CN103542651B - A kind of control method of heat pump air conditioner defrosting - Google Patents
A kind of control method of heat pump air conditioner defrosting Download PDFInfo
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- CN103542651B CN103542651B CN201310374741.1A CN201310374741A CN103542651B CN 103542651 B CN103542651 B CN 103542651B CN 201310374741 A CN201310374741 A CN 201310374741A CN 103542651 B CN103542651 B CN 103542651B
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Abstract
The invention discloses the control method of a kind of heat pump air conditioner defrosting. Its scheme is: in heating operation, first sets compressor continuous operating time Tn, as compressor continuous operating time TnWhen reaching setting value, air conditioning system enters defrosting mode, and records defrosting time t, it is characterised in that the compressor continuous operating time T in next cyclen+1Defrosting time t according to the previous cycle determines. The present invention can rationally defrost, and improves the heating effect of air-conditioner.
Description
Technical field
The present invention relates to a kind of air-conditioner defrosting method, particularly relate to the control method of a kind of heat pump air conditioner defrosting.
Background technology
Air conditioning system is when heating operation, outdoor heat exchanger is as absorbing heat in vaporizer outdoor environment, its evaporating temperature is lower than outdoor environment temperature, when evaporating temperature is lower than the freezing point of outdoor environment, steam in air can condense and frosting at heat exchanger surface, heat exchanger frosting can increase resistance when air flows through heat exchanger, reduce air mass flow, heat exchanger frosting too increases heat exchange thermal resistance, this two aspect all reduces the caloric receptivity of outdoor heat exchange, heating effect is deteriorated, therefore air conditioning system is when doing heating operation, if outdoor heat exchanger frosting, frost should be melted.
Air conditioning system defrosts air-conditioning generally to transfer to refrigeration mode and close indoor set blower fan and defrosts, and when defrosting, air-conditioner can not provide heat to room, and needs to consume power. Further, air-conditioner defrosting is excessively frequent, it is necessary to consume too much electric energy for Defrost operation, also resulting in and heat discontinuously, room temperature fluctuates, and does not defrost for a long time, and outdoor heat exchanger heat transfer effect is poor, can cause that again heating effect is poor.
Summary of the invention
The present invention mainly provides the control method that a kind of heat pump air conditioner defrosts, it is possible to rationally defrosts, improves the heating effect of air-conditioner.
The above-mentioned technical problem of the present invention is addressed mainly by following technical proposals: in heating operation, first sets compressor continuous operating time Tn, as compressor continuous operating time TnWhen reaching setting value, air conditioning system enters defrosting mode, and records defrosting time t, it is characterised in that the compressor continuous operating time T in next cyclen+1Defrosting time t according to the previous cycle determines. The present invention, when first entering into heating operation, determines the heating operation time according to outdoor environment temperature, and the heating operation time afterwards is determined according to previous defrosting time.
As preferably, as t > Xmin, the described compressor continuous operating time T in next cyclen+1At previous cycle compressor continuous operating time TnBasis on increase Ymin;
As t≤Xmin, the described compressor continuous operating time T in next cyclen+1At previous cycle compressor continuous operating time TnBasis on reduce Ymin.
As preferably, described Xmin is 4min to 8min, Ymin is 8min to 12min.
As preferably, described defrosting time t is that when entering defrosting, compressor is opened into the time that defrosting terminates.
As preferably, described compressor continuous operating time TnCompressor continuous operating time T when first entering into defrosting including air-conditioning1, when air conditioning system enters heating operation, air conditioning system is by detecting outdoor environment temperature TrDetermine that described air-conditioning first enters into compressor continuous operating time T during defrosting1。
As preferably, working as TrWhen >=8 DEG C, described air-conditioning first enters into compressor continuous operating time T during defrosting1For 60min;
As 0 DEG C of < TrDuring < 8 DEG C, described air-conditioning first enters into compressor continuous operating time T during defrosting1For 80min;
Work as TrWhen≤0 DEG C, described air-conditioning first enters into compressor continuous operating time T during defrosting1For 80min.
As preferably, when after air conditioning system translative mode or shutdown, when entering back into heating operation, redefining air-conditioning and first enter into compressor continuous operating time T during defrosting1。
As preferably, described defrosting mode is: compressor and the inside and outside blower fan of air conditioning system are out of service, and by cross valve power-off, the compressor that reruns carries out Defrost operation.
As preferably, when outer disk temperature reaches 12 DEG C, air conditioning system judges that defrosting eliminates, and compressor is out of service, and air conditioning system transfers normal heating operation to.
The present invention brings and provides the benefit that, the present invention can accomplish when easy frosting that the heating operation time is short, it is not easy to when frosting, the heating operation time is long so that system rationally defrosts, and improves the heating effect of air-conditioner.
Accompanying drawing explanation
Accompanying drawing 1 is a kind of control flow schematic diagram of the present invention.
Detailed description of the invention
By the examples below, and in conjunction with accompanying drawing, technical scheme is described in further detail.
Embodiment: the control method of a kind of heat pump air conditioner defrosting of the present embodiment is as it is shown in figure 1, in heating operation, first set compressor continuous operating time Tn, as compressor continuous operating time TnWhen reaching setting value, air conditioning system is entered defrosting mode by heating operation, and records defrosting time t, the compressor continuous operating time T in next cyclen+1Defrosting time t according to the previous cycle determines, so that it is determined that the heating operation time.
Wherein, defrosting time t is that when entering defrosting, compressor is opened into the time that defrosting terminates.
Defrosting mode is: compressor and the inside and outside blower fan of air conditioning system are out of service, and by cross valve power-off, the compressor that reruns carries out Defrost operation.
Compressor continuous operating time TnAlso include air-conditioning and first enter into compressor continuous operating time T during defrosting1, when air conditioning system enters heating operation, air conditioning system is by detecting outdoor environment temperature TrDetermine that air-conditioning first enters into compressor continuous operating time T during defrosting1。
Concrete rate-determining steps is as follows:
Step S1: during heating operation, detection detection outdoor environment temperature TrAnd judge that air-conditioning first enters into compressor continuous operating time T during defrosting1。
Work as TrWhen >=8 DEG C, air-conditioning first enters into compressor continuous operating time T during defrosting1For 60min;
As 0 DEG C of < TrDuring < 8 DEG C, air-conditioning first enters into compressor continuous operating time T during defrosting1For 80min;
Work as TrWhen≤0 DEG C, air-conditioning first enters into compressor continuous operating time T during defrosting1For 80min.
Step S2: compressor continuous operating time T1。
Step S3: the compressor continuous operating time T when air-conditioning first enters into defrosting1When reaching setting value, air conditioning system starts defrosting mode and defrosts, when prison detects that outer disk temperature reaches 12 DEG C, namely after thinking that outdoor heat exchanger frost eliminates, compressor is out of service, air conditioning system transfers normal heating operation, record defrosting time t now to, and now period 1 defrosting terminates.
Step S4: set the compressor continuous operating time in next cycle according to the defrosting time t in previous cycle.
As t > 6min, the compressor continuous operating time T in next cyclen+1At previous cycle compressor continuous operating time TnBasis on increase 10min;
As t≤6min, the compressor continuous operating time T in next cyclen+1At previous cycle compressor continuous operating time TnBasis on reduce 10min.
It is again introduced into step S2: compressor continuous operating time T2。
Compressor continuous operating time T when second round2When reaching setting value, namely T2=T1+ 10min or T2=T1During-10min, running according to step S3, air conditioning system starts defrosting mode and defrosts, when prison detects that outer disk temperature reaches 12 DEG C, after namely thinking that outdoor heat exchanger frost eliminates, compressor is out of service, air conditioning system transfers normal heating operation, record defrosting time t now to.
Now it is again introduced into step S4, sets the compressor continuous operating time T of period 3 according to the defrosting time t recorded second round3, so circulate, reach the purpose of rationally defrosting.
When after air conditioning system translative mode or shutdown, when entering back into heating operation, redefine air-conditioning and first enter into compressor continuous operating time T during defrosting1. This air conditioning system translative mode does not include the switching heating and freezing in defrosting mode.
It is described as far as preferred embodiment of the present invention above, but is not to be construed as limiting the scope of the invention. The present invention is not only limited to above example, and its concrete structure or shape allow to change. In a word, protection scope of the present invention should include those apparent conversion or replacement and remodeling to those skilled in the art.
Claims (8)
1. a control method for heat pump air conditioner defrosting, in heating operation, first sets compressor continuous operating time Tn, as compressor continuous operating time TnWhen reaching setting value, air conditioning system enters defrosting mode, and records defrosting time t, it is characterised in that the compressor continuous operating time T in next cyclen+1Defrosting time t according to the previous cycle determines,
As t > Xmin, the described compressor continuous operating time T in next cyclen+1The basis of previous cycle compressor continuous operating time Tn increases Ymin;
As t≤Xmin, the described compressor continuous operating time T in next cyclen+1The basis of previous cycle compressor continuous operating time Tn reduces Ymin.
2. the control method of a kind of heat pump air conditioner according to claim 1 defrosting, it is characterised in that described Xmin is 4min to 8min, Ymin is 8min to 12min.
3. the control method of a kind of heat pump air conditioner according to claim 1 defrosting, it is characterised in that described defrosting time t is that when entering defrosting, compressor is opened into the time that defrosting terminates.
4. the control method of a kind of heat pump air conditioner according to claim 1 defrosting, it is characterised in that described compressor continuous operating time TnCompressor continuous operating time T when first entering into defrosting including air-conditioning1, when air conditioning system enters heating operation, air conditioning system is by detecting outdoor environment temperature TrDetermine that described air-conditioning first enters into compressor continuous operating time T during defrosting1。
5. the control method of a kind of heat pump air conditioner according to claim 4 defrosting, it is characterised in that
Work as TrWhen >=8 DEG C, described air-conditioning first enters into compressor continuous operating time T during defrosting1For 60min;
As 0 DEG C of < TrDuring < 8 DEG C, described air-conditioning first enters into compressor continuous operating time T during defrosting1For 80min;
Work as TrWhen≤0 DEG C, described air-conditioning first enters into compressor continuous operating time T during defrosting1For 80min.
6. the control method of a kind of heat pump air conditioner defrosting according to claim 4 or 5, it is characterised in that when after air conditioning system translative mode or shutdown, when entering back into heating operation, redefine air-conditioning and first enter into compressor continuous operating time T during defrosting1。
7. the control method of a kind of heat pump air conditioner according to claim 1 defrosting, it is characterised in that described defrosting mode is: compressor and the inside and outside blower fan of air conditioning system are out of service, and by cross valve power-off, the compressor that reruns carries out Defrost operation.
8. the control method of a kind of heat pump air conditioner according to claim 1 defrosting, it is characterised in that when outer disk temperature reaches 12 DEG C, air conditioning system judges that defrosting eliminates, and compressor is out of service, and air conditioning system transfers normal heating operation to.
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| CN201310374741.1A CN103542651B (en) | 2013-08-26 | 2013-08-26 | A kind of control method of heat pump air conditioner defrosting |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108036556A (en) * | 2017-12-22 | 2018-05-15 | 珠海恩盛能源科技有限公司 | One kind defrosting and the relevant heat pump control mode of ambient temperature and humidity |
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| CN107449105B (en) * | 2017-07-05 | 2019-07-02 | 青岛海尔空调器有限总公司 | A kind of control method of air-conditioner defrosting |
| CN108800418A (en) * | 2018-06-13 | 2018-11-13 | 珠海格力电器股份有限公司 | air conditioner defrosting control method and air conditioner controller |
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| CN109724212B (en) * | 2018-12-19 | 2021-03-16 | 青岛海尔空调器有限总公司 | Air conditioner defrosting control method |
| CN110848883A (en) * | 2019-11-27 | 2020-02-28 | 无锡同方人工环境有限公司 | Control method, control device and control system for defrosting of air conditioner |
| CN112032941A (en) * | 2020-08-25 | 2020-12-04 | 海信（山东）空调有限公司 | Control method of air conditioner |
| CN113654193B (en) * | 2021-07-30 | 2023-02-17 | 青岛海尔空调器有限总公司 | Method and device for defrosting control of air conditioner and air conditioner |
| CN115435452A (en) * | 2022-09-26 | 2022-12-06 | 青岛海尔空调器有限总公司 | Defrost control method, device, equipment and computer storage medium |
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Effective date of registration: 20180118 Address after: 315191 Yinzhou District Province, Ningbo City, Jiang Shan town on the village of summer ho Patentee after: AUX air conditioning Limited by Share Ltd Address before: 315191 Zhejiang city of Ningbo province Jiangshan town Yinzhou District Mingguang Road No. 1166 Patentee before: Ningbo AUX Group. |
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