CN107606741A - The dirty stifled detection control method of air-conditioner outdoor unit - Google Patents
The dirty stifled detection control method of air-conditioner outdoor unit Download PDFInfo
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- CN107606741A CN107606741A CN201710901653.0A CN201710901653A CN107606741A CN 107606741 A CN107606741 A CN 107606741A CN 201710901653 A CN201710901653 A CN 201710901653A CN 107606741 A CN107606741 A CN 107606741A
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Abstract
The invention belongs to air conditioner technical field, and in particular to a kind of dirty stifled detection control method of air-conditioner outdoor unit.In order to which whether accurate judgement air-conditioner outdoor unit dirty stifled phenomenon occurs to clean in time, method of the invention comprises the following steps：In the case of air conditioner refrigerating operaton, condensator outlet temperature is obtained；Calculate the difference between the condensator outlet temperature and standard condenser outlet temperature；When the difference is more than given threshold, it is dirty stifled to determine that the air-conditioner outdoor unit is present；Wherein, the standard condenser outlet temperature is the condensator outlet temperature measured in the case of air conditioner refrigerating operaton and outdoor unit are not present dirty stifled.By the method for the present invention, air conditioner can voluntarily judge that outdoor unit whether there is dirty stifled phenomenon in the process of running, and it is dirty stifled to notice whether outdoor unit occurs the moment without user.
Description
Technical field
The invention belongs to air conditioner technical field, and in particular to a kind of dirty stifled detection control method of air-conditioner outdoor unit.
Background technology
The outdoor unit of air conditioner is more severe than the environment residing for indoor set, therefore is more prone to dirty stifled (such as dust deposit
On fin, it is first-class that the similar floating object such as polybag, leaf is attracted to condenser).Once outdoor unit generation is dirty stifled, can cause
Air conditioner effect is deteriorated, efficiency reduces, or even can cause the damage of air conditioner, influences the stability and comfortableness of air conditioner, room
The outer dirty stifled degree of machine is more serious, and the influence degree of stability and comfortableness to air conditioner is also bigger.
Few people understand the dirty stifled degree that the moment pays attention to outdoor unit to air conditioner in use, are generally all using timing
The mode of prompting reminds user to clean air-conditioner outdoor unit.This mode often leads to user can not accurate judgement sky
Adjust device to whether there is dirty stifled phenomenon, thus outdoor unit can not be cleaned in time, cause air conditioner dirty stifled phenomenon occur, from
And influence the using effect of air conditioner.
Therefore, this area needs a kind of new method to solve the above problems.
The content of the invention
In order to solve above mentioned problem of the prior art, i.e., in order to which whether accurate judgement air-conditioner outdoor unit dirty block up now occurs
As to clean in time, the invention provides a kind of dirty stifled detection control method of air-conditioner outdoor unit, this method includes following step
Suddenly：In the case of air conditioner refrigerating operaton, condensator outlet temperature is obtained；It is cold to calculate the condensator outlet temperature and standard
Difference between condenser outlet temperature；When the difference is more than given threshold, it is dirty stifled to determine that the air-conditioner outdoor unit is present.
In the preferred embodiment of the above method, " the condensator outlet temperature and standard condenser outlet temperature are calculated
The step of difference between degree ", specifically includes：Obtain the operational factor of the air conditioner；Joined according to the operation of the air conditioner
Number, obtain the standard condenser outlet temperature matched with the operational factor；Calculate the condensator outlet temperature and the mark
Difference between quasi- condensator outlet temperature.
In the preferred embodiment of the above method, the operational factor of the air conditioner includes EAT, compressor frequency
It is one or more in rate and outdoor environment temperature.
In the preferred embodiment of the above method, " according to the operational factor of the air conditioner, obtain and join with the operation
The step of standard condenser outlet temperature of number matching ", specifically includes：According to the operational factor of the air conditioner, from prestoring
Operational factor and standard condenser outlet temperature mapping table in inquire about the standard condenser outlet temperature.
In the preferred embodiment of the above method, methods described also includes：Once institute is calculated every the first preset time
State difference；When the situation that the difference is more than the given threshold continuously occurs n times in the second preset time, described in control
Air-conditioner outdoor unit is shut down, and the blower fan of the air-conditioner outdoor unit is inverted the 3rd preset time.
In the preferred embodiment of the above method, methods described also includes：Detect the reversion number of the blower fan；Work as institute
When the reversion number for stating blower fan is m, the dirty stifled alarm signal of air-conditioner outdoor unit is exported.
In the preferred embodiment of the above method, the n is 3；And/or the m is 3.
In the preferred embodiment of the above method, first preset time is 1 hour；And/or described second
Preset time is 8 hours；And/or the 3rd preset time is 3 minutes.
By the method for the present invention, air conditioner can voluntarily judge outdoor unit with the presence or absence of dirty stifled existing in the process of running
As it is dirty stifled to notice whether outdoor unit occurs the moment without user.Further, since whether user will not check outdoor unit constantly
Occur dirty stifled, the situation that outdoor unit the dirty stifled some time occurs and is not also found often occur, and pass through the method for the present invention
It is dirty stifled can to find that air-conditioner outdoor unit occurs in time, and then takes suitable strategy, to ensure the stability of air conditioner and relax
Adaptive.In a preferred embodiment, it is dirty stifled can not only to judge whether air-conditioner outdoor unit occurs to method of the invention, also
The dirty stifled degree of air-conditioner outdoor unit can be determined whether according to corresponding Rule of judgment, and takes corresponding implementation strategy,
To ensure the stability and comfortableness of air conditioner in use.
Brief description of the drawings
Fig. 1 is the key step flow chart of the dirty stifled detection control method of the air-conditioner outdoor unit of the present invention；
Fig. 2 is a kind of detail flowchart of embodiment of the dirty stifled detection control method of the air-conditioner outdoor unit of the present invention.
Embodiment
The preferred embodiment of the present invention described with reference to the accompanying drawings.It will be apparent to a skilled person that this
A little embodiments are used only for explaining the technical principle of the present invention, it is not intended that limit the scope of the invention.For example, although
In the application according to particular order describe the present invention method each step, but these be not sequentially it is restricted,
On the premise of without departing from the general principle of the present invention, those skilled in the art can perform the step in a different order
Suddenly.
As shown in figure 1, the dirty stifled detection control method of the air-conditioner outdoor unit of the present invention comprises the following steps：S110, in sky
In the case of adjusting device refrigerating operaton, condensator outlet temperature is obtained；S120, calculating condensator outlet temperature and standard condenser go out
Difference between mouth temperature；S130, when the difference is more than given threshold, it is dirty stifled to determine that air-conditioner outdoor unit is present.Wherein, mark
Quasi- condensator outlet temperature is the condensator outlet measured in the case of air conditioner refrigerating operaton and outdoor unit are not present dirty stifled
Temperature.
In above-mentioned steps S110-S130, if air-conditioner outdoor unit is not present dirty stifled, the temperature of condenser air outlet
Should be identical with standard condenser outlet temperature.When air-conditioner outdoor unit occurs dirty stifled, the heat exchange of condenser can be influenceed,
I.e. gaseous coolant outwardly liberated heat reduce so that condensator outlet temperature raise, namely condensator outlet temperature with
Difference between standard condenser outlet temperature can be increasing, when the difference is more than given threshold, then can determine sky
Device outdoor unit is adjusted to exist dirty stifled.The given threshold can be entered by those skilled in the art according to air conditioner and its practical application scene
Row design, it can also be obtained by this area machine technical staff by testing.
By the method for the present invention, air conditioner can voluntarily judge outdoor unit with the presence or absence of dirty stifled existing in the process of running
As it is dirty stifled to notice whether outdoor unit occurs the moment without user.Further, since whether user will not check outdoor unit constantly
Occur dirty stifled, the situation that outdoor unit the dirty stifled some time occurs and is not also found often occur, and pass through the above-mentioned of the present invention
It is dirty stifled that method can find that outdoor unit occurs in time, and then takes suitable strategy, to ensure the stability of air conditioner and comfortable
Property.
One embodiment of the present invention is described in detail with reference to Fig. 2.
Fig. 2 is a kind of detail flowchart of embodiment of the dirty stifled detection control method of the air-conditioner outdoor unit of the present invention.
As shown in Fig. 2 step S210 is first carried out, in the case of air conditioner refrigerating operaton, condensator outlet temperature T is obtainedCO, air intake
Temperature Tai, compressor frequency P and outdoor environment temperature Tao；Subsequently into step S220, obtain standard condenser outlet temperature
TCO 1；Enter back into step S230, calculate a difference DELTA T, wherein Δ T=T every 1 hour (the first preset time)CO- TCO 1。
In this embodiment, in order to more accurately judge that air-conditioner outdoor unit blocks up with the presence or absence of dirty, standard condenser outlet
Temperature includes the mark that air conditioner measures under different operational factors (including EAT, compressor frequency and outdoor environment temperature)
Quasi- condensator outlet temperature.Then the mapping table of operational factor and standard condenser outlet temperature is established, and the mapping table is pre-
It is first stored in air conditioner.So, every time when obtaining air-conditioner condenser outlet temperature, due to obtaining into wind-warm syndrome simultaneously
Spend Tai, compressor frequency P and outdoor environment temperature TaoEtc. operational factor, therefore can be according to the operational factor of acquisition, from pre-
Query criteria condensator outlet temperature in the mapping table first stored, then determine both difference DELTA T.By under equal conditions
(the operational factor of air conditioner when obtaining current condensator outlet temperature, with obtaining air-conditioning during standard condenser outlet temperature
The operational factor of device is identical) difference of more current condensator outlet temperature and standard condenser outlet temperature can be more accurately
Judge that air-conditioner outdoor unit whether there is dirty stifled phenomenon.
Step S240, judge whether difference DELTA T is more than given threshold a.If not, explanation air-conditioner outdoor unit does not have dirty block up
Phenomenon；If it is, explanation air-conditioner outdoor unit is dirty stifled, then into step S250, judge Δ T ＞ a situation at 8 hours (second
Preset time) in whether continuously appearance 3 (n) it is secondary.If it is not, then the dirty stifled situation of explanation air-conditioner outdoor unit is not serious, can hold
It is continuous to be detected；If it is, the dirty stifled situation of explanation air-conditioner outdoor unit is more serious, it is now empty into step S260, control
Adjust device outdoor unit to shut down, and the blower fan of air-conditioner outdoor unit is inverted 3 minutes (the 3rd preset time).Inverted by blower fan to sky
Adjust device outdoor unit to be cleaned, for example the outdoor units that blow off such as the leaf, polybag and dust of outdoor unit will be become scattered about, so that room
Outer machine keeps cleaning.
After step S260, step S270, the reversion number of detection blower fan are performed, and judges to invert whether number reaches
3 (m) is secondary.If not, explanation has been realized in the cleaning to outdoor unit by blower fan reversion.If it is, explanation outdoor unit is dirty
Stifled phenomenon is serious, and blower fan inverts the cleaning that can not have realized outdoor unit, now clears up air-conditioning into step S280, prompting user
Device outdoor unit.
By above-mentioned steps S210-S280, air conditioner not only can voluntarily judge that outdoor unit whether there is dirty stifled phenomenon, and
It can voluntarily judge that the dirty stifled degree of air-conditioner outdoor unit is tactful to select suitably to clean, such as in step S250, can sentence
Break and outdoor unit and exist heavier dirty stifled, now then control the blower fan of air-conditioner outdoor unit to invert to clear up air device.And in step
In rapid S270, it can be determined that go out outdoor unit and blocked up in the presence of seriously dirty, now then remind user to clear up air-conditioner outdoor unit.The present invention's
It is dirty stifled that method can not only judge whether air-conditioner outdoor unit occurs, additionally it is possible to determines whether sky according to corresponding Rule of judgment
The dirty stifled degree of gas device outdoor unit, and use corresponding implementation strategy, with ensure the stability of air conditioner in use and
Comfortableness.
It should be noted that in the above-described embodiments, the first preset time, the second preset time and the 3rd preset time are equal
For exemplary illustration, those skilled in the art can select suitable preset time according to the practical application scene of air conditioner.And
And it is above-mentioned in continuous occurrence number n (judging whether Δ T ＞ a situation continuously occurred 3 times in 8 hours) be set as 3 times,
And it is above-mentioned in blower fan reversion number m be set as 3 times be exemplary illustration, those skilled in the art can be according to air conditioner
Practical application scene select suitable n and m value.These do not affect protection scope of the present invention.
So far, combined preferred embodiment shown in the drawings describes technical scheme, still, this area
Technical staff is it is easily understood that protection scope of the present invention is expressly not limited to these embodiments.Without departing from this
On the premise of the principle of invention, those skilled in the art can make equivalent change or replacement to correlation technique feature, these
Technical scheme after changing or replacing it is fallen within protection scope of the present invention.
Claims (8)
1. a kind of dirty stifled detection control method of air-conditioner outdoor unit, it is characterised in that this method comprises the following steps：
In the case of air conditioner refrigerating operaton, condensator outlet temperature is obtained；
Calculate the difference between the condensator outlet temperature and standard condenser outlet temperature；
When the difference is more than given threshold, it is dirty stifled to determine that the air-conditioner outdoor unit is present.
2. according to the method for claim 1, it is characterised in that " calculate the condensator outlet temperature and standard condenser
The step of difference between outlet temperature ", specifically includes：
Obtain the operational factor of the air conditioner；
According to the operational factor of the air conditioner, the standard condenser outlet temperature matched with the operational factor is obtained；
Calculate the difference between the condensator outlet temperature and the standard condenser outlet temperature.
3. according to the method for claim 2, it is characterised in that the operational factor of the air conditioner includes EAT, pressure
It is one or more in contracting unit frequency and outdoor environment temperature.
4. according to the method for claim 2, it is characterised in that " according to the operational factor of the air conditioner, obtain with it is described
The step of standard condenser outlet temperature of operational factor matching ", specifically includes：According to the operational factor of the air conditioner, from pre-
The operational factor first stored in the mapping table of standard condenser outlet temperature with inquiring about the standard condenser outlet temperature.
5. according to the method for claim 2, it is characterised in that methods described also includes：
The once difference is calculated every the first preset time；
When the situation that the difference is more than the given threshold continuously occurs n times in the second preset time, the sky is controlled
Adjust device outdoor unit to shut down, and the blower fan of the air-conditioner outdoor unit is inverted the 3rd preset time.
6. according to the method for claim 5, it is characterised in that methods described also includes：
Detect the reversion number of the blower fan；
When the reversion number of the blower fan is m, the dirty stifled alarm signal of air-conditioner outdoor unit is exported.
7. according to the method for claim 6, it is characterised in that the n is 3；And/or the m is 3.
8. the method according to any one of claim 5 to 7, it is characterised in that first preset time is 1 hour；
And/or second preset time is 8 hours；And/or the 3rd preset time is 3 minutes.
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