CN104848489B - The control method of air conditioner - Google Patents
The control method of air conditioner Download PDFInfo
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- CN104848489B CN104848489B CN201510250998.5A CN201510250998A CN104848489B CN 104848489 B CN104848489 B CN 104848489B CN 201510250998 A CN201510250998 A CN 201510250998A CN 104848489 B CN104848489 B CN 104848489B
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
- F24F11/84—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Atmospheric Sciences (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses a kind of control method of air conditioner, comprise the following steps：Open the master cylinder, control the aperture maximum of first control valve to open the auxiliary cylinder；The running current I of the positive displacement compressor is detected, and judges whether running current I is more than setting electric current value IB；As the running current I ＞ setting electric current value IB, the aperture of first control valve reduces the first predetermined aperture every time, as the running current I≤setting electric current value IB, keeps the aperture of the first control valve constant.The control method of the air conditioner is by detecting running current I and by running current I compared with setting electric current value IB, the aperture of the first control valve is controlled according to comparative result, change auxiliary cylinder to export to the amount of the refrigerant in follow-up exchange piece, so as to carry out gentle control to the temperature of interior, the reliability of positive displacement compressor can not only be improved, and comfortableness can be improved to a certain extent.
Description
Technical field
The present invention relates to air-conditioning technical field, more particularly to a kind of control method of air conditioner.
Background technology
At present, using there is constant speed positive displacement compressor on air conditioner, the positive displacement compressor has two cylinders.Correlation technique
In, when air conditioner is opened, master cylinder is opened, indoor demand is then judged, opens as needed or suspend auxiliary cylinder, still, this
For kind method in the auxiliary cylinder of start-stop, indoor temperature change generated in case is larger, can not gently control, reduce Consumer's Experience.
The content of the invention
It is contemplated that at least solves one of technical problem in correlation technique to a certain extent.Therefore, the present invention carries
Going out a kind of control method of air conditioner, the control method of the air conditioner can carry out gentle control to the temperature of interior, so as to
Comfortableness is improved to a certain extent.
The control method of air conditioner according to embodiments of the present invention, the air conditioner includes positive displacement compressor and aperture can
The first control valve adjusted, the positive displacement compressor have exhaust outlet, gas returning port, blow vent, master cylinder and auxiliary cylinder, the ventilation
Mouthful connected with the slide plate chamber of the auxiliary cylinder, be in series with the second control valve between the gas returning port and the blow vent, described the
The both ends of one control valve are connected with the exhaust outlet and the blow vent, and the control method comprises the following steps：S1：Open institute
State master cylinder, control the aperture maximum of first control valve to open the auxiliary cylinder；S2：Detect the positive displacement compressor
Running current I, and judge whether running current I is more than setting electric current value IB；S3：When the running current I ＞ setting electric current values
During IB, the aperture of first control valve reduces the first predetermined aperture every time, as the running current I≤setting electric current value IB
When, keep the aperture of the first control valve constant.
The control method of air conditioner according to embodiments of the present invention, master cylinder is first turned on, and control the first control valve
Then aperture maximum detects the running current I of positive displacement compressor and judges whether running current I is more than setting to open auxiliary cylinder
Current value IB, if running current I is more than setting electric current value IB, the aperture of the first control valve is reduced to first every time and makes a reservation for open
Degree, if running current I is less than or equal to setting electric current value IB, keeps the aperture of the first control valve constant.Therefore, it is of the invention
The control method of the air conditioner of embodiment by detecting running current I and can be carried out running current I and setting electric current value IB
Compare, according to comparative result control the first control valve aperture, so as to adjust auxiliary cylinder be output to it is cold in follow-up exchange piece
The amount of matchmaker, and then gentle control is carried out to the temperature of interior, comfortableness is improved to a certain extent.
According to some embodiments of the present invention, also comprise the following steps after step s 3：S4：Detect indoor environment temperature
T1, and judge whether indoor environment temperature T1 is more than design temperature Ts；S5：As the indoor environment temperature T1 ＞ design temperatures Ts
When, then keep the aperture of first control valve；As indoor environment temperature T1≤design temperature Ts, detection first control
The aperture of valve, the aperture reduction second of first control valve is made a reservation for open if first control valve is in open mode
Degree, remained off if first control valve is closed.
Preferably, in step sl, after the master cylinder is opened, delay predetermined time opens first control valve
To open the auxiliary cylinder.
Alternatively, the span of the scheduled time is 0s~60s.
Alternatively, first control valve is electric expansion valve or magnetic valve.
Specifically, second control valve is from the gas returning port to the list of one-way conduction on the direction of the blow vent
To valve.
Brief description of the drawings
Fig. 1 is the structural representation of air conditioner according to embodiments of the present invention；
Fig. 2 is the flow chart of the control method of air conditioner according to embodiments of the present invention；
Fig. 3 is the flow chart according to the control method of the air conditioner of the specific embodiment of the invention.
Reference：
100：Air conditioner；
11：Master cylinder；12：Auxiliary cylinder；A：Exhaust outlet；B：Gas returning port；B’：Blow vent
2：Commutate component；D：First valve port；C：Second valve port；E：3rd valve port；S：4th valve port；
3：Outdoor heat exchanger；4：Indoor heat exchanger；5：Restricting element；
6：First control valve；7：Second control valve；
8：Gas-liquid separator；
91：First three-way pipe；92：Second three-way pipe；93：3rd three-way pipe.
Embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings.Below with reference to
The embodiment of accompanying drawing description is exemplary, it is intended to for explaining the present invention, and is not considered as limiting the invention.
In the description of the invention, it is to be understood that term " on ", " under ", "front", "rear", "left", "right", " perpendicular
Directly ", " level ", " top ", " bottom " " interior ", " outer ", etc. instruction orientation or position relationship be based on orientation shown in the drawings or position
Relation is put, it is of the invention necessary with simplified description, rather than the device or element of instruction or hint meaning to be for only for ease of description
With specific orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are only used for describing purpose, and it is not intended that instruction or hint relative importance
Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can be expressed or
Implicitly include at least one this feature.In the description of the invention, " multiple " are meant that at least two, such as two, three
It is individual etc., unless otherwise specifically defined.
In the present invention, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", term should be done
It broadly understood, for example, it may be fixedly connected or be detachably connected, or integrally；Can mechanically connect, also may be used
To be electrical connection or can communicate each other；Can be joined directly together, can also be indirectly connected by intermediary, can be two members
The interaction relationship of connection or two elements inside part, limited unless otherwise clear and definite.For the ordinary skill of this area
For personnel, the concrete meaning of above-mentioned term in the present invention can be understood as the case may be.
In the present invention, unless otherwise clearly defined and limited, fisrt feature can be with "above" or "below" second feature
It is that the first and second features directly contact, or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature are directly over second feature or oblique upper, or be merely representative of
Fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " can be
One feature is immediately below second feature or obliquely downward, or is merely representative of fisrt feature level height and is less than second feature.
The control method of air conditioner proposed according to embodiments of the present invention described with reference to the accompanying drawings.
With reference first to Fig. 1 describe the embodiment of the present invention proposition control method applicable air conditioner 100 structure.
As shown in figure 1, air conditioner 100 can include：Positive displacement compressor, commutation component 2, outdoor heat exchanger 3, indoor heat exchange
Device 4, restricting element 5, the first control valve 6, the second control valve 7, the first three-way pipe 91, the second three-way pipe 92 and the 3rd three-way pipe
93.It is understood that air conditioner 100 also includes controller, controller and positive displacement compressor, commutation component 2, the first control valve
6 are connected with the second control valve 7 to control the running status of each parts.
As shown in figure 1, positive displacement compressor has exhaust outlet A, gas returning port B, blow vent B ', master cylinder 11 and auxiliary cylinder 12.
As shown in figure 1, blow vent B ' can connect with the slide plate chamber of auxiliary cylinder 12, thus, refrigerant after the compression of master cylinder 11 can be from
Exhaust outlet A is discharged, and auxiliary cylinder 12 auxiliary master cylinder 11 can be utilized to be compressed refrigerant, so as to increase in follow-up heat-exchange system
The amount of refrigerant, heat exchange efficiency is improved, after completing follow-up heat exchange, refrigerant can flow back to positive displacement compressor from gas returning port B, and realization follows
Ring.
Commutation component 2 can have the first valve port D, the second valve port C, the 3rd valve port E and the 4th valve port S.Specifically, such as
Shown in Fig. 1, the first valve port D can connect with one of in the second valve port C and the 3rd valve port E, and the 4th valve port S can be with the second valve
Another connection in mouth C and the 3rd valve port E, and the first valve port D is connected with the exhaust outlet A and blow vent B ' of positive displacement compressor,
4th valve port S is connected with gas returning port B, so, can flow to and change after exhaust outlet A discharges through the high pressure refrigerant of positive displacement compressor compression
Discharged to the first valve port D of component 2, and from the second valve port C or the 3rd valve port E, follow-up exchange piece is flowed to, when refrigerant flows back to change
During positive displacement compressor, the 4th valve port S can be flowed to from one in the second valve port C and the 3rd valve port E, and flow to back from the 4th valve port S
Gas port B, and then compressor is flowed back to, realize recycling for refrigerant.
As preferred embodiment, commutation component 2 can be four-way valve, so as to so that the structure letter of air conditioner 100
It is single compact.It is, of course, understood that commutation component 2 may be formed as other structures, as long as there is the first valve port D to the
Four valve port S and it can be commutated, on the other hand, the present invention and being not especially limited.
As shown in figure 1, one end of outdoor heat exchanger 3 can be connected with the second valve port C, the first end of indoor heat exchanger 4 can be with
3rd valve port E is connected, also, can be in series with throttling between the other end of outdoor heat exchanger 3 and the second end of indoor heat exchanger 4
Element 5, so, when air conditioner 100 runs and freezed, the refrigerant after positive displacement compressor compresses can flow into room from the second valve port C
External heat exchanger 3, indoor heat exchanger 4 is flowed to after the reducing pressure by regulating flow of restricting element 5, then can return to commutation group from the 3rd valve port E
Part 2, and then positive displacement compressor is flowed back to from the 4th valve port S, kind of refrigeration cycle is completed, as shown in the solid arrow in Fig. 1.
And when air conditioner 100 runs and heated, the refrigerant after positive displacement compressor compresses can be from the 3rd valve port E by indoor
The first end of heat exchanger 4 flows into indoor heat exchanger 4, throttles and drops through restricting element 5 after the outflow of the second end of indoor heat exchanger 4
Pressure, then flows to outdoor heat exchanger 3, then flows into commutation component 2, then flows back to positive displacement compressor from the 4th valve port S, completes heating
Circulation, as shown in the dotted arrow in Fig. 1.
According to some embodiments of the present invention, restricting element 5 can be capillary, can be to high pressure refrigerant section by capillary
Stream decompression, to realize heat exchange.Certainly, the present invention is not limited thereto, and restricting element 5 can also be electric expansion valve, pass through electronics
Expansion valve realize cold medium flux in air conditioner 100 automatically adjust and reducing pressure by regulating flow, can further realize changing for refrigerant and environment
Heat effect.
As shown in figure 1, three mouths of pipe of the first three-way pipe 91 respectively with exhaust outlet A, one end of the first control valve 6 and commutation
First valve port D of component 2 is connected.Three mouths of pipe of the second three-way pipe 92 respectively with blow vent B ', the other end of the first control valve 6
It is connected with the first end of the second control valve 7, three mouths of pipe of the 3rd three-way pipe 93 the 4th valve port S with the component 2 that commutates, the respectively
Second end of two control valves 7 is connected with gas returning port B.Wherein, the first control valve 6 is electric expansion valve or magnetic valve.Second control
Valve 7 processed can be check valve or magnetic valve.When the second control valve 7 is check valve, check valve from the 3rd three-way pipe 93 to
One-way conduction on the direction of second three-way pipe 92, i.e. check valve are from gas returning port B to one-way conduction on blow vent B ' direction.
The aperture of first control valve 6 can be adjustable, when the first control valve 6 is in open mode, now due to row
Gas port A connects with blow vent B ', therefore blow vent B ' is in hyperbaric environment, so as to which the slide plate chamber in auxiliary cylinder 12 is in high compression ring
Border, the slide plate in auxiliary cylinder 12 only can be against on the periphery wall of piston, so as to which auxiliary cylinder 12 can be compressed action.When
When one control valve 6 is closed, now because gas returning port B connects with blow vent B ', therefore blow vent B ' is in low-voltage ring
Border, so as to which the slide plate chamber in auxiliary cylinder 12 be in environment under low pressure, the periphery wall of slide plate and piston in auxiliary cylinder 12 departs from cooperation,
So as to which auxiliary cylinder 12 stops compressed action.Thus, can be by adjusting opening for the first control valve 6 when the first control valve 6 is opened
Degree adjustment blow vent B ' environment, so as to adjust the decrement of auxiliary cylinder 12, and then adjusts the amount of the refrigerant in circulation.
As preferred embodiment, as shown in figure 1, air conditioner 100 can also include gas-liquid separator 8.Specifically,
Gas-liquid separator 8 can have gas-liquid entrance and gas vent, wherein, as shown in figure 1, gas-liquid entrance can connect with the 4th valve port S-phase,
Gas vent can be connected with gas returning port B.Thus, it is possible to positive displacement compressor will be flowed back to by the 4th valve port S by gas-liquid separator 8
Refrigerant separated, gaseous refrigerant is flowed out from gas vent, further flow back to positive displacement compressor from gas returning port B, from
And ensure only have gaseous coolant to be expelled back into positive displacement compressor, avoid positive displacement compressor that liquid hit phenomenon occurs, and then in certain journey
Protection is provided for positive displacement compressor on degree, extends its service life.
Fig. 2 is the flow chart according to the control method of the air conditioner of the embodiment of the present invention.Wherein, the air conditioner can be upper
State the air conditioner 100 of embodiment description.
As shown in Fig. 2 the control method of air conditioner according to embodiments of the present invention comprises the following steps：S1, open main gas
Cylinder, the aperture maximum of the first control valve is controlled to open auxiliary cylinder.
S2, the running current I for detecting positive displacement compressor, and judge whether running current I is more than setting electric current value IB, specifically
For, controller detects the running current I of positive displacement compressor；Running current I and setting electric current IB are compared.
It should be noted that setting electric current value IB is set before air conditioner brings into operation, it is necessary in controller, setting
Current value IB can be less than a value of the safe current of motor in positive displacement compressor, so, when the motor of positive displacement compressor
When electric current exceedes the current value, controller can carry out subsequent control, so as to avoid positive displacement compressor from overloading, to a certain extent
Positive displacement compressor is protected, and then extends its service life.
S3, as running current I ＞ setting electric current value IB, the aperture of the first control valve reduces the first predetermined aperture every time,
As running current I≤setting electric current value IB, keep the aperture of the first control valve constant.
Specifically, after controller compares running current I and setting electric current IB, when running current I is more than setting
During electric current IB, controller can control the first control valve that the aperture of the first control valve is reduced into the first predetermined aperture, for example, first
Predetermined aperture can be 20 steps, so as to reduce the flow that auxiliary cylinder is discharged to the refrigerant of follow-up exchange piece.Thus it is possible, on the one hand,
The motor load of positive displacement compressor can be reduced, so as to avoid motor from being chronically at overload, guarantor is provided to positive displacement compressor
Shield, the reliability of positive displacement compressor is improved, on the other hand, the amount of the refrigerant exported by adjusting auxiliary cylinder, interior can also be made
The regulation of temperature more they tends to gently, avoid indoor temperature suddenly change in a short time, comfortable when adjusting temperature so as to improve
Degree.
And when controller to running current I and setting electric current IB relatively after obtain running current I be less than or equal to setting
During electric current IB result, keep the aperture of the first control valve constant.Thus, it is possible on the premise of positive displacement compressor nonoverload,
Ensure the decrement of auxiliary cylinder, worked simultaneously by master cylinder and auxiliary cylinder, the amount of system mesohigh refrigerant is improved, so as to improve
Heat exchange efficiency, room temperature is relatively quickly reached design temperature, meet the needs of user.
The control method of air conditioner according to embodiments of the present invention, by detecting the running current I of positive displacement compressor, and will
Whether the aperture that running current I controls the first control valve compared with setting electric current value IB, according to comparative structure changes, so as to
It can ensure that positive displacement compressor can be on the premise of reliable and stable operation so that room temperature change is steady, improves comfortableness.
According to some embodiments of the present invention, the control method of above-mentioned air conditioner can also include：
S4, detection indoor environment temperature T1, and judge whether indoor environment temperature T1 is more than design temperature Ts.
Specifically, after air conditioner starts, controller obtains the operational mode of indoor environment temperature T1 and air conditioner, and
Indoor environment temperature T1 and design temperature Ts are compared according to above- mentioned information, judges whether indoor environment temperature T1 is more than and sets
Constant temperature degree Ts, foundation is provided for subsequent control.
S5, as indoor environment temperature T1 ＞ design temperature Ts, keep the first control valve aperture it is constant；Work as indoor environment
During temperature T1≤design temperature Ts, the aperture of the first control valve is detected, by the first control if the first control valve is in open mode
The aperture of valve processed reduces the second predetermined aperture, is remained off if the first control valve is closed.
Specifically, when air conditioner is when being in refrigeration mode, controller is to the indoor environment temperature T1 that detects and sets
Constant temperature degree Ts is compared, if indoor environment temperature T1 is more than the design temperature Ts of user, keeps opening for the first control valve
Spend constant, make auxiliary cylinder auxiliary master cylinder continue to be compressed refrigerant, to ensure to participate in the amount of the refrigerant of circulation in air conditioner,
Ensure that room temperature can relatively quickly reach design temperature, meet the needs of user.
When indoor temperature T1 is less than or equal to design temperature Ts under the adjustment effect of air conditioner, then it represents that reached system
Cold demand, now the opening of the first control valve is detected, if the first control valve is in open mode, by first
The aperture of control valve reduces the second predetermined aperture, for example, the second predetermined aperture can be 10 steps, is discharged to so as to reduce auxiliary cylinder
The flow of the refrigerant of follow-up exchange piece, cooling-down effect of the air conditioner to interior is reduced, makes the regulation of indoor temperature more they tend to put down
It is slow, while improving comfortableness, electric energy can be saved；If the first control valve is closed, auxiliary cylinder is illustrated
Stop auxiliary master cylinder compression refrigerant, now keep the first control valve to be closed, positive displacement compressor can not only be reduced
The electric energy of consumption, and indoor temperature can be preferably adjusted, so as to improve comfort level.
According to some embodiments of the present invention, in step sl, after master cylinder is opened, delay predetermined time opens the
One control valve, and make the aperture of the first control valve maximum, refrigerant is compressed with opening auxiliary cylinder auxiliary master cylinder.So as to
To play a part of protection to positive displacement compressor.
It is understood that, it is necessary to set the scheduled time in controller before air conditioner brings into operation.Alternatively,
The scheduled time can be the Default Value of air conditioner, can also be set by User Defined.Thus, when air conditioner bring into operation into
During row heat exchange, master cylinder is opened and refrigerant is compressed, and high pressure refrigerant is delivered in system using master cylinder and subsequently changed
Heat, room temperature is avoided to be widely varied, so as to improve comfort level to a certain extent.The first control is opened after delay predetermined time
Valve, auxiliary cylinder is also compressed to refrigerant, worked simultaneously by master cylinder and auxiliary cylinder, system mesohigh refrigerant can be improved
Amount, so as to improve heat exchange efficiency, room temperature is rapidly achieved design temperature, meet the needs of user.
According to some specific embodiments of the present invention, the span of the scheduled time can be 0s -60s, for example, predetermined
Time can be 40s, by setting the 40s scheduled time, can avoid room temperature start change when rate of change it is too big, make air-conditioning
Regulation of the device to indoor temperature is more gentle, so as to improve the comfort level of user to a certain extent.
The step of control method of the air conditioner of a specific example according to the present invention, is carried out with reference to Fig. 3 detailed
Description.Before air conditioner brings into operation, the timer in controller is reset, and need to set scheduled time t1, setting electric current
Value IB, the first predetermined aperture, the predetermined apertures of design temperature Ts and second etc..
S001, after air conditioner operation, master cylinder is opened, by master cylinder compression refrigerant, realize heat exchange.
S002, during timer.
S003, judges whether the duration t of master cylinder operation is more than scheduled time t1.If it is, perform step S004；
Step S002 is performed if not, returning.
S004, the first control valve standard-sized sheet, make auxiliary cylinder start to aid in master cylinder to be compressed refrigerant, increase heat-exchange system
In refrigerant amount.
S005, detect the running current I of positive displacement compressor.
S006, judges whether the running current I of positive displacement compressor is more than setting electric current value IB.If it is, perform step
S007；If not, perform step S008.
S007, the first control valve reduce the first predetermined aperture, export the refrigerant into system to reduce auxiliary cylinder, return to step
Rapid S005, continue to detect the running current I of positive displacement compressor.
S008, keep the aperture of the first control valve constant.
S009, detection indoor environment temperature T1.
S010, judges whether indoor environment temperature T1 is more than design temperature Ts.If it is, return to step S008；If not,
Perform step S011.
S011, detect the aperture of the first control valve.
S012, judges whether the first control valve is in opening.If it is, perform step S013；If not, return to step
Rapid S008.
S013, the aperture of the first control valve reduce the second predetermined aperture, reduce auxiliary cylinder and export the refrigerant into system, so
Return to step S009 afterwards, continue to detect indoor environment temperature TI.
In summary, the control method of air conditioner according to embodiments of the present invention, master cylinder is first turned on, postpones pre- timing
Between after control the first control valve aperture maximum to open auxiliary cylinder, then detect positive displacement compressor running current I and will fortune
Row electric current I is compared with setting electric current value IB, if running current I is more than setting electric current value IB, the aperture of the first control valve
Reduce the first predetermined aperture every time, to improve the reliability of positive displacement compressor；If running current I is less than or equal to setting electric current
Value IB, then keep the aperture of the first control valve constant., can also be to indoor environment temperature T1 when air conditioner is in refrigeration mode
It is compared with design temperature Ts, when indoor environment temperature is more than design temperature, keeps the aperture of the first control valve, and works as room
When interior environment temperature is less than or equal to design temperature, the aperture of the first control valve is detected, if the first control valve is in open mode,
The aperture of the first control valve is then reduced into the second predetermined aperture, to reduce the amount for the high pressure refrigerant that auxiliary cylinder is transported in system,
If the first control valve is closed, remain turned-off.Therefore, the control method of the air conditioner of the embodiment of the present invention can not only
The reliability of compressor is enough improved, and the regulation of indoor temperature can be made to more they tend to gently, so as to improve comfortableness.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or the spy for combining the embodiment or example description
Point is contained at least one embodiment or example of the present invention.In this manual, to the schematic representation of above-mentioned term not
Identical embodiment or example must be directed to.Moreover, specific features, structure, material or the feature of description can be with office
Combined in an appropriate manner in one or more embodiments or example.In addition, in the case of not conflicting, the skill of this area
Art personnel can be tied the different embodiments or example and the feature of different embodiments or example described in this specification
Close and combine.
Although embodiments of the invention have been shown and described above, it is to be understood that above-described embodiment is example
Property, it is impossible to limitation of the present invention is interpreted as, one of ordinary skill in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, changed, replacing and modification.
Claims (6)
1. a kind of control method of air conditioner, it is characterised in that the air conditioner includes positive displacement compressor and aperture adjustable the
One control valve, the positive displacement compressor have exhaust outlet, gas returning port, blow vent, master cylinder and auxiliary cylinder, the blow vent and institute
The slide plate chamber connection of auxiliary cylinder is stated, the second control valve, first control are in series between the gas returning port and the blow vent
The both ends of valve are connected with the exhaust outlet and the blow vent, and the control method comprises the following steps：
S1：Open the master cylinder, control the aperture maximum of first control valve to open the auxiliary cylinder；
S2：The running current I of the positive displacement compressor is detected, and judges whether running current I is more than setting electric current value IB；
S3：As the running current I ＞ setting electric current value IB, the aperture of first control valve reduces first and makes a reservation for open every time
Degree, as the running current I≤setting electric current value IB, keep the aperture of the first control valve constant.
2. the control method of air conditioner according to claim 1, it is characterised in that also include following step after step s 3
Suddenly：
S4：Indoor environment temperature T1 is detected, and judges whether indoor environment temperature T1 is more than design temperature Ts；
S5：As the indoor environment temperature T1 ＞ design temperature Ts, then the aperture of first control valve is kept；
As indoor environment temperature T1≤design temperature Ts, the aperture of first control valve is detected, if first control valve
The aperture of first control valve is then reduced into the second predetermined aperture in open mode, protected if first control valve is closed
Hold closed mode.
3. the control method of air conditioner according to claim 1, it is characterised in that in step sl, opening the master
After cylinder, delay predetermined time opens first control valve to open the auxiliary cylinder.
4. the control method of air conditioner according to claim 3, it is characterised in that the span of the scheduled time is
0s~60s.
5. the control method of air conditioner according to claim 1, it is characterised in that first control valve is electronic expansion
Valve or magnetic valve.
6. the control method of air conditioner according to claim 1, it is characterised in that second control valve is from described
Check valve of the gas returning port to one-way conduction on the direction of the blow vent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN105864980B (en) * | 2016-04-25 | 2019-03-12 | 广东美的制冷设备有限公司 | Air conditioner and its control method |
| CN106500266B (en) * | 2016-10-27 | 2019-07-30 | 广东美的制冷设备有限公司 | The control method and device of air conditioner and its duplex cylinder compressor |
| CN106801977B (en) * | 2017-01-09 | 2019-03-15 | 美的集团股份有限公司 | A kind of adjusting method of conditioners running conditions, system and air conditioner |
| CN106895550A (en) * | 2017-02-06 | 2017-06-27 | 广东美的暖通设备有限公司 | The guard method of motor overload and system |
| CN107289591A (en) * | 2017-06-30 | 2017-10-24 | 广东美的制冷设备有限公司 | Control method, control system, air conditioner and the computer installation of air conditioner |
| CN107702270A (en) * | 2017-10-11 | 2018-02-16 | 珠海格力电器股份有限公司 | Control method for electronic expansion valve and device, air-conditioning |
| CN110006138B (en) * | 2019-03-01 | 2022-10-25 | 青岛海尔空调电子有限公司 | Control method and control system for preventing compressor of air conditioner from liquid impact |
| CN111141004B (en) * | 2020-01-07 | 2022-01-25 | 宁波奥克斯电气股份有限公司 | Control method and device of air conditioner and air conditioner |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4382370A (en) * | 1980-10-31 | 1983-05-10 | Hitachi, Ltd. | Refrigerating system using scroll type compressor |
| CN1510356A (en) * | 2002-12-20 | 2004-07-07 | Lg电子株式会社 | Air-conditioner and method for running it in cooling mode |
| CN1993552A (en) * | 2004-08-06 | 2007-07-04 | Lg电子株式会社 | Capacity variable type rotary compressor and driving method thereof |
| CN101995110A (en) * | 2010-10-29 | 2011-03-30 | 广东美的电器股份有限公司 | Double-cylinder variable-capacity compressor air conditioning system and control method thereof |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007183020A (en) * | 2006-01-05 | 2007-07-19 | Matsushita Electric Ind Co Ltd | Capacity variable air conditioner |
| JP4815286B2 (en) * | 2006-07-10 | 2011-11-16 | 東芝キヤリア株式会社 | Two-way refrigeration cycle equipment |
-
2015
- 2015-05-15 CN CN201510250998.5A patent/CN104848489B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4382370A (en) * | 1980-10-31 | 1983-05-10 | Hitachi, Ltd. | Refrigerating system using scroll type compressor |
| CN1510356A (en) * | 2002-12-20 | 2004-07-07 | Lg电子株式会社 | Air-conditioner and method for running it in cooling mode |
| CN1993552A (en) * | 2004-08-06 | 2007-07-04 | Lg电子株式会社 | Capacity variable type rotary compressor and driving method thereof |
| CN101995110A (en) * | 2010-10-29 | 2011-03-30 | 广东美的电器股份有限公司 | Double-cylinder variable-capacity compressor air conditioning system and control method thereof |
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