CN105091233B - The frosting detection method and device of air-conditioner outdoor unit - Google Patents
The frosting detection method and device of air-conditioner outdoor unit Download PDFInfo
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- CN105091233B CN105091233B CN201510491315.5A CN201510491315A CN105091233B CN 105091233 B CN105091233 B CN 105091233B CN 201510491315 A CN201510491315 A CN 201510491315A CN 105091233 B CN105091233 B CN 105091233B
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- air
- atmospheric pressure
- pressure value
- outdoor unit
- conditioner outdoor
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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
-
- 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
- F24F11/41—Defrosting; Preventing freezing
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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
- F24F2110/00—Control inputs relating to air properties
- F24F2110/40—Pressure, e.g. wind pressure
Abstract
The invention discloses a kind of frosting detection method and device of air-conditioner outdoor unit.Between condenser and wind turbine inside air-conditioner outdoor unit, baroceptor is set, wherein, this method includes：Read the atmospheric pressure value for the air inlet that baroceptor detects；Atmospheric pressure value is compared with pre-set threshold value, determine air-conditioner outdoor unit whether frosting；When atmospheric pressure value is less than threshold value, air-conditioner outdoor unit frosting is determined.The present invention solve due to can not accurate judgement air-conditioner outdoor unit whether frosting, the technical issues of caused heat-exchange capacity is poor, efficiency is low.
Description
Technical field
The present invention relates to field of air conditioning, in particular to a kind of frosting detection method and device of air-conditioner outdoor unit.
Background technology
Air-conditioner outdoor unit frosting is that many domestic air conditionings all can the problem.When outdoor frosting, can block between fin
Passage, increase the resistance of air circulation, decline so as to cause hot and cold exchange capacity, Energy Efficiency Ratio reduces.If frosting is serious
Words, it is possible to outdoor unit cisco unity malfunction can be caused.It uses, gives since outdoor unit cisco unity malfunction can directly influence user
User causes certain economic loss.
At present, detection of air-conditioning outdoor unit whether the main stream approach of frosting, mainly by detect indoor and outdoor surroundings temperature, pipe
The parameters such as temperature, and pass through parameter and judge whether frosting.Because environmental factor is complicated, operation of air conditioner system model is various, can
It can there are erroneous judgement situations.
For it is above-mentioned the problem of, currently no effective solution has been proposed.
The content of the invention
An embodiment of the present invention provides a kind of frosting detection method and device of air-conditioner outdoor unit, at least to solve due to nothing
Method accurate judgement air-conditioner outdoor unit whether frosting, the technical issues of caused heat-exchange capacity is poor, efficiency is low.
One side according to embodiments of the present invention provides a kind of frosting detection method of air-conditioner outdoor unit, in air-conditioning
Between condenser and wind turbine inside outdoor unit, baroceptor is set, including：Read the air inlet that baroceptor detects
Atmospheric pressure value；Atmospheric pressure value is compared with pre-set threshold value, determine air-conditioner outdoor unit whether frosting；When atmospheric pressure value is less than
During threshold value, air-conditioner outdoor unit frosting is determined.
Further, the atmospheric pressure value for the air inlet that baroceptor detects is read, including：Obtain pre-set reading
Frequency；The atmospheric pressure value detected according to reading frequency reading baroceptor.
Further, after the atmospheric pressure value for the air inlet that baroceptor detects is read, method further includes：By first
The secondary initial gas pressure value got is arranged to acquiescence atmospheric pressure value, wherein, initial gas pressure value is baroceptor in air-conditioner outdoor unit
The atmospheric pressure value detected during startup；According to acquiescence atmospheric pressure value and pre-set air pressure design factor, threshold value is calculated.
Further, after frosting inside definite air-conditioner outdoor unit, further include：The operating mode of air-conditioner outdoor unit is cut
It is changed to defrosting mode.
Further, after the operating mode of air-conditioner outdoor unit is switched to defrosting mode, method further includes：By air pressure
Value is compared with pre-set threshold value, when atmospheric pressure value is greater than or equal to threshold value, closes defrosting mode.
Further, before the atmospheric pressure value for the air inlet that baroceptor detects is read, method further includes：Detection is empty
Adjust the operating mode of outdoor unit；In the case where detecting operating mode for heating mode, perform and start baroceptor detection
The atmospheric pressure value of air inlet.
Another aspect according to embodiments of the present invention additionally provides a kind of frosting detection device of air-conditioner outdoor unit, in sky
Between adjusting the condenser and wind turbine inside outdoor unit, baroceptor is set, including：Read module, for reading air pressure sensing
The atmospheric pressure value for the air inlet that device detects；Processing module for atmospheric pressure value to be compared with pre-set threshold value, determines sky
Adjust outdoor unit whether frosting；Determining module, for when atmospheric pressure value is less than threshold value, determining air-conditioner outdoor unit frosting.
Further, read module includes：Sub-acquisition module, for obtaining pre-set reading frequency；Son reads mould
Block, for the atmospheric pressure value detected according to reading frequency reading baroceptor.
Further, device further includes：Setup module, for the initial gas pressure got for the first time value to be arranged to give tacit consent to
Atmospheric pressure value, wherein, initial gas pressure value is the atmospheric pressure value that baroceptor is detected when air-conditioner outdoor unit starts；Computing module,
For according to acquiescence atmospheric pressure value and pre-set air pressure design factor, threshold value to be calculated.
Further, device further includes：First handover module, for the operating mode of air-conditioner outdoor unit to be switched to defrosting
Pattern.
Further, device further includes：Second handover module, for atmospheric pressure value and pre-set threshold value to be compared
It is right, when atmospheric pressure value is greater than or equal to threshold value, close defrosting mode.
Further, device further includes：Detection module, for detecting the operating mode of air-conditioner outdoor unit；Starting module is used
In in the case where detecting operating mode for heating mode, the atmospheric pressure value for starting baroceptor detection air inlet is performed.
In embodiments of the present invention, using between the condenser and wind turbine inside air-conditioner outdoor unit, air pressure sensing is set
The mode of device, the atmospheric pressure value of the air inlet detected by reading baroceptor；By atmospheric pressure value and pre-set threshold value into
Row compare, determine air-conditioner outdoor unit whether frosting；When atmospheric pressure value is less than threshold value, the side of air-conditioner outdoor unit frosting is determined
Method has achieved the purpose that automatically to defrost to air-conditioner outdoor unit, it is achieved thereby that accurate judgement air-conditioner outdoor unit whether frosting
Technique effect, and then solve due to can not accurate judgement air-conditioner outdoor unit whether frosting, caused heat-exchange capacity is poor, energy
Imitate the technical issues of low.
Description of the drawings
Attached drawing described herein is used for providing a further understanding of the present invention, forms the part of the application, this hair
Bright schematic description and description does not constitute improper limitations of the present invention for explaining the present invention.In the accompanying drawings：
A kind of flow diagram of the frosting detection method of air-conditioner outdoor unit according to embodiments of the present invention Fig. 1；
Fig. 2 is a kind of flow signal of the frosting detection method of optional air-conditioner outdoor unit according to embodiments of the present invention
Figure；
Fig. 3 is the logical schematic of the frosting detection method of air-conditioner outdoor unit according to embodiments of the present invention；
Fig. 4 is a kind of structure diagram of the frosting detection device of air-conditioner outdoor unit according to embodiments of the present invention；
Fig. 5 is a kind of structural representation of the frosting detection device of optional air-conditioner outdoor unit according to embodiments of the present invention
Figure；
Fig. 6 is a kind of structural representation of the frosting detection device of optional air-conditioner outdoor unit according to embodiments of the present invention
Figure；
Fig. 7 is a kind of structural representation of the frosting detection device of optional air-conditioner outdoor unit according to embodiments of the present invention
Figure；And
Fig. 8 is a kind of structural representation of the frosting detection device of optional air-conditioner outdoor unit according to embodiments of the present invention
Figure.
Specific embodiment
In order to which those skilled in the art is made to more fully understand the present invention program, below in conjunction in the embodiment of the present invention
The technical solution in the embodiment of the present invention is clearly and completely described in attached drawing, it is clear that described embodiment is only
The embodiment of a part of the invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill people
Member's all other embodiments obtained without making creative work should all belong to the model that the present invention protects
It encloses.
It should be noted that term " first " in description and claims of this specification and above-mentioned attached drawing, "
Two " etc. be the object for distinguishing similar, without being used to describe specific order or precedence.It should be appreciated that it so uses
Data can exchange in the appropriate case, so as to the embodiment of the present invention described herein can with except illustrating herein or
Order beyond those of description is implemented.In addition, term " comprising " and " having " and their any deformation, it is intended that cover
Cover it is non-exclusive include, be not necessarily limited to for example, containing the process of series of steps or unit, method, system, product or equipment
Those steps or unit clearly listed, but may include not list clearly or for these processes, method, product
Or the intrinsic other steps of equipment or unit.
According to embodiments of the present invention, provide a kind of frosting detection method embodiment of air-conditioner outdoor unit, it is necessary to explanation
It is that step shown in the flowchart of the accompanying drawings can perform in the computer system of such as a group of computer-executable instructions,
Also, although logical order is shown in flow charts, in some cases, it can be performed with the order being different from herein
Shown or described step.
Fig. 1 is the structure diagram of air-conditioner outdoor unit, as shown in Figure 1, can the condenser inside air-conditioner outdoor unit with
Between wind turbine, baroceptor is set.
Fig. 2 is the flow diagram of the frosting detection method of air-conditioner outdoor unit according to embodiments of the present invention, such as Fig. 2 institutes
Show, this method comprises the following steps：
Step S102 reads the atmospheric pressure value for the air inlet that baroceptor detects.
Specifically, by step S102 directly from the air pressure transmission being arranged between air-conditioner outdoor unit internal condensation device and wind turbine
Atmospheric pressure value is read in sensor.
Atmospheric pressure value is compared step S104 with pre-set threshold value, determine air-conditioner outdoor unit whether frosting.
Specifically, when outdoor machine of air-conditioner condenser causes condenser surface frosting because temperature is subcooled, will cause to transport in wind turbine
In the case that row rotating speed is constant, reduce into the air capacity inside air-conditioner outdoor unit, the air pressure inside air-conditioner outdoor unit at this time will
Therefore reduce, then, the atmospheric pressure value that the baroceptor being arranged between air-conditioner outdoor unit internal condensation device and wind turbine detects
Also reduce therewith.So the big of the atmospheric pressure value inside air-conditioner outdoor unit around air inlet can be directly detected by baroceptor
Small or attenuation degree, to differentiate outdoor unit frosting degree.Therefore, obtained atmospheric pressure value will be read with setting in advance by step S104
The threshold value put is compared, so as to judge air-conditioner outdoor unit whether frosting.
Step S106 when atmospheric pressure value is less than threshold value, determines air-conditioner outdoor unit frosting.
Specifically, judged by step S106, when the atmospheric pressure value inside air-conditioner outdoor unit is less than default threshold value,
It can so determine air-conditioner outdoor unit frosting.
By above-mentioned steps S102 to step S106, by the atmospheric pressure value inside air-conditioner outdoor unit and pre-set threshold value into
Whether row judges, determine inside air-conditioner outdoor unit frosting.So as to realize accurate judgement air-conditioner outdoor unit whether frosting
Technique effect, achieved the purpose that automatically to defrost to air-conditioner outdoor unit, solve due to can not accurate judgement air conditioning chamber
Outer machine whether frosting, the technical issues of caused heat-exchange capacity is poor, efficiency is low.
Optionally, in the above embodiments of the present application, because of the operation principle of baroceptor：I.e. Sensor core device is thin
The pressure cell of film bridge architecture, when atmospheric pressure increases, film is led indirectly because air pressure causes elastic film stroke bigger
The variation of gesture position is sent a telegraph, reflects the size of air pressure by gathering potential position variation degree.It so as shown in Figure 1, can be by it
It is installed on the inside of condenser for outdoor unit of air conditioner, the pressure cell of baroceptor detection is towards direction windward.Under normal conditions, by
There is not filtering dust filtering device at condenser air inlet, and steam is more serious, so the circuit board PCB by sensor
Components such as (Printed Circuit Board) are sealed processing, exposing sensor pressure cell, so as to improve air pressure transmission
The reliability of sensor.
Optionally, in the above embodiments of the present application, baroceptor can directly be caught in condenser fin in assembling
In, it to facilitate installation exercise, also, reduces and sets up quantity, reduce production cost.
Optionally, in the atmospheric pressure value for reading the air inlet that the baroceptor detects in step S102, can include：
Step S21 obtains pre-set reading frequency.
Step S23, the atmospheric pressure value detected according to reading frequency reading baroceptor.
Specifically, step S21 to step S23 is by with pre-set reading frequency, to the air pressure in baroceptor
Value is read out, so that it is guaranteed that the validity of the atmospheric pressure value read.Certainly, because the height of outdoor temperature, directly affects
The frosting probability and frosting velocity of air-conditioner outdoor unit.Therefore, reading frequency can change according to outdoor temperature, i.e., outdoor
Temperature value is lower, then reading frequency is higher.
Optionally, after the atmospheric pressure value for reading the air inlet that baroceptor detects in step S102, method further includes：
The initial gas pressure value got for the first time is arranged to acquiescence atmospheric pressure value by step S31, wherein, initial gas pressure value is
The atmospheric pressure value that baroceptor is detected when air-conditioner outdoor unit starts.
According to acquiescence atmospheric pressure value and pre-set air pressure design factor, threshold value is calculated in step S33.
Specifically, due to height above sea level, meteorological condition etc., the numerical value of atmospheric pressure can be directly affected, therefore, in order to keep away
Exempt to individually adjust acquiescence atmospheric pressure value, raising accuracy of judgement degree because of sale region, by step S31 to step S33, in each air-conditioning
After startup, atmospheric pressure value that first time is got from baroceptor is arranged to acquiescence atmospheric pressure value, using give tacit consent to atmospheric pressure value with
The threshold value suitable for air-conditioning location is calculated in air pressure design factor.
Optionally, in the above embodiments of the present application, determined in step S106 inside air-conditioner outdoor unit after frosting, method is also
Including：
The operating mode of air-conditioner outdoor unit is switched to defrosting mode by step S107.
Specifically, by step S107, determining inside air-conditioner outdoor unit after frosting, by the Working mould of air-conditioner outdoor unit
Formula is switched to defrosting mode, so as to fulfill timely defrosting to air-conditioner outdoor unit, avoids the heat friendship caused by frosting
Change reduced capability, efficiency reduces.
Optionally, in the above embodiments of the present application, the operating mode of air-conditioner outdoor unit is switched to defrosting in step S107
After pattern, method further includes：
Atmospheric pressure value is compared step S108 with pre-set threshold value, when atmospheric pressure value is greater than or equal to threshold value, closes
Close defrosting mode.
Specifically, by step S108, after air-conditioner outdoor unit opens defrosting mode, continue by atmospheric pressure value and threshold value into
Row compares, and when atmospheric pressure value is greater than or equal to threshold value, then closes defrosting mode.
Optionally, in the above embodiments of the present application, the gas for the air inlet that baroceptor detects is read in step S102
Before pressure value, method further includes：
Step S11 detects the operating mode of air-conditioner outdoor unit.
Step S13 in the case where detecting operating mode for heating mode, is performed and is started baroceptor detection air inlet
The atmospheric pressure value of mouth.
Specifically, the operating mode of air-conditioner outdoor unit is judged by step S11 to step S13, when outside air conditioning chamber
The operating mode of machine just performs the atmospheric pressure value for starting baroceptor detection air inlet, to reduce sky in when being possible to frosting
Adjust the processing load of controller in unit.
Optionally, in the above embodiments of the present application, as shown in figure 3, being illustrated with reference to practical application.It is normally transported in air-conditioning
There is not frosting during row, outdoor unit evaporator can normally carry out air-flow exchange, and the air pressure that baroceptor detects is opposite
Stable numerical value, the air pressure detected defined at this time are XDefault value.When heating work in winter, outdoor environment temperature is colder, meeting
Happening for condenser surface frosting occurs, so as to cause air inlet windage increase.Generally, outdoor condenser surface frosting
More, condenser air pressure inside is smaller, the atmospheric pressure value X that baroceptor is detected in real timeInstantaneous valueIt is smaller.When the air pressure detected is low
When some threshold values, i.e. XInstantaneous value＜ XThreshold valuesWhen, then control instruction is sent, control air-conditioner outdoor unit enters defrosting mode.It is selected
Threshold values size, can be determined according to actual condenser surface frosting degree, but must assure that XThreshold values＜ XDefault value.Acquisition gas in real time
The cycle of pressure can be detected according to the cycle of 1s, 5s, 10s.
According to embodiments of the present invention, a kind of sky for the frosting detection method for being used to implement above-mentioned air-conditioner outdoor unit is additionally provided
The frosting detection device of outdoor unit is adjusted, between the condenser and wind turbine inside air-conditioner outdoor unit, baroceptor is set, is such as schemed
Shown in 4, which includes：Read module 22, processing module 24 and determining module 26.
Wherein, read module 22, for reading the atmospheric pressure value for the air inlet that baroceptor detects；Processing module 24,
For atmospheric pressure value to be compared with pre-set threshold value, determine air-conditioner outdoor unit whether frosting；Determining module 26, for working as
When atmospheric pressure value is less than threshold value, air-conditioner outdoor unit frosting is determined.
By above-mentioned read module 22, processing module 24 and determining module 26, by the atmospheric pressure value inside air-conditioner outdoor unit with
Whether pre-set threshold value judged, determine inside air-conditioner outdoor unit frosting.So as to realize accurate judgement sky
Adjust outdoor unit whether the technique effect of frosting, achieved the purpose that automatically to defrost to air-conditioner outdoor unit, solve due to nothing
Method accurate judgement air-conditioner outdoor unit whether frosting, the technical issues of caused heat-exchange capacity is poor, efficiency is low.
Optionally, in the above embodiments of the present application, read module 22 includes：Sub-acquisition module 221 and sub- read module
223。
Wherein, sub-acquisition module 221, for obtaining pre-set reading frequency；Sub- read module 223, for according to
Reading frequency reads the atmospheric pressure value that baroceptor detects.
Specifically, sub-acquisition module 221 and sub- read module 223 be by with pre-set reading frequency, to air pressure transmission
Atmospheric pressure value in sensor is read out, so that it is guaranteed that the validity of the atmospheric pressure value read.Certainly, because the height of outdoor temperature
It is low, directly affect the frosting probability and frosting velocity of air-conditioner outdoor unit.Therefore, reading frequency can be according to outdoor temperature
And change, i.e. outdoor temp angle value is lower, then reading frequency is higher.
Optionally, in the above embodiments of the present application, as shown in figure 5, device can also include：Setup module 231 and calculating
Module 233.
Wherein, setup module 231, for the initial gas pressure got for the first time value to be arranged to acquiescence atmospheric pressure value, wherein,
Initial gas pressure value is the atmospheric pressure value that baroceptor is detected when air-conditioner outdoor unit starts；Computing module 233, for according to silent
Recognize atmospheric pressure value and pre-set air pressure design factor, threshold value is calculated.
Specifically, due to height above sea level, meteorological condition etc., the numerical value of atmospheric pressure can be directly affected, therefore, in order to keep away
Exempt from because sale region individually adjusts acquiescence atmospheric pressure value, improves accuracy of judgement degree, by setup module 231 and computing module 233,
After each starting of air conditioner, the atmospheric pressure value that first time is got from baroceptor is arranged to acquiescence atmospheric pressure value, utilizes acquiescence
Atmospheric pressure value and air pressure design factor, are calculated the threshold value suitable for air-conditioning location.
Optionally, in the above embodiments of the present application, as shown in fig. 6, device further includes：First handover module 27.Wherein,
One handover module 27, for the operating mode of air-conditioner outdoor unit to be switched to defrosting mode.
Specifically, by the first handover module 27, determining inside air-conditioner outdoor unit after frosting, by air-conditioner outdoor unit
Operating mode is switched to defrosting mode, and so as to fulfill timely defrosting to air-conditioner outdoor unit, avoiding causes due to frosting
Heat-exchange capacity weaken, efficiency reduce.
Optionally, in the above embodiments of the present application, as shown in fig. 7, device further includes：Second handover module 28.Wherein,
Two handover modules 28 for atmospheric pressure value to be compared with pre-set threshold value, when atmospheric pressure value is greater than or equal to threshold value, close
Close defrosting mode.
Optionally, in the above embodiments of the present application, as shown in figure 8, device further includes：Detection module 211 and starting module
213。
Wherein, detection module 211, for detecting the operating mode of air-conditioner outdoor unit；Starting module 213, for detecting
In the case of being heating mode to operating mode, the atmospheric pressure value for starting baroceptor detection air inlet is performed.
Specifically, the operating mode of air-conditioner outdoor unit is judged by detection module 211 and starting module 213, when
The operating mode of air-conditioner outdoor unit just performs the atmospheric pressure value for starting baroceptor detection air inlet in when being possible to frosting,
To reduce the processing of controller in air-conditioner set load.
The embodiments of the present invention are for illustration only, do not represent the quality of embodiment.
In the above embodiment of the present invention, all emphasize particularly on different fields to the description of each embodiment, do not have in some embodiment
The part of detailed description may refer to the associated description of other embodiment.
In several embodiments provided herein, it should be understood that disclosed technology contents can pass through others
Mode is realized.Wherein, the apparatus embodiments described above are merely exemplary, such as the division of the unit, Ke Yiwei
A kind of division of logic function, can there is an other dividing mode in actual implementation, for example, multiple units or component can combine or
Person is desirably integrated into another system or some features can be ignored or does not perform.Another, shown or discussed is mutual
Between coupling, direct-coupling or communication connection can be INDIRECT COUPLING or communication link by some interfaces, unit or module
It connects, can be electrical or other forms.
The unit illustrated as separating component may or may not be physically separate, be shown as unit
The component shown may or may not be physical location, you can be located at a place or can also be distributed to multiple
On unit.Some or all of unit therein can be selected to realize the purpose of this embodiment scheme according to the actual needs.
In addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, it can also
That unit is individually physically present, can also two or more units integrate in a unit.Above-mentioned integrated list
The form that hardware had both may be employed in member is realized, can also be realized in the form of SFU software functional unit.
If the integrated unit is realized in the form of SFU software functional unit and is independent production marketing or use
When, it can be stored in a computer read/write memory medium.Based on such understanding, technical scheme is substantially
The part to contribute in other words to the prior art or all or part of the technical solution can be in the form of software products
It embodies, which is stored in a storage medium, is used including some instructions so that a computer
Equipment (can be personal computer, server or network equipment etc.) perform each embodiment the method for the present invention whole or
Part steps.And foregoing storage medium includes：USB flash disk, read-only memory (ROM, Read-Only Memory), arbitrary access are deposited
Reservoir (RAM, Random Access Memory), mobile hard disk, magnetic disc or CD etc. are various can to store program code
Medium.
The above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (10)
1. the frosting detection method of a kind of air-conditioner outdoor unit, which is characterized in that condenser and wind turbine inside air-conditioner outdoor unit
Between, baroceptor is set, wherein, the described method includes：
Read the atmospheric pressure value for the air inlet that the baroceptor detects；
The atmospheric pressure value is compared with pre-set threshold value, determine the air-conditioner outdoor unit whether frosting；
When the atmospheric pressure value is less than the threshold value, the air-conditioner outdoor unit frosting is determined；
Wherein, the threshold value is according to the atmospheric pressure value that baroceptor after each starting of air conditioner detects and air pressure design factor meter
Obtained value；
Wherein, the atmospheric pressure value for the air inlet that the baroceptor detects is read, including：
Obtain pre-set reading frequency；
The atmospheric pressure value detected according to the reading frequency reading baroceptor；
Wherein, the reading frequency is determined according to outdoor temperature.
2. according to the method described in claim 1, it is characterized in that, reading air inlet that the baroceptor detects
After atmospheric pressure value, the method further includes：
The initial gas pressure value got for the first time is arranged to acquiescence atmospheric pressure value, wherein, the initial gas pressure value is the air pressure
The atmospheric pressure value that sensor is detected when the air-conditioner outdoor unit starts；
According to the acquiescence atmospheric pressure value and pre-set air pressure design factor, the threshold value is calculated.
3. it according to the method described in claim 1, it is characterized in that, is determining inside the air-conditioner outdoor unit after frosting, also
Including：
The operating mode of the air-conditioner outdoor unit is switched to defrosting mode.
4. it according to the method described in claim 3, it is characterized in that, is removed the operating mode of the air-conditioner outdoor unit is switched to
After white pattern, the method further includes：
The atmospheric pressure value with pre-set threshold value is compared, when the atmospheric pressure value is greater than or equal to the threshold value, is closed
Close the defrosting mode.
5. method as claimed in any of claims 1 to 4, which is characterized in that reading the baroceptor inspection
Before the atmospheric pressure value of the air inlet measured, the method further includes：
Detect the operating mode of the air-conditioner outdoor unit；
In the case where detecting the operating mode for heating mode, perform and start the baroceptor detection air inlet
The atmospheric pressure value of mouth.
6. a kind of frosting detection device of air-conditioner outdoor unit, which is characterized in that condenser and wind turbine inside air-conditioner outdoor unit
Between, baroceptor is set, wherein, described device includes：
Read module, for reading the atmospheric pressure value for the air inlet that the baroceptor detects；
Whether processing module for the atmospheric pressure value to be compared with pre-set threshold value, determines the air-conditioner outdoor unit
Frosting；
Determining module, for when the atmospheric pressure value is less than the threshold value, determining the air-conditioner outdoor unit frosting；
Wherein, the threshold value is according to the atmospheric pressure value that baroceptor after each starting of air conditioner detects and air pressure design factor meter
Obtained value；
Wherein, the read module includes：
Sub-acquisition module, for obtaining pre-set reading frequency；
Sub- read module, for the atmospheric pressure value detected according to the reading frequency reading baroceptor；
Wherein, the reading frequency is determined according to outdoor temperature.
7. device according to claim 6, which is characterized in that described device further includes：
Setup module, for the initial gas pressure got for the first time value to be arranged to acquiescence atmospheric pressure value, wherein, the initial gas pressure
It is worth the atmospheric pressure value detected for the baroceptor when the air-conditioner outdoor unit starts；
Computing module, for according to the acquiescence atmospheric pressure value and pre-set air pressure design factor, the threshold value to be calculated.
8. device according to claim 6, which is characterized in that described device further includes：
First handover module, for the operating mode of the air-conditioner outdoor unit to be switched to defrosting mode.
9. device according to claim 8, which is characterized in that described device further includes：
Second handover module, for the atmospheric pressure value to be compared with pre-set threshold value, be more than when the atmospheric pressure value or
During equal to the threshold value, the defrosting mode is closed.
10. the device according to any one in claim 6 to 9, which is characterized in that described device further includes：
Detection module, for detecting the operating mode of the air-conditioner outdoor unit；
Starting module, in the case where detecting the operating mode for heating mode, performing and starting the air pressure sensing
Device detects the atmospheric pressure value of the air inlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510491315.5A CN105091233B (en) | 2015-08-11 | 2015-08-11 | The frosting detection method and device of air-conditioner outdoor unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510491315.5A CN105091233B (en) | 2015-08-11 | 2015-08-11 | The frosting detection method and device of air-conditioner outdoor unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105091233A CN105091233A (en) | 2015-11-25 |
| CN105091233B true CN105091233B (en) | 2018-06-01 |
Family
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| CN105674496B (en) * | 2016-02-02 | 2019-07-23 | 青岛海尔空调器有限总公司 | A kind of air-conditioner defrosting method |
| CN106949605A (en) * | 2017-04-10 | 2017-07-14 | 广东美的暖通设备有限公司 | Air-conditioner, outdoor unit accumulated snow determination methods and system |
| CN107449180A (en) * | 2017-07-07 | 2017-12-08 | 珠海格力电器股份有限公司 | A kind of control method of heating machine set, device and heating machine set |
| CN112524746B (en) * | 2019-09-17 | 2021-11-26 | 青岛海尔空调电子有限公司 | Control method for outdoor unit balanced frosting in multi-split air conditioning system |
| CN112179040A (en) * | 2020-09-21 | 2021-01-05 | 珠海格力电器股份有限公司 | Defrosting control method and device for evaporator and refrigeration equipment |
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| CN1263238A (en) * | 2000-02-03 | 2000-08-16 | 清华泰豪科技股份有限公司 | Defrost control method of air-cooled heat-pump air-conditioner and its device |
| CN1548882A (en) * | 2003-05-20 | 2004-11-24 | 乐金电子(天津)电器有限公司 | Defrosting apparatus for refrigerator and defrosting method thereof |
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