CN110410939A - A kind of control method, system and the air-conditioning of outdoor machine of air-conditioner defrosting - Google Patents
A kind of control method, system and the air-conditioning of outdoor machine of air-conditioner defrosting Download PDFInfo
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- CN110410939A CN110410939A CN201910737432.3A CN201910737432A CN110410939A CN 110410939 A CN110410939 A CN 110410939A CN 201910737432 A CN201910737432 A CN 201910737432A CN 110410939 A CN110410939 A CN 110410939A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/41—Defrosting; Preventing freezing
- F24F11/42—Defrosting; Preventing freezing of outdoor units
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/65—Electronic processing for selecting an operating mode
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
- F24F2110/12—Temperature of the outside air
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/20—Humidity
- F24F2110/22—Humidity of the outside air
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2130/00—Control inputs relating to environmental factors not covered by group F24F2110/00
- F24F2130/10—Weather information or forecasts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2140/00—Control inputs relating to system states
- F24F2140/20—Heat-exchange fluid temperature
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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Air Conditioning Control Device (AREA)
Abstract
A kind of control method, system and the air-conditioning of outdoor machine of air-conditioner defrosting, the control method include: to obtain real-time weather conditions, humidity, ambient temperature and outer coil temperature under heating mode；Judged whether to enter defrosting according to the real-time weather conditions, humidity, ambient temperature and outer coil temperature；And determine whether to meet defrosting exit criteria after entering defrosting, defrosting control is exited in time.By increasing the optimal control in relation to the realization of the factor of judgment of weather conditions and humidity for defrosting, still there is good heating effect in the biggish situation of air humidity.
Description
Technical field
The present invention relates to air-conditioning technical field, in particular to the control method of-kind of outdoor machine of air-conditioner defrosting, system and
Air-conditioning.
Background technique
Air-conditioning is in winter heating operation, since outdoor heat exchanger absorbs heat, outdoor heat exchange from outdoor air
Device ambient temperature is lower, and the vapor in air, which can condense to frost, is attached to outdoor heat exchanger surface.If defrost not in time,
The frost of attachment will affect the exchange capability of heat of outdoor heat exchanger, so that air-conditioning heating ability declines, influence the comfort of people.
Existing outdoor machine of air-conditioner mainly detects outdoor environment temperature and external disk temperature by temperature sensor, judges external environment
Whether temperature is lower than a certain specific threshold, and control enters defrosting mode.
Summary of the invention
The present invention at least solves the problems, such as: in the biggish situation of air humidity, such as rainy day or greasy weather, it corresponds to
Frosting situation can be more serious on heating operation condenser, and only carrying out control by the judgement for ambient temperature cannot achieve
Preferable defrosting and heating effect.
To solve the above problems, the present invention provides control method, system and the air-conditioning of a kind of outdoor machine of air-conditioner defrosting.
According to an aspect of the invention, there is provided a kind of control method of outdoor machine of air-conditioner defrosting, comprising: heating mode
Under, obtain real-time weather conditions, humidity, ambient temperature and outer coil temperature；According to the real-time weather conditions, humidity,
Ambient temperature and outer coil temperature judge whether to enter defrosting；And determines whether to meet defrosting into after defrosting and exit item
Part exits defrosting control in time.
By being judged whether to enter defrosting according to real-time weather conditions, humidity, ambient temperature and outer coil temperature, remove
It joined the factor in relation to weather conditions and humidity in ice-lolly part, facilitate on rainy day and humidity is very big in the case that takes pair
The defrosting decision condition (lower limit defrosting condition) answered in favor of timely enter defrosting, to avoid due to humidity it is larger caused by system
When heat operation on condenser frosting it is serious and the problem of defrost not in time；In the case where humidity is relatively small, due to frosting pair
The case where answering is not very serious, therefore takes more harsh defrosting decision condition (height limitation defrosting condition) suitable
(necessary) opportunity enters back into defrosting, and corresponding different weather conditions, humidity carry out different degrees of defrosting condition anticipation, then
Based on ambient temperature and outer coil temperature, determine to enter defrosting and exit to remove according to the threshold condition under different requirements
Frost, it is larger in air humidity by increasing the optimal control in relation to the realization of the factor of judgment of weather conditions and humidity for defrosting
In the case where still have good heating effect.
Further, according to the real-time weather conditions, humidity, ambient temperature and outer coil temperature judge whether into
The method for entering defrosting includes:
Judge whether current weather condition and humidity meet the condition that rainy and humidity is greater than first threshold；
If current weather condition meets the condition that rainy and humidity is greater than first threshold, judge whether to meet lower limit
Defrosting condition and determine whether to enter defrosting, the lower limit defrosting condition is one of the following two kinds condition, and any condition is full
Foot enters defrosting: condition one, the ambient temperature are less than or equal to outer coil pipe described in second threshold and third consecutive time
Temperature is less than third threshold value；Condition two, the ambient temperature are greater than outer coil pipe described in second threshold and continuous 4th time
Temperature is less than the 4th threshold value；
If current weather condition is unsatisfactory for the condition that rainy and humidity is greater than first threshold, judge whether to meet high limit
Defrosting condition processed and determine whether to enter defrosting, the high limitation defrosting condition is one of the following two kinds condition, any condition
Meet and enter defrosting: condition three, the ambient temperature are less than or equal to external disk described in second threshold and continuous 5th time
Tube temperature degree is less than the 5th threshold value；Condition four, the ambient temperature are greater than external disk described in second threshold and continuous 6th time
Tube temperature degree is less than the 6th threshold value；
Wherein, the 4th threshold value < third threshold value < 0, the third time the 4th time >；The 6th threshold value <
5th threshold value < 0, the 6th time of the 5th time >；The 5th threshold value < third threshold value, the 5th time > third
Time；The 4th threshold value of 6th threshold value <, the 4th time of the 6th time >.
In this embodiment, first judge whether current weather condition and humidity meet rainy and humidity and be greater than first threshold
The condition of (for example, 80%), travels further into lower limit defrosting condition under the premise of above-mentioned judging result or high limitation removes
Ice-lolly part and determine whether enter defrosting, rain and humidity be greater than 80% in the case of, in requisition for enter lower limit defrost
Condition is to timely enter defrosting, and in the case of being unsatisfactory for raining and humidity is greater than 80%, corresponding air humidity is smaller, this
When due to situation corresponding to frosting be not it is very serious, take more harsh high limitation defrosting condition with it is suitable (must
Want) opportunity enters back into defrosting, and height limitation defrosting condition and lower limit defrosting condition are all made of ambient temperature and outer coil pipe
Temperature is determined that the difference of the two is the difference that is sized of decision threshold, and height limitation defrosting condition compares lower limit
For defrosting condition, there is lower threshold temperature, and coil temperature is lower than the threshold temperature inside and outside longer time section
Defrosting can just be entered, help to timely enter defrosting in the larger situation of humidity, and in the case where humidity is relatively small must
The opportunity wanted enters defrosting, realizes good heating effect.
Further, the defrosting exit criteria is one of following condition, and any condition, which meets, exits defrosting: continuing
The outer coil temperature is greater than set temperature after first setting duration；Alternatively, continuous defrosting time is greater than the second setting duration,
In, the set temperature is greater than zero, and the first setting duration is less than the second setting duration.
In the present embodiment, the first setting duration is, for example, 2-4min, and set temperature is, for example, 4 DEG C -6 DEG C, when the second setting
Long for example, 8-10min.
Further, different into the condition of defrosting, corresponding defrosting exit criteria difference, when meet the condition one into
When entering to defrost, corresponding defrosting exit criteria are as follows: the outer coil temperature is greater than the 7th temperature after continuing for the 7th time, alternatively,
Continuous defrosting time was greater than for the 8th time；When meeting the entrance of condition two defrosting, corresponding defrosting exit criteria are as follows: continue
The outer coil temperature is greater than the 9th temperature after 9th time, alternatively, continuous defrosting time was greater than for the 8th time；Described in satisfaction
When condition three enters defrosting, corresponding defrosting exit criteria are as follows: the outer coil temperature is greater than the 7th temperature after continuing for the tenth time
Degree, alternatively, continuous defrosting time is greater than eleventh time；When meeting the condition four into when defrosting, corresponding defrosting is exited
Condition are as follows: the outer coil temperature is greater than the 9th temperature after continuing for the 12nd time, alternatively, continuous defrosting time is greater than the 11st
Time；Wherein, the 9th temperature of the 7th temperature <, the 9th time of the 7th time >, the tenth time > the 12nd
Time, the 8th time > eleventh time.
By different into corresponding to different defrosting exit criterias under defrosting condition, based on current weather condition and wet
Degree and the timely degree of corresponding defrosting, exit defrosting condition and are arranged according to following principle: is corresponding for lower limit defrosting condition
More harsh defrosting exit criteria (such as the 8th time was 10min), so that being corresponded within each defrosting control period
It can be realized timely and sufficient defrosting in the biggish situation of humidity；For the high corresponding more loose defrosting of limitation defrosting condition
Exit criteria (such as corresponding eleventh time is 8min), so that correspondence is opposite in humidity within each defrosting control period
Smaller, frosting is not to avoid resource occupation time too long under serious situation very much, can be realized necessary defrosting.
Further, the first threshold is 75%~85%.
Further, the 8th time is 9-10min, for example, 10min, the eleventh time are as follows: 7-8min, example
For example 8min.
According to another aspect of the present invention, a kind of control system of outdoor machine of air-conditioner defrosting is provided, comprising: weather obtains
Module, for obtaining real-time weather conditions；Temperature detecting module, for obtaining real-time ambient temperature and outer coil temperature；
Humidity detecting module, for obtaining real-time humidity；Judgment module, for according to the real-time weather conditions, humidity, external environment
Temperature and outer coil temperature judge whether to enter defrosting and after entering defrosting for determining whether to meet defrosting exit criteria；
And defrosting control module, enter defrosting control for the judgement result according to judgment module or exits defrosting control.
According to a further aspect of the invention, a kind of control system of outdoor machine of air-conditioner defrosting is provided, is mentioned for the present invention
And any control method.
According to a further aspect of the invention, a kind of air-conditioning is provided, any control system referred to including the present invention.
Further, the outer machine condenser back side of the air-conditioning is provided with Temperature Humidity Sensor, is used for while obtaining real-time
Ambient temperature and humidity；The outer machine condenser bottom is provided with external disk temperature sensor, for obtaining outer coil temperature；
The GPRS module of the air-conditioning is for obtaining real-time weather conditions.
The control system and air-conditioning are facilitated by joined the factor in relation to weather conditions and humidity in defrosting condition
Taken on rainy day and in the case that humidity is very big corresponding defrosting decision condition (lower limit defrosting condition) in favor of in time into
Enter defrosting, to avoid due to humidity it is larger caused by heating operation when condenser on frosting is serious and defrosting not in time the problem of；
Taken in the case where humidity is relatively small more harsh defrosting decision condition (height limitation defrosting condition) with it is suitable (must
Want) opportunity enters back into defrosting, and corresponding different weather conditions, humidity carry out different degrees of defrosting condition anticipation, then base
In ambient temperature and outer coil temperature, determines to enter defrosting according to the threshold condition under different requirements and exits defrosting,
By increasing the optimal control in relation to the realization of the factor of judgment of weather conditions and humidity for defrosting, in the biggish feelings of air humidity
Still there is good heating effect under condition.
Detailed description of the invention
Fig. 1 is the control method flow chart of the defrosting of the outdoor machine of air-conditioner according to shown in one embodiment of the invention；
Fig. 2 is the specific embodiment of the corresponding each step of flow chart as shown in Figure 1；
Fig. 3 is the control system block diagram of the defrosting of the outdoor machine of air-conditioner according to shown in one embodiment of the invention.
Description of symbols:
3- control system；
31- weather obtains module；32- temperature detecting module；
33- humidity detecting module；34- judgment module；
35- defrosting control module.
Specific embodiment
To make the above purposes, features and advantages of the invention more obvious and understandable, with reference to the accompanying drawing to the present invention
Specific embodiment be described in detail.
First embodiment
In first exemplary embodiment of the invention, a kind of control method of outdoor machine of air-conditioner defrosting is provided.
Fig. 1 is the control method flow chart of the defrosting of the outdoor machine of air-conditioner according to shown in one embodiment of the invention；Fig. 2 is such as Fig. 1
Shown in the corresponding each step of flow chart specific embodiment.
Shown in referring to Figures 1 and 2, the control method of outdoor machine of air-conditioner defrosting of the invention, comprising:
Step S11: under heating mode, real-time weather conditions, humidity, ambient temperature and outer coil temperature are obtained；
In the present embodiment, the outer machine condenser back side of air-conditioning is provided with Temperature Humidity Sensor, is used for while obtaining outer in real time
Boundary's environment temperature and humidity；The outer machine condenser bottom is provided with external disk temperature sensor, for obtaining outer coil temperature；Institute
The GPRS module for stating air-conditioning obtains module as weather, for obtaining real-time weather conditions.
In other embodiments, it can also be that other can be realized the device of above-mentioned function or module, multiple devices or mould
Block can be integrated into the same module and realize multiple functions, be also possible to multiple submodule and realize a kind of function jointly.
Step S12: according to the real-time weather conditions, humidity, ambient temperature and outer coil temperature judge whether into
Enter defrosting；
Further, according to the real-time weather conditions, humidity, ambient temperature and outer coil temperature judge whether into
The method for entering defrosting includes:
Judge whether current weather condition and humidity meet the condition that rainy and humidity is greater than first threshold；
If current weather condition meets the condition that rainy and humidity is greater than first threshold, judge whether to meet lower limit
Defrosting condition and determine whether to enter defrosting, the lower limit defrosting condition is one of the following two kinds condition, and any condition is full
Foot enters defrosting: condition one, the ambient temperature are less than or equal to outer coil pipe described in second threshold and third consecutive time
Temperature is less than third threshold value；Condition two, the ambient temperature are greater than outer coil pipe described in second threshold and continuous 4th time
Temperature is less than the 4th threshold value；
If current weather condition is unsatisfactory for the condition that rainy and humidity is greater than first threshold, judge whether to meet high limit
Defrosting condition processed and determine whether to enter defrosting, the high limitation defrosting condition is one of the following two kinds condition, any condition
Meet and enter defrosting: condition three, the ambient temperature are less than or equal to external disk described in second threshold and continuous 5th time
Tube temperature degree is less than the 5th threshold value；Condition four, the ambient temperature are greater than external disk described in second threshold and continuous 6th time
Tube temperature degree is less than the 6th threshold value；
Wherein, the 4th threshold value < third threshold value < 0, the third time the 4th time >；The 6th threshold value <
5th threshold value < 0, the 6th time of the 5th time >；The 5th threshold value < third threshold value, the 5th time > third
Time；The 4th threshold value of 6th threshold value <, the 4th time of the 6th time >.
Specifically, referring to shown in Fig. 2, the first threshold is 75%~85%, for example, 80%, institute in an embodiment
Stating second threshold is 0 DEG C, and the third time is 35min, and the third threshold value is -10 DEG C, and the 4th time is 45min,
4th threshold value is -15 DEG C, if under heating mode, current weather is rainy day and air humidity > 80%, is then judged whether
Meet lower limit defrosting condition, the lower limit defrosting condition are as follows: judge the ambient temperature Tao and outer coil temperature Tdp,
If ambient temperature Tao≤0 DEG C, and outer < -10 DEG C of Tdp of the coil temperature of continuous 35min, then enter defrosting；If extraneous
0 DEG C of environment temperature Tao >, and outer < -15 DEG C of Tdp of the coil temperature of continuous 45min, then enter defrosting.In the example, corresponding institute
Stating for the 5th time is 70min, and the 5th threshold value is -15 DEG C, and the 6th time is 60min, and the 6th threshold value is -20
DEG C, if under heating mode, current weather and humidity are unsatisfactory for then judging whether full for rainy day and air humidity > 80% simultaneously
The high limitation defrosting condition of foot, the height limit defrosting condition are as follows: if ambient temperature Tao≤0 DEG C, and continuous 70min external disk
< -15 DEG C of Tdp of tube temperature degree, then enter defrosting；If 0 DEG C of ambient temperature Tao >, and the outer coil temperature Tdp of continuous 60min
< -20 DEG C, then enter defrosting.
In this embodiment, first judge whether current weather condition and humidity meet rainy and humidity and be greater than first threshold
The condition of (for example, 80%), travels further into lower limit defrosting condition under the premise of above-mentioned judging result or high limitation removes
Ice-lolly part and determine whether enter defrosting, rain and humidity be greater than 80% in the case of, in requisition for enter lower limit defrost
Condition is to timely enter defrosting, and in the case of being unsatisfactory for raining and humidity is greater than 80%, corresponding air humidity is smaller, this
When due to situation corresponding to frosting be not it is very serious, take more harsh high limitation defrosting condition with it is suitable (must
Want) opportunity enters back into defrosting, and height limitation defrosting condition and lower limit defrosting condition are all made of ambient temperature and outer coil pipe
Temperature is determined that the difference of the two is the difference that is sized of decision threshold, and height limitation defrosting condition compares lower limit
For defrosting condition, there is lower threshold temperature, and coil temperature is lower than the threshold temperature inside and outside longer time section
Defrosting can just be entered, help to timely enter defrosting in the larger situation of humidity, and in the case where humidity is relatively small must
The opportunity wanted enters defrosting, realizes good heating effect.
Step S13: determine whether to meet defrosting exit criteria after entering defrosting, exit defrosting control in time；
Further, the defrosting exit criteria is one of following condition, and any condition, which meets, exits defrosting: continuing
The outer coil temperature is greater than set temperature after first setting duration；Alternatively, continuous defrosting time is greater than the second setting duration,
In, the set temperature is greater than zero, and the first setting duration is less than the second setting duration.
In the present embodiment, the first setting duration is, for example, 2-4min, and set temperature is, for example, 4 DEG C -6 DEG C, when the second setting
Long for example, 8-10min.
Further, different into the condition of defrosting, corresponding defrosting exit criteria difference, when meet the condition one into
When entering to defrost, corresponding defrosting exit criteria are as follows: the outer coil temperature is greater than the 7th temperature after continuing for the 7th time, alternatively,
Continuous defrosting time was greater than for the 8th time；When meeting the entrance of condition two defrosting, corresponding defrosting exit criteria are as follows: continue
The outer coil temperature is greater than the 9th temperature after 9th time, alternatively, continuous defrosting time was greater than for the 8th time；Described in satisfaction
When condition three enters defrosting, corresponding defrosting exit criteria are as follows: the outer coil temperature is greater than the 7th temperature after continuing for the tenth time
Degree, alternatively, continuous defrosting time is greater than eleventh time；When meeting the condition four into when defrosting, corresponding defrosting is exited
Condition are as follows: the outer coil temperature is greater than the 9th temperature after continuing for the 12nd time, alternatively, continuous defrosting time is greater than the 11st
Time；Wherein, the 9th temperature of the 7th temperature <, the 9th time of the 7th time >, the tenth time > the 12nd
Time, the 8th time > eleventh time.
Optionally, the 8th time is 9-10min, for example, 10min, the eleventh time are as follows: 7-8min, such as
For 8min.
Specifically, referring to shown in Fig. 2, the 7th time is 4min, and the 7th temperature is 4 DEG C, institute in the present embodiment
Stating for the 8th time is 10min, and the condition one enters the corresponding defrosting exit criteria that defrosts are as follows: outer coil temperature Tdp continues
4 DEG C of 4min >, then defrosting, or continuous defrosting time up to 10min are exited, defrosting is just exited greater than 10min；Described 9th
Time is 3min, and the 9th temperature is 6 DEG C, and the condition two enters the corresponding defrosting exit criteria that defrosts are as follows: external disk tube temperature
Degree Tdp continues 6 DEG C of 3min >, then exits defrosting, or continuous defrosting time up to 10min, just exit and remove greater than 10min
Frost；Tenth time is 3min, and the eleventh time is 8min, and the condition three enters the corresponding defrosting that defrosts and exits item
Part are as follows: outer coil temperature Tdp continues 4 DEG C of 3min >, then exits defrosting, or continuous defrosting time up to 8min, be greater than
8min just exits defrosting；12nd time is 2min, and the condition four enters the corresponding defrosting exit criteria that defrosts are as follows: outer
Coil temperature Tdp continues 6 DEG C of 2min >, then exits defrosting, or continuous defrosting time up to 8min, just exit greater than 8min
Defrosting.
By different into corresponding to different defrosting exit criterias under defrosting condition, based on current weather condition and wet
Degree and the timely degree of corresponding defrosting, exit defrosting condition and are arranged according to following principle: is corresponding for lower limit defrosting condition
More harsh defrosting exit criteria (such as the 8th time was 10min), so that being corresponded within each defrosting control period
It can be realized timely and sufficient defrosting in the biggish situation of humidity；For the high corresponding more loose defrosting of limitation defrosting condition
Exit criteria (such as corresponding eleventh time is 8min), so that correspondence is opposite in humidity within each defrosting control period
Smaller, frosting is not to avoid resource occupation time too long under serious situation very much, can be realized necessary defrosting.
In conclusion the control method passes through according to real-time weather conditions, humidity, ambient temperature in the present embodiment
And outer coil temperature judges whether to enter defrosting, joined the factor in relation to weather conditions and humidity in defrosting condition, facilitates
Taken on rainy day and in the case that humidity is very big corresponding defrosting decision condition (lower limit defrosting condition) in favor of in time into
Enter defrosting, to avoid due to humidity it is larger caused by heating operation when condenser on frosting is serious and defrosting not in time the problem of；
In the case where humidity is relatively small, since situation corresponding to frosting is not very seriously, more harsh defrosting to be taken to sentence
Fixed condition (height limitation defrosting condition) is the different weather conditions of correspondence, wet to enter back into defrosting on suitable (necessary) opportunity
Degree carries out different degrees of defrosting condition anticipation, ambient temperature and outer coil temperature is then based on, according under different requirements
Threshold condition determine to enter defrosting and exit defrosting, by increasing in relation to the realization pair of the factor of judgment of weather conditions and humidity
In the optimal control of defrosting, still there is good heating effect in the biggish situation of air humidity.
Second embodiment
In second exemplary embodiment of the invention, a kind of control system of outdoor machine of air-conditioner defrosting is provided.
Fig. 3 is the control system block diagram of the defrosting of the outdoor machine of air-conditioner according to shown in one embodiment of the invention.
Referring to shown in Fig. 3, the control system 3 of outdoor machine of air-conditioner defrosting of the invention, comprising: weather obtains module 31, is used for
Obtain real-time weather conditions；Temperature detecting module 32, for obtaining real-time ambient temperature and outer coil temperature；Humidity Detection
Module 33, for obtaining real-time humidity；Judgment module 34, for according to the real-time weather conditions, humidity, ambient temperature
And outer coil temperature judges whether to enter defrosting and after entering defrosting for determining whether to meet defrosting exit criteria；And
Defrost control module 35, enters defrosting control for the judgement result according to judgment module or exits defrosting control.
In the present embodiment, the control system 3 is for executing control method shown in one embodiment.
The control system helps raining by joined the factor in relation to weather conditions and humidity in defrosting condition
Corresponding defrosting decision condition (lower limit defrosting condition) is taken in the case that it and humidity are very big in favor of timely entering and defrosting,
To avoid due to humidity it is larger caused by heating operation when condenser on frosting it is serious and the problem of defrost not in time；In humidity phase
To taken in lesser situation more harsh defrosting decision condition (height limitation defrosting condition) at suitable (necessary)
Machine enters back into defrosting, and corresponding different weather conditions, humidity carry out different degrees of defrosting condition anticipation, are then based on extraneous ring
Border temperature and outer coil temperature determine to enter defrosting and exit defrosting, pass through increase according to the threshold condition under different requirements
The optimal control for defrosting is realized in relation to the factor of judgment of weather conditions and humidity, in the biggish situation of air humidity still
With good heating effect.
3rd embodiment
In third exemplary embodiment of the invention, provide a kind of air-conditioning, comprising control system of the invention or
Person is for executing control method of the invention.
In the present embodiment, the outer machine condenser back side of the air-conditioning is provided with Temperature Humidity Sensor, for obtaining reality simultaneously
When ambient temperature and humidity；The outer machine condenser bottom is provided with external disk temperature sensor, for obtaining external disk tube temperature
Degree；The GPRS module of the air-conditioning obtains module 31 as weather, for obtaining real-time weather conditions.
The air-conditioning is by increasing the optimal control in relation to the realization of the factor of judgment of weather conditions and humidity for defrosting, in sky
Still there is good heating effect in the biggish situation of air humidity degree.
In conclusion the present invention provides control method, system and the air-conditionings of a kind of defrosting of outdoor machine of air-conditioner, by according to reality
When weather conditions, humidity, ambient temperature and outer coil temperature judge whether to enter defrosting, joined in defrosting condition related
The factor of weather conditions and humidity helps to take corresponding defrosting decision condition in the case where rainy day and very big humidity
(lower limit defrosting condition) in favor of timely enter defrosting, to avoid due to humidity it is larger caused by heating operation when condenser on
The problem of frosting seriously defrosts not in time；In the case where humidity is relatively small, since situation corresponding to frosting is not very tight
Weight, therefore take more harsh defrosting decision condition (height limitation defrosting condition) to enter back on suitable (necessary) opportunity
Defrosting, corresponding different weather conditions, humidity carry out different degrees of defrosting condition anticipation, be then based on ambient temperature and
Outer coil temperature determines to enter defrosting and exits defrosting, by increasing related weather according to the threshold condition under different requirements
The factor of judgment of situation and humidity realizes the optimal control for defrosting, still has in the biggish situation of air humidity good
Heating effect.
Although present disclosure is as above, present invention is not limited to this.Anyone skilled in the art are not departing from this
It in the spirit and scope of invention, can make various changes or modifications, therefore protection scope of the present invention should be with claim institute
Subject to the range of restriction.
Claims (10)
1. a kind of control method of outdoor machine of air-conditioner defrosting characterized by comprising
Under heating mode, real-time weather conditions, humidity, ambient temperature and outer coil temperature are obtained；
Judged whether to enter defrosting according to the real-time weather conditions, humidity, ambient temperature and outer coil temperature；And
Determine whether to meet defrosting exit criteria after into defrosting, exits defrosting control in time.
2. control method according to claim 1, which is characterized in that according to the real-time weather conditions, humidity, extraneous ring
Border temperature and outer coil temperature judge whether that the method into defrosting includes:
Judge whether current weather condition and humidity meet the condition that rainy and humidity is greater than first threshold；
If current weather condition meets the condition that rainy and humidity is greater than first threshold, judge whether to meet lower limit defrosting
Condition and determine whether to enter defrosting, the lower limit defrosting condition is one of the following two kinds condition, and any condition satisfaction is
Into defrosting: condition one, the ambient temperature are less than or equal to outer coil temperature described in second threshold and third consecutive time
Less than third threshold value；Condition two, the ambient temperature are greater than outer coil temperature described in second threshold and continuous 4th time
Less than the 4th threshold value；
If current weather condition is unsatisfactory for the condition that rainy and humidity is greater than first threshold, judge whether that meeting high limitation removes
Ice-lolly part and determine whether to enter defrosting, the high limitation defrosting condition is one of the following two kinds condition, and any condition meets
Enter defrosting: condition three, the ambient temperature are less than or equal to external disk tube temperature described in second threshold and continuous 5th time
Degree is less than the 5th threshold value；Condition four, the ambient temperature are greater than external disk tube temperature described in second threshold and continuous 6th time
Degree is less than the 6th threshold value；
Wherein, the 4th threshold value < third threshold value < 0, the third time the 4th time >；The 6th threshold value < the 5th
Threshold value < 0, the 6th time of the 5th time >；The 5th threshold value < third threshold value, the third time the 5th time >；
The 4th threshold value of 6th threshold value <, the 4th time of the 6th time >.
3. control method according to claim 2, which is characterized in that the defrosting exit criteria is one of following condition,
Any condition, which meets, exits defrosting: the outer coil temperature is greater than set temperature after continuing the first setting duration；Alternatively, even
Continuous defrosting time is greater than the second setting duration, wherein the set temperature is greater than zero, and the first setting duration is less than described the
Two setting durations.
4. control method according to claim 3, which is characterized in that the condition for entering defrosting is different, and corresponding defrosting is moved back
Condition is different out, when meeting the entrance of condition one defrosting, corresponding defrosting exit criteria are as follows: described after continuing for the 7th time
Outer coil temperature is greater than the 7th temperature, alternatively, continuous defrosting time was greater than for the 8th time；Enter defrosting when meeting the condition two
When, corresponding defrosting exit criteria are as follows: the outer coil temperature is greater than the 9th temperature after continuing for the 9th time, alternatively, continuously removing
The white time was greater than for the 8th time；When meeting the entrance of condition three defrosting, corresponding defrosting exit criteria are as follows: when continuing the tenth
Between after the outer coil temperature be greater than the 7th temperature, alternatively, continuous defrosting time is greater than eleventh time；When meeting the condition
When four entrance defrostings, corresponding defrosting exit criteria are as follows: the outer coil temperature is greater than the 9th temperature after continuing for the 12nd time,
Alternatively, continuous defrosting time is greater than eleventh time；Wherein, the 9th temperature of the 7th temperature <, the 7th time >
Nine times, the 12nd time of the tenth time >, the 8th time > eleventh time.
5. control method according to claim 2, which is characterized in that the first threshold is 75%~85%.
6. control method according to claim 4, which is characterized in that the 8th time be 9-10min, the described 11st
Time are as follows: 7-8min.
7. a kind of control system of outdoor machine of air-conditioner defrosting characterized by comprising
Weather obtains module, for obtaining real-time weather conditions；Temperature detecting module, for obtain real-time ambient temperature and
Outer coil temperature；Humidity detecting module, for obtaining real-time humidity；Judgment module, for according to real-time weather conditions, wet
Degree, ambient temperature and outer coil temperature judge whether to enter defrosting and remove after entering defrosting for determining whether to meet
White exit criteria；
And defrosting control module, enter defrosting control for the judgement result according to judgment module or exits defrosting control.
8. a kind of control system of outdoor machine of air-conditioner defrosting, which is characterized in that required described in any one of 1 to 6 for perform claim
Control method.
9. a kind of air-conditioning, which is characterized in that including control system described in claim 7 or 8.
10. a kind of air-conditioning, which is characterized in that including control system as claimed in claim 7, wherein the outer machine of the air-conditioning condenses
The device back side is provided with Temperature Humidity Sensor, for obtaining real-time ambient temperature and humidity simultaneously；The outer machine condenser bottom
Portion is provided with external disk temperature sensor, for obtaining outer coil temperature；The GPRS module of the air-conditioning obtains module as weather,
For obtaining real-time weather conditions.
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| WO2023019959A1 (en) * | 2021-08-17 | 2023-02-23 | 青岛海尔空调器有限总公司 | Control method and control apparatus of air conditioner, and air conditioner |
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