size of the first predetermined current of stall, it is determined that outdoor wind
Whether machine occurs stall so that can carry out related prompting in time or directly take safeguard measure, so as to avoid outdoor fan
Once occur stall compressor will be caused damage the occurrence of.
The control method for air conditioner according to the abovementioned embodiments of the present invention, can also have following technical characteristic：
According to one embodiment of present invention, before the step 104, in addition to：Judge the voltage of the compressor
Whether in predetermined voltage range；When judging that the voltage of the compressor is in the predetermined voltage range, sentence described in execution
Break the compressor running current and the first predetermined current size the step of.
Generally, when the voltage of compressor is in the range of some, the probability that stall occurs for outdoor fan can be bigger, institute
With the voltage by judging compressor whether in predetermined voltage range (such as 200v to 240v), and in the voltage for judging compressor
When in predetermined voltage range, then the step of perform the size of the running current for judging compressor and the first predetermined current, so that
Determination range is reduced, the computational burden of system is reduced, while reducing the probability of erroneous judgement, the accuracy of judgement is improved.
According to one embodiment of present invention, the step 106 is specifically included：Judging the running current of the compressor
During less than or equal to first predetermined current, determine that stall occurs for the outdoor fan, and control the compressor to stop fortune
OK；When the running current for judging the compressor is more than first predetermined current, determine that the outdoor fan is not blocked up
Turn.
During by being less than or equal to the first predetermined current in the running current for judging compressor, true outdoor fan occurs stifled
Turn, and control compressor out of service, it is to avoid compressor continues to the hair of the situation of operation when stall occurs for outdoor fan
It is raw；When simultaneously by being more than the first predetermined current in the running current for judging compressor, determine that stall does not occur for outdoor fan, protect
The reliability of compressor operating is hindered.
According to one embodiment of present invention, in addition to：Detect any wink of the compressor in predetermined running duration
When running current, and any instantaneous running current is set to the running current of the compressor；Or detect the compressor
The average running current of any time period in predetermined running duration, and the average running current is set to the fortune of the compressor
Row electric current.Wherein, the predetermined running duration is preferably 0s to 600s.
According to one embodiment of present invention, after it is determined that stall do not occur for the outdoor fan, in addition to：Judge institute
Whether the running current for stating compressor is less than or equal to the second predetermined current for being used for protecting the air conditioner normally to run；Sentencing
When the running current of the fixed compressor is less than or equal to second predetermined current, the compressor is controlled to remain on, it is no
Then, control the compressor out of service；Wherein, second predetermined current is more than first predetermined current.
When outdoor fan occurs without stall risk, air conditioner may cause compressor due to other failure factors
Running current is mutated, so being used to protect air conditioner normally to run by judging whether the running current of compressor is less than or equal to
The second predetermined current, and judge compressor running current be less than or equal to the second predetermined current when, control compressor protect
Operation is held, so as to further improve the reliability of compressor operating, extends the service life of compressor.
Fig. 2 shows the schematic block diagram for the control device for being used for air conditioner according to an embodiment of the invention.
As shown in Fig. 2 it is used for the control device 200 of air conditioner according to an embodiment of the invention, including：Detection unit
202, in a chiller mode or during dehumidification mode operation, detecting the running current of the compressor in the air conditioner；First
Judging unit 204, for judge the running current of the compressor with for determining whether the outdoor fan of the air conditioner is sent out
The size of first predetermined current of raw stall, to generate judged result；Processing unit 206, for according to the judged result, really
Whether the fixed outdoor fan occurs stall, is controlled with the running status to the compressor.
By air conditioner in a chiller mode or dehumidification mode run when, according to the running current of the compressor detected with
For determining whether the outdoor fan of the air conditioner occurs the judgement of the size of the first predetermined current of stall, it is determined that outdoor wind
Whether machine occurs stall so that can carry out related prompting in time or directly take safeguard measure, so as to avoid outdoor fan
Once occur stall compressor will be caused damage the occurrence of.
The control device 200 for air conditioner according to the abovementioned embodiments of the present invention, can also have following technology special
Levy：
According to one embodiment of present invention, in addition to：Second judging unit 208, the electricity for judging the compressor
Whether pressure is in predetermined voltage range；First judging unit 204 in second judging unit 208 specifically for judging
When the voltage of the compressor is in the predetermined voltage range, the running current and described first for judging the compressor are preset
The size of electric current.
Generally, when the voltage of compressor is in the range of some, the probability that stall occurs for outdoor fan can be bigger, institute
With the voltage by judging compressor whether in predetermined voltage range (such as 200v to 240v), and in the voltage for judging compressor
When in predetermined voltage range, then the step of perform the size of the running current for judging compressor and the first predetermined current, so that
Determination range is reduced, the computational burden of system is reduced, while reducing the probability of erroneous judgement, the accuracy of judgement is improved.
According to one embodiment of present invention, the processing unit 206 includes：First control unit 2062, in institute
State the first judging unit 204 judge the compressor running current be less than or equal to first predetermined current when, determine institute
State outdoor fan and occur stall, and control the compressor out of service；Second control unit 2064, for sentencing described first
When disconnected unit 204 judges that the running current of the compressor is more than first predetermined current, determine that the outdoor fan is not sent out
Raw stall.
During by being less than or equal to the first predetermined current in the running current for judging compressor, true outdoor fan occurs stifled
Turn, and control compressor out of service, it is to avoid compressor continues to the hair of the situation of operation when stall occurs for outdoor fan
It is raw；When simultaneously by being more than the first predetermined current in the running current for judging compressor, determine that stall does not occur for outdoor fan, protect
The reliability of compressor operating is hindered.
According to one embodiment of present invention, the detection unit 202 specifically for：Detect the compressor in predetermined fortune
Any instantaneous running current in row duration, and any instantaneous running current is set to the running current of the compressor；
Or the average running current of detection compressor any time period in predetermined running duration, and the average running current is set
For the running current of the compressor.Wherein, the predetermined running duration is preferably 0s to 600s.
According to one embodiment of present invention, in addition to：3rd judging unit 210, in second control unit
The 2064 determination outdoor fans do not occur after stall, and judging whether the running current of the compressor is less than or equal to is used for
Protect the second predetermined current that the air conditioner is normally run；Second control unit 2064 is additionally operable to, and is sentenced the described 3rd
When disconnected unit 210 judges that the running current of the compressor is less than or equal to second predetermined current, the compressor is controlled
Remain on, otherwise, control the compressor out of service, wherein, second predetermined current is more than the described first default electricity
Stream.
When outdoor fan occurs without stall risk, air conditioner may cause compressor due to other failure factors
Running current is mutated, so being used to protect air conditioner normally to run by judging whether the running current of compressor is less than or equal to
The second predetermined current, and judge compressor running current be less than or equal to the second predetermined current when, control compressor protect
Operation is held, so as to further improve the reliability of compressor operating, extends the service life of compressor.
Fig. 3 shows the schematic block diagram of air conditioner according to an embodiment of the invention.
As shown in figure 3, air conditioner 300 according to an embodiment of the invention, including：It is used for air conditioner as shown in Figure 2
Control device 200.
Technical scheme is described further below in conjunction with Fig. 4.
As shown in figure 4, the control method for air conditioner according to another embodiment of the invention, is specifically included following
Step：
Step 402, air conditioner is in a chiller mode or dehumidification mode is run.
Step 404, the voltage of compressor is detected, and judges the voltage of compressor whether in predetermined voltage range, if so,
Perform step 406；Otherwise, terminate.Wherein, predetermined voltage range is 200v to 240v.
Step 406, the running current value I of compressor is detected, and whether I is judged≤the first setting value Is, if so, performing step
Rapid 408, otherwise, perform step 410.Wherein, running current value I is that compressor is arbitrarily averagely run for the moment in preset duration
Current value, or any instantaneous running current of the compressor in predetermined running duration, wherein, preset duration be preferably 0s extremely
600s。
Step 408, control compressor is out of service.
Step 410, judge compressor running current value I whether≤the second setting value Ib, if so, performing step 412；It is no
Then, step 408 is performed.Wherein, Ib is the protective current value of air conditioner, and Ib ＞ Is.
Step 412, control compressor is remained on.
Above-mentioned steps constitute the optimal technical scheme of the present invention, wherein it is possible to omit in step 404 and step 410
Any one or more step, when omit step 410 when, step 406 judge running current value I ＞ the first setting value Is when, directly
Connect execution step 412.In addition, after step 408 control compressor is out of service, until air conditioner restarting, then again
Detected.
Technical scheme is described in detail above in association with accompanying drawing, and the present invention, which is proposed, a kind of new is used for air conditioner
Control program, whether can occur stall, and it is determined that stall can occur for outdoor fan if can determine the outdoor fan of air conditioner
When, control compressor is out of service in time, so as to avoid the feelings that compressor continues to operation when stall occurs for outdoor fan
The generation of condition, has ensured the reliability of compressor operating, extends the service life of compressor.
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 (10)
1. a kind of control method for air conditioner, it is characterised in that including：
The air conditioner in a chiller mode or dehumidification mode operation when, detect compressor running current；
Judge that the running current of the compressor determines whether the outdoor fan of the air conditioner occurs the first of stall with being used for
The size of predetermined current, to generate judged result；
According to the judged result, determine whether the outdoor fan occurs stall, entered with the running status to the compressor
Row control.
2. the control method according to claim 1 for air conditioner, it is characterised in that judging the fortune of the compressor
The step of whether row electric current occurs the size of the first predetermined current of stall with the outdoor fan for determining the air conditioner it
Before, in addition to：
Judge the voltage of the compressor whether in predetermined voltage range；
When judging that the voltage of the compressor is in the predetermined voltage range, the operation for judging the compressor is performed
The step of size of electric current and the first predetermined current.
3. the control method according to claim 1 or 2 for air conditioner, it is characterised in that according to the judged result,
Determine that the step of whether outdoor fan occurs stall specifically includes：
When the running current for judging the compressor is less than or equal to first predetermined current, the outdoor fan hair is determined
Raw stall, and control the compressor out of service；
When the running current for judging the compressor is more than first predetermined current, determine that the outdoor fan is not blocked up
Turn.
4. the control method according to claim 1 or 2 for air conditioner, it is characterised in that also include：
Detect any instantaneous running current of the compressor in predetermined running duration, and by any instantaneous running current
It is set to the running current of the compressor；Or
Detect the average running current of compressor any time period in predetermined running duration, and by the average running current
It is set to the running current of the compressor.
5. the control method according to claim 3 for air conditioner, it is characterised in that it is determined that the outdoor fan not
After generation stall, in addition to：
Judge whether the running current of the compressor is pre- less than or equal to be used to protect the air conditioner normally to run second
If electric current；
When the running current for judging the compressor is less than or equal to second predetermined current, the compressor is controlled to keep
Operation, otherwise, controls the compressor out of service；
Wherein, second predetermined current is more than first predetermined current.
6. a kind of control device for air conditioner, it is characterised in that including：
Detection unit, for the air conditioner in a chiller mode or dehumidification mode operation when, detect compressor running current；
First judging unit, be for judging the running current of the compressor with the outdoor fan for being used to determine the air conditioner
The size of no the first predetermined current for occurring stall, to generate judged result；
Processing unit, for according to the judged result, determining whether the outdoor fan occurs stall, with to the compressor
Running status be controlled.
7. the control device according to claim 6 for air conditioner, it is characterised in that also include：
Second judging unit, for judging the voltage of the compressor whether in predetermined voltage range；
First judging unit in second judging unit specifically for judging the voltage of the compressor described default
When in voltage range, the running current of the compressor and the size of first predetermined current are judged.
8. the control device for air conditioner according to claim 6 or 7, it is characterised in that the processing unit includes：
First control unit, for judging that it is described that the running current of the compressor is less than or equal in first judging unit
During the first predetermined current, determine that stall occurs for the outdoor fan, and control the compressor out of service；
Second control unit, for judging that it is pre- that the running current of the compressor is more than described first in first judging unit
If during electric current, determining that stall does not occur for the outdoor fan.
9. the control device for air conditioner according to claim 6 or 7, it is characterised in that the detection unit is specific
For：
Detect any instantaneous running current of the compressor in predetermined running duration, and by any instantaneous running current
It is set to the running current of the compressor；Or
Detect the average running current of compressor any time period in predetermined running duration, and by the average running current
It is set to the running current of the compressor.
10. the control device according to claim 8 for air conditioner, it is characterised in that also include：
3rd judging unit, after determining that stall do not occur for the outdoor fan in second control unit, judges institute
Whether the running current for stating compressor is less than or equal to the second predetermined current for being used for protecting the air conditioner normally to run；
Second control unit is additionally operable to, and is less than or is waited in the running current of the 3rd judging unit judgement compressor
When second predetermined current, control the compressor to remain on, otherwise, control the compressor out of service, wherein,
Second predetermined current is more than first predetermined current.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510791730.2A CN105241034B (en) | 2015-11-17 | 2015-11-17 | control method and control device for air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510791730.2A CN105241034B (en) | 2015-11-17 | 2015-11-17 | control method and control device for air conditioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105241034A CN105241034A (en) | 2016-01-13 |
| CN105241034B true CN105241034B (en) | 2017-10-13 |
Family
ID=55038776
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510791730.2A Active CN105241034B (en) | 2015-11-17 | 2015-11-17 | control method and control device for air conditioner |
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| Country | Link |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN202883418U (en) * | 2012-09-24 | 2013-04-17 | 宁波奥克斯空调有限公司 | Failure detection device for outdoor fan of air conditioner |
| CN103940039A (en) * | 2014-04-03 | 2014-07-23 | 美的集团股份有限公司 | Air conditioner and judgment method of operating state of air conditioner |
| CN104279150A (en) * | 2013-07-10 | 2015-01-14 | 珠海格力电器股份有限公司 | Reversal detection method and reversal detection device of air conditioner compressor |
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| JPS6262147A (en) * | 1985-09-12 | 1987-03-18 | Sharp Corp | Control device for air-conditioning machine |
| JPH031032A (en) * | 1989-05-26 | 1991-01-07 | Toshiba Corp | Control device for heat pump type air conditioner |
| JPH0544981A (en) * | 1991-08-08 | 1993-02-23 | Toshiba Corp | Detecting method for abnormality of outdoor fan motor for air conditioner |
| KR101929854B1 (en) * | 2012-08-21 | 2018-12-17 | 삼성전자주식회사 | Diagnosis method of air conditioner |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN202883418U (en) * | 2012-09-24 | 2013-04-17 | 宁波奥克斯空调有限公司 | Failure detection device for outdoor fan of air conditioner |
| CN104279150A (en) * | 2013-07-10 | 2015-01-14 | 珠海格力电器股份有限公司 | Reversal detection method and reversal detection device of air conditioner compressor |
| CN103940039A (en) * | 2014-04-03 | 2014-07-23 | 美的集团股份有限公司 | Air conditioner and judgment method of operating state of air conditioner |
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