CN110030660A - Air conditioner and its control method - Google Patents
Air conditioner and its control method Download PDFInfo
- Publication number
- CN110030660A CN110030660A CN201910234127.2A CN201910234127A CN110030660A CN 110030660 A CN110030660 A CN 110030660A CN 201910234127 A CN201910234127 A CN 201910234127A CN 110030660 A CN110030660 A CN 110030660A
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- Prior art keywords
- compressor
- stoppages
- air conditioner
- starting
- out failure
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Classifications
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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
-
- 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 present invention relates to a kind of air conditioner and its control method, which includes: the starting-up signal received for indicating unlatching air conditioner, starts the compressor of air conditioner；When step-out failure occurs in compressor, compressor shutdown is controlled, and recording compressed machine the number of stoppages of step-out failure occurs from after air conditioner booting；If the duration that the number of stoppages is less than or equal to the default highest number of stoppages and compressor shutdown restarts compressor when reaching preset duration, the starting current of this starting of the compressor starting current of one-shot thereon greatly；And whether detection compressor there is step-out failure again, repeatedly, until issuing the prompt information for occurring step-out failure for indicating compressor and needing repairing when the number of stoppages is higher than the starting current of the default highest number of stoppages or compressor restarting more than or equal to predetermined current threshold.The present invention not only reduces the step-out failure rate of compressor, but also will not influence the service life of compressor.
Description
Technical field
The present invention relates to air conditioners, more particularly to a kind of air conditioner and its control method.
Background technique
The core of air conditioner is compressor, and compressor be unable to do without the lubrication of refrigeration oil in the process of running.But in low temperature
In the state that environment and compressor are not run for a long time, refrigeration oil can be freezed, load torque when being again started up so as to cause compressor
Increase.When staring torque is lower than load torque, compressor will stall, gently then lead to compressor step-out, it is heavy then burn compression
Machine.
Existing air conditioner is to start compressor with fixed starting current, if starting current is smaller, compressor report
The failure rate of step-out is just high；The service life of compressor can be shortened if starting current is larger.When compressor starting current compared with
Hour, at low ambient temperatures, the mode for generalling use heating tape or compressor self-heating is thawed refrigeration oil, this mode time-consuming compared with
Long, effect is poor, and power-consuming.Moreover air conditioner, which has often just powered on, just will start compressor, and the modes such as heating tape do not rise
Effect.
Summary of the invention
One purpose of first aspect present invention is intended to overcome at least one defect in the prior art, and providing one kind can
Enough reduce compressor step-out failure rate does not influence the air-conditioner control method of compressor service life again.
Another purpose of first aspect present invention is to further avoid having an impact the service life of compressor.
One of first aspect present invention is further objective is that the stability that raising compressor start is run, avoids to pressure
The performance of contracting machine has an impact.
The purpose of second aspect of the present invention, which is to provide one kind, can either reduce compressor step-out failure rate and not influence to compress
The air conditioner of machine service life.
According to the first aspect of the invention, the present invention provides a kind of control method of air conditioner comprising:
The starting-up signal for being used for indicating to open the air conditioner is received, the compressor of the air conditioner is started；
When step-out failure occurs in the compressor, the compressor shutdown is controlled, and records the compressor described in
There is the number of stoppages of step-out failure after air conditioner booting；
If the number of stoppages is less than or equal to the default highest number of stoppages and the duration of the compressor shutdown reaches default
The compressor is restarted when duration, the starting of one-shot is electric thereon greatly for the starting current of this starting of the compressor
Stream；And
Detect whether the compressor step-out failure occurs again, repeatedly, until the number of stoppages is higher than described
When the default highest number of stoppages or the starting current of compressor restarting are more than or equal to predetermined current threshold, issue and use
In the prompt information for indicating that the compressor step-out failure occurs and needs repairing.
Optionally, the compressor is recorded from after air conditioner booting by the number of stoppages flag bit of the air conditioner
There is the number of stoppages of step-out failure；
When starting the compressor for the first time after air conditioner booting, the numerical value of the number of stoppages flag bit is
Zero；When step-out failure occurs in each compressor, the numerical value of the number of stoppages flag bit adds one；The compressor just
Often after starting, the numerical value of the number of stoppages flag bit is reset.
Optionally, the difference of the starting current that the compressor restarts every time and the starting current of last time starting is equal
It is identical.
Optionally, the starting current of the compressor start is calculated by following formula: IN=I0+ N × m, wherein
INIndicate that the compressor starting current being again started up after n times step-out failure, I occurs from air conditioner booting0
Indicate that the starting current of compressor starting for the first time after the air conditioner is switched on, N indicate the compressor from the air-conditioning
There is the number of stoppages of step-out failure after device booting, m is the parameter that value is positive number.
Optionally, I0Value be any current value of the range between 3~4A；And/or
The value of m is any value of the range between 0.5~1.5A.
Optionally, the predetermined current threshold is the demagnetization current of the compressor and the difference of setup parameter.
Optionally, the setup parameter is any value of the range between 3~7A；And/or
The demagnetization current of the compressor is any current value of the range between 19~25A.
Optionally, the default highest number of stoppages is any value of the range between 3~5.
Optionally, the preset duration is any duration value of the range between 0.5~1.5min.
According to the second aspect of the invention, the present invention also provides a kind of air conditioners, and the air conditioner is according to any of the above-described
The control method is run.
In air-conditioner control method of the invention, compressor restarts again after shutting down every time because there is step-out failure
When, the starting current of compressor is set greater than the starting current of one-shot thereon.That is, after air conditioner booting first
Start compressor with lesser starting current, if meeting the requirements, compressor can be operated normally；If being unsatisfactory for requiring, compressor meeting
There is step-out failure and is hereafter gradually increased the starting current of compressor once again.On the one hand, opening due to compressor
Streaming current gradually increases, and therefore, the probability that compressor normally starts gradually rises, and reduces the step-out event of compressor
Barrier rate, instead of traditional compressor heating tape and compressor preheating process；On the other hand, since the starting current of compressor is
The amplitude for gradually increasing, therefore increasing every time will not be very big, i.e., the starting current of compressor will not suddenly increase to very big, no
It will affect the service life of compressor.
Further, if the starting current of compressor gradually increases for several times, (i.e. the number of stoppages is higher than default highest failure time
Number) afterwards or after the starting current of compressor increases to predetermined current threshold, compressor is still not able to operate normally (i.e. still
There is step-out failure), at this point, not only It dones't help the situation, and it is also possible to can be because if being further continued for increasing the starting current of compressor
Starting current is excessive and influences the service life of compressor.At this point, issuing prompt information, compressor is prompted step-out failure occur simultaneously
It needs to repair, compressor step-out failure rate can be further decreased, further avoid generating shadow to the service life of compressor
It rings.
Further, the difference of the starting current that compressor restarts every time and the starting current of last time starting is homogeneous
Together, i.e. the starting current that restarts every time of compressor is all the same compared to the increment of the starting current of last time starting, also
To say, the starting current of compressor be gradually stablize it is increased, improve compressor start operation stability, avoid to compression
The performance and used life of machine has an impact.
According to the following detailed description of specific embodiments of the present invention in conjunction with the accompanying drawings, those skilled in the art will be brighter
The above and other objects, advantages and features of the present invention.
Detailed description of the invention
Some specific embodiments of the present invention is described in detail by way of example and not limitation with reference to the accompanying drawings hereinafter.
Identical appended drawing reference denotes same or similar part or part in attached drawing.It should be appreciated by those skilled in the art that these
What attached drawing was not necessarily drawn to scale.In attached drawing:
Fig. 1 is the schematic flow chart of the control method of air conditioner according to an embodiment of the invention；
Fig. 2 is the schematic flow chart of control method accord to a specific embodiment of that present invention.
Specific embodiment
Present invention firstly provides a kind of control method of air conditioner, Fig. 1 is air conditioner according to an embodiment of the invention
Control method schematic flow chart, referring to Fig. 1, control method of the invention includes:
The starting-up signal for indicating unlatching air conditioner is received, the compressor of air conditioner is started；
When step-out failure occurs in compressor, compressor shutdown is controlled, and recording compressed machine occurs from after air conditioner booting
The number of stoppages of step-out failure；
If the number of stoppages is less than or equal to the default highest number of stoppages and the duration of compressor shutdown reaches heavy when preset duration
New starting compressor, the starting current of this starting of the compressor starting current of one-shot thereon greatly；And
Whether detection compressor there is step-out failure again, repeatedly, until the number of stoppages is higher than default highest failure
When number or the starting current of compressor restarting are more than or equal to predetermined current threshold, issue for indicating that compressor occurs
Step-out failure and the prompt information to need repairing.
After receiving starting-up signal, air conditioner booting, compressor starts for the first time.Each compressor is due to there is step-out failure
When being again started up after shutdown, starting current of the starting current of compressor than the last starting before this starting is big.?
That is can start compressor first after air conditioner booting with lesser starting current, if meeting the requirements, compressor can be transported normally
Row；If being unsatisfactory for requiring, compressor will appear step-out failure, hereafter, be gradually increased the starting electricity of compressor once again
Stream.On the one hand, since the starting current of compressor gradually increases, the probability that compressor normally starts be gradually on
It rises, the step-out failure rate of compressor is reduced, instead of traditional compressor heating tape and compressor preheating process；Another party
Face, since the starting current of compressor gradually increases, the amplitude increased every time will not be very big, i.e. the starting of compressor
Electric current will not suddenly increase to very greatly, will not influence the service life of compressor.
Further, if the starting current of compressor gradually increases for several times, (i.e. the number of stoppages is higher than default highest failure time
Number) afterwards or after the starting current of compressor increases to predetermined current threshold, compressor is still not able to operate normally (i.e. still
There is step-out failure), at this point, not only It dones't help the situation, and it is also possible to can be because if being further continued for increasing the starting current of compressor
Starting current is excessive and influences the service life of compressor.At this point, issuing prompt information, compressor is prompted step-out failure occur simultaneously
It needs to repair, compressor step-out failure rate can be further decreased, further avoid generating shadow to the service life of compressor
It rings.
In some embodiments, the above-mentioned default highest number of stoppages can be any value of the range between 3~5.Tool
Body, which for example can be 3,4 or 5.If the default highest number of stoppages is too small, compressor will lead to
Continually there is step-out failure and increases the step-out failure rate of compressor.If the default highest number of stoppages is excessive, may lead
It causes the starting current of compressor excessive and the service life of compressor is had an impact.
In some embodiments, for indicating that the above-mentioned preset duration of compressor shutdown time span can exist for range
Any duration value between 0.5~1.5min.Specifically, the preset duration can for 0.5min, 0.6min, 0.7min,
0.8min, 0.9min, 1.0min, 1.1min, 1.2min, 1.3min, 1.4min or 1.5min.If the preset duration is too short, pressure
The performance of contracting machine may not restored also, its performance and used life can be had an impact by force by being again started up.If the preset duration
Too long, compressor may be restored to the state started for the first time after air conditioner booting, and the starting current of compressor is to increase at this time
Electric current afterwards may have an impact because of the excessive service life to compressor of starting current.
In some embodiments, can be gone out by the number of stoppages flag bit recording compressed machine of air conditioner from after air conditioner booting
The number of stoppages of existing step-out failure.Specifically, a number of stoppages flag bit can be set in the controller of air conditioner, for remembering
There is the number of stoppages of step-out failure from after air conditioner booting in record compressor.This recording mode eliminates additional for air conditioner
Computing module, it is simple, convenient.
When starting compressor for the first time after air conditioner booting, since not yet there is step-out failure in compressor from after being switched on,
Therefore, the numerical value of number of stoppages flag bit is zero at this time.When there is step-out failure in each compressor, the number of number of stoppages flag bit
Value adds one, to there is the number of stoppages of step-out failure by the real-time recording compressed machine of the numerical value of number of stoppages flag bit.It is pressing
After contracting machine normally starts, the numerical value of number of stoppages flag bit is reset, and recording compressed machine is certainly empty when being switched on again in order to air conditioner
There is the number of stoppages of step-out failure after adjusting device booting.
In some embodiments, the difference of the starting current of compressor restarts every time starting current and last starting
It is worth all the same, i.e. the starting current that restarts every time of compressor is homogeneous compared to the increment of the starting current of last time starting
Together.That is, the starting current of compressor is gradually that stable measurement is increased, the starting current variation width of compressor is avoided
It spends big or too small, improves the stability of compressor start operation, avoid to the generation of the performance and used life of compressor
It influences.
Specifically, the starting current of compressor start can be calculated by following formula: IN=I0+N×m.The formula can be with
It is pre-stored in the memory of air conditioner, the formula is transferred when needing to calculate the starting current of compressor every time.In the formula,
INIndicate that compressor the starting current being again started up after n times step-out failure occurs from air conditioner booting, that is to say, that INIt indicates
It is the compressor starting current that n-th restarts due to there is step-out failure from after air conditioner booting.I0Indicate that air conditioner is opened
The starting current of compressor starting for the first time after machine.N indicates that compressor occurs the failure time of step-out failure from after air conditioner booting
Number.M is the parameter that value is positive number.Thus, it is ensured that the starting current that compressor restarts every time is all larger than the last time and opens
Dynamic starting current, and can guarantee the difference of the starting current of the starting current that compressor restarts every time and last starting
It is worth all the same.
It, can be and public according to above-mentioned calculating according to the numerical value of number of stoppages flag bit that is, when compressor starts every time
Formula obtains the size of its starting current.For example, when compressor starts for the first time after air conditioner booting, due to occurring not yet
Step-out failure is crossed, therefore the value of N is 0, at this point, IN=I0.For another example, after air conditioner is switched on compressor because of first time step-out
Failure and when being again started up after shutting down for the first time, compressor is to restart for the first time, and the value of N is 1, at this point, IN=I0+m.Again
Such as, after air conditioner booting compressor because again step-out failure and when being again started up after shutting down again, compressor is second
Restarting, the value of N is 2, at this point, IN=I0+2m。
Further, I0Value can be any current value of the range between 3~4A.Specifically, I0Value for example
It can be 3.0A, 3.1A, 3.2A, 3.3A, 3.4A, 3.5A, 3.6A, 3.7A, 3.8A, 3.9A or 4.0A.Work as I0Value it is too small
When (being, for example, less than 3.0A), i.e., compressor is too small from the starting current that starts for the first time after air conditioner booting, may cause compression
Machine can not start at all or compressor will appear step-out failure certainly and increase the step-out failure rate of compressor.Work as I0Value
When excessive (being greater than 4.0A), i.e., compressor is excessive from the starting current that starts for the first time after air conditioner booting, may be because
The initia start-up current of compressor is excessive and misses the optimum start-up electric current of compressor, in some instances it may even be possible to the service life of compressor
It has an impact.
Further, the value of m can be any value of the range between 0.5~1.5A.Specifically, the value of m is for example
It can be 0.5A, 0.6A, 0.7A, 0.8A, 0.9A, 1.0A, 1.1A, 1.2A, 1.3A, 1.4A or 1.5A.When the value of m is too small
When (being, for example, less than 0.5A), compressor restart every time after starting current compared to last starting current increment mistake
It is small, that is to say, that the increment of the starting current of compressor is unobvious, may cause compressor and step-out failure repeatedly occurs and increase
The step-out failure rate of compressor.When the value of m excessive (being greater than 1.5A), the starting after compressor restarts every time is electric
Stream is excessive compared to the increment of last starting current, may miss the optimum start-up electric current of compressor, in some instances it may even be possible to right
The service life of compressor has an impact.
In some alternate embodiments, the starting electricity that compressor starts every time can also be obtained by way of tabling look-up
It flows, has in the table and the one-to-one starting current of the number of stoppages of step-out failure occur from after air conditioner booting with compressor
Value, the table can be pre-stored in the memory of air conditioner.
In some embodiments, for indicating that the above-mentioned predetermined current threshold of compressor start current maxima can be pressure
The demagnetization current of contracting machine and the difference of setup parameter.That is, the maximum starting current of compressor should be less than compressor
Demagnetization current is to a certain degree.Thus, it can be ensured that any bad shadow will not be generated to the service life of compressor when compressor start
It rings.
Further, which can be any value of the range between 3~7A.Specifically, the setup parameter
It such as can be 3A, 4A, 5A, 6A or 7A.If the setup parameter is too small (being, for example, less than 3A), the maximum starting current mistake of compressor
It is larger to the harm of compressor in the demagnetization current close to compressor, the service life of compressor may be will affect.If the setting
Parameter is excessive (being greater than 7A), and the size of the maximum starting current of compressor will receive biggish limitation, may cause compression
Machine is unable to reach optimum start-up electric current and step-out failure occur with making high frequent, or even can not normally start.
Further, the demagnetization current of compressor can be any current value of the range between 19~25A.Specifically,
The setup parameter for example can be 19A, 20A, 21A, 22A, 23A, 24A or 25A.The compressor of different size, demagnetization current
Also different.Compressor demagnetization current range listed by the present invention is the demagnetization electricity of the compressor of common air conditioner regular size
Flow range.
Fig. 2 is the schematic flow chart of control method accord to a specific embodiment of that present invention.Referring to fig. 2, some
In embodiment, control method of the invention may include:
Step S101 receives the starting-up signal for indicating unlatching air conditioner；
Step S102, with starting current I0Start the compressor of air conditioner；
Step S103, judges whether compressor step-out failure occurs；If so, going to step S105；If it is not, then going to step
S104；
Step S104, control compressor operate normally, and the number of stoppages that step-out failure occurs in compressor is reset；
Step S105, the number of stoppages N that step-out failure occurs in compressor adds one, and controls compressor shutdown；
Step S106, judges whether number of stoppages N is greater than the default highest number of stoppages；If so, going to step S110；If
It is no, then go to step S107；
Step S107, judges whether the duration of compressor shutdown reaches preset duration；If so, going to step S108；If it is not,
Then continue to judge whether the duration of compressor shutdown reaches preset duration；
Step S108, reset itself, the starting current I of compressorN=I0+N×m；
Step S109 judges starting current INWhether predetermined current threshold is more than or equal to；If so, going to step S110；If
It is no, then S103 is gone to step, continues to judge whether compressor step-out failure occurs；
Step S110 issues the prompt information for occurring step-out failure for indicating compressor and needing repairing.
In further embodiments, the sequencing of some of steps in above-mentioned steps can be interchanged, as long as not shadow
Ring the operation of global procedures.
The present invention also provides a kind of air conditioner, which carries out according to control method described in any of the above-described embodiment
Operation.After receiving starting-up signal as a result, air conditioner booting, compressor starts for the first time.Each compressor is because there is step-out failure
And when being again started up after shutting down, starting current of the starting current of compressor than the last starting before this starting is big.
That is, can start compressor first after air conditioner booting with lesser starting current, if meeting the requirements, compressor can be normal
Operation；If being unsatisfactory for requiring, compressor will appear step-out failure, hereafter, be gradually increased the starting of compressor once again
Electric current.On the one hand, since the starting current of compressor gradually increases, the probability that compressor normally starts is gradually
Rise, the step-out failure rate of compressor is reduced, instead of traditional compressor heating tape and compressor preheating process；It is another
Aspect, since the starting current of compressor gradually increases, the amplitude increased every time will not be very big, i.e. compressor opens
Streaming current will not suddenly increase to very greatly, will not influence the service life of compressor.
Further, air conditioner can also include controller, number of stoppages flag bit is preset in controller, for recording
There is the number of stoppages of step-out failure from after air conditioner booting in compressor.
So far, although those skilled in the art will appreciate that present invention has been shown and described in detail herein multiple shows
Example property embodiment still without departing from the spirit and scope of the present invention, still can according to the present disclosure directly
Determine or deduce out many other variations or modifications consistent with the principles of the invention.Therefore, the scope of the present invention is understood that and recognizes
It is set to and covers all such other variations or modifications.
Claims (10)
1. a kind of control method of air conditioner characterized by comprising
The starting-up signal for being used for indicating to open the air conditioner is received, the compressor of the air conditioner is started；
When step-out failure occurs in the compressor, the compressor shutdown is controlled, and records the compressor from the air-conditioning
There is the number of stoppages of step-out failure after device booting；
If the number of stoppages is less than or equal to the default highest number of stoppages and the duration of the compressor shutdown reaches preset duration
When restart the compressor, the starting current of this starting of the compressor starting current of one-shot thereon greatly；
And
Detect whether the compressor step-out failure occurs again, repeatedly, until the number of stoppages is higher than described preset
When the highest number of stoppages or the starting current of compressor restarting are more than or equal to predetermined current threshold, issue and be used for table
Show the prompt information that the compressor step-out failure occurs and needs repairing.
2. control method according to claim 1, which is characterized in that
The compressor, which is recorded, by the number of stoppages flag bit of the air conditioner occurs step-out event from after air conditioner booting
The number of stoppages of barrier；
When starting the compressor for the first time after air conditioner booting, the numerical value of the number of stoppages flag bit is zero；Often
When step-out failure occurs in the secondary compressor, the numerical value of the number of stoppages flag bit adds one；It is normally opened in the compressor
After dynamic, the numerical value of the number of stoppages flag bit is reset.
3. control method according to claim 1, which is characterized in that
The difference of the starting current that the compressor restarts every time and the starting current of last time starting is all the same.
4. control method according to claim 3, which is characterized in that
The starting current of the compressor start is calculated by following formula: IN=I0+ N × m, wherein
INIndicate that the compressor starting current being again started up after n times step-out failure, I occurs from air conditioner booting0It indicates
The starting current of compressor starting for the first time, N indicate that the compressor is opened from the air conditioner after the air conditioner booting
Occurs the number of stoppages of step-out failure after machine, m is the parameter that value is positive number.
5. control method according to claim 4, which is characterized in that
I0Value be any current value of the range between 3~4A；And/or
The value of m is any value of the range between 0.5~1.5A.
6. control method according to claim 1, which is characterized in that
The predetermined current threshold is the demagnetization current of the compressor and the difference of setup parameter.
7. control method according to claim 6, which is characterized in that
The setup parameter is any value of the range between 3~7A；And/or
The demagnetization current of the compressor is any current value of the range between 19~25A.
8. control method according to claim 1, which is characterized in that
The default highest number of stoppages is any value of the range between 3~5.
9. control method according to claim 1, which is characterized in that
The preset duration is any duration value of the range between 0.5~1.5min.
10. a kind of air conditioner, which is characterized in that the air conditioner according to the described in any item control methods of claim 1-9 into
Row operation.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112415931A (en) * | 2020-11-23 | 2021-02-26 | 四川虹美智能科技有限公司 | Compressor starting control method and device |
| CN114376411A (en) * | 2022-02-15 | 2022-04-22 | 佛山市顺德区美的饮水机制造有限公司 | Control method and device for water treatment device, storage medium and water treatment device |
| CN114543330A (en) * | 2022-01-27 | 2022-05-27 | 青岛海尔空调器有限总公司 | Preheating control method and device for compressor of air conditioner and air conditioner |
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| CN114543330A (en) * | 2022-01-27 | 2022-05-27 | 青岛海尔空调器有限总公司 | Preheating control method and device for compressor of air conditioner and air conditioner |
| CN114376411A (en) * | 2022-02-15 | 2022-04-22 | 佛山市顺德区美的饮水机制造有限公司 | Control method and device for water treatment device, storage medium and water treatment device |
| CN114376411B (en) * | 2022-02-15 | 2024-01-12 | 佛山市顺德区美的饮水机制造有限公司 | Control method and device for water treatment device, storage medium and water treatment device |
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Application publication date: 20190719 |