CN102997525B - Air conditioner and defrosting method and device thereof - Google Patents
Air conditioner and defrosting method and device thereof Download PDFInfo
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- CN102997525B CN102997525B CN201110268317.XA CN201110268317A CN102997525B CN 102997525 B CN102997525 B CN 102997525B CN 201110268317 A CN201110268317 A CN 201110268317A CN 102997525 B CN102997525 B CN 102997525B
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Abstract
The invention discloses an air conditioner and a defrosting method and device thereof. The defrosting method of the air conditioner includes: detecting the first defrosting load; determining the first defrosting frequency according to the first defrosting load, wherein the defrosting frequency is the initial frequency of the air conditioner operating in the defrosting mode; adopting the first defrosting frequency for defrosting; detecting the second defrosting load after using the first defrosting frequency for defrosting for the first preset time; comparing the second defrosting load and the first defrosting load; determining the second defrosting frequency according to the second defrosting load when the second defrosting load is larger than or equal to the first defrosting load; and adopting the second defrosting frequency for defrosting, wherein the second defrosting frequency is larger than the first defrosting frequency. According to the air conditioner and the defrosting method and device thereof, the defrosting capability effect can be adjusted according to the specific frosting condition, the defrosting requirement is met, and simultaneously low energy consumption and little time are achieved.
Description
Technical field
The present invention relates to field of air conditioning, in particular to a kind of air-conditioner and Defrost method and device.
Background technology
At present, air-conditioning adopts the mode of contrary circulation to defrost, although defrosting entry condition is divided into multiple, but convertible frequency air-conditioner adopts the method for fixed frequency in the process of reverse cycle defrosting, as long as that is to say and enter defrosting mode, no matter frosting what state, the ability of defrosting is all identical.Therefore, in the time that frosting degree is very large, defrosting ability is inadequate, will increase defrosting time, affects indoor comfort degree; In the time that frosting degree is very little, defrosting ability is excessive, and system ensures the minimum running time of 3 minutes again, has caused energy waste.
Cannot, according to the problem of frosting situation adjustment defrosting ability, effective solution not yet be proposed at present for air-conditioner in correlation technique.
Summary of the invention
Main purpose of the present invention is to provide a kind of air-conditioner and Defrost method and device, cannot be according to the problem of frosting situation adjustment defrosting ability to solve air-conditioner.
To achieve these goals, according to an aspect of the present invention, provide a kind of Defrost method of air-conditioner.
Comprise according to the Defrost method of air-conditioner of the present invention: detect the first defrosting load; According to the first defrosting determination of power load first frequency that defrosts, this first defrosting frequency is the original frequency that air-conditioner runs on defrosting mode; Adopt the first defrosting frequency to defrost; Adopting the first defrosting frequency to defrost after the first Preset Time, detect the second defrosting load; The relatively size of the second defrosting load and the first defrosting load; In the time that the second defrosting load is more than or equal to the first defrosting load, according to the second defrosting determination of power load second frequency that defrosts; And adopt the second defrosting frequency to defrost, wherein, the second defrosting frequency is greater than the first defrosting frequency.
Further, the first Preset Time is the minimum running time that air-conditioner system runs on defrosting mode.
Further, after adopting the second defrosting frequency to defrost, the method also comprises: adopting the second defrosting frequency to remove after the second Preset Time, detect the 3rd defrosting load; The relatively size of the 3rd defrosting load and the second defrosting load; In the time that the 3rd defrosting load is more than or equal to the second defrosting load, according to the 3rd defrosting determination of power load the 3rd defrosting frequency; And adopt the 3rd defrosting frequency to defrost to maximum running time of the backed off after random defrosting mode that reaches defrosting mode.
Further, be 3 minutes minimum running time, and the second Preset Time is 6 minutes, and be 10 minutes maximum running time.
Further, the first defrosting load is corresponding default with the first defrosting frequency, and the second defrosting load is corresponding default with the second defrosting frequency.
To achieve these goals, according to a further aspect in the invention, provide a kind of defroster of air-conditioner.
Comprise according to the defroster of air-conditioner of the present invention: first detection module, for detection of the first defrosting load; The first determination module, for the frequency that defrosts according to the first defrosting determination of power load first, this first defrosting frequency is the original frequency that air-conditioner runs on defrosting mode; The first control module, for adopting the first defrosting frequency to defrost; The second detection module, for adopting the first defrosting frequency to defrost after the first Preset Time, detects the second defrosting load; The first comparison module, the size of loading for comparing the second defrosting load and the first defrosting; The second determination module, when being more than or equal to the first defrosting load at the second defrosting load, according to the second defrosting determination of power load second frequency that defrosts; And second control module, for adopting the second defrosting frequency to defrost, wherein, the second defrosting frequency is greater than the first defrosting frequency.
Further, the first Preset Time is the minimum running time that air-conditioner system runs on defrosting mode.
Further, this defroster also comprises: the 3rd detection module, for adopting the second defrosting frequency to defrost after the second Preset Time, detects the 3rd defrosting load; The second comparison module, the size of loading for comparing the 3rd defrosting load and the second defrosting; The 3rd determination module, in the time that the 3rd defrosting load is more than or equal to the second defrosting load, according to the 3rd defrosting determination of power load the 3rd defrosting frequency; And the 3rd control module, control air-conditioner after maximum running time and exit defrosting mode for adopting the 3rd defrosting frequency defrost to reach.
To achieve these goals, according to a further aspect in the invention, provide a kind of air-conditioner.
Air-conditioner according to the present invention comprises any one defroster provided by the invention.
By the present invention, the Defrost method that employing comprises the following steps: first determine original frequency according to current defrosting load, adopting after original frequency defrosting a period of time, continue to detect defrosting load, and according to testing result adjustment defrosting frequency, having solved air-conditioner cannot be according to the problem of frosting situation adjustment defrosting ability, and then reached can be according to the effect of concrete frosting situation adjustment defrosting ability, take lower energy consumption and less time meeting in defrosting requires.
Brief description of the drawings
The accompanying drawing that forms the application's a part is used to provide a further understanding of the present invention, and schematic description and description of the present invention is used for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is according to the block diagram of the defroster of the air-conditioner of the embodiment of the present invention;
Fig. 2 is the Defrost method flow chart according to the air-conditioner of first embodiment of the invention; And
Fig. 3 is the Defrost method flow chart according to the air-conditioner of second embodiment of the invention.
Detailed description of the invention
It should be noted that, in the situation that not conflicting, the feature in embodiment and embodiment in the application can combine mutually.Describe below with reference to the accompanying drawings and in conjunction with the embodiments the present invention in detail.
The air-conditioner that paper present embodiment provides.This air-conditioner comprises a kind of defroster, and the concrete composition of this defroster is described in more detail below.This defroster can detect frosting situation, and according to frosting situation adjustment dehumidifying frequency, the compressor that makes air-conditioner in dehumidification process in suitable frequency values, more and more serious in frosting situation, when defrosting load is increasing, the frequency of rising compressor, reduces defrosting time, can reduce the impact of the comfort level of defrosting on air conditioner heat-production; Again can be smaller in frosting situation, defrosting load reduces the frequency of compressor little time, reduced energy consumption.
Next introduces the defroster that present embodiment provides.
Fig. 1 is according to the block diagram of the defroster of the air-conditioner of the embodiment of the present invention, and as shown in Figure 1, this defroster comprises: first detection module 10, for detection of the first defrosting load; The first determination module 20, for the frequency that defrosts according to the first defrosting determination of power load first, this first defrosting frequency is the original frequency that air-conditioner runs on defrosting mode; The first control module 30, for adopting the first defrosting frequency to defrost; The second detection module 40, for adopting the first defrosting frequency to defrost after the first Preset Time, detects the second defrosting load; The first comparison module 50, the size of loading for comparing the second defrosting load and the first defrosting; The second determination module 60, when being more than or equal to the first defrosting load at the second defrosting load, according to the second defrosting determination of power load second frequency that defrosts; And second control module 70, for adopting the second defrosting frequency to defrost, wherein, the second defrosting frequency is greater than the first defrosting frequency.
In this embodiment, air-conditioner enters after defrosting mode, first defroster detects current defrosting load (the generally mark using defrost temperature and outdoor environment temperature as defrosting load, defrost temperature and outdoor environment temperature all can detect by temperature-sensitive bag), enter the original frequency of defrosting mode according to defrosting determination of power load, after defrosting a period of time, continue to detect defrosting load and adjust in real time defrosting frequency according to defrosting load, and defrost according to defrosting frequency after adjusting.The defroster that adopts this embodiment to provide, can select suitable original frequency to defrost, and can, according to defrosting load adjustment defrosting frequency, meet defrosting requirement in defrost process, has reduced defrosting time, has reduced energy consumption.
In order further to reduce energy consumption, preferably, the first Preset Time is the minimum running time that air-conditioner system runs on defrosting mode, after the minimum time of operation, just detects in real time defrosting load, to adjust in time defrosting frequency.
In order further to reduce defrosting time and to reduce defrosting energy consumption, preferably, this defroster also comprises: the 3rd detection module, for adopting the second defrosting frequency to defrost after the second Preset Time, detects the 3rd defrosting load; The second comparison module, the size of loading for comparing the 3rd defrosting load and the second defrosting; The 3rd determination module, in the time that the 3rd defrosting load is more than or equal to the second defrosting load, according to the 3rd defrosting determination of power load the 3rd defrosting frequency; And the 3rd control module, control air-conditioner after maximum running time and exit defrosting mode for adopting the 3rd defrosting frequency defrost to reach.
Finally introduce the dehumanization method that present embodiment provides.
Fig. 2 is the Defrost method flow chart according to the air-conditioner of first embodiment of the invention, and as shown in Figure 2, this Defrost method comprises that following step S101 is to step S107:
Step S101: detect the first defrosting load.
Step S102: according to the first defrosting determination of power load first frequency that defrosts, this first defrosting frequency is the original frequency that air-conditioner runs on defrosting mode.This deterministic process is calculative determination in real time, also can pre-establish the corresponding relation value of defrosting load and defrosting frequency, frequency and defrosting load correspondence one by one make to defrost, detect after the first defrosting load, directly search corresponding relation and determine the first defrosting frequency, the first defrosting load is corresponding default with the first defrosting frequency.
Step S103: adopt the first defrosting frequency to defrost.
Step S104: adopting the first defrosting frequency to defrost after the first Preset Time, detect the second defrosting load, in order further to reduce energy consumption, preferably, the first Preset Time is the minimum running time that air-conditioner system runs on defrosting mode, after the minimum time of operation, just detect in real time defrosting load, to adjust in time defrosting frequency.
Step S105: the relatively size of the second defrosting load and the first defrosting load, in the time that the second defrosting load is more than or equal to the first defrosting load, execution step S106, otherwise execution step S103, after execution step S103, no longer perform step S104, but adopt the first defrosting frequency to defrost until defrost finishes, the defrosting frequency that adopts less defrosting to load corresponding, has reduced energy consumption.
Step S106: according to the second defrosting determination of power load second frequency that defrosts.This deterministic process is identical with step S102, can calculate in real time, also can the second defrosting load is corresponding default with the second defrosting frequency.
Step S107: adopt the second defrosting frequency to defrost, wherein, the second defrosting frequency is greater than the first defrosting frequency, adopts larger defrosting frequency to reduce defrosting time.
Fig. 3 is the Defrost method flow chart according to the air-conditioner of second embodiment of the invention, as shown in Figure 3, this Defrost method determines according to defrosting load the original frequency that defrosting adopts, when being greater than air-conditioner, defrosting time runs on after defrosting mode minimum 3 minutes running times, again according to defrosting Load Regulation defrosting frequency, concrete logic is as follows:
1. defrosting load Q1, Q2 are set ... Qn, respectively corresponding defrosting frequency f 1, f2 ... fn.
Wherein, defrosting load is determined by defrost temperature and outdoor environment temperature, if T encircles the outdoor environment temperature detecting for outdoor environment temperature-sensitive bag, the Guan Wen of T pipe for detecting near the pipe warming thermometer bulb of heat exchanger position between outdoor heat exchanger and capillary, it is defrost temperature, determine defrosting load according to these 2 temperature, corresponding selection defrosting frequency, for example set:
1) .T ring >=0, T pipe≤-2 o'clock, defrosting load is Q1, corresponding defrosting frequency is f1;
2) .-5≤T encircles < 0, T pipe≤-6 o'clock, and defrosting load is Q2, corresponding defrosting frequency is f2;
3) .-10≤T encircles <-5, T pipe≤-10 o'clock, and defrosting load is Q3, corresponding defrosting frequency is f3;
4) .T ring <-10, T pipe≤-14 o'clock, defrosting load is Q3, corresponding defrosting frequency is f4;
2. couple current defrosting load Q judges, determines the defrosting frequency f adopting according to the size of Q; When defrosting time was greater than after 3 minutes, again defrosting load is judged, if the load of the defrosting after 3 minutes is more than or equal to the load before defrosting, the frequency that defrosts increases kHz on defrosting frequency basis before, and the defrosting load after 6 minutes is judged again, if the load of the defrosting after 6 minutes is more than or equal to defrosting preload, the frequency that defrosts increases kHz again, reach maximum backed off after random defrost 10 minutes running times to the defrost time, frequency no longer changes; If the defrosting after 3 minutes load is less than defrosting preload, defrost frequency remains unchanged to defrost and finishes; If the defrosting after 6 minutes load is less than defrosting preload, maintains defrosting frequency and do not fade to defrost and finish.
3. meet after defrosting exit criteria, exit Defrost operation.
Wherein: the span of n is 1～20.
The span of k is 0～50.
From above description, can find out, the present invention has realized following technique effect: the corresponding relation that increases defrosting load and frequency on the basis of reverse cycle defrosting, to optimize defrosting mode, can be according to the effect of concrete frosting situation adjustment defrosting ability, in meeting defrosting requirement, take lower energy consumption and less time, both can reduce defrosting to the comfort degree heating, also can when defrosting load is little, reduce the power that defrosts.
It should be noted that, can in the computer system such as one group of computer executable instructions, carry out in the step shown in the flow chart of accompanying drawing, and, although there is shown logical order in flow process, but in some cases, can carry out shown or described step with the order being different from herein.
Obviously, those skilled in the art should be understood that, above-mentioned of the present invention each module or each step can realize with general calculation element, they can concentrate on single calculation element, or be distributed on the network that multiple calculation elements form, alternatively, they can be realized with the executable program code of calculation element, thereby, they can be stored in storage device and be carried out by calculation element, or they are made into respectively to each integrated circuit modules, or the multiple modules in them or step are made into single integrated circuit module to be realized.Like this, the present invention is not restricted to any specific hardware and software combination.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (9)
1. a Defrost method for air-conditioner, is characterized in that, comprising:
Detect the first defrosting load;
According to described the first defrosting determination of power load first frequency that defrosts, described the first defrosting frequency is the original frequency that described air-conditioner runs on defrosting mode;
Adopt described the first defrosting frequency to defrost;
Adopting described the first defrosting frequency to defrost after the first Preset Time, detect the second defrosting load;
The size of more described the second defrosting load and described the first defrosting load;
In the time that described the second defrosting load is more than or equal to described the first defrosting load, according to described the second defrosting determination of power load second frequency that defrosts; And
Adopt described the second defrosting frequency to defrost,
Wherein, described the second defrosting frequency is greater than described the first defrosting frequency.
2. Defrost method according to claim 1, is characterized in that, described the first Preset Time is the minimum running time that described air-conditioner runs on described defrosting mode.
3. Defrost method according to claim 2, is characterized in that, after adopting described the second defrosting frequency to defrost, described method also comprises:
Adopting described the second defrosting frequency to defrost after the second Preset Time, detect the 3rd defrosting load;
The size of more described the 3rd defrosting load and described the second defrosting load;
In the time that described the 3rd defrosting load is more than or equal to described the second defrosting load, according to described the 3rd defrosting determination of power load the 3rd defrosting frequency; And
Adopt described the 3rd defrosting frequency to defrost to the maximum running time that reaches described defrosting mode of defrosting mode described in backed off after random.
4. Defrost method according to claim 3, is characterized in that, be 3 minutes described minimum running time, and described the second Preset Time is 6 minutes, and be 10 minutes described maximum running time.
5. Defrost method according to claim 1, is characterized in that, described the first defrosting load is corresponding default with described the first defrosting frequency, and described the second defrosting load is corresponding default with described the second defrosting frequency.
6. a defroster for air-conditioner, is characterized in that, comprising:
First detection module, for detection of the first defrosting load;
The first determination module, for the frequency that defrosts according to described the first defrosting determination of power load first, described the first defrosting frequency is the original frequency that described air-conditioner runs on defrosting mode;
The first control module, for adopting described the first defrosting frequency to defrost;
The second detection module, for adopting the first defrosting frequency to defrost after the first Preset Time, detects the second defrosting load;
The first comparison module, the size for more described the second defrosting load with the first defrosting load;
The second determination module, in the time that described the second defrosting load is more than or equal to described the first defrosting load, according to described the second defrosting determination of power load second frequency that defrosts; And
The second control module, for adopting the second defrosting frequency to defrost, wherein, described the second defrosting frequency is greater than described the first defrosting frequency.
7. defroster according to claim 6, is characterized in that, described the first Preset Time is the minimum running time that described air-conditioner runs on described defrosting mode.
8. defroster according to claim 7, is characterized in that, also comprises:
The 3rd detection module, for adopting described the second defrosting frequency to defrost after the second Preset Time, detects the 3rd defrosting load;
The second comparison module, the size for more described the 3rd defrosting load with described the second defrosting load;
The 3rd determination module, in the time that described the 3rd defrosting load is more than or equal to described the second defrosting load, according to described the 3rd defrosting determination of power load the 3rd defrosting frequency; And
The 3rd control module, exits described defrosting mode for adopting described the 3rd defrosting frequency defrost to reach maximum to control described air-conditioner after running time.
9. an air-conditioner, is characterized in that, comprises the defroster described in any one in claim 6 to 8.
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| CN104180471B (en) * | 2013-05-21 | 2017-02-08 | 珠海格力电器股份有限公司 | Defrosting control method and defrosting control device for air conditioner |
| JP5590195B1 (en) | 2013-07-11 | 2014-09-17 | 株式会社富士通ゼネラル | Air conditioner |
| CN105091435B (en) * | 2014-05-13 | 2018-09-18 | 珠海格力电器股份有限公司 | Defrosting control method |
| CN105318619B (en) * | 2015-10-23 | 2017-11-28 | 珠海格力电器股份有限公司 | Air-conditioning defrosting control method and device |
| CN106765917B (en) * | 2016-12-07 | 2018-12-18 | 珠海格力电器股份有限公司 | A kind of air-conditioner control method and device |
| JP2018204813A (en) * | 2017-05-31 | 2018-12-27 | 三菱重工サーマルシステムズ株式会社 | Control apparatus for air conditioning device, air conditioning device, control method for air conditioning device, and control program for air conditioning device |
| CN108050652A (en) * | 2017-11-24 | 2018-05-18 | Tcl空调器(中山)有限公司 | Air conditioner defrosting control method, air conditioner and storage medium |
| CN108917246A (en) * | 2018-05-21 | 2018-11-30 | 顺德职业技术学院 | The defrosting method of frequency conversion air source hot pump water heater |
| CN109539479B (en) * | 2018-11-30 | 2020-03-06 | 珠海格力电器股份有限公司 | Air conditioner defrosting method and device and air conditioner |
| CN109798633B (en) * | 2019-01-07 | 2021-09-07 | 广东美的暖通设备有限公司 | Control method of air conditioning system and air conditioning system |
| CN114413415B (en) * | 2021-12-15 | 2023-05-12 | 珠海格力电器股份有限公司 | Defrosting control method of air conditioner and controller thereof |
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