CN104864550B - Convertible frequency air-conditioner - Google Patents
Convertible frequency air-conditioner Download PDFInfo
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- CN104864550B CN104864550B CN201510216818.1A CN201510216818A CN104864550B CN 104864550 B CN104864550 B CN 104864550B CN 201510216818 A CN201510216818 A CN 201510216818A CN 104864550 B CN104864550 B CN 104864550B
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- controller
- conditioner
- frequency
- refrigerating plant
- main controller
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—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
- F24F11/62—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
- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Signal Processing (AREA)
- Thermal Sciences (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The present invention discloses a kind of convertible frequency air-conditioner comprising refrigerating plant, main controller, detection module and submaster controller.The main controller, detection module and the submaster controller are connect with the refrigerating plant respectively.The detection module and the submaster controller are connect with the main controller respectively.Refrigerating plant includes compressor, outdoor fan, indoor fan and electric expansion valve to the refrigerating plant respectively.The main controller includes frequency-variable controller, and the frequency-variable controller is used to control the operation of the compressor.Can the detection module work normally for detecting the refrigerating plant and the main controller.The submaster controller starts when being used for the case where the frequency-variable controller failure and the refrigerating plant can work normally, and the submaster controller is for controlling the compressor operating.The convertible frequency air-conditioner of embodiment of the present invention remains to normal use in failure and maintenance period, to improve the satisfaction and the rate of complaints for reducing user that user uses.
Description
Technical field
The present invention relates to field of air conditioning more particularly to a kind of convertible frequency air-conditioners.
Background technology
The outdoor frequency-variable controller of existing convertible frequency air-conditioner is easy to be out of order, and maintenance time is long, and convertible frequency air-conditioner is therefore
Need the long period idle, it is difficult to meet user demand.
Invention content
The present invention is directed at least solve one of the technical problems existing in the prior art.For this purpose, the present invention provides a kind of change
Frequency air-conditioning.
The convertible frequency air-conditioner of better embodiment of the present invention, including refrigerating plant, main controller, detection module and submaster controller.
The main controller, detection module and the submaster controller are connect with the refrigerating plant respectively.The detection module and the pair
Controller is connect with the main controller respectively.Refrigerating plant includes compressor, outdoor fan, indoor wind to the refrigerating plant respectively
Machine and electric expansion valve.The main controller includes frequency-variable controller, and the frequency-variable controller is used to control the fortune of the compressor
Row.Can the detection module work normally for detecting the refrigerating plant and the main controller.The submaster controller is used for
Start when the case where the frequency-variable controller failure and the refrigerating plant can work normally, the submaster controller is for control
Make the compressor operating.
The convertible frequency air-conditioner of better embodiment of the present invention, when the convertible frequency air-conditioner breaks down, if being only the change
Frequency controller breaks down, and the refrigerating plant of the convertible frequency air-conditioner is normal, then starts the submaster controller and pressed for control
Contracting machine is run.The convertible frequency air-conditioner is breaking down and the maintenance period remains to normal use, to improve the satisfaction that user uses
Degree and the rate of complaints for reducing user.
In some embodiments, the detection module is in the convertible frequency air-conditioner startup self-detection or the convertible frequency air-conditioner
Can the refrigerating plant and the main controller are detected in operational process work normally.
In some embodiments, the submaster controller is for driving the compressor with fixed frequency and fixed step number fortune
Row.
In some embodiments, the submaster controller be used for main controller cooperation replace the frequency-variable controller with
Control the compressor operating.
In some embodiments, the convertible frequency air-conditioner includes the alarm module being connect with the main controller, the alarm
Module is used in the refrigerating plant or the main controller failure alarm.
The present invention also provides a kind of control method for frequency conversion air conditioner, the convertible frequency air-conditioner controlling party of better embodiment of the present invention
Method, including：
S1, can detect the refrigerating plant of the convertible frequency air-conditioner work normallyIf so, S2 is entered step, if it is not, entering step
Rapid S5；The refrigerating plant includes compressor；
S2, can the frequency-variable controller that detect the main controller of the convertible frequency air-conditioner normal operationIf so, S3 is entered step,
If it is not, entering step S4 and step S5；The frequency-variable controller is for controlling the compressor operating；
S3, normal operation；
S4 starts submaster controller to control the compressor operating；And
S5, alarm.
In some embodiments, step S1 is in the convertible frequency air-conditioner startup self-detection or the convertible frequency air-conditioner operational process
Whether the middle detection refrigerating plant works normally.
In some embodiments, step S4 is described in the frequency-variable controller failure and when the normal refrigerating plant
Submaster controller is used to replace the frequency-variable controller with main controller cooperation to control the compressor operating.
In some embodiments, for step S4 after submaster controller startup, the submaster controller controls the compression
Machine is with fixed frequency and fixed step number operation.
The additional aspect and advantage of the present invention will be provided partly from the following description, will partly be 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 is from combining in description of the following accompanying drawings to embodiment by change
It obtains obviously and is readily appreciated that, wherein：
Fig. 1 is the high-level schematic functional block diagram of the convertible frequency air-conditioner of better embodiment of the present invention.
Fig. 2 is the work flow diagram of the convertible frequency air-conditioner of better embodiment of the present invention.
Specific implementation mode
Embodiments of the present invention are described below in detail, the example of the embodiment is shown in the accompanying drawings, wherein from beginning
Same or similar element or element with the same or similar functions are indicated to same or similar label eventually.Below by ginseng
The embodiment for examining attached drawing description is exemplary, and is only used for explaining the present invention, and is not considered as limiting the invention.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
Can also be to be electrically connected or can mutually communicate to be mechanical connection；It can be directly connected, it can also be by between intermediary
It connects connected, can be the interaction relationship of the connection or two elements inside two elements.For the ordinary skill of this field
For personnel, the specific meanings of the above terms in the present invention can be understood according to specific conditions.
The present invention provides a kind of convertible frequency air-conditioner, is explained below in conjunction with the accompanying drawings.
Fig. 1 is the high-level schematic functional block diagram of the convertible frequency air-conditioner of better embodiment of the present invention.
The convertible frequency air-conditioner 100 of better embodiment of the present invention includes refrigerating plant 10, main controller 20, detection module 30 and pair
Controller 40.Main controller 20, detection module 30 and submaster controller 40 are connect with refrigerating plant 10 respectively.Detection module 30 and secondary control
Device 40 processed is connect with main controller 20 respectively.Refrigerating plant 10 includes that compressor 11, outdoor fan 12, indoor fan 13 and electronics are swollen
Swollen valve 14.Main controller 20 includes frequency-variable controller 21, and frequency-variable controller 21 is used to control the operation of compressor 11.Detection module 30
It can be worked normally for detecting refrigerating plant 10 and main controller 20.Submaster controller 40 in 21 failure of frequency-variable controller for making
Start when the case where device for cooling 10 can work normally, submaster controller 40 is for controlling the operation of compressor 11.
The convertible frequency air-conditioner 100 of better embodiment of the present invention, when convertible frequency air-conditioner 100 breaks down, if being only frequency conversion
Controller 21 breaks down, and the refrigerating plant 10 of convertible frequency air-conditioner 100 is normal, then starts submaster controller 40 to control compressor 11
Operation.Convertible frequency air-conditioner 100 is breaking down and the maintenance period remains to normal use, to improve the satisfaction and drop that user uses
The rate of complaints of low user.
Convertible frequency air-conditioner 100 is for freezing or heating.Convertible frequency air-conditioner 100 freezes, and the low-pressure steam of refrigerant is by compressor 11
It sucks and boil down to high steam heel row is to outdoor heat exchanger (not shown), outdoor heat exchanger is condenser at this time, while outdoor
The outdoor air of the aerofoil fan (not shown) sucking of wind turbine 12 flows through outdoor heat exchanger, takes away the heat of refrigerant releasing, makes
High pressure refrigerant vapor is condensed into highly pressurised liquid.Highly pressurised liquid sprays into room after filter (not shown), electric expansion valve 14
Interior heat exchanger (not shown), indoor heat exchanger is evaporator at this time, and is evaporated under corresponding low pressure, and the heat of surrounding is drawn.
Simultaneously indoor fan 13 carries out heat exchange between so that air is constantly entered the fin (not shown) of evaporator, and will turn cold after heat release
Air is sent to interior by air duct.Such room air constantly circulates, and achievees the purpose that reduce temperature or dehumidifying.Frequency conversion is empty
Adjust 100 heating operations opposite with process of refrigerastion.
Frequency-variable controller 21 is by controlling compressor 11 so that convertible frequency air-conditioner 100 realizes the function of automatic stepless speed change, change
Frequency air-conditioning 100 can automatically provide required cold (heat) amount according to room availability.After indoor temperature reaches desired value, outdoor wind
Machine 12 is then with can be accurately to keep the constant speed of this temperature to operate, to ensure the stabilization of environment temperature.
Frequency-variable controller 21 is to apply converter technique and microelectric technique, by changing 11 working power frequency side of compressor
Formula come control compressor 11 operation device.Frequency-variable controller 21 includes mainly rectification module, filter module, inverter module, system
Dynamic model block and drive module (not shown).The fixed alternating current of working frequency is converted to direct current by rectification module.Filter module
Including mainly components, the filter modules such as inductance, capacitance, resistance can prevent frequency-variable controller 21 to be interfered.Inverter module
Be high-power switching transistor array composition electronic switch, can by filter module export DC conversion at different frequency,
The square wave alternating-current electricity of width, amplitude.Brake module and drive module mainly control the stopping and operation of compressor 11.
Main controller 20 is the temperature controlled core of convertible frequency air-conditioner 100, and it is each that main controller 20 controls convertible frequency air-conditioner 100
The function operations such as refrigeration, dehumidifying, heating, automatic, air-supply, the switch of a component.Main controller 10 further includes that (figure is not for communication module
Show), communication module can realize the information exchange between outdoor fan 12 and indoor fan 13.
Electric expansion valve 14 is the restricting element of convertible frequency air-conditioner 100, and electric expansion valve 14 controls the exhaust temperature of compressor 11
Degree, can prevent the raising of delivery temperature from having an adverse effect to the performance of convertible frequency air-conditioner 100.When the refrigeration of convertible frequency air-conditioner 100 is stopped
When machine, electric expansion valve 14 is in the state of contract fully, to prevent the high-temp liquid of outdoor heat exchanger (condenser) from flowing into room
Interior heat exchanger (evaporator), energy loss when convertible frequency air-conditioner 100 being caused to be again started up.Before the booting of convertible frequency air-conditioner 100, electronics
14 standard-sized sheet of expansion valve makes the pressure balance of refrigerant, had not only realized the light-load starting of compressor 11 in this way, but also reduces compressor
Thermal loss caused by when 11 startups, shutdown, so that the more power saving of convertible frequency air-conditioner 100.
In some embodiments, detection module 30 is in 100 startup self-detection of convertible frequency air-conditioner or convertible frequency air-conditioner 100 is run
Can refrigerating plant 10 and main controller 20 is detected in the process work normally.
In this way, can be with the working condition of whole process supervision convertible frequency air-conditioner 100, when convertible frequency air-conditioner 100 breaks down
Alarm signal can be sent out in time.
Convertible frequency air-conditioner 100 is equipped with sensor (not shown), such as temperature sensor, humidity sensor and air duct sensing
The signal of device, the signal of sensor energy overall process collection work operation, sensor collection passes through a series of processing, can determine whether out
The operation conditions of convertible frequency air-conditioner 100.
In some embodiments, submaster controller 40 is for driving compressor 11 with fixed frequency and fixed step number operation.
When convertible frequency air-conditioner 100 breaks down, submaster controller 40 only drives compressor 11 with fixed frequency and fixed step
Number operation.
In this way, the cost of submaster controller 40 can be reduced, to reduce the cost of convertible frequency air-conditioner 100.At this point, convertible frequency air-conditioner
100 are equivalent to a fixed rotating speed air-conditioning, not the function of frequency control, can meet client during 100 failure of convertible frequency air-conditioner
Requirement.When 100 failure of convertible frequency air-conditioner, fixed frequency and fixed step number that compressor 11 is run can be set according to actual demand
Fixed, similarly, the driving capability of submaster controller 40 can coordinate the fixed frequency of compressor actual demand and fixed step number to design.
In some embodiments, submaster controller 40, which is used to coordinate with main controller 20, replaces frequency-variable controller 21 to control pressure
Contracting machine 11 works.
In this way, submaster controller 40 can share 20 trouble-proof component of main controller, such as certain resistance and/or capacitance
The circuit unit of composition so as to further decrease the cost of manufacture of submaster controller 40, while improving the utilization rate of component.
In some embodiments, convertible frequency air-conditioner 100 includes the alarm module being connect with main controller 20, and alarm module is used for
In 20 failure alarm of refrigerating plant 10 or main controller.
In this way, alarm module can send out the fault cues signal of main controller 20 and refrigerating plant 10, prompt staff and
Shi Weixiu, it is ensured that air-conditioning can restore to work normally as early as possible.Fault cues signal by diode displaying and/or can pass through
The display screen (not shown) of convertible frequency air-conditioner 100 is shown.It is (such as red that light emitting diode can send out the light with warning function
Light) it is used as fault cues signal, display screen that corresponding failure code can be shown as fault cues signal.
Referring to Fig. 2, the present invention also provides a kind of 100 control method of convertible frequency air-conditioner, the change of better embodiment of the present invention
100 control method of frequency air-conditioning, including：
Can the refrigerating plant 10 of S1, detection convertible frequency air-conditioner 100 work normallyIf so, S2 is entered step, if it is not, into
Step S5；Refrigerating plant 10 includes compressor 11；
S2, can the frequency-variable controller 21 that detect the main controller 20 of convertible frequency air-conditioner 100 normal operationIf so, entering step
S3, if it is not, entering step S4 and step S5；Frequency-variable controller 21 is for controlling the work of compressor 11；
S3, normal operation；
S4 starts submaster controller 40 to control the work of compressor 11；And
S5, alarm.
In some embodiments, step S1 is in 100 startup self-detection of convertible frequency air-conditioner or in 100 operational process of convertible frequency air-conditioner
Whether detection refrigerating plant 10 works normally.
In some embodiments, step S4 is in 21 failure of frequency-variable controller and when normal refrigerating plant 10, submaster controller
40 replace frequency-variable controller 21 to control the work of compressor 11 for coordinating with main controller 20.
In some embodiments, for step S4 after the startup of submaster controller 40, submaster controller 40 controls compressor 11 with solid
Determine frequency and fixed step number operation.
After convertible frequency air-conditioner 100 is switched on, into fast checking functions, if detecting frequency-variable controller 21, compressor 11, outdoor wind
Machine 12, indoor fan 13 and electric expansion valve 14 all without failure, start the work of 100 normal operation of convertible frequency air-conditioner.If detection
It breaks down to frequency-variable controller 21, and the compressor 11 of convertible frequency air-conditioner 100, outdoor fan 12, indoor fan 13 and electronics are swollen
All there is no problem for swollen valve 14, then starts submaster controller 40 and run by fixed frequency and fixed step number with controlling compressor 11, it is ensured that
Convertible frequency air-conditioner 100 is in failure and maintenance period energy normal operation, so as to improve the satisfaction of user and reduce the complaint of user
Rate.When air-conditioning 100 breaks down, user voluntarily can input the fixed frequency and fixation that compressor 11 is run according to actual needs
Step number, to obtain corresponding refrigeration (heat) effect.When the frequency-variable controller 21, compressor 11, outdoor fan of convertible frequency air-conditioner 100
12, when indoor fan 13 or electric expansion valve 14 break down, the alarm module of convertible frequency air-conditioner 100 can send out alarm signal, lead to
Know relevant staff's on-call maintenance.
In the description of this specification, reference term " embodiment ", " certain embodiments ", " schematically implementation
What the description of mode ", " example ", " specific example " or " some examples " etc. meant to describe in conjunction with the embodiment or example
Particular features, structures, materials, or characteristics are contained at least one embodiment or example of the present invention.In this specification
In, schematic expression of the above terms are not necessarily referring to identical embodiment or example.Moreover, the specific spy of description
Sign, structure, material or feature can be combined in any suitable manner in any one or more embodiments or example.
While embodiments of the present invention have been illustrated and described, it will be understood by those skilled in the art that：
Can these embodiments be carried out with a variety of variations in the case of not departing from the principle of the present invention and objective, modification, replace and become
Type, the scope of the present invention are limited by claim and its equivalent.
Claims (5)
1. a kind of convertible frequency air-conditioner, which is characterized in that including：
Refrigerating plant, the refrigerating plant include compressor；
The main controller being connect with the refrigerating plant, the main controller include frequency-variable controller, and the frequency-variable controller is for controlling
Make the compressor operating；
The detection module being connect with the refrigerating plant and the main controller, the detection module is for detecting the refrigerating plant
And can the main controller work normally；And
The submaster controller being connect with the refrigerating plant and the main controller, the submaster controller are used in the frequency-variable controller
Start when the case where failure and the refrigerating plant can work normally, the submaster controller is for controlling the compressor fortune
Row, the submaster controller for driving the compressor with fixed frequency and the operation of fixed step number, the submaster controller be used for
The main controller cooperation replaces the frequency-variable controller to control the compressor operating, and the submaster controller shares the master control
The trouble-free circuit element of device, the fixed frequency and the fixed step number are inputted according to user and are determined.
2. convertible frequency air-conditioner as described in claim 1, which is characterized in that the detection module is in the convertible frequency air-conditioner startup self-detection
When or the convertible frequency air-conditioner operational process in detect the refrigerating plant and the main controller and can work normally.
3. convertible frequency air-conditioner as described in claim 1, which is characterized in that the convertible frequency air-conditioner includes being connect with the main controller
Alarm module, the alarm module are used in the refrigerating plant or the main controller failure alarm.
4. a kind of control method for frequency conversion air conditioner, which is characterized in that including：
S1, can detect the refrigerating plant of the convertible frequency air-conditioner work normallyIf so, S2 is entered step, if it is not, entering step
S5；The refrigerating plant includes compressor；
S2, can the frequency-variable controller that detect the main controller of the convertible frequency air-conditioner normal operationIf so, S3 is entered step, if it is not,
Enter step S4 and step S5；The frequency-variable controller is for controlling the compressor operating；
S3, normal operation；
S4 starts submaster controller to control the compressor operating；And
S5, alarm；
Step S4 is in the frequency-variable controller failure and when the normal refrigerating plant, and the submaster controller is used for and the master control
Device cooperation replaces the frequency-variable controller to control the compressor operating；
For step S4 after submaster controller startup, the submaster controller controls the compressor with fixed frequency and fixed step number
Operation, the fixed frequency and the fixed step number are inputted according to user and are determined；
The submaster controller shares the trouble-free circuit element of the main controller.
5. control method for frequency conversion air conditioner as claimed in claim 4, which is characterized in that step S1 is switched on certainly in the convertible frequency air-conditioner
Detect whether the refrigerating plant works normally when inspection or in the convertible frequency air-conditioner operational process.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510216818.1A CN104864550B (en) | 2015-04-30 | 2015-04-30 | Convertible frequency air-conditioner |
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| CN201510216818.1A CN104864550B (en) | 2015-04-30 | 2015-04-30 | Convertible frequency air-conditioner |
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| CN104864550A CN104864550A (en) | 2015-08-26 |
| CN104864550B true CN104864550B (en) | 2018-09-11 |
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| CN107655142B (en) * | 2017-09-13 | 2023-06-30 | 珠海格力电器股份有限公司 | Emergency control device and method for air conditioning unit |
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| WO2005043047A1 (en) * | 2003-10-31 | 2005-05-12 | Daikin Industries, Ltd. | Air conditioner and control method thereof |
| CN101691939A (en) * | 2009-09-03 | 2010-04-07 | 海信科龙电器股份有限公司 | Air conditioner capable of realizing intelligent dual-mode switching |
| CN102679499A (en) * | 2012-05-24 | 2012-09-19 | 山东龙都瑞麟祥机电股份有限公司 | Air conditioner control system for electric coach |
| CN102705954A (en) * | 2011-07-28 | 2012-10-03 | 宁波奥克斯电气有限公司 | Internet-based automatic fault repair and detection method of frequency-conversion air conditioner |
| CN102971588A (en) * | 2010-05-27 | 2013-03-13 | 富士电机株式会社 | Computer room air-conditioning system, and redundant controller therefor |
-
2015
- 2015-04-30 CN CN201510216818.1A patent/CN104864550B/en active Active
Patent Citations (5)
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|---|---|---|---|---|
| WO2005043047A1 (en) * | 2003-10-31 | 2005-05-12 | Daikin Industries, Ltd. | Air conditioner and control method thereof |
| CN101691939A (en) * | 2009-09-03 | 2010-04-07 | 海信科龙电器股份有限公司 | Air conditioner capable of realizing intelligent dual-mode switching |
| CN102971588A (en) * | 2010-05-27 | 2013-03-13 | 富士电机株式会社 | Computer room air-conditioning system, and redundant controller therefor |
| CN102705954A (en) * | 2011-07-28 | 2012-10-03 | 宁波奥克斯电气有限公司 | Internet-based automatic fault repair and detection method of frequency-conversion air conditioner |
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