CN106288236A - Air-conditioner compress control method and air-conditioner - Google Patents
Air-conditioner compress control method and air-conditioner Download PDFInfo
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- CN106288236A CN106288236A CN201610879551.9A CN201610879551A CN106288236A CN 106288236 A CN106288236 A CN 106288236A CN 201610879551 A CN201610879551 A CN 201610879551A CN 106288236 A CN106288236 A CN 106288236A
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- conditioner
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- 238000000034 method Methods 0.000 title claims abstract description 38
- 239000002826 coolant Substances 0.000 claims abstract description 31
- 238000001514 detection method Methods 0.000 claims abstract description 19
- 239000003507 refrigerant Substances 0.000 claims description 49
- 206010020852 Hypertonia Diseases 0.000 claims description 27
- 230000001186 cumulative effect Effects 0.000 claims description 11
- 230000005611 electricity Effects 0.000 claims description 9
- 230000008859 change Effects 0.000 claims description 7
- 230000008030 elimination Effects 0.000 claims description 2
- 238000003379 elimination reaction Methods 0.000 claims description 2
- 230000001681 protective effect Effects 0.000 description 34
- 230000001276 controlling effect Effects 0.000 description 13
- 238000004378 air conditioning Methods 0.000 description 5
- 238000005057 refrigeration Methods 0.000 description 5
- 230000033228 biological regulation Effects 0.000 description 4
- 230000036772 blood pressure Effects 0.000 description 4
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 238000001816 cooling Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000001012 protector Effects 0.000 description 3
- 230000000630 rising effect Effects 0.000 description 3
- 239000006200 vaporizer Substances 0.000 description 3
- 230000015556 catabolic process Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000032258 transport Effects 0.000 description 2
- 230000004308 accommodation Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
- F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
- F24F11/77—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity by controlling the speed of ventilators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Abstract
The open a kind of air-conditioner compress control method of the present invention and air-conditioner, wherein, air-conditioner compress control method comprises the following steps: the current flow of detection air-conditioner dash；Size according to described current flow controls each parts of described air-conditioner and runs, to maintain the pressure balance of described air-conditioner coolant closed circuit.Technical solution of the present invention proposes a kind of scope of application wider array of air-conditioner compress control method.
Description
Technical field
The present invention relates to air-conditioning technical field, particularly to a kind of air-conditioner compress control method and air-conditioner.
Background technology
Air-conditioner is mainly used in regulating indoor temperature, is one of the most the most frequently used household electrical appliance.Operation at air-conditioner
In the running of process, particularly refrigeration mode, when temperature is higher, the pressure in refrigerant circulation circuit is the highest, phase
Answering, the electric current of cooler compressor and the temperature of Inside coil are the highest.In order to protect compressor, in meeting compressor
During the operation condition of portion's protector, protector will be switched off.Meanwhile, in order to avoid compressor protector lost efficacy, air-conditioner also sets
It is equipped with high voltage protective switch and low-voltage protective switch.When refrigerant circulation circuit hypertonia or too low time, high voltage protective switch
Or low-voltage protective switch disconnects automatically, compressor power-off is shut down, in order to avoid damaging under too high or too low pressure.Current one
In air-conditioner compress control method, by Compressor Discharge Pressure and the outdoor temperature of detection air-conditioner；When compressor air-discharging pressure
When power is less than setting pressure, or when outdoor temperature is less than design temperature, on closedown air-conditioner outdoor unit in multiple outdoor heat exchangers
Any one；Detection current compressor pressure at expulsion and the temperature of air-conditioner indoor evaporator；According to current compressor aerofluxus
Pressure and the temperature of indoor evaporator, the back pressure of regulation compressor, to maintain the pressure balance in refrigerant circulation circuit.But
It is that the signal link of high voltage protective switch and low-voltage protective switch must be accessed indoor by this method, and current a lot of rooms
Son does not preset unnecessary line for access when building, and causes wiring difficulty, above-mentioned air-conditioner compress control method suitable
Extremely limited by scope.
Summary of the invention
The main object of the present invention is to propose a kind of air-conditioner compress control method and air-conditioner, it is intended to solve above-mentioned wiring
The problem of difficulty, proposes a kind of scope of application wider array of air-conditioner compress control method.
For achieving the above object, the air-conditioner compress control method that the present invention proposes, comprise the following steps:
The current flow of detection air-conditioner dash；
Size according to described current flow controls each parts of described air-conditioner and runs, to maintain described air-conditioner coolant
The pressure balance of closed circuit.
Preferably, each parts operation of described air-conditioner is controlled according to the size of described current flow, to maintain described sky
Adjust the pressure balanced step of device refrigerant circulation circuit, including:
Relatively described current flow and shutdown electric current and early warning electric current；
When described current flow is more than described shutdown electric current and is less than described early warning electric current, it is judged that described current flow
Variation tendency；
According to the variation tendency of described current flow, control room inner blower rotating speed, to maintain described air-conditioner coolant to circulate
The pressure balance in loop.
Preferably, according to the variation tendency of described current flow, the step of control room inner blower rotating speed, including:
When described current flow is on the rise, control the deceleration operating of described indoor fan；
When described current flow is without ascendant trend, it is judged that whether the rotating speed of described indoor fan is less than setting speed: if
It is then to control described indoor fan accelerated service；Operate if it is not, then control described indoor fan by described setting speed.
Preferably, after controlling the step of described indoor fan deceleration operating, also include:
Described in real-time judge, current flow is the most on the rise；
When described current flow is on the rise, controls described indoor fan and slow down further operating；
When described current flow is without ascendant trend, accumulative described indoor fan slows down the time operated: when described indoor
Blower fan slow down operating cumulative time reach setting run slowly the time time, control described indoor fan accelerated service.
Preferably, it is judged that the step of the variation tendency of described current flow, including:
Judge whether described current flow is consistently less than described early warning electric current in the first Preset Time；
The most then judge that time detected value of working as of described current flow is more than the secondary of previous detected value in the second Preset Time
Whether number is more than set point number: the most then judge that described current flow is on the rise；If it is not, then judge described current flow
Without ascendant trend.
Preferably, relatively after the step of described current flow and shutdown electric current and early warning electric current, also include:
When described current flow is not less than described early warning electric current, it is judged that in the 3rd Preset Time, whether described current flow
All the time not less than described early warning electric current:
The most then control described indoor fan and be decelerated to minimum speed operating；In judging the 4th Preset Time described currently
Electric current is the most all the time not less than described early warning electric current: the most then controls the compressor power-off of described air-conditioner and controls described sky
Adjust the display device prompting hypertonia of device.
Preferably, relatively after the step of described current flow and shutdown electric current and early warning electric current, also include:
When described current flow is not more than described shutdown electric current, detect return air temperature and the inner disc temperature of described air-conditioner
Degree；
Judge that whether the described return air temperature difference with described inner disc temperature is more than setting the temperature difference:
If so, control described display device prompting hypertonia, and accumulative described current flow is not more than described shutdown electricity
The time of stream, and when the described cumulative time reaches five Preset Times, control described compressor operating and control described display
Device eliminates prompting；
If it is not, then control described display device prompting hypotony.
Present invention further propose that a kind of air-conditioner, including:
Current detection module, for detecting the current flow of air-conditioner dash；
Control module, each parts controlling described air-conditioner for the size according to described current flow run, to maintain
The pressure balance of described air-conditioner coolant closed circuit.
Preferably, described control module includes:
Electric current comparing unit, for relatively described current flow and shutdown electric current and early warning electric current；
Electric current judging unit, is used for when described current flow is more than described shutdown electric current and is less than described early warning electric current,
Judge the variation tendency of described current flow；
Control unit, for the variation tendency according to described current flow, control room inner blower rotating speed, to maintain described sky
Adjust the pressure balance of device refrigerant circulation circuit.
Preferably, described control unit, for when described current flow is on the rise, controls described indoor fan and subtracts
Speed operating；
Described control module includes rotating speed judging unit, and described rotating speed judging unit is used at described current flow without rising
During trend, it is judged that whether the rotating speed of described indoor fan is less than setting speed；
Described control unit, for when the rotating speed of described indoor fan is less than described setting speed, controls described indoor wind
Machine accelerated service；When the rotating speed of described indoor fan is not less than described setting speed, controls described indoor fan and set by described
Determine rotation speed operation.
Preferably, described electric current judging unit for described indoor fan slow down operating after, described in real-time judge when
Front electric current is the most on the rise；
Described control unit, for when described current flow is on the rise, controls described indoor fan and slows down further
Operating；
Described control module includes time cumulation unit, and described time cumulation unit is used at described current flow without rising
During trend, accumulative described indoor fan slows down the time operated:
Described control unit is for running slowly the time when the cumulative time of described indoor fan deceleration operating reaches setting
Time, control described indoor fan accelerated service.
Preferably, described electric current judging unit is for judging that described current flow is the least in the first Preset Time
In described early warning electric current；
Described electric current judging unit, when described current flow in the first Preset Time is less than described early warning electric current, is sentenced
Break in the second Preset Time described current flow when time detected value more than the number of times of previous detected value whether more than setting time
Number.
Preferably, described electric current judging unit is for when described current flow is not less than described early warning electric current, it is judged that the
In three Preset Times, described current flow is the most all the time not less than described early warning electric current:
Described control unit is used for when in the 3rd Preset Time, described current flow is all the time not less than described early warning electric current,
Control described indoor fan and be decelerated to minimum speed operating；
Described electric current judging unit described current flow in judging the 4th Preset Time is not less than described the most all the time
Early warning electric current:
Described control unit is used for when in the 4th Preset Time, described current flow is all the time not less than described early warning electric current,
The compressor power-off controlling described air-conditioner and the display device controlling described air-conditioner prompting hypertonia.
Preferably, described control module includes:
Temperature detecting unit, described temperature detecting unit is used for when described current flow is not more than described shutdown electric current,
Detect return air temperature and the inner disc temperature of described air-conditioner；
Temperature judging unit, for judging that whether the described return air temperature difference with described inner disc temperature is more than setting temperature
Difference；
Described control unit is for when the difference of described return air temperature with described inner disc temperature is more than and sets the temperature difference, controlling
Described display device prompting hypertonia,
Described time cumulation unit is not more than the time of described shutdown electric current for adding up described current flow；
Described control unit for described current flow be not more than time of described shutdown electric current reach the 5th preset time
Between time, control described compressor operating and control described display device eliminate prompting；
Described control unit is for when the difference of described return air temperature with described inner disc temperature is not more than and sets the temperature difference, controlling
Make described display device prompting hypotony.
In technical solution of the present invention, utilize the pressure of air-conditioner coolant closed circuit and the current flow positive correlation of panel
Relation, obtained the pressure condition of refrigerant circulation circuit by the current flow of detection air-conditioner dash, and then according to currently
The size of electric current controls each parts of air-conditioner and runs, to maintain the pressure balance of air-conditioner coolant closed circuit.Skill of the present invention
Art scheme needs the parameter of detection all in indoor set side, therefore need not be by high voltage protective switch and the room such as low-voltage protective switch
The holding wire of outer machine side accesses indoor to obtain pressure condition, it is to avoid the deficiency of wiring is reserved to air-conditioner pressure control in house
The restriction of method processed, it is proposed that a kind of air-conditioner compress control method applied widely.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
In having technology to describe, the required accompanying drawing used is briefly described, it should be apparent that, the accompanying drawing in describing below is only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to
Other accompanying drawing is obtained according to the structure shown in these accompanying drawings.
Fig. 1 is the schematic flow sheet of air-conditioner compress control method one embodiment of the present invention；
Fig. 2 is the structural representation of the air-conditioner of Fig. 1；
Fig. 3 is the electrical block diagram of the air-conditioner of Fig. 1；
Fig. 4 be in air-conditioner compress control method one specific embodiment of the present invention at current flow less than early warning electric current and big
Schematic flow sheet in the case of shutting down electric current；
Fig. 5 is the schematic flow sheet of step S220 of Fig. 4；
Fig. 6 is step S230 of Fig. 4 schematic flow sheet in the case of current flow is on the rise；
Fig. 7 be step S230 of Fig. 4 at current flow without the schematic flow sheet in the case of ascendant trend；
Fig. 8 is to be not less than early warning electric current feelings at current flow in air-conditioner compress control method one specific embodiment of the present invention
Schematic flow sheet under condition；
Fig. 9 is to be not more than at current flow in air-conditioner compress control method one specific embodiment of the present invention to shut down electric current feelings
Schematic flow sheet under condition；
Figure 10 is the module diagram of air-conditioner of the present invention；
Figure 11 is the cell schematics of the control module of Figure 10.
The realization of the object of the invention, functional characteristics and advantage will in conjunction with the embodiments, are described further referring to the drawings.
Drawing reference numeral illustrates:
| Label | Title | Label | Title |
| 100 | Panel | 200 | Condenser |
| 300 | Outdoor fan | 400 | Vaporizer |
| 500 | Indoor fan | 600 | Compressor |
| 700 | High voltage protective switchs | 800 | Low-voltage protective switch |
| 900 | Cross valve |
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Describe, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments wholely.Base
Embodiment in the present invention, those of ordinary skill in the art obtained under not making creative work premise all its
His embodiment, broadly falls into the scope of protection of the invention.
If it is to be appreciated that the embodiment of the present invention relates to directivity instruction (such as up, down, left, right, before and after ...),
Then directionality instruction be only used for explaining under a certain particular pose (as shown in drawings) relative position relation between each parts,
Motion conditions etc., if this particular pose changes, then directionality instruction changes the most therewith.
If it addition, the embodiment of the present invention relates to the description of " first ", " second " etc., then should " first ", " second " etc.
Description be only used for describing purpose, and it is not intended that instruction or imply its relative importance or implicit indicate indicated skill
The quantity of art feature.Thus, define " first ", the feature of " second " can express or implicitly include at least one this spy
Levy.It addition, the technical scheme between each embodiment can be combined with each other, but must be with those of ordinary skill in the art's energy
Enough be embodied as basis, when the combination of technical scheme occur conflicting maybe cannot realize time will be understood that the knot of this technical scheme
Close and do not exist, the most not within the protection domain of application claims.
The present invention proposes a kind of air-conditioner compress control method.In the running of air-conditioner, particularly air-conditioner exists
During running in a chiller mode, when temperature is higher, the pressure of air-conditioner coolant closed circuit is higher, accordingly, and air-conditioning
The electric current of device panel is higher.In the present invention, utilize the electric current of air-conditioner dash and the pressure of air-conditioner coolant closed circuit
Positively related relation, by detecting the electric current of air-conditioner dash, obtains the pressure condition of air-conditioner coolant closed circuit, accordingly
The each parts controlling air-conditioner run, thus maintain the pressure balance of air-conditioner coolant closed circuit, eliminate high voltage protective
Switch and low-voltage protective switch receive the line of indoor, improve the convenience of air-conditioner compress control method.
In one embodiment of the invention, as shown in Figure 1 to Figure 3, this air-conditioner compress control method comprises the following steps:
Step S100: the current flow Ic of detection air-conditioner dash 100；
The current flow Ic of air-conditioner dash 100 and the current pressure positive correlation of air-conditioner coolant closed circuit, but,
Comparing pressure detecting, current detecting has more preferable convenience and accuracy, therefore carries out the current flow Ic of panel 100
Detection, to obtain the pressure condition of air-conditioner.
Step S200: each parts controlling air-conditioner according to the size of current flow Ic run, to maintain air-conditioner coolant
The pressure balance of closed circuit.
According to the size of current flow Ic, would know that the situation of the current pressure of refrigerant circulation circuit, and then control air-conditioning
Each parts of device run, to maintain the pressure balance of air-conditioner coolant closed circuit.Air-conditioner includes single-cooling air-conditioner and changes in temperature
Air conditioner for both device, is the structural representation of a kind of dual-purpose air conditioner for changing in temperature shown in Fig. 2, but it should be noted that in the present invention
Air-conditioner compress control method be also applied for single-cooling air-conditioner.Under normal circumstances, when air-conditioner is operated in refrigeration mode, easily
The situation of hypertonia in refrigerant circulation circuit occurs.In following example, by mainly for refrigeration mode in the present invention
Air-conditioner compress control method is illustrated, and certainly, this air-conditioner compress control method can also be used for remaining cold under heating mode
Pressure balance in matchmaker's closed circuit.As in figure 2 it is shown, the refrigerant circulation circuit of air-conditioner includes condenser 200, outdoor fan
300, vaporizer 400, indoor fan 500, compressor 600, high voltage protective switch 700 and low-voltage protective switch 800 are formed
Loop, in dual-purpose air conditioner for changing in temperature, also includes cross valve 900, to realize the switching of refrigeration and heating mode.Concrete, control
Each parts of air-conditioner processed run operation and shutoff, the display device including the rotating speed of control room inner blower 500, compressor 600
The promptings of (not shown) etc. operate.As it is shown on figure 3, compressor 600, high voltage protective switch 700, low-voltage protective switch 800
Electrically connect with panel 100, an arbitrary disconnection in high voltage protective switch 700 and low-voltage protective switch 800, then compressor 600
Power-off.Therefore, the operation of compressor 600 can be manually performed by user with turning off under the prompting of display device, it is possible to by height
Pressure protection switch 700 or low-voltage protective switch 800 perform automatically, and when the hypertonia of refrigerant circulation circuit, high voltage protective is opened
Closing 700 automatically to disconnect, when the hypotony of refrigerant circulation circuit, low-voltage protective switch 800 disconnects automatically, and then makes compression
Machine 600 is out of service, to maintain the pressure balance in refrigerant circulation circuit, protects compressor 600.
In technical solution of the present invention, the current flow Ic of detection air-conditioner dash 100, big according to current flow Ic
Little, each parts controlling air-conditioner run, to maintain the pressure balance of air-conditioner coolant closed circuit.Due to the technology of the present invention side
The parameter that must detect in case is positioned at indoor set side, therefore need not be by rooms such as high voltage protective switch 700 and low-voltage protective switch 800
The signal link of outer machine side accesses indoor, it is to avoid the not enough restriction to air-conditioner compress control method of wiring is reserved in house,
Propose a kind of air-conditioner compress control method applied widely.
In a specific embodiment of the present invention, as shown in Figure 4, step S200 controls sky according to the size of current flow Ic
The each parts adjusting device run, to maintain the pressure balance of air-conditioner coolant closed circuit to include:
Step S210: compare current flow Ic and shut down electric current Is and early warning electric current Ia；
Wherein, shut down electric current Is and refer to the electric current of panel 100, usually 1 Amps when compressor quits work；Early warning
Electric current Ia refers to the electric current of panel 100 when the pressure in refrigerant circulation circuit is higher than the pressure under air-conditioner normal operating condition.
Under the normal operating condition of air-conditioner, its rated current Ir is usually 6 Amps, and early warning electric current Ia is more than rated current
Ir, of course, early warning electric current Ia is also greater than shutting down electric current Is.
At current flow Ic more than when shutting down electric current Is and be less than early warning electric current Ia, perform step S220: judge current electricity
The variation tendency of stream Ic；
As Is < Ic, < during Ia, air-conditioner is in normal operating condition, it is judged that the variation tendency of current flow Ic, in order to follow-up
The execution of step.
Step S230: according to the variation tendency of current flow Ic, the rotating speed of control room inner blower 500, to maintain air-conditioner
The pressure balance of refrigerant circulation circuit.
In air-conditioner running, current flow Ic is constantly in change, and i.e. the pressure in refrigerant circulation circuit is always
Being in change, according to the feedback result of current flow Ic, by the rotating speed of control room inner blower 500, regulation refrigerant circulation returns
Pressure in road, to maintain the balance of pressure, makes air-conditioner remain in normal operating conditions.
Concrete, as it is shown in figure 5, the variation tendency that step S220 judges current flow Ic includes:
Step S221: judge whether current flow Ic is consistently less than early warning electric current Ia in the first Preset Time；
The fluctuation existed due to current flow Ic and saltus step and the situation such as time delay that may be present during measuring, only
Current flow Ic according to a certain moment is less than early warning electric current Ia, it is difficult to confirm that the pressure in refrigerant circulation circuit is maintained at normally
In the range of.Therefore, early warning electric current whether it is consistently less than by the current flow Ic in detection a period of time, the i.e. first Preset Time
Ia is to further confirm that.Wherein, the first Preset Time specifically may be configured as 10 minutes
The most then perform step S222: judge that time detected value of working as of current flow Ic is more than front in the second Preset Time
Whether the number of times of secondary detected value is more than set point number: the most then judge that current flow Ic is on the rise；If it is not, then judge to work as
Front electric current Ic is without ascendant trend.
If current flow Ic is consistently less than early warning electric current Ia in the first Preset Time, then can confirm that under current state, coolant follows
The pressure of loop back path is within normal range, now, maintains it to balance according to the variation tendency of pressure.By determining whether
In the second Preset Time current flow Ic when time detected value more than the number of times of previous detected value whether more than set point number, obtain
The variation tendency situation of pressure power.Wherein, the second Preset Time can be sampled one section in the first Preset Time, such as, when
When one Preset Time is specifically configured to 10 minutes, the second Preset Time is specifically retrieved from 10 minutes interior certain 1～2 minute.?
In two Preset Times, if time detected value of working as of current flow Ic is all higher than previous detected value, then current flow Ic is in rising shape
State.But, in practical situation, it is contemplated that the fluctuation of current flow Ic and saltus step, even if there is ascendant trend at current flow Ic
In the case of, it is also possible to finite number of time occur works as time detected value situation less than previous detected value.Therefore, with set point number it is
Criterion, in the second Preset Time current flow Ic when time detected value more than the number of times of previous detected value more than setting time
During number, it is determined that current flow Ic is on the rise, otherwise, it is determined that current flow Ic is without ascendant trend.
Concrete, step S230 includes according to the variation tendency of current flow Ic, control room inner blower 500 rotating speed:
As shown in Figure 6, when current flow Ic is on the rise, perform step S231: control room inner blower 50 slows down and transports
Turn；
In the case of current flow Ic is on the rise, shows that the pressure in refrigerant circulation circuit is on the rise, pass through
Control room inner blower 500 slows down and operates, and reduces the pressure in refrigerant circulation circuit, it is to avoid pressure persistently rises to beyond normal model
Enclose.
As it is shown in fig. 7, when current flow Ic is without ascendant trend, perform step S232: judge the rotating speed of indoor fan 500
Whether less than setting speed: the most then execution step S232a: control room inner blower 500 accelerated service；If it is not, then perform step
S232b: control room inner blower 500 operates by setting speed.
In the case of current flow Ic is without ascendant trend, show the pressure in refrigerant circulation circuit without ascendant trend, now,
The rotating speed of indoor fan 500 need not be reduced.By judging that the rotating speed of indoor fan 500 whether less than setting speed, is the most then controlled
Indoor fan 500 processed accelerated service, to improve the work efficiency of air-conditioner；Otherwise, indoor fan 500 is maintained to transport by setting speed
Turn, to keep the balance of indoor temperature, avoid the rotating speed of indoor fan 500 to cause refrigerant circulation to return more than after setting speed simultaneously
Pressure in road rises.
Further, as shown in Figure 6, step S231 control room inner blower 500 slows down after operating, also includes:
Step S233: current flow Ic is the most on the rise for real-time judge；
By the variation tendency of current flow Ic is detected in real time, to realize more effective pressure based on feedback result control
System.
When current flow Ic is on the rise, perform step S233a: control room inner blower 500 slows down operating further；
If indoor fan 500 slows down after operating, current flow Ic still keeps ascendant trend, shows in refrigerant circulation circuit
Pressure still there is ascendant trend, persistently rise the balance of breakdown pressure in order to avoid pressure, control room inner blower 500 enters one
Step slows down operating with blood pressure lowering.
When current flow Ic is without ascendant trend, perform step S233b: accumulative indoor fan 500 slows down the time operated；
Perform step S234: judge whether the cumulative time reaches setting and run slowly the time: when adding up of indoor fan 500 deceleration operating
Time reach setting run slowly the time time, perform step S234a: control room inner blower 500 accelerated service.
If current flow Ic is without ascendant trend, show by making indoor fan 500 operating of slowing down prevent coolant and follow
The ascendant trend of the pressure in loop back path, slowing down runs to setting and runs slowly after the time, and the pressure in refrigerant circulation circuit is
Decline, in order to improve the operational efficiency of air-conditioner regulation indoor temperature, control room inner blower 500 accelerated service.Wherein, setting subtracts
The speed operation time can be specifically configured to 20 minutes.
In sum, at current flow Ic more than when shutting down electric current Is and be less than early warning electric current Ia, air-conditioner coolant circulates
The pressure in loop, within normal range, can maintain indoor fan 500 to operate by setting speed or near setting speed.In order to more
Control pressure well, monitor the variation tendency of current flow Ic in real time, adjust the rotating speed of indoor fan 500 accordingly, in order to avoid pressure
Beyond normal range.Wherein, control room inner blower 500 deceleration operating or accelerated service can be by the way of being reduced or increased by gear
Realize, owing to range of accommodation each time is limited, be advantageously implemented precisely and pressure feedback controls flexibly, it is to avoid single regulates
Scope is excessive causes the operating of air-conditioner unbalance.
In this specific embodiment, when current flow Ic is not less than early warning electric current Ia, perform step S240: judge that the 3rd is pre-
If current flow Ic is the most all the time not less than early warning electric current Ia in the time:
As Ic >=Ia, it is contemplated that the fluctuation of electric current and saltus step situation, must be to the whether mistake of the pressure in refrigerant circulation circuit
Height further confirms that, by current flow Ic in judging a period of time, the i.e. the 3rd Preset Time the most all the time not less than early warning electricity
Stream Ia realizes.Concrete, in order to avoid pressure the most too high in the case of, further confirm that spent overlong time is to compression
Machine 600 causes damage, and the 3rd Preset Time may be configured as 1～2 minute, relatively short.
The most then perform step S241: control room inner blower 500 is decelerated to minimum speed operating；
When hypertonia in refrigerant circulation circuit, in order to realize rapid blood pressure lowering, reduce the infringement to compressor 600,
Control room inner blower 500 is directly decelerated to minimum speed and runs.
After step S241, continue executing with step S242: in judging the 4th Preset Time, current flow Ic is the most all the time
Not less than early warning electric current Ia:
Wherein, the 4th Preset Time can specifically be set to 1～2 minute equal with the 3rd Preset Time, cold quickly to confirm
Pressure condition in matchmaker's closed circuit, it is to avoid acknowledging time is long causes compressor 600 to damage.
The most then perform step S242a: control compressor 600 power-off of air-conditioner and control the display device of air-conditioner
Prompting hypertonia.
When the current flow Ic of panel 100 is still not less than early warning electric current Ia, show that indoor fan 500 is decelerated to
The slow-speed of revolution is still not enough to reduce pressure in normal range, now, disconnects the power supply of compressor 600, to protect compressor 600,
Point out user's hypertonia by display device simultaneously.Concrete, the power supply disconnecting compressor 600 can be by user according to display dress
The information put manually performs, it is possible to is disconnected in a high voltage state by high voltage protective switch 700 and then makes compressor 600 break
Electricity, performs the most automatically.Additionally, the information of display device is also convenient for user understands the reason that air-conditioner is shut down, to locate
Reason.
In sum, when current flow Ic is not less than early warning electric current Ia, the pressure in air-conditioner coolant closed circuit is confirmed
After power is too high, the most more efficient measure is taked to implement decompression, in order to avoid damaging compressor 600.Concrete, control room endogenous wind
Machine 500 is decelerated to minimum speed operating, if this measure still cannot reduce pressure to normal range, then to compressor 600 power-off,
To protect compressor.
In this specific embodiment, when current flow Ic is not more than and shuts down electric current Is, perform step S250: detect air-conditioner
Return air temperature and inner disc temperature；
As Ic≤Is, compressor 600 is in stopped status.Compression all may be caused due to hypertonia and hypotony
Machine 600 power-off is shut down, and judges concrete power-off reason by detection return air temperature with inner disc temperature, in order to perform subsequent step.
Step S260: judge that whether the return air temperature difference with inner disc temperature is more than setting the temperature difference:
If so, perform step S261: control display device prompting hypertonia, and accumulative current flow Ic is not more than shutdown
The time of electric current Ia；
Step S262: judge whether the cumulative time reaches the 5th Preset Time；
Within the cumulative time, compressor disconnects, and the pressure in refrigerant circulation circuit declines.Concrete, the 5th Preset Time
May be configured as 20 minutes.
When the cumulative time reaches five Preset Times, perform step S262a: control compressor 600 and run and control to show
Showing device eliminates prompting；
When the difference of return air temperature with inner disc temperature is more than and sets the temperature difference, shutdown is caused by hypertonia, display
Device prompting hypertonia, in order to user processes according to concrete shutdown reason.Additionally, air-conditioner also can recover fortune automatically
OK, when downtime has reached five Preset Times, the pressure in refrigerant circulation circuit should have dropped to a certain degree, now
Control compressor 600 again to operate, thus indoor temperature is regulated and controled.
If it is not, perform step S263: control display device prompting hypotony.
When the difference of return air temperature with inner disc temperature is not more than and sets the temperature difference, show that the refrigerating capacity of air-conditioner declines,
Shutdown is that the low pressure caused owing to lacking coolant is caused, and now, display device prompting hypotony, to indicate user to add
Coolant, makes air-conditioner recover operating.
In sum, when current flow Ic is not more than and shuts down electric current Is, compressor 600 is in off-position.According to returning
Air temperature and the difference of inner disc temperature, it may be determined that concrete power-off reason, display device provides corresponding information, in order to use
Family performs corresponding operating, makes air-conditioner resume operation.Particularly, when compressor 600 is shut down because of hypertonia, pressure declines
After to normal range, can again operate according to the 5th Preset Time automatic control compressor 600, thus improve air-conditioner pressure
Force control method intelligent.
The present invention also proposes a kind of air-conditioner, to realize said method, as shown in Figure 10, and including:
Current detection module 110, for detecting the current flow of air-conditioner dash 100；
The current flow Ic of air-conditioner dash 100 and the current pressure positive correlation of air-conditioner coolant closed circuit, and electric
Stream detection module 110 has more preferable convenience and accuracy, by detecting the current flow Ic of panel 100, obtains
Take the pressure condition of air-conditioner.
Control module 120, each parts controlling air-conditioner for the size according to current flow run, to maintain air-conditioner
The pressure balance of refrigerant circulation circuit.
According to the size of current flow Ic, would know that the situation of the current pressure of refrigerant circulation circuit, and then control air-conditioning
Each parts of device run, to maintain the pressure balance of air-conditioner coolant closed circuit.Air-conditioner includes single-cooling air-conditioner and changes in temperature
Air conditioner for both device, is the structural representation of a kind of dual-purpose air conditioner for changing in temperature shown in Fig. 2, but it should be noted that in the present invention
Air-conditioner can also be single-cooling air-conditioner.As in figure 2 it is shown, the refrigerant circulation circuit of air-conditioner includes condenser 200, outdoor wind
Machine 300, vaporizer 400, indoor fan 500, compressor 600, high voltage protective switch 700 and low-voltage protective switch 800 are formed
Loop, in dual-purpose air conditioner for changing in temperature, also include cross valve 900, to realize refrigeration and the switching of heating mode.Concrete,
Control module 120 control air-conditioner each parts run include the rotating speed of control room inner blower 500, compressor 600 operation with
Turn off, the prompting etc. of display device (not shown) operates.As it is shown on figure 3, compressor 600, high voltage protective switch 700, low
Pressure protection switch 800 and panel 100 electrically connect, and in high voltage protective switch 700 and low-voltage protective switch 800, arbitrary one breaks
Open, then compressor 600 power-off.Therefore, the operation of compressor 600 manually can be held by user with turning off under the prompting of display device
OK, it is possible to automatically performed, when the hypertonia of refrigerant circulation circuit by high voltage protective switch 700 or low-voltage protective switch 800
Time, high voltage protective switch 700 disconnects automatically, and when the hypotony of refrigerant circulation circuit, low-voltage protective switch 800 is from dynamic circuit breaker
Open, and then make compressor 600 out of service, to maintain the pressure balance in refrigerant circulation circuit, protect compressor 600.Its
In, current detection module 110 and control module 120 are all located on panel 100, concrete, and current detection module 110 can be electricity
Current detection circuits etc., control module 120 can be micro-control unit MCU etc..
As shown in figure 11, control module 120 includes:
Electric current comparing unit 121, is used for comparing current flow Ic and shutting down electric current Is and early warning electric current Ia；
Wherein, shut down electric current Is and refer to the electric current of panel 100, usually 1 Amps when compressor quits work；Early warning
Electric current Ia refers to the electric current of panel 100 when the pressure in refrigerant circulation circuit is higher than the pressure under air-conditioner normal operating condition.
Under the normal operating condition of air-conditioner, its rated current Ir is usually 6 Amps, and early warning electric current Ia is more than rated current
Ir, of course, early warning electric current Ia is also greater than shutting down electric current Is.
Electric current judging unit 122, for when current flow Ic is more than and shuts down electric current Is and be less than early warning electric current Ia, it is judged that
The variation tendency of current flow Ic；
Control unit 123, for the variation tendency according to current flow Ic, control room inner blower 500 rotating speed, to remain empty
Adjust the pressure balance of device refrigerant circulation circuit.
In air-conditioner running, current flow Ic is constantly in change, and i.e. the pressure in refrigerant circulation circuit is always
It is in change, according to the feedback result of current flow Ic, the rotating speed of control unit 123 control room inner blower 500, regulates coolant
Pressure in closed circuit, to maintain the balance of pressure, makes air-conditioner remain in normal operating conditions.
Concrete, electric current judging unit 122 is for judging whether current flow Ic is consistently less than in the first Preset Time
Early warning electric current Ia；
The fluctuation existed due to current flow Ic and saltus step and the situation such as time delay that may be present during measuring, only
Current flow Ic according to a certain moment is less than early warning electric current Ia, it is difficult to confirm that the pressure in refrigerant circulation circuit is maintained at normally
In the range of.Therefore, the current flow Ic in electric current judging unit 122 detects a period of time, the i.e. first Preset Time is the most all the time
Less than early warning electric current Ia to further confirm that.Wherein, the first Preset Time specifically may be configured as 10 minutes
If so, electric current judging unit 122 for judge in the second Preset Time current flow Ic when secondary detected value big
Whether the number of times in previous detected value is more than set point number.
If current flow Ic is consistently less than early warning electric current Ia in the first Preset Time, then can confirm that under current state, coolant follows
The pressure of loop back path is within normal range, now, maintains it to balance according to the variation tendency of pressure.Electric current judging unit
122 determine whether in the second Preset Time current flow Ic when time detected value the biggest more than the number of times of previous detected value
In set point number, obtain the variation tendency situation of pressure.Wherein, the second Preset Time can be sampled in the first Preset Time
Section, such as, when the first Preset Time is specifically configured to 10 minutes, the second Preset Time is specifically retrieved from 10 minutes interior certain 1
～2 minutes.In the second Preset Time, if time detected value of working as of current flow Ic is all higher than previous detected value, then current flow
Ic is in propradation.But, in practical situation, it is contemplated that the fluctuation of current flow Ic and saltus step, even if at current flow Ic
In the case of there is ascendant trend, it is also possible to finite number of time occur works as time detected value situation less than previous detected value.Therefore,
Electric current judging unit 122 with set point number as criterion, in the second Preset Time current flow Ic when time detected value big
When the number of times of previous detected value is more than set point number, it is determined that current flow Ic is on the rise, otherwise, it is determined that current flow Ic
Without ascendant trend.
When current flow Ic is on the rise, control unit 123 is slowed down for control room inner blower 500 and is operated；
In the case of current flow Ic is on the rise, show that the pressure in refrigerant circulation circuit is on the rise, control
Unit 123 control room inner blower 500 slows down and operates, and reduces the pressure in refrigerant circulation circuit, it is to avoid pressure persistently rises to surpass
Go out normal range.
Control module 120 includes rotating speed judging unit 124, for when current flow Ic is without ascendant trend, it is judged that indoor
Whether the rotating speed of blower fan 500 is less than setting speed；
Control unit 123 is for when the rotating speed of indoor fan 500 is less than setting speed, and control room inner blower 500 accelerates
Operating；When the rotating speed of indoor fan 500 is not less than setting speed, control room inner blower 500 operates by setting speed.
In the case of current flow Ic is without ascendant trend, show the pressure in refrigerant circulation circuit without ascendant trend, now,
The rotating speed of indoor fan 500 need not be reduced.Rotating speed judging unit 124 judges whether the rotating speed of indoor fan 500 turns less than setting
Speed, the if so, accelerated service of control unit 123 control room inner blower 500, to improve the work efficiency of air-conditioner；Otherwise, list is controlled
Unit 123 maintains indoor fan 500 to operate by setting speed, to keep the balance of indoor temperature, avoids indoor fan 500 simultaneously
Rotating speed causes the pressure in refrigerant circulation circuit to rise more than after setting speed.
Further, electric current judging unit 122 is after slowing down operating at indoor fan 500, and real-time judge is the most electric
Ic is the most on the rise for stream；
By the variation tendency of current flow Ic is detected in real time, it is achieved more effective pressure based on feedback result control
System.
Control unit 123 is for when current flow Ic is on the rise, and control room inner blower 500 slows down fortune further
Turn；
If indoor fan 500 slows down after operating, current flow Ic still keeps ascendant trend, shows in refrigerant circulation circuit
Pressure still there is ascendant trend, persistently rise the balance of breakdown pressure in order to avoid pressure, in control unit 123 control room
Blower fan 500 slows down operating further with blood pressure lowering.
Control module 120 includes time cumulation unit 125, for when current flow Ic is without ascendant trend, accumulative indoor
Blower fan 500 slows down the time operated:
Control unit 123 for when indoor fan 500 slow down cumulative time of operating reach setting run slowly the time time,
Control room inner blower 500 accelerated service.
If current flow Ic is without ascendant trend, shows that the deceleration of indoor fan 500 is operated by control unit 123 and controlled
Having prevented the ascendant trend of pressure in refrigerant circulation circuit, slowing down runs to setting and runs slowly after the time, and refrigerant circulation returns
Pressure in road declines, in order to improve the operational efficiency of air-conditioner regulation indoor temperature, control unit 123 control room inner blower
500 accelerated services.Wherein, the setting time of running slowly can be specifically configured to 20 minutes.
Electric current judging unit 122 is for when current flow Ic is not less than early warning electric current Ia, it is judged that in the 3rd Preset Time
Current flow Ic is the most all the time not less than early warning electric current Ia:
As Ic >=Ia, it is contemplated that the fluctuation of electric current and saltus step, must to the pressure in refrigerant circulation circuit the most too high enter
One step confirms, in electric current judging unit 122 judges a period of time, the i.e. the 3rd Preset Time, current flow Ic is not less than the most all the time
Early warning electric current Ia.Concrete, in order to avoid pressure the most too high in the case of, further confirm that spent overlong time is to pressure
Contracting machine 600 causes damage, and the 3rd Preset Time may be configured as 1～2 minute, relatively short.
Control unit 123 is for when in the 3rd Preset Time, current flow Ic is all the time not less than early warning electric current Ia, controlling
Indoor fan 500 is decelerated to minimum speed operating；
When hypertonia in refrigerant circulation circuit, control unit 123 control room inner blower 500 is directly decelerated to minimum
Rotating speed runs, and to realize rapid blood pressure lowering, reduces the infringement to compressor 600.
Electric current judging unit 122 current flow Ic in judging the 4th Preset Time is not less than early warning electric current the most all the time
Ia:
Wherein, the 4th Preset Time can specifically be set to 1～2 minute equal with the 3rd Preset Time, makes electric current judge single
Unit 122 can quickly confirm the pressure condition in refrigerant circulation circuit, it is to avoid acknowledging time is long causes compressor 600 to damage.
When in the 4th Preset Time, current flow Ic is all the time not less than early warning electric current Ia, control unit 123 controls air-conditioning
Compressor 600 power-off of device and the display device prompting hypertonia of control air-conditioner.
When the current flow Ic of panel 100 is still not less than early warning electric current Ia, show that indoor fan 500 is decelerated to
The slow-speed of revolution is still not enough to reduce pressure in normal range, now, disconnects the power supply of compressor 600, to protect compressor 600,
Point out user's hypertonia by display device simultaneously.Concrete, the power supply disconnecting compressor 600 can be by user according to display dress
The information put manually performs, it is possible to is disconnected in a high voltage state by high voltage protective switch 700 and then makes compressor 600 break
Electricity, performs the most automatically.Additionally, the information of display device is also convenient for user understands the reason that air-conditioner is shut down, to locate
Reason.
Control module 120 includes:
Temperature detecting unit 126, for when current flow Ic is not more than and shuts down electric current Ia, detecting the return air temperature of air-conditioner
Degree and inner disc temperature；
As Ic≤Is, compressor 600 is in stopped status.Compression all may be caused due to hypertonia and hypotony
Machine 600 power-off is shut down, and detects return air temperature and inner disc temperature by temperature detecting unit 126, to judge concrete power-off reason,
It is easy to perform subsequent step.
Temperature judging unit 127, for judging that whether the return air temperature difference with inner disc temperature is more than setting the temperature difference；
Control unit 123 is for when the difference of return air temperature with inner disc temperature is more than and sets the temperature difference, controlling display device
Prompting hypertonia,
Time cumulation unit 125 is not more than the time of shutdown electric current Is for adding up current flow Ic；
Control unit 123 is used for when the time that current flow Ic is not more than shutdown electric current Is reaches five Preset Times,
Control compressor 600 run and control display device elimination prompting；
When the difference of return air temperature with inner disc temperature is more than and sets the temperature difference, shutdown is caused by hypertonia, controls
Unit 123 controls display device prompting hypertonia, in order to user processes according to concrete shutdown reason.Additionally, control
Unit 123 also can control air-conditioner and automatically resume operation, and presets when the downtime that time accumulated unit 125 adds up reaches the 5th
During the time, the pressure in refrigerant circulation circuit should have dropped to a certain degree, and now control unit 123 controls compressor 600
Again operate.Wherein, the 5th Preset Time specifically may be configured as 20 minutes.
Control unit 123 is for when the difference of return air temperature with inner disc temperature is not more than and sets the temperature difference, controlling display dress
Put prompting hypotony.
When the difference of return air temperature with inner disc temperature is not more than and sets the temperature difference, show that the refrigerating capacity of air-conditioner declines,
Shutdown is that the low pressure caused owing to lacking coolant is caused, and now, control unit 123 controls display device prompting pressure mistake
Low, to indicate user to add coolant, make air-conditioner recover operating.
The foregoing is only the preferred embodiments of the present invention, not thereby limit the scope of the claims of the present invention, every at this
Under the inventive concept of invention, utilize the equivalent structure transformation that description of the invention and accompanying drawing content are made, or directly/indirectly use
The technical field relevant at other is included in the scope of patent protection of the present invention.
Claims (14)
1. an air-conditioner compress control method, it is characterised in that comprise the following steps:
The current flow of detection air-conditioner dash；
Size according to described current flow controls each parts of described air-conditioner and runs, to maintain described air-conditioner coolant to circulate
The pressure balance in loop.
2. air-conditioner compress control method as claimed in claim 1, it is characterised in that according to the size control of described current flow
The each parts making described air-conditioner run, to maintain the pressure balanced step of described air-conditioner coolant closed circuit, including:
Relatively described current flow and shutdown electric current and early warning electric current；
When described current flow is more than described shutdown electric current and is less than described early warning electric current, it is judged that the change of described current flow
Trend；
According to the variation tendency of described current flow, control room inner blower rotating speed, to maintain described air-conditioner coolant closed circuit
Pressure balance.
3. air-conditioner compress control method as claimed in claim 2, it is characterised in that become according to the change of described current flow
Gesture, the step of control room inner blower rotating speed, including:
When described current flow is on the rise, control the deceleration operating of described indoor fan；
When described current flow is without ascendant trend, it is judged that whether the rotating speed of described indoor fan is less than setting speed: the most then
Control described indoor fan accelerated service；Operate if it is not, then control described indoor fan by described setting speed.
4. air-conditioner compress control method as claimed in claim 3, it is characterised in that control the deceleration operating of described indoor fan
Step after, also include:
Described in real-time judge, current flow is the most on the rise；
When described current flow is on the rise, controls described indoor fan and slow down further operating；
When described current flow is without ascendant trend, accumulative described indoor fan slows down the time operated: when described indoor fan
Slow down operating cumulative time reach setting run slowly the time time, control described indoor fan accelerated service.
5. air-conditioner compress control method as claimed in claim 2, it is characterised in that judge that the change of described current flow becomes
The step of gesture, including:
Judge whether described current flow is consistently less than described early warning electric current in the first Preset Time；
The most then judge that time detected value of working as of described current flow more than the number of times of previous detected value is in the second Preset Time
No more than set point number: the most then to judge that described current flow is on the rise；If it is not, then judge that described current flow is supreme
The trend of liter.
6. air-conditioner compress control method as claimed in claim 2, it is characterised in that relatively described current flow and shutdown electricity
After the step of stream and early warning electric current, also include:
When described current flow is not less than described early warning electric current, it is judged that in the 3rd Preset Time, described current flow is the most all the time
Not less than described early warning electric current:
The most then control described indoor fan and be decelerated to minimum speed operating；Judge described current flow in the 4th Preset Time
The most all the time not less than described early warning electric current: the most then control the compressor power-off of described air-conditioner and control described air-conditioner
Display device prompting hypertonia.
7. air-conditioner compress control method as claimed in claim 2, it is characterised in that relatively described current flow and shutdown electricity
After the step of stream and early warning electric current, also include:
When described current flow is not more than described shutdown electric current, detect return air temperature and the inner disc temperature of described air-conditioner；
Judge that whether the described return air temperature difference with described inner disc temperature is more than setting the temperature difference:
If so, control described display device prompting hypertonia, and accumulative described current flow is not more than described shutdown electric current
Time, and when the described cumulative time reaches five Preset Times, control described compressor operating and control described display device
Eliminate prompting；
If it is not, then control described display device prompting hypotony.
8. an air-conditioner, it is characterised in that including:
Current detection module, for detecting the current flow of air-conditioner dash；
Control module, each parts controlling described air-conditioner for the size according to described current flow run, to remain described
The pressure balance of air-conditioner coolant closed circuit.
9. air-conditioner as claimed in claim 8, it is characterised in that described control module includes:
Electric current comparing unit, for relatively described current flow and shutdown electric current and early warning electric current；
Electric current judging unit, for when described current flow is more than described shutdown electric current and is less than described early warning electric current, it is judged that
The variation tendency of described current flow；
Control unit, for the variation tendency according to described current flow, control room inner blower rotating speed, to maintain described air-conditioner
The pressure balance of refrigerant circulation circuit.
10. air-conditioner as claimed in claim 9, it is characterised in that described control unit is for having at described current flow
During the trend of liter, control the deceleration operating of described indoor fan；
Described control module includes rotating speed judging unit, and described rotating speed judging unit is used at described current flow without ascendant trend
Time, it is judged that whether the rotating speed of described indoor fan is less than setting speed；
Described control unit is for when the rotating speed of described indoor fan is less than described setting speed, controlling described indoor fan and add
Speed operating；When the rotating speed of described indoor fan is not less than described setting speed, controls described indoor fan and turn by described setting
Speed operating.
11. air-conditioners as claimed in claim 10, it is characterised in that described electric current judging unit is at described indoor fan
Slowing down after operating, described in real-time judge, current flow is the most on the rise；
Described control unit for when described current flow is on the rise, controls described indoor fan and slows down further fortune
Turn；
Described control module includes time cumulation unit, and described time cumulation unit is used at described current flow without ascendant trend
Time, accumulative described indoor fan slows down the time operated:
Described control unit for when described indoor fan slow down operating cumulative time reach setting run slowly the time time, control
Make described indoor fan accelerated service.
12. air-conditioners as claimed in claim 9, it is characterised in that described electric current judging unit is default for judging first
In time, whether described current flow is consistently less than described early warning electric current；
Described electric current judging unit is when described current flow in the first Preset Time is less than described early warning electric current, it is judged that
In second Preset Time, whether described current flow works as time detected value number of times more than previous detected value more than set point number.
13. air-conditioners as claimed in claim 9, it is characterised in that described electric current judging unit is at described current flow
During not less than described early warning electric current, it is judged that in the 3rd Preset Time, described current flow is the most all the time not less than described early warning electricity
Stream:
Described control unit is for when in the 3rd Preset Time, described current flow is all the time not less than described early warning electric current, controlling
Described indoor fan is decelerated to minimum speed operating；
Described electric current judging unit described current flow in judging the 4th Preset Time is not less than described early warning the most all the time
Electric current:
Described control unit is for when in the 4th Preset Time, described current flow is all the time not less than described early warning electric current, controlling
The compressor power-off of described air-conditioner and control the display device prompting hypertonia of described air-conditioner.
14. air-conditioners as claimed in claim 9, it is characterised in that described control module includes:
Temperature detecting unit, described temperature detecting unit, for when described current flow is not more than described shutdown electric current, detects
The return air temperature of described air-conditioner and inner disc temperature；
Temperature judging unit, for judging that whether the described return air temperature difference with described inner disc temperature is more than setting the temperature difference；
Described control unit is for when the difference of described return air temperature with described inner disc temperature is more than and sets the temperature difference, controlling described
Display device prompting hypertonia,
Described time cumulation unit is not more than the time of described shutdown electric current for adding up described current flow；
Described control unit is used for when the time that described current flow is not more than described shutdown electric current reaches five Preset Times,
Control described compressor operating and control the elimination prompting of described display device；
Described control unit is for when the difference of described return air temperature with described inner disc temperature is not more than and sets the temperature difference, controlling institute
State display device prompting hypotony.
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| CN107869829A (en) * | 2017-11-14 | 2018-04-03 | 珠海格力电器股份有限公司 | Air conditioning control method, device and air conditioner |
| CN109899945A (en) * | 2019-03-14 | 2019-06-18 | 海信（广东）空调有限公司 | Outdoor unit, transducer air conditioning and its control method |
| CN110469947A (en) * | 2019-08-29 | 2019-11-19 | 重庆美的通用制冷设备有限公司 | The protection control method and system of air conditioner, air conditioner and readable storage medium storing program for executing |
| CN110494699A (en) * | 2017-04-04 | 2019-11-22 | 三菱电机株式会社 | The outdoor unit of heat pump water heater |
| CN112178802A (en) * | 2020-09-30 | 2021-01-05 | 青岛海尔空调器有限总公司 | Method and device for determining installation position of air conditioner outdoor unit and air conditioner |
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| CN112178802A (en) * | 2020-09-30 | 2021-01-05 | 青岛海尔空调器有限总公司 | Method and device for determining installation position of air conditioner outdoor unit and air conditioner |
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