CN105241034A - Control method and control device for air conditioner - Google Patents
Control method and control device for air conditioner Download PDFInfo
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- CN105241034A CN105241034A CN201510791730.2A CN201510791730A CN105241034A CN 105241034 A CN105241034 A CN 105241034A CN 201510791730 A CN201510791730 A CN 201510791730A CN 105241034 A CN105241034 A CN 105241034A
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- compressor
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- air
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/65—Electronic processing for selecting an operating mode
Abstract
The invention provides a control method and a control device for an air conditioner, wherein the control method for the air conditioner comprises the steps of: detecting the operation current of a compressor when the air conditioner is operated in a refrigeration mode or a dehumidification mode; judging the magnitude of operation current of the compressor and the magnitude of first preset current for determining if an outdoor fan of the air conditioner is stalled to generate a judgment result; and determining if the outdoor fan is stalled according to the judgment result to control the operation state of the compressor. The control method for the air conditioner can determine if the outdoor fan of the air conditioner is stalled, and can timely control the compressor to stop operating when determining that the outdoor fan is stalled, so that the condition of continuous operation of the compressor in the stalling of the outdoor fan is prevented, the operation reliability of the compressor is guaranteed, and the service life of the compressor is prolonged.
Description
Technical field
The present invention relates to air-conditioner technical field, in particular to a kind of control method for air-conditioner and a kind of control device for air-conditioner.
Background technology
Existing air-conditioner is in the process of startup optimization, when the outdoor fan generation stall of air-conditioner, compressor may still can remain in operation, this affects the performance of compressor itself undoubtedly, also can cause the frequent start-stop compressor of user's unknown cause simultaneously, thus cause minimizing in the service life of compressor even to damage, also there is no effective solution at present for this problem.
Therefore, the technical problem whether outdoor fan of air-conditioner stall occurs becomes urgently to be resolved hurrily can how be determined.
Summary of the invention
The present invention is intended at least to solve one of technical problem existed in prior art or correlation technique.
For this reason, one object of the present invention is to propose a kind of control program for air-conditioner newly, can determine whether the outdoor fan of air-conditioner stall can occur, and when determining that stall can occur outdoor fan, timely control compressor is out of service, thus avoid compressor still continues situation about running generation when outdoor fan generation stall, ensure the reliability of compressor operating, extend the service life of compressor.
Another object of the present invention is to propose a kind of air-conditioner.
For achieving the above object, embodiment according to a first aspect of the invention, proposes a kind of control method for air-conditioner, comprising: described air-conditioner in a chiller mode or dehumidification mode run time, detect the running current of described compressor; The running current judging described compressor with for determining whether the outdoor fan of described air-conditioner the size of the first predetermined current of stall occurs, to generate judged result; According to described judged result, determine whether described outdoor fan stall occurs, to control the running status of described compressor.
According to an embodiment of the invention for the control method of air-conditioner; by air-conditioner in a chiller mode or dehumidification mode run time; according to the running current of the compressor detected and for determining whether the outdoor fan of described air-conditioner the judgement of the size of the first predetermined current of stall occurs; determine whether outdoor fan stall occurs; make it possible to carry out relevant prompting in time or directly take safeguard measure, thus avoid outdoor fan once there is stall will cause the situation of damage generation to compressor.
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, the running current judging described compressor with for before determining whether the outdoor fan of described air-conditioner the step of the size of the first predetermined current of stall occurs, also comprise: judge that the voltage of described compressor is whether in predetermined voltage range; When judging that the voltage of described compressor is in described predetermined voltage range, perform the step of the running current of the described compressor of described judgement and the size of the first predetermined current.
According to an embodiment of the invention for the control method of air-conditioner, generally, when the voltage of compressor is within the scope of certain, the probability of outdoor fan generation stall can be larger, so by the voltage that judges compressor whether in predetermined voltage range (as 200v to 240v), and when judging that the voltage of compressor is in predetermined voltage range, perform the step judging the running current of compressor and the size of the first predetermined current again, thus reduce determination range, reduce the computational burden of system, reduce the probability of erroneous judgement simultaneously, improve the accuracy of judgement.
According to one embodiment of present invention, according to described judged result, determine that the step whether described outdoor fan stall occurs specifically comprises: when judging that the running current of described compressor is less than or equal to described first predetermined current, determine described outdoor fan generation stall, and it is out of service to control described compressor; When judging that the running current of described compressor is greater than described first predetermined current, determine that stall does not occur described outdoor fan.
According to an embodiment of the invention for the control method of air-conditioner, by when judging that the running current of compressor is less than or equal to the first predetermined current, true outdoor fan generation stall, and it is out of service to control compressor, avoid compressor still continues situation about running generation when outdoor fan generation stall; Simultaneously by when judging that the running current of compressor is greater than the first predetermined current, determining that stall does not occur outdoor fan, having ensured the reliability of compressor operating.
According to one embodiment of present invention, also comprise: detect the arbitrary instantaneous running current of described compressor in predetermined running duration, and described arbitrary instantaneous running current is set to the running current of described compressor; Or detect the average running current of described compressor any time period in predetermined running duration, and described average running current is set to the running current of described compressor.Wherein, described predetermined running duration is preferably 0s to 600s.
According to one embodiment of present invention, after determining that stall does not occur described outdoor fan, also comprise: judge whether the running current of described compressor is less than or equal to the second predetermined current normally run for the protection of described air-conditioner; When judging that the running current of described compressor is less than or equal to described second predetermined current, controlling described compressor and keeping running, otherwise, control described compressor out of service; Wherein, described second predetermined current is greater than described first predetermined current.
According to an embodiment of the invention for the control method of air-conditioner; when outdoor fan occurs without stall risk; air-conditioner may cause the running current of compressor to suddenly change due to other failure factors; so by judging whether the running current of compressor is less than or equal to the second predetermined current normally run for the protection of air-conditioner; and when judging that the running current of compressor is less than or equal to the second predetermined current; control compressor to keep running; thus improve the reliability of compressor operating further, extend the service life of compressor.
Embodiment according to a second aspect of the invention, proposes a kind of control device for air-conditioner, comprising: detecting unit, for described air-conditioner in a chiller mode or dehumidification mode run time, detect the running current of described compressor; First judging unit, for the running current that judges described compressor with for determining whether the outdoor fan of described air-conditioner the size of the first predetermined current of stall occurs, to generate judged result; Processing unit, for according to described judged result, determines whether described outdoor fan stall occurs, to control the running status of described compressor.
According to an embodiment of the invention for the control device of air-conditioner; by air-conditioner in a chiller mode or dehumidification mode run time; according to the running current of the compressor detected and for determining whether the outdoor fan of described air-conditioner the judgement of the size of the first predetermined current of stall occurs; determine whether outdoor fan stall occurs; make it possible to carry out relevant prompting in time or directly take safeguard measure, thus avoid outdoor fan once there is stall will cause the situation of damage generation to compressor.
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, also comprise: the second judging unit, for judging that the voltage of described compressor is whether in predetermined voltage range; Described first judging unit specifically for, when described second judging unit judges that the voltage of described compressor is in described predetermined voltage range, judge the running current of described compressor and the size of described first predetermined current.
According to an embodiment of the invention for the control device of air-conditioner, generally, when the voltage of compressor is within the scope of certain, the probability of outdoor fan generation stall can be larger, so by the voltage that judges compressor whether in predetermined voltage range (as 200v to 240v), and when judging that the voltage of compressor is in predetermined voltage range, perform the step judging the running current of compressor and the size of the first predetermined current again, thus reduce determination range, reduce the computational burden of system, reduce the probability of erroneous judgement simultaneously, improve the accuracy of judgement.
According to one embodiment of present invention, described processing unit comprises: the first control unit, for when described first judging unit judges that the running current of described compressor is less than or equal to described first predetermined current, determine described outdoor fan generation stall, and it is out of service to control described compressor; Second control unit, for when described first judging unit judges that the running current of described compressor is greater than described first predetermined current, determines that stall does not occur described outdoor fan.
According to an embodiment of the invention for the control device of air-conditioner, by when judging that the running current of compressor is less than or equal to the first predetermined current, true outdoor fan generation stall, and it is out of service to control compressor, avoid compressor still continues situation about running generation when outdoor fan generation stall; Simultaneously by when judging that the running current of compressor is greater than the first predetermined current, determining that stall does not occur outdoor fan, having ensured the reliability of compressor operating.
According to one embodiment of present invention, described detecting unit specifically for: detect the arbitrary instantaneous running current of described compressor in predetermined running duration, and described arbitrary instantaneous running current be set to the running current of described compressor; Or detect the average running current of described compressor any time period in predetermined running duration, and described average running current is set to the running current of described compressor.Wherein, described predetermined running duration is preferably 0s to 600s.
According to one embodiment of present invention, also comprise: the 3rd judging unit, after determining that stall does not occur described outdoor fan at described second control unit, judge whether the running current of described compressor is less than or equal to the second predetermined current normally run for the protection of described air-conditioner; Described second control unit also for, when described 3rd judging unit judges that the running current of described compressor is less than or equal to described second predetermined current, control described compressor to keep running, otherwise, control described compressor out of service, wherein, described second predetermined current is greater than described first predetermined current.
According to an embodiment of the invention for the control device of air-conditioner; when outdoor fan occurs without stall risk; air-conditioner may cause the running current of compressor to suddenly change due to other failure factors; so by judging whether the running current of compressor is less than or equal to the second predetermined current normally run for the protection of air-conditioner; and when judging that the running current of compressor is less than or equal to the second predetermined current; control compressor to keep running; thus improve the reliability of compressor operating further, extend the service life of compressor.
Embodiment according to a third aspect of the invention we, also proposed a kind of air-conditioner, comprising: the control device for air-conditioner according to any one of above-described embodiment.
Additional aspect of the present invention and advantage will part provide in the following description, and part will become obvious from the following description, or be recognized by practice of the present invention.
Accompanying drawing explanation
Above-mentioned and/or additional aspect of the present invention and advantage will become obvious and easy understand from accompanying drawing below combining to the description of embodiment, wherein:
Fig. 1 shows the schematic flow diagram of the control method for air-conditioner according to an embodiment of the invention;
Fig. 2 shows according to an embodiment of the invention for the schematic block diagram of the control device of air-conditioner;
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.
Detailed description of the invention
In order to more clearly understand above-mentioned purpose of the present invention, feature and advantage, below in conjunction with the drawings and specific embodiments, the present invention is further described in detail.It should be noted that, when not conflicting, the feature in the embodiment of the application and embodiment can combine mutually.
Set forth a lot of detail in the following description so that fully understand the present invention; but; the present invention can also adopt other to be different from other modes described here and implement, and therefore, protection scope of the present invention is not by the restriction of following public specific embodiment.
Fig. 1 shows the schematic flow diagram of the control method for air-conditioner according to an embodiment of the invention.
As shown in Figure 1, the control method for air-conditioner according to an embodiment of the invention, comprising:
Step 102, described air-conditioner in a chiller mode or dehumidification mode run time, detect the running current of described compressor;
Step 104, the running current judging described compressor with for determining whether the outdoor fan of described air-conditioner the size of the first predetermined current of stall occurs, to generate judged result;
Step 106, according to described judged result, determines whether described outdoor fan stall occurs, to control the running status of described compressor.
By air-conditioner in a chiller mode or dehumidification mode run time; according to the running current of the compressor detected and for determining whether the outdoor fan of described air-conditioner the judgement of the size of the first predetermined current of stall occurs; determine whether outdoor fan stall occurs; make it possible to carry out relevant prompting in time or directly take safeguard measure, thus avoid outdoor fan once there is stall will cause the situation of damage generation to compressor.
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 described step 104, also comprise: judge that the voltage of described compressor is whether in predetermined voltage range; When judging that the voltage of described compressor is in described predetermined voltage range, perform the step of the running current of the described compressor of described judgement and the size of the first predetermined current.
Generally, when the voltage of compressor is within the scope of certain, the probability of outdoor fan generation stall can be larger, so by the voltage that judges compressor whether in predetermined voltage range (as 200v to 240v), and when judging that the voltage of compressor is in predetermined voltage range, perform the step judging the running current of compressor and the size of the first predetermined current again, thus reduce determination range, reduce the computational burden of system, reduce the probability of erroneous judgement simultaneously, improve the accuracy of judgement.
According to one embodiment of present invention, described step 106 specifically comprises: when judging that the running current of described compressor is less than or equal to described first predetermined current, determine described outdoor fan generation stall, and it is out of service to control described compressor; When judging that the running current of described compressor is greater than described first predetermined current, determine that stall does not occur described outdoor fan.
By when judging that the running current of compressor is less than or equal to the first predetermined current, true outdoor fan generation stall, and it is out of service to control compressor, avoids compressor still continues situation about running generation when outdoor fan generation stall; Simultaneously by when judging that the running current of compressor is greater than the first predetermined current, determining that stall does not occur outdoor fan, having ensured the reliability of compressor operating.
According to one embodiment of present invention, also comprise: detect the arbitrary instantaneous running current of described compressor in predetermined running duration, and described arbitrary instantaneous running current is set to the running current of described compressor; Or detect the average running current of described compressor any time period in predetermined running duration, and described average running current is set to the running current of described compressor.Wherein, described predetermined running duration is preferably 0s to 600s.
According to one embodiment of present invention, after determining that stall does not occur described outdoor fan, also comprise: judge whether the running current of described compressor is less than or equal to the second predetermined current normally run for the protection of described air-conditioner; When judging that the running current of described compressor is less than or equal to described second predetermined current, controlling described compressor and keeping running, otherwise, control described compressor out of service; Wherein, described second predetermined current is greater than described first predetermined current.
When outdoor fan occurs without stall risk; air-conditioner may cause the running current of compressor to suddenly change due to other failure factors; so by judging whether the running current of compressor is less than or equal to the second predetermined current normally run for the protection of air-conditioner; and when judging that the running current of compressor is less than or equal to the second predetermined current; control compressor to keep running; thus improve the reliability of compressor operating further, extend the service life of compressor.
Fig. 2 shows according to an embodiment of the invention for the schematic block diagram of the control device of air-conditioner.
As shown in Figure 2, according to an embodiment of the invention for the control device 200 of air-conditioner, comprising: detecting unit 202, for described air-conditioner in a chiller mode or dehumidification mode run time, detect the running current of described compressor; First judging unit 204, for the running current that judges described compressor with for determining whether the outdoor fan of described air-conditioner the size of the first predetermined current of stall occurs, to generate judged result; Processing unit 206, for according to described judged result, determines whether described outdoor fan stall occurs, to control the running status of described compressor.
By air-conditioner in a chiller mode or dehumidification mode run time; according to the running current of the compressor detected and for determining whether the outdoor fan of described air-conditioner the judgement of the size of the first predetermined current of stall occurs; determine whether outdoor fan stall occurs; make it possible to carry out relevant prompting in time or directly take safeguard measure, thus avoid outdoor fan once there is stall will cause the situation of damage generation to compressor.
The control device 200 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, also comprise: the second judging unit 208, for judging that the voltage of described compressor is whether in predetermined voltage range; Described first judging unit 204 specifically for, when described second judging unit 208 judges that the voltage of described compressor is in described predetermined voltage range, judge the running current of described compressor and the size of described first predetermined current.
Generally, when the voltage of compressor is within the scope of certain, the probability of outdoor fan generation stall can be larger, so by the voltage that judges compressor whether in predetermined voltage range (as 200v to 240v), and when judging that the voltage of compressor is in predetermined voltage range, perform the step judging the running current of compressor and the size of the first predetermined current again, thus reduce determination range, reduce the computational burden of system, reduce the probability of erroneous judgement simultaneously, improve the accuracy of judgement.
According to one embodiment of present invention, described processing unit 206 comprises: the first control unit 2062, for when described first judging unit 204 judges that the running current of described compressor is less than or equal to described first predetermined current, determine described outdoor fan generation stall, and it is out of service to control described compressor; Second control unit 2064, for when described first judging unit 204 judges that the running current of described compressor is greater than described first predetermined current, determines that stall does not occur described outdoor fan.
By when judging that the running current of compressor is less than or equal to the first predetermined current, true outdoor fan generation stall, and it is out of service to control compressor, avoids compressor still continues situation about running generation when outdoor fan generation stall; Simultaneously by when judging that the running current of compressor is greater than the first predetermined current, determining that stall does not occur outdoor fan, having ensured the reliability of compressor operating.
According to one embodiment of present invention, described detecting unit 202 specifically for: detect the arbitrary instantaneous running current of described compressor in predetermined running duration, and described arbitrary instantaneous running current be set to the running current of described compressor; Or detect the average running current of described compressor any time period in predetermined running duration, and described average running current is set to the running current of described compressor.Wherein, described predetermined running duration is preferably 0s to 600s.
According to one embodiment of present invention, also comprise: the 3rd judging unit 210, after determining that stall does not occur described outdoor fan at described second control unit 2064, judge whether the running current of described compressor is less than or equal to the second predetermined current normally run for the protection of described air-conditioner; Described second control unit 2064 also for, when described 3rd judging unit 210 judges that the running current of described compressor is less than or equal to described second predetermined current, control described compressor to keep running, otherwise, control described compressor out of service, wherein, described second predetermined current is greater than described first predetermined current.
When outdoor fan occurs without stall risk; air-conditioner may cause the running current of compressor to suddenly change due to other failure factors; so by judging whether the running current of compressor is less than or equal to the second predetermined current normally run for the protection of air-conditioner; and when judging that the running current of compressor is less than or equal to the second predetermined current; control compressor to keep running; thus improve the reliability of compressor operating further, extend 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, comprising: as shown in Figure 2 for the control device 200 of air-conditioner.
Below in conjunction with Fig. 4, technical scheme of the present invention is described further.
As shown in Figure 4, the control method for air-conditioner according to another embodiment of the invention, specifically comprises the following steps:
Step 402, air-conditioner in a chiller mode or dehumidification mode run.
Step 404, detects the voltage of compressor, and judges that the voltage of compressor is whether in predetermined voltage range, if so, performs step 406; Otherwise, terminate.Wherein, predetermined voltage range is 200v to 240v.
Step 406, detects the running current value I of compressor, and whether judges I≤the first setting value Is, if so, performs step 408, otherwise, perform step 410.Wherein, running current value I is compressor any average running current value for the moment in preset duration, or the arbitrary instantaneous running current of compressor in predetermined running duration, and wherein, preset duration is preferably 0s to 600s.
Step 408, controls compressor out of service.
Step 410, judges running current value I whether≤the second setting value Ib of compressor, if so, performs step 412; Otherwise, perform step 408.Wherein, Ib is the protective current value of air-conditioner, and Ib > Is.
Step 412, controls compressor and keeps running.
Above-mentioned steps forms an optimal technical scheme of the present invention, wherein, one or more step in step 404 and step 410 can be omitted, when omitting step 410, when step 406 judges running current value I > the first setting value Is, directly perform step 412.In addition, step 408 control compressor out of service after, until air-conditioner restarts, then re-start detection.
More than be described with reference to the accompanying drawings technical scheme of the present invention, the present invention proposes a kind of control program for air-conditioner newly, can determine whether the outdoor fan of air-conditioner stall can occur, and when determining that stall can occur outdoor fan, timely control compressor is out of service, thus avoid compressor still continues situation about running generation when outdoor fan generation stall, ensure the reliability of compressor operating, extend the service life of compressor.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. for a control method for air-conditioner, it is characterized in that, comprising:
Described air-conditioner in a chiller mode or dehumidification mode run time, detect the running current of described compressor;
The running current judging described compressor with for determining whether the outdoor fan of described air-conditioner the size of the first predetermined current of stall occurs, to generate judged result;
According to described judged result, determine whether described outdoor fan stall occurs, to control the running status of described compressor.
2. the control method for air-conditioner according to claim 1, it is characterized in that, the running current judging described compressor with for before determining whether the outdoor fan of described air-conditioner the step of the size of the first predetermined current of stall occurs, also comprise:
Judge that the voltage of described compressor is whether in predetermined voltage range;
When judging that the voltage of described compressor is in described predetermined voltage range, perform the step of the running current of the described compressor of described judgement and the size of the first predetermined current.
3. the control method for air-conditioner according to claim 1 and 2, is characterized in that, according to described judged result, determines that the step whether described outdoor fan stall occurs specifically comprises:
When judging that the running current of described compressor is less than or equal to described first predetermined current, determine described outdoor fan generation stall, and it is out of service to control described compressor;
When judging that the running current of described compressor is greater than described first predetermined current, determine that stall does not occur described outdoor fan.
4. the control method for air-conditioner according to claim 1 and 2, is characterized in that, also comprise:
Detect the arbitrary instantaneous running current of described compressor in predetermined running duration, and described arbitrary instantaneous running current is set to the running current of described compressor; Or
Detect the average running current of described compressor any time period in predetermined running duration, and described average running current is set to the running current of described compressor.
5. the control method for air-conditioner according to claim 3, is characterized in that, after determining that stall does not occur described outdoor fan, also comprises:
Judge whether the running current of described compressor is less than or equal to the second predetermined current normally run for the protection of described air-conditioner;
When judging that the running current of described compressor is less than or equal to described second predetermined current, controlling described compressor and keeping running, otherwise, control described compressor out of service;
Wherein, described second predetermined current is greater than described first predetermined current.
6. for a control device for air-conditioner, it is characterized in that, comprising:
Detecting unit, for described air-conditioner in a chiller mode or dehumidification mode run time, detect the running current of described compressor;
First judging unit, for the running current that judges described compressor with for determining whether the outdoor fan of described air-conditioner the size of the first predetermined current of stall occurs, to generate judged result;
Processing unit, for according to described judged result, determines whether described outdoor fan stall occurs, to control the running status of described compressor.
7. the control device for air-conditioner according to claim 6, is characterized in that, also comprise:
Second judging unit, for judging that the voltage of described compressor is whether in predetermined voltage range;
Described first judging unit specifically for, when described second judging unit judges that the voltage of described compressor is in described predetermined voltage range, judge the running current of described compressor and the size of described first predetermined current.
8. the control device for air-conditioner according to claim 6 or 7, is characterized in that, described processing unit comprises:
First control unit, for when described first judging unit judges that the running current of described compressor is less than or equal to described first predetermined current, determine described outdoor fan generation stall, and it is out of service to control described compressor;
Second control unit, for when described first judging unit judges that the running current of described compressor is greater than described first predetermined current, determines that stall does not occur described outdoor fan.
9. the control device for air-conditioner according to claim 6 or 7, is characterized in that, described detecting unit specifically for:
Detect the arbitrary instantaneous running current of described compressor in predetermined running duration, and described arbitrary instantaneous running current is set to the running current of described compressor; Or
Detect the average running current of described compressor any time period in predetermined running duration, and described average running current is set to the running current of described compressor.
10. the control device for air-conditioner according to claim 8, is characterized in that, also comprise:
3rd judging unit, after determining that stall does not occur described outdoor fan at described second control unit, judges whether the running current of described compressor is less than or equal to the second predetermined current normally run for the protection of described air-conditioner;
Described second control unit also for, when described 3rd judging unit judges that the running current of described compressor is less than or equal to described second predetermined current, control described compressor to keep running, otherwise, control described compressor out of service, wherein, described second predetermined current is greater than described first predetermined current.
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CN110006150A (en) * | 2019-03-25 | 2019-07-12 | 青岛海尔空调电子有限公司 | The method, apparatus of the outdoor fan fault detection of air-conditioning, air-conditioning |
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CN110006150A (en) * | 2019-03-25 | 2019-07-12 | 青岛海尔空调电子有限公司 | The method, apparatus of the outdoor fan fault detection of air-conditioning, air-conditioning |
CN110006150B (en) * | 2019-03-25 | 2021-11-02 | 青岛海尔空调电子有限公司 | Method and device for detecting fault of outdoor fan of air conditioner and air conditioner |
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