CN105180362B - Overload of compressor protects control method and device and air-conditioner with fixed frequency - Google Patents
Overload of compressor protects control method and device and air-conditioner with fixed frequency Download PDFInfo
- Publication number
- CN105180362B CN105180362B CN201510561334.0A CN201510561334A CN105180362B CN 105180362 B CN105180362 B CN 105180362B CN 201510561334 A CN201510561334 A CN 201510561334A CN 105180362 B CN105180362 B CN 105180362B
- Authority
- CN
- China
- Prior art keywords
- compressor
- air conditioner
- overload
- current value
- overload protection
- 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.)
- Active
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
Abstract
The invention discloses a kind of overload of compressor protection control method and device and air-conditioner with fixed frequency.The overload of compressor protection control method of the present invention includes：The state of compressor in air conditioner is detected, obtains testing result；Judge whether compressor overload protection occurs according to testing result；If it is judged that overload protection occurs in compressor, control the blower fan of air conditioner out of service.By the present invention, reduce compressor and the possibility that overload protection easily triggers system pipeline booster occurs.
Description
Technical field
The present invention relates to field of air conditioning, protects control method and device in particular to a kind of overload of compressor and determines
Frequency air conditioner.
Background technology
With the development of society, the problem of energy and environment, is more and more prominent, the especially consumption in the energy and environment
Pollution and destruction aspect.How effective solution is taken also increasingly to be valued by people in these areas.At present, in
The most domestic air conditioning of state uses R22 conventional refrigerants, and R22 refrigerants are using a kind of more system in chlorofluoromethane refrigerant
Cryogen, it is very big to depletion of the ozone layer, has seriously endangered the living environment of the mankind and overall ecological environment, will gradually eliminate.
R410A refrigerants are a kind of refrigerants as R22 substitutes, are not damaged the ozone layer, and make air-conditioning work efficiency high, but R22
Refrigerant, the global warming potential (Global Warming Potentials, referred to as GWP) of R410A refrigerants are higher,
Long-term use causes certain destruction to weather, belongs to the refrigerant of non-environmental protection.Therefore, the relatively low novel environment friendly of GWP value is developed
Refrigerant, such as R32 refrigerants.R32 refrigerants do not damage the ozone layer not only, and save.But the saturation of R32 refrigerants
Pressure is higher by about 2.5% than R410A refrigerant, and R32 refrigerants have certain combustibility, is spilt when R32 refrigerants split
Come, certain danger can be caused.Thus for R32 refrigerants, prevent air-conditioning system from splitting the urgency of leakage and being significantly larger than
R22 refrigerants and R410A refrigerants.
At present, air-conditioning, such as fixed frequency air conditioner do not have the feedback function that overload of compressor is protected.When the compressor of air-conditioning occurs
During overload protection, the main control computer of air-conditioning can not receive overload protection information, and the high frequent of air-conditioning can so carried out
Protection is carried, causes air-conditioning system pipeline continually to be impacted by pulse, adds the possibility of system pipeline booster.Separately
On the one hand, after compressor is out of service, and indoor and outdoor blower fan continues to operate, and particularly in heating, the feelings blown a cold wind over be present
Condition, and then influence the comfortableness that air conditioner uses.
The problem of for easily triggering system pipeline booster due to compressor generation overload protection in correlation technique, at present still
Effective solution is not proposed.
The content of the invention
It is a primary object of the present invention to provide a kind of overload of compressor protection control method and device and air-conditioner with fixed frequency,
Easily trigger system pipeline booster to solve the problems, such as that overload protection occurs for compressor.
To achieve these goals, according to an aspect of the invention, there is provided a kind of overload of compressor protects controlling party
Method, this method include：The state of compressor in air conditioner is detected, obtains testing result；Judge to press according to testing result
Whether contracting machine there is overload protection；And if it is judged that overload protection occurs in compressor, the blower fan of air conditioner is controlled to stop fortune
OK.
Further, if it is judged that overload protection occurs in compressor, overload of compressor protection control method also includes：System
There is the number of overload protection in meter compressor；Judge whether the number that overload protection occurs in compressor reaches preset times；And
If it is judged that the number that overload protection occurs in compressor reaches preset times, it is determined that compressor breaks down.
Further, it is determined that after compressor failure, overload of compressor protection control method also includes：Output event
Hinder signal, wherein, fault-signal is used to indicate that the overload protection of compressor to break down；Or control compressor is out of service.
Further, it is determined that after compressor failure, overload of compressor protection control method also includes：Output carries
Show information, wherein, prompt message is used to prompt the failure for removing compressor, and prompt message includes any one following prompting letter
Breath：Shutdown prompt message, for prompting to perform air conditioner power-off or shutdown processing；And transform hint information, for carrying
Show and the operational mode of air conditioner is changed.
Further, carrying out detection to the state of compressor in air conditioner includes：The complete machine electric current of air conditioner is detected, according to
Testing result judges whether compressor overload protection occurs：Judge whether the first current value of air conditioner is more than the first predetermined current
Value, and judges whether the second current value of air conditioner is less than the second pre-set current value, wherein, the first current value of air conditioner for
The current value for the air conditioner that the very first time detects, the second current value of air conditioner are the air conditioner arrived in the second time detecting
Current value, the second time are later than the very first time, and the first pre-set current value is less than the second pre-set current value, wherein, if it is judged that
First current value of air conditioner is more 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 occurs in compressor.
Further, if it is judged that overload protection occurs in compressor, overload of compressor protection control method also includes：Control
The outdoor fan of air conditioner processed is shut down；Control compressor shutdown；If air conditioner is in refrigeration mode, the interior of air conditioner is controlled
Blower fan is started shooting；Or if air conditioner is in heating mode, the indoor fan of air conditioner is controlled to stop.
Further, the air conditioner in overload of compressor protection control method is air-conditioner with fixed frequency.
To achieve these goals, according to another aspect of the present invention, there is provided a kind of overload of compressor protection control dress
Put, the device includes：Detection unit, for being detected to the state of compressor in air conditioner, obtain testing result；First sentences
Disconnected unit, for judging whether compressor overload protection occurs according to testing result；And control unit, for judging to press
When overload protection occurs in contracting machine, control the blower fan of air conditioner out of service.
Further, overload of compressor protection control device also includes：Statistic unit, for judging compressor appearance
During overload protection, there is the number of overload protection in statistics compressor；Second judging unit, protected for judging that overload occurs in compressor
Whether the number of shield reaches preset times；And determining unit, for judging that the number that overload protection occurs in compressor reaches
During to preset times, determine that compressor breaks down.
Further, overload of compressor protection control device also includes：Output unit, for it is determined that event occurs in compressor
After barrier, fault-signal is exported, wherein, fault-signal is used to indicate that the overload protection of compressor to break down；Or control is single
Member is additionally operable to control compressor out of service.
Further, overload of compressor protection control device also includes：Output unit, for it is determined that event occurs in compressor
After barrier, prompt message is exported, wherein, prompt message is used to prompt the failure for removing compressor, and prompt message includes following
Anticipate a kind of prompt message：Shutdown prompt message, for prompting to perform air conditioner power-off or shutdown processing；Transform hint is believed
Breath, for prompting to change the operational mode of air conditioner.
Further, detection unit is used for the complete machine electric current for detecting air conditioner, and the first judging unit is used to judge air conditioner
The first current value whether be more than the first pre-set current value, and judge whether the second current value of air conditioner is less than the second default electricity
Flow valuve, wherein, the first current value of air conditioner is the current value of the air conditioner detected in the very first time, and the second of air conditioner is electric
Flow valuve is the current value of the air conditioner arrived in the second time detecting, and the second time was later than the very first time, and the first pre-set current value is small
In the second pre-set current value, wherein, if it is judged that the first current value of air conditioner is more than the first pre-set current value and air-conditioning
Second current value of device is less than the second pre-set current value, it is determined that overload protection occurs in compressor.
Further, control unit is additionally operable to when judging that overload protection occurs in compressor, performs following control：Control
The outdoor fan of air conditioner is shut down；Control compressor shutdown；If air conditioner is in refrigeration mode, the indoor wind of air conditioner is controlled
Machine is started shooting；Or if air conditioner is in heating mode, the indoor fan of air conditioner is controlled to stop.
Further, the air conditioner of overload of compressor protection control device is air-conditioner with fixed frequency.
To achieve these goals, according to another aspect of the present invention, a kind of air-conditioner with fixed frequency is additionally provided, the fixed frequency is empty
Device is adjusted to include any one overload of compressor provided by the invention protection control device.
By the present invention, detected using the state to compressor in air conditioner, testing result is obtained, then according to inspection
Survey result and judge whether compressor overload protection occurs, if it is judged that overload protection occurs in compressor, control the wind of air conditioner
Machine is out of service, solves the problems, such as easily to trigger system pipeline booster because overload protection occurs for compressor in the prior art,
And then reduce compressor and the effect that overload protection easily triggers the possibility of system pipeline booster occurs.
Brief description of the drawings
The accompanying drawing for forming the part of the application is used for providing a further understanding of the present invention, schematic reality of the invention
Apply example and its illustrate to be used to explain the present invention, do not form inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 is the flow chart of overload of compressor protection control method according to embodiments of the present invention；
Fig. 2 is the schematic diagram of overload of compressor protection control device according to a first embodiment of the present invention；
Fig. 3 is the schematic diagram of overload of compressor protection control device according to a second embodiment of the present invention；And
Fig. 4 is the schematic diagram of overload of compressor protection control device according to a third embodiment of the present invention.
Embodiment
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the application can phase
Mutually combination.Describe the present invention in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
In order that those skilled in the art more fully understand application scheme, below in conjunction with the embodiment of the present application
Accompanying drawing, the technical scheme in the embodiment of the present application is clearly and completely described, it is clear that described embodiment is only
The embodiment of the application part, rather than whole embodiments.Based on the embodiment in the application, ordinary skill people
The every other embodiment that member is obtained under the premise of creative work is not made, it should all belong to the model of the application protection
Enclose.
It should be noted that term " first " in the description and claims of this application and above-mentioned accompanying drawing, "
Two " etc. be for distinguishing similar object, without for describing specific order or precedence.It should be appreciated that so use
Data can exchange in the appropriate case, so as to embodiments herein described herein.In addition, term " comprising " and " tool
Have " and their any deformation, it is intended that cover it is non-exclusive include, for example, containing series of steps or unit
Process, method, system, product or equipment are not necessarily limited to those steps clearly listed or unit, but may include without clear
It is listing to Chu or for the intrinsic other steps of these processes, method, product or equipment or unit.
Fig. 1 is the flow chart of overload of compressor protection control method according to embodiments of the present invention, and this method is used for pressure
Contracting machine overload protection is controlled, as shown in figure 1, overload of compressor protection control method comprises the following steps：
Step S102, the state of compressor in air conditioner is detected, obtains testing result.
The mode of operation of compressor includes overload protection, and non-overloaded protection in air conditioner.The line of compressor in air conditioner
Electric current and safe current on road meet preset relation, when the electric current in air conditioner on the circuit of compressor is more than safe current
When, compressor carries out overload protection in air conditioner, and the circuit of compressor can use automatic switch as overload protection device, example
Such as, fuse.Compressor is being just if the electric current in air conditioner on the circuit of compressor is not more than safe current, in air conditioner
Often work, is non-overloaded protection.
The state of compressor in air conditioner is detected, obtains testing result.Carrying out detection to the state of compressor can
To include the detection of voltage or electric current to air conditioner.Preferably, the complete machine electric current of air conditioner is detected to obtain complete machine
The testing result of electric current, including the complete machine electric current that overload of compressor protection detects at the beginning, and the complete machine electricity that subsequent detection arrives
Stream.The mode of operation of compressor to its further analysis, can be judged, that is, pressing according to the result of the complete machine electric current detected
Whether contracting machine there is overload protection.
Step S104, judge whether compressor overload protection occurs according to testing result.
The state of compressor detects in air conditioner, after obtaining testing result, judges to press according to testing result
Whether contracting machine there is overload protection.First, it is determined that whether the first current value of air conditioner is more than the first pre-set current value, preferably
Ground, the first current value of air conditioner are the current value of the air conditioner detected in the very first time, the air-conditioning that the very first time detects
The current value of device is the complete machine current value for the air conditioner that air conditioner detects at the beginning, and the first pre-set current value is that complete machine is normally transported
Minimum running current after row.Then, judge whether the second current value of air conditioner is less than the second pre-set current value, it is preferable that
Second current value of air conditioner is the current value of the air conditioner arrived in the second time detecting, the air conditioner that the second time detecting arrives
Current value is the complete machine current value for the air conditioner that air conditioner subsequent detection arrives, and the second predetermined current is that complete machine is transported after compressor has a power failure
Capable electric current.
Second time was later than the very first time, that is, the second current value detects after the first current value.With the first electric current
First pre-set current value of value contrast is less than the second pre-set current value with the contrast of the second current value.If it is judged that air conditioner
First current value is more 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 may be used
To determine that overload protection occurs in compressor.
Step S106, if it is judged that overload protection occurs in compressor, control the blower fan of air conditioner out of service.
If the result detected according to the state to compressor in air conditioner judges that compressor overload occurs and protected
Shield, then control the blower fan of air conditioner out of service.First, control the outdoor fan of air conditioner to shut down, afterwards, control air conditioner
Compressor shutdown, alternatively, by disconnecting the A.C. contactor of air conditioner, pressure makes compressor be stopped, if air conditioner
In refrigeration mode, then the indoor fan start of air conditioner is controlled, or, if air conditioner is in heating mode, control is empty
Adjust the indoor fan of device to stop, so that after compressor is out of service, improve the comfortableness that air conditioner uses.
If it is judged that overload protection occurs in compressor, overload of compressor protection control method can also include：Statistics pressure
There is the number of overload protection in contracting machine；Judge whether the number that overload protection occurs in compressor reaches preset times, wherein, preset
Number is that air conditioner allows compressor the safety value of the number of overload protection occur, is to judge the ginseng whether compressor breaks down
Number；If it is judged that the number that overload protection occurs in compressor reaches preset times, it is determined that compressor breaks down.
It is determined that after compressor failure, overload of compressor protection control method can also include：Export failure letter
Number.Fault-signal can indicate that the overload protection of compressor breaks down, and illustrate compressor cisco unity malfunction, it is necessary to take one
Fixed maintenance measures；Or directly control compressor out of service.
It is determined that after compressor failure, overload of compressor protection control method can also include：Output prompting letter
Breath.Prompt message can be used for the failure that compressor is removed in prompting, it is preferable that and prompt message is shutdown prompt message, such as：
The information of " system work at present is abnormal, will be shut down ", for prompting to perform air conditioner power-off or shutdown processing, keep away
The working condition for the compressor for exempting to break down further deteriorates；Prompt message can also be transform hint information, such as：" it is
Work at present of uniting is abnormal, that is, is converted into safe mode " information, for prompting to change the operational mode of air conditioner,
Such as the conversion between refrigeration mode, heating mode, dehumidification mode and air supply pattern, it is ensured that compressor operating is in safe mode
Under, it also avoid high frequent and overload protection occur.
Preferably, the air conditioner in the embodiment is air-conditioner with fixed frequency.Because the compressor of air-conditioner with fixed frequency does not overload
Feedback function is protected, when overload protection occurs in compressor, the main control computer of air-conditioning can not receive the overload protection letter of compressor
Breath, overload protection can be carried out to high frequent.The number that can occur overload protection to compressor counts, and judges to compress
Whether the number that overload protection occurs in machine has reached preset times, if it is judged that the number that overload protection occurs in compressor reaches
Preset times, it is determined that compressor breaks down, then indicates that the overload protection of compressor breaks down by exporting fault-signal,
Or control compressor is out of service.Further, it is also possible to export prompt message to remove the failure of compressor, compressor is avoided
The number for frequently occurring overload protection exceedes the safety value of overload protection number and causes system pipeline frequently by pulse
Impact.
The overload of compressor protection control method of the embodiment uses to be detected to the state of compressor in air conditioner, is obtained
To testing result, then judge whether compressor overload protection occurs according to testing result, if it is judged that compressor occurred
Protection is carried, controls the blower fan of air conditioner out of service, has reached reduction compressor generation overload protection and has easily triggered system pipeline
The effect of the possibility of booster.
It should be noted that can be in such as one group of computer executable instructions the flow of accompanying drawing illustrates the step of
Performed in computer system, although also, show logical order in flow charts, in some cases, can be with not
The order being same as herein performs shown or described step.
The embodiment of the present invention additionally provides a kind of overload of compressor protection control device, it is necessary to explanation, the embodiment
Overload of compressor protection control device can be used for perform the embodiment of the present invention overload of compressor protection control method.
Fig. 2 is the schematic diagram of overload of compressor protection control device according to a first embodiment of the present invention, as shown in Fig. 2
The device includes detection unit 10, the first judging unit 20 and control unit 30.
Detection unit 10, for being detected to the state of compressor in air conditioner, obtain testing result.Detection unit 10
The detection that can include to the voltage or electric current of air conditioner is detected to the state of compressor.Preferably, detection unit 10 is right
The complete machine electric current of air conditioner is detected to obtain the testing result of complete machine electric current, including overload of compressor protection detects at the beginning
The complete machine electric current arrived, and the complete machine electric current that subsequent detection arrives.Can according to the result for the complete machine electric current that detection unit 10 detects,
To its further analysis, the mode of operation of compressor is judged, that is, whether compressor overload protection occurs.
First judging unit 20, for judging whether compressor overload protection occurs according to testing result.In detection unit
The state of compressor detects in 10 pairs of air conditioners, and after obtaining testing result, the first judging unit 20 is according to testing result
Judge whether compressor overload protection occurs.First, it is determined that whether the first current value of air conditioner is more than the first pre-set current value,
Preferably, the first current value of air conditioner is the current value of the air conditioner detected in the very first time, what the very first time detected
The current value of air conditioner is the complete machine current value of air conditioner that air conditioner detects at the beginning, the first pre-set current value be complete machine just
Normal postrun minimum running current.Then, judge whether the second current value of air conditioner is less than the second pre-set current value, preferably
Ground, the second current value of air conditioner are the current value of the air conditioner arrived in the second time detecting, the air-conditioning that the second time detecting arrives
The current value of device is the complete machine current value for the air conditioner that air conditioner subsequent detection arrives, and the second predetermined current is whole after compressor has a power failure
The electric current of machine operation.
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 first judges
Unit 20 judges that the first current value of air conditioner is more than the first pre-set current value, and the second current value of air conditioner is less than the
During two pre-set current values, then it can determine that overload protection occurs in compressor.
Control unit 30, for when judging that overload protection occurs in compressor, controlling the blower fan of air conditioner out of service.
If judge to compress according to the result that the first judging unit 20 detects the state of compressor in air conditioner
There is overload protection in machine, then control unit 30 controls the blower fan of air conditioner out of service.First, the outdoor wind of air conditioner is controlled
Machine is shut down, and afterwards, controls the compressor shutdown of air conditioner, and alternatively, by disconnecting the A.C. contactor of air conditioner, pressure makes pressure
Contracting machine is stopped, if air conditioner is in refrigeration mode, the indoor fan of control air conditioner is started shooting, or, if air-conditioning
Device is in heating mode, then controls the indoor fan of air conditioner to stop, the problem of blowing a cold wind over being present when avoiding heating and influence
The comfortableness that air conditioner device uses.
It is determined that after compressor failure, overload of compressor protection control device exports fault-signal.Fault-signal
It can indicate that the overload protection of compressor breaks down, illustrate compressor cisco unity malfunction, it is necessary to take certain maintenance to arrange
Apply；Or directly control compressor out of service.
It is determined that after compressor failure, overload of compressor protection control device exports prompt message.Prompt message
Can be used for the failure that compressor is removed in prompting, it is preferable that prompt message is shutdown prompt message, such as：" system work at present
Abnormal, will be shut down " information, for prompting to perform power-off to air conditioner or shutdown is handled, avoid what is broken down
The working condition of compressor further deteriorates；Prompt message can also be transform hint information, such as：" system work at present is different
Often, that is, be converted into safe mode " information, for prompting to change the operational mode of air conditioner, it is ensured that compressor work
Make in the secure mode, to it also avoid high frequent and overload protection occur.
State of the overload of compressor protection control device of the embodiment by detection unit 10 to compressor in air conditioner
Detected, obtain testing result, then judge whether compressor occurred according to testing result by the first judging unit 20
Protection is carried, then by control unit 30 when judging that overload protection occurs in compressor, controls the blower fan of air conditioner out of service,
Avoid because high frequent overload protection occurs and causes system pipeline frequently to be impacted by pulse, reached reduction
The effect that overload protection easily triggers the possibility of system pipeline booster occurs for compressor.
Fig. 3 is the schematic diagram of overload of compressor protection control device according to a second embodiment of the present invention.The present invention's
In one embodiment, overload of compressor protection control device includes statistic unit 40, the second judging unit 50 and determining unit 60.
As shown in figure 3, the device includes detection unit 10, the first judging unit 20 and control unit 30, in addition to statistic unit 40, the
Two judging units 50 and determining unit 60.
Statistic unit 40, for when judging that overload protection occurs in compressor, overload protection to occur in statistics compressor
Number.
Second judging unit 50, for judging whether the number that overload protection occurs in compressor reaches preset times.
Determining unit 60, for when judging that compressor the number of overload protection occurs and reaches preset times, it is determined that pressure
Contracting machine breaks down.
If the first judging unit 20 judges that overload protection occurs in compressor, statistic unit 40, which counts compressor, to be occurred
The number of protection is carried, the second judging unit 50 judges whether the number that overload protection occurs in compressor reaches preset times, wherein,
Preset times are that air conditioner allows compressor the safety value of the number of overload protection occur, are to judge whether compressor breaks down
Parameter, if the second judging unit 50 judges that the number that overload protection occurs in compressor reaches preset times, it is determined that single
Member 60 determines that compressor breaks down.
Fig. 4 is the schematic diagram of overload of compressor protection control device according to a third embodiment of the present invention.The present invention's
In one embodiment, overload of compressor protection control device includes output unit 70.As shown in figure 4, the device includes detection list
Member 10, the first judging unit 20, control unit 30, statistic unit 40, the second judging unit 50, determining unit 60, in addition to it is defeated
Go out unit 70.
Output unit 70, for after determining unit 60 determines that compressor breaks down, exporting fault-signal, wherein,
The fault-signal that output unit 70 exports is used to indicate that the overload protection of compressor to break down, and illustrates that compressor can not normal work
Make, it is necessary to take certain maintenance measures；Or control unit 30 is additionally operable to control compressor out of service.
It output unit 70, can be also used for after determining unit 60 determines that compressor breaks down, export prompt message,
Wherein, the prompt message that output unit 70 exports is used to prompt the failure for removing compressor, and prompt message can carry including shutdown
Show information, for prompting to perform air conditioner power-off or shutdown processing, such as：" system work at present is abnormal, will be closed
The information of machine ", the working condition for the compressor for avoiding breaking down further deteriorate；Prompt message can also be that transform hint is believed
Breath, for prompting to change the operational mode of air conditioner, such as：" system work at present is abnormal, that is, is converted into safe mould
The information of formula ", to ensure compressor operating in the secure mode, it also avoid high frequent and overload protection occur.
In one embodiment of the invention, detection unit 10 is used for the complete machine electric current for detecting air conditioner, and first judges list
Member 20 is used to judge whether the first current value of air conditioner is more than the first pre-set current value, and judges the second current value of air conditioner
Whether the second pre-set current value is less than, wherein, the first current value of air conditioner is the electricity of the air conditioner detected in the very first time
Flow valuve, the second current value of air conditioner is the current value of the air conditioner arrived in the second time detecting, when the second time was later than first
Between, the first pre-set current value is less than the second pre-set current value, wherein, if it is judged that the first current value of air conditioner is more than first
Second current value of pre-set current value and air conditioner is less than the second pre-set current value, it is determined that overload protection occurs in compressor.
In one embodiment of the invention, control unit 30 is additionally operable to when judging that overload protection occurs in compressor,
Control the outdoor fan of air conditioner to shut down first, then control compressor shutdown.If air conditioner is in refrigeration mode, control is empty
The indoor fan start of device is adjusted, or, if air conditioner is in heating mode, control the indoor fan of air conditioner to stop, so as to
After making compressor out of service, the comfortableness that air conditioner uses is improved.
Preferably, the air conditioner in the embodiment is air-conditioner with fixed frequency.The compressor of air-conditioner with fixed frequency does not have overload protection
Feedback function, when overload protection occurs in compressor, the main control computer of air-conditioning can not receive the overload protection information of compressor, meeting
Overload protection is carried out to high frequent.It can be counted by occurring the number of overload protection to compressor, judge to compress
Whether the number that overload protection occurs in machine has reached preset times, if it is judged that the number that overload protection occurs in compressor reaches
Preset times, it is determined that compressor breaks down, then indicates that the overload protection of compressor breaks down by exporting fault-signal,
Or control compressor is out of service.Further, it is also possible to export prompt message to remove the failure of compressor, compression is avoided
The number that machine frequently occurs overload protection exceedes the safety value of overload protection number and causes system pipeline frequently by pulse pressure
The impact of power, having reached, which reduces compressor, occurs the effect that overload protection easily triggers the possibility of system pipeline booster.
The embodiment of the present invention additionally provides a kind of air-conditioner with fixed frequency, it is necessary to explanation, the air-conditioner with fixed frequency of the embodiment
It can be used for overload of compressor protection control method and the device for performing the embodiment of the present invention.
Embodiments of the invention can protect control method on the premise of extra cost is not increased by overload of compressor
Overload of compressor protection control control is formulated, so as to avoid air conditioner, especially air-conditioner with fixed frequency, due to high frequent
Start and stop cause system pipeline frequently to be caused system pipeline that the danger of booster occurs by the impact of pulse, it also avoid pressing
Contracting machine is after out of service, and indoor and outdoor blower fan continues to operate, and particularly the problem of blowing a cold wind in the case of heating be present,
Improve the comfort of air conditioner.It is it should be noted that easy invention achieves compressor generation overload protection is reduced
Trigger the effect of the possibility of system pipeline booster.
Obviously, those skilled in the art should be understood that above-mentioned each module of the invention or each step can be with general
Computing device realize that they can be concentrated on single computing device, or be distributed in multiple computing devices and formed
Network on, alternatively, they can be realized with the program code that computing device can perform, it is thus possible to they are stored
Performed in the storage device by computing device, either they are fabricated to respectively each integrated circuit modules or by they
In multiple modules or step be fabricated to single integrated circuit module to realize.So, the present invention is not restricted to any specific
Hardware and software combines.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made any repaiies
Change, equivalent substitution, improvement etc., should be included in the scope of the protection.
Claims (13)
1. a kind of overload of compressor protects control method, it is characterised in that including：
The state of compressor in air conditioner is detected, obtains testing result；
Judge whether the compressor overload protection occurs according to the testing result；And
If it is judged that overload protection occurs in the compressor, control the blower fan of the air conditioner out of service；
If it is judged that overload protection occurs in the compressor, the overload of compressor protection control method also includes：
Count the compressor and the number of overload protection occur；
Judge whether the number that overload protection occurs in the compressor reaches preset times；And
If it is judged that the number that overload protection occurs in the compressor reaches the preset times, it is determined that the compressor goes out
Existing failure.
2. overload of compressor according to claim 1 protects control method, it is characterised in that it is determined that the compressor goes out
After existing failure, the overload of compressor protection control method also includes：
Fault-signal is exported, wherein, the fault-signal is used to indicate that the overload protection of the compressor to break down；Or
Control the compressor out of service.
3. overload of compressor according to claim 1 protects control method, it is characterised in that it is determined that the compressor goes out
After existing failure, the overload of compressor protection control method also includes：
Prompt message is exported, wherein, the prompt message is used to prompt the failure for removing the compressor, the prompt message bag
Include any one following prompt message：
Shutdown prompt message, for prompting to perform the air conditioner power-off or shutdown processing；And
Transform hint information, for prompting to change the operational mode of the air conditioner.
4. overload of compressor according to claim 1 protects control method, it is characterised in that
Carrying out detection to the state of compressor in air conditioner includes：The complete machine electric current of the air conditioner is detected,
Judge whether the compressor overload protection occurs according to the testing result：Judge the first current value of the air conditioner
Whether it is more than the first pre-set current value, and judges whether the second current value of the air conditioner is less than the second pre-set current value, its
In, the first current value of the air conditioner is the current value of the air conditioner detected in the very first time, the air conditioner
Second current value is the current value of the air conditioner arrived in the second time detecting, when second time is later than described first
Between, first pre-set current value is less than second pre-set current value,
Wherein, if it is judged that the first current value of the air conditioner is more than first pre-set current value and the air conditioner
The second current value be less than second pre-set current value, it is determined that there is overload protection in the compressor.
5. overload of compressor according to claim 1 protects control method, it is characterised in that if it is judged that the compression
There is overload protection in machine, and the overload of compressor protection control method also includes：
The outdoor fan of the air conditioner is controlled to shut down；
Control the compressor shutdown；
If the air conditioner is in refrigeration mode, the indoor fan of the air conditioner is controlled to start shooting；Or
If the air conditioner is in heating mode, the indoor fan of the air conditioner is controlled to stop.
6. overload of compressor according to claim 1 protects control method, it is characterised in that the air conditioner is empty for fixed frequency
Adjust device.
7. a kind of overload of compressor protects control device, it is characterised in that including：
Detection unit, for being detected to the state of compressor in air conditioner, obtain testing result；
First judging unit, for judging whether the compressor overload protection occurs according to the testing result；
And
Control unit, for when judging that overload protection occurs in the compressor, controlling the blower fan of the air conditioner to stop fortune
OK；
The overload of compressor protection control device also includes：
Statistic unit, for when judging that overload protection occurs in the compressor, counting the compressor and overload protection occur
Number；
Second judging unit, for judging whether the number that overload protection occurs in the compressor reaches preset times；
And
Determining unit, for when judging that the compressor number of overload protection occurs and reaches the preset times, it is determined that
The compressor breaks down.
8. overload of compressor according to claim 7 protects control device, it is characterised in that
The overload of compressor protection control device also includes：Output unit, for it is determined that the compressor breaks down it
Afterwards, fault-signal is exported, wherein, the fault-signal is used to indicate that the overload protection of the compressor to break down；Or
Described control unit is additionally operable to control the compressor out of service.
9. overload of compressor according to claim 7 protects control device, it is characterised in that the overload of compressor protection
Control device also includes：
Output unit, for it is determined that after compressor failure, exporting prompt message, wherein, the prompt message
For prompting the failure of the removing compressor, the prompt message includes any one following prompt message：Shutdown prompting letter
Breath, for prompting to perform the air conditioner power-off or shutdown processing；Transform hint information, for prompting to the air conditioner
Operational mode changed.
10. overload of compressor according to claim 7 protects control device, it is characterised in that
The detection unit is used for the complete machine electric current for detecting the air conditioner,
First judging unit is used to judge whether the first current value of the air conditioner is more than the first pre-set current value, and sentences
Whether the second current value of the disconnected air conditioner is less than the second pre-set current value, wherein, the first current value of the air conditioner is
The current value of the air conditioner detected in the very first time, the second current value of the air conditioner are to be arrived in the second time detecting
The air conditioner current value, second time is later than the very first time, and first pre-set current value is less than described
Second pre-set current value, wherein, if it is judged that the first current value of the air conditioner is more than first pre-set current value simultaneously
And the second current value of the air conditioner is less than second pre-set current value, it is determined that overload protection occurs in the compressor.
11. overload of compressor according to claim 7 protects control device, it is characterised in that described control unit is also used
When judging that overload protection occurs in the compressor, following control is performed：
The outdoor fan of the air conditioner is controlled to shut down；
Control the compressor shutdown；
If the air conditioner is in refrigeration mode, the indoor fan of the air conditioner is controlled to start shooting；Or
If the air conditioner is in heating mode, the indoor fan of the air conditioner is controlled to stop.
12. overload of compressor according to claim 7 protects control device, it is characterised in that the air conditioner is fixed frequency
Air conditioner.
13. a kind of air-conditioner with fixed frequency, it is characterised in that protected including the overload of compressor any one of claim 7 to 12
Protect control device.
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 CN105180362A (en) | 2015-12-23 |
| CN105180362B true 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) |
Families Citing this family (11)
| 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 |
| 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 |
| 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 |
| CN108332343A (en) * | 2017-07-21 | 2018-07-27 | 广东美的暖通设备有限公司 | Control method, control device and the air conditioner of air conditioner |
| CN109405175B (en) * | 2018-10-22 | 2021-03-12 | 珠海格力电器股份有限公司 | Fault clearing method and device, storage medium, equipment unit and terminal |
| 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 |
| 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 |
| CN110595015B (en) * | 2019-09-25 | 2020-12-11 | 珠海格力电器股份有限公司 | Adjusting method and device of frequency conversion equipment |
| CN112065704B (en) * | 2020-09-29 | 2022-07-08 | 广东芬尼克兹节能设备有限公司 | Compressor switch fault protection method and device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN104566772A (en) * | 2013-10-24 | 2015-04-29 | 广州南洋理工职业学院 | Air conditioner refrigeration overload protection method |
| 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 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR0140062B1 (en) * | 1993-05-21 | 1998-07-01 | 김광호 | Overload control method of air conditioner |
-
2015
- 2015-09-02 CN CN201510561334.0A patent/CN105180362B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN104566772A (en) * | 2013-10-24 | 2015-04-29 | 广州南洋理工职业学院 | Air conditioner refrigeration overload protection method |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105180362A (en) | 2015-12-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105180362B (en) | Overload of compressor protects control method and device and air-conditioner with fixed frequency | |
| CN108050663A (en) | Control method and device, air-conditioning and the storage medium of compressor self-shield | |
| CN103807982B (en) | Air-conditioner | |
| CN110094842B (en) | Air conditioner running state monitoring method | |
| CN104633864B (en) | Secondary refrigerant leakage detection method, device and air-conditioner outdoor unit for air-conditioning | |
| CN103383130B (en) | A kind of intelligent fresh air air-conditioning coordinated signals management method | |
| CN105953354B (en) | Multi-line system and its control method | |
| CN102345915A (en) | Fault operation control method of DC (direct current) convertible frequency air conditioner | |
| CN104913453A (en) | Anti-condensation control method, anti-condensation control system and air conditioner | |
| CN105674479A (en) | Operation control method and device for multi-split air conditioner | |
| CN202868923U (en) | Air conditioner | |
| CN105757908B (en) | Air-conditioner control method and device | |
| CN101814717A (en) | Compressor protection method for air conditioner | |
| CN104421139A (en) | Operation control method and device for compressor | |
| CN106839255A (en) | Convertible frequency air-conditioner sensor fault processing method | |
| CN105066370B (en) | Overload of compressor protects control method and device and air conditioner | |
| CN107228452B (en) | UPS power supply air-conditioner control method and air conditioner | |
| CN112361532A (en) | Dust removal method and device for outdoor unit of household air conditioner | |
| CN110864428B (en) | Air conditioner refrigerant leakage protection circuit, method and device and computer storage medium | |
| CN102109211A (en) | Refrigeration dehumidifying device and control method thereof | |
| CN110190740A (en) | Fault-tolerant guard method, circuit and the air conditioner of pfc circuit | |
| CN106839334A (en) | A kind of air-conditioner self-protecting device and the air-conditioner with the self-protecting device | |
| CN107166648A (en) | A kind of air conditioner supply self adaptation control device and air conditioner | |
| CN107192022A (en) | Air conditioner and air-conditioner control method, device and storage medium | |
| CN202630311U (en) | Control device of multi-connected air conditioner |
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 |