CN103925677A - Control method and device of air conditioner - Google Patents
Control method and device of air conditioner Download PDFInfo
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- CN103925677A CN103925677A CN201410183217.0A CN201410183217A CN103925677A CN 103925677 A CN103925677 A CN 103925677A CN 201410183217 A CN201410183217 A CN 201410183217A CN 103925677 A CN103925677 A CN 103925677A
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- 238000000034 method Methods 0.000 title claims abstract description 39
- 230000002159 abnormal effect Effects 0.000 claims abstract description 109
- 239000003507 refrigerant Substances 0.000 claims abstract description 44
- 238000005057 refrigeration Methods 0.000 claims abstract description 31
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims description 46
- 229910052731 fluorine Inorganic materials 0.000 claims description 46
- 239000011737 fluorine Substances 0.000 claims description 46
- 238000010304 firing Methods 0.000 claims description 27
- 238000001514 detection method Methods 0.000 claims description 24
- 230000005611 electricity Effects 0.000 description 12
- 230000000694 effects Effects 0.000 description 9
- 238000004364 calculation method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 230000005856 abnormality Effects 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 238000010792 warming Methods 0.000 description 2
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
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Abstract
The invention discloses a control method and a control device of an air conditioner. The control method of the air conditioner comprises the following steps: detecting whether an operating system of an air conditioner is abnormal, wherein the air conditioner uses a flammable refrigerant for refrigeration; if the running system of the air conditioner is detected to be abnormal, controlling the air conditioner to stop; and if the normal operation of the air conditioner is detected, controlling the normal operation of the air conditioner. The invention solves the problem of lower safety when the air conditioner using the flammable refrigerant in the related art operates.
Description
Technical field
The present invention relates to air-conditioner field, in particular to a kind of control method and device of air-conditioner.
Background technology
Existing air-conditioner is used the cold-producing mediums such as R22, R410A, R134A mostly.R22, R410A etc. are non-clean cold-producing medium, and atmospheric ozone layer is had to destruction, therefore, if the above-mentioned cold-producing medium of a large amount of use of air-conditioner easily produces greenhouse effects.
At present, the lower cold-producing medium of global warming up trend (Global Warming Potential, referred to as GWP) such as R290 (being propane), R32 is applied to air-conditioner as the substitute of the cold-producing mediums such as R22, R410A, R134A.Yet R290, R32 etc. belongs to combustible refrigerant, the security requirement during therefore to this kind of air-conditioner operation is higher.Once this is that while causing air-conditioner operation, security is lower because air-conditioner generation leakage of refrigerant fault easily produces the potential safety hazards such as burning, blast.
While moving for the air-conditioner that uses combustible refrigerant in correlation technique, the lower problem of security, not yet proposes effective solution at present.
Summary of the invention
Main purpose of the present invention is to provide a kind of control method and device of air-conditioner, to solve the lower problem of air-conditioner when operation security of using combustible refrigerant in correlation technique.
To achieve these goals, according to an aspect of the present invention, provide a kind of control method of air-conditioner.The method comprises: whether the operational system that detects air-conditioner is abnormal, and wherein, air-conditioner is used combustible refrigerant to freeze; If it is abnormal the operational system of air-conditioner to be detected, controls air-conditioner and shut down; And if the operational system that air-conditioner detected is normal, controls air-conditioner and normally move.
Further, operational system comprises condensator outlet pipe, evaporator pipe and air outlet, and whether the operational system that detects air-conditioner comprises extremely: judge in temperature, the temperature of evaporator pipe and the temperature of air outlet of condensator outlet pipe whether any one or a plurality of changing value in Preset Time section are less than the first preset value; If judge in temperature, the temperature of evaporator pipe and the temperature of air outlet of condensator outlet pipe any one or a plurality of changing value in Preset Time section is less than the first preset value, determine that operational system is abnormal; And if judge in temperature, the temperature of evaporator pipe and the temperature of air outlet of condensator outlet pipe any one or a plurality of changing value in Preset Time section is all not less than the first preset value, determine that operational system is normal.
Further, operational system comprises compressor, and whether the operational system that detects air-conditioner comprises extremely: judge whether compressor is opening; If judge compressor, be opening, whether the firing current that detects compressor is less than the second preset value; If detect the firing current of compressor, be less than the second preset value, determine that operational system is abnormal; And if the firing current that detects compressor is not less than the second preset value, determines that operational system is normal, and/or judge whether compressor is stopped status; If judge compressor, be stopped status, whether the shutdown electric current that detects compressor is greater than the 3rd preset value; If detect the shutdown electric current of compressor, be greater than the 3rd preset value, determine that operational system is abnormal; And if the shutdown electric current that detects compressor is not more than the 3rd preset value, determine that operational system is normal.
Further, before whether the operational system that detects air-conditioner is abnormal, control method also comprises: detect operational system and whether be operated in refrigeration mode, wherein, if operational system detected, be operated in refrigeration mode, whether the operational system that detects air-conditioner is abnormal; If operational system detected, be not operated in refrigeration mode, first controlling run system enters refrigeration mode, more whether detect the operational system of air-conditioner abnormal.
Further, after definite operational system is abnormal, control method also comprises: control air-conditioner and enter the fluorine pattern of receiving; And judge whether air-conditioner has completed receipts fluorine, and wherein, if judge air-conditioner, completed receipts fluorine, control air-conditioner and shut down.
To achieve these goals, according to a further aspect in the invention, provide a kind of control device of air-conditioner.This device comprises: the first detecting unit, and whether abnormal for detection of the operational system of air-conditioner, wherein, air-conditioner is used combustible refrigerant to freeze; The first control module, when abnormal for the operational system air-conditioner being detected, control air-conditioner and shuts down; And second control module, when normal for the operational system air-conditioner being detected, control air-conditioner and normally move.
Further, operational system comprises condensator outlet pipe, evaporator pipe and air outlet, the first detecting unit comprises: the first judge module, for judging whether temperature, the temperature of evaporator pipe and the temperature of air outlet any one or a plurality of changing value in Preset Time section of condensator outlet pipe is less than the first preset value; The first determination module, for when judging the temperature of condensator outlet pipe, the temperature of evaporator pipe and the temperature of air outlet any one or a plurality of changing value in Preset Time section and be less than the first preset value, determines that operational system is abnormal; And second determination module, for when judging the temperature of condensator outlet pipe, the temperature of evaporator pipe and the temperature of air outlet any one or a plurality of changing value in Preset Time section and be all not less than the first preset value, determine that operational system is normal.
Further, operational system comprises compressor, and the first detecting unit comprises: the second judge module, for judging whether compressor is opening; First detection module, for when judging compressor and be opening, whether the firing current that detects compressor is less than the second preset value; The 3rd determination module, while being less than the second preset value for the firing current detecting compressor, determines that operational system is abnormal; And the 4th determination module, while being not less than the second preset value for the firing current detecting compressor, determine that operational system is normal, and/or the 3rd judge module, for judging whether compressor is stopped status; The second detection module, for when judging compressor and be stopped status, whether the shutdown electric current that detects compressor is greater than the 3rd preset value; The 5th determination module, while being greater than the 3rd preset value for the shutdown electric current detecting compressor, determines that operational system is abnormal; And the 6th determination module, while being not more than the 3rd preset value for the shutdown electric current detecting compressor, determine that operational system is normal.
Further, the control device of this air-conditioner also comprises: the second detecting unit, before whether abnormal for the operational system detecting air-conditioner, detect operational system and whether be operated in refrigeration mode, wherein, the first detecting unit is also for when operational system being detected and be operated in refrigeration mode, and whether the operational system that detects air-conditioner is abnormal; The 3rd control module, for when operational system being detected and be not operated in refrigeration mode, whether first controlling run system enters refrigeration mode, more abnormal for detection of the operational system of air-conditioner by the first detecting unit.
Further, the control device of this air-conditioner also comprises: the 4th control module, and for after definite operational system is abnormal, controls air-conditioner and enter the fluorine pattern of receiving; And judging unit, for judging whether air-conditioner has completed receipts fluorine, wherein, the first control module also, for having completed while receiving fluorine judging air-conditioner, is controlled air-conditioner and is shut down.
By the present invention, adopt the operational system of detection air-conditioner whether abnormal, wherein, air-conditioner is used combustible refrigerant to freeze; If it is abnormal the operational system of air-conditioner to be detected, controls air-conditioner and shut down; And if the operational system that air-conditioner detected is normal, controlling air-conditioner normally moves, the lower problem of security while having solved the air-conditioner operation of using combustible refrigerant in correlation technique, and then reached the effect that improves operating air-conditioner security.
Accompanying drawing explanation
The accompanying drawing that forms the application's a part is used to provide a further understanding of the present invention, and schematic description and description of the present invention is used for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is according to the schematic diagram of the control device of the air-conditioner of first embodiment of the invention;
Fig. 2 is according to the schematic diagram of the control device of the air-conditioner of second embodiment of the invention;
Fig. 3 is according to the flow chart of the control method of the air-conditioner of first embodiment of the invention; And
Fig. 4 is according to the flow chart of the control method of the air-conditioner of second embodiment of the invention.
The specific embodiment
It should be noted that, in the situation that not conflicting, embodiment and the feature in embodiment in the application can combine mutually.Describe below with reference to the accompanying drawings and in conjunction with the embodiments the present invention in detail.
In order to make those skilled in the art better understand the present invention program, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the embodiment of a part of the present invention, rather than whole embodiment.Embodiment based in the present invention, does not make the every other embodiment obtaining under creative work prerequisite those of ordinary skills, all should belong to protection scope of the present invention.
It should be noted that, the term " first " in description of the present invention and claims and above-mentioned accompanying drawing, " second " etc. are for distinguishing similar object, and needn't be for describing specific order or precedence.The data that should be appreciated that such use suitably can exchanged in situation, so as embodiments of the invention described herein can with except diagram here or describe those order enforcement.In addition, term " comprises " and " having " and their any distortion, is intended to be to cover not exclusive comprising.
According to embodiments of the invention, a kind of control device of air-conditioner is provided, the control device of this air-conditioner is for before air-conditioner normally freezes or heats, and whether the operational system that detects air-conditioner is abnormal, thus the security that improves operating air-conditioner.
Fig. 1 is according to the schematic diagram of the control device of the air-conditioner of first embodiment of the invention.
As shown in Figure 1, this device comprises: the first detecting unit 10, the first control module 20 and the second control module 30.
Whether the first detecting unit 10 is abnormal for detection of the operational system of air-conditioner.
Wherein, air-conditioner can be used combustible refrigerant to freeze.Because the operational system of air-conditioner can comprise the refrigerating operaton system of air-conditioner and the heating operation system of air-conditioner, whether the operational system that therefore detects air-conditioner can comprise is extremely detected the refrigerating operaton system of air-conditioner and whether the heating operation system of air-conditioner is abnormal.
Take refrigeration system as example, because this refrigeration system can comprise compressor, condenser, pipeline and evaporimeter, and cold-producing medium is realized refrigeration by carry out gaseous state and a series of conversion such as liquid state, high pressure and low pressure and circulation etc. in above-mentioned compressor, condenser, pipeline and evaporimeter, therefore can be whether abnormal by one or more operational system that whether extremely detects air-conditioner detecting in compressor, condenser, pipeline and evaporimeter.Wherein, the indoor set part that compressor and condenser are air-conditioner, the outdoor machine part that evaporimeter is air-conditioner, pipeline is the communication means being connected between condenser and evaporimeter.Condenser has refrigerant outlet pipe, and evaporimeter has refrigerant inlet pipe, and condenser is connected to pipeline by outlet, and evaporimeter is connected to pipeline by inlet tube.
If the first control module 20 is abnormal for the operational system of air-conditioner being detected, controls air-conditioner and shut down.
Particularly, when detecting compressor, condenser, when one or more in pipeline and evaporimeter is abnormal, show that air-conditioner exists the risk of revealing combustible refrigerant, if and that combustible refrigerant is leaked to is indoor, can indoorly there is the electrical equipment such as air-conditioner and electricity sparking because of this, electricity sparking can cause combustible refrigerant burning, even blast, therefore, compressor detected, condenser, when one or more in pipeline and evaporimeter is abnormal, by controlling air-conditioner shutdown, can cut off risk source, and because air-conditioner is shut down, therefore can not produce electricity sparking, thereby can be because the sparking of air-conditioner electricity causes combustible refrigerant burning, even blast, thereby improve the security of operating air-conditioner.
Preferably, when the operational system that air-conditioner detected is abnormal, can show the corresponding sign of fault type, this sign can be numeral or alphabetical.Like this, can judge exactly the abnormal position of air-conditioner.
Further, when controlling air-conditioner and shutting down, other electrical equipment that can control in the Circuits System at air-conditioner place are shut down.Like this, can prevent that other electrical equipment from, because electricity sparking causes combustible refrigerant burning, even exploding, thus the security that improves the Circuits System at operating air-conditioner place.
In addition, control air-conditioner shutdown and can prevent that combustible refrigerant from continuing to reveal, thereby can prevent risk source extension, and then the security that improves operating air-conditioner.
If the second control module 30 is normal for the operational system of air-conditioner being detected, controls air-conditioner and normally move.
When detecting compressor, condenser, pipeline and evaporimeter when all normal, show that air-conditioner does not exist the risk of revealing combustible refrigerant, thereby can not cause combustible refrigerant burning, even blast.Therefore, can control air-conditioner normally moves.
Pass through the embodiment of the present invention; because the operational system air-conditioner being detected is when abnormal, can controls air-conditioner and shut down, thereby can avoid because the sparking of air-conditioner electricity causes combustible refrigerant burning; even explode, therefore reached the effect of the security that improves operating air-conditioner.
Preferably, whether the first detecting unit 10 can under the debugging mode of air-conditioner, to detect the operational system of air-conditioner abnormal.So-called debugging mode refers to the mode of operation of this normal operational mode of simulation before air-conditioner enters normal operational mode.Particularly, before each start, or whether the operational system of an air-conditioner of each preset time period detection is abnormal, wherein, when the operational system that air-conditioner detected is normal, can first control air-conditioner and exit debugging mode, at control air-conditioner, enter normal operation mode.Like this, can find in time that whether the operational system of air-conditioner is abnormal, thus the security that improves operating air-conditioner.
Preferably, when the operational system that air-conditioner detected is abnormal, whether the outer blower fan that can detect air-conditioner is abnormal.Particularly, first, whether the rotating speed in the time of can detecting outer blower fan unlatching is zero, and then, if the rotating speed while detecting outer blower fan unlatching is zero, blower fan is abnormal; If the rotating speed while detecting outer blower fan unlatching is non-vanishing, can open time set, and after timer timing a period of time, whether the rotating speed that judges blower fan is less than preset rotation speed value, whether the rotating speed that for example judges blower fan is less than 300 turns per minute, wherein, if judge the rotating speed of blower fan, is less than preset rotation speed value, blower fan is abnormal, otherwise blower fan is normal.It should be noted that, when blower fan is abnormal, controls air-conditioner and shut down, when blower fan is normal, controls air-conditioner and normally move.
Preferably, when the operational system that air-conditioner detected is abnormal, whether the temperature sensor that can detect air-conditioner is abnormal.Wherein, temperature sensor can comprise the temperature sensor being arranged on condenser and be arranged on the temperature sensor on evaporimeter.Particularly, can be in continuous time section (for example, can be in continuous 30s) whether the mean value of the temperature of detected temperatures sensor sample meet the following conditions: 1) whether this mean value is less than default minimum, 2) whether this mean value be greater than default maximum.Wherein, at this mean value, satisfy condition 1) or satisfy condition 2) time, judge the abnormality of temperature sensors of air-conditioner, otherwise it is normal to judge the temperature sensor of air-conditioner.It should be noted that, when the abnormality of temperature sensors of air-conditioner, control air-conditioner and shut down, when the temperature sensor of air-conditioner is normal, controls air-conditioner and normally move.In addition, above-mentioned continuous time, section can obtain by timer timing, if in this section continuous time condition 1) and condition 2) all do not meet, by above-mentioned timer zero clearing.After by above-mentioned timer zero clearing, can reclocking, and whether detect the temperature sensor of air-conditioner abnormal.
Fig. 2 is according to the schematic diagram of the control device of the air-conditioner of second embodiment of the invention.
As shown in Figure 2, this embodiment can be used as preferred embodiment embodiment illustrated in fig. 1, the control device of the air-conditioner of this embodiment comprises the first detecting unit 10, the first control module 20 and the second control module 30 of the first embodiment, wherein, the first detecting unit 10 comprises the first judge module 101, the first determination module 102 and the second determination module 103.
Identical with the first embodiment of the effect of the first control module 20 and the second control module 30, does not repeat them here.
It should be noted that, in embodiments of the present invention, operational system can comprise condensator outlet pipe, evaporator pipe and air outlet.
The first judge module 101 is for judging whether temperature, the temperature of evaporator pipe and the temperature of air outlet any one or a plurality of changing value in Preset Time section of condensator outlet pipe is less than the first preset value.
It should be noted that, the first preset value can comprise one or more, wherein, the changing value of the temperature of the changing value of the temperature of the changing value of the temperature of condensator outlet pipe in Preset Time section, evaporator pipe in Preset Time section and air outlet in Preset Time section can be distinguished the first corresponding different preset values.
If the first determination module 102 is less than the first preset value for judging temperature, the temperature of evaporator pipe and the temperature of air outlet any one or a plurality of changing value in Preset Time section of condensator outlet pipe, determine that operational system is abnormal.
Preferably, when definite operational system is abnormal, can show the abnormal corresponding failure code of operational system, wherein can use two eight to show this failure code.For example, the operational system of air-conditioner extremely can corresponding failure code A, and the failure code that condensator outlet pipe, evaporator pipe and air outlet are corresponding can be respectively A1, A2, A3.
If the second determination module 103 is all not less than the first preset value for judging temperature, the temperature of evaporator pipe and the temperature of air outlet any one or a plurality of changing value in Preset Time section of condensator outlet pipe, determine that operational system is normal.
If judge in temperature, the temperature of evaporator pipe and the temperature of air outlet of condensator outlet pipe any one or a plurality of changing value in Preset Time section is all greater than or equal to the first preset value, determine that operational system is normal.
Pass through the embodiment of the present invention, owing to can only judging in temperature, the temperature of evaporator pipe and the temperature of air outlet of condensator outlet pipe that whether any one or a plurality of changing value in Preset Time section are less than the first preset value, have therefore simplified the whether abnormal process of operational system that detects air-conditioner.
Preferably, in embodiments of the present invention, because operational system can comprise compressor, therefore whether the first detecting unit 10 can also be abnormal for detection of compressor.Wherein, whether the first detecting unit 10 detection compressors can comprise mode extremely:
Mode one, only whether by detecting compressor, at the firing current of opening, to detect operational system abnormal.Particularly, the first detecting unit 10 can comprise the second judge module, first detection module, the 3rd determination module and the 4th determination module.First, the second judge module can be for detection of judging whether compressor is opening; Secondly, if first detection module can be opening for judging compressor, whether the firing current that detects compressor is less than the second preset value; Then, if the 3rd determination module can be less than the second preset value for detecting the firing current of compressor, determine that operational system is abnormal; If the 4th determination module can be not less than the second preset value for detecting the firing current of compressor, determine that operational system is normal.Whether the firing current that wherein, can use the first current sensor to detect compressor is less than the second preset value.
Mode two, only whether by detecting compressor, at the shutdown electric current of stopped status, to detect operational system abnormal.Particularly, the first detecting unit 10 can comprise the 3rd judge module, the second detection module, the 5th determination module and the 6th determination module.First, the 3rd judge module can be for judging whether compressor is stopped status; Secondly, if the second detection module can be stopped status for judging compressor, whether the shutdown electric current that detects compressor is greater than the 3rd preset value; Then, if the 5th determination module can be greater than the 3rd preset value for detecting the shutdown electric current of compressor, determine that operational system is abnormal; If the 6th determination module can be not more than the 3rd preset value for detecting the shutdown electric current of compressor, determine that operational system is normal.Whether the firing current that wherein, can use the second current sensor to detect compressor is less than the second preset value.
Mode three, by detect compressor at the firing current of opening and whether detect operational system at the shutdown electric current of stopped status abnormal simultaneously.The first detecting unit 10 can comprise the second judge module, first detection module, the 3rd determination module and the 4th determination module and the 3rd judge module, the second detection module, the 5th determination module and the 6th determination module.Wherein, the effect of the second judge module, first detection module, the 3rd determination module and the 4th determination module is with the effect of the respective modules in mode one, the effect of the 3rd judge module, the second detection module, the 5th determination module and the 6th determination module, with the effect of the respective modules in mode two, does not repeat them here.
In the above embodiment of the present invention, this control device can also comprise: the second detecting unit and the 3rd control module.The second detecting unit can be whether abnormal for the operational system detecting air-conditioner before, detect operational system and whether be operated in refrigeration mode, wherein, if the first detecting unit 10 is also operated in refrigeration mode for operational system being detected, whether the operational system that detects air-conditioner is abnormal; If the 3rd control module is not operated in refrigeration mode for operational system being detected, whether first controlling run system enters refrigeration mode, more abnormal for detection of the operational system of air-conditioner by the first detecting unit 10.
In the above embodiment of the present invention, this control device can also comprise: the 4th control module and judging unit.
First, the 4th control module can, for after definite operational system is abnormal, is controlled air-conditioner and enter the fluorine pattern of receiving.Wherein, when air-conditioner is operated in while receiving fluorine pattern, can be by the refrigerant collecting beyond the off-premises station of air-conditioner in off-premises station, preferably, and when compressor in off-premises station is normal, can be by the refrigerant collecting in off-premises station in compressor.
Preferably, when control air-conditioner enters receipts fluorine pattern, can control the indoor exhaust fan at air-conditioner place and open.Like this, combustible refrigerant that can be will leak into indoor is got rid of, and then when air-conditioner repair also moves after well again, the security that can improve air-conditioner.
Then, judging unit can be for judging whether air-conditioner has completed receipts fluorine.Particularly, can judge whether air-conditioner has completed receipts fluorine: mode one by two kinds of modes, can judge and whether reach default operation time the running time of receiving fluorine pattern, if judge the running time of receipts fluorine pattern, reached default operation time, judged air-conditioner and completed receipts fluorine; Mode two, if use off-premises station, receive fluorine, can detect the pressure of cold-producing medium in the miscellaneous part except off-premises station of cold-producing medium institute circular flow warp, for example, the pressure of the cold-producing medium in can signal piping, wherein, when in the miscellaneous part except off-premises station that detects cold-producing medium institute circular flow warp, the pressure of cold-producing medium is less than preset pressure value, judge air-conditioner and completed receipts fluorine, otherwise air-conditioner does not complete receipts fluorine.And if use compressor to receive fluorine, can detect the pressure of cold-producing medium in the miscellaneous part except compressor of cold-producing medium institute circular flow warp, the testing process of the concrete testing process of pressure pressure during with use off-premises station receipts fluorine, does not repeat them here.
Wherein, if the first control module 20 can also complete receipts fluorine for judging air-conditioner, control air-conditioner and shut down.And when air-conditioner does not complete receipts fluorine, can control air-conditioner and continue to receive fluorine.It should be noted that; if controlling the indoor exhaust fan unlatching of having controlled air-conditioner place when air-conditioner enters receipts fluorine pattern; after controlling air-conditioner shutdown; can control this exhaust fan and continue operation a period of time; can will leak into the cleaner of indoor combustible refrigerant eliminating like this, thus safer when air-conditioner moves again.
According to embodiments of the invention, a kind of control method of air-conditioner is provided, the control method of this air-conditioner is for before air-conditioner normally freezes or heats, and whether the operational system that detects air-conditioner is abnormal, thus the security that improves operating air-conditioner.The control method of this air-conditioner may operate on computer-processing equipment.It should be noted that, the control method of the air-conditioner that the embodiment of the present invention provides can be by the embodiment of the present invention the control device of air-conditioner carry out, the control device of the air-conditioner of the embodiment of the present invention also can be for carrying out the control method of the air-conditioner of the embodiment of the present invention.
Fig. 3 is according to the flow chart of the control method of the air-conditioner of first embodiment of the invention.
As shown in Figure 3, the method comprises that following step S302 is to step S306:
Step S302, whether the operational system that detects air-conditioner is abnormal.
Wherein, air-conditioner can be used combustible refrigerant to freeze.Because the operational system of air-conditioner can comprise the refrigerating operaton system of air-conditioner and the heating operation system of air-conditioner, whether the operational system that therefore detects air-conditioner can comprise is extremely detected the refrigerating operaton system of air-conditioner and whether the heating operation system of air-conditioner is abnormal.
Take refrigeration system as example, because this refrigeration system can comprise compressor, condenser, pipeline and evaporimeter, and cold-producing medium is realized refrigeration by carry out gaseous state and a series of conversion such as liquid state, high pressure and low pressure and circulation etc. in above-mentioned compressor, condenser, pipeline and evaporimeter, therefore can be whether abnormal by one or more operational system that whether extremely detects air-conditioner detecting in compressor, condenser, pipeline and evaporimeter.Wherein, the indoor set part that compressor and condenser are air-conditioner, the outdoor machine part that evaporimeter is air-conditioner, pipeline is the communication means being connected between condenser and evaporimeter.Condenser has refrigerant outlet pipe, and evaporimeter has refrigerant inlet pipe, and condenser is connected to pipeline by outlet, and evaporimeter is connected to pipeline by inlet tube.
Step S304, if it is abnormal the operational system of air-conditioner to be detected, controls air-conditioner and shuts down.
Particularly, when detecting compressor, condenser, when one or more in pipeline and evaporimeter is abnormal, show that air-conditioner exists the risk of revealing combustible refrigerant, if and that combustible refrigerant is leaked to is indoor, can indoorly there is the electrical equipment such as air-conditioner and electricity sparking because of this, electricity sparking can cause combustible refrigerant burning, even blast, therefore, compressor detected, condenser, when one or more in pipeline and evaporimeter is abnormal, by controlling air-conditioner shutdown, can cut off risk source, and because air-conditioner is shut down, therefore can not produce electricity sparking, thereby can be because the sparking of air-conditioner electricity causes combustible refrigerant burning, even blast, thereby improve the security of operating air-conditioner.
Preferably, when the operational system that air-conditioner detected is abnormal, can show the corresponding sign of fault type, this sign can be numeral or alphabetical.Like this, can judge exactly the abnormal position of air-conditioner.
Further, when controlling air-conditioner and shutting down, other electrical equipment that can control in the Circuits System at air-conditioner place are shut down.Like this, can prevent other electrical equipment electricity sparkings and cause combustible refrigerant burning, even blast, thereby the security that improves the Circuits System at operating air-conditioner place.
In addition, control air-conditioner shutdown and can prevent that combustible refrigerant from continuing to reveal, thereby can prevent risk source extension, and then the security that improves operating air-conditioner.
Step S306, if it is normal the operational system of air-conditioner to be detected, controls air-conditioner and normally moves.
When detecting compressor, condenser, pipeline and evaporimeter when all normal, show that air-conditioner does not exist the risk of revealing combustible refrigerant, thereby can not cause combustible refrigerant burning, even blast.Therefore, can control air-conditioner normally moves.
Pass through the embodiment of the present invention; because the operational system air-conditioner being detected is when abnormal, can controls air-conditioner and shut down, thereby can avoid because the sparking of air-conditioner electricity causes combustible refrigerant burning; even explode, therefore reached the effect of the security that improves operating air-conditioner.
Preferably, whether extremely can under the debugging mode of air-conditioner, detect the operational system of air-conditioner.So-called debugging mode refers to the mode of operation of this normal operational mode of simulation before air-conditioner enters normal operational mode.Particularly, before each start, or whether the operational system of an air-conditioner of each preset time period detection is abnormal, wherein, when the operational system that air-conditioner detected is normal, can first control air-conditioner and exit debugging mode, at control air-conditioner, enter normal operation mode.Like this, can find in time that whether the operational system of air-conditioner is abnormal, thus the security that improves operating air-conditioner.
Preferably, when the operational system that air-conditioner detected is abnormal, whether the outer blower fan that can detect air-conditioner is abnormal.Particularly, first, whether the rotating speed in the time of can detecting outer blower fan unlatching is zero, and then, if the rotating speed while detecting outer blower fan unlatching is zero, blower fan is abnormal; If the rotating speed while detecting outer blower fan unlatching is non-vanishing, can open time set, and after timer timing a period of time, whether the rotating speed that judges blower fan is less than preset rotation speed value, whether the rotating speed that for example judges blower fan is less than 300 turns per minute, wherein, if judge the rotating speed of blower fan, is less than preset rotation speed value, blower fan is abnormal, otherwise blower fan is normal.It should be noted that, when blower fan is abnormal, controls air-conditioner and shut down, when blower fan is normal, controls air-conditioner and normally move.
Preferably, when the operational system that air-conditioner detected is abnormal, whether the temperature sensor that can detect air-conditioner is abnormal.Wherein, temperature sensor can comprise the temperature sensor being arranged on condenser and be arranged on the temperature sensor on evaporimeter.Particularly, can be in continuous time section (for example, can be in continuous 30s) whether the mean value of the temperature of detected temperatures sensor sample meet the following conditions: 1) whether this mean value is less than default minimum, 2) whether this mean value be greater than default maximum.Wherein, at this mean value, satisfy condition 1) or satisfy condition 2) time, judge the abnormality of temperature sensors of air-conditioner, otherwise it is normal to judge the temperature sensor of air-conditioner.It should be noted that, when the abnormality of temperature sensors of air-conditioner, control air-conditioner and shut down, when the temperature sensor of air-conditioner is normal, controls air-conditioner and normally move.In addition, above-mentioned continuous time, section can obtain by timer timing, if in this section continuous time condition 1) and condition 2) all do not meet, by above-mentioned timer zero clearing.After by above-mentioned timer zero clearing, can reclocking, and whether detect the temperature sensor of air-conditioner abnormal.
Fig. 4 is according to the flow chart of the control method of the air-conditioner of second embodiment of the invention.
As shown in Figure 4, the control method of this air-conditioner comprises that following step S402 is to step S410, and this embodiment can be used as preferred embodiment embodiment illustrated in fig. 3.
It should be noted that, in embodiments of the present invention, operational system can comprise condensator outlet pipe, evaporator pipe and air outlet.
Step S402, judges in temperature, the temperature of evaporator pipe and the temperature of air outlet of condensator outlet pipe whether any one or a plurality of changing value in Preset Time section are less than the first preset value.
It should be noted that, the first preset value can comprise one or more, wherein, the changing value of the temperature of the changing value of the temperature of the changing value of the temperature of condensator outlet pipe in Preset Time section, evaporator pipe in Preset Time section and air outlet in Preset Time section can be distinguished the first corresponding different preset values.
Step S404, if judge in temperature, the temperature of evaporator pipe and the temperature of air outlet of condensator outlet pipe any one or a plurality of changing value in Preset Time section is less than the first preset value, determines that operational system is abnormal.
Preferably, when definite operational system is abnormal, can show the abnormal corresponding failure code of operational system, wherein can use two eight to show this failure code.For example, the operational system of air-conditioner extremely can corresponding failure code A, and the failure code that condensator outlet pipe, evaporator pipe and air outlet are corresponding can be respectively A1, A2, A3.
Step S406, the step S304 with embodiment illustrated in fig. 3, does not repeat them here.
Step S408, if judge in temperature, the temperature of evaporator pipe and the temperature of air outlet of condensator outlet pipe any one or a plurality of changing value in Preset Time section is all not less than the first preset value, determines that operational system is normal.
If judge in temperature, the temperature of evaporator pipe and the temperature of air outlet of condensator outlet pipe any one or a plurality of changing value in Preset Time section is all greater than or equal to the first preset value, determine that operational system is normal.
Step S410, the step S306 with embodiment illustrated in fig. 3, does not repeat them here.
Pass through the embodiment of the present invention, owing to can only judging in temperature, the temperature of evaporator pipe and the temperature of air outlet of condensator outlet pipe that whether any one or a plurality of changing value in Preset Time section are less than the first preset value, have therefore simplified the whether abnormal step of operational system that detects air-conditioner.
Preferably, in embodiments of the present invention, because operational system can comprise compressor, whether the operational system that therefore detects air-conditioner can comprise extremely: whether extremely detect compressor.Wherein, detect compressor and whether extremely can comprise mode:
Mode one, only whether by detecting compressor, at the firing current of opening, to detect operational system abnormal.Particularly, first, detect and judge whether compressor is opening; Secondly, if judge compressor, be opening, whether the firing current that detects compressor is less than the second preset value; Then, if detect the firing current of compressor, be less than the second preset value, determine that operational system is abnormal; If detect the firing current of compressor, be not less than the second preset value, determine that operational system is normal.Whether the firing current that wherein, can use the first current sensor to detect compressor is less than the second preset value.
Mode two, only whether by detecting compressor, at the shutdown electric current of stopped status, to detect operational system abnormal.Particularly, first, judge whether compressor is stopped status; Secondly, if judge compressor, be stopped status, whether the shutdown electric current that detects compressor is greater than the 3rd preset value; Then, if detect the shutdown electric current of compressor, be greater than the 3rd preset value, determine that operational system is abnormal; If detect the shutdown electric current of compressor, be not more than the 3rd preset value, determine that operational system is normal.Whether the firing current that wherein, can use the second current sensor to detect compressor is less than the second preset value.
Mode three, by detect compressor at the firing current of opening and whether detect operational system at the shutdown electric current of stopped status abnormal simultaneously.Wherein, whether detecting compressor, at the firing current of opening, to detect operational system abnormal similar with mode one, detect compressor the shutdown electric current of stopped status detect operational system whether extremely and mode two similar, do not repeat them here.
In the above embodiment of the present invention, before whether the operational system that detects air-conditioner is abnormal, this control method can also comprise: detect operational system and whether be operated in refrigeration mode, wherein, if operational system detected, be operated in refrigeration mode, whether the operational system that detects air-conditioner is abnormal; If operational system detected, be not operated in refrigeration mode, first controlling run system enters refrigeration mode, more whether detect the operational system of air-conditioner abnormal.
In the above embodiment of the present invention, after definite operational system is abnormal, this control method can also comprise:
First, control air-conditioner and enter the fluorine pattern of receiving.Wherein, when air-conditioner is operated in while receiving fluorine pattern, can be by the refrigerant collecting beyond the off-premises station of air-conditioner in off-premises station, preferably, and when compressor in off-premises station is normal, can be by the refrigerant collecting in off-premises station in compressor.
Preferably, when control air-conditioner enters receipts fluorine pattern, can control the indoor exhaust fan at air-conditioner place and open.Like this, combustible refrigerant that can be will leak into indoor is got rid of, and then when air-conditioner repair also moves after well again, the security that can improve air-conditioner.
Then, judge whether air-conditioner has completed receipts fluorine.Particularly, can judge whether air-conditioner has completed receipts fluorine: mode one by two kinds of modes, can judge and whether reach default operation time the running time of receiving fluorine pattern, if judge the running time of receipts fluorine pattern, reached default operation time, judged air-conditioner and completed receipts fluorine; Mode two, if use off-premises station, receive fluorine, can detect the pressure of cold-producing medium in the miscellaneous part except off-premises station of cold-producing medium institute circular flow warp, for example, the pressure of the cold-producing medium in can signal piping, wherein, when in the miscellaneous part except off-premises station that detects cold-producing medium institute circular flow warp, the pressure of cold-producing medium is less than preset pressure value, judge air-conditioner and completed receipts fluorine, otherwise air-conditioner does not complete receipts fluorine.And if use compressor to receive fluorine, can detect the pressure of cold-producing medium in the miscellaneous part except compressor of cold-producing medium institute circular flow warp, the testing process of the concrete testing process of pressure pressure during with use off-premises station receipts fluorine, does not repeat them here.
Wherein, if judge air-conditioner, completed receipts fluorine, controlled air-conditioner and shut down.And when air-conditioner does not complete receipts fluorine, can control air-conditioner and continue to receive fluorine.It should be noted that; if controlling the indoor exhaust fan unlatching of having controlled air-conditioner place when air-conditioner enters receipts fluorine pattern; after controlling air-conditioner shutdown; can control this exhaust fan and continue operation a period of time; can will leak into the cleaner of indoor combustible refrigerant eliminating like this, thus safer when air-conditioner moves again.
It should be noted that, in the step shown in the flow chart of accompanying drawing, can in the computer system such as one group of computer executable instructions, carry out, and, although there is shown logical order in flow process, but in some cases, can carry out shown or described step with the order being different from herein.
Obviously, those skilled in the art should be understood that, above-mentioned each module of the present invention or each step can realize with general calculation element, they can concentrate on single calculation element, or be distributed on the network that a plurality of calculation elements form, alternatively, they can be realized with the executable program code of calculation element, thereby, they can be stored in storage device and be carried out by calculation element, or they are made into respectively to each integrated circuit modules, or a plurality of modules in them or step are made into single integrated circuit module to be realized.Like this, the present invention is not restricted to any specific hardware and software combination.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (10)
1. a control method for air-conditioner, is characterized in that, comprising:
Whether the operational system that detects air-conditioner is abnormal, and wherein, described air-conditioner is used combustible refrigerant to freeze;
If it is abnormal the operational system of described air-conditioner to be detected, controls described air-conditioner and shut down; And
If it is normal the operational system of described air-conditioner to be detected, controls described air-conditioner and normally move.
2. the control method of air-conditioner according to claim 1, is characterized in that, described operational system comprises condensator outlet pipe, evaporator pipe and air outlet, and whether the operational system that detects air-conditioner comprises extremely:
Judge in temperature, the temperature of described evaporator pipe and the temperature of described air outlet of described condensator outlet pipe whether any one or a plurality of changing value in Preset Time section are less than the first preset value;
If judge in temperature, the temperature of described evaporator pipe and the temperature of described air outlet of described condensator outlet pipe any one or a plurality of changing value in described Preset Time section is less than described the first preset value, determine that described operational system is abnormal; And
If judge in temperature, the temperature of described evaporator pipe and the temperature of described air outlet of described condensator outlet pipe any one or a plurality of changing value in described Preset Time section is all not less than described the first preset value, determine that described operational system is normal.
3. the control method of air-conditioner according to claim 1, is characterized in that, described operational system comprises compressor, and whether the operational system that detects air-conditioner comprises extremely:
Judge whether described compressor is opening;
If judge described compressor, be opening, whether the firing current that detects described compressor is less than the second preset value;
If detect the firing current of described compressor, be less than the second preset value, determine that described operational system is abnormal; And
If detect the firing current of described compressor, be not less than the second preset value, determine that described operational system is normal,
And/or
Judge whether described compressor is stopped status;
If judge described compressor, be stopped status, whether the shutdown electric current that detects described compressor is greater than the 3rd preset value;
If detect the shutdown electric current of described compressor, be greater than the 3rd preset value, determine that described operational system is abnormal; And
If detect the shutdown electric current of described compressor, be not more than the 3rd preset value, determine that described operational system is normal.
4. according to the control method of the air-conditioner described in any one in claims 1 to 3, it is characterized in that, before whether the operational system that detects described air-conditioner is abnormal, described control method also comprises:
Detect described operational system and whether be operated in refrigeration mode,
Wherein, if described operational system detected, be operated in refrigeration mode, whether the operational system that detects described air-conditioner is abnormal; If described operational system detected, be not operated in refrigeration mode, first control described operational system and enter described refrigeration mode, more whether detect the operational system of described air-conditioner abnormal.
5. the control method of air-conditioner according to claim 4, is characterized in that, after definite described operational system is abnormal, described control method also comprises:
Control described air-conditioner and enter the fluorine pattern of receiving; And
Judge whether described air-conditioner has completed receipts fluorine,
Wherein, if judge described air-conditioner, completed receipts fluorine, controlled described air-conditioner and shut down.
6. a control device for air-conditioner, is characterized in that, comprising:
The first detecting unit, whether abnormal for detection of the operational system of air-conditioner, wherein, described air-conditioner is used combustible refrigerant to freeze;
The first control module, when abnormal for the operational system described air-conditioner being detected, control described air-conditioner and shuts down; And
The second control module, when normal for the operational system described air-conditioner being detected, control described air-conditioner and normally moves.
7. the control device of air-conditioner according to claim 6, is characterized in that, described operational system comprises condensator outlet pipe, evaporator pipe and air outlet, and described the first detecting unit comprises:
The first judge module, for judging whether temperature, the temperature of described evaporator pipe and the temperature of described air outlet any one or a plurality of changing value in Preset Time section of described condensator outlet pipe is less than the first preset value;
The first determination module, for when judging the temperature of described condensator outlet pipe, the temperature of described evaporator pipe and the temperature of described air outlet any one or a plurality of changing value in described Preset Time section and be less than described the first preset value, determine that described operational system is abnormal; And
The second determination module, for when judging the temperature of described condensator outlet pipe, the temperature of described evaporator pipe and the temperature of described air outlet any one or a plurality of changing value in described Preset Time section and be all not less than described the first preset value, determine that described operational system is normal.
8. the control device of air-conditioner according to claim 6, is characterized in that, described operational system comprises compressor, and described the first detecting unit comprises:
The second judge module, for judging whether described compressor is opening;
First detection module, for when judging described compressor and be opening, whether the firing current that detects described compressor is less than the second preset value;
The 3rd determination module, while being less than the second preset value for the firing current detecting described compressor, determines that described operational system is abnormal; And
The 4th determination module, while being not less than the second preset value for the firing current detecting described compressor, determines that described operational system is normal,
And/or
The 3rd judge module, for judging whether described compressor is stopped status;
The second detection module, for when judging described compressor and be stopped status, whether the shutdown electric current that detects described compressor is greater than the 3rd preset value;
The 5th determination module, while being greater than the 3rd preset value for the shutdown electric current detecting described compressor, determines that described operational system is abnormal; And
The 6th determination module, while being not more than the 3rd preset value for the shutdown electric current detecting described compressor, determines that described operational system is normal.
9. according to the control device of the air-conditioner described in any one in claim 6 to 8, it is characterized in that, also comprise:
The second detecting unit, whether abnormal for the operational system detecting described air-conditioner before, detect described operational system and whether be operated in refrigeration mode,
Wherein, described the first detecting unit is also for when described operational system being detected and be operated in refrigeration mode, and whether the operational system that detects described air-conditioner is abnormal; Whether the 3rd control module, for when described operational system being detected and be not operated in refrigeration mode, first controls described operational system and enters described refrigeration mode, more abnormal for detection of the operational system of described air-conditioner by described the first detecting unit.
10. the control device of air-conditioner according to claim 9, is characterized in that, also comprises:
The 4th control module, for after definite described operational system is abnormal, controls described air-conditioner and enters the fluorine pattern of receiving; And
Judging unit, for judging whether described air-conditioner has completed receipts fluorine,
Wherein, described the first control module also, for having completed while receiving fluorine judging described air-conditioner, is controlled described air-conditioner and is shut down.
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