CN103940039B - Air-conditioner and its running status determination methods - Google Patents
Air-conditioner and its running status determination methods Download PDFInfo
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- CN103940039B CN103940039B CN201410134468.XA CN201410134468A CN103940039B CN 103940039 B CN103940039 B CN 103940039B CN 201410134468 A CN201410134468 A CN 201410134468A CN 103940039 B CN103940039 B CN 103940039B
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Abstract
The present invention proposes a kind of air-conditioner and its running status determination methods, wherein, conditioners running conditions determination methods are comprised the following steps：The internal temperature and ambient temperature of motor in detection air-conditioner, and detect the supply voltage of motor；Motor whether normal operation is judged according to the internal temperature and ambient temperature of motor；If motor operation is normal, judged according to the internal temperature and ambient temperature stifled state dirty to air-conditioner of supply voltage and motor.The air-conditioner and its running status determination methods of the present invention, can judge to the dirty stifled state of the running status of motor of air conditioner and air-conditioner, and the normal maintenance for air-conditioner provides foundation, and determination methods are simple, implements easy, and air-conditioner is more intelligent.
Description
Technical field
The present invention relates to technical field of electric appliances, more particularly to a kind of air-conditioner, and conditioners running conditions determination methods.
Background technology
With growth in the living standard, air-conditioner is more and more universal.Air-conditioner has brought comfortable impression, but
It is, during the use of air-conditioner, it is to avoid abnormal conditions do not occur, the motor of such as air-conditioner occurs stall or disconnected phase,
Or the vaporizer of air-conditioner, filter screen or dust accumulation of condenser or dirty stifled, air-conditioner misoperation is thus resulted in, is unfavorable for air-conditioner
Maintenance, and in correlation technique, preferably realize the method for voluntarily diagnosing and judging conditioners running conditions.
The content of the invention
The purpose of the present invention is intended at least solve above-mentioned technical problem to a certain extent.
The application is the understanding of problems with and the fact to be found to make based on inventor：
Heating is produced heat in running by the motor of air-conditioner, and will stabilise at one after running a period of time
Individual state of temperature, this state of temperature are that the temperature of motor internal heater is certain with the difference of the ambient temperature of motor.For sky
For adjusting device, when motor operation it is stable, when air channel ventilation is unobstructed, the running temperature state of motor be also it is basicly stable, will be with
The change of ambient temperature and change.In addition, when exception occurs in motor operation or control circuit breaks down, motor internal temperature
The difference of degree and ambient temperature will be sharply increased or be reduced, or when air channel changes, for example, for air-conditioner, room
The vaporizer of interior machine or air intake filter screen occur it is dirty stifled, or during the dirty stifled or frosting of outdoor condenser, as intake diminishes, electricity
The output of machine will also diminish, and the internal temperature of motor will also reduce with the difference of ambient temperature.
For this purpose, it is an object of the present invention to proposing a kind of conditioners running conditions determination methods, the air-conditioner runs
State judging method can be judged to the dirty stifled state of the running status of motor of air conditioner and air-conditioner, be air-conditioner just
Often maintenance provides foundation, and determination methods are simple, implements easy, and air-conditioner is more intelligent.
Further object is that proposing a kind of air-conditioner.
To reach above-mentioned purpose, an aspect of of the present present invention embodiment proposes a kind of conditioners running conditions determination methods, should
Determination methods are comprised the following steps：The internal temperature and ambient temperature of motor in detection air-conditioner, and detect the confession of the motor
Piezoelectric voltage；The motor whether normal operation is judged according to the internal temperature and ambient temperature of the motor；If the motor
Normal operation, then the internal temperature and ambient temperature stifled shape dirty to the air-conditioner according to the supply voltage and the motor
State is judged.
Conditioners running conditions determination methods according to embodiments of the present invention, according to the internal temperature and environment temperature of motor
Degree, and the supply voltage of motor, you can voluntarily judge the running status of air-conditioner, for example, can pass through internal temperature and environment
The temperature difference of temperature judges the running status of motor, and then when motor operation is normal, according to temperature difference and supply voltage to sky
Adjust the dirty stifled state of device to be judged, be that the judgement of conditioners running conditions is provided a method that, and then for air-conditioner just
Often safeguard that, there is provided basis for estimation, determination methods are simple, easily implement.
Specifically, in some embodiments of the invention, institute is judged according to the internal temperature and ambient temperature of the motor
Whether normal operation is specifically included to state motor：The internal temperature of the motor and the temperature difference of ambient temperature are calculated, and obtains institute
State the stall temperature difference threshold value of motor；Judge the temperature difference whether more than or equal to stall temperature difference threshold value；If the temperature
Difference then judges that the motor occurs stall failure, carries out alarm more than or equal to the stall temperature difference threshold value.In addition, such as
Whether really described temperature difference is less than the stall temperature difference threshold value, determine whether the temperature difference in the first temperature difference model
Enclose；If the temperature difference be in the first temperature difference scope, judge the motor access failure power supply or fault or
In decompression state.
Specifically, in some embodiments of the invention, according to the supply voltage and the internal temperature of the motor
Stifled state dirty to the air-conditioner with ambient temperature carries out judgement and specifically includes：Obtain the corresponding electricity of supply voltage of the motor
Pressure rate range；Calculate the internal temperature of the motor and the temperature difference of ambient temperature；Obtain the voltage class ranges correspondence
Temperature difference threshold, and the temperature difference threshold temperature difference corresponding with the voltage class ranges is compared；If the temperature
Degree difference is in dirty stifled state less than or equal to the temperature difference threshold, the then air-conditioner；If the temperature difference is more than the temperature
Difference limen value, then the air-conditioner do not occur dirty stifled.
To reach above-mentioned purpose, another aspect of the present invention embodiment proposes a kind of air-conditioner, and the air-conditioner includes：Electricity
Machine；First temperature detector, for detecting the internal temperature of the motor；Second temperature detector, for detecting the motor
Ambient temperature；Voltage detector, for detecting the supply voltage of the motor；Controller, the controller is according to the electricity
The internal temperature and ambient temperature of machine judges the motor whether normal operation, and when the motor operation is normal, further
Judged according to the supply voltage and the internal temperature and ambient temperature stifled state dirty to the air-conditioner.
Air-conditioner according to embodiments of the present invention, by controller according to the internal temperature and ambient temperature of motor, and
The supply voltage of motor, you can voluntarily judge the running status of air-conditioner, such as controller is according to internal temperature and ambient temperature
Temperature difference judge the running status of motor, and then when motor operation is normal, according to temperature difference and supply voltage to air-conditioner
Dirty stifled state judged, and then be voluntarily judged as that the conventional maintenance of air-conditioner provides basis for estimation by air-conditioner, it is empty
Adjust device more intelligent.
Specifically, in some embodiments of the invention, first temperature detector may be located at the ferrum of the motor
Core or cover internal.
Specifically, in some embodiments of the invention, the second temperature detector and the motor at a distance of it is default away from
From being arranged on the periphery of the motor to detect the ambient temperature of the motor.
In addition, in some embodiments of the invention, above-mentioned air-conditioner also includes first memory, for storing motor
Stall temperature difference and the first temperature difference scope, and it is stored in the motor normally operation and when the air-conditioner occurs dirty stifled pair
Answer the temperature difference of the internal temperature and ambient temperature of the motor of the different supply voltages；Second memory, for storing
The dirty stifled status information of the air-conditioner.
In some embodiments of the invention, the controller is additionally operable to internal temperature and the environment temperature for calculating the motor
The temperature difference of degree, and it is more than or equal to stall temperature difference threshold value in the temperature difference, judge that the motor occurs stall failure, with
And when the temperature difference is less than the stall temperature difference threshold value, determine whether the temperature difference whether in the first temperature difference
In the range of, and when the temperature difference is in the first temperature difference scope, judge the motor access failure power supply or circuit event
Barrier is in decompression state.
In some embodiments of the invention, the controller is additionally operable to the corresponding electricity of supply voltage for obtaining the motor
Pressure rate range, and the internal temperature of the motor and the temperature difference of ambient temperature are calculated, by the temperature difference and the voltage
The corresponding temperature difference threshold of rate range is compared, and when the temperature difference is less than or equal to the temperature difference threshold, then judges institute
Air-conditioner is stated in dirty stifled state, when the temperature difference is more than the temperature difference threshold, then judges that the air-conditioner does not occur dirty
It is stifled.
The additional aspect of the present invention and advantage will be set forth in part in the description, and partly will become from the following description
Obtain substantially, or recognized by the practice of the present invention.
Description of the drawings
Of the invention above-mentioned and/or additional aspect and advantage will become from the following description of the accompanying drawings of embodiments
It is substantially and easy to understand, wherein：
Fig. 1 is the flow chart of the conditioners running conditions determination methods according to one embodiment of the present of invention；
Fig. 2 is the flow chart of the conditioners running conditions determination methods of a specific embodiment according to the present invention；
Fig. 3 is to motor operating state in conditioners running conditions determination methods according to one embodiment of the present of invention
The flow chart of determination methods；
Fig. 4 is the flow chart of the determination methods of the motor operating state of another specific embodiment according to the present invention；
Fig. 5 is stifled shape dirty to air-conditioner in conditioners running conditions determination methods according to an alternative embodiment of the invention
The flow chart of the determination methods of state；
Fig. 6 is the flow chart of the determination methods of the dirty stifled state of air-conditioner of a specific embodiment according to the present invention；
Fig. 7 is the block diagram of the air-conditioner according to one embodiment of the present of invention；
Fig. 8 is the schematic diagram of motor in air-conditioner according to one embodiment of the present of invention；And
Fig. 9 is the schematic diagram of the structure connection of the air-conditioner according to an alternative embodiment of the invention.
Reference
Air-conditioner 100, motor 10, the first temperature detector 20, second temperature detector 30, voltage detector 40 and control
Device 50, the lines A and motor lead-out wire B of temperature sensor, first memory 60 and second memory 70.
Specific embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from start to finish
Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached
The embodiment of figure description is exemplary, is only used for explaining the present invention, and is not construed as limiting the claims.
Following disclosure provides many different embodiments or example is used for realizing the different structure of the present invention.For letter
Change disclosure of the invention, hereinafter the part and setting of specific examples are described.Certainly, they are only merely illustrative, and
Purpose does not lie in the restriction present invention.Additionally, the present invention can in different examples repeat reference numerals and/or letter.It is this heavy
It is the relation between itself not indicating discussed various embodiments and/or arranging for purposes of simplicity and clarity again.This
Outward, the invention provides various specific technique and material example, but those of ordinary skill in the art can be appreciated that
The use of the applicable property and/or other materials of other techniques.In addition, fisrt feature described below second feature it
" on " structure can include that the first and second features be formed as the embodiment of directly contact, it is also possible to including other feature shape
Into the embodiment between the first and second features, such first and second feature may not be directly contact.
Additionally, term " first ", " second " are only used for describing purpose, and it is not intended that indicating or implying relative importance
Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can express or
Implicitly include at least one this feature.In describing the invention, " multiple " are meant that at least two, such as two, three
It is individual etc., unless otherwise expressly limited specifically.
In describing the invention, it should be noted that unless otherwise prescribed and limit, term " installation ", " being connected ",
" connection " should be interpreted broadly, for example, it may be mechanically connected or electrical connection, or the connection of two element internals, can
Being to be joined directly together, it is also possible to be indirectly connected to by intermediary, for the ordinary skill in the art, can basis
Concrete condition understands the concrete meaning of above-mentioned term.
With reference to explained below and accompanying drawing, it will be clear that in terms of these and other of embodiments of the invention.In these descriptions
In accompanying drawing, some particular implementations in embodiments of the invention are specifically disclosed, represent the enforcement for implementing the present invention
Some modes of the principle of example, but it is to be understood that the scope of embodiments of the invention is not limited.Conversely, the present invention
Embodiment includes all changes, modification and the equivalent fallen in the range of the spirit and intension of attached claims.
Conditioners running conditions determination methods and the air-conditioner for proposing according to embodiments of the present invention is described with reference to the accompanying drawings.
First, the conditioners running conditions determination methods that the embodiment of the present invention is proposed are illustrated.Fig. 1 is according to this
The flow chart of the conditioners running conditions determination methods of bright one embodiment.As shown in figure 1, the air-conditioner of the embodiment of the present invention
Running status determination methods are comprised the following steps：
S1, detects the internal temperature and ambient temperature of motor in air-conditioner, and detects the supply voltage of motor.
Specifically, in one embodiment of the invention, can pass through to inlay or be fixed on the temperature sensing of motor internal
Device detects the internal temperature of air-conditioner, and the ambient temperature of motor is detected by being fixed on the temperature sensor of motor periphery, while
The supply voltage of motor is detected by voltage detector, the supply voltage of the motor of air-conditioner is appreciated that in the embodiment of the present invention
For line voltage.
S2, judges motor whether normal operation according to the internal temperature and ambient temperature of motor.
Specifically, the motor operation in air-conditioner breaks down or when control circuit breaks down, the internal temperature of motor
Can sharply increase or reduce with the difference of ambient temperature, and then can be by the difference of the internal temperature of motor and ambient temperature and electricity
The empirical data of machine operation is compared, such that it is able to judge whether motor operation is normal.In embodiments of the present invention, to motor
The judge process of running status is described in detail below.
S3, if motor operation is normal, according to the internal temperature and ambient temperature of supply voltage and motor to air-conditioning
The dirty stifled state of device is judged.
Specifically, if motor operation is normal, further the dirty stifled state of air-conditioner can be judged.For example,
The vaporizer of the indoor set of air-conditioner or air intake filter screen occur it is dirty stifled, or during the dirty stifled or frosting of outdoor condenser, due to air intake
Amount diminishes, and the output of motor also will diminish therewith, and the internal temperature of motor will reduce with the temperature difference of ambient temperature.
It should be noted that engineer can simulate air-conditioner in advance there is dirty blocking up for example in vaporizer, filter screen or condensation
Device laying dust is dirty stifled, and the temperature difference of the internal temperature and ambient temperature of motor is tested out under different power voltage, and by this
A little data are stored, wherein, under normal circumstances, power network fluctuation scope is between ± the 15% of analog voltage.
For example, as shown in table 1, be one group of air-conditioner dry run data, voltage pulsation, air-conditioner occur it is dirty stifled and
The contrast relationship table of motor operation rotating speed when not occurring dirty stifled, this data constitute the basic structure of simulation air-conditioner service data.
It is understood that the data in table 1 only meet the requirement of a air-conditioning, and data are intended merely to preferably to illustrate this and judged
Journey.Wherein, temperature difference represents the ruuning situation of certain a air-conditioning, does not imply that all of air-conditioning all meets rotating speed rule, different
The motor of air-conditioner differ there is the dirty stifled temperature difference with not dirty stifled operation.Wherein, motor temperature difference is needed according to reality
Border situation is determined, and this temperature difference only reflects the temperature difference of such air-conditioning.
Specifically, for example, when outer power voltage be the supply voltage of motor in 230V when, air-conditioner condenser and
Air channel it is dirty it is stifled in the case of motor principal phase temperature difference be 45 DEG C, and the motor principal phase temperature in the case of condenser and air channel cleaning
Difference is 51 DEG C, i.e., in 230V, air-conditioner is in clean state and dirty stifled state by the change of the temperature difference for having 6 DEG C.In the same manner, electricity
Machine parafacies also has the change of 5 DEG C of temperature difference.
When the dirty stifled state to air-conditioner judges, you can be line voltage by the supply voltage of motor, Yi Ji electricity
The temperature difference of machine indoor temperature and ambient temperature, is compared with the threshold value of the temperature difference under the corresponding supply voltage for preserving, from
And determine the dirty stifled state of air-conditioner.In an embodiment of the present invention, the concrete judge process of stifled state dirty to air-conditioner is under
Face is described in detail.
Table 1
The explanation to conditioners running conditions determination methods based on more than, it is seen then that when needing to carry out running state of air conditioner to sentence
When disconnected, machine operating condition is first determined whether, if motor operation is normal, into the dirty stifled judgment model of next stage, if
Motor operation exception, then report corresponding fault message.Into after dirty stifled judgement, dirty stifled judgement is completed, then carry out corresponding event
Barrier information or operating condition storage.The conditioners running conditions for being illustrated in figure 2 a specific embodiment of the invention are sentenced
Disconnected detailed process, including：
S201, into the motor operating state and dirty stifled detection pattern of air-conditioner.
After start-up, control air-conditioner and enter conditioners running conditions judge process, such as into motor operating state
With dirty stifled detection pattern.
S202, into motor operating state judge process；
First motor operating state is judged.
S203, judges whether motor operation is normal.
If motor operation is normal, into step S204, otherwise, into step S205.
S204, into the dirty stifled condition adjudgement process of air-conditioner.
S205, reports and submits to motor operating state or failure.
S206, judges that whether dirty air-conditioner is stifled.
Terminate if air-conditioner does not occur dirty blocking up, otherwise into step S207.
Conditioners running conditions or failure are reported and submitted by S207.
Specifically, the judgement below in various embodiments to the motor operating state of air-conditioner is described in detail,
For example, judge whether motor occurs stall or access failure power supply or decompression or fault.Fig. 3 is a reality according to the present invention
Flow chart motor operating state judged in applying the conditioners running conditions determination methods of example, as shown in figure 3, according to motor
Internal temperature and ambient temperature judge whether normal operation specifically includes following steps to motor：
S301, calculates the internal temperature of motor and the temperature difference of ambient temperature, and obtains the stall temperature difference threshold value of motor.
Wherein it is possible to the stall temperature difference threshold value of the motor that prestores.
Whether S302, judge temperature difference more than or equal to stall temperature difference threshold value.
Wherein, when stall temperature difference threshold value can be understood as motor generation stall, the internal temperature and ambient temperature of motor
Temperature difference experiment value.For example motor supply voltage be 230V when, motor occur stall when motor internal temperature with
The temperature difference of ambient temperature can be set to 70 DEG C for 70 DEG C, i.e. stall temperature difference threshold value.Such that it is able to the inside temperature according to motor
The temperature difference of degree and ambient temperature, and the relation of temperature difference during motor generation stall, judge whether motor occurs stall failure.
If temperature difference is more than or equal to stall temperature difference threshold value, into step S303, otherwise, if temperature difference is less than stall temperature
Difference limen value, into step S304.
S303, if temperature difference is more than or equal to stall temperature difference threshold value, there is stall failure, carry out warning and carry in motor
Show.
For example, when the supply voltage of motor is 230V, the internal temperature of motor is 75 DEG C with the temperature difference of ambient temperature,
It is serious that then the motor feels hot, it can be determined that motor occurs stall failure, fault message is stored, and carries out alarm.
In addition, in another embodiment of the present invention, as shown in figure 3, also wrapping to the judge process of motor operating state
Include：
Whether S304, determine whether temperature difference in the first temperature difference scope.
Wherein, the first temperature difference scope can be understood as motor occur line fault or during decompression motor internal temperature with
The temperature difference of ambient temperature, in the case of without being powered, the internal temperature of motor is very connect with the temperature difference of ambient temperature
It is near or equal.First temperature difference scope may be set in ± 10 DEG C, illustrate that when temperature difference is in ± 10 DEG C motor does not work, electricity
Machine circuit failure or decompression.It should be noted that the first temperature difference scope be one based on the numerical value under real use state,
± 5 DEG C, or less scope can be set.
S305, if temperature difference is in the first temperature difference scope, judges motor access failure power supply or fault or place
In decompression state.
If the temperature difference of the internal temperature of motor and ambient temperature is in the first temperature difference scope, illustrate that the motor feels hot very
It is little, or do not generate heat at all, judge that now motor power does not lead to or fault or is in decompression state, and fault message is deposited
Storage.
If in addition, motor operating state is not above-mentioned stall or disconnected phase situation, or having been powered on, illustrate motor just
Often work.
Specifically, Fig. 4 is motor to be transported in the conditioners running conditions determination methods according to one embodiment of the present of invention
The flow chart of the process of row condition adjudgement.Comprise the following steps as shown in Figure 4：
S401, starts timing.
After motor operating state judge process starts, timing is carried out.
S402, judges whether timing time terminates.
If timing time terminates, execution step S403 otherwise proceeds timing.
S403, collection motor internal temperature and ambient temperature.
Timing time terminates, then the internal temperature and environment of the temperature data of collecting temperature sensor feedback, including motor
Temperature.
S404, calculates the temperature difference of motor internal temperature and ambient temperature.
Whether S405, judge temperature difference more than or equal to stall temperature difference threshold value.
If it is, step S406 is entered, otherwise into step S407.
S406, reports and submits motor that stall failure occurs.
Whether S407, judge temperature difference in the first temperature difference scope.
If it is, step S408 is entered, otherwise into step S409.
S408, reports and submits motor access failure power supply or fault or in decompression state.
S409, motor normally run.
Specifically, the judgement of stifled state dirty to air-conditioner is illustrated below, and Fig. 5 is according to one embodiment of the present of invention
Conditioners running conditions determination methods in stifled condition adjudgement dirty to air-conditioner flow chart, as shown in figure 5, according to supply voltage
And the internal temperature and ambient temperature stifled state dirty to air-conditioner of motor carries out judgement and specifically includes：
S501, obtains the corresponding voltage class ranges of supply voltage of motor.
It is understood that prestoring simulation air-conditioner in dirty stifled state for example in vaporizer, filter screen or dust accumulation of condenser
Or it is dirty stifled, and the temperature difference of the internal temperature and ambient temperature of motor is tested out under different power voltage, the ripple of supply voltage
Dynamic, the supply voltage of motor is in different voltage class ranges, obtains the supply voltage of motor, and then with the voltage for preserving etc.
Level scope is compared, and then obtains the corresponding voltage class ranges of supply voltage.
S502, calculates the internal temperature of motor and the temperature difference of ambient temperature.
S503, obtains the corresponding temperature difference threshold of voltage class ranges, and by temperature temperature difference corresponding with voltage class ranges
Difference limen value is compared.
For example, temperature threshold such as electric pressure model in voltage class ranges that the supply voltage of acquisition motor is located at
The maximum of the temperature difference in enclosing, and the maximum of the temperature value in the temperature difference of motor and the voltage class ranges is compared
Compared with if temperature difference is less than or equal to the temperature threshold, into step S504, otherwise into step S505.
S504, if temperature difference is less than or equal to temperature difference threshold, air-conditioner is in dirty stifled state.
For example, when the supply voltage of motor is in the voltage class ranges of 230V, the temperature difference in this voltage class ranges
Threshold value is 45 DEG C, is 44 DEG C when the internal temperature of the motor for obtaining is calculated with the temperature difference of ambient temperature, then judges at air-conditioner
In dirty stifled state, and preserve dirty stifled status information.
S505, if temperature difference is more than temperature difference threshold, air-conditioner does not occur dirty stifled.
For example, it is 46 DEG C to calculate the internal temperature of the motor for obtaining with the temperature difference of ambient temperature, then judge air-conditioner not
Generation is dirty stifled, and preserves judgement information.
For example, Fig. 6 be according to the present invention a specific embodiment conditioners running conditions judge in it is dirty to air-conditioner
The flow chart of stifled condition adjudgement process.As shown in fig. 6, specifically including：
S601, obtains the supply voltage of motor.
For example, start to carry out the dirty stifled state of air-conditioner after judgement starts, to detect line voltage.
S602, carries out timing.
Timing is proceeded by, and opens blower fan work.
S603, obtains the corresponding voltage class ranges of motor supply voltage.
Specifically, judge which kind of voltage class ranges supply voltage is in, for example, judge that whether the supply voltage of motor exists
Voltage class ranges 1, if not in voltage class ranges 1, judged whether in other voltage class ranges again, until really
Determine the voltage class ranges of motor supply voltage.
S604, judges whether timing terminates.
If timing time terminates, into step S605, otherwise continue timing.
S605, gathers the temperature data of motor.
For example, the motor temperature of collecting temperature sensor feedback includes internal temperature and ambient temperature.
S606, calculates temperature difference.
The temperature difference of the internal temperature with ambient temperature of motor is calculated.
S607, judges whether temperature difference is less than or equal to the temperature difference threshold of motor supply voltage corresponding voltage rate range.
If it is, step S608 is entered, otherwise into step S609.
S608, determines air-conditioner in dust-full or dirty stifled state.
And enter step S610.
S609, determines air-conditioner in not dust-full or dirty stifled state.
And enter step S610.
S610, preserves air-conditioner status information.
Air-conditioner status information is stored, in case this information is fed back during air-conditioning self-inspection.
In sum, conditioners running conditions determination methods according to embodiments of the present invention, according to the internal temperature of motor
And ambient temperature, and the supply voltage of motor, you can voluntarily judge the running status of air-conditioner, for example can be by internal temperature
The temperature difference of degree and ambient temperature judges the running status of motor, and then when motor operation is normal, according to temperature difference and power supply
Voltage is judged to the dirty stifled state of air-conditioner, is that the judgement of conditioners running conditions is provided a method that, and then is sky
The conventional maintenance of device is adjusted to provide basis for estimation, determination methods are simple, easily implement.
A kind of air-conditioner for proposing according to embodiments of the present invention is described with reference to the accompanying drawings.
Fig. 7 is the block diagram of the air-conditioner proposed according to one embodiment of the present of invention.As shown in fig. 7, the embodiment of the present invention
Air-conditioner 100 include motor 10, the first temperature detector 20, second temperature detector 30, voltage detector 40 and controller
50。
Wherein, motor 10 is the power resources of the blower fan of air-conditioner 100, drives the fan blade of blower fan to move to form air stream
It is dynamic, air quantity is produced, heat is operationally produced.First temperature detector 20 is used to detect the internal temperature of motor 10 that second is warm
Degree detector 30 is used for the ambient temperature for detecting motor 10, and voltage detector 40 is used for the supply voltage for detecting motor 10, at this
In some embodiments of invention, the supply voltage of motor 10 can be understood as line voltage.Controller 50 is according in motor 10
Portion's temperature and ambient temperature judge the whether normal operation of motor 10, and in 10 normal operation of motor, further according to power supply electricity
Pressure and internal temperature and ambient temperature are judged to the dirty stifled state of air-conditioner 100.
Specifically, controller 50 receives the first temperature detector 20, second temperature detector 30 and voltage detector 40
Temperature and voltage feedback signal, and then the temperature difference and motor 10 of the internal temperature according to motor 10 and ambient temperature
Supply voltage judges to the running status of air-conditioner 100, for example, judges the running status of motor 10, judge air-conditioner 100
Dirty stifled state.
Specifically, Fig. 8 is the schematic diagram of the motor of the air-conditioner of a specific embodiment according to the present invention.Such as Fig. 8 institutes
Show, the first temperature detector 20 may be located at the iron core or cover internal of motor 10.Motor 10 is run under outside power on,
Heat and temperature are produced when stable, the first temperature detector 20, can be i.e. by being embedded in electric machine iron core or cover internal
When detect motor 10 internal temperature change, when motor 10 is stable, the temperature change of motor 10 is less, Temperature Feedback letter
Number can be sent to controller 50 by the lines A of the first such as temperature sensor of temperature detector 20.
Second temperature detector 30 is arranged on the periphery of motor 10 with motor 10 at a distance of predeterminable range such as distance D
To detect the ambient temperature of motor 10, for example, it is fixed on the lead-out wire B of motor 10 by holder 301, for detecting motor
The ambient temperature of 10 peripheries, temperature feedback signal can be sent out by the lines A of such as temperature sensor of second temperature detector 30
Deliver to controller 50.
In an embodiment of the present invention, when the operation of motor 10 is broken down or control circuit breaks down, motor 10
The difference of internal temperature and ambient temperature can be sharply increased or be reduced, so as to controller 50 can be by by the inside temperature of motor 10
The empirical data that the difference of degree and ambient temperature is run with motor 10 is compared, and then judges whether motor 10 runs normal.
In addition, if 10 normal operation of motor, then further can judge to the dirty stifled state of air-conditioner 100.Example
Such as, the vaporizer of the indoor set of air-conditioner 100 or air intake filter screen occur it is dirty stifled, or during the dirty stifled or frosting of outdoor condenser, by
Diminish in intake, the output of motor 10 also will diminish therewith, and the internal temperature of motor 10 will subtract with the temperature difference of ambient temperature
It is little.
It should be noted that engineer can simulate air-conditioner 100 in advance there is dirty blocking up for example in vaporizer, filter screen or cold
Condenser laying dust is dirty stifled, and the temperature difference of the internal temperature and ambient temperature of motor 10 is tested out under different power voltage, and
These data are stored, wherein, under normal circumstances, power network fluctuation scope is between ± the 15% of analog voltage.For example, such as
Shown in table 1, it is the dry run data of one group of air-conditioner 100, occurs dirty stifled in voltage pulsation, air-conditioner 100 and do not occur dirty
The contrast relationship table of motor operation rotating speed when stifled, this data constitute the basic structure of simulation air-conditioner service data.
For example, when the voltage of the power supply 80 in external power source such as Fig. 9 be the supply voltage of motor 10 in 230V when, in sky
Adjust device 100 condenser and air channel it is dirty it is stifled in the case of motor principal phase temperature difference be 45 DEG C, and in condenser and air channel cleaning feelings
Motor principal phase temperature difference under condition is 51 DEG C, i.e., in 230V, air-conditioner 100 will have 6 DEG C in clean state and dirty stifled state
Temperature difference change.In the same manner, motor parafacies also has the change of 5 DEG C of temperature difference.Thus in the dirty stifled state to air-conditioner 100
When being judged, the supply voltage of motor 10 can be line voltage by controller 50, and the indoor temperature and ring of motor 10
The temperature difference of border temperature, is compared with the threshold value of the temperature difference under the corresponding supply voltage for preserving, so that it is determined that air-conditioner 100
Dirty stifled state.
In one embodiment of the invention, as shown in figure 9, above-mentioned air-conditioner 100 can also include first memory 60
With second memory 70.Wherein, first memory 60 is used for the stall temperature difference and the first temperature difference scope for storing motor 10, with
And during for being stored in 10 normal operation of motor and dirty stifled air-conditioner 100, correspond to the internal temperature of the motor 10 of different power voltage
With the temperature difference of ambient temperature；Second memory 70 is used for the dirty stifled status information for storing air-conditioner 100.Wherein, wherein, stall
When temperature difference threshold value can be understood as the generation stall of motor 10, the experiment of the internal temperature of motor 10 and the temperature difference of ambient temperature
Value.First temperature difference scope can be understood as the internal temperature and environment of the motor 10 when there is line fault or decompression of motor 10
The temperature difference of temperature, in the case of without being powered, the internal temperature of motor 10 is very close to the temperature difference of ambient temperature
Or it is equal.
Explanation based on more than to 100 running status judge process of air-conditioner, it is seen then that when air-conditioner 100 carries out operation shape
When state judges, controller 50 first calculates the temperature difference of internal temperature and the ambient temperature of motor 10, and by temperature difference and first
The stall temperature difference threshold value of the motor 10 stored in memorizer 60 and the first temperature difference scope are compared, to judge motor 10
Operating condition, if 10 operation exception of motor, reports corresponding fault message, if 10 normal operation of motor, into next
The dirty stifled judgment model in stage.Into after dirty stifled judgement, controller 50 is by the supply voltage and internal temperature and ring of motor 10
The temperature difference of border temperature is compared with the corresponding temperature difference stored in first memory 60, with to the dirty stifled of air-conditioner 100
State is judged, completes dirty stifled judgement, then corresponding fault message or operating condition are stored in second memory 70.
Specifically, the judgement below in various embodiments to 100 running status of air-conditioner is described in detail, example
Such as, judge whether motor 10 occurs stall or access failure power supply or decompression or fault, or the dirty stifled shape to air-conditioner 100
State is judged.
First air-conditioner 100 is realized to be described in detail the judge process of 10 running status of motor.Specifically, control
Device 50 calculates the internal temperature of motor 10 and the temperature difference of ambient temperature, and is more than or equal to stall temperature difference threshold value in temperature difference
When, judge that motor 10 occurs stall failure, and when temperature difference is less than stall temperature difference threshold value, determine whether that temperature difference is
It is no to be in the first temperature difference scope, and when temperature difference is in the first temperature difference scope, judge 10 access failure power supply of motor or electricity
Road failure is in decompression state.
Specifically, for example, when the supply voltage of motor is 230V, there is the internal temperature of motor 10 during stall in motor 10
70 DEG C can be set to for 70 DEG C, i.e. stall temperature difference threshold value with the temperature difference of ambient temperature.Such that it is able to according in motor 10
The temperature difference of portion's temperature and ambient temperature, and the relation of the temperature difference during generation stall of motor 10, judge whether motor blocks up
Turn failure.If temperature difference is more than or equal to stall temperature difference threshold value, controller 50 judges that motor 10 occurs stall failure, and
Carry out alarm.For example, when the supply voltage of motor 10 is 230V, the internal temperature of motor 10 and the temperature of ambient temperature
Difference is 75 DEG C, then motor 10 generates heat seriously, and controller 50 judges that motor occurs stall failure, fault message is stored in second and is deposited
In reservoir 70, and carry out alarm.
In addition, if controller 50 judges that the temperature difference of motor 10 less than stall temperature difference threshold value, then determines whether temperature
Whether degree difference is in the range of the first temperature difference.First temperature difference scope may be set in ± 10 DEG C, when temperature difference is at ± 10 DEG C
When interior illustrate motor 10 do not work, the line fault of motor 10 or be in decompression state.It should be noted that the first temperature difference model
Enclose is one based on the numerical value under real use state, it is also possible to set ± 5 DEG C, or less scope.If motor 10
Internal temperature is in the first temperature difference scope with the temperature difference of ambient temperature, illustrates the heating very little of motor 10, or does not generate heat at all,
Judge that now 10 power supply of motor does not lead to or fault or is in decompression state, and is stored in second memory 60 by fault message
In.If in addition, 10 running status of motor is not above-mentioned stall situation, or having been powered on, motor normal work is illustrated.
The judge process of stifled state dirty to air-conditioner 100 is described in detail below.Specifically, controller 50 obtains motor
The 10 corresponding voltage class ranges of supply voltage, and the internal temperature of motor 10 and the temperature difference of ambient temperature are calculated, by temperature
Degree difference temperature difference threshold corresponding with voltage class ranges is compared, and when temperature difference is less than or equal to temperature difference threshold, then judges
Air-conditioner 100 is in dirty stifled state, when temperature difference is more than the temperature difference threshold, then judges that air-conditioner 100 does not occur dirty stifled.
It is understood that prestore in first memory 60 simulation air-conditioner 100 dirty stifled state for example vaporizer,
Filter screen or dust accumulation of condenser or dirty stifled, and the internal temperature and ambient temperature of the motor 10 tested out under different power voltage
Temperature difference.The fluctuation of supply voltage, the supply voltage of motor 10 are in different voltage class ranges, and controller 50 obtains motor
10 supply voltage, and then be compared with the voltage class ranges for preserving, and then obtain the corresponding electric pressure of supply voltage
Scope.
Specifically, controller 50 calculates the internal temperature of motor 10 and the temperature difference of ambient temperature, obtains the confession of motor 10
The maximum of the temperature difference in the temperature difference threshold in voltage class ranges that piezoelectric voltage is located at such as voltage class ranges, and will
The maximum of the temperature difference in the temperature difference of motor 10 and the voltage class ranges is compared, if temperature difference is less than or equal to
The temperature difference threshold, then controller 50 judge air-conditioner 100 be in dirty stifled state.For example, the supply voltage of motor 10 is in 230V
Voltage class ranges when, the temperature difference threshold in this voltage class ranges is 45 DEG C, and controller 50 calculates the motor 10 for obtaining
The temperature difference of internal temperature and ambient temperature is 44 DEG C, then judge that air-conditioner 100 is in dirty stifled state, and by dirty stifled status information
It is stored in second memory 70.If temperature difference is more than temperature difference threshold, it is dirty stifled that controller 50 judges that air-conditioner 100 does not occur.
For example, it is 46 DEG C that controller 50 calculates the internal temperature of the motor 10 for obtaining with the temperature difference of ambient temperature, then judge air-conditioner
100 do not occur dirty stifled, and preserve judgement information in second memory 70.
In sum, air-conditioner according to embodiments of the present invention, by controller according to the internal temperature and environment of motor
Temperature, and the supply voltage of motor, you can voluntarily judge the running status of air-conditioner, such as controller according to internal temperature and
The temperature difference of ambient temperature judges the running status of motor, and then when motor operation is normal, according to temperature difference and supply voltage
The dirty stifled state of air-conditioner is judged, and then is voluntarily judged as that the conventional maintenance of air-conditioner is provided by air-conditioner to judge
Foundation, air-conditioner are more intelligent.
In flow chart or here any process described otherwise above or method description are construed as, expression includes
It is one or more for realizing specific logical function or process the step of the module of code of executable instruction, fragment or portion
Point, and the scope of the preferred embodiment of the present invention includes other realization, wherein the suitable of shown or discussion can not be pressed
Sequence, including according to involved function by it is basic simultaneously in the way of or in the opposite order, carry out perform function, this should be of the invention
Embodiment person of ordinary skill in the field understood.
Expression or here logic described otherwise above and/or step, for example, are considered use in flow charts
In the order list of the executable instruction for realizing logic function, may be embodied in any computer-readable medium, for
Instruction execution system, device or equipment (as computer based system, the system including processor or other can hold from instruction
The system of row system, device or equipment instruction fetch execute instruction) use, or with reference to these instruction execution systems, device or set
It is standby and use.For the purpose of this specification, " computer-readable medium " can any can be included, store, communicate, propagate or pass
The dress that defeated program is used for instruction execution system, device or equipment or with reference to these instruction execution systems, device or equipment
Put.The more specifically example (non-exhaustive list) of computer-readable medium is including following：With the electricity that one or more connect up
Connecting portion (electronic installation), portable computer diskette box (magnetic device), random access memory (RAM), read only memory
(ROM), erasable edit read-only storage (EPROM or flash memory), fiber device, and portable optic disk is read-only deposits
Reservoir (CDROM).In addition, computer-readable medium can even is that the paper that can print described program thereon or other are suitable
Medium, because for example by carrying out optical scanning to paper or other media edlin, interpretation can then be entered or if necessary with which
His suitable method is processed to electronically obtain described program, is then stored in computer storage.
It should be appreciated that each several part of the present invention can be realized with hardware, software, firmware or combinations thereof.Above-mentioned
In embodiment, the software that multiple steps or method can be performed in memory and by suitable instruction execution system with storage
Or firmware is realizing.For example, if realized with hardware, and in another embodiment, can be with well known in the art
Any one of row technology or their combination are realizing：With for the logic gates of logic function is realized to data signal
Discrete logic, the special IC with suitable combinational logic gate circuit, programmable gate array (PGA), scene
Programmable gate array (FPGA) etc..
Those skilled in the art are appreciated that to realize all or part of step that above-described embodiment method is carried
Suddenly the hardware that can be by program to instruct correlation is completed, and described program can be stored in a kind of computer-readable storage medium
In matter, the program upon execution, including one or a combination set of the step of embodiment of the method.
Additionally, each functional unit in each embodiment of the invention can be integrated in a processing module, it is also possible to
It is that unit is individually physically present, it is also possible to which two or more units are integrated in a module.Above-mentioned integrated mould
Block both can be realized in the form of hardware, it would however also be possible to employ the form of software function module is realized.The integrated module is such as
Fruit using in the form of software function module realize and as independent production marketing or use when, it is also possible to be stored in a computer
In read/write memory medium.
Storage medium mentioned above can be read only memory, disk or CD etc..
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
Example ", or the description of " some examples " etc. mean specific features with reference to the embodiment or example description, structure, material or spy
Point is contained at least one embodiment or example of the present invention.In this manual, to the schematic representation of above-mentioned term not
Identical embodiment or example are referred to necessarily.And, the specific features of description, structure, material or feature can be any
One or more embodiments or example in combine in an appropriate manner.
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
Understanding can carry out various changes, modification, replacement to these embodiments without departing from the principles and spirit of the present invention
And modification, the scope of the present invention is by claims and its is equal to limit.
Claims (10)
1. a kind of conditioners running conditions determination methods, it is characterised in that comprise the following steps：
The internal temperature and ambient temperature of motor in detection air-conditioner, and detect the supply voltage of the motor；
The motor whether normal operation is judged according to the internal temperature and ambient temperature of the motor；
If the motor operation is normal, according to the supply voltage and the internal temperature and ambient temperature pair of the motor
The dirty stifled state of the air-conditioner is judged.
2. conditioners running conditions determination methods as claimed in claim 1, it is characterised in that according to the inside temperature of the motor
Degree and ambient temperature judge whether normal operation is specifically included the motor：
The internal temperature of the motor and the temperature difference of ambient temperature are calculated, and obtains the stall temperature difference threshold value of the motor；
Judge the temperature difference whether more than or equal to stall temperature difference threshold value；
If the temperature difference is more than or equal to the stall temperature difference threshold value, judges that the motor occurs stall failure, enter
Row alarm.
3. conditioners running conditions determination methods as claimed in claim 2, it is characterised in that also include：
If the temperature difference is less than the stall temperature difference threshold value, determine whether the temperature difference whether in the first temperature
Difference scope；
If the temperature difference be in the first temperature difference scope, judge the motor access failure power supply or fault or
In decompression state.
4. conditioners running conditions determination methods as claimed in claim 1, it is characterised in that according to the supply voltage and
The internal temperature and ambient temperature stifled state dirty to the air-conditioner of the motor carries out judgement and specifically includes：
Obtain the corresponding voltage class ranges of supply voltage of the motor；
Calculate the internal temperature of the motor and the temperature difference of ambient temperature；
The corresponding temperature difference threshold of the voltage class ranges is obtained, and the temperature difference is corresponding with the voltage class ranges
Temperature difference threshold is compared；
If the temperature difference is less than or equal to the temperature difference threshold, the air-conditioner is in dirty stifled state；
If the temperature difference is more than the temperature difference threshold, the air-conditioner does not occur dirty stifled.
5. a kind of air-conditioner, it is characterised in that include：
Motor；
First temperature detector, for detecting the internal temperature of the motor；
Second temperature detector, for detecting the ambient temperature of the motor；
Voltage detector, for detecting the supply voltage of the motor；
According to the internal temperature and ambient temperature of the motor, controller, the controller judge whether the motor just runs
Often, and when the motor operation is normal, further according to the supply voltage and the internal temperature and ambient temperature pair
The dirty stifled state of the air-conditioner is judged.
6. air-conditioner as claimed in claim 5, it is characterised in that first temperature detector is located at the iron core of the motor
Or cover internal.
7. air-conditioner as claimed in claim 5, it is characterised in that the second temperature detector is with the motor at a distance of default
Distance, is arranged on the periphery of the motor to detect the ambient temperature of the motor.
8. air-conditioner as claimed in claim 5, it is characterised in that also include：
First memory, for storing the stall temperature difference and the first temperature difference scope of motor, and is just stored in the motor
The internal temperature and environment temperature of the motor of correspondence different supply voltages when often operation and dirty stifled air-conditioner generation
The temperature difference of degree；
Second memory, for storing the dirty stifled status information of the air-conditioner.
9. air-conditioner as claimed in claim 8, it is characterised in that the controller is additionally operable to the inside temperature for calculating the motor
The temperature difference of degree and ambient temperature, and when the temperature difference is more than or equal to stall temperature difference threshold value, judge that the motor is sent out
Raw stall failure, and when the temperature difference is less than the stall temperature difference threshold value, whether determine whether the temperature difference
In the first temperature difference scope, and when the temperature difference is in the first temperature difference scope, judge the motor access failure
Power supply or fault are in decompression state.
10. air-conditioner as claimed in claim 9, it is characterised in that the controller is additionally operable to the power supply for obtaining the motor
The corresponding voltage class ranges of voltage, and the internal temperature of the motor and the temperature difference of ambient temperature are calculated, by the temperature
Difference temperature difference threshold corresponding with the voltage class ranges is compared, and is less than or equal to the temperature difference threshold in the temperature difference
When, then judge that the air-conditioner, in dirty stifled state, when the temperature difference is more than the temperature difference threshold, then judges the air-conditioning
Device does not occur dirty stifled.
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| CN111397089B (en) * | 2020-03-26 | 2022-02-01 | 广东美的制冷设备有限公司 | Air conditioner detection method, air conditioner and computer readable storage medium |
| CN111594980A (en) * | 2020-06-02 | 2020-08-28 | 宁波奥克斯电气股份有限公司 | Air conditioner filth blockage judging method and device, medium and air conditioner |
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