CN108036463A - A kind of Defrost method of air conditioner - Google Patents
A kind of Defrost method of air conditioner Download PDFInfo
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- CN108036463A CN108036463A CN201710997664.3A CN201710997664A CN108036463A CN 108036463 A CN108036463 A CN 108036463A CN 201710997664 A CN201710997664 A CN 201710997664A CN 108036463 A CN108036463 A CN 108036463A
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Abstract
The present invention provides a kind of Defrost method of air conditioner, the described method includes：Detect the pressure value of air conditioner heat-production high-pressure pressure sensor；Corresponding saturation temperature value Pd_t is obtained according to the pressure value；Obtain the outside environment temperature Tao of air conditioner；Detect outdoor unit of the air conditioner temperature Tdef；Judge whether meet defrosting condition between the saturation temperature value Pd_t, outdoor unit temperature Tdef and the outside environment temperature Tao, if satisfied, then entering defrosting mode.Defrost method of the present invention in terms of existing technologies, can start defrosting mode at appropriate time point, accurately be defrosted, improve the effect of defrosting and the usage comfort of user.
Description
Technical field
The present invention relates to air-conditioning technical field, more particularly to a kind of Defrost method of air conditioner.
Background technology
At present, daily necessities of the air-conditioning as people, enter huge numbers of families, but due to the influence of temperature, air-conditioning winter
It is both needed to perform defrosting program during Ji Yunhang.In order to realize good defrosting effect, numerous air-conditioning producers employ different in the industry
Defrost method is detected, but these methods are detected there are common ground all in accordance with low-pressure side parameter, such as outer machine environment temperature sensor
Temperature, the pressure etc. of low pressure sensor detection to judge whether air conditioner meets defrosting condition, and then determine defrosting whether.
Although such method have ignored user's impression, for a user, what it was most paid close attention to certain defrosting effect
It is air-conditioning heating heating effect, and the comfort of oneself is brought during operation of air conditioner, and above-mentioned Defrost method only only accounts for sky
The operation conditions of tune itself, does not consider indoor environment factor, when when often resulting in air-conditioning and being defrosted, air-conditioning heating is ineffective
Situation continue long time, or air-conditioning frequently enters defrosting effect, and heating operation is frequently interrupted, and user is using relaxing
Appropriateness is had a greatly reduced quality.
The content of the invention
In view of this, the present invention is directed to propose a kind of defrosting effect is more reasonable, user's usage comfort higher, experience effect
The Defrost method of more preferable air conditioner.
To reach above-mentioned purpose, the technical proposal of the invention is realized in this way：
A kind of Defrost method of air conditioner, the described method includes：
Detect the pressure value of air conditioner heat-production high-pressure pressure sensor；
Corresponding saturation temperature value Pd_t is obtained according to the pressure value；
Obtain the outside environment temperature Tao of air conditioner；
Detect outdoor unit of the air conditioner temperature Tdef；
Judge whether full between the saturation temperature value Pd_t, outdoor unit temperature Tdef and the outside environment temperature Tao
Sufficient defrosting condition, if satisfied, then entering defrosting mode.
Further, deposited between the saturation temperature value Pd_t, outdoor unit temperature Tdef and the outside environment temperature Tao
In following relation, into defrosting mode：
When air conditioner heating compressor continuous operation time t ∈ [A, B) minute when, continuous t1 minutes detect it is described full
With temperature value Pd_t≤Ki and outdoor unit temperature Tdef≤Ci × Tao- α i+F/ β, then into defrosting mode；
Otherwise, when heating compressor continuous operation time t >=B minutes of air conditioner, continuous t2 minutes detects saturation
Temperature value Pd_t≤Ki or outdoor unit temperature Tdef≤Ci × Tao- α i+F/ β, then into defrosting mode, wherein i take 1 or 2, A,
B, t1, t2, Ki, α i, β, Ci are definite value, and F is the running frequency of current compressor, and A, B can be adjusted setting, α 1 by program
＜ α 2, C1 ＜ C2.
Further, when Tao >=m DEG C of the outside environment temperature, i takes 1, the saturation temperature value Pd_t, outdoor
Meet between machine temperature Tdef and the outside environment temperature Tao：Air conditioner heating compressor continuous operation time t ∈ [A,
B) during minute, continuous t1 minutes detects the saturation temperature value Pd_t≤K1 and outdoor unit temperature Tdef≤C1 × Tao- α 1+
F/ β, then into defrosting mode, m is definite value, -3≤m≤3,30≤A≤60,60≤B≤150,5≤t1≤10,35≤K1≤
40,10≤α 1≤20,15≤β≤20,0.5≤C1≤0.8.
Further, when Tao >=m DEG C of the outside environment temperature, the saturation temperature value Pd_t, outdoor unit temperature
Meet between Tdef and the outside environment temperature Tao：During the heating compressor continuous operation time t of B minutes≤air conditioner, even
Detect saturation temperature value Pd_t≤K or outdoor unit temperature Tdef≤C1 × Tao- α 1+F/ β within continuous t2 minutes, then enter defrosting mould
Formula, wherein -3≤m≤3,30≤A≤60,60≤B≤150,1≤t2≤5,35≤K1≤40,10≤α 1≤20,15≤β≤
20,0.5≤C1≤0.8.
Further, as the outside environment temperature Tao ＜ m DEG C, i takes 2, the saturation temperature value Pd_t, outdoor
Meet between machine temperature Tdef and the outside environment temperature Tao：Air conditioner heating compressor continuous operation time t ∈ [A,
B) during minute, continuous t1 minutes detect system high pressure pressure correspond to saturation temperature value Pd_t≤K2 and outdoor unit temperature Tdef≤
C2 × Tao- α 2+F/ β, then into defrosting mode, wherein m is definite value, -3≤m≤3,30≤A≤60,60≤B≤150,5≤t1
≤ 10,35≤K2≤40,10≤α 2≤20,15≤β≤20,0.5≤C2≤1.0.
Further, as the outside environment temperature Tao ＜ m DEG C, the saturation temperature value Pd_t, outdoor unit temperature
Meet between Tdef and the outside environment temperature Tao：During the heating compressor continuous operation time t of B minutes≤air conditioner, even
Detect saturation temperature value Pd_t≤K2 or outdoor unit temperature Tdef≤C2 × Tao- α 2+F/ β within continuous t2 minutes, then enter defrosting mould
Formula, wherein -3≤m≤3,30≤A≤60,60≤B≤150,1≤t2≤5,30≤K2≤35,10≤α 2≤20,15≤β≤
20,0.5≤C2≤0.8.
Further, the corresponding saturation temperature value Pd_t of the pressure value is obtained by look-up table.
Further, the outdoor unit temperature Tdef is the outer machine heat exchanger coil temperature of air conditioner.
A kind of air conditioner using above-mentioned Defrost method removes defrosting system, the system comprises：
First detection module, for detecting the pressure value of air conditioner heat-production high-pressure pressure sensor；
Modular converter, for the pressure value to be converted into corresponding saturation temperature value Pd_t；
Second detection module, for obtaining the outside environment temperature Tao of air conditioner；
3rd detection module, for detecting outdoor unit of the air conditioner temperature Tdef；
Judgment module, for judging the saturation temperature value Pd_t, outdoor unit temperature Tdef and the outside environment temperature
Whether meet defrosting condition between degree Tao, if satisfied, then entering defrosting mode.
Further, pressure-saturation temperature conversion table is stored with the modular converter, the modular converter is by tabling look-up
Obtain the corresponding saturation temperature value Pd_t of high-pressure；The outdoor unit temperature Tdef is the outer machine heat exchanger coil pipe temperature of air conditioner
Degree.
Relative to the prior art, Defrost method of the present invention and corresponding system have the advantage that：
(1) Defrost method of the present invention introduces comfort relevant parameter --- heating high-pressure value, pass through by
High-voltage value judges whether low-pressure side parameter is combined and is defrosted, and overcomes traditional Defrost method and ignores air conditioner indoor environment
The influence that parameter determines defrosting, causes defrosting operation in the past to start too late, the generation for the phenomenon that outer machine heat exchanger often freezes,
Simultaneously because the corresponding saturation temperature of the pressure value is indoor heating temperature, user experience comfort level can be considered well, from
And make it that defrosting effect is more preferable.And it is corresponding except defrosting system is then also therefore under heating operation state, can be appropriate
Time point entrance defrosting, avoided complete entrance defrosting from causing outer machine heat exchanger to freeze, defrost sordid problem.
(2) it is of the present invention from power by the way that high-pressure value is converted into corresponding saturation temperature value, and by saturation temperature
Angle value is compared with setting value, and the setting value is related to the comfortable sexual experience of user, in combination with outer machine heat exchanger coil pipe temperature
Degree carries out defrosting judgement, while indoor heating namely on high-tension side user's comfort, security is ensured, eliminates low
Side senser is pressed, the substitute is with defrost temperature, i.e., outer machine heat exchanger coil temperature simulation calculates low pressure value, same
Deng or lower cost under the premise of, meet defrosting stability requirement, and combine high-pressure, reduce invalid heating fortune to the greatest extent
OK, the increase effectively heating time, unit work efficiency is improved.
Brief description of the drawings
The attached drawing for forming the part of the present invention is used for providing a further understanding of the present invention, schematic reality of the invention
Apply example and its explanation is used to explain the present invention, do not form inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 is the defrosting condition schematic diagram described in the embodiment of the present invention.
Embodiment
It should be noted that in the case where there is no conflict, the feature in embodiment and embodiment in the present invention can phase
Mutually combination.
Below with reference to the accompanying drawings and the present invention will be described in detail in conjunction with the embodiments.
As Fig. 1 shows the defrosting flow of air conditioner, corresponding Defrost method is as follows：
The pressure value of air conditioner heat-production high-pressure pressure sensor is detected, and corresponding saturation temperature value is obtained according to pressure value
Pd_t；The saturation temperature value can be obtained especially by inquiry pressure-saturation temperature table, and the table is total according to practical experience by engineer
Knot obtains；
Obtain the outside environment temperature Tao of air conditioner；
Detect outdoor unit of the air conditioner temperature Tdef；For the corresponding objects of outdoor unit temperature Tdef there are a variety of, operator can
Choose as the case may be, select outer machine heat exchanger coil temperatures of the outdoor unit temperature Tdef for air conditioner herein；
Judge to remove with the presence or absence of following between saturation temperature value Pd_t, outdoor unit temperature Tdef and outside environment temperature Tao
Ice-lolly part, if in the presence of into defrosting mode：
When air conditioner heating compressor continuous operation time t ∈ [A, B) minute when, detected there are continuous t1 minutes full
With temperature value Pd_t≤Ki and outdoor unit temperature Tdef≤Ci × Tao- α i+F/ β, alternatively, when air conditioner heating compressor connect
During continuous duration of runs t >=B minute, there are continuous t2 minutes detect saturation temperature value Pd_t≤Ki or outdoor unit temperature Tdef≤
Ci × Tao- α i+F/ β, it is definite value that wherein i, which takes 1 or 2, A, B, t1, t2, Ki, α i, β, Ci, and F is the operation frequency of current compressor
Rate, A, B can be adjusted setting, α 1 ＜ α 2, C1 ＜ C2 by program.
Specifically, further analysis is obtained when Tao >=m DEG C of outside environment temperature, i takes 1, saturation temperature value Pd_t,
Meet between outdoor unit temperature Tdef and outside environment temperature Tao：Air conditioner heating compressor continuous operation time t ∈ [A,
B) during minute, continuous t1 minutes detects saturation temperature value Pd_t≤K1 and outdoor unit temperature Tdef≤C1 × Tao- α 1+F/ β,
Then entering defrosting mode, m is definite value, -3≤m≤3,30≤A≤60,60≤B≤150,5≤t1≤10,35≤K1≤40,10
≤ α 1≤20,15≤β≤20,0.5≤C1≤0.8；
Saturation temperature value Pd_t, outdoor unit temperature Tdef and outside environment temperature when Tao >=m DEG C of outside environment temperature
Meet between degree Tao：During the heating compressor continuous operation time t of B minutes≤air conditioner, continuous t2 minutes detects saturation temperature
Value Pd_t≤K or outdoor unit temperature Tdef≤C1 × Tao- α 1+F/ β, then into defrosting mode, wherein -3≤m≤3,30≤A≤
60,60≤B≤150,1≤t2≤5,35≤K1≤40,10≤α 1≤20,15≤β≤20,0.5≤C1≤0.8；
As outside environment temperature Tao ＜ m DEG C, i takes 2, saturation temperature value Pd_t, outdoor unit temperature Tdef and outside
Meet between environment temperature Tao：Air conditioner heating compressor continuous operation time t ∈ [A, B) minute when, it is continuous t1 minutes detection
Saturation temperature value Pd_t≤K2 and outdoor unit temperature Tdef≤C2 × Tao- α 2+F/ β are corresponded to system high pressure pressure, then enters and removes
White pattern, wherein m are definite value, -3≤m≤3,30≤A≤60,60≤B≤150,5≤t1≤10,35≤K2≤40,10≤α 2
≤ 20,15≤β≤20,0.5≤C2≤1.0；
As outside environment temperature Tao ＜ m DEG C, saturation temperature value Pd_t, outdoor unit temperature Tdef and outside environment
Meet between temperature Tao：During the heating compressor continuous operation time t of B minutes≤air conditioner, continuous t2 minutes detects saturation temperature
Angle value Pd_t≤K2 or outdoor unit temperature Tdef≤C2 × Tao- α 2+F/ β, then into defrosting mode, wherein -3≤m≤3,30≤
A≤60,60≤B≤150,1≤t2≤5,30≤K2≤35,10≤α 2≤20,15≤β≤20,0.5≤C2≤0.8.
Opposite with this method is that a kind of air conditioner of protection removes defrosting system, which includes first detection module, for examining
Survey the pressure value of air conditioner heat-production high-pressure pressure sensor；Modular converter, for the pressure according to storage-saturation temperature table, leads to
Cross lookup table mode and pressure value is converted into corresponding saturation temperature value Pd_t；Second detection module, for obtaining the room of air conditioner
Outside environment temperature Tao；3rd detection module, for detecting the outer machine heat exchanger coil temperature Tdef of air conditioner；And judge
Module, for judging whether meet to remove ice-lolly between saturation temperature value Pd_t, outdoor unit temperature Tdef and outside environment temperature Tao
Part, if satisfied, then entering defrosting mode.And the condition that specific three meets is described referring to preceding method, details are not described herein again.
In order to reduce cost, the present invention uses defrost temperature, i.e., outer machine heat exchanger coil temperature simulation calculates low pressure
Value, under the premise of equal or lower cost, can meet the stability requirement that defrosts, and combine high-pressure, and it is invalid to reduce to the greatest extent
Heating operation, increases the effectively heating time, improves unit work efficiency.
In conjunction with the corresponding parameter value of actual conditions, Defrost method is described further.
Start shooting in air-conditioning heating pattern and heat compressor start and start timing, take Tao=5 DEG C of outside environment temperature, when
30 minutes≤heating compressor continuous operation time ＜ after sixty minutes, it is full to detect that system high pressure pressure is corresponded at continuous 5 minutes
With temperature value Pd_t≤35 DEG C and outer machine heat exchanger coil temperature Tdef≤0.5 × 5-15+80/15, air-conditioning, which enters, at this time defrosts
Pattern.
The present invention obtains indoor unit temperature by introducing heating high-pressure value, and heating high-pressure and low-pressure side are joined
Number, which is combined whether defrosting, to be judged, traditional Defrost method can be overcome to ignore what air conditioner indoor environment parameter determined defrosting
Problem, easy to defrost, operation can start on time, so as to melt the icing of outer machine heat exchanger；Simultaneously because the pressure value is corresponding full
It is indoor heating temperature with temperature, can will be used for Experience Degree well and include reference, so that defrosting effect is more preferable.Together
When, from power by the way that high-pressure value is converted into corresponding saturation temperature value, and by saturation temperature value compared with setting value,
And the setting value is related to the comfortable sexual experience of user, defrosting judgement is carried out in combination with outer machine heat exchanger coil temperature, can protected
While demonstrate,proving indoor heating namely on high-tension side user's comfort, security, cancel low-side sensor, with defrost temperature
Replace, i.e., outer machine heat exchanger coil temperature simulation calculates low pressure value, can be full under the premise of equal or lower cost
Foot defrosting stability requirement, and high-pressure is combined, reduce invalid heating operation to the greatest extent, increase the effectively heating time, improve
Unit work efficiency.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
With within principle, any modification, equivalent replacement, improvement and so on, should all be included in the protection scope of the present invention god.
Claims (10)
- A kind of 1. Defrost method of air conditioner, it is characterised in that the described method includes：Detect the pressure value of air conditioner heat-production high-pressure pressure sensor；Corresponding saturation temperature value Pd_t is obtained according to the pressure value；Obtain the outside environment temperature Tao of air conditioner；Detect outdoor unit of the air conditioner temperature Tdef；Judge whether meet to remove between the saturation temperature value Pd_t, outdoor unit temperature Tdef and the outside environment temperature Tao Ice-lolly part, if satisfied, then entering defrosting mode.
- 2. the Defrost method of air conditioner according to claim 1, it is characterised in that the saturation temperature value Pd_t, outdoor There are during following relation between machine temperature Tdef and the outside environment temperature Tao, into defrosting mode：When air conditioner heating compressor continuous operation time t ∈ [A, B) minute when, continuous t1 minutes detects the saturation temperature Angle value Pd_t≤Ki and outdoor unit temperature Tdef≤Ci × Tao- α i+F/ β, then into defrosting mode；Otherwise, when heating compressor continuous operation time t >=B minutes of air conditioner, continuous t2 minutes detects saturation temperature Value Pd_t≤Ki or outdoor unit temperature Tdef≤Ci × Tao- α i+F/ β, then into defrosting mode, wherein i take 1 or 2, A, B, t1, T2, Ki, α i, β, Ci are definite value, and F is the running frequency of current compressor, and A, B can be adjusted setting by program, 1 ＜ α 2 of α, C1 ＜ C2.
- 3. the Defrost method of air conditioner according to claim 2, it is characterised in that as the outside environment temperature Tao >=m DEG C when, i takes 1, meets between the saturation temperature value Pd_t, outdoor unit temperature Tdef and the outside environment temperature Tao： Air conditioner heating compressor continuous operation time t ∈ [A, B) minute when, continuous t1 minutes detects the saturation temperature value Pd_t≤K1 and outdoor unit temperature Tdef≤C1 × Tao- α 1+F/ β, then into defrosting mode, m is definite value, -3≤m≤3,30≤ A≤60,60≤B≤150,5≤t1≤10,35≤K1≤40,10≤α 1≤20,15≤β≤20,0.5≤C1≤0.8.
- 4. the Defrost method of air conditioner according to claim 3, it is characterised in that the outside environment temperature Tao >=m DEG C when, meet between the saturation temperature value Pd_t, outdoor unit temperature Tdef and the outside environment temperature Tao：B minutes≤empty When adjusting the heating compressor continuous operation time t of device, continuous t2 minutes detects saturation temperature value Pd_t≤K or outdoor unit temperature Tdef≤C1 × Tao- α 1+F/ β, then into defrosting mode, wherein -3≤m≤3,30≤A≤60,60≤B≤150,1≤t2≤ 5,35≤K1≤40,10≤α 1≤20,15≤β≤20,0.5≤C1≤0.8.
- 5. the Defrost method of the air conditioner according to any one of claim 2-4, it is characterised in that when the outdoor side ring During the temperature Tao ＜ m DEG C of border, i takes 2, the saturation temperature value Pd_t, outdoor unit temperature Tdef and the outside environment temperature Meet between Tao：Air conditioner heating compressor continuous operation time t ∈ [A, B) minute when, continuous t1 minutes detects system height Pressure pressure corresponds to saturation temperature value Pd_t≤K2 and outdoor unit temperature Tdef≤C2 × Tao- α 2+F/ β, then into defrosting mode, Wherein m is definite value, -3≤m≤3,30≤A≤60,60≤B≤150,5≤t1≤10,35≤K2≤40,10≤α 2≤20,15 ≤ β≤20,0.5≤C2≤1.0.
- 6. the Defrost method of air conditioner according to claim 5, it is characterised in that as the outside environment temperature Tao During ＜ m DEG C, meet between the saturation temperature value Pd_t, outdoor unit temperature Tdef and the outside environment temperature Tao：B minutes During the heating compressor continuous operation time t of≤air conditioner, continuous t2 minutes detects saturation temperature value Pd_t≤K2 or outdoor Machine temperature Tdef≤C2 × Tao- α 2+F/ β, then into defrosting mode, wherein -3≤m≤3,30≤A≤60,60≤B≤150,1 ≤ t2≤5,30≤K2≤35,10≤α 2≤20,15≤β≤20,0.5≤C2≤0.8.
- 7. the Defrost method of air conditioner according to claim 6, it is characterised in that：The pressure value pair is obtained by look-up table The saturation temperature value Pd_t answered.
- 8. the Defrost method of air conditioner according to claim 7, it is characterised in that：The outdoor unit temperature Tdef is air-conditioning The outer machine heat exchanger coil temperature of device.
- 9. a kind of air conditioner of Defrost method using any one of claim 2-8 removes defrosting system, it is characterised in that institute The system of stating includes：First detection module, for detecting the pressure value of air conditioner heat-production high-pressure pressure sensor；Modular converter, for the pressure value to be converted into corresponding saturation temperature value Pd_t；Second detection module, for obtaining the outside environment temperature Tao of air conditioner；3rd detection module, for detecting outdoor unit of the air conditioner temperature Tdef；Judgment module, for judging the saturation temperature value Pd_t, outdoor unit temperature Tdef and the outside environment temperature Tao Between whether meet defrosting condition, if satisfied, then entering defrosting mode.
- 10. air conditioner according to claim 9 removes defrosting system, it is characterised in that：Be stored with the modular converter pressure- Saturation temperature conversion table, the modular converter obtain the corresponding saturation temperature value Pd_t of high-pressure by tabling look-up；The outdoor Machine temperature Tdef is the outer machine heat exchanger coil temperature of air conditioner.
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| CN108870634A (en) * | 2018-07-20 | 2018-11-23 | 宁波奥克斯电气股份有限公司 | Air conditioning filter control method, device and air conditioner |
| CN110470003A (en) * | 2019-08-02 | 2019-11-19 | 青岛海尔空调器有限总公司 | Control method and device, air-conditioning for air-conditioner defrosting |
| 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 |
| CN111207486A (en) * | 2020-01-14 | 2020-05-29 | 珠海格力电器股份有限公司 | Intelligent defrosting control method for air conditioner, computer readable storage medium and air conditioner |
| CN113503621A (en) * | 2021-07-21 | 2021-10-15 | 珠海格力电器股份有限公司 | Air conditioner defrosting control method, air conditioner and computer readable storage medium |
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| CN111207486A (en) * | 2020-01-14 | 2020-05-29 | 珠海格力电器股份有限公司 | Intelligent defrosting control method for air conditioner, computer readable storage medium and air conditioner |
| CN113503621A (en) * | 2021-07-21 | 2021-10-15 | 珠海格力电器股份有限公司 | Air conditioner defrosting control method, air conditioner and computer readable storage medium |
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| CN108036463B (en) | 2020-07-10 |
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