CN109631388A - A kind of air-conditioning heating four-way valve commutation exception control method, apparatus and air conditioner - Google Patents
A kind of air-conditioning heating four-way valve commutation exception control method, apparatus and air conditioner Download PDFInfo
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- CN109631388A CN109631388A CN201910020289.6A CN201910020289A CN109631388A CN 109631388 A CN109631388 A CN 109631388A CN 201910020289 A CN201910020289 A CN 201910020289A CN 109631388 A CN109631388 A CN 109631388A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B13/00—Compression machines, plants or systems, with reversible cycle
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- 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
- F24F11/38—Failure diagnosis
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- 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
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/873—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling refrigerant heaters
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
- F25B2313/029—Control issues
- F25B2313/0292—Control issues related to reversing valves
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- General Engineering & Computer Science (AREA)
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- Combustion & Propulsion (AREA)
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- Biomedical Technology (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The present invention provides a kind of air-conditioning heating four-way valve commutation exception control method, apparatus and air conditioner, it is related to air-conditioning technical field, including receives heating mode open signal, detection inner ring temperature Ta, inner tube temperature Tn and outer tube temperature Tw；Compressor run the first duration t1 after, carry out first judgement, judge four-way valve whether commutation failure；First judgement: the difference for whether meeting Ta and initial inner tube temperature Tn0 simultaneously is less than or equal to the first preset value T1, the difference of initial inner tube temperature Tn0 and Tn is more than or equal to the second preset value T2 and the difference of initial outer tube temperature Tw0 and Tw are less than or equal to third preset value T3；It is then to judge four-way valve commutation failure, close compressor；It is no, then judge that four-way valve commutates successfully, air-conditioning continues to run.Control method, device and air conditioner of the present invention, more accurate judgement and protection air-conditioning, deterministic process is accurate, solves the problems, such as four-way valve failure and blows a cold wind over, improves the level of comfort of user.
Description
Technical field
The present invention relates to air-conditioning technical field, in particular to a kind of air-conditioning heating four-way valve commutation exception control method, dress
It sets and air conditioner.
Background technique
In the prior art, air-conditioning is the switching that refrigeration and heating mode are realized by four-way valve commutation, and air-conditioning is being run
In occur the problem that in low-voltage 140V hereinafter, when opening heating, four-way valve device must not electricity and commutation failure, complete machine system
System is run according to refrigeration mode, influences user's level of comfort；Four-way valve itself is abnormal, and when opening heating, four-way valve device must not be electric,
Complete machine influences user's level of comfort according to refrigerating operaton；The damage of hardware itself circuit, when opening heating, four-way valve device must not be electric,
Complete machine influences user's level of comfort according to refrigerating operaton.When there are above-mentioned or other problems, four-way valve can not be changed normally
To air conditioner itself can not be controlled, and air conditioner is made to blow a cold wind in a heating mode, influence the level of comfort of client.
Summary of the invention
In view of this, exception control method and air conditioner the present invention is directed to propose a kind of air-conditioning heating four-way valve commutates, with
After solving air conditioner four-way valve commutation failure, air conditioner blowing cold air without control, the problem of influencing client's level of comfort.
In order to achieve the above objectives, the technical scheme of the present invention is realized as follows:
A kind of air-conditioning heating four-way valve commutation exception control method, which comprises the steps of:
Receive air-conditioning heating mode on signal, real-time detection inner ring temperature Ta, inner tube temperature Tn and outer tube temperature Tw；
Compressor run the first duration t1 after, carry out first judgement, judge four-way valve whether commutation failure；
First judgement includes: whether that the difference for meeting inner ring temperature Ta and initial inner tube temperature Tn0 simultaneously is less than
It is more than or equal to the second preset value T2 and initially outer in the difference of the first preset value T1, initial inner tube temperature Tn0 and inner tube temperature Tn
The difference of tube temperature degree Tw0 and outer tube temperature Tw is less than or equal to third preset value T3；It is then to judge four-way valve commutation failure, closes
Compressor issues four-way valve fault-signal；It is no, then judge that four-way valve commutates successfully, air-conditioning continues to run.
Further, further includes: when judging result is four-way valve commutation failure, record judging result as four-way valve commutation
The judgement number F of failure, compressor restarting, then the first judgement is carried out, when judging result remains as four-way valve commutation failure
When, it is recycled again until the numerical value of the judgement number F turns off compressor when being more than or equal to preset times value Fy, and issues four
Port valve fault-signal；The preset times value Fy is in 2~5 ranges.
Further, further includes:
When issuing four-way valve fault-signal, the second judgement is carried out, it is determined whether to enable electric heating functions；
Whether second judgement includes: the difference of inner ring temperature Ta and set temperature Ts less than the 4th preset value T4, is,
Then open electric heating function, the low wind operation of inner blower；It is no, then it returns and re-starts the second judgement.
Further, after opening electric heating function, third judgement is carried out, judges whether to close electric heating function；
The third judgement includes: whether the difference of inner ring temperature Ta and set temperature Ts is more than or equal to the 4th preset value T4
Or whether inner tube temperature Tn is more than or equal to the 6th preset value T6, is, then closes electric heating function；It is no, then maintain electric heating function
Open state, and return and re-start third judgement；The 4th preset value T4 is in 4~8 ranges.
Further, further includes:
After closing electric heating function, the 4th judgement is carried out, judges whether to reopen electric heating function；
4th judgement includes: whether the difference of inner ring temperature Ta and set temperature Ts is less than or equal to the 5th preset value
T5 is then to open electric heating function, and return and re-start third judgement；It is no, then it is not turned on motor heat function, and return to weight
Newly carry out the 4th judgement；The 5th preset value T5 is in -2~4 ranges.
Further, second judgement further include: whether inner tube temperature Tn is less than the 6th preset value T6, if full simultaneously
Whether whether the difference of sufficient inner ring temperature Ta and set temperature Ts be less than or equal to the 4th preset value T4 and inner tube temperature Tn less than the
Six preset value T6 are then to open electric heating function；It is no, then it returns and re-starts second judgement；The 6th preset value T6
In 50~60 ranges.
Further, further include the 5th judgement, before carrying out the 4th judgement, first carry out the 5th judgement；
5th judgement includes: whether inner tube temperature Tn is less than or equal to the 7th preset value T7, is, then enters the 4th and sentence
It is disconnected；No, then electric heating remains off state, and returns and re-start the 5th judgement；The 7th preset value T7 40~
In 50 ranges.
Further, it after the heating function is opened, is run using the endless form that interruption opens and closes, opening process
In at interval of the second duration t2 close third duration t3, the second duration t2 is within the scope of 30~120 minutes, when the third
Long t3 is within the scope of 10~60 minutes.
Further, the first duration t1 is within the scope of 3~15 minutes；The first preset value T1 is in 1~10 range
Interior, the second preset value T2 is in 0~10 range, and the third preset value T3 is in 2~10 ranges.
Further, the air-conditioning heating four-way valve commutation exception control method is exited when air-conditioning enters defrosting mode, it is empty
It mediates during test pattern without air-conditioning heating four-way valve commutation exception control method；
After electric heating function is opened, when receiving off signal, non-heating mode signal or inner blower stop signal, electricity
Heating is directly closed.
Compared with the existing technology, air-conditioning heating four-way valve commutation exception control method of the present invention has following excellent
Gesture:
(1) air-conditioning heating four-way valve commutation exception control method of the present invention, according to air-conditioning system heating mode
Operation logic, if four-way valve must not be electric after heating mode unlatching, outer tube temperature rises to be declined with inner ring temperature, according to coil pipe
The variation of temperature judges whether four-way valve commutates success, and more accurate judgement and protection air-conditioning reduce misjudgment phenomenon, so that
Deterministic process is more accurate, solves the problems, such as four-way valve failure and blows a cold wind over, improves the level of comfort of user.
(2) air-conditioning heating four-way valve commutation exception control method of the present invention, after judging four-way valve commutation exception,
Restarted by compressor and judged again, prevented the commutation of four-way valve single abnormal and lead to air conditioner abnormality alarm, improve
The accuracy of detection process.
(3) air-conditioning heating four-way valve commutation exception control method of the present invention, when judging result is four-way valve commutation
When failure, air conditioner close compressor, and by opening electric heating function, ensure user to environment by electrically heated work
The demand of heat not only can ensure that the normal operation and protection of air conditioner, but also can temporarily improve the comfort level of user.
(4) air-conditioning heating four-way valve commutation exception control method of the present invention, can effectively avoid in tube temperature one
Straight to increase, when tube temperature temperature is higher, temperature continues to increase and cause damages to air-conditioning, improves the protection to air conditioner itself
Degree.
Another object of the present invention is to propose a kind of air-conditioning heating four-way valve commutation exception control device, comprising:
Temperature sensor, for detecting inner ring temperature Ta, inner tube temperature Tn and outer tube temperature Tw；
Controller, for receiving inner ring temperature Ta, inner tube temperature Tn and outer tube temperature Tw, according to inner ring temperature Ta, inner tube
Temperature Tn and outer tube temperature Tw judge four-way valve whether commutation failure, and control the open and close of electric heating function.
Another object of the present invention is to propose a kind of air conditioner, changed including any of the above-described air-conditioning heating four-way valve
To exception control device.
Possessed advantage is identical compared with the existing technology with above-mentioned control method for the air conditioner, and details are not described herein.
Detailed description of the invention
The attached drawing for constituting a part of the invention is used to provide further understanding of the present invention, schematic reality of the invention
It applies example and its explanation is used to explain the present invention, do not constitute improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is the commutation exception control method flow schematic diagram one of air-conditioning heating four-way valve described in the embodiment of the present invention；
Fig. 2 is the commutation exception control method flow schematic diagram two of air-conditioning heating four-way valve described in the embodiment of the present invention；
Fig. 3 is step S5 flow diagram one described in the embodiment of the present invention；
Fig. 4 is step S5 flow diagram two described in the embodiment of the present invention.
Specific embodiment
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the present invention can phase
Mutually combination.
The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
The term " first " that is previously mentioned in an embodiment of the present invention, " second " are used for description purposes only, and can not understand
For indication or suggestion relative importance or implicitly indicate the quantity of indicated technical characteristic.Define as a result, " first ",
The feature of " second " can explicitly or implicitly include one or more of the features.
Embodiment one
The present invention provides a kind of air-conditioning heating four-way valve commutation exception control methods, as shown in connection with fig. 1, control method packet
It includes:
S1, obtain heating mode open signal: when user opens air conditioner, and opens heating mode, air conditioner is obtained
Heating mode open signal；
S2, real-time detection temperature value: real-time detection inner ring temperature Ta, inner tube temperature Tn and outer tube temperature Tw, inner ring temperature
For the indoor environment temperature where air conditioner, wherein when receiving heating mode open signal moment, the temperature value packet of detection
Include initial inner tube temperature Tn0 and initial outer tube temperature Tw0；
S3, compressor run the first duration t1: after running the first duration t1, then being judged, can effectively prevent making
The rigid open stage of heat pattern, the temperature change opened by heating mode does not occur for coil temperature, so that judging four-way according to temperature
The valve abnormal judgment accuracy that whether commutates is higher；S4, carry out the first judgement, judge four-way valve whether commutation failure: described the
The difference that one judgement includes: whether to meet simultaneously inner ring temperature Ta and initial inner tube temperature Tn0 be less than or equal to the first preset value T1,
The difference of initial inner tube temperature Tn0 and inner tube temperature Tn is more than or equal to the second preset value T2 and initial outer tube temperature Tw0 and outer tube
The difference of temperature Tw is less than or equal to third preset value T3；It is then to judge four-way valve commutation failure, close compressor issues four-way
Valve fault-signal；It is no, then judge that four-way valve commutates successfully, air-conditioning continues to run.
In the work of air-conditioning heating mode, if four-way valve commutation failure, the temperature of outer tube rises, and at a temperature of inner ring
Drop, before heating mode unlatching, the temperature of inner tube should be equal to the temperature of indoor environment, and under the conditions of heating mode, inner ring
Temperature should be gradually increased and be greater than initial inner tube temperature, if the temperature of inner ring is than in initial after heating mode operation
Tube temperature degree is also small, makes environment temperature lower for air-conditioning blowing cold air, this is caused as a result, making for four-way valve commutation failure
When heat pattern operates normally, inner tube temperature rises, and the decline of outer tube temperature if reversed order, is made for four-way valve commutation failure
At caused by blowing a cold wind over as a result, the present embodiment is according to the operation logic of system, if heating four-way valve must not electricity, in outer tube temperature
It rises, inner tube temperature decline, the decline of inner ring temperature, judges that the judgement for keeping air-conditioning more accurate is protected jointly by three conditions, subtract
Few misjudgment phenomenon.
In the present embodiment, the first duration t1, or can be according to specific requirements come when determining first within the scope of 0~15 minute
The specific value range of long t1, preferably, the first duration t1 are 10 minutes, compressor operation after ten minutes, coil temperature can be because
The work of compressor generates heating mode refrigerant and temperature change occurs, and running 10 minutes will not be larger to room temperature generation
Influence, both improved the levels of precision of detection, and be also prevented from after four-way valve commutation failure and air-conditioning is caused to blow a cold wind over overlong time；The
One preset value T1 is preferably 5 in 1~10 range；Second preset value T2 is preferably 5 in 2~10 ranges；Third is pre-
If value T3 is preferably 5 in 2~10 ranges, in the present embodiment, the preset value not value since 0, so that inner tube and outer tube
It will not be judged as four-way valve commutation failure when temperature change certain amplitude, but to a certain extent by inner tube temperature decline, with
And outer tube temperature rises to a certain extent to be judged, prevents the occurrence of judging by accident.
The present embodiment is according to the operation logic of air-conditioning system heating mode, if four-way valve must not electricity after heating mode unlatching
When, outer tube temperature rises to be declined with inner ring temperature, judges whether four-way valve commutates success according to the variation of coil temperature, more
Accurately judgement and protection air-conditioning, reduce misjudgment phenomenon, so that deterministic process is more accurate.
In the present embodiment, preferably, after judging result is four-way valve commutation failure, control compressor is closed, Neng Gouyou
Effect prevents air conditioner from blowing a cold wind in a heating mode, influences the heat demand of user.
In the present embodiment, inner tube temperature Tn0 is the inner tube temperature at compressor start moment, and inner tube temperature Tn is compressor fortune
Real-time temperature collection in row, outer tube temperature Tw0 are the outer tube temperature at compressor start moment, and outer tube temperature Tw is compressor operation
In real-time temperature collection.
Embodiment two
On the basis of the above embodiments, as shown in connection with fig. 2, control method includes: the present embodiment
S1, obtain heating mode open signal: when user opens air conditioner, and opens heating mode, air conditioner is obtained
Heating mode open signal；
S2, real-time detection temperature value: real-time detection inner ring temperature Ta, inner tube temperature Tn and outer tube temperature Tw, wherein when
Receive the heating mode open signal moment, the temperature value of detection includes initial inner ring temperature Ta, initial inner tube temperature Tn0 and just
Beginning outer tube temperature Tw0；
S3, compressor run the first duration t1: after running the first duration t1, then being judged, can effectively prevent making
The rigid open stage of heat pattern, the temperature change opened by heating mode does not occur for coil temperature, so that judging four-way according to temperature
The valve abnormal judgment accuracy that whether commutates is higher；
S4, carry out first judgement, judge four-way valve whether commutation failure: it is described first judgement include: whether to meet simultaneously
The difference of inner ring temperature Ta and initial inner tube temperature Tn0 is less than or equal to the first preset value T1, initial inner tube temperature Tn0 and internal pipe temperature
The difference for spending Tn is more than or equal to the second preset value T2 and the difference of initial outer tube temperature Tw0 and outer tube temperature Tw is less than or equal to third
Preset value T3；It is no, then judge that four-way valve commutates successfully, air-conditioning continues to run；It is then to judge that four-way valve commutation failure, record are sentenced
Disconnected result is the judgement number F of four-way valve commutation failure, compressor restarting, then carries out the first judgement, when judging result still
When being so four-way valve commutation failure, recycled when the numerical value of the judgement number F is more than or equal to preset times value Fy again again
Close compressor, and issue four-way valve fault-signal.
In the present embodiment, the first duration t1, or can be according to specific requirements come when determining first within the scope of 3~15 minutes
The specific value range of long t1, preferably, the first duration t1 are 10 minutes；First preset value T1 is preferably in 1~10 range
5；Second preset value T2 is preferably 5 in 2~10 ranges；Third preset value T3 is preferably 5 in 2~10 ranges；Institute
Preset times value Fy is stated in 2~5 ranges, is preferably 3.
The present embodiment on the basis of the above embodiments, after judging four-way valve commutation exception, is restarted simultaneously by compressor
Judged again, prevents the commutation of four-way valve single abnormal and lead to air conditioner abnormality alarm, improve the accurate of detection process
Property.
In the present embodiment, the change of air conditioning operating mode does not remove air conditioner to the judging result of four-way valve condition of commutation,
But it removes and judges number F.
Embodiment three
The present embodiment on the basis of the above embodiments, as shown in connection with fig. 3, control method further include:
S5, when issuing four-way valve fault-signal, carry out the second judgement, it is determined whether to enable electric heating function, described the
Whether two judgements include: the difference of inner ring temperature Ta and set temperature Ts less than the 4th preset value T4, are then to open electric heating function
Energy；It is no, then it is not turned on electric heating function and return re-starts the second judgement, through inner ring temperature compared with set temperature, sentence
The temperature of disconnected current indoor is compared with set by user, it can be ensured that room is in a comfortable temperature；
After opening electric heating function, third judgement is carried out, judges whether to close electric heating function, the third judgement packet
Include: the difference of inner ring temperature Ta and set temperature Ts whether is more than or equal to the 4th preset value T4 or whether inner tube temperature Tn is greater than
In the 6th preset value T6, it is, then closes electric heating function；It is no, then electric heating function open state is maintained, and return and re-start
Third judgement.
After closing electric heating function, the 4th judgement is carried out, judges whether to reopen electric heating function, the described 4th sentences
It is disconnected to include: whether the difference of inner ring temperature Ta and set temperature Ts is less than or equal to the 5th preset value T5, it is then to open electric heating function
Can, and return and re-start third judgement；It is no, then it is not turned on motor heat function, and return and re-start the 4th judgement.
In the present embodiment, the 4th preset value T4 is preferably 6 in 4~8 ranges；5th preset value T5 is in -2~4 ranges
It is interior, it is preferably 2.
In the present embodiment, while electric heating is opened, inner blower is simultaneously according to low wind mode operation, and between electric heating uses
The disconnected endless form operation opened and closed, i.e., electric heating function is first opened, and closes electric heating after opening the second duration t2, is closed
It is again turned on electric heating after third duration t3, turns off third duration t3 after being spaced the second duration t2；When tube temperature temperature is not being protected
When within the scope of shield value, electrically heated service life will affect, the present embodiment can be avoided electric heating by the way of the heating of interval
Longtime running always makes tube temperature temperature in safe range, improves electrically heated service life.
In the present embodiment, for the second duration t2 within the scope of 30~120 minutes, preferable is 60 minutes；Third duration t3 exists
Within the scope of 10~60 minutes, preferable is 30 minutes.In the present embodiment, air-conditioning exits the air-conditioning heating when entering defrosting mode
Four-way valve commutation exception control method, air-conditioning are in during test pattern without air-conditioning heating four-way valve commutation exception
Control method；After electric heating function is opened, when receiving off signal, non-heating mode signal or inner blower stop signal,
Electric heating is directly closed.After opening electric heating function, stop when receiving off signal, non-heating mode signal or inner blower
When stop signal either signal, electric heating is directly closed, and prevents electric heating function out of control.Air-conditioning cycle power, removing judge number
F is detected again.
In the present embodiment, when judging result is four-way valve commutation failure, air conditioner close compressor, and by opening electricity
Heating function is ensured demand of the user to amount of heat by electrically heated work, both can ensure that the normal operation of air conditioner
With protection, and the comfort level of user can be temporarily improved.
Example IV
On the basis of the above embodiments, as shown in connection with fig. 4, control method includes: the present embodiment
S5, when issuing four-way valve fault-signal, carry out the second judgement, it is determined whether to enable electric heating function, described the
The difference that two judgements include: whether to meet simultaneously inner ring temperature Ta and set temperature Ts whether be less than or equal to the 4th preset value T4 and
Whether inner tube temperature Tn is then to open electric heating function less than the 6th preset value T6；It is no, then it is not turned on electric heating function and returns
It returns and re-starts the second judgement；
After opening electric heating function, third judgement is carried out, judges whether to close electric heating function, the third judgement packet
Include: the difference of inner ring temperature Ta and set temperature Ts whether is more than or equal to the 4th preset value T4 or whether inner tube temperature Tn is greater than
In the 6th preset value T6, it is, then closes electric heating function；It is no, then electric heating function open state is maintained, and return and re-start
Third judgement.
After closing electric heating function, the 5th judgement is carried out, the 5th judgement includes: whether inner tube temperature Tn is less than
It in the 7th preset value T7, is then to enter the 4th judgement；No, then electric heating remains off state, and returns and re-start described the
Five judgements.
When judging into the 4th, judge whether to reopen electric heating function, the 4th judgement includes: inner ring temperature
Whether the difference of Ta and set temperature Ts are less than or equal to the 5th preset value T5, be then open electric heating function, and return again into
The judgement of row third；It is no, then it is not turned on motor heat function, and return and re-start the 4th judgement.
In the present embodiment, the 6th preset value T6 is preferably 55 in 50~60 ranges；7th preset value T7 is 40~50
It is preferably 45 in range.
In the present embodiment, the judgement of inner tube temperature Tn and the 6th preset value T6 joined in the second judgement, it can be effective
Avoid increase always in tube temperature, when tube temperature temperature is higher temperature continue increase and cause damages to air-conditioning, improve to sky
Adjust the degree of protection of device itself；In the present embodiment, before carrying out the 4th judgement, the 5th judgement is first carried out, i.e., first judges internal pipe temperature
Whether degree Tn is less than or equal to the 7th preset value T7, can be then turned on electric heating function after tube temperature drops to certain temperature, prevent
After electric heating function is opened, coil temperature increases and makes air conditioner easy to damage, is also prevented from coil temperature and is being slightly less than the 6th in advance
If opening electric heating when value T6, heating time is not long and inner tube temperature Tn is more than or equal to the 6th preset value T6, causes electric heating
The continuous reciprocal open and close of function, will affect user's comfort effect, but will damage to air conditioner.
Embodiment five
Present embodiment discloses a kind of air conditioner, including non-transitorycomputer readable storage medium, the storage medium
It is stored with computer instruction, the computer instruction is performed, and realizes air-conditioning heating four-way described in any of the above-described embodiment
Valve commutation exception control method.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (12)
- A kind of exception control method 1. air-conditioning heating four-way valve commutates, which comprises the steps of:Receive air-conditioning heating mode on signal, real-time detection inner ring temperature Ta, inner tube temperature Tn and outer tube temperature Tw；Compressor run the first duration t1 after, carry out first judgement, judge four-way valve whether commutation failure；The difference that first judgement includes: whether to meet simultaneously inner ring temperature Ta and initial inner tube temperature Tn0 is less than or equal to the The difference of one preset value T1, initial inner tube temperature Tn0 and inner tube temperature Tn are more than or equal to the second preset value T2 and initial outer tube temperature The difference for spending Tw0 and outer tube temperature Tw is less than or equal to third preset value T3；It is then to judge four-way valve commutation failure, closes compression Machine issues four-way valve fault-signal；It is no, then judge that four-way valve commutates successfully, air-conditioning continues to run.
- 2. control method according to claim 1, which is characterized in that further include: when judging result is that four-way valve commutation is lost When losing, record judging result is the judgement number F of four-way valve commutation failure, and compressor restarting keeps heat pump mode operation, The first judgement is carried out again, when judging result remains as four-way valve commutation failure, recycles the number until the judgement number F again Value turns off compressor when being more than or equal to preset times value Fy, and issues four-way valve fault-signal；The preset times value Fy is 2 In~5 ranges.
- 3. according to claim 1 or 2 any control methods, which is characterized in that further include:When issuing four-way valve fault-signal, the second judgement is carried out, it is determined whether to enable electric heating functions；Whether second judgement includes: the difference of inner ring temperature Ta and set temperature Ts less than the 4th preset value T4, is then to open Open electric heating function, the low wind operation of inner blower；It is no, then it returns and re-starts second judgement.
- 4. control method according to claim 3, which is characterized in that further include:After opening electric heating function, third judgement is carried out, judges whether to close electric heating function；The third judgement includes: whether the difference of inner ring temperature Ta and set temperature Ts is more than or equal to the 4th preset value T4 or interior Whether tube temperature degree Tn is more than or equal to the 6th preset value T6, is then to close electric heating function；It is no, then maintain electric heating function to open State, and return and re-start third judgement；The 4th preset value T4 is in 4~8 ranges, and the 6th preset value T6 is 50 In~60 ranges.
- 5. control method according to claim 4, which is characterized in that further include:After closing electric heating function, the 4th judgement is carried out, judges whether to reopen electric heating function；4th judgement includes: whether the difference of inner ring temperature Ta and set temperature Ts is less than or equal to the 5th preset value T5, is, Electric heating function is then opened, and returns and re-starts third judgement；It is no, then it is not turned on motor heat function, and return and re-start 4th judgement；The 5th preset value T5 is in -2~4 ranges.
- 6. control method according to claim 3, which is characterized in that second judgement further include: inner tube temperature Tn is It is no less than the 6th preset value T6, if while whether to be less than or equal to the 4th pre- for the difference for meeting inner ring temperature Ta and set temperature Ts It is then to open electric heating function if whether value T4 and inner tube temperature Tn are less than the 6th preset value T6；It is no, then it returns again Carry out second judgement.
- 7. control method according to claim 5, which is characterized in that further include the 5th judgement, sentence carrying out the described 4th Before disconnected, the 5th judgement is first carried out；5th judgement includes: whether inner tube temperature Tn is less than or equal to the 7th preset value T7, is, then enters the 4th judgement；It is no, Then electric heating remains off state, and returns and re-start the 5th judgement；The 7th preset value T7 is in 40~50 ranges It is interior.
- 8. according to any control method of claim 4-7, which is characterized in that after the heating function is opened, between The disconnected endless form operation opened and closed closes third duration t3 at interval of the second duration t2 in opening process, and described second Duration t2 is within the scope of 30~120 minutes, and the third duration t3 is within the scope of 10~60 minutes.
- 9. control method according to claim 1, which is characterized in that the first duration t1 is within the scope of 3~15 minutes； The first preset value T1 is in 1~10 range, and the second preset value T2 is in 0~10 range, the third preset value T3 In 2~10 ranges.
- 10. according to claim 4,5,6,7 or 9 any control methods, which is characterized in that when air-conditioning enters defrosting mode The air-conditioning heating four-way valve commutation exception control method is exited, air-conditioning is in during test pattern without the air-conditioning system Hot four-way valve commutation exception control method；After electric heating function is opened, when receiving off signal, non-heating mode signal or inner blower stop signal, electric heating Directly close.
- The exception control device 11. a kind of air-conditioning heating four-way valve commutates characterized by comprisingTemperature sensor, for detecting inner ring temperature Ta, inner tube temperature Tn and outer tube temperature Tw；Controller, for receiving inner ring temperature Ta, inner tube temperature Tn and outer tube temperature Tw, according to inner ring temperature Ta, inner tube temperature Tn and outer tube temperature Tw judge four-way valve whether commutation failure, and control the open and close of electric heating function.
- 12. a kind of air conditioner, which is characterized in that including the abnormal control of the commutation of air-conditioning heating four-way valve described in the claims 11 Device processed.
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| CN113883700A (en) * | 2021-10-26 | 2022-01-04 | 科希曼电器有限公司 | Control method for judging four-way valve reversing |
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