CN106872076A - 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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- CN106872076A CN106872076A CN201710157926.5A CN201710157926A CN106872076A CN 106872076 A CN106872076 A CN 106872076A CN 201710157926 A CN201710157926 A CN 201710157926A CN 106872076 A CN106872076 A CN 106872076A
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- Prior art keywords
- temperature value
- coil temperature
- coil
- conditioned
- conditioning system
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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
Abstract
The invention discloses a kind of diagnostic method of the temperature sensor of outdoor heat exchanger, including：The operational mode of air-conditioning system is obtained, and passes through the coil temperature value of the temperature sensor detection outdoor heat exchanger of outdoor heat exchanger, or also pass through outdoor environment temperature sensor and detect outdoor environment temperature value；According to air-conditioning system operational mode instantly, and the coil temperature value for getting, judge whether coil temperature value meets pre-conditioned, or the coil temperature value and outdoor environment temperature value for getting, judge whether coil temperature value and outdoor environment temperature value meet pre-conditioned；Meet pre-conditioned in coil temperature value, or when coil temperature value and outdoor environment temperature value meet pre-conditioned, then judge that the temperature sensor of outdoor heat exchanger breaks down.The invention also discloses a kind of air-conditioning system.The present invention can in time be diagnosed to be the temperature sensor for breaking down, to prevent temperature detection from being forbidden, so as to ensure the reliability of air-conditioning system.
Description
Technical field
The present invention relates to refrigeration technology field, more particularly to a kind of air-conditioning system and its outdoor heat exchanger temperature sensor
Diagnostic method.
Background technology
The outdoor unit of multi-online air-conditioning system is generally equiped with temperature sensor in the coil pipe position of heat exchanger, and the temperature is passed
Sensor is mainly used in controlling in cooling mode the blower fan of outdoor unit, and control defrosting in a heating mode, if on heat exchanger
Temperature sensor fails, then cause temperature detection forbidden, so as to influence the reliability of air-conditioning system.
The content of the invention
Diagnosis it is a primary object of the present invention to provide the temperature sensor of a kind of air-conditioning system and its outdoor heat exchanger
, there is inaccurate phenomenon, so as to ensure to prevent temperature detection in method, it is intended to be diagnosed to be the temperature sensor for breaking down in time
The reliability of air-conditioning system.
To achieve the above object, a kind of diagnostic method of the temperature sensor of outdoor heat exchanger of present invention offer, including with
Lower step：
The operational mode of acquisition air-conditioning system, and pass through the disk that the temperature sensor of outdoor heat exchanger detects outdoor heat exchanger
Pipe temperature value, or outdoor environment temperature value is also detected by outdoor environment temperature sensor；
According to air-conditioning system operational mode instantly, and the coil temperature value for getting, judge the disk
It is pre-conditioned whether pipe temperature value meets, or the coil temperature value and outdoor environment temperature value for getting, and judges the disk
Whether pipe temperature value and outdoor environment temperature value meet pre-conditioned；
Meet pre-conditioned in the coil temperature value, or meet pre- in the coil temperature value and outdoor environment temperature value
If during condition, then judging 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 for getting,
Judge whether the coil temperature value meets pre-conditioned, or the coil temperature value and outdoor environment temperature value for getting,
Judge whether the coil temperature value and outdoor environment temperature value meet pre-conditioned step and include：
When air-conditioning system operational mode 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 the coil temperature is judged
Value meets pre-conditioned.
Preferably, the operational mode according to the air-conditioning system instantly, and the coil temperature value for getting,
Judge whether the coil temperature value meets pre-conditioned, or the coil temperature value and outdoor environment temperature value for getting,
Judge whether the coil temperature value and outdoor environment temperature value meet pre-conditioned step and include：
When air-conditioning system operational mode instantly is refrigeration mode, if getting the coil temperature value and room
External environment temperature value, the then magnitude relationship 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 the coil temperature is judged
Meet pre-conditioned.
Preferably, the operational mode according to the air-conditioning system instantly, and the coil temperature value for getting,
Judge whether the coil temperature value meets pre-conditioned, or the coil temperature value and outdoor environment temperature value for getting,
Judge whether the coil temperature value and outdoor environment temperature value meet pre-conditioned step and include：
When air-conditioning system operational mode 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 the coil temperature is judged
Value meets pre-conditioned.
Preferably, the operational mode according to the air-conditioning system instantly, and the coil temperature value for getting,
Judge whether the coil temperature value meets pre-conditioned, or the coil temperature value and outdoor environment temperature value for getting,
Judge whether the coil temperature value and outdoor environment temperature value meet pre-conditioned step and include：
When air-conditioning system operational mode instantly is heating mode, if getting the coil temperature value and room
External environment temperature value, the then magnitude relationship between the coil temperature value and outdoor environment temperature value；
Wherein, when judging that the coil temperature value is more than the outdoor environment temperature value, then the coil temperature is judged
Meet pre-conditioned.
To achieve the above object, the present invention also provides a kind of air-conditioning system, and the air-conditioning system includes：
Detection module, the operational mode for obtaining air-conditioning system, and the temperature sensor detection for passing through outdoor heat exchanger
The coil temperature value of outdoor heat exchanger, or outdoor environment temperature value is also detected by outdoor environment temperature sensor；
Judge module, for the operational mode according to the air-conditioning system instantly, and the coil temperature for getting
Value, judges whether the coil temperature value meets pre-conditioned, or the coil temperature value that gets and outdoor environment temperature
Value, judges whether the coil temperature value and outdoor environment temperature value meet pre-conditioned；
Determination module, for meeting pre-conditioned in the coil temperature value, or in the coil temperature value and outdoor ring
When border temperature value meets pre-conditioned, then judge that the temperature sensor of the outdoor heat exchanger breaks down.
Preferably, the judge module is used for：
When air-conditioning system operational mode 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, it is when the judge module judges that the coil temperature value is on a declining curve in the given time, then described
Determination module judges that the coil temperature value meets pre-conditioned.
Preferably, the judge module is used for：When air-conditioning system operational mode 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 magnitude relationship；
Wherein, it is when the judge module judges that the coil temperature value is less than the outdoor environment temperature value, then described
Determination module judges that the coil temperature meets pre-conditioned.
Preferably, the judge module is used for：
When air-conditioning system operational mode 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, it is when the judge module judges that the coil temperature value is in rising trend in the given time, then described
Determination module judges that the coil temperature value meets pre-conditioned.
Preferably, the judge module is used for：
When air-conditioning system operational mode instantly is heating mode, if getting the coil temperature value and room
External environment temperature value, the then magnitude relationship between the coil temperature value and outdoor environment temperature value；
Wherein, it is when the judge module judges that the coil temperature value is more than the outdoor environment temperature value, then described
Determination module judges that the coil temperature meets pre-conditioned.
Air-conditioning system and its diagnostic method of the temperature sensor of outdoor heat exchanger that the present invention is provided, by obtaining air-conditioning
The operational mode of system, and pass through the coil temperature value of the temperature sensor detection outdoor heat exchanger of outdoor heat exchanger, or it is also logical
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 for getting, judge whether the coil temperature value meets pre-conditioned, or the disk for getting
Pipe temperature value and outdoor environment temperature value, judge whether the coil temperature value and outdoor environment temperature value meet pre-conditioned,
Meet pre-conditioned in the coil temperature value, or meet pre-conditioned in the coil temperature value and outdoor environment temperature value
When, then judge that the temperature sensor of the outdoor heat exchanger breaks down.So, the temperature for breaking down can be in time diagnosed to be
, there is inaccurate phenomenon, so as to ensure the reliability of air-conditioning system to prevent temperature detection in sensor.
Brief description of the drawings
Fig. 1 is the schematic flow sheet of the diagnostic method first embodiment of the temperature sensor of outdoor heat exchanger of the present invention；
Fig. 2 is the schematic flow sheet of the diagnostic method second embodiment of the temperature sensor of outdoor heat exchanger of the present invention；
Fig. 3 is the schematic flow sheet of the diagnostic method 3rd embodiment of the temperature sensor of outdoor heat exchanger of the present invention；
Fig. 4 is the schematic flow sheet of the diagnostic method fourth embodiment of the temperature sensor of outdoor heat exchanger of the present invention；
Fig. 5 is the schematic flow sheet of the embodiment of diagnostic method the 5th of the temperature sensor of outdoor heat exchanger of the present invention；
Fig. 6 is the high-level schematic functional block diagram of the embodiment of air-conditioning system of the present invention.
The realization of the object of the invention, functional characteristics and advantage will be described further referring to the drawings in conjunction with the embodiments.
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.
Reference picture 1, in one embodiment, the diagnostic method of the temperature sensor of the outdoor heat exchanger includes following step
Suddenly：
Step S1, the operational mode for obtaining air-conditioning system, and detect that outdoor is changed by the temperature sensor of 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 is hereafter mainly illustrated with as a example by heating mode in a chiller mode.
Wherein, the temperature sensor of outdoor heat exchanger can be arranged at the import or export position of outdoor heat exchanger, may be used also
To be arranged between inlet and outlet position；And outdoor environment temperature sensor can be arranged in the inner body wall of outdoor unit and lean on
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, 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 is can be combined with, and according to two temperature
Magnitude relationship between angle value is judged.
If it should be understood that only getting the coil temperature value of outdoor heat exchanger, being implemented using the first scheme；If
When getting the coil temperature value of outdoor heat exchanger, outdoor environment temperature value is also got, then implemented using second scheme.Tool
Body ground, after the coil temperature value for getting outdoor heat exchanger, if not getting outdoor heat exchange within the scheduled time such as 1min
The coil temperature value of device, then directly use the first scheme；If getting the coil temperature of outdoor heat exchanger in the given time
Value, then implemented using second scheme.Certainly, in other embodiments, the priority of both schemes can also be set, two
In the case that the scheme of kind can be implemented, can set and which kind of scheme preferentially taken；In order to ensure accuracy, can also it is comprehensive this
Two kinds of embodiments.
Step S2, the operational mode according to the air-conditioning system instantly, and the coil temperature value for getting, judge
Whether the coil temperature value meets pre-conditioned, or the coil temperature value and outdoor environment temperature value for getting, and judges
Whether the coil temperature value and outdoor environment temperature value meet pre-conditioned；
In the present embodiment, in first scheme, whether the pre-conditioned trend that could be arranged to coil temperature meets correspondence
The down or up trend presented under operational mode；It is pre-conditioned to could be arranged to judge in corresponding fortune in alternative plan
Under row mode, whether the magnitude relationship of the coil temperature value and outdoor environment temperature value meets default magnitude relationship.
Step S3, meet pre-conditioned in the coil temperature value, or in the coil temperature value and outdoor environment temperature
When value meets pre-conditioned, then judge 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 pre-conditioned, 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 pre-conditioned, then judge that the temperature sensor of the outdoor heat exchanger breaks down.
The implementation method and priority of specific two schemes as described above, in addition, when implementing both schemes at the same time,
If during two schemes combination, the result of judgement is different, can pre-set and is defined by any scheme, 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
Survey.
The diagnostic method of the temperature sensor of the outdoor heat exchanger that the present invention is provided, by the operation mould for obtaining air-conditioning system
Formula, and the coil temperature value of outdoor heat exchanger is detected by the temperature sensor of outdoor heat exchanger, or also by outdoor environment temperature
Degree sensor detection outdoor environment temperature value, the then operational mode according to the air-conditioning system instantly, and the institute for getting
Coil temperature value is stated, judges whether the coil temperature value meets pre-conditioned, or the coil temperature value that gets and room
External environment temperature value, judges whether the coil temperature value and outdoor environment temperature value meet pre-conditioned, in the coil pipe temperature
Angle value meets pre-conditioned, or when the coil temperature value and outdoor environment temperature value meet pre-conditioned, then judges described
The temperature sensor of outdoor heat exchanger breaks down.So, the temperature sensor for breaking down can be in time diagnosed to be, to prevent
There is inaccurate phenomenon in temperature detection, so as to ensure the reliability of air-conditioning system.
In the first embodiment, as shown in Fig. 2 on the basis of shown in above-mentioned Fig. 1, the step S2 includes：
When step S21, the operational mode in the air-conditioning system instantly are 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 air-conditioning system operational mode instantly is refrigeration mode, under normal circumstances, if outdoor
The temperature sensor of heat exchanger is normal, then the coil temperature that now temperature sensor of outdoor heat exchanger is detected, in the scheduled time
As 5min planted agent is in rising trend.If judging, the coil temperature value is on a declining curve in the range of this time, shows outdoor
The temperature sensor of heat exchanger occurs abnormal.
Accordingly, the step S3 is then further included：
Step S31, when judging that the coil temperature value is on a declining curve in the given time, then judge the coil pipe temperature
Angle value meets pre-conditioned.
In the present embodiment, judging that the coil temperature value is on a declining curve in the range of this time, then judging the disk
Pipe temperature value meets pre-conditioned, now shows that exception occurs in the temperature sensor of outdoor heat exchanger.
In a second embodiment, as shown in figure 3, on the basis of shown in above-mentioned Fig. 1, the step S2 includes：
When step S22, the operational mode in the air-conditioning system instantly are refrigeration mode, if getting the coil temperature
It is worth and outdoor environment temperature value, then the magnitude relationship between the coil temperature value and outdoor environment temperature value；
In the present embodiment, when air-conditioning system operational mode instantly is refrigeration mode, under normal circumstances, get
Magnitude relationship between the coil temperature value and outdoor environment temperature value, should be the coil temperature value more than the outdoor
Ambient temperature value.If judging, the judgement coil temperature value, less than the outdoor environment temperature value, shows outdoor heat exchange
The temperature sensor of device occurs abnormal.
Accordingly, the step S3 is then further included：
Step S32, judge the coil temperature value be less than the outdoor environment temperature value when, then judge the coil pipe temperature
Degree meets pre-conditioned.
In the present embodiment, when judging that the coil temperature value is less than the outdoor environment temperature value, then the disk is judged
Pipe temperature meets pre-conditioned, now shows that exception occurs in the temperature sensor of outdoor heat exchanger.
In the third embodiment, as shown in figure 4, on the basis of shown in above-mentioned Fig. 1, the step S2 includes：
When step S23, the operational mode in the air-conditioning system instantly are 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 air-conditioning system operational mode instantly is heating mode, under normal circumstances, if outdoor
The temperature sensor of heat exchanger is normal, then the coil temperature that now temperature sensor of outdoor heat exchanger is detected, in the scheduled time
As 5min planted agent is on a declining curve.If judging, the coil temperature value is in rising trend in the range of this time, shows outdoor
The temperature sensor of heat exchanger occurs abnormal.
Accordingly, the step S3 is then further included：
Step S33, when judging that the coil temperature value is in rising trend in the given time, then judge the coil pipe temperature
Angle value meets pre-conditioned.
In the present embodiment, judging that the coil temperature value is in rising trend in the range of this time, then judging the disk
Pipe temperature value meets pre-conditioned, now shows that exception occurs in the temperature sensor of outdoor heat exchanger.
In the fourth embodiment, as shown in figure 5, on the basis of shown in above-mentioned Fig. 1, the step S2 includes：
When step S24, the operational mode in the air-conditioning system instantly are heating mode, if getting the coil temperature
It is worth and outdoor environment temperature value, then the magnitude relationship between the coil temperature value and outdoor environment temperature value；
In the present embodiment, when air-conditioning system operational mode instantly is heating mode, under normal circumstances, get
Magnitude relationship 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, more than the outdoor environment temperature value, shows outdoor heat exchange
The temperature sensor of device occurs abnormal.
Accordingly, the step S3 is then further included：
Step S34, judge the coil temperature value be more than the outdoor environment temperature value when, then judge the coil pipe temperature
Degree meets pre-conditioned.
In the present embodiment, when judging that the coil temperature value is more than the outdoor environment temperature value, then the disk is judged
Pipe temperature meets pre-conditioned, now shows that exception occurs in the temperature sensor of outdoor heat exchanger.
To achieve the above object, reference picture 6, the present invention also provides a kind of air-conditioning system 100, in one embodiment, described
Air-conditioning system 100 includes：
Detection module 10, the operational mode for obtaining air-conditioning system, and the temperature sensor inspection for passing through 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 is hereafter mainly illustrated with as a example by heating mode in a chiller mode.
Wherein, the temperature sensor of outdoor heat exchanger can be arranged at the import or export position of outdoor heat exchanger, may be used also
To be arranged between inlet and outlet position；And outdoor environment temperature sensor can be arranged in the inner body wall of outdoor unit and lean on
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, 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 is can be combined with, and according to two temperature
Magnitude relationship between angle value is judged.
If it should be understood that only getting the coil temperature value of outdoor heat exchanger, being implemented using the first scheme；If
When getting the coil temperature value of outdoor heat exchanger, outdoor environment temperature value is also got, then implemented using second scheme.Tool
Body ground, after the coil temperature value for getting outdoor heat exchanger, if not getting outdoor heat exchange within the scheduled time such as 1min
The coil temperature value of device, then directly use the first scheme；If getting the coil temperature of outdoor heat exchanger in the given time
Value, then implemented using second scheme.Certainly, in other embodiments, the priority of both schemes can also be set, two
In the case that the scheme of kind can be implemented, can set and which kind of scheme preferentially taken；In order to ensure accuracy, can also it is comprehensive this
Two kinds of embodiments.
Judge module 20, for the operational mode according to the air-conditioning system instantly, and the coil pipe temperature for getting
Angle value, judges whether the coil temperature value meets pre-conditioned, or the coil temperature value and outdoor environment temperature for getting
Angle value, judges whether the coil temperature value and outdoor environment temperature value meet pre-conditioned；
In the present embodiment, in first scheme, whether the pre-conditioned trend that could be arranged to coil temperature meets correspondence
The down or up trend presented under operational mode；It is pre-conditioned to could be arranged to judge in corresponding fortune in alternative plan
Under row mode, whether the magnitude relationship of the coil temperature value and outdoor environment temperature value meets default magnitude relationship.
Determination module 30, for meeting pre-conditioned in the coil temperature value, or in the coil temperature value and outdoor
When ambient temperature value meets pre-conditioned, then judge 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 pre-conditioned, 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 pre-conditioned, then judge that the temperature sensor of the outdoor heat exchanger breaks down.
The implementation method and priority of specific two schemes as described above, in addition, when implementing both schemes at the same time,
If during two schemes combination, the result of judgement is different, can pre-set and is defined by any scheme, 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
Survey.
The air-conditioning system that the present invention is provided, by obtaining the operational mode of air-conditioning system, and the temperature for passing through outdoor heat exchanger
Degree sensor detects the coil temperature value of outdoor heat exchanger, or also detects outdoor environment temperature by outdoor environment temperature sensor
Value, the then operational mode according to the air-conditioning system instantly, and the coil temperature value for getting judges the coil pipe
It is pre-conditioned whether temperature value meets, or the coil temperature value and outdoor environment temperature value for getting, and judges the coil pipe
Whether temperature value and outdoor environment temperature value meet pre-conditioned, meet pre-conditioned in the coil temperature value, or described
When coil temperature value and outdoor environment temperature value meet pre-conditioned, then judge that the temperature sensor of the outdoor heat exchanger occurs
Failure.So, the temperature sensor for breaking down can be in time diagnosed to be, inaccurate phenomenon occurs to prevent temperature detection, from
And ensure the reliability of air-conditioning system.
In the first embodiment, on the basis of shown in above-mentioned Fig. 6, the judge module 20 is used for：
When air-conditioning system operational mode 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 air-conditioning system operational mode instantly is refrigeration mode, under normal circumstances, if outdoor
The temperature sensor of heat exchanger is normal, then the coil temperature that now temperature sensor of outdoor heat exchanger is detected, in the scheduled time
As 5min planted agent is in rising trend.If judging, the coil temperature value is on a declining curve in the range of this time, shows outdoor
The temperature sensor of heat exchanger occurs abnormal.
Accordingly, when the judge module judges that the coil temperature value is on a declining curve in the given time, then institute
State determination module and judge that the coil temperature value meets pre-conditioned.
In the present embodiment, judging that the coil temperature value is on a declining curve in the range of this time, then judging the disk
Pipe temperature value meets pre-conditioned, now shows that exception occurs in the temperature sensor of outdoor heat exchanger.
In a second embodiment, on the basis of shown in above-mentioned Fig. 6, the judge module 20 is used for：In the air-conditioning system
When system operational mode instantly is refrigeration mode, if getting the coil temperature value and outdoor environment temperature value, compare
Magnitude relationship between the coil temperature value and outdoor environment temperature value；
In the present embodiment, when air-conditioning system operational mode instantly is refrigeration mode, under normal circumstances, get
Magnitude relationship between the coil temperature value and outdoor environment temperature value, should be the coil temperature value more than the outdoor
Ambient temperature value.If judging, the judgement coil temperature value, less than the outdoor environment temperature value, shows outdoor heat exchange
The temperature sensor of device occurs abnormal.
Accordingly, when the judge module judges that the coil temperature value is less than the outdoor environment temperature value, then institute
State determination module and judge that the coil temperature meets pre-conditioned.
In the present embodiment, when judging that the coil temperature value is less than the outdoor environment temperature value, then the disk is judged
Pipe temperature meets pre-conditioned, now shows that exception occurs in the temperature sensor of outdoor heat exchanger.
In the third embodiment, on the basis of shown in above-mentioned Fig. 6, the judge module 20 is used for：
When air-conditioning system operational mode 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 air-conditioning system operational mode instantly is heating mode, under normal circumstances, if outdoor
The temperature sensor of heat exchanger is normal, then the coil temperature that now temperature sensor of outdoor heat exchanger is detected, in the scheduled time
As 5min planted agent is on a declining curve.If judging, the coil temperature value is in rising trend in the range of this time, shows outdoor
The temperature sensor of heat exchanger occurs abnormal.
Accordingly, when the judge module judges that the coil temperature value is in rising trend in the given time, then institute
State determination module and judge that the coil temperature value meets pre-conditioned.
In the present embodiment, judging that the coil temperature value is in rising trend in the range of this time, then judging the disk
Pipe temperature value meets pre-conditioned, now shows that exception occurs in the temperature sensor of outdoor heat exchanger.
In the fourth embodiment, on the basis of shown in above-mentioned Fig. 6, the judge module 20 is used for：
When air-conditioning system operational mode instantly is heating mode, if getting the coil temperature value and room
External environment temperature value, the then magnitude relationship between the coil temperature value and outdoor environment temperature value；
In the present embodiment, when air-conditioning system operational mode instantly is heating mode, under normal circumstances, get
Magnitude relationship 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, more than the outdoor environment temperature value, shows outdoor heat exchange
The temperature sensor of device occurs abnormal.
Accordingly, when the judge module judges that the coil temperature value is more than the outdoor environment temperature value, then institute
State determination module and judge that the coil temperature meets pre-conditioned.
In the present embodiment, when judging that the coil temperature value is more than the outdoor environment temperature value, then the disk is judged
Pipe temperature meets pre-conditioned, now shows that exception occurs in the temperature sensor of outdoor heat exchanger.
The preferred embodiments of the present invention are these are only, the scope of the claims of the invention is not thereby limited, it is every to utilize this hair
Equivalent structure or equivalent flow conversion that bright specification and accompanying drawing content are made, or directly or indirectly it is used in other related 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, it is characterised in that the temperature of the outdoor heat exchanger is passed
The diagnostic method of sensor is comprised the following steps：
The operational mode of acquisition air-conditioning system, and pass through the coil pipe temperature that the temperature sensor of outdoor heat exchanger detects outdoor heat exchanger
Angle value, or outdoor environment temperature value is also detected by outdoor environment temperature sensor；
According to air-conditioning system operational mode instantly, and the coil temperature value for getting, judge the coil pipe temperature
It is pre-conditioned whether angle value meets, or the coil temperature value and outdoor environment temperature value for getting, and judges the coil pipe temperature
Whether angle value and outdoor environment temperature value meet pre-conditioned；
Meet pre-conditioned in the coil temperature value, or meet default bar in the coil temperature value and outdoor environment temperature value
During part, then judge that the temperature sensor of the outdoor heat exchanger breaks down.
2. the diagnostic method of the temperature sensor of outdoor heat exchanger as claimed in claim 1, it is characterised in that described according to institute
Air-conditioning system operational mode instantly, and the coil temperature value for getting are stated, judges whether the coil temperature value is full
Foot is pre-conditioned, or the coil temperature value and outdoor environment temperature value for getting, and judges the coil temperature value and outdoor
Whether ambient temperature value meets pre-conditioned step includes：
When air-conditioning system operational mode 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 judge that the coil temperature value expires
Foot is pre-conditioned.
3. the diagnostic method of the temperature sensor of outdoor heat exchanger as claimed in claim 1 or 2, it is characterised in that described
According to air-conditioning system operational mode instantly, and the coil temperature value for getting, judge that the coil temperature value is
It is not no to meet pre-conditioned, or the coil temperature value and outdoor environment temperature value for getting, judge the coil temperature value and
Whether outdoor environment temperature value meets pre-conditioned step includes：
When air-conditioning system operational mode instantly is refrigeration mode, if getting the coil temperature value and outdoor ring
Border temperature value, the then magnitude relationship 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 judge that the coil temperature meets
It is pre-conditioned.
4. the diagnostic method of the temperature sensor of outdoor heat exchanger as claimed in claim 1, it is characterised in that described according to institute
Air-conditioning system operational mode instantly, and the coil temperature value for getting are stated, judges whether the coil temperature value is full
Foot is pre-conditioned, or the coil temperature value and outdoor environment temperature value for getting, and judges the coil temperature value and outdoor
Whether ambient temperature value meets pre-conditioned step includes：
When air-conditioning system operational mode 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 judge that the coil temperature value expires
Foot is pre-conditioned.
5. the diagnostic method of the temperature sensor of the outdoor heat exchanger as described in claim 1 or 4, it is characterised in that described
According to air-conditioning system operational mode instantly, and the coil temperature value for getting, judge that the coil temperature value is
It is not no to meet pre-conditioned, or the coil temperature value and outdoor environment temperature value for getting, judge the coil temperature value and
Whether outdoor environment temperature value meets pre-conditioned step includes：
When air-conditioning system operational mode instantly is heating mode, if getting the coil temperature value and outdoor ring
Border temperature value, the then magnitude relationship between the coil temperature value and outdoor environment temperature value；
Wherein, when judging that the coil temperature value is more than the outdoor environment temperature value, then judge that the coil temperature meets
It is pre-conditioned.
6. a kind of air-conditioning system, it is characterised in that the air-conditioning system includes：
Detection module, the operational mode for obtaining air-conditioning system, and it is outdoor by the temperature sensor detection of outdoor heat exchanger
The coil temperature value of heat exchanger, or outdoor environment temperature value is also detected by outdoor environment temperature sensor；
Judge module, for the operational mode according to the air-conditioning system instantly, and the coil temperature value for getting, sentence
Whether the coil temperature value of breaking meets pre-conditioned, or the coil temperature value and outdoor environment temperature value for getting, and sentences
Whether the coil temperature value of breaking and outdoor environment temperature value meet pre-conditioned；
Determination module, for meeting pre-conditioned in the coil temperature value, or in the coil temperature value and outdoor environment temperature
When angle value meets pre-conditioned, then judge that the temperature sensor of the outdoor heat exchanger breaks down.
7. air-conditioning system as claimed in claim 6, it is characterised in that the judge module is used for：
When air-conditioning system operational mode 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 judge module judges that the coil temperature value is on a declining curve in the given time, then the judgement
Module judges that the coil temperature value meets pre-conditioned.
8. air-conditioning system as claimed in claims 6 or 7, it is characterised in that the judge module is used for：In the air-conditioning system
Instantly when operational mode is refrigeration mode, if getting the coil temperature value and outdoor environment temperature value, institute is compared
State the magnitude relationship between coil temperature value and outdoor environment temperature value；
Wherein, when the judge module judges that the coil temperature value is less than the outdoor environment temperature value, then the judgement
Module judges that the coil temperature meets pre-conditioned.
9. air-conditioning system as claimed in claim 6, it is characterised in that the judge module is used for：
When air-conditioning system operational mode 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 judge module judges that the coil temperature value is in rising trend in the given time, then the judgement
Module judges that the coil temperature value meets pre-conditioned.
10. the air-conditioning system as described in claim 6 or 9, it is characterised in that the judge module is used for：
When air-conditioning system operational mode instantly is heating mode, if getting the coil temperature value and outdoor ring
Border temperature value, the then magnitude relationship between the coil temperature value and outdoor environment temperature value；
Wherein, when the judge module judges that the coil temperature value is more than the outdoor environment temperature value, then the judgement
Module judges that the coil temperature meets pre-conditioned.
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| CN106872076B (en) | 2019-11-22 |
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