CN105571071A - Air conditioner and control method and device of air conditioner - Google Patents

Air conditioner and control method and device of air conditioner Download PDF

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Publication number
CN105571071A
CN105571071A CN201610013038.1A CN201610013038A CN105571071A CN 105571071 A CN105571071 A CN 105571071A CN 201610013038 A CN201610013038 A CN 201610013038A CN 105571071 A CN105571071 A CN 105571071A
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CN
China
Prior art keywords
conditioner
air
compressor
running time
time
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Granted
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CN201610013038.1A
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Chinese (zh)
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CN105571071B (en
Inventor
吴君
张建华
戚文端
彭有新
齐涛
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Midea Group Co Ltd
GD Midea Air Conditioning Equipment Co Ltd
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Midea Group Co Ltd
Guangdong Midea Refrigeration Equipment Co Ltd
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Priority to CN201610013038.1A priority Critical patent/CN105571071B/en
Publication of CN105571071A publication Critical patent/CN105571071A/en
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Publication of CN105571071B publication Critical patent/CN105571071B/en
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/30Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/50Control or safety arrangements characterised by user interfaces or communication
    • F24F11/52Indication arrangements, e.g. displays

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

The invention discloses a control method of an air conditioner. The method comprises the following steps that when the air conditioner runs in a heating mode, the input voltage of the air conditioner is detected, and the input voltage of the air conditioner is judged; if it is judged that the input voltage of the air conditioner meets the preset voltage condition, the temperature of a coiler of an indoor heat exchanger is detected in real time; a running air gear of an indoor draught fan is detected, and the running time period of a compressor is obtained according to the running air gear of the indoor draught fan; and the coiler temperature change value in the running time period of the compressor is obtained according to the coiler temperature detected in real time, and whether an outdoor draught fan encounters the rotation stopping fault or not is judged according to the coiler temperature change value. According to the control method of the air conditioner, the rotation stopping of the outdoor draught fan can be prevented when the air conditioner runs in the heating mode, and the purpose of effectively protecting the compressor is achieved. The invention further discloses a control device of the air conditioner and the air conditioner.

Description

Air-conditioner and control method thereof and control device
Technical field
The present invention relates to air-conditioning technical field, particularly a kind of control method of air-conditioner, a kind of control device of air-conditioner and a kind of air-conditioner with this control device.
Background technology
Make air-conditioner set protection by detecting current value in correlation technique; but it is this by detecting the operating mode that current value can not protect unit when outdoor fan stall to the measure that air-conditioner set is protected effectively; and at outdoor fan stall or when damaging; compressor meeting frequent start-stop, thus the damage of compressor or life-span can be caused to reduce.
Therefore, also need to improve current air conditioner controlling technology.
Summary of the invention
The present invention is intended to solve one of technical problem in correlation technique at least to a certain extent.For this reason, first object of the present invention is to propose a kind of control method that can prevent the air-conditioner of outdoor fan stall when air-conditioner runs with heating mode, thus reaches the object of available protecting compressor.
Second object of the present invention is the control device proposing a kind of air-conditioner.3rd object of the present invention is to propose a kind of air-conditioner.
For achieving the above object, the control method of a kind of air-conditioner that first aspect present invention embodiment proposes, comprise the following steps: when described air-conditioner runs with heating mode, detect the input voltage of described air-conditioner, and the input voltage of described air-conditioner is judged; If judge that the input voltage of described air-conditioner meets predeterminated voltage condition, then detect the coil temperature of indoor heat exchanger in real time; The operation wind shelves of sensing chamber's inner blower, and section running time obtaining compressor according to the operation wind shelves of described indoor fan; And according to the coil temperature detected in real time obtain described compressor running time described coil temperature in section changing value, and judge whether outdoor fan stall fault occurs according to the changing value of described coil temperature.
According to the control method of the air-conditioner of the embodiment of the present invention, when air-conditioner runs with heating mode, first the input voltage of air-conditioner is detected, and the coil temperature of indoor heat exchanger is detected in real time when judging that the input voltage of air-conditioner meets predeterminated voltage condition, and then the operation wind shelves of sensing chamber's inner blower, and section running time of compressor is obtained according to the operation wind shelves of indoor fan, and according to the coil temperature detected in real time obtain compressor running time section inner coil pipe temperature changing value, finally judge whether outdoor fan stall fault occurs according to the changing value of coil temperature, thus effectively can detect whether outdoor fan stall fault occurs, make respective handling in time, avoid compressor because of outdoor fan stall frequent start-stop, available protecting compressor is not damaged, the service life of compressor can not be reduced.
According to one embodiment of present invention, when the changing value of described coil temperature is more than or equal to the first preset value, judge described outdoor fan generation stall fault, and it is out of service to control described air-conditioner.
According to one embodiment of present invention, when the changing value of described coil temperature is less than the first preset value, judge that stall fault does not occur described outdoor fan, and control described air-conditioner maintenance current operating conditions.
According to one embodiment of present invention, when the input voltage of described air-conditioner is in predeterminated voltage interval, judge that the input voltage of described air-conditioner meets described predeterminated voltage condition.
According to one embodiment of present invention, the described operation wind shelves according to described indoor fan obtain section running time of compressor, specifically comprise: when the operation wind shelves of described indoor fan are powerful wind shelves, using the Preset Time point after described compressor start as described compressor running time section sart point in time, and using the arbitrary time point in the first preset time period as described compressor running time section end time point, to obtain section running time of described compressor; When the operation wind shelves of described indoor fan are high wind shelves, using the Preset Time point after described compressor start as described compressor running time section sart point in time, and using the arbitrary time point in the second preset time period as described compressor running time section end time point, to obtain section running time of described compressor; When the operation wind shelves of described indoor fan be apoplexy shelves or low wind shelves time, using the Preset Time point after described compressor start as described compressor running time section sart point in time, and using the arbitrary time point in the 3rd preset time period as described compressor running time section end time point, to obtain section running time of described compressor.
For achieving the above object, the control device of a kind of air-conditioner that second aspect present invention embodiment proposes, comprising: voltage detection module, and described voltage detection module is used for the input voltage detecting described air-conditioner when described air-conditioner runs with heating mode; Voltage judge module, described voltage judge module is used for judging the input voltage of described air-conditioner; Temperature detecting module, described temperature detecting module is used for judging that the input voltage of described air-conditioner detects the coil temperature of indoor heat exchanger in real time when meeting predeterminated voltage condition at described voltage judge module; Wind shelves detection module, described wind shelves detection module is used for the operation wind shelves of sensing chamber's inner blower; Control module, described control module is used for section running time obtaining compressor according to the operation wind shelves of described indoor fan, and according to the coil temperature detected in real time obtain described compressor running time described coil temperature in section changing value, and judge whether outdoor fan stall fault occurs according to the changing value of described coil temperature.
According to the control device of the air-conditioner of the embodiment of the present invention, detected the input voltage of air-conditioner when air-conditioner runs with heating mode by voltage detection module, and temperature detecting module detects the coil temperature of indoor heat exchanger in real time when voltage judge module judges that the input voltage of air-conditioner meets predeterminated voltage condition, then the operation wind shelves of wind shelves detection module sensing chamber's inner blower again, control module obtains section running time of compressor according to the operation wind shelves of indoor fan, and according to the coil temperature detected in real time obtain compressor running time section inner coil pipe temperature changing value, and judge whether outdoor fan stall fault occurs according to the changing value of coil temperature, thus effectively can detect whether outdoor fan stall fault occurs, make respective handling in time, avoid compressor because of outdoor fan stall frequent start-stop, available protecting compressor is not damaged, the service life of compressor can not be reduced.
According to one embodiment of present invention, when the changing value of described coil temperature is more than or equal to the first preset value, described control module judges described outdoor fan generation stall fault, and it is out of service to control described air-conditioner.
According to one embodiment of present invention, when the changing value of described coil temperature is less than the first preset value, described control module judges that stall fault does not occur described outdoor fan, and controls described air-conditioner maintenance current operating conditions.
According to one embodiment of present invention, when the input voltage of described air-conditioner is in predeterminated voltage interval, described voltage judge module judges that the input voltage of described air-conditioner meets described predeterminated voltage condition.
According to one embodiment of present invention, when described control module obtains section running time of described compressor according to the operation wind shelves of described indoor fan, wherein, when the operation wind shelves of described indoor fan are powerful wind shelves, described control module using the Preset Time point after described compressor start as described compressor running time section sart point in time, and using the arbitrary time point in the first preset time period as described compressor running time section end time point, to obtain section running time of described compressor; When the operation wind shelves of described indoor fan are high wind shelves, described control module using the Preset Time point after described compressor start as described compressor running time section sart point in time, and using the arbitrary time point in the second preset time period as described compressor running time section end time point, to obtain section running time of described compressor; When the operation wind shelves of described indoor fan be apoplexy shelves or low wind shelves time, described control module using the Preset Time point after described compressor start as described compressor running time section sart point in time, and using the arbitrary time point in the 3rd preset time period as described compressor running time section end time point, to obtain section running time of described compressor.
In addition, the embodiment of the present invention also proposed a kind of air-conditioner, and it comprises the control device of above-mentioned air-conditioner.
The air-conditioner of the embodiment of the present invention; by the control device of above-mentioned air-conditioner; effectively can detect whether outdoor fan stall fault occurs; make respective handling in time; avoid compressor because of outdoor fan stall frequent start-stop; available protecting compressor is not damaged, and can not reduce the service life of compressor.
Accompanying drawing explanation
Fig. 1 is the flow chart of the control method of air-conditioner according to the embodiment of the present invention;
Fig. 2 is the flow chart of the control method of air-conditioner according to the present invention's specific embodiment; And
Fig. 3 is the block diagram of the control device of air-conditioner according to the embodiment of the present invention.
Detailed description of the invention
Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Be exemplary below by the embodiment be described with reference to the drawings, be intended to for explaining the present invention, and can not limitation of the present invention be interpreted as.
Describe the control method of air-conditioner according to embodiment of the present invention proposition, the control device of air-conditioner with reference to the accompanying drawings and there is the air-conditioner of this control device.
Fig. 1 is the flow chart of the control method of air-conditioner according to the embodiment of the present invention, and wherein, this air-conditioner comprises off-premises station and indoor set, and off-premises station comprises outdoor fan and compressor, and indoor set comprises indoor heat exchanger and indoor fan.As shown in Figure 1, the control method of this air-conditioner comprises the following steps:
S1, when air-conditioner runs with heating mode, detects the input voltage of air-conditioner, and judges the input voltage of air-conditioner.
Wherein, when air-conditioner start runs, detect the operational mode of air-conditioner, and when detecting that air-conditioner runs with heating mode, detecting the input voltage of air-conditioner, such as, can be the voltage of compressor.
According to one embodiment of present invention, compressor can be constant speed compressor, such as constant speed variable positive displacement compressor.
S2, if judge that the input voltage of air-conditioner meets predeterminated voltage condition, then detects the coil temperature of indoor heat exchanger in real time.
According to one embodiment of present invention, when the input voltage of air-conditioner is in predeterminated voltage interval such as 190-250V, judge that the input voltage of air-conditioner meets predeterminated voltage condition.
Namely say, when the input voltage of air-conditioner such as detects that the voltage of compressor is in this voltage range of 190-250V, detected the coil temperature of indoor heat exchanger by temperature sensor, wherein, the coil temperature detected can be instantaneous value, also can be the average temperature value in a period of time.
S3, the operation wind shelves of sensing chamber's inner blower, and section running time obtaining compressor according to the operation wind shelves of indoor fan.
According to one embodiment of present invention, section running time of compressor is obtained according to the operation wind shelves of indoor fan, specifically comprise: when the operation wind shelves of indoor fan are powerful wind shelves, using the arbitrary time point in 50s-100s after the Preset Time point such as compressor start after compressor start as compressor running time section sart point in time t1, and using the arbitrary time point in the first preset time period such as 180s-600s as compressor running time section end time point t2, to obtain section t1-t2 running time of compressor; When the operation wind shelves of indoor fan are high wind shelves, using the arbitrary time point in 50s-100s after the Preset Time point such as compressor start after compressor start as compressor running time section sart point in time t1, and using the arbitrary time point in the second preset time period such as 300s-900s as compressor running time section end time point t2, to obtain section t1-t2 running time of compressor; When the operation wind shelves of indoor fan be apoplexy shelves or low wind shelves time, using the arbitrary time point in 50s-100s after the Preset Time point such as compressor start after compressor start as compressor running time section sart point in time t1, and using the arbitrary time point in the 3rd preset time period such as 600s-1200s as compressor running time section end time point t2, to obtain section t1-t2 running time of compressor.
Wherein, after compressor start, timer starts timing, the running time of recording compressed machine.
S4, according to the coil temperature detected in real time obtain compressor running time section inner coil pipe temperature changing value, and judge whether outdoor fan stall fault occurs according to the changing value of coil temperature.
Wherein, the coil temperature T of indoor heat exchanger is detected in real time by temperature sensor, the coil temperature that such basis detects in real time just can obtain compressor running time section t1-t2 inner coil pipe temperature changing value, the temperature gap between the coil temperature TS2 that the coil temperature TS1 that namely the t1 moment is corresponding is corresponding with the t2 moment.
Further, when the changing value of coil temperature is more than or equal to the first preset value, outdoor fan generation stall fault is judged; and it is out of service to control air-conditioner; carry out stoppage protection, compressor is not restarted, and judges until just again carry out detection after air-conditioner power-off start.
According to one embodiment of present invention, when the changing value of coil temperature is less than the first preset value, judge that stall fault does not occur outdoor fan, and control air-conditioner maintenance current operating conditions, continue to run.
Specifically, as shown in Figure 2, the control method of above-mentioned air-conditioner comprises the following steps:
S201, start.
S202, detects the operational mode of air-conditioner, and when air-conditioner runs with heating mode, performs step S203.
S203, detects the voltage of compressor, and judges that whether the voltage of compressor is in given voltage range and predeterminated voltage interval.If so, step S204 is performed; If not, process ends.
S204, detects the coil temperature T of indoor heat exchanger in real time.
S205, the operation wind shelves of sensing chamber's inner blower.
S206, section t1-t2 running time of compressor is obtained according to the operation wind shelves of indoor fan, and the temperature gap △ T=TS1-TS2 calculated between coil temperature TS1 corresponding to the t1 moment coil temperature TS2 corresponding with the t2 moment, and judge whether △ T is more than or equal to the first preset value.If so, step S207 is performed; If not, step S208 is performed.
S207, judges outdoor fan generation stall fault, controls air-conditioner and carries out stoppage protection.
S208, keeps air-conditioner to continue to run.
In sum, according to the control method of the air-conditioner of the embodiment of the present invention, when air-conditioner runs with heating mode, first the input voltage of air-conditioner is detected, and the coil temperature of indoor heat exchanger is detected in real time when judging that the input voltage of air-conditioner meets predeterminated voltage condition, and then the operation wind shelves of sensing chamber's inner blower, and section running time of compressor is obtained according to the operation wind shelves of indoor fan, and according to the coil temperature detected in real time obtain compressor running time section inner coil pipe temperature changing value, finally judge whether outdoor fan stall fault occurs according to the changing value of coil temperature, thus effectively can detect whether outdoor fan stall fault occurs, make respective handling in time, avoid compressor because of outdoor fan stall frequent start-stop, available protecting compressor is not damaged, the service life of compressor can not be reduced.
Fig. 3 is the block diagram of the control device of air-conditioner according to the embodiment of the present invention.As shown in Figure 3, the control device of this air-conditioner comprises: voltage detection module 10, voltage judge module 20, temperature detecting module 30, wind shelves detection module 40 and control module 50.
Wherein, voltage detection module 10 is for detecting the input voltage of air-conditioner when air-conditioner runs with heating mode, voltage judge module 20 is for judging the input voltage of air-conditioner; Temperature detecting module 30 is for judging that at voltage judge module 20 input voltage of air-conditioner detects the coil temperature of indoor heat exchanger in real time when meeting predeterminated voltage condition, wind shelves detection module 40 is for the operation wind shelves of sensing chamber's inner blower, control module 50 is for obtaining section running time of compressor according to the operation wind shelves of described indoor fan, and according to the coil temperature detected in real time obtain described compressor running time described coil temperature in section changing value, and judge whether outdoor fan stall fault occurs according to the changing value of described coil temperature.
According to one embodiment of present invention, when the input voltage of air-conditioner is in predeterminated voltage interval such as 190-250V, voltage judge module 20 judges that the input voltage of air-conditioner meets predeterminated voltage condition.
Namely say, when the input voltage of air-conditioner such as detects that the voltage of compressor is in this voltage range of 190-250V, voltage judge module 20 judges that the input voltage of air-conditioner meets predeterminated voltage condition, then the coil temperature of indoor heat exchanger is detected by temperature sensor, wherein, the coil temperature detected can be instantaneous value, also can be the average temperature value in a period of time.
And, detected the coil temperature T of indoor heat exchanger in real time by temperature sensor after, the coil temperature that such basis detects in real time just can obtain compressor running time section t1-t2 inner coil pipe temperature changing value, the temperature gap between the coil temperature TS2 that the coil temperature TS1 that namely the t1 moment is corresponding is corresponding with the t2 moment.
According to one embodiment of present invention; when the changing value of coil temperature is more than or equal to the first preset value; control module 50 judges outdoor fan generation stall fault; and it is out of service to control air-conditioner; carry out stoppage protection; compressor is not restarted, and judges until just again carry out detection after air-conditioner power-off start.
In an embodiment of the present invention, compressor can be constant speed compressor, such as constant speed variable positive displacement compressor.
According to one embodiment of present invention, when the changing value of described coil temperature is less than the first preset value, control module 50 judges that stall fault does not occur described outdoor fan, and controls described air-conditioner maintenance current operating conditions, continues to run.
According to one embodiment of present invention, when control module 50 obtains section running time of compressor according to the operation wind shelves of indoor fan, wherein, when the operation wind shelves of indoor fan are powerful wind shelves, control module 50 using the arbitrary time point in 50s-100s after the Preset Time point such as compressor start after compressor start as compressor running time section sart point in time t1, and using the arbitrary time point in the first preset time period such as 180s-600s as compressor running time section end time point t2, to obtain section t1-t2 running time of compressor; When the operation wind shelves of indoor fan are high wind shelves, control module 50 using the arbitrary time point in 50s-100s after the Preset Time point such as compressor start after compressor start as compressor running time section sart point in time t1, and using the arbitrary time point in the second preset time period such as 300s-900s as compressor running time section end time point t2, to obtain section t1-t2 running time of compressor; When the operation wind shelves of indoor fan be apoplexy shelves or low wind shelves time, control module 50 using the arbitrary time point in 50s-100s after the Preset Time point such as compressor start after compressor start as compressor running time section sart point in time t1, and using the arbitrary time point in the 3rd preset time period such as 600s-1200s as compressor running time section end time point t2, to obtain section t1-t2 running time of compressor.
Wherein, after compressor start, timer starts timing, the running time of recording compressed machine.
According to the control device of the air-conditioner of the embodiment of the present invention, detected the input voltage of air-conditioner when air-conditioner runs with heating mode by voltage detection module, and temperature detecting module detects the coil temperature of indoor heat exchanger in real time when voltage judge module judges that the input voltage of air-conditioner meets predeterminated voltage condition, then the operation wind shelves of wind shelves detection module sensing chamber's inner blower again, control module obtains section running time of compressor according to the operation wind shelves of indoor fan, and according to the coil temperature detected in real time obtain compressor running time section inner coil pipe temperature changing value, and judge whether outdoor fan stall fault occurs according to the changing value of coil temperature, thus effectively can detect whether outdoor fan stall fault occurs, make respective handling in time, avoid compressor because of outdoor fan stall frequent start-stop, available protecting compressor is not damaged, the service life of compressor can not be reduced.
In addition, embodiments of the invention also proposed a kind of air-conditioner, and it comprises the control device of above-mentioned air-conditioner.
The air-conditioner of the embodiment of the present invention; by the control device of above-mentioned air-conditioner; effectively can detect whether outdoor fan stall fault occurs; make respective handling in time; avoid compressor because of outdoor fan stall frequent start-stop; available protecting compressor is not damaged, and can not reduce the service life of compressor.
In describing the invention, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", " outward ", " clockwise ", " counterclockwise ", " axis ", " radial direction ", orientation or the position relationship of the instruction such as " circumference " are based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore limitation of the present invention can not be interpreted as.
In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance or imply the quantity indicating indicated technical characteristic.Thus, be limited with " first ", the feature of " second " can express or impliedly comprise at least one this feature.In describing the invention, the implication of " multiple " is at least two, such as two, three etc., unless otherwise expressly limited specifically.
In the present invention, unless otherwise clearly defined and limited, the term such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or integral; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals or the interaction relationship of two elements, unless otherwise clear and definite restriction.For the ordinary skill in the art, above-mentioned term concrete meaning in the present invention can be understood as the case may be.
In the present invention, unless otherwise clearly defined and limited, fisrt feature second feature " on " or D score can be that the first and second features directly contact, or the first and second features are by intermediary mediate contact.And, fisrt feature second feature " on ", " top " and " above " but fisrt feature directly over second feature or oblique upper, or only represent that fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " below " and " below " can be fisrt feature immediately below second feature or tiltedly below, or only represent that fisrt feature level height is less than second feature.
In the description of this description, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present invention or example.In this manual, to the schematic representation of above-mentioned term not must for be identical embodiment or example.And the specific features of description, structure, material or feature can combine in one or more embodiment in office or example in an appropriate manner.In addition, when not conflicting, the feature of the different embodiment described in this description or example and different embodiment or example can carry out combining and combining by those skilled in the art.
Although illustrate and describe embodiments of the invention above, be understandable that, above-described embodiment is exemplary, can not be interpreted as limitation of the present invention, and those of ordinary skill in the art can change above-described embodiment within the scope of the invention, revises, replace and modification.

Claims (11)

1. a control method for air-conditioner, is characterized in that, comprises the following steps:
When described air-conditioner runs with heating mode, detect the input voltage of described air-conditioner, and the input voltage of described air-conditioner is judged;
If judge that the input voltage of described air-conditioner meets predeterminated voltage condition, then detect the coil temperature of indoor heat exchanger in real time;
The operation wind shelves of sensing chamber's inner blower, and section running time obtaining compressor according to the operation wind shelves of described indoor fan; And
According to the coil temperature detected in real time obtain described compressor running time described coil temperature in section changing value, and judge whether outdoor fan stall fault occurs according to the changing value of described coil temperature.
2. the control method of air-conditioner as claimed in claim 1, is characterized in that, when the changing value of described coil temperature is more than or equal to the first preset value, judge described outdoor fan generation stall fault, and it is out of service to control described air-conditioner.
3. the control method of air-conditioner as claimed in claim 1 or 2, is characterized in that, when the changing value of described coil temperature is less than the first preset value, judge that stall fault does not occur described outdoor fan, and controls described air-conditioner maintenance current operating conditions.
4. the control method of air-conditioner as claimed in claim 1, is characterized in that, when the input voltage of described air-conditioner is in predeterminated voltage interval, judges that the input voltage of described air-conditioner meets described predeterminated voltage condition.
5. the control method of air-conditioner as claimed in claim 1, is characterized in that, the described operation wind shelves according to described indoor fan obtain section running time of compressor, specifically comprise:
When the operation wind shelves of described indoor fan are powerful wind shelves, using the Preset Time point after described compressor start as described compressor running time section sart point in time, and using the arbitrary time point in the first preset time period as described compressor running time section end time point, to obtain section running time of described compressor;
When the operation wind shelves of described indoor fan are high wind shelves, using the Preset Time point after described compressor start as described compressor running time section sart point in time, and using the arbitrary time point in the second preset time period as described compressor running time section end time point, to obtain section running time of described compressor;
When the operation wind shelves of described indoor fan be apoplexy shelves or low wind shelves time, using the Preset Time point after described compressor start as described compressor running time section sart point in time, and using the arbitrary time point in the 3rd preset time period as described compressor running time section end time point, to obtain section running time of described compressor.
6. a control device for air-conditioner, is characterized in that, comprising:
Voltage detection module, described voltage detection module is used for the input voltage detecting described air-conditioner when described air-conditioner runs with heating mode;
Voltage judge module, described voltage judge module is used for judging the input voltage of described air-conditioner;
Temperature detecting module, described temperature detecting module is used for judging that the input voltage of described air-conditioner detects the coil temperature of indoor heat exchanger in real time when meeting predeterminated voltage condition at described voltage judge module;
Wind shelves detection module, described wind shelves detection module is used for the operation wind shelves of sensing chamber's inner blower;
Control module, described control module is used for section running time obtaining compressor according to the operation wind shelves of described indoor fan, and according to the coil temperature detected in real time obtain described compressor running time described coil temperature in section changing value, and judge whether outdoor fan stall fault occurs according to the changing value of described coil temperature.
7. the control device of air-conditioner as claimed in claim 6, it is characterized in that, when the changing value of described coil temperature is more than or equal to the first preset value, described control module judges described outdoor fan generation stall fault, and it is out of service to control described air-conditioner.
8. the control device of air-conditioner as claimed in claims 6 or 7, it is characterized in that, when the changing value of described coil temperature is less than the first preset value, described control module judges that stall fault does not occur described outdoor fan, and controls described air-conditioner maintenance current operating conditions.
9. the control device of air-conditioner as claimed in claim 6, is characterized in that, when the input voltage of described air-conditioner is in predeterminated voltage interval, described voltage judge module judges that the input voltage of described air-conditioner meets described predeterminated voltage condition.
10. the control device of air-conditioner as claimed in claim 6, is characterized in that, when described control module obtains section running time of described compressor according to the operation wind shelves of described indoor fan, wherein,
When the operation wind shelves of described indoor fan are powerful wind shelves, described control module using the Preset Time point after described compressor start as described compressor running time section sart point in time, and using the arbitrary time point in the first preset time period as described compressor running time section end time point, to obtain section running time of described compressor;
When the operation wind shelves of described indoor fan are high wind shelves, described control module using the Preset Time point after described compressor start as described compressor running time section sart point in time, and using the arbitrary time point in the second preset time period as described compressor running time section end time point, to obtain section running time of described compressor;
When the operation wind shelves of described indoor fan be apoplexy shelves or low wind shelves time, described control module using the Preset Time point after described compressor start as described compressor running time section sart point in time, and using the arbitrary time point in the 3rd preset time period as described compressor running time section end time point, to obtain section running time of described compressor.
11. 1 kinds of air-conditioners, is characterized in that, comprise the control device of the air-conditioner according to any one of claim 6-10.
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