CN107631413A - Exhaust gas temperature sensor releases fault detection method and device and air conditioner - Google Patents
Exhaust gas temperature sensor releases fault detection method and device and air conditioner Download PDFInfo
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- CN107631413A CN107631413A CN201710849626.3A CN201710849626A CN107631413A CN 107631413 A CN107631413 A CN 107631413A CN 201710849626 A CN201710849626 A CN 201710849626A CN 107631413 A CN107631413 A CN 107631413A
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Abstract
The invention provides a kind of exhaust gas temperature sensor to release fault detection method and device and air conditioner.Wherein, exhaust gas temperature sensor releases fault detection method and included：When air conditioner starts shooting refrigeration or heating operation, detect outdoor environment temperature and the running frequency of compressor is set according to outdoor environment temperature, while detect the initial exhaust gas temperature of compressor；When the running frequency of compressor is more than the first predeterminated frequency, the delivery temperature of the compressor detected after the first preset duration and the difference of the initial exhaust gas temperature of compressor are run according to start, judge whether exhaust gas temperature sensor releases failure.Above-mentioned technical proposal, judge that exhaust gas temperature sensor whether there is according to the situation of change of delivery temperature and release failure, in order to the running parameter of air conditioner is adjusted or reminded user check whether exhaust gas temperature sensor gets loose failure in time in time when there is releasing failure, prevent complete machine from irreversible damage or hydraulic performance decline occur.
Description
Technical field
The present invention relates to air-conditioning technical field, more specifically, is related to a kind of exhaust gas temperature sensor and releases fault detect
Method, a kind of exhaust gas temperature sensor release failure detector, a kind of air conditioner, a kind of computer equipment and a kind of computer
Readable storage medium storing program for executing.
Background technology
At present, transducer air conditioning, have much by detecting the delivery temperature of compressor come regulating frequency, if the machine makes
With electronic expansion throttling arrangement, then the aperture of electric expansion valve can be also adjusted according to the delivery temperature detected, so as to
Air conditioner is set to be in optimal running status.Exhaust gas temperature sensor can be stuck in compressor air-discharging by general producer by jump ring
Prevent from coming off on pipe, but can not exclude occur the unexpected feelings for causing exhaust gas temperature sensor to release in transport, installation process
Condition.If released, system detectio to delivery temperature will remain at low levels for a long time state (close to environment temperature), electricity
Sub- expansion valve will receive the instruction of mistake, and aperture reduces always, consequently, it is possible to which the actual exhaust air temperature of compressor will be remote
Much larger than normal value, if without corresponding safeguard measure, excessive discharge temperature occurs, compressor internal temperature is too high, system
Cold effect declines the problems such as even compressor body damage.
The content of the invention
It is contemplated that at least solves one of technical problem present in prior art.
Therefore, the purpose of first aspect present invention is, there is provided a kind of exhaust gas temperature sensor releases fault detection method.
The purpose of second aspect of the present invention is, there is provided a kind of exhaust gas temperature sensor releases failure detector.
The purpose of third aspect present invention is, there is provided a kind of air conditioner.
The purpose of fourth aspect present invention is, there is provided a kind of computer equipment.
The purpose of fifth aspect present invention is, there is provided a kind of computer-readable recording medium.
To achieve the above object, the technical scheme of first aspect present invention provides a kind of exhaust gas temperature sensor and releases event
Hinder detection method, suitable for air conditioner, the air conditioner includes compressor and electric expansion valve, the exhaust ports of the compressor
Provided with exhaust gas temperature sensor, the fault detection method that releases includes：When the air conditioner starts shooting refrigeration or heating operation,
Detect outdoor environment temperature and the running frequency of the compressor is set according to the outdoor environment temperature, while detect the pressure
The initial exhaust gas temperature of contracting machine；Judge whether the running frequency of the compressor is more than the first predeterminated frequency；If it is not, then open next time
No longer carry out releasing fault detect before machine；If so, the row of the compressor is then detected after start runs the first preset duration
Temperature degree；The delivery temperature for running the compressor detected after the first preset duration according to starting shooting is initial with the compressor
The difference of delivery temperature, judges whether the exhaust gas temperature sensor releases failure.
The exhaust gas temperature sensor that above-mentioned technical proposal of the present invention provides releases fault detection method, air conditioner start refrigeration
(or heating), according to conventional control rule, system detectio selectes compressor to outdoor environment temperature, and according to outdoor environment temperature
Most suitable running frequency, judges whether the running frequency is more than predeterminated frequency (such as 30HZ) before start next time no more than if
What no longer progress was follow-up releases fault detect, because compressor frequency is relatively low, is released even if there is exhaust gas temperature sensor
Failure will not also make a big impact to overall performance；If the running frequency of compressor is more than predeterminated frequency, need to carry out down
One step judges；After start the first preset duration of operation, the first preset duration more than 10 minutes to be advisable, detection delivery temperature sensing
The temperature that device senses, the difference for the delivery temperature answered according to exhaust gas temperature sensor in the first preset duration flu spacer judge row
Whether gas temperature sensor releases failure, if the difference of delivery temperature is larger, i.e. delivery temperature changes greatly, then explanation exhaust
Temperature sensor does not release, and no longer carries out subsequently releasing fault detect before start next time, if the difference of delivery temperature is smaller,
Then exhaust gas temperature sensor, which there may be, releases failure, in order to when there is releasing failure in time to the running parameter of air conditioner
It is adjusted or remind user to check whether exhaust gas temperature sensor gets loose failure in time, so as to prevent complete machine from occurring not
Reversible damage or hydraulic performance decline.
In addition, the exhaust gas temperature sensor that above-mentioned technical proposal of the present invention provides releases fault detection method and can also had
Following additional technical feature：
In the above-mentioned technical solutions, the exhaust that the compressor detected after the first preset duration is run according to start
Temperature and the difference of the initial exhaust gas temperature of the compressor, judge whether the exhaust gas temperature sensor releases failure, specifically
Including：Judge the delivery temperature of the compressor and the initial row of the compressor detected after start the first preset duration of operation
Whether the absolute value of the difference of temperature degree is less than the first fiducial temperature；If it is not, then no longer carry out releasing failure before start next time
Detection；If so, then detecting the aperture of the electric expansion valve, and the compressor is detected after start runs the second preset duration
Delivery temperature and the electric expansion valve aperture；The compressor detected after judgement start the second preset duration of operation
Whether the absolute value of the difference of the delivery temperature of the compressor detected after delivery temperature and start the first preset duration of operation
Less than the second fiducial temperature；If it is not, then no longer carry out releasing fault detect before start next time；If so, then judge start operation
The electric expansion valve is opened after the aperture of the electric expansion valve runs the first preset duration with start after second preset duration
It is poor whether the absolute value of the difference of degree is more than default aperture；If it is not, then no longer carry out releasing fault detect before start next time；If
It is then to judge that the exhaust gas temperature sensor releases failure.
In the technical scheme, when the difference for the delivery temperature that exhaust gas temperature sensor is answered in the first preset duration flu spacer
Absolute value when being less than the first fiducial temperature, it is necessary to detect the aperture of now electric expansion valve, and subsequently judged；Start fortune
After the preset duration of row second, the second preset duration is advisable with being less than 60 minutes more than 30 minutes, detects exhaust gas temperature sensor sense
The delivery temperature that should be arrived, while the delivery temperature for the compressor for judging to detect after start the second preset duration of operation is run with start
Whether the absolute value of the difference of the delivery temperature of the compressor detected after the first preset duration is less than the second fiducial temperature, if it is not,
Then illustrate that exhaust gas temperature sensor does not release, no longer carry out subsequently releasing fault detect before start next time；If so, then need
The aperture of now electric expansion valve is detected, and is subsequently judged, judgement is opened according to the situation of change of the aperture of electric expansion valve
Whether exhaust gas temperature sensor releases, and judges the aperture of electric expansion valve and start operation the after start the second preset duration of operation
Whether the absolute value of the difference of the aperture of electric expansion valve is poor more than default aperture after one preset duration, if so, then judging exhaust
Temperature sensor releases failure, because the aperture change of electric expansion valve is greatly, delivery temperature can be caused to vary widely, and real
The delivery temperature of border detection varies less, therefore may determine that exhaust gas temperature sensor occurs releasing failure；If it is not, then say
When the aperture of bright electric expansion valve changes, delivery temperature is also correspondingly changed, and can be now vented with primitive decision
Temperature sensor does not occur releasing failure, then no longer carries out releasing fault detect before start next time.
In any of the above-described technical scheme, after exhaust gas temperature sensor is stated described in judgement and releases failure, in addition to：Will
The aperture of the electric expansion valve is locked to default aperture, while by the Frequency Locking of the compressor to the second predeterminated frequency.
When judging that failure occurs releasing in exhaust gas temperature sensor, the aperture of electric expansion valve is locked in time default
Compressor frequency is locked to the second predeterminated frequency by aperture, the default aperture to be advisable more than 300 steps, and this is second default
Frequency less than 30HZ to be advisable.
In any of the above-described technical scheme, after exhaust gas temperature sensor is stated described in judgement and releases failure, in addition to：It is defeated
Go out to release failure code；And/or send alarm.
When judging that failure occurs releasing in exhaust gas temperature sensor, output releases failure code or is simultaneously emitted by alarming
Prompting, in order to which maintenance personal checks or known failure cause in time, so as to be pacified again to exhaust gas temperature sensor in time
Dress is fixed.
The technical scheme of second aspect of the present invention provides a kind of exhaust gas temperature sensor and releases failure detector, is applicable
In air conditioner, the air conditioner includes compressor and electric expansion valve, and the exhaust ports of the compressor pass provided with delivery temperature
Sensor, the failure detector that releases include：First detection module, in air conditioner start refrigeration or heating operation
When, detect outdoor environment temperature and the running frequency of the compressor is set according to the outdoor environment temperature, while detect institute
State the initial exhaust gas temperature of compressor；First judge module, for judging whether the running frequency of the compressor is more than first
Predeterminated frequency；First control module, for when the running frequency of the compressor is not more than first predeterminated frequency, stopping
Release fault detect；First control module is additionally operable to be more than first predeterminated frequency in the running frequency of the compressor
When, start the second detection module；Second detection module is used to detect the compression after start runs the first preset duration
The delivery temperature of machine；Second control module, for running the row of the compressor detected after the first preset duration according to start
The difference of temperature degree and the initial exhaust gas temperature of the compressor, judges whether the exhaust gas temperature sensor releases failure.
In the above-mentioned technical solutions, described exhaust gas temperature sensor releases failure detector, in addition to：Second judges
Module, for the delivery temperature of the compressor that is detected after the first preset duration of operation that judges to start shooting and the compressor just
Whether the absolute value of the difference of beginning delivery temperature is less than the first fiducial temperature；Second control module is used in start operation the
The delivery temperature of the compressor detected after one preset duration is absolute with the difference of the initial exhaust gas temperature of the compressor
When value is not less than the first fiducial temperature, stopping releases fault detect；Second control module is additionally operable in start operation first
The absolute value of the delivery temperature of the compressor detected after preset duration and the difference of the initial exhaust gas temperature of the compressor
During less than the first fiducial temperature, start the 3rd detection module；3rd detection module is used for when start operation first is default
The aperture of the electric expansion valve is detected after length, is additionally operable to detect the row of the compressor after start runs the second preset duration
The aperture of temperature degree and the electric expansion valve；3rd judge module, for being detected after judging start the second preset duration of operation
The compressor delivery temperature and the difference of the delivery temperature of the compressor detected after start the first preset duration of operation
Whether the absolute value of value is less than the second fiducial temperature；3rd control module, for being detected after start runs the second preset duration
The compressor delivery temperature and the difference of the delivery temperature of the compressor detected after start the first preset duration of operation
When the absolute value of value is not less than the second fiducial temperature, stopping releases fault detect；3rd control module is additionally operable to starting shooting
Run the delivery temperature of the compressor detected after the second preset duration and the institute detected after start the first preset duration of operation
When stating the absolute value of the difference of the delivery temperature of compressor and being less than the second fiducial temperature, start the 4th judge module；Described 4th
Judge module is used to judging after start the first preset duration of operation that the aperture of the electric expansion valve and start operation second to be default
Whether the absolute value of the difference of the aperture of the electric expansion valve it is poor be more than default aperture after duration；4th control module, is used for
The aperture of the electric expansion valve and the electronics after start the first preset duration of operation after the second preset duration are run in start
When the absolute value of the difference of the aperture of expansion valve is not more than the default aperture difference, stopping releases fault detect；4th control
Molding block is additionally operable to run delivery temperature and the start operation first of the compressor detected after the second preset duration in start
When the absolute value of the difference of the delivery temperature of the compressor detected after preset duration is more than second fiducial temperature, judge
The exhaust gas temperature sensor releases failure.
In any of the above-described technical scheme, described exhaust gas temperature sensor releases failure detector, in addition to：Therefore
Hinder processing module, for after stating exhaust gas temperature sensor described in judgement and releasing failure, by the aperture of the electric expansion valve
It is locked to default aperture, while by the Frequency Locking of the compressor to the second predeterminated frequency.
In any of the above-described technical scheme, described exhaust gas temperature sensor releases failure detector, in addition to：Failure
Processing module, for after exhaust gas temperature sensor is stated described in judgement and releases failure, output to release failure code and/or sent
Alarm.
The technical scheme of third aspect present invention provides a kind of air conditioner, including the compressor, cold connected by pipeline
Condenser, electric expansion valve and evaporator, the exhaust ports of the compressor are provided with exhaust gas temperature sensor, and the air conditioner also wraps
Include the exhaust gas temperature sensor as described above described in any technical scheme and release failure detector.
The air conditioner that above-mentioned technical proposal of the present invention provides, because it includes the delivery temperature described in any of the above-described technical scheme
Sensor releases failure detector, it is thus possible to progress whether is released to exhaust gas temperature sensor and detects and locates well very much
Reason, to avoid compressor from being damaged because of excessive discharge temperature, extends the service life of compressor.
The technical scheme of fourth aspect present invention provides a kind of computer equipment, including memory, processor and storage
On the memory and the computer program that can run on the processor, computer program described in the computing device
The step of exhaust gas temperature sensors of the Shi Shixian as described above described in any technical scheme releases fault detection method.
The technical scheme of fifth aspect present invention provides a kind of computer-readable recording medium, is stored thereon with computer
Program, the exhaust gas temperature sensor pine as described above described in any technical scheme is realized when the computer program is executed by processor
The step of de- fault detection method.
The additional aspect and advantage of the present invention will become obvious in following description section, or the practice by the present invention
Recognize.
Brief description of the drawings
The above-mentioned and/or additional aspect and advantage of the present invention will become in the description from combination accompanying drawings below to embodiment
Substantially and it is readily appreciated that, wherein：
Fig. 1 is the schematic flow sheet that exhaust gas temperature sensor described in one embodiment of the invention releases fault detection method；
Fig. 2 is the flow signal that exhaust gas temperature sensor described in another embodiment of the present invention releases fault detection method
Figure；
Fig. 3 be another of the invention embodiment described in exhaust gas temperature sensor release the flow signal of fault detection method
Figure；
Fig. 4 is the structural representation that exhaust gas temperature sensor described in one embodiment of the invention releases failure detector.
Wherein, the corresponding relation in Fig. 4 between reference and component names is：
1 exhaust gas temperature sensor releases failure detector, 12 first detection modules, 14 first judge modules, and 16 first
Control module, 18 second detection modules, 20 second judge modules, 22 second control modules, 24 the 3rd detection modules, 26 the 3rd sentence
Disconnected module, 28 the 3rd control modules, 30 the 4th judge modules, 32 the 4th control modules.
Embodiment
It is below in conjunction with the accompanying drawings and specific real in order to be more clearly understood that the above objects, features and advantages of the present invention
Mode is applied the present invention is further described in detail.It should be noted that in the case where not conflicting, the implementation of the application
Feature in example and embodiment can be mutually combined.
Many details are elaborated in the following description to facilitate a thorough understanding of the present invention, still, the present invention may be used also
By using other be different from it is described here in a manner of implement, therefore, protection scope of the present invention is not by following public tool
The limitation of body embodiment.
The exhaust gas temperature sensor of 1 to Fig. 4 description according to some embodiments of the invention releases failure inspection with reference to the accompanying drawings
Survey method, exhaust gas temperature sensor release fault detection method device and air conditioner.
As shown in figure 1, a kind of exhaust gas temperature sensor provided according to some embodiments of the invention releases fault detect side
Method, suitable for air conditioner, air conditioner includes compressor and electric expansion valve, and the exhaust ports of compressor sense provided with delivery temperature
Device, release fault detection method and comprise the following steps：
S102, when air conditioner starts shooting refrigeration or heating operation, detect outdoor environment temperature and according to outdoor environment temperature
The running frequency of compressor is set, while detects the initial exhaust gas temperature of compressor；
S104, judges whether the running frequency of compressor is more than the first predeterminated frequency；
S106, if it is not, then no longer carrying out releasing fault detect before start next time；
S108, if so, then detecting the delivery temperature of compressor after start runs the first preset duration；
S110, the delivery temperature of compressor detected after the first preset duration and the initial row of compressor are run according to start
The difference of temperature degree, judges whether exhaust gas temperature sensor releases failure.
The exhaust gas temperature sensor that the above embodiment of the present invention provides releases fault detection method, air conditioner start refrigeration
(or heating), according to conventional control rule, system detectio selectes compressor to outdoor environment temperature, and according to outdoor environment temperature
Most suitable running frequency, judges whether the running frequency is more than predeterminated frequency (such as 30HZ) before start next time no more than if
What no longer progress was follow-up releases fault detect, because compressor frequency is relatively low, is released even if there is exhaust gas temperature sensor
Failure will not also make a big impact to overall performance；If the running frequency of compressor is more than predeterminated frequency, need to carry out down
One step judges；After start the first preset duration of operation, the first preset duration more than 10 minutes to be advisable, detection delivery temperature sensing
The temperature that device senses, the difference for the delivery temperature answered according to exhaust gas temperature sensor in the first preset duration flu spacer judge row
Whether gas temperature sensor releases failure, if the difference of delivery temperature is larger, i.e. delivery temperature changes greatly, then explanation exhaust
Temperature sensor does not release, and no longer carries out subsequently releasing fault detect before start next time, if the difference of delivery temperature is smaller,
Then exhaust gas temperature sensor, which there may be, releases failure, in order to when there is releasing failure in time to the running parameter of air conditioner
It is adjusted or remind user to check whether exhaust gas temperature sensor gets loose failure in time, so as to prevent complete machine from occurring not
Reversible damage or hydraulic performance decline.
In one embodiment of the invention, as shown in Fig. 2 running the compression detected after the first preset duration according to start
The difference of the delivery temperature of machine and the initial exhaust gas temperature of compressor, judges whether exhaust gas temperature sensor releases failure, specifically
Including：
S202, judge the delivery temperature of compressor and the initial row of compressor detected after start the first preset duration of operation
Whether the absolute value of the difference of temperature degree is less than the first fiducial temperature；
S204, if it is not, then no longer carrying out releasing fault detect before start next time；
S206, if so, then detecting the aperture of electric expansion valve, and compressor is detected after start runs the second preset duration
Delivery temperature and electric expansion valve aperture；
It is pre- that S208, the delivery temperature for the compressor for judging to detect after start the second preset duration of operation and start run first
If whether the absolute value of the difference of the delivery temperature of the compressor detected after duration is less than the second fiducial temperature；
S210, if it is not, then no longer carrying out releasing fault detect before start next time；
S212, if so, then judging the aperture of electric expansion valve and start operation second after start the first preset duration of operation
Whether the absolute value of the difference of the aperture of electric expansion valve it is poor be more than default aperture after preset duration；
S214, if it is not, then no longer carrying out releasing fault detect before start next time；
S216, if so, then judging that exhaust gas temperature sensor releases failure.
In this embodiment, the difference for the delivery temperature answered when exhaust gas temperature sensor in the first preset duration flu spacer
, it is necessary to detect the aperture of now electric expansion valve when absolute value is less than the first fiducial temperature, and subsequently judged；Start operation
After second preset duration, the second preset duration is advisable with being less than 60 minutes more than 30 minutes, detection exhaust gas temperature sensor sensing
The delivery temperature arrived, while judge the delivery temperature of compressor that is detected after start the second preset duration of operation and start operation the
Whether the absolute value of the difference of the delivery temperature of the compressor detected after one preset duration is less than the second fiducial temperature, if it is not, then
Illustrate that exhaust gas temperature sensor does not release, no longer carry out subsequently releasing fault detect before start next time；If so, then need to examine
The aperture of now electric expansion valve is surveyed, and is subsequently judged, judgement row is opened according to the situation of change of the aperture of electric expansion valve
Whether gas temperature sensor releases, judge start operation the second preset duration after electric expansion valve aperture with start operation first
Whether the absolute value of the difference of the aperture of electric expansion valve is poor more than default aperture after preset duration, if so, then judging exhaust temperature
Degree sensor releases failure, because the aperture change of electric expansion valve is greatly, delivery temperature can be caused to vary widely, and actual
The delivery temperature of detection varies less, therefore may determine that exhaust gas temperature sensor occurs releasing failure；If it is not, then illustrate
When the aperture of electric expansion valve changes, delivery temperature is also correspondingly changed, and now can be vented temperature with primitive decision
Degree sensor does not occur releasing failure, then no longer carries out releasing fault detect before start next time.
In one embodiment of the invention, as shown in figure 3, after judging that stating exhaust gas temperature sensor releases failure,
Also include：The aperture of electric expansion valve is locked to default aperture, while by the Frequency Locking of compressor to the second predeterminated frequency.
When judging that failure occurs releasing in exhaust gas temperature sensor, the aperture of electric expansion valve is locked in time default
Compressor frequency is locked to the second predeterminated frequency by aperture, the default aperture to be advisable more than 300 steps, and this is second default
Frequency less than 30HZ to be advisable.
In one embodiment of the invention, as shown in figure 3, after judging that stating exhaust gas temperature sensor releases failure,
Also include：Output releases failure code；And/or send alarm.
When judging that failure occurs releasing in exhaust gas temperature sensor, output releases failure code or is simultaneously emitted by alarming
Prompting, in order to which maintenance personal checks or known failure cause in time, so as to be pacified again to exhaust gas temperature sensor in time
Dress is fixed.
In one specific embodiment, as shown in figure 3, exhaust gas temperature sensor, which releases fault detection method, includes following step
Suddenly：
S302, when air conditioner starts shooting refrigeration or heating operation, outdoor environment temperature T is detected, while detect compressor
Initial exhaust gas temperature TP1；
S304, the running frequency P1 of compressor is set according to outdoor environment temperature T,
S306, judges whether the running frequency P1 of compressor is more than the first predeterminated frequency；
S308, if it is not, then no longer carrying out releasing fault detect before start next time；
S310, if so, then detecting the delivery temperature TP2 of compressor after start runs the first preset duration；
S312, judge | TP2-TP1 | whether less than the first fiducial temperature；
S314, if it is not, then no longer carrying out releasing fault detect before start next time；
S316, if so, then detecting the aperture K1 of electric expansion valve；
S318, the delivery temperature TP3 of compressor is detected after start runs the second preset duration；
S320, judge | TP3-TP2 | whether less than the second fiducial temperature；
S322, if it is not, then no longer carrying out releasing fault detect before start next time；
S324, if so, then detecting the aperture K2 of electric expansion valve；
S326, judge | K2-K1 | it is poor whether to be more than default aperture；
S328, if it is not, then no longer carrying out releasing fault detect before start next time；
S330, if so, then judging that exhaust gas temperature sensor releases failure；
S332, the aperture of electric expansion valve is locked to default aperture, by the Frequency Locking of compressor to the second default frequency
Rate, and report and release failure code.
As shown in figure 4, the embodiment of second aspect of the present invention, which provides a kind of exhaust gas temperature sensor, releases fault detect
Device 1, suitable for air conditioner, air conditioner includes compressor and electric expansion valve, and the exhaust ports of compressor are provided with delivery temperature
Sensor, releasing failure detector includes：First detection module 12, the first judge module 14, the first control module 16, second
The control module 22 of detection module 18 and second.
Specifically, first detection module 12 is used to, when air conditioner starts shooting refrigeration or heating operation, detect outdoor environment temperature
Spend and the running frequency of compressor is set according to outdoor environment temperature, while detect the initial exhaust gas temperature of compressor；First sentences
Disconnected module 14 is used to judge whether the running frequency of compressor is more than the first predeterminated frequency；First control module 16 is used to compress
When the running frequency of machine is not more than the first predeterminated frequency, stopping releases fault detect；First control module 16 is additionally operable to compressing
When the running frequency of machine is more than the first predeterminated frequency, start the second detection module 18；Second detection module 18 is used to transport in start
The delivery temperature of compressor is detected after the preset duration of row first；When second control module 22 is used to be preset according to start operation first
Whether the difference of the delivery temperature of the compressor detected after length and the initial exhaust gas temperature of compressor, judge exhaust gas temperature sensor
Release failure.
In one embodiment of the invention, as shown in figure 4, exhaust gas temperature sensor releases failure detector 1 also wraps
Include：Second judge module 20, the 3rd detection module 24, the 3rd judge module 26, the 3rd control module 28, the 4th judge module 30
With the 4th control module 32.
Specifically, the second judge module 20 is used for the exhaust for judging that start runs the compressor detected after the first preset duration
Whether the absolute value of the difference of the initial exhaust gas temperature of temperature and compressor is less than the first fiducial temperature；Second control module 22 is used
In delivery temperature and the difference of the initial exhaust gas temperature of compressor that the compressor detected after the first preset duration is run in start
Absolute value when being not less than the first fiducial temperature, stopping releases fault detect；Second control module 22 is additionally operable to run in start
The absolute value of the delivery temperature of the compressor detected after first preset duration and the difference of the initial exhaust gas temperature of compressor is less than
During the first fiducial temperature, start the 3rd detection module 24；3rd detection module 24 is used for after start runs the first preset duration
The aperture of electric expansion valve is detected, is additionally operable to detect the delivery temperature and electronics of compressor after start runs the second preset duration
The aperture of expansion valve；3rd judge module 26 is used for the exhaust temperature for judging that start runs the compressor detected after the second preset duration
Whether the absolute value for spending the difference for the delivery temperature that the compressor detected after the first preset duration is run with start is pre- less than second
If the temperature difference；3rd control module 28 is used for delivery temperature and the start that the compressor detected after the second preset duration is run in start
When running the absolute value of the difference of the delivery temperature of the compressor detected after the first preset duration and being not less than the second fiducial temperature, stop
Only release fault detect；3rd control module 28 is additionally operable to run the exhaust of the compressor detected after the second preset duration in start
The absolute value that temperature runs the difference of the delivery temperature of the compressor detected after the first preset duration with start is default less than second
During the temperature difference, start the 4th judge module 30；It is swollen that 4th judge module 30 is used for electronics after judging start the first preset duration of operation
It is default whether the absolute value of the aperture of swollen valve and the difference of the aperture of electric expansion valve after start the second preset duration of operation is more than
Aperture is poor；4th control module 32 is used for the aperture of electric expansion valve and start operation the after start runs the second preset duration
When the absolute value of the difference of the aperture of electric expansion valve is not more than default aperture difference after one preset duration, stopping releases failure inspection
Survey；4th control module 32 is additionally operable to run the delivery temperature of the compressor detected after the second preset duration in start and start is transported
When the absolute value of the difference of the delivery temperature of the compressor detected after the preset duration of row first is more than the second fiducial temperature, judge to arrange
Gas temperature sensor releases failure.
In one embodiment of the invention, exhaust gas temperature sensor releases failure detector 1, in addition to：At failure
Module is managed, for after judging that stating exhaust gas temperature sensor releases failure, the aperture of electric expansion valve to be locked into default open
Degree, while by the Frequency Locking of compressor to the second predeterminated frequency.
In one embodiment of the invention, exhaust gas temperature sensor releases failure detector 1, in addition to：At failure
Module is managed, for after judging that stating exhaust gas temperature sensor releases failure, output, which releases failure code and/or sends alarm, to be carried
Show.
The embodiment of third aspect present invention provides a kind of air conditioner (not shown), including connected by pipeline
Compressor, condenser, electric expansion valve and evaporator, the exhaust ports of the compressor are provided with exhaust gas temperature sensor, described
The exhaust gas temperature sensor that air conditioner is also included as described in above-mentioned any embodiment releases failure detector 1.
The air conditioner that the above embodiment of the present invention provides, the delivery temperature sensing described in any of the above-described embodiment is included because of it
Device releases failure detector 1, it is thus possible to progress very detection and processing well whether is released to exhaust gas temperature sensor, with
Avoid compressor from being damaged because of excessive discharge temperature, extend the service life of compressor.
The embodiment of fourth aspect present invention provides a kind of computer equipment, including memory, processor and is stored in
On the memory and the computer program that can run on the processor, described in the computing device during computer program
Realize the step of exhaust gas temperature sensor as described in above-mentioned any embodiment releases fault detection method.
The embodiment of fifth aspect present invention provides a kind of computer-readable recording medium, is stored thereon with computer journey
Sequence, realize that the exhaust gas temperature sensor as described in above-mentioned any embodiment releases event when the computer program is executed by processor
The step of hindering detection method.
In summary, exhaust gas temperature sensor provided in an embodiment of the present invention releases fault detection method, according to compressor
Start running frequency, judge whether to subsequently release fault detect；If compressor start running frequency is more than predeterminated frequency,
Judge whether exhaust gas temperature sensor occurs releasing failure according to the change of preset duration inner compressor delivery temperature；If exhaust temperature
Whether the smaller change then further according to the opening value of electric expansion valve in preset duration of change of degree judges exhaust gas temperature sensor
Appearance releases failure, and when judging that exhaust gas temperature sensor releases, the aperture of electric expansion valve is locked to relatively large
Default opening value, compressor frequency is locked to relatively small running frequency value, failure is released with Times, to prevent complete machine from going out
Existing irreversible damage or hydraulic performance decline.
In the description of this specification, the description of term " one embodiment ", " some embodiments ", " specific embodiment " etc.
Mean to combine at least one reality that specific features, structure, material or the feature that the embodiment or example describe are contained in the present invention
Apply in example or example.In this manual, identical embodiment or reality are not necessarily referring to the schematic representation of above-mentioned term
Example.Moreover, description specific features, structure, material or feature can in any one or more embodiments or example with
Suitable mode combines.
The preferred embodiments of the present invention are these are only, are not intended to limit the invention, for those skilled in the art
For member, the present invention can have various modifications and variations.Any modification within the spirit and principles of the invention, being made,
Equivalent substitution, improvement etc., should be included in the scope of the protection.
Claims (11)
1. a kind of exhaust gas temperature sensor releases fault detection method, suitable for air conditioner, the air conditioner include compressor and
Electric expansion valve, the exhaust ports of the compressor are provided with exhaust gas temperature sensor, it is characterised in that described to release fault detect
Method includes：
When the air conditioner starts shooting refrigeration or heating operation, detect outdoor environment temperature and set according to the outdoor environment temperature
The running frequency of the fixed compressor, while detect the initial exhaust gas temperature of the compressor；
Judge whether the running frequency of the compressor is more than the first predeterminated frequency；
If it is not, then no longer carry out releasing fault detect before start next time；
If so, the delivery temperature of the compressor is then detected after start runs the first preset duration；
Delivery temperature and the initial row of the compressor of the compressor detected after the first preset duration are run according to start
The difference of temperature degree, judges whether the exhaust gas temperature sensor releases failure.
2. exhaust gas temperature sensor according to claim 1 releases fault detection method, it is characterised in that the basis is opened
Machine runs the delivery temperature of the compressor detected after the first preset duration and the difference of the initial exhaust gas temperature of the compressor
Value, judges whether the exhaust gas temperature sensor releases failure, specifically includes：
Judge the delivery temperature of the compressor and the initial row of the compressor detected after start the first preset duration of operation
Whether the absolute value of the difference of temperature degree is less than the first fiducial temperature；
If it is not, then no longer carry out releasing fault detect before start next time；
If so, then detecting the aperture of the electric expansion valve, and the compressor is detected after start runs the second preset duration
Delivery temperature and the electric expansion valve aperture；
When judging that start runs delivery temperature and the default start operation first of the compressor detected after the second preset duration
Whether the absolute value of the difference of the delivery temperature of the compressor detected after length is less than the second fiducial temperature；
If it is not, then no longer carry out releasing fault detect before start next time；
If so, when then judging the aperture of the electric expansion valve and start operation first default after start the second preset duration of operation
Whether the absolute value of the difference of the aperture of the electric expansion valve it is poor be more than default aperture after length；
If it is not, then no longer carry out releasing fault detect before start next time；
If so, then judge that the exhaust gas temperature sensor releases failure.
3. exhaust gas temperature sensor according to claim 1 or 2 releases fault detection method, it is characterised in that is judging
It is described to state after exhaust gas temperature sensor releases failure, in addition to：
The aperture of the electric expansion valve is locked to default aperture, while the Frequency Locking of the compressor is preset to second
Frequency.
4. exhaust gas temperature sensor according to claim 1 or 2 releases fault detection method, it is characterised in that is judging
It is described to state after exhaust gas temperature sensor releases failure, in addition to：
Output releases failure code；And/or
Send alarm.
5. a kind of exhaust gas temperature sensor releases failure detector, suitable for air conditioner, the air conditioner include compressor and
Electric expansion valve, the exhaust ports of the compressor are provided with exhaust gas temperature sensor, it is characterised in that described to release fault detect
Device includes：
First detection module, for when the air conditioner starts shooting refrigeration or heating operation, detecting outdoor environment temperature and basis
The outdoor environment temperature sets the running frequency of the compressor, while detects the initial exhaust gas temperature of the compressor；
First judge module, for judging whether the running frequency of the compressor is more than the first predeterminated frequency；
First control module, for when the running frequency of the compressor is not more than first predeterminated frequency, stopping releasing
Fault detect；
First control module is additionally operable to when the running frequency of the compressor is more than first predeterminated frequency, starts the
Two detection modules；
Second detection module is used for after start runs the first preset duration the delivery temperature for detecting the compressor；
Second control module, for running delivery temperature and the institute of the compressor detected after the first preset duration according to start
The difference of the initial exhaust gas temperature of compressor is stated, judges whether the exhaust gas temperature sensor releases failure.
6. exhaust gas temperature sensor according to claim 5 releases failure detector, it is characterised in that also includes：
Second judge module, delivery temperature and the institute of the compressor detected after the first preset duration are run for judging to start shooting
Whether the absolute value for stating the difference of the initial exhaust gas temperature of compressor is less than the first fiducial temperature；
Second control module be used for start run the delivery temperature of the compressor that is detected after the first preset duration with
When the absolute value of the difference of the initial exhaust gas temperature of the compressor is not less than first fiducial temperature, stopping releases failure inspection
Survey；
Second control module is additionally operable to run the delivery temperature of the compressor detected after the first preset duration in start
When being less than the first fiducial temperature with the absolute value of the difference of the initial exhaust gas temperature of the compressor, start the 3rd detection module；
3rd detection module is used for after start runs the first preset duration the aperture for detecting the electric expansion valve, also uses
The delivery temperature of the compressor and the aperture of the electric expansion valve are detected after the second preset duration is run in start；
3rd judge module, for the delivery temperature for running the compressor detected after the second preset duration that judges to start shooting with opening
Whether the absolute value that machine runs the difference of the delivery temperature of the compressor detected after the first preset duration is default less than second
The temperature difference；
3rd control module, for running delivery temperature and the start of the compressor detected after the second preset duration in start
The absolute value for running the difference of the delivery temperature of the compressor detected after the first preset duration is default not less than described second
During the temperature difference, stopping releases fault detect；
3rd control module is additionally operable to run the delivery temperature of the compressor detected after the second preset duration in start
The absolute value that the difference of the delivery temperature of the compressor detected after the first preset duration is run with start is default less than second
During the temperature difference, start the 4th judge module；
Aperture and start of 4th judge module for the electric expansion valve after judgement start the second preset duration of operation
Running the absolute value of the difference of the aperture of the electric expansion valve after the first preset duration, whether to be more than default aperture poor；
4th control module, for the aperture of the electric expansion valve after start runs the second preset duration and start operation the
When the absolute value of the difference of the aperture of the electric expansion valve is not more than the default aperture difference after one preset duration, stop releasing
Fault detect；
4th control module is additionally operable to run the delivery temperature of the compressor detected after the second preset duration in start
The absolute value that the difference of the delivery temperature of the compressor detected after the first preset duration is run with start is more than described second
During fiducial temperature, judge that the exhaust gas temperature sensor releases failure.
7. the exhaust gas temperature sensor according to claim 5 or 6 releases failure detector, it is characterised in that also includes：
Fault processing module, for after stating exhaust gas temperature sensor described in judgement and releasing failure, by the electric expansion valve
Aperture be locked to default aperture, while by the Frequency Locking of the compressor to the second predeterminated frequency.
8. the exhaust gas temperature sensor according to claim 5 or 6 releases failure detector, it is characterised in that also includes：
Fault processing module, for after exhaust gas temperature sensor is stated described in judgement and releases failure, output to release failure code
And/or send alarm.
9. a kind of air conditioner, including compressor, condenser, electric expansion valve and the evaporator connected by pipeline, the compression
The exhaust ports of machine are provided with exhaust gas temperature sensor, it is characterised in that also include as any one of claim 5 to 8
Exhaust gas temperature sensor releases failure detector.
10. a kind of computer equipment, including memory, processor and it is stored on the memory and can be on the processor
The computer program of operation, it is characterised in that
Realize that the delivery temperature as any one of Claims 1-4 passes described in the computing device during computer program
Sensor releases the step of fault detection method.
11. a kind of computer-readable recording medium, is stored thereon with computer program, it is characterised in that the computer program
Realize that the exhaust gas temperature sensor as any one of Claims 1-4 releases fault detection method when being executed by processor
The step of.
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| CN201710849626.3A CN107631413B (en) | 2017-09-20 | 2017-09-20 | Method and device for detecting loosening fault of exhaust temperature sensor and air conditioner |
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| CN201710849626.3A CN107631413B (en) | 2017-09-20 | 2017-09-20 | Method and device for detecting loosening fault of exhaust temperature sensor and air conditioner |
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| CN107631413B CN107631413B (en) | 2020-03-06 |
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