CN109520099A - A kind of initial opening control method, device and the air conditioner of electric expansion valve - Google Patents
A kind of initial opening control method, device and the air conditioner of electric expansion valve Download PDFInfo
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- CN109520099A CN109520099A CN201811427918.9A CN201811427918A CN109520099A CN 109520099 A CN109520099 A CN 109520099A CN 201811427918 A CN201811427918 A CN 201811427918A CN 109520099 A CN109520099 A CN 109520099A
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- initial opening
- correction value
- environment temperature
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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
- F24F11/89—Arrangement or mounting of control or safety devices
-
- 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
-
- 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
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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
- F25B41/00—Fluid-circulation arrangements
- F25B41/30—Expansion means; Dispositions thereof
- F25B41/31—Expansion valves
-
- 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
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
- F24F2110/12—Temperature of the outside air
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Thermal Sciences (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The present invention provides initial opening control method, device and the air conditioners of a kind of electric expansion valve, before compressor start, obtain outdoor environment temperature and indoor environment temperature, the total correction value of initial opening is calculated according to outdoor environment temperature, indoor environment temperature and preset initial opening a reference value, the initial opening of electric expansion valve is adjusted according to the total correction value of initial opening and initial opening a reference value.By the way that the initial opening of electric expansion valve and indoor environment temperature, outdoor environment temperature are carried out linkage control, when air conditioner has booting demand, before starting compressor, the initial opening of electric expansion valve is effectively corrected according to the total correction value of initial opening and initial opening a reference value, air conditioner under bad working environments is avoided to break down because the initial opening of electric expansion valve is unreasonable, the safety in operation and rapid adjustability of air conditioner are ensured, air conditioner is effectively shortened compared with prior art from booting to the stable time, and then realizes energy-efficient effect.
Description
Technical field
The present invention relates to air-conditioning technical field, in particular to a kind of electric expansion valve initial opening control method,
Device and air conditioner.
Background technique
Currently, the air-conditioner set using electronic expansion valve controls often uses the initial of fixation when freezing or heating and be switched on
Aperture, and the single following situations that is easy to appear of the initial opening of electric expansion valve: 1, it under bad working environments easily leads to short time in
The aperture of electric expansion valve is relatively small to keep system pressure excessively high, or even report high voltage fault；Or lead to the aperture of electric expansion valve
It is relatively bigger than normal, influence the service life of compressor, or even damage compressor；2, the long period is needed just to be adjustable after unit booting
Famous dictum degree of looking on the bright side of things can not make system quickly be in optimum state；3, the system stable time is longer after unit booting, increases complete machine
Energy consumption.
Summary of the invention
Problems solved by the invention is to cause air-conditioning system to run because the control of the initial opening of electric expansion valve is unreasonable
The low problem of reliability.
To solve the above problems, the present invention provides a kind of initial opening control method of electric expansion valve, it is applied to air-conditioning
Device, the air conditioner include electric expansion valve and compressor, which comprises
Before the compressor start, outdoor environment temperature and indoor environment temperature are obtained；
It is calculated according to the outdoor environment temperature, the indoor environment temperature and preset initial opening a reference value initial
The total correction value of aperture；
The initial of the electric expansion valve is adjusted according to the total correction value of the initial opening and the initial opening a reference value
Aperture.
In the initial opening control method of electric expansion valve provided by the invention, pass through initially opening electric expansion valve
Degree with indoor environment temperature, outdoor environment temperature carry out linkage control, when air conditioner has booting demand, starting compressor it
Before, according to the total correction value of calculated initial opening and preset initial opening a reference value to the initial opening of electric expansion valve into
Row effectively amendment, avoids air conditioner under bad working environments from breaking down because the initial opening of electric expansion valve is unreasonable, has ensured sky
The safety in operation and rapid adjustability for adjusting device effectively shorten air conditioner from booting to stable compared with prior art
Time, and then realize energy-efficient technical effect.
Further, described according to the outdoor environment temperature, the indoor environment temperature and preset initial opening
A reference value calculates the step of initial opening total correction value and includes:
The first correction value is calculated according to the outdoor environment temperature, the first preset temperature and the first default correction factor；
The second correction value is calculated according to the indoor environment temperature, the second preset temperature and the second default correction factor；
Calculate first correction value and second correction value and value, obtain the total correction value of the initial opening.
In the present invention, by calculating outdoor environment temperature and corresponding first correction value of indoor environment temperature and the
Two correction values, and then the total correction value of initial opening is obtained, therefore the first of electric expansion valve is adjusted according to the total correction value of the initial opening
When beginning aperture, degree of regulation can be improved, the initial opening error of the electric expansion valve avoided is excessive, and air conditioner is made to be switched on
Stable state is quickly reached afterwards.
Further, described to be calculated according to the outdoor environment temperature, the first preset temperature and the first default correction factor
The step of first correction value includes:
First correction value is calculated according to formula Δ T1=(Tao-To) μ 1, wherein Δ T1 is first correction value,
Tao is the outdoor environment temperature, and To is first preset temperature, and μ 1 is the described first default correction factor.
Further, described to be calculated according to the indoor environment temperature, the second preset temperature and the second default correction factor
The step of second correction value includes:
Second correction value is calculated according to formula Δ T2=(Tai-Ti) μ 2, wherein Δ T2 is second correction value,
Tai is the indoor environment temperature, and Ti is second preset temperature, and μ 2 is the described second default correction factor.
Further, the calculate first correction value and second correction value and value obtains described initially opening
The step of spending total correction value include:
The total correction value of initial opening is calculated according to formula Δ E=Δ T1+ Δ T2, wherein Δ E is the initial opening
Total correction value, Δ T1 are first correction value, and Δ T2 is second correction value.
Further, the air conditioner further includes outdoor environment temperature sensor and indoor environment temperature sensor, described
For outdoor environment temperature sensor for detecting the outdoor environment temperature, the indoor environment temperature sensor is described for detecting
Indoor environment temperature, it is described according to the outdoor environment temperature, the indoor environment temperature and preset initial opening benchmark
Value calculates the step of initial opening total correction value further include:
When detecting the outdoor environment temperature sensor failure, first correction value is determined as 0；Work as inspection
When measuring the indoor environment temperature sensor failure, then second correction value is determined as 0.
In the present invention, due to setting initial opening a reference value, therefore work as outdoor environment temperature sensor or indoor environment
When temperature sensor fault, remain to access the corresponding total correction value of initial opening, and then guarantee the normal operation of air conditioner.
Further, described that the electronics is adjusted according to the total correction value of the initial opening and the initial opening a reference value
The step of initial opening of expansion valve includes:
As the total correction value Δ E satisfaction-P/3 of the initial opening≤Δ E≤P, then by the initial of the electric expansion valve
Aperture PIt is realIt is adjusted to PIt is real=P+ Δ E, wherein P is the initial opening a reference value；
When the total correction value Δ E of the initial opening meets Δ E <-P/3, then by the initial opening of the electric expansion valve
PIt is realIt is adjusted to PIt is real=P+ (- P/3)；
When the total correction value Δ E of the initial opening meets Δ E > P, then by the initial opening P of the electric expansion valveIt is real
It is adjusted to PIt is real=P+P.
In the present invention, it by the judgement to the total correction value of the initial opening being calculated, realizes when initial opening is always repaired
When positive value meets different condition, the initial opening of electric expansion valve is adjusted in different ways, to realize to electronic expansion
Effective amendment of the initial opening of valve.
The present invention also provides a kind of initial opening control devices of electric expansion valve, are applied to air conditioner, the air conditioner
Including electric expansion valve and compressor, described device includes:
Temperature acquisition module, for obtaining outdoor environment temperature and indoor environment temperature before the compressor start；
Total correction value computing module, for according to the outdoor environment temperature, the indoor environment temperature and preset
Initial opening a reference value calculates the total correction value of initial opening；
Initial opening adjustment module, for being adjusted according to the total correction value of the initial opening and the initial opening a reference value
The initial opening of the electric expansion valve.
Further, total correction value computing module includes:
First correction value computing module, for being repaired according to the outdoor environment temperature, the first preset temperature and first are default
Positive coefficient calculates the first correction value；
Second correction value computing module, for being repaired according to the indoor environment temperature, the second preset temperature and second are default
Positive coefficient calculates the second correction value；
With value computing module, for calculate first correction value and second correction value and value, obtain it is described at the beginning of
The total correction value of beginning aperture.
Further, the initial opening adjustment module be used for when the total correction value Δ E satisfaction-P/3 of the initial opening≤
When Δ E≤P, then by the initial opening P of the electric expansion valveIt is realIt is adjusted to PIt is real=P+ Δ E, wherein P is the initial opening base
Quasi- value；When the total correction value Δ E of the initial opening meets Δ E <-P/3, then by the initial opening P of the electric expansion valveIt is real
It is adjusted to PIt is real=P+ (- P/3)；When the total correction value Δ E of the initial opening meets Δ E > P, then by the electric expansion valve
Initial opening PIt is realIt is adjusted to PIt is real=P+P.
The present invention also provides a kind of air conditioners, including controller and are stored with the memory of computer program, the calculating
When machine program is read and run by the controller, the initial opening control method of above-mentioned electric expansion valve is realized.
Detailed description of the invention
Fig. 1 is the composition schematic diagram of air conditioner provided by the present invention.
Fig. 2 is a kind of flow diagram of the initial opening control method of electric expansion valve provided by the present invention.
Fig. 3 is the sub-step schematic diagram of step S102 in Fig. 2.
Fig. 4 is the functional block diagram of the initial opening control device of electric expansion valve provided by the present invention.
Fig. 5 is the submodule schematic diagram of total correction value computing module in Fig. 4.
Description of symbols: 100- air conditioner；The initial opening control device of 200- electric expansion valve；110- controller；
120- memory；130- compressor；140- electric expansion valve；150- outdoor environment temperature sensor；160- indoor environment temperature
Sensor；210- temperature acquisition module；The total correction value computing module of 220-；230- initial opening adjustment module；221- first is repaired
Positive value computing module；222- the second correction value computing module；223- and value computing 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.
The initial opening control method and device of electric expansion valve provided by the embodiment of the present invention can be applied to shown in Fig. 1
Air conditioner 100 in.The air conditioner 100 includes controller 110, memory 120, compressor 130, electric expansion valve 140, outdoor
Environment temperature sensor 150 and indoor environment temperature sensor 160, memory 120, compressor 130, electric expansion valve 140, room
External environment temperature sensor 150 and indoor environment temperature sensor 160 are electrically connected with controller 110.
In the present embodiment, the outdoor environment temperature sensor 150 is for real-time detection outdoor environment temperature and by the room
External environment temperature feedback is to controller 110；The indoor environment temperature sensor 160 is used for real-time detection indoor environment temperature and will
The indoor environment temperature feeds back to controller 110；Controller 110 is when receiving air-conditioning power-on instruction, in control compressor 130
Before starting, first the outdoor environment temperature based on acquisition and indoor environment temperature carry out the initial opening of electric expansion valve 140
It quickly and efficiently corrects, so that can be rapidly achieved stable state after compressor 130 starts, ensure the safety of air-conditioning system
Property and rapid adjustability, run air conditioner 100 more reliable, more energy efficient.
Referring to figure 2., the process for the initial opening control method of electric expansion valve provided by the embodiment of the present invention is shown
It is intended to.It should be noted that the initial opening control method of electric expansion valve of the present invention is not with Fig. 2 and following institute
The specific order stated is limitation.It should be appreciated that in other embodiments, the initial opening control of electric expansion valve of the present invention
The sequence of method part step processed can be exchanged with each other according to actual needs or part steps therein also can be omitted
Or it deletes.The initial opening control method of the electric expansion valve can be applied to above-mentioned air conditioner 100, below will be to shown in Fig. 2
Detailed process be described in detail.
Step S101 obtains outdoor environment temperature and indoor environment temperature before the compressor 130 starting.
In the present embodiment, when air conditioner 100 have booting demand (including being switched on manually, timing start-up, to temperature shut down after
Booting etc.) when, controller 110 first obtains outdoor environment temperature sensor 150 and room before control compressor 130 starts respectively
The outdoor environment temperature and indoor environment temperature that interior environment temperature sensor 160 detects.
It is appreciated that when air conditioner 100 is without booting demand (including shut down, to temperature shutdown, timing shutdown etc.), controller
110 control the initial opening of electric expansion valve 140 by preset standby aperture.
Step S102, according to the outdoor environment temperature, the indoor environment temperature and preset initial opening benchmark
Value calculates the total correction value of initial opening.
As shown in figure 3, in the present embodiment, step S102 specifically includes following sub-step:
Sub-step S1021 calculates the according to the outdoor environment temperature, the first preset temperature and the first default correction factor
One correction value.
Wherein, sub-step S1021 is specifically included: calculating first amendment according to formula Δ T1=(Tao-To) μ 1
Value, wherein Δ T1 is first correction value, and Tao is the outdoor environment temperature, and To is first preset temperature, and μ 1 is
The first default correction factor.
It is appreciated that the first correction value Δ T1 is the corresponding correction value of outdoor environment temperature；First preset temperature To
For preset outdoor environment temperature a reference value, the range of first preset temperature To in cooling mode is 25 DEG C~45 DEG C, excellent
35 DEG C (i.e. summers routinely have refrigerating capacity demand outdoor temperature range) are selected as, first preset temperature To is in a heating mode
Range be -15 DEG C~15 DEG C, preferably 0 DEG C (i.e. winter routinely have heating capacity demand outdoor temperature range)；This first
Default correction factor μ 1 is the corresponding correction factor of outdoor environment temperature, and value range is 4~8, preferably 6, so that working as room
At 1 DEG C of the every variation of external environment temperature, corresponding first correction value Δ T1 in 4 steps between 8 steps, to avoid correcting too small or mistake
Greatly, lead to bigger error.
Sub-step S1022 calculates the according to the indoor environment temperature, the second preset temperature and the second default correction factor
Two correction values.
Wherein, sub-step S1022 is specifically included: calculating second amendment according to formula Δ T2=(Tai-Ti) μ 2
Value, wherein Δ T2 is second correction value, and Tai is the indoor environment temperature, and Ti is second preset temperature, and μ 2 is
The second default correction factor.
It is appreciated that the second correction value Δ T2 is the corresponding correction value of indoor environment temperature；Second preset temperature Ti
For preset indoor environment temperature a reference value, the range of second preset temperature Ti in cooling mode is 20 DEG C~35 DEG C, excellent
25 DEG C when indoor refrigeration (i.e. required general temperature range) are selected as, the range of second preset temperature Ti in a heating mode is
0 DEG C~20 DEG C, preferably 10 DEG C when indoor heating (i.e. required general temperature values)；The second default correction factor μ 2 is
The corresponding correction factor of indoor environment temperature, value range are 3~5, preferably 4, so that when the every variation 1 of indoor environment temperature
DEG C when, corresponding second correction value Δ T2 between 5 steps, to avoid correcting too small or excessive, leads to bigger error in 3 steps.
Sub-step S1023, calculate first correction value and second correction value and value, obtain the initial opening
Total correction value.
Wherein, sub-step S1023 is specifically included: being calculated the initial opening according to formula Δ E=Δ T1+ Δ T2 and is always repaired
Positive value, wherein Δ E is the total correction value of the initial opening, and Δ T1 is first correction value, and Δ T2 is second amendment
Value.
It should be noted that in the present embodiment, the value range of the total correction value Δ E of the initial opening is-P/3~P；It is logical
It crosses and magnitude range is limited to initial opening correction value Δ E, can be excessive to avoid amendment, to guarantee what air conditioner 100 was run
Safety.
Further, step S102 further includes following sub-step:
Sub-step S11 is corrected when detecting that the outdoor environment temperature sensor 150 breaks down by described first
Value is determined as 0.
Sub-step S12 is then repaired described second when detecting that the indoor environment temperature sensor 160 breaks down
Positive value is determined as 0.
In the present embodiment, which can pass the outdoor environment temperature sensor 150 and indoor environment temperature
Sensor 160 carries out fault detection, then at this time can not root again when detecting that failure has occurred in outdoor environment temperature sensor 150
The first correction value Δ T1 is calculated according to outdoor environment temperature Tao, the default correction factor μ 1 of the first preset temperature To and first, but
The value of first correction value Δ T1 is determined as 0；Similarly, when detecting that failure has occurred in indoor environment temperature sensor 160,
Then second can not be calculated further according to indoor environment temperature Tai, the default correction factor μ 2 of the second preset temperature Ti and second at this time
Correction value Δ T2, but the value of the second correction value Δ T2 is determined as 0；If the outdoor environment temperature sensor 150 and room
Interior environment temperature sensor 160 breaks down, then Δ T1=0, Δ T2=0, at this time the total correction value Δ E=Δ of the initial opening
T1+ Δ T2=0.
It is appreciated that sub-step S11 and sub-step S12 are executed before sub-step S1023, it and is in outdoor ring
Border temperature sensor 150 or indoor environment temperature sensor 160 can just execute in the case where breaking down.In other words, for
Sub-step S1021 and sub-step S11 executes sub-step S11, works as outdoor when outdoor environment temperature sensor 150 breaks down
When environment temperature sensor 150 does not break down, sub-step S1021 is executed；Similarly, for sub-step S1022 and sub-step
S12, when indoor environment temperature sensor 160 breaks down, execute sub-step S12, when indoor environment temperature sensor 160 not
When breaking down, sub-step S1022 is executed.
Step S103 adjusts the electronic expansion according to the total correction value of the initial opening and the initial opening a reference value
The initial opening of valve 140.
In the present embodiment, step S103 is specifically included: when the total correction value Δ E satisfaction-P/3≤Δ of the initial opening
When E≤P, then by the initial opening P of the electric expansion valve 140It is realIt is adjusted to PIt is real=P+ Δ E, wherein P is the initial opening
A reference value；When the total correction value Δ E of the initial opening meets Δ E <-P/3, then the initial of the electric expansion valve 140 being opened
Spend PIt is realIt is adjusted to PIt is real=P+ (- P/3)；When the total correction value Δ E of the initial opening meets Δ E > P, then by the electronic expansion
The initial opening P of valve 140It is realIt is adjusted to PIt is real=P+P.
In the present embodiment, the range of the preset initial opening a reference value P be 100 steps~200 steps, preferably 120 steps, with
Guarantee that controller 110 is in conventional operating condition in outdoor environment temperature sensor 150 or indoor environment temperature 160 failure of sensor
Electric expansion valve 140 is controlled by this aperture (i.e. initial opening a reference value P) down, air conditioner 100 can be made to operate normally.
It is appreciated that controller 110 is after calculating the total correction value Δ E of initial opening, by the total correction value of the initial opening
Δ E is compared with preset initial opening a reference value P, if-P/3≤Δ E≤P, PIt is real=P+ Δ E；If Δ E <-P/3, P
=P+ (- P/3) is equivalent to Δ E=-P/3 at this time；If Δ E > P, PIt is real=P+P is equivalent to Δ E=P at this time.
It referring to figure 4., is the function of the initial opening control device 200 of electric expansion valve provided by the embodiment of the present invention
Module diagram.It should be noted that the initial opening control device 200 of electric expansion valve described in the embodiment of the present invention,
Basic principle and the technical effect of generation are identical as preceding method embodiment, to briefly describe, do not refer to part in the present embodiment,
It can refer to the corresponding contents of preceding method embodiment.The initial opening control device 200 of the electric expansion valve can be applied to
The air conditioner 100 stated comprising temperature acquisition module 210, total correction value computing module 220 and initial opening adjustment module 230.
It is appreciated that above-mentioned temperature acquisition module 210, total correction value computing module 220 and initial opening adjustment module
230 can be the software function module and computer program being stored in memory 120, and can be executed by controller 110.
The temperature acquisition module 210 is used for before the compressor 130 starting, obtains outdoor environment temperature and indoor environment
Temperature.
It is appreciated that the temperature acquisition module 210 can execute above-mentioned steps S101.
Total correction value computing module 220 is used for according to the outdoor environment temperature, the indoor environment temperature and pre-
If initial opening a reference value calculate the total correction value of initial opening.
It is appreciated that total correction value computing module 220 can execute above-mentioned steps S102.
As shown in figure 5, total correction value computing module 220 includes the first correction value computing module 221, the second correction value meter
Calculate module 222 and and value computing module 223.
The first correction value computing module 221 is used for pre- according to the outdoor environment temperature, the first preset temperature and first
If correction factor calculates the first correction value.
Wherein, which is specifically used for being calculated according to formula Δ T1=(Tao-To) μ 1 described
First correction value, wherein Δ T1 is first correction value, and Tao is the outdoor environment temperature, and To is the described first default temperature
Degree, μ 1 are the described first default correction factor.
It is appreciated that the first correction value computing module 221 can execute above-mentioned steps S1021.
The second correction value computing module 222 is used for pre- according to the indoor environment temperature, the second preset temperature and second
If correction factor calculates the second correction value.
Wherein, which is specifically used for being calculated according to formula Δ T2=(Tai-Ti) μ 2 described
Second correction value, wherein Δ T2 is second correction value, and Tai is the indoor environment temperature, and Ti is the described second default temperature
Degree, μ 2 are the described second default correction factor.
It is appreciated that the second correction value computing module 222 can execute above-mentioned steps S1022.
This and value computing module 223 are used to calculate first correction value and second correction value and value, obtains institute
State the total correction value of initial opening.
Wherein, should and be worth computing module 223 to be specifically used for calculating the initial opening according to formula Δ E=Δ T1+ Δ T2
Total correction value, wherein Δ E is the total correction value of the initial opening, and Δ T1 is first correction value, and Δ T2 repairs for described second
Positive value.
It is appreciated that this and value computing module 223 can execute above-mentioned steps S1023.
In the present embodiment, which is also used to detect the outdoor ring when controller 110
When border temperature sensor 150 breaks down, first correction value is determined as 0.
It is appreciated that above-mentioned steps S11 can also be performed in the first correction value computing module 221.
The second correction value computing module 222 is also used to detect the indoor environment temperature sensor when controller 110
160 when breaking down, then second correction value is determined as 0.
It is appreciated that above-mentioned steps S12 can also be performed in the second correction value computing module 222.
The initial opening adjustment module 230 is used for according to the total correction value of the initial opening and the initial opening a reference value
Adjust the initial opening of the electric expansion valve 140.
In the present embodiment, which is specifically used for when the total correction value Δ E of the initial opening is full
When foot-P/3≤Δ E≤P, then by the initial opening P of the electric expansion valve 140It is realIt is adjusted to PIt is real=P+ Δ E, wherein P is institute
State initial opening a reference value；When the total correction value Δ E of the initial opening meets Δ E <-P/3, then by the electric expansion valve
140 initial opening PIt is realIt is adjusted to PIt is real=P+ (- P/3)；When the total correction value Δ E of the initial opening meets Δ E > P, then will
The initial opening P of the electric expansion valve 140It is realIt is adjusted to PIt is real=P+P.
It is appreciated that the initial opening adjustment module 230 can execute above-mentioned steps S103.
In conclusion initial opening control method, device and the air conditioner of electric expansion valve provided by the invention, described
Before compressor start, outdoor environment temperature and indoor environment temperature are obtained, according to the outdoor environment temperature, the indoor environment
Temperature and preset initial opening a reference value calculate the total correction value of initial opening, according to the total correction value of the initial opening and institute
State the initial opening that initial opening a reference value adjusts the electric expansion valve.By by the initial opening of electric expansion valve and indoor
Environment temperature, outdoor environment temperature carry out linkage control, when air conditioner has booting demand, before starting compressor, according to
The calculated total correction value of initial opening and preset initial opening a reference value carry out the initial opening of electric expansion valve effective
Amendment, avoids air conditioner under bad working environments from breaking down because the initial opening of electric expansion valve is unreasonable, has ensured air conditioner
Safety in operation and rapid adjustability, effectively shorten air conditioner from booting to the stable time compared with prior art,
And then realize energy-efficient technical 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 (11)
1. a kind of initial opening control method of electric expansion valve, is applied to air conditioner (100), the air conditioner (100) includes
Electric expansion valve (140) and compressor (130), which is characterized in that the described method includes:
Before the compressor (130) starting, outdoor environment temperature and indoor environment temperature are obtained；
Initial opening is calculated according to the outdoor environment temperature, the indoor environment temperature and preset initial opening a reference value
Total correction value；
The initial of the electric expansion valve (140) is adjusted according to the total correction value of the initial opening and the initial opening a reference value
Aperture.
2. the initial opening control method of electric expansion valve according to claim 1, which is characterized in that described according to
Outdoor environment temperature, the indoor environment temperature and preset initial opening a reference value calculate the step of the total correction value of initial opening
Suddenly include:
The first correction value is calculated according to the outdoor environment temperature, the first preset temperature and the first default correction factor；According to institute
It states indoor environment temperature, the second preset temperature and the second default correction factor and calculates the second correction value；Calculate first amendment
It is worth with second correction value and value, obtains the total correction value of the initial opening.
3. the initial opening control method of electric expansion valve according to claim 2, which is characterized in that described according to
The step of outdoor environment temperature, the first preset temperature and the first default correction factor calculate the first correction value include:
First correction value is calculated according to formula Δ T1=(Tao-To) μ 1, wherein Δ T1 is first correction value, Tao
For the outdoor environment temperature, To is first preset temperature, and μ 1 is the described first default correction factor.
4. the initial opening control method of electric expansion valve according to claim 2, which is characterized in that described according to
The step of indoor environment temperature, the second preset temperature and the second default correction factor calculate the second correction value include:
Second correction value is calculated according to formula Δ T2=(Tai-Ti) μ 2, wherein Δ T2 is second correction value, Tai
For the indoor environment temperature, Ti is second preset temperature, and μ 2 is the described second default correction factor.
5. the initial opening control method of electric expansion valve according to claim 2, which is characterized in that described in the calculating
First correction value and second correction value and value, the step of obtaining the initial opening total correction value include:
The total correction value of initial opening is calculated according to formula Δ E=Δ T1+ Δ T2, wherein Δ E is that the initial opening is always repaired
Positive value, Δ T1 are first correction value, and Δ T2 is second correction value.
6. the initial opening control method of electric expansion valve according to claim 2, which is characterized in that the air conditioner
It (100) further include outdoor environment temperature sensor (150) and indoor environment temperature sensor (160), the outdoor environment temperature
Sensor (150) is for detecting the outdoor environment temperature, and the indoor environment temperature sensor (160) is for detecting the room
Interior environment temperature, it is described according to the outdoor environment temperature, the indoor environment temperature and preset initial opening a reference value
The step of calculating initial opening total correction value further include:
When detecting that the outdoor environment temperature sensor (150) is broken down, first correction value is determined as 0；When
When detecting that the indoor environment temperature sensor (160) is broken down, then second correction value is determined as 0.
7. the initial opening control method of electric expansion valve according to claim 1, which is characterized in that described according to
The step of total correction value of initial opening and the initial opening a reference value adjust the initial opening of the electric expansion valve (140) is wrapped
It includes:
As the total correction value Δ E satisfaction-P/3 of the initial opening≤Δ E≤P, then by the initial of the electric expansion valve (140)
Aperture PIt is realIt is adjusted to PIt is real=P+ Δ E, wherein P is the initial opening a reference value；
When the total correction value Δ E of the initial opening meets Δ E <-P/3, then the initial of the electric expansion valve (140) being opened
Spend PIt is realIt is adjusted to PIt is real=P+ (- P/3)；
When the total correction value Δ E of the initial opening meets Δ E > P, then by the initial opening P of the electric expansion valve (140)It is real
It is adjusted to PIt is real=P+P.
8. a kind of initial opening control device of electric expansion valve, is applied to air conditioner (100), the air conditioner (100) includes
Electric expansion valve (140) and compressor (130), which is characterized in that described device includes:
Temperature acquisition module (210), for obtaining outdoor environment temperature and indoor environment before the compressor (130) starting
Temperature；
Total correction value computing module (220), for according to the outdoor environment temperature, the indoor environment temperature and preset
Initial opening a reference value calculates the total correction value of initial opening；
Initial opening adjustment module (230), for according to the total correction value of the initial opening and the initial opening a reference value tune
Save the initial opening of the electric expansion valve (140).
9. the initial opening control device of electric expansion valve according to claim 8, which is characterized in that total correction value
Computing module (220) includes:
First correction value computing module (221), for being repaired according to the outdoor environment temperature, the first preset temperature and first are default
Positive coefficient calculates the first correction value；
Second correction value computing module (222), for being repaired according to the indoor environment temperature, the second preset temperature and second are default
Positive coefficient calculates the second correction value；
With value computing module (223), for calculate first correction value and second correction value and value, obtain it is described at the beginning of
The total correction value of beginning aperture.
10. the initial opening control device of electric expansion valve according to claim 8, which is characterized in that described initially to open
Adjustment module (230) are spent to be used for as the total correction value Δ E satisfaction-P/3 of the initial opening≤Δ E≤P, then it is the electronics is swollen
The initial opening P of swollen valve (140)It is realIt is adjusted to PIt is real=P+ Δ E, wherein P is the initial opening a reference value；It is initially opened when described
When spending total correction value Δ E and meeting Δ E <-P/3, then by the initial opening P of the electric expansion valve (140)It is realIt is adjusted to PIt is real=P+
(-P/3)；When the total correction value Δ E of the initial opening meets Δ E > P, then the initial of the electric expansion valve (140) being opened
Spend PIt is realIt is adjusted to PIt is real=P+P.
11. a kind of air conditioner, which is characterized in that including controller (110) and it is stored with the memory (120) of computer program,
When the computer program is read and run by the controller (110), such as the described in any item sides of claim 1-7 are realized
Method.
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| CN115371328B (en) * | 2021-05-18 | 2023-12-01 | 合肥美的电冰箱有限公司 | Refrigeration equipment and steady-state control method and device thereof |
| CN113465101A (en) * | 2021-05-31 | 2021-10-01 | 宁波奥克斯电气股份有限公司 | Air conditioner starting control method and device and air conditioner |
| CN113465101B (en) * | 2021-05-31 | 2022-09-27 | 宁波奥克斯电气股份有限公司 | Air conditioner starting control method and device and air conditioner |
| WO2023280286A1 (en) * | 2021-07-09 | 2023-01-12 | 青岛海尔空调电子有限公司 | Method for controlling electronic expansion valve during defrosting process of heat pump system, and storage medium |
| CN113819638A (en) * | 2021-09-22 | 2021-12-21 | 青岛海尔空调器有限总公司 | Air conditioner control method and control device under high-environment-temperature condition |
| CN115200195A (en) * | 2022-08-26 | 2022-10-18 | 宁波奥克斯电气股份有限公司 | Initial opening correction method and device and air conditioner |
| CN115200195B (en) * | 2022-08-26 | 2023-07-18 | 宁波奥克斯电气股份有限公司 | Initial opening correction method and device and air conditioner |
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