CN108317665A - Air conditioner defrosting control method and control device - Google Patents
Air conditioner defrosting control method and control device Download PDFInfo
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- CN108317665A CN108317665A CN201810008208.6A CN201810008208A CN108317665A CN 108317665 A CN108317665 A CN 108317665A CN 201810008208 A CN201810008208 A CN 201810008208A CN 108317665 A CN108317665 A CN 108317665A
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Abstract
The invention discloses a kind of air conditioner defrosting control method and control device, the method includes：Outdoor unit judges whether to need to defrost according to outdoor unit operation information, and when needing defrosting, the outdoor unit enters outdoor unit Defrost operation pattern；Indoor unit judges whether the outdoor unit enters the outdoor unit Defrost operation pattern according to indoor unit operation information, and when determining that the outdoor unit enters the outdoor unit Defrost operation pattern, the indoor unit gets in machine Defrost operation pattern.With the application of the invention, the defrosting control that air conditioner in the case that connection is communicated is not present between indoor unit and outdoor unit can be realized.
Description
Technical field
The invention belongs to air-conditioning technique fields, specifically, to be the control for being related to air conditioner be more specifically
It is related to air conditioner defrosting control method and control device.
Background technology
Transducer air conditioning is widely used because of the advantages that temperature control precision is high, energy saving.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 can influence air conditioner runnability.
Invention content
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 of being communicated there is no connection between machine.
For achieving the above object, air-conditioner control method provided by the invention gives reality using following technical proposals
It is existing：
A kind of air conditioner defrosting control method, the method includes：
Outdoor unit judges whether to need to defrost according to outdoor unit operation information, and when needing defrosting, the outdoor unit enters outdoor
Machine Defrost operation pattern；
Indoor unit judges whether the outdoor unit enters the outdoor unit Defrost operation pattern according to indoor unit operation information, true
When the fixed outdoor unit enters the outdoor unit Defrost operation pattern, the indoor unit gets in machine Defrost operation pattern.
Method as described above, the outdoor unit operation information include defrosting sensor detection information, the outdoor unit root
Judge whether to need to defrost according to outdoor unit operation information, specifically include：The outdoor unit is detected according to the defrosting sensor to be believed
Breath judges whether to need to defrost.
Alternatively, method as described above, the outdoor unit operation information includes compressor operating temperature venting one's pent-up feelings, the outdoor
Machine judges whether to need to defrost according to outdoor unit operation information, specifically includes：The outdoor unit is spat according to the compressor operating
Temperature degree and target temperature venting one's pent-up feelings judge whether to need to defrost.
Or the outdoor unit operation information includes compressor operating operating current, the outdoor unit is according to outdoor unit
Operation information judges whether to need to defrost, and specifically includes：The outdoor unit is according to the compressor operating operating current and target
Operating current judges whether to need to defrost.
Whether method as described above, the indoor unit judge the outdoor unit described according to indoor unit operation information
Outdoor unit Defrost operation pattern, specifically includes：The indoor unit obtains indoor unit coil temperature, judges the indoor unit coil pipe temperature
Whether degree meets machine coil temperature condition in known defrosting, if satisfied, judging that the outdoor unit defrosts into the outdoor unit
Operational mode.
To realize that aforementioned invention purpose, air conditioner controlling device provided by the invention are realized using following technical proposals：
A kind of air conditioner defrosting control device, described device include：
Outdoor unit defrosting judging unit, judges whether to need to defrost for outdoor unit according to outdoor unit operation information；
Outdoor unit Defrost operation control unit, for the outdoor unit defrosting judging unit judgement need defrosting when, control room
Outer machine enters outdoor unit Defrost operation pattern；
Indoor unit defrosting judging unit, for judging whether the outdoor unit enters outdoor unit and defrost according to indoor unit operation information
Operational mode；
Indoor unit Defrost operation control unit, for judging described in the outdoor unit entrance in indoor unit defrosting judging unit
When outdoor unit Defrost operation pattern, control indoor unit gets in machine Defrost operation pattern.
Device as described above, described device further include：
Defrost sensor, for detecting and exporting defrosting sensor detection information；
The outdoor unit defrosting judging unit judges according to the defrosting sensor detection information of the defrosting sensor output
Whether need to defrost.
Alternatively, device as described above, described device further include：
Compressor is felt elated and exultant temperature detecting unit, is felt elated and exultant temperature for detecting and exporting compressor operating；
The compressor operating that the outdoor unit defrosting judging unit is exported according to compressor temperature detecting unit venting one's pent-up feelings
Temperature of feeling elated and exultant and target temperature venting one's pent-up feelings judge whether to need to defrost.
Or device as described above, described device further include：
Compressor operating current detecting unit, for detecting and exporting compressor operating operating current；
The compressor operating that the outdoor unit defrosting judging unit is exported according to the compressor operating current detecting unit
Operating current and target operation electric current judge whether to need to defrost.
Device as described above, described device further include：
Indoor unit coil temperature detection unit, for detecting and exporting indoor unit coil temperature；
The indoor unit defrosting judging unit obtains the indoor unit coil pipe of the indoor unit coil temperature detection unit output
Temperature, judges whether the indoor unit coil temperature meets machine coil temperature condition in known defrosting, if satisfied, described in judging
Outdoor unit enters the outdoor unit Defrost operation pattern.
Compared with prior art, the advantages and positive effects of the present invention are：Air conditioner defrosting controlling party provided by the invention
Method and control device, outdoor unit judge whether to need to defrost according to outdoor unit operation information, and when needing defrosting, outdoor unit enters
Outdoor unit Defrost operation pattern；Indoor unit judges whether outdoor unit enters outdoor unit Defrost operation mould according to indoor unit operation information
Formula, when determining that outdoor unit enters outdoor unit Defrost operation pattern, indoor unit gets in machine Defrost operation pattern；Using this hair
The method and apparatus of bright offer, by outdoor unit as whether the control main body of Defrost operation is executed, indoor unit carries out defrosting collaboration,
Without being communicated between indoor unit and outdoor unit, defrosting fortune when needing defrosting under air-conditioning system heating operation state can be also realized
Row, to realize the defrosting control that air conditioner in the case that connection is communicated is not present between indoor unit and outdoor unit.
After the specific implementation mode of the present invention is read in conjunction with the figure, the other features and advantages of the invention will become more clear
Chu.
Description of the drawings
Fig. 1 is the flow chart based on air conditioner defrosting control method one embodiment of the present invention；
Fig. 2 is the structure diagram based on air conditioner of the present invention defrosting control device one embodiment.
Specific implementation mode
In order to make the purpose , technical scheme and advantage of the present invention be clearer, below with reference to drawings and examples,
Invention is further described in detail.
Fig. 1 is referred to, which show the flow chart based on air conditioner defrosting control method one embodiment of the present invention.
In the embodiment, connection is not set between indoor unit and outdoor unit, the communication between inside and outside machine cannot be carried out.For this kind of sky
Device is adjusted, realizes that the defrosting under heating mode controls using the method that following step is constituted：
Step 11：Outdoor unit judges whether to need to defrost according to outdoor unit operation information, and when needing defrosting, outdoor unit is into entering the room
Outer machine Defrost operation pattern.
In this embodiment, outdoor unit as whether carry out Defrost operation judgement main body and control main body, heating transport
During row, whether outdoor unit will persistently obtain outdoor unit operation information, needed by the analytical judgment to outdoor unit operation information
It defrosts.If it is determined that need to defrost, then, outdoor unit will enter outdoor unit Defrost operation pattern.So-called outdoor unit defrosting fortune
Row pattern is the operational mode that outdoor unit should execute in Defrost operation, including but not limited to four-way valve commutation, outdoor heat exchange
Device is used as condenser, discharges heat, executes outdoor unit defrosting operation.
Outdoor unit judges whether to need to defrost according to outdoor unit operation information, and specifically outdoor unit is transported according to outdoor unit
Row information, in conjunction with the known condition that should meet of defrosting outdoor unit operation information that enters to determine whether needing to defrost.According to room
Outer machine operation information judges whether to need to defrost, and various ways specifically may be used to realize.
As one of which embodiment, outdoor unit operation information includes defrosting sensor detection information；Outdoor unit is according to room
Outer machine operation information judges whether to need to defrost, and specifically includes：Outdoor unit judges whether need according to defrosting sensor detection information
It defrosts.For example, defrosting sensor detection information is outdoor unit coil temperature Te, should be met into defrosting outdoor unit operation information
Condition be outdoor unit coil temperature no more than outdoor solidifying dew-point temperature Tes.So, outdoor unit is getting outdoor unit coil pipe temperature
It spends after Te, itself and current outdoor is coagulated into dew-point temperature Tes（It can be calculated according to outdoor environment temperature and obtain current outdoor
Solidifying dew-point temperature Tes）It makes comparisons.If Te≤Tes, determine that outdoor unit needs to defrost.
In some other embodiment, outdoor unit operation information can also be to include compressor operating temperature venting one's pent-up feelings；That
, outdoor unit judges whether to need to defrost, specifically include according to outdoor unit operation information：Outdoor unit is felt elated and exultant according to compressor operating
Temperature and target temperature venting one's pent-up feelings judge whether to need to defrost.For example, in outdoor unit heating process, outdoor unit is according to setting
Sample frequency obtains compressor operating temperature venting one's pent-up feelings, calculates the difference of compressor operating temperature venting one's pent-up feelings and target temperature venting one's pent-up feelings.
Wherein, target feel elated and exultant temperature be known, the temperature value that is stored in outdoor unit memory, whether reflection outdoor unit need to defrost
A target temperature.If the difference calculated has reached setting temperature difference, for example, temperature difference is set as 20 DEG C, is calculated
Difference out is at 20 DEG C or more, then it is assumed that and it is that compressor operating is caused to feel elated and exultant temperature decline quickly because of outdoor unit frosting,
And then determine that outdoor unit needs to defrost.
In other embodiments, outdoor unit operation information can also include compressor operating operating current；That door,
Outdoor unit judges whether to need to defrost according to outdoor unit operation information, specifically includes：Outdoor unit works electric according to compressor operating
Stream and target operation electric current judge whether to need to defrost.For example, in outdoor unit heating process, outdoor unit is adopted according to setting
Sample frequency acquisition compressor operating operating current makes comparisons the electric current with target operation electric current.Wherein, target operation electric current is
Current value that is known, being stored in outdoor unit memory, is whether reflection outdoor unit needs defrost target current value.
If outdoor unit frosting, compressor operating load reduction, operation operating current also reduces, if compressor operating operating current
It is reduced to target operation electric current or less, it is determined that outdoor unit needs to defrost.
In some other embodiment, outdoor unit operation information can also include defrosting sensor detection information, compression
Any two in machine operation temperature and compressor operating operating current venting one's pent-up feelings is either based on two or three outdoor units for three
Operation information is made whether the judgement for needing to defrost jointly.
Step 12：Indoor unit judges whether outdoor unit enters outdoor unit Defrost operation pattern according to indoor unit operation information,
When determining that outdoor unit enters outdoor unit Defrost operation pattern, indoor unit gets in machine Defrost operation pattern.
Air conditioner realizes Defrost operation, not only needs outdoor unit to execute outdoor unit Defrost operation pattern, it is also desirable to indoor unit
Indoor unit Defrost operation pattern is executed, the operation of outdoor unit is cooperateed with, completes the defrosting control of system.Due to indoor unit and outdoor unit
Between cannot be communicated, and outdoor unit as Defrost operation judgement main body and control main body, then, indoor unit needs basis
The Defrost operation of outdoor unit is cooperateed with, and the Defrost operation of system is completed.Specifically, indoor unit will run according to indoor unit and believe
Breath judges whether outdoor unit enters outdoor unit Defrost operation pattern, and is determining that outdoor unit enters outdoor unit Defrost operation pattern
When, indoor unit gets in machine Defrost operation pattern.Wherein, indoor unit Defrost operation pattern is the indoor unit in Defrost operation
The operational mode that should be executed, including but not limited to indoor fan stop, indoor heat exchanger is used as evaporator, and as cold
The outdoor heat exchanger of condenser coordinates, and completes outdoor unit defrosting operation.
Outdoor unit enters after Defrost operation pattern, can influence indoor unit operation information.By pre-setting simultaneously locker room
Outer machine enters corresponding indoor unit operation information after Defrost operation pattern, and in practical heating operation, indoor unit can be according to
It sets sample frequency and obtains indoor unit real-time traffic information, and enter with known outdoor unit corresponding after Defrost operation pattern
Indoor unit operation information is compared, if indoor unit real-time traffic information and outdoor unit enter it is corresponding after Defrost operation pattern
Indoor unit operation information match, then can determine that outdoor unit enters Defrost operation pattern.It is removed judging that outdoor unit enters
After white operational mode, indoor unit will also be transferred to indoor unit Defrost operation pattern, and defrosting operation is carried out to be cooperateed with outdoor unit.
As a preferred embodiment, indoor unit judges whether outdoor unit enters outdoor according to indoor unit operation information
Machine Defrost operation pattern, specifically includes：Indoor unit obtains indoor unit coil temperature, judges whether indoor unit coil temperature meets
Machine coil temperature condition in the defrosting known, if satisfied, judging that outdoor unit enters outdoor unit Defrost operation pattern.Specifically, such as
Fruit outdoor unit enters outdoor unit Defrost operation pattern, and outdoor unit is first to shut down 3min, is protected；Then, outdoor unit can be according to
Start operation 1min, the stop frequency of shutdown 1min carries out defrosting operation.This method of operation of outdoor unit, reflection to interior
Machine, indoor unit coil temperature, which will appear in corresponding 3min, to be continued to decline, then according to rising in 1min, decline in 1min again
Changing rule.It is possible to using the changing rule of indoor unit coil temperature as machine coil temperature condition storage in defrosting, such as
Fruit judges that indoor unit coil temperature meets machine coil temperature condition in the defrosting, it is determined that outdoor unit enters outdoor unit defrosting
Operational mode.
It should be noted that judging whether outdoor unit enters outdoor unit and defrost according to indoor unit operation information for indoor unit
Operational mode can also use others other than being judged indoor unit coil temperature as indoor unit operation information
For indoor unit operation information as basis for estimation, other all possible embodiments belong to the claimed range of the present invention.
Using the method for above-described embodiment, by outdoor unit as whether executing the judgement main body of Defrost operation and control is led
Body, indoor unit carry out defrosting collaboration, without being communicated between indoor unit and outdoor unit, can also realize air-conditioning system heating operation
Defrost operation when defrosting is needed under state, there is no the feelings that connection is communicated between indoor unit and outdoor unit to realize
The defrosting control of air conditioner under condition.
Fig. 2 is referred to, the figure shows the structure diagrams of the control device one embodiment that defrosts based on air conditioner of the present invention.
In this embodiment, connection is not set between indoor unit and outdoor unit, the communication between inside and outside machine cannot be carried out.For this kind of
Air conditioner realizes that the defrosting under heating mode controls using the device with following structures.
Specifically, the control device of the embodiment include structural unit, the connection relation between structural unit and each
The function of structural unit is as follows：
Outdoor unit defrosting judging unit 21, judges whether to need to defrost for outdoor unit according to outdoor unit operation information.
Outdoor unit Defrost operation control unit 22, for when the outdoor unit defrosting judgement of judging unit 21 needs defrosting, controlling
Outdoor unit processed enters outdoor unit Defrost operation pattern.
Indoor unit defrosts judging unit 23, for judging whether outdoor unit removes into outdoor unit according to indoor unit operation information
White operational mode.Wherein, indoor unit operation information is influenced by outdoor unit operational mode, if outdoor unit Defrost operation controls
Unit 22 controls outdoor unit and enters outdoor unit Defrost operation pattern, and indoor unit operation information can change, finally and outdoor unit
Corresponding indoor unit operation information matches after into Defrost operation pattern.
Indoor unit Defrost operation control unit 24 judges that outdoor unit enters outdoor for the defrosting judging unit 23 of machine indoors
When machine Defrost operation pattern, control indoor unit gets in machine Defrost operation pattern.
Preferably, device can also include indoor unit coil temperature detection unit, for detecting and exporting
Indoor unit coil temperature.In this case, indoor unit defrosting judging unit 23 obtains the output of indoor unit coil temperature detection unit
Indoor unit coil temperature, judges whether indoor unit coil temperature meets machine coil temperature condition in known defrosting, if satisfied, sentencing
Disconnected outdoor unit enters outdoor unit Defrost operation pattern.
In some other embodiment, device can also include defrosting sensor, for detecting and exporting defrosting sensor
Detection information.So, outdoor unit defrosting judging unit 21 will be sentenced according to the defrosting sensor detection information of defrosting sensor output
It is disconnected whether to need to defrost.
In other embodiments, device can also include compressor temperature detecting unit venting one's pent-up feelings, be used to detect and defeated
Go out compressor operating temperature venting one's pent-up feelings.So, outdoor unit defrosting judging unit 21 temperature detecting unit that will be felt elated and exultant according to compressor is defeated
The compressor operating temperature venting one's pent-up feelings and target temperature venting one's pent-up feelings gone out judges whether to need to defrost.
In some other embodiment, device can also include compressor operating current detecting unit, be used to detect and defeated
Go out compressor operating operating current.So, outdoor unit defrosting judging unit 21 will be defeated according to compressor operating current detecting unit
The compressor operating operating current and target operation electric current gone out judges whether to need to defrost.
In other preferred embodiment, device can also include defrosting sensor, compressor temperature detection list venting one's pent-up feelings
Member and compressor operating current detecting unit in any two or three.So, outdoor unit defrosting judging unit 21 is by root
The outdoor unit operation information exported according to two or three units is made whether the judgement for needing to defrost jointly.
Defrosting control device with above-mentioned each structural unit, runs corresponding software program, according to controlling party above-mentioned
Method carries out defrosting control, realizes that there is no the Defrost operations of air conditioner under communication condition between indoor unit and outdoor unit.More specifically
Defrosting control process can refer to the description of above-mentioned defrosting control method.
The above embodiments are merely illustrative of the technical solutions of the present invention, rather than is limited；Although with reference 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 recorded in example is modified or equivalent replacement of some of the technical features；And these are changed 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 (10)
1. a kind of air conditioner defrosting control method, which is characterized in that the method includes：
Outdoor unit judges whether to need to defrost according to outdoor unit operation information, and when needing defrosting, the outdoor unit enters outdoor
Machine Defrost operation pattern；
Indoor unit judges whether the outdoor unit enters the outdoor unit Defrost operation pattern according to indoor unit operation information, true
When the fixed outdoor unit enters the outdoor unit Defrost operation pattern, the indoor unit gets in machine Defrost operation pattern.
2. according to the method described in claim 1, it is characterized in that, the outdoor unit operation information includes defrosting sensor detection
Information, the outdoor unit judge whether to need to defrost, specifically include according to outdoor unit operation information：The outdoor unit is according to
Defrosting sensor detection information judges whether to need to defrost.
3. according to the method described in claim 1, it is characterized in that, the outdoor unit operation information includes that compressor operating is venting one's pent-up feelings
Temperature, the outdoor unit judge whether to need to defrost, specifically include according to outdoor unit operation information：The outdoor unit is according to
Compressor operating temperature venting one's pent-up feelings and target temperature venting one's pent-up feelings judge whether to need to defrost.
4. according to the method described in claim 1, it is characterized in that, the outdoor unit operation information includes compressor operating work
Electric current, the outdoor unit judge whether to need to defrost, specifically include according to outdoor unit operation information：The outdoor unit is according to
Compressor operating operating current and target operation electric current judge whether to need to defrost.
5. method according to claim 1 to 4, which is characterized in that the indoor unit is run according to indoor unit
Information judges whether the outdoor unit enters the outdoor unit Defrost operation pattern, specifically includes：The indoor unit obtains indoor
Machine coil temperature, judges whether the indoor unit coil temperature meets machine coil temperature condition in known defrosting, if satisfied, sentencing
The outdoor unit that breaks enters the outdoor unit Defrost operation pattern.
The control device 6. a kind of air conditioner defrosts, which is characterized in that described device includes：
Outdoor unit defrosting judging unit, judges whether to need to defrost for outdoor unit according to outdoor unit operation information；
Outdoor unit Defrost operation control unit, for the outdoor unit defrosting judging unit judgement need defrosting when, control room
Outer machine enters outdoor unit Defrost operation pattern；
Indoor unit defrosting judging unit, for judging whether the outdoor unit enters outdoor unit and defrost according to indoor unit operation information
Operational mode；
Indoor unit Defrost operation control unit, for judging described in the outdoor unit entrance in indoor unit defrosting judging unit
When outdoor unit Defrost operation pattern, control indoor unit gets in machine Defrost operation pattern.
7. device according to claim 6, which is characterized in that described device further includes：
Defrost sensor, for detecting and exporting defrosting sensor detection information；
The outdoor unit defrosting judging unit judges according to the defrosting sensor detection information of the defrosting sensor output
Whether need to defrost.
8. device according to claim 6, which is characterized in that described device further includes：
Compressor is felt elated and exultant temperature detecting unit, is felt elated and exultant temperature for detecting and exporting compressor operating；
The compressor operating that the outdoor unit defrosting judging unit is exported according to compressor temperature detecting unit venting one's pent-up feelings
Temperature of feeling elated and exultant and target temperature venting one's pent-up feelings judge whether to need to defrost.
9. device according to claim 6, which is characterized in that described device further includes：
Compressor operating current detecting unit, for detecting and exporting compressor operating operating current；
The compressor operating that the outdoor unit defrosting judging unit is exported according to the compressor operating current detecting unit
Operating current and target operation electric current judge whether to need to defrost.
10. the device according to any one of claim 6 to 9, which is characterized in that described device further includes：
Indoor unit coil temperature detection unit, for detecting and exporting indoor unit coil temperature；
The indoor unit defrosting judging unit obtains the indoor unit coil pipe of the indoor unit coil temperature detection unit output
Temperature, judges whether the indoor unit coil temperature meets machine coil temperature condition in known defrosting, if satisfied, described in judging
Outdoor unit enters the outdoor unit Defrost operation pattern.
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| CN201810008208.6A CN108317665B (en) | 2018-01-04 | 2018-01-04 | Defrosting control method and control device for air conditioner |
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| CN201810008208.6A CN108317665B (en) | 2018-01-04 | 2018-01-04 | Defrosting control method and control device for air conditioner |
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| CN108317665A true CN108317665A (en) | 2018-07-24 |
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| CN201810008208.6A Active CN108317665B (en) | 2018-01-04 | 2018-01-04 | Defrosting control method and control device for air conditioner |
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| CN110500649A (en) * | 2019-08-15 | 2019-11-26 | 海信（山东）空调有限公司 | Control method, device and the air-cooled ducted air conditioner of air-cooled ducted air conditioner |
| CN113654135A (en) * | 2021-07-30 | 2021-11-16 | 青岛海尔空调电子有限公司 | Heat pump type air conditioning system, control method and control device |
| CN113865007A (en) * | 2020-06-30 | 2021-12-31 | 青岛海尔空调器有限总公司 | Air conditioner and control method thereof |
| CN114484769A (en) * | 2022-02-17 | 2022-05-13 | 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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| CN108317665B (en) | 2020-04-24 |
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