CN106247563B - The dirty stifled detection method of air-conditioning, system and air-conditioning based on bilateral pressure difference - Google Patents
The dirty stifled detection method of air-conditioning, system and air-conditioning based on bilateral pressure difference Download PDFInfo
- Publication number
- CN106247563B CN106247563B CN201610789763.8A CN201610789763A CN106247563B CN 106247563 B CN106247563 B CN 106247563B CN 201610789763 A CN201610789763 A CN 201610789763A CN 106247563 B CN106247563 B CN 106247563B
- Authority
- CN
- China
- Prior art keywords
- fan
- dirt filtrating
- filtrating screen
- dirty stifled
- rotation speed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Air Conditioning Control Device (AREA)
Abstract
The present invention is more particularly directed to a kind of dirty stifled detection method of air-conditioning based on bilateral pressure difference, system and air-conditionings.Method is the following steps are included: obtain the leeward side pressure value of heat exchanger under the leeward side pressure value of dirt filtrating screen or the first rotation speed of fan under the first rotation speed of fan；Dirt filtrating screen side pressure value windward is obtained according to the first rotation speed of fan；Calculate the first pressure difference of dirt filtrating screen two sides or the second pressure difference of indoor unit two sides；The dirty stifled grade of dirt filtrating screen is obtained according to the first pressure difference and the first rotation speed of fan, or the dirty stifled grade of indoor unit is obtained according to the second pressure difference and the first rotation speed of fan.The present invention directly acquires dirt filtrating screen side pressure value windward by the first rotation speed of fan, therefore only need the leeward side pressure value of a pressure sensor acquisition dirt filtrating screen or the leeward side pressure value of heat exchanger that the dirty stifled grade of dirt filtrating screen or indoor unit can be obtained, not only testing result is accurate, detection method is simple and saves a pressure sensor, low in cost.
Description
Technical field
The present invention relates to airconditioning control field, in particular to the dirty stifled detection method of a kind of air-conditioning based on bilateral pressure difference is
System and air-conditioning.
Background technique
Dirt filtrating screen and heat exchanger occupy critical positions in air conditioner indoor unit air circulation, and air first flows through dirt filtrating screen,
Wind circulation path is constituted using heat exchanger, air flows in air duct takes the heat in heat exchanger out of, to realize interior
The refrigeration or heating in space.But due in air float grit presence, both parts easily dust stratification and influence in air conditioning chamber
The air circulation of machine.The either dirty stifled or dirt filtrating screen of heat exchanger is dirty stifled, can all have a huge impact to air conditioning performance.Heat exchange
Device or dirt filtrating screen it is dirty it is stifled after, circulation of the air in air duct is inadequate, then will lead to the heat in heat exchanger cannot sufficiently distribute,
It causes in cooling mode, heat exchange temperature persistently reduces；Under heating mode, heat exchange temperature continues raised as a result, and warm
The continuous decrease of degree or rising will lead to heat exchanger and other device failures, or triggering air-conditioning protection mechanism and it is out of service.
In addition to this, indoor set heat exchanger or dirty block up of dirt filtrating screen can also make air conditioning exhausting with dust taste, and user experience is made to be deteriorated.And
After dust adheres on dirt filtrating screen and heat exchanger, many bacteriums meetings are parasitic wherein, these bacteriums diffuse with air conditioning exhausting in interior
Space can cause damages to human health.
The dirty stifled detection method of the air-conditioning of traditional dirt filtrating screen or air conditioner indoor unit has power of fan detection method and bilateral pressure difference to examine
Survey method.Former approach belongs to indirect detection, and principle is that power of fan can change with the difference of dirty stifled degree.But due to air-conditioning
The complexity of system, there are many factor for influencing power of fan, and there are also a lot of other the dominance factors and Recessive elementSs in addition to dirty block up.It is aobvious
Sexual factor such as voltage ripple of power network, wind guide strip angle etc. can be compensated and correct, but many Recessive elementSs are not done
Method compensates, this is the maximum reason for causing its testing result not accurate enough.Second of detection method is the direct method of measurement, inspection
It is accurate to survey, but two pressure sensors is needed to measure pressure at both sides simultaneously, and the cost is relatively high.
Summary of the invention
The present invention provides a kind of dirty stifled detection method of air-conditioning based on bilateral pressure difference, system and air-conditionings, solve above
Technical problem.
The technical scheme to solve the above technical problems is that
According to one aspect of the present invention, a kind of dirty stifled detection method of the air-conditioning based on bilateral pressure difference is provided, including with
Lower step:
Step 1, the heat exchange under the leeward side pressure value of dirt filtrating screen or the first rotation speed of fan under the first rotation speed of fan is obtained
The leeward side pressure value of device；
Step 2, corresponding dirt filtrating screen side pressure value windward is obtained according to the first rotation speed of fan；
Step 3, the first pressure difference or heat exchanger of the leeward side pressure value of dirt filtrating screen and dirt filtrating screen side pressure value windward are calculated
Second pressure difference of leeward side pressure value and dirt filtrating screen side pressure value windward；
Step 4, the corresponding dirty stifled grade of dirt filtrating screen is obtained according to the first pressure difference and the first rotation speed of fan；Or according to second
Pressure difference and the first rotation speed of fan obtain the corresponding dirty stifled grade of indoor unit.
According to another aspect of the invention, a kind of dirty stifled detection system of the air-conditioning based on bilateral pressure difference is additionally provided, is wrapped
It includes the first acquisition module, the second acquisition module, difference calculating module and third and obtains module,
The first acquisition module is used to obtain the leeward side pressure value of dirt filtrating screen or the first wind under the first rotation speed of fan
The leeward side pressure value of heat exchanger under machine revolving speed；
Described second, which obtains module, is used to obtain corresponding dirt filtrating screen side pressure value windward according to the first rotation speed of fan；
The difference calculating module be used for calculate the leeward side pressure value of dirt filtrating screen and dirt filtrating screen windward side pressure value first
Second pressure difference of pressure difference or the leeward side pressure value of heat exchanger and dirt filtrating screen side pressure value windward；
The third obtains module, and to be used to obtain corresponding dirt filtrating screen according to the first pressure difference and the first rotation speed of fan dirty stifled etc.
Grade；Or the corresponding dirty stifled grade of indoor unit is obtained according to the second pressure difference and the first rotation speed of fan.
In order to solve technical problem of the invention, the present invention also provides a kind of air-conditioning, including it is above-described based on double
The dirty stifled detection system of the air-conditioning of side pressure difference.
The beneficial effects of the present invention are: the dirty stifled detection method of air-conditioning of the invention and detection system, are turned by the first blower
Speed directly acquires dirt filtrating screen side pressure value windward, thus only need the leeward side pressure value of pressure sensor acquisition dirt filtrating screen or
The dirty stifled grade of dirt filtrating screen or indoor unit can be obtained in the leeward side pressure value of person's heat exchanger, and not only testing result is accurate, detection
Method is simple and saves a pressure sensor, low in cost.
Detailed description of the invention
Fig. 1 is the flow diagram of the dirty stifled detection method of air-conditioning of the embodiment 1 based on bilateral pressure difference；
Fig. 2 is the structural schematic diagram of the dirty stifled detection system of air-conditioning based on bilateral pressure difference in embodiment 1；
Fig. 3 is the flow diagram of the dirty stifled detection method of air-conditioning of the embodiment 2 based on bilateral pressure difference；
Fig. 4 is the structural schematic diagram of the dirty stifled detection system of air-conditioning based on bilateral pressure difference in embodiment 2；
Fig. 5 is a kind of structural schematic diagram of the air-conditioning of embodiment 3.
Specific embodiment
The principle and features of the present invention will be described below with reference to the accompanying drawings, and the given examples are served only to explain the present invention, and
It is non-to be used to limit the scope of the invention.
The dirty stifled detection method based on bilateral pressure difference that the present invention provides a kind of, comprising the following steps:
Step 1, the heat exchange under the leeward side pressure value of dirt filtrating screen or the first rotation speed of fan under the first rotation speed of fan is obtained
The leeward side pressure value of device；
Step 2, corresponding dirt filtrating screen side pressure value windward is obtained according to the first rotation speed of fan；
Step 3, the first pressure difference or heat exchanger of the leeward side pressure value of dirt filtrating screen and dirt filtrating screen side pressure value windward are calculated
Second pressure difference of leeward side pressure value and dirt filtrating screen side pressure value windward；
Step 4, the corresponding dirty stifled grade of dirt filtrating screen is obtained according to the first pressure difference and the first rotation speed of fan；Or according to second
Pressure difference and the first rotation speed of fan obtain the corresponding dirty stifled grade of indoor unit.
Based on the dirty stifled detection method of above-mentioned air-conditioning, the present invention both can detect the dirty stifled degree of dirt filtrating screen, also can detecte sky
The dirty stifled degree of indoor unit is adjusted, the dirty stifled degree of air conditioner indoor unit is the dirty stifled degree of entirety of dirt filtrating screen and heat exchanger, the two
Difference is that the position setting of pressure sensor is different.When needing to detect the dirty stifled degree of dirt filtrating screen, pressure sensor is set
It sets between dirt filtrating screen and heat exchanger, by detecting the pressure of dirt filtrating screen leeward side, obtains the first pressure difference of dirt filtrating screen two sides, root
The dirty stifled grade of dirt filtrating screen is obtained according to the first pressure difference；When needing to detect the dirty stifled degree of indoor unit, pressure sensor is arranged
The second pressure difference of entire indoor unit two sides is obtained, that is, is filtered by detecting the pressure of heat exchanger leeward side in the leeward side of heat exchanger
Second pressure difference of dirt net inlet side and heat exchanger leeward side obtains the dirty stifled grade of indoor unit according to the second pressure difference.Above method
In, in addition to the position of pressure sensor setting and the data of acquisition are different, remaining step is all the same.Following embodiment is only to inspection
Survey the dirty stifled grade of dirt filtrating screen method be described in detail, detect the dirty stifled grade of indoor unit method reference implementation example explanation into
Row modification.Meanwhile the present invention can obtain the dirty stifled grade of dirt filtrating screen using two methods, one is in current rotation speed of fan
The lower dirty stifled grade of detection dirt filtrating screen, another kind is that current rotation speed of fan is adjusted to target fan revolving speed, then calculates target wind
The dirty stifled grade of dirt filtrating screen under machine revolving speed, is individually below described in detail above two method.
As shown in Figure 1, be a kind of flow diagram of the dirty stifled detection method of the air-conditioning based on bilateral pressure difference of the present embodiment 1,
The following steps are included:
Step 1, current rotation speed of fan and the leeward side pressure value of dirt filtrating screen are obtained；
Step 2, corresponding dirt filtrating screen side pressure value windward is obtained according to current rotation speed of fan；
Step 3, the first pressure difference of the leeward side pressure value of dirt filtrating screen and dirt filtrating screen side pressure value windward is calculated；
Step 4, the corresponding dirty stifled grade of dirt filtrating screen is obtained according to the first pressure difference and current rotation speed of fan.
In the present embodiment step 1, directly acquiring current rotation speed of fan by speed probe is 1080r/min, passes through pressure
It is p0 that force snesor, which acquires the leeward side pressure value of dirt filtrating screen,.In other embodiments, in order to guarantee the leeward side pressure value of dirt filtrating screen
Accuracy, the method that mean value can be taken using multi collect, specifically: keep current rotation speed of fan constant, to passing through pressure
Sensor continuous acquisition to multiple pressure values of dirt filtrating screen leeward side take mean value to obtain the leeward side pressure value of the dust filtration net.Than
When such as detecting, current rotation speed of fan 1080r/min is obtained first, and keeping current rotation speed of fan is that 1080r/min is constant, continuous to examine
5 leeward lateral pressures are surveyed, taking the average value of 5 pressure datas to obtain the leeward side pressure value of dirt filtrating screen is p0.In other embodiments
In, can also to by pressure sensor continuous acquisition to multiple pressure values of dirt filtrating screen leeward side remove maximum value and minimum
Mean value is taken to obtain the leeward side pressure value of the dust filtration net after value, herein without illustrating in detail.
In the present embodiment step 2, by inquiring the completely new dirt filtrating screen that pre-establishes side pressure value and rotation speed of fan windward
First mapping table obtains the corresponding dirt filtrating screen of current rotation speed of fan side pressure value windward.Completely new dirt filtrating screen windward side is in wind
It is standard atmospheric pressure when machine stalls, but with the promotion of intake velocity, pressure can be varied.In the present embodiment, first is corresponding
Relation table is to obtain in the process for carrying out data test to air-conditioning, and just have been cured before air-conditioning factory in operation of air conditioner journey
To facilitate inquiry to use in sequence.During data test, establish first mapping table specifically includes the following steps:
S201, by blower can running speed range according to preset speed spans be divided into m revolving speed section, i.e. d1~
dm；M by blower can running speed range determine that with speed spans, speed spans value range is 30~120 to be advisable, and value is too
Small institute's measuring pressure value does not change, and value will affect greatly very much the accuracy of last dirty stifled testing result.
S202 obtains the corresponding dirt filtrating screen windward side pressure value P 1 of each revolving speed section d1, d2 ... dm, P2 ... Pm,
Establish the first mapping table；Side pressure value is tachometer value corresponding pressure value at revolving speed interval midpoint to the dust filtration net windward；
Or the mean value of the corresponding pressure value of multiple tachometer values of revolving speed section etc. point distribution.Blower, which can be run, in the present embodiment turns
Fast minimum limits value is 400r/min, KB limit 1299r/min, and speed spans take 100r/min, then m is 9, can be formed
First mapping table as shown in table 1 below:
First mapping table in 1 different rotating speeds section of table
In upper table 1, p1 is that d1 midpoint tachometer value 450r/min corresponds to dirt filtrating screen side pressure value windward, and p2 is d2 midpoint
Tachometer value 550r/min corresponds to dirt filtrating screen side pressure value windward, and so on.Turn due in step 1, collecting current blower
Speed is 1080r/min, therefore current rotation speed of fan is in the section d7, and side pressure value is p7, Ke Yiji to corresponding dirt filtrating screen windward
Calculation obtains in step 3, and the first pressure difference of the leeward side pressure value of dirt filtrating screen and dirt filtrating screen side pressure value windward is p7-p0.
The present embodiment step 4 specifically: inquire the dirty stifled grade of the dirt filtrating screen pre-established and different rotation speed of fan, the first pressure
Second mapping table of difference, 3 calculated first pressure difference corresponding dirt filtrating screen under current rotation speed of fan of obtaining step are dirty stifled
Grade.In the present embodiment, the second mapping table is to obtain in the process for carrying out data test to air-conditioning, and dispatch from the factory in air-conditioning
It is preceding just to have been cured in operation of air conditioner program to facilitate inquiry to use.In the present embodiment, is established during data test
Two mapping tables comprising the following specific steps
Firstly, obtaining air-conditioning for the first time in use, the corresponding dirt filtrating screen windward side of tachometer value at each revolving speed interval midpoint
Pressure value and the leeward side pressure value of dirt filtrating screen take the difference of the two to obtain the first pressure difference, and first pressure difference are set as first
Numerical value；
Then it after preset time, such as by 1 year and dirt filtrating screen does not clean always, obtains in each revolving speed section
Point place's corresponding dirt filtrating screen of tachometer value side pressure value and the leeward side pressure value of dirt filtrating screen windward, take the difference of the two to obtain at this time
First pressure difference, and it is set as second value；First numerical value and second value form the corresponding pressure differential range in revolving speed section；
Finally, the pressure differential range is divided equally, obtain under the revolving speed section, each dirty stifled grade of dirt filtrating screen is corresponding
Pressure differential range.In the present embodiment, respectively number can arbitrarily be chosen as needed, need to only meet pressure difference value in each dirty stifled grade
There is certain span, for example the pressure differential range is divided into 4 small ranges in the present embodiment, each small range is one corresponding
The dirty stifled grade of dirt filtrating screen is divided into 4 grades, it is as shown in table 2 to eventually form the second mapping table by the dirty stifled grade of dirt filtrating screen:
Second mapping table in 2 different rotating speeds section of table
In the present embodiment step 3, the first pressure difference of the leeward side pressure value of dirt filtrating screen and dirt filtrating screen side pressure value windward is p7-
P0, because revolving speed section is in the section d7, and the value of (p7-p0) described in assuming is between Δ P72- Δ P73, available filter
The dirty stifled grade of dirt net is z3 grades.In the present embodiment, completely new dirt filtrating screen two sides pressure difference is approximately 0, and the bigger dirt filtrating screen of pressure difference is dirty stifled
More serious, the two is proportional to.
It, can be according to different filters after the dirty stifled detection method of air-conditioning through the invention obtains the dirty stifled grade of dirt filtrating screen
The dirty stifled grade of dirt net takes air-conditioning different control modes, such as in the present embodiment:
When the dirty stifled grade of dirt filtrating screen or the dirty stifled grade of indoor unit are z1 grades, dirty stifled grade is shown by display board；
When the dirty stifled grade of dirt filtrating screen or the dirty stifled grade of indoor unit are z2 grades, dirty stifled grade is shown by display board, together
Using buzzer rings prompt or intelligent voice prompt when Shi Kaiji；
When the dirty stifled grade of dirt filtrating screen or the dirty stifled grade of indoor unit are z3 grades, dirty stifled grade is shown by display board, together
Shi Caiyong buzzer is carried out buzzing prompt in a manner of multiple ring in short-term when air-conditioning is switched on and/or runs and/or carries out intelligence
Energy voice prompting, driving cleaning device carry out automated cleaning；
When the dirty stifled grade of dirt filtrating screen or the dirty stifled grade of indoor unit are z4 grades, dirty stifled grade is shown by display board, is adopted
It carries out buzzing prompt in a manner of multiple ring in short-term when air-conditioning is switched on and/or runs with buzzer and/or carries out intelligent language
Sound prompt, and it is out of service to control air-conditioning；In the control mode, dirty stifled higher grade, and dirt filtrating screen or dirty block up of indoor unit are got over
Seriously.
In other embodiments, through the invention after the dirty stifled detection method of air-conditioning obtains the dirty stifled grade of dirt filtrating screen,
It can also carry out following control: detect the dirty stifled grade of the dust filtration net again after preset time or indoor unit is dirty stifled etc.
Grade promotes rotation speed of fan, is mended automatically to air quantity when the dirty stifled grade of dirt filtrating screen or the dirty stifled grade of indoor unit do not decline
It repays.Automatic step is carried out to air quantity the following steps are included:
S501 obtains corresponding rotation speed of fan compensation rate according to the dirty stifled grade of dirt filtrating screen；
S502 obtains the rotating speed of target of blower according to rotation speed of fan compensation rate；
S503 controls fan operation according to the rotating speed of target of blower.
In the S501, by inquiring the mapping table of the dirt filtrating screen dirty stifled grade and rotation speed of fan compensation rate that pre-establish,
Obtain the corresponding rotation speed of fan compensation rate of currently dirty stifled grade.Or rotation speed of fan compensation rate calculation formula is pre-established, it will work as
Preceding dirty stifled grade substitutes into corresponding rotation speed of fan compensation rate calculation formula, generates the corresponding rotation speed of fan compensation of currently dirty stifled grade
Amount.
As shown in Fig. 2, for a kind of dirty stifled detection system of air-conditioning based on bilateral pressure difference corresponding with the method for embodiment 1
Structural schematic diagram, including the first acquisition module, the second acquisition module, difference calculating module and third acquisition module, described first
It obtains module and is used to obtain the leeward side pressure value of dirt filtrating screen under current rotation speed of fan, or the currently heat exchanger under rotation speed of fan
Leeward side pressure value；Described second, which obtains module, is used to obtain corresponding dirt filtrating screen lateral pressure windward according to current rotation speed of fan
Value；The difference calculating module is used to calculate the first pressure difference of the leeward side pressure value of dirt filtrating screen and dirt filtrating screen side pressure value windward,
Or the second pressure difference of the leeward side pressure value of heat exchanger and dirt filtrating screen side pressure value windward；The third obtains module and is used for basis
First pressure difference and current rotation speed of fan obtain the corresponding dirty stifled grade of dirt filtrating screen；Or according to the second pressure difference and current rotation speed of fan
Obtain the corresponding dirty stifled grade of indoor unit.
It preferably, further include control module in the present embodiment, the control module is used for dirty stifled according to different dirt filtrating screens
Grade or the dirty stifled grade of different indoor units take air-conditioning different control modes；And/or for after preset time
Again the detection dirty stifled grade of the dust filtration net perhaps the dirty stifled grade of indoor unit when the dirty stifled grade of dirt filtrating screen or indoor unit it is dirty stifled etc.
When grade does not decline, rotation speed of fan is promoted, air quantity is compensated automatically.
Preferably, the first acquisition module described in the present embodiment includes: revolving speed acquisition unit, is turned for acquiring current blower
Speed；First pressure sensor between dirt filtrating screen and heat exchanger is set, the pressure value for continuous acquisition dirt filtrating screen leeward side；
Or the second pressure sensor of heat exchanger leeward side, the pressure value for continuous acquisition heat exchanger leeward side are set；It calculates
Unit, for continuous acquisition to multiple pressure values of dirt filtrating screen leeward side directly take mean value or remove maximum value, minimum
Mean value is taken to obtain multiple pressure of the leeward side pressure value of the dust filtration net or the heat exchanger leeward side arrived to continuous acquisition after value
Value directly takes mean value or takes mean value to obtain the leeward side pressure value of the heat exchanger after removing maximum value, minimum value.
The dust filtration net windward side pressure acquisition module includes: the first storage unit, for storing the dust filtering pre-established
First mapping table of net side pressure value and different rotation speed of fan windward；First query unit, for inquiring described first pair
Relation table is answered, the corresponding dirt filtrating screen of current rotation speed of fan side pressure value windward is obtained.The second acquisition module includes: second to deposit
Storage unit, for storing the second mapping table of the dirt filtrating screen dirty stifled grade and different rotation speed of fan, pressure difference that pre-establish, or
The third mapping table of the indoor unit that person pre-establishes dirty stifled grade and different rotation speed of fan, pressure difference；Second query unit is used
In inquiring the second mapping table, calculated first pressure difference of computing unit corresponding dirt filtrating screen under current rotation speed of fan is obtained
Dirty stifled grade；Or inquiry third mapping table, calculated second pressure difference of computing unit is obtained under current rotation speed of fan
The corresponding dirty stifled grade of indoor unit.
The dirty stifled detection method of the air-conditioning of the present embodiment and detection system determine dirt filtrating screen using the pressure difference of dirt filtrating screen two sides
Dirty stifled degree, but the pressure of dirt filtrating screen windward side not instead of open detection function real-time detection measures and solid in advance
Change into program.When air-conditioning really runs open detection function, only detect the leeward lateral pressure of dirt filtrating screen, then according to detection when
Rotation speed of fan find corresponding leeward lateral pressure, then make it is poor, dirty stifled grade is determined according to difference.This detection method is not only
Testing result is accurate, and need to only use a pressure sensor, and detection method is simple and low in cost.
As described in Figure 3, the method for dirty stifled detection being carried out to dirt filtrating screen based on bilateral pressure difference for embodiment 2, including following step
It is rapid:
Step 1, current rotation speed of fan is adjusted to preset target fan revolving speed, and obtains the filter under target fan revolving speed
The leeward side pressure value of dirt net；
Step 2, corresponding dirt filtrating screen side pressure value windward is obtained according to target fan revolving speed；
Step 3, the first pressure difference of the leeward side pressure value of dirt filtrating screen and dirt filtrating screen side pressure value windward is calculated；
Step 4, the corresponding dirty stifled grade of dirt filtrating screen is obtained according to the first pressure difference.
In the present embodiment step 1, the current rotation speed of fan of blower is adjusted to target fan revolving speed, such as 1080r/ first
Min, then acquiring the leeward side pressure value of dirt filtrating screen by pressure sensor is p0.Target fan revolving speed in the present embodiment is in sky
Within the scope of the rotation speed of fan that adjusting system allows, and in the range of speeds that air-conditioning most often works, there is very big probability in this way
The current rotation speed of fan of air-conditioning is near target fan revolving speed, and there is no need to the current rotation speed of fan to air-conditioning to be adjusted
Or adjustment amplitude is smaller.In other embodiments, it in order to guarantee the accuracy of the leeward side pressure value of dirt filtrating screen, can use more
It is secondary to acquire the method for taking mean value, specifically: keep target fan revolving speed constant, the filter to arriving by pressure sensor continuous acquisition
Multiple pressure values of dirt net leeward side take mean value to obtain the leeward side pressure value of the dust filtration net.Such as when detection, target wind is kept
Machine revolving speed is that 1080r/min is constant, continuously detects 5 leeward lateral pressures, and the average value of 5 pressure datas is taken to obtain dirt filtrating screen back
Wind side pressure value is p0.It in other embodiments, can also be to the dirt filtrating screen leeward side arrived by pressure sensor continuous acquisition
Multiple pressure values remove maximum value and minimum value after take mean value to obtain the leeward side pressure value of the dust filtration net, herein without detailed
Thin citing.
In the present embodiment step 2, by inquiring the completely new dirt filtrating screen pre-established, side pressure value and target fan turn windward
4th mapping table of speed obtains the corresponding dirt filtrating screen of target fan revolving speed side pressure value windward.In the present embodiment, the 4th pair
Answering relation table is to obtain in the process for carrying out data test to air-conditioning, and just have been cured before air-conditioning factory in operation of air conditioner
To facilitate inquiry to use in program.Meanwhile by the way that rotation speed of fan is fixed as target fan revolving speed in the present embodiment, therefore only need
The corresponding dirt filtrating screen of target fan revolving speed side pressure value windward is obtained during data test, without warp
The corresponding dirt filtrating screen of the different rotation speed of fan values of repeated detection acquisition side pressure value windward is crossed, therefore establishes the 4th mapping table
Process is simpler.On the other hand, the present invention do not need by blower can running speed be divided into multiple revolving speed sections, by each
Side pressure value simply measures the corresponding dust filtering in each revolving speed section to the corresponding dirt filtrating screen of tachometer value windward at revolving speed interval midpoint
Net side pressure value windward, therefore the testing result obtained also can be more accurate.
Target fan revolving speed is 1080r/min in the present embodiment, inquires the 4th mapping table, obtains corresponding filter
Side pressure value is P1 to dirt net windward, can be calculated in step 3, the leeward side pressure value of dirt filtrating screen and dirt filtrating screen lateral pressure windward
First pressure difference of value is p1-p0.
The present embodiment step 4 specifically: inquire the dirty stifled grade of the dirt filtrating screen pre-established and the first pressure difference in target fan
The 5th mapping table under revolving speed, 3 calculated first pressure difference corresponding dirt filtrating screen under target fan revolving speed of obtaining step
Dirty stifled grade.In the present embodiment, the 5th mapping table is obtained in the process for carrying out data test to air-conditioning, and in air-conditioning
It is just had been cured before factory in operation of air conditioner program to facilitate inquiry to use.By the way that rotation speed of fan to be fixed as in the present embodiment
Target fan revolving speed, therefore only need to obtain the second mapping table under target fan revolving speed during data test i.e.
Can, detection data is less, and the process for establishing the 5th mapping table is simpler, simultaneously as the dirt filtrating screen that step 2 obtains is met
Wind side pressure value is more accurate, and the dirty stifled level results of the dirt filtrating screen obtained in this step also can be more accurate.This specific implementation
Example in, the 5th mapping table is established during data test comprising the following specific steps
Firstly, obtaining air-conditioning for the first time in use, the corresponding dirt filtrating screen of target fan revolving speed side pressure value and dust filtering windward
Leeward side pressure value is netted, takes the difference of the two to obtain the first pressure difference, and first pressure difference is set as the first numerical value；
Then after preset time, such as by 1 year and dirt filtrating screen does not clean always, target fan revolving speed pair is obtained
The dirt filtrating screen answered side pressure value and the leeward side pressure value of dirt filtrating screen windward, the difference both taken obtain the first pressure difference at this time, and
It is set as second value；First numerical value and second value form the corresponding pressure differential range of target fan revolving speed；
Finally, the pressure differential range is divided equally, obtain under target fan revolving speed, each dirty stifled grade of dirt filtrating screen is corresponding
Pressure differential range.In the present embodiment, respectively number can arbitrarily be chosen as needed, need to only meet pressure difference in each dirty stifled grade
Value has certain span, for example the pressure differential range is divided into 4 small ranges, each small range corresponding one in the present embodiment
A dirty stifled grade of dirt filtrating screen, i.e., be divided into 4 grades for the dirty stifled grade of dirt filtrating screen, it is as shown in table 1 to eventually form the 5th mapping table:
The 5th mapping table under 3 target fan revolving speed of table
In the present embodiment step 3, the first pressure difference of the leeward side pressure value of dirt filtrating screen and dirt filtrating screen side pressure value windward is p1-
P0, it is assumed that for the value of (p1-p0) between Δ P11- Δ P12, the dirty stifled grade of available dirt filtrating screen is z2 grades.This reality
It applies in example, completely new dirt filtrating screen two sides pressure difference is approximately 0, and the bigger dirt filtrating screen of pressure difference is dirty stifled more serious, and the two is proportional to.
In other embodiments of the invention, multiple target fan revolving speeds, and the 4th corresponding relationship can also be preset
Include dirt filtrating screen corresponding with each target fan revolving speed side pressure value windward in table, includes every in the 5th mapping table
Under a target fan revolving speed, the corresponding relationship of different first pressure differences and the dirty stifled grade of different dirt filtrating screens, in this way in the application present invention
Method when, immediate target fan revolving speed can be selected according to current rotation speed of fan, avoid turning current blower as far as possible
Speed is adjusted, and not only control process is simpler, but also can guarantee the accuracy of dirty stifled grade testing result.
It, can be according to different dirt filtrating screens after dirty stifled detection method through the invention obtains the dirty stifled grade of dirt filtrating screen
Dirty stifled grade takes air-conditioning different control modes, or is compensated automatically air quantity, specific method and is referred to reality
The method in example 1 is applied, herein without being described in detail.
As shown in figure 4, being a kind of structural schematic diagram of the dirty stifled detection system based on bilateral pressure difference of embodiment 2, including turn
Velocity modulation mould preparation block, first obtain module, the second acquisition module, difference calculating module and third and obtain module, the revolving speed adjustment
Module is used to current rotation speed of fan being adjusted to preset target fan revolving speed；The first acquisition module is for obtaining target wind
The leeward side pressure value of dirt filtrating screen or the leeward side pressure value of heat exchanger under machine revolving speed；Described second, which obtains module, is used for according to mesh
It marks rotation speed of fan and obtains corresponding dirt filtrating screen side pressure value windward；The difference calculating module is for calculating the leeward side pressure of dirt filtrating screen
Force value and dirt filtrating screen the first pressure difference of side pressure value or the leeward side pressure value of heat exchanger and dirt filtrating screen side pressure value windward windward
The second pressure difference；The third obtains module, dirty stifled etc. for obtaining the dirt filtrating screen under target fan revolving speed according to the first pressure difference
Grade；Or the dirty stifled grade of indoor unit under target fan revolving speed is obtained according to the second pressure difference.
It preferably, further include control module in the present embodiment, the control module is used for dirty stifled according to different dirt filtrating screens
Grade or the dirty stifled grade of different indoor units take air-conditioning different control modes；And/or for after preset time
Again the detection dirty stifled grade of the dust filtration net perhaps the dirty stifled grade of indoor unit when the dirty stifled grade of dirt filtrating screen or indoor unit it is dirty stifled etc.
When grade does not decline, rotation speed of fan is promoted, air quantity is compensated automatically.
Preferably, the first acquisition module described in the present embodiment includes the first pressure being arranged between dirt filtrating screen and heat exchanger
Force snesor, the pressure value for continuous acquisition dirt filtrating screen leeward side；Or the second pressure biography of heat exchanger leeward side is set
Sensor, the pressure value for continuous acquisition heat exchanger leeward side；Computing unit, the dirt filtrating screen leeward side for being arrived to continuous acquisition
Multiple pressure values directly take mean value or take mean value to obtain the leeward side pressure value of the dust filtration net after removing maximum value, minimum value
Either to continuous acquisition to multiple pressure values of heat exchanger leeward side directly take mean value or take after removing maximum value, minimum value
Mean value obtains the leeward side pressure value of the heat exchanger.
The second acquisition module includes: the first storage unit, for storing the dirt filtrating screen pre-established lateral pressure windward
4th mapping table of value and target fan revolving speed；First query unit is obtained for inquiring the 4th mapping table
The corresponding dirt filtrating screen of target fan revolving speed side pressure value windward.It includes the second storage unit that the third, which obtains module, for depositing
The 5th mapping table of the dirty stifled grade of dirt filtrating screen and pressure difference that pre-establish under target fan revolving speed is stored up, or is pre-established
The 6th mapping table under target fan revolving speed of the dirty stifled grade of indoor unit and pressure difference；Second query unit, for inquiring
5th mapping table obtains the first pressure difference corresponding dirty stifled grade of dirt filtrating screen under target fan revolving speed；Or inquiry
6th mapping table obtains the second pressure difference corresponding dirty stifled grade of indoor unit under target fan revolving speed.
The dirty stifled detection method of the air-conditioning of the present embodiment and detection system determine dirt filtrating screen using the pressure difference of dirt filtrating screen two sides
Dirty stifled degree, but the pressure of dirt filtrating screen windward side not instead of open detection function real-time detection measures and solid in advance
Change into program.When air-conditioning really runs open detection function, only detect the leeward lateral pressure of dirt filtrating screen, then according to detection when
Rotation speed of fan find corresponding leeward lateral pressure, then make it is poor, dirty stifled grade is determined according to difference.This detection method is not only
Testing result is accurate, and need to only use a pressure sensor, and detection method is simple and low in cost.
As shown in figure 5, being a kind of structural schematic diagram of the air-conditioning of the present embodiment 3, including above-described based on bilateral pressure difference
The dirty stifled detection system of air-conditioning.
In the description of the present invention, it is to be understood that, term " first ", " second " are used for description purposes only, and cannot
It is interpreted as indication or suggestion relative importance or implicitly indicates the quantity of indicated technical characteristic.Define as a result, " the
One ", the feature of " second " can explicitly or implicitly include at least one of the features.In the description of the present invention, " multiple "
It is meant that at least two, such as two, three etc., unless otherwise specifically defined.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in office
It can be combined in any suitable manner in one or more embodiment or examples.In addition, without conflicting with each other, the skill of this field
Art personnel can tie the feature of different embodiments or examples described in this specification and different embodiments or examples
It closes and combines.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is not considered as limiting the invention, those skilled in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, modifies, replacement and variant.
Claims (12)
1. a kind of dirty stifled detection method of air-conditioning based on bilateral pressure difference, which comprises the following steps:
Step 1, the heat exchanger back under the leeward side pressure value of dirt filtrating screen or the first rotation speed of fan under the first rotation speed of fan is obtained
Wind side pressure value；
Step 2, corresponding dirt filtrating screen side pressure value windward is obtained according to the first rotation speed of fan；
Step 3, the first pressure difference of side pressure value or heat exchanger are leeward windward for the leeward side pressure value of calculating dirt filtrating screen and dirt filtrating screen
Second pressure difference of side pressure value and dirt filtrating screen side pressure value windward；
Step 4, the corresponding dirty stifled grade of dirt filtrating screen is obtained according to the first pressure difference and the first rotation speed of fan, or according to the second pressure difference
The corresponding dirty stifled grade of indoor unit is obtained with the first rotation speed of fan；
First rotation speed of fan is current rotation speed of fan or target fan revolving speed；
When the first rotation speed of fan is current rotation speed of fan, in step 2, by inquiring the dirt filtrating screen pre-established lateral pressure windward
First mapping table of value and different rotation speed of fan, obtains the corresponding dirt filtrating screen of current rotation speed of fan side pressure value windward；
When the first rotation speed of fan is target fan revolving speed, in step 2, by inquiring the dirt filtrating screen pre-established lateral pressure windward
4th mapping table of value and target fan revolving speed obtains the corresponding dirt filtrating screen of target fan revolving speed side pressure value windward.
2. the dirty stifled detection method of the air-conditioning according to claim 1 based on bilateral pressure difference, which is characterized in that further include step
5, specifically: different control is taken air-conditioning according to the different dirty stifled grade of dirt filtrating screen or the dirty stifled grade of different indoor units
Mode.
3. the dirty stifled detection method of the air-conditioning according to claim 1 based on bilateral pressure difference, which is characterized in that further include step
5, specifically: it detects the dirty stifled grade of the dust filtration net or the dirty stifled grade of indoor unit again after preset time, works as dirt filtrating screen
When dirty stifled grade or the dirty stifled grade of indoor unit do not decline, rotation speed of fan is promoted, air quantity is compensated automatically.
4. any dirty stifled detection method of the air-conditioning based on bilateral pressure difference according to claim 1~3, which is characterized in that step
In rapid 1, keep the first rotation speed of fan constant, multiple pressure to the dirt filtrating screen leeward side arrived by pressure sensor continuous acquisition
Value takes mean value to obtain the leeward side pressure value of dirt filtrating screen or press passing through after directly taking mean value perhaps to remove maximum value, minimum value
Force snesor continuous acquisition to heat exchanger leeward side multiple pressure values directly take mean value or remove maximum value, minimum value after
Mean value is taken to obtain the leeward side pressure value of heat exchanger.
5. any dirty stifled detection method of the air-conditioning based on bilateral pressure difference according to claim 1~3, which is characterized in that build
Found first mapping table specifically:
By blower can running speed range according to preset speed spans be divided into multiple revolving speed sections；The speed spans are 30
~120r/min；
The corresponding dirt filtrating screen in each revolving speed section in multiple revolving speed sections side pressure value windward is obtained, the first corresponding relationship is established
Table；
Side pressure value is the corresponding dirt filtrating screen of tachometer value side pressure value windward at revolving speed interval midpoint to the dust filtration net windward, or
For the mean value of the corresponding dirt filtrating screen of the multiple tachometer values side pressure value windward of revolving speed section etc. point distribution.
6. any dirty stifled detection method of the air-conditioning based on bilateral pressure difference according to claim 1~3, which is characterized in that when
When first rotation speed of fan is current rotation speed of fan, the step 4 specifically:
The second mapping table of the dirt filtrating screen dirty stifled grade and different rotation speed of fan, pressure difference that pre-establish is inquired, obtains first
Pressure difference corresponding dirty stifled grade of dirt filtrating screen under current rotation speed of fan；
Or the third mapping table of the indoor unit dirty stifled grade and different rotation speed of fan, pressure difference that pre-establish is inquired, it obtains
Second pressure difference corresponding dirty stifled grade of indoor unit under current rotation speed of fan.
7. any dirty stifled detection method of the air-conditioning based on bilateral pressure difference according to claim 1~3, which is characterized in that when
When first rotation speed of fan is target fan revolving speed, the step 4 specifically:
The 5th mapping table of dirt filtrating screen dirty stifled grade and pressure difference under the target fan revolving speed pre-established is inquired, obtains first
The dirty stifled grade of the corresponding dirt filtrating screen of pressure difference；
Or the 6th mapping table of indoor unit dirty stifled grade and pressure difference under the target fan revolving speed pre-established is inquired, it obtains
The dirty stifled grade of the corresponding indoor unit of second pressure difference.
8. a kind of dirty stifled detection system of air-conditioning based on bilateral pressure difference, which is characterized in that obtain module, the second acquisition including first
Module, difference calculating module and third obtain module,
The first acquisition module is used to obtain the leeward side pressure value of dirt filtrating screen or the first blower turn under the first rotation speed of fan
The leeward side pressure value of heat exchanger under speed；
Described second, which obtains module, is used to obtain corresponding dirt filtrating screen side pressure value windward according to the first rotation speed of fan；
The difference calculating module is used to calculate the first pressure difference of the leeward side pressure value of dirt filtrating screen and dirt filtrating screen side pressure value windward,
Or the second pressure difference of the leeward side pressure value of heat exchanger and dirt filtrating screen side pressure value windward；
The third obtains module and is used to obtain the corresponding dirty stifled grade of dirt filtrating screen according to the first pressure difference and the first rotation speed of fan；Or
Person obtains the corresponding dirty stifled grade of indoor unit according to the second pressure difference and the first rotation speed of fan；
First rotation speed of fan is current rotation speed of fan or target fan revolving speed；
Described second, which obtains module, includes:
First storage unit, for storing the first corresponding of the dirt filtrating screen pre-established side pressure value and different rotation speed of fan windward
Relation table；Or the 4th corresponding relationship for storing the dirt filtrating screen pre-established side pressure value and target fan revolving speed windward
Table；
First query unit obtains the corresponding dirt filtrating screen of current rotation speed of fan windward for inquiring first mapping table
Side pressure value；Or for inquiring the 4th mapping table, obtain the corresponding dirt filtrating screen side pressure windward of target fan revolving speed
Force value.
9. the dirty stifled detection system of the air-conditioning according to claim 8 based on bilateral pressure difference, which is characterized in that further include control
Module, the control module is for adopting air-conditioning according to the different dirty stifled grade of dirt filtrating screen or the dirty stifled grade of different indoor units
Take different control modes；And/or for detecting the dirty stifled grade of the dust filtration net or indoor unit again after preset time
Dirty stifled grade promotes rotation speed of fan when the dirty stifled grade of dirt filtrating screen or the dirty stifled grade of indoor unit do not decline, and carries out to air quantity
Automatic compensation.
10. the dirty stifled detection system of the air-conditioning based on bilateral pressure difference according to claim 8 or claim 9, which is characterized in that described
One, which obtains module, includes:
First pressure sensor between dirt filtrating screen and heat exchanger is set, for dirt filtrating screen under the first rotation speed of fan of continuous acquisition
The pressure value of leeward side；Or the second pressure sensor of heat exchanger leeward side is set, turn for the first blower of continuous acquisition
The pressure value of the lower heat exchanger leeward side of speed；
Computing unit, for continuous acquisition to multiple pressure values of dirt filtrating screen leeward side directly take mean value or remove maximum
Mean value is taken to obtain the leeward side pressure value of the dust filtration net after value, minimum value, or the heat exchanger leeward side that continuous acquisition is arrived
Multiple pressure values directly take mean value or take mean value to obtain the leeward side pressure value of the heat exchanger after removing maximum value, minimum value.
11. the dirty stifled detection system of the air-conditioning based on bilateral pressure difference according to claim 8 or claim 9, which is characterized in that described
Three, which obtain modules, includes:
Second storage unit, for storing second pair of the dirty stifled grade of dirt filtrating screen and different rotation speed of fan, pressure difference that pre-establish
Relation table is answered, or the third mapping table of the indoor unit pre-established dirty stifled grade and different rotation speed of fan, pressure difference；Or
For storing the 5th mapping table of the dirty stifled grade of dirt filtrating screen and pressure difference that pre-establish under target fan revolving speed, or it is pre-
The 6th mapping table of the dirty stifled grade of the indoor unit first established and pressure difference under target fan revolving speed；
It is corresponding under current rotation speed of fan to obtain first pressure difference for inquiring the second mapping table for second query unit
The dirty stifled grade of dirt filtrating screen, it is corresponding under current rotation speed of fan to obtain second pressure difference or inquiry third mapping table
The dirty stifled grade of indoor unit；Or for inquiring the 5th mapping table, the first pressure difference is obtained under target fan revolving speed
The corresponding dirty stifled grade of dirt filtrating screen, or inquiry the 6th mapping table, obtain the second pressure difference under target fan revolving speed
The corresponding dirty stifled grade of indoor unit.
12. a kind of air-conditioning, which is characterized in that dirty stifled including any air-conditioning based on bilateral pressure difference of claim 8~11
Detection system.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610789763.8A CN106247563B (en) | 2016-08-31 | 2016-08-31 | The dirty stifled detection method of air-conditioning, system and air-conditioning based on bilateral pressure difference |
| PCT/CN2017/084605 WO2018040616A1 (en) | 2016-08-31 | 2017-05-16 | Method and system for detecting dirt blockage of air conditioner based on single pressure sensor, and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610789763.8A CN106247563B (en) | 2016-08-31 | 2016-08-31 | The dirty stifled detection method of air-conditioning, system and air-conditioning based on bilateral pressure difference |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106247563A CN106247563A (en) | 2016-12-21 |
| CN106247563B true CN106247563B (en) | 2019-04-09 |
Family
ID=58081115
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610789763.8A Active CN106247563B (en) | 2016-08-31 | 2016-08-31 | The dirty stifled detection method of air-conditioning, system and air-conditioning based on bilateral pressure difference |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106247563B (en) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018040616A1 (en) * | 2016-08-31 | 2018-03-08 | 广东美的制冷设备有限公司 | Method and system for detecting dirt blockage of air conditioner based on single pressure sensor, and air conditioner |
| CN108007839B (en) * | 2017-11-30 | 2023-10-13 | 深圳市鼎信科技有限公司 | Damping detector control method, computer readable storage medium and damping detector |
| CN108204654A (en) * | 2017-12-27 | 2018-06-26 | 青岛海信日立空调系统有限公司 | A kind of air processor and its control method |
| CN108224554A (en) * | 2017-12-27 | 2018-06-29 | 青岛海信日立空调系统有限公司 | A kind of air processor and its control method |
| CN110486890A (en) * | 2018-05-14 | 2019-11-22 | 青岛海尔空调器有限总公司 | Air conditioner and its control method |
| CN110822652A (en) * | 2018-08-07 | 2020-02-21 | 青岛海尔空调器有限总公司 | Air conditioner cleaning control method and device, air conditioner, computer equipment and storage medium |
| CN108981105A (en) * | 2018-08-20 | 2018-12-11 | 广东美的暖通设备有限公司 | Control method, air-conditioning and the computer readable storage medium of air-conditioning draught fan |
| CN110906512A (en) * | 2018-09-18 | 2020-03-24 | 青岛海尔空调器有限总公司 | Air conditioner heat exchanger monitoring method and device, air conditioner, computer equipment and storage medium |
| CN109916005B (en) * | 2019-03-21 | 2021-04-20 | 青岛海尔空调器有限总公司 | Self-cleaning humidification control method for air conditioner |
| CN109959117A (en) * | 2019-03-22 | 2019-07-02 | 四川长虹空调有限公司 | A kind of dirty stifled detection method of air-conditioning internal machine, device, air conditioner and storage medium |
| US10854065B1 (en) * | 2019-08-07 | 2020-12-01 | Quanta Computer Inc. | Fan filter replacement mechanism |
| CN111637591B (en) * | 2020-05-15 | 2021-12-31 | 宁波奥克斯电气股份有限公司 | Filter screen dust removal reminding control method and dust removal reminding device |
| CN112429029B (en) * | 2020-10-23 | 2021-11-30 | 石家庄国祥运输设备有限公司 | Method for online diagnosing filth blockage of air filter of air conditioning system of railway vehicle |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011202902A (en) * | 2010-03-26 | 2011-10-13 | Panasonic Corp | Air cleaner |
| CN104833051A (en) * | 2015-04-28 | 2015-08-12 | 广东美的制冷设备有限公司 | Detection method and detection device for dust deposition degree of filter screen as well as air regulating equipment |
| CN104896711A (en) * | 2015-06-11 | 2015-09-09 | 广东美的暖通设备有限公司 | Automatic cleaning system, air conditioner and control method |
| CN105276777A (en) * | 2014-07-17 | 2016-01-27 | 张辰志 | Intelligent constant control method and device for air filtration air volume |
| CN105363298A (en) * | 2014-08-15 | 2016-03-02 | 台达电子工业股份有限公司 | Ventilation apparatus having detection function of filter direct and method for filter dirt detection |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7261762B2 (en) * | 2004-05-06 | 2007-08-28 | Carrier Corporation | Technique for detecting and predicting air filter condition |
| US7275377B2 (en) * | 2004-08-11 | 2007-10-02 | Lawrence Kates | Method and apparatus for monitoring refrigerant-cycle systems |
-
2016
- 2016-08-31 CN CN201610789763.8A patent/CN106247563B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011202902A (en) * | 2010-03-26 | 2011-10-13 | Panasonic Corp | Air cleaner |
| CN105276777A (en) * | 2014-07-17 | 2016-01-27 | 张辰志 | Intelligent constant control method and device for air filtration air volume |
| CN105363298A (en) * | 2014-08-15 | 2016-03-02 | 台达电子工业股份有限公司 | Ventilation apparatus having detection function of filter direct and method for filter dirt detection |
| CN104833051A (en) * | 2015-04-28 | 2015-08-12 | 广东美的制冷设备有限公司 | Detection method and detection device for dust deposition degree of filter screen as well as air regulating equipment |
| CN104896711A (en) * | 2015-06-11 | 2015-09-09 | 广东美的暖通设备有限公司 | Automatic cleaning system, air conditioner and control method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106247563A (en) | 2016-12-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106247563B (en) | The dirty stifled detection method of air-conditioning, system and air-conditioning based on bilateral pressure difference | |
| CN106403167B (en) | The dirty stifled detection method of air-conditioning, system and air-conditioning based on single pressure sensor | |
| CN105928139B (en) | Air conditioner automatically cleaning control method | |
| CN104501360B (en) | Air-conditioner and its dehumidification control method | |
| CN108444044B (en) | Self-cleaning control method for air conditioner | |
| CN106352634A (en) | Method and system for detecting filth blockage of air-conditioner heat exchanger based on fan power and air conditioner | |
| CN105509246B (en) | Air conditioner humidifying controlling method and device | |
| CN106123219A (en) | Air-conditioning temperature/humidity control method | |
| CN109405180A (en) | A kind of condensation prevention control method and device | |
| CN106765960A (en) | Air-conditioner system, the control method of air-conditioner and linkage | |
| CN106091291A (en) | A kind of air-conditioning air volume self compensation control method, control system and air-conditioning | |
| CN106440186A (en) | Heat exchanger filth blockage detection method and system based on single pressure sensor, and air conditioner | |
| CN108361955B (en) | Method for preventing condensation by self-cleaning and air conditioner | |
| CN206207606U (en) | Central air conditioner system | |
| CN207335066U (en) | Frequency of air condition compressor compensation control system and air-conditioning system | |
| CN106196530A (en) | A kind of air-conditioning air volume self compensation control method, control system and air-conditioning | |
| CN109916007A (en) | Air conditioner automatically cleaning humidifying controlling method | |
| CN108844195A (en) | A kind of humiture setting value control device and control method | |
| WO2018040616A1 (en) | Method and system for detecting dirt blockage of air conditioner based on single pressure sensor, and air conditioner | |
| CN106885334A (en) | Variable air volume control in air conditioner equipment and device | |
| CN108826581A (en) | Air-conditioning filter net cleans judgment method | |
| CN1737436A (en) | Air conditioner capable of adjusting humidity and humidity adjusting and controlling method thereof | |
| CN109916040A (en) | Air conditioner automatically cleaning control method and air conditioner | |
| CN109916041A (en) | Air conditioner automatically cleaning control method and air conditioner | |
| CN109489215A (en) | A kind of wind speed self-adaptation control method, control device and unitary air handling unit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |