CN105180362A - Compressor overload protection control method and device as well as fixed-frequency air conditioner - Google Patents
Compressor overload protection control method and device as well as fixed-frequency air conditioner Download PDFInfo
- Publication number
- CN105180362A CN105180362A CN201510561334.0A CN201510561334A CN105180362A CN 105180362 A CN105180362 A CN 105180362A CN 201510561334 A CN201510561334 A CN 201510561334A CN 105180362 A CN105180362 A CN 105180362A
- Authority
- CN
- China
- Prior art keywords
- compressor
- conditioner
- air
- current value
- overload
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/10—Other safety measures
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses a compressor overload protection control method and device as well as a fixed-frequency air conditioner. The compressor overload protection control method comprises the following steps: detecting the state of a compressor in the air conditioner to obtain a detection result; judging whether the compressor has overload protection according to the detection result; if yes, controlling the draught fan of the air conditioner to stop operation. Through the compressor overload protection control method and device, the possibility that a system pipeline explodes easily caused by the situation that the compressor has overload protection is reduced.
Description
Technical field
The present invention relates to field of air conditioning, in particular to a kind of overload of compressor protecting control method and apparatus and air-conditioner with fixed frequency.
Background technology
Along with the development of society, the problem of the energy and environment is more and more outstanding, especially in the consumption of the energy and the pollution of environment and destruction.Effective solution how is taked also more and more to be subject to people's attention in these areas.At present, Chinese most domestic air conditioning adopts R22 conventional refrigerants, and more a kind of cold-producing medium applied in chlorofluoromethane refrigerant by R22 cold-producing medium, it is very large to depletion of the ozone layer, and the living environment of the serious harm mankind and overall ecological environment, will eliminate gradually.R410A cold-producing medium is a kind of cold-producing medium as R22 substitute, do not damage the ozone layer, make air-conditioning work efficiency high, but the global warming potential (GlobalWarmingPotentials of R22 cold-producing medium, R410A cold-producing medium, referred to as GWP) higher, Long-Time Service causes certain destruction to weather, belongs to the cold-producing medium of non-environmental protection.Therefore, the novel environment-friendly refrigerant that exploitation GWP value is lower, such as R32 cold-producing medium.R32 cold-producing medium does not only damage the ozone layer, and energy-conservation.But the saturation pressure of R32 cold-producing medium exceeds about 2.5% than R410A cold-producing medium, and R32 cold-producing medium has certain combustibility, spills, can cause certain danger when R32 cold-producing medium splits.Thus, for R32 cold-producing medium, prevent air-conditioning system from splitting the urgency of leakage far away higher than R22 cold-producing medium and R410A cold-producing medium.
At present, air-conditioning, the feedback function that such as fixed frequency air conditioner does not have overload of compressor to protect.When the compressor generation overload protection of air-conditioning; the main control computer of air-conditioning can not receive overload protection information; the high frequent of air-conditioning can be made like this to carry out overload protection, cause air-conditioning system pipeline to be subject to the impact of pulse continually, add the possibility of system pipeline booster.On the other hand, after compressor is out of service, and indoor and outdoor blower fan still remains in operation, and particularly when heating, there is the situation of blowing a cold wind over, and then affects the comfortableness of air-conditioner use.
For in correlation technique due to the problem of compressor generation overload protection easy initiating system pipeline booster, at present effective solution is not yet proposed.
Summary of the invention
Main purpose of the present invention is to provide a kind of overload of compressor protecting control method and apparatus and air-conditioner with fixed frequency, to solve the problem of compressor generation overload protection easy initiating system pipeline booster.
To achieve these goals, according to an aspect of the present invention, provide a kind of overload of compressor protecting control method, the method comprises: detect the state of compressor in air-conditioner, obtain testing result; Judge whether compressor occurs overload protection according to testing result; And if judge that overload protection appears in compressor, control the blower fan of air-conditioner out of service.
Further, if judge that overload protection appears in compressor, overload of compressor protecting control method also comprises: the number of times of overload protection appears in statistics compressor; Judge that compressor occurs whether the number of times of overload protection reaches preset times; And if judge that compressor occurs that the number of times of overload protection reaches preset times, then determine that compressor breaks down.
Further, after determining that compressor breaks down, overload of compressor protecting control method also comprises: export fault-signal, wherein, the overload protection that fault-signal is used to indicate compressor breaks down; Or, control compressor out of service.
Further, after determining that compressor breaks down, overload of compressor protecting control method also comprises: export information, wherein, information removes the fault of compressor for pointing out, information comprises any one information following: shutdown information, performs power-off or shutdown process for prompting to air-conditioner; And transform hint information, for pointing out, the operational mode of air-conditioner is changed.
Further, carry out detection to the state of compressor in air-conditioner to comprise: the complete machine electric current detecting air-conditioner, judge whether compressor occurs overload protection according to testing result: judge whether the first current value of air-conditioner is greater than the first pre-set current value, and judge whether the second current value of air-conditioner is less than the second pre-set current value, wherein, first current value of air-conditioner is the current value of the air-conditioner detected in the very first time, second current value of air-conditioner is the current value of the air-conditioner arrived in the second time detecting, second time was later than the very first time, first pre-set current value is less than the second pre-set current value, wherein, if judge that the first current value of air-conditioner is greater than the first pre-set current value and the second current value of air-conditioner is less than the second pre-set current value, then determine that overload protection appears in compressor.
Further, if judge that overload protection appears in compressor, overload of compressor protecting control method also comprises: the outdoor fan controlling air-conditioner is shut down; Control compressor shutdown; If air-conditioner is in refrigeration mode, control the indoor fan start of air-conditioner; If or air-conditioner is in heating mode, the indoor fan controlling air-conditioner stops.
Further, the air-conditioner in overload of compressor protecting control method is air-conditioner with fixed frequency.
To achieve these goals, according to a further aspect in the invention, provide a kind of overload of compressor protecting control device, this device comprises: detecting unit, for detecting the state of compressor in air-conditioner, obtains testing result; First judging unit, for judging according to testing result whether compressor occurs overload protection; And control unit, for when judging that overload protection appears in compressor, the blower fan controlling air-conditioner is out of service.
Further, overload of compressor protecting control device also comprises: statistic unit, and for when judging that overload protection appears in compressor, the number of times of overload protection appears in statistics compressor; Second judging unit, for judging that compressor occurs whether the number of times of overload protection reaches preset times; And determining unit, for when judging that compressor occurs that the number of times of overload protection reaches preset times, determine that compressor breaks down.
Further, overload of compressor protecting control device also comprises: output unit, and for after determining that compressor breaks down, export fault-signal, wherein, the overload protection that fault-signal is used to indicate compressor breaks down; Or control unit is also out of service for controlling compressor.
Further, overload of compressor protecting control device also comprises: output unit, for after determining that compressor breaks down, export information, wherein, information removes the fault of compressor for pointing out, information comprises any one information following: shutdown information, performs power-off or shutdown process for prompting to air-conditioner; Transform hint information, changes the operational mode of air-conditioner for pointing out.
Further, detecting unit is for detecting the complete machine electric current of air-conditioner, first judging unit is for judging whether the first current value of air-conditioner is greater than the first pre-set current value, and judge whether the second current value of air-conditioner is less than the second pre-set current value, wherein, first current value of air-conditioner is the current value of the air-conditioner detected in the very first time, second current value of air-conditioner is the current value of the air-conditioner arrived in the second time detecting, second time was later than the very first time, first pre-set current value is less than the second pre-set current value, wherein, if judge that the first current value of air-conditioner is greater than the first pre-set current value and the second current value of air-conditioner is less than the second pre-set current value, then determine that overload protection appears in compressor.
Further, control unit, also for when judging that overload protection appears in compressor, performs following control: the outdoor fan controlling air-conditioner is shut down; Control compressor shutdown; If air-conditioner is in refrigeration mode, control the indoor fan start of air-conditioner; If or air-conditioner is in heating mode, the indoor fan controlling air-conditioner stops.
Further, the air-conditioner of overload of compressor protecting control device is air-conditioner with fixed frequency.
To achieve these goals, according to a further aspect in the invention, additionally provide a kind of air-conditioner with fixed frequency, this air-conditioner with fixed frequency comprises any one overload of compressor protecting control device provided by the invention.
Pass through the present invention; adopt and the state of compressor in air-conditioner is detected; obtain testing result; then judge whether compressor occurs overload protection according to testing result; if judge that overload protection appears in compressor; the blower fan controlling air-conditioner is out of service, solves the problem due to compressor generation overload protection easy initiating system pipeline booster in prior art, and then reaches the effect of the possibility reducing compressor generation overload protection easy initiating system pipeline booster.
Accompanying drawing explanation
The accompanying drawing forming a application's part is used to provide a further understanding of the present invention, and schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the flow chart of the overload of compressor protecting control method according to the embodiment of the present invention;
Fig. 2 is the schematic diagram of overload of compressor protecting control device according to a first embodiment of the present invention;
Fig. 3 is the schematic diagram of overload of compressor protecting control device according to a second embodiment of the present invention; And
Fig. 4 is the schematic diagram of overload of compressor protecting control device according to a third embodiment of the present invention.
Detailed description of the invention
It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.Below with reference to the accompanying drawings and describe the present invention in detail in conjunction with the embodiments.
The application's scheme is understood better in order to make those skilled in the art person, below in conjunction with the accompanying drawing in the embodiment of the present application, technical scheme in the embodiment of the present application is clearly and completely described, obviously, described embodiment is only the embodiment of the application's part, instead of whole embodiments.Based on the embodiment in the application, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all should belong to the scope of the application's protection.
It should be noted that, term " first ", " second " etc. in the description of the application and claims and above-mentioned accompanying drawing are for distinguishing similar object, and need not be used for describing specific order or precedence.Should be appreciated that the data used like this can be exchanged, in the appropriate case so that the embodiment of the application described herein.In addition, term " comprises " and " having " and their any distortion, intention is to cover not exclusive comprising, such as, contain those steps or unit that the process of series of steps or unit, method, system, product or equipment is not necessarily limited to clearly list, but can comprise clearly do not list or for intrinsic other step of these processes, method, product or equipment or unit.
Fig. 1 is the flow chart of the overload of compressor protecting control method according to the embodiment of the present invention, and the method is used for controlling overload of compressor protection, and as shown in Figure 1, this overload of compressor protecting control method comprises the following steps:
Step S102, detects the state of compressor in air-conditioner, obtains testing result.
In air-conditioner, the mode of operation of compressor comprises overload protection, and non-overloaded protection.In air-conditioner compressor circuit on electric current and safe current meet preset relation; when electric current on the circuit of compressor in air-conditioner is greater than safe current; in air-conditioner, compressor carries out overload protection; the circuit of compressor can adopt automatic switch as overload protection device; such as, fuse.If in air-conditioner compressor circuit on electric current when being not more than safe current, then in air-conditioner, compressor normally works, and is non-overloaded protection.
The state of compressor in air-conditioner is detected, obtains testing result.The detection detecting voltage or the electric current that can comprise air-conditioner is carried out to the state of compressor.Preferably, the testing result obtaining complete machine electric current is detected to the complete machine electric current of air-conditioner, comprise the complete machine electric current that overload of compressor protection detects at the beginning, and the complete machine electric current that subsequent detection arrives.According to the result of the complete machine electric current detected, can analyze further, judge the mode of operation of compressor to it, also, whether compressor there is overload protection.
According to testing result, step S104, judges whether compressor occurs overload protection.
The state of compressor detects in air-conditioner, after obtaining testing result, judges whether compressor occurs overload protection according to testing result.First, judge whether the first current value of air-conditioner is greater than the first pre-set current value, preferably, first current value of air-conditioner is the current value of the air-conditioner detected in the very first time, the current value of the air-conditioner that the very first time detects is the complete machine current value of the air-conditioner that air-conditioner detects at the beginning, and the first pre-set current value is the normal postrun minimum running current of complete machine.Then, judge whether the second current value of air-conditioner is less than the second pre-set current value, preferably, second current value of air-conditioner is the current value of the air-conditioner arrived in the second time detecting, second time detecting to the current value of air-conditioner be the complete machine current value of the air-conditioner that air-conditioner subsequent detection arrives, the second predetermined current is the electric current that after compressor has a power failure, complete machine runs.
Second time was later than the very first time, and also, the second current value detects after the first current value.The first pre-set current value contrasted with the first current value is less than the second pre-set current value contrasted with the second current value.If judge that the first current value of air-conditioner is greater than the first pre-set current value, and when the second current value of air-conditioner is less than the second pre-set current value, then can determine that overload protection appears in compressor.
Step S106, if judge that overload protection appears in compressor, the blower fan controlling air-conditioner is out of service.
If judge that overload protection has appearred in compressor according to the result detected the state of compressor in air-conditioner, then the blower fan controlling air-conditioner is out of service.First, the outdoor fan controlling air-conditioner is shut down, afterwards; control the compressor shutdown of air-conditioner, alternatively, by disconnecting the A.C. contactor of air-conditioner; pressure makes compressor quit work; if air-conditioner is in refrigeration mode, then control the indoor fan start of air-conditioner, or; if air-conditioner is in heating mode; the indoor fan then controlling air-conditioner stops, thus after making compressor out of service, improves the comfortableness that air-conditioner uses.
If judge that overload protection appears in compressor, overload of compressor protecting control method can also comprise: the number of times of overload protection appears in statistics compressor; Judge that compressor occurs whether the number of times of overload protection reaches preset times, wherein, preset times is that air-conditioner allows compressor to occur the safety value of the number of times of overload protection, is the parameter judging whether compressor breaks down; If judge that compressor occurs that the number of times of overload protection reaches preset times, then determine that compressor breaks down.
After determining that compressor breaks down, overload of compressor protecting control method can also comprise: export fault-signal.Fault-signal can indicate the overload protection of compressor to break down, and compressor cisco unity malfunction is described, needs to take certain maintenance measures; Or, directly control compressor out of service.
After determining that compressor breaks down, overload of compressor protecting control method can also comprise: export information.Information may be used for pointing out the fault removing compressor, preferably, information is shutdown information, such as: the information of " system work at present is abnormal; be about to shut down ", for prompting, power-off or shutdown process are performed to air-conditioner, avoid the working condition of the compressor broken down to worsen further; Information can also be transform hint information; such as: the information of " system work at present is abnormal; be about to be converted to safe mode "; for pointing out, the operational mode of air-conditioner is changed; conversion such as between refrigeration mode, heating mode, dehumidification mode and air supply pattern; guarantee that compressor operating in the secure mode, it also avoid high frequent and occur overload protection.
Preferably, the air-conditioner in this embodiment is air-conditioner with fixed frequency.Compressor due to air-conditioner with fixed frequency does not have overload protection feedback function, and when overload protection appears in compressor, the main control computer of air-conditioning can not receive the overload protection information of compressor, can carry out overload protection to high frequent.Can occur that the number of times of overload protection is added up to compressor; judge that compressor occurs whether the number of times of overload protection reaches preset times; if judge that compressor occurs that the number of times of overload protection reaches preset times; then determine that compressor breaks down; overload protection again by exporting fault-signal instruction compressor breaks down; or, control compressor out of service.In addition, can also export information to remove the fault of compressor, the number of times of overload protection exceedes the safety value of overload protection number of times and causes system pipeline to be frequently subject to the impact of pulse to avoid high frequent to occur.
The overload of compressor protecting control method of this embodiment adopts and detects the state of compressor in air-conditioner; obtain testing result; then judge whether compressor occurs overload protection according to testing result; if judge that overload protection appears in compressor; the blower fan controlling air-conditioner is out of service, reaches the effect of the possibility reducing compressor generation overload protection easy initiating system pipeline booster.
It should be noted that, can perform in the computer system of such as one group of computer executable instructions in the step shown in the flow chart of accompanying drawing, and, although show logical order in flow charts, but in some cases, can be different from the step shown or described by order execution herein.
The embodiment of the present invention additionally provides a kind of overload of compressor protecting control device, it should be noted that, the overload of compressor protecting control device of this embodiment may be used for the overload of compressor protecting control method performing the embodiment of the present invention.
Fig. 2 is the schematic diagram of overload of compressor protecting control device according to a first embodiment of the present invention, and as shown in Figure 2, this device comprises detecting unit 10, the first judging unit 20 and control unit 30.
Detecting unit 10, for detecting the state of compressor in air-conditioner, obtains testing result.The state of detecting unit 10 pairs of compressors carries out the detection detecting voltage or the electric current that can comprise air-conditioner.Preferably, the complete machine electric current of detecting unit 10 pairs of air-conditioners detects the testing result obtaining complete machine electric current, comprises the complete machine electric current that overload of compressor protection detects at the beginning, and the complete machine electric current that subsequent detection arrives.The result of the complete machine electric current that can detect according to detecting unit 10, analyzes further to it, judges the mode of operation of compressor, and also, whether compressor occurs overload protection.
First judging unit 20, for judging according to testing result whether compressor occurs overload protection.In detecting unit 10 pairs of air-conditioners, the state of compressor detects, and after obtaining testing result, according to testing result, the first judging unit 20 judges whether compressor occurs overload protection.First, judge whether the first current value of air-conditioner is greater than the first pre-set current value, preferably, first current value of air-conditioner is the current value of the air-conditioner detected in the very first time, the current value of the air-conditioner that the very first time detects is the complete machine current value of the air-conditioner that air-conditioner detects at the beginning, and the first pre-set current value is the normal postrun minimum running current of complete machine.Then, judge whether the second current value of air-conditioner is less than the second pre-set current value, preferably, second current value of air-conditioner is the current value of the air-conditioner arrived in the second time detecting, second time detecting to the current value of air-conditioner be the complete machine current value of the air-conditioner that air-conditioner subsequent detection arrives, the second predetermined current is the electric current that after compressor has a power failure, complete machine runs.
Second time was later than the very first time.First pre-set current value is less than and the second pre-set current value.If the first judging unit 20 judges that the first current value of air-conditioner is greater than the first pre-set current value, and when the second current value of air-conditioner is less than the second pre-set current value, then can determine that overload protection appears in compressor.
Control unit 30, for when judging that overload protection appears in compressor, the blower fan controlling air-conditioner is out of service.
If judge that overload protection has appearred in compressor according to the result that the state of compressor in the first judging unit 20 pairs of air-conditioners detects, then to control the blower fan of air-conditioner out of service for control unit 30.First, the outdoor fan controlling air-conditioner is shut down, afterwards; control the compressor shutdown of air-conditioner; alternatively, by disconnecting the A.C. contactor of air-conditioner, force compressor is quit work; if air-conditioner is in refrigeration mode; then control the indoor fan start of air-conditioner, or, if air-conditioner is in heating mode; the indoor fan then controlling air-conditioner stops, and avoids problem that when heating, existences is blown a cold wind over and affects the comfortableness of air-conditioner device use.
After determining that compressor breaks down, overload of compressor protecting control device exports fault-signal.Fault-signal can indicate the overload protection of compressor to break down, and compressor cisco unity malfunction is described, needs to take certain maintenance measures; Or, directly control compressor out of service.
After determining that compressor breaks down, overload of compressor protecting control device exports information.Information may be used for pointing out the fault removing compressor, preferably, information is shutdown information, such as: the information of " system work at present is abnormal; be about to shut down ", for prompting, power-off or shutdown process are performed to air-conditioner, avoid the working condition of the compressor broken down to worsen further; Information can also be transform hint information; such as: the information of " system work at present is abnormal, is about to be converted to safe mode ", for pointing out, the operational mode of air-conditioner is changed; guarantee that compressor operating in the secure mode, it also avoid high frequent and occur overload protection.
The overload of compressor protecting control device of this embodiment is detected by the state of compressor in detecting unit 10 pairs of air-conditioners, obtain testing result, then judge whether compressor occurs overload protection by the first judging unit 20 according to testing result, again by control unit 30 when judging that overload protection appears in compressor, the blower fan controlling air-conditioner is out of service, avoid because high frequent occurs that overload protection causes system pipeline to be frequently subject to the impact of pulse, reach the effect of the possibility reducing compressor generation overload protection easy initiating system pipeline booster.
Fig. 3 is the schematic diagram of overload of compressor protecting control device according to a second embodiment of the present invention.In one embodiment of the invention, overload of compressor protecting control device comprises statistic unit 40, the second judging unit 50 and determining unit 60.As shown in Figure 3, this device comprises detecting unit 10, and the first judging unit 20 and control unit 30, also comprise statistic unit 40, the second judging unit 50 and determining unit 60.
Statistic unit 40, for when judging that overload protection appears in compressor, there is the number of times of overload protection in statistics compressor.
Second judging unit 50, for judging that compressor occurs whether the number of times of overload protection reaches preset times.
Determining unit 60, for when judging that compressor occurs that the number of times of overload protection reaches preset times, determines that compressor breaks down.
If the first judging unit 20 judges that overload protection appears in compressor; statistic unit 40 adds up the number of times that overload protection appears in compressor; second judging unit 50 judges that compressor occurs whether the number of times of overload protection reaches preset times; wherein; preset times is that air-conditioner allows compressor to occur the safety value of the number of times of overload protection; it is the parameter judging whether compressor breaks down; if the second judging unit 50 judges that compressor occurs that the number of times of overload protection reaches preset times, then determining unit 60 determines that compressor breaks down.
Fig. 4 is the schematic diagram of overload of compressor protecting control device according to a third embodiment of the present invention.In one embodiment of the invention, overload of compressor protecting control device comprises output unit 70.As shown in Figure 4, this device comprises detecting unit 10, the first judging unit 20, control unit 30, statistic unit 40, the second judging unit 50, and determining unit 60, also comprises output unit 70.
Output unit 70, after determining that compressor breaks down in determining unit 60, exports fault-signal, wherein, the overload protection that the fault-signal that output unit 70 exports is used to indicate compressor breaks down, and compressor cisco unity malfunction is described, needs to take certain maintenance measures; Or control unit 30 is also out of service for controlling compressor.
Output unit 70, can also be used for after determining unit 60 determines that compressor breaks down, export information, wherein, the information that output unit 70 exports removes the fault of compressor for pointing out, information can comprise shutdown information, for prompting, power-off or shutdown process are performed to air-conditioner, such as: the information of " system work at present is abnormal, is about to shut down ", the working condition of the compressor broken down is avoided to worsen further; Information can also be transform hint information; for pointing out, the operational mode of air-conditioner is changed, such as: the information of " system work at present is abnormal, is about to be converted to safe mode "; to guarantee that compressor operating in the secure mode, it also avoid high frequent and occur overload protection.
In one embodiment of the invention, detecting unit 10 is for detecting the complete machine electric current of air-conditioner, first judging unit 20 is for judging whether the first current value of air-conditioner is greater than the first pre-set current value, and judge whether the second current value of air-conditioner is less than the second pre-set current value, wherein, first current value of air-conditioner is the current value of the air-conditioner detected in the very first time, second current value of air-conditioner is the current value of the air-conditioner arrived in the second time detecting, second time was later than the very first time, first pre-set current value is less than the second pre-set current value, wherein, if judge that the first current value of air-conditioner is greater than the first pre-set current value and the second current value of air-conditioner is less than the second pre-set current value, then determine that overload protection appears in compressor.
In one embodiment of the invention, control unit 30 is also for when judging that overload protection appears in compressor, and the outdoor fan first controlling air-conditioner is shut down, and then controls compressor shutdown.If air-conditioner is in refrigeration mode, control the indoor fan start of air-conditioner, or if air-conditioner is in heating mode, the indoor fan controlling air-conditioner stops, thus after making compressor out of service, improves the comfortableness that air-conditioner uses.
Preferably, the air-conditioner in this embodiment is air-conditioner with fixed frequency.The compressor of air-conditioner with fixed frequency does not have overload protection feedback function, and when overload protection appears in compressor, the main control computer of air-conditioning can not receive the overload protection information of compressor, can carry out overload protection to high frequent.Can by occurring that to compressor the number of times of overload protection is added up; judge that compressor occurs whether the number of times of overload protection reaches preset times; if judge that compressor occurs that the number of times of overload protection reaches preset times; then determine that compressor breaks down; overload protection again by exporting fault-signal instruction compressor breaks down; or, control compressor out of service.In addition; information can also be exported to remove the fault of compressor; avoid high frequent and occur that the number of times of overload protection exceedes the safety value of overload protection number of times and causes system pipeline to be frequently subject to the impact of pulse, reach the effect of the possibility reducing compressor generation overload protection easy initiating system pipeline booster.
The embodiment of the present invention additionally provides a kind of air-conditioner with fixed frequency, it should be noted that, the air-conditioner with fixed frequency of this embodiment may be used for the overload of compressor protecting control method and apparatus performing the embodiment of the present invention.
Embodiments of the invention can under the prerequisite not increasing extra cost; formulate this overload of compressor protecting control by overload of compressor protecting control method to control; thus avoid air-conditioner; especially air-conditioner with fixed frequency; because high frequent start and stop cause system pipeline be frequently subject to the impact of pulse and make the danger of system pipeline generation booster; it also avoid compressor after out of service; and indoor and outdoor blower fan still remains in operation; particularly heat the problem existing in situation and blow a cold wind over, improve the comfort of air-conditioner.It should be noted that, invention achieves the effect of the possibility reducing compressor generation overload protection easy initiating system pipeline booster.
Obviously, those skilled in the art should be understood that, above-mentioned of the present invention each module or each step can realize with general calculation element, they can concentrate on single calculation element, or be distributed on network that multiple calculation element forms, alternatively, they can realize with the executable program code of calculation element, thus, they can be stored and be performed by calculation element in the storage device, or they are made into each integrated circuit modules respectively, or the multiple module in them or step are made into single integrated circuit module to realize.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 amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (15)
1. an overload of compressor protecting control method, is characterized in that, comprising:
The state of compressor in air-conditioner is detected, obtains testing result;
Judge whether described compressor occurs overload protection according to described testing result; And
If judge that overload protection appears in described compressor, the blower fan controlling described air-conditioner is out of service.
2. overload of compressor protecting control method according to claim 1, is characterized in that, if judge that overload protection appears in described compressor, described overload of compressor protecting control method also comprises:
Add up the number of times that overload protection appears in described compressor;
Judge that described compressor occurs whether the number of times of overload protection reaches preset times; And
If judge that described compressor occurs that the number of times of overload protection reaches described preset times, then determine that described compressor breaks down.
3. overload of compressor protecting control method according to claim 2, is characterized in that, after determining that described compressor breaks down, described overload of compressor protecting control method also comprises:
Export fault-signal, wherein, the overload protection that described fault-signal is used to indicate described compressor breaks down; Or,
Control described compressor out of service.
4. overload of compressor protecting control method according to claim 2, is characterized in that, after determining that described compressor breaks down, described overload of compressor protecting control method also comprises:
Export information, wherein, described information removes the fault of described compressor for pointing out, described information comprises any one information following:
Shutdown information, performs power-off or shutdown process for prompting to described air-conditioner; And
Transform hint information, changes the operational mode of described air-conditioner for pointing out.
5. overload of compressor protecting control method according to claim 1, is characterized in that,
Carry out detection to the state of compressor in air-conditioner to comprise: the complete machine electric current detecting described air-conditioner,
Judge whether described compressor occurs overload protection according to described testing result: judge whether the first current value of described air-conditioner is greater than the first pre-set current value, and judge whether the second current value of described air-conditioner is less than the second pre-set current value, wherein, first current value of described air-conditioner is the current value of the described air-conditioner detected in the very first time, second current value of described air-conditioner is the current value of the described air-conditioner arrived in the second time detecting, described second time is later than the described very first time, described first pre-set current value is less than described second pre-set current value,
Wherein, if judge that the first current value of described air-conditioner is greater than described first pre-set current value and the second current value of described air-conditioner is less than described second pre-set current value, then determine that overload protection appears in described compressor.
6. overload of compressor protecting control method according to claim 1, is characterized in that, if judge that overload protection appears in described compressor, described overload of compressor protecting control method also comprises:
The outdoor fan controlling described air-conditioner is shut down;
Control described compressor shutdown;
If described air-conditioner is in refrigeration mode, control the indoor fan start of described air-conditioner; Or
If described air-conditioner is in heating mode, the indoor fan controlling described air-conditioner stops.
7. overload of compressor protecting control method according to claim 1, is characterized in that, described air-conditioner is air-conditioner with fixed frequency.
8. an overload of compressor protecting control device, is characterized in that, comprising:
Detecting unit, for detecting the state of compressor in air-conditioner, obtains testing result;
According to described testing result, first judging unit, for judging whether described compressor occurs overload protection; And
Control unit, for when judging that overload protection appears in described compressor, the blower fan controlling described air-conditioner is out of service.
9. overload of compressor protecting control device according to claim 8, is characterized in that, described overload of compressor protecting control device also comprises:
Statistic unit, for when judging that overload protection appears in described compressor, adds up the number of times that overload protection appears in described compressor;
Second judging unit, for judging that described compressor occurs whether the number of times of overload protection reaches preset times; And
Determining unit, for when judging that described compressor occurs that the number of times of overload protection reaches described preset times, determines that described compressor breaks down.
10. overload of compressor protecting control device according to claim 9, is characterized in that,
Described overload of compressor protecting control device also comprises: output unit, and for after determining that described compressor breaks down, export fault-signal, wherein, the overload protection that described fault-signal is used to indicate described compressor breaks down; Or,
Described control unit is also out of service for controlling described compressor.
11. overload of compressor protecting control devices according to claim 9, is characterized in that, described overload of compressor protecting control device also comprises:
Output unit, for after determining that described compressor breaks down, export information, wherein, described information removes the fault of described compressor for pointing out, described information comprises any one information following: shutdown information, performs power-off or shutdown process for prompting to described air-conditioner; Transform hint information, changes the operational mode of described air-conditioner for pointing out.
12. overload of compressor protecting control devices according to claim 8, is characterized in that,
Described detecting unit for detecting the complete machine electric current of described air-conditioner,
Described first judging unit is for judging whether the first current value of described air-conditioner is greater than the first pre-set current value, and judge whether the second current value of described air-conditioner is less than the second pre-set current value, wherein, first current value of described air-conditioner is the current value of the described air-conditioner detected in the very first time, second current value of described air-conditioner is the current value of the described air-conditioner arrived in the second time detecting, described second time is later than the described very first time, described first pre-set current value is less than described second pre-set current value, wherein, if judge that the first current value of described air-conditioner is greater than described first pre-set current value and the second current value of described air-conditioner is less than described second pre-set current value, then determine that overload protection appears in described compressor.
13. overload of compressor protecting control devices according to claim 8, is characterized in that, described control unit, also for when judging that overload protection appears in described compressor, performs following control:
The outdoor fan controlling described air-conditioner is shut down;
Control described compressor shutdown;
If described air-conditioner is in refrigeration mode, control the indoor fan start of described air-conditioner; Or
If described air-conditioner is in heating mode, the indoor fan controlling described air-conditioner stops.
14. overload of compressor protecting control devices according to claim 8, it is characterized in that, described air-conditioner is air-conditioner with fixed frequency.
15. 1 kinds of air-conditioner with fixed frequencies, is characterized in that, comprise the overload of compressor protecting control device according to any one of claim 8 to 14.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510561334.0A CN105180362B (en) | 2015-09-02 | 2015-09-02 | Overload of compressor protects control method and device and air-conditioner with fixed frequency |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510561334.0A CN105180362B (en) | 2015-09-02 | 2015-09-02 | Overload of compressor protects control method and device and air-conditioner with fixed frequency |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105180362A true CN105180362A (en) | 2015-12-23 |
| CN105180362B CN105180362B (en) | 2018-01-23 |
Family
ID=54902629
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510561334.0A Active CN105180362B (en) | 2015-09-02 | 2015-09-02 | Overload of compressor protects control method and device and air-conditioner with fixed frequency |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105180362B (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105757908A (en) * | 2016-04-08 | 2016-07-13 | 广东美的制冷设备有限公司 | Air conditioner control method and device |
| CN106123211A (en) * | 2016-06-22 | 2016-11-16 | 广东美的制冷设备有限公司 | In air-conditioner and air-conditioner, the low-voltage variation of compressor controls apparatus and method |
| CN106196494A (en) * | 2016-08-01 | 2016-12-07 | 珠海格力电器股份有限公司 | A kind of complete machine overload control method and device |
| CN106642519A (en) * | 2016-09-20 | 2017-05-10 | 青岛海尔空调器有限总公司 | Constant-frequency air conditioner stopping control method and device |
| WO2019015137A1 (en) * | 2017-07-21 | 2019-01-24 | 广东美的暖通设备有限公司 | Control method and control device of air conditioner and air conditioner |
| CN106246525B (en) * | 2016-08-31 | 2019-02-01 | 珠海格力电器股份有限公司 | Compressor progress control method and device |
| CN109405175A (en) * | 2018-10-22 | 2019-03-01 | 珠海格力电器股份有限公司 | A kind of fault clearance method, apparatus, storage medium, equipment unit and terminal |
| CN109442674A (en) * | 2018-11-01 | 2019-03-08 | Tcl空调器(中山)有限公司 | Compressor of air conditioner guard method, unit, storage medium and air conditioner |
| CN109489205A (en) * | 2018-11-16 | 2019-03-19 | 广东美的制冷设备有限公司 | Air-conditioning and its compressor stop jumping prediction technique and device |
| CN110595015A (en) * | 2019-09-25 | 2019-12-20 | 珠海格力电器股份有限公司 | Adjusting method and device of frequency conversion equipment |
| CN112065704A (en) * | 2020-09-29 | 2020-12-11 | 广东芬尼克兹节能设备有限公司 | Compressor switch fault protection method and device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR0140062B1 (en) * | 1993-05-21 | 1998-07-01 | 김광호 | Overload control method of air conditioner |
| CN1888690A (en) * | 2005-06-28 | 2007-01-03 | 乐金电子(天津)电器有限公司 | Outdoor fan controlling method for air conditioner under overloading state |
| CN101893310A (en) * | 2010-08-31 | 2010-11-24 | 四川长虹空调有限公司 | Control method for preventing overload of compressor under heating mode of heat pump air conditioner |
| CN202868923U (en) * | 2012-11-07 | 2013-04-10 | 珠海格力电器股份有限公司 | Air conditioner |
| CN104564638A (en) * | 2013-10-24 | 2015-04-29 | 珠海格力电器股份有限公司 | Compressor overload protection control method and device |
| CN104566772A (en) * | 2013-10-24 | 2015-04-29 | 广州南洋理工职业学院 | Air conditioner refrigeration overload protection method |
-
2015
- 2015-09-02 CN CN201510561334.0A patent/CN105180362B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR0140062B1 (en) * | 1993-05-21 | 1998-07-01 | 김광호 | Overload control method of air conditioner |
| CN1888690A (en) * | 2005-06-28 | 2007-01-03 | 乐金电子(天津)电器有限公司 | Outdoor fan controlling method for air conditioner under overloading state |
| CN101893310A (en) * | 2010-08-31 | 2010-11-24 | 四川长虹空调有限公司 | Control method for preventing overload of compressor under heating mode of heat pump air conditioner |
| CN202868923U (en) * | 2012-11-07 | 2013-04-10 | 珠海格力电器股份有限公司 | Air conditioner |
| CN104564638A (en) * | 2013-10-24 | 2015-04-29 | 珠海格力电器股份有限公司 | Compressor overload protection control method and device |
| CN104566772A (en) * | 2013-10-24 | 2015-04-29 | 广州南洋理工职业学院 | Air conditioner refrigeration overload protection method |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105757908B (en) * | 2016-04-08 | 2018-09-04 | 广东美的制冷设备有限公司 | Air-conditioner control method and device |
| CN105757908A (en) * | 2016-04-08 | 2016-07-13 | 广东美的制冷设备有限公司 | Air conditioner control method and device |
| CN106123211A (en) * | 2016-06-22 | 2016-11-16 | 广东美的制冷设备有限公司 | In air-conditioner and air-conditioner, the low-voltage variation of compressor controls apparatus and method |
| CN106196494A (en) * | 2016-08-01 | 2016-12-07 | 珠海格力电器股份有限公司 | A kind of complete machine overload control method and device |
| CN106196494B (en) * | 2016-08-01 | 2018-11-09 | 珠海格力电器股份有限公司 | A kind of complete machine overload control method and device |
| CN106246525B (en) * | 2016-08-31 | 2019-02-01 | 珠海格力电器股份有限公司 | Compressor progress control method and device |
| CN106642519A (en) * | 2016-09-20 | 2017-05-10 | 青岛海尔空调器有限总公司 | Constant-frequency air conditioner stopping control method and device |
| WO2019015137A1 (en) * | 2017-07-21 | 2019-01-24 | 广东美的暖通设备有限公司 | Control method and control device of air conditioner and air conditioner |
| CN109405175A (en) * | 2018-10-22 | 2019-03-01 | 珠海格力电器股份有限公司 | A kind of fault clearance method, apparatus, storage medium, equipment unit and terminal |
| CN109442674A (en) * | 2018-11-01 | 2019-03-08 | Tcl空调器(中山)有限公司 | Compressor of air conditioner guard method, unit, storage medium and air conditioner |
| CN109442674B (en) * | 2018-11-01 | 2020-11-13 | Tcl空调器(中山)有限公司 | Air conditioner compressor protection method, equipment, device, storage medium and air conditioner |
| CN109489205A (en) * | 2018-11-16 | 2019-03-19 | 广东美的制冷设备有限公司 | Air-conditioning and its compressor stop jumping prediction technique and device |
| CN109489205B (en) * | 2018-11-16 | 2020-08-25 | 广东美的制冷设备有限公司 | Air conditioner and compressor jump-stop prediction method and device thereof |
| CN110595015A (en) * | 2019-09-25 | 2019-12-20 | 珠海格力电器股份有限公司 | Adjusting method and device of frequency conversion equipment |
| CN112065704A (en) * | 2020-09-29 | 2020-12-11 | 广东芬尼克兹节能设备有限公司 | Compressor switch fault protection method and device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105180362B (en) | 2018-01-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105180362A (en) | Compressor overload protection control method and device as well as fixed-frequency air conditioner | |
| CN104913453A (en) | Anti-condensation control method, anti-condensation control system and air conditioner | |
| CN105605739A (en) | Air conditioning system and monitoring method and device of refrigerant leakage of air conditioning system | |
| CN104633864A (en) | Coolant leakage detection method and device for air condition and air condition outdoor unit | |
| CN103512146B (en) | Air conditioning control method and device | |
| CN108050663A (en) | Control method and device, air-conditioning and the storage medium of compressor self-shield | |
| CN103383130A (en) | Intelligent fresh air and air conditioning linkage control management method | |
| CN201875842U (en) | Air conditioner using combustible refrigerant | |
| CN105351182A (en) | Starting method and device for air condition compressor | |
| CN106352489A (en) | Air conditioner fault detecting method and system | |
| CN103807982A (en) | Air conditioner | |
| CN110513821A (en) | A kind of air-conditioner outdoor unit detection system and its detection method | |
| CN105588298A (en) | Detection method, device and system for air conditioning equipment | |
| CN105066370A (en) | Compressor overload protection control method and device and air conditioner | |
| CN105135533A (en) | Air conditioner and control method thereof | |
| CN101814717A (en) | Compressor protection method for air conditioner | |
| CN106839255A (en) | Convertible frequency air-conditioner sensor fault processing method | |
| CN104764164A (en) | Method for judging whether alternating-current contactor of air conditioner is adhered or not | |
| CN202868923U (en) | Air conditioner | |
| CN109237717A (en) | A kind of air-conditioning electric heating heat protection method, device and air conditioner | |
| CN114322202A (en) | Fault self-diagnosis method and system based on cloud server | |
| CN112361532A (en) | Dust removal method and device for outdoor unit of household air conditioner | |
| CN105805994A (en) | Control method and control device used for expansion valve of compressor | |
| CN110345603B (en) | Air conditioner, operation control system, operation control method and computer medium thereof | |
| CN103363616B (en) | Air-conditioner and control method, control terminal and control system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |