CN106872076B - The diagnostic method of the temperature sensor of air-conditioning system and its outdoor heat exchanger - Google Patents
The diagnostic method of the temperature sensor of air-conditioning system and its outdoor heat exchanger Download PDFInfo
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- CN106872076B CN106872076B CN201710157926.5A CN201710157926A CN106872076B CN 106872076 B CN106872076 B CN 106872076B CN 201710157926 A CN201710157926 A CN 201710157926A CN 106872076 B CN106872076 B CN 106872076B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K15/00—Testing or calibrating of thermometers
- G01K15/007—Testing
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K2201/00—Application of thermometers in air-conditioning systems
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Abstract
The invention discloses a kind of diagnostic methods of the temperature sensor of outdoor heat exchanger, it include: the operational mode for obtaining air-conditioning system, and the coil temperature value of outdoor heat exchanger is detected by the temperature sensor of outdoor heat exchanger, or outdoor environment temperature value is also detected by outdoor environment temperature sensor；According to the operational mode of air-conditioning system instantly, and the coil temperature value got, judge whether coil temperature value meets preset condition, or the coil temperature value and outdoor environment temperature value that get, judges whether coil temperature value and outdoor environment temperature value meet preset condition；Meet preset condition in coil temperature value, or when coil temperature value and outdoor environment temperature value meet preset condition, then determines that the temperature sensor of outdoor heat exchanger breaks down.The invention also discloses a kind of air-conditioning systems.The present invention can be diagnosed to be the temperature sensor to break down in time, to prevent temperature detection inaccurate, to guarantee the reliability of air-conditioning system.
Description
Technical field
The present invention relates to refrigeration technology field more particularly to the temperature sensors of a kind of air-conditioning system and its outdoor heat exchanger
Diagnostic method.
Background technique
The outdoor unit of multi-online air-conditioning system is usually installed with temperature sensor in the coil pipe position of heat exchanger, which passes
Sensor is mainly used for controlling the blower of outdoor unit in cooling mode, and control defrosting in a heating mode, if on heat exchanger
Temperature sensor failure, then cause temperature detection inaccurate, to influence the reliability of air-conditioning system.
Summary of the invention
The main purpose of the present invention is to provide the diagnosis of a kind of air-conditioning system and its temperature sensor of outdoor heat exchanger
Method, it is intended to the temperature sensor to break down is diagnosed to be in time, to prevent temperature detection from inaccurate phenomenon occur, to guarantee
The reliability of air-conditioning system.
To achieve the above object, the present invention provides a kind of diagnostic method of the temperature sensor of outdoor heat exchanger, including with
Lower step:
The operational mode of air-conditioning system is obtained, and detects the disk of outdoor heat exchanger by the temperature sensor of outdoor heat exchanger
Tube temperature angle value, or outdoor environment temperature value is also detected by outdoor environment temperature sensor；
According to the operational mode of the air-conditioning system instantly, and the coil temperature value got, judge the disk
Whether tube temperature angle value meets preset condition, or the coil temperature value and outdoor environment temperature value that get, judges the disk
Whether tube temperature angle value and outdoor environment temperature value meet preset condition；
Meet preset condition in the coil temperature value, or meets in advance in the coil temperature value and outdoor environment temperature value
If when condition, then determining that the temperature sensor of the outdoor heat exchanger breaks down.
Preferably, the operational mode according to the air-conditioning system instantly, and the coil temperature value got,
Judge whether the coil temperature value meets preset condition, or the coil temperature value and outdoor environment temperature value that get,
Judge that the step of whether the coil temperature value and outdoor environment temperature value meet preset condition includes:
When the operational mode of the air-conditioning system instantly is refrigeration mode, if getting the coil temperature value, sentence
Whether the coil temperature value of breaking is on a declining curve in the given time；
Wherein, when judging that the coil temperature value is on a declining curve in the given time, then determine the coil temperature
Value meets preset condition.
Preferably, the operational mode according to the air-conditioning system instantly, and the coil temperature value got,
Judge whether the coil temperature value meets preset condition, or the coil temperature value and outdoor environment temperature value that get,
Judge that the step of whether the coil temperature value and outdoor environment temperature value meet preset condition includes:
When the operational mode of the air-conditioning system instantly is refrigeration mode, if getting the coil temperature value and room
External environment temperature value, the then size relation between the coil temperature value and outdoor environment temperature value；
Wherein, when judging that the coil temperature value is less than the outdoor environment temperature value, then determine the coil temperature
Meet preset condition.
Preferably, the operational mode according to the air-conditioning system instantly, and the coil temperature value got,
Judge whether the coil temperature value meets preset condition, or the coil temperature value and outdoor environment temperature value that get,
Judge that the step of whether the coil temperature value and outdoor environment temperature value meet preset condition includes:
When the operational mode of the air-conditioning system instantly is heating mode, if getting the coil temperature value, sentence
Whether the coil temperature value of breaking is in rising trend in the given time；
Wherein, when judging that the coil temperature value is in rising trend in the given time, then determine the coil temperature
Value meets preset condition.
Preferably, the operational mode according to the air-conditioning system instantly, and the coil temperature value got,
Judge whether the coil temperature value meets preset condition, or the coil temperature value and outdoor environment temperature value that get,
Judge that the step of whether the coil temperature value and outdoor environment temperature value meet preset condition includes:
When the operational mode of the air-conditioning system instantly is heating mode, if getting the coil temperature value and room
External environment temperature value, the then size relation between the coil temperature value and outdoor environment temperature value；
Wherein, when judging that the coil temperature value is greater than the outdoor environment temperature value, then determine the coil temperature
Meet preset condition.
To achieve the above object, the present invention also provides a kind of air-conditioning system, the air-conditioning system includes:
Detection module is detected for obtaining the operational mode of air-conditioning system, and by the temperature sensor of outdoor heat exchanger
The coil temperature value of outdoor heat exchanger, or outdoor environment temperature value is also detected by outdoor environment temperature sensor；
Judgment module, for the operational mode according to the air-conditioning system instantly, and the coil temperature got
Value, judges whether the coil temperature value meets preset condition, or the coil temperature value and outdoor environment temperature that get
Value, judges whether the coil temperature value and outdoor environment temperature value meet preset condition；
Determination module, for meeting preset condition in the coil temperature value, or in the coil temperature value and outdoor ring
When border temperature value meets preset condition, then determine that the temperature sensor of the outdoor heat exchanger breaks down.
Preferably, the judgment module is used for:
When the operational mode of the air-conditioning system instantly is refrigeration mode, if getting the coil temperature value, sentence
Whether the coil temperature value of breaking is on a declining curve in the given time；
Wherein, when the judgment module judges that the coil temperature value is on a declining curve in the given time, then described
Determination module determines that the coil temperature value meets preset condition.
Preferably, the judgment module is used for: when the operational mode of the air-conditioning system instantly is refrigeration mode, if obtaining
Get the coil temperature value and outdoor environment temperature value, then the coil temperature value and outdoor environment temperature value it
Between size relation；
Wherein, when the judgment module judges that the coil temperature value is less than the outdoor environment temperature value, then described
Determination module determines that the coil temperature meets preset condition.
Preferably, the judgment module is used for:
When the operational mode of the air-conditioning system instantly is heating mode, if getting the coil temperature value, sentence
Whether the coil temperature value of breaking is in rising trend in the given time；
Wherein, when the judgment module judges that the coil temperature value is in rising trend in the given time, then described
Determination module determines that the coil temperature value meets preset condition.
Preferably, the judgment module is used for:
When the operational mode of the air-conditioning system instantly is heating mode, if getting the coil temperature value and room
External environment temperature value, the then size relation between the coil temperature value and outdoor environment temperature value；
Wherein, when the judgment module judges that the coil temperature value is greater than the outdoor environment temperature value, then described
Determination module determines that the coil temperature meets preset condition.
The diagnostic method of the temperature sensor of air-conditioning system provided by the invention and its outdoor heat exchanger, by obtaining air-conditioning
The operational mode of system, and it is logical by the coil temperature value of the temperature sensor of outdoor heat exchanger detection outdoor heat exchanger, or also
Outdoor environment temperature sensor detection outdoor environment temperature value is crossed, then the operational mode according to the air-conditioning system instantly, with
And the coil temperature value got, judge whether the coil temperature value meets preset condition, or the disk got
Tube temperature angle value and outdoor environment temperature value, judge whether the coil temperature value and outdoor environment temperature value meet preset condition,
Meet preset condition in the coil temperature value, or meets preset condition in the coil temperature value and outdoor environment temperature value
When, then determine that the temperature sensor of the outdoor heat exchanger breaks down.In this way, the temperature to break down can be diagnosed to be in time
Sensor, to prevent temperature detection from inaccurate phenomenon occur, to guarantee the reliability of air-conditioning system.
Detailed description of the invention
Fig. 1 is the flow diagram of the diagnostic method first embodiment of the temperature sensor of outdoor heat exchanger of the present invention；
Fig. 2 is the flow diagram of the diagnostic method second embodiment of the temperature sensor of outdoor heat exchanger of the present invention；
Fig. 3 is the flow diagram of the diagnostic method 3rd embodiment of the temperature sensor of outdoor heat exchanger of the present invention；
Fig. 4 is the flow diagram of the diagnostic method fourth embodiment of the temperature sensor of outdoor heat exchanger of the present invention；
Fig. 5 is the flow diagram of the 5th embodiment of diagnostic method of the temperature sensor of outdoor heat exchanger of the present invention；
Fig. 6 is the functional block diagram of one embodiment of air-conditioning system of the present invention.
The embodiments will be further described with reference to the accompanying drawings for the realization, the function and the advantages of the object of the present invention.
Specific embodiment
It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not intended to limit the present invention.
Referring to Fig.1, in one embodiment, the diagnostic method of the temperature sensor of the outdoor heat exchanger includes following step
It is rapid:
Step S1, the operational mode of air-conditioning system is obtained, and is changed outside the temperature sensor sensing chamber for passing through outdoor heat exchanger
The coil temperature value of hot device, or outdoor environment temperature value is also detected by outdoor environment temperature sensor；
In the present embodiment, the operational mode of air-conditioning system include refrigeration mode, heating mode, dehumidification mode, defrosting mode,
Air supply pattern etc., the present invention hereafter it is main in a chiller mode be illustrated for heating mode.
Wherein, the temperature sensor of outdoor heat exchanger can be set in the import or export position of outdoor heat exchanger, may be used also
To be set between inlet and outlet position；And outdoor environment temperature sensor can be set and lean in the inner body wall of outdoor unit
The position in nearly outside.
The present invention can judge whether the temperature sensor of outdoor heat exchanger breaks down by two schemes, at the first
In scheme, it can be sentenced according only to the coil temperature value of the outdoor heat exchanger of the temperature sensor of outdoor heat exchanger detection
It is disconnected；In second scheme, outdoor environment temperature sensor detection outdoor environment temperature value can be combined with, and according to two temperature
Size relation between angle value is judged.
It should be understood that being implemented if only getting the coil temperature value of outdoor heat exchanger using the first scheme；If
When getting the coil temperature value of outdoor heat exchanger, outdoor environment temperature value is also got, then is implemented using second scheme.Tool
Body, after getting the coil temperature value of outdoor heat exchanger, if outdoor heat exchange has not been obtained within predetermined time such as 1min
The coil temperature value of device, then directly adopt the first scheme；If getting the coil temperature of outdoor heat exchanger in the given time
Value is then implemented using second scheme.Certainly, in other embodiments, the priority of both schemes can also be set, two
In the case that kind scheme can be implemented, it can be set and which kind of scheme preferentially taken；In order to ensure accuracy, this can also be integrated
Two kinds of embodiments.
Step S2, the operational mode according to the air-conditioning system instantly, and the coil temperature value got, judgement
Whether the coil temperature value meets preset condition, or the coil temperature value and outdoor environment temperature value that get, judgement
Whether the coil temperature value and outdoor environment temperature value meet preset condition；
In the present embodiment, in first scheme, whether the trend that preset condition can be set to coil temperature meets correspondence
The down or up trend presented under operational mode；In the second scenario, preset condition can be set to judge in corresponding fortune
Under row mode, whether the size relation of the coil temperature value and outdoor environment temperature value meets default size relation.
Step S3, meet preset condition in the coil temperature value, or in the coil temperature value and outdoor environment temperature
When value meets preset condition, then determine that the temperature sensor of the outdoor heat exchanger breaks down.
In the present embodiment, in the first scheme, if judging, the coil temperature value meets preset condition, can be determined that
The temperature sensor of the outdoor heat exchanger breaks down；In second scheme, if judging the coil temperature value and outdoor
Ambient temperature value meets preset condition, then determines that the temperature sensor of the outdoor heat exchanger breaks down.
The embodiment and priority of specific two schemes as described above, in addition, when implementing both schemes at the same time,
If two schemes combine, the result of judgement is different, any scheme of being subject to can be preset, in order to ensure testing result
Accuracy, detection can be re-started, if the result of repeated detection is inconsistent, need to be examined by other means
It surveys.
The diagnostic method of the temperature sensor of outdoor heat exchanger provided by the invention, by the operation mould for obtaining air-conditioning system
Formula, and by the coil temperature value of the temperature sensor of outdoor heat exchanger detection outdoor heat exchanger, or also pass through outdoor environment temperature
It spends sensor and detects outdoor environment temperature value, the then operational mode according to the air-conditioning system instantly, and the institute got
Coil temperature value is stated, judges whether the coil temperature value meets preset condition, or the coil temperature value got and room
External environment temperature value, judges whether the coil temperature value and outdoor environment temperature value meet preset condition, in the coil pipe temperature
Angle value meets preset condition, or when the coil temperature value and outdoor environment temperature value meet preset condition, then described in judgement
The temperature sensor of outdoor heat exchanger breaks down.In this way, the temperature sensor to break down can be diagnosed to be in time, to prevent
There is inaccurate phenomenon in temperature detection, to guarantee the reliability of air-conditioning system.
In the first embodiment, as shown in Fig. 2, on the basis of above-mentioned shown in FIG. 1, the step S2 includes:
Step S21, when the operational mode of the air-conditioning system instantly is refrigeration mode, if getting the coil temperature
Value, then judge whether the coil temperature value is on a declining curve in the given time；
In the present embodiment, when the operational mode of the air-conditioning system instantly is refrigeration mode, under normal circumstances, if outdoor
The temperature sensor of heat exchanger is normal, then the coil temperature that the temperature sensor of outdoor heat exchanger detects at this time, in the predetermined time
It is as in rising trend in answered in 5min.If on a declining curve in judging the coil temperature value in this time frame, show outdoor
The temperature sensor of heat exchanger occurs abnormal.
Accordingly, the step S3 then further comprises:
Step S31, when judging that the coil temperature value is on a declining curve in the given time, then determine the coil pipe temperature
Angle value meets preset condition.
It is on a declining curve in judging the coil temperature value in this time frame in the present embodiment, then determine the disk
Tube temperature angle value meets preset condition, and it is abnormal to show that the temperature sensor of outdoor heat exchanger occurs at this time.
In a second embodiment, as shown in figure 3, on the basis of above-mentioned shown in FIG. 1, the step S2 includes:
Step S22, when the operational mode of the air-conditioning system instantly is refrigeration mode, if getting the coil temperature
Value and outdoor environment temperature value, the then size relation between the coil temperature value and outdoor environment temperature value；
In the present embodiment, when the operational mode of the air-conditioning system instantly is refrigeration mode, under normal circumstances, get
Size relation between the coil temperature value and outdoor environment temperature value should be the coil temperature value greater than the outdoor
Ambient temperature value.If judging, the judgement coil temperature value is less than the outdoor environment temperature value, shows outdoor heat exchange
The temperature sensor of device occurs abnormal.
Accordingly, the step S3 then further comprises:
Step S32, when judging that the coil temperature value is less than the outdoor environment temperature value, then determine the coil pipe temperature
Degree meets preset condition.
In the present embodiment, when judging that the coil temperature value is less than the outdoor environment temperature value, then the disk is determined
Tube temperature degree meets preset condition, and it is abnormal to show that the temperature sensor of outdoor heat exchanger occurs at this time.
In the third embodiment, as shown in figure 4, on the basis of above-mentioned shown in FIG. 1, the step S2 includes:
Step S23, when the operational mode of the air-conditioning system instantly is heating mode, if getting the coil temperature
Value, then judge whether the coil temperature value is in rising trend in the given time；
In the present embodiment, when the operational mode of the air-conditioning system instantly is heating mode, under normal circumstances, if outdoor
The temperature sensor of heat exchanger is normal, then the coil temperature that the temperature sensor of outdoor heat exchanger detects at this time, in the predetermined time
It is as on a declining curve in answered in 5min.If in rising trend in judging the coil temperature value in this time frame, show outdoor
The temperature sensor of heat exchanger occurs abnormal.
Accordingly, the step S3 then further comprises:
Step S33, when judging that the coil temperature value is in rising trend in the given time, then determine the coil pipe temperature
Angle value meets preset condition.
It is in rising trend in judging the coil temperature value in this time frame in the present embodiment, then determine the disk
Tube temperature angle value meets preset condition, and it is abnormal to show that the temperature sensor of outdoor heat exchanger occurs at this time.
In the fourth embodiment, as shown in figure 5, on the basis of above-mentioned shown in FIG. 1, the step S2 includes:
Step S24, when the operational mode of the air-conditioning system instantly is heating mode, if getting the coil temperature
Value and outdoor environment temperature value, the then size relation between the coil temperature value and outdoor environment temperature value；
In the present embodiment, when the operational mode of the air-conditioning system instantly is heating mode, under normal circumstances, get
Size relation between the coil temperature value and outdoor environment temperature value should be the coil temperature value less than the outdoor
Ambient temperature value.If judging, the judgement coil temperature value is greater than the outdoor environment temperature value, shows outdoor heat exchange
The temperature sensor of device occurs abnormal.
Accordingly, the step S3 then further comprises:
Step S34, when judging that the coil temperature value is greater than the outdoor environment temperature value, then determine the coil pipe temperature
Degree meets preset condition.
In the present embodiment, when judging that the coil temperature value is greater than the outdoor environment temperature value, then the disk is determined
Tube temperature degree meets preset condition, and it is abnormal to show that the temperature sensor of outdoor heat exchanger occurs at this time.
To achieve the above object, in one embodiment, described the present invention also provides a kind of air-conditioning system 100 referring to Fig. 6
Air-conditioning system 100 includes:
Detection module 10 is examined for obtaining the operational mode of air-conditioning system, and by the temperature sensor of outdoor heat exchanger
The coil temperature value of outdoor heat exchanger is surveyed, or outdoor environment temperature value is also detected by outdoor environment temperature sensor；
In the present embodiment, the operational mode of air-conditioning system include refrigeration mode, heating mode, dehumidification mode, defrosting mode,
Air supply pattern etc., the present invention hereafter it is main in a chiller mode be illustrated for heating mode.
Wherein, the temperature sensor of outdoor heat exchanger can be set in the import or export position of outdoor heat exchanger, may be used also
To be set between inlet and outlet position；And outdoor environment temperature sensor can be set and lean in the inner body wall of outdoor unit
The position in nearly outside.
The present invention can judge whether the temperature sensor of outdoor heat exchanger breaks down by two schemes, at the first
In scheme, it can be sentenced according only to the coil temperature value of the outdoor heat exchanger of the temperature sensor of outdoor heat exchanger detection
It is disconnected；In second scheme, outdoor environment temperature sensor detection outdoor environment temperature value can be combined with, and according to two temperature
Size relation between angle value is judged.
It should be understood that being implemented if only getting the coil temperature value of outdoor heat exchanger using the first scheme；If
When getting the coil temperature value of outdoor heat exchanger, outdoor environment temperature value is also got, then is implemented using second scheme.Tool
Body, after getting the coil temperature value of outdoor heat exchanger, if outdoor heat exchange has not been obtained within predetermined time such as 1min
The coil temperature value of device, then directly adopt the first scheme；If getting the coil temperature of outdoor heat exchanger in the given time
Value is then implemented using second scheme.Certainly, in other embodiments, the priority of both schemes can also be set, two
In the case that kind scheme can be implemented, it can be set and which kind of scheme preferentially taken；In order to ensure accuracy, this can also be integrated
Two kinds of embodiments.
Judgment module 20, for the operational mode according to the air-conditioning system instantly, and the coil pipe temperature got
Angle value, judges whether the coil temperature value meets preset condition, or the coil temperature value and outdoor environment temperature that get
Angle value, judges whether the coil temperature value and outdoor environment temperature value meet preset condition；
In the present embodiment, in first scheme, whether the trend that preset condition can be set to coil temperature meets correspondence
The down or up trend presented under operational mode；In the second scenario, preset condition can be set to judge in corresponding fortune
Under row mode, whether the size relation of the coil temperature value and outdoor environment temperature value meets default size relation.
Determination module 30, for meeting preset condition in the coil temperature value, or in the coil temperature value and outdoor
When ambient temperature value meets preset condition, then determine that the temperature sensor of the outdoor heat exchanger breaks down.
In the present embodiment, in the first scheme, if judging, the coil temperature value meets preset condition, can be determined that
The temperature sensor of the outdoor heat exchanger breaks down；In second scheme, if judging the coil temperature value and outdoor
Ambient temperature value meets preset condition, then determines that the temperature sensor of the outdoor heat exchanger breaks down.
The embodiment and priority of specific two schemes as described above, in addition, when implementing both schemes at the same time,
If two schemes combine, the result of judgement is different, any scheme of being subject to can be preset, in order to ensure testing result
Accuracy, detection can be re-started, if the result of repeated detection is inconsistent, need to be examined by other means
It surveys.
Air-conditioning system provided by the invention, by obtaining the operational mode of air-conditioning system, and the temperature for passing through outdoor heat exchanger
The coil temperature value of sensor detection outdoor heat exchanger is spent, or outdoor environment temperature is also detected by outdoor environment temperature sensor
Value, the then operational mode according to the air-conditioning system instantly, and the coil temperature value got judge the coil pipe
Whether temperature value meets preset condition, or the coil temperature value and outdoor environment temperature value that get, judges the coil pipe
Whether temperature value and outdoor environment temperature value meet preset condition, meet preset condition in the coil temperature value, or described
When coil temperature value and outdoor environment temperature value meet preset condition, then determine that the temperature sensor of the outdoor heat exchanger occurs
Failure.In this way, it can be diagnosed to be the temperature sensor to break down in time, to prevent temperature detection from inaccurate phenomenon occur, from
And guarantee the reliability of air-conditioning system.
In the first embodiment, on the basis of above-mentioned shown in fig. 6, the judgment module 20 is used for:
When the operational mode of the air-conditioning system instantly is refrigeration mode, if getting the coil temperature value, sentence
Whether the coil temperature value of breaking is on a declining curve in the given time；
In the present embodiment, when the operational mode of the air-conditioning system instantly is refrigeration mode, under normal circumstances, if outdoor
The temperature sensor of heat exchanger is normal, then the coil temperature that the temperature sensor of outdoor heat exchanger detects at this time, in the predetermined time
It is as in rising trend in answered in 5min.If on a declining curve in judging the coil temperature value in this time frame, show outdoor
The temperature sensor of heat exchanger occurs abnormal.
Accordingly, when the judgment module judges that the coil temperature value is on a declining curve in the given time, then institute
It states determination module and determines that the coil temperature value meets preset condition.
It is on a declining curve in judging the coil temperature value in this time frame in the present embodiment, then determine the disk
Tube temperature angle value meets preset condition, and it is abnormal to show that the temperature sensor of outdoor heat exchanger occurs at this time.
In a second embodiment, on the basis of above-mentioned shown in fig. 6, the judgment module 20 is used for: in the air-conditioning system
When the operational mode of system instantly is refrigeration mode, if getting the coil temperature value and outdoor environment temperature value, compare
Size relation between the coil temperature value and outdoor environment temperature value；
In the present embodiment, when the operational mode of the air-conditioning system instantly is refrigeration mode, under normal circumstances, get
Size relation between the coil temperature value and outdoor environment temperature value should be the coil temperature value greater than the outdoor
Ambient temperature value.If judging, the judgement coil temperature value is less than the outdoor environment temperature value, shows outdoor heat exchange
The temperature sensor of device occurs abnormal.
Accordingly, when the judgment module judges that the coil temperature value is less than the outdoor environment temperature value, then institute
It states determination module and determines that the coil temperature meets preset condition.
In the present embodiment, when judging that the coil temperature value is less than the outdoor environment temperature value, then the disk is determined
Tube temperature degree meets preset condition, and it is abnormal to show that the temperature sensor of outdoor heat exchanger occurs at this time.
In the third embodiment, on the basis of above-mentioned shown in fig. 6, the judgment module 20 is used for:
When the operational mode of the air-conditioning system instantly is heating mode, if getting the coil temperature value, sentence
Whether the coil temperature value of breaking is in rising trend in the given time；
In the present embodiment, when the operational mode of the air-conditioning system instantly is heating mode, under normal circumstances, if outdoor
The temperature sensor of heat exchanger is normal, then the coil temperature that the temperature sensor of outdoor heat exchanger detects at this time, in the predetermined time
It is as on a declining curve in answered in 5min.If in rising trend in judging the coil temperature value in this time frame, show outdoor
The temperature sensor of heat exchanger occurs abnormal.
Accordingly, when the judgment module judges that the coil temperature value is in rising trend in the given time, then institute
It states determination module and determines that the coil temperature value meets preset condition.
It is in rising trend in judging the coil temperature value in this time frame in the present embodiment, then determine the disk
Tube temperature angle value meets preset condition, and it is abnormal to show that the temperature sensor of outdoor heat exchanger occurs at this time.
In the fourth embodiment, on the basis of above-mentioned shown in fig. 6, the judgment module 20 is used for:
When the operational mode of the air-conditioning system instantly is heating mode, if getting the coil temperature value and room
External environment temperature value, the then size relation between the coil temperature value and outdoor environment temperature value；
In the present embodiment, when the operational mode of the air-conditioning system instantly is heating mode, under normal circumstances, get
Size relation between the coil temperature value and outdoor environment temperature value should be the coil temperature value less than the outdoor
Ambient temperature value.If judging, the judgement coil temperature value is greater than the outdoor environment temperature value, shows outdoor heat exchange
The temperature sensor of device occurs abnormal.
Accordingly, when the judgment module judges that the coil temperature value is greater than the outdoor environment temperature value, then institute
It states determination module and determines that the coil temperature meets preset condition.
In the present embodiment, when judging that the coil temperature value is greater than the outdoor environment temperature value, then the disk is determined
Tube temperature degree meets preset condition, and it is abnormal to show that the temperature sensor of outdoor heat exchanger occurs at this time.
The above is only a preferred embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair
Equivalent structure or equivalent flow shift made by bright specification and accompanying drawing content is applied directly or indirectly in other relevant skills
Art field, is included within the scope of the present invention.
Claims (10)
1. a kind of diagnostic method of the temperature sensor of outdoor heat exchanger, which is characterized in that the temperature of the outdoor heat exchanger passes
The diagnostic method of sensor the following steps are included:
The operational mode of air-conditioning system is obtained, and detects the coil pipe temperature of outdoor heat exchanger by the temperature sensor of outdoor heat exchanger
Angle value, or outdoor environment temperature value is also detected by outdoor environment temperature sensor；
According to the operational mode of the air-conditioning system instantly, and the coil temperature value got, judge the coil pipe temperature
Whether angle value meets preset condition, or the coil temperature value and outdoor environment temperature value that get, judges the coil pipe temperature
Whether angle value and outdoor environment temperature value meet preset condition；
Meet preset condition in the coil temperature value, or meets default item in the coil temperature value and outdoor environment temperature value
When part, then determine that the temperature sensor of the outdoor heat exchanger breaks down；
Wherein, the operational mode according to the air-conditioning system instantly, and the coil temperature value got, judge institute
State that the step of whether coil temperature value meets preset condition includes:
Judge under air-conditioning system operational mode instantly, whether the variation tendency of the coil temperature meets the operation
The corresponding default variation tendency of mode；
The operational mode according to the air-conditioning system instantly, and the coil temperature value and outdoor environment temperature that get
Angle value judges that the step of whether the coil temperature value and outdoor environment temperature value meet preset condition includes:
Judge under air-conditioning system operational mode instantly, between the coil temperature value and the outdoor environment temperature value
Size relation whether meet the corresponding default size relation of the operational mode.
2. the diagnostic method of the temperature sensor of outdoor heat exchanger as described in claim 1, which is characterized in that described according to institute
The operational mode of air-conditioning system instantly is stated, and the coil temperature value got, judges whether the coil temperature value is full
Sufficient preset condition, or the coil temperature value and outdoor environment temperature value that get, judge the coil temperature value and outdoor
The step of whether ambient temperature value meets preset condition include:
When the operational mode of the air-conditioning system instantly is refrigeration mode, if getting the coil temperature value, institute is judged
Whether on a declining curve in the given time state coil temperature value；
Wherein, when judging that the coil temperature value is on a declining curve in the given time, then determine that the coil temperature value is full
Sufficient preset condition.
3. the diagnostic method of the temperature sensor of outdoor heat exchanger as described in claim 1, which is characterized in that described according to institute
The operational mode of air-conditioning system instantly is stated, and the coil temperature value got, judges whether the coil temperature value is full
Sufficient preset condition, or the coil temperature value and outdoor environment temperature value that get, judge the coil temperature value and outdoor
The step of whether ambient temperature value meets preset condition include:
When the operational mode of the air-conditioning system instantly is refrigeration mode, if getting the coil temperature value and outdoor ring
Border temperature value, the then size relation between the coil temperature value and outdoor environment temperature value；
Wherein, when judging that the coil temperature value is less than the outdoor environment temperature value, then determine that the coil temperature meets
Preset condition.
4. the diagnostic method of the temperature sensor of outdoor heat exchanger as described in claim 1, which is characterized in that described according to institute
The operational mode of air-conditioning system instantly is stated, and the coil temperature value got, judges whether the coil temperature value is full
Sufficient preset condition, or the coil temperature value and outdoor environment temperature value that get, judge the coil temperature value and outdoor
The step of whether ambient temperature value meets preset condition include:
When the operational mode of the air-conditioning system instantly is heating mode, if getting the coil temperature value, institute is judged
Whether in rising trend in the given time state coil temperature value；
Wherein, when judging that the coil temperature value is in rising trend in the given time, then determine that the coil temperature value is full
Sufficient preset condition.
5. the diagnostic method of the temperature sensor of outdoor heat exchanger as described in claim 1, which is characterized in that described according to institute
The operational mode of air-conditioning system instantly is stated, and the coil temperature value got, judges whether the coil temperature value is full
Sufficient preset condition, or the coil temperature value and outdoor environment temperature value that get, judge the coil temperature value and outdoor
The step of whether ambient temperature value meets preset condition include:
When the operational mode of the air-conditioning system instantly is heating mode, if getting the coil temperature value and outdoor ring
Border temperature value, the then size relation between the coil temperature value and outdoor environment temperature value；
Wherein, when judging that the coil temperature value is greater than the outdoor environment temperature value, then determine that the coil temperature meets
Preset condition.
6. a kind of air-conditioning system, which is characterized in that the air-conditioning system includes:
Detection module, for obtaining the operational mode of air-conditioning system, and outside the temperature sensor sensing chamber for passing through outdoor heat exchanger
The coil temperature value of heat exchanger, or outdoor environment temperature value is also detected by outdoor environment temperature sensor；
Judgment module, for the operational mode according to the air-conditioning system instantly, and the coil temperature value got, sentence
Whether the coil temperature value of breaking meets preset condition, or the coil temperature value and outdoor environment temperature value that get, sentences
Whether the coil temperature value of breaking and outdoor environment temperature value meet preset condition；
Determination module, for meeting preset condition in the coil temperature value, or in the coil temperature value and outdoor environment temperature
When angle value meets preset condition, then determine that the temperature sensor of the outdoor heat exchanger breaks down；
Wherein, the operational mode according to the air-conditioning system instantly, and the coil temperature value got, judge institute
State that the step of whether coil temperature value meets preset condition includes:
Judge under air-conditioning system operational mode instantly, whether the variation tendency of the coil temperature meets the operation
The corresponding default variation tendency of mode；
The operational mode according to the air-conditioning system instantly, and the coil temperature value and outdoor environment temperature that get
Angle value judges that the step of whether the coil temperature value and outdoor environment temperature value meet preset condition includes:
Judge under air-conditioning system operational mode instantly, between the coil temperature value and the outdoor environment temperature value
Size relation whether meet the corresponding default size relation of the operational mode.
7. air-conditioning system as claimed in claim 6, which is characterized in that the judgment module is used for:
When the operational mode of the air-conditioning system instantly is refrigeration mode, if getting the coil temperature value, institute is judged
Whether on a declining curve in the given time state coil temperature value；
Wherein, when the judgment module judges that the coil temperature value is on a declining curve in the given time, then the judgement
Module determines that the coil temperature value meets preset condition.
8. air-conditioning system as claimed in claim 6, which is characterized in that the judgment module is used for: working as in the air-conditioning system
Under operational mode when being refrigeration mode, it is relatively described if getting the coil temperature value and outdoor environment temperature value
Size relation between coil temperature value and outdoor environment temperature value；
Wherein, when the judgment module judges that the coil temperature value is less than the outdoor environment temperature value, then the judgement
Module determines that the coil temperature meets preset condition.
9. air-conditioning system as claimed in claim 6, which is characterized in that the judgment module is used for:
When the operational mode of the air-conditioning system instantly is heating mode, if getting the coil temperature value, institute is judged
Whether in rising trend in the given time state coil temperature value；
Wherein, when the judgment module judges that the coil temperature value is in rising trend in the given time, then the judgement
Module determines that the coil temperature value meets preset condition.
10. air-conditioning system as claimed in claim 6, which is characterized in that the judgment module is used for:
When the operational mode of the air-conditioning system instantly is heating mode, if getting the coil temperature value and outdoor ring
Border temperature value, the then size relation between the coil temperature value and outdoor environment temperature value；
Wherein, when the judgment module judges that the coil temperature value is greater than the outdoor environment temperature value, then the judgement
Module determines that the coil temperature meets preset condition.
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| CN201710157926.5A CN106872076B (en) | 2017-03-16 | 2017-03-16 | The diagnostic method of the temperature sensor of air-conditioning system and its outdoor heat exchanger |
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| CN107702293A (en) * | 2017-09-20 | 2018-02-16 | 青岛海尔空调电子有限公司 | Air conditioner defrosting control method |
| CN109539475A (en) * | 2018-10-26 | 2019-03-29 | 珠海格力电器股份有限公司 | Method and system for judging open circuit fault of air conditioner exhaust temperature sensor |
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