CN103575004A - Defrosting method and defrosting device for air conditioner - Google Patents
Defrosting method and defrosting device for air conditioner Download PDFInfo
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- CN103575004A CN103575004A CN201210271578.1A CN201210271578A CN103575004A CN 103575004 A CN103575004 A CN 103575004A CN 201210271578 A CN201210271578 A CN 201210271578A CN 103575004 A CN103575004 A CN 103575004A
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Abstract
The invention discloses a defrosting method and a defrosting device for an air conditioner. The defrosting method includes determining the temperature of an indoor coiled tube and a current wind speed level of the air conditioner after the continuous running time a compressor of the air conditioner exceeds a preset time period and the temperature of the indoor coiled tube continuously drops; enabling the air conditioner to be in a defrosting state when the temperature of the indoor coiled tube is lower than a preset temperature value corresponding to the current wind speed level of an indoor unit. The defrosting method and the defrosting device have the advantages that the temperature of the indoor coiled tube and the current wind speed level of the air conditioner are determined after the continuous running time of the compressor of the air conditioner exceeds the preset time period and the temperature of the indoor coiled tube continuously drops, and the air conditioner is in the defrosting state when the temperature of the indoor coiled tube is lower than the preset temperature value corresponding to the current wind speed level of the indoor unit, so that defrosting actuating moments can be reasonably arranged according to different wind speed conditions of the indoor unit, and the defrosting accuracy of a system can be improved.
Description
Technical field
The present invention relates to air-conditioner field, particularly, relate to a kind of method and apparatus of air-conditioner defrosting.
Background technology
For current air-conditioner, generally there are two kinds of Defrost modes.Variation and press that the first is experienced outdoor coil pipe used temperature by outdoor coil pipe used temperature sensor judge running time.The second is experienced indoor temperature change generated in case by indoor coil sensor and environment temperature sensor and is judged running time in conjunction with press.
For in correlation technique for the problem that cannot accurately defrost under running status in different chamber, effective solution is not yet proposed at present.
Summary of the invention
For in correlation technique for the problem that cannot accurately defrost under running status in different chamber, the present invention proposes a kind of method and apparatus of air-conditioner defrosting, can be the in the situation that of indoor different wind speed, to entering the condition of defrosting, revise targetedly, improve the accuracy that enters defrosting time.
Technical scheme of the present invention is achieved in that
According to an aspect of the present invention, provide a kind of method of air-conditioner defrosting, this comprises:
The time of moving continuously at cooler compressor surpasses predetermined time section, and after indoor coil pipe continuous decrease, determines the wind speed rank that indoor coil pipe and air-conditioner are current;
When indoor coil pipe is during lower than preset temperature value corresponding to the current wind speed rank of indoor set, air-conditioner enters defrost state.
The method further comprises:
In advance air-conditioner is configured to a plurality of other wind speed of level, and the preset temperature value corresponding with each rank.
Wherein, in indoor coil pipe, in the situation that the temperature declining at least one time interval reaches predetermined value, determine indoor coil pipe continuous decrease.
And when indoor coil pipe is during lower than preset temperature value corresponding to the current wind speed rank of indoor set, cooler compressor makes air-conditioner enter defrost state after continuing one time period of operation.
And, after air-conditioner enters defrost state, cooler compressor meet in following mode one of at least time, air-conditioner exits defrost state:
The current value that defrosting time reaches the scheduled time, cooler compressor reaches predetermined current value.
According to an aspect of the present invention, also provide a kind of device of air-conditioner defrosting, it is characterized in that, having comprised:
Determination module, for surpassing predetermined time section in the continuous time of moving of cooler compressor, and after indoor coil pipe continuous decrease, determines the wind speed rank that indoor coil pipe and air-conditioner are current;
Control module, for when indoor coil pipe is during lower than preset temperature value corresponding to the current wind speed rank of indoor set, controls air-conditioner and enters defrost state.
Wherein, determination module is configured with a plurality of other wind speed of level, and the preset temperature value corresponding with each rank.
And determination module is further used in indoor coil pipe in the situation that the temperature declining at least one time interval reaches predetermined value, determines indoor coil pipe continuous decrease.
And control module is further used for when indoor coil pipe is during lower than preset temperature value corresponding to the current wind speed rank of indoor set, and after cooler compressor continues one time period of operation, controls air-conditioner and enter defrost state.
And, after air-conditioner enters defrost state, cooler compressor meet in following mode one of at least time, control module is controlled air-conditioner and is exited defrost state:
The current value that defrosting time reaches the scheduled time, cooler compressor reaches predetermined current value.
The present invention surpasses predetermined time section by the time of moving continuously at cooler compressor, and after indoor coil pipe continuous decrease, determines the wind speed rank that indoor coil pipe and air-conditioner are current; When indoor coil pipe is during lower than preset temperature value corresponding to the current wind speed rank of indoor set, air-conditioner enters defrost state, can the situation for the different wind speed of indoor set under, the time that reasonably arranges defrosting to enter, the accuracy of raising system defrosting.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is according to the flow chart of the method for the air-conditioner defrosting of the embodiment of the present invention;
Fig. 2 is according to the schematic diagram of the implementation of the method for the air-conditioner defrosting of the embodiment of the present invention;
Fig. 3 is according to the block diagram of the device of the air-conditioner defrosting of the embodiment of the present invention.
The specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Embodiment based in the present invention, the every other embodiment that those of ordinary skills obtain, belongs to the scope of protection of the invention.
According to embodiments of the invention, provide a kind of method of air-conditioner defrosting.
As shown in Figure 1, according to the method for the air-conditioner defrosting of the embodiment of the present invention, comprise:
Step S101, the time of moving continuously at cooler compressor surpasses predetermined time section, and after indoor coil pipe continuous decrease, determines the wind speed rank that indoor coil pipe and air-conditioner are current;
Step S103, when indoor coil pipe is during lower than preset temperature value corresponding to the current wind speed rank of indoor set, air-conditioner enters defrost state.
The method further comprises:
In advance air-conditioner is configured to a plurality of other wind speed of level, and the preset temperature value corresponding with each rank.
For example, can be in advance to air-conditioning configuration high wind speed, middle wind speed and three kinds of temperature values corresponding to wind speed of low wind speed, suppose that the preset temperature value corresponding with high wind speed is TEP1, the preset temperature value corresponding with middle wind speed is TEP2, and the preset temperature value corresponding with low wind speed is TEP3.
Wherein, in indoor coil pipe, in the situation that the temperature declining at least one time interval reaches predetermined value, determine indoor coil pipe continuous decrease.
And when indoor coil pipe is during lower than preset temperature value corresponding to the current wind speed rank of indoor set, cooler compressor makes air-conditioner enter defrost state after continuing one time period of operation.
And, after air-conditioner enters defrost state, cooler compressor meet in following mode one of at least time, air-conditioner exits defrost state:
The current value that defrosting time reaches the scheduled time, cooler compressor reaches predetermined current value.
Fig. 2 is according to the schematic diagram of the implementation of the method for the air-conditioner defrosting in the embodiment of the present invention.
As shown in Figure 2, unit brings into operation, and when continuously operation 22 minutes of cooler compressor, indoor coil pipe declines 1 ℃ for every 6 minutes, and occurs above situation continuous three times, and while meeting with lower coil pipe conditional request:
Condition 1: high wind inner coil pipe temperature is less than TEP1;
Condition 2: apoplexy inner coil pipe temperature is less than TEP2;
Condition 3: low wind inner coil pipe temperature is less than TEP3;
Cooler compressor is meeting above condition and is continuing operation after 5 minutes, compressor emergency shutdown, and air-conditioner enters defrost state.
When air-conditioner does not have outdoor temperature sensor, if in the situation that cooler compressor is started shooting, defrosting time is greater than setting value T=12 minute; Or when the current value (CT) that cooler compressor when operation detects is greater than predetermined current value, compressor emergency shutdown, air-conditioner exits defrost state.
After air-conditioner exits defrost state, cooler compressor continues operation heating mode.
Should be noted that, the described process of Fig. 2 is only an example, in actual applications, can also adopt other the condition of prejudging to start the judgement of wind speed and corresponding preset temperature value, also can change as required above-mentioned design parameter, for example can change press continuous operating time length, also can change amplitude and the number of times requirement of decline temperature, will not enumerate herein.
According to embodiments of the invention, also provide a kind of device of air-conditioner defrosting.
As shown in Figure 3, according to the device of the air-conditioner defrosting of the embodiment of the present invention, comprise:
Determination module 31, for surpassing predetermined time section in the continuous time of moving of cooler compressor, and after indoor coil pipe continuous decrease, determines the wind speed rank that indoor coil pipe and air-conditioner are current;
Control module 32, for when indoor coil pipe is during lower than preset temperature value corresponding to the current wind speed rank of indoor set, controls air-conditioner and enters defrost state.
Wherein, determination module 31 is configured with a plurality of other wind speed of level, and the preset temperature value corresponding with each rank.
And determination module 31 is further used in indoor coil pipe in the situation that the temperature declining at least one time interval reaches predetermined value, determines indoor coil pipe continuous decrease.
And control module 32 is further used for when indoor coil pipe is during lower than preset temperature value corresponding to the current wind speed rank of indoor set, and after cooler compressor continues one time period of operation, controls air-conditioner and enter defrost state.
And, after air-conditioner enters defrost state, cooler compressor meet in following mode one of at least time, control module 32 is controlled air-conditioners and is exited defrost state:
The current value that defrosting time reaches the scheduled time, cooler compressor reaches predetermined current value.
In sum, by means of technique scheme of the present invention, by surpassing predetermined time section in the continuous time of moving of cooler compressor, and after indoor coil pipe continuous decrease, determine the wind speed rank that indoor coil pipe and air-conditioner are current; When indoor coil pipe is during lower than preset temperature value corresponding to the current wind speed rank of indoor set, air-conditioner enters defrost state.By the control mode of above-mentioned heating and defrosting, the present invention can the situation for indoor different wind speed under, the time that reasonably arranges defrosting to enter, the accuracy of raising system defrosting, thereby guarantee the overall performance of unit, and guarantee the efficient, stable of unit operation.
The foregoing is only preferred embodiment of the present invention, in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (10)
1. a method for air-conditioner defrosting, is characterized in that, comprising:
The time of moving continuously at described cooler compressor surpasses predetermined time section, and after indoor coil pipe continuous decrease, determines the wind speed rank that described indoor coil pipe and described air-conditioner are current;
When described indoor coil pipe is during lower than preset temperature value corresponding to the current wind speed rank of described indoor set, described air-conditioner enters defrost state.
2. method according to claim 1, is characterized in that, further comprises:
In advance described air-conditioner is configured to a plurality of other wind speed of level, and the preset temperature value corresponding with each rank.
3. method according to claim 1, is characterized in that, in the temperature that described indoor coil pipe declined at least one time interval, reaches predetermined value, determines described indoor coil pipe continuous decrease.
4. method according to claim 1, it is characterized in that, when described indoor coil pipe is during lower than preset temperature value corresponding to the current wind speed rank of described indoor set, described cooler compressor makes described air-conditioner enter defrost state after continuing one time period of operation.
5. method according to claim 1, is characterized in that, after described air-conditioner enters defrost state, described cooler compressor meet in following mode one of at least time, described air-conditioner exits defrost state:
The current value that defrosting time reaches the scheduled time, described cooler compressor reaches predetermined current value.
6. a device for air-conditioner defrosting, is characterized in that, comprising:
Determination module, for surpassing predetermined time section in the continuous time of moving of described cooler compressor, and after indoor coil pipe continuous decrease, determines the wind speed rank that described indoor coil pipe and described air-conditioner are current;
Control module, for when described indoor coil pipe is during lower than preset temperature value corresponding to the current wind speed rank of described indoor set, controls described air-conditioner and enters defrost state.
7. device according to claim 6, is characterized in that, described determination module is configured with a plurality of other wind speed of level, and the preset temperature value corresponding with each rank.
8. device according to claim 6, is characterized in that, described determination module is further used for reaching predetermined value in the temperature that described indoor coil pipe declined at least one time interval, determines described indoor coil pipe continuous decrease.
9. device according to claim 6, it is characterized in that, described control module is further used for when described indoor coil pipe is during lower than preset temperature value corresponding to the current wind speed rank of described indoor set, and described cooler compressor is controlled described air-conditioner and is entered defrost state after continuing one time period of operation.
10. device according to claim 6, is characterized in that, after described air-conditioner enters defrost state, described cooler compressor meet in following mode one of at least time, described control module is controlled described air-conditioner and is exited defrost state:
The current value that defrosting time reaches the scheduled time, described cooler compressor reaches predetermined current value.
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| CN201210271578.1A CN103575004B (en) | 2012-08-01 | 2012-08-01 | The method and apparatus of air-conditioner defrosting |
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| CN201210271578.1A CN103575004B (en) | 2012-08-01 | 2012-08-01 | The method and apparatus of air-conditioner defrosting |
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| CN103575004A true CN103575004A (en) | 2014-02-12 |
| CN103575004B CN103575004B (en) | 2016-09-07 |
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Cited By (12)
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| CN104180571A (en) * | 2014-08-25 | 2014-12-03 | 广东美的集团芜湖制冷设备有限公司 | Air conditioner defrosting control method and device and air conditioner |
| CN104180478A (en) * | 2014-08-22 | 2014-12-03 | 广东美的集团芜湖制冷设备有限公司 | Air conditioner defrosting control method and device and air conditioner |
| CN104279698A (en) * | 2014-09-28 | 2015-01-14 | 芜湖美智空调设备有限公司 | Mobile air conditioner and defrosting control method thereof |
| CN104807113A (en) * | 2015-04-30 | 2015-07-29 | 广东美的暖通设备有限公司 | Air conditioner outdoor unit, air conditioner outdoor unit defrosting judging system and air conditioner outdoor unit defrosting judging method |
| CN104913452A (en) * | 2015-06-03 | 2015-09-16 | 广东美的制冷设备有限公司 | Air conditioner and defrosting control method for same |
| CN106766437A (en) * | 2017-01-24 | 2017-05-31 | 青岛海尔空调器有限总公司 | Air-conditioner defrosting control method and device |
| CN109269018A (en) * | 2018-09-28 | 2019-01-25 | 珠海格力电器股份有限公司 | The control method and device of air-conditioning defrost pattern |
| CN109798634A (en) * | 2019-01-30 | 2019-05-24 | 海信家电集团股份有限公司 | A kind of Defrost method and air conditioner of air conditioner |
| CN110418922A (en) * | 2017-01-12 | 2019-11-05 | 尼蓝宝股份有限公司 | Temperature and relative humidity controller |
| CN110631206A (en) * | 2018-06-25 | 2019-12-31 | 青岛海尔空调器有限总公司 | Defrosting control method and device for air conditioner |
| CN110631190A (en) * | 2018-06-25 | 2019-12-31 | 青岛海尔空调器有限总公司 | Defrosting control method and device for air conditioner |
| CN110631183A (en) * | 2018-06-25 | 2019-12-31 | 青岛海尔空调器有限总公司 | Defrosting control method and device for air conditioner |
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Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104180478B (en) * | 2014-08-22 | 2017-08-25 | 广东美的集团芜湖制冷设备有限公司 | The defrosting control method of air conditioner, the defrosting control device of air conditioner and air conditioner |
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| CN104279698A (en) * | 2014-09-28 | 2015-01-14 | 芜湖美智空调设备有限公司 | Mobile air conditioner and defrosting control method thereof |
| CN104807113A (en) * | 2015-04-30 | 2015-07-29 | 广东美的暖通设备有限公司 | Air conditioner outdoor unit, air conditioner outdoor unit defrosting judging system and air conditioner outdoor unit defrosting judging method |
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| CN104913452A (en) * | 2015-06-03 | 2015-09-16 | 广东美的制冷设备有限公司 | Air conditioner and defrosting control method for same |
| CN104913452B (en) * | 2015-06-03 | 2017-11-10 | 广东美的制冷设备有限公司 | Air conditioner and its defrosting control method |
| CN110418922A (en) * | 2017-01-12 | 2019-11-05 | 尼蓝宝股份有限公司 | Temperature and relative humidity controller |
| CN110418922B (en) * | 2017-01-12 | 2022-08-16 | 尼蓝宝股份有限公司 | Temperature and relative humidity controller |
| US11473807B2 (en) | 2017-01-12 | 2022-10-18 | Nelumbo Inc. | Temperature and relative humidity controller |
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| CN106766437A (en) * | 2017-01-24 | 2017-05-31 | 青岛海尔空调器有限总公司 | Air-conditioner defrosting control method and device |
| CN110631206A (en) * | 2018-06-25 | 2019-12-31 | 青岛海尔空调器有限总公司 | Defrosting control method and device for air conditioner |
| CN110631190A (en) * | 2018-06-25 | 2019-12-31 | 青岛海尔空调器有限总公司 | Defrosting control method and device for air conditioner |
| CN110631183A (en) * | 2018-06-25 | 2019-12-31 | 青岛海尔空调器有限总公司 | Defrosting control method and device for air conditioner |
| CN110631183B (en) * | 2018-06-25 | 2022-04-19 | 青岛海尔空调器有限总公司 | Defrosting control method and device for air conditioner |
| CN109269018A (en) * | 2018-09-28 | 2019-01-25 | 珠海格力电器股份有限公司 | The control method and device of air-conditioning defrost pattern |
| CN109798634A (en) * | 2019-01-30 | 2019-05-24 | 海信家电集团股份有限公司 | A kind of Defrost method and air conditioner of air conditioner |
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