CN108592296B - Defrosting control method for air conditioner - Google Patents
Defrosting control method for air conditioner Download PDFInfo
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- CN108592296B CN108592296B CN201810559253.0A CN201810559253A CN108592296B CN 108592296 B CN108592296 B CN 108592296B CN 201810559253 A CN201810559253 A CN 201810559253A CN 108592296 B CN108592296 B CN 108592296B
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- air conditioner
- defrosting
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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
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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
- F24F11/62—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
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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
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
- F24F11/84—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
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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
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/86—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling compressors within refrigeration or heat pump circuits
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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
- F24F11/89—Arrangement or mounting of control or safety devices
Abstract
The invention belongs to the technical field of air conditioners, and particularly relates to a defrosting control method of an air conditioner. In order to prevent the room temperature from fluctuating too much during defrosting, the defrosting control method of the invention comprises the following steps: calculating the accumulated heating quantity Q of the air conditioner in real time from the first time of entering the defrosting mode after the air conditioner is startedAccumulation(ii) a Comparing the accumulated heating quantity QAccumulationJudging whether the air conditioner enters the defrosting mode again according to the comparison result with the preset heating quantity Q; the time for the air conditioner to enter the defrosting mode for the first time after the air conditioner is started is determined according to the following mode: acquiring the time T for the air conditioner with the same type and the same type as the air conditioner to enter a defrosting mode for the first time after the air conditioner is started in the same environment and the same operating condition; and determining the time for entering the defrosting mode for the first time after the current air conditioner is started according to the time T. The invention can more accurately judge the time when the air conditioner enters the defrosting mode and furthest reduce the influence on the indoor temperature in the defrosting process.
Description
Technical Field
The invention belongs to the technical field of air conditioners, and particularly relates to a defrosting control method of an air conditioner.
Background
The air conditioner as a device capable of adjusting the indoor environment temperature has the working principle that: the indoor environment temperature is lowered or raised by the refrigerant switching between the circulation lines through the high pressure/low pressure/gas/liquid state, namely, the air conditioner is in the cooling or heating working condition from the perspective of the indoor unit. When the air conditioner heats the operation, if outdoor coil pipe temperature under certain humidity condition crosses lowly can lead to the condition of frosting, and outdoor coil pipe frosting can lead to outdoor heat exchanger's heat exchange efficiency to reduce, influences the heating effect of air conditioner, reduces indoor environment's travelling comfort, influences user experience. Therefore, in the situation that the air conditioner is in the heating working condition, the outdoor coil of the air conditioner needs to be defrosted timely and effectively.
In the operation heating process of the existing household air conditioner, if the outdoor humidity is high, the frosting condition is achieved, the outdoor machine can frost, the frosting directly influences the heating quantity, and the heating quantity directly influences the feeling of a user. The existing air conditioner generally utilizes the running time plus the temperature of an outdoor coil to judge whether defrosting is started or not, but the mode can not directly reflect the actual heating capacity of the air conditioner, and the heating capacity of the air conditioner used by a user is really influenced.
The present invention has been made in view of the above circumstances.
Disclosure of Invention
In order to solve the above problems in the prior art and to prevent the room temperature from fluctuating too much during defrosting, the invention provides a defrosting control method of an air conditioner, which comprises the following steps: calculating the accumulated heating quantity Q of the air conditioner in real time from the first time of entering the defrosting mode after the air conditioner is startedAccumulation(ii) a Comparing the accumulated heating quantity QAccumulationJudging whether the air conditioner enters the defrosting mode again according to the comparison result with the preset heating quantity Q; the time for the air conditioner to enter the defrosting mode for the first time after the air conditioner is started is determined according to the following mode: acquiring the time T for the air conditioner with the same type and the same type as the air conditioner to enter a defrosting mode for the first time after the air conditioner is started in the same environment and the same operating condition; and determining the time for entering the defrosting mode for the first time after the current air conditioner is started according to the time T.
In a preferred embodiment of the above-described defrosting control method for an air conditioner, "comparing the accumulated heating amount QAccumulationAnd the step of judging whether to enter the defrosting mode according to the comparison result with the preset heating quantity Q comprises the following steps: if Q is 0.9. ltoreq.QAccumulationIf the frequency is less than Q, the operation frequency of the compressor is reduced, and the heating operation is continued.
In the above-described preferred embodiment of the defrosting control method of the air conditioner, if 0.9 Q.ltoreq.QAccumulationIf < Q, the compressor operating frequency is reduced by 20%.
In a preferred embodiment of the above-described defrosting control method for an air conditioner, "comparing the accumulated heating amount QAccumulationAnd the step of judging whether to enter the defrosting mode according to the comparison result with the preset heating quantity Q comprises the following steps: if Q isAccumulationAnd if the temperature is more than or equal to Q, the air conditioner is enabled to enter the defrosting mode again.
In a preferred embodiment of the above-described air conditioner defrosting control method, the preset heating amount Q is determined by: setting a defrosting starting judgment condition; when the judgment condition is met, the air conditioner enters a defrosting mode; calculating the accumulated heating quantity Q of the air conditioner between two adjacent defrosting modesn(ii) a Calculating a plurality of accumulated heating quantities QnAnd taking the average value Q of the above as a preset heating quantity.
In a preferred embodiment of the above-described air conditioner defrosting control method, the step of "setting a judgment condition for entering defrosting" includes: the condition for making the air conditioner enter the defrosting mode is set according to the temperature of the coil of the outdoor unit.
In a preferred embodiment of the above-described air conditioner defrosting control method, the step of "setting a condition for bringing the air conditioner into the defrosting mode according to the temperature of the outdoor unit coil" includes: the condition for making the air conditioner enter the defrosting mode is set according to the decay speed of the temperature of the coil of the outdoor unit.
In a preferred embodiment of the above-described air conditioner defrosting control method, the step of "setting a condition for bringing the air conditioner into the defrosting mode according to the temperature of the outdoor unit coil" includes: the condition for making the air conditioner enter the defrosting mode is set according to the difference between the temperature of the coil of the outdoor unit and the preset temperature.
Preferred embodiment of the defrosting control method of the air conditionerIn the step of calculating a plurality of accumulated heating amounts QnIn the step of "average value Q of a plurality of cumulative heating amounts Qn"comprises at least Q1、Q2、Q3。
In a preferred embodiment of the above-described defrosting control method for an air conditioner, the defrosting control method further includes: when the condition of entering a defrosting mode is met, the four-way valve is reversed to defrost; wherein, the time of each defrosting mode is a preset fixed time.
The invention calculates the accumulated heating quantity Q of the air conditionerAccumulationAnd comparing the calculated heat quantity with a preset heat quantity Q to judge the accumulated heat quantity Q of the air conditionerAccumulationTo the extent that defrosting needs to be performed again. The time when the air conditioner enters the defrosting mode can be more accurately judged by taking the preset heating quantity Q as a reference, and the frequent defrosting phenomenon is avoided. And the influence on the indoor temperature in the defrosting process can be reduced to the greatest extent according to the accumulated heating capacity of the air conditioner, so that the indoor temperature cannot fluctuate greatly.
Drawings
Fig. 1 is a main flowchart of a defrosting control method of an air conditioner according to the present invention.
Detailed Description
In order to make the embodiments, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the embodiments are some, but not all embodiments of the present invention. It should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and are not intended to limit the scope of the present invention.
As shown in fig. 1, the defrosting control method of an air conditioner of the present invention includes the steps of: s110, calculating the accumulated heating quantity Q of the air conditioner in real time from the first time of entering the defrosting mode after the air conditioner is startedAccumulation(ii) a S120, comparing the accumulated heating quantity QAccumulationAnd judging whether the air conditioner enters the defrosting mode again according to the comparison result with the preset heating quantity Q. As can be understood by those skilled in the art, an air conditionerThe period from entering defrosting to next entering defrosting is an operation period which includes defrosting operation and heating operation, and if the air conditioner performs defrosting at an appropriate timing each time, the accumulated heating amount in one operation period of the air conditioner may be regarded as fixed, that is, the accumulated heating amount in one operation period of the air conditioner is the preset heating amount Q. Therefore, the accumulated heating quantity Q of the air conditioner is calculated from the first time the air conditioner enters the defrosting mode after being startedAccumulationComparison of QAccumulationAnd the value of Q can accurately judge whether the air conditioner enters the defrosting mode again.
In step S110, the time for the air conditioner to enter the defrosting mode for the first time after the air conditioner is turned on is determined as follows: acquiring the time T for the air conditioner with the same type as the air conditioner to enter a defrosting mode for the first time after the air conditioner is started in the same environment and the same operating condition; and determining the time for entering the defrosting mode for the first time after the current air conditioner is started according to the time T. That is to say, by using the big data principle, the time for the air conditioner with the same type number as the current air conditioner to enter the defrosting mode for the first time after being started under the same environment and the same operation condition is acquired by the background, and then the time for the current air conditioner to enter the defrosting mode for the first time after being started is obtained by calculating a large amount of acquired data. Regarding the use of big data to determine the time for entering the defrosting mode for the first time after the air conditioner is turned on, any suitable calculation method may be adopted by those skilled in the art, and the detailed description of the calculation method is omitted here.
As an example, the preset heating amount Q may be determined by: firstly, the judgment condition for entering the defrosting is set, for example, the condition for leading the air conditioner to enter the defrosting mode is set according to the temperature of the coil pipe of the outdoor unit. When the judgment condition is met, the air conditioner enters a defrosting mode, and then the accumulated heating quantity Q of the air conditioner is calculatednWhen the judgment condition is satisfied again, the currently calculated accumulated heating quantity Q is usednIs preserved as Q1(ii) a Then, the accumulated heating quantity Q of the air conditioner is recalculated from the time when the air conditioner enters the defrosting modenWhen the judgment condition is satisfied again, the currently calculated accumulated heating quantity Q is calculatednIs preserved as Q2(ii) a By analogy, the accumulated heating quantity Q between two adjacent defrosting modes of the air conditioner can be calculated1、Q2、Q3…Qn(ii) a Then calculating the accumulated heating quantity Q1、Q2、Q3…QnThe average value Q is the preset heating capacity.
It will be understood by those skilled in the art that the accumulated heating capacity of the air conditioner may be calculated by way of integration, and a detailed calculation method will not be described herein. The accumulated heating capacity of the multiple groups of air conditioners in each operation period (the operation period is that the air conditioners are defrosted from entering the defrosting to entering the defrosting again next time) is obtained through tests, and the more data obtained through the tests, the more accurate the preset heating capacity Q is. In addition, the judgment condition of defrosting set in the test process can flexibly select any reasonable judgment condition, for example, the condition of enabling the air conditioner to enter a defrosting mode can be set according to the attenuation speed of the temperature of the coil of the outdoor unit; or the condition for causing the air conditioner to enter the defrosting mode is set according to the difference between the temperature of the coil of the outdoor unit and the preset temperature, without departing from the scope of the present invention.
In step S120, when Q is 0.9 ≦ QAccumulationIf the frequency is less than Q, the operation frequency of the compressor can be reduced, the heating operation is continued, for example, the operation frequency of the compressor is reduced by 20%, and the defrosting time can be delayed. When Q isAccumulationAnd if the accumulated heating capacity of the air conditioner reaches the preset heating capacity Q, the air conditioner can be defrosted, and the air conditioner enters a defrosting mode again at the moment.
As an example, the defrosting control method of the air conditioner adopts a shutdown defrosting mode, namely when the condition of entering a defrosting mode is met, the four-way valve is used for reversing to defrost. The time for each defrost is set to a fixed time. In this defrosting mode, the air conditioner does not perform heating, and therefore, the calculation of the cumulative heating amount Q of the air conditioner can be resumed after the end of the first defrosting modeAccumulation. It is easily understood by those skilled in the art that in this mode, since the accumulated heating amount in the defrosting mode is 0, even if the defrosting mode is entered, the heating amount is removedCalculating the accumulated heating quantity Q of the air conditioner at the beginning of the frost modeAccumulationThe judgment result is not affected.
As an example, if the defrosting control method of the air conditioner of the present invention adopts a non-stop defrosting mode, that is, when the condition for entering the defrosting mode is satisfied, the bypass pipeline is opened to defrost, that is, the air conditioner heats the indoor space and simultaneously uses the bypass pipeline to defrost the outdoor unit. At this time, since a part of the heating capacity of the air conditioner still exists in the defrosting mode, the accumulated heating capacity Q of the air conditioner can be calculated when the first defrosting mode is startedAccumulation. It will be understood by those skilled in the art that if the heating amount generated by the air conditioner in the defrosting mode is not considered when determining the preset heating amount Q, the calculation of the accumulated heating amount Q of the air conditioner may be resumed after the defrosting mode is ended when the non-stop defrosting mode is adoptedAccumulation。
In summary, the present invention calculates the accumulated heating capacity Q of the air conditionerAccumulationAnd comparing the calculated heat quantity with a preset heat quantity Q to judge the accumulated heat quantity Q of the air conditionerAccumulationTo the extent that defrosting needs to be performed again. The time when the air conditioner enters the defrosting mode can be more accurately judged by taking the preset heating quantity Q as a reference, and the frequent defrosting phenomenon is avoided. And the influence on the indoor temperature in the defrosting process can be reduced to the greatest extent according to the accumulated heating capacity of the air conditioner, so that the indoor temperature cannot fluctuate greatly.
So far, the technical solutions of the present invention have been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Equivalent changes or substitutions of related technical features can be made by those skilled in the art without departing from the principle of the invention, and the technical scheme after the changes or substitutions can fall into the protection scope of the invention.
Claims (8)
1. A defrosting control method of an air conditioner is characterized by comprising the following steps:
calculating the accumulated heating quantity Q of the air conditioner in real time from the first time of entering the defrosting mode after the air conditioner is startedAccumulation；
Comparing the accumulated heating quantity QAccumulationJudging whether the air conditioner enters the defrosting mode again according to the comparison result with the preset heating quantity Q;
the time for the air conditioner to enter the defrosting mode for the first time after the air conditioner is started is determined according to the following mode:
acquiring the time T for the air conditioner with the same type and the same type as the air conditioner to enter a defrosting mode for the first time after the air conditioner is started in the same environment and the same operating condition;
determining the time for entering a defrosting mode for the first time after the current air conditioner is started according to the time T;
wherein, the accumulated heating quantity Q is comparedAccumulationAnd the step of judging whether to enter the defrosting mode according to the comparison result with the preset heating quantity Q comprises the following steps:
if Q is 0.9. ltoreq.QAccumulationIf the frequency is less than Q, the operation frequency of the compressor is reduced, and the heating operation is continued;
wherein the preset heating amount Q is determined by:
setting a defrosting starting judgment condition;
when the judgment condition is met, the air conditioner enters a defrosting mode;
calculating the accumulated heating quantity Q of the air conditioner between two adjacent defrosting modesn；
Calculating a plurality of accumulated heating quantities QnAnd taking the average value as a preset heating quantity Q.
2. The defrosting control method of an air conditioner according to claim 1, wherein if 0.9 Q.ltoreq.QAccumulationIf < Q, the compressor operating frequency is reduced by 20%.
3. The defrosting control method of an air conditioner according to claim 1, wherein the accumulated heating amount Q is comparedAccumulationAccording to the comparison result with the preset heating quantity QThe step of judging whether to enter the defrosting mode "further comprises:
if Q isAccumulationAnd if the temperature is more than or equal to Q, the air conditioner is enabled to enter the defrosting mode again.
4. The defrosting control method of an air conditioner according to claim 1, wherein the step of setting the judgment condition for entering defrosting includes:
the condition for making the air conditioner enter the defrosting mode is set according to the temperature of the coil of the outdoor unit.
5. The defrosting control method of an air conditioner according to claim 4, wherein the step of setting the condition for the air conditioner to enter the defrosting mode according to the temperature of the outdoor unit coil includes:
the condition for making the air conditioner enter the defrosting mode is set according to the decay speed of the temperature of the coil of the outdoor unit.
6. The defrosting control method of an air conditioner according to claim 4, wherein the step of setting the condition for the air conditioner to enter the defrosting mode according to the temperature of the outdoor unit coil includes:
the condition for making the air conditioner enter the defrosting mode is set according to the difference between the temperature of the coil of the outdoor unit and the preset temperature.
7. The defrosting control method of an air conditioner according to claim 1, wherein a plurality of accumulated heating amounts Q are calculatednIn the step of "average value of a plurality of cumulative heating amounts Qn"comprises at least Q1、Q2、Q3。
8. The air conditioner defrost control method of any one of claims 1-7, further comprising:
when the condition of entering a defrosting mode is met, the four-way valve is reversed to defrost;
wherein, the time of each defrosting mode is a preset fixed time.
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006112753A (en) * | 2004-10-18 | 2006-04-27 | Mitsubishi Electric Corp | Refrigerating air conditioner |
| KR20140133375A (en) * | 2013-05-11 | 2014-11-19 | 이병길 | Two stage heat pump cooling and heating apparatus using air heat source |
| CN105276768A (en) * | 2015-11-09 | 2016-01-27 | 广东美的制冷设备有限公司 | Defrosting control method and system for air conditioner and air conditioner |
| CN105318619A (en) * | 2015-10-23 | 2016-02-10 | 珠海格力电器股份有限公司 | Method and device for controlling defrosting of air conditioner |
| WO2016029092A1 (en) * | 2014-08-22 | 2016-02-25 | Thermo King Corporation | Method and system for defrosting a heat exchanger |
| CN106152644A (en) * | 2016-06-30 | 2016-11-23 | 珠海格力电器股份有限公司 | Heat pump air conditioner unit defrosting control method and system |
| CN106352599A (en) * | 2016-09-22 | 2017-01-25 | 芜湖美智空调设备有限公司 | Defrosting control method, defrosting control device and heat pump type air conditioner |
| CN107575998A (en) * | 2017-09-08 | 2018-01-12 | 青岛海尔空调器有限总公司 | The defrosting control method of air-conditioning and its outdoor unit |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004232942A (en) * | 2003-01-30 | 2004-08-19 | Fujitsu General Ltd | Defrosting control method for air conditioner |
| CN102759237B (en) * | 2011-04-25 | 2014-07-23 | 珠海格力电器股份有限公司 | Heat pump type air conditioner, and defrosting control method and defrosting control device thereof |
| JP6150514B2 (en) * | 2012-12-14 | 2017-06-21 | 三菱電機株式会社 | Air conditioner |
| CN105066377B (en) * | 2015-09-10 | 2017-12-12 | Tcl空调器(中山)有限公司 | Defrosting control method, device and the air conditioner of air conditioner |
| CN105387665B (en) * | 2015-11-25 | 2018-08-10 | 东南大学 | A kind of defrosting control method with air source heat pump comprehensive performance most preferably target |
| CN106705386B (en) * | 2017-02-28 | 2019-06-21 | 广东美的制冷设备有限公司 | A kind of air-conditioner control method and air conditioner |
-
2018
- 2018-06-01 CN CN201810559253.0A patent/CN108592296B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006112753A (en) * | 2004-10-18 | 2006-04-27 | Mitsubishi Electric Corp | Refrigerating air conditioner |
| KR20140133375A (en) * | 2013-05-11 | 2014-11-19 | 이병길 | Two stage heat pump cooling and heating apparatus using air heat source |
| WO2016029092A1 (en) * | 2014-08-22 | 2016-02-25 | Thermo King Corporation | Method and system for defrosting a heat exchanger |
| CN105318619A (en) * | 2015-10-23 | 2016-02-10 | 珠海格力电器股份有限公司 | Method and device for controlling defrosting of air conditioner |
| CN105276768A (en) * | 2015-11-09 | 2016-01-27 | 广东美的制冷设备有限公司 | Defrosting control method and system for air conditioner and air conditioner |
| CN106152644A (en) * | 2016-06-30 | 2016-11-23 | 珠海格力电器股份有限公司 | Heat pump air conditioner unit defrosting control method and system |
| CN106352599A (en) * | 2016-09-22 | 2017-01-25 | 芜湖美智空调设备有限公司 | Defrosting control method, defrosting control device and heat pump type air conditioner |
| CN107575998A (en) * | 2017-09-08 | 2018-01-12 | 青岛海尔空调器有限总公司 | The defrosting control method of air-conditioning and its outdoor unit |
Non-Patent Citations (2)
| Title |
|---|
| 低温制热工况空调器最佳除霜起始点的实验研究;张骏等;《制冷技术》;20161231;第36卷(第6期);第46-49页 * |
| 空气源热泵"误除霜"事故简析;王伟等;《制冷与空调》;20150331;第15卷(第3期);第64-71页 * |
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