CN106440592A - Adjusting method and adjusting system of air conditioner electronic expansion valve, and air conditioner - Google Patents
Adjusting method and adjusting system of air conditioner electronic expansion valve, and air conditioner Download PDFInfo
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- CN106440592A CN106440592A CN201610991189.4A CN201610991189A CN106440592A CN 106440592 A CN106440592 A CN 106440592A CN 201610991189 A CN201610991189 A CN 201610991189A CN 106440592 A CN106440592 A CN 106440592A
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- regulation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
-
- 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
-
- 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
-
- 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
-
- 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
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2600/00—Control issues
- F25B2600/25—Control of valves
- F25B2600/2513—Expansion valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2700/00—Sensing or detecting of parameters; Sensors therefor
- F25B2700/21—Temperatures
- F25B2700/2115—Temperatures of a compressor or the drive means therefor
- F25B2700/21152—Temperatures of a compressor or the drive means therefor at the discharge side of the compressor
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Signal Processing (AREA)
- Life Sciences & Earth Sciences (AREA)
- Atmospheric Sciences (AREA)
- Thermal Sciences (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention particularly relates to an adjusting method and an adjusting system of an air conditioner electronic expansion valve, and an air conditioner. According to the adjusting method of the air conditioner electronic expansion valve provided by the invention, an adjusting process of the electronic expansion valve is divided into two stages of firstly, when the discharge temperature of a compressor achieves a first preset value, adopting a fixed first adjusting step number for adjusting; and then adopting a changeable second adjusting step number for continuously adjusting the electronic expansion valve during a second stage until the discharge temperature of the compressor is smaller than preset second discharge temperature, so that when the discharge temperature of the compressor is too high, not only can the opening degree of the electronic expansion valve be accurately and quickly adjusted, but also an air conditioner system can be ensured to operate continuously and stably.
Description
Technical field
The present invention relates to airconditioning control field, particularly to a kind of control method of air conditioner electronic expansion valve, system and sky
Adjust.
Background technology
When compressor exhaust temperature is too high, cold-producing medium not only can be made to decompose under contacting with materials such as metals with lubricating oil,
Generate carbon distribution and acids etc., oil body also can be made to reduce, lead to produce unnecessary abrasion in compressor, or even cause
The built-in motor of compressor burns, and excessive discharge temperature can affect the life-span of compressor it is therefore desirable to adjust electronic expansion in a word
Valve changing the coolant quantity of system, thus reducing the impact of excessive discharge temperature.The side at present electric expansion valve being adjusted
Method is all when delivery temperature exceedes certain fixed value, and electric expansion valve is directly reached some aperture, therefore electronic expansion
The regulation process of valve is not continuous, and air-conditioning system may be led to be unable to stable operation.
Content of the invention
The invention provides a kind of control method of air conditioner electronic expansion valve, system and air-conditioning, solve above-described
Technical problem.
The technical scheme that the present invention solves above-mentioned technical problem is as follows：
According to one aspect of the present invention, there is provided a kind of control method of air conditioner electronic expansion valve, comprise the following steps：
Step 1, obtains the delivery temperature of compressor, when the delivery temperature of compressor is more than or equal to default first exhaust
During temperature, using the default first regulation step number, electric expansion valve is adjusted；
Step 2, after reaching default regulating time point, the second regulation step number using change is carried out to electric expansion valve even
Continuous regulation, until the delivery temperature of compressor is less than default second exhaust temperature.
According to another aspect of the present invention, additionally provide a kind of regulating system of air conditioner electronic expansion valve, including first
Adjustment module and the second adjustment module,
Described first adjustment module is used for obtaining the delivery temperature of compressor, when the delivery temperature of compressor is more than or equal to
During default first exhaust temperature, using the default first regulation step number, electric expansion valve is adjusted；
After described second adjustment module is used for reaching default regulating time point, adjust step number to electricity using the second of change
Sub- expansion valve is continuously adjusted, until the delivery temperature of compressor is less than default second exhaust temperature.
In order to solve the technical problem of the present invention, additionally provide a kind of air-conditioning, expand including above-described air conditioner electronic
The regulating system of valve.
The invention has the beneficial effects as follows：The regulation process of electric expansion valve is divided into two stages by the present invention, first when
After compressor exhaust temperature reaches the first preset value, it is adjusted using the first fixing regulation step number, then in second stage,
The second regulation step number using change is continuously adjusted to electric expansion valve, thus in the excessive discharge temperature of compressor,
Precisely rapidly the aperture of electric expansion valve not only can be adjusted, and can ensure that the fortune of air-conditioning system continuous and stable
OK.
Brief description
Fig. 1 is the schematic flow sheet of the control method of air conditioner electronic expansion valve provided in an embodiment of the present invention；
Fig. 2 is the structural representation of the regulating system of air conditioner electronic expansion valve provided in an embodiment of the present invention；
Fig. 3 is the structural representation of air-conditioning provided in an embodiment of the present invention.
Specific embodiment
Below in conjunction with accompanying drawing, the principle of the present invention and feature are described, example is served only for explaining the present invention, and
Non- for limiting the scope of the present invention.
Fig. 1 gives a kind of schematic flow sheet of the control method of air conditioner electronic expansion valve provided in an embodiment of the present invention,
As shown in figure 1, comprising the following steps：
Step 1, obtains the delivery temperature of compressor, when the delivery temperature of compressor is more than or equal to default first exhaust
During temperature, using the default first regulation step number, electric expansion valve is adjusted；
Step 2, after reaching default regulating time point, the second regulation step number using change is carried out to electric expansion valve even
Continuous regulation, until the delivery temperature of compressor is less than default second exhaust temperature.
The control method of the air conditioner electronic expansion valve that above-described embodiment provides, the regulation process of electric expansion valve is divided into
In two stages, first after compressor exhaust temperature reaches the first preset value, it is adjusted using the first fixing regulation step number,
Then in second stage, the second regulation step number using change is continuously adjusted to electric expansion valve, thus in compressor
During excessive discharge temperature, precisely rapidly the aperture of electric expansion valve not only can be adjusted, and can ensure that air-conditioning system
The operation of system continuous and stable.
Alternatively, as one embodiment of the present of invention, described step 1 includes step in detail below：
S101, obtains the delivery temperature of compressor and the opening value of electric expansion valve；
S102, judges whether the delivery temperature of compressor is less than first exhaust temperature, if so, then keeps electric expansion valve
Opening value is constant；If it is not, then executing S103；
S103, adjusts step number and the opening value summation of described electric expansion valve, generates electric expansion valve to described first
Target opening value；
S104, the aperture controlling electric expansion valve is described target opening value.
Specifically, in this embodiment, the span of described first regulation step number is 10～15, such as 12.Work as compression
After machine delivery temperature reaches the first preset value, the current aperture of electric expansion valve is made to increase the first regulation step number, Ke Yixun immediately
The speed situation too high to compressor exhaust temperature responds, and prevents the delivery temperature of compressor from continuing to rise or slowing down compression
The elevation amplitude of machine delivery temperature, it is to avoid cause compressor built-in motor to burn.
It should be understood that in this embodiment it is possible to calculating second according to first exhaust temperature and default first computing formula
Delivery temperature, and different described first computing formula of different air conditioning operating mode correspondences.In a preferred embodiment, air-conditioning
Operational mode be refrigeration mode when, described first computing formula be tp2=(tp1-8) DEG C, now the span of tp1 be 85～
90℃；When air conditioning operating mode is for heating mode, described first computing formula is tp2=(tp1-6) DEG C, now the taking of tp1
Value scope is 90～95 DEG C, and wherein, tp2 is second exhaust temperature, and tp1 is first exhaust temperature.In this embodiment, freeze mould
Formula corresponding first exhaust temperature is less than heating mode corresponding first exhaust temperature, and refrigeration mode corresponding first row temperature
The difference of degree and second exhaust temperature is more than the difference of heating mode corresponding first exhaust temperature and second exhaust temperature, this
Mode is distinguished to refrigeration mode and heating mode, carries out corresponding to control to refrigeration mode and heating mode respectively, therefore
The regulative mode of electric expansion valve more accurate and effective.
Alternatively, as one embodiment of the present of invention, described step 2 includes step in detail below：
By inquiring about default first mapping table, obtain and adjust corresponding regulating time point every time, and reach institute
After stating regulating time point, execute Primary regulation process；Each regulation process all comprises the following steps：
S201, after reaching described regulating time point, obtains the current exhaust gas temperature of compressor and the current of electric expansion valve
Opening value, and judge that the current exhaust gas temperature of compressor, whether less than second exhaust temperature, if so, then terminates to electric expansion valve
Regulation process, if it is not, then execute S202；
S202, obtains this and adjusts corresponding second regulation step number；
S203, the current opening value to electric expansion valve and described second adjusts the target that step number summation generates this and adjusts
Opening value；
S204, judges whether the target opening value that this is adjusted is more than default opening value maximum or less than default
Opening value minimum of a value, if it is not, be then adjusted to the target opening value of this regulation, if so, then by electricity by the aperture of electric expansion valve
The aperture of sub- expansion valve is adjusted to described opening value maximum or described opening value minimum of a value.
Specifically, in this embodiment, the adjustable range of electronic expansion valve opening value is 96P～480P, by step 204
During can ensure that each regulation, electric expansion valve is all adjusted in adjustable range, prevents from damaging electric expansion valve.With
When, the first mapping table of this embodiment is provided with during continuously adjusting, the interval time adjusting every time, specially：Will
The process of continuously adjusting is divided into multiple regulation stages, and each regulation stage includes adjusting at least one times, when the regulation stage include many
During secondary regulation, adjacent regulation twice adopts identical interval time；And with adjusting increasing of number of times, adjust corresponding of stage
It is gradually increased every the time.For example in a preferred embodiment, using electric expansion valve regulating cycle table as shown in table 1 below.
In other embodiments, can also be using with adjusting increasing of number of times, the interval time between adjacent regulation twice gradually increases
Plus mode.
Table 1 electric expansion valve regulating cycle table
| Control number of times | 2nd time | 3rd time | The 4th | The 5th | 6th time and after |
| Interval time | 20s | 20s | 20s | 45s | 90s |
As shown in table 1, the process that continuously adjusts of this electric expansion valve includes three phases, and interval 20s carries out 3 tune first
Section, then the 3rd control interval 45s of the 4th adjustable range, the 5th and later regulation process all apart from previous regulation 90s,
Adopt in this way, can first carry out quickly repeatedly adjusting in short-term, reduce the delivery temperature of compressor as early as possible, when compressor
Delivery temperature declines to a certain extent or after declining certain time it is possible to reduce the regulating frequency of electric expansion valve, allows sky
Adjusting system runs more steady.
Preferably, as one embodiment of the present of invention, described S202 is specially：
Calculate target exhaust temperature, and generate this and adjust corresponding current exhaust gas temperature and described target exhaust temperature
First difference；
Calculate the second difference of this corresponding current exhaust gas temperature of regulation and the corresponding previous delivery temperature of previous regulation；
Inquire about default second mapping table, obtain described first difference and described second difference corresponding described second
Adjust step number.
In the preferred embodiment, target exhaust is calculated according to described first exhaust temperature and default second computing formula
Temperature, described second computing formula is tpo=tp1-1, and wherein tpo is target exhaust temperature, and tp1 is described first row temperature
Degree, adopts in this way, target exhaust temperature can be followed default first exhaust temperature and is changed, the tune of electric expansion valve
Section process is more precisely effective.
As shown in table 2 below, it is that first of current exhaust gas temperature and target exhaust temperature in one embodiment of the present invention is poor
The of value, the second difference of current exhaust gas temperature and the corresponding previous delivery temperature of previous regulation and described second regulation step number
Two mapping tables, by inquiring about the second mapping table, you can obtains and adjusts corresponding second regulation step number, this side every time
Formula can be according to the difference of the situation of change of compressor exhaust temperature and compressor current exhaust gas temperature and target exhaust temperature
The aperture of electric expansion valve is adjusted, the process that adjusts is more targeted, therefore more accurately effective.
Table 2 second mapping table
In table 2, the span of C is 12～18, and preferred value is 15, such that it is able to precisely rapid in the process of regulation
Simultaneously it is ensured that system continuous and stable runs.In specific implementation process, can be set respectively according to heating mode or refrigeration mode
Put the second mapping table, it would however also be possible to employ identical second mapping table.
Using a specific embodiment, said process is specifically described below.In this embodiment, operation of air conditioner mould
Formula is refrigeration mode, and first exhaust temperature is set to 88 DEG C, therefore can calculate second exhaust temperature and be 88-8=80 DEG C, target
Delivery temperature is 88-1=87 DEG C.The current operation frequency of air-conditioning is 44Hz, and frequency keeps constant, now compressor is worked as
Front exhaust temperature is acquired, and the current exhaust gas temperature obtaining compressor is 90 DEG C, higher than described first exhaust temperature, therefore needs
The aperture of electric expansion valve is adjusted, to adjust process as follows：
1st regulation：Now the opening value of electric expansion valve is 224P, adjusts step number 12 to electronics using default first
Expansion valve is adjusted, and the aperture of electric expansion valve will be adjusted to 224+12=236P, subsequently into continuously adjusting process, even
The time interval of continuous regulation process is as shown in table 1.
2nd regulation：As shown in table 1, carry out the 2nd regulation after 20s, collect the current exhaust of now compressor
Temperature is 92 DEG C, does not drop to 87 DEG C of target exhaust temperature it is therefore desirable to carry out the 2nd regulation.Can be calculated described
First difference=92-87=5 DEG C, described second difference=92-90=2 DEG C, the second mapping table shown in inquiry table 2, obtain
It is C-5 that the target adjusting to this adjusts step number, and the value of C is 15, and therefore this target adjusts step number is 10, needs electricity
The aperture regulation of sub- expansion valve to 236P+10P=246P, in the adjustable range of electric expansion valve.
Then according to the time interval of table 1 continues the aperture of electric expansion valve is adjusted, adjust process and the 2nd tune
The regulation process of section is identical, then this is not described in detail, until the delivery temperature of compressor be reduced to target exhaust temperature with
When lower, terminate the regulation process to electric expansion valve.
Above in association with Fig. 1, describe the control method of air conditioner electronic expansion valve according to embodiments of the present invention in detail, below
In conjunction with Fig. 2, describe the regulating system of air conditioner electronic expansion valve according to embodiments of the present invention in detail.
As shown in figure 3, being a kind of structural representation of the regulating system of air conditioner electronic expansion valve of the embodiment of the present invention, including
First adjustment module and the second adjustment module,
Described first adjustment module is used for obtaining the delivery temperature of compressor, when the delivery temperature of compressor is more than or equal to
During default first exhaust temperature, using the default first regulation step number, electric expansion valve is adjusted；
After described second adjustment module is used for reaching default regulating time point, adjust step number to electricity using the second of change
Sub- expansion valve is continuously adjusted, until the delivery temperature of compressor is less than default second exhaust temperature.
In a preferred embodiment, described first adjustment module includes：
First acquisition unit, for obtaining the delivery temperature of compressor and the opening value of electric expansion valve；
First judging unit, whether the delivery temperature for judging compressor is less than first exhaust temperature, if so, then keeps
The opening value of electric expansion valve is constant；If it is not, then driving described first computing unit；
First computing unit, for adjusting the opening value summation of step number and described electric expansion valve to described first, generates
The target opening value of electric expansion valve；；
First control unit, the aperture for controlling electric expansion valve is described target opening value.
Optionally, in a preferred embodiment of the invention, first adjust step number for 10～15.And according to described first
Delivery temperature and default first computing formula calculate second exhaust temperature, different described of different air conditioning operating mode correspondences
First computing formula：When air conditioning operating mode is for refrigeration mode, described first computing formula is tp2=(tp1-8) DEG C, now
The span of tp1 is 85～90 DEG C；When air conditioning operating mode is for heating mode, described first computing formula is tp2=
(tp1-6) DEG C, now the span of tp1 is 90～95 DEG C；Wherein, tp2 is second exhaust temperature, and tp1 is first row temperature
Degree.
In another preferred embodiment, described second adjustment module includes：
First query unit, for inquiring about default first mapping table, obtains and adjusts corresponding regulating time every time
Point；
Second acquisition unit, for reaching after described regulating time point, obtains current exhaust gas temperature and the electronics of compressor
The current opening value of expansion valve, and judge that the current exhaust gas temperature of compressor, whether less than second exhaust temperature, if so, then terminates
Regulation process to electric expansion valve, if it is not, then drive the 3rd acquiring unit；
3rd acquiring unit, adjusts corresponding second regulation step number for obtaining this；
Second computing unit, for generating this to the current opening value of electric expansion valve and described second regulation step number summation
The target opening value of secondary regulation；
Second judging unit, for judge target opening value that this adjusts whether more than default opening value maximum or
Person is less than default opening value minimum of a value, and drives the second control unit according to judged result；
Second control unit, for when the target opening value that this is adjusted is more than default opening value maximum or is less than
During default opening value minimum of a value, the aperture of electric expansion valve is adjusted to described opening value maximum or described opening value
Little value, otherwise, the aperture of electric expansion valve is adjusted to the target opening value of this regulation.
In the preferred embodiment, described 3rd acquiring unit specifically includes：
3rd computing unit, for calculating target exhaust temperature, and generate this adjust corresponding current exhaust gas temperature and
First difference of described target exhaust temperature；
4th computing unit, adjusts corresponding current exhaust gas temperature and the corresponding previous row of previous regulation for calculating this
Second difference of temperature degree；
Second query unit, for inquiring about default second mapping table, obtains described first difference and described second
The corresponding described second regulation step number of difference.
Optionally, in a preferred embodiment of the invention, according to described first exhaust temperature and default second meter
Calculate formula and calculate target exhaust temperature, described second computing formula is tpo=tp1-1, wherein tpo is target exhaust temperature, tp1
For described first exhaust temperature.In described first mapping table, with increasing of regulation number of times, between adjacent regulation twice
Interval time is gradually increased；Or in described first mapping table, the process that will continuously adjust is divided into multiple regulation stages, often
The individual regulation stage includes adjusting at least one times, and when the regulation stage including repeatedly adjusting, adjacent regulation twice adopts between identical
Every the time；And with adjusting the increasing of number of times, corresponding interval time in described regulation stage is gradually increased.
The present invention also provides a kind of air-conditioning, as shown in figure 3, being the structural representation of air-conditioning, including above-described air-conditioning
The regulating system of electric expansion valve.
The regulation process of electric expansion valve is divided into two stages by the present invention, first when compressor exhaust temperature reaches
After one preset value, it is adjusted using the first fixing regulation step number, then in second stage, using the second regulation step of change
Number is continuously adjusted to electric expansion valve, thus in the excessive discharge temperature of compressor, not only can be precisely rapidly to electricity
The aperture of sub- expansion valve is adjusted, and can ensure that the operation of air-conditioning system continuous and stable.
In describing the invention it is to be understood that term " first ", " second " are only used for describing purpose, and can not
It is interpreted as indicating or imply relative importance or the implicit quantity indicating indicated technical characteristic.Thus, define " the
One ", the feature of " second " can be expressed or implicitly include at least one this feature.In describing the invention, " multiple "
It is meant that at least two, such as two, three etc., unless otherwise expressly limited specifically.
In the description of this specification, reference term " embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or the spy describing with reference to this embodiment or example
Point is contained at least one embodiment or the example of the present invention.In this manual, to the schematic representation of above-mentioned term not
Identical embodiment or example must be directed to.And, the specific features of description, structure, material or feature can be in office
Combine in an appropriate manner in one or more embodiments or example.Additionally, in the case of not conflicting, the skill of this area
The feature of the different embodiments described in this specification or example and different embodiment or example can be tied by art personnel
Close and combine.
Although embodiments of the invention have been shown and described above it is to be understood that above-described embodiment is example
Property it is impossible to be interpreted as limitation of the present invention, those of ordinary skill in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, changes, replacing and modification, and these changes, modification, replacement and modification both fall within claimed invention
Protection domain in.
Claims (15)
1. a kind of control method of air conditioner electronic expansion valve is it is characterised in that comprise the following steps：
Step 1, obtains the delivery temperature of compressor, when the delivery temperature of compressor is more than or equal to default first exhaust temperature
When, using the default first regulation step number, electric expansion valve is adjusted；
Step 2, after reaching default regulating time point, the second regulation step number using change is continuously adjusted to electric expansion valve
Section, until the delivery temperature of compressor is less than default second exhaust temperature.
2. the control method of air conditioner electronic expansion valve according to claim 1 is it is characterised in that described step 1 is specially：
S101, obtains the delivery temperature of compressor and the opening value of electric expansion valve；
S102, judges whether the delivery temperature of compressor is less than first exhaust temperature, if so, then keeps the aperture of electric expansion valve
Value is constant；If it is not, then executing S103；
S103, adjusts step number and the opening value summation of described electric expansion valve, generates the target of electric expansion valve to described first
Opening value；
S104, the aperture controlling electric expansion valve is described target opening value.
3. the control method of air conditioner electronic expansion valve according to claim 2 is it is characterised in that described first adjusts step number
For 10～15.
4. the control method according to the arbitrary described air conditioner electronic expansion valve of claims 1 to 3 is it is characterised in that according to described
First exhaust temperature and default first computing formula calculate second exhaust temperature, and different air conditioning operating modes is corresponding different
Described first computing formula.
5. the control method of air conditioner electronic expansion valve according to claim 4 is it is characterised in that when air conditioning operating mode is
During refrigeration mode, described first computing formula is tp2=(tp1-8) DEG C, and now the span of tp1 is 85～90 DEG C；
When air conditioning operating mode is for heating mode, described first computing formula is tp2=(tp1-6) DEG C, the now value of tp1
Scope is 90～95 DEG C；
Wherein, tp2 is second exhaust temperature, and tp1 is first exhaust temperature.
6. the control method of air conditioner electronic expansion valve according to claim 5 is it is characterised in that in step 2, by inquiry
Default first mapping table, obtains and adjusts corresponding regulating time point every time, and after reaching described regulating time point, holds
Row Primary regulation process；Each regulation process all comprises the following steps：
S201, after reaching described regulating time point, obtains the current exhaust gas temperature of compressor and the current aperture of electric expansion valve
Value, and judge that the current exhaust gas temperature of compressor, whether less than second exhaust temperature, if so, then terminates the tune to electric expansion valve
Section process, if it is not, then execute S202；
S202, obtains this and adjusts corresponding second regulation step number；
S203, the current opening value to electric expansion valve and described second adjusts the target aperture that step number summation generates this and adjusts
Value；
S204, judges whether the target opening value that this is adjusted is more than default opening value maximum or is less than default aperture
Value minimum of a value, if it is not, then the aperture of electric expansion valve to be adjusted to the target opening value of this regulation, if so, then that electronics is swollen
The aperture of swollen valve is adjusted to described opening value maximum or described opening value minimum of a value.
7. the control method of air conditioner electronic expansion valve according to claim 6 is it is characterised in that described S202 is specially：
Calculate target exhaust temperature, and generate the first of this corresponding current exhaust gas temperature of regulation and described target exhaust temperature
Difference；
Calculate the second difference of this corresponding current exhaust gas temperature of regulation and the corresponding previous delivery temperature of previous regulation；
Inquire about default second mapping table, obtain described first difference and corresponding described second regulation of described second difference
Step number.
8. the control method of air conditioner electronic expansion valve according to claim 7 is it is characterised in that according to described first exhaust
Temperature and default second computing formula calculate target exhaust temperature, and described second computing formula is tpo=tp1-1, wherein tpo
For target exhaust temperature, tp1 is described first exhaust temperature.
9. the control method of air conditioner electronic expansion valve according to claim 6 is it is characterised in that in step 2, and described first
In mapping table, with adjusting increasing of number of times, the interval time between adjacent regulation twice is gradually increased；Or described
In one mapping table, the process that will continuously adjust is divided into multiple regulation stages, and each regulation stage includes adjusting at least one times,
When the regulation stage including repeatedly adjusting, adjacent regulation twice adopts identical interval time, and increasing with regulation number of times,
Corresponding interval time in described regulation stage is gradually increased.
10. a kind of regulating system of air conditioner electronic expansion valve is it is characterised in that include the first adjustment module and the second regulation mould
Block,
Described first adjustment module is used for obtaining the delivery temperature of compressor, presets when the delivery temperature of compressor is more than or equal to
First exhaust temperature when, using default first regulation step number electric expansion valve is adjusted；
After described second adjustment module is used for reaching default regulating time point, the second regulation step number using change is swollen to electronics
Swollen valve is continuously adjusted, until the delivery temperature of compressor is less than default second exhaust temperature.
The regulating system of 11. air conditioner electronic expansion valves according to claim 10 is it is characterised in that described first adjusts mould
Block includes：
First acquisition unit, for obtaining the delivery temperature of compressor and the opening value of electric expansion valve；
First judging unit, whether the delivery temperature for judging compressor is less than first exhaust temperature, if so, then keeps electronics
The opening value of expansion valve is constant；If it is not, then driving described first computing unit；
First computing unit, for adjusting the opening value summation of step number and described electric expansion valve to described first, generates electronics
The target opening value of expansion valve；；
First control unit, the aperture for controlling electric expansion valve is described target opening value.
The regulating system of 12. air conditioner electronic expansion valves according to claim 11 is it is characterised in that described second adjusts mould
Block includes：
First query unit, for inquiring about default first mapping table, obtains and adjusts corresponding regulating time point every time；
Second acquisition unit, for reaching after described regulating time point, obtains current exhaust gas temperature and the electronic expansion of compressor
The current opening value of valve, and judge that the current exhaust gas temperature of compressor, whether less than second exhaust temperature, if so, then terminates to electricity
The regulation process of sub- expansion valve, if it is not, then drive the 3rd acquiring unit；
3rd acquiring unit, adjusts corresponding second regulation step number for obtaining this；
Second computing unit, for generating this tune to the current opening value of electric expansion valve and described second regulation step number summation
The target opening value of section；
Whether the second judging unit, for judging target opening value that this adjusts more than default opening value maximum or little
In default opening value minimum of a value, and the second control unit is driven according to judged result；
Second control unit, for being more than default opening value maximum or less than default when the target opening value that this is adjusted
Opening value minimum of a value when, the aperture of electric expansion valve is adjusted to described opening value maximum or described opening value minimum
Value, otherwise, the aperture of electric expansion valve is adjusted to the target opening value of this regulation.
The regulating system of 13. air conditioner electronic expansion valves according to claim 12 is it is characterised in that the described 3rd obtains list
Unit specifically includes：
3rd computing unit, for calculating target exhaust temperature, and generates this and adjusts corresponding current exhaust gas temperature and described
First difference of target exhaust temperature；
4th computing unit, adjusts corresponding current exhaust gas temperature and the corresponding previous exhaust temperature of previous regulation for calculating this
Second difference of degree；
Second query unit, for inquiring about default second mapping table, obtains described first difference and described second difference
Corresponding described second regulation step number.
The regulating system of 14. air conditioner electronic expansion valves according to claim 12 is it is characterised in that described first corresponds to pass
It is in table, with adjusting increasing of number of times, the interval time between adjacent regulation twice is gradually increased；Or described first is corresponding
In relation table, the process that will continuously adjust is divided into multiple regulation stages, and each regulation stage includes adjusting at least one times, works as regulation
When stage includes repeatedly adjusting, adjacent regulation twice adopts identical interval time；And increasing with regulation number of times, described tune
Corresponding interval time in section stage is gradually increased.
A kind of 15. air-conditionings are it is characterised in that include the regulation system of the arbitrary described air conditioner electronic expansion valve of claim 10～14
System.
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