CN110186163A

CN110186163A - A kind of control method and air conditioner of air conditioner

Info

Publication number: CN110186163A
Application number: CN201910470345.6A
Authority: CN
Inventors: 古汤汤
Original assignee: Aux Air Conditioning Co Ltd; Ningbo Aux Electric Co Ltd
Current assignee: Aux Air Conditioning Co Ltd; Ningbo Aux Electric Co Ltd
Priority date: 2019-05-31
Filing date: 2019-05-31
Publication date: 2019-08-30

Abstract

The present invention provides a kind of control method of air conditioner and air conditioner, the control method includes: that air conditioner runs the first preset time under single cylinder operation mode；The air conditioner obtains the operating parameter of air conditioner, the operating parameter includes outer ring temperature or condensation temperature or pressure at expulsion and pressure of inspiration(Pi) to when operational mode is heating mode or refrigeration mode；Judge whether the operating parameter meets the first preset condition；If meeting first preset condition, the air conditioner is switched to twin-tub operation mode.Outer ring temperature or condensation temperature or pressure at expulsion are combined with pressure of inspiration(Pi) in the application and judged, can reduce its uncertainty, increases the accuracy of judgement, so that the switching of air conditioner operation mode is more accurate.

Description

A kind of control method and air conditioner of air conditioner

Technical field

The present invention relates to air-conditioning technical fields, in particular to the control method and air conditioner of a kind of air conditioner.

Background technique

With the increasingly raising of people's living standard, requirement of the people to quality of life is also higher and higher, wherein refrigeration and Heating equipment, universal such as air conditioner are the important rings for improving life comfort level.

Currently, refrigeration and heating equipment are in the related technology, refrigeration or heating are mainly realized by compressor.And it is Reach better using effect, the noise control of refrigeration and heating equipment, refrigeration effect, heating effect is required to reach higher It is horizontal.In order to reach the purpose, needs according to the actual situation, transfiguration control is carried out to compressor.

It is relatively simple to the control method of transfiguration in existing situation, such as determined pair only by detection indoor environment Compressor carries out the time of transfiguration, and the accuracy that this simple control method allows for control is insufficient.

Summary of the invention

Problems solved by the invention is how more accurately to be controlled air conditioner.

To solve the above problems, present invention firstly provides a kind of control methods of air conditioner comprising:

Air conditioner runs the first preset time under single cylinder operation mode；

The air conditioner obtains the operating parameter of air conditioner, institute to when operational mode is heating mode or refrigeration mode Stating operating parameter includes outer ring temperature or condensation temperature or pressure at expulsion and pressure of inspiration(Pi)；

Judge whether the operating parameter meets the first preset condition；

If meeting first preset condition, the air conditioner is switched to twin-tub operation mode.

Outer ring temperature or condensation temperature or pressure at expulsion are combined with pressure of inspiration(Pi) in the application and judged, It can reduce its uncertainty, increase the accuracy of judgement, so that the switching of air conditioner operation mode is more accurate.

Optionally, when meeting any one in following condition, it is default to determine that the operating parameter meets described first Condition:

Condition one: under refrigeration mode, the pressure of inspiration(Pi) is less than or equal to first pressure threshold value and the outer ring temperature is greater than Equal to the first circumstance temperature threshold value；

Condition two: under refrigeration mode, the pressure of inspiration(Pi) is less than or equal to first pressure threshold value and the condensation temperature is greater than Warm threshold value solidifying equal to described first；

Condition three: under heating mode, the pressure of inspiration(Pi) is less than or equal to first pressure threshold value and the outer ring temperature is less than Equal to the third circumstance temperature threshold value；

Condition four: under heating mode, the pressure of inspiration(Pi) is less than or equal to first pressure threshold value and the condensation temperature is greater than Warm threshold value solidifying equal to the third；

Condition five: the ratio of the pressure at expulsion and the pressure of inspiration(Pi) is more than or equal to first row suction and compares threshold value.

Judge in this way, so that it is more accurate to the judgement of the practical operation situation of air conditioner, consequently facilitating being obtained by judgement Take the opportunity of more accurate operation mode switching.

Optionally, described the air conditioner is switched to twin-tub operation mode to specifically include:

The operation mode of the air conditioner is switched to twin-tub operation mode；

The second preset time is run under twin-tub operation mode.

In this way, can not only to reach stable operating status inside air conditioner, but also can measure inside air conditioner in time Accurate operating parameter, to be adjusted in time to the operation of air conditioner.

Optionally, further includes:

If not meeting first preset condition, judge whether the operating parameter meets the second preset condition, described Two preset conditions and first preset condition are without intersection；

If meeting second preset condition, the air conditioner is switched to single cylinder increasing enthalpy operation mode；

Judge whether the operating parameter meets third preset condition, the third preset condition and the described first default item Part, second preset condition are without intersection；

If meeting the third preset condition, the air conditioner is switched to single cylinder operation mode and returns to the judgement Whether the operating parameter meets the second preset condition step.

In this way, by the second preset condition of setting and third preset condition, by air conditioner in single cylinder operation mode and single cylinder It is switched between increasing enthalpy operation mode, to not only can satisfy the demand of air conditioner, but also the energy consumption of air conditioner can be reduced, mentioned The Energy Efficiency Ratio of high air conditioner；The decaying generated inside air conditioner can also be reduced simultaneously, avoid compressor with high operation Frequency operation, plays Noise Reduction.

Optionally, when meeting any one in following condition, it is default to determine that the operating parameter meets described second Condition:

Condition one: the pressure of inspiration(Pi) is greater than first pressure threshold value and is less than second pressure threshold value；

Condition two: the ratio of the pressure at expulsion and the pressure of inspiration(Pi) is greater than second row and inhales than threshold value and be less than described the One row, which inhales, compares threshold value.

In the case, the air conditioner is switched to single cylinder increasing enthalpy operation mode, by increasing enthalpy, air conditioner can be reduced The decaying that inside generates, to reduce influence of the air conditioner internal environment to the compression effectiveness of compressor from another point of view, in turn Increase the refrigerating capacity or heating capacity of air conditioner；It also avoids compressor to run with high running frequency, plays noise reduction Effect.

Optionally, when meeting any one in following condition, it is default to determine that the operating parameter meets the third Condition:

Condition one: the pressure of inspiration(Pi) is greater than third pressure threshold；The third pressure threshold is greater than the second pressure Threshold value；

Condition two: the ratio of the pressure at expulsion and the pressure of inspiration(Pi) is less than third row and inhales than threshold value, the third row It inhales and compares threshold value less than second row suction than threshold value.

In the case, the air conditioner is switched to single cylinder operation mode, not only can satisfy the demand of air conditioner, but also can To reduce the energy consumption of air conditioner, the Energy Efficiency Ratio of air conditioner is improved.

Optionally, it is described the air conditioner is switched to single cylinder increasing enthalpy operation mode after, comprising:

Rejudge whether the operating parameter meets the first preset condition；

It under single cylinder increasing enthalpy mode, also determines whether to be switched to twin-tub mode, so as to reach between three modes Smooth switching, avoid switching not prompt enough.

Optionally, it is described the air conditioner is switched to twin-tub operation mode after, comprising:

Judge whether the operating parameter meets the 4th preset condition；

If meeting the 4th preset condition, the air conditioner is switched to twin-tub increasing enthalpy operation mode；

Judge whether the operating parameter meets the 5th preset condition, the 5th preset condition with described 4th default article Part is without intersection；

If meeting the 5th preset condition, returns and described the air conditioner is switched to twin-tub operation mode step.

In this way, by the 4th preset condition of setting and the 5th preset condition, by air conditioner in twin-tub operation mode and twin-tub It is switched between increasing enthalpy operation mode, to not only can satisfy the demand of air conditioner, but also the energy consumption of air conditioner can be reduced, mentioned The Energy Efficiency Ratio of high air conditioner；The decaying generated inside air conditioner can also be reduced simultaneously, avoid compressor with high operation Frequency operation, plays Noise Reduction.

Optionally, when meeting any one in following condition, it is default to determine that the operating parameter meets the described 4th Condition:

Condition one: the pressure of inspiration(Pi) is less than the 4th pressure threshold；

Condition two: the ratio of the pressure at expulsion and the pressure of inspiration(Pi) is more than or equal to the 4th row suction and compares threshold value.

In the case, the air conditioner is switched to twin-tub increasing enthalpy operation mode, by increasing enthalpy, air conditioner can be reduced The decaying that inside generates, to reduce influence of the air conditioner internal environment to the compression effectiveness of compressor from another point of view, in turn Increase the refrigerating capacity or heating capacity of air conditioner.

Optionally, when meeting any one in following condition, it is default to determine that the operating parameter meets the described 5th Condition:

Condition one: the pressure of inspiration(Pi) is greater than the 5th pressure threshold and less than the 6th pressure threshold, the 5th pressure threshold Value is greater than the 4th pressure threshold；

Condition two: the ratio of the pressure at expulsion and the pressure of inspiration(Pi) is greater than the 5th row and inhales than threshold value and be less than described the Six rows, which inhale, compares threshold value；6th row, which inhales to inhale than threshold value less than the 4th row, compares threshold value.

In the case, the air conditioner is switched to twin-tub operation mode, not only can satisfy the demand of air conditioner, but also can To reduce the energy consumption of air conditioner, the Energy Efficiency Ratio of air conditioner is improved.

Judge whether the operating parameter meets the 6th preset condition；

If meeting the 6th preset condition, returns and described the air conditioner is switched to single cylinder operation mode step.

In this way, the air conditioner is switched to single cylinder operation mode, both can satisfy sky by the judgement to operating parameter The demand of device is adjusted, and the energy consumption of air conditioner can be reduced, improves the Energy Efficiency Ratio of air conditioner.

Optionally, it is described the air conditioner is switched to twin-tub increasing enthalpy operation mode after, comprising:

Judge whether the operating parameter meets the 6th preset condition；

It under twin-tub increasing enthalpy mode, also determines whether to be switched to single cylinder mode, so as to reach between three modes Smooth switching, avoid switching not prompt enough.

Optionally, when meeting any one in following condition, it is default to determine that the operating parameter meets the described 6th Condition:

Condition one: under refrigeration mode, the outer ring temperature is less than the second circumstance temperature threshold value；

Condition two: under refrigeration mode, the condensation temperature is less than the described second solidifying warm threshold value；

Condition three: under heating mode, the outer ring temperature is greater than the 4th circumstance temperature threshold value；

Condition four: under heating mode, the condensation temperature is less than the described 4th solidifying warm threshold value；

Condition five: the ratio of the pressure at expulsion and the pressure of inspiration(Pi) is inhaled less than the 7th row than threshold value, the 7th row It inhales to inhale than threshold value less than the 5th row and compares threshold value.

Optionally, the operating parameter further includes the running frequency of compressor.Its uncertainty can be further decreased, is increased Add the accuracy of judgement, so that the switching of air conditioner operation mode is more accurate.

Next provides a kind of computer readable storage medium, is stored with instruction, and described instruction is loaded and executed by processor The control method of air conditioner Shi Shixian as described above.

In this way, air conditioner can be controlled in single cylinder operation mode, twin-tub operation mode, single cylinder increasing enthalpy according to operating parameter Operation mode switches between twin-tub increasing enthalpy operation mode.

A kind of air conditioner, including controller, duplex cylinder compressor and increasing enthalpy component be finally provided, the duplex cylinder compressor to The switching of single cylinder and twin-tub, the increasing enthalpy component is to realize increasing enthalpy, which is characterized in that the controller is for controlling the sky The control method for the air conditioner for adjusting device to realize as described in aforementioned.

Detailed description of the invention

Fig. 1 is the flow chart of the control method of the air condition of that present invention；

Fig. 2 is the flow chart that the control method single cylinder increasing enthalpy of the air condition of that present invention switches；

Fig. 3 is the flow chart that the control method twin-tub increasing enthalpy of the air condition of that present invention switches；

Fig. 4 is the control method of the air condition of that present invention based on the flow chart of outer ring temperature under refrigeration mode；

Fig. 5 is the control method of the air condition of that present invention based on the flow chart of condensation temperature under refrigeration mode；

Fig. 6 is the control method of the air condition of that present invention based on the flow chart of outer ring temperature under heating mode；

Fig. 7 is the control method of the air condition of that present invention based on the flow chart of condensation temperature under heating mode；

Fig. 8 is the control method of the air condition of that present invention based on the flow chart of pressure at expulsion；

Fig. 9 is the flow chart that the control method list twin-tub increasing enthalpy of the air condition of that present invention switches；

Figure 10 is that the control method twin-tub of the air condition of that present invention switches the flow chart of single cylinder；

Figure 11 is the structural block diagram of the air condition of that present invention.

Specific embodiment

In the application, the representative equipment of air conditioner is air conditioner, for the ease of being illustrated, in following the description In, it is described in detail by control process of the air conditioner to air conditioner；It, can be air conditioner and air conditioner in described below It is considered as equivalent；Those skilled in the art are when understanding the application, it is not possible to merely due to literal difference, and by air-conditioning Device and air conditioner are considered two mutually different restrictions.

In the application, the operational mode of usual air-conditioning includes: refrigeration mode, heating mode, ventilation mode, dehumidification mode etc. Mode.Single cylinder operation mode, twin-tub operation mode, single cylinder increasing enthalpy operation mode, twin-tub increasing enthalpy operation mode are the operation of air-conditioning Mode.

It is explained for the ease of the operation mode to air-conditioning, we are with earlier patent application: a kind of air-conditioning tonifying Qi Increasing enthalpy method, system and air-conditioning (application number: are explained based on 201510416281.3).Wherein, air-conditioning passes through benefit The mode of gas achievees the effect that increasing enthalpy, on this basis, in order to increase the ability to work of compressor, can set compressor to There are two the compressors of compression cylinder (being also possible to multiple) for tool, in this way, being single cylinder in the case where single compression cylinder is only used only Operation mode is twin-tub operation mode using two compression cylinders or multiple compression cylinders, in fact, can also be with On the basis of single cylinder operation mode and twin-tub operation mode, increase multiple operation modes, to correspond to using multiple compression cylinders Situation.

Single compression cylinder is only used only in single cylinder operation mode therein as a result, as compressor, and does not carry out to air conditioner Increasing enthalpy；Twin-tub operation mode, as compressor use two or more compression cylinders, but do not carry out increasing enthalpy to air conditioner；Single cylinder increases Single compression cylinder is only used only in enthalpy operation mode, as compressor, but carries out increasing enthalpy to air conditioner；Twin-tub increasing enthalpy operates mould Formula, as compressor use two or more compression cylinders, and carry out increasing enthalpy to air conditioner.

In order to realize the more accurate control to compressor, it is necessary to first be carried out to the variation of the working condition of compressor clear The understanding of Chu.In normal working condition, compressor can adjust the running frequency of itself according to the actual demand of air conditioner (being the actual motion frequency that external controller controls compressor by control signal during actual adjustment), if air-conditioning The refrigerating capacity or heating capacity that device needs are higher, and compressor can improve the running frequency of itself, to meet the needs of air conditioner；If The refrigerating capacity or heating capacity that air conditioner needs are lower, and compressor can reduce itself in the case where meeting the needs of air conditioner Running frequency.

On this basis, we are further illustrated the transfiguration of compressor.In order to make it easy to understand, we are by way of example The mode of son is illustrated situation.It is emphasized that.Specific number in the example shown, merely to show size relation, The not exact value of actual working state.It is exemplified below:

Under the normal operation of air conditioner, compressor is run with a certain running frequency, can achieve 3500 watts of system Cooling capacity.At this point, user has adjusted the target temperature of room temperature there may be a kind of situation, to reach the target temperature, need The running frequency of compressor is wanted to be adjusted, to reach 7000 watts of refrigerating capacity；In the case, in order to reach the system of air conditioner Cold requirement needs to carry out transfiguration to compressor.

It is of course also possible to there is another situation, if outdoor environment produces lasting high temperature, so that the refrigeration of air conditioner Effect produces decaying, that is to say, compressor is run with the running frequency, is unable to reach 3500 watts of refrigerating capacity.Herein In the case of, in order to reach the refrigeration requirement of air conditioner, need to carry out transfiguration increasing enthalpy to compressor.

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.

According to Fig. 4, Fig. 5, Fig. 6, Fig. 7, Fig. 8, it is illustrated in conjunction with remaining attached drawing.

As shown in Figure 1, its flow chart for the control method of the air condition of that present invention；Wherein, the controlling party of the air conditioner Method, comprising:

Step 100, air conditioner runs the first preset time under single cylinder operation mode；

Air conditioner after actuation, internal various operating parameters, such as evaporator temperature, suction temperature, pressure at expulsion, It is in extremely low level, and these parameters are in constantly variation due to refrigerating/heating demand, it can not be truly Reaction reaches corresponding refrigerating/heating demand, so needing first to run a period of time in single cylinder operation mode, so that in air conditioner After the operation in portion reaches stable state, then the operating parameter inside air conditioner is acquired, it so just can be to avoid air-conditioning The measurement inaccuracy as caused by the irregular change of parameter leads to the problem of precise control deficiency after device starting.

Optionally, first preset time is 5-10min；In this way, can both to reach stable inside air conditioner Operating status, and the accurate operating parameter inside air conditioner can be measured in time, to be carried out in time to the operation of air conditioner Adjustment.

Step 200, the air conditioner obtains the operation of air conditioner to when operational mode is heating mode or refrigeration mode Parameter, the operating parameter include outer ring temperature or condensation temperature or pressure at expulsion and pressure of inspiration(Pi)；

The operational mode of air-conditioning is divided into four kinds, is refrigeration mode, heating mode, ventilation mode, dehumidification mode.Wherein, Under dehumidification mode, the running frequency of compressor in air conditioner is required very low, compressor only needs single cylinder operation that can meet and want It asks；Under ventilation mode, starting compressor is not needed.In this way, just being needed only under the refrigeration mode of air-conditioning or heating mode The switching of single twin-tub or increasing enthalpy is carried out according to the operating parameter of air conditioner.

In this way, by determine air-conditioning operational mode, can in order to air conditioner transfiguration and increasing enthalpy control.

Wherein, the pressure of inspiration(Pi) is the pressure of compressor air suction mouth；The condensation temperature is condenser in air conditioner Temperature；The pressure at expulsion is the pressure of exhaust outlet of compressor；The outer ring temperature is the outdoor environment of the air conditioner Temperature.In order to make it easy to understand, condenser is to play the dress that high-temperature gas or steam are condensed into liquid in air conditioner in the application It sets, carries out heat release, in air conditioner refrigeration, evaporator is located in air-conditioner outdoor unit, and in air conditioner heat-production, evaporator is located at sky It adjusts in indoor unit；Wherein, it for the ease of measurement, can as be condensed using the coil temperature of condenser as the temperature of condenser Temperature.

The condensation temperature is the temperature of condenser, it should be noted that in the application, condenser is defined as to refrigeration Agent is condensed to discharge the equipment of heat, therefore in cooling mode, and condenser is located inside air-conditioner outdoor unit；In heating mould Under formula, condenser is located inside air conditioner indoor unit.

In this step, the operating parameter includes outer ring temperature or condensation temperature or pressure at expulsion and pressure of inspiration(Pi) Power；Refer to the operating parameter include outer ring temperature and pressure of inspiration(Pi) or including condensation temperature and pressure of inspiration(Pi) or including row Atmospheric pressure and pressure of inspiration(Pi).

Step 300, judge whether the operating parameter meets the first preset condition；

Whether the operating parameter meets the first preset condition, refers to that outer ring temperature and pressure of inspiration(Pi) meet the first default item Part or condensation temperature and pressure of inspiration(Pi) meet the first preset condition or pressure at expulsion and pressure of inspiration(Pi) meets the first default item Part；Its essence is meant that pressure of inspiration(Pi) meets the first preset condition, while in outer ring temperature, condensation temperature, in delivery temperature Any one also meets the first preset condition.

When not meeting the first preset condition, show that the load of air conditioner is lower, if meeting first preset condition, table The load of bright air conditioner is higher.

Step 400, if meeting first preset condition, the air conditioner is switched to twin-tub operation mode.

If meeting first preset condition, show that the load of air conditioner is higher；If taking single cylinder operation mode at this time, It may then be difficult meet the needs of air conditioner, or compressor is needed just to can satisfy air conditioner with high running frequency operation Demand (compressor is run with high running frequency, very big damage can be not only brought to compressor, but also can be generated greatly Noise, influence the normal use of air conditioner).

In the case, the air conditioner is switched to twin-tub operation mode, compressor can be made with suitable operation Frequency just can satisfy the demand of air conditioner when running, play the role of reducing noise and extend compressor service life, thus The experience effect of user can be increased.

Wherein, air conditioner in the process of running, can be general to produce with the variation of external environment or the variation of user's control Raw two kinds of problems: one, need higher refrigerating capacity or heating capacity demand, two, air conditioner attenuated inside.Obtain outer ring temperature or The purpose of person's condensation temperature or pressure at expulsion, exactly be used to speculate in the air conditioner, produce above-mentioned any problem or Person whether simultaneously produce two kinds of problems (the case where due to air conditioner in actual operation, is increasingly complex, be also possible to generate with The third or the 4th kind of problem except upper two kinds of problems, therefore, outer ring temperature or condensation temperature or pressure at expulsion pair The conclusion for obtaining a Relative Fuzzy in the supposition of air conditioner), the characteristic that different problems are shown be it is different, only Speculated by outer ring temperature or condensation temperature or pressure at expulsion, uncertainty is very high, therefore in the application It is combined with pressure of inspiration(Pi) and is judged, can reduce its uncertainty, increases the accuracy of judgement, so that empty Adjust the switching of device operation mode more accurate.

When meeting any one in following condition, determine that the operating parameter meets first preset condition:

Above-mentioned five conditions respectively correspond three embodiments, that is to say that the operating parameter includes outer ring temperature and pressure of inspiration(Pi) Power or including condensation temperature and pressure of inspiration(Pi) or including three kinds of situations of pressure at expulsion and pressure of inspiration(Pi)；Wherein, one He of condition It is embodiment that the operating parameter includes outer ring temperature and pressure of inspiration(Pi) that condition three is corresponding, only the fortune of corresponding air conditioner Row mode is different；Condition two and condition four it is corresponding be embodiment that the operating parameter includes condensation temperature and pressure of inspiration(Pi), Only the operational mode of corresponding air conditioner is different；It is the operating parameter includes pressure at expulsion and air-breathing that condition five is corresponding The embodiment of pressure.

In the state of air conditioner stable operation, at the outer ring temperature, refrigeration mode under pressure at expulsion, refrigeration mode (refrigerating/heating of air conditioner needs the running frequency of compressor in condensation temperature and air conditioner under condensation temperature, heating mode Ask) it is positively correlated；In outer ring temperature under pressure of inspiration(Pi), heating mode and air conditioner the running frequency of compressor (air conditioner Refrigerating/heating demand) it is negatively correlated；That is, the refrigerating/heating of air conditioner needs in the state of air conditioner stable operation Ask bigger, under the outer ring temperature under corresponding pressure at expulsion, refrigeration mode, the condensation temperature under refrigeration mode, heating mode Condensation temperature is bigger, and the outer ring temperature under corresponding pressure of inspiration(Pi), heating mode is smaller；The refrigerating/heating demand of air conditioner is got over It is small, the outer ring temperature under corresponding pressure at expulsion, refrigeration mode, the condensation temperature under refrigeration mode, the condensation under heating mode Temperature is smaller, and the outer ring temperature under corresponding pressure of inspiration(Pi), heating mode is bigger.

When being described to the first preset condition the case where, we in a chiller mode under outer ring temperature for (need Illustrate, corresponding three embodiments of five conditions have relatively high similarity, in the embodiment for knowing delivery temperature In the case of, those skilled in the art also are understood that other two embodiments) it is illustrated.The pressure of inspiration(Pi) is less than or equal to the One pressure threshold, it is meant that the running environment (internal operating environment of the air conditioner) of the compressor is poor, cause compared with Big decaying；The outer ring temperature is more than or equal to the first circumstance temperature threshold value, it is meant that the external environment of air conditioner is very poor, refrigeration Demand increases, and the compressor is also unable to satisfy the refrigeration or heating needs of air conditioner with the operation of higher frequency；It that is to say When saying the first preset condition of satisfaction, show that the load of air conditioner is very high.

The value range of the first pressure threshold value is 0.7~0.9MPa.Wherein, in entire air conditioner, pressure of inspiration(Pi) Range be 0.1~1.5MPa, the running environment in the pressure limit is not extreme, not will lead to the instant failure of compressor CPU in (being out of order in the very short time) and air conditioner, the failure of controller, if but keeping lower pressure of inspiration(Pi) for a long time Running environment, the compressor in air conditioner, CPU can be seriously affected, the normal operation of controller etc. shortens making for electronic device Use the service life.Using 0.7~0.9MPa as first pressure threshold value, the switching of operation mode is carried out to air conditioner based on this, can be kept away The pressure of inspiration(Pi) for exempting from compressor keeps the running environment of lower pressure for a long time, and then can make the other component of air conditioner just Often operation, prevents the running environment bring service life from shortening.

The value range of the first circumstance temperature threshold value is 35~45 DEG C.Wherein, in the refrigerating operaton environment of entire air conditioner In, the general allowed band of outer ring temperature is 20~60 DEG C.If but keeping higher temperature for a long time, it is meant that outside air conditioner Portion's environment is very poor, and refrigeration demand is very big, can to generate deep fades inside air conditioner, the internal operating environment of air conditioner is very Difference, to seriously affect the CPU in air conditioner, the normal operation of controller etc. shortens the service life of electronic device.By 35~ 45 DEG C are used as the first temperature threshold, carry out the switching of operation mode to air conditioner based on this, can be to avoid the outer circumstance temperature of compressor Degree keeps the internal operating environment of air conditioner caused by higher temperature to be deteriorated for a long time, and then can make other portions of air conditioner Part operates normally, and prevents internal operating environment variation bring service life from shortening.

The value range of described first solidifying warm threshold value is 38~50 DEG C.In refrigeration, condensation temperature is outside air conditioning chamber The temperature of condenser in machine, since condenser is to outdoor exothermic principle, in this case, condensation temperature is greater than outer ring temperature； Wherein, in the refrigerating operaton environment of entire air conditioner, the general allowed band of condensation temperature is 20~65 DEG C.If but when long Between keep higher temperature, the CPU in air conditioner can be seriously affected, the normal operation of controller etc. shortens the use of electronic device Service life.By 38~50 DEG C as the first solidifying warm threshold value, the switching of operation mode is carried out to air conditioner based on this, it can be to avoid compression The condensation temperature of machine keeps higher temperature for a long time, and then the other component of air conditioner can be made to operate normally, and prevents high temperature Bring service life shortens.

The value range of the third circumstance temperature threshold value is -10~0 DEG C.Wherein, in the heating operation environment of entire air conditioner In, the general allowed band of outer ring temperature is -30~20 DEG C.If but keeping lower temperature for a long time, it is meant that air conditioner External environment is very poor, and heating needs are very big, can to generate deep fades inside air conditioner, the internal operating environment of air conditioner is very Difference, to seriously affect the CPU in air conditioner, the normal operation of controller etc. shortens the service life of electronic device.By -10 ~0 DEG C is used as third temperature threshold, carries out the switching of operation mode to air conditioner based on this, can be to avoid the outer circumstance temperature of compressor Degree keeps the internal operating environment of air conditioner caused by lower temperature to be deteriorated for a long time, and then can make other portions of air conditioner Part operates normally, and prevents internal operating environment variation bring service life from shortening.

The value range of the solidifying warm threshold value of the third is 25~35 DEG C.In heating, condensation temperature is in air conditioning chamber The temperature of condenser in machine, since condenser is to indoor exothermic principle, in this case, condensation temperature is greater than indoor environment temperature Degree；Wherein, in the heating operation environment of entire air conditioner, the general allowed band of condensation temperature is 20~65 DEG C.If but Higher temperature is kept for a long time, can seriously affect the CPU in air conditioner, and the normal operation of controller etc. shortens electronic device Service life.By 25~35 DEG C as the solidifying warm threshold values of thirds, the switching of operation mode is carried out to air conditioner based on this, it can be to avoid The condensation temperature of compressor keeps higher temperature for a long time, and then the other component of air conditioner can be made to operate normally, and prevents High temperature bring service life shortens.

The first row suction is 9~11 than the value range of threshold value.Wherein, in entire air conditioner, pressure at expulsion and suction The allowed band of the ratio of atmospheric pressure is 1~20.The ratio of pressure at expulsion and pressure of inspiration(Pi) is excessively high, it is meant that entire air conditioner In operating condition, operating pressure is larger, and each operation part-load of air conditioner is higher, if keeping such operating condition for a long time, not only The service life of associated components can be shortened, and there may be other serious consequences such as components damage, failure.By 9~11 conducts The first row is inhaled than threshold value, is carried out the switching of operation mode to air conditioner based on this, can be kept for a long time to avoid air conditioner Biggish operating pressure, reduces the load of each operation component, thus not only prevent from shortening the service life of associated components, but also It can prevent other consequences such as resulting components damage, failure.

Optionally, the step 400 specifically includes:

Step 410, the operation mode of the air conditioner is switched to twin-tub operation mode；

Step 420, the second preset time is run under twin-tub operation mode.

Air conditioner is after switching operation modes, internal various operating parameters, such as evaporator temperature, suction temperature, row Atmospheric pressure etc., these parameters due to refrigerating/heating ability variation and in constantly variation in, can not truly react and reach To corresponding refrigerating/heating ability, so needing first to run one section at single cylinder increasing enthalpy operation mode (operation mode after switching) Time, so that after the operation inside air conditioner reaches stable state, then the operating parameter inside air conditioner is acquired, this Sample just can cause to control to avoid the measurement inaccuracy as caused by the irregular change of parameter after air conditioner switching operation modes The problem of accuracy deficiency.

Optionally, second preset time is 5-15min；In this way, can both to reach stable inside air conditioner Operating status, and the accurate operating parameter inside air conditioner can be measured in time, to be carried out in time to the operation of air conditioner Adjustment.

Optionally, as shown in connection with fig. 2, the control method of the air conditioner further include:

Step 500, if not meeting first preset condition, judge whether the operating parameter meets the second default item Part, second preset condition and first preset condition are without intersection；

Whether meet the first preset condition, is the judgment basis of single cylinder mode and twin-tub pattern switching；It is being switched to After single cylinder mode, we also need to further determine whether to need increasing enthalpy, that is to say and single cylinder operation mode is maintained still to be switched to Single cylinder increasing enthalpy operation mode.

It is that the air conditioner is switched to the laggard of single cylinder operation mode for whether meeting the judgement of the second preset condition Capable.Meet the second preset condition, show that the load of air conditioner is very high (or external environment is very poor), single cylinder is only taken to operate mould Formula needs compressor just to can satisfy the demand of air conditioner with high running frequency；In addition it also shows and is produced inside air conditioner Decaying has been given birth to, further reduced the refrigerating capacity or heating capacity of air conditioner.

In addition, second preset condition and first preset condition be without intersection, i other words, the first preset condition and the Range representated by two preset conditions, if meeting the first preset condition, is centainly unsatisfactory for the second preset condition, instead without intersection It is centainly unsatisfactory for the first preset condition if meeting the second preset condition.In this way, can make to whether increasing enthalpy is sentenced It is disconnected, without departing from determination range before, to prevent the problem of logic error etc. influences air conditioner normal control.

Wherein, described herein there is no intersection, refer to the case where being not in while meeting two preset conditions appearance, Illustrate by taking this step as an example, as parameter would not meet the second preset condition when meeting the first preset condition；Meeting the When two preset conditions, the first preset condition would not be met；Second parameter will not meet the first preset condition and second in advance simultaneously If condition.

Similarly, the described of other parts appearance does not have intersection in the application, also illustrates that identical meaning.

Step 600, if meeting second preset condition, the air conditioner is switched to single cylinder increasing enthalpy operation mode；

In the case where meeting second preset condition, the air conditioner is switched to single cylinder increasing enthalpy operation mode, is led to Increasing enthalpy is crossed, the decaying generated inside air conditioner can be reduced, to reduce air conditioner internal environment from another point of view to compressor Compression effectiveness influence, and then increase air conditioner refrigerating capacity or heating capacity；Compressor is also avoided with high fortune Line frequency operation, plays Noise Reduction.

Step 700, judge whether the operating parameter meets third preset condition, the third preset condition and described the One preset condition, second preset condition are without intersection；

It herein, is that the air conditioner is switched to single cylinder increasing enthalpy behaviour for whether meeting the judgement of third preset condition It is carried out after operation mode.Meet third preset condition, show the load reduction of air conditioner, only takes single cylinder operation mode, Compressor can meet the needs of air conditioner with lower running frequency；In addition the decaying inside air conditioner is also shown also to drop Low or disappear, the refrigerating capacity or heating capacity of air conditioner have been higher than normal demand.

In addition, the third preset condition and first preset condition, second preset condition are without intersection It says, range representated by third preset condition and the first preset condition, the second preset condition is without intersection, if it is default to meet third Condition is then centainly unsatisfactory for the first preset condition and is unsatisfactory for the second preset condition, whereas if meet the second preset condition or Person meets the first preset condition, then is centainly unsatisfactory for third preset condition.In this way, can make to whether the judgement of increasing enthalpy, no Determination range before exceeding, to prevent the problem of logic error etc. influences air conditioner normal control.

The third preset condition and second preset condition can make single cylinder operation mode be switched to list without intersection The Rule of judgment that cylinder increasing enthalpy operation mode and single cylinder increasing enthalpy operation mode are switched to single cylinder operation mode has certain point From to avoid the occurrence of the case where air conditioner frequently back and forth switches between single cylinder operation mode and single cylinder increasing enthalpy operation mode.

Step 800, if meeting the third preset condition, the air conditioner is switched to single cylinder operation mode and returning The step 500.

In this way, by the way that the air conditioner is switched to single cylinder operation mode, the demand of air conditioner not only can satisfy, but also can be with The energy consumption for reducing air conditioner, improves the Energy Efficiency Ratio of air conditioner.

Meet that preset range is similar, and above-mentioned two condition respectively corresponds three embodiments to above-mentioned determination, that is to say described Operating parameter includes outer ring temperature and pressure of inspiration(Pi) or including condensation temperature and pressure of inspiration(Pi) or including pressure at expulsion and suction Three kinds of situations of atmospheric pressure；Wherein, condition one it is corresponding be the operating parameter include outer ring temperature and pressure of inspiration(Pi) or including The embodiment of condensation temperature and pressure of inspiration(Pi)；It is the operating parameter includes pressure at expulsion and pressure of inspiration(Pi) that condition two is corresponding Embodiment.

When being described to the second preset condition the case where, we in a chiller mode under outer ring temperature for (need Illustrate, corresponding three embodiments of two conditions have relatively high similarity, in the embodiment for knowing delivery temperature In the case of, those skilled in the art also are understood that other two embodiments) it is illustrated.The pressure of inspiration(Pi) is less than or equal to the Two pressure thresholds, it is meant that the running environment (internal operating environment of the air conditioner) of the compressor is poor, cause compared with Big decaying；The compressor is also unable to satisfy the refrigeration or heating needs of air conditioner with the operation of higher frequency；It that is to say When saying the second preset condition of satisfaction, show that the load of air conditioner is very high.

The value range of the second pressure threshold value is 1.1~1.3MPa.Wherein, in entire air conditioner, pressure of inspiration(Pi) Range be 0.1~1.5MPa, the running environment in the pressure limit is not extreme, not will lead to the instant failure of compressor CPU in (being out of order in the very short time) and air conditioner, the failure of controller, if but keep the running environment for a long time, The compressor in air conditioner, CPU can be seriously affected, the normal operation of controller etc. shortens the service life of electronic device.It will 1.1~1.3MPa carries out the switching of operation mode based on this as second pressure threshold value to air conditioner, can be to avoid compressor Pressure of inspiration(Pi) keeps the running environment of lower pressure for a long time, and then the other component of air conditioner can be made to operate normally, and prevents Only the running environment bring service life shortens.

The second row suction is 4~6 than the value range of threshold value.Wherein, in entire air conditioner, pressure at expulsion and air-breathing The allowed band of the ratio of pressure is 1~20.The ratio of pressure at expulsion and pressure of inspiration(Pi) is excessively high, it is meant that the work of entire air conditioner In condition, operating pressure is larger, and each operation part-load of air conditioner is higher, if keeping such operating condition for a long time, not only can Shorten the service life of associated components, and there may be other serious consequences such as components damage, failure.It will be described in 4~6 conducts Second row is inhaled than threshold value, is carried out the switching of operation mode to air conditioner based on this, can be kept for a long time larger to avoid air conditioner Operating pressure, reduce the load of each operation component, to not only prevent from shortening the service life of associated components, but also can be with Prevent other consequences such as resulting components damage, failure.

When being described to third preset condition the case where, we in a chiller mode under outer ring temperature for (need Illustrate, corresponding three embodiments of two conditions have relatively high similarity, in the embodiment for knowing delivery temperature In the case of, those skilled in the art also are understood that other two embodiments) it is illustrated.The pressure of inspiration(Pi) is greater than third pressure Force threshold, it is meant that show the load reduction of air conditioner, only take single cylinder operation mode, compressor is with lower running frequency Can meet the needs of air conditioner；In addition the decaying inside air conditioner is also shown to also reduce or disappear, air conditioner Refrigerating capacity or heating capacity have been higher than normal demand.

In addition, the third pressure threshold is greater than the second pressure threshold value, the third row inhales than threshold value less than second Row inhales than threshold value, can make that single cylinder operation mode is switched to single cylinder increasing enthalpy operation mode and single cylinder increasing enthalpy operation mode is cut The Rule of judgment for changing to single cylinder operation mode has certain separation, to avoid the occurrence of air conditioner in single cylinder operation mode and list The case where frequently back and forth switching between cylinder increasing enthalpy operation mode.

Optionally, the value range of the third pressure threshold is 1.2~1.4MPa.Wherein, it in entire air conditioner, inhales The range of atmospheric pressure is 0.1~1.5MPa, and pressure of inspiration(Pi) is excessively high, it is meant that in the operating condition of entire air conditioner, operating pressure very little, Each operation part-load of air conditioner is very low, and compressor can meet the refrigeration or heating of air conditioner with very low running frequency Demand, but under this kind of operating condition, the energy consumption of air conditioner is too high, and Energy Efficiency Ratio is too low.Operation mode is carried out to air conditioner based on this Switching, can keep for a long time larger heating/refrigerating capacity to avoid air conditioner and compressor is for a long time with lower running frequency fortune Row (this meeting is so that air conditioning energy consumption is too high), to not only can satisfy the demand of air conditioner, but also can reduce the energy consumption of air conditioner, mention The Energy Efficiency Ratio of high air conditioner.

The third row suction is 3~5 than the value range of threshold value.Wherein, in entire air conditioner, pressure at expulsion and air-breathing The allowed band of the ratio of pressure is 1~20.The ratio of pressure at expulsion and pressure of inspiration(Pi) is too low, it is meant that the work of entire air conditioner In condition, each operation part-load of operating pressure very little, air conditioner is very low, and compressor can be met with very low running frequency The refrigeration or heating needs of air conditioner, but under this kind of operating condition, the energy consumption of air conditioner is too high, and Energy Efficiency Ratio is too low.Based on this to sky Device is adjusted to carry out the switching of operation mode, when can keep for a long time larger heating/refrigerating capacity and compression captain to avoid air conditioner Between (this meeting is so that air conditioning energy consumption is too high) is run with lower running frequency, to not only can satisfy the demand of air conditioner, but also can be with The energy consumption for reducing air conditioner, improves the Energy Efficiency Ratio of air conditioner.

Optionally, as shown in connection with fig. 9, the step 600, after the air conditioner is switched to single cylinder increasing enthalpy operation mode, Include:

Step 1300, rejudge whether the operating parameter meets the first preset condition；

If meeting first preset condition, the air conditioner is switched to twin-tub operation mode (return step 400).

In this way, it is identical as the step 300, it is that the first preset condition of satisfaction no to the operating parameter judges, By being rejudged to this, so that the air conditioner be cut by single cylinder increasing enthalpy operation mode by the judgement to operating parameter It is changed to twin-tub operation mode, compressor can be made just can satisfy the demand of air conditioner when suitable running frequency operation, Play the role of reducing noise and extend compressor service life, so as to increase the experience effect of user；In addition, passing through fortune Row parameter carries out the switching between single cylinder increasing enthalpy and twin-tub, may be implemented the large change of refrigerating capacity or heating capacity, so that Switch more acurrate.

In addition, also determining whether to be switched to twin-tub mode under single cylinder increasing enthalpy mode, so as to reach three modes Between smooth switching, avoid switching and not prompt enough (be switched to twin-tub operation mould again if be switched to after single cylinder operation mode Formula will lead to the delay on switching time due to also needing to reacquire data judgement etc. under single cylinder operation mode) caused by The consume of compressor and other parts inside air conditioner etc. and the energy consumption of air conditioner are excessive etc..

Optionally, the air conditioner is switched to single cylinder increasing enthalpy operation mode and specifically included by the step 600:

Step 610, the operation mode of the air conditioner is switched to single cylinder increasing enthalpy operation mode；

Step 620, the second preset time is run under single cylinder increasing enthalpy operation mode.

Optionally, the air conditioner is switched to single cylinder operation mode and specifically included by the step 800:

Step 810, the operation mode of the air conditioner is switched to single cylinder operation mode；

Step 820, the second preset time is run under single cylinder operation mode.

Optionally, as shown in connection with fig. 3, the step 400, after the air conditioner is switched to twin-tub operation mode, comprising:

Step 900, judge whether the operating parameter meets the 4th preset condition；

It herein, is that the air conditioner is switched to twin-tub operation mould for whether meeting the judgement of the 4th preset condition It is carried out after formula.Meet the 4th preset condition, shows that the load of air conditioner is very high, only take twin-tub operation mode, need to press Contracting machine just can satisfy the demand of air conditioner with high running frequency；In addition also show inside air conditioner that there may be decline Subtract, further reduced the refrigerating capacity or heating capacity of air conditioner.

Step 1000, if meeting the 4th preset condition, the air conditioner is switched to twin-tub increasing enthalpy operation mode；

In the case where meeting four preset condition, the air conditioner is switched to twin-tub increasing enthalpy operation mode, is led to Increasing enthalpy is crossed, the decaying generated inside air conditioner can be reduced, to reduce air conditioner internal environment from another point of view to compressor Compression effectiveness influence, and then increase air conditioner refrigerating capacity or heating capacity；Compressor is also avoided with high fortune Line frequency operation, plays Noise Reduction.

Step 1100, judge whether the operating parameter meets the 5th preset condition, the 5th preset condition with it is described 4th preset condition is without intersection；

If meeting the 5th preset condition, return step 400.

5th preset condition and the 4th preset condition without intersection, i other words, the 5th preset condition and the 4th pre- If range representated by condition without intersection, if meeting the 5th preset condition, is centainly unsatisfactory for the 4th preset condition, conversely, If meeting the 4th preset condition, it is centainly unsatisfactory for the 5th preset condition.

It herein, is that the air conditioner is switched to twin-tub increasing enthalpy behaviour for whether meeting the judgement of the 5th preset condition It is carried out after operation mode.Meet the 5th preset condition, show the load reduction of air conditioner, only takes twin-tub operation mode, Compressor can meet the needs of air conditioner with lower running frequency；In addition the decaying inside air conditioner is also shown also to drop Low or disappear, the refrigerating capacity or heating capacity of air conditioner have been higher than normal demand.

In this way, by the way that the air conditioner is switched to twin-tub operation mode, the demand of air conditioner not only can satisfy, but also can be with The energy consumption for reducing air conditioner, improves the Energy Efficiency Ratio of air conditioner.

In conclusion passing through the switching of single cylinder and twin-tub, the variation of refrigerating capacity or heating capacity may be implemented；Pass through increasing Enthalpy can reduce the attenuation of air conditioner；In this way, passing through the switching of single cylinder and twin-tub, or by increasing enthalpy, can to press Contracting machine reaches the refrigeration requirement of air conditioner in the case where not changing running frequency.

When being described to four preset conditions the case where, we in a chiller mode under outer ring temperature for (need Illustrate, corresponding three embodiments of two conditions have relatively high similarity, in the embodiment for knowing delivery temperature In the case of, those skilled in the art also are understood that other two embodiments) it is illustrated.The pressure of inspiration(Pi) is less than or equal to the Four pressure thresholds, it is meant that the running environment (internal operating environment of the air conditioner) of the compressor is poor, cause compared with Big decaying；The compressor is also unable to satisfy the refrigeration or heating needs of air conditioner with the operation of higher frequency；It that is to say When saying four preset condition of satisfaction, show that the load of air conditioner is very high.

In the case, the air conditioner is switched to twin-tub increasing enthalpy operation mode, by increasing enthalpy, air conditioner can be reduced The decaying that inside generates, to reduce influence of the air conditioner internal environment to the compression effectiveness of compressor from another point of view, in turn Increase the refrigerating capacity or heating capacity of air conditioner；It also avoids compressor to run with high running frequency, plays noise reduction Effect.

Optionally, the value range of the 4th pressure threshold is 0.4~0.7MPa.Wherein, it in entire air conditioner, inhales The range of atmospheric pressure is 0.1~1.5MPa, and the running environment in the pressure limit is not extreme, not will lead to the instant of compressor CPU in failure (being out of order in the very short time) and air conditioner, the failure of controller, if but keeping the operation ring for a long time Border, can seriously affect the compressor in air conditioner, CPU, and the normal operation of controller etc. shortens the service life of electronic device. It is envisaged that due to the refrigerating capacity of the same running frequency of compressor under the refrigerating capacity and twin-tub mode of single cylinder mode compression machine It differs greatly, so after air conditioner is switched to twin-tub mode, to whether being switched to the 4th pressure threshold of twin-tub increasing enthalpy mode Value is also required to be judged according to the actual demand in the case of twin-tub mode operation.Using 0.4~0.7MPa as the 4th pressure threshold Value controls the switching that the air conditioner carries out twin-tub operation mode and twin-tub increasing enthalpy operation mode, not only can be to avoid not considering Serious consequence caused by the difference of the refrigerating/heating ability of identical frequency under single cylinder and twin-tub mode, and can be to avoid compression Machine pressure at expulsion keeps elevated pressures for a long time, and then can bring to avoid to compressor compared with macrolesion, prevents from shortening compressor Service life；High running frequency bring noise can also be avoided simultaneously.

Optionally, the 4th row suction is 10~12 than the value range of threshold value.Wherein, in entire air conditioner, exhaust The allowed band of the ratio of pressure and pressure of inspiration(Pi) is 1~20.The ratio of pressure at expulsion and pressure of inspiration(Pi) is excessively high, it is meant that entire In the operating condition of air conditioner, operating pressure is larger, and each operation part-load of air conditioner is higher, if keeping such work for a long time Condition can not only shorten the service life of associated components, but also there may be other serious consequences such as components damage, failure.It needs Consider, due to the refrigerating capacity difference of the same running frequency of compressor under the refrigerating capacity and twin-tub mode of single cylinder mode compression machine It is very big, so after air conditioner is switched to twin-tub mode, to whether being switched to the 4th row of twin-tub increasing enthalpy mode and inhale and compare threshold value It is also required to be judged according to the actual demand in the case of twin-tub mode operation.10~12 are inhaled as the 4th row than threshold value, control Make the switching that the air conditioner carries out twin-tub operation mode and twin-tub increasing enthalpy operation mode, not only can to avoid do not consider single cylinder with Serious consequence caused by the difference of the refrigerating/heating ability of identical frequency under twin-tub mode, and can be to avoid compressor air-discharging Lengthy pressure keep elevated pressures, and then can to avoid brought to compressor prevented compared with macrolesion shorten compressor use Service life；High running frequency bring noise can also be avoided simultaneously.

When being described to five preset conditions the case where, we in a chiller mode under outer ring temperature for (need Illustrate, corresponding three embodiments of two conditions have relatively high similarity, in the embodiment for knowing delivery temperature In the case of, those skilled in the art also are understood that other two embodiments) it is illustrated.The pressure of inspiration(Pi) is greater than the 5th pressure Force threshold, it is meant that show the load reduction of air conditioner, only take twin-tub operation mode, compressor is with lower running frequency Can meet the needs of air conditioner；In addition the decaying inside air conditioner is also shown to also reduce or disappear, air conditioner Refrigerating capacity or heating capacity have been higher than normal demand.

In addition, the 5th pressure threshold is greater than the 4th pressure threshold, the 6th row inhales than threshold value less than described 4th row inhales than threshold value, and twin-tub operation mode can be made to be switched to twin-tub increasing enthalpy operation mode and twin-tub increasing enthalpy operation mould The Rule of judgment that formula is switched to twin-tub operation mode has certain separation, to avoid the occurrence of air conditioner in twin-tub operation mode The case where frequently back and forth switching between twin-tub increasing enthalpy operation mode.

Optionally, the value range of the 5th pressure threshold is 0.5~0.8MPa.Based on described above, pressure of inspiration(Pi) It is excessively high, it is meant that in the operating condition of entire air conditioner, each operation part-load of operating pressure very little, air conditioner is very low, compression Machine can meet the refrigeration or heating needs of air conditioner with very low running frequency, but the energy consumption of air conditioner is too high, Energy Efficiency Ratio It is too low.After air conditioner to be switched to twin-tub increasing enthalpy mode, to whether being switched to the 5th pressure threshold of twin-tub mode and be also required to Judged according to the actual demand in the case of twin-tub increasing enthalpy mode operation.Using 0.5~0.8MPa as the 5th pressure threshold, control Make the switching that the air conditioner carries out twin-tub increasing enthalpy operation mode and twin-tub operation mode, not only can to avoid do not consider single cylinder with Serious consequence caused by the difference of the refrigerating/heating ability of identical frequency under twin-tub mode, and can be long to avoid air conditioner when Between keep larger heating/refrigerating capacity and compressor for a long time with the operation of lower running frequency (this meeting so that air conditioning energy consumption too It is high), to not only can satisfy the demand of air conditioner, but also the energy consumption of air conditioner can be reduced, improve the Energy Efficiency Ratio of air conditioner.

Optionally, the value range of the 6th pressure threshold is 1~1.3MPa.Operation mould is carried out to air conditioner based on this The switching of formula, can keep for a long time larger heating/refrigerating capacity to avoid air conditioner and compressor is for a long time with lower operation frequency Rate runs (this meeting is so that air conditioning energy consumption is too high), to not only can satisfy the demand of air conditioner, but also can reduce the energy of air conditioner Consumption, improves the Energy Efficiency Ratio of air conditioner.

The 5th row suction is 6~8 than the value range of threshold value.The switching of operation mode is carried out to air conditioner based on this, Larger heating/refrigerating capacity can be kept for a long time to avoid air conditioner and compressor runs (this for a long time with lower running frequency Meeting is so that air conditioning energy consumption is too high), to not only can satisfy the demand of air conditioner, but also the energy consumption of air conditioner can be reduced, improved empty Adjust the Energy Efficiency Ratio of device.

The 6th row suction is 9~10.5 than the value range of threshold value.Based on described above, pressure at expulsion and pressure of inspiration(Pi) Ratio it is too low, it is meant that in the operating condition of entire air conditioner, operating pressure very little, each operation part-load of air conditioner is very Low, compressor can meet the refrigeration or heating needs of air conditioner with very low running frequency, but under this kind of operating condition, air conditioner Energy consumption it is too high, Energy Efficiency Ratio is too low.After air conditioner to be switched to twin-tub increasing enthalpy mode, to whether being switched to the of twin-tub mode Six rows inhale to be also required to be judged according to the actual demand in the case of twin-tub increasing enthalpy mode operation than threshold value.By 9~10.5 conducts 6th row, which inhales, controls the switching that the air conditioner carries out twin-tub increasing enthalpy operation mode and twin-tub operation mode than threshold value, not only may be used To avoid not considering serious consequence caused by the difference of the refrigerating/heating ability of identical frequency under single cylinder and twin-tub mode, and Larger heating/refrigerating capacity can be kept for a long time to avoid air conditioner and compressor runs (this for a long time with lower running frequency Meeting is so that air conditioning energy consumption is too high), to not only can satisfy the demand of air conditioner, but also the energy consumption of air conditioner can be reduced, improved empty Adjust the Energy Efficiency Ratio of device.

Optionally, the air conditioner is switched to twin-tub increasing enthalpy operation mode and specifically included by the step 1000:

Step 1010, the operation mode of the air conditioner is switched to twin-tub increasing enthalpy operation mode；

Step 1020, the second preset time is run under twin-tub increasing enthalpy operation mode.

Optionally, as shown in connection with fig. 10, the step 400, after the air conditioner is switched to twin-tub operation mode, packet It includes:

Step 1200, judge whether the operating parameter meets the 6th preset condition；

If meeting the 6th preset condition, return step 800.

It herein, is that the air conditioner is switched to twin-tub operation mould for whether meeting the judgement of the 6th preset condition It is carried out after formula.Meet the 6th preset condition, show the load reduction of air conditioner, only take single cylinder operation mode, compresses Machine can meet the needs of air conditioner with lower running frequency；In addition the decaying inside air conditioner is also shown to also reduce Or disappear, the refrigerating capacity or heating capacity of air conditioner have been higher than normal demand.

Condition one: under refrigeration mode, the outer ring temperature is less than the second circumstance temperature threshold value, and the second circumstance temperature threshold value is small In the first circumstance temperature threshold value；

Condition two: under refrigeration mode, the condensation temperature is less than the described second solidifying warm threshold value, and the described second solidifying warm threshold value is small In the described first solidifying warm threshold value；

Condition three: under heating mode, the outer ring temperature is greater than the 4th circumstance temperature threshold value, and the 4th circumstance temperature threshold value is big In the second circumstance temperature threshold value；

Condition four: under heating mode, the condensation temperature is less than the described 4th solidifying warm threshold value, and the described 4th solidifying warm threshold value is small In the described second solidifying warm threshold value；

When being described to six preset conditions the case where, we in a chiller mode under outer ring temperature for (need Illustrate, corresponding three embodiments of five conditions have relatively high similarity, in the embodiment for knowing delivery temperature In the case of, those skilled in the art also are understood that other two embodiments) it is illustrated.The outer ring temperature is less than described the Two circumstance temperature threshold values, it is meant that show the load reduction of air conditioner, only take single cylinder operation mode, compressor is with lower operation Frequency can meet the needs of air conditioner；In addition it also shows the decaying inside air conditioner to also reduce or disappear, air-conditioning The refrigerating capacity or heating capacity of device have been higher than normal demand

In addition, the second circumstance temperature threshold value is less than the first circumstance temperature threshold value, the described second solidifying warm threshold value is less than described the One solidifying warm threshold value, the 4th circumstance temperature threshold value are greater than the second circumstance temperature threshold value, and the described 4th solidifying warm threshold value is less than described second Solidifying temperature threshold value, the 7th row, which inhales, is less than the 5th row suction than threshold value than threshold value, and single cylinder operation mode can be made to be switched to The Rule of judgment that twin-tub operation mode and twin-tub operation mode are switched to single cylinder operation mode has certain separation, thus Avoid the occurrence of the case where air conditioner frequently back and forth switches between single cylinder operation mode and twin-tub operation mode.

Optionally, the value range of the second circumstance temperature threshold value is 30~40 DEG C.Operation mould is carried out to air conditioner based on this The switching of formula, can keep for a long time larger heating/refrigerating capacity to avoid air conditioner and compressor is for a long time with lower operation frequency Rate runs (this meeting is so that air conditioning energy consumption is too high), to not only can satisfy the demand of air conditioner, but also can reduce the energy of air conditioner Consumption, improves the Energy Efficiency Ratio of air conditioner.

Optionally, the value range of the described second solidifying warm threshold value is 32~43 DEG C.Air conditioner is being switched to twin-tub mode Afterwards, to whether be switched to single cylinder mode the second solidifying warm threshold value be also required to according to the actual demand in the case of twin-tub mode operation into Row judgement.The switching for carrying out operation mode to air conditioner based on this, can keep for a long time larger heating/refrigeration to avoid air conditioner Ability and compressor run (this meeting is so that air conditioning energy consumption is too high) for a long time with lower running frequency, to both can satisfy air-conditioning The demand of device, and the energy consumption of air conditioner can be reduced, improve the Energy Efficiency Ratio of air conditioner.

Optionally, the value range of the 4th circumstance temperature threshold value is -3~7 DEG C.Operation mode is carried out to air conditioner based on this Switching, can keep for a long time larger heating/refrigerating capacity and compressor for a long time with lower running frequency to avoid air conditioner It runs (this meeting is so that air conditioning energy consumption is too high), to not only can satisfy the demand of air conditioner, but also the energy consumption of air conditioner can be reduced, Improve the Energy Efficiency Ratio of air conditioner.

Optionally, the value range of the described 4th solidifying warm threshold value is 19~28 DEG C.Air conditioner is being switched to twin-tub mode Afterwards, to whether be switched to single cylinder mode the 4th solidifying warm threshold value be also required to according to the actual demand in the case of twin-tub mode operation into Row judgement.The switching for carrying out operation mode to air conditioner based on this, can keep for a long time larger heating/refrigeration to avoid air conditioner Ability and compressor run (this meeting is so that air conditioning energy consumption is too high) for a long time with lower running frequency, to both can satisfy air-conditioning The demand of device, and the energy consumption of air conditioner can be reduced, improve the Energy Efficiency Ratio of air conditioner.

Optionally, the 7th row suction is 5.5~7 than the value range of threshold value.Air conditioner is being switched to twin-tub mode Afterwards, to whether being switched to the 7th row of single cylinder mode and inhale and be also required to according to the actual demand in the case of twin-tub mode operation than threshold value Judged.The switching for carrying out operation mode to air conditioner based on this, can keep for a long time larger heating/system to avoid air conditioner Cold energy power and compressor run (this meeting is so that air conditioning energy consumption is too high) for a long time with lower running frequency, to both can satisfy sky The demand of device is adjusted, and the energy consumption of air conditioner can be reduced, improves the Energy Efficiency Ratio of air conditioner.

Optionally, as shown in connection with fig. 10, the air conditioner is switched to twin-tub increasing enthalpy operation mode by the step 1000 Afterwards, comprising:

Step 1400, judge whether the operating parameter meets the 6th preset condition；

If meeting the 6th preset condition, return step 800.

Whether this step is that the air conditioner under twin-tub increasing enthalpy operation mode is judged and switched, thus by meeting The air conditioner is switched to single cylinder operation mode by twin-tub increasing enthalpy operation mode, can both expired by the judgement of the 6th preset condition The demand of sufficient air conditioner, and the energy consumption of air conditioner can be reduced, improve the Energy Efficiency Ratio of air conditioner；In addition, in twin-tub increasing enthalpy mode Under, it also determines whether to be switched to single cylinder mode, so as to reach the smooth switching between three modes, avoids switching not It is enough (single cylinder operation mode to be switched to again if be switched to after twin-tub operation mode, due to also needing under twin-tub operation mode in time Reacquire data judgement etc., will lead to the delay on switching time) caused by compressor inside air conditioner and other zero The consume of part etc. and the energy consumption of air conditioner are excessive etc..

Optionally, the operating parameter further includes the running frequency of compressor.

Wherein, the running frequency of compressor can be measured directly by the electric controller in air conditioner, measure compression The running frequency of machine.Measurement is simple, convenient, is convenient for judging.

In this way, the basis in the application by pressure of inspiration(Pi) in conjunction with condensation temperature or outer ring temperature or pressure at expulsion On, judged in conjunction with the running frequency of compressor, that is to say pressure of inspiration(Pi) meet the first preset condition, outer ring temperature, In the case that any one in condensation temperature, in delivery temperature also meets the first preset condition, while the operation frequency of compressor Rate also meets the first preset condition, can further decrease its uncertainty, increases the accuracy of judgement, so that air conditioner The switching of operation mode is more accurate.

On this basis, using the target operating frequency of compressor as operating parameter, can than running frequency judgement more It is accurate.Main reason is that in the control of air conditioner, for the ease of carrying out quick refrigerating/heating, the operation of compressor Frequency can generally be run according to the target operating frequency of setting, the control section in air conditioner, by changing object run Frequency influences come the actual motion frequency on compressor.

The application also provides a kind of computer readable storage medium, which has instruction, when The control method of the aforementioned air conditioner may be implemented in instruction when being loaded and executed by processor.

The technical solution of the embodiment of the present invention substantially the part that contributes to existing technology or the technology in other words The all or part of scheme can be embodied in the form of software products, which is stored in a storage and is situated between In matter, including some instructions are used so that a computer equipment (can be personal computer, server or the network equipment Deng) or processor (processor) execute the method for the embodiment of the present invention all or part of the steps.And storage above-mentioned is situated between Matter includes: the various media that can store program code such as USB flash disk, mobile hard disk, ROM, RAM, magnetic or disk.

The control method of air conditioner is executed in this way, air conditioner can be controlled in single cylinder operation mode according to operating parameter, it is double Cylinder operation mode, single cylinder increasing enthalpy operation mode switch between twin-tub increasing enthalpy operation mode.Have as a result, in air conditioner big negative When the demand of lotus, the operation mode of the air conditioner can be switched to twin-tub operation mode or twin-tub increasing enthalpy operation mode, with The fan-out capability of compressor is improved, to improve the refrigeration effect or heating effect and refrigerating speed or heating of air conditioner Speed, while operation noise can also be reduced.When air conditioner load is lower, the operation mode of the air conditioner can be switched to Single cylinder increasing enthalpy operation mode improves the Energy Efficiency Ratio of air conditioner so as to the energy consumption of relatively low air conditioner；In air conditioner load When further decreasing, the operation mode of the air conditioner can be switched to single cylinder operation mode, so as to further decrease energy Consumption.

The application also provides a kind of control device of air conditioner, including processor and memory, the memory storage There is control program, the control program realizes the control method of the aforementioned air conditioner when being executed by processor.

As shown in figure 11, the application also provides a kind of air conditioner, including controller 1, duplex cylinder compressor 2 and increasing enthalpy component 3, Switching of the duplex cylinder compressor 2 to single cylinder and twin-tub, the increasing enthalpy component 3 is to realize increasing enthalpy, which is characterized in that described Controller 1 is used to control the control method for the air conditioner that the air conditioner is realized as described in aforementioned.

The control method of air conditioner is executed in this way, air conditioner can be controlled in single cylinder operation mode according to operating parameter, it is double Cylinder operation mode, single cylinder increasing enthalpy operation mode switch between twin-tub increasing enthalpy operation mode.Have as a result, in air conditioner big negative When the demand of lotus, the operation mode of the air conditioner can be switched to twin-tub operation mode or twin-tub increasing enthalpy operation mode, with The fan-out capability of compressor is improved, to improve the refrigeration effect or heating effect and refrigerating speed or heating of air conditioner Speed, while operation noise can also be reduced.When air conditioner load is lower, the operation mode of the air conditioner can be switched to Single cylinder increasing enthalpy operation mode improves the Energy Efficiency Ratio of air conditioner so as to the energy consumption of relatively low air conditioner；In air conditioner load When further decreasing, the operation mode of the air conditioner can be switched to single cylinder operation mode, so as to further decrease energy Consumption.Although present disclosure is as above, present invention is not limited to this.Anyone skilled in the art are not departing from the present invention Spirit and scope in, can make various changes or modifications, therefore protection scope of the present invention should be limited with claim Range subject to.

Claims

1. a kind of control method of air conditioner characterized by comprising

The air conditioner obtains the operating parameter of air conditioner, the fortune to when operational mode is heating mode or refrigeration mode Row parameter includes outer ring temperature or condensation temperature or pressure at expulsion and pressure of inspiration(Pi)；

Judge whether the operating parameter meets the first preset condition；

2. the control method of air conditioner as described in claim 1, which is characterized in that meeting any one in following condition When, determine that the operating parameter meets first preset condition:

Condition one: under refrigeration mode, the pressure of inspiration(Pi) is less than or equal to first pressure threshold value and the outer ring temperature is more than or equal to First circumstance temperature threshold value；

Condition two: under refrigeration mode, the pressure of inspiration(Pi) is less than or equal to first pressure threshold value and the condensation temperature is more than or equal to First solidifying warm threshold value；

Condition three: under heating mode, the pressure of inspiration(Pi) is less than or equal to first pressure threshold value and the outer ring temperature is less than or equal to Third circumstance temperature threshold value；

Condition four: under heating mode, the pressure of inspiration(Pi) is less than or equal to first pressure threshold value and the condensation temperature is more than or equal to The solidifying warm threshold value of third；

3. the control method of air conditioner as described in claim 1, which is characterized in that described that the air conditioner is switched to twin-tub Operation mode specifically includes:

The second preset time is run under twin-tub operation mode.

4. the control method of the air conditioner as described in claims 1 or 2 or 3, which is characterized in that further include:

If not meeting first preset condition, judge whether the operating parameter meets the second preset condition, described second is pre- If condition and first preset condition are without intersection；

Judge whether the operating parameter meets third preset condition, the third preset condition and first preset condition, Second preset condition is without intersection；

If meeting the third preset condition, the air conditioner is switched to single cylinder operation mode and is returned described in the judgement Whether operating parameter meets the second preset condition step.

5. the control method of air conditioner as claimed in claim 4, which is characterized in that meeting any one in following condition When, determine that the operating parameter meets second preset condition:

Condition two: the ratio of the pressure at expulsion and the pressure of inspiration(Pi) is greater than second row and inhales than threshold value and be less than first row suction ratio Threshold value.

6. the control method of air conditioner as claimed in claim 4, which is characterized in that meeting any one in following condition When, determine that the operating parameter meets the third preset condition:

Condition one: the pressure of inspiration(Pi) is greater than third pressure threshold；The third pressure threshold is greater than second pressure threshold value；

Condition two: the ratio of the pressure at expulsion and the pressure of inspiration(Pi) is less than third row and inhales than threshold value, and the third row inhales ratio Threshold value is less than second row suction and compares threshold value.

7. the control method of air conditioner as claimed in claim 4, which is characterized in that described that the air conditioner is switched to single cylinder After increasing enthalpy operation mode, comprising:

Rejudge whether the operating parameter meets the first preset condition；

8. the control method of the air conditioner as described in claims 1 or 2 or 3, which is characterized in that described to switch the air conditioner After twin-tub operation mode, comprising:

Judge whether the operating parameter meets the 4th preset condition；

Judge whether the operating parameter meets the 5th preset condition, the 5th preset condition and the 4th preset condition without Intersection；

9. the control method of air conditioner as claimed in claim 8, which is characterized in that meeting any one in following condition When, determine that the operating parameter meets the 4th preset condition:

10. the control method of air conditioner as claimed in claim 8, which is characterized in that any one in following condition meeting When a, determine that the operating parameter meets the 5th preset condition:

Condition one: the pressure of inspiration(Pi) is greater than the 5th pressure threshold and less than the 6th pressure threshold, and the 5th pressure threshold is big In the 4th pressure threshold；

Condition two: the ratio of the pressure at expulsion and the pressure of inspiration(Pi) is greater than the 5th row and inhales than threshold value and inhale ratio less than the 6th row Threshold value；6th row, which inhales to inhale than threshold value less than the 4th row, compares threshold value.

11. the control method of the air conditioner as described in claims 1 or 2 or 3, which is characterized in that described to cut the air conditioner After being changed to twin-tub operation mode, comprising:

Judge whether the operating parameter meets the 6th preset condition；

12. the control method of air conditioner as claimed in claim 8, which is characterized in that it is described the air conditioner is switched to it is double After cylinder increasing enthalpy operation mode, comprising:

Judge whether the operating parameter meets the 6th preset condition；

13. the control method of air conditioner as claimed in claim 11, which is characterized in that any one in following condition meeting When a, determine that the operating parameter meets the 6th preset condition:

Condition two: under refrigeration mode, the condensation temperature warm threshold value solidifying less than second；

Condition four: under heating mode, the condensation temperature warm threshold value solidifying less than the 4th；

Condition five: the ratio of the pressure at expulsion and the pressure of inspiration(Pi) is inhaled less than the 7th row than threshold value, and the 7th row inhales ratio Threshold value is inhaled less than the 5th row compares threshold value.

14. the control method of the air conditioner as described in claims 1 or 2 or 3, which is characterized in that the operating parameter further includes The running frequency of compressor.

15. a kind of computer readable storage medium is stored with instruction, which is characterized in that described instruction is loaded and held by processor The control method of the air conditioner as described in any in claim 1-14 is realized when row.

16. a kind of air conditioner, including controller (1), duplex cylinder compressor (2) and increasing enthalpy component (3), the duplex cylinder compressor (2) To realize the switching of single cylinder and twin-tub, the increasing enthalpy component (3) is to the air conditioner increasing enthalpy, which is characterized in that described Controller (1) is used to control the control method for the air conditioner that the air conditioner is realized as described in any in claim 1-14.