CN109210694A - A kind of air-conditioning based on wind pressure freezes the control method remedied automatically afterwards - Google Patents
A kind of air-conditioning based on wind pressure freezes the control method remedied automatically afterwards Download PDFInfo
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- CN109210694A CN109210694A CN201811051189.1A CN201811051189A CN109210694A CN 109210694 A CN109210694 A CN 109210694A CN 201811051189 A CN201811051189 A CN 201811051189A CN 109210694 A CN109210694 A CN 109210694A
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- China
- Prior art keywords
- wind pressure
- air
- wind
- time
- freezes
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- 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.)
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Classifications
-
- 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
- F24F11/43—Defrosting; Preventing freezing of indoor units
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/32—Responding to malfunctions or emergencies
- F24F11/38—Failure diagnosis
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/61—Control or safety arrangements characterised by user interfaces or communication using timers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
Abstract
The invention discloses a kind of control methods that the air-conditioning based on wind pressure freezes to remedy automatically afterwards, belong to airconditioning control field.The present invention obtains indoor set heat exchanger lower part each point and enters the wind wind pressure in real time, enters the wind wind pressure in real time according to lower part each point, is compared to the starting that control is remedied automatically with default wind pressure and exits, and records fault-signal.The present invention solves that existing anti-freeze protection mechanism logic is long, control variable is few, performance variable is more, detection accuracy is poor, is difficult effectively to determine the bulk freezing situation of indoor unit, localized ice build easily occurs and the inactive situation of protection mechanism.The present invention can also occur the ratio to fail by the failure area of fault message feedback monitoring anti-freeze protection mechanism, the failure frequency, with model air-conditioning, easily type to fail etc. occurs, show hiding problem, be conducive to the upgrading of air-conditioning technical iteration.
Description
Technical field
The invention belongs to air conditioner controlling technology field, in particular to a kind of air-conditioning freezes the control method remedied automatically afterwards.
Background technique
When air conditioner refrigeration or dehumidifying operation, the heat exchanger of indoor unit is in the lower state of temperature always, it is easy to produce
Raw freezeout, and then air conditioner refrigeration effect is influenced, keep its refrigerating capacity more and more weaker.
The embodiment of existing air conditioner anti-freeze is mounting temperature sensor on the coil pipe of machine indoors, so that air conditioner
Indoor unit coil pipe can be judged by the coil temperature of indoor unit freezes situation, to occur freezing now when indoor unit coil pipe
As when, air conditioner can in time be handled icing.But the control logic is longer, and control variable is few, master unit performance variable
More, detection accuracy is poor, is difficult effectively to be determined easily localized ice build occur and protect to the bulk freezing situation of indoor unit
The inactive situation of mechanism.
The prior art is controlled anti-freeze first is that protection mechanism logic is long, and control variable is few, and performance variable is more, detection accuracy
It is poor, it is difficult effectively to determine the bulk freezing situation of indoor unit easily localized ice build occur and protection mechanism is inactive
Situation；Second is that mechanism failure is regional, the failure frequency, occurs with model air-conditioning that the ratio to fail, type to fail etc. easily occur equal
Without feedback, problem is not easy to show, and is unfavorable for the upgrading of air-conditioning technical iteration.
Summary of the invention
In view of the above drawbacks of the prior art, technical problem to be solved by the invention is to provide one kind in freeze protection
The control method that determines failure or can be remedied automatically when breaking down.
To achieve the above object, the present invention provides a kind of controlling parties that the air-conditioning based on wind pressure freezes to remedy automatically afterwards
Method sequentially includes the following steps:
It obtains indoor set heat exchanger lower part each point and enters the wind wind pressure in real time；
Wind pressure is entered the wind in real time according to lower part each point, is compared to the starting that control is remedied automatically with default wind pressure and is exited,
And record fault-signal.Above technical scheme and entered by temperature detection failure after remedy difference automatically, examined by temperature
Survey is the temperature change by refrigerant when flowing through inlet and outlet to judge the ice condition of evaporator, after freezing generation, air quantity
Become smaller, evaporator heat exchange effect is decreased obviously, and refrigerant temperature obviously drops to lower temperature value.And this programme is turned according to fixed
The reduced pressure that fast lower air duct is formed judges the ice condition of evaporator, and when generation is freezed, return air amount becomes smaller, and negative pressure, which becomes larger, to be come
It carries out.
Preferably, press keeps current state after reforwarding when each air inlet wind pressure of acquisition is above the first default wind pressure
Row；
When each air inlet wind pressure of acquisition has any one wind pressure value lower than the first default wind pressure, interval t Time Continuous determines n
It is secondary: to enter the wind whether wind pressure is continuously lower than the first default wind pressure at same position；Wind pressure is entered the wind at same position to be discontinuously lower than
When the first default wind pressure, press keeps current state to continue to run；The continuous n times of wind pressure are entered the wind at same position lower than first when having
When default wind pressure, starting is remedied automatically and to record fault-signal primary；T > 0, the n are positive integer.
Preferably, the starting is remedied automatically and is sequentially included the following steps:
Press is out of service, and indoor fan is run with preset rotation speed, and four-way valve commutates after press shuts down the a1 time, to room
Inner blower preset rotation speed runs time, press after b1 and starts to start, and continues the c1 time to indoor unit injection high temperature refrigerant, completes knot
The change ice of ice part is handled；
A1 > 0, b1 > 0, c1 > 0.
Preferably, air-conditioning exits automatic benefit when each air inlet wind pressure is above the second default wind pressure and continues the d1 time
It rescues；D1 > 0.
Preferably, described exit is remedied and is sequentially included the following steps: automatically
Press is out of service, and premode operation, four-way valve deflecting after continuing the a2 time, to interior are remedied in indoor fan recovery
After the fan operation b2 time, press restarting be restored to remedy before operational mode.
A2 > 0, b2 > 0.
Preferably, being obtained by the elementary errors pressure sensor that inlet section liquid inlet and outlet position on the downside of machine heat exchanger indoors is arranged
Obtain the real-time wind pressure in heat exchanger lower part.
Further, further include the steps that sending fault-signal by communication module.
Technical solution provided by the invention can include the following benefits:
The present invention solve existing anti-freeze protection mechanism logic is long, control variable is few, performance variable is more, detection accuracy compared with
Difference is difficult effectively to determine the bulk freezing situation of indoor unit, localized ice build easily occurs and the inactive feelings of protection mechanism
Condition.Indoors elementary errors pressure sensor is arranged in the nearly liquid inlet and outlet position in machine heat exchanger downside inlet section (electric heating side) in the present invention, leads to
Monitoring air conditioner room unit heat exchanger lower part each point air inlet wind pressure is crossed, judges whether indoor set heat exchanger the mistake of anti-freeze mechanism occurs
Effect；After determining failure, anti-ice operation is completed in automatic remedy procedure starting.The present invention can also pass through fault message feedback monitoring
, there is with model air-conditioning the ratio to fail, the type to fail easily occurs the failure frequency in the failure area of anti-freeze protection mechanism
Deng, show hiding problem, be conducive to air-conditioning technical iteration upgrading.The present invention introduces evaporator progress ice using high-temperature exhaust air and grasps
Make, press, which needs to shut down certain time balance system pressure, when cold and hot conversion can just restart, it is long to change the ice starting time, but compare compared with
Electric heating is more energy saving.
It should be understood that above general description and following detailed description be only it is exemplary and explanatory, not
It can the limitation present invention.
Detailed description of the invention
The drawings herein are incorporated into the specification and forms part of this specification, and shows and meets implementation of the invention
Example, and be used to explain the principle of the present invention together with specification.
Fig. 1 is flow diagram shown according to an exemplary embodiment.
Specific embodiment
The following description and drawings fully show specific embodiments of the present invention, to enable those skilled in the art to
Practice them.Other embodiments may include structure, logic, it is electrical, process and other change.Embodiment
Only represent possible variation.Unless explicitly requested, otherwise individual components and functionality is optional, and the sequence operated can be with
Variation.The part of some embodiments and feature can be included in or replace part and the feature of other embodiments.This hair
The range of bright embodiment includes equivalent obtained by the entire scope of claims and all of claims
Object.Herein, each embodiment individually or can be indicated generally with term " invention ", and it is convenient that this is used for the purpose of,
And if in fact disclosing the invention more than one, the range for being not meant to automatically limit the application is any single invention
Or inventive concept.
As shown in Figure 1, a kind of air-conditioning freezes the control method remedied automatically afterwards, sequentially include the following steps:
When air conditioner refrigeration or dehumidification mode are run, obtains indoor set heat exchanger lower part each point and enter the wind wind pressure in real time；
Wind pressure is entered the wind in real time according to lower part each point, is compared to the starting that control is remedied automatically with default wind pressure and is exited,
And record feedback fault-signal.
In the present embodiment, by the elementary errors pressure sensing that inlet section liquid inlet and outlet position on the downside of machine heat exchanger indoors is arranged
Device obtains the real-time wind pressure in heat exchanger lower part.
When each air inlet wind pressure of acquisition is above the first default wind pressure, press keeps current state to continue to run；
When each air inlet wind pressure of acquisition has any one wind pressure value lower than the first default wind pressure, it is spaced continuous judgement 3 in 5 seconds
It is secondary: to enter the wind whether wind pressure is continuously lower than the first default wind pressure at same position；Wind pressure is entered the wind at same position to be discontinuously lower than
When the first default wind pressure, press keeps current state to continue to run；Wind pressure continuous 3 times are entered the wind at same position lower than first when having
When default wind pressure, starting is remedied automatically and to record fault-signal primary.
When each air inlet wind pressure is above the second default wind pressure and time for 20 seconds, air-conditioning exits to be remedied automatically.
The present embodiment starting is remedied automatically to be carried out in the following manner:
Press is out of service, and indoor fan is run with preset rotation speed, and four-way valve commutates after press is shut down 2 minutes, to room
Inner blower preset rotation speed is run after five minutes, and press starts to start, and continues to inject high temperature refrigerant to indoor unit in 1 minute, completes to freeze
Partial change ice processing.
Described exit is remedied and is sequentially included the following steps: automatically
Press is out of service, and premode operation is remedied in indoor fan recovery, continues four-way valve deflecting after five minutes, to interior
After fan operation 2 minutes, press restarting be restored to remedy before operational mode.And failure is sent by WIFI communication module
Signal is to monitoring host computer.
It should be understood that the flow chart and block diagram in the drawings show the system of multiple embodiments according to the present invention,
The architecture, function and operation in the cards of method and computer program product.In this regard, in flowchart or block diagram
Each box can represent a part of a module, section or code, a part packet of the module, section or code
Containing one or more executable instructions for implementing the specified logical function.It should also be noted that in some realities as replacement
In existing, function marked in the box can also occur in a different order than that indicated in the drawings.For example, two continuous sides
Frame can actually be basically executed in parallel, they can also be executed in the opposite order sometimes, this according to related function and
It is fixed.It is also noted that the group of each box in block diagram and or flow chart and the box in block diagram and or flow chart
It closes, can be realized with the dedicated hardware based system for executing defined function or movement, or specialized hardware can be used
Combination with computer instruction is realized.The invention is not limited to the process for being described above and being shown in the accompanying drawings and knots
Structure, and various modifications and changes may be made without departing from the scope thereof.The scope of the present invention only by the attached claims Lai
Limitation.
Claims (7)
1. a kind of air-conditioning based on wind pressure freezes the control method remedied automatically afterwards, it is characterised in that sequentially include the following steps:
It obtains indoor set heat exchanger and enters the wind wind pressure in real time；
According to real-time air inlet wind pressure, the starting that control is remedied automatically is compared to default wind pressure and is exited, and record failure letter
Number.
2. a kind of air-conditioning based on wind pressure as described in claim 1 freezes the control method remedied automatically afterwards, it is characterised in that:
When each air inlet wind pressure of acquisition is above the first default wind pressure, press keeps current state to continue to run；
When each air inlet wind pressure of acquisition has any one wind pressure value lower than the first default wind pressure, interval t Time Continuous determines n times:
Enter the wind whether wind pressure is continuously lower than the first default wind pressure at same position；Wind pressure is entered the wind at same position is discontinuously lower than first
When default wind pressure, press keeps current state to continue to run；When having, that the continuous n times of wind pressure are entered the wind at same position is default lower than first
When wind pressure, starting is remedied automatically and to record fault-signal primary；T > 0, the n are positive integer.
3. a kind of air-conditioning based on wind pressure as claimed in claim 1 or 2 freezes the control method remedied automatically afterwards, feature exists
In: the starting is remedied automatically to be sequentially included the following steps:
Press is out of service, and indoor fan is run with preset rotation speed, and four-way valve commutates after press shuts down the a1 time, to indoor wind
After machine preset rotation speed runs the b1 time, press starts to start, and continues the c1 time to indoor unit injection high temperature refrigerant；
A1 > 0, b1 > 0, c1 > 0.
4. a kind of air-conditioning based on wind pressure as described in claim 1 freezes the control method remedied automatically afterwards, it is characterised in that:
When each air inlet wind pressure is above the second default wind pressure and continues the d1 time, air-conditioning exits to be remedied automatically；D1 > 0.
5. a kind of air-conditioning based on wind pressure as described in claim 1 freezes the control method remedied automatically afterwards, it is characterised in that:
Described exit is remedied and is sequentially included the following steps: automatically
Press is out of service, and premode operation, four-way valve deflecting after continuing the a2 time, to indoor fan are remedied in indoor fan recovery
Run the b2 time after, press restarting be restored to remedy before operational mode；
A2 > 0, b2 > 0.
6. a kind of air-conditioning based on wind pressure as described in claim 1 freezes the control method remedied automatically afterwards, it is characterised in that:
It is real-time that elementary errors pressure sensor by the way that inlet section liquid inlet and outlet position on the downside of machine heat exchanger indoors is arranged obtains heat exchanger lower part
Wind pressure.
7. a kind of air-conditioning based on wind pressure as described in claim 1 freezes the control method remedied automatically afterwards, it is characterised in that:
Further include the steps that sending fault-signal by communication module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811051189.1A CN109210694A (en) | 2018-09-10 | 2018-09-10 | A kind of air-conditioning based on wind pressure freezes the control method remedied automatically afterwards |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811051189.1A CN109210694A (en) | 2018-09-10 | 2018-09-10 | A kind of air-conditioning based on wind pressure freezes the control method remedied automatically afterwards |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109210694A true CN109210694A (en) | 2019-01-15 |
Family
ID=64987967
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811051189.1A Pending CN109210694A (en) | 2018-09-10 | 2018-09-10 | A kind of air-conditioning based on wind pressure freezes the control method remedied automatically afterwards |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109210694A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08296883A (en) * | 1995-04-25 | 1996-11-12 | Hitachi Ltd | Air conditioner |
| CN101464033A (en) * | 2007-12-19 | 2009-06-24 | 海尔集团公司 | Antifreeze method and system for indoor unit of air conditioner |
| CN203454504U (en) * | 2013-07-12 | 2014-02-26 | 广东美的暖通设备有限公司 | Intelligent defrosting air conditioning unit |
| CN106765919A (en) * | 2016-12-08 | 2017-05-31 | 珠海格力电器股份有限公司 | A kind of control method of air-conditioning, device and air-conditioning |
| CN107101330A (en) * | 2017-04-26 | 2017-08-29 | 珠海格力电器股份有限公司 | A kind of air conditioning control method and device |
| CN107514746A (en) * | 2017-08-04 | 2017-12-26 | 合肥美的暖通设备有限公司 | Defrosting control method, device, air conditioner and computer-readable recording medium |
| CN105627524B (en) * | 2016-03-14 | 2018-06-01 | 广东美的制冷设备有限公司 | Air conditioner anti-freeze control method and air conditioner |
-
2018
- 2018-09-10 CN CN201811051189.1A patent/CN109210694A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08296883A (en) * | 1995-04-25 | 1996-11-12 | Hitachi Ltd | Air conditioner |
| CN101464033A (en) * | 2007-12-19 | 2009-06-24 | 海尔集团公司 | Antifreeze method and system for indoor unit of air conditioner |
| CN203454504U (en) * | 2013-07-12 | 2014-02-26 | 广东美的暖通设备有限公司 | Intelligent defrosting air conditioning unit |
| CN105627524B (en) * | 2016-03-14 | 2018-06-01 | 广东美的制冷设备有限公司 | Air conditioner anti-freeze control method and air conditioner |
| CN106765919A (en) * | 2016-12-08 | 2017-05-31 | 珠海格力电器股份有限公司 | A kind of control method of air-conditioning, device and air-conditioning |
| CN107101330A (en) * | 2017-04-26 | 2017-08-29 | 珠海格力电器股份有限公司 | A kind of air conditioning control method and device |
| CN107514746A (en) * | 2017-08-04 | 2017-12-26 | 合肥美的暖通设备有限公司 | Defrosting control method, device, air conditioner and computer-readable recording medium |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190115 |
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| RJ01 | Rejection of invention patent application after publication |