CN105650817B - Control method, control device and the air conditioner of air conditioner - Google Patents
Control method, control device and the air conditioner of air conditioner Download PDFInfo
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- CN105650817B CN105650817B CN201610050567.9A CN201610050567A CN105650817B CN 105650817 B CN105650817 B CN 105650817B CN 201610050567 A CN201610050567 A CN 201610050567A CN 105650817 B CN105650817 B CN 105650817B
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- pressure
- air conditioner
- expulsion
- outdoor fan
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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
- F24F11/62—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
- F24F2110/00—Control inputs relating to air properties
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B13/00—Compression machines, plants or systems, with reversible cycle
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—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
- F24F11/65—Electronic processing for selecting an operating mode
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2140/00—Control inputs relating to system states
- F24F2140/10—Pressure
- F24F2140/12—Heat-exchange fluid pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2600/00—Control issues
- F25B2600/11—Fan speed control
- F25B2600/111—Fan speed control of condenser fans
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2600/00—Control issues
- F25B2600/11—Fan speed control
- F25B2600/112—Fan speed control of evaporator fans
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2700/00—Sensing or detecting of parameters; Sensors therefor
- F25B2700/19—Pressures
- F25B2700/193—Pressures of the compressor
- F25B2700/1931—Discharge pressures
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Atmospheric Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Signal Processing (AREA)
- Fluid Mechanics (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The present invention provides a kind of control method of air conditioner, control device and air conditioners, wherein the air conditioner includes refrigeration system, indoor fan and outdoor fan, and the control method of the air conditioner includes：When receiving the instruction for starting air conditioner, the operational mode of the air conditioner is detected, and detect the pressure at expulsion of compressor in the refrigeration system；According to the operational mode of the pressure at expulsion and the air conditioner, the indoor fan and/or the outdoor fan are controlled, controlled with the pressure to the refrigeration system.Technical scheme of the present invention can be in the pressure at expulsion exception for detecting compressor; ensure system pressure being adjusted in non-stop-machine pressure limit by controlling indoor fan and/or outdoor fan in time; smooth startup and the reliability service for ensureing air-conditioning system, to improve the usage comfort of user.
Description
Technical field
The present invention relates to air conditioner technical fields, in particular to a kind of control method of air conditioner, a kind of air conditioner
Control device and a kind of air conditioner.
Background technology
When existing air conditioner is switched under high-temperature refrigeration pattern, the ramp-up rate of system pressure is than sensor sensing temperature
Speed is fast, causes system when having little time to make the appropriate protection act for reducing pressure, is just directly entered high voltage protective shutdown, shadow
Ring the comfort that user uses.
Equally, in a heating mode, it when especially external environment temperature difference is higher indoors, is susceptible to and starts moment compression
The problem of machine starting current is extremely big, and system pressure increases suddenly, and then will also result in system and have little time to make appropriate reduction pressure
The protection act of power is just directly entered high voltage protective and shuts down or overload of compressor is caused to protect, the shape of compressor stop jumping occurs
Condition.
Currently, some air conditioners are mounted with high-voltage switch gear, when a setup pressure value is reached, high-voltage switch gear acts at once, makes
At pressure switch frequent movement, air conditioner is unable to operate normally.In addition, the air conditioner also having has evaporator high temperature protection program,
Principle is to check condensation temperature by evaporator temperature sensor, and outdoor fan stopping just being controlled when temperature reaches set temperature
Operation achievees the purpose that reduce condensing pressure, protection system safety with this.But since compressor is starting moment, evaporator
Temperature rise be far from pressure rising it is fast, so temperature do not reach protection temperature when, pressure switch has just been moved
Make, and then air-conditioning is caused to be shut down, seriously affects the comfort that user uses.
Invention content
The present invention is directed to solve at least one of the technical problems existing in the prior art or related technologies.
For this purpose, an object of the present invention is to provide a kind of control program of new air conditioner, can detect
When the pressure at expulsion exception of compressor, ensured in time by system pressure by being controlled indoor fan and/or outdoor fan
Power is adjusted in non-stop-machine pressure limit, ensures smooth startup and the reliability service of air-conditioning system, to improve making for user
Use comfort level.
It is another object of the present invention to propose a kind of air conditioner.
To achieve the above object, a kind of embodiment according to the first aspect of the invention, it is proposed that controlling party of air conditioner
Method, the air conditioner include refrigeration system, indoor fan and outdoor fan, and the control method of the air conditioner includes：It is receiving
To when the instruction for starting air conditioner, the operational mode of the air conditioner is detected, and detect the row of compressor in the refrigeration system
Atmospheric pressure；According to the operational mode of the pressure at expulsion and the air conditioner, to the indoor fan and/or the outdoor fan
It is controlled, is controlled with the pressure to the refrigeration system.
The control method of air conditioner according to an embodiment of the invention, since compressor is starting moment, the temperature of evaporator
Degree rise no pressure rise it is fast, if therefore system pressure is adjusted according to the temperature of evaporator, it will cause be
When system has little time to make the protection act for reducing pressure, system is just directly entered high voltage protective, and then can influence the use of user
Comfort.And by detecting the pressure at expulsion of the operational mode and compressor of air conditioner, with according to the pressure at expulsion of compressor and
The operational mode of air conditioner, controls indoor fan and/or outdoor fan so that in the pressure at expulsion for detecting compressor
When abnormal, the mesh of Indirect method system pressure can be reached in time by controlling indoor fan and/or outdoor fan
, and then may insure system pressure being adjusted in non-stop-machine pressure limit, ensure air-conditioning system smooth startup and can
By operation, to improve the usage comfort of user.
The control method of air conditioner according to the abovementioned embodiments of the present invention can also have following technical characteristic：
According to one embodiment of present invention, according to the operational mode of the pressure at expulsion and the air conditioner, to described
The step of indoor fan and/or the outdoor fan are controlled, specifically includes：If the air conditioner carries out work in a chiller mode
Make, then
When detecting that the pressure at expulsion is less than or equal to first pressure value, the wind that controls the outdoor fan to set
Speed works；When detecting the pressure at expulsion more than the first pressure value, and being less than second pressure value, described in control
Outdoor fan is worked with the wind speed more than first predetermined value；Detecting the pressure at expulsion more than or equal to described second
When pressure value, it is out of service to control the air conditioner.
The control method of air conditioner according to an embodiment of the invention, the wind speed of setting can be the wind speed of acquiescence, i.e., empty
Acquiescence wind speed when device being adjusted to be worked in a chiller mode；It is pressed detecting that pressure at expulsion is more than first pressure value and is less than second
When force value, control outdoor fan is worked with the wind speed more than first predetermined value, can suitably reduce the exhaust pressure of compressor
Power avoids the problem that system pressure is excessively high and leads to job insecurity；And by detecting that pressure at expulsion is greater than or equal to the
When two pressure values, control air conditioner is out of service, can cause to avoid still being run when the pressure at expulsion of compressor is excessive
The unstable problem of system.Wherein, can be the superelevation wind speed of outdoor fan more than the wind speed of first predetermined value.
According to one embodiment of present invention, the outdoor fan is being controlled to carry out work more than the wind speed of first predetermined value
After the step of making, further include：If detecting, the pressure at expulsion is less than or equal to the first pressure value, counts the row
Atmospheric pressure is less than or equal to the duration of the first pressure value；When the duration reaches the first scheduled duration, control
The outdoor fan is made to work with the wind speed of the setting.
The control method of air conditioner according to an embodiment of the invention, in control outdoor fan with more than first predetermined value
After wind speed is worked, if detecting, the pressure at expulsion of compressor is less than or equal to the duration of first pressure value and reaches the
When one scheduled duration, control outdoor fan is worked with the wind speed set, can be to avoid the pressure value long-time of refrigeration system
Refrigeration effect that is relatively low and influencing air conditioner.Wherein, the first scheduled duration can be 3 minutes.
According to one embodiment of present invention, according to the operational mode of the pressure at expulsion and the air conditioner, to described
The step of indoor fan and/or the outdoor fan are controlled, specifically includes：If the air conditioner carries out work with heating mode
Make, then
When detecting that the pressure at expulsion is less than or equal to first pressure value, the indoor fan and the outdoor are controlled
Wind turbine is worked with the wind speed of setting respectively；Detecting that the pressure at expulsion is more than the first pressure value, and less than the
When two pressure values, controls the indoor fan and worked with the wind speed more than second predetermined value, and control the outdoor fan
Reduce desired speed；When detecting that the pressure at expulsion is greater than or equal to the second pressure value, controls the air conditioner and stop
Only run.
The control method of air conditioner according to an embodiment of the invention, the wind speed of setting can be the wind speed of acquiescence, i.e., empty
Acquiescence wind speed when device being adjusted to be worked with heating mode；It is pressed detecting that pressure at expulsion is more than first pressure value and is less than second
When force value, control indoor fan is worked with the wind speed more than second predetermined value, and controls outdoor fan reduction desired speed,
The pressure at expulsion that compressor can suitably be reduced avoids the problem that system pressure is excessively high and leads to job insecurity；And by
When detecting that pressure at expulsion is greater than or equal to second pressure value, control air conditioner is out of service, can be to avoid in the row of compressor
The problem for still being run when atmospheric pressure is excessive and causing system unstable.Wherein, can be room more than the wind speed of second predetermined value
The high wind speed of inner blower；It can be that one grade of operation drops in control outdoor fan that control outdoor fan, which reduces desired speed,.
According to one embodiment of present invention, the indoor fan is being controlled to carry out work more than the wind speed of second predetermined value
When making, and after the step of controlling the outdoor fan reduction desired speed, and passing through the second scheduled duration, further include：
If the pressure at expulsion is less than the second pressure value still above the first pressure value, then described in control
Outdoor fan reduces desired speed again, until the outdoor fan is shut down；If the pressure at expulsion is less than or equal to described the
One pressure value then counts the duration that the pressure at expulsion is less than or equal to the first pressure value, and in described continue
When length reaches third scheduled duration, controls the outdoor fan and increase desired speed, until the rotating speed of the outdoor fan reaches
The wind speed of the setting.
The control method of air conditioner according to an embodiment of the invention, it is predetermined by being more than second in control indoor fan
The wind speed of value works, and control outdoor fan reduce desired speed after, and by the second scheduled duration when, if compressor
Pressure at expulsion still above first pressure value, and be less than second pressure value, then control outdoor fan reduces desired speed again,
It can continue the pressure value of reduction refrigeration system；And the pressure at expulsion of compressor be less than or equal to first pressure value it is lasting when
When length reaches third scheduled duration, control outdoor fan increases desired speed, can be to avoid the pressure value long-time of refrigeration system
Heating effect that is relatively low and influencing air conditioner.Wherein, the second scheduled duration can be 3 seconds, and third scheduled duration can be 3 points
Clock；It can increase a gear to increase desired speed.
Embodiment according to a second aspect of the present invention, it is also proposed that a kind of control device of air conditioner, the air conditioner packet
Refrigeration system, indoor fan and outdoor fan are included, the control device of the air conditioner includes：Detection unit, for receiving
When starting the instruction of air conditioner, the operational mode of the air conditioner is detected, and detect the exhaust of compressor in the refrigeration system
Pressure；Control unit, the operational mode of the pressure at expulsion and the air conditioner for being detected according to the detection unit,
The indoor fan and/or the outdoor fan are controlled, controlled with the pressure to the refrigeration system.
The control device of air conditioner according to an embodiment of the invention, since compressor is starting moment, the temperature of evaporator
Degree rise no pressure rise it is fast, if therefore system pressure is adjusted according to the temperature of evaporator, it will cause be
When system has little time to make the protection act for reducing pressure, system is just directly entered high voltage protective, and then can influence the use of user
Comfort.And by detecting the pressure at expulsion of the operational mode and compressor of air conditioner, with according to the pressure at expulsion of compressor and
The operational mode of air conditioner, controls indoor fan and/or outdoor fan so that in the pressure at expulsion for detecting compressor
When abnormal, the mesh of Indirect method system pressure can be reached in time by controlling indoor fan and/or outdoor fan
, and then can ensure system pressure being adjusted in non-stop-machine pressure limit, ensure air-conditioning system smooth startup and can
By operation, to improve the usage comfort of user.
The control device of air conditioner according to the abovementioned embodiments of the present invention can also have following technical characteristic：
According to one embodiment of present invention, described control unit is specifically used for：The air conditioner in a chiller mode into
When row work,
If the detection unit detects that the pressure at expulsion is less than or equal to first pressure value, the outdoor wind is controlled
Machine is worked with the wind speed set；If the detection unit detects that the pressure at expulsion is more than the first pressure value, and
Less than second pressure value, then controls the outdoor fan and worked with the wind speed more than first predetermined value；If the detection is single
Member detects that the pressure at expulsion is greater than or equal to the second pressure value, then it is out of service to control the air conditioner.
The control device of air conditioner according to an embodiment of the invention, the wind speed of setting can be the wind speed of acquiescence, i.e., empty
Acquiescence wind speed when device being adjusted to be worked in a chiller mode；It is pressed detecting that pressure at expulsion is more than first pressure value and is less than second
When force value, control outdoor fan is worked with the wind speed more than first predetermined value, can suitably reduce the exhaust pressure of compressor
Power avoids the problem that system pressure is excessively high and leads to job insecurity；And by detecting that pressure at expulsion is greater than or equal to the
When two pressure values, control air conditioner is out of service, can cause to avoid still being run when the pressure at expulsion of compressor is excessive
The unstable problem of system.Wherein, can be the superelevation wind speed of outdoor fan more than the wind speed of first predetermined value.
According to one embodiment of present invention, further include：Statistic unit, for controlling the outdoor in described control unit
After wind turbine is worked with the wind speed more than first predetermined value, if the detection unit detect the pressure at expulsion be less than or
Equal to the first pressure value, then the duration that the pressure at expulsion is less than or equal to the first pressure value is counted；It is described
Control unit is additionally operable to, and when the duration reaches the first scheduled duration, controls the outdoor fan with the setting
Wind speed works.
The control device of air conditioner according to an embodiment of the invention, in control outdoor fan with more than first predetermined value
After wind speed is worked, if detecting, the pressure at expulsion of compressor is less than or equal to the duration of first pressure value and reaches the
When one scheduled duration, control outdoor fan is worked with the wind speed set, can be to avoid the pressure value long-time of refrigeration system
Refrigeration effect that is relatively low and influencing air conditioner.Wherein, the first scheduled duration can be 3 minutes.
According to one embodiment of present invention, described control unit is specifically used for：The air conditioner with heating mode into
When row work,
If the detection unit detects that the pressure at expulsion is less than or equal to first pressure value, the indoor wind is controlled
Machine and the outdoor fan are worked with the wind speed of setting respectively；If the detection unit detects that the pressure at expulsion is more than
The first pressure value, and be less than second pressure value, then the indoor fan is controlled to be carried out more than the wind speed of second predetermined value
Work, and control the outdoor fan reduction desired speed；If the detection unit detects that the pressure at expulsion is more than or waits
In the second pressure value, then it is out of service to control the air conditioner.
The control device of air conditioner according to an embodiment of the invention, the wind speed of setting can be the wind speed of acquiescence, i.e., empty
Acquiescence wind speed when device being adjusted to be worked with heating mode；It is pressed detecting that pressure at expulsion is more than first pressure value and is less than second
When force value, control indoor fan is worked with the wind speed more than second predetermined value, and controls outdoor fan reduction desired speed,
The pressure at expulsion that compressor can suitably be reduced avoids the problem that system pressure is excessively high and leads to job insecurity；And by
When detecting that pressure at expulsion is greater than or equal to second pressure value, control air conditioner is out of service, can be to avoid in the row of compressor
The problem for still being run when atmospheric pressure is excessive and causing system unstable.Wherein, can be room more than the wind speed of second predetermined value
The high wind speed of inner blower；It can be that one grade of operation drops in control outdoor fan that control outdoor fan, which reduces desired speed,.
According to one embodiment of present invention, described control unit is specifically additionally operable to：The indoor fan is being controlled with big
It works, and is controlled after the outdoor fan reduces desired speed in the wind speed of second predetermined value, and is predetermined by second
When duration,
If the detection unit detects the pressure at expulsion still above the first pressure value, and is less than described second
Pressure value, then control the outdoor fan reduces desired speed again, until outdoor fan shutdown, and if the exhaust
Pressure is less than or equal to the first pressure value, then counts the pressure at expulsion and continue less than or equal to the first pressure value
Duration, and when the duration reaches third scheduled duration, control the outdoor fan and increase desired speed, until described
The rotating speed of outdoor fan reaches the wind speed of the setting.
The control device of air conditioner according to an embodiment of the invention, it is predetermined by being more than second in control indoor fan
The wind speed of value works, and control outdoor fan reduce desired speed after, and by the second scheduled duration when, if compressor
Pressure at expulsion still above first pressure value, and be less than second pressure value, then control outdoor fan reduces desired speed again,
It can continue the pressure value of reduction refrigeration system；And the pressure at expulsion of compressor be less than or equal to first pressure value it is lasting when
When length reaches third scheduled duration, control outdoor fan increases desired speed, can be to avoid the pressure value long-time of refrigeration system
Heating effect that is relatively low and influencing air conditioner.Wherein, the second scheduled duration can be 3 seconds, and third scheduled duration can be 3 points
Clock；It can increase a gear to increase desired speed.
Embodiment according to a third aspect of the present invention, it is also proposed that a kind of air conditioner, including：Refrigeration system, the refrigeration
System includes compressor；Indoor fan and outdoor fan；And the control of the air conditioner as described in any of the above-described embodiment
Device, detection unit in the control device pass through described in the pressure switch detection that is connected on the exhaust pipe of the compressor
The pressure at expulsion of compressor.
According to one embodiment of present invention, the pressure switch includes：
Cavity；
Connecting tube, one end of the connecting tube are connected to the cavity, and the other end of the connecting tube is connected to the pressure
The exhaust pipe of contracting machine；
Spring leaf, in the cavity, the spring leaf is entering the gas in the cavity by the connecting tube for setting
It can be deformed upon under the action of body pressure；
First fixed contact, the second fixed contact and what is be arranged between first fixed contact and second fixed contact dynamic touch
Point；
One end of supporting rod, the supporting rod is arranged on the spring leaf, and the other end of the supporting rod is moved with described
Contact is connected, and the supporting rod can drive the movable contact to move, when the spring leaf does not deform upon, the movable contact and institute
The first fixed contact is stated to be in contact；
Wherein, when the movable contact is in contact with first fixed contact, the pressure at expulsion is less than or equal to described
First pressure value；When the movable contact and first fixed contact and second fixed contact do not contact, the exhaust pressure
Power is more than the first pressure value and is less than the second pressure value；It is in contact with second fixed contact in the movable contact
When, the pressure at expulsion is greater than or equal to the second pressure value.
Specifically, when the pressure at expulsion of compressor increases, gaseous refrigerant can be entered by connecting tube in cavity, in turn
It can promote Spring deformation, and then spring leaf drives supporting rod movement, so that movable contact is left the first fixed contact, when pressure is larger
When, movable contact can touch the second fixed contact.In actual detection process, it can be powered to movable contact, then pass through detection
Whether the first fixed contact and the second fixed contact have electric current to flow through to determine movable contact is contacted with which fixed contact.
The additional aspect and advantage of the present invention will be set forth in part in the description, and will partly become from the following description
Obviously, or practice through the invention is recognized.
Description of the drawings
The above-mentioned and/or additional aspect and advantage of the present invention will become in the description from combination following accompanying drawings to embodiment
Obviously and it is readily appreciated that, wherein：
Fig. 1 shows the structural schematic diagram of refrigeration system according to an embodiment of the invention；
Fig. 2 shows the structural schematic diagrams of pressure switch according to an embodiment of the invention；
Fig. 3 shows the schematic flow diagram of the control method of air conditioner according to first embodiment of the invention；
Fig. 4 shows the schematic block diagram of the control device of air conditioner according to an embodiment of the invention；
Fig. 5 shows the schematic flow diagram of the control method of the air conditioner of second embodiment according to the present invention；
Fig. 6 shows the schematic flow diagram of the control method of the air conditioner of third embodiment according to the present invention.
Specific implementation mode
To better understand the objects, features and advantages of the present invention, below in conjunction with the accompanying drawings and specific real
Mode is applied the present invention is further described in detail.It should be noted that in the absence of conflict, the implementation of the application
Feature in example and embodiment can be combined with each other.
Many details are elaborated in the following description to facilitate a thorough understanding of the present invention, still, the present invention may be used also
To be implemented different from other modes described here using other, therefore, protection scope of the present invention is not by described below
Specific embodiment limitation.
Fig. 1 shows the structural schematic diagram of refrigeration system according to an embodiment of the invention.
As shown in Figure 1, refrigeration system according to an embodiment of the invention, including：Compressor 1, exhaust pipe 2, pressure switch
3, four-way valve 4, condenser 5, throttling set 6, evaporator 7, muffler 8.Wherein, the structure of pressure switch 3 is as shown in Fig. 2, packet
It includes：
Cavity 31；
Connecting tube 32, one end of the connecting tube 32 are connected to the cavity 31, the other end connection of the connecting tube 32
To the exhaust pipe 2；
Spring leaf 33 is arranged in the cavity 31, and the spring leaf 33 is entering the chamber by the connecting tube 32
It can be deformed upon under the action of gas pressure in body 31；
First fixed contact 35, the second fixed contact 37 and setting first fixed contact 35 and second fixed contact 37 it
Between movable contact 36；
One end of supporting rod 34, the supporting rod 34 is arranged on the spring leaf 33, the other end of the supporting rod 34
It is connected with the movable contact 36, the supporting rod 34 can drive the movable contact 36 to move, and the spring leaf 33 does not deform upon
When, the movable contact 36 is in contact with first fixed contact 35；
Wherein, when the movable contact 36 is in contact with first fixed contact 35, the pressure at expulsion is less than or equal to
First pressure value；When the movable contact 36 and first fixed contact 35 and second fixed contact 36 do not contact, that is, prop up
When the displacement S of strut 34 is more than 0 and is less than N (N can be set as 1mm), the pressure at expulsion is more than first pressure value and is less than
Second pressure value；When the movable contact 36 is in contact with second fixed contact 37, i.e. the displacement S of supporting rod 34 is more than N
When, the pressure at expulsion is greater than or equal to the second pressure value.
Specifically, when the pressure at expulsion of compressor increases, gaseous refrigerant can be entered by connecting tube 32 in cavity 31,
And then spring leaf 33 can be promoted to deform, and then spring leaf 33 drives supporting rod 34 to move, and movable contact 36 is made to leave the first fixed contact
35, when pressure is larger, movable contact 36 can touch the second fixed contact 37.In actual detection process, movable contact can be given
36 are powered, and then determine movable contact and which by the way that whether the first fixed contact 35 of detection and the second fixed contact 37 have electric current to flow through
Fixed contact contacts, and can be specifically powered to movable contact 36 by connecting line 38 shown in Fig. 2, it is fixed tactile that connecting line 39 is connected to second
Point 37, connecting line 310 is connected to the first fixed contact 35.
The scheme that following detailed description controls the air conditioner with refrigeration system shown in FIG. 1.
Fig. 3 shows the schematic flow diagram of the control method of air conditioner according to first embodiment of the invention.
As shown in figure 3, the control method of air conditioner according to first embodiment of the invention, including：
Step 302, when receiving the instruction for starting air conditioner, the operational mode of the air conditioner is detected, and detect institute
State the pressure at expulsion of compressor in refrigeration system；
Step 304, according to the operational mode of the pressure at expulsion and the air conditioner, to the indoor fan and/or institute
It states outdoor fan to be controlled, be controlled with the pressure to the refrigeration system.
Since compressor is starting moment, the temperature rise of evaporator does not have the fast of pressure rising, if therefore according to evaporation
The temperature of device is adjusted system pressure, when having little time to make the protection act for reducing pressure it will cause system, system
It is just directly entered high voltage protective, and then the comfort of user can be influenced.And by detecting the operational mode and pressure of air conditioner
The pressure at expulsion of contracting machine, with according to the operational mode of the pressure at expulsion of compressor and air conditioner, to indoor fan and/or outdoor wind
Machine is controlled so that, can be in time by indoor fan and/or outdoor in the pressure at expulsion exception for detecting compressor
Wind turbine is controlled, and achievees the purpose that Indirect method system pressure, and then may insure system pressure being adjusted to non-stop-machine
In pressure limit, ensure smooth startup and the reliability service of air-conditioning system, to improve the usage comfort of user.
The control method of air conditioner according to the abovementioned embodiments of the present invention can also have following technical characteristic：
According to one embodiment of present invention, according to the operational mode of the pressure at expulsion and the air conditioner, to described
The step of indoor fan and/or the outdoor fan are controlled, specifically includes：If the air conditioner carries out work in a chiller mode
Make, then
When detecting that the pressure at expulsion is less than or equal to first pressure value, the wind that controls the outdoor fan to set
Speed works；When detecting the pressure at expulsion more than the first pressure value, and being less than second pressure value, described in control
Outdoor fan is worked with the wind speed more than first predetermined value；Detecting the pressure at expulsion more than or equal to described second
When pressure value, it is out of service to control the air conditioner.
Wherein, the wind speed of setting can be the wind speed of acquiescence, i.e., acquiescence wind when air conditioner is worked in a chiller mode
Speed；When detecting pressure at expulsion more than first pressure value and being less than second pressure value, control outdoor fan is pre- to be more than first
The wind speed of definite value works, and can suitably reduce the pressure at expulsion of compressor, avoid system pressure excessively high and lead to work not
Stable problem；And by the way that when detecting that pressure at expulsion is greater than or equal to second pressure value, control air conditioner is out of service, it can
To avoid the problem for still being run when the pressure at expulsion of compressor is excessive and causing system unstable.Wherein, it is pre- to be more than first
The wind speed of definite value can be the superelevation wind speed of outdoor fan.
According to one embodiment of present invention, the outdoor fan is being controlled to carry out work more than the wind speed of first predetermined value
After the step of making, further include：If detecting, the pressure at expulsion is less than or equal to the first pressure value, counts the row
Atmospheric pressure is less than or equal to the duration of the first pressure value；When the duration reaches the first scheduled duration, control
The outdoor fan is made to work with the wind speed of the setting.
Specifically, after control outdoor fan is worked with the wind speed more than first predetermined value, if detecting compression
When the duration that the pressure at expulsion of machine is less than or equal to first pressure value reaches the first scheduled duration, control outdoor fan is to set
Fixed wind speed works, can be relatively low for a long time and influence the refrigeration effect of air conditioner to avoid the pressure value of refrigeration system.Its
In, the first scheduled duration can be 3 minutes.
According to one embodiment of present invention, according to the operational mode of the pressure at expulsion and the air conditioner, to described
The step of indoor fan and/or the outdoor fan are controlled, specifically includes：If the air conditioner carries out work with heating mode
Make, then
When detecting that the pressure at expulsion is less than or equal to first pressure value, the indoor fan and the outdoor are controlled
Wind turbine is worked with the wind speed of setting respectively；Detecting that the pressure at expulsion is more than the first pressure value, and less than the
When two pressure values, controls the indoor fan and worked with the wind speed more than second predetermined value, and control the outdoor fan
Reduce desired speed；When detecting that the pressure at expulsion is greater than or equal to the second pressure value, controls the air conditioner and stop
Only run.
Wherein, the wind speed of setting can be the wind speed of acquiescence, i.e., acquiescence wind when air conditioner is worked with heating mode
Speed；When detecting pressure at expulsion more than first pressure value and being less than second pressure value, control indoor fan is pre- to be more than second
The wind speed of definite value works, and controls outdoor fan reduction desired speed, can suitably reduce the pressure at expulsion of compressor, keep away
Exempt from system pressure it is excessively high and the problem of lead to job insecurity；And by detecting pressure at expulsion more than or equal to second pressure
When value, control air conditioner is out of service, can lead to system not to avoid still being run when the pressure at expulsion of compressor is excessive
Stable problem.Wherein, can be the high wind speed of indoor fan more than the wind speed of second predetermined value；Controlling outdoor fan reduces in advance
It can be that one grade of operation drops in control outdoor fan to determine rotating speed.
According to one embodiment of present invention, the indoor fan is being controlled to carry out work more than the wind speed of second predetermined value
When making, and after the step of controlling the outdoor fan reduction desired speed, and passing through the second scheduled duration, further include：
If the pressure at expulsion is less than the second pressure value still above the first pressure value, then described in control
Outdoor fan reduces desired speed again, until the outdoor fan is shut down；If the pressure at expulsion is less than or equal to described the
One pressure value then counts the duration that the pressure at expulsion is less than or equal to the first pressure value, and in described continue
When length reaches third scheduled duration, controls the outdoor fan and increase desired speed, until the rotating speed of the outdoor fan reaches
The wind speed of the setting.
It is reduced in advance by being worked with the wind speed more than second predetermined value in control indoor fan, and controlling outdoor fan
After determining rotating speed, and when by the second scheduled duration, if the pressure at expulsion of compressor still above first pressure value, and less than the
Two pressure values, then control outdoor fan reduces desired speed again, can continue the pressure value for reducing refrigeration system；And it is compressing
When the duration that the pressure at expulsion of machine is less than or equal to first pressure value reaches third scheduled duration, control outdoor fan increases
Desired speed, can be relatively low for a long time and influence the heating effect of air conditioner to avoid the pressure value of refrigeration system.Wherein, second is pre-
Timing length can be 3 seconds, and third scheduled duration can be 3 minutes；It can increase a gear to increase desired speed.
According to one embodiment of present invention, the pressure at expulsion is detected by pressure switch shown in Fig. 2.
Fig. 4 shows the schematic block diagram of the control device of air conditioner according to an embodiment of the invention.
As shown in figure 4, the control device 400 of air conditioner according to an embodiment of the invention, including：402 He of detection unit
Control unit 404.
Wherein, detection unit 402, for when receiving the instruction for starting air conditioner, detecting the operation of the air conditioner
Pattern, and detect the pressure at expulsion of compressor in the refrigeration system；Control unit 404, for according to the detection unit 402
The operational mode of the pressure at expulsion and the air conditioner that detect, to the indoor fan and/or the outdoor fan into
Row control, is controlled with the pressure to the refrigeration system.
Since compressor is starting moment, the temperature rise of evaporator does not have the fast of pressure rising, if therefore according to evaporation
The temperature of device is adjusted system pressure, when having little time to make the protection act for reducing pressure it will cause system, system
It is just directly entered high voltage protective, and then the comfort of user can be influenced.And by detecting the operational mode and pressure of air conditioner
The pressure at expulsion of contracting machine, with according to the operational mode of the pressure at expulsion of compressor and air conditioner, to indoor fan and/or outdoor wind
Machine is controlled so that, can be in time by indoor fan and/or outdoor in the pressure at expulsion exception for detecting compressor
Wind turbine is controlled, and achievees the purpose that Indirect method system pressure, and then can ensure system pressure being adjusted to non-stop-machine
In pressure limit, ensure smooth startup and the reliability service of air-conditioning system, to improve the usage comfort of user.
The control device 400 of air conditioner according to the abovementioned embodiments of the present invention can also have following technical characteristic：
According to one embodiment of present invention, described control unit 404 is specifically used for：The air conditioner in a chiller mode
When being worked,
If the detection unit 402 detects that the pressure at expulsion is less than or equal to first pressure value, the room is controlled
Outer wind turbine is worked with the wind speed set；If the detection unit 402 detects that the pressure at expulsion is more than described first and presses
Force value, and be less than second pressure value, then it controls the outdoor fan and is worked with the wind speed more than first predetermined value；If described
Detection unit 402 detects that the pressure at expulsion is greater than or equal to the second pressure value, then controls the air conditioner and stop fortune
Row.
Wherein, the wind speed of setting can be the wind speed of acquiescence, i.e., acquiescence wind when air conditioner is worked in a chiller mode
Speed；When detecting pressure at expulsion more than first pressure value and being less than second pressure value, control outdoor fan is pre- to be more than first
The wind speed of definite value works, and can suitably reduce the pressure at expulsion of compressor, avoid system pressure excessively high and lead to work not
Stable problem；And by the way that when detecting that pressure at expulsion is greater than or equal to second pressure value, control air conditioner is out of service, it can
To avoid the problem for still being run when the pressure at expulsion of compressor is excessive and causing system unstable.Wherein, it is pre- to be more than first
The wind speed of definite value can be the superelevation wind speed of outdoor fan.
According to one embodiment of present invention, further include：Statistic unit 406, for controlling institute in described control unit 404
It states after outdoor fan worked with the wind speed more than first predetermined value, if the detection unit 402 detects the exhaust
Pressure is less than or equal to the first pressure value, then counts the pressure at expulsion and continue less than or equal to the first pressure value
Duration；Described control unit 404 is additionally operable to, and when the duration reaches the first scheduled duration, controls the outdoor fan
It is worked with the wind speed of the setting.
Specifically, after control outdoor fan is worked with the wind speed more than first predetermined value, if detecting compression
When the duration that the pressure at expulsion of machine is less than or equal to first pressure value reaches the first scheduled duration, control outdoor fan is to set
Fixed wind speed works, can be relatively low for a long time and influence the refrigeration effect of air conditioner to avoid the pressure value of refrigeration system.Its
In, the first scheduled duration can be 3 minutes.
According to one embodiment of present invention, described control unit 404 is specifically used for：In the air conditioner with heating mode
When being worked,
If the detection unit 402 detects that the pressure at expulsion is less than or equal to first pressure value, the room is controlled
Inner blower and the outdoor fan are worked with the wind speed of setting respectively；If the detection unit 402 detects the exhaust
Pressure is more than the first pressure value, and is less than second pressure value, then controls the indoor fan with more than second predetermined value
Wind speed works, and controls the outdoor fan reduction desired speed；If the detection unit 402 detects the exhaust pressure
Power is greater than or equal to the second pressure value, then it is out of service to control the air conditioner.
Wherein, the wind speed of setting can be the wind speed of acquiescence, i.e., acquiescence wind when air conditioner is worked with heating mode
Speed；When detecting pressure at expulsion more than first pressure value and being less than second pressure value, control indoor fan is pre- to be more than second
The wind speed of definite value works, and controls outdoor fan reduction desired speed, can suitably reduce the pressure at expulsion of compressor, keep away
Exempt from system pressure it is excessively high and the problem of lead to job insecurity；And by detecting pressure at expulsion more than or equal to second pressure
When value, control air conditioner is out of service, can lead to system not to avoid still being run when the pressure at expulsion of compressor is excessive
Stable problem.Wherein, can be the high wind speed of indoor fan more than the wind speed of second predetermined value；Controlling outdoor fan reduces in advance
It can be that one grade of operation drops in control outdoor fan to determine rotating speed.
According to one embodiment of present invention, described control unit 404 is specifically additionally operable to：Control the indoor fan with
Wind speed more than second predetermined value works, and controls after the outdoor fan reduces desired speed, and pre- by second
When periodically long,
If the detection unit 402 detects the pressure at expulsion still above the first pressure value, and less than described
Second pressure value, then control the outdoor fan reduces desired speed again, until outdoor fan shutdown, and if described
Pressure at expulsion is less than or equal to the first pressure value, then counts the pressure at expulsion less than or equal to the first pressure value
Duration, and when the duration reaches third scheduled duration, control the outdoor fan and increase desired speed, until
The rotating speed of the outdoor fan reaches the wind speed of the setting.
It is reduced in advance by being worked with the wind speed more than second predetermined value in control indoor fan, and controlling outdoor fan
After determining rotating speed, and when by the second scheduled duration, if the pressure at expulsion of compressor still above first pressure value, and less than the
Two pressure values, then control outdoor fan reduces desired speed again, can continue the pressure value for reducing refrigeration system；And it is compressing
When the duration that the pressure at expulsion of machine is less than or equal to first pressure value reaches third scheduled duration, control outdoor fan increases
Desired speed, can be relatively low for a long time and influence the heating effect of air conditioner to avoid the pressure value of refrigeration system.Wherein, second is pre-
Timing length can be 3 seconds, and third scheduled duration can be 3 minutes；It can increase a gear to increase desired speed.
According to one embodiment of present invention, the detection unit 402 is specifically used for：It is opened by pressure shown in Fig. 2
It closes and detects the pressure at expulsion.
The invention also provides a kind of air conditioner (not shown)s, including：The control dress of air conditioner as shown in Figure 4
Set 400.
Below in conjunction with Fig. 5 and Fig. 6, by taking above-mentioned first pressure value is 4.0Mpa, second pressure value is 4.4Mpa as an example in detail
Illustrate technical scheme of the present invention.
Fig. 5 shows the schematic flow diagram of the control method of the air conditioner of second embodiment according to the present invention.
As shown in figure 5, the control method of the air conditioner of second embodiment according to the present invention, including：
Step 502, air conditioner detects starting-up signal in cooling mode.
Step 504, whether the movable contact and fixed contact for detecting pressure switch are connected, and are divided into three kinds of situations, according to not sympathizing with
Condition selection executes step 506, step 518 and step 512.
Step 506, movable contact is contacted with the first fixed contact.
Step 508, system high pressure≤4.0MPa is determined.
Step 510, control outdoor fan is run according to the wind speed of setting.
Step 512, movable contact is contacted with the second fixed contact.
Step 514, system high pressure >=4.4MPa is determined.
Step 516, control air-conditioning system is out of service.
Step 518, movable contact does not contact with the first fixed contact and the second fixed contact.
Step 520,4.0Mpa ＜ system high pressure ＜ 4.4MPa are determined.
Step 522, outdoor fan is run with superpower wind speed, later the contact situation according to movable contact with fixed contact, selection
Execute step 524 and step 528.
Step 524, movable contact does not contact with the first fixed contact and the second fixed contact.
Step 526, outdoor fan continues to run with superpower wind speed.
Step 528, movable contact and the first fixed contact contact duration reach 3 minutes.
Step 530, outdoor fan is run according to wind speed setting.
Fig. 6 shows the schematic flow diagram of the control method of the air conditioner of third embodiment according to the present invention.
As shown in fig. 6, the control method of the air conditioner of third embodiment according to the present invention, including：
Step 602, air conditioner detects starting-up signal in a heating mode.
Step 604, whether the movable contact and fixed contact for detecting pressure switch are connected, and are divided into three kinds of situations, according to not sympathizing with
Condition selection executes step 606, step 618 and step 612.
Step 606, movable contact is contacted with the first fixed contact.
Step 608, system high pressure≤4.0MPa is determined.
Step 610, control indoor fan is run according to the wind speed of setting, and outdoor fan can also be transported according to the wind speed of setting
Row.
Step 612, movable contact is contacted with the second fixed contact.
Step 614, system high pressure >=4.4MPa is determined.
Step 616, control air-conditioning system is out of service.
Step 618, movable contact does not contact with the first fixed contact and the second fixed contact.
Step 620,4.0Mpa ＜ system high pressure ＜ 4.4MPa are determined.
Step 622, indoor fan is run with high wind speed, and one grade of operation drops in outdoor fan, until outdoor fan stops.
Step 624, whether detection movable contact contacts with the first fixed contact after judging 3s, if so, executing step 626；Otherwise,
Return to step 622.
Step 626, time of contact reaches 3 minutes.
Step 628, indoor fan high wind speed is run, and outdoor fan rises one grade of operation, until outdoor fan reaches setting wind
Speed.
Technical scheme of the present invention is described in detail above in association with attached drawing, the present invention proposes a kind of control of new air conditioner
Scheme processed, can be when detecting Compressor Discharge Pressure exception, in time by being controlled to indoor fan and/or outdoor fan
It makes to ensure system pressure being adjusted in non-stop-machine pressure limit, ensures smooth startup and the reliability service of air-conditioning system,
To improve the usage comfort of user.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, any made by repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of control method of air conditioner, which is characterized in that the air conditioner includes refrigeration system, indoor fan and outdoor wind
The control method of machine, the air conditioner includes：
When receiving the instruction for starting air conditioner, the operational mode of the air conditioner is detected, and detect in the refrigeration system
The pressure at expulsion of compressor；
According to the operational mode of the pressure at expulsion and the air conditioner, to the indoor fan and/or the outdoor fan into
Row control, is controlled with the pressure to the refrigeration system；
According to the operational mode of the pressure at expulsion and the air conditioner, to the indoor fan and/or the outdoor fan into
It the step of row control, specifically includes：
If the air conditioner works in a chiller mode,
When detecting that the pressure at expulsion is less than or equal to first pressure value, control the outdoor fan with the wind speed that sets into
Row work；
When detecting the pressure at expulsion more than the first pressure value, and being less than second pressure value, the outdoor wind is controlled
Machine is worked with the wind speed more than first predetermined value；
When detecting that the pressure at expulsion is greater than or equal to the second pressure value, it is out of service to control the air conditioner.
2. the control method of air conditioner according to claim 1, which is characterized in that controlling the outdoor fan to be more than
After the step of wind speed of first predetermined value is worked, further include：
If detecting, the pressure at expulsion is less than or equal to the first pressure value, counts the pressure at expulsion and is less than or equal to
The duration of the first pressure value；
When the duration reaches the first scheduled duration, controls the outdoor fan and work is carried out with the wind speed of the setting
Make.
3. the control method of air conditioner according to claim 1, which is characterized in that according to the pressure at expulsion and the sky
The operational mode of device is adjusted to be specifically included the step of control the indoor fan and/or the outdoor fan：
If the air conditioner is worked with heating mode,
When detecting that the pressure at expulsion is less than or equal to first pressure value, the indoor fan and the outdoor fan are controlled
It is worked respectively with the wind speed of setting；
When detecting the pressure at expulsion more than the first pressure value, and being less than second pressure value, the indoor wind is controlled
Machine is worked with the wind speed more than second predetermined value, and controls the outdoor fan reduction desired speed；
When detecting that the pressure at expulsion is greater than or equal to the second pressure value, it is out of service to control the air conditioner.
4. the control method of air conditioner according to claim 3, which is characterized in that controlling the indoor fan to be more than
The wind speed of second predetermined value works, and after the step of controlling the outdoor fan reduction desired speed, and passes through second
When scheduled duration, further include：
If the pressure at expulsion is less than the second pressure value still above the first pressure value, then the outdoor is controlled
Wind turbine reduces desired speed again, until the outdoor fan is shut down；
If the pressure at expulsion is less than or equal to the first pressure value, counts the pressure at expulsion and be less than or equal to described the
The duration of one pressure value, and when the duration reaches third scheduled duration, control the outdoor fan and increase in advance
Rotating speed is determined, until the rotating speed of the outdoor fan reaches the wind speed of the setting.
5. a kind of control device of air conditioner, which is characterized in that the air conditioner includes refrigeration system, indoor fan and outdoor wind
The control device of machine, the air conditioner includes：
Detection unit, for when receiving the instruction for starting air conditioner, detecting the operational mode of the air conditioner, and detect institute
State the pressure at expulsion of compressor in refrigeration system；
Control unit, the operational mode of the pressure at expulsion and the air conditioner for being detected according to the detection unit,
The indoor fan and/or the outdoor fan are controlled, controlled with the pressure to the refrigeration system；
Described control unit is specifically used for：
When the air conditioner is worked in a chiller mode,
If the detection unit detect the pressure at expulsion be less than or equal to first pressure value, control the outdoor fan with
The wind speed of setting works；
If the detection unit detects that the pressure at expulsion is more than the first pressure value, and is less than second pressure value, then control
The outdoor fan is made to work with the wind speed more than first predetermined value；
If the detection unit detects that the pressure at expulsion is greater than or equal to the second pressure value, the air conditioner is controlled
It is out of service.
6. the control device of air conditioner according to claim 5, which is characterized in that further include：Statistic unit, in institute
It states control unit to control after the outdoor fan worked with the wind speed more than first predetermined value, if the detection unit is examined
It measures the pressure at expulsion and is less than or equal to the first pressure value, then count the pressure at expulsion and be less than or equal to described first
The duration of pressure value；
Described control unit is additionally operable to, and when the duration reaches the first scheduled duration, controls the outdoor fan with institute
The wind speed for stating setting works.
7. the control device of air conditioner according to claim 5, which is characterized in that described control unit is specifically used for：
When the air conditioner is worked with heating mode,
If the detection unit detect the pressure at expulsion be less than or equal to first pressure value, control the indoor fan and
The outdoor fan is worked with the wind speed of setting respectively；
If the detection unit detects that the pressure at expulsion is more than the first pressure value, and is less than second pressure value, then control
It makes the indoor fan to work with the wind speed more than second predetermined value, and control the outdoor fan to reduce desired speed；
If the detection unit detects that the pressure at expulsion is greater than or equal to the second pressure value, the air conditioner is controlled
It is out of service.
8. the control device of air conditioner according to claim 7, which is characterized in that described control unit is specifically additionally operable to：
It is worked with the wind speed more than second predetermined value controlling the indoor fan, and control the outdoor fan to reduce in advance
After determining rotating speed, and when the second scheduled duration of process,
If the detection unit detects the pressure at expulsion still above the first pressure value, and is less than the second pressure
Value, then control the outdoor fan reduces desired speed again, until outdoor fan shutdown, and
If the pressure at expulsion is less than or equal to the first pressure value, counts the pressure at expulsion and be less than or equal to described the
The duration of one pressure value, and when the duration reaches third scheduled duration, control the outdoor fan and increase in advance
Rotating speed is determined, until the rotating speed of the outdoor fan reaches the wind speed of the setting.
9. a kind of air conditioner, which is characterized in that including：
Refrigeration system, the refrigeration system include compressor；
Indoor fan and outdoor fan；And
The control device of air conditioner as described in any one of claim 5 to 8, the detection unit in the control device pass through
The pressure switch being connected on the exhaust pipe of the compressor detects the pressure at expulsion of the compressor.
10. air conditioner according to claim 9, which is characterized in that the pressure switch includes：
Cavity；
Connecting tube, one end of the connecting tube are connected to the cavity, and the other end of the connecting tube is connected to the exhaust pipe；
Spring leaf, in the cavity, the spring leaf is entering the gas pressure in the cavity by the connecting tube for setting
It can be deformed upon under the action of power；
First fixed contact, the second fixed contact and the movable contact being arranged between first fixed contact and second fixed contact；
One end of supporting rod, the supporting rod is arranged on the spring leaf, the other end of the supporting rod and the movable contact
It is connected, the supporting rod can drive the movable contact to move, when the spring leaf does not deform upon, the movable contact and described the
One fixed contact is in contact；
Wherein, when the movable contact is in contact with first fixed contact, the pressure at expulsion is less than or equal to first pressure
Value；When the movable contact and first fixed contact and second fixed contact do not contact, the pressure at expulsion is more than institute
It states first pressure value and is less than second pressure value；When the movable contact is in contact with second fixed contact, the exhaust pressure
Power is greater than or equal to the second pressure value.
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|---|---|---|---|
| CN201610050567.9A CN105650817B (en) | 2016-01-25 | 2016-01-25 | Control method, control device and the air conditioner of air conditioner |
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| CN201610050567.9A CN105650817B (en) | 2016-01-25 | 2016-01-25 | Control method, control device and the air conditioner of air conditioner |
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| CN105650817B true CN105650817B (en) | 2018-09-04 |
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| CN106288236B (en) * | 2016-09-30 | 2019-09-20 | Tcl空调器(中山)有限公司 | Air conditioner compress control method and air conditioner |
| CN107449190A (en) * | 2017-06-19 | 2017-12-08 | 奥克斯空调股份有限公司 | A kind of high load capacity refrigeration control method of air-conditioning |
| CN107120812A (en) * | 2017-06-20 | 2017-09-01 | 合肥天鹅制冷科技有限公司 | Wind speed induction installation |
| CN107957117B (en) * | 2017-10-31 | 2020-04-14 | 青岛海尔空调器有限总公司 | Method and device for controlling rotating speed of outdoor fan of air conditioner |
| CN108674123B (en) * | 2018-04-18 | 2020-07-28 | 浙江吉利控股集团有限公司 | Control method and control system of vehicle air conditioner and vehicle |
| CN110762784B (en) * | 2018-07-10 | 2021-12-28 | 青岛海尔空调电子有限公司 | Control method and device for air conditioner fan and computer readable storage medium |
| CN109812920B (en) * | 2019-02-25 | 2021-01-19 | 奥克斯空调股份有限公司 | Method and device for controlling starting and stopping of multiple compressors of air conditioner and multi-split system |
| CN110006140A (en) * | 2019-03-04 | 2019-07-12 | 青岛海尔空调电子有限公司 | Control method and air-cooled magnetic suspension unit for air-cooled magnetic suspension unit |
| CN111750481B (en) * | 2019-03-27 | 2022-06-07 | 日立江森自控空调有限公司 | Air conditioner control method and air conditioner system |
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