CN106152388A - A kind of air conditioning unit Defrost method and device - Google Patents
A kind of air conditioning unit Defrost method and device Download PDFInfo
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- CN106152388A CN106152388A CN201510194734.2A CN201510194734A CN106152388A CN 106152388 A CN106152388 A CN 106152388A CN 201510194734 A CN201510194734 A CN 201510194734A CN 106152388 A CN106152388 A CN 106152388A
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- 238000000034 method Methods 0.000 title claims abstract description 19
- 238000004378 air conditioning Methods 0.000 title claims abstract description 15
- 238000010257 thawing Methods 0.000 claims abstract description 130
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 11
- 238000005265 energy consumption Methods 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
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Abstract
A kind of air conditioning unit Defrost method, including: detect that the outdoor unit of impact carries out every influence factor of defrosting operation, and defrost at least one times judgement according to described every influence factor；Wherein, described defrosting at least one times judges to include: judge with the magnitude relationship between frosting degree and the degree threshold value set in advance of described outdoor unit, and/or, judge with described outdoor unit magnitude relationship between defrosting interval and interval threshold set in advance between distance defrosting last time under current time；According to result of determination, determine whether described outdoor unit carries out defrosting operation.The present invention utilizes frosting degree and defrosting interval to carry out defrosting judgement, adapts to the different various regions of environment, it is ensured that defrosting effect；It addition, on the basis of ensureing defrosting effect, can effectively reduce defrosting number of times, the advantage reaching energy efficient.
Description
Technical Field
The invention relates to the technical field of air conditioning equipment, in particular to a defrosting method and device of an air conditioning unit.
Background
At present, when an outdoor unit of an air conditioner heats in winter, frosting generally occurs, but the external environment temperature and humidity are different, and the frosting condition is different. However, in the case of an air conditioner, whether or not defrosting can be performed is determined only based on the ambient temperature and the operating time. The defrosting conditions are the same for places where the humidity is large and places where the humidity is small.
For example, in the middle and downstream of the Yangtze river, because the temperature is low and the humidity is high, the defrosting is needed in 30 minutes, but in the north, the relative humidity is low, the defrosting is not needed in 30 minutes, but as the air conditioner, the defrosting conditions are the same, so the defrosting is also carried out in 30 minutes in the north. Therefore, places which do not need defrosting are frequently defrosted, the places which need defrosting are sometimes not defrosted and are possibly not cleaned, the indoor effect is poor, energy is wasted, and an energy-saving mode cannot be achieved.
Disclosure of Invention
The invention aims to provide a defrosting method of an air conditioning unit, which aims to solve the problem that the defrosting effect on different regions is not ideal in the prior art.
The defrosting method of the air conditioning unit comprises the following steps: detecting various influence factors influencing the defrosting operation of the outdoor unit, and carrying out at least one defrosting judgment according to the various influence factors; wherein the at least one defrost determination comprises: judging according to the magnitude relation between the frosting degree of the outdoor unit and a preset degree threshold value, and/or judging according to the magnitude relation between a defrosting interval between the outdoor unit and the last defrosting at the current moment and a preset interval threshold value; and determining whether the outdoor unit carries out defrosting operation or not according to the judgment result.
Another object of the present invention is to provide a defrosting apparatus for an air conditioning unit.
The defroster of air conditioning unit includes: the detection module is used for detecting various influence factors influencing the defrosting operation of the outdoor unit; the judging module is used for carrying out at least one defrosting judgment according to the various influencing factors; wherein the at least one defrost determination comprises: judging according to the magnitude relation between the frosting degree of the outdoor unit and a preset degree threshold value, and/or judging according to the magnitude relation between a defrosting interval between the outdoor unit and the last defrosting at the current moment and a preset interval threshold value; and the defrosting module is used for determining whether the outdoor unit carries out defrosting operation or not according to the judgment result.
Illustrative embodiments of the invention include the following advantages over the prior art:
the defrosting judgment is carried out by utilizing the frosting degree and the defrosting interval, so that the defrosting device is suitable for different regions of the environment and ensures the defrosting effect; in addition, on the basis of ensuring the defrosting effect, the defrosting times can be effectively reduced, and the advantage of saving energy consumption is achieved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:
FIG. 1 is a flow chart in accordance with an illustrative embodiment of the present invention;
FIG. 2 is a flow chart in accordance with an illustrative embodiment of the present invention;
FIG. 3 is a flow chart in accordance with an illustrative embodiment of the present invention;
fig. 4 is a block diagram of an architecture in accordance with an illustrative embodiment of the present invention.
Detailed Description
In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, it will be understood by those skilled in the art that the present invention may be practiced without these specific details. In other instances, well-known methods, procedures, components and circuits have not been described in detail so as not to obscure the present invention.
As shown in fig. 1, a defrosting method for an air conditioning unit is disclosed, which comprises the following steps:
s11, detecting various influence factors influencing the defrosting operation of the outdoor unit, and carrying out at least one defrosting judgment according to the various influence factors;
wherein the at least one defrost determination comprises: judging according to the magnitude relation between the frosting degree of the outdoor unit and a preset degree threshold value, and/or judging according to the magnitude relation between a defrosting interval between the outdoor unit and the last defrosting at the current moment and a preset interval threshold value;
and S12, determining whether the outdoor unit carries out defrosting operation or not according to the judgment result.
The invention utilizes the frosting degree and the defrosting interval to carry out defrosting judgment, adapts to different regions of the environment and ensures the defrosting effect; in addition, on the basis of ensuring the defrosting effect, the defrosting times can be effectively reduced, and the advantage of saving energy consumption is achieved.
The defrosting method in the prior art mainly judges the defrosting degree according to the temperature, and when the outdoor temperature reaches a preset value, the unit carries out defrosting operation; the mode has certain defrosting standards for places with different regional climates, but the influence of climate humidity on frosting can be different, and in the regions with relatively low humidity at the same temperature, the frosting of the air conditioning unit is slow, and in the regions with relatively high humidity, the frosting of the air conditioning unit is fast.
In some illustrative embodiments, in order to further solve the problem that frost formation standards are different in different regions, the at least one defrosting determination is determined solely by the magnitude relation between the frost formation degree of the outdoor unit and a preset degree threshold: if the frosting degree of the outdoor unit reaches a degree threshold value for triggering defrosting operation, carrying out defrosting operation on the outdoor unit; if not, the outdoor unit normally operates. The frosting degree of the outdoor unit is determined by analyzing the current outdoor environment humidity and outdoor environment temperature of the outdoor unit, and can be obtained by using the following formula:
D＝K*f(Ts、Ta)；
wherein D is the frosting degree, K is the measured frosting adjustment coefficient, Ts is the outdoor environment humidity, and Ta is the outdoor environment temperature.
According to the invention, the frosting degree of the outdoor unit is analyzed by using the outdoor environment temperature and the outdoor environment humidity, so that the condition that only the environment temperature is adopted as the judgment standard of the frosting degree in the prior art is avoided, the influence of the environment humidity on the frosting degree is neglected, and the accuracy and the reliability of the analyzed frosting degree are ensured.
In addition, another method for judging whether to perform defrosting operation in the prior art is to monitor the running time of the outdoor unit, start a timer when the outdoor unit starts running, perform defrosting operation when the running time reaches a preset time, and clear the running time; and timing again when the normal operation of the outdoor unit is started next time. The defrosting operation is performed according to the rule by taking a certain time interval as a trigger condition, but the defrosting frequency of the defrosting operation is certain, but due to the reasons of environmental temperature, humidity and the like, the frosting degree does not reach the standard of defrosting, and the defrosting operation is performed after the time interval is reached, so that the method is not beneficial to saving energy consumption.
In some illustrative embodiments, to achieve the effect of saving energy consumption, the at least one defrosting determination further includes: judging according to the size relation between the defrosting interval between the outdoor unit and the last defrosting at the current moment and a preset interval threshold; if the time interval exceeds a preset interval threshold, defrosting is carried out; otherwise, the outdoor unit operates normally.
Preferably, as shown in fig. 2:
the at least one defrosting determination specifically includes:
s21, judging whether the frosting degree of the outdoor unit reaches the degree threshold value;
if so, performing the defrosting operation; otherwise, go to step S22;
s22, judging whether the defrosting interval between the outdoor unit and the last defrosting at the current moment reaches the interval threshold value again;
if so, performing the defrosting operation; otherwise, the outdoor unit operates normally.
As shown in fig. 3, the defrosting determination may be performed as follows, specifically including:
s31, judging whether the frosting degree of the outdoor unit reaches the degree threshold value;
if not, the outdoor unit normally operates; if yes, go to step S32;
s32, judging whether the defrosting interval between the outdoor unit and the last defrosting at the current moment reaches the interval threshold value again;
if so, performing the defrosting operation; otherwise, the outdoor unit operates normally.
In some illustrative embodiments, after each defrost cycle is completed, a timer is started to begin timing until the next defrost cycle is cleared.
The invention utilizes the defrosting interval as the condition of secondary judgment, effectively reduces the defrosting times on the basis of ensuring the normal operation of the unit and the defrosting effect, thereby serving as the effect of saving energy consumption.
As shown in fig. 4, there is disclosed a defrosting apparatus 100 of an air conditioning unit, including: the detection module 101 detects various influence factors influencing the defrosting operation of the outdoor unit; a decision module 102 for performing at least one defrosting decision according to the various influencing factors; a defrosting module 103 for determining whether the outdoor unit performs a defrosting operation according to the determination result;
wherein the at least one defrost determination comprises: and judging according to the magnitude relation between the frosting degree of the outdoor unit and a preset degree threshold value, and/or judging according to the magnitude relation between the defrosting interval between the current moment and the last defrosting of the outdoor unit and a preset interval threshold value.
In some illustrative embodiments, the determination module 102 is configured to determine in turn in the following order: judging whether the frosting degree of the outdoor unit reaches the degree threshold value; if so, performing the defrosting operation; if not, judging whether the defrosting interval between the outdoor unit and the last defrosting at the current moment reaches the interval threshold value again; and if so, carrying out the defrosting operation.
In some illustrative embodiments, the detecting of the various factors affecting the defrosting operation of the outdoor unit includes at least: outdoor ambient humidity and outdoor ambient temperature.
In some illustrative embodiments, the defrost device 100, further comprises: and the analysis module 104 is used for determining the frosting degree of the outdoor unit according to the detected outdoor environment humidity and outdoor environment temperature.
In some illustrative embodiments, the analysis module 104 is configured to calculate the frosting level according to the following formula:
D＝K*f(Ts、Ta)；
wherein D is the frosting degree, K is the measured frosting adjustment coefficient, Ts is the outdoor environment humidity, and Ta is the outdoor environment temperature.
In some illustrative embodiments, the defroster 100 further comprises: after each defrosting is completed, a timer is started to start timing until the timing module 105 is cleared before the next defrosting is started.
The above description of the embodiments is only intended to facilitate the understanding of the method of the invention and its core ideas; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (10)
1. A defrosting method of an air conditioning unit is characterized by comprising the following steps:
detecting various influence factors influencing the defrosting operation of the outdoor unit, and carrying out at least one defrosting judgment according to the various influence factors; wherein,
the at least one defrost determination includes: judging according to the magnitude relation between the frosting degree of the outdoor unit and a preset degree threshold value, and/or judging according to the magnitude relation between a defrosting interval between the outdoor unit and the last defrosting at the current moment and a preset interval threshold value;
and determining whether the outdoor unit carries out defrosting operation or not according to the judgment result.
2. The defrosting method according to claim 1, wherein the at least one defrosting determination specifically includes:
judging whether the frosting degree of the outdoor unit reaches the degree threshold value; if so, performing the defrosting operation;
if not, judging whether the defrosting interval between the outdoor unit and the last defrosting at the current moment reaches the interval threshold value again; and if so, carrying out the defrosting operation.
3. The defrosting method according to claim 1 or 2, wherein the detecting of the various factors affecting the defrosting operation of the outdoor unit comprises at least: outdoor ambient humidity and outdoor ambient temperature;
before the determination is performed according to the magnitude relation between the frosting degree of the outdoor unit and the preset degree threshold, the method further comprises the following steps:
and determining the frosting degree of the outdoor unit according to the detected outdoor environment humidity and outdoor environment temperature.
4. The defrosting method according to claim 3, wherein the determining the frosting degree of the outdoor unit according to the detected outdoor environment humidity and outdoor environment temperature specifically comprises;
the frosting degree is calculated according to the following formula:
D＝K*f(Ts、Ta)；
wherein D is the frosting degree, K is the measured frosting adjustment coefficient, Ts is the outdoor environment humidity, and Ta is the outdoor environment temperature.
5. The defrosting method according to claim 1 or 2, further comprising: after each defrosting is finished, starting a timer to start timing until the defrosting is cleared before the next defrosting is started.
6. A defroster for an air conditioning unit, comprising:
the detection module is used for detecting various influence factors influencing the defrosting operation of the outdoor unit;
the judging module is used for carrying out at least one defrosting judgment according to the various influencing factors; wherein the at least one defrost determination comprises: judging according to the magnitude relation between the frosting degree of the outdoor unit and a preset degree threshold value, and/or judging according to the magnitude relation between a defrosting interval between the outdoor unit and the last defrosting at the current moment and a preset interval threshold value;
and the defrosting module is used for determining whether the outdoor unit carries out defrosting operation or not according to the judgment result.
7. The defroster of claim 6 wherein the determination module is configured to determine in sequence:
judging whether the frosting degree of the outdoor unit reaches the degree threshold value; if so, performing the defrosting operation;
if not, judging whether the defrosting interval between the outdoor unit and the last defrosting at the current moment reaches the interval threshold value again; and if so, carrying out the defrosting operation.
8. The defrosting apparatus of claim 6 or 7, wherein the detecting of the influence factors influencing the defrosting operation of the outdoor unit comprises at least: outdoor ambient humidity and outdoor ambient temperature;
the defrosting device further comprises:
and the analysis module is used for determining the frosting degree of the outdoor unit according to the detected outdoor environment humidity and outdoor environment temperature.
9. The defrost device of claim 8 wherein the analysis module is configured to calculate the frost formation level according to the following equation:
D＝K*f(Ts、Ta)；
wherein D is the frosting degree, K is the measured frosting adjustment coefficient, Ts is the outdoor environment humidity, and Ta is the outdoor environment temperature.
10. The defroster of claim 6 or 7 further comprising: and the timing module is used for starting a timer to start timing after each defrosting is finished, and clearing the timer until the next defrosting is started.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510194734.2A CN106152388A (en) | 2015-04-23 | 2015-04-23 | A kind of air conditioning unit Defrost method and device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510194734.2A CN106152388A (en) | 2015-04-23 | 2015-04-23 | A kind of air conditioning unit Defrost method and device |
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| CN106152388A true CN106152388A (en) | 2016-11-23 |
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| CN201510194734.2A Pending CN106152388A (en) | 2015-04-23 | 2015-04-23 | A kind of air conditioning unit Defrost method and device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108444035A (en) * | 2018-02-14 | 2018-08-24 | 青岛海尔空调器有限总公司 | Air conditioner defrosting control method |
| WO2019214230A1 (en) * | 2018-05-07 | 2019-11-14 | 珠海格力电器股份有限公司 | Air conditioner defrosting method and device |
| CN110779164A (en) * | 2019-11-13 | 2020-02-11 | 宁波奥克斯电气股份有限公司 | Air conditioner defrosting control method and device, air conditioner and computer readable storage medium |
| CN111895593A (en) * | 2019-05-06 | 2020-11-06 | 青岛海尔空调器有限总公司 | Control method and device for defrosting of air conditioner and air conditioner |
| CN115412020A (en) * | 2022-08-08 | 2022-11-29 | 合肥中南光电有限公司 | Panel defrosting system for solar photovoltaic panel |
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| CN102519186A (en) * | 2011-12-21 | 2012-06-27 | 青岛海尔空调电子有限公司 | Defrosting method of air conditioner air-cooled heat pump unit and air conditioner air-cooled heat pump unit |
| CN103743060A (en) * | 2013-12-24 | 2014-04-23 | 南京协众汽车空调集团有限公司 | Method for heat pump type air-conditioning system defrosting control on basis of air temperature and humidity |
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2015
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Patent Citations (3)
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| JPS58184435A (en) * | 1982-04-21 | 1983-10-27 | Hitachi Ltd | Air cooled heat pump type air conditioner device |
| CN102519186A (en) * | 2011-12-21 | 2012-06-27 | 青岛海尔空调电子有限公司 | Defrosting method of air conditioner air-cooled heat pump unit and air conditioner air-cooled heat pump unit |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108444035A (en) * | 2018-02-14 | 2018-08-24 | 青岛海尔空调器有限总公司 | Air conditioner defrosting control method |
| WO2019214230A1 (en) * | 2018-05-07 | 2019-11-14 | 珠海格力电器股份有限公司 | Air conditioner defrosting method and device |
| CN110454910A (en) * | 2018-05-07 | 2019-11-15 | 珠海格力电器股份有限公司 | Method and equipment for defrosting of air conditioner |
| CN110454910B (en) * | 2018-05-07 | 2020-08-04 | 珠海格力电器股份有限公司 | Method and equipment for defrosting of air conditioner |
| CN111895593A (en) * | 2019-05-06 | 2020-11-06 | 青岛海尔空调器有限总公司 | Control method and device for defrosting of air conditioner and air conditioner |
| CN111895593B (en) * | 2019-05-06 | 2022-04-19 | 青岛海尔空调器有限总公司 | Control method and device for defrosting of air conditioner and air conditioner |
| CN110779164A (en) * | 2019-11-13 | 2020-02-11 | 宁波奥克斯电气股份有限公司 | Air conditioner defrosting control method and device, air conditioner and computer readable storage medium |
| CN115412020A (en) * | 2022-08-08 | 2022-11-29 | 合肥中南光电有限公司 | Panel defrosting system for solar photovoltaic panel |
| CN115412020B (en) * | 2022-08-08 | 2024-05-31 | 合肥中南光电有限公司 | Plate surface defrosting system for solar photovoltaic plate |
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Application publication date: 20161123 |