CN106500251A - Indoor fan automatic fault selftesting method and device - Google Patents
Indoor fan automatic fault selftesting method and device Download PDFInfo
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- CN106500251A CN106500251A CN201610940019.3A CN201610940019A CN106500251A CN 106500251 A CN106500251 A CN 106500251A CN 201610940019 A CN201610940019 A CN 201610940019A CN 106500251 A CN106500251 A CN 106500251A
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- indoor fan
- indoor
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/32—Responding to malfunctions or emergencies
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
Abstract
The invention discloses a kind of indoor fan automatic fault selftesting method, when starting process of self-test by blower fan indoors, switches the state of indoor fan, and obtains degree of superheat SH0 of indoor set；Degree of superheat SHt of indoor set is obtained after being spaced the first preset duration again；When whether difference DELTA Tt of SH0 and SHt is judged less than the first preset value, if so, then export indoor fan fault-signal.The invention also discloses a kind of indoor fan failure self-testing device.The present invention is compared by the degree of superheat under the different conditions to indoor fan machine operation indoors, obtain the size of difference and preset value, so as to judge that indoor fan whether there is failure, if there is failure then to export in terminal and show failure, thus the motility of the fault detect to indoor fan is improve, while providing convenience to maintainer.
Description
Technical field
A kind of the present invention relates to air-conditioning technical field, more particularly to indoor fan automatic fault selftesting method and device.
Background technology
In multiple central air conditioner field, vitals of the blower fan as forced heat-exchanging, to indoor fan automatic fault selftesting
Device evaporation, condensation situation important, its necessity and importance are self-evident.And instantly, for blower fan especially
It is that the more hidden indoor fan of installation site but lacks effective fault detect, anticipation, alarm method.How accurately to detect
Indoor fan failure is simultaneously made and problem that alarm is always very deeply concerned in the industry with protection.Though occur in that in the industry at present
For the fault detection method of indoor fan, but generally these methods are only applicable to the specific blower fan in part, for example DC driven
Blower fan, but the indoor fan that now market mainstream is still driven for exchange, even while DC fan, its partial fault still can not
Effectively detected.
Content of the invention
Present invention is primarily targeted at providing a kind of indoor fan automatic fault selftesting method and device, it is intended to improve indoor
The motility of the fault detect of blower fan, provides facility for maintainer, improves customer satisfaction and check indoor fan failure certainly
The depth of detection means running status deteriorates.
For achieving the above object, a kind of indoor fan automatic fault selftesting method that the present invention is provided is comprised the following steps：
When indoor fan starts process of self-test, switch the state of indoor fan, and obtain the degree of superheat of indoor set
SH0；
Degree of superheat SHt of indoor set is obtained after being spaced the first preset duration again；
When whether judging difference DELTA Tt of SH0 and SHt less than the first preset value, if so, then output indoor fan failure is believed
Number.
Preferably, described switching indoor fan state include by indoor fan from open state switch to closed mode or
Indoor fan is switched to open state from closed mode by person.
Preferably, also wrap after the step of when whether difference DELTA Tt for judging SH0 and SHt is less than the first preset value
Include：
When difference DELTA Tt of SH0 and SHt is more than or equal to the first preset value, then again by indoor fan from closed mode
Switch to open state or indoor fan is switched to off-mode from open state, and obtain the degree of superheat of indoor set
SH0′；
The degree of superheat SHt ' of indoor set is obtained after being spaced the second preset duration again；
When the difference DELTA Tt ' of SH0 ' and SHt ' is less than the second preset value, indoor fan fault-signal is exported.
Preferably, also include after the output indoor fan fault-signal：
The automatic repair function of startup separator, after the completion of reparation, whether failure judgement repairs successfully；
If it is not, then signal an alert.
Preferably, whether the failure judgement is repaired successful step and is included：
Failure is repaired after terminating automatically and executes the control instruction for turning off or on, and obtains the degree of superheat of indoor set
SH0″；
Degree of superheat SHt of indoor set is obtained after being spaced the 3rd preset duration again "；
Difference DELTA Tt as SH0 " and SHt " " is during more than or equal to three preset values, then fault restoration success.
Additionally, for achieving the above object, the present invention also provides a kind of indoor fan failure self-testing device to be included：
State handover module, for when indoor fan starts process of self-test, switching the state of indoor fan；
Degree of superheat acquisition module, for obtaining degree of superheat SH0 of indoor set while the state of indoor fan is switched；With
And after the first preset duration of interval, obtain degree of superheat SHt of indoor set again；
Breakdown judge module, during for whether judging difference DELTA Tt of SH0 and SHt less than the first preset value, if so, then defeated
Go out indoor fan fault-signal.
Preferably, the state handover module is used for switching the state of indoor fan and includes indoor fan from open state
Switch to closed mode or indoor fan is switched to open state from closed mode.
Preferably, the state handover module is additionally operable to：When difference DELTA Tt of SH0 and SHt is preset more than or equal to first
During value, then indoor fan is switched to open state from closed mode again or indoor fan is switched to pass from open state
Machine state；
The degree of superheat acquisition module is additionally operable to：While state switching is carried out again, the degree of superheat of indoor set is obtained
SH0′；And obtain the degree of superheat SHt ' of indoor set after the second preset duration is spaced again；
The breakdown judge module is additionally operable to：When the difference DELTA Tt ' of SH0 ' and SHt ' is less than the second preset value, room is exported
Inner blower fault-signal.
Preferably, the indoor fan failure self-testing device also includes：
Failure self-repair module, for the automatic repair function of startup separator；And whether failure judgement repaiies after the completion of repairing
Multiple success；
Alarm modules, for when fault restoration fails, signal an alert.
Preferably, the failure self-repair module specifically for：Failure repairs what execution after terminating was turned off or on automatically
Control instruction, and obtain degree of superheat SH0 of indoor set "；The degree of superheat of indoor set is obtained after being spaced the 3rd preset duration again
SHt″；Difference DELTA Tt as SH0 " and SHt " " is during more than or equal to three preset values, then fault restoration success.
When the embodiment of the present invention starts process of self-test by blower fan indoors, switch the state of indoor fan, and obtain
Degree of superheat SH0 of indoor set；Degree of superheat SHt of indoor set is obtained after being spaced the first preset duration again；Judge SH0's and SHt
When whether difference DELTA Tt is less than the first preset value, indoor fan fault-signal is if so, then exported.By to indoor fan indoors
Being compared for the degree of superheat under the different conditions of machine operation, obtains the size of difference and preset value, so as to judge indoor fan
Whether there is failure, if there is failure then exports and show failure in terminal, the method is for the reality of indoor fan failure
When early warning, client can be reminded to be fixed a breakdown with after-sales service personnel rapidly, not only improved CSAT but also checked system
Further damage.
Description of the drawings
Fig. 1 is that the total flow process of indoor fan automatic fault selftesting method first embodiment of the present invention and second embodiment is illustrated
Figure；
Fig. 2 is the schematic flow sheet of indoor fan automatic fault selftesting method 3rd embodiment of the present invention；
Fig. 3 is to judge in indoor fan automatic fault selftesting method 3rd embodiment of the present invention that whether successfully repair refinement flows
Journey schematic diagram；
Fig. 4 is the high-level schematic functional block diagram of indoor fan failure self-testing device first embodiment of the present invention；
Fig. 5 is the high-level schematic functional block diagram of indoor fan failure self-testing device 3rd embodiment of the present invention.
The realization of the object of the invention, functional characteristics and advantage will be described further in conjunction with the embodiments referring to the drawings.
Specific embodiment
It should be appreciated that specific embodiment described herein is not intended to limit the present invention only in order to explain the present invention.
The present invention provides a kind of indoor fan automatic fault selftesting method, with reference to Fig. 1, in one embodiment, the indoor fan
Automatic fault selftesting method includes：
Step S10, when indoor fan starts process of self-test, switches the state of indoor fan, and obtains indoor set
Degree of superheat SH0；
In the present embodiment, first control the indoor set to open, in the refrigeration of air-conditioning or during heating, when described
After indoor set is stable, start indoor fan self-inspection step, it should be noted that start indoor fan process of self-test can be
Arrange in fan trouble self-test device indoors in advance, automatic indoor fan self-inspection journey after indoor set operates steadily
Sequence, and can be the detection of automated periodic；Or be when research staff needs to detect indoor fan, can be with
Control instruction is issued in control terminal, indoor fan autotest is opened.Described control terminal can be computer, flat board
And mobile phone etc..
Specifically after indoor set is stable switch indoor fan running status, when the indoor set available machine time not
When enough long, indoor fan failure self-testing device causes in indoor fan failure self-testing device also in labile state
The change of parameters is more unstable, will affect the accuracy of data.Wherein judge whether indoor set is stable to lead to
Cross the indoor set stable time to be obtained according to repeatedly test default in operation so as to arrange preset duration control indoor set
Switch the state of indoor fan after duration.
The state of wherein described switching indoor fan include by indoor fan from open state switch to closed mode or
Person is that indoor fan is switched to open state from closed mode.
Specifically, when indoor fan is in running status, can issue control instruction closes indoor fan, issues control
Degree of superheat SH0 of now indoor set is further obtained during system instruction；Or be when indoor fan is closed, under
Sending out control instruction opens indoor fan, and obtains indoor set degree of superheat SH0 now simultaneously.It should be noted that detecting
In journey, indoor set is constantly in running status.
In the present embodiment, the acquisition methods of actual degree of superheat SH0 of the indoor temperature can first be detected and the degree of superheat
Related correlative, for example, the evaporating pressure of vaporizer, evaporating temperature and outlet temperature etc., the correlative according to detection are calculated
Degree of superheat SH0 is obtained, and the mode that indoor set SH0 is obtained according to the related correlation two of the degree of superheat is existing mode, and here is no longer
Repeat one by one.
Step S20, obtains degree of superheat SHt of indoor set again after being spaced the first preset duration；
Step S30, when whether judging difference DELTA Tt of SH0 and SHt less than the first preset value, if so, then exports indoor wind
Machine fault-signal.
Illustrate so that indoor fan switches to closed mode from unlatching as an example in the present embodiment.When indoor set runs one section
After time is stable, indoor fan failure self-testing device starts to execute indoor fan fault detect.Issue and close indoor fan
Instruction, and degree of superheat SH0 of now indoor set is obtained, indoor set is obtained again after indoor fan closes the first preset duration
Degree of superheat SHt.SH0 and SHt are made the difference, when difference DELTA Tt of the SH0 and SHt for obtaining is less than the first preset value, then it represents that
Now indoor fan is unable to normal switching-off, then export the fault-signal of indoor fan.First preset value is arranged in advance
The expected degree of superheat, as needed or the performance of indoor set is arranged.
Explanation is needed, can also in addition to the failure of start or closing to indoor fan is detected in the present embodiment
Whether break down in detection indoor fan running.One detection cycle can be specifically set, indoors the feelings of fan operation
Under condition, the degree of superheat of indoor set is periodically obtained, if it find that there is relatively large deviation with preset value in the degree of superheat for detecting, then
Send the fault-signal of indoor fan.The fault-signal can be represented in the form of the prompt tone or in the form of warning light etc..
When the present embodiment starts process of self-test by blower fan indoors, switch the state of indoor fan, and obtain interior
Degree of superheat SH0 of machine；Degree of superheat SHt of indoor set is obtained after being spaced the first preset duration again；Difference DELTA as SH0 and SHt
When Tt is less than the first preset value, indoor fan fault-signal is exported.By the different conditions to indoor fan machine operation indoors
Under the degree of superheat be compared, obtain the size of difference and preset value, so as to judge indoor fan with the presence or absence of failure, if
There is failure then to export in terminal and show failure, thus improve the motility of the fault detect to indoor fan.
Further, with reference to Fig. 1, based on indoor fan automatic fault selftesting method first embodiment of the present invention, in the present invention
In indoor fan automatic fault selftesting method second embodiment, also include after above-mentioned steps S30：
Step S40, when SH0 and SHt difference DELTA Tt be more than or equal to the first preset value when, then again by indoor fan from
Closed mode switches to open state or indoor fan is switched to off-mode from open state, and obtains indoor set
Degree of superheat SH0 '；
Step S50, obtains the degree of superheat SHt ' of indoor set again after being spaced the second preset duration；
Step S60, when the difference DELTA Tt ' of SH0 ' and SHt ' is less than the second preset value, exports indoor fan fault-signal.
Whether the present embodiment can continue detection on the premise of the detection of normal switching-off based on first embodiment to indoor fan
Whether indoor fan can be normally-open.Specifically, after indoor fan closes a period of time, and the detection of indoor fan is completed
Afterwards, obtain continuing to issue control instruction unlatching indoor fan in the case of indoor fan is normal, and obtain now indoor fan
Degree of superheat SH0 ', obtain the degree of superheat SHt ' of indoor set again after indoor fan opens the second preset duration of operation.Enter
One step SH0 ' and SHt ' is made the difference, when the difference DELTA Tt ' for obtaining SH0 ' and SHt ' is less than the second preset value, shows now room
Inner blower can not be normally-open, and indoor fan breaks down, then export indoor fan fault-signal.
Specifically, output detection indoor fan be turned on or off failure signal different, staff is made more with this
Plus understand know what failure indoor fan occurs that.
In the present embodiment, the indoor fan failure self-testing device can also first detect whether the indoor fan is deposited
In the problem for opening failure, when the indoor fan does not have opening failure, i.e., described indoor fan can be normal
During unlatching, then detect problem of the indoor fan with the presence or absence of closing fault.The present embodiment is by detecting the indoor fan
With the presence or absence of closing fault and unlatching failure, to find the failure of indoor fan in time, when the indoor fan breaks down,
So that the indoor fan self-test device carries out self-regeneration to a certain extent, it is achieved that the effective inspection to indoor fan
Survey, it is to avoid air-conditioning long-play in the case where blower fan breaks down, and avoid the indoor wind that indoor fan failure is brought
Machine coil temperature is too high, poor refrigerating efficiency or do not freeze, the problems such as cold-producing medium returns liquid, lubricating oil and is diluted, it is therefore prevented that air-conditioning
Suffered damage due to indoor fan failure problems.
Further, with reference to Fig. 2, implemented based on indoor fan automatic fault selftesting method first embodiment of the present invention and second
Example, in indoor fan automatic fault selftesting method 3rd embodiment of the present invention, also wraps after above-mentioned steps S30 or step S60
Include：
Step S70, the automatic repair function of startup separator；
Step S80, after the completion of reparation, whether failure judgement repairs successfully；
Step S90, if it is not, then signal an alert.
When finishing to indoor fan detection in the present embodiment, and obtain indoor fan and deposit after a failure, indoor fan therefore
Automatic for startup separator repair function is carried out the fault restoration to indoor fan by barrier self-test device.Specifically, work as indoor fan
After failure self-testing device sends fault-signal, user can issue control instruction, indoor fan fault self-checking according to control terminal
Survey device to be modified the parameter that indoor fan runs according to control instruction, the wind shelves parameter of such as indoor fan, or
It is to restart indoor set and indoor fan etc., specifically fault correction function can be carried out according to the failure of common indoor fan and be set
Put.Or indoor fan failure self-testing device automatic fault restoration work(when can there is failure according to indoor fan is detected
The operational factor of indoor fan can be modified or restart indoor set and indoor fan etc..
Further, after indoor fan failure self-testing device completes the automatic reparation of indoor fan, can be further
Judge whether the failure of indoor fan repairs successfully.Specifically, with reference to Fig. 3, judge whether indoor fan repairs successful step
Including：
Step S71, failure are repaired after terminating automatically and execute the control instruction for turning off or on, and obtain the mistake of indoor set
Temperature SH0 "；
Step S72, obtains degree of superheat SHt of indoor set again after being spaced the 3rd preset duration "；
Step S73, when difference DELTA Tt of SH0 " and SHt " " during more than or equal to three preset values, then fault restoration into
Work(.
Specifically, the fault restoration of indoor fan can be that indoor fan is also repaiied to which in the state of operation
Again which is repaired after multiple, or closing indoor fan, can be operated according to specific needs.With indoor wind
As a example by machine open state breaks down, when detecting indoor fan and being unable to normal boot-strap, indoor fan is closed, start and repair automatically
Multiple, to be repaired after the completion of reopen indoor fan, and obtain degree of superheat SH0 of now indoor set simultaneously ", interval the 3rd is preset
Degree of superheat SHt of indoor set is obtained after duration again ", and difference is done to SH0 " and SHt ", when difference DELTA Tt of SH0 " and SHt " "
During more than or equal to three preset values, then it represents that fault restoration success, indoor fan normal boot-strap.When Δ Tt " is also less than
Then represent during three preset values that failure is not removed, can now send the fault warning of strength, to point out user to be repaiied manually
Multiple.
The present embodiment can pass through event of the automatic repair function in indoor fan failure self-testing device to indoor fan
Barrier is repaired automatically, and can judge whether fault restoration is successfully completed, using this side to the automatic reparation of failure
Formula can use manpower and material resources sparingly, and can solve the failure of indoor fan appearance in time, and it is more convenient to provide for maintainer.
The present invention also provides a kind of indoor fan failure self-testing device, and with reference to Fig. 4, in one embodiment, the present invention is carried
For indoor fan failure self-testing device include：
State handover module 10, for when indoor fan starts process of self-test, switching the state of indoor fan；
In the present embodiment, first control the indoor set to open, in the refrigeration of air-conditioning or during heating, when described
After indoor set is stable, start indoor fan self-inspection step, it should be noted that start indoor fan process of self-test can be
Arrange in fan trouble self-test device indoors in advance, automatic indoor fan self-inspection journey after indoor set operates steadily
Sequence, and can be the detection of automated periodic；Or be when research staff needs to detect indoor fan, can be with
Control instruction is issued in control terminal, indoor fan autotest is opened.Described control terminal can be computer, flat board
And mobile phone etc..
Specifically after indoor set is stable switch indoor fan running status, when the indoor set available machine time not
When enough long, indoor fan failure self-testing device causes in indoor fan failure self-testing device also in labile state
The change of parameters is more unstable, will affect the accuracy of data.Wherein judge whether indoor set is stable to lead to
Cross the indoor set stable time to be obtained according to repeatedly test default in operation so as to arrange preset duration control indoor set
Switch the state of indoor fan after duration.
The state of wherein described switching indoor fan include by indoor fan from open state switch to closed mode or
Person is that indoor fan is switched to open state from closed mode.
Degree of superheat acquisition module 20, for obtaining degree of superheat SH0 of indoor set while the state of indoor fan is switched；
And after the first preset duration of interval, obtain degree of superheat SHt of indoor set again；
Breakdown judge module 30, during for whether judging difference DELTA Tt of SH0 and SHt less than the first preset value, if so, then
Output indoor fan fault-signal.
Specifically, when indoor fan is in running status, can issue control instruction closes indoor fan, issues control
Degree of superheat SH0 of now indoor set is further obtained during system instruction；Or be when indoor fan is closed, under
Sending out control instruction opens indoor fan, and obtains indoor set degree of superheat SH0 now simultaneously.It should be noted that detecting
In journey, indoor set is constantly in running status.
In the present embodiment, the acquisition methods of actual degree of superheat SH0 of the indoor temperature can first be detected and the degree of superheat
Related correlative, for example, the evaporating pressure of vaporizer, evaporating temperature and outlet temperature etc., the correlative according to detection are calculated
Degree of superheat SH0 is obtained, and the mode that indoor set SH0 is obtained according to the related correlation two of the degree of superheat is existing mode, and here is no longer
Repeat one by one.
Illustrate so that indoor fan switches to closed mode from unlatching as an example in the present embodiment.When indoor set runs one section
After time is stable, indoor fan failure self-testing device starts to execute indoor fan fault detect.Issue and close indoor fan
Instruction, and degree of superheat SH0 of now indoor set is obtained, indoor set is obtained again after indoor fan closes the first preset duration
Degree of superheat SHt.SH0 and SHt are made the difference, when difference DELTA Tt of the SH0 and SHt for obtaining is less than the first preset value, then it represents that
Now indoor fan is unable to normal switching-off, then export the fault-signal of indoor fan.First preset value is arranged in advance
The expected degree of superheat, as needed or the performance of indoor set is arranged.
Explanation is needed, can also in addition to the failure of start or closing to indoor fan is detected in the present embodiment
Whether break down in detection indoor fan running.One detection cycle can be specifically set, indoors the feelings of fan operation
Under condition, the degree of superheat of indoor set is periodically obtained, if it find that there is relatively large deviation with preset value in the degree of superheat for detecting, then
Send the fault-signal of indoor fan.
When the present embodiment starts process of self-test by blower fan indoors, switch the state of indoor fan, and obtain interior
Degree of superheat SH0 of machine；Degree of superheat SHt of indoor set is obtained after being spaced the first preset duration again；Difference DELTA as SH0 and SHt
When Tt is less than the first preset value, indoor fan fault-signal is exported.By the different conditions to indoor fan machine operation indoors
Under the degree of superheat be compared, obtain the size of difference and preset value, so as to judge indoor fan with the presence or absence of failure, if
There is failure then to export in terminal and show failure, thus improve the motility of the fault detect to indoor fan.Described
Fault-signal can be represented in the form of the prompt tone or in the form of warning light etc..
Further, based on indoor fan failure self-testing device first embodiment of the present invention, in indoor fan of the present invention
In failure self-testing device second embodiment, the state handover module, degree of superheat acquisition module and breakdown judge module are also
Including following functions：
The state handover module is additionally operable to：When difference DELTA Tt of SH0 and SHt is more than or equal to the first preset value, then
Indoor fan is switched to open state from closed mode again or indoor fan is switched to off-mode from open state；
The degree of superheat acquisition module is additionally operable to：While state switching is carried out again, the degree of superheat of indoor set is obtained
SH0′；And obtain the degree of superheat SHt ' of indoor set after the second preset duration is spaced again；
The breakdown judge module is additionally operable to：When the difference DELTA Tt ' of SH0 ' and SHt ' is less than the second preset value, room is exported
Inner blower fault-signal.
Whether the present embodiment can continue detection on the premise of the detection of normal switching-off based on first embodiment to indoor fan
Whether indoor fan can be normally-open.Specifically, after indoor fan closes a period of time, and the detection of indoor fan is completed
Afterwards, obtain continuing to issue control instruction unlatching indoor fan in the case of indoor fan is normal, and obtain now indoor fan
Degree of superheat SH0 ', obtain the degree of superheat SHt ' of indoor set again after indoor fan opens the second preset duration of operation.Enter
One step SH0 ' and SHt ' is made the difference, when the difference DELTA Tt ' for obtaining SH0 ' and SHt ' is less than the second preset value, shows now room
Inner blower can not be normally-open, and indoor fan breaks down, then export indoor fan fault-signal.
Specifically, output detection indoor fan be turned on or off failure signal different, staff is made more with this
Plus understand know what failure indoor fan occurs that.
In the present embodiment, the indoor fan failure self-testing device can also first detect whether the indoor fan is deposited
In the problem for opening failure, when the indoor fan does not have opening failure, i.e., described indoor fan can be normal
During unlatching, then detect problem of the indoor fan with the presence or absence of closing fault.The present embodiment is by detecting the indoor fan
With the presence or absence of closing fault and unlatching failure, to find the failure of indoor fan in time, when the indoor fan breaks down,
So that the indoor fan self-test device carries out self-regeneration to a certain extent, it is achieved that the effective inspection to indoor fan
Survey, it is to avoid air-conditioning long-play in the case where blower fan breaks down, and avoid the indoor wind that indoor fan failure is brought
Machine coil temperature is too high, poor refrigerating efficiency or do not freeze, the problems such as cold-producing medium returns liquid, lubricating oil and is diluted, it is therefore prevented that air-conditioning
Suffered damage due to indoor fan failure problems.
Further, with reference to Fig. 5, implemented based on indoor fan failure self-testing device first embodiment of the present invention and second
Example, in indoor fan failure self-testing device 3rd embodiment of the present invention, the indoor fan failure self-testing device is also wrapped
Include：
Failure self-repair module 40, for the automatic repair function of startup separator；And after the completion of repairing whether failure judgement
Repair successfully；
Alarm modules 50, for when fault restoration fails, signal an alert.
When finishing to indoor fan detection in the present embodiment, and obtain indoor fan and deposit after a failure, indoor fan therefore
Automatic for startup separator repair function is carried out the fault restoration to indoor fan by barrier self-test device.Specifically, work as indoor fan
After failure self-testing device sends fault-signal, user can issue control instruction, indoor fan fault self-checking according to control terminal
Survey device to be modified the parameter that indoor fan runs according to control instruction, the wind shelves parameter of such as indoor fan, or
It is to restart indoor set and indoor fan etc., specifically fault correction function can be carried out according to the failure of common indoor fan and be set
Put.Or indoor fan failure self-testing device automatic fault restoration work(when can there is failure according to indoor fan is detected
The operational factor of indoor fan can be modified or restart indoor set and indoor fan etc..
Further, after indoor fan failure self-testing device completes the automatic reparation of indoor fan, can be further
Judge whether the failure of indoor fan repairs successfully.Specifically the failure self-repair module specifically for：Failure is repaired automatically
The control instruction for turning off or on is executed after end, and obtains degree of superheat SH0 of indoor set "；After being spaced the 3rd preset duration
Degree of superheat SHt of indoor set is obtained again "；Difference DELTA Tt as SH0 " and SHt " is " during more than or equal to three preset values, then
Fault restoration success
Specifically, the fault restoration of indoor fan can be that indoor fan is also repaiied to which in the state of operation
Again which is repaired after multiple, or closing indoor fan, can be operated according to specific needs.With indoor wind
As a example by machine open state breaks down, when detecting indoor fan and being unable to normal boot-strap, indoor fan is closed, start and repair automatically
Multiple, to be repaired after the completion of reopen indoor fan, and obtain degree of superheat SH0 of now indoor set simultaneously ", interval the 3rd is preset
Degree of superheat SHt of indoor set is obtained after duration again ", and difference is done to SH0 " and SHt ", when difference DELTA Tt of SH0 " and SHt " "
During more than or equal to three preset values, then it represents that fault restoration success, indoor fan normal boot-strap.When Δ Tt " is also less than
Then represent during three preset values that failure is not removed, can now send the fault warning of strength, to point out user to be repaiied manually
Multiple.
The present embodiment can pass through event of the automatic repair function in indoor fan failure self-testing device to indoor fan
Barrier is repaired automatically, and can judge whether fault restoration is successfully completed, using this side to the automatic reparation of failure
Formula can use manpower and material resources sparingly, and can solve the failure of indoor fan appearance in time, and it is more convenient to provide for maintainer.
The preferred embodiments of the present invention are these are only, the scope of the claims of the present invention is not thereby limited, every using this
Equivalent structure or equivalent flow conversion that bright description 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 indoor fan automatic fault selftesting method, it is characterised in that the indoor fan automatic fault selftesting method include with
Lower step：
When indoor fan starts process of self-test, switch the state of indoor fan, and obtain degree of superheat SH0 of indoor set；
Degree of superheat SHt of indoor set is obtained after being spaced the first preset duration again；
When whether difference DELTA Tt of SH0 and SHt is judged less than the first preset value, if so, then export indoor fan fault-signal.
2. indoor fan automatic fault selftesting method as claimed in claim 1, it is characterised in that the shape of the switching indoor fan
State includes for indoor fan switching to closed mode from open state or indoor fan is switched to start shape from closed mode
State.
3. indoor fan automatic fault selftesting method as claimed in claim 2, it is characterised in that the difference of the judgement SH0 and SHt
Also include after the step of when whether value Δ Tt is less than the first preset value：
When difference DELTA Tt of SH0 and SHt is more than or equal to the first preset value, then again indoor fan is switched from closed mode
Off-mode is switched to open state or by indoor fan from open state, and obtain degree of superheat SH0 of indoor set；
Degree of superheat SHt of indoor set is obtained after being spaced the second preset duration again；
When the difference DELTA Tt ' of SH0 ' and SHt ' is less than the second preset value, indoor fan fault-signal is exported.
4. the indoor fan automatic fault selftesting method as described in any one of claim 1-3, it is characterised in that the output is indoor
Also include after fan trouble signal：
The automatic repair function of startup separator, after the completion of reparation, whether failure judgement repairs successfully；
If it is not, then signal an alert.
5. indoor fan automatic fault selftesting method as claimed in claim 4, it is characterised in that whether the failure judgement repairs
Successful step includes：
Failure is repaired after terminating automatically and executes the control instruction for turning off or on indoor fan, and obtains the degree of superheat of indoor set
SH0″；
Degree of superheat SHt of indoor set is obtained after being spaced the 3rd preset duration again "；
Difference DELTA Tt as SH0 " and SHt " " is during more than or equal to three preset values, then fault restoration success.
6. a kind of indoor fan failure self-testing device, it is characterised in that indoor fan failure self-testing device includes：
State handover module, for when indoor fan starts process of self-test, switching the state of indoor fan；
Degree of superheat acquisition module, for obtaining degree of superheat SH0 of indoor set while the state of indoor fan is switched；And
Degree of superheat SHt of indoor set is obtained after the first preset duration again；
Breakdown judge module, during for whether judging difference DELTA Tt of SH0 and SHt less than the first preset value, if so, then exports room
Inner blower fault-signal.
7. indoor fan failure self-testing device as claimed in claim 6, it is characterised in that the state handover module is used for
The state of switching indoor fan includes for indoor fan switching to closed mode or by indoor fan from pass from open state
Closed state switches to open state.
8. indoor fan failure self-testing device as claimed in claim 7, it is characterised in that the state handover module is also used
In：When difference DELTA Tt of SH0 and SHt is more than or equal to the first preset value, then again indoor fan is switched from closed mode
Off-mode is switched to open state or by indoor fan from open state；
The degree of superheat acquisition module is additionally operable to：While state switching is carried out again, degree of superheat SH0 of indoor set is obtained；
And obtain degree of superheat SHt of indoor set after the second preset duration is spaced again；
The breakdown judge module is additionally operable to：When the difference DELTA Tt ' of SH0 ' and SHt ' is less than the second preset value, the indoor wind of output
Machine fault-signal.
9. the indoor fan failure self-testing device as described in any one of claim 6-8, it is characterised in that the indoor fan
Failure self-testing device also includes：
Failure self-repair module, for the automatic repair function of startup separator；And whether failure judgement repairs into after the completion of repairing
Work(；
Alarm modules, for when fault restoration fails, signal an alert.
10. indoor fan failure self-testing device as claimed in claim 9, it is characterised in that the failure self-repair module
Specifically for：Failure is repaired after terminating automatically and executes the control instruction for turning off or on, and obtains the degree of superheat of indoor set
SH0″；Degree of superheat SHt of indoor set is obtained after being spaced the 3rd preset duration again "；When difference DELTA Tt of SH0 " and SHt " " is more than
Or when being equal to three preset values, then fault restoration success.
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| CN106500251B (en) | 2019-12-06 |
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