CN108386959B - Air conditioner and its defrosting control method and control device - Google Patents
Air conditioner and its defrosting control method and control device Download PDFInfo
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- CN108386959B CN108386959B CN201810008209.0A CN201810008209A CN108386959B CN 108386959 B CN108386959 B CN 108386959B CN 201810008209 A CN201810008209 A CN 201810008209A CN 108386959 B CN108386959 B CN 108386959B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/41—Defrosting; Preventing freezing
- F24F11/42—Defrosting; Preventing freezing of outdoor units
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/41—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
- F24F11/62—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
- F24F11/65—Electronic processing for selecting an operating mode
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- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses a kind of air conditioner and its defrosting control methods and control device, the described method includes: indoor unit judges whether to need to defrost according to the outdoor unit detection information that indoor unit operation information and/or the outdoor detection unit connecting with the indoor unit are transmitted to the indoor unit, when needing to defrost, the indoor unit enters the room machine Defrost operation mode, meanwhile the indoor unit control four-way valve commutates to Defrost operation mode；Outdoor unit judges whether the indoor unit enters the indoor unit Defrost operation mode according to outdoor unit operation information, and when determining that the indoor unit enters the indoor unit Defrost operation mode, the outdoor unit enters outdoor unit Defrost operation mode.With the application of the invention, can be realized the defrosting control that air conditioner in the case that connection is communicated is not present between indoor unit and outdoor unit.
Description
Technical field
The invention belongs to air-conditioning technique fields, specifically, being to be related to air conditioner and its defrosting control method and control
Device processed.
Background technique
Transducer air conditioning is widely used because of the advantages that temperature control precision is high, energy conservation.Existing transducer air conditioning is removed
Connection is arranged when frost control, between indoor unit and outdoor unit to be communicated, by the communication of the two, indoor unit and outdoor unit point
Not Zhi Hang defrosting process operation control, realize air conditioner Defrost operation.
For transducer air conditioning, if connection is not present between indoor unit and outdoor unit, for example, to simplify air conditioner knot
Structure eliminates the connection between indoor unit and outdoor unit, and indoor unit cannot be communicated with outdoor unit by connection, the feelings
The control that air conditioner how is realized under condition, the control especially to defrost, the prior art there is not yet solution.If cannot and
When, accurately defrost, then will affect air conditioner runnability.
Summary of the invention
The object of the present invention is to provide a kind of air conditioner defrosting control method and control devices, to realize indoor unit and outdoor
The defrosting control of air conditioner in the case where being communicated between machine there is no connection.
For achieving the above object, air-conditioner control method provided by the invention, which adopts the following technical solutions, gives reality
It is existing:
A kind of air conditioner defrosting control method, which is characterized in that the described method includes:
Indoor unit is transmitted to described according to indoor unit operation information and/or the outdoor detection unit connecting with the indoor unit
The outdoor unit detection information of indoor unit judges whether to need to defrost, and when needing to defrost, the indoor unit enters the room machine defrosting
Operational mode, meanwhile, the indoor unit control four-way valve commutates to Defrost operation mode；
Outdoor unit judges whether the indoor unit enters the indoor unit Defrost operation mode according to outdoor unit operation information,
When determining that the indoor unit enters the indoor unit Defrost operation mode, the outdoor unit enters outdoor unit Defrost operation mould
Formula.
Method as described above, the outdoor detection unit includes defrosting sensor, the outdoor unit detection information packet
Defrosting sensor detection information is included, the indoor unit is according to the indoor unit operation information and/or the outdoor unit detection information
Judge whether to need to defrost, specifically include: the indoor unit judges whether to need to remove according to the defrosting sensor detection information
Frost.
Alternatively, the indoor unit operation information includes inside and outside machine total working electric current, the indoor unit is according to the indoor unit
Operation information and/or the outdoor unit detection information judge whether to need to defrost, and specifically include: the indoor unit is according to described interior
Outer machine total working electric current and target total working electric current judge whether to need to defrost.
Method as described above, it is described that the outdoor unit according to outdoor unit operation information judges whether the indoor unit enters
Indoor unit Defrost operation mode, specifically includes: the outdoor unit obtains outdoor unit coil temperature, judges the outdoor unit coil pipe temperature
Whether degree meets the known outer machine coil temperature condition of defrosting, if satisfied, judging that the indoor unit defrosts into the indoor unit
Operational mode.
To realize aforementioned invention purpose, air conditioner controlling device provided by the invention adopts the following technical solutions to realize:
A kind of air conditioner defrosting control device, described device include:
Indoor unit defrosting judging unit, connect for indoor unit according to indoor unit operation information and/or with the indoor unit
Outdoor detection unit be transmitted to the outdoor unit detection information of the indoor unit and judge whether to need to defrost；
Indoor unit Defrost operation control unit, for controlling when indoor unit defrosting judging unit judgement needs to defrost
Indoor unit processed enters the room machine Defrost operation mode, meanwhile, control four-way valve commutates to Defrost operation mode；
Outdoor detection unit connect with indoor unit defrosting judging unit, for machine examination measurement information outside sensing chamber and passes
Transport to the indoor unit defrosting judging unit；
Outdoor unit defrosting judging unit, for judging whether the indoor unit enters the room machine according to outdoor unit operation information
Defrost operation mode；
Outdoor unit Defrost operation control unit, for determining that the indoor unit enters in outdoor unit defrosting judging unit
When the indoor unit Defrost operation mode, control outdoor unit enters outdoor unit Defrost operation mode.
Device as described above, the outdoor detection unit includes defrosting sensor, is passed for detecting and exporting defrosting
Sensor detection information, as the outdoor unit detection information；
The defrosting sensor detection information that the indoor unit defrosting judging unit is exported according to the defrosting sensor
Judge whether to need to defrost.
Alternatively, described device further include:
Inside and outside machine total working current detecting unit, for detecting and exporting inside and outside machine total working electric current；
The indoor unit defrosting judging unit is described inside and outside according to the inside and outside machine total working current detecting unit output
Machine total working electric current and target total working electric current judge whether to need to defrost.
Device as described above, described device further include:
Outdoor unit coil temperature detection unit, for detecting and exporting outdoor unit coil temperature；
The outdoor unit defrosting judging unit obtains the outdoor unit of the outdoor unit coil temperature detection unit output
Coil temperature, judges whether the outdoor unit coil temperature meets the known outer machine coil temperature condition of defrosting, if satisfied, judgement
The indoor unit enters the indoor unit Defrost operation mode.
In addition, the invention also provides a kind of air conditioner, including indoor unit and outdoor unit, it further include having above-mentioned air conditioner
Defrost control device.
Compared with prior art, the controlling party the advantages and positive effects of the present invention are: air conditioner provided by the invention defrosts
Method and control device, indoor unit are transmitted to room according to indoor unit operation information and/or the outdoor detection unit connecting with indoor unit
The outdoor unit detection information of interior machine judges whether to need to defrost, and when needing to defrost, indoor unit enters the room machine Defrost operation mould
Formula, while controlling four-way valve and commutating to Defrost operation mode；Outdoor unit according to outdoor unit operation information judge indoor unit whether into
Enter indoor unit Defrost operation mode, when determining that indoor unit enters the room machine Defrost operation mode, outdoor unit enters outdoor unit and removes
White operational mode；Using method and apparatus provided by the invention, by indoor unit as whether executing the judgement main body of Defrost operation
With control main body, outdoor unit carries out defrosting collaboration, also can be real without being communicated between indoor unit and outdoor unit by connection
Defrost operation when defrosting is needed under existing air-conditioning system heating operation state, is not present between indoor unit and outdoor unit to realize
The defrosting control of air conditioner in the case that connection is communicated.
After a specific embodiment of the invention is read in conjunction with the figure, the other features and advantages of the invention will become more clear
Chu.
Detailed description of the invention
Fig. 1 is the flow chart based on the air condition of that present invention defrosting control method one embodiment；
Fig. 2 is the structural block diagram based on the air condition of that present invention defrosting control device one embodiment.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, below with reference to drawings and examples,
Invention is further described in detail.
Referring to Figure 1, which show the flow chart based on the air condition of that present invention defrosting control method one embodiment.In
In the embodiment, not set connection between indoor unit and outdoor unit not can be carried out the communication between inside and outside machine by connection.
Outdoor machine part structure can connect between indoor unit, comprising: the outdoor detection unit in outdoor unit is connect with indoor unit, can
To transmit outdoor unit detection information detected by connecting line to indoor unit；Four-way valve in outdoor unit is connect with indoor unit,
By the commutation of indoor unit control four-way valve.For this kind of air conditioner, realized under heating mode using the method that following step is constituted
Defrosting control:
Step 11: indoor unit is transmitted to according to indoor unit operation information and/or the outdoor detection unit connecting with indoor unit
The outdoor unit detection information of indoor unit judges whether to need to defrost, and when needing to defrost, indoor unit enters the room machine Defrost operation
Mode, meanwhile, indoor unit control four-way valve commutates to Defrost operation mode.
In this embodiment, indoor unit as whether carry out Defrost operation judgement main body and control main body, heating transport
During row, indoor unit will persistently obtain indoor unit operation information, alternatively, indoor unit persistently obtains the outdoor connecting with indoor unit
Detection unit is transmitted to the outdoor unit detection information of indoor unit, and outdoor unit detection information is relevant one in outdoor unit operational process
A little information.Indoor unit judges whether to need by the analysis to indoor unit operation information and/or the analysis to outdoor unit detection information
It defrosts.If it is determined that need to defrost, then, indoor unit will enter the room machine Defrost operation mode.So-called indoor unit defrosting fortune
Row mode is the operational mode that indoor unit should execute in Defrost operation, and including but not limited to indoor fan stops.Meanwhile
Indoor unit also commutates control four-way valve to Defrost operation mode.Four-way valve commutates to Defrost operation mode, indoor heat exchanger
It is used as evaporator, outdoor heat exchanger is used as condenser, and outdoor condenser discharges heat, carries out defrost, and cooperation is indoor
Evaporator completes defrosting operation.
Indoor unit is transmitted to indoor unit according to indoor unit operation information and/or the outdoor detection unit connecting with indoor unit
Outdoor unit detection information judges whether to need to defrost, specifically indoor unit according to indoor unit operation information, in conjunction with known
The condition that should meet into defrosting indoor unit operation information is to determine whether need to defrost；Alternatively, being believed according to outdoor machine testing
Breath, in conjunction with the known condition that outdoor detection information should meet of defrosting that enters to determine whether needing to defrost.Specifically, can adopt
It is realized with various ways.
As one of embodiment, outdoor detection unit includes defrosting sensor, and defrosting sensor and indoor unit connect
It connects；Outdoor unit detection information includes defrosting sensor detection information.Indoor unit is according to indoor unit operation information and/or outdoor machine examination
Measurement information judges whether to need to defrost, and specifically includes: indoor unit judges whether to need to defrost according to defrosting sensor detection information.
For example, defrosting sensor detection information is outdoor unit coil temperature Te, the condition that should meet into defrosting outdoor unit detection information
It is outdoor unit coil temperature no more than outdoor solidifying dew-point temperature Tes.So, indoor unit get outdoor unit coil temperature Te it
Afterwards, the current outdoor condensation point of acquisition can be calculated according to outdoor environment temperature by it being coagulated dew-point temperature Tes(with current outdoor
Temperature Tes) it makes comparisons.If Te≤Tes, determine that indoor unit needs to defrost.
In some other embodiment, indoor unit judges whether to need to defrost according to indoor unit operation information.Specifically, room
Interior machine operation information includes inside and outside machine total working electric current, and indoor unit judges whether to need to defrost according to indoor unit operation information, tool
Body includes: that indoor unit judges whether to need to defrost according to inside and outside machine total working electric current and target total working electric current.
For example, indoors in machine heating process, indoor unit obtains inside and outside machine total working electricity according to setting sample frequency
Stream can obtain the inside and outside machine total working electric current by the electric current of detection air conditioner power supply output.Then, by the inside and outside machine
Total working electric current is made comparisons with target operation electric current.Wherein, target operation electric current be it is known, be stored in indoor unit memory
Current value, be to reflect an air conditioner target current value whether needing to defrost.If outdoor unit frosting, compressor operation is negative
Lotus reduces, and in reflection to inside and outside machine total working electric current, entire total working electric current is also reduced, if inside and outside machine total working current reduction
To target operation electric current, it is determined that need to be implemented defrosting operation.
In some other embodiment, indoor unit can also be according to defrosting sensor detection information and inside and outside machine total working electricity
It flows the two information and is made whether the judgement for needing to defrost jointly.
Step 12: outdoor unit judges whether indoor unit enters the room machine Defrost operation mode according to outdoor unit operation information,
When determining that indoor unit enters the room machine Defrost operation mode, outdoor unit enters outdoor unit Defrost operation mode.
Air conditioner realizes Defrost operation, not only needs indoor unit to execute indoor unit Defrost operation mode, it is also desirable to outdoor unit
Outdoor unit Defrost operation mode is executed, the operation of indoor unit is cooperateed with, completes the defrosting control of system.Due to indoor unit and outdoor unit
Between not can be carried out communication, and judgement main body and control main body of the indoor unit as Defrost operation, then, outdoor unit needs basis
The Defrost operation of indoor unit is cooperateed with, and the Defrost operation of system is completed.Specifically, outdoor unit will run according to outdoor unit and believe
Breath judges whether indoor unit enters indoor unit Defrost operation mode, and is determining that indoor unit enters the room machine Defrost operation mode
When, outdoor unit enters outdoor unit Defrost operation mode.Wherein, outdoor unit Defrost operation mode is the outdoor unit in Defrost operation
The operational mode that should be executed, including but not limited to compressor are according to setting stop frequency operation.
Indoor unit enters after Defrost operation mode, and four-way valve also commutates to Defrost operation mode in addition, operational mode
Change, it will influence outdoor unit operation information.By preset and store indoor unit enter it is corresponding after Defrost operation mode
Outdoor unit operation information, in practical heating operation, outdoor unit can according to setting sample frequency obtain outdoor unit transport in real time
Row information, and corresponding outdoor unit operation information after entering Defrost operation mode with known indoor unit is compared.If
Outdoor unit real-time traffic information and indoor unit enter corresponding outdoor unit operation information after Defrost operation mode and match, then may be used
Determine that indoor unit enters Defrost operation mode.After judging that indoor unit enters Defrost operation mode, outdoor unit will also turn
Enter outdoor unit Defrost operation mode, carries out defrosting operation to cooperate with indoor unit.
As a preferred embodiment, outdoor unit judges whether indoor unit enters the room according to outdoor unit operation information
Machine Defrost operation mode, specifically includes: outdoor unit obtains outdoor unit coil temperature, judges whether outdoor unit coil temperature meets
The outer machine coil temperature condition of the defrosting known, if satisfied, judging that indoor unit enters the room machine Defrost operation mode.Specifically, such as
Fruit indoor unit enters the room machine Defrost operation mode, and four-way valve also commutates to Defrost operation mode, and outdoor unit, outdoor unit are arrived in reflection
Coil temperature will appear decline, and be changing rule corresponding with Defrost operation occur.It is possible to by outdoor unit coil pipe temperature
The changing rule of degree is as the outer machine coil temperature condition storage that defrosts, if it is determined that outdoor unit coil temperature is met outside the defrosting
Machine coil temperature condition, it is determined that indoor unit enters indoor unit Defrost operation mode.
It should be noted that judging whether indoor unit enters the room machine defrosting according to outdoor unit operation information for outdoor unit
Operational mode can also be using others other than being judged outdoor unit coil temperature as outdoor unit operation information
For outdoor unit operation information as judgment basis, other all possible embodiments belong to the claimed range of the present invention.
Using the method for above-described embodiment, by indoor unit as whether executing the judgement main body of Defrost operation and control is led
Body, outdoor unit carry out defrosting collaboration, without being communicated between indoor unit and outdoor unit by connection, are also able to achieve air-conditioning system
Needed under the hot operating status of controlling defrosting when Defrost operation, thus realize between indoor unit and outdoor unit there is no connection into
The defrosting control of air conditioner in the case where row communication.
Fig. 2 is referred to, the figure shows the structural block diagrams based on the air condition of that present invention defrosting control device one embodiment.
In this embodiment, not set connection between indoor unit and outdoor unit not can be carried out leading to by connection between inside and outside machine
News.Outdoor machine part structure can connect between indoor unit, comprising: outdoor detection unit 23 and indoor unit in outdoor unit connect
It connects, outdoor unit detection information detected can be transmitted by connecting line to indoor unit；Four-way valve 24 and interior in outdoor unit
Machine connection, by the commutation of indoor unit control four-way valve.For this kind of air conditioner, heating is realized using the device with following structures
Defrosting control under mode.
Specifically, the control device of the embodiment include structural unit, the connection relationship between structural unit and each
The function of structural unit is as follows:
Indoor unit defrosting judging unit 21, connect for indoor unit according to indoor unit operation information and/or with indoor unit
The outdoor unit detection information that outdoor detection unit 23 is transmitted to indoor unit judges whether to need to defrost.
Indoor unit Defrost operation control unit 22, when needing to defrost for the defrosting judgement of judging unit 21 of machine indoors, control
Indoor unit processed enters the room machine Defrost operation mode, meanwhile, control four-way valve 24 commutation to Defrost operation mode.
Outdoor detection unit 23 connect with indoor unit defrosting judging unit 21, for machine examination measurement information outside sensing chamber and passes
Transport to indoor unit defrosting judging unit 21.
Outdoor unit defrosting judging unit 25, for judging whether the machine of entering the room removes indoor unit according to outdoor unit operation information
White operational mode.
Outdoor unit Defrost operation control unit 26, for determining that indoor unit enters the room in outdoor unit defrosting judging unit 25
When machine Defrost operation mode, control outdoor unit enters outdoor unit Defrost operation mode.
Preferably, outdoor detection unit 23 includes defrosting sensor, is passed for detecting and exporting defrosting
Sensor detection information, as outdoor unit detection information.In this case, indoor unit defrosting judging unit 21 will be sensed according to defrosting
The defrosting sensor detection information of device output judges whether to need to defrost.
Device can also include outdoor unit coil temperature detection unit, for detecting and exporting outdoor unit coil temperature.Room
Outer machine defrosting judging unit 25 obtains the outdoor unit coil temperature of outdoor unit coil temperature detection unit output, judges outdoor unit disk
Whether tube temperature degree meets the known outer machine coil temperature condition of defrosting, if satisfied, judging that indoor unit enters the room machine Defrost operation
Mode.
In some other embodiment, device can also include inside and outside machine total working current detecting unit, for detecting simultaneously
Export inside and outside machine total working electric current.In this case, indoor unit defrosts, judging unit 21 is according to inside and outside machine total working current detecting list
The inside and outside machine total working electric current and target total working electric current of member output judge whether to need to defrost.
In other preferred embodiment, device can also include defrosting sensor and inside and outside machine total working electric current simultaneously
Detection unit.So, outdoor unit defrosting judging unit 21 will be according to defrosting sensor detection information and inside and outside machine total working electric current
It is made whether the judgement for needing to defrost jointly.
Defrosting control device with above-mentioned each structural unit is applied in the air conditioner with indoor unit and outdoor unit, fortune
The corresponding software program of row carries out defrosting control according to control method above-mentioned, realizes and be not present between indoor unit and outdoor unit
The Defrost operation of air conditioner in the case that connection is communicated.More specifically defrosting control process can refer to above-mentioned defrosting control
The description of method processed.
The above embodiments are merely illustrative of the technical solutions of the present invention, rather than is limited；Although referring to aforementioned reality
Applying example, invention is explained in detail, for those of ordinary skill in the art, still can be to aforementioned implementation
Technical solution documented by example is modified or equivalent replacement of some of the technical features；And these are modified or replace
It changes, the spirit and scope for claimed technical solution of the invention that it does not separate the essence of the corresponding technical solution.
Claims (9)
1. a kind of air conditioner defrosting control method, which is characterized in that not set communication between the indoor unit and outdoor unit of air conditioner
Line not can be carried out the communication between inside and outside machine by connection；The described method includes:
Indoor unit is transmitted to the interior according to indoor unit operation information and/or the outdoor detection unit connecting with the indoor unit
The outdoor unit detection information of machine judges whether to need to defrost, and when needing to defrost, the indoor unit enters the room machine Defrost operation
Mode, meanwhile, the indoor unit control four-way valve commutates to Defrost operation mode；
Outdoor unit judges whether the indoor unit enters the indoor unit Defrost operation mode according to outdoor unit operation information, true
When the fixed indoor unit enters the indoor unit Defrost operation mode, the outdoor unit enters outdoor unit Defrost operation mode.
2. the method according to claim 1, wherein the outdoor detection unit includes defrosting sensor, institute
Stating outdoor unit detection information includes defrosting sensor detection information, the indoor unit according to the indoor unit operation information and/or
The outdoor unit detection information judges whether to need to defrost, and specifically includes: the indoor unit is detected according to the defrosting sensor
Information judges whether to need to defrost.
3. the method according to claim 1, wherein the indoor unit operation information includes inside and outside machine total working electricity
Stream, the indoor unit judge whether to need to defrost according to the indoor unit operation information and/or the outdoor unit detection information, have
Body includes: that the indoor unit judges whether to need to defrost according to the inside and outside machine total working electric current and target total working electric current.
4. according to the method in any one of claims 1 to 3, which is characterized in that the outdoor unit is run according to outdoor unit
Information judges whether the indoor unit enters the indoor unit Defrost operation mode, specifically includes: the outdoor unit obtains outdoor
Machine coil temperature, judges whether the outdoor unit coil temperature meets the known outer machine coil temperature condition of defrosting, if satisfied, sentencing
The indoor unit that breaks enters the indoor unit Defrost operation mode.
A kind of control device 5. air conditioner defrosts, which is characterized in that not set communication between the indoor unit and outdoor unit of air conditioner
Line not can be carried out the communication between inside and outside machine by connection；Described device includes:
Indoor unit defrosting judging unit, for indoor unit according to indoor unit operation information and/or the room being connect with the indoor unit
The outdoor unit detection information that outer detection unit is transmitted to the indoor unit judges whether to need to defrost；
Indoor unit Defrost operation control unit, for the indoor unit defrosting judging unit judgement need to defrost when, control room
Interior machine enters the room machine Defrost operation mode, meanwhile, control four-way valve commutates to Defrost operation mode；
Outdoor detection unit connect with indoor unit defrosting judging unit, for machine examination measurement information outside sensing chamber and is transmitted to
The indoor unit defrosting judging unit；
Outdoor unit defrosting judging unit, for judging whether the indoor unit enters the room machine defrosting according to outdoor unit operation information
Operational mode；
Outdoor unit Defrost operation control unit, for determining described in the indoor unit entrance in outdoor unit defrosting judging unit
When indoor unit Defrost operation mode, control outdoor unit enters outdoor unit Defrost operation mode.
6. device according to claim 5, which is characterized in that the outdoor detection unit includes defrosting sensor, is used
In detecting and exporting defrosting sensor detection information, as the outdoor unit detection information；
The indoor unit defrosting judging unit judges according to the defrosting sensor detection information of the defrosting sensor output
Whether need to defrost.
7. device according to claim 5, which is characterized in that described device further include:
Inside and outside machine total working current detecting unit, for detecting and exporting inside and outside machine total working electric current；
The indoor unit defrosting judging unit is total according to the inside and outside machine of the inside and outside machine total working current detecting unit output
Operating current and target total working electric current judge whether to need to defrost.
8. device according to any one of claims 5 to 7, which is characterized in that described device further include:
Outdoor unit coil temperature detection unit, for detecting and exporting outdoor unit coil temperature；
The outdoor unit defrosting judging unit obtains the outdoor unit coil pipe of the outdoor unit coil temperature detection unit output
Temperature, judges whether the outdoor unit coil temperature meets the known outer machine coil temperature condition of defrosting, if satisfied, described in judgement
Indoor unit enters the indoor unit Defrost operation mode.
9. a kind of air conditioner, including indoor unit and outdoor unit, which is characterized in that do not set between the indoor unit and the outdoor unit
Connection is set, not can be carried out the communication between inside and outside machine by connection；The air conditioner further includes having the claims 5 to 8
Any one of described in air conditioner defrost control device.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810008209.0A CN108386959B (en) | 2018-01-04 | 2018-01-04 | Air conditioner and its defrosting control method and control device |
| PCT/CN2018/125062 WO2019134597A1 (en) | 2018-01-04 | 2018-12-28 | Air conditioner, and defrosting control method and device therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810008209.0A CN108386959B (en) | 2018-01-04 | 2018-01-04 | Air conditioner and its defrosting control method and control device |
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| Publication Number | Publication Date |
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| CN108386959A CN108386959A (en) | 2018-08-10 |
| CN108386959B true CN108386959B (en) | 2019-12-03 |
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| CN201810008209.0A Active CN108386959B (en) | 2018-01-04 | 2018-01-04 | Air conditioner and its defrosting control method and control device |
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| WO (1) | WO2019134597A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108386959B (en) * | 2018-01-04 | 2019-12-03 | 青岛海尔空调器有限总公司 | Air conditioner and its defrosting control method and control device |
| CN111692710B (en) * | 2020-06-24 | 2021-09-21 | 宁波奥克斯电气股份有限公司 | Control method for preventing freezing and defrosting and air conditioner |
| CN114484769B (en) * | 2022-02-17 | 2023-08-11 | 安徽奥克斯智能电气有限公司 | Air conditioner control method and device and air conditioner |
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| CN104214902B (en) * | 2014-09-25 | 2016-09-21 | 中国扬子集团滁州扬子空调器有限公司 | The off-premises station lost contact control method of transducer air conditioning |
| CN105588223B (en) * | 2015-08-31 | 2018-05-18 | 青岛海信日立空调系统有限公司 | A kind of outdoor unit, defrosting control system and method |
| CN108386959B (en) * | 2018-01-04 | 2019-12-03 | 青岛海尔空调器有限总公司 | Air conditioner and its defrosting control method and control device |
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2018
- 2018-01-04 CN CN201810008209.0A patent/CN108386959B/en active Active
- 2018-12-28 WO PCT/CN2018/125062 patent/WO2019134597A1/en active Application Filing
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| Publication number | Publication date |
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| WO2019134597A1 (en) | 2019-07-11 |
| CN108386959A (en) | 2018-08-10 |
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